Pump house for high-level water collection device

Abstract

The application relates to the technical field of pump houses, and discloses a pump house for high-position water collecting equipment, wherein the high-position water collecting equipment comprises multiple cooling towers arranged in rows at intervals, two adjacent rows of the cooling towers are arranged oppositely, and air inlets of the two adjacent rows of the cooling towers are arranged oppositely; a wind cylinder, a fan, a water collector, a water distribution system, water spraying filler and a water collecting inclined plate are sequentially arranged in each cooling tower from top to bottom; a water collecting tank is arranged in the interval between two adjacent rows of the cooling towers; the pump house for the high-position water collecting equipment is arranged below the ground, the pump house comprises a water inlet forebay, an underground pump chamber and a water pump arranged in the underground pump chamber, the water inlet forebay comprises a first water pool arranged at the lower part of the water collecting tank and a second water pool arranged at the lower part of the cooling tower, the first water pool is in communication with the water collecting tank in the up-down direction, the first water pool is in communication with the second water pool, and the water suction opening of the water pump is in communication with one side of the first water pool which is away from the second water pool. The application saves the land area of a factory site and relieves the system water flow turbulence.

Description

Technical Field

[0001] This invention relates to the field of pump house technology, and in particular to a pump house for elevated water collection equipment. Background Technology

[0002] With the gradual improvement of power grid construction and the completion and operation of the West-East Gas Pipeline project, which has solved the fuel supply problem for gas turbine power plants, more and more gas turbine power plants are choosing to be built near cities or located directly in industrial parks. This has led to control over the building area of ​​gas turbine power plant sites and increasingly stringent requirements for land use quotas. Mechanical draft cooling towers for similar units occupy approximately 60% of the area of ​​natural draft cooling towers, while also offering advantages such as lower initial investment and shorter construction periods. Therefore, the vast majority of gas turbine power plants currently use mechanical draft cooling towers as the cooling facility for their circulating cooling water systems.

[0003] The main electrical equipment in a circulating cooling water system includes mechanical draft cooling towers and circulating water pumps, which are major energy consumers in power plants. As crucial components of the cold end of the steam turbine, the characteristics of these equipment not only affect energy loss but also directly influence the condenser back pressure, thus impacting the unit's power generation and efficiency. Developing key technologies for mechanical draft cooling towers and circulating water pumps can ensure efficient unit operation while fully implementing the design principles of high efficiency, environmental protection, energy conservation, and consumption reduction.

[0004] like Figure 1 As shown, existing mechanical ventilation cooling towers generally include a duct, fan, water collector, water distribution system, water-spraying packing, and a water collection tank. The process principle of existing technology is as follows: hot water from the condenser is sent into the tower through the circulating water return pipe, flowing from top to bottom through the water distribution zone, packing zone, and rain zone, where it exchanges heat with the counter-flowing air and is cooled before falling into the lower cooling tower water collection tank, completing the cooling water collection process. Because mechanical ventilation cooling towers use high-level water collection equipment, the height between the water distribution system and the bottom of the water-spraying packing is much smaller than the height between the water distribution system and the water surface of the collection tank, reducing the static head of the circulating water pump, power plant power consumption, and operating costs. Therefore, high-level water collection equipment is gradually being widely used in circulating cooling water systems.

[0005] like Figure 2 As shown, in existing technologies, cooling towers typically have a corresponding pump room located perpendicular to the air inlet direction. To reduce the impact of buildings on the air intake of the cooling tower, multiple cooling towers are generally arranged in rows at intervals, with a certain distance maintained between cooling towers and between pump rooms. The cooling tower water collection tank and the inlet pool of the circulating water pump room, as well as the water collection tanks of different cooling towers, are all connected by gravity-flow return channels.

[0006] Because the cooling tower and the pump house keep a certain distance, the cooling tower occupies a large area, and the general layout of the factory is difficult; the water flow direction changes many times from the water collecting pool to the water inlet pool, and the water flow state in the system is disorderly. SUMMARY

[0007] The technical problem solved by the present application is that the cooling tower occupies a large area, and the water flow state in the cooling tower is disorderly.

[0008] In order to solve the above technical problems, the present application provides a pump house for high-level water collecting equipment, which comprises a plurality of cooling towers arranged in rows and intervals, and adjacent two rows of the cooling towers are arranged oppositely, and the air inlets thereof are arranged oppositely; each of the cooling towers is sequentially provided with a wind pipe, a fan, a water collector, a water distribution system, a water spraying filler and a water collecting inclined plate from top to bottom.

