CN114137147A - Fire-resistant component fire resistance detection device - Google Patents
Fire-resistant component fire resistance detection device Download PDFInfo
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- CN114137147A CN114137147A CN202111457797.4A CN202111457797A CN114137147A CN 114137147 A CN114137147 A CN 114137147A CN 202111457797 A CN202111457797 A CN 202111457797A CN 114137147 A CN114137147 A CN 114137147A
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- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
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Abstract
The invention relates to the technical field of member fire resistance tests, in particular to a fire resistance member fire resistance detection device which comprises a test chamber, wherein the test chamber consists of side plates in four directions and a back plate in the middle, a plurality of fire nozzles which do circular motion are arranged in the test chamber, and a plurality of fixing assemblies used for fixing tested pieces are movably arranged on the back plate, so that the tested pieces in various shapes can be positioned and supported. According to the invention, the movable arrangement of the flame-throwing nozzle can arrange the flame-throwing nozzle at a specific position around a tested piece according to actual test requirements, so that the requirement of heating the tested piece with a special structure is met, and the design of the inner circle and the outer circle of the movable groove of the flame-throwing nozzle can increase the number of the flame-throwing nozzles to a certain extent, and can adjust the heating temperature of the tested piece by adjusting the distance between the flame-throwing nozzle and the tested piece, so that the use is safe and reliable.
Description
Technical Field
The invention relates to the technical field of member fire resistance tests, in particular to a device for detecting the fire resistance of a fire-resistant member.
Background
With the continuous development of the building industry and various novel building materials, the importance of the fire resistance of building components is more and more outstanding, at present, the fire resistance detection of the building components is usually realized by carrying out a corresponding fire resistance test in a fire resistance test furnace, the fire resistance test of the building components needs to simulate a fire environment in the fire resistance test furnace according to the requirements of temperature and pressure in the national standard GB/T9978.1-2008 'fire resistance test method for building components', and the fire resistance of a test piece is judged by analyzing indexes such as integrity, heat insulation and the like.
In the prior art, a building component is generally subjected to a fire resistance test by using a fire resistance test furnace, a conventional fire resistance test furnace is generally formed in a masonry mode, so that the position is fixed, the position of a fire nozzle in the fire resistance test furnace is also fixed, the position cannot be adjusted according to the condition of a tested piece, and the fire conditions of all the building components are different, for example, two sides and three sides of a cross beam are subjected to fire, and a column is subjected to fire in all vertical planes.
Disclosure of Invention
In order to overcome the above-mentioned problems, an object of the present invention is to provide a fire resistance detection device for a fire resistant member.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a fire-resistant component fire resistance detection device, includes test chamber, test chamber comprises the curb plate of four directions and the backplate at middle part, test chamber inside is provided with a plurality of bocca that are circular motion, the backplate activity is provided with a plurality of fixed subassemblies that are used for fixed by the test piece, can realize fixing a position and supporting by the test piece to multiple different shapes.
The back plate is provided with a flame nozzle movable groove in the middle, the flame nozzle movable groove is divided into a first annular groove on the outer edge and a second annular groove on the inner edge, and the first annular groove and the second annular groove are communicated through a connecting groove.
The test chamber is characterized in that the fire nozzle movable groove penetrates through the back plate, a hollow tube is arranged in the fire nozzle movable groove, the hollow tube is movably connected with the fire nozzle movable groove through a second limiting ring on the outer wall of the hollow tube, one end of the hollow tube stretches into the cavity of the test chamber and is hermetically connected with a rectangular fire nozzle, one end face of the fire nozzle is provided with a plurality of fire nozzles, the other end of the hollow tube stretches out of the test chamber and is hermetically connected with an air connecting port, a threaded surface is formed in the ring wall of the end, and a locking piece is connected with the threaded surface in a screwing mode.
The test chamber is characterized in that a plurality of slots are formed in the middle of the back plate, inserting blocks are movably inserted and fixed in the slots, and one ends of the inserting blocks extend into the cavity of the test chamber and are fixedly connected with support rods.
