KR102377132B1 - Test device of temperature sensor for generating exhaust gas - Google Patents

Abstract

The present invention relates to a temperature sensor inspection device for exhaust gas, which includes a heating unit that discharges exhaust gas, an inspection unit through which the exhaust gas discharged from the heating unit passes and a temperature sensor is installed, and an inspection unit that detects exhaust gas discharged from the heating unit. Including the guidance part that guides the temperature sensor, the temperature sensor can be tested based on the installation environment mounted on the actual vehicle.

Description

Temperature sensor inspection device for exhaust gas {TEST DEVICE OF TEMPERATURE SENSOR FOR GENERATING EXHAUST GAS}

The present invention relates to an exhaust gas temperature sensor inspection device, and more specifically, to an exhaust gas temperature sensor inspection device that can test whether the temperature sensor can withstand thermal shock caused by exhaust gas.

Generally, exhaust gas is generated when a car's engine operates, and this exhaust gas is discharged to the outside of the vehicle through a muffler and smoke reduction device that reduces noise. Meanwhile, in an exhaust gas purification device, a chemical reaction occurs through a catalyst device to purify the exhaust gas, but high temperatures are generated during the catalyst process.

The temperature sensor for exhaust gas is installed at the outlet of the catalyst device and is used to detect the temperature inside the catalyst device and determine whether the catalyst device is overheated.

Conventionally, there is no separate inspection equipment for testing the exhaust gas temperature sensor, so there is a problem in that it is difficult to inspect the exhaust gas temperature sensor. Therefore, there is a need to improve this.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 2008-0041700 (published on May 13, 2008, title of the invention: Vehicle testing device and method).

The present invention was made to improve the above problems, and its purpose is to provide an exhaust gas temperature sensor inspection device that can measure the durability of the exhaust gas temperature sensor while applying thermal vibration.

The temperature sensor inspection device for exhaust gas according to the present invention includes: a heating unit that discharges exhaust gas; an inspection unit through which exhaust gas discharged from the heating unit passes and a temperature sensor is installed; and a guiding part that guides the exhaust gas discharged from the heating part to the inspection part.

The heating unit includes: a first heating unit that discharges exhaust gas; and a second heating unit that discharges exhaust gas at a higher temperature than the exhaust gas discharged from the first heating unit.

The inspection unit includes: a base unit that generates vibration; and a jig part coupled to the base part and on which the temperature sensor is mounted.

The jig part: a jig coupling part coupled to the base part; and a jig tunnel portion formed in the jig coupling portion and having a jig hole portion through which exhaust gas discharged from the heating portion passes.

The jig tunnel portion is formed with an installation hole for mounting the temperature sensor, and a plurality of installation hole portions are formed in the jig tunnel portion.

The inspection unit may further include a heat blocking unit disposed between the base unit and the jig unit and preventing heat from being transferred to the base unit.

The induction part according to the first embodiment of the present invention includes: an induction fixing part disposed between the heating part and the inspection part; A guided moving part that slides on the guided fixed part; an induction pipe part coupled to the induction moving part and guiding any one of exhaust gas discharged from the first heating part and the second heating part to the inspection part; and an induction drive unit coupled to the induction movement unit to reciprocate the induction movement unit.

The induction pipe unit includes: a bypass induction pipe unit mounted on the induction moving unit and guiding exhaust gas discharged from any one of the first heating unit and the second heating unit to bypass the temperature sensor; And it is mounted on the induction moving part and disposed on both sides of the discharge induction pipe part, and guides the exhaust gas discharged from the other one of the first heating unit and the second heating unit so that the exhaust gas passes through the temperature sensor. It is characterized by including a test guide tube.

The temperature sensor inspection device for exhaust gas according to the present invention is characterized by further comprising an exhaust section that discharges exhaust gas that has passed through the induction section and the inspection section.

