CN119642009A - Flexible composite air pipe and processing method - Google Patents
Flexible composite air pipe and processing method Download PDFInfo
- Publication number
- CN119642009A CN119642009A CN202411881416.9A CN202411881416A CN119642009A CN 119642009 A CN119642009 A CN 119642009A CN 202411881416 A CN202411881416 A CN 202411881416A CN 119642009 A CN119642009 A CN 119642009A
- Authority
- CN
- China
- Prior art keywords
- air duct
- zipper
- closing
- extension
- sealant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The application relates to a flexible composite air duct and a processing method thereof, comprising an annular air duct body, an air duct closing sealing adhesive layer, an air duct closing sealing adhesive tape, an extension sealing adhesive tape and an extension sealing adhesive layer, wherein the air duct body is provided with an air duct closing zipper in the length direction, the periphery of the end part connected with the two air duct bodies is provided with an extension zipper, the air duct closing sealing adhesive layer is formed by a surface dry of sealing adhesive filled at least in a first gap, the first gap is formed between teeth of the air duct closing zipper, the air duct closing sealing adhesive tape is adhered to the air duct body and covers the air duct closing zipper, the extension sealing adhesive tape is adhered to the end parts of two adjacent air duct bodies and covers the extension zipper, the extension sealing adhesive layer is formed by a surface dry of sealing adhesive filled at least in a second gap, and the second gap is formed between the free end of the extension sealing adhesive tape and the outer surface of the air duct body. The application can solve the problem of low tightness and durability in the related technology.
Description
Technical Field
The application relates to the technical field of flexible air pipes, in particular to a flexible composite air pipe and a processing method thereof.
Background
The existing flexible composite air duct system is basically assembled and constructed by adopting factory production and engineering site connection through a zipper. As a central air conditioning system supply/return air duct, the tightness of the air duct will greatly affect the supply effect and energy consumption of the central air conditioning system.
In order to reduce the air leakage of the flexible composite air pipe system, the problems are mainly solved from two aspects of an air pipe body and field assembly. The method specifically comprises the following steps:
the air leakage point of the air pipe body is mainly a sewing needle hole, and the air leakage point is generally sealed in a factory by a sealing glue point coating mode.
The on-site assembly air leakage points are mainly zipper connection gaps and holes at the intersections of the tube closing zippers and the lengthening zippers, and the main treatment mode at present is that double zippers are arranged at the zipper connection positions (comprising the tube closing zippers and the lengthening zippers), namely zippers are respectively arranged on the inner wall and the outer wall of the air duct, and material extrusion is formed at the edges of the air duct after the zippers are closed by controlling the distance between the zippers and the edges of the material, so that a sealing effect is achieved. Meanwhile, a sealing adhesive tape is arranged at the joint of the zippers (comprising a tube-closing zipper and a lengthening zipper) for sealing.
Although the above solution can solve the problem of air leakage to a certain extent, there are still some drawbacks, such as low tightness and durability, and further improvement is required, specifically, the following:
1. The double-zipper connecting scheme has the advantages of high production and construction difficulty and low production and construction efficiency.
2. The double zippers mainly realize extrusion sealing by utilizing the compression rebound resilience of the materials, the rebound resilience of the rubber and plastic heat insulation materials is weakened along with the extension of extrusion time, and after a period of use, the tightness can be deteriorated.
3. The sealing adhesive tape is generally non-setting adhesive, and when the tube closing zipper is subjected to long-term continuous impact of high-pressure airflow in the tube, the adhesive tape can be separated from the zipper, so that the sealing effect cannot be achieved.
4. The loopholes at the intersections of the tube closing zipper and the lengthening zipper are large, and extrusion sealing cannot be realized.
Disclosure of Invention
The embodiment of the application provides a flexible composite air pipe and a processing method thereof, which are used for solving the problem of low tightness and durability in the related technology.