Further lie in, two mounting activity groove one and two mounting activity groove two of mirror symmetry are all seted up to the upper end and the lower extreme of backplate, wherein, mounting activity groove one is Contraband type structure, mounting activity groove two is the line type structure, and the inside of the two all is provided with the dead lever, the dead lever through its outer wall the spacing ring one with mounting activity groove one with two swing joint in mounting activity groove, the one end of dead lever extends to L type fixed plate has been linked firmly in the cavity in experimental storehouse.
The outer wall of the stay bar is axially provided with a plurality of annular stripes.
Further, a temperature sensor and a pressure sensor are arranged in the test chamber.
The test chamber is characterized in that a fan is further mounted on a side plate of the test chamber, and the fan is hermetically connected with one end of the air channel.
Further, a support for stabilizing is connected to the outside of the test chamber.
The invention has the beneficial effects that:
1. the invention stably supports the tested piece through the plurality of fixing assemblies, effectively makes up the limitation of poor universality of the existing fire resistance test equipment, and the plurality of fixing assemblies can be flexibly matched to realize the fixation and support of the tested piece with a special structure, so that the structure is reliable and the utilization rate is high;
2. the movable arrangement of the flame-throwing nozzle can arrange the flame-throwing nozzle at a specific position around a tested piece according to actual test requirements, so that the requirement of heating the tested piece with a special structure is met, and the design of the inner circle and the outer circle of the movable groove of the flame-throwing nozzle can increase the number of the flame-throwing nozzles to a certain extent, adjust the heating temperature of the tested piece by adjusting the distance between the flame-throwing nozzle and the tested piece, and is safe and reliable to use.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the backside structure of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic structural view of an L-shaped fixing plate according to the present invention;
FIG. 5 is a schematic structural view of a fixing bar according to the present invention;
fig. 6 is a schematic view of the structure of the fire chamber of the present invention.
In the figure: 1. a test bin; 11. a side plate; 12. a back plate; 13. a support; 14. a fan; 2. a temperature sensor; 3. a pressure sensor; 4. a movable groove of the flame nozzle; 41. a first annular groove; 42. a second annular groove; 43. connecting grooves; 44. a slot; 5. a first fixed part movable groove; 51. a second fixed part movable groove; 6. an L-shaped fixing plate; 61. fixing the rod; 62. a first limiting ring; 7. a stay bar; 71. inserting a block; 8. a flame projecting cavity; 81. a hollow tube; 82. a second limiting ring; 83. a thread face; 84. an air receiving port; 85. a locking member; 86. a flame nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, a fire-resistant component fire resistance detection device, including test chamber 1, test chamber 1 comprises curb plate 11 and the backplate 12 at middle part of four directions, and test chamber 1 in this embodiment does not dispose the door, when having higher requirement to heating temperature and reliability, can set up the door at the opposite face of backplate 12 to seal test chamber 1, also can improve the security in the experimentation to a certain extent, avoid promptly being emptyd by the test piece emergence in the experimentation, the accidental injury testing personnel.
In addition, as shown in fig. 1, a fan 14 is further installed on the side plate 11 of the test chamber 1, the fan 14 is hermetically connected with one end of the air duct, the fan 14 and the air duct can exhaust the flue gas in the test chamber 1 and play a role of stabilizing the pressure, the supports 13 are fixedly connected to the outer walls of the bottom ends of the two longer side plates 11 which are oppositely arranged on two sides of the test chamber 1, the supports 13 in the embodiment are in a triangular structure and play a role of stabilizing the test chamber 1, because compared with the traditional immovable fire-resistant test heat equipment, the device adopts 1400-level insulating bricks, diatomite heat-insulating refractory bricks and super heat-insulating low-temperature substances are mixed and manufactured with a steel structure in certain areas, 45% compact alumina is used as far as possible in all areas suitable for cement connection in a dangerous area and the base of the test chamber 1, and the test chamber 1 is ensured to provide sufficient heat preservation effect during a 6-hour high-temperature test, the provision of a support 13 improves the stability of the device with respect to safety considerations as well as preventing air leakage.
