Nanjing lanshen Pump Corp.LTD., founded in 1958,after 50 years of development, is now a registered capital of 50 million yuan, with assets exceeding 400 million yuan, accounting for area of 280 acres. China’s first submersible sewage pump and mixer in the birth and to fill the gap. Currently has a centrifugal pump, switch type electric control, water treatment equipment for mass production of special machines ability to produce its own sewage plant and pumping station for more than 70% of the equipment.
Lanshen Pump R & D and manufacture Submersible Sewage Pump ,sewage pump,axial pump,submersible sewage pump.
Submersible sewage pump because of the pump and motor shaft rotation, short, coaxial weight, so bearing parts of the radial load was relatively small, life than general pump is much longer. Don’t exist cavitation damage and irrigation water, etc. Especially after a operator has brought great convenience. Vibration noise, low temperature, motor of air pollution. In municipal engineering, industrial, building, hotel, hospital, water conservancy construction and other industries plays a very important role.
The key of submersible sewage pump is reliability problems, because of the use of sewage pump diving in liquid is under the situation, Transmission medium containing some solid materials is mixed liquid. Pump and motor on very near, pump for vertical layout, rotating components with impeller under water stress weight above. These problems are made in diving sewage pump seal, motor bearing capacity, bearing arrangement and the requirements of the selection of sewage pump than average.
In order to improve the life, submersible pumps manufacturer in the pump to protect system, namely in the pump leakage occurs, overload, overtemperature fault can make the automatic alarm, and automatic stop for repair. The submersible sewage pump set protection system is necessary, it can effectively protect the safe operation of pump.
Submersible sewage pump is provided which is adapted for location in a sump or the like, and which includes a motor case, a driving motor, an impeller case, and an impeller located in the impeller case, the impeller defining a back shroud space between its upper face and the confronting, superjacent portion of the impeller case.
The usual submersible pump is sealed against fluid entry for operation in a submerged condition, and is designed to be cooled by the liquid material within which it is submerged. Dangerous overheating can occur if such a pump is not operated in a submerged condition, and such overheating may result in burning or explosion of the motor.
The apparatus includes a vent which opens at one end into the back shroud space and at the other end opens to the exterior of the impeller case. Whenever air is drawn or injected into the low pressure vortex area of the sewage pump for controlling the amount of liquid discharged, the air collecting in the back shroud space is constantly vented to facilitate operation of the impeller and reprime the pump.
1.When lifting the device, absolute prohibition of lifting cable directly or use cable to lift other heavy objects.
2.The cable ends is strictly prohibited immersed in the liquid.
3.The housing of all equipment should be grounded to prevent electric shock.
4.The inner diameter of the outlet pipe should be consistent with the requirements (in principle, be smaller than the pump outlet diameter).
5.Submersible sewage pump can not be placed at the entrance. When the water pump on the floating sand or mud, due to vibration, the pump resulting in subsidence, in this case, we recommend that the pump is placed on a large plate.
6.Pumps used in the sewage, the case will accumulate around the mud, debris, etc., resulting in reduced heat transfer rate, rise in temperature inside the motor and shorten the life of the stator or cause undue tripping, so sewage pumping level after withdrawing to a minimum, clear debris (once a year) and, if necessary, open the cooling jacket fixed plate, clean-up and circulating water cooling jacket in the debris.
7.When the temperature drops below 0 ℃, if the pump is still functioning can continue to use, or should be lifted dry and ventilated place, and pay attention to antifreeze.
China is a country which with severe water shortage, water resources per capita is only 2300m³, about 1/4 of the world average, is one of the world’s 13 water-poor countries. Water resources in China has the following characteristics: the regional imbalances in the distribution of water, the amount of water in the process when the distribution is very uneven, incompatible combination of land and water resources.
With the rapid economic growth, urbanization continued to improve, widespread pollution of surface water, especially organic pollution of river flowing through the city is very serious, leading to the lake nutrition issues outstanding; groundwater source and point source pollution, coastal sea worsening water pollution; lack of water conflicts has been very sharp, resulting in huge economic losses, affecting the sustainable development of regional social economy.
Nanjing lanshen Pump Corp.LTD.manufactures submersible sewage pump, sewage pump, axial pump, and has made great contributions in the water pollution control industry.