The guiding part according to the second embodiment of the present invention includes: a wrinkle guiding fixing part disposed between the heating part and the inspection part; A pleat induction pipe part coupled to the pleat induction fixing part and connected to the first heating part and the second heating part respectively to guide exhaust gas; A wrinkle inducing moving part that slides on the wrinkle inducing fixing part and alternately guides the ends of the wrinkle inducing pipe part to the inspection part; and a wrinkle inducing drive unit coupled to the wrinkle inducing moving part and reciprocating the wrinkle inducing moving part.

The wrinkle induction pipe part includes a first wrinkle induction pipe part connected to the first heating unit; and a second wrinkle induction pipe portion connected to the second heating unit, wherein wrinkles are formed in the first wrinkle induction pipe portion and the second wrinkle induction pipe portion.

The guiding part according to the third embodiment of the present invention includes: a valve guiding fixing part disposed between the heating part and the inspection part; And it is supported on the valve induction fixing part, one end is connected to the first heating part and the second heating part, the other end is connected to the inspection part, and discharged from the first heating part and the second heating part. It is characterized by including a valve guide pipe portion that selectively guides the exhaust gas to the inspection portion.

The valve guide pipe portion includes: a first valve guide pipe portion connected to the first heating unit; a first valve exhaust pipe part that communicates with the first valve induction pipe part to discharge exhaust gas; a first valve opening/closing unit that selectively opens and closes the first valve induction pipe unit and the first valve exhaust pipe unit; a second valve induction pipe connected to the second heating unit; a second valve exhaust pipe communicating with the second valve induction pipe to discharge exhaust gas; a second valve opening and closing unit that selectively opens and closes the second valve induction pipe unit and the second valve exhaust pipe unit; and a valve convergence pipe portion having one end connected to the first valve guide pipe portion and the second valve guide pipe portion and the other end connected to the inspection portion.

The exhaust gas temperature sensor inspection device according to the present invention can conduct experiments on a temperature sensor that measures the temperature of the exhaust gas by passing the exhaust gas through the inspection section.

The exhaust gas temperature sensor inspection device according to the present invention is designed to have different temperatures of the exhaust gas discharged through the first heating unit and the second heating unit, thereby enabling thermal shock experiments on the temperature sensor that measures the temperature of the exhaust gas.

In the exhaust gas temperature sensor inspection device according to the present invention, the base generates vibration and transfers the vibration to the jig part on which the temperature sensor is mounted, so that the temperature sensor can be provided with the same installation environment as that installed in the vehicle.

Since the temperature sensor inspection device for exhaust gas according to the present invention is equipped with a plurality of temperature sensors in the jig tunnel portion, simultaneous temperature sensor experiments are possible in various installation environments.

The temperature sensor inspection device for exhaust gas according to the present invention has a heat blocking portion disposed between the base portion and the jig portion, and thus can prevent heat from being transferred to the base portion.

In the exhaust gas temperature sensor inspection device according to the present invention, the induction pipe portion can selectively guide the exhaust gas discharged from the first heating unit and the second heating unit to the inspection unit.

The temperature sensor inspection device for exhaust gas according to the present invention is capable of discharging exhaust gas that has passed through the exhaust section and the inspection section.

1 is a diagram schematically showing a temperature sensor inspection device for exhaust gas according to a first embodiment of the present invention.
Figure 2 is a diagram schematically showing a heating unit in the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention.
Figure 3 is a diagram schematically showing the inspection unit in the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention.
Figure 4 is a diagram schematically showing the guide part in the temperature sensor inspection device for exhaust gas according to the first embodiment of the present invention.
Figure 5 is a diagram schematically showing a state in which exhaust gas discharged from the first heating unit passes through the temperature sensor in the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention.
Figure 6 is a diagram schematically showing the state in which the exhaust gas discharged from the second heating unit passes through the temperature sensor in the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention.
FIG. 7 is a diagram schematically showing a state in which an exhaust unit is added to discharge exhaust gas in FIG. 1.
Figure 8 is a diagram schematically showing the guide part in the temperature sensor inspection device for exhaust gas according to the second embodiment of the present invention.
Figure 9 is a diagram schematically showing the induction part in the temperature sensor inspection device for exhaust gas according to the third embodiment of the present invention.

