Interpretation of the structure of horizontal slurry pump, horizontal slurry pump classification

We are accustomed to based on the pump shaft and horizontal position, the slurry pump is divided into horizontal slurry pump and vertical slurry pump. Thus, the biggest difference between the slurry pump is divided into horizontal slurry pump is the structural differences. Today, small series for everyone to interpret the structure of the slurry pump and its classification. Interpretation of the structure of the horizontal slurry pump, the classification of horizontal slurry pump (A) The structure of the horizontal slurry pump below the pump head part, the shaft seal part and the transmission part, respectively, described the structural features (a) 1, AH, AHP, HP, M, H, HH type pump is a double pump shell structure, that is pump body with replaceable wear-resistant metal lining (including impeller, sheath, shield, etc.). Pump cover according to the working pressure of gray cast iron or ductile iron, vertical open, with bolts. The pump body has a mouth and bracket with bolts. Pump outlet can be rotated at eight angles to install. Front and rear impeller blades with back blades to reduce leakage and improve pump life. 2, AHR, L, MR pump is also a double pump shell structure, the pump cover with replaceable wear-resistant corrosion-resistant rubber lining. Pump body, pump cover and AH, L, M pump body pump cover common, the transmission part and the installation form and AH, L, M-type pump the same. 3, D, G-type pump, single-pump shell structure (that is, without lining). Pump body, pump cover, impeller are made of wear-resistant metal. Pump body, pump cover connection with a special step up structure, pump outlet direction can be arbitrary rotation, easy installation and removal. Chrome-type pump port are horizontal, from the direction of transmission to see pump clockwise rotation. (B) Shaft seal There are two types of shaft seal, Vice impeller shaft seal and packing shaft seal. 1, Vice impeller shaft seal: When the positive pressure of the pump inlet is not more than 10% of the pump outlet pressure, the single-stage pump or the first-stage pump connected in series can adopt the auxiliary impeller shaft seal, Shaft seal water, do not dilute the pulp, sealing effect and so on. 2, packing shaft seal: packing shaft seal structure is simple, easy maintenance, but the need to use shaft seal water, not suitable for use with the Deputy impeller shaft seal packing seal can be used. 3, the transmission part of a variety of horizontal slurry pumps are used in the same series of transmission parts, including brackets and bearing components, the pump shaft diameter, good rigidity, short cantilever, in harsh conditions will not be bent and vibration, bearings According to the different power transmission options heavy single or double row tapered roller bearings and cylindrical roller bearings, can withstand the maximum axial and radial pump load, bearing grease lubrication, both ends of the bearing body seal cover, labyrinth and Labyrinth ring, can effectively prevent the pulp and other contaminants from entering the bearings, to ensure the safe operation of bearings, with a high life expectancy. (B) of the classification of horizontal slurry pump 1, divided by the number of impeller: single-stage slurry pump and multi-stage slurry pump 2, the way from the impeller into the water: single suction slurry pump and double suction slurry pump 3, from the pump shell structure: the level of open and vertical combination (Editor: Huang Nengwen QQ :)