Main flue cut-off flashboard device
By designing the combination of partition plates, rotary shafts, articulated shafts and elastic parts on the gate plates, the problem of gate plates being easily deformed at high temperatures is solved, the stability and life of partitions are extended, and the equipment complexity and cost are reduced.
Patent Information
- Application Number
- CN202422462808.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing gate plates are prone to deform under high temperature environments, affecting service life and increasing equipment cost and complexity.
The design of the partition plate, the rotary shaft and the hinged shaft is adopted, combined with the elastic member and the limiting member, and the elastic member applies force to the limiting member, tightens the partition plate, reduces thermal deformation, increases service life, and avoids complex cooling devices.
Effectively reduce thermal deformation of the partition, extend service life, reduce equipment costs, and ensure production stability.
Smart Images
Figure CN223090005U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of flue dampers, and particularly to a main flue cutoff damper device. Background Art
[0002] The damper is located in the flue area of the substrate production. Its main function is to cut off or open the passage between the main flue and the chimney. Since the damper is in a suspended state in the main flue and its stress points are on the main flue walls at the far and near ends, when it is subjected to high-temperature radiation of more than 800 degrees during production, the middle part of the damper is very easy to deform. The deformation of the damper can interfere with the smoke flow state in the main flue, resulting in a greater temperature fluctuation, and further affecting the temperature data of the kiln furnace, which has a great impact on production, affects the product quality. At the same time, the deformation of the damper will directly affect the service life of the damper.
[0003] In this regard, the Chinese utility model patent CN220770174U discloses a liquid-cooled pneumatic damper. The liquid-cooled pneumatic damper includes a damper body. The damper body is provided with a cooling cavity. A liquid-cooling pipe is arranged in the cooling cavity. The water outlet end of the liquid-cooling pipe penetrates through the damper body and extends outwards. A sealing plate is arranged in the cooling cavity. The sealing plate is provided with a through hole. The water inlet end of the liquid-cooling pipe passes through the through hole and extends upwards. In this design, by opening a cooling cavity on the damper body and passing a cooling pipe through it, the damper body is cooled by introducing cooling water, and thus the situation that the damper is deformed due to overheating can be avoided. Although the damper in this design can reduce thermal deformation, the method of opening a cooling cavity in the damper reduces the self-strength of the damper. Therefore, it will also affect the service life of the damper; and the method of opening a cooling cavity on the damper and introducing cooling water increases the cooling water circuit system, making the structure more complex and increasing the equipment cost. Summary of the Utility Model
[0004] One technical problem to be solved by the present disclosure is that the current damper reduces thermal deformation by opening a cooling cavity and introducing cooling water, which reduces the structural strength of the damper, affects the service life of the damper, and the added cooling water circuit system makes the structure more complex and increases the equipment cost.
[0005] To solve the above technical problem, an embodiment of the present disclosure provides a main flue cutoff damper device, including:
[0006] A partition plate. Rotating shafts and hinge shafts are respectively arranged on two corresponding sides of the partition plate. The rotating shafts and the hinge shafts are used for rotatably cooperating with two corresponding side walls of the main flue; and
[0007] A tensioning assembly. The rotating shafts and the hinge shafts both extend out of the side walls of the main flue. The tensioning assembly includes an elastic member and a first limiting member sleeved on the extended section of the hinge shaft;
[0008] Among them, the first limiting member is located at one end of the elastic member away from the main flue, the elastic member applies a force to the first limiting member in a direction away from the main flue, and a second limiting member is provided on the protruding section of the rotating shaft.
[0009] In some embodiments, an outer first thread is provided on the outer periphery of the protruding section of the hinge shaft, the first limiting member includes a first nut sleeved on the outer periphery of the protruding section of the hinge shaft, and a first inner thread matching the first outer thread is provided on the inner wall of the first nut.
[0010] In some embodiments, an outer second thread is provided on the outer periphery of the protruding section of the rotating shaft, the second limiting member includes a second nut sleeved on the outer periphery of the protruding section of the rotating shaft, and a second inner thread matching the second outer thread is provided on the inner wall of the second nut.
