Boiler expansion deformation measuring instrument

Abstract

The utility model discloses a boiler expansion deformation measuring instrument, which belongs to the technical field of boiler expansion measurement, and comprises a tank body and a support frame, and the lower end of the tank body is fixedly connected with the support frame; the tank body is provided with an air outlet pipe; a detection hole is formed in the side wall of the tank body; the tank body is provided with a rotating component; the rotating assembly is provided with a shielding assembly; the inner end of the shielding assembly is fixedly connected with a detection assembly used for laser ranging and temperature detection. The inner wall of the tank body is fixedly connected with a calibration assembly used for calibrating the detection assembly, the shielding assembly and the detection hole are staggered during measurement, the detection end of the detection assembly directly faces the detection hole, the shielding assembly coincides with the detection hole when measurement is not performed, and the detection end of the detection assembly directly faces the calibration assembly; the top of the tank body is connected with an air cooling assembly used for cooling parts on the inner wall of the tank body. Through the above mode, the calibration assembly is used for calibrating the detection assembly, so that the detection accuracy of the detection assembly is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler expansion measurement technical field, concretely relates to a boiler expansion deformation measuring instrument. BACKGROUND

[0002] The boiler is the whole that is composed of various complex pipe systems and steel structures, and will produce expansion after being heated, especially in the combustion zone. The boiler needs to be detected by the expansion detection equipment when running, which has great significance for the safe operation of the boiler.

[0003] For example, a coal-fired boiler expansion indication automatic acquisition device in Chinese patent CN118258306A, comprising: an acquisition rack, a boiler fixing piece, an acquisition assembly and a dial assembly; the acquisition rack and the boiler fixing piece are used to adjust the acquisition assembly, which can adjust the acquisition position of the acquisition assembly and the dial assembly, detect multiple positions, and have stronger adaptability; the boiler fixing piece and the boiler limiting piece are detachably connected to the outer wall of the boiler, which causes less damage to the furnace body compared to welding fixation, and is more convenient and fast to assemble; the acquisition assembly adopts a splicing structure and is detachably connected to the boiler fixing piece, which can quickly change the detection direction and has stronger practicality; the steel needle of the detection steel needle assembly can measure data through the laser range finder, can realize automatic measurement at regular intervals, and has stronger automation; when the laser range finder fails, the length of the steel needle can be adjusted, and the steel needle is used for detection, which does not affect normal detection.

[0004] The above-mentioned patent can detect expansion, but the detection assembly cannot be protected when it is not needed to detect and detect, the high temperature transmitted by the boiler will affect its sensitivity, and it needs to be calibrated additionally after being used for a period of time, which is not conducive to actual use.

[0005] Therefore, the utility model designs a boiler expansion deformation measuring instrument to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a boiler expansion deformation measuring instrument.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme:

[0008] A boiler expansion deformation measuring instrument, comprising a tank body and a support frame:

[0009] The lower end of the tank body is fixedly connected with the support frame;

[0010] The bottom of the tank body is fixedly connected with an air outlet pipe for exhausting air;

[0011] A detection hole is formed in the side wall of the tank body, and the detection hole is opposite to the side wall of the boiler combustion zone;

[0012] The inner wall of the tank body is fixedly connected with a rotating assembly;

[0013] The driving end of the rotating assembly is fixedly connected with a shielding assembly for shielding the detection hole when not measuring;

[0014] The inner end of the shielding assembly is fixedly connected with a detection assembly for laser ranging and temperature detection;

[0015] The inner wall of the tank body is fixedly connected with a calibration assembly for calibrating the detection assembly, the shielding assembly is misaligned with the detection hole when measuring, and the detection end of the detection assembly is aligned with the detection hole, and the shielding assembly is coincident with the detection hole when not measuring, and the detection end of the detection assembly is aligned with the calibration assembly;

[0016] The top of the tank body is connected with an air cooling assembly for cooling the components on the inner wall of the tank body.

