Wound tube type heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a coiled tube type heat exchanger which comprises a shell and two tube boxes arranged at the two ends of the shell correspondingly, a shell pass material inlet and a shell pass material outlet are formed in the two ends of the peripheral side of the shell correspondingly, and a tube pass material inlet and a tube pass material outlet are formed in the two tube boxes correspondingly. A tube plate is arranged between each tube box and the shell, a heat exchange tube spirally arranged in the axial direction of the shell is arranged between the two tube plates, the two ends of the heat exchange tube penetrate through the tube plates respectively, a disturbance part is arranged in the shell, the shell pass material inlet is provided with a driving part in transmission connection with the disturbance part, and when shell pass materials enter the shell through the shell pass material inlet, the disturbance part is driven by the driving part to disturb the disturbance part. The driving part drives the disturbance part to rotate under the action of the shell pass material so as to disturb the shell pass material in the shell, so that the turbulence effect of the shell pass material in the shell is improved, the heat exchange time of the shell pass material and the tube pass material is prolonged, and the heat exchange efficiency of the coiled tube type heat exchanger is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of heat exchangers, and in particular relates to a coiled tube heat exchanger. Background Art

[0002] The coiled heat exchanger is widely used in chemical industry, air separation, LNG liquefaction and other equipment due to its compact structure and high heat exchange efficiency.

[0003] The existing wound-tube heat exchanger includes a shell and a tube box arranged at both ends of the shell, a shell-side material inlet and a shell-side material outlet are respectively arranged at both ends of the outer peripheral surface of the shell, and the two tube boxes are respectively provided with a tube-side material inlet and a tube-side material outlet. A tube sheet is arranged between the shell and the tube box, and a heat exchange tube penetrating the tube sheet is arranged between the two tube sheets so that the two ends of the heat exchange tube are respectively connected to the tube box. The heat exchange tube is spirally arranged around the central axis of the shell to increase the heat exchange area between the tube-side material and the shell-side material, thereby improving the heat exchange effect of the heat exchanger.

[0004] At present, there are four main factors that affect the heat transfer efficiency of heat exchangers, namely the temperature difference between the tube side material and the shell side material, thermal conductivity, heat transfer area and the turbulence degree of the fluid. At present, the turbulence formed by the coiled heat exchanger mainly relies on the turbulence of the multi-layer heat exchange tubes. This method makes the turbulence effect of the fluid relatively general, thus affecting the heat transfer efficiency of the coiled heat exchanger. Utility Model Content

[0005] The present application provides a coiled-tube heat exchanger to increase the turbulence of a fluid, thereby increasing the heat exchange efficiency of the coiled-tube heat exchanger.

[0006] The technical solution adopted in this application is:

[0007] A wound tube heat exchanger comprises a shell and two tube boxes respectively arranged at both ends of the shell, wherein a shell-side material inlet and a shell-side material outlet are respectively arranged at both ends of the circumferential side of the shell, and a tube-side material inlet and a tube-side material outlet are respectively arranged on the two tube boxes, a tube sheet is arranged between each tube box and the shell, a heat exchange tube spirally arranged along the axial direction of the shell is arranged between the two tube sheets, and both ends of the heat exchange tube are respectively penetrated through the tube sheets, a disturbance member is arranged in the shell, and a driving member transmission-connected to the disturbance member is arranged at the shell-side material inlet, and when the shell-side material enters the shell through the shell-side material inlet, the driving member drives the disturbance member to rotate under the action of the shell-side material to disturb the shell-side material in the shell.

[0008] By adopting the above technical scheme, when the coiled heat exchanger in the present application is used, the tube-side material enters the tube box and the heat exchange tube through the tube-side material inlet, and the shell-side material enters the shell through the shell-side material inlet and contacts the heat exchange tube, thereby causing heat exchange between the tube-side material and the shell-side material. When the shell-side material enters the shell through the shell-side material inlet, the driving member moves under the action of the shell-side material, thereby causing the disturbance member to rotate under the action of the driving member, so that the disturbance member disturbs the shell-side material in the shell, so as to increase the turbulent effect of the shell-side material in the shell, thereby increasing the residence time of the shell-side material in the shell, so as to increase the heat exchange time between the shell-side material and the tube-side material, thereby improving the heat exchange efficiency of the coiled heat exchanger.

