Control system of constant-temperature and constant-humidity air supply device for pharmaceutical equipment

A control system and air supply device technology, applied in lighting and heating equipment, drying gas arrangement, drying, etc., can solve the problems of low control precision, inability to track, fluctuation of humidity control process, etc., to improve control precision and tracking Performance, Effects of Fast Track Control

Active Publication Date: 2020-04-14
重庆力为康智能装备有限公司
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  • Abstract
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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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  • Control system of constant-temperature and constant-humidity air supply device for pharmaceutical equipment
  • Control system of constant-temperature and constant-humidity air supply device for pharmaceutical equipment
  • Control system of constant-temperature and constant-humidity air supply device 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 control system of a constant-temperature and constant-humidity air supply device for pharmaceutical equipment. With the control system of the invention adopted, temperature and humidity control precision can be improved; and the performance of the system in tracking outlet air temperature and humidity control is improved. The control system comprises a control unit, a high-power rear heater, a low-power rear heater, an incoming air temperature and humidity sensor (2), a differential pressure sensor (3), a front surface cold temperature and humidity sensor (6), a rear surface cold temperature sensor (9) and an outgoing air dew point and temperature and humidity sensor (13). According to the control system of the invention, the control quantity of an outlet air temperature control loop acts on the high-power rear heater and the low-power rear heater through a split-ranging control algorithm, so that the precision of temperature control over outlet air is improved, and the response time of the temperature control is shortened; existing humidity open-loop control is changed into closed-loop control, and the humidity control effect of a regeneration heater is realized, and therefore, humidity control precision is jointly improved, and the performance of the system in tracking outlet air humidity control 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 Applications(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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