CN202121449U - Wind driven generator stator evaporation cooling glass fiber reinforced plastic isolation sleeve and sealing apparatus thereof - Google Patents
Wind driven generator stator evaporation cooling glass fiber reinforced plastic isolation sleeve and sealing apparatus thereof Download PDFInfo
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- CN202121449U CN202121449U CN2011202221176U CN201120222117U CN202121449U CN 202121449 U CN202121449 U CN 202121449U CN 2011202221176 U CN2011202221176 U CN 2011202221176U CN 201120222117 U CN201120222117 U CN 201120222117U CN 202121449 U CN202121449 U CN 202121449U
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- distance sleeve
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- sealing
- stator
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Abstract
The utility model discloses a wind driven generator stator evaporation cooling glass fiber reinforcement plastic isolation sleeve and a sealing apparatus, comprising a glass fiber reinforcement plastic isolation sleeve, sealing end caps, sealing press rings, sealing rubber rings and sealing gaskets, wherein the sealing end caps, the sealing press rings, the sealing rubber rings and the sealing gaskets are respectively located at both ends of the glass fiber reinforcement plastic isolation sleeve, and the glass fiber reinforcement plastic isolation sleeve, the sealing end caps, the sealing press rings, the sealing rubber rings and the sealing gaskets together with a generator stator housing and a condenser form a stator evaporation cooling sealing cavity. In the utility model the generator evaporation cooling system is improved and perfected, thereby reducing the weight of the isolation sealing sleeve, generating no eddy current loss on the isolation sleeve, and increasing the efficiency of the generator. The glass fiber reinforcement plastic isolation sleeve can be installed in the manner of direct installation and bonding installation, and the application of bonding installation enables the flexibility of the glass fiber reinforced plastic isolation sleeve to be reduced, thereby greatly increasing the rigidity of the isolation sleeve and increasing the reliability of safety.
Description
Technical field
The utility model relates to the evaporative cooling system of aerogenerator stator, specifically about the distance sleeve and the sealing device thereof of this evaporative cooling system.
Background technology
In the prior art, the type of cooling that the stator core of wind-driven generator, winding coil and fixed part thereof adopt is two kinds of free cold-peace liquid cooling, and these two kinds of types of cooling respectively have characteristics.
Air cooling is simple in structure, and required optional feature is less, is easy to safeguard, uses the most extensive.But the thermal transmission coefficient of air is lower, and the cooling duct is difficult for arranging that heat spot possibly appear in the unshakable in one's determination and winding temperature skewness of the stator and rotor of motor, damages winding insulation, reduces useful life; In addition, power of motor density is little, and motor size is big, and stock utilization is low, and weight, volume are excessive, all is difficulty very for the transportation of motor and lifting.
The medium that the liquid cooling mode adopts mainly is a water, and specific heat of water is bigger a lot of times than air, and cooling effectiveness is higher, and the winding coil current density is big, and copper consumption is less, and motor size is little, and operating temperature is low.But wind-driven generator is operated on the high tower of open-air overhead tens meters or even up to a hundred meters, the water difficulty, and also the minimum temperature that will stand winter is below-40 ℃, and the antifreezing agent that needs to add has stronger corrosivity.In addition, the water-cooling system long-time running possibly cause and leak and cause the fault of motor stator short circuit, and the security reliability of motor receives serious challenge.
Application number is that 200710177555.3 Chinese utility model patent provides a kind of stator structure of inner cooling type self-circulation vaporization cooling wind power generator; Adopt the evaporative cooling medium of high insulation; Eliminated the possibility that causes the motor stator short circuit because of dielectric leakage; Its security reliability is further enhanced, but this kind electric machine structure complicacy, the manufacturing process performance difficulty.
