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Circulating air temperature and humidity regulation and control system for tobacco shred on-site winnowing machine and control method thereof

A control system, a technology of circulating air, applied in electrical program control, chemical instruments and methods, program control in sequence/logic controllers, etc., to reduce the loss of leaf silk, reduce energy consumption, and improve sweetness and comfort. Effect

Pending Publication Date: 2018-07-20
CHINA TOBACCO SICHUAN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide an implementation of the circulating air temperature and humidity control system of the shred air separator in situ, hoping to solve the problem of keeping the circulating air in a constant temperature and humidity state according to the process requirements

Method used

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  • Circulating air temperature and humidity regulation and control system for tobacco shred on-site winnowing machine and control method thereof
  • Circulating air temperature and humidity regulation and control system for tobacco shred on-site winnowing machine and control method thereof
  • Circulating air temperature and humidity regulation and control system for tobacco shred on-site winnowing machine and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1, high temperature and high humidity, that is, the temperature and absolute humidity of the circulating air are higher than the upper limit of the set value, the cooling and dehumidification device is preferentially turned on, and the frequency conversion compressor 303 is adjusted according to the difference between the actual value of the temperature and humidity of the circulating air and the set value For power, first realize low temperature and equal humidity, and then adjust according to the corresponding situation in Example 7. For example, the actual temperature of the circulating air is 35.00°C, the relative humidity is 80.00%, and the absolute humidity is 31.66g / m 3 , first cool down and dehumidify to a temperature of 18.81°C, a relative humidity of 100%, and an absolute humidity of 16.12g / m 3 , and then turn on the heating device to a temperature of 25.00°C, a relative humidity of 70.00%, and an absolute humidity of 16.12g / m 3 .

Embodiment 2

[0047] Example 2, high temperature and equal humidity, that is, the temperature of the circulating air is higher than the upper limit of the set value and the absolute humidity is within the range of the set value, the cooling and dehumidification device is turned on first, and adjusted according to the difference between the actual value of the temperature and humidity of the circulating air and the set value The power of the frequency conversion compressor 303 first realizes low temperature and equal humidity, and then adjusts it according to the corresponding situation in Embodiment 7. For example, the actual temperature of the circulating air is 35.00°C, the relative humidity is 40.75%, and the absolute humidity is 16.12g / m 3 , cooling and dehumidification to a temperature of 25.00°C, a relative humidity of 70.00%, and an absolute humidity of 16.12g / m 3 .

Embodiment 3

[0048] Example 3, high temperature and low humidity, that is, the temperature of the circulating air is higher than the upper limit of the set value and the absolute humidity is lower than the lower limit of the set value, the cooling and dehumidification device is turned on first, and the frequency conversion compression is adjusted according to the difference between the actual value of the circulating air temperature and the set value The power of the machine 303 first realizes isothermal and low humidity, and then adjusts according to the corresponding situation in Embodiment 8. For example, the actual temperature of the circulating air is 35.00°C, the relative humidity is 25.00%, and the absolute humidity is 9.89g / m 3 , first cool down and dehumidify to a temperature of 25.00°C, a relative humidity of 42.94%, and an absolute humidity of 9.89g / m 3 , and then turn on the humidifier until the temperature is 25.00°C, the relative humidity is 70.00%, and the absolute humidity ...

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Abstract

The invention discloses a circulating air temperature and humidity regulation and control system for a tobacco shred on-site winnowing machine and a control method thereof and relates to the field oftobacco processing. A circulating air temperature and humidity regulation and control method for the tobacco shred on-site winnowing machine includes the following steps that according to process demands, circulating air temperature and a relative humidity range are set, and a controller calculates and sets an absolute humidity central value of air; a temperature and humidity sensor monitors the temperature of circulating air and an actual value of relative humidity in real time; the controller receives information of the temperature and humidity sensor, calculates actual absolute humidity ofthe air and compares the circulating air temperature and the actual value of absolute humidity with set values to make a judgment and send a control instruction; a cooling and dehumidifying device, aheating device and a humidifying device carry out corresponding execution actions according to instruction signals, the circulating air passes by the temperature and humidity sensor to form a cycle until the circulating air temperature and the absolute humidity meet set requirements, constant temperature and humidity control over the circulating air are achieved at last, and the quality stabilityof tobacco shreds is guaranteed.

Description

technical field [0001] The embodiments of the present invention relate to the field of tobacco processing, and in particular to a temperature and humidity control system and control method for the circulating air of an in-situ wind separator for shredded leaves. Background technique [0002] In the production of shredded cigarettes, on-site winnowing equipment is widely used due to its unique technical advantages. The specific functions are: 1. Remove stems, stems, wet lumps and other debris in shredded tobacco, which is conducive to improving the rolling process Quality stability; 2. Loosely shorten the tangled shredded tobacco, which is beneficial to improve the uniformity of the shredded tobacco structure; 3. Lower the temperature of the shredded tobacco, which is beneficial to increase the filling value of the shredded tobacco. But there are still some deficiencies in the process of use: 1. After the high-temperature leaf silk is selected by winnowing, there will be wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/18B07B11/02B07B11/04G05B19/04
CPCA24B3/18G05B19/04B07B11/02B07B11/04
Inventor 刘民昌刘洋温若愚文武杨小琴曾正蓉何玲英耿宗泽宋光富
Owner CHINA TOBACCO SICHUAN IND CO LTD
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