CN111779896B - Prefabricated installation process of wall-through air pipe - Google Patents
Prefabricated installation process of wall-through air pipe Download PDFInfo
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- CN111779896B CN111779896B CN202010566497.9A CN202010566497A CN111779896B CN 111779896 B CN111779896 B CN 111779896B CN 202010566497 A CN202010566497 A CN 202010566497A CN 111779896 B CN111779896 B CN 111779896B
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- installation
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- air
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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
- F16L5/025—Sealing the pipe being movable
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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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
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a through-wall air duct prefabricating and mounting process, which comprises the following steps: s1, before construction, carrying out statistical calculation on the quantity of the project required to pass through the mounting hole of the wall; s2, compiling a sectional dimension diagram of the air pipe passing through the mounting hole by utilizing BIM deepening design, and deriving a prefabricating and processing mounting effect diagram; s3, manufacturing sleeves and air pipes with corresponding sizes according to the prefabricated installation effect diagram compiled by the BIM; s4, placing the installation sleeve into the wall installation hole, and filling the gap between the installation sleeve and the wall installation hole with heat preservation rock wool; and S5, inserting the air pipe into the installation sleeve to complete the installation of the wall penetrating part of the air pipe. The invention guides the actual construction by using the dimension model, determines the dimension structures of the reserved mounting hole, the mounting sleeve and the air pipe in advance, can avoid the adjustment caused by the damage of the finished wall body caused by hole drilling or the inaccurate dimension of the reserved hole of the wall body, and has obvious environmental protection benefit and social benefit.
Description
Technical Field
The invention is applied to the field of through-wall air pipe installation, and particularly relates to a through-wall air pipe prefabricating and installing process.
Background
Along with the continuous promotion of people to the office requirement of living, ventilation air conditioning engineering obtains great development in the building industry, and people also continuously promote to building fire prevention requirement. In order to meet the requirement of maintenance, the wall-through plate-through positions of pipelines, bridges and the like are required to be additionally provided with sleeves and plugged, but all functional systems of modern buildings are more and more complex, the construction operation of all the systems is frequent in a crossing mode, and the construction space is harsh. Traditional tuber pipe installation is followed the fan export and is started, and a lesson tuber pipe is installed forward, need chisel out a entrance to a cave in the wall body when meetting to have the wall body, and tuber pipe wall bushing, heat preservation construction and shutoff are filled and need be accomplished in the narrow and small space of wall hole department, and the relatively poor influence after the great and construction of the degree of difficulty is pleasing to the eye, and the efficiency of construction is low, and construction quality is difficult to control.
Disclosure of Invention
The invention aims to solve the technical problem of providing a wall-through air pipe prefabricating and installing process aiming at the defects of the prior art.
In order to solve the technical problem, the invention provides a through-wall air duct prefabrication and installation process, which comprises the following steps:
s1, before construction, carrying out statistical calculation on the quantity of the project required to pass through the mounting hole of the wall;
s2, compiling a sectional dimension diagram of the air pipe passing through the mounting hole by utilizing BIM deepening design, and deriving a prefabricating and processing mounting effect diagram;
s3, manufacturing sleeves and air pipes with corresponding sizes according to the prefabricated installation effect diagram compiled by the BIM;
s4, placing the installation sleeve into the wall installation hole, and filling the gap between the installation sleeve and the wall installation hole with heat preservation rock wool;
and S5, inserting the air pipe into the installation sleeve to complete the installation of the wall penetrating part of the air pipe.
As a better option, it is preferable that the size of the reserved installation hole on the fireproof and explosion-proof floor or wall in the step S1 is 700mm by 350 mm.
As a possible implementation manner, further, in step S4, the cross-sectional dimension of the mounting sleeve is 550mm by 250mm, and the mounting sleeve is provided with slide rails on the four inner side walls, and the outer side wall of the mounting sleeve is fixedly connected to the mounting airbag in a surrounding manner.
