Effect of shaft seal of Shijiazhuang slurry pump

The shaft seal is to prevent the leakage of high-pressure liquid from the slurry pump and prevent air from entering the pump body. Although the main position of the seal in the pump is small, the normal operation of the pump is closely related to the quality of the seal. If the shaft seal is not properly selected, it needs frequent maintenance during work, and the delivered liquid will leak a lot and pollute the pump. Fire, explosion and poisoning may also be caused by the leakage of flammable, explosive and toxic liquids. It is hard to imagine that proper selection of shaft seal can ensure the operation of slurry pump. Type of shaft seal of slurry pump: there are three main types of shaft seals of slurry pump: packing seal, packing and auxiliary impeller seal and mechanical seal. 1. The mechanical seal is designed according to the principle of zero leakage, which can avoid pollution and maintenance cost in actual use. However, due to the high frequency of each replacement, the current mechanical seal is gradually improving in technology. Adapt to different industrial and mining conditions. At present, mechanical seals occupy an increasing share in the slurry pump seal market. All kinds of newly designed mechanical seals are reliable, but they are quite expensive. Another mechanical seal is split seal, which can replace slurry pump without disassembly. There are also new structures such as hot fluid dynamic pressure seal, standby seal and asymmetric metal bellows seal. 2. Packing and auxiliary impeller sealing are common sealing methods and reliable sealing methods. The floor drain of this design is designed with 60 drops per minute. It must have shaft seal water to run. Since the raw materials of fillers are relatively cheap and easy to replace, most manufacturers prefer to use this type. 3. Packaging sealing is the basic packaging method. This method is generally not used for single pump operation, but it is widely used in series pumps. The position of the auxiliary impeller is replaced by a positioning sleeve, which increases the space in the pump, can accept more pressure and increases the whole pump. Hebei Yingdike Pump Industry Group Co., Ltd. is a professional manufacturer of slurry pumps, submersible slurry pumps and sand suction pumps. It is an enterprise integrating research, development and production in Hebei Province.