A micro-space chimney anti-sway device
By using a micro-space shaking device with cylinder nuts and adjustable bolts between the inside and outside cylinders of the chimney, the problem of difficulty in installing the traditional shaking device is solved, and the effective shaking of the inside and outside cylinders of the chimney is realized, reducing the flue gas flow rate and chimney rain The number of chimney renovation meets the environmental protection and economic needs.
Patent Information
- Application Number
- CN202010440895.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2040-05-22
AI Technical Summary
The traditional horizontal shaking-resisting device cannot be installed when the distance between the inner and outer cylinders of the chimney is small, which affects the anti-corrosion transformation of the chimney and the implementation of reduced flue gas flow rate.
The micro-space chimney shaking device is adopted, including cylinder nuts, adjustable length bolts, stop-and-resistance pressure end plate, stop-and-resistance resistance end plate and stop-and-resistance pressure guide steel plate. The bolts and guide steel plates are tightened and adjusted by the bolts and guide steel plates. Achieve horizontal displacement limitations and replace traditional chute and slide rail structures.
The installation of the shaking device of the inner and outer cylinders of the chimney in a small space to ensure the quality of shaking, is suitable for new and old chimney renovation, reduce the flue gas flow rate and the amount of chimney rain, and achieve environmental protection and economic value.
Smart Images
Figure CN111519973B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a micro-space chimney sway prevention device, belonging to the technical field of chimney design and construction. Background Art
[0002] The sleeve chimney includes an inner smoke exhaust tube (referred to as "inner tube") and an outer tube wall (referred to as "outer tube"). The outer tube is a load-bearing structure that bears wind loads, earthquakes, and the deadweight and horizontal displacement of the inner tube, while the inner tube is used to discharge corrosive flue gas. The sleeve chimney realizes two different types of loads or effects: directly bearing external loads such as wind and directly bearing the effects of flue gas. Different structures bear different types of loads or effects, respectively, and obtain functional division of labor, which is beneficial to the safety of the outer tube structure and the inspection and maintenance of the inner tube. However, the inner tube of this type of chimney has low rigidity and large deformation, so it is necessary to set up multiple layers of horizontal anti-sway devices along the height to constrain the horizontal displacement of the inner tube to ensure its normal operation.
[0003] The horizontal anti-sway device has a horizontal supporting effect on the inner tube, and at the same time needs to ensure the vertical free deformation of the inner tube. That is, the horizontal anti-sway device is a set of controlled displacement devices that ensure limited displacement and vertical free displacement between the inner and outer tubes. It is an indispensable controlled displacement device for sleeve-type chimneys or multi-tube chimneys.
[0004] The traditional horizontal anti-sway device mainly includes a horizontal limit slide groove (referred to as "slide groove") and a vertical slide rail (referred to as "slide rail"). The principle is that the vertical slide rail fixed on the inner tube can move freely vertically along the slide groove fixed on each platform, but is constrained by the platform in the horizontal direction and cannot swing at will. It maintains relative consistency with the deformation of each platform and plays an "anti-sway" role.
[0005] The premise for realizing this anti-sway function is that there needs to be one or more platforms on the inner side of the chimney outer tube, and the platform has enough installation and operation space to install this anti-sway device. However, for the renovation of old chimneys, such as ordinary single-pass reinforced concrete chimneys, during the wet desulfurization renovation, in order to increase the diameter of the newly added inner tube, reduce the flue gas flow rate, reduce the emission of "chimney rain" or reduce the flue gas resistance, the diameter of the newly added inner tube is required to be as close to the inner diameter of the outer tube as possible. This will result in a smaller net distance between the inner and outer tubes at the top of the chimney, limited installation space, and no space for fixing and installing the slide groove and the slide rail, making it impossible to implement the traditional anti-sway device, thereby affecting the implementation of the anti-corrosion renovation of this type of single-tube chimney. Summary of the invention
[0006] The purpose of the present invention is to solve the technical problem that the traditional anti-sway device cannot be installed due to the small clear distance between the inner and outer cylinders and the limited installation space.
