vacuum equipment

The disassembly of water ring vacuum pump is divided into partial disassembly and complete disassembly. The water in the pump shall be completely released from the drain hole and all gaskets shall be removed before disassembly. Care should be taken in handling this step. In case of damage, new gaskets of the same thickness should be replaced during assembly. Note that disassembly begins at the end of the never coupling. The water ring vacuum pump is removed in the following order. First, loosen and remove the bearing cover. Step 2, loosen the rolling bearing, use the hook wrench to unscrew the round nut and remove the nut on the packing gland. Step 3: loosen the bearing frame by the side of the left cover, and rotate two dismounting screws to remove the bearing and bearing frame from the shaft. Step 4: disconnect the inlet pipe and pipe on the side cover, and loosen the connecting screw between the pump body and the side cover and the double-headed bolt outside the pump foot. Fifth

Water ring vacuum pump has the characteristics of vacuum transportation: compact structure, reliable balance and uniform flow. In chemical production, it is often used to transport or pump inflammable, explosive and corrosive gases. Water ring vacuum pump because impeller mixing liquid, loss of energy, so its efficiency is very low. Vacuum pump is widely used, can be used in petroleum, chemical industry, machinery, mining and many other industrial sectors, it can also be used for conveying vacuum, I do not know if you know its characteristics of conveying vacuum, the following is to introduce the characteristics of vacuum pump for vacuum transport: 1, high efficiency, equipment no return transport, other means of transport have the transport wrist are free return defect, and the transport medium is air, only in the terminal into the atmosphere, in the process of transport, the inlet can be continuous feeding, complete continuous transport. 2, the equipment has simple structure, m

I think many friends are very interested in the excitation control of water ring vacuum pump, this is really a key and difficult work, next I will introduce some relevant content, you can read it carefully. 1. Open-loop simulation test for closed loop regulation of potential (or voltage). The simulation mode gives the armature terminal voltage and armature loop current, and sets the output limiting value, excitation current and feedback loop parameters of the potential (voltage) regulator. 2, excitation current (or flux) regulation closed-loop control of the step response to adjust the dynamic characteristics. The dynamic characteristic indexes of k should be measured and adjusted respectively in the full magnetic working area, near the starting point of weak magnetic field and the weak magnetic working area to meet the design requirements. 3. The excitation loop of the water ring vacuum pump is connected to the power supply to check and adjust the preset parameters, including th

1, water ring vacuum pump is a crude vacuum pump, by the pump body, impeller, suction and exhaust disc, water in the pump body wall water ring, exhaust port, suction port, auxiliary exhaust valve, etc. About the two-stage pump is 0.133 ~ 0.665kPa. Water ring pump can also be used as a compressor, it belongs to the low-pressure compressor, its pressure range is (1 ~ 2)X105Pa table pressure 2. The gas enters into the water ring pump through the valve in the pipeline, and then is discharged into the air and water separator through the air guide bend, and is discharged through the exhaust pipe of the air and water separator. As tightening machine is unavailable, the tightening machine discharge of air water mixture in the gas water separation in the separation, gas through the valve walked up to the system of tight gas demand, while water in gas water separation device, for the water level adhere to certain gets water separation device is equipped with automatic water switch, when th

In this paper, a new kind of water-based film adhesive, applied in the vacuum aluminum plating pet composite glass paper production process, the printing plant shows that the adhesive has a fast drying speed, extrusion compound process is not easy to blister, flat, smooth film surface rubber good transparency, no yellowing, had no adverse effect on printing ink and other characteristics, is an ideal water film adhesive. The emulsion copolymerization product of acrylate and vinyl acetate, the glass transition temperature is lower than 0e, the production process is simple, no need to add viscosifier and other modifiers, the ph value is nearly neutral, no corrosion to the cots. The adhesive can also be used for other laminated packaging materials, such as wine packaging box paper, laminated paper bag, printing laminated cover paper manufacturing. C vinegar vacuum aluminum plating film adhesive preparation principle of vacuum aluminum plating pet film with very smooth surfa

