Self-upright pressure-differential balance valve and its production

A self-operated differential pressure and balance valve technology, applied in balance valves, safety valves, valve devices, etc., can solve the problems of high relative failure rate, many components, complex structure, etc., and achieve the effect of easy installation and maintenance.

Inactive Publication Date: 2007-11-21
李士宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are many control elements, the structure is complex, and the volume and floor space of the whole set of equipment are large. Equipment manufacturing and maintenance costs are high.
Due to the large number of components in the pneumatic control system, the relative failure rate is also high

Method used

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  • Self-upright pressure-differential balance valve and its production
  • Self-upright pressure-differential balance valve and its production

Examples

Experimental program
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Embodiment Construction

[0016] Embodiments of the present invention and their effects will be further described below in conjunction with the accompanying drawings. Referring to the accompanying drawings 1 and 2, the self-operated differential pressure balancing valve includes a valve body 1 and valve seats 2 and 3 respectively located on both sides of the valve body. Diaphragms 4 and 5 are respectively installed between the two valve bodies and valve seats.

[0017] Valve body 1, valve seats 2, 3 and valve seats 4, 5 are assembled to form two end air chambers 9, 10 and a middle air chamber 11 respectively.

[0018] A movable block 6 is arranged in the middle air chamber 11 and is connected with the diaphragms 4 and 5 .

[0019] The two end air chambers 9, 10 are provided with valve cores 7, 8, which are respectively connected with the diaphragms 4, 5 and can move together with the diaphragms.

[0020] The valve seats 2, 3 are respectively provided with gas inlets 12, 13, gas outlets 14, 15 and gas...

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Abstract

The invention is a valve body installing, which specially relates to a self-supporting pressure-difference balanced valve that can balance pressure difference and its method. It includes a valve body 1 , valve bases 2 & 3 in the two sides , membranes 4 & 5 , head air compartment 9 & 10 and endo-mounted spools 7 & 8 , middle air compartment 11 and an endo-mounted active plate 6 , air inlets 12 & 13 and air outlets 14 & 15 set in 2 & 3 connected with air tube 16 , 17 & 18 . 4 & 5, 2 & 3 and 1 are made of 9 & 10, 11. 7 & 8 can move between on-off sites, which are connected with 4 & 5. 16 & 17 are connected with 9 & 10. 18 are connected with 11. Working pressure is lower than 1.0 MPa, the pressure of H2 and O2 are hold at 150 mm water-column, air purity is higher than 99.9%.

Description

Technical field [0001] The invention belongs to a valve body device, in particular to a self-operated differential pressure balancing valve and a method thereof for balancing and controlling gas differential pressure. Background technique [0002] In the water electrolysis hydrogen production industry, in order to ensure the purity of hydrogen and oxygen, the pressure difference between hydrogen and oxygen is generally required to be controlled within the range of 150mm water column. Therefore, hydrogen pressure transmitters, oxygen pressure transmitters and hydrogen-oxygen differential pressure transmitters are commonly used in the industry to cooperate with pneumatic diaphragm regulating valves and liquid level transmitters for joint control systems. That is, the electric-pneumatic-hydraulic unit combined instrument control system. The pneumatic diaphragm regulating valve, hydrogen and oxygen pressure transmitters and hydrogen and oxygen differential pressure transmitters...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/00
Inventor 李士宏
Owner 李士宏
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