As shown in fig. 3, the middle of the back plate 12 is provided with a burner moving slot 4, and the burner moving slot 4 is divided into a first annular slot 41 on the outer edge and a second annular slot 42 on the inner edge, in this embodiment, the first annular slot 41 and the second annular slot 42 are limited by being connected with the back plate 12, and neither of them forms a complete ring structure, wherein the first annular slot 41 can be decomposed into four arc-shaped slots, the second annular slot 42 can be decomposed into two semicircular slots, the first annular slot 41 and the second annular slot 42 are communicated through a connecting slot 43 formed by inclining 45 degrees, meanwhile, because the first annular slot 41, the second annular slot 42 and the connecting slot 43 penetrate through the back plate 12, and both ends of the hollow pipe 81 also extend out of both sides of the back plate 12, by controlling the hollow pipe 81 located outside the back plate 12, the positions of the hollow pipe 81 in the first annular slot 41, the second annular slot 42 and the connecting slot 43 can be controlled, that is, the position of the burner 86 is changed, the flame-throwing nozzle 86 can do circular motion along the first annular groove 41 and the second annular groove 42, and the hollow pipe 81 is movably connected with the first annular groove 41, the second annular groove 42 and the connecting groove 43 through the second limiting ring 82, namely the hollow pipe 81 can rotate in the circular motion process, so that the angle of the flame-throwing nozzle 86 can be adjusted, and the adjusting functions are achieved.
As shown in fig. 2 and 6, one end of the hollow pipe 81 extends into the cavity of the test chamber 1 and is hermetically connected with the rectangular flame-projecting cavity 8, and one end face of the flame-projecting cavity 8 is provided with a plurality of flame-projecting nozzles 86, and it should be noted here that the number of the plurality of flame-projecting nozzles 86 in this embodiment is two, and when another plurality of flame-projecting nozzles 86 do not need to work together at the same time, the number of the plurality of flame-projecting nozzles 86 can be adjusted in advance to close some of the flame-projecting nozzles 86, so that consumption is reduced, and flame combustion intensity is higher.
As shown in fig. 6, the other end of the hollow tube 81 extends out of the test chamber 1 and is hermetically connected with an air receiving port 84, a thread surface 83 is formed on the annular wall of the end, the thread surface 83 is connected with a locking member 85 in a screwing mode, the air receiving port 84 is connected with an air tube, the air tube inputs methane and liquefied gas into the air receiving port 84, the gas is input into the flame projecting cavity 8 and is converted, the gas is sprayed out through a flame projecting nozzle 86, after the position of the hollow tube 81 is adjusted to be proper, the hollow tube 81 is controlled to be static by one hand, the locking member 85 is rotated by the other hand, the locking member 85 moves along the thread surface 83, finally the locking member 85 is abutted against the outer wall of the back plate 12, and the fixation of the position of the hollow tube 81 is realized through friction force.
As shown in fig. 5 and 6, the fixing assembly includes a supporting rod 7 and L-shaped fixing plates 6, which can position and support the tested piece with various shapes, when testing the transverse member, the inserting block 71 is inserted into the corresponding slot 44 according to the size of the tested piece, then the tested piece is placed on the supporting rod 7 to realize the support, when testing the vertical member, because the fixing rod 61 is movably connected with the first fixing piece moving slot 5 and the second fixing piece moving slot 51 through the first limiting ring 62 on the outer wall of the fixing rod 61, and the first limiting ring 62 plays a limiting role, the position of the fixing rod 61 can be moved along the first fixing piece moving slot 5 to displace the L-shaped fixing plates 6 to a proper position, and because at least two fixing rods 61 are arranged in the first fixing piece moving slot 5 and the second fixing piece moving slot 51, the two L-shaped fixing plates 6 are mirror-symmetrical, thereby supporting the bottom end of the tested piece, the positioning and supporting of the tested piece are realized, the first fixing piece moving groove 5 is of an Contraband type structure, the second fixing piece moving groove 51 is of a linear structure, the fixing rods 61 arranged inside the fixing pieces and the fixing pieces are used in a matched mode, the tested piece with different lengths, widths and shapes is positioned and supported, and the supporting rods 7 can be used for matching when necessary, so that the clamping and hanging effects are achieved to a certain extent.
In the invention, the outer wall of the support rod 7 is axially provided with a plurality of annular stripes, so that the friction force of the support rod 7 can be increased, and the support rod can be more stable when supporting a tested piece.
According to the needs, the fixing rod 61 of the present invention can be additionally provided with a positioning component, so that the L-shaped fixing plate 6 is stationary after being fixed at a proper position, and the shaking and the deviation of the L-shaped fixing plate are avoided.
