CN107425682B - Connecting and mounting method for rotor and stator of TRT (blast furnace Top gas turbine Generator) - Google Patents
Connecting and mounting method for rotor and stator of TRT (blast furnace Top gas turbine Generator) Download PDFInfo
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- CN107425682B CN107425682B CN201710444895.1A CN201710444895A CN107425682B CN 107425682 B CN107425682 B CN 107425682B CN 201710444895 A CN201710444895 A CN 201710444895A CN 107425682 B CN107425682 B CN 107425682B
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- rotor
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- bearing seat
- end bearing
- excitation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
Abstract
A connecting and mounting method for a rotor and a stator of a TRT generator comprises the following steps: placing a stator and a rotor, and adjusting the gravity center; the lifting machine applies force to lift the assembly of the excitation end bearing seat and the rotor; removing the right rest stand to align the rotor with the inner hole of the stator, and moving the rotor and the excitation end bearing seat to the left until the left end of the rotor passes through the stator and then is supported on the left rest stand; then a lifting rope is respectively connected to the left end of the rotor and the left end of the rotor lifted by another lifting machine, and then the left rest frame is removed; two cranes are utilized to move the rotor and the excitation end bearing seat to the left, finally, the leftmost end of the rotor is supported on the left rest stand, and the excitation end bearing seat is supported on the support platform; and removing the corresponding lifting rope and the corresponding lifting machine, and further completing the connection and installation of the rotor and the stator of the TRT generator. The invention can solve the problem of connecting and installing the rotor and the stator of the TRT generator with high quality.
Description
Technical Field
The invention relates to an installation operation method for connecting and installing a rotor and a stator of a TRT generator.
Background
A TRT blast furnace gas residual pressure turbine power generation device is a secondary energy recovery device which utilizes the pressure energy and heat energy of blast furnace top gas, which is a byproduct of blast furnace smelting, to make the gas work through a turbine expander, convert the gas into mechanical energy and drive a generator or other devices to generate power. The device not only recovers the energy discharged by the pressure reducing valve bank, but also purifies the coal gas, reduces the noise, stabilizes the pressure of the furnace top, improves the production conditions of the blast furnace, does not produce any pollution, can realize pollution-free power generation, and is an energy-saving and environment-friendly device acknowledged by iron and steel enterprises in the modern world and China. A TRT blast furnace gas residual pressure turbine power generation device relates to a connection structure of a rotor and a stator of a generator, but how to effectively, quickly and accurately realize the connection and installation of the rotor and the stator of the TRT generator is still a problem to be solved.
Disclosure of Invention
The invention mainly aims to provide a method for effectively, quickly and accurately connecting and mounting a rotor and a stator of a TRT generator.
The technical scheme adopted by the invention is as follows:
a connecting and mounting method for a rotor and a stator of a TRT generator comprises the rotor, the stator, a turbine end bearing seat base, a turbine end bearing seat upper cover assembly, an excitation end bearing seat assembly, a lifting machine, a lifting rope, a left rest stand, a right rest stand and a supporting platform; the right rest rack is arranged on the right side of the stator and consists of two right supporting pieces arranged at intervals; the supporting platform is arranged between the stator and the right rest stand, and the front side and the rear side of the supporting platform are provided with structures for rolling and supporting the excitation end bearing seat assembly; before the rotor is hoisted, the excitation end bearing block assembly is positioned on the right side of the right rest stand; the left rest rack is arranged between the turbine end bearing seat base and the left end of the stator, and then the installation is carried out according to the following steps:
firstly, the method comprises the following steps: firstly, a stator is placed on a mounting position and is aligned and fixed, a rotor is moved to a right rest frame, an excitation end bearing seat assembly and the rotor are connected together, and then the gravity center of the excitation end bearing seat assembly and the rotor connected together is adjusted to enable the gravity center to fall in the middle of two right supporting pieces;
II, secondly: connecting the upper end of a lifting rope with a lifting hook of a lifting machine, respectively sleeving the two sides of the lower end of the lifting rope on a rotor, respectively enabling the connecting parts of the lifting rope and the rotor to be close to a left right supporting piece and a right supporting piece respectively, enabling the center of gravity of the connecting part of the excitation end bearing seat component and the rotor to be located in the center of the connecting part of the lifting rope and the rotor, and enabling the lifting machine to apply force to lift the assembly of the excitation end bearing seat component and the rotor;
thirdly, the method comprises the following steps: removing the right rest stand, and moving the rotor together with the excitation end bearing seat assembly leftwards by using the crane until the excitation end bearing seat assembly is placed on the supporting platform; adjusting the position to align the axis of the rotor with the axis of the stator hole, and moving the rotor to the left end of the rotor to penetrate through the stator and then to be supported on the left rest frame;
fourthly, the method comprises the following steps: the connection of the lifting machine, the lifting rope and the right side of the rotor is released, the lifting machine on the right side of the stator is moved to the left side of the stator, the lower end and the upper end of one lifting rope are respectively connected with the left end of the rotor and the lifting machine, and then the left rest frame is removed;
fifthly: the rotor and the excitation end bearing seat assembly continue to move leftwards, finally, the leftmost end of the rotor is supported on the turbine end bearing seat base, and the excitation end bearing seat assembly is still supported on the supporting platform;
sixthly, the method comprises the following steps: and removing the corresponding lifting rope and the corresponding lifting machine, fixedly connecting the excitation end bearing seat assembly with the supporting platform, and fixedly connecting the turbine end bearing seat upper cover with the turbine end bearing seat base cover to complete the connection and installation of the rotor and the stator of the TRT generator.
