Radiation heat flux density monitoring equipment and method

Abstract

The invention provides radiation heat flux density monitoring equipment and method, and belongs to the technical field of porous medium combustion, the equipment comprises a heat flux density monitoring assembly and a multi-axis movement assembly, the heat flux density monitoring assembly can be located at an outlet of a combustor and is used for measuring the radiation heat flux density of the environment at the outlet; the multi-axis movement assembly is connected with the heat flux density monitoring assembly, and the heat flux density monitoring assembly can linearly move in the x direction, the y direction and the z direction and rotate around the y axis. According to the invention, the whole field data is obtained in one continuous measurement, all data points are ensured to be under the completely same working conditions, and the reliability and comparability of the radiation field distribution diagram are greatly improved; the device can achieve the collection of tens of thousands of data points, improves the spatial resolution by two orders of magnitude, can accurately capture local hot spots and violent radiation gradient changes, and meets the urgent demands of modern combustion study on the accurate and rapid measurement of a radiation heat flux density field through the characteristics of high precision, high flexibility and high reliability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of porous media combustion, and particularly relates to a radiation heat flux density monitoring device and method. BACKGROUND

[0002] Porous media combustion, as an advanced combustion technology with high efficiency and low pollution, has shown broad application prospects in industrial heating, gas turbines, and pollution control. Its core principle is to make the premixed combustible gas flow and burn in a porous solid material with a continuous three-dimensional network structure (such as foam ceramic, metal felt, or honeycomb ceramic). In this process, the high-temperature porous solid matrix acts as both a "heat accumulator" and a "radiation source", greatly enhancing the heat transfer between the inside and outside of the combustion chamber through strong convective and radiative heat transfer. This not only achieves stable and intensified combustion, but also significantly widens the lean-burn stability limit and effectively suppresses the generation of thermal NOx, thereby achieving the dual goals of high efficiency and low pollution.

[0003] In the combustion basic research and industrial application optimization, the radiation heat flux density is a key indicator for evaluating the performance of porous media combustion. The core advantage of porous media combustion technology lies in its ability to efficiently transfer the energy generated by combustion to the heated surface in the form of thermal radiation through the high-temperature porous solid matrix. By accurately measuring and spatially analyzing the output radiation heat flux density, the radiation output intensity and uniformity of the burner surface can be quantified, and the effective utilization efficiency of the combustion heat can be accurately calculated. Therefore, the precise and rapid measurement of radiation heat flux density is of great significance for promoting the transition of porous media combustion technology from laboratory research to industrial application. However, the current measurement technology for the radiation field of porous media combustion is still limited to discrete measurement of single points or local areas. The common method is to use water-cooled or air-cooled radiation heat flux meters to place a single sensor at a specific location in front of the burner outlet for point-by-point measurement, or to obtain data at limited spatial points through multiple independent experiments.

[0004] This traditional method has three significant defects: first, it can only capture scattered local information in a two-dimensional plane, and cannot fully reflect the continuous spatial distribution and gradient changes of the radiation field, resulting in a large error between the measured data and the real physical field; second, the point-by-point measurement method is inefficient, and requires dozens of repeated experiments to obtain a complete heat flux distribution map, resulting in a large consumption of time and resources; finally, this method is completely unsuitable for studying non-steady-state combustion processes or transient operating conditions, limiting the understanding of its dynamic characteristics. SUMMARY

[0005] The present application aims to provide a radiant heat flux density monitoring scheme, which can realize global, synchronous and continuous monitoring of radiant heat flux density distribution of the entire two-dimensional plane at the burner outlet, thereby improving the measurement accuracy and efficiency.

[0006] To achieve the above-mentioned purpose, in the first aspect of the present application, a radiant heat flux density monitoring device is provided, comprising a heat flux density monitoring assembly and a multi-axis motion assembly, the heat flux density monitoring assembly can be located at the burner outlet for measuring the radiant heat flux density of the environment thereat. The multi-axis motion assembly is connected with the heat flux density monitoring assembly, which can make the heat flux density monitoring assembly move linearly along the x, y and z directions and rotate around the y axis. The heat flux density monitoring assembly comprises heat flow meters, and the heat flow meters are arranged at equal intervals.

[0007] Further, an integrated control box is further provided, and the control box is provided with control elements.

