Refrigerant distribution device having liquid temporary storage function

Abstract

The invention provides a refrigerant distribution device having a liquid temporary storage function. The refrigerant distribution device comprises an inlet pipe communicating with an expansion valve in a refrigerant circulation loop; the inlet pipe communicates with an inlet of a steam-liquid separation unit; an outlet of the steam-liquid separation unit communicates with a liquid inlet of a refrigerant distributor; the refrigerant distributor comprises a second housing; a first arc-shaped plate and a second arc-shaped plate are arranged in the second housing in a spaced manner; the first arc-shaped plate is located on one side, close to the liquid inlet, in the second housing; a first through hole is formed in the position, corresponding to the liquid inlet of the second housing, of the first arc-shaped plate; a flow guide cone is arranged at the place, corresponding to the first through hole, of the second arc-shaped plate; the size of the flow guide cone adapts to that of the firstthrough hole; and a plurality of liquid outlet pipes are arranged on the second arc-shaped plate. According to the refrigerant distribution device having the liquid temporary storage function, since the first arc-shaped plate and the second arc-shaped plate are arc-shaped, the refrigerant distribution device has higher liquid temporary storage function than an existing refrigerant distribution device adopting a flat plate.

Description

technical field [0001] The invention belongs to the technical field of refrigeration and air conditioning, and in particular relates to a refrigerant distribution device with a liquid buffer function. Background technique [0002] In traditional air-conditioning products, the refrigerant throttling and depressurized by the expansion valve is a vapor-liquid two-phase fluid. Due to the difference in density between gas and liquid, it is easy to cause uneven liquid separation in the distributor, especially For distributors with more branches, this phenomenon is more obvious, which seriously reduces the heat exchange efficiency of the evaporator. In the follow-up development, a throttling ring was installed at the inlet of the distributor to improve the phenomenon of uneven liquid separation, but the refrigerant entering the evaporator is still a vapor-liquid two-phase flow, and after a second throttling, the evaporation The heat transfer efficiency of the device has not improv...

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Problems solved by technology

[0002] In traditional air-conditioning products, the refrigerant that is throttled and depressurized by the expansion valve is a vapor-liquid two-phase fluid. Due to the difference in density between gas and liquid, it is easy to cause uneven liquid separation in the distributor, especially For distributors with more branches, this phenomenon is more obvious, which seriously reduces the heat exchange efficiency of the evaporator

In the follow-up development, a throttling ring was installed at the inlet of the distributor to improve the phenomenon of uneven liquid separation, but the refrigerant entering the evaporator is still a vapor-liquid two-phase flow, and after a second throttling, the evaporation The heat transfer efficiency of the device did not improve

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