[0009] As a preferred scheme, a water collecting tank is arranged in the interval between the adjacent two rows of the cooling towers, the width of the water collecting tank is greater than or equal to 4m, and the water collecting inclined plates of each of the cooling towers of the adjacent two rows are in communication with the water collecting tank; the pump house for the high-level water collecting equipment is arranged below the ground, and the pump house comprises a water inlet pool, an underground pump room and a water pump arranged in the underground pump room, the water inlet pool comprises a first pool arranged at the lower part of the water collecting tank and a second pool arranged at the lower part of the cooling tower, the first pool is in communication with the water collecting tank in the vertical direction, the first pool is in communication with the second pool, and the water suction port of the water pump is in communication with the side of the first pool away from the second pool.

[0010] As a preferred scheme, the water inlet pool is arranged at the middle part below the ground of the two rows of the cooling towers, a guide plate extending from the bottom of the water collecting tank to the opening of the first pool is arranged between the bottom of the left water collecting tank and the opening of the first pool, and a guide plate extending from the bottom of the water collecting tank to the opening of the first pool is arranged between the bottom of the right water collecting tank and the opening of the first pool, and the longitudinal inclination angle of the guide plate is less than or equal to 16 degrees.

[0011] As a preferred scheme, the type of the water pump adopts a horizontal centrifugal pump or a vertical volute pump.

[0012] As a preferred scheme, there is no self-flowing backwater channel between the cooling tower and the pump house.

[0013] As a preferred scheme, the top of the pump house is flush with the bottom of the cooling tower, and the top of the pump house is higher than the outer field elevation of the cooling tower by 0.3m.

[0014] As a preferred scheme, the direction of the opening of the water collecting tank is opposite to the air inlet, and the air inlet is arranged parallel to the main wind direction in summer.

[0015] As a preferred solution, one side of the pump house is reserved for maintenance site, and a maintenance lane is arranged on the maintenance site; a glass fiber reinforced plastic grating platform is arranged at the bottom of the cooling tower at the upper part of the underground pump chamber, and a maintenance stairway for entering the underground pump chamber is reserved on the glass fiber reinforced plastic grating platform, and the maintenance stairway is connected with the maintenance site and the glass fiber reinforced plastic grating platform at one side of the underground pump chamber.

[0016] As a preferred solution, a cable bridge is arranged on the side wall of the cooling tower, and cables of equipment in the pump house are arranged on the cable bridge; and the cable bridge is arranged on the side wall of the cooling tower at an interval between two cooling towers.

[0017] As a preferred solution, a water inlet main pipe channel is reserved between the outer wall of the pump house and the outer structural column of the cooling tower, and a water inlet main pipe for connecting the water distribution system of each cooling tower is arranged in the water inlet main pipe channel.

[0018] As a preferred solution, the length of each row of cooling towers is less than or equal to 8:1 of the width of each cooling tower.

[0019] As a preferred solution, the width of the water inlet forebay is greater than or equal to 3.5 times the diameter of the water suction horn of the pump house, and the distance from the center of the water suction horn of the pump house to the bottom of the water inlet forebay is greater than or equal to 1.3 times the diameter of the water suction horn of the pump house.

