Steam distribution and condensation water return equipment for cut tobacco dryer
By designing a wire dryer equipment that integrates steam distributor and condensation and return water functions, the problems of complex structure and large space occupancy of traditional equipment are solved, and a more compact structure and effective condensate recovery are achieved.
Patent Information
- Application Number
- CN202510123347.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2025-04-18
AI Technical Summary
The steam distribution and condensation and return water equipment of traditional wire dryers are complex in structure and occupy a large space, which leads to inconvenient arrangement.
A device that integrates steam distributor and condensation return water function is designed, and the hollow cavity is divided into a steam collection chamber and a condensation water collection chamber through a partition, and the connection and recovery of steam and condensation water are achieved through a central drainage pipe.
It reduces structural complexity, improves compactness, reduces space occupation, facilitates layout in the workshop, and realizes effective recycling and treatment of condensate.
Smart Images
Figure CN119837285A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cigarettes, and in particular to a steam distribution and condensation water return device for a tobacco drying machine. Background Art
[0002] The tobacco drying machine in the tobacco-making workshop of a cigarette manufacturing enterprise is the main core production equipment. The tobacco drying machine is mainly used in the tobacco drying process to achieve the drying and shaping of tobacco materials. The traditional drum-type tobacco drying machine uses steam to heat the thin plate in the cylinder. The steam enters the drying cylinder through the steam conveying pipe connected to the steam distributor. The steam conveying pipe is arranged on the thin plate in the cylinder to achieve the temperature increase of the thin plate in the cylinder, so that the material contacts the surface of the thin plate (heat exchange plate) when passing through the cylinder to achieve drying and dehydration. After the steam exchanges heat with the thin plate through the conveying pipe, the steam temperature drops and liquefies into condensed water. In order to recycle the condensed water, a condensed water recovery device needs to be arranged at one end of the drying cylinder away from the steam distributor. The condensed water recovery device needs to rotate synchronously with the drying cylinder and the steam distributor. The structure installed between the condensed water recovery device and the drying cylinder is complicated, and the entire tobacco drying machine structure is large in volume, occupies a large space, and is inconvenient to arrange.
[0003] Therefore, a steam distribution and condensation water return device for a silk drying machine is needed to solve the above problems. Summary of the invention
[0004] The object of the present invention is to provide a steam distribution and condensation water return device for a tobacco drying machine, which can reduce the complexity of the structure, improve the compactness of the structure, reduce the space occupation, and facilitate layout in a workshop.
[0005] To achieve this object, the present invention adopts the following technical solutions:
[0006] Steam distribution and condensation water return equipment for wire drying machine, including:
[0007] A steam distributor, comprising a hollow cavity, wherein a partition is arranged in the hollow cavity, wherein the partition divides the hollow cavity into a steam collecting cavity and a condensed water collecting cavity, wherein the steam collecting cavity and the condensed water collecting cavity are connected via a steam delivery pipe;
[0008] A rotary joint is coaxially arranged with the steam distributor, a first end of the rotary joint is fixedly inserted into the steam distributor, and the rotary joint is communicated with the steam collecting chamber;
[0009] A steam intake device is coaxially arranged with the rotary joint, and the second end of the rotary joint is rotatably arranged in the steam intake device;
[0010] A condensate drainer, the condensate drainer being arranged at an end of the steam inlet device away from the rotary joint;
[0011] A central drain pipe is passed through the partition, the rotary joint and the steam intake device, one end of the central drain pipe is connected to the condensate collection chamber, and the other end of the central drain pipe is connected to the condensate drainer.
[0012] In some embodiments, a plurality of exhaust pipes and a plurality of return pipes are spaced apart on the steam distributor along the circumference of the steam distributor, and the plurality of exhaust pipes and the plurality of return pipes are arranged in one-to-one correspondence, the exhaust pipes are connected to the steam collecting chamber, the return pipes are connected to the condensate collecting chamber, and the corresponding exhaust pipes are connected to the return pipes through the steam delivery pipe.
[0013] In some embodiments, the central drain pipe includes a water collecting section, a bellows section and a condensate discharge section connected in sequence, the distance between the bellows section and the end of the water collecting section is smaller than the distance between the bellows section and the condensate discharge section, part of the water collecting section is located in the condensate collection chamber, and the end of the condensate discharge section is located in the condensate drainer.