Along with the development of wind generating technology, the single-machine capacity of wind-driven generator constantly increases, and for MW class wind turbine, requirement has characteristics such as volume is little, and power density is big, and is in light weight, safe and reliable to operation.Application number is that 200510086794.9 Chinese utility model patent discloses a kind of wind-driven generator evaporative cooling stator, and evaporative cooling medium is poured in the motor stator cavity, and evaporative cooling medium is realized the airtight self-loopa of no pump in evaporative cooling system; Utilize the principle of the gasification latent heat heat absorption of liquid medium to come cooling motor, the temperature rise level is low, uniformity of temperature profile; Electric loading is high; The motor volume of equal capacity is little, in light weight, and stock utilization is high; Having remedied the deficiency of aforementioned schemes, is the feasible type of cooling of a kind of advanced person.The key technology of this kind type of cooling is the making and the sealing thereof of stator cavity distance sleeve; A kind of non-magnetic stainless steel distance sleeve that this patent provides; Though can solve sealing problem, can on the distance sleeve of metal, produce a large amount of eddy current, to be unlikely to temperature too high although the heat that its eddy current loss produced can be taken away through evaporative cooling medium; But increased the loss of motor greatly, reduced electric efficiency.
The utility model content
Shortcoming to prior art; The applicant improves through research, and a kind of aerogenerator stator evaporative cooling system fiberglass distance sleeve and sealing device thereof are provided, and can reduce the weight of distance sleeve; And can on distance sleeve, not produce eddy current loss, improve electric efficiency.
The technical scheme of the utility model is following:
A kind of aerogenerator stator evaporative cooling fiberglass distance sleeve and sealing device thereof comprise condenser, stator winding and iron core, rotor, stator cage, end cap O type O-ring seal, distance sleeve O type O-ring seal, distance sleeve seal washer, end cover, fiberglass distance sleeve and seal joint; Said condenser places the top of stator cage; Condenser and stator cage are tightly connected; The stator cage both ends of the surface are connected with end cover, adopt end cap O type O-ring seal (5) to realize end face seal therebetween, and end cover contacts with the fiberglass distance sleeve; The inner headed face at fiberglass distance sleeve two ends is supported by seal joint; Be provided with seal groove between end cover and the fiberglass distance sleeve, place distance sleeve O type O-ring seal and distance sleeve seal washer in the seal groove, through the seal joint axial compression; O-ring seal distortion of distance sleeve O type and end cover and the contact seal of fiberglass distance sleeve, the fiberglass distance sleeve is in the air gap between motor stator and the rotor.
Its further technical scheme is: the differing in size of said fiberglass distance sleeve two ends, and the centre is thinner, and the sealing surface at two ends is thicker, and the thin and thick gradual change.
And its further technical scheme is: said fiberglass distance sleeve adopts glass fiber reinforced plastics composite material, by epoxy resin with glass fiber is Wrapping formed processes.
And its further technical scheme is: said fiberglass distance sleeve adopts direct mounting means, between end cover and stator cage, end cover and seal joint, seam is set, and cooperates through seam.
And its further technical scheme is: said fiberglass distance sleeve adopts bonding mounting means, and the fiberglass distance sleeve is bonded on the stator inner headed face.
And its further technical scheme is: said fiberglass distance sleeve adopts multiple-sealed, in seal groove, places multiple tracks distance sleeve O type O-ring seal, between the per pass distance sleeve seal washer seal washer is set.
And its further technical scheme is: the material of said end cap O type O-ring seal, distance sleeve O type O-ring seal can be selected for use and gather tetrafluoro or acrylonitrile-butadiene rubber.
The useful technique effect of the utility model is:
The utility model aerogenerator stator evaporative cooling system is for the ease of the dismounting of motor, and fiberglass distance sleeve and sealing device thereof are provided with the sealing of two places, and a place is the sealing between end cover and the stator cage; Another place is the sealing between end cover and the fiberglass distance sleeve.With the stator cage is benchmark, and end cover cooperates with the stator cage seam, and end cover cooperates with the seal joint seam, and seal joint supports with the fiberglass distance sleeve and cooperates.Cooperate the location to guarantee the concentricity that the fiberglass distance sleeve is installed through above three places.
