WO2009046783A1 - Cleaning device having water recirculation for heat exchangers - Google Patents

Abstract

According to the invention, the water used to clean surfaces of the heat exchanger is collected, purified, and supplied for reuse.

Description

 Cleaning device with water return for heat exchangers

The invention relates to a particularly portable cleaning device for heat exchangers, in particular for air conditioning systems.

Air condensation plants (Lukos) are used as a closed system for condensing the exhaust steam or the excess steam of turbine plants. The total cooling surface is designed for the amount of steam produced. It is assumed that a certain heat transfer from the cooling surface into the ambient air. The heat transfer, however, does not remain constant. On the cooling surfaces it comes to the outside for pollution. Pollution is caused, inter alia, by pollen, leaves, industrial emissions, flue dust and leads to deposits on the cooling surfaces. As a result, the heat transfer deteriorates.

Initially occurring impurities can be compensated by possibly existing speed reserves of the fans. This already has the disadvantage of higher energy consumption

Operation of the plant.

Further pollution can not be compensated. It leads to one

Reduction of heat transfer and thus to a reduced cooling capacity for the

Steam condensation.

As a result of the decreasing cooling effect, the vapor pressure in the exhaust steam line increases. The turbine loses power. The power generation of the generator is reduced. Usually, the systems react to this. Are e.g. Turbines are designed for an exhaust steam pressure of O, 2bar absolute, they are switched off with an increase in the vapor pressure to 0.8 bar by monitoring devices.

With water coolers and product coolers, as they occur preferably in the chemical industry, the same problems are found. Again, a decrease in the heat transfer initially be compensated by existing air volume reserves. Thereafter, however, there is a steady increase in temperature in the water cycle or product flow. This leads in the foreseeable future to a malfunction.

The above relationships are well known to the operators.

It is obvious that the contamination of the cooling surfaces is counteracted by cleaning.

Preferably, the cleaning is carried out manually. The cleaning work is usually transferred to the cleaning crews, which are also subject to other cleaning work. There is a tendency to award this work as a complete package. For all cleaning companies, however, only manual steam jet equipment or high pressure water jet equipment are available. The success of working with a handheld device is low. It is rinsed off only the loose-fitting dirt. In addition, the cooling surfaces are arranged in multiple layers or consist of fin coolers with very high ribs. In the case of multi-layer cooling tubes, an improper procedure or the use of unsuitable equipment only causes a loosening of dirt on the upper layer and an attachment to lower rows / layers. Cooling surfaces with high ribs are at the same risk. On the way, the cooling air can even be blocked from passing through the radiator.

In addition, it has been shown on coolers with aluminum cooling fins that can easily be caused with the high pressure equipment damage to the ribs. Excessive pressure will bend the ribs if handled improperly. This is not immediately obvious to the operators, because the cooling surfaces are usually not regularly driven, i. to be watched. So is not to control, when and who did what damage. As a result, there have been situations in which the radiator were unusable by cleaning.

An older proposal provides stationary cleaning facilities, with which a reliable cleaning of the cooling surfaces is achieved. In such cleaning devices, the cleaning nozzles, their position and the cleaning pressure can be adapted to the cooling surfaces. This will allow actual cleaning without the risk of damage. Another prior proposal provides that a cleaning device for multiple cooling surfaces (cooling registers) of a system is used. This is achieved by means of a driving system. The driving system resembles a crane track, with which the device is converted from one cooling surface to the other.

However, the stationary cleaning devices and the implementable cleaning device have in common that initially a considerable investment must be made. This naturally precludes the use of such devices.

According to another older proposal of DE 19800018 A, the above problems are met by the fact that a) a portable cleaning device is provided with a vertically over the height of the cooling register extending carriage, which is horizontally movable and carries a vertically movable thereon nozzle. b) the plurality of cooling tubes or more cooling registers overlaps and c) the cleaning device has a support structure with a running in the direction of the trolley edge profile and the carriage is arranged movable on the edge profile and / or the support structure is length-adjustable by connectors

In this case, two or more Kantproflle can be arranged side by side. However, the use of a single edge profile involves a special step towards an optimally lightweight and functionally reliable device. The weight advantage of a single edge profile is not readily apparent, because several side by side arranged edge profiles with the same cost of material computationally have a greater bending resistance than a single edge profile. Nevertheless, it is not just about the larger moment of resistance. It is also important that the guide rollers do not cause deformation of the rolling surfaces. This leads to a minimum thickness of the rolling surfaces and edge profiles. Two minimum-thickness edge profiles can result in a greater cost of materials than a single, stable edge profile.

Preferably, the edge profile is formed as a hollow profile and length-adjustable by connectors. The extensibility facilitates work with a single device at different Lukos or the like. Regardless of the edge profile of the extensibility and the connector are therefore also of particular importance. The edge profile and the plug connection are favorable for a change in length. After the older proposal, the edge profile can be composed of several parts. However, the device may also have a head and a foot and between the head and foot a changeable for length change edge profile.

The plug-in connection is brought about by means of separate spikes / pins, which engage in two pipe ends to be connected to each other. But it can also mandrels / cones on the

Pipe ends are attached, so that a pipe with a mandrel / pin in the other

Pipe engages.

To further weight savings, the mandrels / pins hollow or in turn be designed as tubes.

The connector may be designed self-clamping and / or a mechanical

Be designed fuse.

Optionally, according to the older proposal, at the head and foot of the device there are arms for different purposes, e.g. for supporting and / or guiding and / or holding the

Device and / or for holding guide rollers / wheels / discs and / or for

Holder of drives and / or pumps may be provided.

The holders for wheels / wheels / discs can be arranged adjustable or fixed.

Optionally, the arms and / or head and / or foot may be releasably assembled from parts so that replacement in adaptation to particular needs is possible. Conveniently can be a plug connection as in the edge profile. This is beneficial if the arms, head and foot are made up of the same profiles.

Preferably, the drive includes a power transmission means such as a belt, chain, rope or belt, in particular a toothed belt, and a geared motor with a drive pinion. With the rollers / wheels / discs, the power transmission means is preferably passed over the head and foot and generates the necessary tension. To generate voltage, the associated roller / wheel / disc is adjustable transversely to the longitudinal direction of the power transmission means. The power transmission means engages the carriage and is moved by means of the geared motor. In this case, the power transmission means can be guided around the drive pinion or pressed by means of another roller / wheel / disc against the drive pinion.

To reduce weight, the use of aluminum for the profiles and a limited width of the nozzles or the nozzle assembly in the carriage contribute. The restriction is given with the number of nozzles arranged on a pipe in the nozzle.

Despite limited width, the nozzles or the nozzle block can clean all the cooling tubes below by processes along the entire width / length of the trolley. The heavy weight reduction also protects the cooling coils. This is especially important for cooling coils with sensitive cooling fins. The sensitive cooling tubes / ribs include e.g. those with rectangular cross-section, between which the cooling fins are guided back and forth as a meandering metal band.

In addition, the low weight brings no risk of excessive load on the cooling coil with it.

By overlapping several cooling registers and moving the cleaning nozzles in the trolley from one cooling register to the other, an optimal work design and working and operating time utilization is achieved.

The water supply to the cleaning device can take place via an entrained line, in particular a hose line. Optionally, the water is brought to the desired pressure via an intermediate pump. The pump can be attached to the device or placed separately in front of the device.

In particularly wide cooling systems with a plurality of juxtaposed registers, it is advantageous to provide in the upper part of the cooling coil and / or on the holder and / or on the building rails in or on which the device is movable, so that the cleaning device to implement on an adjacent cooling coil no longer needs to be solved, but can be moved. There are also other solutions for cleaning known. These include, for example, the previously published document WO92 / 04589. The document shows a cleaning device for a plate cooler, which is spanned by the horizontally extending cleaning device in its full width and the design is chosen so that the movable nozzle covers the entire surface to be cleaned. However, this type of construction has considerable static disadvantages compared with a construction known from DE 19800018 A1. In addition, the intended for the plate cooler cleaning device is not applicable to cleaning devices of DE 19800018 Al. In addition, the known cleaning device is not suitable for the cleaning of coolers with different dimensions.

From FR 2389090 and US 3843409 cleaning devices are also known. However, the local constructions do not go beyond the state of the art of WO92 / 0489.

The above developments are only part of the overall development efforts in this cleaning area. All developments aim to improve the mechanical parts of the device.

The invention has set itself another goal.

This is based on the finding that the previous cleaning with an extremely high

Water consumption is connected. The high water consumption is a significant cost factor that has not received any attention so far.

According to the invention, the water consumption is reduced by the fact that the cleaning water is at least partially collected, processed and returned.

By treatment, the water is purified. So far, the water is passed as waste water in the sewer system. There is a risk that the sewage system clogged. If not immediately, then in the long run. In particular, the usual under the manhole cover dirt catcher fill and can hinder the water flow. By cleaning the water in addition, the sewer system is protected from clogging and from the considerable dirt load. Optionally, one or more sewage inlets are closed and the water flowing into the closed sewage inlets is pumped out and cleaned. For closing operations in the sewer systems are suitable. These inserts can be exchanged for common grates or the like covers in the sewers. Conversely, the usual grates or the like covers can be replaced with the inserts serving for closing.

