Empty-pumping-preventing protective valve of mine pneumatic submerged pump
A submersible pump and protection valve technology, applied in the field of new protection valves
Active Publication Date: 2014-09-03
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0004] The present invention is an air-operated submersible pump anti-cavitation protection valve for mines, the purpose of which is to drive the valve stem to change the valve position of the valve body through the outlet pressure of the drainage, and to control the on-off of the air circuit , to realize the anti-cavitation protection control of the mine pneumatic submersible pump to solve the problems of low efficiency and poor safety in the existing technology, thereby providing an anti-cavitation protection valve that can realize the automatic stop control of the mine pneumatic submersible pump after pumping out the water
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[0013] specific implementation plan
[0014] combined with figure 1 And attached figure 2 , the specific implementation of the air-operated submersible pump anti-cavitation protection valve for mines of the present invention will be further described in detail.
[0015] combined with figure 1 Describe the working principle of the anti-cavitation protection valve of the mine pneumatic submersible pump. The upper part of the upper valve cover 1 is a cavity structure, and the middle is the water inlet 10. The cavity is reinforced with ribs along the direction of the X-shaped groove at the lower part of the upper valve cover 1. The lower part of the upper valve cover 1 There are circular grooves in the center and X-shaped grooves distributed around the circular grooves. The lower periphery of the upper valve cover 1 has an upper valve cover flange 14 and an annular upper valve cover protrusion 15. The upper valve cover flange 14, The upper valve cover protrusion 15 closely ...
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The invention discloses an empty-pumping-preventing protective valve of a mine pneumatic submerged pump and belongs to the technical field of valves. A round groove and an X-type groove are formed in the lower portion of an upper valve cover, and the upper portion of a rubber diaphragm and the grooves in the upper valve cover are matched to form a closed water chamber, and the lower portion of the rubber diaphragm makes contact with a round cover of a valve rod. A valve element is located between a lower valve cover and a valve seat, and a spring is arranged between the lower valve cover and the round cover of the valve rod. A valve seat baffle and a valve seat round hole are formed in the middle of a valve seat airflow channel. The pressure of a drainage outlet of the pump is detected in real time, water flows compress the spring to drive the valve rod to move in the vertical direction, and the air channel is on or off through unplugging or plugging the valve seat round hole. The valve is provided as an element for achieving empty-pumping-prevention protective control over the mine pneumatic submerged pump, is suitable for the mine pneumatic submerged pump on all kinds of important application occasions and has the advantages of being good in sealing performance, small in size, high in reliability, high in safety and the like.
Description
technical field [0001] The invention relates to a mine-used pneumatic submersible pump anti-cavitation protection valve, which belongs to the technical field of valves, and in particular relates to a new type of protection valve which controls the on-off of an air circuit by monitoring the pressure state of the pump drainage outlet. It is suitable for various important applications of mine pneumatic submersible pumps, and has the advantages of good sealing performance, small size, high reliability and strong safety. Background technique [0002] Pneumatic submersible pumps for mines are widely used as the main equipment for removing accumulated water in coal mines. At present, the underground drainage of coal mines mainly relies on manual inspection and manual operation. The underground tunnels of coal mines are long and there are many water accumulation points, requiring operators to go back and forth in the tunnels Inspect and operate the mine-used pneumatic submersible pu...
Claims
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IPC IPC(8): F16K7/17F04D15/00
CPCF04D15/0005F16K1/00F16K17/00F16K31/1262
Inventor 靳宝全张红娟梁丽萍满兵兵高妍王东乔铁柱
Owner TAIYUAN UNIV OF TECH