CN111321818A - A kind of internal and external spray reinforcement type fireproof panel joint structure and using method - Google Patents

Abstract

The invention relates to an internal and external connection spray-repair strong fireproof plate type node structure and a using method thereof, which are used for judging that a fire disaster occurs; starting a pressure water supply system, enabling water flow to enter a disc-shaped spray head body from an outer pipe through an inner sliding pipe and impact an arc-shaped bottom shell, enabling the disc-shaped spray head body to drive convex ridges of the inner sliding pipe to slide along a pipe orifice reducing ring, enabling the arc-shaped bottom shell to touch a lower node plate cover to enable the arc-shaped bottom shell to fall off, enabling the convex ridges of the inner sliding pipe to continue to slide along the pipe orifice reducing ring until the surface of a gasket I is in contact with the surface of a gasket II, spraying water mist from twelve nozzles at full pressure, completely wrapping the plate type node inside and outside; judging that the fire is extinguished, closing the water supply system, reversely pushing the disc-shaped spray head body to drive the convex ridge of the inner slide pipe to slide along the pipe orifice reducing ring until the inner slide pipe is accommodated and reset; and covering the lower node disc cover into the lower node disc hole. The invention provides reference for the fireproof protection design of the components of the newly-built aluminum alloy latticed shell, the fireproof reconstruction during reconstruction and extension and the manufacture and revision of related standards, and has huge social, economic and public safety benefits.

Description

A kind of internal and external spray reinforcement type fireproof panel joint structure and using method

technical field

The invention relates to the field of fire protection of building structures, in particular to an internal and external spray-reinforced fire-proof panel-type node structure and a method for using it, and is a new type of metal building structure developed for an aluminum alloy reticulated shell, which is capable of relying on water mist to connect to panels under fire. The structure and fire protection integration of the node structure cooling structure and the internal and external joint spraying reinforcement fireproof panel joint structure and the use method after the fire occurs.

Background technique

In public buildings (sports venues, exhibition halls, theaters, botanical gardens), in order to pursue the expression of metallic appearance and the beauty of the dense triangular grid of indoor ceilings, architects increasingly choose aluminum alloy reticulated shells with undulating shapes. Roof load-bearing structures, such as Nanjing Niushou Mountain Foding Palace, Chengdu Coubertin Pentathlon Sports Event Center, etc.

For the currently widely used aluminum alloy reticulated shell node structure, the application number: CN201611045175.X introduces the connection relationship between the components. Good corrosion resistance and low maintenance costs have always been the factors for choosing aluminum alloy structures, but the poorer fire resistance than steel structures has always been an obstacle to the promotion of aluminum alloy structures.

Spraying fire retardant coating on the surface of aluminum alloy components (application number: CN201710501406.1) will affect the performance of metal texture, and there is currently no mature coating product on the market for the protection of aluminum alloy components, borrowing it for spraying steel structures The fire retardant coating may produce galvanic corrosion.

Using the technology proposed by the application number: CN201720334290.2, at least the underside of the ceiling will be messy, which violates the original intention of architectural design and does not meet the basic architectural aesthetic requirements.

Therefore, it is urgent to propose a method that does not destroy the metallic texture of the aluminum alloy structure, does not damage the aesthetics of the ceiling of the aluminum alloy reticulated shell structure, and adapts to the curved surface shape of the reticulated shell structure (the reticulated shell is spherical, arched or free-form surface, and the mesh is equilateral Or non-equilateral triangle, the node plate is no longer a flat plate, and the rods are no longer an evenly distributed 60° angle) integrated fire-resistant plate-type node structure, to make up for the relatively poor fire resistance of the aluminum alloy (reticulated shell) structure the goal of. There is no doubt that the use of water protection technology is suitable, especially the fogging protection technology can achieve the goal more economically and efficiently, which will inevitably involve the nozzle, a product that atomizes water.

The current overall technical overview is as follows:

(1) Nozzle products and structures for fire extinguishing: This type of nozzles has a large quantity and a wide range, but because "passive fire protection of building structures cannot be replaced by fire extinguishing" is a clear content and industry consensus, it is different from the purpose of the present invention. Special such as: Application No. CN201810466046.0 discloses a device that uses the recoil force of water jet to realize rotary fire extinguishing and improve fire extinguishing efficiency by opening inclined holes in the nozzle cylinder. Similar technologies also have application number: CN201320099018.2; Application number: CN201611045175.X announced a shear resistance-enhanced plate joint structure relying on the opening of the lower node plate to install fire control and fire extinguishing nozzles; A kind of concealed sprinkler in the ceiling developed by relying on the expansion of the telescopic pipe under the action of pressurized water, so that the fine water mist sprinkler can lift off the decorative cover and then put out the fire, and the sprinkler can be pushed back to its original position after use. And also cover with a decorative cover. In particular, it is mentioned that the telescopic tube is a multi-section hollow circular tube, and there is a sealing ring between every two sections, but no structural details are given;

(2) Nozzle device for dust removal: Application number: CN201710962239.0 discloses a device that uses wind to further atomize atomized water droplets into finer particles to mix with flue gas.

(3) Nozzle device for cooling industrial products: Application number: CN201822024334.9 discloses a device for arranging several existing nozzles to cool high-temperature castings. In order to achieve uniform cooling, the high-temperature castings are rotated in the device; Application number: CN201120451865.1 discloses a device for cooling steel pipes from different angles outside the steel pipes, especially for steel pipes with thicker walls, which can be uniformly cooled without cracks and poor mechanical properties. It can be seen that the problems addressed by this type of technology are different from those of the present invention, so there is no specific technology for reference.

