Odor cooling water recycling device

Abstract

The utility model relates to the technical field of odor comprehensive treatment, in particular to an odor cooling water recycling device which comprises an odor cooling tower, the bottom of the odor cooling tower is communicated with a water return pipe used for conveying spray water, and the other end of the water return pipe is communicated with a water tank. A first filtering assembly and a check valve are sequentially arranged on the path of the water return pipe from the odor cooling tower to the water tank, a water diversion pipe used for pumping spraying water is fixedly installed on the water tank, and the other end of the water diversion pipe is fixedly connected with a water inlet of the plate heat exchanger. According to the plate type heat exchanger, cooling and recycling of spraying water are achieved, water resources are saved, the spraying water with temperature can be filtered, the problem that impurities are deposited on the surfaces of plates of the plate type heat exchanger to form a dirt layer and hinder heat transfer is solved, meanwhile, the impurities in the filter screen bag body can be conveniently and regularly cleaned, and the service life of the filter screen bag body is prolonged. And the circulation of spraying water is ensured, the service life of equipment is indirectly prolonged, and certain reliability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of comprehensive odor treatment technology, specifically to an odor cooling water recycling device. Background Technology

[0002] Currently, in the sludge drying process, the common pre-treatment method for the high-temperature odor generated during sludge drying is to directly spray cooling water into an odor cooling tower. The basic principle is to utilize the direct contact between the cooling water and the high-temperature odor, transferring heat from the odor to the cooling water through heat exchange, thereby lowering the odor's temperature. However, the cooled water, after absorbing heat, is conventionally discharged directly into a wastewater treatment system for further treatment. This existing treatment technology has the following drawbacks:

[0003] 1. Spray water is discharged directly after one spraying, which not only causes a huge waste of water resources, but also increases the burden on the wastewater treatment system.

[0004] 2. During the process of cooling high-temperature odorous gases with spray water, a large number of impurities will be carried in the spray water, which can easily cause blockage of the spray water flow pipes and equipment, affecting the operation of the equipment. In severe cases, it can also shorten the service life of the equipment and increase the maintenance cost and replacement frequency. Utility Model Content

[0005] This invention provides a device for recycling cooling water to dissipate odor, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A device for recycling odorous cooling water includes an odorous cooling tower. The bottom of the odorous cooling tower is connected to a return water pipe for conveying spray water. The other end of the return water pipe is connected to a water tank. A first filter assembly and a check valve are sequentially arranged along the path from the odorous cooling tower to the water tank. A water inlet pipe for drawing spray water is fixedly installed on the water tank. The other end of the water inlet pipe is fixedly connected to an inlet of a plate heat exchanger. An outlet of the plate heat exchanger is connected to the water tank via a conveying pipe for conveying low-temperature water. A second filter assembly and a first water pump are sequentially arranged along the path from the water tank to the plate heat exchanger. The water tank is connected to a spray assembly inside the odorous cooling tower via an inlet pipe for conveying low-temperature water. A second water pump, a flow meter, and a regulating valve are sequentially arranged along the path from the water tank to the odorous cooling tower.

[0008] Preferably, the first filter assembly and the second filter assembly each include a filter tee, a filter bag body disposed in the inner cavity of the filter tee, and a first sealing member detachably connected to one opening of the filter tee. One end of the filter bag body is disposed at one opening of the filter tee through a limiting ring, and a drawstring is provided in the other end of the filter bag body. The other end of the filter bag body can be tightened or loosened by pulling the drawstring.

[0009] Preferably, the first filter assembly and the second filter assembly further include a backflush tee and a bellows connected to the filter tee, respectively, and a shut-off valve connected to one port of the backflush tee, and a second sealing element is detachably connected to one port of the backflush tee.

[0010] Preferably, a limiting section is provided at one opening of the filter tee, a limiting ring connected to the filter bag body is provided within the limiting section, and a sealing ring is provided within the limiting section between the filter tee and the backflushing tee.

[0011] Preferably, the inner wall of the limiting segment is connected to a limiting block, the limiting ring has a limiting groove, and the limiting block is adapted to the limiting groove.