As a possible implementation manner, further, the step S4 specifically includes the following steps:
s41, placing the heat-preservation rock wool ring into the wall body installation opening, and then placing the installation sleeve into the heat-preservation rock wool ring, so that the heat-preservation rock wool ring is arranged between the installation sleeve and the wall body installation opening;
s42, blowing air to the installation air bag on the outer side wall of the installation sleeve by using an external air pump, enabling the installation air bag to bulge to push the heat preservation rock wool ring to extrude the side wall of the wall installation hole, stopping blowing air when the density of the heat preservation rock wool ring is 60-65kg/m3, completing installation work of the installation sleeve, and ensuring that the air pressure in the installation air bag is 1.1-1.3 atmospheric pressures at the moment.
As a possible implementation mode, further, the outer layer of the installation air bag is a thick rubber layer, ammonium phosphate salt dry powder is injected into the installation air bag in advance, and the gas injected from the outer gas inlet when the installation air bag is inflated by blowing is helium.
As a possible implementation manner, further, the cross-sectional dimension of the air duct is 450mm by 200mm, and the outer side wall of the air duct is provided with a sliding piece corresponding to the sliding rail on the mounting sleeve for positioning the air duct during the process of inserting the mounting sleeve.
As a preferred selection, it is preferred, the slider includes silica gel snubber block and slider, silica gel snubber block one end is fixed in the tuber pipe lateral wall, its other end and slider fixed connection, slider and slide rail emergence extrusion collision lead to the silica gel snubber block to take place to deform and reach the shock attenuation purpose when the tuber pipe takes place vibrations in the installation cover.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the construction method can build the size of the through-wall section installation hole by using the accurate positioning technology of the BIM, guide actual construction by using the size model, and determine the size structures of the reserved installation hole, the installation sleeve and the air pipe in advance, so that the adjustment caused by the damage of the finished wall body in the hole drilling or the inaccurate size of the reserved hole of the wall body can be avoided, and the construction method has obvious environmental protection benefit and social benefit.
2. According to the invention, by arranging the installation matching mode of the installation sleeve and the air pipe plug-in type sliding connection, the integral installation difficulty is reduced, the installation time is shortened, the defects of high construction difficulty, low installation efficiency, difficult guarantee of construction quality and the like caused by narrow working face can be avoided, and the rapid through-wall installation is realized.
3. According to the invention, the installation airbag is fixedly connected to the outer side wall of the installation sleeve in a surrounding manner, so that the purpose of installing the installation sleeve into the installation hole in the wall body in an extrusion manner by matching the installation sleeve with the heat-preservation rock wool ring through the installation airbag is achieved, the installation process is greatly simplified, the installation stability is ensured, and the fire resistance and the detachability of the wall-penetrating section of the air pipe are improved.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a front view of the present invention installed in a wall body;
FIG. 2 is a sectional view of the present invention installed in a wall body at an installation opening;
FIG. 3 is a schematic view of the inflated state of the mounting airbag of the present invention;
FIG. 4 is a schematic view of the present invention with the mounting bladder in an uninflated condition;
FIG. 5 is a sectional view of the structure of the airbag of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings.
As shown in fig. 1-5, the present invention provides a prefabricated installation process of a through-wall air duct, which comprises the following steps:
s1, before construction, carrying out statistical calculation on the project quantity of the project required to pass through the mounting hole 2 of the wall 1;
s2, utilizing BIM deepening design to weave a sectional dimension diagram of the installation sleeve 3 and the air pipe 4 which penetrate through the installation hole 2, and deriving a prefabrication processing installation effect diagram;
s3, manufacturing the installation sleeve 3 and the air pipe 4 with corresponding sizes by using a galvanized iron sheet according to a prefabricated installation effect picture compiled by BIM;
s4, placing the installation sleeve 3 into the installation hole 2 of the wall body 1, and filling the gap between the installation sleeve 3 and the installation hole 2 with heat preservation rock wool 5;
and S5, inserting the air duct 4 into the installation sleeve 3 to complete the installation of the wall penetrating part of the air duct 4.
As a possible embodiment, further, after S5 is completed, the gap between the installation casing 3 and the air duct 4 may be filled with heat-insulating rock wool as needed to further improve the heat insulation of the wall-penetrating portion.
