CN218721463U - Combustor device of combustion dummy system under condition of bombing - Google Patents
Combustor device of combustion dummy system under condition of bombing Download PDFInfo
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- CN218721463U CN218721463U CN202221196215.1U CN202221196215U CN218721463U CN 218721463 U CN218721463 U CN 218721463U CN 202221196215 U CN202221196215 U CN 202221196215U CN 218721463 U CN218721463 U CN 218721463U
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Abstract
The invention discloses a burner device of a combustion dummy system under a flashover condition, which belongs to the technical field of protective clothing performance test and comprises the following components: the device comprises a shell, an adjusting device and a bracket; the rear end of the shell is connected with a spray head, a spray nozzle is embedded in the spray head, the spray head is connected with a fuel gas supply device through a pipeline, and a pressure regulating valve and a fuel gas electromagnetic valve are arranged on the pipeline between the spray head and the fuel gas supply device; the shell is fixedly connected to the support through an adjusting device, an igniter is fixedly arranged on the adjusting device, an ignition end of the igniter is located at the front end of the shell, and the adjusting device can adjust the angle and the height between the igniter and the shell; wherein, the igniter, the pressure regulating valve and the gas electromagnetic valve are connected with an external computer. The size of the burner shell and the size of the air inlet are changed, so that the volume of premixed gas is increased, the premixing ratio of air and propane is controlled, and the gas pressure is adjusted in a matching manner, so that a simulated bombing wrapped combustion dummy is realized.
Description
Technical Field
The invention relates to the technical field of protective clothing performance testing, in particular to a combustor device of a combustion dummy system under a flashover condition.
Background
At present, related standards such as GA10-2014 fire-fighting protective clothing for firefighters, GB8965.1-2009 flame-retardant protective clothing and the like are mainly adopted for evaluating the thermal protection performance of the fabric in China. The standard is measured by a Stoll human body second-level burn curve from the physiological angle of a human body through TPP and TPE values representing heat transfer performance of the fabric in a heat exposure stage and heat released by heat accumulation of clothes in a cooling stage, and reflects the overall heat protection performance of the fabric.
TPP and TPE values are adopted in standards such as GA10-2014 'firefighter fire-extinguishing protective clothing' and GB8965.1-2009 'flame-retardant protective clothing' to measure the thermal protection performance of the fabric in a thermal exposure stage, and a heat source adopted in the test method is a Bunsen burner, and if the Bunsen burner is adopted as a burner of GB/T23467-2009 'test system for burning dummy under a bombing condition', the following defects exist:
1. the flame length is not enough, and the flame can not wrap the combustion dummy to form the flashover effect. The front end of the existing bunsen burner structure is provided with X combustion holes, so that the pressure of mixed gas at the position of a bunsen burner nozzle is further dispersed, and the flame length of the existing bunsen burner is about 200mm generally. Thus, when 6 bunsen burners are simultaneously ignited, flashover cannot be generated and flames can wrap combustion dummy; 2. the height and angle of the flame of the burner can not be adjusted. The heat of individual sensors on the surface of the combustion dummy cannot be adjusted.
Disclosure of Invention
The present invention addresses the above-identified problems by providing a burner apparatus for a combustion dummy system under a flashover condition.
The technical scheme adopted by the invention is as follows: a burner apparatus for a combustion dummy system in a flash condition, comprising: the device comprises a shell, an adjusting device and a bracket;
the rear end of the shell is connected with a spray head, a nozzle is embedded in the spray head, the spray head is connected with a fuel gas supply device through a pipeline,
a pressure regulating valve and a gas electromagnetic valve are arranged on a pipeline between the spray head and the gas supply device;
the shell is fixedly connected on the bracket through the adjusting device,
the adjusting device is fixedly provided with an igniter, the ignition end of the igniter is positioned at the front end of the shell,
the adjusting device can adjust the angle and height of the igniter and the shell;
the igniter, the pressure regulating valve and the gas electromagnetic valve are connected with an external computer.
Furthermore, the interior of the spray head is of a porous structure.
Furthermore, the nozzle is provided with 8 auxiliary gas holes and 1 main gas hole,
the auxiliary gas holes have the same size, the main gas hole has the size larger than that of the auxiliary gas hole,
the 8 auxiliary gas holes are circumferentially arranged, and the main gas hole is positioned in the center of the 8 auxiliary gas holes;
correspondingly, the hole on the sprayer is opposite to the main gas hole and the auxiliary gas hole on the nozzle in position, and the sizes of the holes are matched.
Further, a premix chamber is between the nozzle and the front end of the housing.
Furthermore, an air inlet is arranged on the shell and is positioned at the rear end of the shell, and the air inlet is communicated with the premixing cavity.
Furthermore, the air inlet hole is provided with a plurality of air inlet holes, and the air inlet holes are in an oval shape.
