CN112240857B - Simulation test device for anti-flash-explosion impact of fire wall of air chamber in underground pipe gallery - Google Patents
Simulation test device for anti-flash-explosion impact of fire wall of air chamber in underground pipe gallery Download PDFInfo
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- CN112240857B CN112240857B CN202011096819.4A CN202011096819A CN112240857B CN 112240857 B CN112240857 B CN 112240857B CN 202011096819 A CN202011096819 A CN 202011096819A CN 112240857 B CN112240857 B CN 112240857B
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/313—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a simulation test device for anti-flash-explosion impact of a firewall of a gas cabin in an underground pipe gallery, which comprises an outer protective box body, a gas cabin module and a protective bracket, wherein the outer protective box body is provided with a first outer box body; the gas cabin module comprises a fixed gas cabin and a movable gas cabin, a gas pipeline is arranged in the fixed gas cabin, one end of the fixed gas cabin is communicated with the movable gas cabin, and a firewall is arranged in the movable gas cabin; the protective bracket comprises a fireproof wall fixing head, a pressure measurement spring, a protective plate and a supporting frame, wherein one end of the fireproof wall fixing head is fixedly connected with the fireproof wall, the pressure measurement spring is fixed on the protective plate, a displacement measurer is installed on the fireproof wall fixing head, the pressure measurement spring is used for measuring pressure borne by the fireproof wall when gas is exploded, and the displacement measurer is used for measuring displacement of the fireproof wall when gas is exploded. The invention measures the pressure and displacement of the gas cabin firewall in the underground pipe gallery by simulating the gas impact load, and provides a test result for the destruction analysis of the gas cabin.
Description
Technical Field
The invention relates to the technical field of fire safety, in particular to a simulation test device for anti-flash-explosion impact of a firewall of an air compartment in an underground pipe gallery.
Background
The urban underground comprehensive pipe gallery has the advantages of facilitating underground pipeline management, saving underground space land, reducing municipal pipeline accidents and the like, so that the urban underground comprehensive pipe gallery is actively popularized and constructed in various big cities in China. However, the pipeline that carries this kind of gas that has dangerous gas once takes place gas flash explosion because of revealing, will cause the damage of impact to the shelter cabin fire wall and can spread the stable in structure in other pipelines and cabins moreover, constitutes huge threat to city utility tunnel's safety. At present, the urban underground comprehensive pipe gallery in China is in the initial development period, and the exploration of the gas transmission pipeline gas flash explosion impact effect on the damage of the cabin and the firewall of the comprehensive pipe gallery is still highly subjective and blind. The gas cabin firewall is researched to be damaged by gas flash explosion impact, the interaction relation between gas flash explosion impact load and the gas cabin firewall is known, and the space safety of the underground comprehensive pipe gallery is significant, wherein a relatively visual result can be obtained by utilizing a test means to carry out related research. Consequently, designed a simulation gas transmission pipeline gas flash explosion impact load and to the experimental device of underground pipe gallery gas cabin fire wall destruction, provide experimental basis for the gas cabin destruction analysis.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a simulation test device for the anti-flash explosion impact of a firewall of a gas cabin in an underground pipe gallery.
In order to solve the technical problem, the invention provides a simulation test device for resisting flash explosion impact of a firewall of a gas cabin in an underground piping lane, which is characterized by comprising an outer protective box body, wherein a gas cabin module and a protective bracket are arranged in the outer protective box body;
the gas cabin module comprises a fixed gas cabin and a movable gas cabin, a gas pipeline is installed in the fixed gas cabin, a rubber air bag used for simulating gas flash explosion load is installed on a reserved leakage port of the gas pipeline, one end of the fixed gas cabin is communicated with the movable gas cabin, a firewall is installed in the movable gas cabin, and the firewall is tightly attached to the wall surface of the movable gas cabin;
protective bracket is including preventing hot wall fixed head, the pressure measurement spring, guard plate and support frame, prevent the one end of hot wall fixed head and prevent hot wall fixed connection, pressure measurement spring one end is connected to its other end, the other end of pressure measurement spring is fixed on the guard plate side, the relative side fixed support of guard plate has the support frame, prevent that hot wall fixed head is the same with prevent that hot wall shape is the same and thickness ratio prevents that hot wall backward movement distance is big, prevent installing the displacement caliber on the hot wall fixed head, the pressure measurement spring is used for measuring when gaseous explosion prevents the hot wall pressure that receives, the displacement caliber is used for measuring when gaseous explosion.