[0020] The pump house for the high-position water collecting equipment has the beneficial effects that compared with the prior art, the high-position water collecting equipment comprises a plurality of cooling towers arranged in rows and at intervals, two adjacent rows of the cooling towers are arranged oppositely, and air inlets of the two adjacent rows of the cooling towers are arranged oppositely; the oppositely arranged two adjacent rows of the cooling towers can reduce the difficulty of the layout of a factory site, and the oppositely arranged air inlets make the two adjacent rows of the cooling towers share a water collecting tank, thereby improving the utilization rate of the upper space of the cooling tower. The cooling tower is sequentially provided with a wind pipe, a fan, a water collector, a water distribution system, water spraying filler and a water collecting inclined plate from top to bottom. Hot water entering the cooling tower is distributed by the water distribution system, contacts cold air at the water spraying filler to exchange heat and generate steam, the steam volatilizes to take away heat, is discharged to the atmosphere through the wind pipe and the fan, and the cooled water falls to the water collecting tank through the water collecting inclined plate, so that the cooling process of the cooling tower is completed, the effect of absorbing heat and reducing water temperature is achieved. A water collecting tank is arranged in the interval between the two adjacent rows of the cooling towers, the width of the water collecting tank is greater than or equal to 4 m, and the water collecting inclined plates of the two adjacent rows of the cooling towers are connected with the water collecting tank; the two adjacent rows of the cooling towers share one water collecting tank, so that the land area occupied by the cooling tower can be saved, the water collecting tank is arranged above the ground to reduce the height between the water distribution system and the water collecting inclined plate, thereby reducing the static lift of the circulating water pump, improving the energy-saving effect of the pump set, and reducing the noise of the falling cooling water. The pump house for the high-position water collecting equipment is arranged below the ground, the pump house comprises a water inlet forebay, an underground pump chamber and a water pump arranged in the underground pump chamber; the pump house is arranged below the ground, the lower space of the cooling tower is utilized, the air inlet of the cooling tower is not disturbed, the site is fully utilized, and the effect of saving land is achieved. The water inlet forebay comprises a first water tank arranged at the lower part of the water collecting tank and a second water tank arranged at the lower part of the cooling tower, the first water tank is in communication with the water collecting tank in the up-down direction, the first water tank is in communication with the second water tank, and the water suction port of the water pump is in communication with one side of the first water tank away from the second water tank; the water inlet forebay can store excess cooling water and plays a regulating role when the flow of the cooling tower changes. The water suction port of the water pump is in communication with one side of the first water tank away from the second water tank, so that the effect of smoothing and diffusing water flow is achieved, good conditions are provided for the water pump to take water, and the water flow turbulence in the system is effectively improved.

[0021] Under the premise of not affecting the cooling effect of the cooling tower, the upper space of the cooling tower is fully utilized, two rows of the cooling towers with oppositely arranged air inlets are arranged, and a water collecting tank shared by the two rows of the cooling towers is arranged; the lower space of the cooling tower is fully utilized, and an underground pump house is arranged, so that the land area of the factory site is saved, the utilization rates of the upper and lower spaces of the cooling tower are improved, and the layout of the general plane of the factory site is facilitated. The water collecting tank, the water suction forebay and the pump house are redesigned in the application, the water flow turbulence in the system is effectively reduced, the safety and reliability of equipment operation are improved, the amount of civil engineering and the initial investment of the project are reduced. The heat exchange air inlet channel of the high-pressure motor of the circulating water pump is combined with the cold air inlet channel of the cooling tower, the comprehensive cooling efficiency is improved, and the energy-saving effect is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a cross-sectional view of a cooling tower in the prior art;

[0023] Figure 2 is a plan layout of a cooling tower and a pump house in the prior art;

[0024] Figure 3 is a cross-sectional view of a pump house for a high-level water collecting device according to an embodiment of the present application;

[0025] Figure 4 is a plan layout of a pump house for a high-level water collecting device according to an embodiment of the present application;

[0026] Figure 1 in which, 101, a wind tube; 102, a fan; 103, an electric machine; 104, a water collector; 105, a water distribution system; 106, water spraying fillers; 107, a water collecting pool; 108, a self-flowing backwater ditch;

[0027] Figure 2 in which, 201, a cooling tower; 202, a water suction pre-pool; 203, a pump house; 204, a pump chamber;

[0028] Figure 3 in which, 31, a cooling tower; 311, a wind tube; 312, a fan; 313, a water collector; 314, a water distribution system; 315, water spraying fillers; 316, a water collecting inclined plate; 32, a cable bridge; 33, a water collecting tank; 34, a pump house; 341, a second water pool; 342, a first water pool; 343, a water pump; 344, an underground pump chamber;

[0029] Figure 4 in which, 401, a water inlet mother pipe; 402, a flow guide plate. DETAILED DESCRIPTION

[0030] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be understood that the terms "first", "second", and the like are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information.

[0032] As Figure 3 , 4 shown, the embodiment of the present application preferably comprises a pump house for high-level water collecting equipment, which comprises a plurality of cooling towers 31 arranged in rows at intervals, and adjacent two rows of the cooling towers 31 are arranged opposite to each other, and the air inlets thereof are arranged opposite to each other; the ratio of the length of each row of the cooling towers 31 to the width of each cooling tower 31 is less than or equal to 8:1. Each of the cooling towers is sequentially provided from top to bottom with a wind cylinder 311, a fan 312, a water collector 313, a water distribution system 314, a water spraying filler 315, and a water collecting inclined plate 316.

[0033] The working principle of the cooling tower is to use water as a circulating coolant, to use hot water to contact with cold air flow to exchange heat and generate steam, and to volatilize the steam to take away heat and discharge it into the atmosphere, thereby achieving the effect of absorbing heat and reducing water temperature. The water distribution system 314 can transport and distribute the circulating water into the cooling tower; the water spraying filler 315 increases the contact area and prolongs the contact time of water and air, so that the heat and humidity exchange of water and air is more sufficient; the water collecting inclined plate 316 can guide the cooled circulating water into the water collecting tank.