In a first aspect, a flexible composite air duct is provided, comprising:
The air duct comprises a plurality of annular air duct bodies, wherein a tube closing zipper is arranged in the length direction of each air duct body, and a lengthening zipper is arranged in the circumferential direction of the end part connected with each air duct body;
The tube closing sealing adhesive layer is formed by surface drying of sealing adhesive filled at least in a first gap, and the first gap is formed between the teeth of the tube closing zipper;
A closing tube sealing adhesive tape which is adhered to the air pipe body and is adhered to cover the closing tube zipper;
an extension sealing adhesive tape which is adhered to the end parts of two adjacent air pipe bodies and is adhered to cover the extension zippers;
the extension sealing adhesive layer is formed by surface drying of sealing adhesive filled at least in a second gap, and the second gap is formed between the free end of the extension sealing adhesive tape and the outer surface of the air pipe body.
In some embodiments, a third gap is formed at the intersection of the tube closing zipper and the lengthening zipper;
The length of the extension sealing adhesive tape is larger than that of the extension zipper, and an overlapping area is formed between two ends of the extension sealing adhesive tape after the extension sealing adhesive tape is wound on the air pipe body for at least one circle;
the overlapping area covers the third gap.
In some embodiments, the tube closing sealing tape and the lengthening sealing tape are made of the same or different materials.
In some embodiments, the tube closing sealing tape is an airtight tape, a self-adhesive tape or a butyl tape;
And/or the lengthening sealing adhesive tape adopts an airtight adhesive tape, a self-adhesive tape or a butyl adhesive tape.
In some embodiments, the thickness of the colloid on the tube closing sealing adhesive tape is more than or equal to 0.8mm;
and/or the thickness of the colloid on the lengthening sealing adhesive tape is more than or equal to 0.8mm.
In some embodiments, the length of the tube-closing sealing tape is the same as the length of the tube-closing zipper.
In some embodiments, the bonding strength of the sealant is greater than or equal to 1MPa;
and/or the sealant is quick-drying adhesive, the surface drying time at room temperature is less than or equal to 10 minutes, and the curing time is less than or equal to 24 hours when the adhesive coating thickness is less than or equal to 5 mm.
In some embodiments, the surface of the sealant is an elastomer after being dried and solidified, the elongation of the elastomer is more than or equal to 100 percent, the tensile strength is more than or equal to 1Mpa, and the tearing strength is more than or equal to 3KN/m;
and/or the temperature resistant range of the sealant is-30 ℃ to 60 ℃.
In some embodiments, the outside in the length direction of the air duct body is provided with the tube closing zipper;
the extension zipper is arranged on the outer side of the circumferential direction of the end part connected with the two air pipe bodies.
In a second aspect, there is provided a method for manufacturing a flexible composite air duct as defined in any one of the above, comprising the steps of:
after a tube closing zipper on the length direction of the tube closing body is pulled, coating sealant to fill a first gap, and after the surface of the sealant is dried to form a tube closing sealant layer, adhering a tube closing sealant tape to the tube closing body to adhere and cover the tube closing zipper;
And after the extension zippers on the circumferential directions of the end parts connected with the two air pipe bodies are closed, adhering extension sealing adhesive tapes to the end parts of the two adjacent air pipe bodies so as to be adhered and covered on the extension zippers, coating sealing glue to fill a second gap, and drying the surface of the sealing glue to form an extension sealing glue layer.
The technical scheme provided by the application has the beneficial effects that:
The embodiment of the application provides a flexible composite air pipe and a processing method, and the folding pipe zipper adopts the coating of sealant to form a folding pipe sealant layer and the pasting of the folding pipe sealant tape, so that continuous impact of high-pressure air flow in the pipe to the folding pipe sealant tape through a first gap between the teeth of the folding pipe zipper is effectively avoided, the folding pipe sealant tape is prevented from being separated from the folding pipe zipper, and the lasting sealing is realized.
