Circulating Water Aspirator Vacuum Pump
Circulating water aspirator vacuum pump, also known as water ring vacuum pump, is a kind of vacuum pump. The ultimate vacuum it can obtain is 2000-4000 Pa, and the series atmospheric ejector can reach 270-670 Pa. The water ring pump can also be used as a compressor, called a water ring compressor, which is a low-pressure compressor with a pressure range of 1-2X105 Pa gauge pressure.
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The circulating water aspirator vacuum pump is composed of water tank, water pump, pressure gauge, check valve and other components. It is designed with circulating water as the working fluid and the principle of negative pressure generated by jet flow. Widely used in suction filtration, evaporation, distillation, crystallization, decompression, sublimation and other operations, it is an ideal equipment for laboratories in universities, pharmaceuticals, chemicals, food processing and other fields.
The working water of the circulating water aspirator vacuum pump is discharged together with the compressed gas. Therefore, the water ring needs to be continuously replenished with new cold water. To maintain a stable water ring thickness and temperature. The water ring acts as a "liquid piston". There is also heat dissipation (for the compression process). Sealing (between the impeller and the gas distribution plate), cooling (shaft seal), etc.
How to use the circulating water aspirator vacuum pump and the frequency of water change:
When using the circulating water aspirator vacuum pump, you need to open the upper cover of the tank and inject clean water. When the water level rises to the high level of the buoy, stop adding water, and you don’t need to add water when you turn it on again.
1. First check whether the circulating water switch is closed. If it is not closed, turn off the circulating water switch first, then connect the exhaust pipe of the laboratory equipment that needs to be vacuumed to the exhaust nozzle of the circulating water aspirator vacuum pump, turn on the power, turn on the power switch, and circulate the water. The vacuum book starts vacuuming, and the vacuum gauge shows the degree of vacuum.
2. When the circulating water aspirator vacuum pump needs to work for a long time, the water level of the water tank will rise, which will affect the vacuum degree. Connect the water injection hose to the faucet (water source) and drain the overflow pipe to keep the water temperature in the water tank from rising. The vacuum is stable.
3. When the circulating water aspirator vacuum pump provides cooling circulating water for the laboratory reaction device, connect the inlet and outlet pipes of the reaction device with the inlet and outlet nozzles on the side of the vacuum pump, and turn on the circulating water switch to realize the supply of circulating cooling water.
4. The water of the vacuum pump should be replaced at least once a week, which can be adjusted according to the frequency of use. If the frequency of use is high, or the pumped gas is highly corrosive, causing water pollution, the time for changing the water should be shortened to keep the water in the tank clean, and the time can be extended. The service life of the circulating water aspirator vacuum pump.
Circulating water aspirator vacuum pump features:
1. Due to the water circulation operation, the water added to the water tank can be recycled, and the water saving effect is obvious.
2. Multifunctional comprehensive effect. In addition to providing vacuum conditions, this machine can also perform external circulation operations at the same time to provide circulating cooling water for the reaction device.
3. The circulating water aspirator vacuum pump is connected to the tap water source. By supplementing the water injection source in an appropriate amount, the temperature and water quality of the vacuum circulating water can be kept unchanged under the condition of continuous operation for a long time, which can ensure that the vacuum degree drops and realize the circulation of cooling water. supply.
4. The circulating water aspirator vacuum pump can work independently or simultaneously. Each suction nozzle is equipped with a vacuum gauge, which can easily observe the vacuum degree. There is a check valve on the suction pipeline, which can prevent the circulating water from flowing back into the vacuumed equipment when the machine is shut down outside of the vacuum operation.
Precautions for circulating water aspirator vacuum pump:
1. When using the circulating water aspirator vacuum pump, please abide by relevant regulations such as safety regulations, personal safety and accident prevention.
2. Please use an independent power outlet with protective grounding, and confirm that the protective grounding terminal has been reliably connected.
3. Please insert the power plug of the circulating water aspirator vacuum pump into the power socket, and please do not use a power supply other than the one specified.
4. Never plug or unplug the power plug with wet hands.
5. Do not damage, modify, pull, excessively bend or twist the power cord, and do not place heavy objects on the power cord.
6. Please place the instrument on a stable, clean, non-slip, dry and fireproof table.
7. Please do not block or cover the vents or cooling windows of the instrument.
8. Please do not place any irrelevant supplies on the circulating water aspirator vacuum pump.
9. If you find that the circulating water aspirator vacuum pump has a peculiar smell or abnormal noise (not including the sound of the water pump or vacuum pump working), you should immediately cut off the power supply, and then contact the after-sales service department as soon as possible.
10. If the circulating water aspirator vacuum pump is not used for a period of time, the power cord plug should be disconnected from the power supply. Drain the water in the storage tank.
11. Do not place the device near heat sources.
12. Do not disassemble and adjust the parts of the instrument at will. When the spare parts are damaged, please use only the original spare parts for replacement.
13. When the equipment fails, the power supply should be cut off in time, and the factory should be contacted for maintenance guidance or returned to the factory for maintenance at the first time.
Technical Parameter
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Model |
SHZ-D(Ⅲ) |
SHZ-D(Ⅲ) |
four-meter,four tap |
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With machine Performance |
Power |
W |
180 |
370 |
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Voltage |
V/Hz |
～220/50 |
～220/50 |
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Flow |
L/min |
60 |
60 |
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Lift |
M |
8 |
8 |
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Body material |
Anti-corrosion/1Cr18 |
Anti-corrosion |
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The machine performance |
Max. pressure |
MPa |
0.098 |
0.098 |
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Sucking rate for single tap |
L/min |
10 |
10 |
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Quantity of tap PPCS |
2 |
4 |
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Tank capacity |
L |
15 |
15 |
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Dimension(mm) |
400×280×420 |
400×280×420 |
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Weight |
15 |
15 |
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Ultimate vacuum. |
26KPa |
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Security performance |
Counte rcurrent prevent valve |
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TIPS: 110V/60Hz is available.
