CN111965095A - Environmental corrosion factor detection system and detection method - Google Patents
Environmental corrosion factor detection system and detection method Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 236
- 238000005260 corrosion Methods 0.000 title claims abstract description 61
- 230000007797 corrosion Effects 0.000 title claims abstract description 61
- 230000007613 environmental effect Effects 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 33
- 238000012360 testing method Methods 0.000 claims description 30
- 230000008859 change Effects 0.000 claims description 8
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- 230000035515 penetration Effects 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000011161 development Methods 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 claims description 5
- 231100000719 pollutant Toxicity 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 18
- 230000000737 periodic effect Effects 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000012785 packaging film Substances 0.000 description 3
- 229920006280 packaging film Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention provides a system and a method for detecting environmental corrosion factors. The detection system and the detection method can be used for monitoring the typical corrosion factor distribution in the working condition of the vehicle, and can be used for periodic trace monitoring and accumulative trace monitoring.
Description
Technical Field
The invention relates to the field of automobile detection, in particular to a system and a method for detecting environmental corrosion factors.
Background
The automobile is in the use, no matter the operating mode of traveling or the operating mode of parking, is influenced by corrosive substance in the environment at no time, because the difference of area and time leads to corroding influence factor type and concentration difference, through monitoring and statistics to each factor in the car life cycle, can be used for the analysis vehicle environmental corrosion operating mode, the resistant environmental corrosion life of prediction vehicle.
The existing method comprises two types of static analysis and monitoring equipment, wherein the static analysis and the monitoring equipment tend to acquire and analyze static data of various factors in the environment and do not accord with the dynamic driving working condition of the vehicle; the latter has higher limitations on equipment, technology and quantity, and is not beneficial to wide application and popularization.
The resistance type corrosion rate on-line detection generally adopts an electrochemical means, a metal probe is contacted with an atmospheric medium, the potential of the atmospheric medium is passed through, and the current density at the moment is calculated. The resistance type corrosion rate is monitored on line, the monitoring main body is atmosphere, and the comprehensive effect of all factors is obtained. In the implementation process, the resistance-type online monitoring system integrates the monitoring, analyzing and processing processes and highly integrated electronic equipment, is high in cost, can only be used for evaluating the atmospheric corrosion rate, and cannot evaluate the influence of the change of each factor on the corrosion rate.
Disclosure of Invention
In view of the above, the present invention is directed to a system and a method for detecting environmental corrosion factors, in which a relatively low-cost color-developed tag array is used, and a periodic adjustment manner is adopted to realize periodic monitoring and cumulative monitoring of environmental corrosion behaviors of a vehicle.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the environmental corrosion factor detection system comprises a detection array, wherein the detection array is a sealable strip-shaped detection array, and the main components of the detection array have gradual change and specific color development effects on a detected target.
Further, the detection array is composed of detection labels, and main components of the detection labels have gradual change and specific color development effects on detected targets.
Further, the detection array comprises plastic envelope membrane and detection label, the detection label is the strip, the plastic envelope membrane can be sealed with the detection label, should detect the label both ends and can seal.
Further, the target to be detected includes NOx、SOx、Cl-And the like.
Further, still include fixed bolster, sealing device, storage device respectively with fixed bolster fixed connection, inside seal chamber and the external intercommunication of being equipped with of sealing device, the inside storage chamber that is equipped with of storage device, and storage chamber and external intercommunication, detection array one end is located inside sealing device, and this detection array other end is located inside the storage device, storage device is equipped with controlling means, controlling means is used for driving detection array and removes to storage device by sealing device. The sealed cavity and the storage cavity can both contain the detection array.
An environmental corrosion factor detection method using the environmental corrosion factor detection system according to claim 5, comprising the steps of:
1) placing an environmental corrosion factor detection system in an environment to be detected, wherein a detection array is positioned in a sealing device and is in a sealing state;
2) detecting, operating a control device, moving a detection array from a sealing device to a storage device, enabling the detection array to enter a test area, wherein the test area is an external area through which the detection array moves from the sealing device to the storage device, two ends of the detection array 1 in a direction perpendicular to the movement direction of the detection array are respectively an end A and an end B, in the step 1), the end A and the end B are both in a sealed closed state, after the detection array enters the test area, the end A is opened and communicated with the outside, the end B is still in the sealed closed state, and the time for the detection array to stay in the test area is adjusted according to detection requirements;
3) after the detection is finished, operating the control device to enable the detection array to continuously move towards the storage device until the detection array enters the storage device, wherein the end A of the detection array entering the storage device is closed and isolated from the external atmosphere;
4) after the test is finished, the pollutant concentration and the corrosion rate in the detection time period are calculated by analyzing the color depth and the penetration length of the detection array.
The detection array moves from the sealing device to the storage device, the A, B end of the detection array is positioned in the direction perpendicular to the moving direction of the detection array, and the outer area which does not contain the sealing device and the storage device and passes by the detection array in the moving process is a test area.
