Methanol leakage sensing device for ship hybrid power fuel supply end

Abstract

The utility model relates to a methanol leakage sensing device for a ship hybrid power fuel supply end. The methanol leakage sensing device comprises a butt joint pipe, a mounting bracket, a sliding frame, a sensing assembly and a power mechanism, the butt joint pipe is communicated with a methanol supply pipeline, the mounting bracket is fixed on the butt joint pipe, the mounting bracket comprises a first supporting rod and a second supporting rod which are axially distributed along the methanol supply pipeline, the first supporting rod and the second supporting rod are parallel to each other, and tooth grooves are respectively formed in opposite sides of the first supporting rod and the second supporting rod; the sensing assembly and the power mechanism are fixed to the sliding frame, the two ends of the sliding frame are slidably installed on the first supporting rod and the second supporting rod respectively, the power mechanism comprises a power motor and a gear, the power motor is in driving connection with the gear, and the gear is meshed with the tooth groove. Compared with the prior art, the device has the advantages of comprehensive monitoring, high detection efficiency and reliability and the like.

Description

Technical Field

[0001] The utility model relates to the field of ship fuel supply devices, in particular to a methanol leakage sensing device for a ship hybrid power fuel supply end. Background Art

[0002] Shipping is a key part of global trade. It promotes the development of the global economy by transporting goods and people through ships. When a ship is traveling, its power is divided into single supply and mixed supply. With the innovation of technology and the diversified development of energy, existing ships have adopted multi-energy hybrid power. Among them, methanol, as a new green fuel, can not only meet the emission requirements, but also is easy to obtain and inexpensive. In the supply of methanol, due to the low flash point, flammable and explosive, toxic and volatile characteristics of methanol, gaseous injection fuel is used. In the prior art, the fuel supply system of the marine engine mainly includes: a fuel tank, an electric fuel pump, an injector and a feed pipe; the electric fuel pump is used to draw fuel from the fuel tank, and then deliver it to the injector through the feed pipe, and the injector then sprays the fuel into the cylinder of the engine for combustion.

[0003] Since methanol is toxic and volatile, it is very necessary to monitor the leakage of methanol at the hybrid fuel supply end of the ship. However, the existing methanol leakage detection device can only detect the local area outside the fuel supply pipeline, which has great detection limitations. Therefore, it is necessary to provide a methanol leakage sensing device for the hybrid fuel supply end of the ship to solve the above technical problems. Summary of the invention

[0004] The purpose of the utility model is to overcome the defect that the methanol leakage detection device in the above-mentioned prior art can only detect the local area outside the fuel supply pipeline and has great detection limitations, and to provide a methanol leakage sensing device for the hybrid fuel supply end of a ship which has comprehensive monitoring and is convenient for quickly finding the leakage area.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A methanol leakage sensing device for a hybrid fuel supply end of a ship, comprising a butt joint pipe, a mounting bracket, a sliding frame, a sensing component and a power mechanism;

[0007] The butt joint is connected to the methanol supply pipeline, the mounting bracket is fixed on the butt joint, and the mounting bracket includes a first support rod and a second support rod distributed along the axial direction of the methanol supply pipeline, the first support rod and the second support rod are parallel to each other, and tooth grooves are respectively provided on opposite sides;

[0008] The sensing component and the power mechanism are fixed on a sliding frame, and the two ends of the sliding frame can be slidably installed on the first support rod and the second support rod respectively. The power mechanism includes a power motor and a gear. The power motor drives the connecting gear, and the gear is meshed with the tooth groove.

[0009] Preferably, the sensing component includes a detection tube, a methanol detector and a controller;

[0010] The sliding frame is provided with a mounting hole matching with the detection tube, the detection tube is vertically fixed in the mounting hole, the methanol detector is installed in the detection tube and is located at one end of the detection tube close to the methanol supply pipeline, and the methanol detector is connected to the controller.

