Distance-adjustable fire source device for studying tunnel double-fire-source fire combustion characteristics

Abstract

The utility model belongs to the technical field of urban tunnel fire safety, and particularly relates to a distance-adjustable fire source device for studying tunnel double-fire-source fire combustion characteristics, which comprises a slideway arranged in a box body; the two sliding blocks are in sliding fit with the sliding ways through grooves formed in the bottoms, the sliding blocks are used for installing a fire source, and the sliding blocks are in limiting fit with the sliding ways; the fuel source is connected with the fire source and used for supplying fuel; the ignition part is mounted on the sliding block and is used for igniting a fire source; the temperature sensing part is installed on the sliding block and used for detecting the temperature of the fire source. Compared with an existing double-fire-source fire experiment device, the device can achieve temperature detection of double-fire-source fire at different angles, and through changes of the fire source distance and the fire source release rate, the degree, characteristics and evolution law of tunnel fire combustion under different double-fire-source conditions can be further studied.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of city tunnel fire safety technology especially relates to a kind of fire source device with adjustable tunnel double fire source fire burning characteristic distance. BACKGROUND

[0002] With the continuous development of transportation infrastructure, tunnels play an increasingly important role in transportation. However, the risk of tunnel fires has also increased, especially the more complex form of double fire source fire, which poses a major challenge to tunnel safety. At the same time, in recent years, a number of tunnel fire accidents have gradually exposed the shortcomings of tunnel fire design. Double fire source fire, as a complex form of fire, has very different burning characteristics and influencing factors from single fire source fire. Studying tunnel double fire source fire helps improve the fire prevention and extinguishing capabilities of tunnels, ensuring the safety of personnel and property. Through the study of tunnel double fire source fire, we can gain a deeper understanding of its burning process, smoke diffusion law, temperature distribution and other characteristics, providing scientific basis for the ventilation design and fire facility configuration of tunnels. At the same time, it can also provide effective fire emergency plans and rescue measures for tunnel managers, improving the response capabilities of tunnels in the event of a fire.

[0003] For current research, the state of fire under various fire conditions and between various variables is not easy to adjust, it is difficult to achieve the required fire simulation conditions, the fire distance is not adjustable, and the impact of fire distance change is difficult to observe. Therefore, there is an urgent need for a fire source device with adjustable tunnel double fire source fire burning characteristic distance to solve the problem. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of fire source device with adjustable tunnel double fire source fire burning characteristic distance to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0006] A kind of fire source device with adjustable tunnel double fire source fire burning characteristic distance, comprising:

[0007] Slide, the slide is arranged in box body;

[0008] Two sliding blocks, the sliding block is slidably connected with the slide by the groove opened in bottom, the sliding block is used to install fire source, the sliding block is limitingly matched with the slide;

[0009] Fuel source, connected with the fire source, for fuel supply;

[0010] Ignition part, installed on the sliding block, for the fire source ignition;

[0011] A temperature sensing part is installed on the sliding block to detect the temperature of the fire source.

[0012] Optionally, the fuel source comprises a fuel delivery hose connected with the fire source, one end of the fuel delivery hose is communicated with a hose external gas tank opening through a hose through hole opened in the bottom of the slide, and the hose external gas tank opening is used to communicate with a gas tank.

[0013] A flow detection part for detecting the fuel flow is communicated in the middle of the fuel delivery hose.

[0014] Optionally, the flow detection part comprises a mass flow meter, and the mass flow meter is communicated and arranged in the middle of the fuel delivery hose.

[0015] Optionally, a plurality of plug holes are equidistantly arranged along the length direction of the slide, and any plug hole is limited and matched with a plug pin, and the plug pin is vertically and slidingly arranged on the sliding block.

[0016] Optionally, the ignition part comprises a remote electric arc ignition device, and the remote electric arc ignition device is fixedly connected with the sliding block.

[0017] Optionally, the temperature sensing part comprises a thermocouple device, and the thermocouple device is fixedly connected with the sliding block.

[0018] Optionally, a supporting leg is fixedly connected with the bottom of the slide.

[0019] Optionally, a wooden board is arranged in the gap between the two sliding blocks and the empty space of the slide.

