Why is the water ring vacuum pump dynamic and static ring dense book cover broken, and what is the r

Generally, it is a lack of water after running for a period of time and then adding water to burst.

Hello, there are many possible situations that may trigger this, and the following is a brief list for you.

1. In a vacuum, water will condense into ice. Especially for smaller pipes, check this.

2. Make sure that the vacuum pump is not pumping the system again!! Many customers often lead to the fact that the suction port does not suck in the gas. Whether it is blocked by the liquid level.

3. Check whether there is a check valve, if there is, check whether the check valve is not opened.

There are many reasons that cannot be listed one by one, please explain the actual working conditions, preferably with drawings.

Unload the air extraction hole, put on the vacuum gauge, check whether it is the cause of the vacuum gauge, if it is the cause of the vacuum pump, check the vacuum pump, and see if the water inlet is blocked. If the vacuum pump is fine, check the pumping system and find out the cause.

The working principle of the two-stage water ring vacuum pump is shown in Figure 1, the impeller (5) is eccentrically installed in the pump body (3), and when the impeller rotates, the water is thrown out to the surroundings by the action of centrifugal force, and a rotating water ring (6) is formed between the pump body wall and the impeller. The upper inner surface of the water ring is in contact with the impeller hub, and when the impeller rotates in a clockwise direction, in the process of the first half rotation, the inner surface of the water ring is gradually separated from the hub, and the cavity formed between the adjacent two blades gradually increases, and the pumped gas is continuously sucked into the cavity through the pump inlet pipe (4) and through the crescent-shaped suction hole (7); In the process of the second half of the rotation, the inner surface of the water ring is gradually close to the hub, the cavity between the two adjacent blades is gradually reduced, the gas is compressed, and the pressure is constantly increasing, when the pressure increases to greater than the external pressure, the gas is discharged, so as to continuously pump out the gas of the sealed container, so that it forms a certain vacuum.

The working principle of the water ring pump is shown on the diagram.

1.Exhaust pipe 2Air outlet 3Pump body 4Air intake pipe 5Impeller 6Water Ring 7Suction holes.

Atmospheric jet vacuum pump is a kind of jet pump, its working principle is briefly described as follows: due to the effect of two-stage water ring vacuum pump, the pumped container forms a certain vacuum, when approaching the ultimate vacuum of the pump, the atmospheric pump is turned on, at this time, the pressure difference between the outside atmosphere (or pressure gas) and the inlet pipe is very large, under the effect of this pressure difference, the atmosphere (or gas) is sharply pumped into the suction pipeline, through the nozzle of the atmospheric pump, the air flow velocity is further increased, so the pressure is rapidly reduced, As a result, a higher vacuum in the nozzle (obviously higher than the ultimate vacuum of the pump) is formed, which continues to draw the gas from the pumping system into the pump.

The pump body is filled with an appropriate amount of water as the working fluid. As the impeller rotates in the clockwise direction shown in the diagram, the water is thrown around by the impeller, and due to centrifugal force, the water forms a closed ring of approximately equal thickness determined by the shape of the pump chamber. The inner surface of the lower part of the water ring is exactly tangent to the impeller hub, and the upper inner surface of the water ring is just in contact with the tip of the blade (in fact, the blade has a certain insertion depth in the water ring).

At this time, a crescent-shaped space is formed between the impeller hub and the water ring, and this space is divided into a number of small cavities equal to the number of blades by the impeller. If the lower 0° of the impeller is taken as the starting point, then the volume of the small cavity of the impeller changes from small to large when 180° before rotation, and communicates with the suction port on the end face, the gas is inhaled at this time, and the small cavity is isolated from the suction port when the suction is finished; When the impeller continues to rotate, the small cavity changes from large to small, so that the gas is compressed; When the chamber communicates with the exhaust port, the lump gas is discharged from the pump.

To sum up, the water ring pump relies on the change of the pump chamber volume to achieve suction, compression and exhaust, so it belongs to the variable volume vacuum pump.

When the impeller rotates, the water that bends into the pump body of the water ring pump is thrown around by the impeller, and due to the action of centrifugal force, the water forms a closed water ring of equal thickness similar to the shape of the pump chamber. The upper inner surface of the water ring is tangent to the impeller hub, and the lower inner surface of the water ring is in contact with the tip of the blade. At this time, a crescent-shaped space is formed between the impeller hub and the water ring, and this space is divided by the impeller into several small cavities equal to the number of blades.

If the upper 0 ° of the impeller is taken as the starting point, then when the impeller rotates 180 ° before rotation, the volume of the small cavity gradually changes from small to large, the pressure is continuously reduced, and it is communicated with the suction port on the suction and exhaust plate, when the pressure in the small cavity space is lower than the pressure in the pumped container, according to the principle of gas pressure balance, the pumped gas is continuously pumped into the small cavity, and it is in the suction process at this time. When the suction is completed, it is isolated from the suction port, from the - to the - section, the volume of the small cavity is gradually decreasing, the pressure is constantly increasing, and it is in the compression process at this time, when the compressed gas reaches the discharge pressure in advance, it is exhausted in advance from the auxiliary exhaust valve. When the pressure of the gas is stronger than the exhaust pressure, the compressed gas is discharged from the exhaust port, and in the continuous operation of the pump, the suction, compression and exhaust process is continuously carried out, so as to achieve the purpose of continuous pumping.

