CN111321818B - Internal and external joint gunning reinforced fireproof plate type node structure and use method thereof - Google Patents
Internal and external joint gunning reinforced fireproof plate type node structure and use method thereof Download PDFInfo
- Publication number
- CN111321818B CN111321818B CN202010301527.3A CN202010301527A CN111321818B CN 111321818 B CN111321818 B CN 111321818B CN 202010301527 A CN202010301527 A CN 202010301527A CN 111321818 B CN111321818 B CN 111321818B
- Authority
- CN
- China
- Prior art keywords
- tube
- node
- hollow
- pipe
- plate
- 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.)
- Active
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/08—Water curtains
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional [3D] framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
-
- 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
- E04B1/943—Building elements specially adapted therefor elongated
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional [3D] framework structures
- E04B2001/1957—Details of connections between nodes and struts
- E04B2001/1963—Screw connections with axis at an angle, e.g. perpendicular, to the main axis of the strut
-
- 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
- E04B2001/949—Construction elements filled with liquid, e.g. water, either permanently or only in case of fire
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
Abstract
The invention relates to an internal and external joint gunning reinforced fireproof plate type node structure and a use method thereof, which are used for judging that a fire disaster occurs; starting a pressurized water supply system, enabling water to flow from an outer pipe into a disc-shaped spray head body through an inner sliding pipe and impact a cambered surface bottom shell, enabling the disc-shaped spray head body to drive an inner sliding pipe ridge to slide along a pipe orifice reducing ring, enabling the cambered surface bottom shell to touch a lower node disc cover to fall off, enabling the inner sliding pipe ridge to continuously slide along the pipe orifice reducing ring until the surface of a gasket I contacts with the surface of a gasket II, spraying water mist from twelve nozzles at full pressure at the moment, completely wrapping the inside and outside of a plate-type node, and realizing heat insulation and cooling of the whole plate-type node; judging that the fire is extinguished, closing the water supply system, and reversely pushing the dish-shaped spray head body to drive the inner slide pipe ridge to slide along the pipe orifice shrinkage ring until the inner slide pipe ridge is stored and reset; and covering the lower node tray cover into the lower node tray hole. The invention provides a reference for the fireproof protection design of the newly-built aluminum alloy net shell and the fireproof modification and the revision of related standards during reconstruction and extension, and has huge social and economic and public safety benefits.
Description
Technical Field
The invention relates to the field of building structure fireproof, in particular to an internal and external combined gunning reinforced fireproof plate type node structure and a use method thereof, which are developed aiming at a novel metal building structure of an aluminum alloy net shell, and are integrated with a structure for cooling the plate type node structure by means of water mist under fire and fireproof protection, and are used after the fire occurs.
Background
In public buildings (stadiums, exhibitions, theatres and plant gardens), in order to pursue the expression of metal texture appearance and the aesthetic feeling of dense triangular meshes of indoor ceilings, architects increasingly select aluminum alloy net shells with various shapes as roof bearing structures, such as Nanjing cattle head mountain Buddha top palace, chengdu worry five sports event centers and the like.
For the aluminum alloy net shell node structure which is currently used in a large amount, the application number is as follows: cn20161045175. X describes the connection relationship between components. The corrosion resistance is good, the later maintenance cost is low and is always an element for selecting an aluminum alloy structure, but the poorer fire resistance compared with a steel structure is also an obstacle for popularizing the aluminum alloy structure.
The fireproof paint is sprayed on the surface of the aluminum alloy component (application number: CN 201710501406.1), which affects the metal texture, and no mature paint product for protecting the aluminum alloy component is currently applied on the market, and electrochemical corrosion is possible to be generated by the fireproof paint for spraying the steel structure.
The application number is as follows: the technology proposed by CN201720334290.2 is at least messy under the ceiling, and the original purpose of building design is overcome, and the basic building aesthetic requirement is not met.
Therefore, it is needed to provide an integrated fireproof plate type node structure which does not damage the metal texture of the aluminum alloy structure, does not damage the aesthetic feeling of the building ceiling of the aluminum alloy net shell structure, is suitable for the curved surface modeling of the net shell structure (the net shell is spherical, arched or free curved, the net adopts an equilateral or non-equilateral triangle, the node plate is no longer a flat plate, and the rod pieces are no longer uniformly distributed at 60-degree included angles), so as to achieve the purpose of compensating the relatively poor fireproof performance of the aluminum alloy (net shell) structure. Clearly water protection techniques are suitable, especially mist protection techniques are more economical and efficient to achieve, which will necessarily involve the spray head, a product that atomizes water.
The general technical profile of the current technology is as follows:
(1) Spray head product and construction for fire suppression: such sprinklers are widely available, but are not the same as the present invention because "passive fire protection of building structures cannot be replaced by fire suppression" is a well-defined matter and industry consensus. Special examples are: application number: CN201810466046.0 discloses a device for realizing rotary fire extinguishing and improving fire extinguishing efficiency by utilizing recoil force of water jet through a spray nozzle cylinder body with an inclined hole, and the similar technology has application number: CN201320099018.2; application number: cn20161045175. X discloses a shear-ability enhanced slab node construction that relies on lower node disc openings to install fire control and extinguishing sprinklers; application number: CN201410636099.4 discloses a hidden spray head in suspended ceiling which is developed to meet the requirements of beautiful appearance and structural design in important places, and which is extended under the action of pressurized water by means of a telescopic pipe, so that the decorative cover cap is lifted off by the water mist spray head to extinguish fire, and after the spray head is used, the spray head can be pushed back to the original position and is covered by the decorative cover cap. The telescopic pipe is a multi-section hollow circular pipe, and sealing rings are arranged between every two sections, but the construction details are not given;
(2) Spray head device for dust removal: application number: CN201710962239.0 discloses a device for further atomizing atomized water droplets into finer particles for mixing with flue gas by means of wind.
(3) Spray head device for cooling industrial products: application number: CN201822024334.9 discloses a device for cooling high-temperature castings by arranging a plurality of existing spray heads, in order to achieve uniform cooling, the high-temperature castings rotate in the device; application number: CN201120451865.1 discloses a device for cooling steel pipes from different angles outside the steel pipe, especially for steel pipes with thicker wall thickness, which can be cooled uniformly without generating cracks and poor mechanical properties. It can be seen that: the problem addressed by such techniques is that unlike the present invention, there is no specific reference technique.