[0034] The space between the adjacent two rows of the cooling towers 31 is provided with a water collecting tank 33, and the width of the water collecting tank 33 is greater than or equal to 4m. The water collecting inclined plate 316 of each of the cooling towers 31 of the adjacent two rows is in communication with the water collecting tank 33, and the water collecting tank 308 is arranged above the ground. And the cooling tower 31 and the pump house 34 are not provided with a self-flowing backwater ditch, which can reduce the number of changes of water flow direction, save engineering investment, and reduce the scope of construction operation.

[0035] In the prior art, the water collecting pool is arranged at the bottom of the cooling tower in a ground type, the height from the water distribution system to the water surface of the water collecting pool is much higher than the height from the water distribution system to the bottom of the water collecting slope, the static lift of the circulating water pump is high, the energy saving effect of the pump set is poor, the power consumption of the unit is high, and the operation cost is high. The water collecting tank 33 is arranged in the interval between the two rows of adjacent cooling towers 31, the height from the water distribution system 314 to the water surface of the water collecting tank 33 is reduced, the static lift of the circulating water pump 343 is reduced, the energy saving effect of the pump set is enhanced, the power consumption of the unit is reduced, and the operation cost is reduced.

[0036] The height of the water distribution system to the water collecting pool in the prior art also affects the noise of the system operation. The main source of noise of the cooling tower in the prior art is the water spray noise generated by the impact of the falling cooling water on the water in the water collecting pool. The higher the free falling height of the cooling water, the greater the noise generated. Therefore, the investment in noise control measures is increased, the operation energy consumption of the cooling tower is increased, and the cooling effect is reduced. The ground type water collecting tank 33 is adopted, the height from the water distribution system 314 to the water surface of the water collecting tank 33 is reduced, the free falling height of the cooling water is reduced, the water spray noise and the operation energy consumption of the cooling tower 31 are effectively reduced, the investment in noise control measures is reduced, and the cooling effect is enhanced.

[0037] The pump house 34 for the high-position water collecting equipment is arranged below the ground, the pump house 34 comprises a water inlet forebay, an underground pump chamber 344 and a water pump 343 arranged in the underground pump chamber 344, the water inlet forebay is a pressure-bearing type water inlet forebay, and the water pump 343 is a horizontal centrifugal pump or a vertical volute pump. The pump house 34 is arranged below the ground, does not interfere with the air inlet of the cooling tower, can fully utilize the site, save the land area, and reduce the difficulty of the layout of the plant plane. The total land area of the present application is only 48% of that in the prior art.

[0038] The water inlet forebay comprises a first water pool 342 arranged at the lower part of the water collecting tank 33 and a second water pool 341 arranged at the lower part of the cooling tower 31, the first water pool 342 is in communication with the water collecting tank 33 in an up-down mode, the first water pool 342 is in communication with the second water pool 341, and the suction port of the water pump 343 is in communication with one side of the first water pool 342 away from the second water pool 341.

[0039] In the prior art, the water flow direction changes multiple times in the whole journey from the water collecting pool to the water inlet pool, the water flow state in the system is disorderly, cavitation is prone to occur in the operation process of the circulating water pump, and the safety reliability is low.The water inlet pool is arranged, the water inlet pool can store the cooling water falling from the cooling tower 31, the effect of adjusting the water flow is achieved, so that the water flow is smooth and diffused, the water flow is uniform, the water suction condition of the water pump 343 is good, the water pump efficiency is improved;The water inlet pool is arranged, and the self-flowing backwater ditch is not arranged, the number of times of changing the water flow direction is reduced, the water flow state in the system is improved, the phenomenon of cavitation in the operation process of the circulating water pump is reduced, and the safety reliability is improved.

[0040] The present application optimizes the size of the water inlet pool and the pump house under the premise of ensuring the safety of the water pump, in combination with the arrangement of the cooling tower main body structure column, the width of the water inlet pool is greater than or equal to 3.5 times the diameter of the water suction horn of the pump house 34, and the distance from the center of the water suction horn of the pump house 34 to the bottom of the water inlet pool is greater than or equal to 1.3 times the diameter of the water suction horn of the pump house 34.

