WO2025227656A1 - 一种燃气轮机燃烧室火焰筒喷涂工装夹具 - Google Patents

一种燃气轮机燃烧室火焰筒喷涂工装夹具

Info

Publication number
WO2025227656A1
WO2025227656A1 PCT/CN2024/132276 CN2024132276W WO2025227656A1 WO 2025227656 A1 WO2025227656 A1 WO 2025227656A1 CN 2024132276 W CN2024132276 W CN 2024132276W WO 2025227656 A1 WO2025227656 A1 WO 2025227656A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas turbine
flame tube
component
combustion chamber
sets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/132276
Other languages
English (en)
French (fr)
Inventor
肖俊峰
南晴
高斯峰
唐文书
李永君
张炯
刘全明
马伟
徐小卜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Thermal Power Research Institute Co Ltd
Original Assignee
Xian Thermal Power Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Thermal Power Research Institute Co Ltd filed Critical Xian Thermal Power Research Institute Co Ltd
Publication of WO2025227656A1 publication Critical patent/WO2025227656A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0285—Stands for supporting individual articles to be sprayed, e.g. doors, vehicle body parts

Definitions

  • This invention relates to the field of spraying fixture technology, and in particular to a spraying fixture for the combustion chamber flame tube of a gas turbine.
  • Heavy-duty gas turbines are a hallmark of a nation's energy power, crucial to national energy security and supply levels.
  • the three core hot-end components of a gas turbine are turbine blades, combustion chamber, and turbine disk.
  • the combustion chamber is the component that withstands the highest temperatures in a gas turbine. It consists of the intake system, casing, flame tube, nozzles, and igniter.
  • the flame tube being the core component that encloses the main gas flow, is most severely affected by the high-temperature environment and airflow.
  • the mainstream models in service in China are F-class gas turbines, whose combustion chamber flame tubes operate at temperatures exceeding 1400°C.
  • the inner surface of the flame tube is coated with a thermal barrier coating using plasma spraying technology for heat insulation protection.
  • the purpose of this invention is to provide a tooling fixture for spraying the combustion chamber flame tube of a gas turbine, which aims to enable the thermal barrier coating on the inner surface of the combustion chamber flame tube to rotate stably coaxially with the spraying worktable during the preparation process, and to cool the flame tube wall during the spraying process.
  • the present invention provides the following technical solution: including a clamping unit, comprising an abutting member abutting against the port of the flame tube, a grid member disposed at the center of the abutting member and the lower end of the grid member extending below the abutting member, eight sets of clamping members disposed on the abutting member and arranged in a ring around the grid member, an adjusting member disposed below the abutting member and sleeved below the grid member at its center, and a driving member disposed on one side below the abutting member.
  • the abutting component includes a sleeve located above the grid component, eight sets of arc-shaped plates distributed in a ring below the sleeve, a limiting groove located between each two adjacent sets of the abutting components, and a limiting piece disposed in the limiting groove.
  • the sleeve is a hollow circular tube structure, and the grid component is disposed inside the circular tube structure of the sleeve.
  • the two ends of the limiting piece located in the limiting groove are respectively fixedly connected to the arc-shaped plates on both sides.
  • the grid component includes a central disk located at the center of the sleeve, the central disk extending downward, eight sets of reinforcing ribs distributed in a ring on the outer side of the central disk, a limiting disk disposed below the central disk, and an airflow channel passing through the center of the central disk.
  • the end of the reinforcing rib is fixedly connected to the inner side of the arc plate, there is a flow groove between each two adjacent sets of reinforcing ribs, and the flow groove is connected to the inside of the sleeve, so that gas can flow in the flow groove and the sleeve.
  • the clamping component includes a slider located in the limiting groove, a clamping plate disposed above the slider, a limiting slot opened laterally on the slider, meshing teeth evenly distributed below the slider, a sliding slot located between each two adjacent sets of meshing teeth, and a friction groove opened on the inner wall of the clamping plate.
  • the limiting plate is slidably connected in the limiting groove, and the slider is limited in the vertical direction by the limiting plate, and the two sides of the slider are limited by the arc plate, and can only slide within the limiting groove.
  • the adjusting component includes: a collar sleeved on the central disk, an adjusting disk located outside the collar, eight sets of fixing rods arranged in a ring between the collar and the adjusting disk with the collar as the center, a spiral rack set on the adjusting disk, and multiple sets of teeth evenly distributed on the outer wall of the adjusting disk.
