Closed cooling tower

Abstract

The closed cooling tower comprises a tower body and a water return pipe, one end of the water return pipe is communicated with the bottom of the tower body, and the other end of the water return pipe is communicated with the upper portion of the tower body. A spraying pipeline is arranged in the tower body and is communicated with the upper end of the water return pipe. And a filler which is detachable from the tower body is arranged below the spraying pipeline. A fluid pipeline is arranged in the tower body, and the two ends of the fluid pipeline extend out of the tower body and are communicated with an external pipeline. The fluid pipeline comprises an upper cooling pipe and a lower cooling pipe, the upper cooling pipe is located between the filler and the spraying pipeline, and the lower cooling pipe is located below the filler. And the upper cooling pipe is communicated with the lower cooling pipe. By using the closed cooling tower, high-temperature cooling water can be rapidly cooled, and the use amount of the cooling water is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling equipment technical field, specifically is closed cooling tower. BACKGROUND

[0002] Precious metals can be recovered after being treated by roasting process. In order to control the generation of harmful substances in the roasting process, the temperature of the flue gas inside the incineration system needs to be controlled, so the incineration system generally controls the internal temperature by water cooling. A large amount of hot water is generated in this process. The existing technology generally stores the heated cooling water in a water storage pool for natural cooling, and then the cooling water is reheated through the return water pipeline. This method uses a large amount of cooling water, and the water supply pressure is large. SUMMARY

[0003] To solve the above technical problems, the utility model provides closed cooling tower.

[0004] The technical scheme of the utility model is as follows: the closed cooling tower comprises a tower body and a return water pipe, one end of the return water pipe is communicated with the bottom of the tower body, and the other end is communicated with the upper part of the tower body. The inside of the tower body is provided with a spray pipe, and the spray pipe is communicated with the upper end of the return water pipe. The lower part of the spray pipe is provided with a filler which is detachable with the tower body. The tower body is provided with a fluid pipe, and both ends of the fluid pipe extend to the outside of the tower body and are communicated with the external pipeline; the fluid pipe comprises an upper cooling pipe and a lower cooling pipe, the upper cooling pipe is located between the filler and the spray pipe, and the lower cooling pipe is located below the filler. The upper cooling pipe is communicated with the lower cooling pipe.

[0005] Further, the upper part of the tower body is provided with an air outlet, and the air outlet is provided with a fan. The lower part of the tower body is provided with a liquid storage pool, and the side surface below the tower body is provided with a plurality of air inlets.

[0006] Further, the inner wall of the tower body and the upper part of the air inlet are provided with a first convex edge, and the first convex edge is provided with a cyclone plate.

[0007] Further, the cyclone plate comprises a side edge, a plurality of fasteners are symmetrically arranged on the side edge, the fasteners pass through the side edge and are screwed into the first convex edge. A plurality of radial inclined openings are arranged on the cyclone plate.

[0008] Further, the bottom end of the return water pipe is communicated with the bottom of the tower body through a three-way pipe, and a three-way valve is arranged on the three-way pipe; a water pump is arranged on the return water pipe.

[0009] Further, a demister is arranged above the spray pipe in the inside of the tower body.

[0010] Further, the inner wall of the tower body is provided with a second convex edge, and the top surface of the second convex edge is in contact with the bottom surface of the filler.

[0011] Further, the spray pipeline comprises a main water pipe and a secondary water pipe. A plurality of secondary water pipes are evenly arranged in the length direction of the main water pipe, and the main water pipe is communicated with the upper end of the return water pipe through a connecting pipe; a plurality of spray heads are evenly arranged in the length of the secondary water pipe.

[0012] Further, the fluid pipeline comprises a main pipe and a secondary pipe, and a plurality of secondary pipes are evenly arranged in the length direction of the main pipe. The upper part and the lower part of the fluid pipeline are both provided with the main pipe, and the two ends of the secondary pipe are communicated with the main pipe. The main pipe is provided with an outer communication pipe, and the tower body is provided with a through hole matched with the outer communication pipe.

[0013] Further, the secondary pipe comprises an upper cooling pipe and a lower cooling pipe, and the upper cooling pipe and the lower cooling pipe are communicated through a straight pipe. The filler is provided with a perforation matched with the straight pipe.

[0014] Compared with the prior art, the advantages of the utility model lie in that the spray pipeline forms water mist in the tower body, improves the cooling capacity of the cooling tower on the fluid pipeline, and accelerates the cooling process of the cooling water in the fluid pipeline. The filler can delay the time of water staying in the tower body, and fully utilizes the heat absorption effect of water to cool the fluid pipeline. The cooling water in the fluid pipeline is double-cooled through the upper cooling pipe and the lower cooling pipe, which further improves the cooling effect of the cooling water, saves the amount of cooling water, and reduces the water supply pressure. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Fig. 1 It is a whole schematic view of the utility model;

[0017] Fig. 2 It is a cross-sectional schematic view of the tower body of the utility model;

[0018] Fig. 3 It is Fig. 2 It is an enlarged view of A in the middle;

[0019] Fig. 4 It is a spray pipeline schematic view of the utility model;

[0020] Fig. 5 It is a fluid pipeline schematic view of the utility model;

[0021] Fig. 6 It is a cyclone plate schematic view of the utility model.

