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Magnetic refrigerator and secondary refrigerant flow control method and control device thereof

A technology of magnetic refrigerators and control methods, which is applied in the direction of refrigerators, refrigeration and liquefaction, refrigeration components, etc., can solve the problems of low adjustment accuracy and efficiency, time-consuming and labor-intensive, etc., to improve flow control efficiency and ensure refrigeration Efficiency, the effect of ensuring cooling capacity

Active Publication Date: 2015-09-30
HAIER GRP CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is not only time-consuming and labor-intensive, but also the adjustment accuracy and adjustment efficiency are low

Method used

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  • Magnetic refrigerator and secondary refrigerant flow control method and control device thereof
  • Magnetic refrigerator and secondary refrigerant flow control method and control device thereof
  • Magnetic refrigerator and secondary refrigerant flow control method and control device thereof

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] See figure 1 , which is a functional block diagram of an embodiment of the magnetic refrigerator of the present invention.

[0035] Such as figure 1 As shown, the magnetic refrigerator of this embodiment includes a magnetic field system and a magnetic refrigeration bed arranged inside the magnetic field system. Specifically, the magnetic field system includes a first magnetic field system 11 and a second magnetic field system 13, a first magnetic refrigeration bed 12 is arranged in the first magnetic field system 11, and a second magnetic refrigeration bed is arranged in the second magnetic field system 13. 14. Both the first magnetic refrigeration bed 12 and the second magnetic refrigeration bed 14 are filled with magnetic working medium...

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Abstract

The invention discloses a magnetic refrigerator and a secondary refrigerant flow control method and control device thereof. The method comprises the following steps that real-time sampling is conducted on temperature of a secondary refrigerant of the cold end of the magnetic refrigerator, and then the temperature sampling value is obtained; the change of the temperature is calculated according to the temperature sampling value, the change of the temperature is multiplied by the proportionality coefficient, and the obtained result serves as the change of the secondary refrigerant speed; the change of the speed and the speed corrected value are added to obtain the actual speed; a secondary refrigerant driving device is controlled to rotate at the actual speed, the secondary refrigerant is driven to flow, and then the control over the secondary refrigerant flow quantity is achieved; the proportionality coefficient and the speed corrected value are constants. The secondary refrigerant flow control method is adopted in the magnetic refrigerator, and the automatic, fast and accurate control over the secondary refrigerant flow quantity in the magnetic refrigerator can be achieved.

Description

technical field [0001] The invention belongs to the technical field of magnetic refrigeration, and in particular relates to a magnetic refrigerator and a flow control method and control device for a brine. Background technique [0002] A magnetic refrigerator is a refrigeration device that uses the magnetocaloric effect for refrigeration. The magnetocaloric effect is a property of the magnetic material to absorb and release heat due to the change of internal magnetic entropy during the process of magnetization and demagnetization. The magnetic refrigerator includes a magnetic field system, a magnetic refrigeration bed set inside the magnetic field system, a magnetic working medium filled in the magnetic refrigeration bed, a cold end heat exchanger, a hot end heat exchanger, and a load cooling fluid flowing in the magnetic refrigerator. agent and the driving device that provides power for the brine. The magnetic refrigeration bed has a cold end connected with the cold end ...

Claims

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Application Information

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IPC IPC(8): F25B49/00F25B21/00
CPCF25B21/00F25B49/00F25B2321/002F25B2600/05Y02B30/00
Inventor 马壮刘杰唐林强张立臣王晶晶徐培培
Owner HAIER GRP CORP
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