CN105004756B - Burner flame strength detection method and device - Google Patents
Burner flame strength detection method and device Download PDFInfo
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- CN105004756B CN105004756B CN201410168992.9A CN201410168992A CN105004756B CN 105004756 B CN105004756 B CN 105004756B CN 201410168992 A CN201410168992 A CN 201410168992A CN 105004756 B CN105004756 B CN 105004756B
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Abstract
The present invention relates to steel-making blank heating field more particularly to a kind of burner flame strength detection method and apparatus.A kind of burner flame strength detection method is sequentially arranged several blocks of simulation blanks of arrangement along the length direction of burner flame, opens burner and ensure flameholding；Simulation blank is cooled down using cooling water, cooling water flow and cooling water outlet and inlet temperature obtain Fire Radiation heat flow density by the heat Calculation that cooling water is taken away.A kind of burner flame strength detection device includes experiment furnace body, burner, and several blocks of simulation blanks of arrangement are sequentially arranged along the length of flame direction of burner；Simulation blank described in every piece is all independently equipped with a set of cooling water system, and cooling water system equipped with flowmeter and is both provided with temperature sensor in intake-outlet.Mensuration mode of the present invention shields a large amount of hypothesis and experience, directly determines that flame intensity, the model heat-tracking model that experimental result is used directly for scene calculate by the way of quantitative, the Commissioning Analysis time at the scene of reducing.
Description
Technical field
The present invention relates to steel-making blank heating field more particularly to a kind of burner flame strength detection method and apparatus.
Background technology
Industrial furnace in order to realize the control to heating process, generally require to the blank in heating process into trip temperature with
Track calculates, and currently used computational methods are to calculate radiant heating hot-fluid according to electric thermo-couple temperature.Since electric thermo-couple temperature is not
True furnace gas and flame temperature, which is built upon on a large amount of hypothesis and experiential basis, so relative to each
The calculating of situation can all need to use a large amount of experimental data, and this calculation is very high in the experimental cost of starting stage, and
And a large amount of experimental period can be spent；In addition, experiment all carries out in specific stove, once so stove carries out more
Newly or burner arrangement changes, and previous empirical parameter is often invalid, thus needs to re-start experiment；Especially in fire
Radiation intensity on flame length direction can not obtain empirical parameter, need the debugging repeatedly at scene that can just grope to the structure and work
Relevant parameter under condition, this process often influence the production at scene, waste a large amount of man power and material.
Invention content
Technical problem to be solved by the invention is to provide a kind of burner flame strength detection method and devices, it is determined that base
After the location parameter of material, one row is set along length of flame direction and simulates blank, the heat inverse flame taken away by cooling water is long
Spend the corresponding Fire Radiation heat flow density in each position on direction；Which shields a large amount of hypothesis and experience, using quantitative
Mode directly determine flame intensity, improve material heat tracking calculate accuracy.
The invention is realized in this way：A kind of burner flame strength detection method, includes the following steps：
S1：Several blocks of simulation blanks of arrangement are sequentially arranged along the length direction of burner flame, and in the upper table of simulation blank
Blank temperature sensor is arranged in face；According to required condition to be simulated determine the width of simulation blank, simulation blank upper surface with
The spacing of burner axis；
S2：Burner is opened, be adjusted to burner to need the power for measuring flame intensity and ensures flameholding；
S3：Simulation blank is cooled down using cooling water, and collection surface temperature value T, cooling water flow Q, cooling water inlet
Temperature TinWith cooling water outlet temperature Tout；When obtaining surface temperature value T by the heat Calculation that cooling water is taken away, fire everywhere
The corresponding Fire Radiation heat flow density q of flame is strong as the flame under this surface temperature state using the Fire Radiation heat flow density value
Degree, q=(Tout-Tin) * Q * C/A, C is the specific heat capacity of water, and A is simulation blank upper surface surface area.
Further include step S4 after the step S3, changes the size of surface temperature value T by adjusting cooling water flow, often
50 DEG C of repetition step S3 are primary, obtain the flame intensity under each temperature case.
Flameholding described in S2 is specially that the cooling water inflow simulated in blank is opened to maximum, keeps flame stabilization burning
For a period of time, until the collected temperature value of temperature sensor on each simulation blank fluctuates within 5%, it is believed that at this time
Have reached flameholding state.
