[Run Feng] performance requirements of main equipment for gas pressure regulating and metering cabinet
1 filter requirements: particle size I>20m particles can be filtered, filtration efficiency I>98%. It should be able to meet the requirements of natural gas flow and pressure drop. The structure form adopts the straight through type. The filter assembly should be resistant to medium corrosion, erosion resistance and easy cleaning. Install the pressure gauge before and after the filter. The nominal pressure of the filter is 1.6MPa.
2 voltage regulator requirements: the relative error of export pressure is within 5%. It must be self-motivated, sensitive and responsive under the design of technical parameters. It can meet the requirements of output flow and output pressure. It is not allowed to be wheezing, unstable pressure and so on. It is easy to install and maintain online. The nominal pressure of the voltage regulator is 1.6MPa.
3 cut off valve requirements: when the outlet pressure is 0.1MPa, the overpressure cut-off pressure is 0.14MPa, the action accuracy is less than or equal to 5%, and the reaction time is less than 1S. Only by natural gas to drive and control, with overpressure cutting function, can be integrated with the voltage regulator configuration, also can be divided into body configuration, and requires sensitive, reliable, cut off in time. When the valve moves, it can not affect the other automatic cutting devices in operation or in standby state. After the device is cut off, it must be opened manually. The nominal pressure of the shut-off valve is 1.6MPa.
4 safety valve requirements: when the outlet pressure is 0.1MPa, the releasing pressure is 0.13MPa. It should meet the requirement of overpressure release, that is, when pressure rises to a certain value after pressure regulation, the valve should be automatically opened and scattered in time. When the pressure drops to a certain value in the process of dispersion, the valve mouth can be reset and closed in time, and the close close and no leakage is ensured, and the action is sensitive and reliable. The requirements of on-line detection should be met. The nominal pressure of the safety valve is 1.6MPa.
5 flow meter requires: temperature and pressure compensation function, meet the flow measurement and explosion-proof requirements, the measurement precision is 1.5, the nominal pressure of the flowmeter is 1.6MPa
6 other valves: the inlet and outlet valves of the box are made of natural gas valves, and the nominal pressure of the valves is 1.6MPa. Process piping: seamless steel pipe (GB / T8163-2008) (seamless steel pipe for conveying fluid) shall be selected (galvanized steel pipe after safety valve). The connections between the pipelines are all welded or flanged. The elbow, three links and other fittings should meet the requirements of GB / Tl2459 - 2005 (steel butt welded seamless fittings). Manifold: the inlet and outlet of the pressure regulating box are set vertically, and the upper end of the manifold is welded and the lower end is a flange blind plate. Pipe design pressure 1.6MPa. An important user's pressure regulating and measuring box is provided with a temperature and pressure remote transmitting signal interface.
Contact mode: Tan Gong 180-0338-3735 can add WeChat to QQ:2894242950 at any time. Our factory can provide gas pressure regulation scheme, gas surge tank, gas surge tank, landing type pressure regulator, biogas pressure relief valve, special pressure regulating cabinet for gas wall hanging furnace, filter, stinker, kiln pressure regulating and setting, furnace gas pressure relief valve, gas pressure regulating valve group, boiler combustion The gas pressure regulating box, the small flow gas regulator, the gas cell inlet pressure regulating equipment, the LNG regulating pressure prying, the domestic gas water heater pressure reducing valve, and the domestic gas cooker pressure reducing valve.
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