A winding tube heat exchanger with flow guide partition

Abstract

The application provides a winding pipe heat exchanger with a flow guide partition plate, and relates to the technical field of heat exchange equipment. The heat exchanger comprises an outer cylinder and a winding pipe bundle mechanism. The outer cylinder is provided with an inlet pipe and an outlet pipe for the pipe bundle fluid at both ends. The winding pipe bundle mechanism comprises a winding pipe bundle and cover body parts at both ends of the winding pipe bundle. The cover body parts are detachably connected with the outer cylinder. A rotating flow guide unit is rotatably installed between the two cover body parts. The rotating flow guide unit comprises a flow guide spiral plate and two bearing rotating components. The flow guide spiral plate spirally surrounds the outside of the winding pipe bundle. One of the bearing rotating components corresponds to the inlet pipe to receive the impact kinetic energy of the shell side fluid and drive the flow guide spiral plate to rotate synchronously. The application utilizes the impact kinetic energy of the shell side fluid to drive the flow guide spiral plate to rotate, which can not only buffer the direct impact of the fluid on the pipe bundle, but also forcibly guide the shell side fluid to form spiral and rotating composite flow in the cylinder, thereby significantly enhancing the fluid disturbance and heat exchange effect.

Description

Technical Field

[0001] This invention relates to the field of heat exchange equipment technology, and in particular to a wound tube heat exchanger with a flow guide baffle. Background Technology

[0002] Spiral wound tube heat exchangers, as a type of highly efficient and compact heat exchange equipment, are widely used in industries such as petrochemicals, liquefied natural gas (LNG), nuclear energy, and aerospace due to their advantages such as compact structure, high heat transfer efficiency, and ability to withstand high temperatures and pressures. Their core structure typically includes an outer cylinder and a bundle of wound tubes inside it, achieving energy transfer through heat exchange between the two fluids inside and outside the tube bundle.

[0003] In existing wound tube heat exchangers, the shell-side fluid typically enters directly at high speed from the inlet pipe on the outer shell sidewall, directly impacting the internal wound tube bundle. Under prolonged exposure to this impact, the wound tube bundle, especially its bends, is prone to erosion, vibration, and even fatigue damage, severely impacting the equipment's service life and operational safety. Furthermore, the flow path of the shell-side fluid within the shell is relatively simple, relying primarily on the spiral structure of the wound tube bundle for guidance, resulting in uneven flow distribution. This leads to underutilization of some heat exchange areas, thus hindering further improvements in overall heat exchange efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a wound tube heat exchanger with flow guide baffles to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A wound tube heat exchanger with a flow guide baffle includes an outer cylinder and a wound tube bundle mechanism. Inlet pipes and outlet pipes are respectively provided on the outer walls of both ends of the outer cylinder for introducing and discharging tube bundle fluid, respectively. The wound tube bundle mechanism includes a wound tube bundle and cover portions located at both ends of the wound tube bundle. The two cover portions are respectively connected to the two ends of the outer cylinder in a sealed and detachable manner. Each cover portion is provided with a convergence and divergence flow guiding unit, which respectively introduces and discharging shell-side fluid. The wound tube bundle is distributed inside the outer cylinder in a helical direction. A rotating flow guide unit is also provided between the two cover portions. The rotating flow guide unit includes a flow guide spiral plate and two load-bearing rotating assemblies. The flow guide spiral plate spirally wraps around the outside of the wound tube bundle, and its two ends are respectively connected to the two load-bearing rotating assemblies. The two load-bearing rotating assemblies are rotatably connected to the two cover portions. One of the load-bearing rotating assemblies corresponds to the inlet pipe. Under the impact generated when the heat-absorbing fluid enters the outer cylinder through the inlet pipe, the load-bearing rotating assembly rotates.

[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In one alternative: the flow guide spiral plate is made of stainless steel and has a thickness of at least 2 mm.

[0009] In one alternative: the winding tube bundle consists of multiple strands wound together synchronously, with a flow gap between each adjacent winding tube bundle to allow the shell-side fluid to flow between the inside and outside of the winding tube bundle, and the winding tube bundles are also connected by multiple connecting rods.

