CN209896796U - Air cooling gas turbine generator structure - Google Patents
Air cooling gas turbine generator structure Download PDFInfo
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- CN209896796U CN209896796U CN201921000954.7U CN201921000954U CN209896796U CN 209896796 U CN209896796 U CN 209896796U CN 201921000954 U CN201921000954 U CN 201921000954U CN 209896796 U CN209896796 U CN 209896796U
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Abstract
The utility model provides an air cooling gas turbine generator structure, including the stator frame, be equipped with the rotor in the stator frame, the rotor passes stator frame and both ends and all is located the stator frame outside, the rotor both ends are installed on the stator frame through the bearing respectively, stator frame right side is equipped with the exciter, the exciter is connected with rotor one end, stator frame top surface left and right sides is equipped with the vertical air cooler of side respectively, be equipped with the water receiving tank between air cooler and the stator frame top surface, be equipped with the detection device that leaks in the water receiving tank, water receiving tank one side is equipped with the drain pipe, the drain pipe passes the inside and drain pipe lower extreme of stator frame and is located the stator frame. The utility model discloses structural design is ingenious, installs the air cooler in stator frame top, sets up two sets of side air coolers, can increase with hot-air's area of contact, has improved the cooling air and has carried out refrigerated wind path, is favorable to improving cooling effect and cooling efficiency, has still set up the processing apparatus that leaks.
Description
Technical Field
The utility model belongs to middle-size and small-size air cooling gas turbine generator field, specifically speaking are air cooling gas turbine generator structure.
Background
With the vigorous development of natural gas, solar energy and other clean energy power generation in China, the air-cooled steam turbine generator arranged in a single layer has larger and larger market demand, the air cooler is not arranged in the engine base, the generator arranged in a double layer at the bottom of the generator base cannot completely meet the market demand, and a generator with an air cooler arranged on the upper part of the stator casing needs to be developed.
All parts of whole generator constitute an organic whole, can the integral erection, do not need double-deck factory building construction, and the most difficult overhead air cooler generator is exactly to solve the generator water route, wind path structure, leak when any a set of air cooler of generator, can lead to the generator stator winding to be heated inhomogeneously, thereby it is inhomogeneous to make the rotor core be heated, such result is the most direct vibration that causes the generator, if the water that leaks out gets into the generator along with the wind, then probably lead to rotor ground connection, rotor ground connection two points during serious, direct harm influences the stator, the insulation of rotor, influence the safe operation of unit.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air cooling gas turbine generator structure for water route, wind path structure's problem when overhead air cooler uses among the solution prior art reaches the beneficial effect of solving the problem of leaking, ensuring unit safe operation.
The utility model discloses a following technical scheme realizes:
the utility model provides an air cooling gas turbine generator structure, including the stator frame, be equipped with the rotor in the stator frame, the rotor passes stator frame and both ends all are located the stator frame outside, the rotor both ends are installed on the stator frame through the bearing respectively, stator frame right side is equipped with the exciter, the exciter is connected with rotor one end, the stator frame top surface left and right sides is equipped with the air cooler of side-standing type respectively, be equipped with the water receiving tank between air cooler and the stator frame top surface, be equipped with the detection device that leaks in the water receiving tank, water receiving tank one side is equipped with the drain pipe, the drain pipe passes the inside and drain pipe lower extreme of stator.
According to the air-cooled gas turbine generator structure, the rotor winding adopts a concentric distributed winding, the coil is a hollow conductor made of silver-copper alloy through cold drawing, and the air outlets of the rotor coil are distributed in a V shape in the groove. When the cold air cools, the cold air flows through from the hole of rotor coil, directly cools off the rotor winding, and in addition, the air outlet of rotor coil is the V-arrangement distribution in the groove for coil amount of wind is even everywhere, and the cooling effect is good, has effectively avoided the formation of hot spot.
According to the air-cooled gas turbine generator structure, the axial flow fans are mounted at two ends of the rotor body, and the rotor is of a high-quality alloy steel integral forged piece structure. The rotor both ends all are equipped with axial fan, axial fan uses with corresponding air cooler cooperation, squeeze into cold air by rotor both ends department, cold air is along stator frame wind zone cooling stator core and stator winding, the wind path is that cold wind blows into the rotor between center ring and the pivot in the rotor conductor, cool off inside back of rotor and stator frame, hot-blast both sides air cooler of blowing into from the interior top surface of stator frame at last, form airtight circulation after the cooling, the cooling is thorough, improve cooling effect and cooling efficiency, the rotor adopts the whole forging structure of high-quality alloy steel, satisfy the user demand, long service life.
