CN114909525A - Fireproof blocking structure of wall-penetrating pipeline and installation method thereof - Google Patents
Fireproof blocking structure of wall-penetrating pipeline and installation method thereof Download PDFInfo
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- CN114909525A CN114909525A CN202210404751.4A CN202210404751A CN114909525A CN 114909525 A CN114909525 A CN 114909525A CN 202210404751 A CN202210404751 A CN 202210404751A CN 114909525 A CN114909525 A CN 114909525A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/04—Sealing to form a firebreak device
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Abstract
The invention discloses a fireproof blocking structure of a through-wall pipeline and an installation method of the fireproof blocking structure, and belongs to the technical field of pipeline installation. The device comprises a pipeline to be installed, an outer sleeve, two flexible fireproof packing rings, a replacement pipe, a fixed hoop, two end covers and a plurality of tensioning mechanisms; according to the invention, the flexible fireproof filler is pre-filled in the cavity formed by the wing ring, the gland and the substitute pipe, when the substitute pipe is ejected out by the pipeline, the bolt on one side of the gland without the limiting groove is screwed down, under the action of the bolt and the tensioning pipe, the two gland covers are gradually tensioned and close, the filler is extruded, and gaps among all parts are blocked. This device simple structure, simple operation ensure that sleeve pipe installation and fire prevention shutoff once survive, reduce the formwork link of hanging in the hole process, have avoided leading to the condition that flexible fire prevention filler drops because of all kinds of reasons, can accurate control flexible fire prevention shutoff quantity simultaneously, ensure that the pipeline is in the sleeve pipe and center the setting, improve the efficiency of construction, practice thrift construction cost, improve construction quality and aesthetic property.
Description
Technical Field
The invention belongs to the technical field of pipeline installation, and particularly relates to a fireproof blocking structure of a through-wall pipeline and an installation method thereof.
Background
Pipeline sheathed tube fire prevention shutoff, including vertical sleeve pipe shutoff and horizontal sleeve pipe shutoff, according to the construction actual conditions, generally divide into two major steps of sleeve pipe installation and fire prevention shutoff, the sleeve pipe installation is followed pipeline installation and is gone on in step, the time that the fire prevention shutoff begins has two kinds of circumstances, the condition one: the casing is plugged immediately after installation, and the condition two is as follows: and uniformly plugging in the later stage of engineering construction. The ubiquitous problem of carrying out the fire prevention shutoff immediately after the sleeve pipe installation is: disturbing the sleeve when a floor slab hanging hole or a wall surface is closed, so that the sleeve and a pipeline are not coaxial and centered, the sleeve is inclined, a fireproof plugging material falls off and the like; after plugging is finished, the fireproof plugging is damaged in other professional construction, and the plugging material is greatly wasted no matter the fireproof plugging material naturally falls off or falls off due to disturbance of external factors; the drawback of uniformly plugging in the later stage of engineering construction is as follows: when the fireproof plugging is carried out, the hanging hole of the floor slab or the closing-in of the wall surface is finished, the sleeve is not adjusted to be coaxial with the pipeline and arranged in the middle when the hanging hole of the floor slab or the closing-in of the wall surface is carried out, and the sleeve cannot be adjusted any more when the fireproof plugging is carried out in the later stage, so that the attractiveness of sleeve installation is influenced; the sleeve pipe quantity is very much, and to the sleeve pipe that the wall level set up, the sleeve pipe both ends are located the wall both sides, and every sleeve pipe all need carry out the shutoff from the wall both sides, and need set up movable scaffold, shift scaffold and carry out the shutoff, and inefficiency, extravagant manual work and delay the time limit for a project.