Optionally, sewage inlets with conventional dirt traps are also used. The usual dirt collector are pot-shaped, so that the inflowing water must first fill the dirt catcher before it can flow from the dirt catcher. In the simplest case, a dirty water pump is introduced in one or more open sewer drains after removing the grate and pumped down the collecting dirt collecting in the dirt catcher.

Optionally, special dirt catcher can be used. For this purpose, for example, particularly large volume dirt catcher suitable, which are also grown a gushy wastewater attack. The larger the volume of the dirt catcher, the easier and better the dirty water can be pumped out. The larger the amount of dirty water, the smoother the dirty water can be pumped out and the easier the level control in the dirt collector. Preferably, the volume of the waste water tank is at least 0.25 cubic meter, more preferably at least 0.5 cubic meter.

Various pumps are suitable for pumping out the dirty water. Submersible pumps are particularly easy to use as dirty water pumps.

For each of the pumps is a level control of the dirty water and a

Dry-running protection of advantage. The level rules usually also includes one

Dry-running protection, if the lowest switching point corresponds to the minimum level of dirty water at the pump.

For example, swimmers are known as level controllers. A particularly simple construction results when the dirt catcher due to its

Volume, taking into account the pump capacity, the entire accumulating water can absorb.

Depending on the design of the sewer inlets and / or depending on the pump capacity can

Capacity of the dirt trap even smaller than the amount of accumulating

Be dirty water.

Then, in an alternative, the dirt collector may have an overflow, so that the

Drainage tip drains into the sewer.

In the other alternative, the dirt catcher seals in the sewer inlet so far that the dirty water dammed up before the sewer inlet.

The dirty water can be taken up by the pump together with its dirt load and conveyed on. The dirty water pumps often work not self-priming, but are immersed with an impeller in the dirty water. The impellers may take various forms: free-flow impeller, single-channel wheel, multi-channel wheel, diagonal wheel, helical wheel, propeller wheel. The free stream impeller is often preferred because it has little susceptibility to interference and a large free passage for the solids. Such dirty water pumps are commercially available, as well as submersible pumps. The invention is not the type of dirty water pump, but pumping out the dirty water for the purpose of the above-described recycling of the water.

The dirty water pumped off with its dirt load is cleaned before returning to the nozzles of the cleaning device, so that the dirt does not clog the nozzles. The cleaning takes place in one or more containers, which are arranged next to or near the canalization inlet.

An advantage is the use of hose connections from the pump to the container. This facilitates the installation. In particular, with the hose connection and a change of the pump from a sewer inlet to the next inlet without moving the container is possible. Likewise, a moveable design of the container or pallet handling of the container facilitates handling of the system. The arrangement of the container on a trailer or the formation of the container as a trailer makes an adjustment of the container easily. The same applies to the arrangement of the container on one Range, because then with a forklift truck available on every plant a quick and easy adjustment of the container is possible. In a trained accordingly with connections for a forklift underside of the container an adjustment of the container with a forklift is possible even without a pallet.

For the assembly and disassembly of the pump and container, quick closures between the hose connection and the pump or from the hose connection to the container are advantageous. Optionally, each container has a plurality of hose connections, so that the container can be simultaneously acted upon by several pumps in different sewer connections with dirty water. The unneeded connections are closed by covers.

While the dirt trap described above assume that the dirty water is pumped out together with the dirt load, other dirt catcher can also have a filter design.

The filter design can serve on the one hand to forcibly clean overflowing water. This prevents overflowing water that the flow entrains the dirt in the sewer and distributed in other wastewater. The consequence of a distribution in other wastewater would be in increased cleaning of the wastewater. Optionally, the dirt catcher is provided in the overflow area with a perforated wall. The shape of the holes can be round and / or square. Preference is given to circular holes. Any shape of the holes can be burned or punched in the wall. The stamping or firing can be done after completion of the container or in any state of manufacture before completion, even before the actual production by firing or punching a specific sheet for the container.

The filter design of the dirt trap container is preferably used to at least partially clean the dirty water before pumping.

The filter construction of the dirt catcher in the sewer inlet can include one-stage or multi-stage filtering. Preferably, a single-stage filtering is provided in the dirt catcher and is carried out a desired further Water treatment in at least one downstream container, as described above. It is harmless if the dirty water must be raised at the same time, because provided in the dirt catcher submersible pump provides the necessary pressure easily.

The pump can be arranged permanently or liftable in the dirt catcher.

A uniform pumping process is best suited for the application of a submersible pump. Submersible pumps are often water-cooled, with the dirty water serving as cooling. At the same time submersible pumps are usually provided with a level control, which shuts off the pump when the submersible pump falls dry.

A larger volume is preferably given to the dirt collection containers by an extension of the containers in the axial direction. The extension of the container is limited by the structural conditions of the sewer. The container can be made no larger in conventional training of steel, as it allows the sewer. The maintenance of the same diameter or the same cross sections ensures that the dirt catcher fit into the waste water inlet.

After removal of the grate and cover usually provided at the sewer inlets, the pump or submersible pump or the suction pipe of the pump is positioned in the dirt collecting container. This applies both in the event that a conventional dirt trap is left in the sewer inlet as well as in the case of using a special dirt trap.

Preferably, the pump or its suction pipe is secured in the sewer inlet, so that the pump and its suction pipe does not float in the container. The sewer inlet usually has an inner collar for receiving the grate or lid. As a backup for the pump or the suction pipe, a lock can be used, which engages behind the inner collar.

From the dirt traps the dirty water is at least partially pumped, preferably completely pumped out. Partial pumping is the consideration on the basis that it is harmless if a part of the dirty water takes the hitherto customary way into the sewage system. The return of the remaining dirty water by means of pumping and cleaning already contains a significant improvement over the previous situation.

The complete pumping off can be achieved with appropriate pump performance and level control for the pump either by the fact that the pump keeps the dirty water level always below the overflow of the dirt trap. The complete pumping can also be achieved in that an overflow is prevented in the sewer. For this purpose, a seal of the overflow openings can be provided. This can also be achieved with a dirt trap, which is replaced during the cleaning process against the existing dirt trap and has no overflow.

Preferably, a slurry pump is also provided as a submersible pump. Submersible pumps are available with a capacity of 100 to more than 2000 liters per minute. As far as the amount of water released during the cleaning in the unit of time is greater than the pumping capacity, a plurality of pumps can be used, wherein preferably each sewer inlet is assigned a pump.

Preferably, pumps or submerged pumps with a hose connection are preferably used. In this case, connections are provided with a diameter of at least 57 mm (size C), even more preferably with a diameter of at least 1 10 (size B). The hoses can be easily rolled up and thus bring into a transport-favorable form.

Instead of the hose lines, pipelines can also be used; alternatively, hose lines and pipelines can also be used together.

Sewer inlets can be found on roads. Usually, roads pass the cooling systems described above or around the cooling systems. For larger systems, roads even pass under the cooling systems. Between the streets, the area under the refrigerators is usually fixed so far that the surface is passable. For the use of the sewer system according to the invention, it is advantageous to provide the not yet trained as a road surface below the cooling systems with a drainage slope and asphalt, so that the water drains to the nearest road and is fed with the inclination of the road of the nearest sewer , The usual drainage for water is 1 to 2 degrees. There are also larger drain slopes possible. The drainage slope can be easily achieved by dumping material and applying a corresponding slope / slope.

Instead of asphalting, another sealing of the surfaces may be made, e.g. by laying through concrete blocks or by laying other stones. Even such

Sealing causes with appropriate inclination a water drain to the nearest

Street.

The seal can also be achieved with a foil cover.

Sufficient are building films or the like, which are laid below the cooling systems.

For manufacturing and handling reasons, the films are preferably with a

Width of at most 5 meters, more preferably provided a width of at most 2m. Such films can still roll by hand and roll up.

In the application according to the invention, the films are laid overlapping under the cooling systems between the columns supporting them in the direction of fall so that the in

Greater direction higher lying film with its edge over the edge of the lower lying in the direction of sagging film lies. Due to this overlap, there is little danger that

Moisture between the overlapping web edges penetrates.

Preferably, the webs are laid with their longitudinal direction and transversely to the direction of fall, so that only a minimum number of overlaps or overlap edges is formed, which extend in the direction of fall. In addition, the slides can be attached to these

Overlaps are also glued together or sealed together in any other way. Other compounds of interest may also be included

Profiles belonging to foam profiles, which - in alignment with the overlap - below the

Overlap or be placed below the slides on the surface to be sealed.

This creates a bulge in the overlap area, of which the

Cleaning water / dirty water drains, instead of flowing between the edges. By sealing the invention, the cleaning water / dirty water can be almost completely collected and fed to return a cleaning.

After cleaning, the sheets serving for sealing are rolled up again and fed to the next site of use.

