CN-121977967-A - Detection device and detection method for volatile gaseous pollutants of tire

CN121977967ACN 121977967 ACN121977967 ACN 121977967ACN-121977967-A

Abstract

The invention discloses a device and a method for detecting volatile gaseous pollutants of a tire, which solve the problems that the detection of the gaseous pollutants in the prior art is not aimed at a single object of the tire and the simulation of the real environment of the tire cannot be realized, and have the beneficial effects of singly realizing the quantitative measurement of the volatile gaseous pollutants of the tire; the background environment simulation unit is connected with the main control unit, the background environment simulation unit is supported by the sealing cover or the workbench, the background environment simulation unit can continuously introduce simulation gas into the sealing cover, can simulate sunlight, can heat and cool and can release moisture, and the main control unit stores a background gas component change curve and a temperature change curve to control the action of the background environment simulation unit.

Inventors

LI JIACHEN
XU HUALONG
HU JUN
MA YI
TANG YONGHONG
TANG XIUYUN
Xiang zhuang
LIU MING

Assignees

中国汽车工程研究院股份有限公司

Dates

Publication Date: 20260505
Application Date: 20251212

Claims (9)

1. A device for detecting volatile gaseous pollutants of a tyre, comprising: The workbench is provided with a supporting frame, the supporting frame can detachably support the tire, the tire is covered by the sealing cover and is in sealing connection with the workbench, and the workbench is provided with a main control unit; The background environment simulation unit is connected with the main control unit, the background environment simulation unit is supported by the sealing cover or the workbench, different simulation gases can be introduced into the sealing cover in real time to adjust the gas components in the background environment, the background environment simulation unit can simulate sunlight, can release moisture and can release hot gas and cold gas, and a background gas component change curve, a temperature change curve, a humidity change curve and a sunlight intensity change curve are stored in the main control unit so as to control the action of the background environment simulation unit; the monitoring unit is connected with the main control unit to acquire the background gas component information, the temperature information and the humidity information in the sealed cover; The sampling unit is connected with the main control unit and comprises a sampling tube, and the sampling tube is detachably connected with the sealing cover so that gas in the sealing cover enters the sealing tube.
2. The device for detecting the volatile gaseous pollutants in a tyre according to claim 1, wherein the background gas composition variation curve is determined according to the variation of the gas composition in different areas and situations; the humidity change curve is determined according to the temperature change in different areas and situations; The humidity change curve is determined according to the changes of the air humidity in different areas and situations; and the sunlight intensity change curve is determined according to the sunlight intensity change in different areas and situations.
3. The device for detecting the volatile gaseous pollutants in a tire according to claim 1, wherein the monitoring unit comprises a background gas component analyzer, a temperature sensor, a humidity sensor and a sunlight intensity sensor which are arranged in the sealing cover.
4. The device for detecting the volatile gaseous pollutants in the tire according to claim 1, wherein the background environment simulation unit comprises a vacuumizing component arranged in the sealed cover, and further comprises an air supply source which is communicated with the inside of the sealed cover; The gas supply sources comprise a plurality of gas sources, and the gas stored in different gas supply sources is different; The monitoring unit also comprises a flowmeter arranged between the air supply source and the sealing cover.
5. The apparatus for detecting volatile gaseous pollutants of a tire according to claim 1, wherein the background simulation unit further comprises a solar simulator, a heating and cooling air conditioner and a humidifier, and each component of the background simulation unit is installed inside the top side of the sealing cover.
6. A tyre volatile gaseous pollutant detecting device according to claim 3, in which the background gas component analyzer, the temperature sensor and the humidity sensor of the monitoring unit are all mounted on one side of the tyre support frame.
7. The device for detecting the volatile gaseous pollutants in the tire according to claim 1, wherein the supporting frame is a supporting column, a notch is formed in the top of the supporting column, a supporting shaft penetrates through the tire, and the supporting shaft is detachably mounted at the notch of the supporting column.
8. The device for detecting the volatile gaseous pollutants in the tire according to claim 1, wherein a switch door is arranged on the side part of the sealing cover, the switch door can be opened relative to the sealing cover, and a sealing strip is arranged on the side part of the switch door; and a circulating fan is arranged in the sealing cover.
9. A test method of a tire volatile gaseous contaminant detection device according to claims 1-8, comprising the following: Supporting the tire by a supporting frame, and carrying out static volatilization on the tire in a sealing cover; Respectively setting a background gas component change curve, a sunlight intensity curve, a temperature change curve and a humidity change curve which change with time according to different areas and use scenes; Continuously introducing simulated gas into the sealed cover by a background environment simulation unit, simulating sunlight and/or heating and refrigerating the gas in the sealed cover and/or releasing moisture into the sealed cover; The monitoring unit acquires the background gas component information, the temperature information and the humidity information in the sealed cover and sends the information to the main control unit; The main control unit controls the action of the background environment simulation unit according to the information acquired by the monitoring unit and through the background gas component change curve, the temperature change curve and the humidity change curve stored in the main control unit; after the set time, the sampling unit extracts a set amount of gas from the sealed cover; The method comprises the steps of quantitatively measuring gaseous pollutants in a sealing tube through detection equipment to obtain the gaseous pollutant content of the sampling tube, and obtaining the total amount of the volatilized gaseous pollutants in the set time of the tire according to the gaseous pollutant content of the sampling tube, the volume of a sealing cover and the volume of the sampling tube.

