High-vacuum-degree bipolar water ring vacuum pump

Abstract

The invention belongs to the technical field of water ring vacuum pumps, particularly relates to a high-vacuum-degree bipolar water ring vacuum pump, and provides the following scheme aiming at the problems that the joint of an air outlet pipeline has no sealing guarantee and a flange is easy to loosen and leak air under the impact of high-speed air flow: the high-vacuum-degree bipolar water ring vacuum pump comprises a base; the front pump cover is fixedly connected to the top of the base; the rear pump cover is fixedly connected to the top of the base; the two air inlet pipes are arranged on the front pump cover and the rear pump cover respectively; the two air outlet pipes are respectively arranged on the front pump cover and the rear pump cover; the two output ends of the air inlet communicating pipe are fixedly connected with the corresponding air inlet pipes. According to the high-vacuum-degree bipolar water ring vacuum pump disclosed by the invention, sealing guarantee can be carried out on the connecting position of the air outlet pipe opening through the sealing stabilizing module, uniform sealing press fit of the air path connecting position under the impact of high-speed air is ensured, and equipment has stable sealing performance in long-term continuous operation.

Description

Technical Field

[0001] The present invention relates to the technical field of water-ring vacuum pumps, and particularly to a high-vacuum bipolar water-ring vacuum pump. Background Art

[0002] A water-ring vacuum pump is a rough vacuum pump. An eccentric rotor with fixed blades is installed inside the water-ring vacuum pump. It throws water towards the stator wall, and the water forms a liquid ring concentric with the stator. The liquid ring and the rotor blades together form a rotary variable-volume vacuum pump with a variable volume; the water-ring pump was initially used as a self-priming water pump and then gradually used in many industrial sectors such as petroleum, chemical industry, machinery, mining, light industry, medicine, and food. In many technological processes of industrial production, such as vacuum filtration, vacuum water intake, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum rewetting, and vacuum degassing, the water-ring pump has been widely used.

[0003] In the prior art, there is no sealing guarantee at the connection of the air outlet pipeline of the water-ring vacuum pump. Under the impact of high-speed air flow, it is easy to cause flange loosening and air leakage, increasing gas leakage and potential safety hazards during operation, making the equipment unable to have stable sealing performance during long-term continuous operation. Summary of the Invention

[0004] The present invention discloses a high-vacuum bipolar water-ring vacuum pump, aiming to solve the technical problem that there is no sealing guarantee at the connection of the air outlet pipeline in the background art, and it is easy to cause flange loosening and air leakage under the impact of high-speed air flow.

[0005] A high-vacuum bipolar water-ring vacuum pump proposed by the present invention includes a base; A front pump cover, which is fixedly connected to the top of the base; A rear pump cover, which is fixedly connected to the top of the base; An air inlet pipe, and two air inlet pipes are respectively arranged on the front pump cover and the rear pump cover; An air outlet pipe, and two air outlet pipes are respectively arranged on the front pump cover and the rear pump cover; An air inlet connecting pipe, and both output ends of the air inlet connecting pipe are fixedly connected to the corresponding air inlet pipes; An air outlet connecting pipe, and both input ends of the air outlet connecting pipe are fixedly connected to the corresponding air outlet pipes; A sealing and stabilizing module, the sealing and stabilizing module is located on the air outlet connecting pipe. The sealing and stabilizing module includes two mounting ring frames, both of the two mounting ring frames are fixedly connected to the outside of the air outlet connecting pipe, and two fixing rods are fixedly connected to both of the two mounting ring frames. A same upper pressing plate member is fixedly connected to the outside of the two fixing rods located on the same mounting ring frame.

[0006] In a preferred embodiment, two movable holes are provided on each of the two mounting ring frames. Threaded rods are rotatably connected in a plurality of the movable holes, and a lower pressing plate member is threadedly connected to the outside of the two threaded rods located on the same mounting ring frame. Both of the two lower pressing plate members slide on the outside of the corresponding fixed rods.

