How many maintenance methods of vacuum pump?

The vacuum pump starts the winding and transpiration system respectively to investigate whether the reading of the vacuum gauge climbs after a short decline, which can preliminarily judge the direction of the internal leakage point. The internal leakage mostly occurs on the equipment with water cooling points. No doubt is found in the external leakage inspection, but there are the following phenomena: the pumping speed of the mechanical pump is significantly low, the indication value of the vacuum gauge is low, and the mechanical pump oil emulsifies quickly.
The iron-based parts in the vacuum chamber are significantly rusted. With the above conditions, it is basically possible to guess the internal leakage. First clean the cavity, then pass the cooling water, and carefully check whether the water pipeline has wet points. The wet points are the leakage points. The ionization tube can be used to detect the leakage by being sensitive to some gases under high vacuum, such as or ethanol, Use a medical syringe to spray or ethanol into the suspected area.
Combined with the pointer vacuum gauge, the pointer of the ionization gauge will swing significantly when it is sprayed to the leakage point. In this way, you must be patient to detect the leakage. Wait until the indication of the ionization gauge is stable, that is, the extraction capacity and leakage rate of the vacuum unit are balanced, then erupt, repeat several times, recognize the leakage point, and pay attention to several links in repair, disassembly, cleaning, inspection and installation, It is important that vacuum equipment, large or small, be attributed to precision mechanical equipment.

How to confirm the oil level of 2X-70A rotary vane vacuum pump

The main causes of high working noise of vacuum pump

Vacuum pump is one of the major noise sources affecting vehicle idle speed noise. In order to suppress this noise source and reduce the working noise of vacuum pump, the mounting bracket and rubber pad are abstracted as the spring series model of bracket vibration isolation rubber block bracket, and the influence of the vibration isolation system composed of mounting bracket and vibration reduction rubber block on the vibration transmission of vacuum pump during operation is further analyzed, When the vacuum pump works, the mounting bracket produces strong high-frequency vibration, and the vibration of the bracket causes large structural noise at the body connection, which is the main reason for the large working noise of the vacuum pump
Secondly, the sealing condition of the whole vehicle is poor. After checking the sealing performance of the whole vehicle, it is found that:
1) There are no sound insulation and sealing measures for the engine compartment cover between the extended range engine compartment and the cab, and the noise generated during the operation of the vacuum pump is directly transmitted to the vehicle through the air;
2) There are many useless holes in the front compartment, middle passage, upper part of wheel side motor of rear axle and seat floor in the vehicle, which are not filled. In addition, the openings of steering gear, heating and air conditioning in passenger area and front wall harness are not sealed, and the vehicle is directly connected with the outside world;
3) The installation clearance between the cab door and the sliding door in the middle of the carriage is large, and the door is still connected with the outside after being closed. As shown in Figure 7, the poor sealing of the whole vehicle will reduce the sound insulation effect of the vehicle, and too much noise generated during the operation of the vacuum pump will be transmitted to the vehicle through the air, resulting in large interior noise

2BE series liquid ring vacuum pump in inlet/outlet compensator

Is the vacuum pump after maintenance so different?

At present, some customers are not very clear about the maintenance of the vacuum pump, mainly focusing on the simple replacement of three filters and one oil, thus ignoring other maintenance. The efficient and energy-saving operation of the vacuum pump provides a strong guarantee for production and is inseparable from correct maintenance. Therefore, in addition to the normal maintenance of three filters and one oil, attention should also be paid to the maintenance of the motor and valve parts of the vacuum pump.
#Maintenance of motor
The motor runs every 4000 hours or once a year, whichever comes first, and special high-temperature grease needs to be added (Atlas Copco motor high-temperature grease part No. 2901033803). The motor speed of the vacuum pump is very high. For a commonly used pump, the Z high speed of GHS 900 VSD + is close to 5600 rpm, which is nearly twice as fast as that of the air compressor with the same power of 22KW. Therefore, it is necessary to pay attention to the lubrication of motor bearings. If the motor grease with the wrong model is not added for a long time, it is easy to cause poor lubrication of the motor and damage the motor in serious cases.
The bearing of the vacuum pump on the customer's site was damaged and the motor was burnt out due to neglect of the maintenance of the motor. It is suggested that the motor grease filling gun Z of the vacuum pump should be dedicated to avoid mixing with the filling gun used by other different equipment using different types of motor grease.
In addition, the motor needs to be overhauled every 24000 hours to avoid sudden damage to the motor and greater loss due to the service life of the motor bearing.
#Maintenance of temperature control valve
The main function of the temperature control valve is to control the oil temperature and prevent the oil temperature from being too high and too low. If the oil temperature is too low, it will not only affect the lubrication efficiency of the system, but also have the risk of condensate precipitation, which will accelerate the emulsification of vacuum pump lubricating oil and bring risks to the normal operation of the equipment. If the oil temperature is too high, it will accelerate the aging and deterioration of the lubricating oil of the vacuum pump, increase the oil change frequency of customers, bring more maintenance costs and affect the service life of the equipment.