[0009] Optionally, the driving member includes a transmission shaft rotatably connected to the housing and a fan blade disposed on the transmission shaft, and the transmission shaft is in transmission connection with the disturbance member.

[0010] By adopting the above technical solution, when the shell-side material enters the shell through the shell-side material inlet, the shell-side material contacts the fan blades and applies thrust to the fan blades, thereby causing the fan blades to rotate, so that the fan blades drive the transmission shaft to rotate, and the transmission shaft drives the disturbance member to rotate, so that the disturbance member disturbs the shell-side material in the shell, thereby increasing the turbulent effect of the shell-side material in the shell, thereby increasing the heat exchange efficiency of the coiled-tube heat exchanger.

[0011] Optionally, the disturbance member includes a rotating shaft and a disturbance blade disposed on the rotating shaft, the disturbance blade is spirally disposed along the axial direction of the rotating shaft, and the rotating shaft is transmission-connected to the transmission shaft.

[0012] By adopting the above technical solution, when the transmission shaft rotates, the transmission shaft drives the rotating shaft to rotate, so that the rotating shaft drives the disturbance blades to rotate. Since the disturbance blades are arranged in an axial spiral along the rotating shaft, the disturbance blades disturb the shell-side material in the shell to increase the turbulent effect of the shell-side material in the shell, thereby further improving the heat exchange efficiency of the coiled heat exchanger.

[0013] Optionally, the disturbance blades are provided with multiple sections, and the spiral directions of two adjacent sections of the disturbance blades are arranged in opposite directions to each other.

[0014] By adopting the above technical solution, since the spiral modes of two adjacent sections of disturbance blades are opposite to each other, the disturbance directions of the two adjacent sections of disturbance blades on the shell-side material are opposite to each other, so as to further improve the turbulent effect of the shell-side material in the shell, thereby increasing the residence time of the shell-side material in the shell, and further increasing the heat exchange efficiency of the coiled heat exchanger.

[0015] Optionally, the transmission shaft is provided with a first bevel gear, and the rotating shaft is provided with a second bevel gear meshingly connected to the first bevel gear.

[0016] By adopting the above technical solution, when the transmission shaft rotates, the transmission shaft drives the first bevel gear to rotate, and then the first bevel gear and the second bevel gear rotate relative to each other, so that the second bevel gear drives the rotating shaft to rotate, so as to realize the transmission connection between the transmission shaft and the rotating shaft, thereby improving the transmission efficiency between the transmission shaft and the rotating shaft.

[0017] Optionally, the rotating shaft includes a connecting section and a rotating section rotatably connected to the connecting section, the disturbance blade and the second bevel gear are arranged on the rotating section, and the transmission shaft is extended with a support rod, and the support rod extends into the connecting section.

[0018] By adopting the above technical solution, when the transmission shaft rotates, the transmission shaft drives the support rod to rotate, so that the support rod and the connecting section rotate relative to each other, and then the connecting section supports the transmission shaft to increase the stability of the transmission shaft, thereby increasing the stability of the disturbance blades to ensure the disturbance effect on the shell side material, thereby ensuring the heat exchange efficiency of the coiled heat exchanger.

[0019] Optionally, the interior of the rotating section is hollow, and the connecting section is provided with a connecting rod extending into the rotating section.

[0020] By adopting the above technical solution, the interior of the rotating section is hollow, which can reduce the weight of the rotating shaft, thereby reducing the driving force required for the rotation of the rotating shaft, to ensure that the disturbance blades can rotate under the action of the transmission shaft, to ensure the disturbance effect on the shell side material, and the connecting rod extends into the rotating section, which can realize the rotational connection between the rotating section and the connecting section on the one hand, and increase the connection stability between the connecting section and the rotating section on the other hand.

[0021] Optionally, an annular groove is provided on the connecting rod, a snap ring is provided in the annular groove, and a snap groove for accommodating the snap ring is provided inside the rotating section.

[0022] By adopting the above technical solution, after the connecting section and the rotating section are connected together, part of the clamping ring is located in the ring groove, and the remaining part of the clamping ring is located in the clamping groove, so that the clamping ring limits the connecting rod and the rotating section to avoid the situation where the connecting rod may be separated from the rotating section, thereby increasing the connection stability between the connecting section and the rotating section.

