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High-efficiency ammonia-water absorption-type refrigeration device

An absorption refrigeration, ammonia water technology, applied in refrigerators, refrigeration components, adsorption machines, etc., can solve problems such as system efficiency decline, and achieve the effect of improving the refrigeration coefficient, increasing the absorption pressure, and simplifying the structure.

Inactive Publication Date: 2010-07-14
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difference between the condensing pressure and the evaporating pressure reaches 1.049MPa, and the throttling of the refrigerant (ammonia liquid) dissipates this part of the pressure energy in the system, causing the system efficiency to drop

Method used

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  • High-efficiency ammonia-water absorption-type refrigeration device
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  • High-efficiency ammonia-water absorption-type refrigeration device

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Embodiment Construction

[0025] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0026] In order to solve the problems existing in the prior art, the present invention provides a new type of ammonia water absorption refrigeration system. The system uses ejectors to replace the original dilute solution throttling device, and the dilute solution from the solution heat exchanger is used as the ejector. The working fluid, the ammonia vapor from the evaporator is the injection fluid; the dilute solution and the ammonia vapor are mixed and pressurized in the ejector and then injected into the absorber. The ejector recovers the energy in the process of depressurizing the dilute solution to increase the absorption pressure of the absorber. Under the same conditions as the cooling water temperature and the heat source temperature of t...

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Abstract

The invention discloses a high-efficiency ammonia-water absorption-type refrigeration device, which adopts an ejector to substitute the original dilute solution throttling device, adopts dilute solution from a solution heat exchanger as the work fluid of the ejector and adopts ammonia steam from an evaporator as the driving fluid; and the dilute solution and the ammonia steam are injected into an absorber after being mixed and pressurized inside the ejector. The ejector recycles the energy discharged during the depressurization process of the dilute solution to be used for improving the absorption pressure of the absorber, so under the condition that the cooling water temperature and the heat source temperature are equal to that of the conventional ammonia-water absorption refrigeration system, the refrigeration coefficient of the system is improved; and moreover, since the ammonia steam and the ammonia-water dilute solution are adequately mixed inside the ejector, the absorber is simplified to a simple cooler.

Description

Technical field: [0001] The invention relates to an ammonia water absorption refrigerating system, in particular to an ammonia water absorption refrigerating system which utilizes dilute solution spraying, mixing, pressurization and absorption. Background technique: [0002] The basic principle of conventional ammonia water absorption refrigeration system is as follows: figure 1 As shown, it mainly includes the following parts: condenser A, ammonia liquid throttling device B, evaporator C, dilute solution throttling device F, absorber E, generator H, solution heat exchanger G, solution circulation pump D and distribution Condenser I. [0003] The ammonia liquid cooled by the cooling water A1 in the condenser A is throttled and depressurized by the ammonia liquid throttling device B, and then evaporated and refrigerated by the carrier refrigerant C1 in the evaporator C; the evaporated ammonia vapor is sent to the absorber E , the ammonia vapor is cooled by the cooling water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B15/04F25B41/00
CPCY02B30/62Y02A30/27
Inventor 孙文哲杜帅苏子云张雪亮鹿磊
Owner SHANGHAI MARITIME UNIVERSITY
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