Gas-liquid separative falling film type evaporator

Abstract

The invention discloses a gas-liquid separative falling film type evaporator which comprises a distributor and the distributor comprises a baffle, a pressure case and a gravity case which is provided with the pressure case; first through holes are uniformly arranged at the bottom of the gravity case and a plurality of clapboards are arranged at the bottom of the gravity case along the transverse direction; gaps are formed on the periphery of the pressure case and the periphery of the gravity case; second through holes are uniformly arranged on the top of the pressure case; the baffle is arranged above the pressure case, the two lateral sides of the baffle are fixedly arranged on the gravity case, a pore plate which is provided with a cover plate is arranged at the edge of the baffle and gaps are formed between the pore plate and the cover plate to form an air outlet groove; and an inlet pipe which is communicated with the pressure case is arranged on the baffle. The gas-liquid separative falling film type evaporator distributes refrigerant working medium through the combination of pressure potential energy and gravity potential energy, and accordingly has the advantages of being uniform in liquid separation, high in reliability, avoiding the splash and leakage of refrigerant working medium, being low in pressure loss, fully exerting the performance superiority, enabling the refrigerant working medium and a heat exchange pipe group to be fully contacted and greatly improving the evaporating efficiency.

Description

technical field [0001] The invention relates to an evaporator, in particular to a gas-liquid separation falling film evaporator. Background technique [0002] During the working process of the gas-liquid separation falling film evaporator, the high-temperature condensed liquid transported from the condenser is throttled and expanded by the throttling device, and then becomes a mixed fluid of low-temperature liquid and low-temperature gas, and then the mixed fluid enters the falling-film evaporator. The distribution device in the evaporator drips onto the heat exchange tubes as needed, and transfers the cooling capacity to the user. After being evaporated, it enters the suction port of the compressor, and is compressed and discharged into the condenser. At present, in the above-mentioned process of the existing evaporator, the gas-liquid two phases are prone to interference, and there are often problems such as difficulty in gas-liquid separation and relatively large obstruct...

AI Technical Summary

Problems solved by technology

At present, in the above-mentioned process of the existing evaporator, the gas-liquid two phases are prone to interference, and there are often problems such as difficulty in gas-liquid separation and relatively large obstructions in the gas passage; The foundation of the operation, and the distribution uniformity of the refrigerant working fluid in the falling film evaporator is not ideal enough to meet the requirements

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