[0007] In a preferred embodiment, annular grooves are provided on each of the two mounting ring frames. Transmission gear rings are movably connected in the two annular grooves, and transmission gears are fixedly connected to the outside of a plurality of the threaded rods. A plurality of the transmission gears are meshed with the corresponding transmission gear rings respectively.

[0008] In a preferred embodiment, circular holes are provided on each of the two mounting ring frames. Movable rods are rotatably connected in the two circular holes. Rotating gears are fixedly connected to the outside of the two movable rods. The two rotating gears are meshed with the corresponding transmission gear rings respectively.

[0009] In a preferred embodiment, transmission wheels are fixedly connected to the outside of the two movable rods. A same transmission belt is connected to the outside of the two transmission wheels in a transmission manner. A general-purpose motor is fixedly connected to the top of one of the mounting ring frames. The output end of the general-purpose motor is fixedly connected to one end of the corresponding movable rod.

[0010] In a preferred embodiment, an air intake cleaning module is arranged inside the air intake connecting pipe. The air intake cleaning module includes a filter cartridge, and the filter cartridge is fixedly connected to the bottom inner wall of the air intake connecting pipe.

[0011] In a preferred embodiment, mounting holes are provided on the filter cartridge. A rotating rod frame is rotatably connected in the mounting holes. A fan blade is fixedly connected to the top of the rotating rod frame.

[0012] In a preferred embodiment, a mounting member is fixedly connected to the outside of the rotating rod frame. A plurality of springs are fixedly connected to the outer walls of the opposite sides of the mounting member at equal intervals. One end of the plurality of springs on the same side away from the mounting member is fixedly connected to the same scraping member.

[0013] In a preferred embodiment, a main pump body is arranged above the base. Distribution plates are fixedly connected to both ends of the main pump body. The two distribution plates are respectively fixedly connected to one side of the front pump cover and the rear pump cover. Rotating holes are provided on the front pump cover and the rear pump cover. A same pump shaft is rotatably connected in the two rotating holes. An impeller is fixedly connected to the outside of the pump shaft.

[0014] In a preferred embodiment, a driving motor is fixedly connected to the top of the base. Belt pulleys are fixedly connected to the output end of the driving motor and the outside of the pump shaft respectively. A same belt is connected to the outside of the two belt pulleys in a transmission manner.

[0015] As can be seen from the above, the high-vacuum bipolar water ring vacuum pump provided by the present invention can ensure the sealing of the connection of the gas outlet pipe through the sealing and stability module, ensuring uniform sealing and pressing at the gas path connection part under the impact of high-speed gas, preventing the flange connection between the gas outlet connecting pipe and the gas outlet pipe from loosening due to the impact of high-speed gas, avoiding the risk of high-speed gas leakage, and enabling the equipment to have stable sealing performance during long-term continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a high-vacuum bipolar water ring vacuum pump proposed by the present invention; Figure 2 FIG. 2 is a schematic diagram of the internal structure of the main pump body of a high-vacuum bipolar water ring vacuum pump proposed by the present invention; Figure 3 FIG. 3 is a schematic diagram of the structure at the gas outlet connecting pipe of a high-vacuum bipolar water ring vacuum pump proposed by the present invention; Figure 4 FIG. 4 is a schematic diagram of the structure of the sealing and stability module of a high-vacuum bipolar water ring vacuum pump proposed by the present invention; Figure 5 FIG. 5 is a schematic diagram of the structure at the mounting ring frame of the sealing and stability module of a high-vacuum bipolar water ring vacuum pump proposed by the present invention; Figure 6 FIG. 6 is a schematic diagram of the structure at the gas inlet connecting pipe of a high-vacuum bipolar water ring vacuum pump proposed by the present invention; Figure 7 FIG. 7 is a schematic diagram of the structure of the air inlet cleaning module of a high-vacuum bipolar water ring vacuum pump proposed by the present invention.