[0041] The water collecting pool in the prior art is generally 2m deep, when a large area of water pool is arranged, anti-seepage measures need to be increased to avoid seepage water from soaking the foundation, the engineering investment is large, and the construction difficulty is high;And the water pump water suction pool and the pump chamber in the prior art are deep, the construction danger level is high, and the difficulty is great.Compared with the prior art, the ground type water collecting tank 33 is arranged, the contact area of the ground type water collecting tank 33 with the foundation is reduced, the influence of the seepage water of the water collecting tank 33 on the foundation can be reduced;The size of the water inlet pool and the pump house is optimized, the danger degree and difficulty of construction are reduced, and the engineering investment is reduced.

[0042] The water inlet pool is arranged in the middle below the ground of the two rows of cooling towers 31, the bottom of the left water collecting tank 33 and the opening of the first pool 342, and the bottom of the right water collecting tank 33 and the opening of the first pool 342 are all provided with a guide plate 402 extending downward from the bottom of the water collecting tank 33 to the opening of the first pool 342, the longitudinal inclination angle of the guide plate 402 is less than or equal to 16 degrees, the guide plate 402 connects the inner bottom of the first pool 342 and the water collecting tank 33, guides the water flow direction, and effectively relieves the water flow turbulence.

[0043] The top of the pump house 34 is flush with the bottom of the cooling tower 31, and the top of the pump house 34 is 0.3m higher than the outer field elevation of the cooling tower 31, which can prevent the influence of the field rainwater on the pump house 34, and does not affect the passage.

[0044] The direction of the opening of the water collecting tank 33 is opposite to the air inlet, and the air inlet is parallel to the summer dominant wind direction.

[0045] The pump house 34 is provided with a maintenance site on one side, and a maintenance lane is arranged on the maintenance site; a glass steel grating platform is arranged at the bottom of the cooling tower 31 on the upper portion of the underground pump chamber 344, and a maintenance staircase for entering the underground pump chamber 344 is reserved on the glass steel grating platform; the maintenance staircase is connected with the maintenance site and the glass steel grating platform on one side of the underground pump chamber 344, so that the subsequent inspection and maintenance are facilitated.

[0046] The cable bridge 32 is arranged on the side wall of the cooling tower 31, and the cables of the equipment of the pump house 34 are arranged on the cable bridge 32; the cable bridge 32 is arranged on the side wall of the cooling tower 31 at the interval between two cooling towers 31, so that the cable trench and other civil engineering projects are reduced, the engineering cost is saved, and the construction period is shortened.

[0047] The water inlet mother pipe channel is reserved between the outer wall of the pump house 34 and the external structural column of the cooling tower 31, and the water inlet mother pipe 401 connected with the water distribution system 314 of each cooling tower 31 is arranged in the water inlet mother pipe channel; the water inlet mother pipe 401 is connected with the water distribution system 314 for water supply, so that the buried depth of the circulating water pipe is reduced, and the construction engineering quantity and the land area are reduced.

[0048] The pump house in the prior art must use mechanical exhaust, especially in the hot and humid areas in the south, the cooling effect of the circulating pump motor is poor, and the energy-saving effect of the equipment is poor. In the present application, the pump house 34 is not provided with a mechanical exhaust system, the heat exchange air inlet channel of the circulating water pump high-voltage motor is combined with the cold air inlet channel of the cooling tower 31, the fresh cold air is forcibly sucked into the air inlet of the mechanical cooling tower 31, the circulating water pump high-voltage motor is directly cooled, the comprehensive cooling efficiency is improved, the energy-saving effect is remarkable, and the engineering investment is saved.

[0049] The working process of the present application is as follows: Figure 3 、 Figure 4 As shown in the figure, the hot water from the condenser is sent into the tower through the water inlet mother pipe, and is cooled by the water distribution system 314 and the rainwater filling material 315 from top to bottom, and then falls onto the surface of the water collecting inclined plate 316, and then flows into the ground type water collecting tank 33, so as to complete the high position collection process of the cooling water. After the cooling water is collected, the water pump 343 is used to pump the cooling water to the condenser.

[0050] In summary, the embodiment of the present application provides a pump house for high-level water collecting equipment, which makes full use of the bottom site of the cooling tower, arranges the underground pump house and the water inlet forebay, saves the land area of the plant site, and is beneficial to the general layout of the plant site; the arrangement of the water collecting tank, the water inlet forebay and the pump house is redesigned, so that the water inlet forebay can play a regulating role when the flow in the cooling tower changes, the effect of smooth and diffusing water flow is achieved, good conditions are provided for water pump water intake, and the water flow turbulence in the system is effectively improved. The equipment has high safety and reliability, low engineering cost, and remarkable energy-saving effect.