[0017] Further, the rotating assembly includes a third support plate, a driving motor, and a straight shaft, the third support plate is fixedly installed in the tank body, the bottom of the middle end of the third support plate is fixedly connected with the driving motor, the driving end of the driving motor is fixedly connected with the straight shaft, the shielding assembly is fixedly installed on the top of the straight shaft, and the top of the straight shaft is lower than the bottom of the detection hole.

[0018] Further, the shielding assembly includes an arc-shaped baffle and a first support plate, the first support plate is fixedly installed on the straight shaft, the end of the first support plate away from the straight shaft is fixedly connected with the third support plate, the end of the first support plate close to the straight shaft is fixedly connected with the detection assembly, the outer wall of the third support plate is slidingly connected with the inner wall of the tank body, and the arc-shaped baffle completely covers the detection hole when not detecting.

[0019] Further, the tank body and the arc-shaped baffle are made of heat insulation cotton, ceramic fiber, or asbestos.

[0020] Further, the detection assembly includes a temperature sensor, a laser range finder, and a straight plate, the top of the end of the first support plate close to the straight shaft is fixedly connected with the straight plate, the temperature sensor and the laser range finder are fixedly connected on the straight plate, the temperature sensor is located above the laser range finder, the detection ends of the temperature sensor and the laser range finder are arranged away from the inner wall of the arc-shaped baffle, and the top of the straight plate is lower than the inner top of the detection hole.

[0021] Further, the calibration assembly includes a laser range finder calibration block, a black body, and a mounting plate, the mounting plate is fixedly installed on the inner wall of the tank body, the side wall close to the detection hole of the mounting plate is fixedly connected with the black body and the laser range finder calibration block, the detection end of the temperature sensor is aligned with the black body, and the detection end of the laser range finder is aligned with the laser range finder calibration block when not detecting.

[0022] Further, the air cooling assembly comprises an n-shaped pipe, a fan and a second support plate, the n-shaped pipe is fixedly connected to the top of the tank body, the second support plate is fixedly connected to the upper end of the inner wall of the tank body and is fixedly installed on the fan.

[0023] Further, the n-shaped pipe is arranged with the air inlet end downward, and the tank body is located between the air inlet end of the n-shaped pipe and the boiler.

[0024] The utility model discloses a support frame is installed to the outside place of boiler detection, and the detection hole is opposite the side wall of the boiler combustion area, when detecting, rotating assembly drives the shielding component to rotate, shielding component drives the detection component to rotate, shielding component rotates to with the detection hole misregistration, and the detection end of detection component is opposite the detection hole, and the detection component carries out temperature measurement to the outer wall of boiler and measures the interval between detection component and the outer wall of boiler, and the initial value of the interval between detection component and the outer wall of boiler is subtracted the interval measurement value between detection component and the outer wall of boiler, and the boiler expansion deformation value is calculated, and when the difference value is greater than zero, it is explained that the boiler expansion deformation amount increases, and it is explained that there is a security risk, and when the difference value is less than or equal to zero, it is explained that the boiler expansion deformation amount belongs to normal range, and it is explained that it is in the safe range, and the boiler expansion deformation amount is monitored, when not detecting, rotating assembly drives the shielding component to rotate, shielding component drives the detection component to rotate, and the shielding component coincides with the detection hole, and the detection end of detection component is opposite the calibration component, and the shielding component insulates the heat generated by the boiler, reduces the influence of high temperature on detection component, calibration component, air cooling assembly and rotating assembly, simultaneously, the calibration component calibrates detection component, and it is favorable that the detection component detects the high accuracy again, in addition, air cooling assembly drives air flow, and the flowing air drives the heat flow in the tank body, avoids the heat accumulation in the tank body, and reduces the influence of temperature on detection component, calibration component, air cooling assembly and rotating assembly. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, below will be to the drawing used in the embodiment or prior art description briefly introduced. Obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0026] Figure 1 It is a three-dimensional boiler expansion deformation measuring instrument of the utility model Figure 1 ;

[0027] Figure 2 It is a front view of the boiler expansion deformation measuring instrument of the utility model when not detecting

[0028] Figure 3The utility model discloses a boiler expansion deformation measuring instrument front view for the utility model during detection.

