A high-efficiency energy-saving water-saving device for power plant

By introducing condenser tanks and filter screen systems into water-saving equipment in power plants, the problems of low water vapor recovery efficiency and water quality impurities have been solved, achieving high-efficiency water saving and automatic cleaning, and improving water resource utilization efficiency.

CN114543547BActive Publication Date: 2026-01-30HUANENG NANJING GAS TURBINE POWER GENERATION CO LTD
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Patent Information

Application Number
CN202210129051.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-02-11
Publication Date
2026-01-30
Estimated Expiration
2042-02-11

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Abstract

This invention discloses a high-efficiency and energy-saving water-saving device for power plants, relating to the technical field of water recycling devices. It includes a treatment tank with a welded base fixedly installed at the bottom. A high-efficiency water-saving mechanism is installed within the inner cavity of the treatment tank. An exhaust vent is provided at the top of the treatment tank, and a water filtration mechanism is provided at the bottom. The high-efficiency water-saving mechanism includes an air inlet pipe. This invention pre-connects a water vapor emission pipe to the top of the air inlet pipe to deliver water vapor into the inner cavity of the condenser tank. Simultaneously, it controls an external industrial chiller to deliver cold air into the inner cavity of the heat exchange tube. The cold air exchanges heat with the water vapor through the heat exchange tube, achieving the function of condensing and recovering water. Furthermore, guided by the inner bend pipe and the collection hood, some of the cold air enters the inner cavity of the outer bend pipe, further increasing the heat exchange rate between the cold air and water vapor and improving the adequacy of condensation recovery.
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Description

Technical Field

[0001] This invention relates to a water-saving device for power plants, specifically to a highly efficient and energy-saving water-saving device for power plants, within the technical field of water recycling devices. Background Technology

[0002] Thermal power plants are designed with circulating water systems to cool equipment requiring water cooling, such as generators, oil coolers, coal mills, thin oil stations, air compressors, and fans. The circulating water, carrying heat, passes through cooling towers to dissipate the heat into the atmosphere. However, some of the high-quality water also evaporates into the atmosphere, resulting in a waste of water and thermal energy resources. The existing technology has the following problems:

[0003] 1. Common water-saving devices do not have the function of efficiently recovering water vapor. The efficiency of water vapor recovery is low, which leads to a lot of water waste and needs to be improved.

[0004] 2. Common water-saving equipment does not have the function of filtering recycled water. The water recycled by the condensation process contains a lot of impurities, which affects the quality of the recycled water. Summary of the Invention

[0005] This invention provides a highly efficient and energy-saving water-saving device for power plants. One objective is to enable efficient recovery of water vapor, thereby addressing the problem of significant water waste. Another objective is to address the issue of impurities in the water recovered from the condensation process, enabling the filtration of the recovered water.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A high-efficiency and energy-saving water-saving device for power plants includes a treatment tank, a welded base fixedly installed at the bottom of the treatment tank, a high-efficiency water-saving mechanism provided in the inner cavity of the treatment tank, an exhaust vent provided at the top of the treatment tank, and a water filtration mechanism provided at the bottom of the treatment tank.

[0008] The high-efficiency water-saving mechanism includes an air inlet pipe, which is fixedly installed on the top of the processing chamber and extends to the inner cavity of the processing chamber. A condenser tank is fixedly connected in the inner cavity. The condenser tank is used to exchange heat between external cold air and water vapor through a heat exchange pipe. The water filtration mechanism includes a water collection hood and a filter pipe. The water collection hood is fixedly connected to the bottom of the inner cavity of the processing chamber, and the filter pipe is fixedly connected to the bottom of the processing chamber. The filter pipe is equipped with an adjustable filter screen and a filter screen cleaning device.

[0009] A further improvement of the technical solution of the present invention is that: a hollow ring one and a hollow ring two are fixedly connected to the outer wall of the condenser tank; a heat exchange tube is fixedly connected between the inner walls of the hollow ring one and the hollow ring two; a central baffle plate is fixedly installed in the inner cavity of the condenser tank; the central baffle plate is used to reduce the volume of the inner cavity of the condenser tank and thus improve the effect of heat exchange; the left side of the hollow ring two is threadedly connected to the cold air output pipe of an external industrial air conditioner; an exhaust pipe is threadedly connected to the left side of the hollow ring one; and the right sides of the inner walls of the hollow ring one and the hollow ring two are both connected to the heat exchange tube.