[0011] Preferably, the sensing component further comprises an induced draft fan, which is installed on the detection tube and located at an end of the detection tube away from the methanol detector, and the wind direction of the induced draft fan is away from the methanol supply pipeline.

[0012] Preferably, the controller is electrically connected to a flashing alarm light, and the flashing alarm light is mounted on the upper surface of the sliding frame.

[0013] Preferably, the controller is connected to a wireless communicator, which is installed on the controller and is communicatively connected to a host computer.

[0014] Preferably, a T-shaped slot is provided on one side of the sliding frame, a battery compartment is inserted into the T-shaped slot, a battery is installed in the battery compartment, and the battery is electrically connected to the controller and the power motor.

[0015] Preferably, the butt joint includes a first pipe and a second pipe, and the first pipe and the second pipe are respectively installed at two ends of the methanol supply pipe.

[0016] Preferably, a connecting flange is provided on the butt-joint pipe, and the butt-joint pipe is connected to the methanol supply pipeline via the connecting flange.

[0017] Preferably, the mounting bracket comprises an arc-shaped connecting section and a supporting plate;

[0018] The arc-shaped connecting section is coaxially arranged with the connecting flange and connected by bolts. The supporting plate is fixed on the arc-shaped connecting section. The two ends of the supporting rod are respectively connected to the supporting plates on the first pipeline and the second pipeline.

[0019] Preferably, the device further comprises a gas pressure sensor electrically connected to the host computer, and a gas pressure sensor is respectively embedded in the first pipeline and the second pipeline.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] (1) In this scheme, the butt joints are installed at both ends of the methanol supply pipeline and connected to the methanol supply pipeline. The power motor of the power mechanism drives the gear to rotate, and the engagement between the gear and the tooth groove on the support rod is used to drive the sliding frame to reciprocate along the support rod. The sensing component on the sliding frame is used to sense methanol leakage in the methanol supply pipeline under the support rod.

[0022] A support rod and a sliding frame slidably connected to the support rod are arranged at the upper end of the methanol supply pipeline through a butt joint. A power mechanism on the sliding frame drives the sliding frame to move along the support rod in various areas of the methanol supply pipeline, and cooperates with the sensing component on the sliding frame to sense methanol leakage, thereby performing comprehensive methanol leakage sensing on the supply end, thereby improving the comprehensiveness and reliability of methanol leakage sensing. The structure is easy to install, and the sliding frame moves reliably and stably.

[0023] (2) In this solution, a formaldehyde detector is installed in the detection tube on the sliding frame at one end close to the formaldehyde supply tube, and an induced draft fan is installed in the opposite end. The induced draft fan facilitates the adsorption of air around the detection tube into the detection tube, so that the methanol detector can quickly detect the methanol content in the surrounding gas, thereby improving the detection efficiency.

[0024] (3) This solution embeds gas pressure sensors at both ends of the formaldehyde supply pipe to monitor the methanol gas pressure at both ends of the entire supply pipeline in real time. When the gas pressure difference at both ends is abnormal, the leakage of methanol is detected in time to assist in judging formaldehyde leakage and improve the reliability of the sensing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A structural schematic diagram of a preferred embodiment of a methanol leakage sensing device for a hybrid fuel supply end of a ship provided by the utility model;

[0026] Figure 2 A schematic diagram of the structure of a detection tube installed on a sliding frame of a methanol leakage sensing device for a hybrid fuel supply end of a ship provided by the utility model;

[0027] Figure 3 A schematic diagram of a structure in which a detector is installed on a sliding frame of a methanol leakage sensing device for a hybrid fuel supply end of a ship provided by the utility model;

[0028] Figure 4 This is a structural schematic diagram of the methanol leakage sensing device for the hybrid fuel supply end of a ship provided by the utility model being connected to the methanol fuel supply pipe.

