Performance detection system for automobile exhaust purifier

Abstract

The utility model relates to the technical field of tail gas purifier detection equipment, in particular to an automobile tail gas purifier performance detection system, which comprises an automobile tail gas purifier, two ends of the automobile tail gas purifier are respectively connected with an air inlet pipe and an exhaust pipe, and the air inlet pipe is connected with an exhaust manifold of an engine; the detection assembly comprises a connecting mechanism and a sensor mechanism; and the heat dissipation assembly comprises a heat dissipation pipe, an air cooling mechanism and an adjusting mechanism, the heat dissipation pipe is used for conducting heat dissipation on the connecting mechanism, the air cooling mechanism is used for conducting air cooling heat dissipation on the heat dissipation pipe, and the adjusting mechanism is used for adjusting the heat dissipation position of the air cooling mechanism. According to the utility model, the air cooling mechanism is driven by the adjusting mechanism to carry out continuous heat dissipation on the heat dissipation pipe and the connecting plate, so that the generation amount of nitrogen oxides or other substances can be effectively prevented from being increased due to overhigh temperature during testing, the experimental result detected by the device is more fit with the actual use condition, and the accuracy is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of exhaust gas purifier testing equipment, specifically a performance testing system for automotive exhaust gas purifiers. Background Technology

[0002] With the rapid growth of car ownership, exhaust emissions have become one of the main sources of urban air pollution. Harmful substances contained in these emissions, such as nitrogen oxides, carbon monoxide, and particulate matter, seriously threaten human health and the ecological environment. Therefore, developing an accurate and efficient performance testing system for automotive exhaust purifiers is of great significance for ensuring purifier quality, verifying their purification effects in actual use, and promoting the green development of the automotive industry.

[0003] During exhaust emission testing, the internal components of the exhaust purifier and detection system generate a lot of heat due to continuous operation. If heat is not dissipated in a timely and effective manner, the high temperature may cause certain components in the exhaust gas to undergo chemical reactions, leading to errors in the detection accuracy of nitrogen oxides. At the same time, the high temperature will also affect the service life of the detection sensor. Utility Model Content

[0004] The purpose of this invention is to provide a performance testing system for automotive exhaust purifiers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A performance testing system for automotive exhaust purifiers, comprising:

[0007] An automotive exhaust purifier, wherein an intake pipe and an exhaust pipe are respectively connected to both ends of the automotive exhaust purifier, and the intake pipe is connected to the exhaust manifold of the engine.

[0008] The detection component includes a connecting mechanism and a sensor mechanism. The connecting mechanism is provided in two sets, which are respectively connected to the intake pipe and the exhaust pipe. Each connecting mechanism is used to connect the sensor mechanism to the intake pipe and the exhaust pipe respectively. The sensor mechanism is used to detect the performance of the exhaust gas.

[0009] A heat dissipation assembly includes a heat dissipation pipe, a cooling mechanism, and an adjustment mechanism. The heat dissipation pipe is used to dissipate heat from the connecting mechanism, the cooling mechanism is used to cool the heat dissipation pipe, and the adjustment mechanism is used to adjust the heat dissipation position of the cooling mechanism.

[0010] Preferably, the exhaust pipe is connected to a discharge pipe.

[0011] Preferably, the connecting mechanism includes an opening valve, a connecting plate, and a mounting plate. The opening valve is located at the bottom of the connecting plate, the connecting plate is connected to a plurality of heat dissipation pipes, and the heat dissipation pipes are connected to the mounting plate.

[0012] Preferably, the sensor mechanism includes a detection cylinder, an oxygen sensor, a carbon monoxide sensor, a nitric oxide sensor, a nitrogen dioxide sensor, a fine particulate matter sensor, and an ozone sensor. The detection cylinder is connected to the mounting plate. The oxygen sensor, the carbon monoxide sensor, the nitric oxide sensor, the nitrogen dioxide sensor, the fine particulate matter sensor, and the ozone sensor are all disposed in the detection cylinder. The detection cylinder is also connected to an emission pipe.

