Modularized reconfigurable hazardous gas detection array structure and system

Abstract

The invention relates to the technical field of gas detection, in particular to a modular reconfigurable hazardous gas detection array structure and system.The modular reconfigurable hazardous gas detection array structure comprises detectors, the detectors are arranged in a group and installed at the two ends of a conveying pipeline respectively, and each detector comprises an outer shell and an inner shell; blades are rotatably installed in an inner cavity of the connecting pipe, the two sides of the inner shell are sealed, and a gap allowing gas to flow is reserved between the inner shell and the outer shell. The beneficial effects are that the circuit board and the light receiving plate are installed on the inner shell, the light emitter is installed on the outer shell, the inner shell and the outer shell form an inner-outer double-layer structure, a gap is reserved between the inner shell and the outer shell for hazardous gas to pass through, and light emitted by the light emitter penetrates through the hazardous gas and irradiates the light receiving plate; chromatographic analysis is carried out through color changes of received light, hazardous gas components and corresponding concentrations can be judged, and whether gas leakage happens to the middle section of the conveying pipeline or not can be judged in time by comparing the hazardous gas concentrations at the two ends of the conveying pipeline.

Description

Technical Field

[0001] This invention relates to the field of gas detection technology, specifically to a modular and reconfigurable hazardous gas detection array structure and system. Background Art

[0002] Hazardous gases, such as ammonia, ozone, nitrogen dioxide, sulfur dioxide, carbon monoxide, hydrogen sulfide, and chlorine, are all toxic gases. They are usually transported through pipelines to treatment equipment for processing before being released. To detect whether hazardous gases are leaking, detection equipment is generally installed around the pipelines.

[0003] In the prior art, Chinese utility model with publication number CN220983224U discloses a photocatalytic gas sensor array detection device. By designing an array PCB board, it is possible to detect multiple gas sensors and improve the response recovery speed of the gas sensors.

[0004] However, currently, even small leaks of hazardous gases transported in pipelines can have serious impacts on the surrounding environment. Furthermore, when pipelines are long, the location of leaks is difficult to predict, and gas sensors struggle to detect leaks in a timely manner, posing significant safety hazards. Therefore, this invention proposes a modular, reconfigurable hazardous gas detection array structure and system to address these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a modular and reconfigurable hazardous gas detection array structure and system to solve the problem mentioned in the background art that gas sensors are unable to detect hazardous gas leaks in a timely manner around long pipelines.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a modular and reconfigurable hazardous gas detection array structure, comprising:

[0007] The detector is configured in pairs and installed at both ends of the conveying pipe. The detector includes an outer shell and an inner shell. A light emitter is disposed through the inner shell. A circuit board is fixedly embedded in the inner shell. A light receiving plate is electrically connected to the surface of the circuit board and faces the circuit board.

[0008] Both sides of the outer shell are fixed with connecting pipes, and fan blades are rotatably installed inside the connecting pipes. Both sides of the inner shell are sealed, and a gap is left between the inner shell and the outer shell for gas flow.

[0009] Preferably, multiple light emitters and circuit boards are provided and arranged in a ring array. A light-transmitting plate is fixed to the inner wall of the housing. The light-transmitting plate is ring-shaped and corresponds to the emitting end of the light emitter.

[0010] Preferably, the surface of the circuit board is provided with an electrical connection area, the light receiving board is mounted on a mounting base, the mounting base is bonded and fixed to the surface of the circuit board and corresponds to the electrical connection area, and the back of the mounting base is provided with electrical connection contacts.

[0011] Preferably, the front of the circuit board is covered with a protective cover plate, and the protective cover plate has a notch groove in the middle that corresponds to the mounting base. A transparent cover is fixed to the surface of the mounting base, and the transparent cover is a hollow hemisphere that covers the outside of the light receiving plate.

[0012] Preferably, the middle surface of the inner shell has a regular polygonal structure, and the surface of the inner shell has an inlay groove corresponding to the circuit board. Both sides of the inner shell and both sides of the outer shell have a tapered structure with narrow openings.

