Portable detection equipment for tail emission of hydrogen fuel engine

Abstract

The utility model relates to the technical field of tail gas detection, and provides portable detection equipment for tail gas emission of a hydrogen fuel engine, which comprises a tail gas analyzer, a gas guide mechanism arranged on the outer wall of one side of the tail gas analyzer and used for guiding and conveying tail gas to be detected, and a second shell arranged on the upper side of the tail gas analyzer and used for guiding and conveying the tail gas to be detected. A hydrogen adsorbent is arranged in the second shell, a second connector is arranged at the upper end of the tail gas analyzer, a first gas guide pipe fixedly communicates with the outer wall of one end of the second shell, the other end of the first gas guide pipe is fixedly connected with the second connector, and a second gas guide pipe fixedly communicates with the outer wall of the other end of the second shell; a fixing mechanism is arranged between the tail gas analyzer and the second shell and used for limiting and fixing the second shell, tail gas is discharged into the second shell, residual hydrogen fuel in the tail gas is adsorbed through the hydrogen adsorbent, and air pollution caused by the residual hydrogen fuel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust gas detection technology, and specifically, to a portable detection device for the tail exhaust of a hydrogen fuel engine. Background Art

[0002] A hydrogen fuel engine is a gas turbine engine that uses hydrogen as an energy source and outputs shaft power or thrust. With the characteristics of zero carbon emissions, cryogenic temperature, and easy preparation of liquid hydrogen fuel, hydrogen fuel engines have broad application prospects in both military and civilian aviation equipment fields. Compared with hydrogen fuel cells, hydrogen fuel engines have a higher power density and can achieve long-range intercontinental flights; compared with traditional aviation engines, in addition to having obvious advantages in carbon emissions, hydrogen fuel gas turbine engines also have advantages such as good starting performance, low fuel consumption, and large specific thrust / power.

[0003] After retrieval, the existing patent (publication number: CN218646929U) discloses a tail exhaust detection device for a hydrogen fuel engine. This utility model belongs to the technical field of exhaust gas detection. It includes a detection body, a filter slot is opened in the detection body, a limiting device is clamped in the filter slot, and a filter is arranged on the lower surface of the limiting device. The filter is located in the filter slot. For this tail exhaust detection device of the hydrogen fuel engine, by setting the filter, under the elastic force of the third spring, the push plate and the filter are pushed upward, and technicians can take out the filter through the limiting device. This method releases the restriction on the limiting slot by pressing the push block, and under the elastic force of the third spring, the filter is pushed upward. Compared with the original method, there is no need to disassemble the detection body, and the operation method is more convenient, which can facilitate technicians to quickly disassemble and assemble the filter, effectively saving a large amount of time consumed by disassembly, and bringing convenience to technicians during use.

[0004] However, it is found in the implementation of related technologies that the tail exhaust detection device for a hydrogen fuel engine has the following problems. When the hydrogen fuel engine is working, due to impurities, the hydrogen fuel burns incompletely, resulting in residual hydrogen fuel being discharged into the air. When the device detects the tail gas of the hydrogen fuel engine, it may pollute the air. Summary of the Utility Model

[0005] The utility model provides a portable detection device for the tail exhaust of a hydrogen fuel engine, which solves the problem that when the hydrogen fuel engine is working, due to impurities, the hydrogen fuel burns incompletely, resulting in residual hydrogen fuel being discharged into the air, and when the device detects the tail gas of the hydrogen fuel engine, it may pollute the air.

[0006] The technical solution of the utility model is as follows:

[0007] A portable detection device for the tail exhaust of a hydrogen fuel engine, comprising: an exhaust gas analyzer, on one outer wall of which a gas guiding mechanism is arranged for guiding and transporting the exhaust gas to be detected. A second outer shell is arranged above the exhaust gas analyzer, and a sealing cap is threadedly connected to the upper end of the second outer shell. A hydrogen adsorbent is arranged inside the second outer shell. A second connector is arranged at the upper end of the exhaust gas analyzer. One end of the outer wall of the second outer shell is fixedly communicated with a first gas pipe, and the other end of the first gas pipe is fixedly connected to the second connector. The other end of the outer wall of the second outer shell is fixedly communicated with a second gas pipe. A fixing mechanism is arranged between the exhaust gas analyzer and the second outer shell for limiting and fixing the second outer shell.

