High-pressure large-flow axial-flow type gas pressure regulator
A gas pressure regulator, axial flow technology, applied in the valve's device for absorbing fluid energy, functional valve type, lift valve and other directions, can solve the problems of poor flow stability, weak flow capacity, large structural pressure loss, etc. Achieve the effect of stable downstream pressure, reducing inlet pressure and reducing fluid pressure loss
Pending Publication Date: 2021-10-22
SHANGHAI FIORENTINI GAS EQUIP
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Problems solved by technology
[0003] In gas transmission and distribution systems, especially large urban gate stations and distribution stations, etc. require relatively high pressure and relatively large flow, but traditional pressure regulators are mainly cut-off types, with large structural pressure loss and low flow capacity. Weakness and poor flow stability determine that it cannot be applied to high-pressure and large-flow occasions
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[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] see Figure 1-Figure 3 , a high-pressure and large-flow axial-flow gas pressure regulator, including an inlet valve body 1, an outlet valve body 11, a sleeve valve core 2, an inlet pressure plate 6, an outlet pressure plate 8, a diaphragm 7, and a valve seat assembly; the inlet The respective pressure surfaces of the pressure plate 6 and the outlet pressure plate 8 sandwich the diaphragm 7, and their respective end faces are against the outside of the sleeve valve core 2; the diaphragm 7 separates the inlet valve body 1 and the outlet valve body 11 into an upstream cavity Chamber 19 and downstream chamber 22; the inlet valve body 1 communicates with the downstream chamber 22 through the first pressure introduction passage; the gas outlet 24 of the outlet valve body 11 communicates with the upstream chamber through the second pressure int...
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The invention relates to a high-pressure large-flow axial-flow type gas pressure regulator. The high-pressure large-flow axial-flow type gas pressure regulator comprises an inlet valve body, an outlet valve body, a sleeve valve element, an inlet pressing plate, an outlet pressing plate, a diaphragm and a valve seat assembly. The respective pressure surfaces of the inlet pressing plate and the outlet pressing plate clamp the diaphragm in the middle, and the respective end surfaces abut against the outer part of the sleeve valve core; the inlet valve body and the outlet valve body are divided into an upstream chamber and a downstream chamber by the diaphragm; the inlet valve body communicates with the downstream chamber through a first pressure guide channel; an air outlet of the outlet valve body communicates with the upstream chamber through a second pressure guide channel; a main spring is arranged between the inlet valve body and the inlet pressing plate; the valve seat assembly is fixedly installed on the rear portion of the outlet valve body and comprises a valve seat, a set radial gap is formed between the valve seat and the outer wall of the sleeve valve element, the pressure difference between the downstream cavity and the upstream cavity pushes the inlet pressing plate, the outlet pressing plate, the diaphragm and the sleeve valve element to move coaxially, then the axial relative position of the sleeve valve element and the valve seat is changed, the pressure of the air outlet is adjusted and the pressure of the air outlet is kept stable.
Description
technical field [0001] The invention relates to a high-pressure and large-flow axial-flow gas pressure regulator, belonging to the technical field of gas pressure regulators. Background technique [0002] The gas pressure regulator is the key equipment in the gas transmission and distribution system, which is suitable for occasions where the gas needs to be adjusted and stabilized. The main function of the pressure regulator is to automatically adjust the gas outlet pressure to stabilize it in a certain pressure range to meet the needs of customers. When the downstream flow increases, the spool moves away from the valve pad, increasing the opening of the valve port, and the flow increases; when the downstream flow decreases or reaches zero, the spool moves closer to the valve pad, reducing or closing the opening of the valve port, and the flow decreases or zero. During the entire pressure regulation process, the downstream pressure is stable in a certain pressure range. ...
Claims
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IPC IPC(8): F16K17/30F16K37/00F16K47/02F16K1/42F16K27/02
CPCF16K17/30F16K37/0016F16K47/02F16K1/42F16K27/02
Inventor 周士钧顾俊杰朱莉刘涛阮若冰朱元侃
Owner SHANGHAI FIORENTINI GAS EQUIP