The mobile seal includes that the area under the refrigerators is selectively sealed one after the other in sections, with the seal portionwise

Cleaning follows. However, the mobile seal can also immediately cover the entire area under the refrigeration systems.

The seal not only has the advantage of collecting water. The seal can also be easily cleaned of the dirt that is splashed out with the cleaning water from the cooling registers and remains on the surface below the cooling systems. Advantageously, in the recycling of the water according to the invention on the drainage slope only a small fraction of the dirt remain below the cooling system, which remains with conventional cleaning and formation of the area under the radiators. Correspondingly low is the required cleaning of the seal in comparison to a cleaning required for conventional contamination.

In another variant of the invention is in the not sealed by roads

Surface area below the cooling systems initially provided a permeable drain layer. The drain layer is to pass the cleaning water / dirty water to a sewer inlet described above. In addition, the sewer inlet optionally has an underlying one in addition to the opening at the level of the road surface

Inlet opening.

The drain layer may be a gravel layer with underlying sealing layer.

The drain layer may also include drain pipes. The sealing layer may be formed as above. As a sealing layer and collector can also be a back and again below

Coolers occurring concrete tub can be used. With clay and foils, sealing layers can be easily and quickly produced.

Preferably, a sealing layer is provided with a slope below the drain layer, which supplies the cleaning water / dirty water to the sewer inlet described. The collection of dirty water for its return is also applicable regardless of whether a drainage system is laid in the cooler, the inlet is used for the collection of dirty water. Then, for example, at the intended lowest point under the radiator create a swamp on which so much dirty water accumulates that it can be taken with a pump. Usually, the sump is formed by a built in the underground or embedded basin. The sump is then supplied with the dirty water in the same way as the sewer inlet.

The invention is applicable to plants with horizontal cooling coil or inclined cooling coil, even on systems with vertically standing cooling coil.

In the case of the horizontal and inclined cooling registers, the cooling registers are usually raised and the fan is located under the cooling register. The cleaning is done from above. The cleaning water penetrates through the cooling register into the space below the cooling register.

The vertical cooling coils are regularly combined with other vertical cooling coils. This creates, for example, cooling systems with an angular or round outline, which enclose an interior, above which a fan is arranged. The cleaning is usually carried out from the outside in, so that the water penetrates as a cleaning agent from the outside into the interior and can be collected in the interior. The base of the interior is loaded during a cleaning process with dirty water. Therefore, there the dirty water can be collected and discharged in the same way as in a horizontally or inclined radiator. As far as is spoken of according to the invention of waste water recirculation, this includes the return of accumulating from the cleaning vertical cooler waste water.

The collection of the polluted by cleaning water can also be done by placing on the ground under the cooling coil, a reservoir / collecting container for cleaning. The sump / sump may be provided as a permanent feature. This can be, for example, tubs made of concrete and / or sheet metal and / or Be plastic. It is advantageous at the same time in the manner described above to form a sump.

Preferably, however, it is a mobile device that is removed after each cleaning to rebuild it at another cleaning site.

The arrangement on the floor makes it possible to use a lightweight construction for the sump / sump, because the sloping dirty water on the floor reaches only a negligible damming height, so that the highest static load of the container is its own weight during transport.

Even heavier, more stable sumps / sumps can be used. Then preferably a transport of the collecting container / reservoir is provided with a forklift. For this purpose, the sump / sump eg. Be provided above with eyelets for attachment of a harness. Likewise, skids may be provided on the ground which are spaced from the ground and from each other so that the sump / sump can be undercut and lifted like a pallet.

The floor can also be a roof if the cooling register is installed on a roof. Because of the necessary guidance of the cooling air, the register is located at some distance from the ground or from the roof. As a rule, this is achieved with supports on which the cooling register is raised.

There is a water drain on every roof.

Preferably, the water drain is used for the collection of the cleaning water or dirty water for the return. The water drain includes case lines, which are usually provided laterally on the housing. In particular, at the laterally arranged fall lines the installation of a switch is readily possible. By turning over the switch, the water flow occurring in the case of cleaning can be fed in the down pipe to a water return. After cleaning, the switch can be transferred again to supply rainwater to the sewage system.

The supports also make it possible to arrange the sump / sump at some distance from the ground or at a distance from the roof under the radiator that facilitates the collection of cleaning water, but makes additional demands on the stability of the collection / collecting basin and the handling of the collection .. The assembly of the collection / collecting tank can be done with a stage or with a scaffold. There are also self-supporting collecting tanks / reservoirs into consideration, which can be mounted without aids to the supports. Optionally, a stage on the fan of each cooling system for the sump / sump or for a guide is used. The stage is designed stably because it usually carries the fan and its motor. As a result, this stage must not only carry the static load from the fan and its drive, but also the dynamic load from their operation.

When cleaning the cooling registers is the fan, so that the dynamic load is eliminated and the stage can be used in the amount of dropping dynamic load for a sump / sump or for the guide.

Also advantageous are guide devices with which emerging from the cooling registers

Water is directed into the sump / sump. The guide devices can be a web, mat, textile or film or also sheets.

The guide can point vertically downwards.

The guide can also be inclined to the horizontal. The inclined course can be used to make the dirty water smaller in size

Supply collecting container / collecting container. Due to the inclined arrangement of

Guide is the distance from the edges of the rainwater trickled

Area to the collecting tank / reservoir bridged. The inclined arrangement can be achieved by clamping the guide, which together with the

Collecting tank / collecting tank forms a collector.

Chains, ropes, eyelets, hooks are suitable for restraining.

The inclination can also be achieved with profiles with which the guide is underpinned.

The baffles may simply be suspended from the cooling register, for example at the rear end of the cooling register in the direction of the passing water jets. Advantageous are also guiding devices on the sides of the cooling register. In horizontal or inclined cooling register can also at the front end of the cooling register a Guide be expedient. This can be done on these systems in every direction a shield against leaking water jets.

As stated above, the guide can also be held on the stage, which carries the fan and its gear.

For the suspension of the guide, the frame of the cooling register and / or the stage under the fan are suitable. For this purpose hooks and eyes can be used. Preferably then there are the hooks on the frame and the eyelets on the guide. It may also be provided an indirect attachment, for example by a profile is mounted on the frame and the suspension of the guide on the profile takes place. Then, the attachment of hooks on the guide can offer to hook the guide to the profile.

The profile can be mounted permanently.

It can also be a temporary attachment. For this purpose, a cable is optionally provided, with which the profile together with the guide can be pulled up. The cable facilitates the assembly, because the attachment of the guide to the profile can be done on the ground and ladders and other auxiliary equipment for installation in height of the frame are unnecessary.

The cable has the further advantage that the guide can be brought to any other desired height under the cooling coil. This is of considerable practical importance because the cooling registers in different systems usually have different heights. Within certain limits, then a guide, whose length or height is suitable for a lower cooling coil exactly, can also be used for cooling registers of greater height. It still remains after pulling the guide between the top of the guide and the frame of the cooling register a distance that does not appreciably affect the collection of water within certain limits.

The cable can be locked at any height.

The profile described above can also be attached without cable at any height under the frame. This can be done on the supports. There, the profile can be screwed or clamped or hooked or pinned or attached in any other way. Instead of the cable can also be provided a chain hoist or a belt train. The cable can be permanently arranged on the cooling coil or be reacted with the guide and the sump / sump when the cleaning device is implemented.

The guide can be in one piece or in several parts. With multi-parting, it is advantageous if the different parts overlap. Sufficient overlap prevents the cleaning jets from penetrating in the abutting area between the parts. Optionally, parts are provided at the corners of the cooling coil, which are angular in cross-section, so that an overlap is possible in the area. The overlap has the further advantage of very easy adaptation to different register dimensions. That is, according to the invention, the overlap is reduced with wider cooling registers and increased with narrower cooling registers to accommodate the register width. The overlapping parts of the guide are preferably formed by webs or mats or sheets or plates so that several webs or mats or foils overlap. Even with tracks, mats and foils or plates can form corners. The corners arise either due to the flexibility of the webs, mats and films independently by applying to the corners of the cooling coil. Optionally, the corners also arise in that the webs, mats or foils are provided around the corners or in the corners with a fold or are guided with a corresponding curvature. Optionally, corner profiles are provided. This is especially true for plates

Very advantageous for adaptation to the respective dimensions of the cooling register is a curtain as a guide. The curtain can easily be pushed together to a small extent and just as easily pulled out to a great extent. The curtain rod or curtain rail can be arranged permanently on the respective cooling register. After sliding the curtain onto a bar or rail, the curtain can be pushed or pulled apart or pushed together at any point on the bar or rail. To implement the cleaning device and the collecting device, the curtain is removed again from the permanently provided rod or rail and transported to the next cooling register or cooling register field. Alternatively, the curtain rod or curtain rail can also be removable, so that the curtain can be removed together with the rod or rail.

