CN114508182B - Building fireproof steel structure - Google Patents

Building fireproof steel structure Download PDF

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Publication number
CN114508182B
CN114508182B CN202210190655.4A CN202210190655A CN114508182B CN 114508182 B CN114508182 B CN 114508182B CN 202210190655 A CN202210190655 A CN 202210190655A CN 114508182 B CN114508182 B CN 114508182B
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China
Prior art keywords
steel structure
water
main body
structure main
valve body
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CN114508182A (en
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宋忠可
李卓玲
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Guangdong Zhongxin Tiandun Coating Co ltd
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Guangdong Zhongxin Tiandun Coating Co ltd
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Publication of CN114508182A publication Critical patent/CN114508182A/en
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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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
    • 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
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
    • 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
    • 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
    • E04B2001/2466—Details of the elongated load-supporting parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108—Rainwater harvesting

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to the technical field of building steel structures, and discloses a building fireproof steel structure, which comprises a mounting substrate, wherein a main pipeline and a steel structure main body are arranged on the mounting substrate, a branch pipeline is arranged on the main pipeline, the main pipeline is communicated with an inner cavity of the mounting substrate through the branch pipeline, and connecting flanges are arranged at two ends of the main pipeline; a water storage tank is arranged in the steel structure main body; when fire disaster does not occur, the steel structure main body only stores a small amount of cooling water, and the steel structure main body is not damaged due to the fact that the steel structure main body is fully filled with water for a long time to rust and freeze. When a fire disaster occurs, the steel structure main body is filled with cooling water rapidly, heat is dredged and taken away, and the water level in the steel structure main body rises and is connected with the water spraying mechanism to spray water flow to the surface of the steel structure main body, so that a continuous fireproof water film is formed, and the fireproof performance of the steel structure main body is greatly improved.

Description

Building fireproof steel structure
Technical Field
The invention relates to the technical field of building steel structures, in particular to a building fireproof steel structure.
Background
Steel construction is one of the more common structural forms in modern construction engineering. Compared with a common reinforced concrete building, the steel structure building has the advantages of light weight, high mechanical strength and improved building load; single material, simple and convenient processing and high mechanization degree; simple construction, high construction speed, etc.
One of the biggest disadvantages of steel structures as building materials is the poor fire resistance. Although the steel is a nonflammable material, under the action of high temperature of fire, the mechanical properties such as yield strength, elastic modulus and the like of the steel can be reduced along with the temperature rise, and finally the bearing capacity is lost, so that the building collapses. Accordingly, various types of fire-resistant steel structures have been developed successively.
The existing building fireproof steel structure comprises two forms of a interception method and a dredging method. The principle of the trapping method is to intercept or block the transmission of heat flow generated by fire to a member, and specific embodiments include two modes of adding fireproof paint to the surface of a steel structure and spraying water flow to the surface of the steel structure in the case of fire. However, the fire-proof steel structure of the interception method has limited improvement of fire resistance and limited supporting time of the building in fire.
The principle of the dredging method is to dredge away the heat conducted to the steel member, and the dredging method adopts an implementation mode that the hollow sealed steel column is filled with cooling water and connected into a pipe network. However, the dredging method is difficult to implement, and the steel column is rusted and frozen after being filled with water for a long time, so that the stability of the steel structure is reduced, and two reagents, namely rust prevention and freezing, are required to be injected regularly.
Therefore, there is a need to develop a fire-resistant steel structure for construction that has strong fire resistance without affecting the stability of the steel structure.
Disclosure of Invention
The invention provides a building fireproof steel structure, which has the beneficial effects that the stability of the steel structure is not affected, water filling and water spraying are automatically implemented for fireproof when a fire disaster occurs, and the problems that the existing interception fireproof steel structure in the background art is limited in improvement of fireproof performance, the supporting time of a building in the fire disaster is limited, the implementation difficulty of a dredging fireproof steel structure is high, water is filled in a steel column for a long time, rust and freezing are generated, and the stability of the steel structure is reduced are solved.