Hereinafter, an embodiment of a temperature sensor inspection device for exhaust gas according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

1 is a diagram schematically showing a temperature sensor inspection device for exhaust gas according to a first embodiment of the present invention. Referring to FIG. 1, the exhaust gas temperature sensor inspection device 1 according to the first embodiment of the present invention includes a heating unit 10, an inspection unit 20, and an induction unit 30.

The heating unit 10 emits exhaust gas. The heating unit 10 discharges high temperature exhaust gas through self-combustion. These exhaust gases can replace the exhaust gases emitted from vehicles.

The exhaust gas discharged from the heating unit 10 passes through the inspection unit 20. A temperature sensor 99 is installed in the inspection unit 20. The temperature sensor 99 measures the temperature of the high temperature exhaust gas discharged from the heating unit 10.

The guiding unit 30 guides the exhaust gas discharged from the heating unit 10 to the inspection unit 20. That is, the exhaust gas discharged from the heating unit 10 passes through the inspection unit 20 by the guide unit 30, and the temperature sensor 99 measures the temperature of the exhaust gas passing through the inspection unit 20.

Figure 2 is a diagram schematically showing a heating unit in the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention. Referring to Figures 1 and 2, the heating unit 10 according to an embodiment of the present invention includes a first heating unit 11 and a second heating unit 12.

The first heating unit 11 and the second heating unit 12 are respectively mounted on the heating stand 13 and emit exhaust gases of different temperatures. The second heating unit 12 discharges exhaust gas at a higher temperature than the first heating unit 11. For example, the first heating unit 11 may emit exhaust gas of approximately 200°C, and the second heating unit 12 may emit exhaust gas of approximately 1000°C. Due to the temperature difference of the exhaust gas discharged from the first heating unit 11 and the second heating unit 12, thermal shock may be applied to the temperature sensor 99 that measures the temperature of the exhaust gas. Then, the experimental conditions for testing the durability of the temperature sensor 99 can be satisfied.

Figure 3 is a diagram schematically showing the inspection unit in the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention. Referring to Figures 1 and 3, the inspection unit 20 according to an embodiment of the present invention includes a base unit 21 and a jig unit 22.

The base portion 21 is fixed to a fixture such as the ground and generates vibration. The jig part 22 is coupled to the base part 21, and the vibration generated in the base part 21 is transmitted to the jig part 22. Since the temperature sensor 99 is mounted on the jig part 22, vibration of the base part 21 similar to the vibration of a vehicle can be transmitted to the temperature sensor 99.

The jig portion 22 according to an embodiment of the present invention includes a jig coupling portion 221 and a jig tunnel portion 222. The jig coupling portion 221 is coupled to the base portion 21. The jig tunnel portion 222 is formed in the jig coupling portion 221, and the exhaust gas discharged from the heating unit 10 passes through the jig tunnel portion 222. As an example, the jig coupling portion 221 may be bolted to the base portion 21. The jig tunnel portion 222 protrudes from the upper side of the jig coupling portion 221, and has a tunnel shape to form a jig hole portion 225 for passage of exhaust gas.

An installation hole 226 for mounting the temperature sensor 99 is formed in the jig tunnel portion 222. The temperature sensor 99 penetrates the jig tunnel portion 222 and the temperature measuring portion may be located in the jig hole portion 225.

A plurality of installation hole portions 226 are formed in the jig tunnel portion 222. As an example, a plurality of installation hole portions 226 may be formed in the longitudinal direction of the jig tunnel portion 222. The installation hole portion 226 may be formed evenly on the side and upper surfaces of the jig tunnel portion 222.

As the installation hole portion 226 is formed evenly in the jig tunnel portion 222, a plurality of temperature sensors 99 can be measured simultaneously. In addition, as the installation hole portion 226 is formed in various directions of the jig tunnel portion 222, experiments with the temperature sensor 99 arranged at various angles are possible.