[0013] Preferably, the air-cooling mechanism includes a bracket, a mounting bracket, and a plurality of cooling fans. The bracket is connected to the mounting plate, the mounting bracket is disposed on the bracket, the cooling fans are disposed on the mounting bracket, and the adjustment mechanism is used to adjust the position on the mounting bracket.

[0014] Preferably, four brackets are provided, and the four brackets are arranged around the mounting plate.

[0015] Preferably, the adjustment mechanism includes a movable push rod and an electromagnetic switch. The two ends of the movable push rod are respectively connected to the bracket and the mounting frame. The movable push rod is used to drive the mounting frame to move along the bracket. The electromagnetic switch is disposed on both sides of the bracket. The electromagnetic switch is used to limit the mounting frame during heat dissipation.

[0016] Preferably, the connecting plate has heat dissipation holes. When the movable push rod drives the mounting bracket to move to the bottom of the bracket, the cooling fan dissipates heat from the connecting plate through the heat dissipation holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this utility model uses an adjustment mechanism to drive a cooling mechanism to continuously dissipate heat from the heat dissipation pipe and connecting plate, which can effectively prevent excessively high temperatures during testing from causing nitrogen oxides (NOx) to form. x The increased generation of substances such as ) or other substances makes the experimental results detected by this invention fit the actual operating conditions better and the accuracy higher. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the heat dissipation component structure of this utility model.

[0020] In the diagram: 1. Automotive exhaust purifier, 2. Intake pipe, 3. Exhaust pipe, 4. Cooling pipe, 5. Opening valve, 6. Connecting plate, 7. Mounting plate, 8. Detection cylinder, 9. Oxygen sensor, 10. Carbon monoxide sensor, 11. Nitric oxide sensor, 12. Nitrogen dioxide sensor, 13. Fine particulate matter sensor, 14. Ozone sensor, 15. Bracket, 16. Mounting bracket, 17. Cooling fan, 18. Moving push rod, 19. Electromagnetic switch, 20. Heat dissipation hole, 21. Emission pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-2 This utility model provides a technical solution:

[0023] A performance testing system for an automotive exhaust purifier, as per the instruction manual. Figure 1 As shown, it includes:

[0024] The vehicle exhaust purifier 1 is used to purify the vehicle exhaust gas discharged from the exhaust manifold. The vehicle exhaust purifier 1 is connected to an intake pipe 2 and an exhaust pipe 3 at both ends. Pressure transmitters are installed on both the intake pipe 2 and the exhaust pipe 3. The intake pipe 2 is connected to the exhaust manifold of the engine (not shown in the attached drawings of the specification); the exhaust pipe 3 is connected to an exhaust pipe 21. In this embodiment, the exhaust pipe 21 is used to discharge the exhaust gas detected by the sensor into an exhaust gas cleaning device (such as a particulate filter). The exhaust gas cleaning device is prior art and will not be described in detail here.

[0025] The detection component includes a connecting mechanism and a sensor mechanism. There are two sets of connecting mechanisms, which are respectively connected to the intake pipe 2 and the exhaust pipe 3. Therefore, the sensor mechanism can detect the exhaust gas before and after the car exhaust purifier 1. By comparing the two detection results, the purification effect of the car exhaust purifier 1 on the car exhaust gas can be detected. Each connecting mechanism is used to connect the sensor mechanism to the intake pipe 2 and the exhaust pipe 3 respectively. The sensor mechanism is used to detect the performance of the exhaust gas.

[0026] The heat dissipation assembly includes a heat pipe 4, an air cooling mechanism, and an adjustment mechanism. The heat pipe 4 is made of stainless steel and is used to dissipate heat from the connecting mechanism. The air cooling mechanism is used to cool the heat pipe 4. The adjustment mechanism is used to adjust the heat dissipation position of the air cooling mechanism.

[0027] The connection mechanism includes an opening valve 5, a connecting plate 6, and a mounting plate 7. The opening valve 5 is located at the bottom of the connecting plate 6 and is used to connect the connecting plate 6 to the intake pipe 2 or the exhaust pipe 3. The connecting plate 6 is connected to several heat dissipation pipes 4, which are used to deliver exhaust gas to the sensor mechanism. The heat dissipation pipes 4 are connected to the mounting plate 7.

[0028] The sensor mechanism includes a detection cylinder 8, an oxygen sensor 9, a carbon monoxide sensor 10, a nitric oxide sensor 11, a nitrogen dioxide sensor 12, a fine particulate matter sensor 13, and an ozone sensor 14. One end of the detection cylinder 8 is connected to the mounting plate 7. The oxygen sensor 9, carbon monoxide sensor 10, nitric oxide sensor 11, nitrogen dioxide sensor 12, fine particulate matter sensor 13, and ozone sensor 14 are all located in the detection cylinder 8. The detection cylinder 8 is also connected to an exhaust pipe 21. The oxygen sensor 9, carbon monoxide sensor 10, nitric oxide sensor 11, nitrogen dioxide sensor 12, fine particulate matter sensor 13, and ozone sensor 14 are used to detect the oxygen concentration, carbon monoxide concentration, nitric oxide concentration, nitrogen dioxide concentration, fine particulate matter concentration, and ozone concentration in the exhaust gas, respectively. The oxygen sensor 9, carbon monoxide sensor 10, nitric oxide sensor 11, nitrogen dioxide sensor 12, fine particulate matter sensor 13, and ozone sensor 14 are all controlled by a data acquisition controller.

[0029] The air-cooling mechanism includes a bracket 15, a mounting bracket 16, and several cooling fans 17. The bracket 15 is used to install the movable push rod 18, the electromagnetic switch 19, and the bracket 15. One end of the bracket 15 is fixedly connected to the mounting plate 7. The mounting bracket 16 is set on the bracket 15. The cooling fans 17 are fixedly connected to the mounting bracket 16. The cooling fans 17 are used to dissipate heat from the heat pipe 4 and the connecting plate 6. The adjustment mechanism is used to adjust the position on the mounting bracket 16.

[0030] There are four brackets 15, which are arranged around the mounting plate 7. Therefore, heat dissipation can be carried out on the heat pipe 4 and the connecting plate 6 from different directions, so as to avoid the uneven temperature of the heat pipe 4 and the connecting plate 6 from affecting the test results.

[0031] The adjustment mechanism includes a movable push rod 18 and an electromagnetic switch 19. The movable push rod 18 is an electro-hydraulic push rod, with its two ends fixedly connected to the bracket 15 and the mounting frame 16, respectively. The movable push rod 18 is used to drive the mounting frame 16 to move along the bracket 15. The electromagnetic switch 19 is located on both sides of the bracket 15. The electromagnetic switch 19 is used to limit the mounting frame 16 during heat dissipation. The electromagnetic switch 19 can be remotely controlled. The electromagnetic switch 19 is used to support the mounting frame 16 during use to prevent the mounting frame 16 from falling during use.

[0032] The connecting plate 6 has heat dissipation holes 20, which are used to connect the inside of the connecting plate 6 with the outside. When the moving push rod 18 drives the mounting bracket 16 to the bottom of the bracket 15, the cooling fan 17 dissipates heat from the connecting plate 6 through the heat dissipation holes 20.