The invention provides the following technical scheme: the utility model provides a building fire prevention steel construction, includes the installation base member, be provided with trunk line and steel construction main part on the installation base member, be provided with the lateral conduit on the trunk line, just the trunk line is linked together through the lateral conduit with the inner chamber of installation base member, the both ends of trunk line all are provided with flange;
the steel structure comprises a steel structure main body, and is characterized in that a water storage tank is arranged in the steel structure main body, a plurality of first communication holes are formed in the water storage tank, and the water storage tank is communicated with an inner cavity of the steel structure main body through the plurality of first communication holes;
a water filling mechanism is arranged in the mounting base body and used for filling cooling water into the water storage tank, and the water filling mechanism comprises a first water injection assembly and a second water injection assembly;
and the steel structure main body is also provided with a water spraying mechanism for spraying cooling water to the surface of the steel structure main body.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the first water injection assembly comprises a valve body, a valve core and a plurality of second communication holes;
the valve body slide set up in the installation base body, just the valve body with the trunk line with the water storage tank all communicates, the case slide set up in the valve body, a plurality of the second intercommunicating pore all set up in on the case, just the case pass through a plurality of the second intercommunicating pore with the inner chamber of valve body is linked together.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the first water injection assembly further comprises a fixed plate, a first sliding chute and a first reset spring;
the valve body is characterized in that the fixed plate is arranged in the valve body, the first sliding groove is formed in the fixed plate, the valve core is arranged in the first sliding groove in a sliding mode, the first reset spring is arranged in the first sliding groove, one end of the first reset spring is connected with the first sliding groove, and the other end of the first reset spring is connected with the valve core.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the first water injection assembly further comprises a second reset spring, the second reset spring is sleeved on the valve body, one end of the second reset spring is connected with the mounting base body, and the other end of the second reset spring is connected with the valve body;
the second water injection assembly comprises a clamping groove and a clamping block, the clamping groove is formed in the valve body, and the clamping block is clamped in the clamping groove.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the second water injection assembly further comprises a push plate, a second sliding chute, a rotating rod, a rotating plate and a connecting plate;
the push plate is arranged on the valve core, the second sliding groove is formed in the valve body, the push plate is arranged in the second sliding groove in a sliding manner, the rotating rod is rotatably arranged in the mounting base body, the rotating plate is arranged on the rotating rod, and the rotating plate is matched with the push plate;
the connecting plate is arranged in the installation base body, and two ends of the connecting plate are respectively and movably hinged to the clamping block and the rotating plate through hinge shafts.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the second water injection assembly is provided with two, and two the second water injection assembly is based on the axis symmetry setting of valve body.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the water spraying mechanism comprises a mounting groove, a shell and a plurality of water spraying holes;
the installation groove is formed in the steel structure main body, the shell is arranged in the installation groove, the shell is communicated with the inner cavity of the water storage tank, and the water spraying holes are formed in the shell.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the water spraying mechanism further comprises a water flow accelerator, a rotary groove and a plurality of connecting rods;
the water flow accelerator is arranged in the shell, a plurality of connecting rods are arranged on the water flow accelerator, the rotating groove is formed in the shell, and a plurality of connecting rods are arranged in the rotating groove in a sliding mode.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the water spraying mechanism is provided with a plurality of water spraying mechanisms, and the water spraying mechanisms are respectively arranged at the end faces of the steel structure main body.
As an alternative to the building fire-resistant steel structure according to the invention, wherein: the steel structure body is provided with a plurality of overflow holes, and an exhaust pipeline is arranged on the steel structure body.
The invention has the following beneficial effects:
1. when fire disaster does not occur, the steel structure main body only stores a small amount of cooling water, and the steel structure main body is not damaged due to the fact that the steel structure main body is fully filled with water for a long time to rust and freeze. When a fire disaster occurs, the steel structure main body is filled with cooling water rapidly, heat is dredged and taken away, and the water level in the steel structure main body rises and is connected with the water spraying mechanism to spray water flow to the surface of the steel structure main body, so that a continuous fireproof water film is formed, and the fireproof performance of the steel structure main body is greatly improved.
2. This building fire prevention steel construction is provided with the water storage tank in the steel construction main part, in the cooling water to the steel construction main part in supplementary cooling water can reentrant steel construction main part via the water storage tank to form constrictive water storage space between steel construction main part and water storage tank, this a small amount of cooling water can be heated the evaporation rapidly when the steel construction main part is heated, carries out rapid cooling. Compared with the traditional mode that cooling water is directly filled in the steel structure main body, the fireproof response speed is greatly improved.
