CN116624397A - Multistage centrifugal pump convenient to adjust discharge capacity - Google Patents
Multistage centrifugal pump convenient to adjust discharge capacity Download PDFInfo
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- CN116624397A CN116624397A CN202310532872.1A CN202310532872A CN116624397A CN 116624397 A CN116624397 A CN 116624397A CN 202310532872 A CN202310532872 A CN 202310532872A CN 116624397 A CN116624397 A CN 116624397A
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- Prior art keywords
- centrifugal pump
- butt joint
- groove
- plate
- bolt
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Links
- 238000009423 ventilation Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 210000001503 joint Anatomy 0.000 claims description 80
- 239000002245 particle Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract description 10
- 238000007791 dehumidification Methods 0.000 abstract description 9
- 239000008187 granular material Substances 0.000 abstract description 7
- 239000003518 caustics Substances 0.000 abstract description 6
- 230000003628 erosive effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000007789 sealing Methods 0.000 description 10
- 230000017525 heat dissipation Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 244000144992 flock Species 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000007787 solid 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
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/706—Humidity separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a multistage centrifugal pump convenient for adjusting displacement, which comprises a centrifugal pump main body and a pipeline interface, wherein the pipeline interface is fixed on the upper side of the centrifugal pump main body, a transmission shaft is arranged at one end of the centrifugal pump main body, and a fixing plate is fixed on the lower side of the centrifugal pump main body. This multistage centrifugal pump convenient to adjust discharge capacity through limiting the connecting cover and installing in the centrifugal pump main part, makes the operational environment of multistage centrifugal pump keep clean, dry, ventilate, avoids the pump to receive the erosion of dust, steam, acid-base etc. corrosive substance, through the filter of installation, still keeps good ventilation and dispel the heat after making multistage centrifugal pump installation connecting cover, and is difficult for receiving the influence of outside dust flying wadding, and dehumidification granule can absorb the moisture in the outside air, when making multistage centrifugal pump installation connecting cover start the air discharge fan and ventilate and dispel the heat, is difficult for receiving the influence of moisture in the outside air.
Description
Technical Field
The invention relates to the technical field of multistage centrifugal pumps, in particular to a multistage centrifugal pump with discharge capacity convenient to adjust.
Background
The multi-stage centrifugal pump is a centrifugal pump which combines more than two centrifugal pumps with the same function, the fluid channel structure of the centrifugal pump is a mechanism in series, in particular a medium pressure relief port of a first stage is communicated with an inlet of a second stage, the medium pressure relief port of the second stage is communicated with an inlet of a third stage, so that the multi-stage centrifugal pump is formed, the multi-stage centrifugal pump can be used for conveying clean water with the temperature not higher than 80 ℃ or liquid with the physicochemical property similar to that of the clean water, solid particles cannot be contained in the liquid, the multi-stage centrifugal pump can be driven by low-pressure gas of a large-area piston to generate high-pressure gas on a small-area piston for compressing air or other gases, and the multi-stage centrifugal pump has the advantages of high efficiency, energy conservation, wide performance range, convenience in installation and maintenance and the like;
the method for simply changing the flow of the multistage centrifugal pump is to adjust the opening of the outlet valve of the water pump, the rotating speed of the multistage centrifugal pump is generally kept unchanged, the opening of the outlet valve of the multistage centrifugal pump is to change the position of a characteristic curve of a pipeline to change the working point of the pump, when the valve is closed, the local resistance of a pipeline is increased, the working point of the water pump moves leftwards, the corresponding flow is reduced, the resistance is infinite when the valve is fully closed, the flow is zero, the method is simple and convenient to operate, the flow is continuous, the arbitrary adjustment between a certain large flow and zero is realized, the additional investment is not needed, the application occasion is wide, and when the multistage centrifugal pump operates, the operating environment of the multistage centrifugal pump is kept clean, dry and ventilated to reduce the influence of external factors on the multistage centrifugal pump, and the pump is prevented from being corroded by dust, water vapor, acid and alkali and other corrosive substances.
