Potential energy recovery power generation system of water tank flow-collecting type cooling tower

Abstract

The utility model discloses a water tank flow collecting type cooling tower potential energy recovery power generation system which comprises a cooling tower and a high-position water collecting device in the cooling tower, the water discharging end of the high-position water collecting device is opposite to branch water collecting tanks below, the water discharging ends of the multiple branch water collecting tanks are opposite to a tank opening of a main water tank, and the main water tank communicates with a power generation drainage pipe. And the power generation drainage pipe is communicated with a hydro-generator outside the cooling tower. The device has the beneficial effects that water flow formed by water curtains in a rain area can be efficiently collected; the water flow surface in the branch water collecting tank is smoothly connected into the main water tank, so that more water flow potential energy is collected; under the adverse factors of long-term water flow vibration and differential settlement, the influence of overflow water in the water tank is reduced under the accident working condition of excessive water inflow; the cost is saved; the durability is realized.

Description

Technical Field

[0001] The present application belongs to the field of energy conservation, and specifically relates to a water tank collecting cooling tower potential energy recovery power generation system, which recovers the gravitational potential energy of the water curtain in the rain area of ​​the cooling tower (including natural ventilation cooling tower and mechanical ventilation cooling tower) through a high-level water collecting device and a branch water tank, and collects and guides the water through the main water tank to the power generation device for power generation, which can save energy and has economic benefits. Background Art

[0002] Conventional mechanical ventilation cooling towers (mechanical towers) do not have circulating water rain area potential energy recovery devices (high-level water collection devices and branch water collection tanks). There is no need to recover the gravity potential energy of the water curtain in the rain area below the mechanical ventilation cooling tower filler. There is no potential energy recovery device and no main water tank. It can only perform water cooling, resulting in a waste of potential energy.

[0003] Currently, through the high-level water collection device and the branch water collection tank, it is possible to recover the gravitational potential energy of the water curtain in the rain area below the filler of the mechanical ventilation cooling tower. However, how to more efficiently collect the water flow formed by the water curtain in the rain area; how to connect the water surface in the branch water collection tank to the main water tank to collect more water flow potential energy; how to effectively connect with the branch water collection tank, especially under the adverse factors of long-term water flow vibration and uneven sedimentation; how to reduce the impact of water overflow outside the tank under the accident condition of excessive water inflow, etc., are the technical problems that need to be solved at present. Utility Model Content

[0004] The purpose of the present application is to provide a water tank collecting cooling tower potential energy recovery power generation system to solve the problem of potential energy waste in the cooling tower.

[0005] The purpose of this application is achieved through the following technical solutions:

[0006] A water tank collecting cooling tower potential energy recovery power generation system comprises a cooling tower and a high-position water collecting device in the cooling tower, wherein the lower water end of the high-position water collecting device is opposite to a branch water tank below, the lower water ends of a plurality of branch water tanks are opposite to a notch of a main water tank, the main water tank is connected to a power generation drainage pipe, and the power generation drainage pipe is connected to a turbine generator outside the cooling tower.

[0007] Furthermore, a water distribution system, a nozzle, fillers and a high-position water collecting device are arranged in sequence from top to bottom in the cooling tower, and the water distribution system is connected to the nozzle.

[0008] Furthermore, a water collector is arranged above the water distribution system in the cooling tower, and a fan is arranged on the top of the cooling tower.

[0009] Furthermore, the high-position water collecting device comprises a water collecting inclined plate, the upper end of which is located below the filler, and the lower end of which is located at the notch of the water collecting trough.

[0010] Furthermore, a splash guard is provided at the lower end of the water collecting inclined plate.

[0011] Furthermore, the upper end of the water collecting inclined plate is fixed on the tower body beam, and the lower end of the water collecting inclined plate is fixed on the extended end of the water receiving and supporting trough.

[0012] Furthermore, the main water tank is arranged on one side of the cooling tower, located outside or inside the cooling tower.

[0013] Furthermore, the outer wall of the main water tank is higher than the inner wall.

[0014] Furthermore, the main water tank has a flat bottom or a semicircular bottom.

[0015] Furthermore, the branch and receiving water tank is connected to the main water tank through a flexible expansion joint.

[0016] The beneficial effects of the present application are: being able to efficiently collect the water flow formed by the water curtain in the rain area; the water surface in the branch water tank is smoothly connected to the main water tank, thereby collecting more water flow potential energy; under the adverse factors of long-term water flow vibration and uneven sedimentation, the impact of water overflow outside the water tank under accident conditions of excessive water inflow is reduced; saving costs; and being durable.

[0017] The aforementioned main scheme of the present application and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection in the present application; and in the present application, (non-conflicting options) can also be freely combined with each other and with other options. After understanding the present scheme, those skilled in the art can understand that there are many combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present application, and they are not exhaustively listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of this application (1 / 4 structure).

[0019] Figure 2 yes Figure 1 AA section view (schematic diagram of the arrangement of the branch and receiving water tanks).

