CN103016357B - High temperature resisting fluoroplastic magnetic centrifugal pump - Google Patents
High temperature resisting fluoroplastic magnetic centrifugal pump Download PDFInfo
- Publication number
- CN103016357B CN103016357B CN201210529425.2A CN201210529425A CN103016357B CN 103016357 B CN103016357 B CN 103016357B CN 201210529425 A CN201210529425 A CN 201210529425A CN 103016357 B CN103016357 B CN 103016357B
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- China
- Prior art keywords
- sleeve
- impeller
- central axis
- bearing
- centrifugal pump
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- 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.)
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- 229920002313 fluoropolymer Polymers 0.000 title abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 22
- 229920003023 plastic Polymers 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 14
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 10
- 239000011737 fluorine Substances 0.000 claims description 10
- 229910052731 fluorine Inorganic materials 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000001272 pressureless sintering Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention is applied to conveying corrosive liquids without scrap iron impurities in the field of petroleum, chemical industry, electroplate and the like, and particularly relates to a high temperature resisting fluoroplastic magnetic centrifugal pump. The pump comprises a pump body and a pump connecting transmission assembly, wherein the transmission assembly is installed in an isolation sleeve. The isolation sleeve, a reinforcing sleeve and a reinforcing sleeve platen are sequentially assembled and installed in an outer magnetic assembly and fixed with a bracket. The outer magnetic assembly is connected with a motor sleeve plate which is connected with a motor. The bracket is installed outside the outer magnetic assembly and connected with motor sleeve plate. The transmission assembly comprises an impeller, a bearing, an inner magnetic body, a central shaft bed and a rotor body. The bearing is installed on the back of the impeller, the impeller is connected with the inner magnetic body, and the inner magnetic body is connected with the rotor body. The central shaft bed provided with a shaft sleeve is installed on the impeller, the shaft sleeve and the bearing compress each other, and both ends of the central shaft bed are fixed with the bracket. The high temperature resisting fluoroplastic magnetic centrifugal pump provided by the invention solves the difficult problem of expansion and deformation of fluoroplastic under high temperature, and the inner structure is self-designed, so that the magnetic leakage problem is solved, and the product performance is improved.
Description
Technical field
The present invention is widely used in carrying in the production procedure of the enterprises such as oil, chemical industry, pharmacy, printing and dyeing, plating, food, environmental protection not containing the corrosive liquids of iron filings impurity, be particularly useful for conveying that is inflammable, explosive, volatile, poisonous and precious liquid, specifically a kind of thermostable fluorine plastic magnetic centrifugal pump.
Background technique
Magnetic drive pump is the modern magnetomechanics principle of application, utilizes magnetic driver to realize a kind of new pump of the non contact transmission of moment of torsion.Less than 3 months, there is a lot of problem in fluoroplastic centrifugal pump (mechanical seal) working life general at present, such as: structural design defect, have that vibration gap is large, the unstable yielding problem of sealing surface sealing, and general serviceability temperature is below 70 DEG C; Processing technology is complicated, galloping, and working life is short, and Magnetic drive parts adopt ferrite, and magnetic property is low, and moment of torsion is little, bulky.
In addition, drive assembly as the pith of magnetic centrifugal pump, drive assembly in the past as shown in Figure 1: impeller 2 ' is integrated with interior magnet steel, and the endoporus of impeller 2 ' matches with porcelain tube 8 ', the entry end of impeller 2 ' is equipped with a rotating ring 7 ', and after having assembled, we are referred to as impeller assembly.Separation sleeve 4 ' the back side and stainless steel sleeve 5 ' assemble, and main shaft 10 ' and separation sleeve 4 ' assemble and play seal action, are fixed on stainless steel sleeve 5 '.A bearing 3 ' is installed in the bottom of main shaft 10 '.The pump housing 1 ' also assembles a stationary ring 6 ', support 9 ' is connected with motor, and outer magnetic 11 ' is put into from support 9 ' one end and assembled with electric machine main shaft, bearing 3 ' and support 9 ' is assembled, then is installed on main shaft 10 ' by impeller assembly.It is as follows that shown structural design is not enough:
1. be generally all 1mm because the gap of impeller and separation sleeve is very little.The plastic expansion when pump is used in medium temperature 70 DEG C to 80 DEG C, the impeller of rotation will scratch separation sleeve.