[0008] Further, the multi-axis motion assembly comprises a y-axis sliding block module, an x-axis sliding block module, a z-axis sliding block module and a rotating sliding table, the x-axis sliding block module is connected with the y-axis sliding block module and can move along the y-axis direction; the z-axis sliding block module is connected with the x-axis sliding block module and extends vertically; the rotating sliding table is connected with the z-axis sliding block module and the heat flux density monitoring assembly, and can drive the heat flux density monitoring assembly to move along the z-axis direction.

[0009] Further, the rotating sliding table comprises a base, a rotating sliding sheet and a bearing transmission device, the base is connected with the z-axis sliding block module; the rotating sliding sheet is connected with the base and can rotate; and the bearing transmission device is located between the base and the rotating sliding sheet.

[0010] Further, the rotating sliding sheet is provided with a positioning seat, the positioning seat is hingedly connected with a moving seat, the moving seat can be connected with the heat flux density monitoring assembly, the moving seat can be flipped around the hinge shaft to drive the heat flux density monitoring assembly to move.

[0011] Further, a locking assembly is arranged between the moving seat and the heat flux density monitoring assembly, and the locking assembly can realize detachable connection between the moving seat and the heat flux density monitoring assembly.

[0012] Further, the locking assembly comprises a tray, a locking base and a lock head, the tray is connected with a supporting arm, and the supporting arm is connected with the heat flux density monitoring assembly; the locking base is installed on the tray; and the lock head is installed on the moving seat and can be inserted into the locking base.

[0013] Further, the heat flux monitoring assembly further comprises a carrier body, and a plurality of holes are arranged on the carrier body, so that the main body of the heat flow meter can pass through the holes.

[0014] In the second aspect of the present application, a radiation heat flux monitoring method is provided, which needs to use the radiation heat flux monitoring device as described in the first aspect, and the method comprises the following steps: Setting path planning and measurement parameters of the scanning area; The multi-axis motion assembly moves the heat flux monitoring assembly to the preset measurement points in sequence; Data acquisition is performed at each measurement point, and the readings of the heat flow meter are recorded.

[0015] Further, the path planning is a variable step path planning, a first moving step is used in the preset central area or high gradient area, and a second moving step larger than the first moving step is used in other areas.

[0016] Compared with the prior art, the present application has the beneficial effects that full-field data is obtained in one continuous measurement, all data points are ensured to be in the same working condition, the reliability and comparability of the radiation field distribution map are greatly improved, more than ten thousand data points can be collected, the spatial resolution is improved by two orders of magnitude, local hot spots and severe radiation gradient changes can be accurately captured, and the characteristics of high precision, high flexibility and high reliability perfectly meet the urgent needs of modern combustion research for accurate and rapid measurement of radiation heat flux density field. The present application can be applied to burners of various structures, can quickly and accurately obtain two-dimensional plane radiation heat flux density distribution map, and provides key data support for combustion efficiency evaluation, furnace design optimization and pollution control. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the integrated operating box structure of the present application; Figure 3 It is a schematic diagram of the multi-axis motion assembly structure of the present application; Figure 4 It is a schematic diagram of the rotating slide structure of the present application; Figure 5 It is a schematic diagram of the heat flux density measurement assembly structure of the present application; Figure 6 It is a schematic diagram of the locking assembly structure of the present application; Figure 7 It is a schematic diagram of the placement table structure of the present application; Figure 8 It is a schematic diagram of the cleaning assembly structure of the present application; Figure 9The schematic view of the locking assembly of the present application connecting with the carrier body; Figure 10 The schematic view of the supporting arm structure of the present application; Figure 11 The schematic view of the adjusting drive shaft structure of the present application; Figure 12 The radiant heat flux density distribution diagram of one embodiment of the present application; Figure 13 The radiant heat flux density distribution diagram of another embodiment of the present application; Figure 14 The flow chart of the radiant heat flux density monitoring method of the embodiment of the present application; Wherein, 1-x axial slider module, 2-y axial slider module, 3-z axial slider module, 4-rotary sliding table, 5-carrier body, 6-heat flow meter, 7-gantry, 8-metal plate, 9-universal wheel, 10-smart touch screen, 11-base, 12-rotary sliding sheet, 13-bearing transmission device, 14-positioning seat, 15-locking shaft, 16-moving seat, 17-tray, 18-supporting arm, 19-locking base, 20-bottom pad, 21-locking shell, 22-top rod, 23-electric push rod, 24-extrusion head, 25-slot, 26-extension slot, 27-locking arm, 28-return spring, 29-locking slot, 30-placing table, 31-storage space, 32-center drive shaft, 33-flat extension arm, 34-branch arm, 35-cleaning head, 36-opening, 37-bottom supporting plate, 38-assistant push rod, 39-moving supporting plate, 40-assistant drive motor, 41-square plate, 42-worm wheel, 43-center port, 44-end port, 45-adjusting drive shaft, 46-worm, 47-first matching bevel gear, 48-second matching bevel gear, 49-first adjusting drive motor set, 50-second adjusting drive motor set. DETAILED DESCRIPTION