[0008] Preferably, the fixing mechanism comprises a first outer shell sleeved on the exhaust gas analyzer. A fixing block is arranged at the center position of the upper end of the first outer shell, and a fixing plate is fixedly connected inside the first outer shell. A limiting plate is arranged above the fixing plate.

[0009] Preferably, two bevel gears are arranged below the fixing plate. One end of a lead screw is rotatably connected to the bottom of the fixing block, and one of the bevel gears is fixedly connected to the other end of the lead screw. The lead screw penetrates through the limiting plate and is rotatably connected to the fixing plate, and the lead screw is threadedly connected with the limiting plate.

[0010] Preferably, a motor is fixedly connected to the bottom end inside the first outer shell, and another bevel gear is fixedly connected to the end of the output shaft of the motor. The two bevel gears are meshed with each other. It is characterized in that four sliding mechanisms are arranged between the fixing block and the first outer shell, and the four sliding mechanisms are annularly arrayed on the fixing block.

[0011] Preferably, the gas guiding mechanism comprises a first connector fixedly communicated with the outer wall of the exhaust gas analyzer. The first connector is fixedly communicated with a second exhaust gas delivery pipe, and the other end of the second exhaust gas delivery pipe is fixedly communicated with a filter. A tail gas receiving pipe is arranged on one side of the filter, and a first exhaust gas delivery pipe is fixedly communicated between the tail gas receiving pipe and the filter.

[0012] Preferably, the sliding mechanism comprises a limiting rod, the two ends of which are fixedly connected between the first outer shell and the fixing block. A sliding block is sleeved on the fixing block, a limiting block is fixedly connected to the top of the sliding block, and a buffer rubber is installed on the limiting block.

[0013] Preferably, four linkage structures are annularly arrayed on the limiting plate, and the number of the linkage structures is in one-to-one correspondence with the sliding blocks.

[0014] Preferably, the linkage structure includes a linkage rod. One end of the linkage rod is rotatably connected to a first hinge support, and the first hinge support is fixedly connected to the bottom of the sliding block. The other end of the linkage rod is rotatably connected to a second hinge support, and the second hinge support is fixedly connected to the outer wall of the limit plate.

[0015] The working principle and beneficial effects of the present utility model are as follows:

[0016] Insert the tail gas receiving pipe on the device into the tail pipe of the hydrogen fuel engine to be tested. The tail gas to be tested passes through the filter on the air guiding mechanism to filter large particles of impurities to prevent damage to the device, and then is sent to the tail gas analyzer to detect the components in the tail gas. The detected tail gas enters the second housing through the first air duct. The hydrogen adsorbent in the second housing adsorbs the remaining hydrogen fuel in the tail gas, and the filtered tail gas is discharged through the second air duct. When it is necessary to replace the second housing, start the motor to drive the screw rod to rotate through the meshing of two bevel gears, thereby pushing the limit plate to move up and down. Driven by the cooperation of the linkage structure, the sliding block on the sliding mechanism moves on the limit rod, so that the limit blocks fixedly connected to the upper sliding block are separated outward, thereby loosening the second housing, and the second housing can be easily replaced, solving the problem that the hydrogen fuel in the hydrogen fuel engine is incompletely burned due to impurities during operation, resulting in the remaining hydrogen fuel being discharged into the air, and the air may be polluted when the device detects the tail gas of the hydrogen fuel engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0018] Figure 1 is a schematic structural diagram of a portable detection device for the tail pipe of a hydrogen fuel engine proposed by the present utility model;

[0019] Figure 2 is a partial structural cross-sectional view of the present utility model;

[0020] Figure 3 is Figure 2 an enlarged schematic view of part A in

[0021] Figure 4 is Figure 2 an enlarged schematic view of part B in

[0022] In the figure: 1. Exhaust gas analyzer; 2. Air guide mechanism; 21. Exhaust gas receiving pipe; 22. First exhaust gas delivery pipe; 23. First connector; 24. Filter; 25. Second exhaust gas delivery pipe; 3. Second connector; 4. First air duct; 5. Second air duct; 6. Fixing mechanism; 61. First outer shell; 62. Fixed plate; 63. Motor; 64. Bevel gear; 65. Limiting plate; 66. Linkage structure; 661. First hinge support; 662. Linkage rod; 663. Second hinge support; 67. Lead screw; 68. Sliding mechanism; 681. Limiting block; 682. Sliding block; 683. Limiting rod; 69. Fixed block; 7. Second outer shell; 8. Buffer rubber; 9. Sealing cap; 10. Hydrogen adsorbent. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention. Embodiment 1

