The daily maintenance of roots pumps, what are the common faults that may exist in roots pumps

Just a few days ago, I sorted out the preventive maintenance card of the lower pump, and the content is probably for you, but this is the situation that the first-stage pump we use is a water ring pump, and other first-stage pump types are similar.

Wetting point: 3 sodium-based grease per year for the front and rear bearings of the pump body.

Motor Bearings 3 sodium-based grease per year.

Pump body 220 gear oil per year.

On a day-to-day basis (using departments).

Check whether there is any abnormality in the running sound of the roots spool valve vacuum unit.

Check whether the oil level of the vacuum pump is normal.

Check whether the oil quality of the vacuum pump is normal.

Check if the circulating water is normal.

Check whether the vacuum pump vibrates normally.

Check and drain the fluid in the vacuum buffer tank.

Inspection (Engineering Department).

Check whether the power cord and electrostatic grounding wire of the equipment are in good condition.

Check whether the bearing temperature is normal (<75).

Detect the operating noise of the vacuum unit. (less than 85 decibels).

Check the machine seal for leaks.

Check the lubricating oil level and oil quality of the vacuum unit.

Check the vacuum line for leaks (observe whether the vacuum degree meets the process requirements).

Check if the meter is within the expiration date.

Periodic maintenance (repair group).

Check and tighten anchor bolts and connecting bolts.

Check and replace the machine seal of the roots vacuum unit.

Inspect, clean, lubricate, and change the pump body lubricating oil.

Inspect, lubricate, and replace pump body bearings.

Inspect, lubricate, and replace motor bearings.

Test motor insulation resistance and electrostatic grounding resistance (><1) Check, clean and fasten electrical terminals.

Precautions in use:

1.Roots spool valve vacuum unit cannot operate under water shortage conditions;

2.If there is any abnormal sound during the operation of the equipment, it should be stopped immediately;

3.The equipment has to pump a large number of systems with acidic conditions for a long time, and the circulating water needs to be continuously replaced.

Of course, some of the tests in it require professional tools, so you can ask me again if you need them.

1: During the normal practical period, the fuel tank can not be short of oil (often observe the oil window to see the oil level), and the butter is also added regularly; 2: When you don't plan to put it away, pour a little oil from the air inlet (pour it when running), lubricate the impeller to prevent rust, do these two things, basically there is no problem There is no problem and do not understand the obligation to solve the problem.

Roots vacuum pump (referred to as roots pump) is a rotary variable capacity vacuum pump. It evolved from roots blowers. According to the different working range of roots vacuum pumps, they are divided into low-vacuum roots pumps that directly discharge the atmosphere; A kind of vacuum roots pump (also known as mechanical booster pump) and high vacuum multistage roots pump vacuum equipment.

Common faults and troubleshooting of roots pumps.

If the roots pump (mechanical booster pump) unit has been in operation for a period of time, and abnormal noise occurs in the roots pump, it may have the following reasons:

1. The starting pressure of the roots pump is too high, which causes the parts of the pump to be overheated and damaged (some mechanical booster pumps can also be started under atmospheric pressure after special design).

2. The large abrasive particles generated in the production process enter the roots pump and cause wear of the parts.

3. The pump is placed in the wrong position, for example, it is placed at an angle. The amount of oil in the lubricating oil inside the pump is not suitable.

All of the above reasons will lead to poor precision or serious contamination of the parts, stator, bearings and gears of the roots pump, which will cause abnormal noise in the operation of the roots pump.

When it is found that the pump produces abnormal noise during operation, it should be immediately checked whether the starting pressure of the pump meets the specified value, and the input current of the pump motor can be checked with the ammeter to check whether the rated value is met, and whether there is abnormal high or low. It is also necessary to check the condition of the lubricating oil in the pump and whether the pump is placed in a suitable position. Once a problem is discovered, take appropriate measures to solve it immediately.

