A condenser water side vacuum system

Abstract

The invention discloses a condenser water side vacuum pumping system, comprising a condenser shell, and a water tank symmetrically arranged on both sides of the condenser shell, a flow control suction device is arranged in the water tank, and the flow control suction device comprises a suction box, the top of the suction box is connected to a gas transmission pipeline, and the other end of the gas transmission pipeline is connected to a vacuum tank; a water baffle is arranged in the vacuum tank, an opening and closing component is arranged on the outer wall of the vacuum tank, a rubber elastic sheet is arranged on the inner wall of the vacuum tank, a lifting component is arranged on the bottom of the inner wall of the vacuum tank, and a pressurizing component and a drainage component are arranged on the outer wall of the vacuum tank; the vacuum tank is connected to a water ring vacuum pump through a pipeline, and the water ring vacuum pump is connected to a gas-water separator shell through a pipeline, and the exhaust end of the gas-water separator shell is connected to the pressurizing component through a pipeline, and the drainage end of the gas-water separator shell is connected to the water ring vacuum pump through a water return component. The invention is a vacuum pumping system that is convenient for continuously extracting gas in a condenser and for secondary utilization of the extracted gas.

Description

Technical Field

[0001] The invention mainly relates to the technical field of condensers, and in particular to a condenser water side vacuum pumping system. Background Art

[0002] The function of the condenser vacuum system in a modern thermal power plant is to remove the non-condensable gases that enter the condenser with the steam and the air that leaks in from the atmosphere during the startup and operation of the unit, to establish and maintain the condenser vacuum and to improve the economy of the steam turbine unit.

[0003] According to the condenser vacuum system and condenser vacuum method provided by the patent document with application number CN201610485496.5, the system includes a vacuum ring pipe, multiple vacuum branches respectively drawn from the shell side of the condenser and a vacuum pump connected to the vacuum ring pipe, and the vacuum branches are all connected to the vacuum ring pipe; on the vacuum ring pipe, between every two adjacent vacuum branch access points connected to different condensers, a group of two series-connected vacuum pump isolation valves are arranged; between the two vacuum pump isolation valves of each group, a vacuum pump exhaust pipe connected to the vacuum pump is arranged; and each vacuum branch pipe is provided with a branch pipe isolation valve. The system can avoid the problem of unbalanced back pressure between condensers when a single circulating water pump is out of service.

[0004] The system in the above patent can avoid the problem of back pressure imbalance between condensers when a single circulating water pump is shut down, but it is not convenient for continuous and rapid extraction of non-condensable gas in the condenser, and it is not convenient for secondary utilization of the extracted non-condensable gas. Summary of the invention

[0005] The present invention mainly provides a condenser water side vacuum pumping system to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A condenser water side vacuum system, comprising a condenser shell, and water tanks symmetrically arranged on both sides of the condenser shell, wherein a flow control suction device is arranged in the water tank, wherein the flow control suction device comprises a suction box arranged at the top of the inner wall of the water tank, a plurality of suction pipes whose tops are connected to the bottom of the suction box, and a flow limiting component arranged at the outer wall of the water tank and whose execution end extends into the water tank, wherein the flow limiting component is used to limit the flow of the suction pipe, wherein the top of the suction box is connected to a gas pipeline, and the other end of the gas pipeline is connected to a vacuum tank, and a cooling component and a hydrophobic component are arranged in sequence on the outer wall of the gas pipeline in a direction away from the suction box;

[0008] A water baffle is provided inside the vacuum tank, a plurality of water leakage holes are formed on the water baffle, an opening and closing component with an execution end extending to the lower part of the water leakage hole is provided on the outer wall of the vacuum tank, a rubber elastic sheet is provided on the inner wall of the vacuum tank and located below the opening and closing component, a lifting component is provided at the bottom of the inner wall of the vacuum tank, the lifting component is used to drive the rubber elastic sheet to extend downward, and a pressurizing component and a drainage component are provided on the outer wall of the vacuum tank with an execution end extending into the vacuum tank and located below the opening and closing component;

[0009] The vacuum tank is connected to the water ring vacuum pump through a pipeline, the water ring vacuum pump is connected to the gas-water separator housing through a pipeline, the exhaust end of the gas-water separator housing is connected to the boost component through a pipeline, and the drain end of the gas-water separator housing is connected to the water ring vacuum pump through a water return component.