The invention provides an ideal connecting and mounting platform, and the connecting and mounting of the rotor and the stator of the TRT generator can be realized quickly, easily and well according to the provided mounting platform and mounting steps. In addition, the left rest stand can also be composed of a right support from the right to the left.
Preferably, the lifting rope is connected to the rotor via a protective pad. In order to avoid the damage of the lifting rope to the rotor, on one hand, a corresponding rope sleeve can be sleeved on the lifting rope. According to the preferred scheme, the protective gasket can be a steel paperboard, the structure is simple, the use is convenient, and the damage to the rotor in the lifting process can be well avoided.
Preferably, the left end of the rotor is connected with an auxiliary shaft, the crane is connected with the auxiliary shaft through a lifting rope, when the leftmost end of the rotor is supported on the left rest frame, the auxiliary shaft is positioned on the left side of the left rest frame, and the auxiliary shaft can be quickly detached from the rotor. The auxiliary shaft can be connected with the rotor on the left side of the stator, and then the gravity center of the auxiliary shaft, the rotor and the excitation end bearing seat composite body is found correspondingly. In addition, the lifting machine is connected with the auxiliary shaft through a lifting rope, the left rest frame is detached to lift the left end of the rotor to move leftwards until the left end of the rotor is correctly placed on the base of the bearing seat at the turbine end, and then the auxiliary shaft is detached. This preferred scheme, rational in infrastructure, convenient to use, effect are good.
Preferably, the left support frame and the right support frame are both hydraulic support frames. The optimal selection scheme is simple and convenient to operate and good in using effect.
Preferably, the two right supporting pieces of the left rest stand and the right rest stand are both composed of a sleeper and a rubber connected with the upper end of the sleeper. The optimal scheme has low cost, convenient use and good rotor protection effect.
In conclusion, the beneficial effects of the invention are as follows: the connecting and mounting steps of the rotor and the stator of the TRT generator are clear, and the connecting and mounting of the rotor and the stator of the TRT generator can be quickly and well realized.
Drawings
FIG. 1: a flow schematic diagram of a connecting and mounting method of a rotor and a stator of the TRT generator;
FIG. 2: the invention has a first structural diagram;
FIG. 3: a second schematic view of the assembly of a stator and a rotor with the present invention;
FIG. 4: a third schematic view of assembling a stator and a rotor with the present invention;
in the figure: the device comprises a rotor 1, a stator 2, a turbine end bearing seat 3, an excitation end bearing seat 4, a lifting machine 5, a lifting rope 6, a left rest 7, a right rest 8, a right support 8.1, a support platform 9, a protective gasket 10 and an auxiliary shaft 11.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, the present invention includes a rotor 1, a stator 2, a turbine end bearing block base 3 and a turbine end bearing block upper cover assembly, an excitation end bearing block assembly 4, a crane 5, a lifting rope 6, a left rest stand 7, a right rest stand 8, a support platform 9, a protective pad 10 and an auxiliary shaft 11. The right rest frame 8 is arranged on the right side of the stator 2 and is composed of two right supporting pieces 8.1 arranged at intervals. The supporting platform 9 is disposed between the stator and the right rest stand, and the front and rear sides thereof are provided with structures for rolling and supporting the excitation end bearing block assembly 4, and details are not described herein. The support platform 9 is located right next to the left of the right rest stand 8 by a right support 8.1. The lower end of the excitation end bearing block assembly 4 is in rolling connection with the support platform 9 when placed on the support platform 9. Before the rotor 1 is hoisted, the excitation end bearing block assembly 4 is positioned on the right side of one right support piece 8.1 on the right side of the two right support pieces 8.1 of the right rest stand 8; the left rest 7 (which may be left unset and moved over by one of the right supports 8.1) is placed between the turbine end bearing block 3 and the left end of the stator, and after the relevant structures are fixed, the connection and installation are performed according to the following steps:
firstly, the method comprises the following steps: firstly, a stator is placed on a mounting position and is aligned and fixed, a rotor is moved to a right rest frame, an excitation end bearing seat assembly is connected with the rightmost end of the rotor, an auxiliary shaft 11 is connected with the leftmost end of the rotor 1, the auxiliary shaft 11 can be quickly detached from the rotor 1, and then the gravity center of the excitation end bearing seat assembly, the rotor and the auxiliary shaft which are connected together is adjusted to enable the gravity center to fall on the middle part of two right supporting pieces;
II, secondly: connecting the upper end of a lifting rope with a lifting hook of a lifting machine, respectively sleeving the two sides of the lower end of the lifting rope on a rotor, arranging a protective gasket 10 between the lifting rope and the rotor at the moment, and enabling the connecting part of the lifting rope and the rotor to be respectively close to a left right supporting piece and a right supporting piece, wherein the center of gravity of the connecting part of the excitation end bearing seat assembly, the rotor and an auxiliary shaft is positioned in the center of the connecting part of the lifting rope and the rotor, and the lifting machine applies force to lift the assembly of the excitation end bearing seat assembly, the rotor and the auxiliary shaft;
thirdly, the method comprises the following steps: quickly removing the right rest stand, and moving the rotor together with the excitation end bearing block assembly and the auxiliary shaft leftwards by using a crane to pass through the stator, wherein the lower end of the excitation end bearing block is connected with the supporting platform 9 in a rolling manner until the left end of the rotor passes through the stator and is supported on the left rest stand by the auxiliary shaft, and at the moment, part of the auxiliary shaft extends to the left side of the left rest stand;
fourthly, the method comprises the following steps: the connection of the lifting machine, the lifting rope, the steel plate paper and the right side of the rotor is released, the lifting machine on the right side of the stator is moved to the left side of the stator, the lower end and the upper end of one lifting rope are respectively connected with the left end of the rotor and the lifting machine, and then the left rest frame is removed;
fifthly: the rotor, the excitation end bearing seat assembly and the auxiliary shaft continue to move leftwards, finally, the auxiliary shaft is arranged on the turbine end bearing seat base, and the excitation end bearing seat assembly is still supported on the supporting platform;
sixthly, the method comprises the following steps: removing the corresponding lifting rope, the lifting machine and the auxiliary shaft; the excitation end bearing seat assembly and the supporting platform are fixedly connected together, the turbine end bearing seat upper cover and the turbine end bearing seat base cover are fixedly connected together, and then the connection and installation of the rotor and the stator of the TRT generator are completed.
The left rest rack 7 and the two right support pieces 8.1 are hydraulic support frames or are composed of sleepers and rubber connected with the upper ends of the sleepers. In this embodiment, the left rest 7 and the two right supports 8.1 are each formed by a sleeper and a rubber sheet connected to the upper end of the sleeper.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the structure and scope of the invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes in the shapes, structures and design objectives of the present invention are intended to be covered by the present invention, and all such equivalent changes are intended to be protected by the present invention.
Claims (1)
1. A connecting and mounting method for a rotor and a stator of a TRT generator comprises the rotor, the stator, a turbine end bearing seat base, an upper cover assembly, an excitation end bearing seat assembly, a lifting machine, a lifting rope, a left rest frame, a right rest frame and a supporting platform; the right shelf frame is arranged on the right side of the stator and comprises two right supporting pieces arranged at intervals; the supporting platform is arranged between the stator and the right shelving frame, and the front side and the rear side of the supporting platform are provided with structures for rolling and supporting the excitation end bearing seat assembly; the excitation end bearing seat assembly is positioned on the right side of the right rest stand; the left rest rack is arranged between the turbine end bearing seat base and the left end of the stator, and then the installation is carried out according to the following steps:
firstly, the method comprises the following steps: firstly, a stator is placed on a mounting position and is aligned and fixed, a rotor is moved to a right rest frame, an excitation end bearing seat assembly is connected with the rotor, and the center of gravity of the excitation end bearing seat assembly connected with the rotor is adjusted to enable the center of gravity to fall in the middle of two right supporting pieces;
II, secondly: the upper end of a lifting rope is connected with a lifting hook of a lifting machine, the two sides of the lower end of the lifting rope are respectively sleeved on a rotor, the connecting parts of the lifting rope and the rotor are respectively close to a left right supporting piece and a right supporting piece, the center of gravity of the connecting part of the excitation end bearing seat component and the rotor is positioned in the center of the connecting part of the lifting rope and the rotor, and the lifting machine applies force to lift the assembly of the excitation end bearing seat component and the rotor;
thirdly, the method comprises the following steps: removing the right rest stand, and moving the rotor together with the excitation end bearing seat assembly leftwards by using a crane until the excitation end bearing seat assembly is placed on the supporting platform; adjusting the direction to align the axis of the rotor with the axis of the stator hole, and moving the rotor to the left end of the rotor to penetrate through the stator and then to be supported on the left rest frame;
fourthly, the method comprises the following steps: the connection of the lifting machine, the lifting rope and the right side of the rotor is released, the lifting machine is moved to the left side of the stator, the left end of the rotor and the lifting machine are respectively connected by utilizing the lower end and the upper end of one lifting rope, and the left rest frame is removed;
fifthly: the rotor and the excitation end bearing seat assembly continue to move leftwards, and finally the leftmost end of the rotor is supported on the turbine end bearing seat base;
sixthly, the method comprises the following steps: removing corresponding lifting ropes and a corresponding lifting machine, fixedly connecting the excitation end bearing seat assembly with the supporting platform, and fixedly connecting the turbine end bearing seat upper cover with the base cover to complete the connection and installation of the rotor and the stator of the TRT generator; wherein the content of the first and second substances,
the lifting rope (6) is connected with the rotor (1) through a protective gasket (10);
the left end of the rotor (1) is connected with an auxiliary shaft (11), the crane is connected with the auxiliary shaft (11) through a lifting rope, when the leftmost end of the rotor is supported on the left rest frame, the auxiliary shaft (11) is partially positioned on the left side of the left rest frame, and the auxiliary shaft (11) can be quickly detached from the rotor (1);
the left rest stand (7) and the two right supporting pieces (8.1) are hydraulic supporting frames;
the two right supporting pieces (8.1) of the left rest rack (7) and the right rest rack (8) are both composed of a sleeper and a rubber sheet connected with the upper end of the sleeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444895.1A CN107425682B (en) | 2017-06-12 | 2017-06-12 | Connecting and mounting method for rotor and stator of TRT (blast furnace Top gas turbine Generator) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444895.1A CN107425682B (en) | 2017-06-12 | 2017-06-12 | Connecting and mounting method for rotor and stator of TRT (blast furnace Top gas turbine Generator) |
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| Publication Number | Publication Date |
|---|---|
| CN107425682A CN107425682A (en) | 2017-12-01 |
| CN107425682B true CN107425682B (en) | 2020-03-17 |
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| CN201710444895.1A Active CN107425682B (en) | 2017-06-12 | 2017-06-12 | Connecting and mounting method for rotor and stator of TRT (blast furnace Top gas turbine Generator) |
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| CN111934499B (en) * | 2020-06-05 | 2022-12-09 | 山东齐鲁电机制造有限公司 | Gas turbine generator rotor dismounting and mounting method and using device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005057915A (en) * | 2003-08-06 | 2005-03-03 | Kawasaki Heavy Ind Ltd | Method and apparatus for inserting rotor |
| CN101976913B (en) * | 2010-10-29 | 2012-11-21 | 中国三冶集团有限公司电气安装工程公司 | Main driving motor hoisting method of roughing mill |
| CN104348310B (en) * | 2014-11-12 | 2017-01-25 | 中国十九冶集团有限公司南京分公司 | Mounting method for field rotor penetration of TRT (Top Gas Pressure Recovery Turbine) generator |
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