Sealing assembly for chimney connection

Abstract

The utility model relates to the technical field of chimney installation engineering, in particular to a sealing assembly for chimney connection, which comprises a segment connecting piece, the segment connecting piece is composed of an upper connecting assembly and a lower connecting assembly, the top of the lower connecting assembly is connected to the bottom of the upper connecting assembly through a bolt, and the lower connecting assembly is connected to the bottom of the lower connecting assembly through a bolt. The upper connecting assembly comprises a left installation assembly and a right installation assembly. According to the improved sealing assembly used for chimney connection, modular connection is achieved through up-down butt joint of the upper connecting assembly and the lower connecting assembly, the split type structure can better adapt to the deviations, and double sealing performance can be formed at the connecting position by using the two connecting modes in sequence; and the positions and the connecting strength of the two assemblies are adjusted correspondingly, tighter sealing is achieved, the turning plate flexibly controls airflow in the chimney in a reciprocating airflow pushing and turning mode, loss of internal heat is reduced, and the internal sealing effect of the chimney in the non-starting state can be enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to chimney installation engineering technical field, concretely is a kind of sealing assembly for chimney connection. BACKGROUND

[0002] Chimney is a kind of vertical tubular structure for discharging smoke, exhaust gas and hot gas, usually installed on industrial plant, boiler room, power plant, residential building etc., its role is to guide the exhaust gas generated during combustion to high altitude discharge, to reduce the direct influence on surrounding environment and personnel.

[0003] Connecting sealing assembly for connecting chimney refers to a group of parts for ensuring the connection between adjacent chimney segments or components is tight, preventing gas leakage, with certain sealing performance during the installation and splicing process of chimney.

[0004] The inventor found that the prior art has the following problems in the process of realizing the utility model: 1. The main structure for connecting segments currently adopts flange, and the segments are connected through flange and bolts, but since the flange is a ring structure, it may be difficult to accurately align and install during installation, which may cause gaps when connecting the upper and lower segments, and if a part is damaged, the entire segment may need to be replaced; 2. These connecting pieces are only used as single connecting units, and there is no independent sealing structure between the segments to ensure the sealing of the segments. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a sealing assembly for chimney connection to solve the problems of flange with ring structure not easy to butt joint, easy to cause displacement and lead to loose connection between upper and lower segments, and no independent sealing structure between segments. To achieve the above purpose, the utility model provides the following technical scheme: a sealing assembly for chimney connection, comprising a segment connecting piece, the segment connecting piece is composed of an upper connecting assembly and a lower connecting assembly, the top of the lower connecting assembly is connected to the bottom of the upper connecting assembly through bolts, the upper connecting assembly comprises a left mounting assembly and a right mounting assembly, the left mounting assembly and the right mounting assembly are connected through bolts, and the outer walls of the left mounting assembly and the right mounting assembly are respectively connected with sealing shaft sleeves at both ends.

[0006] The left mounting assembly comprises a segment left base and a left adapter seat, the top of the left adapter seat is welded to the bottom of the segment left base, the outer wall of the segment left base is welded with a left base connecting groove at both ends, the outer wall of the left adapter seat is welded with a left adapter seat connecting groove at both ends, the left adapter seat connecting groove is located below the left base connecting groove, and the inner wall of the left adapter seat is rotatably connected with a flap through a shaft.

[0007] The right mounting assembly comprises a segment right base and a right adapter seat, the top of the right adapter seat is welded to the bottom of the segment right base, the surface of the segment right base and the right adapter seat is respectively provided with a first connecting piece and a second connecting piece, the second connecting piece is located below the first connecting piece, the segment right base and the right adapter seat are connected to the segment left base and the left adapter seat through the first connecting piece and the second connecting piece, the outer wall of the segment right base is provided with a right base connecting groove corresponding to the left base connecting groove at both ends, the lower part of the right base connecting groove is provided with a third connecting piece welded to the outer wall of the right adapter seat at both ends, and the third connecting piece is inserted into the left adapter seat connecting groove.

[0008] Further preferably, the upper connecting assembly is composed of the left mounting assembly and the right mounting assembly through bolt combination, and the lower connecting assembly structure below the upper connecting assembly is composed of another set of left mounting assembly and right mounting assembly through bolt combination, and the top of the left mounting assembly and the right mounting assembly in the lower connecting assembly is respectively provided with an annular insertion strip for insertion and connection at the bottom of the left mounting assembly and the right mounting assembly in the upper connecting assembly, and the upper connecting assembly and the lower connecting assembly are connected through the upper and lower left adapter seats and right adapter seats respectively.

