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Coating process for the coating of an interior of a pipework system as well as a sub-distributor and a working equipment for the treatment of a pipework system

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Coating process for the coating of an interior of a pipework system as well as a sub-distributor and a working equipment for the treatment of a pipework system


A coating process for the interior of a pipework system, which includes a subsystem having a first part-system and a second part-system coupled to the first part-system, wherein the part-system can be pressurized by a pressure difference via a first connection of the first part-system and via a second connection of the second part-system, and wherein the first connection of the second part-system is identical to the second connection of the first part-system and then the first connection of the second part-system is pressurized after the coating material leaves the second connection of the first part-system so that the first part-system and the second part-system is consecutively fed with the coating material.


Browse recent Cec-systems Sa patents - Unterengstringen, CH
USPTO Applicaton #: #20140060429 - Class: 118696 (USPTO) -
Coating Apparatus > Program, Cyclic, Or Time Control



Inventors: Roben Ohanessian

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The Patent Description & Claims data below is from USPTO Patent Application 20140060429, Coating process for the coating of an interior of a pipework system as well as a sub-distributor and a working equipment for the treatment of a pipework system.

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CROSS REFERENCE TO RELATED APPLICATIONS

This patent application is a divisional of U.S. patent application Ser. No. 12/680,895, filed Jul. 6, 2010, (now allowed) which claims priority to National Stage of International Application No. PCT/EP2008/060795 filed Aug. 18, 2008, the full disclosures of which are incorporated herein by reference in their entirety.

BACKGROUND OF THE INVENTION

The invention relates to a coating process for the coating of an interior of a pipework system, as well as to a sub-distributor and a working equipment for the treatment of a pipework system in accordance with the preamble of the independent claim of the respective category.

Such processes are used for drying oxidizing or otherwise corroding water pipes in buildings, for derusting them by means of sand blasting, and for coating them subsequently with an epoxy resin coating or with an other plastic layer.

Mostly, water pipes of a building are subdivided in several pipelines. A typical example is a pipeline in a plumbing unit in an apartment or in a house. Water pipes for cold water constitute a first pipeline leading to a water-closet, a bathtub, a washbasin, and a shower. Water pipes for hot water leading to a washbasin, a bathtub, and a shower constitute a second pipeline. The water pipe for hot water is supplied by a hot water boiler. The pipes establishing the pipelines for hot water can corrode and rust, too. Further pipelines in houses and apartments are in the kitchen and in the laundry, are constituted by pipeline systems for heating installations and so on.

Nowadays, the most common application of known working processes is the coating of cold water pipes and pipelines in buildings. Regarding buildings, a frequently given coating problem is that no building plans for the sanitary pipeline system are available. And if such building plans are available, the pipes are very often installed different from that shown in the building plans. Regarding the coating processes known so far, this can have the consequence that some pipe sections are not coated. Later on, this problem will be highlighted with the help of FIG. 3 and FIG. 4. Regarding known processes, the still fluid coating material is blown into each connecting pipe, for example into the pipes for the toilet, the washbasin, and the bathtub at the same time. Thereby, an amount of coating material is blown into each connecting pipe which amount was determined from the length and the diameter of the pipes given in the building planes.

In case that the effective length of pipes is identical to the length determined from the building planes, it can be assumed that the coating is perfect. But it happens that the pipes used have an inner diameter which is completely or partly greater than assumed so that the calculated amount of coating material is not sufficient and a greater amount of coating material would be necessary for a perfect coating.

Also the contrary happens in practice, namely the amount of epoxy resin was calculated to much because the pipes are completely or partly thinner than assumed, or the length of the pipes is actually shorter than assumed, leading to that too much coating material is blown into a particular pipe section so that the inner surface of the pipe is coated too thick, or in an extreme example the pipe is clogged by the coating material.

Regarding the existing processes, there is no possibility to determine whether the pipeline is perfectly coated by the coating material, or whether the thickness of the coating has the preset reference value, respectively.

But also the preparation processes known from the state of the art which must be carried out beforehand the actual coating process have disadvantages not being eliminated until now.