Description

Detection device and detection method for volatile gaseous pollutants of tire Technical Field The invention relates to the field of detection of volatile gaseous pollutants of tires, in particular to a detection device and a detection method of volatile gaseous pollutants of tires. Background The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. With the annual increase of the occupancy of new energy vehicles and the continuous tightening of the tail gas and evaporative emission standards of motor vehicles, the harmful gaseous pollutants emitted by tail gas and fuel oil systems are effectively controlled. Gaseous contaminants due to parts such as tires that have not been managed remain of no concern. At present, only a method for testing the gaseous pollutants of the whole vehicle exists, but no accurate quantitative testing method for the static volatile pollutants of tire parts exists, the tire is made of rubber, and the gaseous pollutants which are volatilized statically by the tire need to be further clarified so as to avoid the excessive pollution of the tire to the environment. The existing device cannot clearly distinguish and quantify the volatile gaseous pollutants of the single tire components, so that the technical defect of researching and controlling the gaseous pollutants of the tire is caused. In addition, the existing testing device only sets the whole vehicle in the sealing device, the function of the sealing device is single, the real simulation of various environments cannot be realized, and the difference between the testing result and the actual use is large. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide the device for detecting the volatile gaseous pollutants of the tire, which can singly realize quantitative measurement of the volatile gaseous pollutants of the tire and ensure consistency of measurement results and actual results. In order to achieve the above object, the present invention is realized by the following technical scheme: A device for detecting volatile gaseous pollutants in a tire, comprising: The workbench is provided with a supporting frame, the supporting frame can detachably support the tire, the tire is covered by the sealing cover and is in sealing connection with the workbench, and the workbench is provided with a main control unit; The background environment simulation unit is connected with the main control unit, the background environment simulation unit is supported by the sealing cover or the workbench, different simulation gases can be introduced into the sealing cover in real time to adjust the gas components in the background environment, the background environment simulation unit can simulate sunlight, can release moisture and can release hot gas and cold gas, and a background gas component change curve, a temperature change curve, a humidity change curve and a sunlight intensity change curve are stored in the main control unit so as to control the action of the background environment simulation unit; the monitoring unit is connected with the main control unit to acquire the background gas component information, the temperature information and the humidity information in the sealed cover; The sampling unit is connected with the main control unit and comprises a sampling tube, and the sampling tube is detachably connected with the sealing cover so that gas in the sealing cover enters the sealing tube. The detection device of the tire volatile gaseous pollutant is characterized in that the background gas composition change curve is determined according to the gas composition change in different areas and situations; the humidity change curve is determined according to the temperature change in different areas and situations; The humidity change curve is determined according to the changes of the air humidity in different areas and situations; and the sunlight intensity change curve is determined according to the sunlight intensity change in different areas and situations. The detection device for the volatile gaseous pollutants of the tire comprises the monitoring unit, wherein the monitoring unit comprises a background gas component analyzer, a temperature sensor, a humidity sensor and a sunlight intensity sensor which are arranged in the sealing cover. The device for detecting the volatile gaseous pollutants of the tire comprises a background environment simulation unit, a sealing cover and a detection unit, wherein the background environment simulation unit comprises a vacuumizing component arranged on the sealing cover and also comprises an air supply source which is communicated with the inside of the sealing cover; The gas supply sources comprise a plurality of gas sources, and the gas stored in different gas supply sources is different; The monitoring unit also comprises a flowmeter arranged between