The glass fiber reinforced plastics composite material that the utility model aerogenerator stator evaporative cooling system distance sleeve adopts is by epoxy resin with glass fiber is Wrapping formed processes.Thinner in the middle of this distance sleeve, the sealing surface at two ends is thicker, the thin and thick gradual change, and it is concentrated to eliminate stress.This distance sleeve one end is less, and the other end is bigger, so that the installation of distance sleeve and rotor.
The glass fiber reinforced plastics composite material of the utility model aerogenerator stator evaporative cooling system distance sleeve has lower density; Be about stainless 1/4; And specific strength is higher, is therefore satisfying under the mechanical strength of using, and adopts the fiberglass distance sleeve lighter than magnetism-free stainless steel distance sleeve weight.Compare with the distance sleeve that adopts the non-magnetic rustproof steel, under the mechanical performance prerequisite of the use that guarantees distance sleeve, adopt the weight of fiberglass distance sleeve can alleviate 1/2 ~ 3/4.
The glass fiber reinforced plastics composite material of the utility model aerogenerator stator evaporative cooling system distance sleeve has high insulation property, has eliminated employing metal material distance sleeve and has produced eddy current loss, has improved electric efficiency.And compatible with the evaporative cooling medium that motor adopts, so-called compatible be exactly that two or more materials can long-term co-existence under the residing operating mode of motor and swelling or corrosion phenomenon do not take place.
The utility model aerogenerator stator evaporative cooling system fiberglass distance sleeve and sealing device thereof; Adopt the bonding way of stator and fiberglass distance sleeve; Reduce the amount of deflection of fiberglass distance sleeve, improved the rigidity of distance sleeve greatly, improved security reliability.In addition; When design of electrical motor, thickness that can attenuate fiberglass distance sleeve, thus reduce the air gap between the motor stator and rotor; Under the situation of same capacity electrical machinery; Can further reduce the weight and volume of motor, reduce motor and use material, significant to improving motor performance with reduction motor Financial cost.
The utility model aerogenerator stator evaporative cooling system fiberglass distance sleeve and sealing device thereof go for the isolating seal of the evaporative cooling aerogenerator stator of different capacitance grade.When design of electrical motor, can adopt thickness, version and the mounting means thereof of suitable glasses steel distance sleeve according to the capacity of wind-driven generator.
Description of drawings
Fig. 1 is the structural representation and the partial enlarged drawing thereof of the utility model.Among the figure: 1, condenser; 2, stator winding and iron core; 3, rotor; 4, stator cage; 5, end cap O type O-ring seal; 6, distance sleeve O type O-ring seal; 7, distance sleeve seal washer; 10, end cover; 20, fiberglass distance sleeve; 30, seal joint.
Fig. 2 is the schematic cross-section of end cover, among the figure: 101, end cover and end cap O type O-ring seal contact site; 102, end cover and casing seam concentric locating position; 103, end cover and seal joint seam concentric locating position; 104, end cover and fiberglass distance sleeve sealing position.
Fig. 3 is the schematic cross-section of seal joint, among the figure: 301, seal joint and end cover seam concentric locating position; 302, sealing is damaged by pressure and fiberglass distance sleeve O type O-ring seal contact site; 303, fiberglass distance sleeve end inserting position; 304, seal joint distance sleeve internal diameter support zone.
Fig. 4 is the axial arrangement sketch map of fiberglass distance sleeve, among the figure: 201, position, the big end of fiberglass distance sleeve; 202, fiberglass distance sleeve thin and thick gradual change position; 203, fiberglass distance sleeve and motor stator inner headed face contact site; 204, fiberglass distance sleeve small end intensity is strengthened the position; 205, fiberglass distance sleeve small end position.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
The confined space that the aerogenerator stator evaporative cooling is made up of motor condenser, stator cage and fiberglass distance sleeve and sealing device thereof, in heat exchanging process, coolant does not have pump seal and closes self-loopa in this space.