Disclosure of Invention
In order to solve the foregoing problems, embodiments of the present invention provide a fire blocking structure for a wall-through pipe and an installation method thereof. The technical scheme is as follows:
on one hand, the embodiment of the invention provides a fireproof blocking structure of a wall-through pipeline, which comprises a pipeline 1 to be installed, an outer sleeve 2, two flexible fireproof packing rings 3 coaxially arranged in two ends of the outer sleeve 2, a substitution pipe 4, a fixed hoop 5, two end covers 6 on the outer sides of two ends of the outer sleeve 2 and a plurality of tensioning mechanisms 7 which can lock the two end covers 6 on the outer sleeve 2 and have adjustable length; two wing rings 8 are coaxially arranged on the inner walls of the two ends of the outer sleeve 2, and two end covers 6 are respectively positioned on the outer end faces of the two flexible fireproof packing rings 3; the inner end surfaces of the flexible fireproof packing rings 3 are respectively abutted against the outer sides of the wing rings 8 on the corresponding sides, and the outer end surfaces of the flexible fireproof packing rings protrude outwards relative to the corresponding ends of the outer sleeve 2; the outer diameter of the replacement pipe 4 is slightly larger than that of the pipeline 1 to be installed, the replacement pipe is coaxially arranged in the outer sleeve 2, two ends of the replacement pipe penetrate out of the end cover 6 at the corresponding end, and the outer wall of the replacement pipe is in clearance fit with the inner edge of the end cover 6, the inner edge of the wing ring 8 and the inner edge of the flexible fireproof packing ring 3; a plurality of tensioning mechanisms 7 are uniformly distributed around the substitution tube 4, are positioned between the outer sleeve 2 and the substitution tube 4, and are connected with two end covers 6 which can enable the two end covers 6 to be close to each other and abut against the corresponding ends of the outer sleeve 2; the wing ring 8, the flexible fireproof packing ring 3 and the end cover 6 are all provided with through holes 9 for the tensioning mechanism 7 to pass through; during installation, the pipeline 1 to be installed is used for replacing the replacement pipe 4, the two end covers 6 are close to each other and abut against the corresponding ends of the outer sleeve 2 through the tensioning mechanism 7, and the flexible fireproof packing ring 3 is pressed to expand so as to be in close contact with the outer wall of the pipeline 1 to be installed; during vertical installation, the fixed hoop 5 is tightly held and fixed on the outer wall of the outer sleeve 2 and is hung on the upper side of the floor slab 14, and the end cover 6 below shields the hole 15 and props against the lower side of the floor slab 14.
The end cover 6, the wing ring 8 and the flexible fireproof packing ring 3 in the embodiment of the invention are all circular ring structures coaxially arranged with the outer sleeve 2, and the inner diameters of the circular ring structures are equal to the outer diameter of the substitute pipe 4; the outer diameter of the flexible fireproof packing ring 3 and the outer diameter of the wing ring 8 are both equal to the inner diameter of the outer sleeve 2; when the horizontal installation is carried out, the outer diameters of the two end covers 6 are larger than the inner diameter of the outer sleeve 2 and smaller than the outer diameter of the outer sleeve 2; when vertically installed, the outer diameter of the upper end cover 6 is larger than the inner diameter of the outer sleeve 2 and smaller than the outer diameter of the outer sleeve 2, and the outer diameter of the lower end cover 6 is larger than the outer diameter of the outer sleeve 2 and larger than the diameter of the hole 15.
The tensioning mechanism 7 in the embodiment of the invention comprises a tensioning pipe 10 and two tensioning bolts 11 which are in threaded connection with two ends of the tensioning pipe 10, wherein the tensioning pipe 10 and the tensioning bolts 11 are both parallel to the outer sleeve 2; the tensioning pipe 10 is positioned between the outer sleeve 2 and the substitute pipe 4 and between the two wing rings 8, and two ends of the tensioning pipe are provided with internal threads matched with the tensioning bolts 11; the inner end of the screw rod of the tension bolt 11 sequentially penetrates through the end cover 6, the flexible fireproof packing ring 3 and the wing ring 8 at the same end and then is connected with the internal thread at the corresponding end, and the head of the tension bolt abuts against the outer side of the end cover 6 at the corresponding end; and the outer side of one end cover 6 is provided with a limiting groove 16 for the head of the tension bolt 11 to be embedded and preventing the tension bolt 11 from rotating, and the end cover 6, the flexible fireproof packing ring 3 and the wing ring 8 are all provided with through holes 9 for the tension bolt 11 to pass through.