[0012] Preferably, the filter tee pipe on the water inlet pipe path is connected to the first water pump via a corrugated pipe.

[0013] Preferably, the filter tee on the return water pipe path is connected to the check valve via a corrugated pipe.

[0014] Preferably, the inner cavity of the water tank is divided into a low-temperature cavity and a high-temperature cavity by a partition, the return water pipe and the inlet water pipe are respectively connected to the high-temperature cavity, and the delivery pipe and the inlet water pipe are respectively connected to the low-temperature cavity.

[0015] Preferably, a water supply pipe is fixedly installed on the top of the water tank, and a drain pipe is fixedly installed on one side of the water tank. The water supply pipe is connected to the low-temperature chamber, and the drain pipe is connected to the high-temperature chamber.

[0016] Preferably, the plate heat exchanger is further provided with an inlet connector connected to the workshop cooling water inlet and an outlet connector connected to the workshop cooling water outlet.

[0017] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0018] In this invention, the spray water used to cool high-temperature odorous gases can be cooled and recycled through the cooperation of a return water pipe, a water tank, a water inlet pipe, a first water pump, a plate heat exchanger, a second water pump, and a regulating valve. This not only saves water resources but also reduces wastewater discharge and the burden on the wastewater treatment system, making ingenious and rational use of existing resources and is worthy of promotion. Furthermore, the spray water volume can be controlled by the regulating valve design, effectively improving the odor-cooling effect.

[0019] In this invention, the filter bag inside the filter three-way pipe can filter the spray water with temperature, so as to ensure that impurities in the spray water are filtered out. This avoids the problem that impurities will gradually accumulate on the surface of the plate heat exchanger and form a dirt layer that hinders heat transfer. It also avoids the problem of blockage of the first and second water pumps, ensuring the smooth circulation of spray water and the heat exchange effect.

[0020] In this invention, by having the operator close the shut-off valve, check valve, or first water pump and open the first and second sealing parts, the operator can clean the impurities inside the filter bag, complete the periodic impurity cleaning, and ensure the circulation of the spray water.

[0021] In this invention, by having staff close the shut-off valve, check valve, or first water pump and separate the filter tee and backflush tee, staff can replace the filter bag, effectively ensuring the stability of the filtration system.

[0022] In summary, this utility model not only achieves cooling and recycling of spray water, saving water resources, but also filters the spray water with temperature, avoiding the problem of impurities depositing on the surface of the plate heat exchanger plates to form a dirt layer that hinders heat transfer. At the same time, it also facilitates the regular cleaning of impurities in the filter bag, ensuring the circulation of spray water and indirectly extending the service life of the equipment, thus demonstrating a certain degree of reliability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a right-view stereoscopic structural diagram of the present invention.

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the water tank of this utility model.

[0026] Figure 4 for Figure 2 A magnified structural diagram at point A in the diagram.

[0027] Figure 5 This is a schematic diagram of the structure of the first filter component of this utility model.

[0028] Figure 6 for Figure 5 A magnified structural diagram at point B in the diagram.

