CN105090051A - Shielded electric pump - Google Patents
Shielded electric pump Download PDFInfo
- Publication number
- CN105090051A CN105090051A CN201510468576.5A CN201510468576A CN105090051A CN 105090051 A CN105090051 A CN 105090051A CN 201510468576 A CN201510468576 A CN 201510468576A CN 105090051 A CN105090051 A CN 105090051A
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- pump
- motor casing
- shielded electric
- main shaft
- circulation pipe
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Abstract
The invention discloses a shielded electric pump which comprises a pump body, a motor shell, impellers and a main shaft. The motor shell is arranged on the pump body; fixing bolts are arranged on the motor shell, and the motor shell is fixedly connected with the pump body through the fixing bolts; the impellers are arranged inside the pump body, and the impellers are fixedly connected with the main shaft; the main shaft is provided with a lower bearing seat and an upper bearing seat, a shaft sleeve and a graphite bearing are arranged inside the lower bearing seat and the upper bearing seat respectively, and the main shaft is rotatably connected with the graphite bearing through the shaft sleeve; an end cover is arranged at the lower end of the lower bearing seat, and the end cover is in sealed connection with the pump body; a stator assembly and a rotor assembly are arranged inside the motor shell in sequence. The shielded electric pump is convenient to install, compact in structure, stable in operation and easy to maintain, and a circulating cooling mode is adopted, so that the pump body does not overheat after being used for a long time.
Description
Technical field
The present invention relates to a kind of pump housing technical field, particularly relate to a kind of shielded electric-pump.
Background technique
Conveying liquid or make the machinery of fluid pressurization.Sensu lato pump is conveying fluid or the machinery making its supercharging, comprises the machinery of some conveying gas.Pump passes to liquid the energy of the mechanical energy of prime mover or other energy, and the energy of liquid is increased.
The lifting of water is for human lives and produce all very important.Have various water lift utensil ancient times, as the chain pump (front the 17th century) of Egypt, Chinese well sweep (front the 17th century), winch (front 11st century), waterwheel (1st century of Christian era), and the screw rod etc. of B.C. 3rd century ancient Greek Archimedes invention.B.C. about 200 years, the western biousse of ancient Greek's craftsman's cut invented the most original reciprocating pump-fire extinguishing pump.Just there is the record about 4 blade sliding vane pumps as far back as 1588, occurred other various rotary pumps later successively.1689, the D. Pa Panfa of France understood the volute pump of 4 blade impellers.1818, there is the centrifugal pump with straight radial blade, semi-open type double-entry impeller and spiral case in the U.S..1840 ~ 1850 years, the H.R. Wo Xindun of the U.S. invented pumping cylinder and the opposed direct acting reciprocating pump of steam of steam cylinder, indicates the formation of modern piston pump.1851 ~ 1875 years, the multistage centrifugal pump with stator was invented in succession, made development high-lift centrifugal pump become possibility.Subsequently, various pump is come out one after another.Along with the application of various advanced technology, the efficiency of pump progressively improves, and performance range and application also day by day expand.From pump performance scope, the flow of huge pump is per hour reaches more than hundreds of thousands cubic meter, and the flow of micropump is per hour then below tens milliliters; The pressure of pump can from normal pressure to up to more than 19.61Mpa (200kgf/cm2); The temperature being transferred liquid is minimum reaches less than-200 degrees Celsius, reaches as high as more than 800 degrees Celsius.Transport pump liquid of a great variety, such as carries water (clear water, sewage etc.), fluid, acid & alkali liquid, suspension and liquid metal etc.
In the production of chemical industry and oil sector, raw material, semi-finished product and finished product are liquid mostly, and raw material is made semi-finished product and finished product, need through complicated manufacturing process, pump serves the effect of the pressure flow carried liquid and provide chemical reaction in these processes, in addition, in a lot of device, also temperature is regulated with pump.
In agricultural production, pump is the main mechanical facilities of irrigation and drainage.China rural area is with a vast territory, and annual rural area all needs a large amount of pumps, and in general to account for pump gross production over half for agricultural pump.In mining industry and metallurgical industry, pump is also use maximum equipment.Mine needs, with pump drainage, in ore dressing, smelting and the operation of rolling, to supply water with pump.At power department, nuclear power station needs core main pump, two stage pump, triplex, thermoelectricity plant needs a large amount of boiler feed pumps, condensate pump, circulating water pump and ash pump etc.In national defense construction, the adjustment of aircraft flap, tail vane and undercarriage, warship and the rotation of tank turret, the sink-float etc. of submarine all need to use pump.High pressure and active liquid, what have also requires that pump is without any leakage etc.In a word, be no matter aircraft, rocket, tank, submarine or drilling well, mining, train, boats and ships, or daily life, need with pump everywhere, the pump that grows on trees is in operation.Just like this, so pump is classified as universal machine, it is the class major product in mechanical industry.
