CN111733977A - Intelligent fireproof system of water-cooled steel structure and fire resisting method thereof - Google Patents
Intelligent fireproof system of water-cooled steel structure and fire resisting method thereof Download PDFInfo
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- CN111733977A CN111733977A CN202010635056.XA CN202010635056A CN111733977A CN 111733977 A CN111733977 A CN 111733977A CN 202010635056 A CN202010635056 A CN 202010635056A CN 111733977 A CN111733977 A CN 111733977A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 152
- 239000010959 steel Substances 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 182
- 239000000498 cooling water Substances 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
- 238000010276 construction Methods 0.000 claims description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- 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
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0214—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for buildings or installations in fire storms
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
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- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- 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
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- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- 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
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Abstract
The invention discloses an intelligent fire protection system of a water-cooling steel structure and a fire protection method thereof, wherein the intelligent fire protection system comprises the following steps: the water collecting tank is provided with a water outlet and a water return port, and cooling water is arranged in the water collecting tank; the steel structure unit frame is provided with a water inlet and a water outlet; one end of the water outlet pipeline is communicated with the water outlet, and the other end of the water outlet pipeline is communicated with the water inlet; one end of the water return pipeline is communicated with the water outlet, and the other end of the water return pipeline is communicated with the water return port; the water pump is arranged on the water outlet pipeline so as to enable water in the water collecting tank to flow to the water inlet from the water outlet; and the regulating valve is arranged on the water outlet pipeline and is positioned between the water pump and the steel structure unit frame. According to the water-cooling steel structure intelligent fire protection system, the steel structure unit frame can be quickly cooled through circulating flow, so that the fire resistance of the steel structure unit frame and the stability of the structure can be improved.
Description
Technical Field
The invention relates to the technical field of steel structures, in particular to an intelligent fire protection system of a water-cooling steel structure and a fire protection method thereof.
Background
The steel structure has the advantages of high strength, light dead weight, good toughness, good plasticity, high reliability, good sealing performance, convenient construction, high manufacturing and mounting mechanization degree and the like, is widely applied to industrial plants, large-span structures and high-rise structures, and becomes one of the more common building structure forms at present.
It is known that steel materials have the disadvantages of heat resistance and fire resistance, which have been difficult to solve in engineering. When a fire disaster occurs, if the environmental temperature is less than or equal to 150 ℃, the performance of the steel is kept good, but when the temperature is increased to 450-600 ℃, the strength and the elastic modulus of the steel are rapidly reduced, and when the temperature is more than or equal to 600 ℃, the strength of the steel tends to zero. Therefore, for steel structures, especially for super high-rise steel structure buildings, the fire resistance of the steel structures directly determines the safety of the building structures.
In the related art, the fireproof coating is coated on the surface of a steel structure according to the fire resistance limit, but the fireproof coating has great weight and poor binding power, and is easy to fall off locally or wholly, so that the falling part of the fireproof coating deforms due to the rise of temperature when a fire disaster occurs, and the expected effect cannot be achieved.
Disclosure of Invention
The invention provides an intelligent fire protection system with a water-cooling steel structure, which has the advantages of good fire resistance effect and strong structural stability.
The invention also provides a fire resisting method of the water-cooling steel structure intelligent fire protection system.
According to the embodiment of the invention, the intelligent fire protection system with the water-cooling steel structure comprises: the water collecting tank is provided with a water outlet and a water return port, and cooling water is arranged in the water collecting tank; a steel structure unit frame having a water inlet and a water outlet; one end of the water outlet pipeline is communicated with the water outlet, and the other end of the water outlet pipeline is communicated with the water inlet; one end of the water return pipeline is communicated with the water outlet, and the other end of the water return pipeline is communicated with the water return port; the water pump is arranged on the water outlet pipeline so as to enable water in the water collecting tank to flow from the water outlet to the water inlet; and the regulating valve is arranged on the water outlet pipeline and is positioned between the water pump and the steel structure unit frame.