  • the worm gear rack has a worm structure and the number of worm turns is two
  • the upper end of the worm gear rack is located in the sliding groove
  • the two sides of the worm gear rack abut against the meshing teeth
  • a flow groove is spaced between each two adjacent sets of fixed rods, and the flow groove is connected to the circulation groove.
  • the driving component includes two sets of fixed ears fixedly connected to the underside of one of the arc-shaped plates, a rotating shaft laterally arranged between the two sets of fixed ears, a helical rack spirally wrapped around the rotating shaft and the outer diameter of the helical rack extending to the teeth, and a knob fixedly arranged at one end of the rotating shaft.
  • the beneficial effects of this invention are: it can stably and effectively clamp the gas turbine combustion chamber flame tube during the preparation of the internal surface thermal barrier coating, ensuring its stability during the spraying process; and through the grid design, it increases the channel for air exchange between the inside and outside of the flame tube, improving the cooling efficiency of the flame tube wall; and it can adjust the clamping and fixing range of the device according to the actual size of the flame tube port, meeting more usage needs.
  • Figure 1 is a schematic diagram of the overall structure of the gas turbine combustion chamber flame tube spraying fixture of the present invention.
  • Figure 2 is a schematic diagram of the clamping unit of the gas turbine combustion chamber flame tube spraying fixture of the present invention.
  • Figure 3 is a schematic diagram of the internal structure of the gas turbine combustion chamber flame tube spraying fixture of the present invention.
  • Figure 4 is a schematic diagram of the gas turbine combustion chamber flame tube spraying fixture of the present invention from an upward angle.
  • Figure 5 is a schematic diagram of the abutting component of the gas turbine combustion chamber flame tube spraying fixture of the present invention.
  • Figure 6 is a schematic diagram of the contact component of the gas turbine combustion chamber flame tube spraying fixture of the present invention from an upward perspective.
  • Figure 7 is a schematic diagram of the clamping component of the gas turbine combustion chamber flame tube spraying fixture of the present invention.
  • Figure 8 is a schematic diagram of the structure of the adjusting component of the gas turbine combustion chamber flame tube spraying fixture of the present invention.
  • one embodiment or “embodiment” as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention.
  • the phrase "in one embodiment” appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.
  • the present invention is described in detail with reference to the schematic diagrams.
  • the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale.
  • the schematic diagrams are merely examples and should not limit the scope of protection of the present invention.
  • actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.
  • the first embodiment of the present invention provides a spraying fixture for the combustor of a gas turbine.
  • This device includes a clamping unit 100, comprising an abutting member 101 abutting against the port of the combustor, a grid member 102 disposed at the center of the abutting member 101 with its lower end extending below the abutting member 101, eight sets of clamping members 103 disposed on the abutting member 101 and arranged in a ring around the grid member 102, and a set of clamping members 103 disposed below the abutting member 101 with their center...
  • the adjustment component 104 is fitted below the grille component 102, and the drive component 105 is located on one side below the abutment component 101.
  • the grille component 102 is fixedly connected to the center of the abutment component 101, and the adjustment component 104 is fitted onto the grille component 102.
  • the two are rotatably connected.
  • the clamping component 103 is slidably connected to the clamping component 101. Because the temperature is too high during the spraying process, the entire tooling fixture is made of high-temperature stainless steel alloy or high-temperature alloy material that can withstand temperatures above 400°C.
  • the port of the flame tube is pressed against the contact component 101, so that the grid component 102 is inserted into the flame tube.
  • the rotating adjustment component 104 will push the eight sets of clamping components 103 distributed in a ring on the contact component 101 to gradually move inward and converge.
  • the clamping components 103 moving inward and converge can abut against the outer wall of the flame tube from eight directions, and finally clamp and fix the flame tube to the device.
  • the bottom end of the grid component 102 of the device is connected to the rotating shaft by bolts, so as to achieve the purpose of coaxial rotation with the rotating shaft.
  • the rotating shaft is connected to the spraying worktable, so that the flame tube and the spraying worktable rotate coaxially, so that the spraying angle between the spray gun and the inner surface of the flame tube is always kept at 90°, and the flame tube is kept stable and rotated at a uniform speed during the rotation, so as to realize the automated spraying of the thermal barrier coating on the surface of the gas turbine blade.
  • This embodiment differs from the first embodiment in that it uses an open connection between the clamp and the flame tube, providing a path for air circulation between the inside and outside of the flame tube, thereby improving heat dissipation efficiency.
