Shell sleeving device and method for coiled pipe high-pressure heater pipe system and barrel

Abstract

The invention discloses a shell sleeving device and method for a coiled pipe high-pressure heater pipe system and a barrel. The device comprises a shoe-shaped gold ingot platform on a heavy steel rail, a barrel, a header supporting frame and a pipe system supporting frame are placed on the shoe-shaped gold ingot platform, a pipe system and a header are arranged on a sleeve shell platform, the shoe-shaped gold ingot platform is pushed by a thruster oil cylinder to move towards the pipe system, and the pipe system supporting frame and the header supporting frame are continuously dismantled in the process that the barrel on the shoe-shaped gold ingot platform gets close to the pipe system. And the casing is completed until the pipe system completely enters the cylinder body. According to the shell sleeving device, the shell sleeving work of the barrel and the pipe system in the manufacturing process of the coiled pipe high-pressure heater is completed, the hoisting work is reduced, the shell sleeving safety is improved, the problem that in a traditional method, the shell sleeving coaxiality is difficult to guarantee is solved, the skill level requirement of operators is lowered, the shell sleeving process is simple, certain universality is achieved, and the shell sleeving device is suitable for popularization and application. Only the shoe-shaped gold ingot platform or the pipe system supporting frame and the header supporting frame need to be properly heightened, the device can be used for casing of coiled pipe high-pressure heater pipe systems and barrels of multiple specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of the manufacture of serpentine high-pressure heaters, and particularly to a casing device and method for the pipe system and cylinder body of a serpentine high-pressure heater. Background Art

[0002] High-pressure heaters are widely used in thermal systems such as thermal power plants and nuclear power plants. Their function is to increase the feed water temperature of the boiler, thereby improving the thermal efficiency of the power plant and reducing fuel consumption. They have become an essential energy-saving device in modern power plants. The serpentine high-pressure heater is one type of high-pressure heater, and its core components include a cylinder body, a pair of cylindrical headers, a serpentine heat exchange pipe system (hereinafter referred to as the pipe system), a cladding plate, a head, and a safety device. During the manufacturing process of the serpentine high-pressure heater, after the pipe system and the header are assembled, the cylinder body needs to be sleeved outside the pipe system. The casing of the pipe system and the cylinder body is difficult. The traditional method is to lift the cylinder body by a winch and perform casing with the fixed pipe system; or lift the pipe system by a winch and perform casing with the fixed cylinder body. This method involves hoisting, which requires a large hoisting device, a high level of ability for hoisting personnel, and strict requirements for the hoisting site. At the same time, during the casing process, it is necessary to continuously adjust the hoisted pipe system or cylinder body manually to ensure the coaxiality of the casing. There are significant safety hazards during the manual adjustment process. Summary of the Invention

[0003] To solve the above technical problems, the present invention designs a casing device and method for the pipe system and cylinder body of a serpentine high-pressure heater.

[0004] The present invention adopts the following technical solutions: A casing device for the pipe system and cylinder body of a serpentine high-pressure heater, comprising a base, a header, a serpentine heat exchange pipe system, and a cylinder body. A casing platform is fixedly installed on the base, and a heavy-duty steel rail is installed on the casing platform. A Yuanbao platform that can move along the heavy-duty steel rail is installed on one side of the heavy-duty steel rail, and the cylinder body is placed on the Yuanbao platform. A header support frame and a pipe system support frame are correspondingly installed on the casing platform on the other side of the heavy-duty steel rail. The header support frame and the pipe system support frame correspondingly support and place the header and the serpentine heat exchange pipe system. A rail clamp is installed on the heavy-duty steel rail, and a thrust cylinder is installed on the rail clamp. The thrust cylinder contacts and pushes the Yuanbao platform. Sliding rails are respectively arranged on both sides of the upper and lower ends of the cylinder body corresponding to the serpentine heat exchange pipe system. The sliding rails are used for the support and positioning after the serpentine heat exchange pipe system is sleeved into the cylinder body.

