vacuum equipment

Oilless reciprocating vacuum pump I don't know if you've heard of it. Our company mainly deals in 2BV water ring vacuum pump, oilless reciprocating vacuum pump, vertical reciprocating vacuum pump, etc. Today we mainly introduce oil-free reciprocating vacuum pump, welcome to read! Oilless reciprocating vacuum pump is a mechanical vacuum pump, without any oil lubrication can run. The utility model has the advantages of simple structure, convenient operation, convenient maintenance and no pollution to the environment. Vertical oil-free vacuum pump has good durability, is a vacuum, compression, dual-use vacuum pump. It is a basic device with a wide range of applications for obtaining a vacuum. Compared with oil pump, oilless reciprocating vacuum pump degree is low, pumping capacity is small, but small size, easy to install, easy to maintain, easy to move, do not produce smoke, do not pollute the environment especially in the laboratory with higher requirements. It i

At present, the price of Roots blower is very confused in the market, which leads the purchasers to focus on the "price" when choosing Roots blower, while ignoring the quality problems of the product itself and the problems of after-sales service. The factors that really affect the price of Roots blower can be summarized as follows: 1. Sealing methods: piston ring seal, mechanical seal, packing seal and labyrinth seal The first three sealing methods are all used for fan conveying medium as special gas. Considering the safety, the price is much higher than that of conventional products. However, the latter one is labyrinth seal for Roots blower of conventional sewage treatment. AERZEN Roots blower in Germany is realized through oil throwing disc and labyrinth piston ring seal with middle return air hole, which ensures the safety. Purpose of clean oil-free transmission. 2. Material: stainless steel and ordinary steel castings Stainless steel material is often use

When you need to buy Ben Roots blower, please inform the following items in detail as far as possible: 1. Roots Blower Usage... Wastewater treatment aeration, etc. 2. Roots Fan Specification... Import air volume, outlet pressure, etc. 3. The nature of inhaled gases from Roots blowers... Particularity of inhaled gases (corrosiveness) 4. Conditions for Roots Blower Settings... Indoor or outdoor, ambient temperature, etc. 5. Roots blower motor... Form, voltage, protection level, etc. 6. Roots fan accessories, spare parts... Is it necessary? 7. Roots blower painting color... Is there a specified color? I don't know which one is good for Roots blower? What about swelling? Want good quality and low price? As the saying goes, one price and one goods is good, but the general enterprise or individual households use Roots blower to buy large brands or imports, the price naturally goes without saying, that is called an expensive! Buy cheap and afraid of poor quality, back and

Roots blower is one of the most popular operating ventilation equipment. In recent years, professional blower manufacturers have gradually developed new products such as low noise, double oil tanks, oil displacement, water-cooled Roots blowers and so on, which are put into the market by using conventional air-cooled and single oil tank Roots blowers instead of the original two-leaf Roots blowers. What problems should fans pay attention to in the initial stage of purchasing? Next, let's take a look at them. First of all, let's know about Roots blower: the structure is simple enough to consist of a chassis, a wallboard and two three-blade impellers. Through the action of a pair of synchronous gears, the two impellers rotate at the same speed in the opposite direction, and rely on the tiny gap between the impeller and the impeller, between the impeller and the casing, so that the suction chamber and the exhaust chamber are basically isolated. By means of the impelle

1. Performance parameters refer to model, diameter, rotational speed, exhaust pressure and actual air intake And the shaft power of the blower. 2. The performance parameters of the said standard amount of air suction conditions (temperature 20 ℃, absolutely Pressure 1.0332 KGF/cm 2, relative humidity 65%). 3. Refer to the capacity of air temperature (0 ° C and absolute pressure 1.0332 KGF/cm squared) usually in Nm after/min And CFM. 4. Air inlet capacity can be converted as follows. P1 273 + T2 Q2 is Q1 * ------ * -------- The P2 273 + T1 Q1: based on the absolute pressure P1 (mmAq) and the air temperature T1 (°) capacity after (m/min) C) Q2: based on the absolute pressure P2 (mmAq) and the air temperature T2 (° C) capacity after (m/min) 5. Motor power is 1, 1-1,3 times of shaft power. 6. The parameter error is about 5%. Pulp dehydration blower Roots Blower for Shipping Industry 