According to the water-cooling steel structure intelligent fireproof system provided by the embodiment of the invention, by arranging the water collecting tank, when the steel structure unit frame needs to be cooled, the regulating valve can be opened, the water pump is started, under the suction action of the water pump, cooling water in the water collecting tank can be converged into the steel structure unit frame through the water outlet pipeline in sequence, heat of the steel structure unit frame is absorbed through flow in the steel structure unit frame to realize cooling of the steel structure unit frame, and finally, the cooling water flows back into the water collecting tank through the water outlet pipeline and releases the heat, so that the steel structure unit frame can be rapidly cooled through circulating flow, and the fire resistance and the structural stability of the steel structure unit frame can be improved.
According to some embodiments of the invention, the water-cooled steel structure intelligent fire protection system further comprises: the control system is connected with the regulating valve to control the regulating valve to be opened or closed, and the control system is connected with the water pump to control the water pump to be started or stopped.
According to some embodiments of the invention, the steel structural unit frame comprises: the side columns are of a hollow structure and extend along a first direction, the side columns are spaced apart in the circumferential direction of the steel structure unit frame, the side columns comprise a first side column and a second side column which are arranged oppositely, one of the first side column and the second side column is provided with the water inlet, and the other of the first side column and the second side column is provided with the water outlet; the side beams are formed into a hollow structure, extend along a second direction or a third direction, the second direction is perpendicular to the first direction, the third direction is perpendicular to the first direction, the side beams are multiple, two adjacent side columns are connected and communicated through the side beams, two side beams are arranged between the two adjacent side columns, and the two side beams are spaced apart in the first direction; the middle columns are formed into hollow structures and extend along the first direction, the number of the middle columns is multiple, the middle columns are arranged between every two adjacent side columns, and two ends of each middle column are connected and communicated with the two side beams; the middle beam is of a hollow structure, extends along the second direction or the third direction, is arranged on the top wall of the steel structure unit frame, and is connected and communicated with the two opposite side beams through the middle beam; the secondary beam is formed into a hollow structure, extends along the second direction or the third direction, is arranged on the top wall of the steel structure unit frame, is connected and communicated with the two opposite edge beams through the secondary beam, and is arranged between the edge beams and the middle beam at intervals in parallel.
In some embodiments of the invention, the intermediate pillar has a first through hole through which the intermediate beam communicates with the intermediate pillar.
In some embodiments of the present invention, two opposite side walls of the middle beam are respectively provided with a second through hole, the secondary beams located at two sides of the middle beam are communicated with the middle beam through the two second through holes, a bottom wall of the middle beam is provided with a first stopper, and a top surface of the first stopper is higher than a bottom surface of the second through hole and lower than a top surface of the second through hole.
In some embodiments of the present invention, a first baffle is disposed at the top of the side column, the cross section of the side column is formed into a hollow quadrangle, the first baffle is disposed on a diagonal line of the quadrangle, two adjacent side walls of the side column on one side of the first baffle are respectively provided with a third through hole, and two side beams connected to the side column are respectively communicated with the side column through the two third through holes.
In some embodiments of the present invention, the side columns, the side beams, the middle column, the middle beam, and the secondary beam are circular steel pipes, square steel pipes, or steel pipes welded by two H-shaped steels.
The fire resisting method of the water-cooling steel structure intelligent fire protection system provided by the embodiment of the invention comprises the following steps: s1: opening the regulating valve; s2: and starting the water pump to enable the cooling water to circularly flow among the water collecting tank, the water outlet pipeline, the steel structure unit frame and the water return pipeline.
According to the fire resisting method of the water-cooling steel structure intelligent fire resisting system, the water collecting tank is arranged, when the steel structure unit frame needs to be cooled, the adjusting valve can be opened, the water pump is started, under the suction effect of the water pump, cooling water in the water collecting tank can be gathered into the steel structure unit frame through the water outlet pipeline in sequence, heat of the steel structure unit frame is absorbed through flowing in the steel structure unit frame, the steel structure unit frame is cooled, finally, the cooling water flows back into the water collecting tank through the water outlet pipeline, the heat is released, and therefore the steel structure unit frame can be cooled rapidly through circulating flowing, and the fire resisting capacity and the structural stability of the steel structure unit frame can be improved.
