Pumps are available in a variety of sources, primarily for the transport of liquids such as water, oil, acid and alkali, emulsions, suspoemulsions and liquid metals, as well as liquids, gas mixtures and liquids containing suspended solids. In this article, Dalan Motor's small series will focus on the working principle and performance characteristics of the vane pump and gear pump that we often use.
ZHejiang Sealand Technology Co., Ltd. is a trustworthy manufacturer of LNG Mass Flow Meter, LNG Mass Flowmeter, LNG Flow Meter, LNG Flowmeter, LNG meter, ATEX, IECEx & CE approved.
We are the only Chinese brand who gets ATEX, and we get it from TUV SUD, the most authoritative institute for ATEX. Our meter passed all tests carried out by TUV without any modification. Their only suggestion is to replace the cable entry device with a ATEX approved one; thus, please rest assured that we produce our meter with high standard :)
Besides, Sealand meter and calibration lab are approved by CNAS, member of ilac in China.
Pumps are available in a variety of sources, primarily for the transport of liquids such as water, oil, acid and alkali, emulsions, suspoemulsions and liquid metals, as well as liquids, gas mixtures and liquids containing suspended solids. In this article, Dalan Motor's small series will focus on the working principle and performance characteristics of the vane pump and gear pump that we often use.
Vane pump
According to the type, it is divided into:
1. Specially refers to the vane pump in the volumetric pump.
2. Refers to the three pumps of the power pump (centrifugal pump, mixed flow pump, axial flow pump) or other special pumps.
According to whether the theoretical displacement per revolution is a fixed value or a variable value, it can be divided into:
1. Vane type variable pump.
2. Vane type quantitative pump.
Blade pump performance characteristics:
1. Advantages:
1The output flow is evener than the gear pump, the operation is stable and the noise is small.
2 The working pressure is higher and the volumetric efficiency is also higher.
3 Single-acting vane pump is easy to adjust the flow rate, and the double-acting vane pump is balanced by the radial fluid pressure of the rotor and has a long service life.
4 compact structure, small outline size and large flow.
2, disadvantages:
1The self-priming performance is worse than that of the gear pump, and the oil suction condition is stricter. The speed range must be
In the range of 500-1500 r/min.
2 It is sensitive to oil pollution, and the blade is easily killed by impurities in the oil, and the work reliability is poor.
3 The structure is more complicated, the manufacturing precision of the parts is higher, and the price is higher.
4 vane pumps are generally used in medium pressure (6.3 MPa) hydraulic systems, mainly for machine tool control, especially double-acting vane pumps, which are widely used in precision machine tools because of low flow pulsation.
Gear pump
The teeth of the two gears of the gear pump are separated from each other to form a low pressure, the liquid is sucked in, and the other two gears are closed to each other to form a high pressure to discharge the liquid.
Gear pump performance characteristics:
1. Advantages:
1The structure is simple and compact, the volume is small, the quality is light, the processability is good, and the price is cheap;
2 Self-suction is strong and not sensitive to oil pollution;
3 Large speed range, impact resistant load, easy maintenance and reliable operation.
2, disadvantages:
1 radial force imbalance, large flow artery, large noise, low efficiency;
2 The parts are poorly interchangeable and are not easy to repair after wear. They cannot be used as variable pumps.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
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Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
The 1'' flow meter specification is as follows,
|
Specifications of Coriolis Mass Flow Meter |
|
|
Model No. |
CG-25 |
|
Max. flow rate |
200kg/min |
|
Nominal diameter |
25mm( 1 inch) |
|
LNG accuracy grade |
±0.2% |
|
Zero stability |
0.62kg/hr |
|
Repeatability |
0.05% |
|
Warranty |
2 years |
|
Temperature accuracy |
±1°C ±0.5% of reading |
|
Fluid temperature |
-200~160°C |
|
Packing |
1set/carton |
|
Package size |
665*660*315mm |
|
G.W. |
23kgs |
Please feel free to contact us if you need any other size!
LNG Mass Flow Meter, LNG Mass Flowmeter, LNG Flow Meter, LNG Flowmeter, LNG meter
Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeter.com