[0018] The following will make the purpose, technical scheme and advantages of the embodiments of the present application clearer. The technical scheme of the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] Referring to Figures 1 to 3 As shown in the figure, a radiant heat flux density monitoring device, comprising an integrated operating box, a multi-axis motion assembly and a heat flux density measurement assembly, the multi-axis motion assembly is arranged on the integrated operating box, and the heat flux density measurement assembly is installed on the multi-axis motion assembly. The multi-axis motion assembly is constructed based on the Cartesian coordinate system, and through the operation of the multi-axis motion assembly, the heat flux density measurement assembly can realize linear motion in x, y and z directions respectively, and then move to the working area.

[0021] The multi-axis motion assembly comprises an x-axis sliding block module 1, a y-axis sliding block module 2 and a z-axis sliding block module 3. The y-axis sliding block module 2 is two and parallel. Both of the y-axis sliding block modules 2 are installed on the integrated operating box and above the integrated operating box. The two ends of the x-axis sliding block module 1 are connected with the corresponding y-axis sliding block module 2 on the side, so that the x-axis sliding block module 1 can move along the y-axis. At this time, the heat flux density measurement assembly moves forward and backward. The z-axis sliding block module 3 is connected with the x-axis sliding block module 1 and moves along the x-axis to realize the left and right movement of the heat flux density measurement assembly. The heat flux density measurement assembly is connected with the z-axis sliding block module 3 through a rotating sliding table 4, so that the heat flux density measurement assembly can move up and down along the z-axis. Through the cooperation of the x-axis sliding block module 1, the y-axis sliding block module 2 and the z-axis sliding block module 3, the heat flux density measurement assembly realizes multi-directional motion, increases the application range and the measurement range.

[0022] It should be noted that the end of the x-axis sliding block module 1, the y-axis sliding block module 2 and the z-axis sliding block module 3 is provided with a servo motor, which ensures the accuracy and controllability of the axial motion. At the same time, each sliding block module is made of aluminum alloy, the surface is provided with a smooth track, and the moving speed and frequency can be controlled. The precision is 0.01 mm. The moving range of x-axis is-1000 mm~1000 mm, the moving range of y-axis is-1000 mm~1000 mm, and the moving range of z-axis is-1000 mm~1000 mm. The positive and negative directions of both sides are provided with impact protection.

[0023] Referring to Figure 5As shown, in the embodiment, the heat flux density measurement assembly comprises a carrier 5 connected with the rotating slide 4, and 1-8 heat flux meters 6 are flexibly arranged on the carrier 5. The heat flux meters 6 are arranged at equal intervals along the length direction of the carrier 5 to meet different measurement density requirements. The heat flux meters 6 are made of stainless steel, each heat flux meter 6 extends for 100 mm-300 mm, and the end of each heat flux meter 6 is connected with a closed-loop cooling water system to effectively avoid damage of the device due to overheating. The measurement accuracy of the heat flux meter 6 is ±1% of the full scale.

[0024] All the required electrical control elements are integrated in the integrated control box to realize centralized and intelligent control of multi-axis motion assembly operation, data acquisition and system cooling.

[0025] The integrated control box is specifically supported by a gantry 7, and the periphery is a sheet metal sealing plate 8. The lower part of the gantry 7 is connected with universal wheels 9, and the universal wheels 9 are provided with four loose and tight tabs to facilitate overall movement.

[0026] The integrated control box is provided with control required electrical elements, extension wires, a cooling water tank, a circulating water pump, an intelligent control panel, a heat flux meter 6 multi-channel analyzer and a smart touch screen 10. The intelligent control panel has an automatic control unit, and the user can easily set a complex measurement program on the smart touch screen 10: define the movement path of the heat flux density measurement assembly, the stay time at each measurement point, the movement speed and acceleration, and even trigger a specific action sequence according to a preset logic condition. Once the program is set, the entire measurement process can be started with one key. The device can automatically and continuously execute the scanning task according to the established program without manual intervention.

