CN111706726A - Composite air pipe with functions of back air exhaust and smoke exhaust - Google Patents
Composite air pipe with functions of back air exhaust and smoke exhaust Download PDFInfo
- Publication number
- CN111706726A CN111706726A CN202010634218.8A CN202010634218A CN111706726A CN 111706726 A CN111706726 A CN 111706726A CN 202010634218 A CN202010634218 A CN 202010634218A CN 111706726 A CN111706726 A CN 111706726A
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- CN
- China
- Prior art keywords
- air pipe
- exhaust
- ceramic fiber
- air duct
- connecting piece
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- 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.)
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Classifications
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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
- F16L9/00—Rigid pipes
- F16L9/22—Pipes composed of a plurality of segments
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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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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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
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
Abstract
The invention discloses a composite air pipe with functions of back air exhaust and smoke exhaust, which comprises an air pipe lining, a connecting piece, a high-temperature gasket, a ceramic fiber plate and an air pipe outer lining, wherein the ceramic fiber plate is arranged outside the air pipe lining, one end of the connecting piece is connected with the inner layer of the air pipe lining, the other end of the connecting piece is arranged between the high-temperature gasket and the ceramic fiber plate, and the air pipe outer lining is arranged outside the ceramic fiber plate and the connecting piece. The invention can be used for air return and exhaust, can be used for smoke exhaust, can prevent the direct connection between the air pipe outer lining and the air pipe inner lining by adding the high-temperature gasket and improving the staggered fastening of the connecting piece, plays a role in heat insulation, prevents the cold (low temperature) in the ventilation pipeline from being transferred to the air pipe outer lining through the connecting piece, and prevents the generation of condensed water.
Description
Technical Field
The invention belongs to the technical field of air pipelines, and particularly relates to a composite air pipe for back air exhaust and smoke exhaust.
Background
The air pipe is an air pipeline, the wall thickness of a common composite air pipe is 50mm, and air pipes made of galvanized steel sheets with the thickness of 0.6mm are used as linings from the inner layer to the outer layer; coating three layers of 10mm aluminum silicate fibers (the density is 320 kg/square meter) outside the lining liner; then coating 2 layers of aluminum silicate fibers (the density is 140kg per square meter) outside the 10mm aluminum silicate fibers; 4, the outermost layer was a 0.8mm thick galvanized steel sheet. The sections of the inner layer galvanized steel sheet and the outer layer galvanized steel sheet of the composite air duct are connected by a metal C-shaped clamping groove with the thickness of 1.0 mm. The metal C-shaped clamping grooves are used for clamping galvanized steel plates on the inner layer and the outer layer of the air pipe respectively and are fastened by rivets.
Therefore, the inner layer galvanized steel plate of the composite air pipe is directly connected with the outer layer galvanized steel plate through the metal C-shaped clamping groove in the cross section, and cold energy (low temperature) in the pipeline can be transmitted to the outermost layer galvanized steel plate through the metal C-shaped clamping groove, so that the temperature of the outer layer galvanized steel plate is lower in the area near the metal C-shaped clamping groove, and condensate water can be generated under a certain humidity condition.
Therefore, from the above, it can be seen that the existing air duct has certain disadvantages and problems.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention aims to provide a composite air duct for back-air exhaust and smoke exhaust.
According to one aspect of the invention, the composite air pipe with the functions of back air exhaust and smoke exhaust comprises an air pipe lining, a connecting piece, a high-temperature gasket, a ceramic fiber plate and an air pipe outer lining, wherein the ceramic fiber plate is arranged outside the air pipe lining, one end of the connecting piece is connected with the inner layer of the air pipe lining, the other end of the connecting piece is arranged between the high-temperature gasket and the ceramic fiber plate, and the air pipe outer lining is arranged outside the ceramic fiber plate and the connecting piece.
The invention can be used for air return and exhaust, can be used for smoke exhaust, can prevent the direct connection between the air pipe outer lining and the air pipe inner lining by adding the high-temperature gasket and improving the staggered fastening of the connecting piece, plays a role in heat insulation, prevents the cold (low temperature) in the ventilation pipeline from being transferred to the air pipe outer lining through the connecting piece, and prevents the generation of condensed water.
