Siphon air inlet/outlet valve
An exhaust valve, valve body technology, applied in valve details, valve device, valve operation/release device, etc., to achieve good practicability, ensure sealing, and prevent water from backflowing.
Active Publication Date: 2013-12-25
WUHAN DAYU VALVE
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Problems solved by technology
However, the existing air valves are difficult to meet the above three requirements at the same time.
Method used
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[0013] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0014] Such as figure 1 The siphon intake and exhaust valve shown includes a valve body 1, which is provided with a floating ball opening and closing device. The top of the valve body 1 is fixed with a valve cover 3, and the top of the valve cover 3 is fixed with a gland 4. The top of the floating ball 2 of the ball opening and closing device is connected with a connecting rod 8, and the top of the connecting rod 8 is connected with a suction plate 5, and the gland 4 is provided with a magnet 6 corresponding to the suction plate 5. The floating ball opening and closing device includes a floating ball 2 and a valve seat 10. The floating ball 2 is supported on the valve seat 10. When the valve is exhausted, the floating ball 2 rises, the magnet 6 and the suction plate 5 are attracted to each other, and the floating ball 2 blocks the valve. The co...
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The invention discloses a siphon air inlet / outlet valve. The siphon air inlet / outlet valve comprises a valve body, wherein the valve body is internally provided with a floating ball opening / closing device, the top part of the valve body is fixedly provided with a valve cover in a matching way, the top part of the valve cover is fixedly provided with a press cover, the top part of a floating ball of the floating ball opening / closing device is connected with a connecting rod, the top part of the connecting rod is connected with a sucking plate, and the press cover is provided with a magnet corresponding to the sucking plate. Through the structure of arranging the electric magnet on the press cover and the sucking plate on the floating ball, the sealing performance of the siphon air inlet / outlet valve under a negative pressure state is ensured while the sucking plate is tightly connected with the electric magnet after the siphon air inlet / outlet valve is utilized for exhausting, meanwhile, the electric magnet and the sucking plate can be disconnected at the same time when a water pump stops as the same switch is shared by the electric magnet and the water pump, the negative pressure state of the siphon air inlet / outlet valve can be instantly relieved, and water backflow can be prevented. The siphon air inlet / outlet valve disclosed by the invention is simple in structure and good in practicability.
Description
technical field [0001] The invention relates to the technical field of valves, in particular to a siphon intake and exhaust valve. technical background [0002] The siphon inlet and exhaust valves are used in siphon water supply systems. In the water pumping or drainage system across the embankment, since the pipeline needs to climb over the river embankment, if the water is lifted or drained according to the maximum boost pressure of the pipeline, the head of the pumping station required is relatively large, so Designers often design siphon pipelines, which can save part of the water head. According to the design requirements of the Municipal Design Institute, generally, a negative pressure siphon pipeline with a water head of no more than 7 meters is designed at the embankment, thereby saving 7 meters of water head for the pump station. Therefore, the siphon water lifting or drainage pipeline is a kind of energy-saving pipeline, which is vigorously promoted by the municipa...
Claims
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IPC IPC(8): F16K31/20F16K31/06
Inventor 李习洪何锐
Owner WUHAN DAYU VALVE