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Absorption refrigerator

A technology for absorption and refrigerators, which is applied in the direction of adsorption machines, refrigerators, refrigeration components, etc., and can solve problems such as the inability to accurately determine the optimal circulation rate of absorption liquids in the heat exchanger stages of multiple absorption refrigerators

Inactive Publication Date: 2004-10-20
ROCKY RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the current state of the art cannot accurately determine the optimum number of heat exchanger stages and the optimum circulation rate of the absorption liquid in multiple absorption refrigerators

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0042] figure 1 It is a schematic diagram of the absorption refrigerator according to the first embodiment of the present invention. The absorption refrigerator A in the figure is a reverse cycle absorption refrigerator with triple absorption, including: absorber 1, which allows the absorption liquid whose main component is lithium bromide to absorb water and other coolants; low temperature heat exchanger 2 , It heats the diluted absorption liquid whose concentration is reduced due to the absorption of the coolant in the absorber 1, and evaporates part of the coolant from the diluted absorption liquid, thereby obtaining a medium-concentration absorption liquid from the concentration of the diluted absorption liquid; The medium-temperature heat exchanger 3 heats the medium-concentration absorption liquid obtained by the low-temperature heat exchanger 2, and further vaporizes part of the coolant, so that the absorption liquid is further concentrated, thereby obtaining a high-concen...

Embodiment 2

[0079] figure 2 This shows the absorption refrigerator in the second embodiment of the present invention. The absorption refrigerator A2 in Example 2 has improved the heat exchange system of the absorption refrigerator A in Example 1, and the rest of the structure is the same as the former.

[0080] Specifically, the absorption refrigerator A2 includes: a high-temperature heat exchanger 55 for transferring the ultra-high-concentration absorption liquid back from the high-temperature heat exchanger 4 to the absorber 1 through the return pipe 44 and passing through the high-concentration liquid feed pipe 45 for heat exchange between the high-concentration absorption liquid fed to the high-temperature heat exchanger 4; a medium-temperature heat exchanger 56 for heat exchange between the following two aspects of the liquid, on the one hand, after the above-mentioned heat exchange The mixed liquid of the ultra-high-concentration absorption liquid and the high-concentration absorption ...

Embodiment 3

[0083] Fig. 3 shows the principle structure of the absorption refrigerator in the third embodiment of the present invention. The absorption refrigerator A3 in the third embodiment is also improved on the basis of the absorption refrigerator A in embodiment 1. In the path from the medium temperature heat exchanger 3 to the high temperature heat exchanger 4 to feed the absorption liquid A second medium-temperature heat exchanger 8 is added, which can be called an absorption refrigerator with four-stage heat exchange effect.

[0084] That is to say, on the basis of the absorption refrigerator A in the embodiment 1, the second medium temperature heat exchanger 8 is added to the structure of the absorption refrigerator A3, which uses the coolant vaporized by the high temperature heat exchanger 4 The steam heats and concentrates the absorption liquid (hereinafter referred to as the second medium-concentration absorption liquid) heated and concentrated by the medium-temperature heat exch...

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Abstract

An absorption refrigerator having three or four-stage regenerators connected in series wherein a prescribed ratio of concentrated absorption fluid is fed to the high-temperature regenerator by a part of the concentrated absorption fluid directly returned to the absorber.

Description

Technical field [0001] The present invention relates to an absorption refrigerator; more specifically, the present invention relates to an absorption refrigerator with multiple absorption effects and higher efficiency. The refrigerator includes interconnected three-stage or four-stage changers. Heater. Absorption refrigerators include cold water type and hot water type. Background technique [0002] At present, the dominant position in the industry is absorption refrigerators with single or double absorption, that is, a one-stage or two-stage heat exchanger that evaporates the coolant by increasing the temperature / pressure of the absorption liquid . [0003] When the liquid is heated and concentrated by an external source in the heat exchanger, the internal pressure of the coolant vapor generated as the heat source of the heat exchanger to absorb the liquid is relatively low, and it can generally be used without external heating. , Can heat and thicken the absorption liquid in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B15/00F25B15/06F25B49/04
CPCF25B49/043F25B15/06Y02B30/62F25B15/008Y02A30/27
Inventor 高畠修藏中岛邦彦齐藤健一荒井英治大田益臣
Owner ROCKY RES
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