Vacuum degasser uses vacuum pump suction action to produce negative pressure in the vacuum cylinder, mud under the action of air pressure through the suction tube into the hollow shaft of the rotor, and then through the window around the hollow shaft to the tank wall spray. Due to the impact and the action of the separation wheel, the drilling fluid is separated into thin layers, the foam submerged in the mud breaks, the gas escapes, and is separated by the suction of the vacuum pump and the air-water separator. Since the main motor starts first and the impeller associated with the motor rotates at a high speed, mud can only enter the tank from the suction tube, not from the drainage tube.

The vacuum degasser exhausts the gas to the safe zone, and the mud is discharged by the impeller. As the main motor starts first, the impeller connected with the motor rotates at a high speed, and then the vacuum pump is started, so the mud can only enter the tank from the suction pipe, not from the discharge pipe. Turn off the equipment in the opposite order, that is, first turn off the vacuum pump motor, and then turn off the main motor to ensure the normal operation of the equipment.

Vacuum degassing plays an important role in the balance of drilling pressure in the solid control system of drilling fluid and can effectively remove harmful gas in mud. It is the secondary solid particle control equipment in the solid control system of drilling mud. An optional degasser plays a very important role in removing harmful gas leaching in drilling mud, restoring the proportion of mud, stabilizing the viscosity of mud and reducing drilling costs.

Structure characteristics of vacuum degasser

1, the use of vacuum pump suction, let the mud into the vacuum tank, use it to discharge the gas out of the vacuum tank, vacuum pump here have two different roles.

2, in the process of work is always in the isothermal state, suitable for inhaling flammable and explosive gas, reliable safety performance.

3. The mud is launched to the four walls at high speed through the window of the rotor. The bubbles in the mud are completely broken and the degassing effect is good.

4, the motor is biased, the center of gravity of the machine is reduced.

5. Belt drive is adopted to avoid the complexity of reducer.

6, the application of soda water separator will not cause water and gas to be discharged at the same time, so that the exhaust pipe is always smooth. In addition, can also be recycled to the vacuum pump water supply, saving water.

7. The suction tube is inserted into the mud tank. If the mud does not penetrate the air, it can be used as a high-power mixer.

Degasser design principle: degasser system is composed of many eddy current pipes, but also according to the amount of paint appropriate to turn off a few unused. The vortex tube is mounted on a rack and then connected to the inlet and outlet pipes. Each vortex tube has a separate discharge valve for emptying and flushing.

If we need to adjust the degasser in the process of use, then we need to determine whether the vortex tube can be opened or closed according to the output and the amount of bubbles, which can be operated in the process of recoating. Note that the amount of bubbles can also be adjusted and optimized through differential pressure during use.