[0014] In some embodiments, the central drain pipe is provided with a first sealing assembly and a second sealing assembly, the first sealing assembly is located between the water collecting section and the partition, and the second sealing assembly is located between the condensate discharge section and the steam intake device.
[0015] In some embodiments, the second sealing assembly includes a servo sealing sleeve and a locking positioning assembly, the servo sealing sleeve is mounted on the condensate discharge section, and the locking positioning assembly is arranged at an end of the steam intake device away from the steam distributor, and the locking positioning assembly is used to prevent the servo sealing sleeve from moving axially along the condensate discharge section.
[0016] In some embodiments, the locking and positioning assembly includes a compression sleeve and a stopping locking sleeve, the compression sleeve is mounted on the condensate discharge section, the compression sleeve is threadedly connected to the steam intake device, and one end of the compression sleeve is abutted against the servo sealing sleeve, the stopping locking sleeve is mounted on the compression sleeve, the stopping locking sleeve is threadedly connected to the compression sleeve, and one end of the stopping locking sleeve is fitted against the steam intake device.
[0017] In some embodiments, it also includes a connecting assembly and a plurality of fasteners, one end of the steam distributor has a first connecting flange, the connecting assembly includes a second connecting flange and a tapered sleeve, the tapered sleeve is sleeved on the rotary joint, the second connecting flange has a mounting hole with the same taper as the tapered sleeve, the second connecting flange is sleeved on the tapered sleeve, so that the tapered sleeve can be tightened and hooped on the rotary joint, a plurality of the fasteners are arranged at equal intervals along the circumference of the first connecting flange, and the plurality of the fasteners connect the first connecting flange and the second connecting flange.
[0018] In some embodiments, a connecting rod is provided on the condensate discharge section along the radial direction of the condensate discharge section, a positioning groove is provided on the crimping ring provided at the first end of the rotary joint, and the end of the connecting rod is located in the positioning groove.
[0019] In some embodiments, the steam intake device includes a steam intake pipe and a docking sleeve that are coaxially arranged and interconnected, the second end of the rotary joint is located in the docking sleeve, the second end fixed sleeve of the rotary joint is provided with a bearing, and the outer ring of the bearing is fixedly inserted into the docking sleeve.
[0020] In some embodiments, a third sealing assembly is arranged between the steam intake pipe and the docking sleeve, and the third sealing assembly includes a bellows sealing tube, a sealing ring and a support ring. The bellows sealing tube is arranged in the steam intake pipe, one end of the bellows sealing tube abuts against one end of the sealing ring, and the other end of the sealing ring abuts against the inner ring end face of the bearing, and the support ring is fixedly sleeved on the sealing ring, and the support ring abuts against the outer ring end face of the bearing.
[0021] Beneficial effects of the present invention:
[0022] The present invention provides a steam distribution and condensation water return device for a wire drying machine, a steam distributor, having a hollow cavity, a partition plate arranged in the hollow cavity, the partition plate divides the hollow cavity into a steam collection chamber and a condensation water collection chamber, and the steam collection chamber and the condensation water collection chamber are connected through a steam conveying pipe. The steam intake device is connected to the steam distributor through a rotary joint, and the condensation drainer is arranged at one end of the steam intake device away from the rotary joint. The central drain pipe is passed through the partition plate, the rotary joint and the steam intake device, one end of the central drain pipe is connected to the condensation water collection chamber, and the other end of the central drain pipe is connected to the condensation drainer. Steam enters through the steam intake device, enters the steam collection chamber of the steam distributor through the rotary joint, and then enters the steam conveying pipe to heat the thin plate in the drying cylinder. After the heat exchange is completed, the steam temperature is reduced and condensed into the condensation water collection chamber, and then discharged into the condensation drainer through the central drain pipe. By integrating the steam collection chamber and the condensate collection chamber on the steam distributor, the condensate can be recovered and processed while heating the drying drum, which improves the compactness of the structure, reduces space occupation, and is easy to arrange in the workshop. In addition, the condensate drainer is fixed, which is easy to arrange and reduces the complexity of the structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.
[0024] Figure 1 It is a schematic diagram of a steam distribution and condensation water return device for a silk drying machine of the present invention;
[0025] Figure 2 It is a cross-sectional view of a steam distribution and condensation water return device for a wire drying machine of the present invention;
[0026] Figure 3 yes Figure 2 A partial enlarged view of the middle A;
[0027] Figure 4 It is a schematic diagram of a central drain pipe in a steam distribution and condensation water return device for a silk drying machine of the present invention.
[0028] In the figure:
[0029] 1. Steam distributor; 11. Partition; 12. Steam collecting chamber; 13. Condensate collecting chamber; 14. First connecting flange; 15. Return pipe; 16. Exhaust pipe; 2. Rotary joint; 21. Crimp ring; 22. Bearing; 23. Bushing; 3. Connecting assembly; 31. Second connecting flange; 32. Cone sleeve; 4. Steam inlet; 41. Steam inlet pipe; 42. Docking sleeve; 5. Condensate drainer; 6. Center drain pipe; 61. Water collecting section; 62. Bellows section; 63. Condensate discharge section; 64. Connecting rod; 7. Third sealing assembly; 71. Bellows sealing pipe; 72. Sealing ring; 73. Support ring; 8. Second sealing assembly; 81. Servo sealing sleeve; 82. Compression sleeve; 83. Stop locking sleeve; 9. First sealing assembly; 91. First sealing ring. DETAILED DESCRIPTION
[0030] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.
[0031] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.
[0032] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.
[0033] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.
[0035] In the process of manufacturing the tofu drying machine, in order to reduce the complexity of the structure, improve the compactness of the structure, reduce the space occupied, and facilitate layout in the workshop, such as Figure 1-Figure 4 As shown, the present invention provides a steam distribution and condensation water return device for a wire drying machine. The steam distribution and condensation water return device for a wire drying machine comprises a steam distributor 1, a rotary joint 2, a steam intake device, a condensation drainer 5 and a central drain pipe 6.
[0036] The steam distributor 1 has a hollow cavity, in which a partition 11 is arranged. The partition 11 divides the hollow cavity into a steam collecting cavity 12 and a condensate collecting cavity 13. The steam collecting cavity 12 and the condensate collecting cavity 13 are connected through a steam delivery pipe. The rotary joint 2 is coaxially arranged with the steam distributor 1. The first end of the rotary joint 2 is fixedly penetrated in the steam distributor 1, and the rotary joint 2 is connected with the steam collecting cavity 12. The steam intake device is coaxially arranged with the rotary joint 2. The second end of the rotary joint 2 is rotatably penetrated in the steam intake device. The condensate drainer 5 is arranged at one end of the steam intake device away from the rotary joint 2. The central drain pipe 6 is penetrated in the partition 11, the rotary joint 2 and the steam intake device. One end of the central drain pipe 6 is connected with the condensate collecting cavity 13, and the other end of the central drain pipe 6 is connected with the condensate drainer 5.
[0037] Steam enters through the steam intake device, enters the steam collection chamber 12 of the steam distributor 1 through the rotary joint 2, and then enters the steam delivery pipe to heat the thin plate in the drying drum. After the heat exchange is completed, the steam temperature is reduced and condensed into the condensate collection chamber 13, and then discharged into the condensate drainer 5 through the central drain pipe 6. By integrating the steam collection chamber 12 and the condensate collection chamber 13 on the steam distributor 1, the condensate can be recovered and processed while heating the drying drum, thereby improving the compactness of the structure, reducing space occupancy, and facilitating layout in the workshop. In addition, the condensate drainer 5 is fixedly arranged, which is convenient for layout and reduces the complexity of the structure.
[0038] In some embodiments, multiple exhaust pipes 16 and multiple return pipes 15 are arranged on the steam distributor 1 at intervals along the circumference of the steam distributor 1. The multiple exhaust pipes 16 and the multiple return pipes 15 are arranged one by one. The exhaust pipes 16 are connected to the steam collection chamber 12, and the return pipes 15 are connected to the condensed water collection chamber 13. The corresponding exhaust pipes 16 and the return pipes 15 are connected through the steam conveying pipe. Specifically, the steam enters the steam conveying pipe through the exhaust pipe 16, and the steam conveying pipe is fixedly connected to the thin plate in the drying cylinder. The temperature of the thin plate in the cylinder is increased through heat exchange, so that the material contacts the surface of the thin plate (heat exchange plate) when passing through the cylinder to achieve drying and dehydration. The steam in the steam conveying pipe is cooled and liquefied into condensed water, which enters the condensed water collection chamber 13 through the return pipe 15, and then is discharged through the central drain pipe 6 penetrating the steam distributor 1 and the rotary joint 2. Through the above arrangement, steam distribution, wire drying and condensed water recovery can be effectively achieved, and the structure is simple and easy to manufacture.
[0039] In some embodiments, the central drain pipe 6 includes a water collection section 61, a bellows section 62 and a condensate discharge section 63 connected in sequence, the distance between the bellows section 62 and the end of the water collection section 61 is smaller than the distance between the bellows section 62 and the condensate discharge section 63, part of the water collection section 61 is located in the condensate collection chamber 13, and the end of the condensate discharge section 63 is located in the condensate drain 5. By adding the bellows section 62 to the central drain pipe 6, the circumferential circular runout transmitted during the operation of the steam distributor 1 can be compensated and absorbed, thereby eliminating the influence of the circumferential circular runout of the steam distributor 1 on the central drain pipe 6, and the bellows section 62 can eliminate the radial error of the entire central drain pipe 6 during the installation process.
[0040] In some embodiments, a first sealing assembly 9 and a second sealing assembly 8 are sleeved on the central drain pipe 6. The first sealing assembly 9 is located between the water collecting section 61 and the partition 11, and the second sealing assembly 8 is located between the condensate discharge section 63 and the steam intake device. By providing the first sealing assembly 9 and the second sealing assembly 8, steam leakage can be effectively prevented.
[0041] In some embodiments, the first sealing assembly 9 includes a first sealing ring 91, which is sleeved on the water collecting section 61 and abuts against the partition 11, thereby effectively sealing the gap between the partition 11 and the water collecting section 61 and preventing steam from leaking through the gap between the partition 11 and the water collecting section 61.
[0042] In some embodiments, the second sealing assembly 8 includes a servo sealing sleeve 81 and a locking and positioning assembly. The servo sealing sleeve 81 is sleeved on the condensate discharge section 63, and the locking and positioning assembly is arranged at one end of the steam intake device away from the steam distributor 1. The locking and positioning assembly is used to prevent the servo sealing sleeve 81 from moving axially along the condensate discharge section 63. The servo sealing sleeve 81 is provided to seal the gap between the condensate discharge section 63 and the steam intake device, thereby preventing steam from leaking through the gap between the condensate discharge section 63 and the steam intake device. The position of the servo sealing sleeve 81 can be locked by the locking and positioning assembly. Since the condensate discharge section 63 and the steam intake device are dynamically sealed, after the servo sealing sleeve 81 is worn, the servo sealing sleeve 81 can be removed and replaced by simply removing the condensate drainer 5 and the locking and positioning assembly, thereby facilitating maintenance.
[0043] In some embodiments, the locking and positioning assembly includes a compression sleeve 82 and a stop locking sleeve 83. The compression sleeve 82 is sleeved on the condensate discharge section 63, the compression sleeve 82 is threadedly connected to the steam intake device, and one end of the compression sleeve 82 abuts against the servo sealing sleeve 81. The stop locking sleeve 83 is sleeved on the compression sleeve 82, and the stop locking sleeve 83 is threadedly connected to the compression sleeve 82, and one end of the stop locking sleeve 83 abuts against the steam intake device. Through the above configuration, the compression sleeve 82 is locked by the stop locking sleeve 83, and the compression sleeve 82 abuts against the servo sealing sleeve 81, thereby locking the servo sealing sleeve 81.
[0044] In some embodiments, the steam distribution and condensation water return equipment for the wire drying machine further includes a connection assembly 3 and a plurality of fasteners. One end of the steam distributor 1 has a first connection flange 14. The connection assembly 3 includes a second connection flange 31 and a tapered sleeve 32. The tapered sleeve 32 is sleeved on the rotary joint 2. The second connection flange 31 has a mounting hole with the same taper as the tapered sleeve 32. The second connection flange 31 is sleeved on the tapered sleeve 32 so that the tapered sleeve 32 can be tightened and mounted on the rotary joint 2. A plurality of fasteners are arranged at equal intervals along the circumference of the first connection flange 14, and a plurality of fasteners connect the first connection flange 14 and the second connection flange 31. In the process of fasteners connecting and tightening the first connection flange 14 and the second connection flange 31, since the second connection flange 31 has a tapered mounting hole that cooperates with the tapered sleeve 32, automatic centering adjustment can be achieved, and while the rotary joint 2 and the steam distributor 1 are docked, the coaxiality of the rotary joint 2 and the steam distributor 1 is ensured, thereby reducing the circumferential runout of the rotary joint 2.
[0045] In some embodiments, an opening is provided on the cone sleeve 32. With the above arrangement, when the first connecting flange 14 and the second connecting flange 31 are matched and tightened and fixed by a plurality of fasteners, the first connecting flange 14 moves along the axial direction of the rotary joint 2, thereby squeezing the cone sleeve 32, shrinking the opening, and thus being clamped on the rotary joint 2.
[0046] In some embodiments, a connecting rod 64 is provided on the condensate discharge section 63 along the radial direction of the condensate discharge section 63, and a positioning groove is provided on the crimping ring 21 provided at the first end of the rotary joint 2, and the end of the connecting rod 64 is located in the positioning groove. Through the cooperation between the connecting rod 64 and the positioning groove, when the steam distributor 1 drives the rotary joint 2 to rotate, the rotary joint 2 synchronously drives the central drain pipe 6 to rotate through the connecting rod 64, so that the central drain pipe 6 and the steam distributor 1 are relatively stationary, preventing the first sealing ring 91 from being worn.
[0047] In some embodiments, a second sealing ring is provided between the crimping ring 21 and the steam distributor 1. By providing the second sealing ring, the gap between the crimping ring 21 and the steam distributor 1 can be effectively blocked, thereby preventing steam from leaking through the gap between the crimping ring 21 and the steam distributor 1.
[0048] In some embodiments, the steam intake device includes a steam intake pipe 41 and a docking sleeve 42 which are coaxially arranged and interconnected, the second end of the rotary joint 2 is located in the docking sleeve 42, and the second end of the rotary joint 2 is fixedly sleeved with a bearing 22, and the outer ring of the bearing 22 is fixedly inserted into the docking sleeve 42. Specifically, in order to ensure that the rotary joint 2 rotates smoothly relative to the docking sleeve 42, in this embodiment, two bearings 22 are fixedly sleeved on the rotary joint 2, and the two bearings 22 are separated by a bushing 23. By providing the bearings 22, the smoothness of the rotation of the rotary joint 2 relative to the steam intake device can be ensured. By designing the steam intake device as a steam intake pipe 41 and a docking sleeve 42, the steam intake pipe 41 and the docking sleeve 42 are connected by a flange, which facilitates the installation of the bearing 22.
[0049] In some embodiments, a third sealing assembly 7 is provided between the steam intake pipe 41 and the docking sleeve 42. The third sealing assembly 7 includes a bellows sealing tube 71, a sealing ring 72 and a support ring 73. The bellows sealing tube 71 is provided in the steam intake pipe 41. One end of the bellows sealing tube 71 abuts against one end of the sealing ring 72. The other end of the sealing ring 72 abuts against the inner ring end face of the bearing 22. The support ring 73 is fixedly sleeved on the sealing ring 72, and the support ring 73 abuts against the outer ring end face of the bearing 22. Through the above arrangement, the gap between the steam intake pipe 41 and the docking sleeve 42 can be effectively blocked, thereby preventing steam from leaking through the gap between the steam intake pipe 41 and the docking sleeve 42.
[0050] In some embodiments, the sealing ring 72 is a graphite sealing ring. The graphite sealing ring is suitable for sealing equipment under high temperature, high pressure and strong corrosive media, and the graphite gasket has self-lubricating properties, can be used stably for a long time under harsh working conditions, and is corrosion-resistant, non-aging, and non-brittle, and can effectively meet the sealing requirements between the steam intake pipe 41 and the docking sleeve 42.
[0051] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.
Claims
1. Steam distribution and condensation water return equipment for silk drying machine, characterized in that: include: A steam distributor (1) comprises a hollow cavity, wherein a partition (11) is arranged in the hollow cavity, wherein the partition (11) divides the hollow cavity into a steam collecting cavity (12) and a condensed water collecting cavity (13), wherein the steam collecting cavity (12) and the condensed water collecting cavity (13) are connected via a steam delivery pipe; A rotary joint (2) is coaxially arranged with the steam distributor (1), a first end of the rotary joint (2) is fixedly inserted into the steam distributor (1), and the rotary joint (2) is in communication with the steam collecting chamber (12); A steam intake device is coaxially arranged with the rotary joint (2), and the second end of the rotary joint (2) is rotatably arranged in the steam intake device; A condensate drainer (5), the condensate drainer (5) being arranged at an end of the steam intake device away from the rotary joint (2); A central drain pipe (6), wherein the central drain pipe (6) is passed through the partition (11), the rotary joint (2) and the steam intake device, one end of the central drain pipe (6) is connected to the condensate collection chamber (13), and the other end of the central drain pipe (6) is connected to the condensate drainer (5).
2. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 1, characterized in that: A plurality of exhaust pipes (16) and a plurality of return pipes (15) are arranged at intervals on the steam distributor (1) along the circumference of the steam distributor (1), and the plurality of exhaust pipes (16) and the plurality of return pipes (15) are arranged in a one-to-one correspondence. The exhaust pipes (16) are connected to the steam collecting chamber (12), and the return pipes (15) are connected to the condensate collecting chamber (13). The corresponding exhaust pipes (16) and the return pipes (15) are connected via the steam delivery pipe.
3. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 1, characterized in that: The central drain pipe (6) comprises a water collecting section (61), a bellows section (62) and a condensate discharge section (63) which are connected in sequence, wherein the distance between the bellows section (62) and the end of the water collecting section (61) is smaller than the distance between the bellows section (62) and the condensate discharge section (63), a portion of the water collecting section (61) is located in the condensate collecting chamber (13), and the end of the condensate discharge section (63) is located in the condensate drainer (5).
4. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 3, characterized in that: The central drain pipe (6) is provided with a first sealing component (9) and a second sealing component (8), wherein the first sealing component (9) is located between the water collecting section (61) and the partition (11), and the second sealing component (8) is located between the condensate discharge section (63) and the steam intake device.
5. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 4, characterized in that: The second sealing assembly (8) comprises a servo sealing sleeve (81) and a locking and positioning assembly, wherein the servo sealing sleeve (81) is sleeved on the condensate discharge section (63), and the locking and positioning assembly is arranged at one end of the steam intake device away from the steam distributor (1), and the locking and positioning assembly is used to prevent the servo sealing sleeve (81) from moving axially along the condensate discharge section (63).
6. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 5, characterized in that: The locking and positioning assembly includes a compression sleeve (82) and a stop locking sleeve (83), the compression sleeve (82) is sleeved on the condensate discharge section (63), the compression sleeve (82) is threadedly connected to the steam intake device, and one end of the compression sleeve (82) is in contact with the servo sealing sleeve (81), the stop locking sleeve (83) is sleeved on the compression sleeve (82), and the stop locking sleeve (83) is threadedly connected to the compression sleeve (82), and one end of the stop locking sleeve (83) is in contact with the steam intake device.
7. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 1, characterized in that: It also includes a connecting assembly (3) and a plurality of fasteners. One end of the steam distributor (1) has a first connecting flange (14). The connecting assembly (3) includes a second connecting flange (31) and a tapered sleeve (32). The tapered sleeve (32) is sleeved on the rotary joint (2). The second connecting flange (31) has a mounting hole with the same taper as the tapered sleeve (32). The second connecting flange (31) is sleeved on the tapered sleeve (32) so that the tapered sleeve (32) can be tightened and mounted on the rotary joint (2). The plurality of fasteners are arranged at equal intervals along the circumference of the first connecting flange (14), and the plurality of fasteners connect the first connecting flange (14) and the second connecting flange (31).
8. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 3, characterized in that: A connecting rod (64) is arranged on the condensate discharge section (63) along the radial direction of the condensate discharge section (63), and a positioning groove is provided on the crimping ring (21) arranged at the first end of the rotary joint (2), and the end of the connecting rod (64) is located in the positioning groove.
9. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 1, characterized in that: The steam intake device comprises a steam intake pipe (41) and a butt sleeve (42) which are coaxially arranged and connected to each other, the second end of the rotary joint (2) is located in the butt sleeve (42), the second end fixed sleeve of the rotary joint (2) is provided with a bearing (22), and the outer ring of the bearing (22) is fixedly inserted into the butt sleeve (42).
10. The steam distribution and condensation water return equipment for a tobacco drying machine according to claim 9, characterized in that: A third sealing assembly (7) is arranged between the steam intake pipe (41) and the docking sleeve (42), and the third sealing assembly (7) comprises a bellows sealing tube (71), a sealing ring (72) and a support ring (73). The bellows sealing tube (71) is arranged in the steam intake pipe (41), one end of the bellows sealing tube (71) abuts against one end of the sealing ring (72), the other end of the sealing ring (72) abuts against the inner ring end face of the bearing (22), and the support ring (73) is fixedly sleeved on the sealing ring (72), and the support ring (73) abuts against the outer ring end face of the bearing (22).