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Hot air and vacuum pulsation combined drying method and equipment based on temperature and humidity control

A technology of temperature and humidity control and vacuum pulsation, which is applied in lighting and heating equipment, dryers for stationary materials, and drying of solid materials by heating, etc. It can solve unreasonable exhaust gas emissions, poor convective heat transfer effect of hot air, and affect drying efficiency, etc. question

Active Publication Date: 2019-10-22
CHINA AGRI UNIV
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Problems solved by technology

[0010] The purpose of the present invention is to provide a combination drying equipment of hot air and vacuum pulsation with temperature and humidity control, so as to solve the unscientific hot air circulation mode in the hot air drying stage, unreasonable waste gas discharge, and convective heat transfer of hot air in the existing hot air vacuum combined drying technology. Poor effect, uneven drying of materials and slow heating rate, pressure operation mode in vacuum drying stage easily affects drying efficiency, etc.

Method used

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  • Hot air and vacuum pulsation combined drying method and equipment based on temperature and humidity control
  • Hot air and vacuum pulsation combined drying method and equipment based on temperature and humidity control

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Embodiment Construction

[0085] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0086] like figure 1 and figure 2 As shown, a temperature and humidity controlled hot air and vacuum pulsating combined drying equipment includes: a circulating hot air drying system, a combined drying body, a pulsating vacuum generating system, a vacuum heating system and an automatic control system.

[0087]The circulating hot air drying system includes a water tank 1, an atomizing pump 2, an air heating box 4, a nozzle 5, a heating pipe 7, an electric air heating device 9, a hot air inlet pipeline 10, a hot air return pipeline 36, a deflector 37, Centrifugal variable frequency fan 38 and axial flow fan 32; Wherein,

[0088] The water tank 1 and the first side of the air heating tank 4 are connected through a first pipeline, and an atomizing pump 2 is arranged on the first pipeline between the water ...

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Abstract

The invention belongs to the technical field of agricultural product machining, and particularly relates to hot air and vacuum pulsation combined drying method and equipment based on temperature and humidity control. The invention aims to provide the hot air and vacuum pulsation combined drying equipment based on the temperature and humidity control, so that the problems of an existing hot air andvacuum combined drying technology that during the hot air drying stage hot, the hot air circulation mode is not scientific, the waste gas discharge is not reasonable, the hot air convection heat exchange effect is poor, the material drying is not uniform, the heating rate is low, the drying efficiency is easily influenced by the pressure operation mode in the vacuum drying stage and the like aresolved. The equipment comprises a circulating hot air drying system, a combined drying machine body, a pulsating vacuum generation system, a vacuum heating system and an automatic control system. According to the method and the equipment, the machining efficiency of the hot air vacuum combined drying technology can be remarkably improved, and the machining energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural product processing, and in particular relates to a combined drying method and equipment of hot air and vacuum pulsation with temperature and humidity control. Background technique [0002] Drying is an important part of agricultural product processing. Hot air vacuum combined drying technology refers to a new type of drying technology that uses hot air drying and vacuum drying in different drying stages in the integrated combined drying equipment. It has good product quality (close to vacuum drying), low drying energy consumption, and automatic drying. high degree of advantages. [0003] At present, there are still many defects in the hot air vacuum combined drying technology, which restricts the popularization and application of the technology. [0004] The hot air drying stage of combined drying has the following problems: [0005] a. The hot air circulation method is unreasonable. Usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B9/06F26B23/06F26B3/30F26B21/00A23N12/08
CPCA23N12/08F26B3/30F26B9/06F26B21/004F26B23/06
Inventor 郑志安姜大龙王荣炎崔宝聪高磊
Owner CHINA AGRI UNIV
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