[0010] In one alternative: each winding tube bundle has a connecting pipe at its end, and each connecting pipe is equipped with a flow meter.

[0011] In one alternative: the pitch of the rotating flow guiding unit is smaller than the pitch of the winding tube bundle and their center lines coincide, and the surface of the rotating flow guiding unit is distributed with perforated holes.

[0012] In one alternative embodiment: the rotating bearing assembly includes a rotating support ring, a connecting disc, and multiple buffer blades. The rotating support ring is rotatably connected to the end of the cover portion facing the inner cylinder. The multiple buffer blades are evenly distributed on the outer wall of the rotating support ring and are inclined. The buffer blade at the apex of the rotating support ring corresponds to the inlet pipe. The outer edge of the connecting disc is fixedly connected to the rotating support ring, and its center is located on the center line of the guide spiral plate. The end of the guide spiral plate is fixedly connected to the end face of the connecting disc.

[0013] In one alternative: both the inlet pipe and the outlet pipe are fixedly connected to the outer wall of the outer cylinder in a manner tangent to the arc apex of the outer cylinder, and their orientations are opposite.

[0014] In one alternative: both ends of the outer cylinder are provided with cylinder flanges; the cover body includes a separable flange, a cover plate body, and an inner convex ring; the outer diameter of the cover plate body is the same as the inner diameter of the outer cylinder, and the cover plate body can be sealed and installed at the port of the outer cylinder; the separable flange is opposite to the cylinder flange and the two are fastened together by bolts; the separable flange and the cover plate body are detachably connected; the convergence and diversion unit is provided on the end face of the cover plate body, and the inner convex ring is provided on the end face of the cover plate body facing the outer cylinder; the rotating support ring is rotatably engaged with the inner convex ring.

[0015] In one alternative: the convergence and diversion unit includes a convergence tube and multiple diversion tubes. The convergence tube is connected to the tube bundle fluid pumping device, and the multiple diversion tubes are circumferentially distributed outside the convergence tube. One end of each diversion tube is connected to the convergence tube through an on / off valve, and the other end is connected to the end of the flow meter through a separable flange.

[0016] In one alternative: an inner guide tube is also provided between the two cover plate bodies, and heat exchange plates are provided on the outer wall of the inner guide tube along the axial direction. The heat exchange plates are spiral and hollow inside; the end of the inner guide tube is connected to the flow convergence tube through a flow cut-off valve.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects:

[0018] This invention, by setting a bearing-rotating component at the end of the wound tube bundle and corresponding it to the shell-side fluid inlet pipe, ensures that the high-speed entering shell-side fluid first impacts the bearing-rotating component, converting the impact kinetic energy into the rotational kinetic energy of the component. This effectively buffers and dissipates the impact force of the fluid, preventing the wound tube bundle from being directly subjected to strong erosion, significantly reducing the frequency of surface damage due to erosion and vibration, and significantly improving the reliability and service life of the equipment. Driven by the bearing-rotating component, the guide spiral plate in the rotating flow guiding unit rotates with the impact of the shell-side fluid. The rotating spiral plate exerts a forced guiding and agitating effect on the shell-side fluid, superimposing circumferential disturbances generated by the spiral plate's rotation on top of the original spiral upward (or downward) path, forming a complex composite flow. This flow pattern effectively disrupts the fluid boundary layer, eliminates dead zones in the cylinder, and ensures more complete and uniform contact between the shell-side fluid and the surface of the wound tube bundle. This invention cleverly utilizes the originally harmful impact energy of the shell-side fluid, converting it into the power to drive the rotation of the guide spiral plate, without requiring an additional power source. The rotating guide spiral plate not only acts as a buffer, but more importantly, it greatly enhances the convective heat transfer coefficient on the shell side by increasing the turbulence and turbulent mixing of the fluid, thereby significantly improving the overall heat transfer efficiency between the wound tube bundle and the shell-side fluid under the same operating conditions. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a wound tube heat exchanger with a flow guide baffle in one embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of a wound tube heat exchanger with a flow guide baffle in one embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the winding tube bundle mechanism in one embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of a wound tube bundle installation structure in one embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of a wound tube bundle structure in one embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the inner guide tube structure in one embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the rotating flow guiding unit structure in one embodiment of the present invention.

