Air-conditioning temperature zone layered variable porosity honeycomb structure regenerator

A technology of honeycomb structure and regenerator, which is applied in the direction of superheater, heat recovery system, energy-saving heating/cooling, etc. It can solve the problems of poor axial heat conduction ability, achieve small loss of flow resistance, optimize performance, good heat recovery and The effect of air permeability

Active Publication Date: 2022-05-20
XIAN TECH UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ceramics can be used as an option for traditional heat recovery materials, which are suitable for high temperatures and can reduce costs, but have poor axial thermal conductivity

Method used

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  • Air-conditioning temperature zone layered variable porosity honeycomb structure regenerator
  • Air-conditioning temperature zone layered variable porosity honeycomb structure regenerator
  • Air-conditioning temperature zone layered variable porosity honeycomb structure regenerator

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Embodiment

[0046] see figure 1 and figure 2 , the present invention is a variable porosity regenerator for Stirling heat pumps / refrigerators in air-conditioning temperature zones, which consists of four parts: high temperature layer 1, middle temperature layer 1, middle temperature layer 2, middle temperature layer 2 3 and low temperature layer 4. Among them, the high temperature layer 1 is connected to the hot end of the Stirling machine, the middle temperature layer 2 and the middle temperature layer 2 3 are connected to the high temperature layer 1 and the low temperature layer 4, and the low temperature layer 4 is connected to the cold end of the Stirling machine, and the working gas is absorbed at the hot end Thermal expansion, heat storage through the high temperature layer 1, middle temperature layer 1, middle temperature layer 2, and low temperature layer 4 of the regenerator, and the temperature decreases after flowing to the cold end. The working fluid is compressed at the co...

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Abstract

The invention is an air-conditioning temperature zone layered variable porosity honeycomb structure regenerator, which overcomes the problem of large flow resistance in the regenerator of the existing structure existing in the prior art, and can realize the regenerator Reduce heat loss, reduce heat loss, and ensure good heat recovery and air permeability. The invention includes a regenerator body, the regenerator body adopts a layered variable porosity honeycomb structure and adopts an axially penetrating regular channel, including a high-temperature layer, a medium-temperature layer and a low-temperature layer, and the porosity gradually increases from small to small from the hot end to the cold end. until big. The average porosity of the regenerator is 0.7-0.8, and the layered porosity of the regenerator is 0.5-0.9. The regenerator adopts a layer-by-layer reduction of internal equal-thickness grilles, with the centroid of the section as the symmetrical center, and the pores are evenly and symmetrically arranged in the cross-section of the regenerator. The aspect ratio of the regenerator is 1:1.

Description

Technical field: [0001] The invention belongs to the technical field of refrigeration, and relates to a regenerator for a Stirling heat pump / refrigerator in an air-conditioning temperature zone, in particular to a regenerator with a layered variable porosity honeycomb structure in an air-conditioning temperature zone. Background technique: [0002] The Stirling cycle can be used in heat engines, heat pumps and refrigeration. In a closed thermodynamic regeneration cycle, the working fluid is compressed and expanded at different temperature levels to achieve a net conversion of heat and work. Providing a temperature difference to a Stirling machine will result in a mechanical power output. In this case the Stirling machine is called a heat engine and its cycle is forward cycle. Conversely, bringing mechanical energy to the same engine will result in either cold or heat, in which case the Stirling machine is known as a heat pump or refrigerator. [0003] The regenerator is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B40/06
CPCF25B40/06Y02B30/52
Inventor 张君安王亚娟刘波卢志伟赵晓龙张天乐
Owner XIAN TECH UNIV
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