(4) Spray head device for thermal insulation: application number: CN201320499669.0 discloses a spray head device for protecting vertical components such as glass curtain wall by using water mist, which is characterized in that a spray head is arranged at the outer side of the component, and sprays water to the surface of the component exposed to a fire scene; application number: CN201720334290.2 discloses a technology for blocking high-temperature flue gas from impacting an aluminum alloy (arched) roof by means of forming a conical outer water jet curtain by impacting the inner surface of a conical guide plate with a high-pressure water impact opening towards the roof by fixing a pipeline below the aluminum alloy roof. Obviously, the technology ignores that aluminum alloy roofs in the current public buildings are all application numbers: the current situation of the triangular hollowed-out plate-type node latticed shell structure in the middle of the grid described in CN20161045175. X only emphasizes the installation below a roof, but does not emphasize which part of aluminum alloy components to protect, which is lack of pertinence, and if the aluminum alloy components are applied, the extremely expensive cost is not saved; the design of the fire protection attached to the surface of the aluminum alloy structure, wherein the spray head is connected with the tail end of the connecting pipe extending out of the roof, destroys the aesthetic feeling of the regular aluminum alloy structure of the ceiling, shields the metal texture of the aluminum alloy structure, and has the same defects as fire-proof paint; meanwhile, the spray head scheme is that water resources are wasted, the aluminum alloy structure cannot contact water in the formed conical water curtain, the protection radius of the conical water curtain which can extend outwards is limited, water is scattered finally, and particularly, the aluminum alloy net shell structure with the beam height in the range of 250-550 mm in the current engineering cannot protect the surface of a large-area component (a web and the inner side surfaces of upper flanges and lower flanges connected with the web).
(5) Spray head with cooling and heat insulation functions: application number: CN201010298507.1 in order to solve the problem that the water smoke shower nozzle can not autogiration, fog droplet particle diameter is big, water consumption is many, spray inhomogeneous, provides one kind on the disc face of installation nozzle, relies on the nozzle to have certain plane contained angle with the terminal of radius to the water jet provides the shower nozzle device of rotational force to the tangential component of disc, realizes that water mist 360 evenly sprays, satisfies building ventilation shaft, safe evacuation passageway, the object surface that the radar detected and infrared detection unanimous demand. When the spray head is applied to the problems to be solved, the problems that the aluminum alloy structure of the ceiling cannot be effectively protected by the fine water mist which is uniformly distributed downwards, the spray head and a pipeline which is not described are arranged at the position, the aesthetic feeling and the metal texture of a regular grid of the ceiling of the aluminum alloy structure are not influenced, the special grid configuration of the aluminum alloy structure does not need rotary spraying, and then tangential momentum is wasted, and the like exist.
(6) Other related devices and configurations: application number: CN201720333657.9 discloses an aluminum alloy structural roof with a hollow tubular structure, wherein water circulates in the hollow tubular member and the node member to perform fireproof cooling. Application number: the cn20161045175. X introduces that the most commonly used aluminum alloy net shell beam member in the current engineering is an extruded solid i-shaped section beam, and is bolted with an upper node plate and a lower node plate, and a rectangular section hollow aluminum beam member (hollow tubular structure) which is locally and slightly adopted in the current engineering is also bolted between the upper node plate and the lower node plate, i.e. the node domain is a hollow domain, so that the current engineering can not form a water circulation condition even if a 'silica gel sealing ring' is adopted. Importantly, the aluminum alloy structure has the outstanding characteristics of light weight and 1/3 of the material density of a steel structure, the height of a beam rod piece in the current engineering is 175-550 mm, and if water circulates in the rod piece with the same equivalent section, the additional weight increase accelerates the collapse of the roof structure under fire, so that the design and practice are not feasible; application number: CN2018 1 0201918.0 discloses a water tank device arranged on a steel structure, which is characterized in that a transmission mechanism is used for adjusting a spray head connected to a spray pipe to uniformly spray water to the steel structure under fire so as to protect the safety of the structure under the fire; application number: CN201620117689.0 discloses a tank spray-washing structure with four nozzles in a plane by means of in-plane water spray boosting rotation.
Summarizing the above prior art, it can be found that:
(1) The fireproof protection technology and the product structure which simultaneously meet the metal texture appearance of aluminum alloy, the aesthetic feeling of dense triangular meshes of the indoor net shell structure ceiling and the curved surface modeling requirement of the net shell structure (the net shell is spherical, arched or free curved, and the meshes adopt equilateral or non-equilateral triangles) are not available.
(2) The prior art capable of solving part of problems does not have the pertinence of the requirements, so the feasibility is poor, and the method belongs to hard application.
(3) The design purpose of selecting an aluminum alloy reticulated shell structure roof for public buildings and the safety combination under the fire disaster of a protection structure can not be realized by utilizing the spray head products and the devices developed for solving other problems.
Disclosure of Invention
In view of the state of the art and the defects existing in the prior art, the invention provides an internal and external joint gunning strong fireproof plate type node structure and a use method thereof, which are suitable for the current engineering requirements and the design purpose of aluminum alloy net shell structure roofs for buildings, and have the integrated internal and external joint gunning strong fireproof plate type node structure for cooling the structure by means of plate type nodes with the same strength as spray injection inside and outside a plate type node domain under fire and the use method after the fire occurs.
The invention overcomes the defect that the prior art can not meet the requirements of obtaining dense triangular grids with aluminum alloy metal texture appearance and indoor net shell structure ceiling and adapting to curved surface modeling of the net shell structure in public buildings.
The invention can meet the requirements of architects on the metal texture appearance pursuit of aluminum alloy, does not influence the regular appearance of the triangular grid of the indoor ceiling, and simultaneously provides an integrated inner-outer joint gunning strong fireproof plate type node structure, which is suitable for being processed into plate type nodes with any common beam specifications in the current building engineering. The solution is simply not an accumulation of technical details of prior art solutions.
The telescopic composite spray head is hidden in a node hollow domain formed by an upper node disc, a lower node disc and an I-shaped section beam when not in use; when the device is used, under the action of water pressure, the cambered bottom shell is impacted by pressurized water, the inner slide pipe is driven to slide along the rectangular vertical groove II of the pipe orifice shrinkage ring arranged at the end part of the outer pipe, the lower node plate cover is propped up and then extends out below the lower node plate, water mist is horizontally ejected from a nozzle connected with the umbrella-shaped nozzle body and reversely inclined and ejected from a nozzle connected with the dish-shaped nozzle body, and the inner side surface of the chamfer I-beam formed by the upper flange and the lower flange of the chamfer connected with the rectangular web and the lower surface of the chamfer I-beam formed by the lower node plate and the bottom surface of the lower flange of the chamfer are simultaneously sprayed and protected, so that the heat insulation and the cooling of the whole plate-type node are realized. And can adapt to the change of net shell structure curved surface modeling, such as: the upper and lower node disks used in the cylindrical reticulated shell are slightly arched; the optimization of the grid stress or the difference of the included angles between adjacent beam members extending in all directions caused by the transition of the grid to the support position, and the like. When the fire-proof protective sleeve is used at a net shell support with a landing boundary, for saving, only 1/2 of the sleeve umbrella spray head body and the dish spray head body can be manufactured, namely, only 4 nozzles are reserved for half-plate type nodes at the support (the support is usually provided with a plate type node structure of four chamfer I-beams which are clamped and bolted by an upper half-node plate and a lower half-node plate and are bolted with a steel support) respectively, so that the fire-proof protective sleeve can be used for the inner and outer fire protection of the nodes. The problem of strength loss caused by the hole opening is solved by a simple method of slightly thickening when the lower node plate is selected. The lower node tray cover can be selected to be consistent with the color of the aluminum alloy, or other using functions and colors can be added according to the building requirement, and the trace of the fireproof protection product can not be noticed completely. Therefore, the hidden type integrated internal and external gunning reinforced fireproof plate type node structure and the use method thereof are provided.
