CN108955291B - Visualization method for gas dilution effect - Google Patents
Visualization method for gas dilution effect Download PDFInfo
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- CN108955291B CN108955291B CN201810670413.9A CN201810670413A CN108955291B CN 108955291 B CN108955291 B CN 108955291B CN 201810670413 A CN201810670413 A CN 201810670413A CN 108955291 B CN108955291 B CN 108955291B
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- combustible gas
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- smoke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
- F27D2021/026—Observation or illuminating devices using a video installation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N2015/0007—Investigating dispersion of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
Abstract
The invention discloses a visualization device for gas dilution effect, which comprises a compressed air source, a flow regulating device, a pressure detection device, a flow detection device, a buffer tank and a color smoke group, wherein the compressed air source is connected with the flow regulating device; the compressed air source, the flow regulating device, the flow detecting device and the buffer tank are sequentially connected through pipelines; the pressure detection device is connected with a pipeline between the flow regulating device and the flow detection device through a pipeline; the color cigarette group comprises a plurality of color cigarettes, and the plurality of color cigarettes are arranged in the buffer tank. The invention also discloses a visualization method of the gas dilution effect. The invention can realize the visualization of the spraying uniformity of the combustible gas in a large space range, intuitively show the effect of uniformly mixing and diluting the combustible gas and air under different spraying parameter conditions, and greatly accelerate the screening speed of various spraying modes and technical parameters.
Description
Technical Field
The invention relates to a visual device and a visual method for gas dilution effect, in particular to a visual judging device and a visual judging method for single-component or multi-component gas mixing dilution speed and effect according to a certain concentration in a large space.
Background
The combustible gas fuel is used as a supplementary heat source of the sintering process, and is sprayed from the surface of the sintering machine material layer after the ignition furnace, so that the quality of the sintering ore can be improved, the yield of the sintering ore can be improved, and the consumption of solid fuel can be reduced. Not only can save energy, but also can reduce the discharge of carbon dioxide, sulfur dioxide and the like. The key point of the technology is the spraying mode of the combustible gas, which directly relates to whether the combustible gas can be uniformly mixed and diluted quickly and then uniformly and safely sprayed into the sinter bed with larger surface area. How are the best solutions to be screened from various gas injection patterns? This requires a technique for rapidly judging the effect of mixing and diluting in the spray method.
The combustible gas (such as coke oven gas, natural gas and the like) and the air are colorless and transparent gases, and the mixing and diluting effects cannot be directly observed by naked eyes. The existing gas dilution effect evaluation method is realized by detecting the concentration of a certain component gas after a plurality of pipelines are mixed in the pipelines according to the required flow. Although the method is accurate, the surface area of the material layer of the sintering machine is larger, and if the number of analyzers for detecting the concentration of the component gas is small, the measurement result is not representative; if the number of the detection analyzers is large, the flow field of the flammable gas spraying area is easily damaged due to the large investment at one time, and the flow field is greatly influenced by the difference among the detection analyzers, so that the flow field is not suitable for preliminary screening of a gas spraying mode.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a visual device and a visual method for quickly judging the mixing and diluting effect of a gas spraying mode, shortens the screening time of the gas spraying mode and technical parameters, and realizes uniform and safe spraying of combustible gas on the material surface of a sintering machine.
The technical scheme for solving the technical problems is as follows:
the invention relates to a visualization device for gas dilution effect, which comprises a compressed air source, a flow regulating device, a pressure detecting device, a flow detecting device, a buffer tank and a color smoke group; the compressed air source, the flow regulating device, the flow detecting device and the buffer tank are sequentially connected through pipelines; the pressure detection device is connected with a pipeline between the flow regulating device and the flow detection device through a pipeline; the color cigarette group comprises a plurality of color cigarettes, and the plurality of color cigarettes are arranged in the buffer tank.