The inspection unit 20 according to an embodiment of the present invention may further include a heat blocking unit 23. The heat blocking part 23 is disposed between the base part 21 and the jig part 22 and prevents heat from being transferred to the base part 21. As an example, the heat blocking portion 23 may be made of a non-metallic material that prevents the heat of the jig portion 22 from being transmitted to the base portion 21 even if the temperature of the jig portion 22 increases due to exhaust gas. .

Figure 4 is a diagram schematically showing the induction part in the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention, and Figure 5 is a diagram showing the first exhaust gas temperature sensor inspection device according to the first embodiment of the present invention. It is a diagram schematically showing the state in which the exhaust gas discharged from the heating unit passes through the temperature sensor, and Figure 6 shows the exhaust gas discharged from the second heating unit in the temperature sensor inspection device for exhaust gas according to the first embodiment of the present invention. This is a diagram schematically showing the state of passing through the temperature sensor. Referring to Figure 1 and Figures 4 to 6, the guide part 30 according to an embodiment of the present invention includes a guide fixing part 31, a guide moving part 32, a guide pipe part 33, and a guide drive part. Includes (34).

The induction fixing part 31 is disposed between the heating part 10 and the inspection part 20. As an example, the induction fixing part 31 may be fixed to a fixture such as the ground and placed between the heating stand 13 and the base part 21.

The guided moving part 32 slides on the guided fixed part 31. As an example, the guided moving part 32 is guided by the guided fixed part 31 and can move back and forth in a designated section. The guided moving part 32 may be combined with the guided fixed part 31 and the LM guide.

The induction pipe part 33 is coupled to the induction moving part 31 and guides any one of the exhaust gases discharged from the first heating part 11 and the second heating part 12 to the inspection part 20. That is, as the induction moving part 31 reciprocates, the induction pipe part 33 mounted on the induction moving part 31 selects the exhaust gas discharged from the first heating part 11 and the second heating part 12 to It can be guided to the inspection unit 20.

The induction drive unit 34 is coupled to the induction movement unit 32 and causes the induction movement unit 32 to reciprocate. As an example, the induction drive unit 34 may be a motor fixed to the induction fixing unit 31. When the motor is driven, the motor shaft connected to the motor rotates, and the motor gear formed on the motor shaft may rotate. The motor gear is engaged with the induction moving part 32, and the moving direction of the induction moving part 32 may vary depending on the rotation direction of the motor gear.

The guide pipe portion 33 according to an embodiment of the present invention includes a bypass guide pipe portion 331 and an inspection guide pipe portion 332. The bypass guide pipe unit 331 and the inspection guide pipe unit 332 guide the exhaust gas discharged from the first heating unit 11 or the second heating unit 12 to the inspection unit 20 depending on the position of the guide moving unit 32. can do.

The bypass guide pipe part 331 is mounted on the guide moving part 32 and guides the exhaust gas. The bypass guide pipe portion 331 guides the exhaust gas discharged from either the first heating unit 11 or the second heating unit 12 so that the exhaust gas bypasses the temperature sensor 99.

The inspection guide pipe part 332 is mounted on the guide moving part 32 and is disposed on both sides of the discharge guide pipe part 331. The inspection guide pipe part 332 guides the exhaust gas discharged from the other one of the first heating unit 11 and the second heating unit 12 so that it passes through the temperature sensor 99.

That is, the inspection guide pipe portion 332 is disposed on the right and left sides of the bypass guide pipe portion 331, respectively. When the bypass guide pipe part 331 guides the exhaust gas of the first heating unit 11, the inspection guide pipe part 332 disposed on the right side of the bypass guide pipe part 331 guides the exhaust gas of the second heating unit 12. It can be guided to the inspection department (20). And, when the bypass guide pipe part 331 guides the exhaust gas of the second heating unit 12, the inspection guide pipe part 332 disposed on the left side of the bypass guide pipe part 331 guides the exhaust gas of the first heating part 11. Gas can be guided to the inspection unit 20.