Furthermore, a base bottom plate is fixedly installed at the bottom of the outer protective box body, and the gas cabin module is installed on the base bottom plate.
Furthermore, an elastic wall is further installed inside the protective outer box body, and the elastic wall is fixed on the foundation bottom plate and located on the right side of the fixed gas cabin.
Further, the gas cabin module still includes the dead lever, and the dead lever is four and the level is placed, each apex angle in fixed gas cabin and the activity gas cabin is equipped with the fixed orifices, prevents that four apex angles of hot wall fixed head are equipped with the slip trepanning, and the dead lever passes fixed orifices and slip trepanning and screws up the connection through the nut at hole both ends.
Furthermore, the displacement measurement device comprises a scale pointer and a scale, the scale pointer is fixed on the firewall fixing head, and the scale pointer points to the scale with scales.
Furthermore, one end of the outer protective box is provided with a gas transmission pipeline, one end of the gas transmission pipeline is located outside the outer protective box, and the other end of the gas transmission pipeline is located inside the outer protective box and communicated to a gas pipeline inside the fixed gas cabin.
Furthermore, one end of the protective outer box body is provided with a protective door.
Furthermore, the positive side of protection outer box is equipped with the observation window, and the scale is located the observation window.
Furthermore, the top of the protective outer box body is provided with a pressure relief protective valve.
Furthermore, a pressure release valve is arranged at the top of the fixed gas cabin.
Compared with the prior art, the invention has the following beneficial effects: the invention can simulate the impact action of gas flash explosion in the gas cabin on the firewall of the gas cabin, measure and analyze the deformation characteristics and the damage process (pressure and displacement) of the gas cabin and the firewall of the underground pipe gallery, and provide test basis for analyzing the influence factors and the damage cause of the gas flash explosion impact load on the firewall of the gas cabin.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive labor.
FIG. 1 is a perspective schematic view of the protective outer casing and gas compartment module of the present invention;
FIG. 2 is a schematic overview of the three-dimensional structure of the present invention;
FIG. 3 is a schematic view of the gas compartment of the present invention connected to a protective bracket;
FIG. 4 is an exploded view of the gas compartment module of the present invention;
FIG. 5 is a schematic view of the structure of the elastic wall and the protective bracket of the present invention;
FIG. 6 is a side view of the firewall mount head of the present invention;
FIG. 7 is a schematic view of the gas piping structure of the present invention;
fig. 8 is a schematic structural view of the displacement measuring instrument of the present invention.
The reference numbers in the figures illustrate: 1. the device comprises a protective outer box body 2, a pressure relief protective valve 3, an observation window 4, an air transmission pipeline 401, a pressurizing valve 402, a pressure gauge 5, a protective door 6, an elastic wall 7 and a foundation bottom plate;
8. the device comprises a gas cabin module 801, a fixed gas cabin, 8011, a pressure release valve, 8012, a support pier, 8013, a pipeline clamp, 8014, a gas pipeline, 8015, a connecting bayonet, 8016, a bolt, 802, a movable gas cabin, 803, a firewall, 804, a clamping groove, 805, a sealing strip, 806 and a fixing hole;
9. the device comprises a protective support, 901, a firewall fixing head, 9011, a sliding track, 9012, a sliding sleeve hole, 902, a pressure measuring spring, 903, a protective plate, 904, a reinforcing rib, 905 and a support frame;
10. a fixing rod 11, a nut;
12. displacement measuring device 1201, scale 1202, and scale pointer.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present patent application, it is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
In the description of the present patent, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present patent and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present patent application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present patent can be understood in a specific case by those skilled in the art.
The invention discloses a simulation test device for anti-flash-explosion impact of a firewall of a gas cabin in an underground pipe gallery, which comprises a protective outer box body 1, wherein a gas cabin module 8 and a protective support 9 are arranged in the protective outer box body 1;
the gas cabin module 8 comprises a fixed gas cabin 801 and a movable gas cabin 802, a gas pipeline 8014 is installed in the fixed gas cabin 801, a rubber airbag for simulating gas flash explosion load is installed on a reserved leakage port of the gas pipeline 8014, one end of the fixed gas cabin 801 is communicated with the movable gas cabin 802, a firewall 803 is installed in the movable gas cabin 802, and the firewall 803 is tightly attached to the wall surface of the movable gas cabin 802;
The invention measures the pressure and displacement of the gas cabin firewall in the underground pipe gallery by simulating the gas impact load, and provides a test result for the destruction analysis of the gas cabin.
