CN118030523A - Self-balancing single-stage single-acting liquid ring vacuum pump compressor - Google Patents
Self-balancing single-stage single-acting liquid ring vacuum pump compressor Download PDFInfo
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- CN118030523A CN118030523A CN202410375507.9A CN202410375507A CN118030523A CN 118030523 A CN118030523 A CN 118030523A CN 202410375507 A CN202410375507 A CN 202410375507A CN 118030523 A CN118030523 A CN 118030523A
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- liquid ring
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- 239000007788 liquid Substances 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 230000001502 supplementing effect Effects 0.000 claims abstract description 39
- 239000006260 foam Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/001—General arrangements, plants, flowsheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the field of vacuum pump compressors, and provides a self-balancing single-stage single-acting liquid ring vacuum pump compressor which comprises a motor, a main shaft, a base, a coupler, a rotating shaft, an impeller, a pump body, a rear pump cover, a front pump cover, a flow guide assembly, an air inlet pipe orifice and an air outlet pipe orifice, wherein an external machine is arranged outside the coupler, the external machine comprises a supporting cylinder, supporting legs, a mounting opening, a detection tool and a torsion sensor, a C-shaped curve water supplementing groove is arranged in the thick wall of the pump body, a plurality of foam breaking assemblies distributed along the inner wall of the pump body are arranged on the pump body in the water outlet direction of the water supplementing groove, the foam breaking assemblies comprise foam breaking steel wires parallel to the main shaft direction, and a supporting roller set is arranged at the positions of the front end and the rear end of the pump body. The device has reasonable design, can detect the torque of the main shaft and grasp the supplementing time of the liquid ring, is favorable for improving the balance of the main shaft and the rotor, is favorable for reducing cavitation and has longer actual service life, and is suitable for large-scale popularization.
Description
Technical Field
The invention belongs to the field of vacuum pump compressors, and particularly relates to a self-balancing single-stage single-acting liquid ring vacuum pump compressor.
Background
The water ring vacuum pump is a coarse vacuum pump, and the ultimate vacuum obtained by the water ring vacuum pump is 2000-4000 Pa, and the ultimate vacuum can reach 270-670 Pa after being connected with an atmospheric ejector in series. The water ring pump may also be used as a compressor, called a water ring compressor, which is a compressor belonging to low pressure. The water ring type vacuum pump can be divided into an SK/YK single-stage water ring pump and a 2SK/2YK double-stage water ring pump and a liquid ring type vacuum pump. The principle of the vacuum pumps is basically the same, and the vacuum pumps comprise three steps of air suction, compression and air exhaust, so that the air suction purpose is achieved. The single-stage single-acting liquid ring vacuum pump compressor has only one working cavity, and the pump body is filled with proper amount of water as working liquid, when the impeller rotates clockwise, the water is thrown to the periphery by the impeller, and due to the action of centrifugal force, the water forms a closed circular ring with approximately equal thickness, which is determined by the shape of the pump cavity, the inner surface of the upper part of the water ring is exactly tangential to the impeller hub, the inner surface of the lower part of the water ring is contacted with the telecentric end of the blades, a crescent space is formed between the impeller hub and the water ring, and the space is divided into a plurality of small cavities with equal number of blades by the impeller. If the upper part of the impeller is used as a starting point, the volume of the small cavity is changed from small to large when the impeller rotates for 180 degrees before the impeller rotates, and the small cavity is communicated with the air suction port on the end surface, at the moment, air is sucked, and when the air suction is finished, the small cavity is isolated from the air suction port; when the impeller continues to rotate, the small cavity is changed from large to small, so that the gas is compressed; when the small cavity is communicated with the exhaust port, the gas is exhausted out of the pump. The liquid ring vacuum pump compressor performs a suction action when acting as a vacuum pump and delivers gas to the compression system when acting as a compressor.