Optionally comes a telescoping rod or telescopic rail for the curtain are used. The telescoping rods preferably consist of two tubes, of which the one tube has an inner diameter as an inner tube, which is smaller than the inner diameter of the other tube as an outer tube by a movement play. Optionally, each rod has an angular shape, wherein the one leg is formed by an inner tube and the other leg by an outer tube. This results, for example, U-shaped rods or rails that are telescopic. Preferably, the transition in the corners or at the corners of an inner tube to the outer tube is sliding and designed with a radius so that the curtain is readily displaced there. The same applies to the transition in Teleskopierbereich of inner tube to the outer tube. The sliding transition is achieved by a chamfer of the outer tube to the inner tube out.

If two U-shaped bars or rails are put together, so creates a telescopically rectangular frame. By Eintelesopieren or Auseleskopieren the frame is adapted to the respective dimensions of the cooling register. In this case, the curtain can remain on the rods or rails, so that there is a significant labor savings.

Instead of U-shaped bars and rails also differently shaped rods and rails can be used. For example, if there is a cooling system with a hexagonal, equilateral base. While the angles on the above-described U-shaped parts describe a 90-degree angle, arise with hexagonal, equilateral surface legs with larger angles. These parts can be joined together to form a telescopic, then hexagonal frame.

At the edges or sides of the surrounding the cooling coil frame can be used for the suspension. The supports for the cooling registers usually underline the frame of the cooling register. The frame encloses the cooling tubes. It is advantageous if the guide can be mounted on the cooling tube side of the frame, so that the guide are arranged in front of the supports But it is also possible attachment outside the area enclosed by the columns, when the guide is guided around the supports or if a loss of leakage is accepted at the supports.

Conveniently, flexible guide means made of rubber or plastic of some weight, which can also absorb some energy of the impinging water jets, so that the water jets flow without substantial rebound effects at the guide devices down into the sump / sump. Optionally, the flexible sheet, mat or foil has the form of a curtain.

A curtain is characterized by its slidable arrangement on a pole or a slidable arrangement in a curtain rail. The curtain takes depending on the dimension of the rod and dimension of the curtain a corrugated shape.

The flexibility of the mats, textiles, sheets and films can also be chosen so that they can be reduced in cross section at the lower end. This can be done for example by means of a ring, a rope or a chain or the like. The webs, mats and films are preferably bound together by these means at the lower end, so that the water is directed or dripped directly into a small collecting tank / reservoir.

With an appropriate length of the webs, mats and films, this can also be achieved by guiding the webs, mats and films into the sump / sump. The webs, mats or foils or plates then form with the container / basin a collector / collector.

Optionally, these are also multilayer webs, mats or films or plates, which are exposed to air between the layers. The air is supplied through a valve with which the air can be trapped in the cavity

The sump / sump is optionally formed by an open aluminum tub or is designed as a closed container. In the weight-saving design, the container can be carried by two people. The sump / sump can also be made of other material with low specific Weight exist. Optionally, a mountable scaffold, which is covered with a film, can be used and so form a sump / Sammelbeckenb.

An inflatable pool of water known from swimming pools / paddling pools may also be used as a reservoir. Inflatable containers are made of foils that can be folded up or rolled up in non-inflated (vented, air can escape). By inflating these containers develop a considerable stability. In this case, round container shapes are particularly favorable. The walls are inflated regularly, not the bottom of the pool. The advantage of such basins is the unbeatable price, because these basins are manufactured and sold in large numbers for a different purpose. This includes the inflation devices and the valve technology.

However, the container bottom is regularly quite sensitive. Because of the low cost of the inflatable swimming pool / paddling pool, this is not a big loss and the one pool can easily be replaced by a new pool. Nevertheless, the replacement of a damaged pool involves a considerable amount of work. The invention has recognized that the pelvic floor is endangered by the industrial surfaces below a radiator. The industrial areas have uncontrolled, partly contaminated surfaces on which the soil is endangered despite the minimal water load. The danger is eliminated by a base. Suitable documents may be plates, textiles, sheets and mats. With appropriate thickness and strength, textiles, sheets and mats exclude damage to the floor under normal load. A special assurance is based on plates that either support the pool in one piece or support the pool in several parts but are connected to each other, preferably firmly connected to each other.

The inflatable basins are preferably provided in connection with a guiding device which directs or provides the dirty water in the basin when its size at least largely or even completely covers the area irrigated with dirty water.

The pump can be placed on the bottom of the pool. It is advantageous if the pump stands on a plate that prevents the bottom film of the container from being drawn into the pump. As far as advantageous at the same time a spacer to the plate to ensure a desired inlet clearance below the pump. Advantageously, the flexible bottom of the basin also allows a bulge of the soil, which can be used as a pump sump. It is advantageous to provide the plate on which the pump is inside the basin with a corresponding curvature. At the same time it may be advantageous to support the bulge of the pelvic floor outside the basin with equally curved plates.

Likewise, inflatable reservoirs / reservoirs can be used. The inflatable pelvis and container are preferably wholly or partly of one

Textile with a waterproof coating on the inside. The textile is under

Aufffaltung hung in a rod or frame and can then be filled with dirty water. In this case, preferably as in the inflatable container or basin a

Combination provided with a guide.

In contrast to the use of known swimming pools and paddling pool as

Collecting container / reservoir omitted for the pure unfoldable basins and containers

Inflation.

Independent of this, combinations of inflatable with inflatable can also be used

Container parts or pelvic parts occur.

The inflatable pelvis and container or unfoldable parts may be wholly or partly made

Consist of plates that can give the pool walls / container walls any desired stability. It is favorable for the folding when the foldable parts are connected by joints.

Optionally, foldable basins and containers can also be supported by mobile walls that are assembled on the container from parts.

The container / basin described above can be designed so that the resulting

Amounts of water can be readily absorbed, both at large

Diameter and low height as well as small diameter and high altitude. The

Design alone is a matter of the strength of the walls / floor. With regard to the quantities of water which accumulate in the containers / basins, taking account of simultaneous water recycling, the resulting strains with known textiles and sheets can be readily controlled. Suitable fabrics are made of polyester, for example. Among others, such fabrics are commercially available under the trademark Trevira. The inflatable pelvis and container can be provided with a shaped bottom and arranged in their frame or frame so that the desired bottom shape is formed.

As a suitable bottom shape, for example, a funnel shape is to be considered, if a

Water outlet is provided on the ground.

A suitable bottom shape may also be any bottom bulge, which is suitable as a pump sump in which a pump is placed or hung from above into the sump.

Foldable containers have the advantage of quick assembly and disassembly.

Another advantage of the foldable containers and their surrounding frame or frame is their pallet handling. The containers can be built into the frame on a pallet and easily moved with the pallet of a forklift.

The collection basin / collecting container is changed over to a cooling register after the end of the cleaning to the next cooling register. If the cooling registers are very large, a subdivision of the cooling register into fields preferably takes place and the collecting containers / collecting tanks are moved after the end of the cleaning on one field to the next field. Likewise, the above-explained guide devices are implemented.

For the pool implementation / container implementation is the above-described movable training and / or handled with a forklift training as well as the lightweight design of advantage.

Any cleaning of dirty water outside the collecting container / collecting basin is preferably carried out with filters and / or cleaning chambers designed as settling tanks. The filters can be arranged even without the interposition of a cleaning chamber alone in the line from the collector to the nozzles to which the water is to be recycled according to the invention again. In addition, at least one cleaning chamber is preferably used, the filter being upstream or downstream of the cleaning chamber or arranged in the cleaning chamber.

Optionally, several filters are used in parallel, which can be individually switched on and off, so that each filter can be switched off after pollution for cleaning with simultaneous connection of another filter. So that the considerable amount of dirt can be taken into account. The loading of the Filters and Reinigungsbedürftigkeit shows up at the flow resistance. When using a pump, the flow resistance forms as an increased pressure when the same amount per unit time is required, so that the cleaning need can be measured at the elevated pressure. Alternatively, the same pressure can be used and the need for cleaning can be measured at the reduced flow rate. Alternatively, pressure and quantity are measured together and a comparison with data with a clean filter to determine the need for cleaning takes place.

The filter cleaning can be done manually by removing the filters and, if necessary, by replacing the filter. The cleaning can also be done automatically. It is also spoken by self-cleaning filters. The self-cleaning filters also include filters that are flushed by momentarily reversing the flow of water. It is advantageous if the supply line to the filter is closed in front of the filter and the rinse water, for example, discharged laterally from the system.

Optionally, the filter is also combined with a sieve or grate or grid or acting as a sieve textile with a correspondingly large mesh size at the collecting tank / reservoir.

The sieve filters and grate filters can at the same time be provided with filter baskets that are suitable for

Remove filter cleaning from the system.

It is favorable in this case a change of a full basket against an empty basket, so that cleaning operation must be interrupted at most slightly for cleaning. Advantageously, the interruption of the cleaning process during the implementation of the cleaning device for the filter cleaning can be used. The replaced filter baskets can drip until the next change process, so that the disposal of the filtered contaminants easier due to the lower water content. Optionally, the drainage is increased by a filter press, These are the resulting in the filter cleaning contaminants are compressed. There remains an easily handled filter cake in the size specified by the filter press. With the filter press dripping is unnecessary. The filter press can be operated by hand or have a mechanical drive. Both for the manual operation as well as for the machine operation of the filter press a toggle mechanism is an advantage. When mechanical drive, lifting motors are suitable. Depending on the environment of the cooling system, explosion protection may be necessary.