(4) Nozzle device for heat insulation: Application No.: CN201320499669.0 discloses a nozzle device that uses fine water mist to protect vertical components such as glass curtain walls. Surface water spray; application number: CN201720334290.2 discloses a pipe fixed under an aluminum alloy roof, and high-pressure water impacts the inner surface of a conical deflector with an opening facing the roof to form a conical outer water jet to block the water. Technology of high temperature flue gas impacting aluminum alloy (arched) roof. Obviously, this technology ignores the current situation of the aluminum alloy roof in the current public buildings, all of which are the application number: CN201611045175.X, the current situation of the plate node lattice shell structure with triangular hollow in the middle of the grid, which only emphasizes the installation under the roof, not the protection. Which part of the aluminum alloy components is lacking in pertinence, and if applied, it will inevitably pay a very expensive cost; imagine that the water protection system pipeline is connected to the surface of the aluminum alloy roof facing the room, and the sprinkler is connected to the connection extending from the roof. The fire protection design attached to the surface of the aluminum alloy structure at the end of the pipe destroys the beauty of the aluminum alloy structure with the regular ceiling, and blocks the metal texture of the aluminum alloy structure, which has the same drawbacks as the fireproof coating; Water resources are relatively wasteful, and inside the formed conical water curtain, the aluminum alloy structure cannot touch the water, and the protective radius that the conical water curtain can extend outward is very limited, which will eventually scatter into water, especially for current projects. The aluminum alloy reticulated shell structure with the middle beam height in the range of 250mm~550mm will have a large area of the member surface (the web and the inner side of the upper and lower flanges connected to the web) that cannot be protected.

(5) Nozzle with both cooling and heat insulation functions: Application No.: CN201010298507.1 In order to solve the problems that the water mist nozzle cannot rotate automatically, the droplet size is large, the water is too much, and the spraying is uneven, a nozzle is provided. On the surface of the disc, depending on the angle between the nozzle and the end of the radius, the nozzle device provides rotational power to the tangential component of the water jet to the disc. The need for safe evacuation routes, the outer surface of objects detected by radar and infrared detection. It can be seen that when applied to the problem to be solved by the present invention, the aluminum alloy structure of the ceiling cannot be effectively protected by the fine water mist that is evenly distributed downward. Where can the sprinkler and its undescribed pipeline be installed so as not to affect the aluminum alloy structure ceiling The aesthetics and metallic texture of regular grids and the specific grid configuration of the aluminum alloy structure do not require rotational jetting and waste tangential momentum.

(6) Other related devices and structures: Application No. CN201720333657.9 discloses an aluminum alloy structural roof with a hollow tubular structure for beam members, and water is circulated inside the hollow tubular members and node members for fireproof cooling. Application No.: CN201611045175.X introduced that the most commonly used aluminum alloy reticulated shell beam components in current projects are extruded solid I-shaped section beams, which are bolted to the upper and lower node disks, and a small number of rectangular section hollow cores are used in the current project. The aluminum beam member (hollow tubular structure) is also bolted between the upper and lower node disks, that is, the node domain is a hollow domain, so even if the "silicone sealing ring" is used in the current project, the conditions for water circulation cannot be formed. Importantly, one of the outstanding features of the aluminum alloy structure is that it is light in weight, and the material density is 1/3 of that of the steel structure. The height of the beam member in the current project is between 175mm and 550mm. Internal circulating water, this extra weight will accelerate the collapse of the roof structure under fire, so it is not feasible in design and practice; Application No.: CN2018 1 0201918.0 Announces a water tank device arranged on a steel structure , under the fire, the sprinkler head connected to the sprinkler pipe is adjusted by the transmission mechanism to sprinkle water evenly on the steel structure to protect the safety of the structure under fire; Tank spray structure with four nozzles.

Summarizing the above existing technologies, it can be found that:

(1) There is no one that simultaneously meets the appearance of aluminum alloy metal texture, the aesthetics of the dense triangular mesh on the ceiling of the indoor reticulated shell structure, and adapts to the surface modeling requirements of the reticulated shell structure (the reticulated shell is spherical, arched or free-form surface, and the mesh adopts equilateral or non-equilateral triangles) fire protection technology and product construction.

(2) The existing technologies that can solve some problems do not have the pertinence of needs, so the feasibility is poor, and it is a rigid application.

(3) The use of sprinkler products and devices developed to solve other problems cannot achieve the combination of the design purpose of choosing aluminum alloy reticulated shell structure roofs for public buildings and the protection of structural safety under fire.

SUMMARY OF THE INVENTION

In view of the situation and the existing deficiencies of the prior art, the present invention provides an internal and external spray reinforcement type fireproof panel joint structure and a method of use, which is a kind of roof design purpose that meets the current engineering needs and selects the aluminum alloy reticulated shell structure for the building. , It has an integrated internal and external joint spray reinforcement fireproof panel joint structure that relies on the strength of the plate joints such as water mist spray inside and outside the plate joint area to cool the structure under fire, and the use method after the fire occurs.

The invention overcomes the deficiencies that the prior art can not meet the needs of the public buildings to obtain the appearance of the aluminum alloy metal texture, the aesthetic feeling of the dense triangular mesh of the ceiling of the indoor reticulated shell structure, and to meet the requirements of the curved surface shape of the reticulated shell structure.

The invention can satisfy the architect's pursuit of the appearance of the aluminum alloy metal texture without affecting the regular appearance of the triangular grid of the indoor ceiling, and at the same time provide an integrated internal and external spray reinforcement type fireproof panel node structure, which is suitable for processing into the current building Plate joints of any commonly used beam size in the project. This solution is not an accumulation of existing technical solutions and technical details at all.

When the retractable composite sprinkler is not in use, it is hidden in the node hollow area formed by the upper and lower node discs and the I-shaped section beam; when in use, under the action of water pressure, the curved bottom shell is impacted by the pressurized water, which drives the inner The sliding tube slides along the rectangular vertical groove II of the tube mouth narrowing ring set at the end of the outer tube, and the top falls off the node plate cover and then protrudes below the lower node plate. The nozzle connected to the dish-shaped nozzle body is ejected in a reverse inclination, and the inner side of the chamfered I-beam composed of the chamfered upper flange and the chamfered lower flange connected to the rectangular web plate, the lower node disk, and the chamfered lower wing The lower surface of the chamfered I-beam formed by the bottom surface of the edge is sprayed for protection at the same time, so as to achieve thermal insulation and cooling of the entire plate joint. And it can adapt to the changes in the surface shape of the reticulated shell structure, such as: the upper and lower node disks used in the cylindrical reticulated shell are slightly arched; the grid force optimization or grid transition to the support position caused by the adjacent beams extending in all directions The included angles between the components are different, etc. When used at the support of the reticulated shell where the boundary falls, in order to save, it is even possible to manufacture only 1/2 of the umbrella body and the dish-shaped sprinkler body, that is, only 4 nozzles are reserved for the half-plate nodes at the support (support). At the seat, two upper and lower half-node disks are usually used to clamp and bolt the plate-type node structure of four chamfered I-beams, and at the same time, they are bolted to the steel support for fire protection inside and outside the node area. When the lower node disc is selected, the strength loss caused by the opening is compensated by a simple method of slightly thickening. The lower node plate cover can be selected to be the same color as the aluminum alloy, or other functions and colors can be added according to the needs of the building, and the traces of fire protection products can not be noticed at all. Therefore, it is a brand-new to provide a concealed integrated internal and external joint spraying reinforced fireproof panel joint structure and using method.

The integrated internal and external spray reinforced fireproof panel joint structure obtained by applying this technical solution and the cylindrical surface, spherical surface and free-form surface reticulated shell structure roof including these fireproof panel nodes realize the building's regular metal texture and grid look and feel. At the same time, it conforms to the rust-resistant material characteristics of aluminum alloy structures. Relying on water mist technology, it can achieve no dead-end fire protection for reticulated shell structures of suitable specifications while reducing water consumption, and the social, economic and safety benefits are obvious. The invention provides reference for the formulation and revision of relevant fire protection standards, the removal of fire barriers in the process of popularizing the aluminum alloy reticulated shell structure, and the structural fire protection transformation in current aluminum alloy projects.

In order to achieve the above object, the technical scheme adopted in the present invention is: an internal and external spray reinforcement type fireproof panel joint structure, which includes a panel node and a water supply pipe, and the panel node includes a node disk, a bolt, and a chamfered I-beam;

The node disk includes an upper node disk and a lower node disk;

The chamfered I-beam includes a chamfered upper flange, a rectangular web, and a chamfered lower flange;

The chamfered ends of the six chamfered I-beams are arranged between the upper node plate and the lower node plate at intervals, and the chamfered upper flanges of the six chamfered I-beams and the upper node plate are fixed together by several bolts, The chamfered lower flange and the lower node plate of the six chamfered I-beams are fixed together by several bolts, and the other ends of the six chamfered I-beams protrude out of the upper node plate and the lower node plate; it is characterized in that: it also includes a composite Spray and lower the node tray cover;

The center of the lower node plate is provided with a lower node plate hole;

The compound spray includes a set of gaskets, an inner slide pipe, a set of outer pipes, an umbrella spray head body, a dish-shaped spray head body, and twelve nozzles;

The washer group includes a washer I and a washer II;

The outer tube includes an upper short tube and a lower long tube;

The lower end of the upper short pipe is connected with the small open end of the hollow positive cone tube I of the umbrella-covered sprinkler body, and the small open end of the hollow positive-conical pipe II of the umbrella-covered sprinkler body is connected with the upper end of the lower long pipe;

The washer I is sleeved into the upper end of the hollow circular tube I and pressed against the top of the raised ridge, and the tube wall thickening ring is placed on the washer I and the hollow circular tube I, and is centrally connected with the hollow circular tube I;

The washer II and the orifice reducing ring are fixed together, and are sequentially sleeved into the lower end of the hollow circular tube I, and the ridges of the hollow circular tube I are respectively placed in the rectangular vertical groove I of the washer II and the rectangular vertical groove II of the orifice reducing ring. middle;

Insert the end of the hollow round tube I fixed with the tube wall thickening ring from the lower end of the lower long tube as a whole, and slide the tube wall thickening ring and washer I into the upper short tube, and the washer II into the lower long tube. The shrinking ring is centered and fixed with the lower end of the lower long tube;

The six water outlet holes I on the hollow circular tube II of the umbrella sprinkler body are respectively connected with a nozzle, and the six water outlet holes II on the hollow positive cone tube III of the dish-shaped sprinkler body are respectively connected with a nozzle. The pipe is fixed at the angle between the chamfered upper flange of a chamfered I-beam and the rectangular web of the plate joint, and the elbow end is threadedly connected to the upper end of the upper short pipe, and the upper short pipe is rotated and adjusted so that it is installed on the umbrella. The axes of the six nozzles of the nozzle body are located in sequence on the vertical mid-plane between the rectangular webs of the two chamfered I-beams adjacent to the plate node according to the setting positions of the water outlet holes I;

The lower end of the hollow circular tube I is screwed with the horizontal ring plate II of the dish-shaped nozzle body, and the dish-shaped nozzle body is rotated and adjusted so that the axes of the six nozzles installed on the hollow positive cone tube III are in sequence with the setting positions of the water outlet holes II. The rectangular webs of the six chamfered I-beams of the plate joint are coplanar;

The lower node plate cover is covered on the hole of the lower node plate from the lower surface of the lower node plate;

The dish-shaped nozzle body and the inner sliding pipe can touch the lower node plate cover and then extend through the lower node plate hole of the lower node plate to the bottom of the lower node plate. The upper ring surface of the gasket II in the pipe is in close contact;

Or the dish-shaped sprinkler body together with the inner sliding pipe can be accommodated in the hollow node area formed by the upper node plate, the lower node plate and the six chamfered I-beams.

A method for using an internal and external spray-reinforced fire-proof panel joint structure, characterized in that the steps are as follows:

The first step is to determine that a fire has occurred;

The second step is to start the pressurized water supply system for the water supply pipe, and the water flows from the outer pipe through the inner sliding pipe into the dish-shaped nozzle body and impacts the arc bottom shell;

Under the action of the reaction force, the dish-shaped nozzle body drives the inner sliding tube ridge to slide along the tube mouth reducing ring;

The arc bottom case touches the lower node disk cover to make it fall off;

The ridge of the inner sliding tube continues to slide along the mouth reducing ring until the surface of the washer I contacts the surface of the washer II;

At this time, the water mist is sprayed out from the twelve nozzles at full pressure, completely wrapping the inside and outside of the plate node, and achieving thermal insulation and cooling as a whole;

The third step is to judge that the fire has been extinguished, and then continue to provide pressurized water for the water supply pipe for 5-10 minutes to close the water supply system to ensure that the aluminum alloy components have cooled to room temperature;

The fourth step, after the water in the dish-shaped nozzle body completely flows out, push the dish-shaped nozzle body in reverse to drive the inner sliding tube ridge to slide along the nozzle reducing ring until it is stored and reset;

The fifth step is to re-cover the lower node plate cover on the hole of the lower node plate from the lower surface of the lower node plate, and the plate node returns to the initial state.

The beneficial effects of the present invention are as follows: the joint structure of the fireproof plate type reinforced by the internal and external spraying of the present invention not only makes up for the poor fire resistance of the aluminum alloy structure, but also solves the problem of the public buildings reflecting the metal texture of the aluminum alloy and enjoying the regular and dense triangular grid of the indoor ceiling. The need for aesthetics, the fire protection method is highly concealed, the use of water mist nozzles has high reliability and low cost, and can achieve the same structural strength as conventional plate joints, which is suitable for various beam heights (I-section beams) commonly used in current projects. , hollow rectangular box girder) aluminum alloy plate node structure, and aluminum alloy reticulated shell structure with different surface shapes, especially the use method is simple, easy to maintain and replace parts.

Through the rotatable adjustment connection between the elbow end and the upper short pipe, the axes of the nozzles installed in the six water outlet holes I of the umbrella sprinkler body can be located in sequence between the rectangular webs of the two chamfered I-beams adjacent to the plate node. The vertical middle surface can further protect the surface of the rectangular web and the inner surfaces of the chamfered upper flange and the chamfered lower flange connected to it.

Through the rotatable and adjustable connection between the dish-shaped nozzle body and the hollow circular tube I, the axes of the nozzles installed in the six water outlet holes II of the hollow positive cone tube III are in turn coplanar with the rectangular webs of the six chamfered I-beams of the plate node. Then, during operation, after projecting out of the lower node plate hole, spray toward the outer surface of the corresponding chamfered lower flange along the centerline of the elongation direction of the chamfered I-beam to achieve the purpose of strengthening the protection beam and the surface of the node plate member facing the fire source. Ensure that the entire panel joint is wrapped in water mist.

Similarly, the setting of the convex ridge and the rectangular vertical groove II of the nozzle reducing ring is also to prevent the dish-shaped nozzle body from rotating itself during the extension process. The outer tube is not coaxial.

Through the design of the cambered bottom shell, the impact area of the pressurized water is effectively increased, and it smoothly transitions to the nozzle connected to the water outlet II, reducing the pressure loss.

Through the design of the gasket group, it has both the functions of maintaining the telescopic position of the inner slide pipe and water sealing during the expansion and contraction process, and in the case of the greater the water pressure, the tighter the contact between the gasket I and the gasket II, the better the sealing effect.

Through the design of the hollow positive cone tube III, the purpose of spraying water mist on the surface of the plate node member facing the fire source to provide fire protection after the nozzle is installed is realized. According to the length of the chamfered I-beam to be protected, hollow positive cones with different cone angles are selected. Pipe III also makes the most efficient use of water resources.

Through the design that the thickness of the lower node plate is slightly larger than that of the upper node plate, the structural strength loss caused by opening the lower node plate hole is compensated.

Through the design that the cone angle of the hollow positive cone tube I is larger than the cone angle of the hollow positive cone tube II, and the connection part between the hollow positive cone tube II and the lower long tube is a sharp angle, the water volume of the umbrella sprinkler body and the dish-shaped sprinkler body is realized. On-demand distribution purposes.

The invention realizes the heat insulation and cooling protection of the hollow node domain formed by the node disk and the six chamfered I-beams and the triangular grid formed by the chamfered I-beams between adjacent nodes, and is suitable for the need to solve the fire prevention of aluminum alloy plate joints in a targeted manner. The various shapes and beam specifications of the aluminum alloy reticulated shell structure in question conform to the general trend of the vigorous construction of aluminum alloy reticulated shell structures, and can also be combined with the current intelligence and informatization of fire protection facilities. The fire protection design of the components, the fire protection reconstruction of the renovated and expanded structure, and the formulation and revision of the relevant standards provide a reference, which has huge social, economic and public safety benefits, and is conducive to improving the development level of my country's spatial structure.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structure exploded view of the present invention;

Fig. 3 is the partial structure relation diagram of the present invention;

Fig. 4 is the cutaway view of part A, part B and part C of the structure of Fig. 3;

Fig. 5 is the working state diagram of the present invention;

FIG. 6 is a sectional view of part D of the structure of FIG. 5 .

Detailed ways

As shown in Figure 1 to Figure 6,

The utility model discloses a fire-proof panel-type node structure reinforced by internal and external spraying, comprising a panel-type node 1 , a water supply pipe 2 , a composite nozzle 3 , and a lower node disk cover 4 .

The plate node 1 includes a node disk 1-1, a bolt 1-2, and a chamfered I-beam 1-3;

The node disk 1-1 includes an upper node disk 1-1-1 and a lower node disk 1-1-2;

There is a lower node plate hole 1-1-2-1 in the center of the lower node plate 1-1-2;

The chamfered I-beam 1-3 includes a chamfered upper flange 1-3-1, a rectangular web 1-3-2, and a chamfered lower flange 1-3-3;

The composite sprinkler 3 includes a set of gaskets 3-1, an inner sliding pipe 3-2, a set of outer pipes 3-3, an umbrella sprinkler body 3-4, a dish-shaped sprinkler body 3-5, twelve Nozzle 3-6;

The washer group 3-1 includes washer I3-1-1 and washer II3-1-2, both of which are annular and have the same inner and outer diameters. The inner ring surface of washer II3-1-2 is provided with a full-height rectangular vertical. Slot I3-1-2-1.

The inner sliding 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, and the convex ridge 3-2-2 is set in the hollow. The outer surface of the circular tube I3-2-1 starts at one end and extends along the length of the tube at a distance from the other end equal to the height of the washer I3-1-1, that is, the top of the ridge 3-2-2 and the The upper end of the hollow tube I3-2-1 differs from the height of the washer I3-1-1; the outer diameter of the hollow tube I3-2-1 is equal to the inner diameter of the washer I3-1-1, and the hollow tube I3-2- The inner diameter of 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, the ridge 3-2-2 The thickness and width are equal to those of the rectangular vertical slot I3-1-2-1;

The outer tube 3-3 includes an upper short tube 3-3-1, a lower long tube 3-3-2 and a nozzle reducing ring 3-3-3, the upper short tube 3-3-1 and the lower long tube 3-3 -2 The inner and outer diameters are equal, the outer diameter of the lower long tube 3-3-2 is equal to the outer diameter of the orifice reduction ring 3-3-3, the inner diameter is equal to the outer diameter of the gasket II 3-1-2, the orifice reduction ring 3-3 The inner diameter of -3 is equal to the outer diameter of the hollow circular tube I3-2-1, and the inner ring surface is provided with a full-height rectangular vertical groove II3-3-3-1;

The lengths of the upper short pipe 3-3-1 and the lower long pipe 3-3-2 are matched so that the nozzles 3-6 installed on the umbrella nozzle body 3-4 after the overall assembly of the six water outlet holes I3-4-2-1 are located at At the mid-height of the rectangular web 1-3-2.

The umbrella sprinkler body 3-4 includes a hollow positive cone tube I3-4-1, a hollow circular tube II3-4-2, a horizontal ring plate I3-4-3, a hollow positive cone tube II3-4-4, a hollow positive cone tube The inner diameter of the small open end of I3-4-1 is equal to the inner diameter of the upper short tube 3-3-1, and the outer diameter of the large open end is equal to the outer diameter of the hollow tube II3-4-2 and the horizontal ring plate I3-4-3 , the inner diameter of the horizontal ring plate I3-4-3 is equal to the outer diameter of the large open end of the hollow positive tapered tube II3-4-4, and the inner diameter of the small open end of the hollow positive tapered tube II3-4-4 is the same as that of the lower long tube 3-3 The inner diameters of -2 are equal, the thickness of hollow positive tapered tube I3-4-1, hollow circular tube II3-4-2, horizontal ring plate I3-4-3, and hollow positive tapered tube II3-4-4 are equal. middle welding connection;

The cone angle of the hollow positive cone tube Ⅰ3-4-1 is larger than that of the hollow positive cone tube Ⅱ3-4-4, and the connection part of the hollow positive cone tube Ⅱ3-4-4 and the lower long tube 3-3-2 is a sharp angle , that is, the upper edge of the small open end of the hollow positive cone tube II3-4-4 is a sharp corner.

Six water outlet holes I3-4-2-1 are arranged on the cross-section at the height of the middle of the side wall of the hollow tube II 3-4-2, and the setting position of each water outlet hole I3-4-2-1 ensures that the nozzles 3-6 connected to it are arranged. The axis of the plate node 1 is located on the vertical mid-plane between the rectangular webs 1-3-2 of the two adjacent chamfered I-beams 1-3 of the plate node 1.

The dish-shaped sprinkler body 3-5 is composed of the horizontal ring plate II3-5-1, the hollow positive cone tube III3-5-2, and the arc bottom shell 3-5-3. The inner diameter of the horizontal ring plate II3-5-1 is the same as the hollow one. The inner diameter of the circular tube I3-2-1 is equal, and the outer diameter is larger than the outer diameter of the orifice reduction ring 3-3-3 and equal to the diameter of the small open end of the hollow positive tapered tube III3-5-2, the hollow positive tapered tube III3-5 The diameter of the large open end of -2 is equal to the diameter of the cambered bottom shell 3-5-3, the horizontal ring plate II3-5-1, the hollow positive cone The thicknesses are equal, and they are welded in sequence;

The hollow positive cone tube III3-5-2 is provided with six water outlet holes II3-5-2-1 on the cross section at the height of the middle of the cone wall. The axis of 6 is in turn coplanar with the rectangular webs 1-3-2 of the six chamfered I-beams 1-3 of the plate node 1.

The cone angle of the hollow positive cone tube III3-5-2 is determined according to the length of the chamfered I-beam 1-3 to be protected, generally between 15° and 45°.

The elbow end 2-1 is vertically downward, and the center line coincides with the line connecting the centers of the upper node plate 1-1-1 and the lower node plate 1-1-2.