[0011] In some embodiments, the elastic member includes a spring sleeved on the protruding section of the hinge shaft, one end of the spring is connected to the first limiting member, and the other end of the spring is used to be connected to the outer wall of the main flue.
[0012] In some embodiments, the end of the spring facing the first limiting member abuts against the first limiting member.
[0013] In some embodiments, the end of the spring facing the main flue is used to abut against the outer wall of the main flue.
[0014] In some embodiments, the spring is made of a high-temperature resistant material.
[0015] In some embodiments, the main flue cutoff damper device further includes a driving member for being arranged on the outer wall of the main flue, and the driving member is used to drive the rotating shaft to rotate.
[0016] In some embodiments, the rotating shaft and the hinge shaft are connected by a main shaft, and the rotating shaft, the hinge shaft and the main shaft are integrally formed.
[0017] In some embodiments, a plurality of strip-shaped openings are provided on one side of the partition plate away from the rotating shaft and the hinge shaft.
[0018] Through the above technical solutions, the main flue cutoff damper device provided by the present disclosure, by the second limiting member abutting against one side wall of the main flue, an elastic member and a first elastic member are provided on the corresponding other side wall of the main flue, by the elastic member applying a force to the first limiting member in a direction away from the main flue, and further applying a force to the hinge shaft in a direction away from the main flue, thereby being able to always tighten the partition plate, reduce the thermal deformation of the partition plate, and will not affect the structural strength of the partition plate, increase the service life of the partition plate. At the same time, there is no need to set up a complex cooling device, reducing the equipment cost. Description of the Drawings
[0019] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 is a schematic structural diagram of the main flue cutoff gate device disclosed in the embodiments of the present disclosure;
[0021] Figure 2 is a schematic structural diagram when the rotating shaft and the hinge shaft in the main flue cutoff gate device of the embodiments of the present disclosure are connected by the main shaft.
[0022] Explanation of reference numerals:
[0023] 1, partition; 11, rotating shaft; 12, hinge shaft; 13, strip-shaped opening; 2, main flue; 3, tensioning assembly; 31, elastic member; 311, spring; 32, first limiting member; 321, first nut; 33, second limiting member; 331, second nut; 4, main shaft. Detailed implementation manners
[0024] The following will further describe in detail the implementation manners of the present disclosure in conjunction with the accompanying drawings and embodiments. The detailed description and drawings of the following embodiments are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but including all technical solutions falling within the scope of the claims.
[0025] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of the components and steps described in these embodiments, the components of the materials, the numerical expressions and values should be construed as merely exemplary, rather than as limitations.
[0026] It should be noted that in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality" is greater than or equal to two; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.
[0027] In addition, the "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are merely used to distinguish different parts. "Vertical" does not mean strictly vertical, but within the allowable error range. "Parallel" does not mean strictly parallel, but within the allowable error range. Terms such as "include" or "comprise" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements.
[0028] It should also be noted that in the description of this disclosure, unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" 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 directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, an intermediate device may or may not exist between the specific device and the first device or the second device.
[0029] All terms used in this disclosure have the same meanings as those understood by those of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as, should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.
[0030] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.
[0031] First, the background of the use of the damper is described. The damper is a plate-like structure used to cut off or change the flow area of the fluid in the main flue 2. The main flue 2 is divided into a cylindrical flue and a rectangular flue. The dampers are divided into dampers that move along a direction perpendicular to the extension direction of the main flue 2, and dampers that are rotatably arranged in the main flue 2. The vertically moving damper serves to cut off or open the main flue 2, and it can be used for both cylindrical flues and rectangular flues. The rotatably arranged damper serves to change the flow area of the fluid in the main flue 2, and it is applicable to rectangular flues. Among them, the rotatably arranged damper is usually not used to cut off the main flue 2, and it always maintains a certain opening degree. In this application, the rotatably arranged damper is improved, and this damper is used for rectangular flues to reduce the thermal deformation of the damper and increase the service life of the damper.
[0032] Combined with Figure 1 and Figure 2As shown, the main flue shut-off damper device provided in the embodiment of the present disclosure includes a partition 1 and a tensioning assembly 3.
[0033] The corresponding two sides of the partition 1 are respectively provided with a rotating shaft 11 and a hinge shaft 12, which are used to rotate with the corresponding two side walls of the main flue 2. The rotating shaft 11 and the hinge shaft 12 are coaxially arranged, and the rotating shaft 11 and the partition 1 are fixedly connected so that the partition 1 can be driven to rotate around the axis of the rotating shaft 11 through the rotating shaft 11, and the hinge shaft 12 and the partition 1 are fixedly connected so that the hinge shaft 12 can be driven to rotate relative to the side wall of the main flue 2 through the partition 1, so that the partition 1 can play the effect of changing the opening of the flow channel of the main flue 2.
[0034] The rotating shaft 11 and the hinge shaft 12 both extend out of the side wall of the main flue 2, and the tensioning assembly 3 includes an elastic member 31 and a first stopper 32 which are sleeved on the extended section of the hinge shaft 12. The first stopper 32 is located at the end of the elastic member 31 which is away from the main flue 2, and the two ends of the elastic member 31 are respectively in contact with the outer wall of the main flue 2 and the inner wall of the first stopper 32, and the elastic member 31 applies a force in a direction away from the main flue 2 to the first stopper 32, thereby causing the first stopper 32 to apply a force in a direction away from the main flue 2 to the hinge shaft 12, thereby applying a force in a direction away from the second stopper 33 to the partition 1 through the hinge shaft 12. The extended section of the rotating shaft 11 is provided with a second limit member 33, and the second limit member 33 can be supported on the outer side of the flue wall of the main flue 2. The second limit member 33 can passively apply a force to the partition 1 in a direction away from the first limit member 32, and then under the action of the elastic member 31, the first limit member 32 and the second limit member 33, the middle position of the partition 1 is tightened to generate tensile stress. This force can avoid deformation of the partition 1 or reduce the degree of deformation of the partition 1, thereby playing a role of tightening and reinforcing, and increasing the service life of the partition 1.
[0035] The main flue 2 cut-off gate device provided by the present disclosure is in contact with the side wall of one side of the main flue 2 through the second stopper 33. The other corresponding side wall of the main flue 2 is provided with an elastic member 31 and a first elastic member 31. The elastic member 31 applies a force in the direction away from the main flue 2 to the first stopper 32, thereby applying a force in the direction away from the main flue 2 to the hinge shaft 12, thereby always tightening the partition 1, reducing the thermal deformation of the partition 1, and will not affect the structural strength of the partition 1, increasing the service life of the partition 1. At the same time, there is no need to set up a complex cooling device, reducing equipment costs. In addition, the partition 1 under this design is not easy to deform, which promotes stable operation of production.
[0036] In some embodiments, in combination Figure 1 and Figure 2As shown, a first external thread is provided on the outer periphery of the protruding section of the hinge shaft 12. The first limiting member 32 includes a first nut 321 sleeved on the outer periphery of the protruding section of the hinge shaft 12, and a first internal thread matching the first external thread is provided on the inner wall of the first nut 321.
[0037] In this design, the first nut 321 and the protruding section of the hinge shaft 12 are connected by a threaded connection, which is convenient for adjusting the distance between the first limiting member 32 and the side wall of the main flue 2. Furthermore, the compression degree of the elastic member 31 can be adjusted, ensuring that the elastic member 31 can exert sufficient force on the hinge shaft 12 and the partition 1, ensuring the stretching effect of the partition 1, effectively preventing the partition 1 from deforming, and prolonging the service life of the partition 1.
[0038] In some embodiments, a second external thread is provided on the outer periphery of the protruding section of the rotating shaft 11. The second limiting member 33 includes a second nut 331 sleeved on the outer periphery of the protruding section of the rotating shaft 11, and a second internal thread matching the second external thread is provided on the inner wall of the second nut 331.
[0039] In this design, the second nut 331 and the protruding section of the rotating shaft 11 are connected by a threaded connection, which is convenient for adjusting the distance between the second limiting member 33 and the side wall of the main flue 2. Furthermore, it can cooperate with the first nut 321 to adjust the compression degree of the elastic member 31, ensuring that the elastic member 31 can exert sufficient force on the hinge shaft 12 and the partition 1, ensuring the stretching effect of the partition 1.
[0040] In some embodiments, the partition 1 adopts a rectangular structure, and there is a certain distance between both ends of the partition 1 and the corresponding two inner walls of the main flue 2. Moreover, the length of the hinge shaft 12 is greater than the length of the rotating shaft 11, so that the partition 1 can be installed on the main flue 2 through the rotating shaft 11 and the hinge shaft 12. In addition, both the first nut 321 and the second nut 331 adopt a detachable connection method, which is convenient for disassembling and assembling the partition 1, increasing the convenience of disassembly and assembly.
[0041] In some embodiments, the elastic member 31 includes a spring 311 sleeved on the protruding section of the hinge shaft 12. One end of the spring 311 is connected to the first limiting member 32, and the other end of the spring 311 is used to connect to the outer wall of the main flue 2.
[0042] In this design, by setting the spring 311, sufficient elastic force can be provided to the first limiting member 32. And during daily production operations, regularly measure the length of the stressed spring 311 with a vernier caliper. In this way, according to the change in the length value of the spring 311, the deformation of the partition 1 can be effectively monitored, and then the deformation amount of the partition 1 can be controlled by adjusting the tightness of the first nut 321 and the second nut 331, ensuring the stable operation of production.
[0043] In some embodiments, one end of the spring 311 facing the first limiting member 32 abuts against the first limiting member 32.
[0044] In this design, one end of the spring 311 in contact with the first limiting member 32 can rotate relative to the first limiting member 32. Thus, during the rotation of the hinge shaft 12, the spring 311 can maintain its position unchanged, avoiding affecting the service life of the spring 311.
[0045] In some embodiments, one end of the spring 311 facing the main flue 2 is used to abut against the outer wall of the main flue 2.
[0046] In this design, one end of the spring 311 facing the main flue 2 can rotate relative to the outer wall of the main flue 2. Thus, during the rotation of the hinge shaft 12, the spring 311 can maintain its position unchanged, avoiding affecting the service life of the spring 311.
[0047] In some embodiments, both ends of the spring 311 adopt arc transitions to reduce the frictional force between both ends of the spring 311 and the outer wall of the first limiting member 32 and the main flue 2, ensuring that the spring 311 can rotate relative to the first limiting member 32 and the main flue 2.
[0048] In some embodiments, the spring 311 is made of a high-temperature resistant material. Among them, the spring 311 is usually made of high-temperature alloy materials such as CrV (a kind of steel), CrSi (a kind of steel), Inconei (a nickel-chromium-iron alloy material), etc. The application temperature reaches 700°C - 1000°C, and it has high tensile strength. Its tensile strength, yield point, and plastic deformation ability in hot and cold processing should meet the standards, so that the deformation amount of its material will not be greatly affected by thermal expansion and contraction and pressure, avoiding affecting the use accuracy due to the material factors of the spring 311 itself.
[0049] In some embodiments, the main flue 2 cutoff gate device further includes a driving member for being arranged on the outer wall of the main flue 2, and the driving member is used to drive the rotating shaft 11 to rotate. Among them, the driving member is arranged on the outer wall of the main flue 2 through a bracket, or arranged on other components on the outer wall of the main flue 2, which can be selected according to actual needs.
[0050] In this design, the driving member can drive the rotating shaft 11 to rotate, and then drive the partition plate 1 and the hinge shaft 12 to rotate, so as to change the angle of the partition plate 1 in the main flue 2, and then change the opening degree of the main flue 2, adjust the flue gas flow, and meet the use requirements of the partition plate 1.
[0051] In some embodiments, the driving member includes a high-temperature resistant motor arranged on the outer wall of the main flue 2, or includes a high-temperature resistant motor and a speed reducer arranged on the outer wall of the main flue 2. It can be designed according to actual needs.