[0009] Further preferably, the left mounting assembly and the right mounting assembly are semicircular metal materials, the left adapter seat and the right adapter seat are both double-layer structures with a thermal insulation layer in the interlayer, and the inner wall of the left mounting assembly and the right mounting assembly is coated with a protective coating.

[0010] Further preferably, the diameter of the flap on the inner wall of the left adapter seat is consistent with the inner diameter between the left adapter seat and the right adapter seat, and the counterweight on the surface of the flap is distributed on the opposite side of the shaft installed in the left adapter seat.

[0011] Further preferably, the surface of the segment left base and the left adapter seat corresponding to the surface of the segment right base and the right adapter seat is respectively provided with a slot for insertion and connection of the first connecting piece and the second connecting piece, the surface of the left base connecting groove is provided with a threaded slot, the surface of the right base connecting groove is not provided with a threaded slot at the corresponding position, and the segment left base and the segment right base are connected through the left base connecting groove and the right base connecting groove.

[0012] Further preferably, the third connecting piece and the surface of the left adapter seat connecting groove are respectively provided with thread grooves with consistent specifications, and the left adapter seat and the right adapter seat are connected through the left adapter seat connecting groove and the third connecting piece by bolts.

[0013] Further preferably, the outer circle of the concentric position of the thread grooves on one side of the surface of the left base connecting groove and the left adapter seat connecting groove is respectively provided with a groove for threadedly connecting a sealing sleeve.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] In the utility model, the connection between chimney segments is realized through the upper and lower butt joint of the upper connecting assembly and the lower connecting assembly, the modular structure can be matched according to the overall length of the chimney, and a component can be individually replaced during subsequent maintenance, thereby reducing the maintenance time and cost; the internal structures of the upper connecting assembly and the lower connecting assembly are consistent and adopt two groups of left mounting assemblies and right mounting assemblies with the same structure; the two groups of assemblies are combined by using the plug-in and bolt fixing mode in sequence; double sealing can be formed at the connection position through the two connection modes, thereby increasing the reliability and stability of the sealing; the split structure can better adapt to the deviations; the position and connecting force of the two groups of assemblies are adjusted respectively, so that the sealing is more compact; compared with the flange plate of the integrated surrounding structure, the installation is more convenient, and the sealing performance is stronger.

[0016] In the utility model, the good heat preservation layer helps to reduce the heat loss inside the chimney, improves the utilization rate of subsequent energy, effectively reduces the surface temperature outside the chimney, and reduces the heat radiation to the surrounding environment and personnel; the fluorocarbon coating is adopted inside, has good fire resistance and corrosion resistance, prolongs the service life, effectively reduces the influence of the flowing gas on the chimney when the gas contacts the chimney, and the turning plate can automatically adjust the opening degree according to the starting strength inside the chimney segment, realizes flexible control of the airflow in the chimney through the airflow reciprocating turning mode, reduces the heat loss inside the chimney, and can also enhance the sealing effect inside the chimney in the non-use state. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is an upper connecting assembly structural schematic diagram of the utility model;

[0019] Figure 3 It is a right mounting assembly structural schematic diagram of the utility model;

[0020] Figure 4 It is a left mounting assembly structural schematic diagram of the utility model;

[0021] Figure 5 It is a lower connecting assembly structure schematic view of the utility model.

[0022] In the drawing: 1, segment connecting piece; 2, upper connecting assembly; 3, lower connecting assembly; 4, left mounting assembly; 401, segment left base; 402, left connecting seat; 403, left base connecting groove; 404, left connecting seat connecting groove; 405, flap; 406, counterweight; 5, right mounting assembly; 501, segment right base; 502, right connecting seat; 503, first connecting piece; 504, second connecting piece; 505, right base connecting groove; 506, third connecting piece; 6, sealing shaft sleeve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill workers in the field without making creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: a sealing assembly for chimney connection, including segment connecting piece 1, segment connecting piece 1 is constituted by upper connecting assembly 2 and lower connecting assembly 3, the top of lower connecting assembly 3 is connected by bolt on the bottom of upper connecting assembly 2, and upper connecting assembly 2 includes left mounting assembly 4 and right mounting assembly 5, and left mounting assembly 4 and right mounting assembly 5 are connected by bolt, and sealing shaft sleeve 6 is respectively connected in the outer wall both ends of left mounting assembly 4 and right mounting assembly 5.

