Precautions for selection of Roots vacuum pump unit

Understand the composition of the extracted gas, the gas contains no condensable vapor, particle dust, corrosion and so on. When choosing a vacuum pump, it is necessary to know the gas composition and select the appropriate pump for the pumped gas. If the gas contains vapor, particles, and corrosive gases, it should be considered to install auxiliary equipment such as condenser, dust collector in the intake pipeline of the pump.

The working pressure of Roots vacuum unit should meet the requirement of vacuum equipment's limit vacuum and working pressure. Such as: a vacuum drying process requires 10 mmHg (absolute pressure) working pressure, the limit pressure of the selected vacuum pump should be at least 2 mmHg, preferably less than 1 mmHg. Usually the limit pressure of the pump is half to one order of magnitude higher than the working pressure of the vacuum equipment.

Correctly select the working point of Roots vacuum unit. The normal working range of Roots vacuum unit is from maximum suction pressure to limit pressure *5.

2BE3 Series Liquid Ring Vacuum Pump

2BV series Liquid ring vacuum pump

DLV Series Double Stages Water Ring Vacuum Pumps

2SK Liquid Ring Vacuum Pump

Water Ring Vacuum Pump Starting Mode

After long-term shutdown, the water-ring vacuum pump must rotate the coupling by hand for ten days before starting, so as to confirm whether the water-ring vacuum pump shuts off the cut-off valve on the intake manifold of the pump, and what is the proper way to start it?

Turn off the cut-off valve on the intake manifold of vacuum pump; If the exhaust pipe of the gas-water separator is equipped with the cut-off valve, it should also be turned off; The cut-off valve of the water supply pipeline that opens the omni-directional gas-water separator power supply pipeline leaks water to the height-width ratio of the overflow water pipe to the separation equipment; When the water of the gas-water separator reaches the level of the overflow water pipe gauge requiring the height-width ratio Start the motor when facing.

Open the shut-off valve on the exhaust pipe of the separating equipment, adjust the water flow from the separating equipment to underwater concrete by ball valve, so as to minimize the rated power consumption of the motor within the required technical range, and adjust the shut-off valve for feeding water to the separating equipment, so as to minimize the water flow consumption and ensure the technical standards stipulated by the pump.

Adjust the flow of water to the packing box, so as to ensure the sealing of the packing box by using at least the water flow consumption. When a mechanical pump is in extreme operation, it produces burst sound because of the physical effect in the pump, but the power consumption of the output does not increase as a result. When the burst sound occurs with the increase of the output power consumption, the parking inspection should be given when the pump works abnormally.

Vacuum Pump For Remove Hydrocarbon

Oil Lubricated Vacuum Pump In Rubber Molding Machine

Dry Vacuum Pump For Removing Air

Metallurgical Chemical Pump

Dry Screw Vacuum Pump Selection

Dry Screw Vacuum Pump Selection

Dry screw vacuum pump is a kind of mechanical equipment used for conveying or pressurizing fluid. There are many kinds of dry screw vacuum pump, such as centrifugal pump, pipeline pump, sewage pump, screw pump and so on. Today we are going to talk about the relevant knowledge of screw pump.

Dry screw vacuum pump has the characteristics of variable transmission, strong self-priming ability and reversibility. It is used to transport water, wet sludge and flocculant liquid in sewage treatment plant. When choosing screw pump, we should abide by the principles of economy, rationality and reliability. If the selection of screw pump is not thoughtful, it will cause a lot of trouble in the future use, management and maintenance. Therefore, when choosing dry screw vacuum pump, we should choose not only to ensure the smooth operation of production, but also to reduce the cost of repair.

Liquid Ring Vacuum compressor

Water ring vacuum pump

2BE1 Series Liquid Ring Vacuum Pump

VACUUM FURNACE

Stainless steel centrifugal pump

Stainless steel centrifugal pump

Stainless steel centrifugal pump is a centrifugal pump with compact structure, small volume, light weight, low noise, remarkable energy saving effect and convenient maintenance. It adopts standard vertical motor and fast loading mechanical seal, which is very convenient to replace. Stainless steel is the overflow part of stainless steel centrifugal pump.

The material is composed of organic acids, organic compounds, alkali, salt solution and so on. It can be transported between - 20 C and 100 C. It has good corrosion resistance.

Stainless steel centrifugal pump uses a new type of mechanical seal device, which can be used in a wide range of areas. For example, chemical industries such as chemistry, electricity, paper, food, pharmaceuticals, synthetic fibers and so on.

