CN112610506A - Magnetic force driving pump suitable for high-temperature and high-pressure medium conveying - Google Patents
Magnetic force driving pump suitable for high-temperature and high-pressure medium conveying Download PDFInfo
- Publication number
- CN112610506A CN112610506A CN202011487094.1A CN202011487094A CN112610506A CN 112610506 A CN112610506 A CN 112610506A CN 202011487094 A CN202011487094 A CN 202011487094A CN 112610506 A CN112610506 A CN 112610506A
- Authority
- CN
- China
- Prior art keywords
- pressure medium
- liquid accumulation
- high temperature
- high pressure
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002955 isolation Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 44
- 238000009825 accumulation Methods 0.000 claims description 33
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 206010030113 Oedema Diseases 0.000 description 9
- 239000002609 medium Substances 0.000 description 9
- 241000521257 Hydrops Species 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Images
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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/064—Details of the magnetic circuit
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials 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
- F04D29/08—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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a magnetic drive pump suitable for high-temperature and high-pressure medium conveying, which comprises a front working cavity and a rear sealing cavity, wherein the front working cavity comprises a pump cover and a partition plate, an impeller is arranged in a cavity formed by the pump cover and the partition plate, the impeller is arranged on a rotating shaft, the rotating shaft is rotatably arranged in a mounting hole in the partition plate through a bearing, the rear sealing cavity comprises a pump body and an isolation sleeve, the end parts of the pump body and the isolation sleeve are mutually connected, the pump body and the isolation sleeve are connected with the pump cover through bolts, an inner magnetic rotor is arranged in the isolation sleeve, the inner magnetic rotor is arranged at the tail end. The front working cavity and the rear sealing cavity of the magnetic pump are independently assembled, and the magnetic pump is convenient to disassemble and assemble.
Description
Technical Field
The invention relates to the field of magnetic pump equipment, in particular to a magnetic drive pump suitable for conveying high-temperature and high-pressure media.
Background
The magnetic driving pump (magnetic driving pump for short) is a new product applying the working principle of permanent magnet coupling to centrifugal pump, and has the characteristics of reasonable design, advanced process, full sealing, no leakage, corrosion resistance, etc. The device is mainly used for conveying toxic and corrosive liquids. The magnetic driver of the magnetic driving pump consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolation sleeve. When the motor drives the outer magnetic rotor to rotate through the coupler, the magnetic field can penetrate through the air gap and the nonmagnetic substance isolation sleeve to drive the inner magnetic rotor connected with the impeller to synchronously rotate, and the non-contact synchronous transmission of power is realized.
The outer magnetic rotor and the inner magnetic rotor rotate to generate eddy heat, so that the temperature of a pump body is overhigh, internal circulation cooling is formed by introducing media, volume loss is caused, and the working efficiency is reduced. When the magnetic force driving pump works in a high-temperature and high-pressure environment, the mode of introducing a medium for cooling cannot achieve the effect, and meanwhile, the solution loss also causes low efficiency, so that the structure of the magnetic force driving pump needs to be optimized to a certain extent.
Disclosure of Invention
The invention aims to solve the technical problem of providing a magnetic drive pump suitable for conveying high-temperature and high-pressure media.
The magnetic drive pump comprises a front working cavity and a rear sealing cavity, wherein the front working cavity comprises a pump cover and a partition plate, an impeller is arranged in a cavity formed by the pump cover and the partition plate, the impeller is arranged on a rotating shaft, the rotating shaft is rotatably arranged in a mounting hole in the partition plate through a bearing, the rear sealing cavity comprises a pump body and an isolation sleeve, the end parts of the pump body and the isolation sleeve are mutually connected, the pump body and the isolation sleeve are connected with the pump cover through bolts, an inner magnetic rotor is arranged in the isolation sleeve, the inner magnetic rotor is arranged at the tail end of the rotating shaft, and an outer magnetic rotor is arranged on the outer side of the isolation sleeve.
