CN220670256U - Cooling tower with cleaning function - Google Patents

Abstract

The utility model discloses a cooling tower with a cleaning function, which comprises a tower body, a cooling pipe, a water inlet pipe, a water outlet pipe, a circulating pipe, a spraying pipe, a first serial pipe and a second serial pipe, wherein the first serial pipe is communicated with the circulating pipe and the water inlet pipe, the first serial pipe is provided with a first serial valve, the second serial pipe is communicated with the spraying pipe and the water outlet pipe, the second serial pipe is provided with a second serial valve, the circulating pipe is provided with a circulating pipe valve, the circulating pipe is positioned between a connecting node of the first serial pipe and the circulating pipe and a water outlet of the circulating pipe, the water inlet pipe is provided with a water inlet valve, a connecting node of the first serial pipe and the circulating pipe is positioned between the water inlet valve and the water inlet of the cooling pipe, the water outlet pipe is provided with a water outlet valve, and a connecting node of the second serial pipe and the water outlet pipe is positioned between the water outlet valve and the water outlet of the cooling pipe. The cooling tower with the cleaning function has the advantages of simple structure, cost saving and high cleaning efficiency.

Description

Cooling tower with cleaning function

Technical Field

The utility model relates to the technical field of cooling towers, in particular to a cooling tower with a cleaning function.

Background

The cooling tower is used as common cooling equipment and is widely applied to various industries. In the sewage treatment industry, a closed cooling tower is used as a type of cooling tower for cooling sewage and sludge, and because of concentration and evaporation of a cooling medium (clean water after treatment) and pollutants contained in the cooling medium (sewage, sludge and the like), after a period of operation, scaling and fouling are generated on the surfaces of the outer wall and the inner wall of a cooling pipe of the cooling tower, the heat exchange effect is reduced, the operation energy consumption is increased, and the stability of sewage treatment is affected under severe conditions. Especially, the dirt on the inner wall can reduce the water inflow of the cooling tower and reduce the processing capacity.

Under the condition, at present, physical means such as high-pressure water flushing and scraping blades are generally adopted for descaling, but cooling pipes inside the cooling tower are in multilayer layout and small in gap, physical methods such as brushes, scraping blades and high-pressure water can only clean the outer side surfaces, the cleaning range and the cleaning effect are limited, and the problems that time and labor are consumed, the descaling effect of hidden positions of the cooling pipes is not ideal, physical damage to the cooling pipes is easy to cause and the like exist.

The Chinese patent document CN210847546U discloses an automatic cleaning and descaling device for a cooling tower, which comprises a spraying assembly and a pollution discharge assembly, wherein the spraying assembly comprises a cooling tower, a spraying water tank, a spraying pipe, a spraying water pump and an automatic dosing machine. The device pumps spray water mixed with a descaling agent in the inner cavity of the spray pool to the spray pipe through the spray water pump and sprays the spray water to the outer wall of the heat exchange pipe and the inside of the cooling tower below, so that scale in the outer wall of the heat exchange pipe and the inside of the cooling tower is removed. However, the device can only clean the outer wall of the cooling pipe, and can not clean the outer wall and the inner wall of the cooling pipe at the same time. If the inner wall of the cooling pipe needs to be cleaned, external pipeline equipment is required to be adopted to respectively chemically clean the outer wall and the inner wall of the cooling pipe by using a descaling agent, a large amount of equipment needs to be added, and the problems of time and labor consumption, high medicament cost, low cleaning efficiency and the like exist.