[0025] Left mounting assembly 4 includes segment left base 401 and left connecting seat 402, and the top of left connecting seat 402 is welded on the bottom of segment left base 401, left base connecting groove 403 is respectively welded in the outer wall both ends of segment left base 401, left connecting seat connecting groove 404 is respectively welded in the outer wall both ends of left connecting seat 402, left connecting seat connecting groove 404 is respectively located below left base connecting groove 403, flap 405 is rotatably connected by shaft in the inner wall between left connecting seat 402, and counterweight 406 is embeddedly installed on the surface of flap 405.

[0026] The right mounting assembly 5 comprises a segment right base 501 and a right connecting seat 502, the top of the right connecting seat 502 is welded to the bottom of the segment right base 501, the surfaces of the segment right base 501 and the right connecting seat 502 are respectively provided with a first connecting piece 503 and a second connecting piece 504, the second connecting piece 504 is below the first connecting piece 503, the segment right base 501 and the right connecting seat 502 are connected to the segment left base 401 and the left connecting seat 402 through the first connecting piece 503 and the second connecting piece 504, the right base connecting grooves 505 corresponding to the left base connecting grooves 403 are respectively formed at the two ends of the outer wall of the segment right base 501, the third connecting pieces 506 welded to the outer wall of the right connecting seat 502 are respectively formed below the right base connecting grooves 505, and the third connecting pieces 506 are inserted and connected into the left connecting seat connecting grooves 404.

[0027] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 5 , the upper connecting assembly 2 is composed of the left mounting assembly 4 and the right mounting assembly 5 through bolt combination, the lower connecting assembly 3 below the upper connecting assembly 2 is composed of another set of left mounting assembly 4 and right mounting assembly 5 through bolt combination, the top of the left mounting assembly 4 and the right mounting assembly 5 in the lower connecting assembly 3 is respectively provided with an annular insertion strip for being inserted and connected to the bottom of the left mounting assembly 4 and the right mounting assembly 5 in the upper connecting assembly 2, and the upper connecting assembly 2 and the lower connecting assembly 3 are connected through the upper and lower left connecting seats 402 and the right connecting seats 502 respectively through bolts; the connection between the chimney segments is realized through the upper and lower butt joint of the upper connecting assembly 2 and the lower connecting assembly 3, the modular structure can be matched according to the overall length of the chimney, and a part can be replaced alone during subsequent maintenance, thereby reducing the maintenance time and cost, at the same time, the internal structures of the upper connecting assembly 2 and the lower connecting assembly 3 are consistent and both adopt two sets of left mounting assembly 4 and right mounting assembly 5 with the same structure, which are combined through insertion and bolt fixation in sequence, double sealing can be formed at the connection part through the two connection modes, thereby increasing the reliability and stability of the sealing, and the same structure helps to keep the sealing performance consistent during installation and use, thereby improving the overall sealing effect, since there may be certain size deviation during the manufacturing and installation of the chimney segments, the split structure can better adapt to these deviations, and more tight sealing can be realized by adjusting the positions and connection forces of the two sets of assemblies respectively, compared with the flange plate of the integrated ring structure, the installation is more convenient and the sealing performance provided is stronger.

[0028] In the embodiment, as shown in Figure 2 、 Figure 3 and Figure 4As shown, the left mounting assembly 4 and the right mounting assembly 5 are semicircular metal materials, and the left adapter seat 402 and the right adapter seat 502 are metal materials with double-layer structure and sandwiched with thermal insulation layer, and the inner walls of the left mounting assembly 4 and the right mounting assembly 5 are coated with protective coating; the good thermal insulation layer helps to reduce heat loss inside the chimney, improve the utilization rate of subsequent energy, and effectively reduce the surface temperature outside the chimney, reduce the heat radiation to the surrounding environment and personnel, and the internal fluorocarbon coating has good fire resistance and corrosion resistance, prolongs the service life, and effectively reduces the impact of the flowing gas on it when it contacts.

