A long-life in-furnace flame monitoring system

Abstract

This application discloses a long-life furnace flame monitoring system, including a support frame, a propulsion device, a camera, an airflow purging module, and an air compressor. The support frame is located on the outside of the furnace wall, the propulsion device is located on one side of the support frame, and the camera is mounted on the propulsion end of the propulsion device, with a lens assembly at the end of the camera. The output end of the airflow purging module is connected to the lens assembly, and the output end of the air compressor is connected to a six-stage double-link high-precision filter tank via a connecting device. The output end of the filter tank is connected to the input end of the airflow purging module via an air supply duct assembly, and an automatic drainage device is also provided at the bottom of the filter tank. By incorporating a six-stage double-link high-precision filter tank, this application achieves effective filtration of the cooling air, with excellent and long-lasting filtration. This allows the airflow purging module to continuously cool and purge the lens assembly with the cooling air, ensuring that the lens assembly remains clear and free of oil and gas volatiles, thereby guaranteeing a clear monitoring image.

Description

Technical Field

[0001] This application relates to the technical field of incinerator flame monitoring, and in particular to an incinerator flame monitoring system with a long service life. Background Technology

[0002] Currently, the combustion status inside the waste incinerator needs to be monitored by transmitting images from the in-furnace flame monitoring system to the central control room. The core of the in-furnace flame monitoring system is that the camera probe can be directly extended into the furnace and has an automatic furnace entry and exit function. It can accurately reflect the combustion status of the flame inside the boiler furnace, monitor the overall fuel combustion status inside the furnace, and allow operators to observe the combustion status, ignition, and extinguishing status inside the furnace from the central control room. This enables timely detection of various dangerous situations, thereby ensuring the safe operation of the boiler.

[0003] Due to the extremely high temperature environment inside the furnace, the camera probe and its accompanying propeller must be continuously purged and cooled during the furnace entry process. However, the existing furnace flame monitoring system's airflow purging module is connected to an air compressor, using compressed air directly generated by the compressor for purging. This compressed air carries residual volatiles such as oil and fumes from the air compressor. Continuous purging of the camera probe can cause the monitoring image to become unclear after oil and fumes enter the lens assembly, and it can also easily cause short circuits and damage to the lens assembly. Purchasing a new complete set of high-temperature curing lenses is expensive and only provides a temporary solution.

[0004] The existing technology involves adding a small filter between the air compressor and the airflow purging module. However, the filtration effect is poor, the filter fails quickly, and the condensation caused by compressed air entering the filter leads to condensate soaking through the entire small filter, thus affecting the filtration effect. Utility Model Content

[0005] The purpose of this application is to provide a long-life furnace flame monitoring system to solve the problems of existing technology which involves adding a small filter between the air compressor and the airflow purging module. However, the filter has poor filtration effect, rapid filter failure, and condensation caused by compressed air entering the filter, resulting in condensate water seeping through the entire small filter and affecting the filtration effect.

[0006] The long-service-life in-furnace flame monitoring system provided in this application adopts the following technical solution:

[0007] A long-service-life furnace flame monitoring system includes a support frame, a propulsion device, a camera, an airflow purging module, and an air compressor;

[0008] The support frame is disposed on the outside of the furnace wall, the propulsion device is disposed on one side of the support frame, the camera is disposed on the propulsion end of the propulsion device, the end of the camera is provided with a lens group, and a guide component that cooperates with the lens group is disposed between the support frame and the furnace wall;

[0009] The output end of the airflow purging module is connected to the lens assembly. The output end of the air compressor is connected to a six-stage double high-precision filter tank via a connecting device. The output end of the six-stage double high-precision filter tank is connected to the input end of the airflow purging module via an air supply pipe assembly. An automatic drainage device is also provided at the bottom of the six-stage double high-precision filter tank.

[0010] Furthermore, the automatic drainage device includes automatic drainers symmetrically arranged at the bottom of the six-stage double high-precision filter tank, with a connecting pipe between the two automatic drainers. A storage water tank is provided at the bottom of the six-stage double high-precision filter tank, and the storage water tank is connected to the connecting pipe.

