vacuum equipment

The oil-free vacuum pump under its working pressure should be able to discharge all the gas produced in the process of vacuum equipment. Requirements for oil contamination of vacuum equipment. If the equipment strictly requires no oil, should choose a variety of no oil pump, such as: water ring pump, molecular sieve adsorption pump, sputtering ion pump, cryogenic pump. If the requirements are not strict, can choose a pump, plus some anti-oil pollution measures, such as cold trap, baffle, oil trap, can also meet the requirements of clean vacuum. The working pressure of the oil-free vacuum pump should meet the requirements of the ultimate vacuum and working pressure of the vacuum equipment. For example, a vacuum drying process requires a working vacuum of 10mmHg, and the selected vacuum pump should have a limit vacuum of at least 2mmHg, preferably up to 1mmHg. Usually choose the limit vacuum of the pump is higher than vacuum equipment operating vacuum degree half to an or...

Automatic water absorption, first to have the power to help the water absorption tool to achieve this process, for the water ring vacuum pump, we can also use the following methods to achieve its automatic water absorption: 1, water ring vacuum pump water storage can be placed near the pump, and make the bottom of the barrel slightly higher than the pump outlet; Or when a pool is built on the side near the pump room, the pool is lowered slightly to form a reservoir. Connect the bucket with the water filling hole in the pump body with a pipe. Before stopping the machine, fill the bucket with the water from the outlet pipe, and then automatically absorb water when starting next time. 2. Remove the muffler of the small engine and install a special waste drinking water device by using the exhaust gas of the engine to extract the air, so that the water ring vacuum pump can generate a certain vacuum degree. Operation, first start the engine, and then water waste water device h...

Water ring vacuum pump automatic water absorption process, the first need to have suction power, to help the water absorption tool to achieve this process, for water ring vacuum pump, we can also use some methods to achieve this process: 1, water ring vacuum pump water storage can be placed nearby, and make the bottom of the bucket slightly higher than the water ring vacuum pump outlet; Or when a pool is built on one side of the water-ring vacuum pump room, the bottom of the pool is lowered slightly to form a reservoir. Connect the bucket (or pool) to the pump body filling hole with a hose. Before shutdown, use the water from the outlet pipe to fill the bucket for standby use. When starting the water ring vacuum pump next time, it can fill the bucket with water by itself. This method is easy to use 2. Remove the muffler of the small engine by using the engine exhaust pumping vacuum water charging method, install the special waste gas water diversion device, and use the...

When referring to the leakage phenomenon of vacuum pump unit, we should pay attention to the fact that most of it will occur on a device with water-cooled jacket. Referring to the phenomenon of internal leakage of vacuum pump unit, in fact, we did not find any doubtful points when we looked at the leakage, but in fact, the pumping speed of its mechanical pump will be significantly lower, and the vacuum gauge is relatively low or the mechanical pump oil is quickly emulsified. ​ Vacuum pump unit Next, we will find that the iron-based parts in the vacuum chamber of the vacuum pump unit will be significantly corroded. In fact, we can basically conclude that it has an internal leakage phenomenon. At this time, we should also pay attention to the cleaning of the inner wall. Next, we should pay attention to the cooling water to see if it has a wet point. Its wet point is its leak point. In fact, the leakage of vacuum pump unit is very difficult to check. Our common method is to...

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 ...

Low vacuum equipment such as vacuum transport, vacuum impregnation, vacuum filtration, vacuum monotone, vacuum degassing (steel disposal) begged with high working pressure, large volume of low vacuum pump pumping Gas unit, such as reciprocating vacuum pump, oil seal vacuum pump, water vapor radiating pump, water ring pump, roots pump, etc. Low vacuum pumping unit used Still need basis to be pumped gas clean degree, humidity or other special beg, equipment is necessary dust remover, drab can wait for a part. Water vapor in the process of condensation will condense into droplets, and mixed with the pump to form a suspension, not only will make the vacuum drop, but also can make the pump chamber and rotor rust, damage the sealing surface, so that the pump Reduced ultimate vacuum. Therefore, it is important to avoid water vapor on the mechanical pump pollution. Ways to avoid it: (1) choose oil seal mechanical pump with gas ballast equipment; (2) oil loading separator, centrifugal s...