[0052] In some embodiments, as Figure 2 shown, the rotating shaft 11 and the hinge shaft 12 are connected by the main shaft 4, and the rotating shaft 11, the hinge shaft 12 and the main shaft 4 are integrally formed.
[0053] In this design, the rotating shaft 11, the hinge shaft 12 and the main shaft 4 are integrally formed, which can improve the manufacturing convenience and increase the connection area between the rotating shaft 11, the hinge shaft 12 and the partition 1, thereby increasing the connection strength.
[0054] In some embodiments, a plurality of strip-shaped openings 13 are provided on the side of the partition 1 away from the rotating shaft 11 and the hinge shaft 12. Among them, the plurality of strip-shaped openings 13 are arranged at intervals along the length direction of the partition 1.
[0055] In this design, by providing a plurality of strip-shaped openings 13 on the partition 1, it can make way for the deformation of the partition 1 and further avoid the phenomenon of the partition 1 being bent.
[0056] So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details well known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0057] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.
Claims
1. A main flue cut-off damper device, characterized in that include: A partition (1), wherein corresponding two sides of the partition (1) are respectively provided with a rotating shaft (11) and a hinge shaft (12), and the rotating shaft (11) and the hinge shaft (12) are used to rotate with two corresponding side walls of the main flue (2); and A tensioning assembly (3), wherein the rotating shaft (11) and the hinge shaft (12) both extend out of the side wall of the main flue (2), and the tensioning assembly (3) comprises an elastic member (31) and a first stopper (32) sleeved on the extended section of the hinge shaft (12); The first limiting member (32) is located at an end of the elastic member (31) away from the main flue (2), the elastic member (31) applies a force to the first limiting member (32) in a direction away from the main flue (2), and the extending section of the rotating shaft (11) is provided with a second limiting member (33).
2. The total flue cutoff gate device according to claim 1, characterized in that, The outer periphery of the extended section of the hinge shaft (12) is provided with a first external thread, the first limiting member (32) comprises a first nut (321) sleeved on the outer periphery of the extended section of the hinge shaft (12), and the inner wall of the first nut (321) is provided with a first internal thread matching the first external thread.
3. The total flue cutoff gate device according to claim 1, characterized in that, The outer circumference of the extended section of the rotating shaft (11) is provided with a second external thread, the second limiting member (33) comprises a second nut (331) sleeved on the outer circumference of the extended section of the rotating shaft (11), and the inner wall of the second nut (331) is provided with a second internal thread matching the second external thread.
4. The total flue cutoff gate device according to claim 1, characterized in that The elastic member (31) comprises a spring (311) sleeved on the extended section of the hinge shaft (12), one end of the spring (311) being connected to the first limiting member (32), and the other end of the spring (311) being used to be connected to the outer wall of the main flue (2).
5. The total flue cutoff gate device according to claim 4, characterized in that, One end of the spring (311) facing the first limiting member (32) abuts against the first limiting member (32).
6. The total flue cutoff gate device according to claim 4, wherein The end of the spring (311) facing the main flue (2) is used for abutting against the outer wall of the main flue (2).
7. The total flue cutoff damper device according to claim 4, characterized in that, The spring (311) is made of high temperature resistant material.
8. The total flue cutoff damper device according to claim 1, characterized in that, The main flue shutoff damper device also includes a driving member arranged on the outer wall of the main flue (2), and the driving member is used to drive the rotating shaft (11) to rotate.
9. The total flue cutoff damper device according to any one of claims 1 to 8, characterized in that The rotating shaft (11) and the hinge shaft (12) are connected via a main shaft (4); the rotating shaft (11), the hinge shaft (12) and the main shaft (4) are integrally formed.
10. The total flue cutoff damper device according to any one of claims 1 to 8, characterized in that, A plurality of strip-shaped openings (13) are provided on one side of the partition plate (1) away from the rotating shaft (11) and the hinge shaft (12).
Citation Information
Patent Citations
Liquid-cooled pneumatic flashboard
CN220770174U