Automatic calibration device for infrared temperature measurement probe for boiler safety monitoring

Abstract

The invention relates to the technical field of temperature measurement calibration, in particular to an infrared temperature measurement probe automatic calibration device for boiler safety monitoring, which comprises a bedplate, a connecting seat is movably mounted on the upper surface of the bedplate, a sleeve shell is fixedly mounted on the front surface of the connecting seat, and a connector is fixedly connected to the front end of the sleeve shell. The connector and the inner side of the sleeve shell are jointly provided with a heating mechanism, the front end of the connector is fixedly provided with a curved surface cover, a port of the curved surface cover is fixedly provided with an air pipe, the lower surface of the air pipe is fixedly embedded with a pressure regulating pipe, and the inner surface of the air pipe is provided with at least three piston rod mechanisms which are arranged in an annular array; according to the infrared temperature measuring head calibration device, the infrared temperature measuring head fixed to the installation position can be automatically aligned, so that the calibration precision is improved, operation is convenient, through the limiting technology of a piston rod mechanism, the stability in the calibration process is effectively guaranteed, and the calibration precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature measurement calibration, and particularly relates to an automatic calibration device for an infrared temperature measurement probe for boiler safety monitoring. Background Art

[0002] Calibrating an infrared temperature measurement probe is an important process to ensure accurate measurement of an infrared thermometer in a boiler. During operation, the infrared thermometer is aligned with a blackbody furnace, and the displayed temperature is recorded. If there is a deviation between the reading and the actual temperature of the blackbody furnace, the settings of the infrared thermometer need to be adjusted according to the manufacturer's instruction manual until the reading is accurate.

[0003] Since the infrared temperature measurement probe in the boiler is often fixedly installed on the equipment, it is particularly inconvenient to remove it for temperature measurement calibration. Chinese Patent with application number 202310775400.9 and application date June 28, 2023 discloses a calibration device for an infrared temperature measurement probe, which can calibrate the infrared temperature measurement probe in the reaction chamber of a semiconductor wafer processing device by setting a calibration substrate in the reaction chamber of the semiconductor wafer processing device and aligning a standard heat source with the infrared temperature measurement probe through a calibration through hole on the calibration substrate. The temperature measurement is carried out by using a probe jack, but for infrared temperature measurement heads of different sizes, the adaptability is poor, and it needs to be customized for temperature measurement. In addition, its operation is not flexible enough. Due to the small overall volume of the infrared temperature measurement head, the process of inserting it into the jack is rather inconvenient. Therefore, we provide an automatic calibration device for an infrared temperature measurement probe for boiler safety monitoring. Summary of the Invention

[0004] The purpose of the present invention is to solve the drawbacks in the background art, and propose an automatic calibration device for an infrared temperature measurement probe for boiler safety monitoring.

[0005] To achieve the above object, the technical solution adopted by the present invention is: an automatic calibration device for an infrared temperature measurement probe for boiler safety monitoring, including a table board, on the upper surface of which a connection seat is movably installed, on the front surface of the connection seat a sleeve housing is fixedly installed, at the front end of the sleeve housing a connection head is fixedly connected, a heating mechanism is jointly arranged inside the connection head and the sleeve housing, at the front end of the connection head a curved surface cover is fixedly installed, at the port of the curved surface cover an air pipe is fixedly arranged, on the lower surface of the air pipe a pressure regulating pipe is fixedly embedded, and on the inner surface of the air pipe there are arranged no less than three piston rod mechanisms arranged in a circular array. On one side of the table board, a connection folding plate is fixedly installed, and on the side surface of the connection folding plate a vertical arm is movably connected; The central axis of the piston rod mechanism intersects with the central axis of the sleeve housing, and when the piston rod mechanism extends, it pushes the infrared temperature measurement head backward.

[0006] Preferably, transverse sliding openings extending towards both sides are formed on the upper surface of the platen. A sliding column is fixedly connected to the lower surface of the connecting seat. The sliding column slidably passes through the inside of the transverse sliding opening. A limiting disk in threaded fit is sleeved on the lower end of the sliding column. The limiting disk is in movable contact with the lower surface of the platen.

