Winding pipe type heat exchange boiler

Abstract

The invention relates to the technical field of boiler heat exchangers, in particular to a winding pipe type heat exchange boiler which comprises a shell assembly, a heat exchanger assembly arranged in the shell assembly and an air bag located at the top of the shell assembly. The heat exchanger assembly is installed between the air inlet pipe and the exhaust pipe and fixedly installed on the inner wall of the shell assembly. According to the winding pipe type heat exchange boiler, through the arrangement of the stirring assembly, the purpose of improving the heat exchange efficiency of the heat exchange coil pipe is achieved, and the effects of reducing the impact force of water pressure on the heat coil pipe and improving the stability of the heat coil pipe are achieved through the conical turbine and the buffer assembly; the auxiliary damping assembly, the limiting support and the damping pad can reduce water flow impact borne by the heat exchange coil pipe and reduce vibration generated when bubbles are generated and disappear to a certain degree, and the purposes of double damping of the heat exchange coil pipe and adjustable damping capacity of the heat exchange coil pipe are achieved.

Description

Technical Field

[0001] This invention relates to the field of boiler heat exchanger technology, specifically to a wound tube heat exchange boiler. Background Technology

[0002] A heat exchanger is an energy-saving device that facilitates heat transfer between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, bringing the fluid temperature to the specified parameters to meet process requirements. It is also a key component for improving energy efficiency and plays a vital role in chemical, petroleum, power, food, and many other industrial production processes. Spiral coil heat exchangers offer unparalleled advantages over ordinary shell-and-tube heat exchangers, including a wide applicable temperature range, adaptability to thermal shock, self-relief of thermal stress, and high compactness. Due to its unique structure, it allows for full flow field development without dead zones, making it a highly efficient and compact heat exchanger. It not only utilizes waste heat but also plays a crucial role in energy conservation and environmental protection.

[0003] A tube bundle wound heat exchanger disclosed in Chinese utility model patent application CN216954180U has the effect of cleaning scale inside the heat exchanger and enhancing its sealing performance. However, common heat exchangers generally do not have a deceleration mechanism. In a boiler, steam is generated, resulting in a large internal pressure. The water supply also needs to be at a high pressure. As the water pressure increases, the water flow velocity also increases. The resulting impact force will cause a large impact on the heat exchange coil inside the boiler, which can easily cause deformation of the heat exchange coil.

[0004] A shock-resistant wound tube heat exchanger disclosed in Chinese Utility Model Patent Application Publication CN220288312U, although it uses spacer buffers and external buffers to buffer the vibration of the heat exchange tubes and improve their service life, still causes the surrounding water to boil and generate bubbles during heat exchange. When these bubbles break, they also cause vibration to the heat exchange coils, which still has a certain negative impact on the heat exchange tubes. Moreover, this vibration is a long-term continuous vibration that is not easy to eliminate or reduce. In addition, the water in the boiler is generally not moving, so only the water near the heat exchange tubes boils, while the water far away from the heat exchange tubes generally absorbs less heat, which will reduce the heat exchange efficiency.

[0005] Existing spiral wound tube heat exchanger boilers generally have the following defects: low heat exchange efficiency, large impact force of water flow on heat exchange tubes, which can easily cause deformation of heat exchange tubes, and large vibrations that can increase stress at the joints of heat exchange tubes, thus reducing the service life of heat exchange tubes. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a wound tube heat exchange boiler that improves heat exchange efficiency, reduces water flow impact force, and reduces heat exchange tube vibration. This solves the problems mentioned in the background technology, such as low heat exchange efficiency, large water flow impact force on heat exchange tubes, easy deformation of heat exchange tubes, and vibration of heat exchange tubes caused by air bubbles during operation.