[0017] In the figure: 1, base; 2, front pump cover; 3, rear pump cover; 4, gas outlet pipe; 5, gas inlet pipe; 6, gas outlet connecting pipe; 7, gas inlet connecting pipe; 8, sealing and stability module; 801, mounting ring frame; 802, fixing rod; 803, upper pressing plate; 804, lower pressing plate; 805, threaded rod; 806, transmission gear ring; 807, transmission gear; 808, universal motor; 809, movable rod; 810, rotating gear; 811, transmission wheel; 812, transmission belt; 9, air inlet cleaning module; 901, filter cartridge; 902, rotating rod frame; 903, fan blade; 904, mounting piece; 905, spring; 906, scraping piece; 10, main pump body; 11, distribution plate; 12, pump shaft; 13, impeller; 14, drive motor; 15, belt pulley; 16, belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0019] A high-vacuum bipolar water ring vacuum pump disclosed by the present invention is mainly applied to the scenario where there is no sealing guarantee at the connection of the air outlet pipeline of the water ring vacuum pump, and flange loosening and air leakage are likely to occur under the impact of high-speed air flow.

[0020] Refer to Figures 1-7 , a high-vacuum bipolar water ring vacuum pump, comprising a base 1; A front pump cover 2, and the front pump cover 2 is fixedly connected to the top of the base 1; A rear pump cover 3, and the rear pump cover 3 is fixedly connected to the top of the base 1; An air inlet pipe 5, and two air inlet pipes 5 are respectively arranged on the front pump cover 2 and the rear pump cover 3; An air outlet pipe 4, and two air outlet pipes 4 are respectively arranged on the front pump cover 2 and the rear pump cover 3; An air inlet connecting pipe 7, and both output ends of the air inlet connecting pipe 7 are fixedly connected to the corresponding air inlet pipe 5; An air outlet connecting pipe 6, and both input ends of the air outlet connecting pipe 6 are fixedly connected to the corresponding air outlet pipe 4; A sealing and stabilizing module 8, the sealing and stabilizing module 8 is located on the air outlet connecting pipe 6, and the sealing and stabilizing module 8 includes two mounting ring frames 801, both of the two mounting ring frames 801 are fixedly connected to the outside of the air outlet connecting pipe 6, and two fixing rods 802 are fixedly connected to both of the two mounting ring frames 801, and the outside of the two fixing rods 802 located on the same mounting ring frame 801 is fixedly connected to the same upper pressing plate member 803.

[0021] Refer to Figure 1 , Figure 4 and Figure 5 , both of the two mounting ring frames 801 are provided with two moving holes, and threaded rods 805 are rotatably connected in the plurality of moving holes, and the outside of the two threaded rods 805 located on the same mounting ring frame 801 is threadedly connected to the same lower pressing plate member 804, and both of the two lower pressing plate members 804 slide on the outside of the corresponding fixing rod 802.

[0022] Refer to Figure 1 , Figure 4 and Figure 5 , both of the two mounting ring frames 801 are provided with annular grooves, and transmission gear rings 806 are movably connected in the two annular grooves, and transmission gears 807 are fixedly connected to the outside of the plurality of threaded rods 805, and the plurality of transmission gears 807 are meshed with the corresponding transmission gear rings 806.

[0023] Refer to Figure 1 , Figure 4 and Figure 5, circular holes are provided on both mounting ring frames 801, and movable rods 809 are rotatably connected in both circular holes. Rotating gears 810 are fixedly connected to the outer parts of both movable rods 809, and both rotating gears 810 are meshed with corresponding transmission tooth rings 806.

[0024] Refer to Figure 1 , Figure 4 and Figure 5 , transmission wheels 811 are fixedly connected to the outer parts of both movable rods 809, and the outer parts of both transmission wheels 811 are drivingly connected by the same transmission belt 812. A universal motor 808 is fixedly connected to the top of one of the mounting ring frames 801, and the output end of the universal motor 808 is fixedly connected to one end of the corresponding movable rod 809.

