The flow switch is mainly installed on-line or plug-in in medium pipelines such as water, gas and oil to monitor the water flow in the water system. When the water flow is higher or lower than a certain set point, the output alarm signal is triggered and transmitted to the unit, and the system can make corresponding indication actions after obtaining the signal. Avoid or reduce host "dry burn".
How the flow switch worksThe working principle of the water flow switch When there is water flowing in the water flow switch, and the water flow rate is ≥1.0 liters per minute, the magnetic core in the water flow switch is pushed by the water flow to produce displacement, and the magnetic core displacement drives the magnetic source to produce a magnetic control effect, so that the water flow switch outputs "on". "Signal. The automatic selection of the flow switch is included in the quick and easy selection. The signal is input to the equipment control system, and the control system realizes the control function. When the water flow is less than the starting flow, the water flow switch outputs a "off" signal. The control system produces the opposite control action to the above. In other words: water flow switch When the flow rate of water in the pipeline is greater than 1 liter per minute, the magnetic core is displaced under the action of water flow and drives the magnetic source to produce a magnetic control effect, so that the sensor outputs a "1" switch signal, which is input To the equipment control system, the purpose of water flow control is realized after power expansion. When the water flow in the pipeline is less than 1 liter per minute, the magnetic core drives the magnetic source to return under the thrust of the return spring, so that the sensor outputs a "0" switch signal and stops the system. The flow switch has the advantages of high sensitivity and strong durability.
The working principle of thermal flow switchThe thermal flow switch is designed using the principle of temperature change of the probe head. The probe has a built-in heat sensor and thermal sensor, and is in contact with the medium. During measurement, the heat sensor emits constant heat. When there is no medium flowing in the pipe, the heat received by the heat sensor is a constant value. When there is a medium flowing, the heat received by the heat sensor will vary with the flow rate of the medium. The thermal sensor converts the temperature difference signal into an electrical signal, and then converts it into a corresponding contact signal or an analog signal through the circuit.
The principle of thermal diffusion flow switch, thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions, its typical principle is that when two sensing elements are placed in the fluid, one of them is heated, and the other is at the induction process temperature. The temperature difference between the two sensing elements is related to the process flow rate and the properties of the process medium. The temperature difference between the two sensing elements is greatest at no flow, but as the flow increases, the heated sensing element cools and the temperature difference decreases. The fluid flow rate directly affects the degree of thermal diffusion.
Copper Corrugation Tube
The inner thread copper tube is used in air conditioning products, which can increase the heat exchange area of copper tube and increase the heat exchange capacity of air conditioning heat exchange.
However, this kind of tube is used in the fluorine machine heat exchange inside, can not be used in the fan coil, air conditioning box and other products of the water heat exchange inside.
Freezer Copper Tube,Copper Corrugation Tube,Refrigerator Copper Tube,Air Conditioner Copper Tube
FOSHAN SHUNDE JUNSHENG ELECTRICAL APPLIANCES CO.,LTD. , https://www.junshengcondenser.com