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Types, characteristics and uses of commonly used pumps

Publish Time: 2022-03-07     Origin: Site

Types of pumps

There are many types of pumps and different structures, which are divided into three categories according to the function of the pump.

1. Vane pump, also known as power pump, this pump continuously applies energy to the liquid, such as centrifugal pump, mixed flow pump, axial flow pump, etc.

2. Positive displacement pump, through the periodic change of closed and full body volume, discontinuously apply energy to the liquid, such as piston pump, gear pump, screw pump, etc.

3. Other types of pumps, these pumps have different working principles, such as fire pumps, jet pumps, water hammer pumps, electromagnetic pumps, etc.

Each type of pump has a great relationship with its material, performance and use, except for common vertical pumps, chemical pumps, vacuum pumps, self-priming pumps, centrifugal pumps.

The following is a summary of the types of pumps edited by Hiltech for your reference

1. According to the principle:

Reciprocating Pumps/Piston Pumps/Piston Pumps/Diaphragm Pumps/Rotary Pumps/Screw Pumps/Liquid Ring Pumps/Gear Pumps/Sliding Vane Pumps/Roots Pumps/Jet Pumps/Vacuum Pumps/Hose Pumps/Roller Pumps/Cam Pumps/Peristaltic Pumps/Disturbance Pumps /Vane Pumps/Centrifugal Pumps/Axial Flow Pumps/Mixed Flow Pumps /Vortex Pumps/Jet Pump/Water Hammer Pump/Rotary Shell Pump.

2. By material:

Cast iron pump /Cast aluminum pump/ Stainless steel pump /Plastic pump Glass pump /Ceramic pump/ Graphite pump/ Cast steel pump /Cast copper pump /Titanium alloy pump/ Aluminum alloy pump/ Fluorine lined pump.

3. By performance:

Explosion-proof pump/ Wear-resistant pump/ Corrosion-resistant pump /Leak-free pump /Sanitary pump /Automatic pump /Variable frequency pump.

4. By structure:

Single-stage pump /Multi-stage pump /Single-suction pump /Double-suction pump/ End-suction pump /Self-priming pump /Shaft-sealed pump /Canned pump /Micro-pump /Long-shaft pump /Split-shaft pump /High-speed pump.

A pump is a machine that conveys or pressurizes a fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid. The pump is mainly used to transport liquids such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, as well as infusion, gas mixture and liquid containing suspended solids.

Pump is a general-purpose machine with many types and wide applications. It can be said that in various sectors of the national economy, wherever there is liquid, there is a pump working. Its main application scope: agricultural irrigation and drainage, petrochemical industry, power industry, Urban water supply and drainage, and shipbuilding industry.

In the production of chemical and petroleum sectors, most of the raw materials, semi-finished products and finished products are liquids, and the production of semi-finished and finished raw materials into semi-finished products and finished products needs to go through complex technological processes. During these processes, pumps play a role in transporting liquids and providing pressure flow for chemical reactions. In addition, in many installations, pumps are used to adjust the temperature.

The water pump is a water-lifting machine that lifts water from a low place to a high place under the drive of a power machine. Currently in rural.

It should be used for drainage, irrigation and engineering construction in farmland water conservancy projects. The types of commonly used pumps are generally centrifugal pumps, axial flow pump, masonry image, mixed flow pump, submersible electric pump, shallow well pump, deep well pump, etc.

Fill the pump casing and suction pipe with water, then start the motor, so that the pump shaft drives the impeller and the water to rotate at high speed, and the water.

Centrifugal motion occurs, is thrown to the outer edge of the impeller, and flows into the water pressure pipeline of the pump through the flow channel of the volute pump casing.

The basic performance parameters of the centrifugal pump are: flow Q (m3/h, L/h), head H (m), necessary NPSH Δhr(m), rotational speed n (rev/min), shaft power and efficiency η.

Types, characteristics and uses of commonly used pumps.

It is suitable for conveying clean water below 80-100℃ and non-corrosive liquid. It is one of the most common centrifugal pumps.

Among them, single-stage double-suction centrifugal pump. Mainly used for urban water supply, power station, water conservancy project and farmland irrigation and drainage.

The biggest feature of the double-suction centrifugal pump is the large flow rate. Due to the symmetrical shape of the impeller, there is no need to install an axial force balance device.

Multistage centrifugal pump.

Multistage centrifugal pump is a collection of two or more centrifugal pumps with the same function, and the fluid channel.

Structurally, the medium pressure relief port of the first stage is communicated with the inlet of the second stage, and the medium pressure relief port of the second stage is connected to the first stage.

The three-stage inlets are connected, so the series-connected mechanism forms a multi-stage centrifugal pump.

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