Disclosure of Invention
The invention aims to provide a multistage centrifugal pump with conveniently-adjusted discharge capacity, so as to solve the problem that the pump needs to be prevented from being corroded by dust, water vapor, acid and alkali and other corrosive substances when the multistage centrifugal pump is operated.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a multistage centrifugal pump convenient to adjust discharge capacity, includes centrifugal pump main part and pipeline interface, the upside of centrifugal pump main part is fixed with the pipeline interface, and the transmission shaft is installed to the one end of centrifugal pump main part, the downside of centrifugal pump main part is fixed with the fixed plate, and the butt joint groove has been seted up to the upside of fixed plate, the top of butt joint groove is provided with the junction housing, the junction housing is close to one side of butt joint groove and is fixed with first connecting plate, and first connecting plate and butt joint groove dock, and the outside of butt joint groove is fixed with first connecting pad, the lug in the junction housing outside runs through and has first bolt, and the lug that the first bolt runs through and stretches out the junction housing dock with the fixed plate dock;
the upper side of connecting cover has been seted up first logical groove, the pipeline interface runs through and stretches out first logical groove, the spout has been seted up to one side that the connecting cover is close to the pipeline interface, and spout and slider slip butt joint, the upside of slider is connected with the second connecting plate, and the second connecting plate is close to one side bonding that the pipeline interface has the second connection pad, the both sides of second connecting plate are run through and are had the second bolt, and the second bolt runs through and stretch out second connecting plate and butt joint with the fixed plate, the one side bonding that the connecting cover is close to first logical groove has the third connection pad.
Preferably, a second through groove is formed in one side, close to the transmission shaft, of the connecting cover, a fourth connecting pad is bonded to the inner side of the second through groove, and a first butt joint plate is butt-jointed below the transmission shaft in the second through groove.
Preferably, a fifth connecting pad is adhered to the outer peripheral side of the first butt joint plate, which is close to the second through groove, a third connecting plate is fixed to the outer side of the first butt joint plate, and third bolts penetrate through the two ends of the third connecting plate.
Preferably, the third bolt penetrates through and extends out of the third connecting plate to be in butt joint with the connecting cover.
Preferably, the exhaust groove is formed in one side of the pipeline connector by the connecting cover, an exhaust fan is mounted in the exhaust groove, a fourth bolt penetrates through an external connecting plate of the exhaust fan, and the fourth bolt penetrates through an external connecting plate extending out of the exhaust fan to be in butt joint with the connecting cover.
Preferably, the exhaust fan is connected with a sixth connecting pad near the outer periphery of the exhaust groove, a ventilation groove is formed in one side, far away from the exhaust groove, of the connecting cover, and the ventilation groove is in butt joint with the filter plate.
Preferably, a seventh connecting pad is adhered to one side of the filter plate, which is close to the ventilation groove, a fifth bolt penetrates through the inner part of the protruding block of the seventh connecting pad, and the protruding block of the seventh connecting pad, which penetrates through the fifth bolt, is butted with the connecting cover.
Preferably, the third through grooves are formed in the two sides of the connecting cover, the third through grooves are in butt joint with the second butt joint plate, and the eighth connecting pad is adhered to the outer peripheral side, close to the second butt joint plate, of the second butt joint plate.
Preferably, a ventilation cover is fixed on one side of the second butt joint plate, which is close to the centrifugal pump main body, and dehumidification particles are arranged on the inner side of the ventilation cover, and sixth bolts penetrate through the two ends of the second butt joint plate.
Preferably, the sixth bolt penetrates through the second butt plate to be in butt joint with the connecting cover.
Compared with the prior art, the invention has the beneficial effects that: this multistage centrifugal pump convenient to adjust discharge capacity through limiting the connecting cover and installing in the centrifugal pump main part, makes the operational environment of multistage centrifugal pump keep clean, dry, ventilate, avoids the pump to receive the erosion of dust, steam, acid-base etc. corrosive substance, through the filter of installation, still keeps good ventilation and dispel the heat after making multistage centrifugal pump installation connecting cover, and is difficult for receiving the influence of outside dust flying wadding, and dehumidification granule can absorb the moisture in the outside air, when making multistage centrifugal pump installation connecting cover start the air discharge fan and ventilate and dispel the heat, is difficult for receiving the influence of moisture in the outside air.
