Sodium sulfocyanate-ammonia diffusion absorbing refrigerator

Abstract

It's a kind of ammonia-sodium thiocyanate diffusion-absorption refrigerating installation that belongs to refrigeration technology trade, which can be used in fishing vessels, cold storages, refrigerated cars and all occasions needing to refrigerate. In existing devices, some devices only can made and fetch the temperature above zero degree, which makes its application range limited; some devices need rectification device, their refrigerating output is less and it's difficult to be used in the occasions with great demand of refrigeration. The invention includes generator (1), condenser (3), absorber (5), evaporator (7), pump (8) and solution heat exchanger (9). They connect each other and form a complete circulation loop. Solution is separated in gas-liquid separator (2), and is heated in the solution heat exchanger (9); dispersal tank (6) connects evaporator (7) to form a closed loop through pump (8) at the bottom of it, and connects respectively the upper end and the lower end of the absorber (5) in order to make ammonia solution absorb the ammonia smoothly in the diffusion effect of hydrogen. The equipment's structure is compact, it can satisfy different demand of refrigerating output and has a good application prospect.

Description

Technical field: It belongs to the refrigeration technology industry and is used in ocean-going fishing boats, cargo ships and all occasions that require refrigeration. It can be used in fishing boat ice machines, car air conditioners, cold stores, refrigerated trucks and military. Background technique: Artificial refrigeration was born more than 100 years ago, thermal energy refrigeration is mainly absorption refrigeration. At present, there are three common absorption refrigeration methods: lithium bromide water absorption type, ammonia water absorption type, and ammonia hydrogen water absorption and diffusion type. Lithium bromide absorption refrigeration system is one of the most studied ones, but because it can only produce temperatures above zero, the scope of use is often limited to air conditioners, and it is highly corrosive. Ammonia water absorption refrigeration is the originator of artificial refrigeration. In the field of artificial refrigeration, there is ...

AI Technical Summary

Problems solved by technology

The working fluid of this system still uses ammonia and water, so a rectification device must be installed. At the same time, due to the use of a siphon pump for circulation, the cooling capacity is generally small, and the cooling efficiency (COP) is generally 0.4 to 0.5, which is difficult to meet the cooling capacity demand. big occasion

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