Overflow device and cooling tower

Abstract

The overflow device is provided with an overflow pipe, a pipe inserting piece, a limiting unit and a waterproof cap, the overflow pipe is provided with a pipe inserting opening, the pipe inserting piece is detachably inserted into the overflow pipe through the pipe inserting opening, an overflow gap is formed between the pipe inserting piece and the overflow pipe, and the limiting unit is fixed to the pipe inserting piece and connected with the overflow pipe. The overflow pipe is arranged in the cold water pool of the cooling tower, when the water level of the cold water pool overflows the pipe opening of the overflow pipe, water enters the overflow gap from the pipe opening of the overflow pipe and then flows out, overflow is achieved, the waterproof cap is fixed to the pipe inserting piece and located on the peripheral side of the pipe inserting opening, and the waterproof cap can shield the pipe inserting opening. And therefore, the spraying water of the spraying device can be blocked, the spraying water is prevented from directly entering the overflow pipe, and waste of water resources is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an overflow device and a cooling tower. Background Technology

[0002] Currently, power plant circulating cooling water systems mostly use overflow cooling towers, such as the one with announcement number CN205262243U. The cold water pool is usually built below the spray device. The spray device atomizes the water to be cooled through the nozzles, dispersing the water into very small droplets, and then sprays them evenly onto the packing layer. The water droplets fall evenly into the cold water pool after passing through the packing layer.

[0003] To prevent the cold water level from becoming too high and overflowing, an overflow pipe needs to be installed in the cold water tank. When the cold water level is too high, the cold water can overflow through the overflow pipe.

[0004] Because the overflow pipe of the cold water pool faces upward, some of the water droplets sprayed by the spray device can easily enter the overflow pipe directly from the pipe opening and flow out from the overflow pipe, resulting in water waste. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an overflow device to solve the technical problem that some water droplets from the spray of the cooling tower can easily enter the overflow pipe directly, causing water waste.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model provides an overflow device, comprising:

[0008] The overflow pipe is equipped with an insertion port.

[0009] The insertion fitting is detachably inserted into the overflow pipe via the insertion port, and an overflow gap is formed between the fitting and the overflow pipe;

[0010] A limiting unit, fixed to the insertion tube and connected to the overflow tube, is used to limit the insertion tube; and

[0011] A waterproof cap is fixed to the insertion fitting and located around the insertion port to cover the insertion port.

[0012] In some implementations, the limiting unit includes a plurality of limiting plates, each of which is fixed at intervals to the periphery of the insertion tube, and the end of each limiting plate near the overflow tube abuts against the overflow tube.

[0013] In some implementations, each of the limiting pieces extends to and connects to the waterproof cap.

[0014] In some implementations, each of the limiting pieces has a guide end at the end that abuts against the overflow pipe, and the guide end extends obliquely away from the waterproof cap.

[0015] In some implementations, the end face of the overflow pipe is provided with a fitting port, and each of the limiting pieces is installed in the fitting port.

[0016] In some implementations, the waterproof cap is tilted toward the overflow pipe, and the angle between the waterproof cap and the axis of the overflow pipe is between 50° and 70°.

[0017] In some implementations, guide plates are fixed at intervals around the periphery of the insertion fitting, and the guide plates are slidably connected to the overflow pipe.

[0018] In some implementations, the insertion port is tilted outward toward the overflow pipe to form a funnel-shaped opening.

[0019] In some implementations, the inner side of the insertion tube is provided with cross-shaped support frames.

[0020] Secondly, this utility model provides a cooling tower, including the aforementioned overflow device.

[0021] Compared with the prior art, the overflow device provided by this utility model is equipped with an overflow pipe, a plug fitting, a limiting unit, and a waterproof cap. The overflow pipe is provided with a plug port, and the plug fitting is detachably inserted into the overflow pipe through the plug port, forming an overflow gap between them. The limiting unit is fixed to the plug fitting and connected to the overflow pipe, which can limit the plug fitting. The overflow pipe is installed in the cold water pool of the cooling tower. When the water level of the cold water pool overflows the pipe port, the water enters the overflow gap from the pipe port and then flows out, thus achieving overflow. The waterproof cap is fixed to the plug fitting and located around the plug port. The waterproof cap can block the plug port, thereby blocking the spray water from the spray device and preventing the spray water from directly entering the overflow pipe, thus avoiding the waste of water resources. Attached Figure Description

[0022] Figure 1 This is a front view of the overflow device provided in this embodiment of the utility model;

[0023] Figure 2 It is along Figure 1 Sectional view of line AA in the middle;

[0024] Figure 3 It is along Figure 1 Sectional view along the middle BB line.