I. operation and maintenance of rotary vane vacuum pump 1. Start of pump: check whether the cooling water of water cooling pump is connected before starting. When the ambient temperature is low, the pulley can be moved by hand to discharge the oil in the pump chamber into the oil tank. Then press the motor button to send power, pay attention to the direction of the power supply is connected to the wrong, the pump rotation direction is correct. 2. Precautions for pump operation: check whether the pump oil quantity is near the oil mark line; Do not open the valve of the pumping system too fast to prevent large amount of oil injection; Pay attention to the abnormal noise and impact sound during operation, pay attention to the high oil temperature rise of the pump, stop the pump immediately when there is local overheating, to prevent stuck pump or wear. 3. Matters needing attention when stopping the pump: air must be released from the pump inlet when stopping the pump (generally, all un...

I don't know what type of vacuum pump you want to maintain, I can provide oil lubrication vacuum pump maintenance information here! For your reference! Daily maintenance of oil-lubricated rotary vane vacuum pump is described as follows: 1. Check the operating environment of the pump to avoid foreign matters and sundries falling on the pump. 2. Before starting up, check whether the oil level meets the requirements of starting up. If the pump oil is not enough, add it and make sure it is at the normal oil level. 3. Pay attention to starting and running sound and temperature rise. 4. Check the exhaust pressure after starting the system for 15 minutes, and check whether there is oil injection at the exhaust port. 5. In the case of proper moisture content in the operating medium, the pump shall be started 30 minutes before the system starting and shut down 30 minutes after the system closing. Note: never mix different brands of vacuum pump oil in the oil tank Cycle maintenance...

In order to better explain the electrical control system, the mechanical structure of this type of vacuum aluminum brazing furnace is first introduced, as shown in Figure 1. The main body of the vacuum aluminum brazing furnace is composed of a heating chamber, a furnace body, a front and back stove door and various functional parts. The heating chamber is installed in the furnace body and consists of a plurality of heating resistors and insulation layers. The heating resistors are connected by the electrodes and cables outside the furnace body to form 28 heating zones. Each zone is powered by a set of thyristor voltage regulating power supply circuit. The furnace body is a double-layer water-cooled jacket structure with the necessary functional components of brazing furnace welded on it. The front and rear doors are also double-layer water-cooled jacket structure, which can be mounted on the door car which can move vertically along the axis of the furnace body. The door ca...

Purpose: the equipment is mainly used for dipping the stator and rotor of traction motor of electric locomotive. COMPOSITION AND FUNCTION OF VACUUM PRESSURE PAINT DIPPING EQUIPMENT: 1. THE LEACHING PAINT CANS Paint soaking capability :  the equipment can paint one stator or three rotors each time to the traction motor of the electric locomotive. Composition: it is composed of tank body, rotating hoop, tank cover, hydraulic opening cover and elastic mechanism, sight mirror, explosion-proof sight hole lamp, temperature and pressure vacuum measuring instrument, level controller, vacuum port, paint conveying port, pressure port, air vent, etc. Main technical parameters: 1) specification: Φ inside diameter of 1800 mm, straight edge height 1500 mm 2) load vacuum: less than 65Pa time and less than 25min 3) leakage gas of load: 0.13Pa. M3 /s 4) working pressure: 0.4 ~ 0.75mpa 5) pressure medium: filter dry air without oil 6) leaching paint pot allows the highest wo...

