CN218674624U - Testing device for flowing fire research - Google Patents
Testing device for flowing fire research Download PDFInfo
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- CN218674624U CN218674624U CN202222837779.5U CN202222837779U CN218674624U CN 218674624 U CN218674624 U CN 218674624U CN 202222837779 U CN202222837779 U CN 202222837779U CN 218674624 U CN218674624 U CN 218674624U
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Abstract
The utility model provides a testing device for the study of flowing fire, which comprises a cover body, a flowing groove arranged in the cover body, an oil supply system for supplying fuel oil to the flowing groove, and a combustion system acting on the flowing groove; the flowing groove is fixed on a lifting platform, four corners of the bottom of the lifting platform are respectively hinged and supported through telescopic rods, and the bottom of each telescopic rod is hinged and fixed to the bottom of the cover body. The flowing groove provided by the utility model can freely change the telescopic length by adjusting the telescopic quantity of the telescopic rods at the four corners of the bottom of the lifting platform, so that the inclination angle of the flowing groove can be conveniently adjusted to meet the requirement on inclination in a flowing fire experiment, and the flowing groove can continuously adjust the angle within a certain angle range, and is convenient to use; the relation between the flowing fire characteristic and the inclination angle of the flowing plane can be obtained, and the spreading characteristic of the flowing fire can be researched.
Description
Technical Field
The utility model relates to a fuel trickling fire test technical field especially relates to a testing arrangement for trickling fire research.
Background
With the increasing demand of electric power, the capacity of electric power equipment is also increasing (especially extra-high voltage equipment), more and more equipment faces the high-load operation condition, and the risk of ignition of a large amount of high-voltage, large-current, high-energy-storage and flammable and explosive equipment in a transformer substation is also increasing; in addition, in some substations using fuel oil as fuel oil, the use places of the converter stations are affected by the aging of machines or other external factors, and accidents of fuel oil leakage occur sometimes.
If a fire breaks out, the fuel can spread under the environmental conditions of different wind speeds, ground slopes and the like due to the flowing performance of the fuel to form flowing fire, so that the combustion range is expanded, and property loss is increased. Therefore, it is necessary to develop a corresponding experimental study of the drooling fire for the variation trend of fuel combustion under different gradients and wind speeds, so as to measure some thermophysical parameters of the fuel flame, such as flame temperature, height, area, oscillation frequency, flame spread rate, heat release rate, and mass loss rate.
For a transformer substation, the combustion characteristic of the flowing fire formed by fuel oil combustion is known, the device and the method have important reference significance for building a transformer substation fire protection system and selecting the amount of fire protection media, and the invention patent application with the publication number of CN111855888A discloses a small-scale flowing fire simulation experiment device and method capable of adjusting the slope and the underlying surface. However, the inclination of the slope can only be adjusted at intervals, the adjustment process is complex, experimental research is inconvenient to develop, and in addition, the influence of conditions such as wind speed on flowing fire is not considered in the scheme, so that the real environment of the transformer substation cannot be completely simulated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a testing arrangement for trickling fire research that can electrodeless adjustment inclined plane slope is provided.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a testing device for flowing fire research comprises a cover body, a flowing groove arranged in the cover body, an oil supply system for supplying fuel oil to the flowing groove, and a combustion system acting on the flowing groove; the flowing groove is fixed on a lifting platform, four corners of the bottom of the lifting platform are respectively hinged and supported through telescopic rods, and the bottom of each telescopic rod is hinged and fixed to the bottom of the cover body.
The flowing groove provided by the utility model can freely change the stretching length by adjusting the stretching amount of the stretching rods at the four corners of the bottom of the lifting platform, so as to conveniently adjust the inclination angle of the flowing groove, thereby meeting the requirement of the flowing fire experiment on the inclination, and the flowing groove can continuously adjust the angle within a certain angle range, and is convenient to use; the relation between the flowing fire characteristic and the inclination angle of the flowing plane can be obtained, and the spreading characteristic of the flowing fire can be researched.
Preferably, a fan is further arranged outside the cover body, and the blowing direction of the fan is perpendicular to the inclination direction of the flowing groove.
Preferably, the side face of the cover body is provided with an air door, and the fan is arranged on the outer side of the air door; the wind speed of the fan can be continuously adjusted.
Preferably, the oil supply system comprises an oil storage barrel connected with the flowing groove through a hose, the oil storage barrel is positioned outside the cover body, and the hose is provided with a peristaltic pump and a check valve.
Preferably, the oil storage barrel is placed on a weighing platform, and a heat insulation layer is wrapped on the outer layer of the hose in the cover body.