[0007] In order to achieve the purpose of solving the above-mentioned problems, the technical solution adopted by the present invention is to provide a micro-space chimney anti-sway device, and a micro-space chimney anti-sway device is arranged between the exhaust inner tube and the outer tube wall of the sleeve-type chimney; the micro-space chimney anti-sway device comprises a barrel nut, a bolt, a sway-stopping pressure-bearing end plate, a sway-stopping resistance-reducing end plate and a sway-stopping pressure-bearing guide steel plate; the barrel nut is provided with a bolt with adjustable length; an anti-swaying pressure-bearing end plate is arranged on one end of the bolt, and one end of the bolt is connected to the sway-stopping resistance-reducing end plate through the sway-stopping pressure-bearing end plate; a sway-stopping pressure-bearing guide steel plate is arranged corresponding to the sway-stopping resistance-reducing end plate, and the sway-stopping resistance-reducing end plate is tightly attached to the corresponding sway-stopping pressure-bearing guide steel plate through the length adjustment of the bolt.
[0008] Preferably, the anti-sway and drag-reducing end plate is made of polytetrafluoroethylene material.
[0009] Preferably, the smoke exhaust inner cylinder of the sleeve-type chimney is provided with an inner cylinder stiffening ring surrounding the outer circumference of the inner cylinder wall, and the inner cylinder stiffening ring is provided with the barrel nut; the barrel nut is provided with a bolt with adjustable length; an anti-sway pressure-bearing end plate is provided on the end of the bolt close to the outer cylinder, and one end of the bolt is connected to the anti-sway pressure-bearing end plate through the anti-sway pressure-bearing end plate; an anti-sway pressure-bearing guide steel plate is provided on the inner wall of the outer cylinder of the sleeve-type chimney, which is parallel to the anti-sway pressure-bearing end plate provided on the inner cylinder stiffening ring; the anti-sway pressure-reduction end plate is tightly attached to the corresponding anti-sway pressure-bearing guide steel plate through the length adjustment of the bolt.
[0010] Preferably, the barrel nut is provided with an internal thread; one end of the barrel nut is arranged inside the inner barrel stiffening ring, and the other end is arranged on the outer surface of the inner barrel stiffening ring.
[0011] Preferably, an inner cylinder stiffening ring reinforcement plate is provided between the smoke exhaust inner cylinder and the inner cylinder stiffening ring of the sleeve-type chimney.
[0012] Preferably, a platform steel beam is provided between the smoke exhaust inner tube and the outer tube wall of the sleeve-type chimney, the barrel nut is connected to the platform steel beam through a connecting steel plate, and a bolt with adjustable length is provided in the barrel nut; a sway-stopping pressure-bearing end plate and a sway-stopping resistance-reducing end plate are provided on the end of the bolt close to the smoke exhaust inner tube, and the sway-stopping resistance-reducing end plate is tightly attached to the sway-stopping pressure-bearing guide steel plate provided on the corresponding smoke exhaust inner tube through the length adjustment of the bolt.
[0013] Preferably, the platform steel beam is configured as a channel steel, and a connecting steel plate is provided at the opening of the channel steel.
[0014] Preferably, an embedded part is provided on the inner wall of the smoke exhaust outer cylinder of the sleeve-type chimney, and a barrel nut is provided on the embedded part; a bolt with adjustable length is provided in the barrel nut; a sway-stopping and pressure-bearing end plate is provided on the end of the bolt close to the smoke exhaust inner cylinder, and the end of the bolt close to the smoke exhaust inner cylinder is connected with the sway-stopping and pressure-bearing end plate through the sway-stopping and resistance-reducing end plate; the smoke exhaust inner cylinder of the sleeve-type chimney is provided with an inner cylinder stiffening ring surrounding the outer circumference of the inner cylinder wall; a sway-stopping and pressure-bearing guide steel plate is provided on the inner cylinder stiffening ring corresponding to the sway-stopping and resistance-reducing end plate; the sway-stopping and resistance-reducing end plate is tightly attached to the sway-stopping and pressure-bearing guide steel plate provided on the corresponding inner cylinder stiffening ring through the length adjustment of the bolt.
[0015] Preferably, a stiffening rib for increasing rigidity is provided between the barrel nut and the embedded part.