[0029] In the diagram: 1. Odor cooling tower; 2. Return water pipe; 3. Water tank; 4. Check valve; 5. Water inlet pipe; 6. Plate heat exchanger; 7. Delivery pipe; 8. First water pump; 9. Inlet water pipe; 10. Spray assembly; 11. Second water pump; 12. Flow meter; 13. Regulating valve; 14. Filter tee; 15. Filter bag body; 16. First sealing component; 17. Limiting ring; 18. Tie rope; 19. Backflush tee; 20. Corrugated pipe; 21. Shut-off valve; 22. Second sealing component; 23. Limiting section; 24. Sealing ring; 25. Limiting block; 26. Limiting groove; 27. Partition; 28. Low temperature chamber; 29. ​​High temperature chamber; 30. Water supply pipe; 31. Drain pipe; 32. Inlet connector; 33. Outlet connector. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0032] like Figures 1-6As shown, this utility model provides a device for recycling odorous cooling water, including an odorous cooling tower 1. The odorous cooling tower 1 is a conventional device with a high-temperature odorous gas inlet on one side and a high-temperature odorous gas outlet on the other side or at the top of the odorous cooling tower 1, corresponding to the high-temperature odorous gas inlet. In the attached diagram, the high-temperature odorous gas outlet is shown as being located at the top of the odorous cooling tower 1. The bottom of the odorous cooling tower 1 is connected to a return water pipe 2 for conveying spray water. The other end of the return water pipe 2 is connected to a water tank 3. The return water pipe 2 runs from the odorous cooling tower 1 to the water tank 3 and is sequentially equipped with a first filter assembly and a check valve 4. A water inlet pipe 5 for drawing spray water is fixedly installed on the water tank 3. The other end of the water inlet pipe 5 is fixedly connected to an inlet of a plate heat exchanger 6. An outlet of the plate heat exchanger 6 is connected to a... The conveying pipe 7 for transporting low-temperature water is connected to the water tank 3, and the water inlet pipe 5 is arranged sequentially from the water tank 3 to the plate heat exchanger 6, with a second filter assembly and a first water pump 8. The water tank 3 is connected to the spray assembly 10 inside the odor cooling tower 1 through the inlet pipe 9 for transporting low-temperature water. The spray assembly 10 adopts the existing conventional structure, including branch pipes and spray heads. This paper does not make a structural design for this, but only uses it to express the integrity and feasibility of the entire circulation device. The spray assembly 10 is designed according to the internal structure of the odor cooling tower 1, and is not limited to the structure shown in the diagram of this scheme. It can be designed as a ring nozzle to ensure the comprehensive cooling of high-temperature odor inside the odor cooling tower 1. The inlet pipe 9 is arranged sequentially from the water tank 3 to the odor cooling tower 1, with a second water pump 11, a flow meter 12 and a regulating valve 13.

[0033] Among them, combined Figure 1 , Figure 2 and 5 As shown, the first filter assembly and the second filter assembly have the same structure. The first filter assembly and the second filter assembly respectively include a filter three-way pipe 14, a filter bag body 15 disposed in the inner cavity of the filter three-way pipe 14, and a first sealing member 16 detachably connected to one opening of the filter three-way pipe 14. One end of the filter bag body 15 is disposed at one opening of the filter three-way pipe 14 through a limiting ring 17, and a drawstring rope 18 is provided in the other end of the filter bag body 15. The other end of the filter bag body 15 can be tightened or loosened by pulling the drawstring rope 18.

[0034] The filter bag body 15 is made of materials including but not limited to polyester, polycarbonate, polypropylene, polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF). This is because these materials have excellent chemical stability and strong corrosion resistance. During circulating water filtration, they can effectively prevent chemical reactions with the filtered liquid and always maintain the stability of their own structure, without easily deforming or being damaged, thus providing a solid guarantee for the impurity filtration effect.

[0035] As a further step, of the three pipe sections of the filter tee 14, two pipe sections are coaxially arranged, and the other pipe section is inclined. One end of the filter bag body 15 is set in the inclined pipe section, and the first sealing member 16 is detachably connected to the inclined pipe section. The outer wall of the inclined pipe section is provided with thread texture. The first sealing member 16 is a sealing cap, which is threadedly connected to one pipe section of the filter tee 14 to ensure that after the first sealing member 16 is opened, the staff can remove the impurities filtered in the filter bag body 15 by disassembling the drawstring 18 without disassembling the entire pipe section, which is convenient and practical.

[0036] As a further step, combining Figure 4 , Figure 5 and Figure 6 As shown, the first filter assembly and the second filter element also include a backflush tee pipe 19 and a bellows pipe 20 connected to the filter tee pipe 14, and a shut-off valve 21 connected to one port of the backflush tee pipe 19. A second sealing element 22 is detachably connected to one port of the backflush tee pipe 19. A limiting section 23 is opened at one port of the filter tee pipe 14. A limiting ring 17 connected to the filter bag body 15 is set in the limiting section 23. A sealing ring 24 located between the filter tee pipe 14 and the backflush tee pipe 19 is set in the limiting section 23.

