One-way refrigeration system throttle valve

Abstract

The invention discloses a one-way refrigeration system throttle valve. The one-way refrigeration system throttle valve is composed of a valve body shell, a limiting spring, a nozzle slide block and apressure release groove opening; the interior of the valve body shell is provided with a spring limiting structure and a nozzle limiting structure, and the pressure release groove opening is arrangedbetween an inner cavity of the valve body shell, the spring limiting structure and the nozzle limiting structure; under elastic action of the limiting spring, one end of the nozzle slide block abuts against the nozzle limiting structure, the nozzle slide block covers the pressure release groove opening, when one side of the nozzle slide block is impacted by external force to extrude the limiting spring, the limiting spring continues being compressed, and the pressure release groove opening is exposed; the nozzle slide block is provided with a nozzle, and the interior of the valve body shell isof a cavity structure; and the nozzle slide block is in a funnel shape. The one-way refrigeration system throttle valve adopts the nozzle structure, the expansion throttling purpose is achieved, meanwhile, spring tension is overcome through the pressure difference between the two ends of the nozzle slide block, moving of the nozzle slide block is achieved, a part of a refrigerant is throttled from the pressure release groove opening, high pressure of the high pressure side is released, and stable operation of the unit under the high pressure working condition is achieved.

Description

technical field [0001] The invention relates to the technical field of throttling components in refrigeration, air conditioning, and heat pump industries, in particular to a one-way refrigeration system throttle valve. Background technique [0002] The throttling components in the traditional refrigeration heat pump industry generally use electronic expansion valves, thermal expansion valves, and capillary tubes to achieve system throttling. The structure of the electronic expansion valve is complicated, the processing cost is high, the unit control cost increases, and the stability of the electronic equipment is poor and it is easy to lose control. The structure of the thermal expansion valve is also relatively complicated, the processing cost is high, the control accuracy is low, and the valve cannot be opened in time according to the pressure. However, the capillary structure is single and cannot be adjusted, which may easily lead to high-voltage failure of the system un...

AI Technical Summary

Problems solved by technology

The structure of the electronic expansion valve is complicated, the processing cost is high, the unit control cost increases, and the stability of the electronic equipment is poor and easy to lose control

The structure of the thermal expansion valve is also relatively complicated, the processing cost is high, the control accuracy is low, and the valve cannot be opened in time according to the pressure

However, the capillary structure is single and cannot be adjusted, which will easily lead to high-voltage failure of the system under high-load and high-pressure conditions.

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