Solar heat pump drying system

A technology of solar heat pump and drying system, which is applied in the direction of drying, drying machine, heating device, etc., and can solve the problems of environmental damage, high dehumidification rate, and ineffective realization

Inactive Publication Date: 2009-02-11
XI AN JIAOTONG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(Chen Dong, Xie Jihong. Heat pump technology and its application [M] Beijing: Chemical Industry Press, 2006: 267-273) This type of heat pump drying system has the characteristics of simple structure, compact, convenient operation, and wide application range; As a working medium, Freon has a destructive effect on the environment, and uses electric energy as the driving energy of the heat pump system, resulting in a low average dehumidification rate SMER (kg/kWh)
This becomes the main disadvantage of applying this type of heat pump
[0004

Method used

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] see figure 1, the present invention includes solar water heating system I, metal hydride heat pump system II and air drying system III,

[0018] Said solar water heating system 1 comprises a solar heat collector 1, the outlet and the inlet of the solar heat collector 1 communicate with the high-temperature water tank TH provided with the auxiliary heat source 2 through pipelines respectively, and the solar collectors connected with the high-temperature water tank TH are connected. A solar collector inlet valve V1 and a solar collector outlet valve V2 are respectively installed on the inlet and outlet pipes of the heater 1, and a first circulating water pump P1 is also connected to the inlet pipe of the solar collector 1;

[0019] The metal hydride heat pump system II consists of filled with ZrCr 0.6 Fe 1.4 、LaNi 4.65 mn 0.38 or LaNi 4.83 mn 0.17...

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Abstract

The invention discloses a solar heat pump drying system, which comprises a solar hot-water system, a metal hydride heat pump system and an air drying system that are coupled with one another. The solar hot-water system adopts a forced circulation hot water system, heat energy collected from a solar collector is used as energy driving the metal hydride heat pump system to circulate, and heat energy and cold energy generated when a metal hydride heat pump absorbs and releases hydrogen are used as heat source and cold source of an air heater and an air cooler. Air in the drying chamber is pressurized by an axial-flow fan to be separated out moisture through the air cooler and is heated to required temperature by the air heater respectively, and is sent back to the air drying chamber to complete the drying process. The solar heat pump drying system uses the advantages of solar energy and hydrogen energy simultaneously, and has the characteristics of cleanness, high efficiency, energy conservation, high dehumidification rate, wide application range of drying temperature, accurate control of drying temperature, coupled application with other solar utilization device, and the like.

Description

technical field [0001] The invention relates to solar energy application technology, chemical heat pump, drying technology, gas-solid reactor for heating and cooling, and in particular to a solar heat pump drying system. Background technique [0002] Drying is widely used in industrial and agricultural production and consumes a lot of energy. Countries all over the world are doing a lot of research on energy-saving technologies for drying processes. As a new energy-saving technology, the heat pump drying system has gradually become a research hotspot because it has obvious advantages in energy consumption and drying cost compared with conventional airflow drying. The heat pump drying system is a dehumidification and drying equipment that does not use electric heating wire heating or other heat source radiation heating. The traditional heat pump drying system is similar to the ordinary refrigeration system. Through the continuous operation of the compressor and the expansion...

Claims

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Application Information

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IPC IPC(8): F26B23/10
Inventor 张早校孟翔宇杨福胜邓建强
Owner XI AN JIAOTONG UNIV
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