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博文

目前显示的是 十一月, 2017的博文

Pump repair

No water or few water out from pump: 1,Check the oulet pipe ,inlet pipe whether there is block in the pump ,remove the block. 2,Check the rotate direction of the motor,and is there open phase/default phase problem,adjust the direction of motor,fix electric wire. 3,Check the suction pipe,see if there is location leak air,tighten the seal surface,exhaust air. 4,The pump is not filled with liquid,there is still air inside,open the air evacuation valve to fill the liquid of the pump. 5,Inlet supply is lack of liquid,the distance from liquid surface to pump is too long,the suction head lift will be declined if the pipe is too long,we usually design the suction pipe with sortest distance from liquid surface to pipe inlet.so,stop the pump system,exam and adjust the pipe. 6,The resistance of pipe net is very big,and the type of pump chosen is not fit.do not use too many pipe bends,and choose a type of pump fits the system. The pump flow is very low: 1,Check the pump and pump system as...

Floor heating is not warm, choose booster pump or circulating pump ?

Booster pump and circulating pump, as the name suggests, have different performance, in the installation position, scope of application, operation and control and so on have their own characteristics, with obvious difference. 1. working principle Circulating pump: circulation refers to the role of the pump, centrifugal refers to the structure of the pump, the two are completely two concepts. The working principle of the circulating pump to water circulating pump is called a circulating pump, such as water heating pipe in the hot water is circulating by the circulating pump up Booster pump: first liquid booster pump is full, and then start the fast rotating impeller, centrifugal pump, impeller blades driven by fluid rotation, the liquid is rotated by the inertia to flow to the outer edge of the impeller, the impeller from the suction chamber into the liquid at the same time, the force on the work of the liquid to liquid, and then the energy out of the impeller, the liquid the kinet...

How to improve Africa people ‘s water supply

Congo (DRC) Ministry of Health announced that 12, since July 11th, the eastern part of the country has reported 3140 cases of cholera cases, at least 117 people were killed. Announcement said, due to the power shortages, goma, north Kivu province, drinking water supply is disrupted, after residents use contaminated water, the rapid outbreak of cholera. Although the authorities took measures, but the epidemic is still in the diffusion, the situation is not good. Cholera is due to the intake of food or water an acute infectious disease caused by the vibrio cholerae pollution, patients often appear the symptom such as vomiting, diarrhea, dehydration, high fever, severe or delayed treatment can cause death. Cholera spread and inadequate access to clean drinking water and sanitation facilities are closely related. African infrastructure is very backward in many countries, even the normal water supply and power supply will be affected. How to pervent this illness happe...

How to calculate the head of dewatering pumps

Well dewatering pump is an important equipment for deep well water extraction system. The whole unit submerged into water when the system being used,extracting groundwater from the earth’s surface simple words, to lift a certain amount of groundwater from underground to the place where water is needed on the ground,The amount of groundwater that is raised in unit time is what is called head,So, is the head of the underground pump calculated from installation position or the water level of the well? First of all, let’s know two nouns – hydrostatic and dynamic water level: Well water level is the surface elevation of the well.The water level has the static water level and the dynamic water level. Before start to pump the water level according to the static water level (i.e., the LS), start to pump, water pumping wells decreased with time, the change of the water level in the water level. That pump out the water is relatively stable, the water level reached a certain depth will stab...

2017 China International Industrial water treatment technology and equipment exhibition

2017 China International Industrial water treatment technology and equipment exhibition and the thirteenth China International Water Treatment Chemicals Exhibition (hereinafter referred to as: international industrial water treatment exhibition) were held in Shanghai New International Expo Center in from November 20th to 22nd There are key topics: 2016 each year with chemical enterprises and industrial park wastewater treatment and management focus, in the display of innovative technologies and products at the same time held a special technical exchanges and buyers matchmaking; 2017 to assist the enterprises to understand and develop the power industry market, the show will be hosted by contact with the electric power and energy saving and environmental protection exhibition jointly organized with the same power, the optimization of power plant and waste water governance forum, and the depth of processing technology innovation forum and other activities to coal-fired power plant wastew...

Ro booster pump for purifield water

Today, we are faced with the problem of water pollution is very serious, in order to improve water quality, choose to use the pure water machine is more and more, water purifier purification efficiency is very high, the impurity can filter the water quickly, we ensure the sanitation of drinking water The working principle of the water pump is not complicated, because the water pump has many advantages, so it is widely used and has attracted the attention and recognition of many people. Principle of booster pump of pure water machine — working principle of booster pump of pure water machine The main work of pure water machine RO membrane pure water machine pump principle is the rotary motion of the motor rotor, drives the eccentric wheel swing motion, the eccentric swing wheel under the action of the motor’s rotary motion into reciprocating motion of the eccentric wheel of the eccentric wheel swing swing. In the static state, it has three circular steel fixed seat, center h...

The development trend of the Stainless Steel Centrifugal pump

Do you know the development trend of the Stainless Steel Centrifugal pump? Centrifugal pump is one of the most widely used industrial chemical system, general machinery, its development prospect is also in the pump industry one of the most broad.Throughout the industry in China’s developing steps in recent years, the fastest developing speed is stainless steel pumps, centrifugal pumps and other pumps industrial products, the market is testimony to the social demand for pump. With the rising of domestic pump industry, the speed of the centrifugal pump localization are also rising, so the development trend of it is benign.Read their reports, however, will also be able to see such forecasts, for the centrifugal pump in China imports will continue to increase.Until 2020, Our country for centrifugal pump imports will reach $5 billion, our country will be imported centrifugal pump the largest number of countries. So the amount of imports mean?This means that China will increasingly rel...

Why pumps leaks ?

When customers brought some water pumps, not necessarily immediately use the pumps, the centrifugal water pump may also be shelved in the warehouse for some time. Long storage in the warehouse can cause problems with the pump, one of which is water pump leakage. why long time not use water pump can cause water pump leakage? Because long time no use of pump,the pump tunnel has no water ,the mechanical seal or rubber seal and air oxidation,the rubber parts and pump spindle connected with each other.Users did not rotate the pump shaft by hand before start the pump,the motor pulls too much at the start, causing the rubber band to pull out,mechanical seal wear resulting in Water Leakage phenomenon. The users should pay attention to the pump , which is parking for more than a month, the pump shaft should be rotate by hand at first before start the pump, also note that the pump is forbidden working without liquid inside. If the mechanical seal is damaged already,we should change a n...