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Regenerative thermodynamic cycle and novel regenerative mechanical compression heat pump

A thermodynamic cycle and mechanical compression technology, used in heat pumps, compressors, refrigerators, etc., to solve problems such as inflexibility of heat recovery parameters, difficulty in ensuring rationalization of performance index or minimization of temperature difference loss.

Pending Publication Date: 2022-02-01
李华玉
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Problems solved by technology

However, in the traditional regenerative mechanical compression heat pump, the heat absorption side of the regenerative process is relatively fixed, which makes the regenerative parameters not flexible enough, and in many cases it is difficult to ensure the rationalization of the performance index or the minimization of the temperature difference loss

Method used

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  • Regenerative thermodynamic cycle and novel regenerative mechanical compression heat pump
  • Regenerative thermodynamic cycle and novel regenerative mechanical compression heat pump
  • Regenerative thermodynamic cycle and novel regenerative mechanical compression heat pump

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Embodiment Construction

[0039] The first thing to explain is that in the expression of the structure and process, it will not be repeated if it is not necessary; the obvious process will not be expressed. The present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0040] figure 1 The example regenerative thermodynamic cycle in the T-s diagram shown works like this:

[0041] (1) From the point of view of the cycle process:

[0042] Circulation of working fluid—12 process of absorbing heat from a low-temperature heat source, 23 processes of adiabatic boosting temperature, 34 processes of absorbing heat from a circulating working fluid, 45 processes of adiabatic boosting and heating, 56 processes of releasing heat to a high-temperature heat source and cooling to a process 34 Carry out exothermic reheating and cooling process 67, adiabatic depressurization expansion process 71—7 processes in total.

[0043] (2) From the point of view of energy ...

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Abstract

The invention provides a regenerative thermodynamic cycle and a novel regenerative mechanical compression heat pump, and belongs to the technical field of thermodynamics and heat pumps. The regenerative thermodynamic cycle refers to a closed process consisting of seven processes, namely a low-temperature heat source heat absorption process 12, a pressure increasing process 23, a self-cycle working medium heat absorption process 34, a pressure increasing process 45, a high-temperature heat source heat release process 56, a cycle working medium heat release process 67 and a pressure reducing process 71 which are sequentially performed by a cycle working medium with a certain mass; and based on regenerative thermal cycle, the corresponding novel regenerative mechanical compression heat pump is constructed.

Description

Technical field: [0001] The invention belongs to the technical field of thermodynamics and thermodynamics. Background technique: [0002] Cold demand, heat demand and power demand are common in human life and production. Using gas as the circulating working medium, the mechanical compression heat pump based on the Brayton reverse cycle is an important means to achieve refrigeration and high-efficiency heating; among them, heat recovery technology measures are often used to achieve deep refrigeration or reduce the cycle compression ratio. However, in the traditional regenerative mechanical compression heat pump, the heat absorption side of the regenerative process is relatively fixed, which makes the regenerative parameters not flexible enough, and in many cases it is difficult to ensure the rationalization of the performance index or the minimization of the temperature difference loss. [0003] The invention provides a regenerative thermodynamic cycle with flexible regenera...

Claims

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Application Information

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IPC IPC(8): F25B9/06F25B9/08
CPCF25B9/06F25B9/08F25B9/00F25B30/02
Inventor 李华玉李鸿瑞
Owner 李华玉
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