German AIR DIMENSIONS pump AIR DIMENSIONS model AIR DIMENSIONS price

AIR DIMENSIONS pumps are devices or equipment that use mechanical, physical, chemical, or physicochemical methods to evacuate gas from a chamber to achieve vacuum. In simple terms, a vacuum pump is a device that uses various methods to improve, generate, and maintain vacuum in a closed space. Based on working principles, vacuum pumps can be basically divided into two types: gas capture pumps and gas transfer pumps. They are widely used in industries such as metallurgy, chemical engineering, food processing, and electronic coating.

AIR DIMENSIONS pump classification

1) Rotary vane vacuum pump: The rotor is installed in the pump housing with a certain eccentricity and is close to the fixed surface of the inner surface of the pump housing. Two (or more) vanes are installed in the rotor slots. When the rotor rotates, the vanes can slide back and forth along their radial slots and remain in contact with the inner wall of the pump housing at all times. These vanes rotate with the rotor, dividing the pump chamber into several variable volumes. 2) Sliding vane vacuum pump: A sliding valve is installed outside the eccentric rotor. The rotation of the rotor drives the sliding valve to slide and roll along the inner wall of the pump housing. The sliding valve rod on the upper part of the sliding valve can slide in a swingable sliding valve guide rail, dividing the pump chamber into two variable volumes. 3) Fixed vane vacuum pump: An eccentric rotor close to the inner surface of the pump is installed inside the pump housing. A radial sliding vane that remains in contact with the rotor surface is installed on the pump housing. When the rotor rotates, the vane slides up and down, dividing the pump chamber into two variable volumes. 4) Trochoidal vacuum pump: A rotor with a trochoidal profile is installed eccentrically in the pump chamber. It rotates along the inner wall of the pump chamber and divides the pump chamber into two variable volumes. 5) Multi-chamber rotary vane vacuum pump: Multiple independent working chambers of rotary vane vacuum pumps driven by the same motor are installed in parallel within one pump housing. 6) Dry screw vacuum pump: It is a variable displacement vacuum pump that does not use oil (or liquid) for sealing. 7) Liquid ring vacuum pump: A multi-blade rotor is installed eccentrically in the pump housing. When it rotates, it throws liquid (usually water or oil) against the pump housing to form a liquid ring concentric with the pump housing. The liquid ring and the rotor blades form several small volumes with periodically changing capacities, hence it is also called a rotary variable displacement vacuum pump. 8) Roots vacuum pump: Two two-lobe or multi-lobe rotors rotating synchronously in opposite directions are installed inside the pump. Certain gaps are maintained between the rotors and between the rotors and the inner wall of the pump housing. It belongs to the category of rotary variable displacement vacuum pumps. Mechanical booster pumps are vacuum pumps of this type. 9) Drag molecular pump: Gas molecules collide with high-speed moving rotors to gain momentum and are transported to the outlet; therefore, it is a momentum transfer pump. 10) Turbomolecular pump: The pump contains a slotted disc or bladed rotor that rotates between stator discs (or stationary vanes). The linear velocity at the circumference of the rotor is very high. This type of pump usually operates in the molecular flow regime. 11) Compound molecular pump: It is a compound molecular vacuum pump formed by connecting turbomolecular and drag molecular pumps in series.

AIR DIMENSIONS pump structural forms

Plunger pumps are divided into two representative structural forms: axial plunger pumps and radial plunger pumps. As radial plunger pumps are a new type of high-efficiency pump with high technical content, with the acceleration of localization, radial plunger pumps will inevitably become an important part of the application field of plunger pumps. A radial plunger pump is a plunger pump where the reciprocating motion direction of the piston or plunger is perpendicular to the drive shaft. Working principle of radial plunger pump: Drive torque is transmitted from the drive shaft to the star-shaped hydraulic cylinder block rotor via a cross coupling, and the stator is not subjected to other lateral forces. The rotor is mounted on the distribution shaft. Radially arranged plungers located in the rotor press tightly against the eccentric stroke stator through hydrostatically balanced slipper shoes. The plunger is connected to the slipper shoe via a ball joint and locked with a retaining ring. Two retaining rings hold the slipper shoes against the stroke stator. When the pump rotates, it presses against the inner surface of the stator relying on centrifugal force and hydraulic pressure. When the rotor rotates, due to the eccentricity of the stator, the plunger performs reciprocating motion, and its stroke is 4 times the eccentricity of the stator. The eccentricity of the stator can be adjusted by two plungers located radially opposite each other on the pump body. Oil inlet and outlet occur through flow channels in the pump body and distribution shaft, controlled by the suction port on the distribution shaft. Hydraulic pressure generated in the pump body is absorbed by hydrostatically balanced surfaces. The hydrostatic balance of friction pairs adopts an over-balance pressure compensation method, forming open-loop control. The bearings supporting the drive shaft only serve a supporting role and are not subjected to other external forces. In hydraulic systems: Axial plunger pumps operate by utilizing volume changes produced by the reciprocating motion of plungers parallel to the transmission shaft within plunger bores. Since the plungers and plunger bores of plunger pumps are circular parts, high-precision fits can be achieved during machining.

AIR DIMENSIONS pump selection

The function of a vacuum pump is to remove gas molecules from the vacuum chamber, reduce the gas pressure in the vacuum chamber, and achieve the required vacuum level. Broadly speaking, there is a wide range from atmospheric pressure to ultra-high vacuum, and no single vacuum system can cover this entire range to date. Therefore, to meet process indicators, work efficiency, and equipment service life requirements for different products, different vacuum system configurations need to be selected for different vacuum ranges. To achieve optimal configuration, the following points should be considered when selecting a vacuum system: First, the vacuum level required for each process must be checked and determined. Because each process has its applicable vacuum range, it must be carefully studied and determined. On the basis of determining the vacuum level required by the process, check the ultimate vacuum of the vacuum pump system, because the ultimate vacuum of the system determines the optimal operating vacuum of the system. Generally speaking, the ultimate vacuum of the system is lower than the operating vacuum of the system by 20%, and lower than the ultimate vacuum of the fore pump by 50%. Check and determine the type of gas to be evacuated and the pumping speed required by the process. Because if the type of gas being evacuated reacts with the liquid in the pump, the pump system will be contaminated. At the same time, appropriate evacuation time and the amount of gas generated during the pumping process must be considered and determined. Check and determine the time required to reach the required vacuum level, the flow resistance of the vacuum pipeline, and leakage. Consider the pumping speed required to maintain vacuum under certain process conditions after reaching the required vacuum level.

Weidou Intelligent Technology professionally sells German AIR DIMENSIONS vacuum pumps, AIR DIMENSIONS gear pumps, AIR DIMENSIONS diaphragm pumps, AIR DIMENSIONS centrifugal pumps, AIR DIMENSIONS plunger pumps, AIR DIMENSIONS vacuum pumps, AIR DIMENSIONS screw pumps, AIR DIMENSIONS submersible pumps, AIR DIMENSIONS peristaltic pumps, AIR DIMENSIONS lubrication pumps, AIR DIMENSIONS vane pumps, AIR DIMENSIONS metering pumps, AIR DIMENSIONS hand pumps, AIR DIMENSIONS drum pumps, AIR DIMENSIONS lobe pumps, AIR DIMENSIONS booster pumps, AIR DIMENSIONS liquid pumps, AIR DIMENSIONS air pumps, original imports from Germany. Welcome customers to inquire and order.