What is the configuration of water ring vacuum pump

Water ring vacuum pump is one of the vacuum pumps. In fact, water ring pump was used as a self-priming pump before, but with the continuous research and improvement of people, its application has been very extensive. So what is the general configuration of water ring vacuum pump?

Water ring vacuum pump is mainly composed of impeller, pump body, suction and exhaust disc, water ring formed by water on the inner wall of pump body, suction port, exhaust port, auxiliary exhaust valve, etc. Because of such high-quality configuration, the pump can be widely used in many industrial processes, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture return and vacuum degassing.

Water Ring Vacuum Pump manufacturers

Roots Vacuum Pump

Piston Vacuum Pump

Vibration source of water ring vacuum pump unit

There are many kinds of vibration sources in the working process of water ring vacuum pump units. They are not only the vibration source of the pump itself rotating movement, but also the vibration excitation of the prime mover (such as motor, diesel engine, etc.). When the chemical pump fails, there is also an impact effect inside its components, and at the same time, the water flow will also have a certain impact effect. Here is a brief introduction.

So many vibration sources mixed together will inevitably affect each other, and the fault signal is often submerged in the background noise and interference, which brings great difficulty to the pump fault diagnosis. The existing signal analysis methods have not made a breakthrough in the separation of vibration signals from multiple excitation sources and the feature extraction of vibration signals with low signal-to-noise ratio, but still need to do more Step by step.

At present, people mainly use data-based machine learning method for pump fault classification. The characteristic of this method is that a large number of sample data is needed, but when the sample data is difficult to obtain, this method shows its limitations. Therefore, it is necessary to study a small sample fault pattern classification method with higher generalization ability, so that it can use limited data samples to get better diagnosis results.

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

How to adjust the vacuum degree of reciprocating vacuum pump

Reciprocating vacuum pump is a kind of common vacuum pump. When we use vacuum pump equipment, we have many rules and regulations, especially before the machine is running, we need to adjust its vacuum degree correctly. The vacuum degree will affect the normal operation of the equipment, so let's introduce how to adjust the vacuum degree of the equipment. Let's get to know:

1. Reciprocating vacuum pump itself does not have the function of adjusting the vacuum degree. Usually, users will use the way of adding valves to adjust the vacuum degree. We can add a pressure relief valve at the air end of the pump. When the vacuum degree in the pump is high, open the valve and the vacuum degree will drop.

2. With the intelligent information, many users choose to use the intelligent vacuum pump. The vacuum pump equipment is equipped with buttons, which can set the negative pressure, and the LCD panel displays the negative pressure, which can directly adjust the vacuum degree.

The above is the introduction of the vacuum degree adjustment method of reciprocating vacuum pump. In fact, the two adjustment methods are relatively simple and easy to learn. Therefore, in daily use, as long as we follow the process described above to operate. Only when the vacuum degree of the vacuum pump is well controlled can the normal operation of the equipment be guaranteed and the working efficiency be accelerated.

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

industrial vacuum pumps,vacuum furnaces

How to disassemble liquid ring vacuum pump

Liquid ring vacuum pump can be divided into single stage and double stage, and the difference between single effect and double effect. The single-stage and double-stage vacuum pumps refer to the stages of their impellers; the single / double effect refers to the way of their impellers / casings. The impellers of the single effect impeller vacuum pump rotate once and experience one suction / discharge of gas; the impellers of the double effect vacuum pump rotate once and experience two suction and discharge of gas.

All parts of the liquid ring vacuum pump shall be completely cleaned in the process of repair. The specific steps of disassembly and assembly are as follows: unscrew and remove the screws, and remove the diaphragm of the liquid ring vacuum pump cover and O-ring assembly along the axial direction. Generally, it is not necessary to remove the diaphragm from the pump cover, but if it is necessary to replace the diaphragm, clean or replace the valve plate, or if the cavitation maintenance pipe and O-ring are dropped, the diaphragm shall be removed from the pump cover.

When the diaphragm is disassembled from the pump cover, it can be pierced into a Φ 12M, l = 140mm round rod from the emptying port of the liquid ring vacuum pump cover. After the diaphragm is removed, the valve plate baffle, valve plate and cavitation maintenance pipe can be removed from the disc. Unscrew the bolts and remove the pump cover, diaphragm and O-ring together.