[0010] A further improvement of the technical solution of the present invention is that: an inner bend is fixedly connected to the inner wall of the heat exchange tube, a collection hood is fixedly connected to the bottom of the inner bend, and an outer bend is fixedly connected to the outer wall of the heat exchange tube. The cooperation of the inner bend and the collection hood is used to divert and collect the gas passing through the inner cavity of the heat exchange tube, so that it flows through the inner cavity of the outer bend, thereby further improving the effect of heat exchange. The output end and the input end of the outer bend are both connected to the outer wall of the heat exchange tube.

[0011] A further improvement of the technical solution of the present invention is that a stepper motor is fixedly installed on the left side of the filter pipe, and the output shaft of the stepper motor extends into the inner cavity of the filter pipe and is fixedly connected to an inner ring.

[0012] A further improvement of the technical solution of the present invention is that: an annular filter plate is fixedly connected to the inner wall of the inner ring, a central plate is fixedly connected to the inner wall of the annular filter plate, and a drive motor is fixedly installed at the bottom of the central plate.

[0013] A further improvement of the technical solution of the present invention is that: the output shaft of the drive motor extends to the top of the center plate and is fixedly connected to a rotating seat, and a brush rod is fixedly installed on the outer wall of the rotating seat.

[0014] A further improvement of the technical solution of the present invention is that: a solenoid valve is fixedly connected to the bottom of the filter pipe, and the number of solenoid valves is set to two, one of which is threaded to a clean water pipe at the bottom, and the other is threaded to a sewage pipe at the bottom.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0016] 1. This invention provides a high-efficiency and energy-saving water-saving device for power plants. It adopts a combination of an air inlet pipe, a condenser tank, a heat exchange pipe, an inner bend pipe, a collection hood, and an outer bend pipe. A water vapor discharge pipe is pre-connected to the top of the air inlet pipe to deliver water vapor into the inner cavity of the condenser tank. At the same time, an external industrial air cooler is controlled to operate, delivering cold air into the inner cavity of the heat exchange pipe. The cold air exchanges heat with the water vapor through the heat exchange pipe, realizing the function of condensing and recovering water. Furthermore, guided by the inner bend pipe and the collection hood, some of the cold air enters the inner cavity of the outer bend pipe, further improving the heat exchange rate between the cold air and the water vapor, enhancing the sufficiency of condensation recovery, realizing the function of efficiently recovering water vapor, and reducing the waste of water resources.

[0017] 2. This invention provides a high-efficiency and energy-saving water-saving device for power plants, which combines an annular filter plate, a drive motor, and a stepper motor. The annular filter plate is designed to filter recycled water, improving its cleanliness and expanding its usability. When the annular filter plate is saturated, the stepper motor is controlled to tilt the inner ring, and then the drive motor is controlled to rotate the brush rod, thus cleaning the annular filter plate. While cleaning, the solenoid valve corresponding to the clean water pipe is closed, and the solenoid valve corresponding to the sewage pipe is opened, thereby achieving automatic cleaning of the annular filter plate and reducing the physical exertion of workers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the processing box of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the heat exchange tube of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the filter pipe of the present invention;

[0022] Figure 5 This is a schematic diagram of the inner ring structure of the present invention.

[0023] In the diagram: 1. Processing the casing; 2. Welding the base;

[0024] 3. High-efficiency water-saving mechanism; 31. Air inlet pipe; 32. Condensate tank; 33. Hollow ring one; 34. Hollow ring two; 35. Central baffle plate; 36. Heat exchange tube; 361. Inner bend tube; 362. Collection cover; 363. Outer bend tube;

[0025] 4. Water filtration mechanism; 41. Water collection cover; 42. Filter pipe; 421. Stepper motor; 422. Inner ring; 423. Annular filter screen plate; 424. Center plate; 425. Drive motor; 426. Rotary seat; 427. Brush rod; 43. Solenoid valve. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] Example 1