1. Reasons for easily broken belt of Roots blower: 1. First of all, consider the high speed and high temperature of Roots blower. 2. The distance between the head and motor of Roots blower is too large and the belt is tight. 3. The belt does not match the V groove of the pulley, so it can not withstand the load fracture after wearing. 4. Active pulley and driven pulley are not parallel, resulting in serious friction between belt and groove on one side, and can not bear load fracture after wear. 5. Heavy load, long-term overload operation of belt is easy to break. 6. Roots fan nose and motor pulley are not concentric, different axes. 7. Belt quality problems. 2. Measures to prevent the belt of Roots blower from breaking. 1. Roots blower must start without load before running. After starting, it should be loaded. After running, it can generally avoid triangular belt breaking. 2. The pulley between the motor and the fan should be parallel, which is a key point. If not para

The inherent characteristics of vacuum pumps refer to the inherent characteristics of products, including product performance, parts quality, assembly quality, appearance quality, etc., referred to as quality. At this point, many pump manufacturers are also concerned about efforts to improve and improve. In fact, we can find that many products can not reach the effect of factory inspection after factory inspection meets the requirements of users, and problems such as overload, noise increase, unsatisfactory use or life reduction occur; and the operating point or operating characteristics of vacuum pumps in practice, we call them the external characteristics of vacuum pumps. Or system characteristics. From the point of view of sales, selling products is to promote the inherent characteristics of pumps, while focusing on the external characteristics of vacuum pumps is that manufacturers are not only promoting products, but also promoting pumping stations (complete engineer

Vacuum system is an exhaust device used to obtain vacuum. It mainly consists of various vacuum pumps, vacuum gauges, vacuum valves and connecting pipes. Like power supply, ammeter, switch and wire in electronic circuit. Due to the different requirements for vacuum systems in various practical applications, there are many types of vacuum systems, which can be classified according to different situations. Requirements for vacuum systems Requirements for vacuum systems should depend on specific applications, and generally should meet the following points: 1. Make the vacuum chamber (or the device being pumped) obtain the required limit vacuum and working vacuum. Limit vacuum degree is the vacuum degree that can be achieved by vacuum chamber (or device) after long-term pumping of vacuum pump. Working vacuum degree is the vacuum degree that can be maintained by vacuum chamber (or device) during the exhaust process. In the process of exhaust, vacuum chambers (or pumped devices

1. In order to keep the XZ direct-connected rotary vane vacuum pump clean and prevent impurities from entering the pump, after long-term use of the pump, the oil of the pump becomes dirty, it is necessary to replace the pump oil, remove the oil-proof screw when replacing, tighten the oil-releasing screw after putting the dirty oil in place, and add the clean vacuum pump oil to the middle line of the oil mark. 2. When the vacuum pump is not working (parking), the intake port should be blocked to prevent dust from entering the pump. 3. When the vacuum pump works for a period of time, it is necessary to check whether the pump oil is still at the midpoint of the oil mark. If it is insufficient, it is necessary to add oil. If it is found that the pump oil is decomposed or there are impurities, it should also be changed. 4. The vacuum pump should be dismantled and repaired during the working period if the vacuum degree is abnormal. But it needs to be carried out under the guid

1 installation Rotary vane vacuum pump should be placed horizontally. Similar to the rotary vane vacuum pump, there is almost no vibration when it is running, which is usually not fixed. There are metric screw holes on the cushion block at the bottom of the pump to fix the pump. Do not push and pull the pump on the ground to avoid damaging the cushion block. In order to ensure a good cooling of rotary vane vacuum pump, the inlet and outlet of cooling air should be more than 30 cm away from the surrounding objects. In order to facilitate maintenance, it is recommended to leave 0.4m gap in front of the intake and exhaust ports of the pump. A base with an oil disc can be installed for easy oil discharging. The pumps are delivered without oil. After installation, the required vacuum pump oil is slowly injected through the filling port (see Maintenance 5.1) to 3/4 of the height of the oil window. 2 Electrical Connection of Vacuum Pump Electrical wiring must be carried out by