In some embodiments, the connecting piece is a C-shaped clamping groove, the lower side surface of the connecting piece is tightly attached to the inner layer of the air pipe lining, the right side surface of the connecting piece is tightly attached to the right side of the air pipe lining and the right side of the ceramic fiber board, and the upper side surface of the connecting piece is tightly attached between the high-temperature gasket and the ceramic fiber board. Therefore, the lower side of the C-shaped clamping groove can sleeve the inner lining of the air pipe, the upper side surface of the C-shaped clamping groove can be tightly attached between the high-temperature gasket and the ceramic fiber plate, the heat transmission between the inner lining of the air pipe and the outer lining of the air pipe is avoided, the heat insulation effect is achieved, and the transmission efficiency is prevented from being influenced by the generation of condensed water.
In some embodiments, the width of the connection is equal to the width of the high temperature gasket. Therefore, the connecting piece with the width can be used for connecting and fixing the high-temperature gasket to the maximum extent, and heat transfer cannot occur.
In some embodiments, the density of the ceramic fiber sheet is 96KG/m3Or 128KG/m3. Therefore, the ceramic fiber board with the density is convenient to mount and has good heat insulation effect; the ceramic fiber board is a combined product which integrates a ceramic fiber blanket or a mullite fiber blanket and a metal aluminum foil into a whole structure by adopting special equipment and a special adhesive, has the characteristics of light weight, good fireproof and heat-insulating effects, high compactness, corrosion resistance, large longitudinal and transverse tensile strength, convenience in construction and maintenance and the like, and is particularly suitable for thermal equipment, ventilation pipelines and heat supply pipelines which have strict requirements on fire prevention, heat insulation and heat preservation.
In some embodiments, the high temperature gasket is an aluminum silicate high temperature gasket. Therefore, the aluminum silicate material has good heat insulation effect.
In some embodiments, the air duct inner liner is made of galvanized steel having a thickness of 1mm and the air duct outer liner is made of galvanized steel having a thickness of 1 mm.
In some embodiments, the air duct further comprises an air duct flange, and the air duct flange is sleeved on the air duct outer lining. Therefore, two or more than two of the invention can be connected together through the air pipe flanges to form a transmission pipeline together.
In some embodiments, the cross section of the air pipe flange is L-shaped, a plurality of connecting holes are formed in the vertical surface of the air pipe flange, and the horizontal surface of the air pipe flange is tightly attached to the air pipe outer lining. Thereby, it is possible to pass the bolt through the connection hole and fix the two inventions together.
In some embodiments, the right side surface of the C-shaped clamping groove is obliquely arranged with the vertical surface of the air pipe flange.
Drawings
Fig. 1 is a schematic structural view of a return air and exhaust smoke composite air duct according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure view of the back-exhaust and smoke-exhaust composite air duct shown in fig. 1.
In the figure: 1-lining of air pipe; 2-a connector; 3-high temperature gasket; 4-ceramic fiber board; 5-air pipe external lining; 6-air pipe flange; 61-vertical plane; 611-connecting holes; 62-horizontal plane.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 and 2 schematically show the structure of a combined return-exhaust and smoke-exhaust air duct according to an embodiment of the present invention.
As shown in fig. 1 and 2, the composite air duct with air returning, exhausting and smoke discharging functions comprises an air duct lining 1, a connecting piece 2, a high-temperature gasket 3, a ceramic fiber plate 4 and an air duct outer lining 5. In addition, the air return and exhaust combined air pipe also comprises an air pipe flange 6.
In fig. 1, except for the air duct inner liner 1, the air duct outer liner 5 and the air duct flange 6, other components are arranged between the air duct inner liner 1 and the air duct outer liner 5, so that the other components cannot be seen in fig. 1.
As shown in fig. 2, when the present invention is manufactured in a factory, the ceramic fiber plate 4 may be installed outside the air duct liner 1, the lower end of the connecting member 2 may be connected to the inner layer of the air duct liner 1 (i.e., below the upper inner side in fig. 1, the duct is integrally formed by the present invention, and the inner layer may be in contact with the wind in the duct), the upper end may be installed between the high temperature gasket 3 and the ceramic fiber plate 4, and the air duct outer liner 5 may be installed outside the ceramic fiber plate 4 and the connecting member 2. In this embodiment, in order to increase the hardness of the present invention, the air duct inner liner 1, the connecting member 2 and the air duct outer liner 5 must be made of hard material, preferably stainless steel, and the air duct inner liner 1 and the air duct outer liner 5 of the present invention are not directly connected through the connecting member 2, so that substantially no heat transfer occurs between the air duct inner liner 1 and the air duct outer liner 5.