The textile used as a sieve can be a woven fabric, a knitted fabric, a knitted fabric or a fleece. From the textiles can be made up bags that absorb the dirt to be filtered out like a basket and with the dirt from the filter removable or exchangeable and emptied.

Optionally, also films or sheets and mats as filters into consideration. The mats may have as a fabric a filter characteristic determined by their mesh size. The films and webs are formed by shaped openings to a filter material. Because of the flake nature of the debris obtained when cleaning coolers, the openings in the films and webs can also be of considerable dimensions. The openings can be created by needling or punching. In the case of plastic films and plastic sheets, openings can also be introduced thermally into the films and webs. As tools suitable for this purpose heated nails or bolts. Also from the films, webs and mats bags can be made as in the textiles.

The applicable filters also include bulk filters. In this case, particles in the form of a bed are used. Depending on the size of the particles and the composition of the bed, more or less large or more or less small water passage openings result. Preferred bulk filters are gravel filters.

As far as gravel beds are already under the coolers, these are preferably used as a bulk filter.

The use of these existing beds can be done, for example, in such a way that drainage pipes are laid in the bed, leading to a collector or reservoir / reservoir. Known drainage pipes are made of plastic and have at the periphery of various openings through which the water can enter the tubes and there the collection container / reservoir can be supplied. The laying of the pipes is done, for example, by clearing the gravel with a front loader, to lay the pipes on the ground and then distribute the gravel over the pipes with the front loader. For driving accordingly stable tubes are selected. The front loader includes a very effective and widely available device. Regardless, of course, other devices for handling the gravel are available. Even a movement of the gravel by hand with a shovel is possible. Instead of gravel, other foundations are also possible, for example broken rocks.

Depending on the importance of the water return for the plant operator, more or less water can be recycled. With greater importance of the water for the operator, a seal can be laid under the gravel. In some systems, there is already a concrete layer or an asphalt layer under the coolers. Then, this layer can be provided with a corresponding slope and used as a seal and then the bed, in particular a layer of gravel, are applied. The seal causes without the drainage pipes with the bed drainage in the direction of a collector or reservoir / reservoir. With the drainage pipes drainage is improved.

The same system (with or without drainage pipes) can also be applied to other coolers by either drawing in the concrete layer or the asphalt layer, or by retracting a layer of clay or just a sealing foil as a seal. In this case, the sealing film does not have to be welded if an overlapping laying of geomembranes is sufficient. The overlapping laying with an overlap range of 10cm to 50cm, preferably 20 to 40cm, at each edge is sufficient if minor leaks are harmless.

In practice, the cleaning service for the coolers also takes care of the removal of the dirt removed by the coolers.

If the dirty water immediately enters a collecting tank / reservoir, the rinsed dirt is also found exclusively in the collecting tank / reservoir. Provided that the dirty water first on a drainage slope (for example, formed with a top-applied film or a mere asphalt layer or mere concrete layer or bare Plaster layer) and is supplied from there to a collector, the dirt is largely flushed into the collector. The dirt remaining on the slope can easily be swept up and disposed of after cleaning.

It seems somewhat more difficult when the dirty water first encounters a bed of material, for example a gravel bed. Then the remaining dirt lies on the gravel layer. Surprisingly, it turns out that this dirt can be rinsed off the gravel bed well. Preferably, the dirt is driven into a corner and taken up there for disposal.

If, depending on the training of the collector (for example, in the above written use of the bed under the radiator) there is no natural clutter to the cleaning chamber, this is remedied with a pump. Preferably, the collector then directs the dirty water to a so-called swamp, from which the dirty water is pumped out. The sump is formed in the simplest case by a depression in the surface.

Optionally, collecting tanks / collecting tanks for the dirty water are provided, in which at the same time a cleaning takes place. This is how the collection container becomes a cleaning chamber.

Otherwise or additionally, downstream cleaning chambers are provided. Optionally, each cleaning chamber is divided into individual chambers or several cleaning chambers are connected in parallel in the flow direction and / or connected in series and is provided at the transition from one chamber to the next filter. In the simplest case, filtering takes place by means of overflow. Also favorable is a combination of overflow and grid or sieve. The combination results from chamber walls which are provided with a grid or sieve above the overflow edge. This prevents the dirt from being pushed over the overflow edge. Rather, a self-cleaning effect occurs when floating dirt, by the inflowing water is forced to swim through the already collected dirt through. It also small particles hang, which would otherwise be washed out of the chamber.

Instead of a cleaning chamber with division into different individual chambers and the use of separate cleaning chambers can be beneficial. This is especially true for a modular structure of the chambers. Depending on the degree of soiling and the desired degree of cleaning, different identical and / or different chambers can be connected in series. The connection can be made by tubing and / or piping, In this case, the inlet is preferably arranged higher than the drain in order to use the chamber at the same time as settling tank. For a modular use of the Einigungskammern the cleaning chambers are preferably provided with several different levels of shrinkage and / or with several different high flows, so that it can be ensured within limits that the flow of an upstream cleaning chamber always the same or higher than the inlet of the downstream cleaning chamber is. The same applies to the situation in / on a cleaning chamber. The inlet should be at least as high or higher than the drain of the cleaning chamber. In addition, with floatable dirt, it can be advantageous to always keep the water level above the drain. This happens with controlled water drainage. To control a slide, if possible a controlled depending on the water level slide. The same effect has a drain pump.

On the way, the floatable dirt contained in the dirty water can float in the cleaning chamber, without disturbing the water drain or drain with the draining water.

The unneeded inlets and drains are closed with lids / plugs.

It is advantageous if the inlets and drains have a pipe connection or hose connection. Particularly advantageous are quick fasteners, as they are for fire hoses

Find application. Then the connection can be made quickly and reliably.

In addition, such connections open up a simple way of interposing

Pump.

With intermediate pumps, the cleaning chambers are also independent of the height of the inlets and processes in series operation operable.

The cleaning chambers may have the same construction as the sump / sump, so that mutual use is possible. The cleaning chambers can also be designed to be mobile or fixedly arranged in the collecting basin / collecting container.

For the cleaning chambers, despite the considerable water throughput of the cleaning devices of up to 15 cubic meters per hour according to the invention, only a receiving volume of up to 5 cubic meters is provided. This is made possible by the return of the purified water to the cleaning nozzles of the cleaning device. Preferably, each cleaning chamber has a receiving volume of at most 4 cubic meters, more preferably up to 3 cubic meters, and most preferably up to 2 cubic meters. Cleaning chambers with a receiving volume of 0.5 to 1.5 cubic meters can also be sufficient. The smaller the cleaning chambers, the easier it is to transport the cleaning chamber in mobile form and the lower the cost of the chamber.

Favorable are mobile cleaning chambers. Such cleaning chambers also facilitate displacement of the cleaning chambers along with the displacement of the cleaning device. The carrying capacity of marketable trailers or marketable motor vehicles is so great that the cleaning chambers must not be emptied for moving.

According to the invention, separate reservoirs for purified water can also be advantageous. With the separate reservoir, the cleaning operation of the cleaning nozzles can be decoupled within certain limits of the wastewater recycling.

Favorable is a common arrangement of cleaning chamber and reservoir on a trailer or a self-propelled vehicle.

Preferably, the trailer or vehicle then also carries other parts of the cleaning device, for example its pump or a common pump for removing filtered water and the water supply to the cleaning nozzles.

Instead of the mobile cleaning chambers and / or containers are also stationary cleaning chamber and reservoir into consideration.

Optionally, stationary cleaning chambers are combined with mobile containers and vice versa mobile cleaning chambers combined with stationary storage containers. In the series connection of filters coarse separation is preferably provided in the first filter. The deposition in further downstream filters is getting finer

The purified water is preferably fed with the interposition of the reservoir in the water supply to the cleaning nozzles. The reservoir has the task to compensate for irregularities in the return of the cleaning water. Optionally, a mixture with fresh water takes place in the reservoir.

As cleaning chambers and / or reservoir are, for example, tankers or tankers, as they are common in agriculture.

It is also advantageous if the chambers and / or containers are provided with mobile partition walls, so that the intermediate walls are adjustable as needed.

Conveniently also be pulled out intermediate walls. This is especially true for

Partitions with built-in filters and / or pumps.

Of advantage are also cleaning and maintenance flaps on the chambers and / or

Containers.

In the drawing, several cleaning devices are shown.

Figs. 1 and 2 show in accordance with EP 1604164 Bl the side view of this cleaning device for a tilted cooling register.

In the side view of Fig. 1, the inclination of the cooling register is shown.

Fig. Ia shows the cooling register in a simplified overall view. Here are the cooling tubes

51 held in a frame 52 and guide the cooling tubes 51 from a steam supply 70 to a collector 71st

The cooling device is raised with a frame 73 and supports 74.

