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A constant temperature and humidity air supply device control system for pharmaceutical equipment

A constant temperature and humidity, control system technology, used in lighting and heating equipment, drying gas layout, furnaces, etc., can solve the problems of inability to track, fluctuate in the humidity control process, and low control accuracy, and achieve improved tracking performance and fast tracking control. , the effect of improving the control accuracy

Active Publication Date: 2021-10-26
重庆力为康智能装备有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention aims to solve the problems of slow or long-term tracking of the outlet wind and humidity of the constant temperature and humidity air supply device, and large fluctuations in the humidity control process; the problems of long response time and low control accuracy of the outlet air temperature control

Method used

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  • A constant temperature and humidity air supply device control system for pharmaceutical equipment
  • A constant temperature and humidity air supply device control system for pharmaceutical equipment
  • A constant temperature and humidity air supply device control system for pharmaceutical equipment

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Embodiment Construction

[0061] During the implementation of the present invention, the wind source (i.e. inlet wind) of the constant temperature and humidity air supply device is natural wind, and the output (i.e. outlet air) is constant temperature and humidity wind, which is supplied to equipment such as pharmaceutical fluidized beds. The constant temperature and humidity air supply device is composed of a rotary dehumidifier, a cabinet and pipelines, among which the cabinet is a two-layer structure. The lower layer of the cabinet is from left to right according to the wind flow direction, respectively, the air inlet, the inlet air temperature and humidity sensor, the pressure difference sensor, the filter, the front surface cooler, and the front surface cooling temperature and humidity sensor; the upper layer of the cabinet is from the right according to the wind flow direction. To the left are the rear surface cooler, rear surface cooling temperature sensor, rear heater, humidifier, air supply fan...

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Abstract

The invention provides a constant temperature and humidity air supply device control system for pharmaceutical equipment, which can improve the temperature and humidity control accuracy and improve the tracking performance of the system to the outlet air temperature and humidity control. The control system includes a control unit. Heater, low-power rear heater, air inlet temperature and humidity sensor (2), pressure difference sensor (3), front surface cold temperature and humidity sensor (6), rear surface cold temperature sensor (9), air outlet dew point and temperature and humidity sensor (13). In the present invention, the control amount of the outlet air temperature control loop is applied to the high-power post-heater and the low-power post-heater through a split-range control algorithm, thereby improving the temperature control accuracy of the outlet air and speeding up the response time of temperature control; the existing humidity The open-loop control is changed to closed-loop control, combined with the control effect of the regenerative heater on the humidity, the control accuracy of the humidity is jointly improved, and the tracking performance of the system for the control of the outlet wind and humidity is improved.

Description

technical field [0001] The invention belongs to the field of pharmaceutical equipment, in particular to a control system for a constant temperature and humidity air supply device in the pharmaceutical equipment. Background technique [0002] Fluidized bed is one of the widely used pharmaceutical equipment, and it is also one of the important components of pharmaceutical continuous manufacturing and intelligent manufacturing production lines. It is generally used for drying, granulating and pelletizing, etc. The pharmaceutical quality of the fluidized bed is not only related to the formulation, but also related to many factors, among which temperature and humidity are one of the important influencing factors. The temperature of the material is high, and the solvent evaporates quickly, which reduces the wetting and penetration ability of the binder to the powder. It has been volatilized before, resulting in more fine powder in the granules, and affecting the uniformity of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B3/084F26B21/08F26B21/10
CPCF26B3/084F26B21/08F26B21/10
Inventor 胡文金雷笪石胜兵刘遥陈永康宋乐鹏任建兵朱勇黄金盆梁显雯李晓羽
Owner 重庆力为康智能装备有限公司
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