A kind of burner flame strength detection device, including：
Furnace body is tested, smoke outlet is offered on the experiment furnace body；
It is laid on the insulating lining of experimental furnace inner body wall；
Burner on experiment furnace body；
Several blocks of simulation blanks of arrangement are sequentially arranged along the length of flame direction of burner；
Blank temperature sensor in simulation blank upper surface is set；
Simulation blank described in each piece is all independently equipped with a set of cooling water system, and the intake-outlet of cooling water system is all set
It is equipped with temperature sensor, cooling water system is additionally provided with flowmeter and flow control valve, and all temperature sensors all pass through number
It is connected to temperature acquisition recorder according to line.
The cooling water system includes water pipe and the resistance to material of castable, is flowed to along cooling water, in sequential series on the water pipe
There are cooling water flow meter, cooling water inflow regulating valve, cooling water inlet temperature detection thermal resistance, cooling water outlet temperature detection thermoelectricity
Resistance, the cooling water inlet temperature detection thermal resistance and cooling water outlet temperature detection thermal resistance are connected to temperature by data line
Acquisition and recording instrument；The water pipe is fixedly mounted on the lower surface of simulation blank, and the gap between water pipe and simulation blank is by pouring
The resistance to material filling of material feeding.
The blank temperature sensor shares several, and taking the mean values of several blank temperature sensors to be used as should
Block simulates the surface temperature of blank.
The burner is fixedly mounted on by mounting plate on experiment furnace body.
After burner flame strength detection method and device of the present invention determines the location parameter of blank, along length of flame direction
One row is set and simulates blank, each position on length of flame direction at a temperature of the heat inverse Current surface taken away by cooling water
Corresponding Fire Radiation heat flow density；Which shields a large amount of hypothesis and experience, and fire is directly determined by the way of quantitative
Flame intensity, the model heat-tracking model that experimental result is used directly for scene are calculated, the Commissioning Analysis time at the scene of reducing, are carried
The accuracy that high material heat tracking calculates.
Description of the drawings
Fig. 1 is the schematic front view of burner flame strength detection device in the present invention；
Fig. 2 is the Section A-A figure of Fig. 1；
Fig. 3 is the arrangement enlarged diagram of independent one piece of simulation blank in apparatus of the present invention.
In figure：1 experiment furnace body, 2 insulating linings, 3 burners, 4 flames, 5 water pipes, the resistance to material of 6 castables, 7 simulation blanks, 8
Blank temperature sensor, 9 cooling water inlet temperatures detection thermal resistance, 10 cooling water outlet temperatures detection thermal resistance, 11 cooling waters
Adjustable valve, 12 cooling water flow meters, 13 temperature acquisition recorders, 14 smoke outlets, 15 mounting plates.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after having read the content of the invention stated, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
As shown in Figure 1, 2, 3, a kind of burner flame strength detection device, including：Test furnace body 1, burner 3, simulation base
Expect 7, cooling water system and temperature acquisition recorder 13, smoke outlet 14, usual smoke outlet 14 are offered on the experiment furnace body 1
Shared a pair, a pair of of smoke outlet 14 are symmetricly set on the both sides of experiment furnace body 1, and experiment 1 inner wall of furnace body is equipped with one layer of guarantor
Warm liner 2；
The burner 3 is mounted on by mounting plate 15 on experiment furnace body 1, and the position realization pair of the change mounting plate 15 is passed through
The adjusting of burner height is sequentially arranged several blocks of simulation blanks 7 of arrangement, each piece of simulation along 4 length direction of flame of burner 3
It is commonly installed 1 ~ 20 blank temperature sensor 8 on blank, selects temperature detection thermocouple as blank temperature in the present embodiment
Spend sensor 8；
Simulation blank 7 described in each piece is all independent equipped with a set of cooling water system, and the intake-outlet of cooling water system is all
It is provided with temperature sensor, cooling water system is additionally provided with flowmeter and flow control valve, and all temperature sensors all pass through
Data line is connected to temperature acquisition recorder 13.