As shown in Figure 1, condenser 1 places the top of motor, and condenser 1 is tightly connected with the stator cage 4 of its below, and stator cage 4 is connected with end cover 10, adopts the 5 realization end face seals of end cap O type O-ring seal therebetween.See the partial enlarged drawing of Fig. 1; End cover 10 contacts with fiberglass distance sleeve 20; The inner headed face at fiberglass distance sleeve 20 two ends is supported by seal joint 30; Be provided with seal groove between end cover 10 and the fiberglass distance sleeve 20, place multiple tracks distance sleeve O type O-ring seal 6 and distance sleeve seal washer 7 in the seal groove, through seal joint 30 axial compression; 6 distortion and end cover 10 and 20 contact seals of fiberglass distance sleeve of the close O type of distance sleeve sealing circle, fiberglass distance sleeve 20 is in the air gap between motor stator 2 and the rotor 3.
For the ease of the dismounting of motor, fiberglass distance sleeve and sealing device thereof are provided with the sealing of two places, and a place is the sealing between end cover 10 and the stator cage 4; Another place is the sealing between end cover 10 and the fiberglass distance sleeve 20.
The installation of fiberglass distance sleeve cooperates the location to guarantee concentricity with three places; Stator cage 4 is a benchmark; End cover 10 cooperates with stator cage 4 seams, and end cover 10 cooperates with seal joint 30 seams, and seal joint 30 supports with fiberglass distance sleeve 20 and cooperates.
Fig. 2 is the schematic cross-section of end cover 10.End cover 10 is flange arrangements; End cap O type O-ring seal 5 is realized sealing through 101 position axial compression distortion of end cover 10 with stator cage 4; 102 positions of end cover 10 cooperate with stator cage 4 seams; Guarantee the concentricity that end cover 10 is installed, the 103rd, end cover 10 cooperates the position of location with seal joint 30 seams, and the 104th, end cover 10 and fiberglass distance sleeve 20 are placed the position of multiple tracks distance sleeve O type O-ring seals 6 and distance sleeve seal washer 7.
Fig. 3 is the schematic cross-section of seal joint 30.301 of seal joint 30 cooperates with 103 seams of end cover 10; Guarantee the concentricity that seal joint 30 is installed; Distance sleeve O type O-ring seal 6 compresses distortion through 302 of seal joint 30, realizes the sealing between end cover 10 and the fiberglass distance sleeve 20, and fiberglass distance sleeve 20 places 303 positions of seal joint 30; 201 or 205 of 304 support glass steel distance sleeves 20 of seal joint 30 guarantee the concentricity that fiberglass distance sleeve 20 is installed.
Fig. 4 is the axial arrangement sketch map of fiberglass distance sleeve 20.The 201st, fiberglass distance sleeve 20 big ends, its internal diameter cooperates with 304 of seal joint 30, and 201 front end places 303 positions; 201 external diameters contact with distance sleeve O type O-ring seal 6; The 202nd, hold thickness and fiberglass distance sleeve 20 thin 203 gradual change, the installing space of assurance fiberglass distance sleeve 20 mechanical performances and rotor 3, the 203rd, the thin places in the middle of the fiberglass distance sleeve 20 of locating greatly; Contact with motor stator winding and unshakable in one's determination 2; The 204th, fiberglass distance sleeve 20 small end mechanical strengths are strengthened the position, and the 205th, the small end of fiberglass distance sleeve 20, its internal diameter cooperates with 304 of seal joint 30; 205 front end places 303 positions, and 205 external diameters contact with distance sleeve O type O-ring seal 6.
Fiberglass distance sleeve 20 has direct installation and bonding installation dual mode.The concentricity of two kinds of mounting means fiberglass distance sleeves 20 cooperates the location to guarantee by three places: with stator cage 4 is benchmark; End cover 10 cooperates with stator cage 4; End cover 10 cooperates with seal joint 30, and seal joint 30 supports with fiberglass distance sleeve 20 and cooperates.
