Thermocouple automatic decoking system

Abstract

The utility model discloses a thermocouple automatic decoking system which comprises a fixing frame arranged on the outer side of a furnace body, a thermocouple extending into the furnace body is arranged on one side of the fixing frame, a decoking transmission sleeve is movably arranged on the furnace body, and a decoking head is arranged at the end, extending into the furnace body, of the decoking transmission sleeve. The decoking transmission sleeve and the decoking head are arranged on the outer side of the thermocouple in a sleeving mode at the same time, and a driving mechanism used for driving the decoking transmission sleeve to move is further arranged in the fixing frame. Cokes on the thermocouple and coke blocks on the inner side of a surrounding hearth can be automatically removed while the temperature of the thermocouple can be normally measured, so that the problems of coking, burning bending, burning-out and the like of the thermocouple can be effectively solved, the temperature measurement failure rate of the thermocouple can be reduced, the maintenance cost and the workload can be reduced, and the service life of the thermocouple can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of thermocouples, and in particular to a thermocouple automatic defocusing system. Background Art

[0002] At present, incinerators generally use thermocouples for temperature measurement. However, due to the large amount of dust in the furnace, the flue gas contains corrosive gases, dust and water vapor, etc., which makes the working environment of the thermocouples relatively harsh. The thermocouples inserted into the furnace for temperature measurement are prone to dust accumulation and coking, and are also easily covered by the coke blocks inside the furnace, resulting in low temperature measurement. In addition, due to the high temperature in the furnace, the thermocouples are easily bent in a high temperature environment for a long time, and the measuring end may even be burned off, resulting in the inability of the thermocouples to measure temperature normally.

[0003] In the actual production process, maintenance personnel usually remove the coke on the thermocouple by regularly pulling it out. However, during the high-temperature extraction of the thermocouple, the thermocouple is prone to breakage due to cold, and there is a risk of burns. At the same time, for thermocouples that are stuck and cannot be pulled out or are burned out, new thermocouples are usually required to be replaced, which results in high maintenance costs and workload. Utility Model Content

[0004] The purpose of the present application is to provide a thermocouple automatic decoking system, which can automatically remove the coke on the thermocouple and the coke blocks on the surrounding furnace inner side when the thermocouple is measuring temperature normally, effectively solve the problems of coking, bending and burning of thermocouples, reduce the failure rate of thermocouple temperature measurement, reduce maintenance costs, and extend the service life of thermocouples.

[0005] The present application provides a thermocouple automatic defocusing system that adopts the following technical solution:

[0006] A thermocouple automatic decoking system comprises a fixed frame arranged on the outside of a furnace body, a thermocouple extending into the furnace body is arranged on one side of the fixed frame, a decoking transmission sleeve is movably arranged on the furnace body, a decoking head is arranged at one end of the decoking transmission sleeve extending into the furnace body, the decoking transmission sleeve and the decoking head are simultaneously sleeved on the outside of the thermocouple, and a driving mechanism for driving the decoking transmission sleeve to move is also arranged in the fixed frame.

[0007] Furthermore, the driving mechanism includes a movable platform arranged on the outer side of one end of the decoking transmission sleeve away from the decoking head, the movable platform and the decoking transmission sleeve are connected by a bearing, a movable component is arranged between the fixed frame and the movable platform, a fixed connecting bracket is arranged on the movable platform, and a rotating component is arranged between the fixed connecting bracket and the decoking transmission sleeve.

[0008] Furthermore, the rotating assembly includes a micro motor arranged on the fixed connecting bracket, the output end of the micro motor is connected to a driving wheel, the outer side of the decoking transmission sleeve is provided with a driven wheel, and a belt is provided between the driven wheel and the driving wheel.

[0009] Furthermore, the moving component includes an electric push rod arranged in the fixed frame, the pushing end of the electric push rod is connected to one side of the moving platform, the moving platform is symmetrically provided with moving sleeves, and one side of the fixed frame is symmetrically provided with guide rods matching with the moving sleeves.

[0010] Furthermore, the decoking head and the decoking transmission sleeve are connected by threads.

[0011] Furthermore, one end of the decoking head away from the decoking transmission sleeve has a sawtooth structure.

[0012] Further, the fixing bracket includes a first fixing bracket, a second fixing bracket, a third fixing bracket and a fourth fixing bracket, the first fixing bracket is arranged on the outer side of the furnace body, one side of the second fixing bracket and one side of the fourth fixing bracket are simultaneously arranged on one side of the first fixing bracket, and both ends of the third fixing bracket are respectively connected to one side of the second fixing bracket and the fourth fixing bracket through fixing components.

