Low-environment temperature heat pump drying unit

A drying unit and circulating drying technology, applied in local stirring dryers, dryers for static materials, heat pumps, etc., can solve the problems of reduced operating efficiency, high cost, affecting the use range of drying heat pumps, etc., to improve reliability, improve The effect of heat exchange

Pending Publication Date: 2018-04-20
BRIGHT AIR CONDITIONING
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] Drying technology is widely used in many fields of social production. The heat of existing drying equipment mainly comes from coal, fuel oil or electric heating wire, which has the disadvantages of high energy consumption and high cost.
[0003] At present, drying heat pumps are favored by many drying manufacturers for their advantages of no pollution and low energy consumption. However, simple heat pump systems are generally used to provide drying heat. Stability and reduced operating efficiency have affected the range of use of the dry heat pump; in addition, the dry heat pump does not perform controlled dehumidification and heat recovery operations based on real-time temperatures

Method used

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  • Low-environment temperature heat pump drying unit

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Embodiment Construction

[0020] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0021] The working process and working principle of a low ambient temperature heat pump drying unit are as follows:

[0022] 1. Circulating drying medium process: such as figure 1 As shown, condenser 4→drying circulation fan 27→supply air equalizing plate 23→drying chamber 28→return air equalizing plate 25→condenser 4; circulates through the air duct.

[0023] Condenser 4 is connected with drying circulating fan 27 by air channel,...

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Abstract

The invention discloses a low-environment temperature heat pump drying unit. The unit comprises a circulating drying medium process, a dehumidifying and drying process and a refrigerant drying systemprocess; the refrigerant drying system process comprises a main path refrigerant loop channel, a compressor air-supplement enthalpy-increasing refrigerant loop channel and a refrigerant system defrosting process; and the drying system capable of realizing safe operation in the low-temperature environment or a severe environment through jet enthalpy increasing is high in heating capacity is high inheat exchange efficiency, and can obtain enough heat from the low-temperature environment of minus 25 DEG C. According to the low-environment temperature heat pump drying unit, a heat pump technology, an air jetting enthalpy increasing technology and a heat recovery technology are adopted and are integrated into the low-environment temperature heat pump drying unit.

Description

technical field [0001] The patent of the present invention relates to the field of heat pump drying, in particular to a low ambient temperature heat pump drying unit organically combining heat collection pump technology, air jet enthalpy increasing technology and heat recovery technology. Background technique [0002] Drying technology is widely used in many fields of social production. The heat of existing drying equipment mainly comes from coal, fuel oil or electric heating wire, which has the disadvantages of high energy consumption and high cost. [0003] At present, drying heat pumps are favored by many drying manufacturers for their advantages of no pollution and low energy consumption. However, simple heat pump systems are generally used to provide drying heat. Stability and reduced operating efficiency have affected the range of use of the dry heat pump; in addition, the dry heat pump does not perform controlled dehumidification and heat recovery operations based on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B9/06F26B21/00F26B21/04F26B21/12F26B23/00F26B25/00F25B30/02F25B41/04F25B41/06F25B47/02F25B41/20F25B41/34
CPCF25B30/02F25B47/025F26B9/06F26B21/002F26B21/004F26B21/04F26B21/12F26B23/002F26B25/00F25B41/31F25B41/20Y02B30/52Y02P70/10
Inventor 高士清王强郭秀丽李栋李传庆高建华
Owner BRIGHT AIR CONDITIONING
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