CN115031249A - Flexible connection section of high-temperature flue gas exhaust system - Google Patents

Flexible connection section of high-temperature flue gas exhaust system Download PDF

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Publication number
CN115031249A
CN115031249A CN202210878414.9A CN202210878414A CN115031249A CN 115031249 A CN115031249 A CN 115031249A CN 202210878414 A CN202210878414 A CN 202210878414A CN 115031249 A CN115031249 A CN 115031249A
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CN
China
Prior art keywords
pipe
flexible
section
connecting section
flexible connecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210878414.9A
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Chinese (zh)
Inventor
盛亮
水鹏程
马静
刘建阳
季玲玲
谢月
於飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerosun Tola Expansion Joint Co ltd
Original Assignee
Aerosun Tola Expansion Joint Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aerosun Tola Expansion Joint Co ltd filed Critical Aerosun Tola Expansion Joint Co ltd
Priority to CN202210878414.9A priority Critical patent/CN115031249A/en
Publication of CN115031249A publication Critical patent/CN115031249A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00Fittings for chimneys or flues 
    • F23J13/04Joints; Connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The invention provides a flexible connecting section of a high-temperature flue gas exhaust system, which is characterized in that a first corrugated pipe of the flexible connecting section and a second corrugated pipe of the flexible connecting section are arranged to absorb displacement generated by a heat exchanger and an exhaust system; the flexible connecting section supporting spring assembly and the flexible connecting section support assembly II are arranged to bear the gravity of the flexible connecting section, so that the stress at the pipe orifice of the lower square pipe-to-round pipe is lowest; the first flexible connecting section support assembly and the second flexible connecting section support assembly are arranged to bear the limiting effect of earthquake displacement, the flexible connecting sections are prevented from being damaged due to earthquake displacement, and the heat insulation structure adopts a nano and ceramic fiber composite heat insulation structure, so that the weight of a heat insulation layer is reduced; the square-to-round part is provided with a manhole, so that the installation and the maintenance are convenient; the inner lining barrel is arranged on the inner side of the corrugated pipe, so that the friction of a medium is reduced, the flow is stable, and the possibility of resonance of the corrugated pipe is reduced; an outer jacket is provided on the outside to protect the bellows from external impacts.

Description

Flexible connection section of high-temperature flue gas exhaust system
Technical Field
The invention relates to the technical field of flexible connection, in particular to a flexible connection section of a high-temperature flue gas exhaust system.
Background
The smoke exhaust system is arranged in an air heat exchanger process chamber of a factory building, belongs to an accessory of an air heat exchanger, and is used for guiding hot air exhausted by the heat exchanger to an accident waste heat exhaust system air exhaust chimney, the design temperature of the high-temperature smoke exhaust system reaches up to 550 ℃, the heat exchanger and the exhaust system can generate great thermal displacement and earthquake displacement, the stress of an opening part of the heat exchanger and the surface temperature of equipment have strict requirements, and the displacement needs to be compensated by comprehensively considering the professional problems of an expansion joint body, a supporting structure, a civil engineering embedded part, a heat insulation structure and the like.
Disclosure of Invention
The invention aims to provide a flexible connecting section of a high-temperature flue gas exhaust system, which aims to solve the problems that a single metal corrugated pipe expansion joint cannot meet the requirements of a heat exchanger and the exhaust system on generating large thermal displacement and earthquake displacement, and equipment generates thermal stress due to high-temperature expansion in a traditional welding structure.
The invention provides a flexible connecting section of a high-temperature flue gas exhaust system, which comprises: the flexible connecting section comprises a first flexible connecting section corrugated pipe, a second flexible connecting section corrugated pipe, a first flexible connecting section connecting pipe, a second flexible connecting section connecting pipe, a third flexible connecting section connecting pipe, a square pipe-to-round pipe assembly, a taper pipe assembly and a square pipe;
the square pipe is arranged at the bottommost end, the upper end of the square pipe is connected with the square pipe component, the upper end of the square pipe component is connected with the flexible connecting section connecting pipe No. three, the upper end of the flexible connecting section connecting pipe No. three is connected with the flexible connecting section corrugated pipe No. two, the upper end of the flexible connecting section corrugated pipe No. two is connected with the flexible connecting section connecting pipe No. two, the upper end of the flexible connecting section connecting pipe No. two is connected with the flexible connecting section corrugated pipe No. one, the upper end of the flexible connecting section connecting pipe No. one is connected with the taper pipe component, the square pipe is connected with the square pipe component, the flexible connecting section connecting pipe No. three, the flexible connecting section corrugated pipe No. two, the flexible connecting section connecting pipe No. two, the flexible connecting section corrugated pipe No. one, The flexible connecting section is connected with the first pipe, and the cylinder body formed by connecting the taper pipe assemblies penetrates through the floor slab to reach the chimney, namely the top ends of the taper pipe assemblies are connected with the chimney.