When the roots vacuum pump works, the rotor and the rotor, the rotor and the pump body are not in contact with each other, so there is no direct wear, but because the gap is very small (generally mm), the transmission gear is worn after long-term operation, when the tooth side clearance is greater than the minimum clearance between the rotors, it will collide and fail, and the gear should be replaced. Generally, in one year of operation, it should be overhauled once to check the wear of gears and bearings, check the sealing device, replace the sealing ring (ring), check the rotor corrosion, rotor scaling, and the surface corrosion and scaling of the pump body. When the wear of the cleaning measurement exceeds the specified size, the clearance should be adjusted or the parts should be replaced.

Roots-type pump is a vacuum pump without internal compression, usually with a very low compression ratio, so high and medium vacuum pumps need backing pumps.

It is a vacuum pump that relies on the synchronous and counter-rotating pushing action of a pair of vane-shaped rotors in the pump chamber to move the gas and realize air pumping.

Roots vacuum pump refers to a mechanical vacuum pump with a pair of sole-shaped rotors with synchronous high-speed rotation, this pump can not be pumped alone, and the pre-stage needs to be equipped with oil seals, water rings, etc.

Its structure and working principle are similar to those of roots blowers, and its suction port is connected to the vacuum vessel or the main pumping pump of the vacuum system when working. The rotors of this vacuum pump do not touch each other or between the rotor and the pump casing.

Hello, I am glad to answer for you, roots pump needs to use the corresponding cleaning agent when cleaning, the common cleaning agents are as follows:1Cleaning agent:

Roots pump cleaner can use general cleaning liquids, such as diluted acid and alkali cleaning agents, petroleum cleaning agents, alcohol, etc., but pay attention to choosing cleaning solutions that will not corrode the pump material. 2.Purified water:

There are many precision parts inside the roots pump, and the use of pure water can avoid the damage of residues to the pump parts and ensure the cleaning effect. 3.Steam cleaning:

There are many dead corners inside the roots pump that are difficult to clean, and steam cleaning can be used to quickly clean these dead corners without causing damage to the pump parts. It should be noted that different types of roots pumps are made of different materials, and some pump materials have higher requirements for cleaning agents, so it is necessary to choose the appropriate cleaning agent according to the specific situation. Before cleaning, it is also necessary to disassemble and inspect the coarse pump parts to ensure that they have been emptied and powered off before cleaning, and to ensure the safety of personnel.

It is best to be cleaned and maintained by a professional service person.

Hello, I'm glad to answer for you: Dear According to your description, here is the answer for you to prepare before booting 1Check whether the water tank level of the water flush pump (backing pump) reaches more than 3 4 of the water tank, and make up for it if it is insufficient.

2.Check whether the water used in the water tank is clean, and do not allow the use of sewage containing sediment, so as not to block the pipeline, roots vacuum pump increases the wear of the impeller of the pump, increases the motor load and causes failure, affecting the service life of the water flushing pump. 3.

Check the height of the lubricating oil level in the middle pump and the main pump body, which must reach more than 3 4 of the oil window, and check the color of the lubricating oil at the same time. 4.Roots vacuum pump check whether the circulating cooling water channel of the intermediate pump and the main pump is intact, open the inlet and outlet valves of the circulating cooling water, and check whether the circulating cooling inlet and outlet water is normal.

5.Check whether the bottom of the middle pump is closed with a slow and rough grip on the flushing tank stool. 6.

Check whether the circuit of the vacuum pump unit is intact and whether the instructions of the control cabinet are normal. 7.Check whether the starting pressure of the intermediate pump and the main pump of the electrode contact pressure gauge of the vacuum pump unit is normal (the starting inlet pressure of the intermediate pump is above and the starting inlet pressure of the main pump is above).

8.After the above items are checked and confirmed, the vacuum unit can be started.

A roots pump is a volumetric rotary positive displacement pump that consists of two intermeshing impellers (roots impellers). The two impellers are driven by synchronous gears that rotate at high speed in the pump casing, and because of the small gap between the impellers, the gas sucked in by the pump can be sealed within the impeller gap and thus sucked in and compressed. By continuously rotating the impeller, the gas is compressed, resulting in a gas flow that is eventually discharged to the outlet of the pump.

Roots pumps are mainly used to suction gases such as air, nitrogen, carbon dioxide, etc. Due to its simple structure, oil-free lubrication, good durability, low noise, no pollution and other characteristics, it is widely used in industry, chemical industry, food, medical and other fields.

