A Solenoid Valve for Accurately Controlling the Flow of Hydrogen Peroxide
A precise control, hydrogen peroxide technology, applied in the direction of valve lift, valve details, valve device, etc., can solve the problems of increasing rocket start-up time, increasing the area occupied by the internal structure of the rocket, unfavorable rocket design optimization, etc., to achieve compact structure, saving The effect of convenient space and flow control
Active Publication Date: 2017-08-29
BEIHANG UNIV
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Problems solved by technology
[0006] However, for the ordinary adjustable cavitation venturi tube connection problem, its outlet will be connected to a section of pipe, and the pipe will be connected to the solenoid valve, which will greatly increase the occupied area of the rocket’s internal structure, which is not conducive to the design optimization of the rocket’s interior
At the same time, this also means that the launch time of the rocket is increased
Method used
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[0031] specific implementation plan
[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] The electromagnetic valve for accurately controlling the flow of hydrogen peroxide in the present invention includes a valve body 1, a main valve core sleeve 2, a venturi tube 3, an electromagnetic valve core 4 and a pilot valve 5, such as figure 1 shown.
[0034] The valve body 1 is a cylindrical structure with a horizontal axis. The left end and the right end of the valve body 1 are respectively the inlet end and the outlet end. A valve body back cavity 101 is designed. A main valve core sleeve 2 is coaxially arranged in the inner cavity of the valve body. The front end and the rear end of the main valve core sleeve 2 are the inlet port and the outlet port respectively. The main valve core sleeve 2 cooperates and overlaps the boss designed in the circumferential direction of the inlet end with the boss designe...
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The invention discloses a hydrogen peroxide flow precise control solenoid valve, and particularly relates to a pilot solenoid valve which is combined with a venturi and is applicable to high-concentration hydrogen peroxide. The hydrogen peroxide flow precise control solenoid valve comprises a valve body, a solenoid valve element, the venturi and a pilot valve, wherein the solenoid valve element is arranged in the valve body, and blocks the outlet of the valve body under spring elastic control; a propellant enters a valve cavity through the venturi, and then enters a large-diameter liquid inlet passage; the pilot valve controls an armature to absorb the valve element through a solenoid coil, so that a pilot valve element is separated from the liquid inlet end of a small-diameter liquid outlet passage; and the propellant then passes through a liquid cavity on the pilot valve body, and then flows to the valve body outlet through the liquid outlet passage. Therefore, pressure at the valve body outlet is increased; the solenoid valve element can be separated from the valve body outlet through a pressure difference function; and then the propellant can flow to the valve body outlet through the inside of the solenoid valve body. The hydrogen peroxide flow precise control solenoid valve has the advantages that the structure is compact; space is saved; precision is high; response is rapid; the hydrogen peroxide flow precise control solenoid valve is secondarily compatible with hydrogen peroxide; flow control is convenient.
Description
technical field [0001] The invention belongs to the field of propellant flow regulation and control of variable-thrust rocket engines, and relates to the flow regulation and control of high-concentration hydrogen peroxide, in particular to a pilot solenoid valve suitable for high-concentration hydrogen peroxide. Background technique [0002] Solenoid valve is the most widely used and most important actuator and control element in the pipeline fluid conveying system, and it is an indispensable equipment in the control system. [0003] Solenoid valves have 5 major functions, such as connecting or cutting off fluid passages, regulating and throttling, preventing backflow, regulating pressure or releasing excess pressure, and are widely used in industrial production. Solenoid valves are used to control the flow of various types of fluids such as air, water, various corrosive chemical media, mud, liquid metal and radioactive substances. [0004] The control part of the solenoid ...
Claims
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IPC IPC(8): F02K9/58F16K1/00F16K31/36F16K31/06
CPCF02K9/58F16K1/00F16K31/0655F16K31/36
Inventor 田辉曹彬彬张源俊
Owner BEIHANG UNIV