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Fourth type heat pump cycle

A heat pump cycle, the fourth technology, applied in the field of low-temperature waste heat utilization, can solve the problems of limited application fields and inability to directly recover

Inactive Publication Date: 2014-02-12
刘辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low-pressure steam inhaled by the steam injection heat pump can be exhausted exhaust steam or flash steam generated by high-temperature condensed water. Since this type of heat pump can only recover steam, for low-temperature liquid waste heat, such as low-temperature hot water containing The heat cannot be recovered directly, which greatly limits its application fields.

Method used

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  • Fourth type heat pump cycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 The heat pump cycle of the first type and the fourth type shown is realized in this way:

[0021]① Structurally, it consists of high temperature absorber 1, first condenser 2, first throttle valve 3, second condenser 4, refrigerant liquid pump 5, evaporator 6, absorber 7, first solution pump 8, second Composed of a solution heat exchanger 9, a second solution heat exchanger 10, a first generator 11, a second generator 12, a third solution heat exchanger 13, a second solution pump 23 and an ejector 14, high temperature absorption Device 1 has a solution pipeline to communicate with the first generator 11 through the second solution heat exchanger 10, and the first generator 11 has a solution pipeline to communicate with the second solution pipeline through the first solution heat exchanger 9 and the third solution heat exchanger 13. The generator 12 communicates, the second generator 12 has a solution pipeline to communicate with the absorber 7 through the seco...

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Abstract

The invention relates to fourth type heat pump cycle, which consists of a high-temperature absorber, a first condenser, a first throttling valve, a second condenser, a refrigerant liquid pump, an evaporator, an absorber, a first solution pump, a first solution heat exchanger, a second solution heat exchanger, a third solution heat exchanger, a second solution pump, an ejector and a plurality of generators. Jet type heat pump cycle and two types of absorption heat pump cycle are organically combined, so high-grade driving steam temperature difference and pressure difference are effectively utilized, high heat supply temperature and high-efficiency heat energy utilization ratio are obtained, high-grade driving steam can be efficiently utilized, smaller compression ratio and higher ejection coefficient are achieved, and the fourth type heat pump cycle is excellent in energy-saving efficiency as compared with the traditional heat supply method.

Description

technical field [0001] The invention belongs to the technical field of low-temperature waste heat utilization. Background technique [0002] Absorption heat pumps use thermal energy as power, and use the reverse Carnot cycle to transfer heat from low temperature to high temperature. It is especially suitable for occasions with a large amount of waste heat. The condensed state of waste heat can be gaseous or liquid. For the absorption heat pump with lithium bromide aqueous solution as the working medium, due to the physical properties of the working medium itself, in order to ensure the safe and stable operation of the heat pump unit, there are certain requirements for the temperature and concentration of the solution. In order to make the absorption heat pump work in a reasonable In order to achieve the best work efficiency by operating in temperature and concentration ranges, people have developed multi-effect and multi-stage first-class absorption heat pumps: at the same w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B15/02F25B27/02
CPCY02B30/625Y02A30/274
Inventor 刘辉
Owner 刘辉
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