[0029] In the figure: 1. butt pipe; 11. connecting flange; 2. mounting bracket; 21. support rod; 201. tooth groove; 3. sliding frame; 301. T-slot; 31. battery compartment; 32. battery; 4. detection tube; 41. induced draft fan; 5. methanol detector; 6. controller; 61. wireless communicator; 62. flashing alarm light; 7. power mechanism; 71. power motor; 72. gear; 8. gas pressure sensor. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0034] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. Example

[0036] like Figure 1 As shown, this embodiment provides a methanol leakage sensing device for a hybrid fuel supply end of a ship, comprising a butt joint pipe 1, a mounting bracket 2, a sliding frame 3, a sensing component and a power mechanism 7;

[0037] The butt joint pipe 1 is connected to the methanol supply pipeline, and the mounting bracket 2 is fixed on the butt joint pipe 1. The mounting bracket 2 includes a first support rod and a second support rod distributed along the axial direction of the methanol supply pipeline. The first support rod and the second support rod are parallel to each other, and tooth grooves are respectively provided on opposite sides.

[0038] The sensing component and the power mechanism 7 are fixed on the sliding frame 3. The two ends of the sliding frame 3 can be slidably installed on the first support rod and the second support rod respectively. The power mechanism 7 includes a power motor and a gear. The power motor drives the connecting gear, and the gear is meshed with the tooth groove.

[0039] Working principle: The butt joint 1 is installed at both ends of the methanol supply pipeline and connected to the methanol supply pipeline. The power motor 71 of the power mechanism 7 drives the gear 72 to rotate. The engagement between the gear 72 and the tooth groove on the support rod is used to drive the sliding frame 3 to reciprocate along the support rod. The sensing component on the sliding frame 3 is used to sense methanol leakage in the methanol supply pipeline under the support rod.

[0040] A support rod and a sliding frame 3 slidably connected to the support rod are arranged at the upper end of the methanol supply pipeline through the docking tube 1. The power mechanism on the sliding frame 3 drives the sliding frame 3 to move along the support rod in various areas of the methanol supply pipeline, and cooperates with the sensing component on the sliding frame 3 to sense methanol leakage, thereby performing comprehensive methanol leakage sensing on the supply end, thereby improving the comprehensiveness and reliability of methanol leakage sensing, and the structure is easy to install, and the sliding frame 3 moves reliably and stably.

[0041] Preferred implementation mode, as Figures 2 to 3 As shown, the sensing component includes a detection tube 4, a methanol detector 5 and a controller 6;

[0042] The sliding frame 3 is provided with a mounting hole matching the detection tube 4. The detection tube 4 is vertically fixed in the mounting hole. The methanol detector 5 is installed in the detection tube 4 and is located at one end of the detection tube 4 close to the methanol supply pipeline. The methanol detector 5 is connected to the controller 6.

[0043] Furthermore, the sensing component also includes an induced draft fan 41, which is installed on the detection tube 4 and located at one end of the detection tube 4 away from the methanol detector 5, and the wind direction of the induced draft fan 41 is away from the methanol supply pipeline.

[0044] A formaldehyde detector is installed in the detection tube arranged on the sliding frame, at one end close to the formaldehyde supply tube, and an induced draft fan is installed in the opposite end. The induced draft fan facilitates the adsorption of air around the detection tube into the detection tube, so that the methanol detector can quickly detect the methanol content of the surrounding gas, thereby improving the detection efficiency.

[0045] The controller 6 is electrically connected to a flashing alarm light 62, which is mounted on the upper surface of the sliding frame 3. The controller 6 is connected to a wireless communicator 61, which is mounted on the controller 6 and is communicatively connected to the host computer.

[0046] Furthermore, a T-slot 301 is provided on one side of the sliding frame 3 , and a battery compartment 31 is inserted into the T-slot 301 . A battery 32 is installed in the battery compartment 31 . The battery 32 is electrically connected to the controller 6 and connected to the power motor 71 .

[0047] Preferred implementation mode, as Figure 4 As shown, the butt joint 1 includes a first pipeline and a second pipeline, and the first pipeline and the second pipeline are respectively installed at two ends of the methanol supply pipeline.