[0024] As Figures 1 to 4As shown in the figure, this embodiment proposes a portable detection device for the tail exhaust of a hydrogen fuel engine, including: an exhaust gas analyzer 1. A gas guiding mechanism 2 is arranged on the outer wall of one side of the exhaust gas analyzer 1 for guiding and transporting the exhaust gas to be detected. A second outer shell 7 is arranged above the exhaust gas analyzer 1, and a sealing cap 9 is threadedly connected to the upper end of the second outer shell 7. A hydrogen adsorbent 10 is arranged inside the second outer shell 7. A second connector 3 is arranged at the upper end of the exhaust gas analyzer 1. A first gas pipe 4 is fixedly communicated with the outer wall of one end of the second outer shell 7, and the other end of the first gas pipe 4 is fixedly connected to the second connector 3. A second gas pipe 5 is fixedly communicated with the outer wall of the other end of the second outer shell 7. A fixing mechanism 6 is arranged between the exhaust gas analyzer 1 and the second outer shell 7 for limiting and fixing the second outer shell 7. The fixing mechanism 6 includes a first outer shell 61. The first outer shell 61 is sleeved on the exhaust gas analyzer 1. A fixing block 69 is arranged at the center position of the upper end of the first outer shell 61. A fixing plate 62 is fixedly connected inside the first outer shell 61. A limiting plate 65 is arranged above the fixing plate 62. Two bevel gears 64 are arranged below the fixing plate 62. The bottom of the fixing block 69 is rotatably connected to a lead screw 67, and one end of the lead screw 67 is fixedly connected to one of the bevel gears 64. The lead screw 67 passes through the limiting plate 65 and is rotatably connected to the fixing plate 62, and the lead screw 67 is threadedly connected to the limiting plate 65. A motor 63 is fixedly connected to the bottom end inside the first outer shell 61, and the end of the output shaft of the motor 63 is fixedly connected to another bevel gear 64. The two bevel gears 64 are meshed with each other. It is characterized in that four sliding mechanisms 68 are arranged between the fixing block 69 and the first outer shell 61, and the four sliding mechanisms 68 are annularly arrayed on the fixing block 69.

[0025] Furthermore, the gas guiding mechanism 2 includes a first connector 23. The first connector 23 is fixedly communicated with the outer wall of the exhaust gas analyzer 1, and the first connector 23 is fixedly communicated with a second exhaust gas delivery pipe 25. The other end of the second exhaust gas delivery pipe 25 is fixedly communicated with a filter 24. A tail gas receiving pipe 21 is arranged on one side of the filter 24, and a first exhaust gas delivery pipe 22 is fixedly communicated between the tail gas receiving pipe 21 and the filter 24. The sliding mechanism 68 includes a limiting rod 683. The two ends of the limiting rod 683 are fixedly connected between the first outer shell 61 and the fixing block 69. A sliding block 682 is sleeved on the fixing block 69. A limiting block 681 is fixedly connected to the top of the sliding block 682, and a buffer rubber 8 is installed on the limiting block 681. Four linkage structures 66 are annularly arrayed on the limiting plate 65. The number of the linkage structures 66 is in one-to-one correspondence with the sliding block 682. The linkage structure 66 includes a linkage rod 662. One end of the linkage rod 662 is rotatably connected to a first hinge support 661, and the first hinge support 661 is fixedly connected to the bottom of the sliding block 682. The other end of the linkage rod 662 is rotatably connected to a second hinge support 663, and the second hinge support 663 is fixedly connected to the outer wall of the limiting plate 65.

[0026] Working principle and usage process of the present utility model: Insert the tail gas receiving pipe 21 on the device into the tail exhaust of the hydrogen fuel engine to be detected. The tail gas to be detected passes through the filter 24 on the air guiding mechanism 2 to filter large particle impurities to prevent damage to the device, and then is sent to the tail gas analyzer 1 to detect the components in the tail gas. The detected tail gas enters the second housing 7 through the first air duct 4. The hydrogen adsorbent 10 in the second housing 7 adsorbs the remaining hydrogen fuel in the tail gas, and the filtered tail gas is discharged through the second air duct 5. When it is necessary to replace the second housing 7, start the motor 63. The two bevel gears 64 mesh with each other to drive the lead screw 67 to rotate, thereby pushing the limit plate 65 to move up and down. With the cooperation of the linkage structure 66, the sliding block 682 on the sliding mechanism 6 moves on the limit rod 683, so that the limit block 69 fixed to the upper sliding block 682 separates outward, thereby loosening the second housing 7, and the second housing 7 can be easily replaced.