Screw out the screw, take out the impeller pressing plate and adjusting washer, pull out the impeller through pulling force, and remove the flat key from the main shaft. Remove the mechanical seal. In order to remove the mechanical seal more simply, the motor shaft before the mechanical seal can be coated with water and smooth (rubber bellows seal prevents oil or grease from being smooth). If there are calcifications such as scale on the electric shaft, the mechanical seal shall be removed after it is cleaned, otherwise the mechanical seal will be damaged simply.

What Is Dry Rotary Vacuum Pump

Alibaba Vacuum Pump

Dry Screw Vacuum Pump For PVC Plastic Profile Production Line 

Selected water ring vacuum pump

As for the water ring vacuum pump, to ensure its safe and stable operation, it is for power and stability. If it operates near the limit vacuum degree and Zui high exhaust pressure, the power of the vacuum pump is very low, and the operation is very unstable, so it is easy to have vibration and noise. And the water ring vacuum pump is easy to have cavitation phenomenon, resulting in damage to pump body, impeller and other parts, and even unable to work.

After having basic parameters, in the process of pump selection: if the vacuum degree or exhaust pressure required by the pump is not high, the single-stage pump can be selected preferentially; if the vacuum degree or exhaust pressure is high, the single-stage pump is often not satisfied, and it may be required that the pump still has large air extraction capacity and safe air extraction function under the condition of high vacuum degree, the double-stage pump can be selected.

If the vacuum degree is required to be more than - 710mmhg, the water ring pump unit of gas injector can be selected as the vacuum pumping equipment to improve the pumping speed of the equipment under low pressure and prevent the cavitation phenomenon of the water ring vacuum pump together. If it is only used for vacuum pump, it is better to choose single effect pump, with simple structure, easy protection and good cavitation resistance under high vacuum.

If still be used as compressor perhaps, choose double effect pump more appropriate. The double effect pump has the advantages of large air volume, small volume, active balance of radial force, less fatigue cracking of shaft and long service life.

Direct Coupled Water Liquid Ring Vacuum Pump

Water Ring Pump

Water Ring Vacuum Pump

The correct way to start water ring vacuum pump

Vacuum in engineering technology refers to a gas state in which the pressure in a given space is lower than a standard atmospheric pressure. Water ring vacuum pump has compact structure, reliable working balance and even flow. It is often used to transport or pump flammable, explosive and corrosive gases in chemical production. The efficiency of water ring vacuum pump is very low because the impeller stirs the liquid and loses a lot of energy. Next, the correct way to start the water ring vacuum pump is introduced.

1. Confirm that the water ring vacuum pump motor has been powered on and has the starting conditions. Contact the relevant post operators to confirm that the pump does not run and the turning gear is even and flexible. Open the pump inlet valve and open the 1 / 3 valve position, start the motor, and immediately open the water injection valve on the steam water separator after starting the motor, so that the water in the pump body and the steam water separator can reach the balance state; Stop the pump immediately in case of any of the following conditions: abnormal leakage, abnormal vibration, abnormal sound, peculiar smell, spark, flue gas, and continuous current.

2. Adjust the inlet and outlet valves of the pump, make sure that the vacuum degree at the inlet of the pump is within the required range, the outlet flow is normal, and the motor current is within the normal range. Adjust the pump flow, contact the operator of the relevant post, and make sure that the pressure at the inlet and outlet of the water ring vacuum pump is stable. Note: the water ring vacuum pump is strictly prohibited from idling without liquid to avoid damage to parts; it is strictly prohibited to start the pump with full water; after the water ring vacuum pump is started, it is strictly prohibited to run for a long time without opening the outlet valve.

3. Confirm and adjust after startup: confirm that the flow and pressure of the pump are normal and stable, confirm that the vibration of the pump is normal, confirm that the external temperature of the bearing box is not more than 70 ℃, confirm that there is no leakage, confirm that the temperature and pressure of the cooling water are normal, confirm that the current of the motor is normal, and confirm that the vibration and sound of the motor are correct

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

industrial vacuum pumps,vacuum furnaces