The integrated internal and external gunning strong fireproof plate type node structure and the roof with the cylindrical surface, the spherical surface and the free curved surface net shell structure comprising the fireproof plate type nodes, which are obtained by the technical scheme, realize the regular requirements of buildings on metal texture and grid impression, simultaneously conform to the corrosion-resistant material characteristics of an aluminum alloy structure, realize dead angle-free fireproof protection of the proper regular net shell structure while using less water by means of a water mist technology, and have obvious social, economic and safety benefits. The invention provides a reference for the revision of related fireproof standards, the breaking of fireproof barriers in the process of popularizing the aluminum alloy net shell structure and the improvement of structural fireproof in the current aluminum alloy engineering.
The invention adopts the technical proposal for realizing the aim that: the inner-outer joint gunning reinforced fireproof plate type node structure comprises plate type nodes and a water supply pipe, wherein each plate type node comprises a node disc, bolts and a chamfer I-beam;
the node discs comprise an upper node disc and a lower node disc;
The chamfering I-beam comprises a chamfering upper flange, a rectangular web plate and a chamfering lower flange;
The chamfering ends of the six chamfering I-beams are arranged between the upper node plate and the lower node plate at intervals, the chamfering upper flanges of the six chamfering I-beams are fixed together with the upper node plate through a plurality of bolts, the chamfering lower flanges of the six chamfering I-beams are fixed together with the lower node plate through a plurality of bolts, and the other ends of the six chamfering I-beams extend out of the upper node plate and the lower node plate; the method is characterized in that: the device also comprises a composite spraying and lower node disc cover;
The center of the lower node disc is provided with a lower node disc hole;
The composite spray comprises a set of gasket groups, an inner sliding pipe, a set of outer pipes, a set of umbrella nozzle bodies, a dish-shaped nozzle body and twelve nozzles;
The gasket group comprises a gasket I and a gasket II;
the outer tube comprises an upper short tube and a lower long tube;
The lower end of the upper short pipe is connected with the small opening end of the hollow front cone pipe I of the umbrella sleeving spray head body, and the small opening end of the hollow front cone pipe II of the umbrella sleeving spray head body is connected with the upper end of the lower long pipe;
The gasket I is sleeved into the upper end of the hollow circular tube I and tightly abuts against the top end of the convex ridge, and the tube wall thickening ring is arranged on the gasket I and the hollow circular tube I and is connected with the hollow circular tube I in a centering manner;
the gasket II and the pipe orifice reducing ring are fixed together and sleeved into the lower end of the hollow round pipe I in sequence, and the convex ridge of the hollow round pipe I is respectively arranged in the rectangular vertical groove I of the gasket II and the rectangular vertical groove II of the pipe orifice reducing ring;
One end of the hollow round tube I, which is fixedly provided with a tube wall thickening ring, is integrally inserted from the lower end of the lower long tube, and slides to enable the tube wall thickening ring and a gasket I to enter the upper short tube, and a gasket II to enter the lower long tube, and then the tube orifice reducing ring is centered and fixed with the lower end of the lower long tube;
The six water outlets I on the hollow round tube II of the umbrella sleeving spray head body are respectively connected with a nozzle, the six water outlets II on the hollow front taper tube III of the dish-shaped spray head body are respectively connected with a nozzle, the water supply pipe is fixed at the included angle between the upper flange of a chamfer angle I-shaped beam of a plate type node and a rectangular web, the bent end is in threaded connection with the upper end of an upper short tube, and the upper short tube is rotationally adjusted, so that the axes of the six nozzles arranged on the umbrella sleeving spray head body are sequentially positioned on the vertical middle surface between the webs of two chamfer angles I-shaped Liang Juxing adjacent to the plate type node according to the arrangement position of the water outlets I;
The lower end of the hollow circular tube I is in threaded connection with a horizontal annular plate II of the dish-shaped spray head body, and the dish-shaped spray head body is rotationally adjusted, so that the axes of six nozzles arranged on the hollow positive taper tube III are sequentially coplanar with rectangular webs of six chamfering I-beams of the plate-type node according to the arrangement position of the water outlet II;
the lower node disc cover covers the lower node disc hole from the lower surface of the lower node disc;
the dish-shaped spray head body and the inner slide tube can touch the lower node disc cover and then extend out to the lower part of the lower node disc through a lower node disc hole of the lower node disc, and the lower annular surface of a gasket I at the upper end of the hollow circular tube I is tightly contacted with the upper annular surface of a gasket II in the lower long tube;
Or the dish-shaped spray head body and the inner slide tube can be accommodated in a hollow node area formed by the upper node plate, the lower node plate and six chamfer I-beams.
The application method of the internal and external joint gunning reinforced fireproof plate type node structure is characterized by comprising the following steps of: the method comprises the following steps:
Firstly, judging that fire disaster occurs;
Secondly, starting a pressurized water supply system for the water supply pipe, wherein water flows from the outer pipe to the dish-shaped spray head body through the inner slide pipe and impacts the cambered bottom shell;
under the action of reaction force, the dish-shaped spray head body drives the ridge of the inner slide tube to slide along the orifice shrinking ring;
the cambered bottom shell touches the lower node disc cover to enable the lower node disc cover to fall off;
the ridge of the inner slide tube continues to slide along the orifice reducing ring until the surface of the gasket I contacts with the surface of the gasket II;
At the moment, the water mist is sprayed out from twelve nozzles under full pressure, so that the inside and outside of the plate-type node are completely wrapped, and the whole of the plate-type node is insulated and cooled;
Thirdly, judging that the fire is extinguished, and continuously supplying pressurized water to the water supply pipe for 5-10 min to close the water supply system so as to ensure that the aluminum alloy component is cooled to room temperature;
Fourthly, after the water in the dish-shaped spray head body completely flows out, the dish-shaped spray head body is reversely pushed to drive the ridge of the inner slide tube to slide along the tube orifice shrinking ring until the inner slide tube is stored and reset;
And fifthly, covering the lower node disc cover on the lower node disc hole from the lower surface of the lower node disc again, and recovering the plate type node to an initial state.