Liquid Ring Vacuum Pump

Roots Vacuum Pump

Dry Type Oilless Vacuum Pumps

Stainless steel screw pump

Stainless steel screw pump

Stainless steel screw pump is a new type of pump based on the principle of rotating meshing volume. The main working parts of stainless steel screw pump are eccentric screw (rotor) and fixed bushing (stator), because the special geometric starting point of these two parts forms a separate sealing chamber, the medium flows uniformly along the axis, the internal flow is small, the volume remains unchanged, the pressure of stainless steel screw pump is stable, and there will be no eddy current and stirring. The output pressure of each stage of stainless steel screw pump is 0.6 MPa, the lift is 60m (clear water), and the self-priming height is generally greater than 3m.

Because the stator is made of many kinds of elastic materials, this kind of pump has the characteristics that the general pump can not be competent for the transportation of high viscosity fluid and the transportation of medium containing rigid suspended particles or fibers, and its flow rate is proportional to the rotational speed. Transmission can be driven directly by coupling or by high-speed motor, triangular belt, gearbox and other devices. Stainless steel screw pump has the advantages of fewer parts, compact structure, small volume, simple maintenance, easily damaged parts of rotor and stator, simple structure, easy installation and disassembly.

Vacuum Pump In Oil Filter

Vacuum Pump For Waste Oil Treatment

Pressure Swing Adsorption Pump

Vacuum Refining Pump

Vacuum pump system knowledge

Vacuum pump system knowledge

What should we pay attention to when using the vacuum pump system? Today we will introduce this knowledge to you, hoping that through our introduction we can better help you understand.

Before the vacuum pump system is put into operation, it is necessary to carefully check whether the fasteners in various parts are loosened or not, and if loosening occurs, the tightening must be corrected. Before starting, the water tank must be filled with water, open the inlet valve of the pump, and then run the anti-corrosion pump. It is strictly prohibited that the pump is dehydrated, idle and reversed to prevent damage to the seal, impeller and other parts of the pump body. Before the vacuum unit stops, it opens the vent valve or reduces the vacuum to less than 0.092 MPa before stopping. In order to prevent backdraft damage to check valve caused by excessive vacuum. If the check valve fails, please open the check valve cover and remove debris.

When using steam-water series jet vacuum unit, the steam valve should be opened before starting. When stopping, the steam valve should be turned off before stopping, so as to prevent damage to the water jet vacuum pump caused by excessive temperature. When installing steam pipeline in vacuum unit, the pipeline must be kept level to prevent water accumulation in the pipeline, otherwise the vacuum effect will be affected. The circulating water in the water tank should be replaced or supplemented frequently, and the lower water temperature should be kept as far as possible, because excessive water temperature will affect the exhaust volume and vacuum degree.

Roots Vacuum Pump

air-cooled roots-liquid ring vacuum system

Open Cycle Water Ring Vacuum System

Closed Cycle Water Ring Vacuum System

Effect of Scale on Water Ring Vacuum Pump

Scale has a certain impact on water ring vacuum pump, because the working fluid (water) usually contains calcium, magnesium and other carbonates. When the water ring vacuum pump is running normally, the solubility of carbonate in water decreases with the increase of heating temperature. After long-term operation of the pump, the substance gradually crystallized and precipitated, and attached to the disc, impeller, pump body and other components.

After long-term operation of water ring vacuum pump, the scale in the pump is serious, which often leads to the reduction of the clearance between impeller and disk. During the operation of water ring vacuum pump, abnormal noise, excessive starting current, obvious decrease of suction and vacuum degree occur, which results in the decrease of vacuum pump efficiency.

For water ring pumps, there are many factors affecting their actual operation efficiency. Therefore, in the daily operation and maintenance process, it is necessary to establish perfect vacuum pump design, modification and selection, as well as operation and maintenance measures from the aspects of temperature and saturation of inhalation medium, type and temperature of working fluid, exhaust pressure, liquid level and flow rate of working fluid, in order to ensure the best work of vacuum system in hospital all the time. Working under conditions. At the same time, the mechanical efficiency of the vacuum system can be effectively improved in the actual operation process.

2SK Liquid Ring Vacuum Pump

SY/2SY Series Compressor

CL Sereis Cone Liquid Ring Vacuum Pump

AT/TC Series Cone Two Stage Water Ring Vacuum Pump