[0016] The micro-space chimney sway prevention device provided by the present invention is used in newly built chimneys, reconstruction of old chimneys, and places where the space between the inner and outer tubes of the chimney is large but the distance error is difficult to control.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] In order to overcome the defect that the existing anti-sway device is difficult to fix and install when the distance between the inner and outer tubes of the chimney is small, the present invention provides a micro-space chimney anti-sway device, which realizes the implementation and smooth installation in the tiny space between the inner and outer tubes of the chimney, and ensures the anti-sway quality. The present invention adopts a "bolt-type pressure rod" to replace the traditional "slide rail" structure, and adopts a "anti-sway pressure guide steel plate" to replace the traditional "slide groove" structure. The "bolt-type pressure rod" limits the horizontal displacement of the inner tube by tightening with the "anti-sway pressure guide steel plate" in the horizontal direction, and the "bolt-type pressure rod" and the "anti-sway pressure guide steel plate" can move relatively "freely" in the vertical direction, thereby realizing the anti-sway function; because the length of the "bolt-type pressure rod" can be adjusted by rotating the bolt, and the required space is small, it meets the implementation and installation of the tiny space, and achieves the micro-space anti-sway function. The present invention realizes the micro-space anti-sway between the inner and outer tubes of the chimney, meets the need to set a larger diameter exhaust inner tube when there is a small space between the inner and outer tubes of the chimney, effectively reduces the flue gas flow rate and the amount of "chimney rain", and realizes the environmental protection value and economic value of chimney transformation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a plan layout diagram of the first embodiment (basic type) of the present invention.
[0020] Figure 2 It is an AA cross-sectional view and component view of the first embodiment of the present invention.
[0021] Figure 3 It is a plan view and BB cross-sectional view of the second embodiment (expanded type) of the present invention.
[0022] Figure 4 It is a vertical view and CC, DD cross-sectional view of the third embodiment (expanded type) of the present invention.
[0023] Figure numerals: 1. Cylinder nut 2. Bolt 3a. Anti-sway pressure-bearing end plate 3b. Polytetrafluoroethylene anti-sway resistance-reducing end plate 4. Inner tube stiffening ring 5. Stiffening ring reinforcement plate 6. Smoke exhaust inner tube 7. Anti-sway pressure-bearing guide steel plate 8. Outer tube wall 9. Connecting steel plate 10. Platform steel beam 11. Stiffening rib 12. Embedded parts. DETAILED DESCRIPTION
[0024] In order to make the present invention more clearly understood, a preferred embodiment is described in detail with reference to the accompanying drawings as follows:
[0025] like Figure 1-4As shown, the present invention provides a micro-space chimney anti-sway device, wherein a micro-space chimney anti-sway device is arranged between the exhaust inner tube 6 and the outer tube wall 8 of the sleeve-type chimney; the device comprises a barrel nut 1, a bolt 2, an anti-sway pressure-bearing end plate 3a and an anti-sway resistance-reducing end plate 3b; a bolt 2 with adjustable length is arranged in the barrel nut 1; an anti-sway pressure-bearing end plate 3a is arranged on one end of the bolt 2, and one end of the bolt 2 is connected to the anti-sway resistance-reducing end plate 3b through the anti-sway pressure-bearing end plate 3a; the anti-sway resistance-reducing end plate 3b is made of polytetrafluoroethylene; a ring is arranged on the exhaust inner tube of the sleeve-type chimney An inner cylinder stiffening ring 4 is arranged around the outer circumference of the inner cylinder wall, and a barrel nut 1 is arranged on the inner cylinder stiffening ring 4; a bolt 2 with adjustable length is arranged in the barrel nut 1; a sway-stopping pressure-bearing end plate 3a is arranged on the end of the bolt 2 close to the outer cylinder, and one end of the bolt is connected to the sway-stopping pressure-bearing end plate 3b through the sway-stopping pressure-bearing end plate 3a; a sway-stopping pressure-bearing guide steel plate 7 is arranged on the inner wall of the outer cylinder of the sleeve-type chimney, which is parallel to and corresponds to the sway-stopping pressure-bearing end plate 3a arranged on the inner cylinder stiffening ring 4; the sway-stopping resistance-reducing end plate 3b is tightly attached to the corresponding sway-stopping pressure-bearing guide steel plate 7 through the length adjustment of the