The existing liquid ring vacuum pump compressor generally comprises a motor, a pump body, a rotor, a pump cover and the like, as disclosed in the prior patent CN205330977U, a single-stage water ring vacuum pump comprises a pump cover, a flow guiding disc, an impeller, a pump body, a mechanical seal and a motor; the pump cover is connected with a fixing bolt, and the guide disc is fixed between the pump body and the pump cover; the guide disc is provided with a valve ball hole and is provided with a valve ball plate; the impeller is mounted on the shaft of the motor; the pump body is fixed on a flange of the motor to form an eccentric structure; the guide disc is arranged on the pump body, and the eccentric amount of the impeller in the pump body is 16mm. According to the utility model, through designing the eccentric structure of the impeller and the gap between the top end of the impeller and the pump body, the vacuum pump can improve the pumping efficiency of the pump under the condition of equal power loss. However, there are still some problems in practical use of the vacuum pump with the vacuum pump at present, including firstly, because the spindle of the liquid ring vacuum pump is arranged, in the process of working contact with liquid in the pump body, different force arms acting on the spindle can generate relatively regular torque differences, once the real-time physical quantity in the liquid changes, or the timing of water supplementing is not right, the spindle can be influenced to a certain extent, the volume of the water ring can be directly influenced, and if the change cannot be timely detected, the working efficiency of the vacuum compressor can be influenced, and meanwhile, the practical service life of the spindle and the rotor can be shortened; secondly, water is added into the pump body at present, a water pipe is adopted to be directly communicated with the inner cavity of the pump body, the water adding mode can generate disturbance on a rotor in operation, the balance condition inside equipment is further affected, and generated bubbles can generate cavitation on the rotor inside the pump body; thirdly, the water ring inside the pump body inevitably generates bubbles in the movement process, particularly in the position of the compression section, the bubbles burst under the action of pressure, and irreversible damage can be generated to the vane rotor for a long time, so that the service life of equipment is influenced.
Disclosure of Invention
Aiming at the technical problems of the liquid ring vacuum pump compressor, the invention provides a self-balancing single-stage single-acting liquid ring vacuum pump compressor which has reasonable design, can detect the torque of a main shaft and grasp the supplementing time of a liquid ring, is beneficial to improving the balance of the main shaft and a rotor, is beneficial to reducing cavitation and has longer practical service life.
In order to achieve the above purpose, the technical scheme adopted by the invention is that the self-balancing single-stage single-acting liquid ring vacuum pump compressor comprises a motor and a main shaft, wherein the motor is arranged on a base, a coupler is arranged at the end part of the main shaft, one end of the coupler is provided with a rotating shaft and an impeller, the impeller is arranged in a pump body, rims are respectively arranged at the front end and the rear end of the impeller, a rear pump cover and a front pump cover are respectively arranged at the front end and the rear end of the pump body, a flow guide assembly is arranged between the pump body and the front pump cover, an air inlet pipe orifice and an air outlet pipe orifice are arranged at the top of the front pump cover, an outer machine is arranged outside the coupler, the outer machine comprises a supporting cylinder and supporting legs, the two ends of the supporting cylinder are respectively connected with the motor and the rear pump cover, a pair of mounting holes are formed in the left side and the right side of the supporting cylinder, a detection tool is arranged in the mounting holes, a torsion sensor in transmission fit with the coupler is arranged at the outer side of the detection tool, a C-shaped pump body is arranged in the thick wall, a water supplementing groove is arranged in the pump body, a plurality of small-diameter-changing grooves are respectively communicated with the inner walls of the pump body, the water supplementing rollers are respectively arranged at the front end of the water supplementing rollers and the water supplementing rollers are communicated with the water tank in the water channel, the water channel is communicated with the water channel is gradually, and the water channel is communicated with the water channel through the water channel, and the water channel is communicated with the water channel.
Preferably, the inside of moisturizing groove is provided with curved regulating plate, the regulating plate is used for adjusting the distribution cross section of rivers in moisturizing groove, the axial length of regulating plate diminishes from top to bottom, regulating plate and moisturizing groove constitute out the water cavity, the axial length of play water cavity from top to bottom grow and its export width narrows gradually.