3. When fire disaster does not occur, running water in the main pipeline connected with the building waterway pipe network system can supplement water quantity lost by normal evaporation into the steel structure main body through the first water injection assembly. When a fire disaster occurs, the second water injection component cuts off the transverse water flow in the main pipeline, so that the main pipeline injects the flowing water into the steel structure main body for quick replenishment.
4. This building fire prevention steel construction, when a plurality of fire prevention steel construction combination back, can form the rivers of intercommunication between steel construction main part and the steel construction main part, produce the circulation, rivers can overflow through a large amount of overflow holes when passing through upside crossbeam structure for crossbeam structure surface also is covered by rivers, reinforcing fire behavior.
Drawings
Fig. 1 is a schematic view of the overall structure of the fire-proof steel structure for construction according to the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention when several building fire-resistant steel structures are combined.
Fig. 3 is a schematic view of the overall explosion structure of the fire-proof steel structure for construction according to the present invention.
Fig. 4 is a schematic view of a partial explosion structure at a water filling mechanism of the present invention.
Fig. 5 is a schematic view of a partial explosion structure at the water spray mechanism of the present invention.
Fig. 6 is a schematic view of the internal structure of the fire-resistant steel structure for construction according to the present invention.
Fig. 7 is a partial enlarged view at a in fig. 6.
Fig. 8 is a partial enlarged view at B in fig. 6.
In the figure: 1. a mounting substrate; 2. a main pipe; 201. a branch pipe; 202. a connecting flange; 3. a steel structural body; 301. a water storage tank; 302. a first communication hole; 303. an overflow aperture; 304. an exhaust duct; 4. a water filling mechanism; 5. a first water injection assembly; 501. a valve body; 502. a valve core; 503. a second communication hole; 504. a fixing plate; 505. a first chute; 506. a first return spring; 507. a second return spring; 6. a second water injection assembly; 601. a clamping groove; 602. a clamping block; 603. a push plate; 604. a second chute; 605. a rotating rod; 606. a rotating plate; 607. a connecting plate; 7. a water spraying mechanism; 701. a mounting groove; 702. a housing; 703. a water spraying hole; 704. a water flow accelerator; 705. a connecting rod; 706. and (5) a rotary groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
In order to combine the advantages of the two existing fireproof steel structures of the dredging method and the intercepting method, so that the steel structure has extremely strong fireproof performance when a fire disaster occurs, and the inside of the steel structure cannot be filled with water for a long time to cause the problems of rust and freezing, an embodiment 1 is provided;
referring to fig. 1-8, the device comprises a mounting substrate 1, wherein a main pipeline 2 and a steel structure main body 3 are arranged on the mounting substrate 1, a branch pipeline 201 is arranged on the main pipeline 2, the main pipeline 2 is communicated with an inner cavity of the mounting substrate 1 through the branch pipeline 201, and connecting flanges 202 are arranged at two ends of the main pipeline 2;
a water storage tank 301 is arranged in the steel structure main body 3, a plurality of first communication holes 302 are formed in the water storage tank 301, and the water storage tank 301 is communicated with the inner cavity of the steel structure main body 3 through the plurality of first communication holes 302;
a water filling mechanism 4 is arranged in the mounting base body 1 and used for filling cooling water into the water storage tank 301, and the water filling mechanism 4 comprises a first water injection assembly 5 and a second water injection assembly 6;
the steel structure main body 3 is also provided with a water spraying mechanism 7 for spraying cooling water to the surface of the steel structure main body 3.
Wherein, installation base member 1, trunk line 2 and steel construction main part 3 are the component of burying in the building, install trunk line 2 in the installation base member 1, flange 202 is all installed at both ends about trunk line 2, connects a plurality of trunk lines 2 through flange 202, and a plurality of trunk lines 2 can communicate with the water supply network in the building.
