What should be checked before the roots blower is operated?

1. Before starting the roots blower, it is necessary to check the tightness of the bolts and nuts of each part of it, and if there is any looseness, it needs to be tightened in time.

2. Check the lubrication of the reducer, and add lubricating oil for lubrication in time to avoid causing jamming.

3. Check the tension of the belt and the deviation of the pulley, the belt of the roots blower can neither be too loose nor too tight during operation, so it is necessary to check the tension of the belt before starting.

4. Check whether the power supply voltage and frequency of the fan are normal.

5. Check whether the instruments of the roots blower are normal, such as oxygen meter, pressure gauge, etc., and repair them immediately if they are abnormal.

6. Open the valves on the outlet and pipeline of the fan that needs to be run, and the outlet valves of other fans that are not running are in the "closed" state to avoid overload operation of the fan and damage to the machine.

Every place should be carefully inspected, even if it is a dirty tooth, it must be cleaned, and some abnormal places must be repaired.

Check that the fixing and alignment pins of each part are not loose. There is no oil leakage in the roots blower body. There is no rust and spalling in the roots blower body.

Pay attention to the lubrication and heat dissipation phenomenon of roots blower. Pay attention to the quality of the lubricant. Always listen to the operation of a roots blower with or without noise.

Pay attention to whether the equipment is working in substandard conditions, and take care to add butter regularly. The overload of the roots blower is sometimes not immediately displayed, pay attention to the increase in exhaust pressure, bearing temperature and motor current to ensure that the machine is working properly. Before disassembling the machine, measure and record the matching dimensions of the machine and mark the parts to ensure that the original matching requirements are maintained after assembly.

New machines or overhauled roots blowers should be cleaned and operated according to the usage procedure, and it is recommended to replace all lubricating oil after 8 hours of operation. Maintenance and upkeep is based on specific conditions of use, for the development and maintenance of a reasonable maintenance system as well as for timely recording and documentation, and it is recommended that the bearings and associated wear parts be replaced once a year. Roots blowers are recommended to be repaired by a professional maintenance person.

It is said that in 1854, the American Roth brothers invented this fan in the process of designing the hydro wheeler, which had a great influence at the time, which also opened up a new way for the era of the fan. So how does a roots blower work? How is it different from other wind turbines?

Schematic diagram of the working principle of the three-lobe roots blower.

A roots blower is a positive displacement blower that passes through a pair of rotors'Meshing'**There is a gap between the subs, and they do not touch each other) to separate the air intake, and the rotor is driven by a pair of synchronous gears to move in the opposite direction, and the inhaled gas is pushed from the suction port to the exhaust port without internal compression. When the gas arrives at the exhaust port, it is pressurized by the return of high-pressure gas on the exhaust side, and the gas is transported.

Schematic diagram of the working principle of roots blower.

The common causes of roots blower failures may be as follows:1The mechanical feast is a good obstacle:

Tooth withering, gear wheel wear or breakage, bearing damage, loose gears and belts, loose parts, etc. 2.Electrical Fault:

Power failures, controller failures, circuit shorts, etc. 3.Insufficient or excessive airflow:

As a result, the fan cannot operate normally or does not reach the expected air volume and pressure. 4.Overheating or overloading:

As a result, bearings and gears are worn, insulation is reduced, and eventually the fan fails. The above are the common causes of roots blowers, which need to be analyzed in detail, and if there is a failure, it is necessary to overhaul or replace the faulty parts in time to avoid greater losses to the equipment.

Summary. Hello dear, glad to answer for you, dear roots blowers operate using the principle of isochoric compression, also known as external compression. The pressure increase is achieved by intermittently transporting a gaseous medium, such as the atmosphere, into the system.

By forcing a medium from atmospheric conditions into a system with a given resistance, I hope my answer will help you and wish you a happy and healthy life!!

How does a <> roots blower work?

Hello dear, glad to answer for you, dear roots blowers operate using the principle of isochoric compression, also known as external compression. The pressure increase is achieved by intermittently transporting a gaseous medium, such as the atmosphere, into the system. By forcing a medium from atmospheric conditions into a system with a given resistance, I hope my answer will help you and wish you a happy and healthy life!!

<> we found that there was an abnormal sound in the extension, but after opening it, we found that the dust removal was broken. Then how can the bearing be stuck after being replaced, and it can't be rotated, what is the situation?

If there is too much oil inside the release bearing of the kissing vehicle, the degree of cleanliness is low, which will cause the rotation to be stuck, and then there will be abnormal noise.

After it is installed, it will not rotate, so how to adjust the gap between the two gears of this gear?

Kiss 1Adjust the thickness of the gasket between the bearing cover and the base. 2.