The thickness of the lower node plate 1-1-2 is determined according to the design needs, and must be greater than the thickness of the upper node plate 1-1-1;

The size of the droplets sprayed by the nozzles 3-6 meets the requirements of the national standard for the particle size of water spray or fine water mist, that is, the droplet size is below 1.0mm.

According to the position of the prefabricated bolt holes, align the upper node plate 1-1-1 of the node plate 1-1 with the bolt holes 1-3-1 of the chamfered upper flanges 1-3-1 of the six chamfered I-beams 1-3. The lower node plate 1-1-2 of the node plate 1-1 and the chamfered lower flange 1-3-3 bolt holes of the six chamfered I-beams 1-3 are all aligned, and at the same time ensure that the upper node plate 1-1- 1 Align with the lower node plate 1-1-2, insert each bolt 1-2 through the two prefabricated bolt holes that have been centered in turn, and then tighten each bolt 1-2 in turn;

Insert a washer I3-1-1 into the end of the ridge 3-2-2 of the hollow tube I3-2-1 that is not at the bottom, and then connect a tube wall thickening ring 3-2-3 to the hollow tube I3-2 -1 This end is centered and welded, and the gasket I3-1-1 is supported by the end of the raised ridge 3-2-2 and closely adheres to the pipe wall thickening ring 3-2-3;

Place a rectangular vertical groove I3-1-2-1 of a washer II3-1-2, a nozzle reducing ring 3-3- The rectangular vertical groove II 3-3-3-1 of the Hollow circular tube I3-2-1;

Insert the self-welded end of the above-mentioned hollow circular tube I3-2-1 with the tube wall thickening ring 3-2-3 into the free end of the lower long tube 3-3-2, and make the tube wall thickening ring 3-2- 3. The gasket I3-1-1 enters the upper short pipe 3-3-1, and then weld the nozzle reducing ring 3-3-3 to the free end of the lower long pipe 3-3-2, and the gasket II3-1 -2 into the lower long tube 3-3-2;

Fix the water supply pipe 2 at the angle between the chamfered upper flange 1-3-1 of a chamfered I-beam 1-3 of the plate node 1 and the rectangular web 1-3-2, and make the elbow end 2-1 is vertically downward, the center line of the elbow end 2-1 coincides with the line connecting the centers of the upper node plate 1-1-1 and the lower node plate 1-1-2, and the elbow end 2-1 and the above The free end of the upper short pipe 3-3-1 is screwed and adjusted by turning and adjusting the upper short pipe 3-3-1, so that the nozzle 3- The axis of 6 is located on the vertical mid-plane between the two adjacent chamfered I-beams 1-3 and the rectangular webs 1-3-2 of the plate node 1 according to the setting positions of the water outlet holes I3-4-2-1;

Screw the inner ring of the horizontal ring plate II 3-5-1 of the dish-shaped sprinkler body 3-5 to the bottom end of the hollow tube I3-2-1 ridge 3-2-2 and rotate to adjust the dish-shaped sprinkler body 3-5 , so that the axis of the nozzle 3-6 installed in the six water outlet holes II3-5-2-1 of the hollow positive cone tube III3-5-2 is in sequence with the six plate nodes 1 according to the setting positions of the water outlet holes II3-5-2-1. The rectangular webs 1-3-2 of the chamfered I-beams 1-3 are coplanar;

The dish-shaped nozzle body 3-5 and the inner slide pipe 3-2 are accommodated in the hollow node area formed by the upper node plate 1-1-1, the lower node plate 1-1-2 and the six chamfered I-beams 1-3.

Cover the lower node plate cover 4 on the lower node plate hole 1-1-2-1 from the lower surface of the lower node plate 1-1-2;

Further, the thickness of the lower node plate 1-1-2 is determined according to the design requirements, and must be greater than the thickness of the upper node plate 1-1-1;

Further, the diameter of the lower node disk hole 1-1-2-1 is larger than the outer contour of the dish-shaped nozzle body 3-5;

Further, the gasket group 3-1 is an elastic sealing material;

Further, the nozzle reducing ring 3-3-3 should have a certain height;

Further, the cone angle of the hollow positive cone tube I3-4-1 is greater than the cone angle of the hollow positive cone tube II3-4-4;

Further, the upper edge of the small open end of the hollow positive cone tube II3-4-4 is a sharp corner;

A method for using an internal and external spray-reinforced fire-proof panel joint structure, the steps are as follows:

The first step is to determine that a fire has occurred;

The second step is to start the pressurized water supply system for the water supply pipe 2, and the water flows from the outer pipe 3-3 through the inner sliding pipe 3-2 into the dish-shaped nozzle body 3-5 and impacts the arc bottom shell 3-5-3;

Under the action of the reaction force, the dish-shaped nozzle body 3-5 drives the inner slide pipe 3-2 to slide along the ridge 3-2-2 of the nozzle reducing ring 3-3-3;

The arc bottom shell 3-5-3 touches the lower node disk cover 4 to make it fall off;

The inner slide tube 3-2, the ridge 3-2-2, continue to slide along the tube mouth reducing ring 3-3-3 until the surface of the washer I3-1-1 contacts the surface of the washer II3-1-2;

At this time, the water mist is sprayed out from the twelve nozzles 3-6 at full pressure, and completely wraps the inside and outside of the plate node to achieve thermal insulation and cooling as a whole;

The third step is to judge that the fire has been extinguished, and then continue to provide pressurized water for the water supply pipe 2 for 5-10 minutes to close the water supply system to ensure that the aluminum alloy components have cooled to room temperature;

The fourth step, after the water in the dish-shaped nozzle body 3-5 completely flows out, push the dish-shaped nozzle body 3-5 in reverse to drive the inner slide pipe 3-2, the ridge 3-2-2, and reduce the ring 3-3 along the nozzle. -3 Slide until the storage is reset;

The fifth step is to re-cover the lower node plate cover 4 from the lower surface of the lower node plate 1-1-2 on the lower node plate hole 1-1-2-1, and the plate node returns to the initial state.