The first water injection assembly 5 is used for slowly supplementing the water amount which is normally consumed and lost in the steel structure main body 3 through the main pipeline 2 when a fire disaster does not occur. The second water injection unit 6 is used for rapidly injecting a large amount of cooling water into the steel structure body 3 through the branch pipe 201 when a fire occurs.
The steel structure main body 3 is installed in the upper end of installing base member 1, and the water storage tank 301 is installed in the inside of steel structure main body 3, is waterproof structure, and the water storage tank 301 is through the first communication hole 302 that four tip all set up on its surface and the inner chamber intercommunication of steel structure main body 3, constitutes narrow water injection space between steel structure main body 3 and water storage tank 301.
When fire disaster does not occur, cooling water circulates for a long time in the main pipeline 2, only a small amount of water is injected into the steel structure main body 3, and rust inhibitor and antifreezing agent do not need to be added, and when the small amount of cooling water in the steel structure main body 3 is normally evaporated and lost, the first water injection assembly 5 is triggered at this time, the second water injection assembly 6 is not triggered, and the first water injection assembly 5 supplements a small amount of cooling water into the water storage tank 301 through the main pipeline 2 to maintain normal operation.
When a fire disaster occurs, the second water injection assembly 6 is triggered, the left and right communication flow direction of the main pipeline 2 is cut off, the right end opening of the main pipeline 2 is formed, the main pipeline 2 is injected into the steel structure main body 3 through the branch pipeline 201 and the water storage tank 301, and then the steel structure main body 3 is combined left and right to form a circulation, so that cooling water is rapidly supplemented into the steel structure main body 3, and the main pipeline is rapid in fire prevention.
In addition, the steel structure main body 3 is heated rapidly in the case of fire, at this time, a small amount of water stored between the steel structure main body 3 and the water storage tank 301 is heated and evaporated rapidly, and the cooling water is driven to form rapid water circulation in the steel structure main body 3 by the pressure provided by the water vapor.
Example 2
Example 2 is proposed for guiding the running water in the main pipe 2 into the water reservoir 301 and maintaining replenishment;
the present embodiment is a modified description based on embodiment 1, specifically referring to fig. 4 to 7, the first water injection assembly 5 includes a valve body 501, a valve core 502, and a plurality of second communication holes 503;
the valve body 501 is slidably arranged in the installation base body 1, the valve body 501 is communicated with the main pipeline 2 and the water storage tank 301, the valve core 502 is slidably arranged in the valve body 501, a plurality of second communication holes 503 are formed in the valve core 502, and the valve core 502 is communicated with the inner cavity of the valve body 501 through the plurality of second communication holes 503.
Wherein, valve body 501 slidable mounting is at the inner wall of installation base member 1, and case 502 slides along valve body 501 from top to bottom, and when case 502 slides to the bottommost side, case 502 blocks the lower extreme opening of valve body 501, and the water in the trunk line 2 can not pour into in the water storage tank 301 at this moment.
When the valve body 501 moves upwards, water in the main pipe 2 enters the inner cavity of the valve body 501 through four second communication holes 503 uniformly formed on the valve core 502, and then enters the water storage tank 301.
Example 3
To realize that the first water injection assembly 5 is automatically replenished according to the amount of water in the water reservoir 301, embodiment 3 is presented;
this embodiment is a modified description based on embodiment 2, specifically referring to fig. 4 to fig. 7, the first water injection assembly 5 further includes a fixing plate 504, a first chute 505, and a first return spring 506;
the fixed plate 504 is arranged in the valve body 501, the first chute 505 is arranged on the fixed plate 504, the valve core 502 is arranged in the first chute 505 in a sliding manner, the first return spring 506 is arranged in the first chute 505, one end of the first return spring 506 is connected with the first chute 505, and the other end of the first return spring 506 is connected with the valve core 502.
Wherein, the fixed plate 504 is fixed at the inner wall of the valve body 501, the first chute 505 is opened at the lower end of the fixed plate 504, and the valve core 502 slides up and down along the first chute 505 and is elastically connected with the upper inner wall of the fixed plate 504 through the first return spring 506.
When the fluid pressure of the main pipe 2 to the valve body 502 is balanced with the hydrostatic pressure of the water reservoir 301 to the valve body 502, the valve body 502 is in a state of blocking the lower end opening of the valve body 501.