[0013] Preferably, a cable one is provided on the outer side of the outer shell, and multiple light emitters are electrically connected to the cable one. A protective cover is fixed on the outer side of the outer shell, and the protective cover covers the outer side of the light emitters and the cable one. A cable two is provided inside the inner shell. A through hole is provided through the bottom of the inlay groove, and multiple circuit boards are electrically connected to the cable two.

[0014] Preferably, a processor is disposed on the outer side of the outer casing, one end of the second cable passes through the inner casing and the outer casing in sequence and is electrically connected to the processor, and one end of the first cable passes through the protective cover and is electrically connected to the processor.

[0015] Preferably, sealing plates are fixed at both openings of the inner shell, and a fixing shaft is fixed on the surface of the sealing plate. The fan blade is rotatably sleeved on the outside of the fixing shaft. Filter plates are provided on both sides of the fan blade, and the inner and outer edges of the filter plates are respectively fixed to the fixing shaft and the connecting pipe.

[0016] Preferably, a docking flange is fixedly provided at the open end of the connecting pipe, the docking flange is fixedly connected to the conveying pipeline by bolts, and an annular sealing gasket is provided at the connection.

[0017] A hazardous gas detection system includes the hazardous gas detection array structure described above.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention uses two detectors as a set, installed at both ends of a delivery pipeline. Each detector includes an outer shell and an inner shell. The inner shell has a circuit board and a light receiving board installed on it, while the outer shell has a light emitter installed on it. The inner and outer shells form a double-layer structure with a gap between them to allow hazardous gases to pass through. The light emitter emits light that passes through the hazardous gas and illuminates the light receiving board. The light is received by the circuit board and transmitted to the processor for processing. By performing chromatographic analysis on the color change of the received light, the composition and corresponding concentration of the hazardous gas can be determined. By comparing the concentrations of the hazardous gas at both ends of the delivery pipeline, it is possible to promptly determine whether a gas leak has occurred in the middle section of the pipeline. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure and installation of the present invention;

[0021] Figure 2 Schematic diagram of the cross-section of the detector structure of the present invention;

[0022] Figure 3 This is a partial cross-sectional schematic diagram of the detector structure of the present invention;

[0023] Figure 4 It is a partially cutaway schematic diagram of the inner shell structure of the present invention;

[0024] Figure 5 This is an exploded view of the circuit board structure of the present invention;

[0025] Figure 6 This is a half-sectional schematic diagram of the light receiving plate structure of the present invention.

[0026] In the diagram: 1. Detector; 2. Conveying pipe; 3. Outer shell; 31. Light emitter; 311. Cable 1; 32. Light-transmitting plate; 33. Connecting pipe; 331. Connecting flange; 34. Fan blade; 341. Filter screen; 35. Protective cover; 4. Inner shell; 41. Circuit board; 411. Electrical connection area; 42. Mounting base; 421. Electrical connection contact point; 43. Light receiving plate; 44. Transparent cover; 45. Embedding groove; 451. Through hole; 46. Protective cover plate; 461. Notch groove; 47. Cable 2; 48. Fixed shaft; 49. Sealing plate. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 6 , the present invention provides a technical solution:

[0029] Example 1: A modular and reconfigurable hazardous gas detection array structure, comprising: detector 1 and delivery pipeline 2.