Directly installing is between end cover 10 and stator cage 4, end cover 10 and seal joint 30, seam to be set, and cooperates through seam, guarantees the concentricity that fiberglass distance sleeve 20 is installed.The order of directly installing is: the two ends that earlier end cover 10 are installed in stator cage 4; Adopt 5 sealings of end cap O RunddichtringO therebetween; Again fiberglass distance sleeve 20 small ends 205 are inserted between motor stator winding and unshakable in one's determination 2; And be in place, place multiple tracks distance sleeve O type O-ring seal 6 and distance sleeve seal washer 7 at the end cover 10 and the sealing position 104 at fiberglass distance sleeve 20 two ends then, the seal joint 30 at two ends is installed; Last pressurize with stop leakage in the roof the air-tightness of assurance seal cavity.When the sealing of two places is installed,, need guarantee the deflection of O type O-ring seal or the moment of torsion of bolt according to designing requirement in order to guarantee sealing property.
Bonding installation is that fiberglass distance sleeve 20 is bonded on the stator inner headed face.Bonding installation not only can reduce the stress surface of fiberglass distance sleeve, simultaneously adhesive strength can be provided, and increases the rigidity of fiberglass distance sleeve.The order of bonding installation is: earlier end cover 10 is installed in advance the two ends of stator cage 4, at 203 and stator winding and 2 contact site brushing adhesives unshakable in one's determination of fiberglass distance sleeve 20, fiberglass distance sleeve 20 small ends 205 is inserted between motor stator winding and unshakable in one's determination 2 again; And be in place; The seal joint 30 at two ends is installed in advance, after adhesive is cured by the time, is removed preparatory mounted seal joint 30 and end cover 10; Load onto end cap O RunddichtringO 5 then; Load onto end cover 10, place multiple tracks distance sleeve O type O-ring seal 6 and distance sleeve seal washer 7 at the end cover 10 and the sealing position 104 at fiberglass distance sleeve 20 two ends again, the seal joint 30 at two ends is installed; Last pressurize with stop leakage in the roof the air-tightness of assurance seal cavity.When the sealing of two places is installed,, need guarantee the deflection of O type O-ring seal or the moment of torsion of bolt according to designing requirement in order to guarantee sealing property.
Above-described only is the preferred implementation of the utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite of spirit that does not break away from the utility model and design, all should think to be included within the protection range of the utility model.
Claims (7)
1. aerogenerator stator evaporative cooling fiberglass distance sleeve and sealing device thereof is characterized in that: comprise condenser (1), stator winding and iron core (2), rotor (3), stator cage (4), end cap O type O-ring seal (5), distance sleeve O type O-ring seal (6), distance sleeve seal washer (7), end cover (10), fiberglass distance sleeve (20) and seal joint (30); Said condenser (1) places the top of stator cage (4); Condenser (1) is tightly connected with stator cage (4); Stator cage (4) both ends of the surface are connected with end cover (10); Adopt end cap O type O-ring seal (5) to realize end face seal therebetween; End cover (10) contacts with fiberglass distance sleeve (20), and the inner headed face at fiberglass distance sleeve (20) two ends is supported by seal joint (30), is provided with seal groove between end cover (10) and the fiberglass distance sleeve (20); Place distance sleeve O type O-ring seal (6) and distance sleeve seal washer (7) in the seal groove; Through seal joint (30) axial compression, distance sleeve O type O-ring seal (6) distortion and end cover (10) and fiberglass distance sleeve (20) contact seal, fiberglass distance sleeve (20) is in the air gap between motor stator (2) and the rotor (3).
2. according to the said aerogenerator stator evaporative cooling of claim 1 fiberglass distance sleeve and sealing device thereof, it is characterized in that: the differing in size of said fiberglass distance sleeve (20) two ends, the centre is thinner, and the sealing surface at two ends is thicker, and the thin and thick gradual change.
3. according to claim 1 or 2 said aerogenerator stator evaporative cooling fiberglass distance sleeve and sealing devices thereof; It is characterized in that: said fiberglass distance sleeve (20) adopts glass fiber reinforced plastics composite material, by epoxy resin with glass fiber is Wrapping formed processes.