When the water amount in the steel structure main body 3 drops to a certain degree, so that the fluid pressure of the main pipeline 2 on the valve core 502 and the hydrostatic pressure of the water storage tank 301 on the valve core 502 are different, the valve core 502 is pushed upwards.
And the communication parts among all the components in the first water injection assembly 5 are subjected to tight water leakage prevention treatment.
Example 4
In order to realize rapid water replenishment in the steel structure body 3 when the cooling water rate is insufficient due to rapid water level decrease in the steel structure body 3 during a fire disaster, example 4 is proposed;
the present embodiment is an improved description based on embodiment 1, specifically referring to fig. 4 to 7, the first water injection assembly 5 further includes a second return spring 507, the second return spring 507 is sleeved on the valve body 501, one end of the second return spring 507 is connected with the installation base 1, and the other end of the second return spring 507 is connected with the valve body 501;
the second water injection assembly 6 comprises a clamping groove 601 and a clamping block 602, the clamping groove 601 is formed in the valve body 501, and the clamping block 602 is clamped in the clamping groove 601.
Wherein the valve body 501 is elastically connected to the lower inner wall of the installation base 1 by a second return spring 507. During installation, the second return spring 507 is in a stretched state by clamping the clamping block 602 connected with the side wall of the installation base body 1 into the clamping groove 601 to fix the position of the valve body 501.
At this time, the main pipe 2 can only fill the water storage tank 301 through the valve body 501, and the water that is branched and filled into the installation base 1 by the branch pipe 201 cannot enter the water storage tank 301 due to the blockage of the valve body 501.
When the clamp block 602 is pulled out from the clamp groove 601, the valve body 501 is released from the fixation, and the valve body 501 moves downward under the pull of the second return spring 507 and contacts the bottom wall of the main pipe 2. On the one hand, the left and right communication flow direction of the main pipeline 2 is blocked, on the other hand, the channel between the inner cavity of the installation base body 1 and the water storage tank 301 is opened, so that the main pipeline 2 can rapidly inject cooling water into the water storage tank 301 through the branch pipeline 201.
Example 5
In order to enable the clip 602 to be automatically pulled out of the clip groove 601 in response to rapid drop of the water in the steel structural body 3 in the event of fire, embodiment 5 is proposed;
the present embodiment is an improved description based on embodiment 4, referring specifically to fig. 4-7, the second water injection assembly 6 further includes a push plate 603, a second chute 604, a rotating rod 605, a rotating plate 606, and a connecting plate 607;
the push plate 603 is arranged on the valve core 502, the second chute 604 is arranged on the valve body 501, the push plate 603 is arranged in the second chute 604 in a sliding manner, the rotary rod 605 is arranged in the installation base body 1 in a rotary manner, the rotary plate 606 is arranged on the rotary rod 605, and the rotary plate 606 is matched with the push plate 603;
the connecting plate 607 is arranged in the installation base body 1, and two ends of the connecting plate 607 are respectively and movably hinged on the clamping block 602 and the rotating plate 606 through hinge shafts.
Wherein, the two ends of the rotary rod 605 are rotatably installed on the front and rear inner walls of the installation base 1, and the push plate 603 moves up and down along with the valve core 502.
When the water content in the steel structure main body 3 drops normally, the displacement generated by the valve core 502 can not enable the push plate 603 to touch the rotating plate 606, when the water content in the steel structure main body 3 drops rapidly, the push plate 603 moves upwards along with the second communication hole 503 to stir the rotating plate 606 to rotate, and then the clamping block 602 is pulled out of the clamping groove 601 through the transmission of the connecting plate 607.
Example 6
To strengthen the fixing effect of the second water injection assembly 6 to the valve body 501, embodiment 6 is proposed;
the present embodiment is a modified illustration based on embodiment 5, specifically, referring to fig. 3-7, two second water injection assemblies 6 are provided, and the two second water injection assemblies 6 are symmetrically disposed based on the central axis of the valve body 501.
Wherein, the second water injection assembly 6 is provided with two and is symmetrically arranged on the valve body 501, so that the fixation stability of the valve body 501 can be enhanced.