Specifically, the number of the tightening mechanisms 7 in the embodiment of the present invention is two, and the two tightening mechanisms 7 are symmetrically arranged about the axis of the outer tube 2.
One end or two ends of the substitute pipe 4 in the embodiment of the invention are provided with a butt joint mechanism matched with the pipeline 1 to be installed, the butt joint mechanism comprises a thin-wall end 12 at the end part of the substitute pipe 4 and a baffle ring 13 between the end part of the substitute pipe 4 and the thin-wall end 12, the baffle ring 13 is coaxially arranged at the end part of the inner wall of the substitute pipe 4, and the inner diameter of the baffle ring 13 is smaller than the outer diameter of the pipeline 1 to be installed; the thin-walled end 12 is arranged coaxially with the substitute pipe 4, has an outer diameter equal to that of the substitute pipe 4, and has an inner diameter larger than that of the substitute pipe 4 and larger than that of the pipe 1 to be installed.
Specifically, the length of the replacement tube 4 in the embodiment of the present invention is longer than that of the outer tube 2, which is a hard plastic tube whose outer wall is coated with a release agent or lubricant.
The fixing hoop 5 in the embodiment of the invention comprises two semicircular hoops which are oppositely arranged, corresponding ends of the two semicircular hoops are fixed through fixing bolts, the inner diameter of each semicircular hoop is equal to the outer diameter of the outer sleeve 2, and the distance between the two ends of each semicircular hoop is larger than the diameter of the hole 15.
Specifically, the outer diameter of the replacement pipe 4 in the embodiment of the present invention is 1-3mm larger than that of the pipe 1 to be installed, and the outer end face of the flexible fireproof packing ring 3 protrudes outward by 2-5mm relative to the corresponding end of the outer sleeve 2.
On the other hand, the embodiment of the invention also provides an installation method of the fireproof blocking structure of the through-wall pipeline, which comprises the following steps:
s101: connecting a pipeline 1 to be installed with a butt joint mechanism of a substitute pipe 4, ejecting the substitute pipe 4 out of an outer sleeve 2, and coaxially arranging the pipeline 1 to be installed in a flexible fireproof packing ring 3;
s102: the fixing hoop 5 is tightly held and fixed on the outer wall of the outer sleeve 2 and is hung on the upper side of the floor slab 14, the lower part of the outer sleeve 2 is coaxially arranged in the hole 15, and the lower end of the outer sleeve is flush with the lower side of the floor slab 14;
s103: rotating the upper tensioning bolt 11 to enable the two end covers 6 to be close to each other and abut against the corresponding ends of the outer casing 2, abutting the lower end cover 6 against the lower side of the floor slab 14, and expanding the flexible fireproof packing ring 3 to be in close contact with the outer wall of the pipeline 1 to be installed;
s104: and after the installation pipeline 1 is poured and fixed, taking down the fixed hoop 5.
Preferably, in step S103, the plurality of tightening bolts 11 above are sequentially rotated in a clockwise or counterclockwise direction.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the embodiment of the invention provides a fireproof blocking structure of a wall-penetrating pipeline and an installation method thereof, which avoid the problem that the pipeline blocking needs to be carried out for multiple times of sleeve installation in the early stage and fireproof blocking in the later stage, avoid the condition that flexible fireproof fillers fall off due to various reasons, simultaneously can accurately control the using amount of the flexible fireproof blocking (the flexible fireproof blocking is controlled by the relative position of a wing ring and an outer sleeve end), ensure that the pipeline is arranged in the sleeve in the center (the outer diameter of the pipeline to be installed is slightly smaller than the inner diameter of a flexible fireproof filling ring, and the center is basically realized when a substitute pipe is replaced), improve the construction efficiency, save the construction cost and improve the construction quality and the attractiveness.
