Floating ball valve based on novel floating ball structure and refrigeration system comprising floating ball valve

Abstract

The invention relates to a floating ball valve based on a novel floating ball structure and a refrigeration system comprising the floating ball valve. The floating ball valve based on the novel floating ball structure comprises a valve body, a connecting rod and a floating ball, wherein one end of the connecting rod is connected with a liquid outlet, the other end of the connecting rod is connected with the floating ball, and the floating ball is arranged in the valve body; and an inlet air hole and an exhaust hole are formed in a shell of the floating ball, an inlet one-way valve is arrangedon the air inlet hole, an outlet one-way valve is arranged on the exhaust hole, the inlet one-way valve is conducted from the outside of the floating ball shell to the inside, and the outlet one-way valve is conducted from the inner part of the floating ball shell to the outside. The floating ball valve has the beneficial effects that two opposite one-way valves are installed on the complete floating ball shell to achieve equal pressure in the ball shell and in the valve cavity, and the problem of differential pressure is solved; and the floating ball is used for realizing displacement of thefloating ball on the height through the gravity difference between the buoyancy of the liquid and the gravity of the ball shell, and the problem that the floating ball is unbalanced when a closing airbag in the floating ball changes under pressure is avoided.

Description

technical field [0001] The invention relates to a ball float valve based on a novel ball float structure and a refrigeration system comprising the ball float valve. Background technique [0002] Float valve is often used to control the flow and control the liquid level. Its structure includes a floating ball and a connecting rod. The floating ball must always float on the liquid surface. When the liquid level rises, the floating ball also rises. The rod also rises. The connecting rod is connected with the valve at the other end. When the floating ball rises to a certain position, the connecting rod supports the piston; when the liquid level drops, the floating ball also falls, and the connecting rod drives the piston to close. The float valve can adjust the flow rate and control the liquid level by the position of the float on the liquid level. The floating ball is an important component of the floating ball valve. The existing floating balls are spherical and hemispherica...

AI Technical Summary

Problems solved by technology

Although this method solves the problem of pressure difference, it is difficult to realize the function of gas-liquid separation, especially in the refrigeration system, because the saturated refrigerant will produce a phase change when the pressure and temperature fluctuate slightly, which will make the function of this type of float valve unbalanced.

[0003] After searching by the applicant, it was found that there is no floating ball structure in the existing literature that can not only solve the problem of pressure difference, but also avoid the technical problem that the closed air bag makes the floating ball unbalanced when the pressure changes.

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