According to some embodiments of the invention, the intelligent fire protection system with the water-cooling steel structure comprises a sensor and a control system, the control system is in communication connection with the sensor, the sensor is arranged in an indoor space, when the sensor detects that a fire disaster happens, the sensor transmits a signal to the control system, and the control system controls the regulating valve to be opened and the water pump to be started.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a water-cooled steel structure intelligent fire protection system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a center post and a center sill of the water-cooled steel structure intelligent fire protection system according to an embodiment of the present invention;
FIG. 3 is a schematic view of a center sill and a sub sill of a water-cooled steel structure intelligent fire protection system according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial structure of a water-cooled steel structure intelligent fire protection system according to a first embodiment of the invention;
FIG. 5 is a schematic view of a partial structure of a water-cooled steel structure intelligent fireproof system according to a second embodiment of the present invention;
FIG. 6 is a schematic view of a partial structure of a water-cooled steel structure intelligent fireproof system according to a third embodiment of the invention;
fig. 7 is a schematic partial structure view of a water-cooled steel structure intelligent fire protection system according to a fourth embodiment of the invention.
Reference numerals:
the water-cooled steel-structured intelligent fire protection system 100,
a water collecting tank 1, a water outlet 11, a water return port 12,
the steel-structured unit frame 2 is,
the side post 21, the water inlet 211, the water outlet 212, the first baffle 213, the third through hole 214,
the side frame 22, the center pillar 23, the first through-hole 231,
the intermediate beam 24, the second through-hole 241, the first stopper 251,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.
A water-cooled steel structure smart fire protection system 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, the intelligent fire protection system 100 with a water-cooling steel structure according to the embodiment of the invention includes: the water collecting tank comprises a water collecting tank 1, a steel structure unit frame 2, a water outlet pipeline 3, a water return pipeline 4, a water pump 5 and a regulating valve 6.
Specifically, as shown in fig. 1, the water collecting tank 1 has a water outlet 11 and a water return port 12, and cooling water is provided in the water collecting tank 1. It can be understood that the temperature of the cooling water is relatively low, the cooling water can be discharged out of the water collecting tank 1 through the water outlet 11, and the cooling water can flow back into the water collecting tank 1 through the water return port 12. Specifically, in an example of the present invention, a temperature sensor is disposed in the water collecting tank 1, and when the temperature of the cooling water is higher than a set value, the cooling water with a lower temperature may be replenished into the water collecting tank 1, and a water level monitor may be disposed in the water collecting tank 1, and when the water level of the cooling water in the water collecting tank 1 is lower, the cooling water may be replenished into the water collecting tank 1.
As shown in fig. 1, the steel structure unit frame 2 has a water inlet 211 and a water outlet 212, one end of the water outlet pipe 3 communicates with the water outlet 11, the other end of the water outlet pipe 3 communicates with the water inlet 211, one end of the water return pipe 4 communicates with the water outlet 212, and the other end of the water return pipe 4 communicates with the water return port 12. It can be understood that the cooling water can flow into the steel structure unit frame 2 through the outlet pipe 3 and flow back to the water collecting tank 1 through the return water pipe 4, so that the circulating flow of the cooling water between the water collecting tank 1 and the steel structure unit frame 2 can be realized, and when the steel structure unit frame 2 is at a high temperature (for example, a fire disaster occurs), the cooling water with a lower temperature can absorb the heat of the steel structure unit frame 2 to realize the cooling of the steel structure unit frame 2, so that the structural stability of the steel structure unit frame 2 is ensured.