[0048] Specifically, a connecting flange 11 is provided on the butt joint pipe 1, and the butt joint pipe 1 is connected to the methanol supply pipeline through the connecting flange 11. The mounting bracket 2 includes an arc-shaped connecting section and a support plate; the arc-shaped connecting section is coaxially arranged with the connecting flange 11 and connected by bolts, the support plate is fixed on the arc-shaped connecting section, and the two ends of the support rod 21 are respectively connected to the support plates on the first pipeline and the second pipeline.

[0049] Furthermore, the device also includes a gas pressure sensor 8 electrically connected to the upper machine, and a gas pressure sensor 8 is embedded in the first pipeline and the second pipeline respectively.

[0050] Gas pressure sensors are embedded at both ends of the formaldehyde supply pipe to monitor the methanol gas pressure at both ends of the entire supply pipeline in real time. When the gas pressure difference at both ends is abnormal, methanol leakage is detected in time to assist in judging formaldehyde leakage and improve the reliability of the sensing device.

[0051] In combination with the above preferred implementation modes, Figures 1 to 4 As shown, this embodiment provides a more specific implementation method, including: a butt-joint pipe 1, which is provided with two groups, and the two groups of butt-joint pipes 1 are respectively installed at both ends of the methanol supply pipeline and are connected with the methanol supply pipe;

[0052] There are two sets of mounting brackets 2, and the two sets of mounting brackets 2 are respectively mounted on the two sets of butt-jointed pipes 1, and two sets of support rods 21 are symmetrically mounted on the two sets of mounting brackets 2;

[0053] A sliding frame 3 is slidably mounted on two groups of support rods 21, and a detection tube 4 is mounted on the sliding frame 3, a methanol detector 5 is embedded at the bottom end of the detection tube 4, the methanol detector 5 is electrically connected to a controller 6, the controller 6 is mounted on one side of the sliding frame 3, and the controller 6 is electrically connected to a wireless communicator 61, the wireless communicator 61 is mounted on the controller 6 and is wirelessly connected to a host computer, a power mechanism 7 for driving the sliding frame 3 to slide along the two groups of support rods 21 is mounted on the sliding frame 3, and the power mechanism 7 is electrically connected to the controller 6;

[0054] There are two groups of gas pressure sensors 8 , and the two groups of gas pressure sensors 8 are respectively embedded in the two groups of docking pipes 1 and are electrically connected to the host computer through cables.

[0055] The butt joint 1 is provided with a connection flange 11 for communicating with a methanol fuel supply pipeline. The controller 6 is electrically connected to a flashing alarm light 62 , and the flashing alarm light 62 is mounted on the upper surface of the sliding frame 3 .

[0056] When in use, two sets of butt-joint pipes 1 are respectively installed at the two ends of the methanol supply pipeline by means of connecting flanges 11, and are connected to the methanol supply pipe, specifically, one is installed at the liquid outlet end of the electric fuel pump, and the other is installed at the liquid inlet end of the injector, so as to realize leakage monitoring of the methanol fuel supply end, and then the controller 6 starts the power mechanism 7 to drive the sliding frame 3 to slide back and forth along the support rod 21, and controls the methanol detector 5 at the bottom end of the detection tube 4 to monitor the methanol content in the passing area during sliding, and when a leakage point in the supply pipeline is detected, the methanol detector 5 detects an abnormality, controls the power mechanism 7 to shut down, turns on the flashing alarm light 62 for early warning, and feeds back the leakage information to the host computer through the wireless communicator 61, so that while monitoring the entire supply pipeline, once a leakage is detected, the leakage area can be quickly located for easy maintenance.

[0057] Furthermore, gas pressure sensors 8 are provided on the two sets of docking pipes 1 to monitor the methanol gas pressure at both ends of the entire methanol fuel supply pipeline in real time. When the gas pressure difference at both ends is abnormal, leakage may occur, and the abnormality is uploaded to the host computer, which notifies the maintenance personnel to detect the leakage of methanol in time.