The adjustment is made by pushing the gland pressed against the outer ring of the bearing by means of a screw mounted on the bearing cover. Adjustment of gear position: Because the installation form of gear and shaft is mostly used for one end of the shaft shoulder or step positioning, and the positioning of the other end is mainly used for spacer, so the position of the gear can only be adjusted by adding or subtracting the length of the spacer.

Pay attention to the oil level and color of the fuel tank and replace it in time.

Precautions for mechanical installation of roots blower: 1. The roots blower should be installed in a place with a strong and solid ground, and there should be sufficient leeway around it to facilitate inspection, maintenance and maintenance. 2. The foundation should be kept level under the base of the roots blower, and it is recommended to pad the shock-absorbing rubber at the four corners of the base or cast it with bolts to ensure that the roots blower runs smoothly and has little vibration.

3. When the roots blower is energized and put into trial operation, the motor belt must be removed to confirm that the vacuum pump is turned in accordance with the specified direction before it can be put into use, and the roots blower is reversed to inject oil. **Direction indicated by the protective cover) 4. For roots fans with cooling water, turn on the cooling water according to the regulations. 5. If the solenoid valve is installed at the mouth of the roots blower, the valve and the roots blower should act at the same time.

6. When the exhaust gas of the roots blower affects the working environment, the exhaust port can be installed to connect the pipe to lead away or install the oil mist filter. Excerpted from the instruction manual of Jingong three-leaf roots blower.

Add oil before starting, manually pull the lower belt to see if it can be rotated, and confirm that the forward and reverse rotation is almost the same.

Confirm that the electrical and piping systems are normal.

1. Before starting the machine, please be sure to open the manual venting valve (to prevent the impact of the starting pressure on the fan), check whether the oil in the oil tank has reached the oil level line (to prevent the oil from burning the gear bearing), and whether the fan is flexible to be operated by hand. Press start again, and then slowly close the vent valve, so that the roots blower reaches full load (remember not to overload operation) when shutting down, please be sure to open the vent valve first, and then press disconnect. In this way, the normal operation and use can prolong the service life of the fan.

Otherwise, the fan gears and bearings will be seriously impacted or even damaged. Clause.

2. Please regularly send someone to check the oil level of the fan oil tank (after the shutdown to see whether the oil level is in the center of the oil standard), if you find that the oil is lower than the middle of the oil standard. The oil mark is blocked with oil plug bolts, and the oil plug needs to be taken out and then filled into the oil tank when the oil is filled, and the organic oil flow out of the oil plug can be (also the oil level of the oil tank) and the oil plug bolt can be quickly tightened. Note:

For all types of roots blowers, it is recommended to use medium (heavy) duty gear oil No. 150 or 220).

3. If the bearing is lubricated with grease, it must be replenished every three months to six months. Check whether the inlet and exhaust pressure, ammeter, index, etc. are normal. Clause.

4. Please ensure that the air circulation in the fan room is smooth and the cooling measures are complete. This prevents the fan from clogging the inlet filter* or jamming the fan due to too much dust being sucked in. It is necessary to regularly clean the filter element (sponge or filter non-proof material) and the ash and dirt in the inlet air*, and replace the air filter element in time when it cannot be cleaned or cannot be cleaned.

Clause. 5. Please check and adjust the belt tension regularly. The contents include checking the fan bearings and gears for excessive wear or early damage; cleaning the fan oil tank, air cavity, sealing device; Correct the gap between various parts of the fan; Identify and solve problems in time to avoid more serious damage to the fan. Every three to four years, the belt must be adjusted or replaced if the belt runout amplitude is too large when the three-leaf roots blower is running.

Fans with direct transmission should also be regularly inspected for the wear of the elastic rubber ring connected to the coupling. Tighten the bolts of the motor fan base regularly, which can reduce the vibration of the fan. The three-leaf roots blower should be overhauled once a year, and all fan wearing parts and bearings should be replaced.

The roots blower, formerly also known as the Lu blower, may have been originally named Francis Roots, the inventor of this type of blower, and roots can be translated as roots, lutz, lodz, etc.

Roots blower is a positive displacement rotary blower, which uses two leaf-shaped rotors to compress and transport gas by relative motion in the cylinder. This compressor relies on a synchronous gear at the end of the rotor shaft to keep the two rotors engaged. Each concave curved part on the rotor forms a working volume with the inner wall of the cylinder, and the gas is taken away from the suction port during the rotor rotation process, and when it is moved to the vicinity of the exhaust port and connected with the exhaust port, due to the higher pressure of the gas backflow, the pressure in the working volume rises suddenly, and then the gas is transported to the exhaust channel.

The two rotors work alternately in turn. The two rotors are not in contact with each other, and they are sealed with tightly controlled clearances, so that the exhaust gas is not contaminated by lubricating oil.