Preferably, the combustion system comprises an ignition gun arranged at the oil inlet end of the trickling tank and an oil collecting tank connected with the oil outlet end of the trickling tank through an oil outlet pipe.
Preferably, the ignition gun is connected with an ignition switch outside the cover body through a cable, and the ignition gun is relatively fixed with the flowing groove.
Preferably, the cover body top still is provided with fire extinguishing system, fire extinguishing system is including being fixed in the mounted frame of cover body top, the mounted frame hangs and is connected with the fire extinguishing agent spout, still be provided with tension sensor between mounted frame and the fire extinguishing agent spout, the fire extinguishing agent spout passes through the fire control pipeline and is connected with the fire extinguishing agent storage tank that is in outside the cover body.
Preferably, the intelligent flow meter further comprises a data acquisition system, the data acquisition system comprises thermocouple strings, a camera and an infrared radiometer, at least one thermocouple string is arranged on each of two sides of the flow groove, a plurality of thermocouples are arranged on the thermocouple strings in the vertical direction, the camera is aligned with the flow groove, and the infrared radiometer is arranged on the outer side of the cover body and aligned with the cover body for detection.
The utility model provides a testing arrangement for trickling fire research's advantage lies in: the flowing groove can freely change the telescopic length by adjusting the telescopic amount of the telescopic rods at the four corners of the bottom of the lifting platform, so that the inclination angle of the flowing groove can be conveniently adjusted to meet the requirement on inclination in a flowing fire experiment, and the flowing groove can continuously adjust the angle within a certain angle range and is convenient to use; the relation between the flowing fire characteristic and the inclination angle of the flowing plane can be obtained, and the spreading characteristic of the flowing fire is researched; the fuel and the fire source are provided for the flowing groove through the fuel supply system and the combustion system, and the flow and the fire behavior are conveniently controlled. The experimental analysis of the flowing fire under different slopes is realized through the flowing groove with the adjustable inclination angle, the fan can provide different wind power conditions for the experiment, the flowing fire state under different slopes and wind power is simulated, the temperature change condition and the combustion process image of the cover body in the experimental process are collected through the data acquisition system, the subsequent analysis is convenient, the flowing groove automatically supplies oil through the oil supply system, the use is convenient, the process of the flowing fire fighting operation can also be simulated based on the fire fighting system, the guidance is provided for building the fire fighting system in an actual scene, the flowing fire can be conveniently obtained through image processing and analysis, the parameters such as spreading speed, flame height, flame oscillation frequency and the like, the combustion characteristic of the flowing fire can be conveniently mastered, the theoretical basis and the guidance are provided for the fire fighting design of related buildings.
Drawings
Fig. 1 is a schematic view of a testing apparatus for fire sagging research according to an embodiment of the present invention;
fig. 2 is a schematic view of a combustion system of a testing device for a sagging fire research according to an embodiment of the present invention;
fig. 3 is a schematic view of a telescopic rod of a testing device for fire sagging research according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a fire protection system of a testing device for a fire drooling research according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below in detail and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a testing apparatus for fire sagging research, which includes a housing 305, a sagging groove 303 disposed in the housing 205, an oil supply system for supplying fuel to the sagging groove 303, and a combustion system acting on the sagging groove 303; referring to fig. 2, the flowing groove 303 is fixed on a lifting platform 304, four corners of the bottom of the lifting platform 304 are respectively supported by an expansion rod 307 in an articulated manner, and the bottom of the expansion rod 307 is fixed at the bottom of the cover body 305 in an articulated manner.
The flowing groove 303 provided by this embodiment can freely change the telescopic length by adjusting the telescopic amount of the telescopic rods at the four corners of the bottom of the lifting platform 304, so as to conveniently adjust the inclination angle of the flowing groove 303, thereby meeting the requirement of the flowing fire experiment on inclination, and the flowing groove 303 can continuously adjust the angle within a certain angle range, so that the use is convenient; the relation between the flowing fire characteristic and the inclination angle of the flowing plane can be obtained, and the spreading characteristic of the flowing fire can be researched.
Referring to fig. 1 again, a fan 306 is further disposed outside the housing 305, the fan 306 is disposed on a side surface of the flowing groove 303, and a blowing direction of the fan 306 is perpendicular to an inclined direction of the flowing groove 303. Therefore, the influence of the inclination angle and the wind force on the spreading speed and the characteristics of the flowing fire can be independently researched through the fan 306, and the simulation experiment requirement under the real use environment can be met.
