Liquid throttling pressure-stabilizing device

Abstract

The invention provides a throttling pressure-stabilizing device. The throttling pressure-stabilizing device comprises a valve core, a shell, a stop nut, a spring, an adjusting nut and a limit bolt. The throttling pressure-stabilizing device achieves the purposes of adjusting the pressure stability of a liquid outlet through the mutual cooperation between a square hole in the valve core and a waist-shaped hole in the shell and realizing the automatic adjustment of the pressure, has simple structure and high reliability; the cooperation of two throttling orifices is realized by adopting an annular pin on the valve core and an annular groove on the shell; and the stop nut and the stop bolt are used to ensure that the valve core is fixed in two directions, the manual adjustment in the pressureadjustment range is achieved, and the dual guarantee of automatic operation and manual operation is achieved. In addition, the structure solves the problem of valve failure caused by water hammer andimproves the system safety. Therefore, the throttling pressure-stabilizing device realizes the double guarantee of automatic adjustment and manual adjustment of throttling and pressure stabilizationof liquid, and has the advantages of small volume, and simple and reliable structure.

Description

technical field [0001] The invention relates to the field of valves, in particular to a liquid throttling and pressure stabilizing device. Background technique [0002] The two-component unified constant pressure extrusion propulsion system will have two working conditions: the attitude control engine and the orbit control engine work at the same time, and only the orbit control engine works. By designing a throttling and voltage stabilizing device, the impact of upstream pressure fluctuations on the downstream can be eliminated, so that the downstream engine can always work at the rated chamber pressure. [0003] Traditional liquid pressure reducing valves have the following three problems: [0004] 1. Complex structure and low reliability; [0005] 2. The water hammer phenomenon causes the elastic element to fail; [0006] 3. Large volume and heavy weight; [0007] 4. There is a situation of shutting down and no flow, which puts the system at high risk. Contents of t...

AI Technical Summary

Problems solved by technology

[0004] 1. Complex structure and low reliability;

[0005] 2. The water hammer phenomenon causes the elastic element to fail;

[0006] 3. Large volume and heavy weight;

[0007] 4. There is a situation of shutting down and no flow, which puts the system at high risk

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