Absorption-type refrigerator

Abstract

The objective of an absorption-type refrigerator is to stabilize the temperature of the salt water supplied to a heat load circulation from an evaporator. The absorption-type refrigerator is provided with a low heat source regenerator (9), a high temperature regenerator (5), a low temperature regenerator (6), an evaporator (1), a first condensator (7), a second condensator (10) and an absorbing device (2), connected through pipings to form circulation paths of the absorption liquid and refrigerant respectively. The absorption-type refrigerator is capable of simple-effect operating, single / double-effect operating or double-effect operating, for the single-effect operation, the heat water supplied to the low heat source regenerator (9) is used as a heat source to heat the absorption liquid,for the single / double-effect operation or the double-effect operation, a fuel burner (4) of the high temperature regenerator (5) is used as a heat source to heat the absorption liquid. An intermediate absorption liquid storage part (5C) of the high temperature regenerator is connected with a concentrated absorption liquid pipe (25) from the low temperature regenerator to the absorbing device by an absorption liquid supply pipe (27) with an on-off valve (V2).

Description

technical field [0001] The present invention relates to an absorption refrigerator having a low heat source regenerator that uses hot water or the like as a heat source. Background technique [0002] In general, there is known an absorption refrigerating machine that has a low-heat source regenerator, a high-temperature regenerator, a low-temperature regenerator, an evaporator, a condenser, and an absorber, and these devices are connected by piping. Circulation paths for the absorption liquid and the refrigerant are formed separately (for example, refer to Patent Document 1). This type of absorption refrigerator can be operated by selecting an operation mode among single-effect operation, single-effect operation or double-effect operation. In this single-effect operation, the hot water supplied to the low heat source regenerator is used as a heat source to heat the absorption liquid In the single-effect operation or double-effect operation, the gas burner of the high-temper...

AI Technical Summary

Problems solved by technology

[0004] However, for example, when switching from single-effect operation to single-effect operation or double-effect operation, cleaning of the gas burner is required during gas heating operation. Delay during

Therefore, the absorption liquid immediately after the start of operation is not sufficiently heated and regenerated in the high-temperature regenerator and the low-temperature regenerator, and since the absorption liquid discharged from the high-temperature regenerator is mixed with the low-concentration absorption liquid remaining in the circulation path, Causes a decrease in the concentration of the absorbing liquid supplied to the absorber

Therefore, the amount of refrigerant absorbed by the absorbent in the absorber fluctuates, which may cause fluctuations in the evaporation amount of the refrigerant in the evaporator, and also fluctuate the temperature of the brine circulated from the evaporator to the heat load.

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