CN213717730U - Doubly-fed generator motor shell assembly and doubly-fed generator - Google Patents

Abstract

The utility model provides a double-fed generator housing assembly and double-fed generator relates to wind power generation technical field, piles up the unable normal use problem design that exists with the environment humidity for solving double-fed generator in the use because of the carbon dust. The double-fed generator shell assembly comprises an air cooler shell and a slip ring chamber, wherein the air cooler shell is provided with an air inlet end and an air outlet end, the air outlet end is provided with a baffle, an air outlet is formed between the baffle and the edge of the air cooler shell, the slip ring chamber is arranged close to the air outlet end, the baffle is provided with an air exhaust hole, and the slip ring chamber is not communicated with the air cooler shell; the slip ring chamber is provided with an air guide opening, the slip ring chamber is provided with an air blowing component, and the air blowing component is configured to blow carbon powder in the slip ring chamber to the air guide opening. The utility model provides a double-fed generator casing subassembly and double-fed generator have improved the double-fed generator that exists effectively among the prior art and have piled up the unable normal use condition that exists with the environment humidity because of the carbon dust in the use.

Description

Doubly-fed generator motor shell assembly and doubly-fed generator

Technical Field

The utility model relates to a wind power generation technical field particularly, relates to a double-fed generator casing subassembly and double-fed generator.

Background

Generally, the double-fed generator includes air cooler and slip ring room, wherein, the air cooler casing has air inlet end and air-out end, the slip ring room is close to and the two intercommunication with the air-out end of air cooler casing, meanwhile, the air-out end of air cooler casing still is provided with the baffle, form the air outlet between the edge of this baffle and air cooler casing, make cold air can get into the air cooler casing through the air inlet end on the one hand, and further get into in the slip ring room, with the indoor carbon powder that exists of slip ring blow away, on the other hand, can also discharge through the air outlet that forms between the two of baffle and air cooler casing, take away the heat that generator part produced through the air outlet, realize the cooling to generator part.

However, in rainy season, because air humidity is too big, the indoor comdenstion water of sliding ring gathers, and the liquid water that condensate water or condensation formed combines carbon dust, the dust on sliding ring surface, will form the electrically conductive passageway, destroys electrical insulation, makes the region that originally does not electrically conduct become the electrically conductive region, and the three-phase switches on each other in the sliding ring system of normal operating for the carbon brush burns and glues on the carbon brush support, thereby influences double-fed generator's normal use, leads to the double-fed generator to damage even.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a double-fed generator casing subassembly to solve double-fed generator and pile up the technical problem who exists with the environment is moist unable normal use because of the carbon dust in the use.

The utility model provides a double-fed generator casing subassembly, including air cooler casing and slip ring room, the air cooler casing has air inlet end and air-out end, the air-out end is provided with the baffle, form the air outlet between the baffle and the edge of air cooler casing, the slip ring room is close to the air-out end sets up, the baffle has seted up the exhaust hole, the slip ring room with the air cooler casing does not communicate; the slip ring chamber is provided with an air guide opening, the slip ring chamber is provided with a blowing component, and the blowing component is configured to blow carbon powder in the slip ring chamber to the air guide opening.

Further, the area of the exhaust hole is not less than 1/2 of the area of the baffle.

Further, the number of the exhaust holes is one.

Furthermore, the exhaust hole is arranged on the edge of the baffle.

Furthermore, the exhaust hole is a rectangular hole.

Further, a blocking piece is arranged between the sliding ring chamber and the air cooler shell and is configured to block communication between the sliding ring chamber and the air cooler shell.

Further, the plugging piece is a three-proofing cloth.

Further, the blowing part includes a centrifugal fan installed outside the slip ring chamber.

Furthermore, the air blowing port and the air guide port of the air blowing component are arranged at intervals along the circumferential direction of the slip ring.

The utility model discloses beneficial effect that double-fed generator casing subassembly brought is:

the double-fed generator shell assembly comprises an air cooler shell with an air inlet end and an air outlet end, and a slip ring chamber, wherein the slip ring chamber is adjacent to the air outlet end and is not communicated with the inner cavity of the air cooler shell; the slip ring chamber is provided with a blowing component for blowing the carbon powder in the slip ring chamber to the air guide port.