[0037] The second sealing element 22 is threadedly connected to one opening of the backflushing tee pipe 19. Opening the second sealing element 22 allows workers to inject clean water through one opening of the backflushing tee pipe 19, ensuring that impurities inside the filter bag 15 are thoroughly cleaned. Furthermore, the depth of the limiting section 23 is close to the total thickness of the limiting ring 17 and the sealing ring 24. Therefore, when the backflushing tee pipe 19 and the filter tee pipe 14 are connected via a flange, the sealing ring 24 can seal between the filter tee pipe 14 and the backflushing tee pipe 19. Simultaneously, when the sealing ring 24 is compressed, it also ensures the stability of the limiting ring 17, thereby guaranteeing the stability of the filter bag 15 and preventing it from falling off.

[0038] Furthermore, the design of the corrugated pipe 20 allows the connection between the filter tee 14 and the backflushing tee 19 to be disassembled when the filter bag 15 needs to be replaced. Then, the flexibility of the corrugated pipe 20 allows the filter tee 14 to be moved, making it easier for staff to remove and replace the filter bag 15.

[0039] Furthermore, the inner wall of the limiting section 23 is connected to a limiting block 25, and a limiting groove 26 is opened on the limiting ring 17. The limiting block 25 is adapted to the limiting groove 26. The design of the limiting block 25 can effectively prevent the limiting ring 17 from driving the filter bag body 15 to rotate, thus having strong stability. The thickness of the limiting block 25 is the same as that of the limiting ring 17. A placement area is provided between the limiting block 25 and the outer wall of the filter tee pipe 14. The sealing ring 24 is placed in the placement area when the filter tee pipe 14 is connected to the backflushing tee pipe 19 to ensure the stability of the sealing ring 24.

[0040] It is worth noting that all pipeline connections in this solution use flange connections, and this connection technology is already a publicly available technology. When using this technology, those skilled in the art can perform sealing treatment based on common sense, so this article will not elaborate on it further.

[0041] Combination Figure 1 As shown, as a further step, the filter tee pipe 14 on the water inlet pipe 5 is connected to the first water pump 8 via the corrugated pipe 20. When the first sealing member 16 on the filter tee pipe 14 is opened, the design of the first water pump 8 allows one end of its water inlet pipe 5 to be blocked when the first water pump 8 stops working. Then, by closing the shut-off valve 21 on the water inlet pipe 5, the other end of the water inlet pipe 5 can be blocked, thereby facilitating the cleaning of impurities in the filter bag 15 on the water inlet pipe 5. The filter tee pipe 14 on the return water pipe 2 is connected to the check valve 4 via the corrugated pipe 20. Similarly, when the first sealing member 16 on the filter tee pipe 14 is opened, the closing of the check valve 4 and the shut-off valve 21 on the return water pipe 2 facilitates the cleaning of impurities in the filter bag 15 on the return water pipe 2.

[0042] It is worth noting that the design of the shut-off valve 21 and check valve 4 on the return water pipe 2 path, as well as the design of the shut-off valve 21 and the first water pump 8 on the inlet water pipe 5 path, not only facilitates the cleaning of impurities in the filter bag 15, but also facilitates the replacement of the filter bag 15.

[0043] Combination Figure 1 and Figure 3 As shown, as a further step, the inner cavity of the water tank 3 is divided into a low-temperature chamber 28 and a high-temperature chamber 29 by a partition 27. The return water pipe 2 and the inlet water pipe 5 are respectively connected to the high-temperature chamber 29, and the delivery pipe 7 and the inlet water pipe 9 are respectively connected to the low-temperature chamber 28. The partition 27 divides the inner cavity of the water tank 3 into two chambers to ensure that the spraying high-temperature water and low-temperature water share one water tank 3, thereby reducing the problem of large floor space caused by using multiple water tanks 3.

[0044] The water tank 3 has a water supply pipe 30 fixedly installed on its top and a drain pipe 31 fixedly installed on one side. The water supply pipe 30 is connected to the low-temperature chamber 28 and the drain pipe 31 is connected to the high-temperature chamber 29. The water supply pipe 30 is used to replenish the water tank 3 with new water to ensure the water supply of the entire circulation system. The drain pipe 31 is equipped with a valve. When new water is added to the water tank 3, the valve on the drain pipe 31 is opened to allow the high-temperature water in the high-temperature chamber 29 to be discharged, which helps to ensure that the entire circulating water can circulate stably after new water is injected into the low-temperature chamber 28.