[0022] The components are as follows: 1. Tower body; 2. Spray pipe; 3. Demister; 4. Packing; 5. Fluid pipe; 6. Swirl plate; 11. Air outlet; 12. T-pipe; 13. Return water pipe; 14. Air inlet; 15. Liquid storage tank; 16. Through hole; 17. First convex edge; 18. Second convex edge; 111. Fan; 121. Three-way valve; 131. Water pump; 21. Main water pipe; 211. Connecting pipe; 22. Secondary water pipe; 221. Sprayer head; 41. Perforation; 51. Main pipe; 511. External through pipe; 52. Secondary pipe; 521. Upper cooling pipe; 522. Lower cooling pipe; 523. Straight pipe; 61. Side; 62. Angled through port; 611. Fastener. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] The specific embodiments of this utility model will now be described with reference to the accompanying drawings:

[0025] like Figs. 1-6 As shown, the closed-circuit cooling tower includes a tower body 1 and a return water pipe 13. One end of the return water pipe 13 is connected to the bottom of the tower body 1 via a three-way pipe 12, on which a three-way valve 121 is installed. A water pump 131 is installed on the return water pipe 13. The other end of the return water pipe 13 is connected to the upper part of the tower body 1. An air outlet 11 is provided at the upper part of the tower body 1, and a fan 111 is installed at the air outlet 11. A liquid storage tank 15 is provided at the lower part of the tower body 1, and multiple air inlets 14 are provided on the side below the tower body 1. The fan 111 draws out the gas inside the tower body 1, and the outside airflow flows into the tower body 1 from the air inlets 14. The liquid storage tank 15 can temporarily store the liquid flowing out from the return water pipe 13. A spray pipe 2 is provided inside the tower body 1, and the spray pipe 2 is connected to the upper end of the return water pipe 13. The water pump 131 continuously circulates the water from the liquid storage tank 15 to the spray pipe 2 at the upper part of the tower body 1. Under the action of the spray pipe 2, water mist is formed inside the tower body 1. By controlling the opening of the three-way valve 121, the water in the storage tank 15 can be drained or the water flow can be controlled to the water pump 131. A demister 3 is installed inside the tower body 1 above the spray pipe 2. As an existing device, the demister 3 can prevent excessive water from being discharged from the air outlet 11 through evaporation during the heat dissipation process, thus saving water.

[0026] The tower body 1 is provided with a fluid pipeline 5, both ends of the fluid pipeline 5 extend to the outside of the tower body 1 and communicate with the external pipeline. The fluid pipeline 5 comprises a main pipe 51 and a plurality of secondary pipes 52, the secondary pipes 52 are evenly distributed along the length direction of the main pipe 51. The upper part and the lower part of the fluid pipeline 5 are provided with the main pipe 51, both ends of the secondary pipe 52 communicate with the main pipe 51. The main pipe 51 is provided with an outer through pipe 511, the tower body 1 is provided with a through hole 16 matched with the outer through pipe 511. The secondary pipe 52 comprises an upper cooling pipe 521 and a lower cooling pipe 522, the upper cooling pipe 521 is located between the filler 4 and the spray pipeline 2, and the lower cooling pipe 522 is located below the filler 4. The upper cooling pipe 521 and the lower cooling pipe 522 communicate through a straight pipe 523, and the filler 4 is provided with a perforation 41 matched with the straight pipe 523. The fluid to be cooled flows into the outer through pipe 511 at the upper end of the fluid pipeline 5, sequentially passes through the upper cooling pipe 521, the straight pipe 523 and the lower cooling pipe 522, and finally flows out from the outer through pipe 511 at the lower end. The fluid in the fluid pipeline 5 is rapidly cooled under the double cooling effects of the upper cooling pipe 521 and the lower cooling pipe 522.

[0027] The spray pipeline 2 comprises a main water pipe 21 and a plurality of secondary water pipes 22. The secondary water pipes 22 are evenly distributed along the length direction of the main water pipe 21, and the main water pipe 21 communicates with the upper end of the water return pipe 13 through a connecting pipe 211. The water body enters the main water pipe 21 from the water return pipe 13, and is then dispersed to each secondary water pipe 22, and finally sprayed out through a plurality of spray heads 221 evenly distributed along the length of the secondary water pipe 22, so that the fluid pipeline 5 is in a uniform and dense water mist.

[0028] The inner wall of the tower body 1 and the upper part of the air inlet 14 are provided with a first convex edge 17, the first convex edge 17 is provided with a cyclone plate 6, and the cyclone plate 6 is provided with a plurality of radial inclined through holes 62. After the airflow passes through the cyclone plate 6, a spiral airflow is formed, which limits the air flow rate in the tower body 1 and improves the heat dissipation effect of the tower body 1. The cyclone plate 6 comprises a side edge 61, and a plurality of fasteners 611 are symmetrically distributed on the side edge 61. The fasteners 611 pass through the side edge 61 and are screwed into the first convex edge 17. The detachable cyclone plate 6 is convenient for repair or replacement.