[0027] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A portable detection device for tail exhaust of a hydrogen fuel engine, comprising: An exhaust gas analyzer (1) is characterized in that an air guide mechanism (2) is provided on an outer wall of one side of the exhaust gas analyzer (1) for guiding and conveying the exhaust gas to be detected, a second shell (7) is provided on the upper side of the exhaust gas analyzer (1), and a sealing cap (9) is threadedly connected to the upper end of the second shell (7), a hydrogen adsorbent (10) is provided inside the second shell (7), a second connector (3) is provided on the upper end of the exhaust gas analyzer (1), a first air guide pipe (4) is fixedly connected to the outer wall of one end of the second shell (7), and the other end of the first air guide pipe (4) is fixedly connected to the second connector (3), and a second air guide pipe (5) is fixedly connected to the outer wall of the other end of the second shell (7), and a fixing mechanism (6) is provided between the exhaust gas analyzer (1) and the second shell (7) for limiting and fixing the second shell (7).

2. A portable detection device for tail exhaust of a hydrogen fuel engine according to claim 1, characterized in that: The fixing mechanism (6) comprises a first housing (61), the first housing (61) being sleeved on the exhaust gas analyzer (1), a fixing block (69) being provided at the center position of the upper end of the first housing (61), and a fixing plate (62) being fixedly connected inside the first housing (61), and a limiting plate (65) being provided on the upper side of the fixing plate (62).

3. A portable detection device for tail exhaust of a hydrogen fuel engine according to claim 2, characterized in that: Two bevel gears (64) are arranged below the fixing plate (62); a screw rod (67) is rotatably connected to the bottom of the fixing block (69); one end of the screw rod (67) is fixedly connected to one of the bevel gears (64); the screw rod (67) passes through the limiting plate (65) and is rotatably connected to the fixing plate (62); and the screw rod (67) and the limiting plate (65) are threadedly connected.

4. A portable detection device for tail exhaust of a hydrogen fuel engine according to claim 2, characterized in that: A motor (63) is fixedly connected to the bottom end of the first housing (61), and another bevel gear (64) is fixedly connected to the end of the output shaft of the motor (63), the two bevel gears (64) are meshed with each other, four sliding mechanisms (68) are arranged between the fixed block (69) and the first housing (61), and the four sliding mechanisms (68) are arranged in a circular array on the fixed block (69).

5. A portable detection device for tail exhaust of a hydrogen fuel engine according to claim 1, characterized in that: The gas guide mechanism (2) comprises a first connector (23), the first connector (23) being fixedly connected to the outer wall of the exhaust gas analyzer (1), and the first connector (23) being fixedly connected to a second exhaust gas delivery pipe (25), the other end of the second exhaust gas delivery pipe (25) being fixedly connected to a filter (24), an exhaust gas receiving pipe (21) being provided on one side of the filter (24), and a first exhaust gas delivery pipe (22) being fixedly connected between the exhaust gas receiving pipe (21) and the filter (24).

6. A portable detection device for tail exhaust of a hydrogen fuel engine according to claim 4, characterized in that: The sliding mechanism (68) comprises a limit rod (683), the two ends of the limit rod (683) are fixedly connected between the first housing (61) and the fixed block (69), the fixed block (69) is sleeved with a sliding block (682), the top of the sliding block (682) is fixedly connected to the limit block (681), and a buffer rubber (8) is installed on the limit block (681).

7. A portable detection device for tail exhaust of a hydrogen fuel engine according to claim 3, characterized in that: The limiting plate (65) annular array has four linkage structures (66), and the number of the linkage structures (66) matches the number of the sliding blocks (682).

8. A portable detection device for tail exhaust of a hydrogen fuel engine according to claim 7, characterized in that: The linkage structure (66) comprises a linkage rod (662), one end of which is rotatably connected to a first hinged support (661), and the first hinged support (661) is fixed to the bottom of the sliding block (682), and the other end of the linkage rod (662) is rotatably connected to a second hinged support (663), and the second hinged support (663) is fixed to the outer wall of the limiting plate (65).

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