zhangxiaosan
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pm | | Horizontal tangential fire pump (5th Jun 19 at 2:21am UTC) | Quote Reply | XBD-HY horizontal tangential fire pump adopts special hydraulic design and structural design according to GB6245-2006 National Standard for Fire Pump, which makes it more suitable for building fire water supply system selection than ordinary centrifugal water pump. The flow-pressure (Q~P) characteristic curve is smooth and no hump. All parts of friction parts due to rotation are manufactured with wear-resistant, corrosion-resistant and mesh-resistant materials, which have high reliability, high bearing capacity of pump body, strong anti-overload capacity and sensitive start-up. It is more suitable for the use of building fire water supply system and passed the inspection by the national fire product quality supervision and inspection agency.
Tangent fire pump set is developed by our company according to the special place used by fire pump. Its performance and technical conditions meet the requirements of the compulsory national standard of GB6245-2006 Fire Pump. The product has the characteristics of variable flow and constant pressure, that is, in the range of total flow, the head changes little. When the pump changes from zero flow rate to the required large flow rate range, its head changes within 5%, and when the flow rate is small or zero, the pump does not overpressure, thus avoiding the phenomenon that the ordinary centrifugal pump can not supply water when the flow rate is small and the flow rate is large. It greatly improves the efficiency of fire extinguishing and the safety and reliability of fire fighting equipment and firefighters.
The motor of tangent fire pump is a common motor, which does not need to change speed. It effectively solves the problem of pressure fluctuation when the flow rate changes in the process of water supply and serious overpressure when the flow rate is small. Compared with the parallel operation of multiple pumps, it can reduce the number of pumps, reduce the area occupied, and make the operation and management simple. Compared with the variable frequency speed control pump, it can save investment, facilitate management and has more advantages, and is a more perfect solution to overpressure. The impeller of tangent fire pump is open type, with small axial force and no orifice ring, which prevents rust from biting. The pump body and cover can be made of cast iron and ductile iron, and the impeller can be made of aluminium alloy or stainless steel.
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