As shown in fig. 1, a water pump 5 is provided on the outlet pipe 3 to make the water in the collecting tank 1 flow from the outlet 11 to the inlet 211, a regulating valve 6 is provided on the outlet pipe 3, and the regulating valve 6 is located between the water pump 5 and the steel structure unit frame 2. When steel structure unit frame 2 is cooled down as required, adjusting valve 6 can be opened, and water pump 5 is started, under the suction effect of water pump 5, the cooling water in water collecting tank 1 can loop through outlet conduit 3 and converge into steel structure unit frame 2, the heat of steel structure unit frame 2 is absorbed through the flow in steel structure unit frame 2, in order to realize the cooling to steel structure unit frame 2, at last, flow back to water collecting tank 1 through outlet conduit 3, and release the heat, from this the circulation flow of the cooling water that can realize automaticly, thereby can promote steel structure unit frame 2's fire-resistant ability.
In the related art, in order to improve the fire resistance of the steel structure unit frame, the surface of the steel structure unit frame is wrapped with a fireproof plate or a fireproof brick, and the method occupies a large effective space and is complex in construction. And in this application, utilize simple part relatively, with the help of the circulation flow of cooling water, alright in order to realize the cooling to steel structural unit frame 2, and water-cooling steel construction intelligence fire protection system 100 occupation space is little, and the construction degree of difficulty is also relatively lower.
In addition, in the related art, a mode of directly spraying water indoors for cooling also exists, and the method has the advantages of investment saving and the defects of: the fire extinguishing capability is poor, and particularly when a large fire disaster occurs, the environmental temperature is rapidly increased, so that the surface temperature of a steel structure supporting beam and a steel structure column is greatly increased, and the steel structure supporting beam and the steel structure column can collapse in a short time due to structural instability. In addition, in the related art, water is filled in advance when the construction is carried out in the steel structure column and the beam, when a fire disaster happens, the heat is taken away by utilizing the latent heat of the gasification of saturated steam in a gasification cooling mode so as to maintain the stability of the steel structure frame, and the defects that the duration of the cooling of the steel structure frame is short, water is easy to leak, the water needs to be filled in advance, the static load of the structure is increased, and the investment is large. In the application, the cooling water circularly flows, and the heat of the steel structure unit frame 2 can be continuously taken away, so that the steel structure unit frame 2 is continuously cooled, and the cooling effect is more prominent.
According to the water-cooling steel structure intelligent fire protection system 100 provided by the embodiment of the invention, by arranging the water collecting tank 1, when the steel structure unit frame 2 needs to be cooled, the regulating valve 6 can be opened, the water pump 5 is started, under the suction action of the water pump 5, cooling water in the water collecting tank 1 can be gathered into the steel structure unit frame 2 through the water outlet pipeline 3 in sequence, heat of the steel structure unit frame 2 is absorbed through flowing in the steel structure unit frame 2 to realize cooling of the steel structure unit frame 2, and finally, the cooling water flows back into the water collecting tank 1 through the water outlet pipeline 3 and releases the heat, so that the steel structure unit frame 2 can be cooled rapidly through circulating flowing, and the fire resistance and the structural stability of the steel structure unit frame 2 can be improved.
According to some embodiments of the present invention, the water-cooled steel structure smart fire protection system 100 further includes: and the control system is connected with the regulating valve 6 to control the regulating valve 6 to be opened or closed, and the control system is connected with the water pump 5 to control the water pump 5 to be started or stopped. It can be understood that the control system can be used for automatically opening or closing the regulating valve 6 and also can be used for automatically starting or stopping the water pump 5, so that the automatic operation of the water-cooling steel structure intelligent fire protection system 100 can be realized, the corresponding time is saved, and the fire-resistant effect is improved.
According to some embodiments of the present invention, as shown in fig. 1, the steel structural unit frame 2 includes: the side columns 21 are of a hollow structure, the side columns 21 extend along a first direction, the side columns 21 are multiple, the side columns 21 are spaced in the circumferential direction of the steel structure unit frame 2, the side columns 21 comprise first side columns 21 and second side columns 21 which are arranged oppositely, one of the first side columns 21 and the second side columns 21 is provided with a water inlet 211, and the other of the first side columns 21 and the second side columns 21 is provided with a water outlet 212; the side beams 22 are formed into a hollow structure, the side beams 22 extend along a second direction or a third direction, the second direction is perpendicular to the first direction, the third direction is perpendicular to the first direction, the side beams 22 are multiple, two adjacent side columns 21 are connected and communicated through the side beams 22, two side beams 22 are arranged between two adjacent side columns 21, and the two side beams 22 are spaced apart in the first direction; the middle columns 23 are formed into a hollow structure, the middle columns 23 extend along the first direction, the number of the middle columns 23 is multiple, the middle column 23 is arranged between two adjacent side columns 21, and two ends of each middle column 23 are connected and communicated with the two side beams 22; the middle beam 24 is formed into a hollow structure, the middle beam 24 extends along the second direction or the third direction, the middle beam 24 is arranged on the top wall of the steel structure unit frame 2, and the two opposite side beams 22 are connected and communicated through the middle beam 24; the secondary beam 25 is formed in a hollow structure, the secondary beam 25 extends in the second direction or the third direction, the secondary beam 25 is provided on the top wall of the steel structural unit frame 2, the two opposing edge beams 22 are connected and communicated by the secondary beam 25, and the secondary beam 25 is spaced between the edge beam 22 and the intermediate beam 24 which are arranged in parallel therewith.
It can be understood that the side columns 21, the side beams 22, the middle columns 23, the middle beams 24 and the secondary beams 25 are all formed into a hollow structure, the side beams 22 are communicated with the side columns 21, and the middle columns 23, the middle beams 24 and the secondary beams 25 are all communicated with the side beams 22, so that a plurality of cooling units can be formed in the side columns 21, the side beams 22, the middle columns 23, the middle beams 24 and the secondary beams 25, so that cooling water can rapidly exchange heat with the steel structural unit frame 2, and the fire resistance and the structural stability of the steel structural unit frame 2 are further improved.
In some embodiments of the present invention, as shown in fig. 1 and 2, the intermediate pillar 23 has a first through hole 231, and the intermediate beam 24 communicates with the intermediate pillar 23 through the first through hole 231. Therefore, the complexity of the connecting structure of the intermediate beam 24 and the intermediate column 23 can be simplified, and the difficulty and the cost of processing and manufacturing can be reduced. Meanwhile, the connection between the middle beam 24 and the middle column 23 can increase the flow path of the cooling water, reduce the flow resistance of the cooling water, and improve the heat exchange effect between the cooling water and the steel structure unit frame 2.
In some embodiments of the present invention, as shown in fig. 1 and 3, two opposite side walls of the middle beam 24 are respectively provided with a second through hole 241, the secondary beams 25 located at two sides of the middle beam 24 are communicated with the middle beam 24 through the two second through holes 241, the bottom wall of the middle beam 24 is provided with a first stopper 251, and a top surface of the first stopper 251 is higher than a bottom surface of the second through hole 241 and lower than a top surface of the second through hole 241. Therefore, by means of the connection of the middle beam 24 and the secondary beam 25, the flow path of cooling water can be increased, the flow resistance of the cooling water is reduced, and the heat exchange effect of the cooling water and the steel structure unit frame 2 is improved. Meanwhile, through the arrangement of the first stop block 251, the collision resistance of the cooling water at the cross position can be reduced, so that the cooling water can flow in a layered manner, the heat exchange effect of the cooling water and the steel structure unit frame 2 is improved, and meanwhile, the energy consumption of the water pump 5 can be reduced.
In some embodiments of the present invention, as shown in fig. 1 and 4, a first baffle 213 is disposed at the top of the side pillar 21, the cross section of the side pillar 21 is formed as a hollow quadrangle, the first baffle 213 is disposed on a diagonal line of the quadrangle, two adjacent side walls of the side pillar 21 on one side of the first baffle 213 are respectively provided with a third through hole 214, and two side beams 22 connected to the side pillar 21 are respectively communicated with the side pillar 21 through the two third through holes 214. Therefore, the complexity of the connecting structure of the side column 21 and the side beam 22 can be simplified, and the difficulty and the cost of processing and manufacturing can be reduced.