1. When the multistage centrifugal pump is operated, in order to reduce the influence of external factors on the multistage centrifugal pump, the pipeline interface extends out of the first through groove, the transmission shaft is in butt joint with the second through groove, the first connecting plate is in butt joint with the butt joint groove, the first bolt is rotated, so that the connecting cover is limited on the outer side of the centrifugal pump main body, the second connecting plate is pulled, the two second connecting plates respectively drive the second connecting pads to extrude the pipeline interface, when the second connecting plates are pulled to extrude the second connecting pads with the pipeline interface, the third connecting pads respectively extrude with the second connecting plates and the second connecting pads, finally the first butt joint plate is in butt joint with the second through groove below the transmission shaft, the fifth connecting pads are extruded with the second through groove, the connecting cover is limited on the outer side of the centrifugal pump main body and is respectively installed with the second connecting plates and the first butt joint plate, the operating environment of the multistage centrifugal pump is kept clean, dry and ventilated, and corrosion of dust, water vapor, acid and alkali and other corrosive substances are avoided;
2. when the centrifugal pump main body and the connecting cover are installed to finish operation, the exhaust fan and the exhaust groove are installed, the filter plate and the ventilation groove are installed, the exhaust fan is started, hot air in the connecting cover is discharged by the exhaust fan, airflow in the connecting cover is strengthened, the airflow direction in the connecting cover is shown by an arrow in the figure, and when outside air enters the connecting cover through the installed filter plate, dust flying flock carried by the outside air can be filtered by the filter plate, good ventilation and heat dissipation are still kept after the connecting cover is installed by the multistage centrifugal pump, and the influence of the dust flying flock of the outside is avoided;
3. this multistage centrifugal pump convenient to adjust discharge capacity, when centrifugal pump main part and connection cover installation are finished, start the air discharge fan and ventilate the heat dissipation, pack dehumidification granule in the inboard of ventilative cover, restrict the inboard at the connection cover with ventilative cover again, make dehumidification granule can absorb the moisture in the outside air, when making multistage centrifugal pump installation connection cover start the air discharge fan and ventilate the heat dissipation, be difficult for receiving the influence of moisture in the outside air.
Drawings
FIG. 1 is a schematic elevational cross-sectional view of the present invention;
FIG. 2 is a schematic diagram of a left-hand cross-sectional structure of the present invention;
FIG. 3 is a schematic view of a right-side cross-sectional structure of the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic cross-sectional elevation view of a first connection plate and a first connection pad according to the present invention;
FIG. 6 is a schematic view of a left-hand cross-sectional structure of the chute and slider of the present invention;
FIG. 7 is a schematic top cross-sectional view of a second channel and a first splice plate of the present invention;
FIG. 8 is a schematic left-hand cross-sectional view of a third through slot and an eighth connection pad of the present invention;
FIG. 9 is a schematic top view of a first through slot and a third connecting pad according to the present invention;
fig. 10 is a schematic top view of the fixing plate and the docking slot of the present invention.