The beneficial effects of the invention are as follows: the internal and external joint gunning strong fireproof plate type node structure provided by the invention overcomes the demands of public buildings on representing aluminum alloy metal texture and enjoying regular dense triangular grid aesthetic feeling of indoor ceilings while making up for poor fireproof performance of the aluminum alloy structure, has strong concealment in fireproof protection method, and can realize equal strength with the conventional plate type node structure by utilizing a water mist spray head, thereby being applicable to aluminum alloy plate type node structures with various beam heights (I-shaped section beams and hollow rectangular box beams) commonly used in the current engineering, and aluminum alloy net shell structures with different curved surface shapes, and particularly has the advantages of simple use method, easiness in maintenance and component replacement.
Through the rotatable adjustment connection of the bent end and the upper short pipe, the axes of the nozzles arranged at the six water outlets I of the umbrella sleeving nozzle body can be sequentially positioned on the vertical middle surface between two adjacent chamfering I-shaped Liang Juxing webs of the plate type node, and then the surface of the rectangular web and the inner surfaces of the chamfering upper flange and the chamfering lower flange connected with the surface of the rectangular web can be protected.
Through the rotatable adjustment connection of dish shower nozzle body and hollow pipe I, make the nozzle axis of installing in six apopores II of hollow positive taper pipe III, with the rectangular web coplane of six chamfer I-beams of plate type node in proper order, and then the during operation is sprayed along the central line of chamfer I-beam extension direction towards corresponding chamfer bottom flange surface after stretching out the lower node dish hole, realizes strengthening the purpose of protecting beam and node dish component towards the surface of fire source, guarantees that whole plate type node parcel is in water smoke.
In the same way, the arrangement of the convex ridge and the rectangular vertical groove II of the pipe orifice shrinkage ring is also used for preventing the dish-shaped spray head body from rotating in the process of extending, and the pipe orifice shrinkage ring has a certain height, so that the dish-shaped spray head body and the outer pipe are prevented from being different in axis in the process of extending.
Through the design of cambered surface drain pan, effectual increase bear the impact area that has pressed the coming water to smooth transition to the nozzle department that links to each other with apopore II has reduced pressure loss.
Through the design of packing ring group, have the flexible position of inner slide simultaneously and keep and flexible in-process water seal's effect, and under the bigger circumstances of water pressure packing ring I and packing ring II contact tighter, the sealed effect is better.
Through the design of hollow positive taper pipe III, realized after the installation nozzle to the surface spray water smoke of board formula node component orientation fire source provide the purpose of fire prevention protection, select the hollow positive taper pipe III of different cone angles according to the chamfer I-beam length that needs to protect, also the most possible high efficiency has utilized the water resource.
Through the design that lower node dish thickness is slightly greater than upper node dish, compensate and be used for opening the structural strength loss that lower node dish hole brought.
The conical angle of the hollow front conical pipe I is larger than that of the hollow front conical pipe II, and the connection part of the hollow front conical pipe II and the lower long pipe is in a sharp angle design, so that the purpose of distributing water volume of the umbrella-sleeved spray head body and the dish-shaped spray head body according to needs is realized.
The invention realizes the heat insulation and cooling protection of the hollow node domain formed by the node plates and the six chamfer I-beams and the triangular grid formed by the chamfer I-beams between the adjacent nodes, is suitable for various shapes and beam compass lattice aluminum alloy net shell structures which are required to solve the fire prevention problem of aluminum alloy plates, conforms to the general trend of the explosive construction of the aluminum alloy net shell structures, can be combined with the intellectualization and informatization of the current fire-fighting facilities, has simple and reliable use method, provides reference for the fire protection design of members with new structures and the fire prevention modification and the relevant standard modification of the reconstruction structure, has huge social and economic and public safety benefits, and is beneficial to improving the development level of the space structure in China.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is a partial structural relationship diagram of the present invention;
FIG. 4 is a cross-sectional view of portions A, B and C of the structure of FIG. 3;
FIG. 5 is a diagram of the operation of the present invention;
fig. 6 is a cut-away view of the portion of structure D of fig. 5.
Detailed Description
As shown in figures 1 to 6 of the drawings,
An internal and external joint gunning strong fireproof plate type node structure comprises a plate type node 1, a water supply pipe 2, a composite spray head 3 and a lower node tray cover 4.
The plate type node 1 comprises a node disc 1-1, a bolt 1-2 and a chamfer I-beam 1-3;
the node discs 1-1 comprise an upper node disc 1-1-1 and a lower node disc 1-1-2;
The center of the lower node disc 1-1-2 is provided with a lower node disc hole 1-1-2-1;
The chamfering I-beam 1-3 comprises a chamfering upper flange 1-3-1, a rectangular web plate 1-3-2 and a chamfering lower flange 1-3-3;
The composite spray head 3 comprises a set of gasket groups 3-1, an inner sliding tube 3-2, a set of outer tubes 3-3, a set of umbrella spray head body 3-4, a dish-shaped spray head body 3-5 and twelve spray nozzles 3-6;
The gasket group 3-1 comprises a gasket I3-1-1 and a gasket II 3-1-2 which are in a circular ring shape and have the same inner diameter and outer diameter, wherein the inner ring surface of the gasket II 3-1-2 is provided with a through-height rectangular vertical groove I3-1-2-1.
The inner slide tube 3-2 is composed of a hollow circular tube I3-2-1, a convex ridge 3-2-2 and a tube wall thickening ring 3-2-3, wherein the convex ridge 3-2-2 is arranged on the outer surface of the hollow circular tube I3-2-1, starts from one tail end and extends along the length direction of the tube, and the distance from the other tail end is equal to the height of the gasket I3-1-1, namely the top end of the convex ridge 3-2-2 is different from the upper end of the hollow circular tube I3-2-1 by the height of the gasket I3-1-1; the outer diameter of the hollow round tube I3-2-1 is equal to the inner diameter of the gasket I3-1-1, the inner diameter of the hollow round tube I3-2-1 is equal to the inner diameter of the pipe wall thickening ring 3-2-3, the outer diameter of the pipe wall thickening ring 3-2-3 is equal to the outer diameter of the gasket I3-1-1, and the thickness and the width of the convex ridge 3-2-2 are equal to those of the rectangular vertical groove I3-1-2-1;
The outer tube 3-3 comprises an upper short tube 3-3-1, a lower long tube 3-3-2 and a tube orifice reducing ring 3-3-3, wherein the inner diameter and the outer diameter of the upper short tube 3-3-1 and the lower long tube 3-3-2 are equal, the outer diameter of the lower long tube 3-3-2 and the outer diameter of the tube orifice reducing ring 3-3-3 are equal, the inner diameter of the tube orifice reducing ring 3-3 is equal to the outer diameter of the hollow round tube I3-2-1, and the inner ring surface is provided with a through rectangular vertical groove II 3-3-1;
the lengths of the upper short tube 3-3-1 and the lower long tube 3-3-2 are matched to ensure that the nozzles 3-6 which are installed in the six water outlet holes I3-4-2-1 of the umbrella sleeving nozzle body 3-4 after the whole assembly are positioned at the middle height of the rectangular web plate 1-3-2.