Drawings
FIG. 1 is a schematic structural diagram of a fireproof blocking structure of a through-wall pipeline provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a fire-blocking structure of a through-wall pipeline provided by an embodiment of the invention during installation;
FIG. 3 is a schematic structural view of the outer sleeve;
FIG. 4 is a schematic structural view of the upper end cap;
FIG. 5 is a schematic view of the structure of the lower end cap;
fig. 6 is a partially enlarged view of fig. 1.
In the figure: 1 treat the installation pipeline, 2 outer sleeves, 3 flexible fire-proof packing rings, 4 replacement pipes, 5 fixed hoops, 6 end covers, 7 tensioning mechanisms, 8 wing rings, 9 through holes, 10 tensioning pipes, 11 tensioning bolts, 12 thin-wall ends, 13 retaining rings, 14 floor slabs, 15 holes and 16 limiting grooves.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 6, an embodiment of the present invention provides a fire blocking structure for a wall-penetrating pipe, including a pipe 1 to be installed, an outer sleeve 2, two flexible fire-proof packing rings 3 coaxially disposed in two ends of the outer sleeve 2, a replacement pipe 4, a fixing hoop 5 (which may not be used when horizontally installed), two end caps 6 (which can close the ends of the outer sleeve 2) outside the two ends of the outer sleeve 2, and a plurality of (2 to 4) tensioning mechanisms 7 which can lock the two end caps 6 to the outer sleeve 2 and have adjustable lengths, and the like. Two wing rings 8 (the outer edges of which are fixed on the inner wall of the outer sleeve 2) are coaxially arranged on the inner walls of the two ends of the outer sleeve 2, and a certain distance is reserved between the wing rings 8 and the end part of the outer sleeve 2 so as to ensure that the outer end surface of the flexible fireproof packing ring 3 slightly protrudes outwards relative to the outer sleeve 2. Two end covers 6 are respectively positioned on the outer end faces of the two flexible fireproof packing rings 3. The inner end surfaces of the flexible fireproof packing rings 3 respectively lean against the outer sides of the wing rings 8 on the corresponding sides, and the outer end surfaces of the flexible fireproof packing rings protrude outwards relative to the corresponding ends of the outer sleeve 2. The outer diameter of the replacement pipe 4 is slightly larger than that of the pipeline 1 to be installed, the replacement pipe is coaxially arranged in the outer sleeve 2, two ends of the replacement pipe penetrate out of the end cover 6 at the corresponding end, and the outer wall of the replacement pipe is in clearance fit with the inner edge of the end cover 6, the inner edge of the wing ring 8 and the inner edge of the flexible fireproof packing ring 3 to ensure centering. A plurality of tensioning means 7 are uniformly distributed around the substitute tube 4 (on the same circle coaxial with the outer sleeve 2, the included angle between two adjacent tensioning means 7 is equal), are located between the outer sleeve 2 and the substitute tube 4, are parallel to the outer sleeve 2, and connect two end caps 6, which enable the two end caps 6 (in practice, the wing rings 8 towards the corresponding ends to be close to each other) to be close to each other and to be abutted against the corresponding ends of the outer sleeve 2. After installation, the end cover 6, the wing ring 8, the outer sleeve 2 and the pipeline 1 to be installed form an annular cavity for accommodating the flexible fireproof packing ring 3. The wing ring 8, the flexible fireproof packing ring 3 and the end cover 6 are all provided with through holes 9 for the tensioning mechanism 7 to pass through. During the installation, use and wait to install pipeline 1 and replace pipe 4, let two end covers 6 be close to each other and lean on outer sleeve pipe 2's corresponding end through taut mechanism 7, flexible fire prevention filler ring 3 pressurized inflation is in order to realize sealed with the outer wall in close contact with of waiting to install pipeline 1. When the device is vertically installed, the fixed hoop 5 (two ends of which are arranged on the upper side of the floor slab 14) is tightly held and fixed on the outer wall of the outer sleeve 2 and is hung on the upper side of the floor slab 14, and the end cover 6 below shields the hole 15 and props against the lower side of the floor slab 14. The term "through-wall" as used herein means a wall surface or a floor slab.
