CN202250896U - High-pressure reverse circulation magnetic pump - Google Patents
High-pressure reverse circulation magnetic pump Download PDFInfo
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- CN202250896U CN202250896U CN2011202876888U CN201120287688U CN202250896U CN 202250896 U CN202250896 U CN 202250896U CN 2011202876888 U CN2011202876888 U CN 2011202876888U CN 201120287688 U CN201120287688 U CN 201120287688U CN 202250896 U CN202250896 U CN 202250896U
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Abstract
The utility model relates to a high-pressure reverse circulation magnetic pump, which mainly solves the problems that the conventional magnetic pump has over-high net positive suction head and poor anti-cavitation performance and cannot meet the special requirements of delivering easily vaporizable mediums such as liquefied petroleum gas and the like in the petrochemical industry. A part of high-pressure liquid which is produced by high-speed rotation of an impeller in a cavity of a pump body flows by a sliding bearing and a thrust ring through a through hole of a pump cover by passing through a semi through hole of a pump shaft, and a part of the high-pressure liquid flows to the bottom of an isolating sleeve; and the liquid is speeded up again through an auxiliary impeller on an inner magnetic rotor and then is returned to a high-pressure region of the pump body through another through hole of the pump cover. Compared with positive circulation from high pressure to low pressure of the conventional magnetic pump, the high-pressure reverse circulation magnetic pump has the advantages of circulating the medium in a high-pressure state all the time, making vaporization difficult, effectively improving the anti-cavitation performance of the pump, improving the reliability of delivering the liquefied petroleum and easily vaporizable medium and meeting requirements of use on special occasions of delivery of all mediums of low saturated steam pressure and easily vaporizable medium in the fields of petrochemical industry and the like. The high-pressure reverse circulation magnetic pump has the advantages of no leakage and high anti-cavitation performance.
Description
Technical field
The utility model relates to a kind of magnetic drive pump, is meant the contrary circulation magnetic drive pump of a kind of high pressure especially.
Background technique
Magnetic drive pump is a kind of pump housing that utilizes magnetic force to drive, and is widely used in being used for transporting of medium in the industrial fields such as oil, chemical industry.Existing magnetic force pump structure, generally by pump head, magnetic driving equipment and other component totally three parts form.Wherein the pump head part mainly is made up of parts such as impeller, the pump housing, bearing, axle sleeve, pump cover, pump shafts: the magnetic driving equipment part mainly is made up of parts such as interior magnet rotor, outer magnet rotor, separation sleeves; Other component mainly comprise carriage, base, motor, intermediate bearing body and coupling etc.
Because the particularity that transports medium of petrochemical industry, therefore the performance requirement to magnetic drive pump improves constantly, and many particular application have proposed very high requirement to the cavitation performance of pump, needs magnetic drive pump under very low suction pressure, cavitation not to take place.For example, characteristics such as in the conveying of LPG, medium is corrosive mostly, inflammable, explosive, volatile and poisonous, high temperature resistant, the corrosion-resistant and sealability of many manufacturing process flow pumps has very strict requirement.Therefore, actual for producing, how to become a major issue at the cavitation performance that satisfies raising centrifugal pump under the leak free prerequisite.
In addition; Known, traditional magnetic drive pump inside is in order to the frictional heat of the sliding bearing on the pump shaft that supports impeller and interior magnet rotor and the eddy current heat of the metal separation sleeve between inside and outside magnet rotor, and the inner loop that common dependence is transferred medium is cooled off and taken away; Its flow is to introduce from high pressure----discharges to impeller eye low pressure place through pump shaft through hole----; Promptly from high pressure to low pressure, we are called direct circulation, obviously; This endless form is unfavorable for being prone to the conveying of vaporization medium (like the liquefaction petrochemical gas), can't satisfy petroleum chemical industry and transport the specific (special) requirements of vaporization medium easily such as LPG.
Summary of the invention
The purpose of the utility model is in order to overcome the shortcoming and defect that existing technology exists, and provide a kind of do not have leak and the contrary circulation magnetic drive pump of high pressure that anti-cavitation performance is good.
