博文

目前显示的是 十二月, 2019的博文

Need to pay attention to the use of water ring vacuum pump

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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

Lubrication and maintenance of water ring vacuum pump

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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

Performance evaluation index of imported roots vacuum pump

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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

How to install the steam separator of water ring vacuum pump

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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

The screw vacuum pump seals the leakage between the volumes

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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.

Can refrigerated oil replace vacuum pump oil?

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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 pump installation matters

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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

Cause of current fluctuation in vacuum pump

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Vacuum pump maintenance manufacturer analysis of the vacuum pump current fluctuations Recently, some customers have reported to our company that the current drop often occurs in the operation of vacuum pump, and the current drop value reaches about 30A, and the drop time is very short, only about 1~3s. With the decrease of the vacuum pump current, the unit vacuum also decreases to different degrees, and the maximum vacuum can decrease to 5kPa. The customer service personnel of our company immediately reported this problem to the technical personnel. After many discussions and studies, the vacuum pump maintenance manufacturer analyzed the causes of the current fluctuation of the vacuum pump caused by the following contents, and provided corresponding solutions. According to the observed phenomenon, and when manually controlling the relay to switch the valve, it was found that water mist was discharged from the vent of the reversing valve, and the switch of the two doors

How to repair the water ring vacuum pump after corrosion

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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 exhaust valve repair steps

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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

The inlet butterfly valve switch of the water ring vacuum pump is out of order

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Water ring vacuum pump inlet butterfly valve switch failure is a more complex fault, usually in the occurrence of a sharp decline in the vacuum, you can consider the inlet butterfly valve switch failure, first to understand the causes of a water ring vacuum pump switch failure: When one water ring vacuum pump is switched to another standby water ring vacuum pump, the vacuum will drop sharply and cannot be recovered. This situation is likely to be water ring vacuum pump inlet butterfly valve closed, and simply can not move, resulting in two water ring vacuum pump gas, vacuum decreased. The reason for the failure is that the electrical control switch of the butterfly valve is not sensitive enough to close the butterfly valve Butterfly valve is prone to another kind of failure is the butterfly valve can not open, this situation is generally because the water ring vacuum pump butterfly valve can only be opened when the pressure difference between front and rear up to 30mbar