[0007] (II) Technical Solution To achieve the aforementioned effects of improving heat exchange efficiency, reducing water flow impact, and reducing vibration of heat exchange tubes, the present invention provides the following technical solution: a wound tube heat exchange boiler, comprising an outer shell assembly, a heat exchanger assembly disposed inside the outer shell assembly, and an air chamber located at the top of the outer shell assembly. An air inlet pipe and an air outlet pipe are respectively installed on the end caps at both ends of the outer shell assembly. The heat exchanger assembly is installed between the air inlet pipe and the air outlet pipe, and the heat exchanger assembly is fixedly installed on the inner wall of the outer shell assembly. The air chamber is connected to the interior of the outer shell assembly, the air chamber is located in the middle of the outer shell assembly, and a steam exhaust pipe is provided on the top of the air chamber; The heat exchanger assembly consists of an air inlet chamber, an exhaust chamber, heat exchange coils, a water inlet pipe, and a water inlet chamber. The air inlet chamber and the exhaust chamber are located at both ends of the heat exchange coils and are connected to the heat exchange coils. Several heat exchange coils are provided and are arranged in a spiral shape. The air inlet chamber is located on the side near the air inlet pipe and is connected to the air inlet pipe. The exhaust chamber is located on the side near the exhaust pipe and is connected to the exhaust pipe. Both the air inlet chamber and the exhaust chamber are fixedly connected to the inner wall of the outer shell assembly.

[0008] Preferably, a limiting bracket is provided between adjacent heat exchange coils, the limiting bracket is abutting against the heat exchange coil, a shock-absorbing pad is provided between adjacent limiting brackets, and the two ends of the limiting bracket are respectively installed on the outer walls of the air inlet chamber and the air outlet chamber.

[0009] Preferably, the water inlet pipe is disposed on the inner wall of the air inlet chamber, the water inlet pipe is coaxially disposed with the air inlet chamber, one end of the water inlet pipe is disposed outside the outer casing assembly, the other end of the water inlet pipe is inserted into the interior of the water inlet chamber, the end of the water inlet chamber is configured as a flared mouth, a fixed cylinder is disposed between the air inlet chamber and the exhaust chamber, and several through grooves are formed on the outer wall of the fixed cylinder.

[0010] Preferably, the heat exchanger assembly is internally provided with a stirring assembly, which is coaxially arranged with the heat exchanger assembly. The stirring assembly consists of a front-end fixed frame, a drive shaft, turbine blades, a conical turbine, a coil spring, an auger blade, and a stirring blade. The front-end fixed frame is fixedly installed on the inner wall of the water inlet pipe. The drive shaft is rotatably connected to the front-end fixed frame. The turbine blades and the auger blade are both installed on the drive shaft. The turbine blade is located inside the water inlet pipe and is drively connected to the drive shaft. The conical turbine is located on the rear side of the turbine blade. The coil spring is located between the conical turbine and the drive shaft. The auger blade is installed on the outer surface of the drive shaft, and the stirring blade is installed at the outer edge of the auger blade.

[0011] Preferably, the housing assembly is provided with a buffer assembly inside. The buffer assembly is installed at the tail of the drive shaft. The buffer assembly consists of a buffer disc sleeved at the tail of the drive shaft, a rear end fixing frame that is connected to the tail of the drive shaft, and a buffer spring disposed between the buffer disc and the rear end fixing frame. The buffer disc is provided with several sets of pressure relief holes. The rear end fixing frame is fixedly installed on the outer wall of the exhaust chamber.

[0012] Preferably, the rear end fixing frame is provided with an auxiliary shock absorption assembly. The auxiliary shock absorption assembly consists of a slide groove formed on the rear end fixing frame, a limiting rod disposed inside the slide groove, a first sliding seat, a contact spring, a second sliding seat, and a top plate mounted on the second sliding seat. Several sets of the auxiliary shock absorption assembly are provided on the rear end fixing frame and are arranged in a circumferential array about the axis of the rear end fixing frame. The first sliding seat, the contact spring, and the second sliding seat are all slidably disposed on the limiting rod, and the contact spring is disposed between the first sliding seat and the second sliding seat. The limiting rod is fixedly installed on the inner wall of the slide groove.

[0013] Preferably, a connecting component is provided between the auxiliary damping component and the buffer component. The connecting component consists of a first hinge seat, a second hinge seat, and a connecting rod disposed between the first hinge seat and the second hinge seat. The first hinge seat is installed on the back of the buffer plate, and the second hinge seat is installed on the end of the first sliding seat.

