CN103016357A - High temperature resisting fluoroplastic magnetic centrifugal pump - Google Patents
High temperature resisting fluoroplastic magnetic centrifugal pump Download PDFInfo
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- CN103016357A CN103016357A CN2012105294252A CN201210529425A CN103016357A CN 103016357 A CN103016357 A CN 103016357A CN 2012105294252 A CN2012105294252 A CN 2012105294252A CN 201210529425 A CN201210529425 A CN 201210529425A CN 103016357 A CN103016357 A CN 103016357A
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- impeller
- sleeve
- centrifugal pump
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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 the corrosive liquids that does not contain iron filings impurity, be particularly useful for the conveying of inflammable, explosive, volatile, poisonous and precious liquid, specifically a kind of thermostable fluorine plastic magnetic centrifugal pump.
Background technique
Magnetic drive pump is to use modern magnetomechanics principle, utilizes magnetic driver to realize a kind of new pump of the non contact transmission of moment of torsion.At present there were a lot of problems in general fluoroplastic centrifugal pump (mechanical seal) less than 3 months working life, for example: the structural design defective, have that the vibration gap is large, sealing surface seals unstable yielding problem, and the normal operation temperature is below 70 ℃; Processing technology is complicated, galloping, and working life is short, and the magnetic transmission part adopts ferrite, and magnetic property is low, and moment of torsion is little, and is bulky.
In addition, drive assembly is 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 we were referred to as the impeller assembly after assembling was finished.Separation sleeve 4 ' the back side and stainless steel sleeve 5 ' assembling, main shaft 10 ' assembles and plays seal action with separation sleeve 4 ', is fixed on the stainless steel sleeve 5 '.A bearing 3 ' is installed in the bottom of main shaft 10 '.Also assemble a stationary ring 6 ' on the pump housing 1 ', support 9 ' is connected with motor, and outer magnetic 11 ' is put into and the electric machine main shaft assembling from support 9 ' one end, with bearing 3 ' and support 9 ' assembling, the impeller assembly is installed on the main shaft 10 ' again.Shown in the structural design deficiency as follows:
1. generally all be 1mm owing to the gap of impeller and separation sleeve is very little.Plastic expansion when pump uses 70 ℃ to 80 ℃ of medium temperatures, the impeller of rotation will scratch separation sleeve.
2. all be plastics seam location when the pump housing and separation sleeve all are the fluoroplastic installation, meeting during bolt tightening is so that plastics compressive strain.This moment, the gap of rotating ring and two rubbing surfaces of stationary ring also just was affected, and can't guarantee that the needed axial motion of vane rotary is in scope of design.Even often can change original size by natural shrinking in the pump housing, separation sleeve and other working of plasticss after the processing completion.
3. main shaft is to be fixed on the supported hole of stainless steel sleeve and the pump housing.And stainless steel sleeve itself will lean on the separation sleeve working of plastics to locate exactly, so the machining error after the assembling of two parts all has been reacted on main shaft and the impeller with alignment error.Add that main shaft is that F4 filling carbon fiber material is made, must not be less than 0.3mm to 0.6mm with the radial clearance of porcelain tube.So can not guarantee during vane rotary and concentricity requirement every total, support, outer magnetic.
4. the in the running utilization of stainless steel sleeve of pump forms the magnetic eddy current so that the magnetic induction line in magnetic field is cut.Cause the high temperature deformation of separation sleeve to destroy.The leakage field of outer magnetic will produce the magnetic eddy current with support simultaneously, cause whole rising of temperature of pump.
5. impeller and outer magnetic all are revolving parts, and static balancing test is done in national requirements, so impeller can be along with the wearing and tearing shake of main shaft be increasing when High Rotation Speed, noise is increasing.
The fluoroplastic magnetic centrifugal pump using scope of the type is little, can not be high temperature resistant, working life that can not guarantee pump.