Disclosure of Invention

The utility model aims to solve the technical problems of overcoming the defects of the prior art, and is a cooling tower with a cleaning function, which has the advantages of simple structure, cost saving and high cleaning efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme:

compared with the prior art, the utility model has the advantages that:

the utility model provides a take cleaning function's cooling tower, includes tower body, cooling tube, inlet tube, outlet pipe, circulating pipe and shower, the cooling tube is located in the tower body, the inlet tube is connected with the water inlet of cooling tube, the outlet pipe is connected with the delivery port of cooling tube, the shower is located the cooling tube top, the tower body bottom is equipped with the pond, circulating pipe water inlet and pond intercommunication, delivery port and shower intercommunication still include first serial-connection pipe and second serial-connection pipe, first serial-connection pipe intercommunication circulating pipe and inlet tube, just first serial-connection pipe is equipped with first serial-connection valve, second serial-connection pipe intercommunication shower and outlet pipe, just be equipped with the second serial-connection valve on the second serial-connection pipe, be equipped with the circulation pipe valve on the circulating pipe, the circulation pipe is located between the connected node of first serial-connection pipe and circulating pipe and delivery port, be equipped with the water intaking valve on the inlet tube, the connected node of second serial-connection pipe and outlet pipe is located between water intaking valve and the cooling tube.

As a further improvement of the above technical scheme:

the water tank is provided with a drain pipe, and the drain pipe is provided with a drain valve.

The drain pipe is detachably connected with the water pool.

And an overflow pipe is arranged on the water tank.

The water tank is provided with a water supplementing pipe, a ball float valve is arranged in the tower body of the water supplementing pipe, and a water supplementing valve is arranged outside the water supplementing pipe.

The connection node of the drain pipe and the water tank is lower than the connection node of the water supplementing pipe and the water tank, and the connection node of the water supplementing pipe and the water tank is lower than the connection node of the overflow pipe and the water tank.

And a circulating pump is arranged on the circulating pipe.

And an observation window is arranged on the tower body.

And a high liquid level sensor and a low liquid level sensor are arranged in the tower body.

The water inlet valve, the water outlet valve, the circulating pipe valve, the first serial valve, the second serial valve and the drain valve are all electric valves or electromagnetic valves or pneumatic valves.

The cooling tower with the cleaning function can complete cleaning without changing the overall structure, and has a simple structure. The first serial pipe and the second serial pipe are arranged and matched with the valve, so that the inner wall and the outer wall of the cooling pipe can be synchronously cleaned, the cleaning efficiency is high, and the cost of the medicament is saved; the cooling tower can be quickly switched between the cooling working condition and the cleaning working condition by adjusting the opening and closing states of the water inlet valve, the water outlet valve, the circulating pipe valve, the first series connection valve and the second series connection valve, and the operation efficiency is high. The cooling tower with the cleaning function has the advantages of simple structure, cost saving and high cleaning efficiency.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a side view at a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1.

The reference numerals in the drawings denote: 1. a tower body; 10. a pool; 2. a cooling tube; 3. a water inlet pipe; 31. a water inlet valve; 4. a water outlet pipe; 41. a water outlet valve; 5. a circulation pipe; 51. a circulation pipe valve; 6. a shower pipe; 7. a first string of tubes; 71. a first series valve; 8. a second cross pipe; 81. a second series valve; 9. a drain pipe; 91. a drain valve; 11. an overflow pipe; 12. a water supplementing pipe; 121. a float valve; 122. a water supplementing valve; 13. a circulation pump; 14. an observation window; 15. a high liquid level sensor; 16. a low level sensor.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific examples.