Furthermore, a first corrugated pipe lining barrel is arranged on the inner side of the first flexible connecting section corrugated pipe, a first corrugated pipe outer sheath is arranged on the outer side of the first corrugated pipe lining barrel, one end of the first corrugated pipe lining barrel is connected to the inner wall of the second flexible connecting section connecting pipe, the other end of the first corrugated pipe lining barrel is not connected, a plurality of groups of lug plates are arranged at the positions, corresponding to the outer wall of the top end of the second flexible connecting section connecting pipe, of the bottom end of the first flexible connecting section connecting pipe and the outer wall of the top end of the second flexible connecting section connecting pipe, the first corrugated pipe outer sheath is connected with the lug plates at the corresponding positions, the first flexible connecting section connecting pipe and the two corresponding lug plates on the second flexible connecting section connecting pipe are connected through pull rods, a second corrugated pipe lining barrel is arranged on the inner side of the second flexible connecting section corrugated pipe, a second corrugated pipe outer sheath is arranged on the outer side of the bottom end of the second flexible connecting pipe and the outer wall of the top end of the third flexible connecting section connecting pipe are provided with a plurality of lug plates, bellows oversheath No. two with correspond the position the otic placode is connected, flexible connection section connecting pipe No. two with two that correspond each other on the flexible connection section connecting pipe No. three the otic placode passes through the pull rod is connected, and civil engineering built-in fitting is pre-buried in the floor, and flexible connection section support ring subassembly No. one is fixed through many groups of fixed blocks the outer wall of flexible connection section connecting pipe No. three, flexible connection section supporting spring subassembly's one end is connected on the civil engineering built-in fitting, the other end is connected flexible connection section support ring subassembly No. one, the one end of flexible connection section support ring subassembly No. one is connected on the civil engineering built-in fitting, the other end is connected flexible connection section support ring subassembly No. one, flexible connection section supporting spring subassembly is in the inboard of flexible connection section support ring subassembly No. one, the left and right sides of flexible connection section support ring subassembly No. one all is connected with flexible connection section support ring subassembly No. one The flexible connection section supporting spring assembly is characterized in that a flexible connection section supporting ring assembly is fixed on the outer wall of the flexible connection section connecting pipe I through a plurality of groups of fixing blocks, one end of a flexible connection section supporting ring assembly is connected to the soil building embedded part, the other end of the flexible connection section supporting ring assembly is connected to the flexible connection section supporting ring assembly II, and the two ends of the flexible connection section supporting ring assembly II are connected with the flexible connection section supporting ring assembly II.
Furthermore, a heat exchanger is arranged at the bottom end of the square pipe.
Furthermore, a manhole and a temperature measuring hole are arranged on the side face of the square tube-to-round tube component.
Further, the square pipe become the pipe subassembly, the flexible connection section connecting pipe is No. three, the flexible connection section bellows is No. two, the flexible connection section connecting pipe is No. two, the flexible connection section bellows is No. one, the flexible connection section connecting pipe is No. one, the outside of taper pipe subassembly all sets up the insulating layer, the insulating layer is nanometer thermal insulation material and ceramic fiber's compound thermal-insulated structure.
Furthermore, the first flexible connecting section support ring assembly and the second flexible connecting section support ring assembly are of floating force bearing structures, and the flexible connecting section support spring assembly is a constant force spring.