Regarding this, the pipework system must be completely dewatered and dried in a first step. With regard to the known processes, after having drained the water being in the pipes at the lowest point, hot air is simply blown into the pipework system at one or more access points for a given period of time. Very often, in particular if the pipework system comprises a lot of bendings, the water is not completely drained since the water is retained in the bendings of the pipework system and, thus, is not blown out.

Strongly related problems are present at the following sand blasting of the pipework system. Regarding this, in particular the bendings are often only insufficiently cleaned by the sand blasting process or critical locations are reached not at all. In addition, the known processes have to work with high blasting pressures, in particular to get the problems at bendings under control, which, in case of thin or already strongly worn-out pipes, leads very often to the situation that the pipes are positively shot-through at the bendings by the sand blasting process, in turn leading to that the masonry in which the pipes are installed must be broken open, and the old pipes must be replaced by new ones, what actually should be avoided by the coating process.

Problems similar to the afore described in connection with the draining of the pipework system also consequently arise when dedusting the pipework system which must be done after the sand blasting process and before coating.

It is thus an object of the invention to suggest an improved coating process which renders possible to ensure in a controllable manner that all parts of the pipework system to be coated are coated having a preset thickness.

It is furthermore an object of the invention to provide an equipment with which the working process as well as the coating process can be carried out in a reliable, cost-effective, and simple way, preferably in a completely automated manner.

BRIEF

SUMMARY

OF THE INVENTION

The subject matters of the invention which satisfy these objects are characterized by the features of the independent claim of the respective category.

The respective depend claims relate to particularly advantageous embodiments of the invention.

Even if the invention is primary related to a coating process for the coating of an interior of a pipework system, in the framework of the present application a working process shall be described, too, which can be combined with the coating process in accordance with the invention in a particularly advantageous manner and which in particular can be carried out with the sub distributor according to the invention being also to be described thereinafter as well as with the working equipment including the sub distributor.

Hence, for reasons of clearness, at first a working process for the treatment of an interior of a pipework system shall be described, which pipework system includes a part-system between a first connection and a second connection, wherein the working process includes the following working steps: Providing a first working fluid being under an over-pressure with respect to an ambient pressure. Providing a second working fluid being under a low-pressure with respect to the ambient pressure. Thereby, the part-system is pressurized between the first connection and the second connection with the first working fluid provided under the over-pressure and the second working fluid provided under the low-pressure at the same time in such a way, that a fluid-flow of the first working fluid provided under the over-pressure is established through the part-system between the first connection of the part-system and the second connection of the part-system in a direction to the second working fluid provided under the low-pressure. Preferably, in at least one working step the direction of the fluid-flow through the part-system between the first connection and the second connection is reversed at least once.

Thus, it is essential for the new preferred working process that in at least one working step the direction of the fluid-flow through the part-system between the first connection and the second connection is reversed at least once. Because of that, on the one hand a reliable draining, drying, and dedusting of the pipework system to be renovated is possible for the first time, since in particular the residua in the bendings can be reliably removed. In addition, in particular the blasting process is much more gentle since it is blasted in both direction so that it can be worked with a smaller blasting pressure compared to the state of the art, and, nevertheless, the bendings of the pipework system are reliably cleaned.

The pipework system is in particular a networked pipework system including at least two networked sub-systems, preferably being networked by means of a networking-pipe, in particular by an uptake pipe or by a down pipe and the networked sub-systems preferably including at least one part-system, wherein the sub-systems includes at least one second part-system being connected to a first part-system.

In practice, the pipework system often includes a plurality of sub-systems, being preferably established in a plurality of floors of a building. Preferably, for each sub-system a main-distributor is provided which main-distributor provides the first working fluid and/or the second working fluid to the attached sub-system, and wherein the main-distributor is in particular a staircase-air-distributor.

Thereby, a sub-distributor is provided within each sub-system, with the sub-distributor making the first working fluid and/or the second working fluid available to the part-system of the sub-system, wherein the sub-distributor is in particular an air-distributor for a plumbing unit and/or wherein the sub-distributor is preferably designed in such a way that the first working fluid or the second working fluid can be made alternatively and switchably available to an outlet of the sub-distributor, wherein the first working fluid and/or the second working fluid is made available to the sub-distributor preferably via the main-distributor.

