Spray condensing device for normal-pressure heat pump evaporator

Abstract

The invention discloses a spray condensing device for a normal-pressure heat pump evaporator. The spray condensing device comprises a spraying water pump, the water inlet end of the spraying water pump is connected with a water inlet pipe, one end of the water inlet pipe is connected with a condensing tower, the water outlet end of the spraying water pump is connected with a water outlet pipe, oneend of the water outlet pipe is connected with a water inlet flange, the water inlet flange is connected with a heat exchanger, the top end of the heat exchanger is connected with a condensate pipe,the condensate pipe is divided into two sections which are connected through a connecting flange, the condensate pipe is connected into a condensing tower pipe, and the bottom end of the condensate pipe in the condensing tower pipe is connected with a plurality of nozzles. Compared with the prior art, the spray condensing device for the normal-pressure heat pump evaporator has the beneficial effects that the structure is scientific and reasonable, the use is safe and convenient, the condensation effect is stable, as the condensation heat exchange process occurs in a packing area in the spray and condensation tower, volume heat exchange is achieved, the heat exchange efficiency cannot be reduced due to surface pollution of the heat exchange pipe, the heat exchange efficiency is high, the manufacturing cost is lower, and the device is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of heat pump evaporators, in particular to a spray condensing device for an atmospheric pressure heat pump evaporator. Background technique [0002] Heat pump evaporation refers to compressing the secondary steam evaporated by the evaporator with a compressor, increasing its pressure, making its saturation temperature exceed the boiling point of the solution, and then sending it back to the heating chamber of the evaporator as heating steam. This method is called heat pump evaporation. , the use of heat pump evaporation only needs to supply heating steam during the start-up stage of the evaporator. When the operation reaches a stable level, no heating steam is needed, and only the work required to increase the pressure of the secondary steam is provided, thus saving a lot of raw steam; [0003] The condensing device of the existing atmospheric pressure heat pump evaporator uses water vapor to exchange heat t...

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Problems solved by technology

[0004] The heat transfer efficiency of the air-water partition wall is extremely low. In order to completely cool the evaporated gas and make it infinitely close to the temperature of the cooling water, a very large heat transfer area is required. In practical applications, in order to reduce the cost, it is often chosen to sacrifice A little heat transfer efficiency;

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