China's centrifugal pump market is gradually expanding the reasons for the main three aspects:
Sewage treatment is the biggest reason for the demand of China and even the world. By 2020, China's imports of centrifugal pumps will reach a staggering $5 billion, more than $4 billion 900 million in the United States to become the world's largest importer of centrifugal pumps.
The development of the chemical industry is also an important factor in the increase in the amount of imports of China's centrifugal pumps, the third reason is the development of energy. In 2013 China will have the equivalent of two times the United States coal power generation capacity, and its coal power generation capacity will be far more than the European union. The energy industry will no doubt make China more imported centrifugal pump products.
In 2010 China's pump industry is facing the new situation, the new entrants has increased, the upstream raw material prices continued to rise, resulting in lower industry profits, so in China increasingly fierce market competition of centrifugal pump. Faced with this situation, the centrifugal pump industry enterprises should actively respond, pay attention to the cultivation of innovative ability, and constantly improve their production technology, to enhance the competitive advantage of enterprises.
At the same time the pipeline centrifugal pump industry enterprises should fully grasp the market situation, the industry constantly learning the latest production technology, understand the industry of national policies and regulations to grasp the dynamic development of competitors in the same industry, enable enterprises to fully understand the dynamic development of the industry and its status in the industry only so, and make the correct development strategy to enable enterprises to take the lead in the brutal competition in the market.
Service life of centrifugal pump and its replacement technology:
Water pump equipment in the use of continuous operation, the impeller with water friction, the pump cavitation phenomenon, the continuous flow of the pump body parts to exert pressure and erosion. Vibration and audio frequency of the motor, the impact of the atmosphere on the surface of the iron rust, with the increase in the assembly clearance, the motor power consumption increased, then we can consider the re purchase of a new water pump.
1 centrifugal pump service life is generally five to seven years, one or two years of mechanical seal can be replaced, the specific frequency of use, the proposed pipeline pump impeller once in five years, such as hearing the sound of friction is very strong in the motor, then you can open the pump, replace the bearings, bearing out look at the above type of purchase.
2 cleaning centrifugal pump is a high pressure pump, low flow, its life is four to five years, with the cavitation of pump assembly has a bigger effect inside the rubber sealing ring with the pressure drop will be changed, hard plastic hit the life for three months and five months, the connecting rod for one year electric machine for five years.
3 flow rate multistage centrifugal pump, a pump type, the lift from 20 meters - 300 meters, motor from 1.1 kilowatts to 160 kilowatts, multistage pump life for 5-8 years, the main parts are plum pad and mechanical seal, you can see the plum pad damage, mechanical seal wear will be water, and the other part multistage centrifugal pump is sealed with the packing, can control the amount of water with a screw cap, sealing every minute 6 water is better. Leakage frequency should be taken into account to increase the mechanical seal.