Gas Cylinder Pressure regulator Principle and Usage
The gas cylinder pressure regulator is an important device used to regulate the pressure of the gas cylinder, and is an important safety device for the pressurized gas cylinder for the measurement and control of gas gas. The gas cylinder pressure regulator can maintain the gas pressure in the gas cylinder at an appropriate value and make it convenient for the user to use the gas. This article mainly introduces the working principle and usage steps of the gas cylinder pressure regulator.
Working Principle of Gas Cylinder Pressure Regulator
The working principle of the gas cylinder pressure regulator is mainly due to the adjustment of the adjustment mechanism and exerting a regulating force on the regulating member. Since the pressure regulating valve is divided into a spring-type pressure-regulating valve, a diaphragm-type pressure-regulating valve, a pilot-type pressure-regulating valve and a hydraulic-type pressure-regulating valve, the working principle of these four types of pressure-regulating valves is different.
In spring-type pressure-regulating valve, the spring force acts on the pressure regulator, which provides a normal force to the regulating valve. When the downstream pressure changes, it will cause the spring-loaded valve to deviate from the original equilibrium position. The deviation of the spring-type pressure regulating valve is directly proportional to the pressure difference between the upstream and downstream of the pressure regulating valve.
For a diaphragm-type pressure regulating valve, the diaphragm-type pressure regulating valve consists of a regulator and a diaphragm. When the valve is closed, the pressure in the chamber pushing the diaphragm tends to be higher than the pressure in the chamber pushing the valve’s regulating spindle, so the regulating spindle is pressed against the valve seat, which ensures that no fluid leakage occurs. If the pressure in the chamber pressing on the diaphragm decreases, the regulating spindle will be pressed out from the valve seat, thus ensuring the normal operation of the diaphragm type pressure regulating valve.
The pilot type pressure regulating valve consists of a main valve body, a main valve and a regulating valve, which is controlled by a pilot poppet valve. The pilot poppet valve is at the same time connected to the upstream and downstream of the nozzle outlet to monitor the pressure difference and adjust the flow of the main valve body as needed.
Hydraulic pressure regulating valve is mainly used to adjust the control valve through the pressure difference of the outlets of the two pipes and the action of the valve. The adjustable pressure valve body is connected to the two outlets of the two pipes, and the valve member is usually a plug or a spool, which is driven by the power of the pressure difference between the two outlets.
Usage of Gas Cylinder Pressure Regulator
1. Installation
This product must be installed in a place where ventilation is good in order to effectively reduce gas leakage. Therefore, please install the gas cylinder pressure regulator in a place where direct sunlight and strong winds are avoided, but ventilation is good.
2. Positioning
When installing, make sure that the gas inlet and gas outlet of the gas cylinder pressure regulator can be reliably connected with the gas cylinder and the equipment respectively.
3. Connection
Before fluid connection, check the flow direction and pipeline joint to ensure that the pipeline connection is safe, firm and reliable.
《4. Turn on Gas Fluid》
Turn on the gas cylinder pressure regulators inlet, outlet and test outlet valves (if any). The test outlet valve can be used as a process parameter for gas fullness and gas inlet pressure.
5. Pressure Setting
(1) When the gas cylinder pressure regulator is set to the required pressure (usually only 0.5bar ), you can press the black button of the pressure controller on the side of the pressure adjusting mechanism. When the black button on the pressure adjusting mechanism is released, you can let go.
(2) After the pressure has been adjusted, adjust the valve core of the pressure regulating valve by rotating the handle of the valve core to the lower pressure side.
(3) After slowly closing the valve, pressurize the gas cylinder pressure regulator, slowly open the valve core and gradually open up to the normal working pressure.
6. Leakage Test
Pressurize the gas cylinder pressure regulator and check for leaks at inlet, outlet and test outlet ports (if any).
In conclusion, this article mainly introduces the working principle and usage of the gas cylinder pressure regulator. The gas cylinder pressure regulator is an important device for the measurement and control of gas gas, and its usage also requires certain attention. Therefore, when using the gas cylinder pressure regulator, users must follow the specified steps and pay attention to its specific usage.
