Central drain pipe structure and cut tobacco dryer
By designing the central drainage pipe structure, including the water collection section, the corrugated pipe section, and the sealing components, the problem of seal wear caused by the circumferential runout of the drying cylinder was solved, achieving effective steam sealing and wear reduction.
Patent Information
- Application Number
- CN202520173291.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-26
AI Technical Summary
In traditional wire drying machines, the central drain pipe causes rapid wear of the seals during the circumferential movement of the drying cylinder, resulting in steam leakage.
Design a central drain pipe structure including a water collection section, a corrugated pipe section and a condensate discharge section, equipped with first and second sealing components, utilizing the corrugated pipe section to compensate for circumferential runout, reduce radial error and prevent steam leakage.
It effectively prevents steam leakage, slows down seal wear, and improves the durability and sealing performance of the central drain pipe.
Smart Images
Figure CN223595313U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a cigarette technology field especially, a kind of center drain pipe structure and cut tobacco dryer. BACKGROUND
[0002] Cut tobacco dryer of cigarette production enterprise is the main core production equipment, and cut tobacco dryer is mainly used for tobacco drying process, realizes the drying of tobacco material. Traditional drum-type cut tobacco dryer utilizes steam to heat the thin plate in cylinder, realizes the temperature rise of thin plate in cylinder, and then makes material contact with the surface of thin plate (heat exchange plate) when passing through cylinder, to realize drying and dewatering. Steam passes through static steam inlet device and enters into the steam collection end of rotating steam distributor through rotary joint. Steam distributor distributes steam to the inside of synchronous rotating drying cylinder, to heat and dry tobacco. Center drain pipe is arranged in steam distributor and steam inlet device, and center drain pipe is used to discharge condensed water liquefied by steam from the condensed water recovery end of steam distributor. When cut tobacco dryer works, center drain pipe rotates synchronously with steam distributor.
[0003] During the operation of drying cylinder body, circumferential circle runout is transmitted to center drain pipe through steam distributor, which causes the sealing element between center drain pipe and steam distributor and between center drain pipe and steam inlet device to be rapidly worn, resulting in poor sealing performance and the problem of steam leakage.
[0004] Therefore, a center drain pipe structure and cut tobacco dryer are needed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of center drain pipe structure and cut tobacco dryer, can eliminate the influence of center drain pipe by drying cylinder circumferential circle runout, and slow down the wear of sealing element.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] Center drain pipe structure, comprising:
[0008] Center drain pipe body, the center drain pipe body includes water collecting section, corrugated pipe section and condensed water discharge section connected in sequence, the distance between the corrugated pipe section and the water collecting section end is less than the distance between the corrugated pipe section and the condensed water discharge section, part of the water collecting section is located in the condensed water recovery end of steam distributor, and the end of the condensed water discharge section extends relative to steam inlet device;
[0009] First sealing assembly, sleeved on the water collecting section, for realizing the sealing between the water collecting section and the steam collection end of the steam distributor;
[0010] A second sealing assembly is arranged on the condensate water discharge section to realize sealing between the condensate water discharge section and the steam inlet device.
[0011] In some embodiments, the first sealing assembly comprises a sealing ring, which is sleeved on the water collecting section.
[0012] In some embodiments, an installation ring groove is formed on the outer circumferential surface of the water collecting section, the sealing ring is embedded in the installation ring groove, and the outer circumferential surface of the sealing ring protrudes relative to the installation ring groove.
[0013] In some embodiments, an axial shoulder is arranged on the water collecting section, an end surface of the axial shoulder is attached to a partition plate in the steam distributor, and the partition plate is used to separate the condensate water recovery end and the steam collection end.
[0014] In some embodiments, a positioning rod is arranged on the condensate water discharge section in a radial direction of the condensate water discharge section, and the positioning rod can be connected with a rotating joint of a cut tobacco drying machine.
[0015] In some embodiments, at least two positioning rods are arranged on the condensate water discharge section at equal intervals in a circumferential direction.
[0016] In some embodiments, the second sealing assembly comprises a servo sealing sleeve and a locking positioning assembly, the servo sealing sleeve is sleeved on the condensate water discharge section, and the locking positioning assembly is arranged at an end of the steam inlet 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 water discharge section.
[0017] In some embodiments, the locking positioning assembly comprises a pressing sleeve, the pressing sleeve is sleeved on the condensate water discharge section, the pressing sleeve is screwed with the steam inlet device, and one end of the pressing sleeve abuts against the servo sealing sleeve.
[0018] In some embodiments, the locking positioning assembly further comprises a stop locking sleeve, the stop locking sleeve is sleeved on the pressing sleeve, and the stop locking sleeve is screwed with the pressing sleeve, and one end of the stop locking sleeve is attached to the steam inlet device.
[0019] The cut tobacco drying machine comprises the center drain pipe structure as described above.
[0020] The cut tobacco drying machine comprises the center drain pipe structure as described above.
[0021] The utility model provides a kind of center drain pipe structure, center drain pipe body includes water collecting section, bellows section and condensate discharge section connected in sequence, part water collecting section is located at the condensate recovery end of steam distributor, and the end of condensate discharge section is extended relative to steam air inlet device.First sealing assembly is sleeved on water collecting section, for realizing the sealing between water collecting section and the steam collection end of steam distributor.Second sealing assembly is arranged on condensate discharge section, for realizing the sealing between condensate discharge section and steam air inlet device.Effectively prevent steam leakage by using first sealing assembly and second sealing assembly, by adding bellows section in center drain pipe body, the circumferential circle jump transmitted in the operation process of cylinder can be compensated and absorbed, so as to eliminate the influence of center drain pipe by cylinder circumferential circle jump, and the radial error of whole center drain pipe body in the operation process can be eliminated by bellows section, and the sealing wear of first sealing assembly and second sealing assembly is slowed down.
[0022] The utility model provides a kind of cut tobacco dryer, including the center drain pipe structure as described above, can eliminate the influence of center drain pipe by cylinder circumferential circle jump, and slow down the wear of sealing element. ACCURACY OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings for the ordinary skilled in the art without creating labor.
[0024] Figure 1 It is the schematic view of the center drain pipe structure of the utility model,
[0025] Figure 2 It is the sectional view of the center drain pipe structure of the utility model,
[0026] Figure 3 It is Figure 2 The local enlarged view of A in Fig.
[0027] In the figure,
[0028] 100, steam distributor;110, condensate recovery end;120, steam collection end;130, partition plate;200, steam air inlet device;1, center drain pipe body;11, water collecting section;111, shaft shoulder;12, bellows section;13, condensate discharge section;14, positioning rod;2, first sealing assembly;21, sealing ring;3, second sealing assembly;31, servo sealing sleeve;32, pressing sleeve;33, stop locking sleeve. DETAILED DESCRIPTION
[0029] 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 following drawings. It is being explained, however, by way of example only and not by way of limitation.
[0030] In the present application, the terms "comprise", "contain", "include" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.
[0031] In the present application, the terms "connect", "couple", "coupled", "mount" can be direct connection, coupling or mounting, or indirect connection, coupling or mounting. For example, direct connection refers to the connection of two parts or components without the need to set an intermediate part, and indirect connection refers to the connection of two parts or components with at least one intermediate part, and the connection of the two parts or components is achieved through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.
[0032] In the present application, it will be understood by those of ordinary skill in the art that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.
[0033] In the present application, the terms "up", "down", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the application. In addition, it should also be understood in the context that when referring to one element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "up", "down", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the lower side, the lower left side, the lower right side, the lower front side and the lower back side, etc.
[0034] In the process of manufacturing a cut tobacco dryer, in order to eliminate the influence of the circumferential roundness of the drying cylinder on the central drain pipe and slow down the wear of the sealing element, such as Figures 1-3The utility model provides a center drain pipe structure. The center drain pipe structure comprises a center drain pipe body 1, a first sealing assembly 2 and a second sealing assembly 3.
[0035] The center drain pipe body 1 comprises a water collecting section 11, a corrugated pipe section 12 and a condensed water discharging section 13 connected in sequence, the distance from the corrugated pipe section 12 to the water collecting section 11 is less than the distance from the corrugated pipe section 12 to the condensed water discharging section 13, part of the water collecting section 11 is located at a condensed water recovery end 110 of a steam distributor 100, and the end of the condensed water discharging section 13 extends relative to a steam inlet device 200. The first sealing assembly 2 is sleeved on the water collecting section 11 and is used for sealing between the water collecting section 11 and a steam collecting end 120 of the steam distributor 100. The second sealing assembly 3 is arranged on the condensed water discharging section 13 and is used for sealing between the condensed water discharging section 13 and the steam inlet device 200.
[0036] The first sealing assembly 2 and the second sealing assembly 3 can effectively prevent steam leakage, the corrugated pipe section 12 added in the center drain pipe body 1 can compensate and absorb circumferential circle jumping transmitted in the running process of the cylinder body, so that the influence of the circumferential circle jumping of the drying cylinder on the center drain pipe is eliminated, and the radial error of the entire center drain pipe body 1 in the running process is eliminated, and the sealing wear of the first sealing assembly 2 and the second sealing assembly 3 is reduced.
[0037] In some embodiments, the first sealing assembly 2 comprises a sealing ring 21 sleeved on the water collecting section 11. By arranging the sealing ring 21, the gap between the water collecting section 11 and the steam collecting end 120 of the steam distributor 100 can be effectively blocked, and steam leakage through the gap between the water collecting section 11 and the steam collecting end 120 of the steam distributor 100 is prevented. In the embodiment, the sealing ring 21 can be made of silica gel or rubber, and the sealing effect can be ensured. Since the center drain pipe body 1 rotates synchronously with the steam distributor 100, the center drain pipe body 1 and the steam distributor 100 are relatively stationary, so that the damage to the sealing ring 21 can be reduced.
[0038] In some embodiments, an installation ring groove is formed in the outer circumferential surface of the water collecting section 11, the sealing ring 21 is embedded in the installation ring groove, and the outer circumferential surface of the sealing ring 21 protrudes relative to the installation ring groove. By arranging the installation ring groove, the sealing ring 21 can be positioned and installed conveniently.
[0039] In some embodiments, the water collecting section 11 is provided with a shaft shoulder 111, and an end surface of the shaft shoulder 111 is in abutment with a partition plate 130 in the steam distributor 100, the partition plate 130 being used to separate the condensed water recovery end 110 from the steam collecting end 120. By providing the shaft shoulder 111, the central drain pipe body 1 can be limited in the axial direction, so as to facilitate the positioning of the central drain pipe body 1 and the partition plate 130.
[0040] In some embodiments, a positioning rod 14 is fixedly arranged on the condensed water discharge section 13 in the radial direction of the condensed water discharge section 13, and the positioning rod 14 can be connected with a rotary joint of the cut tobacco dryer. By connecting the central drain pipe body 1 with the rotary joint through the positioning rod 14, the central drain pipe body 1 can be driven to rotate by the rotary joint.
[0041] In some embodiments, at least two positioning rods 14 are arranged equidistantly in the circumferential direction of the condensed water discharge section 13. By the above arrangement, the central drain pipe body 1 can be stably connected with the rotary joint, so as to ensure the stability of the rotation of the central drain pipe body 1.
[0042] In some embodiments, the second sealing assembly 3 comprises a servo sealing sleeve 31 and a locking and positioning assembly, the servo sealing sleeve 31 being sleeved on the condensed water discharge section 13, and the locking and positioning assembly being arranged at an end of the steam inlet device 200 away from the steam distributor 100, the locking and positioning assembly being used to prevent the servo sealing sleeve 31 from moving axially along the condensed water discharge section 13. By sealing the gap between the condensed water discharge section 13 and the steam inlet device 200 through the servo sealing sleeve 31, the steam can be prevented from leaking through the gap between the condensed water discharge section 13 and the steam inlet device 200. The position of the servo sealing sleeve 31 can be locked through the locking and positioning assembly.
[0043] In some embodiments, the locking and positioning assembly comprises a pressing sleeve 32, the pressing sleeve 32 being sleeved on the condensed water discharge section 13, the pressing sleeve 32 being screwed with the steam inlet device 200, and one end of the pressing sleeve 32 being in abutment with the servo sealing sleeve 31. By screwing the pressing sleeve 32 with the steam inlet device 200, the position of the servo sealing sleeve 31 on the condensed water discharge section 13 is defined.
[0044] In some embodiments, the locking and positioning assembly further comprises a stop locking sleeve 33, the stop locking sleeve 33 being sleeved on the pressing sleeve 32, and the stop locking sleeve 33 being screwed with the pressing sleeve 32, one end of the stop locking sleeve 33 being in abutment with the steam inlet device 200. By providing the stop locking sleeve 33, the position of the pressing sleeve 32 on the steam inlet device 200 can be locked, so as to indirectly limit the movement of the servo sealing sleeve 31.
[0045] The example also provides a cut tobacco dryer, which comprises the central drain pipe structure as above, can eliminate the influence of the circumferential circle runout of the drying cylinder on the central drain pipe, and slow down the wear of the first sealing assembly 2 and the second sealing assembly 3.
[0046] Obviously, the above examples of the utility model are only for clear illustration of the utility model, and are not a limitation on the implementation modes of the utility model. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the implementation modes are not required or can not be exhausted. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A central drain structure, characterized by, The application relates to a center drain pipe structure, which comprises the following components: a center drain pipe body (1) which comprises a water collecting section (11), a corrugated pipe section (12) and a condensate water discharging section (13) connected in sequence, the distance between the corrugated pipe section (12) and the water collecting section (11) is less than the distance between the corrugated pipe section (12) and the condensate water discharging section (13), part of the water collecting section (11) is located at a condensate water recovery end (110) of a steam distributor (100), and the end of the condensate water discharging section (13) extends towards a steam inlet device (200); a first sealing assembly (2) which is sleeved on the water collecting section (11) and is used for realizing the sealing between the water collecting section (11) and a steam collecting end (120) of the steam distributor (100); a second sealing assembly (3) which is arranged on the condensate water discharging section (13) and is used for realizing the sealing between the condensate water discharging section (13) and the steam inlet device (200).
2. The central drain structure of claim 1, wherein, The first sealing assembly (2) comprises a sealing ring (21) which is sleeved on the water collecting section (11).
3. The central drain structure of claim 2, wherein, An installation ring groove is formed in the outer circumferential surface of the water collecting section (11), the sealing ring (21) is embedded in the installation ring groove, and the outer circumferential surface of the sealing ring (21) protrudes relative to the installation ring groove.
4. The center drain structure of claim 1, wherein, An axial shoulder (111) is arranged on the water collecting section (11), the end surface of the axial shoulder (111) is attached to a partition plate (130) in the steam distributor (100), and the partition plate (130) is used for partitioning the condensate water recovery end (110) and the steam collecting end (120).
5. The center drain structure of claim 1, wherein, Positioning rods (14) are arranged on the condensate water discharging section (13) along the radial direction of the condensate water discharging section (13), and the positioning rods (14) can be connected with a rotating joint of a cut tobacco drying machine.
6. The central drain structure of claim 5, wherein, At least two positioning rods (14) are arranged on the condensate water discharging section (13) along the circumferential direction at equal intervals.
7. The center drain structure of claim 1, wherein, The second sealing assembly (3) comprises a servo sealing sleeve (31) and a locking and positioning assembly, the servo sealing sleeve (31) is sleeved on the condensate water discharging section (13), the locking and positioning assembly is arranged at the end of the steam inlet device (200) away from the steam distributor (100), and the locking and positioning assembly is used for preventing the servo sealing sleeve (31) from moving axially along the condensate water discharging section (13).
8. The central drain structure of claim 7, wherein, The locking and positioning assembly comprises a pressing sleeve (32) which is sleeved on the condensate water discharging section (13), the pressing sleeve (32) is screwed with the steam inlet device (200), and one end of the pressing sleeve (32) abuts against the servo sealing sleeve (31).
9. The central drain structure of claim 8, wherein, The locking and positioning assembly further comprises a stop locking sleeve (33) which is sleeved on the pressing sleeve (32) and is screwed with the pressing sleeve (32), and one end of the stop locking sleeve (33) is attached to the steam inlet device (200).
10. A cut tobacco making machine characterised in that, The application further discloses a center drain pipe structure as claimed in any one of claims 1-9.