Check valve sealing component, check valve, air conditioner and heat pump water heater

Abstract

The invention discloses a check valve sealing component. The check valve sealing component comprises a sealing component body made of elastic material, wherein the sealing component body adopts a cylinder; a first through hole is formed along the central axis of the sealing component body; a first annular bulge and a second annular bulge which are raised outwards from the peripheral wall of the sealing component body and extend in the circumferential direction of the peripheral wall are formed in the peripheral wall of the sealing component body; the first annular bulge and the second annular bulge are respectively arranged on the peripheral wall in positions close to two end surfaces of the sealing component body. The invention also discloses a check valve provided with the check valve sealing component and an air conditioner or a heat pump water heater assembled with the check valve with the check valve sealing component. The check valve sealing component is not easy to suffer alternant effect of hot and cold fluid, and deformation failure is not easy to occur, so that the check valve, the air conditioner and the heat pump water heater provided by the invention have good sealing performance, and the operation stability of the check valve, the air conditioner and the heat pump water heater is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a shut-off valve seal, a shut-off valve using the shut-off valve seal, an air conditioner and a heat pump water heater equipped with the shut-off valve. Background technique [0002] An O-shaped sealing ring is used in the existing stop valve, and when the stop valve is in an open state, the valve core and the movement channel of the valve core are sealed by the O-shaped sealing ring. When the air conditioner switches between working and non-working states and other conditions, the temperature difference in the environment where the globe valve is located changes greatly, and the O-ring is easily deformed and fails under the alternating action of cold and hot fluids for many times, resulting in a decrease in the sealing performance of the globe valve , resulting in adverse situations of fluid leakage. In addition, when the stop valve is in the closed state, the sealing ...

AI Technical Summary

Problems solved by technology

When the air conditioner switches between working and non-working states and other conditions, the temperature difference in the environment where the globe valve is located changes greatly, and the O-ring is easily deformed and fails under the alternating action of cold and hot fluids for many times, resulting in a decrease in the sealing performance of the globe valve , resulting in adverse situations of fluid leakage

In addition, when the stop valve is in the closed state, the sealing is realized by the hard sealing method in which the conical surface of the valve core and the conical surface of the valve body are pressed against each other. However, due to the limitation of manufacturing accuracy, micro Holes, small gaps and other defects, resulting in a gap between the cone surface of the valve core and the cone surface of the valve body, resulting in a decrease in sealing performance

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