History and types of each type of pump

History and types of each type of pump

I would like to tell you the story of pumps for industrial work. Pumps for industrial work are considered very important machines. The main function of a pump is to deliver liquid from one point. or add pressure to the system

Therefore, those who work whether An operator, technician, or engineer in an industrial factory must have the opportunity And definitely work with the pump.

History of the pump (Pump History)

First of all, let me tell you the story of the history of the gas station. Let's go back to the Egyptian era (around 2000 BC). The first pump was invented for drawing water from water sources for use in agriculture. and consumer goods
It will be called "Shadoof" and is like a weighted beam. One side is attached to a water bucket for collecting water. and the other side is for adding weights to lift water from water sources.

In the later era, the prosperous Greco-Roman era (about 100 BC), the pump was developed into a screw pump by the Greek philosopher Archimedes, and the pump he developed would be called “Archimedis pump” is cylindrical in shape. And there is a thread inside. By use, the screw will be rotated by human force. The Archimedes pump can pump water. Including rice and various grains. Makes it work much faster than before.

Moving beyond the industrial era or the 3.0 era in the 15 century, German engineer Pappenheim invented a rotary gear pump for use in lubricant systems. (And is still used until today.)
and is the prototype of all types of positive displacement pumps.

Later in the 17 century, the most popular pump was the Centrifugal pump or centrifugal pump. Invented by engineers and inventors Frenchman named Dennis Papin (Denis Papin)

The pump impeller is a straight blade. and is driven by an electric motor It can create pressure. and the flow rate is very high And this is considered to be the prototype of many pumps such as Axial flow pump, submersible pump, magnetic drive pump, etc. and is considered the prototype until this day.

Type of Pumps

If divided according to work characteristics The pump will be divided into 2, the main type is
Use the principle of centrifugal force from the impeller towards the liquid. The working characteristics are The Flow-Head relationship is inversely proportional. The higher the Head, the lower the flow. But if the Head is low, the flow will be high. Dynamic pumps are divided into the main ones:

1) Dynamic pump

1.1 Centrifugal pump

It is a centrifugal pump or Centrifufal pump that is the most popular and is relatively inexpensive and Reliability is quite high for industrial applications.

The working principle is The liquid enters the suction line and runs straight to the suction eye and is thrown out by the impeller through the outlet pipe. The fluid has increased kinetic energy and pressure and flow rate increases.

2) Positive Displacement Pump

The working characteristics are not like centrifugal pumps at all. They use the compression principle. and continuously compress the liquid, with the Flow remaining constant (with this principle, it is often necessary to use a dosing pump, lube oil pump, etc.) When the Flow is constant, the Pressure will increase with each compression. If someone closes the outlet valve

The pump will make the pressure higher and higher until the PSV opens or there will be damaged parts. If we get more flow, we have to increase the speed of the pump. By adjusting from the pump's stoke adjustment set, for example Diaphragm pump, Gear pump and Screw pump.

Pump standards

In a variety of industries There will be various standards for various pumps such as

which design Or the maintenance and facilitation of use will be different. Do not skip the standard. For example, a Fire pump that uses the NFPA standard will have supervision. And the design is much stricter than normal. If a normal water pump that meets ANSI standards is used, it will not be correct. Plus it's against the law.