bolt 2. The barrel nut 1 is provided with an internal thread; one end of the barrel nut 1 is arranged inside the inner cylinder stiffening ring 4, and the other end is arranged on the outer surface of the inner cylinder stiffening ring 4. An inner cylinder stiffening ring reinforcement plate 5 is arranged between the exhaust inner cylinder 6 of the sleeve-type chimney and the inner cylinder stiffening ring 4. A platform steel beam 10 is provided between the exhaust inner tube 6 and the outer tube wall 8 of the sleeve chimney, and the barrel nut 1 is connected to the platform steel beam 10 through a connecting steel plate 9. The barrel nut 1 is provided with a bolt 2 of adjustable length; the end of the bolt 2 close to the exhaust inner tube is provided with a sway-stopping pressure-bearing end plate 3a and a sway-stopping resistance-reducing end plate 3b, and the sway-stopping resistance-reducing end plate 3b is tightly attached to the corresponding exhaust inner tube 6 by adjusting the length of the bolt 2. The platform steel beam 10 is set as a channel steel, and a connecting steel plate 9 is provided at the opening of the channel steel. An embedded part 12 is provided on the inner wall of the exhaust outer cylinder of the sleeve chimney, and a barrel nut 1 is provided on the embedded part 12; a bolt 2 with adjustable length is provided in the barrel nut 1; a sway-stopping pressure-bearing end plate 3a is provided on the end of the bolt 2 close to the exhaust inner cylinder 6, and the end of the bolt 2 close to the exhaust inner cylinder 6 is connected to the sway-stopping and resistance-reducing end plate 3b through the sway-stopping and pressure-bearing end plate 3a; an inner cylinder stiffening ring 4 surrounding the outer circumference of the inner cylinder wall is provided on the exhaust inner cylinder 6 of the sleeve chimney; a sway-stopping and pressure-bearing guide steel plate 7 is provided on the inner cylinder stiffening ring 4 corresponding to the sway-stopping and resistance-reducing end plate 3b. A stiffening rib 11 for increasing rigidity is provided between the barrel nut 1 and the embedded part 12.
[0026] The micro-space chimney sway prevention device of the present invention is used in newly built chimneys, reconstruction of old chimneys, and places where the space between the inner and outer tubes of the chimney is large but the distance error is difficult to control.
[0027] Example 1
[0028] Figure 1 This is the basic type of the present invention. Figure 2In the embodiment, the bolt 2, the anti-sway pressure-bearing end plate 3a, and the polytetrafluoroethylene anti-sway resistance-reducing end plate 3b together constitute a "bolt-type pressure rod", which has the "slide rail" function of a traditional anti-sway device, wherein the bolt 2 is welded to the anti-sway pressure-bearing end plate 3a, and the polytetrafluoroethylene anti-sway resistance-reducing end plate 3b is fixed on the anti-sway pressure-bearing end plate 3a, which has high compressive strength, smooth surface, and small friction coefficient, and can reduce vertical sliding resistance. The anti-sway pressure-bearing guide steel plate 7 is fixed on the outer cylinder wall 8, and is vertically parallel to the anti-sway pressure-bearing end plate 3a, and is used to transmit the horizontal force of the "bolt-type pressure rod" to the outer cylinder wall 8. At the same time, the polytetrafluoroethylene anti-sway resistance-reducing end plate 3b on the "bolt-type pressure rod" slides vertically "freely" along its surface, thereby realizing the anti-sway function.
[0029] The barrel nut 1 is fixed on the inner barrel stiffening ring 4 and is made of a steel pipe with an internal thread. One end of the barrel nut penetrates into the inner barrel stiffening ring 4 and the other end is exposed from the inner barrel stiffening ring 4, which increases the length and adjustment range of the bolt 2 and is conducive to the application in narrow spaces.
[0030] The "bolt-type pressure rod" is pre-tightened into the barrel nut 1 by means of the bolt 2. After the smoke exhaust inner tube 6 is hoisted to the designed position, the bolt 2 is rotated to make the polytetrafluoroethylene anti-sway and resistance-reducing end plate 3b fit tightly against the anti-sway and pressure-bearing guide steel plate 7 of the outer tube wall 8 to complete the installation of the anti-sway device.
[0031] Additional notes: The stiffening ring reinforcement plate 5 can be set according to the situation and is generally used for the glass fiber reinforced plastic smoke exhaust inner tube 6. The steel inner tube may not be set separately; the polytetrafluoroethylene anti-sway and resistance-reducing end plate 3b is not the only material selected in specific applications and can be replaced by other materials with similar performance.