[0025] Specifically, after the sucked gas passes through the main pump body 10, it rushes out of the air outlet pipe 4 at high speed and enters the air outlet connecting pipe 6. The universal motor 808 is started to drive the movable rod 809 to rotate, driving the transmission wheel 811 to rotate. Through the transmission wheel 811 and the transmission belt 812, the two side movable rods 809 are driven to rotate synchronously, driving the two side rotating gears 810 to rotate. Through the meshing of the rotating gear 810 and the transmission tooth ring 806, the transmission tooth ring 806 is driven to rotate. Through the meshing of the transmission tooth ring 806 and the transmission gear 807, multiple transmission gears 807 are synchronously rotated, driving multiple threaded rods 805 to rotate synchronously, forcing the lower pressing plate member 804 to slide upward along the fixed rod 802. Through the extrusion of the lower pressing plate member 804 and the upper pressing plate member 803, the connection between the air outlet connecting pipe 6 and the air outlet pipe 4 is tightly connected.

[0026] In a specific application scenario, the universal motor 808 is started to rotate the movable rod 809. Through the transmission wheel 811 and the transmission belt 812, the two side movable rods 809 are driven to rotate synchronously, driving the two side rotating gears 810 to rotate. Through the meshing of the rotating gear 810 and the transmission tooth ring 806, the transmission tooth ring 806 is driven to rotate, thereby synchronously meshing and rotating multiple transmission gears 807, making multiple threaded rods 805 rotate synchronously, forcing the lower pressing plate member 804 to slide upward along the fixed rod 802. Through the extrusion of the lower pressing plate member 804 and the upper pressing plate member 803, the connection between the air outlet connecting pipe 6 and the air outlet pipe 4 is tightly connected. Through the sealing and stabilizing module 8, the connection of the air outlet pipe can be sealed and guaranteed, ensuring uniform sealing and pressing of the air path connection part under the impact of high-speed gas, avoiding the risk of high-speed gas leakage, and enabling the equipment to have stable sealing performance during long-term continuous operation.

[0027] Refer to Figure 1 , Figure 6 and Figure 7 , an air inlet cleaning module 9 is arranged inside the air inlet connecting pipe 7, and the air inlet cleaning module 9 includes a filter cartridge 901, and the filter cartridge 901 is fixedly connected to the bottom inner wall of the air inlet connecting pipe 7.

[0028] Referring to Figure 1 、 Figure 6 and Figure 7 , mounting holes are formed in the filter cartridge 901, and a rotating rod holder 902 is rotatably connected in the mounting holes. A top of the rotating rod holder 902 is fixedly connected with a fan blade 903.

[0029] Referring to Figure 1 、 Figure 6 and Figure 7 , an installation member 904 is fixedly connected to an outside of the rotating rod holder 902, and a plurality of springs 905 are fixedly connected to outer walls of opposite sides of the installation member 904 at equal intervals. One end of a plurality of springs 905 on the same side away from the installation member 904 is fixedly connected to the same scraping member 906.

[0030] Referring to Figure 1 and Figure 2 , a main pump body 10 is arranged above a base 1. Both ends of the main pump body 10 are fixedly connected with distribution plates 11. The two distribution plates 11 are respectively fixedly connected to one side of a front pump cover 2 and a rear pump cover 3. Rotating holes are formed in the front pump cover 2 and the rear pump cover 3, and the same pump shaft 12 is rotatably connected in the two rotating holes. An impeller 13 is fixedly connected to an outside of the pump shaft 12.

[0031] Referring to Figure 1 and Figure 2 , a driving motor 14 is fixedly connected to a top of the base 1, and belt pulleys 15 are fixedly connected to an output end of the driving motor 14 and an outside of the pump shaft 12. The same belt 16 is drivingly connected to an outside of the two belt pulleys 15.

[0032] Specifically, water is injected into the main pump body 10 from the front pump cover 2. The driving motor 14 is started to rotate the belt pulley 15, and the pump shaft 12 and the impeller 13 are driven to rotate through the belt pulley 15 and the belt 16. When the impeller 13 rotates, water is thrown around. Through the action of centrifugal force, a vacuum water ring is formed inside the main pump body 10 to extract gas. The gas to be extracted is pumped into the intake communication pipe 7, and impurities carried in the gas are filtered out through the filter cartridge 901 to prevent the gas carrying impurities from causing greater load and damage inside the device. At the same time, when the gas enters the intake communication pipe 7, the fan blade 903 drives the rotating rod holder 902 to rotate, so that the installation member 904 drives the scraping member 906 to scrape and clean the inner wall of the filter cartridge 901.

