Self-checking device for maritime flame detector

Abstract

The invention relates to the technical field of flame detectors, in particular to a self-inspection device for an offshore flame detector, which comprises an inspection bench and a flame detector body, a bracket is fixedly mounted on the inspection bench, and a flaw detection head and a signal receiver which correspond to each other and are used for detecting the flame detector body are respectively arranged on the bracket and the inspection bench; sliding blocks which are symmetrically arranged and used for adjusting the height of the flame detector body are arranged in the support in a sliding and sleeved mode. According to the flame detector, the two moving plates get close to each other under the driving of the motor I, and the flame detector body is relatively convenient during detection by sleeving the lens of the flame detector body with the rubber sleeve; the output end of the air cylinder stretches out and draws back to adjust the distance between the flame detector body and the flaw detection head, the rotating rod is driven by the second motor to rotate, and when the flame detector body rotates, the flaw detection head can comprehensively detect the flame detector body.

Description

Technical Field

[0001] The present invention relates to the technical field of flame detectors, and particularly to a self-checking device for a marine flame detector. Background Art

[0002] When offshore natural gas is exploited, a flame detector is used. The flame detector detects that when a substance burns, while generating smoke and releasing heat, it also generates visible or invisible light radiation that does not exist in the atmosphere.

[0003] When the flame detector detects offshore natural gas, the flame detector is installed on an offshore platform. Before installation, the flame detector has experienced transportation and handling, which requires the detection of precision components inside the flame detector. When the flame detector is detected, it is placed on an inspection table, and the signal emitted by the flaw detector head can detect the flame detector. When one side of the flame detector is detected, the operator manually flips it to achieve a comprehensive detection of the flame detector. However, this detection method has the following deficiencies: after the flame detector is placed on the inspection table, the contact surface between the flame detector and the inspection table will affect its detection speed, and the weight of the flame detector makes it inconvenient for the operator to flip it, making it extremely easy for the flame detector to fall off and collide during flipping. After the flame detector is impacted, not only will cracks and deformations appear on its outer surface, but also the precision components inside the flame detector will be damaged, thereby affecting the detection efficiency of the flame detector. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that it is inconvenient to inspect a flame detector in the prior art, and to propose a self-checking device for a marine flame detector.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A self-checking device for a marine flame detector, including an inspection table and a flame detector body. A bracket is fixedly installed on the inspection table, and a flaw detector head and a signal receiver for detecting the flame detector body are respectively provided on the bracket and the inspection table in a corresponding manner. A slider is symmetrically and slidably sleeved in the bracket for adjusting the height of the flame detector body, and a frame is fixedly installed on the slider. A moving plate corresponding to the flame detector body is connected to the frame through a moving member, and a limiting structure for limiting the flame detector body is provided on the moving plate.

[0006] Preferably, the bracket is in a U-shaped structure, and a camera and a fill light for detecting the flame detector body in a cooperative manner are provided on the bracket. A rubber sleeve is sleeved on the lens of the flame detector body.

[0007] Preferably, guide rods which are symmetrically arranged and guide the slider are fixedly installed in the bracket, and a cylinder connected to the slider is fixedly installed in the bracket. The guide rods are vertically arranged at both sides of the flame detector body.

[0008] Preferably, the moving part comprises a motor 1 fixedly mounted on the frame, and a bidirectional screw is fixedly connected to the output end of the motor 1, two matching nuts are slidably sleeved on the bidirectional screw, and a connecting rod is connected between the nut and the moving plate.

[0009] Preferably, the bidirectional screw rod is horizontally arranged on both sides of the flame detector body, the two ends of the connecting rod are respectively connected to the nut and the pin shaft on one side of the movable plate, the movable plate and the connecting rod extend to one side outside the frame, and a long hole is provided on the frame to guide the connecting rod, and a limit rod extending to the slider is fixedly installed on the movable plate.