[0029] Figure 4 The utility model discloses a boiler expansion deformation measuring instrument solid Figure 2 ;

[0030] Figure 5 For along the A-A direction section of Figure 2 ; Figure 1 ;

[0031] Figure 6 For along the A-A direction section of Figure 2 ; Figure 2 ;

[0032] Figure 7 For along the B-B direction section of Figure 3 .

[0033] The figure's reference respectively represents:

[0034] 1, jar body;2, detection hole;3, sheltering subassembly;31, arc baffle;32, first support plate;4, support frame;5, outlet pipe;6, air cooling subassembly;61, n-shaped pipe;62, fan;63, second support plate;7, detection subassembly;71, temperature inductor;72, laser range finder;73, straight plate;8, calibration subassembly;81, laser range finder calibration block;82, black body;83, mounting plate;9, rotation subassembly;91, third support plate;92, drive motor;93, straight shaft. DETAILED DESCRIPTION

[0035] To make the utility model embodiment's purpose, technical scheme and advantage more clear, below will combine the figure in the utility model embodiment, to the technical scheme in the utility model embodiment, clear, complete is described. Obviously, the described embodiment is the part embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments that the person skilled in the art obtains without making the creative labor, belong to the range of the utility model protection.

[0036] In the following description, "left", "right", "front", "back", "up", "down" are oriented with the perspective of the front view.

[0037] In some embodiments, referring to Figures 1-7 A boiler expansion deformation measuring instrument, comprising jar body 1 and support frame 4:

[0038] Jar body 1 lower end fixedly connected with support frame 4;

[0039] Jar body 1 bottom fixedly connected with the outlet pipe 5 for exhaust;

[0040] The side wall of the tank body 1 is provided with a detection hole 2, and the detection hole 2 is opposite to the side wall of the boiler combustion area;

[0041] The inner wall of the tank body 1 is fixedly connected with a rotating assembly 9;

[0042] The driving end of the rotating assembly 9 is fixedly connected with a shielding assembly 3 for covering the detection hole 2 when not measuring;

[0043] The inner end of the shielding assembly 3 is fixedly connected with a detection assembly 7 for laser ranging and temperature detection;

[0044] The inner wall of the tank body 1 is fixedly connected with a calibration assembly 8 for calibration of the detection assembly 7, the shielding assembly 3 is dislocated with the detection hole 2 when measuring, and the detection end of the detection assembly 7 is opposite to the detection hole 2, the shielding assembly 3 coincides with the detection hole 2 when not measuring, and the detection end of the detection assembly 7 is opposite to the calibration assembly 8;

[0045] The top of the tank body 1 is connected with an air cooling assembly 6 for cooling of the components on the inner wall of the tank body 1;

[0046] The support frame 4 is installed to the outside of the boiler detection, and the detection hole 2 is opposite to the side wall of the boiler combustion area, when detecting, the rotating assembly 9 drives the shielding assembly 3 to rotate, the shielding assembly 3 drives the detection assembly 7 to rotate, the shielding assembly 3 is dislocated with the detection hole 2, and the detection end of the detection assembly 7 is opposite to the detection hole 2, the detection assembly 7 measures the temperature of the outer wall of the boiler and the distance between the detection assembly 7 and the outer wall of the boiler, the initial value of the distance between the detection assembly 7 and the outer wall of the boiler minus the measured value of the distance between the detection assembly 7 and the outer wall of the boiler is the boiler expansion deformation value, and then the difference between the current temperature estimated boiler expansion deformation value is calculated, if the difference is greater than zero, it means that the boiler expansion deformation increases, which means that there is a safety hazard, if the difference is less than or equal to zero, it means that the boiler expansion deformation is within the normal range, which means that it is within the safe range, the boiler expansion deformation is monitored, when not detecting, the rotating assembly 9 drives the shielding assembly 3 to rotate, the shielding assembly 3 drives the detection assembly 7 to rotate, the shielding assembly 3 coincides with the detection hole 2, and the detection end of the detection assembly 7 is opposite to the calibration assembly 8, the shielding assembly 3 isolates the heat generated by the boiler, reducing the influence of high temperature on the detection assembly 7, the calibration assembly 8, the air cooling assembly 6 and the rotating assembly 9, at the same time, the calibration assembly 8 calibrates the detection assembly 7, which is conducive to the high accuracy of the detection assembly 7 in the next detection, in addition, the air cooling assembly 6 drives the air flow, the flowing air drives the heat in the tank body 1 to flow, avoiding the accumulation of heat in the tank body 1, and reducing the influence of temperature on the detection assembly 7, the calibration assembly 8, the air cooling assembly 6 and the rotating assembly 9.

