Working principle of compressed air flow meter

The basic principle of the compressed air flow meter is the Carmen vortex principle, that is, "the vortex separation frequency of the vortex is proportional to the flow velocity." The diameter of the transmitter body is basically the same as the nominal diameter of the instrument. The A column of ap... read more

Calculation of compressed air flow meter

Compressed air flow meter is a sensor used to calculate the intake air of the engine. In the electronically controlled fuel injection device of the automobile, the air flow sensor is one of the important components that determines the control accuracy of the system. The air flow signal and the engin... read more

Use a fire extinguisher to optimistic about the pressure gauge

If the fire extinguisher is not properly maintained or is not used for a long time, problems such as rust and abnormal pressure may occur. Therefore, pay attention to the pressure gauge above the bottle mouth when using. If the pointer on the watch is in the green area, the internal pressure of the ... read more

Insufficient pressure on fire extinguisher

Since the Spring Festival, the Changsha Public Security Fire Brigade organized the Spring Festival Special Inspection Team to conduct in-depth fire safety inspections in Changsha's major bus and train stations. Yesterday, the inspection team found in the entrance and exit of the East Bus Station, th... read more

Dry powder fire extinguisher correct use method and inspection precautions

Portable dry powder fire extinguishers are mainly used to fight solid material fire (Class A), flammable liquid fire (Class B), flammable gas fire (Class C) and general electrical fires. Because of its flexible operation and wide application range, fire extinguishers are used in all corners of socie... read more