The working principle of the two-stage water ring vacuum pump is shown in Figure 1, the impeller (5) is eccentrically installed in the pump body (3), when the impeller rotates, the water is thrown out to the periphery of the dust by the action of centrifugal force, and a rotating water ring (6) is formed between the inner wall of the pump and the impeller. The upper inner surface of the water ring is in contact with the impeller hub, and when the impeller rotates in a clockwise direction, in the process of the first half rotation, the inner surface of the water ring is gradually separated from the hub, and the cavity formed between the adjacent two blades gradually increases, and the pumped gas is continuously sucked into the cavity through the pump inlet pipe (4) and through the crescent-shaped suction hole (7); In the process of the second half of the rotation, the inner surface of the water ring is gradually close to the hub, the cavity between the two adjacent blades is gradually reduced, the gas is compressed, and the pressure is constantly increasing, when the pressure increases to the outside pressure, the gas is discharged, so as to continuously pump out the gas of the sealed container, so that it forms a certain vacuum.

The working principle of the water ring pump is shown on the diagram.

1.Exhaust pipe.

2.Air outlets.

3.Pump body. 4.Air intake pipe.

5.Impeller. 6.Water Ring.

7.Suction holes.

Atmospheric jet vacuum pump is a kind of jet pump, its working principle is briefly described as follows: due to the effect of the two-stage water ring vacuum pump, the pumped container forms a certain vacuum, when approaching the ultimate vacuum of the pump, the atmospheric pump is turned on, at this time, the pressure difference between the outside atmosphere (or pressure gas) and the inlet pipe is very large, under the effect of this pressure difference, the atmosphere (or gas) is sharply pumped into the suction pipeline, through the nozzle of the atmospheric pump, the air flow velocity is further increased, so the pressure is rapidly reduced, As a result, a higher vacuum in the nozzle (obviously higher than the ultimate vacuum of the pump) is formed, which continues to draw the gas from the pumping system into the pump.

When the multistage centrifugal pump is evacuated suddenly, the sealing chamber is in a negative pressure state, at this time, the static ring moves inward along the axial together with the moving ring under the action of the external atmospheric pressure, so that the static ring comes out of the rotating pin and closes, and under the drive of the moving ring that adjusts the rotation, it rotates intermittently. When the car is evacuated and stopped, the dynamic and static rings will return to their original positions under the action of spring force and medium, and it is difficult to align the position of the anti-re-pin at this time, so the anti-re-pin will tilt the top of the static ring, which breaks the mechanical seal and causes a sudden leakage.

The above is the analysis of Changsha Sanchang pump industry, if there are any questions, you can contact our factory.

Summary. Hello dear ! The main reasons for the shaft fracture of the water ring vacuum pump are as follows.

1 Overload: The water ring vacuum pump needs to bear a certain load when working, and if the load exceeds its design capacity, it will cause the shaft to break. It is caused by material blockage, liquid backflow, etc.

2 Shaft Material or Manufacturing Defects: If the shaft material of a water ring vacuum pump is not selected properly or if there is a manufacturing defect, the shaft will break. For example, the shaft material is not strong enough, the surface treatment is not correct, or there are cracks.

3 Fatigue of the shaft: Long runs and repetitive loads can lead to fatigue fracture of the shaft. It is caused by the improper design of the shaft, the long service life or poor working conditions.

4 Liquid Impact: Water ring vacuum pumps usually use a liquid ring to seal and cool, if the liquid is impacted or water hammered inside the pump, it will have a huge impact force on the shaft, resulting in breakage. 5 Improper Operation or Maintenance:

Improper operation or maintenance can also lead to shaft breakage. For example, frequent start-stops, excessively high operating temperatures, insufficient lubrication or improper lubrication methods, etc.

Hello dear ! The main reasons for the shaft fracture of the water ring vacuum pump are as follows. 1 Overload:

Water ring vacuum pumps are designed to withstand a certain amount of load, and if the load exceeds its design capacity, it can cause shaft breakage. It is caused by material blockage, liquid backflow, etc. 2 Axis Material or Manufacturing Defects:

If the shaft material of the bucket collapse ring vacuum pump is not selected properly or there is a manufacturing defect, the shaft will break. For example, the strength of the shaft material is not enough, the surface treatment is improper, or there are cracks. 3 Axis fatigue:

Prolonged operation and repetitive loads can lead to fatigue fracture of the shaft and empty dust circles. It is caused by the improper design of the shaft, the long service life or poor working conditions. 4 Liquid Shock:

Water ring vacuum pumps typically use a liquid ring to seal and cool, and if the liquid is impacted or water hammered inside the pump, it can cause a huge impact on the shaft, causing it to break. 5 Improper operation or maintenance: Improper operation or maintenance can also lead to shaft breakage.

For example, frequent start-stops, excessively high operating temperatures, insufficient lubrication or improper lubrication methods, etc.

In order to prevent shaft breakage, Kiss can take part in the following measures:- Ensure that the workload of the water ring vacuum pump is within its design capacity. - Choose the right shaft material and manufacturer.

Regularly inspect and maintain the water ring vacuum pump, including lubrication, cleaning, and adjustment. - Avoid liquid flushing and water hammer. - Follow relevant operating manuals and guidelines during operation and maintenance.