High-level water collection cooling tower liquid level fall power generation device

Abstract

The invention discloses a high-level water collection cooling tower liquid level fall power generation device, and relates to the technical field of cooling towers. The device comprises a cooling tower unit, a circulating water unit and a power generation unit; the cooling tower unit comprises a tower body which is provided with a water return ditch and is of a hyperbolic structure, filler arranged in the tower body, a dehydrator arranged in the tower body and a water collecting inclined plate arranged in the tower body; the circulating water unit comprises a water return pipe arranged on the tower body and located at the water return ditch, a heat exchange assembly arranged on the water return pipe and a spraying assembly arranged in the tower body and connected with the heat exchange assembly; and the power generation unit is arranged on the water return pipe. According to the liquid level fall power generation device of the high-level water collection cooling tower, the heat exchange efficiency can be improved, more water can be collected, the water supplementing frequency is reduced, and the collected water is used for power generation.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, and in particular to a liquid level drop power generation device for a high-position water-collecting cooling tower. Background Art

[0002] Energy is the material basis for economic and social development. Improving energy efficiency, improving energy consumption structure, and adhering to the path of sustainable energy utilization have become the supporting conditions for the harmonious development of society. According to the "Implementation Plan on Promoting High-Quality Development of New Energy in the New Era" jointly issued by the National Development and Reform Commission and the National Energy Administration in May 2022: "In accordance with the requirements of promoting the optimal combination of coal and new energy, coal-fired power companies and new energy companies are encouraged to carry out substantive joint ventures." The joint construction of a comprehensive energy system by new energy power generation systems and thermal power systems is of great significance to improving the new energy absorption capacity and promoting the low-carbon operation of the power system. At present, thermal power companies are facing opportunities for energy transformation and challenges of low-carbon development and transformation and upgrading. Only by actively broadening the industrial chain and organically integrating thermal power and new energy can they enhance their overall competitiveness.

[0003] Most of the thermal power plants in my country use high-level water collection cooling towers, but there is a common situation that the difference in liquid level between the return water collection tank and the front pool is not utilized, resulting in energy waste. Summary of the invention

[0004] In view of the problems existing in the above-mentioned existing high-position water collection cooling tower liquid level drop power generation device, the present invention is proposed.

[0005] Therefore, the present invention provides a high-level water collection cooling tower liquid level difference power generation device, the purpose of which is to solve the current situation that the liquid level difference from the return water collection tank to the front pool cannot be utilized, resulting in a technical problem of energy waste.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0007] A cooling tower unit comprises a tower body with a return ditch and a hyperbolic structure, a filler arranged in the tower body, a water eliminator arranged in the tower body, and a water collecting inclined plate arranged in the tower body;

[0008] A circulating water unit includes a return pipe disposed on the tower body and located at the return ditch, a heat exchange component disposed on the return pipe, and a spray component disposed in the tower body and connected to the heat exchange component; and

[0009] The power generation unit is arranged on the return water pipe.

[0010] As a preferred solution of the liquid level difference power generation device of the high-level water collection cooling tower described in the present invention, the power generation unit includes a turbine arranged on the return water pipe, a gearbox connected to the turbine, and a generator arranged on the gearbox.

[0011] As a preferred solution of the liquid level difference power generation device of the high-level water collection cooling tower of the present invention, the circulating water unit also includes a circulating water pump arranged on the return water pipe and the output end of which is connected to the heat exchange component.

[0012] As a preferred solution of the high-level water collection cooling tower liquid level difference power generation device described in the present invention, the heat exchange component includes a return pipe connected to the circulating water pump, a heat exchanger arranged on the return pipe, and a water outlet pipe arranged on the heat exchanger and connected to the spray component.

[0013] As a preferred solution of the liquid level difference power generation device of the high-level water collection cooling tower described in the present invention, the spray assembly includes a water pipe arranged on the tower body and connected to the water outlet pipe, a diversion pipe arranged in the tower body and connected to the water pipe, and a nozzle arranged on the diversion pipe.