In this embodiment, the connecting member 2 is a C-shaped clamping groove as shown in fig. 2, the lower side surface of the connecting member 2 is tightly attached to the inner layer of the air duct liner 1, the right side surface is tightly attached to the right side of the air duct liner 1 and the right side of the ceramic fiber plate 4, and the upper side surface is tightly attached between the high-temperature gasket 3 and the ceramic fiber plate 4; the lower side of the C-shaped clamping groove can sleeve the air pipe lining 1, the upper side face of the C-shaped clamping groove can be tightly attached between the high-temperature gasket 3 and the ceramic fiber plate 4, the air pipe lining 1 cannot be in heat transfer with the air pipe outer lining 5, the heat insulation effect is achieved, and the transmission efficiency is prevented from being influenced by the generation of condensed water.
In the present embodiment, as shown in fig. 2, the width of the connection member 2 is substantially equal to the width of the high temperature gasket 3, and the connection member 2 having such a width can maximally connect and fix the high temperature gasket 3 without heat transfer.
In the present embodiment, the density of the ceramic fiber sheet 4 is 96KG/m3The ceramic fiber board with the density is convenient to install and has good heat insulation effect; the ceramic fiber board is a combined product which integrates a ceramic fiber blanket or a mullite fiber blanket and a metal aluminum foil into a whole structure by adopting special equipment and a special adhesive, has the characteristics of light weight, good fireproof and heat-insulating effects, high compactness, corrosion resistance, large longitudinal and transverse tensile strength, convenience in construction and maintenance and the like, and is particularly suitable for thermal equipment, ventilation pipelines and heat supply pipelines which have strict requirements on fire prevention, heat insulation and heat preservation. In other embodiments, the density of the ceramic fiber sheet 4 may be 128KG/m3Similarly, the ceramic fiber board 4 with such a density has a better heat insulation effect, and the thermal conductivity (w/m.k) at each temperature is as follows: "0.04 (ambient temperature)", "0.09 (800 ℃ C.)," 0.14(1000 ℃ C.), "0.20 (1200 ℃ C.)".
In this embodiment, the high-temperature gasket 3 is an aluminum silicate high-temperature gasket, and the aluminum silicate material has a good heat insulation effect.
In the embodiment, the air duct inner liner 1 is made of galvanized steel with the thickness of 1mm, the air duct outer liner 5 is made of galvanized steel with the thickness of 1mm, and the air duct outer liner 5 and the air duct inner liner 1 made of galvanized steel have high strength and long service life. Furthermore, in other embodiments, the thicknesses of the duct inner liner 1 and the duct outer liner 5 may also be changed as required, for example: the thicknesses of the air pipe inner liner 1 and the air pipe outer liner 5 can be 2mm, and no matter what thicknesses of the air pipe inner liner 1 and the air pipe outer liner 5, on one hand, the strength and the service life of the air pipe inner liner 1 and the air pipe outer liner 5 are considered, on the other hand, the weight of the whole installation is considered, and if the weight is too heavy, the installation is difficult; therefore, the thicknesses of the air duct inner liner 1 and the air duct outer liner 5 need to be considered by the combination of installation and strength.
As can be seen from fig. 1 and fig. 2, in this embodiment, an air duct flange 6 may be further included, the air duct flange 6 may be disposed on the right side of the outer layer of the air duct outer liner 5, and two or more air duct flanges 6 may connect together to form a transmission pipeline.
Specifically, as shown in fig. 1 and 2, the cross section of the air duct flange 6 is L-shaped, a plurality of connection holes 611 are integrally formed on a vertical surface 61 of the air duct flange 6, and a horizontal surface 62 of the air duct flange 6 is closely attached to the outer layer of the air duct outer liner 5. Thus, it is possible to pass a bolt through the connection hole 611 and fix the two present invention together. In the present embodiment, as shown in fig. 1, a duct flange 6 is provided on the right side of the outer layer of the duct outer liner 5, so that another invention can be installed on the right side of the invention; in other embodiments, the air duct flanges 6 can be arranged on the right side of the outer layer of the air duct outer liner 5 and the left side of the outer layer of the upper air duct outer liner 5, so that the left side and the right side of the invention can be connected with other invention.
