China CNG Cylinder manufacturers Contract Job

China CNG Cylinder manufacturers Special Gas Cylinders For Liquefied Natural Gas Vehicles 聽 Vehicle air cylinder Installation methods that reduce the strength and stiffness of the gas cylinder, such as welding and patching, shall not be used. 聽 Gas cylinders shall be installed reasonably and orderly. After installation, the gas cylinder shall not exceed the outer contour edge of the vehicle, and the distance from the gas cylinder to the vehicle exhaust pipe shall not be less than 2000 mm. When the distance is less than 200 mm, a reliable thermal insulation device shall be set; The distance between the inlet valve of the gas cylinder and the maximum outer contour edge on both sides of the vehicle shall not be less than 2000mm. 聽 If the longitudinal installation mode is adopted, that is, the axis of the gas cylinder is parallel to the longitudinal axis of the vehicle, the end of the gas cylinder with valves and instruments shall face the rear of the vehicle. 聽 The gas cylinder shall be firmly installed. A flexible anti-skid gasket with a thickness of no less than 2mm shall be placed between the gas cylinder and the fixed seat. The fastening bolt shall have a locking device whose tightening torque meets the design requirements. After the gas cylinder is installed and fastened, it shall be able to withstand the force of 8 times of the total weight of the full loaded gas cylinder in the six directions of up, down, left, right, front and back. There shall be no relative displacement between the gas cylinder and the fixed seat. The maximum relative displacement of the fixed point between the gas cylinder and the fixed seat shall not be greater than 13 mm, and the fasteners shall not be loose. 聽 The air cylinder shall not be installed in the cab or the passenger compartment. 聽 Pipeline and connector The pipes shall be arranged orderly and reasonably, without collision or friction with adjacent parts. The distance between pipe fixing clips shall not exceed 600mm. If the pipe contacts with adjacent parts or passes through the orifice plate, it shall be protected by a low tenderness resistant gasket. The "O" shape of the rigid connecting pipe must be set between the two parts. The radius of curvature of the center line of the "S" or "U" shape pipe shall not be less than 5 times the outer diameter of the pipe, which can eliminate thermal expansion, cold contraction and vibration. 聽 The distance between pipelines and joints and engine exhaust pipe shall not be less than 75mm. When the distance is 75mm~200mm, reliable and fixed thermal insulation device shall be set; The distance from the transmission shaft shall not be less than 75mm. 聽 Flexible hoses, such as special stainless steel metal hoses, should be used for pipelines between tractors and trailers. The flexible hose shall be fixed on the base part of the vehicle with elastic fixing clips, with the spacing of fixing clips not greater than 300mm, and shall be fixed before and after each bending. The distance between the hose and the engine exhaust pipe shall not be less than 100mm. When the distance is 100mm~200mm, a reliable and fixed thermal insulation device shall be set. 聽 The distance between the cryogenic pipeline and the automotive electrical circuit, water pipe, gas pipe, oil pipe and other parts that are not resistant to low temperature shall not be less than 15 mm. Author: Siming Teke https://www.bilibili.com/read/cv19240478/ 聽China CNG Cylinder manufacturers website:http://www.cnhs.cc/cng-cylinder/