Overflow structure of high-level water collection cooling tower with water body energy dissipation function

Abstract

The utility model provides an overflow structure of a high-level water-collecting cooling tower with a water body energy dissipation function, which comprises a central water collecting tank arranged in the center of the high-level water-collecting cooling tower; the overflow weir is arranged in the central water collecting tank, the overflow weir further comprises a weir cylinder, the weir cylinder is arranged at the top of the central water collecting tank, an opening is formed in the top of the weir cylinder, the height of the weir cylinder is lower than that of the wall of the central water collecting tank, and a water outlet is further formed in the bottom of the weir cylinder; the energy dissipation well is communicated with the overflow weir and extends to the bottom of the high-level water collection cooling tower in the height direction, the energy dissipation well further comprises an energy dissipation vertical shaft, and the energy dissipation vertical shaft is communicated with the water outlet; and one end of the energy dissipation plate is arranged on the inner side wall of the energy dissipation vertical shaft. By arranging the overflow weir and the energy dissipation well, the problem of turning over of the central water collecting tank is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-position water collection cooling towers, in particular to an overflow structure of a high-position water collection cooling tower with a water body energy dissipation function. Background Art

[0002] At present, high-level water collection cooling towers are widely used in large-capacity thermal power units. The working principle of high-level water collection cooling towers is: hot water enters the water distribution device through the central shaft and is sprayed through the nozzle. When the water flows through the filler, it exchanges heat with the air and transfers the heat of the water to the atmosphere; the cooled circulating water is collected by the water collection inclined plate and enters the U-shaped water collection tank and finally flows into the central water collection tank, and then is sent to the condenser through the circulating water pump to cool the turbine exhaust steam.

[0003] A central water collection tank is set inside the high-level water collection cooling tower. The high water head in the central water collection tank is used to reduce the head of the circulating water pump, thereby achieving the purpose of energy saving and consumption reduction.

[0004] When the circulating water level in the central water collection tank is too high, the tank may overturn. Utility Model Content

[0005] The purpose of the utility model is to address the defects of the prior art and provide an overflow structure of a high-level water collection cooling tower with a water energy dissipation function. The problem of central water collection tank overturning is solved by arranging an overflow weir and an energy dissipation well. At the same time, an energy dissipation plate is arranged in the energy dissipation well to avoid the problem caused by excessive impact force when the water falls.

[0006] The utility model provides an overflow structure of a high-position water-collecting cooling tower with a water body energy dissipation function, comprising: a central water collecting trough, the central water collecting trough is arranged at the center of the high-position water-collecting cooling tower; an overflow weir, the overflow weir is arranged in the central water collecting trough, the overflow weir further comprises: a weir tube, the weir tube is arranged at the top of the central water collecting trough, the top of the weir tube is open and the height is lower than the trough wall of the central water collecting trough, and the bottom of the weir tube is also provided with a drainage port; an energy dissipation well, the energy dissipation well is connected with the overflow weir and extends to the bottom of the high-position water-collecting cooling tower in the height direction, the energy dissipation well further comprises: an energy dissipation vertical shaft, the energy dissipation vertical shaft is connected with the drainage port; an energy dissipation plate, one end of the energy dissipation plate is arranged on the inner side wall of the energy dissipation vertical shaft.

[0007] Furthermore, the overflow weir also includes: a column, which is vertically arranged at the top end of the side wall of the weir tube; and a side plate, which is arranged on the outside of the column to prevent water from splashing into the overflow weir.

[0008] Furthermore, the overflow weir also includes: a weir top cover plate, and the weir top cover plate is arranged on the top of the column.

[0009] Furthermore, the overflow weir also includes: a trash rack, and the trash rack is arranged at the drain outlet.

[0010] Furthermore, the overflow weir also includes: a bottom slope, which is arranged at the inner bottom of the weir tube and is used to guide water to flow into the energy dissipation shaft.