[0047] The support frame 4 is fixedly installed on the mounting frame of the π-shaped boiler.

[0048] The rotating assembly 9 comprises a third support plate 91, a driving motor 92 and a straight shaft 93, the third support plate 91 is fixedly installed in the tank body 1, the bottom of the middle end of the third support plate 91 is fixedly connected with the driving motor 92, the driving end of the driving motor 92 is fixedly connected with the straight shaft 93, the shielding assembly 3 is fixedly installed on the top of the straight shaft 93, and the top of the straight shaft 93 is lower than the bottom of the detection hole 2.

[0049] The driving motor 92 of the rotating assembly 9 drives the straight shaft 93 to rotate, the straight shaft 93 drives the shielding assembly 3 to rotate, and the shielding assembly 3 and the detection assembly 7 are conveniently driven to rotate;

[0050] The shielding assembly 3 comprises an arc-shaped baffle 31 and a first support plate 32, the first support plate 32 is fixedly installed on the straight shaft 93, the end, away from the straight shaft 93, of the first support plate 32 is fixedly connected with the third support plate 91, the end, close to the straight shaft 93, of the first support plate 32 is fixedly connected with the detection assembly 7, the outer wall of the third support plate 91 is slidably connected with the inner wall of the tank body 1, and the arc-shaped baffle 31 completely covers the detection hole 2 when not detecting.

[0051] The tank body 1 and the arc-shaped baffle 31 are made of heat insulation cotton, ceramic fiber or asbestos.

[0052] When detecting, the straight shaft 93 of the rotating assembly 9 drives the first support plate 32 of the shielding assembly 3 to rotate, the first support plate 32 drives the arc-shaped baffle 31 and the detection assembly 7 to rotate, the arc-shaped baffle 31 is rotated to be misaligned with the detection hole 2, and the detection end of the detection assembly 7 is right to the detection hole 2, the temperature of the outer wall of the boiler is measured by the detection assembly 7, and the distance between the detection assembly 7 and the outer wall of the boiler is measured;

[0053] When not detecting, the straight shaft 93 drives the first support plate 32 of the shielding assembly 3 to rotate, the first support plate 32 drives the arc-shaped baffle 31 and the detection assembly 7 to rotate, the arc-shaped baffle 31 is coincided with the detection hole 2, the arc-shaped baffle 31 completely covers the detection hole 2, and the detection end of the detection assembly 7 is right to the calibration assembly 8, the shielding assembly 3 insulates the heat generated by the boiler, and the influence of high temperature on the detection assembly 7, the calibration assembly 8, the air cooling assembly 6 and the rotating assembly 9 is reduced.

[0054] The detection assembly 7 comprises a temperature sensor 71, a laser range finder 72 and a straight plate 73, the top of the end, close to the straight shaft 93, of the first support plate 32 is fixedly connected with the straight plate 73, the straight plate 73 is fixedly connected with the temperature sensor 71 and the laser range finder 72, the temperature sensor 71 is located above the laser range finder 72, and the detection ends of the temperature sensor 71 and the laser range finder 72 are arranged away from the inner wall of the arc-shaped baffle 31.

[0055] The temperature sensor 71, the laser range finder 72, the driving motor 92 and the calibration assembly 8 are electrically connected with the control system outside;

[0056] The support frame 4 is installed to the outside of the boiler detection, and the detection hole 2 is opposite to the side wall of the boiler combustion area. When detecting, the straight shaft 93 drives the first support plate 32 to rotate, the first support plate 32 drives the arc-shaped baffle 31 and the straight plate 73 of the detection assembly 7 to rotate, the arc-shaped baffle 31 is rotated to be out of position with the detection hole 2, and the straight plate 73 drives the temperature sensor 71 and the laser range finder 72 to be opposite to the detection hole 2. The temperature sensor 71 measures the temperature of the outer wall of the boiler, and the laser range finder 72 measures the distance between the laser range finder 72 and the outer wall of the boiler. The measured value is transmitted to the external control system. The external control system subtracts the measured value of the distance between the detection assembly 7 and the outer wall of the boiler from the initial value of the distance between the laser range finder 72 and the outer wall of the boiler to obtain the boiler expansion deformation value. Then, the difference between the current temperature estimated boiler expansion deformation value is calculated. When the difference is greater than zero, it indicates that the boiler expansion deformation increases, which indicates that there is a safety hazard. When the difference is less than or equal to zero, it indicates that the boiler expansion deformation is within a normal range, which indicates that it is within a safe range. The boiler expansion deformation is monitored. When not detecting, the straight shaft 93 drives the first support plate 32 to rotate, the first support plate 32 drives the arc-shaped baffle 31 and the straight plate 73 of the detection assembly 7 to rotate, the arc-shaped baffle 31 coincides with the detection hole 2, and the temperature sensor 71 and the laser range finder 72 of the detection assembly 7 are opposite to the calibration assembly 8. The arc-shaped baffle 31 insulates the heat generated by the boiler, reducing the impact of high temperature on the detection assembly 7, the calibration assembly 8, the air cooling assembly 6 and the rotating assembly 9. At the same time, the calibration assembly 8 calibrates the temperature sensor 71 and the laser range finder 72, which is beneficial to the high accuracy of the detection assembly 7 in the next detection.

[0057] The calibration assembly 8 includes a laser range finder calibration block 81, a black body 82 and a mounting plate 83. The mounting plate 83 is fixedly installed on the inner wall of the tank body 1. The mounting plate 83 is fixedly connected with the black body 82 and the laser range finder calibration block 81 on the side wall close to the detection hole 2. When not detecting, the detection end of the temperature sensor 71 is opposite to the black body 82, and the detection end of the laser range finder 72 is opposite to the laser range finder calibration block 81.

[0058] When not detecting, the straight shaft 93 drives the first support plate 32 to rotate, the first support plate 32 drives the arc-shaped baffle 31 and the straight plate 73 of the detection assembly 7 to rotate, the arc-shaped baffle 31 coincides with the detection hole 2, and the temperature sensor 71 of the detection assembly 7 is opposite to the black body 82. Start the black body 82, calibrate the temperature sensor 71, and the laser range finder 72 is opposite to the laser range finder calibration block 81. The laser range finder 72 detects whether the distance between the laser range finder 72 and the laser range finder calibration block 81 is the distance between the laser range finder 72 and the laser range finder calibration block 81. If not, calibrate the laser range finder 72.

[0059] The air-cooling assembly 6 comprises an n-shaped pipe 61, a fan 62 and a second supporting plate 63, the n-shaped pipe 61 is fixedly connected to the top of the tank body 1, the second supporting plate 63 is fixedly connected to the upper end of the inner wall of the tank body 1, and the second supporting plate 63 is fixedly installed on the fan 62.

[0060] The air inlet end of the n-shaped pipe 61 is arranged downward, and the tank body 1 is located between the air inlet end of the n-shaped pipe 61 and the boiler;

[0061] After the tank body 1 is installed, the fan 62 is started, the fan 62 drives air to enter the tank body 1 through the n-shaped pipe 61, drives the air in the tank body 1 to flow, drives the heat in the tank body 1 to flow, avoids the heat accumulation in the tank body 1, and reduces the influence of temperature on the detection assembly 7, the calibration assembly 8, the air-cooling assembly 6 and the rotating assembly 9.

[0062] 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 the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will 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 boiler expansion deformation measuring instrument comprising a tank body (1) and a support frame (4), characterized in that: the lower end of the tank body (1) is fixedly connected with the support frame (4); the bottom of the tank body (1) is fixedly connected with an exhaust pipe (5) for exhaust; a detection hole (2) is formed in the side wall of the tank body (1), and the detection hole (2) is opposite to the side wall of the boiler combustion area; a rotating assembly (9) is fixedly connected to the inner wall of the tank body (1); the driving end of the rotating assembly (9) is fixedly connected with a shielding assembly (3) for covering the detection hole (2) when not measuring; the inner end of the shielding assembly (3) is fixedly connected with a detection assembly (7) for laser ranging and temperature detection; a calibration assembly (8) is fixedly connected to the inner wall of the tank body (1) for calibration of the detection assembly (7), the shielding assembly (3) is dislocated with the detection hole (2) when measuring, and the detection end of the detection assembly (7) is opposite to the detection hole (2), the shielding assembly (3) coincides with the detection hole (2) when not measuring, and the detection end of the detection assembly (7) is opposite to the calibration assembly (8); a forced air cooling assembly (6) is connected to the top of the tank body (1) for cooling the components on the inner wall of the tank body (1).

2. The boiler expansion deformation measuring instrument according to claim 1, characterized by The rotating assembly (9) comprises a third support plate (91), a driving motor (92) and a straight shaft (93), the third support plate (91) is fixedly installed in the tank body (1), the driving motor (92) is fixedly connected to the bottom of the middle end of the third support plate (91), the driving end of the driving motor (92) is fixedly connected with the straight shaft (93), the shielding assembly (3) is fixedly installed on the top of the straight shaft (93), and the top of the straight shaft (93) is lower than the bottom of the detection hole (2).

3. The boiler expansion deformation measuring instrument according to claim 2, characterized in that, The shielding assembly (3) comprises an arc-shaped baffle (31) and a first support plate (32), the first support plate (32) is fixedly installed on the straight shaft (93), the end of the first support plate (32) away from the straight shaft (93) is fixedly connected with the third support plate (91), the end of the first support plate (32) close to the straight shaft (93) is fixedly connected with the detection assembly (7), and the outer wall of the third support plate (91) is slidingly connected with the inner wall of the tank body (1), the arc-shaped baffle (31) completely covers the detection hole (2) when not detecting.

4. The boiler expansion deformation measuring instrument according to claim 3, characterized in that, The tank body (1) and the arc-shaped baffle (31) are made of heat insulation cotton, ceramic fiber or asbestos.

5. The boiler expansion deformation measuring instrument according to claim 4, characterized in that, The detection assembly (7) comprises a temperature sensor (71), a laser range finder (72) and a straight plate (73), the top of the end of the first support plate (32) close to the straight shaft (93) is fixedly connected with the straight plate (73), the temperature sensor (71) and the laser range finder (72) are fixedly connected to the straight plate (73), the temperature sensor (71) is located above the laser range finder (72), the detection ends of the temperature sensor (71) and the laser range finder (72) are arranged away from the inner wall of the arc-shaped baffle (31), and the top of the straight plate (73) is lower than the inner top of the detection hole (2).

6. The boiler expansion deformation measuring instrument according to claim 5, characterized in that, The calibration assembly (8) comprises a laser range finder calibration block (81), a black body (82) and a mounting plate (83), the mounting plate (83) is fixedly installed on the inner wall of the tank body (1), the mounting plate (83) is fixedly connected with the black body (82) and the laser range finder calibration block (81) near the side wall of the detection hole (2), when not detecting, the detection end of the temperature sensor (71) is opposite to the black body (82), and the detection end of the laser range finder (72) is opposite to the laser range finder calibration block (81).

7. A boiler distortion expansion measuring instrument according to any one of claims 1 to 6, wherein The air cooling assembly (6) comprises an n-shaped pipe (61), a fan (62) and a second supporting plate (63), the n-shaped pipe (61) is fixedly connected to the top of the tank body (1), the second supporting plate (63) is fixedly connected to the upper end of the inner wall of the tank body (1), and the second supporting plate (63) is fixedly installed on the fan (62).

8. The boiler expansion deformation measuring instrument according to claim 7, characterized in that, The air inlet end of the n-shaped pipe (61) is arranged downward, and the tank body (1) is located between the air inlet end of the n-shaped pipe (61) and the boiler.

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