Alternatively, as shown in FIG. 5, the edge posts 21 may communicate with two edge beams 22; alternatively, as shown in fig. 6, the side pillars 21 communicate with three side pillars 22; alternatively, as shown in fig. 7, the side posts 21 communicate with four side posts 22.
In some embodiments of the present invention, the edge columns 21, the edge beams 22, the middle columns 23, the middle beams 24, and the secondary beams 25 are round steel pipes, square steel pipes, or steel pipes welded by two H-shaped steels. From this, can select the concrete cast of side column 21, boundary beam 22, intermediate column 23, intermediate beam 24 and secondary beam 25 as required to can be suitable for the needs of different operating modes, and then promoted the application scope of water-cooling steel structure intelligence fire protection system 100.
A fire-fighting method according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1, a fire-resisting method of a water-cooled steel structure intelligent fire protection system 100 according to an embodiment of the present invention includes: s1: opening the regulating valve 6; s2: the water pump 5 is started to circulate the cooling water among the water collecting tank 1, the water outlet pipe 3, the steel structural unit frame 2 and the water return pipe 4.
For example, in an example of the present invention, when a fire occurs, the regulating valve 6 may be opened, the water pump 5 is started, and under the pumping action of the water pump 5, the cooling water in the water collecting tank 1 may sequentially flow through the water outlet pipe 3 and be collected into the steel structure unit frame 2, the heat of the steel structure unit frame 2 is absorbed by the flow in the steel structure unit frame 2 to achieve cooling of the steel structure unit frame 2, and finally, the cooling water flows back into the water collecting tank 1 through the water outlet pipe 3 and releases the heat, so that the steel structure unit frame 2 can be rapidly cooled through circulation flow, and the fire resistance and the structural stability of the steel structure unit frame 2 can be improved.
According to the fire resisting method of the water-cooling steel structure intelligent fire resisting system 100, by arranging the water collecting tank 1, when the steel structure unit frame 2 needs to be cooled, the adjusting valve 6 can be opened, the water pump 5 is started, under the suction action of the water pump 5, cooling water in the water collecting tank 1 can be gathered into the steel structure unit frame 2 through the water outlet pipeline 3 in sequence, heat of the steel structure unit frame 2 is absorbed through flowing in the steel structure unit frame 2, so that the cooling of the steel structure unit frame 2 is realized, and finally, the cooling water flows back into the water collecting tank 1 through the water outlet pipeline 3 and is released, so that the rapid cooling of the steel structure unit frame 2 can be realized through circulating flowing, and the fire resisting capability and the structural stability of the steel structure unit frame 2 can be improved.
According to some embodiments of the present invention, the intelligent fire protection system 100 with a water-cooled steel structure comprises a sensor and a control system, wherein the control system is in communication connection with the sensor, the sensor is arranged in an indoor space, when the sensor detects a fire, the sensor transmits a signal to the control system, and the control system controls the regulating valve 6 to be opened and the water pump 5 to be started.
It can be understood that the control system can be used for automatically opening or closing the regulating valve 6 and also can be used for automatically starting or stopping the water pump 5, so that the automatic operation of the water-cooling steel structure intelligent fire protection system 100 can be realized, the corresponding time is saved, and the fire-resistant effect is improved. For example, in one example of the invention, the sensor is a smoke sensor or a temperature sensor.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a water-cooling steel construction intelligence fire protection system which characterized in that includes:
the water collecting tank is provided with a water outlet and a water return port, and cooling water is arranged in the water collecting tank;
a steel structure unit frame having a water inlet and a water outlet;
one end of the water outlet pipeline is communicated with the water outlet, and the other end of the water outlet pipeline is communicated with the water inlet;
one end of the water return pipeline is communicated with the water outlet, and the other end of the water return pipeline is communicated with the water return port;
the water pump is arranged on the water outlet pipeline so as to enable water in the water collecting tank to flow from the water outlet to the water inlet;
and the regulating valve is arranged on the water outlet pipeline and is positioned between the water pump and the steel structure unit frame.