[0011] Furthermore, the overflow weir also includes: a support beam, which is arranged at the bottom end of the weir tube, and the support beam is used to erect the weir tube on the top of the central water collection tank.

[0012] Furthermore, the energy dissipation shaft is buried inside the high-position water collection cooling tower. Still further, the energy dissipation shaft further includes: a connecting pipe, one end of which is connected to the bottom end of the energy dissipation shaft and the other end of which passes through the side wall of the high-position water collection cooling tower and is connected to the downstream pipeline.

[0013] Furthermore, a plurality of the energy dissipation panels are alternately arranged on the inner side wall of the energy dissipation shaft.

[0014] Furthermore, it also includes a water collecting tank, which is located above the central water collecting tank and is used to collect cooling water and flow it into the central water collecting tank.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting up overflow troughs and energy dissipation wells, the water in the central water collection tank is discharged in time, the water level in the central water collection tank is lowered, and the pool is prevented from overturning.

[0017] 2. The energy dissipation plate greatly eliminates the impact force of water when it falls in the energy dissipation well, preventing the energy dissipation well from being damaged and the water flow in the energy dissipation well from impacting the downstream pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 Side view of

[0020] Figure 3 for Figure 1 Top view of the .

[0021] Figure numerals: 1-central water collection tank; 2-overflow weir; 21-weir tube; 211-drainage outlet; 22-column; 23-side plate; 24-weir top cover plate; 25-trash rack; 26-bottom slope; 27-support beam; 3-energy dissipation well; 31-energy dissipation shaft; 32-energy dissipation plate; 33-connecting pipe; 4-water collection tank. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] A high-position water collection cooling tower overflow structure with water body energy dissipation function, comprising:

[0024] The central water collecting tank 1 is arranged in the center of the high-position water collecting cooling tower.

[0025] The overflow weir 2 is arranged in the central water collecting tank 1, and the overflow weir 2 also includes: a weir tube 21, which is arranged at the top of the central water collecting tank 1, and the top of the weir tube 21 is open and the height is lower than the tank wall of the central water collecting tank 1. When the water in the central water collecting tank 1 overflows the top of the weir tube 21, the water will flow into the weir tube 21, and the weir tube 21 also has a drain port 211, and the drain port 211 is located at the bottom of the weir tube 21; a column 22, which is vertically arranged at the top of the side wall of the weir tube 21; a side plate 23, which is arranged on the outside of the column 22, and the side plate 23 is used for adjusting the height of intercepted water to prevent water from splashing into the overflow weir 2; a weir top cover plate 24, which is arranged at the top of the column 22 to prevent foreign matter from entering; a trash rack 25, which is arranged at the drain outlet 211 to intercept foreign matter; a bottom slope 26, which is arranged at the bottom of the inner side of the weir tube 21 to guide water to flow into the energy dissipation shaft 31, with one end of the bottom slope 26 being higher than the other end, and one end of the bottom being located at the drain outlet 211; a support beam 27, which is arranged at the bottom end of the weir tube 21, and is used to erect the weir tube 21 on the top of the central water collection tank 1.

[0026] An energy dissipation well 3, which is connected to the overflow weir 2 and extends to the bottom of the high-level water collection cooling tower in the height direction. The energy dissipation well 3 also includes: an energy dissipation shaft 31, which is connected to the drain port 211 and is buried inside the high-level water collection cooling tower; an energy dissipation plate 32, one end of which is arranged on the inner side wall of the energy dissipation shaft 31, but does not block the channel of the energy dissipation shaft 31 to facilitate the passage of water. A plurality of energy dissipation plates 32 are alternately arranged left and right in sequence, which means that the left end of the previous energy dissipation plate 32 is arranged on the inner side wall of the energy dissipation shaft 31, and the right end of the next energy dissipation plate 32 is arranged on the inner side wall of the energy dissipation shaft 31. The impact force of the water body is greatly weakened by the alternating arrangement; a connecting pipe 33, one end of which is connected to the bottom end of the energy dissipation shaft 31 and the other end passes through the side wall of the high-level water collection cooling tower and is connected to the downstream pipeline, so that the water body enters the water circulation system.

