CN110185064A - Underground circle pipe gallery external hanging type bilayer fire prevention system - Google Patents
Underground circle pipe gallery external hanging type bilayer fire prevention system Download PDFInfo
- Publication number
- CN110185064A CN110185064A CN201910514111.7A CN201910514111A CN110185064A CN 110185064 A CN110185064 A CN 110185064A CN 201910514111 A CN201910514111 A CN 201910514111A CN 110185064 A CN110185064 A CN 110185064A
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- fire
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The present invention provides a kind of underground circle pipe gallery external hanging type bilayer fire prevention system, belongs to underground engineering and take precautions against natural calamities field.Plug-in fireprotection layer is arc-shaped construction, can closely be agreed with piping lane main body, and plug-in fireprotection layer is made of two layers of ectonexine plug-in fire-proof plate, and connector connects and forms a closure entirety with bottom supporting course between the plug-in fire-proof plate of ectonexine passes through plate；Plug-in fireprotection layer and piping lane main body use therebetween connector between plate to be attached；Air thermal preservation insulating course is set between the plug-in fire-proof plate of ectonexine, the fire-proof heat-insulating materials such as coal mine slag can be filled in air thermal preservation insulating course and install line holder for overlap communication draft tube liner；Fire protecting performance of the present invention is good, stress performance is good, is easily installed, and is easy replacement, fast and convenient, the effective damage for reducing fire to underground pipe gallery tube body is installed, the performance that makes to take precautions against natural calamities is obviously improved, the fire resistance of this body structure of city piping lane is improved, improves and controls fiery system.
Description
Technical field
Underground engineering of the present invention is taken precautions against natural calamities field, and in particular to a kind of underground circle pipe gallery external hanging type bilayer fire prevention system
System.
Background technique
With the development of urban construction, a large amount of city piping lane is being built, and in city, piping lane is more and more is applied
And while bringing convenience to people's lives, the fire of city piping lane also frequently occurs all over the world, city piping lane fire
Calamity also causes serious casualties and huge property to damage other than causing huge damage to infrastructure to locality
It loses.And it is tired due to what is rescued when the limited escape condition of city piping lane itself and fire fighter enter fire city piping lane
The special circumstances such as difficulty require that piping lane design in city should take the safety measure of more systematization.
Underground structure was quickly grown in China in recent years, and numerous subways, Underground Urban Complex are built up in succession, and underground structure
Fire safety problem but be always underground structure be difficult to the difficulty overcome.
Fireproof coating is generallyd use at present, however the thickness of fireproof coating and thermal coefficient are limited, can not play at all
Effect effect.
Summary of the invention
The technical solution adopted by the invention is as follows:
A kind of underground circle pipe gallery external hanging type bilayer fire prevention system, including piping lane main body, plug-in fire-proof plate, bottom load-bearing
Layer, plate interconnecting piece, expansion bolt, line holder, fire-resistant rubber set, air thermal preservation insulating course, coal mine slag filler material, edges of boards are recessed
Slot；
Plug-in fire-proof plate is that arc-shaped construction closely agrees with piping lane main body inner wall；
Plug-in fire-proof plate is made of the plug-in fire-proof plate of internal layer and the plug-in fire-proof plate of outer layer；The plug-in fire-proof plate of several internal layers is by wearing
The expansion bolt for crossing plate interconnecting piece prepared screw-bolt hole is close to piping lane main body inner wall, same cross-section it is two neighboring in
One edges of boards of the plug-in fire-proof plate of layer are docking together；Along the plug-in fire-proof plate of internal layer or so edges of boards docking, one row of equidistant placement is swollen
Swollen bolt is fixed in piping lane main body inner wall；
The plug-in fire-proof plate of several outer layers is arranged in the side contacted with piping lane body cavity；The outer layer of same cross-section is plug-in
Fire-proof plate edges of boards are stuck in the plate of plate interconnecting piece in link slot；
The plug-in fire-proof plate of internal layer and the plug-in fire-proof plate of outer layer are fixed by connector between plate；
Two edges of boards of the plug-in fire-proof plate of internal layer arrange several bolt holes；The plug-in fire-proof plate of outer layer and bottom load-bearing
The edges of boards of layer connection arrange several bolt holes；
Bottom supporting course passes through the plug-in fire-proof plate of internal layer and the plug-in fire prevention of outer layer in piping lane body interior bottom side, by expansion bolt
Bottom supporting course is fixed on piping lane main body inner wall by the bolt hole of plate；
Space between the plug-in fire-proof plate of internal layer and the plug-in fire-proof plate of outer layer is air thermal preservation insulating course, in air thermal preservation insulating course
Middle filling coal mine slag filler material；
Contact position between the axial plug-in fire-proof plate of internal layer between the plug-in fire-proof plate of outer layer, setting edges of boards preformed plate side are recessed
Slot, and reserved in edges of boards and line holder is installed for overlapping communication draft tube liner on edges of boards groove；Its shape and edges of boards preformed plate
Side groove matches；The fire-resistant rubber set is arranged in the outside of plate interconnecting piece.
Further, the plate interconnecting piece is king's font arc surface shape construction and the plug-in fire-proof plate with arc-shaped construction
Edges of boards match；, the plate face of lower part is fixed plate, prepared screw-bolt hole is opened up in two outsides of fixed plate, for plug-in with internal layer
Fire-proof plate connection；It is prefabricated interior snap-gauge in intermediate plate face, the plate face at top is outer card plate, and intermediate vertical joints are divided into company
Fitting main body；Interior snap-gauge and outer card plate and connector main body surround link slot in a plate；
The width of link slot is greater than the width of the plug-in fire-proof plate of outer layer in plate, places one layer of damping rubber pad in plate in link slot；
One end of the plug-in fire-proof plate non-bolt hole of outer layer is arranged in plate in link slot.
Further, load-bearing plate face is bottom supporting course middle section, and plate face outer layer trip and plate face internal layer trip are arranged
In load-bearing plate face two sides, and an edges of boards link slot two is surrounded, plate face internal layer trip and piping lane main body inner wall surround an edges of boards
Link slot one, and uniformly one row's bolt hole of equidistant placement on plate face outer layer trip and plate face internal layer trip；
The plug-in fire-proof plate of outer layer has one end of bolt hole to be arranged in edges of boards link slot two, and the plug-in fire-proof plate of internal layer is held with bottom
One end of double-layer connection is arranged in edges of boards link slot one.
Further, in the medial surface of line holder, the left and right sides of line holder is bracket fixing plate, line holder
Intermediate prefabricated bracket fixing groove, the face that bracket fixing plate is contacted with bracket fixing groove are fixed trough rim rib, and fixing bolt passes through branch
Line holder is mounted in piping lane main body by the bolt hole reserved in frame fixed plate；
Connection bolt is horizontally through horizontal prepared screw-bolt hole hole on the fixation trough rim rib of the right and left, and to secure the stand to bracket solid
On fixed board.
Further, fire-resistant rubber set glues the multi-purpose glue of transparent plastic by JL metal and is fixed on outer card plate.
Further, the bottom supporting course is by aluminate cement, magnesia, quartz sand, silica flour, silicon ash, water, diminishing
Agent, basalt fibre, glass fibre composition.
Further, the bottom supporting course is following raw material by made of following weight parts: aluminate cement part, oxygen
Change magnesium part, quartz sand part, silica flour part, silicon ash part, moisture content, parts of water-reducing agent, parts of basalt fibre, parts of glass fibre.
Further, the plug-in fire-proof plate uses thermosetting resin-impregnated paper high-pressure laminated board, with insulation,
High-strength light, fire resistant flame retardant, it is easy to process the features such as.
Further, the plug-in fire-proof plate, bottom supporting course are arcuate structure.