Summary of the invention
For the problems referred to above, the present invention discloses a kind of thermostable fluorine plastic magnetic centrifugal pump, has solved fluoroplastic and has at high temperature expanded and be out of shape a difficult problem, and the autonomous Design internal structure solves the magnetic leakage problem, has improved 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 is packed in the separation sleeve, described separation sleeve is installed in the outer magnetic assembly, also be provided with rigidized cover between described separation sleeve and the outer magnetic assembly, described outer magnetic assembly connects the motor cage plate, described motor cage plate connects motor, it is outside that described support is installed in outer magnetic assembly, described support is connected with the 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 and are fixed with described support between rigidized cover and outer magnetic assembly.
As improvement, described drive assembly comprises impeller, bearing, inner magnet, central axis seat, rotor body, bearing is installed at the described impeller back side, described impeller connects inner magnet, described inner magnet connects rotor body, assembling sleeve on the described central axis seat, and the central axis seat that axle sleeve is housed is installed on the impeller, described axle sleeve and bearing compress mutually, and two ends and the support of described central axis seat fix.
As improvement, described bearing front end is installed bearing washer.
As preferably, between described impeller and the inner magnet seal ring is installed.
As preferably, described central axis seat arranges dovetail groove or auxiliary hole.According to the shape and structure characteristics of central axis seat, now positive and negative two plane machinings of iron core of central axis seat the multiple tracks dovetail groove, being difficult for processing dovetail groove place, do not separate with iron core when guaranteeing that by the processing technology hole PFA is subject to high temperature.
As preferably, between the described pump housing and the central axis seat sealing gasket is set.
The present invention has adopted above-mentioned measure to improve, and 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 ℃ of high temperature, high temperature resistant, be able to bear strong corrosion, hardness is fabulous, wear-resisting property is fine.
2, by clamping concentric die axle sleeve is compressed on the central axis seat, has guaranteed the concentricity of two ends axle sleeves, and the axle sleeve installation dimension on the central axis seat fixes, required gap is just controlled by axle sleeve in the axial motion gap.
3, two end faces of bearing and axle sleeve match and have played the effect of friction pair, rotating ring and stationary ring have been cancelled, so the position of impeller in pump case depended on the mounting point of central axis seat fully, the radial clearance that the while vane rotary is required and axial motion are controlled when the assembling impeller, no longer are subjected to other dresses to have influence on the gap of impeller.
4, impeller, Inner magnet, the total Chengdu of outer magnetic reach the requirement of dynamic balancing quality precision G6.3 level through the dynamic balancing machine test, have guaranteed stability and Security that all parts is installed.
Thereby the present invention has the advantages such as economic and practical, high temperature resistant, long lifetime.
Description of drawings
Fig. 1 is the structural representation of original magnetic centrifugal pump;
Fig. 2 is the structural representation of the embodiment of the invention 1.
1 ' is the pump housing among Fig. 1, 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.
1 is the pump housing among Fig. 2, the 2nd, and impeller, the 3rd, bearing, the 4th, axle sleeve, the 5th, sealing gasket, the 6th, central axis seat, the 7th, separation sleeve, the 8th, rigidized cover, the 9th, rigidized cover pressing plate, the 10th, support, the 11st, outer magnetic assembly, the 12nd, bearing washer, the 13rd, rotor body, the 14th, seal ring, the 15th, motor cage plate, the 16th, motor, the 17th, inner magnet.
Embodiment
The present invention is further illustrated in conjunction with the embodiments for the below's contrast accompanying drawing:
With reference to shown in Figure 2, a kind of thermostable fluorine plastic magnetic centrifugal pump among the 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 applying impeller 2, the pump housing 1 is installed on the central axis seat 6 of drive assembly with sealing gasket 5.Bearing 3 is installed at impeller 2 back sides, its middle (center) bearing 3 front ends are installed bearing washer 12, the central axis seat 6 that axle sleeve 4 is housed is installed on the impeller 2, bearing 3 and 4 two end faces of axle sleeve compress the effect of having played friction pair mutually simultaneously, the two ends of this central axis seat 6 and support 10 fix, impeller 2 connects inner magnet 17, and inner magnet 17 connects rotor body 13, and seal ring 14 wherein is installed between impeller 2 and the inner magnet 17.This drive assembly is packed in the separation sleeve 7, and separation sleeve 7, rigidized cover 8, rigidized cover pressing plate 9 assemble successively, then be installed in the outer magnetic assembly 11, and separation sleeve 7, rigidized cover 8, rigidized cover pressing plate 9 is all fixing with support 10.Outer magnetic assembly 11 is installed in the 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 also is connected with support 10.
