Cooling tower system
By introducing balance pipes and inclined drain pipes into the cooling tower system, combined with spiral guide channels and filter components, the problem of secondary pollution caused by pollutant retention in the cooling tower system is solved, achieving physical isolation of pollutants and flow balance, and improving the stability and economic benefits of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING 21VIANET DATA CENT
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-05
AI Technical Summary
In existing parallel cooling tower systems, pollutants are easily retained during the sewage discharge process, leading to secondary pollution of the main circulation pipeline and affecting the system's stability and efficiency.
The sewage discharge path is shifted from the main circulation pipe to the system's balance pipe. The balance pipe is spatially decoupled from the main circulation water flow. The inclined sewage pipe and spiral guide channel are used to achieve physical isolation of pollutants. Filter components and flushing ports are also provided for impurity treatment.
It effectively prevents the secondary backflow of pollutants, maintains the ability to balance flow, reduces operating costs, and improves system stability and economic benefits.
Smart Images
Figure CN224202239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooling tower technology, and in particular to a cooling tower system. Background Technology
[0002] Cooling towers, as important heat exchange equipment in industrial production, typically cool circulating water through direct contact between air and hot water. During operation, dissolved impurities in the water evaporate and concentrate, forming sediments, microorganisms, and suspended particles. If these contaminants are not removed in time, they will not only reduce heat exchange efficiency but also exacerbate pipe corrosion and scaling, seriously affecting the stability of system operation.
[0003] In existing parallel cooling tower systems, unit cleaning typically involves closing the valves on the main circulation pipeline and opening the drain valves on the branch pipelines. However, this method can cause a fluid stagnation zone to form in front of the closed valves during the draining process. This allows wastewater containing high concentrations of pollutants to accumulate in front of the closed valves on the main circulation pipeline. When the valves are reopened after cleaning, the accumulated pollutants will be flushed into the main circulation pipeline with the water flow, causing secondary pollution. Utility Model Content
[0004] This invention provides a cooling tower system to solve the problem of secondary pollution in the main circulation pipeline caused by pollutant retention in the prior art. By transferring the sewage discharge path from the main circulation pipeline to the existing balance pipe of the system, the pollutant discharge path is spatially decoupled from the main circulation water flow, thus fundamentally blocking the path of secondary pollution.
[0005] The cooling tower system provided by this utility model includes:
[0006] At least two cooling towers, with two adjacent cooling towers connected in parallel;
[0007] A balance pipe, one end of which is connected to the cooling tower and the other end of which is connected to an adjacent cooling tower;
[0008] A drain pipe is connected at one end to the balance pipe and at the other end to the drain outlet. In the draining state, the drain pipe is connected to the cooling tower through the balance pipe. In the non-draining state, the drain pipe is disconnected from the balance pipe.
[0009] According to the cooling tower system provided by this utility model, the drain pipe is equipped with a drain valve, which is used to adjust the flow rate in the drain pipe.
[0010] According to the cooling tower system provided by this utility model, the balance pipe is sequentially equipped with a first valve and a second valve;
[0011] The connection between the sewage pipe and the balance pipe is located between the first valve and the second valve.
[0012] According to the cooling tower system provided by this utility model, the sewage pipe is inclined, wherein the inclination angle is α, and the value of α ranges from 5° to 15°.
[0013] According to the cooling tower system provided by this utility model, the inner wall of the sewage pipe is provided with a spiral guide groove along the water flow direction, and the pitch of the guide groove gradually decreases from the connection between the sewage pipe and the balance pipe to the outlet of the sewage pipe.
[0014] The cooling tower system provided by this utility model also includes a filter assembly, which is detachably disposed on the balance pipe and located on the side of the drain valve away from the cooling tower.
[0015] According to the cooling tower system provided by this utility model, the filtration component includes:
[0016] A coarse filter screen is detachably installed on the balance pipe and located on the side of the drain valve away from the cooling tower;
[0017] A fine filter screen is detachably installed on the balance pipe and located on the side of the coarse filter screen away from the drain valve. The mesh diameter of the coarse filter screen is larger than that of the fine filter screen.
[0018] According to the cooling tower system provided by this utility model, a flushing port is provided at the connection between the balance pipe and the drain pipe, and the flushing port is used for flushing and cleaning the drain pipe.