In practice, the first working fluid being provided under the over-pressure is provided by a compressor, in special cases in which a compressor cannot be used, it is provided by a over-pressure reservoir and/or the second working fluid being provided under the low-pressure is provided by a vacuum machine or by a low pressure reservoir.

Even if in practice due to cost requirements the first working fluid and the second working fluid is simply air, it is also possible to use a gas, for example oxygen or nitrogen, or an inert gas such as for example a noble gas or an organic gas, for example in order to dissolve organic residues within the pipework system.

Preferably, an air control station is provided for adjusting and/or regulating the over-pressure and/or a water separator and/or a cyclone filter for separating a fluid is provided, in particular for separating water, an oil, an epoxy resin and/or for separating particles, in particular abrasive particles, especially sand and/or for separating an other environment-friendly or not environment-friendly material.

In principle, the pipework system to be renovated can be any pipework, for example, but not only, a pipework system of a building, in particular a cold water pipework system, a hot water pipework system, a circulation pipework system, a pipework system for a heating installation, in particular a floor heating installation, a gas pipework system, a wastewater pipework system, a water pipework system for a roof, a pipework system for a swimming-pool, a pipework system for pressurized air, a pipework system for distributing oil, and/or the pipework system is a pipework system for an industrial facility, in particular a pipework system for wastewater, gas, oil, petroleum, crude oil, diesel oil, gasoline, chemical products, or for other industrial gases, industrial fluids or industrial solids, and/or wherein the pipework system is a public pipework system for pipelining one of the aforementioned fluids, other fluids, or solids.

For operating the new advantageous working process in an efficient manner, the entire pipework system is networked at least with all main-distributors and/or with all sub-distributors and/or with all air control stations and/or with all water separators and/or with all cyclone filters before starting the working process.

The working process can be operated in a particularly efficient way by providing an electronic data processing installation and by designing at least some of the main-distributors and/or of the sub-distributors and/or of the air control stations and/or of the water separators and/or of the cyclone filters in such a way that the working process can be at least partly carried out automatically and/or program-controlled.

Regarding a special embodiment, the new working process is a preparation process for draining and/or the desiccation of the pipework system, which preparation process includes the following steps: providing a first preparation fluid, in particular air, which first preparation fluid is under the preparation over-pressure with respect to the ambient pressure. Providing a second preparation fluid, in particular air, which second preparation fluid is under the preparation low-pressure with respect to the ambient pressure. Thereby, in a first preparation step the part-system is pressurized at the same time via the first connection with the first preparation fluid provided under the preparation over-pressure and via the second connection with the second preparation fluid provided under the preparation low-pressure in such a way that a fluid-flow of the first preparation fluid is established through the part-system between the first connection of the part-system and the second connection of the part-system in a direction from the first connection to the second connection in such a way, that the part-system is pre-emptied from a procedural matter, in particular from water. In a second preparation step the part-system is pressurized at the same time via the first connection with the second preparation fluid provided under the preparation low-pressure and via the second connection with the first preparation fluid provided under the preparation over-pressure in such a way that the direction of the fluid-flow through the part-system between the first connection and the second connection is reversed so that the part-system is post-emptied from a residual remain of the procedural matter.

When performing in the first part-system the first preparation step and the second preparation step, preferably at least one connection of the second part-system is disconnected from the first preparation fluid and from the second preparation fluid.

After the first part-system, the second part-system is in practice often at first pre-emptied and subsequent to that post-emptied.

For blowing out the part-system after the pre-emptying and the post-emptying of the part-system, all connections of all part-systems of the sub-system are advantageously pressurized for a preset blowing-out period by the first preparation fluid being provided under the over-pressure.

Very often, at least two coupled subsystems are present being coupled to each other by a networking-pipe and the networking-pipe and the sub-systems, being successively pre-emptied and post-emptied, are subsequently pressurized and blown out by the preparation fluid for the preset blowing-out period.