Compared with other types of mechanical vacuum pumps, the vacuum system water ring pump has the following advantages: The structure is simple, the manufacturing accuracy is not high, and it is easy to process. Compact structure, high pump speed, generally can be directly connected with the motor, without deceleration device. Therefore, with a small structure size, we can get a large amount of exhaust gas and occupy a small area. Compressed gas is basically isothermal, that is, the temperature change of the compressed gas process is very small. Because there is no metal friction surface in the pump chamber, there is no need to lubricate the pump, and the wear is very small. The sealing between the rotating part and the fixing part can be accomplished directly by the water seal. Inhalation uniformity, stable and reliable work, simple operation, easy maintenance. Water ring vacuum pump also has its shortcomings: low efficiency and low vacuum. In short, because the gas comp

If the vacuum pump is not used for a long time, the water in the pump chamber should be released, and the pump chamber should be wiped with a dry cloth. If the interior of the pump chamber is not dry, the pump chamber will rust over a long period of time. At this time, we may not be able to turn on the vacuum pump when we use it. So we have to get rid of rust. Artificial rust removal: Such measures are the most cost-effective and insurable. Artificial rust removal, we can use the tools we have at hand to remove rust, our artificial rust removal, do not need to use other chemical products to remove rust, so save some costs. Why is it insurance? Because if chemical rust remover is used to remove rust inside the vacuum pump chamber, the pump chamber will be damaged more or less. 2. Rust removal with rust remover: This method is very clean but damages the pump chamber. Vacuum Pump for Vacuum Furnace Ball valve supply  

Today, the technicians of Central Vacuum Pump briefly introduce the repair knowledge of the small cover of rotary vane vacuum pump, hoping to help you. If the cover is not seriously damaged, the rust on the surface can be wiped off with No. 3 abrasive cloth, then coated with a thin layer of red red, the impeller is matched with it, and the impeller is rotated several times by hand, then the conical surface can be observed. The polished part of the small cover shows that it is a higher part and can be filed flat with a file. The red-red mark on the conical surface of impeller is also the higher part, which can be scraped off with a scraper. After preliminary repairs, reddish red is applied again. The small cover cooperates with the impeller and rotates. Repeat the above repairing procedure. This is repeated many times until most of the red-red on the surface of the small cover cone matching is ground, and most of the surface of the impeller cone matching is evenly coated

2BV water ring vacuum pump is a kind of coarse vacuum pump. It can obtain a large limit vacuum, and can also be used as a compressor. It has the function of extracting vacuum. Its use can be reflected by the water supply. So how to adjust its water supply? 1. Because the water supply of vacuum pump has a certain range, in order to obtain the best water supply, water saving can be adjusted according to the program. 2. When the 2BV water ring vacuum pump is running normally, open the water supply valve properly, and then observe the pressure of the vacuum gauge at the entrance. 3. Slowly close the water supply valve to open. When the vacuum meter pointer starts to fluctuate or fall, the water supply is not enough. Re-open the water supply valve slowly. When the vacuum meter pointer stabilizes again, the water supply is the best. Note: When the water supply is insufficient, the pumping capacity of the vacuum pump decreases, and causes unstable work. When the water supply is

Working process of water ring vacuum pump: the mixture of air and steam in the condenser passes through the suction of the water ring vacuum pump to enter the air water separator. The working water after cooling is 2 ways and 1 way, which is sprayed into the water ring vacuum pump inlet through the nozzle to cool the mixture of air and gas from the condenser to improve the suction capacity of the water ring vacuum pump. The other way directly enters the water ring vacuum pump as the working water to maintain the water ring and water ring temperature of the vacuum pump. The water ring vacuum system is shown in figure 1. Water ring vacuum pump main components are impeller and housing. Because the impeller is mounted on the shell eccentrically, the working liquid rotates with the impeller to form a running water ring in the shell, and the inner surface of the water ring is eccentrically connected with the impeller. As the shell in the appropriate position to open air intake

When using 2BV water ring vacuum pump, due to the lack of knowledge of its braking mode, the wrong accessories will be selected, which will affect the use of equipment. Today, the braking mode of 2BV water ring vacuum pump will be introduced in detail for us. 1, regenerative braking: refers to the 2 bv water ring vacuum pump on the brake to slow down or stops the energy feedback to dc bus through the inverter circuit, the resistance capacity circuit absorption, regenerative braking works in normal working conditions must be in the server, the failure, abrupt stop, and when the power outage situation can't brake motor, the work is the system automatically. 2. Electromagnetic braking: the shaft of 2BV water ring vacuum pump is locked by mechanical device. Electromagnetic braking is generally started after SV and OFF, otherwise the amplifier may be overloaded. 3. Dynamic brake: it is composed of dynamic braking resistance, which can shorten the mechanical feeding distance of 2BV

The maintenance core of the dry vacuum pump is the maintenance of the vacuum pump, so this paper can be called how to maintain the vacuum pump. It is divided into the following six points: Knowledge of Dry Vacuum Pumps - How to Maintain Vacuum Pumps 1. Vacuum pump oil XD and XQ series vacuum pumps shall use the vacuum pump oil specified in the composite SH0528-92 standard. Vacuum pump oil with ISO-VG32 viscosity grade is used at ambient temperature of 0-10 C. ISO-VG100 vacuum pump oil (original 1 # vacuum pump oil) is used at ambient temperature of 10 40. Vacuum pump must keep oil level at 1/2-3/4 of oil window height when running. Oil level and oil pollution should be checked regularly (once a week is recommended). 2. Replacement of Vacuum Pump Oil and Oil Filter If the oil is contaminated and blackened, emulsified or thickened, the oil should be changed in time. At the same time, oil filters should be replaced. Clean the pump before adding new oil. Cleaning and oil changing step

ABSTRACT: The whole system consists of Roots blower, manual plug-in valve, rotary feeding device, Venturi spray device, conveying pipeline, pipeline shunt valve, and storage bin, top dedusting device, electrical control system and related auxiliary settings. Introduction of pneumatic conveying system: I. Working Principle of the System The barotropic dense phase pneumatic conveying system uses the barotropic air flow generated by Roots blower as the power to convey the material continuously supplied by the rotary feeder from the hopper to the subsequent storage warehouse. Storage warehouse is equipped with top dedusting device to separate material and gas transported to storage warehouse. The whole system is composed of Roots blower, manual plug-in valve, rotary feeding device, Venturi jet device, conveying pipeline, pipeline shunt valve, storage bin, top dedusting device, electrical control system and related auxiliary settings. When the system works, the Roots blower is activ

1. If a pneumatic solenoid valve is installed at the pump port of a rotary vane vacuum pump, it should be installed horizontally and operated simultaneously with the vacuum pump. When the relative humidity is high or the condensable vapour such as water vapour in the extracted gas is high,'the dilapidation valve shall be used. Auxiliary method for judging steering. The sheath of rotary vane vacuum pump is inverted so that it is absorbed on the pump mouth after opening the pump. It is positive, blown off and reversed. Normal sound is positive and abnormal sound is reverse. Full pressure gauge should pay attention to the matching calibration and standby comparison between gauge and regulation - it is recommended that Chu-1 ball valve be used between gauge and pump under test. Vacuum pump oil is recommended according to the instructions. Note that the vacuum pump oil can not be mixed with mineral oil type vacuum pump oil and other oils. It must be strictly cleaned before it can be

With the development of industrial production, people have higher and higher requirements on the vacuum system. The appearance of dry screw vacuum pump has replaced the traditional vacuum system, which has great market competitiveness and development potential. So dry screw vacuum pump widely used in what industries? Do you know the application of dry screw vacuum pump? Let's learn about it. Dry screw vacuum pump is used for solvent recovery in pharmaceutical industry The use of solvent crystallization process of raw materials, generally after the crystallization of filtration, washing and vacuum boring. The moisture content is generally 20% ~ 200%. The solvent contained in the wet materials is generally flammable, explosive, toxic and harmful medium. They are removed by the vacuum unit in the boring process. Traditional wet vacuum system in choose roots - liquid ring vacuum pump unit, liquid ring pump sealing fluid in operation will dissolve or absorb part of the organic sol