Examples
The invention discloses a simulation test device for anti-flash-explosion impact of a firewall of a gas cabin in an underground pipe gallery, which comprises a protective outer box 1, wherein a gas cabin module 8 and a protective support 9 are arranged in the protective outer box.
The structure of each component is described in detail below.
The structure of the protective outer box 1, as shown in fig. 1 and fig. 2, the protective outer box 1 is a sealed box structure, one end of the protective outer box 1 is equipped with a gas transmission pipeline 4, and the protective outer box 1 and the gas transmission pipeline 4 are integrally connected; one end of the gas pipeline 4 is located outside the protective outer box, and the other end of the gas pipeline 4 is located inside the protective outer box and communicated to the gas pipeline 8014 fixed inside the gas cabin in the gas cabin module 8 to input inert gas into the gas pipeline 8014 so as to simulate the impact effect of flash explosion.
The other end of the protective outer box body 1 is provided with a protective door 5, and the protective door 5 is convenient for the installation and the disassembly of the movable gas cabin 802, the protective bracket 9 and the fixed rod 10.
The top of the outer protective box body 1 is provided with a pressure relief protective valve 2, and the pressure relief protective valve 2 is fixed at the top of the outer protective box body 1 and mainly plays a role in protection. Because the gas cabin module 8 and the protective outer box body 1 are respectively closed spaces; if take place to flash and explode the impact in the gas cabin module 8 to cabin internal gas pressure increases, and relief valve 8011 is external to be decompressed, makes the inside space pressure increase of protective outer box 1, if the inside space pressure of protective outer box 1 is too big, and pressure release protective valve 2 carries out the pressure release and plays the guard action this moment.
An observation window 3 is arranged on the side surface of the protective outer box 1, and is used for observing the moving distance and the internal test condition of the firewall 803 and the firewall fixing head 901. Since the protective outer box 1 is made of reinforced concrete, the inside of the protective outer box 1 cannot be visually observed, and in order to observe the moving distance and the destruction degree of the fire wall 803 and the fire wall fixing head 901, a rectangular observation window 3 is formed at the moving position of one side of the protective outer box 1 relative to the pointer 1202, and the window is made of transparent explosion-proof glass and is used for observing the moving distance and the destruction condition of the fire wall.
The bottom of the protective outer box body 1 is fixedly provided with a foundation bottom plate, one end of the foundation bottom plate 7, which is close to the gas transmission pipeline 4, is connected with an elastic wall 6, and a gas cabin module 8 is arranged on the foundation bottom plate and is close to the elastic wall. The elastic wall 6 is used for buffering and damping, and plays a good elastic buffering role for the gas cabin when the flash explosion impact action occurs.
The structure of the gas cabin module is shown in fig. 3-6, the gas cabin module 8 is located on the foundation bottom plate 7, one end of the gas cabin module is connected with the elastic wall 6, and the other end of the gas cabin module is provided with a protective support 9.
The gas cabin module 8 comprises a fixed gas cabin 801 and a movable gas cabin 802, wherein the fixed gas cabin 801 and the movable gas cabin 802 simulate the space structure between two firewalls in the gas cabin of an urban underground pipe gallery in practice; the fixed gas cabin 801 means that the cabin is fixed on a base bottom plate, mainly a gas pipeline is placed, and the cabin cannot be detached. The movable gas chamber 802 is placed on the foundation bottom plate for placing the firewall, and the movable gas chamber can be detached and replaced.
The fixed gas cabin 801 is only provided with a box structure with an opening at the right side, and the fixed gas cabin 801 is provided with a box structure with openings at the left side and the right side. Fixed gas cabin 801 is fixed in on the soleplate 7, and elasticity wall 6 is connected to fixed gas cabin 801 left side blind end, and the activity gas cabin 802 one end is connected through draw-in groove 804 and sealing strip 805 to the right side open end, and protective housing 9 is placed to the other end of activity gas cabin 802 one end, and draw-in groove 804 and sealing strip 805 are used for sealing up gas cabin module 8.
Two supporting piers 8012 are arranged at the bottom of the fixed gas cabin 801, a pipeline clamp 8013 with a bolt 8016 is arranged on each supporting pier 8012 to fix the gas pipeline 8014, two ends of each gas pipeline 8014 are sealed, and are not provided with connecting parts and are fixed on the supporting piers 8012 by virtue of the pipeline clamps 8013; gas duct 8012 is arranged to simulate and analyze the destructive effect of a leaking gas in a gas duct from a flash explosion impact on a firewall and a corridor wall. The gas pipeline 4 passes through the protective outer box body 1, the elastic wall 6 and the foundation slab 7 in sequence, and is vertically communicated with the gas pipeline 8014 upwards in the center of the first support pier 8012 in the fixed gas chamber 801, as shown in fig. 7. A connecting buckle 8015 is arranged at a reserved leakage opening of the gas pipeline 8014, and rubber air bags with different elasticity are connected to the connecting buckle 8015 to simulate impact loads generated by gas flash explosion in different degrees.
The simulation process is that gas is input into the gas pipeline 8014 through the gas pipeline 4, after reaching a certain pressure, the gas leaks to the rubber air bag connected with the connecting bayonet from the connecting bayonet 8015, and the rubber air bag which is continuously expanded is subjected to flash explosion under the action of the strength of the rubber air bag and the gas pressure, so that different gas flash explosion loads are simulated.
Further, the gas pipeline 4 is provided with a pressure valve 401 and a pressure gauge 402, as shown in fig. 7, the pressure valve is used for controlling the pressure of the gas entering the gas pipeline, and the pressure gauge is used for recording whether the pressure added is suitable or not.
Further, when the gas in the gas pipeline is subjected to flash explosion, the released gas can increase the pressure of the gas cabin module, in order to protect the fixed gas cabin, a pressure relief valve 8011 is arranged at the top of the fixed gas cabin 801, and when the pressure exceeds the bearing capacity of the pressure relief valve 8011, the pressure is relieved by the pressure relief valve 8011. The pressure relief valve 8011 is for relieving pressure in the internal space of the gas cabin, and the pressure released increases the pressure in the space inside the protective outer box 1, so the pressure relief protective valve 2 plays a secondary pressure relief protective function, mainly a protective function.
A firewall 803 is arranged inside the movable gas cabin 802; the firewall is closely attached to the wall surface of the movable gas cabin. The flash explosion impact has influence on the wall surface of the movable gas cabin and an internal firewall, the firewall can move backwards or crack or be damaged according to different flash explosion impact degrees, and different test conditions such as cracks and fissures can also appear on the wall surface of the movable gas cabin.
In order to measure the moving displacement and the pressure of the fire wall, a protective bracket 9 fixedly connected with the fire wall 803 is arranged at the right opening end of the movable gas cabin 802.
The structure of the protection support 9 is shown in fig. 3-6, the protection support comprises a firewall fixing head 901, a pressure measurement spring 902, a protection plate 903 and a support frame 905, the left end of the firewall fixing head 901 is fixedly connected with the firewall 803, the left end of the pressure measurement spring 902 abuts against the right end of the firewall fixing head 901, the right end of the pressure measurement spring 902 is fixed on the protection plate 903, and the pressure measurement spring 902 is used for measuring the pressure borne by the firewall during gas flash explosion. The fender 903 is provided with a cross-shaped reinforcing rib 904, and the supporting frame 905 fixes and supports the fender 903. The support frame 905 plays a role in fixing and supporting, and because the energy released instantly by flash explosion is very large, the protection in the test process is enhanced, and the safety and the reliability of the test are also improved.
The fixed gas compartment 801, the movable gas compartment 802 and the firewall fixing head 901 form a closed space. And the one end that sets up to prevent that hot wall fixed head 901 and firewall 803 are connected is the same with prevent that hot wall box shape and thickness ratio prevent that hot wall backward movement distance is big, when the inside hot wall of activity gas cabin takes place to remove, 8 spaces of gas cabin module are no longer airtight this moment, because the shape of preventing hot wall fixed head front end is the same with preventing hot wall, thickness ratio prevents that hot wall backward movement distance is big, consequently prevent when hot wall 803 takes place to remove, prevent hot wall fixed head and prevent the same structure of hot wall and can guarantee the inside airtight of cabin all the time, this kind of condition accords with actual underground pipe gallery inner space leakproofness, inside gas cabin and underground comprehensive pipe gallery, the space remains airtight all the time.
The bottom of the firewall fixing head 901 is provided with a sliding rail 9011, the sliding rail 9011 is an arc-shaped surface, as shown in fig. 6, when the firewall moves backwards, the firewall fixing head fixedly connected with the firewall slides backwards through the bottom sliding rail, so that friction can be reduced, and displacement of the firewall caused by flash explosion impact is reflected.
Because the firewall and the firewall fixed head are fixedly connected, the moving distance of the firewall is equal to that of the firewall fixed head, in order to measure the displacement of the firewall, a displacement measurer 12 is installed on the side surface of the firewall fixed head 901, the displacement measurer 12 comprises a scale pointer 1202 and a scale 1201, and the scale pointer 1202 is fixed on the firewall fixed head 901, and the scale 1201 with scales is arranged in the observation window 3 pointed by the scale pointer 1202. The scale pointer is established on preventing hot wall fixed head, is for protecting the scale pointer, because prevent hot wall and directly receive the flash explosion impact influence, if establish the scale pointer on the firewall, will receive the destruction, need change often, experimental inconvenient promptly, lead to measuring also difficult, and establish on preventing hot wall fixed head, the scale pointer can not receive the impact effect influence, experimental data safe and reliable.
As a preferred mode of the present invention, in order to realize flexible detachment of the movable gas cabin, the gas cabin module 8 further includes four fixing rods 10, the four fixing rods are horizontally disposed, each vertex angle of the fixed gas cabin 801 and the movable gas cabin 802 is provided with a fixing hole 806, four vertex angles of the protective bracket 9 are provided with a sliding sleeve hole 9012, the fixing rod 10 passes through the fixing hole 806 and the sliding sleeve hole 9012 to be connected with the elastic wall, and the fixing rod 10 is externally threaded at a position corresponding to each hole, so as to be conveniently screwed and connected at two ends by nuts 11.
As a preferable mode of the present invention, the pressure measurement spring 902 can measure the pressure generated when the firewall 803 is subjected to the gas impact load; the displacement measuring instrument 12 can observe the displacement value of the scale pointer 1202 on the firewall fixing head 901 through the explosion-proof transparent glass observation window 3 protecting the side surface of the outer case 1.
The simulation experiment working process of the device provided by the invention comprises the following steps:
the gas is input into a gas pipeline 8014 through the gas pipeline 4, the pressure of the input gas is controlled and checked through a pressurizing valve 401 and a pressure gauge 402, when the gas pressure in the gas pipeline 8014 exceeds the pressure born by a connecting bayonet 8015, the gas is leaked to a rubber air bag connected with the connecting bayonet 8015, along with the continuous pressurization of the gas, when the pressure born by the rubber air bag exceeds the strength of the air bag, explosion occurs, impact generated by instant explosion acts on the wall surface of a gas cabin and a firewall 803, when the firewall 803 moves under the action of explosion impact, a firewall fixing head 901 is driven to compress a pressure measuring spring 902, the pressure measuring spring 902 can display and record the pressure indication number at the moment, and meanwhile, a ruler pointer 1202 fixed on the firewall fixing head 901 can record the moving displacement value of the firewall fixing head 901. After the test is finished, the protection bracket 9 and the movable gas cabin 802 can be detached in sequence by entering from the protection door 5 of the outer protection box 1, the damage of the fire wall 803 and the cabin wall surface which are impacted by the flash explosion can be checked, and the change can be carried out. When the gas chamber is disassembled, the nut 11 is firstly unscrewed, the four fixing rods 10 are drawn out, and the protective support 9 and the movable gas chamber 802 are disassembled and replaced in sequence.
The invention measures the pressure and displacement of the gas cabin firewall in the underground pipe gallery by simulating the gas impact load, and provides a test result for the destruction analysis of the gas cabin.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, 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 protection scope of the present invention.