[0028] like Figure 1 , 2 As shown, the present invention provides a high-efficiency and energy-saving water-saving device for power plants, including a treatment tank 1, a welded base 2 fixedly installed at the bottom of the treatment tank 1, a high-efficiency water-saving mechanism 3 provided in the inner cavity of the treatment tank 1, an exhaust vent at the top of the treatment tank 1, and a water filtration mechanism 4 at the bottom of the treatment tank 1. The high-efficiency water-saving mechanism 3 includes an air inlet pipe 31, which is fixedly installed at the top of the treatment tank 1. The bottom of the air inlet pipe 31 extends into the inner cavity of the treatment tank 1 and is fixedly connected to a condenser tank 32. The condenser tank is used to exchange heat between external cold air and water vapor through a heat exchange pipe. The water filtration mechanism 4 includes a water collection hood 41 and a filter pipe 42. The water collection hood 41 is fixedly connected to the bottom of the inner cavity of the treatment tank 1, and the filter pipe 42 is fixedly connected to the bottom of the treatment tank 1. The filter pipe is provided with an adjustable filter screen plate, and the filter pipe is also provided with a filter screen plate cleaning device.

[0029] Example 2

[0030] like Figure 2 , 3As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, a hollow ring 33 is fixedly connected to the outer wall of the condenser tank 32, a hollow ring 34 is fixedly connected to the outer wall of the condenser tank 32, a heat exchange pipe 36 is fixedly connected between the inner walls of the hollow ring 33 and the hollow ring 34, a central baffle plate 35 is fixedly installed in the inner cavity of the condenser tank 32, the left side of the hollow ring 34 is threadedly connected to the cold air output pipe of an external industrial air conditioner, an exhaust pipe is threadedly connected to the left side of the hollow ring 33, an inner bend pipe 361 is fixedly connected to the inner wall of the heat exchange pipe 36, and the bottom of the inner bend pipe 361 is fixed. A collection hood 362 is connected to the heat exchange tube 36, and an outer bend 363 is fixedly connected to the outer wall of the heat exchange tube 36. A water vapor discharge pipe is pre-connected to the top of the air inlet pipe 31 to deliver water vapor into the inner cavity of the condenser tank 32. At the same time, an external industrial air conditioner is controlled to operate and deliver cold air into the inner cavity of the heat exchange tube 36. The cold air exchanges heat with the water vapor through the heat exchange tube 36 to achieve the function of condensing and recovering water. Furthermore, guided by the inner bend 361 and the collection hood 362, some of the cold air enters the inner cavity of the outer bend 363, further improving the heat exchange rate between the cold air and the water vapor and enhancing the adequacy of condensation recovery.

[0031] Example 3

[0032] like Figure 4 , 5 As shown, based on Embodiment 1, the present invention provides a technical solution: a stepper motor 421 is fixedly installed on the left side of the filter pipe 42, and the output shaft of the stepper motor 421 extends into the inner cavity of the filter pipe 42 and is fixedly connected to an inner ring 422. When the filtration function of the annular filter plate 423 is saturated, the stepper motor 421 is controlled to work, causing the inner ring 422 to tilt, and then the drive motor 425 is controlled to work, causing the brush rod 427 to rotate, thereby realizing the function of cleaning the annular filter plate 423. Preferably, an annular filter plate 423 is fixedly connected to the inner wall of the inner ring 422, and a central plate 424 is fixedly connected to the inner wall of the annular filter plate 423. A drive motor 425 is fixedly installed at the bottom of the central plate 424, and a rotating seat 426 is fixedly connected to the top of the central plate 424 through the output shaft of the drive motor 425. A brush rod 427 is fixedly installed on the outer wall of the rotating seat 426. A solenoid valve 43 is fixedly connected to the bottom of the filter pipe 42. Two solenoid valves 43 are provided. One solenoid valve 43 is threaded to a clean water pipe at its bottom, and the other solenoid valve 43 is threaded to a sewage pipe at its bottom. The design of the annular filter plate 423 can filter the recycled water, improve the cleanliness of the recycled water, and expand its usability. While cleaning the annular filter plate 423, the solenoid valve 43 corresponding to the clean water pipe is closed, and the solenoid valve 43 corresponding to the sewage pipe is opened to discharge the clean sewage.

