CN209385818U - Composite fire-proof ventilation duct - Google Patents
Composite fire-proof ventilation duct Download PDFInfo
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- CN209385818U CN209385818U CN201821428080.0U CN201821428080U CN209385818U CN 209385818 U CN209385818 U CN 209385818U CN 201821428080 U CN201821428080 U CN 201821428080U CN 209385818 U CN209385818 U CN 209385818U
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- fire
- tube body
- ventilation
- outer tube
- ventilation duct
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Abstract
The utility model discloses a kind of composite fire-proof ventilation ducts, and including ventilation tube body and the external integrally formed fire prevention outer tube of ventilation duct is arranged in.Outer tube of preventing fires is once-forming, has simplified processing technology, has promoted the yield of product；Advantageously reduce assembly man-hour and human cost.Ventilation tube body and integrally formed fire prevention outer tube directly are completed to assemble in factory, carry out on-site hoisting after transporting to scene, and its perforation is made to pass through fire partition, then connect at both ends with common ventilation duct.It is not required to high altitude operation, reduces site operation workload, construction efficiency is high, improves duration control difficulty, no security risk.
Description
Technical field
The utility model relates to ventilation duct fields, relate in particular to a kind of ventilation duct for subway subway concourse.
Background technique
Ventilation shaft is the important component of heating ventilation and air-conditioning system in modern architecture, traditional central air-conditioning piping
Galvanized iron sheet air hose is used as unified, after being installed, need to also be come in external cover glass cotton or rubber and plastic insulating layer again with this
The generation of pre- condensate water-proof.In underground railway track project, metro design code requires to point out in GB50157: ventilation duct is being passed through
Need to install additional the fire-proof plate of fire resisting 3 hours within the scope of two meters of fire partition and fire retarding division.
Existing structure is: ventilation tube body uses rectangular tube body, and four pieces of fire-proof plates are coated on four sides of ventilation tube body
On.
The shortcomings that this structure, is:
1, in the installation process of fire-proof plate, the appearance of fire-proof plate is easy to cause to be destroyed.
2, assembly parts needed for fire-proof plate installation are more, assembler's duration, and human cost is high.
3, assembly parts needed for fire-proof plate installation are more, and there are the risks that assembly parts are lost in assembling process.
4, four pieces of fire-proof plate site operations are seldom larger, and specific method for coating is: after air hose is lifted and connected, in height
The longitude and latitude frame of U-shaped lightgage steel joist composition and the reinforcement of transverse direction, longitudinal direction, bottom edge are installed outside empty air hose, then use self threading pin
It is equipped with wall angle splicing fireproof plate, self threading pin spacing 150mm, all insides are required equipped with the place of U-shaped lightgage steel joist with certainly
It attacks nail to be secured to fire-proof plate, encounters at Air duct hanging bracket, heterotype profiled sheet need to be cut and avoided, repeat process heavy workload,
It is at high cost, and due to all high altitude operation of the process of all claddings, thus construction efficiency is low, security risk is very big, to dress
The influence for repairing the duration is obvious.
5, due to the top of subway station hall layer or station layer, be all laid with furred ceiling, ventilation duct be it is shielded, lead
It causes in actual installation process, can there is a situation where fire-proof plate leakage installation and undiscovered, lead to that there are major safety risks.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of composite fire-proof ventilation duct, to solve existing skill
Problems in art.
To achieve the goals above, the technical solution of the utility model is as follows:
Composite fire-proof ventilation duct, which is characterized in that including ventilation tube body and the external integrated molding of ventilation duct is set
Fire prevention outer tube.
As a further improvement, the fiber reinforcement silicate fire prevention outer tube that the fire prevention outer tube is integrally formed.
Further, fiber reinforcement silicate fire prevention outer tube with a thickness of 8mm-20mm.
As a further improvement, the end of the fiber reinforcement silicate fire prevention outer tube is provided with and is convenient for and adjacent air hose
The flange of connection.
Alternatively, the end of the ventilation tube body is provided with the flange convenient for connecting with adjacent air hose.
As a further improvement, the ventilation tube body is the galvanized iron sheet ventilation tube body that surface is provided with insulating layer.It is described
Galvanized iron sheet divulge information tube body with a thickness of 0.5mm to 0.8mm, the insulating layer with a thickness of 3-5mm.
Alternatively, the ventilation tube body is phenolic resin composite air duct tube body.Further, the phenolic resin composite air duct pipe
Body with a thickness of 15~30mm.
Alternatively, the ventilation tube body is composite glassfibre air duct.
The utility model has the advantage that
1, fire prevention outer tube is once-forming, has simplified processing technology, has promoted the yield of product.
