F valve stationary superheat degree automatic testing device and testing method

Abstract

The invention discloses an F valve stationary superheat degree automatic testing device and a testing method. A front end of a vertical-type operation bench of the device is a working bench, and the middle position of the bench surface of the working bench is provided with four testing tools. The right sides of the testing tools are provided with a constant temperature groove controller, and the left side of the working bench is provided with a power switch. A display screen is disposed right above the working bench, and the lower side of the display screen is provided with four groups of qualified product indicating lamps and unqualified product indicating lamps. The left sides of the qualified product indicating lamps are provided with a bar code reader, and the lower sides of the qualified product indicating lamps are provided with four groups of gas inlet pipe interfaces and gas outlet pipe interfaces. The left side of the display screen is provided with a working pressure gauge, and the right side of the display screen is provided with a cylinder pressure gauge, and four groups of starting keys and sudden stop keys are disposed in a middle position of a key groove in the lower side of the working bench. The lower part of the left side of the vertical-type operation bench is provided with two total gas source interfaces, and the lower part of the right side of the vertical-type operation bench is provided with two total gas source outlets. The stationary superheat degree automatic testing and adjusting of the F valve can be realized, and the control over the testing process can be realized by taking the programmable logic controller as the core, and therefore the testing precision is high, and the clamping is convenient and safe.

Description

technical field [0001] The invention mainly relates to the setting of the static superheat degree and the detection of two important technological indexes of the superheat degree and the internal leakage value, and in particular relates to an automatic test device and a test method for the static superheat degree of an F valve. Background technique [0002] F-type thermal expansion valve, as an important throttling element, has been widely used in refrigeration systems and is one of the important components of automobile air conditioners. The main function is to adjust the change of the pressure drop from the condensing pressure to the evaporating pressure, and at the same time control the flow of the refrigerant. The quality of the valve performance directly determines the operating performance of the entire system, which is very important to ensure the energy-saving effect of air conditioning and refrigeration. Static superheat is an important performance index of F-type ...

AI Technical Summary

Problems solved by technology

Today, the traditional handicraft industry has been difficult to meet the testing requirements. Modernization, automation, environmental protection, and energy saving have become the development trend of the refrigeration industry to expand reproduction.

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