[0011] Furthermore, the connecting device includes a cooling gas inlet pipe connected to the cooling gas inlet of the six-stage double high-precision filter tank, a first connecting flange on the cooling gas inlet pipe, a cooling gas outlet pipe connected to the output end of the air compressor, a second connecting flange on the cooling gas outlet pipe, and the first connecting flange and the second connecting flange connected together by multiple fasteners. The outer side of the six-stage double high-precision filter tank is also provided with a support mechanism that cooperates with the cooling gas outlet pipe.

[0012] Furthermore, the supporting mechanism includes a supporting rod disposed on the outside of the six-stage double high-precision filter tank, a supporting slide is slidably disposed on the supporting rod, a sliding locking assembly is disposed on the supporting slide to abut against the supporting rod, a fixed supporting seat is disposed on the supporting slide, and an adjusting lifting seat is disposed on the fixed supporting seat through an adjusting fastening assembly, and the fixed supporting seat and the adjusting lifting seat cooperate with the cooling gas outlet pipe.

[0013] Furthermore, the guide assembly includes a sleeve disposed on the support frame, one end of the sleeve being connected to a guide tube, the guide tube penetrating the furnace wall to extend into the furnace, and the sleeve and the guide tube simultaneously cooperating with the lens assembly.

[0014] Furthermore, the airflow purging module is a cooling duct with multiple air outlets. These multiple air outlets are connected to the camera, the lens assembly, and the sleeve via delivery ducts. A cooling air connector and a differential pressure switch are also sequentially provided at one end of the cooling duct, and the cooling air connector is connected to the air supply duct assembly.

[0015] Furthermore, the cooling gas outlet pipe, the air supply pipe assembly, and the cooling air duct are all fitted with a heat insulation layer.

[0016] Furthermore, it also includes a PLC controller and a control cabinet, wherein the PLC controller is connected to the control cabinet, the air compressor and the camera, and the control cabinet is connected to the propulsion device.

[0017] Compared with the prior art, the beneficial effects of this application are as follows:

[0018] This solution incorporates a six-stage dual high-precision filter canister between the air compressor and the airflow purging module, effectively filtering the cooling air from the air compressor. The filtration effect is excellent and long-lasting, allowing the airflow purging module to continuously cool and purge the camera lens assembly with the cooling air, ensuring that the lens assembly is clear and free of oil vapors, thus guaranteeing a clear monitoring image.

[0019] Meanwhile, by setting up an automatic drainage device, the entire system is equipped with automatic drainage and venting functions, thereby preventing condensate from soaking through the entire filter, greatly improving the filtration effect, extending the service life of the high-temperature special monitoring camera and filter tank, and reducing maintenance costs.

[0020] In addition, by setting up a connecting device, not only is the tight connection between the air compressor and the six-stage double high-precision filter tank improved, but the pipeline between the air compressor and the six-stage double high-precision filter tank is also effectively supported, thereby preventing the pipeline from bending and causing air leakage between the pipes, thus ensuring the sealing connection effect between the pipelines. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the long-service-life in-furnace flame monitoring system according to an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the connection device according to an embodiment of this application.

[0023] Figure 3 yes Figure 2 An explosion diagram.