[0007] Preferably, the heating mechanism includes a heating core fixedly embedded on the inner wall of the housing. A heat equalizing pipe is arranged inside the heating core. The rear end of the heat equalizing pipe is fixedly connected to the inner wall of the housing. The front end port of the heat equalizing pipe is fixedly connected with a diaphragm. The diaphragm is fixedly embedded inside the connecting head, and the front end of the diaphragm is embedded on the surface of the curved surface cover.

[0008] Preferably, air inlet holes and air outlet holes are commonly formed on the outer surfaces of the housing and the heating core. A solenoid valve is fixedly installed at the lower end port of the air inlet hole. A check valve is fixedly installed at the upper end port of the air outlet hole. The lower end port of the solenoid valve is fixedly connected with a first hose.

[0009] Preferably, the lower end port of the pressure regulating pipe is fixedly connected with a second hose. A mounting plate is fixedly installed on the upper surface of the platen near the corner. Two clamping blocks are fixedly arranged on the upper surface of the mounting plate. The clamping blocks are made of rubber. Both the first hose and the second hose pass through between the two clamping blocks.

[0010] Preferably, the piston rod mechanism includes a limiting pipe fixedly embedded on the inner surface of the air pipe. A plug rod is slidably inserted into the port of the limiting pipe. One end of the plug rod located inside the limiting pipe is fixedly connected with a piston column. The piston column is in sliding fit with the inner wall of the limiting pipe. The other end of the plug rod located outside the limiting pipe is fixedly connected with a contact head.

[0011] Preferably, a rotating groove is formed on the outer surface of the contact head. A clamping plate is fixedly connected to the end surface of the plug rod. The clamping plate is slidably clamped inside the rotating groove. A middle shaft is fixedly connected to the inner wall of the rotating groove. The middle shaft rotatably penetrates through the inside of the clamping plate. Guide strips are convexly arranged on the outer surface of the plug rod. The guide strips are in sliding fit with the port of the limiting pipe.

[0012] Preferably, a vertically extending vertical sliding opening is formed through the outer surface of the connecting folding plate. A slider is slidably clamped inside the vertical sliding opening. One side of the slider is in rotational fit with the vertical arm.

[0013] Preferably, a rotating shaft is fixedly connected to one side of the slider. An annular groove is formed on the outer surface of the rotating shaft. The vertical arm is rotatably sleeved inside the annular groove.

[0014] Preferably, a top arm is vertically and fixedly connected to the upper end of the vertical arm. A plurality of mounting holes are formed through the upper surface of the top arm.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention can automatically align the infrared temperature measuring head fixed at the installation location, thereby improving the calibration accuracy and facilitating the operation; Through the limiting technology of the piston rod mechanism, the stability during the calibration process is effectively guaranteed, and the calibration accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 2 It is an Figure 1 enlarged view at A of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 3 It is another schematic view of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 4 It is a sectional view of the housing of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 5 It is an Figure 4 enlarged view at B of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 6 It is a schematic view of the insertion rod of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 7 It is a sectional view of the table board of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 8 It is a sectional view of the vertical arm of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention; Figure 9 It is a partial schematic view during the use of an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring according to the present invention.

[0017] 1. Table board; 2. Horizontal sliding opening; 3. Sliding column; 4. Limiting disk; 5. Connecting seat; 6. Housing; 7. Heating core; 8. Heat equalizing pipe; 9. Air inlet hole; 10. Solenoid valve; 11. Exhaust hole; 12. Check valve; 13. Connector; 14. Diaphragm; 15. Curved surface cover; 16. Air pipe; 17. Limiting pipe; 18. Piston column; 19. Insertion rod; 20. Contact head; 21. Pressure regulating pipe; 22. First hose; 23. Second hose; 24. Mounting plate; 25. Clamping block; 26. Connecting folding plate; 27. Vertical arm; 28. Top arm; 29. Mounting hole; 30. Vertical sliding opening; 31. Slide block; 32. Rotating shaft; 33. Ring groove; 34. Rotating groove; 35. Inserting plate; 36. Intermediate shaft; 37. Guide bar; 38. Infrared temperature measuring head. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and other obvious variations can be conceived by those skilled in the art.

[0019] As Figures 1-9 shown, an automatic calibration device for an infrared temperature measuring probe for boiler safety monitoring includes a table board 1. A connecting seat 5 is movably installed on the upper surface of the table board 1. A sleeve 6 is fixedly installed on the front surface of the connecting seat 5. A connecting head 13 is fixedly connected to the front end of the sleeve 6. A heating mechanism is jointly arranged inside the connecting head 13 and the sleeve 6. A curved surface cover 15 is fixedly installed at the front end of the connecting head 13. An air pipe 16 is fixedly arranged at the port of the curved surface cover 15. A pressure regulating pipe 21 is fixedly embedded on the lower surface of the air pipe 16. No less than three piston rod mechanisms arranged in an annular array are arranged on the inner surface of the air pipe 16. A connecting folding plate 26 is fixedly installed on one side of the table board 1. A vertical arm 27 is movably connected to the side surface of the connecting folding plate 26; the central axis of the piston rod mechanism intersects with the central axis of the sleeve 6. When the piston rod mechanism extends, the infrared temperature measuring head 38 is pushed backward.

[0020] As Figure 7 shown, transverse sliding ports 2 extending in both side directions are opened on the upper surface of the table board 1. A sliding column 3 is fixedly connected to the lower surface of the connecting seat 5. The sliding column 3 slides through the inside of the transverse sliding port 2. The sliding column 3 can move horizontally along the inside of the transverse sliding port 2. At the same time, the sliding column 3 can relatively rotate inside the transverse sliding port 2. A limiting disk 4 in threaded fit is sleeved on the lower end of the sliding column 3. The limiting disk 4 is in movable contact with the lower surface of the table board 1. After unscrewing the limiting disk 4, the sliding column 3 can be taken out from the inside of the transverse sliding port 2. This part of the design makes the structure assembly and disassembly convenient.

[0021] As Figure 4 shown, the heating mechanism includes a heating core 7 fixedly embedded on the inner wall of the sleeve 6. The heating core 7 is also called a heating furnace core and is usually made of materials with high temperature resistance and high thermal conductivity to ensure stable operation at high temperatures and reduce the temperature gradient of the cavity wall. For example, copper, stainless steel, and high-aluminum pipes, etc. This embodiment will not elaborate too much. A heat equalizing pipe 8 is arranged inside the heating core 7. The rear end of the heat equalizing pipe 8 is fixedly connected to the inner wall of the sleeve 6. The heat equalizing pipe 8 is usually made of materials with high thermal conductivity, such as stainless steel or special alloys, to ensure that heat can be distributed quickly and evenly. A diaphragm 14 is fixedly connected to the front end port of the heat equalizing pipe 8. The diaphragm 14 is fixedly embedded inside the connecting head 13, and the front end of the diaphragm 14 is embedded in the surface of the curved surface cover 15. The diaphragm 14 restricts and regulates the direction and range of the radiant energy emitted from the heat equalizing pipe 8 to ensure irradiation on the infrared temperature measuring head 38.

[0022] The outer surfaces of the casing 6 and the heating core 7 are jointly provided with an air inlet hole 9 and an exhaust hole 11. A solenoid valve 10 is fixedly installed at the lower end port of the air inlet hole 9, and a check valve 12 is fixedly installed at the upper end port of the exhaust hole 11. The lower end port of the solenoid valve 10 is fixedly connected to a first hose 22. During operation, a protective gas is filled into the first hose 22 to protect the inner structure from oxidation by air when heating up. The original gas inside will be discharged through the check valve 12 during filling to prevent the inner air pressure from being too high and causing the structure to rupture and damage.

[0023] As Figure 1 , Figure 2 , Figure 4 shown, the lower end port of the pressure regulating pipe 21 is fixedly connected to a second hose 23. A mounting plate 24 is fixedly installed on the upper surface of the table board 1 near the corner. Two clamping blocks 25 are fixedly arranged on the upper surface of the mounting plate 24. The clamping blocks 25 are made of rubber. Both the first hose 22 and the second hose 23 pass through between the two clamping blocks 25. The two clamping blocks 25 are used to position the local positions of the first hose 22 and the second hose 23, preventing the first hose 22 and the second hose 23 from being pulled significantly when the casing 6 moves relative to the table board 1, which affects the positioning process of the casing 6.

[0024] As Figure 4 , Figure 5 , Figure 6 shown, the piston rod mechanism includes a limiting pipe 17 fixedly embedded in the inner surface of the air pipe 16. A plug rod 19 is slidably inserted into the port of the limiting pipe 17. One end of the plug rod 19 located inside the limiting pipe 17 is fixedly connected to a piston column 18. The piston column 18 is slidably matched with the inner wall of the limiting pipe 17. One end of the plug rod 19 located outside the limiting pipe 17 is fixedly connected to a contact head 20. The surface of the contact head 20 is smooth to reduce scratching of the infrared temperature measuring head 38.

[0025] A rotating groove 34 is formed on the outer surface of the contact head 20. A clamping plate 35 is fixedly connected to the end surface of the plug rod 19. The clamping plate 35 is slidably clamped inside the rotating groove 34. The inner wall of the rotating groove 34 is fixedly connected to an intermediate shaft 36. The intermediate shaft 36 rotatably penetrates through the inside of the clamping plate 35. A guide strip 37 protrudes from the outer surface of the plug rod 19. The guide strip 37 is slidably matched with the port of the limiting pipe 17. The contact head 20 rotates around the intermediate shaft 36, which can prevent it from hindering the rearward movement of the infrared temperature measuring head 38 after pressing it.

[0026] As Figure 7 , Figure 8As shown, a vertically extending vertical sliding opening 30 is formed through the outer surface of the connecting folding plate 26. A sliding block 31 is slidably clamped inside the vertical sliding opening 30. One side of the sliding block 31 is rotatably engaged with the vertical arm 27. A rotating shaft 32 is fixedly connected to one side of the sliding block 31. A ring groove 33 is formed on the outer surface of the rotating shaft 32. The vertical arm 27 is rotatably sleeved inside the ring groove 33. This part of the design enables the connecting folding plate 26 to rotate relative to the vertical arm 27 and also move up and down relative to the vertical arm 27.

[0027] A top arm 28 is vertically and fixedly connected to the upper end of the vertical arm 27. A plurality of mounting holes 29 are formed through the upper surface of the top arm 28. During use, according to the needs of the use environment, additional extension arms can be connected through the mounting holes 29 and bolts to extend the position of the curved surface cover 15 into a narrower equipment gap to align with the infrared temperature measuring head 38.

[0028] During use, the middle of the curved surface cover 15 is roughly aligned with the infrared temperature measuring head 38, and then moved forward. The end of the infrared temperature measuring head 38 contacts the surface of the curved surface cover 15, causing the curved surface cover 15 to move relative to the infrared temperature measuring head 38. During this process, the housing 6 can rotate around the sliding column 3, the housing 6 can horizontally move relative to the platen 1, the housing 6 can move up and down relative to the vertical arm 27, and the housing 6 can rotate around the rotating shaft 32. The above multiple degrees of freedom ensure that after the curved surface cover 15 moves forward, the central axis of the housing 6 will finally be coaxial with the infrared temperature measuring head 38. Therefore, the device can automatically position to ensure that the infrared temperature measuring head 38 can be aligned with the aperture 14 during temperature measurement.

[0029] During use, by inflating the second hose 23, the air pressure in the air pipe 16 is increased, causing the piston column 18 to be pushed by the air pressure, so that a plurality of insertion rods 19 synchronously extend out of the inside of the limiting tube 17, and the contact head 20 contacts the outer surface of the infrared temperature measuring head 38 and pushes it backward, as shown in Figure 8 As shown, further ensuring the contact between the curved surface cover 15 and the end of the infrared temperature measuring head 38, ensuring that the infrared temperature measuring head 38 can be aligned with the aperture 14, thereby effectively improving the calibration accuracy.

[0030] After pressurizing the air pipe 16, each contact head 20 tightly presses the infrared temperature measuring head 38. At this time, since the contact head 20 can rotate around the middle axis 36, it will not hinder the infrared temperature measuring head 38 from moving forward or backward, ensuring that the rear end of the infrared temperature measuring head 38 can be close to the aperture 14 and preventing scratches between the end of the infrared temperature measuring head 38 and the aperture 14 or the curved surface cover 15.

[0031] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic calibration device for infrared temperature measuring probes for boiler safety monitoring, comprising a platform (1), characterized in that: A connecting seat (5) is movably mounted on the upper surface of the table (1), a casing (6) is fixedly mounted on the front surface of the connecting seat (5), a connecting head (13) is fixedly connected to the front end of the casing (6), a heating mechanism is provided on the inner side of the connecting head (13) and the casing (6), a curved cover (15) is fixedly mounted on the front end of the connecting head (13), an air pipe (16) is fixedly mounted on the port of the curved cover (15), a pressure regulating pipe (21) is fixedly embedded on the lower surface of the air pipe (16), and at least three piston rod mechanisms arranged in a circular array are provided on the inner surface of the air pipe (16), a connecting folding plate (26) is fixedly mounted on one side of the table (1), and a vertical arm (27) is movably connected to the side of the connecting folding plate (26); The central axis of the piston rod mechanism intersects with the central axis of the casing (6), and when the piston rod mechanism is extended, the infrared temperature measuring head (38) is pushed backwards.

2. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 1 is characterized in that: The upper surface of the table plate (1) is provided with a horizontal sliding opening (2) extending in both directions. The lower surface of the connecting seat (5) is fixedly connected with a sliding column (3). The sliding column (3) slides through the inner side of the horizontal sliding opening (2). The lower end of the sliding column (3) is sleeved with a threaded limit plate (4). The limit plate (4) is movably in contact with the lower surface of the table plate (1).

3. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 1 is characterized in that: The heating mechanism comprises a heating core (7) fixedly embedded on the inner wall of the casing (6); a heat equalizing tube (8) is arranged on the inner side of the heating core (7); the rear end of the heat equalizing tube (8) is fixedly connected to the inner wall of the casing (6); the front end of the heat equalizing tube (8) is fixedly connected to an aperture (14); the aperture (14) is fixedly embedded on the inner side of the connector (13), and the front end of the aperture (14) is embedded in the surface of the curved cover (15).

4. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 3 is characterized in that: An air inlet (9) and an air outlet (11) are provided on the outer surfaces of the casing (6) and the heating core (7); a solenoid valve (10) is fixedly mounted at the lower end of the air inlet (9); a one-way valve (12) is fixedly mounted at the upper end of the air outlet (11); and a first hose (22) is fixedly connected to the lower end of the solenoid valve (10).

5. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 4 is characterized in that: The lower end port of the pressure regulating tube (21) is fixedly connected to a second hose (23); a mounting plate (24) is fixedly mounted on the upper surface of the platform (1) near a corner; two clamping blocks (25) are fixedly mounted on the upper surface of the mounting plate (24); the clamping blocks (25) are made of rubber; the first hose (22) and the second hose (23) both pass through between the two clamping blocks (25).

6. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 1 is characterized in that: The piston rod mechanism comprises a limit tube (17) fixedly embedded in the inner surface of the air pipe (16), an insertion rod (19) slidably inserted into the end of the limit tube (17), one end of the insertion rod (19) located inside the limit tube (17) is fixedly connected to a piston column (18), the piston column (18) is slidably matched with the inner wall of the limit tube (17), and one end of the insertion rod (19) located outside the limit tube (17) is fixedly connected to a contact head (20).

7. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 6 is characterized by: The outer surface of the contact head (20) is provided with a rotation groove (34); the end surface of the insertion rod (19) is fixedly connected to a snap-in plate (35); the snap-in plate (35) is slidably snapped into the inner side of the rotation groove (34); the inner wall of the rotation groove (34) is fixedly connected to an intermediate shaft (36); the intermediate shaft (36) is rotatably passed through the inner side of the snap-in plate (35); the outer surface of the insertion rod (19) is protrudingly provided with a guide bar (37); the guide bar (37) is slidably matched with the end of the limit tube (17).

8. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 1 is characterized in that: The outer surface of the connecting folding plate (26) is penetrated by a vertical sliding opening (30) extending in the vertical direction, and a sliding block (31) is slidably mounted inside the vertical sliding opening (30), and one side of the sliding block (31) is rotatably matched with the vertical arm (27).

9. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 8 is characterized in that: A rotating shaft (32) is fixedly connected to one side of the sliding block (31), an annular groove (33) is provided on the outer surface of the rotating shaft (32), and the vertical arm (27) is rotatably sleeved on the inner side of the annular groove (33).

10. The automatic calibration device for infrared temperature measuring probes for boiler safety monitoring according to claim 1 is characterized in that: The upper end of the vertical arm (27) is vertically fixedly connected to a top arm (28), and a plurality of mounting holes (29) are formed through the upper surface of the top arm (28).

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