Referring to fig. 1-5, the end cap 6, the wing ring 8 and the flexible fireproof packing ring 3 in the embodiment of the present invention are all circular ring structures coaxially arranged with the outer sleeve 2, and the inner diameters thereof are all equal to the outer diameter of the substitute pipe 4. The outer diameter of the flexible fireproof packing ring 3 and the outer diameter of the wing ring 8 are equal to the inner diameter of the outer sleeve 2. When installed horizontally, the outer diameters of the two end caps 6 are larger than the inner diameter of the outer sleeve 2 and smaller than the outer diameter of the outer sleeve 2. I.e. horizontally, the two end caps 6 are of the same size. When vertically installed, the outer diameter of the upper end cover 6 is larger than the inner diameter of the outer sleeve 2 and smaller than the outer diameter of the outer sleeve 2, and the outer diameter of the lower end cover 6 is larger than the outer diameter of the outer sleeve 2 and larger than the diameter of the hole 15. I.e. when mounted vertically, the lower end cap 6 is larger and the upper end cap 6 is smaller. Specifically, the end cap 6 and the wing ring 8 are both metal rings.
Referring to fig. 1 to 5, the tightening mechanism 7 according to the embodiment of the present invention includes a tightening pipe 10 and two tightening bolts 11 screwed to both ends of the tightening pipe 10, and both the tightening pipe 10 and the tightening bolts 11 are parallel to the outer tube 2. The tensioning tube 10 is located between the outer sleeve 2 and the substitute tube 4 and between the two wing rings 8, and its two ends (the middle of which is of hollow tube structure) are provided with internal threads that cooperate with the tensioning bolt 11 (the thread directions at the two ends are the same to ensure that the two end caps 6 can move relative to each other). The inner end of the screw rod of the tension bolt 11 sequentially passes through the (through hole 9 of the) end cover 6, the (through hole 9 of the) flexible fireproof packing ring 3 and the (through hole 9 of the) wing ring 8 at the same end and then is connected with the internal thread of the corresponding end, and the head of the tension bolt abuts against the outer side of the end cover 6 of the corresponding end. The outer side of one of the end covers 6 (specifically, the lower end cover 6) is provided with a limiting groove 16 (specifically, a hexagonal groove matched with the head) for embedding the head of the tension bolt 11 and preventing the rotation of the tension bolt 11, the end cover 6, the flexible fireproof packing ring 3 and the wing ring 8 are all provided with a through hole 9 (specifically, a round hole slightly larger than a screw rod) for the tension bolt 11 to pass through, and the through hole 9 is preferably located in the middle between the inner edge and the outer edge of the flexible fireproof packing ring 3. Of course, the tensioning mechanism 7 may have other configurations, such as an upper tensioning bolt 11 screwed to the tensioning tube 10 and a lower tensioning bolt 11 fixedly connected to the tensioning tube 10.
Specifically, the number of the tightening mechanisms 7 in the embodiment of the present invention is two, and the two tightening mechanisms 7 are arranged symmetrically with respect to the axis of the outer tube 2. Correspondingly, two through holes 9 are symmetrically formed in the end cover 6, two through holes 9 are symmetrically formed in the wing ring 8, and two through holes 9 are symmetrically formed in the flexible fireproof packing ring 3.