[0013] Furthermore, the fixing assembly includes fixing plates arranged at both ends of the third fixing bracket, the fixing plates are symmetrically provided with fixing holes, and threaded holes are symmetrically provided on one side of the second fixing bracket and the fourth fixing bracket, the threaded holes correspond to the fixing holes, and the fixing plates are also symmetrically provided with fixing screws matching the fixing holes, and the fixing screws are threadedly connected to the threaded holes.

[0014] Furthermore, a flange is provided at one end of the thermocouple extending out of the furnace body, and the flange is connected to the third fixing bracket by bolts.

[0015] Furthermore, a control system is also provided outside the furnace body, and the control system is electrically connected to the micro motor and the electric push rod respectively to control the micro motor and the electric push rod.

[0016] Compared with the prior art, the beneficial effect of the present application lies in that: by setting up a structure in which a fixed frame, a thermocouple, a decoking transmission sleeve, a decoking head and a driving mechanism cooperate with each other, the thermocouple can automatically remove the coke on the thermocouple and the coke blocks on the inner side of the surrounding furnace while measuring the temperature normally, thereby effectively solving the problems of coking, bending and burning of the thermocouple, thereby reducing the failure rate of thermocouple temperature measurement, reducing maintenance costs and workload, and extending the service life of the thermocouple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the thermocouple automatic focus clearing system of the embodiment of the present application.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the mid-coking transmission sleeve and the coking head after movement.

[0019] Figure 3 It is a schematic diagram of the structure of the focus clearing head according to an embodiment of the present application.

[0020] Explanation of the reference numerals: 1. furnace body; 2. fixing frame; 21. first fixing bracket; 211. guide rod; 22. second fixing bracket; 23. third fixing bracket; 231. fixing plate; 232. fixing screw; 24. fourth fixing bracket; 3. thermocouple; 31. flange; 4. decoking transmission sleeve; 41. driven wheel; 5. decoking head; 6. moving platform; 61. bearing; 62. moving sleeve; 7. fixed connecting bracket; 71. micro motor; 72. driving wheel; 8. belt; 9. electric push rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 This application is described in further detail.

[0022] The present application embodiment discloses a thermocouple automatic defocusing system, referring to Figure 1 and Figure 2 In this embodiment, the automatic decoking system includes a fixing frame 2, a thermocouple 3, a decoking transmission sleeve 4, a decoking head 5 and a driving mechanism. The fixing frame 2 is installed on the outside of the furnace body 1 of the incinerator, and the fixing frame 2 includes a first fixing bracket 21, a second fixing bracket 22, a third fixing bracket 23 and a fourth fixing bracket 24, wherein the first fixing bracket 21 is fixedly installed on the outside of the furnace body 1; one side of the second fixing bracket 22 and one side of the fourth fixing bracket 24 are simultaneously installed on the side of the first fixing bracket 21 away from the furnace body 1.

[0023] One end of the third fixing bracket 23 is connected to the side of the second fixing bracket 22 away from the first fixing bracket 21 through a fixing component, and the other end of the third fixing bracket 23 is also connected to the side of the fourth fixing bracket 24 away from the first fixing bracket 21 through a fixing component; through the structure in which the first fixing bracket 21, the second fixing bracket 22, the third fixing bracket 23, the fourth fixing bracket 24 and the fixing component cooperate with each other, a square-shaped frame is formed.

[0024] Specifically, the fixing assembly includes a fixing plate 231 and fixing screws 232. There are two fixing plates 231, which are respectively vertically mounted on the two ends of the third fixing bracket 23, and the two fixing plates 231 are respectively abutted against the outer sides of the second fixing bracket 22 and the fourth fixing bracket 24; and fixing holes are symmetrically provided on the two fixing plates 231, and threaded holes are symmetrically provided on the outer side walls of the second fixing bracket 22 and the fourth fixing bracket 24. When the two fixing plates 231 are respectively abutted against the outer sides of the second fixing bracket 22 and the fourth fixing bracket 24, the fixing holes on the fixing plates 231 correspond to the threaded holes.

[0025] At the same time, four fixing screws 232 are provided, and the four fixing screws 232 are respectively installed on the two fixing plates 231, and the fixing screws 232 cooperate with the fixing holes so that the fixing screws 232 pass through the fixing plates 231 along the fixing holes; and the fixing screws 232 are also threadedly connected with the threaded holes, so that the two fixing plates 231 are respectively fixedly installed on the outer sides of the second fixing bracket 22 and the fourth fixing bracket 24 through the fixing screws 232, so that the two ends of the third fixing bracket 23 are respectively fixedly connected to the second fixing bracket 22 and the fourth fixing bracket 24, thereby being able to play a role of fixing and supporting the entire device.

[0026] In addition, refer to Figure 1 and Figure 2 In this embodiment, corresponding through holes are provided in the middle of one side of the furnace body 1 and in the middle of one side of the first fixed bracket 21, and one end of the thermocouple 3 extends into the interior of the furnace body 1 along the two through holes to measure the temperature inside the furnace body 1; and the other end of the thermocouple 3 passes through one side of the third fixed bracket 23, and the end of the thermocouple 3 extending out of the third fixed bracket 23 is installed with a flange 31, and the flange 31 is fixedly connected to the outer side of the third fixed bracket 23 by bolts, so that one end of the thermocouple 3 can be fixedly installed on the third fixed bracket 23, thereby achieving the effect of firmly installing the thermocouple 3.

[0027] The decoking transmission sleeve 4 is movably installed in the two through holes to simultaneously penetrate the furnace body 1 and one side of the first fixed bracket 21; the decoking head 5 is arranged on the end of the decoking transmission sleeve 4 extending into the interior of the furnace body 1, and the decoking head 5 and the decoking transmission sleeve 4 are simultaneously sleeved on the outside of the thermocouple 3; the driving mechanism is installed in the fixed bracket 2 to simultaneously drive the decoking transmission sleeve 4 to rotate and move, so that the thermocouple 3 can, while measuring the temperature normally, allow the decoking transmission sleeve 4 to drive the decoking head 5 to automatically remove the coke on the thermocouple 3 and the coke blocks on the inner side of the surrounding furnace, so as to effectively solve the problems of coking, bending and burning of the thermocouple 3, thereby reducing the temperature measurement failure rate of the thermocouple 3, reducing the maintenance cost and workload, and extending the service life of the thermocouple 3.

[0028] Better, refer to Figure 2 and Figure 3 In the present embodiment, a threaded connection is adopted between the decoking head 5 and the decoking transmission sleeve 4. Through the threaded connection structure, not only can the decoking head 5 be firmly installed on one end of the decoking transmission sleeve 4, but also the decoking head 5 can be twisted out from the decoking transmission sleeve 4, so that the decoking head 5 can be disassembled easily.

[0029] At the same time, the end of the decoking head 5 facing away from the decoking transmission sleeve 4 has a serrated structure. The decoking head 5 with a serrated structure is more conducive to decoking the thermocouple 3, so that not only the decoking head 5 and the decoking transmission sleeve 4 can further remove the dust and coke on the thermocouple 3, but also the coke blocks on the inner side of the furnace body 1 around the thermocouple 3, thereby effectively preventing the measuring end of the thermocouple 3 from being covered by the coke blocks in the furnace body 1.

[0030] Secondly, specifically, refer to Figure 1 and Figure 2 In this embodiment, the driving mechanism includes a moving platform 6, a moving assembly, a fixed connection bracket 7 and a rotating assembly. The moving platform 6 is movably arranged inside the fixed frame 2, and a moving hole is also opened in the middle of the moving platform 6. The moving hole corresponds to the through hole, and the end of the decoking transmission sleeve 4 away from the decoking head 5 passes through the moving platform 6 along the moving hole, and a bearing 61 is installed in the hole wall of the moving hole. The bearing 61 cooperates with the decoking transmission sleeve 4, so that the decoking transmission sleeve 4 can rotate in the moving hole of the moving platform 6 through the bearing 61.

[0031] The moving assembly is arranged between the fixed frame 2 and the moving platform 6 to drive the moving platform 6 to perform reciprocating axial motion and always maintain linear motion, so that the moving platform 6 drives the decoking transmission sleeve 4 and the decoking head 5 to achieve axial motion. The fixed connection bracket 7 is fixedly installed on the side of the moving platform 6 away from the first fixed bracket 21; the rotating assembly is arranged between the fixed connection bracket 7 and the decoking transmission sleeve 4 to drive the decoking transmission sleeve 4 and the decoking head 5 to achieve circumferential motion.

[0032] More specifically, refer to Figure 1 and Figure 2 In this embodiment, the rotating assembly includes a micro motor 71, a driving wheel 72, a driven wheel 41 and a belt 8. The micro motor 71 is fixedly mounted on the side of the fixed connection bracket 7 away from the mobile platform 6; the driving wheel 72 is fixedly mounted on the output end of the micro motor 71, and the driving wheel 72 is located in the fixed connection bracket 7; the driven wheel 41 is mounted on the outer side wall of the end of the decoking transmission sleeve 4 away from the decoking head 5; and the belt 8 is wound between the driving wheel 72 and the driven wheel 41 at the same time.

[0033] When the micro motor 71 on the fixed connecting bracket 7 is started, the output end of the micro motor 71 drives the driving wheel 72 to rotate, and the driving wheel 72 drives the driven wheel 41 to rotate through the belt 8, so that the driven wheel 41 drives the decoking head 5 on the decoking transmission sleeve 4 to always be in a rotating state, thereby preventing the decoking head 5 from adhering to the inner side of the furnace body 1 and effectively avoiding the decoking head 5 from getting stuck.

[0034] At the same time, refer to Figure 1 and Figure 2 In this embodiment, the moving assembly includes an electric push rod 9, a moving sleeve 62 and a guide rod 211. The electric push rod 9 is fixedly mounted on the side of the third fixed bracket 23 facing the first fixed bracket 21, and the pushing end of the electric push rod 9 is fixedly connected to the side of the moving platform 6 facing the third fixed bracket 23. When the electric push rod 9 is started, the pushing end of the electric push rod 9 drives the moving platform 6 to perform telescopic movement, so that the moving platform 6 drives the decoking transmission sleeve 4 to perform telescopic movement, thereby controlling the decoking transmission sleeve 4 to perform periodic forward and backward movement along the thermocouple 3, thereby effectively avoiding the problem of the thermocouple 3 being burned and bent.

[0035] Two movable sleeves 62 are provided, and the two movable sleeves 62 are symmetrically installed on the movable platform 6; two guide rods 211 are provided, and one end of the two guide rods 211 is symmetrically installed on the side of the first fixed bracket 21 away from the furnace body 1, and the two guide rods 211 respectively cooperate with the two movable sleeves 62, so that the movable sleeve 62 is sleeved on the guide rods 211.

[0036] By setting up a structure in which the movable sleeve 62 and the guide rod 211 cooperate with each other, not only can the movable platform 6 be effectively guided and limited, so that the movable platform 6 can move stably; but also the force distribution can be effectively balanced, and the fixed support can be better played, which is beneficial to maintain the stable operation of the thermocouple 3 and the decoking device.

[0037] Preferably, when the coke clearing head 5 moves forward to the measuring top of the thermocouple 3, the coke on the thermocouple 3 can be removed by the friction between the coke clearing head 5 and the thermocouple 3. When the coke clearing head 5 retreats to the inner side of the furnace body 1, the coke clearing transmission sleeve 4 shrinks to the outside of the furnace of the furnace body 1, so that the coke clearing transmission sleeve 4 can be prevented from being always in a high temperature environment, thereby extending its service life.

[0038] In addition, in this embodiment, a control system is also installed outside the furnace body 1, and the control system is electrically connected to the micro motor 71 and the electric push rod 9, respectively, to control the micro motor 71 and the electric push rod 9. Specifically, the control system can adopt a DCS or PLC system, so that the rotation of the micro motor 71 and the telescopic action of the electric push rod 9 are controlled by program instructions, thereby controlling the circumferential rotation and axial forward and backward movement of the defocusing head 5, thereby realizing the automatic defocusing function.

[0039] The implementation principle of a thermocouple automatic defocusing system in the embodiment of the present application is:

[0040] When the thermocouple 3 is coked, the micro motor 71 and the electric push rod 9 are started. When the micro motor 71 is started, it drives the driving wheel 72 to rotate, and the driving wheel 72 drives the driven wheel 41 to rotate through the belt 8. When the driven wheel 41 rotates, it drives the decoking transmission sleeve 4 and the decoking head 5 to rotate. When the electric push rod 9 is started and extended, it drives the mobile platform 6 to move forward, so as to drive the decoking transmission sleeve 4 and the decoking head 5 to move forward.

[0041] When the micro motor 71 and the electric push rod 9 are started at the same time, the defocusing head 5 can be driven to rotate and move forward, and one defocusing is completed when the defocusing head 5 moves to the measuring end of the thermocouple 3. In the defocusing process, the friction between the relative movement of the defocusing head 5 and the thermocouple 3 is mainly used to remove the coke on the thermocouple 3.

[0042] After the decoking is completed, the electric push rod 9 automatically retracts, driving the movable platform 6 to retreat, thereby driving the decoking transmission sleeve 4 and the decoking head 5 to move backward until the right end of the decoking head 5 is close to the inner side of the furnace body 1. At this time, the decoking transmission sleeve 4 can be completely retracted to the outside of the furnace chamber of the furnace body 1, thereby completing the decoking process of the thermocouple 3.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A thermocouple automatic defocusing system, characterized in that: The invention comprises a fixed frame (2) arranged on the outside of a furnace body (1), a thermocouple (3) extending into the interior of the furnace body (1) being arranged on one side of the fixed frame (2), a coke clearing transmission sleeve (4) being movably arranged on the furnace body (1), a coke clearing head (5) being arranged at one end of the coke clearing transmission sleeve (4) extending into the interior of the furnace body (1), the coke clearing transmission sleeve (4) and the coke clearing head (5) being simultaneously sleeved on the outside of the thermocouple (3), and a driving mechanism for driving the coke clearing transmission sleeve (4) to move is also arranged in the fixed frame (2).

2. A thermocouple automatic defocusing system according to claim 1, characterized in that: The driving mechanism comprises a movable platform (6) arranged on the outer side of one end of the decoking transmission sleeve (4) away from the decoking head (5); the movable platform (6) and the decoking transmission sleeve (4) are connected via a bearing (61); a movable component is arranged between the fixed frame (2) and the movable platform (6); a fixed connection bracket (7) is arranged on the movable platform (6); and a rotating component is arranged between the fixed connection bracket (7) and the decoking transmission sleeve (4).

3. A thermocouple automatic defocusing system according to claim 2, characterized in that: The rotating assembly comprises a micro motor (71) arranged on the fixed connection bracket (7), the output end of the micro motor (71) is connected to a driving wheel (72), a driven wheel (41) is arranged on the outer side of the decoking transmission sleeve (4), and a belt (8) is arranged between the driven wheel (41) and the driving wheel (72).

4. A thermocouple automatic defocusing system according to claim 3, characterized in that: The moving assembly comprises an electric push rod (9) arranged in the fixed frame (2), the pushing end of the electric push rod (9) is connected to one side of the moving platform (6), a moving sleeve (62) is symmetrically arranged on the moving platform (6), and a guide rod (211) matching the moving sleeve (62) is symmetrically arranged on one side of the fixed frame (2).

5. The thermocouple automatic defocusing system according to claim 1, characterized in that: The decoking head (5) and the decoking transmission sleeve (4) are connected by threads.

6. A thermocouple automatic defocusing system according to claim 5, characterized in that: The end of the decoking head (5) facing away from the decoking transmission sleeve (4) has a sawtooth structure.

7. The thermocouple automatic defocusing system according to claim 1, characterized in that: The fixing frame (2) comprises a first fixing frame (21), a second fixing frame (22), a third fixing frame (23) and a fourth fixing frame (24); the first fixing frame (21) is arranged on the outer side of the furnace body (1); one side of the second fixing frame (22) and one side of the fourth fixing frame (24) are simultaneously arranged on one side of the first fixing frame (21); and two ends of the third fixing frame (23) are respectively connected to one side of the second fixing frame (22) and one side of the fourth fixing frame (24) through fixing components.

8. The thermocouple automatic defocusing system according to claim 7, characterized in that: The fixing assembly comprises fixing plates (231) arranged at both ends of the third fixing bracket (23), the fixing plates (231) are symmetrically provided with fixing holes, and threaded holes are symmetrically provided on one side of the second fixing bracket (22) and the fourth fixing bracket (24), the threaded holes corresponding to the fixing holes, and fixing screws (232) matching the fixing holes are also symmetrically provided on the fixing plates (231), and the fixing screws (232) are threadedly connected to the threaded holes.

9. The thermocouple automatic defocusing system according to claim 7, characterized in that: One end of the thermocouple (3) extending outside the furnace body (1) is provided with a flange (31), and the flange (31) is connected to the third fixing bracket (23) by bolts.

10. The thermocouple automatic defocusing system according to claim 4, characterized in that: A control system is also provided outside the furnace body (1), and the control system is electrically connected to the micro motor (71) and the electric push rod (9) respectively, so as to control the micro motor (71) and the electric push rod (9).

Images