[0030] Specifically, detector 1 is configured in pairs and installed at both ends of the delivery pipeline 2. The two detectors 1 detect the concentration of hazardous gas in the inner cavity of both ends of the delivery pipeline 2. By comparing the detection results of the two detectors 1, it can be determined whether there is a gas leak during the delivery process of the delivery pipeline 2. Detector 1 includes an outer shell 3 and an inner shell 4. A light emitter 31 is installed through the inner shell 4. A circuit board 41 is fixedly embedded in the inner shell 4. A light receiving plate 43 is electrically connected to the surface of the circuit board 41, and the light receiving plate 43 faces the circuit board 41. The light emitter 31 emits light and illuminates the light receiving plate 43. On plate 43, when the hazardous gas flows in the gap between the outer shell 3 and the inner shell 4, light passes through the gas. Different components of the hazardous gas will absorb the light spectrum, thereby changing the color of the light received on the light receiving plate 43. Based on the color and intensity of the light received by the light receiving plate 43, the composition and concentration of the hazardous gas can be determined. This device sets two detectors 1 to perform two detections at both ends of the delivery pipeline 2. By comparing the two detection results of the hazardous gas by the two detectors 1, it is possible to determine whether the concentration of each component of the hazardous gas has changed, and thus determine whether the gas is leaking.

[0031] Furthermore, connecting pipes 33 are fixed on both sides of the outer shell 3, and fan blades 34 are rotatably installed in the inner cavity of the connecting pipe 33. The inner shell 4 is sealed on both sides, and a gap for gas flow is left between the inner shell 4 and the outer shell 3, such as Figure 2 and Figure 3 As shown, when the gas flows, it blows onto the surface of the fan blade 34, causing the fan blade 34 to rotate. The fan blade 34, in turn, agitates the gas flow, allowing the gas components flowing between the outer shell 3 and the inner shell 4 to be more evenly distributed, thus ensuring the accuracy of the detection results.

[0032] To prevent gas leakage at the location of the light emitter 31, multiple light emitters 31 and circuit board 41 are arranged in a ring array. Based on the composition of the hazardous gas transported in the inner cavity of the delivery pipe 2, multiple light emitters 31 are used to emit light of different wavelengths, so that different components of hazardous gas will produce different degrees of spectral absorption. Combined with the uniform agitation of the gas by the fan blades 34, it is ensured that even if the installation positions of each light emitter 31 are different, the concentration of each component of the gas can still be accurately detected. In addition, a light-transmitting plate 32 is fixed on the inner wall of the outer casing 3. The light-transmitting plate 32 is ring-shaped and corresponds to the emitting end of the light emitter 31. Figure 3 and Figure 4 As shown, the light-transmitting plate 32 allows light to pass through, while also being able to seal and isolate gas, thereby preventing gas from leaking inside the housing 3 along the location of the light emitter 31 .

[0033] In order to install the light receiving board 43, the present application also has an electrical connection area 411 provided on the surface of the circuit board 41, the light receiving board 43 is installed on the mounting base 42, the mounting base 42 is adhesively fixed to the surface of the circuit board 41 and corresponds to the electrical connection area 411, and the back of the mounting base 42 is provided with an electrical connection contact 421, combined with Figure 6 and Figure 5 As shown, after the mounting base 42 is bonded and fixed to the surface of the circuit board 41, the electrical connection contact 421 can maintain electrical connection with the circuit board 41. After the light receiving plate 43 receives the light, it transmits the signal to the circuit board 41. The circuit board 41 processes the signal and sends it to the outside world in the form of data, which makes it easy for the staff to intuitively observe the concentration of each component of the hazardous gas and the concentration changes, thereby making it easier for the staff to judge the gas leakage situation.

[0034] In order to protect the circuit board 41, the present application also has a protective cover 46 covering the front of the circuit board 41. The protective cover 46 is set to protect the surface of the circuit board 41 to prevent water vapor carried in the gas from adhering to the surface of the circuit board 41 and affecting the normal operation of the circuit board 41. A notch groove 461 corresponding to the mounting base 42 is opened in the middle of the protective cover 46 for the installation of the mounting base 42. A transparent cover shell 44 is fixed on the surface of the mounting base 42. The transparent cover shell 44 is hollow hemispherical and covers the outside of the light receiving plate 43. The transparent cover shell 44 is set to protect the light receiving plate 43 without hindering the exposure to light. The transparent cover shell 44 can be made of transparent quartz glass material or transparent acrylic material.