Claims (10)

1. A reinforced fireproof plate type node structure adopting internal and external connection spraying comprises plate type nodes (1) and a water supply pipe (2), wherein each plate type node (1) comprises a node disc (1-1), bolts (1-2) and chamfer I-shaped beams (1-3);

the node disc (1-1) comprises an upper node disc (1-1-1) and a lower node disc (1-1-2);

the chamfer I-shaped beam (1-3) comprises a chamfer upper flange (1-3-1), a rectangular web (1-3-2) and a chamfer lower flange (1-3-3);

the chamfering ends of six chamfering I-beams (1-3) are arranged between an upper node disc (1-1-1) and a lower node disc (1-1-2) at intervals, chamfering upper flanges (1-3-1) of the six chamfering I-beams (1-3) are fixed with the upper node disc (1-1-1) through a plurality of bolts (1-2), chamfering lower flanges (1-3-3) of the six chamfering I-beams (1-3) are fixed with the lower node disc (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 disc (1-1-1) and the lower node disc (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 group (3-1), an inner sliding pipe (3-2), a set of outer pipe (3-3), a set of umbrella spray head body (3-4), a dish 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 pipe (3-3) comprises an upper short pipe (3-3-1) and a lower long pipe (3-3-2);

the lower end of the upper short pipe (3-3-1) is connected with the small open end of the hollow forward conical pipe I (3-4-1) of the umbrella-sleeved spray head body (3-4), and the small open end of the hollow forward conical pipe II (3-4-4) of the umbrella-sleeved spray head 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 at the upper end of the hollow circular tube I (3-2-1) and tightly props 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 manner;

the gasket II (3-1-2) and the pipe orifice reducing ring (3-3-3) are fixed together and are sequentially sleeved at the lower end of the hollow circular pipe I (3-2-1), and the convex ridge (3-2-2) of the hollow circular 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);

inserting the whole of one end of the hollow round pipe I (3-2-1) fixed with the pipe wall thickening ring (3-2-3) into the lower end of the lower long pipe (3-3-2), sliding to enable the pipe wall thickening ring (3-2-3) and the gasket I (3-1-1) to enter the upper short pipe (3-3-1), enabling the gasket II (3-1-2) to enter the lower long pipe (3-3-2), and centering and fixing the pipe orifice reducing ring (3-3-3) and the lower end of the lower long pipe (3-3-2);

the six water outlets I (3-4-2-1) on the hollow circular tube II (3-4-2) of the umbrella-sheathing nozzle body (3-4) are respectively connected with a nozzle (3-6), the six water outlets II (3-5-2-1) on the hollow forward taper tube III (3-5-2) of the dish-shaped nozzle body (3-5) are respectively connected with a nozzle (3-6), the water supply pipe (2) is fixed at the included angle between the chamfer upper flange (1-3-1) of a chamfer I-beam (1-3) of the plate-shaped joint (1) and the rectangular web (1-3-2), the chamfer 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 rotationally adjusted, the axes of six nozzles (3-6) arranged on the umbrella-sheathing nozzle body (3-4) are sequentially positioned on the vertical middle surface between two rectangular webs (1-3-2) of the two adjacent chamfer I-shaped beams (1-3) of the plate-type node (1) according to the arrangement position of the water outlet hole I (3-4-2-1);

the lower end of the hollow circular tube I (3-2-1) is in threaded connection with a horizontal ring plate II (3-5-1) of the dish-shaped spray head body (3-5), and the dish-shaped spray head body (3-5) is rotationally adjusted to enable the axes of six nozzles (3-6) arranged on the hollow forward conical tube III (3-5-2) to be coplanar with the rectangular webs (1-3-2) of the six chamfered I-beams (1-3) of the plate type node (1) according to the arrangement position of the water outlet hole 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 disc-shaped spray head body (3-5) and the inner sliding pipe (3-2) can touch the lower node disc cover (4) and then penetrate through a lower node disc hole (1-1-2-1) of the lower node disc (1-1-2) to extend to the lower part of the lower node disc (1-1-2), and the lower ring surface of a gasket I (3-1-1) at the upper end of the hollow circular pipe I (3-2-1) is tightly contacted with the upper ring surface of a gasket II (3-1-2) in the lower long pipe (3-3-2);

or the disc-shaped spray head body (3-5) and the inner sliding pipe (3-2) can be accommodated in a hollow node domain formed by the upper node disc (1-1-1), the lower node disc (1-1-2) and the six chamfer I-shaped beams (1-3).

2. The internal-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that: the gasket I (3-1-1) and the gasket II (3-1-2) are both annular, have the same inner and outer diameters and are elastic sealing materials, wherein a through rectangular vertical groove I (3-1-2-1) is formed in the inner annular surface of the gasket II (3-1-2).

3. The internal-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that: the inner sliding pipe (3-2) is composed of a hollow circular pipe I (3-2-1), a convex ridge (3-2-2) and a pipe wall thickening ring (3-2-3), the convex ridge (3-2-2) is arranged on the outer surface of the hollow circular pipe I (3-2-1) and extends along the length direction of the pipe, the top end of the convex ridge (3-2-2) and the upper end of the hollow circular pipe I (3-2-1) are different by the height of a gasket I (3-1-1), and the tail end of the convex ridge (3-2-2) is flush with the lower end of the hollow circular pipe I (3-2-1); the outer diameter of the hollow circular tube I (3-2-1) is equal to the inner diameter of the gasket I (3-1-1), the inner diameter of the hollow circular 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 convex ridge (3-2-2) are equal to those of the rectangular vertical groove I (3-1-2-1).