Wherein, referring to fig. 1 and 6, one or both ends (preferably both ends) of the substitution tube 4 in the embodiment of the present invention is provided with a docking mechanism cooperating with the pipe 1 to be installed. The butt joint mechanism comprises a thin-wall end 12 at the end part of the substitute pipe 4 and a baffle ring 13 between the end part of the substitute pipe 4 and the thin-wall end 12, wherein the baffle ring 13 is coaxially arranged at the end part of the inner wall of the substitute pipe 4, and the inner diameter of the baffle ring is smaller (slightly smaller) than the outer diameter of the pipeline 1 to be installed. The thin-walled end 12 is arranged coaxially with the substitute pipe 4, has an outer diameter equal to the outer diameter of the substitute pipe 4, and has an inner diameter larger than the inner diameter of the substitute pipe 4 and larger than the outer diameter of the pipe 1 to be installed. When the pipe 1 to be installed is to replace the replacement pipe 4, the end of the pipe 1 to be installed is inserted into the thin-walled end 12 and abuts against the outside of the stopper ring 13. The length of the thin-walled end 12 may be small, such as 5 mm.
In particular, the length of the substitution tube 4 in the embodiment of the invention is greater than the length of the outer sleeve 2, which is a rigid plastic tube, the outer wall of which is coated with a release agent or lubricant to facilitate its separation from the flexible fire-resistant packing ring 3.
Referring to fig. 2, the fixing hoop 5 in the embodiment of the present invention includes two semicircular hoops that are oppositely disposed, corresponding ends (along a radial direction of the two semicircular hoops, forming a structure similar to Ω) of the two semicircular hoops are fixed by fixing bolts, an inner diameter of the semicircular hoop is equal to an outer diameter of the outer sleeve 2, and a distance between two ends of the semicircular hoop is greater than a diameter of the opening 15.
Specifically, the outer diameter of the replacement pipe 4 in the embodiment of the present invention is 1-3mm larger than the outer diameter of the pipe 1 to be installed, and the outer end face of the flexible fireproof packing ring 3 protrudes outward by 2-5mm relative to the corresponding end of the outer sleeve 2.
Example 2
Referring to fig. 1-2, an embodiment of the present invention further provides an installation method of the fire blocking structure of the through-wall pipeline disclosed in embodiment 1, where the method is a process when the fire blocking structure is vertically installed, and the method includes:
s101: and connecting the pipeline 1 to be installed with a butt joint mechanism of the substitute pipe 4, ejecting the substitute pipe 4 from the outer sleeve 2, and coaxially arranging the pipeline 1 to be installed in the flexible fireproof packing ring 3.
S102: the fixing hoop 5 is tightly held and fixed on the outer wall of the outer sleeve 2 (vertically arranged) and hung on the upper side of the floor slab 14, the lower part of the outer sleeve 2 is coaxially arranged in the hole 15, and the lower end of the outer sleeve is flush with the lower side of the floor slab 14.
S103: rotating the upper tie bolts 11 brings the two end caps 6 close to each other and against the corresponding ends of the outer casing 2, the lower end cap 6 against the underside of the floor 14, and the flexible fire-resistant packing ring 3 expands to make intimate contact with the outer wall of the pipe 1 to be installed.
S104: and after the installation pipeline 1 is poured and fixed, taking down the fixed hoop 5.
Preferably, in step S103, the plurality of tightening bolts 11 above are sequentially rotated in a clockwise or counterclockwise direction.
When the fireproof blocking structure of the through-wall pipeline is horizontally installed, the outer sleeve 2 horizontally penetrates through the hole 15, the pipeline 1 to be installed is fixed through the corresponding support, and the tension bolt 11 on one side without the limiting groove 16 is rotated.