[0029] In this embodiment, as shown in Figure 2 , Figure 3 and Figure 4 , the diameter of the flap 405 of the inner wall of the left adapter seat 402 is consistent with the inner diameter between the left adapter seat 402 and the right adapter seat 502, and the counterweight blocks 406 on the surface of the flap 405 are distributed on the opposite side of the flap 405 from the installation shaft in the left adapter seat 402; the structure of the flap 405 can automatically adjust its opening degree according to the starting strength inside the chimney segment, thereby flexibly controlling the discharge amount in the chimney, playing a certain buffering role on the rising airflow, reducing the direct impact of the large-area rapid rising airflow on the internal structure of the chimney and the subsequent equipment, and the rotating structure can also reduce the heat loss inside the chimney to a certain extent, further achieving the effect of energy saving, and at the same time, the distribution position of the counterweight blocks 406 helps to balance the flap 405 after resetting when it is turned over by the airflow in the left adapter seat 402 and the right adapter seat 502.

[0030] In this embodiment, as shown in Figure 2 , Figure 3 and Figure 4 , the segment left base 401 and the left adapter seat 402 correspondingly fit on the surfaces of the segment right base 501 and the right adapter seat 502, and the grooves for inserting and connecting the first connecting piece 503 and the second connecting piece 504 are respectively arranged on the surfaces of the segment right base 501 and the right adapter seat 502, and the threaded grooves are arranged on the surface of the left base connecting groove 403 and the surface of the right base connecting groove 505, and the segment left base 401 and the segment right base 501 are connected by the left base connecting groove 403 and the right base connecting groove 505 through bolts; after the left mounting assembly 4 and the right mounting assembly 5 are preliminarily positioned and connected by the plug-in mode, they are fixed again by bolts to ensure the fastening of the connection part, thereby achieving double protection to achieve the best sealing state.

[0031] In this embodiment, as shown in Figure 2 , Figure 3 and Figure 4As shown, the surface of the third connecting piece 506 and the left adapter base connecting groove 404 is respectively provided with a threaded slot, and the left adapter base 402 and the right adapter base 502 are connected by the left adapter base connecting groove 404 and the third connecting piece 506 through bolts.

[0032] As shown in the embodiment, Figure 1 and Figure 3 , the outer circle of the concentric threaded slot on one side of the surface of the left base connecting groove 403 and the left adapter base connecting groove 404 is respectively provided with a slot for threadedly connecting a sealing sleeve 6; the structure of the sealing sleeve 6 can protect the bolt shaft head at this side position from being eroded by the external environment, thereby reducing the possibility of rusting or loosening of the shaft head, and further improving the overall sealing performance of the connecting part.

[0033] The use method and advantages of the sealing assembly for chimney connection are as follows:

[0034] As shown in the embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, first, the segment connector 1 is selected according to the number of chimney segments, and each two chimney segments distributed above and below are combined through the upper connecting assembly 2 and the lower connecting assembly 3. First, one end of the segment left base 401 is sleeved on the edge of the outer wall of the lower position of the chimney segment above, and then the segment right base 501 is taken up and inserted into the notch provided on the surface of the segment left base 401 through the first connecting piece 503 and the second connecting piece 504, respectively. When the first connecting piece 503 and the second connecting piece 504 are inserted, the third connecting piece 506 on one side is inserted into the inside of the left adapter seat connecting groove 404. After the installation of the insertion is completed, the left base connecting groove 403 and the right base connecting groove 505 are screwed through the bolts, respectively, and then the bolts are threaded through the left adapter seat connecting groove 404 and the third connecting piece 506, and the double hexagonal nut is fixed at the bolt on the side. Then, the sealing shaft sleeve 6 is screwed on the surface of the left base connecting groove 403 and the left adapter seat connecting groove 404, respectively. After the installation of the upper connecting assembly 2 is completed, the lower connecting assembly 3 is installed on the other group of chimney segments close to the upper end through the same installation method. Then, the segment left base 401 and the segment right base 501 with the annular insertion strip structure in the lower connecting assembly 3 are inserted into the annular insertion strip provided on the bottom of the segment left base 401 and the segment right base 501 above, and the upper and lower two groups of segment left bases 401 and segment right bases 501 are fixed again through the bolt connection. It should be noted that in order to ensure the transportation of flue gas, only one group of flap 405 structure is provided in each segment connector 1. The structure is located on one side of the left mounting assembly 4 in the upper connecting assembly 2. When the flap 405 is turned over under the action of the airflow, the counterweight 406 can generate a torque opposite to the gravity of the flap 405, which helps to reset and keep balance. Through this way of reciprocating the airflow to push the flap, the airflow in the chimney can be flexibly controlled, the internal heat loss can be reduced, and the sealing effect of the chimney in the non-use state can be enhanced.