[0014] As a preferred solution of the liquid level difference power generation device of the high-level water collection cooling tower of the present invention, a support frame for supporting the water remover is arranged on the tower body.

[0015] As a preferred solution of the liquid level difference power generation device of the high-level water collection cooling tower described in the present invention, the dehydrator includes a vertical plate 1 arranged on the support frame, an inclined plate 1 arranged on the vertical plate 1, an inclined plate 2 arranged on the inclined plate 1, and a vertical plate 2 arranged on the inclined plate 2 and connected to the support frame; the vertical plate 2 is staggered with the vertical plate 1.

[0016] As a preferred solution of the liquid level difference power generation device of the high-level water collection cooling tower described in the present invention, wherein: the lower end of the vertical plate one protrudes from the inclined plate one by a distance δ, and an opening arc with a size of δ is provided at the connection between the inclined plate one and the inclined plate two; the inclined plate one and the inclined plate two are provided with angles θ and θ with the air flow direction.

[0017] As a preferred solution of the high-level water collection cooling tower liquid level difference power generation device described in the present invention, the water collection inclined plate includes a water collection trough connected to the return ditch, and a guide plate which is inclined and has one end arranged on the water collection trough and the other end arranged on the filler.

[0018] As a preferred solution of the liquid level difference power generation device of the high-level water collection cooling tower described in the present invention, a plurality of corrugated grooves are arranged on the guide plate.

[0019] The beneficial effects of the present invention are as follows: by adding a power generation unit to reuse the returned water, the technical problem of the current situation that the difference in level between the return water collection tank and the front tank cannot be utilized, resulting in energy waste, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the high-level water collection cooling tower liquid level drop power generation device of the present invention.

[0022] Figure 2 It is a partial structural schematic diagram of the liquid level drop power generation device of the high-position water collection cooling tower of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the water remover in the liquid level drop power generation device of the high-level water collection cooling tower of the present invention.

[0024] Figure 4 It is a schematic diagram of the angle structure of the water remover in the liquid level drop power generation device of the high-level water collection cooling tower of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the water collecting inclined plate in the liquid level drop power generation device of the high-position water collecting cooling tower of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the guide plate in the liquid level drop power generation device of the high-level water collection cooling tower of the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Example 1, reference Figure 1-Figure 6 , which is the first embodiment of the present invention, provides a high-level water collection cooling tower liquid level drop power generation device, the device includes a cooling tower unit 100, a circulating water unit 200, and a power generation unit 300;

[0032] The cooling tower unit 100 includes a tower body 101 having a return ditch 101a and a hyperbolic structure, a filler 102 arranged in the tower body 101, a dewatering device 103 arranged in the tower body 101, and a water collecting inclined plate 104 arranged in the tower body 101; the circulating water unit 200 includes a return pipe 202 arranged on the tower body 101 and located at the return ditch 101a, a heat exchange component 201 arranged on the return pipe 202, and a spray component 204 arranged in the tower body 101 and connected to the heat exchange component 201; and a power generation unit 300 is arranged on the return pipe 202.

[0033] The power generation unit 300 includes a turbine 301 disposed on the water return pipe 202 , a gearbox 302 connected to the turbine 301 , and a generator 303 disposed on the gearbox 302 .

[0034] During use, air enters the tower body 101 from the bottom of the tower body 101, and the water heated by the heat exchange component 201 is transported to the tower body 101 through the spray component 204 and sprayed out, falling on the filler 102 to form a liquid film, so that it can fully contact with the air at the filler 102 for heat exchange, and the cooled water flows into the return ditch 101a through the water receiving inclined plate 104, and the water in the return ditch 101a flows into the return pipe 202. Since the height of the return ditch 101a is greater than 7m, the flow rate of water flowing into the return pipe 202 is greater than 23m 3 / s, thereby driving the turbine 301 to rotate. The turbine 301 increases its speed through the gearbox 302, so that the generator 303 can generate electricity, thereby generating electricity through the potential energy of the liquid level difference, improving the comprehensive benefits of energy, and achieving the goals of energy saving, environmental protection, and carbon reduction.