Explosion proof and high temperature resistant vacuum unit

Is there a relationship between the price and service life of oil-free vacuum pump?

When shopping, ordinary consumers often feel that the price is higher and the service life will be longer. In a sense, the service cycle of purchasing mechanical products has a certain relationship with the price. Especially for products with guaranteed after-sales service, the service life will be relatively long. Of course, in the process of consumer choice, in addition to the price, don't easily ignore some principled things. After all, ignoring the principle will not help their choice much.
Is there a relationship between the price and service life of oil-free vacuum pump? If the price is relatively high under the same conditions, the overall quality should be relatively good. When the quality is good, the service life will be relatively prolonged. If the improper use in the process of use leads to bad effects, it will eventually affect the service life. It is suggested that consumers should not easily ignore some principled things. After all, their own methods will also play a certain role.
No consumer is completely indifferent to the price when buying products. Even if they have a large budget, they certainly want to choose products with absolute cost performance. The price of oil-free vacuum pump is affected by many factors. When choosing, you must choose products with a relatively long service life. After all, if you analyze them from a long-term perspective, it will be very helpful for your own application. There are also some relatively cheap products in the market, but they will not have a long service life after purchase, and even need to be repaired after use for a period of time.
In the process of purchasing products, many detailed problems should not be easily ignored, and the final judgment should not be affected by a little cost. There will be a certain correlation between the service life and price of the product, but only by truly comparing the goods, it is possible to choose the most appropriate product. When comparing, we should adhere to a very rational comparison standard, and we can't rely solely on our own subjective assumptions. Many problems only know what's going on after real experience. It is suggested that consumers must adhere to relatively rational purchase thinking when choosing.

What are the applications of roots vacuum units in medicine? 

The development of vacuum pump industry has been stable for a long time

China's apparent consumption of vacuum pumps has reached a level close to 1 / 4 of the global total consumption, and the per capita consumption of stainless steel has reached 3.4kg, leaping to the forefront of developing countries. Stainless steel pump has excellent characteristics such as corrosion resistance, high strength, portability and long service life. In recent years, stainless steel pumps are widely used in shipbuilding, rail vehicles and other transportation industries. Let's get to know each other.
With the development of machinery manufacturing industry, stainless steel pump will have a broader application prospect. However, the growth rate of consumption has gradually slowed down, from the rapid development stage with an average annual growth rate of more than 30% to the steady development stage with a current growth rate of 6.43%.
Although the development of the vacuum pump industry has been relatively stable for a long time, its competition is still not standardized. There are mainly the following problems: first, some operators buy Valves with manufacturer's name and address, or print the certificate of well-known manufacturers, which misleads consumers and seriously endangers the reputation of qualified valve enterprises. Second, some operators carry out secondary sales after refurbishing and repainting waste valves, which brings serious potential safety hazards to the project quality and seriously disrupts the order of the valve market.
I believe many customers already know about the vacuum pump. If there is anything you don't know, you can learn from our website at any time, or call our hotline to learn more about it. We will explain it clearly for you.

2BE1-153 Liquid Ring Vacuum Pump used in Plastic extrusion industry