Preferably, the foam breaking assembly comprises a pair of connectors, the bottoms of the connectors are connected with threaded holes arranged in the pump body, and connecting holes are formed in the tops of the connectors and used for connecting foam breaking steel wires.
Preferably, the support roller set at the rear end of the pump body is arranged on the rear pump cover, and the support roller set at the front end of the pump body is arranged on the flow guide assembly.
Preferably, the flow guiding assembly comprises a flow guiding disc nested with the front end of the pump body, a half-moon-shaped air inlet hole is formed in the flow guiding disc, a plurality of air outlet holes are formed in the opposite sides of the air inlet hole in the flow guiding disc, an X-shaped partition plate is arranged between the air inlet hole and the air outlet holes, the flow guiding assembly further comprises an O-shaped sealing plate nested with the end part of the front pump cover, and rib plates corresponding to the partition plate are arranged on the inner side of the O-shaped sealing plate.
Preferably, the axial surface of the rotating shaft is matched with bearings arranged on the rear pump cover and the front pump cover.
Preferably, the impeller comprises a wheel sleeve, a plurality of eccentric wheel pieces are arranged on the wheel sleeve, and the root parts of the adjacent eccentric wheel pieces are in arc transition.
Preferably, one side of the mounting hole facing the supporting cylinder is a chord cutting surface, the detection tool is of a box shell structure, a top angle and a bottom angle of the detection tool are provided with shaped holes, the shaped holes are used for mounting bolts for connecting the supporting cylinder, the detection tool comprises chord cutting panels matched with two sides of the mounting hole, one side of the detection tool facing the supporting cylinder comprises an end plate matched with the surface of the mounting hole, a concave shell is arranged on the end plate, the upper end surface and the lower end surface of the concave shell are matched with the edge of the mounting hole in a supporting mode, and the concave shell is matched with the rolling surface of the coupler in a supporting mode.
Preferably, the concave shell is used for installing a detection end of the torsion sensor, one side of the concave shell is provided with a rectangular shell, one side of the rectangular shell, which is far away from the supporting cylinder, is an open end, the torsion sensor comprises a sensor main body matched with the open end, a detection shaft is arranged at the center of the sensor main body, a driving roller is arranged on the shaft surface of the detection shaft, and a rolling surface of the driving roller is in friction transmission with the coupling through a roller hole formed in the concave shell.
Preferably, two ends of the detection shaft are matched with optical axis holes arranged on the detection tool.
Compared with the prior art, the invention has the advantages and positive effects that:
1. According to the self-balancing single-stage single-acting liquid ring vacuum pump compressor provided by the invention, the torque at the coupler is detected by the torque sensor, and the change of the water ring in the pump body can be judged through the detection value, so that the time for supplementing water into the pump body can be accurately mastered, and the working efficiency of the vacuum pump compressor is improved; the detection tool can realize certain rolling support when detecting the coupler, and the balance performance of the impeller can be effectively improved by the support function of the support roller set; the water in the water supplementing tank can be ejected into the pump body by the moving water ring when the motion speed is obtained by utilizing the water supplementing pipe to supplement water in the water supplementing tank, the water quantity distribution is relatively uniform and mild, the disturbance influence on the water ring is small, and the balance of the work of devices in the pump body is ensured; the bubble breaking component can timely scrape a part of bubbles carried by the moving water ring, reduces the cavitation caused by the explosion of the bubbles on the surface of the impeller, and is beneficial to prolonging the actual service life of the impeller. The device has reasonable design, can detect the torque of the main shaft and grasp the supplementing time of the liquid ring, is favorable for improving the balance of the main shaft and the rotor, is favorable for reducing cavitation and has longer actual service life, and is suitable for large-scale popularization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a self-balancing single-stage single-acting liquid ring vacuum pump compressor (without motor, spindle and base);
