CN214314797U - Large-capacity double-water internal cooling generator rotor coil three-way joint structure - Google Patents
Large-capacity double-water internal cooling generator rotor coil three-way joint structure Download PDFInfo
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- CN214314797U CN214314797U CN202022810310.3U CN202022810310U CN214314797U CN 214314797 U CN214314797 U CN 214314797U CN 202022810310 U CN202022810310 U CN 202022810310U CN 214314797 U CN214314797 U CN 214314797U
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Abstract
The utility model discloses a large-capacity double-water internal-cooling generator rotor coil three-way joint structure, which comprises a small coil, a large coil, a lead joint pipe, a forming round hole of the joint pipe, a stainless steel corner and an insulating diversion pipe; the small coil, the large coil and the wire joint pipe are all embedded in the rotor body groove; the shaping round hole is located on the wire joint pipe, and the shaping round hole is connected with the stainless steel turning foot, and the stainless steel turning foot passes through the water tank of insulating leading water union coupling and realizes that small-size coil, large-size coil are connected with the water of water tank.
Description
Technical Field
The utility model relates to a large capacity double water internal cooling generator rotor coil tee joint structure for double water internal cooling generator rotor belongs to double water internal cooling generator rotor technical field.
Background
The stator and rotor coils of the double-water internal cooling generator are cooled by water, the temperature rise of the coils is low, and the cooling effect is good. The water and electric connection of the rotor coil of the double-water internal cooling generator is reliable in operation, the coil is not easy to deform, and the double-water internal cooling generator is balanced and stable in vibration. Under high-speed rotation, a large-flow water system structure is obtained by utilizing the self water pump action, the rotor coil adopts continuous insulation, the insulation life is long, the turn-to-turn insulation is not contacted with a cooling medium, and the operation is reliable. The manufacture, installation and maintenance are more convenient than those of hydrogen-cooled motors.
Along with international market demands, the capacity of the double-water internal cooling generator reaches 660MW grade, the double-water internal cooling generator is optimally designed on the basis of the traditional double-water internal cooling generator technology, a rotor coil adopts an electric connection structure with large and small coils connected in parallel, the parallel connection joint of the rotor coil is positioned at the end of the No. 1 coil at the innermost side, and meanwhile, two magnetic pole leads are respectively welded at the two poles of the rotor coil to share large exciting current, so that heating is reduced. Due to the limitation of space behind the two magnetic pole leads which are circumferentially arranged, the water inlet pipe at the end part of the No. 1 coil can only be arranged near the central line of the magnetic pole and can only be one.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is how to realize a tee bend (one advances two play) wire joint tubular construction that is used for solving rotor big, small size coil circuit and connects in parallel and can only advance water through an inlet tube.
In order to solve the technical problem, the technical scheme of the utility model is to provide a large-capacity double-water internal-cooling generator rotor coil three-way joint structure, which comprises a small coil, a large coil, a lead joint pipe, a forming round hole of the joint pipe, a stainless steel corner and an insulating water diversion pipe; the small coil, the large coil and the wire joint pipe are all embedded in the rotor body groove; the shaping round hole is located on the wire joint pipe, and the shaping round hole is connected with the stainless steel turning foot, and the stainless steel turning foot passes through the water tank of insulating leading water union coupling and realizes that small-size coil, large-size coil are connected with the water of water tank.
Wherein, the tail end of the wire street pipe is provided with a choke plug for sealing.
Wherein, the insulating water conduit is a steel wire braided insulating water conduit.
In the three-way joint structure, the lead joint pipe adopts a hollow copper wire formed by drawing, the external dimension is equivalent to that of a large coil and a small coil which are welded side by side, and the water passing area is equivalent to the sum of the water passing areas of the large coil and the small coil. The middle section of the wire joint pipe is finely processed into a round forming hole, so that the welding connection with the stainless steel corner can be ensured.