HARDNESS TESTING AFTER SURFACE HEAT TREATMENT 1. SURFACE QUENCHING AND TEMPERING HEAT TREATMENT Surface quenching and tempering heat treatment is usually performed by induction heating or flame heating.  The main technical parameters are surface hardness, local hardness and effective depth of hardened layer. Surface hardness testing can be done by using a rockwell hardness tester (HR). The selection of test force (scale) is related to effective hardening depth and workpiece surface hardness. HRA scale can be used when the workpiece's heat treatment hardened layer thickness is between 0.4 and 0.8mm, and HRC scale can be used when the hardened layer thickness exceeds 0.8mm. The vickers hardness tester is another important means to detect the surface hardness of the heat-treated workpiece. It can choose the test force of 0.5~100kg to test the surface hardening layer of the workpiece thin to 0.05mm thick. It has the highest accuracy and can distinguish the slight difference ...

Put it in the middle (before the statue). Your question belongs to "how to set the table". I will reply to you together. 1. Put the incense table, the statue of the sacred Buddha in the middle, and put five offerings in the front. Left and right 2 vases, insert flower 3 or 5 branches, with odd number advisable; A pair of left and right candlesticks with red candles. It is called the five confessions. 2, 5 for the front of the grain (five kinds of color of grains, such as rice, black beans, mung beans, soybean, peanut, etc.), five fruit (colored fruit such as apples, oranges, bananas, grapes, pears, etc.), three cups of green tea, etc., can't remember put animal products, otherwise detrimental to deities at (because god is "out-of-touch thing"), and also damage their own blessings. 3. Both the Buddha and bodhisattvas can be offered together, or they can share a furnace of incense. As for the "Buddha for a fire of incense" is a superstition ...

It is also known as the fragrance, because the smoke produced during the burning process is named for the higher tar content that flows from the higher to the lower. Invert incense is a conical hollow type. It is usually used in the process of using a special censer, and the incense burner has holes or grooves to facilitate the flow of smoke. It is very interesting. In recent years, the appearance of cliff cypress has refreshed the smell and health only the aloes of aloes, south aloes, north cliff cypress! It has become a new way to keep healthy. Today, we are going to explain the production process of the backflow fragrance. Production steps: Gas recycling water ring compressors pvd coating vacuum pump system China Assurance Vacuum Pump Manufacturing in Argentina 1. Cliff bark 2. Add sticky powder (alias white gum, a kind of powder that is made from the skin, branches, leaves and roots of a natural tree with a sticky nature. You can buy it online) 3. Add water and st...

Baiji gold bronze incense burner for the country No. 287 South Korea's national treasure. Now collected in the National Museum of Korea Fuyu. Baiji gold copper incense censer is a cultural heritage on behalf of Baekje, it is the use of superb metal technology and profound artistic skills produced masterpiece. 1993 unearthed in Baekje royal temple - fuyu mountain temple ruins, presumably, the censer may be used for the ceremony of the royal ceremonial Ming device. Box Vacuum Chamber Made in Indonesia Gold and copper censer by the incense burner cover, shaft, base composition. Phoenix is ??carved on the top of the incense burner and five musicians are playing the instruments below. The 74 peaks are carved with trees, rocks, streams and waterfalls, and 42 animals such as tigers, deer, elephants and monkeys and 6 species of plants and 12 animals are carved. A total of 12 holes, the top of the chest on the Phoenix there are two, around the peak of 10, lit incense, the smok...

Enamel incense for the Qing Emperor Qianlong era enamel device, a "Qianlong Year" models, they are simple shape, ornamentation graceful, the production process is also very fine, with a high collection value. vacuum pump in china Copper tire gold. Round, open, along the roll, double erect ears, short neck, flat abdomen, flat, short three pyramids. Automatic UV polyurethane coating machine The inner walls are light blue enamel glaze, the outer wall is yellow enamelled, the enamel is gorgeous and bright, the enamel is delicate and smooth, the embellishment is the hook line, the mottled floral pattern is drawn. The petals are painted with white edges, painted red, blue and purple colors. Green to black Crochet, of which six on the Red Lotus Tuotuo peach, peach Seal book a group of Chinese characters. At the end of the blue square box regular script "Yongzheng year" four characters. PVD vacuum metallizer vacuum coating machine in China