Condensed water recovery device for air cooling system of power station

Abstract

The invention discloses a power station air cooling system condensation water recovery device, and belongs to the technical field of steam condensation water recovery, the power station air cooling system condensation water recovery device comprises a base and a shell, condensation structures are symmetrically and fixedly connected in the shell, and a plurality of condensation pipes used for condensing steam are installed in the condensation structures; the condensation structure comprises a steam pipe used for conducting dredging and flow dividing on steam, and the outer portion of the steam pipe is connected with a conveying pipe connected with a steam discharging pipe through a flange. According to the invention, after steam is divided into a cold part and a hot part by the vortex tube, the cold part enters the cooling inner tube through the cold source tube, and the cooled steam entering the cooling inner tube enters the cooling outer tube through the transition cavity; and after the cooling inner pipe and the cooling outer pipe are both cooled, water vapor entering the inner sleeve through the guide pipe can be condensed into water drops more quickly, and then collection of condensed water is accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of steam condensate recovery, in particular to a condensate recovery device for an air cooling system of a power station. Background Art

[0002] A power station is a place for generating electricity. The current mainstream methods of power stations are coal-fired power generation and nuclear power generation. However, both coal-fired power generation and nuclear power generation involve boiling water, and then guiding the generated high-temperature and high-pressure steam to drive the power generation equipment to rotate, thereby generating electricity. In order to save water resources, the power station will recycle the steam after processing and condense it into water again. At present, when recycling water vapor, most of the water vapor is guided into a device equipped with a coolant circulation mechanism, and then the water vapor is cooled and condensed with the help of the coolant circulation. However, in this way, when the coolant absorbs too much heat, the steam condensation efficiency will be reduced, and using a separate device to cool the steam will not only increase the cost, but also increase the heat dissipation cost. Therefore, the present invention provides a condensate recovery device for a power station air cooling system to solve the above-mentioned problems. Summary of the Invention

[0003] The object of the present invention is to provide a condensate recovery device for an air cooling system of a power station to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A condensate recovery device for a power plant air-cooling system comprises a base and a housing, wherein a condensation structure is symmetrically fixedly connected to the interior of the housing, wherein a plurality of condensation pipes for condensing steam are installed inside the condensation structure, and the condensation structure includes a steam pipe for channeling and diverting the steam, wherein the exterior of the steam pipe is connected to a delivery pipe connected to a steam discharge pipe via a flange; The condensation structure also includes two heat dissipation shells for protecting the condensing tubes. The two heat dissipation shells are fixedly connected to the outer wall of the steam pipe. One end of the heat dissipation shell away from the steam pipe is fixedly connected to a water collecting pipe. One end of the water collecting pipe is fixedly connected to a drain pipe for drainage, and the drain pipe is connected to an external water collecting tank.

[0005] As a further solution of the present invention, a pressurizing pipe for further pressurizing the steam is fixedly connected between the two heat dissipation shells below the steam pipe, a pressure sensor for detecting pressure is installed in the pressurizing pipe, the pressurizing pipe and the delivery pipe are connected through a drainage pipe, and a guide pipe is also fixedly connected between the drainage pipe and the delivery pipe, and a guide fan is installed in the guide pipe.

[0006] As a further solution of the present invention, the condenser includes a cooling tube, the interior of the cooling tube is fixedly connected to a cooling inner tube, the exterior of the cooling tube is located inside the heat dissipation shell and is fixedly connected to a vortex tube for cooling the cooling inner tube, the cold source tube of the vortex tube is connected to the cooling inner tube, and the air intake pipe of the vortex tube is connected to the pressurized pipe.

[0007] As a further solution of the present invention, the end of the pressurizing pipe away from the drainage pipe is fixedly connected to the exhaust pipe, the exhaust pipe and the intake pipe are connected by a connecting pipe, and a solenoid valve is also fixedly connected between the exhaust pipe and the intake pipe.

[0008] As a further solution of the present invention, the vortex tube is located at the lower end of the cooling tube, and a plugging head is fixedly connected to one end of the cooling tube away from the vortex tube, and the plugging head has a cone extending into the cooling tube.

[0009] As a further solution of the present invention, an inner sleeve is fixedly connected to the interior of the cooling pipe, an air intake cavity is provided between the inner sleeve and the cooling pipe, the air intake cavity is connected to the steam pipe through a guide pipe, and a plurality of air guide ports are opened at one end of the inner sleeve close to the cone.

