Solution of temperature and humidity monitoring system for pharmaceutical factory
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The temperature and humidity control of the air-conditioning system in the pharmaceutical workshop still adopts manual adjustment methods. It is completely dependent on human experience. The randomness makes the temperature/humidity control performance of the entire workshop unstable and fluctuating. At the same time, it cannot be real-time, accurate, Quickly display and transmit humidity information. Therefore, it is very necessary to realize the intelligent control of temperature and humidity in the pharmaceutical workshop.
Jiu Chunjian has developed a system suitable for temperature and humidity control in pharmaceutical factories in accordance with the national “Pharmaceutical Manufacturing Quality Management Regulations”. Through the control of temperature and humidity sensor measurers and controllers, real-time monitoring and automatic control of temperature/humidity in the production workshop are realized. , And improve the operating efficiency of the air-conditioning system, reduce the energy consumed by the air-conditioning system, and achieve high efficiency, environmental protection, and energy saving. This is advocated and encouraged by the country, and it is also in line with the requirements of the times.
Introduction of Temperature and Humidity Monitoring System for Pharmaceutical Factory
Normally, the temperature and humidity setting value of the indoor environment in winter is the allowable lower limit, summer is the allowable upper limit, and in spring and autumn it fluctuates within the allowable range. According to the main technical indicators provided by this design, 1,000 square meters of production workshop.
The temperature and humidity of the workshop are basically controlled at 22 degrees in summer, 60% humidity, and 18 degrees in winter.
Whether the temperature and humidity of the air in the workshop meet the production requirements and to determine the reference value for the control and adjustment of the air conditioning unit, the air parameters of the solid workshop need to be tested. Since most of the production processes in the solid workshop require high air cleanliness, in order to avoid the impact of serious dust production processes on other processes, the solid workshop is divided into 47 independent workshops, and each workshop is relatively closed. There is less air circulation.Among them, there are 27 rooms that need temperature and humidity adjustment. According to the size of the area, 1-3 temperature and humidity sensors are placed in each of these rooms. A total of 40 temperature and humidity sensors need to be placed in the entire workshop. See the table for the specific layout
Temperature and humidity sensor
JCJ175 temperature and humidity sensor: high-performance sensor imported from Switzerland Shengshirui
1. Power supply: 24VDC±10%
2. Temperature measurement range: -40-120℃ (other ranges are optional)
3. Humidity measurement range: 0-100%
4. Temperature measurement accuracy: ±0.3 ℃ (@25℃)
5. Accuracy of humidity measurement: ≤±3% (@25℃,10%-90%RH)
6. Display mode: LCD display, with backlight, accuracy can be calibrated
7. Control mode: alarm value and alarm return difference can be set
8. Communication mode: standard modbus-rtu protocol, which is convenient for network communication with various devices and has strong versatility.
System software function
1. System software function: Real-time monitoring of temperature and humidity in the monitored area, data flashing voice alarm, SMS alarm, telephone dialing alarm, remote automatic control (such as the start and stop of air conditioners, humidifiers, dehumidifiers, fans, etc.) through the monitoring software Control), real-time curve, historical curve, data report, data storage, printing, data transfer to TXT, EXCEL, etc.
2. System hardware functions: On-site LCD temperature and humidity measurement value display with backlight, on-site sound and light alarm, air conditioning, humidification/dehumidifier, fan control, and other functions are customized as needed. The operation of the system adopts the current mainstream configuration industrial computer, and the system supports the operating system from win98 to the latest win7. The compatibility is very good, and it can run smoothly under different configurations and operating systems.
3. Support a variety of networking methods: the system supports various current communication methods such as 485 bus, Ethernet, GPRS wireless network, and free-band wireless network. One or more networking methods can be selected for different sites to achieve flexible networking, Facilitate networking and realize the optimization, simplicity and practicality of the system architecture.
4. Abundant user management functions: According to different user operating permissions, different management permissions can be set to realize the software operation management of partition, classification, and permissions. High-privileged users can view various parameters in different areas and modify related parameters , People with lower authority can only view the data in the designated area and modify the parameter settings.
5. Standard and vivid software interface: The system is developed with a configuration software platform. It has the characteristics of rich functions, stable performance, vivid and beautiful interface. Electronic maps and monitoring point distribution maps can be drawn as needed to achieve accurate monitoring positions and monitoring. The effect of the object is clear at a glance, to ensure that when an alarm occurs, the location of the alarm can be accurately located at the fastest speed, so as to make effective treatment in time.
6. Convenient system upgrade, system expansion, and maintenance: Modular management facilitates software upgrade, system expansion and daily maintenance.
7. The system provides a docking interface (Open Database Interconnection Interface (ODBC)) with other system platforms to easily realize data interaction with other systems and realize monitoring information sharing.
8. LED electronic screen or large-area liquid crystal display can be selected as required, which can be placed in the monitoring center or other locations to facilitate the viewing of temperature and humidity data or use it as a public information board.
9. The system is divided into a stand-alone version and a network version from the network access method. The stand-alone software does not support network access, and only allows monitoring and management of temperature and humidity data on the computer running the monitoring system. The stand-alone version is suitable for relatively independent areas Sexual monitoring; the online version supports the viewing and management of temperature and humidity data through the internal network or a remote computer on the Internet. The online version is suitable for multi-regional, remote monitoring and management applications that require decentralized and centralized supervision.
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