In the figure: 1. a centrifugal pump body; 11. a pipe interface; 12. a transmission shaft; 2. a fixing plate; 21. a butt joint groove; 3. a connection cover; 31. a first connection plate; 32. a first connection pad; 33. a first bolt; 34. a first through groove; 4. a chute; 41. a slide block; 42. a second connecting plate; 43. a second connection pad; 44. a second bolt; 45. a third connection pad; 5. a second through slot; 51. a fourth connection pad; 6. a first butt plate; 61. a fifth connection pad; 62. a third connecting plate; 63. a third bolt; 7. an exhaust groove; 71. an exhaust fan; 72. a fourth bolt; 73. a sixth connection pad; 8. a ventilation groove; 81. a filter plate; 82. a seventh connection pad; 83. a fifth bolt; 9. a third through slot; 10. a second butt plate; 101. an eighth connection pad; 102. a ventilation cover; 103. dehumidifying particles; 104. and a sixth bolt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, 2, 3, 4, 5, 6, 7, 9 and 10, the present invention provides a technical solution: a multistage centrifugal pump convenient for adjusting displacement comprises a centrifugal pump main body 1 and a pipeline interface 11, wherein the upper side of the centrifugal pump main body 1 is fixedly provided with the pipeline interface 11, one end of the centrifugal pump main body 1 is provided with a transmission shaft 12, the lower side of the centrifugal pump main body 1 is fixedly provided with a fixed plate 2, the upper side of the fixed plate 2 is provided with a butt joint groove 21, a connecting cover 3 is arranged above the butt joint groove 21, one side of the connecting cover 3 close to the butt joint groove 21 is fixedly provided with a first connecting plate 31, the first connecting plate 31 is butted with the butt joint groove 21, the outer side of the butt joint groove 21 is fixedly provided with a first connecting pad 32, a first bolt 33 penetrates through a bump extending out of the connecting cover 3 to be butted with the fixed plate 2, the upper side of the connecting cover 3 is provided with a first through groove 34, the pipeline interface 11 penetrates out of the first through groove 34, one side of the connecting cover 3 close to the pipeline interface 11 is provided with a chute 4, the sliding chute 4 is in sliding butt joint with the sliding block 41, a second connecting plate 42 is connected to the upper side of the sliding block 41, a second connecting pad 43 is adhered to one side of the second connecting plate 42 close to the pipeline connector 11, second bolts 44 penetrate through two sides of the second connecting plate 42, the second bolts 44 penetrate through and extend out of the second connecting plate 42 to be in butt joint with the fixed plate 2, a third connecting pad 45 is adhered to one side of the connecting cover 3 close to the first through groove 34, a second through groove 5 is arranged on one side of the connecting cover 3 close to the transmission shaft 12, a fourth connecting pad 51 is adhered to the inner side of the second through groove 5, a first butt joint plate 6 is abutted to the lower side of the transmission shaft 12 of the second through groove 5, a fifth connecting pad 61 is adhered to the outer peripheral side of the first butt joint plate 6 close to the second through groove 5, a third connecting plate 62 is fixed on the outer side of the first butt joint plate 6, and two ends of the third connecting plate 62 penetrate through third bolts 63, the third bolt 63 penetrates through and extends out of the third connecting plate 62 to be in butt joint with the connecting cover 3, the first connecting pad 32, the second connecting pad 43, the third connecting pad 45, the fourth connecting pad 51 and the fifth connecting pad 61 are made of rubber respectively, the first connecting pad 32 is extruded with the butt joint groove 21, the two second connecting pads 43 are mutually extruded, the second connecting pad 43 is extruded with the pipeline interface 11, the third connecting pad 45 is respectively extruded with the second connecting plate 42 and the second connecting pad 43, the fourth connecting pad 51 is respectively extruded with the transmission shaft 12 and the fifth connecting pad 61, the fifth connecting pad 61 is respectively extruded with the second through groove 5 and the transmission shaft 12, the first bolt 33 is in threaded connection with the fixed plate 2, the second bolt 44 and the third bolt 63 are respectively in threaded connection with the connecting cover 3, and the section size of the sliding groove 4 is matched with the section size of the sliding block 41.