[0058] For a methanol fuel supply pipeline laid in a straight line, when the methanol fuel supply pipeline is curved, it is only necessary to modify the support rod 21 into a corresponding curved pipe, which can cover the entire methanol fuel supply pipeline and facilitate the sliding of the sliding frame 3.

[0059] In the embodiments of the present invention, please refer to Figures 1 to 4 A T-shaped slot 301 is provided on the other side of the sliding frame 3, a battery compartment 31 is movably inserted in the T-shaped slot 301, a battery 32 is installed in the battery compartment 31, and the battery 32 is electrically connected to the controller 6;

[0060] It should be noted that: in this way, the movably inserted battery compartment 31 and the storage battery 32 are used to provide power to the entire device. Later, by regularly replacing the storage battery 32, the entire device can be continuously provided with energy, reducing the interference of the dragging line when the sliding frame 3 moves.

[0061] In the embodiments of the present invention, please refer to Figures 1 to 4 The top of the detection tube 4 is provided with an induced draft fan 41, which is electrically connected to the controller 6, and the wind direction of the induced draft fan 41 is upward;

[0062] It should be noted that: when the detection tube 4 is moved for detection, the induced draft fan 41 is turned on to absorb the surrounding airflow into the detection tube 4, which is convenient for the methanol detector 5 to detect the surrounding environment and is conducive to improving the detection efficiency.

[0063] In the embodiments of the present invention, please refer to Figures 1 to 4 The power mechanism 7 includes a power motor 71. Two power motors 71 are symmetrically mounted on the sliding frame 3. Gears 72 are fixedly sleeved on the output shafts of the two power motors 71. Tooth grooves 201 are provided on the inner sides of the two sets of support rods 21. The gears 72 mesh with the tooth grooves 201 on the same side.

[0064] It should be noted that when the power mechanism 7 is used, the power motor 71 is controlled to drive the gear 72 to rotate, and the gear 72 is meshed with the tooth groove 201, thereby driving the sliding frame 3 to slide along the support rod 21, and by controlling the power motor 71 to rotate in the square direction, the sliding frame 3 can move back and forth along the support rod 21;

[0065] In the present embodiment, when the support rod 21 is curved and the tooth groove 201 of the curved portion is difficult to engage with the gear 72, a corresponding arc-shaped rack plate can be replaced and installed at the curved portion of the support rod 21, and a corresponding through groove is provided on the sliding frame 3 for the arc-shaped rack plate to pass through, thereby achieving normal drive.

[0066] The working principle of the methanol leakage sensing device for the hybrid fuel supply end of a ship provided in this embodiment is as follows: when in use, two sets of butt pipes 1 are respectively installed at the two ends of the methanol supply pipeline using the connecting flanges 11, and are connected to the methanol supply pipe, specifically one is installed at the liquid outlet end of the electric fuel pump, and the other is installed at the liquid inlet end of the injector, so as to realize the leakage monitoring of the methanol fuel supply end, and then the controller 6 starts the power mechanism 7 to drive the sliding frame 3 to slide back and forth along the support rod 21, and controls the methanol detector 5 at the bottom end of the detection tube 4 to monitor the methanol content in the area passed through when sliding, and when the detection tube 4 moves for detection , turn on the induced draft fan 41 to absorb the surrounding airflow into the detection tube 4, so that the methanol detector 5 can detect the surrounding environment, which is conducive to improving the efficiency of detection. When the supply pipeline leaks, the methanol detector 5 detects an abnormality, controls the power mechanism 7 to shut down, turns on the flash alarm light 62 for early warning, and feeds back the leakage information to the host computer through the wireless communicator 61. The host computer controls whether to stop the fuel supply and maintenance according to the leakage situation, or to supply methanol fuel while maintenance. In this way, while monitoring the entire supply pipeline, once a leak is detected, the leak area can be quickly located for easy maintenance. A gas pressure sensor 8 is set on the two groups of butt pipes 1 to monitor the methanol gas pressure at both ends of the entire methanol fuel supply pipeline in real time. When the pressure difference at both ends is abnormal, a leak may occur, and the abnormality is uploaded to the host computer, which notifies the maintenance personnel to detect the leakage of methanol in time.