[0035] In order to facilitate the installation of the circuit board 41, the middle surface of the inner shell 4 of the present application is a regular polygonal structure, and the surface of the inner shell 4 is provided with an inlay groove 45 corresponding to the circuit board 41, as shown in FIG. Figure 4 and Figure 5 As shown, the inner shell 4 of the regular polygonal structure can accommodate multiple circuit boards 41 for stable placement and installation. Both sides of the inner shell 4 and the outer shell 3 are tapered structures with closed ends. Figure 2 or Figure 3 As shown, when the gas enters the inner cavity of the outer shell 3 from one side of the outer shell 3, the gas can flow in the gap between the outer shell 3 and the inner shell 4. The conical structures on both sides of the outer shell 3 and the inner shell 4 can guide the gas to avoid the gas flow rate being greatly affected and causing large errors in the concentration detection results.

[0036] In order to power the light emitter 31 and the circuit board 41, the present application also has a cable 1 311 arranged on the outside of the outer shell 3, and multiple light emitters 31 are electrically connected to the cable 1 311. The cable 1 311 is used to power the light emitter 31. A protective cover 35 is fixed on the outside of the outer shell 3, and the protective cover 35 covers the outside of the light emitter 31 and the cable 1 311 to protect the light emitter 31 and the cable 1 311. A cable 2 47 is arranged inside the inner shell 4, and a through hole 451 is opened through the bottom of the embedding groove 45. Multiple circuit boards 41 are electrically connected to the cable 2 47. The cable 2 47 is used to power the circuit board 41 on the one hand and to transmit data signals of the circuit board 41 on the other hand.

[0037] In order to process and transmit the detection results, the present application also has a processor arranged on the outside of the outer shell 3, one end of the cable 2 47 passes through the inner shell 4 and the outer shell 3 in sequence and is electrically connected to the processor, and one end of the cable 1 311 passes through the protective cover 35 and is electrically connected to the processor. The processor can control factors such as the intensity and wavelength of the light emitted by the light emitter 31. The detector 1 of this device has an overall modular structure. The external processor can uniformly control and reconstruct the light emitted by each light emitter 31 inside the detector 1 to achieve concentration detection of different components of the hazardous gas. It has a wide range of applications and flexible adjustment. It cooperates with the circuit board 41 and the cable 2 47 to transmit the detection results back to the processor in a timely manner, and then based on existing technologies such as wireless transmission, the result data is remotely transmitted to the designated workstation, so that the staff can intuitively understand whether the hazardous gas is leaking.

[0038] In order to prevent dust and impurities in the gas from affecting the detection, the present application also has sealing plates 49 fixed at the openings on both sides of the inner shell 4 to prevent gas from entering the interior of the inner shell 4. A fixed shaft 48 is fixed on the surface of the sealing plate 49, and the fan blades 34 are rotatably sleeved on the outside of the fixed shaft 48. The setting of the fixed shaft 48 can install and position the fan blades 34. Filter plates 341 are provided on both sides of the fan blades 34, and the inner and outer edges of the filter plates 341 are respectively fixed with the fixed shaft 48 and the connecting pipe 33. The setting of the filter plates 341 can be used to filter dust and impurities in the gas to prevent these dust and impurities from affecting subsequent detection.

[0039] In order to facilitate the installation and disassembly of the entire device, the present application also has a docking flange 331 fixedly arranged at the open end of the connecting pipe 33. The docking flange 331 is fixedly connected to the conveying pipe 2 by bolts, and an annular sealing gasket is provided at the connection. The setting of the docking flange 331 can facilitate the connection or disassembly of the detector 1 of the present device and the conveying pipe 2, and the setting of the sealing gasket is used to avoid gas leakage at the interface.