[0029] The lower part of the spray pipeline 2 is provided with a filler 4 which is detachable from the tower body 1. The inner wall of the tower body 1 is provided with a second convex edge 18, and the top surface of the second convex edge 18 is in contact with the bottom surface of the filler 4. The detachable filler 4 is convenient for replacement and cleaning, so as to ensure the interception effect of the water body or prevent water accumulation on the filler 4.

[0030] The working principle of the specific embodiment of the utility model is that the water pump 131 transports the accumulated water in the liquid storage pool 15 to the spray pipeline 2 on the upper part of the tower body 1 along the backwater pipe 13. The spray pipeline 2 forms water mist in the inside of the tower body 1, and cools the fluid pipeline 5. The high-temperature fluid flows in from the outer through pipe 511 on the upper end of the fluid pipeline 5, is cooled gradually by the main pipe 51 and the secondary pipe 52 in turn, and finally flows out from the outer through pipe 511 on the lower end of the fluid pipeline 5.

[0031] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the terms "on", "above", "under", "below", "left", "right", "front", "rear", and the like are used for explanation purposes only.

[0032] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments according to the technical essence of the present application, as long as it does not deviate from the technical solution of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A closed cooling tower comprising a tower body (1) and a return water pipe (13), one end of which communicates with the bottom of the tower body (1) and the other end of which communicates with the upper part of the tower body (1), characterized in that: The inside of the tower body (1) is provided with a spray pipeline (2) which is communicated with the upper end of the backwater pipe (13); the lower part of the spray pipeline (2) is provided with a filler (4) which is detachable with the tower body (1); the tower body (1) is provided with a fluid pipeline (5) whose both ends extend to the outside of the tower body (1) and is communicated with the external pipeline; the fluid pipeline (5) comprises an upper cooling pipe (521) and a lower cooling pipe (522), the upper cooling pipe (521) is located between the filler (4) and the spray pipeline (2), and the lower cooling pipe (522) is located below the filler (4); the upper cooling pipe (521) is communicated with the lower cooling pipe (522).

2. The closed cooling tower of claim 1, wherein: The upper part of the tower body (1) is provided with an air outlet (11) which is provided with a fan (111); the lower part of the tower body (1) is provided with a liquid storage pool (15), and the side below the tower body (1) is provided with a plurality of air inlets (14).

3. The closed cooling tower of claim 2, wherein: The inner wall of the tower body (1) and the upper part of the air inlet (14) are provided with a first convex edge (17), and the first convex edge (17) is provided with a cyclone plate (6).

4. The closed cooling tower according to claim 3, characterized in that: The cyclone plate (6) comprises a side edge (61) which is provided with a plurality of fasteners (611) symmetrically distributed, the fasteners (611) pass through the side edge (61) and are screwed into the first convex edge (17); the cyclone plate (6) is provided with a plurality of radial inclined openings (62).

5. The closed cooling tower of claim 1, wherein: The bottom end of the backwater pipe (13) is communicated with the bottom of the tower body (1) through a three-way pipe (12), and the three-way pipe (12) is provided with a three-way valve (121); the backwater pipe (13) is provided with a water pump (131).

6. The closed cooling tower of claim 1, wherein: The inside of the tower body (1) is provided with a demister (3) above the spray pipeline (2).

7. The closed cooling tower of claim 1, wherein: The inner wall of the tower body (1) is provided with a second convex edge (18), and the top surface of the second convex edge (18) is in contact with the bottom surface of the filler (4).

8. The closed cooling tower of claim 1, wherein: The spray pipeline (2) comprises a main water pipe (21) and a secondary water pipe (22); a plurality of secondary water pipes (22) are uniformly arranged in the length direction of the main water pipe (21), and the main water pipe (21) is communicated with the upper end of the backwater pipe (13) through a connecting pipe (211); a plurality of spray heads (221) are uniformly arranged in the length of the secondary water pipe (22).

9. The closed cooling tower of claim 1, wherein: The fluid pipeline (5) comprises a main pipe (51) and a secondary pipe (52), a plurality of secondary pipes (52) are uniformly arranged in the length direction of the main pipe (51); the upper part and the lower part of the fluid pipeline (5) are both provided with the main pipe (51), and the both ends of the secondary pipe (52) are communicated with the main pipe (51); the main pipe (51) is provided with an outer communication pipe (511), and the tower body (1) is provided with a through hole (16) matched with the outer communication pipe (511).

10. The closed cooling tower of claim 9, wherein: The secondary pipe (52) comprises the upper cooling pipe (521) and the lower cooling pipe (522), the upper cooling pipe (521) and the lower cooling pipe (522) are communicated through a straight pipe (523), and the filler (4) is provided with a perforation (41) matched with the straight pipe (523).

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