For realizing above-mentioned purpose; The technological scheme of the utility model is to comprise the pump housing, impeller, pump shaft, bearing support, pump cover, hitch, interior magnet rotor and outer magnet rotor; The pump housing be tightly connected pump cover and hitch; And the pump housing is provided with liquid entering hole and liquid outlet, and pump shaft rotates through bearing and axle sleeve and is installed in the pump cover, and the two ends of pump shaft connect impeller and interior magnet rotor respectively; Separation sleeve is arranged between interior magnet rotor and the outer magnet rotor and is fixed on pump cover; Described pump shaft is provided with half through hole that communicates with the separation sleeve inner chamber, and the afterbody of described interior magnet rotor is linkedly set with auxiliary impeller, and described pump cover is provided with high pressure feed pathway and high pressure back flow channel; Its mesohigh feed pathway two ends are connected with half through hole of pump housing liquid outlet and pump shaft respectively, and the high pressure back flow channel is connected with separation sleeve inner chamber and pump housing liquid outlet respectively.
Through above-mentioned setting, in the chamber of the pump housing since the high-pressure medium that the high speed rotating of impeller produces export from liquid outlet (zone of high pressure); Therefore, through the high pressure feed pathway highly pressurised liquid is incorporated into half through hole of pump shaft, MEDIA FLOW is through members such as bearings then; Flow into the separation sleeve bottom; Once more medium is carried out supercharging by auxiliary impeller, the medium after the supercharging is back to liquid outlet (zone of high pressure) output from the high pressure back flow channel.Therefore, the height that has constituted the inner flow of the pump housing is compressed into the contrary endless form that high pressure goes out, so can effectively avoid the easy vaporization medium vaporization phenomenon that produces because of low pressure, and traditional magnetic drive pump net positive suction head is higher, the defective of anti-cavitation ability thereby solved.
Further being provided with is that described hitch inboard is provided with friction ring.Further setting is that the auxiliary impeller of described interior magnet rotor end face is a straight radial blade.
The utility model has the advantages that: adopt high pressure feed pathway, half through hole, auxiliary impeller and high pressure back flow channel are set; Realize the contrary circulation of the inner flow of the pump housing; Compare with the direct circulation of magnetic drive pump from the high pressure to low pressure of routine; The utility model makes medium be in high pressure conditions all the time and circulates, and is not easy to produce vaporization, has effectively improved the anti-cavitation performance of pump; Improved the transportation of liquefied petroleum gas and the reliability of vaporization medium easily, all saturation vapour pressures that can satisfy fields such as petrochemical industry are lower, the conveying occasion of the medium of vaporizing is easily used.
Below in conjunction with Figure of description and embodiment the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model embodiment structural representation.
Embodiment
The embodiment of the utility model as shown in Figure 1; Comprise the pump housing 1, impeller 13, pump shaft 12, bearing support 4, pump cover 2, hitch 7, interior magnet rotor 6 and outer magnet rotor 4; The pump housing 1 be tightly connected pump cover 2 and hitch 7; And the pump housing is provided with liquid entering hole 14 and liquid outlet 15; Because the high-pressure medium that the high speed rotating of impeller 13 produces is installed in the pump cover 2 through sliding bearing 10 and axle sleeve 11 rotations from liquid outlet 15 (zone of high pressure) output pump shaft 12, be set with thrust ring 9 between described sliding bearing 10 and the interior magnet rotor 6 in the chamber of the pump housing.The two ends of pump shaft 12 connect impeller 13 and interior magnet rotor 4 respectively; Separation sleeve 3 is arranged between interior magnet rotor 6 and the outer magnet rotor 4 and is fixed on pump cover 2; It is characterized in that: described pump shaft 12 is provided with half through hole 121 that communicates with the separation sleeve inner chamber; The afterbody of magnet rotor 6 is linkedly set with auxiliary impeller 8 in described; Described pump cover 2 is provided with high pressure feed pathway 21 and high pressure back flow channel 22, and its mesohigh feed pathway 21 two ends are connected with half through hole 121 of pump housing liquid outlet 15 and pump shaft 12 respectively, and high pressure back flow channel 22 is connected with separation sleeve inner chamber and pump housing liquid outlet 15 respectively.The described high pressure feed pathway 21 of present embodiment is to be connected with the liquid outlet position of impeller 13 with high pressure back flow channel 22, realizes communicating with pump housing liquid outlet 15.The described hitch of present embodiment 7 inboards are provided with friction ring 5.The auxiliary impeller 8 of magnet rotor 6 end faces is a straight radial blade in described
The foregoing description is to the specific descriptions of the utility model; Only be used for the utility model is further specified; Can not be interpreted as the qualification to the utility model protection domain, the technician of related domain according to the content of above-mentioned model utility the utility model is made some nonessential improvement and adjustment all falls within the protection domain of the utility model.