It should be noted that roots pumps have high requirements for tightness, because during operation, although the gap between the impellers is small, there can still be gas leaks. Therefore, it is necessary to pay attention to the tightness when using roots pumps to ensure the normal operation of the pump.

<> roots pump, divided into belt drive and gear reducer drive two forms. This pump has the characteristics of low speed, high efficiency, small size, large flow rate, low power consumption, strong self-priming ability, no oil drainage, and easy to use. It can be widely used for conveying stones.

Oil and petroleum products (gasoline replaceable copper pump blades) and the plant conveys a wide range of oils and liquids. Such as **, paint, lubricating oil, glass glue, oleic acid, toothpaste and light alkaline (soap processing) liquid, etc.; Food processing can convey a variety of things.

Liquids, such as soy milk, yeast, syrup, etc. The loading and unloading of various tankers and tankers is fast, efficient, easy to use, and can work in forward and reverse rotation.

Roots vacuum pump refers to a kind of variable capacity vacuum pump that is equipped with two vane-shaped rotors that rotate synchronously in opposite directions, and there is a small gap between the rotors and between the rotors and the inner wall of the pump casing without contacting each other.

Roots pump is a vacuum pump without internal compression, usually the compression ratio is very low, so high and medium vacuum pumps need a backing pump, relying on a pair of vane-shaped rotors in the pump chamber synchronous and counter-rotating pushing action to move the gas and realize the vacuum pump for pumping.

The maintenance of the roots vacuum pump is not to let him idle.

(1) Check the oil level every day, the oil level is too high, the temperature rises, the oil level is too low, resulting in poor lubrication. Check the quality of the oil once a month and replace it immediately if it deteriorates.

2) Check the temperature rise of the pump, the load of the motor and the temperature rise every day.

3) Regularly inspect the bearings, oil seals, gears and other components of the roots pump, and replace them if damaged.

Roots vacuum pump regular maintenance method: Roots pump often check the oil level position, and if it does not meet the requirements, it must be adjusted to meet the requirements. When the roots pump is running, the oil level to the center of the oil mark shall prevail.

The oil change period of the roots pump is considered according to the actual use conditions and whether it can meet the performance requirements, etc., and is determined by the user's discretion. Generally, when pumping clean and dry gas, it is recommended to change the oil once in about 100 hours of work. After the ferrous metal powder is not visible in the oil, the oil change period can be appropriately extended in the future.

Replace the roots pump oil regularly, and replace the seals is sufficient.

Roots pump often check the oil quality, and if the oil is found to be deteriorated, it should be replaced with new oil in time to ensure that the roots pump works normally. The roots vacuum pump was reassembled and reassembled with a "106" silicone rubber coating for the static sealing surface without gasket or sealing ring. Use a clean-sealed rubber seal and apply vacuum grease.

The sealing ring and flat surface of the vacuum pump with relief valve shall not be coated with grease. After reinstallation, it is necessary to carry out test operation and necessary performance tests, and can be installed and used only after normal.

Roots vacuum pumps need to operate at full volume levels. In contrast to rotary vane vacuum pumps, roots vacuum pumps do not have an internal compression function to compress the discharge pressure.

The maintenance method of roots vacuum pump is the roots vacuum pump because it is a belt transmission connection, although the balance connection test and belt connection test are strictly done at the time of delivery, but when the roots vacuum pump runs stably for almost 15-30 days, the site needs to be stopped in time for various necessary inspections, especially the tightness of the belt, must be carefully checked, the belt is loose, which will cause the operation of the roots vacuum pump to be difficult and cause unnecessary noise.

Maintenance of roots vacuum pumpThe structural principle of roots vacuum pump is rotary positive displacement vacuum pump. Its structural composition is based on the evolution of roots blowers. It first appeared in Germany in the forties to provide vacuum melting with a high pumping speed in the pressure range of 10 to 1000 pa.

The method of maintenance of the Rhodes vacuum pump is to maintain the accessories in the vacuum bag, and then play a good role in the maintenance.