[0051] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A pump house for high-level water collecting equipment, the high-level water collecting equipment comprising a plurality of cooling towers (31) arranged in rows, two adjacent rows of the cooling towers (31) being arranged oppositely and air inlets of the two adjacent rows being arranged oppositely. Each of the cooling towers is sequentially provided from top to bottom with a wind cylinder (311), a fan (312), a water collector (313), a water distribution system (314), a water spraying filler (315), and a water collecting slope (316). A water collecting tank (33) is arranged in a space between two adjacent rows of the cooling towers (31), the water collecting tank (33) is arranged above the ground, a width of the water collecting tank (33) is greater than or equal to 4 m, and the water collecting slope (316) of each of the cooling towers (31) in the two adjacent rows is in communication with the water collecting tank (33). The pump house (34) for the high-level water collecting equipment is arranged below the ground, the pump house (34) comprises a water inlet forebay, an underground pump chamber (344), and a water pump (343) arranged in the underground pump chamber (344), the water inlet forebay comprises a first water pool (342) arranged at a lower part of the water collecting tank (33) and a second water pool (341) arranged at a lower part of the cooling tower (31), the first water pool (342) is in communication with the water collecting tank (33) in a vertical direction, the first water pool (342) is in communication with the second water pool (341), and a water suction port of the water pump (343) is in communication with a side of the first water pool (342) away from the second water pool (341). The water inlet forebay is arranged at a middle part of the two rows of the cooling towers (31) below the ground, a guide plate (402) extending from a bottom of the water collecting tank (33) to an opening of the first water pool (342) in a downward direction is arranged between the bottom of the water collecting tank (33) and the opening of the first water pool (342) on a left side, and a guide plate (402) extending from a bottom of the water collecting tank (33) to an opening of the first water pool (342) in a downward direction is arranged between the bottom of the water collecting tank (33) and the opening of the first water pool (342) on a right side, a longitudinal inclination angle of the guide plate (402) is less than or equal to 16 degrees. There is no self-flowing backwater channel between the cooling tower (31) and the pump house (34).

2. The pump house for high-level water collecting equipment according to claim 1, characterized in that: A type of the water pump (343) is a horizontal centrifugal pump or a vertical volute pump.

3. The pump house for elevated water collecting equipment according to claim 1, characterized in that: A top of the pump house (34) is flush with a bottom of the cooling tower (31), and the top of the pump house (34) is 0.3 m higher than an external field elevation of the cooling tower (31).

4. The pump house for elevated water collecting equipment according to claim 1, wherein: An opening direction of the water collecting tank (33) is opposite to the air inlet, and the air inlet is arranged in parallel to a main wind direction in summer.

5. The pump house for elevated water collecting equipment according to claim 1, characterized in that: A maintenance site is reserved on one side of the pump house (34), and a maintenance lane is arranged on the maintenance site. A glass fiber reinforced plastic grating platform is arranged at the bottom of the cooling tower (31) at an upper part of the underground pump chamber (344), a maintenance staircase for entering the underground pump chamber (344) is reserved on the glass fiber reinforced plastic grating platform, and the maintenance staircase connects the maintenance site on one side of the underground pump chamber (344) and the glass fiber reinforced plastic grating platform.

6. The pump house for elevated water collection apparatus of claim 1, wherein: The side wall of the cooling tower (31) is provided with a cable bridge (32), and the cables of the equipment in the pump house (34) are arranged on the cable bridge (32); the cable bridge (32) is arranged on the side wall of the cooling tower (31) at an interval between two cooling towers (31).

7. The pump house for elevated water reservoirs according to claim 1, characterized in that: A water inlet main pipe passage is reserved between the outer wall of the pump house (34) and the external structure column of the cooling tower (31), and a water inlet main pipe (401) in communication with the water distribution system (314) of each cooling tower (31) is arranged in the water inlet main pipe passage.

8. The pump house for elevated water collection apparatus of claim 1, wherein: The length of each row of the cooling tower (31) is less than or equal to 8:1 of the width of each cooling tower (31).

9. The pump house for elevated water collecting equipment according to claim 1, characterized in that: The width of the water inlet forebay is greater than or equal to 3.5 times the diameter of the water suction horn of the pump house (34), and the distance from the center of the water suction horn of the pump house (34) to the bottom of the water inlet forebay is greater than or equal to 1.3 times the diameter of the water suction horn of the pump house (34).

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