This results in the upper end of the cooling register very cramped conditions in the

Embodiment because of a wind wall support. As a result, that can

Square profile 2 can not be extended so far that the Reinigungsvoπϊchtung with their Head reaches the top of the cooling register. According to Fig. 1, this can be compensated by the fact that the nozzle 50 protrudes in the upper position corresponding far beyond the head of the cleaning device. Here, the nozzle is supported by a nozzle floor trolley, which runs on the profile 2.

The method beyond the head and foot is possible in the embodiment due to the portal-shaped bracket 53, with which the cleaning device is held. The portal-shaped bracket 53, together with the edge profile 2 a trolley, which is laterally movable on the cooling registers. The wagon carries all belonging to the cleaning device components, as they are already the subject of an earlier proposal. These include in the exemplary embodiment, a toothed belt drive (instead of belt drive can also chain hoist or other drawbar be provided with tape or rope), the drive and the nozzle floor carriage 50th

For moving the nozzle floor carriage 53 driving rollers are provided at the bottom of the bracket. The castors have a detent in the form of a clamp. The profile 2 is suspended in the brackets 53. The suspension is a strut 54. The edge profile 2 is arranged so that a diagonal of the cross section is vertical. On the inclined surfaces of the Kantprofiles 2 run rollers 55. The rollers are mounted on metal strips 56. The metal strips are folded at the upper end so that the mounting surfaces for the rollers are at 90 degrees to each other. The same angle, the side surfaces of the Kantprofiles 2 each between them.

At the lower ends of the metal strip bolts 57 are provided. The bolts 57 at the same time form spacers for the metal strips and also fasteners for the nozzle 50th

According to Fig. 3, a screw connection is provided for fixing the nozzle assembly 50 to the nozzle floor carriage on the construction formed by the bolt 57. The screw connection allows quick assembly and disassembly.

Fig. Ia shows how the accumulated during cleaning waste water is collected below the cooling register. In this case, a collecting container 75 made of aluminum is provided. In addition, the space below the cooling register is clothed with a curtain 76 laterally and rearwardly. The curtain 76 leads into the collecting container 75. In the exemplary embodiment, the curtain extends to the frame 73. The gable surface of the Frame 73 to the frame 52 of the cooling tubes 51 is free. In other embodiments, the gable surface is also covered. The curtain forms a guide by directing the accumulated water into the sump.

Fig. Ib shows a curtain 80 as a guide, which is suspended on a telescopic curtain rod with eyelets. The curtain rod has a U-shape in the embodiment and is composed of tubes 81 and 82 together. The tube 81 (outer tube) has an inner diameter which is greater than the outer diameter of the tube 82 (inner tube) by a necessary play of movement. As a game of motion is in the embodiment, a measure of 0.2 mm, provided in other embodiments, a measure of 0, 1 to 0.5 mm.

By pulling apart (Austeleskopieren) or telescoping (Einteleskopieren) of the tubes 81 and 82 takes place an adaptation to the respective cooling coil.

Fig. Ic shows a flow chart for the collection of the dirty water and its treatment. In this case, cleaning water emerges from a nozzle assembly 88, as described in FIGS. 1 to 3, penetrates a multilayer cooling register 87, as described in FIGS. 1 to 3, by a curtain 86 as a guide, as shown in Fig. Ia and Ib described in a collection container 85 passed. From there, the dirt-laden water (dirty water) is fed to a filter / cleaning chamber in which the dirty water is cleaned. Thereafter, the water is fed to a reservoir 92, from which it is returned to the nozzle 88 as cleaning water.

The removal of the dirty water via a pump 89 and a line 90. Another pump 94 is connected downstream of the filter chamber, a third pump 93 to the reservoir 92. The various pumps facilitate the operation of the water recycling system. Thus, regardless of the filter chamber, water can be withdrawn from the reservoir and fed to the cleaning device at the desired pressure. Depending on requirements, this pump, which is connected downstream of the storage container, results in a completely different requirement profile than for the pump connected downstream of the cleaning chamber.

In other embodiments, a fresh water line is connected to the reservoir to achieve a mixture of fresh water and recycled water. This is not only intended to compensate for shortfalls caused by spray losses and / or evaporation and / or leakage of the recirculation system. This should also stabilize the pH of the water. Fresh water amounts of 10% to 70%, preferably 30 to 60%, even more preferably 40 to 50% are provided. Insofar as more recycled water is required than is required for a stabilization of the pH of the water, the excess amount of water is supplied to other purposes, or disposed of. In other embodiments, the water recirculation system is operated with fewer pumps. Then a piping / hose system and a slider system are provided, with which the pump can act individually on the filter / cleaning chamber or on the reservoir and / or can act together on the filter / cleaning chamber and the reservoir.

In the exemplary embodiment, the two provided pumps are equipped with a water-deficiency switch that shuts off the pumps when there is insufficient water and there is a risk of dry running for the pumps. When running dry, the pumps lose their seal and can even seize the pumps.

In the exemplary embodiment, the power of the reservoir downstream of the pump 170 to 220 liters per minute at a pressure of 5 to 8 bar. With power, the pump can operate in the embodiment at the same time the cleaning device, so that no further pump is required there.

4 shows a hexagonal (hexagonal) Luko 10.

The Luko 10 has a support structure inside with supports and trusses.

There is a support at each corner. Between the corners are the supports through the

Connected trusses. On the columns and trusses cooling register 1 1 are attached. The

Cooling register 11 have vertically extending cooling tubes to which the superheated steam is supplied from below. At the top, the steam, unless it is condensed, enters a collector.

To the cooling coil 10 around a panel 12 is provided.

At the top, the Luko 10 has a fan 13.

Depending on the direction of rotation of the fan 13, the air is sucked through the cooling register 11 in the Lukomitte and ejected upwards or it is sucked in the air from above and through the

Cooling register 11 pressed outward. Fig. 5 shows three interconnected Lukos 10 ', 10 "and 10'". The three linked Lukos form a common Luko with two long sides and two narrow sides. On the narrow sides of the common Luko is identical to a single Luko 10.

Of the long sides one in Fig. 6 is shown in plan view.

The Luko 10 'has thereby vertically extending supports 20. The vertical supports are connected to each other at the top and bottom by trusses 21. Each two adjacent columns 20 form with the associated trusses 21 a field in which a cooling register 25 is attached to the columns and trusses.

The illustrated longitudinal side is zigzag-shaped.

To the opposite longitudinal side there is a connection, which are formed by trusses 22 which are identical to the trusses 21. The traverses 22 form with the supports 20 a common field of Lukos 10 'and 10 ", which is free of cooling coil.

On the outside of the cooling registers 25 of the illustrated side wall run driving profiles 30 for cleaning devices 31. The driving profiles 30 are circumferential

Fig. 7 shows a single view of the cleaning device.

In the view it can be seen that the cleaning device is held in two driving profiles 30.

The one driving profile 30 is attached to the common steam supply 35 for the cooling register 25.

The other driving profile 30 is attached to the common collector 36 of the cooling coil 25.

Above the collector 36 is the panel 37 for the fan housing. In addition, a working platform 38 is provided.

The Reinigungsvoπϊchtung 31 has a grid frame 40 which extends from the foot of the radiator up to the height of the platform 38. The lattice framework forms two portal-shaped parts 41 and 42, the struts of which are provided on the cooling register side with rollers and engage with the rollers in the driving profiles 30.

In addition, the grid structure carries a driving profile 45, which is identical to the profile 2 of FIG. 1 as a square profile and is also arranged edgewise. The driving profile 45 is in the same way to the grid structure 40 held as the driving profile 2 to the portal-shaped brackets 53 in Fig. 1 and 2. In contrast to FIGS. 1 and 2, the driving profile 45 is not only in the portals 42 and 42, but also at two held further struts 46 and 47. This gives the Fahrprofϊl 45 extra stability.

On the driving profile 45, a nozzle floor carriage 60 is arranged to be movable like the nozzle floor carriage in Fig. 2. That is, the nozzle floor carriage 60 engages the driving profile 45 with multiple roles. The rollers rest against at least three profile surfaces of the driving profile 45. At least one of the profile surfaces has at least two rollers spaced apart from one another. On the way arises in the longitudinal direction of the driving profile 45 and in the circumferential direction of the driving profile 45 a non-tilting arrangement of the nozzle floor carriage 60. The nozzle floor carriage 60 is shown in Fig. 7 in the lowest position. The nozzle carries in the embodiment six nozzles from which emerge correspondingly many cleaning jets. A cleaning jet 62 is shown. The upper position of the nozzle floor carriage is designated 60 '.

The nozzle floor cart 60 is provided with a toothed belt 63.

The drive 64 for the belt drive is arranged on a console at the upper end of the drive profile 45. There, the drive 64 is accessible from the working platform.

The supply of cleaning fluid is from above. There, a pipe 65 is provided, which merges to the lower end of the cleaning device in a flexible hose line.