[0020] Figure 3 It is a structural schematic diagram of the high-position water collecting device of the present application.

[0021] Figure 4 It is a structural schematic diagram of the main water tank of this application.

[0022] In the figure: 1-cooling tower, 2-fan, 3-water collector, 4-water distribution system, 5-nozzle, 6-filler, 7-high-position water collecting device, 8-branch water collecting tank, 9-main water tank, 10-power generation drainage pipe; 101-tower beam, 701-water collecting inclined plate, 702-splash preventer, 901-tank outer wall, 902-tank inner wall, 903-flexible expansion joint. DETAILED DESCRIPTION

[0023] The present application is further described below in conjunction with specific embodiments and drawings.

[0024] refer to Figure 1 to Figure 4 As shown, a water tank collecting cooling tower potential energy recovery power generation system includes a cooling tower 1, a fan 2, a water collector 3, a water distribution system 4, a nozzle 5, a filler 6, a high-level water collection device 7, a branch water tank 8, a main water tank 9, a power generation drainage pipe 10 and a hydro-generator.

[0025] A fan 2 is arranged at the top of the cooling tower 1. The fan 2 is used to provide wind pressure, realize the rapid flow of air from bottom to top, and accelerate the cooling and heat dissipation. The cooling tower 1 is arranged with a water collector 3, a water distribution system 4, a nozzle 5, a filler 6 and a high-level water collection device 7 from top to bottom. The water collector 3 is located below the fan 2 but above other components. It separates the wet air to be discharged and recovers the moisture in it. The water distribution system 4 is connected to the upper tower water pipe for evenly distributing hot water. The water distribution system 4 is connected to the nozzle 5, and the nozzle 5 sprays the hot water to ensure full contact with the air. The sprayed hot water falls on the filler 6. The main function of the filler 6 is to increase the heat dissipation, extend the cooling water residence time, increase the heat exchange area, and increase the heat exchange.

[0026] The high-level water collecting device 7 and the branch water collecting trough 8 are located in the cooling tower 1 and arranged in the lower space of the tower. The lower end of the high-level water collecting device 7 is opposite to the branch water collecting trough 8 below. The high-level water collecting device 7 is used to collect falling water to achieve high-level interception, and the branch water collecting trough 8 is used to collect the intercepted falling water. The lower ends of several branch water collecting troughs 8 are opposite to the notch of the main water trough 9. The main water trough 9 is used to converge the water flow in all the branch water collecting troughs 8. The main water trough 9 can be located in the cooling tower 1 or outside the cooling tower 1. The main water trough 9 is connected to the power generation drainage pipe 10, and the power generation drainage pipe 10 is connected to the turbine generator outside the cooling tower 1. The power generation drainage pipe 10 and the turbine generator are located outside the cooling tower 1. The water flow in the main water trough 9 is led to the generator, and the water flow with potential energy impacts the generator to achieve hydroelectric power generation.

[0027] The high-position water collecting device 7 includes a water collecting inclined plate 701 and a splash guard 702. The upper end of the water collecting inclined plate 701 is located below the filler 6, and the lower end of the water collecting inclined plate 701 is located at the notch of the branch water collecting tank 8. The water collecting inclined plate 701 arranged obliquely below the filler 6 intercepts the water flow, and then the water flow flows into the branch water collecting tank 8 under the guidance of gravity and the inclined plate. The splash guard 702 is provided at the lower end of the water collecting inclined plate 701 to prevent the water flow from splashing and affecting the water collecting effect.

[0028] The upper end of the water receiving inclined plate 701 is fixed to the tower beam 101 by bolts, and the lower end of the water receiving inclined plate 701 is welded or bonded to the extended end of the supporting water receiving trough 8 to ensure the stable placement of the water receiving inclined plate 701. The supporting water receiving trough 8 is a U-shaped cross-section, used to collect water flowing down the inclined plate, and one end of the U-shaped supporting water receiving trough 8 extends to support the inclined plate.

[0029] The main water tank 9 is arranged on one side of the cooling tower 1, and the water flow in the branch water tank can be collected into the main water tank on one side of the cooling tower, which can concentrate the water flow. The main water tank 9 is arranged on one side of the cooling tower to quickly collect the water flow of the branch water tank and minimize the interface with the branch water tank.

[0030] The main water tank 9 is an open structure, so when it is located inside the cooling tower 1, it can directly collect the rainwater curtain under the filler above the water tank, without setting a high-position water collection device and a branch water tank directly above the main water tank, thereby reducing the layout of the structure. A plurality of interfaces are opened at one end of the main water tank 9, correspondingly connected to a plurality of branch water tanks 8.

[0031] The main water tank 9 is located outside or inside the cooling tower 1. If it is placed outside the cooling tower, it does not occupy the area between the air inlet of the cooling tower and the packing area, and the air inlet is smoother and the wind resistance is smaller. If it is placed inside the cooling tower, it may occupy the area between the air inlet of the cooling tower and the packing area, which increases the local wind resistance, but is beneficial for winter antifreeze. At the same time, the main water tank 9 is located inside and is set as an open structure, which can directly collect the water curtain in the rain area under the packing above the water tank, without setting a high-level water collection device directly above the main water tank, saving investment.

