Exhaust Pressure of Liquid Ring Vacuum Pump

Exhaust Pressure of Liquid Ring Vacuum Pump

When the liquid ring vacuum pump works, air will be continuously discharged from the pump body to form the vacuum required by the work at the suction port, that is to say, the exhaust pressure is another major factor affecting the operation efficiency of the water ring vacuum pump.

Exhaust pressure will have a great impact on the suction capacity and shaft operation power consumption of liquid ring vacuum pump. When the liquid ring vacuum pump system is in operation, the larger the exhaust pressure, the smaller the suction capacity of the liquid ring vacuum pump, and the greater the power consumption of the corresponding shaft. On the contrary, the smaller the exhaust pressure of the system is, the larger the suction capacity of the liquid ring vacuum pump will be, and the smaller the power consumption of the corresponding shaft will be.

Therefore, in the actual operation and maintenance process, the exhaust pressure data of the liquid ring vacuum pump system should be observed in real time. When abnormal exhaust pressure data appear, corresponding measures should be taken immediately to update the whole vacuum system, so that the exhaust pressure of the vacuum system can be maintained in the national standard or recommended by the manufacturer for a long time. Within the perimeter, the mechanical efficiency of the whole operation of the liquid ring vacuum pump can be effectively improved by guaranteeing that the liquid ring vacuum pump is always in the optimal working condition.

2BE1 Series Liquid Ring Vacuum Pump

2BE3 Series Liquid Ring Vacuum Pump

Water ring vacuum pump is selected for drying process

In modern industry, drying technology is required more and more, and drying or liquid separation under vacuum condition is the most mature and efficient technology at present. Water ring vacuum pump is the most suitable vacuum pump for this technology.

The selection of vacuum drying water ring vacuum pump should be based on the quantity and composition of evaporated liquid (or water). At the same time, we need to know the quantity of condensable gas and non-condensable gas, and what method to condensate condensable gas, and how to recycle it. Through scientific calculation of drying requirement and liquid and gas quantity under different vacuum requirement, the suitable water ring vacuum pump which can meet the drying process requirement is selected.

The drying evaporation gas volume and condensation temperature of different substances are different, which must be analyzed in detail.

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Water Ring Vacuum Pump Application Advantages

Utilizing the superior ability of water ring vacuum pump, realizing the strength performance of the overall development of the product, exploring the improvement of its quality strength, expanding the application of the product and the embodiment of its superior function, enhancing the development of the productivity of the enterprise with a reliable value level, so that in the overall promotion of the superiority process, it can continuously accelerate the embodiment of its product application strength, and fully enhance the practical performance of its products. Continuous development, highlighting the pioneering advantages of the use of equipment strength, in order to comprehensively drive the strength of the product, enhance the use of its quality strength.

From the view of the performance process of the value strength of water ring vacuum pump, it is necessary to exert its overall value ability through efficient product application, to enhance the quality strength of equipment by using the advantages of equipment, and to develop its practical value ability from the development of the quality and superior ability of the whole application, so as to fully improve the development strength of its product application effect, so as to make progress. Step by step to enhance the exploiting advantages of its product application ability, to comprehensively drive the quality advantage to enhance the overall practicability of the equipment.

With enterprises looking for more scientific, energy-saving and environmental protection equipment, the application of water-ring vacuum pump in ketone production has been deepened.

First of all, the single-stage water-ring vacuum pump has been successfully applied in the production of acetone. Because of the technological progress of equipment manufacturing and the improvement of processing accuracy, the performance of the single-stage water-ring vacuum pump which could not meet the technological requirements before has been greatly improved. In addition, the single-stage water-ring vacuum pump has the advantages of high efficiency, low energy consumption, low calorific value and less self-agglomeration of acetone. Gradually by vinyl ketone manufacturers.

Secondly, the improvement of circulating medium. German Hurst Company proposed a new method of using diketene as circulating fluid to transport ethylene ketone. By adjusting the ratio of two kinds of diketene liquids in circulating fluid (one containing ethylene ketone and one without ethylene ketone), different quantities of ketone and diketene were obtained. This method is suitable for the production of diketone, but for the production of acetic anhydride. It is a reasonable and scientific choice to use acetic acid as circulating liquid and adjust the ratio of acetic acid to acetic anhydride to get different amounts of acetic anhydride and acetone gas. However, it is necessary to derive the heat released during the production of acetone in time.

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How to use and use the laboratory freeze dryer

How to use the laboratory freeze dryer? How to use it? Shanghai Tianfeng Vacuum Freeze Dryer Equipment Manufacturer here to share with you, the current common laboratory freeze dryers are small bell-jacket equipment, its pre-freezing and drying are separated, not in situ.

I. Prefreezing Operation

(1) Turn on the refrigerator and pre-cool the equipment. When the temperature of the cold trap drops below - 40 C, the material can be pre-frozen.

(2) Put the material into the material tray (liquid is directly injected into the material tray, solid or bottled material is evenly placed on the material tray);

(3) Put the material tray into the pre-freezing rack, and the probe into the material tray to fully contact with the material, so as to reduce the error between the sample temperature and the actual temperature.

(4) Place the pre-freezing shelf in the cold trap;

(5) Cover the insulation cover;

(6) After pre-freezing until the temperature of each part of the material drops below the eutectic point of the material, the pre-freezing can be completed for about 1 hour and ready to enter the drying stage.

2. Drying operation

(1) Remove the pre-freezing rack from the cold trap;

(2) Remove the pre-frozen material and put it on the drying rack;

(3) Place the drying rack on the cold trap, as shown in the figure.

(4) On the premise that the sealing ring is intact and free of debris, cover the "plexiglass cylinder";

(5) Clockwise tighten the drain valve;

(6) Open the vacuum pump and the vacuum gauge. The vacuum degree decreases, and the value of vacuum degree < 20 PA is normal in general drying process.

(7) Hang the flask one by one and open the multi-manifold valve; close the multi-manifold valve after drying the material in the flask and remove the flask.

(8) After drying, first open the "water (air) valve" and then close the vacuum pump. Remove the plexiglass cover and collect the dried matter.

(9) Close the "water (air) valve", defrost the equipment, open the "water (air) valve" drainage after defrosting, wipe the equipment clean.

(10) When the vacuum pump is not working, cover the exhaust holes to prevent dust from entering.

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Vertical vacuum freeze dryer

Vacuum freeze dryer is widely used in medical, pharmaceutical, biological research, chemical and food fields. Items treated by freeze-drying are easy to be preserved for a long time, and can be restored to the pre-freeze-drying state and maintain the original biochemical characteristics after adding water. LGJ-12 freeze dryer is suitable for laboratory use or a small amount of production, and can meet the requirements of conventional freeze-drying in most laboratories.

Technical parameters characteristics of LGJ-12 freeze dryer:

1. Integral structure design, small size, no external flange, easy to use, no leakage.

2. All materials in contact with the product are inert materials to meet the requirements of GLP.

3. Cold trap and operating table are made of stainless steel, which is corrosion-resistant and easy to clean.

4. All stainless steel inflatable (drainage) valves designed and manufactured by our company are safe, anticorrosive and leak-free.

5. The cold trap has large opening, no inner coil, with sample pre-freezing function, and no cryogenic refrigerator is needed.

6. Specialized gas diversion technology, uniform cold trap ice capture, ice capture ability.

7. International well-known brand compressor, high efficiency and energy saving, long service life, low noise.

8. Well-known brand vacuum pump, high pumping speed, to achieve higher vacuum limit.

9. Vacuum pump protection function, can set the starting cold trap temperature of vacuum pump, protect the service life of vacuum pump.

10. Specialized design of FD-LAB lyophilizer control system + SH-HPSC-I modular controller, with high reliability and stability.

11. Intelligent data recording system, real-time record and display cold trap temperature curve, sample temperature curve, vacuum curve, derived data can be browsed and printed by computer and a variety of operations.

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