Water Ring Vacuum Pump Winning by Quality

The development of water ring vacuum pump is constantly improving and expanding the practical performance of the product. Besides, its model and performance all reflect the practical performance of the product. In order to further enhance the strength of the product, promote the overall application level of the product, and enhance the application effect of all aspects with comprehensive performance strength. Upgrade, with more powerful advantages, continue to expand its application strength, to achieve the overall level of product reliability, to achieve the pioneering advantages of product quality.
On the quality assurance of enhancing the application ability of water ring vacuum pump, we should combine the embodiment of its practical effect, develop the overall application level of products with the development of efficient product application and performance strength, take product quality as the guarantee of advantages in all aspects, and speed up the driving effect of product application so as to reflect the product. The continuous advancement of application strength, with the high-efficiency application strength to further enhance the practical ability of products, reflects the continuous improvement of various aspects of the role of quality advantages.
The quality of water ring vacuum pump is very advantageous in the industry. This widely used product has played an important role in different industries. At the same time, it has accelerated the optimization and improvement of the product strength, reflecting the advantages of the product, in order to continuously promote the product strength and enhance the actual application of high. Effectiveness performance.
Screw Vacuum Pump in Solvent Recovery

Shanghai Stationery Exhibition 2019 

Basic Knowledge of Screw Vacuum Pump

Screw vacuum pump is a kind of suction and exhaust equipment which uses a pair of screw to make synchronous high-speed reverse rotation in the pump shell. It is an updated product of oil-sealed vacuum pump. It can extract gas containing a large amount of water vapor and a small amount of dust. It has been widely used in major pharmaceutical and chemical enterprises in China.
Application of Screw Vacuum Pump
After fine dynamic balance correction, the two screw rods are supported by bearings and installed in the pump housing. There is a certain gap between the screw and the screw. Therefore, when the pump works, there is no friction between them, running smoothly, low noise and no need for lubricating oil in the working chamber. Therefore, the dry screw pump can extract gas containing a large amount of water vapor and a small amount of dust with higher limit vacuum and lower power consumption. It has the advantages of energy saving and maintenance-free. It is an updated product of oil-sealed vacuum pump.
Advantages of Screw Vacuum Pump
At present, the development of various vacuum pumps is more and more affected by the vacuum applications. The general vacuum system can not meet the requirements of clean, oil-free and corrosion-resistant. Therefore, in recent years, the market demand for dry vacuum pumps is very large. The vacuum products have been updated. A large number of oil-free vacuum systems have been replaced by oil-free and clean vacuum systems. Almost every large vacuum company in foreign countries produces various types of dry vacuum pumps. Screw vacuum pumps are non-contact dry pumps. They are ideal pumps in the early 1990s. They are widely used because of their wide pumping speed range, simple and compact structure, friction-free components of the pumping chamber, long service life, low energy consumption and no oil pollution.
Because of its superior performance, dry screw vacuum unit has become the preferred vacuum acquisition equipment in microelectronics, semiconductors, pharmaceuticals, precision processing and other industries in Europe, America and Japan. On the basis of screw compressor, Japan has developed the multi-head rotor profile of vacuum pump and put it into the market very early. Several German vacuum equipment companies have gradually developed rotor profiles with equal pitch and variable pitch, and have done a lot of research on the cooling of rotor and body. In 2008, Chinese enterprises also put the production of screw vacuum pump into batch production (Zibo Dry Vacuum Pump Co., Ltd.), which has been well applied in chemical and pharmaceutical industries.
Screw Vacuum Pump for Oil and Gas Recovery