FIG. 2 is an isometric view of a self-balancing single-stage single-acting liquid ring vacuum pump compressor;
FIG. 3 is a front view of a self-balancing single stage single acting liquid ring vacuum pump compressor;
FIG. 4 is a cross-sectional view of a self-balancing single stage single acting liquid ring vacuum pump compressor in the D-D direction;
FIG. 5 is a front view of the impeller, bubble breaking assembly and backup roll set distributed inside the pump body;
FIG. 6 is a front view of a baffle provided in an embodiment distributed inside a pump body;
FIG. 7 is an isometric view of an external machine, pump body and diaphragm provided in an embodiment;
FIG. 8 is an isometric view of an external machine according to an embodiment;
Fig. 9 is a front view of an external unit according to an embodiment;
Fig. 10 is an isometric view of a detection tool according to an embodiment;
FIG. 11 is an isometric view of a detection tool provided in an embodiment in another direction;
FIG. 12 is an isometric view of an adjustment plate provided by an embodiment;
FIG. 13 is a front view of an adjustment plate provided by an embodiment;
FIG. 14 is an isometric view of a bubble breaking assembly provided by an embodiment;
In the figures, 1, a motor; 2. a main shaft; 3. a base; 4. a coupling; 5. a rotating shaft; 6. an impeller; 61. a rim; 62. a wheel sleeve; 63. eccentric wheel pieces; 64. arc; 7. a pump body; 71. a rear pump cover; 72. a front pump cover; 721. an air inlet pipe orifice; 722. an air outlet pipe orifice; 73. a water supplementing tank; 74. a water supplementing pipe; 75. an adjusting plate; 8. a flow guiding assembly; 81. a deflector disc; 82. an air inlet hole; 83. an air outlet hole; 84. a partition plate; 85. an O-shaped sealing plate; 86. rib plates; 9. an external machine; 91. a support cylinder; 92. support legs; 93. a mounting port; 94. detecting a tool; 941. a shaped hole; 942. a chord-cut panel; 943. an end plate; 944. a concave shell; 945. a rectangular shell; 946. a roller hole; 947. a light shaft hole; 95. a torsion sensor; 951. a sensor body; 952. a detection shaft; 953. a driving roller; 10. a bubble breaking assembly; 101. breaking foam steel wires; 102. a connector; 11. a backup roll set; 12. and (3) a bearing.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are merely used herein to denote a correspondence with the upper, lower, left, and right directions of the drawing figures, and are not limiting on the structure.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
As shown in fig. 1 to 14, the self-balancing single-stage single-acting liquid ring vacuum pump compressor provided by the invention comprises a motor 1 and a main shaft 2, wherein the motor 1 is arranged on a base 3, a coupler 4 is arranged at the end part of the main shaft 2, a rotating shaft 5 and an impeller 6 are arranged at one end of the coupler 4, the impeller 6 is arranged in a pump body 7, rims are arranged at the front end and the rear end of the impeller 6, a rear pump cover 71 and a front pump cover 72 are respectively arranged at the front end and the rear end of the pump body 7, a flow guide assembly 8 is arranged between the pump body 7 and the front pump cover 72, and an air inlet pipe orifice 721 and an air outlet pipe orifice 722 are arranged at the top of the front pump cover 72. The motor 1, the spindle 2, the base 3, the coupling 4, the rotating shaft 5, the impeller 6, the rear pump cover 71, the front pump cover 72, the flow guiding assembly 8, the air inlet nozzle 721 and the air outlet nozzle 722 are in the prior art, and the description of this embodiment is omitted here. On the basis, considering the balance and cavitation problems of the pump body 7, the invention adds the torque sensor 95 which can detect the torque of the main shaft 2 and grasp the supplementing time of the liquid ring, the outer machine 9 and the supporting roller group 11 which are beneficial to improving the balance of the main shaft 2 and the rotor, and the bubble breaking assembly 10 which is beneficial to reducing the cavitation and prolonging the actual service life of the equipment, thereby improving the working efficiency and the comprehensive utilization rate of the equipment.