In a preferred scheme, the isolation sleeve is made of a non-metal material.
In a preferred scheme, the isolation sleeve is made of ceramic or thermosetting plastic.
In a preferable scheme, an annular bulge is arranged on one side of the partition plate opposite to the mounting hole, and a sealing sleeve is arranged on the annular bulge.
In a preferred scheme, one side of the partition plate is provided with an installation bulge, and the installation bulge is sleeved with a liquid accumulation ring.
In the preferred scheme, the outer wall of the mounting protrusion is provided with a clamping groove, and the inner wall of the liquid accumulation ring is provided with a protrusion corresponding to the clamping groove.
In a preferable scheme, the side wall of the liquid accumulation ring is provided with a liquid accumulation cup.
In a preferred scheme, the side wall of the liquid accumulating ring is provided with a liquid accumulating groove, and the liquid accumulating cup is communicated with the liquid accumulating groove.
In a preferred scheme, the liquid accumulation ring comprises two half cylinders, connecting plates are arranged at the end parts of the two half cylinders, and the connecting plates of the two half cylinders are connected through bolts.
The invention provides a magnetic force drive pump suitable for conveying high-temperature and high-pressure media, which has the following beneficial effects:
1. the cavity assembles with sealed back cavity alone respectively before the work, carries out the unit mount at last, and reasonable assembly mode is convenient for later stage dismantlement and the clearance of hydrops cup and the change of seal cover, raises the efficiency.
2. The device works in a high-temperature and high-pressure environment, and a medium with high temperature and high pressure is conveyed. Most faults of the magnetic pump are caused by high temperature and high pressure, and the isolating sleeve is thin and is easy to deform and damage under the high temperature and high pressure. The high temperature medium has little effect of cooling as a cooling medium. Because the medium is kept apart in the pump body front half, the spacer sleeve can adopt the nonmetal material of not producing the hot vortex, prevents the hot production of vortex, does not produce the hot greatly reduced magnetic drive pump's of vortex temperature, and cooling circuit can get rid of, eliminates the volume loss, improves work efficiency.
3. The reliability of the seal is higher. After the partition board is installed, the partition board is matched with a sealing sleeve to perform secondary sealing, secondary protection is performed, and the sealing reliability is enhanced.
4. The liquid accumulation ring and the liquid accumulation cup are used as a collecting device of exudation media, and the inner part of the isolation sleeve is kept clean. The degree of speed that the hydrops cup medium was collected is monitored, judges the tired degree of sealing washer, accomplishes in time to change, prevents the trouble and takes place.
5. The hydrops ring is designed into a half-cylinder combination form, so that the replacement of a sealing sleeve is convenient.
Drawings
The invention is further illustrated with reference to the accompanying drawings and examples:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a front working chamber;
FIG. 3 is a schematic structural view of a rear seal chamber;
FIG. 4 is an enlarged view taken at A in FIG. 2;
FIG. 5 is a schematic view of the liquid ring;
in the figure: the pump cover comprises a pump cover 1, a partition plate 2, an impeller 3, a rotating shaft 4, a bearing 5, a pump body 6, an isolation sleeve 7, an inner magnetic rotor 8, an outer magnetic rotor 9, a sealing sleeve 10, a liquid accumulation ring 11, a liquid accumulation cup 12, a mounting hole 201, an annular protrusion 202, a mounting protrusion 203, a clamping groove 204, a protrusion 1101, a liquid accumulation groove 1102, a half cylinder 1103 and a connecting plate 1104.
Detailed Description
As shown in fig. 1-3, a magnetic drive pump suitable for high temperature and high pressure medium is carried, including preceding work cavity and back seal chamber, preceding work cavity includes pump cover 1 and baffle 2, be equipped with impeller 3 in the cavity that pump cover 1 and baffle 2 are constituteed, impeller 3 installs on pivot 4, pivot 4 passes through bearing 5 and rotates in installing hole 201 of installing on baffle 2, back seal chamber includes tip interconnect's pump body 6 and spacer sleeve 7, pump body 6 and spacer sleeve 7 pass through the bolt and are connected with pump cover 1, be equipped with interior magnetic rotor 8 in the spacer sleeve 7, interior magnetic rotor 8 sets up at 4 tail ends of pivot, the spacer sleeve 7 outside is equipped with outer magnetic rotor 9.