[0025] Labels for each item in the figure:

[0026] 10—Overflow pipe; 11—Supply port; 12—Overflow gap

[0027] 13—Matching port; 20—Insertion fitting; 21—Guide plate

[0028] 22—Support frame; 30—Limiting unit; 31—Limiting piece

[0029] 40—Waterproof cap; 311—Flow guide end. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] To address the technical problem in existing cooling towers where some spray water droplets easily enter the overflow pipe, resulting in water waste, this invention provides an overflow device. This overflow device is installed in the cooling tower's cold water tank to allow cold water in the tank to overflow and prevents spray water from entering the overflow pipe.

[0032] like Figure 1 As shown, the overflow device provided in this embodiment of the present invention includes an overflow pipe 10, an insertion fitting 20, a limiting unit 30, and a waterproof cap 40. The overflow pipe 10 is provided with an insertion port 11. The insertion fitting 20 is detachably inserted into the overflow pipe 10 through the insertion port 11, and an overflow gap 12 is formed between the insertion fitting 20 and the overflow pipe 10. The limiting unit 30 is fixed to the insertion fitting 20 and connected to the overflow pipe 10, and is used to limit the insertion fitting 20. The waterproof cap 40 is fixed to the insertion fitting 20 and located on the periphery of the insertion port 11 to cover the insertion port 11.

[0033] Specifically, the overflow device consists of an overflow pipe 10, a fitting 20, a limiting unit 30, and a waterproof cap 40. The overflow pipe 10 has a fitting port 11. The fitting 20 is inserted into the overflow pipe 10 through the fitting port 11, forming an overflow gap 12 between the fitting and the overflow pipe 10. The limiting unit 30 is fixed to the fitting 20 and connected to the overflow pipe 10, limiting the fitting 20. The overflow pipe 10 is installed in the cold water pool of the cooling tower. When the water level in the cold water pool overflows the pipe port of the overflow pipe 10, water enters the overflow gap 12 from the pipe port of the overflow pipe 10 and then flows out, thus achieving overflow. The waterproof cap 40 is fixed to the fitting 20 and located around the fitting port 11. The waterproof cap 40 can block the fitting port 11, thereby blocking the spray water from the spraying device and preventing the spray water from directly entering the overflow pipe 10, thus avoiding waste of water resources. Furthermore, since the insert 20 is detachably inserted into the overflow pipe 10 and can be detachably connected to the overflow pipe 10, the insert 20 can be easily removed and replaced.

[0034] In one embodiment, such as Figure 1 As shown, the insertion port 11 is inclined outward toward the overflow pipe 10 to form a funnel-shaped opening. Specifically, the funnel-shaped opening structure formed by the insertion port 11 being inclined outward toward the overflow pipe 10 facilitates the inflow of external cold water and the overflow of pool water.

[0035] Understandably, the insert fitting 20 can be any structure, such as a rod or pipe, that can be inserted into the overflow pipe 10 through the insertion port 11. The insert fitting 20 can be detachably connected to the overflow pipe 10 through connection methods such as snap-fit ​​or bolt connection.

[0036] In this embodiment, the insertion tube 20 is slidably connected to the overflow pipe 10. The insertion tube 20 can be slid upward to disengage from the overflow pipe 10, thereby facilitating the disassembly, maintenance and replacement of the insertion tube 20.

[0037] To improve the stability of the insertion device 20, in one embodiment, such as Figure 1-3 As shown, guide plates 21 are fixed at intervals around the periphery of the insertion tube 20, and the guide plates 21 are slidably connected to the overflow pipe 10. Specifically, by connecting to the overflow pipe 10, the guide plates 21 can stabilize the insertion tube 20 and prevent it from shaking under the impact of water flow. Furthermore, the guide plates 21 can separate the water flowing into the overflow gap 12, preventing the water from forming a swirling flow at the overflow gap 12, thereby allowing the water to flow out stably.

[0038] In one embodiment, such as Figure 2-3 As shown, the insertion device 20 has a tube structure, and the inner side of the insertion device 20 is provided with cross-arranged support frames 22. Specifically, the support frames 22 can provide support for the insertion device 20 to strengthen the structure of the insertion device 20 and prevent the insertion device 20 from deforming.

[0039] Understandably, the limiting unit 30 can be any structure that can limit the insertion tube 20, such as a bolt that connects the threaded insertion tube 20 and the overflow pipe 10, or a connecting frame that is detachable at both ends and fixed to the insertion tube 20 and the overflow pipe 10.