[0033] The working principle of this highly efficient and energy-saving water-saving equipment for power plants will be explained in detail below.

[0034] like Figure 1-5 As shown, during use, the water vapor emission pipe is pre-connected to the top of the air inlet pipe 31 to deliver water vapor into the inner cavity of the condenser tank 32. At the same time, the external industrial air conditioner is controlled to work, delivering cold air into the inner cavity of the heat exchange pipe 36, thereby realizing the function of condensing and recovering water. The gas is discharged through the exhaust trough, and the water is collected through the water collection hood 41. The design of the annular filter plate 423 can filter the recovered water. The filtered water is discharged through the clean water pipe. When the filtration function of the annular filter plate 423 is saturated, the stepper motor 421 is controlled to work to tilt the inner ring 422, and then the drive motor 425 is controlled to work to drive the brush rod 427 to rotate, thereby realizing the function of cleaning the annular filter plate 423. While cleaning, the solenoid valve 43 corresponding to the clean water pipe is closed and the solenoid valve 43 corresponding to the sewage pipe is opened to discharge the clean sewage.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-efficiency and energy-saving water-saving device for power plants, characterized in that: Including processing box (1), the bottom of processing box (1) is fixedly installed with welding base (2), the inner chamber of processing box (1) is provided with high -efficient water -saving mechanism (3), the top of processing box (1) is provided with exhaust groove, the bottom of processing box (1) is provided with water filtering mechanism (4); The high -efficient water -saving mechanism (3) includes air inlet pipe (31), the air inlet pipe (31) is fixedly installed at the top of processing box (1), the bottom of air inlet pipe (31) extends to the inner chamber of processing box (1), the inner chamber is fixedly connected with condensing tank body (32), the condensing tank body is used to carry out cold and hot exchange between the water vapor and the external cold gas through heat exchange pipe; The water filtering mechanism (4) includes water collecting cover (41) and filter pipe (42), the water collecting cover (41) is fixedly connected at the bottom of the inner chamber of processing box (1), the filter pipe (42) is fixedly connected at the bottom of processing box (1), the filter pipe (42) is provided with the filter screen plate of adjustable position, the filter pipe is also provided with filter screen plate cleaning device; The outer wall of condensing tank body is fixedly connected with hollow ring one (33) and hollow ring two (34), the inner wall between hollow ring one (33), hollow ring two (34) is fixedly connected with heat exchange pipe (36), the inner chamber of condensing tank body (32) is fixedly installed with center blocking plate (35), the left side of hollow ring two (34) is screw connected with the cold gas output pipe of external industrial cold gas machine, the left side of hollow ring one (33) is screw connected with exhaust pipe; The inner wall of heat exchange pipe (36) is fixedly connected with inner elbow pipe (361), the bottom of inner elbow pipe (361) is fixedly connected with collecting cover (362), the outer wall of heat exchange pipe (36) is fixedly connected with outer elbow pipe (363); The left side of filter pipe (42) is fixedly installed with step motor (421), the output shaft of step motor (421) extends to the inner chamber of filter pipe (42) and is fixedly connected with inner ring (422); The inner wall of inner ring (422) is fixedly connected with annular filter screen plate (423), the inner wall of annular filter screen plate (423) is fixedly connected with center plate (424), the bottom of center plate (424) is fixedly installed with driving motor (425).

2. The water saving device for power plant of high efficiency and energy saving according to claim 1, characterized in that: The output shaft of driving motor (425) extends to the top of center plate (424) and is fixedly connected with rotating seat (426), the outer wall of rotating seat (426) is fixedly installed with brush rod (427).

3. The water saving device for power plant of high efficiency and energy saving according to claim 2, characterized in that: The bottom of filter pipe (42) is fixedly connected with electromagnetic valve (43), the number of electromagnetic valve (43) is set to two, the bottom of one of electromagnetic valve (43) is screw connected with clean water pipe, the bottom of another electromagnetic valve (43) is screw connected with sewage pipe.

Citation Information

Patent Citations

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