In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

As shown in fig. 1 to 3, the cooling tower with a cleaning function of the present embodiment includes a tower body 1, a cooling pipe 2, a water inlet pipe 3, a water outlet pipe 4, a circulating pipe 5 and a spray pipe 6, wherein the cooling pipe 2 is arranged in the tower body 1, the water inlet pipe 3 is connected with a water inlet of the cooling pipe 2, the water outlet pipe 4 is connected with a water outlet of the cooling pipe 2, the spray pipe 6 is arranged above the cooling pipe 2, a pool 10 is arranged at the bottom of the tower body 1, the water inlet of the circulating pipe 5 is communicated with the pool 10, the water outlet is communicated with the spray pipe 6, and further includes a first serial pipe 7 and a second serial pipe 8, the first serial pipe 7 is communicated with the circulating pipe 5, the first serial pipe 7 is provided with a first serial valve 71, the second serial pipe 8 is communicated with the spray pipe 6 and the water outlet pipe 4, the second serial pipe 8 is provided with a second serial pipe 81, the circulating pipe 51 is arranged on the circulating pipe 5, the circulating pipe 51 is positioned between a connection node of the first serial pipe 7 and the circulating pipe 5 and the water outlet, a water inlet valve 31 is arranged on the water inlet pipe 3, a connection node of the first serial pipe 7 and the water outlet pipe 5 is positioned between the water inlet valve 31 and the cooling pipe 2, the water outlet 4 is provided with a water outlet valve 41 and a water outlet valve 41 is positioned between the second serial pipe 4 and the water outlet valve 41 is positioned between the water outlet valve 41 and the water outlet valve 2.

During cooling operation of the cooling tower, the water inlet valve 31, the water outlet valve 41 and the circulation pipe valve 51 are opened, and the first and second bypass valves 71 and 81 are closed. The medium to be cooled passes through the water inlet pipe 3, the inside of the cooling pipe 2 and the water outlet pipe 4 in sequence. The circulating cooling water in the water tank 10 sequentially passes through the circulating pipe 5, the spraying pipe 6 and the outer wall of the cooling pipe 2, and finally returns to the water tank 10, and the cooling of the medium to be cooled is realized through repeated circulating flow.

In the cooling tower cleaning mode, the water inlet valve 31, the water outlet valve 41, and the circulation pipe valve 51 are closed, and the first and second bypass valves 71 and 81 are opened. The medium to be cooled is blocked by the water inlet valve 31 and the water outlet valve 41, and cannot enter the cooling pipe 2. Chemical agents in the water tank 10 sequentially pass through the circulating pipe 5, the first serial pipe 7, the water inlet pipe 3, the inside of the cooling pipe 2, the water outlet pipe 4, the second serial pipe 8, the spray pipe 6 and the outer wall of the cooling pipe 2, and finally return to the water tank 10, and the inner wall and the outer wall of the cooling pipe 2 are cleaned simultaneously through multiple circulating flows.

The cooling tower with the cleaning function can complete cleaning without changing the overall structure, and has a simple structure. The first serial pipe 7 and the second serial pipe 8 are arranged and matched with the valve, so that the inner wall and the outer wall of the cooling pipe 2 can be synchronously cleaned, the cleaning efficiency is high, and the medicament cost is saved; by adjusting the on-off states of the water inlet valve 31, the water outlet valve 41, the circulation pipe valve 51, the first series-connection valve 71 and the second series-connection valve 81, the cooling tower can be quickly switched between the cooling working condition and the cleaning working condition, and the operation efficiency is high. The cooling tower with the cleaning function has the advantages of simple structure, cost saving and high cleaning efficiency.

Further, in the present embodiment, the water tank 10 is provided with a drain pipe 9, and the drain pipe 9 is provided with a drain valve 91. After the cleaning is completed, the drain valve 91 is opened to drain water, and the dirt is dissolved in the chemical agent, so that the drain water does not block the pipeline.

Further, in the present embodiment, the drain pipe 9 is detachably connected to the water tank 10. The drainage speed of the cooling tower depends on the size of the drainage pipeline, and according to practical conditions, the drainage pipe 9 with a larger pipe diameter can be replaced, so that the drainage speed is improved.

Further, in this embodiment, the pool 10 is provided with an overflow pipe 11. When the water level in the water tank 10 is higher than the prescribed upper limit water level, the liquid flows out from the overflow pipe 11, preventing damage to the tower body 1.

Further, in this embodiment, the water tank 10 is provided with a water replenishing pipe 12, the water replenishing pipe 12 is provided with a ball float valve 121 inside the tower body 1, and a water replenishing valve 122 is provided outside. By providing a float valve 121, the liquid level is controlled more precisely. By providing the water replenishment valve 122, communication and blocking of an external water source can be achieved.