  • the further embodiment includes a sleeve 101a located above the grid component 102, eight sets of arc-shaped plates 101b arranged in a ring below the sleeve 101a, a limiting groove 101c located between each two adjacent sets of abutting components 101, and a limiting piece 101d disposed in the limiting groove 101c.
  • the inner top surfaces of the eight sets of arc-shaped plates 101b are all fixedly connected to the bottom of the sleeve 101a, but the bottom of the sleeve 101a is not blocked, so that it still maintains the hollow tubular structure inside.
  • the sleeve 101a is a hollow circular tube structure, and the grid component 102 is disposed in the circular tube structure of the sleeve 101a.
  • the two ends of the limiting piece 101d located in the limiting groove 101c are fixedly connected to the arc plate 101b on both sides, so the eight sets of arc plates 101b are fixedly connected together by the eight sets of corresponding limiting pieces 101d.
  • the sleeve 101a has a structure that is thicker at the top and thinner at the bottom, which facilitates the insertion of the flame tube.
  • the clamping component 103 is located in the limiting slide groove 101c and is limited by the arc plates 101b on both sides of the limiting slide groove 101c. It can only slide within the limiting slide groove 101c.
  • the inner end of the limiting slide groove 101c extends towards the sleeve 101a. Therefore, when the clamping component 103 slides inward or outward within the limiting slide groove 101c, it can perform the action of moving closer to clamping or moving away from the flame tube sleeved on the sleeve 101a.
  • the grille component 102 includes a central disk 102a located at the center of the sleeve 101a, with the central disk 102a extending downward, eight sets of reinforcing ribs 102b distributed in a ring on the outside of the central disk 102a, a limiting disk 102c located below the central disk 102a, and an airflow channel 102d that passes through the center of the central disk 102a.
  • the end of the reinforcing rib 102b is fixedly connected to the inner side of the arc plate 101b.
  • the bottom end of the limiting plate 102c is connected to the rotating shaft by a thread.
  • An air extraction pipe is opened inside the rotating shaft and is connected to the airflow channel 102d.
  • the air extraction pipe can be extended into the flame tube through the airflow channel 102d.
  • An air extraction pump is connected to the rear end of the air extraction pipe to suppress the turbulence generated by the sprayed gas inside the flame tube and improve the performance and quality of the thermal barrier coating.
  • the flow groove 102e which is connected to the inside of the sleeve 101a, keeps the part of the device that abuts against the flame tube port in an open state. The open state setting can promote the rapid flow of gas inside the flame tube, thereby playing an auxiliary role in cooling.
  • This embodiment differs from the second embodiment in that: by adjusting the convergence range of the clamping component 103, the purpose of clamping and fixing the flame tube port is achieved, and the purpose of adjusting the clamping range according to the size of the flame tube is realized.
  • the clamping component 103 further includes a slider 103a located in the limiting groove 101c, a clamping plate 103b disposed above the slider 103a, a limiting slot 103c laterally opened on the slider 103a, meshing teeth 103d evenly distributed below the slider 103a, a sliding slot 103e located between each adjacent set of meshing teeth 103d, and a friction groove 103f opened on the inner wall of the clamping plate 103b.
  • the friction groove 103f directly contacts the outer wall of the flame tube, which can increase the friction between the two, thereby further increasing the overall clamping and fixing force of the clamping component 103.
  • the limiting piece 101d is slidably connected in the limiting slot 103c, and the slider 103a is limited by the vertical direction of the limiting piece 101d.
  • the two sides of the slider 103a are limited by the arc plate 101b, and it can only slide within the limiting groove 101c.
  • the adjusting component 104 includes a collar 104a sleeved on the central disk 102a, an adjusting disk 104b located outside the collar 104a, eight sets of fixing rods 104c arranged in a ring between the collar 104a and the adjusting disk 104b with the collar 104a as the center, a spiral rack 104d set on the adjusting disk 104b, and multiple sets of teeth 104e evenly distributed on the outer wall of the adjusting disk 104b.
  • the worm gear rack 104d has a worm structure with two worm turns.
  • the upper end of the worm gear rack 104d is located in the sliding groove 103e, and the two sides of the worm gear rack 104d abut against the meshing teeth 103d.
  • the adjusting component 104 When the adjusting component 104 rotates, the meshing teeth 103d below the clamping component 103 are squeezed by the spiral rack 104d of the adjusting component 104. At this time, the adjusting component 104 will apply a rotational forward force to the clamping component 103 as a whole through the spiral shape of the spiral rack 104d. However, the two sides of the clamping component 103 are limited by the arc plate 101b, so the clamping component 103 can only slide along the limiting slide groove 101c. According to the rotation direction of the adjusting component 104, the clamping component 103 will gradually move towards the flame tube sleeved on the sleeve 101a to clamp or move away from it to release.