Motor-drive pump, namely uses electrically driven (operated) pump.Motor-drive pump is made up of the pump housing, lifting pipe, pump seat, submersible motor (comprising cable) and starting guard equipment etc.The pump housing is the workpiece of submersible pump, and it is made up of component such as intake pipe, blower inlet casing, check valve, pump shaft and impellers.Impeller is fixed with two kinds of modes on axle.
Shielded electric-pump is a kind of one of no-leakage pump, has corrosive, that be pernicious to people (as severe toxicity, radioactivity), inflammable and explosive and expensive or other special liquid for carrying.One made by motor and pump.Motor inner chamber and rotor outer circle setting-in housing respectively, is full of carried liquid between two covers.Horizontal and vertical two kinds can be divided into again according to mounting type difference.For carrying, there is corrosive, that be pernicious to people (as severe toxicity, radioactivity), inflammable and explosive and expensive or other special liquid, or other requires complete leak free occasion.Be mainly used in the industries such as oil, chemical industry, atomic power.One made by motor and pump.Motor inner chamber and rotor outer circle setting-in housing respectively, is full of carried liquid between two covers.Leakage is avoided without shaft seal.Because its motor special of canned motorpump electric machine structure is also called shield electric machine.
Current existing shielded electric-pump is at the sealing structure owing to adopting housing, and it is overheated easily to cause in use, and install inconvenient when using, operation stability is not high simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of easy for installation, and compact structure is stable, easily safeguards, adopts hydronic mode, can keep the pump housing use for a long time can not be overheated shielded electric-pump.
For solving the problem, the present invention adopts following technological scheme:
A kind of shielded electric-pump, comprise the pump housing, motor casing, impeller and main shaft, described motor casing is located on the pump housing, described motor casing is provided with fixing bolt, described motor casing is fixedly connected with the pump housing by fixing bolt, described impeller is located in the pump housing, described impeller is fixedly connected with main shaft, described main shaft is respectively arranged with step and upper bearing bracket, axle sleeve and graphite bearing is respectively arranged with in described step and upper bearing bracket, described main shaft is rotationally connected by axle sleeve and graphite bearing, described step lower end is provided with end cap, described end cap and the pump housing are tightly connected, stator module and rotor assembly is disposed with in described motor casing, described rotor assembly arranged outside has Rotor can, described stator module arranged outside has stator can, described rotor assembly is fixedly connected with main shaft, described rotor assembly two ends are provided with thrust disc, described thrust disc is connected with main axis, described motor casing both sides are provided with Circulation pipe one and Circulation pipe two.
As preferably, the described pump housing is provided with inlet port and outlet port, turnover bore specification is identical can directly on any position being arranged on pipeline valve, and easy to loading and unloading, floor space is little.
As preferably, described motor casing is communicated with inlet port by Circulation pipe one, and the liquid-circulating in maintenance Circulation pipe one flows.
As preferably, described motor casing is communicated with outlet port by Circulation pipe two, and the liquid-circulating in maintenance Circulation pipe two flows.
As preferably, described Circulation pipe two end is provided with filter screen, can filter liquide, prevents occlude circulation pipe two.
As preferably, described motor casing is provided with outlet valve, the air in motor casing can be got rid of, keep flow of fluid smooth and easy.
As preferably, described step is fixedly connected with motor casing respectively with upper bearing bracket, and holding structure is reliable and stable.
As preferably, described motor casing side is provided with cable ejector, and described cable ejector and stator module are electrically connected, and cable ejector is conveniently linked into power supply.
The invention has the beneficial effects as follows: the stator can of setting and the sub-housing of rotor can carry out closing isolation, carried liquid is full of between two covers, leakage is avoided without shaft seal, the thrust disc arranged directly carries the axial force of rotor, keep spindle operation reliable and stable, graphite bearing self lubricity is very strong, corrosion-resistant, can not lubricant oil be used and operate for a long time, shielded electric-pump is maintained easily, the high-pressure liquid that Circulation pipe one and Circulation pipe two can directly import in outlet port carries out circulating cooling, the pump housing can be kept to use for a long time can not be overheated, increase the service life.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural drawing of a kind of shielded electric-pump of the present invention.
Embodiment
Consult shown in Fig. 1, a kind of shielded electric-pump, comprise the pump housing 1, motor casing 2, impeller 3 and main shaft 4, described motor casing 2 is located on the pump housing 1, described motor casing 2 is provided with fixing bolt 5, described motor casing 2 is fixedly connected with the pump housing 1 by fixing bolt 5, described impeller 3 is located in the pump housing 1, described impeller 3 is fixedly connected with main shaft 4, described main shaft 4 is respectively arranged with step 6 and upper bearing bracket 7, axle sleeve 8 and graphite bearing 9 is respectively arranged with in described step 6 and upper bearing bracket 7, described main shaft 4 is rotationally connected by axle sleeve 8 and graphite bearing 9, described step 6 lower end is provided with end cap 10, described end cap 10 is tightly connected with the pump housing 1, stator module 11 and rotor assembly 12 is disposed with in described motor casing 2, described rotor assembly 12 arranged outside has Rotor can 13, described stator module 11 arranged outside has stator can 14, described rotor assembly 12 is fixedly connected with main shaft 4, described rotor assembly 12 two ends are provided with thrust disc 15, described thrust disc 15 is rotationally connected with main shaft 4, described motor casing 2 both sides are provided with Circulation pipe 1 and Circulation pipe 2 17.
The described pump housing 1 is provided with inlet port 18 and outlet port 19.
Described motor casing 2 is communicated with inlet port 18 by Circulation pipe 1.
Described motor casing 2 is communicated with outlet port 19 by Circulation pipe 2 17.
Described Circulation pipe 2 17 end is provided with filter screen 20.
Described motor casing 2 is provided with outlet valve 21.
Described step 6 is fixedly connected with motor casing 2 respectively with upper bearing bracket 7.
Described motor casing 2 side is provided with cable ejector 22, and described cable ejector 22 is electrically connected with stator module 11.
In use, cable ejector 22 is linked into power supply, stator module 11 and stator module produce electromagnetic induction, make main shaft 4 rotate impeller 3 to rotate, fluid is entered from inlet port 18, and discharge at a high speed from inlet port 18, partially liq flow in motor casing 2 through filter screen 20 from Circulation pipe 2 17, again flow into inlet port 16 through Circulation pipe 1, realize circulation temperature lowering.
The invention has the beneficial effects as follows: the stator can of setting and the sub-housing of rotor can carry out closing isolation, carried liquid is full of between two covers, leakage is avoided without shaft seal, the thrust disc arranged directly carries the axial force of rotor, keep spindle operation reliable and stable, graphite bearing self lubricity is very strong, corrosion-resistant, can not lubricant oil be used and operate for a long time, shielded electric-pump is maintained easily, the high-pressure liquid that Circulation pipe one and Circulation pipe two can directly import in outlet port carries out circulating cooling, the pump housing can be kept to use for a long time can not be overheated, increase the service life.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection scope of the present invention; therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (8)
1. a shielded electric-pump, it is characterized in that: comprise the pump housing, motor casing, impeller and main shaft, described motor casing is located on the pump housing, described motor casing is provided with fixing bolt, described motor casing is fixedly connected with the pump housing by fixing bolt, described impeller is located in the pump housing, described impeller is fixedly connected with main shaft, described main shaft is respectively arranged with step and upper bearing bracket, axle sleeve and graphite bearing is respectively arranged with in described step and upper bearing bracket, described main shaft is rotationally connected by axle sleeve and graphite bearing, described step lower end is provided with end cap, described end cap and the pump housing are tightly connected, stator module and rotor assembly is disposed with in described motor casing, described rotor assembly arranged outside has Rotor can, described stator module arranged outside has stator can, described rotor assembly is fixedly connected with main shaft, described rotor assembly two ends are provided with thrust disc, described thrust disc is connected with main axis, described motor casing both sides are provided with Circulation pipe one and Circulation pipe two.
2. shielded electric-pump according to claim 1, is characterized in that: the described pump housing is provided with inlet port and outlet port.
3. shielded electric-pump according to claim 2, is characterized in that: described motor casing is communicated with inlet port by Circulation pipe one.
4. shielded electric-pump according to claim 3, is characterized in that: described motor casing is communicated with outlet port by Circulation pipe two.
5. shielded electric-pump according to claim 4, is characterized in that: described Circulation pipe two end is provided with filter screen.
6. shielded electric-pump according to claim 5, is characterized in that: described motor casing is provided with outlet valve.
7. shielded electric-pump according to claim 6, is characterized in that: described step is fixedly connected with motor casing respectively with upper bearing bracket.