The cleaning device is moved after performing cleaning by hand. The movement by hand is possible because the cleaning device is designed in lightweight construction and is easy due to the existing roller guide. On the driving profiles 30, the cleaning device is moved to the next cooling register after cleaning a cooling register. Due to the corresponding curve of the driving profiles 30, the cleaning device can also be moved at the corners of the side walls. This is shown in Fig. 6 with positions 31 'and 31 ".

In the interior of the illustrated hexagonal radiator, the same collection of cleaning water takes place as in the radiator according to Figures 1 to 3 and is then the same Preparation of the dirty water provided. This includes the use of a curtain.

In a radiator with horizontally extending cooling tubes applies with regard to the collection of dirty water and its cleaning accordingly.

Such coolers lack the structure shown in Fig. Ia. Instead, the cooling tubes are disposed within the opening of the frame 73.

In further exemplary embodiments, the collecting container has a grid or grid or fabric used for coarse separation of the dirt. Tissues are also referred to as similar textiles as knits and knits.

Fig. 8 shows an area below a cooling system. The area consists partly of a road with an asphalt surface 81. The remaining part 80 of the area is provided with a slope.

On the surface part 80, film webs 87 and 88 are laid transversely to the inclination. The two tracks 87 and 88 overlap at the edges. The overlap area is designated 89. To the street belongs a sewer with a channel 82 and a sewer inlet 83. To the sewer inlet 83 leads a gutter at the edge of the road. The gutter 84 directs surface surface water accumulating on the road into the sewer inlet 83. In the case of cleaning the cooling system, cleaning water or waste water falls on the road as well as on the inclined surface covered with the tracks 87 and 88. Even the latter surface water is fed to the sewer inlet 83.

In the sewer inlet 83 is instead of a conventional dirt trap container, a container 90 with sufficient volume for water absorption and the inclusion of a submersible pump 85. The submersible pump 85 pumps the penetrating cleaning water into a hose 86, which supplies the water to a treatment. From the treatment, the recirculated water enters either directly into the water inlet for the cleaning nozzles or there is a mixture of fresh water with hot water instead. In the embodiment, only one sewer inlet is shown, from which the water obtained by cleaning is pumped out. In addition to the sewer inlet and all other sewer drains in which obtained during the cleaning of a section of the cooling system from the cleaning water, equipped in the same manner as the sewer inlet shown. In further embodiments, individual sewer enemas are closed because they lie with deeper drains on the same gutter and the capacity of the remaining, equipped with a pump sewer drains for pumping out the accumulated water is sufficient. For closing drains sewer closed lids are used in the embodiments instead of the usual grates. An absolute sealing of the lid is not required, because in the embodiments anyway admixture of fresh water is provided, with which the leaks are compensated.

When converting the cleaning device to another section of the cooling system, the cleaning water falls under this section. Accordingly, the film cover is picked up and re-laid under this section. Accordingly, the sewage inlets are also re-equipped with conventional collection and the sewage inlets are converted in the form shown in Fig. 8, in which obtained from the new area by cleaning water.

In another embodiment, a permanent asphalt cover or a paving concrete blocks or other permanent cover is provided instead of the mobile film cover, from which the dirty water is fed in accordance with the invention a sewer inlet, where the dirty water collected and fed to a cleaning and then fed to the cleaning nozzles becomes.

In still other embodiments, a concrete tub is provided. The concrete tubs are manufactured with appropriate drainage area and a water outlet.

In still other embodiments, a gravel bed is provided under the radiators instead of the mobile film cover and are in the gravel packing drainage pipes have been laid, which collect the penetrating waste water and a pump sump, from which the waste water is pumped out in the form described above and recycled.

Fig. 9 shows another sewer inlet 95 with a funnel-shaped closed insert 96. In the application is a submersible pump 97 for the suction accumulating wastewater. The resulting waste water is subject to a first coarse separation of dirt. This is done with two screen halves 99, which are placed in the insert 96 and thereby enclose the hose 98 of the submersible pump 97 between them. The usable screen halves are held due to the funnel shape of the insert 96. In other embodiments, the strainer 99 may be provided with cams, hooks, screws, pins, and other fasteners. Optionally, the sieve is very coarse and the vote of the sieve on the accumulating dirt by selecting a gravel or other bed on the sieve 99. Advantageously, the operator can easily control the result of the coarse separation and over-intensive deposition of some parts of the bed against coarse grain replace, so that less fines are deposited with. If the deposition is too small, it is sufficient to sprinkle small-scale gravel over the bedrock, so that more intensive separation occurs.

In other embodiments, a filter sponge or filter mat or a filter fabric for coarse deposition is placed on the screen 99.

Fig. 11 shows a preferred water treatment. Two identical aluminum containers 100 are placed next to each other on pallets 125. Both containers have the same inlet 101 and 102 for water at different heights and the same processes 103 and 105 and 110. In addition, a filter 115 is provided in each case before the processes 103 and 105. The filter 115 consists of a filter mat and an associated holder of the filter mat.

In the left-hand container 100, a cleaning of the dirty water takes place. In that case, the container 100 forms a cleaning chamber. This container is the Dirty water supplied through the highest inlet 101. The underlying inlet 102 is closed by a cover 105.

Of the processes, the sequence 103 is open, the other processes 103 and 104 are with a

Cover 105 closed. The water level, which has been adjusted by, is shown in dashed lines. The water level has in the illustrated operating situation a distance 1 17 to

Middle of the inlet 101.

In the illustrated operating situation, dirt 118 has settled on the bottom of the container 100. Other floatable dirt 116 has settled on the filter 115.

The right in the view of Figure 11 container is used as a reservoir for purified water. The purified water enters through the lower inlet 102. The other inlet is closed with a lid 105. The water contained in the reservoir is withdrawn through the lowermost spout 110 by means of a pump 111 as needed and fed to the cleaning nozzles. Of the other spouts the outlet 103 is closed by a cover 105. The outlet 104 is used as an inlet for fresh water 126. In this case, the water level 127 is held in the reservoir in the embodiment by controlling the water inlet in the illustrated height to ensure adequate supply of the cleaning nozzles with water. The water level is monitored by unillustrated swimmers, who make contact if the water level drops excessively or rises excessively.

Fig. 12 shows a same container 100 as the container 100 in Fig. 11 in the exclusive use for cleaning the dirty water of floating dirt. Here, the feed situation is the same as in Fig. 11, but the drain situation is different because the drain 104 is closed with a lid 105 and the purified water is withdrawn from the drain 110 via a pump 111 and fed to the reservoir.

The buoyant soil has collected in a floating layer 121. It is not shown for reasons of drawing that the floating layer 121 is partially sunk in the water surface 120.

FIG. 13 shows a container 130 other than the containers 100. The container 130 is made of a polyester textile, the inside waterproof coated with unfoamed flexible plastic. The container 130 has a funnel-shaped lower end 134 with an outlet 135. At the top, the container is open and an inlet 133 is provided. The container 130 is held in a dot-dashed frame 132 which is mounted on a pallet 131. The container 130 is folded transported and unfolded in place.

Claims

claims

1. Cleaning device for cooling surfaces, in particular Lukos, water coolers and chemical systems, comprising a) on the cooling registers in the longitudinal direction of the cooling tubes (51) movably arranged nozzle floor trolley, which carries a nozzle with a plurality of cleaning nozzles, b) a nozzle (50) carrying wagons , which is dimensioned so that it can overlap a plurality of cooling pipe or even a plurality of cooling registers, wherein c) the nozzle in the longitudinal direction of the cooling tubes is movable and wherein the wagon transversely to the longitudinal direction of the cooling tubes is displaceable, characterized in that d) the dirty water of the Cleansing collected, cleaned and at least partially fed back to the cleaning nozzles.

2. Apparatus according to claim 1, characterized in that a) the area under the cooling system forms a collector by being completely or partially sealed and the wastewater resulting from the cleaning of all or part of a sewer or a sump or a chamber or a basin or a container for treatment and recycling can be fed, or b) is under the cooler as a collector a bed with a drainage, which is the water passing through the bed completely or partially a sewer or a sump or a chamber or a basin or a Containers for processing and recycling can be fed, or c) is under the cooler as a collector a bed under which a seal is provided so that the water passing through the bed wholly or partially a sewer or a sump or a chamber or a Basin or a container to Treatment and recycling can be fed, or d) in the case of a roof mounted cooling system, the water flows from the cleaning in the roof drainage and the water flow of the roof drainage, preferably the water flow in the downpipes can be diverted into the water treatment and recycling; or e) a collector in the form of a container or basin or chamber is arranged below the cooling register, the water resulting from the purification preferably being able to be conducted into the collector with a guide device.

3. Apparatus according to claim 2, characterized in that the chambers or basins or containers is arranged free of soil.

4. Apparatus according to claim 2 or 3, characterized by a single-stage or multi-stage cleaning of the resulting water cleaning chamber and / or a reservoir for purified water.

5. Device according to one of claims 1 to 4, characterized by a cleaning of the dirty water in the collector and / or in a collector downstream cleaning.