Water ring vacuum pump works stably and reliably with simple operation and convenient maintenance. Although it looks light, it can be used in life. Below by small make up for you to introduce it! 1. Vacuum filtration (chemical filtration plant, chemical processing plant, iron ore plant, mining industry, phosphate fertilizer plant, paper mill, poultry processing plant, coal preparation plant) 2. Pump diversion (waterworks) 3. Steam recovery (distiller, loading station) 4. Vacuum distillation (milk factory, food factory, chemical factory, pulp factory) 5. Condenser tank refill (power station) 6. Vacuum disinfection (hospital, infirmary, laboratory) 7. Drying (chemical, pharmaceutical manufacturing) The above is small make up for you to introduce the main application areas of water ring vacuum pump, if you want to know more about the water ring vacuum pump knowledge, welcome to call our company's service hotline, we will be happy to serve you! Rotary vane vacuum mec

As anyone who knows about the central vacuum pump will know, the reason why the rotary vane vacuum pump has a high vacuum degree is that the clearance between the rotary vane and the rotor is very accurate. If the rotary vane is worn, it will definitely have a great impact on the performance of the rotary vane vacuum pump. The performance of rotary vane vacuum pump is better, uniform pumping, low noise, less power consumption. However, after long time use, due to the wear of the rotary blade, the sealing performance will decline, so that the amount of air and vacuum will be greatly reduced. What is the cause of wear and tear? (1) vacuum pump into the dirty or hard solid particles, a long time with the rotary disc friction collision, resulting in the damage of the rotary disc; (2) in addition to the above reasons, the normal wear of the spiral is also a very important reason, when the vacuum pump oil emulsification will increase the wear of the spiral; How to repair the w

As can be seen from the formula S=Q/P1 of the vacuum pump pumping rate, when the vacuum system leakage rate Q is constant, the effective pumping rate S of the mechanical pump is inversely proportional to the vacuum degree P1 of the pre-water ring vacuum pump that needs to be achieved. The smaller P1 is, the higher the effective pumping rate of mechanical pump is required; If the value of P1 is greater than the actual value, there will be excess vacuum, which will result in the waste of the effective pumping rate of the mechanical pump. From S=Q/P1, it can be concluded that P1=Q/S. From this equation, it can be seen that the vacuum degree P1 required for production can be used as the regulating quantity. In this way, a P0 value can be set according to the production condition, and the frequency of the frequency converter can be adjusted by PID control, so as to adjust the effective pumping rate of the mechanical pump to achieve the purpose of energy saving and consumption

Low vacuum equipment such as vacuum transport, vacuum impregnation, vacuum filtration, vacuum monotone, vacuum degassing (steel disposal) begged with high working pressure, large volume of low vacuum pump pumping Gas unit, such as reciprocating vacuum pump, oil seal vacuum pump, water vapor radiating pump, water ring pump, roots pump, etc. Low vacuum pumping unit used Still need basis to be pumped gas clean degree, humidity or other special beg, equipment is necessary dust remover, drab can wait for a part. Water vapor in the process of condensation will condense into droplets, and mixed with the pump to form a suspension, not only will make the vacuum drop, but also can make the pump chamber and rotor rust, damage the sealing surface, so that the pump Reduced ultimate vacuum. Therefore, it is important to avoid water vapor on the mechanical pump pollution. Ways to avoid it: (1) choose oil seal mechanical pump with gas ballast equipment; (2) oil loading separator, centrifugal s

I. operation and maintenance of rotary vane vacuum pump 1. Start of pump: check whether the cooling water of water cooling pump is connected before starting. When the ambient temperature is low, the pulley can be moved by hand to discharge the oil in the pump chamber into the oil tank. Then press the motor button to send power, pay attention to the direction of the power supply is connected to the wrong, the pump rotation direction is correct. 2. Precautions for pump operation: check whether the pump oil quantity is near the oil mark line; Do not open the valve of the pumping system too fast to prevent large amount of oil injection; Pay attention to the abnormal noise and impact sound during operation, pay attention to the high oil temperature rise of the pump, stop the pump immediately when there is local overheating, to prevent stuck pump or wear. 3. Matters needing attention when stopping the pump: air must be released from the pump inlet when stopping the pump (generally, all un