[0040] The present invention also discloses a hazardous gas detection system, including the hazardous gas detection array structure described above.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A modular and reconfigurable hazardous gas detection array structure, characterized in that: include: A detector (1), wherein two detectors (1) are arranged in a group and are respectively installed at two ends of a conveying pipe (2), wherein the detector (1) comprises an outer shell (3) and an inner shell (4), wherein a light emitter (31) is provided through the inner shell (4), wherein a circuit board (41) is fixedly embedded in the inner shell (4), wherein a light receiving board (43) is electrically connected to a surface of the circuit board (41), and the light receiving board (43) faces the circuit board (41); Connecting pipes (33) are fixed on both sides of the outer shell (3), and fan blades (34) are rotatably mounted in the inner cavity of the connecting pipe (33). Both sides of the inner shell (4) are sealed, and a gap for gas flow is left between the inner shell (4) and the outer shell (3).

2. The modular reconfigurable hazardous gas detection array structure according to claim 1, characterized in that: The light emitters (31) and the circuit board (41) are both provided in plurality and distributed in a ring array, and a light-transmitting plate (32) is fixed to the inner wall of the housing (3), the light-transmitting plate (32) is ring-shaped, and the light-transmitting plate (32) corresponds to the emission end of the light emitter (31).

3. The modular reconfigurable hazardous gas detection array structure according to claim 1, characterized in that: The surface of the circuit board (41) is provided with an electrical connection area (411), the light receiving plate (43) is mounted on a mounting base (42), the mounting base (42) is adhesively fixed to the surface of the circuit board (41) and corresponds to the electrical connection area (411), and the back of the mounting base (42) is provided with an electrical connection contact (421).

4. The modular reconfigurable hazardous gas detection array structure according to claim 3, characterized in that: The front of the circuit board (41) is covered with a protective cover plate (46), a notch groove (461) corresponding to the mounting base (42) is provided in the middle of the protective cover plate (46), a transparent cover shell (44) is fixed to the surface of the mounting base (42), and the transparent cover shell (44) is hollow hemispherical and covers the outside of the light receiving plate (43).

5. The modular reconfigurable hazardous gas detection array structure according to claim 4, characterized in that: The middle surface of the inner shell (4) is in a regular polygonal structure, and a mounting groove (45) corresponding to the circuit board (41) is provided on the surface of the inner shell (4), and both sides of the inner shell (4) and both sides of the outer shell (3) are in a closed conical structure.

6. The modular reconfigurable hazardous gas detection array structure according to claim 5, characterized in that: A cable 1 (311) is arranged on the outer side of the outer shell (3), and the plurality of light emitters (31) are all electrically connected to the cable 1 (311). A protective cover (35) is fixed on the outer side of the outer shell (3), and the protective cover (35) covers the outer sides of the light emitters (31) and the cable 1 (311). A cable 2 (47) is arranged inside the inner shell (4), and a through hole (451) is provided through the bottom of the embedding groove (45), and the plurality of circuit boards (41) are all electrically connected to the cable 2 (47).

7. The modular reconfigurable hazardous gas detection array structure according to claim 6, characterized in that: A processor is disposed on the outside of the outer shell (3), one end of the second cable (47) passes through the inner shell (4) and the outer shell (3) in sequence and is electrically connected to the processor, and one end of the first cable (311) passes through the protective cover (35) and is electrically connected to the processor.

8. The modular reconfigurable hazardous gas detection array structure according to claim 1, characterized in that: Sealing plates (49) are fixed at both openings on both sides of the inner shell (4), a fixed shaft (48) is fixed on the surface of the sealing plate (49), the fan blade (34) is rotatably sleeved on the outside of the fixed shaft (48), and filter screen plates (341) are provided on both sides of the fan blade (34), and the fixed shaft (48) and the connecting pipe (33) are respectively fixed to the inner and outer edges of the filter screen plates (341).

9. The modular reconfigurable hazardous gas detection array structure according to claim 1, characterized in that: A docking flange (331) is fixedly provided at the open end of the connecting pipe (33), and the docking flange (331) is fixedly connected to the conveying pipeline (2) by bolts, and an annular sealing gasket is provided at the connection.

10. A dangerous gas detection system, characterized in that: The invention comprises a hazardous gas detection array structure as described in any one of claims 1 to 9.

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