  • the eight sets of clamping components 103 move synchronously, which can realize the strong clamping and fixing of the flame tube. At the same time, the distance of movement of the clamping component 103 can be controlled according to the number of rotations of the adjusting component 104, thereby achieving the purpose of adjusting the clamping range according to the size of the flame tube and meeting more usage needs.
  • the drive component 105 includes two sets of fixed ears 105a fixedly connected to the lower part of an arc plate 101b, a rotating shaft 105b horizontally arranged between the two sets of fixed ears 105a, a helical rack 105c spirally wrapped around the rotating shaft 105b and the outer diameter of the helical rack 105c extends to the teeth 104e, and a knob 105d fixedly arranged at one end of the rotating shaft 105b.
  • the helical structure of the helical rack 105c meshes with the teeth 104e.
  • the rotating shaft 105b rotates, it drives the helical rack 105c to rotate.
  • the rotating helical rack 105c squeezes and actuates the teeth 104e, thereby causing the adjusting component 104 to be actuated and rotate around the central disk 102a.
  • the rotating adjusting component 104 pushes the clamping component 103 to perform clamping or releasing actions.
  • the driving component 105 does not rotate, the helical shape of the helical rack 105c limits the teeth 104e. At this time, the teeth 104e are limited and cannot rotate. Therefore, the rotation of the adjusting component 104 cannot drive the helical rack 105c to rotate.
  • the helical rack 105c can be unidirectionally limited and fixed, thereby locking the working state of the clamping component 103.
  • any “device plus function” clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure.
  • Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)

Abstract

本发明公开了喷涂工装技术领域的一种燃气轮机燃烧室火焰筒喷涂工装夹具，包括夹持单元，包括抵靠在火焰筒端口的抵接部件，设置于所述抵接部件圆心位置的格栅部件、且所述格栅部件的下端延伸至所述抵接部件下方，设置于所述抵接部件上、且以所述格栅部件为圆心环形分布的八组夹持部。本发明能够对进行内表面热障涂层在制备过程中的燃气轮机燃烧室火焰筒进行稳定有效的夹持，保障其在喷涂过程中的稳定性，且通过格栅式设计，增大火焰筒内部与外部空气交流的通道，提高火焰筒筒壁的降温效率，并能够根据火焰筒端口的实际尺寸，调整装置的夹持固定范围，满足更多的使用需求。

Description

一种燃气轮机燃烧室火焰筒喷涂工装夹具 技术领域
本发明涉及喷涂工装技术领域，尤其涉及一种燃气轮机燃烧室火焰筒喷涂工装夹具。
背景技术