8. shielded electric-pump according to claim 7, is characterized in that: described motor casing side is provided with cable ejector, and described cable ejector and stator module are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510468576.5A CN105090051A (en) | 2015-08-04 | 2015-08-04 | Shielded electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510468576.5A CN105090051A (en) | 2015-08-04 | 2015-08-04 | Shielded electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090051A true CN105090051A (en) | 2015-11-25 |
Family
ID=54571177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510468576.5A Pending CN105090051A (en) | 2015-08-04 | 2015-08-04 | Shielded electric pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN105090051A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909534A (en) * | 2016-07-12 | 2016-08-31 | 合肥新沪屏蔽泵有限公司 | Shield pump |
| CN110929407A (en) * | 2019-11-29 | 2020-03-27 | 清华大学 | Energy efficiency evaluation method of shielding electric pump for heating |
| CN111648974A (en) * | 2020-06-16 | 2020-09-11 | 杨华标 | Permanent magnet frequency conversion canned motor pump |
| CN113958514A (en) * | 2021-11-22 | 2022-01-21 | 问茂荣 | Shielding pump for enhancing cooling and cleaning tail liquid |
| CN114165458A (en) * | 2021-11-26 | 2022-03-11 | 田娜 | Shielding type pipeline pump for urban heating based on water-cooling principle |
| CN114876814A (en) * | 2022-04-22 | 2022-08-09 | 浙江理工大学 | Modular shaftless drive deep sea mining mixing and conveying pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2769571Y (en) * | 2005-01-28 | 2006-04-05 | 上海诺赛泵业制造有限公司 | Water-cooling water pump |
| CN2793376Y (en) * | 2005-05-20 | 2006-07-05 | 上海奥一泵业制造有限公司 | Vertical shielded multi-stage pipeline pump |
| CN201574942U (en) * | 2009-12-11 | 2010-09-08 | 开利泵业(集团)有限公司 | External circulation water-cooling centrifugal pump |
| CN202520638U (en) * | 2012-04-19 | 2012-11-07 | 张惠国 | Steady-flow variable-pressure shield pump |
| CN102954005A (en) * | 2011-08-16 | 2013-03-06 | 上海佰诺泵阀有限公司 | Low-noise electric pipeline shielding pump |
| US20130230416A1 (en) * | 2012-03-05 | 2013-09-05 | Electrolux Home Products, Inc. | Safety arrangement for an integrated heater, pump, and motor for an appliance |
| CN203239640U (en) * | 2013-04-17 | 2013-10-16 | 上海东方泵业(集团)有限公司 | Shield pump utilizing self-medium for circulation cooling |
-
2015
- 2015-08-04 CN CN201510468576.5A patent/CN105090051A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2769571Y (en) * | 2005-01-28 | 2006-04-05 | 上海诺赛泵业制造有限公司 | Water-cooling water pump |
| CN2793376Y (en) * | 2005-05-20 | 2006-07-05 | 上海奥一泵业制造有限公司 | Vertical shielded multi-stage pipeline pump |
| CN201574942U (en) * | 2009-12-11 | 2010-09-08 | 开利泵业(集团)有限公司 | External circulation water-cooling centrifugal pump |
| CN102954005A (en) * | 2011-08-16 | 2013-03-06 | 上海佰诺泵阀有限公司 | Low-noise electric pipeline shielding pump |
| US20130230416A1 (en) * | 2012-03-05 | 2013-09-05 | Electrolux Home Products, Inc. | Safety arrangement for an integrated heater, pump, and motor for an appliance |
| CN202520638U (en) * | 2012-04-19 | 2012-11-07 | 张惠国 | Steady-flow variable-pressure shield pump |
| CN203239640U (en) * | 2013-04-17 | 2013-10-16 | 上海东方泵业(集团)有限公司 | Shield pump utilizing self-medium for circulation cooling |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909534A (en) * | 2016-07-12 | 2016-08-31 | 合肥新沪屏蔽泵有限公司 | Shield pump |
| CN110929407A (en) * | 2019-11-29 | 2020-03-27 | 清华大学 | Energy efficiency evaluation method of shielding electric pump for heating |
| CN110929407B (en) * | 2019-11-29 | 2021-06-08 | 清华大学 | Energy efficiency evaluation method of shielding electric pump for heating |
| CN111648974A (en) * | 2020-06-16 | 2020-09-11 | 杨华标 | Permanent magnet frequency conversion canned motor pump |
| CN111648974B (en) * | 2020-06-16 | 2024-05-03 | 杨华标 | Permanent magnet variable frequency shielding pump |
| CN113958514A (en) * | 2021-11-22 | 2022-01-21 | 问茂荣 | Shielding pump for enhancing cooling and cleaning tail liquid |
| CN114165458A (en) * | 2021-11-26 | 2022-03-11 | 田娜 | Shielding type pipeline pump for urban heating based on water-cooling principle |
| CN114876814A (en) * | 2022-04-22 | 2022-08-09 | 浙江理工大学 | Modular shaftless drive deep sea mining mixing and conveying pump |
| CN114876814B (en) * | 2022-04-22 | 2023-09-12 | 浙江理工大学 | Modularized shaftless-driven deep sea mining mixed transportation pump |
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Application publication date: 20151125 |