2. be all plastics seam location when the pump housing and separation sleeve are all fluoroplastic installations, plastic compression during bolt tightening, can be made to be out of shape.Now the gap of rotating ring and stationary ring two rubbing surfaces is also just affected, and cannot guarantee that axial motion required for vane rotary is in scope of design.Often original size can be changed by natural shrinking in the pump housing, separation sleeve and other working of plasticss even after processing completion.
3. main shaft is fixed on the supported hole of stainless steel sleeve and the pump housing.And stainless steel sleeve inherently will lean on separation sleeve working of plastics to locate, two parts assembling after thus machining error be all reacted on main shaft and impeller with alignment error.Add that main shaft is that F4 filling carbon fiber material is made, must not 0.3mm to 0.6mm be less than with the radial clearance of porcelain tube.So can not ensure during vane rotary and the concentricity requirement every total, support, outer magnetic.
4. the utilization of pump stainless steel sleeve in the running makes the magnetic induction line in magnetic field be cut, and forms magnetic eddy current.The high temperature deformation of separation sleeve is caused to destroy.The leakage field of outer magnetic will produce magnetic eddy current with support simultaneously, cause the temperature entirety of pump to raise.
5. impeller and outer magnetic are all revolving parts, and static balancing test is done in national requirements, so impeller can be increasing along with the wearing and tearing shake of main shaft when High Rotation Speed, noise is increasing.
The fluoroplastic magnetic centrifugal pump using scope of the type is little, can not high temperature resistant, working life that can not ensure pump.
Summary of the invention
For the problems referred to above, the present invention discloses a kind of thermostable fluorine plastic magnetic centrifugal pump, solves fluoroplastic and at high temperature expands and be out of shape a difficult problem, autonomous Design internal structure, solves magnetic leakage problem, improves product performance.
The present invention is achieved by the following technical solutions: a kind of thermostable fluorine plastic magnetic centrifugal pump, comprise the pump housing, described pump housing connection for transmission assembly, described drive assembly loads in separation sleeve, described separation sleeve is arranged in outer magnetic assembly, also rigidized cover is provided with between described separation sleeve and outer magnetic assembly, described outer magnetic assembly connects motor cage plate, described motor cage plate connects motor, described support installing outside magnetic assembly is outside, described support is connected with motor cage plate, described separation sleeve, rigidized cover and described support are fixed, described rigidized cover reinforcement by connection cover pressing plate, described rigidized cover pressing plate is between rigidized cover and outer magnetic assembly, and fix with described support.
As improvement, described drive assembly comprises impeller, bearing, inner magnet, central axis seat, rotor body, described wheel backface installs bearing, described impeller connects inner magnet, described inner magnet connects rotor body, assembling sleeve on described central axis seat, and the central axis seat that axle sleeve is housed is arranged on impeller, described axle sleeve and bearing compress mutually, and two ends and the support of described central axis seat fix.
As improvement, bearing washer is installed in described bearing front end.
As preferably, between described impeller and inner magnet, seal ring is installed.
As preferably, described central axis seat arranges dovetail groove or auxiliary hole.According to the shape and structure feature of central axis seat, positive and negative two plane machinings of iron core of present central axis seat multiple tracks dovetail groove, not easily processing dovetail groove place, be not separated with iron core when ensureing that PFA is subject to high temperature by processing technology hole.
As preferably, between the described pump housing and central axis seat, sealing gasket is set.
Present invention employs above-mentioned measure to improve, beneficial effect is remarkable:
1, drive assembly Intermediate shaft sleeve material of the present invention is SSiC pressureless sintering silicon carbide sinter molding under 2100 DEG C of high temperature, high temperature resistant, be able to bear strong corrosion, hardness is fabulous, wear-resisting property is fine.
2, being compressed on central axis seat by clamping concentric die by axle sleeve, ensure that the concentricity of two ends axle sleeve, and the axle sleeve installation dimension on central axis seat is fixing, axial motion gap just controls required gap by axle sleeve.
3, bearing and axle sleeve two end faces match and serve the effect of friction pair, eliminate rotating ring and stationary ring, so the position of impeller in pump case depends on the mounting point of central axis seat completely, radial clearance simultaneously needed for vane rotary and axial motion are controlled when assembling impeller, no longer have influence on the gap of impeller by other dress.
4, impeller, Inner magnet, the total Chengdu of outer magnetic are tested through dynamic balancing machine, reach the requirement of dynamic balancing quality precision G6.3 level, ensure that the stability that all parts is installed and Security.