As a further improvement of the technical scheme, the buffer tank comprises an air inlet pipe, a tank body and an air outlet pipe which are connected in sequence; a diversion diffusion plate is arranged in the tank body and divides the tank body into an upper cavity and a lower cavity; the colored smoke is arranged above the diversion diffusion plate; a plurality of round holes are uniformly formed in the diversion diffusion plate; a side hole is formed in the side wall of the upper cavity of the tank body, and the size of the side hole is matched with the size of the color cigarette group; the outside of side opening is provided with sealed lid, is provided with the wire outlet on this sealed lid.
As a further improvement of the technical scheme, the color smoke group further comprises a plurality of power transmission lines, a plurality of switches and a power supply; the switch and the power supply are arranged outside the tank body; one end of each color cigarette penetrates out of the wire outlet hole through the power transmission line and is connected with the negative electrode of the power supply, the other end of each color cigarette penetrates out of the wire outlet hole through the power transmission line and is connected with one end of a switch, and the other end of each switch is connected with the positive electrode of the power supply through the power transmission line.
The other technical scheme for solving the technical problems is as follows:
the invention relates to a visualization method for gas dilution effect, which adopts the visualization device for gas dilution effect in the technical scheme, and comprises the following specific steps:
step 1, placing a plurality of connected colored cigarettes in a tank body of a buffer tank, and connecting the buffer tank with a combustible gas spraying device through a pipeline;
step 2, starting a combustible gas spraying device, and setting technical parameters of the combustible gas spraying device;
step 3, starting a compressed air source so that the compressed air can sequentially pass through a flow regulating device, a pressure detecting device, a flow detecting device, a buffer tank and a combustible gas spraying device;
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device to enable the indication value of the flow detecting device to reach the target flow value;
step 5, igniting one color smoke in the color smoke group, uniformly mixing the released color smoke with compressed air after buffering by a tank body, then feeding the color smoke into a combustible gas spraying device, spraying the color smoke to the upper part of a sinter bed, uniformly mixing the color smoke with air, diluting the mixture, and feeding the diluted mixture into a material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device or replacing other types of flammable gas spraying devices, repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion mixing dilution conditions of different combustible gas spraying devices and various technical parameters thereof.
As a further improvement of the technical scheme, the colored tobacco is a 1-min red stage colored tobacco.
As a further improvement of the technical scheme, the target flow measuring and calculating method of the combustible gas in the step 4 is that the target concentration of the combustible gas to be sprayed is multiplied by the wind speed of the sintered material surface is multiplied by the spraying area.
The other technical scheme for solving the technical problems is as follows:
the gas dilution effect visualization method adopts the gas dilution effect visualization device, and comprises the following specific steps:
step 1, placing a plurality of connected colored cigarettes on a diversion diffusion plate in a tank body of a buffer tank through a side hole, tightly covering a sealing cover on the outer side of the side hole, and then connecting an air outlet pipe of the buffer tank with a combustible gas spraying device through a pipeline;
step 2, starting a combustible gas spraying device, and setting technical parameters of the combustible gas spraying device;
step 3, starting a compressed air source so that the compressed air can sequentially pass through a flow regulating device, a pressure detecting device, a flow detecting device, a buffer tank and a combustible gas spraying device;
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device to enable the indication value of the flow detecting device to reach the target flow value;
step 5, igniting one color smoke in the color smoke group, diffusing the released color smoke along with compressed air through round holes of a diversion diffusion plate, buffering the color smoke in a tank body, uniformly mixing the color smoke, then, entering a combustible gas spraying device through an air outlet pipe, spraying the combustible gas to the upper part of a sinter bed, uniformly mixing the combustible gas with air, diluting the mixture, and then, entering a material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device or replacing other types of flammable gas spraying devices, repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion mixing dilution conditions of different combustible gas spraying devices and various technical parameters thereof.
As a further improvement of the technical scheme, the colored tobacco is a 1-min red stage colored tobacco.
As a further improvement of the technical scheme, the target flow measuring and calculating method of the combustible gas in the step 4 is that the target concentration of the combustible gas to be sprayed is multiplied by the wind speed of the sintered material surface is multiplied by the spraying area.