This double-fed generator casing subassembly is applied to behind the double-fed generator, when the double-fed generator during operation, slip ring room is independent mutually with the air cooler, the part of blowing starts, with the indoor carbon powder that exists of slip ring, dust blows the wind guide inlet, and then discharge to the external world by the wind guide inlet, meanwhile, blow the power of part down, the slip ring is indoor will keep at relative dry state, prevent because of the comdenstion water with the surperficial carbon powder of slip ring, the dust combines in order to form electrically conductive channel, thereby the normal use of double-fed generator has been guaranteed. And, through set up the hole of airing exhaust on the baffle, still make the amount of wind of air cooler casing air-out end increase for the heat that the generator part produced can be taken away rapidly, has improved the cooling efficiency of air cooler.

This double-fed generator housing assembly is independent through with slip ring room and air cooler casing, utilizes the part of blowing to carry out the drying and blow away the indoor carbon dust of slip ring, dust to the slip ring room, and amount of wind and wind pressure are great, have guaranteed the reliability that slip ring room is dry and carbon dust, dust are blown away to the unable normal use's that exists because of the carbon dust piles up and the environment is moist the situation of having improved the double-fed generator that exists among the prior art effectively in the use. In addition, the exhaust holes are formed in the baffle, so that heat generated by the generator part in the working process can be rapidly taken away, and the cooling efficiency of the air cooler is greatly increased.

A second object of the present invention is to provide a double-fed generator, which solves the technical problem of the abnormal use of the double-fed generator in the using process due to the accumulation of carbon powder and the moisture in the environment.

The utility model provides a double-fed generator, including above-mentioned double-fed generator casing subassembly.

The utility model discloses beneficial effect that double-fed generator brought is:

by providing the above-mentioned double-fed generator housing assembly in the double-fed generator, accordingly, the double-fed generator has all the advantages of the above-mentioned double-fed generator housing assembly, which is not described in detail herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a doubly-fed generator according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an air outlet end of an air cooler housing of a doubly-fed generator housing assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another form of an air outlet end of an air cooler housing of a doubly-fed generator housing assembly according to an embodiment of the present invention;

fig. 4 is a schematic partial structural diagram of a doubly-fed generator according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a slip ring chamber of a doubly-fed generator according to an embodiment of the present invention.

Description of reference numerals:

100-air cooler housing; 200-slip ring chamber; 300-a blowing part;

110-air inlet end; 120-air outlet end;

121-a baffle; 122-air outlet; 123-air exhaust holes;

210-a wind guide port; 230-an air duct; 240-slip ring.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a doubly-fed generator provided in this embodiment, fig. 2 is a schematic structural diagram of an air outlet end 120 of an air cooler housing 100 of a doubly-fed generator housing assembly provided in this embodiment, and fig. 3 is a schematic structural diagram of another form of the air outlet end 120 of the air cooler housing 100 of the doubly-fed generator housing assembly provided in this embodiment. As shown in fig. 1 to 3, the present embodiment provides a doubly-fed generator housing assembly, which includes an air cooler housing 100 and a slip ring chamber 200, wherein the air cooler housing 100 has an air inlet end 110 and an air outlet end 120, the air outlet end 120 is provided with a baffle 121, an air outlet 122 is formed between the baffle 121 and an edge of the air cooler housing 100, and the slip ring chamber 200 is disposed adjacent to the air outlet end 120.

Fig. 4 is a schematic partial structure diagram of the doubly-fed generator provided in this embodiment, and fig. 5 is a schematic structural diagram of a slip ring chamber 200 of the doubly-fed generator provided in this embodiment. With reference to fig. 2 and fig. 3 and fig. 4 and fig. 5, in particular, the baffle 121 is provided with an air outlet 123, and the slip ring chamber 200 is not communicated with the air cooler housing 100; the slip ring chamber 200 is opened with an air guide opening 210, and the slip ring chamber 200 is provided with a blowing part 300, wherein the blowing part 300 is configured to blow carbon powder in the slip ring chamber 200 to the air guide opening 210.

This double-fed generator housing assembly is applied to behind the double-fed generator, when the double-fed generator during operation, slip ring room 200 is independent mutually with the air cooler, the part 300 of blowing starts, the carbon dust that exists in the slip ring room 200, dust blows to wind guide opening 210, and then discharge to the external world by wind guide opening 210, meanwhile, blow under the effect of the power of blowing of part 300, will keep in the slip ring room 200 at relative dry state, prevent because of the carbon dust on comdenstion water and sliding ring 240 surfaces, the dust combines in order to form electrically conductive channel, thereby the normal use of double-fed generator has been guaranteed. Moreover, the air outlet holes 123 are formed in the baffle 121, so that the air quantity of the air outlet end 120 of the air cooler shell 100 is increased, heat generated by a generator component can be taken away quickly, and the cooling efficiency of the air cooler is improved.