Thus the present invention has the advantages such as economic and practical, high temperature resistant, long lifetime.
Accompanying drawing explanation
Fig. 1 is the structural representation of original magnetic centrifugal pump;
Fig. 2 is the structural representation of the embodiment of the present invention 1.
In Fig. 1,1 ' is the pump housing, and 2 ' is impeller, and 3 ' is bearing, and 4 ' is separation sleeve, and 5 ' is stainless steel sleeve, and 6 ' is stationary ring, and 7 ' is rotating ring, and 8 ' is porcelain tube, and 9 ' is support, and 10 ' is main shaft, and 11 ' is outer magnetic.
In Fig. 2,1 is the pump housing, and 2 is impellers, and 3 is bearings, 4 is axle sleeves, and 5 is sealing gaskets, and 6 is central axis seats, 7 is separation sleeves, and 8 is rigidized covers, and 9 is rigidized cover pressing plates, 10 is supports, and 11 is outer magnetic assemblies, and 12 is bearing washers, 13 is rotor bodys, and 14 is seal rings, and 15 is motor cage plates, 16 is motors, and 17 is inner magnets.
Embodiment
The present invention is further illustrated in conjunction with the embodiments to contrast accompanying drawing below:
With reference to shown in Fig. 2, a kind of thermostable fluorine plastic magnetic centrifugal pump in embodiment 1, comprise the pump housing 1, sealing gasket 5, drive assembly, separation sleeve 7, rigidized cover 8, rigidized cover pressing plate 9, outer magnetic assembly 11, support 10, motor cage plate 15, motor 16, wherein drive assembly comprises impeller 2, bearing 3, axle sleeve 4, central axis seat 6, bearing washer 12, seal ring 14, inner magnet 17, rotor body 13, the pump housing 1 is fitted impeller 2, and the pump housing 1 and sealing gasket 5 are arranged on the central axis seat 6 of drive assembly.Bearing 3 is installed at impeller 2 back side, bearing washer 12 is installed in its middle (center) bearing 3 front end, the central axis seat 6 that axle sleeve 4 is housed is arranged on impeller 2, bearing 3 and axle sleeve 4 two end faces compress the effect serving friction pair mutually simultaneously, two ends and the support 10 of this central axis seat 6 fix, impeller 2 connects inner magnet 17, and inner magnet 17 connects rotor body 13, wherein installs seal ring 14 between impeller 2 and inner magnet 17.This drive assembly loads in separation sleeve 7, and separation sleeve 7, rigidized cover 8, rigidized cover pressing plate 9 assemble successively, are then installed in outer magnetic assembly 11, and separation sleeve 7, rigidized cover 8, rigidized cover pressing plate 9 are all fixed with support 10.Outer magnetic assembly 11 is arranged in support 10, and outer magnetic assembly 11 connects motor cage plate 15, and motor cage plate 15 connects motor 16, and motor cage plate 15 is also connected with support 10.
Wherein the iron core of central axis seat 6 positive and negative two plane machinings multiple tracks dovetail groove, not easily processing dovetail groove place, machined auxiliary hole.
That more than enumerates is only specific embodiments of the invention, obviously, the invention is not restricted to above embodiment.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should belong to protection scope of the present invention.
Claims (5)
1. a thermostable fluorine plastic magnetic centrifugal pump, comprise the pump housing, described pump housing connection for transmission assembly, described drive assembly loads in separation sleeve, described separation sleeve is arranged in outer magnetic assembly, also rigidized cover is provided with between described separation sleeve and outer magnetic assembly, described outer magnetic assembly connects motor cage plate, described motor cage plate connects motor, support installing outside magnetic assembly is outside, described support is connected with motor cage plate, described separation sleeve, rigidized cover and described support are fixed, it is characterized in that, described rigidized cover reinforcement by connection cover pressing plate, described rigidized cover pressing plate is between rigidized cover and outer magnetic assembly, and fix with described support, described drive assembly comprises impeller, bearing, inner magnet, central axis seat, rotor body, described wheel backface installs bearing, described impeller connects inner magnet, described inner magnet connects rotor body, assembling sleeve on described central axis seat, described axle sleeve is compressed on central axis seat by clamping concentric die, the central axis seat that axle sleeve is housed is arranged on impeller, and two ends and support fix, described bearing and axle sleeve two end faces compress mutually, described axle sleeve material is SSiC pressureless sintering silicon carbide.