The other technical scheme for solving the technical problems is as follows:
the visualization method for the gas dilution effect is characterized by comprising the following specific steps of:
step 1, placing a plurality of colored cigarettes connected with a power transmission line on a diversion diffusion plate in a tank body of a buffer tank through side holes; the power transmission line connected with each color cigarette extends out of the buffer tank from the wire outlet hole on the sealing cover, is connected with the switch and the power supply to form a color cigarette group, tightly covers the sealing cover, seals the sealing cover and the wire outlet hole, and then connects the gas outlet pipe of the buffer tank with the combustible gas spraying device through the pipeline;
step 2, starting a combustible gas spraying device, and setting technical parameters of the combustible gas spraying device;
step 3, starting a compressed air source so that the compressed air can sequentially pass through a flow regulating device, a pressure detecting device, a flow detecting device, a buffer tank and a combustible gas spraying device;
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device to enable the indication value of the flow detecting device to reach the target flow value;
step 5, a group of switches are closed, one colored smoke in the colored smoke group is ignited, the released colored smoke is diffused along with compressed air through round holes of a diversion diffusion plate and is buffered in a tank body and then uniformly mixed, and the mixed material enters a combustible gas spraying device through an air outlet pipe and is sprayed to the upper part of a sinter bed, and the mixed material is diluted with air and then enters a material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device or replacing other types of flammable gas spraying devices, repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion mixing dilution conditions of different combustible gas spraying devices and various technical parameters thereof.
As a further improvement of the technical scheme, the colored tobacco is a 1-min red stage colored tobacco.
As a further improvement of the technical scheme, the target flow measuring and calculating method of the combustible gas in the step 4 is that the target concentration of the combustible gas to be sprayed is multiplied by the wind speed of the sintered material surface is multiplied by the spraying area.
Compared with the prior art, the visualization device with the gas dilution effect provided by the invention has the advantages of simple and practical structure, convenience in assembly and low cost; the method for visualizing the gas dilution effect provided by the invention realizes visualization of the combustible gas spraying uniformity in a large space range, more intuitively shows the effect of uniformly mixing and diluting the combustible gas and air under different spraying parameter conditions, and greatly accelerates the screening speed of various spraying modes and technical parameters.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a schematic view of a gas dilution effect visualization apparatus according to the present invention;
FIG. 2 is a schematic view of the structure of the surge tank according to the present invention;
FIG. 3 is a schematic view of a flow guiding diffusion plate according to the present invention;
fig. 4 is a schematic diagram of connection of a color cigarette group according to the present invention;
in the figure: 10. a compressed air source; 20. a flow rate adjusting device; 30. a pressure detection device; 40. a flow rate detection device; 50. a buffer tank; 60. a pipeline; 70. a color cigarette group; 51. an air inlet pipe; 52. a tank body; 53. an air outlet pipe; 54. a diversion diffusion plate; 55. a side hole; 56. sealing cover; 57. a wire outlet hole; 58. a round hole; 71. color smoke; 72. a power transmission line; 73. a switch; 74. a power supply; 80. and a combustible gas spraying device.
Detailed Description
Example 1:
as shown in fig. 1 to 4, the present invention is a gas dilution effect visualization device, which comprises a compressed air source 10, a flow rate adjusting device 20, a pressure detecting device 30, a flow rate detecting device 40, a buffer tank 50 and a color smoke group 70; the compressed air source 10, the flow regulating device 20, the flow detecting device 40 and the buffer tank 50 are sequentially connected through a pipeline 60; the pressure detection device 30 is connected with a pipeline 60 arranged between the flow regulating device 20 and the flow detection device 40 through the pipeline 60; the color cigarette group 70 comprises a plurality of color cigarettes 71, and the plurality of color cigarettes 71 are arranged in the buffer tank 50; the colored smoke 71 can be a common 1min red stage colored smoke, so as to facilitate the assembly of the device and the control of the cost.