The invention has the following beneficial effects: the invention provides a flexible connecting section of a high-temperature flue gas exhaust system, which is characterized in that a first corrugated pipe of the flexible connecting section and a second corrugated pipe of the flexible connecting section are arranged to absorb displacement generated by a heat exchanger and the exhaust system; the flexible connecting section supporting spring assembly and the flexible connecting section support assembly II are arranged to bear the gravity of the flexible connecting section, so that the stress at the pipe orifice of the lower square pipe-to-round pipe is lowest; the first flexible connecting section support assembly and the second flexible connecting section support assembly are arranged to bear the limiting effect of earthquake displacement, the flexible connecting sections are prevented from being damaged due to earthquake displacement, and the heat insulation structure adopts a nano and ceramic fiber composite heat insulation structure, so that the weight of a heat insulation layer is reduced; a manhole is arranged at the square-to-round position, so that the installation and the maintenance are convenient; the inner side of the corrugated pipe is provided with the lining barrel, so that the friction of a medium is reduced, the flow is stable, and the possibility of resonance of the corrugated pipe is reduced; an outer jacket is provided on the outside to protect the corrugated tube from external impact.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a sectional view of a flexible connection section of a high temperature flue gas exhaust system according to the present invention;
FIG. 2 is a schematic view of a cross-sectional view of a flexible connection section of a high temperature flue gas exhaust system provided by the present invention, rotated at 45 degrees;
fig. 3 is a schematic view of a heat insulation structure of a flexible connection section of a high-temperature flue gas exhaust system provided by the invention.
Illustration of the drawings: 1-flexible connecting section first corrugated pipe, 2-flexible connecting section second corrugated pipe, 3-flexible connecting section first connecting pipe, 4-flexible connecting section second connecting pipe, 5-flexible connecting section third connecting pipe, 6-corrugated pipe lining barrel, 7-corrugated pipe outer sheath, 8-civil construction embedded part, 9-flexible connecting section support ring component, 10-flexible connecting section support ring component, 11-flexible connecting section support component, 12-flexible connecting section support component, 13-square pipe-changing circular pipe component, 14-conical pipe component, 15-flexible connecting section support spring component, 16-fixed block, 17-heat insulating layer, 18-lug plate, 19-pull rod, 20-chimney, 21-floor slab, 22-manhole, 23-square pipe, 24-temperature measuring hole, 25-heat exchanger, 26-corrugated pipe lining cylinder II, 27-corrugated pipe outer sheath II, 28-nano heat insulating material and 29-ceramic fiber.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure herein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, and in the drawings, the thicknesses of layers and regions are exaggerated for clarity and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Referring to fig. 1 to 3, a flexible connection section of a high temperature flue gas exhaust system according to an embodiment of the present invention includes: the flexible connecting section comprises a first flexible connecting section corrugated pipe 1, a second flexible connecting section corrugated pipe 2, a first flexible connecting section connecting pipe 3, a second flexible connecting section connecting pipe 4, a third flexible connecting section connecting pipe 5, a square pipe-to-round pipe assembly 13, a taper pipe assembly 14 and a square pipe 23;
wherein the square tube 23 is arranged at the bottom end, the bottom end of the square tube 23 is provided with a heat exchanger 25, the heat exchanger is a device for transferring heat from hot fluid to cold fluid so as to meet the specified process requirements, the device is an industrial application of convection heat transfer and heat conduction, the heat exchanger 25 is used for transferring hot gas upwards, the upper end of the square tube 23 is connected with a square tube-to-tube assembly 13, the upper end of the square tube-to-tube assembly 13 is connected with a flexible connecting section connecting tube No. 5, the upper end of the flexible connecting section connecting tube No. 5 is connected with a flexible connecting section corrugated tube No. 2, the upper end of the flexible connecting section corrugated tube No. 2 is connected with a flexible connecting section connecting tube No. 4, the upper end of the flexible connecting section connecting tube No. 4 is connected with a flexible connecting section corrugated tube No. 1, and the upper end of the flexible connecting section corrugated tube No. 1 is connected with a flexible connecting section connecting tube No. 3, the upper end of the first flexible connecting section connecting pipe 3 is connected with the taper pipe assembly 14, the taper pipe assembly 14 is a cylindrical conical barrel with a narrow lower part and a wide upper part, the corrugated pipe is provided with a plurality of cylindrical thin-wall corrugated shells with transverse corrugations, the corrugated pipe is elastic and can generate displacement under the action of pressure, axial force, transverse force or bending moment, and the first corrugated pipe 1 and the second corrugated pipe 2 bear the displacement generated by the absorption heat exchanger 25 and the exhaust system.