[0035] Example 2, reference Figure 1-Figure 6 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the circulating water unit 200 also includes a circulating water pump 203 disposed on the return pipe 202 and the output end of which is connected to the heat exchange component 201. The heat exchange component 201 includes a return pipe 201a connected to the circulating water pump 203, a heat exchanger 201b disposed on the return pipe 201a, and a water outlet pipe 201c disposed on the heat exchanger 201b and connected to the spray component 204.

[0036] Among them, the spray component 204 includes a water pipe 204a arranged on the tower body 101 and connected to the water outlet pipe 201c, a branch pipe 204b arranged in the tower body 101 and connected to the water pipe 204a, and a nozzle 204c arranged on the branch pipe 204b; hot water is transported to the water pipe 204a through the heat exchange component 201, and then dispersed into the branch pipe 204b through the water pipe 204a, and finally sprayed out from the branch pipe 204b, falling on the filler 102 to form a liquid film, which can come into contact with the air.

[0037] During use, the cooled water enters the return pipe 202 through the return ditch 101a, and the potential energy of the liquid level difference drives the power generation unit 300 to generate electricity. The cooled water is transported to the return pipe 201a by the circulating water pump 203, and then flows into the heat exchanger 201b through the return pipe 201a for heat exchange to be heated into hot water. The water is transported to the water supply pipe 204a through the outlet pipe 201c, and then transported to the diversion pipe 204b through the return pipe 201a, and then sprayed out through the nozzle 204c and falls on the filler 102. When air enters, heat exchange can be carried out to achieve the purpose of recycling.

[0038] The remaining structures are the same as those of Example 1.

[0039] Example 3, reference Figure 1-Figure 6, which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: a support frame for supporting the dewatering device 103 is provided on the tower body 101. The dewatering device 103 includes a vertical plate 103a provided on the support frame, an inclined plate 103b provided on the vertical plate 103a, an inclined plate 2 103c provided on the inclined plate 103b, and a vertical plate 2 103d provided on the inclined plate 2 103c and connected to the support frame, and a plurality of vertical plates 103d are provided and evenly arranged; the vertical plate 2 103d is staggered with the vertical plate 1 103a.

[0040] Among them, the lower end of the vertical plate 103a protrudes from the inclined plate 1 103b by a distance of δ1, and an opening arc 103b-1 with a size of δ2 is set at the connection between the inclined plate 1 103b and the inclined plate 2 103c; the inclined plate 1 103b and the inclined plate 2 103c are set at angles θ1 and θ2 with the airflow direction.

[0041] Furthermore, the water collecting inclined plate 104 includes a water collecting groove 104b connected to the water return groove 101a, and a guide plate 104a which is arranged obliquely and has one end arranged on the water collecting groove 104b and the other end arranged on the filler 102. The guide plate 104a is provided with a plurality of corrugated grooves; the corrugated grooves can facilitate the collection of water flow, so that the water flow can be concentrated into the water collecting groove 104b, and then flow into the water return groove 101a through the water collecting groove 104b, thereby realizing the collection of water flow.

[0042] During use, when the hot and humid air containing a certain amount of mist droplets flows through the dehumidifier 103 at a certain speed, the hot and humid air is quickly and continuously changed in direction. Due to the centrifugal force and inertia, the mist droplets in the hot and humid air hit the dehumidifier 103 and are captured. The mist droplets gather to form a water flow, which falls into the water collecting inclined plate 104 due to gravity, achieving gas-liquid separation, so that the hot and humid air flowing through the dehumidifier 103 meets the demisting requirements and is discharged;

[0043] The longer the protruding distance of δ1 and the larger the angle of δ2, the greater the resistance to airflow will be, and the more water will be collected, but the ventilation volume will be reduced, resulting in reduced heat dissipation effect.

