跳至主要内容

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 stabilize the water surface elevation is no longer called stable water level drops usually said water level refers to the stable water level (or above – LD). The vertical height from the static water level to the water level drawdown depth of the pumping process called drawdown or drawdown (i.e. above – S).
Then, according to the height difference between the water level of the well and the height of the ground when the pump works, it should be based on the dynamic water level (that is, the top of the image – LD) as the lift.
If the installation position of the pump as the head will be too large, the first cause of equipment procurement cost waste: pump to buy large, pipeline cable to lengthen, operation and electricity; also caused by the pump operation is large, flow overload, easy to cause motor burnout
If the static water level is chosen as the head, the head will be too low, the water will not be enough or the water will not be pumped at all.
Gelaili is one of the world’s leading manufacturer of water pump and water pump system,Gelaili products are mainly used in heating,refrigeration and air conditioning technology,water supply and sewage treatment and other fields.Centrifugal water pump is always our flag product,it is a high effecient and widely being used product. the feature is the pump works very safely,stable and long service life,requires small intall area,save the room for it.
The centrifugal water pump can be used in fire security, water supply, air conditioning circulation system,as coolant pump,aquarium water pump,ro booster pump,booster pump,transfer chilling water,dirty water pump,water treatment at home residence,hotel,restaurant,office building and so on.
Our pumps are very good quality and multiple choose,we integrated a full range of product development, designing, production, sales and services into a whole.You can trust us and choose our products,we will service you from top to tail.
标签：

评论

发表评论

此博客中的热门博文

Pressure fluctuation propagation of a pump turbine at pump mode under low head condition

Pressure fluctuation at the vaneless space and vanes passages is one of the most important problems for the stable operation of a pump turbine. The fluctuation appears in any operating condition. Much research has been done on the pressure fluctuation of hydraulic machinery. However, the details of pressure fluctuation propagation of the pump turbine at the pump mode have not been revealed. The modern pump turbine with high water head requires the runner to be “flat”, which would induce pressure fluctuation more easily than the low head pump turbine. In this article, a high head pump turbine model is used as the research object. As the pressure fluctuation at off-design point is more serious than at the design point, the low head condition is chosen as the research condition. Pressure fluctuation at the vaneless space and vanes passages is predicted by the computational fluid dynamics method based on k- shear stress transport model. The experiment conducted on the test rig of the Har...
发表评论
阅读全文

Several type of pumps for changing human life

Today we will talk about several type of water pump ,which changes our life. 1, Booster pump :The last decades,people who lives in high building can feel pains caused by the low water pressure,especially in rush hour.But now,the convenience booster pump takes to us become a part of our life. We nearly forget it exist.In nowadays,building is taller and taller,but even on the top of the high cloud bulding,the flow of water is also very stable and strong. 2,Ro booster pump:As ro technology developed,ro booster pump step into our daily life,since the pump appeared ,make water clean and safety is not a hard work,this type of pump helps a lot of people drink clean water,avoid disease,especially some people who is required only drink purified water,do not need to pay too much money to buy purified water,we can get it anywhere.Even in desert,bottle water can be brought easily.some sweet water purified by sea water,how magical pump is it? 3, Aquarium water pump ,fishes which we can see on...
发表评论
阅读全文

A centrifugal water pump show us your capability

In recent decades, China’s property market has entered a rising rapidly, the purchasing power exuberant state. However, due to the recent weakness in the market, the property market began to gradually slow down, into a stable, and even occasional decline stage. Recently, one of my friends suddenly called me and excitedly told me that he had taken a fancy to a house in the neighborhood,the real estate belongs to Poly property, it is said that the property just opened, it attracted many buyers of onlookers.in just a few days, the house has been sold out.My friend has been on the sidelines all the time, as he has a set of property, not anxious to buy second sets of houses,instead, he chose carefully and wanted to buy one sets around the good evironment,he wanted it is a quality and residential environment are both very good house.I don’t know why he has taken a fancy to this neighborhood recently. My friend was excited to invite me to go with him to purchase procedures,So, we came to t...
发表评论
阅读全文