[0032] The outer wall 901 of the main water tank 9 is higher than the inner wall 902. When the water inlet of the cooling tower at the front end of the main water tank system is adjusted and the hydroelectric generator at the rear end is started or shut down, the water level in the main water tank may change, and overflow may occur. The water tank wall is low on the inside and high on the outside of the mechanical ventilation cooling tower, so that the overflow water can overflow to the water pool in the cooling tower through the inner water tank wall, and the water in the water tank will not splash outside the cooling tower.

[0033] The branch water tank 8 is connected to the main water tank 9 through a flexible expansion joint 903. The flexible expansion joint 903 is preferably made of rubber material, which can adjust the construction and installation errors, facilitate the connection of the branch water tank to the main water tank, and reduce the damage caused by local stress at the interface of the supporting structure of the branch water tank and the main water tank due to uneven settlement.

[0034] The main water tank 9 can be made of steel, fiberglass, stainless steel, plastic and other materials, and the main water tank 9 has a flat bottom or a semicircular bottom. Different processing methods can be used according to different materials. For example, if steel, stainless steel and other plates are used, the bottom of the water tank can be set to a flat bottom as much as possible; if fiberglass, plastic and other materials are used, the bottom of the water tank can be set to a semicircular bottom or a flat bottom.

[0035] In order to increase the strength and rigidity of the water tank, external or internal ribs can be added to the main water tank wall for support. The local external ribs can reduce the thickness of the main water tank and reduce the overall material consumption. If a steel water tank is used, the main water tank must be painted with anti-corrosion paint inside and outside to maintain durability. The main water tank needs to have a certain volume and cannot be made too small, as the water inlet adjustment volume of the hydroelectric generator system at the back end of the system.

[0036] The cooling towers mentioned in this article include natural ventilation cooling towers and mechanical ventilation cooling towers. The attached figure takes a mechanical ventilation cooling tower as an example.

[0037] The aforementioned basic examples and their further selected examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed for protection in this application. In the scheme of this application, each selected example can be arbitrarily combined with any other basic examples and selected examples.

[0038] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A water tank collecting cooling tower potential energy recovery power generation system, comprising a cooling tower (1) and a high-position water collecting device (7) in the cooling tower (1), characterized in that: The lower end of the high-position water collecting device (7) is opposite to the branch water collecting trough (8) below, and the lower ends of the branch water collecting troughs (8) are opposite to the notch of the main water trough (9). The main water trough (9) is connected to the power generation drainage pipe (10), and the power generation drainage pipe (10) is connected to the water turbine generator outside the cooling tower (1).

2. The water tank collecting cooling tower potential energy recovery power generation system according to claim 1 is characterized in that: The cooling tower (1) is provided with a water distribution system (4), a nozzle (5), fillers (6) and a high-position water collecting device (7) in sequence from top to bottom, and the water distribution system (4) is connected to the nozzle (5).

3. The water tank collecting cooling tower potential energy recovery power generation system according to claim 1 or 2, characterized in that: The cooling tower (1) is also provided with a water collector (3) located above the water distribution system (4), and a fan (2) is arranged at the top of the cooling tower (1).

4. The water tank collecting cooling tower potential energy recovery power generation system according to claim 1 is characterized in that: The high-position water collecting device (7) comprises a water collecting inclined plate (701), the upper end of the water collecting inclined plate (701) is located below the filler (6), and the lower end of the water collecting inclined plate (701) is located at the notch of the water receiving and supporting trough (8).

5. The water tank collecting cooling tower potential energy recovery power generation system according to claim 4 is characterized in that: A splash guard (702) is provided at the lower end of the water collecting inclined plate (701).

6. The water tank collecting cooling tower potential energy recovery power generation system according to claim 4 or 5, characterized in that: The upper end of the water collecting inclined plate (701) is fixed on the tower body beam (101), and the lower end of the water collecting inclined plate (701) is fixed on the extended end of the water receiving and supporting trough (8).

7. The water tank collecting cooling tower potential energy recovery power generation system according to claim 1 is characterized in that: The main water tank (9) is arranged on one side of the cooling tower (1), and is located outside or inside the cooling tower (1).

8. The water tank collecting cooling tower potential energy recovery power generation system according to claim 1 or 7, characterized in that: The outer wall (901) of the main water tank (9) is higher than the inner wall (902).

9. The water tank collecting cooling tower potential energy recovery power generation system according to claim 1 or 7, characterized in that: The main water tank (9) has a flat bottom or a semicircular bottom.

10. The water tank collecting cooling tower potential energy recovery power generation system according to claim 1 or 7, characterized in that: The branch and receiving water tank (8) is connected to the main water tank (9) via a flexible expansion joint (903).

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