Multistage high-efficiency heat recovery type air source heat pump grain drying machine

An air source heat pump and heat recovery technology, applied in dryers, grain drying, heat recovery systems, etc., can solve the problems of insufficient heating capacity, time-consuming and labor-intensive, low energy efficiency, etc.

Pending Publication Date: 2018-11-06
苏州聚焓新能源科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing heat pump grain dryers mostly use air source, which is limited by the outdoor temperature; when the outdoor temperature is low, the heating capacity is insufficient and the energy efficiency is low
Since the grain will be accompanied by a large amount of dust when it is dry, dust removal treatment is required when dehumidification. Most of the current methods are filtered through a filter. Filter cleaning is time-consuming and labor-intensive

Method used

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  • Multistage high-efficiency heat recovery type air source heat pump grain drying machine

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specific Embodiment

[0021] Specific examples, see figure 1 : It includes three compressors, which are respectively a first compressor 1, a second compressor 2, and a third compressor 3, and the first compressor 1 is independently arranged with a first condenser 4, a first expansion valve 7, The first evaporator 10 and the second compressor 2 are respectively independently arranged with the second condenser 5, the second expansion valve 8, and the second evaporator 11, and the third compressor 3 is respectively independently arranged with the third condenser 6, the third The expansion valve 9, the third evaporator 12, the first circulation structure 13 corresponding to the first compressor 1 is located at the center, and the second circulation structure 14 corresponding to the second compressor 2 is located on the periphery of the first circulation structure 13, The third circulation structure 15 corresponding to the third compressor 3 is arranged on the outer periphery of the second circulation s...

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Abstract

The invention provides a multistage high-efficiency heat recovery type air source heat pump grain drying machine. Moisture removal air is dedusted through spray water, and exhaust dustless hot air enters a drying unit through an air total-heat exchanger so as to provide a heat source for drying. The multistage high-efficiency heat recovery type air source heat pump grain drying machine is high inheating capacity, high in evaporation efficiency and simple to operate, and comprises N compressors which are the first compressor, the second compressor to the N compressor, wherein N is a natural number not less than 2. A corresponding condenser, an expansion valve and an evaporator are independently arranged for each compressor; an outlet of each compressor is connected with a working medium inlet of the corresponding condenser; a working medium outlet of each condenser is connected with the corresponding expansion valve and then is connected with the corresponding evaporator; a working medium outlet of each evaporator is connected with a working medium inlet of the corresponding compressor; all condensers are arranged in the corresponding condenser areas; and a first heat exchange pipeline sequentially covers a shell area of each condenser.

Description

technical field [0001] The invention relates to the technical field of dryer structure, in particular to a multi-stage high-efficiency heat recovery type air source heat pump grain dryer. Background technique [0002] The existing heat pump grain dryers mostly use the air source, which is limited by the outdoor temperature; when the outdoor temperature is low, the heating capacity is insufficient and the energy efficiency is low. Since the grain will be accompanied by a large amount of dust when it is dry, dust removal treatment is required when dehumidification. Most of the current methods are filtered through a filter. Filter cleaning is time-consuming and labor-intensive. Contents of the invention [0003] In view of the above problems, the present invention provides a multi-stage high-efficiency heat recovery type air source heat pump grain dryer, which dedusts the dehumidified air by spraying water, and the dust-free hot air discharged passes through the air full hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/02F25B30/06F26B21/00
CPCF25B30/02F25B30/06F26B21/001F26B2200/06Y02B30/52Y02P70/10
Inventor 高勇
Owner 苏州聚焓新能源科技有限公司
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