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Ammonia absorption type refrigerating apparatus utilizing waste heat of exhaust

An absorption refrigeration and waste heat technology, applied in the field of absorption refrigeration, can solve the problems of low refrigeration coefficient, unused heat, and unrecycled ammonia cooling capacity, etc.

Inactive Publication Date: 2006-05-03
ほう啓東
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  • Abstract
  • Description
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Problems solved by technology

[0006] The refrigeration coefficient of the above-mentioned ammonia water absorption refrigeration device is low, and reason is: (1), the heat that the ammonia water mixed steam gives off when rectifier 6 is fractionated is not utilized; (2), in absorber 2, ammonia solution absorbs The heat that emits during ammonia is not utilized; (3), the cooling capacity of the low-temperature ammonia that comes out from evaporator 9 is not recycled

Method used

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  • Ammonia absorption type refrigerating apparatus utilizing waste heat of exhaust
  • Ammonia absorption type refrigerating apparatus utilizing waste heat of exhaust

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Embodiment Construction

[0018] The present invention is described in further detail by the following examples.

[0019] A kind of ammonia water absorption refrigerating device utilizing tail gas waste heat, such as figure 2 , and its workflow is as follows:

[0020] The high-temperature dilute ammonia solution from the shell-side solution outlet of the waste heat generator 11 enters the regenerator 13, exchanges heat with the lower-temperature concentrated ammonia solution sent back to the waste heat generator 11, and comes out of the regenerator 13 after the temperature drops. It enters the upper part of the generating-absorbing heat exchanger 16 through the solution throttling valve 21 for ammonia absorption and heat exchange, then exits from the bottom of the generating-absorbing heat exchanger 16 and enters the absorber 17 for further ammonia absorption , and dissipate the heat generated by absorption at the same time; the concentrated ammonia solution after coming out from the absorber 17 ente...

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Abstract

The invention discloses an ammonia absorption refrigerating device of tail gas residual heat, which consists of ammonia solution circulation loop and ammonia circulation loop, wherein the pumped cooling high concentrated ammonia solution is given back to the residual heat generator to heat, which utilizes the heat of heat regenerator, finestiller coiler, generation-absorption heat exchanger and the combination body of exhausting device and heat regenerator; the cooling quantity of low-temperature ammonia steam from evaporator and liquid ammonia from condenser is withdrawn to improve the refrigeration coefficient. The invention adapts the tail gas to heat directly, which can be used in other non residual heat occasions.

Description

technical field [0001] The invention relates to the technical field of absorption refrigeration, in particular to an ammonia water absorption refrigeration device utilizing waste heat of tail gas. Background technique [0002] Ammonia water absorption refrigeration is a refrigeration method powered by heat energy, which was widely used before the appearance of vapor compression refrigeration. The feature of ammonia water absorption refrigeration is that it directly uses heat energy as power, and it only needs to consume a small amount of auxiliary electric energy to realize refrigeration. In addition, the ammonia water absorption refrigeration has a large refrigeration temperature range, not only can be operated under air-conditioning conditions, but also can be applied in various industrial refrigeration where the refrigeration temperature is below zero Celsius. Therefore, under the condition of waste heat, the ammonia water absorption refrigeration device can be used to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B15/04F25B27/02
CPCF25B15/04F25B27/02F25B2333/006Y02A30/274Y02B30/625Y02P80/15
Inventor 庞启东张文辉
Owner ほう啓東
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