Example 2:
as shown in fig. 1 to 4, in order to further illustrate the application effect of the gas dilution effect visualization device, in this embodiment, the buffer tank 50 includes an air inlet pipe 51, a tank body 52, and an air outlet pipe 53, which are sequentially connected to each other, on the basis of embodiment 1; the air inlet pipe 51 is connected with the flow detection device 40 through a pipeline, and the air outlet pipe 53 is connected with the combustible gas spraying device 80 through a pipeline 60 when in use; a diversion diffusion plate 54 is arranged in the tank 52 and divides the tank 52 into an upper cavity and a lower cavity; the colored smoke 71 is arranged above the diversion diffusion plate 54; a plurality of round holes 58 are uniformly formed in the diversion diffusion plate 54 and are used for allowing the colored smoke to enter the lower cavity from the upper cavity when the colored smoke is diffused; a side hole 55 is formed in the side wall of the upper cavity of the tank body 52, the size of the side hole 55 is matched with that of the color smoke group 70, and the color smoke group 70 is conveniently placed on the flow guiding diffusion plate 54 in the tank body 52 from the side hole 55; the outside of the side hole 55 is provided with a sealing cover 56, the sealing cover 56 is provided with a wire outlet 57, and when in use, the sealing cover 56 and the wire outlet 57 are required to be sealed.
Example 3:
as shown in fig. 1 to 4, in order to control the color smoke group 70 conveniently, the color smoke group 70 in this embodiment further includes a plurality of power transmission lines 72, a plurality of switches 73 and a power supply 74 on the basis of embodiment 2; the switch 73 and the power supply 74 are arranged outside the tank 52; one end of each colored cigarette 71 passes through the wire outlet hole 57 through the power transmission line 72 and is connected with the negative electrode of the power supply 74, the other end of each colored cigarette 71 passes through the wire outlet hole 57 through one power transmission line 72 and is connected with one end of one switch 73, and the other end of each switch 73 is connected with the positive electrode of the power supply 74 through the power transmission line 72; the power transmission line 72 is a common insulated wire, and the power supply 74 is a No. 5 battery with the voltage of 1.5V, so that the setting is convenient for controlling the setting off of the colored smoke 71 outside the tank 52 through the switch 73; when the sealing device is applied, the sealing treatment is also carried out between the sealing cover 56 and the side hole 55 at the position where the transmission line 72 and the wire outlet hole 57 need to be sealed.
Example 4:
a visualization method for gas dilution effect adopts a visualization device for gas dilution effect as described in embodiment 1, 2 or 3, and specifically comprises the following steps:
step 1, placing a plurality of connected colored cigarettes 71 in a tank body 52 of a buffer tank 50, and connecting the buffer tank 50 with a combustible gas spraying device 80 through a pipeline 60, wherein the colored cigarettes 71 are red stage colored cigarettes for 1 min;
step 2, starting the combustible gas spraying device 80, and setting technical parameters of the combustible gas spraying device 80 according to the requirements of the combustible gas spraying;
step 3, the compressed air source 10 is opened, so that the compressed air can enter the combustible gas spraying device 80 through the flow regulating device 20, the pressure detecting device 30, the flow detecting device 40, the buffer tank 50 in sequence;
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device 20 to enable the indication value of the flow detecting device 40 to reach the target flow value; in this example, the target concentration of the injected combustible gas was set to 1.34%, the wind speed at the surface of the sintered material was 0.8m/s, and the injection area was 4m 2 The target flow measurement method for measuring the combustible gas is that the target concentration of the combustible gas to be sprayed is multiplied by the wind speed of the surface of the sintered material, namely, the target flow of the combustible gas in the embodiment is=4×0.8×60×60×1.34% =154 m 3 And/h, the flow regulator 20 is adjusted so that the flow detector 40 indicates 154m 3 /h；
Step 5, igniting one colored smoke 71 in the colored smoke group 70, buffering the released colored smoke with compressed air through the tank 52, uniformly mixing, then feeding the mixed colored smoke into the combustible gas spraying device 80, spraying the mixed colored smoke onto the upper part of the sinter bed, uniformly mixing the mixed colored smoke with air, diluting the diluted mixed colored smoke and feeding the diluted colored smoke into the material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette 71 is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device 80 or replacing other types of flammable gas spraying devices 80, repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion, mixing and dilution conditions of the different combustible gas spraying devices 80 and various technical parameters thereof.
Example 5
A visualization method for gas dilution effect adopts a visualization device for gas dilution effect described in embodiment 2, and specifically comprises the following steps:
step 1, placing a plurality of connected colored cigarettes 71 on a diversion diffusion plate 54 in a tank body 52 of a buffer tank 50 through side holes 55, tightly covering a sealing cover 56 outside the side holes 55, sealing the sealing cover 56, and then connecting an air outlet pipe 53 of the buffer tank 50 with a combustible gas spraying device 80 through a pipeline 60, wherein the colored cigarettes 71 are red stage colored cigarettes for 1 min;
step 2, starting the combustible gas spraying device 80, and setting technical parameters of the combustible gas spraying device 80 according to the requirements of combustible gas spraying;
step 3, the compressed air source 10 is opened, so that the compressed air can enter the combustible gas spraying device 80 through the flow regulating device 20, the pressure detecting device 30, the flow detecting device 40, the buffer tank 50 in sequence;
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device 20 to enable the indication value of the flow detecting device 40 to reach the target flow value; in this example, the target concentration of the injected combustible gas was set to 1.34%, the wind speed at the surface of the sintered material was 0.8m/s, and the injection area was 4m 2 The target flow measurement method for measuring the combustible gas is that the target concentration of the combustible gas to be sprayed is multiplied by the wind speed of the surface of the sintered material, namely, the target flow of the combustible gas in the embodiment is=4×0.8×60×60×1.34% =154 m 3 And/h, the flow regulator 20 is adjusted so that the flow detector 40 indicates 154m 3 /h；
Step 5, igniting one colored smoke 71 in the colored smoke group 70, diffusing the released colored smoke along with compressed air through the round holes 58 of the diversion diffusion plate 54, buffering the diffused colored smoke in the tank 52, uniformly mixing the diffused colored smoke, then enabling the diffused colored smoke to enter the combustible gas spraying device 80 through the air outlet pipe 53, spraying the mixed colored smoke to the upper part of the sinter bed, uniformly mixing the mixed colored smoke with air, and diluting the diluted colored smoke and entering the material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette 71 is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device 80 or replacing other types of flammable gas spraying devices 80, repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion, mixing and dilution conditions of the different combustible gas spraying devices 80 and various technical parameters thereof.
Example 6:
as shown in fig. 1 to 4, a method for visualizing a gas dilution effect according to the present invention, which adopts a device for visualizing a gas dilution effect described in embodiment 3, comprises the following specific steps:
step 1, placing 10 colored cigarettes 71 connected with a power transmission line 72 on a diversion diffusion plate 54 in a tank body 52 of a buffer tank 50 through side holes 55, wherein the colored cigarettes 71 are red stage colored cigarettes for 1 min; the transmission line 72 connected with each color cigarette 71 extends out of the buffer tank 50 from the wire outlet hole 57 on the sealing cover 56 and is connected with the switch 73 and the power supply 74 to form a color cigarette group 70, the sealing cover 56 is tightly covered and the positions of the wire outlet holes 57 are sealed, and then the gas outlet pipe 53 of the buffer tank 50 is connected with the combustible gas spraying device 80 through a pipeline;
step 2, starting the combustible gas spraying device 8, and setting technical parameters of the combustible gas spraying device 80 when spraying the combustible gas according to the requirements of the combustible gas spraying;
step 3, the compressed air source 10 is opened, so that the compressed air can sequentially pass through the flow regulating device 20, the pressure detecting device 30, the flow detecting device 40, the buffer tank 50 and enter the combustible gas spraying device 80;
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device 20 to enable the indication value of the flow detecting device 40 to reach the target flow value; in this example, the target concentration of the injected combustible gas was set to 1.34%, the wind speed at the surface of the sintered material was 0.8m/s, and the injection area was 4m 2 The target flow measurement method for measuring the combustible gas is that the target concentration of the combustible gas to be sprayed is multiplied by the wind speed of the surface of the sintered material, namely, the target flow of the combustible gas in the embodiment is=4×0.8×60×60×1.34% =154 m 3 And/h, the flow regulator 20 is adjusted so that the flow detector 40 indicates 154m 3 /h；
Step 5, a group of switches 73 are closed, one colored smoke 71 in the colored smoke group 70 is ignited, the released colored smoke is diffused along with compressed air through the round holes 58 of the diversion diffusion plate 54, is buffered in the tank 52 and then is uniformly mixed, and then enters the combustible gas spraying device 80 through the air outlet pipe 53 to be sprayed to the upper part of the sinter bed, is uniformly mixed with air and is diluted, and then enters the material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for 5 times when one colored cigarette 71 is burned out after 56sec, so that multiple colored cigarette diffusion images can be analyzed;
step 8, after adjusting the technical parameters of the flammable gas spraying device 80 or replacing another flammable gas spraying device 8, repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion mixing dilution conditions of the same combustible gas spraying device 80 under different technical parameters or different combustible gas spraying devices 80.
According to the invention, by introducing a method of visualizing colored smoke, the gas uniformly mixing and diluting effect of the combustible gas spraying device 80 is more visual, so that the screening of the combustible gas spraying device 80 and the exploration of suitable technical parameters become simple, safe and quick.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention should be defined by the claims.
Claims (5)
1. The visualization method of the gas dilution effect is characterized by being implemented by adopting a visualization device of the gas dilution effect, wherein the visualization device comprises a compressed air source (10), a flow regulating device (20), a pressure detecting device (30), a flow detecting device (40), a buffer tank (50), a pipeline (60) and a color smoke group (70); the compressed air source (10), the flow regulating device (20), the flow detecting device (40) and the buffer tank (50) are sequentially connected through a pipeline (60); the pressure detection device (30) is connected with a pipeline (60) arranged between the flow regulating device (20) and the flow detection device (40) through the pipeline (60); the colored cigarette group (70) comprises a plurality of colored cigarettes (71), the plurality of colored cigarettes (71) are arranged in the buffer tank (50), and the visualization method comprises the following steps:
step 1, placing a plurality of connected colored cigarettes (71) in a tank body (52) of a buffer tank (50), and connecting the buffer tank (50) with a combustible gas spraying device (80) through a pipeline (60);
step 2, starting a combustible gas spraying device (80), and setting technical parameters of the combustible gas spraying device (80);
step 3, opening a compressed air source (10) so that compressed air can sequentially pass through a flow regulating device (20), a pressure detecting device (30), a flow detecting device (40), a buffer tank (50) and enter a combustible gas spraying device (80);
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device (20) to enable the indication value of the flow detecting device (40) to reach the target flow value;
step 5, igniting one colored smoke (71) in the colored smoke group (70), uniformly mixing the released colored smoke with compressed air after buffering by the tank body (52), then feeding the mixed material into a combustible gas spraying device (80), spraying the mixed material onto the upper part of the sinter bed, uniformly mixing the mixed material with air, and diluting the mixed material;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette (71) is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device (80) or replacing other types of flammable gas spraying devices (80), repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion mixing dilution conditions of different combustible gas spraying devices (80) and various technical parameters thereof.
2. The method for visualizing a gas dilution effect according to claim 1, wherein the buffer tank (50) comprises an air inlet pipe (51), a tank body (52) and an air outlet pipe (53) which are connected in sequence; a diversion diffusion plate (54) is arranged in the tank body (52) and divides the tank body (52) into an upper cavity and a lower cavity; the colored smoke (71) is arranged above the diversion diffusion plate (54); a plurality of round holes (58) are uniformly formed in the diversion diffusion plate (54); a side hole (55) is formed in the side wall of the upper cavity of the tank body (52), and the size of the side hole (55) is matched with the size of the color cigarette group (70); a sealing cover (56) is arranged at the outer side of the side hole (55), and a wire outlet hole (57) is arranged on the sealing cover (56); the visualization method comprises the following steps:
step 1, placing a plurality of connected colored cigarettes (71) on a diversion diffusion plate (54) in a tank body (52) of a buffer tank (50) through side holes (55), tightly covering a sealing cover (56) at the outer sides of the side holes (55), and then connecting an air outlet pipe (53) of the buffer tank (50) with a combustible gas spraying device (80) through a pipeline (60);
step 2, starting a combustible gas spraying device (80), and setting technical parameters of the combustible gas spraying device (80);
step 3, opening a compressed air source (10) so that compressed air can sequentially pass through a flow regulating device (20), a pressure detecting device (30), a flow detecting device (40), a buffer tank (50) and enter a combustible gas spraying device (80);
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device (20) to enable the indication value of the flow detecting device (40) to reach the target flow value;
step 5, igniting one colored smoke (71) in the colored smoke group (70), diffusing the released colored smoke along with compressed air through round holes (58) of a diversion diffusion plate (54), buffering the compressed air in a tank body (52), uniformly mixing the compressed air, then, entering a combustible gas spraying device (80) through an air outlet pipe (53), spraying the mixture to the upper part of a sinter bed, uniformly mixing the mixture with air, and diluting the mixture and then, entering a material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette (71) is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device (80) or replacing other types of flammable gas spraying devices (80), repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion mixing dilution conditions of different combustible gas spraying devices (80) and various technical parameters thereof.
3. A method of visualizing a gas dilution effect according to claim 2, characterized in that said color pack (70) further comprises a number of power lines (72), a number of switches (73) and a power supply (74); the switch (73) and the power supply (74) are arranged outside the tank body (52); one end of each colored cigarette (71) passes through the power transmission line (72) to pass through the wire outlet hole (57) and is connected with the negative electrode of the power supply (74), the other end of each colored cigarette (71) passes through one power transmission line (72) to pass through the wire outlet hole (57) and then is connected with one end of one switch (73), and the other end of each switch (73) is connected with the positive electrode of the power supply (74) through the power transmission line (72); the visualization method comprises the following steps:
step 1, placing a plurality of colored cigarettes (71) connected with a power transmission line (72) on a diversion diffusion plate (54) in a tank body (52) of a buffer tank (50) through side holes (55); the power transmission line (72) connected with each colored cigarette (71) extends out of the buffer tank (50) from the wire outlet hole (57) on the sealing cover (56) and is connected with the switch (73) and the power supply (74) to form a colored cigarette group (70), the sealing cover (56) is tightly covered and the wire outlet hole (57) are sealed, and then the gas outlet pipe (53) of the buffer tank (50) is connected with the combustible gas spraying device (80) through a pipeline;
step 2, starting a combustible gas spraying device (80), and setting technical parameters of the combustible gas spraying device (80);
step 3, opening a compressed air source (10) so that compressed air can sequentially pass through a flow regulating device (20), a pressure detecting device (30), a flow detecting device (40), a buffer tank (50) and enter a combustible gas spraying device (80);
step 4, according to the target concentration of the combustible gas to be sprayed, measuring and calculating the target flow of the combustible gas, and adjusting the flow regulating device (20) to enable the indication value of the flow detecting device (40) to reach the target flow value;
step 5, a group of switches (73) are closed, one colored smoke (71) in the colored smoke group (70) is ignited, the released colored smoke is diffused along with compressed air through round holes (58) of a flow guiding diffusion plate (54) and is uniformly mixed after being buffered in a tank body (52), and then the mixed gas enters a combustible gas spraying device (80) through an air outlet pipe (53) to be sprayed to the upper part of a sintering material layer, is uniformly mixed with air and is diluted, and enters a material surface;
step 6, shooting the color smoke diffusion mixing condition in real time by adopting a camera;
step 7, repeating the steps 5 to 6 for a plurality of times when one colored cigarette (71) is burnt out quickly;
step 8, after adjusting the technical parameters of the flammable gas spraying device (80) or replacing other types of flammable gas spraying devices (80), repeating the steps 2-7;
and 9, comparing and analyzing the color smoke diffusion mixing dilution conditions of different combustible gas spraying devices (80) and various technical parameters thereof.
4. A method for visualizing a gas dilution effect according to any one of claims 1-3, wherein the method for measuring and calculating the target flow rate of the combustible gas in step 4 is that the target concentration of the combustible gas to be sprayed is x the wind speed of the surface of the sintered material is x the sprayed area.
5. A method of visualizing a gas dilution effect according to any one of claims 1-3, characterized in that the colored smoke (71) is a 1min red stage colored smoke.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201514313U (en) * | 2009-10-15 | 2010-06-23 | 江苏万工科技集团有限公司 | Visualized airflow detector |
| CN204514763U (en) * | 2015-03-18 | 2015-07-29 | 深圳睿境环保科技有限公司 | Super low concentration particle on-line computing model |
| JP2015169618A (en) * | 2014-03-10 | 2015-09-28 | Ｊｆｅスチール株式会社 | visible smoke determination device and visible smoke determination method |
| CN103969285B (en) * | 2013-02-01 | 2016-08-03 | 中国航空工业集团公司西安飞机设计研究所 | The direct-vision method of the air distribution uniformity in checking cabin |
| CN106939785A (en) * | 2016-01-04 | 2017-07-11 | 中国石油大学(华东) | A kind of visualization of 3 d fireflood experimental system for simulating |
| CN107290128A (en) * | 2017-08-23 | 2017-10-24 | 公安部天津消防研究所 | Stream condition tracer and experimental method at a kind of compartment window |
| CN108195950A (en) * | 2017-12-04 | 2018-06-22 | 河南省计量科学研究院 | The dilution error detection device and its detection method of calibrating gas dilution device based on gas chromatograph |
| CN208382923U (en) * | 2018-06-26 | 2019-01-15 | 马鞍山钢铁股份有限公司 | A kind of device for observing gas dilution effect |
-
2018
- 2018-06-26 CN CN201810670413.9A patent/CN108955291B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201514313U (en) * | 2009-10-15 | 2010-06-23 | 江苏万工科技集团有限公司 | Visualized airflow detector |
| CN103969285B (en) * | 2013-02-01 | 2016-08-03 | 中国航空工业集团公司西安飞机设计研究所 | The direct-vision method of the air distribution uniformity in checking cabin |
| JP2015169618A (en) * | 2014-03-10 | 2015-09-28 | Ｊｆｅスチール株式会社 | visible smoke determination device and visible smoke determination method |
| CN204514763U (en) * | 2015-03-18 | 2015-07-29 | 深圳睿境环保科技有限公司 | Super low concentration particle on-line computing model |
| CN106939785A (en) * | 2016-01-04 | 2017-07-11 | 中国石油大学(华东) | A kind of visualization of 3 d fireflood experimental system for simulating |
| CN107290128A (en) * | 2017-08-23 | 2017-10-24 | 公安部天津消防研究所 | Stream condition tracer and experimental method at a kind of compartment window |
| CN108195950A (en) * | 2017-12-04 | 2018-06-22 | 河南省计量科学研究院 | The dilution error detection device and its detection method of calibrating gas dilution device based on gas chromatograph |
| CN208382923U (en) * | 2018-06-26 | 2019-01-15 | 马鞍山钢铁股份有限公司 | A kind of device for observing gas dilution effect |
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