[0033] Working principle: When installing the heat dissipation components, the cooling fan 17 is installed on the mounting bracket 16, and then the mounting bracket 16 is installed on the movable push rod 18. Before use, the intake pipe 2 is connected to the exhaust manifold of the car engine, and the exhaust pipe 3 is connected to the exhaust pipe 21. When starting the experiment, the car engine is started and warmed up. After warming up, the opening valve 5 connected to the intake pipe 2 is opened. At this time, the exhaust gas in the intake pipe 2 enters the radiator pipe 4 through the connecting plate 6 and then enters the detection cylinder 8 above the intake pipe 2 for testing. After the test is completed, the valve 5 is closed. The opening valve 5 located on the intake pipe 2 is closed, and the opening valve 5 located on the exhaust pipe 3 is opened. At this time, the exhaust gas purified by the car exhaust gas purifier 1 enters the heat dissipation pipe 4 through the connecting plate 6 and then enters the detection cylinder 8 above the exhaust pipe 3 for testing. During the test, the cooling fan 17 will be started, and the moving push rod 18 will drive the mounting bracket 16 to move up and down, thereby driving the cooling fan 17 to dissipate heat from all directions on the heat dissipation pipe 4. When in use, it is necessary to ensure that the cooling fan 17 on one side is always at the bottom of the bracket 15 to dissipate heat from the connecting plate 6.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A performance testing system for automotive exhaust purifiers, characterized in that, include: An automotive exhaust purifier, wherein an intake pipe and an exhaust pipe are respectively connected to both ends of the automotive exhaust purifier, and the intake pipe is connected to the exhaust manifold of the engine. The detection component includes a connecting mechanism and a sensor mechanism. The connecting mechanism is provided in two sets, which are respectively connected to the intake pipe and the exhaust pipe. Each connecting mechanism is used to connect the sensor mechanism to the intake pipe and the exhaust pipe respectively. The sensor mechanism is used to detect the performance of the exhaust gas. A heat dissipation assembly includes a heat dissipation pipe, a cooling mechanism, and an adjustment mechanism. The heat dissipation pipe is used to dissipate heat from the connecting mechanism, the cooling mechanism is used to cool the heat dissipation pipe, and the adjustment mechanism is used to adjust the heat dissipation position of the cooling mechanism.

2. The automotive exhaust gas purifier performance testing system according to claim 1, characterized in that: The exhaust pipe is connected to a discharge pipe.

3. The automotive exhaust gas purifier performance testing system according to claim 2, characterized in that: The connecting mechanism includes an opening valve, a connecting plate, and a mounting plate. The opening valve is located at the bottom of the connecting plate. The connecting plate is connected to a plurality of heat dissipation pipes, and the heat dissipation pipes are connected to the mounting plate.

4. The automotive exhaust gas purifier performance testing system according to claim 3, characterized in that: The sensor mechanism includes a detection cylinder, an oxygen sensor, a carbon monoxide sensor, a nitric oxide sensor, a nitrogen dioxide sensor, a fine particulate matter sensor, and an ozone sensor. The detection cylinder is connected to the mounting plate. The oxygen sensor, the carbon monoxide sensor, the nitric oxide sensor, the nitrogen dioxide sensor, the fine particulate matter sensor, and the ozone sensor are all located in the detection cylinder. The detection cylinder is also connected to an emission pipe.

5. The automotive exhaust gas purifier performance testing system according to claim 4, characterized in that: The air-cooling mechanism includes a bracket, a mounting bracket, and several cooling fans. The bracket is connected to the mounting plate, the mounting bracket is disposed on the bracket, the cooling fans are disposed on the mounting bracket, and the adjustment mechanism is used to adjust the position on the mounting bracket.

6. The automotive exhaust gas purifier performance testing system according to claim 5, characterized in that: The bracket is provided in four parts, which are arranged around the mounting plate.

7. The automotive exhaust gas purifier performance testing system according to claim 6, characterized in that: The adjustment mechanism includes a movable push rod and an electromagnetic switch. The two ends of the movable push rod are respectively connected to the bracket and the mounting frame. The movable push rod is used to drive the mounting frame to move along the bracket. The electromagnetic switch is disposed on both sides of the bracket. The electromagnetic switch is used to limit the mounting frame during heat dissipation.

8. The automotive exhaust gas purifier performance testing system according to claim 7, characterized in that: The connecting plate has heat dissipation holes. When the movable push rod drives the mounting bracket to move to the bottom of the support, the cooling fan dissipates heat from the connecting plate through the heat dissipation holes.

Images