The pharmaceutical industry to use several kinds of imported vacuum pump -

Pharmaceutical industry commonly used several kinds of imported vacuum pump

in the pharmaceutical industry, often have vacuum equipment, such as vacuum evaporation, vacuum concentration, vacuum, vacuum sterilization, vacuum drying, vacuum packaging and vacuum emulsification. These devices must be equipped with imported vacuum pump. The pharmaceutical industry commonly used several kinds of imported vacuum pump have? What are the advantages and disadvantages of each? As the world's leading supplier of vacuum field solution, vacuum can provide all kinds of vacuum products, systems, solutions and custom infrastructure solutions.

how to application of vacuum pump in the process of drug production, the first thing you need to remove the following concepts:

1, the concept of 'vacuum' : 'vacuum' refers to the state of gas under atmospheric pressure in a given space, namely the density of the gas molecules in the space below the atmosphere of the region. No gas space called absolute vacuum.

2, vacuum pump: this is used to produce, improve and maintain the vacuum equipment.

3, swept volume, flow rate, used to work in unit time inner pressure vacuum suction.

4, extreme pressure, Vacuum degree) : zero extraction under the condition of vacuum pump can achieve absolute pressure.

5, working pressure, Vacuum degree) : under the rated pumping gas absolute pressure of injection pump.

6, working steam pressure, steam pressure of the steam jet vacuum pump work.

7, working steam consumption: steam jet vacuum pump steam consumption per unit of time.

8, cooling water temperature, water injection pump circulating water temperature or the condenser circulating water temperature of the steam jet vacuum pump.

9, cooling water circulation: per unit time by the water injector or condenser circulating water of steam jet pump.

next, let us know in the pharmaceutical industry into the theme and the advantages and disadvantages of several common import vacuum pumps.

the pharmaceutical industry commonly used imported vacuum pump can be simply divided into vacuum pump variable volume and jet vacuum pump. Variable displacement pump is accomplished using the periodical change of pump cavity volume of suction and exhaust equipment. Valve vacuum pump, water ring vacuum pump, roots vacuum pump is a vacuum pump variable volume. Jet vacuum pump is a kind of momentum transfer pump, which makes use of the pressure drop of venturi effect generated by high speed jet gas transmission to export. Water jet vacuum pump and steam jet vacuum pump, steam Water jet vacuum pump and steam The combination of water jet vacuum pump and jet vacuum pump.

here, we choose some studies, for example, reciprocating vacuum pump, water ring vacuum pump and jet vacuum pump.

1, reciprocating vacuum water pump

it makes piston reciprocating motion or rotation, with suction, compression and exhaust gas. Their advantage is that the introduction of the new pump has the high vacuum degree, but the pistons are moving parts, so we can not avoid the wear of piston. Along with the increase of the number of maintenance work vacuum will continue to fall, until can't meet the production requirements. This kind of pump noise is big, high consumption, high failure rate. This is also a fatal flaw. Usually, it is necessary to open a standby equipment, this will greatly increase the equipment investment and operating costs. In addition, if you use this kind of pump for pumping condensable gas ( Such as water vapor) , it will make the lubricating oil emulsion. Therefore, it can only be used for pumping non-condensable ( Based on the air) Gas, and cannot be pumped granular media. Limits its application range

2, water ring vacuum pumps

it is composed with installed in the pump shell of the eccentricity of the rotor blades, then fill in the pump shell, in order to form with water ring pump casing concentric. Compression and drain well. Under low vacuum, it has the advantage of possesses large swept volume, and can direct pumping condensable gas. Its disadvantage is that the vacuum degree is low, and cannot be inhaled with granular media.

3, jet vacuum pump

jet vacuum pump has a wide range of vacuum degree, can be directly pumping condensable gas, such as water vapor and granular media. Simple structure, convenient operation, the operation component maintenance quantity is little, the advantages of saving energy and reducing consumption increasing, widely used in every process of chemical action.

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