[0033] In a specific application scenario, the gas to be extracted is pumped into the intake connecting pipe 7. The impurities carried in the gas are filtered out through the filter cartridge 901, preventing the gas carrying impurities from causing excessive load and damage inside the device. At the same time, when the gas enters the intake connecting pipe 7, the fan blade 903 drives the rotating rod frame 902 to rotate, so that the mounting member 904 drives the scraping member 906 to scrape and clean the inner wall of the filter cartridge 901, avoiding the adhesion and accumulation of impurities and preventing blockage. Through the intake cleaning module 9, the filter cartridge self-cleaning mechanism can be driven autonomously by the kinetic energy of gas flow, effectively maintaining the smoothness of the filtration system, preventing the increase of pressure loss and energy consumption caused by impurity accumulation, and reducing the mechanical wear caused by impurity erosion.

[0034] Working principle: Water is injected into the main pump body 10 from the front pump cover 2. The driving motor 14 is started to rotate the pulley 15, and the pump shaft 12 and the impeller 13 are driven to rotate through the pulley 15 and the belt 16. When the impeller 13 rotates, the water is thrown around, and under the action of centrifugal force, a vacuum water ring is formed inside the main pump body 10 to extract the gas. The gas to be extracted is pumped into the intake connecting pipe 7, and the impurities carried in the gas are filtered out through the filter cartridge 901, preventing the gas carrying impurities from causing excessive load and damage inside the device. At the same time, when the gas enters the intake connecting pipe 7, the fan blade 903 drives the rotating rod frame 902 to rotate, so that the mounting member 904 drives the scraping member 906 to scrape and clean the inner wall of the filter cartridge 901. The filter cartridge self-cleaning mechanism is driven autonomously by the kinetic energy of gas flow, effectively maintaining the smoothness of the filtration system, preventing the increase of pressure loss and energy consumption caused by impurity accumulation, and reducing the mechanical wear caused by impurity erosion. After the extracted gas passes through the main pump body 10, it rushes out of the outlet pipe 4 at high speed and enters the outlet connecting pipe 6. The general motor 808 is started to drive the movable rod 809 to rotate, driving the transmission wheel 811 to rotate. The two sides of the movable rod 809 are driven to rotate synchronously through the transmission wheel 811 and the transmission belt 812, driving the two sides of the rotating gear 810 to rotate. Through the meshing of the rotating gear 810 and the transmission tooth ring 806, the transmission tooth ring 806 is driven to rotate. Through the meshing of the transmission tooth ring 806 and the transmission gear 807, multiple transmission gears 807 rotate synchronously, driving multiple threaded rods 805 to rotate synchronously, forcing the lower pressing plate member 804 to slide upward along the fixed rod 802. Through the extrusion of the lower pressing plate member 804 and the upper pressing plate member 803, the connection between the outlet connecting pipe 6 and the outlet pipe 4 is tightly connected, avoiding the loosening of the flange connection between the outlet connecting pipe 6 and the outlet pipe 4 caused by the impact of high-speed gas, ensuring the uniform sealing and pressing of the gas path connection part under the impact of high-speed gas, and enabling the device to have stable sealing performance during long-term continuous operation.

[0035] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A high-vacuum bipolar water ring vacuum pump, comprising a base (1); A front pump cover (2), the front pump cover (2) being fixedly connected to the top of the base (1); A rear pump cover (3), the rear pump cover (3) being fixedly connected to the top of the base (1); An intake pipe (5), two of the intake pipes (5) being respectively arranged on the front pump cover (2) and the rear pump cover (3); An exhaust pipe (4), two of the exhaust pipes (4) being respectively arranged on the front pump cover (2) and the rear pump cover (3); An intake communication pipe (7), both output ends of the intake communication pipe (7) being fixedly connected to the corresponding intake pipes (5); An exhaust communication pipe (6), both input ends of the exhaust communication pipe (6) being fixedly connected to the corresponding exhaust pipes (4); A sealing and stabilizing module (8), the sealing and stabilizing module (8) being located on the exhaust communication pipe (6), the sealing and stabilizing module (8) including two mounting ring frames (801), both of the mounting ring frames (801) being fixedly connected to the outside of the exhaust communication pipe (6), two fixing rods (802) being fixedly connected to both of the mounting ring frames (801), and an upper pressing plate member (803) being fixedly connected to the outside of the two fixing rods (802) located on the same mounting ring frame (801).