The umbrella sleeving nozzle body 3-4 comprises a hollow front cone I3-4-1, a hollow round tube II 3-4-2, a horizontal annular plate I3-4-3, a hollow front cone II 3-4-4, wherein the inner diameter of the small opening end of the hollow front cone I3-4-1 is equal to that of the upper short tube 3-3-1, the outer diameter of the large opening end is equal to that of the hollow round tube II 3-4-2 and the outer diameter of the horizontal annular plate I3-4-3, the inner diameter of the horizontal annular plate I3-4-3 is equal to that of the large opening end of the hollow front cone II 3-4-4, the inner diameter of the small opening end of the hollow front cone II 3-4-4 is equal to that of the lower long tube 3-3-2, the thicknesses of the hollow front cone I3-4-1, the hollow round tube II 3-4-2, the horizontal annular plate I3-4-3 and the hollow front cone II 3-4-4 are equal, and the thicknesses of the hollow front cone II 3-4-4 are sequentially welded in a centered manner;
The taper angle of the hollow positive taper pipe I3-4-1 is larger than that of the hollow positive taper pipe II 3-4-4, the connection part of the hollow positive taper pipe II 3-4-4 and the lower long pipe 3-3-2 is a sharp angle, namely the upper edge of the small opening end of the hollow positive taper pipe II 3-4-4 is a sharp angle.
Six water outlets I3-4-2-1 are arranged on the cross section of the middle height of the side wall of the hollow round tube II 3-4-2, and the arrangement position of each water outlet I3-4-2-1 ensures that the axis of a nozzle 3-6 connected with the water outlet I is sequentially positioned on the vertical middle plane between two rectangular webs 1-3-2 of the chamfer I-beam 1-3 adjacent to the plate type node 1.
The dish-shaped spray head body 3-5 consists of a horizontal annular plate II 3-5-1, a hollow positive taper pipe III 3-5-2 and a cambered bottom shell 3-5-3, wherein the inner diameter of the horizontal annular plate II 3-5-1 is equal to the inner diameter of the hollow round pipe I3-2-1, the outer diameter is larger than the outer diameter of a pipe orifice reducing ring 3-3-3 and is equal to the diameter of a small opening end of the hollow positive taper pipe III 3-5-2, the diameter of a large opening end of the hollow positive taper pipe III 3-5-2 is equal to the caliber of the cambered bottom shell 3-5-3, the thicknesses of the horizontal annular plate II 3-5-1, the hollow positive taper pipe III 3-5-2 and the cambered bottom shell 3-5-3 are equal, and the horizontal annular plate II, the hollow positive taper pipe III 3-5-2 and the cambered bottom shell 3-5-3 are sequentially welded and connected;
six water outlets II 3-5-2-1 are arranged on the cross section of the middle height of the conical wall of the hollow conical tube III 3-5-2, and the arrangement position of each water outlet II 3-5-2-1 ensures that the axis of a nozzle 3-6 connected with the water outlet II is coplanar with the rectangular webs 1-3-2 of the six chamfer I-beams 1-3 of the plate type node 1 in sequence.
The taper angle of the hollow positive taper pipe III 3-5-2 is determined according to the length of the chamfer I-beam 1-3 to be protected, and is generally 15-45 degrees.
The bent end 2-1 is vertically downward, and the central line coincides with the connecting line of the centers of the upper node disc 1-1-1 and the lower node disc 1-1-2.
The thickness of the lower node disc 1-1-2 is determined according to design requirements and must be greater than that of the upper node disc 1-1-1;
The size of the fog drops sprayed by the nozzles 3-6 meets the requirements of national standards on the particle size of water spray or fine water spray, namely the particle size of the fog drops is below 1.0 mm.
According to the positions of the precast bolt holes, the upper node plate 1-1-1 of the node plate 1-1 is fully centered with the chamfer upper flanges 1-3-1 bolt holes of the six chamfer I-beams 1-3, the lower node plate 1-1-2 of the node plate 1-1 is fully centered with the chamfer lower flanges 1-3-3 bolt holes of the six chamfer I-beams 1-3, the centering of the upper node plate 1-1 and the lower node plate 1-1-2 is ensured, each bolt 1-2 sequentially penetrates through the two precast bolt holes in the centering, and then each bolt 1-2 is sequentially fastened;
Penetrating a gasket I3-1-1 into one end of the hollow round tube I3-2-1, which is not covered by the ridge 3-2-2, centering and welding a pipe wall thickening ring 3-2-3 and the end of the hollow round tube I3-2-1, and tightly attaching the gasket I3-1-1 to the pipe wall thickening ring 3-2-3 by the tail end of the ridge 3-2-2;
The rectangular vertical groove I3-1-2-1 of a gasket II 3-1-2 and the rectangular vertical groove II 3-3-3-1 of a pipe orifice reducing ring 3-3 are aligned with the ridge 3-2-2 in sequence at one end of the ridge 3-2-2 of the hollow round pipe I3-2-1, and the gasket II 3-1-2 and the pipe orifice reducing ring 3-3-3 are integrated by bonding at the contact surface and then penetrate into the hollow round pipe I3-2-1;
the hollow round tube I3-2-1 is self-welded with one end of a tube wall thickening ring 3-2-3 and integrally inserted into the free end of a lower long tube 3-3-2, the tube wall thickening ring 3-2-3 and a gasket I3-1-1 enter an upper short tube 3-3-1, then the tube orifice reducing ring 3-3-3 and the free end of the lower long tube 3-3-2 are centered and welded, and a gasket II 3-1-2 enters the lower long tube 3-3-2;
Fixing a water supply pipe 2 at an included angle between a chamfer upper flange 1-3-1 of one chamfer I-beam 1-3 and a rectangular web plate 1-3-2 of a plate type node 1, enabling a bent end 2-1 to vertically downwards, enabling a central line of the bent end 2-1 to coincide with a connecting line between the centers of the upper node plate 1-1-1 and a lower node plate 1-1-2, enabling the bent end 2-1 to be in threaded connection with a free end of the upper short tube 3-3-1, and rotating and adjusting the upper short tube 3-3-1, so that axes of nozzles 3-6 installed in six water outlet holes I3-4-2-1 of a sleeve umbrella nozzle body are sequentially positioned on a vertical middle surface between two adjacent chamfer I-beams 1-3 rectangular web plates 1-3-2 of the plate type node 1 according to the arrangement position of the water outlet holes I3-4-2-1;
The inner ring of a horizontal annular plate II 3-5-1 of the dish-shaped spray head body 3-5 is in threaded connection with one end of a convex ridge 3-2-2 of a hollow round tube I3-2-1 to the bottom, and the dish-shaped spray head body 3-5 is rotated and adjusted, so that the axes of nozzles 3-6 arranged in six water outlet holes II 3-5-2-1 of a hollow conical tube III 3-5-2 are sequentially coplanar with rectangular webs 1-3-2 of six chamfer I-beams 1-3 of a plate type node 1 according to the arrangement positions of the water outlet holes II 3-5-2-1;
The dish-shaped spray head body 3-5 and the inner slide tube 3-2 are contained in a hollow node area formed by the upper node disc 1-1, the lower node disc 1-1-2 and six chamfer I-beams 1-3.