As a possible implementation manner, further, the step S4 specifically includes the following steps:
s41, placing the heat-preservation rock wool ring 5 into the installation hole 2 of the wall body 1, and then placing the installation sleeve 3 into the heat-preservation rock wool ring 5, so that the heat-preservation rock wool ring 5 is arranged between the installation sleeve 3 and the installation hole 2;
s42, blowing air to the installation air bag 32 on the outer side wall of the installation sleeve 3 by using an external air pump, enabling the installation air bag 32 to bulge and push the heat preservation rock wool ring 5 to extrude the side wall of the installation opening 2, stopping blowing air when the density of the heat preservation rock wool ring 5 is in a range of 60-65kg/m3, completing installation work of the installation sleeve 3, and ensuring that the air pressure in the installation air bag 32 is 1.1-1.3 atmospheric pressures at the moment. The installation principle is that the installation air bag 32 is utilized to blow and swell so as to extrude the heat preservation rock wool ring 5 outside the installation air bag, so that the pressure between the side wall of the installation opening 2, the heat preservation rock wool ring 5 and the installation air bag 32 is increased, the static friction among the three is increased, the installation is completed, and the danger of falling caused by the fact that the installation sleeve 3 is separated from the installation sleeve due to the action of external force after the installation is prevented. When the density of the heat-preservation rock wool ring 5 is 60-65kg/m3, the heat-preservation rock wool ring 5 is subjected to proper pressure and is not easy to separate from the side wall of the installation hole 2 due to the action of external force, and meanwhile, the installation effect cannot be influenced due to plastic deformation caused by continuous extrusion of the installation air bag 32 in the long-term use process. When the density of the extruded heat-insulating rock wool ring 5 is less than 60kg/m3, the pressure applied on the heat-insulating rock wool ring 5 is insufficient, the static friction between the heat-insulating rock wool ring and the side wall of the installation hole 2 is insufficient, and the heat-insulating rock wool ring 5 and the side wall of the installation hole are easy to separate due to external force in long-term use, so that safety accidents occur; when the density of receiving extrusion back heat preservation rock wool circle 5 is greater than 65kg/m3, the pressure that heat preservation rock wool circle 5 received is too big, leads to it to take place plastic deformation easily, leads to its resilience to descend to reduce its effect of contradicting and being connected between it and the installation gasbag 32, after using for a long time easily because the ageing scheduling problem after the heat preservation rock wool circle 5 plastic deformation influences its installation effect and leads to the two separation to take place the incident.
Further, the size of the mounting hole 2 reserved in the wall 1 in step S1 is 700mm × 350 mm. In the step S4, the sectional dimension of the mounting sleeve 3 is 550mm × 250mm, the four inner side walls of the mounting sleeve 3 are provided with the slide rails 31, and the outer side wall of the mounting sleeve 3 is fixedly connected with the mounting airbag 32. The outer layer of the installation air bag 32 is a thick rubber layer, ammonium phosphate salt dry powder is injected into the installation air bag 32 in advance, and helium is injected from an outer side air inlet when the installation air bag 32 is inflated. The ammonium phosphate dry powder is injected into the thick rubber layer of the installation air bag 32 and helium is injected into the thick rubber layer, so that the installation air bag 32 with the structure has better fireproof performance, the thick rubber layer ensures the installation effect and the long-time durability of the thick rubber layer, the integral flame retardance of the device is far higher than that of the device adopting air, hydrogen and other gases by matching with the injected helium, the ammonium phosphate dry powder is further injected into the thick rubber layer, the ammonium phosphate dry powder is widely applied to the conventional dry powder fire extinguisher, the fire extinguishing principle is that the powder falls outside the surface of a combustible substance, chemical reaction occurs, and a glass-shaped covering layer is formed under the action of high temperature, so that oxygen is isolated, and the fire is extinguished by suffocation; when the wall-penetrating part of the device is burnt by open fire, the thick rubber layer of the installation air bag 32 can be burnt through to generate holes, the air pressure in the installation air bag 32 is 1.1-1.3 atmospheric pressures, helium in the installation air bag can be sprayed out from the