[0027] The gantry 7 can be made of aluminum alloy to ensure its firmness and have a long service life and more durability. The electrical elements and the cooling water tank are provided with safety devices to prevent dangerous situations caused by improper operation.

[0028] Referring to Figure 4 As shown, in the embodiment, the rotating slide 4 is used to carry the heat flux density measurement assembly, and the heat flux density measurement assembly can be rotated and swung through the rotating slide 4. The rotating sliding table 4 specifically comprises a base 11 made of stainless steel, which is connected with the z-axis sliding block module 3 and can move in the z-axis direction through the z-axis sliding block module 3, a rotating sliding sheet 12 arranged on the base 11 and connected with the base 11 through a bearing transmission device 13 so as to rotate, a positioning seat 14 butted against the rotating sliding sheet 12, a moving seat 16 connected with the positioning seat 14 through a locking shaft 15 and capable of moving vertically around the hinge, and a bearing body 5 of the heat flux density measurement assembly butted against the moving seat 16. A driving mechanism is arranged on the positioning seat 14 and coupled with the rotating sliding sheet 12, which can rotate the heat flux density measurement assembly through operation, and the heat flow meter 6 can be in a horizontal state or an inclined state through cooperation of the positioning seat 14 and the moving seat 16, thereby improving the applicability.

[0029] In the embodiment, the bearing body 5 is a plate body, and a hole for passing through the heat flow meter 6 is arranged on the bearing body 5. Each heat flow meter 6 is connected with the bearing body 5 through two screws. The bearing body 5 is connected with a rectangular heat insulation sheet metal, so that the main body of the heat flow meter 6 passes through the bearing body 5 and the heat insulation sheet metal. The interval between two adjacent heat flow meters 6 is about 100 mm, which is convenient for measuring discrete points of various interval schemes. Since the rotating sliding sheet 12 can rotate around the central axis, 360° free measurement without dead angle can be realized after cooperation.

[0030] Referring to Figure 14 As shown in the figure, as a method embodiment of the present application, the device needs to be moved to the front of the porous medium burner to be measured. The platform is fixed by adjusting the tightness of the dial of the universal wheel 9. The system is started through the intelligent touch screen 10. The cooling water circulation system is connected to ensure that the heat flow meter 6 is in a normal working state. After the preparation work is completed, the parameters are set. In the control software, the scanning area is set, for example, the x-axis direction is -222 mm to 253 mm, and the y-axis direction is -135 mm to 150 mm. The measurement grid density is set, and the step length of the x direction and the y direction is 40 mm. The measurement parameters are set, and the residence time of each measurement point is 0.5 seconds. The data acquisition instrument sampling interval is 0.1 seconds. Then the multi-axis motion assembly starts to run, driving the heat flux density measurement assembly to traverse all the preset grid points in the “bow” shape path. At each grid point, the system pauses and triggers the multi-channel analyzer to record the data of the eight heat flow meters 6 synchronously, as shown in the figure. Figure 12 .

[0031] The step length of the x direction and the y direction in the central region can also be reduced from 40 mm to 5.5 mm. The radiant heat flux density distribution diagram is shown in the figure. Figure 13 It can be clearly seen that the data points in the central region are multiplied, effectively increasing the measurement accuracy.

[0032] The application constructs a highly integrated and automated radiant heat flux density monitoring device, the core value of which lies in innovating the traditional porous medium combustion radiant heat flux density measurement method, realizing the leap from local single point to global two-dimensional and programmed automatic measurement, and improving the measurement efficiency, data accuracy and operation safety to a new level.

[0033] All heat flow meter 6 signals are connected to a multi-channel analyzer, which can not only record data quickly and continuously at an interval of up to 0.1 seconds to meet the needs of transient radiation field measurement, but also provide support for long-time and large-range measurement tasks due to its strong storage capacity. The recorder has powerful data visualization functions, which can present the collected massive data in various forms such as digital display, dynamic curve and comparative column chart in real time or after the event, greatly facilitating researchers to intuitively understand, immediately analyze and horizontally compare the measurement results.