[0035] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sealing assembly for a chimney connection, comprising a segment connector (1), characterised in that: The segment connecting piece (1) is composed of an upper connecting assembly (2) and a lower connecting assembly (3), the top of the lower connecting assembly (3) is bolted to the bottom of the upper connecting assembly (2), the upper connecting assembly (2) comprises a left mounting assembly (4) and a right mounting assembly (5), the left mounting assembly (4) and the right mounting assembly (5) are bolted, and the outer walls of the left mounting assembly (4) and the right mounting assembly (5) are respectively threadedly connected with sealing shaft sleeves (6); The left mounting assembly (4) comprises a segment left base (401) and a left connecting seat (402), the top of the left connecting seat (402) is welded to the bottom of the segment left base (401), the outer walls of the segment left base (401) are respectively welded with left base connecting grooves (403), the outer walls of the left connecting seat (402) are respectively welded with left connecting seat connecting grooves (404), the left connecting seat connecting grooves (404) are respectively located below the left base connecting grooves (403), and the inner walls of the left connecting seat (402) are rotatably connected with flaps (405) through shaft rods. The right mounting assembly (5) comprises a segment right base (501) and a right connecting seat (502), the top of the right connecting seat (502) is welded to the bottom of the segment right base (501), the surfaces of the segment right base (501) and the right connecting seat (502) are respectively provided with first connecting pieces (503) and second connecting pieces (504), the second connecting pieces (504) are located below the first connecting pieces (503), the segment right base (501) and the right connecting seat (502) are inserted and connected to the segment left base (401) and the left connecting seat (402) through the first connecting pieces (503) and the second connecting pieces (504), the outer walls of the segment right base (501) are respectively provided with right base connecting grooves (505) corresponding to the left base connecting grooves (403) on one side, the lower portions of the right base connecting grooves (505) are respectively provided with third connecting pieces (506) welded to the outer walls of the right connecting seat (502), and the third connecting pieces (506) are inserted and connected to the interiors of the left connecting seat connecting grooves (404).

2. A sealing assembly for a chimney connection according to claim 1, characterized in that: The upper connecting assembly (2) is composed of the left mounting assembly (4) and the right mounting assembly (5) through bolt combination, the structure of the lower connecting assembly (3) below the upper connecting assembly (2) is consistent with the other group of left mounting assemblies (4) and right mounting assemblies (5) through bolt combination, the tops of the left mounting assemblies (4) and the right mounting assemblies (5) in the lower connecting assembly (3) are respectively provided with annular insertion strips for being inserted and connected to the bottoms of the left mounting assemblies (4) and the right mounting assemblies (5) in the upper connecting assembly (2), and the upper connecting assembly (2) and the lower connecting assembly (3) are respectively connected through the upper and lower groups of left connecting seats (402) and right connecting seats (502) through bolts.

3. A sealing assembly for a chimney connection according to claim 1, characterized in that: The left mounting assembly (4) and the right mounting assembly (5) are semicircular metal materials, the left connecting seat (402) and the right connecting seat (502) are metal materials with double-layer structure and an insulating layer in the interlayer, and the inner walls of the left mounting assembly (4) and the right mounting assembly (5) are coated with a protective coating.

4. A seal assembly for a chimney connection according to claim 1, characterised in that: The diameter of the flap (405) of the inner wall of the left connecting seat (402) is consistent with the inner diameter between the left connecting seat (402) and the right connecting seat (502), and the counterweight (406) on the surface of the flap (405) is distributed on the opposite side of the flap (405) relative to the installation shaft in the left connecting seat (402).

5. A seal assembly for a chimney connection according to claim 1, characterised in that: The segment left base (401) and the left connecting seat (402) are correspondingly attached to the surfaces of the segment right base (501) and the right connecting seat (502), and the left base connecting groove (403) and the right base connecting groove (505) are respectively provided with threaded grooves, and the segment left base (401) and the segment right base (501) are connected by the left base connecting groove (403) and the right base connecting groove (505) through bolts.

6. A seal assembly for a chimney connection according to claim 1, characterised in that: The third connecting piece (506) and the left connecting seat connecting groove (404) are respectively provided with threaded grooves with the same specifications, and the left connecting seat (402) and the right connecting seat (502) are connected by the left connecting seat connecting groove (404) and the third connecting piece (506) through bolts.

7. A seal assembly for a chimney connection according to claim 1, characterised in that: The outer circle of the concentric threaded grooves on one side of the surfaces of the left base connecting groove (403) and the left connecting seat connecting groove (404) is respectively provided with a groove for threadedly connecting a sealing shaft sleeve (6).

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