Separating and liquid equalizing device for heat pump water heater

Abstract

The invention discloses a separating and liquid equalizing device for a heat pump water heater. The separating and liquid equalizing device comprises a cylinder and an air outlet in the upper part of the cylinder, wherein the top of the cylinder is provided with a liquid inlet pipe; a partition plate is embedded below the liquid inlet pipe; small holes are uniformly distributed in the partition plate; a liquid equalizer is arranged in the center of the bottom of the cylinder and consists of a flow guide perforated sleeve and a liquid equalizing sleeve which is sleeved outside the flow guide perforated sleeve; the bottom of the flow guide perforated sleeve is provided with a circular hole; a convex cone is arranged in the center of the upper half part of the liquid equalizing sleeve; throttling holes are uniformly distributed in the outer edge of the cone; the lower half part of the liquid equalizing sleeve is provided with a split capillary tube; when the flow guide perforated sleeve is in socket joint with the liquid equalizing sleeve, the circular hole in the bottom of the flow guide perforated sleeve is sleeved on the cone of the liquid equalizing sleeve. According to the separating and liquid equalizing device, the uniformity of a refrigerant which gets out from the separating and liquid equalizing device can be effectively guaranteed by using the conversion, spray and throttling technologies, so that an evaporator of the heat pump water heater evaporates fully and the refrigeration capacity is improved.

Description

technical field [0001] The invention relates to the field of heat pump water heaters, in particular to a separation homogenizer used in heat pump water heaters. Background technique [0002] Heat pump water heaters need to produce hot water throughout the year, so how to make the evaporator fully obtain external heat is particularly important. The evaporation effect has a lot to do with the amount of refrigerant allocated to the evaporator. The liquid distributor component is responsible for the even distribution of the refrigerant in the evaporator. If the distribution of the liquid distributor component is not uniform, there will be too much refrigerant in some branches, and the evaporator will be frosted. As a result, the evaporation will not be complete, resulting in The liquid flows out of the evaporator; some refrigerants are too small to make full use of the heat transfer area of ​​the evaporator. The overall performance is that the cooling capacity decreases, which ...

AI Technical Summary

Problems solved by technology

[0004] After the refrigerant passes through the expansion valve, the pressure drops, and the refrigerant will more or less evaporate part of it and become a gas. Then, under the influence of gravity and flash gas, the mixture of these liquids and gases will flow to a place with less resistance. , so ordinary liquid separators cannot evenly distribute the refrigerant gas-liquid mixture, so special structures are required to process the refrigerant before distribution

At the same time, the uneven evaporation load also affects the liquid separation of the liquid separator, which is mainly due to the uneven air flow through the heat exchanger or the poor processing consistency of the evaporator

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