Gas separation energy-saving centrifugal vacuum pump

Abstract

The invention discloses a gas separation energy-saving centrifugal vacuum pump, and particularly relates to the technical field of centrifugal vacuum pumps, the gas separation energy-saving centrifugal vacuum pump comprises a pump body, a flow guide separation assembly is arranged on the pump body, the flow guide separation assembly comprises a separation plate arranged in the middle of the pump body, and treatment cavities are formed in the two sides of the separation plate respectively. According to the vacuum pump, through the flow guide separation assembly arranged on the pump body, the vacuumizing function and the gas separation function are integrated. After mixed gas enters the treatment cavity through the gas inlet nozzle, in the rotating process of the first gas extraction block and the second gas extraction block, a centrifugal force field is formed through the first gas gathering cavity and the second gas gathering cavity, gas with the large density is thrown to the edges of the gas gathering cavities to be discharged preferentially, and gas with the small density is enriched in the center area and conveyed through the flow guide cavity opening; vacuum pumping and component separation can be synchronously completed without additional separation equipment, the defect that only vacuum pumping can be achieved and mixed gas cannot be separated in the prior art is overcome, and the system integration efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal vacuum pumps, and more particularly to a gas separation energy-saving centrifugal vacuum pump. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. Generally speaking, a vacuum pump is a device that uses various methods to improve, generate and maintain vacuum in a closed space. According to the working principle of the vacuum pump, vacuum pumps can basically be divided into two types, namely gas capture pumps and gas transmission pumps. They are widely used in metallurgy, chemical industry, food, electronic coating and other industries, and achieve vacuuming by relying on the principle of centrifugal force: the impeller in the equipment rotates at high speed (usually thousands to tens of thousands of revolutions per minute), generating centrifugal force on the inhaled gas, throwing the gas from the center of the impeller to the edge and discharging it through the exhaust port; at the same time, a low-pressure area is formed in the center of the impeller, which continuously inhales the gas to be treated, and eventually forms a vacuum environment (negative pressure state) in the system.

[0003] Among them, the patent with announcement number CN214304421U discloses an energy-saving centrifugal jet vacuum pump, including a base, the top of the base is fixedly connected to a motor, the bottom of the motor is fixedly connected to a first fixing seat, the surface of the first fixing seat is fixedly connected to a fixing nut, the fixing nut is made of stainless steel, and there are several fixing nuts symmetrically arranged, one side of the motor is fixedly connected to a placement box, the interior of the placement box is rotatably connected to a rotating shaft, the surface of the rotating shaft is inlaid with a connecting hole, the surface of the placement box is fixedly welded with a fitting module, and several fitting modules are evenly arranged, the bottom of the placement box is fixedly connected to a second fixing seat, one side of the placement box is movably connected to a cover plate, the top of the cover plate is fixedly connected to an air outlet, and the bottom of the cover plate is fixedly connected to an air inlet; When this structure is in use, a control module is provided to manually start and stop the vacuum pump at any time, saving energy used by the vacuum pump; a fixed block and a clip are provided for inlay connection, and the protrusion can make the installation more compact, and the surface of the protrusion is movably connected with a rubber pad, which has a better sealing effect. However, a single control of the start and stop of the vacuum pump cannot be used for mixed gases, such as multi-component gases with different densities and molecular weights, and the components can be separated by utilizing the difference in centrifugal forces exerted on different gas components in the centrifugal field. It is not easy to separate and collect them, and thus it is impossible to achieve simultaneous completion of vacuuming and gas separation. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a gas separation energy-saving centrifugal vacuum pump, which aims to solve the problems raised in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a gas separation energy-saving centrifugal vacuum pump, comprising a pump body, wherein the pump body is provided with a flow diversion and separation component; The diversion separation assembly includes a separation plate arranged in the middle of the pump body, and processing chambers are respectively provided on both sides of the separation plate, and a first gas extraction block and a second gas extraction block are respectively provided in each processing chamber; Several first gas gathering cavities are provided on the outside of the first gas extraction block, several second gas gathering cavities are provided on the outside of the second gas extraction block, a center hole is provided in the middle of the first gas extraction block, and a plurality of the first gas gathering cavities are respectively provided with guide cavity openings connected to the center hole, a center tube is provided in the middle of the center hole, and several mounting grooves are provided on the inner wall of the center hole, several diversion plates are fixedly provided on the outside of the center tube, and each of the diversion plates extends into the corresponding mounting groove, a gear ring is provided in the middle of the center tube and the second gas extraction block respectively, a horizontal axis is provided in the middle of the separation plate, extension rods are provided at both ends of the horizontal axis, and a gear is provided on each extension rod, the gear ring is located on the outside of the gear and meshes with the gear, a cover plate is provided at one end of the pump body, a servo motor is provided on the cover plate, and a rotating shaft installed at one end of the gear is provided at the output end of the servo motor.

[0006] Optionally, in a possible embodiment, the vertical cross-sectional shapes of the first gas extraction block and the second gas extraction block are both set to be triangular, and the outer sides of the first gas extraction block and the second gas extraction block are both set to be arc-shaped, each triangle of the first gas extraction block and the second gas extraction block respectively has two installation cavities, and a plurality of the installation cavities are respectively embedded with a stop block, and a sealing strip is provided between each two adjacent stop blocks, a solenoid valve is provided on one side of the pump body, a vertical pipe is provided on the top of the solenoid valve, a horizontal hole is provided in the middle of the separation plate, the solenoid valve is connected to the separation plate, an air inlet nozzle is provided on the side of the pump body away from the solenoid valve, an air outlet nozzle is provided on one side of the air inlet nozzle, the air inlet nozzle extends into the processing chamber where the first gas extraction block is installed, and the air outlet nozzle extends into the processing chamber where the second gas extraction block is installed, the top and bottom of the inner wall of the processing chamber are both set to be arc-shaped, and the gear and the gear ring are eccentrically set.

[0007] The technical effects and advantages of the present invention are as follows: The present invention integrates the vacuuming and gas separation functions into one by using a diversion and separation assembly provided on the pump body. After the mixed gas enters the processing chamber through the air inlet nozzle, the first and second gas extraction blocks rotate, utilizing the first and second gas collection cavities to form a centrifugal force field. Gases with higher density are thrown to the edges of the gas collection cavities and discharged first, while gases with lower density are concentrated in the central area and transported through the diversion cavity. This allows for simultaneous vacuuming and component separation without the need for additional separation equipment, resolving the drawback of existing technologies that can only vacuumize but cannot separate mixed gases, significantly improving system integration efficiency. The first and second gas extraction blocks of the present invention adopt a triangular vertical cross-section design with an arc-shaped outer side. When rotating, they form a dynamic closed space with the processing chamber on the arc-shaped inner wall. Combined with the gathering effect of the first and second gas collection chambers, the centrifugal force can enhance the separation effect of gases of different densities. At the same time, the diverter plate in the central hole can further divert and block the gas transported from the guide cavity to prevent secondary mixing of gases of different components. The separation accuracy can be flexibly controlled by adjusting the speed of the servo motor, which is suitable for processing mixed gases containing components of different densities. In the present invention, abutments are embedded in the mounting cavities of the first and second gas extraction blocks, and sealing strips are provided between adjacent abutments to ensure sealing between the extraction blocks and the inner wall of the processing chamber, thereby reducing gas leakage. The central tube is embedded in the mounting groove via a diverter plate, ensuring a stable connection between the central tube and the first gas extraction block, preventing structural loosening during high-speed rotation, and improving the long-term reliability of the equipment. The servo motor drives the gear to eccentrically mesh with the ring gear, driving the first gas extraction block and the second gas extraction block to rotate through the gear transmission. The gear and the ring gear are eccentrically arranged. When the first gas extraction block and the second gas extraction block move upward, the distance between the top of the first gas extraction block and the second gas extraction block and the processing chamber is squeezed, so as to squeeze the gas and improve the separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0009] Figure 1 It is the main view of the overall structure of the present invention.

[0010] Figure 2 Schematic diagram of the diversion separation component of the present invention.

[0011] Figure 3 It is a side view of the pump body, first gas extraction block, diverter plate and gear ring of the present invention.

[0012] Figure 4 Schematic diagram of the pump body, separation plate, air inlet nozzle, air outlet nozzle, solenoid valve and vertical pipe of the present invention.

[0013] Figure 5 Schematic diagram of the horizontal shaft, gear, rotating shaft and extension rod of the present invention.

[0014] Figure 6Schematic diagram of the first gas extraction block, the second gas extraction block, the diverter plate, the center tube and the gear ring of the present invention.

[0015] Figure 7 For the present invention Figure 6 Exploded diagram.

[0016] The figures are marked as follows: 1. Pump body; 2. Separation plate; 3. Processing chamber; 4. First gas extraction block; 5. Second gas extraction block; 6. First gas gathering chamber; 7. Second gas gathering chamber; 8. Guide cavity opening; 9. Center tube; 10. Gear ring; 11. Diverter plate; 12. Mounting groove; 13. Center hole; 14. Mounting chamber; 15. Abutment block; 16. Sealing strip; 17. Horizontal hole; 18. Horizontal axis; 19. Extension rod; 20. Gear; 21. Rotating shaft; 22. Cover plate; 23. Solenoid valve; 24. Vertical pipe; 25. Servo motor; 26. Inlet nozzle; 27. Outlet nozzle. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] As attached Figure 1-Figure 7 The gas separation energy-saving centrifugal vacuum pump shown integrates the vacuuming and gas separation functions through the diversion separation component provided on the pump body 1. After the mixed gas enters the processing chamber 3 through the air inlet nozzle 26, the first gas extraction block 4 and the second gas extraction block 5 use the first gas collection chamber 6 and the second gas collection chamber 7 to form a centrifugal force field during the rotation process. The gas with higher density is thrown to the edge of the gas collection chamber and discharged first, while the gas with lower density is enriched in the central area and transported through the diversion chamber port 8. The vacuuming and component separation can be completed simultaneously without additional separation equipment, which solves the defect of the existing technology that can only vacuumize but cannot separate the mixed gas, greatly improving the system integration efficiency, and the specific structural setting of the component is as follows; The diversion separation assembly includes a separation plate 2 arranged in the middle of the pump body 1, and a processing chamber 3 is provided on both sides of the separation plate 2, and a first gas extraction block 4 and a second gas extraction block 5 are provided in each processing chamber 3. Figure 3 、 4As shown in FIG6 , the extracted airflow is gathered through the processing chamber 3 so that the airflow is separated and processed by the first gas extraction block 4 and then transported to the second gas extraction block 5 for processing; a plurality of first gas gathering cavities 6 are opened on the outside of the first gas extraction block 4, a plurality of second gas gathering cavities 7 are opened on the outside of the second gas extraction block 5, a central hole 13 is opened in the middle of the first gas extraction block 4, and a plurality of first gas gathering cavities 6 are respectively provided with guide cavities 8 connected to the central hole 13, as shown in FIG6 . Figure 6 and 7 As shown, the arrangement of the first gas gathering chamber 6 and the second gas gathering chamber 7 facilitates the displacement of the first gas gathering chamber 6 and the second gas gathering chamber 7 when the first gas extraction block 4 and the second gas extraction block 5 rotate. The first gas gathering chamber 6 and the second gas gathering chamber 7 gather the extracted gas, which is easy for the mixed gas to enter. The gas with higher density is thrown to the edge of the first gas gathering chamber 6 and discharged first, and the gas with lower density is gathered in the central area of ​​the first gas gathering chamber 6 and transported through the guide cavity 8, and is separated and collected through a specific flow channel, thereby realizing the simultaneous completion of vacuuming and gas separation.

[0019] A central tube 9 is provided in the middle of the central hole 13, and a plurality of mounting grooves 12 are provided on the inner wall of the central hole 13. A plurality of diverter plates 11 are fixedly provided on the outer side of the central tube 9, and each diverter plate 11 extends into the corresponding mounting groove 12. Figure 3 、 6 As shown in Figure 7, the installation groove 12 is arranged to facilitate the central tube 9 to be embedded in the first gas extraction block 4 through the diverter plate 11, ensuring the stability of the central tube 9 installed in the first gas extraction block 4. At the same time, each diverter plate 11 can also divert and block the airflow delivered by the guide cavity 8; a gear ring 10 is respectively provided in the middle of the central tube 9 and the second gas extraction block 5, a horizontal axis 18 is provided in the middle of the separation plate 2, and an extension rod 19 is respectively provided at both ends of the horizontal axis 18, and a gear 20 is respectively provided on each extension rod 19, and the gear ring 10 is located on the outside of the gear 20 and meshes with the gear 20, as shown in the attached figure. Figure 2 and 5 As shown, the horizontal shaft 18 serves as the central shaft, which rotates through the horizontal shaft 18, the extension rod 19 and the gear 20, and the gear 20 is engaged with the ring gear 10, and then each ring gear 10 drives the central cylinder 9 and the second gas extraction block 5 to rotate respectively, and the central cylinder 9 drives the first gas extraction block 4 to rotate through the diverter plate 11, and the first gas extraction block 4 rotates to extract the external gas into the processing chamber 3; a cover plate 22 is provided at one end of the pump body 1, and a servo motor 25 is provided on the cover plate 22, and the output end of the servo motor 25 is provided with a rotating shaft 21 installed at one end of the gear 20, as shown in the attached figure. Figure 1 、 2 As shown in FIG5 , the servo motor 25 drives the shaft 21 to rotate, and when the shaft 21 rotates, the gear 20 is driven to rotate, so that each structure is linked; The vertical cross-section of the first gas extraction block 4 and the second gas extraction block 5 is set to a triangle, and the outer sides of the first gas extraction block 4 and the second gas extraction block 5 are set to an arc shape. Each triangle of the first gas extraction block 4 and the second gas extraction block 5 is respectively provided with two installation cavities 14, and a plurality of mounting cavities 14 are respectively embedded with a block 15, and a sealing strip 16 is provided between each adjacent two blocks 15, as shown in the attached figure. Figure 7 As shown, the outer sides of the first gas extraction block 4 and the second gas extraction block 5 are arc-shaped, so that the outer sides of the first gas extraction block 4 and the second gas extraction block 5 are both in contact with the inner wall of the processing chamber 3, and the triangular cross-sections of the first gas extraction block 4 and the second gas extraction block 5 are formed, so that after the first gas extraction block 4 and the second gas extraction block 5 rotate one circle, each surface of the outer side of the first gas extraction block 4 can form a closed space with the processing chamber 3, which is convenient for extracting gas and improving the extraction efficiency. The provision of the sealing strip 16 facilitates the first gas extraction block 4 and the second gas extraction block 5 to be in a sealed state when in contact with the inner wall of the processing chamber 3; A solenoid valve 23 is provided on one side of the pump body 1, a vertical pipe 24 is provided on the top of the solenoid valve 23, a horizontal hole 17 is provided in the middle of the separation plate 2, and the solenoid valve 23 is connected to the separation plate 2. Figure 4 As shown, the arrangement of the transverse hole 17 facilitates the transverse axis 18 to be placed horizontally on the separation plate 2, thereby ensuring the stability of the transverse axis 18 during rotation, and the arrangement of the solenoid valve 23 and the vertical pipe 24 adjusts the air intake of the vertical pipe 24, thereby facilitating the formation of a low-pressure area in the center of the pump body 1, so as to facilitate the continuous inhalation of the gas to be treated and form a vacuum environment in the device; an air inlet nozzle 26 is provided on the side of the pump body 1 away from the solenoid valve 23, and an air outlet nozzle 27 is provided on the side of the air inlet nozzle 26, the air inlet nozzle 26 extends to the processing chamber 3 where the first gas extraction block 4 is installed, and the air outlet nozzle 27 extends to the processing chamber 3 where the second gas extraction block 5 is installed, as shown in the attached figure. Figure 4 As shown, the arrangement of the gas inlet nozzle 26 facilitates the extraction of gas through the gas inlet nozzle 26 when the first gas extraction block 4 rotates. The gas separated on the first gas extraction block 4 is filtered by the separation plate 2 and then extracted by the second gas extraction block 5 through the second gas collection cavity 7 and discharged through the gas outlet nozzle 27. The top and bottom of the inner wall of the processing chamber 3 are both set to be arc-shaped, and the gear 20 and the gear ring 10 are eccentrically arranged. Figure 2 and 3 As shown, the gear 20 and the ring gear 10 are eccentrically arranged, so that the gear 20 can contact the ring gear 10 when rotating. The ring gear 10 is subjected to traction and can swing up and down and rotate in the processing chamber 3, thereby driving the first gas extraction block 4 and the second gas extraction block 5 to move along the movement trajectory of each ring gear 10. When the first gas extraction block 4 and the second gas extraction block 5 move upward, they can squeeze the distance between the top of the first gas extraction block 4 and the second gas extraction block 5 and the processing chamber 3, so as to squeeze the gas and improve the separation efficiency. The specific working principle is as follows: start the servo motor 25 on the cover 22, as shown in the attached figure. Figure 1 、 2 As shown, the output end of the servo motor 25 drives the shaft 21 to rotate, and the shaft 21 drives the gear 20 on the extension rod 19 to rotate. Figure 5 As shown; due to the eccentric meshing of the gear 20 with the center tube 9 and the ring gear 10 in the middle of the second gas extraction block 5, as shown in the attached Figure 2 、 3 As shown, when the gear 20 rotates, the center tube 9 and the second gas extraction block 5 are driven to rotate synchronously through the ring gear 10; the center tube 9 is embedded in the mounting groove 12 of the first gas extraction block 4 through the outer diverter plate 11, as shown in the attached figure. Figure 6 、 7 As shown, the first gas extraction block 4 is driven to rotate in the processing chamber 3 on one side of the separation plate 2.

[0020] The mixed gas to be processed enters the processing chamber 3 where the first gas extraction block 4 is installed through the gas inlet nozzle 26. Figure 4 As shown; when the first gas extraction block 4 rotates, the first gas collection cavity 6 on its outer side is as shown in the attached Figure 6 、 7 As shown, a centrifugal force field is generated with the rotation. After the mixed gas is sucked into the first gas gathering chamber 6, it is subjected to different centrifugal forces due to the density difference: the gas with higher density, such as particulate matter and heavy components, is thrown to the outer arc of the first gas gathering chamber 6 and discharged to the outside of the pump body along the inner wall of the processing chamber 3; the gas with lower density, such as light components, is enriched in the central area of ​​the first gas gathering chamber 6 and enters the central hole 13 in the middle of the first gas extraction block 4 through the guide cavity 8. Figure 6 shown.

[0021] The diverter plate 11 in the center hole 13 is as shown in the attached Figure 3 、 7 As shown in the figure, the light gas transported by the guide cavity 8 is separated and blocked to avoid mixing of different components. The separated gas passes through the horizontal hole 17 in the middle of the separation plate 2, as shown in the attached figure. Figure 4 As shown, the second gas extraction block 5 enters the processing chamber 3 on the other side of the separation plate 2; at this time, the second gas extraction block 5 is rotating with the gear ring 10, and the second gas collection chamber 7 outside the second gas extraction block 5 is rotating with the gear ring 10, as shown in the attached figure. Figure 6 As shown, a secondary centrifugal field is generated to further purify the incoming light gas, and the remaining trace heavy components are thrown to the edge of the second gas gathering chamber 7 and discharged, and the pure light gas is gathered in the center of the second gas gathering chamber 7.

[0022] The electromagnetic valve 23 adjusts the air pressure in the pump body 1 through the vertical pipe 24. Figure 4 As shown, the processing chamber 3 is continuously maintained in a low-pressure vacuum environment to ensure that external gas is continuously sucked in through the gas inlet nozzle 26; the pure gas processed by the second gas extraction block 5 finally passes through the gas outlet nozzle 27, as shown in the attached figure. Figure 4The discharge shown in the figure realizes the continuous operation of vacuuming, gas separation and purification discharge.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas separation energy-saving centrifugal vacuum pump, comprising a pump body (1), characterized in that: The pump body (1) is provided with a flow diversion and separation component; The diversion separation component comprises a separation plate (2) arranged in the middle of the pump body (1), processing chambers (3) are respectively arranged on both sides of the separation plate (2), and a first gas extraction block (4) and a second gas extraction block (5) are respectively arranged in each processing chamber (3); A plurality of first gas gathering cavities (6) are provided on the outer side of the first gas extraction block (4), a plurality of second gas gathering cavities (7) are provided on the outer side of the second gas extraction block (5), a central hole (13) is provided in the middle of the first gas extraction block (4), and a plurality of first gas gathering cavities (6) are respectively provided with flow guide cavities (8) connected to the central hole (13).

2. The gas separation energy-saving centrifugal vacuum pump according to claim 1, characterized in that: A central tube (9) is provided in the middle of the central hole (13), a plurality of mounting grooves (12) are provided on the inner wall of the central hole (13), a plurality of diverter plates (11) are fixedly provided on the outer side of the central tube (9), and each of the diverter plates (11) extends into a corresponding mounting groove (12).

3. The gas separation energy-saving centrifugal vacuum pump according to claim 2, characterized in that: A gear ring (10) is provided in the middle of the central tube (9) and the second gas extraction block (5), respectively. A transverse axis (18) is provided in the middle of the separation plate (2), and an extension rod (19) is provided at both ends of the transverse axis (18), and each extension rod (19) is provided with a gear (20), and the gear ring (10) is located outside the gear (20) and meshes with the gear (20).

4. The gas separation energy-saving centrifugal vacuum pump according to claim 3, characterized in that: A cover plate (22) is provided at one end of the pump body (1), a servo motor (25) is provided on the cover plate (22), and a rotating shaft (21) mounted on one end of the gear (20) is provided at the output end of the servo motor (25).

5. The gas separation energy-saving centrifugal vacuum pump according to claim 1, characterized in that: The vertical cross-sections of the first gas extraction block (4) and the second gas extraction block (5) are both triangular, and the outer sides of the first gas extraction block (4) and the second gas extraction block (5) are both arc-shaped. Each triangle of the first gas extraction block (4) and the second gas extraction block (5) is provided with two mounting cavities (14), and a plurality of the mounting cavities (14) are respectively embedded with a stop block (15), and a sealing strip (16) is provided between each two adjacent stop blocks (15).

6. The gas separation energy-saving centrifugal vacuum pump according to claim 1, characterized in that: A solenoid valve (23) is provided on one side of the pump body (1), a vertical pipe (24) is provided on the top of the solenoid valve (23), a horizontal hole (17) is provided in the middle of the separation plate (2), and the solenoid valve (23) is connected to the separation plate (2).

7. The gas separation energy-saving centrifugal vacuum pump according to claim 6, characterized in that: An air inlet nozzle (26) is provided on a side of the pump body (1) away from the solenoid valve (23), and an air outlet nozzle (27) is provided on one side of the air inlet nozzle (26). The air inlet nozzle (26) extends into a processing chamber (3) where a first gas extraction block (4) is installed, and the air outlet nozzle (27) extends into a processing chamber (3) where a second gas extraction block (5) is installed.

8. The gas separation energy-saving centrifugal vacuum pump according to claim 1, characterized in that: The top and bottom of the inner wall of the processing chamber (3) are both arranged in an arc shape, and the gear (20) and the gear ring (10) are eccentrically arranged.

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