During the specific use, the pump cover 1 and the baffle plate 2 are connected through bolts to realize the assembly of the front working cavity, the pump body 6 and the isolation sleeve 7 are connected through bolts to realize the assembly of the rear sealing cavity, and the assembled front working cavity and the assembled rear sealing cavity are connected through bolts to realize the assembly of the whole magnetic drive pump.
The independent assembly of the front working cavity and the rear sealing cavity is realized, and the disassembly and the assembly are convenient.
Preferably, the isolation sleeve 7 is made of a non-metal material.
Specifically, the isolation sleeve 7 is made of ceramic or thermosetting plastic, and specifically, silicon nitride, phenolic resin, melamine-formaldehyde resin, unsaturated polyester resin and the like can be selected.
By operating in a high temperature and high pressure environment, a high temperature and high pressure medium is transported. Most faults of the magnetic pump are caused by high temperature and high pressure, and the isolation sleeve 7 is thin and is easy to deform and damage under the high temperature and high pressure. Through setting up the spacer sleeve 7 for non-metallic material, prevent the hot production of vortex, do not produce the hot greatly reduced magnetic drive pump's of vortex temperature, cooling circuit can get rid of, eliminates the volume loss, improves work efficiency.
Preferably, an annular protrusion 202 is disposed on one side of the partition plate 2 opposite to the mounting hole 201, and the sealing sleeve 10 is disposed on the annular protrusion 202.
Through setting up seal cover 10, can effectively keep apart during the transport medium gets into back seal chamber, prevent that high temperature medium from getting into back seal chamber and causing the temperature rise of back seal chamber.
One side of the clapboard 2 is provided with an installation bulge 203, and the installation bulge 203 is sleeved with the liquid accumulation ring 11. The liquid ring 11 is arranged around the sealing sleeve 10.
By arranging the liquid accumulation ring 11, the liquid accumulation ring can be used as a second protection to collect the leaked liquid after the sealing sleeve 10 fails.
Preferably, as shown in fig. 5, the liquid accumulation ring 11 comprises two half cylinders 1103, connecting plates 1104 are arranged at the ends of the two half cylinders 1103, and the connecting plates 1104 of the two half cylinders 1103 are connected through bolts.
The dropsy ring 11 is detachably connected through the assembly of the two half cylinders 1103, so that the liquid in the dropsy ring 11 can be conveniently cleaned.
Further, as shown in fig. 4, a clamping groove 204 is formed on the outer wall of the mounting protrusion 203, and a protrusion 1101 corresponding to the clamping groove 204 is formed on the inner wall of the drip ring 11.
The fitting of the projection 1101 and the engagement groove 204 improves the stability of the connection between the drip ring 11 and the mounting projection 203.
Preferably, the side wall of the liquid accumulation ring 11 is provided with a liquid accumulation cup 12. The lateral wall of the liquid accumulation ring 11 is provided with a mounting hole communicated with the liquid accumulation cup 12, and the liquid accumulation cup 12 is communicated with the liquid accumulation ring 11, so that liquid leaked in the liquid accumulation ring 11 can be collected conveniently.
Further, hydrops groove 1102 is arranged on the side wall of hydrops ring 11, and hydrops cup 12 is communicated with hydrops groove 1102.
The liquid in the liquid accumulation ring 11 can be guided by the liquid accumulation groove 1102 to flow into the liquid accumulation cup 12 for collection.