After the extension zipper is pulled and closed, the extension sealing adhesive tape is attached to the extension zipper, then the extension sealing adhesive tape is arranged along the perimeter direction of the air pipe body, the air pipe body is expanded towards the periphery under the action of the pressure in the air pipe after ventilation, so that the extension sealing adhesive tape is tightly attached to the air pipe body, and even if the extension sealing adhesive tape is subjected to the continuous impact action of high-pressure air flow in the air pipe body, the extension sealing adhesive tape is difficult to separate from the extension zipper even. And then the sealant is coated at the joint between the free end of the extension sealing tape and the outer surface of the air pipe body, so that the free end and the outer surface of the air pipe body are bonded integrally, the sealing of the extension sealing tape is reinforced, and meanwhile, the high-pressure air flow in the air pipe body is effectively prevented from flowing out through a third gap formed at the intersection of the closed pipe zipper and the extension zipper, so that the durable sealing is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of the present application before a duct body is combined;
fig. 2 is a schematic view of the duct body according to the embodiment of the present application after the duct is closed;
fig. 3 is a schematic view of an embodiment of the present application after the duct body is lengthened;
fig. 4 is a schematic diagram of a flexible composite air duct according to an embodiment of the present application.
The air duct comprises an air duct body, a tube closing zipper, a length extending zipper, a tube closing sealing adhesive layer, a tube closing sealing adhesive tape, a length extending sealing adhesive layer, a length extending sealing adhesive tape and a third gap.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1,2, 3 and 4, an embodiment of the present application provides a flexible composite air duct, which includes a plurality of annular air duct bodies 1, a tube closing sealing adhesive layer 4, a tube closing sealing adhesive tape 5, an extension sealing adhesive layer 6 and an extension sealing adhesive tape 7.
The air duct body 1 is provided with a tube closing zipper 2 in the length direction, the circumference of the end part connected with the two air duct bodies 1 is provided with an extension zipper 3, and when the tube closing zipper 2 in the length direction of the annular air duct body 1 is opened, the air duct body 1 is of a sheet structure. When the extension zipper 3 of the circumference of the end part where the two air pipe bodies 1 are connected is pulled together, the plurality of air pipe bodies 1 form a flexible composite air pipe. Alternatively, the cross section of the annular air duct body 1 is rectangular, circular, elliptical or semicircular.
When the tube closing zipper 2 is pulled, a first gap is formed between the teeth of the tube closing zipper 2, a tube closing sealing adhesive layer 4 is arranged in the first gap, the tube closing sealing adhesive layer 4 is formed by surface drying of sealing adhesive filled on at least the first gap, a tube closing sealing adhesive tape 5 is adhered to the air pipe body 1 and is adhered to cover the tube closing zipper 2, after the tube closing zipper 2 is pulled and closed, the surface of the tube closing zipper 2 is coated and sealed by sealing adhesive, the first gap between the teeth of the tube closing zipper 2 is sealed by the sealing adhesive, the tube closing sealing adhesive layer 4 is formed after the surface drying of the sealing adhesive, and the tube closing sealing adhesive tape 5 is adhered to the tube closing zipper 2 for sealing and reinforcing. The joint pipe zipper 2 adopts a construction mode that the joint pipe sealant layer 4 is coated with sealant firstly and then the joint pipe sealant tape 5 is attached, so that continuous impact of high-pressure air flow in the pipe through the joint pipe sealant tape 5 through a first gap between the teeth of the joint pipe zipper 2 is effectively avoided, the joint pipe sealant tape 5 is prevented from being separated from the joint pipe zipper 2, and durable sealing is realized.
The extension sealing adhesive tape 7 is adhered to the end parts of the two adjacent air duct bodies 1, and is adhered to cover the extension zipper 3, and the long edge of the extension sealing adhesive tape 7 is used as a free end, possibly not adhered to the outer surface of the air duct body 1, so that a gap, namely a second gap, appears, and therefore, an extension sealing adhesive layer 6 is arranged, and the extension sealing adhesive layer 6 is formed by the surface of the sealing adhesive at least filled in the second gap.
After the extension zipper 3 is pulled and closed, the extension sealing adhesive tape 7 is attached to the extension zipper 3, then the extension sealing adhesive tape 7 is arranged along the circumferential direction of the air pipe body 1, the air pipe body 1 is expanded to the periphery under the action of the pressure in the pipe after ventilation, so that the extension sealing adhesive tape 7 is attached to the air pipe body 1 more tightly, and even if the extension sealing adhesive tape 7 is subjected to the continuous impact action of high-pressure air flow in the air pipe body 1, the extension sealing adhesive tape 7 is difficult to be separated from the extension zipper 3 even.
And then the sealant is coated at the joint between the free end of the lengthening sealing adhesive tape 7 and the outer surface of the air pipe body 1, so that the free end and the outer surface of the air pipe body are bonded integrally, the sealing of the air pipe body 1 is reinforced, and meanwhile, the high-pressure air flow in the air pipe body 1 is effectively prevented from flowing out through a third gap 8 formed at the intersection of the pipe closing zipper 2 and the lengthening zipper 3, and the durable sealing is realized.
Since a durable seal can be mentioned, in the present application, there is no need to provide a double-layer slide fastener, that is, the closing slide fastener 2 is provided only on the outer side in the longitudinal direction of the duct body 1, and the lengthening slide fastener 3 is provided only on the outer side in the circumferential direction of the end portion where the two duct bodies 1 are connected. Thus, the production and construction difficulty of the flexible composite air pipe sealing process can be reduced.
Referring to fig. 3, a third gap 8 is formed at the intersection of the closing zipper 2 and the lengthening zipper 3, in order to effectively solve the problem of air leakage at the intersection of the closing zipper and the lengthening zipper of the flexible composite air duct, in some preferred embodiments, the length of the lengthening sealing tape 7 is greater than the length of the lengthening zipper 3, the lengthening sealing tape 7 forms an overlapping area between two ends of the lengthening sealing tape 7 after being wound on the air duct body 1 for at least one week, and the overlapping area covers the third gap 8.
When in winding, the overlapping area just corresponds to the leak at the intersection of the tube closing zipper and the lengthening zipper, and compared with extrusion sealing, the application can effectively seal and prevent air leakage.
In the present application, the tube closing sealing tape 5 and the lengthening sealing tape 7 are made of the same or different materials.
The material of the tube closing sealing tape 5 is selected from various materials, for example, the tube closing sealing tape 5 is an airtight tape, a self-adhesive tape or a butyl tape.
Likewise, the material of the extension sealing tape 7 may be selected from various materials, for example, a gas-impermeable tape, a pressure-sensitive adhesive or a butyl tape is used for the extension sealing tape 7.
The use of the self-adhesive can be preset at the edge of the air pipe body 1 in advance, so that the site construction is convenient.
The thickness of the colloid on the closing pipe sealing adhesive tape 5 is more than or equal to 0.8mm, so that the pits and gaps on the surface of the connecting part of the zipper can be filled and plugged, and the sealing is realized.
The thickness of the colloid on the lengthening sealing adhesive tape 7 is more than or equal to 0.8mm, so that the pits and gaps on the surface of the connecting part of the zipper can be filled and plugged, and sealing is realized.
The length of the closing pipe sealing adhesive tape 5 is the same as that of the closing pipe zipper 2, so that air leakage caused by ineffective sealing of the position of the closing pipe zipper 2 due to too short is avoided, the phenomenon that the redundant part of the closing pipe sealing adhesive tape 5 is not well pasted due to too long is avoided, the construction difficulty is increased, and meanwhile, waste is avoided.
The sealing glue is fluid, and can effectively fill the sprocket connecting gap of the tube closing zipper during glue coating construction, so that sealing is realized.
The bonding strength of the sealant is more than or equal to 1MPa (GB/T11211-2009), and the free end of the extension sealing adhesive tape 7 can be bonded with the seam of the air duct body 1 into a whole effectively, so that sealing is realized.
The sealant is quick-drying, the surface drying time is less than or equal to 10 minutes at room temperature, the curing time is less than or equal to 24 hours when the gluing thickness is less than or equal to 5mm, and the field construction requirement is met.