2, divulge information tube body and prevent fires outer tube can be designed to general structure bare bones, it can be achieved that single mold it is big
Batch production, effectively increases production efficiency, reduces production cost.
3, assembly man-hour and human cost are advantageously reduced using this structure, avoids destructurized, long service life.
4, the risk that assembling process and part complicated in installation process are lost is eliminated, allows user can be more rapidly
More easily complete the purpose of installation.
5, fiber reinforcement silicate fire prevention outer tube have lightweight, high-strength, fire prevention, smokeless, waterproof, it is mould proof, moisture-proof, every
Sound, heat-insulated, the indeformable, good characteristic that does not rupture.
6, since fire prevention outer tube is an integral structure, fire-proof plate leakage installation and undiscovered situation are effectively prevented,
Reduce security risk.
The composite fire-proof ventilation duct of the utility model is made of ventilation tube body and integrally formed fire prevention outer tube, is directly existed
Factory completes assembling, carries out on-site hoisting after transporting to scene, and its perforation is made to pass through fire partition, then by both ends and commonly
Ventilation duct connection.It is not required to high altitude operation, reduces site operation workload, construction efficiency is high, improve duration control difficulty,
Without security risk.
The characteristics of the utility model, sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clear
Ground understands.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model embodiment 1.
Fig. 2 is the diagrammatic cross-section of the utility model embodiment 1.
Fig. 3 is the schematic diagram of the utility model embodiment 2.
Fig. 4 is the schematic diagram of the utility model embodiment 3.
Wherein, 10- flange；20- fiber reinforcement silicate fire prevention outer tube；30- centrifugally glass-wool；40- galvanized iron sheet is logical
Air hose body；21- fiber reinforcement silicate fire prevention outer tube；211- flange；41- phenolic resin composite air duct tube body；22- fiber increases
Strength silicate fire prevention outer tube；221- flange；42- composite glassfibre air duct tube body.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
The utility model is further described in face in conjunction with specific embodiments.
Embodiment 1
Referring to Fig. 1 and 2, a kind of composite fire-proof ventilation duct is provided with the galvanized iron sheet ventilation tube body of insulating layer including surface
40 are an integral molding structure with fire prevention outer tube, the fire prevention outer tube.
Galvanized iron sheet divulge information tube body 40 with a thickness of 0.5mm to 0.8mm.Insulating layer selects centrifugally glass-wool 30, thickness
For 3-5mm.The end of ventilation tube body is provided with the flange 10 of the 25mm*25mm convenient for connecting with adjacent air hose.It is integrally formed
Fire prevention outer tube is fixed at the outside of galvanized iron sheet ventilation tube body.
Outer tube of preventing fires selects fiber reinforcement silicate fire prevention outer tube 20.The thickness of fiber reinforcement silicate fire prevention outer tube
Degree is 8mm-20mm.Fiber reinforcement silicate fire proofing material belongs to A grades of incombustible materials, and it is straight to resist thermal-flame under fire condition
It connects and burns galvanized steel plain sheet air hose, effective protection galvanized iron sheet ventilation tube body is indeformable, does not collapse, and realizes normal ventilation function
Energy.
Both fiber reinforcement silicate fire proofing material and silicate be it is closely bound up, fiber reinforcement silicate board is mainly
By cement (CaO, such as lime, carbide slurry), siliceous material cementitious material and reinforcing fiber (mostly with cellulose fibre, alkali resistant
Glass fibre etc. replace asbestos fibre) etc. primary raw materials, through novel light material made of molding, steam or autoclave curing
Material.Select fiber reinforcement silicate fire proofing material outer tube have lightweight, high-strength, fire prevention, smokeless, waterproof, it is mould proof, moisture-proof, every
Sound, heat-insulated, the indeformable, good characteristic that does not rupture.
The fire protection requirement of galvanized iron sheet ventilation tube body 40 meets finishing material fire safety rules: A grades of (not fuel woods of fundamental importance
Material)；Instantaneous operative temperature reaches 400 DEG C；Smoke exhaust pipe individually requires: 280 DEG C maintenance work 1 hour.
The fire protection requirement of fiber reinforcement silicate fire prevention outer tube 20 meets building element fire safety rules: national standard experiment method
It executes GB9978: directly being heated by fire heating curve, observe its integrality, deformation extent and heat transfer index to specified time.
Fiber reinforcement silicate prevent fires outer tube temperature-rise period approximately as: heating 20 minutes, material reaches 750 DEG C；It is small to heat 1
When, material reaches 950 DEG C；Heating 2 hours, material reaches 1050 DEG C；Heating 3 hours, material reaches 1120 DEG C.
So can achieve the fire protection requirement in metro design code GB50157 about ventilation duct using the structure.
Processing method:
Galvanized iron sheet ventilation tube body 40 is pre-machined, adds centrifugally glass-wool on the surface of galvanized iron sheet ventilation tube body 40
30, then then cementitious material and reinforcing fiber layer upon layer are applied for mould tire with galvanized iron sheet ventilation tube body 40
On mould tire, when to a thickness of 4mm-10mm, multiple one layer of refractory thermal insulating material on clay, then gelling is applied on refractory thermal insulating material
Material and reinforcing fiber, until reaching defined thickness requirement.After molding, by steam or autoclave curing, fiber is obtained
Enhancing silicate fire prevention outer tube is attached to the composite fire-proof ventilation duct on galvanized iron sheet ventilation tube body.Fiber reinforcement silicate is anti-
Fiery outer tube is once-forming, has simplified processing technology, can also reduce mistake to promote the yield of product.Effectively increase life
Efficiency is produced, production cost is reduced.The risk that assembling process complicated in installation process and part are lost is eliminated, allows use
Person more rapidly can more easily complete the purpose of installation.
When installation: the galvanized iron sheet ventilation tube body of the utility model and the combination of fiber reinforcement silicate fire prevention outer tube are straight
It connects and is completed in factory, carry out on-site hoisting after transporting to scene, and its perforation is made to pass through fire partition, then by both ends and commonly
Ventilation duct connection.It is not required to high altitude operation, reduces site operation workload, construction efficiency is high, improve duration control difficulty,
Without security risk.
Embodiment 2
Referring to Fig. 3, a kind of composite fire-proof ventilation duct, including phenolic resin composite air duct tube body 41 and fire prevention outer tube, it should
Fire prevention outer tube is an integral molding structure.
Integrally formed fire prevention outer tube is fixed at the outside of phenolic resin composite air duct tube body.
Outer tube of preventing fires selects fiber reinforcement silicate fire prevention outer tube 21.Fire prevention outer tube end be provided with convenient for
The flange 211 of the 25mm*25mm of adjacent air hose connection.Fiber reinforcement silicate prevent fires outer tube with a thickness of 8mm-20mm.It is fine
Dimension enhancing silicate fire proofing material belongs to A grades of incombustible materials, can resist thermal-flame under fire condition and directly burn phenolic resin
Composite air duct, effective protection phenolic resin composite air duct tube body is indeformable, does not collapse, and realizes normal ventilation function.
Phenolic resin composite air duct tube body 21 with a thickness of 15~30mm.It is its stability, limit combustion property, wearability, corrosion-resistant
Property, ablation resistance and dielectric properties are all fine.The fire protection requirement of phenolic resin composite air duct tube body meets finishing material fire prevention
Specification: A grades of fundamental importance (incombustible material)；Instantaneous operative temperature reaches 400 DEG C；Smoke exhaust pipe individually requires: 280 DEG C of maintenance works
Make 1 hour.
Fire protection requirement in metro design code GB50157 about ventilation duct can achieve using the structure.
Processing method:
Phenolic resin composite air duct tube body 41 is pre-machined in the first step；And it is spaced and opens up bolt connecting hole.
Second step is fabricated to mould tire (end band method using timber in advance according to the size of phenolic resin composite air duct tube body
It is blue), and embedded nut (being corresponded with bolt connecting hole) on mould tire；Then cementitious material and one layer of reinforcing fiber is another
Apply on mould tire to layer, when to a thickness of 4mm-10mm, multiple one layer of refractory thermal insulating material on clay, then in refractory thermal insulating material
Upper deposited cementitious material and reinforcing fiber, until reaching defined thickness requirement.After molding, steam or autoclave curing, take off
Fall mould tire, with flange 211 fiber reinforcement silicate prevent fires outer tube 21.Fiber reinforcement silicate fire prevention outer tube one
Secondary forming, has simplified processing technology, can also reduce mistake to promote the yield of product.
Fiber reinforcement silicate fire prevention outer tube 21 is sleeved on outside phenolic resin composite air duct tube body 41 by third step, and
Fixation is bolted.Phenolic resin composite air duct tube body and fiber reinforcement silicate fire prevention outer tube can be designed to lead to
Then structure bare bones is assembled, it can be achieved that mass production, effectively increases production efficiency, reduced and be produced into
This.The risk that assembling process and part complicated in installation process are lost is eliminated, user can more rapidly be more convenient
Completion installation purpose.
When installation: composite fire-proof ventilation duct being carried out on-site hoisting, and its perforation is made to pass through fire partition, then by both ends
It is connect with common ventilation duct.
Embodiment 3
Referring to fig. 4, a kind of composite fire-proof ventilation duct, including composite glassfibre air duct tube body 42 and fire prevention outer tube, the fire prevention
Outer tube is an integral molding structure.
Composite glassfibre air duct tube body 42 with a thickness of 20~45mm.It, which has, eliminates the noise, heat preservation, prevents fires, moisture-proof, inleakage
The characteristics such as small, material is light, easy carrying hanging.The fire protection requirement of composite glassfibre air duct tube body meets finishing material fire safety rules: base
Plinth requires A grades (incombustible material)；Instantaneous operative temperature reaches 400 DEG C；Smoke exhaust pipe individually requires: 280 DEG C of maintenance work 1 are small
When.
Integrally formed fire prevention outer tube is fixed at the outside of composite glassfibre air duct tube body.
Outer tube of preventing fires selects fiber reinforcement silicate fire prevention outer tube 22.Fiber reinforcement silicate fire prevention outer tube 22
End is provided with the flange 221 of the 25mm*25mm convenient for connecting with adjacent air hose.The thickness of fiber reinforcement silicate fire prevention outer tube
Degree is 8mm-20mm.Composite glassfibre air duct tube body and fire prevention outer tube are fixed by connecting plate and bolt.
Fiber reinforcement silicate fire proofing material belongs to A grades of incombustible materials, can resist thermal-flame under fire condition and directly burn
Burn composite glassfibre air duct, and effective protection composite glassfibre air duct tube body is indeformable, does not collapse, and realizes normal ventilation function.
Fire protection requirement in metro design code GB50157 about ventilation duct can achieve using the structure.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (9)
1. composite fire-proof ventilation duct, which is characterized in that including ventilation tube body and external integrally formed of ventilation duct is arranged in
Fire prevention outer tube, the fiber reinforcement silicate fire prevention outer tube that the fire prevention outer tube is integrally formed.
2. composite fire-proof ventilation duct according to claim 1, which is characterized in that the fiber reinforcement silicate fire prevention housing
Pipe with a thickness of 8mm-20mm.
3. composite fire-proof ventilation duct according to claim 1, which is characterized in that the fiber reinforcement silicate fire prevention housing
The flange that the end of pipe is provided with convenient for connecting with adjacent air hose.
4. composite fire-proof ventilation duct according to claim 1, which is characterized in that the end of the ventilation tube body is provided with just
In the flange being connect with adjacent air hose.
5. composite fire-proof ventilation duct according to claim 1, which is characterized in that the ventilation tube body is that surface is provided with guarantor
The galvanized iron sheet ventilation tube body of warm layer.
6. composite fire-proof ventilation duct according to claim 5, which is characterized in that the thickness of the galvanized iron sheet ventilation tube body
For 0.5mm to 0.8mm, the insulating layer with a thickness of 3-5mm.
7. composite fire-proof ventilation duct according to claim 1, which is characterized in that the ventilation tube body is that phenolic resin is compound
Air hose tube body.
8. composite fire-proof ventilation duct according to claim 7, which is characterized in that the phenolic resin composite air duct tube body
With a thickness of 15~30mm.
9. composite fire-proof ventilation duct according to claim 1, which is characterized in that the ventilation tube body is composite glass fiber wind
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821428080.0U CN209385818U (en) | 2018-08-31 | 2018-08-31 | Composite fire-proof ventilation duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821428080.0U CN209385818U (en) | 2018-08-31 | 2018-08-31 | Composite fire-proof ventilation duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385818U true CN209385818U (en) | 2019-09-13 |
Family
ID=67869162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821428080.0U Active CN209385818U (en) | 2018-08-31 | 2018-08-31 | Composite fire-proof ventilation duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128514A (en) * | 2020-09-18 | 2020-12-25 | 浙江天仁风管有限公司 | Fire-resistant iron sheet air duct |
-
2018
- 2018-08-31 CN CN201821428080.0U patent/CN209385818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128514A (en) * | 2020-09-18 | 2020-12-25 | 浙江天仁风管有限公司 | Fire-resistant iron sheet air duct |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230605 Address after: 200331, Room 503, Building 148, No. 500 Zhennan Road, Putuo District, Shanghai Patentee after: SHANGHAI MEISHENG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: Room 213, building 1, 2889 Qilianshan South Road, Putuo District, Shanghai 200331 Patentee before: SHANGHAI JIACHENG RAILWAY TRANSPORTATION SAFETY SYSTEM Corp. |
|
| TR01 | Transfer of patent right |