Test system and method for flow characteristics and flow resistance of general intelligent pneumatic components

Abstract

The invention relates to a testing system and method for the flow characteristics and flow resistance of general intelligent pneumatic components, and relates to the field of pneumatic component testing. , temperature and pressure detection components, flow regulating valve group and terminal switching components, the test system also includes measurement and control modules, which are respectively connected with temperature regulators, pressure regulators, flow testing components, temperature and pressure detection components, flow regulating valve groups and terminal switching components Component communication connection. The use of measurement and control modules to fully control temperature, pressure and flow greatly improves work efficiency, thereby reducing labor costs and increasing overall revenue. The high-precision temperature, pressure and flow control scheme effectively eliminates the error effect of temperature on gas characteristics and sensor working stability, and greatly improves the accuracy of system testing.

Description

technical field [0001] The invention relates to the field of pneumatic component testing, in particular to a system and method for testing the flow characteristics and flow resistance of general intelligent pneumatic components. Background technique [0002] With the advancement of science and technology and the rapid development of industrial modernization, all kinds of equipment are developing in the direction of intelligence, integration and high compatibility. In the field of pneumatic component flow characteristic testing technology, the current pneumatic component flow characteristic testing system needs to manually continuously adjust the upstream pressure reducing valve to make the upstream pressure P 1 Constant, adjust the opening of the downstream speed control valve to change the downstream pressure P 2 , often requires multiple people to work together, with low efficiency and long test time, consumes a large amount of gas source, and causes waste of resources; t...

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Problems solved by technology

[0004] Moreover, the process of degassing the gas source is often accompanied by temperature changes. Generally, the gas source in the laboratory is high-pressure nitrogen or air. In the case of long-term high-flow work, there will be a significant cooling phenomenon. Significant temperature changes will not only affect the gas flow characteristics and can damage the sensor

Thus affecting test accuracy and even function

However, those skilled in the art often ignore the influence of this temperature change. The flow characteristics and flow resistance of pneumatic components or pneumatic components detected by traditional testing devices have low data accuracy and are difficult to apply in the aerospace field, which will lead to The aerodynamic component or aerodynamic assembly of aerospace equipment is not capable of precise control

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