Series redundant type pressure regulating device
A pressure-regulating and redundant technology, applied in valve devices, safety valves, functional valve types, etc., to achieve the effect of improving stability and reliability, improving reliability and safety, and improving sealing reliability
Pending Publication Date: 2017-05-31
SHANGHAI INST OF SPACE PROPULSION
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a series redundant pressure regulating device, which solves the contradiction between the realization of redundant performance and the ability of components to withstand high pressure, realizes the redundant functions of pressure performance and sealing performance, and overcomes the single point Failure problem, improve the reliability and safety of the system, improve the stability and reliability of the pressure reducing valve, output pressure accuracy is higher, more stable and reliable, improve the sealing reliability, suitable for long-term working systems
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[0016] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.
[0017] Such as figure 1 with figure 2 As shown, the present invention discloses a series redundant pressure regulating device, which includes a primary pressure reducing valve 100 and a secondary pressure reducing valve 101, wherein:
[0018] The first-stage pressure reducing valve 100 includes a valve body 1, a first valve core 2, a first-stage valve seat 4, a first adjustment spring 6, a second adjustment spring 7, a first-stage sensitive element 10, a first-stage swivel 12, and a first-stage support Disc 14, first filter 16, second filter 17, first seal 19, second seal 20, inlet nozzle 23, outlet nozzle 24, inlet and outlet nozzle 25, the first seal 19 is installed in On the first valve core 2, the first valve core 2, the primary valve seat 4, the first adjustment spring 6, the pri...
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The invention discloses a series redundant type pressure regulating device. The series redundant type pressure regulating device comprises a primary pressure reducing valve and the like, wherein a first sealing part is arranged on a first valve element; the first valve element, a primary valve seat, a first regulating spring, a primary rotary sleeve, a first filter, a second filter, an inlet tube nozzle, an outlet tube nozzle, and an inlet-outlet tube nozzle are arranged in the valve body, and are connected through threads or are fixed by welding; a second regulating spring is arranged in the primary rotary sleeve; and a primary sensitive element, a primary supporting plate and a second sealing part are arranged between the primary rotary sleeve and a valve body to achieve the effects of sensing outlet pressure and sealing. The series redundant type pressure regulating device solves the contradiction between realizing of redundant performances and high pressure bearing capacity of an element, realizes a redundant function of pressure performances and sealing performances, overcomes the single-point failure problem, improves reliability and safety of the system, improves stability and reliability of the pressure reducing valve, is higher in output pressure precision, is more stable and reliable, improves sealing reliability, and is suitable for a long-term working system.
Description
technical field [0001] The invention relates to a pressure regulating device, in particular to a series redundant pressure regulating device. Background technique [0002] The pressure regulator is a key component of the fluid control system. Its main function in the system is to decompress and stabilize the high-pressure working medium, and provide the system with the required pressure and flow of working medium. If the function of the pressure regulating device fails, the system will not work normally, and even lead to catastrophic consequences of system damage. With the development and application of technology, the requirements for the reliability and safety of pressure regulating devices are increasing day by day. Therefore, how to improve the adjustment reliability and sealing reliability of the pressure regulating device becomes extremely important. The conventional single-stage pressure regulating device has the problem of single-point failure, which cannot meet th...
Claims
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Login to View More IPC IPC(8): F16K17/04
CPCF16K17/04
Inventor 陈文曲陆冰王强陈健
Owner SHANGHAI INST OF SPACE PROPULSION