This double-fed generator housing assembly is independent through with slip ring room 200 and air cooler casing 100 mutually, utilizes the part 300 of blowing to carry out the drying and blow away carbon dust, the dust in the slip ring room 200 to slip ring room 200, and amount of wind and wind pressure are great, have guaranteed the reliability that slip ring room 200 is dry and carbon dust, dust are blown away to the situation of unable normal use that exists because of the carbon dust piles up and the environment is moist in the use of the double-fed generator who exists among the prior art has been improved effectively. In addition, the exhaust holes 123 are formed in the baffle 121, so that heat generated by the generator component in the working process can be rapidly taken away, and the cooling efficiency of the air cooler is greatly improved.

Referring to fig. 2 and fig. 3, in the present embodiment, the area of the air discharging hole 123 is not smaller than 1/2 of the area of the baffle 121.

So set up for most regional homoenergetic of baffle 121 can be used for the air-out, has increased the air output of air cooler casing 100 effectively, makes the cooling air who participates in the heat transfer can in time discharge, thereby makes external cold wind can mend air cooler casing 100 rapidly, continues to participate in the heat transfer, has guaranteed the cooling efficiency of air cooler.

Referring to fig. 2 and fig. 3, in the present embodiment, the number of the exhaust holes 123 disposed on the baffle 121 is one.

So set up, not only the operating personnel of being convenient for is under construction, moreover, can also simplify the trompil flow of baffle 121 to reduce operating personnel's intensity of labour.

Referring to fig. 3, in the present embodiment, the air outlet 123 is disposed at the edge of the baffle 121. That is, the air outlet opening 123 intersects with the air outlet opening 122, and the air outlet opening 123 and the air outlet opening 122 share the same side. So set up, be convenient for exhaust hole 123's processing.

Specifically, in the present embodiment, the air discharge hole 123 may be obtained by electrically grinding the baffle 121.

Referring to fig. 2 and fig. 3, in the present embodiment, the air outlet 123 is a rectangular hole.

Set up the form of exhaust hole 123 into the rectangular hole, on the one hand, be convenient for operating personnel to process baffle 121, on the other hand, can also increase the air output of exhaust hole 123 as far as possible to improve air cooler's cooling efficiency.

It should be noted that, in the present embodiment, the air outlet 123 may be in the form of the above-mentioned rectangular hole, but is not limited to this, and other shapes may also be adopted, such as: a circular hole, an elliptical hole, a triangular hole, or the like, as long as the cooling air can be discharged through the air discharge hole 123.

In other embodiments, the number of the exhaust holes 123 may also be multiple, and the multiple exhaust holes 123 are distributed on the baffle 121. So set up, when guaranteeing baffle 121 air output, can also strengthen baffle 121's structural strength.

Specifically, when the number of the exhaust holes 123 is plural, the plural exhaust holes 123 may be arranged in a rectangular array. So set up, can guarantee the air-out homogeneity of each position department of baffle 121 to a certain extent to guarantee the stability in wind field.

It should be noted that, when the number of the exhaust holes 123 is plural, the plural exhaust holes 123 may be arranged in the rectangular array, but not limited to this, and other arrangements may also be adopted, such as: the plurality of air exhaust holes 123 are arranged in a circular array, and the air exhaust uniformity of each position of the baffle 121 can be ensured to a certain extent by the arrangement form of the plurality of air exhaust holes 123.

In this embodiment, a blocking member (not shown) is disposed between the slip ring chamber 200 and the air cooler housing 100, wherein the blocking member is configured to block the communication between the slip ring chamber 200 and the air cooler housing 100.

By arranging the plugging piece between the slip ring chamber 200 and the air cooler shell 100, the isolation between the slip ring chamber 200 and the air cooler shell 100 is effectively realized, and the mutual independence between the slip ring chamber 200 and the air cooler shell 100 is ensured.

Referring to fig. 4 and 5, the slip ring chamber 200 is provided with an air duct 230, and in the solution provided by the prior art, the slip ring chamber 200 is communicated with the air cooler casing 100 through the air duct 230, so that the cold air entering the air cooler casing 100 from the air inlet end 110 can enter the slip ring chamber 200 through the air duct 230 to blow away the carbon powder existing in the slip ring chamber 200. In this embodiment, a blocking member may be disposed in the air guide duct 230 to block the communication between the slip ring chamber 200 and the air cooler housing 100.