[0014] Preferably, the bottom of the housing assembly is provided with a bottom bracket, the outer wall of the housing assembly is provided with a number of reinforcing rings, and the inner wall of the housing assembly is symmetrically distributed with a number of spoilers.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a wound tube heat exchange boiler, which has the following beneficial effects: 1. This spiral wound tube heat exchange boiler, through the setting of the stirring assembly, uses turbine blades to drive the drive shaft to rotate during use, causing the auger blades and stirring blades on the drive shaft to rotate, stirring the cooling water in the center of the shell assembly, so that the cooling water inside the shell assembly flows, thereby improving the heat exchange efficiency of the heat exchange coil.

[0016] 2. This spiral wound tube heat exchanger boiler, through the setting of a conical turbine and a buffer assembly, achieves dual deceleration of the supplied water during use. This reduces the impact of water pressure on the original water inside the outer shell assembly, thereby reducing the impact of water flow on the heat coil. This achieves the effect of reducing the impact force of water pressure on the heat coil and improving the stability of the heat coil itself.

[0017] 3. This spiral wound tube heat exchanger boiler, through the installation of auxiliary damping components, limiting brackets, and damping pads, provides static support and static vibration damping for the heat exchange coils during use. This reduces the impact of water flow on the heat exchange coils and reduces the vibration caused by the generation and disappearance of air bubbles to a certain extent. The auxiliary damping components can adjust the impact force of the water flow on the buffer plate according to the different water flow velocities during water supply, thereby adjusting the squeezing force of the top plate on the limiting bracket. This achieves the purpose of damping the limiting brackets with the auxiliary damping components, thereby reducing the vibration of the heat exchange coils and achieving the purpose of dual damping of the heat exchange coils and adjustable damping capacity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the internal cross-sectional three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the heat exchanger assembly of the present invention; Figure 4 This is a three-dimensional cross-sectional structural diagram of the heat exchanger assembly of the present invention; Figure 5 This is a schematic diagram of the connection structure of the stirring assembly, buffer assembly, and connecting assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the buffer component of the present invention; Figure 7 This is a schematic diagram of the connection structure of the stirring assembly of the present invention; Figure 8 This is a schematic diagram of the internal cross-sectional structure of the housing assembly of the present invention; Figure 9 For the present invention Figure 2 Enlarged structural diagram of section A in the middle; Figure 10 For the present invention Figure 4 A magnified structural diagram of section B.

[0019] In the diagram: 1. Outer shell assembly; 2. Air manifold; 3. Inlet pipe; 4. Exhaust pipe; 5. Inlet chamber; 6. Exhaust chamber; 7. Heat exchange coil; 8. Limiting bracket; 9. Shock-absorbing pad; 10. Water inlet pipe; 11. Water inlet chamber; 12. Front end fixing bracket; 13. Drive shaft; 14. Turbine blade; 15. Conical turbine; 16. Coil spring; 17. Screwdriver blade; 18. Stirring blade; 19. Buffer plate; 20. Rear end fixing bracket; 21. Pressure relief hole; 22. Buffer spring; 23. Slide groove; 24. Limiting rod; 25. First sliding seat; 26. Abutment spring; 27. Second sliding seat; 28. Top plate; 29. ​​First hinge seat; 30. Second hinge seat; 31. Connecting rod; 32. Baffle plate; 33. Steam exhaust pipe; 34. Reinforcing ring; 35. Bottom bracket; 36. Fixing cylinder. Detailed Implementation

[0020] 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.

[0021] For one embodiment of the present invention, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 A spiral wound tube heat exchange boiler includes an outer shell assembly 1, a heat exchanger assembly disposed inside the outer shell assembly 1, and an air tank 2 located at the top of the outer shell assembly 1. An air inlet pipe 3 and an air outlet pipe 4 are respectively installed on the end caps at both ends of the outer shell assembly 1. The heat exchanger assembly is installed between the air inlet pipe 3 and the air outlet pipe 4 and is fixedly installed on the inner wall of the outer shell assembly 1.

[0022] The air chamber 2 is connected to the interior of the outer casing assembly 1. The air chamber 2 is located in the middle of the outer casing assembly 1, and a steam exhaust pipe 33 is provided on the top of the air chamber 2.

