CN114034403A - Flame temperature measuring device - Google Patents
Flame temperature measuring device Download PDFInfo
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- CN114034403A CN114034403A CN202111235943.9A CN202111235943A CN114034403A CN 114034403 A CN114034403 A CN 114034403A CN 202111235943 A CN202111235943 A CN 202111235943A CN 114034403 A CN114034403 A CN 114034403A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention provides a flame temperature measuring device, comprising: the device comprises a bracket, a filament thermocouple, an elastic piece, a signal sampler, a first connecting seat, a second connecting seat, a first compensation wire, a second compensation wire, a first ceramic tube and a second ceramic tube; first connecting seat and second connecting seat all rotate and locate the support, first connecting seat is worn to locate by first ceramic pipe, the second connecting seat is worn to locate by the second ceramic pipe, first ceramic pipe is worn to locate by first compensation line, second ceramic pipe is worn to locate by the second compensation line, the one end of first compensation line is connected in the one end of fine wire thermocouple, the one end of second compensation line is connected in the other end of fine wire thermocouple, the other end of first compensation line and the other end of second compensation line are connected in the signal sample thief, the one end of elastic component is connected in first ceramic pipe, the other end of elastic component is connected in the second ceramic pipe. The thin-wire thermocouple can remarkably reduce the influence of contact temperature measurement on the flow field of small flame, and the thin-wire thermocouple is in a tightened state by using the pulling force provided by the elastic piece.
Description
Technical Field
The invention relates to the technical field of temperature measurement, in particular to a flame temperature measuring device.
Background
Temperature is an important parameter in combustion research, characterizes the severity of combustion chemical reactions, and can help scientific analysis of basic flames such as correlation studies of opposed flames and coaxial jet flames.
The temperature measurement can be classified into a contact type and a non-contact type according to whether the object to be measured is contacted or not. Although the contact temperature measurement method can damage the flow field environment in the combustion research, the temperature information of the position of the measurement point can be directly obtained, the measurement result is very close to the real result, and the reliability is high. On the contrary, although the non-contact temperature measurement method (such as laser diagnosis) can avoid damaging the experimental flow field during temperature measurement, the result still needs to be correspondingly checked and calibrated through contact temperature measurement, otherwise, larger deviation is easy to occur. Therefore, it is still necessary to develop a method of contact temperature measurement.
Disclosure of Invention
The invention provides a flame temperature measuring device, which is used for solving the problem that the accuracy of contact temperature measurement in the prior art cannot meet the test requirement easily.
The invention provides a flame temperature measuring device, comprising: the device comprises a bracket, a filament thermocouple, an elastic piece, a signal sampler, a first connecting seat, a second connecting seat, a first compensation wire, a second compensation wire, a first ceramic tube and a second ceramic tube;
the first connecting seat and the second connecting seat are rotatably arranged on the support, the first ceramic tube is arranged in the first connecting seat in a penetrating mode, the second ceramic tube is arranged in the second connecting seat in a penetrating mode, the first compensation wire is arranged in the first ceramic tube in a penetrating mode, the second compensation wire is arranged in the second ceramic tube in a penetrating mode, one end of the first compensation wire is connected to one end of the filament thermocouple, one end of the second compensation wire is connected to the other end of the filament thermocouple, the other end of the first compensation wire and the other end of the second compensation wire are connected to the signal sampler, one end of the elastic piece is connected to the first ceramic tube, and the other end of the elastic piece is connected to the second ceramic tube.
According to the flame temperature measuring device provided by the invention, the flame temperature measuring device further comprises a driving component, the driving component is connected with the bracket, and the filament thermocouple is relatively close to or relatively far away from the flame under the driving of the driving component.
According to the flame temperature measuring device provided by the invention, the driving assembly comprises an air source, an air cylinder, an electromagnetic valve and a controller;
the electromagnetic valve is arranged between the air source and the air cylinder, the electromagnetic valve comprises an air inlet, a first air outlet and a second air outlet, the air inlet is connected with the air source, the first air outlet and the second air outlet are respectively connected with two air valves of the air cylinder, a piston rod of the air cylinder is connected with the support, and the controller is used for controlling the electromagnetic valve to act.
According to the flame temperature measuring device provided by the invention, the flame temperature measuring device further comprises a machine body, a horizontal moving structure and a vertical moving structure;
the horizontal movement structure is arranged on the machine body and can move along the horizontal direction, the vertical movement structure is arranged on the horizontal movement structure and can move along the vertical direction, and the driving assembly is arranged on the vertical movement structure.
According to the flame temperature measuring device provided by the invention, the flame temperature measuring device further comprises a first driving piece and a second driving piece;
the first driving piece is arranged on the machine body and connected with the horizontal moving structure to drive the horizontal moving structure to move along the horizontal direction;
the second driving piece is arranged on the horizontal moving structure and connected with the vertical moving structure to drive the vertical moving structure to move along the vertical direction.
According to the flame temperature measuring device provided by the invention, the first connecting seat and the second connecting seat have the same structure, the first connecting seat comprises a threaded rod, the bracket is provided with a threaded hole, and the first connecting seat is in threaded connection with the threaded hole through the threaded rod.
According to the flame temperature measuring device provided by the invention, the first connecting seat further comprises a mounting seat, the mounting seat is connected with the threaded rod, a first mounting hole is formed in the mounting seat along the radial direction, and the first ceramic tube penetrates through the first mounting hole.
According to the flame temperature measuring device provided by the invention, the mounting seat is provided with a second mounting hole along the axial direction, and the second mounting hole is communicated with the first mounting hole; the first connecting seat further comprises a fastener, the fastener is arranged in the second mounting hole, and the fastener is abutted to the surface of the first ceramic tube.
According to the flame temperature measuring device provided by the invention, the first ceramic tube and the second ceramic tube have the same structure, the outer diameter of the first ceramic tube is 2.5-3.5 mm, the inner diameter of the first ceramic tube is 1.5-2.5 mm, and the length of the first ceramic tube is 250-350 mm.
According to the flame temperature measuring device provided by the invention, the diameter of the filament thermocouple is 0.07-0.08 mm, the diameter of the temperature measuring node is 0.08-0.09 mm, and the temperature measuring limit reaches 1750-1850 ℃.
According to the flame temperature measuring device provided by the invention, the diameter of the filament thermocouple reaches the micron order, the size of the flame is very small compared with that of the flame in a basic combustion experiment, and the influence of contact temperature measurement on the flow field of small flame can be obviously reduced; in order to solve the problems that the filament thermocouple is easy to deviate from a measuring position and break under the impact of a flow field at high temperature, an elastic piece is arranged between the first ceramic tube and the second ceramic tube, and the filament thermocouple is in a tightened state by utilizing the tensile force provided by the elastic piece.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a partial schematic view of a flame temperature measuring device provided by the present invention;
FIG. 2 is a schematic structural diagram of a first connecting seat provided in the present invention;
FIG. 3 is a schematic structural diagram of a flame temperature measuring device provided by the present invention;
reference numerals:
1: a filament thermocouple; 2: a second ceramic tube; 3: a first ceramic tube;
4: a first connecting seat; 41: a mounting seat; 42: a threaded rod;
5: a second connecting seat; 6: a support; 7: a first compensation line;
8: a second compensation line; 9: an elastic member; 10: a gas source;
11: a signal sampler; 12: a controller; 13: a valve;
14: an electromagnetic valve; 15: an adjustment device; 16: and a cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The influence on the flow field in a common thermocouple temperature measurement application scene can be ignored, but in basic combustion research, because small flames such as a commonly-used impinging flame and a coaxial jet flame are sensitive to the change of the flow field, and even a slight disturbance can easily cause a corresponding large change of a combustion chemical reaction, the influence on the flow field of the small flames needs to be considered when a contact type thermocouple temperature measurement method is applied to the small flames. For the flame rich in soot, soot particles are deposited and attached to the thermocouple when a contact type temperature measurement method is applied, the reading of the thermocouple is influenced, the deviation of the temperature measurement result of the thermocouple is large, and therefore the influence of the soot particles on the temperature measurement result during temperature measurement needs to be considered. In addition, the high temperature of the flame causes the temperature measuring thermocouple wire to thermally expand, become soft and stretch, and easily break under the impact of airflow in a flow field, so that the temperature measuring thermocouple wire needs to be limited.
From the above, the measurement of the temperature of the small flame needs to solve the problems of reducing the influence on the flow field, the adhesion of soot particles in the flame, and the easy breakage of the thermocouple wire under high temperature.
In order to solve the above problems, the flame temperature measuring device of the present invention will be described below with reference to fig. 1 to 3.
As shown in fig. 1 and 3, a flame temperature measuring apparatus according to an embodiment of the present application includes: the device comprises a support 6, a filament thermocouple 1, an elastic piece 9, a signal sampler 11, a first connecting seat 4, a second connecting seat 5, a first compensation wire 7, a second compensation wire 8, a first ceramic tube 3 and a second ceramic tube 2.
First connecting seat 4 and second connecting seat 5 all rotate and locate same one side of support 6, and first connecting seat 4 and second connecting seat 5 locate the both ends of support 6, that is to say, first connecting seat 4 and second connecting seat 5 all can rotate for support 6.
First ceramic pipe 3 wears to locate first connecting seat 4, and second ceramic pipe 2 wears to locate second connecting seat 5, that is to say, first ceramic pipe 3 can rotate for support 6 along with first connecting seat 4, and second ceramic pipe 2 can rotate for support 6 along with second connecting seat 5. For example, the first ceramic tube 3 and the second ceramic tube 2 may be arranged in parallel, or there may be an angle between the first ceramic tube 3 and the second ceramic tube 2. A first distance between the first ceramic tube 3 and the holder 6 is equal to a second distance between the second ceramic tube 2 and the holder 6.
The first compensation wire 7 penetrates through the first ceramic tube 3, the second compensation wire 8 penetrates through the second ceramic tube 2, the length of the first compensation wire 7 is larger than that of the first ceramic tube 3, and the length of the second compensation wire 8 is larger than that of the second ceramic tube 2.
One end of the first compensation wire 7 is welded at one end of the filament thermocouple 1, one end of the second compensation wire 8 is welded at the other end of the filament thermocouple 1, and under the action of tensile force provided by the first compensation wire 7 and the second compensation wire 8, two ends of the filament thermocouple 1 are respectively abutted against one end of the first ceramic tube 3 and one end of the second ceramic tube 2.
The other end of the first compensation wire 7 and the other end of the second compensation wire 8 are connected to the signal sampler 11, one end of the elastic member 9 is connected to the first ceramic tube 3, and the other end of the elastic member 9 is connected to the second ceramic tube 2.
For example, one end of the elastic member 9 is fixedly connected to the other end of the first ceramic tube 3, and the other end of the elastic member 9 is fixedly connected to the other end of the second ceramic tube 2.
The elastic member 9 may be a spring or other members with telescopic capability, and the specific type thereof is not limited in detail herein.
It should be noted that, when measuring temperature in high-temperature flame, after the filament thermocouple 1 expands and softens when heated, the force applied by the elastic element 9 is converted into the tightening force of the filament thermocouple 1 through the ceramic tube and the connecting seat, so that the temperature measuring point of the filament thermocouple 1 is not impacted by air flow and does not shake to cause fatigue fracture.
In the embodiment of the application, the diameter of the filament thermocouple 1 reaches the micron order, and the filament thermocouple is very small compared with the flame size of a basic combustion experiment, so that the influence of contact temperature measurement on the flow field of small flame can be obviously reduced; in order to solve the problems that the filament thermocouple 1 is easy to deviate from a measuring position and break due to flow field impact at high temperature, an elastic part 9 is arranged between the first ceramic tube 3 and the second ceramic tube 2, and the filament thermocouple 1 is in a tightened state by using the tensile force provided by the elastic part 9.
In an alternative embodiment, the flame temperature measuring device further comprises a driving assembly, the driving assembly is connected with the bracket 6, and the filament thermocouple 1 is relatively close to or relatively far away from the flame under the driving of the driving assembly.
Wherein, support 6 can be "T" shape support, and support 6 includes horizontal pole and vertical pole, and first connecting seat 4 and second connecting seat 5 all rotate and locate the horizontal pole, and drive assembly is connected with the vertical pole.
It will be appreciated that by the rapid penetration or penetration of the filament thermocouple 1 into or out of the flame, the time for soot particles on the way to deposit on the filament thermocouple 1 is reduced, allowing quantitative description of the effect of soot particle deposition, while also reducing the risk of breakage of the filament thermocouple 1 due to too long a residence time.
It should be noted that residual soot particles attached to the surface of the filament thermocouple 1 can be burned off by using a butane torch after the measurement is finished, so that the filament thermocouple 1 can be repeatedly used, thereby saving the cost.
In an alternative embodiment, the drive assembly includes an air supply 10, an air cylinder 16, a solenoid valve 14, and a controller 12.
Wherein the gas source 10 comprises a gas cylinder and nitrogen stored in the gas cylinder. The solenoid valve 14 may be a two-position three-way solenoid valve.
The electromagnetic valve 14 is arranged between the air source 10 and the air cylinder 16, the electromagnetic valve 14 comprises an air inlet, a first air outlet and a second air outlet, the air inlet is connected with the air source 10 through a first pipeline, and the first pipeline is provided with a valve 13. The first outlet is connected to one valve of the cylinder 16 via a second line, and the second outlet is connected to another valve of the cylinder 16 via a third line. The piston rod of the air cylinder 16 is connected to the vertical rod, and the controller 12 is used to control the operation of the electromagnetic valve 14.
Specifically, the controller 12 sends a first control signal to the solenoid valve 14 to control the opening of the air inlet of the solenoid valve and to control the alternate opening of the first air outlet and the second air outlet, when the air inlet and the first air outlet are opened, the piston rod of the air cylinder 16 moves to a first direction, when the air inlet and the second air outlet are opened, the piston rod of the air cylinder 16 moves to a second direction, and the first direction movement and the second direction movement are opposite.
Wherein the stroke of the air cylinder 16 is 20mm, and the working pressure is 0.8-1.5 MPa.
In an alternative embodiment, the flame temperature measuring device further comprises an adjusting device 15, in particular, the adjusting device 15 comprises a machine body, a horizontal moving structure and a vertical moving structure.
The horizontal movement structure is arranged on the machine body and can move along the horizontal direction, the vertical movement structure is arranged on the horizontal movement structure and can move along the vertical direction, and the driving assembly is arranged on the vertical movement structure.
Wherein the air cylinder 16 is provided on a vertically moving structure, that is, the air cylinder 16 can perform two-dimensional movement in the X-axis and Y-axis directions.
In particular, the controller 12 sends a second control signal to the adjustment device 15, the horizontally moving structure being movable in a horizontal direction and/or the vertically moving structure being movable in a vertical direction.
In an alternative embodiment, the flame temperature measuring device further comprises a first drive member and a second drive member.
The first driving part is arranged on the machine body and connected with the horizontal moving structure so as to drive the horizontal moving structure to move along the horizontal direction; the second driving piece is arranged on the horizontal moving structure and connected with the vertical moving structure to drive the vertical moving structure to move along the vertical direction.
Wherein the first driving member and the second driving member may be stepping motors.
In an alternative embodiment, as shown in fig. 2, the first and second connector holders 4 and 5 are identical in structure.
The first connector 4 will be described below as an example. The first connecting seat 4 comprises a threaded rod 42, the bracket 6 is provided with a threaded hole, and the first connecting seat 4 is in threaded connection with the threaded hole through the threaded rod 42.
Specifically, an M4 threaded hole is respectively processed at two ends of the cross rod, a circular hole is processed at one end of the longitudinal rod, the longitudinal rod is connected with the piston rod of the air cylinder 16 after the connecting piece penetrates through the circular hole, and the threaded rod 42 is processed into an M4 external threaded rod.
It should be noted that the first connection seat 4 is in threaded connection with the cross rod through a threaded rod, so that the ceramic tube can rotate when the elastic element applies force, and the force is transmitted to the filament thermocouple 1.
In an alternative embodiment, the first connecting seat 4 further includes a mounting seat 41, the mounting seat 41 is connected to a top end of the threaded rod 42, the mounting seat 41 is provided with a first mounting hole along the radial direction, and the first ceramic tube 3 is inserted through the first mounting hole.
Wherein, the first ceramic tube 3 and the first mounting hole may be in interference fit.
In an alternative embodiment, the mounting seat 41 is provided with a second mounting hole along the axial direction, and the second mounting hole is communicated with the first mounting hole; the first connecting seat 4 further comprises a fastening piece, the fastening piece is arranged in the second mounting hole, and the fastening piece is abutted to the surface of the first ceramic tube 3.
It should be noted that the fastening member may be a screw, the second mounting hole may be a threaded hole, and the fastening member is rotated relative to the second mounting hole, so that the first ceramic tube 3 is fixed in the first mounting hole, and the first ceramic tube 3 is prevented from shaking.
In an alternative embodiment, the first ceramic tube 3 and the second ceramic tube 2 have the same structure, and the first ceramic tube 3 is taken as an example to be described below, wherein the outer diameter of the first ceramic tube 3 is 2.5 to 3.5mm, the inner diameter is 1.5 to 2.5mm, and the length is 250 to 350 mm.
For example, the first ceramic tube 3 has an outer diameter of 3mm, an inner diameter of 2mm, and a length of 300 mm.
The first ceramic tube 3 may be a corundum tube, which is suitable for analyzing various laboratory metal and nonmetal samples and melting materials. The usage temperature of the corundum tube is 1200-1800 ℃, and the corundum tube has the characteristics of high density, good thermal shock resistance, acid and alkali resistance, scouring resistance, long service life and the like.
In an optional embodiment, the diameter of the filament thermocouple 1 is 0.07-0.08 mm, the diameter of a temperature measuring node is 0.08-0.09 mm, and the temperature measuring limit reaches 1750-1850 ℃.
Wherein the type of the filament thermocouple 1 is B type (platinum rhodium 30-platinum rhodium 6), the diameter of the filament thermocouple is 0.075mm, the diameter of a temperature measurement node is 0.085mm, and the temperature measurement limit reaches 1800 ℃.
Before the experiment, the high-pressure gas cylinder and the controller 12 are firstly opened, the parameters such as preheating time, residence time and the like are set through the controller 12, and communication among all devices is debugged.
Before the actual measurement, the adjusting device 15 is first controlled to move the filament thermocouple 1 to a specified height of the flame and a measurement position, and the point is marked as 0 point in the program for subsequent control.
After the test is started, the temperature measuring point of the filament thermocouple 1 is conveyed to a position 5mm away from the flame by the adjusting device 15, the filament thermocouple 1 is controlled to stay at the position for about 10-15 seconds, so that the preheating of the filament thermocouple 1 is completed, and the phenomenon that the filament thermocouple 1 is broken due to overlarge stress caused by directly feeding the filament thermocouple into the flame is avoided.
The signal sampler 11 is controlled by the controller to start up to collect the signal of the filament thermocouple 1 when the preheating position is reached, and the controller 12 sends out a starting signal and records the signal sending time. After the starting signal is sent out, the electromagnetic valve 14 is controlled to be opened, so that the air pressure on the left side of the piston rod of the air cylinder 16 is increased, the piston rod of the air cylinder 16 is rapidly extended out, and the temperature measuring point of the filament thermocouple 1 is driven to enter the flame center. And after the preset retention time is reached, a signal is sent again to control the electromagnetic valve 14, so that the air pressure on the right side of the piston rod of the air cylinder 16 is increased, the piston rod of the air cylinder 16 is retracted quickly, and the temperature measuring point of the filament thermocouple 1 is driven to leave the flame.
The signal sampler 11 stops the signal collection of the filament thermocouple 1 and saves the collected data. This completes a complete sampling process. Before the next sampling, the adjusting device 15 is controlled to move the filament thermocouple 1 out of the flame, a small amount of soot particles attached to the surface of the filament thermocouple 1 is burned off by using a butane spray gun, and the condition of the filament thermocouple 1 is checked. If the temperature of other positions needs to be collected, the adjusting device 15 is controlled to change the position of the sampling point. Temperature acquisition for multiple conditions or locations can be accomplished by cycling through the above process. After the experiment is finished, the high-pressure gas cylinder and the controller 12 are closed, and the measured temperature data are processed to obtain the real temperature. In the subsequent data processing process, the influence of soot particle deposition can be eliminated through an algorithm, so that a more accurate measured value is obtained.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A flame temperature measuring device, comprising: the device comprises a bracket, a filament thermocouple, an elastic piece, a signal sampler, a first connecting seat, a second connecting seat, a first compensation wire, a second compensation wire, a first ceramic tube and a second ceramic tube;
the first connecting seat and the second connecting seat are rotatably arranged on the support, the first ceramic tube is arranged in the first connecting seat in a penetrating mode, the second ceramic tube is arranged in the second connecting seat in a penetrating mode, the first compensation wire is arranged in the first ceramic tube in a penetrating mode, the second compensation wire is arranged in the second ceramic tube in a penetrating mode, one end of the first compensation wire is connected to one end of the filament thermocouple, one end of the second compensation wire is connected to the other end of the filament thermocouple, the other end of the first compensation wire and the other end of the second compensation wire are connected to the signal sampler, one end of the elastic piece is connected to the first ceramic tube, and the other end of the elastic piece is connected to the second ceramic tube.
2. The flame temperature measurement device of claim 1, further comprising a drive assembly coupled to the support, wherein the filament thermocouple is relatively close to or relatively far from the flame upon actuation of the drive assembly.
3. The flame temperature measurement apparatus of claim 2, wherein the drive assembly comprises a gas source, a gas cylinder, a solenoid valve, and a controller;
the electromagnetic valve is arranged between the air source and the air cylinder, the electromagnetic valve comprises an air inlet, a first air outlet and a second air outlet, the air inlet is connected with the air source, the first air outlet and the second air outlet are respectively connected with two air valves of the air cylinder, a piston rod of the air cylinder is connected with the support, and the controller is used for controlling the electromagnetic valve to act.
4. The flame temperature measurement device of claim 2, further comprising a body, a horizontally moving structure, and a vertically moving structure;
the horizontal movement structure is arranged on the machine body and can move along the horizontal direction, the vertical movement structure is arranged on the horizontal movement structure and can move along the vertical direction, and the driving assembly is arranged on the vertical movement structure.
5. The flame temperature measurement device of claim 4, further comprising a first drive member and a second drive member;
the first driving piece is arranged on the machine body and connected with the horizontal moving structure to drive the horizontal moving structure to move along the horizontal direction;
the second driving piece is arranged on the horizontal moving structure and connected with the vertical moving structure to drive the vertical moving structure to move along the vertical direction.
6. The flame temperature measuring device of claim 1, wherein the first connecting seat and the second connecting seat are identical in structure, the first connecting seat includes a threaded rod, the bracket is provided with a threaded hole, and the first connecting seat is in threaded connection with the threaded hole through the threaded rod.
7. The flame temperature measuring device of claim 6, wherein the first connecting base further comprises a mounting base, the mounting base is connected with the threaded rod, the mounting base is provided with a first mounting hole along a radial direction, and the first ceramic tube is arranged through the first mounting hole.
8. The flame temperature measuring device of claim 7, wherein the mounting base is provided with a second mounting hole in an axial direction, the second mounting hole communicating with the first mounting hole; the first connecting seat further comprises a fastener, the fastener is arranged in the second mounting hole, and the fastener is abutted to the surface of the first ceramic tube.
9. The flame temperature measuring device according to claim 1, wherein the first ceramic tube and the second ceramic tube have the same structure, and the first ceramic tube has an outer diameter of 2.5 to 3.5mm, an inner diameter of 1.5 to 2.5mm, and a length of 250 to 350 mm.
10. The flame temperature measuring device according to claim 1, wherein the filament thermocouple has a diameter of 0.07-0.08 mm, a temperature measuring junction diameter of 0.08-0.09 mm, and a temperature measuring limit of 1750-1850 ℃.
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| CN202111235943.9A CN114034403B (en) | 2021-10-22 | 2021-10-22 | Flame temperature measuring device |
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| CN202111235943.9A CN114034403B (en) | 2021-10-22 | 2021-10-22 | Flame temperature measuring device |
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| CN114034403A true CN114034403A (en) | 2022-02-11 |
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| CN107806937A (en) * | 2017-10-16 | 2018-03-16 | 首钢集团有限公司 | A kind of device for detecting rotary kiln temperature |
| CN108980909A (en) * | 2018-06-15 | 2018-12-11 | 杭州仙珑宇盈科技有限公司 | It can prevent the gas stove system and method for dry combustion method |
| CN109341883A (en) * | 2018-10-25 | 2019-02-15 | 浙江大学 | A kind of total temperature measurement device in aeroengine combustor buring room |
| CN111189552A (en) * | 2020-01-09 | 2020-05-22 | 中国石油大学(华东) | Methane hydrate flame temperature testing device and temperature measurement correction method |
| CN213901968U (en) * | 2020-11-18 | 2021-08-06 | 北京石墨烯研究院 | Temperature measuring device for tube furnace |
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