The three-way joint structure has the advantages that the lead joint pipe is welded with five positions of the stainless steel crank, the coil, the two magnetic pole leads and the choke plug without mutual influence; the forming round hole in the middle of the lead connector pipe is accurately processed, so that the welding gap is ensured, and the welding quality is ensured; the space limitation that only one water inlet pipe can be arranged at the end part of the rotor coil is successfully solved, the arrangement of the end part of the rotor coil is optimized, and the operation is reliable.
Drawings
FIG. 1 is a schematic view of a large capacity double water internal cooling generator rotor coil three-way wire connector pipe structure;
FIG. 2 is a schematic cross-sectional view of the pipeline A-A of FIG. 1;
fig. 3 is a schematic view of a formed circular hole structure.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Examples
This example is shown in fig. 1, and is a schematic diagram of a large-capacity double-water internal-cooling generator rotor coil tee joint structure, which comprises a small coil 1, a large coil 2, a lead joint pipe 3, a forming round hole 9 of the joint pipe, a choke plug 5, a stainless steel crank 6 and a steel wire woven insulation water guide pipe 7.
Small coil 1, large coil 2 weld with wire joint pipe 3 welding after being a whole side by side its end, inlay in rotor body groove 4, realize the parallel circuit connection of big, small coil, wire joint pipe 3 weaves insulating leading water pipe 7, water tank 8 with the steel wire after welding through shaping round hole 9 and stainless steel turning foot 6 is connected, realize that rotor coil 1, 2 are connected with the water of water tank 8, whole rotor water route is finally guaranteed not to have the seepage through the pump leakage, double water internal cooling wind generator operation is reliable.
The utility model relates to a large capacity two water internal cooling generator rotor coil tee bend (one advances two play) wire joint pipe structure, No. 1 coil of small size, No. 2 coil of large size inlays side by side in rotor body groove 4, the one end of wire joint pipe 3 with weld the end welding that is a holistic big, No. coil of small size, other end welding vexed head 5 seals, the stainless steel turns the one end of foot 6 and is connected through shaping round hole 9 on it with wire joint pipe 3, the other end passes through insulating leading water pipe 7 and is connected with water tank 8.
The utility model has the advantages that the five welding positions of the lead joint pipe 3, the stainless steel crank 6, the coil, the two magnetic pole leads and the choke plug 5 can not be mutually influenced; the forming round hole 9 in the middle of the lead connector pipe 3 is accurately processed, so that the welding gap is ensured, and the welding quality is ensured; the space limitation that the end part of the rotor coil can only be provided with one water inlet pipe is successfully solved, the arrangement of the end part of the rotor coil is optimized, and the operation is reliable.
Claims (3)
1. A high-capacity double-water internal cooling generator rotor coil three-way joint structure comprises a small coil, a large coil, a lead joint pipe, a forming round hole of the joint pipe, a stainless steel corner and an insulating water diversion pipe; the small coil, the large coil and the wire joint pipe are all embedded in the rotor body groove; the shaping round hole is located on the wire joint pipe, and the shaping round hole is connected with the stainless steel turning foot, and the stainless steel turning foot passes through the water tank of insulating leading water union coupling and realizes that small-size coil, large-size coil are connected with the water of water tank.
2. The rotor coil three-way joint structure of the large-capacity double-water-cooled generator as claimed in claim 1, wherein a choke plug is arranged at the tail end of the conducting wire street tube for sealing.
3. The large-capacity double-water-cooled generator rotor coil three-way joint structure as claimed in claim 1, wherein the insulating water conduit is a steel wire braided insulating water conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022810310.3U CN214314797U (en) | 2020-11-27 | 2020-11-27 | Large-capacity double-water internal cooling generator rotor coil three-way joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022810310.3U CN214314797U (en) | 2020-11-27 | 2020-11-27 | Large-capacity double-water internal cooling generator rotor coil three-way joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214314797U true CN214314797U (en) | 2021-09-28 |
Family
ID=77844919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022810310.3U Active CN214314797U (en) | 2020-11-27 | 2020-11-27 | Large-capacity double-water internal cooling generator rotor coil three-way joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214314797U (en) |
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2020
- 2020-11-27 CN CN202022810310.3U patent/CN214314797U/en active Active
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