In specific implementation, according to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 9, the method for simply changing the flow of the multistage centrifugal pump is to adjust the opening degree of the outlet valve of the water pump, the rotating speed of the multistage centrifugal pump is generally kept unchanged, the opening degree of the outlet valve of the water pump is to change the position of the pipeline characteristic curve to change the working point of the pump, when the valve is closed, the local resistance of the pipeline is increased, the working point of the water pump is moved leftwards, the corresponding flow is reduced, and when the valve is fully closed, the resistance is infinite, the flow is zero, and the method is simple and convenient to operate, has continuous flow, can be randomly adjusted between a certain large flow and zero, does not need additional investment, and is applicable to a wide range of occasions;
when the multistage centrifugal pump is operated, in order to reduce the influence of external factors, the pipeline connector 11 is extended out of the first through groove 34, the transmission shaft 12 is abutted with the second through groove 5, the first connecting plate 31 is abutted with the abutting groove 21, the first connecting pad 32 is made of rubber material, the first connecting pad 32 is extruded with the abutting groove 21, the first connecting plate 31 and the abutting groove 21 form a sealing state, the first bolt 33 penetrates through the protruding block extending out of the connecting cover 3 to be abutted with the fixed plate 2, the first bolt 33 is rotated, the first bolt 33 is in threaded connection with the fixed plate 2 through the first bolt 33, the first bolt 33 and the fixed plate 2 are limited together, so that the connecting cover 3 is limited at the outer side of the centrifugal pump main body 1, and the connecting cover 3 is limited at the outer side of the centrifugal pump main body 1, the fourth connecting pad 51 and the transmission shaft 12 are mutually extruded, the fourth connecting pad 51 and the transmission shaft 12 form a sealing state by adopting a rubber material through the fourth connecting pad 51, the second connecting plates 42 are pulled, the two second connecting plates 42 respectively drive the second connecting pads 43 to extrude the pipeline interface 11, when the second connecting pads 43 extrude the pipeline interface 11, the two second connecting pads 43 mutually extrude, the second connecting pads 43 form a sealing state with the pipeline interface 11, and when the second connecting plates 42 are pulled to extrude the second connecting pads 43 with the pipeline interface 11, the third connecting pads 45 respectively extrude with the second connecting plates 42 and the second connecting pads 43, and the third connecting pads 45 adopt a rubber material, so that the third connecting pads 45 respectively form a sealing state with the second connecting plates 42 and the second connecting pads 43;
and then the second bolt 44 penetrates through the second connecting plate 42 to be in butt joint with the connecting cover 3, the second bolt 44 is rotated, the second connecting plate 42 is in threaded connection with the connecting cover 3 through the second bolt 44, the second connecting plate 42 is limited at the outer side of the connecting cover 3, finally the first butt joint plate 6 is in butt joint with the second through groove 5 below the transmission shaft 12, the fifth connecting pad 61 is extruded with the second through groove 5, the fifth connecting pad 61 and the second through groove 5 are made of rubber materials through the fifth connecting pad 61, the fourth connecting pad 51 and the fifth connecting pad 61 are mutually extruded to form a sealing state, the third bolt 63 penetrates through the third connecting plate 62 to be in butt joint with the connecting cover 3, the third bolt 63 is in threaded connection with the connecting cover 3, the first butt joint plate 6 and the connecting cover 3 are limited together, the sealing state is formed through the first connecting plate 31 and the butt joint groove 21, the fourth connecting pad 51 and the transmission shaft 12 form a sealing state, the second connecting pad 43 and the pipeline interface 11 form a sealing state, the third connecting pad 45 and the second connecting pad 42 are respectively in sealing state with the second connecting plate 42, and the centrifugal pump is prevented from being corroded by water and dust, and the dry dust are prevented from being corroded by the centrifugal pump, and the dry dust is arranged at the outer side of the connecting plate is protected from being in the main body.
The exhaust groove 7 is formed in one side of the pipeline connector 11 of the connecting cover 3, the exhaust fan 71 is mounted in the exhaust groove 7, the outer connecting plate of the exhaust fan 71 penetrates through the fourth bolt 72, the fourth bolt 72 penetrates through the outer connecting plate extending out of the exhaust fan 71 and is in butt joint with the connecting cover 3, the sixth connecting pad 73 is connected to the outer peripheral side, close to the exhaust groove 7, of the exhaust fan 71, the ventilation groove 8 is formed in one side, far away from the exhaust groove 7, of the connecting cover 3, the ventilation groove 8 is in butt joint with the filter plate 81, the seventh connecting pad 82 is bonded to one side, close to the ventilation groove 8, of the filter plate 81, the fifth bolt 83 penetrates through the fifth bolt 83, the protruding block extending out of the seventh connecting pad 82 is in butt joint with the connecting cover 3, the fourth bolt 72 and the fifth bolt 83 are in threaded connection with the connecting cover 3, the sixth connecting pad 73 and the seventh connecting pad 82 are made of rubber materials, the sixth connecting pad 73 and the exhaust groove 7 are extruded, and the seventh connecting pad 82 and the ventilation groove 8 are extruded.