Wherein, the replacement pipe 4 and the fixing hoop 5 in the embodiment can be reused, so as to reduce the cost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The fireproof blocking structure of the wall-through pipeline comprises a pipeline (1) to be installed, an outer sleeve (2) and two flexible fireproof packing rings (3) coaxially arranged in two ends of the outer sleeve (2); the device is characterized by also comprising a replacement pipe (4), a fixed hoop (5), two end covers (6) at the outer sides of two ends of the outer sleeve (2) and a plurality of tensioning mechanisms (7) which can lock the two end covers (6) on the outer sleeve (2) and have adjustable length; two wing rings (8) are coaxially arranged on the inner walls of the two ends of the outer sleeve (2), and two end covers (6) are respectively positioned on the outer end faces of the two flexible fireproof packing rings (3); the inner end surfaces of the flexible fireproof packing rings (3) respectively abut against the outer sides of the wing rings (8) on the corresponding sides, and the outer end surfaces of the flexible fireproof packing rings protrude outwards relative to the corresponding ends of the outer sleeves (2); the outer diameter of the replacement pipe (4) is slightly larger than that of the pipeline (1) to be installed, the replacement pipe is coaxially arranged in the outer sleeve (2), two ends of the replacement pipe penetrate out of the end cover (6) at the corresponding end, and the outer wall of the replacement pipe is in clearance fit with the inner edge of the end cover (6), the inner edge of the wing ring (8) and the inner edge of the flexible fireproof packing ring (3); the tensioning mechanisms (7) are uniformly distributed around the replacement pipe (4), are positioned between the outer sleeve (2) and the replacement pipe (4), are connected with the two end covers (6), and can enable the two end covers (6) to be close to each other and abut against the corresponding ends of the outer sleeve (2); through holes (9) for the tensioning mechanism (7) to pass through are formed in the wing ring (8), the flexible fireproof packing ring (3) and the end cover (6); during installation, the pipeline (1) to be installed is used for replacing the replacement pipe (4), the two end covers (6) are close to each other and abut against the corresponding ends of the outer sleeve (2) through the tensioning mechanism (7), and the flexible fireproof packing ring (3) is pressed to expand so as to be in close contact with the outer wall of the pipeline (1) to be installed; during vertical installation, the fixing hoop (5) is tightly held and fixed on the outer wall of the outer sleeve (2) and hung on the upper side of the floor slab (14), and the end cover (6) below shields the hole (15) and props against the lower side of the floor slab (14).
2. The fire-proof blocking structure of the wall-through pipeline is characterized in that the end cover (6), the wing ring (8) and the flexible fire-proof packing ring (3) are all circular ring structures which are coaxially arranged with the outer sleeve (2), and the inner diameters of the circular ring structures are equal to the outer diameter of the substitute pipe (4); the outer diameter of the flexible fireproof packing ring (3) and the outer diameter of the wing ring (8) are both equal to the inner diameter of the outer sleeve (2); when the horizontal installation is carried out, the outer diameters of the two end covers (6) are larger than the inner diameter of the outer sleeve (2) and smaller than the outer diameter of the outer sleeve (2); when the vertical installation is carried out, the outer diameter of the upper end cover (6) is larger than the inner diameter of the outer sleeve (2) and smaller than the outer diameter of the outer sleeve (2), and the outer diameter of the lower end cover (6) is larger than the outer diameter of the outer sleeve (2) and larger than the diameter of the hole (15).
3. The fireproof blocking structure of a through-wall pipeline according to claim 1, characterized in that the tensioning mechanism (7) comprises a tensioning tube (10) and two tensioning bolts (11) which are connected with the two ends of the tensioning tube in a threaded manner, and the tensioning tube (10) and the tensioning bolts (11) are both parallel to the outer sleeve (2); the tensioning pipe (10) is positioned between the outer sleeve (2) and the replacement pipe (4) and between the two wing rings (8), and two ends of the tensioning pipe are provided with internal threads matched with the tensioning bolts (11); the inner end of a screw rod of the tension bolt (11) sequentially penetrates through the end cover (6), the flexible fireproof packing ring (3) and the wing ring (8) at the same end and then is connected with the internal thread at the corresponding end, and the head of the tension bolt abuts against the outer side of the end cover (6) at the corresponding end; the outer side of one end cover (6) is provided with a limiting groove (16) for embedding the head of the tension bolt (11) and preventing the tension bolt (11) from rotating, and through holes (9) for the tension bolt (11) to pass through are formed in the end cover (6), the flexible fireproof packing ring (3) and the wing ring (8).
4. The fireproof plugging structure of a through-wall pipeline according to claim 1, characterized in that the number of the tensioning mechanisms (7) is two, and the two tensioning mechanisms (7) are symmetrically arranged on the axis of the outer sleeve (2).
