CN207082992U - A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG - Google Patents
A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG Download PDFInfo
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- CN207082992U CN207082992U CN201720925620.5U CN201720925620U CN207082992U CN 207082992 U CN207082992 U CN 207082992U CN 201720925620 U CN201720925620 U CN 201720925620U CN 207082992 U CN207082992 U CN 207082992U
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- liquid
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- lng
- rotating shaft
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- 239000007788 liquid Substances 0.000 title claims abstract description 38
- 241000883990 Flabellum Species 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000003949 liquefied natural gas Substances 0.000 description 27
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Motor Or Generator Cooling System (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG, including shell, the lower end of the shell is provided with the first inlet, upper end is provided with the first liquid outlet, enclosure is provided with electric machine assembly and immersed pump component, and described electric machine assembly is coaxially disposed in the top of immersed pump component, and described electric machine assembly includes support, the stator being arranged in support and the rotor in stator, fluid passage is left between the support and shell, described stator includes stator core and stator coil；Described rotor includes rotor core and rotating shaft, and described support both ends are respectively arranged with upper end cover and bottom end cover, and the junction of described upper end cover and rotating shaft is provided with clutch shaft bearing, and the junction of described bottom end cover and rotating shaft is provided with second bearing；Described immersed pump component includes pump shaft and flabellum, and pump shaft is coaxially fixedly installed on the bottom of rotating shaft, and described rotating shaft and pump shaft are integral type structure, and flabellum surround and is sheathed on pump shaft.The purpose of this utility model is to provide a kind of LNG and dived liquid ultralow temperature integrated type threephase asynchronous, and installation centering is convenient, be not easy to vibrate, cost is low, cooling effectiveness is high, stator coil is not easy to glide.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of phase asynchronous electricity of the latent ultralow temperature integrated types of liquid of LNG
Motivation.
Background technology
LNG is liquefied natural gas (Liquefied Natural Gas, LNG) abbreviation, freezes natural gas under normal pressure
, can be so that it becomes liquid be liquefied natural gas to -162 DEG C or so.It is natural gas by purification (dehydration, de- hydrocarbon, de- sour gas
Body) after, using throttling, the technique of expansion and additional low-temperature receiver refrigeration makes methane become liquid and be formed.LNG volume is about it
The 1/620 of gaseous volume.Therefore liquefied natural gas is the effective means of natural gas storing and transport, has been obtained in recent years rapidly
Development.LNG is considerable as the popularization and application at home of new automobile fuel, prospect.The main of LNG Vehicle Fueling Stations is set
Have:LNG storage tank, LNG cryogenic pumps and LNG filling machines.LNG storage tank is a kind of double-layer vacuum thermally insulated container, at present domestic technique
Maturation, the tank of 50-200m3 sizes can be produced.And the exploitation of LNG cryogenic pumps and LNG aerating machine equipments, the country start late,
Rely primarily on import at present.LNG immersed pumps be it is a kind of by pump and motor integral installation in sealed metal container, zero can be accomplished
Leakage, avoid producing explosive atmosphere, eliminate the transportation of liquefied natural gas of ignition condition and the core drive of associated low temperature liquid
Output equipment.
Mainly there is the shortcomings that following aspect the country on LNG immersed pumps at present:（1）Independent immersed pump and independent electricity
Motivation is connected using shaft coupling, and centering difficulty is big during installation, because immersed pump and motor rotor not exclusively coaxially hold during operation
Vibration is also easy to produce, efficiency is low together with two axis connections of immersed pump and motor, and bearing dosage is more, and immersed pump and motor are respectively used
Two bearings, totally four sets, cost is high；
2nd, motor coolant is cooled down by air gap, rotor core axial direction liquid-through hole, due to air gap and rotor core
Axial liquid-through hole sectional area is small, and logical flow quantity is small, and motor produces heat and can not taken out of completely, and it is cold to lead to liquid by rotor core
But, it is larger that resistance is produced during motor running, machinery consumption is big, and motor efficiency is low；
3rd, LNG dives liquid motor due to being vertical installation, under low temperature longtime running, there is stator line in wound stator iron core
Circle is easily glided by Action of Gravity Field from stator coring groove, Damage to insulation.
Utility model content
To overcome deficiency of the prior art, the purpose of this utility model is to provide a kind of ultralow temperature integrated type of the latent liquid of LNG
Threephase asynchronous, installation centering is convenient, be not easy to vibrate, cost is low, cooling effectiveness is high, stator coil is not easy to glide.