Furthermore, the number of the air inlet holes is 6,
wherein, 6 the inlet port uses the shower nozzle is the circumference mode and arranges.
Still further, the adjusting device includes: a base and a positioning mechanism, wherein the base is provided with a positioning hole,
the upper end and the lower end of the base are respectively provided with an arc-shaped through slot hole,
the positioning mechanism is fixedly connected on the base,
wherein the bracket is provided with a chute, two square nuts are arranged in the chute, the base is fixedly connected with the bracket through bolts and the arc-shaped through long holes and the square nuts,
the positioning mechanism is used for fixedly connecting the igniter and a pipeline for connecting the nozzle and the gas supply device to the base.
Still further, the positioning mechanism includes: a plurality of positioning screws and a plurality of limiting blocks;
the upper end and the lower end of the limiting block are provided with through holes,
correspondingly, the base is provided with a threaded hole matched with the through hole,
the middle part of the limiting block is provided with a groove,
wherein the igniter and the pipeline between the gas supply devices are limited in the groove,
the limiting block is fixedly connected with the base through the positioning screw via the through hole and the threaded hole.
The invention has the beneficial effects that:
1. the length is adjustable, and the maximum length can reach 500mm, through the aperture of designing 8 auxiliary nozzle of 1 main nozzle and control nozzle, the cooperation is adjusted gas pressure and then can be changed the flame length of combustor.
2. The heat basically meets the requirement, the size of the premixed gas is increased by changing the size of the shell of the burner and the size of the air inlet, the premixing ratio of air and propane is further controlled, the gas pressure is adjusted in a matching way, so that the heat basically meets the standard requirement, and the purpose that a deflagration wrapped combustion dummy cannot be simulated is realized.
3. The flame height and angle can be adjusted. The fine adjustment of the flame of the combustor is realized through the angle and height adjusting device, the surface heat of the combustion dummy is uniform, and the standard requirement of +/-5% of heat deviation of 120 sensors is basically met.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of a group of burners according to an embodiment of the invention;
FIG. 2 is a schematic view of an air intake structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a housing according to an embodiment of the present invention;
FIG. 4 is a schematic view of an internal nozzle of the spray head according to an embodiment of the present invention;
FIG. 5 is a schematic view of a burner arrangement according to an embodiment of the invention;
FIG. 6 is a schematic view of a showerhead according to an embodiment of the present invention;
fig. 7 is a schematic view of an adjustment device according to an embodiment of the invention.
Reference numerals are as follows:
1 is the casing, and 2 is the support, and 3 is the shower nozzle, and 4 is pressure regulating valve, and 5 are gas solenoid valve, and 6 are premixing chamber, and 7 is some firearm, and 8 are the inlet port, and 9 are main gas hole, and 10 are for assisting the gas hole, and 11 are the base, and 12 run through the slot hole for the arc, and 13 is the stopper.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 7, as shown in fig. 1 to 7, a burner apparatus of a combustion dummy system in a flash-over condition includes: the device comprises a shell 1, an adjusting device and a bracket 2;
the rear end of the shell 1 is connected with a spray head 3, the spray head 3 is embedded with a nozzle, the spray head is connected with a fuel gas supply device through a pipeline,
a pressure regulating valve 4 and a gas electromagnetic valve 5 are arranged on a pipeline between the spray head and the gas supply device;
the shell 1 is fixedly connected to the bracket 2 through the adjusting device,
an igniter 7 is fixedly arranged on the adjusting device, the ignition end of the igniter 7 is positioned at the front end position of the shell 1,
the adjusting device can adjust the angle and height of the igniter 7 and the shell 1;
wherein, the igniter 7, the pressure regulating valve 4 and the gas electromagnetic valve 5 are connected with an external computer.
The main invention of the scheme is that firstly, the flame length is adjustable, and the jet length of the fuel gas is controlled by controlling the fuel gas pressure, so that the control of the flame length is realized; its two, angle adjusting device's setting can realize the angle and the altitude mixture control of shower nozzle to the realization is to the burning of false each side, makes simulation actual scene more lifelike, for the scene simulation of the actual burning dummy of more accurate going on, can set up the support into a plurality ofly, and the casing sets up into a plurality ofly, and sets up two casings on every support, connects another flame on every support promptly and spouts the source.
The spray head adopts a porous form and mainly has the function of guiding the spraying direction of flame;
in addition, a flame detector is also arranged at the front port of the shell;
wherein, the lighter adopts the electron mode of striking sparks, and when needs were lighted, outer antithetical couplet computer control gas solenoid valve opened, and the ignition of lighter is controlled after that, starts flame detector after that and detects flame, if flame normally erupts, flame detector feedback signal gives the computer, and computer control flame detector stop work, when flame normally erupts, computer control lighter ignites again, has detected flame until flame detector.
In one embodiment of the invention, the nozzle is provided with 8 auxiliary gas holes 10 and 1 main gas hole 9, the sizes of the auxiliary gas holes 10 are consistent, the size of the main gas hole 9 is larger than that of the auxiliary gas hole 10,
the 8 auxiliary gas holes 10 are arranged in a circumferential mode, and the main gas hole 9 is positioned in the center of the 8 auxiliary gas holes 10;
correspondingly, the holes in the spray head 3 are opposite to the main gas holes 9 and the auxiliary gas holes 10 in the nozzle, and the sizes of the holes are matched.
It should be noted that, through placing the shower nozzle in the combustor rear end, make the gas spout from main auxiliary nozzle with certain pressure, the hole in shower nozzle center and the main gas aperture phi 2mm phase-match on the nozzle, peripheral hole and 8 on the nozzle assist the combustion-supporting gas aperture phi 1.7mm phase-match, through adjusting the aperture size of main auxiliary gas hole, and the gas pressure of gas pipeline, control the flame size and the length of combustor, make propane gas reach abundant burning.
In one embodiment of the present invention, a premixing chamber 6 is disposed between the nozzle and the front end of the housing 1.
It should be noted that the middle of the shell is a premixing cavity for air and gas, the rear part is an air inlet and a burner nozzle, the volume of the premixing cavity is enlarged by changing the size of the shell and the size of the air inlet, the premixing ratio of air and propane mixed gas is further controlled, and the heat of 120 sensors on the surface of the combustion dummy basically meets the standard requirements by adjusting the gas pressure, so that the effect of wrapping the combustion dummy by flame of a burner and simulating a fire scene is realized.
The premixing cavity mainly has the function of providing space for mixing air and fuel gas;
in addition, the shell is a cylindrical hollow structure, the size of the shell is phi 65mm, and the length of the shell is 150mm.
In an embodiment of the present invention, an air inlet 8 is disposed on the housing, the air inlet 8 is located at the rear end of the housing 1, and the air inlet 8 is communicated with the premixing chamber 6; wherein, the rear end of the shell is provided with a rear cover, and the air inlet is arranged on the rear cover.
In an embodiment of the present invention, the air inlet holes are provided in a plurality, and the air inlet holes are elliptical.
In an embodiment of the present invention, there are 6 air inlet holes 8, wherein the 6 air inlet holes 8 are arranged in a circumferential manner with a center line point of the nozzle 3 as a center.
It should be noted that the main function of the air inlet is to control the premixing ratio of air and fuel gas within the range of 0.2-0.8 to ensure that the burner can provide enough heat and maintain a good flame shape, wherein the oxygen supply is in a self-priming manner.
In an embodiment of the present invention, the adjusting device includes: a base 11 and a positioning mechanism, wherein,
opposite arc-shaped through long holes 12 are respectively arranged at the upper end and the lower end of the base 11,
the positioning mechanism is fixedly connected on the base 11,
wherein, the bracket 2 is provided with a sliding chute, two square nuts are arranged in the sliding chute, the base 11 is fixedly connected with the bracket 2 through bolts and the arc-shaped through long holes 12 and the threaded holes,
the igniter 7 and a pipeline connecting the nozzle and the gas supply device are fixedly connected on the base 11 by the positioning mechanism.
It should be noted that the adjusting device is used for adjusting the angle and height of the shell and the igniter;
the angle adjusting process comprises the steps of loosening the bolt, rotating the base to a certain angle, and then tightening the bolt, so that the angle adjustment of the igniter and the shell is realized;
the altitude mixture control process does, and the spout bottom is equipped with a plurality of screw holes, and bottom breaks away from in through unscrewing bolt and the spout, and bolt and square nut do not break away from this moment, then can reciprocate the base, remove in the square nut spout, when removing suitable height, are connected the screw hole of bolt and spout bottom, realize fixing the not co-altitude on the support with the base.
In an embodiment of the present invention, the positioning mechanism includes: a plurality of positioning screws and a plurality of limiting blocks 13;
the upper end and the lower end of the limiting block 13 are provided with through holes,
correspondingly, a second threaded hole matched with the through hole is arranged on the base 11,
the middle part of the limiting block 13 is provided with a groove,
wherein the igniter 7 and the pipeline between the gas supply devices are limited in the groove,
the limiting block 13 is fixedly connected with the base 11 through the positioning screw via the through hole and the threaded hole.
It should explain that, the effect of stopper is fixed igniter and gas supply pipe, and wherein, the recess that sets up can effectually carry out the joint to igniter and gas supply pipe, is being connected the in-process with stopper and base, both can avoid some firearm and gas supply pipe extrusion deformation, can make some firearm and gas supply pipe firm connection on the base again.