Beneficial effects of the present invention:
Fire protecting performance of the present invention is good, stress performance is good, is easily installed, and is easy replacement, and installation is fast and convenient, effectively reduces fire
Damage to underground pipe gallery tube body, the performance that makes to take precautions against natural calamities are obviously improved, and improve the fire resistance of this body structure of city piping lane, complete
It is kind to control fiery system.The effective casualties and economic loss reduced when fire occurs for underground structure, is served as anti-using coal mine slag
The waste material that fiery heat-insulating filler consumes mine preserves the ecological environment, reduces resource and energy consumption.
Detailed description of the invention
Fig. 1 is underground circle pipe gallery external hanging type bilayer fire prevention system fire prevention schematic diagram；
Fig. 2 is piping lane main body, plug-in fireprotection layer, bottom bearing plate three's connection schematic diagram；
Fig. 3 is joint detail figure at A in Fig. 2 of the present invention；
Fig. 4 is joint detail figure at B in Fig. 2 of the present invention；
Fig. 5 is that air thermal preservation insulating course fills coal mine slag filler material schematic diagram；
Fig. 6 is bottom load-bearing plate structure schematic diagram；
Fig. 7 is plate interconnecting piece structural schematic diagram；
Fig. 8 is plate interconnecting piece front view；
Fig. 9 is line holder structural schematic diagram；
Figure 10 is line holder and plug-in fireprotection layer connection schematic diagram；
Figure 11 is the front view of Figure 10；
In figure: 1 is piping lane main body；2 be plug-in fire-proof plate；2-1 is the plug-in fire-proof plate of internal layer；2-2 is the plug-in fire-proof plate of outer layer；3
For bottom supporting course；4 be plate interconnecting piece；5 be expansion bolt；6 be line holder；7 be fire-resistant rubber set；8 be air thermal preservation
Insulating course；9 be coal mine slag filler material；10 be edges of boards groove；
3-1 is load-bearing plate face；3-2 plate face outer layer trip；3-3 is plate face internal layer trip；3-4 is edges of boards link slot one；3-5 is plate
Side link slot two；
4-1 is fixed plate；4-2 is connector main body；4-3 is interior snap-gauge；4-4 is outer card plate；4-5 is link slot in plate；4-6 is
Bolt hole；
6-1 is fixing bolt；6-2 is bracket fixing plate；6-3 is bracket；6-4 is connection bolt；6-5 is bracket fixing groove；6-6
For fixed trough rim rib.
Specific embodiment
In order to further illustrate the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments, but not
They can be interpreted as limiting the scope of the present invention.
Embodiment: a kind of underground circle pipe gallery external hanging type bilayer fire prevention system, including piping lane main body 1, plug-in fire prevention
Plate 2, bottom supporting course 3, plate interconnecting piece 4, expansion bolt 5, line holder 6, fire-resistant rubber set 7, air thermal preservation insulating course 8,
Coal mine slag filler material 9, edges of boards groove 10；
Plug-in fire-proof plate 2 is that arc-shaped construction closely agrees with 1 inner wall of piping lane main body；
Plug-in fire-proof plate 2 is made of the plug-in fire-proof plate 2-1 of internal layer and the plug-in fire-proof plate 2-2 of outer layer；The plug-in fire prevention of several internal layers
Plate 2-1 is close to 1 inner wall of piping lane main body, same cross by the expansion bolt 5 across 4 prepared screw-bolt hole 4-6 of plate interconnecting piece
An edges of boards of the plug-in fire-proof plate 2-1 of two neighboring internal layer at section are docking together；Along plug-in fire-proof plate 2-1 of internal layer or so
One row's expansion bolt 5 of equidistant placement is fixed on 1 inner wall of piping lane main body at edges of boards docking；
The plug-in fire-proof plate 2-2 of several outer layers is arranged in the side contacted with 1 cavity of piping lane main body；The outer layer of same cross-section
Plug-in fire-proof plate 2-2 edges of boards are stuck in the plate of plate interconnecting piece 4 in link slot 4-5；
Connector 4 is fixed between the plug-in fire-proof plate 2-1 of the internal layer and plug-in fire-proof plate 2-2 of outer layer passes through plate；
Two edges of boards of the plug-in fire-proof plate 2-1 of internal layer arrange several bolt holes；The plug-in fire-proof plate 2-2 of outer layer and bottom
The edges of boards that portion's supporting course 3 connects arrange several bolt holes；
Bottom supporting course 3 is passed through outside the plug-in fire-proof plate 2-1 of internal layer and outer layer in 1 inside bottom side of piping lane main body by expansion bolt 5
Bottom supporting course 3 is fixed on 1 inner wall of piping lane main body by the bolt hole for hanging fire-proof plate 2-2；
Space between the plug-in fire-proof plate 2-1 of internal layer and the plug-in fire-proof plate 2-2 of outer layer is air thermal preservation insulating course 8, is protected in air
Coal mine slag filler material 9 is filled in warm insulating course 8；
Contact position between the axial plug-in fire-proof plate 2-1 of internal layer between the plug-in fire-proof plate 2-2 of outer layer, setting edges of boards are reserved
Edges of boards groove 10, and reserved in edges of boards and line holder 6 is installed for overlapping communication draft tube liner on edges of boards groove 10；Its shape with
Edges of boards reserve edges of boards groove 10 and match；The fire-resistant rubber set 7 is arranged in the outside of plate interconnecting piece 4.
The plate interconnecting piece 4 be king's font arc surface shape construct and with 2 edges of boards phase of the plug-in fire-proof plate of arc-shaped construction
Matching；, the plate face of lower part is fixed plate 4-1, open up prepared screw-bolt hole 4-6 in two outsides fixed plate 4-1, for outside internal layer
Hang fire-proof plate 2-1 connection；It is prefabricated interior snap-gauge 4-3 in intermediate plate face, the plate face at top is outer card plate 4-4, and intermediate is vertical
Coupling part is connector main body 4-2；Interior snap-gauge 4-3 and outer card plate 4-4 and connector main body 4-2 surround link slot in a plate
4-5；
The width of link slot 4-5 is greater than the width of the plug-in fire-proof plate 2-2 of outer layer in plate, places one layer in link slot 4-5 in plate and subtracts
Shake rubber mat；
One end of the plug-in fire-proof plate 2-2 non-bolt hole of outer layer is arranged in plate in link slot 4-5.
Load-bearing plate face 3-1 is 3 middle section of bottom supporting course, and plate face outer layer trip 3-2 and plate face internal layer trip 3-3 are arranged
In the two sides load-bearing plate face 3-1, and two 3-5 of edges of boards link slot is surrounded, plate face internal layer trip 3-3 is enclosed with 1 inner wall of piping lane main body
At one 3-4 of edges of boards link slot, and uniformly one row of equidistant placement on plate face outer layer trip 3-2 and plate face internal layer trip 3-3
Bolt hole；
The plug-in fire-proof plate 2-2 of outer layer has one end of bolt hole to be arranged in two 3-5 of edges of boards link slot, the plug-in fire-proof plate 2- of internal layer
1 one end connecting with bottom supporting course 3 is arranged in one 3-4 of edges of boards link slot.
In the medial surface of line holder 6, the left and right sides of line holder 6 is bracket fixing plate 6-2, in line holder 6
Between the face that is contacted with bracket fixing groove 6-5 stent preform fixing groove 6-5, bracket fixing plate 6-2 be fixed trough rim rib 6-6, it is fixed
Bolt 6-1 passes through the bolt hole reserved on bracket fixing plate 6-2 and line holder 6 is mounted in piping lane main body 1；Connect bolt
6-4 is horizontally through on the fixation trough rim rib 6-6 of the right and left horizontal prepared screw-bolt hole hole and bracket 6-3 is fixed on bracket fixing plate
On 6-2.
Fire-resistant rubber set 7 glues the multi-purpose glue of transparent plastic by JL-6218 metal and is fixed on outer card plate 4-4.