[0010] Preferably, the flow-limiting component comprises a positioning box connected to the outer wall of the water tank, a vertical plate arranged on the inner wall of the positioning box, a driving cylinder arranged on the outer wall of the positioning box and used to drive the vertical plate to move horizontally, and a horizontal plate arranged on the side of the vertical plate away from the driving cylinder, wherein a plurality of flow-limiting holes are formed on the horizontal plate. In this preferred embodiment, the flow-limiting component is used to facilitate flow limiting of the suction pipe on the side with less non-condensable gas.

[0011] Preferably, a pressure measuring component is provided in the water tank, and the pressure measuring component includes a first pressure sensor provided on the top of the inner wall of the water tank. In this preferred embodiment, the air pressure in the water tank is conveniently measured by the first pressure sensor, so as to compare the amount of non-condensable gas in the water tanks on both sides.

[0012] Preferably, the cooling component includes a heat-insulating cover tube sleeved on the outer wall of the gas pipeline, and an evaporator and a temperature sensor arranged on the inner wall of the heat-insulating cover tube. In this preferred embodiment, the cooling component facilitates pre-cooling of the sucked gas, increases the suction efficiency, and facilitates water vapor separation.

[0013] Preferably, the hydrophobic component comprises a float type automatic water blocking and exhaust valve and a butterfly valve which are sequentially arranged on the outer wall of the gas pipeline. In this preferred embodiment, the hydrophobic component can prevent the discharge of circulating water.

[0014] Preferably, the opening and closing component includes a slide rail provided at the bottom of the water baffle, an L-shaped sealing plate with one end penetrating the water baffle and slidably connected to the slide rail, and a telescopic cylinder provided on the outer wall of the L-shaped sealing plate and with the execution end penetrating the L-shaped sealing plate and connected to the outer wall of the vacuum tank. In this preferred embodiment, the opening and closing component is used to open or close the water leakage hole.

[0015] Preferably, the lifting component includes a lifting plate whose top is connected to the bottom of the rubber elastic sheet, and a hydraulic cylinder disposed at the bottom of the inner wall of the vacuum tank and whose execution end is connected to the bottom of the lifting plate. In this preferred embodiment, the rubber elastic sheet is extended downward by the lifting component to facilitate mechanical adjustment of the water level and air pressure in the vacuum tank.

[0016] Preferably, the pressurizing component includes an air storage tank located on one side of the vacuum tank, and an air compressor disposed on the top of the air storage tank and having an exhaust end connected to the air storage tank through a pipeline, the air inlet end of the air compressor is connected to the exhaust end of the gas-water separator housing through a pipeline, and the side wall of the air storage tank is connected to the vacuum tank through a pipeline. In this preferred embodiment, pressurizing and draining water is facilitated by the pressurizing component.

[0017] Preferably, the drainage component includes a drainage pipe connected to the side wall of the vacuum tank, an electrically controlled valve disposed on the outer wall of the drainage pipe, and a liquid level sensor and a second pressure sensor disposed on the outer wall of the vacuum tank and located above the water barrier. In this preferred embodiment, the drainage component facilitates the drainage of water accumulated in the vacuum tank.

[0018] Preferably, the water return component includes a water pipe with one end connected to the drainage end of the gas-water separator housing and the other end connected to the water ring vacuum pump, a cooling cover pipe sleeved on the outer wall of the water pipe, and a water inlet pipe and a water outlet pipe connected to the outer wall of the cooling cover pipe. In this preferred embodiment, the water return component facilitates the introduction of the liquid after gas-water separation into the water ring vacuum pump to serve as the working fluid of the water ring vacuum pump.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The system of the present invention facilitates continuous and rapid extraction of non-condensable gas in the condenser, and facilitates secondary utilization of the extracted non-condensable gas;

[0021] The flow-limiting component is used to limit the flow of the suction pipe on the side with less non-condensable gas, so as to focus on the suction at the position with more non-condensable gas. The first pressure sensor is used to measure the air pressure in the water tank, so as to compare the amount of non-condensable gas in the water tanks on both sides. The cooling component is used to pre-cool the sucked gas, so as to increase the suction efficiency and facilitate water-gas separation. The hydrophobic component can prevent the discharge of circulating water. The opening and closing component is used to open or close the water leakage hole, so that the suction work can continue when the vacuum tank is drained. The lifting component is used to extend the rubber elastic sheet downward, so as to mechanically adjust the water level and air pressure in the vacuum tank. The boosting component is used to boost and drain, and the drainage component is used to drain the accumulated water in the vacuum tank. The return water component is used to introduce the liquid after gas-water separation into the water ring vacuum pump as the working fluid of the water ring vacuum pump, and the exhaust gas of the gas-water separator shell can be used as the gas source of the boosting component.

[0022] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric diagram of the overall structure of the present invention;

[0024] Figure 2 It is the axonometric diagram of the main structure of the present invention;

[0025] Figure 3 It is an exploded view of the structure of the flow control suction device of the present invention;

[0026] Figure 4 It is an exploded diagram of the vacuum tank structure of the present invention;

[0027] Figure 5 It is a top view of the overall structure of the present invention;

[0028] Figure 6 It is a cross-sectional view of the structure of the flow control suction device of the present invention;

[0029] Figure 7 It is a cross-sectional view of the overall structure of the present invention;

[0030] Figure 8 It is a cross-sectional view of the vacuum tank structure of the present invention.

[0031] Description of the drawings: 10, condenser housing; 11, water tank; 20, flow control suction device; 21, suction box; 22, suction pipe; 23, flow limiting component; 231, positioning box; 232, vertical plate; 233, drive cylinder; 234, horizontal plate; 235, flow limiting hole; 24, gas pipeline; 25, cooling component; 251, insulation cover pipe; 252, evaporator; 253, temperature sensor; 26, water-repellent component; 261, float type automatic water-blocking exhaust valve; 262, butterfly valve; 27, pressure measuring component; 271, first pressure sensor; 30, vacuum tank; 31, Water-blocking plate; 311, water leakage hole; 32, opening and closing component; 321, slide rail; 322, L-shaped sealing plate; 323, telescopic cylinder; 33, rubber elastic sheet; 34, lifting component; 341, lifting plate; 342, hydraulic cylinder; 35, pressurizing component; 351, air storage tank; 352, air compressor; 36, drainage component; 361, drainage pipe; 362, electric control valve; 363, liquid level sensor; 364, second pressure sensor; 40, water ring vacuum pump; 50, gas-water separator housing; 51, return water component; 511, water pipe; 512, cooling hood pipe. DETAILED DESCRIPTION

[0032] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] Please refer to the attached Figure 1 , 2As shown in Figures 3, 5, 6 and 7, in a preferred embodiment of the present invention, a condenser water side vacuum system comprises a condenser shell 10, and a water tank 11 symmetrically arranged on both sides of the condenser shell 10, wherein a flow control suction device 20 is arranged in the water tank 11, wherein the flow control suction device 20 comprises a suction box 21 arranged at the top of the inner wall of the water tank 11, a plurality of suction pipes 22 connected to the bottom of the suction box 21 at the top, and a flow limiting component 23 arranged at the outer wall of the water tank 11 and with the execution end extending into the water tank 11, wherein the flow limiting component 23 is used to limit the flow of the suction pipe 22, wherein the top of the suction box 21 is connected to the gas pipeline 24, and the other end of the gas pipeline 24 is connected to the vacuum tank 30, and a cooling component 25 and a hydrophobic component 26 are arranged in sequence on the outer wall of the gas pipeline 24 and in a direction away from the suction box 21; the flow limiting component 23 includes The water tank 11 includes a positioning box 231 connected to the outer wall of the water tank 11, a vertical plate 232 arranged on the inner wall of the positioning box 231, a driving cylinder 233 arranged on the outer wall of the positioning box 231 and used to drive the vertical plate 232 to move horizontally, and a horizontal plate 234 arranged on the side of the vertical plate 232 away from the driving cylinder 233, and a plurality of flow limiting holes 235 are penetrated on the horizontal plate 234. A pressure measuring component 27 is provided in the water tank 11, and the pressure measuring component 27 includes a first pressure sensor 271 arranged on the top of the inner wall of the water tank 11. The cooling component 25 includes a heat preservation cover tube 251 sleeved on the outer wall of the gas pipeline 24, and an evaporator 252 and a temperature sensor 253 arranged on the inner wall of the heat preservation cover tube 251. The hydrophobic component 26 includes a float-type automatic water-blocking and exhaust valve 261 and a butterfly valve 262 arranged on the outer wall of the gas pipeline 24 in sequence.

[0036] It should be noted that, in this embodiment, when the vacuum system is started, the water ring vacuum pump 40 is started and the two water ring vacuum pumps 40 are used as one and the other as a standby. By setting the start priority, the use is switched. At this time, the gas in the water tank 11 enters the gas-water separator housing 50 through the flow control suction device 20, the vacuum tank 30 and the water ring vacuum pump 40;

[0037] When the flow control suction device 20 is working, the butterfly valve 262 is opened, and the gas passes through the suction pipe 22, the suction box 21, the gas pipeline 24, the cooling component 25 and the float type automatic water blocking exhaust valve 261 in sequence and enters the vacuum tank 30;

[0038] Furthermore, the float type automatic water blocking and air exhaust valve 261 can block the circulating water and exhaust the air;

[0039] Furthermore, the controller receives and compares the pressure data of the two first pressure sensors 271, and triggers the flow limiting component 23 corresponding to the first pressure sensor 271 with the smaller pressure data, so as to focus on suctioning the position with more non-condensable gas. When the flow limiting component 23 works, the execution end of the driving cylinder 233 drives the vertical plate 232 to move until the flow limiting hole 235 on the horizontal plate 234 coincides with the suction pipe 22.

[0040] Furthermore, the cooling component 25 facilitates pre-cooling of the sucked gas, thereby increasing the suction efficiency and facilitating water vapor separation. When the cooling component 25 is working, the controller receives the temperature data of the temperature sensor 253 and triggers the refrigeration system connected to the evaporator 252 until the temperature data reaches the set value.

[0041] Please refer to the attached Figure 2 , 4 As shown in Figures 7 and 8, in another preferred embodiment of the present invention, a water baffle 31 is provided in the vacuum tank 30, a plurality of water leakage holes 311 are provided on the water baffle 31, an opening and closing component 32 with an execution end extending to the lower part of the water leakage hole 311 is provided on the outer wall of the vacuum tank 30, a rubber elastic sheet 33 is provided on the inner wall of the vacuum tank 30 and located at the lower part of the opening and closing component 32, a lifting component 34 is provided at the bottom of the inner wall of the vacuum tank 30, the lifting component 34 is used to drive the rubber elastic sheet 33 to extend downward, a boosting component 35 and a drainage component 36 are provided on the outer wall of the vacuum tank 30 with an execution end extending into the vacuum tank 30 and located at the lower part of the opening and closing component 32; the opening and closing component 32 includes a slide rail 321 provided at the bottom of the water baffle 31, an L-shaped sealing plate 322 with one end penetrating the water baffle 31 and slidably connected to the slide rail 321, and a sealing plate 322 provided on the outer wall of the L-shaped sealing plate 322 and having an execution end penetrating the L-shaped sealing plate 322 and connected to the The telescopic cylinder 323 is connected to the outer wall of the vacuum tank 30, the lifting component 34 includes a lifting plate 341 whose top is connected to the bottom of the rubber elastic sheet 33, and a hydraulic cylinder 342 arranged at the bottom of the inner wall of the vacuum tank 30 and the execution end is connected to the bottom of the lifting plate 341, the boost component 35 includes an air storage tank 351 located on one side of the vacuum tank 30, and an air compressor 352 arranged at the top of the air storage tank 351 and the exhaust end is connected to the air storage tank 351 through a pipeline, the air inlet end of the air compressor 352 is connected to the exhaust end of the gas-water separator housing 50 through a pipeline, the side wall of the air storage tank 351 is connected to the vacuum tank 30 through a pipeline, the drainage component 36 includes a drainage pipe 361 connected to the side wall of the vacuum tank 30, an electric control valve 362 arranged on the outer wall of the drainage pipe 361, and a liquid level sensor 363 and a second pressure sensor 364 are arranged on the outer wall of the vacuum tank 30 and located on the upper part of the baffle 31.

[0042] It should be noted that, in the present embodiment, after the water ring vacuum pump 40 is working, negative pressure is generated in the vacuum tank 30 to produce a suction effect. During suction, the controller receives the pressure data of the second pressure sensor 364 and triggers the lifting component 34 to extend the rubber elastic sheet 33 downward to mechanically adjust the pressure in the vacuum tank 30 so as to increase or decrease the suction effect. When drainage is required, the controller receives the water level information of the liquid level sensor 363, and triggers the lifting component 34 when the water level information is greater than the set value to extend the rubber elastic sheet 33 downward to lower the water level. After the water level drops, the opening and closing component 32 seals the water leakage hole 311, the electric control valve 362 opens, the pressurizing component 35 pressurizes, and the accumulated water is discharged through the drain pipe 361.

[0043] Furthermore, when the lifting component 34 is working, the hydraulic cylinder 342 drives the lifting plate 341 to move up and down, and the lifting plate 341 drives the rubber elastic sheet 33 to extend or retract;

[0044] Furthermore, when the opening and closing component 32 is working, the execution end of the telescopic cylinder 323 drives the L-shaped sealing plate 322 to move, and the L-shaped sealing plate 322 seals the water leakage hole 311;

[0045] Furthermore, the air compressor 352 compresses the air, and the compressed air is discharged into the air storage tank 351 , and the air storage tank 351 discharges the compressed air into the vacuum tank 30 .

[0046] Please refer to the attached Figure 1 , 2 As shown in Figure 5, in another preferred embodiment of the present invention, the vacuum tank 30 is connected to the water ring vacuum pump 40 through a pipeline, the water ring vacuum pump 40 is connected to the gas-water separator housing 50 through a pipeline, the exhaust end of the gas-water separator housing 50 is connected to the boost component 35 through a pipeline, and the drainage end of the gas-water separator housing 50 is connected to the water ring vacuum pump 40 through a return water component 51, and the return water component 51 includes a water pipe 511 with one end connected to the drainage end of the gas-water separator housing 50 and the other end connected to the water ring vacuum pump 40, a cooling hood pipe 512 sleeved on the outer wall of the water pipe 511, and a water inlet pipe and a water outlet pipe connected to the outer wall of the cooling hood pipe 512.

[0047] It should be noted that, in the present embodiment, the sucked gas is discharged into the gas-water separator housing 50, and the gas-water separator housing 50 separates and discharges the water vapor. The exhaust gas can enter the air inlet end of the air compressor 352 through the pipeline to serve as the gas source, and the drain water enters the water ring vacuum pump 40 through the water pipe 511 to serve as the working fluid of the water ring vacuum pump 40. When the drain water passes through the water pipe 511, cooling water can be circulated into the cooling hood pipe 512 to cool the drain water.

[0048] The specific process of the present invention is as follows:

[0049] The controller model is "6ES7315-2EH14-0AB0", the temperature sensor 253 model is "DS18B20", the first pressure sensor 271 model is "BRW800-2100", the liquid level sensor 363 model is "RKL-03", and the second pressure sensor 364 model is "BRW800-2100".

[0050] When the vacuum system is started, the water ring vacuum pump 40 is started and two water ring vacuum pumps 40 are used as one and the other as a standby. By setting the start priority, the use is switched. At this time, the gas in the water tank 11 enters the gas-water separator housing 50 through the flow control suction device 20, the vacuum tank 30 and the water ring vacuum pump 40;

[0051] When the flow control suction device 20 is working, the butterfly valve 262 is opened, and the gas passes through the suction pipe 22, the suction box 21, the gas pipeline 24, the cooling component 25 and the float type automatic water blocking exhaust valve 261 in sequence and enters the vacuum tank 30;

[0052] The float type automatic water blocking and air exhaust valve 261 can block the circulating water and exhaust the air;

[0053] The controller receives and compares the pressure data of the two first pressure sensors 271, and triggers the flow limiting component 23 corresponding to the first pressure sensor 271 with the smaller pressure data, so as to focus on suctioning the position with more non-condensable gas. When the flow limiting component 23 works, the actuator end of the driving cylinder 233 drives the vertical plate 232 to move until the flow limiting hole 235 on the horizontal plate 234 coincides with the suction pipe 22.

[0054] The cooling component 25 is convenient for pre-cooling the sucked gas, so as to increase the suction efficiency and facilitate water-gas separation. When the cooling component 25 is working, the controller receives the temperature data of the temperature sensor 253 and triggers the refrigeration system connected to the evaporator 252 until the temperature data reaches the set value;

[0055] After the water ring vacuum pump 40 works, negative pressure is generated in the vacuum tank 30 to produce a suction effect. During suction, the controller receives the pressure data of the second pressure sensor 364 and triggers the lifting component 34 to extend the rubber elastic sheet 33 downward to mechanically adjust the pressure in the vacuum tank 30 so as to increase or decrease the suction effect. When drainage is required, the controller receives the water level information of the liquid level sensor 363 and triggers the lifting component 34 when the water level information is greater than the set value to extend the rubber elastic sheet 33 downward to lower the water level. After the water level drops, the opening and closing component 32 seals the water leakage hole 311, the electric control valve 362 opens, the pressurizing component 35 pressurizes, and the accumulated water is discharged through the drain pipe 361.

[0056] When the lifting component 34 is working, the hydraulic cylinder 342 drives the lifting plate 341 to move up and down, and the lifting plate 341 drives the rubber elastic sheet 33 to extend or retract;

[0057] When the opening and closing component 32 is working, the actuator end of the telescopic cylinder 323 drives the L-shaped sealing plate 322 to move, and the L-shaped sealing plate 322 seals the water leakage hole 311;

[0058] The air compressor 352 compresses the air, and the compressed air is discharged into the air storage tank 351, and the air storage tank 351 discharges the compressed air into the vacuum tank 30;

[0059] The sucked gas is discharged into the gas-water separator shell 50, and the gas-water separator shell 50 separates and discharges the water gas. The exhaust gas can enter the air inlet end of the air compressor 352 through the pipeline to serve as the gas source, and the drain water enters the water ring vacuum pump 40 through the water pipe 511 to serve as the working fluid of the water ring vacuum pump 40. When the drain water passes through the water pipe 511, cooling water can be circulated into the cooling hood pipe 512 to cool the drain water.

