Zonal mixed flow energy recovery system
An energy recovery and mixed flow technology, which is applied in the field of heat exchange systems, can solve the problems of insufficient utilization of condensation superheat, unfavorable flushing of dirt in the heat exchanger, and reduced working efficiency of the condenser, and achieves low exhaust pressure, Smooth flow and thermal load reduction effect
Inactive Publication Date: 2019-07-19
李永堂
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Problems solved by technology
Since the cross-sectional area of the exhaust main pipe of the refrigeration compressor is dozens or even hundreds of times the cross-sectional area of the heated water pipe, the water flow in the heat exchanger is very slow. On the other hand, it is not conducive to flushing the dirt in the heat exchanger
At the same time, the cooled refrigerant is partially liquefied, and the liquid refrigerant enters the condenser together with the gaseous refrigerant, resulting in a decrease in the working efficiency of the condenser.
Method used
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[0016] Below in conjunction with embodiment and accompanying drawing, further illustrate the present invention.
[0017] Such as figure 1 , the embodiment of the system of the present invention comprises compressor 1 and condenser 15, and the outlet end of condenser 15 is connected with high-pressure accumulator 32 through high-pressure liquid return pipe 16, and high-pressure accumulator 32 is connected with evaporator through throttling valve 31. The evaporator 30 is connected to the intake end of the compressor 1 through the low-pressure air return pipe 29 .
[0018] The embodiment of the system of the present invention also includes a main heat exchanger 7 and a secondary heat exchanger 11 . The shell of the main heat exchanger 7 has the shell side fluid outlet 5 of the main heat exchanger and the shell side fluid inlet 26 of the main heat exchanger, and the shell of the secondary heat exchanger 11 has the shell side fluid outlet 10 of the secondary heat exchanger and Th...
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The invention discloses a zonal mixed flow energy recovery system. The energy recovery system comprises a main heat exchanger and a secondary heat exchanger, and further comprises an inner circulatingwater tank. The inner circulating water inlet end of the inner circulating water tank is connected with a main heat exchanger shell-side fluid outlet through an inner circulating water pipe; and theinner circulating water outlet end of the inner circulating water tank is connected with a main heat exchanger shell-side fluid inlet through a pipeline with a circulating water pump. According to thedifferent temperatures of the main heat exchanger and the secondary heat exchanger, a method of mixed flow of water at different temperatures is adopted, so that the water velocity is greatly improved in the main heat exchanger and the secondary heat exchanger, and therefore the heat transfer efficiency of the system is greatly improved.
Description
technical field [0001] The invention relates to a heat exchange system, in particular to a heat exchange system based on a refrigeration system for cold storage. Background technique [0002] The condensation heat recovery system of the existing refrigeration system in a food processing plant is generally recovered by a single-stage heat exchanger. Some use multi-stage heat exchanger series system. Since the cross-sectional area of the exhaust main pipe of the refrigeration compressor is dozens or even hundreds of times the cross-sectional area of the heated water pipe, the water flow in the heat exchanger is very slow. On the other hand, it is not conducive to flushing the dirt in the heat exchanger. At the same time, the cooled refrigerant is partially liquefied, and the liquid refrigerant enters the condenser together with the gaseous refrigerant, resulting in a decrease in the working efficiency of the condenser. Contents of the invention [0003] The technical ...
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IPC IPC(8): F25B29/00F25B41/00F25B41/40
CPCF25B29/003F25B41/00
Inventor 李永堂
Owner 李永堂