Covering the lower node disc holes 1-1-2-1 with the lower node disc cover 4 from the lower surface of the lower node disc 1-1-2;
further, the thickness of the lower node plate 1-1-2 is determined according to design requirements and must be greater than the thickness of the upper node plate 1-1-1;
further, the diameter of the lower node disc hole 1-1-2-1 is larger than the outer contour of the disc-shaped nozzle body 3-5;
Further, the gasket set 3-1 is an elastic sealing material;
further, the orifice reducing ring 3-3-3 should have a certain height;
further, the taper angle of the hollow positive taper pipe I3-4-1 is larger than that of the hollow positive taper pipe II 3-4-4;
further, the upper edge of the small opening end of the hollow positive taper pipe II 3-4-4 is a sharp angle;
the application method of the internal and external joint gunning reinforced fireproof plate type node structure comprises the following steps:
Firstly, judging that fire disaster occurs;
Secondly, starting a pressurized water supply system for the water supply pipe 2, wherein water flows from the outer pipe 3-3, enters the dish-shaped spray head body 3-5 through the inner slide pipe 3-2 and impacts the cambered bottom shell 3-5-3;
Under the action of reaction force, the dish-shaped spray head body 3-5 drives the convex ridge 3-2-2 of the inner slide tube 3-2 to slide along the orifice shrinkage ring 3-3-3;
the cambered surface bottom shell 3-5-3 touches the lower node disc cover 4 to enable the lower node disc cover to fall off;
The ridge 3-2-2 of the inner slide tube 3-2 continues to slide along the orifice reducing ring 3-3-3 until the surface of the washer I3-1-1 contacts the surface of the washer II 3-1-2;
at the moment, water mist is sprayed out from the twelve nozzles 3-6 under full pressure, so that the inside and outside of the plate-type node are completely wrapped, and the whole heat insulation and cooling of the plate-type node are realized;
Thirdly, judging that the fire is extinguished, and continuously supplying pressurized water to the water supply pipe 2 for 5-10 min to close the water supply system, so as to ensure that the aluminum alloy component is cooled to room temperature;
fourthly, after the water in the dish-shaped spray head body 3-5 completely flows out, the dish-shaped spray head body 3-5 is reversely pushed to drive the convex ridge 3-2-2 of the inner slide tube 3-2 to slide along the tube orifice shrinkage ring 3-3-3 until the storage and the reset are carried out;
And fifthly, covering the lower surface of the lower node disc 1-1-2 on the lower node disc hole 1-1-2-1 again by the lower node disc cover 4, and recovering the plate type node to an initial state.
Claims (10)
1. The utility model provides an interior external connection spouts strong fire prevention plate type node structure of mending, includes plate type node (1), delivery pipe (2), plate type node (1) include node dish (1-1), bolt 1-2, chamfer I-beam (1-3);
The node disc (1-1) comprises an upper node disc (1-1-1) and a lower node disc (1-1-2);
The chamfering I-beam (1-3) comprises a chamfering upper flange (1-3-1), a rectangular web (1-3-2) and a chamfering lower flange (1-3-3);
The chamfering ends of the six chamfering I-beams (1-3) are arranged between the upper node plate (1-1-1) and the lower node plate (1-1-2) at intervals, the chamfering upper flanges (1-3-1) of the six chamfering I-beams (1-3) are fixed with the upper node plate (1-1-1) through a plurality of bolts (1-2), the chamfering lower flanges (1-3-3) of the six chamfering I-beams (1-3) are fixed with the lower node plate (1-1-2) through a plurality of bolts (1-2), and the other ends of the six chamfering I-beams (1-3) extend out of the upper node plate (1-1-1) and the lower node plate (1-1-2);
the method is characterized in that: the device also comprises a composite spray head (3) and a lower node disc cover (4);
The center of the lower node disc (1-1-2) is provided with a lower node disc hole (1-1-2-1);
the composite spray head (3) comprises a set of gasket groups (3-1), an inner sliding pipe (3-2), a set of outer pipes (3-3), a set of umbrella-shaped spray head body (3-4), a dish-shaped spray head body (3-5) and twelve spray nozzles (3-6);
the gasket group (3-1) comprises a gasket I (3-1-1) and a gasket II (3-1-2);
The outer tube (3-3) comprises an upper short tube (3-3-1) and a lower long tube (3-3-2);
the lower end of the upper short pipe (3-3-1) is connected with the small opening end of the hollow front taper pipe I (3-4-1) of the umbrella sleeving nozzle body (3-4), and the small opening end of the hollow front taper pipe II (3-4-4) of the umbrella sleeving nozzle body (3-4) is connected with the upper end of the lower long pipe (3-3-2);
The gasket I (3-1-1) is sleeved into the upper end of the hollow circular tube I (3-2-1) and tightly pushes against the top end of the convex ridge (3-2-2), and the tube wall thickening ring (3-2-3) is arranged on the gasket I (3-1-1) and the hollow circular tube I (3-2-1) and is connected with the hollow circular tube I (3-2-1) in a centering way;
the gasket II (3-1-2) and the pipe orifice reducing ring (3-3-3) are fixed together and sleeved in the lower end of the hollow round pipe I (3-2-1) in sequence, and the convex ridge (3-2-2) of the hollow round pipe I (3-2-1) is respectively arranged in the rectangular vertical groove I (3-1-2-1) of the gasket II (3-1-2) and the rectangular vertical groove II (3-3-3-1) of the pipe orifice reducing ring (3-3-3);
One end of a hollow circular tube I (3-2-1) with a tube wall thickening ring (3-2-3) is integrally inserted from the lower end of a lower long tube (3-3-2), the tube wall thickening ring (3-2-3) and a gasket I (3-1-1) enter an upper short tube (3-3-1), a gasket II (3-1-2) enters the lower long tube (3-3-2), and then the tube orifice reducing ring (3-3-3) is centered and fixed with the lower end of the lower long tube (3-3-2);
The device comprises a hollow circular tube II (3-4-2) of an umbrella sleeving nozzle body (3-4), six water outlet holes I (3-4-2-1) on the hollow circular tube II (3-4-2) are respectively connected with a nozzle (3-6), the six water outlet holes II (3-5-2-1) on the hollow conical tube III (3-5-2) of the dish-shaped nozzle body (3-5) are respectively connected with a nozzle (3-6), a water supply pipe (2) is fixed at the included angle between the upper flange (1-3-1) of one chamfer angle I-shaped beam (1-3) of the plate-type node (1) and the rectangular web plate (1-3-2), the bent end (2-1) is in threaded connection with the upper end of the upper short tube (3-3-1), and the upper short tube (3-3-1) is adjusted in a rotating mode, so that the axes of the six nozzles (3-6) arranged on the umbrella sleeving nozzle body (3-4) are sequentially positioned between two adjacent rectangular I-shaped beams (1-3-1) of the plate-type node (1) according to the arrangement positions of the water outlet holes I (3-4-2-1);
The lower end of the hollow circular tube I (3-2-1) is in threaded connection with a horizontal annular plate II (3-5-1) of the disc-shaped spray head body (3-5), and the disc-shaped spray head body (3-5) is rotationally adjusted, so that the axes of six nozzles (3-6) arranged on the hollow positive taper tube III (3-5-2) are sequentially coplanar with rectangular webs (1-3-2) of six chamfering I-beams (1-3) of the plate-type node (1) according to the arrangement position of the water outlet II (3-5-2-1);
The lower node disc cover (4) covers the lower node disc hole (1-1-2-1) from the lower surface of the lower node disc (1-1-2);
The dish-shaped spray head body (3-5) and the inner slide tube (3-2) can touch the lower node disc cover (4) and then penetrate through the lower node disc hole (1-1-2-1) of the lower node disc (1-1-2) to extend out to the lower part of the lower node disc (1-1-2), and the lower annular surface of the gasket I (3-1-1) at the upper end of the hollow circular tube I (3-2-1) is tightly contacted with the upper annular surface of the gasket II (3-1-2) in the lower long tube (3-3-2);
Or the dish-shaped spray head body (3-5) together with the inner slide tube (3-2) can be accommodated in a hollow node area formed by the upper node disc (1-1-1), the lower node disc (1-1-2) and six chamfer I-beams (1-3).
2. The internal and external joint gunning refractory slab node structure according to claim 1, wherein: the gasket I (3-1-1) and the gasket II (3-1-2) are circular, have equal inner and outer diameters and are elastic sealing materials, wherein the inner annular surface of the gasket II (3-1-2) is provided with a through rectangular vertical groove I (3-1-2-1).
3. The internal and external joint gunning refractory slab node structure according to claim 1, wherein: the inner sliding tube (3-2) consists of a hollow circular tube I (3-2-1), a convex ridge (3-2-2) and a tube wall thickening ring (3-2-3), wherein the convex ridge (3-2-2) is arranged on the outer surface of the hollow circular tube I (3-2-1) and extends along the length direction of the tube, the top end of the convex ridge (3-2-2) is different from the upper end of the hollow circular tube I (3-2-1) by the height of a gasket I (3-1-1), and the tail end of the convex ridge (3-2-2) is level with the lower end of the hollow circular tube I (3-2-1); the outer diameter of the hollow round tube I (3-2-1) is equal to the inner diameter of the gasket I (3-1-1), the inner diameter of the hollow round tube I (3-2-1) is equal to the inner diameter of the tube wall thickening ring (3-2-3), the outer diameter of the tube wall thickening ring (3-2-3) is equal to the outer diameter of the gasket I (3-1-1), and the thickness and the width of the ridge (3-2-2) are equal to those of the rectangular vertical groove I (3-1-2-1).
4. The internal and external joint gunning refractory slab node structure according to claim 1, wherein: the outer tube (3-3) comprises an upper short tube (3-3-1), a lower long tube (3-3-2) and a tube orifice reducing ring (3-3-3), wherein the inner diameter and the outer diameter of the upper short tube (3-3-1) are equal to those of the lower long tube (3-3-2), the outer diameter of the lower long tube (3-3-2) is equal to that of the tube orifice reducing ring (3-3-3), the inner diameter is equal to that of a gasket II (3-1-2), the inner diameter of the tube orifice reducing ring (3-3-3) is equal to that of a hollow round tube I (3-2-1), and the inner ring surface is provided with a through rectangular vertical groove II (3-3-3-1);
the lengths of the upper short tube (3-3-1) and the lower long tube (3-3-2) are matched to ensure that the nozzles (3-6) which are installed in six water outlets I (3-4-2-1) of the umbrella sleeving nozzle body (3-4) after the whole assembly are positioned at the middle height of the rectangular web plate (1-3-2).
5. The internal and external joint gunning refractory slab node structure according to claim 1, wherein: the umbrella sleeving spray head body (3-4) comprises a hollow front taper pipe I (3-4-1), a hollow round pipe II (3-4-2) and a horizontal annular plate I (3-4-3), wherein the inner diameter of the small opening end of the hollow front taper pipe I (3-4-1) is equal to that of an upper short pipe (3-3-1), the outer diameter of the large opening end is equal to that of the hollow round pipe II (3-4-2) and the outer diameter of the horizontal annular plate I (3-4-3), the inner diameter of the horizontal annular plate I (3-4-3) is equal to that of the large opening end of the hollow front taper pipe II (3-4-4), the inner diameter of the small opening end of the hollow front taper pipe II (3-4-4) is equal to that of a lower long pipe (3-3-2), and the thicknesses of the hollow front taper pipe I (3-4-1), the hollow II (3-4-2), the horizontal annular plate I (3-4-3) and the hollow front taper pipe II (3-4-4) are sequentially welded and are equal to each other; the taper angle of the hollow positive taper pipe I (3-4-1) is larger than that of the hollow positive taper pipe II (3-4-4), and the upper edge of the small opening end of the hollow positive taper pipe II (3-4-4) is a sharp angle;
six water outlets I (3-4-2-1) are formed in the cross section of the middle height of the side wall of the hollow round tube II (3-4-2), and the arrangement position of each water outlet I (3-4-2-1) ensures that the axis of a nozzle (3-6) connected with the water outlet I is sequentially positioned on the vertical middle plane between two rectangular webs (1-3-2) of two chamfering I-beams (1-3) adjacent to the plate-type node (1).
6. The internal and external joint gunning refractory slab node structure according to claim 1, wherein: the dish-shaped spray head body (3-5) is composed of a horizontal annular plate II (3-5-1), a hollow front taper pipe III (3-5-2) and a cambered surface bottom shell (3-5-3), wherein the inner diameter of the horizontal annular plate II (3-5-1) is equal to the inner diameter of the hollow circular pipe I (3-2-1), the outer diameter is larger than the outer diameter of a pipe orifice reducing ring (3-3-3) and is equal to the diameter of a small opening end of the hollow front taper pipe III (3-5-2), the diameter of a large opening end of the hollow front taper pipe III (3-5-2) is equal to the caliber of the cambered surface bottom shell (3-5-3), and the thicknesses of the horizontal annular plate II (3-5-1), the hollow front taper pipe III (3-5-2) and the cambered surface bottom shell (3-5-3) are equal and are sequentially welded and connected;
Six water outlets II (3-5-2-1) are arranged on the cross section of the middle height position of the conical wall of the hollow positive conical tube III (3-5-2);
The arrangement position of each water outlet II (3-5-2-1) ensures that the axis of the nozzle (3-6) connected with the water outlet II is coplanar with the rectangular webs (1-3-2) of the six chamfer I-beams (1-3) of the plate type node (1) in sequence;
The taper angle of the hollow positive taper pipe III (3-5-2) is determined according to the length of the chamfer I-beam (1-3) to be protected, and is 15-45 degrees.