[0032] Example 2
[0033] Figure 3 It is an extended application of the present invention. It is used for chimneys with steel platform beams or steel tower chimneys. The connecting steel plate 9 is welded to the platform steel beam 10, and the barrel nut 1 is fixed together with the platform steel beam 10. The bolt 2 can penetrate into the platform steel beam 10 as far as possible through the barrel nut 1 until it is close to the surface of the platform steel beam 10, which minimizes the distance requirement between the platform steel beam 10 and the inner barrel and reduces the platform size limit.
[0034] After the inner tube is installed, the bolt 2 is rotated to the surface of the inner tube stiffening ring 4 and pressed against it to complete the installation of the anti-sway device.
[0035] Additional remarks: In the embodiment of the present invention, the platform steel beam 10 is in the form of a channel steel, and the barrel nut 1 is fixed on the web of the channel steel, but the actual application is not limited thereto, and other forms of platform beams may be used, and may be fixed at other positions of the beam.
[0036] Example 3
[0037] Figure 4It is another extended application of the present invention. It is mainly suitable for situations where the space between the inner and outer tubes of the chimney is large, but it is not suitable, does not meet the requirements, or there is no need to set up an anti-sway platform, and it is particularly suitable for use in old chimney renovation projects. Due to high-altitude construction, the construction errors of the wall thickness, radius, roundness, etc. of the chimney outer tube wall 8 are generally large, and there is a large error between the actual size of the chimney cross section and the design drawings, which can easily cause the size of the anti-sway rod to fail to meet the actual installation needs. The present invention can adjust the dimensional error by increasing the length of the bolt, greatly improving the application range of this type of anti-sway device.
[0038] exist Figure 4 In the embodiment, the barrel nut 1 is fixed to the outer barrel wall 8 by the embedded part 12 on the outer barrel wall 8. When the barrel nut 1 is long, a stiffening rib 11 can be added to increase the overall stiffness of the "bolt-type pressure rod". The stiffening rib 11 can be provided only at the lower part of the barrel nut 1. When the barrel nut 1 is long, multiple stiffening ribs 11 can be provided around the circumference.
[0039] After the smoke exhaust inner tube 6 is installed, the bolt 2 is rotated to the surface of the inner tube stiffening ring 4 to make the polytetrafluoroethylene anti-sway resistance reduction end plate 3b fit tightly against the anti-sway pressure-bearing guide steel plate 7 to complete the installation of the anti-sway device.
[0040] Additional remarks: In the embodiment of the present invention, the inner tube stiffening ring 4 is in the form of a combined steel section, but the actual application is not limited thereto.
[0041] The present invention provides a micro-space chimney anti-sway device, which adjusts the length of the "bolt-type pressure rod" to maintain the shortest extension state of the screw rod during the lifting of the inner tube. After the inner tube is in place, it is rotated and extended to fit tightly against the anti-sway pressure-bearing guide steel plate, thereby reducing space restrictions and achieving the anti-sway effect on the smoke exhaust pipe. The "bolt-type pressure rod" mainly includes bolts, pressure-bearing end plates and resistance-reducing end plates, and the "nut" is a long cylinder type, which plays the role of fixing the screw rod, transmitting horizontal force and adjusting the telescopic length of the screw rod. The "cylinder nut" can be fixed on the inner tube stiffening ring, or on the outer tube wall or platform beam. The anti-sway device can be used for the construction of new chimneys, as well as for the renovation of old chimneys, in micro spaces, and in places where the space is large but the distance error is difficult to control.
[0042] The above is only a preferred embodiment of the present invention, and is not any formal or substantial limitation of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present invention, can make some changes, modifications and equivalent changes made by using the technical content disclosed above, which are equivalent embodiments of the present invention; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A micro-space chimney anti-sway device, characterized in that: A micro-space chimney anti-sway device is provided between the smoke exhaust inner tube and the outer tube wall of the sleeve-type chimney; the micro-space chimney anti-sway device comprises a barrel nut, a bolt, an anti-sway pressure-bearing end plate, an anti-sway resistance-reducing end plate and an anti-sway pressure-bearing guide steel plate; a bolt with adjustable length is provided in the barrel nut; an anti-sway pressure-bearing end plate is provided on one end of the bolt, and one end of the bolt is connected to the anti-sway resistance-reducing end plate via the anti-sway pressure-bearing end plate; an anti-sway pressure-bearing guide steel plate is provided corresponding to the anti-sway resistance-reducing end plate, and the anti-sway resistance-reducing end plate is tightly connected to the corresponding anti-sway pressure-bearing guide steel plate through the length adjustment of the bolt.