[0027] Figure reference numerals: Outer cylinder 100, Inlet pipe 110, Outlet pipe 120, Cylinder flange 130, Converging and diverting flow unit 200, Converging pipe 210, Diverting pipe 220, On / off valve 230, Inner guide cylinder 240, Heat exchange plate 250, Cut-off valve 260, Cover body 300, Separable flange 310, Cover plate body 320, Inner convex ring 330, Winding tube bundle 400, Connecting pipe 410, Flow meter 420, Rotating guide unit 500, Guide spiral plate 510, Rotating support ring 520, Connecting disc 530, Buffer blade 540. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0029] The left, right, up, and down positions of the various components shown in the attached diagram are just one arrangement method; the specific positions should be set according to specific needs.

[0030] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, a wound tube heat exchanger with a flow guide baffle includes an outer cylinder 100 and a wound tube bundle mechanism. Inlet pipes 110 and outlet pipes 120 are respectively provided on the outer walls of both ends of the outer cylinder 100 for introducing and discharging fluid from the tube bundle. The wound tube bundle mechanism includes a wound tube bundle 400 and cover portions 300 located at both ends of the wound tube bundle 400. The two cover portions 300 are respectively connected to the two ends of the outer cylinder 100 in a sealed and detachable manner. Each cover portion 300 is provided with a convergence and divergence unit 200, which respectively introduces and discharging shell-side fluid. The wound tube bundle... The tube bundle 400 is distributed in a spiral direction inside the outer cylinder 100; a rotating flow guiding unit 500 is also provided between the two cover parts 300, and the rotating flow guiding unit 500 includes a flow guiding spiral plate 510 and two load-bearing rotating components. The flow guiding spiral plate 510 spirally surrounds the outside of the winding tube bundle 400, and its two ends are respectively connected to the two load-bearing rotating components. The two load-bearing rotating components are rotatably connected to the two cover parts 300 respectively. One of the load-bearing rotating components corresponds to the inlet pipe 110. Under the impact generated when the heat-absorbing fluid enters the interior of the outer cylinder 100 through the inlet pipe 110, the load-bearing rotating component rotates.

[0031] In this embodiment of the invention, the two convergence and divergence units 200 are respectively an inlet and an outlet. The tube bundle fluid is transported to the wound tube bundle 400 through one of the inlet sections, and then flows along the spiral direction of the wound tube bundle 400 to the outlet section. The shell-side fluid is introduced into the outer cylinder 100 through the inlet pipe 110, and after filling the outer cylinder 100, it is discharged through the outlet pipe 120. The shell-side fluid contacts the surface of the wound tube bundle 400 inside the outer cylinder 100, and heat exchange occurs between the wound tube bundle 400 and the tube bundle fluid by utilizing the thermal conductivity of the wound tube bundle 400. The spiral shape of the wound tube bundle 400 can increase the contact area with the tube bundle fluid and... Increasing the flow path of the tube bundle fluid greatly improves heat exchange efficiency. When the shell-side fluid first enters the outer cylinder 100, it generates an impact, which acts on one of the supporting rotating components. This rotating component rotates to buffer the impact of the shell-side fluid, effectively reducing the impact of the shell-side fluid on the wound tube bundle 400 and decreasing the frequency of surface damage to the wound tube bundle 400. The flow-guiding spiral plate 510 rotates with the supporting rotating component. Utilizing its spiral shape, the shell-side fluid undergoes a combined spiral and rotational flow inside the outer cylinder 100, ensuring sufficient contact between the wound tube bundle 400 and the shell-side fluid. The flow-guiding spiral plate 510 is made of stainless steel with a thickness of at least 2 mm to increase its impact resistance.

[0032] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the wound tube bundle 400 consists of multiple strands wound together synchronously. Each adjacent wound tube bundle 400 has a flow gap to allow the shell-side fluid to flow between the inside and outside of the wound tube bundle 400. The wound tube bundles 400 are also connected by multiple connecting rods. In this embodiment, each wound tube bundle 400 forms a flow path for the tube bundle fluid, enabling multi-path flow of the tube bundle fluid and ensuring sufficient contact between the tube bundle fluid and the sidewall of the wound tube bundle 400. The connecting rods allow multiple wound tube bundles 400 to be connected as a single unit, improving resistance to fluid impact.

[0033] In one embodiment, such as Figures 1-5 As shown, each end of the wound tube bundle 400 is provided with a connecting pipe 410 and each connecting pipe 410 is provided with a flow meter 420. In this embodiment of the invention, each end of the wound tube bundle 400 has a flow meter 420. The flow meter 420 monitors the flow rate of the tube bundle fluid entering into the wound tube bundle 400 and exiting the wound tube bundle 400. If there is a deviation between the two, it indicates that the wound tube bundle 400 is leaking and it is necessary to stop introducing tube bundle fluid into the wound tube bundle 400 in time. If there is no deviation between the two, it indicates that the wound tube bundle 400 is not leaking.

[0034] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, the pitch of the rotating flow guiding unit 500 is smaller than that of the wound tube bundle 400, and their centerlines coincide. The rotating flow guiding unit 500 has perforated holes distributed on its surface. In this embodiment, the perforated holes increase the trajectory of the shell-side fluid. When the shell-side fluid encounters the perforated areas, a portion of the fluid passes through these holes like a "jet." The originally continuous large group of shell-side fluid is divided into countless small fluid groups by the edges of the perforated areas. The impact of the shell-side fluid on the rotating flow guiding unit 500 produces a "baffle effect," further breaking the flow boundary layer, enhancing micro-mixing, and increasing the fluidity between the inside and outside of the cylinder formed by the multiple wound tube bundles 400.

[0035] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the rotating bearing assembly includes a rotating support ring 520, a connecting disc 530, and multiple buffer blades 540. The rotating support ring 520 is rotatably connected to the end of the cover portion 300 facing inward toward the outer cylinder 100. The multiple buffer blades 540 are evenly distributed on the outer wall of the rotating support ring 520 and are inclined. The buffer blades 540 at the arc apex of the rotating support ring 520 correspond to the inlet pipe 110. The outer edge of the connecting disc 530 is fixedly connected to the rotating support ring 520, and its center is located on the center line of the guide spiral plate 510. The end of the guide spiral plate 510 is connected to the connecting disc 530. 0. Fixed connection at the end face; In this embodiment of the invention, the shell-side fluid entering the outer cylinder 100 through the inlet pipe 110 acts on the buffer blades 540. After the buffer blades 540 are impacted by the shell-side fluid, they generate rotational motion. Then, multiple buffer blades 540 move synchronously and take turns to bear the impact of the shell-side fluid, so as to realize the continuous rotation of the rotating support ring 520 and the connecting disk 530. Then, the guide spiral plate 510 moves with the connecting disk 530. The rotating guide spiral plate 510 acts on the shell-side fluid flowing towards the outlet pipe 120, so that the shell-side fluid performs complex movements inside the outer cylinder 100.

[0036] The inlet pipe 110 and outlet pipe 120 are both fixedly connected to the outer wall of the outer cylinder 100 in a manner tangent to the arc apex of the outer cylinder 100, and their orientations are opposite. The inlet pipe 110 is tangent to the arc apex of the outer cylinder 100, and the shell-side fluid inside it acts in a positive direction on the buffer blade 540, which can improve the impact resistance of the buffer blade 540 and ensure the rotational movement of the guide spiral plate 510.

[0037] In one embodiment, such as Figures 1-5As shown, both ends of the outer cylinder 100 are provided with cylinder flanges 130. The cover portion 300 includes a separable flange 310, a cover plate body 320, and an inner convex ring 330. The outer diameter of the cover plate body 320 is the same as the inner diameter of the outer cylinder 100, and the cover plate body 320 can be sealed and installed at the port of the outer cylinder 100. The separable flange 310 is opposite to the cylinder flange 130 and the two are fastened together by bolts. The separable flange 310 and the cover plate body 320 are detachably connected. The convergence and diversion unit 200 is provided on the end face of the cover plate body 320, and the inner convex ring 330 is provided on the cover plate body. On the end face of the outer cylinder 100, the rotating support ring 520 and the inner convex ring 330 are rotatably engaged. In this embodiment of the invention, the end of the flow meter 420 passes through the cover plate body 320 and the separable flange 310 and is connected to the convergence and diversion unit 200. Since the cylinder flange 130 and the separable flange 310 are detachable and the separable flange 310 and the cover plate body 320 are detachable, the entire winding tube bundle mechanism can be removed from the inside of the outer cylinder 100 for easy replacement. The inner convex ring 330 adopts a hollow structure, which can support the rotating support ring 520 and ensure that the shell-side fluid enters the inside of the outer cylinder 100.

[0038] In one embodiment, such as Figures 1-5 As shown, the convergence and diversion unit 200 includes a convergence pipe 210 and multiple diversion pipes 220. The convergence pipe 210 is connected to the tube bundle fluid pumping device, and the multiple diversion pipes 220 are circumferentially distributed outside the convergence pipe 210. One end of each diversion pipe 220 is connected to the convergence pipe 210 through a shut-off valve 230, and the other end passes through a separable flange 310 and is connected to the end of the flow meter 420. In this embodiment of the invention, the shut-off valve 230 is controlled by an external control unit. If the wound tube bundle 400 is damaged, causing leakage during heat exchange of the tube bundle fluid, the shut-off valve 230 will perform a corresponding action to prevent the tube bundle fluid from flowing to the corresponding wound tube bundle 400, thereby ensuring that the heat exchange operation proceeds in an orderly manner.

[0039] In one embodiment, such as Figures 1-6As shown, an inner guide tube 240 is also provided between the two cover plate bodies 320. Heat exchange plates 250 are arranged along the axial direction on the outer wall of the inner guide tube 240. The heat exchange plates 250 are spiral in shape and hollow inside. The end of the inner guide tube 240 is connected to the converging tube 210 through a flow-stopping valve 260. In this embodiment of the invention, the arrangement of the heat exchange plates 250 can obstruct the movement of the shell-side fluid in the center of the outer cylinder 100 and guide the shell-side fluid towards the winding tube bundle 400. If the tube bundle fluid is gas, some gas can be introduced into the inner guide tube 240 by opening the flow-stopping valve 260. This gas then enters the spiral-shaped, hollow heat exchange plates 250, which are connected to the inner cavity of the inner guide tube 240, and undergoes supplementary heat exchange with the shell-side fluid in the center of the outer cylinder 100 through the wall surface of the heat exchange plates 250.

[0040] The above embodiments disclose a wound tube heat exchanger with flow guide baffles, the working principle of which is as follows:

[0041] The tube bundle fluid is one of the media involved in heat exchange, and its flow path is mainly inside the coiled tube bundle 400.

[0042] The fluid in the tube bundle first enters from the convergence and diversion unit 200 (as the inlet) at one end. Specifically, the fluid enters via the convergence pipe 210 and is then evenly distributed to each branch pipe 220 through multiple on / off valves 230.

[0043] After passing through the diverter 220, the fluid passes through the cover 300, first flowing through the flow meter 420, and then through the connecting pipe 410 into the corresponding wound tube bundle 400. The flow meter 420 here is used to monitor the fluid flow rate entering the tube bundle in real time.

[0044] Multiple wound tubes are wound synchronously at 400°. The fluid flows along a spiral path inside the tube bundle, resulting in a long flow path and increased contact time and area with the tube wall.

[0045] After heat exchange is completed, the fluid flows out from the other end of the coiled tube bundle 400, passes through the connecting pipe 410 and the flow meter 420 again, and finally converges to the convergence and diversion unit 200 (as the outflow section) at the other end and is discharged.