7. The internal and external joint gunning refractory slab node structure according to claim 1, wherein:
the elbow end (2-1) is vertically downward, and the central line coincides with the connecting line of the centers of the upper node disc (1-1-1) and the lower node disc (1-1-2).
8. The internal and external joint gunning refractory slab node structure according to claim 1, wherein: the thickness of the lower node plate (1-1-2) is determined according to design requirements and must be greater than the thickness of the upper node plate (1-1-1).
9. The internal and external joint gunning refractory slab node structure according to claim 1, wherein: the size of the fog drops sprayed by the nozzles (3-6) meets the requirements of national standards on the particle size of water spray or fine water mist, and the particle size of the fog drops is below 1.0 mm.
10. A method for using the internal and external joint gunning reinforced fireproof plate type node structure according to claim 1, which is characterized in that: the method comprises the following steps:
Firstly, judging that fire disaster occurs;
Secondly, starting a pressurized water supply system for the water supply pipe (2), wherein water flow enters the dish-shaped spray head body (3-5) from the outer pipe (3-3) through the inner slide pipe (3-2) and impacts the cambered bottom shell (3-5-3);
Under the action of reaction force, the dish-shaped spray head body (3-5) drives the convex ridge (3-2-2) of the inner slide tube (3-2) to slide along the tube orifice shrinkage ring (3-3-3);
The cambered bottom shell (3-5-3) touches the lower node disc cover (4) to enable the lower node disc cover to fall off;
The ridge (3-2-2) of the inner slide tube (3-2) continues to slide along the orifice reducing ring (3-3-3) until the surface of the gasket I (3-1-1) contacts with the surface of the gasket II (3-1-2);
At the moment, water mist is sprayed out from twelve nozzles (3-6) under full pressure, so that the inside and outside of the plate-type node are completely wrapped, and the whole of the plate-type node is insulated and cooled;
Thirdly, judging that the fire is extinguished, and continuously supplying pressurized water to the water supply pipe (2) for 5-10 min to close the water supply system so as to ensure that the aluminum alloy component is cooled to room temperature;
Fourthly, after the water in the dish-shaped spray head body (3-5) completely flows out, the dish-shaped spray head body (3-5) is reversely pushed to drive the convex ridge (3-2-2) of the inner slide tube (3-2) to slide along the tube orifice shrinkage ring (3-3-3) until the inner slide tube is stored and reset;
and fifthly, covering the lower node disc cover (4) on the lower node disc hole (1-1-2-1) from the lower surface of the lower node disc (1-1-2) again, and recovering the plate type node to an initial state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301527.3A CN111321818B (en) | 2020-04-16 | 2020-04-16 | Internal and external joint gunning reinforced fireproof plate type node structure and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010301527.3A CN111321818B (en) | 2020-04-16 | 2020-04-16 | Internal and external joint gunning reinforced fireproof plate type node structure and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111321818A CN111321818A (en) | 2020-06-23 |
| CN111321818B true CN111321818B (en) | 2024-08-23 |
Family
ID=71168117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010301527.3A Active CN111321818B (en) | 2020-04-16 | 2020-04-16 | Internal and external joint gunning reinforced fireproof plate type node structure and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111321818B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027307B (en) * | 2021-02-22 | 2022-07-12 | 平江天正铝业科技有限公司 | Push-pull type aluminum alloy door with fireproof performance |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212176153U (en) * | 2020-04-16 | 2020-12-18 | 应急管理部天津消防研究所 | Interior external connection spray-repair reinforced fireproof plate type node structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9381386B2 (en) * | 2006-06-27 | 2016-07-05 | Firebird Sprinkler Company Llc | Fire sprinkler with flue-penetrating non-circular spray pattern |
| CN106400984B (en) * | 2016-11-24 | 2018-10-02 | 公安部天津消防研究所 | Space structure enhancing plate-type control fire node structure |
| CN206823006U (en) * | 2017-03-31 | 2018-01-02 | 公安部四川消防研究所 | A kind of aluminium alloy structure roof system spraying protection system |
| CN110629874B (en) * | 2019-10-14 | 2025-01-17 | 镇江天锦钢结构有限公司 | Fireproof steel structure for building |
-
2020
- 2020-04-16 CN CN202010301527.3A patent/CN111321818B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212176153U (en) * | 2020-04-16 | 2020-12-18 | 应急管理部天津消防研究所 | Interior external connection spray-repair reinforced fireproof plate type node structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111321818A (en) | 2020-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111321817B (en) | Application method of internal spray type fireproof plate type node structure | |
| CN104399216B (en) | Fire-extinguishing swirling jet fine mist shower nozzle | |
| CN104784856B (en) | A kind of fire monitor head | |
| CN212078307U (en) | An inner spray type fireproof panel joint structure | |
| CN212176153U (en) | Interior external connection spray-repair reinforced fireproof plate type node structure | |
| CN206138618U (en) | Fire fighting spray head | |
| CN212176152U (en) | An external spray reinforced fire board joint structure | |
| CN102240428A (en) | Self-pushing and spraying water mist spray nozzle | |
| CN207085142U (en) | A kind of applicator for being installed on roof | |
| US20150217152A1 (en) | Fire protection device and method for fire protection of an industrial oil cooker | |
| CN111321818A (en) | A kind of internal and external spray reinforcement type fireproof panel joint structure and using method | |
| CN108744369B (en) | Fire water monitor | |
| CN204307248U (en) | A kind of fire extinguishing is with revolving jet water mist shower nozzle | |
| CN104941098A (en) | Side spraying type automatic water mist fire extinguishing device | |
| CN106621120B (en) | Cross-shaped fine mist fire-fighting cover system | |
| CN203750079U (en) | Suspended automatic fine water mist fire extinguishment device | |
| CN104958848A (en) | Centralized injection type automatic fine water mist fire extinguishing plant | |
| CN203469286U (en) | Side spraying type automatic dry powder fire extinguishing device | |
| CN2619905Y (en) | Fixed fire control cooling protector special for spherical pot and vertical storage tank | |
| CN114470589A (en) | Intelligent injection device for suspension type dry powder fire extinguisher | |
| CN104056739A (en) | High rod power-free rotary sprayer | |
| CN211158306U (en) | High-pressure water-preparation foam fire extinguisher capable of rotating angle on extension ladder | |
| CN212998098U (en) | Spraying fire-fighting system | |
| CN219128091U (en) | Special fire-extinguishing fine water mist spray head for ancient building | |
| CN108797708A (en) | A kind of anticollision closure fire hydrant |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |