CN-224222352-U - Auxiliary heating device for drawing backrest wheel of gas generator

CN224222352UCN 224222352 UCN224222352 UCN 224222352UCN-224222352-U

Abstract

The utility model belongs to the technical field of maintenance of backrest wheels of gas generators, and particularly relates to an auxiliary heating device for drawing the backrest wheels of the gas generators, which comprises a backrest wheel of the gas generators and an upper heating cavity shell arranged on the surface of the backrest wheel of the gas generators, wherein a butt joint end of one side of the upper heating cavity shell is connected with a lower heating cavity shell, and sealing seats are arranged at openings of the surfaces of the upper heating cavity shell and the lower heating cavity shell.

Inventors

JIN HAI
DUAN JIANGFENG
LI XIAOFENG
ZHAO XUEXIN
CUI BAOLIANG
LI JINXIA

Assignees

沁水寺河瓦斯发电有限公司

Dates

Publication Date: 20260512
Application Date: 20250430

Claims (6)

1. The auxiliary heating device for drawing the backrest wheel of the gas generator comprises a backrest wheel (1) of the generator and an upper heating cavity shell (2) arranged on the surface of the backrest wheel (1) of the generator, and is characterized in that a lower heating cavity shell (3) is connected to the butt joint end of one side of the upper heating cavity shell (2); The sealing device is characterized in that sealing seats (4) are arranged at the surface openings of the upper heating cavity shell (2) and the lower heating cavity shell (3), heating rods (5) are arranged at the openings of the sealing seats (4), mounting plates (6) are connected to the outer sides of the butt joint ends of the upper heating cavity shell (2), assembling plates (7) are connected to the outer side walls of the lower heating cavity shell (3) close to the mounting plates (6), locking bolts (8) are connected to the surfaces of the mounting plates (6) in a penetrating manner, locking nuts (9) are connected to one end surface of each locking bolt (8), graphite heat conducting plates (10) are arranged at the inner wall openings of the upper heating cavity shell (2) and the inner wall openings of the lower heating cavity shell (3), and graphene materials are filled inside the graphite heat conducting plates (10).
2. The auxiliary heating device for drawing the backrest wheel of the gas generator according to claim 1, wherein the upper heating cavity shell (2) and the lower heating cavity shell (3) are made of stainless steel materials, and the inner side notch sizes of the upper heating cavity shell (2) and the lower heating cavity shell (3) are matched with the outer shell size of the backrest wheel (1) of the generator.
3. The auxiliary heating device for drawing the backrest wheel of the gas generator according to claim 1, wherein the butt joint surfaces of the upper heating cavity shell (2) and the lower heating cavity shell (3) are provided with sealing rings made of silica gel, the inner wall of the sealing seat (4) is provided with the sealing rings made of silica gel, and the heating rods (5) are electrically connected in series.
4. The auxiliary heating device for drawing the backrest wheel of the gas generator according to claim 1, wherein the locking bolt (8) penetrates through the mounting plate (6) and the assembling plate (7) to be in threaded connection with the locking nut (9).
5. The auxiliary heating device for drawing the backrest wheel of the gas generator according to claim 1, wherein the surfaces of the upper heating cavity shell (2) and the lower heating cavity shell (3) are connected with a first heat insulation plate (11), the butt joint end of the first heat insulation plate (11) is connected with a second heat insulation plate (12), and the first heat insulation plate (11) and the second heat insulation plate (12) are made of aluminum silicate fiber materials.
6. The auxiliary heating device for drawing the backrest wheel of the gas generator according to claim 5, wherein the butt joint end of the first heat insulation plate (11) is connected with a butt joint plate (13), the surface of the second heat insulation plate (12) close to the butt joint plate (13) is connected with a butt joint seat (14), the butt joint end of the butt joint plate (13) is connected with a guide plate (15), the inner wall of the butt joint seat (14) is connected with an elastic plate (16) made of flexible stainless steel, and the bottom end of the elastic plate (16) is connected with an elastic buckle (17).

Description

Auxiliary heating device for drawing backrest wheel of gas generator Technical Field The utility model belongs to the technical field of maintenance of backrest wheels of gas generators, and particularly relates to an auxiliary heating device for drawing backrest wheels of a gas generator. Background The backrest wheel of the gas generator, also called a coupling, is an important component for connecting a rotating shaft of the gas generator with the rotating shaft of other equipment (such as a gas turbine, a compressor and the like), and generally consists of two half couplings, connecting bolts, elastic elements (part types are provided) and the like. The half coupling is generally forged by high-strength alloy steel, and has good mechanical properties and wear resistance. The connecting bolts are used for tightly connecting the two half couplings together and transmitting torque. The elastic element plays roles of buffering, damping and compensating the relative displacement of the two shafts; the drawing of the backrest wheel of the gas generator refers to the operation process of detaching the backrest wheel (coupler) from the rotating shaft of the generator or the rotating shaft of other equipment connected with the backrest wheel by using special tools and methods in the overhaul, maintenance or component replacement process of the gas generator; mechanical pulling is a traditional and common manner of operation in the disassembly of the back wheel of a gas generator. In this method, the back wheel is forcibly pulled out from the shaft by a mechanical external force, usually by means of a tool such as a puller. However, because the stress is difficult to accurately control in the drawing process, the damage such as deformation and fracture of the shaft pin is extremely easy to occur, and even the surface of the shaft pin is pulled seriously, the assembly precision and the operation stability of equipment are affected, and the auxiliary heating modes in the current market mainly comprise flame heating, electromagnetic induction heating and the like. However, these methods have a common problem of uneven heating in practical applications. Taking flame heating as an example, the temperature distribution and the heating range of flame are difficult to accurately control, the local overheating of the backrest wheel is easy to cause, the performance of the metal material is changed, the uneven heating not only can cause the uneven expansion of the backrest wheel, the drawing difficulty is increased, the drawing effect is affected, and the thermal stress is possibly generated in the backrest wheel, so that the potential safety hazard is buried. Disclosure of utility model The utility model aims to provide an auxiliary heating device for drawing a backrest wheel of a gas generator, and aims to solve the problem that in the prior art, mechanical drawing is a traditional and common operation mode in the disassembly operation of the backrest wheel of the gas generator when the equipment is used. In this method, the back wheel is forcibly pulled out from the shaft by a mechanical external force, usually by means of a tool such as a puller. However, because the stress is difficult to accurately control in the drawing process, the damage such as deformation, fracture and the like of the shaft pin is extremely easy to occur, and the auxiliary heating modes in the current market mainly comprise flame heating, electromagnetic induction heating and the like. However, these methods have a common problem of uneven heating in practical applications. Taking flame heating as an example, the temperature distribution and the heating range of flame are difficult to accurately control, the local overheating of the backrest wheel is easy to cause, the performance of the metal material is changed, the drawing difficulty is increased, the drawing effect is affected, and the problem of potential safety hazards is also likely to be buried due to the fact that thermal stress is generated inside the backrest wheel. The auxiliary heating device for drawing the backrest wheel of the gas generator comprises a backrest wheel of the gas generator and an upper heating cavity shell arranged on the surface of the backrest wheel of the gas generator, wherein one butt joint end of one side of the upper heating cavity shell is connected with a lower heating cavity shell; The sealing seat is installed at the surface opening of the upper heating cavity shell and the surface opening of the lower heating cavity shell, the heating rod is installed at the opening of the sealing seat, the mounting plate is connected to the outer side of the butt joint end of the upper heating cavity shell, the assembly plate is connected to the outer side wall of the lower heating cavity shell, which is close to the mounting plate, a locking bolt is connected to the surface of the mounting plate in a penetrating manner, a locking nut is connected to one end surface of