As shown in fig. 3, the test chamber 1 is also provided with a temperature sensor 2 and a pressure sensor 3, which can transmit the pressure and temperature inside the test chamber 1 accurately, so that the test personnel outside the test chamber 1 can control the test condition accurately, the stability in the test process is improved, and even if an accident occurs, the personnel can know and take remedial measures rapidly.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 do not necessarily 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.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (9)
1. The utility model provides a fire-resistant member fire resistance detection device, includes test bin (1), test bin (1) comprises curb plate (11) and backplate (12) at middle part of four directions, its characterized in that, test bin (1) inside is provided with a plurality of bocca (86) of doing circular motion, backplate (12) activity is provided with a plurality of fixed subassemblies that are used for fixed by the test piece, can realize fixing a position and supporting by the test piece to multiple different shapes.
2. The device for detecting the fire resistance of the fire-resistant member according to claim 1, wherein a movable flame nozzle slot (4) is formed in the middle of the back plate (12), the movable flame nozzle slot (4) is divided into a first annular slot (41) on the outer edge and a second annular slot (42) on the inner edge, and the first annular slot and the second annular slot are communicated through a connecting slot (43).
3. The fire-resistant member fire resistance detection device according to claim 1, wherein the fire nozzle movable groove (4) penetrates through the back plate (12), a hollow tube (81) is arranged in the fire nozzle movable groove, the hollow tube (81) is movably connected with the fire nozzle movable groove (4) through a second limiting ring (82) on the outer wall of the hollow tube, one end of the hollow tube (81) extends into the cavity of the test chamber (1) and is hermetically connected with a rectangular fire nozzle cavity (8), one end face of the fire nozzle cavity (8) is provided with a plurality of fire nozzles (86), the other end of the hollow tube (81) extends out of the test chamber (1) and is hermetically connected with an air receiving opening (84), a threaded surface (83) is formed on the annular wall of the end, and a locking piece (85) is screwed on the threaded surface (83).
4. The fire-resistant member fire resistance detection device according to claim 1, wherein a plurality of slots (44) are formed in the middle of the back plate (12), an insert block (71) is movably inserted and fixed in each slot (44), and one end of each insert block (71) extends into the cavity of the test chamber (1) and is fixedly connected with a support rod (7).
5. The fire-resistant member fire resistance detection device according to claim 1, wherein the upper end and the lower end of the back plate (12) are respectively provided with two first fixing member moving grooves (5) and two second fixing member moving grooves (51) which are mirror-symmetrical, wherein the first fixing member moving grooves (5) are Contraband-shaped structures, the second fixing member moving grooves (51) are linear structures, fixing rods (61) are respectively arranged in the first fixing member moving grooves and the second fixing member moving grooves, the fixing rods (61) are movably connected with the first fixing member moving grooves (5) and the second fixing member moving grooves (51) through a first limiting ring (62) on the outer wall of the fixing rods, and one end of each fixing rod (61) extends into the cavity of the test chamber (1) and is fixedly connected with an L-shaped fixing plate (6).
6. The apparatus for detecting the fire resistance of a fire-resistant member according to claim 4, wherein the outer wall of the stay bar (7) is axially provided with a plurality of annular stripes.
7. The device for detecting the fire resistance of the fire-resistant member according to any one of claims 1 to 6, wherein a temperature sensor (2) and a pressure sensor (3) are further arranged inside the test chamber (1).
8. The device for detecting the fire resistance of the fire-resistant component according to any one of claims 1 to 6, wherein a fan (14) is further installed on the side plate (11) of the test chamber (1), and the fan (14) is hermetically connected with one end of the air duct.
9. The apparatus for detecting the fire resistance of a fire-resistant member according to any one of claims 1 to 6, wherein a support (13) for stabilizing is further connected to the outside of the test chamber (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111457797.4A CN114137147B (en) | 2021-12-01 | 2021-12-01 | Refractory performance detection device for refractory component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111457797.4A CN114137147B (en) | 2021-12-01 | 2021-12-01 | Refractory performance detection device for refractory component |
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| CN114137147A true CN114137147A (en) | 2022-03-04 |
| CN114137147B CN114137147B (en) | 2023-07-04 |
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