[0023] Optionally, a guide surface is provided on one side of the clamping ring facing the interior of the rotating section.

[0024] By adopting the above technical solution, when assembling the rotating shaft, the connecting rod is first aligned with the rotating section, and then the connecting rod is extended into the rotating section so that the guide surface is in contact with the pipe mouth of the rotating section, and then the connecting section is pressed continuously so that the connecting section applies pressure to the clamping ring through the ring groove. The clamping ring is deformed under the action of the guide surface, and then the clamping ring enters the rotating section and slides relative to the rotating section. When the clamping ring moves to the clamping groove, the clamping ring restores its deformation so that the clamping ring enters the clamping groove, thereby completing the assembly of the rotating shaft. In this process, the need to manually apply pressure to the clamping ring is avoided, thereby achieving the effect of facilitating the assembly of the rotating shaft.

[0025] Optionally, a support tube is sleeved on the outside of the transmission shaft, and the support tube is fixedly connected to the shell-side material inlet through a fixing rod.

[0026] By adopting the above technical solution, when the transmission shaft rotates under the action of the fan blades, the transmission shaft and the support tube rotate relative to each other, and the support tube is fixedly connected to the shell material inlet through a fixing rod, so that the support tube supports the transmission shaft to increase the stability of the transmission shaft, thereby ensuring the transmission efficiency and transmission stability between the transmission shaft and the rotating shaft.

[0027] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0028] 1. The coiled heat exchanger in the present application comprises a shell and two tube boxes respectively arranged at two ends of the shell, a shell-side material inlet and a shell-side material outlet are respectively arranged at two ends of the circumferential side of the shell, a tube-side material inlet and a tube-side material outlet are respectively arranged on the two tube boxes, a tube sheet is arranged between each tube box and the shell, a heat exchange tube spirally arranged along the axial direction of the shell is arranged between the two tube sheets, two ends of the heat exchange tube are respectively penetrated through the tube sheets, a disturbance member is arranged in the shell, a driving member transmission-connected to the disturbance member is arranged at the shell-side material inlet, when the shell-side material enters the shell through the shell-side material inlet, the driving member drives the disturbance member to rotate under the action of the shell-side material to disturb the shell-side material in the shell, so as to increase the turbulent effect of the shell-side material in the shell, thereby increasing the residence time of the shell-side material in the shell, so as to increase the heat exchange time between the shell-side material and the tube-side material, thereby improving the heat exchange efficiency of the coiled heat exchanger.

[0029] 2. The driving member in the present application includes a transmission shaft rotatably connected to the shell and a fan blade arranged on the transmission shaft. The transmission shaft is connected to the disturbance member in a transmission manner, so that when the shell-side material enters the shell through the shell-side material inlet, the shell-side material contacts the fan blade and applies thrust to the fan blade, so that the fan blade rotates, so that the fan blade drives the transmission shaft to rotate, and the transmission shaft drives the disturbance member to rotate, so that the disturbance member disturbs the shell-side material in the shell, so as to increase the turbulent effect of the shell-side material in the shell, thereby increasing the heat exchange efficiency of the coiled heat exchanger.

[0030] 3. The disturbance member in the present application includes a rotating shaft and a disturbance blade arranged on the rotating shaft, the disturbance blade is arranged in an axial spiral along the rotating shaft, the rotating shaft is connected to the transmission shaft, so that when the transmission shaft rotates, the transmission shaft drives the rotating shaft to rotate, so that the rotating shaft drives the disturbance blade to rotate, and since the disturbance blade is arranged in an axial spiral along the rotating shaft, the disturbance blade disturbs the shell side material in the shell to increase the turbulent effect of the shell side material in the shell, thereby further improving the heat exchange efficiency of the coiled tube heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 This is a schematic structural diagram of a coiled-tube heat exchanger according to one embodiment of the present application;

[0033] Figure 2 for Figure 1 A magnified view of the middle A area;

[0034] Figure 3 This is a schematic diagram of the connection structure between the driving member and the disturbance member in one implementation manner of the present application;

[0035] Figure 4 This is a schematic diagram of the structure of the driving member in one embodiment of the present application;

[0036] Figure 5 This is a partial structural schematic diagram of the disturbance member in one embodiment of the present application;

[0037] Figure 6 for Figure 5 Enlarged view of the B area;

[0038] Figure 7 This is a schematic structural diagram of the clamping ring in one embodiment of the present application.

[0039] Reference numerals:

[0040] 1. Shell; 11. Shell-side material outlet; 12. Shell-side material inlet; 2. Pipe box; 21. Tube-side material inlet; 22. Tube-side material outlet; 3. Tube sheet; 4. Heat exchange tube; 5. Disturbing member; 51. Rotating shaft; 511. Connecting section; 512. Rotating section; 513. Snap-fit ​​groove; 514. Second bevel gear; 52. Disturbing blade; 6. Driving member; 61. Transmission shaft; 611. Supporting tube; 612. Fixing rod; 613. First bevel gear; 62. Fan blade; 621. Connecting rod; 622. Annular groove; 623. Snap-fit ​​ring; 624. Guide surface; 625. Supporting rod. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0043] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0046] Reference Figure 1 , Figure 2 and Figure 3 A wound tube heat exchanger comprises a shell 1 and two tube boxes 2 respectively arranged at both ends of the shell 1, a shell-side material inlet 12 and a shell-side material outlet 11 are respectively arranged at both ends of the circumferential side of the shell 1, a tube-side material inlet 21 and a tube-side material outlet 22 are respectively arranged on the two tube boxes 2, a tube sheet 3 is arranged between each tube box 2 and the shell 1, a heat exchange tube 4 spirally arranged along the axial direction of the shell 1 is arranged between the two tube sheets 3, and both ends of the heat exchange tube 4 are respectively penetrated through the two tube sheets 3, a disturbance member 5 is arranged in the shell 1, and a driving member 6 drivingly connected to the disturbance member 5 is arranged at the shell-side material inlet 12. When the shell-side material enters the shell 1 through the shell-side material inlet 12, the driving member 6 drives the disturbance member 5 to rotate under the action of the shell-side material to disturb the shell-side material in the shell 1.

[0047] When the coil-wound heat exchanger of the present application is used, the tube-side material enters the tube box 2 and enters the heat exchange tube 4 through the tube-side material inlet 21, and the shell-side material enters the shell 1 through the shell-side material inlet 12 and contacts the heat exchange tube 4, thereby allowing heat exchange between the tube-side material and the shell-side material. When the shell-side material enters the shell 1 through the shell-side material inlet 12, the driving member 6 moves under the action of the shell-side material, so that the disturbance member 5 rotates under the action of the driving member 6, so that the disturbance member 5 disturbs the shell-side material in the shell 1 to increase the turbulent effect of the shell-side material in the shell 1, thereby increasing the residence time of the shell-side material in the shell 1, thereby increasing the heat exchange time between the shell-side material and the tube-side material, and thereby improving the heat exchange efficiency of the coil-wound heat exchanger.

[0048] The present application does not specifically limit the number of heat exchange tubes 4. Preferably, refer to Figure 1 The heat exchange tubes 4 are provided with multiple layers, the multiple layers of heat exchange tubes 4 are mutually nested, and the tube bodies in two adjacent layers of heat exchange tubes 4 are staggered to increase the turbulence effect on the shell side material, thereby ensuring the heat exchange efficiency of the coiled heat exchanger.

[0049] The present application does not specifically limit the structure of the driving member 6. Preferably, refer to Figures 1 to 4 The driving member 6 includes a transmission shaft 61 rotatably connected to the shell 1 and a fan blade 62 arranged on the transmission shaft 61. The transmission shaft 61 is transmission-connected to the disturbance member 5, so that when the shell-side material enters the shell 1 through the shell-side material inlet 12, the shell-side material contacts the fan blade 62 and applies a thrust to the fan blade 62, thereby causing the fan blade 62 to rotate, so that the fan blade 62 drives the transmission shaft 61 to rotate, and the transmission shaft 61 drives the disturbance member 5 to rotate, so that the disturbance member 5 disturbs the shell-side material in the shell 1, so as to increase the turbulent effect of the shell-side material in the shell 1, thereby increasing the heat exchange efficiency of the coiled heat exchanger; at the same time, the fan blade 62 and the transmission shaft 61 are arranged to utilize the kinetic potential energy of the shell-side material entering the shell 1 to drive the disturbance member 5, thereby reducing the energy consumption of the coiled heat exchanger, thereby reducing the use cost of the coiled heat exchanger.

[0050] The present application does not specifically limit the connection method between the transmission shaft 61 and the shell side material inlet 12. Preferably, refer to Figure 1 and Figure 2 A support tube 611 is sleeved on the outside of the transmission shaft 61, and the support tube 611 is fixedly connected to the shell-side material inlet 12 through a fixing rod 612, so that when the transmission shaft 61 rotates under the action of the fan blades 62, the transmission shaft 61 and the support tube 611 rotate relative to each other, and the support tube 611 is fixedly connected to the shell-side material inlet 12 through the fixing rod 612, so that the support tube 61 supports the transmission shaft 61, so as to increase the stability of the transmission shaft 61, thereby ensuring the transmission efficiency and transmission stability between the transmission shaft 61 and the rotating shaft 51.

[0051] Better, refer to Figure 2 A plurality of fixing rods 612 are arranged at intervals along the circumference of the support tube 611 to increase the fixing points of the support tube 611 , thereby increasing the stability of the support tube 611 and increasing the stability of the transmission shaft 61 .

[0052] Further, see Figure 2 and Figure 4 The outside of the transmission shaft 61 is fixedly connected with limit rings located at both ends of the support tube 611, and the limit rings are in contact with the support tube 611, so that the limit rings and the support tube 611 cooperate to limit the axial movement of the transmission shaft 61, thereby increasing the stability of the transmission shaft 61 and further ensuring the heat exchange efficiency of the coiled-tube heat exchanger.

[0053] In other embodiments, the driving member 6 may also be a waterproof motor, and the output shaft of the waterproof motor is drivingly connected to the disturbing member 5 to drive the disturbing member 5 to rotate.

[0054] The present application does not specifically limit the structure of the disturbance member 5. Preferably, refer to Figure 1 and Figure 3 The disturbance member 5 includes a rotating shaft 51 and a disturbance blade 52 arranged on the rotating shaft 51. The disturbance blade 52 is arranged in a circumferential spiral along the transmission shaft 61. The rotating shaft 51 is transmission-connected to the transmission shaft 61, and the rotating shaft 51 is arranged parallel to the axial direction of the shell 1, so that when the transmission shaft 61 rotates, the transmission shaft 61 drives the rotating shaft 51 to rotate, so that the rotating shaft 51 drives the disturbance blade 52 to rotate. Since the disturbance blade 52 is arranged in an axial spiral along the rotating shaft 51, the disturbance blade 52 disturbs the shell side material in the shell 1, so as to increase the turbulence effect of the shell side material in the shell 1, and further improve the heat exchange efficiency of the coiled heat exchanger.

[0055] The present application does not specifically limit the structure of the disturbance blade 52. Preferably, refer to Figure 1 and Figure 3 The disturbance blade 52 is provided with multiple sections, and the spiral directions of two adjacent sections of the disturbance blade 52 are set in opposite directions, so that the disturbance directions of the two adjacent sections of the disturbance blade on the shell side material are opposite to each other, so as to further improve the turbulence effect of the shell side material in the shell 1, thereby increasing the residence time of the shell side material in the shell 1, and further increasing the heat exchange efficiency of the coiled heat exchanger. In other embodiments, the disturbance blade 52 can also be provided with only one section, that is, the spiral direction of the disturbance blade 52 is constant.

[0056] Preferably, the rotating shaft 51 is provided with multiple sections, the multiple sections of the rotating shaft 51 are coaxially arranged, and two adjacent sections of the transmission shaft 61 are connected by a coupling to reduce the torque applied to the rotating shaft 51 during rotation, thereby reducing the risk of possible damage to the rotating shaft 51, thereby increasing the service life of the rotating shaft 51 and reducing the failure rate of the coiled-tube heat exchanger.

[0057] The present application does not specifically limit the transmission connection method between the transmission shaft 61 and the rotating shaft 51. Preferably, refer to Figure 1 , Figure 3 and Figure 4 The transmission shaft 61 is provided with a first bevel gear 613, and the rotating shaft 51 is provided with a second bevel gear 514 that is meshed and connected to the first bevel gear 613, so that when the transmission shaft 61 rotates, the transmission shaft 61 drives the first bevel gear 613 to rotate, and then the first bevel gear 613 and the second bevel gear 514 rotate relatively, so that the second bevel gear 514 drives the rotating shaft 51 to rotate, so as to realize the transmission connection between the transmission shaft 61 and the rotating shaft 51, thereby improving the transmission efficiency between the transmission shaft 61 and the rotating shaft 51. In other embodiments, the transmission shaft 61 and the rotating shaft 51 can also be connected through a universal joint.

[0058] The present application does not specifically limit the structure of the rotating shaft 51. Preferably, refer to Figure 3 The rotating shaft 51 includes a connecting section 511 and a rotating section 512 that is rotatably connected to the connecting section 511. The disturbance blade 52 and the second bevel gear 514 are arranged in the rotating section 512. The transmission shaft 61 is extended with a support rod 625, and the support rod 625 extends into the connecting section 511. That is to say, when the transmission shaft 61 rotates, the transmission shaft 61 drives the support rod 625 to rotate, so that the support rod 625 and the connecting section 511 rotate relative to each other, and then the connecting section 511 supports the transmission shaft 61 to increase the stability of the transmission shaft 61, thereby increasing the stability of the disturbance blade 52, so as to ensure the disturbance effect on the shell side material, and then ensure the heat exchange efficiency of the coiled heat exchanger. At the same time, the rotating section 512 and the connecting section 511 rotate relative to each other, so as to ensure that the disturbance blade 52 can normally disturb the shell side material.

[0059] Better, refer to Figure 5 The rotating section 512 is hollow inside, which can reduce the weight of the rotating shaft 51, so as to reduce the driving force required for the rotating shaft 51 to rotate, so as to ensure that the disturbance blades 52 can rotate under the action of the transmission shaft 61, so as to ensure the disturbance effect on the shell-side material. The connecting section 511 is provided with a connecting rod 621 extending into the rotating section 512, which can realize the rotational connection between the rotating section 512 and the connecting section 511 on the one hand, and increase the connection stability between the connecting section 511 and the rotating section 512 on the other hand.

[0060] Further, see Figure 5 and Figure 6 , the connecting rod 621 is provided with an annular groove 622, a snap ring 623 is provided in the annular groove 622, and a snap groove 513 for accommodating the snap ring 623 is provided inside the rotating section 512, that is, after the connecting section 511 and the rotating section 512 are connected together, part of the snap ring 623 is located in the annular groove 622, and the remaining part of the snap ring 623 is located in the snap groove 513, so that the snap ring 623 limits the connecting rod 621 and the rotating section 512 to avoid the situation that the connecting rod 621 may be separated from the rotating section 512, thereby increasing the connection stability of the connecting section 511 and the rotating section 512. In addition, the provision of the snap ring 623 can also increase the sealing between the connecting section 511 and the rotating section 512 to prevent the shell side material from entering the rotating section 512.

[0061] Further, refer to Figure 6 and Figure 7The guide surface 624 is provided on one side of the snap ring 623 facing the inside of the rotating section 512, so that when assembling the rotating shaft 51, the connecting rod 621 is first aligned with the rotating section 512, and then the connecting rod 621 is extended into the rotating section 512 so that the guide surface 624 contacts the pipe mouth of the rotating section 512, and then the connecting section 511 is pressed continuously so that the connecting section 511 applies pressure to the snap ring 623 through the annular groove 622, and the snap ring 623 is deformed under the action of the guide surface 624, and then the snap ring 623 enters the rotating section 512 and slides relative to the rotating section 512. When the snap ring 623 moves to the snap groove 513, the snap ring 623 recovers its deformation so that the snap ring 623 enters the snap groove 513, thereby completing the assembly of the rotating shaft 51. In this process, the need to manually apply pressure to the snap ring 623 is avoided, thereby achieving the effect of facilitating the assembly of the rotating shaft 51.

[0062] Specifically, refer to Figure 7 The snap ring 623 is elastic and is provided with a deformation notch. When the snap ring 623 is deformed under the action of the connecting section 511, the distance between the deformation notch and the two mouth walls changes to ensure the deformation of the snap ring 623, thereby enabling the snap ring 623 to enter the rotating section 512, so as to facilitate the connection of the connecting section 511 with the rotating connecting section 511.

[0063] The present application does not specifically limit the connection method between the rotating shaft 51 and the tube sheet 3. Preferably, one end of the rotating shaft 51 is passed through one of the tube sheets 3 and is sealed therewith, and the other end of the rotating shaft 51 is fixedly connected to the other tube sheet 3. That is to say, the rotating section 512 is passed through one of the tube sheets 3 and is sealed therewith, and the connecting section 511 is fixedly connected to the other tube sheet 3, so as to increase the stability of the rotating shaft 51, thereby ensuring the disturbance effect on the shell side material, so as to ensure the heat exchange efficiency of the coiled tube heat exchanger.

[0064] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0065] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0066] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A wound tube heat exchanger, comprising a shell (1) and two tube boxes (2) respectively arranged at both ends of the shell (1), the two ends of the circumferential side of the shell (1) are respectively provided with a shell-side material inlet (12) and a shell-side material outlet (11), the two tube boxes (2) are respectively provided with a tube-side material inlet (21) and a tube-side material outlet (22), a tube sheet (3) is arranged between each tube box (2) and the shell (1), a heat exchange tube (4) is arranged helically along the axial direction of the shell (1) between the two tube sheets (3), the two ends of the heat exchange tube (4) are respectively penetrated through the tube sheets (3), characterized in that: The shell (1) is provided with a disturbance member (5), and the shell-side material inlet (12) is provided with a driving member (6) drivingly connected to the disturbance member (5). When the shell-side material enters the shell (1) through the shell-side material inlet (12), the driving member (6) drives the disturbance member (5) to rotate under the action of the shell-side material to disturb the shell-side material in the shell (1).

2. A coiled heat exchanger according to claim 1, characterized in that: The driving member (6) comprises a transmission shaft (61) rotatably connected to the housing (1) and a fan blade (62) arranged on the transmission shaft (61); the transmission shaft (61) is transmission-connected to the disturbance member (5).

3. A coiled heat exchanger according to claim 2, characterized in that: The disturbance member (5) comprises a rotating shaft (51) and a disturbance blade (52) arranged on the rotating shaft (51); the disturbance blade (52) is spirally arranged along the axial direction of the rotating shaft (51); and the rotating shaft (51) is transmission-connected to the transmission shaft (61).

4. A coiled heat exchanger according to claim 3, characterized in that: The disturbance blade (52) is provided with multiple sections, and the spiral directions of two adjacent sections of the disturbance blade (52) are arranged in opposite directions to each other.

5. The coiled tube heat exchanger according to claim 3, characterized in that: The transmission shaft (61) is provided with a first bevel gear (613), and the rotating shaft (51) is provided with a second bevel gear (514) meshingly connected to the first bevel gear (613).

6. A coiled heat exchanger according to claim 5, characterized in that: The rotating shaft (51) comprises a connecting section (511) and a rotating section (512) rotatably connected to the connecting section (511); the disturbance blade (52) and the second bevel gear (514) are arranged on the rotating section (512); and the transmission shaft (61) is extended to be provided with a support rod (625), and the support rod (625) extends into the connecting section (511).

7. A coiled heat exchanger according to claim 6, characterized in that: The rotating section (512) is hollow inside, and the connecting section (511) is provided with a connecting rod (621) extending into the rotating section (512).

8. A coiled heat exchanger according to claim 7, characterized in that: The connecting rod (621) is provided with an annular groove (622), a snap ring (623) is provided in the annular groove (622), and a snap groove (513) for accommodating the snap ring (623) is provided inside the rotating section (512).

9. A coiled heat exchanger according to claim 8, characterized in that: A guide surface (624) is provided on one side of the clamping ring (623) facing the interior of the rotating section (512).

10. The coiled tube heat exchanger according to claim 2, characterized in that: The transmission shaft (61) is sleeved with a support tube (611) on its exterior, and the support tube (611) is fixedly connected to the shell-side material inlet (12) via a fixing rod (612).

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