2. A micro-space chimney anti-swaying device as claimed in claim 1, characterized in that: The anti-sway and drag-reducing end plate is made of polytetrafluoroethylene material.
3. A micro-space chimney anti-swaying device as claimed in claim 2, characterized in that: The smoke exhaust inner cylinder of the sleeve-type chimney is provided with an inner cylinder stiffening ring surrounding the outer circumference of the inner cylinder wall, and the inner cylinder stiffening ring is provided with the barrel nut; the barrel nut is provided with a bolt with adjustable length; an anti-sway pressure-bearing end plate is provided on the end of the bolt close to the outer cylinder, and one end of the bolt is connected to the anti-sway pressure-bearing end plate through the anti-sway pressure-bearing end plate; an anti-sway pressure-bearing guide steel plate is provided on the inner wall of the outer cylinder of the sleeve-type chimney, which is parallel to the anti-sway pressure-bearing end plate provided on the inner cylinder stiffening ring; the anti-sway pressure-reduction end plate is tightly connected with the corresponding anti-sway pressure-bearing guide steel plate through the length adjustment of the bolt.
4. A micro-space chimney anti-swaying device as claimed in claim 3, characterized in that: The barrel nut is provided with an internal thread; one end of the barrel nut is arranged inside the inner barrel stiffening ring, and the other end is arranged on the outer surface of the inner barrel stiffening ring.
5. The micro-space chimney anti-swaying device according to claim 4, characterized in that: An inner cylinder stiffening ring reinforcement plate is provided between the smoke exhaust inner cylinder and the inner cylinder stiffening ring of the sleeve-type chimney.
6. The micro-space chimney anti-swaying device according to claim 2, characterized in that: A platform steel beam is provided between the smoke exhaust inner tube and the outer tube wall of the sleeve type chimney, the barrel nut is connected to the platform steel beam through a connecting steel plate, and a bolt with adjustable length is provided in the barrel nut; a sway-stopping pressure-bearing end plate and a sway-stopping resistance-reducing end plate are provided on the end of the bolt close to the smoke exhaust inner tube, and the sway-stopping resistance-reducing end plate is tightly connected with the sway-stopping pressure-bearing guide steel plate provided on the corresponding smoke exhaust inner tube through the length adjustment of the bolt.
7. A micro-space chimney anti-swaying device as claimed in claim 6, characterized in that: The platform steel beam is configured as a channel steel, and a connecting steel plate is provided at the opening of the channel steel.
8. The micro-space chimney anti-swaying device according to claim 2, characterized in that: An embedded part is provided on the inner wall of the smoke exhaust outer cylinder of the sleeve-type chimney, and a barrel nut is provided on the embedded part; a bolt with adjustable length is provided in the barrel nut; a sway-stopping and pressure-bearing end plate is provided on the end of the bolt close to the smoke exhaust inner cylinder, and the end of the bolt close to the smoke exhaust inner cylinder is connected with the sway-stopping and pressure-bearing end plate through the sway-stopping and resistance-reducing end plate; an inner cylinder stiffening ring surrounding the outer circumference of the inner cylinder wall is provided on the smoke exhaust inner cylinder of the sleeve-type chimney; a sway-stopping and pressure-bearing guide steel plate is provided on the inner cylinder stiffening ring corresponding to the sway-stopping and resistance-reducing end plate; the sway-stopping and resistance-reducing end plate is tightly connected with the sway-stopping and pressure-bearing guide steel plate provided on the corresponding inner cylinder stiffening ring through the length adjustment of the bolt.
9. A micro-space chimney anti-swaying device as claimed in claim 8, characterized in that: A stiffening rib for increasing rigidity is provided between the barrel nut and the embedded part.
10. Application of a micro-space chimney anti-sway device as claimed in any one of claims 1 to 9 in newly built chimneys, reconstruction of old chimneys, and places where the space between the inner and outer tubes of the chimney is large but the distance error is difficult to control.