Working principle and application of the hottest c

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Working principle and application of chemical pumps

chemical pumps are mechanical chemical pumps used to transport liquids and increase their pressure. Chemical pumps are collectively referred to as chemical pumps, which can improve the requirements of pump products for corrosion caused by all chemicals except pure water through changes in materials or other structures

there are many kinds of chemical pumps, which can be divided into civil and industrial pumps in terms of use; In terms of transmission medium, it can be divided into clean water pump, impurity pump, corrosion-resistant pump, etc; From the material can be divided into fluoroplastic pumps, stainless steel pumps, cast iron pumps and so on

introduction: the chemical pump is an energy-saving pump jointly designed by the high efficiency United Nations. The performance and technical requirements of the pump are designed according to the performance and dimensions specified in the international standard ISO2858. It can be divided into stainless steel chemical pump, plastic chemical pump, fluoroplastic chemical pump, electric chemical pump and pneumatic chemical pump

advantages: the advantages of the chemical pump are that the layout of the whole series of hydraulic performance is reasonable, the user has a wide selection range, and the "rear open" structure is convenient for maintenance The efficiency and suction lift reach the international advanced level

purpose: it is widely used for industrial and urban water supply and drainage, and can also be used for irrigation and drainage of farmland and orchards to transport clean water or other liquids with physical and chemical properties similar to clean water

according to different chemical pump materials, the application fields are classified as follows:

1) chemical pumps (made of stainless steel) are widely used in petroleum, chemical industry, metallurgy, synthetic fiber, pharmaceutical, food, synthetic fiber and other departments to transport alkaline corrosive media

2) chemical pump (made of fluoroplastic) is used to transport any acidic and alkaline corrosive medium

3) chemical pumps (cast iron) are used for industrial and urban water supply and drainage, as well as for irrigation and drainage of farmland and orchards, to transport clean water or other liquids with physical and chemical properties similar to clean water

II. According to the different uses of chemical pumps, their classification is introduced in detail:

1) process flow pumps: including feed pump, reflux pump, circulating pump, flushing pump, sewage pump, make-up pump, output pump, etc

2) utility pumps: including boiler pumps, cooling tower pumps, fire pumps, water source deep well pumps, etc

3) auxiliary pumps: including lubricating oil pump, sealing oil pump, hydraulic transmission pump, etc

4) pipeline delivery pump: pump for oil pipeline, pump for loading and unloading vehicle, etc

III. according to the working principle and structure classification:

1) vane pump: when the pump shaft rotates, it drives various impeller blades to give centrifugal force or axial force to the liquid, and transmits the liquid to the pipeline or container, such as centrifugal pump, vortex pump, mixed flow pump and axial flow pump

2) positive displacement pump: a pump that uses the continuous change of the volume in the pump cylinder to deliver liquid, such as reciprocating pump, piston pump, gear pump and screw pump

3) other types of pumps: there are electromagnetic pumps that use electromagnetism to transport liquid conductive body state; A pump that uses fluid energy to deliver liquid, such as a jet pump, an air riser, etc

IV. classification by transmission medium:

1) water pump: including clean water pump, boiler feed pump, condensate pump and hot water pump

2) corrosion resistant pumps: including stainless steel pumps, high silicon cast iron pumps, ceramic acid resistant pumps, impermeable graphite pumps, hard rubber lined pumps, hard PVC pumps, shielded pumps, diaphragm pumps, titanium pumps, etc

3) impurity pump: including slurry pump, sand pump, sewage pump, pulverized coal pump, ash pump, etc

4) oil pump: cold oil pump, hot oil pump, submersible oil pump, oil slurry pump, liquid hydrocarbon pump, etc

v. classification according to service conditions:

1) large flow and micro flow pumps: the flow is 300m sup3 respectively/Min and 0 O1L/min;

2) high temperature pump and low temperature pump: high temperature up to 500 ℃, low temperature up to - z53 ℃

3) high pressure pump and low pressure pump: the high pressure reaches 200MPa, and the vacuum degree is 2.66---10, which will affect the measurement data of the equipment 66kPa(20—80mmHg);

4) high speed pump and low-speed pump: the high speed is up to 24000r/m. After being decelerated by the deceleration system, the moving beam is driven up and down by the precision lead screw pair for in. At a low speed of 5-1, the technicians of Jinan new era Gold Testing Instrument Co., Ltd. will show you about the technology you need to know before using the metallographic polishing machine 0r/min

5) accurate metering pump: the metering accuracy of flow reaches ± 0.3%

6) high viscosity pump: viscosity up to several thousand pascals (PA · s)

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