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Low-temperature hot air drying device and method

A technology of low-temperature hot air drying and drying method, applied in lighting and heating equipment, heating to dry solid materials, drying solid materials, etc., can solve the problems of affecting drying speed, large heat waste, large energy consumption, etc. High drying efficiency, avoiding pollution and low energy consumption

Inactive Publication Date: 2019-06-28
江苏瑞德斯环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this dryer dries items, the moisture in the items stays in the air in the drying room. As the drying progresses, the moisture content in the air increases, and the ability of the air to absorb moisture becomes weaker and weaker, which affects the drying process. Drying speed; the temperature of the item after drying is high, and it takes a long time to cool down to room temperature, and the waste of heat is large, which also affects the progress of follow-up work
And when the humidity in the ambient air is high, the moisture content is large and the material requires low-temperature drying, the application of traditional heating and drying devices will be limited to a certain extent. In addition, the current drying equipment with dehumidification function, because the dehumidification and drying functions are carried out at the same time, energy consumption bigger

Method used

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  • Low-temperature hot air drying device and method
  • Low-temperature hot air drying device and method

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Experimental program
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Effect test

Embodiment 1

[0035] The following is attached figure 1 , the present invention provides a low-temperature hot air drying equipment, including a drying room 1 and a material rack 8 arranged in the drying room 1 for holding materials. The material rack 8 can be square, circular or any geometric shape, as long as The material can be laid flat on the rack 8, and it also includes a hot air drying module 2 and a dehumidification module 3 arranged in the drying room 1, as well as a cooling and heating module 4 and a control module 5 arranged outside the drying room 1. The top of the drying module 2 is provided with a first fan 7, and the air outlet side of the first fan 7 is provided with a material rack 8. The control module 5 is connected with the hot air drying module 2, the dehumidification module 3, the cooling and heating module 4 and the drying room respectively. The temperature and humidity sensor 6 in 1 is connected by communication, and the temperature and humidity in the drying room 1 ...

Embodiment 2

[0045] On the basis of Embodiment 1, the material rack 8 in this embodiment includes several material trays, and the material trays are loaded in an even amount, which ensures that each layer of material can be blown through, and improves the drying efficiency of the material.

Embodiment 3

[0047] This embodiment provides a drying method for low temperature hot air drying equipment, comprising the following steps:

[0048] Step S1, set the standard temperature T 0 and standard humidity H 0 ;

[0049] Step S2, the temperature and humidity sensor 6 detects the actual temperature T in the drying room 1 in real time 1 and actual humidity H 1 ;

[0050] Step S3, control module 5 will T 1 with T 0 and H 1 with H 0 Compare;

[0051] When T 1 ≥T 0 and H 1 0 , the control module 5 controls the drying equipment to be in a standby state;

[0052] When satisfying T 1 0 and H 1 0 At this time, the control module 5 controls the drying equipment to operate in a drying mode to dry the material; at this time, the first fan 7 and the second heat exhaust heat exchanger are turned on 22, and the first heat exhaust heat exchanger 21 is turned off. The second refrigeration cycle is connected, and the high-temperature and high-pressure gaseous refrigerant compressed by t...

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Abstract

The invention provides a low-temperature hot air drying device and method and belongs to the technical field of drying devices. The low-temperature hot air drying device comprises a drying chamber anda material frame arranged in the drying chamber and used for loading materials and further comprises a hot air drying module, a dehumidifying module, a refrigerating and heating module and a controlmodule, wherein the hot air drying module and the dehumidifying module are arranged in the drying chamber, and the refrigerating and heating module and the control module are arranged outside the drying chamber. The control module is in communication connection with the hot air drying module, the dehumidification module, the refrigerating and heating module and a temperature and humidity sensor arranged in the drying room. The temperature and humidity in the drying chamber are monitored through the temperature and humidity sensor. The control module controls the running state of the refrigerating and heating module, the dehumidifying module and the hot air drying module, and drying process of the material is achieved. Compared with the prior art, the low-temperature hot air drying device and method ensure the working environment of material drying in the drying room and are low in energy consumption and high in material drying efficiency.

Description

technical field [0001] The invention relates to the technical field of drying equipment, in particular to a low-temperature hot air drying equipment and a drying method. Background technique [0002] With the intensification of energy consumption in China and the macro-control of energy utilization by the national government, the advantages of heat pump drying equipment in energy saving and emission reduction have become increasingly prominent. In the prior art, low-temperature drying equipment such as food on the market includes heat pump dryers. When this dryer dries items, the moisture in the items stays in the air in the drying room. As the drying progresses, the moisture content in the air increases, and the ability of the air to absorb moisture becomes weaker and weaker, which affects the drying process. Drying speed: After the item is dried, the temperature is high, and it takes a long time to cool down to room temperature, and the waste of heat is large, which also a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B21/00F26B21/04F26B21/08F26B21/06F26B3/02
Inventor 徐立农丁磊王志文吴琦孙波王伟
Owner 江苏瑞德斯环保科技有限公司