2. thermostable fluorine plastic magnetic centrifugal pump according to claim 1, is characterized in that, bearing washer is installed in described bearing front end.
3. thermostable fluorine plastic magnetic centrifugal pump according to claim 1, is characterized in that, install seal ring between described impeller and inner magnet.
4. thermostable fluorine plastic magnetic centrifugal pump according to claim 1, it is characterized in that, described central axis seat arranges dovetail groove or auxiliary hole, positive and negative two plane machinings of iron core of described central axis seat some roads dovetail grooves.
5. thermostable fluorine plastic magnetic centrifugal pump according to claim 1, is characterized in that, arrange sealing gasket between the described pump housing and central axis seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210529425.2A CN103016357B (en) | 2012-12-11 | 2012-12-11 | High temperature resisting fluoroplastic magnetic centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210529425.2A CN103016357B (en) | 2012-12-11 | 2012-12-11 | High temperature resisting fluoroplastic magnetic centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016357A CN103016357A (en) | 2013-04-03 |
| CN103016357B true CN103016357B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210529425.2A Active CN103016357B (en) | 2012-12-11 | 2012-12-11 | High temperature resisting fluoroplastic magnetic centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016357B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3910198A1 (en) * | 2020-05-11 | 2021-11-17 | Zi Yi Electrical Engineering Co., Ltd. | Canned motor device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019157695A (en) * | 2018-03-09 | 2019-09-19 | 日本電産サンキョー株式会社 | pump |
| CN109352892B (en) * | 2018-09-29 | 2023-09-08 | 鸿浩泵业有限公司 | Pressing die and pressing method for vinylidene fluoride impeller with movable ring |
| CN111255700A (en) * | 2020-03-18 | 2020-06-09 | 日益电机股份有限公司 | Canned magnetic pump with rear cover shield for preventing leakage |
| CN111594450A (en) * | 2020-06-16 | 2020-08-28 | 衢州维德新材料有限公司 | High-flow fluoroplastic magnetic pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2437877Y (en) * | 2000-09-01 | 2001-07-04 | 李国坤 | Rareearth permanent-magnet magnetic suspension high power magnetic pump |
| CN2534396Y (en) * | 2001-12-19 | 2003-02-05 | 郭兰升 | Magnetic pump |
| CN2703900Y (en) * | 2003-09-11 | 2005-06-08 | 刘铭 | Magnetic driving pump |
| CN1648459A (en) * | 2004-01-19 | 2005-08-03 | 蔡国华 | Plastic magnetic force pump |
| CN203067300U (en) * | 2012-12-11 | 2013-07-17 | 衢州众德泵业有限公司 | High-temperature-resistant fluoroplastic magnetic force centrifugal pump |
-
2012
- 2012-12-11 CN CN201210529425.2A patent/CN103016357B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2437877Y (en) * | 2000-09-01 | 2001-07-04 | 李国坤 | Rareearth permanent-magnet magnetic suspension high power magnetic pump |
| CN2534396Y (en) * | 2001-12-19 | 2003-02-05 | 郭兰升 | Magnetic pump |
| CN2703900Y (en) * | 2003-09-11 | 2005-06-08 | 刘铭 | Magnetic driving pump |
| CN1648459A (en) * | 2004-01-19 | 2005-08-03 | 蔡国华 | Plastic magnetic force pump |
| CN203067300U (en) * | 2012-12-11 | 2013-07-17 | 衢州众德泵业有限公司 | High-temperature-resistant fluoroplastic magnetic force centrifugal pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3910198A1 (en) * | 2020-05-11 | 2021-11-17 | Zi Yi Electrical Engineering Co., Ltd. | Canned motor device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103016357A (en) | 2013-04-03 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170515 Address after: Donggang eight road 324004 in Zhejiang Province, Quzhou City Kecheng District No. 15 Patentee after: QUZHOU WEIDE NEW MATERIAL CO.,LTD. Address before: 324004 Zhejiang province Quzhou City Kecheng District Garden Street North Road No. 62 Patentee before: QUZHOU XHONGDE PUMP INDUSTRY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: High temperature resistant fluoroplastic magnetic centrifugal pump Granted publication date: 20150617 Pledgee: China Co. truction Bank Corp of Quzhou Province Branch Pledgor: QUZHOU WEIDE NEW MATERIAL CO.,LTD. Registration number: Y2024980039573 |