Claims (3)
1. a high pressure is against the circulation magnetic drive pump; Comprise the pump housing (1), impeller (13), pump shaft (12), bearing support (4), pump cover (2), hitch (7), interior magnet rotor (6) and outer magnet rotor (4); The pump housing (1) be tightly connected pump cover (2) and hitch (7); And the pump housing is provided with liquid entering hole and liquid outlet, and pump shaft (12) rotates through bearing and axle sleeve (11) and is installed in the pump cover (2), and the two ends of pump shaft (12) connect impeller (13) and interior magnet rotor (4) respectively; Separation sleeve (3) is arranged between interior magnet rotor (6) and the outer magnet rotor (4) and is fixed on pump cover (2); It is characterized in that: described pump shaft (12) is provided with half through hole that communicates with the separation sleeve inner chamber, and the end face of described interior magnet rotor (6) is provided with auxiliary impeller (8), and described pump cover is provided with high pressure feed pathway and high pressure back flow channel; Its mesohigh feed pathway two ends are connected with half through hole of pump housing liquid outlet and pump shaft (12) respectively, and the high pressure back flow channel is connected with separation sleeve inner chamber and pump housing liquid outlet respectively.
2. the contrary circulation magnetic drive pump of a kind of high pressure according to claim 1, it is characterized in that: described hitch inboard is provided with friction ring.
3. the contrary circulation magnetic drive pump of a kind of high pressure according to claim 1 and 2, it is characterized in that: the auxiliary impeller of magnet rotor end face is a straight radial blade in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202876888U CN202250896U (en) | 2011-08-09 | 2011-08-09 | High-pressure reverse circulation magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202876888U CN202250896U (en) | 2011-08-09 | 2011-08-09 | High-pressure reverse circulation magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250896U true CN202250896U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202876888U Expired - Fee Related CN202250896U (en) | 2011-08-09 | 2011-08-09 | High-pressure reverse circulation magnetic pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN202250896U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765047A (en) * | 2012-08-07 | 2012-11-07 | 湖南大学 | Hydrostatic rotational supporting component for vertical shafting and grinding and polishing machine |
| CN105464964A (en) * | 2015-12-31 | 2016-04-06 | 太仓顺达磁力泵科技有限公司 | Conveying pump for solid-liquid mixed materials |
| CN105465006A (en) * | 2015-11-25 | 2016-04-06 | 湖南耐普泵业股份有限公司 | Low-temperature pump |
| CN106122036A (en) * | 2016-07-28 | 2016-11-16 | 江苏海天泵阀制造有限公司 | A kind of magnetically-actuated pipe type centrifugal pump |
| CN106286317A (en) * | 2015-05-28 | 2017-01-04 | 昆山江津长抗干磨磁力泵有限公司 | A kind of magnetic drive pump of full slip transmission |
| CN106996397A (en) * | 2017-05-22 | 2017-08-01 | 丹东通博泵业有限公司 | The interior cooling recirculation system structure of magnetic drive pump |
| CN107100878A (en) * | 2017-05-02 | 2017-08-29 | 浙江腾宇泵阀设备有限公司 | A kind of magnetic drive pump with magnetic suspension bearing |
| CN108252924A (en) * | 2016-12-28 | 2018-07-06 | 上海佰诺泵阀有限公司 | For conveying the magnetic drive pump of ultralow temperature easy vaporized medium |