[0044] The angle range of θ1 and θ2 is 45°-60° with the air flow direction. The larger the angle between θ1 and θ2, the greater the resistance to airflow, which can better collect water vapor and reduce water evaporation, without the need for frequent water replenishment. However, due to the increased resistance, the air volume will decrease, resulting in poor heat dissipation effect. If the angle between θ1 and θ2 is smaller, the heat dissipation effect can be improved, but the water collection effect is poor, and frequent water replenishment is required.

[0045] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be easily understood by those who refer to this disclosure that many modifications are possible (for example, the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(for example, temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the high-level water collection cooling tower liquid level drop power generation device described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-level water cooling tower liquid level drop power generation device, Features: include, A cooling tower unit (100) comprises a tower body (101) having a return ditch (101a) and a hyperbolic structure, a filler (102) arranged in the tower body (101), a dewatering device (103) arranged in the tower body (101), and a water collecting inclined plate (104) arranged in the tower body (101); A circulating water unit (200) comprises a return pipe (202) arranged on the tower body (101) and located at the return ditch (101a), a heat exchange component (201) arranged on the return pipe (202), and a spray component (204) arranged in the tower body (101) and connected to the heat exchange component (201); and The power generation unit (300) is arranged on the water return pipe (202).

2. The high-level water collection cooling tower liquid level drop power generation device according to claim 1, Features: The power generation unit (300) comprises a water turbine (301) arranged on the water return pipe (202), a gearbox (302) connected to the water turbine (301), and a generator (303) arranged on the gearbox (302).

3. The high-level water collection cooling tower liquid level drop power generation device according to claim 2, Features: The circulating water unit (200) further comprises a circulating water pump (203) which is arranged on the return water pipe (202) and whose output end is connected to the heat exchange component (201).

4. The high-level water collection cooling tower liquid level drop power generation device according to claim 3, Features: The heat exchange component (201) comprises a return pipe (201a) connected to the circulating water pump (203), a heat exchanger (201b) arranged on the return pipe (201a), and a water outlet pipe (201c) arranged on the heat exchanger (201b) and connected to the spray component (204).

5. The high-level water collection cooling tower liquid level drop power generation device according to claim 4, Features: The spray assembly (204) comprises a water delivery pipe (204a) arranged on the tower body (101) and connected to the water outlet pipe (201c), a diversion pipe (204b) arranged in the tower body (101) and connected to the water delivery pipe (204a), and a spray head (204c) arranged on the diversion pipe (204b).

6. The high-level water collection cooling tower liquid level drop power generation device according to claim 5, Features: A support frame for supporting the dewatering device (103) is provided on the tower body (101).

7. The high-level water collection cooling tower liquid level drop power generation device according to claim 6, Features: The dewatering device (103) comprises a vertical plate 1 (103a) arranged on the support frame, an inclined plate 1 (103b) arranged on the vertical plate 1 (103a), an inclined plate 2 (103c) arranged on the inclined plate 1 (103b), and a vertical plate 2 (103d) arranged on the inclined plate 2 (103c) and connected to the support frame; the vertical plate 2 (103d) is staggered with the vertical plate 1 (103a).

8. The high-level water collection cooling tower liquid level drop power generation device according to claim 7, Features: The lower end of the vertical plate 1 (103a) protrudes from the inclined plate 1 (103b) by a distance of δ1, and an opening arc (103b-1) with a size of δ2 is provided at the connection between the inclined plate 1 (103b) and the inclined plate 2 (103c); the inclined plate 1 (103b) and the inclined plate 2 (103c) are provided with angles θ1 and θ2 with the airflow direction.

9. The high-level water collection cooling tower liquid level drop power generation device according to claim 8, Features: The water collecting inclined plate (104) comprises a water collecting groove (104b) connected to the water return groove (101a), and a guide plate (104a) which is arranged obliquely and has one end arranged on the water collecting groove (104b) and the other end arranged on the filler (102).

10. The high-level water collection cooling tower liquid level drop power generation device according to claim 9, Features: The guide plate (104a) is provided with a plurality of corrugated grooves.

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