Screw Vacuum Pump for Battery Energy 

How to Measure the Rotor of Stainless Steel Vacuum Pump

Rotor is a rotating body supported by bearing. Sometimes, in order to use it better, we need to measure the rotor of stainless steel vacuum pump. What method can we adopt?
The measurement of the radial circular runout value of the rotor of stainless steel vacuum pump first places the rotor on two V-shaped iron and divides the circumference of each measuring part of the rotor into several equal parts, such as six parts. Install a dial gauge on the measuring part. The measuring head of the dial gauge should be perpendicular to the axis.
Slowly rotate the stainless steel vacuum pump rotor in the same direction, and record a reading for every equal part of rotation. After the rotor rotates for one week, each measuring point receives six readings, which are recorded in the table, and then the maximum runout value of each measuring point is calculated according to the records. The difference between the maximum reading and the minimum reading of the same measuring point is the radial circular runout value of the measuring point.
Inspection of the axial circular runout value of the rotor of stainless steel vacuum pump Impeller is mounted on the shaft to measure its axial circular runout value, mainly to ensure that the perpendicularity of the impeller end face and the axis center line meets the requirements. Use a dial to point vertically at the side of the impeller and adjust the dial pin to zero. The disc impeller rotates around a circle. The difference between the maximum reading and the minimum reading of the dial indicator is the axial circular runout of the impeller. Note: The percentile meter should be reset to zero after one week of rotor rotation. Otherwise, it indicates that there is axial movement of the shaft or loosening of the watch head, and should be eliminated. The same is true for the measurement of the axial circular runout of the balancing disc.
Lab Vacuum Pump Selection

Best vacuum pump for distillation 

No-tail Vacuum Technology for Vacuum Pump Unit

The traditional insulating cup of vacuum pump unit is made of two layers of glass inside and outside. The vacuum is pumped in the middle to insulate heat transfer. So there is an exhaust tail at the bottom of the cup gallbladder. This exhaust tail is very vulnerable to damage. Therefore, tailless vacuum technology was born. The tailless vacuum technology of vacuum pump unit is to weld the glass mouth with special technology, so there is no pointed exhaust tail to avoid it. The exhaust tail was damaged and the cup gallbladder was damaged.
At present, the stainless steel vacuum vessels sold on the market are generally divided into two kinds of products with different technology: tubular vacuum-tailed vacuum and integral vacuum-tailless vacuum. "Tailed vacuum" is a traditional technology, and "tailless vacuum" is one of the most advanced technology at home and abroad, that is, under the condition of vacuum environment, the process of exhausting, sealing and cooling of utensils is completed by computer control. The stainless steel vacuum vessel produced by this technology has the following characteristics:
High vacuum and long holding time
Because vacuum is pumped and sealed at nearly 1000 C, the vacuum degree is the same as that with tail vacuum. When the product returns to normal temperature, the vacuum degree is much higher than that with tail vacuum. Therefore, the thermal insulation effect of Sibao vacuum utensils is higher than that of QB/T 2332-97 industry standard.
Large effective capacity
Since there is no rat tail like "tail vacuum", there is no need to set up a "tail chamber", so the effective space is large. Compared with the products with the same appearance volume of "tail vacuum", the effective space of "tail-less vacuum" products is much larger.
Long service life
The "tailed vacuum" adopts the "pressure sealing technology", which can not completely guarantee the sealing in micro. The "tailless vacuum" uses the "melting sealing technology", which makes the solder melt at high temperature and seal the exhaust holes, so it can ensure long-term non-venting and non-leakage. Consumers have not yet received complaints about the vacuum heating function. Whole suction -- "tailless vacuum" equipment is a large-scale equipment with high automation, high quality and high cost. Moreover, the management and use technology is complex and difficult to master. The power consumption of single product is several times higher than that of "tailed vacuum". So at present, only a few enterprises in China have fully mastered and used this technology. However, due to the high technical level, it must become the development direction of stainless steel vacuum vessel production technology and the technical conditions for consumers to pursue products.
What vacuum pump is most suitable for your needs?