In the present invention, the cooling water system includes water pipe 5 and the resistance to material 6 of castable, is flowed to along cooling water, the water
It is in sequential series on pipe 5 to have cooling water flow meter 12, cooling water inflow regulating valve 11, cooling water inlet temperature detection thermal resistance 9, cooling
Water outlet temperature detects thermal resistance 10, and the cooling water inlet temperature detection thermal resistance 9 and cooling water outlet temperature detect thermoelectricity
Resistance 10 is connected to temperature acquisition recorder 13 by data line, to transmit temperature data to temperature acquisition recorder 13；The water
Pipe 5 is fixedly mounted on the lower surface of simulation blank 7, and the gap between water pipe 5 and simulation blank 7 is filled by the resistance to material 6 of castable,
To realize the cooling to simulating blank 7.
A kind of burner flame strength detection method, includes the following steps：
S1：Several blocks of simulation blanks 7 of arrangement are sequentially arranged along the length direction of the flame 4 of burner 3, and in simulation blank
Blank temperature sensor 8 is arranged in upper surface；It is commonly installed 1 ~ 20 blank temperature sensor 8 on each block of simulation blank 7, with this
The average temperature value of a little blank temperature sensors 8 simulates the surface temperature value T of blank 7 as the block；According to required to be simulated
Condition determines the width W of simulation blank, simulates the spacing H of blank upper surface and burner axis；Selection determines the simulation base of width
Material is placed on the required position of simulated conditions, and simulation blank upper surface and the spacing H of burner axis pass through change mounting plate 15
Height adjust, simulation blank is placed in the lower section of burner flame.
S2：Burner 3 is opened, be adjusted to burner 3 to need the power for measuring flame intensity and ensures flameholding；Burning generates
Flue gas be discharged into flue from the smoke outlet 14 of experiment furnace body 1 both sides；The flameholding is, by all cooling water systems
Cooling water flow open to maximum, kept for flame stabilization burning a period of time, until each blank temperature sensor 8 is collected
Temperature value fluctuates within 5%, it is believed that has reached flameholding state at this time.
S3：Simulation blank is cooled down using cooling water, acquires surface temperature value T at this time, cooling water flow Q, cooling water
Inlet temperature TinWith cooling water outlet temperature Tout；When obtaining surface temperature value T by the heat Calculation that cooling water is taken away, everywhere
The corresponding Fire Radiation heat flow density q of flame, using the Fire Radiation heat flow density value as the fire under this surface temperature state
Flame intensity, q=(Tout-Tin) * Q * C/A, C is the specific heat capacity of water, and A is simulation blank upper surface surface area；
S4：The size for changing surface temperature value T by adjusting cooling water flow often increases by 50 DEG C of repetition steps since 50 DEG C
Rapid S3 is primary, until surface temperature value T is 1200 DEG C, obtains the flame intensity under each surface temperature state.
Claims (7)
1. a kind of burner flame strength detection method, characterized in that include the following steps：
S1：Several blocks of simulation blanks of arrangement are sequentially arranged along the length direction of burner flame, and are set in the upper surface of simulation blank
Set blank temperature sensor；Simulation blank described in each piece is all independently equipped with a set of cooling water system, cooling water system into
Water outlet is both provided with temperature sensor, and cooling water system is additionally provided with flowmeter and flow control valve, all temperature sensing
Device is all connected to temperature acquisition recorder by data line；Width, the mould of simulation blank are determined according to required condition to be simulated
The spacing of quasi- blank upper surface and burner axis；
S2：Burner is opened, be adjusted to burner to need the power for measuring flame intensity and ensures flameholding；
S3：Simulation blank is cooled down using cooling water, and collection surface temperature value T, cooling water flow Q, cooling water inlet temperature
TinWith cooling water outlet temperature Tout；When obtaining surface temperature value T by the heat Calculation that cooling water is taken away, flame pair everywhere
The Fire Radiation heat flow density q answered, using the Fire Radiation heat flow density value as the flame intensity under this surface temperature state, q=
(Tout-Tin) * Q * C/A, C is the specific heat capacity of water, and A is simulation blank upper surface surface area.
2. burner flame strength detection method as described in claim 1, it is characterized in that：Further include step after the step S3
S4 changes the size of surface temperature value T by adjusting cooling water flow, and every 50 DEG C of repetition steps S3 is primary, obtains each temperature
Flame intensity under operating mode.
3. burner flame strength detection method as claimed in claim 1 or 2, it is characterized in that：Flameholding tool described in S2
Body is that the cooling water inflow simulated in blank is opened to maximum, is kept for flame stabilization burning a period of time, until on each simulation blank
The collected temperature value of temperature sensor fluctuate within 5%, it is believed that have reached flameholding state at this time.
4. a kind of burner flame strength detection device, characterized in that including：
Furnace body (1) is tested, smoke outlet (14) is offered on the experiment furnace body (1)；
It is laid on the insulating lining (2) of experiment furnace body (1) inner wall；
Burner (3) on experiment furnace body (1)；
Flame (4) length direction along burner (3) is sequentially arranged several pieces of simulation blanks (7) of arrangement；
Blank temperature sensor (8) in simulation blank (7) upper surface is set；
Simulation blank (7) described in each piece is all independent equipped with a set of cooling water system, and the intake-outlet of cooling water system is all set
It is equipped with temperature sensor, cooling water system is additionally provided with flowmeter and flow control valve, and all temperature sensors all pass through number
It is connected to temperature acquisition recorder (13) according to line.
5. burner flame strength detection device as claimed in claim 4, it is characterized in that：The cooling water system includes water pipe
(5) and the resistance to material of castable (6) it, is flowed to along cooling water, it is in sequential series on the water pipe (5) to have cooling water flow meter (12), cooling
Water regulating valve (11), cooling water inlet temperature detection thermal resistance (9), cooling water outlet temperature detection thermal resistance (10), it is described
Cooling water inlet temperature detection thermal resistance (9) and cooling water outlet temperature detection thermal resistance (10) pass through data line and temperature acquisition
Recorder (13) is connected；The water pipe (5) is fixedly mounted on the lower surface of simulation blank (7), water pipe (5) and simulation blank (7)
Between gap pass through the resistance to material of castable (6) fill.
6. burner flame strength detection device as claimed in claim 4, it is characterized in that：The blank temperature sensor (8)
Several are shared, surface temperature of the mean values of several blank temperature sensors (8) as block simulation blank (7) is taken.
7. burner flame strength detection device as claimed in claim 4, it is characterized in that：The burner (3) passes through mounting plate
(15) it is fixedly mounted on experiment furnace body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168992.9A CN105004756B (en) | 2014-04-25 | 2014-04-25 | Burner flame strength detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168992.9A CN105004756B (en) | 2014-04-25 | 2014-04-25 | Burner flame strength detection method and device |
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| Publication Number | Publication Date |
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| CN105004756A CN105004756A (en) | 2015-10-28 |
| CN105004756B true CN105004756B (en) | 2018-11-06 |
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| CN201410168992.9A Active CN105004756B (en) | 2014-04-25 | 2014-04-25 | Burner flame strength detection method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106768794B (en) * | 2016-12-12 | 2019-03-12 | 北京航天长征飞行器研究所 | A kind of long-time high-temperature tunnel experimental cabin |
| CN107101819A (en) * | 2017-06-09 | 2017-08-29 | 滨州学院 | A kind of testing stand and test method for testing oil duct in piston cooling capacity |
| CN114858965B (en) * | 2022-05-09 | 2024-02-09 | 江南造船(集团)有限责任公司 | Open fire construction method close to fuel bulkhead insulation layer |
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| CN201436542U (en) * | 2009-02-24 | 2010-04-07 | 宝山钢铁股份有限公司 | Water cooling device used for experiment furnace simulation material heating |
| CN201707148U (en) * | 2010-05-12 | 2011-01-12 | 罗野 | Continuous measuring device of metal smelting temperature of inductive heating furnace |
| CN101894496A (en) * | 2010-06-08 | 2010-11-24 | 中冶建筑研究总院有限公司 | Circulating cooling water dynamic simulation experimental device applied in metallurgical industry |
| CN202047107U (en) * | 2011-04-13 | 2011-11-23 | 中冶南方(武汉)威仕工业炉有限公司 | Double-burner soaking pit |
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