Claims (6)
1. A simulation test device for anti-flash explosion impact of a firewall of a gas cabin in an underground pipe gallery is characterized by comprising an outer protective box body, wherein a gas cabin module and a protective support are arranged in the outer protective box body;
the gas cabin module comprises a fixed gas cabin and a movable gas cabin, a gas pipeline is installed in the fixed gas cabin, a rubber air bag used for simulating gas flash explosion load is installed on a reserved leakage port of the gas pipeline, one end of the fixed gas cabin is communicated with the movable gas cabin, a firewall is installed in the movable gas cabin, and the firewall is tightly attached to the wall surface of the movable gas cabin;
the protective bracket is including preventing hot wall fixed head, the pressure measurement spring, guard plate and support frame, prevent the one end of hot wall fixed head and prevent hot wall fixed connection, pressure measurement spring one end is connected to its other end, the other end of pressure measurement spring is fixed on a guard plate side, the opposite flank fixed stay of guard plate has the support frame, prevent that hot wall fixed head is connected with prevent that hot wall shape is the same and thickness ratio prevents that hot wall backward movement distance is big, prevent installing the displacement caliber on the hot wall fixed head, the pressure measurement spring is used for measuring the pressure that prevents that hot wall receives when gaseous explosion, the displacement caliber is used for measuring the displacement that prevents hot wall when gaseous explosion.
2. The device for simulating the flash explosion impact resistance of the fire wall of the air cabin in the underground pipe gallery according to claim 1, wherein a base plate is fixedly installed at the bottom of the outer protecting box, the gas cabin module is installed on the base plate, an elastic wall is further installed inside the outer protecting box, and the elastic wall is fixed on the base plate and located on the right side of the fixed gas cabin.
3. The device of claim 1, wherein the gas cabin modules further comprise four fixing rods, the four fixing rods are horizontally arranged, each top corner of the fixed gas cabin and the movable gas cabin is provided with a fixing hole, four top corners of a fixing head of the firewall are provided with sliding sleeve holes, and the fixing rods penetrate through the fixing holes and the sliding sleeve holes and are screwed up and connected with the two ends of the holes through nuts.
4. The device for simulating the anti-flash-explosion impact of the fire wall of the air chamber in the underground pipe gallery according to claim 1, wherein the displacement measurer comprises a scale pointer and a scale, the scale pointer is fixed on the fire wall fixing head, and the scale pointer points to the scale with scales.
5. The device for simulating the anti-flash-explosion impact of the fire wall of the air chamber in the underground pipe gallery according to claim 4, wherein one end of the outer protection box is provided with an air pipeline, one end of the air pipeline is located outside the outer protection box, the other end of the air pipeline is located inside the outer protection box and communicated with a gas pipeline inside the fixed gas cabin, the other end of the outer protection box is provided with a protection door, the front side surface of the outer protection box is provided with an observation window, a scale is located in the observation window, and the top of the outer protection box is provided with a pressure relief protection valve.
6. The device for simulating the flash explosion impact resistance of the firewall of the gas cabin in the underground pipe gallery according to claim 1, wherein a pressure release valve is arranged at the top of the fixed gas cabin.
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| CN202011096819.4A CN112240857B (en) | 2020-10-14 | 2020-10-14 | Simulation test device for anti-flash-explosion impact of fire wall of air chamber in underground pipe gallery |
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| CN113466428A (en) * | 2021-05-21 | 2021-10-01 | 江苏健安安全科技有限公司 | Grading test device for explosive objects in factory building |
| CN114858392B (en) * | 2022-04-26 | 2023-04-25 | 重庆大学 | System and method for testing explosion-proof and high-temperature-resistant performance of key structure in highway tunnel |
| CN114838973B (en) * | 2022-07-06 | 2022-09-30 | 中国矿业大学(北京) | Utility tunnel is utility test platform of emergency response system for gas cabin |
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| SU1763923A1 (en) * | 1990-06-25 | 1992-09-23 | Институт Проблем Прочности Ан Усср | Ballistic testing stand |
| CN103851028B (en) * | 2014-03-19 | 2016-01-20 | 中国人民解放军总参谋部工程兵科研三所 | Large-scale blast wave simulator buffering recuperator means |
| CN207832597U (en) * | 2018-01-24 | 2018-09-07 | 中国矿业大学(北京) | Gas combustion explosion analogue experiment installation in a kind of Urban Underground pipe gallery cabin |
| CN111257022B (en) * | 2020-01-16 | 2022-05-10 | 中国人民解放军陆军工程大学 | Gas explosion simulation test device and system in underground comprehensive pipe gallery space |
| CN111474208B (en) * | 2020-04-17 | 2022-04-05 | 南京工业大学 | Simulation experiment and suppression device for gas cloud explosion of non-uniform gradient concentration formed by gas leakage in urban underground pipe gallery cabin |
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