After the entire pipework system is emptied, the pipework system should be dried during a preset bake-out period at a preset temperature, preferably at 37° for ca. 45 min. by using a bake-out medium, in particular by using hot air.

Regarding a further preferred embodiment, the working process in accordance with the invention is a blasting process, in particular a mechanically abrasive blasting process, preferably a sand blasting process for blasting the pipework system, which blasting process includes the following steps: Providing a first blasting fluid comprising a blasting means, in particular an air-sand mixing with sand, which first blasting fluid is under the blasting over-pressure with respect to the ambient pressure. Providing a second blasting fluid, in particular air, which second blasting fluid is under the blasting low-pressure with respect to the ambient pressure, wherein in a first blasting step the part-system is pressurized at the same time via the first connection with the first blasting fluid provided under the blasting over-pressure and via the second connection with the second blasting fluid provided under the blasting low-pressure in such a way that a fluid-flow of the first blasting fluid is established through the part-system between the first connection of the part-system and the second connection of the part-system in a direction from the first connection to the second connection in such a way, that an inner surface of the part-system is pre-blasted and that in a second blasting step the part-system is pressurized at the same time via the first connection with the second blasting fluid provided under the blasting low-pressure and via the second connection with the first blasting fluid provided under the blasting over-pressure in such a way that the direction of the fluid-flow through the part-system between the first connection and the second connection is reversed, so that the part-system is successively in two opposite directions at first pre-blasted and then post-blasted with the blasting means.

The blasting process, for example for the cleaning of copper pipes, can be performed by using abrasive particles, especially by using sand having a grain size of 0.1 mm to 0.3 mm.

Galvanized pipes can be advantageously blasted by using abrasive particles, preferably sand having a grain size of 1 mm to 2.3 mm, wherein for example waste pipes can be blasted by using abrasive particles, preferably sand having a grain size of 3 mm to 5 mm.

When performing in the first part-system the first blasting step and the second blasting step, preferably at least one connection of the second part-system is disconnected from the first blasting fluid and from the second blasting fluid, wherein after having blasted the first part-system, the second part-system is for example at first pre-blasted and subsequent to that post-blasted.

Mostly, at least two coupled sub-systems are provided being coupled to each other via a networking-pipe, wherein after having blasted all part-systems of the first sub-system, at first the networking-pipe is blasted and subsequently the further sub-system is blasted.

After the blasting of the pipework system, a dedusting process is advantageously applied for dedusting it, including the following steps: Providing a first dedusting fluid, in particular air, which first dedusting fluid is under a dedusting over-pressure with respect to the ambient pressure. Providing a second dedusting fluid, in particular air, which second dedusting fluid is under the dedusting low-pressure with respect to the ambient pressure. Thereby, in a first dedusting step the part-system is pressurized at the same time via the first connection with the first dedusting fluid provided under the dedusting over-pressure and via the second connection with the second dedusting fluid provided under the dedusting low-pressure in such a way that a fluid-flow of the first dedusting fluid is established through the part-system between the first connection of the part-system and the second connection of the part-system in a direction from the first connection to the second connection in such a way, that the part-system is pre-dedusted from the blasting means, in particular from sand. And in a second dedusting step the part-system is pressurized at the same time via the first connection with the second dedusting fluid provided under the dedusting low-pressure and via the second connection with the first dedusting fluid provided under the dedusting over-pressure in such a way that the direction of the fluid-flow through the part-system between the first connection and the second connection is reversed, so that the part-system is post-dedusted from a residual remain of the blasting means.

When performing in the first part-system the first dedusting step and the second dedusting step, preferably at least one connection of the second part-system is disconnected from the first dedusting fluid and from the second dedusting fluid, wherein after the first part-system, the second part-system is especially at first pre-dedusted and subsequent to that post-dedusted.

For dedusting the part-system after the pre-dedusting and the post-dedusting of the part-system, all connections of all part-systems of the sub-system are advantageously pressurized for a preset blowing-out period by the first dedusting fluid being provided under the over-pressure.

The at least two coupled sub-systems being connected to each other via the networking-pipe and being successively pre-dedusted and post-dedusted, are subsequently pressurized and blown-out by the dedusting fluid for the preset blowing-out period.