Specifically, the outer machine 9 is arranged outside the coupler 4, the outer machine 9 comprises a supporting cylinder 91 and supporting legs 92, two ends of the supporting cylinder 91 are respectively connected with a motor 1 and a rear pump cover 71, a pair of mounting holes 93 are formed in the left side and the right side of the supporting cylinder 91, a detection tool 94 is arranged in the mounting holes 93, the inner side of the detection tool 94 is in supporting fit with the coupler 4, a torsion sensor 95 in driving fit with the coupler 4 is arranged on the outer side of the detection tool 94, a C-shaped curve water supplementing groove 73 is formed in the thick wall of the pump body 7, the head end of the water supplementing groove 73 is communicated with the water supplementing pipe 74 which is vertically communicated with the pump cover and the pump body 7, the vertical caliber of the water supplementing groove 73 is gradually narrowed from top to bottom, the tail end of the water supplementing groove 73 is communicated with the inner cavity of the pump body 7, a plurality of foam breaking assemblies 10 distributed along the inner wall of the pump body 7 are arranged in the water outlet direction of the water supplementing groove 73, the foam breaking assemblies 10 comprise foam breaking steel wires 101 parallel to the main shaft 2, a supporting roller set 11 is arranged at the positions of the front end and the rear end of the pump body 7, the supporting roller set 11 comprises a plurality of supporting rollers, and the supporting rollers are gradually matched with the supporting rollers from the adjacent to the supporting rollers in sequence from the low to the high.
In the invention, the torque sensor 95 detects the real-time torque of the coupler 4, and the occurrence of obvious deviation from a regular value of the detection value can judge the occurrence of obvious shortage of water ring in the pump body 7, so that the time for supplementing water into the pump body 7 can be accurately grasped, and the balance of the impeller 6 and the air suction efficiency of the vacuum pump compressor are improved. The detection tool 94 provides a detection basis for the torsion sensor 95, and meanwhile, the inner side of the detection tool can carry out certain rolling support on the coupler 4, so that obvious radial runout and end runout of the coupler 4, the rotating shaft 5 and the impeller 6 are prevented, two sets of supporting roller sets 11 are additionally arranged in the pump body 7 to carry out wheel end support on the impeller 6, and the balance performance of the impeller 6 in the centrifugal rotation process can be effectively improved. Further, the water source is supplemented in the pump body 7 through the water supplementing pipe 74, the water supplementing groove 73 is used as a water conveying path, water flow can be uniformly dispersed in the water supplementing pipe 74 after the water source is obtained from the water supplementing pipe 74, the water flow dispersing surface is gradually expanded, under the condition that the unit flow is unchanged, the tail end of the water supplementing groove 73 forms a flowing water surface with a certain axial length and a certain width, and finally the flowing water surface is converged with a water ring under the action of gravitational potential energy, dynamic potential energy and injection of the water ring in the pump body 7. In this way, the water in the water supplementing groove 73 is injected into the pump body 7 from the water ring in motion after the motion speed is obtained, the water distribution in the process is relatively uniform and mild, the disturbance on the water ring is less, and the balance of the operation of the devices in the pump body 7, such as the rotating shaft 5 and the impeller 6, is guaranteed. In addition, on the path of the gas in the pump body 7 to be discharged, the bubble breaking assembly 10 scrapes a part of bubbles carried by the moving water ring in time, so that cavitation caused by the explosion of the bubbles on the surface of the impeller 6 is avoided, the working stability of the impeller 6 is improved, and the practical service life of the impeller 6 is prolonged.
In order to improve the uniformity of water flow distribution in the water supplementing groove 73, the invention is provided with a curved adjusting plate 75 in the water supplementing groove 73, the adjusting plate 75 is used for adjusting the distribution section of water flow in the water supplementing groove 73, the axial length of the adjusting plate 75 is reduced from top to bottom, the adjusting plate 75 and the water supplementing groove 73 form a water outlet cavity, the axial length of the water outlet cavity is gradually increased from top to bottom, and the outlet width of the water outlet cavity is gradually narrowed. In this way, the liquid entering the water supplementing groove 73 can be relatively uniformly distributed in the rear section of the water outlet cavity with a narrowed and lengthened caliber under the flow guiding action of the adjusting plate 75, and finally is ejected into the water ring in a relatively mild mode, the merging process of the supplemented water and the original water ring is relatively mild, the shock caused by the merging process is small, and the water supplementing efficiency and the working balance of the impeller 6 are guaranteed.