[0019] According to the cooling tower system provided by this utility model, the drain pipe is equipped with a one-way valve, which is located on the side of the drain valve away from the cooling tower.
[0020] According to the cooling tower system provided by this utility model, the drain pipe is provided with a transparent window along its length.
[0021] In the cooling tower system provided by this utility model, when a specific cooling tower enters the cleaning and sewage discharge state, by closing the outlet valve of the main circulation pipe of the corresponding cooling tower and opening the sewage discharge pipe on the balance pipe, the sewage containing sediment can be allowed to directly enter the sewage outlet along the balance pipe, thereby achieving complete isolation between the sewage discharge path and the main circulation pipe at the physical structure level.
[0022] Compared to existing technologies where valve opening and closing leads to pollutant backflow, this invention addresses the issue by shifting the sewage discharge path from the main circulation pipe to the system's existing balancing pipe. This spatially decouples the pollutant discharge path from the main circulation water flow, fundamentally blocking the path to secondary pollution. Furthermore, the balancing pipe maintains its inherent flow balancing function even when not discharging sewage. This dual-mode operation preserves the original flow balancing capability of the parallel cooling tower system while also providing sewage discharge functionality, achieving simultaneous functional integration and optimization. Moreover, the sewage discharge pipe provided by this invention can be directly integrated into existing cooling tower systems, upgrading the functionality of older equipment. This effectively reduces the manufacturing and operating costs of the cooling tower system, improving economic efficiency. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the pipeline connection of the cooling tower system provided in this embodiment of the utility model.
[0025] Figure label:
[0026] 100: Cooling tower; 200: Water inlet pipe; 300: Balance pipe; 310: First valve; 320: Second valve; 330: Third valve; 400: Drain pipe; 410: Drain valve; 500: Drain outlet. Detailed Implementation
[0027] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0028] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to 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 the embodiments of this application based on the specific circumstances.
[0029] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0031] Figure 1 This is a schematic diagram of the pipeline connection of the cooling tower system provided in this embodiment of the utility model.
[0032] See Figure 1 This utility model provides a cooling tower system, which includes at least two cooling towers 100. The two cooling towers 100 are arranged in parallel along the water inlet pipe 200. It should be noted that the number of cooling towers 100 can be three or more. The specific number can be set according to the actual system requirements. The specific structure and working method of the cooling tower 100 can be referred to the prior art, which will not be repeated here.
[0033] The cooling tower system also includes several balancing pipes 300, with one balancing pipe 300 between every two cooling towers 100. The balancing pipes 300 are used to maintain the balance of the water collection trays in the two adjacent cooling towers 100. The cooling tower system also includes several drain pipes 400, with the number of drain pipes 400 being the same as the number of balancing pipes 300. This article uses the two cooling towers 100 shown in the figure as an example for explanation.
[0034] One end of the drain pipe 400 is connected to the balancing pipe 300, and the other end is used to connect to the drain outlet 500 or the sewage treatment tank. In the draining state, the drain pipe 400 is connected to the cooling tower 100 through the balancing pipe 300, and the water in the cooling tower 100 can flow out through the balancing pipe 300 and the drain pipe 400. In the non-draining state, the drain pipe 400 is disconnected from the balancing pipe 300 to maintain the balance of the flow in the two cooling towers 100 by the balancing pipe 300.
[0035] See Figure 1 It is understood that in this embodiment of the present invention, when a specific cooling tower 100 enters the cleaning and sewage discharge state, by closing the outlet valve of the main circulation pipe of the corresponding cooling tower 100 and opening the sewage discharge pipe 400 on the balance pipe 300, the sewage containing sediment can be directly introduced into the sewage discharge port 500 along the balance pipe 300, thereby achieving complete isolation between the sewage discharge path and the main circulation pipe at the physical structure level.
[0036] Compared to the problem of pollutant backflow caused by valve opening and closing in the prior art, this utility model embodiment transfers the sewage discharge path from the main circulation pipe to the existing balance pipe 300 of the system, thereby spatially decoupling the pollutant discharge path from the main circulation water flow and fundamentally blocking the path of secondary pollution.
[0037] Furthermore, the balancing pipe 300 maintains its inherent flow balancing function even in non-drainage states. This dual-mode operation not only preserves the original flow balancing capability of the parallel cooling tower system but also provides it with drainage functionality, achieving simultaneous improvement in functional integration and optimization. Secondly, the drainage pipe 400 provided in this embodiment can be directly integrated into existing cooling tower systems for functional upgrades, effectively reducing the manufacturing and operating costs of the cooling tower system and improving economic efficiency.
