CN103925221A - Shielding electric pump used for conveying liquid medium with particles - Google Patents
Shielding electric pump used for conveying liquid medium with particles Download PDFInfo
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- CN103925221A CN103925221A CN201410171824.5A CN201410171824A CN103925221A CN 103925221 A CN103925221 A CN 103925221A CN 201410171824 A CN201410171824 A CN 201410171824A CN 103925221 A CN103925221 A CN 103925221A
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- bearing pedestal
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Abstract
The invention relates to a shielding electric pump used for conveying a liquid medium with particles. The shielding electric comprises a machine shell, a stator and a rotor, wherein the rotor is arranged through a front bearing pedestal and a rear bearing pedestal, the front bearing pedestal and the rear bearing pedestal are arranged at the two ends of the machine shell in a sealed mode, the stator is coaxially arranged in the machine shell in a sleeved mode, the rotor protrudes and extends out of the front bearing pedestal and is fixedly connected with an impeller, a pump body fixed to the machine shell in a sealed mode covers the impeller, the front bearing pedestal and the rotor are sealed through a stuffing box, and the pressure on the two sides of packing is equal. Cleaning fluid in a mother liquid tank enters a motor cavity through a connecting flange pipeline communicated with the rear bearing pedestal, is communicated with an air gap passageway through a first liquid inlet passageway and a second liquid inlet passageway and flows back to the connecting flange pipeline through a liquid outlet passageway and a circulating pipeline, and therefore closed circulation is formed, the pressure on the two sides of the packing is kept equal, the sealing performance between the motor cavity and a pump cavity is effectively improved under the action of pressure, and the particles are effectively prevented from entering the motor cavity. Meanwhile, the shielding electric pump is more convenient to clean due to the mother liquid tank and is convenient to detach and adjust.
Description
Technical field
The present invention relates to a kind of shielded electric-pump, relate in particular to and carry the shielded electric-pump of using containing particle-liquid medium.
Background technique
Shielded electric-pump is a kind of of a kind of no-leakage pump,, (as the severe toxicity, radioactivity), the liquid that inflammable and explosive and expensive or other special that are pernicious to people corrosive for delivery of having.Due to the specific use of shielded electric-pump, its structural type and common electric pump also have larger difference.
In the working environment of shielded electric-pump, a kind of more special working environment is to contain the more occasion of particle for delivery of liquid medium, and working environment is comparatively special.In order to prevent, in the motor cavity of particle intrusion shielded electric-pump, destroying the normal operation of motor, often, between the liquid and the liquid in pump chamber in motor cavity, adopt and need sealing to separate, avoid particle intrusion.Yet be limited to the narrow limitation of conventional seals mode, after using for a long time, in motor cavity, still can permeate gradually a certain amount of particle, be comparatively difficult to remove.
Summary of the invention
The object of the invention is to overcome the problem of above-mentioned prior art, the shielded electric-pump that provides a kind of conveying to use containing particle-liquid medium, it can effectively improve the sealability between motor cavity and pump chamber, effectively avoids particle to invade motor cavity.
Above-mentioned purpose is to be achieved through the following technical solutions:
Carry the shielded electric-pump of using containing particle-liquid medium, comprise casing, stator and rotor, front-end bearing pedestal and rear bearing block that described rotor is arranged on casing two ends by sealing are installed, described stator coaxial sleeve is located in described casing, described rotor protrudes out described front-end bearing pedestal and is fixedly connected with impeller, described impeller outside is covered with and described casing sealing fixed pump body, the side of the described pump housing is provided with the import being communicated with pump chamber in the pump housing, the upper end of the described pump housing is provided with the outlet being communicated with pump chamber, between described stator and described rotor, be provided with air gap channel, between described front-end bearing pedestal and described rotor, pass through packing box seal, the side of described rear bearing block is by adpting flange pipeline communication mother liquor tank, in order to provide cleaning solution in the motor cavity to shielded electric-pump, between described front-end bearing pedestal and described adpting flange pipeline, be connected with circulation canal, between the front slide bearing of installing in described front-end bearing pedestal and described rotor, be provided with liquid outlet channel, described liquid outlet channel is communicated with described circulation canal and described air gap channel, between the rear sliding bearing of installing in described rear bearing block and described rotor, be provided with the first feed pathway, in the end of the corresponding described rear sliding bearing of described rotor, be provided with the second feed pathway, described the first feed pathway, described the second feed pathway are communicated with respectively described air gap channel and described adpting flange pipeline, the pressure of described filler both sides equates.
Further, described rotor is respectively equipped with thrust disc near the relative inner of described front slide bearing and described rear sliding bearing.
Further, the originating port of described the second feed pathway is located on the side end face of described rotor, and the exhaust port of described the second feed pathway is arranged on the outer cylinder side wall surface of described rotor.
Further, described exhaust port is two, is symmetricly set on respectively on described rotor.
The shielded electric-pump that conveying of the present invention is used containing particle-liquid medium, comprise casing, stator and rotor, front-end bearing pedestal and rear bearing block that rotor is arranged on casing two ends by sealing are installed, stator coaxial sleeve is located in casing, rotor protrudes out front-end bearing pedestal and is fixedly connected with impeller, impeller outside is covered with and casing sealing fixed pump body, the side of the pump housing is provided with the import being communicated with pump chamber in the pump housing, the upper end of the pump housing is provided with the outlet being communicated with pump chamber, between stator and rotor, be provided with air gap channel, between front-end bearing pedestal and rotor, pass through packing box seal, the side of rear bearing block is by adpting flange pipeline communication mother liquor tank, in order to provide cleaning solution in the motor cavity to shielded electric-pump, between front-end bearing pedestal and adpting flange pipeline, be connected with circulation canal, between the front slide bearing of installing in front-end bearing pedestal and rotor, be provided with liquid outlet channel, liquid outlet channel communication loop passage and air gap channel, between the rear sliding bearing of installing in rear bearing block and rotor, be provided with the first feed pathway, after rotor correspondence, in the end of sliding bearing, be provided with the second feed pathway, the first feed pathway, the second feed pathway are communicated with respectively air gap channel and adpting flange pipeline, the pressure of described filler both sides equates.Cleaning solution in mother liquor tank is from adpting flange pipeline communication rear bearing block, enter in motor cavity, and be communicated with air gap channel through the first feed pathway, the second feed pathway, through liquid outlet channel and circulating line, flow back into adpting flange pipeline place again, thereby form the circulation of sealing, make the pressure of filler both sides keep equating, thereby by the effect of pressure, effectively improve the sealability between motor cavity and pump chamber, effectively avoided particle to invade motor cavity.Meanwhile, the setting of mother liquor tank is also convenient to clean more, debugging for convenience detach.
Accompanying drawing explanation
The structural principle schematic diagram of Fig. 1 shielded electric-pump that to be conveying of the present invention use containing particle-liquid medium.
Embodiment
To wood, invention is described in further detail according to drawings and embodiments below.
As shown in Figure 1, the shielded electric-pump that conveying described in the embodiment of the present invention is used containing particle-liquid medium, comprise casing 1, stator 2 and rotor 3, front-end bearing pedestal 4 and rear bearing block 5 that rotor 3 is arranged on casing 1 two ends by sealing are installed, stator 2 coaxial sleeves are located in casing 1, rotor 3 protrudes out front-end bearing pedestal 4 and is fixedly connected with impeller 6, impeller 6 outsides are covered with and casing 1 sealing fixed pump body 7, the side of the pump housing 7 is provided with the import 71 being communicated with the interior pump chamber 7a of the pump housing 7, the upper end of the pump housing 7 is provided with the outlet 72 being communicated with pump chamber 7a, between stator 2 and rotor 3, be provided with air gap channel 8, between front-end bearing pedestal 4 and rotor 3, by filler 9 letters, seal, the side of rear bearing block 5 is communicated with mother liquor tank 11 by adpting flange pipeline 10, in order to provide cleaning solution in the motor cavity to shielded electric-pump, between front-end bearing pedestal 4 and adpting flange pipeline 10, be connected with circulation canal 12, between the front slide bearing 41 of front-end bearing pedestal 4 interior installations and rotor 3, be provided with liquid outlet channel 13, liquid outlet channel 13 communication loop passages 12 and air gap channel 8, between the rear sliding bearing 51 of rear bearing block 5 interior installations and rotor 3, be provided with the first feed pathway 15, after rotor 3 is corresponding, in the end 31 of sliding bearings 51, be provided with the second feed pathway 16, the first feed pathway 15, the second feed pathway 16 is communicated with respectively air gap channel 8 and adpting flange pipeline 10, the pressure of filler 9 both sides equates.
Rotor 3 is respectively equipped with thrust disc 17 near the relative inner of front slide bearing 4 and rear sliding bearing 5.
The originating port of the second feed pathway 16 is located on the side end face of rotor 3, and the exhaust port of the second feed pathway 16 is arranged on the outer cylinder side wall surface of rotor 3.Exhaust port is two, is symmetricly set on respectively on rotor 3.
