Application of modern water-saving irrigation solenoid valves
With the progress and development of science and technology, the speed of social and economic development continues to increase. In the agricultural field, farmland irrigation has gradually changed from labor-intensive irrigation to automated irrigation. In urban gardens, it saves water resources and reduces the labor intensity of maintenance workers. Has become the low-cost vane pursued in the industry. According to the working principle of the irrigation solenoid valve. The use of irrigation solenoid valves plays an important role in water-saving irrigation and semi-intelligent operation.
What is an irrigation solenoid valves?
The application of an irrigation solenoid valve in farmland irrigation is equivalent to a control valve in a pipeline. The principle of irrigation is to collect soil moisture data through soil moisture sensors. Then transfer it to the irrigation controller. The host automatically analyzes the collected data. If the humidity is not enough, it will open the solenoid valve to irrigate the crops. After reaching the humidity, the power-off valve is automatically closed to effectively avoid water waste and excessive irrigation.
Principle of Irrigation Solenoid Valve:
Irrigation solenoid valves can be divided into two types: DC solenoid valves and pulse solenoid valves. The solenoid valve is mainly composed of a valve body, a valve cover, a diaphragm, an electromagnetic package and a pressure regulating device. The valve body has a small passage called an introduction hole. It connects the upper and lower chambers of the diaphragm and the space at the bottom of the electromagnetic package. There are two types of solenoid valves: normally open and normally closed. Most of the solenoid valves used in the green sprinkler irrigation system are of the normally closed inlet type.
That is: the solenoid valve is closed when it is not working, and when the solenoid valve is working, the safety current passes through the solenoid package. The electromagnetic core moves under the action of electromagnetic induction, thereby opening the introduction hole. The opening of the introduction hole means that the pressure balance between the upper and lower chambers of the diaphragm is disrupted. The diaphragm opens the channel under the action of the upstream water pressure, and the valve opens. The valve body of the solenoid valve is generally made of engineering plastic, reinforced nylon or brass. The diaphragm is usually made of rubber material with good toughness. The spring is made of stainless steel. These materials have good chemical stability and mechanical properties.