FIG. 7 is a diagram schematically showing a state in which an exhaust unit is added to discharge exhaust gas in FIG. 1. Referring to FIG. 7, the temperature sensor inspection device 1 for exhaust gas according to an embodiment of the present invention may further include an exhaust unit 40. The exhaust unit 40 discharges exhaust gas that has passed through the guide unit 30 and the inspection unit 20. As an example, the exhaust unit 40 may be shaped to cover both sides and the rear of the inspection unit 20. The exhaust unit 40 discharges exhaust gas to the outside and purifies harmful gases to prevent contamination of the experiment site. The exhaust unit 40 discharges the exhaust gas discharged through the bypass induction pipe unit 331 to the outside to prevent the exhaust gas passing through the bypass induction pipe unit 331 from affecting the temperature sensor 99 of the inspection unit 20. can do. The exhaust unit 40 can discharge exhaust gas that has passed through the inspection guide pipe unit 332 and the inspection unit 20 to the outside.

The operation of the exhaust gas temperature sensor inspection device according to the first embodiment of the present invention having the above structure will be described as follows.

A plurality of temperature sensors 99, which are inspection objects, are mounted on the jig tunnel portion 222 of the inspection unit 20. In the above-described state, when the induction moving part 32 is moved by driving the induction driving part 34, the exhaust gas discharged from the first heating part 11 is guided to the inspection induction pipe part 332 and moves through the jig tunnel part 222. passes. At this time, the exhaust gas discharged from the second heating unit 12 is directly guided to the exhaust unit 40 through the bypass induction pipe unit 331 (see FIG. 5).

The exhaust gas discharged from the first heating unit 11 passes through the jig tunnel unit 222, and the temperature sensor 99 mounted on the jig tunnel unit 222 detects the exhaust gas discharged through the first heating unit 11. The temperature of the exhaust gas is measured. At this time, by generating vibration in the base part 21 of the inspection part 20, the temperature sensor 99 can measure the temperature of the exhaust gas in the same mounting environment as that of the vehicle.

After the temperature sensor 99 measures the temperature of the exhaust gas discharged from the first heating unit 11 for a certain period of time, approximately 2 to 5 minutes, the induction drive unit 34 is driven to move the induction movement unit 32. . The exhaust gas discharged from the second heating unit 12 is guided to the inspection induction pipe unit 332 by the moved induction moving unit 32 and passes through the jig tunnel unit 222. At this time, the exhaust gas discharged from the first heating unit 11 is directly guided to the exhaust unit 40 through the bypass induction pipe unit 331 (see FIG. 6).

The exhaust gas discharged from the second heating unit 12 passes through the jig tunnel unit 222, and the temperature sensor 99 mounted on the jig tunnel unit 222 detects the exhaust gas discharged through the second heating unit 12. The temperature of the exhaust gas is measured. At this time, by generating vibration in the base part 21 of the inspection part 20, the temperature sensor 99 can measure the temperature of the exhaust gas in the same mounting environment as that of the vehicle.

Meanwhile, the temperature sensor 99 measures the temperature of the exhaust gas discharged from the second heating unit 12, which has a higher temperature than the first heating unit 11, in addition to the first heating unit 11, thereby preventing thermal shock due to the temperature difference. The durability of the temperature sensor 99 can be tested.

The temperature sensor inspection device for exhaust gas (1) according to an embodiment of the present invention is a temperature sensor (99) that measures the temperature of the exhaust gas by passing the exhaust gas through the inspection unit (20) equipped with the temperature sensor (99). ) can be tested.

The temperature sensor inspection device for exhaust gas (1) according to an embodiment of the present invention designs the temperature of the exhaust gas discharged through the first heating unit (11) and the second heating unit (12) to be different, thereby determining the temperature of the exhaust gas. A thermal shock experiment on the temperature sensor 99 that measures temperature is possible.