[0046] The shell-side fluid is another medium that exchanges heat with the tube bundle fluid, and its flow path is inside the outer cylinder 100 and outside the winding tube bundle 400.

[0047] The shell-side fluid enters the interior at high speed through the inlet pipe 110, which is tangential to the apex of the outer cylinder 100. Due to the tangential arrangement, the fluid directly impacts the buffer blades 540 of the rotating guide unit 500.

[0048] When multiple inclined buffer blades 540 are impacted, they cause the entire load-bearing rotating assembly (including the rotating support ring 520 and the connecting disc 530) to rotate around the inner convex ring 330. This process not only buffers the direct impact of the shell-side fluid and protects the wound tube bundle 400, but also converts the impact energy into mechanical rotational energy.

[0049] The flow-guiding spiral plate 510, which is fixedly connected to the connecting plate 530, rotates accordingly. As the shell-side fluid flows forward, it is influenced by both the helical shape of the stationary wound tube bundle 400 and the forced disturbance of the rotating flow-guiding spiral plate 510. Because the pitch of the flow-guiding spiral plate 510 is smaller than that of the wound tube bundle 400 and its surface is perforated, the fluid experiences "jet" and "baffle" effects as it passes through these perforations, breaking it down into smaller groups. This significantly enhances micro-mixing and ensures sufficient heat exchange between the shell-side fluid and the surface of the wound tube bundle 400.

[0050] Central auxiliary heat exchange: Some shell-side fluid flows towards the central region, but is blocked by the inner guide tube 240 and its spiral heat exchange fins 250, and is redirected to the outer wound tube bundle 400, increasing fluid turbulence. If the tube bundle fluid is gas, some gas can be introduced into the inner guide tube 240 by opening the shut-off valve 260, and supplemented by heat exchange between the heat exchange fins 250 and the shell-side fluid at the center of the outer cylinder 100.

[0051] Discharge: After completing the complex flow and sufficient heat exchange, the shell-side fluid is finally discharged from the outlet pipe 120, which is tangent to the shell on the other side.

[0052] The system monitors the integrity of the wound tube bundle 400 by comparing real-time flow rates.

[0053] Real-time monitoring: Each of the two ends of each wound tube bundle 400 is equipped with a flow meter 420 to record the flow rate of the fluid entering and leaving the tube bundle.

[0054] Leakage detection: When the inlet and outlet flow meter readings of a certain wound tube bundle 400 deviate, it indicates that the tube bundle is leaking and the fluid in the tube bundle is leaking towards the shell side.

[0055] Upon receiving a deviation signal, the external control unit will immediately close the on / off valve 230 located at the inlet end and connected to the wound tube bundle 400, cutting off the fluid supply, preventing leakage from spreading, and ensuring the safe and orderly operation of other tube bundles and the entire heat exchange system.

[0056] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A wound tube heat exchanger with a flow guide baffle, comprising an outer cylinder (100) and a wound tube bundle mechanism, wherein an inlet pipe (110) and an outlet pipe (120) are respectively provided on the outer walls at both ends of the outer cylinder (100) for introducing and discharging fluid from the tube bundle, characterized in that, The winding tube bundle mechanism includes a winding tube bundle (400) and cover portions (300) provided at both ends of the winding tube bundle (400). The two cover sections (300) are respectively connected to the two ends of the outer cylinder (100) in a sealed and detachable manner. Each cover section (300) is provided with a convergence and divergence unit (200). The two convergence and divergence units (200) respectively introduce and export shell-side fluid. The wound tube bundle (400) is distributed inside the outer cylinder (100) in a spiral direction; A rotating flow guiding unit (500) is also provided between the two cover parts (300), and the rotating flow guiding unit (500) includes a flow guiding spiral plate (510) and two load-bearing rotating components. The flow guiding spiral plate (510) spirally surrounds the outside of the winding tube bundle (400), and its two ends are respectively connected to the two load-bearing rotating components. Two load-bearing rotating components are rotatably connected to two cover parts (300) respectively. One of the load-bearing rotating components corresponds to the inlet pipe (110). Under the impact generated when the heat-absorbing fluid enters the outer cylinder (100) through the inlet pipe (110), the load-bearing rotating component rotates.