In order to improve the utilization rate of the foam breaking assembly 10, the foam breaking assembly 10 provided by the invention comprises a pair of connectors 102, wherein the bottoms of the connectors 102 are connected with threaded holes arranged in the pump body 7, and the top ends of the connectors 102 are provided with connecting holes for connecting foam breaking steel wires 101. The radial distance between the bubble breaking steel wire 101 and the impeller 6 and the tension degree of the bubble breaking steel wire 101 can be controlled by adjusting the actual depth of the connecting joint 102 in the screw hole, and the number of bubbles carried by the water ring can be effectively reduced under the action of the water ring, so that the cavitation erosion condition in the pump body 7 is reduced, the running balance of the impeller 6 can be improved to a certain extent, and the equipment is ensured to have good efficiency of manufacturing vacuum and compression environment.
In order to facilitate the disassembly and assembly of the support roller set 11, the support roller set 11 positioned at the rear end of the pump body 7 is arranged on the rear pump cover 71, the support roller set 11 positioned at the front end of the pump body 7 is arranged on the flow guiding component 8, the rear pump cover 71 and the flow guiding component 8 are equivalent to the integrated foundation of the support roller set 11, and two sets of integrated structures are formed after the support roller set 11 is installed on the rear pump cover 71 and the flow guiding component 8. In this way, the supporting roller set 11 can be synchronously mounted on the pump body 7 through the rear pump cover 71 and the flow guiding assembly 8, so that a reliable supporting environment is provided for the impeller 6, and the assembly and the disassembly are convenient.
In order to improve the effect of the flow guiding component 8 on blocking air in and out, the flow guiding component 8 provided by the invention comprises a flow guiding disk 81 nested with the front end of the pump body 7, a half-moon-shaped air inlet hole 82 is arranged on the flow guiding disk 81, a plurality of air outlet holes 83 are arranged on the opposite sides of the air inlet hole 82 on the flow guiding disk 81, an X-shaped partition plate 84 is arranged between the air inlet hole 82 and the air outlet holes 83, the flow guiding component 8 also comprises an O-shaped sealing plate 85 nested with the end part of the front pump cover 72, and a rib plate 86 corresponding to the partition plate 84 is arranged on the inner side of the O-shaped sealing plate 85. Wherein, O type sealing plate 85 carries out O type to the butt joint portion between the pump body 7 and the front pump cover 72, and baffle 84 and floor 86 can form two at least independent spaces relatively, and one is used for admitting air, and another is used for giving vent to anger, carries out effectual separation with the inlet and outlet, makes this equipment have stable and reliable single inlet and single outlet passageway, is favorable to guaranteeing this equipment and makes vacuum and compression environment's performance.
In order to improve the working balance of the rotating shaft 5, the invention provides two sets of supporting roller sets 11, the shaft surface of the rotating shaft 5 is matched with the bearing 12 arranged on the rear pump cover 71 and the front pump cover 72, the bearing 12 and the supporting roller sets 11 complement each other, and the rotating shaft 5 and the impeller 6 are in rolling support, so that the working performance of the device is improved.
Further, the impeller 6 provided by the invention comprises a wheel sleeve 62 in transmission connection with the rotating shaft 5, a plurality of eccentric wheel pieces 63 are arranged on the wheel sleeve 62, and the root parts of the adjacent eccentric wheel pieces 63 are in transition through an arc 64. The transition of the circular arc 64 at the root of the eccentric wheel 63 can promote water flow to form a continuous water ring rapidly after being stirred by the impeller 6, so that ineffective power consumption is reduced, cavitation generated by air flow at the eccentric wheel 63 can be reduced due to the characteristic of the relatively smooth root, and the area of heat concentration of the impeller 6 in continuous operation is reduced, thereby being beneficial to prolonging the actual service life of the impeller 6.
