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CN-122015561-A - Siphon device of cooling tower of power plant

CN122015561ACN 122015561 ACN122015561 ACN 122015561ACN-122015561-A

Abstract

The invention relates to the technical field of cooling towers of power plants and discloses a siphon device of the cooling towers of the power plants, which comprises a water jet air extractor, a water injection door, a pipeline filter cylinder, an air extraction isolation valve, a pipeline stop valve, a vacuum gauge, a siphon breaking valve, an inner periphery water distribution control valve and a pipeline, wherein the water injection door is communicated with the water inlet end of the water jet air extractor, the pipeline filter cylinder is connected between the water injection door and the water injection door, a filter screen is arranged in an inner cavity of the water injection door, the air extraction isolation valve is communicated with the water outlet end of the water jet air extractor and is communicated with the pipeline stop valve, the vacuum gauge and the siphon breaking valve are arranged between the water injection door and the water injection door, the inner periphery water distribution control valve is arranged below the siphon breaking valve, all components are communicated through the pipeline, the device forms a complete transmission loop, the running is guaranteed to be consistent and stable, the valves are reasonably distributed to realize effective control, and are convenient for adjusting inner periphery water distribution, and the controllability is improved to adapt to the cooling towers.

Inventors

  • AN RUSHAN
  • WANG HONG
  • LIU WEI
  • GUO RUITAO
  • YANG ZIJIAN
  • MOU WENLIANG

Assignees

  • 河北邯峰发电有限责任公司

Dates

Publication Date
20260512
Application Date
20260128

Claims (10)

  1. 1. A power plant cooling tower siphon apparatus, comprising: The water injection air extractor (1) and a water injection door (3) communicated with the water inlet end of the water injection air extractor (1), a pipeline filter cylinder (2) is communicated between the water injection air extractor (1) and the water injection door (3), and a filter screen (16) is arranged in the inner cavity of the pipeline filter cylinder (2); the air extraction isolation valve (4) is communicated with the water outlet end of the water jet air extractor (1), the air extraction isolation valve (4) is communicated with the pipeline stop valve (5), and a vacuum gauge (6) is additionally arranged between the air extraction isolation valve (4) and the pipeline stop valve (5); The siphon break valve (7) is communicated between the air suction isolation valve (4) and the pipeline stop valve (5), an inner periphery water distribution control valve (8) is additionally arranged below the siphon break valve (7), and a pipeline (9) is connected between the air suction device (1), the water injection door (3), the air suction isolation valve (4), the pipeline stop valve (5), the siphon break valve (7) and the inner periphery water distribution control valve (8) in a communicated mode, and the vacuum gauge (6) is arranged at a position corresponding to the surface of the pipeline (9).
  2. 2. The siphon device for the cooling tower of the power plant according to claim 1, wherein the two sides of the pipeline filter cylinder (2) are provided with slag discharge ports (15), and the center of the surface of the pipeline filter cylinder (2) is provided with a fixed ring plate (10).
  3. 3. The siphon device for cooling towers of power plants according to claim 2, wherein the surface of the pipe filter cartridge (2) is sleeved with a sealing ring plate (11), and a sealing gasket (14) is arranged on the inner circumferential surface of the sealing ring plate (11).
  4. 4. The siphon device for cooling tower of power plant according to claim 3, wherein the lower part of the sealing ring plate (11) is tightly attached to the upper part of the fixed ring plate (10), and the inner side surface of the sealing gasket (14) is tightly attached to the discharge end of the slag discharge port (15).
  5. 5. The siphon device for the cooling tower of the power plant according to claim 2, wherein the upper part of the pipeline filter cylinder (2) is rotatably connected with an outer rotating ring (12), a sealing ring is additionally arranged between the outer rotating ring (12) and the pipeline filter cylinder (2), and anti-skid patterns (13) are formed on the outer surface of the outer rotating ring (12).
  6. 6. The siphon device for the cooling tower of the power plant according to claim 5, wherein the whole filter screen (16) is in a conical design, the surface of the filter screen (16) is in sliding fit with the scraping plate (17), a connecting rod (18) is arranged on the outer side of the scraping plate (17), the connecting rod (18) is connected with the outer rotating ring (12), and the bottom end of the surface of the filter screen (16) corresponds to the feeding end position of the slag discharging port (15).
  7. 7. The siphon device for the cooling tower of the power plant according to claim 1, wherein a guide cover (26) is additionally arranged between the water jet air extractor (1) and the pipeline filter cylinder (2), guide vanes (27) are additionally arranged in an inner cavity of the guide cover (26), and the guide vanes (27) are integrally in a spiral design.
  8. 8. The siphon device for cooling tower of power plant according to claim 1, wherein the upper part and the lower part of the water jet air extractor (1) are provided with fixing seats (20), connecting columns (19) are rotatably connected between the adjacent fixing seats (20), and torsion springs are additionally arranged between the fixing seats (20) and the connecting columns (19).
  9. 9. The siphon device for cooling tower of power plant according to claim 8, wherein the outer end of the connecting column (19) is provided with an outer connecting seat (21), the center of the outer connecting seat (21) is slidably connected with a guide column (22), the inner end of the guide column (22) is provided with an arc-shaped clamping plate (25), and the arc-shaped clamping plate (25) is tightly attached to the surface of the pipeline (9).
  10. 10. The siphon device for the cooling tower of the power plant according to claim 9, wherein the surface of the guide post (22) is sleeved with a buffer spring (23), two ends of the buffer spring (23) are respectively attached to the outer connecting seat (21) and the arc-shaped clamping plate (25), and rubber pads (24) are additionally arranged at attaching positions of the buffer spring (23) and the outer connecting seat (21) and the arc-shaped clamping plate (25).