2. The high-vacuum bipolar water ring vacuum pump according to claim 1, characterized in that, Two of the mounting ring frames (801) are each provided with two moving holes, threaded rods (805) being rotatably connected in the plurality of moving holes, and a lower pressing plate member (804) being threadedly connected to the outside of the two threaded rods (805) located on the same mounting ring frame (801), both of the lower pressing plate members (804) sliding on the outside of the corresponding fixing rods (802).

3. The high-vacuum bipolar water-ring vacuum pump according to claim 2, characterized in that, Two of the mounting ring frames (801) are each provided with an annular groove, drive gear rings (806) being movably connected in the two annular grooves, and drive gears (807) being fixedly connected to the outside of the plurality of threaded rods (805), the plurality of drive gears (807) being meshed with the corresponding drive gear rings (806).

4. The high-vacuum bipolar water-ring vacuum pump according to claim 3, characterized in that, Two of the mounting ring frames (801) are each provided with a circular hole, and movable rods (809) being rotatably connected in the two circular holes, rotation gears (810) being fixedly connected to the outside of the two movable rods (809), the two rotation gears (810) being meshed with the corresponding drive gear rings (806).

5. A high-vacuum bipolar water ring vacuum pump according to claim 4, characterized in that, Drive wheels (811) are fixedly connected to the outside of the two movable rods (809), a drive belt (812) being drivingly connected to the outside of the two drive wheels (811), and a universal motor (808) being fixedly connected to the top of one of the mounting ring frames (801), the output end of the universal motor (808) being fixedly connected to one end of the corresponding movable rod (809).

6. The high-vacuum bipolar water-ring vacuum pump according to claim 1, characterized in that, An intake cleaning module (9) is arranged inside the intake communication pipe (7), and the intake cleaning module (9) includes a filter cartridge (901), the filter cartridge (901) being fixedly connected to the bottom inner wall of the intake communication pipe (7).

7. A high-vacuum bipolar water ring vacuum pump according to claim 6, characterized in that, The filter cartridge (901) is provided with a mounting hole, and a rotating rod frame (902) being rotatably connected in the mounting hole, a fan blade (903) being fixedly connected to the top of the rotating rod frame (902).

8. A high-vacuum bipolar water-ring vacuum pump according to claim 7, characterized in that An installation member (904) is fixedly connected to the outside of the rotating rod frame (902), and a plurality of springs (905) are fixedly connected to the outer walls of the opposite sides of the installation member (904) at equal distances. One end of the plurality of springs (905) on the same side, which is far away from the installation member (904), is fixedly connected to the same scraping member (906).

9. A high-vacuum bipolar water-ring vacuum pump according to claim 8, characterized in that, A main pump body (10) is arranged above the base (1). Distribution plates (11) are fixedly connected to both ends of the main pump body (10). The two distribution plates (11) are respectively fixedly connected to one side of the front pump cover (2) and the rear pump cover (3). Rotation holes are formed in the front pump cover (2) and the rear pump cover (3), and the same pump shaft (12) is rotatably connected in the two rotation holes. An impeller (13) is fixedly connected to the outside of the pump shaft (12).

10. A high-vacuum bipolar water-ring vacuum pump according to claim 9, characterized in that, A driving motor (14) is fixedly connected to the top of the base (1), and pulleys (15) are fixedly connected to the output end of the driving motor (14) and the outside of the pump shaft (12). The same belt (16) is connected to the outside of the two pulleys (15) in a transmission manner.

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