A new type of tubular heat exchanger for high-temperature boilers

Abstract

The utility model discloses a novel tubular heat exchanger for high temperature boiler relates to heat exchanger technical field, including the shell and the symmetrical seat of shell bottom installation, the inside one end of shell is provided with the tube sheet, be provided with a plurality of connecting holes on the tube sheet, all be provided with U -shaped pipe at connecting hole position on the tube sheet, every connecting hole position one side all is provided with the threaded cylinder, every threaded cylinder one end all is installed with first rotary drum, every connecting hole position other side all is provided with the tapered cylinder, every tapered cylinder one end all is installed with second rotary drum, every U -shaped pipe one end outside all is provided with spiral connection thread, and the outside of tapered cylinder is rubber layer, and the connecting hole of having elasticity and tube sheet is abutted and can realize sealing effect, the tapered cylinder and threaded cylinder of this design mutually cooperate and use, realize the insertion joint installation of U -shaped pipe on the tube sheet, do not need to weld, and the U -shaped pipe installation and dismounting are convenient.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a novel tubular heat exchanger for high-temperature boilers. Background Technology

[0002] High-temperature boilers are thermal energy devices that can heat water to a high temperature (typically, the outlet water temperature is >120℃). They are widely used in power, industry, heating and other fields. High-temperature boilers convert chemical energy or electrical energy into thermal energy through fuel combustion or electrical energy conversion, and transfer the heat to the water through the heating surface, raising its temperature to a high temperature. Tubular heat exchangers are industrial devices that realize heat transfer between fluids by enclosing tube bundles in a closed shell. Their core structure includes three main parts: shell, tube bundle and baffles. They achieve efficient heat exchange through heat conduction through the tube wall and convection of the fluid.

[0003] In the use of existing technologies, tubular heat exchangers for high-temperature boilers need to achieve efficient and stable heat transfer under extreme operating conditions. The tube bundles and tube sheets inside the tubular heat exchangers are mostly welded and fixed, which is inconvenient for disassembly, replacement and installation. Therefore, a new type of tubular heat exchanger for high-temperature boilers is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel tubular heat exchanger for high-temperature boilers, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a shell and supports symmetrically installed at the bottom of the shell. A tube plate is provided at one end of the interior of the shell. Multiple connection holes are provided on the tube plate. U-shaped tubes are provided at the connection hole positions on the tube plate. A threaded cylinder is provided on one side of each connection hole position. A first rotating cylinder is installed at one end of each threaded cylinder. A conical cylinder is provided on the other side of each connection hole position. A second rotating cylinder is installed at one end of each conical cylinder. A spiral connection pattern is provided on the outer side of one end of each U-shaped tube.

[0006] As a further technical solution of this utility model, one end of each U-shaped tube is inserted into the connection hole of the tube sheet, and each threaded cylinder is provided with a spiral connection hole that matches the spiral connection pattern inside.

[0007] As a further technical solution of this utility model, each of the conical cylinders is provided with a threaded hole that is compatible with the threaded cylinder, and the conical cylinder and the threaded cylinder are threadedly connected.

[0008] As a further technical solution of this utility model, the threaded cylinder is threadedly connected to the U-shaped tube, and the U-shaped tube is connected to the tube sheet through the threaded cylinder and the tapered cylinder.

[0009] As a further technical solution of this utility model, the U-shaped tube is provided with multiple baffles, and a second pipe is installed at the bottom of the other end of the shell.

[0010] As a further technical solution of this utility model, a connecting flange is provided at one end of the shell, a pipe box is provided on the connecting flange, and first connecting pipes are symmetrically arranged on the pipe box.

[0011] This utility model provides a novel tubular heat exchanger for high-temperature boilers, which has the following advantages compared with the prior art:

[0012] This design presents a novel tubular heat exchanger for high-temperature boilers. It utilizes a threaded cylinder, a first and second rotating cylinder, and a conical cylinder. The threaded and conical cylinders are interconnected to secure the U-shaped tube to a tube sheet. The first and second rotating cylinders facilitate rotation of both the threaded and conical cylinders. The first and second rotating cylinders are positioned opposite each other on opposite sides of the tube sheet, clamping together to facilitate the insertion and installation of the U-shaped tube. The outer surface of the conical cylinder is lined with a rubber layer, providing elasticity and abutting against the connection holes in the tube sheet for a sealing effect. The combined use of the conical and threaded cylinders allows for the insertion and installation of the U-shaped tube onto the tube sheet without welding, simplifying installation and disassembly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a novel tubular heat exchanger for high-temperature boilers.

[0014] Figure 2 This is a schematic diagram of the tube sheet and U-tube structure of a novel tubular heat exchanger for high-temperature boilers.

[0015] Figure 3 A schematic diagram of the threaded cylinder structure of a novel tubular heat exchanger for high-temperature boilers;

[0016] Figure 4 This is a schematic diagram of the internal structure of a conical tube heat exchanger for a novel high-temperature boiler.

[0017] In the diagram: 1. Shell; 2. Support; 3. Tube box; 4. First connecting pipe; 5. Connecting flange; 6. Second connecting pipe; 7. Tube sheet; 8. U-tube; 9. Baffle plate; 10. First rotating cylinder; 11. Second rotating cylinder; 12. Threaded cylinder; 13. Spiral connection; 14. Connecting hole; 15. Conical cylinder; 16. Threaded hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a novel tubular heat exchanger for high-temperature boilers, including a shell 1 and supports symmetrically installed at the bottom of the shell 1. A tube sheet 7 is provided at one end of the shell 1, and a second connecting pipe 6 is installed at the bottom of the other end of the shell 1. A connecting flange 5 is provided at one end of the shell 1, and a tube box 3 is provided on the connecting flange 5. A first connecting pipe 4 is symmetrically arranged on the tube box 3. A plurality of connecting holes 14 are provided on the tube sheet 7, and a U-shaped tube 8 is provided at each of the connecting holes 14 on the tube sheet 7. A plurality of baffles 9 are provided on the U-shaped tube 8.

[0020] A threaded cylinder 12 is provided on one side of each connection hole 14, and a first rotating cylinder 10 is installed at one end of each threaded cylinder 12. A conical cylinder 15 is provided on the other side of each connection hole 14. The outer surface of the conical cylinder 15 is a rubber layer. When the conical cylinder 15 is connected to the threaded cylinder 12, the outer rubber layer abuts against the connection hole 14 on the tube sheet 7 to achieve a sealing effect. A second rotating cylinder 11 is installed at one end of each conical cylinder 15. A spiral connection pattern 13 is provided on the outer side of one end of each U-shaped tube 8. One end of each U-shaped tube 8 is inserted into the connection hole 14 of the tube sheet 7. The interior of each threaded cylinder 12 is provided with a spiral connection pattern 13. The conical cylinder 15 has a threaded hole 16 inside that matches the threaded cylinder 12. The conical cylinder 15 is threadedly connected to the threaded cylinder 12, and the threaded cylinder 12 is threadedly connected to the U-shaped tube 8. The U-shaped tube 8 is connected to the tube sheet 7 through the threaded cylinder 12 and the conical cylinder 15. The conical cylinder 15 is sleeved on one end of the U-shaped tube 8, and one end of the U-shaped tube 8 is inserted into the connection hole 14 on the tube sheet 7. The spiral connection pattern 13 on the U-shaped tube 8 is located inside the connection hole 14. The threaded cylinder 12 is connected to the spiral connection pattern 13 on the outside of the U-shaped tube 8. Then, the conical cylinder 15 is connected to the threaded cylinder 12, and the U-shaped rod 8 is connected and installed to the tube sheet 7.

[0021] The working principle of this utility model is as follows: a conical cylinder 15 is sleeved on one end of a U-shaped tube 8, and one end of the U-shaped tube 8 is inserted into the connecting hole 14 on the tube sheet 7. The spiral connecting pattern 13 on the U-shaped tube 8 is located inside the connecting hole 14. The threaded cylinder 12 is inserted into the connecting hole 14, and the threaded cylinder 12 is connected to the spiral connecting pattern 13 on the outside of the U-shaped tube 8. The first rotating cylinder 10 is rotated, and the threaded cylinder 12 is connected to the U-shaped tube 8. The conical cylinder 15 is moved, and the conical cylinder 15 abuts against the connecting hole 14. The second rotating cylinder 11 is rotated, and the conical cylinder 15 is connected to the threaded cylinder 12, thereby connecting and installing the U-shaped tube 8 and the tube sheet 7.

[0022] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A novel tubular heat exchanger for high-temperature boilers, comprising a shell (1) and supports (2) symmetrically mounted at the bottom of the shell (1), characterized in that, The shell (1) has a tube plate (7) at one end inside. The tube plate (7) has multiple connecting holes (14). A U-shaped tube (8) is provided at each of the connecting holes (14) on the tube plate (7). A threaded cylinder (12) is provided on one side of each connecting hole (14). A first rotating cylinder (10) is installed at one end of each threaded cylinder (12). A conical cylinder (15) is provided on the other side of each connecting hole (14). A second rotating cylinder (11) is installed at one end of each conical cylinder (15). A spiral connecting thread (13) is provided on the outer side of one end of each U-shaped tube (8).

2. The novel tubular heat exchanger for high-temperature boilers according to claim 1, characterized in that, One end of each U-shaped tube (8) is inserted into the connecting hole (14) of the tube sheet (7), and each threaded cylinder (12) is provided with a spiral connecting hole that matches the spiral connecting pattern (13).

3. A novel tubular heat exchanger for high-temperature boilers according to claim 1, characterized in that, Each of the tapered cylinders (15) has a threaded hole (16) inside that is adapted to the threaded cylinder (12), and the tapered cylinder (15) is threadedly connected to the threaded cylinder (12).

4. A novel tubular heat exchanger for high-temperature boilers according to claim 1, characterized in that, The threaded cylinder (12) is threadedly connected to the U-shaped tube (8), and the U-shaped tube (8) is connected to the tube sheet (7) through the threaded cylinder (12) and the tapered cylinder (15).

5. A novel tubular heat exchanger for high temperature boilers as claimed in claim 1, wherein The U-shaped tube (8) is provided with multiple baffles (9), and a second pipe (6) is installed at the bottom of the other end of the housing (1).

6. A novel tubular heat exchanger for high temperature boilers as claimed in claim 5 wherein, One end of the housing (1) is provided with a connecting flange (5), and a pipe box (3) is provided on the connecting flange (5). First connecting pipes (4) are symmetrically arranged on the pipe box (3).

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