Fire pump self-priming device - the application of rotary vane vacuum pump

at present, the existing fire pump self-priming device structure design is unreasonable, the field technicians urgently need to develop a new type of fire pump self-priming device. At present, there are many different kinds of fire pump at home and abroad, self-priming form varied also. With internal and external self-priming pump, vortex pump and liquid ring vacuum pumps, rotary vane vacuum pump and nozzle. Vacuum pump, etc. Rotary vane vacuum pump has larger vacuity, higher pumping rate and shorter self-priming time, especially suitable for need quick absorbing water. This article discussed the rotary vane vacuum pump application in fire fighting pump self-priming device.

fire pump self-priming device including fire pump. One end of the fire pump connected to the suction pipe, fire pump connected to the fire pool, on the other side of the suction pipe connection pipes, the other end at the end of the suction bottom valve equipped with straw. Suction pipe connected to water supply pipe, so that the suction pipe is always full of water, so when the fire pump shaft high above the fire fighting water level, water pump still can absorb water, water storage tank, is equipped with the exhaust valve on the suction pipe, to drain the air out of the tube, is advantageous to the fire pump suction. Suction bottom valve installed in the other end of the suction pipe, in order to prevent the fire water pump suction pipe after the stop of the water back into the water tank.

according to the working principle of the rotary vane vacuum pumps for fire pump self-priming device design and analysis of rotary-vane vacuum pump are analyzed.

with integrated r&d, manufacturing and sales and service ability of rotary vane vacuum pump manufacturers. Main rotary vane vacuum pump series: single-stage rotary vane vacuum pumps, C series twin twist vane vacuum pumps, D series twin twist vane vacuum pumps.

the working principle of rotary vane vacuum pump

rotary vane vacuum pump by the pump body, rotor, blade, ring and the end cover. Eccentric rotor is installed in the pump body, and has the blade slot in the radial direction, and blade installed in the slot. When the rotor rotates, centrifugal force due to the role of the ring and skateboard itself, skateboard closely adhere to the pump body cavity wall, and make the air inlet and outlet. Work volume, along the direction of the air intake decreases gradually, in order to discharge gas, so as to achieve extraction, the purpose of the vacuum.

fire pump self-priming device shall meet the following requirements:

1) fire pump should be used since the filling water absorption;

(2) the fire pump directly from the municipal pipe network water, shall be installed on fire pump outlet pipe reduced pressure backflow preventer.

(3) when the inlet not absorbing well, prevention should be installed at inlet cyclone.

rotary vane vacuum pump in fire pump self-priming device of the importance of

fire pump start properly is the key of the fire. Fire pump self-priming device is the key to start the fire pump. Also specify the building fire equipment maintenance. Need regular safety inspection and regular cleaning and inspection. Reality is often bad maintenance, equipment can't normal use over time, so as to delay the emergency fire fighting time.

at present, various types of fire equipment in China, the quality is different also. Only in the design of reliable, under the premise of strictly to ensure fire safety. At present, the fire control products in the market lack of a lot of regulation. In the design of automatic inspection and design facilities still need personal advice, you can start on the corrosion and fire pump pumps, such as failure to timely maintenance, greatly reduced the risk of fire water pump start-up.

only constant mechanical vacuum pump factory main products are 2 bv, V, VG, VI, VZ,. vn, LRP series water ring vacuum pump, X, GVD (gnu visual debugger) series rotary vane vacuum pump, what ZJ had roots vacuum pump series, GXS, DHS, VSD, GHS series screw vacuum pump, DZS series claw pump, the central vacuum system, etc. The company acting with atlas. Manufacturing ( 阿特拉斯) , times g speck products. Constant to mechanical and electrical vacuum water pump manufacturer with many years of production experience, first-class technical staff, perfect after-sales channels to make the product quality stable and reliable for many years. Constant to mechanical and electrical manufacturers expect to cooperate with every colleague, more knowledge of vacuum pump please continue to pay attention to our constant mechanical and electrical equipment co. , LTD. Contact phone number - 400 8625533, mobile phone 13928410990.

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