The foregoing is only explanation embodiments of the present invention; be not limited to the present invention, for a person skilled in the art, within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (4)
1. carry the shielded electric-pump of using containing particle-liquid medium, comprise casing, stator and rotor, front-end bearing pedestal and rear bearing block that described rotor is arranged on casing two ends by sealing are installed, described stator coaxial sleeve is located in described casing, described rotor protrudes out described front-end bearing pedestal and is fixedly connected with impeller, described impeller outside is covered with and described casing sealing fixed pump body, the side of the described pump housing is provided with the import being communicated with pump chamber, the upper end of the described pump housing is provided with the outlet being communicated with pump chamber in the pump housing, between described stator and described rotor, be provided with air gap channel, between described front-end bearing pedestal and described rotor, pass through packing box seal, it is characterized in that, the side of described rear bearing block is by adpting flange pipeline communication mother liquor tank, in order to provide cleaning solution in the motor cavity to shielded electric-pump, between described front-end bearing pedestal and described adpting flange pipeline, be connected with circulation canal, between the front slide bearing of installing in described front-end bearing pedestal and described rotor, be provided with liquid outlet channel, described liquid outlet channel is communicated with described circulation canal and described air gap channel, between the rear sliding bearing of installing in described rear bearing block and described rotor, be provided with the first feed pathway, in the end of the corresponding described rear sliding bearing of described rotor, be provided with the second feed pathway, described the first feed pathway, described the second feed pathway are communicated with respectively described air gap channel and described adpting flange pipeline, the pressure of described filler both sides equates.
2. the shielded electric-pump that conveying as claimed in claim 1 is used containing particle-liquid medium, is characterized in that, described rotor is respectively equipped with thrust disc near the relative inner of described front slide bearing and described rear sliding bearing.
3. the shielded electric-pump that conveying as claimed in claim 2 is used containing particle-liquid medium, it is characterized in that, the originating port of described the second feed pathway is located on the side end face of described rotor, and the exhaust port of described the second feed pathway is arranged on the outer cylinder side wall surface of described rotor.
4. the shielded electric-pump that conveying as claimed in claim 3 is used containing particle-liquid medium, is characterized in that, described exhaust port is two, is symmetricly set on respectively on described rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171824.5A CN103925221A (en) | 2014-04-25 | 2014-04-25 | Shielding electric pump used for conveying liquid medium with particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171824.5A CN103925221A (en) | 2014-04-25 | 2014-04-25 | Shielding electric pump used for conveying liquid medium with particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103925221A true CN103925221A (en) | 2014-07-16 |
Family
ID=51143558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410171824.5A Pending CN103925221A (en) | 2014-04-25 | 2014-04-25 | Shielding electric pump used for conveying liquid medium with particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103925221A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043472A (en) * | 2019-04-04 | 2019-07-23 | 常州市江南三翔电机有限公司 | A kind of pump shield electric machine transported containing particle-liquid |
| CN113217404A (en) * | 2021-05-25 | 2021-08-06 | 大福泵业有限公司 | High-efficient type canned motor pump of control module installation of being convenient for |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403927Y (en) * | 1999-05-14 | 2000-11-01 | 李世堃 | Non-shaft seal magnetic suspension pump |
| CN201461441U (en) * | 2009-07-30 | 2010-05-12 | 上海新沪电机厂有限公司 | Completely fusing type shielding electric pump |
| CN202417959U (en) * | 2011-12-26 | 2012-09-05 | 大连环友屏蔽泵有限公司 | Non-clogging shield pump |
| CN202718879U (en) * | 2012-06-12 | 2013-02-06 | 上海日机装屏蔽泵有限公司 | Canned motor pump system for conveying slurry |
| CN103147973A (en) * | 2013-02-28 | 2013-06-12 | 中国石油大学(华东) | Pressure compensating device for seal of undersea slurry lifting pump |
| CN203809306U (en) * | 2014-04-25 | 2014-09-03 | 无锡市安化屏蔽电泵厂 | Shielding electric pump for conveying liquid medium containing particles |
-
2014
- 2014-04-25 CN CN201410171824.5A patent/CN103925221A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403927Y (en) * | 1999-05-14 | 2000-11-01 | 李世堃 | Non-shaft seal magnetic suspension pump |
| CN201461441U (en) * | 2009-07-30 | 2010-05-12 | 上海新沪电机厂有限公司 | Completely fusing type shielding electric pump |
| CN202417959U (en) * | 2011-12-26 | 2012-09-05 | 大连环友屏蔽泵有限公司 | Non-clogging shield pump |
| CN202718879U (en) * | 2012-06-12 | 2013-02-06 | 上海日机装屏蔽泵有限公司 | Canned motor pump system for conveying slurry |
| CN103147973A (en) * | 2013-02-28 | 2013-06-12 | 中国石油大学(华东) | Pressure compensating device for seal of undersea slurry lifting pump |
| CN203809306U (en) * | 2014-04-25 | 2014-09-03 | 无锡市安化屏蔽电泵厂 | Shielding electric pump for conveying liquid medium containing particles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043472A (en) * | 2019-04-04 | 2019-07-23 | 常州市江南三翔电机有限公司 | A kind of pump shield electric machine transported containing particle-liquid |
| CN113217404A (en) * | 2021-05-25 | 2021-08-06 | 大福泵业有限公司 | High-efficient type canned motor pump of control module installation of being convenient for |
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Application publication date: 20140716 |
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| WD01 | Invention patent application deemed withdrawn after publication |