[0010] As a further solution of the present invention, the cooling inner tube is fixedly connected to the inner sleeve, and a plurality of small holes are provided at the lower end of the cooling inner tube. A drainage outlet is provided at the inner bottom end of the inner sleeve, and the drainage outlet is connected to the water collecting pipe. The outer sleeve of the cooling inner tube is provided with a cooling outer tube, and the cooling outer tube is arranged in a spiral shape.

[0011] As a further solution of the present invention, the end of the cooling inner tube away from the vortex tube is threadedly connected to a steering cover, and a transition cavity is provided inside the steering cover. The transition cavity is connected to the cooling inner tube, and two docking ports are provided inside the transition cavity, one of which is connected to the cooling outer tube, and the other docking port is in an open state.

[0012] As a further solution of the present invention, a spiral heating tube is further sheathed on the outside of the pressurized tube, one end of the heating tube is fixedly connected to a circulation tube, and the heat source tubes in the vortex tubes are all connected to the circulation tube.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, after the vortex tube divides the steam into cold and hot parts, the cold part will enter the cooling inner tube through the cold source tube, and the cooled steam entering the cooling inner tube will pass through the transition cavity and enter the cooling outer tube. When the cooling inner tube and the cooling outer tube are cooled, the water vapor entering the inner sleeve through the guide tube will be condensed into water droplets more quickly, thereby accelerating the collection of condensed water.

[0014] 2. When the present invention is used, the steam that has not entered the cooling outer tube will be ejected through the docking port, thereby removing the water droplets attached to the cooling inner tube and the cooling outer tube, thereby accelerating the collection of condensed water.

[0015] 3. When the present invention is used, part of the steam after working will flow into the steam pipe through the delivery pipe, and the other part will enter the pressurized pipe through the drainage pipe. As the steam in the pressurized pipe increases, the pressure in the pressurized pipe will increase. When the pressure reaches the threshold, the solenoid valve will open. At this time, the pressurized steam will enter the intake pipe through the connecting pipe, and then enter the vortex tube through the intake pipe. At this time, the steam passing through the vortex tube will be divided into cold and hot parts. The hot part will enter the circulation pipe through the heat source pipe, and then enter the heating pipe through the circulation pipe to heat the pressurized pipe, so that the pressure inside the pressurized pipe can be increased in a short time, and the steam that subsequently enters the pressurized pipe can be pressurized in a short time, thereby accelerating the condensation of the steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a condensate recovery device for a power station air cooling system.

[0017] Figure 2 This is a diagram of the internal structure of the shell of a condensate recovery device in a power plant air cooling system.

[0018] Figure 3 This is a structural diagram of the condensation structure in a condensate recovery device in a power station air cooling system.

[0019] Figure 4 This is a three-dimensional diagram of the condensation structure in a condensate recovery device of a power plant air cooling system.

[0020] Figure 5 This is a diagram of the internal structure of the condensation structure in a condensate recovery device of a power plant air cooling system.

[0021] Figure 6 This is a structural diagram of the cooling pipe in the condensate recovery device of the power station air cooling system.

[0022] Figure 7 This is a diagram of the internal structure of the cooling pipe in the condensate recovery device of the power plant air cooling system.

[0023] Figure 8 This is a cross-sectional view of the cooling inner pipe in a condensate recovery device of a power plant air cooling system.

[0024] Figure 9 A condensate recovery device for a power station air cooling system Figure 7 A magnified schematic diagram of .

[0025] In the figure: 1. Base; 2. Housing; 3. Condensation structure; 4. Delivery pipe; 5. Condensation pipe; 6. Pressurization pipe; 7. Drainage pipe; 8. Guide pipe; 300, steam pipe; 301, heat dissipation shell; 302, water collecting pipe; 303, drainage pipe; 500, cooling pipe; 501, vortex tube; 502, heat source pipe; 503, guide pipe; 504, air intake pipe; 505, connecting pipe; 506, solenoid valve; 507, butt joint pipe; 508, inner sleeve; 509, air intake cavity; 510, cooling inner pipe; 511. Drain outlet; 512. Cooling outer tube; 513. Cold source tube; 514. Turning cover; 515. Transition chamber; 516. Docking port; 517. Sealing head; 518. Air guide port; 519. Circulation tube; 520. Heating tube. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 3 In an embodiment of the present invention, a condensate recovery device for a power plant air-cooling system includes a base 1 and a shell 2. The base 1 is welded from a square steel pipe and has the characteristics of high strength and corrosion resistance. The shell 2 and the base 1 are connected by a plurality of bolts. A condensation structure 3 is symmetrically fixedly connected to the interior of the shell 2. A plurality of condensation pipes 5 for condensing steam are installed inside the condensation structure 3. The plurality of condensation pipes 5 are evenly arranged in the condensation structure 3. The condensation structure 3 includes a steam pipe 300 for channeling and diverting steam. The exterior of the steam pipe 300 is connected to a delivery pipe 4 connected to a steam exhaust pipe via a flange (the steam exhaust pipe is a pipe for discharging steam after work, and the specific prior art will not be described in detail here). See also Figure 4The condensation structure 3 also includes two heat dissipation shells 301 for protecting the condensation tube 5, and the heat dissipation shells 301 also have a heat dissipation function. The heat dissipation shells 301 are made of copper material, which has good heat transfer properties. The two heat dissipation shells 301 are fixedly connected to the outer wall of the steam pipe 300. Specifically, the two heat dissipation shells 301 are symmetrically fixedly connected to the outer wall of the steam pipe 300 in a triangular shape, and the heat dissipation shells 301 are connected to the inner bottom end of the outer shell 2 by bolts. Fixing the heat dissipation shells 301 in a triangular shape on the outer wall of the steam pipe 300 can increase the stability of the entire condensation structure 3. The end of the heat dissipation shell 301 away from the steam pipe 300 is fixedly connected to a water collecting pipe 302, and one end of the water collecting pipe 302 is fixedly connected to a drain pipe 303 for drainage. The drain pipe 303 is connected to an external water collecting tank (the water collecting tank is a water tank for recovering condensed water); Below the steam pipe 300, a pressurizing pipe 6 for further pressurizing the steam is fixedly connected between the two heat dissipation shells 301. A pressure sensor for detecting pressure is installed in the pressurizing pipe 6. The pressurizing pipe 6 is connected to the delivery pipe 4 through a drainage pipe 7, and a guide pipe 8 is also fixedly connected between the drainage pipe 7 and the delivery pipe 4. A guide fan is installed in the guide pipe 8. Specifically, a motor that provides power for the guide fan is fixedly connected to the inside of the guide pipe 8. The motor is wrapped in a waterproof shell, and the output shaft of the motor is connected to the guide fan through a coupling. The waterproof shell is fixedly connected to the inner wall of the guide pipe 8. In order to facilitate the motor Heat dissipation: A heat dissipation window (not shown in the figure) is provided on the outer wall of the guide tube 8, and the heat dissipation window is only connected to the waterproof shell, that is, in this way, steam can be prevented from entering the waterproof shell. In order to prevent the steam in the delivery pipe 4 from being guided into the pressurized pipe 6, a guide fan is also provided at the connection between the delivery pipe 4 and the steam exhaust pipe, and the power of the guide fan between the delivery pipe 4 and the steam exhaust pipe is greater than the power of the guide fan in the guide pipe 8, and the waterproofing method of the guide fan between the delivery pipe 4 and the steam exhaust pipe is the same as that of the guide fan in the guide pipe 8; in order to prevent steam backflow, a one-way valve is installed inside the delivery pipe 4 and the drainage pipe 7; See also Figure 5-Figure 9 The condenser 5 includes a cooling tube 500, the interior of the cooling tube 500 is fixedly connected to a cooling inner tube 510, the exterior of the cooling tube 500 is located inside the heat dissipation shell 301 and is fixedly connected to a vortex tube 501 for cooling the cooling inner tube 510, the cold source tube 513 of the vortex tube 501 is connected to the cooling inner tube 510, and the air intake pipe 504 of the vortex tube 501 is connected to the pressurized tube 6.

[0028] Example 2: Please refer to Figure 5-Figure 9Based on Example 1, the end of the pressurizing tube 6 away from the drainage tube 7 is fixedly connected to the exhaust pipe, and the exhaust pipe is connected to the intake pipe 504 via a connecting pipe 505. Specifically, several intake pipes 504 are connected to the connecting pipe 505, and a solenoid valve 506 is fixedly connected between the exhaust pipe and the intake pipe 504. When the pressure sensor detects that the pressure in the pressurizing tube 6 reaches a threshold, the solenoid valve 506 is opened to allow steam to enter the vortex tube 501 through the intake pipe 504. The vortex tube 501 is located at the lower end of the cooling tube 500, and the cooling tube 500 is fixedly connected to a plugging head 517 at one end away from the vortex tube 501. The plugging head 517 extends into the cooling tube 500 with a cone. The interior of the cooling tube 500 is fixedly connected to an inner sleeve 508. An air inlet cavity 509 is provided between the inner sleeve 508 and the cooling tube 500. The air inlet cavity 509 is connected to the steam pipe 300 through the guide pipe 503, that is, the steam in the steam pipe 300 can enter the air inlet cavity 509 through the guide pipe 503. A plurality of air guide ports 518 are provided at one end of the inner sleeve 508 close to the cone. The plurality of air guide ports 518 are arranged in an array on the surface of the inner sleeve 508. The steam transported to the air inlet cavity 509 by the guide pipe 503 can be transported to the inner sleeve 508 through the plurality of air guide ports 518, wherein the cone can help condensed water to gather and drip. See also Figure 8 and Figure 9 The cooling inner tube 510 is fixedly connected to the inner sleeve 508, and a plurality of small holes are provided at the lower end of the cooling inner tube 510 for discharging water accumulated in the cooling inner tube 510. The cooling inner tube 510 is connected to the cold source tube 513 on the vortex tube 501 through the docking tube 507. A drain port 511 is provided at the inner bottom end of the inner sleeve 508, and the drain port 511 is communicated with the water collecting pipe 302. A cooling outer tube 512 is provided on the outside of the cooling inner tube 510. The cooling outer tube 512 is spirally arranged, and a plurality of small holes are also provided on the outer wall of the cooling outer tube 512 for discharging condensed water in the cooling outer tube 512. The end of the cooling inner tube 510 away from the vortex tube 501 is threadedly connected to a steering cover 514. A sealing ring is provided at the connection between the steering cover 514 and the cooling inner tube 510. A transition chamber 515 is provided inside the steering cover 514. The transition chamber 515 is communicated with the cooling inner tube 510. Two docking ports 516 are provided inside the transition chamber 515, one of which is communicated with the cooling outer tube 512, and the other docking port 516 is in an open state. The condensed water accumulated on the cooling inner tube 510 and the cooling outer tube 512 can be blown through the open docking port 516, thereby helping the condensed water to enter the water collecting pipe 302 through the drain port 511, thereby accelerating the collection of the condensed water. The outside of the pressurized tube 6 is also provided with a spiral heating tube 520 , one end of the heating tube 520 is fixedly connected to the circulation tube 519 , and the heat source tubes 502 in the vortex tubes 501 are all connected to the circulation tube 519 .

[0029] The working principle of the present invention is: When the present invention is used, part of the steam after working will flow into the steam pipe 300 through the delivery pipe 4, and the other part will enter the pressurized pipe 6 through the drainage pipe 7. As the steam in the pressurized pipe 6 increases, the pressure in the pressurized pipe 6 will increase. When the pressure reaches the threshold, the solenoid valve 506 will open. At this time, the pressurized steam will enter the air intake pipe 504 through the connecting pipe 505, and then enter the vortex tube 501 through the air intake pipe 504. At this time, the steam passing through the vortex tube 501 will be divided into cold and hot parts. The hot part will enter the circulation pipe 519 through the heat source pipe 502, and then enter the heating pipe 520 through the circulation pipe 519 to heat the pressurized pipe 6, so that the pressure inside the pressurized pipe 6 can be increased in a short time, and the steam entering the pressurized pipe 6 later can be pressurized in a short time. The cold part will enter the cooling inner tube 510 through the cold source pipe 513. The cooled steam entering the cooling inner tube 510 will enter the cooling outer tube 512 through the transition cavity 515. The steam that has not entered the cooling outer tube 512 will be ejected through the docking port 516, thereby removing the water droplets attached to the cooling inner tube 510 and the cooling outer tube 512, thereby accelerating the collection of condensed water. When both the cooling inner tube 510 and the cooling outer tube 512 are cooled, the water vapor that enters the inner sleeve 508 through the guide tube 503 will be condensed into water droplets more quickly, thereby accelerating the collection of condensed water.

[0030] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A condensate recovery device for a power station air cooling system, comprising a base (1) and a housing (2), characterized in that: A condensation structure (3) is symmetrically fixedly connected to the interior of the housing (2), and a plurality of condensation pipes (5) for condensing steam are installed inside the condensation structure (3). The condensation structure (3) includes a steam pipe (300) for diverting and splitting the steam, and the outside of the steam pipe (300) is connected to a delivery pipe (4) connected to a steam discharge pipe via a flange. The condensation structure (3) further comprises two heat dissipation shells (301) for protecting the condensing tube (5); the two heat dissipation shells (301) are fixedly connected to the outer wall of the steam tube (300); one end of the heat dissipation shell (301) away from the steam tube (300) is fixedly connected to a water collecting pipe (302); one end of the water collecting pipe (302) is fixedly connected to a drainage pipe (303) for drainage; the drainage pipe (303) is connected to an external water collecting tank.

2. The condensate recovery device for a power plant air cooling system according to claim 1, characterized in that: A pressurizing pipe (6) for further pressurizing the steam is fixedly connected between the two heat dissipation shells (301) below the steam pipe (300), and a pressure sensor for detecting the pressure is installed in the pressurizing pipe (6). The pressurizing pipe (6) is connected to the delivery pipe (4) via a drainage pipe (7), and a guide pipe (8) is also fixedly connected between the drainage pipe (7) and the delivery pipe (4), and a guide fan is installed in the guide pipe (8).

3. The condensate recovery device for a power plant air cooling system according to claim 1, characterized in that: The condenser (5) comprises a cooling tube (500), the interior of the cooling tube (500) is fixedly connected to a cooling inner tube (510), the exterior of the cooling tube (500) is located inside the heat dissipation shell (301) and is fixedly connected to a vortex tube (501) for cooling the cooling inner tube (510), the cold source tube (513) of the vortex tube (501) is connected to the cooling inner tube (510), and the air inlet pipe (504) of the vortex tube (501) is connected to the pressurizing pipe (6).

4. The condensate recovery device for a power plant air cooling system according to claim 3, characterized in that: An exhaust pipe is fixedly connected to one end of the pressurizing pipe (6) away from the drainage pipe (7), the exhaust pipe is connected to the air intake pipe (504) via a connecting pipe (505), and a solenoid valve (506) is also fixedly connected between the exhaust pipe and the air intake pipe (504).

5. The condensate recovery device for a power plant air cooling system according to claim 4, characterized in that: The vortex tube (501) is located at the lower end of the cooling tube (500), and a plugging head (517) is fixedly connected to one end of the cooling tube (500) away from the vortex tube (501), and the plugging head (517) extends into the cooling tube (500) with a cone.

6. The condensate recovery device for a power plant air cooling system according to claim 3, characterized in that: An inner sleeve (508) is fixedly connected to the interior of the cooling tube (500), an air intake cavity (509) is provided between the inner sleeve (508) and the cooling tube (500), the air intake cavity (509) is connected to the steam pipe (300) via a guide tube (503), and a plurality of air guide ports (518) are provided at one end of the inner sleeve (508) close to the cone.

7. The condensate recovery device for a power plant air cooling system according to claim 6, characterized in that: The cooling inner tube (510) is fixedly connected to the inner sleeve (508), and a plurality of small holes are provided at the lower end of the cooling inner tube (510). A drainage port (511) is provided at the inner bottom end of the inner sleeve (508), and the drainage port (511) is communicated with the water collecting pipe (302). The outer sleeve of the cooling inner tube (510) is provided with a cooling outer tube (512), and the cooling outer tube (512) is arranged in a spiral shape.

8. The condensate recovery device for a power plant air cooling system according to claim 7, characterized in that: One end of the cooling inner tube (510) away from the vortex tube (501) is threadedly connected to a steering cover (514), and a transition cavity (515) is provided inside the steering cover (514). The transition cavity (515) is communicated with the cooling inner tube (510), and two docking ports (516) are provided inside the transition cavity (515), one of the docking ports (516) is communicated with the cooling outer tube (512), and the other docking port (516) is in an open state.

9. The condensate recovery device for a power plant air cooling system according to claim 3, characterized in that: The outside of the pressurized tube (6) is also provided with a spiral heating tube (520), one end of the heating tube (520) is fixedly connected to the circulation tube (519), and the heat source tubes (502) in the plurality of vortex tubes (501) are all connected to the circulation tube (519).

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