In particular, according to fig. 1, 2, 3 and 4, when the attachment of the centrifugal pump body 1 to the attachment cover 3 is completed, the exhaust fan 71 is abutted against the exhaust groove 7, the sixth connection pad 73 is pressed against the exhaust groove 7, the sixth connection pad 73 is made of rubber, the sixth connection pad 73 and the exhaust groove 7 are sealed, the fourth bolt 72 is abutted against the attachment cover 3 through the external plate of the exhaust fan 71, the fourth bolt 72 is rotated, the fourth bolt 72 is screwed against the attachment cover 3, the exhaust fan 71 and the attachment cover 3 are restricted together, the filter plate 81 is abutted against the air-permeable groove 8, the seventh connection pad 82 is pressed against the air-permeable groove 8, the seventh connection pad 82 is made of rubber, the seventh connection pad 82 and the ventilation groove 8 form a sealing state, then the fifth bolt 83 penetrates through the protruding block of the filter plate 81 to be in butt joint with the connection cover 3, the fifth bolt 83 is rotated to limit the filter plate 81 and the connection cover 3 together, the exhaust fan 71 is started, the exhaust fan 71 discharges hot air in the connection cover 3, the air flow in the connection cover 3 is enhanced, the air flow direction in the connection cover 3 is shown by an arrow in fig. 1, when the outside air enters the connection cover 3 through the installed filter plate 81, dust flying flocks carried by the outside air can be filtered by the filter plate 81, and the multistage centrifugal pump still keeps good ventilation and heat dissipation after the connection cover 3 is installed and is not easily influenced by the dust flying flocks of the outside.
The third tee bend groove 9 has been seted up to the both sides of connecting cover 3, and the butt joint of third tee bend groove 9 and second butt joint board 10, the second butt joint board 10 is close to the periphery side bonding of second butt joint board 10 and has eighth connection pad 101, one side that second butt joint board 10 is close to centrifugal pump main part 1 is fixed with ventilative cover 102, and ventilative cover 102's inboard is provided with dehumidification granule 103, the both ends of second butt joint board 10 are run through and are had sixth bolt 104, sixth bolt 104 runs through and stretches out second butt joint board 10 and butt joint of connecting cover 3, eighth connection pad 101 adopts the rubber material, and eighth connection pad 101 extrudes mutually with third tee joint groove 9, dehumidification granule 103 adopts the active carbon granule, sixth bolt 104 is threaded connection with connecting cover 3.
In particular, according to fig. 2 and 8, when the installation of the centrifugal pump body 1 and the connection cover 3 is completed and the ventilation fan 71 is started to perform ventilation and heat dissipation, the dehumidifying particles 103 are filled in the inner side of the ventilation cover 102, the second butt plate 10 is butt-jointed with the third through-channel 9, the eighth connection pad 101 is extruded with the third through-channel 9, the eighth connection pad 101 and the third through-channel 9 are made of rubber materials through the eighth connection pad 101, the sixth bolt 104 penetrates through the second butt plate 10 to butt-joint with the connection cover 3, the sixth bolt 104 is rotated, and the sixth bolt 104 is in threaded connection with the connection cover 3, so that the ventilation cover 102 is limited in the inner side of the connection cover 3, the dehumidifying particles 103 can absorb moisture in the outside air through the dehumidifying particles 103, and the ventilation fan 71 is not easily influenced by moisture in the outside air when the multistage centrifugal pump is installed and the connection cover 3 is started to perform ventilation and heat dissipation.