[0024] Figure 4 This is a schematic diagram of the structure of the automatic drainage device according to an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Support frame; 11. Propulsion device; 12. Sleeve; 13. Conduit; 2. Camera; 21. Lens assembly; 3. Air compressor; 31. Cooling air outlet pipe; 32. Connecting flange two; 4. Furnace wall; 5. Cooling air duct; 51. Air outlet; 52. Conveying air duct; 53. Differential pressure switch; 54. Cooling air connector; 6. PLC controller; 61. Control cabinet; 7. Six-stage double high-precision filter tank; 71. Air supply duct assembly; 72. Cooling air inlet pipe; 721, connecting flange one; 73, support rod; 731, sliding groove; 74, support slide; 741, locking threaded rod; 742, plum blossom torsion block; 743, locking block; 75, fixed support seat; 751, fastening plate; 76, adjusting lifting seat; 761, adjusting plate; 77, screw; 78, torsion nut; 79, automatic drainer; 791, connecting pipe; 792, water storage tank; 8, fasteners. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses a long-service-life furnace flame monitoring system, referring to... Figure 1 In this embodiment, the furnace flame monitoring system includes a support frame 1, a propulsion device 11, a camera 2, an airflow purging module, and an air compressor 3. The support frame 1 is installed on the outer side of the furnace wall 4; the propulsion device 11 is installed on one side of the support frame 1; the camera 2 is installed on the propulsion end of the propulsion device 11, and a lens assembly 21 is installed at the end of the camera 2. When the propulsion device 11 is activated, the propulsion end drives the camera 2 to move, thereby allowing the lens assembly 21 to extend into the furnace for monitoring. Specifically, the propulsion device 11 is a propeller, which is existing technology and will not be described in detail here.

[0029] In this embodiment, a guide assembly is also provided between the support frame 1 and the furnace wall 4, which cooperates with the lens assembly 21. Specifically, the guide assembly includes a sleeve 12 and a guide tube 13. The sleeve 12 is mounted on the support frame 1; one end of the guide tube 13 is connected to one side of the sleeve 12, and the other end of the guide tube 13 penetrates the furnace wall 4 to extend into the furnace. The guide tube 13 is made of a high-temperature resistant material and has good high-temperature resistance.

[0030] In addition, the sleeve 12 and the conduit 13 cooperate with the lens assembly 21, so that the lens assembly 21 is inserted into the conduit 13 along the sleeve 12, thereby enabling the conduit 13 to protect the lens assembly 21 and enabling the lens assembly 21 to perform monitoring operations normally.

[0031] In addition, refer to Figure 1In this embodiment, the airflow purging module is a cooling duct 5, which is located outside the furnace. The cooling duct 5 is equipped with multiple air outlets 51, which are connected to the camera 2, the lens group 21, and the sleeve 12 via conveying ducts 52. This allows cooling air to be blown onto the camera 2, the lens group 21, and the sleeve 12 along the conveying ducts 52. This not only cools and protects the equipment but also continuously purifies the lens group 21, ensuring that the lens group 21 is clear and free of oil vapors, thus guaranteeing a clear monitoring image.

[0032] Meanwhile, a differential pressure switch 53 is installed on the cooling air duct 5 near the air inlet port; and this solution also includes a PLC controller 6 and a control cabinet 61 installed on the outside of the furnace. The PLC controller 6 is electrically connected to the control cabinet 61, the camera 2 and the differential pressure switch 53, and the control cabinet 61 is electrically connected to the propulsion device 11, so that the PLC controller 6 and the control cabinet 61 can achieve the effect of automated control of the camera 2, the propulsion device 11 and the differential pressure switch 53.

[0033] Specifically, the differential pressure switch 53 is used to measure the pressure difference in the cooling air entering the cooling duct 5. When the pressure difference reaches a preset value, the differential pressure switch 53 will trigger a signal or action to feed the signal back to the PLC controller 6, which will then perform unified control and monitoring to ensure the safety of the entire system.

[0034] Secondly, the air compressor 3 is located outside the furnace. The air compressor 3 is electrically connected to the PLC controller 6, so that the PLC controller 6 controls the air compressor 3 to start and blow out compressed air cooling gas. The output end of the air compressor 3 is connected to a six-stage double high-precision filter tank 7 through a connecting device. The six-stage double high-precision filter tank 7 is located between the air compressor 3 and the cooling air duct 5, and a cooling air connector 54 is installed at the air inlet of the cooling air duct 5. The output end of the six-stage double high-precision filter tank 7 is tightly connected to the cooling air connector 54 on the cooling air duct 5 through the air supply duct assembly 71.

[0035] When the air compressor 3 blows out compressed air cooling gas, the cooling gas is blown into the six-stage double high-precision filter tank 7 through the connecting device. The six-stage double high-precision filter tank 7 can effectively filter the cooling gas, and its filtration effect is excellent and long-lasting.

