A reinforced load-bearing device for insulation of fuel branch pipes in gas turbines to prevent trampling

Abstract

This invention relates to the field of gas turbine insulation technology, and discloses an anti-trampling reinforced load-bearing device for gas turbine fuel branch pipe insulation. The device includes a branch pipe body, a buffer insulation component on the outer side of the branch pipe body, a load-bearing component on top of the buffer insulation component, a protective component on top of the load-bearing component, and quick-release components on both sides of the protective component. The buffer insulation component includes an elastic buffer pad wrapped around the outer side of the branch pipe body, with first Velcro fasteners at both ends of the elastic buffer pad. Grooves are formed on both sides of the elastic buffer pad, and second Velcro fasteners are sewn into the grooves. Compared to existing technologies that use integral welding, permanent bolt fastening, or casting embedding for fixing protective nets, this invention eliminates the need for cutting tools or disassembling numerous related components, significantly shortening maintenance downtime, reducing maintenance difficulty and cost, and preventing concentrated loads from directly acting on the local insulation layer.

Description

Technical Field

[0001] This invention relates to the field of gas turbine insulation technology, specifically to an anti-trampling reinforced load-bearing device for gas turbine fuel branch pipe insulation. Background Technology

[0002] As a critical pipeline for transporting high-temperature, high-pressure fuel, the fuel branch pipe of a gas turbine is typically covered with an insulation layer to reduce heat loss, maintain stable fuel temperature, and prevent burns to personnel. It is further reinforced with an external metal protective plate to prevent trampling. However, existing gas turbine fuel branch pipe insulation systems have the following problems: Fuel branch pipes are typically located near personnel access or equipment maintenance passages, inevitably subjecting them to trampling or tool impacts during operation and maintenance. While some anti-trampling protection structures exist in existing technologies, they are mostly fixed to the branch pipes through integral welding, permanent bolt fastening, or casting and embedding. Although this design provides some mechanical protection, the anti-trampling structure is difficult to remove quickly when periodic inspections or replacements are required for the branch pipe body, valves, welds, or insulation layer. This often necessitates the use of cutting tools or the disassembly of numerous related components, severely restricting maintenance efficiency, extending downtime, and increasing maintenance costs. Most existing anti-trampling structures directly and rigidly transfer trampling or collision loads to the insulation layer and the outer wall of the branch pipes, lacking effective impact buffering and load distribution mechanisms. When people step on them or heavy objects fall, the concentrated load is applied instantaneously to the local insulation layer, which can easily cause the insulation material to be crushed, deformed, or broken, thereby compromising the integrity and thermal insulation performance of the insulation structure.

[0003] Therefore, in order to better improve the insulation effect of gas turbine fuel branch pipes, and at the same time to promote technological progress in the industry and enhance core technological competitiveness, this application proposes a new implementation scheme that differs from the existing technology of gas turbine fuel branch pipe insulation anti-trampling enhanced load-bearing device and application method. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an enhanced anti-trampling load-bearing device for gas turbine fuel branch pipe insulation, mainly to solve the problems of existing gas turbine fuel branch pipe insulation systems having anti-trampling structures that hinder maintenance and lacking impact buffering mechanisms.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: An anti-trampling reinforced load-bearing device for heat preservation of fuel branch pipe of gas turbine includes a branch pipe body, a buffer insulation component on the outside of the branch pipe body, a load-bearing component on the top of the buffer insulation component, a protective component on the top of the load-bearing component, and quick-release components on both sides of the protective component.

[0006] Furthermore, the buffer insulation component includes an elastic buffer pad wrapped around the outside of the branch pipe body, and the two ends of the elastic buffer pad are provided with first Velcro, and the two sides of the elastic buffer pad are provided with grooves, and second Velcro is sewn into the grooves.

[0007] Based on the aforementioned solution, the buffer insulation component includes an elastic buffer pad wrapped around the outside of the branch pipe body, and the two ends of the elastic buffer pad are provided with first Velcro to fix the elastic buffer pad. The elastic buffer pad has grooves on both sides, and second Velcro is sewn into the grooves. The outside of the branch pipe body is provided with an insulation sleeve, and a third Velcro is sewn into one side of each of the two adjacent insulation sleeves. The third Velcro is staggered, and the two ends of the inner side of the insulation sleeve are bonded to the second Velcro.

[0008] As a further embodiment of the present invention, the load-bearing component includes a load-bearing clamp sleeved on the outside of the elastic buffer pad. A positioning support column is fixedly connected to the top of the load-bearing clamp, and a connecting groove is provided on one side of the positioning support column. A load-bearing ring is fixedly connected to the top of the positioning support column. The load-bearing ring has an arc-shaped structure. Connecting ears are integrally formed on both sides of the load-bearing ring, and an insertion groove is provided on one side of the connecting ears. Multiple positioning grooves are provided on one side of the load-bearing ring. A reinforcing rib is fixedly connected to the bottom of the load-bearing ring. The reinforcing rib is an arc-shaped mechanism and is embedded with the top of the positioning support column.

[0009] Furthermore, the load-bearing clamp is provided with fixing bolts on both sides, and the fixing bolts pass through the load-bearing clamp and the positioning block in sequence. The insertion slot is inserted into the top of the fixing bolt, and the load-bearing clamp, the positioning block and the load-bearing ring are fixed by the fixing bolt.

[0010] Based on the aforementioned scheme, the protective component includes two arc-shaped mounting frames, with multiple reinforcing rods fixedly connected between the mounting frames, and a protective net fixedly connected to the outer surface of the reinforcing rods. The inner side of each mounting frame is integrally formed with a positioning pin, which is inserted into a positioning groove.

[0011] As a further embodiment of the present invention, the quick-release assembly includes a locking pin that penetrates and is inserted into the positioning pin and one side of the mounting frame. The locking pin engages with the connecting slot. A first housing and a second housing are fixedly connected to both sides of the top of the reinforcing rod. The locking pin slides within the first housing. A guide shaft is fixedly connected to one side of the locking pin, and a spring is sleeved on the outer surface of the guide shaft. One side of the spring is fixedly connected to one end of the locking pin, and the other end of the spring is fixedly connected to the inner wall of one side of the first housing. A conical head is fixedly connected to one end of the guide shaft that passes through the first housing, and the conical head slides within the second housing. A pressing block is inserted through the top of the reinforcing rod, and the pressing block is located on one side of the conical head. An arc-shaped groove is formed on one side of the top of the pressing block, and one side of the arc-shaped groove contacts the outer wall of the conical head. A handle is inserted through one side of the reinforcing rod, and a limit block is fixedly connected to the bottom of the handle. The other end of the handle is fixedly connected to the top of the pressing block.

[0012] (III) Beneficial Effects Compared with the prior art, the present invention provides an anti-trampling reinforced load-bearing device for heat preservation of fuel branch pipes in gas turbines, which has the following beneficial effects: 1. This device adopts a modular design. The protective components are fixed by locking the positioning pins, latches, and connecting slots. Disassembly is simple: just pull the handles on both sides, and the squeezing block pushes the conical head, disengaging the latches from the connecting slots, allowing for quick removal of the protective components. Compared to existing technologies that use methods such as integral welding, permanent bolt fastening, or casting and embedding to fix the protective net, this solution eliminates the need for cutting tools or disassembling numerous related components, significantly reducing downtime and lowering maintenance difficulty and costs.