[0027] The water collecting tank 4 is located above the central water collecting tank 1 and is used to collect cooling water and flow it into the central water collecting tank 1 .

[0028] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A high-level water collection cooling tower overflow structure with water body energy dissipation function, characterized in that: include: A central water collecting tank (1), wherein the central water collecting tank (1) is arranged in the center of the high-position water collecting cooling tower; An overflow weir (2), the overflow weir (2) being arranged in the central water collecting tank (1), the overflow weir (2) further comprising: a weir tube (21), the weir tube (21) being arranged at the top of the central water collecting tank (1), the top of the weir tube (21) being open and having a height lower than the tank wall of the central water collecting tank (1), and the bottom of the weir tube (21) also having a drainage port (211); An energy dissipation well (3), the energy dissipation well (3) is connected to the overflow weir (2) and extends in the height direction to the bottom of the high-position water collection cooling tower, and the energy dissipation well (3) also includes: An energy dissipation shaft (31), the energy dissipation shaft (31) being in communication with the drainage port (211); An energy dissipation plate (32), one end of which is arranged on the inner side wall of the energy dissipation shaft (31).

2. The overflow structure of a high-level water collection cooling tower with water body energy dissipation function according to claim 1 is characterized in that: The overflow weir (2) further comprises: A column (22), wherein the column (22) is vertically arranged at the top end of the side wall of the weir tube (21); A side plate (23), wherein the side plate (23) is arranged outside the column (22), and the side plate (23) is used to prevent water from splashing into the overflow weir (2).

3. The overflow structure of a high-position water collection cooling tower with water body energy dissipation function according to claim 2 is characterized in that: The overflow weir (2) further comprises: A weir top cover plate (24), wherein the weir top cover plate (24) is arranged on the top of the column (22).

4. The overflow structure of a high-position water collection cooling tower with water body energy dissipation function according to claim 1, characterized in that: The overflow weir (2) further comprises: A trash rack (25), wherein the trash rack (25) is arranged at the drain outlet (211).

5. The overflow structure of a high-position water collection cooling tower with water body energy dissipation function according to claim 1, characterized in that: The overflow weir (2) further comprises: A bottom slope (26) is provided at the inner bottom of the weir tube (21) and is used to guide water to flow into the energy dissipation shaft (31).

6. The overflow structure of a high-level water collection cooling tower with water energy dissipation function according to claim 1, characterized in that: The overflow weir (2) further comprises: A support beam (27), wherein the support beam (27) is arranged at the bottom end of the weir tube (21), and the support beam (27) is used to erect the weir tube (21) on the top of the central water collecting tank (1).

7. The overflow structure of a high-position water collection cooling tower with water body energy dissipation function according to claim 1, characterized in that: The energy dissipation shaft (31) is buried inside the high-position water collection cooling tower.

8. The overflow structure of a high-level water collection cooling tower with water energy dissipation function according to claim 7, characterized in that: The energy dissipation well (3) further comprises: A connecting pipe (33), one end of which is connected to the bottom end of the energy dissipation shaft (31) and the other end of which passes through the side wall of the high-position water collection cooling tower and is connected to a downstream pipeline.

9. The overflow structure of a high-level water collection cooling tower with water body energy dissipation function according to claim 1, characterized in that: A plurality of the energy dissipation plates (32) are alternately arranged on the inner side wall of the energy dissipation shaft (31) on the left and right sides.

10. The overflow structure of a high-position water collection cooling tower with water body energy dissipation function according to claim 1, characterized in that: It also comprises a water collecting tank (4), which is located above the central water collecting tank (1) and is used to collect cooling water and flow it into the central water collecting tank (1).

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