6. Apparatus according to claim 5, characterized by a filter installation in the collector

7. Apparatus according to claim 6, characterized by a filter installation in the sewer inlet.

8. Apparatus according to claim 7, characterized by a container with a sieve insert in the sewer inlet.

9. Apparatus according to claim 8, characterized in that the sieve insert is provided with a filter mat and / or a bed as a filter, in particular with a gravel bed as a filter.

10. Apparatus according to claim 9, characterized in that the bed is changeable.

11. Device according to one of claims 2 to 10, characterized in that the collector and / or cleaning is provided with a pump.

12. The device according to claim 1 1, characterized by a submersible pump in the sewer inlet.

13. Device according to one of claims 2 to 12, characterized by a cleaning chamber with enclosed multi-stage cleaning or more parallel and / or cascaded separate cleaning chambers and / or reservoir for purified water.

14. The apparatus of claim 13, characterized by a multiple filtering of the resulting water in a chamber or a container, wherein a Absetzfilterung and / or a passage filtering and / or filtering of floatable dirt is provided.

15. The apparatus according to claim 14, characterized by containers or chambers in modular design.

16. The apparatus according to claim 15, characterized by multiple connections for the inlet and / or for the outlet of water to the containers or chambers, wherein the unused ports are closable and apparently again.

17. The apparatus according to claim 16, characterized by cover for opening and closing the connections.

18. Device according to one of claims 2 to 17, characterized by a) inflatable container or chambers b) foldable containers or chambers c) masonry or concrete chambers d) containers or chambers made of metal, preferably made of light metal, still more preferably made of aluminum

19. Device according to one of claims 2 to 18, characterized in that the cleaning chambers and / or the reservoir are designed to be mobile, preferably mobile and / or are displaceable with a forklift.

20. Device according to one of claims 2 to 19, characterized in that the cleaning chambers and / or the storage container have a receiving volume of up to 5 cubic meters, preferably up to 4 cubic meters, more preferably up to 3 cubic meters and most preferably up to 2 cubic meters.

21. Vorrrichtung according to one of claims 2 to 20, characterized by the use of a tanker vehicle of a vehicle can be placed on a tank for the cleaning chamber and / or the reservoir.

22. Device according to one of claims 2 to 21, characterized by a common pump for removing water from the reservoir and for charging the nozzles with cleaning water.

23. Device according to one of claims 2 to 22, characterized in that a) the collector is wholly or partly designed as a filter and / or b) the collector at least one filter, preferably a self-cleaning filter is followed and / or c) the cleaning all or part of a filter cleaning or Absetzreinigung is, where d) several filters in parallel

Arrangement or are arranged in series connection, e) preferably with filters which can be switched off individually or to several and / or f) with self-cleaning filters

24. The device according to claim 23, characterized by a sieve or grate or grid or a filter foam or a textile filter, in particular a fabric filter or filter mat, and / or a filter bed, in particular a gravel filter.

25. Device according to one of claims 2 to 24, characterized by a) a collector of films, webs or mats or plates, all or part of the Cover area under the radiator to be cleaned or b) a collector of foils, sheets or mats or plates placed under the radiator and covered with a filling c) the foils, sheets or mats or plates overlapping one another loosely on the edge or are connected together at the edge.

26. The apparatus according to claim 25, characterized in that the overlap dimension of the films, webs, mats or plates of 10 to 60cm, preferably 20 to 50cm.

27. Device according to one of claims 2 to 26, characterized by perforated films, sheets or plates, in particular with needled or stamped or melted through openings for water

28. Device according to one of claims 3 to 14, characterized by inflatable

Collector, wholly or partly consisting of flexible material, in particular consisting of several layers of films and / or webs and / or plates, wherein the layers are sealed together and the cavity between the layers via a valve with air can be acted upon and the valve is closed after blowing air.

29. Device according to one of claims 2 to 28, characterized by a mobile

Collector formed in whole or in part by a folding structure, in particular with a folding construction which has stiffeners.

30. Device according to one of claims 2 to 29, characterized by inflatable collecting container or reservoir as a collector

31. Device according to one of claims 2 to 30, characterized by a mobile

Collector with a plate that is movable with a forklift.

32. Apparatus according to claim 31, characterized by eyelets on the collecting container or

Sump for a harness and / or runners at the bottom, the Collecting tanks or reservoirs Ground clearance for underfilling with a fork of a forklift and / or give lateral support to the reservoir or basin at the fork.

33. Device according to one of claims 2 to 32, characterized by bottom-free arrangement and a self-supporting design of the collecting container or collecting basin or the use of a support structure for the collecting container or reservoir.

34.Vorrichtung according to any one of claims 2 to 33, characterized by a one-piece or multi-part Leiteinrichtung.für the herabregnende dirty water and / or a guide made of flexible material and / or a material with energy-dissipating weight.

35. Apparatus according to claim 34, characterized by using a curtain as a guide.

36.Vorrichtung according to claim 35, characterized in that an adaptation to the cooling register dimensions takes place by pushing together or Auseinanerziehen the curtain.

37. Apparatus according to claim 35 or 36, characterized by curtain rods or curtain rails on which the curtain formed as a guide is displaceable.

38.Vorrichtung according to any one of claims 35 to 37, characterized by a multi-part guide, the parts of which overlap, whereby by changing the overlap dimension can be made to adapt to the dimensions of the cooling tubes.

39. Device according to one of claims 35 to 38, characterized by corner pieces in the guide means, preferably by folded or kinked corner pieces.

40.Vorrichtung according to any one of claims 35 to 39, characterized in that the guide device is attached directly or indirectly and / or permanently or temporarily to the cooling system, in particular on the frame of the cooling register or on its supports.

41. Device according to one of claims 35 to 41, characterized by telescoping rods or Schienen.für the guide.

42. Device according to one of claims 35 to 41, characterized in that the guide device is fastened with hooks and / or eyes and / or with a rod or rail.

43. Device according to one of claims 35 to 42, characterized by telescoping and pull apart tubes, of which the inner tube has a diameter which is smaller by the degree of the necessary clearance than the inner diameter of the outer tube.

44. Apparatus according to claim 34, characterized by a clearance of 0.1 to 0.5 mm

45. Device according to one of claims 35 to 44, characterized by a U-shape, which consists of two, as inner and outer tube telescopically and pull apart angles, the legs of which an angle of 90-degree angle or a larger angle between them

46.Vorrichtung according to claim one of claims 35 to 45, characterized by two set to form a rectangle U-shapes of angles whose legs form a 90-degree angle, all angles are telescopic in the overlapping region.

47. Device according to one of claims 35 to 46, characterized by the use of angles, the legs of which include a greater angle than 90 degrees between them and can be assembled into a 5-corner or polygonal frame, wherein all angles in the overlapping area are telescopic.

48.Vorrichtung according to one of claims 35 to 47, characterized by a

Displacement of the curtain in the telescopic area and / or at the corners of the angle.

49.Vorrichtung according to claim 47 or 48, characterized by a skew as a transition in Teleskopierbereich and / or a rounded corner.

SO.Vorrichtung according to one of claims 35 to 49, characterized in that the rails or rods with a traction means, in particular a cable or chain hoist are mounted and disassembled and adjustable in height.

51.Vorrichtung according to any one of claims 35 to 50, characterized by guide means made of rubber or plastic.

52.Vorrichtung according to any one of claims 2 to 51, characterized in that the surface is created under the cooling system at least outside existing roads with a slope to an inlet opening of the sewer and then sealed.

53. Apparatus according to claim 52, characterized in that the surface is asphalted.

54.Vorrichtung according to claim 52, characterized in that the surface is covered with films or webs.

55. Apparatus according to claim 43, characterized in that the films are laid overlapping, wherein the edge of the top in the direction of inclination slide over the edge of the bottom in the direction of inclination film and / or the films with a width of at most 5 m, preferably a width not exceeding 2m, and / or foils extending transversely to the inclination of the surface with their longitudinal direction.

56.Vorrichtung according to claim 55, characterized in that among the in

Direction of inclination of the surface overlapping edges profiles are provided, wherein the overlap shows a bulge, so that the water resulting from the cleaning expires at the overlap.

57. Device according to one of claims 54 to 56, characterized in that there are provided under the overlap extending in the direction of inclination profiles.

58. Device according to one of claims 2 to 57, characterized in that the surface is placed under the cooling systems at least outside existing roads with a slope to a sewer inlet, the surface above has a drain layer which is connected to the sewer inlet.

59.Vorrichtung according to any one of claim 58, characterized by a sealing layer under the drainage layer.

60. Device according to one of claims 2 to 59, characterized by the use of pumps for conveying water in the collector and / or cleaning wherein at the same time a level control of the water level is provided.

61. Device according to one of claims 1 to 60, characterized in that the recycled water fresh water is added, wherein the fresh water content is 10 to 70%, preferably 20 to 60% and even more preferably 30 to 50%, based on the total amount of water.

62. Device according to one of claims 1 to 61, characterized in that the water return and the fresh water supply by pipe connections, hose connection, slide and pumps are dependent and independently operable.

63. Device according to one of claims 1 to 62, characterized by the use of pumps with a water deficiency switch.