[0045] Furthermore, the plate heat exchanger 6 is also equipped with an inlet connector 32 connected to the workshop cooling water inlet and an outlet connector 33 connected to the workshop cooling water outlet. The inlet connector 32 and the outlet connector 33 are connected to the existing workshop, so that the cooling water flowing in the workshop can carry away the heat of the circulating water in the water tank 3 through the plate heat exchanger 6, and make reasonable use of resources.

[0046] The working principle and usage process of this utility model are as follows: The second water pump 11 pumps water from the low-temperature chamber 28 to the spray assembly 10 via the inlet pipe 9, causing the low-temperature water to directly spray into the odor cooling tower 1 to cool the high-temperature odor. During this process, the spray water volume is controlled by adjusting the regulating valve 13, which improves the atomization effect of the nozzles when the spray water volume increases, thus enhancing the odor cooling effect. After cooling the odor, the spray water with the desired temperature flows back to the high-temperature chamber 29 via the return pipe 2, and the first water pump 8 further cools the odor. The sprayed water, at a certain temperature, enters the plate heat exchanger 6 through the water inlet pipe 5 for temperature reduction treatment. After cooling, it is transported to the low-temperature chamber 28 through the delivery pipe 7, which facilitates the extraction work of the second water pump 11. This device forms a circulation system, which not only saves water resources but also reduces wastewater discharge and the burden on the wastewater treatment system. During this process, the inlet connector 32 and outlet connector 33 on the plate heat exchanger 6 connect to the existing workshop, so that the cooling water flowing in the workshop can carry away the heat of the circulating water in the water tank 3 through the plate heat exchanger 6. This effectively and rationally utilizes existing resources and is worthy of promotion.

[0047] In addition, when the spray water completes its recycling cycle, the filter bag 15 inside the filter tee 14 filters the heated spray water twice to ensure that impurities in the spray water are filtered out. This prevents impurities from gradually accumulating on the plate surface of the plate heat exchanger 6 and forming a scale layer that hinders heat transfer. It also prevents blockages in the first water pump 8 and the second water pump 11, ensuring smooth spray water circulation and heat exchange efficiency. When it is necessary to clean the impurities inside the filter bag 15 after a certain period of time, the operator can first close the shut-off valve 21, and then close the check valve 4 or the first water pump 8 to allow the backflushing tee to be closed. One end of pipe 19 and one end of corrugated pipe 20 are blocked respectively. Thus, after the staff opens the first sealing part 16 and the second sealing part 22, the spray water in the filter tee pipe 14 will be discharged. After the discharge, the staff can disassemble the tie rope 18 and inject it through one of the openings of the backflushing tee pipe 19 so that the impurities in the filter bag body 15 can be cleaned. Then the tie rope 18 is tightened and the first sealing part 16 and the second sealing part 22 are sealed. Finally, the shut-off valve 21, check valve 4 or the first water pump 8 are opened one by one to complete the cleaning of impurities in the filter bag body 15 and ensure the circulation of spray water.

[0048] When the filter bag 15 is damaged and needs to be replaced, the staff can drain the spray water in the filter three-way pipe 14 by following the steps of cleaning impurities. Then, the connection between the filter three-way pipe 14 and the backwash three-way pipe 19 is disconnected, so that the filter three-way pipe 14 and the backwash three-way pipe 19 are separated. After the filter three-way pipe 14 is separated from the backwash three-way pipe 19, the filter three-way pipe 14 can move freely with the help of the corrugated pipe 20, which makes it easier for the staff to replace the filter bag 15.

[0049] It should be noted that the top of the water tank 3 is also equipped with a dosing port and an inspection port that communicate with the low-temperature chamber 28. The dosing port is used to add chemicals to improve the water quality of the circulating water, which helps to reduce the high-temperature odor while inhibiting the growth of microorganisms in the odor in the circulating water, thus ensuring the water quality of the circulating water. Furthermore, this solution only provides a device for dealing with and solving technical problems. When using this device, a support frame will be installed to ensure the stability of each piece of equipment.