| CN108361204A (en) * | 2018-04-25 | 2018-08-03 | 丹东晟辉石化设备有限公司 | It is anti-to evacuate anti-granular pattern magnetic drive pump |
| CN108894981A (en) * | 2018-08-23 | 2018-11-27 | 太仓顺达磁力泵科技有限公司 | A kind of self cooled magnetic drive pump |
| CN108916067A (en) * | 2018-06-28 | 2018-11-30 | 陕西科技大学 | A kind of magnetic drive formula acid-proof pump |
| CN108953164A (en) * | 2018-06-28 | 2018-12-07 | 陕西科技大学 | A kind of contactless delivery pump |
| CN109026733A (en) * | 2018-08-17 | 2018-12-18 | 江苏新腾宇流体设备制造有限公司 | A kind of vertical low cavitation high security magnetic drive pump |
| CN110529385A (en) * | 2018-05-24 | 2019-12-03 | 温州市邦明机械设备制造有限公司 | A kind of corrosion-resistant magnetic force driven centrifugal pump |
| CN111156174A (en) * | 2019-12-31 | 2020-05-15 | 六安市中盛泵阀制造有限公司 | Multifunctional magnetic pump |
-
2011
- 2011-08-09 CN CN2011202876888U patent/CN202250896U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765047A (en) * | 2012-08-07 | 2012-11-07 | 湖南大学 | Hydrostatic rotational supporting component for vertical shafting and grinding and polishing machine |
| CN102765047B (en) * | 2012-08-07 | 2014-10-29 | 湖南大学 | Hydrostatic rotational supporting component for vertical shafting and grinding and polishing machine |
| CN106286317A (en) * | 2015-05-28 | 2017-01-04 | 昆山江津长抗干磨磁力泵有限公司 | A kind of magnetic drive pump of full slip transmission |
| CN105465006A (en) * | 2015-11-25 | 2016-04-06 | 湖南耐普泵业股份有限公司 | Low-temperature pump |
| CN105464964A (en) * | 2015-12-31 | 2016-04-06 | 太仓顺达磁力泵科技有限公司 | Conveying pump for solid-liquid mixed materials |
| CN106122036A (en) * | 2016-07-28 | 2016-11-16 | 江苏海天泵阀制造有限公司 | A kind of magnetically-actuated pipe type centrifugal pump |
| CN108252924A (en) * | 2016-12-28 | 2018-07-06 | 上海佰诺泵阀有限公司 | For conveying the magnetic drive pump of ultralow temperature easy vaporized medium |
| CN108252924B (en) * | 2016-12-28 | 2024-04-09 | 上海佰诺泵阀有限公司 | Magnetic pump for conveying ultralow-temperature easily-vaporized medium |
| CN107100878A (en) * | 2017-05-02 | 2017-08-29 | 浙江腾宇泵阀设备有限公司 | A kind of magnetic drive pump with magnetic suspension bearing |
| CN107100878B (en) * | 2017-05-02 | 2023-09-01 | 浙江腾宇泵阀设备有限公司 | Magnetic pump with magnetic suspension bearing |
| CN106996397A (en) * | 2017-05-22 | 2017-08-01 | 丹东通博泵业有限公司 | The interior cooling recirculation system structure of magnetic drive pump |
| CN108361204A (en) * | 2018-04-25 | 2018-08-03 | 丹东晟辉石化设备有限公司 | It is anti-to evacuate anti-granular pattern magnetic drive pump |
| CN110529385A (en) * | 2018-05-24 | 2019-12-03 | 温州市邦明机械设备制造有限公司 | A kind of corrosion-resistant magnetic force driven centrifugal pump |
| CN108916067A (en) * | 2018-06-28 | 2018-11-30 | 陕西科技大学 | A kind of magnetic drive formula acid-proof pump |
| CN108953164A (en) * | 2018-06-28 | 2018-12-07 | 陕西科技大学 | A kind of contactless delivery pump |
| CN109026733A (en) * | 2018-08-17 | 2018-12-18 | 江苏新腾宇流体设备制造有限公司 | A kind of vertical low cavitation high security magnetic drive pump |
| CN108894981A (en) * | 2018-08-23 | 2018-11-27 | 太仓顺达磁力泵科技有限公司 | A kind of self cooled magnetic drive pump |
| CN111156174A (en) * | 2019-12-31 | 2020-05-15 | 六安市中盛泵阀制造有限公司 | Multifunctional magnetic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20180809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |