博文

目前显示的是 八月, 2019的博文

Roots piston vacuum unit

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Dry scroll vacuum pumps

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How to Adjust Clearance in Vacuum Pump Maintenance

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Vacuum pump maintenance is to repair the vacuum pump, to solve the damaged parts or problems thoroughly, while replacing conventional consumables. Vacuum pump maintenance is the most important gap adjustment. The adjustment of clearance is aimed at adjusting the distance between the rotor and the cylinder when assembling the vacuum pump cylinder, which is generally in the range of 0.1-0.5 wires. Correct adjustment of clearance is conducive to prolonging the service life of the Nassim vacuum pump and effectively reducing the unconventional friction between the blade of the Nassim vacuum pump and the cylinder. Generally speaking, vacuum pump vacuum is not high, noise, oil leakage, smoke injection are related to vacuum pump clearance, clearance is also one of the core technology of Nassim vacuum pump. How to adjust the gap? The adjustment of clearance is to adjust the distance between the rotor and the cylinder, not between the rotor and the end cover. Each vacuum pump cyli

How to use and maintain the vacuum pump filter element

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In fact, the imported vacuum pump filter element is a filter device in the vacuum pump. In this respect, it is also an important working part of the filter. Next, in terms of the filter effect, it mainly depends on the performance of the filter element. In terms of its main form of filtering in operation, there will be more. First of all, it's going to include an intake filter element, and in that sense it's going to go up to a large extent and in fact it's going to be very effective in preventing solids and their fine ash from being sucked into the vacuum pump. In this way, to a large extent, it will directly reduce the mechanical wear phenomenon, in this way, it can improve the operation of a reliable performance. While we extend the life of the pump, it effectively protects the system itself. In terms of the vacuum pump filter element, it actually includes the exhaust filter element. In terms of its exhaust resistance, dust capacity and oil and gas separ

Maintenance of Water Ring Vacuum Pump

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Water ring vacuum pump is a kind of vacuum equipment which can produce vacuum, but it will be used wherever vacuum is needed. How to maintain it becomes a routine maintenance, what are its maintenance methods? 1. Check the loosening of pipeline and joint. Turn the pump by hand to see if it is flexible. 2. Add bearing lubricating oil to the bearing body, observe the oil level should be at the midline of the oil mark, and the lubricating oil should be replaced or supplemented in time. 3. Turn down the diversion bolt of the pump body of the water ring vacuum pump and pour the diversion water or slurry. 4. Close gate valves and outlet pressure gauges and import vacuum gauges. 5. Point the motor to see if the motor steering is correct. 6. Turn on the motor. When the motor is in normal operation, open the outlet pressure gauge and the import water ring vacuum pump. After the appropriate pressure is shown, gradually open the gate valve and check the load of the motor. 7. Contr

Inspection and Maintenance of Water Ring Pump

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(1) In normal work, attention should be paid to checking the work and lubrication of bearings. It is advisable that the temperature (bearing and outer circle) of bearings should be 15-20 degrees higher than the ambient temperature. The highest temperature should not exceed 30-35 degrees, that is to say, the actual temperature of outer circle of bearing rack should not exceed 55-60 degrees C. The bearings in normal work should be oiled 3-4 degrees per year. At least once a year, the bearings are cleaned and the lubricants are replaced. (2) In normal work, the packing should be pressed regularly. If the packing can not guarantee the required sealing performance due to wear, the new packing should be replaced. If mechanical seals are used and leakage is found, the dynamic and static rings of mechanical seals should be checked for damage or aging of auxiliary seals. If the above situation occurs, new parts need to be replaced. (3) When special sound occurs, the pressure plat

Vacuum pump smoke and fuel injection

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Next, I will analyze and deal with the phenomenon of smoking and fuel injection for everyone. 1. Smoke: If the vacuum pump has just started to run, there is a smoke phenomenon, which is normal. If it is smoked for a long time, it is not normal. This means that the outside of the air inlet of the vacuum pump, including the repair of pipes, valves and containers. After the leak detection, the smoke will end. 2. Injection: This indicates that there are a large number of leaks outside the inlet, and even the inlet is exposed to the atmosphere. At this time, we need to seal the air inlet of the vacuum pump to make the vacuum pump run. If there is no fuel injection, it indicates that there is a leak; there is damage to the exhaust valve, check whether the exhaust valve is damaged, and replace the bad exhaust valve. . vacuum pump replacement vacuum pump in Palm Oil Industry Liquid ring vacuum pump process What is a Liquid Ring Vacuum Pump? 

Inspection methods of hidden safety hazards of water ring vacuum pump

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In daily use, it is important for product quality. Water ring vacuum pump must be shut down in a planned way. After that, we should also pay attention to the following circumstances in accordance with the management regulations, when the pump shutdown is required, the person in charge of the pump shutdown unit must pay attention to four hours in advance for the relevant shutdown approval procedures; point of view, when the power department at a higher level, the company or the line maintenance failure needs to shut down. In addition, when the line in the mine fails, it will be shut down due to maintenance; when the water ring vacuum pump fails or needs to be shut down due to regular switching; when the circulating pool needs to replace the water source; when the welding of nearby drainage pipeline and the replacement and installation of other ancillary devices; for this reason, the vacuum pump needs to be shut down because of other reasons. When special circumstances or

Rules for operation of Roots vane vacuum pump unit

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Rules for operation of general wet Roots vane vacuum pump units General Roots vacuum unit operation in accordance with the relevant rules of dry Roots vacuum pump, but also need to pay attention to the following related matters; 1) Pump should be run empty before use to check whether the rotating parts are flexible, whether there is blocking phenomenon, whether the rotation direction is correct, whether there are abnormal noise and vibration in the pump. Before starting, pull the pulley by hand, check whether there is any obstacle, and inject proper amount of clean water, and inject the prescribed grease into the gear box. Connect to the power supply, click a few times first, observe whether the situation is normal, and then measure the current after starting. If it is found that there is no indication on the vacuum gauge or the reading is very small, it is necessary to check whether the valves on the gas-water separator are sealed, whether the valves on the suction pipe

How to prevent the pollution of rotary vane vacuum pump

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Due to the self-compensating clearance adjustment inherent in the pump mechanism, it is not particularly sensitive to small mechanism damage. In most designs, the selected sliding bearings are less sensitive to dust than ball bearings. Once the dust particles are separated from the oil by gravity, a deposit is formed in the oil pool, which does not participate in the oil cycle until it is removed. These particles can be filtered with oil through a filter, but it does not seem to be worth it. If the pollution is serious and the filter replacement is too complicated, it is not as easy as oil replacement. Before dust particles enter the pump, it is best to prevent them in a treatable position. Dry filters and oil traps are most effective. The method of protection selected should depend on the volume to be treated, the size of the dust particles and the allowable pressure drop. In the case of abrasive dust particles, the surface hardness of pump parts should be increased to

The influence of pump inversion

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64. How to deal with screw pump inversion after bar stopping Answer: When finding reversal, shut off the outlet valve of the pump and check the electric power carefully. Machine, pump bearing temperature and mechanical seal diaphragm pump leakage, if no abnormal situation can be done well Prepare to start the pump next time. 65. What is the effect of reverse gear pump rotation on beam occurrence 7 Moss: The following problems may occur when the centrifugal pump reverses: (1) Because of the high impulse when reversing, the tight solid of the threaded connection is loosened. It will cause damage to rotor parts. (2) Because of the loss of resistance in the pump, the temperature of the pump body will rise. (3) Because the oil supply force of bearing bush is fixed, the reverse clock Bush is pressurized. The surface lubrication condition deteriorated and the bearing bush was easy to burn. 66. When the weeping water elephant is in normal operation, the electric shear suddenly

Single screw vacuum pump five sealed basic components

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Functions and requirements of the five main sealing elements of a single screw vacuum pump: End seal pair (static and moving ring). The function of the sealing pair of the end face is to make the sealing surface tightly fit and prevent the leakage of medium. It requires the static and moving ring to have good wear resistance, the moving ring can move flexibly in axial direction, automatically compensate the wear of sealing surface, make it fit well with the static ring; The static ring is buoyant and ACTS as a buffer. Therefore, the sealing surface requires good processing quality to ensure the sealing pair has good fitting performance. Elastic element (spring, bellows). It mainly plays the role of compensation and buffering, the requirement always maintain enough elasticity to overcome the inertia of the auxiliary seal, the friction of the transmission part and the moving ring, etc., to ensure the good fitting of the sealing pair of the end face and the tracking of th

Dry Scroll Pumps

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What are the practical methods of dry screw vacuum pump in industry?

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I. Dry Screw Vacuum Pump for Solvent Recovery in Pharmaceutical Industry The bulk drug selected from the solvent crystallization method is usually filtered after crystallization, washing and vacuum drying. The moisture content of materials is usually 20% to 200%. Solvents in wet materials are usually flammable, explosive, toxic and harmful media, which are vacuum-pumped during drilling. Roots-liquid ring vacuum pump is used in traditional wet vacuum system. Sealant for liquid seal pump dissolves or absorbs some organic solvents during operation, and separates waste gas and high concentration organic waste liquid in vapor-liquid separator. Some of them need to be addressed. This will not only not completely recover this part of the solvent, but also increase the company's operating costs, bringing health, safety and environmental protection to the battle; dry vacuum condensation system can discharge organic solvents in the boring process. Because there is no other pr