Industrial liquid ring vacuum pump

Industrial liquid ring vacuum pump

In fact, the liquid ring vacuum pump (water ring pump) is a kind of coarse vacuum pump. In this respect, we should pay attention to the fact that the limit vacuum it can obtain is actually 2000-4000Pa. In terms of its series atmospheric ejector, to a large extent, it can actually reach 270-670 Pa. Moreover, the water ring vacuum pump, to a certain extent, will be called a compressor.

Furthermore, we should pay attention to the liquid ring vacuum pump, which will be used as a self-suction pump at the beginning, in fact, it will gradually be used in petroleum, chemical industry, as well as in many industrial sectors such as machinery, mining and light industry, medicine and food.

In many process of industrial production, vacuum filtration, vacuum water diversion and vacuum feeding are common, followed by vacuum evaporation, vacuum concentration, vacuum moisture return and vacuum degassing. In fact, liquid ring vacuum pump itself is The steel frame has been widely used.

Next, we should pay attention to the rapid development of vacuum application technology, liquid ring vacuum pump in the rough vacuum access, has been paid attention to. Because the gas compression in the liquid ring vacuum pump is isothermal to a large extent. In this regard, we should pay attention to the fact that it can extract flammable or explosive gases to a certain extent. In addition, it can also extract dusty or water-bearing gases.

Later, in fact, the liquid ring vacuum pump body will be directly equipped with a suitable amount of water as its working fluid. Moreover, as far as the impeller is concerned, that is to say, when it rotates clockwise in the direction indicated by the impeller, the water will be thrown around directly by the impeller, because the centrifugal force on the liquid ring vacuum pump will form a closed structure.

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Miniature vacuum pump

Miniature vacuum pump

Miniature vacuum pump is widely used in many industries because of its own advantages. The volume of the equipment is very small in the process of using. There is no oil in the process of using the miniature vacuum pump, so it is very environmentally friendly in the process of using.

Nowadays, the specifications of miniature vacuum pump are very many. In the process of selecting, the manufacturer first needs to clarify the use of the equipment. If the equipment does not need manual water before pumping, the pump can pump the low water more effectively, otherwise it will be unable to pump and damaged. This happened.

The advantage of the miniature vacuum pump is that when the equipment is not in contact with water, it directly pumps the vacuum. After the vacuum is formed in the equipment, it needs to press the water up by air pressure, and then start pumping. In the process of using, it may be pumped directly because there is no water in the pump. After forming a vacuum, the water is pressurized by air pressure, and then pumped.

The resistance of the miniature vacuum pump appears in the process of pumping, and then reduces the scope of selection according to its judgment conditions. But in the process of using the amount, we need to consider the exhaust end of the equipment in time, so as to better select the optional range.

In the practical application of micro vacuum pump, the exhaust status of the equipment is different. One is that the exhaust is relatively smooth and directly to its atmosphere. The other is that the exhaust resistance is relatively large, such as the exhaust pipeline has valves, large damp sensors and other components.

Water ring vacuum pump

Вакуумная печь

VACUUM FURNACE

vacuum pumps,vacuum furnaces

Vacuum Pump for Vacuum Negative Pressure Adsorption

It is widely used for vacuum adsorption of thin and smooth metal products, glass, paper, density boards, wood boards, plexiglass, PVC boards, etc. It can also be used in vacuum casting of gold and silver jewelry, impregnation with temperature, wood grain transfer printing of aluminium alloy and other industries.

Combined with the comprehensive parameters of water ring vacuum pump and the actual situation of NC engraving, the vacuum pump of engraving machine is based on the requirement of woodworking NC engraving adsorption. A vacuum negative pressure device specially designed for woodworking adsorption, glass adsorption and metal adsorption needs vacuum adsorption, vacuum traction, vacuum lifting and vacuum intermittent feeding.

The vacuum pump of engraving machine consists of main negative pressure power source water ring vacuum pump, vacuum check valve, muffler, solenoid valve, air switch, filter, circulating water tank, pipeline and valve.

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Wiring mode of vacuum unit

The newly purchased vacuum unit only leads out the cables before use, and needs to connect the cables by itself when installed. However, when connecting the cables, we must pay attention to the correct method, otherwise it will have a great impact on the use of the vacuum unit. Next, we will explain the connection mode of the vacuum unit.

In connection with vacuum unit, we should pay attention to the need to use polyester insulating tape to wrap half of the first circle, wrap 8-12 layers, wrap them up, then use plastic tape to wrap two layers for strength; about the vacuum unit in connection, it should be in its cable copper core stripped out about 30-35 mm long, with abrasive cloth Wipe the copper wire clean and shine properly. Also strip the copper wire of three-core cable from 30 to 35 mm and wipe it with sand cloth.

The wiring of the vacuum unit will insert the three-core cable into the stripped copper wire part of the external cable, then tie it tightly with a thin copper wire according to the graphic pattern, cut off the remaining part, press it flat with scissors to prevent the tie-up; when wiring the vacuum pump, the three wire heads should be soldered firmly with solder respectively, requiring the surface of the solder head to be smooth. Slip, no burr and false welding. If there is no soldering or non-smooth, vacuum pump should be re-welded until the requirements are met.

The grounding wire of the vacuum unit must also be wrapped according to the requirements of submersible cable wiring technology; after the connection of the vacuum unit, the insulation resistance of the unit should be continuously shaken to observe its changes while it goes down the well in order to prevent the cable insulation skin from being broken on the wall of the well. If the insulation level drops sharply below 0.5 Mega ohm, the unit must be lifted up. Detection of causes.

The wiring of vacuum unit must be wrapped with plastic tape to cover three wires and two layers. The first layer exceeds 50 mm at the end of each conductor insulation layer, and the second layer exceeds 50 mm at the end of the first layer. After wrapping, a basin of cold water should be taken to immerse the wrapped wire head safely in water. After 12 hours, insulation should be measured by 500V megohm meter. It should not be less than 50 megaoh, otherwise it should be re-dressed until it meets the requirements.

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Vacuum system and high vacuum system

There are many kinds of vacuum application equipment, but no matter what kind of vacuum application equipment, there is a suction system to exclude the gas in the vacuum container, so as to obtain the required vacuum conditions in the vacuum container. For example, a container for vacuum treatment is connected with a vacuum pump by pipes and valves. When the vacuum pump evacuates the container, there must be a vacuum measuring device on the container, which constitutes a simple vacuum pumping system.

Simple vacuum system can only obtain the vacuum degree in the low vacuum range in the pumped container. When it is necessary to obtain the vacuum degree in the high vacuum range, a high vacuum pump is usually connected in series in the vacuum system. When a high vacuum pump is connected in series, valves are usually added to the inlet and outlet of the high vacuum pump, so that the high vacuum pump can keep the vacuum alone. If the series high vacuum pump is an oil diffusion pump, in order to prevent a large amount of oil vapor from flowing back into the pumped container, a trap - water cooling baffle is usually added at the entrance of the oil diffusion pump. According to the requirements, dust collector, vacuum relay gauge head, vacuum soft connection pipeline, vacuum pump inlet vent valve and so on can also be added to the pipeline, thus constituting a relatively perfect high vacuum system.

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Water Ring Vacuum Pump Daily Management

The service life of the water ring vacuum pump is not only related to the quality of the pump itself, but also to its daily management. Therefore, regular management and maintenance of the water ring vacuum pump is indispensable. So, what are the daily management of water ring vacuum pump?

1. Clean and change oil regularly: Kerosene or straight-run gasoline should be used to clean the water ring vacuum pump. After washing, all parts should be wiped, dried or dried with a blower. When changing oil, 100 or 1 clean vacuum pump oil should be selected. If replaced by other oil, the vacuum degree of the pump will be seriously affected.

2. Before starting the pump, check whether the rotation direction of the motor is correct, whether the lubrication system is reliable, and whether the amount of oil is appropriate.

3. In daily operation, we should ensure that the oil temperature does not exceed 75 C, and that there is not too much noise and vibration, otherwise we should stop the machine for maintenance.

4. The connection pipeline between pump and user system should be short and thick, and the elbows should be minimized. If there are elbows, all joints should be sealed strictly to ensure no leakage.

5. When stopping the pump, the valve connected to the vacuum system should be closed first, and the exhaust valve should be opened to avoid pumping oil being sucked back into the vacuum system, and then the power supply of the motor should be cut off.

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Oil Return Treatment of Liquid Ring Vacuum Pump

In the daily operation of liquid ring vacuum pump, may encounter the phenomenon of oil return. If not handled in time, it will affect the operation or damage the function of the equipment. Here are some ways to deal with this problem. We can also make up for the check valve of the liquid ring vacuum pump is not closed properly. After shutdown, the oil level will drop quickly, and then again. Open and stop, investigate changes or disassemble to see.

The oil seals in the two pump caps of the liquid ring vacuum pump can be interchanged because of improper installation or abrasion. The flat surface of the pump cap or body can be repaired. The exhaust valve discs of the liquid ring vacuum pump are damaged and should be interchanged.

The liquid ring vacuum pump is now widely used in food, petroleum, chemical industry, pharmaceutical, metallurgical industry and electronic fields. It can also be used to pump various gases and corrosive gases without solid particles. In daily operation, regular operation of liquid ring vacuum pump is also very important.

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