Gas-Liquid separating evaporator

Abstract

A gas-liquid separation evaporator relates to heat transfer technology field, especially relates to evaporator technology field. The evaporator is characterized by including a gas-liquid separator connected to an air input pipe and an evaporator heat exchange section connected to an air output pipe. The gas-liquid separator is connected with the evaporator heat exchange section by a liquid separation pipe. The top of the gas-liquid separator is connected with a section of steam bypass pipe which is connected to the air output pipe at another end. A throttle device is mounted on the steam bypass pipe. The gas-liquid separator can be mounted with a liquid level sensor or liquid dryness measure device, the control signal output end of the sensor or measure device is connected to the control signal input end of the throttle device; a pressure sensor can be mounted in the front section at the connection place between the air output pipe and the steam bypass pipe, the control signal output end of the pressure sensor is connected to the control signal input end of the throttle device. The present invention can export part or all refrigerant gas through bypass, improves the heat exchange efficiency and reduces the flow lost of the refrigerant.

Description

Technical field: [0001] A gas-liquid separation evaporator relates to the technical field of heat transfer, in particular to the technical field of evaporators. Background technique: [0002] The low-quality gas-liquid two-phase refrigerant enters the evaporator for heat exchange, and evaporates into saturated vapor after absorbing heat. As the refrigerant continuously absorbs heat and evaporates when it flows along the channel in the evaporator, the gas phase share increases, and the contribution of the gas phase share to heat transfer is much smaller than that of the liquid phase share, but due to its rapidly increasing volume, the flow rate of the refrigerant increases, resulting in distance loss increases. At present, in the process of using the existing evaporator, it is generally used to increase the number of branches to reduce the pressure loss on the side of the refrigerant, but because the increase in the number of branches will cause uneven distribution of the re...

AI Technical Summary

Problems solved by technology

As the refrigerant continuously absorbs heat and evaporates when it flows along the channel in the evaporator, the gas phase share increases, and the contribution of the gas phase share to heat transfer is much smaller than that of the liquid phase share, but due to its rapidly increasing volume, the flow rate of the refrigerant increases, resulting in Increased range loss

At present, in the process of using the existing evaporator, it is generally used to increase the number of branches to reduce the pressure loss on the side of the refrigerant, but because the increase in the number of branches will cause uneven distribution of the refrigerant flow, resulting in insufficient utilization of the heat exchange area, At the same time, the gas phase share still needs to occupy the corresponding heat transfer area, reducing the heat transfer efficiency

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