In the exhaust gas temperature sensor inspection device 1 according to an embodiment of the present invention, the base part 21 generates vibration and transmits the vibration to the jig part 22 on which the temperature sensor 99 is mounted, thereby detecting the temperature sensor. (99) can be provided with the same installation environment as that installed in the vehicle.

The temperature sensor inspection device for exhaust gas (1) according to an embodiment of the present invention is equipped with a plurality of temperature sensors (99) in the jig tunnel portion (222), so simultaneous temperature sensor (99) experiments can be performed in various installation environments. This is possible.

In the exhaust gas temperature sensor inspection device 1 according to an embodiment of the present invention, the heat blocking part 23 is disposed between the base part 21 and the jig part 22, so heat is transmitted to the base part 21. You can prevent it from happening.

In the exhaust gas temperature sensor inspection device 1 according to an embodiment of the present invention, inspection guide pipe portions 332 are arranged on both sides of one bypass guide pipe portion 331, and the inspection guide pipe portion 332 is moved to The exhaust gas discharged from the first heating unit 11 and the second heating unit 12 can be selectively guided to the inspection unit 20.

The exhaust gas temperature sensor inspection device 1 according to an embodiment of the present invention allows the exhaust unit 40 to discharge exhaust gas that has passed through the guide unit 30 and the inspection unit 20.

Figure 8 is a diagram schematically showing the guide part in the temperature sensor inspection device for exhaust gas according to the second embodiment of the present invention. The configuration of the exhaust gas temperature sensor inspection device 2 according to the second embodiment of the present invention, except for the guide portion 50, is similar to the configuration of the exhaust gas temperature sensor inspection device 1 according to the first embodiment. Therefore, below, the induction unit 50 in the exhaust gas temperature sensor inspection device 2 according to the second embodiment of the present invention will be briefly described.

Referring to FIG. 8, the guiding part 50 according to an embodiment of the present invention includes a wrinkle guiding fixed part 51, a wrinkle guiding pipe part 52, a wrinkle guiding moving part 53, and a wrinkle guiding tool eastern part 54. Includes.

The wrinkle inducing fixing part 51 is disposed between the heating part 10 and the inspection part 20. As an example, the wrinkle inducing fixing part 51 may be fixed to a fixture such as the ground and placed between the heating stand 13 and the base part 21.

The wrinkle guide pipe part 52 is coupled to the wrinkle guide fixing part 51 and is connected to the first heating part 11 and the second heating part 12, respectively, to guide the exhaust gas. As an example, the wrinkle guide pipe part 52 may be coupled to the first heating part 11 and the second heating part 12, respectively, to maintain a sealed state. Due to this, heat loss can be suppressed by blocking exhaust gas leakage between the corrugation guide pipe portion 53 and the first heating portion 11 or the corrugation guide pipe portion 53 and the second heating portion 12.

The wrinkle inducing moving part 53 slides on the wrinkle inducing fixing part 51 and alternately guides the ends of the wrinkle inducing pipe part 52 to the inspection part 20. As an example, the wrinkle inducing moving part 53 is guided by the wrinkle inducing fixing part 51 and can move back and forth in a predetermined section.

The wrinkle inducing drive unit 54 is coupled to the wrinkle inducing moving part 53 and causes the wrinkle inducing moving part 53 to reciprocate. For example, the wrinkle inducing drive part 54 may be a motor fixed to the wrinkle inducing fixing part 51. When the motor is driven, the motor shaft connected to the motor rotates, and the motor gear formed on the motor shaft may rotate. The motor gear is engaged with the wrinkle-guided moving part 52, and the moving direction of the wrinkle-guided moving part 52 may vary depending on the rotation direction of the motor gear.

