The principle of accumulator nitrogen charging device

When the nitrogen charging pressure of the accumulator is required to be more than 13MPa, it cannot be completed directly with the nitrogen bottle. The nitrogen charging device of the nitrogen charging trolley uses a pneumatic booster pump to easily complete the nitrogen charging of the accumulator. The device is simple to operate, easy to maintain, and ideal for accumulator nitrogen charging. The nitrogen charging trolley related to the field of gas charging and boosting device is aimed at directly charging the accumulator or high-pressure container with nitrogen for the nitrogen cylinder. If the pressure of the nitrogen to be charged is higher than the pressure of the nitrogen cylinder, the charging cannot be carried out directly, and A nitrogen filling device designed to improve nitrogen utilization. It is composed of hydraulic pressure, electric circuit, gas circuit, nitrogen pressure booster and so on. The main point of the design is that the trolley is equipped with a nitrogen booster device, and there are ejector rods in the end caps at both ends of the cylinder body, and limit switches are arranged at both ends of the oil cavity and the air cavity. The piston pushes the electromagnetic reversing valve of the limit switch through the ejector rod to send a reversing signal, the hydraulic system pressurizes, makes the piston reciprocate continuously, pressurizes the gas and enters the pressure vessel, and automatically stops when the required pressure is reached. If it is connected to the air system of the pressure vessel, it can automatically inflate and maintain the pressure. It is suitable for Piston Accumulator applications in metallurgy, electric power and other industries where high-pressure gas needs to be filled into high-pressure containers. Not only can it be used for nitrogen charging of accumulators, but also can be used for nitrogen gas charging of nitrogen springs. It is suitable for charging nitrogen gas for accumulators, gas springs, pressure storage devices, high-voltage switches, electrical products, injection molds, high-pressure containers, fire-fighting equipment, etc. that need to be filled with nitrogen.
An accumulator, as the name suggests, is a device that stores energy. Usually a sphere or cylinder that stores air pressure. There is an airbag inside, and the airbag needs to be filled with nitrogen gas. The filling pressure is called the preparatory pressure, and it is used to do work quickly. Additional inflation is then required inside the tube body. When a component needs to be pushed quickly, the gas inside the tank can be discharged from the tank at a very fast speed by means of the sum of the capsule pressure and the internal pressure of the tank. Such accumulators are usually used in glass tempering furnaces, switches for power devices, and clamping of die-casting molds. The specific inflation pressure of the capsule and the inflation pressure of the tank are determined according to the needs of the site. Another type of accumulator is that after the capsule is inflated, it only acts as a push rod, which is generally used for the displacement power of special safety devices.
Ningbo Chaori Hydraulic Co .,Ltd. is located in National AAAAA scenic resort Xikou town,Fenghua, Ningbo.The company covers an area of 18000 square meters, and has been equipped with perfect manufacturing machines and detecting instruments. lt passed the lSO9001-2000 certification in 2000,and had the important certificates and licenses, including the Special Equipment Designing and Manufacture License issued by General Administration of Quality Supervision ,Inspection and Quarantine, of China，ASME manufacture certificate of pressure vessel ,and EU CE certificate. The company took part in the establishment of accumulator type national standard.