[0038] Continue reading Figure 1 In an optional embodiment of this utility model, a drain valve 410 is provided on the drain pipe 400. The drain valve 410 is used to adjust the opening of the drain pipe 400. The drain valve 410 can be a ball valve, gate valve, or butterfly valve, etc., and can be selected according to the actual situation. It should be noted that the number of drain valves 410 can be two or more, and the stability of the drain pipe 400 can be improved through redundant design. It is understood that in the cooling tower system provided by this utility model embodiment, the setting of the drain valve 410 is simple and direct, and existing mature products can be directly adopted, which can effectively reduce the transformation cost of the cooling tower system.
[0039] Continue reading Figure 1In an optional embodiment of this utility model, a first valve 310 and a second valve 320 are provided on the balancing pipe 300, and the connection between the drain pipe 400 and the balancing pipe 300 is located between the first valve 310 and the second valve 320. When draining a specific cooling tower 100, the corresponding first valve 310 or second valve 320 is opened, and the other one is closed to achieve specific draining. In an optional embodiment of this utility model, a third valve 330 can also be provided. The third valve 330 can be located between the first valve 310 and the second valve 320. The third valve 330 can serve as a redundancy design for the first valve 310 and the second valve 320 to ensure the stability of the function of the balancing pipe 300. Specifically, it can be selected adaptively according to the actual situation.
[0040] Understandably, the setting of the first valve 310 and the second valve 320 makes the sewage discharge function of the balance pipe 300 controllable, that is, it can selectively perform sewage discharge treatment on a specific cooling tower 100, which can make the cooling tower system more flexible and thus enable the cooling tower system to meet more operating conditions.
[0041] In an optional embodiment of this utility model, the sewage pipe 400 is inclined with an inclination angle of α, where α ranges from 5° to 15°. For example, α can be selected as 5°, 8°, 10°, 12°, or 15°. It is understood that by inclining the sewage pipe 400, the kinetic energy of the sewage fluid is enhanced by gravitational potential energy, which can give the sewage containing sediment a directional acceleration, effectively alleviating the problem of secondary deposition of particulate matter caused by insufficient flow velocity in traditional horizontal pipes.
[0042] In an optional embodiment of this utility model, a spiral guide groove is provided on the inner wall of the sewage pipe 400 along the water flow direction. The pitch of the spiral guide groove gradually decreases from the connection between the sewage pipe 400 and the balance pipe 300 to the outlet of the sewage pipe 400. It can be understood that the swirling effect formed by the spiral guide groove generates a centrifugal force field, which can cause the denser impurity particles to accumulate on the outside of the pipe wall. The decreasing pitch design makes the swirling intensity gradually increase along the sewage discharge direction, which can realize the dynamic separation of suspended solids and liquid phase and avoid scale buildup on the pipe wall.
[0043] In an optional embodiment of this utility model, a filter assembly is also included. The filter assembly is disposed on the balance pipe 300 and is detachably connected to the balance pipe 300. The filter assembly is located on the side of the drain valve 410 away from the cooling tower 100. It is understood that during use, the filter assembly can intercept large-volume deposits, which can avoid pipe blockage caused by excessive deposits, thereby reducing the difficulty of pipe unblocking and improving the service life of the drain pipe 400.
[0044] In an optional embodiment of this utility model, the filter assembly includes a coarse filter and a fine filter. The coarse filter is detachably disposed within the balance pipe 300 and is located on the side of the drain valve 410 away from the cooling tower 100. The fine filter is also detachably disposed within the balance pipe 300 and is located on the side of the coarse filter away from the drain valve 410. The mesh diameter of the coarse filter is larger than that of the fine filter. It should be noted that the mesh diameters of the coarse and fine filters can be adaptively selected according to actual conditions, and this utility model embodiment does not impose specific limitations on this.
[0045] It is understood that the dual-layer filter structure adopted in this embodiment of the utility model, through the coordinated design of spatial layout and pore size gradient, when water carrying impurities enters the balance pipe 300 from the cooling tower 100 side, this design rationally distributes the impurity interception load to different filtration levels through a graded filtration mechanism, which can avoid excessive load on a single filter and thus improve the service life of the filter.