Vacuum Pumps and Blowers 

Rotary vane vacuum pumps do not have to worry about failure

Rotary vane vacuum pump is a common type of vacuum pump, such as our common 2X rotary vane vacuum pump is one of them, its structure and performance are very unique, and very good. Next, we will introduce its structural characteristics in detail. 2X rotary vane vacuum pump is bipolar structure. Its operation function is composed of high pressure stage and low pressure stage II. Its suction port is connected with vacuum vessel or vacuum equipment. During operation, a lot of gas in the vessel will be inhaled and discharged. When the equipment obtains vacuum, the high-pressure exhaust valve sheet will be closed, and the gas inhaled by the high-pressure stage will be transferred to the second stage, and then inhaled and discharged by the second stage, so that the vacuum equipment can obtain a certain vacuum. The technical parameters of the pump are 6 x 10-2 PA. According to the user's operation, it can be equipped with a vacuum booster pump, which can be used as the front pump. Because the pump's pumping force is strengthened, the front pump is pumped out successively, which can make your equipment obtain higher vacuum.
The pump is suitable for metallurgy, chemical industry, electric light source vacuum, vacuum coating, food packaging, medicine, plastic absorption, electronics, dryness and other fields.
Rotary vane vacuum pump is a kind of vacuum pump. If there are faults in the process of using, what should we do? Don't worry, we will summarize the common faults and solutions.
First, oil leakage can occur in many parts, oil leakage may be caused by these reasons, such as improper installation method, or inadequate sealing parts, or parts are damaged, there are impurities blocked, self-made rubber pad, oil resistance, but also consistent with the original shape, if the sealing surface is large, very good. If it is loose, it will leak oil.
Secondly, if the rotary vane vacuum pump does not rotate, do not immediately open the vacuum pump if you do not know what the reason is, in order to prevent the failure from aggravating, see if the hand can be turned. If you can coil, but do not rotate, to see if the coupling is bad, there are motor conditions, if not coil, or very laborious, to see the start of the pump temperature, pump oil viscosity is not high, if stopped, the pump returns to a lot of oil, we have to consider whether the oil level is too high reasons and so on.
Thirdly, the pump temperature is very high. There is a limit value of the pump temperature on the general instructions. If the limit value is exceeded, the viscosity of the pump oil will be reduced, which will affect the efficiency of its pumping and damage the rubber parts.
Above are some common problems and solutions of rotary vane vacuum pump in use.
Vacuum Pump for Vacuum Slurry Machine

Rotary vane vacuum pump in heating unit 

Ventilation of Roots Vacuum Unit

Roots vacuum unit is widely used in metallurgical, petroleum, paper, food and electronic industries. In order to make better use of it and give full play to its high efficiency, we will explain the knowledge of ventilation before using it.
1. Air is blown by convection from intake port to Roots vacuum unit. In this process, the doors and windows near the unit remain closed, forcing air to flow into the workshop by compensating the doors and windows on the side of the intake port. Air flows into the workshop in a queue and orderly way from the intake port, flows through the workshop, and is discharged from the workshop.
2. The ventilation is thorough and efficient, and the ventilation rate can be as high as 99%. Through the specific engineering design and the design of ventilation speed and wind speed according to the needs, any high-heat, harmful gases and dust smoke can be quickly discharged from the workshop. Any poor ventilation problem can be solved once and for all, and can be reached within a few seconds from the opening of the station.
3. Roots vacuum unit discharges air outwards to reduce the indoor air pressure, and the indoor air becomes thinner. The characteristics of water-ring vacuum pump form a negative pressure zone. The air flows into the room due to the compensation of air pressure difference. In the practical application of industrial plant, it is centrally installed on one side of the plant, and the air intake is on the other side of the plant.
Roots vacuum unit to do a good job of ventilation process, can reduce the loss caused by resistance, improve efficiency.
Vacuum system in press