Specifically, the square tube 23, the square tube-to-tube assembly 13, the flexible connection section connecting tube No. three 5, the flexible connection section corrugated tube No. 2, the flexible connection section connecting tube No. two 4, the flexible connection section corrugated tube No. 1, the flexible connection section connecting tube No. one 3, and the cone tube assembly 14 are connected to form a cylinder body which passes through the floor 21 and reaches the chimney 20, that is, the top end of the cone tube assembly 14 is connected to the chimney 20, in the using process, smoke passes through the heat exchanger 25 at the bottom end of the square tube 23, passes through the square tube-to-tube assembly 13, the flexible connection section connecting tube No. three 5, the flexible connection section corrugated tube No. two 2, the flexible connection section connecting tube No. two 4, the flexible connection section corrugated tube No. 1, the flexible connection section connecting tube No. one 3, and the cone tube assembly 14, to the upper draft stack 20 and finally to the atmosphere.
Specifically, the inner side of the first flexible connecting section corrugated pipe 1 is provided with a first corrugated pipe lining cylinder 6, the outer side of the first flexible connecting section corrugated pipe 1 is provided with a first corrugated pipe outer sheath 7, one end of the first corrugated pipe lining cylinder 6 is connected to the inner wall of the second flexible connecting section connecting pipe 4, the other end of the first corrugated pipe lining cylinder is not connected, the bottom end of the first flexible connecting section connecting pipe 3 and the corresponding position on the outer wall of the top end of the second flexible connecting section connecting pipe 4 are provided with a plurality of groups of lug plates 18, the first corrugated pipe outer sheath 7 and the lug plates 18 in the corresponding positions are connected, the first flexible connecting section connecting pipe 3 and the two corresponding lug plates 18 on the second flexible connecting section connecting pipe 4 are connected through a pull rod 19, the inner side of the second flexible connecting section corrugated pipe 2 is provided with a second corrugated pipe 26, the outer side of the second corrugated pipe outer sheath 27, the bottom end of the second flexible connecting pipe 4 and the corresponding position on the outer wall of the top end of the third flexible connecting pipe 5 are connected through a pull rod 19 The second corrugated pipe outer sheath 27 is connected with the corresponding lug plate 18, the second flexible connecting section connecting pipe 4 is connected with the third flexible connecting section connecting pipe 5 through the pull rod 19, and the first corrugated pipe lining cylinder 6 and the second corrugated pipe lining cylinder 26 are arranged to reduce medium friction, so that the flow is stable and the possibility of corrugated pipe resonance is reduced.
The design of the first corrugated pipe lining sleeve 6 and the second corrugated pipe lining sleeve 26 can effectively reduce medium friction, enable the medium to flow stably and reduce the possibility of corrugated pipe resonance, and the first corrugated pipe outer sheath 7 and the second corrugated pipe outer sheath 27 can effectively protect the corrugated pipe from being damaged by external impact.
Specifically, civil engineering built-in fitting 8 is pre-buried in floor 21, and flexible connection section support ring subassembly 9 is fixed through multiunit fixed block 16 No. 5's of flexible connection section connecting pipe outer wall, and flexible connection section support spring assembly 15's one end is connected on the civil engineering built-in fitting 8, and the other end is connected flexible connection section support ring subassembly 9 No. 11, flexible connection section support ring subassembly 11's one end is connected on the civil engineering built-in fitting 8, and the other end is connected flexible connection section support ring subassembly 9 No. 9, flexible connection section support spring assembly 15 is in the inboard of flexible connection section support ring subassembly 11, the left and right sides of flexible connection section support ring subassembly 9 all is connected with flexible connection section support ring subassembly 11 No. 11 with flexible connection section support spring assembly 15, flexible connection section support ring subassembly 10 is fixed through multiunit fixed block 16 flexible connection section connecting pipe 3's one 3's of flexible connection section connecting pipe One end of a flexible connecting section support ring component II 12 is connected to the soil building embedded part 8, the other end of the flexible connecting section support ring component II is connected to the flexible connecting section support ring component II 10, the left end and the right end of the flexible connecting section support ring component II 10 are both connected with the flexible connecting section support ring component II 12, the flexible connecting section support ring component I9 and the flexible connecting section support ring component II 10 are floating force bearing structures, and the flexible connecting section support spring component 15 is a constant force spring, so that the stress of a square-to-round pipe opening is reduced while the equipment displacement is met; the first flexible connecting section support ring assembly 9 and the second flexible connecting section support ring assembly 10 are floating bearing structures, and the floating bearing structures replace the traditional welding structures, so that the problem of high-temperature expansion thermal stress of equipment is effectively solved.
Specifically, the side of the square tube-to-tube circular tube assembly 13 is provided with a manhole 22 and a temperature measuring hole 24, the manhole 22 effectively solves the problems of installation and maintenance, and the temperature measuring hole 24 is designed to facilitate real-time monitoring of temperature change inside the flexible connection section during work.
Specifically, square pipe 23 square pipe becomes pipe subassembly 13 flexible connection section connecting pipe No. three 5 flexible connection section bellows No. 2 flexible connection section bellows No. two 4 flexible connection section connecting pipe No. 1 flexible connection section bellows No. 3 flexible connection section connecting pipe No. 3 the outside of taper pipe subassembly 14 all sets up insulating layer 17, insulating layer 17 is the compound thermal-insulated structure of nanometer thermal insulation material 28 and ceramic fiber 29, adopts the compound thermal-insulated structure of nanometer thermal insulation material 28 with ceramic fiber 29 can alleviate insulating layer weight effectively, reduces the load, ensures that equipment surface temperature satisfies the designing requirement when reducing thickness and lightening weight.
The invention provides a flexible connecting section of a high-temperature flue gas exhaust system, which has the following use principle: the flue gas through square 23 bottom heat exchanger 25, through square become the pipe subassembly 13, through flexible connection section connecting pipe No. three 5, through flexible connection section bellows No. 2, through flexible connection section connecting pipe No. two 4, through flexible connection section bellows No. 1, through flexible connection section connecting pipe No. 3, through the taper pipe subassembly 14, reach upper portion draft chimney 20, finally discharge into the atmosphere, in this process, bellows No. 1 and bellows No. 2 undertake the displacement that absorbs heat exchanger 23 and exhaust system and produce, flexible connection section supporting spring subassembly 15 and flexible connection section bracket subassembly No. two 12 undertake the gravity of flexible connection section, make the stress of lower part square become pipe subassembly 13 mouth of pipe department reaches minimum, the limiting action of flexible connection section bracket subassembly No. 11 and flexible connection section bracket subassembly No. two 12 earthquake displacement, prevent the flexible connection section because earthquake displacement destroys, flexible connection section bracket assembly No. 11 with flexible connection section bracket assembly No. two 12 with flexible connection section supporting spring subassembly 15 with civil engineering built-in fitting 8 is connected, civil engineering built-in fitting 8 pre-buried in floor 21 concrete, flexible connection section bracket assembly No. 11 with flexible connection section bracket assembly No. two 12 with flexible connection section supporting spring subassembly 15 undertakes the gravity and the earthquake load of flexible connection section jointly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a high temperature flue gas exhaust system flexonics section which characterized in that includes: the flexible connecting section comprises a first flexible connecting section corrugated pipe (1), a second flexible connecting section corrugated pipe (2), a first flexible connecting section connecting pipe (3), a second flexible connecting section connecting pipe (4), a third flexible connecting section connecting pipe (5), a square pipe-to-round pipe assembly (13), a taper pipe assembly (14) and a square pipe (23);
square pipe (23) are arranged in the bottommost end, square pipe (23) upper end connection side pipe becomes pipe subassembly (13), square pipe becomes the upper end of pipe subassembly (13) and connects No. three (5) of flexible connection section connecting pipe, the upper end of No. three (5) of flexible connection section connecting pipe is connected No. two (2) of flexible connection section bellows, the upper end of No. two (2) of flexible connection section bellows is connected No. two (4) of flexible connection section connecting pipe, the upper end of No. two (4) of flexible connection section connecting pipe is connected No. one (1) of flexible connection section bellows, the upper end of No. one (1) of flexible connection section bellows is connected No. one (3) of flexible connection section connecting pipe is connected taper pipe subassembly (14), square pipe (23) square pipe becomes pipe subassembly (13), The utility model discloses a chimney, chimney and chimney connection, flexible connection section connecting pipe is No. three (5), flexible connection section bellows No. two (2), flexible connection section connecting pipe No. two (4), flexible connection section bellows No. one (1), flexible connection section connecting pipe No. one (3), the barrel that taper pipe subassembly (14) connect into passes floor (21) and reachs chimney (20), promptly the top of taper pipe subassembly (14) is connected chimney (20).