[0067] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0068] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A methanol leakage sensing device for a ship hybrid fuel supply end, characterized in that: It comprises a butt joint pipe (1), a mounting bracket (2), a sliding frame (3), a sensing component and a power mechanism (7); The butt joint pipe (1) is connected to the methanol supply pipeline, the mounting bracket (2) is fixed on the butt joint pipe (1), the mounting bracket (2) comprises a first support rod and a second support rod distributed along the axial direction of the methanol supply pipeline, the first support rod and the second support rod are parallel to each other, and tooth grooves are respectively provided on opposite sides; The sensing component and the power mechanism (7) are fixed on the sliding frame (3); the two ends of the sliding frame (3) are slidably mounted on the first support rod and the second support rod respectively; the power mechanism (7) comprises a power motor and a gear; the power motor drives the connecting gear, and the gear meshes with the tooth groove.

2. A methanol leakage sensing device for a ship hybrid fuel supply end according to claim 1, characterized in that: The sensing component comprises a detection tube (4), a methanol detector (5) and a controller (6); The sliding frame (3) is provided with a mounting hole that matches the detection tube (4). The detection tube (4) is vertically fixed in the mounting hole. The methanol detector (5) is installed in the detection tube (4) and is located at one end of the detection tube (4) close to the methanol supply pipeline. The methanol detector (5) is connected to a controller (6).

3. The methanol leakage sensing device for a ship hybrid fuel supply end according to claim 2, characterized in that: The sensing component further comprises an induced draft fan (41), the induced draft fan (41) being installed on the detection tube (4) and located at an end of the detection tube (4) away from the methanol detector (5), and the wind direction of the induced draft fan (41) is away from the methanol supply pipeline.

4. The methanol leakage sensing device for a ship hybrid fuel supply end according to claim 2, characterized in that: The controller (6) is electrically connected to a flashing alarm light (62), and the flashing alarm light (62) is mounted on the upper surface of the sliding frame (3).

5. The methanol leakage sensing device for a ship hybrid fuel supply end according to claim 2, characterized in that: The controller (6) is connected to a wireless communicator (61), which is installed on the controller (6) and is communicatively connected to a host computer.

6. The methanol leakage sensing device for a ship hybrid fuel supply end according to claim 2, characterized in that: A T-shaped slot (301) is provided on one side of the sliding frame (3), a battery compartment (31) is inserted into the T-shaped slot (301), a storage battery (32) is installed in the battery compartment (31), and the storage battery (32) is electrically connected to the controller (6) and connected to the power motor (71).

7. The methanol leakage sensing device for a ship hybrid fuel supply end according to claim 1, characterized in that: The butt joint (1) comprises a first pipe and a second pipe, wherein the first pipe and the second pipe are respectively installed at two ends of the methanol supply pipe.

8. The methanol leakage sensing device for a ship hybrid fuel supply end according to claim 7, characterized in that: The butt-joint pipe (1) is provided with a connecting flange (11), and the butt-joint pipe (1) is connected to a methanol supply pipeline via the connecting flange (11).

9. A methanol leakage sensing device for a ship hybrid fuel supply end according to claim 8, characterized in that: The mounting bracket (2) comprises an arc-shaped connecting section and a supporting plate; The arc-shaped connecting section is coaxially arranged with the connecting flange (11) and connected via bolts; the support plate is fixed on the arc-shaped connecting section; and the two ends of the support rod (21) are respectively connected to the support plates on the first pipe and the second pipe.

10. The methanol leakage sensing device for a ship hybrid fuel supply end according to claim 7, characterized in that: The device further comprises a gas pressure sensor (8) electrically connected to the upper machine, and a gas pressure sensor (8) is respectively embedded in the first pipe and the second pipe.

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