Quantitative feed electric control pressure reductor, characteristic test system for pressure reductor and automatic test method

A technology of quantitative supply and pressure reducer, which is applied in the testing of machines/engines, machines/structural components, instruments, etc., can solve problems such as low efficiency, achieve accurate test data, improve work efficiency, and save manpower and time.

Inactive Publication Date: 2010-07-07
北京旧宫旭德天普机械厂 +1
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AI Technical Summary

Problems solved by technology

Later, with the continuous advancement of computer and automation technology, Figure 4 The pressure gauge is replaced by a pressure sensor, and the computer program is used to automatically record various data, and the efficiency has been improved, but the adjustment of the throttle valve still needs manual or semi-manual operation, and the efficiency is relatively low

Method used

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  • Quantitative feed electric control pressure reductor, characteristic test system for pressure reductor and automatic test method
  • Quantitative feed electric control pressure reductor, characteristic test system for pressure reductor and automatic test method
  • Quantitative feed electric control pressure reductor, characteristic test system for pressure reductor and automatic test method

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Embodiment Construction

[0032] The automatic test system for the characteristics of the pressure reducer is composed of three parts: the gas supply system, the data acquisition and control circuit, and the control program.

[0033] The principle of gas supply system is as follows: Figure 6 As shown, there is high-pressure air in the air storage tank 11, the high-pressure hand valve 16 is the main switch of the air source, the quantitative supply type electronically controlled pressure reducer 21 is arranged upstream of the pressure reducer 13 under test, and the pressure sensors 12 and 14 are used respectively To measure the inlet pressure P of the pressure reducer under test 1 and outlet pressure P 2 , the temperature sensor 22 is used to measure the air temperature, the flow meter 23 is used to measure the air flow, the throttling plate 24 is used to limit the air flow, and the solenoid valve 15 is a system switch. The inlet pressure P of the pressure reducer 13 under test 1 That is, the outlet...

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Abstract

The invention relates to a quantitative feed electric control pressure reductor, a characteristic test system for the pressure reductor and an automatic test method. The quantitative feed electric control pressure reductor comprises a quantitative air charging device and a quantitative air discharging device, and the quantitative air charging device and the quantitative air discharging device respectively control the movement of a valve core with an air charging magnet coil and an air discharging magnet coil in an pulse mode to quantitatively charge or discharge air to a control cavity, thereby the outlet pressure of the quantitative feed electric control pressure reductor is regulated to a setting value; the quantitative feed electric control pressure reductor, a measured pressure reductor, a sensor device, a control valve, a data acquisition and control circuit and like are connected in series to form the characteristic test system for the pressure reductor, the outlet pressure of the quantitative feed electric control pressure reductor is used as the inlet pressure of the measured pressure reductor, the sensor and a collection card are used as a data acquisition device, the automatic performance of the characteristic test of the measured pressure reductor is realized by computer process control, and the test data is displayed and recorded in real time.

Description

technical field [0001] The invention relates to a ground test of a rocket engine propellant delivery system, which is mainly used for pressure characteristic tests and flow characteristic tests of components such as pressure reducers and valves in the delivery system. Background technique [0002] The pressure reducer is an important part of the propellant delivery system. Its function is to reduce the pressure of the imported high-pressure gas to a specified value and stabilize it within a certain pressure range. It is a part that works on the principle of throttling. Such as figure 1 As shown, high-pressure gas enters the high-pressure chamber 2 from the inlet 1, and under the action of the spring 10, the valve core 4 is tightly pressed against the valve seat 3, and the pressure reducer is in a closed state. When the downstream valve of the pressure reducer is closed, the control chamber 6 is filled with a pressure of P through the control gas inlet 5. c Pushed by the ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02G01M15/08F02K9/96
Inventor 魏德普孙冰张佳
Owner 北京旧宫旭德天普机械厂
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