[0060] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A condenser water side vacuum pumping system, comprising a condenser shell (10), and water tanks (11) symmetrically arranged on both sides of the condenser shell (10), characterized in that The water tank (11) is provided with a flow control suction device (20), the flow control suction device (20) comprising a suction box (21) arranged at the top of the inner wall of the water tank (11), a plurality of suction pipes (22) whose top is connected to the bottom of the suction box (21), and a flow limiting component (23) arranged at the outer wall of the water tank (11) and whose execution end extends into the water tank (11), the flow limiting component (23) being used to limit the flow of the suction pipe (22), the top of the suction box (21) being connected to an air pipeline (24), the other end of the air pipeline (24) being connected to a vacuum tank (30), and a cooling component (25) and a hydrophobic component (26) being provided on the outer wall of the air pipeline (24) in a direction away from the suction box (21) in sequence; The vacuum tank (30) is provided with a water baffle (31) inside, and a plurality of water leakage holes (311) are formed on the water baffle (31); an opening and closing component (32) having an execution end extending to the lower part of the water leakage hole (311) is provided on the outer wall of the vacuum tank (30); a rubber elastic sheet (33) is provided on the inner wall of the vacuum tank (30) and located below the opening and closing component (32); a lifting component (34) is provided at the bottom of the inner wall of the vacuum tank (30); the lifting component (34) is used to drive the rubber elastic sheet (33) to extend downward; and a pressurizing component (35) and a drainage component (36) are provided on the outer wall of the vacuum tank (30) and the execution end extends into the vacuum tank (30) and located below the opening and closing component (32); The vacuum tank (30) is connected to a water ring vacuum pump (40) via a pipeline, the water ring vacuum pump (40) is connected to a gas-water separator housing (50) via a pipeline, an exhaust end of the gas-water separator housing (50) is connected to the pressurizing component (35) via a pipeline, and a drainage end of the gas-water separator housing (50) is connected to the water ring vacuum pump (40) via a water return component (51), and the flow limiting component (23) comprises a positioning box (231) connected to the outer wall of the water tank (11), a vertical plate (232) arranged on the inner wall of the positioning box (231), and a vertical plate (232) arranged on the outer wall of the positioning box (231) and used to drive the positioning box (231). A drive cylinder (233) for horizontal movement of the vertical plate (232), and a horizontal plate (234) arranged on the side of the vertical plate (232) away from the drive cylinder (233), wherein a plurality of flow limiting holes (235) are penetrated on the horizontal plate (234), and the opening and closing component (32) comprises a slide rail (321) arranged at the bottom of the water baffle (31), an L-shaped sealing plate (322) one end of which passes through the water baffle (31) and is slidably connected to the slide rail (321), and a telescopic cylinder (323) arranged on the outer wall of the L-shaped sealing plate (322) and the execution end of which passes through the L-shaped sealing plate (322) and is connected to the outer wall of the vacuum tank (30).

2. A condenser water side vacuum pumping system according to claim 1, characterized in that: A pressure measuring component (27) is provided in the water tank (11), and the pressure measuring component (27) comprises a first pressure sensor (271) provided on the top of the inner wall of the water tank (11).

3. A condenser water side vacuum pumping system according to claim 1, characterized in that: The cooling component (25) comprises a heat-insulating cover pipe (251) sleeved on the outer wall of the gas transmission pipeline (24), and an evaporator (252) and a temperature sensor (253) arranged on the inner wall of the heat-insulating cover pipe (251).

4. A condenser water side vacuum pumping system according to claim 1, characterized in that: The hydrophobic component (26) comprises a float-type automatic water-blocking and air-exhaust valve (261) and a butterfly valve (262) which are sequentially arranged on the outer wall of the gas transmission pipeline (24).

5. A condenser water side vacuum pumping system according to claim 1, characterized in that: The lifting component (34) comprises a lifting plate (341) whose top is connected to the bottom of the rubber elastic sheet (33), and a hydraulic cylinder (342) which is arranged at the bottom of the inner wall of the vacuum tank (30) and whose execution end is connected to the bottom of the lifting plate (341).

6. A condenser water side vacuum pumping system according to claim 1, characterized in that: The pressurizing component (35) comprises an air storage tank (351) located on one side of the vacuum tank (30), and an air compressor (352) located on the top of the air storage tank (351) and having an exhaust end connected to the air storage tank (351) via a pipeline, the air intake end of the air compressor (352) being connected to the exhaust end of the air-water separator housing (50) via a pipeline, and the side wall of the air storage tank (351) being connected to the vacuum tank (30) via a pipeline.

7. A condenser water side vacuum pumping system according to claim 1, characterized in that: The drainage component (36) includes a drainage pipe (361) connected to the side wall of the vacuum tank (30), an electrically controlled valve (362) arranged on the outer wall of the drainage pipe (361), and a liquid level sensor (363) and a second pressure sensor (364) arranged on the outer wall of the vacuum tank (30) and located above the baffle (31).

8. A condenser water side vacuum pumping system according to claim 1, characterized in that: The water return component (51) comprises a water delivery pipe (511) having one end connected to a drainage end of the gas-water separator housing (50) and the other end connected to the water ring vacuum pump (40), a cooling hood pipe (512) sleeved on the outer wall of the water delivery pipe (511), and a water inlet pipe and a water outlet pipe connected to the outer wall of the cooling hood pipe (512).

Images