Claims (9)
1. The utility model provides a magnetic force actuation pump suitable for high temperature high pressure medium is carried which characterized in that: including preceding work cavity and back seal chamber, preceding work cavity includes pump cover (1) and baffle (2), be equipped with impeller (3) in the cavity that pump cover (1) and baffle (2) are constituteed, install on pivot (4) impeller (3), pivot (4) are rotated through bearing (5) and are installed in mounting hole (201) on baffle (2), back seal chamber includes tip interconnect's pump body (6) and spacer sleeve (7), pump body (6) and spacer sleeve (7) are connected with pump cover (1) through the bolt, be equipped with interior magnetic rotor (8) in spacer sleeve (7), interior magnetic rotor (8) set up at pivot (4) tail end, spacer sleeve (7) outside is equipped with outer magnetic rotor (9).
2. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 1, wherein: the isolation sleeve (7) is made of a non-metal material.
3. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 2, wherein: the isolation sleeve (7) is made of ceramic or thermosetting plastic.
4. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 1, wherein: an annular bulge (202) is arranged on one side of the partition plate (2) opposite to the mounting hole (201), and a sealing sleeve (10) is arranged on the annular bulge (202).
5. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 1, wherein: one side of the clapboard (2) is provided with an installation bulge (203), and the installation bulge (203) is sleeved with a liquid accumulation ring (11).
6. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 5, wherein: the outer wall of the mounting protrusion (203) is provided with a clamping groove (204), and the inner wall of the liquid accumulation ring (11) is provided with a protrusion (1101) corresponding to the clamping groove (204).
7. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 5, wherein: the side wall of the liquid accumulation ring (11) is provided with a liquid accumulation cup (12).
8. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 5, wherein: the side wall of the liquid accumulation ring (11) is provided with a liquid accumulation groove (1102), and the liquid accumulation cup (12) is communicated with the liquid accumulation groove (1102).
9. A magnetic drive pump suitable for high temperature and high pressure medium delivery according to claim 5, wherein: the liquid accumulation ring (11) comprises two half cylinders (1103), connecting plates (1104) are arranged at the ends of the two half cylinders (1103), and the connecting plates (1104) of the two half cylinders (1103) are connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487094.1A CN112610506A (en) | 2020-12-16 | 2020-12-16 | Magnetic force driving pump suitable for high-temperature and high-pressure medium conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487094.1A CN112610506A (en) | 2020-12-16 | 2020-12-16 | Magnetic force driving pump suitable for high-temperature and high-pressure medium conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112610506A true CN112610506A (en) | 2021-04-06 |
Family
ID=75239803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011487094.1A Pending CN112610506A (en) | 2020-12-16 | 2020-12-16 | Magnetic force driving pump suitable for high-temperature and high-pressure medium conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112610506A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723490U (en) * | 2010-07-22 | 2011-01-26 | 黄维伦 | Energy-saving environment-protective centrifugal blower |
| CN206000773U (en) * | 2016-08-31 | 2017-03-08 | 四川北方硝化棉股份有限公司 | Centrifugal pump seal structure |
| CN210509625U (en) * | 2019-09-11 | 2020-05-12 | 浙江永久泵业有限公司 | Stainless steel magnetic pump |
| CN111794973A (en) * | 2020-06-30 | 2020-10-20 | 杭州三洋泵业有限公司 | Magnetic centrifugal pump for conveying granular medium |
-
2020
- 2020-12-16 CN CN202011487094.1A patent/CN112610506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723490U (en) * | 2010-07-22 | 2011-01-26 | 黄维伦 | Energy-saving environment-protective centrifugal blower |
| CN206000773U (en) * | 2016-08-31 | 2017-03-08 | 四川北方硝化棉股份有限公司 | Centrifugal pump seal structure |
| CN210509625U (en) * | 2019-09-11 | 2020-05-12 | 浙江永久泵业有限公司 | Stainless steel magnetic pump |
| CN111794973A (en) * | 2020-06-30 | 2020-10-20 | 杭州三洋泵业有限公司 | Magnetic centrifugal pump for conveying granular medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210406 |