Example 7
To further improve the fire resistance of the steel structural body 3 in the event of a fire, example 7 was proposed;
the present embodiment is a modified explanation based on embodiment 1, specifically referring to fig. 5 to 8, the water spraying mechanism 7 includes a mounting groove 701, a housing 702, and a plurality of water spraying holes 703;
the mounting groove 701 is formed in the steel structure main body 3, the shell 702 is arranged in the mounting groove 701, the shell 702 is communicated with the inner cavity of the water storage tank 301, and the water spraying holes 703 are formed in the shell 702.
Wherein, when the second water injection assembly 6 rapidly supplements cooling water in the water storage tank 301 to form circulation between the steel structure main body 3 and the steel structure main body 3, the water level in the water storage tank 301 rises, finally water is injected into the shell 702 through the water storage tank 301, and then water is sprayed to the surface of the steel structure main body 3 through a plurality of uniformly distributed water spraying holes 703 formed in the shell 702 in inclined planes to form a continuous water film, so as to extinguish fire and cool.
Example 8
To enhance the force of water jet from the water jet 703 and enhance the fire protection effect, example 8 is proposed;
the present embodiment is an improved description based on embodiment 7, specifically referring to fig. 5-8, the water spraying mechanism 7 further includes a water flow accelerator 704, a rotating groove 706, and a plurality of connecting rods 705;
the water flow accelerator 704 is disposed in the housing 702, the plurality of connecting rods 705 are disposed on the water flow accelerator 704, the rotating slot 706 is disposed in the housing 702, and the plurality of connecting rods 705 are slidably disposed in the rotating slot 706.
The water flow accelerator 704 is rotatably installed in the housing 702 through a plurality of connecting rods 705, and when water is injected into the housing 702 from the water storage tank 301, the water flow accelerator 704 is driven to rotate, so that the speed and impulse of the water flow are increased.
Example 9
Example 9 is presented so that the sprayed water flow covers four faces of the steel structural body 3;
the present embodiment is an improved description based on embodiment 8, specifically referring to fig. 1-3, a plurality of water spraying mechanisms 7 are provided, and a plurality of water spraying mechanisms 7 are respectively provided at a plurality of end surfaces of the steel structural body 3.
The water spraying mechanisms 7 are arranged in four and distributed on four end faces of the surface of the steel structure main body 3.
Example 10
Example 10 is proposed for discharging water vapor generated by the heated evaporation of cooling water in the steel structure body 3 and additionally supplementing a water source into the steel structure body 3;
the present embodiment is a modified description based on embodiment 1, specifically referring to fig. 1-3, a plurality of overflow holes 303 are formed in a steel structural body 3, and an exhaust pipe 304 is provided in the steel structural body 3.
Wherein, the steam is discharged through the exhaust pipe 304 at the upper end of the steel structure main body 3, and the overflow holes 303 play a role of overflowing water passing through the upper lateral channel in the steel structure main body 3, so that the upper end beam part of the steel structure main body 3 can be covered by water spraying.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims (6)

1. The utility model provides a building fire prevention steel construction, includes installation base member (1), its characterized in that: the installation base body (1) is provided with a main pipeline (2) and a steel structure main body (3), the main pipeline (2) is provided with a branch pipeline (201), the main pipeline (2) is communicated with the inner cavity of the installation base body (1) through the branch pipeline (201), and two ends of the main pipeline (2) are provided with connecting flanges (202);
a water storage tank (301) is arranged in the steel structure main body (3), a plurality of first communication holes (302) are formed in the water storage tank (301), and the water storage tank (301) is communicated with the inner cavity of the steel structure main body (3) through the plurality of first communication holes (302);
a water filling mechanism (4) is arranged in the mounting base body (1) and used for filling cooling water into the water storage tank (301), and the water filling mechanism (4) comprises a first water injection assembly (5) and a second water injection assembly (6);
the steel structure main body (3) is also provided with a water spraying mechanism (7) for spraying cooling water to the surface of the steel structure main body (3);
the first water injection assembly (5) comprises a valve body (501), a valve core (502) and a plurality of second communication holes (503);