[0023] The heat exchanger assembly consists of an air inlet chamber 5, an exhaust chamber 6, a heat exchange coil 7, a water inlet pipe 10, and a water inlet chamber 11. The air inlet chamber 5 and the exhaust chamber 6 are located at both ends of the heat exchange coil 7 and are connected to the heat exchange coil 7. Several heat exchange coils 7 are provided and are distributed in a spiral shape. The air inlet chamber 5 is located on the side near the air inlet pipe 3 and is connected to the air inlet pipe 3. The exhaust chamber 6 is located on the side near the exhaust pipe 4 and is connected to the exhaust pipe 4. Both the air inlet chamber 5 and the exhaust chamber 6 are fixedly connected to the inner wall of the outer shell assembly 1.

[0024] The bottom of the outer shell assembly 1 is provided with a bottom support 35, and a number of reinforcing rings 34 are provided on the outer wall of the outer shell assembly 1. A number of spoilers 32 are symmetrically distributed on the inner wall of the outer shell assembly 1.

[0025] Operating Procedure: During operation, cooling water is first supplied to the interior of the outer casing assembly 1. The cooling water enters through the inlet pipe 10 at the bottom of the heat exchanger assembly and then flows into the interior of the outer casing assembly 1 through the inlet pipe 10, completely submerging the heat exchange coils 7 on the heat exchanger assembly. Then, high-temperature gas is introduced into the heat exchanger assembly inside the outer casing assembly 1 through the air inlet pipe 3 on one side of the outer casing assembly 1. When the high-temperature gas enters the air inlet chamber 5, because the inlet pipe 10 is located inside the air inlet chamber 5, the high-temperature gas will first react with the outer wall of the inlet pipe 10. The gas comes into contact with the heat exchanger and is then cooled to reduce the thermal stress at the end of the heat exchanger coil 7. The high-temperature gas then enters multiple spiral heat exchanger coils 7. As the high-temperature gas flows through the heat exchanger coils 7, its own heat is absorbed by the cooling water outside the heat exchanger coils 7, achieving a heat exchange effect. This causes the cooling water near the outside of the heat exchanger coils 7 to absorb a large amount of heat, and the water close to the heat exchanger coils 7 enters a boiling state, generating water vapor. The water vapor enters the gas chamber 2 and is then discharged through the steam exhaust pipe 33.

[0026] Effects: This wound tube heat exchange boiler uses multiple heat exchange coils 7 to divert high-temperature gas, improving heat exchange efficiency. In addition, when the high-temperature gas enters the heat exchanger assembly, it is first cooled and slowed down to a certain extent by the outer wall of the inlet chamber 11, which prolongs the flow rate of the high-temperature gas in the heat exchange coils 7, further improving the heat exchange effect. Furthermore, the temperature difference stress caused by the cooled high-temperature gas at the end of the heat exchange coils 7 is also reduced, thereby improving the service life of the heat exchange coils 7.

[0027] As one embodiment of the present invention, please refer to Figure 3 , Figure 4 and Figure 10 Limiting brackets 8 are provided between adjacent heat exchange coils 7, and the limiting brackets 8 are abutting against the heat exchange coils 7. Shock-absorbing pads 9 are provided between adjacent limiting brackets 8. The two ends of the limiting brackets 8 are respectively installed on the outer walls of the air inlet chamber 5 and the exhaust chamber 6. The water inlet pipe 10 is provided on the inner wall of the air inlet chamber 5 and is coaxial with the air inlet chamber 5. One end of the water inlet pipe 10 is provided outside the outer shell assembly 1, and the other end of the water inlet pipe 10 is inserted into the interior of the water inlet chamber 11. The end of the water inlet chamber 11 is shaped like a flared mouth. A fixing cylinder 36 is provided between the air inlet chamber 5 and the exhaust chamber 6. Several through grooves are opened on the outer wall of the fixing cylinder 36.

[0028] Working process: During heat exchange, the internal cooling water evaporates continuously, requiring a constant supply of water to the interior of the outer casing assembly 1. Water with a lower external temperature enters the inlet chamber 11 through the inlet pipe 10. Lower-temperature water has a better heat exchange effect, thus the inlet chamber 11 provides better cooling for the high-temperature gas entering through the inlet pipe 3. Because the supplied high-temperature gas is extremely hot, typically between 480°C and 520°C, the water near the outer wall of the heat exchange coil 7 quickly boils, generating bubbles. When these bubbles rise to the surface... This can cause rupture, resulting in water vibration. When the water vibrates, the vibration is transmitted to the heat exchange coil 7. To prevent the vibration from affecting the fixation of the heat exchange coil 7 ends and its own stability, upper limit brackets 8 are installed on both sides of each heat exchange coil 7. Each upper limit bracket 8 is connected by a shock-absorbing pad 9, so that the upper limit bracket 8 abuts against the heat exchange coil 7 and the shock-absorbing pad 9 is used to absorb vibration, thereby achieving the shock absorption effect on the heat exchange coil 7. In addition, the upper limit bracket 8 keeps the curvature of the heat exchange coil 7 from being affected, thus improving the stability of the upper limit bracket 8.

[0029] Specific effects: Through the setting of the limiting bracket 8 and the shock-absorbing pad 9, the heat exchange coil 7 is buffered by the vibration when the bubble is generated and disappears, and the vibration caused by the water flow impact during water supply is also damped. The limiting bracket 8 can ensure that different heat exchange coils 7 will not collide or deform significantly, thus improving the stability of the heat exchange coil 7.

[0030] As one embodiment of the present invention, please refer to Figure 5 , Figure 6 , Figure 7 and Figure 9 The key features are as follows: an agitator assembly is installed inside the heat exchanger assembly. The agitator assembly is coaxially arranged with the heat exchanger assembly. The agitator assembly consists of a front-end fixed frame 12, a drive shaft 13, a turbine blade 14, a conical turbine 15, a coil spring 16, an auger blade 17, and an agitator blade 18. The front-end fixed frame 12 is fixedly installed on the inner wall of the water inlet pipe 10. The drive shaft 13 is rotatably connected to the front-end fixed frame 12 through a bearing. The turbine blade 14 and the auger blade 17 are both installed on the drive shaft 13. The turbine blade 14 is located inside the water inlet pipe 10 and is connected to the drive shaft 13. The conical turbine 15 is located on the rear side of the turbine blade 14. The coil spring 16 is located between the conical turbine 15 and the drive shaft 13. The auger blade 17 is installed on the outer surface of the drive shaft 13, and the agitator blade 18 is installed at the outer edge of the auger blade 17.

[0031] The housing assembly 1 has a buffer assembly installed inside. The buffer assembly is installed at the tail of the drive shaft 13. The buffer assembly consists of a buffer disc 19 sleeved at the tail of the drive shaft 13, a rear end fixing bracket 20 connected to the tail of the drive shaft 13 via a bearing, and a buffer spring 22 disposed between the buffer disc 19 and the rear end fixing bracket 20. The buffer disc 19 has several sets of pressure relief holes 21. The rear end fixing bracket 20 is fixedly installed on the outer wall of the exhaust chamber 6.

[0032] An auxiliary damping assembly is provided on the rear end fixing frame 20. The auxiliary damping assembly consists of a slide groove 23 opened on the rear end fixing frame 20, a limiting rod 24, a first sliding seat 25, abutment spring 26, a second sliding seat 27, and a top plate 28 installed on the second sliding seat 27. Several sets of auxiliary damping assemblies are provided on the rear end fixing frame 20 and are arranged in a circular array about the axis of the rear end fixing frame 20. The first sliding seat 25, abutment spring 26, and second sliding seat 27 are all slidably disposed on the limiting rod 24, and the abutment spring 26 is disposed between the first sliding seat 25 and the second sliding seat 27. The limiting rod 24 is fixedly installed on the inner wall of the slide groove 23.

[0033] A connecting component is provided between the auxiliary shock absorption component and the buffer component. The connecting component consists of a first hinge seat 29, a second hinge seat 30, and a connecting rod 31 provided between the first hinge seat 29 and the second hinge seat 30. The first hinge seat 29 is installed on the back of the buffer plate 19, and the second hinge seat 30 is installed on the end of the first sliding seat 25.

[0034] Working process: Steam is generated inside the outer casing assembly 1, increasing its internal pressure. Therefore, the supplied water pressure also needs to increase. This increased water pressure raises the water flow velocity, impacting the heat exchange coil 7. The installed turbine blades 14 and conical turbine 15 buffer the supplied water. The kinetic energy of this buffering drives the turbine blades 14 to rotate. The rotation of the turbine blades 14 drives the drive shaft 13 to rotate, which in turn drives the auger blades 17 and the conical turbine 15. Due to the installation of the coil spring 16... Furthermore, the direction of the blades on the conical turbine 15 is consistent with the arc direction of the turbine blades 14. Therefore, under the action of the coil spring 16, the rotation of the conical turbine 15 can promote the rotation of the turbine blades 14, improve the stirring effect of the auger blades 17 and the stirring blades 18 on the cooling water, and the auger blades 17 and the stirring blades 18 can make the static water move when stirring, so that the water around the heat exchange coil 7 is in continuous motion, improving the heat exchange efficiency of the equipment. In addition, the buffering of the supply water can reduce the impact force of the water flow on the heat exchange coil 7 and protect the heat exchange coil 7.

[0035] In addition, due to the arrangement of the auger blades 17, which have the ability to transport water, the auger blades 17 can transport water laterally, further improving the stirring effect. The water moving laterally and the water passing through the conical turbine 15 are buffered a second time by the buffer plate 19, further reducing the water flow velocity and further improving the protection effect on the heat exchange coil 7. The pressure is also relieved through the pressure relief hole 21 on the buffer plate 19, which provides some protection against the water flow impact on the buffer plate 19.

[0036] When the buffer plate 19 is impacted, it moves backward, thereby causing the first sliding seat 25 to press against the abutment spring 26 through the transmission of the connecting assembly. Then, the top plate 28 on the second sliding seat 27 presses against the limiting bracket 8, and the limiting bracket 8 is abutted. Then, the abutment spring 26 buffers the vibration caused by the steam and water flow on the limiting bracket 8, thereby further improving the shock absorption and impact resistance of the heat exchange coil 7.

[0037] Effects: This wound tube heat exchange boiler, by employing stirring components, buffer components, and auxiliary shock-absorbing components, can buffer the impact force caused by the supply water, further protect the heat exchange coil 7, and stir the cooling water to further improve the heat exchange effect. In addition, stirring can accelerate the collapse of steam bubbles, quickly release water vapor, reduce the vibration impact when bubbles collapse naturally, and improve the production efficiency of water vapor.

[0038] It should be noted that, in this document, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] 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 wound tube heat exchanger boiler, comprising an outer shell assembly (1), a heat exchanger assembly disposed inside the outer shell assembly (1), and an air chamber (2) located at the top of the outer shell assembly (1), characterized in that: An air inlet pipe (3) and an exhaust pipe (4) are respectively installed on the end caps at both ends of the outer shell assembly (1). The heat exchanger assembly is installed between the air inlet pipe (3) and the exhaust pipe (4). The heat exchanger assembly is fixedly installed on the inner wall of the outer shell assembly (1). The air bag (2) is connected to the interior of the outer shell assembly (1). The air bag (2) is located in the middle of the outer shell assembly (1). A steam exhaust pipe (33) is provided on the top of the air bag (2). The heat exchanger assembly consists of an air inlet chamber (5), an exhaust chamber (6), a heat exchange coil (7), a water inlet pipe (10), and a water inlet chamber (11). The air inlet chamber (5) and the exhaust chamber (6) are located at both ends of the heat exchange coil (7) and are connected to the heat exchange coil (7). There are several heat exchange coils (7) and they are arranged in a spiral shape. The air inlet chamber (5) is located on the side near the air inlet pipe (3) and is connected to the air inlet pipe (3). The exhaust chamber (6) is located on the side near the exhaust pipe (4) and is connected to the exhaust pipe (4). Both the air inlet chamber (5) and the exhaust chamber (6) are fixedly connected to the inner wall of the outer shell assembly (1).

2. The spiral wound tube heat exchanger boiler according to claim 1, characterized in that: Limiting brackets (8) are provided between adjacent heat exchange coils (7), and the limiting brackets (8) are abutted against the heat exchange coils (7). Shock-absorbing pads (9) are provided between adjacent limiting brackets (8), and the two ends of the limiting brackets (8) are respectively installed on the outer walls of the air inlet chamber (5) and the exhaust chamber (6).

3. The wound tube heat exchanger boiler according to claim 1, characterized in that: The water inlet pipe (10) is installed on the inner wall of the air inlet chamber (5). The water inlet pipe (10) is coaxially arranged with the air inlet chamber (5). One end of the water inlet pipe (10) is located outside the outer shell assembly (1). The other end of the water inlet pipe (10) is inserted into the interior of the water inlet chamber (11). The end of the water inlet chamber (11) is shaped like a flared mouth. A fixed cylinder (36) is provided between the air inlet chamber (5) and the exhaust chamber (6). Several through grooves are opened on the outer wall of the fixed cylinder (36).

4. A wound tube heat exchanger boiler according to claim 1, characterized in that: The heat exchanger assembly is internally equipped with a stirring assembly, which is coaxially arranged with the heat exchanger assembly. The stirring assembly consists of a front-end fixed frame (12), a drive shaft (13), turbine blades (14), a conical turbine (15), a coil spring (16), an auger blade (17), and a stirring blade (18). The front-end fixed frame (12) is fixedly installed on the inner wall of the water inlet pipe (10). The drive shaft (13) is rotatably connected to the front-end fixed frame (12). The turbine blades (14) and the auger blades... The blades (17) are all mounted on the drive shaft (13). The turbine blades (14) are located inside the water inlet pipe (10). The turbine blades (14) are connected to the drive shaft (13). The conical turbine (15) is located on the rear side of the turbine blades (14). The coil spring (16) is located between the conical turbine (15) and the drive shaft (13). The auger blades (17) are mounted on the outer surface of the drive shaft (13). The stirring blades (18) are mounted on the outer edge of the auger blades (17).

5. A wound tube heat exchanger boiler according to claim 4, characterized in that: The housing assembly (1) is provided with a buffer assembly inside. The buffer assembly is installed at the tail of the drive shaft (13). The buffer assembly consists of a buffer disc (19) sleeved on the tail of the drive shaft (13), a rear end fixing bracket (20) connected to the tail of the drive shaft (13), and a buffer spring (22) disposed between the buffer disc (19) and the rear end fixing bracket (20). The buffer disc (19) is provided with several sets of pressure relief holes (21). The rear end fixing bracket (20) is fixedly installed on the outer wall of the exhaust chamber (6).

6. A wound tube heat exchanger boiler according to claim 5, characterized in that: An auxiliary damping assembly is provided on the rear end fixing frame (20). The auxiliary damping assembly consists of a slide groove (23) opened on the rear end fixing frame (20), a limiting rod (24), a first sliding seat (25), a contact spring (26), a second sliding seat (27), and a top plate (28) installed on the second sliding seat (27). Several sets of the auxiliary damping assembly are provided on the rear end fixing frame (20) and are arranged in a circular array about the axis of the rear end fixing frame (20). The first sliding seat (25), the contact spring (26), and the second sliding seat (27) are all slidably arranged on the limiting rod (24), and the contact spring (26) is arranged between the first sliding seat (25) and the second sliding seat (27). The limiting rod (24) is fixedly installed on the inner wall of the slide groove (23).

7. A wound tube heat exchanger boiler according to claim 6, characterized in that: A connecting component is provided between the auxiliary shock absorption component and the buffer component. The connecting component consists of a first hinge seat (29), a second hinge seat (30), and a connecting rod (31) provided between the first hinge seat (29) and the second hinge seat (30). The first hinge seat (29) is installed on the back of the buffer plate (19), and the second hinge seat (30) is installed on the end of the first sliding seat (25).

8. A wound tube heat exchanger boiler according to claim 1, characterized in that: The bottom of the outer shell assembly (1) is provided with a bottom bracket (35), and a number of reinforcing rings (34) are provided on the outer wall of the outer shell assembly (1). A number of spoilers (32) are symmetrically distributed on the inner wall of the outer shell assembly (1).

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