What should be done for routine maintenance of high-pressure Roots blower? Technical Maintenance
Many customers have purchased high-pressure roots blowers, and subsequent maintenance has not kept up with them, which has led to the failure of the machine. Let's make a simple explanation on the maintenance of high-pressure roots blowers in plain language.
First, let's understand what is Roots blower?
Roots blower was invented by George Kings, an Englishman, in 1849. Later, it was improved and promoted by the Roots Brothers, an American, and gradually became widely known and applied. Therefore, European and American countries also called it "rootsblower", which was translated into "Roots blower" when it was introduced into China.
Roots blower is a positive displacement blower, which separates the air inlet through the 'engagement' of a pair of rotors (there is a gap between the rotors, but they do not contact each other). The rotor is driven by a pair of synchronous gears, and moves in the opposite direction, pushing the inhaled gas from the suction port to the exhaust port without internal compression. When the gas reaches the exhaust port, it is pressurized due to the backflow of high-pressure gas at the exhaust side, thus completing the gas transmission.
The following figure is the product drawing of high-pressure Roots blower
Next, let's understand the difference between high-pressure Roots blower and low-pressure Roots blower?
Roots blower is divided into high pressure blower and low pressure blower. The main parameter of high pressure blower and low pressure blower is pressure. Take ordinary three blade roots blower as an example
① Pressure lower than 58.8kpa, including 58.8kpa
Below this pressure, above 9.8kpa, we call it the low-pressure three blade roots blower. The low-pressure three blade roots blower is air-cooled, and the low-pressure roots blower is usually single tank, which is somewhat different from the high-pressure three blade roots blower.
② Pressure between 58.8 and 98kpa
We call it high pressure roots blower. The high pressure roots blower is a double oil tank series. Water cooling is required under this pressure to ensure that all accessories can work normally.
③ Above 98kpa
Above 98kpa is also a series of high pressure roots blowers. Because of the high pressure, two-stage boosting is required. The two-stage boosting roots blowers are different from ordinary ones in structure.
The following figure is the actual picture of the high-pressure Roots blower factory. If you don't understand it, you can take a look High pressure Roots blower Product details!
Do you understand the above differences? If you don't understand, you can call the manufacturer of Roots blower at 0531-83663588.
Features of high-pressure Roots blower:
1. Structural stability
2. Large output air volume
3. Forced air supply
Application of high-pressure roots blower:
1. Sewage treatment
2. Pneumatic conveying
3. Aquaculture
4. Combustion boosting
5. Chemical industry
6. Electricity
Finally, let's talk about how to maintain the high-pressure Roots blower?
Because different types of high-pressure fan equipment have different internal accessories, some customers need to customize according to the site, so we need different methods of maintenance and operation, and also because the application occasions are different, so it is important to pay attention to daily maintenance. The following is a detailed explanation of the maintenance of conventional high-pressure Roots blower:
1. Check the fastening of each part and whether the locating pin is loose.
2. Whether there is water leakage and oil leakage inside the body of high-pressure roots blower.
3. There shall be no scaling, rust and scaling inside the body of high-pressure roots blower.
4. Pay attention to whether the cooling condition of the lubricating oil is normal, pay attention to the quality of the lubricating oil, often listen to whether the blower runs noisily, pay attention to whether the unit operates under the working condition that does not meet the requirements, and pay attention to regularly adding grease.
5. The overload of high pressure roots blower is sometimes not displayed immediately, so pay attention to the increasing trend of inlet and exhaust pressure, bearing temperature and motor current to judge whether the machine operates normally.
6. Before disassembling the machine, the matching dimensions of the machine shall be measured, recorded, and marked on the parts to ensure that the original matching requirements can be maintained after assembly.
7. For new machines or overhauled blowers, the oil tank should be cleaned and put into operation according to the operating procedures. It is recommended to replace all lubricating oil after 240 hours of operation.
8. The machine room shall be well ventilated and equipped with air exchange and heat dissipation equipment
9. Inlet air and gas temperature is not more than 40 ℃
10. Bearing temperature does not exceed 65 ℃
11. The rotation direction of the motor must follow the arrow direction on the fan belt housing and the cover plate on the side without pulley. Reverse rotation is strictly prohibited
12. During the normal operation of the fan, it is strictly prohibited to completely close the exhaust outlet valve and overload operation
13. The sewage and oil storage in the aeration tank are lower than the scale line of the vernier, the barometer has no pressure display, and the drip nozzle has no oil drops.
14. Check the oil storage capacity and oil dripping capacity of the oil tank every day. Each oil dripping nozzle should be controlled at 20-25 drops per minute. If the oil dripping is too much, it is easy to spray the oil into the sewage pool, causing waste. If the oil dripping is too little, it is easy to generate noise and cause the machine to heat and cylinder pulling
15. Before the new machine is used or shut down for more than 7 days, the air filter must be removed, a small amount of lubricating oil must be injected into the main machine, and the belt pulley of the main machine must be manually rotated to operate freely before it can be put into use.
16. The lubricating oil of the new high-pressure roots drum machine must be replaced after 240 hours of initial use, and the lubricating oil must be replaced in a timely manner when it is found that the high quality becomes black and thick. Replacement method: open the oil tank filler cap, remove the oil supply filter element, and clean the filter element to make the residual oil flow out quickly. Please blow the residual oil out of the oil filler with the hand pressure blower and air compressor, and colleagues clean the oil drip nozzle.
17. When disassembling the fan, the matching dimensions shall be measured, recorded, and marked on the parts to ensure that the original matching requirements can be maintained after assembly
18. A reasonable system shall be formulated for maintenance and overhaul according to the specific use. It is recommended to overhaul once a year and replace the lubricating oil and relevant vulnerable parts.
The above is the detailed maintenance of high-pressure Roots blower. If your equipment is customized, contact Roots blower manufacturer Professional technicians guide which parts need special maintenance. Finally, I wish everyone a healthy Dragon Boat Festival and everything goes well!
Word tag: high-pressure Roots blower