the valve body (501) is arranged in the installation base body (1) in a sliding mode, the valve body (501) is communicated with the main pipeline (2) and the water storage tank (301), the valve core (502) is arranged in the valve body (501) in a sliding mode, a plurality of second communication holes (503) are formed in the valve core (502), and the valve core (502) is communicated with an inner cavity of the valve body (501) through the plurality of second communication holes (503);
the first water injection assembly (5) further comprises a fixed plate (504), a first sliding groove (505) and a first return spring (506);
the fixed plate (504) is arranged in the valve body (501), the first sliding groove (505) is formed in the fixed plate (504), the valve core (502) is arranged in the first sliding groove (505) in a sliding mode, the first return spring (506) is arranged in the first sliding groove (505), one end of the first return spring (506) is connected with the first sliding groove (505), and the other end of the first return spring (506) is connected with the valve core (502);
the first water injection assembly (5) further comprises a second reset spring (507), the second reset spring (507) is sleeved on the valve body (501), one end of the second reset spring (507) is connected with the installation base body (1), the other end of the second reset spring (507) is connected with the valve body (501), and the connection position of the second reset spring (507) and the valve body (501) is higher than the connection position of the second reset spring (507) and the installation base body (1);
the second water injection assembly (6) comprises a clamping groove (601) and a clamping block (602), the clamping groove (601) is formed in the valve body (501), and the clamping block (602) is clamped in the clamping groove (601);
the second water injection assembly (6) further comprises a push plate (603), a second sliding groove (604), a rotating rod (605), a rotating plate (606) and a connecting plate (607);
the push plate (603) is arranged on the valve core (502), the second sliding groove (604) is formed in the valve body (501), the push plate (603) is arranged in the second sliding groove (604) in a sliding mode, the rotating rod (605) is rotatably arranged in the mounting base body (1), the rotating plate (606) is arranged on the rotating rod (605), and the rotating plate (606) is matched with the push plate (603);
the connecting plate (607) is arranged in the installation base body (1), and two ends of the connecting plate (607) are respectively and movably hinged on the clamping block (602) and the rotating plate (606) through hinge shafts.
2. The architectural fire-resistant steel structure according to claim 1, wherein: the second water injection assemblies (6) are arranged in two, and the two second water injection assemblies (6) are symmetrically arranged based on the central axis of the valve body (501).
3. The architectural fire-resistant steel structure according to claim 1, wherein: the water spraying mechanism (7) comprises a mounting groove (701), a shell (702) and a plurality of water spraying holes (703);
the installation groove (701) is formed in the steel structure main body (3), the shell (702) is arranged in the installation groove (701), the shell (702) is communicated with the inner cavity of the water storage tank (301), and the water spraying holes (703) are formed in the shell (702).
4. A building fire resistant steel structure according to claim 3, wherein: the water spraying mechanism (7) further comprises a water flow accelerator (704), a rotary groove (706) and a plurality of connecting rods (705);
the water flow accelerator (704) is arranged in the shell (702), the connecting rods (705) are all arranged on the water flow accelerator (704), the rotating groove (706) is formed in the shell (702), and the connecting rods (705) are all arranged in the rotating groove (706) in a sliding mode.
5. The architectural fire-resistant steel structure according to claim 4, wherein: the water spraying mechanisms (7) are arranged in a plurality, and the water spraying mechanisms (7) are respectively arranged at the end faces of the steel structure main body (3).
6. The architectural fire-resistant steel structure according to claim 1, wherein: a plurality of overflow holes (303) are formed in the steel structure main body (3), and an exhaust pipeline (304) is arranged on the steel structure main body (3).
CN202210190655.4A 2022-03-01 2022-03-01 Building fireproof steel structure Active CN114508182B (en)

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CN203834716U (en) * 2014-05-05 2014-09-17 武汉钢铁(集团)公司 Fireproof steel structure unit and system for building
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CN207796132U (en) * 2018-01-16 2018-08-31 利兴凯（北京）能源系统技术有限公司 A kind of pipeline valve of adjustable flow pressure
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CN113374102A (en) * 2021-05-18 2021-09-10 徐州腾鲁重工科技有限公司 Building fire prevention steel construction
CN215594377U (en) * 2021-08-21 2022-01-21 惠州市鸿泰建筑工程有限公司 Fireproof steel structure of green building
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