Description

Siphon device of cooling tower of power plant Technical Field The invention relates to the technical field of cooling towers of power plants, in particular to a siphon device of a cooling tower of a power plant. Background The siphon device of the cooling water tower of the power plant is an important device for ensuring the efficient operation of a cooling system in the fields of thermal power generation and the like, accelerates the circulation flow of cooling water in the cooling water tower by constructing a siphon effect, and promotes the heat exchange of the cooling water and air, thereby realizing the effective heat dissipation of the operation heat of the power generation equipment, directly relating to the operation stability and the energy utilization efficiency of a power plant unit, and occupying the core position in the cooling system architecture of industrial power generation. In the prior art, basic components such as a water jet air extractor, various control valves and connecting pipelines are arranged, but the design of pipeline connecting paths among the components is not optimized enough, local obstruction of air flow and water flow transmission is easy to form, the cooperative cooperation among the components is caused to have a disjoint, the problem of transmission interruption or efficiency attenuation is often caused in the running process of the device, and the continuity and stability of the whole running are influenced. A siphon device for a cooling tower of a power plant is provided. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a siphon device of a cooling tower of a power plant, which aims to solve the technical problem that the continuity and stability of the whole operation are affected. In order to achieve the purpose, the invention provides the following technical scheme that the siphon device of the cooling tower of the power plant comprises: The water injection air extractor and the water injection door are communicated with the water inlet end of the water injection air extractor, a pipeline filter cylinder is communicated between the water injection air extractor and the water injection door, and a filter screen is arranged in the inner cavity of the pipeline filter cylinder; the air extraction isolation valve is communicated with the water outlet end of the water jet air extractor, is communicated with the pipeline stop valve, and is additionally provided with a vacuum gauge between the air extraction isolation valve and the pipeline stop valve; The siphon break valve is communicated between the air extraction isolation valve and the pipeline stop valve, an inner-periphery water distribution control valve is additionally arranged below the siphon break valve, a pipeline is communicated and connected among the water jet air extractor, the water injection gate, the air extraction isolation valve, the pipeline stop valve, the siphon break valve and the inner-periphery water distribution control valve, and the vacuum gauge is arranged at a position corresponding to the surface of the pipeline. When the inner periphery of the pipeline is put into operation for water distribution, a water injection door is operated, water is driven to flow to the water jet air extractor through a pipeline, the water flows through a pipeline filter cylinder, and impurities are filtered by a filter screen in the inner cavity of the pipeline filter cylinder; opening an air extraction isolation valve and a pipeline stop valve, starting the water jet air extractor to operate, driving the siphon system to form a vacuum environment, and monitoring the vacuum state by a vacuum meter in real time and feeding back; opening an inner periphery water distribution control valve, and driving water flow through a pipeline to realize normal operation of inner periphery water distribution; When the siphon is required to be destroyed, the air extraction isolation valve and the pipeline stop valve are closed, the siphon destruction valve is opened, air is driven to enter the siphon system, the vacuum state is destroyed, then the inner periphery water distribution control valve is closed, and the inner periphery water distribution is stopped. Preferably, the two sides of the pipeline filter cylinder are provided with slag discharging ports, and the center of the surface of the pipeline filter cylinder is provided with a fixed ring plate. The central positioning design of the fixed ring plate can ensure the installation accuracy of a subsequent assembly structure, reduce the problems of sealing failure or operation blocking caused by structural deviation and provide basic guarantee for the stability of the integral operation of equipment. Preferably, the surface of the pipeline filter cylinder is sleeved with a sealing ring plate, and a sealing gasket is arranged on the inner circumferential surface of the sealing ring plate. The combined design of the sealing ring plate