The bottom supporting course 3 is following raw material by made of following weight parts: 30 parts of aluminate cement, magnesia 28
Part, 23 parts of quartz sand, 7 parts of silica flour, 6 parts of silicon ash, 8 parts of water, 0.78 part of water-reducing agent, 0.3 part of basalt fibre, glass fibre
0.3 part.The plug-in fire-proof plate 2 uses thermosetting resin-impregnated paper high-pressure laminated board, with insulation, high-strength light,
Fire resistant flame retardant, it is easy to process the features such as.The plug-in fire-proof plate 2, bottom supporting course 3 are arcuate structure.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of underground circle pipe gallery external hanging type bilayer fire prevention system, including piping lane main body (1), plug-in fire-proof plate (2), bottom
Portion's supporting course (3), plate interconnecting piece (4), expansion bolt (5), line holder (6), fire-resistant rubber set (7), air thermal preservation partition
Layer (8), coal mine slag filler material (9), edges of boards groove (10), it is characterised in that:
Plug-in fire-proof plate (2) is that arc-shaped construction closely agrees with piping lane main body (1) inner wall；
Plug-in fire-proof plate (2) is made of the plug-in fire-proof plate of internal layer (2-1) and the plug-in fire-proof plate of outer layer (2-2)；Outside several internal layers
It hangs fire-proof plate (2-1) and is close to piping lane master by passing through the expansion bolt (5) of plate interconnecting piece (4) prepared screw-bolt hole (4-6)
One edges of boards of body (1) inner wall, the plug-in fire-proof plate of two neighboring internal layer (2-1) of same cross-section are docking together；In
One row's expansion bolt (5) of equidistant placement is fixed in piping lane main body (1) at plug-in fire-proof plate (2-1) the left and right edges of boards docking of layer
On wall；
The plug-in fire-proof plate of several outer layers (2-2) is arranged in the side contacted with piping lane main body (1) cavity；Same cross-section
It is inner that the plug-in fire-proof plate of outer layer (2-2) edges of boards are stuck in link slot (4-5) in the plate of plate interconnecting piece (4)；
The plug-in fire-proof plate of internal layer (2-1) and the plug-in fire-proof plate of outer layer (2-2) are fixed by connector (4) between plate；
Two edges of boards of the plug-in fire-proof plate of internal layer (2-1) arrange several bolt holes；The plug-in fire-proof plate of outer layer (2-2)
The edges of boards connecting with bottom supporting course (3) arrange several bolt holes；
Bottom supporting course (3) passes through the plug-in fire-proof plate of internal layer (2-1) by expansion bolt (5) in the internal bottom side of piping lane main body (1)
Bottom supporting course (3) is fixed on piping lane main body (1) inner wall with the bolt hole of the plug-in fire-proof plate of outer layer (2-2)；
Space between the plug-in fire-proof plate of internal layer (2-1) and the plug-in fire-proof plate of outer layer (2-2) is air thermal preservation insulating course (8),
Coal mine slag filler material (9) are filled in air thermal preservation insulating course (8)；
Edges of boards are arranged in contact position between the axial plug-in fire-proof plate of internal layer (2-1) between the plug-in fire-proof plate of outer layer (2-2)
Reserved edges of boards groove (10), and reserved in edges of boards and line holder (6) are installed for overlapping communication ventilation duct on edges of boards groove (10)
Line；Its shape reserves edges of boards groove (10) with edges of boards and matches；The fire-resistant rubber set (7) is arranged in plate interconnecting piece (4)
Outside.
2. underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 1, it is characterised in that: the plate
Interconnecting piece (4) is that king's font arc surface shape constructs and matches with plug-in fire-proof plate (2) edges of boards of arc-shaped construction；, lower part
Plate face be fixed plate (4-1), prepared screw-bolt hole (4-6) is opened up in the outside of fixed plate (4-1) two, for plug-in anti-with internal layer
Fiery plate (2-1) connection；It is prefabricated interior snap-gauge (4-3) in intermediate plate face, the plate face at top is outer card plate (4-4), and intermediate hangs down
Direct-connected socket part is divided into connector main body (4-2)；Interior snap-gauge (4-3) and outer card plate (4-4) and connector main body (4-2) surround one
Link slot (4-5) in plate；
The width of link slot (4-5) is greater than the width of the plug-in fire-proof plate of outer layer (2-2) in plate, places in link slot (4-5) in plate
One layer of damping rubber pad；
One end of the plug-in fire-proof plate of outer layer (2-2) non-bolt hole is arranged in plate in link slot (4-5).
3. underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 1, it is characterised in that: bearing plate
Face (3-1) is bottom supporting course (3) middle section, and plate face outer layer trip (3-2) and plate face internal layer trip (3-3) are arranged in load-bearing
The two sides plate face (3-1), and an edges of boards link slot two (3-5) is surrounded, plate face internal layer trip (3-3) and piping lane main body (1) inner wall
An edges of boards link slot one (3-4) is surrounded, and uniformly equidistant on plate face outer layer trip (3-2) and plate face internal layer trip (3-3)
Arrange row's bolt hole；
The plug-in fire-proof plate of outer layer (2-2) has one end of bolt hole to be arranged in edges of boards link slot two (3-5), the plug-in fire prevention of internal layer
One end that plate (2-1) is connect with bottom supporting course (3) is arranged in edges of boards link slot one (3-4).
4. underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 1 is it is characterized by: in pipeline
The medial surface of bracket (6), the left and right sides of line holder (6) are bracket fixing plate (6-2), the intermediate prefabricated of line holder (6)
Bracket fixing groove (6-5), the face that bracket fixing plate (6-2) is contacted with bracket fixing groove (6-5) they are fixed trough rim rib (6-6), Gu
Determine the bolt hole that bolt (6-1) is reserved on bracket fixing plate (6-2) and line holder (6) is mounted on piping lane main body (1)
On；
Connection bolt (6-4) is horizontally through on the fixation trough rim rib (6-6) of the right and left horizontal prepared screw-bolt hole hole for bracket (6-
3) it is fixed on bracket fixing plate (6-2).
5. underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 1, it is characterised in that: fire prevention rubber
Gum cover (7) glues the multi-purpose glue of transparent plastic by JL-6218 metal and is fixed on outer card plate (4-4).
6. underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 1, it is characterised in that: the bottom
Portion's supporting course (3) is by aluminate cement, magnesia, quartz sand, silica flour, silicon ash, water, water-reducing agent, basalt fibre, glass fibers
Dimension composition.
7. a kind of underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 6, it is characterised in that: described
Bottom supporting course (3) is following raw material by made of following weight parts: 30 parts of aluminate cement, 28 parts of magnesia, quartz sand
23 parts, 7 parts of silica flour, 6 parts of silicon ash, 8 parts of water, 0.78 part of water-reducing agent, 0.3 part of basalt fibre, 0.3 part of glass fibre.
8. underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 1, it is characterised in that: described outer
It hangs fire-proof plate (2) and uses thermosetting resin-impregnated paper high-pressure laminated board.
9. underground circle pipe gallery external hanging type bilayer fire prevention system according to claim 1, it is characterised in that: described outer
Hang fire-proof plate (2), bottom supporting course (3) is arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910514111.7A CN110185064A (en) | 2019-06-14 | 2019-06-14 | Underground circle pipe gallery external hanging type bilayer fire prevention system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910514111.7A CN110185064A (en) | 2019-06-14 | 2019-06-14 | Underground circle pipe gallery external hanging type bilayer fire prevention system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185064A true CN110185064A (en) | 2019-08-30 |
Family
ID=67721824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910514111.7A Withdrawn CN110185064A (en) | 2019-06-14 | 2019-06-14 | Underground circle pipe gallery external hanging type bilayer fire prevention system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110185064A (en) |
-
2019
- 2019-06-14 CN CN201910514111.7A patent/CN110185064A/en not_active Withdrawn
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190830 |
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| WW01 | Invention patent application withdrawn after publication |