2. The water-cooled steel structure intelligent fire protection system of claim 1, further comprising: the control system is connected with the regulating valve to control the regulating valve to be opened or closed, and the control system is connected with the water pump to control the water pump to be started or stopped.
3. The water-cooled steel structure intelligent fire protection system of claim 1, wherein the steel structure unit frame comprises:
the side columns are of a hollow structure and extend along a first direction, the side columns are spaced apart in the circumferential direction of the steel structure unit frame, the side columns comprise a first side column and a second side column which are arranged oppositely, one of the first side column and the second side column is provided with the water inlet, and the other of the first side column and the second side column is provided with the water outlet;
the side beams are formed into a hollow structure, extend along a second direction or a third direction, the second direction is perpendicular to the first direction, the third direction is perpendicular to the first direction, the side beams are multiple, two adjacent side columns are connected and communicated through the side beams, two side beams are arranged between the two adjacent side columns, and the two side beams are spaced apart in the first direction;
the middle columns are formed into hollow structures and extend along the first direction, the number of the middle columns is multiple, the middle columns are arranged between every two adjacent side columns, and two ends of each middle column are connected and communicated with the two side beams;
the middle beam is of a hollow structure, extends along the second direction or the third direction, is arranged on the top wall of the steel structure unit frame, and is connected and communicated with the two opposite side beams through the middle beam;
the secondary beam is formed into a hollow structure, extends along the second direction or the third direction, is arranged on the top wall of the steel structure unit frame, is connected and communicated with the two opposite edge beams through the secondary beam, and is arranged between the edge beams and the middle beam at intervals in parallel.
4. The water-cooled steel structure intelligent fire protection system of claim 3, wherein the middle column is provided with a first through hole, and the middle beam is communicated with the middle column through the first through hole.
5. The intelligent water-cooling steel structure fire protection system according to claim 3, wherein two opposite side walls of the middle beam are respectively provided with a second through hole, the secondary beams positioned on two sides of the middle beam are communicated with the middle beam through the two second through holes, a first stop block is arranged on the bottom wall of the middle beam, and the top surface of the first stop block is higher than the bottom surface of the second through hole and lower than the top surface of the second through hole.
6. The intelligent water-cooling steel structure fire protection system according to claim 3, wherein a first baffle is arranged at the top of each side column, the cross section of each side column is formed into a hollow quadrangle, the first baffle is arranged on the diagonal line of the quadrangle, two adjacent side walls of each side column, which are positioned on one side of the first baffle, are respectively provided with a third through hole, and two side beams connected with the side columns are respectively communicated with the side columns through the two third through holes.
7. The intelligent water-cooling steel structure fireproof system according to claim 3, wherein the side columns, the side beams, the middle columns, the middle beams and the secondary beams are round steel pipes, square steel pipes or steel pipes formed by welding two H-shaped steels.
8. The fire-resistant method of the water-cooled steel structure intelligent fire protection system according to any one of claims 1 to 7, comprising:
s1: opening the regulating valve;
s2: and starting the water pump to enable the cooling water to circularly flow among the water collecting tank, the water outlet pipeline, the steel structure unit frame and the water return pipeline.
9. The fire fighting method of the water-cooling steel structure intelligent fire protection system according to claim 8, wherein the water-cooling steel structure intelligent fire protection system comprises a sensor and a control system, the control system is in communication connection with the sensor, the sensor is arranged in an indoor space, when the sensor detects a fire, the sensor transmits a signal to the control system, and the control system controls the regulating valve to be opened and the water pump to be started.
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| CN113502919A (en) * | 2021-07-20 | 2021-10-15 | 浙江宏超建设集团有限公司 | Beam column structure of steel structure |
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