Water ring vacuum pump, especially large water ring vacuum pump, its value is tens of thousands of less value, more value of hundreds of thousands, and as the only friction seal rope assembly, design and installation, the shaft sleeve plays the following role: 1, keep the shaft without wear, the shaft sleeve is generally made of wear resistant alloy, which is characterized by wear resistance, high hardness, smooth surface, no rust, so protect shaft wear Two, because of the characteristics of the shaft sleeve, to ensure that the sealing rope wear less, extend the life of the sealing rope Three, to ensure that a longer period of downtime, not due to rust and cause the rotor stuck, unable to move Four, convenient maintenance, reduce maintenance costs And at present many manufacturer use cast iron to pledge to make axle sleeve character to reduce cost, lose the original idea of axle sleeve completely, have no effect at all roots blowers for industrial Liquid ring pump v

Working principle of 2BV water ring vacuum pump When the impeller of 2BV water ring vacuum pump rotates against the market direction, water is thrown around by the impeller. Due to the effect of centrifugal force, water forms a closed ring of approximately equal thickness depending on the shape of the pump chamber. The inner surface of the lower part of the water ring is just tangent to the impeller box, and the inner surface of the upper part of the water ring is just in contact with the blade tip (in fact, the blade has a certain insertion depth in the water ring). At this time, a crescent space is formed between the impeller shell and the inner interface of the water ring, which is divided into several small cavities equal to the number of blades by the impeller blades of 2BV water ring vacuum pump. If the bottom of the water ring vacuum pump impeller with 2 bv 0 ℃ as the starting point, so in front of the rotating impeller 180 ℃ when the small cavity volume changes from small

No matter what kind of equipment, it is necessary to do a good job in its maintenance, especially for high-quality equipment such as water ring vacuum pump, in order to extend its service life, do a good job in daily maintenance work, so as to be used many times in the future: 1, in the normal work of the water ring vacuum pump but also regularly compressed packing, if the packing can not guarantee the required sealing performance due to wear, should be replaced by a new packing. If a mechanical seal is used and leakage is found, check whether the dynamic and static ring of the mechanical seal is damaged or the auxiliary seal is aged. If the above situation occurs, new parts shall be replaced. 2. In case of special sound, the pressure plate on the two end caps can be removed to check whether the two end faces of the impeller are grinded with the distributor and whether the exhaust valve plate is normal. 3, in the normal work should pay attention to check the working condition a

Water ring vacuum pump is widely used in various production fields. Good protection can not only ensure the safe operation of vacuum pump but also extend the service life of vacuum pump. So how to protect the water ring vacuum pump. The vacuum pump system manufacturer - the cayman vacuum pump shares with us the vacuum pump protection method. Water ring vacuum pump operating protection 1. Before the water ring vacuum pump is started, check whether the rotation direction of the motor is consistent with that of the pump. Bearing work, smooth whether normal. And check the packing pressure is appropriate, packing can not be pressed too tight. Normally compressed packing allows water to drip out of the pump. Take the oil-soaked asbestos rope as the material, and then from the cooling pipe on the pump (connected to the screw hole (16) on the side of the pump body), poured into the cooling water, there is a water separator from the water separator poured into, and check whether the

I don't know what type of vacuum pump you want to maintain, I can provide oil lubrication vacuum pump maintenance information here! For your reference! Daily maintenance of oil-lubricated rotary vane vacuum pump is described as follows: 1. Check the operating environment of the pump to avoid foreign matters and sundries falling on the pump. 2. Before starting up, check whether the oil level meets the requirements of starting up. If the pump oil is not enough, add it and make sure it is at the normal oil level. 3. Pay attention to starting and running sound and temperature rise. 4. Check the exhaust pressure after starting the system for 15 minutes, and check whether there is oil injection at the exhaust port. 5. In the case of proper moisture content in the operating medium, the pump shall be started 30 minutes before the system starting and shut down 30 minutes after the system closing. Note: never mix different brands of vacuum pump oil in the oil tank Cycle maintenance