[0020] Compared with the prior art, the device has the following advantages and technical effects:

[0021] In use, the fire source is installed on the sliding block, the distance between the two sliding blocks is adjusted, the sliding blocks are limited and matched with the slide after the distance is confirmed and adjusted, the fuel source is started, the fire source is ignited through the ignition part, the fuel source is used to supply fuel when the fire source burns, and the temperature of the fire source can be sensed through the temperature sensing part. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0023] Figure 1 It is a structural schematic diagram of the present application;

[0024] Figure 2 It is a structural schematic diagram of the slide of the present application;

[0025] Figure 3 It is a structural diagram of the first test state of the present application;

[0026] Figure 4 It is a structural diagram of the second test state of the present application;

[0027] Figure 5 It is a top view of the test state of the present application;

[0028] Figure 6 It is a side view of the test state of the present application;

[0029] Among them, 1, mass flowmeter; 2, sliding block; 3, fuel delivery hose; 4, bolt; 6, jack; 7, slide; 8, thermocouple device; 9, remote control arc ignition device; 10, support leg; 11, hose external gas tank opening; 12, soft tube via hole; 13, wooden board. DETAILED DESCRIPTION

[0030] The technical schemes in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail in combination with the drawings and specific embodiments.

[0032] With reference to Figures 1 to 6 The present application discloses a fire source device with adjustable distance for researching combustion characteristics of tunnel double fire sources, comprising:

[0033] The slide 7 is arranged in the box;

[0034] Two sliders 2 are slidably connected with the slide 7 through the grooves opened on the bottom of the slide 7, the sliders 2 are used for installing the fire sources, and the sliders 2 are limitingly connected with the slide 7;

[0035] A fuel source is connected with the fire source and is used for fuel supply;

[0036] An ignition part is installed on the slider 2 and is used for igniting the fire source;

[0037] A temperature sensing part is installed on the slider 2 and is used for detecting the temperature of the fire source.

[0038] In the scheme, the fire source is selected as a cartridge burner.

[0039] In use, the fire source is installed on the slider 2, the distance between the two sliders 2 is adjusted, the sliders 2 are slid on the slide 7, the distance is confirmed and adjusted, the sliders 2 are limitingly connected with the slide 7, the fuel source is started, the fire source is ignited through the ignition part, the fuel source is used for fuel supply when the fire source burns, and the temperature of the fire source can be sensed through the temperature sensing part.

[0040] As an optional implementation, the fuel source comprises a fuel delivery hose 3 connected with the fire source, one end of the fuel delivery hose 3 is connected with a hose external gas tank opening 11 after penetrating through a soft tube through hole 12 opened on the bottom of the slider 2 and the slide 7, and the hose external gas tank opening 11 is used for being connected with a gas tank.

[0041] A flow detection part for detecting the fuel flow is connected with the middle part of the fuel delivery hose 3.

[0042] As an optional implementation, the flow detection part comprises a mass flowmeter 1 which is arranged in the middle part of the fuel delivery hose 3.

[0043] As an optional implementation, a plurality of plug holes 6 are equidistantly arranged on the slide 7 along the length direction, any plug hole 6 is limitingly connected with a plug pin 4, and the plug pin 4 is vertically slidably arranged on the slider 2.

[0044] As an optional implementation, the ignition part comprises a remote control electric arc ignition device 9 which is fixedly connected with the slider 2.

[0045] As an optional implementation, the temperature sensing part comprises a thermocouple device 8 which is fixedly connected with the slider 2.

[0046] As an optional implementation, the bottom of the slide 7 is fixedly connected with a supporting leg 10.

[0047] As an optional embodiment, wood board 13 is laid in the gap between two sliders 2 and the empty space of slide 7.

[0048] A fire source device for studying adjustable distance of tunnel double fire source combustion characteristics, comprising:

[0049] Mounting frame, the mounting frame comprises slide 7 and a plurality of jacks 6 opened on the slide 7;

[0050] The fire source device comprises slider 2, cartridge burner, remote control electric arc ignition device 9, thermocouple device 8, plug 4, fuel delivery hose 3 and mass flow meter 1.

[0051] A groove is opened at the bottom of slider 2 and connected with slide 7; slider 2 is slidably connected with slide 7 through the groove;

[0052] The cartridge burner is installed on slider 2.

[0053] The cartridge burner is movably arranged on slide 7 through slider 2,

[0054] The position of the fire source can be fixed by inserting plug 4 on slider 2 into one of jacks 6 on slide 7; plug 4 is arranged close to the cartridge burner;

[0055] Further, the distance between two adjacent jacks 6 is 1cm, slider 2 is placed on slide 7, and slider 2 and slide 7 have the characteristics of being clamped and movable;

[0056] The distance between two fire sources is measured by the distance of each jack 6 of slide 7.

[0057] Wood board 13 is laid in the gap between two sliders 2 and the empty space of slide 7, which is used to close the gap of slide 7.

[0058] The measuring unit comprises mass flow meter 1 connected in the middle of fuel delivery hose 3, which is used to detect the fuel release rate and control the fuel release rate through the switch;

[0059] Thermocouple device 8 is fixed above slider 2, which is used to measure the temperature of the fire source;

[0060] The ignition device unit is remote control electric arc ignition device 9, and slider 2 fixes remote control electric arc ignition device 9, which can simultaneously ignite double fire sources through remote control electric arc ignition device 9, solving the problem of how to simultaneously ignite double fire sources, and increasing the convenience and safety of the device.

[0061] Computer: connected with mass flow meter 1 and thermocouple device 8;

[0062] The control of the size of the double fire source combustion rate is realized by controlling the speed of the combustible, which is reflected by the thermocouple device 8. The size of the release rate is controlled by opening the combustible switch valve, and is reflected by the mass flow meter 1 arranged on the fuel delivery hose 3.

[0063] Further, an experimental method for studying the tunnel double fire source combustion characteristic distance adjustable fire source device is used, including the following steps:

[0064] S1, debugging before experiment: test the remote control arc ignition device 9, ensure that the instrument works normally before the experiment starts and can be used at the same time;

[0065] Test the thermocouple device 8, ensure that the thermocouple device 8 is installed in the correct position, the working state is good and the temperature acquisition instrument and the computer are connected normally;

[0066] Test the measurement unit to ensure that the mass flow meter 1 can be used normally and can display the fuel release rate;

[0067] S2, arrangement of the sliding block 2: according to the needs of the experiment, arrange the sliding block 2, adjust the distance between the two fire sources on the slide 7, and fix it through the bolt 4, and use the wooden board 13 to close the gap of the slide 7;

[0068] S3, placement of fuel: connect the fuel tank required by the experiment with the fuel delivery hose 3, and prepare to start the experiment;

[0069] S4, open the thermocouple device 8, open the computer to record the experimental data collected by the temperature measuring device and the measuring device;

[0070] S5, open the adjusting valve of the fuel tank, ignite the cartridge furnace burner by the remote control arc ignition device 9 and can keep burning by itself, adjust the valve to the required combustion release rate.

[0071] When the combustion is over, observe the combustion state, save the data detected by the thermocouple device 8 in the computer;

[0072] S6, wait for the device temperature to recover to normal temperature, and place the device, the experiment is over.

[0073] Analysis of experimental data: obtain the double fire source combustion temperature distribution through the thermocouple device 8;

[0074] Respectively, each factor influences the mechanism of the tunnel double fire source fire, and clarifies the degree, characteristics and evolution law of the tunnel double fire source fire combustion under different conditions.

[0075] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0076] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope defined by the claims of the utility model.

Claims

1. A tunnel double fire source combustion characteristic interval adjustable fire source device for studying tunnel double fire source combustion characteristics, characterized in that, The utility model relates to a kind of portable fire source, including: Slide (7), the slide (7) is arranged in box body; Two sliders (2), the slider (2) is slidably matched with the slide (7) by the groove opened in bottom, the slider (2) is used to install fire source, the slider (2) is limit matched with the slide (7); Fuel source, connect with the fire source, for fuel supply; Ignition part, installed on the slider (2), for the fire source ignition; Temperature sensing part, installed on the slider (2), for detecting fire source temperature.

2. The fire source device with adjustable spacing for studying the combustion characteristics of tunnel double-fire according to claim 1, wherein: The fuel source includes fuel delivery hose (3) connected with the fire source, one end of the fuel delivery hose (3) is communicated with hose external gas tank mouth (11) after passing through the soft tube via hole (12) opened in the bottom of the slider (2) and the slide (7), and the hose external gas tank mouth (11) is used to communicate with gas tank; Flow detection part for detecting gas flow is communicated in the middle of the fuel delivery hose (3).

3. The fire source device with adjustable spacing for studying the combustion characteristics of tunnel double-fire according to claim 2, characterized in that: The flow detection part includes mass flow meter (1), and the mass flow meter (1) is communicated and arranged in the middle of the fuel delivery hose (3).

4. The fire source device with adjustable spacing for studying the combustion characteristics of tunnel double-fire according to claim 1, characterized in that: The slide (7) is provided with a plurality of plug-in holes (6) at equal intervals along the length direction, any plug-in hole (6) is limit matched with plug (4), and the plug (4) is vertically slidably arranged on the slider (2).

5. The fire source device of claim 1, wherein the distance between the two fire sources is adjustable. The ignition part includes remote control electric arc ignition device (9), and the remote control electric arc ignition device (9) is fixedly connected to the slider (2).

6. The fire source device of claim 1, wherein: The temperature sensing part includes thermocouple device (8), and the thermocouple device (8) is fixedly connected to the slider (2).

7. The fire source device of claim 1, wherein the distance between the two fire sources is adjustable. The slide (7) is fixedly connected with supporting leg (10) at the bottom.

8. The fire source device of claim 1, wherein the distance between the two fire sources is adjustable. The gap between the two sliders (2) and the free space of the slide (7) are paved with wooden board (13).

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