According to the air-cooling gas turbine generator structure, the fan blades of the axial flow fan are formed by die forging of silicon-aluminum alloy, the left end and the right end of the rotating shaft of the rotor are respectively sleeved with the hub, and the fan blades of the axial flow fan are installed on the hub through bolts. The axial flow fan has the characteristics of low pressure head, large flow, high efficiency and the like.
According to the air-cooling gas turbine generator structure, the left side and the right side of the upper part of the stator base are provided with the supplementary air filters. The low-pressure air area of the generator is provided with the supplementary air filter, so that when the loss of the gas is insufficient, new gas can be supplemented in time, and the cooling can be carried out smoothly.
According to the air-cooling gas turbine generator structure, the left side and the right side of the front of the lower part of the stator base are respectively provided with the manhole. Manholes are designed to facilitate the entry and exit of personnel into and out of the equipment for welding, installation, maintenance and safety inspection.
According to the air-cooling gas turbine generator structure, the outlet box is arranged in front of the stator base. The position design of outlet box adopts the mode of side being qualified for the next round of competitions, can avoid going out the line from the top and be qualified for the next round of competitions down, avoids the unnecessary loss of being qualified for the next round of competitions, improves life.
According to the air-cooled gas turbine generator structure, the stator base adopts an upper and lower split structure, and the shell wall of the stator base and the iron core form a plurality of wind zones. The structure of the stator base enables a plurality of air zones to be formed inside the stator base, cold air can be guided to flow, and the stator base is axially divided into iron core sections with different widths according to different air zones, so that the temperature distribution on the whole iron core is uniform.
According to the air-cooled gas turbine generator structure, the end ports of the drain pipes are hinged with the sealing covers. When not using the drain pipe, the closing cap can play isolated effect, avoids external debris to get into the port department of drain pipe, prevents to influence the drainage function of drain pipe.
The beneficial effects of the utility model reside in that, the utility model discloses structural design is ingenious, install the air cooler in stator frame top, set up two sets of side air coolers, can increase the area of contact with the hot-air, it carries out refrigerated wind path to have improved the cooling air, be favorable to improving cooling effect and cooling efficiency, the processing apparatus that leaks has still been set up, can carry out the drainage to the water that spills, realize leaking and the isolated effect between each part of this device, avoid the motor electronic winding that the air cooler leaked and arouse, the inhomogeneous problem of rotor core being heated, prevent to leak and arouse the stator in getting into the stator frame, the insulation of rotor, the condition of leaking of effective processing air cooler, ensure the safe operation of unit, reduce this device because of the fault probability that the hourglass water causes, reduce the cost of overhaul, satisfy the market demand, be worth using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is a right side view of FIG. 1; FIG. 3 is a schematic view of a rotor winding configuration; FIG. 4 is an enlarged view of a cross-sectional view taken along line A-A of FIG. 3; FIG. 5 is a schematic view of a rotor air passage; FIG. 6 is a partial schematic view of an axial fan; fig. 7 is an enlarged view of the view from direction B of fig. 2.
In the figure, a stator frame 1, a rotor 2, a bearing 3, an exciter 4, an air cooler 5, a water receiving tank 6, a drain pipe 7, an axial flow fan 8, a supplementary air filter 9, a manhole 10, an outlet box 11 and a sealing cover 12.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
The utility model provides an air cooling gas turbine generator structure, as shown in the figure, including stator frame 1, be equipped with rotor 2 in the stator frame 1, rotor 2 passes stator frame 1 and both ends all are located the stator frame 1 outside, install on stator frame 1 through bearing 3 respectively at 2 both ends of rotor, 1 right side of stator frame is equipped with exciter 4, exciter 4 is connected with 2 one end of rotor, 1 top surface left and right sides of stator frame is equipped with the vertical air cooler 5 of inclining respectively, be equipped with water receiving tank 6 between air cooler 5 and the 1 top surface of stator frame, be equipped with the detection device that leaks in the water receiving tank 6, 6 one side of water receiving tank are equipped with drain pipe 7, drain pipe 7 passes 1 inside and the drain pipe 7 lower extreme of stator frame and is located the. When the utility model is used, the gas cooled by the air cooler 5 is respectively injected from the left end and the right end of the rotor 2 in the stator frame 1, the cold air is cooled along the wind area in the stator frame 1, the hot air after cooling the stator frame 1 and the rotor 2 winding is blown to the air cooler 5 through the top surface in the stator frame 1, the air cooler 5 cools the hot air, and then the cold air is cooled again in a circulating way, so that a closed circulating mode is formed; when the air cooler 5 leaks water, the liquid drops into the water receiving grooves 6, and the water discharge pipes 7 are communicated with the corresponding water receiving grooves 6, so that the leaked water is discharged to the lower part of the shell of the stator base 1 through the water discharge pipes 7, the leaked water is far away from the generator, and the phenomenon that the leaked water enters the stator base 1 to influence the normal operation of the unit is avoided; meanwhile, the water leakage detection device detects water leakage and gives an alarm to remind workers of the water leakage situation, the water leakage detection device adopts products provided by companies such as Zhang Home Port constant-intensity cooling equipment, new electrical equipment in Jinan, south China, Hubei Difeng heat exchangers and the like, and is matched with the air cooler, wherein the type of a liquid level signal meter used in the water leakage detection device is WXJ 1-11-250. The utility model discloses structural design is ingenious, install the air cooler in stator frame top, set up two sets of side air coolers, can increase the area of contact with the hot-air, it carries out refrigerated wind path to have improved the cooling air, be favorable to improving cooling effect and cooling efficiency, the processing apparatus that leaks has still been set up, can carry out the drainage to the water that spills, realize leaking and this device each parts between isolated effect, avoid the motor electronic winding that the air cooler leaks and arouse, the inhomogeneous problem that is heated is unshakable in the rotor, prevent to leak and arouse the stator in getting into the stator frame, the insulation of rotor, the condition of leaking of effective processing air cooler, ensure the safe operation of unit, reduce this device because of the fault probability that leaks water and cause, reduce the cost of overhaul, satisfy the market demand, be worth using widely.
As shown in the figure, the winding of the rotor 2 adopts a concentric distributed winding, the coil is a hollow conductor made of silver-copper alloy through cold drawing, and the air outlets of the coil of the rotor 2 are distributed in a V shape in the groove. When the cold air cools off, the cold air flows through from the hole of 2 coils on the rotor, directly cools off 2 windings on the rotor, and in addition, the air outlet of 2 coils on the rotor is V-arrangement distribution in the groove for the amount of wind is even everywhere on the coil, and the cooling effect is good, has effectively avoided the formation of hot spot.
The gas cooled by the air cooler 5 is driven into the rotor 2, internal parts are cooled along the stator base 1, axial flow fans 8 are mounted at two ends of the rotor 2 body, and the rotor 2 is of a high-quality alloy steel integral forging structure. 2 both ends of rotor all are equipped with axial fan 8, axial fan 8 uses with the cooperation of corresponding air cooler 5, squeeze into cold air by 2 both ends departments of rotor, cold air is along 1 wind zone cooling stator core of stator frame and stator winding, the wind path is that cold wind blows rotor 2 into between center ring and the pivot in the 2 conductors of rotor, cool off rotor 2 and 1 inside back of stator frame, hot-blast top surface blows into both sides air cooler 5 from 1 interior stator frame at last, form airtight circulation after the cooling, the cooling is thorough, improve cooling effect and cooling efficiency, rotor 2 adopts the whole forging structure of high-quality alloy steel, satisfy the user demand, long service life.
Usually, the air volume introduced by the axial flow fan 8 is fixed and cannot be adjusted according to actual requirements, the blades of the axial flow fan 8 are formed by die forging of silicon-aluminum alloy, the left end and the right end of the rotating shaft of the rotor 2 are respectively sleeved with a hub, and the blades of the axial flow fan 8 are installed on the hubs through bolts. The axial flow fan 8 has the characteristics of low pressure head, large flow, high efficiency and the like.
In the use process, the cold air has loss when cooling the stator frame 1 and the rotor 2, the total amount of the gas is insufficient, the gas needs to be supplemented in time, and the left side and the right side of the upper part of the stator frame 1 are provided with supplementary air filters 9. And a supplementary air filter 9 is arranged in a low-pressure air area of the generator, so that when the loss of the gas is insufficient, new gas can be supplemented in time, and the cooling can be performed smoothly.
In actual use, the interior of the equipment needs to be inspected and maintained, and manholes 10 are respectively arranged on the left side and the right side of the front of the lower part of the stator base 1. Manholes are designed to facilitate the entry and exit of personnel into and out of the equipment for welding, installation, maintenance and safety inspection.
In addition, the front of the stator frame 1 is provided with an outlet box 11. The position design of outlet box 11 adopts the mode of side outlet, can avoid upper outlet and lower outlet, avoids the unnecessary loss of being qualified for the next round of competitions, improves life.
In addition, as shown in the figure, the stator base 1 adopts an upper and lower split structure, and the shell wall and the iron core of the stator base 1 form a plurality of wind areas. The structure of the stator frame 1 enables a plurality of air zones to be formed inside the stator frame, cold air can be guided to flow, and the stator frame is divided into iron core sections with different widths according to different air zones in the axial direction, so that the temperature distribution on the whole iron core is uniform.
When the air cooler 5 leaks water, the liquid is discharged through the drain pipe 7, and the end openings of the drain pipe 7 are hinged with the sealing covers 12. When the drain pipe 7 is not used, the sealing cover 12 can play an isolation role, so that external sundries are prevented from entering the port of the drain pipe 7, and the drainage function of the drain pipe 7 is prevented from being influenced.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An air-cooled gas turbine generator structure, characterized in that: including stator frame (1), be equipped with rotor (2) in stator frame (1), rotor (2) pass stator frame (1) and both ends all are located the stator frame (1) outside, install on stator frame (1) through bearing (3) respectively at rotor (2) both ends, stator frame (1) right side is equipped with exciter (4), exciter (4) are connected with rotor (2) one end, stator frame (1) top surface left and right sides is equipped with side-standing air cooler (5) respectively, be equipped with water receiving tank (6) between air cooler (5) and stator frame (1) top surface, be equipped with the detection device that leaks in water receiving tank (6), water receiving tank (6) one side is equipped with drain pipe (7), drain pipe (7) pass inside and drain pipe (7) lower extreme of stator frame (1) and are located the stator frame (1) outside.
2. An air-cooled gas turbine generator structure according to claim 1, characterized in that: the winding of the rotor (2) adopts a concentric distributed winding, the coil is a hollow conductor made of silver-copper alloy through cold drawing, and the air outlets of the coil of the rotor (2) are distributed in a V shape in the groove.
3. An air-cooled gas turbine generator structure according to claim 1, characterized in that: axial fans (8) are installed at two ends of the rotor (2) body, and the rotor (2) is of a high-quality alloy steel integral forging structure.
4. An air-cooled gas turbine generator structure according to claim 3, characterized in that: the fan blades of the axial flow fan (8) are formed by die forging of silicon-aluminum alloy, hubs are respectively sleeved at the left end and the right end of a rotating shaft of the rotor (2), and the fan blades of the axial flow fan (8) are installed on the hubs through bolts.
5. An air-cooled gas turbine generator structure according to claim 1, characterized in that: and the left side and the right side of the upper part of the stator base (1) are provided with supplementary air filters (9).
6. An air-cooled gas turbine generator structure according to claim 1, characterized in that: manholes (10) are respectively arranged on the left side and the right side of the front of the lower part of the stator base (1).
7. An air-cooled gas turbine generator structure according to claim 1, characterized in that: an outlet box (11) is arranged in front of the stator base (1).
8. An air-cooled gas turbine generator structure according to claim 1, characterized in that: the stator base (1) adopts an upper and lower split structure, and the shell wall and the iron core of the stator base (1) form a plurality of wind areas.
9. An air-cooled gas turbine generator structure according to claim 1, characterized in that: the ports of the drain pipe (7) are hinged with a sealing cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000954.7U CN209896796U (en) | 2019-06-27 | 2019-06-27 | Air cooling gas turbine generator structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000954.7U CN209896796U (en) | 2019-06-27 | 2019-06-27 | Air cooling gas turbine generator structure |
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| CN209896796U true CN209896796U (en) | 2020-01-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224522A (en) * | 2019-06-27 | 2019-09-10 | 山东齐鲁电机制造有限公司 | A kind of air-cooled gas turbine generator structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224522A (en) * | 2019-06-27 | 2019-09-10 | 山东齐鲁电机制造有限公司 | A kind of air-cooled gas turbine generator structure |
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