重型燃气轮机是动力强国的标志性装备之一，事关国家能源安全与供给水平，燃气轮机的三大核心热端部件分别为透平叶片、燃烧室、透平轮盘。从工况看，燃烧室是燃气轮机承受温度最高的部件，由进气装置、壳体、火焰筒、喷嘴和点火器等装置组成，其中，火焰筒是包容主燃气流的核心部件，受高热环境和气流作用侵蚀最为严重。国内服役的主流机型为F级燃气轮机，燃烧室火焰筒均在1400℃以上的高温下工作，火焰筒内表面均采用等离子喷涂技术涂敷的热障涂层进行隔热防护。
目前，国内等离子喷涂技术已可实现复杂曲面的自动化喷涂，但由于火焰筒为回转体结构，内表面涂层喷涂空间受限，无法保证喷涂过程中始终采用90°垂直喷涂，且喷涂气体在火焰筒内部产生气体扰流，易导致涂层组织疏松。此外，火焰筒为薄壁部件，在喷涂过程中，基体温度较高。因此，若想实现重型燃气轮机燃烧室火焰筒内表面热障涂层的完美涂敷，须设计匹配等离子喷涂的工装夹具，保证喷涂过程中部件表面喷涂的精确定位和涂层性能与质量。
发明内容
鉴于上述现有燃气轮机燃烧室火焰筒喷涂工装夹具存在的问题，提出了本发明。
因此，本发明目的是提供一种燃气轮机燃烧室火焰筒喷涂工装夹具，其目的在于：可使燃气轮机燃烧室火焰筒内表面热障涂层在制备过程中与喷涂工作台同轴稳定转动，并且在喷涂过程中，对火焰筒筒壁进行降温。
为解决上述技术问题，本发明提供如下技术方案：包括，夹持单元，包括抵靠在火焰筒端口的抵接部件，设置于所述抵接部件圆心位置的格栅部件、且所述格栅部件的下端延伸至所述抵接部件下方，设置于所述抵接部件上、且以所述格栅部件为圆心环形分布的八组夹持部件，设置于所述抵接部件下方、且圆心位置套接在所述格栅部件下方的调节部件，以及设置于所述抵接部件下方一侧的驱动部件。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述抵接部件包括位于所述格栅部件上方的套管，环形分布在所述套管下方的八组弧形板，位于每相邻两组所述抵接部件之间的限位滑槽，以及设置于所述限位滑槽内的限位片。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述套管为内部中空的圆管结构、且所述格栅部件设置于所述套管的圆管结构内，位于所述限位滑槽内的所述限位片两端、分别与两侧的所述弧形板固定连接。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述格栅部件包括位于所述套管圆心位置的中心盘、且所述中心盘向下延伸，环形分布在所述中心盘外侧的八组加强筋，设置于所述中心盘下方的限位盘，以及贯通设置在所述中心盘圆心位置的气流通道。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述加强筋的末端固定连接在所述弧形板的内侧，每相邻的两组所述加强筋之间存在流通槽、且所述流通槽与所述套管内部连通，气体可在所述流通槽与所述套管内流动。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述夹持部件包括位于所述限位滑槽内的滑块，设置于所述滑块上方的夹持板，横向开设在所述滑块上的限位卡槽，均匀分布在所述滑块下方的啮合齿，位于每相邻两组所述啮合齿之间的滑动卡槽，以及开设在所述夹持板内壁上的摩擦槽。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述限位片滑动连接在所述限位卡槽内、且所述滑块受到所述限位片垂直方向的限位，所述滑块的两侧受到所述弧形板的限位，只能够在所述限位滑槽内进行平移滑动。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述调节部件包括套接在所述中心盘上的套环，位于所述套环外侧的调节盘，以所述套环为圆心、环形分布在所述套环与所述调节盘之间的八组固定杆，设置于所述调节盘上蜗卷齿条，以及均匀分布在所述调节盘外壁上的多组齿牙。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述蜗卷齿条呈蜗卷结构、且蜗卷圈数为两圈，所述蜗卷齿条的上端位于所述滑动卡槽内、且所述蜗卷齿条的两侧与所述啮合齿抵接，每相邻两组所述固定杆之间间隔有流动槽、且所述流动槽与所述流通槽连通。
作为本发明所述燃气轮机燃烧室火焰筒喷涂工装夹具的一种优选方案，其中：所述驱动部件包括两组固定连接在某一所述弧形板下方的固定耳，横向设置在两组所述固定耳之间的转轴，螺旋环绕在所述转轴上的螺旋齿条、且所述螺旋齿条的外径延伸至所述齿牙之间的，以及固定设置在所述转轴一端的旋钮。
本发明的有益效果：能够对进行内表面热障涂层在制备过程中的燃气轮机燃烧室火焰筒进行稳定有效的夹持，保障其在喷涂过程中的稳定性，且通过格栅式设计，增大火焰筒内部与外部空气交流的通道，提高火焰筒筒壁的降温效率，并能够根据火焰筒端口的实际尺寸，调整装置的夹持固定范围，满足更多的使用需求。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。其中：
图1为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的整体结构示意图。
图2为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的夹持单元的结构示意图。
图3为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的内部结构示意图。
图4为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的仰视角结构示意图。
图5为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的抵接部件的结构示意图。
图6为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的抵接部件的仰视角结构示意图。
图7为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的夹持部件的结构示意图。
图8为本发明燃气轮机燃烧室火焰筒喷涂工装夹具的调节部件的结构示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合说明书附图对本发明的具体实施方式做详细的说明。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是本发明还可以采用其他不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似推广，因此本发明不受下面公开的具体实施例的限制。
其次，此处所称的“一个实施例”或“实施例”是指可包含于本发明至少一个实现方式中的特定特征、结构或特性。在本说明书中不同地方出现的“在一个实施例中”并非均指同一个实施例，也不是单独的或选择性的与其他实施例互相排斥的实施例。
再其次，本发明结合示意图进行详细描述，在详述本发明实施例时，为便于说明，表示器件结构的剖面图会不依一般比例作局部放大，而且所述示意图只是示例，其在此不应限制本发明保护的范围。此外，在实际制作中应包含长度、宽度及深度的三维空间尺寸。
实施例1
参照图1～图2，为本发明第一个实施例，提供了一种燃气轮机燃烧室火焰筒喷涂工装夹具，此装置包括夹持单元100，包括抵靠在火焰筒端口的抵接部件101，设置于抵接部件101圆心位置的格栅部件102、且格栅部件102的下端延伸至抵接部件101下方，设置于抵接部件101上、且以格栅部件102为圆心环形分布的八组夹持部件103，设置于抵接部件101下方、且圆心位置套接在格栅部件102下方的调节部件104，以及设置于抵接部件101下方一侧的驱动部件105，格栅部件102固定连接在抵接部件101的圆心位置，调节部件104套接在格栅部件102上，两者之间为转动连接关系，夹持部件103则滑动连接在夹持部件103上，由于喷涂工作中温度过高，因此工装夹具整体由耐400℃以上温度的高温不锈钢合金或者高温合金材料制备。
使用过程中，将火焰筒端口抵靠在抵接部件101上，使得格栅部件102插接于火焰筒内，转动调节部件104调节部件104会推动环形分布在抵接部件101上的八组夹持部件103逐步向内靠近聚拢，向内靠近聚拢的夹持部件103可从八个方向与火焰筒的外壁抵接，并最终将火焰筒夹紧固定在装置上，随后通过螺栓将装置格栅部件102的底端与旋转轴连接，进而达到跟随旋转轴进行同轴转动的目的，旋转轴与喷涂工作台连接，使火焰筒与喷涂工作台同轴转动，实现喷枪与火焰筒内表面喷涂角度始终保持90°，并在转动过程中保持火焰筒的稳定、匀速旋转，实现燃气轮机透平叶片表面热障涂层的自动化喷涂。
实施例2
参照图5～图6，为本发明的第二个实施例，该实施例不同于第一个实施例的是：开放式连接夹具与火焰筒，提供火焰筒内部与外部空气流通的路径，提高散热效率。
相较于实施例1，进一步的，抵接部件101包括位于格栅部件102上方的套管101a，环形分布在套管101a下方的八组弧形板101b，位于每相邻两组抵接部件101之间的限位滑槽101c，以及设置于限位滑槽101c内的限位片101d，八组弧形板101b的内端顶面，均与套管101a的底部固定连接，但不会将套管101a的底端封堵，使其仍保持内部中空的管状结构。
其中，套管101a为内部中空的圆管结构、且格栅部件102设置于套管101a的圆管结构内，位于限位滑槽101c内的限位片101d两端、分别与两侧的弧形板101b固定连接，因此八组弧形板101b通过八组对应的限位片101d固定连接在一起。
使用过程中，套管101a的为上粗下细的结构，可方便火焰筒的插入，而夹持部件103位于限位滑槽101c内，受到来自限位滑槽101c两侧的弧形板101b的限位，只能够在限位滑槽101c内进行平移滑动，限位滑槽101c的内端时往套管101a方向延伸的，因此，当夹持部件103在限位滑槽101c内进行向内或向外方向的滑动时，可以完成向套接在套管101a上火焰筒靠近夹持或远离释放的动作。
其中，格栅部件102包括位于套管101a圆心位置的中心盘102a、且中心盘102a向下延伸，环形分布在中心盘102a外侧的八组加强筋102b，设置于中心盘102a下方的限位盘102c，以及贯通设置在中心盘102a圆心位置的气流通道102d。
其中，加强筋102b的末端固定连接在弧形板101b的内侧，每相邻的两组加强筋102b之间存在流通槽102e、且流通槽102e与套管101a内部连通，气体可在流通槽102e与套管101a内流动。
使用过程中，限位盘102c的底端通过螺纹与旋转轴连接在一起，在旋转轴的能内部开设抽气管道，抽气管道与气流通道102d连通，可将抽气管经由气流通道102d延伸及火焰筒内部，并在抽气管道后端连接抽气泵，起到抑制喷涂气体在火焰筒内部产生扰流，提高热障涂层的性能和质量；而与套管101a内部连通的流通槽102e，则使得装置与火焰筒端口抵接的部位处于开放状态，开放状态的设置可促进火焰筒内部气体的快速流动，进而起到辅助降温的作用。
其余结构与实施例1的结构相同。
实施例3
参照图1～图8，为本发明的第三个实施例，该实施例不同于第二个实施例的是：通过调整夹持部件103的聚拢范围，达到夹持固定火焰筒端口的目的，并实现根据火焰筒尺寸调整夹持范围的目的。
相较于实施例2，进一步的，夹持部件103包括位于限位滑槽101c内的滑块103a，设置于滑块103a上方的夹持板103b，横向开设在滑块103a上的限位卡槽103c，均匀分布在滑块103a下方的啮合齿103d，位于每相邻两组啮合齿103d之间的滑动卡槽103e，以及开设在夹持板103b内壁上的摩擦槽103f，摩擦槽103f直接与火焰筒外壁接触，可增大两者之间的摩擦力，进而进一步增加夹持部件103整体的夹持固定力。
其中，限位片101d滑动连接在限位卡槽103c内、且滑块103a受到限位片101d垂直方向的限位，滑块103a的两侧受到弧形板101b的限位，只能够在限位滑槽101c内进行平移滑动。
其中，调节部件104包括套接在中心盘102a上的套环104a，位于套环104a外侧的调节盘104b，以套环104a为圆心、环形分布在套环104a与调节盘104b之间的八组固定杆104c，设置于调节盘104b上蜗卷齿条104d，以及均匀分布在调节盘104b外壁上的多组齿牙104e。
其中，蜗卷齿条104d呈蜗卷结构、且蜗卷圈数为两圈，蜗卷齿条104d的上端位于滑动卡槽103e内、且蜗卷齿条104d的两侧与啮合齿103d抵接，每相邻两组固定杆104c之间间隔有流动槽104f、且流动槽104f与流通槽102e连通。
使用过程中，当调节部件104转动时，夹持部件103下方的啮合齿103d被调节部件104的蜗卷齿条104d挤压，此时的调节部件104会通过蜗卷齿条104d的螺旋形状对夹持部件103整体的施加一个旋转向前的力，但是夹持部件103的两侧受到弧形板101b的限位，因此夹持部件103只能够沿着限位滑槽101c进行滑动，根据调节部件104的转动方向，夹持部件103会做出逐步向套接在套管101a上的火焰筒抵接夹持或远离释放的动作，八组夹持部件103同步运动，可实现对火焰筒的强力夹持固定，同时可根据调节部件104的转动圈数，控制夹持部件103移动的距离，进而达到根据火焰筒尺寸调整夹持范围的目的，满足更多使用需求。
其中，驱动部件105包括两组固定连接在某一弧形板101b下方的固定耳105a，横向设置在两组固定耳105a之间的转轴105b，螺旋环绕在转轴105b上的螺旋齿条105c、且螺旋齿条105c的外径延伸至齿牙104e之间的，以及固定设置在转轴105b一端的旋钮105d。
使用过程中，螺旋齿条105c的螺旋形结构与齿牙104e啮合，当转轴105b转动时，会带动螺旋齿条105c进行旋转，而旋转的螺旋齿条105c则会挤压拨动齿牙104e，进而使得调节部件104整体被拨动，并以中心盘102a为圆心进行转动，转动的调节部件104则会推动夹持部件103进行夹持或释放动作，而驱动部件105不转动时，螺旋齿条105c的螺旋线形状会对齿牙104e限位，此时的齿牙104e受到限位难以转动，由此可知，调节部件104转动无法带动螺旋齿条105c转动，因此螺旋齿条105c可对其进行单向的限位固定，进而起到锁定夹持部件103工作状态的功能。
其余结构与实施例2的结构相同。
重要的是，应注意，在多个不同示例性实施方案中示出的本申请的构造和布置仅是例示性的。尽管在此公开内容中仅详细描述了几个实施方案，但参阅此公开内容的人员应容易理解，在实质上不偏离该申请中所描述的主题的新颖教导和优点的前提下，许多改型是可能的(例如，各种元件的尺寸、尺度、结构、形状和比例、以及参数值(例如，温度、压力等)、安装布置、材料的使用、颜色、定向的变化等)。例如，示出为整体成形的元件可以由多个部分或元件构成，元件的位置可被倒置或以其它方式改变，并且分立元件的性质或数目或位置可被更改或改变。因此，所有这样的改型旨在被包含在本发明的范围内。可以根据替代的实施方案改变或重新排序任何过程或方法步骤的次序或顺序。在权利要求中，任何“装置加功能”的条款都旨在覆盖在本文中所描述的执行所述功能的结构，且不仅是结构等同而且还是等同结构。在不背离本发明的范围的前提下，可以在示例性实施方案的设计、运行状况和布置中做出其他替换、改型、改变和省略。因此，本发明不限制于特定的实施方案，而是扩展至仍落在所附的权利要求书的范围内的多种改型。
此外，为了提供示例性实施方案的简练描述，可以不描述实际实施方案的所有特征(即，与当前考虑的执行本发明的最佳模式不相关的那些特征，或于实现本发明不相关的那些特征)。
应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (10)

  1. 一种燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：包括，
    夹持单元(100)，包括抵靠在火焰筒端口的抵接部件(101)，设置于所述抵接部件(101)圆心位置的格栅部件(102)、且所述格栅部件(102)的下端延伸至所述抵接部件(101)下方，设置于所述抵接部件(101)上、且以所述格栅部件(102)为圆心环形分布的八组夹持部件(103)，设置于所述抵接部件(101)下方、且圆心位置套接在所述格栅部件(102)下方的调节部件(104)，以及设置于所述抵接部件(101)下方一侧的驱动部件(105)。
  2. 根据权利要求1所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述抵接部件(101)包括位于所述格栅部件(102)上方的套管(101a)，环形分布在所述套管(101a)下方的八组弧形板(101b)，位于每相邻两组所述抵接部件(101)之间的限位滑槽(101c)，以及设置于所述限位滑槽(101c)内的限位片(101d)。
  3. 根据权利要求2所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述套管(101a)为内部中空的圆管结构、且所述格栅部件(102)设置于所述套管(101a)的圆管结构内，位于所述限位滑槽(101c)内的所述限位片(101d)两端、分别与两侧的所述弧形板(101b)固定连接。
  4. 根据权利要求3所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述格栅部件(102)包括位于所述套管(101a)圆心位置的中心盘(102a)、且所述中心盘(102a)向下延伸，环形分布在所述中心盘(102a)外侧的八组加强筋(102b)，设置于所述中心盘(102a)下方的限位盘(102c)，以及贯通设置在所述中心盘(102a)圆心位置的气流通道(102d)。
  5. 根据权利要求4所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述加强筋(102b)的末端固定连接在所述弧形板(101b)的内侧，每相邻的两组所述加强筋(102b)之间存在流通槽(102e)、且所述流通槽(102e)与所述套管(101a)内部连通，气体可在所述流通槽(102e)与所述套管(101a)内流动。
  6. 根据权利要求5所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述夹持部件(103)包括位于所述限位滑槽(101c)内的滑块(103a)，设置于所述滑块(103a)上方的夹持板(103b)，横向开设在所述滑块(103a)上的限位卡槽(103c)，均匀分布在所述滑块(103a)下方的啮合齿(103d)，位于每相邻两组所述啮合齿(103d)之间的滑动卡槽(103e)，以及开设在所述夹持板(103b)内壁上的摩擦槽(103f)。
  7. 根据权利要求6所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述限位片(101d)滑动连接在所述限位卡槽(103c)内、且所述滑块(103a)受到所述限位片(101d)垂直方向的限位，所述滑块(103a)的两侧受到所述弧形板(101b)的限位，只能够在所述限位滑槽(101c)内进行平移滑动。
  8. 根据权利要求7所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述调节部件(104)包括套接在所述中心盘(102a)上的套环(104a)，位于所述套环(104a)外侧的调节盘(104b)，以所述套环(104a)为圆心、环形分布在所述套环(104a)与所述调节盘(104b)之间的八组固定杆(104c)，设置于所述调节盘(104b)上蜗卷齿条(104d)，以及均匀分布在所述调节盘(104b)外壁上的多组齿牙(104e)。
  9. 根据权利要求8所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述蜗卷齿条(104d)呈蜗卷结构、且蜗卷圈数为两圈，所述蜗卷齿条(104d)的上端位于所述滑动卡槽(103e)内、且所述蜗卷齿条(104d)的两侧与所述啮合齿(103d)抵接，每相邻两组所述固定杆(104c)之间间隔有流动槽(104f)、且所述流动槽(104f)与所述流通槽(102e)连通。
  10. 根据权利要求9所述的燃气轮机燃烧室火焰筒喷涂工装夹具，其特征在于：所述驱动部件(105)包括两组固定连接在某一所述弧形板(101b)下方的固定耳(105a)，横向设置在两组所述固定耳(105a)之间的转轴(105b)，螺旋环绕在所述转轴(105b)上的螺旋齿条(105c)、且所述螺旋齿条(105c)的外径延伸至所述齿牙(104e)之间的，以及固定设置在所述转轴(105b)一端的旋钮(105d)。
PCT/CN2024/132276 2024-04-30 2024-11-15 一种燃气轮机燃烧室火焰筒喷涂工装夹具 Pending WO2025227656A1 (zh)

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