holes when the holes are generated on the surface, and the helium sprayed out rapidly is mixed with ammonium phosphate dry powder to push the ammonium phosphate dry powder to be sprayed out, so that the surface of combustible materials sprayed to the periphery of the open fire can be externally sprayed with the ammonium phosphate dry powder to achieve the similar fire extinguishing effect of a dry powder fire extinguisher, and the fire preventing effect of the wall-penetrating section of the air pipe 4 is greatly improved. The cross-sectional dimension of the air duct 4 is 450mm 200mm, and the outer side wall of the air duct 4 is provided with a sliding part 41 for positioning the air duct 4 in the process of inserting the installation sleeve 3 corresponding to the sliding rail 31 on the installation sleeve 3. Thereby align slide rail 31 on the installation sleeve 3 with the slider 41 of tuber pipe 4 and insert the installation of accomplishing tuber pipe 4 and inserting installation sleeve 3 during the installation for the installation of tuber pipe 4 is quick simple and convenient and the effect is far better than current trompil and is filled the formula installation, and the inserted mounting means of slidingtype is still convenient for it and is installing its regulation and the dismantlement work of passing the wall section when with the pipeline simultaneously. Slider 41 includes silica gel snubber block 411 and slider 412, silica gel snubber block 411 one end is fixed in the 4 lateral walls of tuber pipe, its other end and slider 31 fixed connection, slider 412 and slide rail 31 take place extrusion collision when tuber pipe 4 takes place vibrations in the installation sleeve 3 and lead to silica gel snubber block 411 to take place deformation and reach the shock attenuation purpose. The setting of silica gel snubber block 411 has reached absorbing purpose tuber pipe 4, and slider 412 takes place extrusion collision with slide rail 31 and leads to silica gel snubber block 411 to take place to deform when tuber pipe 4 receives external force to take place to shake or vibrations and reach the shock attenuation purpose. Thereby through the size of predetermined installation entrance to a cave 2 to installation sleeve 3 and tuber pipe 4 and each structure on it prefabricate the construction in spacious processing place and reduced the construction degree of difficulty, be favorable to controlling construction quality, convenient construction can carry out prefabrication construction in batches according to the engineering condition, improves the efficiency of construction.
The foregoing is directed to embodiments of the present invention, and equivalents, modifications, substitutions and variations such as will occur to those skilled in the art, which fall within the scope and spirit of the appended claims.
Claims (5)
1. The prefabricated installation process of the wall-through air pipe is characterized by comprising the following steps of: which comprises the following steps:
s1, before construction, carrying out statistical calculation on the quantity of the project required to pass through the mounting hole of the wall;
s2, compiling a sectional dimension diagram of the air pipe passing through the mounting hole by utilizing BIM deepening design, and deriving a prefabricating and processing mounting effect diagram;
s3, manufacturing sleeves and air pipes with corresponding sizes according to the prefabricated installation effect diagram compiled by the BIM;
s4, placing the installation sleeve into the installation hole, and filling the gap between the installation sleeve and the installation hole with heat preservation rock wool;
s5, inserting the air pipe into the installation sleeve to complete the installation of the wall-penetrating part of the air pipe;
in the step S4, the sectional dimension of the installation sleeve is 550mm × 250mm, the four inner side walls of the installation sleeve are provided with slide rails, and the outer side wall of the installation sleeve is fixedly connected with an installation airbag in a surrounding manner;
wherein, step S4 specifically includes the following steps:
s41, placing the heat-preservation rock wool ring into the wall body installation opening, and then placing the installation sleeve into the heat-preservation rock wool ring, so that the heat-preservation rock wool ring is arranged between the installation sleeve and the wall body installation opening;
s42, blowing air to the installation air bag on the outer side wall of the installation sleeve by using an external air pump, enabling the installation air bag to bulge to push the heat preservation rock wool ring to extrude the side wall of the wall installation hole, stopping blowing air when the density of the heat preservation rock wool ring is 60-65kg/m3, completing installation work of the installation sleeve, and ensuring that the air pressure in the installation air bag is 1.1-1.3 atmospheric pressures at the moment.