2. The wound tube heat exchanger with flow guide baffle according to claim 1, characterized in that, The flow guide spiral plate (510) is made of stainless steel and has a thickness of at least 2 mm.

3. The wound tube heat exchanger with flow guide baffle according to claim 1, characterized in that, The winding tube bundle (400) consists of multiple strands wound together synchronously. There is a flow gap between each adjacent winding tube bundle (400) to allow the shell-side fluid to flow between the inside and outside of the winding tube bundle (400). The winding tube bundles (400) are also connected by multiple connecting rods.

4. The wound tube heat exchanger with flow guide baffle according to claim 3, characterized in that, Each of the winding tube bundles (400) is provided with a connecting tube (410) at its end and each connecting tube (410) is provided with a flow meter (420).

5. The wound tube heat exchanger with flow guide baffle according to claim 1, characterized in that, The pitch of the rotating flow guiding unit (500) is smaller than that of the winding tube bundle (400), and their center lines coincide. The surface of the rotating flow guiding unit (500) is distributed with perforated holes.

6. The wound tube heat exchanger with flow guide baffle according to claim 5, characterized in that, The load-bearing rotating assembly includes a rotating support ring (520), a connecting disk (530), and multiple buffer blades (540). The rotating support ring (520) is rotatably connected to the end of the cover part (300) facing the inner end of the outer cylinder (100). Multiple buffer blades (540) are evenly distributed on the outer wall of the rotating support ring (520) and are inclined. The buffer blade (540) at the top of the arc of the rotating support ring (520) corresponds to the inlet pipe (110). The outer edge of the connecting disk (530) is fixedly connected to the rotating support ring (520), and its center is located on the center line of the guide spiral plate (510). The end of the guide spiral plate (510) is fixedly connected to the end face of the connecting disk (530).

7. The wound tube heat exchanger with flow guide baffle according to claim 6, characterized in that, The inlet pipe (110) and outlet pipe (120) are both fixedly connected to the outer wall of the outer cylinder (100) in a manner tangent to the arc apex of the outer cylinder (100), and their orientations are opposite.

8. The wound tube heat exchanger with flow guide baffle according to claim 4, characterized in that, The outer cylinder (100) is provided with cylinder flanges (130) at both ends, and the cover part (300) includes a separable flange (310), a cover plate body (320) and an inner convex ring (330). The outer diameter of the cover plate body (320) is the same as the inner diameter of the outer cylinder (100), and the cover plate body (320) can be sealed and installed at the port of the outer cylinder (100). The separable flange (310) is opposite to the cylinder flange (130) and the two are fastened together by bolts. The detachable flange (310) and the cover body (320) are detachably connected; the convergence and diversion unit (200) is provided on the end face of the cover body (320), the inner convex ring (330) is provided on the end face of the cover body (320) facing the outer cylinder (100), and the rotating support ring (520) is rotatably engaged with the inner convex ring (330).

9. The wound tube heat exchanger with flow guide baffle according to claim 8, characterized in that, The convergence and diversion unit (200) includes a convergence pipe (210) and multiple diversion pipes (220). The convergence pipe (210) is connected to the tube bundle fluid pumping equipment. The multiple diversion pipes (220) are circumferentially distributed outside the convergence pipe (210). One end of each diversion pipe is connected to the convergence pipe (210) through an on / off valve (230), and the other end is connected to the end of the flow meter (420) through a separable flange (310).

10. The wound tube heat exchanger with flow guide baffle according to claim 9, characterized in that, An inner guide tube (240) is also provided between the two cover plate bodies (320). The outer wall of the inner guide tube (240) is provided with heat exchange plates (250) along the axial direction. The heat exchange plates (250) are spiral and hollow inside. The end of the inner guide tube (240) is connected to the flow-gathering tube (210) through a flow-stopping valve (260).

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