For the design, production and on-site installation of the solar water heating system control cabinet, special attention should be paid to the following issues:
1) PLC control module programming is a more important link. It is necessary to control the outside world that has a greater impact on the operation of the solar water heating system . Interference factors are taken into consideration in functional design to improve the operational stability of the control system. Especially when there is a frequency converter nearby, more attention should be paid to improving the anti-interference ability of control cabinet .
2) The wiring inside the control cabinet must be carried out in accordance with relevant electrical installation specifications. Strong current wiring and weak current wiring must be routed separately. Weak current lines and strong current lines cannot be run in the same conduit.
3) Weak current lines must use shielded wire , and the shielded wire must be designed to be grounded. Electrical experts from some design units suggest that the weak-current line should be grounded with a shielded wire and a metal sleeve grounded for double protection, which can completely solve the problem of electromagnetic interference with .
The problem of anti-electromagnetic interference of control cabinets is easily ignored by those unfamiliar with professional solar water heating system construction and installation manufacturers and control cabinet manufacturers. It is hoped that it will attract special attention and attention from people involved in design, production, construction and installation.
It is still a cliché. When purchasing system control cabinets, solar water heating system construction and installation units must choose regular manufacturers. They must not be greedy for temporary gains, choose unprofessional manufacturers, or even use small production workshops without any production qualifications. The products are pieced together and assembled. In order to reduce the design and production costs of the control cabinet, we cannot remove the protective functions that must be designed to ensure the safe operation of the solar water heating system. In that case, it will not only bring great safety hazards to the operation of the solar water heating system, even lead to safety accidents, but also bring greater economic losses to all parties.
Huilifeng Intelligent Control Technology Solar Water Heater System Control Cabinet Introduction
Hot Water System Control Cabinet Main Function Introduction
Fixed temperature return water: configure return water (thermal cycle), there is no cold water in the pipe, and hot water can be quickly produced when the user uses it .
Intelligent water replenishment: intelligent water replenishment based on water temperature and water level, ensuring the water temperature during the water replenishment process, so that the entire system can continuously supply hot water. In the event of equipment failure, early warning information will be automatically sent to management personnel through WeChat, SMS, email, etc.
Temperature difference cycle: In the solar hot water system, it plays the protective functions of explosion-proof pipe protection, water tank high temperature protection, low temperature protection, low water level protection and other protective functions.
water tank heating: supports a variety of heat transfer methods: air energy + electric auxiliary heating; solar energy + electric auxiliary heating; air energy + solar energy + electric auxiliary heating; pure electric heating.
Introduction to the solar water heating system control module of Huilifeng Intelligent Control Technology
Compared with the traditional control method, one module can be used for 7. The main functions of the module include automatic water replenishment, automatic water return, automatic electric auxiliary heating, antifreeze heating, time control;
automatic water replenishment: triple control of time, temperature and water level;
automatic water return: timing, temperature control;
electric auxiliary heat automatic heating: timing, temperature control, and is equipped with the anti-dry boil protection function of electric auxiliary heat. When the water level is lower than electric auxiliary heat , the electric auxiliary heat stops working;
anti-freeze heating: temperature control, heating and anti-freeze function, can be used for anti-freeze heating in winter;
Huilifeng Intelligent Control Technology Solar Hot Water Remote Control Management System introduction
Huilifeng Intelligent Control Technology Co., Ltd. has developed a remote control management system that is very suitable for use in hot water engineering projects. This remote control management system can achieve 24-hour real-time monitoring, and use remote Internet of Things technology to automatically and promptly send fault information to managers and maintenance personnel in a variety of ways, so that faults can be discovered and eliminated in time to ensure the stability of the hot water system. Operation ensures the normal supply of hot water. It truly solves the trouble caused by interruption of hot water supply due to malfunction of the hot water system.
The functional design of the control cabinet supporting the solar water heating system is a relatively special professional technology. Whether the function is well designed and whether the designed functions are complete can directly affect the normal operation of the solar water heating system. Be sure to choose a formal one. Cooperation with manufacturers.
