vacuum equipment

Always committed to the upgrading and transformation of liangbang pump and valve enterprises, Yongjia is the early origin of China's liangbang pump and valve industry. In the past, factors such as single product structure, small enterprise scale, no brand, poor information, and weak technical innovation ability have become the bottleneck restricting the rapid development of liangbang pump valve industry. "After more than 20 years of development, Yongjia liangbang pump valve gradually improves its quality in all aspects, and strives to seek new breakthroughs in the development of liangbang pump valve industry. At present, liangbang pump and valve industry production and manufacturing base has been established, which integrates product manufacturing, technological innovation, quality inspection, enterprise gathering and talent training. It has participated in the construction of several key projects, which has changed the overall pattern of China's liangbang pum...

What sealing requirements do vacuum pumps have to prevent oil leakage People who have used water ring vacuum pump know that the sealing of the equipment is a very important part of the process of use, must not be careless. If the sealing is done well, the vacuum drop can be avoided during use. If the seal work is perfunctory, then at some time the equipment will have a failure problem, resulting in its damage, not normal use, affecting our work efficiency. Under its working pressure, the vacuum pump should drain all the gas produced in the process of vacuum equipment in time. Correct combination of vacuum pumps. Because the vacuum pump has selective pumping, therefore, sometimes choose a pump can not meet the requirements of pumping, need several kinds of pump combination, complement each other to meet the requirements of pumping. For example, titanium sublimation pump has a high pumping speed on hydrogen, but cannot pump helium, while triode sputtering ion pump, (or di...

First of all, in terms of the daily maintenance of the complete vacuum pump equipment, for the operators, to a large extent, they should be familiar with different types of instruments, pumps and various parts of the complete vacuum pump equipment. In fact, we should pay attention to reading carefully and understand different kinds of instructions. Then, the cooling water pressure on the whole set of vacuum pump equipment should be kept between 0.1 and 0.2 MPa directly. Next, we should pay attention to the outlet water temperature of the vacuum pump which should be kept at ≤ 45 ℃. For its own compressed air pressure, in fact, it should be between 0.4 and 0.5 MPa. Moreover, before starting up each furnace of the complete vacuum pump equipment, we should pay attention to check the capacity of the protective gas cylinder. In this regard, to a large extent, it can avoid insufficient gas filling and replace the gas cylinder. If there is any abnormal situation after startup, i...

Different vacuum systems require different degrees of vacuum. Therefore, a set of vacuum units must be used to complete, that is, the vacuum pumps working in different pressure ranges are connected in series. The vacuum pump on the high-vacuum side can achieve the vacuum required by the system, while the vacuum pump on the low-vacuum side is directly exhausted to the atmosphere. Obviously, the simplest vacuum unit is a straight-line vacuum pump. However, high-vacuum systems generally require three-stage units, and medium-vacuum systems generally require two-stage units. A high vacuum pump and a low vacuum pump are difficult to form an effective high vacuum unit. There are several reasons for this. Traffic continuity is one of them. High-vacuum pumps have the limitation of the pressure resistance of the fore stage, that is, the fore stage is higher than a certain pressure, the pump cannot work normally. When the current stage pump reaches this critical pressure, the pump...

During the operation of Roots vacuum unit, friction may be caused by improper operation of workers, which is not good for our machine. In order to avoid this phenomenon, we will take certain measures to solve it. What are the specific steps? When the wear size of the transmission part is relatively small, the polymer composite repair material can be used on site without disassembly and repair, which not only avoids machining, but also does not have the thermal stress and heat effect of repair welding, and the repair thickness is not limited. At the same time, the wear resistance of the product and the fallback of the metal material are not provided, which ensures 100% contact and coordination of the repair part and reduces the impact vibration of the equipment, Avoid the possibility of wear, and greatly extend the service life of equipment components (including bearings), save a lot of downtime for enterprises, and create huge economic value. Its suction port is connecte...