Further, in this embodiment, the connection node of the drain pipe 9 and the water tank 10 is lower than the connection node of the water replenishing pipe 12 and the water tank 10, and the connection node of the water replenishing pipe 12 and the water tank 10 is lower than the connection node of the overflow pipe 11 and the water tank 10.

Further, in the present embodiment, the circulation pipe 5 is provided with a circulation pump 13. The circulation speed is increased, and the operation efficiency is improved.

Further, in this embodiment, the tower 1 is provided with an observation window 14. The cleaning condition and the water level condition in the tower body 1 can be conveniently observed.

Further, in this embodiment, a high level sensor 15 and a low level sensor 16 are provided in the tower 1. The water level in the pool can be detected in real time.

Further, in the present embodiment, the water inlet valve 31, the water outlet valve 41, the circulation pipe valve 51, the first series connection valve 71, the second series connection valve 81, and the water discharge valve 91 are all electric valves or electromagnetic valves or pneumatic valves. Each valve is matched with the high liquid level sensor 15 and the low liquid level sensor 16 through a PLC system, and therefore automatic control of each working condition can be achieved.

The working principle and the using flow of the utility model are as follows:

the cooling tower is cooled by opening the water inlet valve 31, the water outlet valve 41, and the circulation pipe valve 51, and closing the first and second bypass valves 71 and 81. The high liquid level sensor 15 receives the signal, starts the circulating pump 13, and the medium to be cooled sequentially passes through the water inlet pipe 3, the inside of the cooling pipe 2 and the water outlet pipe 4. The circulating cooling water in the water tank 10 sequentially passes through the circulating pipe 5, the spraying pipe 6 and the outer wall of the cooling pipe 2, and finally returns to the water tank 10, and the cooling of the medium to be cooled is realized through repeated circulating flow. The cooling tower operation program is not set in time, and the stop program can be started to stop the operation, and only the circulation pump 13 is stopped when the operation is stopped.

The cooling tower cleaning operation is performed by closing the water inlet valve 31, the water outlet valve 41, and the circulation pipe valve 51, and opening the first and second bypass valves 71 and 81. The medium to be cooled is blocked by the water inlet valve 31 and the water outlet valve 41, and cannot enter the cooling pipe 2. The high liquid level sensor 15 receives signals, the circulating pump 13 is started, chemical agents in the water tank 10 sequentially pass through the circulating pipe 5, the first serial pipe 7, the water inlet pipe 3, the inside of the cooling pipe 2, the water outlet pipe 4, the second serial pipe 8, the spraying pipe 6 and the outer wall of the cooling pipe 2, finally return to the water tank 10, and the inner wall and the outer wall of the cooling pipe 2 are cleaned simultaneously through multiple circulating flows. Scale and fouling on the inner and outer walls of the cooling tube 2 are removed by chemical means, wherein the chemical agent of the bottom pool 10 needs to be self-prepared according to the type of the contaminants, and the pH value needs to be strictly controlled. Generally, citric acid or hydrochloric acid is used for removing inorganic scale, and the pH is controlled to be about 4; the method of adding caustic soda flakes into sodium hypochlorite is adopted to remove organic pollutants, and the pH is controlled to be about 9. The cleaning cooling tower can set the cleaning time to ensure the cleaning effect, and can also start the stopping program to stop cleaning, and only stop the circulating pump 13 when stopping cleaning. During cleaning, the pH value of acid washing rises, the pH value of alkali washing decreases, and when the pH value changes little, the cooling tower is cleaned; meanwhile, the flow of the water inlet pipe 3 of the cooling tower can be observed, and when the flow is restored to the flow before the pollution and blockage, the cooling tower is cleaned; the cleaning condition in the tower body 1 can be observed through the observation window 14, and when the dirt is obviously reduced, the cleaning of the cooling tower is completed.

