Vacuum drainage device
A vacuum and vacuum tank technology, applied in the field of vacuum drainage devices, can solve problems such as inconvenient operation, failure to meet modern engineering, low efficiency, etc., and achieve the effects of improving service life, high operating efficiency, and easy operation
Inactive Publication Date: 2014-12-24
STATE GRID CORP OF CHINA +2
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- Description
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- Application Information
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Problems solved by technology
Although it is possible to achieve normal water intake by the water pump, there are certain limitations: before the water pump is started, the vacuum pump needs to be started manually; after the water pump is started, the vacuum pump must be manually turned off
If the water pump starts and stops frequently, the operation is inconvenient, the efficiency is low, the service life of the vacuum pump is affected, and it cannot meet the needs of the continuous development of modern projects.
Therefore, the existing technical solutions not only have the problems of inconvenient operation and low efficiency, but also affect the service life of the vacuum pump, and cannot meet the needs of the continuous development of modern engineering
Method used
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Embodiment
[0011] Embodiment: vacuum drainage device, constitutes as figure 1 , 2 As shown, the water pump 1 is included, and the water pump 1 is provided with a water inlet pipe 2; the position on the water inlet pipe 2 close to the water pump 1 is connected with a vacuum drainage branch pipe 3, and the end of the vacuum drainage branch pipe 3 is provided with an air-water separation valve 4, and the vacuum drainage branch pipe 3 The end is also connected with a vacuum tank 5 through a conduit; the vacuum tank 5 is provided with an electric contact pressure gauge 6, and the electric contact pressure gauge 6 is connected to a controller, and the controller is connected with two vacuum pumps 8 through a relay; The exhaust pipe is connected with the vacuum pump 8; the two vacuum pumps 8 are all connected with a water tank 10 through a pipeline 9.
[0012] The lower end of the vacuum tank 5 is provided with a vent pipe 11, and a ball valve 12 is provided on the vent pipe 11. The controlle...
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The invention discloses a vacuum drainage device which comprises a water pump (1), wherein a water inlet pipe (2) is arranged on the water pump (1); a vacuum drainage branch pipe (3) is connected to a position close to the water pump (1) on the water inlet pipe (2); a gas-water separating valve (4) is arranged at the tail end of the vacuum drainage branch pipe (3); a vacuum tank (5) is also connected to the tail end of the vacuum drainage branch pipe (3) through a guide pipe; an electric connecting pressure gauge (6) is arranged on the vacuum tank (5); a controller is connected to the electric connecting pressure gauge (6); two vacuum pumps (8) are connected to the controller through a relay; the vacuum tank (5) is connected with the vacuum pumps (8) through exhaust tubes; a water tank (10) is connected to the two vacuum pumps (8) through a pipeline (9). According to the vacuum drainage device disclosed by the invention, due to the arrangement of the vacuum tank, the electric connecting pressure gauge and a distribution control box, a certain negative pressure can be continuously kept in the vacuum tank, so that water always fills the inside of the pipeline, and the water pump can be started at any time.
Description
technical field [0001] The invention relates to a vacuum drainage device, in particular to a vacuum drainage device for a pumping station. Background technique [0002] The centrifugal pump absorbs water by forming a vacuum at the impeller inlet, so before starting, it must be filled with water in the pump and the suction pipe, or pumped with a vacuum pump to discharge the air to form a vacuum. In the existing pump station, when the installation elevation of the water pump is higher than the water intake level, the vacuum pump is generally used directly for water diversion. Although it is possible to achieve normal water intake by the water pump, there are certain limitations: before the water pump is started, the vacuum pump needs to be manually started; after the water pump is started, the vacuum pump must be manually turned off. If the water pump starts and stops frequently, the operation is inconvenient, the efficiency is low, the service life of the vacuum pump is affe...
Claims
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IPC IPC(8): F04D9/04
Inventor 姜红伟陈善贵李立秋杨建州
Owner STATE GRID CORP OF CHINA