[0046] In an optional embodiment of this utility model, a flushing port is also provided at the connection between the balance pipe 300 and the drain pipe 400. The flushing port is used to flush and clean the drain pipe 400. Specifically, when it is necessary to clean the drain pipe 400, the flushing port can be opened and the drain pipe 400 can be flushed through the flushing port. In some optional methods, the drain pipe 400 can also be flushed in reverse from the outlet of the drain pipe 400. In this case, the flushing port serves as the outlet of the flushing water.
[0047] It is understood that this utility model constructs a bidirectional reversible pipe self-cleaning channel by adding a flushing port at the connection node between the balance pipe 300 and the drain pipe 400. Different cleaning modes can be activated by controlling the fluid direction, thereby effectively improving the cleaning effect and reducing the cleaning difficulty.
[0048] In an optional embodiment of this utility model, a one-way valve is provided inside the drain pipe 400. The one-way valve is located on the side of the drain valve 410 away from the cooling tower 100. It can be understood that the one-way valve can prevent sewage from flowing back into the balance pipe 300 and the cooling tower 100 in the drain pipe 400. In case of blockage or other accidents downstream of the drain pipe 400, the safety of the balance pipe 300 and the cooling tower 100 can be guaranteed.
[0049] In an optional embodiment of this utility model, the sewage pipe 400 is provided with a transparent window along its length, and the transparent window adopts a double-layer glass structure; it is understood that this setting makes it easier for the operator to observe the situation inside the sewage pipe 400, so that when a blockage occurs, the blockage point can be quickly and accurately located, thereby improving the efficiency of sewage discharge and unblocking.
[0050] It should be noted that the technical solutions in the various embodiments of this utility model can be combined with each other, but the basis for such combination is that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist, that is, it is not within the protection scope of this utility model.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A cooling tower system, characterized in that, include: At least two cooling towers (100) are arranged in parallel, with two adjacent cooling towers (100) connected in parallel; A balance pipe (300) is connected at one end to the cooling tower (100) and at the other end to an adjacent cooling tower (100); A drain pipe (400) is connected at one end to the balance pipe (300) and at the other end to the drain outlet (500). In the draining state, the drain pipe (400) is connected to the cooling tower (100) through the balance pipe (300). In the non-draining state, the drain pipe (400) is disconnected from the balance pipe (300).
2. The cooling tower system according to claim 1, characterized in that, The drain pipe (400) is equipped with a drain valve (410), which is used to adjust the flow rate in the drain pipe (400).
3. The cooling tower system according to claim 2, characterized in that, The balance pipe (300) is provided with a first valve (310) and a second valve (320) in sequence; The connection between the drain pipe (400) and the balance pipe (300) is located between the first valve (310) and the second valve (320).
4. The cooling tower system according to claim 2, characterized in that, The sewage pipe (400) is inclined, wherein the inclination angle is α, and the value of α ranges from 5° to 15°.
5. The cooling tower system according to claim 4, characterized in that, The inner wall of the sewage pipe (400) is provided with a spiral guide groove along the water flow direction. The pitch of the guide groove gradually decreases from the connection between the sewage pipe (400) and the balance pipe (300) to the outlet of the sewage pipe (400).
6. The cooling tower system according to claim 2, characterized in that, It also includes a filter assembly, which is detachably disposed on the balance pipe (300) and located on the side of the drain valve (410) away from the cooling tower (100).
7. The cooling tower system according to claim 6, characterized in that, The filtering component includes: A coarse filter screen is detachably installed on the balance pipe (300) and located on the side of the drain valve (410) away from the cooling tower (100); A fine filter screen is detachably mounted on the balance pipe (300) and located on the side of the coarse filter screen away from the drain valve (410). The mesh diameter of the coarse filter screen is larger than that of the fine filter screen.
8. The cooling tower system according to claim 2, characterized in that, A flushing port is provided at the connection between the balance pipe (300) and the drain pipe (400), and the flushing port is used for flushing and cleaning the drain pipe (400).
9. The cooling tower system according to any one of claims 2 to 8, characterized in that, The drain pipe (400) is equipped with a one-way valve, which is located on the side of the drain valve (410) away from the cooling tower (100).
10. The cooling tower system according to any one of claims 2 to 8, characterized in that, The sewage pipe (400) has a transparent window along its length.