The temperature rise of Roots vacuum unit refers to the difference between the maximum temperature and the room temperature measured at all parts of the pump surface under the condition of stable operation of limit vacuum or rated vacuum (direct discharge atmosphere roots vacuum unit). There is no limit to the types of thermometers used to measure temperature rise, but they should have a measurement accuracy of ± 1 ℃. When marking the temperature rise, the room temperature at that time and the cooling conditions of the pump, including the cooling method, shall be indicated at the same time. If it is water-cooled, the temperature of water in and out shall be indicated. The outlet pressure of Roots vacuum unit refers to the pressure measured near the exhaust port under the condition of stable operation of Roots vacuum unit, corresponding to a certain inlet pressure value. The test of the outlet pressure can be carried out at the same time with the measurement of the pumping ...

Water as a very common working fluid or coolant, it also plays an indispensable important role in the normal operation of the water ring vacuum pump, and in the water ring vacuum pump, it can be recycled, but also need to pay attention to some details of knowledge, in order to avoid unnecessary trouble. Below we will specifically understand the use of water ring vacuum pump working fluid to understand the problem: 1. When the working fluid is recycled, it can be kept free of impurities. If it is recycled, it needs to be combined with water tank and cooling. Need to pay attention to the use of water ring vacuum pump 2, generally need to add equipment cooling, more important is the on-site process, temperature control, most of the industry is in fact recycled water repeated use, do not waste, if water can be used, but the circulation pipeline must be installed, usually, water ring vacuum pump working fluid should choose industrial soft water. 3, water ring vacuum pump in ...

2BV water ring vacuum pump will produce more or less friction after use. We need to constantly lubricate it to keep it in good working condition, and maintain it for a longer time after use. If you don't know how to do maintenance, give you a detailed introduction. Under normal working conditions, the waste grease and its dirt in bearing and accessory space shall be removed and new grease shall be added after rotating speed of 20000h or 3 years at most. The added grease shall account for 50% of the bearing free space and 65% of the bearing cover space. If the working conditions are very bad, the replacement period of the grease should be shortened accordingly. 1. If hard water is used as working fluid, it can only be used after softening treatment, or the pump can be cleaned with solution within a certain period (to avoid abrasion of impeller and pump body or jamming of impeller, dust particles entering the pump cavity with gas and working fluid shall be cleaned thro...

What is the performance evaluation index of imported roots vacuum pump? This article will be elaborated below. Roots pump pumping speed and zero flow compression ratio from the surface, is two completely different concepts, it seems to be unrelated binomial performance indicators. But in fact, they are not only the performance indicators of roots pumping capacity, but also have a very close relationship with each other. The following analysis of roots vacuum pump pumping speed and zero flow compression ratio. Generally roots pump must match with the front pump to work, so its pumping speed is closely related to the front pump. Roots pump and liquid ring pump, vane pump, slide valve pump, piston pump can be composed of a variety of vacuum units, and according to different needs, the use of a variety of ratio, so that the vacuum unit has a different limit pressure and pumping speed. Therefore, the so-called roots pumping speed is actually the pumping speed of the vacuum u...

The water ring vacuum pump is a kind of coarse vacuum pump, which needs to be used with the water separator. When installing the steam separator, we must master the correct installation method. The installation method of the device's steam separator will be described below. I. pipeline installation of water ring vacuum pump and water separator 1. If external exhaust is required during vacuumization, the exhaust port of the separator can be piped to the outside. If a gas line is not provided, the gas will be discharged directly into the atmosphere through the vents on the separator. 2. The pump exhaust pipe shall be connected to the inlet of the steam separator. When used as a compressor, the steam separator exhaust pipe should be connected to the compressed air system for use. 3. The valve shall be installed on the inlet pipe of the pump for control to prevent the working fluid in the pump from flowing back into the system due to the vacuum suction of the system wh...