[0036] Specifically, refer to Figure 2 and Figure 3In this embodiment, the connecting device includes a cooling gas inlet pipe 72, a first connecting flange 721, a cooling gas outlet pipe 31, a second connecting flange 32, fasteners 8, and a supporting mechanism. One end of the cooling gas inlet pipe 72 is connected to the cooling gas inlet of the six-stage double-unit high-precision filter tank 7, and the cooling gas inlet pipe 72 is a short steel pipe. The first connecting flange 721 is installed at the end of the cooling gas inlet pipe 72 furthest from the six-stage double-unit high-precision filter tank 7. One end of the cooling gas outlet pipe 31 is connected to the output end of the air compressor 3, and the cooling gas outlet pipe 31 is a long flexible hose, allowing the six-stage double-unit high-precision filter tank 7 to be placed in different locations and to be connected to the air compressor 3 via the long flexible hose. The end of the cooling gas outlet pipe 31 furthest from the air compressor 3 is connected to a short steel pipe, and the second connecting flange 32 is installed on the short steel pipe end of the cooling gas outlet pipe 31.

[0037] The connecting flange 721 and the connecting flange 32 are fixedly connected to each other by a plurality of fasteners 8. These fasteners 8 are all combinations of bolts and nuts. These combinations facilitate the fastening and installation of the connecting flange 721 and the connecting flange 32 together.

[0038] Preferably, in this embodiment, the cooling gas outlet pipe 31, the air supply pipe group 71 and the cooling air pipe 5 can also be covered with a heat insulation cotton layer, which can have a good heat insulation effect, thereby ensuring that the cooling gas maintains a certain temperature, and thus facilitating the subsequent effective cooling of the lens group 21.

[0039] Meanwhile, the support mechanism is set on the outside of the six-stage double high-precision filter tank 7. The support mechanism cooperates with the cooling gas outlet pipe 31 to effectively support the cooling gas outlet pipe 31, thereby making the connection between the cooling gas outlet pipe 31 and the cooling gas inlet pipe 72 tighter.

[0040] More specifically, refer to Figure 2 and Figure 3 In this embodiment, the supporting mechanism includes a supporting rod 73, a supporting slide 74, a sliding locking assembly, a fixed supporting seat 75, an adjusting lifting seat 76, and an adjusting fastening assembly. One end of the supporting rod 73 is installed on the outside of the six-stage double-link high-precision filter tank 7, and the supporting rod 73 is located below the cooling gas inlet pipe 72. Sliding grooves 731 are provided on both sides of the supporting rod 73, and the two inner sides of the supporting slide 74 respectively cooperate with the two sliding grooves 731, thereby allowing the supporting slide 74 to slide on the supporting rod 73.

[0041] Meanwhile, the sliding locking assembly is disposed on the supporting slide 74, and the sliding locking assembly abuts against the top of the supporting rod 73 to securely limit the supporting slide 74 to the supporting rod 73. Specifically, in this embodiment, the sliding locking assembly includes a locking threaded rod 741 threadedly connected to the supporting slide 74, a swivel-shaped torsion block 742 installed at the top of the locking threaded rod 741, a locking block 743 installed at the bottom of the locking threaded rod 741, and a cavity is formed between the inner side of the supporting slide 74 and the top side of the supporting rod 73, and the locking block 743 is located in the cavity.

[0042] When it is necessary to limit the support slide 74, the plum blossom torsion block 742 is rotated, causing the locking threaded rod 741 to drive the locking block 743 to press against the top side of the support rod 73, thereby securing the support slide 74 to the support rod 73. At the same time, when the locking block 743 moves away from the top side of the support rod 73, the position of the support slide 74 can be effectively adjusted by moving the support slide 74 back and forth on the support rod 73.

[0043] Furthermore, in this embodiment, the fixed support 75 is mounted on the top of the support slide 74 via a support rod, and the adjusting lifting seat 76 is mounted on the fixed support 75 via an adjusting fastening assembly. Both the adjusting lifting seat 76 and the fixed support 75 have an arc-shaped structure. The adjusting lifting seat 76 covers the fixed support 75 to form a channel for accommodating the cooling gas outlet pipe 31. This allows the fixed support 75 and the adjusting lifting seat 76 to cooperate with the cooling gas outlet pipe 31, thereby effectively supporting the cooling gas outlet pipe 31 and preventing the cooling gas outlet pipe 31 from bending and sagging, which could lead to air leakage between the pipes.

[0044] Specifically, refer to Figure 3 In this embodiment, the adjusting fastening assembly includes a fastening plate 751, an adjusting plate 761, a screw 77, and a torsion nut 78. Two fastening plates 751 are provided, each mounted on one side of the fixed support 75. Two adjusting plates 761 are provided, each mounted on one side of the adjusting lifting seat 76. When the adjusting lifting seat 76 is closed over the top of the fixed support 75, the adjusting plate 761 corresponds to and fits snugly against the fastening plate 751.

[0045] Meanwhile, several screws 77 are provided, and these screws 77 are divided into two groups. One end of each group of screws 77 is installed at the bottom of two adjusting plates 761. Several screw holes 77 are provided on each of the two fastening plates 751 to cooperate with the screws 77, so that the screws 77 pass through the two fastening plates 751 along the screw holes. Several torsion nuts 78 are provided, and the number of torsion nuts 78 is the same as the number of screws 77. The torsion nuts 78 are threadedly connected to the screws 77.

[0046] By screwing the torsion nut 78 onto the screw 77, the adjusting lifting seat 76 is securely fitted onto the top of the fixed support seat 75. When the torsion nut 78 is loosened, the height of the adjusting lifting seat 76 can be adjusted, thereby increasing or decreasing the size of the channel formed between the adjusting lifting seat 76 and the fixed support seat 75, thus adapting to different specifications of cooling air outlet pipes 31.

[0047] Secondly, a better reference Figure 1 and Figure 4 In this embodiment, an automatic drainage device is also provided at the bottom of the six-stage dual high-precision filter tank 7. Specifically, the six-stage dual high-precision filter tank 7 includes two interconnected filter tanks. The automatic drainage device is located between the bottoms of the two filter tanks so that the whole device has an automatic drainage and venting function, thereby preventing condensate from soaking through the entire filter, greatly improving the filtration effect, and thus extending the service life of the high-temperature special monitoring camera and the filter tank, and reducing maintenance costs.

[0048] More specifically, in this embodiment, the automatic drainage device includes an automatic drainer 79, a connecting pipe 791, and a storage tank 792. Two automatic drainers 79 are provided, each connected to the bottom of one of the two filter tanks. The connecting pipe 791 has three drainage pipes, with each end of the connecting pipe 791 connected to the outlet of one of the two automatic drainers 79. The storage tank 792 is installed between the bottoms of the two filter tanks, and the remaining end of the connecting pipe 791 is connected to the top of the storage tank 792.

[0049] When the two automatic drainers 79 are activated simultaneously, the condensate in the two filter tanks is collected from the two automatic drainers 79 and discharged into the connecting pipe 791. Then, the condensate is discharged into the storage tank 792 along the connecting pipe 791, thus achieving effective collection of the condensate for subsequent unified treatment.

[0050] Therefore, by adding a six-stage dual high-precision filter tank 7 between the air compressor 3 and the airflow purging module, the solution of this application can effectively filter the cooling air of the air compressor 3. The filtration effect is excellent and long-lasting, so that the airflow purging module can continuously cool and purge the lens group 21 of the camera 2 with the cooling air, so that the lens group 21 is clear and free of oil vapor volatiles, thereby ensuring the clear effect of the monitoring picture.

[0051] Meanwhile, by setting up an automatic drainage device, the entire system is equipped with automatic drainage and venting functions, thereby preventing condensate from soaking through the entire filter, greatly improving the filtration effect, extending the service life of the high-temperature special monitoring camera and filter tank, and reducing maintenance costs.

[0052] In addition, by setting up a connecting device, not only is the tight connection between the air compressor 3 and the six-stage double high-precision filter tank 7 improved, but the pipeline between the air compressor 3 and the six-stage double high-precision filter tank 7 is also effectively supported, thereby preventing the pipeline from bending and causing air leakage between the pipes, thus ensuring the sealing connection effect between the pipelines.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A long-service-life furnace flame monitoring system, characterized in that: Includes a support frame (1), a propulsion device (11), a camera (2), an airflow purging module, and an air compressor (3); The support frame (1) is located on the outside of the furnace wall (4), the propulsion device (11) is located on one side of the support frame (1), the camera (2) is located on the propulsion end of the propulsion device (11), the end of the camera (2) is provided with a lens group (21), and a guide component that cooperates with the lens group (21) is provided between the support frame (1) and the furnace wall (4). The output end of the airflow purging module is connected to the lens group (21). The output end of the air compressor (3) is connected to a six-stage double high-precision filter tank (7) through a connecting device. The output end of the six-stage double high-precision filter tank (7) is connected to the input end of the airflow purging module through an air supply pipe group (71). An automatic drainage device is also provided at the bottom of the six-stage double high-precision filter tank (7).

2. The long-service-life furnace flame monitoring system according to claim 1, characterized in that: The automatic drainage device includes automatic drainers (79) symmetrically arranged at the bottom of the six-stage double high-precision filter tank (7), and a connecting pipe (791) is provided between the two automatic drainers (79). A storage water tank (792) is provided at the bottom of the six-stage double high-precision filter tank (7), and the storage water tank (792) is connected to the connecting pipe (791).

3. The long-service-life furnace flame monitoring system according to claim 1, characterized in that: The connecting device includes a cooling gas inlet pipe (72) connected to the cooling gas inlet of the six-stage double high-precision filter tank (7). A connecting flange (721) is provided on the cooling gas inlet pipe (72). A cooling gas outlet pipe (31) is connected to the output end of the air compressor (3). A connecting flange (32) is provided on the cooling gas outlet pipe (31). The connecting flange (721) and the connecting flange (32) are connected by a plurality of fasteners (8). A support mechanism that cooperates with the cooling gas outlet pipe (31) is also provided on the outside of the six-stage double high-precision filter tank (7).

4. The long-service-life furnace flame monitoring system according to claim 3, characterized in that: The supporting mechanism includes a supporting rod (73) disposed on the outside of the six-stage double high-precision filter tank (7). A supporting slide (74) is slidably disposed on the supporting rod (73). A sliding locking assembly that abuts against the supporting rod (73) is disposed on the supporting slide (74). A fixed supporting seat (75) is disposed on the supporting slide (74). An adjusting lifting seat (76) is disposed on the fixed supporting seat (75) through an adjusting fastening assembly. The fixed supporting seat (75) and the adjusting lifting seat (76) cooperate with the cooling gas outlet pipe (31).

5. The long-service-life furnace flame monitoring system according to claim 3, characterized in that: The guiding assembly includes a sleeve (12) disposed on the support frame (1), one end of which is connected to a conduit (13), the conduit (13) passing through the furnace wall (4) to extend into the furnace, and the sleeve (12) and the conduit (13) cooperating with the lens assembly (21).

6. The long-service-life furnace flame monitoring system according to claim 5, characterized in that: The airflow purging module is a cooling duct (5), which is provided with multiple air outlets (51). The multiple air outlets (51) are respectively connected to the camera (2), the lens group (21) and the sleeve (12) through the conveying duct (52). A cooling air connector (54) and a differential pressure switch (53) are also provided at one end of the cooling duct (5). The cooling air connector (54) is connected to the air supply duct group (71).

7. The long-service-life furnace flame monitoring system according to claim 6, characterized in that: The cooling gas outlet pipe (31), the air supply pipe group (71), and the cooling air duct (5) are all fitted with a heat insulation layer.

8. The long-service-life furnace flame monitoring system according to claim 1, characterized in that: It also includes a PLC controller (6) and a control cabinet (61), wherein the PLC controller (6) is connected to the control cabinet (61), the air compressor (3) and the camera (2), and the control cabinet (61) is connected to the propulsion device (11).

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