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Common knowledge of heat-conducting oil pump and selection of sealing structure

Heat-conducting oil pump, also known as high-temperature centrifugal pump, can be divided into RY heat-conducting oil pump, BRY type air-cooled heat pump, RY air-cooled high-temperature centrifugal pump and AY single-stage centrifugal oil pump. The temperature of the conveying medium is minus 45-420 degrees, the maximum flow rate can reach 600m3/h, and the lift is 30-330 meters. The raw materials are cast iron, cast steel, stainless steel and so on.When transporting medium with high temperature, it is necessary to cool down. There are three common cooling methods: air cooling, electric fan cooling and water cooling, which are selected according to different operating temperatures of pumps, and electric fan cooling is especially suitable for areas with water shortage or poor water quality.RY heat-conducting oil pump This pump is reasonable in structure, excellent in function and reliable in operation. It is suitable for transporting high-temperature liquid without solid particles. Its corrosion resistance and operating temperature depend on the information of the primary parts touching the medium. RY air-cooled heat-conducting oil pump.Applicable scale of heat conduction oil pump.1. Petroleum and chemical industries.2. Oil industry.3. Synthetic fiber industry.4. Textile, printing and dyeing workers, truck oil pump industry.5. Plastics and rubber industry.6. Paper industry.7. Wood industry.8. Construction industry.In addition, the heat-conducting oil pump is also widely used in machinery industry, food industry, pharmaceutical production, oil supply circulation system of hot oil furnace and hot oil heating circulation system, and its functional scope (according to the planned point).1. Cooling water is used to cool the shaft seal cavity, bearing or pump bracket according to the temperature and application requirements. The recommended water quantity for each pipeline is 0.3-0.7m3/h, and the pressure is 0.2-0.3MPa2. Seal flushing is based on the different working conditions such as the medium conveyed by the pump and its temperature and pressure. The sealing fluid volume of each pump chamber is as follows, which can be supplied internally or externally.The sealing structures selected for centrifugal pump are:1. Single-end seal: write-in flushing is used. The flushing fluid is vacuum wax oil at about 100℃, and the pressure is 0.05~0.15Mpa higher than that in the sealed cavity. Hot water (soft water) is used outside the gland for quenching, and the cab oil pump can usually be used for one cycle (ten months).2. Metal bellows mechanical seal: it is compact in structure and easy to install. Under the condition of the same auxiliary system, its service life is 2~3 times that of ordinary seal.3. Double-face mechanical seal: the service life is 1.5~2 times longer than that of single face by circular flushing and external cooling.4. The conflict pair is hard to hard (YG6/YG8, SiC/SiC, etc.), which has excellent effect on medium with high viscosity, few solid particles or medium with crystallization.1. The domestic centrifugal pump is equipped with a cooling water jacket around the sealed cavity and cooled by cold water, which can reduce the temperature of the sealed cavity to 200~250℃.2. For single-end seal, write-in flushing is used, clean wax oil is introduced from the outside at 100℃ (diesel oil is usually not needed, because diesel oil is a finished product), which not only reduces the temperature, but also improves the working environment, which is an effective method.3. Chilled water is used outside the gland, which can not only reduce the temperature, but also prevent the sewer pipe from blocking.The company specializes in producing all kinds of truck accessories, mainly including cab lift oil pump, cab lift oil cylinder, forklift tilt oil cylinder and steering oil cylinder. At present, the company is dominated by European truck accessories, such as VLVO Volvo truck, BENZ truck, SCANIA Caina truck, Manman truck, RENAULT Renault truck, IVECO Iveco truck, DAF Duff truck and other http://www.hualongjx.cn/.

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