[0050] In this invention, the term "plural" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0052] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A device for recycling cooling water to remove odors, characterized in that, The system includes an odor cooling tower (1), the bottom of which is connected to a return water pipe (2) for conveying spray water. The other end of the return water pipe (2) is connected to a water tank (3). The return water pipe (2) is arranged sequentially from the odor cooling tower (1) to the water tank (3) with a first filter assembly and a check valve (4). A water inlet pipe (5) for drawing spray water is fixedly installed on the water tank (3). The other end of the water inlet pipe (5) is fixedly connected to an inlet of a plate heat exchanger (6). The plate heat exchanger (6) has... An outlet is connected to a water tank (3) via a delivery pipe (7) for conveying low-temperature water. The water inlet pipe (5) is arranged from the water tank (3) to the plate heat exchanger (6) with a second filter assembly and a first water pump (8) in sequence. The water tank (3) is connected to a spray assembly (10) inside the odor cooling tower (1) via an inlet pipe (9) for conveying low-temperature water. The inlet pipe (9) is arranged from the water tank (3) to the odor cooling tower (1) with a second water pump (11), a flow meter (12) and a regulating valve (13) in sequence.

2. The odor-recycling cooling water device according to claim 1, characterized in that, The first filter assembly and the second filter assembly respectively include a filter three-way pipe (14), a filter bag body (15) disposed in the inner cavity of the filter three-way pipe (14), and a first sealing member (16) detachably connected to one end of the filter three-way pipe (14). One end of the filter bag body (15) is disposed at one end of the filter three-way pipe (14) through a limiting ring (17), and a drawstring rope (18) is provided in the other end of the filter bag body (15). The other end of the filter bag body (15) can be tightened or loosened by pulling the drawstring rope (18).

3. The odor-recycling cooling water device according to claim 2, characterized in that, The first filter assembly and the second filter assembly also include a backflush tee pipe (19) and a bellows pipe (20) connected to the filter tee pipe (14) and a shut-off valve (21) connected to one port of the backflush tee pipe (19), and a second sealing member (22) is detachably connected to one port of the backflush tee pipe (19).

4. The odor-recycling cooling water device according to claim 3, characterized in that, A limiting section (23) is provided at one end of the filter three-way pipe (14). A limiting ring (17) connected to the filter bag body (15) is provided in the limiting section (23), and a sealing ring (24) is provided in the limiting section (23) between the filter three-way pipe (14) and the backflushing three-way pipe (19).

5. The odor-recycling cooling water device according to claim 4, characterized in that, The inner wall of the limiting segment (23) is connected to a limiting block (25), and a limiting groove (26) is opened on the limiting ring (17). The limiting block (25) is adapted to the limiting groove (26).

6. The odor-recycling cooling water device according to claim 3, characterized in that, The filter tee (14) on the path of the water inlet pipe (5) is connected to the first water pump (8) through the corrugated pipe (20).

7. The odor-recycling cooling water device according to claim 3, characterized in that, The filter tee (14) on the return water pipe (2) path is connected to the check valve (4) through the corrugated pipe (20).

8. The odor-recycling cooling water device according to claim 1, characterized in that, The inner cavity of the water tank (3) is divided into a low-temperature cavity (28) and a high-temperature cavity (29) by a partition (27). The return water pipe (2) and the inlet water pipe (5) are respectively connected to the high-temperature cavity (29), and the delivery pipe (7) and the inlet water pipe (9) are respectively connected to the low-temperature cavity (28).

9. The odor-recycling cooling water device according to claim 8, characterized in that, A water supply pipe (30) is fixedly installed on the top of the water tank (3), and a drain pipe (31) is fixedly installed on one side of the water tank (3). The water supply pipe (30) is connected to the low temperature chamber (28), and the drain pipe (31) is connected to the high temperature chamber (29).

10. The odor-recycling cooling water device according to claim 1, characterized in that, The plate heat exchanger (6) is also provided with an inlet connector (32) connected to the workshop cooling water inlet and an outlet connector (33) connected to the workshop cooling water outlet.

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