As shown in fig. 1 and fig. 2, in the present embodiment, the right side surface of the C-shaped clamping groove is obliquely arranged with the vertical surface 61 of the air duct flange 6, that is, the included angle between the right side surface of the C-shaped clamping groove and the vertical surface 61 of the air duct flange 6 is an obtuse angle.
The invention can be used as a ventilating duct, such as a cold air ventilating duct of a central air conditioner, plays a role in heat insulation by adding the aluminum silicate high-temperature gasket and improving the staggered fastening of the metal C-shaped clamping groove, prevents cold (low temperature) in the ventilating duct from being transmitted to the outer layer galvanized steel plate through the metal C-shaped clamping groove, and prevents the generation of condensed water.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. The utility model provides a return compound tuber pipe of airing exhaust and discharging fume which characterized in that: including outer lining (5) of tuber pipe inside lining (1), connecting piece (2), high temperature gasket (3), ceramic fiber board (4) and tuber pipe, ceramic fiber board (4) are established outside tuber pipe inside lining (1), the one end of connecting piece (2) with the inlayer of tuber pipe inside lining (1) is connected, and the other end is established high temperature gasket (3) with between ceramic fiber board (4), establish outer lining (5) of tuber pipe outside ceramic fiber board (4) and connecting piece (2).
2. The combined air duct for back exhaust and smoke exhaust of claim 1, characterized in that: connecting piece (2) are C style of calligraphy draw-in groove, the downside of connecting piece (2) is hugged closely on the inlayer of tuber pipe inside lining (1), the right flank is hugged closely on the right side of tuber pipe inside lining (1) and the right side of ceramic fiber board (4), the side of going up hugs closely high temperature gasket (3) with between ceramic fiber board (4).
3. The combined air duct for back exhaust and smoke exhaust of claim 2, characterized in that: the width of the connecting piece (2) is equal to that of the high-temperature gasket (3).
4. The combined air duct for back exhaust and smoke exhaust of claim 3, wherein: the density of the ceramic fiber board (4) is 96KG/m3Or 128KG/m3。
5. The combined air duct for back exhaust and smoke exhaust of claim 3, wherein: the density of the ceramic fiber board (4) is 128KG/m3。
6. The return air and smoke exhaust composite air duct according to claim 4 or 5, characterized in that: the high-temperature gasket (3) is an aluminum silicate high-temperature gasket.
7. The combined air duct for back exhaust and smoke exhaust of claim 6, wherein: the air pipe inner liner (1) is made of galvanized steel with the thickness of 1mm, and the air pipe outer liner (5) is made of galvanized steel with the thickness of 1 mm.
8. The combined air duct for back exhaust and smoke exhaust of claim 7, wherein: the air pipe flange (6) is arranged on the air pipe outer lining (5).
9. The combined air duct for back exhaust and smoke exhaust of claim 8, wherein: the cross section of the air pipe flange (6) is L-shaped, a plurality of connecting holes (611) are formed in the vertical surface (61) of the air pipe flange (6), and the horizontal surface (62) of the air pipe flange (6) is tightly attached to the air pipe outer lining (5).
10. The combined air duct for back-blowing and smoke discharging of claim 9, wherein: the right side face of the C-shaped clamping groove and the vertical face (61) of the air pipe flange (6) are obliquely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634218.8A CN111706726A (en) | 2020-07-02 | 2020-07-02 | Composite air pipe with functions of back air exhaust and smoke exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634218.8A CN111706726A (en) | 2020-07-02 | 2020-07-02 | Composite air pipe with functions of back air exhaust and smoke exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111706726A true CN111706726A (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010634218.8A Pending CN111706726A (en) | 2020-07-02 | 2020-07-02 | Composite air pipe with functions of back air exhaust and smoke exhaust |
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| CN (1) | CN111706726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228654A (en) * | 2020-10-16 | 2021-01-15 | 中建四局安装工程有限公司 | Tube well air pipe connecting structure capable of being installed in staggered mode |
-
2020
- 2020-07-02 CN CN202010634218.8A patent/CN111706726A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228654A (en) * | 2020-10-16 | 2021-01-15 | 中建四局安装工程有限公司 | Tube well air pipe connecting structure capable of being installed in staggered mode |
| CN112228654B (en) * | 2020-10-16 | 2022-03-29 | 中建四局安装工程有限公司 | Tube well air pipe connecting structure capable of being installed in staggered mode |
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