An air door (not shown) is arranged on the side surface of the cover body 305, and the fan 306 is arranged at the air door to provide wind power for blowing air in the cover body 305, and the speed can be adjusted steplessly to meet the requirement of the wind power.
The flowing groove 303 is provided with a long groove with an open surface, fuel oil can flow in the flowing groove 303 under the action of gravity and form flowing fire under the condition of being ignited, and the flowing groove 303 can be fixed on the lifting platform 304 in a bolt, a buckle and other modes and can adjust the gradient along with the inclination of the lifting platform 304; the flowing groove 303 should be made of a high temperature resistant material, and in this embodiment, a steel plate is selected.
Referring to fig. 3, the telescopic link 307 selects a mechanical multi-stage telescopic structure, including multi-stage mutually-nested support sleeves, the accessible sets up the bolt on the support sleeve in the outside to support the support sleeve in the inner layer tightly, from this can adjust the flexible length of each layer, conveniently control the flexible height of the whole telescopic link, or can only set up the bolt that supports the inner layer tightly on outmost support sleeve, carry out quick complex through the push type spring button between other support sleeves and stretch out and draw back, and the length adjustment of outmost two support sleeves of bronze drum realizes the fine setting of flexible length, satisfy the demand of the electrodeless regulation of length. In addition, the telescopic rod 307 may also be a common cylinder, but it should be noted that both the cylinder structure and the gas tube structure of the cylinder should be subjected to fire protection.
The trickling tank 303 is ignited by a combustion system, and with reference to fig. 1 and 2, the combustion system includes an ignition gun 302 disposed at an oil inlet end of the trickling tank 303, and an oil collecting tank 202 connected to an oil outlet end of the trickling tank 303 through an oil outlet pipe 201. The ignition gun 302 is connected with an ignition switch 301 located outside the cover body 305 through a cable, the ignition switch 301 controls the ignition gun 302 to ignite fuel, specifically, an electric spark ignition or an open flame ignition mode can be selected, the ignition gun 302 and the flowing groove 303 are relatively fixed, the position of the flowing groove 303 can be adjusted along with the ignition gun 302, and in this embodiment, the ignition gun 302 is fixed on the lifting platform 304.
In the experiment, redundant fuel oil flows into the oil collecting groove 202 from the oil outlet end, so that the fuel oil is convenient to recycle, the fuel oil is prevented from polluting parts in the cover body, and the cleaning is convenient.
Referring to fig. 1 again, the oil supply system includes an oil storage barrel 102 connected to a flowing groove 303 through a hose 105, the oil storage barrel 102 is located outside the cover body 305, a peristaltic pump 103 and a check valve 104 are arranged on the hose 205, fuel oil is pumped from the oil storage barrel 102 to the flowing groove 303 through the peristaltic pump 103, and the oil supply amount can be controlled by controlling the working state of the peristaltic pump 103, so that the fire behavior is controlled, and experimental research is facilitated. The hose 105 inside the housing 305 is covered with a thermal insulation layer, in this embodiment, aluminum foil paper, and the oil storage tank 102 is placed on a weighing platform 101. The weighing platform 101 preferably uses a scale for recording the mass of fuel fed into the dripping tank 303. The check valve 104 prevents fuel from returning to the barrel 102 and prevents flames from burning directly into the barrel 102 in the event of an accident, improving the safety of the testing device.
Referring to fig. 1 again, a fire extinguishing system is further arranged above the cover body, the fire extinguishing system comprises a suspension bracket 502 fixed above the cover body 305, fire extinguishing agent nozzles 501 are suspended on the suspension bracket 502, referring to fig. 4, the suspension bracket 502 is fixed above the cover body 305, a plurality of fire extinguishing agent nozzles 501 are suspended on the suspension bracket 502 at intervals, a tension sensor 503 is further arranged between each fire extinguishing agent nozzle 501 and the suspension bracket 502, the content of the fire extinguishing agent stored in the fire extinguishing agent nozzles 501 is measured through the tension sensor 503, meanwhile, the fire extinguishing agent nozzles are further connected with a fire extinguishing agent storage tank 505 located on the outer side of the cover body 305 through a fire fighting pipeline 504, and when the storage amount of the fire extinguishing agent in the fire extinguishing agent nozzles 501 is insufficient, the fire extinguishing agent storage tank 505 supplies the fire extinguishing agent to the corresponding fire extinguishing agent nozzles 501, so that fire safety is ensured.
The fire extinguishing agent selected by the fire extinguishing agent nozzle 501 is liquid perfluorohexanone, the height of the fire extinguishing agent storage tank 505 is preferably higher than that of the fire extinguishing agent nozzle 501, so that the fire extinguishing agent can be timely conveyed to the fire extinguishing agent nozzle 501 based on liquid pressure, and the tension sensor 503 is wrapped with a high-temperature resistant material to prevent the fire extinguishing agent from being damaged by flame.
The testing device further comprises a data acquisition system, wherein the data acquisition system comprises thermocouple strings 601, a camera 603 and an infrared radiation instrument 602, one thermocouple string 601 is respectively fixed at the four corners of the lifting platform 304, and a plurality of thermocouples are uniformly fixed on the thermocouple strings 601 at intervals, so that the temperature change condition in the height space around the trickling tank 303 can be accurately monitored, the temperature field change process can be reduced, and the combustion characteristics of the trickling fire can be analyzed. The camera 603 is aligned with the flowing groove 303 to obtain an image of a flame combustion process of the flowing groove 303, so that analysis is facilitated, the infrared radiometer is arranged on the outer side of the cover body 305 to monitor the environmental temperature change inside the cover body 305, and the infrared radiometer and the thermocouple string 601 jointly obtain the temperature field change condition of the combustion process.
The weighing platform 101 can record the change condition of the mass in the combustion process, so as to obtain the mass loss rate; the thermocouple and infrared radiometer 602 are mainly used to measure the temperature change of the flame and the fuel during the experiment.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A testing arrangement for trickle fire research which characterized in that: comprises a cover body, a flowing groove arranged in the cover body, an oil supply system for supplying fuel oil to the flowing groove, and a combustion system acting on the flowing groove; the flowing groove is fixed on a lifting platform, four corners of the bottom of the lifting platform are respectively hinged and supported through telescopic rods, and the bottom of each telescopic rod is hinged and fixed to the bottom of the cover body.
2. The test device for trickling fire research of claim 1, wherein: the cover body is also provided with a fan, and the blowing direction of the fan is vertical to the inclined direction of the flowing groove.
3. The test device for trickling fire research of claim 2, wherein: the side surface of the cover body is provided with an air door, and the fan is arranged on the outer side of the air door; the wind speed of the fan can be continuously adjusted.
4. The test device for trickling fire research of claim 1, wherein: the oil supply system comprises an oil storage barrel connected with the flowing groove through a hose, the oil storage barrel is positioned on the outer side of the cover body, and a peristaltic pump and a check valve are arranged on the hose.
5. The test device for trickling fire research of claim 4, wherein: the oil storage barrel is placed on a weighing platform, and the outer layer of the hose in the cover body is wrapped by a heat insulation layer.
6. The test device for trickling fire research of claim 1, wherein: the combustion system comprises an ignition gun arranged at the oil inlet end of the flowing groove and an oil collecting groove connected with the oil outlet end of the flowing groove through an oil outlet pipe.
7. The test device for trickling fire research of claim 6, wherein: the igniting gun is connected with an igniting switch positioned outside the cover body through a cable, and the igniting gun is relatively fixed with the flowing groove.
8. The test device for trickling fire research of claim 1, wherein: the fire extinguishing system is arranged above the cover body and comprises a suspension bracket fixed above the cover body, a fire extinguishing agent nozzle is connected to the suspension bracket in a suspension mode, a tension sensor is further arranged between the suspension bracket and the fire extinguishing agent nozzle, and the fire extinguishing agent nozzle is connected with a fire extinguishing agent storage tank located outside the cover body through a fire fighting pipeline.
9. The testing device for the study of sagging fires according to claim 1, characterized in that: the intelligent flow meter is characterized by further comprising a data acquisition system, wherein the data acquisition system comprises thermocouple strings, a camera and an infrared radiometer, at least one thermocouple string is arranged on each of two sides of the flow groove, a plurality of thermocouples are arranged on the thermocouple strings in the vertical direction, the camera is aligned with the flow groove, and the infrared radiometer is arranged on the outer side of the cover body and aligned with the cover body to detect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837779.5U CN218674624U (en) | 2022-10-26 | 2022-10-26 | Testing device for flowing fire research |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837779.5U CN218674624U (en) | 2022-10-26 | 2022-10-26 | Testing device for flowing fire research |
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| Publication Number | Publication Date |
|---|---|
| CN218674624U true CN218674624U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222837779.5U Active CN218674624U (en) | 2022-10-26 | 2022-10-26 | Testing device for flowing fire research |
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| CN (1) | CN218674624U (en) |
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2022
- 2022-10-26 CN CN202222837779.5U patent/CN218674624U/en active Active
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