After the entire pipework system is dedusted, the pipework system is particularly advantageously heated up during a preset bake-out period at a preset temperature, preferably at 37° for ca. 45 min. by using a bake-out medium, in particular by using hot air, and/or the pipework system is during the first dedusting step and/or during the second dedusting step dedusted and heated-up by the first dedusting fluid, which first dedusting fluid is heated to a preset temperature.

Thus, the invention as such is related to a coating process for the coating of an interior of a pipework system with a coating material, preferably for the coating with an epoxy resin, which pipework system includes a part-system between a first connection and a second connection, wherein the coating process includes in a first process step the following steps in an arbitrary order: Providing a first pressure fluid, in particular air, which first pressure fluid is under a coating over-pressure with respect to an ambient pressure. Providing a second pressure fluid, in particular air, which second pressure fluid is under a coating low-pressure with respect to the ambient pressure. Providing the coating material in a storage tank, in particular in a storage hose. Connecting a pressure outlet of the storage tank with the first connection of the first part-system. Connecting a pressure inlet of the storage tank with the first pressure fluid being under the coating over-pressure. Connecting the second connection of the first part-system with the second pressure fluid being under the coating low-pressure. In a second process step the first part-system is pressurized by a differential pressure by applying via the first connection of the first part-system the first pressure fluid being under the coating over-pressure and, at the same time, by applying via the second connection of the first part-system the second pressure fluid being under the coating low-pressure in such a way that a fluid-flow of the coating material and the first pressure fluid is established through the part-system between the first connection of the first part-system and the second connection of the first part-system in a direction from the first connection to the second connection in such a way, that an inner surface of the part-system is being coated by the coating material. According to the invention, the second connection of the first part system is pressurized with the first pressure fluid being under the coating over-pressure after a leaving of the coating material out of the second connection of the first part-system at a checkpoint is detected.

In practice, the pipework system is frequently a networked pipework system including at least two networked sub-systems, preferably being networked by means of a networking-pipe, in particular by an uptake pipe or by a down pipe and the networked sub-systems preferably including at least one part-system.

The sub-system can include at least one second part-system being coupled to the first sub-system, wherein the part-system can be pressurized by a pressure difference via a first connection of the second part-system and via a second connection of the second part-system, and wherein the first connection of the second part-system is identical to the second connection of the first part-system.

Particularly preferably, the coating material is provided to the part-systems of a given sub-system by feeding it into the sub-system via that connection of the sub-system, which connection has the biggest distance to a networking-pipe being assigned to the sub-system.

After the entire pipework system is dedusted, in order to heat up the pipework system, the pipework system can be heated up during a preset bake-out period at a preset temperature, preferably at 37° for ca. 45 min. by using a bake-out medium, in particular by using hot air, and/or during a dedusting process and/or during a preparation process, the pipework system can be heated up to the preset temperature by a dedusting fluid, in particular by hot air, and/or the pipework system can be heated up to the preset temperature by a preparation fluid, in particular by hot air.

Regarding a special embodiment, the second connection of the second part-system is pressurized by the second pressure fluid being provided under the coating low-pressure until a leaving of the coating material out of the second connection of the second part-system is detected, and after that, the second connection of the second part-system is pressurized by the first pressure fluid being provided under the coating over-pressure.

After having coated all part-systems of a first sub-system, preferably all connections are pressurized by the first pressure fluid being provided under the coating over-pressure, and the networking-pipe being connected to the sub-system is coated at least as long as a leaving of the coating material out of the networking-pipe is detected at a checkpoint, wherein the networking-pipe is preferably pressurized by the second pressure fluid being provided under the coating low-pressure at a suction side.

In practice, the first sub-system is often connected to a further sub-system via the networking-pipe, in which further sub-system all connections of the further sub-system are pressurized by the second pressure fluid being provided under the coating low-pressure, and wherein the networking-pipe is coated until a leaving of the coating material out of a second connection of a part-system of the further sub-system is detected at checkpoint.

After that, the further sub-system can be coated in accordance with a process as above described.

Especially, a detection means can be provided for the detection of the leaving of the coating material, and the detection means is preferably a transparent hose and/or a detection sensor, in particular an optic, acoustic or an electromagnetic detection sensor.

It goes without saying that in practice the pipework system can include a plurality of sub-systems being preferably established in a plurality of floors of a building.

Thereby, a main-distributor can be provided for each sub-system, which main-distributor provides the first pressure fluid and/or the second pressure fluid to the assigned sub-system, and wherein the main-distributor is in particular a staircase-air-distributor.

Preferably, a sub-distributor is provided within each sub-system which sub-distributor provides the first pressure fluid and/or the second pressure fluid to the part-system of the sub-system, wherein the sub-distributor is in particular a distributor for a plumbing unit, and/or wherein the sub-distributor is designed in such a way that the first pressure fluid and/or the second pressure fluid can be alternatively and/or switchable provided at an outlet of the sub-distributor.

As a rule, but not compulsory, the first pressure fluid and/or the second pressure fluid is provided to the sub-distributor via the main-distributor.

The first working fluid being provided under the over-pressure is provided by a compressor or by an over-pressure reservoir, wherein the second working fluid being provided under the low-pressure is preferably provided by a vacuum machine or by a low-pressure reservoir.

For adjusting and/or controlling the over-pressure an air control station is provided and/or a water separator and/or a cyclone filter for separating a fluid is provided, in particular for separating water, an oil, an epoxy resin and/or for separating particles, in particular abrasive particles, especially for separating sand, and/or for separating an other environment-friendly or not environment-friendly material.

Among other things, the pipework system may be a pipework system of a building, in particular a cold water pipework system, a hot water pipework system, a circulation pipework system, a pipework system for a heating installation, in particular a floor heating installation, a gas pipework system, a wastewater pipework system, a water pipework system for a roof, a pipework system for a swimming-pool, a pipework system for pressurized air, a pipework system for distributing oil, and/or the pipework system may be a pipework system for an industrial facility, in particular a pipework system for wastewater, gas, oil, petroleum, crude oil, diesel oil, gasoline, chemical products, or for other industrial gases, industrial fluids or industrial solids, or the pipework system is a public pipework system for pipelining one of the aforementioned fluids, other fluids, or solids.

Advantageously, before starting the coating process, the entire pipework system is networked with at least all main-distributors, and/or with all sub-distributors and/or with all air control stations and/or with all water separators and/or with all cyclone filters.

In practice, frequently at least some of the sub-systems are provided on several floors being arranged one upon the other, in particular in a building, and the coating process is started in the topmost floor, wherein the sub-systems are subsequently coated from the topmost floor down to the lowermost floor.

An electronic data processing installation can especially be provided, wherein at least some of the main-distributors and/or of the sub-distributors and/or of the air control stations and/or of the water separators and/or of the cyclone filters are designed in such a way that the coating process can at least partly be carried out in a automatic and/or program controlled manner.

The invention is also related to a combined process, wherein in a first process step a preparation process in accordance with the invention is carried out, and/or a blasting process according to the invention and/or a dedusting process is carried out and/or wherein a coating process as described above is finally carried out.

Furthermore, the invention is related to a sub-distributor, in particular to an distributor for a plumbing unit for carrying out an above described process, with the sub-distributor comprising the following components: an over-pressure chamber having an over-pressure inlet for pressurizing the over-pressure chamber with a first working fluid provided under an over-pressure. A low-pressure chamber having a low-pressure inlet for pressurizing the low-pressure chamber with a second working fluid provided under a low-pressure. An over-pressure outlet for providing the first working fluid to a connection of a part-system in a sub-system. An low-pressure outlet for providing the second working fluid to a connection of the part-system in the sub-system.

According to the invention, a switching means is provided so that a pressure line being connected to the sub-distributor can be pressurized with the first working fluid and/or with the second working fluid.

The over-pressure outlet and the low-pressure outlet are preferably connected to each other with a common outlet adaptor.

Thereby, the over-pressure inlet and/or the low-pressure inlet and/or the over-pressure outlet and/or the low-pressure outlet can be separately closeable equipped with an closing-off means, respectively, in particular with an mechanical cut-off cock, especially with an automatic valve, preferably with an electrically operable valve.

For the determination of an operating parameter, a sensor means can be provided, for example for determining a temperature and/or a pressure, and or a switch setting of a closing-off means and/or for determining an other operating parameter of the sub-distributor and/or a sensor means can be provided at the sub-distributor for monitoring a first working fluid and/or a second working fluid.

In particular for automation, the sub-distributor can be designed and provided with electrical connections in such a way that a signal of the sensor means can be imported into a control system and/or the closing-off means are controllable by the control system, in particular being automatically and/or program-controlled closed-loop and/or open-loop controllable.

The invention relates furthermore to a working equipment for the treatment of a pipework system, the working equipment including a sub-distributor a described above for providing the first working fluid being provided under the over-pressure and the second working fluid provided under the low-pressure to a connection of a part-system in a sub-system.

Regarding the working equipment in accordance with the invention, the first working fluid being provided under the over-pressure is preferably provided by a compressor or by an over-pressure reservoir and/or the second working fluid provided under the low-pressure is provided by a vacuum machine or by a low-pressure reservoir.

Particularly advantageously, a main-distributor, in particular a staircase-air-distributor being fluidly connected to the sub-distributor is provided for supplying the first working fluid and/or for supplying the second working fluid to the sub-distributor, wherein for adjusting or controlling the over-pressure of the first working fluid, the main-distributor and/or the sub-distributor is supplied by an air control station in the operation state.

Especially due to antipollution reasons, a water separator and/or a cyclone filter can be provided for separating a fluid, in particular for separating water, oil, an epoxy resin and/or for separating particles, in particular abrasive particles, especially for separating sand, and/or for separating an other environment-friendly or not environment-friendly material, wherein the water separator and/or the cyclone filter can in particular be provided between the vacuum machine and/or the low-pressure reservoir and the main-distributor and/or the sub-distributor.

For automation, at the compressor and/or at the over-pressure reservoir and/or at the vacuum machine and/or at the low-pressure reservoir and/or at the air control station and/or at the water separator and/or at the cyclone filter and or at the main-distributor and/or at the sub-distributor and/or at the detection means for detecting the leaving of the coating material out of the connection of the part-system and/or at a pipe of the pipework system, a sensor for monitoring a operation parameter, in particular for monitoring a pressure or a temperature can be additionally provided.

Furthermore, at the compressor and/or at the over-pressure reservoir and/or at the vacuum machine and/or at the low-pressure reservoir and/or at the air control station and/or at the water separator and/or at the cyclone filter and/or at the main-distributor and/or at the sub-distributor and/or at the detection means for detecting the leaving of the coating material out of the connection of the part-system and/or at the pipe of the pipework system, an automatically, in particular an electrically operable valve can be provided, so that a fluid flow can be automatically generated or can be automatically cut off by the automatic valve.

Advantageously, a control system, particularly comprising an electronic data processing installation is additionally provided, so that, at least partly, the working equipment is completely automatically and/or program-controlled operable.

BRIEF DESCRIPTION OF THE DRAWINGS

In the following, the invention will be explained in more detail with reference to the schematic drawing. There are shown:

FIG. 1 an overview of a basic cold water installation;

FIG. 2 correct installation of the pipes of the cold water installation according to FIG. 1 within the stonework of a building;

FIG. 3 incorrectly assumed installation of the pipes according to FIG. 2;

FIG. 4 error when coating by using a process known from the prior art;

FIG. 5a-5i a new draining process;

FIG. 6a-6j a new sand blasting process;

FIG. 7a-7i a new dedusting process;

FIG. 8a-8n a coating process in accordance with the invention;

FIG. 9 an overview of an installation of a working equipment according to the invention;

FIG. 10 a distributor for a plumbing unit according to the invention;



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stats Patent Info
Application #
US 20140060429 A1
Publish Date
03/06/2014
Document #
14077078
File Date
11/11/2013
USPTO Class
118696
Other USPTO Classes
118 50
International Class
16L58/10
Drawings
29


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