The wrinkle guide pipe portion 52 according to an embodiment of the present invention includes a first wrinkle guide pipe portion 521 and a second wrinkle guide pipe portion 522. The first wrinkle induction pipe part 521 is connected to the first heating part 11, and the second wrinkle induction pipe part 522 is connected to the second heating part 12. Wrinkles are formed in the first wrinkle guide pipe portion 521 and the second wrinkle guide pipe portion 522. As an example, one end of the first wrinkle inducing pipe portion 521 is coupled to the first heating portion 11, the other end is coupled to the wrinkle inducing moving portion 53, and a wrinkle may be formed in the central portion. The second wrinkle inducing pipe portion 522 has one end coupled to the second heating unit 12, the other end coupled to the wrinkle inducing moving portion 53, and a wrinkle may be formed in the central portion. Due to this, even if one end of the first wrinkle guide pipe part 521 and the second wrinkle guide pipe part 522 is fixed, the other end of them is linked with the wrinkle guide moving part 53 through deformation of the wrinkled shape to determine the exhaust gas discharge location. can be changed.

The operation of the induction unit 50 having the above-described configuration will be briefly described as follows.

One end of the first wrinkle induction pipe portion 521 is coupled to and fixed to the first heating unit 11, and one end of the second wrinkle induction pipe portion 522 is coupled to the second heating unit 12 and remains fixed. do.

In the above-described state, when the end of the first pleat guide pipe portion 521 is disposed to face the inspection portion 20 by driving the wrinkle guide drive eastern portion 54, the first heating portion 11 passes through the first pleat guide pipe portion 521. ) passes through the inspection unit 20. At this time, the exhaust gas discharged from the second heating unit 12 through the second corrugation induction pipe unit 522 bypasses the inspection unit 20 and is discharged to the outside.

On the other hand, when the end of the second pleat guide pipe portion 522 is disposed to face the inspection portion 20 by driving the wrinkle guide portion 54, the second heating portion 12 through the second pleat guide pipe portion 522. The discharged exhaust gas passes through the inspection unit 20. At this time, the exhaust gas discharged from the first heating unit 11 through the first corrugation induction pipe unit 521 bypasses the inspection unit 20 and is discharged to the outside.

Figure 9 is a diagram schematically showing the induction part in the temperature sensor inspection device for exhaust gas according to the third embodiment of the present invention. The configuration of the exhaust gas temperature sensor inspection device 3 according to the third embodiment of the present invention, except for the guide portion 60, is similar to the configuration of the exhaust gas temperature sensor inspection device 1 according to the first embodiment. Therefore, below, the induction unit 60 in the exhaust gas temperature sensor inspection device 3 according to the third embodiment of the present invention will be briefly described.

Referring to FIG. 9, the guide part 60 according to an embodiment of the present invention includes a valve guide fixing part 61 and a valve guide pipe part 62.

The valve guiding fixing part 61 is disposed between the heating part 10 and the inspection part 20. As an example, the valve guiding fixing part 61 may be fixed to a fixture such as the ground and placed between the heating stand 13 and the base part 21.

The valve guide pipe portion 62 is supported on the valve guide fixing portion 61. One end of the valve guide pipe portion 62 is connected to the first heating portion 11 and the second heating portion 12, and the other end is connected to the inspection portion 20. The valve guide pipe unit 62 selectively guides the exhaust gas discharged from the first heating unit 11 and the second heating unit 12 to the inspection unit 20.

The valve guide pipe part 62 according to an embodiment of the present invention includes a first valve guide pipe part 161, a first valve exhaust pipe part 162, a first valve opening and closing part 163, and a second valve guide pipe part ( 261), a second valve exhaust pipe portion 262, a second valve opening/closing portion 263, and a valve convergence pipe portion 361.

One end of the first valve induction pipe portion 161 is coupled to the first heating portion 11, and the coupled portion maintains a sealed state to block exhaust gas leakage. In addition, one end of the second valve induction pipe portion 261 is coupled to the second heating portion 12, and the coupled portion maintains a sealed state to block exhaust gas leakage. Heat loss can be suppressed by blocking exhaust gas leaks.

The first valve exhaust pipe portion 162 is connected to the first valve induction pipe portion 161 and discharges exhaust gas to the outside. And, the second valve exhaust pipe portion 262 is connected to the second valve induction pipe portion 261 and discharges exhaust gas to the outside.

The first valve opening and closing part 163 is built into the first valve induction pipe part 161 and the first valve exhaust pipe part 162, and selectively opens and closes the first valve induction pipe part 161 and the first valve exhaust pipe part 162. do. And, the second valve opening and closing part 263 is built into the second valve induction pipe part 261 and the second valve exhaust pipe part 262, and the second valve induction pipe part 261 and the second valve exhaust pipe part 262 are selectively connected. Open and close with

The valve converging pipe part 361 has one end connected to the first valve guide pipe part 161 and the second valve guide pipe part 261, and the other end is connected to the inspection part 20. The valve converging pipe portion 361 is coupled to the inspection portion 20, and the coupled portion maintains a sealed state to suppress heat loss due to exhaust gas leakage.

The operation of the induction unit 60 having the above-described configuration will be briefly described as follows.

When it is desired to supply the exhaust gas discharged from the first heating unit 11 to the inspection unit 20, the first valve exhaust pipe unit 162 is closed under the control of the first valve opening and closing unit 163, and the second valve opening and closing unit ( The second valve guide pipe portion 261 is closed under the control of 263). Because of this, the exhaust gas discharged from the first heating unit 11 can be guided to the inspection unit 20 through the first valve induction pipe unit 161. And, the exhaust gas discharged from the second heating unit 12 bypasses the inspection unit 20 through the second valve exhaust pipe unit 262 and is discharged to the outside.

Meanwhile, when it is intended to supply the exhaust gas discharged from the second heating unit 12 to the inspection unit 20, the second valve exhaust pipe unit 262 is closed under the control of the second valve opening and closing unit 263, and the first valve is closed. The first valve guide pipe part 161 is closed under the control of the opening and closing part 163. Because of this, the exhaust gas discharged from the second heating unit 12 can be guided to the inspection unit 20 through the second valve induction pipe unit 261. And, the exhaust gas discharged from the first heating unit 11 bypasses the inspection unit 20 through the first valve exhaust pipe unit 162 and is discharged to the outside.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

10: heating unit 11: first heating unit
12: second heating unit 13: heating stand
20: inspection part 21: base part
22: jig part 23: heat blocking part
30: guidance part 31: guidance fixing part
32: Guide moving part 33: Guide pipe part
34: induction drive unit 40: exhaust unit
99: Temperature sensor 221: Jig coupling part
222: jig tunnel section 331: bypass guide pipe section
332: Inspection guide tube

Claims (14)

A heating unit that discharges exhaust gas;
an inspection unit through which exhaust gas discharged from the heating unit passes and a temperature sensor is installed; and
It includes a guiding part that guides the exhaust gas discharged from the heating part to the inspection part,
The inspection department
A base portion that generates vibration; and
A temperature sensor inspection device for exhaust gas, characterized in that it is coupled to the base portion and includes a jig portion on which the temperature sensor is mounted.
delete delete The method of claim 1, wherein the jig part is
A jig coupling portion coupled to the base portion; and
A temperature sensor inspection device for exhaust gas, characterized in that it includes a jig tunnel portion formed in the jig coupling portion and a jig hole portion through which the exhaust gas discharged from the heating portion passes.
According to clause 4,
A temperature sensor inspection device for exhaust gas, characterized in that an installation hole for mounting the temperature sensor is formed in the jig tunnel portion.
According to clause 5,
A temperature sensor inspection device for exhaust gas, characterized in that a plurality of installation hole portions are formed in the jig tunnel portion.
The method of claim 1, wherein the inspection unit
A temperature sensor inspection device for exhaust gas, characterized in that it is disposed between the base portion and the jig portion and further includes a heat blocking portion that prevents heat from being transferred to the base portion.
delete delete According to clause 1,
A temperature sensor inspection device for exhaust gas, characterized in that it further includes an exhaust unit that discharges exhaust gas that has passed the induction unit and the inspection unit.
delete delete delete delete

Images