Vacuum System in Thermal Power Plant 

Impeller of water ring vacuum pump

The working principle of water-ring vacuum pump The impeller of the water-ring vacuum pump is installed eccentrically in the pump body, and a certain amount of water is injected into the pump as working fluid before starting the water-ring vacuum pump. When the impeller rotates, water is thrown around by the impeller. Because of centrifugal force, water forms a closed water ring with approximately equal thickness, which is determined by the shape of the pump chamber. A closed crescent-shaped cavity is formed on the blade and the side plates at both ends. During the first half rotation, the volume of the closed crescent-shaped cavity gradually expands, and the gas is absorbed by the suction port located there. When the suction ends, the cavity is closed. The cavity is separated from the suction port, and the volume of the closed crescent-shaped cavity is gradually reduced and the gas is contracted during the second half rotation.
When the closed crescent-shaped cavity communicates with the exhaust port, the gas is discharged out of the pump. It can be seen that the water ring vacuum pump relies on the volume change of the pump chamber to achieve aspiration, compression and exhaust. When the working fluid carries the gas sucked from the condenser and discharges from the pump body to the steam-water separator, under the combined action of positive pressure in the separator and negative pressure in the vacuum pump body, the working fluid flows out of the steam-water separator. After cooling by a cooler installed horizontally on one side of the pump body, the working fluid is divided into two channels, which are directly supplemented to the pump body as the working fluid, and condensated through the suction pipe of the pump. The exhausted gas in the steam turbine is cooled and cooled, and enters the pump with the exhausted gas as working fluid. After working in the pump body, it is discharged into the steam-water separator, thus reciprocating cycle.
Vacuum pump for vacuum crystallization

Vacuum pump for refrigeration 

What do you know about water ring vacuum pump?

Water-ring vacuum pump (water-ring pump) is actually 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 air 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 water ring vacuum pump, which will be used as a self-suction pump at the very beginning. In the following circumstances, it will be gradually used in petroleum, chemical industry, and in many industrial sectors, such as machinery, mining and light industry, medicine and food.
Water ring vacuum pump
In fact, many processes near industrial production, which are more common, refer to vacuum filtration, and there will be vacuum water diversion, vacuum feeding, and then, including vacuum evaporation, vacuum concentration, vacuum moisture regain and vacuum degassing equipment, the water ring vacuum pump itself will be widely used.
Next, we should pay attention to the rapid development of vacuum technology. Water ring vacuum pump has always been paid attention to in terms of rough vacuum acquisition. Since the gas compression near the water ring pump is isothermal to a large extent, 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.
Ultimately, it will be directly equipped with a suitable amount of water as its working fluid beside the water ring vacuum pump body. Moreover, as far as the impeller is concerned, that is, when the impeller rotates clockwise in the direction indicated by the impeller, the water will actually be thrown around directly by the impeller. Because of the effect of centrifugal force on the water ring vacuum pump, it will form a closed structure.

Vacuum Pump in Vacuum Furnace Unit
Vacuum system in glass transportation

Problems of Liquid Ring Vacuum Pump without Working Fluid

In front of us, we shared a lot of solutions about the problems of liquid ring vacuum pump. We made a specific analysis of the problems of component damage, vacuum degree can not reach and so on. It may be helpful to some users in the application. Today, we can make a brief summary of the problems that are easy to appear when there is no working fluid in the pump body. We can also according to different fault needles. The treatment method is used for the daily protection of the pump.
The working medium of liquid ring vacuum pump is an indispensable part. If the working fluid volume of the vacuum pump is not up to or has been used up, the impact on the pump may be great. Often this simple and minor problem may become a major problem affecting the production, making the vacuum in the pump body can not meet the planning requirements, and the exhaust gas is also subject to the corresponding constraints, which will give the daily life. Loss of production operations.
For the presentation of this situation, users should calmly face, determine the reasons why the liquid ring vacuum pump will present the situation, inquire about the situation and make a judgment. If you can't identify the situation by yourself, you should contact the manufacturer in time to prevent the equipment from violating the rules and destroying the equipment that can work normally. The specific treatment method is to check whether the pump body and the import pipe have been injected. Full working fluid, if it does not meet the injection requirements, should add working fluid in time, so that the vacuum pump operation is normal, so that the normal production operation will not be delayed.
Vacuum pump for surface treatment technology

Vacuum pump for composite materials 

Technical Reform of Water Ring Vacuum Pump

Technical Exploration and Improvement of Water Ring Vacuum Pump in Use
1. Establishment of renovation plan
Considering the cost of the retrofit, two 2YK water ring vacuum pumps were used in the retrofitted vacuum transportation system. Because the first touch of this type of equipment, the performance of 2YK water ring vacuum pump is insufficient, coupled with the long time shelf of the pump, the overflow parts show rust, and because there is no specific quantitative specification for smoke and dust. In operation, the transportation power is low, forming a backlog of smoke and dust, and even forming a caking or powder fire, which brings great labor intensity. When the situation is severe, the workers show the phenomenon of exclusion. On the one hand, they adopt rehabilitation to clear the ash spiral to send the ash, so as to ensure normal production. On the one hand, actively look for reasons and solutions. Arrange relevant personnel to tackle key problems, and ultimately think that the pre-water ring vacuum pump bag filter has a higher orientation, unreasonable pipeline equipment, and pipeline diameter is too large. Combined with the actual situation of the site, the diameter and direction of the pipeline have been changed. After the transformation, the transportation function has been greatly improved.
2. Work condition after transformation
Although certain effects have been achieved by changing the diameter and direction of the pipeline, the normal pneumatic transportation is still unsatisfactory. In order to improve the site environment and reduce power consumption, it was decided to replace two energy-saving SK120 water ring vacuum pumps. After the new pumping device, it can completely satisfy the need of production. But through less than half a year's work, the new pump has the following phenomena.
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1) The fittings are damaged. The working sound is abnormal, and the vacuum degree is also declining.
2) All the flow surfaces of the pump body are corroded and worn severely, and the front and rear side covers show holes.
3) Inlet, cylinder and bottom leakage of gas-water separator.
4) In the work of vacuum pump, the V-belt has large amplitude and severe wear and tear, and announces that the harsh voice has brought many impacts and damages to the post operators.
Vacuum Pump for Waste Gas Compression

Vacuum pump for vacuum cooling 

Treatment Method for Wear of Water Ring Vacuum Pump Parts

In the long-term operation of water-ring vacuum pump, the wear of parts will be formed, and then the vacuum degree and service life of the pump will be affected. In view of this wear phenomenon, vacuum pump factory technicians provide you with several parts wear treatment methods:
(1) In view of the corrosion of water ring vacuum pump body pipes, we changed the general pipes into wear-resistant and corrosion-resistant stainless steel pipes, which basically eliminated the damage of pipes.
Water ring vacuum pump
(2) In the early stage, we made surfacing welding modification on the wear areas of front and rear distributors, side covers and inner walls of pump housing. According to the deep and long wear areas (along the circumferential direction), deep wear areas of distributors (between suction and compressor), shallow wear areas (at the end) of side covers have different corrosion degrees and different conditions, the welding methods used are also different. The final welding height is 1-2 mm higher than that in practice. It is planed and smoothed with an angular polisher.
After revision and reassembly, the vacuum degree of the water ring pump increases when it runs again, and the effect is remarkable. After running for 3 months, the distributor after turning over found that only a small amount of wear and tear was needed at the surfacing site.
(3) In addition to surfacing modification of worn parts, manufacturers are required to add wear-resistant coatings (epoxy wear-resistant ceramics) on all flow surfaces of the pump body with a spraying thickness of 1 mm. Because the acid resistance, alkali resistance and wear resistance of epoxy wear-resistant ceramics are superior to those of cast iron, the service life of epoxy wear-resistant ceramics is long. After nearly half a year of operation, after turning over the distributor, we found that only a small amount of wear and tear on the flow surface of the pump body had a significant effect.
Vacuum Pump for Smoke Purification System

Vacuum pump for methane extraction