[0005] Preferably, the sliding rails are L-shaped, and pulleys are respectively arranged on the upper and lower ends of the serpentine heat exchange pipe system corresponding to the horizontal and vertical positions of the sliding rails. The pulleys cooperate and slide along the sliding rails. This reduces the friction during casing and makes the casing process smoother.

[0006] Preferably, there are two ingot platforms, which are fixedly connected together by H-shaped steel. When the thruster cylinder pushes one of the ingot platforms, the other ingot platform will also move accordingly.

[0007] Preferably, lifting lugs are installed on both sides of the casing platform for convenient transportation.

[0008] Preferably, the base is composed of H-shaped steel and rib plates and is used to level the ground.

[0009] Preferably, rollers are provided at the bottom of the ingot platform, which cooperate with heavy-duty steel rails and move along the heavy-duty steel rails.

[0010] Preferably, a plurality of rib plates are provided inside the base.

[0011] Preferably, the support for placing the header and the serpentine heat exchange tube system is arranged coaxially with the cylinder body.

[0012] A method for sleeving a serpentine tube high-pressure heater tube system and a cylinder body, the method steps are as follows: S1. Place the base on the ground, and place the casing platform on the base to ensure that the casing platform is horizontal; S2. Install a tube system support frame and a header support frame on the casing platform, and place the serpentine heat exchange tube system and the header on the tube system support frame and the header support frame; S3. Install two parallel heavy-duty steel rails on the casing platform, place two ingot platforms on the rails, and the two ingot platforms need to be connected together. Place the cylinder body on the ingot platforms; S4. Install rail clamps on the heavy-duty steel rails and fix the thruster cylinder on the rail clamps; S5. Start the thruster cylinder. The thruster cylinder pushes the ingot platform on the heavy-duty steel rails to move towards the serpentine heat exchange tube system. During the process of the cylinder body on the ingot platform approaching the serpentine heat exchange tube system, continuously remove the tube system support frame and the header support frame until the serpentine heat exchange tube system completely enters the cylinder body, completing the sleeving.

[0013] The beneficial effects of the present invention are as follows: The present invention completes the sleeving work of the cylinder body and the tube system during the manufacturing process of the serpentine tube high-pressure heater, reduces the lifting operation, improves the safety of sleeving, solves the pain point of difficult to ensure the coaxiality of sleeving in the traditional method, reduces the skill level requirements of operators, the sleeving process is simple, and at the same time has a certain versatility. By simply raising the ingot platform or the tube system support frame and the header support frame appropriately, it can be used for the sleeving of serpentine tube high-pressure heater tube systems and cylinder bodies of multiple specifications. Brief Description of the Drawings

[0014] Figure 1 is the overall schematic diagram of the present invention; Figure 2is a side schematic view of the present invention; Figure 3 is a schematic view of the thruster cylinder part of the present invention; Figure 4 is a schematic view of the pipe system pulley and the cylinder slide rail of the present invention; Figure 5 is a schematic view at the start of the casing of the present invention; Figure 6 is schematic view A during the casing process of the present invention; Figure 7 is schematic view B during the casing process of the present invention; Figure 8 is a schematic view after the casing of the present invention is completed; In the figure: 1. Header support frame, 2. Base, 3. Rib plate, 4. Lifting lug, 5. Casing platform, 6. Serpentine heat exchange pipe system, 7. Pulley, 8. Pipe system support frame, 9. Heavy rail, 10. Ingot platform, 11. Cylinder, 12. Slide rail, 13. H-shaped steel, 14. Thruster cylinder, 15. Rail clamp Specific embodiments

[0015] The technical solution of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings: Embodiment: As Figure 1 shown, a casing device for a serpentine tube high-pressure heater pipe system and a cylinder includes a base 2, a header, a serpentine heat exchange pipe system 6, and a cylinder 11. A casing platform 5 is fixedly installed on the base. A heavy rail 9 is installed on the casing platform. An ingot platform 10 that can move along the heavy rail 9 is installed on one side of the heavy rail 9. The cylinder 11 is placed on the ingot platform 10. A header support frame 1 and a pipe system support frame 8 are correspondingly installed on the casing platform 5 on the other side of the heavy rail 9. The header support frame 1 and the pipe system support frame 8 correspondingly support and place the header and the serpentine heat exchange pipe system 6. A rail clamp 15 is installed on the heavy rail 9. A thruster cylinder 14 is installed on the rail clamp 15. The thruster cylinder 14 contacts and pushes the ingot platform 10. Slide rails 12 are respectively arranged on both sides of the upper and lower ends of the serpentine heat exchange pipe system 6 in the cylinder 11.

[0016] The device drives the cylinder 11 to complete the casing by pushing the ingot platform 10 on the heavy rail 9 through the thruster cylinder 14. The ingot platforms 10 are connected together by H-shaped steels 13. The header support frame 1 and the pipe system support frame 8 place the serpentine heat exchange pipe system and the header 6 on the casing platform 5.

[0017] As Figure 2As shown, there are multiple rib plates 3 inside the base 2 to enhance the strength of the base 2 and reduce deformation. Lifting lugs 4 are provided on both sides of the casing platform 5 for lifting and other operations during transportation. When the cylinder body 11 placed on the ingot platform 10 and the serpentine heat exchange tube system 6 and the header installed on the header support frame 1 and the pipe system support frame 8 are sleeved in the casing, a certain coaxiality needs to be maintained.

[0018] As Figure 3 shown, the thruster cylinder 14 is connected to the heavy rail 9 through the rail clamp 15, and the thruster cylinder 14 can push the ingot platform 10 on the heavy rail 9.

[0019] As Figure 4 shown, the cylinder body 11 is provided with a slide rail 12 inside, and pulleys 7 need to be installed at the contact part of the serpentine heat exchange tube system 6 and the slide rail 12. On the one hand, it can reduce the friction during casing, and on the other hand, it can be limited by the contact between the slide rail 12 and the pulley 7 to maintain the coaxiality during the casing process.

[0020] As Figure 5 shown, this figure shows the position of the serpentine heat exchange tube system 6 and the housing 11 at the beginning of casing.

[0021] As Figure 6 shown, this figure shows that as the casing progresses, the header support frame 1 is gradually removed, and the serpentine heat exchange tube system 6 continuously enters the inside of the cylinder body 11.

[0022] As Figure 7 shown, this figure shows that as the casing progresses, the pipe system support frame 8 is gradually removed, and most of the serpentine heat exchange tube system 6 has entered the inside of the cylinder body 11.

[0023] As Figure 8 shown, the serpentine heat exchange tube system 6 has completely entered the inside of the cylinder body 11, and the casing is completed.

[0024] Process description of the method for sleeving the tube system and cylinder body of a serpentine tube high-pressure heater: This method uses a thruster cylinder to push the ingot platform on the heavy rail towards the serpentine heat exchange tube system. During the process of the cylinder body on the ingot platform approaching the serpentine heat exchange tube system, the tube support frame and the header support frame are continuously removed until the serpentine heat exchange tube system completely enters the cylinder body, completing the sleeving. First, place a base on the ground, and place a sleeving platform on the base to ensure the sleeving platform is level. Then, install a tube support frame, a header support frame, and two parallel heavy rails on the sleeving platform, place the tube system on the tube support frame and the header support frame, place two ingot platforms on the heavy rails, connect them with H-shaped steel, and fix the cylinder body on the ingot platform. Install rail clamps on the heavy rails, and finally fix the thruster cylinder on the rail clamps to complete the preparation work for the sleeving plan. After the preparation work is completed, use the thruster cylinder to push the ingot platform on the heavy rail, move the cylinder body on the ingot platform towards the serpentine heat exchange tube system until the serpentine heat exchange tube system completely enters the cylinder body, completing the sleeving.

[0025] The embodiments described above are only a preferred solution of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A casing device for a serpentine tube high-pressure heater tube system and a cylinder body, comprising a base, a header tank, a serpentine heat exchange tube system and a cylinder body, characterized in that, A casing platform is fixedly installed on the base. A heavy-duty steel rail is installed on the casing platform. A shoe-shaped platform that can move along the heavy-duty steel rail is installed on one side of the heavy-duty steel rail. A cylinder body is placed on the shoe-shaped platform. A header support frame and a pipe system support frame are correspondingly installed on the casing platform on the other side of the heavy-duty steel rail. The header support frame and the pipe system support frame correspondingly support and place a header and a serpentine heat exchange pipe system. A rail clamp is installed on the heavy-duty steel rail. A thruster oil cylinder is installed on the rail clamp. The thruster oil cylinder contacts and pushes the shoe-shaped platform. Slide rails are respectively arranged on both sides of the upper and lower ends of the cylinder body corresponding to the serpentine heat exchange pipe system.

2. The sheathing device of the serpentine tube high-pressure heater tube system and the cylinder according to claim 1, characterized in that, The slide rails are L-shaped. Pulleys are respectively arranged on the upper and lower ends of the serpentine heat exchange pipe system corresponding to the horizontal and vertical positions of the slide rails. The pulleys slide in cooperation with the slide rails.

3. The casing device for the coiled tube high-pressure heater tube system and the cylinder according to claim 1, characterized in that, There are two shoe-shaped platforms, and the two shoe-shaped platforms are fixedly connected together by H-shaped steel.

4. The sheathing device of the serpentine tube high-pressure heater tube system and the cylinder according to claim 1, characterized in that, Lifting lugs are installed on both sides of the casing platform.

5. A sheathing device for a serpentine tube high-pressure heater tube system and a cylinder according to claim 1, characterized in that, The base is composed of H-shaped steel and rib plates.

6. The sheathing device of the serpentine tube high-pressure heater tube system and the cylinder according to claim 1, characterized in that, Rollers are arranged at the bottom of the shoe-shaped platform, and the shoe-shaped platform is matched with the heavy-duty steel rail through the rollers and moves along the heavy-duty steel rail.

7. A casing device for a serpentine tube high-pressure heater tube system and a cylinder according to claim 5, characterized in that, A plurality of rib plates are arranged inside the base.

8. A casing device for a serpentine tube high-pressure heater tube system and a cylinder according to claim 1, characterized in that, The support for placing the header and the serpentine heat exchange pipe system is coaxially arranged with the cylinder body.

9. A method for sheathing a serpentine tube high-pressure heater tube system and a cylinder body according to any one of claims 1-8, characterized in that, The method steps are as follows: S1. Place the base on the ground, and place the casing platform on the base to ensure that the casing platform is horizontal. S2. Install a pipe system support frame and a header support frame on the casing platform, and place the serpentine heat exchange pipe system and the header on the pipe system support frame and the header support frame. S3. Install two parallel heavy-duty steel rails on the casing platform, place two shoe-shaped platforms on the steel rails, and the two shoe-shaped platforms need to be connected together. Place the cylinder body on the shoe-shaped platforms. S4. Install a rail clamp on the heavy-duty steel rail, and fix the thruster oil cylinder on the rail clamp. S5. Start the thruster oil cylinder. The thruster oil cylinder pushes the shoe-shaped platform on the heavy-duty steel rail to move towards the serpentine heat exchange pipe system. During the process of the cylinder body on the shoe-shaped platform approaching the serpentine heat exchange pipe system, continuously remove the pipe system support frame and the header support frame until the serpentine heat exchange pipe system completely enters the cylinder body, and the casing is completed.

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