BD60 vehicle fire pump use and maintenance 1, the main specifications and technical parameters (1) centrifugal pump Model BD60 type single-stage centrifugal pump rated outlet pressure ³ 1.0MPa rated flow 60L / s rated speed 3000r / min inlet diameter 2 × f150mm water Diameter 3 × f100mm Maximum water absorption depth 7m (2) Vane suction pump maximum suction capacity ³85kPa Diversion time £ 45s (3) fire pump assembly sealing vacuum degree of 85kPa, the vacuum drop speed of not more than 2.6kPa / min ( 4) The total mass of the quality of 220kg (5) rotation (from the pump inlet) clockwise 2, the main structure of the product description and system description The fire pump from the water valve, water pump, bearing box, vane pumps, electromagnetic clutch, Water diversion pipe automatic switch, water diversion pipeline. See Figure (A) (1) water pump: the pump body 1, 2 impeller, pump cover 4, the pump shaft 6 and other major components, see Figure (b). Pump shaft 6 made of 40Cr steel, the surface nitrocarburized. To improve the wear resistance and corrosion resistance, before and after the two impeller leak ring are made of cast manganese brass, impeller 2 made of cast aluminum brass, has good wear resistance and corrosion resistance. Water flows through the pump cover 4 inlet into the impeller 2 by the impeller energized by the pump body 1 on the exit. (2) vane-type diversion pump, the rotor 4, the vane 6, the pump housing 5, gear 2 and other major components, the pump housing 5 axis and rotor 4 axis eccentric, when the rotor rotation, the rotor slot slip The disc 6 is thrown out under the action of centrifugal force to come into contact with the inner wall of the pump casing 5 so that an independent cavity (with the help of lubricating oil) is created between the two slides. As the rotor rotates, the volume of each independent space constantly changes , Forming a suction and exhaust, the fire pump cavity and low pressure pipeline to form a vacuum, so as to achieve the purpose of water, see Figure (c) below. The slider 6 is made of nylon material, the rotor 4 and the housing 5 are made of copper alloy, which has the characteristics of abrasion resistance and corrosion resistance. (3) bearing box (Figure 4) and vane pumps, electromagnetic clutch, pressure relay (Figure V), the installation of the relationship shown in Figure (A). How it works: Figure (d) shows the pump vane pump work before the state. Turn on the power (24V), the current through the pressure relay Figure (V) (for power) brush, the electromagnetic clutch 23 generates a magnetic field coil so that the tooth-shaped friction plate together, the electromagnetic clutch with the pump shaft 6 together , Toggle the driving gear 19 in turn transmits the power to the driven gear 2 in the vane pump 3 (FIG. 3), so that the rotor 4 drives the vane 6 to rotate together to perform exhaust and water diversion. When the water is completed, the pump is working properly, the pressure water through the relay Figure (5) in the water pipe, the piston 7 by the water pressure up the movement, the micro-switch off, cut off the current, the electromagnetic clutch 23 to stop the suction, Open, so vane pumps
Henan liangjin tools co.,Ltd founded 1999, is a modern chemical measuring tool manufacturer integrating scientific research, development, production and export sales.
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