5. The fire-proof blocking structure of the wall-through pipeline is characterized in that one end or two ends of the replacement pipe (4) are provided with a butt joint mechanism matched with the pipeline (1) to be installed, the butt joint mechanism comprises a thin-wall end (12) at the end part of the replacement pipe (4) and a retaining ring (13) between the end part of the replacement pipe (4) and the thin-wall end (12), the retaining ring (13) is coaxially arranged at the end part of the inner wall of the replacement pipe (4), and the inner diameter of the retaining ring is smaller than the outer diameter of the pipeline (1) to be installed; the thin-wall end (12) and the replacement pipe (4) are coaxially arranged, the outer diameter of the thin-wall end is equal to that of the replacement pipe (4), and the inner diameter of the thin-wall end is larger than that of the replacement pipe (4) and larger than that of the pipeline (1) to be installed.
6. The fire blocking structure of a through-wall conduit according to claim 1, characterized in that the length of the replacement pipe (4) is greater than the length of the outer jacket pipe (2), which is a rigid plastic pipe, the outer wall of which is coated with a release agent or lubricant.
7. The fireproof blocking structure of a through-wall pipeline according to claim 1, wherein the fixing hoop (5) comprises two semicircular hoops which are oppositely arranged, corresponding ends of the two semicircular hoops are fixed through fixing bolts, the inner diameter of each semicircular hoop is equal to the outer diameter of the outer sleeve (2), and the distance between the two ends of each semicircular hoop is larger than the diameter of the hole (15).
8. A fire blocking structure for a through-wall conduit according to claim 1, wherein the outer diameter of the replacement conduit (4) is 1-3mm larger than the outer diameter of the conduit (1) to be installed, and the outer end face of the flexible fire packing ring (3) protrudes outwardly by 2-5mm relative to the corresponding end of the outer sleeve (2).
9. A method of installing a fire blocking structure for a through-wall conduit according to any one of claims 1 to 8, wherein the method includes:
s101: connecting a pipeline (1) to be installed with a butt joint mechanism of a replacement pipe (4) and ejecting the replacement pipe (4) from the outer sleeve (2), wherein the pipeline (1) to be installed is coaxially arranged in a flexible fireproof packing ring (3);
s102: the fixing hoop (5) is tightly held and fixed on the outer wall of the outer sleeve (2) and is hung on the upper side of the floor slab (14), the lower part of the outer sleeve (2) is coaxially arranged in the hole (15), and the lower end of the outer sleeve is flush with the lower side of the floor slab (14);
s103: rotating the upper tensioning bolt (11) to enable the two end covers (6) to be close to each other and abut against the corresponding ends of the outer sleeve (2), abutting the lower end cover (6) against the lower side of the floor (14), and expanding the flexible fireproof packing ring (3) to be in tight contact with the outer wall of the pipeline (1) to be installed;
s104: and after the pipeline (1) is installed and is poured and fixed, the fixed hoop (5) is taken down.
10. The method for installing a fireproof sealing structure of a through-wall conduit according to claim 9, wherein in step S103, the plurality of tension bolts (11) are rotated in turn in the clockwise or counterclockwise direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210404751.4A CN114909525A (en) | 2022-04-18 | 2022-04-18 | Fireproof blocking structure of wall-penetrating pipeline and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210404751.4A CN114909525A (en) | 2022-04-18 | 2022-04-18 | Fireproof blocking structure of wall-penetrating pipeline and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114909525A true CN114909525A (en) | 2022-08-16 |
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ID=82764574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210404751.4A Withdrawn CN114909525A (en) | 2022-04-18 | 2022-04-18 | Fireproof blocking structure of wall-penetrating pipeline and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114909525A (en) |
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2022
- 2022-04-18 CN CN202210404751.4A patent/CN114909525A/en not_active Withdrawn
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Application publication date: 20220816 |
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| WW01 | Invention patent application withdrawn after publication |