The surface of the sealant is an elastomer after being dried and solidified, the elongation of the elastomer is more than or equal to 100 percent (GB/T528-2009), the tensile strength is more than or equal to 1Mpa (GB/T528-2009), the tearing strength is more than or equal to 3KN/m (GB/T528-2009), when the air conditioner system is started and shut down, the flexible composite air pipe is subjected to ventilation deformation, the sealant can effectively offset the influence caused by the deformation of the air pipe, and the sealing performance is not weakened.
The temperature resistant range of the sealant is-30 ℃ to 60 ℃, and the requirements of air supply and environmental temperature of a central air conditioner ventilating duct can be met.
The embodiment of the application also provides a processing method of the flexible composite air pipe, which comprises the following steps:
101, after the tube closing zipper 2 in the length direction of the tube closing body 1 is pulled, coating sealant to fill the first gap, and after the sealant surface dries to form the tube closing sealant layer 4, adhering the tube closing sealant tape 5 on the tube closing body 1 to adhere and cover the tube closing zipper 2.
102, After the extension zippers 3 on the circumferential directions of the connected end parts of the two air pipe bodies 1 are pulled and closed, the extension sealing adhesive tapes 7 are adhered to the end parts of the two adjacent air pipe bodies 1 to be adhered and cover the extension zippers 3, and then the second gaps are filled with sealant, and the sealant is dried to form the extension sealant layer 6.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intervening medium, or may be in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411881416.9A CN119642009A (en) | 2024-12-19 | 2024-12-19 | Flexible composite air pipe and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411881416.9A CN119642009A (en) | 2024-12-19 | 2024-12-19 | Flexible composite air pipe and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119642009A true CN119642009A (en) | 2025-03-18 |
Family
ID=94958344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411881416.9A Pending CN119642009A (en) | 2024-12-19 | 2024-12-19 | Flexible composite air pipe and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119642009A (en) |
-
2024
- 2024-12-19 CN CN202411881416.9A patent/CN119642009A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2014522327A5 (en) | ||
| CN119642009A (en) | Flexible composite air pipe and processing method | |
| CN104453106A (en) | Composite flexible water floating band and manufacturing method thereof | |
| CN207244676U (en) | Rubber fastening band bell and spigot joint | |
| US20150064384A1 (en) | Corrugated metallic foil tape | |
| CN214064077U (en) | Air leakage prevention flexible air pipe system | |
| CN206428834U (en) | New back-adhering waterstop | |
| CN112431972A (en) | Air leakage prevention flexible air pipe system and machining method thereof | |
| CN204785110U (en) | Integral type wall pipe is said and is used waterproof prefab | |
| CN209603303U (en) | Rubber hollow airtight strip with built-in steel spring | |
| CN218378078U (en) | Air pipe structure adopting gas composite double-layer heat insulation layer | |
| CN212073166U (en) | Polymer pre-paved anti-sticking waterproof coiled material | |
| CN212319014U (en) | Rock wool strip composite board ventilation air pipe with elastic polymer mortar as reinforcing protective layer | |
| CN222349967U (en) | Waterproof heat preservation device | |
| CN114892829A (en) | Self-adhesive root puncture-resistant waterproofing membrane and construction method thereof | |
| KR200434864Y1 (en) | Self-adhesive composite waterproof sheet | |
| CN111810724A (en) | Rock wool belt composite board ventilation duct with elastic polymer mortar as reinforced protective layer | |
| CN216197705U (en) | Back pressure adhesive tape with rain leakage prevention sealing structure | |
| CN221278855U (en) | Rubber and plastic heat preservation pipe convenient to install | |
| CN209100846U (en) | A kind of air hose flexible connection structure of sound-absorption vibration-reduction | |
| CN208295336U (en) | A kind of plastic film capicitor gluing connection composite construction for prestressed concrete | |
| CN223181744U (en) | A high-seal wire protection sleeve | |
| CN206529975U (en) | A reactive bonding waterproof membrane | |
| CN204252300U (en) | A kind of structure of thermal insulation layer of wall | |
| CN216643320U (en) | Through-wall pipeline structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |