Engine tail gas detection equipment

Abstract

The utility model discloses an engine tail gas detection device which comprises an engine sampling pipe and a tail gas detection device, and further comprises a gas transmission pipe and a condensate water collecting pipe, one end of the engine sampling pipe is connected with an engine, and the other end of the engine sampling pipe is connected with the gas inlet end of the gas transmission pipe. The gas outlet end of the gas transmission pipe is connected with the tail gas detection device, the lower side face of the gas transmission pipe is provided with an opening and communicated with the upper end of the condensate water collecting pipe, and the condensate water collecting pipe extends downwards. In the working process, generated condensate water flows into the condensate water collecting pipe, the condensate water in the gas transmission pipe is discharged by arranging the condensate water collecting pipe, smoothness of the gas transmission pipe is guaranteed, blockage of the condensate water is avoided, the detection accuracy is guaranteed, the structure is simple, and machining and mounting are convenient.

Description

Technical Field

[0001] This utility model relates to the field of engine testing, and in particular to an engine exhaust gas testing device. Background Technology

[0002] As a crucial power source, engines are widely used in various technological fields, including transportation. Engines generate high-pressure gas by burning chemical fuels, which in turn drives pistons to propel equipment. During combustion, exhaust gases are produced. To meet energy conservation and emission reduction requirements, these exhaust gases need to be monitored to ensure complete combustion and proper removal of harmful substances.

[0003] In existing technology, the engine is connected to the exhaust gas detection device via a sampling pipe, and the exhaust gas generated by the engine is directly emitted into the exhaust gas detection device for analysis and detection. However, during engine exhaust gas detection, condensation occurs inside the sampling pipe, causing it to become clogged and resulting in the inability to collect exhaust gas, thus affecting the accuracy of the exhaust gas detection data.

[0004] Therefore, how to provide an engine exhaust gas testing device that avoids interference from condensate water is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an engine exhaust gas testing device that discharges condensate from the gas transmission pipe by setting up a condensate collection pipe, ensuring unobstructed gas transmission pipeline, avoiding condensate blockage, and ensuring testing accuracy.

[0006] To solve the above-mentioned technical problems, this utility model provides an engine exhaust gas detection device, including an engine sampling tube and an exhaust gas detection device, as well as a gas transmission tube and a condensate collection tube. One end of the engine sampling tube is connected to the engine, and the other end of the engine sampling tube is connected to the inlet end of the gas transmission tube. The outlet end of the gas transmission tube is connected to the exhaust gas detection device. An opening is provided on the lower side of the gas transmission tube and communicates with the upper end of the condensate collection tube, which extends downward.

[0007] Preferably, the gas transmission pipe is arranged horizontally, and the condensate collection pipe is arranged vertically.

[0008] Preferably, the lower end of the condensate collection pipe is connected to a water storage pipe.

[0009] Preferably, it includes two condensate collection pipes arranged side by side.

[0010] Preferably, the upper ends of the two condensate collection pipes are close to the inlet and outlet ends of the gas transmission pipe, respectively.

[0011] Preferably, the two condensate collection pipes are of the same length, and the lower ends of the two condensate collection pipes are respectively connected to the two ends of the water storage pipe, which is arranged horizontally.

[0012] Preferably, the lower side of the water storage pipe is provided with a drain outlet and a drain valve.

[0013] Preferably, a switch valve is provided at the upper end of the condensate collection pipe.

[0014] Preferably, a humidity detector is installed inside the gas transmission pipe, and the controller controls the opening and closing of the switching valve based on the detection result of the humidity detector.

[0015] Preferably, a condensation guide plate is provided inside the gas transmission pipe. The upper end of the condensation guide plate is connected to the upper side of the inner wall of the gas transmission pipe, and there is a channel between the lower end of the condensation guide plate and the lower side of the inner wall of the gas transmission pipe. The lower end of the condensation guide plate faces the opening on the lower side of the gas transmission pipe, and the lower end of the condensation guide plate is inclined forward along the gas transmission direction.

[0016] This utility model provides an engine exhaust gas detection device, including an engine sampling tube and an exhaust gas detection device, as well as a gas transmission tube and a condensate collection tube. One end of the engine sampling tube is connected to the engine, and the other end of the engine sampling tube is connected to the inlet end of the gas transmission tube. The outlet end of the gas transmission tube is connected to the exhaust gas detection device. An opening is provided on the lower side of the gas transmission tube and connects to the upper end of the condensate collection tube, which extends downward.

[0017] During operation, the generated condensate flows into the condensate collection pipe. By setting up the condensate collection pipe, the condensate in the gas transmission pipe is discharged, ensuring the smooth flow of the gas transmission pipeline, avoiding condensate blockage, ensuring the accuracy of the test, and the structure is simple and easy to process and install. Attached Figure Description

[0018] Figure 1 A schematic diagram of a specific embodiment of the engine exhaust gas detection device provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the condenser guide plate in one specific embodiment of the engine exhaust gas detection equipment provided by this utility model.

[0020] The components include: engine sampling pipe 1, exhaust gas detection device 2, gas transmission pipe 3, condensate collection pipe 4, water storage pipe 5, and condensate guide plate 6. Detailed Implementation

[0021] The core of this utility model is to provide an engine exhaust gas detection device. By setting up a condensate collection pipe, the condensate in the gas transmission pipe is discharged, ensuring the smooth flow of the gas transmission pipeline, avoiding condensate blockage, and ensuring detection accuracy.

[0022] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Please refer to Figures 1 to 2 , Figure 1 A schematic diagram of a specific embodiment of the engine exhaust gas detection device provided by this utility model; Figure 2 This is a schematic diagram of the structure of the condenser guide plate in one specific embodiment of the engine exhaust gas detection equipment provided by this utility model.

[0024] This utility model provides an engine exhaust gas detection device, including an engine sampling pipe 1 and an exhaust gas detection device 2, as well as a gas transmission pipe 3 and a condensate collection pipe 4. One end of the engine sampling pipe 1 is connected to the engine, and the other end of the engine sampling pipe 1 is connected to the inlet end of the gas transmission pipe 3. The outlet end of the gas transmission pipe 3 is connected to the exhaust gas detection device 2. An opening is provided on the lower side of the gas transmission pipe 3, which connects to the upper end of the condensate collection pipe 4, which extends downwards. To ensure stable connection and easy disassembly, pipe connectors are provided at both ends of the gas transmission pipe 3, and locking nuts and other components are provided.

[0025] During operation, the exhaust gas from the engine first reaches the engine sampling pipe 1, then enters the gas transmission pipe 3, and finally reaches the exhaust gas detection device 2. During the exhaust gas transmission process, the condensate formed reaches the lower opening of the gas transmission pipe 3 and flows into the condensate collection pipe 4. By setting up the condensate collection pipe 4, the condensate in the gas transmission pipe 3 is discharged, ensuring the smooth flow of the gas transmission pipeline, avoiding condensate blockage, ensuring detection accuracy, and the structure is simple and easy to process and install.

[0026] Specifically, the gas transmission pipe 3 is arranged horizontally, and the condensate collection pipe 4 is arranged vertically. Furthermore, to avoid difficulties in leveling during actual use, the gas transmission pipe 3 can be appropriately tilted, and the tilting direction can be selected according to the position of the condensate collection pipe 4. When the condensate collection pipe 4 is close to the gas inlet end of the gas transmission pipe 3, the gas inlet end of the gas transmission pipe 3 is tilted downwards; when the condensate collection pipe 4 is close to the gas outlet end of the gas transmission pipe 3, the gas outlet end of the gas transmission pipe 3 is tilted downwards. This allows condensate to flow quickly into the condensate collection pipe 4, preventing it from accumulating inside the gas transmission pipe 3.

[0027] To ensure a clean environment, the lower end of the condensate collection pipe 4 is connected to a water storage pipe 5. The condensate collected by the condensate collection pipe 4 is temporarily stored in the water storage pipe 5 for centralized discharge.

[0028] The engine exhaust gas detection device provided in this specific embodiment includes two condensate collection pipes 4 arranged side by side. The upper ends of the two condensate collection pipes 4 are respectively close to the inlet and outlet ends of the gas transmission pipe 3. Preferably, the two condensate collection pipes 4 are of the same length, and the lower ends of the two condensate collection pipes 4 are respectively connected to the two ends of a water storage pipe 5, which is arranged horizontally to form a rectangular frame structure. The condensate generated at both the inlet and outlet ends can be collected into the water storage pipe 5.

[0029] To connect the various pipes, a T-junction can be installed at the connection point to connect each pipe. Alternatively, the gas transmission pipe 3, the two condensate collection pipes 4, and the water storage pipe 5 can be integrally molded for easy installation and replacement.

[0030] An automated control system can also be set up. A drain outlet and a drain valve are provided on the lower side of the water storage pipe 5. A switch valve is provided at the upper end of the condensate collection pipe 4. A humidity detector is provided in the gas transmission pipe 3. A liquid level detector is provided in the water storage pipe 5. When the humidity changes, the controller controls the opening and closing of the switch valve according to the detection result of the humidity detector, so that the condensate can flow out smoothly. When the liquid level in the water storage pipe 5 is too high, the drain valve is controlled to open to achieve centralized drainage.

[0031] Based on the engine exhaust gas detection equipment provided in the above-described specific embodiments, a condensation guide plate 6 is provided inside the gas transmission pipe 3. The upper end of the condensation guide plate 6 is connected to the upper side of the inner wall of the gas transmission pipe 3, and a channel is formed between the lower end of the condensation guide plate 6 and the lower side of the inner wall of the gas transmission pipe 3. The lower end of the condensation guide plate 6 faces the opening on the lower side of the gas transmission pipe 3, and the lower end of the condensation guide plate 6 is inclined forward along the gas transmission direction. This allows condensate to condense quickly above the condensate collection pipe 4 and flow smoothly into the condensate collection pipe 4. The condensation guide plate 6 can be a solid plate or a mesh plate to facilitate the smooth passage of gas.

[0032] The engine exhaust gas detection device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An engine exhaust gas detection apparatus comprising an engine sampling pipe (1) and an exhaust gas detection device (2), characterized in that, The engine sampling pipe (1) is connected with an engine at one end, and connected with the gas transmission pipe (3) at the other end.

2. The engine exhaust detection apparatus according to claim 1, characterized by, The gas transmission pipe (3) is horizontally arranged, and the condensate water collecting pipe (4) is vertically arranged.

3. The engine exhaust detection apparatus according to claim 2, characterized by, The condensate water collecting pipe (4) is connected with a water storage pipe (5) at the lower end.

4. The engine exhaust detection apparatus according to claim 3, characterized by Two condensate water collecting pipes (4) are arranged side by side.

5. The engine exhaust detection apparatus according to claim 4, characterized by The upper ends of the two condensate water collecting pipes (4) are close to the gas inlet end and the gas outlet end of the gas transmission pipe (3) respectively.

6. The engine exhaust detection apparatus according to claim 5, characterized by The two condensate water collecting pipes (4) have the same length, and the lower ends of the two condensate water collecting pipes (4) are connected with the two ends of the water storage pipe (5) respectively.

7. The engine exhaust detection apparatus according to claim 6, characterized by The water storage pipe (5) is horizontally arranged.

8. The engine exhaust detection apparatus according to claim 1, characterized by, The lower side of the water storage pipe (5) is provided with a drain port and a drain valve.

9. The engine exhaust detection apparatus according to claim 8, characterized by The upper end of the condensate water collecting pipe (4) is provided with a switch valve.

10. The engine exhaust detection apparatus according to any one of claims 1 to 9, characterized by The gas transmission pipe (3) is provided with a humidity detector, and the controller controls the opening and closing of the switch valve according to the detection result of the humidity detector. The gas transmission pipe (3) is provided with a condensation flow guide plate (6), the upper end of the condensation flow guide plate (6) is connected with the upper side of the inner wall of the gas transmission pipe (3), the lower end of the condensation flow guide plate (6) has a passage with the lower side of the inner wall of the gas transmission pipe (3), and the lower end of the condensation flow guide plate (6) is inclined forward along the gas transmission direction.

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