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Absorption type refrigerator

An absorption refrigerator and absorber technology, applied in the direction of adsorption machines, refrigerators, refrigeration components, etc., can solve the problems that it is difficult to prevent low-temperature water from freezing, and achieve the effects of preventing freezing, inhibiting cooling, and inhibiting overcooling

Inactive Publication Date: 2009-10-14
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to effectively prevent the freezing of low temperature water just to remind attention

Method used

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  • Absorption type refrigerator
  • Absorption type refrigerator
  • Absorption type refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In the high-temperature regenerator 1, the dilute absorption liquid returned from the absorber 5 through the pipeline R1 by the dilute absorption liquid pump 8 is accommodated. . In this way, the dilute absorption liquid becomes a medium-concentrated absorption liquid, which is supplied to the low-temperature regenerator 2 through the pipeline R2, and passes through the high-temperature heat exchanger 6 halfway through heat exchange with the dilute absorption liquid flowing through the pipeline R1. The heat is dissipated and stored in the low-temperature regenerator 2 . On the other hand, the evaporated refrigerant vapor is supplied to the condenser 3 through the pipeline R3, and when passing through the low-temperature regenerator 2, it dissipates heat by exchanging heat with the medium-concentrated absorption liquid contained in the low-temperature regenerator 2 , becomes a vapor-liquid mixture, and then condenses to become a refrigerant liquid, which is stored at th...

Embodiment 2

[0058] image 3 is a configuration diagram showing a second embodiment of the present invention. In this embodiment, components having the same structure as those in the first embodiment are given the same symbols as above, and detailed description thereof will be omitted. In this embodiment, it is characterized in that the refrigerant liquid pump 13 supplies the refrigerant liquid stored at the bottom of the evaporator 4 to the refrigerant liquid distribution pipe 4a provided on the upper part of the evaporator 4 in the pipeline R6 A refrigerant liquid bypass line 19 connecting the downstream side of the refrigerant liquid pump 13 and the bottom of the absorber 5 is provided, and an on-off valve 20 is provided on the refrigerant liquid bypass line 19 . In the illustrated example, the refrigerant liquid bypass line 19 is formed as a bypass line connecting the upstream side and the downstream side of the on-off valve 18 of the line R9 using the line R9. In addition, it is pre...

Embodiment 3

[0065] Figure 5 is a configuration diagram showing a third embodiment of the present invention. In this embodiment, components having the same structure as those in the first embodiment are given the same symbols as above, and detailed description thereof will be omitted. In this embodiment, it is characterized in that a cooling water bypass line 21 connecting the upstream side of the absorber 5 and the downstream side of the absorber 5 of the cooling water line 11 is provided, and the cooling water bypass line An on-off valve 22 is provided on the road 21 .

[0066] In this embodiment, when the cooling water pump 12 is started independently when the absorption chiller is stopped, the on-off valve 22 is opened to allow part of the cooling water to flow from the cooling water pump 12 through the cooling water bypass pipe with small flow path resistance. Road 21 flows. Therefore, it is possible to reduce the flow rate of the cooling water passing through the inside of the ab...

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Abstract

The present invention relates to an absorption refrigerator, particularly a double-effect absorption refrigerator, which can reliably prevent low-temperature water in an evaporator from freezing when the cooling water pump is started alone when the operation is stopped. The high-temperature regenerator, low-temperature regenerator, condenser, evaporator, absorber, high-temperature heat exchanger, and low-temperature heat exchanger are connected through pipelines, and are arranged to pass through the inside of the absorber and then through the cooling water pipeline inside the condenser, and are arranged to pass through the evaporator The load-side low-temperature water pipeline inside the reactor is equipped with a concentrated absorption liquid pump that supplies concentrated absorption liquid from the low-temperature regenerator to the absorber, a dilute absorption liquid pump that supplies dilute absorption liquid from the absorber to the high-temperature regenerator, and a pump that supplies the evaporator to the evaporator. The refrigerant distribution pipe supplies a refrigerant liquid pump that supplies the refrigerant liquid stored at the bottom of the evaporator, and a cooling water pump that supplies cooling water to the cooling water pipeline. When the operation is stopped, the cooling water pump is started independently. The low-temperature water pumps in the side low-temperature water pipelines operate in conjunction.

Description

technical field [0001] The present invention relates to an absorption refrigerating machine, especially a double-effect absorption refrigerating machine, which can prevent the low-temperature water on the load side inside the evaporator from freezing when the operation is stopped. Background technique [0002] Generally, the high-temperature regenerator, low-temperature regenerator, condenser, evaporator, absorber, high-temperature heat exchanger, and low-temperature heat exchanger of a double-effect absorption refrigerator are connected by pipelines, and important parts of the pipelines pass The thick absorption liquid pump, the thin absorption liquid pump, the refrigerant liquid pump and the on-off valve etc. are set up to form the circulation pipeline of the absorption liquid system and the circulation pipeline of the refrigerant system. Furthermore, the low-temperature water returned from the load side is cooled by the heat of evaporation of the refrigerant liquid in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B15/00
CPCY02B30/62Y02A30/27F25B15/00F25B49/043F25B2315/006F25B2400/04F25B2600/2501
Inventor 石崎修司小林崇浩德田彻哉佐藤隼介小穴秀明石福聪一
Owner SANYO ELECTRIC CO LTD
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