Wherein positive and negative two plane machinings of the iron core of central axis seat 6 the multiple tracks dovetail groove, being difficult for processing dovetail groove place, processed auxiliary hole.
What more than enumerate only is 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 or associate from content disclosed by the invention all should belong to protection scope of the present invention.
Claims (6)
1. thermostable fluorine plastic magnetic centrifugal pump, comprise the pump housing, described pump housing connection for transmission assembly, described drive assembly is packed in the separation sleeve, described separation sleeve is installed in the outer magnetic assembly, also be provided with rigidized cover between described separation sleeve and the outer magnetic assembly, described outer magnetic assembly connects the motor cage plate, and described motor cage plate connects motor, and it is outside that described support is installed in outer magnetic assembly, described support is connected with the motor cage plate, described separation sleeve, rigidized cover and described support are fixed, and it is characterized in that, described rigidized cover reinforcement by connection cover pressing plate, described rigidized cover pressing plate and is fixed with described support between rigidized cover and outer magnetic assembly.
2. thermostable fluorine plastic magnetic centrifugal pump according to claim 1, it is characterized in that, described drive assembly comprises impeller, bearing, inner magnet, central axis seat, rotor body, bearing is installed at the described impeller back side, and described impeller connects inner magnet, and described inner magnet connects rotor body, assembling sleeve on the described central axis seat, the central axis seat that axle sleeve is housed is installed on the impeller, and described axle sleeve and bearing compress mutually, and two ends and the support of described central axis seat fix.
3. thermostable fluorine plastic magnetic centrifugal pump according to claim 2 is characterized in that, described bearing front end is installed bearing washer.
4. thermostable fluorine plastic magnetic centrifugal pump according to claim 2 is characterized in that, between described impeller and the inner magnet seal ring is installed.
5. thermostable fluorine plastic magnetic centrifugal pump according to claim 2 is characterized in that, described central axis seat arranges dovetail groove or auxiliary hole.
6. thermostable fluorine plastic magnetic centrifugal pump according to claim 2 is characterized in that, between the described pump housing and the central axis seat sealing gasket is set.
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 |
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| Publication Number | Publication Date |
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| CN103016357A true CN103016357A (en) | 2013-04-03 |
| CN103016357B CN103016357B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210529425.2A Active CN103016357B (en) | 2012-12-11 | 2012-12-11 | High temperature resisting fluoroplastic magnetic centrifugal pump |
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| CN (1) | CN103016357B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352892A (en) * | 2018-09-29 | 2019-02-19 | 鸿浩泵业有限公司 | A kind of compacting tool set and drawing method of the inclined difluoro impeller with rotating ring |
| CN110242583A (en) * | 2018-03-09 | 2019-09-17 | 日本电产三协株式会社 | Pump |
| 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI738327B (en) * | 2020-05-11 | 2021-09-01 | 日益電機股份有限公司 | Canned magnetic pump with reinforced leak-proof cover with back cover |
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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242583A (en) * | 2018-03-09 | 2019-09-17 | 日本电产三协株式会社 | Pump |
| CN109352892A (en) * | 2018-09-29 | 2019-02-19 | 鸿浩泵业有限公司 | A kind of compacting tool set and drawing method of the inclined difluoro impeller with rotating ring |
| 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 |
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| Publication number | Publication date |
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| CN103016357B (en) | 2015-06-17 |
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Effective date of registration: 20170515 Address after: Donggang eight road 324004 in Zhejiang Province, Quzhou City Kecheng District No. 15 Patentee after: Quzhou Vader 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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