Regarding the outer machine 9, the outer machine 9 plays the most basic role of protection, and simultaneously provides a mounting foundation of the detection structure and a supporting foundation of the pump body 7; in order to improve the utilization rate of the detection tool 94, a chord-cut surface is arranged on one side of the mounting opening 93 for mounting the detection tool 94, which faces the supporting cylinder 91; the detection tool 94 provided by the invention is of a box shell structure, the top angle and the bottom angle of the detection tool 94 are provided with the shaped holes 941, the shaped holes 941 are used for installing bolts for connecting the support cylinder 91, the detection tool 94 comprises chord-cut panels 942 matched with two sides of the installation opening 93, one side of the detection tool 94 facing the support cylinder 91 comprises an end plate 943 matched with the surface of the installation opening 93, the end plate 943 is provided with a concave shell 944, the upper end surface and the lower end surface of the concave shell 944 are matched with the edge support of the installation opening 93, and the concave shell 944 is matched with the rolling surface support of the coupling 4. In this way, the mounting opening 93 provides a reasonable supporting surface for the detecting tool 94, so that the outer edge of the chord-cut panel 942 can form a relatively uniform outer curved surface with the supporting cylinder 91, and thus the torsion sensor 95 can be mounted with hidden characteristics, meanwhile, the concave shell 944 can be just clamped at the edge of the port of the mounting opening 93, and the connecting effect of the bolts can ensure that the detecting tool 94 has a stable mounting foundation and a stable working foundation. Meanwhile, the concave surface of the concave shell 944 is opposite to the coupler 4 after the concave shell is installed and set, so that rolling support is formed, the condition that the coupler 4 jumps in an end and diameter in a continuous working process is reduced, and the working stability of the equipment is improved.
Further, the concave shell 944 provided by the invention is used for installing the detection end of the torsion sensor 95, one side of the concave shell 944 is provided with a rectangular shell 945, one side of the rectangular shell 945 away from the supporting cylinder 91 is an open end, the torsion sensor 95 comprises a sensor main body 951 matched with the open end, a detection shaft 952 is arranged in the center of the sensor main body 951, a driving roller 953 is arranged on the axial surface of the detection shaft 952, and the rolling surface of the driving roller 953 is in friction transmission with the coupling 4 through a roller hole 946 formed in the concave shell 944. In this way, the detecting tool 94 can be not only the seal of the supporting cylinder 91, but also an integrated structure, such as a concave shell 944 can roll and support the outer side surface of the coupling 4, and provide a transition port of the driving roller, and the outer side of the rectangular shell 945 is also used for clamping the sensor main body 951, so that the detecting tool is multifunctional, ingenious in design, high in utilization rate and high in practicability.
In order to improve the working stability of the torsion sensor 95, the two ends of the detection shaft 952 are matched with the optical axis holes 947 arranged on the detection tool 94, and the hole walls of the optical axis holes 947 are highly polished and can serve as bearing bushes, so that the stability of the torsion sensor 95 is improved.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a self-balancing single-stage single-acting liquid ring vacuum pump compressor, includes motor and main shaft, the motor sets up on the base, the tip of main shaft is provided with the shaft coupling, the one end of shaft coupling is provided with pivot and impeller, the impeller sets up in the pump body and both ends all are provided with the wheel rim around it, both ends are provided with back pump cover and front pump cover respectively around the pump body, be provided with the water conservancy diversion subassembly between pump body and the front pump cover, the top of front pump cover is provided with inlet pipe mouth and outlet pipe mouth, its characterized in that, the outside of shaft coupling is provided with outer machine, outer machine includes supporting cylinder and supporting leg, the both ends of supporting cylinder are connected with motor and back pump cover respectively, the left and right sides of supporting cylinder is provided with a pair of installing port, be provided with the detection frock in the installing port, the inboard and the shaft coupling support cooperation of detection frock, the outside of detection frock is provided with the torsion sensor with shaft coupling transmission complex, be provided with C type curved basin in the thick wall, the water supply tank and the vertical intercommunication of water supply pipe and the wheel rim have the water supply pipe to be connected gradually the side by the broken side of the pump body and the pump body, the broken diameter of the pump body is connected to the side of the pump body is connected to the small-bore side of the pump body and is set up to the small-bore side of the pump body, the broken is connected to the small-bore is set up to the small-bore is parallel with the pump body and is connected to the small-bore side the pump body, and is set up to the small-bore and is connected to the pump end and has the small-bore and the diameter to the pump body.
2. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 1, wherein a curved adjusting plate is arranged in the water supplementing groove and used for adjusting the distribution section of water flow in the water supplementing groove, the axial length of the adjusting plate is reduced from top to bottom, the adjusting plate and the water supplementing groove form a water outlet cavity, the axial length of the water outlet cavity is gradually increased from top to bottom, and the outlet width of the water outlet cavity is gradually narrowed.
3. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 1, wherein the foam breaking assembly comprises a pair of connectors, the bottoms of the connectors are connected with threaded holes arranged in the pump body, and connecting holes are formed in the tops of the connectors and are used for connecting foam breaking steel wires.
4. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 1, wherein the back-up roller set at the back end of the pump body is disposed on the back pump cover, and the back-up roller set at the front end of the pump body is disposed on the flow guiding assembly.
5. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 1, wherein the flow guiding assembly comprises a flow guiding disc nested with the front end of the pump body, a half-moon-shaped air inlet hole is formed in the flow guiding disc, a plurality of air outlet holes are formed in the flow guiding disc on the opposite side of the air inlet hole, an X-shaped partition plate is arranged between the air inlet hole and the air outlet holes, the flow guiding assembly further comprises an O-shaped sealing plate nested with the end part of the front pump cover, and rib plates corresponding to the partition plate are arranged on the inner side of the O-shaped sealing plate.
6. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 1, wherein the axial surface of the rotating shaft is matched with bearings arranged on the rear pump cover and the front pump cover.
7. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 6, wherein the impeller comprises a wheel sleeve, a plurality of eccentric wheel pieces are arranged on the wheel sleeve, and the root parts of adjacent eccentric wheel pieces are transited through circular arcs.
8. The self-balancing single-stage single-acting liquid ring vacuum pump compressor according to any one of claims 1 to 7, wherein one side of the mounting opening facing the supporting cylinder is a chord-cut surface, the detection tool is of a box shell structure, a top angle and a bottom angle of the detection tool are provided with shaped holes, the shaped holes are used for mounting bolts for connecting the supporting cylinder, the detection tool comprises chord-cut panels matched with two sides of the mounting opening, one side of the detection tool facing the supporting cylinder comprises an end plate matched with the surface of the mounting opening, a concave shell is arranged on the end plate, the upper end surface and the lower end surface of the concave shell are matched with the edge of the mounting opening in a supporting mode, and the concave shell is matched with a rolling surface of the coupling in a supporting mode.
9. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 8, wherein the concave shell is used for installing a detection end of a torsion sensor, one side of the concave shell is provided with a rectangular shell, one side of the rectangular shell, which is far away from the supporting cylinder, is an open end, the torsion sensor comprises a sensor main body matched with the open end, a detection shaft is arranged in the center of the sensor main body, a driving roller is arranged on the shaft surface of the detection shaft, and the rolling surface of the driving roller is in friction transmission with the coupling through a roller hole formed in the concave shell.
10. The self-balancing single-stage single-acting liquid ring vacuum pump compressor of claim 9, wherein two ends of the detection shaft are matched with optical axis holes arranged on the detection tool.
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| CN202410375507.9A CN118030523B (en) | 2024-03-29 | 2024-03-29 | Self-balancing single-stage single-acting liquid ring vacuum pump compressor |
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| CN118481988A (en) * | 2024-07-15 | 2024-08-13 | 山东派金真空科技有限公司 | Multicylinder vacuum pump for vacuum glass furnace |
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| CN118030523B (en) | 2024-09-03 |
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