The cooling tower drains and supplements water, closes the circulation pump 13 and the water replenishing valve 122, opens the drain valve 91, and drains water. When the water discharge is completed, the low level sensor 16 receives the low level signal, closes the drain valve 91, and opens the water replenishment valve 122 to replenish water. When the water replenishing is completed, the float valve 121 is closed, and the water replenishing is completed. The high liquid level sensor 15 receives the signal, and the PLC control cabinet prompts the completion of water replenishment. The cooling tower draining and replenishing process is generally performed before and after the cooling tower cleaning process. Because the dirt is dissolved in the chemical agent, the cooling tower is not blocked when being drained. The drainage speed of the cooling tower depends on the size of the drainage pipeline, and the pipe diameter can be properly increased according to practical conditions.

While the utility model has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides a take cleaning function's cooling tower, includes tower body (1), cooling tube (2), inlet tube (3), outlet pipe (4), circulating pipe (5) and shower (6), in tower body (1) is located in cooling tube (2), inlet tube (3) are connected with the water inlet of cooling tube (2), outlet pipe (4) are connected with the delivery port of cooling tube (2), cooling tube (2) top is located in shower (6), tower body (1) bottom is equipped with pond (10), circulating pipe (5) water inlet and pond (10) intercommunication, delivery port and shower (6) intercommunication, its characterized in that: still include first cluster siphunculus (7) and second cluster siphunculus (8), first cluster siphunculus (7) intercommunication circulating pipe (5) and inlet tube (3), just first cluster siphunculus (7) are equipped with first cluster and lead to valve (71), second cluster siphunculus (8) intercommunication shower (6) and outlet pipe (4), just be equipped with second cluster and lead to valve (81) on second cluster siphunculus (8), be equipped with circulating pipe valve (51) on circulating pipe (5), circulating pipe valve (51) are located between the connected node of first cluster siphunculus (7) and circulating pipe (5) delivery port, be equipped with water intaking valve (31) on inlet tube (3), the connected node of first cluster siphunculus (7) and circulating pipe (5) is located between water intaking valve (31) and cooling tube (2) water inlet, be equipped with water outlet valve (41) on outlet pipe (4), the connected node of second cluster siphunculus (8) and outlet pipe (4) is located between water outlet valve (41) and cooling tube (2) delivery port.

2. The cooling tower with cleaning function according to claim 1, wherein: the water tank (10) is provided with a drain pipe (9), and the drain pipe (9) is provided with a drain valve (91).

3. The cooling tower with cleaning function according to claim 2, characterized in that: the drain pipe (9) is detachably connected with the water pool (10).

4. The cooling tower with cleaning function according to claim 2, characterized in that: an overflow pipe (11) is arranged on the water tank (10).

5. The cooling tower with cleaning function according to claim 4, wherein: the water tank (10) is provided with a water supplementing pipe (12), the water supplementing pipe (12) is internally provided with a ball float valve (121) in the tower body (1), and the outside is provided with a water supplementing valve (122).

6. The cooling tower with cleaning function according to claim 5, wherein: the connection node of the drain pipe (9) and the water tank (10) is lower than the connection node of the water supplementing pipe (12) and the water tank (10), and the connection node of the water supplementing pipe (12) and the water tank (10) is lower than the connection node of the overflow pipe (11) and the water tank (10).

7. The cooling tower with cleaning function according to claim 6, wherein: the circulating pipe (5) is provided with a circulating pump (13).

8. The cooling tower with cleaning function according to claim 6, wherein: an observation window (14) is arranged on the tower body (1).

9. The cooling tower with cleaning function according to any one of claims 2-8, characterized in that: a high liquid level sensor (15) and a low liquid level sensor (16) are arranged in the tower body (1).

10. The cooling tower with cleaning function according to claim 9, wherein: the water inlet valve (31), the water outlet valve (41), the circulating pipe valve (51), the first serial valve (71), the second serial valve (81) and the water discharge valve (91) are all electric valves or electromagnetic valves or pneumatic valves.