Film distillation backheating absorption type refrigerator

Abstract

The invention discloses a membrane distillation heat recovery absorption type refrigeration device which relates to the refrigeration technology field, the membrane distillation heat recovery absorption type refrigeration device comprises a generator, a condenser, a throttling device, an evaporator, a refrigerant pump, an absorber, a solution pump and a solution heat exchanger; the membrane distillation heat recovery absorption type refrigeration device is characterized in that: a membrane distillation mass transfer heat exchanger is arranged between the generator and the solution heat exchanger, the membrane distillation mass transfer forms a certain steam pressure difference at the hot side and the cold side solutions of a membrane, thereby realizing the heat recovery process. The membrane distillation heat recovery absorption type refrigeration device of the invention has the advantages that: the requirements on the temperature of a drive heat source are greatly reduced; the refrigeration coefficient is greatly improved; the absorption type refrigeration device is simplified, and the manufacturing process is improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a membrane distillation heat recovery absorption refrigeration device. Background technique [0002] The rapid development of absorption refrigeration technology is inseparable from the current research on energy and environmental protection issues. The existing research hotspots have two directions. The first is the absorption refrigeration technology driven by low-grade heat sources (such as solar energy or waste heat). This kind of technology is to make some improvements to the process on the basis of the two-stage absorption cycle to improve the refrigeration efficiency of the system; the second is the high-efficiency absorption refrigeration technology, which mainly studies the multi-effect absorption refrigeration cycle, researches injection, adsorption, pressurization Research on the absorption compound refrigeration cycle, the working medium of the absorption refrig...

AI Technical Summary

Problems solved by technology

This makes the generation temperature higher, so for low-grade heat sources with a temperature lower than 85°C, refrigeration can only be achieved through two-stage absorption, and the high-pressure generator of the multi-effect machine will require a higher generation temperature, which will lead to high-temperature solution corrosion , high-temperature solution surfactant and corrosion inhibitor failure and high-pressure pressure control and other problems, these problems are the main obstacles to the commercialization of three-effect machines

The application of the first patent will increase the vapor pressure difference on both sides of the membrane despite the increase in the generation surface area, which may reduce the thermal performance of the lithium bromide absorption refrigeration unit

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