High Pressure Diesel Fire Fighting Pump

Application:

XBC diesel engine fire pump set is mainly used for pressurization and water supply of fire system pipeline. It can also be applied to industrial and urban water supply and drainage, pressurized water supply of high-rise buildings, long-distance water supply, water supply of heating, bathroom, boiler cooling and heating water circulation pressurized air conditioning refrigeration system and equipment matching.

Main features:

1. The electric pump is the main fire pump, which can be started automatically according to the fire situation;

2. Equipped with pressure stabilizing pump to maintain constant pipe network pressure;

3. The diesel engine pump is a standby fire pump, which can be started automatically without power supply;

4. When the electric pump fails, the diesel pump starts.

Structure:

XBC diesel engine fire pump set is mainly composed of pump body (1), pump cover (2), impeller (3), shaft (4), sealing ring (5), shaft sleeve (8) and suspension bearing components (12) according to the standard requirements of GB6245-2006 fire pump.

The pump body and pump cover of XBC diesel engine pump are divided from the back of the impeller, that is, the commonly known rear door structure. The utility model has the advantages of convenient maintenance. During maintenance, the pump body, suction pipeline, discharge pipeline and motor are not moved, and the rotor parts can be withdrawn for maintenance only by removing (lengthening) the middle connecting piece of the coupling.

The pump housing (i.e. pump body and pump cover) constitutes the working chamber of the pump. Impeller, shaft and rolling bearing are the rotors of the pump. The suspension bearing component supports the rotor component of the pump, and the rolling bearing is subjected to the radial and axial forces of the pump.

In order to balance the axial force of the pump, seal rings are set at the front and rear of the impeller of most pumps, and balance holes are set on the rear cover plate of the impeller. Because the axial force of some pumps is small, seal rings and balance holes are not set at the back of the impeller.

The axial seal ring of the pump is composed of packing gland (9), packing ring (10) and packing (11) to prevent air inlet or large amount of water leakage. If the impeller of the pump is balanced, the cavity with soft packing is connected with the inlet of the impeller. If the liquid at the inlet of the impeller is in a vacuum state, it is easy to air along the surface of the shaft sleeve. Therefore, a packing ring is installed in the packing cavity, and the pressure water in the pump chamber is led to the packing ring through the small hole on the pump cover for sealing. If the impeller of the pump has no balance hole, there is no air leakage problem because the liquid pressure on the back of the impeller is greater than the atmospheric pressure, so the packing ring can not be installed.

In order to avoid shaft wear, a shaft sleeve is installed at the part where the shaft passes through the packing cavity. An O-ring is installed between the shaft sleeve and the shaft to prevent air inlet or water leakage along the mating surface.

The transmission mode of the pump is connected with the motor through an extended elastic coupling. The rotation direction of the pump is clockwise from the driving end.

The inlet and outlet flanges of the pump are designed according to the pressure of 1.6Mpa, and the pipeline matching is convenient.

Contact us:

Shirley She

Tel: 0086 312 6795175

Cell: 0086 139 3227 8621 (whatsApp)

Email: admin@deponpump.com

Web: www.deponpump.com