How to solve the leakage problem between the closed volume of screw vacuum pump Screw vacuum pump can extract a large amount of water vapor and a small amount of vapor smoke, its sealing ability in the application of mechanical equipment is easy to cause leakage problems. At present, people should carefully study the inside and outside of surgery. The following is a detailed description of the calculation of mechanical equipment leakage safety channel: I. measurement of leakage safety channel length of screw vacuum pump 1. Leak safety channel. The contact line clearance is composed of axial clearance and tooth side clearance, and the clearance on the tooth top circle is composed of the motor rotor tooth top circle surface and wall cavity. 2. The length and total area of each leakage shall be specified. When calculating the lengths L1, L2 and L3 of axial clearance and tooth side clearance, the contact line formula of each section of figure should be calculated first. 3....

If the oil in the vacuum pump is dirty, can the frozen oil replace the frozen oil can replace the vacuum pump oil? About this question, puno manufacturer of vacuum pump oil is like this explanation, first we must make clear what is in common between them, and what's the different between the two places, with these two questions, small make up on this article is to analyze the related questions of frozen oil can replace the vacuum pump oil, hope to inspire you. Can refrigerated oil replace vacuum pump oil? Punok vacuum pump oil has its unique substitution principle: Try to use the same type of oil or similar performance, similar type of additives instead. High quality to replace low, that is to choose high quality first gear oil substitute, so that the use of equipment lubrication more reliable, improve the efficiency of equipment. At the same time, but also can extend the use of life, economically cost-effective. The viscosity should be similar, the viscosity of su...

Magnetic driven pump (magnetic pump for short) is a new product which applies the working principle of permanent magnet coupling to centrifugal pump. Reasonable design, advanced technology, full seal, no leakage, no corrosion. Magnetic pump is widely used in petroleum, chemical, pharmaceutical, electroplating, environmental protection, water treatment, film and television printing departments to pump flammable, explosive, toxic, valuable liquid. It has extensive sealing, no leakage and corrosion resistance. It is the ideal pump to create a leak-free, pollution-free civilized workshop and civilized factory. The following should be considered when installing the magnetic pump: 1. Place the equipment on the foundation, place a pair of wedge pads between the bottom plate and the foundation, and then adjust the pump level by adjusting the wedge pads. After adjustment, tighten the anchor bolt. 2. Check the pump and motor before installation. All parts should be intact. There...

Water ring vacuum pump equipment may have some problems after a period of use. For example, the water ring vacuum pump pump end cover in a long time after the use, may appear the phenomenon of corrosion, so the water ring vacuum pump pump end cover after corrosion how to repair? (1) cleaning The water ring vacuum pump has been corroded to clean the surface and corrosion layer, with the appropriate amount of propionone to clean the surface until there is no residue (2) seasoning The condiments used for repairing the water ring vacuum pump should be mixed with the repairing materials in a certain proportion, stirring evenly until there is no color difference and the color is even (3) paint First in the surface of the corrosion area coated with a thin layer of seasoning, to ensure that all cover in the need to repair the site, and then paint evenly coated to repair the site, and layer by layer thickening, to maintain appropriate thickness, should not be too thick or too...

Vacuum pump maintenance: vacuum pump exhaust valve repair steps For the normal operation of the vacuum pump, the vacuum pump exhaust valve working normally or not is one of the factors that will affect its performance, for it is very important. Vacuum pump exhaust valve work is not normal, will greatly affect the vacuum degree. So the vacuum pump maintenance, exhaust valve is very important. Today, dongguan punok vacuum technology co., LTD. Sorted out the "imported vacuum pump maintenance: vacuum pump exhaust valve repair steps". Valves are used to change the direction or size of the airflow or to block and connect the vacuum system, gas delivery system components, widely used in semiconductor equipment in all aspects, including: 1 switch gas. 2. Control the air flow and adjust the vacuum. 3. Quantitative inflation. The exhaust valve is a valve for separating exhaust gas from the turbine in a turbocharged engine system. Exhaust gas separation reduces the turbi...

Method of cleaning the cavity of water ring vacuum pump The abdominal cavity cleaning of water ring vacuum pump is a special aspect of water ring pump maintenance. Because the water ring vacuum pump in a long time to use, the abdominal cavity will inevitably enter some debris, with the increase of time, the dirt covered in the abdominal cavity, the performance of the water ring vacuum pump has a great adverse impact. Show you how to clean the inside of the abdominal cavity in time: For the water ring vacuum pump, not only to keep the appearance of clean, but also to keep the internal clean. To maintain the stable performance of the water ring vacuum pump, the use of a long time, the daily maintenance work is crucial, only the double care of the water ring vacuum pump to normal operation. Because the water ring vacuum pump for a long time internal may have scale or other substances, only clean water treatment is far from enough, in the cleaning process, must thoroughly r...

Screw vacuum pump long - term use of the process may encounter a problem: oil return. In addition to the screw vacuum pump without anti-oil return device, this phenomenon is more obvious when the screw vacuum pump stopped working, timely measures can reduce the loss The placement of the screw vacuum pump has nothing to do with the return of oil. It is the basic principle to prevent the return of oil to cut off the oil line when stopping the pump, eliminate the negative pressure in the pump chamber of the screw vacuum pump, reduce the liquid level difference and reduce the amount of returned oil: Screw vacuum pump shaft seal and static seal parts to be reliable, timely replacement Separate the oil near the exhaust valve of the screw vacuum pump from the rest of the oil, the oil level is only slightly higher than the partition wall The valve seat plane of the screw vacuum pump should be flat and the valve plate should be elastic The check valve structure is set so that...

Users who have used water ring vacuum pump know that the vacuum degree of the machine should be within a certain range of values during the use of the machine, and the vacuum degree has a great relationship with the suction capacity, too high or too low suction capacity will have a bad impact on the equipment. However, sometimes we will find that the suction capacity of the machine is slowly decreasing, which directly causes the change of vacuum degree, thus affecting the normal operation efficiency of the machine. Then why does the water ring vacuum pump appear the phenomenon that the suction ability decreases? Today xiaobian with you to understand the specific. 1. If the suction area of the water ring vacuum pump is in the state of negative pressure, and the temperature of the working fluid is higher than the saturation temperature corresponding to the negative pressure of the suction area, the water will vaporize, making the vacuum degree in the pump lower and directl...

Water ring vacuum pump is a new generation product developed by our company. It has the characteristics of strong corrosion resistance, high limit vacuum degree and large exhaust capacity. So why does the vacuum drop in summer when the water ring vacuum pump is used? 1. Under working conditions in summer, water ring vacuum pump adopts circulating water to cool working water. High temperature of circulating water will lead to the decrease of suction capacity and efficiency of water ring vacuum pump. Through analysis, the working water of the water ring vacuum pump is cooled by the refrigerated water of the central air conditioner of the power plant 2. Other conditions being unchanged, the lower the working water temperature, the smaller the influence on the vacuum of the water ring vacuum pump, while the higher the working water temperature, the greater the influence on the vacuum 3. For the double back-pressure condenser, due to the low pressure of the condenser corre...

Vacuum pump maintenance manufacturers talk about the vacuum pump to reduce friction method text: today, vacuum pump maintenance manufacturers here to introduce the vacuum pump to reduce friction method. The vacuum pump can remove the dry gas in the sealed container of the constant temperature and humidity test chamber. But it is not suitable for removing gases that contain too much oxygen, are corrosive to metals, react chemically with pumped oil, or contain particulate dust. Vacuum pump is one of the most basic vacuum acquisition equipment in vacuum technology. Vacuum pump for small and medium-sized pump. Rotary vane pump has a single stage and two stages. The so-called two-stage, is in the structure of two single-stage pump series. Generally made of two - stage, in order to obtain a higher vacuum degree. The vacuum pump body is equipped with an appropriate amount of water as the working fluid. When the impeller rotates clockwise as shown in the figure, the water is t...