[0040] In one embodiment, such as Figure 1-2 As shown, the limiting unit 30 includes several limiting pieces 31, each of which is fixed at intervals around the periphery of the insertion tube 20, with one end of each limiting piece 31 near the overflow pipe 10 abutting against the overflow pipe 10. Specifically, the insertion tube 20 is limited by the contact between the limiting piece 31 and the port of the overflow pipe 10. In addition to limiting the insertion tube 20, it also serves as a water flow guide, directing the water flow along a specific path and preventing fluid turbulence and disturbance.

[0041] In one embodiment, each limiting piece 31 extends to and connects to the waterproof cap 40. Specifically, by extending to the waterproof cap 40, the limiting piece 31 can further strengthen the structure of the waterproof cap 40, thereby preventing the waterproof cap 40 from deforming.

[0042] In one embodiment, such as Figure 1 As shown, each limiting plate 31 has a guide end 311 at the end that abuts against the overflow pipe 10. The guide end 311 extends obliquely away from the waterproof cap 40. Specifically, the guide end 311 formed by the limiting plate 31 being obliquely away from the waterproof cap 40 ensures that the end of the limiting plate 31 is located below the opening of the overflow pipe 10. This prevents turbulence from forming at the opening of the overflow pipe 10 by blocking the water below the opening of the overflow pipe 10, thereby maintaining the stability of the water flow.

[0043] To improve the stability of the connection between the overflow pipe 10 and the insertion fitting 20, in one embodiment, such as Figure 1 As shown, the end face of the overflow pipe 10 is provided with a fitting port 13, and each limiting piece 31 is installed in the fitting port 13. Specifically, by fitting the limiting piece 31 into the fitting port 13, the limiting piece 31 can be prevented from driving the insertion pipe 20 to rotate under the impact of the water, thereby achieving the effect of improving the stability of the insertion pipe 20.

[0044] In one embodiment, such as Figure 1 As shown, the outer diameter of the waterproof cap 40 is larger than the diameter of the overflow pipe 10 opening, thus preventing spray water from entering the overflow pipe 10 opening.

[0045] In one embodiment, such as Figure 1 As shown, the waterproof cap 40 is inclined towards the overflow pipe 10, and the angle between the waterproof cap 40 and the axis of the overflow pipe 10 is between 50° and 70°. Specifically, by tilting the waterproof cap 40, it can guide the spray water, allowing the spray water to enter the cold water pool as quickly as possible. By setting the angle of the waterproof cap 40 between 50° and 70°, the water flow velocity of the waterproof cap 40 can be controlled within a stable range, preventing splashing when the water flows down.

[0046] This utility model embodiment also provides a cooling tower, including the aforementioned overflow device. Specifically, by providing this overflow device, the cooling tower can simultaneously allow cold water to overflow from the cold water pool and block the spray water from the spray device, preventing the spray water from directly entering the overflow pipe 10, thereby avoiding waste of water resources.

[0047] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An overflow device, characterized in that, include: The overflow pipe is equipped with an insertion port. The insertion fitting is detachably inserted into the overflow pipe via the insertion port, and an overflow gap is formed between the fitting and the overflow pipe; A limiting unit, fixed to the insertion tube and connected to the overflow tube, is used to limit the insertion tube; and A waterproof cap is fixed to the insertion fitting and located around the insertion port to cover the insertion port.

2. The overflow device according to claim 1, characterized in that, The limiting unit includes several limiting pieces, each of which is fixed at intervals around the periphery of the insertion tube, and the end of each limiting piece near the overflow tube abuts against the overflow tube.

3. The overflow device according to claim 2, characterized in that, Each of the limiting pieces extends to and connects to the waterproof cap.

4. The overflow device according to claim 2, characterized in that, Each of the limiting pieces has a guide end at the end that abuts against the overflow pipe, and the guide end extends at an angle away from the waterproof cap.

5. The overflow device according to claim 2, characterized in that, The end face of the overflow pipe is provided with a fitting port, and each of the limiting pieces is installed in the fitting port.

6. The overflow device according to any one of claims 1-5, characterized in that, The waterproof cap is inclined toward the overflow pipe, and the angle between the waterproof cap and the axis of the overflow pipe is between 50° and 70°.

7. The overflow device according to any one of claims 1-5, characterized in that, The insertion tube is fixed with spaced guide plates on its periphery, and the guide plates are slidably connected to the overflow pipe.

8. The overflow device according to any one of claims 1-5, characterized in that, The insertion port is inclined toward the outside of the overflow pipe so that the insertion port forms a funnel-shaped opening.

9. The overflow device according to any one of claims 1-5, characterized in that, The inner side of the insertion tube is provided with a cross-shaped support frame.

10. A cooling tower, characterized in that, Includes the overflow device as described in any one of claims 1-9.

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