In addition, the distance between the igniter and the front end of the shell can be adjusted by loosening the positioning screw for fixing the igniter, so that the distance between the igniter and the mixed gas can be adjusted;
the distance between the shell and the dummy can be adjusted by loosening the positioning screws for fixing the pipeline, so that the distance between the combustion flame and the dummy can be adjusted;
when the burner device of the combustion dummy system under the condition of bombing combustion provided by the invention is used, a combustion dummy model is taken as a center, 6 brackets are arranged on the circumference with the radius of 40cm-50cm, each bracket is provided with one or two shells, the included angle between the adjacent brackets is 60 degrees,
then, the angle and the height of the shell on each bracket are adjusted through the adjusting device, so that the distance, the height and the angle between the spray head and the dummy model are required,
then, the computer controls the gas electromagnetic valve to be opened, gas is sprayed out of the gas supply device, then, the pressure regulating valve is controlled to be opened by observing the flame length, the pressure of the gas is regulated, a stable heat source is formed to wrap the dummy model, and therefore the real flashover environment of the fire scene is simulated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A burner apparatus for a combustion dummy system in a flash condition, comprising: the device comprises a shell, an adjusting device and a bracket;
the rear end of the shell is connected with a spray head, a nozzle is embedded in the spray head, the spray head is connected with a fuel gas supply device through a pipeline,
a pressure regulating valve and a gas electromagnetic valve are arranged on a pipeline between the spray head and the gas supply device;
the shell is fixedly connected to the bracket through the adjusting device,
an igniter is fixedly arranged on the adjusting device, the ignition end of the igniter is positioned at the front end of the shell,
the adjusting device can adjust the angle and height of the igniter and the shell;
the igniter, the pressure regulating valve and the gas electromagnetic valve are connected with an external computer.
2. The burner apparatus of a combustion dummy system at a flash condition of claim 1, wherein the interior of the showerhead is a porous structure.
3. The burner apparatus of a combustion dummy system at a flash condition of claim 2, wherein the nozzle has 8 secondary gas holes and 1 primary gas hole,
the auxiliary gas holes have the same size, the main gas hole has the size larger than that of the auxiliary gas hole,
the 8 auxiliary gas holes are circumferentially arranged, and the main gas hole is positioned in the center of the 8 auxiliary gas holes;
correspondingly, the hole on the sprayer is opposite to the main gas hole and the auxiliary gas hole on the nozzle in position, and the sizes of the holes are matched.
4. The combustor apparatus of a combustion dummy system at a flash condition of claim 1, wherein a premix chamber is between the nozzle and the forward end of the housing.
5. The burner apparatus of a combustion dummy system at a flash condition of claim 4, wherein the housing has an air inlet hole therein, the air inlet hole being located at a rear end of the housing, and the air inlet hole being in communication with the premixing chamber.
6. The burner apparatus of a combustion dummy system at a flash condition of claim 5, wherein the air intake hole is provided in plurality and the air intake hole is oval in shape.
7. The burner apparatus of a combustion dummy system at a flash condition of claim 6, wherein there are 6 air inlet holes,
wherein, 6 the inlet port uses the shower nozzle is the circumference mode and arranges.
8. The burner apparatus of a combustion dummy system at a flash condition of claim 1, wherein the adjustment apparatus comprises: a base and a positioning mechanism, wherein the base is provided with a positioning hole,
the upper end and the lower end of the base are respectively provided with an arc-shaped through slot hole,
the positioning mechanism is fixedly connected on the base,
wherein the bracket is provided with a chute, two square nuts are arranged in the chute, the base is fixedly connected with the bracket through bolts and the arc-shaped through long holes and the square nuts,
the positioning mechanism is used for fixedly connecting the igniter and a pipeline for connecting the nozzle and the gas supply device to the base.
9. The burner apparatus of a combustion dummy system at a flash condition of claim 8, wherein the positioning mechanism comprises: a plurality of positioning screws and a plurality of limiting blocks;
the upper end and the lower end of the limiting block are provided with through holes,
correspondingly, the base is provided with a threaded hole matched with the through hole,
the middle part of the limiting block is provided with a groove,
wherein the igniter and the pipeline between the gas supply devices are limited in the groove,
the limiting block is fixedly connected with the base through the positioning screw via the through hole and the threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221196215.1U CN218721463U (en) | 2022-05-17 | 2022-05-17 | Combustor device of combustion dummy system under condition of bombing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221196215.1U CN218721463U (en) | 2022-05-17 | 2022-05-17 | Combustor device of combustion dummy system under condition of bombing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218721463U true CN218721463U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221196215.1U Active CN218721463U (en) | 2022-05-17 | 2022-05-17 | Combustor device of combustion dummy system under condition of bombing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218721463U (en) |
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- 2022-05-17 CN CN202221196215.1U patent/CN218721463U/en active Active
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