2. The flexible connection section of a high-temperature flue gas exhaust system according to claim 1, wherein a first bellows liner (6) is arranged on the inner side of the first flexible connection section bellows (1), a first bellows outer sheath (7) is arranged on the outer side of the first bellows liner, one end of the first bellows liner (6) is connected to the inner wall of the second flexible connection section connection tube (4), the other end of the first bellows liner is not connected, a plurality of sets of lug plates (18) are arranged at corresponding positions on the outer wall of the bottom end of the first flexible connection section connection tube (3) and the outer wall of the top end of the second flexible connection section connection tube (4), the first bellows outer sheath (7) is connected with the lug plates (18) at corresponding positions, the first flexible connection section connection tube (3) and the second flexible connection section connection tube (4) are connected with the two corresponding lug plates (18) through pull rods (19), the inner side of the second flexible connecting section corrugated pipe (2) is provided with a second corrugated pipe lining sleeve (26), the outer side of the second flexible connecting section corrugated pipe (2) is provided with a second corrugated pipe outer sheath (27), the bottom end of the second flexible connecting section connecting pipe (4) and the outer wall of the top end of the third flexible connecting section connecting pipe (5) are provided with a plurality of groups of ear plates (18), the second corrugated pipe outer sheath (27) is connected with the ear plates (18) at corresponding positions, the second flexible connecting section connecting pipe (4) and the third flexible connecting section connecting pipe (5) are connected with the two corresponding ear plates (18) through the pull rod (19), a civil construction embedded part (8) is embedded in a floor slab (21), and the first flexible connecting section support ring component (9) is fixed on the outer wall of the third flexible connecting section connecting pipe (5) through a plurality of fixing blocks (16), one end of a flexible connecting section supporting spring assembly (15) is connected to the civil engineering embedded part (8), the other end of the flexible connecting section supporting spring assembly is connected to the first flexible connecting section supporting ring assembly (9), one end of the first flexible connecting section supporting ring assembly (11) is connected to the civil engineering embedded part (8), the other end of the flexible connecting section supporting ring assembly is connected to the first flexible connecting section supporting ring assembly (9), the flexible connecting section supporting spring assembly (15) is arranged on the inner side of the first flexible connecting section supporting ring assembly (11), the left side and the right side of the first flexible connecting section supporting ring assembly (9) are both connected with the first flexible connecting section supporting ring assembly (11) and the flexible connecting section supporting spring assembly (15), and the second flexible connecting section supporting ring assembly (10) is fixed on the outer wall of the first flexible connecting section connecting pipe (3) through a plurality of fixing blocks (16), one end of the flexible connecting section bracket assembly No. two (12) is connected on the civil engineering embedded part (8), the other end is connected on the flexible connecting section supporting ring assembly No. two (10), the left and right ends of the flexible connecting section supporting ring assembly No. two (10) are connected with the flexible connecting section bracket assembly No. two (12).
3. A high temperature flue gas exhaust system flexible connecting section according to claim 1, characterized in that the bottom end of the square pipe (23) is provided with a heat exchanger (25).
4. The flexible connecting section of a high-temperature flue gas exhaust system according to claim 1, wherein a manhole (22) and a temperature measuring hole (24) are arranged on the side surface of the square tube-to-round tube assembly (13).
5. The flexible connection section of a high-temperature flue gas exhaust system according to claim 1, wherein the square pipe (23), the square pipe-to-pipe assembly (13), the flexible connection section connection pipe No. three (5), the flexible connection section corrugated pipe No. two (2), the flexible connection section connection pipe No. two (4), the flexible connection section corrugated pipe No. one (1), the flexible connection section connection pipe No. one (3), and the outside of the conical pipe assembly (14) are all provided with a thermal insulation layer (17), and the thermal insulation layer (17) is a composite thermal insulation structure of a nanometer thermal insulation material (28) and ceramic fibers (29).
6. The flexible connection section of the high-temperature flue gas exhaust system according to claim 4, wherein the first flexible connection section support ring assembly (9) and the second flexible connection section support ring assembly (10) are floating force-bearing structures, and the flexible connection section support spring assembly (15) is a constant force spring.
CN202210878414.9A 2022-07-25 2022-07-25 Flexible connection section of high-temperature flue gas exhaust system Pending CN115031249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210878414.9A CN115031249A (en) 2022-07-25 2022-07-25 Flexible connection section of high-temperature flue gas exhaust system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210878414.9A CN115031249A (en) 2022-07-25 2022-07-25 Flexible connection section of high-temperature flue gas exhaust system

Publications (1)

Publication Number Publication Date
CN115031249A true CN115031249A (en) 2022-09-09

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Application Number Title Priority Date Filing Date
CN202210878414.9A Pending CN115031249A (en) 2022-07-25 2022-07-25 Flexible connection section of high-temperature flue gas exhaust system

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