Preferably, the blocking piece is a three-proof cloth. The three-proof cloth is PVC (Polyvinyl chloride) coated glass fiber cloth, and specifically, the three-proof cloth is made by coating PVC, PTFE (polytetrafluoroethylene), flame-retardant silica gel and other refractory materials on the surface of refractory fiber, so that the cloth has the functions of fire prevention, water prevention and mildew prevention.

Through choosing three proofings cloth as the shutoff piece, on the one hand, can realize the effective separation between slip ring room 200 and the air cooler casing 100, guarantee the mutual independence of slip ring room 200 and air cooler casing 100 the two, on the other hand, can also make the shutoff piece have the fire prevention, waterproof and mould proof function, in order to reduce the adverse effect that external impurity caused the shutoff piece, thereby reduce the infiltration of external moisture to slip ring room 200, guarantee the drying of slip ring room 200 internal environment, and then guarantee the normal work of sliding ring 240, and prolong sliding ring 240's working life.

Preferably, in the present embodiment, the blowing part 300 includes a centrifugal fan, and in particular, the centrifugal fan is installed outside the slip ring chamber 200.

The arrangement form of the blowing component 300 is reliable in air volume and air pressure, so that the blowing reliability of the blowing component 300 is guaranteed, on one hand, the inside of the slip ring chamber 200 can be always kept in a relatively dry state, on the other hand, carbon powder existing in the slip ring chamber 200 can be blown away, and the carbon powder is prevented from being attached to the slip ring 240 and being burnt and adhered to the carbon brush support.

Referring to fig. 4, in the present embodiment, the air outlet of the air blowing component 300 and the air guiding outlet 210 are disposed at an interval along the circumferential direction of the slip ring 240.

With this arrangement, the moving path of the airflow blown out from the air outlet of the air blowing component 300 in the slip ring chamber 200 can be optimized, so as to ensure that the carbon powder can be discharged from the air guiding opening 210 in time.

In addition, the embodiment also provides a doubly-fed generator, and the doubly-fed generator comprises the doubly-fed generator housing assembly.

By providing the above-mentioned double-fed generator housing assembly in the double-fed generator, accordingly, the double-fed generator has all the advantages of the above-mentioned double-fed generator housing assembly, which is not described in detail herein.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the above embodiments, the descriptions of the orientations such as "inner" and "outer" are based on the drawings.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A double-fed generator shell assembly comprises an air cooler shell (100) and a slip ring chamber (200), wherein the air cooler shell (100) is provided with an air inlet end (110) and an air outlet end (120), the air outlet end (120) is provided with a baffle (121), an air outlet (122) is formed between the baffle (121) and the edge of the air cooler shell (100), and the slip ring chamber (200) is arranged close to the air outlet end (120), and is characterized in that the baffle (121) is provided with an air exhaust hole (123), and the slip ring chamber (200) is not communicated with the air cooler shell (100); the air guide opening (210) is formed in the slip ring chamber (200), the air blowing component (300) is arranged on the slip ring chamber (200), and the air blowing component (300) is configured to blow carbon powder in the slip ring chamber (200) to the air guide opening (210).

2. The doubly-fed generator housing assembly of claim 1, wherein an area of said air discharge holes (123) is not less than 1/2 of an area of said baffle (121).

3. The doubly-fed generator housing assembly of claim 2, wherein the number of air discharge apertures (123) is one.

4. The doubly-fed generator housing assembly of claim 3, wherein said air exit holes (123) open at the edge of said baffle (121).

5. The doubly-fed generator housing assembly of claim 3, wherein said vent holes (123) are rectangular holes.

6. The doubly-fed generator housing assembly of any of claims 1-5, wherein a block is provided between said slip ring chamber (200) and said air cooler housing (100), said block being configured to block communication between said slip ring chamber (200) and said air cooler housing (100).

7. The doubly fed generator housing assembly of claim 6, wherein said blocking member is a three-proof cloth.

8. The doubly fed generator housing assembly of any of claims 1-5, wherein said blowing means (300) comprises a centrifugal fan mounted outside said slip-ring chamber (200).

9. The doubly-fed generator housing assembly of any of claims 1 to 5, wherein the blowing openings of the blowing part (300) and the wind guiding openings (210) are arranged at a distance along a circumferential direction of the slip ring (240).

10. A doubly fed generator comprising the doubly fed generator housing assembly of any of claims 1 to 9.

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