In summary, the principle of the multistage centrifugal pump is that the pressure of the liquid is continuously increased through the relay action of the impellers of a plurality of pump stages, when the liquid passes through each centrifugal pump impeller, the pressure of the liquid is increased, so that the liquid obtains higher speed and higher pressure in the next impeller, each impeller can generate high pressure, the combination of the multistage impellers can generate higher pressure, the multistage centrifugal pump changes the flow simply by adjusting the opening degree of an outlet valve of the water pump, when the valve is closed, the local resistance of a pipeline is increased, the working condition of the water pump is moved leftwards, the corresponding flow is reduced, the resistance is infinite when the valve is fully closed, the flow is zero, the connecting cover 3 and the centrifugal pump main body 1 are installed when the multistage centrifugal pump operates, so that the operating environment of the multistage centrifugal pump is kept clean, dry and ventilated, the pump is prevented from being corroded by corrosive substances such as dust, water vapor, acid and alkali, and the like, the exhaust fan 71 is started, and when the outside air enters the connecting cover 3 through the installed filter plate 81, the filter plate 81 can filter dust flying flocks carried by the outside air, so that the multistage centrifugal pump still keeps good ventilation and heat dissipation after being installed on the connecting cover 3 and is not easily influenced by the outside dust flying flocks, dehumidification particles 103 are filled in the inner side of the ventilation cover 102, the ventilation cover 102 is limited in the inner side of the connecting cover 3, the dehumidification particles 103 can absorb moisture in the outside air, and when the multistage centrifugal pump is installed on the connecting cover 3 to start the exhaust fan 71 for ventilation and heat dissipation, the influence of the moisture in the outside air is not easily influenced, and details not described in the description belong to the prior art known to the expert in the field.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. Multistage centrifugal pump convenient to adjust discharge capacity, including centrifugal pump main part (1) and pipeline interface (11), its characterized in that:
the centrifugal pump comprises a centrifugal pump body (1), wherein a pipeline interface (11) is fixed on the upper side of the centrifugal pump body (1), a transmission shaft (12) is installed at one end of the centrifugal pump body (1), a fixing plate (2) is fixed on the lower side of the centrifugal pump body (1), a butt joint groove (21) is formed in the upper side of the fixing plate (2), a connecting cover (3) is arranged above the butt joint groove (21), a first connecting plate (31) is fixed on one side, close to the butt joint groove (21), of the connecting cover (3), the first connecting plate (31) is in butt joint with the butt joint groove (21), a first connecting pad (32) is fixed on the outer side of the butt joint groove (21), a first bolt (33) penetrates through a protruding block on the outer side of the connecting cover (3), and the protruding block, penetrating through the first bolt (33), extending out of the connecting cover (3), is in butt joint with the fixing plate (2).
The upper side of junction housing (3) has seted up first logical groove (34), pipeline interface (11) runs through and stretches out first logical groove (34), spout (4) have been seted up to one side that junction housing (3) is close to pipeline interface (11), and spout (4) and slider (41) slip butt joint, the upside of slider (41) is connected with second connecting plate (42), and one side bonding that second connecting plate (42) is close to pipeline interface (11) has second connection pad (43), second bolt (44) have been run through to the both sides of second connecting plate (42), and second bolt (44) run through and stretch out second connecting plate (42) and butt joint with fixed plate (2), one side bonding that junction housing (3) is close to first logical groove (34) has third connection pad (45).
2. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 1, wherein: the connecting cover (3) is close to one side of the transmission shaft (12) and is provided with a second through groove (5), a fourth connecting pad (51) is adhered to the inner side of the second through groove (5), and the second through groove (5) is abutted with a first abutting plate (6) below the transmission shaft (12).
3. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 2, wherein: a fifth connecting pad (61) is adhered to the outer peripheral side, close to the second through groove (5), of the first butt joint plate (6), a third connecting plate (62) is fixed to the outer side of the first butt joint plate (6), and third bolts (63) penetrate through two ends of the third connecting plate (62).
4. A multi-stage centrifugal pump for facilitating displacement adjustment as claimed in claim 3, wherein: the third bolt (63) penetrates through and extends out of the third connecting plate (62) to be in butt joint with the connecting cover (3).
5. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 4, wherein: the connecting cover (3) is provided with an exhaust groove (7) at one side of the pipeline interface (11), an exhaust fan (71) is arranged in the exhaust groove (7), a fourth bolt (72) penetrates through an external plate of the exhaust fan (71), and the fourth bolt (72) penetrates through the external plate extending out of the exhaust fan (71) to be in butt joint with the connecting cover (3).
6. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 5, wherein: the exhaust fan (71) is connected with a sixth connecting pad (73) near the outer periphery side of the exhaust groove (7), one side, far away from the exhaust groove (7), of the connecting cover (3) is provided with a ventilation groove (8), and the ventilation groove (8) is in butt joint with the filter plate (81).
7. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 6, wherein: a seventh connecting pad (82) is adhered to one side, close to the ventilation groove (8), of the filter plate (81), a fifth bolt (83) penetrates through the inner portion of the protruding block of the seventh connecting pad (82), and the protruding block, extending out of the seventh connecting pad (82), of the fifth bolt (83) penetrates through to be in butt joint with the connecting cover (3).
8. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 7, wherein: the two sides of the connecting cover (3) are provided with third through grooves (9), the third through grooves (9) are in butt joint with second butt joint plates (10), and eighth connecting pads (101) are adhered to the outer peripheral sides of the second butt joint plates (10) close to the second butt joint plates (10).
9. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 8, wherein: one side of the second butt joint plate (10) close to the centrifugal pump main body (1) is fixed with a ventilation cover (102), dehumidifying particles (103) are arranged on the inner side of the ventilation cover (102), and sixth bolts (104) penetrate through two ends of the second butt joint plate (10).
10. A multi-stage centrifugal pump for facilitating displacement adjustment as recited in claim 9, wherein: the sixth bolt (104) penetrates through the second butt joint plate (10) to be in butt joint with the connecting cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310532872.1A CN116624397A (en) | 2023-05-11 | 2023-05-11 | Multistage centrifugal pump convenient to adjust discharge capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310532872.1A CN116624397A (en) | 2023-05-11 | 2023-05-11 | Multistage centrifugal pump convenient to adjust discharge capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116624397A true CN116624397A (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310532872.1A Pending CN116624397A (en) | 2023-05-11 | 2023-05-11 | Multistage centrifugal pump convenient to adjust discharge capacity |
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| CN (1) | CN116624397A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003184778A (en) * | 2001-12-14 | 2003-07-03 | Kawamoto Pump Mfg Co Ltd | Vertical type multi-stage centrifugal pump |
| CN210087621U (en) * | 2019-03-22 | 2020-02-18 | 江苏雷勃电机股份有限公司 | Stainless steel explosion-proof pump that security performance is high |
| CN112502985A (en) * | 2020-11-28 | 2021-03-16 | 杭州兔研工业设计有限公司 | Combined low-cavitation multistage centrifugal pump |
| CN212838370U (en) * | 2020-07-30 | 2021-03-30 | 山东蓝升泵业有限公司 | Corrosion-resistant stainless steel multistage centrifugal pump |
| CN214499427U (en) * | 2021-01-15 | 2021-10-26 | 嘉兴金瑞光伏科技有限公司 | Horizontal centrifugal pump with anti-freezing function |
| CN217976623U (en) * | 2022-05-17 | 2022-12-06 | 沈阳纪维应用技术有限公司 | Energy-concerving and environment-protective performance is high and centrifugal pump that silence noise reduction effect is good |
-
2023
- 2023-05-11 CN CN202310532872.1A patent/CN116624397A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003184778A (en) * | 2001-12-14 | 2003-07-03 | Kawamoto Pump Mfg Co Ltd | Vertical type multi-stage centrifugal pump |
| CN210087621U (en) * | 2019-03-22 | 2020-02-18 | 江苏雷勃电机股份有限公司 | Stainless steel explosion-proof pump that security performance is high |
| CN212838370U (en) * | 2020-07-30 | 2021-03-30 | 山东蓝升泵业有限公司 | Corrosion-resistant stainless steel multistage centrifugal pump |
| CN112502985A (en) * | 2020-11-28 | 2021-03-16 | 杭州兔研工业设计有限公司 | Combined low-cavitation multistage centrifugal pump |
| CN214499427U (en) * | 2021-01-15 | 2021-10-26 | 嘉兴金瑞光伏科技有限公司 | Horizontal centrifugal pump with anti-freezing function |
| CN217976623U (en) * | 2022-05-17 | 2022-12-06 | 沈阳纪维应用技术有限公司 | Energy-concerving and environment-protective performance is high and centrifugal pump that silence noise reduction effect is good |
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