[0034] Through the pre-written control code, users can easily set up complex measurement programs on the smart touch screen 10: define the movement path of the heat flux density measurement assembly, the length of stay at each measurement point, the movement speed and acceleration, and even trigger specific action sequences according to preset logic conditions. Once the program is set, the entire measurement process can be started with one key. The platform will strictly follow the established program to automatically and continuously perform the scanning task.

[0035] Through experiments, compared with the "single point, manual, discrete measurement" method mentioned in the background art, the application shows a performance improvement of several orders of magnitude: for a two-dimensional plane with an area of 500 mm × 500 mm, scanning at a step length of 10 mm requires measuring 2601 points. Using the traditional method, each point requires at least 30 seconds for movement, stabilization, measurement and recording, and the total time is about 21.7 hours. The platform moves and collects simultaneously, only needs to stay at each measurement point for 0.5 seconds, and completes the full-field scanning in about 21.7 minutes, with an efficiency improvement of more than 60 times.

[0036] In an optimized embodiment of the application, a locking assembly is provided between the heat flux density measurement assembly and the moving seat 16, which can disassemble and assemble the heat flux density measurement assembly and the moving seat 16.

[0037] Referring to Figure 4 , Figure 6 and Figure 9As shown, the locking assembly comprises a tray 17 and a supporting arm 18, the heat flow density measuring assembly can be mounted on the supporting arm 18, the supporting arm 18 is connected with the tray 17, the tray 17 is provided with a locking base 19, and the moving base 16 is provided with a locking head, the locking head is inserted into the locking base 19, and the heat flow density measuring assembly and the moving base 16 are connected after the two are matched. Specifically, the locking head comprises a bottom pad 20 and a locking shell 21, the locking shell 21 is cylindrical and one end of the locking shell 21 is connected with the bottom pad 20, the other end of the locking shell 21 is connected with a top rod 22, the top rod 22 is inserted into the locking shell 21, an electric push rod 23 is further arranged in the locking shell 21, the output end of the electric push rod 23 is connected with the top rod 22, when the electric push rod 23 works, the top rod 22 is driven to move axially, so that the top rod 22 is stretched out or retracted from the end of the locking shell 21, a pressing head 24 is connected with the free end of the top rod 22, the pressing head 24 is a frustum body, so that the pressing head 24 is driven to move when the top rod 22 moves. The locking base 19 is provided with an insertion slot 25, when the top rod 22 is stretched out from the locking shell 21, the pressing head 24 enters the insertion slot 25, at least two extension slots 26 are arranged on the locking base 19, the extension slots 26 are communicated with the insertion slot 25, a locking arm 27 is arranged in the extension slot 26, the lower end of the locking arm 27 is connected with a reset spring 28, when the reset spring 28 is in a normal state, the lower end of the locking arm 27 is located in the insertion slot 25, when the pressing head 24 enters the insertion slot 25, the pressing head 24 can exert force on the lower end of the locking arm 27, so that the locking arm 27 is turned over, and the lower end of the locking arm 27 moves into the extension slot 26 in the process. A locking slot 29 is arranged on the outer surface of the locking shell 21, when the locking head exerts force on the lower end of the locking arm 27 to turn over the locking arm 27, the reset spring 28 is compressed, at this time, the reset spring 28 has restoring force, and the upper end of the locking arm 27 is moved, the upper end of the locking arm 27 can enter the locking slot 29, and as the locking head gradually enters the insertion slot 25, the locking shell 21 is clamped by the locking arm 27, at this time, the connection is completed.

[0038] When the heat flow density measuring assembly needs to be dismounted from the moving base 16, the pressing head 24 is only needed to be controlled to retract by the electric push rod 23, at this time, the pressing head 24 moves to the outside of the insertion slot 25, the lower end of the locking arm 27 loses the pushing of the pressing head 24, and the locking arm 27 is reset and turned over under the action of the reset spring 28, so that the upper end of the locking arm 27 is moved out of the locking slot 29, and then the moving base 16 can be moved upward, so that the dismounting of the two is completed, and when the heat flow density assembly fails, the heat flow density assembly can be conveniently replaced.

[0039] When the burner is monitored for thermal radiation using this device, some of the fuel will produce carbon particles after combustion. These carbon particles can adhere to the surface of the heat flux meter 6 of the heat flux density monitoring component, which will affect the sensitivity of the heat flux meter 6.

[0040] Based on the above embodiments, optimizations are made as follows: See Figures 7 to 8 As shown, a further optimized embodiment of the present invention includes a placement platform 30, which is installed on the top of the integrated box. At this time, the placement platform 30 is located below the x-axis slider module 1. A storage space 31 is provided on the placement platform 30, and a cleaning component is provided in the storage space 31. After the heat radiation monitoring is not performed using this device or after the monitoring work is completed using this device, the heat flux density measuring component can be moved into the storage space 31. A cleaning component is installed in the storage space 31. After the heat flux density measuring component is assembled with the placement platform 30, the heat flux meter 6 can enter the storage space 31 and then the surface of the heat flux meter 6 is cleaned by the cleaning component.

[0041] The cleaning assembly includes a central drive shaft 32 and several horizontal extension arms 33 arranged in an array around the central drive shaft 32. Each horizontal extension arm 33 is connected to the central drive shaft 32 through two supporting arms 34, so that there is a certain distance between the horizontal extension arm 33 and the central drive shaft 32. Each horizontal extension arm 33 is provided with a cleaning head 35, which extends along the length of the horizontal extension arm 33. When the cleaning head 35 moves upward, it can couple with the corresponding heat flow meter 6. During the upward movement of the cleaning head 35, it rubs against the heat flow meter 6, thereby cleaning the surface of the heat flow meter 6.

[0042] In this embodiment, the cleaning head 35 includes a cylindrical base body through which the flat extension arm 33 passes. A lint-free cloth cover is provided on the inner side of the base body. The lint-free cloth cover is made of 100% microfiber (polyester / polyamide composite). The fiber diameter is usually 0.1-0.5 micrometers. It can effectively adsorb micron-sized particles and oil films, ensuring that the fibers of the cloth itself will not fall off and remain on the sensing surface during wiping, thus forming new contaminants.

[0043] The vertical extension opening 36 is arranged on the side vertical surface of the placing table 30, and the end of the central driving shaft 32 can pass through the opening 36, and the bottom supporting plate 37 is arranged on the side vertical surface of the placing table 30 and is located below the opening 36, the auxiliary push rod 38 which can vertically extend and retract is installed on the bottom supporting plate 37, the moving supporting plate 39 is installed at the output end of the auxiliary push rod 38, the low-speed auxiliary driving motor 40 is fixed on the moving supporting plate 39, the output end of the auxiliary driving motor 40 is connected with the reducer, the output end of the reducer is connected with the central driving shaft 32, the central driving shaft 32 and the cleaning head 35 can move vertically by the extension or shortening of the auxiliary push rod 38, and the cleaning head 35 can move in a circular track by the working of the auxiliary driving motor 40, after a group of cleaning heads 35 complete cleaning of the heat flow meter 6, the other group of cleaning heads 35 can be moved to the cleaning position by the working of the auxiliary driving motor 40.

[0044] The storage space 31 in the embodiment is provided as two or three, each storage space 31 can assemble a heat flow density measurement assembly, but in use, one is selected for use, so that when a heat flow density measurement assembly is damaged, the heat flow density measurement assembly can be quickly replaced in combination with the arrangement of the locking assembly.

[0045] Referring to Figures 9 to 11 As shown in the further optimized embodiment of the application, the above-mentioned bearing body 5 includes two square plates 41, each square plate 41 is installed with a worm gear 42, the square plate 41 can be flipped around the hinge shaft by the hinge connection of the worm gear 42 and the end of the supporting arm 18, at this time, the center port 43 and the end position port 44 are arranged on the supporting arm 18, the worm gear 42 is located in the end position port 44, the center port 43 and the end position port 44 are connected through the shaft hole, the adjusting driving shaft 45 is installed in the shaft hole, the worm 46 is connected with the outer end of the adjusting driving shaft 45, and the worm 46 is coupled with the worm gear 42, when the adjusting driving shaft 45 starts to rotate, the square plate 41 can be flipped by the cooperation of the worm 46 and the worm gear 42; In order to make the adjusting driving shaft 45 rotate, the matching bevel gears are connected with the inner end of the adjusting driving shaft 45, and the matching bevel gears are located in the center port 43, since the square plates 41 are two, the matching bevel gears are also two, for convenience, they are respectively called the first matching bevel gear 47 and the second matching bevel gear 48, when the different matching bevel gears rotate, the corresponding square plate 41 can be flipped, so that the two square plates 41 can be independently controlled, at this time, the two burners can be monitored at the same time by the device; In order to enable the above-mentioned bevel gears to rotate, an adjusting assembly is installed on the tray 17, which comprises a first adjusting drive motor set 49 and a second adjusting drive motor set 50, the output ends of the two adjusting drive motor sets are both installed with driving bevel gears, the driving bevel gears are engaged with corresponding bevel gears, so as to realize independent adjustment of the two square plates 41 through separate operation of the two adjusting drive motor sets.

[0046] One adjusting drive motor set can also be arranged, but the adjusting drive motor set needs to be able to translate, that is, the adjusting drive motor set can move towards the center port 43 or away from the center port 43, at this time, the output part of the adjusting drive motor set is installed with two driving bevel gears, the two driving bevel gears are coaxially arranged, so that when one of the driving bevel gears is engaged with the first bevel gear 47, the square plate 41 can be flipped, and when the other driving bevel gear is engaged with the second bevel gear 48, the other square plate 41 can be flipped, at this time, the two square plates 41 can not only be flipped, but also can form different flip angles, increasing the applicability.

[0047] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separated, and the components displayed as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple network units. According to actual needs, part or all of the modules can be selected to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0048] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A radiant heat flux monitoring device, characterized by, The application relates to a heat flow density monitoring assembly, which comprises the following components. A heat flow density monitoring assembly is arranged at the outlet of the burner and used for measuring the radiant heat flow density of the environment at the outlet of the burner. The heat flow density monitoring assembly comprises the following components. The heat flow meter (6) is arranged in a plurality of numbers and the plurality of heat flow meters (6) are arranged at equal intervals and can be moved simultaneously. An integrated operation box is further arranged, and control elements are arranged in the integrated operation box.

2. The radiant heat flux monitoring device of claim 1, wherein, The multi-axis movement assembly comprises the following components.

3. The radiant heat flux monitoring device of claim 1, wherein, A y-axis sliding block module (2); An x-axis sliding block module (1) is connected with the y-axis sliding block module (2) and can move along the y-axis direction; A z-axis sliding block module (3) is connected with the x-axis sliding block module (1) and vertically extends; A rotating sliding table (4) is connected with the z-axis sliding block module (3) and the heat flow density monitoring assembly and can drive the heat flow density monitoring assembly to move along the z-axis direction. The rotating sliding table (4) comprises the following components.

4. The radiant heat flux density monitoring device of claim 3, wherein, A base (11) is connected with the z-axis sliding block module (3); A rotating sliding sheet (12) is connected with the base (11) and can rotate; A bearing transmission device (13) is arranged between the base (11) and the rotating sliding sheet (12). A positioning seat (14) is arranged on the rotating sliding sheet (12) and is hinged with a moving seat (16), the moving seat (16) can be connected with the heat flow density monitoring assembly, the moving seat (16) can be flipped around a hinge shaft and drives the heat flow density monitoring assembly to move.

5. The radiant heat flux monitoring apparatus of claim 4, wherein, A locking assembly is arranged between the moving seat (16) and the heat flow density monitoring assembly, and the detachable connection between the moving seat (16) and the heat flow density monitoring assembly is realized through the locking assembly.

6. The radiant heat flux monitoring apparatus of claim 5, wherein, The locking assembly comprises the following components.

7. The radiant heat flux monitoring apparatus of claim 6, wherein, A tray (17) is connected with a supporting arm (18) and is connected with the heat flow density monitoring assembly through the supporting arm (18); A locking base (19) is arranged on the tray (17); A lock head is arranged on the moving seat (16) and can be inserted with the locking base (19). The heat flow density monitoring assembly further comprises a bearing body (5), and a plurality of holes are arranged on the bearing body (5), so that the main body of the heat flow meter (6) can pass through the holes.

8. The radiant heat flux monitoring apparatus according to any one of claims 1 to 7, wherein The following steps are included.

9. A method of monitoring radiant heat flux, applied to the radiant heat flux monitoring apparatus according to any one of claims 1 to 8, characterized by, The path planning and measurement parameters of the scanning area are set; The multi-axis movement assembly moves the heat flow density monitoring assembly to the preset measurement points in sequence; Data collection is carried out at each measurement point, and the readings of the heat flow meter are recorded. The path planning is a variable step path planning, a first moving step is adopted in the preset central area or high gradient area, and a second moving step larger than the first moving step is adopted in other areas.

10. The method of claim 9, wherein the step of monitoring the radiant heat flux density is performed by a pyrometer. ​

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