2. The process for prefabricating and installing a through-wall air duct according to claim 1, wherein: the size of the mounting hole on the wall body in the step S1 is 700mm by 350 mm.
3. The process for prefabricating and installing a through-wall air duct according to claim 2, wherein: the outer layer of the installation air bag is a thick rubber layer, ammonium phosphate dry powder is injected into the installation air bag in advance, and helium is injected from an air inlet on the outer side of the installation air bag when the installation air bag is blown and expanded.
4. The process for prefabricating and installing a through-wall air duct according to claim 1, wherein: the cross-sectional dimension of tuber pipe is 450mm 200mm, and the slide rail that the tuber pipe lateral wall corresponds on the installation sleeve pipe is provided with and is used for inserting the installation sleeve pipe in-process and carry out the slider of location to the tuber pipe.
5. The process for prefabricating and installing a through-wall air duct according to claim 4, wherein: the slider includes silica gel snubber block and slider, silica gel snubber block one end is fixed in the tuber pipe lateral wall, its other end and slider fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010566497.9A CN111779896B (en) | 2020-06-19 | 2020-06-19 | Prefabricated installation process of wall-through air pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010566497.9A CN111779896B (en) | 2020-06-19 | 2020-06-19 | Prefabricated installation process of wall-through air pipe |
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| Publication Number | Publication Date |
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| CN111779896A CN111779896A (en) | 2020-10-16 |
| CN111779896B true CN111779896B (en) | 2021-08-27 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737587A (en) * | 2009-12-10 | 2010-06-16 | 金发科技股份有限公司 | Hole repairing construction machine for polyethylene anti corrosive coating of metallic tube and construction method thereof |
| CN204828968U (en) * | 2015-06-24 | 2015-12-02 | 中国建筑第八工程局有限公司 | Fire resistive construction of light steel joist gypsum -lath partition wall is worn to heat preservation tuber pipe |
| CN105240644A (en) * | 2015-07-31 | 2016-01-13 | 厦门市安越非开挖工程技术有限公司 | Pipeline crack repairing device and method |
| CN207621509U (en) * | 2017-09-04 | 2018-07-17 | 天津市盛泰建筑工程有限公司 | A kind of exterior wall sleeve structure |
| CN109614723A (en) * | 2018-12-14 | 2019-04-12 | 中建二局第建筑工程有限公司 | A kind of comprehensive construction method based on BIM technology |
| CN209385816U (en) * | 2018-12-25 | 2019-09-13 | 陕西鼎固建筑工程有限公司 | A kind of wall pipe construction |
| CN110440429A (en) * | 2019-07-17 | 2019-11-12 | 中铁十二局集团有限公司 | Subway arch top ventilation shaft assembling constructing method |
-
2020
- 2020-06-19 CN CN202010566497.9A patent/CN111779896B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737587A (en) * | 2009-12-10 | 2010-06-16 | 金发科技股份有限公司 | Hole repairing construction machine for polyethylene anti corrosive coating of metallic tube and construction method thereof |
| CN204828968U (en) * | 2015-06-24 | 2015-12-02 | 中国建筑第八工程局有限公司 | Fire resistive construction of light steel joist gypsum -lath partition wall is worn to heat preservation tuber pipe |
| CN105240644A (en) * | 2015-07-31 | 2016-01-13 | 厦门市安越非开挖工程技术有限公司 | Pipeline crack repairing device and method |
| CN207621509U (en) * | 2017-09-04 | 2018-07-17 | 天津市盛泰建筑工程有限公司 | A kind of exterior wall sleeve structure |
| CN109614723A (en) * | 2018-12-14 | 2019-04-12 | 中建二局第建筑工程有限公司 | A kind of comprehensive construction method based on BIM technology |
| CN209385816U (en) * | 2018-12-25 | 2019-09-13 | 陕西鼎固建筑工程有限公司 | A kind of wall pipe construction |
| CN110440429A (en) * | 2019-07-17 | 2019-11-12 | 中铁十二局集团有限公司 | Subway arch top ventilation shaft assembling constructing method |
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| CN111779896A (en) | 2020-10-16 |
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