4. aerogenerator stator evaporative cooling fiberglass distance sleeve according to claim 1 and 2 and sealing device thereof; It is characterized in that: said fiberglass distance sleeve (20) adopts direct mounting means; Between end cover (10) and stator cage (4), end cover (10) and seal joint (30), seam is set, cooperates through seam.
5. aerogenerator stator evaporative cooling fiberglass distance sleeve according to claim 1 and 2 and sealing device thereof; It is characterized in that: said fiberglass distance sleeve (20) adopts bonding mounting means, and fiberglass distance sleeve (20) is bonded on the stator inner headed face.
6. aerogenerator stator evaporative cooling fiberglass distance sleeve according to claim 1 and sealing device thereof; It is characterized in that: said fiberglass distance sleeve (20) adopts multiple-sealed; In seal groove, place multiple tracks distance sleeve O type O-ring seal (6), between the per pass distance sleeve seal washer (7) seal washer is set.
7. aerogenerator stator evaporative cooling fiberglass distance sleeve according to claim 1 and sealing device thereof is characterized in that: the material of said end cap O type O-ring seal (5), distance sleeve O type O-ring seal (6) can be selected for use and gather tetrafluoro or acrylonitrile-butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202221176U CN202121449U (en) | 2011-06-28 | 2011-06-28 | Wind driven generator stator evaporation cooling glass fiber reinforced plastic isolation sleeve and sealing apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202221176U CN202121449U (en) | 2011-06-28 | 2011-06-28 | Wind driven generator stator evaporation cooling glass fiber reinforced plastic isolation sleeve and sealing apparatus thereof |
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| Publication Number | Publication Date |
|---|---|
| CN202121449U true CN202121449U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202221176U Expired - Lifetime CN202121449U (en) | 2011-06-28 | 2011-06-28 | Wind driven generator stator evaporation cooling glass fiber reinforced plastic isolation sleeve and sealing apparatus thereof |
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| Country | Link |
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| CN (1) | CN202121449U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223020A (en) * | 2011-06-28 | 2011-10-19 | 中科盛创（青岛）电气有限公司 | FRP (fiber-reinforced plastic) isolated sleeve for evaporating and cooling wind motor stator and sealing device thereof |
| CN106230143A (en) * | 2014-03-31 | 2016-12-14 | 北京建筑大学 | A kind of switched reluctance machines |
| CN111106683A (en) * | 2020-01-17 | 2020-05-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Compact liquid circulation cooling superconducting motor stator |
| CN114204723A (en) * | 2021-11-19 | 2022-03-18 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Liquid cooling air gap armature stator structure of high-temperature superconducting motor and assembly method |
-
2011
- 2011-06-28 CN CN2011202221176U patent/CN202121449U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223020A (en) * | 2011-06-28 | 2011-10-19 | 中科盛创（青岛）电气有限公司 | FRP (fiber-reinforced plastic) isolated sleeve for evaporating and cooling wind motor stator and sealing device thereof |
| CN102223020B (en) * | 2011-06-28 | 2012-11-21 | 中科盛创（青岛）电气有限公司 | FRP (fiber-reinforced plastic) isolated sleeve for evaporating and cooling wind motor stator and sealing device thereof |
| CN106230143A (en) * | 2014-03-31 | 2016-12-14 | 北京建筑大学 | A kind of switched reluctance machines |
| CN106230143B (en) * | 2014-03-31 | 2019-02-12 | 北京建筑大学 | A kind of switched reluctance machines |
| CN111106683A (en) * | 2020-01-17 | 2020-05-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Compact liquid circulation cooling superconducting motor stator |
| CN114204723A (en) * | 2021-11-19 | 2022-03-18 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Liquid cooling air gap armature stator structure of high-temperature superconducting motor and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120118 Effective date of abandoning: 20130306 |
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| RGAV | Abandon patent right to avoid regrant |