4. The internal-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that: the outer pipe (3-3) comprises an upper short pipe (3-3-1), a lower long pipe (3-3-2) and a pipe orifice reducing ring (3-3-3), the inner diameter of the upper short pipe (3-3-1) is equal to the outer diameter of the lower long pipe (3-3-2), the outer diameter of the lower long pipe (3-3-2) is equal to the outer diameter of the pipe orifice reducing ring (3-3-3), the inner diameter of the pipe orifice reducing ring (3-3-3) is equal to the outer diameter of the hollow circular pipe I (3-2-1), and a through-height rectangular vertical groove II (3-3-3-1) is arranged on the inner ring surface;

the lengths of the upper short pipe (3-3-1) and the lower long pipe (3-3-2) are matched, so that the nozzle (3-6) which is integrally assembled and then is arranged on the umbrella covering nozzle body (3-4) and six water outlet holes I (3-4-2-1) is positioned at the middle height of the rectangular web plate (1-3-2).

5. The internal-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that: the umbrella-sleeved spray head body (3-4) comprises a hollow forward conical pipe I (3-4-1), a hollow round pipe II (3-4-2), a horizontal annular plate I (3-4-3) and a hollow forward conical pipe II (3-4-4), wherein the inner diameter of the small opening end of the hollow forward conical pipe I (3-4-1) is equal to the inner diameter of the upper short pipe (3-3-1), the outer diameter of the large opening end is equal to the outer diameters of the hollow round pipe II (3-4-2) and the horizontal annular plate I (3-4-3), the inner diameter of the horizontal annular plate I (3-4-3) is equal to the outer diameter of the large opening end of the hollow forward conical pipe II (3-4-4), the inner diameter of the small opening end of the hollow forward conical pipe II (3-4-4) is equal to the inner diameter of the lower long pipe (3-3-2), the thicknesses of the hollow forward conical pipe I (3-4-1), the hollow round pipe II (3-4-2), the horizontal annular plate I (3-4-3) and the hollow forward conical pipe II (3-4-4) are equal, and the hollow forward conical pipe I (3-4-4) and the hollow forward conical pipe II (3-4-4) are sequentially connected in a centering welding manner; the conical angle of the hollow positive conical pipe I (3-4-1) is larger than that of the hollow positive conical pipe II (3-4-4), and the upper edge of the small opening end of the hollow positive conical pipe II (3-4-4) is a sharp corner;

six water outlet holes I (3-4-2-1) are formed in the cross section of the middle height of the side wall of the hollow circular tube II (3-4-2), and the arrangement position of each water outlet hole I (3-4-2-1) ensures that the axis of a nozzle (3-6) connected with the water outlet hole I is sequentially located on the vertical middle plane between two rectangular webs (1-3-2) of the two adjacent chamfer I-shaped beams (1-3) of the plate type joint (1).

6. The internal-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that: the disc-shaped spray head body (3-5) is composed of a horizontal ring plate II (3-5-1), a hollow positive conical pipe III (3-5-2) and an arc bottom shell (3-5-3), the inner diameter of the horizontal ring 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 the pipe orifice reducing ring (3-3-3) and equal to the diameter of the small opening end of the hollow positive conical pipe III (3-5-2), the diameter of the large opening end of the hollow positive conical pipe III (3-5-2) is equal to the caliber of the arc bottom shell (3-5-3), the thicknesses of the horizontal ring plate II (3-5-1), the hollow positive conical pipe III (3-5-2) and the arc bottom shell (3-5-3) are equal, and are welded and connected in sequence;

six water outlet holes II (3-5-2-1) are formed in the cross section of the middle height of the conical wall of the hollow forward conical pipe III (3-5-2);

the arrangement position of each water outlet hole II (3-5-2-1) ensures that the axis of a nozzle (3-6) connected with the water outlet hole II is coplanar with the rectangular web plates (1-3-2) of the six chamfered I-shaped 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-shaped beam (1-3) to be protected, and is generally between 15 degrees and 45 degrees.

7. The internal-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that:

the elbow end (2-1) is vertically downward, and the central line is superposed 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-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that: the thickness of the lower node disk (1-1-2) is determined according to design requirements and must be larger than that of the upper node disk (1-1-1).

9. The internal-external connection spray-reinforcing type fireproof plate type node structure according to claim 1, wherein the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized in that: the size of the fog drops sprayed by the nozzles (3-6) meets the requirement of national standard on the particle size of water spray or fine water mist, namely the particle size of the fog drops is below 1.0 mm.

10. The use method of the internal-external connection spray-reinforcing type fireproof plate type node structure is characterized by comprising the following steps: the method comprises the following steps:

step one, judging that a fire disaster occurs;

secondly, starting a pressure water supply system for the water supply pipe (2), wherein water flow enters the disc-shaped spray head body (3-5) from the outer pipe (3-3) through the inner sliding pipe (3-2) and impacts the cambered surface bottom shell (3-5-3);

under the action of a reaction force, the disc-shaped spray head body (3-5) drives the convex ridge (3-2-2) of the inner slide pipe (3-2) to slide along the pipe orifice reducing ring (3-3-3);

the cambered surface bottom shell (3-5-3) touches the lower node plate cover (4) to enable the lower node plate cover to fall off;

the convex ridge (3-2-2) of the inner sliding pipe (3-2) continues to slide along the pipe orifice reducing ring (3-3-3) until the surface of the gasket I (3-1-1) is contacted 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, and the plate type nodes are completely wrapped inside and outside to realize heat insulation and cooling of the whole body;

thirdly, judging that the fire is extinguished, continuously providing pressurized water for the water supply pipe (2) for 5-10 min to close a water supply system, and ensuring that the aluminum alloy component is cooled to the 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 pushed reversely to drive the convex ridge (3-2-2) of the inner slide pipe (3-2) to slide along the pipe orifice reducing ring (3-3-3) until the water is stored and reset;

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 enabling the plate-type node to recover to the initial state.

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