[0013] 2. The load-bearing components adopt a combination structure of arc-shaped load-bearing clamps and load-bearing rings. Interlocking support is achieved through positioning support columns and reinforcing ribs, significantly increasing the contact area with the elastic buffer pad. When people step on it or tools collide with it, the load is transferred through the protective netting and installation frame to the load-bearing ring, and then evenly distributed onto the elastic buffer pad through the arc-shaped load-bearing clamps, preventing concentrated loads from directly acting on the local insulation layer. Combined with the elastic buffer pad made of high-temperature ceramic fiber composite material, it effectively absorbs and buffers impact energy, preventing the insulation material from being crushed, deformed, or broken, ensuring the integrity of the insulation structure and the long-term stability of its thermal insulation performance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an anti-trampling reinforced load-bearing device for heat preservation of fuel branch pipes in gas turbines, as proposed in this invention. Figure 2 This is a schematic diagram of the installation structure of the buffer insulation component of the anti-trampling enhanced load-bearing device for gas turbine fuel branch pipe insulation proposed in this invention; Figure 3This is a schematic diagram of the installation structure of the load-bearing component of an anti-trampling reinforced load-bearing device for heat preservation of fuel branch pipes of gas turbines proposed in this invention. Figure 4 This is a schematic diagram of the exploded structure of the load-bearing component of an anti-trampling reinforced load-bearing device for gas turbine fuel branch pipe insulation proposed in this invention. Figure 5 This is an enlarged structural diagram of the load-bearing component of an anti-trampling reinforced load-bearing device for heat preservation of fuel branch pipes of gas turbines proposed in this invention. Figure 6 This is a three-dimensional structural diagram of the protective component of an anti-trampling reinforced load-bearing device for heat preservation of fuel branch pipes in gas turbines, as proposed in this invention. Figure 7 This is an enlarged structural diagram of the quick-release component of a reinforced anti-trampling load-bearing device for gas turbine fuel branch pipe insulation proposed in this invention; Figure 8 This is a schematic diagram of the quick-release assembly installation structure of a reinforced anti-trampling load-bearing device for gas turbine fuel branch pipe insulation proposed in this invention.

[0015] In the diagram: 1. Elastic buffer pad; 101. First Velcro strap; 102. Second Velcro strap; 2. Branch pipe body; 3. Positioning block; 4. Insulation sleeve; 401. Third Velcro strap; 5. Load-bearing clamp; 6. Positioning support column; 601. Connecting slot; 7. Load-bearing ring; 701. Connecting ear; 702. Insertion slot; 703. Positioning slot; 8. Reinforcing rib; 9. Fixing bolt; 10. Mounting frame; 11. Reinforcing rod; 12. Protective net; 13. Positioning pin; 14. Locking pin; 15. Guide shaft; 16. Spring; 17. First housing; 18. Conical head; 19. Second housing; 20. Extrusion block; 21. Arc groove; 22. Handle; 23. Limiting block. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figures 1 - 8 A reinforced anti-trampling load-bearing device for heat preservation of fuel branch pipe of gas turbine includes a branch pipe body 2, a buffer insulation component on the outside of the branch pipe body 2, a load-bearing component on the top of the buffer insulation component, a protective component on the top of the load-bearing component, and quick-release components installed on both sides of the protective component. The buffer insulation component includes an elastic buffer pad 1 wrapped around the outside of the branch pipe body 2. The elastic buffer pad 1 is an annular pad made of high temperature ceramic fiber composite material with a thickness of 8-15mm. The two ends of the elastic buffer pad 1 are provided with first Velcro 101 to fix the elastic buffer pad 1. The elastic buffer pad 1 has grooves on both sides, and second Velcro 102 is sewn into the grooves. Positioning blocks 3 are welded to both sides of the branch pipe body 2; The outer side of the branch pipe body 2 is provided with an insulation sleeve 4. A third hook and loop fastener 401 is sewn to one side of each of the two adjacent insulation sleeves 4, and the third hook and loop fasteners 401 are staggered. The inner ends of the insulation sleeve 4 are bonded to the second hook and loop fastener 102. The load-bearing component includes a load-bearing clamp 5 sleeved on the outside of the elastic buffer pad 1. A positioning support column 6 is welded to the top of the load-bearing clamp 5, and a connecting slot 601 is opened on one side of the positioning support column 6. A load-bearing ring 7 is fixed to the top of the positioning support column 6 by bolts. The load-bearing ring 7 has an arc-shaped structure and is made of 316L stainless steel by stamping. Both sides of the load-bearing ring 7 are integrally formed with connecting ears 701, and one side of the connecting ear 701 is provided with a plug groove 702, and one side of the load-bearing ring 7 is provided with multiple positioning grooves 703. The bottom of the load-bearing ring 7 is welded with a reinforcing rib 8, which is an arc-shaped structure and is embedded with the top of the positioning support column 6. The load-bearing clamp 5 is provided with fixing bolts 9 on both sides, and the fixing bolts 9 pass through the load-bearing clamp 5 and the positioning block 3 in sequence. The insertion groove 702 is inserted into the top of the fixing bolt 9, and the load-bearing clamp 5, the positioning block 3 and the load-bearing ring 7 are fixed by the fixing bolts 9. The protective component includes two arc-shaped mounting frames 10, with multiple reinforcing rods 11 welded between the mounting frames 10. The outer surface of the reinforcing rods 11 is welded with a protective mesh 12. The mesh size of the protective mesh 12 is 8-15mm and the thickness is 1.5-3mm. It can withstand static impacts of more than 100kg, thus dispersing the load and avoiding direct pressure on the insulation layer. The inner side of the mounting frames 10 is integrally formed with positioning pins 13, which are inserted into the positioning grooves 703. The quick-release assembly includes a locking pin 14 that penetrates and connects to the positioning pin 13 and one side of the mounting frame 10. The locking pin 14 engages with the connecting slot 601. The top two sides of the reinforcing rod 11 are bolted to a first housing 17 and a second housing 19. The locking pin 14 slides within the first housing 17. A guide shaft 15 is welded to one side of the locking pin 14, and a spring 16 is fitted onto the outer surface of the guide shaft 15. One side of the spring 16 is bolted to one end of the locking pin 14, and the other end of the spring 16 is bolted to the inner wall of one side of the first housing 17. A conical head 18 is welded to one end of the shaft 15 that passes through the first housing 17, and the conical head 18 slides inside the second housing 19. A pressing block 20 is inserted through the top of the reinforcing rod 11, and the pressing block 20 is located on one side of the conical head 18. An arc groove 21 is opened on one side of the top of the pressing block 20, and one side of the arc groove 21 contacts the outer wall of the conical head 18. A handle 22 is inserted through one side of the reinforcing rod 11, and a limit block 23 is fixed to the bottom of the handle 22 by bolts. The other end of the handle 22 is fixed to the top of the pressing block 20 by bolts.

[0018] The working principle of this embodiment is as follows: When it is necessary to insulate the branch pipe, the elastic buffer pad 1 is first put on the outside of the branch pipe body 2 through the first Velcro 101. At the same time, the positioning blocks 3 on both sides of the branch pipe body 2 pass through the elastic buffer pad 1. Then, multiple insulation sleeves 4 are wrapped around the branch pipe body 2 through the third Velcro 401. At the same time, the two ends of the insulation sleeves 4 are glued to the second Velcro 102 on the elastic buffer pad 1, thereby achieving insulation of the branch pipe and completing the installation of the buffer insulation component. When it is necessary to prevent trampling on the insulation layer of the branch pipe, firstly, the fixing bolt 9 is passed through the load-bearing clamp 5 and the positioning block 3 in sequence. Then, the insertion groove 702 on the load-bearing ring 7 is inserted from one side of the fixing bolt 9. At this time, the positioning support column 6 is embedded with the reinforcing rib 8. Finally, the positioning support column 6 and the load-bearing ring 7 are fixed with bolts. The positioning support column 6 provides support, and the arc-shaped load-bearing clamp 5 and the load-bearing ring 7 increase the contact area with the elastic buffer pad 1, which can fully disperse the pressure of trampling and avoid damage to the elastic buffer pad 1 caused by trampling pressure. Then, the positioning pin 13 on the mounting frame 10 is inserted along the positioning groove 703 on the load-bearing ring 7. During the insertion process, the locking pin 14 in the positioning groove 703 is subjected to pressure and extends and retracts backward. After continuous downward pressure, the locking pin 14 is engaged with the connecting groove 601, thereby completing the installation of the protective component. When it is necessary to inspect or repair the branch pipe or insulation sleeve 4, the modular protective components need to be removed. Simply pull the 22 on both sides of the protective net 12 to lift it upwards. The squeezing block 20 will then move upwards, squeezing one side of the conical head 18. The conical head 18 will then pull the guide shaft 15 and the locking pin 14 to slide to one side, thereby disengaging the locking pin 14 from the connecting slot 601. The protective components can then be easily removed for inspection and repair.

[0019] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.

[0020] In the description herein, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced anti-trampling load-bearing device for heat insulation of fuel branch pipes in gas turbines, comprising a branch pipe body, characterized in that, The outer side of the branch pipe body is provided with a buffer insulation component, the top of the buffer insulation component is provided with a load-bearing component, the top of the load-bearing component is provided with a protective component, and quick-release components are provided on both sides of the protective component.

2. The anti-trampling reinforced load-bearing device for heat preservation of gas turbine fuel branch pipe according to claim 1, characterized in that, The buffer insulation component includes an elastic buffer pad wrapped around the outside of the branch pipe body, and the two ends of the elastic buffer pad are provided with first Velcro. The two sides of the elastic buffer pad are provided with grooves, and second Velcro is sewn into the grooves.

3. The anti-trampling reinforced load-bearing device for heat preservation of gas turbine fuel branch pipe according to claim 2, characterized in that, The buffer insulation component includes an elastic buffer pad wrapped around the outside of the branch pipe body, and the two ends of the elastic buffer pad are provided with first Velcro to fix the elastic buffer pad. The elastic buffer pad has grooves on both sides, and second Velcro is sewn into the grooves. The outside of the branch pipe body is provided with an insulation sleeve, and two adjacent insulation sleeves are sewn into one side with third Velcro, and the third Velcro is staggered. The two ends of the inner side of the insulation sleeve are bonded to the second Velcro.

4. The anti-trampling reinforced load-bearing device for heat preservation of gas turbine fuel branch pipe according to claim 3, characterized in that, The load-bearing component includes a load-bearing clamp sleeved on the outside of the elastic buffer pad. A positioning support column is fixedly connected to the top of the load-bearing clamp, and a connecting slot is opened on one side of the positioning support column. A load-bearing ring is fixedly connected to the top of the positioning support column. The load-bearing ring has an arc-shaped structure. Connecting ears are integrally formed on both sides of the load-bearing ring, and an insertion slot is opened on one side of the connecting ears. Multiple positioning slots are opened on one side of the load-bearing ring. A reinforcing rib is fixedly connected to the bottom of the load-bearing ring. The reinforcing rib is an arc-shaped mechanism and is embedded with the top of the positioning support column.

5. The anti-trampling reinforced bearing device for heat preservation of gas turbine fuel branch pipe according to claim 4, characterized in that, The load-bearing clamp has fixing bolts on both sides, and the fixing bolts pass through the load-bearing clamp and the positioning block in sequence. The insertion slot is inserted into the top of the fixing bolt, and the load-bearing clamp, the positioning block and the load-bearing ring are fixed by the fixing bolt.

6. The anti-trampling reinforced load-bearing device for heat preservation of gas turbine fuel branch pipe according to claim 1, characterized in that, The protective assembly includes two arc-shaped mounting frames, with multiple reinforcing rods fixedly connected between the mounting frames. A protective net is fixedly connected to the outer surface of each reinforcing rod. The inner side of each mounting frame is integrally formed with a positioning pin, which is inserted into a positioning groove.

7. The anti-trampling reinforced load-bearing device for heat preservation of gas turbine fuel branch pipe according to claim 6, characterized in that, The quick-release assembly includes a locking pin that penetrates and is inserted into the positioning pin and one side of the mounting frame. The locking pin engages with the connecting slot. A first housing and a second housing are fixedly connected to both sides of the top of the reinforcing rod. The locking pin slides within the first housing. A guide shaft is fixedly connected to one side of the locking pin, and a spring is sleeved on the outer surface of the guide shaft. One side of the spring is fixedly connected to one end of the locking pin, and the other end of the spring is fixedly connected to the inner wall of one side of the first housing. A tapered head is fixedly connected to one end of the guide shaft that passes through the first housing, and the tapered head slides within the second housing. A pressing block is inserted through the top of the reinforcing rod, and the pressing block is located on one side of the tapered head. An arc-shaped groove is formed on one side of the top of the pressing block, and one side of the arc-shaped groove contacts the outer wall of the tapered head. A handle is inserted through one side of the reinforcing rod, and a limit block is fixedly connected to the bottom of the handle. The other end of the handle is fixedly connected to the top of the pressing block.

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