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Flow regulating valve

A technology of flow regulating valve and casing, applied in the direction of valve device, sliding valve, separation method, etc., can solve the problems of carrying capacity influence, inability to guarantee, large center of mass offset, etc., to improve work efficiency and facilitate replacement and adjustment.

Pending Publication Date: 2022-05-13
SHENYANG AEROSPACE XINGUANG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon will cause a large center of mass offset during flight, thereby reducing the control force margin of the spacecraft attitude control system and increasing the consumption of attitude control propellant. It is impossible to guarantee the supply of pure liquid-phase propellant to the engine, and the propellant in other storage tanks will no longer be usable, which will greatly increase the unusable amount of propellant for the active force and have a great impact on the carrying capacity

Method used

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1. Regulating pipeline, such as Figure 10 shown.

[0030] During the pipeline liquid flow test, the back pressure (the pressure at the back end, usually used to describe the pressure opposite to the flow direction received by the fluid discharged from the system at the outlet or the secondary side) when the flow is changed and adjusted should meet the pressure above 1MPa (In order to avoid the formation of cavitation in the pipeline, affecting the test pressure parameters). The design of the invention can adapt to switching under three different flow rates to ensure that the back pressure is above 1MPa. A variety of flow adjustments can also be designed according to flow requirements. The spool part of this design is divided into three independent spools, which are opened sequentially according to different flows.

[0031] Connect the system pipelines to the system flow table, and connect the pipelines, hand valves, pressure gauges, flow meters, and flow r...

Embodiment 2

[0033] Utilizing the characteristics of the structure of the invention to regulate the flow rate, the output flow rate of the two storage tanks is guaranteed to be consistent. The storage tank is used as a liquid storage container for the liquid rocket. During use, the liquid in the liquid chamber is squeezed into the system pipeline by the gas squeezing the metal diaphragm. Due to the difference (thickness, design deviation) of the metal diaphragm of the storage tank, the two There is a difference in side overturning pressure, and long-term discharge is likely to cause differences in the remaining volumes of the two storage tanks, resulting in system deflection. By introducing the invention into the system pipeline, the flow can be adjusted by adjusting the opening of the valve cores on both sides. To carry out a simultaneous discharge test study in a tank, see Figure 11As shown, firstly, the upper and lower limit difference of the titanium alloy tank discharge under differ...

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Abstract

A first shell is in threaded connection with a second shell, a filter assembly is arranged in the first shell, the head of the first shell is connected with a ball head through a 60-degree filler neck, a threaded groove used for installing the filter assembly is formed in the neck of the first shell, the interior of the first shell is in a step shape, and the filter assembly is arranged in the threaded groove. The valve element is used for limiting and fixing the wheel disc supporting frame, the wheel disc supporting frame is provided with three hole sites with different diameters, the circumferential included angle of the three hole sites is 120 degrees, the three hole sites are conical surfaces, the three valve elements with different diameters are arranged to be conical surfaces and matched with the three hole sites to form sealing surfaces, the supporting spring is connected with the valve element seat, and the supporting spring is connected with the valve element seat. And the supporting baffle plate is pressed on the supporting spring. The problem of adapting to flow through repeated debugging in the test debugging process is solved, and flow control is achieved through continuous change of the sectional area. And the working efficiency and the stability of a product mounting process are improved, so that rapidness and precision are achieved.

Description

technical field [0001] The invention relates to the technical field of flow regulation of liquid rocket systems, in particular to a flow regulating valve. Background technique [0002] During the design process of the liquid rocket system, it is necessary to match the flow resistance of each system and the pipeline flow resistance. Due to the differences in the actual pipeline configuration, it is necessary to conduct a flow resistance test on the entire system pipeline to obtain the Flow resistance, based on which orifice plates can be added in the pipeline to provide the proper flow to the rocket motor. In the existing work, each part of the pipeline is connected from the inlet to the engine outlet according to the system design requirements. Due to the different engine operating conditions in the system, the flow rate is different. In order to obtain the accurate pipeline flow resistance, the same branch needs to be Do data collection under different traffic conditions. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/08F16K3/314F16K3/34B01D35/04
CPCF16K3/08F16K3/314F16K3/34B01D35/046
Inventor 徐微
Owner SHENYANG AEROSPACE XINGUANG GRP
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