The technical solution adopted in the utility model is：A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG, including
Shell, the lower end of the shell are provided with the first inlet, and upper end is provided with the first liquid outlet, enclosure be provided with electric machine assembly and
Immersed pump component, described electric machine assembly are coaxially disposed in the top of immersed pump component, and described electric machine assembly includes support, set
The stator in support and the rotor in stator are put, fluid passage, described stator are left between the support and shell
Including stator core and stator coil；Described rotor includes rotor core and rotating shaft, and described support both ends are respectively arranged with
The junction of upper end cover and bottom end cover, described upper end cover and rotating shaft is provided with clutch shaft bearing, described bottom end cover and rotating shaft
Junction is provided with second bearing；Described immersed pump component includes pump shaft and flabellum, and pump shaft is coaxially fixedly installed on rotating shaft
Bottom, and described rotating shaft and pump shaft are integral type structure, flabellum surround and is sheathed on pump shaft.
Preferably, being provided with the second inlet on the bottom end cover, the second liquid outlet is provided with the upper end cover.
Preferably, multiple liquid-through holes vertically are provided with the stator core yoke portion, and the liquid-through hole is uniform
In on the same circumference centered on rotating shaft.
Preferably, a diameter of 20mm-35mm of the liquid-through hole.
Preferably, air gap channel vertically is provided between the stator core and rotor core.
Preferably, the top of the stator core is fixedly installed the block for preventing that stator coil from gliding.
Preferably, the block is fixed with stator coil with electric wire and is intertwined.
Preferably, the clutch shaft bearing and second bearing are cryogenic bearing.
By above-mentioned setting, the beneficial effects of the utility model are：(1) electric machine assembly shares one with immersed pump component
Axle, equivalent to shared rotor, in the absence of installation centering centering problem, vibration, efficiency high are not likely to produce, bearing subtracts after sharing rotor
It is few 2 sets, it is cost-effective；
（2）Multiple axial liquid-through holes are set in stator core yoke portion, stator core yoke portion is big, and coolant rate is big, electronic
Machine good cooling results, cancel rotor liquid-through hole, resistance reduces larger during operation, and motor efficiency is high；
（3）Positioning action is served after the top increase block of stator core, stator coil does not glide, and ensures motor peace
Complete reliable longtime running.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the present utility model easily.
Refer to Fig. 1.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating
Content disclosed in specification, so that those skilled in the art understands and reads, being not limited to the utility model can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influenceing the effect of the utility model can be generated and the purpose that can reach, it all should fall and be taken off in the utility model
In the range of the technology contents shown can be covered.Meanwhile in this specification it is cited as " on ", " under ", "left", "right", " in
Between " and " one " etc. term, be merely convenient to understanding for narration, and be not used to limit the enforceable scope of the utility model, its
Relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the utility model.
A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG, including shell 1, the lower end of shell 1 are entered provided with first
Liquid mouth 2, upper end are provided with the first liquid outlet 3, and shell 1 is internally provided with electric machine assembly and immersed pump component, and electric machine assembly is coaxially set
The top of immersed pump component is placed in, electric machine assembly includes support 41, the stator 42 being arranged in support 41 and in stator
Rotor 43, leaves fluid passage 6 between support 41 and shell 1, stator 42 includes stator core 44 and stator coil 45；Rotor 43
Including rotor core 46 and rotating shaft 47, the both ends of support 41 are respectively arranged with upper end cover 48 and bottom end cover 49, upper end cover 48 and rotating shaft
47 junction is provided with clutch shaft bearing 51, and bottom end cover 49 and the junction of rotating shaft 47 are provided with second bearing 52, to adapt to LNG
Liquid need, clutch shaft bearing 51 and second bearing 52 are cryogenic bearing.Immersed pump component includes pump shaft 71 and flabellum 72, pump
Axle 71 is coaxially fixedly installed on the bottom of rotating shaft 47, and rotating shaft 47 and pump shaft 71 are integral type structure, electric machine assembly and immersed pump
Component shares an axle, equivalent to shared rotor, in the absence of installation centering centering problem, is not likely to produce vibration, efficiency high, shares
2 sets of bearing reduction, cost-effective after rotor；Flabellum 72 surround and is sheathed on pump shaft 71.
The second inlet 8 is provided with bottom end cover 49, the second liquid outlet 9 is provided with upper end cover 48.The yoke of stator core 44
Multiple liquid-through holes 10 vertically are provided with portion, and liquid-through hole 10 is distributed on the same circumference centered on rotating shaft 47.It is logical
A diameter of 20mm-35mm of fluid apertures 10.Air gap channel 11 vertically is provided between stator core 44 and rotor core 46,
The yoke portion of stator core 44 sets multiple axial liquid-through holes 10, and the yoke portion of stator core 44 is big, and coolant rate is big, motor cooling effect
Fruit is good, cancels rotor liquid-through hole, and resistance reduces larger during operation, and motor efficiency is high.
To prevent stator coil 15 from gliding, being fixedly installed on the top of stator core 44 prevents what stator coil 45 from gliding
Block 12, in specific production, block 12 is fixed with stator coil 45 with electric wire and is intertwined, and ensures that motor is safe and reliable
Longtime running.
Motor of the present utility model is completely submerged in storage tank in LNG at work, and the moment is in low-temperature condition, opens at any time
It is dynamic, in the absence of precooling process.Motor does not need axle envelope, it is not required that makes flame-proof electric motor, it is only necessary to makes terminal box anti-
Quick-fried terminal box, so as to avoid the leakage problem in LNG in course of conveying well, safety and reliability has obtained further
Raising.As shown by the arrows in Figure 1, after electric motor starting, LNG liquid enters shell in the presence of flabellum, from the first inlet 2
In 1, most of liquid flows out by the fluid passage 6 between support 41 and shell 1 from the first liquid outlet 3, remaining a part of liquid
Body enters inside the support 41 of electric machine assembly from the second inlet 8 on bottom end cover 49, and liquid is flowed through in the yoke portion of stator core 44
Multiple liquid-through holes 10 and air gap channel 11 vertically, heat caused by inside electric machine assembly is taken away, final liquid is from upper
The outflow motor component of the second liquid outlet 9 on end cap 48, finally flows out from the first liquid outlet 3 of the upper end of shell 1.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (8)
- The ultralow temperature integrated type threephase asynchronous of liquid 1. a kind of LNG dives, it is characterised in that：Including shell, under the shell End is provided with the first inlet, and upper end is provided with the first liquid outlet, and enclosure is provided with electric machine assembly and immersed pump component, described Electric machine assembly is coaxially disposed in the top of immersed pump component, and described electric machine assembly includes support, the stator being arranged in support With the rotor in stator, fluid passage is left between the support and shell, described stator includes stator core and determined Subcoil；Described rotor includes rotor core and rotating shaft, and described support both ends are respectively arranged with upper end cover and bottom end cover, institute The upper end cover stated and the junction of rotating shaft are provided with clutch shaft bearing, and the junction of described bottom end cover and rotating shaft is provided with the second axle Hold；Described immersed pump component includes pump shaft and flabellum, and pump shaft is coaxially fixedly installed on the bottom of rotating shaft, and described rotating shaft and Pump shaft is integral type structure, and flabellum surround and is sheathed on pump shaft.
- The ultralow temperature integrated type threephase asynchronous of liquid 2. a kind of LNG according to claim 1 dives, it is characterised in that：Institute State and the second inlet is provided with bottom end cover, the second liquid outlet is provided with the upper end cover.
- The ultralow temperature integrated type threephase asynchronous of liquid 3. a kind of LNG according to claim 2 dives, it is characterised in that：Institute State and multiple liquid-through holes vertically be provided with stator core yoke portion, and the liquid-through hole be distributed in it is same centered on rotating shaft On circumference.
- The ultralow temperature integrated type threephase asynchronous of liquid 4. a kind of LNG according to claim 3 dives, it is characterised in that：Institute State a diameter of 20mm-35mm of liquid-through hole.
- The ultralow temperature integrated type threephase asynchronous of liquid 5. a kind of LNG according to claim 4 dives, it is characterised in that：Institute State the air gap channel being provided between stator core and rotor core vertically.
- 6. according to a kind of ultralow temperature integrated type threephase asynchronous of any latent liquid of described LNG of claim 1-5, its feature exists In：The top of the stator core is fixedly installed the block for preventing that stator coil from gliding.
- The ultralow temperature integrated type threephase asynchronous of liquid 7. a kind of LNG according to claim 6 dives, it is characterised in that：Institute State block and fixed with electric wire with stator coil and is intertwined.
- The ultralow temperature integrated type threephase asynchronous of liquid 8. a kind of LNG according to claim 1 dives, it is characterised in that：Institute It is cryogenic bearing to state clutch shaft bearing and second bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925620.5U CN207082992U (en) | 2017-07-28 | 2017-07-28 | A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925620.5U CN207082992U (en) | 2017-07-28 | 2017-07-28 | A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082992U true CN207082992U (en) | 2018-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720925620.5U Active CN207082992U (en) | 2017-07-28 | 2017-07-28 | A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG |
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| Country | Link |
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| CN (1) | CN207082992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359762A (en) * | 2017-07-28 | 2017-11-17 | 卧龙电气集团股份有限公司 | A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG |
| CN108757493A (en) * | 2018-06-25 | 2018-11-06 | 杭州新亚低温科技有限公司 | A kind of multiaction motor cooling and lubricating system for the distribution of commodities of centrifugal pump |
-
2017
- 2017-07-28 CN CN201720925620.5U patent/CN207082992U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359762A (en) * | 2017-07-28 | 2017-11-17 | 卧龙电气集团股份有限公司 | A kind of ultralow temperature integrated type threephase asynchronous of the latent liquid of LNG |
| CN108757493A (en) * | 2018-06-25 | 2018-11-06 | 杭州新亚低温科技有限公司 | A kind of multiaction motor cooling and lubricating system for the distribution of commodities of centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 312300 Economic Development Zone, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Country or region after: China Patentee after: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP Co.,Ltd. Address before: Shangyu District Economic Development Zone, Shaoxing City, Zhejiang Province Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. Country or region before: China Patentee before: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address |