[0010] Preferably, the limiting structure includes a rotating rod rotatably installed in the movable plate, and a sleeve for clamping the flame detector body is fixedly installed on the rotating rod, the sleeve sliding sleeve is provided with four circumferentially distributed clamps for clamping the flame detector body, and a spring is welded between the clamp and the sleeve, and a rotating component for driving the flame detector body to rotate is provided on the movable plate.

[0011] Preferably, the rotating rod is arranged horizontally, the sleeve is an annular structure with one side open, and a guide groove for guiding the splint is provided on the sleeve.

[0012] Preferably, the clamping plate is an arc-shaped structure adapted to the flame detector body, and is provided with an inclined surface corresponding to the port of the flame detector body, and the spring is horizontally welded to a side position of the clamping plate extending into the guide groove.

[0013] Preferably, the rotating assembly includes a rack fixedly mounted on the sleeve, a second motor is fixedly mounted on the movable plate, and an output end of the second motor is fixedly connected to a rotating shaft transmission-connected to the rack.

[0014] Preferably, the rack is an annular structure, the rotating shaft is horizontally arranged below the movable plate, and a gear meshing with the rack is fixedly mounted on the rotating shaft.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention drives two moving plates to approach each other through the drive of motor 1. When the moving plates approach each other, they drive the clamping plates to move toward each other, so that the clamping plates can clamp the flame detector body from both sides, and by arranging a rubber sleeve on the lens of the flame detector body, the rubber sleeve can protect the lens of the flame detector body, making the flame detector body more convenient to detect. By detecting the parts in the flame detector body, the flame detector body can ensure its own operating degree during operation.

[0016] 2. The present invention can adjust the distance between the flame detector body and the flaw detection head by extending and retracting the output end of the cylinder, and can rotate the rotating rod by driving the second motor, and the rotating rod drives the sleeve, the clamping plate, and the flame detector body to rotate. The camera can detect the outer surface of the rotating flame detector body, and the flaw detection head can fully inspect the flame detector body through the rotation of the flame detector body.

[0017] In summary, the present invention drives the two movable plates to approach each other through the drive of motor one, the clamping plate can clamp the flame detector body from both sides, and by arranging a rubber sleeve on the lens of the flame detector body, the flame detector body is more convenient to detect, and by detecting the parts inside the flame detector body, the flame detector body can ensure its own operation degree during operation; the extension and retraction of the cylinder output end can adjust the distance between the flame detector body and the flaw detection head, and the driving of motor two can rotate the rotating rod, the camera can detect the outer surface of the rotating flame detector body, and the rotation of the flame detector body enables the flaw detection head to comprehensively inspect the flame detector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a self-test device for marine flame detectors proposed by the present invention; Figure 2 A cross-sectional view of a self-test device for a marine flame detector proposed by the present invention; Figure 3 A side sectional view of a self-test device for a marine flame detector proposed by the present invention; Figure 4 A cross-sectional view of a sleeve of a self-test device for a marine flame detector proposed by the present invention; Figure 5 A cross-sectional view of a moving plate of a self-testing device for a marine flame detector proposed by the present invention; Figure 6 A top cross-sectional view of a frame of a self-test device for marine flame detectors proposed by the present invention; Figure 7Schematic diagram of the splint of a self-checking device for an offshore flame detector proposed by the present invention.

[0019] In the figure: 1, inspection table; 2, flame detector body; 3, bracket; 4, flaw detector head; 5, signal receiver; 6, camera; 7, guide rod; 8, slider; 9, cylinder; 10, frame; 11, motor 1; 12, bidirectional lead screw; 13, nut; 14, moving plate; 15, connecting rod; 16, rotating rod; 17, sleeve; 18, guide groove; 19, splint; 20, rubber sleeve; 21, spring; 22, rack; 23, motor 2; 24, rotating shaft; 25, gear. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figure 1-Figure 7 , a self-checking device for an offshore flame detector, including an inspection table 1 and a flame detector body 2. After the flame detector body 2 is powered on, it can monitor the offshore natural gas. This technical solution is the prior art and will not be elaborated here too much.

[0022] A flaw detector head 4 and a signal receiver 5 that are correspondingly arranged on the inspection table 1 and the bracket 3 and are used to detect the flame detector body 2 are fixedly installed on the inspection table 1. After the flaw detector head 4 is powered on, it transmits the signal to the signal receiver 5. The signal receiver 5 can collect and compare the transmitted signal, and then detect the precision components inside the flame detector body 2. The bracket 3 is of a U-shaped structure, and a camera 6 and a fill light that cooperate with each other and are used to detect the flame detector body 2 are arranged on the bracket 3. After the fill light is powered on, it can illuminate the flame detector body 2. After the camera 6 is powered on, it can detect the outer surface of the flame detector body 2, and can select the flame detector body 2 with cracks and deformations caused by transportation and handling, further improving the service life of the flame detector body 2.

[0023] According to the attached Figure 1 As shown in the figure, a rubber sleeve 20 is sleeved on the lens of the flame detector body 2. By setting the rubber sleeve 20 extending to the lens on the flame detector body 2, the lens can be protected when the flame detector body 2 is limited, avoiding damage caused by excessive extrusion. Symmetrically arranged sliders 8 that slide inside the bracket 3 and are used to adjust the height of the flame detector body 2 are sleeved, and a frame 10 is fixedly installed on the slider 8.

[0024] A guide rod 7 is symmetrically arranged and guides the slider 8, and a cylinder 9 connected to the slider 8 is fixedly installed in the bracket 3. The guide rod 7 guides the slider 8 so that the slider 8 can smoothly pull the frame 10 when moving. After the cylinder 9 is energized, it can drive the slider 8 to rise and fall, thereby adjusting the distance between the flame detector body 2 and the camera 6, so that the flame detector body 2 is in a suspended state after moving up. The guide rod 7 is vertically arranged on both sides of the flame detector body 2, and a moving plate 14 corresponding to the flame detector body 2 is connected to the frame 10 through a moving part.

[0025] The moving part includes a motor 11 fixedly mounted on the frame 10, and a bidirectional screw rod 12 is fixedly connected to the output end of the motor 11. Two matching nuts 13 are slidably sleeved on the bidirectional screw rod 12, and a connecting rod 15 is connected between the nut 13 and the moving plate 14.

[0026] The bidirectional screw rod 12 is horizontally arranged at both sides of the flame detector body 2, and the two ends of the connecting rod 15 are respectively connected with the nut 13 and the pin shaft on one side of the movable plate 14. The movable plate 14 and the connecting rod 15 extend to one side outside the frame 10, and the frame 10 is provided with a long hole for guiding the connecting rod 15. The long hole guides the connecting rod 15, thereby limiting the moving direction of the nut 13. After the motor 11 is energized, it can drive the two movable plates 14 to approach each other. By adjusting the distance between the two clamping plates 19, the inspection bench 1 as a whole can limit the flame detector bodies 2 of different lengths. A limiting rod extending to the slider 8 is fixedly installed on the movable plate 14. According to the attached manual Figure 2 As shown, by arranging a limit rod on the moving plate 14 , the slider 8 can limit the moving direction of the moving plate 14 .

[0027] The movable plate 14 is provided with a limiting structure for limiting the position of the flame detector body 2 .

[0028] The limiting structure includes a rotating rod 16 rotatably installed in the movable plate 14, and a sleeve 17 for clamping the flame detector body 2 is fixedly installed on the rotating rod 16. The sleeve 17 is slidably sleeved with four circumferentially distributed clamping plates 19 for clamping the flame detector body 2.

[0029] The rotating rod 16 is arranged horizontally, and the sleeve 17 is an annular structure with an opening on one side. A guide groove 18 is provided on the sleeve 17 for guiding the clamping plate 19, and a spring 21 is welded between the clamping plate 19 and the sleeve 17. By providing the guide groove 18 on the sleeve 17, when the flame detector body 2 extends between the four clamping plates 19, the distance between the four clamping plates 19 can be adjusted, so that the clamping plate 19 can clamp the flame detector body 2 of different specifications.

[0030] According to the instruction manual Figure 7 As shown, the splint 19 is an arc-shaped structure adapted to the flame detector body 2, and the splint 19 is provided with an inclined surface corresponding to the port of the flame detector body 2. By providing the inclined surface on the splint 19, when the flame detector body 2 extends into the splint 19, it is possible to avoid the flame detector body 2 directly colliding with the splint 19. The spring 21 is horizontally welded to a side position of the splint 19 extending into the guide groove 18. The spring 21 resets the splint 19. When the splint 19 is disconnected from the flame detector body 2, the spring 21 can drive the splint 19 back to the initial position. By extending the flame detector body 2 into the sleeve 17, the spring 21 can drive the splint 19 to always fit the outer surface of the flame detector body 2.

[0031] A rotating assembly for driving the flame detector body 2 to rotate is provided on the moving plate 14, and the rotating assembly includes a rack 22 fixedly mounted on the sleeve 17. A motor 23 is fixedly mounted on the moving plate 14, and an output end of the motor 23 is fixedly connected to a rotating shaft 24 that is transmission-connected to the rack 22.

[0032] The rack 22 is an annular structure, the rotating shaft 24 is horizontally arranged below the movable plate 14, and a gear 25 meshing with the rack 22 is fixedly mounted on the rotating shaft 24. When one side of the flame detector body 2 is inspected, the motor 23 is energized to drive the rotating shaft 24 to rotate, so that the sleeve 17 drives the flame detector body 2 to flip, thereby increasing the inspection range of the flame detector body 2, so that the flame detector body 2 can be fully inspected during operation.

[0033] It should be noted that the specific models and specifications of the flaw detection head 4, signal receiver 5, camera 6, fill light, cylinder 9, motor 1 11, and motor 2 23 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0034] The present invention can be explained by the following operation mode: The flame detector body 2 needs to be inspected before operation; The rubber sleeve 20 is installed on the lens of the flame detector body 2; The operator manually lifts the flame detector body 2 to between the two movable plates 14; The output end of the motor 11 drives the bidirectional screw 12 to rotate, and the bidirectional screw 12 drives the two nuts 13 to move toward or in opposite directions when rotating; When the two nuts 13 move toward each other, the traction connecting rod 15 deflects in the long hole, and the position difference generated when the connecting rod 15 deflects can resist the moving plate 14, so that the two moving plates 14 gradually approach the flame detector body 2, and the moving plate 14 drives the limit rod to slide in the slider 8. The port of the flame detector body 2 extends to between the four clamping plates 19 through the inclined surface, and the outer surface of the flame detector body 2 supports and resists the inner wall of the clamping plate 19. The spring 21 is compressed while the clamping plate 19 slides in the guide groove 18. The two ends of the flame detector body 2 extend into the sleeves 17 on both sides to achieve limit. The output end of the cylinder 9 is extended and retracted to drive the slider 8 to slide on the guide rod 7, thereby adjusting the distance between the flame detector body 2 and the flaw detection head 4 and the camera 6, and the fill light can illuminate the flame detector body 2; After the flaw detection head 4 is powered on, it can transmit a signal to the signal receiver 5. When the signal passes through the flame detector body 2, it can inspect the parts inside the flame detector body 2. The camera 6 can inspect the outer surface of the flame detector body 2. When one side of the flame detector body 2 is inspected, the output end of the second motor 23 drives the shaft 24 to rotate, and the shaft 24 drives the gear 25 to rotate. When the gear 25 rotates, it drives the sleeve 17 to rotate through the meshing rack 22, so that the sleeve 17 drives the rotating rod 16 to rotate in the moving plate 14, and the rotating rod 16 drives the sleeve 17, the clamping plate 19, and the flame detector body 2 to rotate; When the flame detector body 2 rotates a certain angle, the motor 23 stops driving, the camera 6 can inspect the outer surface of the flame detector body 2, and the flaw detection head 4 is turned on again to detect the flame detector body 2 again.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-test device for a marine flame detector, comprising a test bench (1) and a flame detector body (2), characterized in that: A bracket (3) is fixedly installed on the inspection table (1), and a flaw detector head (4) and a signal receiver (5) which are corresponding to each other and used for detecting the flame detector body (2) are respectively arranged on the bracket (3) and the inspection table (1). A slider (8) which is symmetrically arranged and used for adjusting the height of the flame detector body (2) is slidably sleeved in the bracket (3), and a frame (10) is fixedly installed on the slider (8). A moving plate (14) corresponding to the flame detector body (2) is connected to the frame (10) through a moving member, and a limiting structure for limiting the flame detector body (2) is arranged on the moving plate (14).

2. A self-test device for marine flame detectors according to claim 1, characterized in that: The bracket (3) is of a U-shaped structure, and a camera (6) and a supplementary light which are matched with each other and used for detecting the flame detector body (2) are arranged on the bracket (3). A rubber sleeve (20) is sleeved on the lens of the flame detector body (2).

3. A self-test device for marine flame detectors according to claim 1, characterized in that: Guide rods (7) which are symmetrically arranged and used for guiding the slider (8) are fixedly installed in the bracket (3). A cylinder (9) connected to the slider (8) is fixedly installed in the bracket (3). The guide rods (7) are vertically arranged on both sides of the flame detector body (2).

4. A self-test device for marine flame detectors according to claim 1, characterized in that: The moving member includes a motor I (11) fixedly installed on the frame (10), and a bidirectional lead screw (12) is fixedly connected to the output end of the motor I (11). Two matching nuts (13) are slidably sleeved on the bidirectional lead screw (12), and a connecting rod (15) is connected between the nut (13) and the moving plate (14).

5. A self-test device for marine flame detectors according to claim 4, characterized in that: The bidirectional lead screw (12) is horizontally arranged on both sides of the flame detector body (2). The two ends of the connecting rod (15) are respectively pin-connected to the nut (13) and one side of the moving plate (14). The moving plate (14) and the connecting rod (15) extend to one side position outside the frame (10), and a long hole for guiding the connecting rod (15) is formed in the frame (10). A limiting rod extending to the slider (8) is fixedly installed on the moving plate (14).

6. A self-test device for marine flame detectors according to claim 1, characterized in that: The limiting structure includes a rotating rod (16) rotatably installed in the moving plate (14), and a sleeve (17) for clamping the flame detector body (2) is fixedly installed on the rotating rod (16). Four circumferentially distributed clamping plates (19) for clamping the flame detector body (2) are slidably sleeved on the sleeve (17), and a spring (21) is welded between the clamping plate (19) and the sleeve (17). A rotating assembly for driving the flame detector body (2) to rotate is arranged on the moving plate (14).

7. A self-test device for marine flame detectors according to claim 6, characterized in that: The rotating rod (16) is horizontally arranged. The sleeve (17) is of an annular structure with an opening on one side, and a guiding groove (18) for guiding the clamping plate (19) is formed in the sleeve (17).

8. A self-test device for marine flame detectors according to claim 6, characterized in that: The clamping plate (19) is of an arc-shaped structure adapted to the flame detector body (2), and an inclined surface corresponding to the port of the flame detector body (2) is formed on the clamping plate (19). The spring (21) is horizontally welded to one side of the clamping plate (19) extending into the guiding groove (18).

9. A self-test device for marine flame detectors according to claim 6, characterized in that: The rotating assembly comprises a rack (22) fixedly mounted on the sleeve (17), a second motor (23) fixedly mounted on the moving plate (14), and a rotating shaft (24) drivingly connected to the rack (22) fixedly connected to the output end of the second motor (23).

10. A self-test device for marine flame detectors according to claim 9, characterized in that: The rack (22) is an annular structure, the rotating shaft (24) is horizontally arranged below the moving plate (14), and a gear (25) meshingly connected with the rack (22) is fixedly mounted on the rotating shaft (24).

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