Further, in the step 3), after the detection is finished, operating the control device to enable the detection array to continuously move towards the storage device until the detection array enters the storage device, wherein the end A of the detection array entering the storage device is closed and isolated from the external atmosphere, and the end B is opened and communicated with the external atmosphere;
in step 4), after the test is finished, the pollutant concentration and the corrosion rate in different detection time are calculated by respectively analyzing the color depth and the penetration length of the two ends of the detection array A, B.
Furthermore, the detection array is composed of a plurality of groups of detection labels, in the step 3), after one group of detection labels is detected, the control device is operated to enable the group of detection labels to continuously move towards the storage device until the group of detection labels enters the storage device, the end A of the detection label entering the storage device is closed and isolated from the external atmosphere, and meanwhile, the next group of detection labels enters the test area and the end A is opened for detection.
Furthermore, the detection array is composed of a plurality of groups of detection labels, in the step 3), after one group of detection labels is detected, the control device is operated to enable the group of detection labels to continuously move towards the storage device until the group of detection labels enters the storage device, the end A of the detection label entering the storage device is closed and isolated from the outside atmosphere, and the end B is opened and communicated with the outside atmosphere; meanwhile, the next group of detection labels enters the test area, the A end of the next group of detection labels is opened, and the B end of the next group of detection labels is still in a sealed closed state for detection.
Further, the control device is a knob, a reel is arranged in the storage device, and the knob is connected with the reel.
Compared with the prior art, the environmental corrosion factor detection system and the detection method have the advantages that:
(1) the detection system and the detection method can be used for monitoring the typical corrosion factor distribution in the working condition of the vehicle, and can be used for periodic trace monitoring and accumulative trace monitoring.
(2) In the detection system, the detection array consists of a plurality of beams of detection labels, and can be used for single-type component monitoring (responding to a single detection target) or multi-type label monitoring (responding to multiple detection targets) after being assembled by different types of detection labels.
(3) The detection system and the detection method are not easily interfered by external factors, the detection result is more accurate, and the detection cost is effectively reduced.
(4) Compared with the existing corrosion detection means such as resistance-type corrosion rate on-line detection and the like, the detection system and the detection method focus on monitoring the stage change of a plurality of factors which can influence the corrosion rate, the invention only monitors and records, analyzes and processes off-line, is convenient to calculate according to the requirements (ISO, GBT, NACE and other calculation formulas), calculates the corrosion rate off-line, has the advantages of the same corrosion rate, and completely different factor compositions from the existing detection means.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a detection array structure of an environmental corrosion factor detection system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an environmental corrosion factor detection system according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of an environmental corrosion factor detection system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of detection array information-time obtained by using the environmental corrosion factor detection system and the detection method according to the embodiment of the invention;
FIG. 5 is a diagram illustrating the SO2 content detection result obtained by the system and method for detecting environmental corrosion factors according to the embodiment of the present invention;
FIG. 6 is a Cl-content detection result obtained by using the environmental corrosion factor detection system and the detection method according to the embodiment of the invention;
FIG. 7 is a corrosion rate detection result obtained by using the environmental corrosion factor detection system and the detection method according to the embodiment of the invention.
Description of reference numerals:
1-a detection array; 11-detecting the label; 12-plastic packaging film; 2-fixing the bracket; 3-sealing means; 31-sealing the cavity; 4-a storage device; 41-a storage cavity; 5-a control device; 6-a fixing device; h-test area.
Detailed Description
The present invention will be described in detail with reference to examples.
Example (b):
the environmental corrosion factor detection system comprises a detection array 1, wherein the detection array 1 is a sealable strip-shaped detection array, and the main components of the detection array 1 have gradual change and specific color development effects on a detected target. The target to be detected comprises NOx、SOx、Cl-。
Preferably, the detection array 1 is composed of a detection label 11, and the main components of the detection label 11 have gradual change and specific color development effects on the detected object. Further preferably, the detection array 1 is composed of a plastic packaging film 12 and detection labels 11, the detection labels 11 are strip-shaped, the plastic packaging film 12 seals the detection labels 11, and two ends of the detection labels 11 are sealable. Both ends of the array of detection tags 11 can be used for detection, and which end is turned on can be used for detection.
Still include fixed bolster 2, sealing device 3 and storage device 4, sealing device 3, storage device 4 respectively with fixed bolster 2 fixed connection, sealing device 3 is inside to be equipped with seal chamber 31 and external intercommunication, storage device 4 is inside to be equipped with storage cavity 41, and storage cavity 41 and external intercommunication. Along the length direction of whole detection array, detection array 1 one end is located inside sealing device 3, and this detection array 1 other end is located inside storage device 4, and storage device 4 is equipped with controlling means 5, and controlling means 5 is used for driving detection array 1 and removes to storage device 4 by sealing device 3.
The bottom of the fixing support 2 is provided with a fixing device 6, preferably, the fixing device 6 is a screw or an adhesive tape, and the detection system can be adhered to a vehicle body, bound in the vehicle (in an instrument panel), screwed on a chassis and other parts through the fixing support 2 without a specified direction. It should be noted that, for the vehicle body and the chassis lamp, the installation in the area where water is easily accumulated and splashed is avoided, and the water inlet and windward of the label changing port are avoided.
The environmental corrosion factor detection method using the environmental corrosion factor detection system comprises the following steps:
1) the environmental corrosion factor detection system is placed in an environment to be detected, and the detection array 1 is positioned in the sealing device 3 and is in a sealing state;
2) detecting, namely operating a control device 5, moving a detection array 1 from a sealing device 3 to a storage device 4 to enable the detection array 1 to enter a test area h, wherein the test area h is an external area through which the detection array 1 moves from the sealing device 3 to the storage device 4, two ends of the detection array 1 in the direction perpendicular to the movement direction of the detection array 1 are respectively an A end and a B end, in the step 1), the A end and the B end are both in a sealed closed state, after the detection array 1 enters the test area h, the A end is opened and communicated with the outside, the B end is still in the sealed closed state, and the time for the detection array 1 to stay in the test area h is adjusted according to detection requirements;
3) after the detection is finished, operating the control device 5 to enable the detection array 1 to continuously move towards the storage device 4 until the detection array enters the storage device 4, wherein the end A of the detection array 1 entering the storage device 4 is closed and isolated from the external atmosphere, and the end B is opened and communicated with the external atmosphere;
4) after the test is finished, the color depth and the penetration length of the A, B ends of the detection array 1 are respectively analyzed, and the pollutant concentration and the corrosion rate in different detection time are calculated.
The detection array 1 is composed of a plurality of groups of detection labels 11, in the step 3), after one group of detection labels 11 is detected, the control device 5 is operated to enable the group of detection labels 11 to continuously move towards the storage device 4 until the group of detection labels enters the storage device 4, the end A of the detection label 11 entering the storage device 4 is closed and isolated from the outside atmosphere, and the end B is opened and communicated with the outside atmosphere; meanwhile, the next group of detection labels 11 enters the test area h, the end A is opened, and the end B is still in a sealed closed state for detection.
The detection label 11 is a sealing strip structure, the end A and the end B can be sealed and closed, and when the label is arranged inside the sealing device 3, the two ends of the label must be sealed and at least isolated from the outside atmosphere. Detect label 11 and include the totally enclosed, the sealed and three kinds of states of A end of B end, before the label uses, detect that label 11 is located sealing device 3 insidely, is in the totally enclosed state, during the detection, detects label 11 and gets into test area h, and the sealed A end of B end is opened, detects label 11 and gets into storage device 4 inside back, and the sealed B end of A end is opened. Preferably, both ends of the detection label 11 can be closed by pressing the seal, and the ends can be opened by pressing the portion near the ends; preferably, in operation, both ends A, B of the detection tag 11 are opened or closed by manual squeezing, or preferably, both ends A, B of the detection tag 11 are provided with squeezing devices, which facilitate multidirectional squeezing, and both ends A, B of the detection tag 11 are opened or closed by the squeezing devices.
Preferably, the control device 5 is a knob, and a reel is arranged in the storage device 4, and the knob is connected with the reel. One end of the detection array 1 is fixed on the scroll, and during detection, the knob is rotated to drive the scroll to rotate, so that the detection array 1 is driven to move from the sealing device 3 to the storage device 4, and the detection array 1 entering the storage device 4 is wound on the scroll. And (3) periodically rotating the knob to replace the detection array 1 positioned in the test area h, and timing and detecting the array again each time the array is replaced. In the detection stage, the detection label 11 in the test area h displays the influence factor information of the test period; after the label enters the storage device 4, the detection label 11 displays that the label is used to finish the test, and monitoring information is accumulated; and after the detection is finished, analyzing the color and the penetration depth of the color developing label in different periods, and analyzing the periodicity and the cumulative concentration distribution of the corrosion factors for analyzing the corrosion influence of the vehicle in the period.
By using the detection system and the detection method, the detection system is installed on the chassis of the vehicle in a threaded manner and is replaced month by month, after the vehicle runs for 12 months, the label array is taken down, and the detection array is read month by combining with a standard colorimetric card. Namely, SO2 and Cl-in the automobile environment are detected in monthly units, the concentration distribution of 6 substances is detected each time, the experimental period is 12 months, and the adjustment is carried out monthly. Thus, detection array 1 comprises 12 sets, each detection array 1 comprising 6 detection tags 11, and each set comprising SO2 and Cl-tags. After the detection is completed, a detection array 1 information-time diagram as shown in fig. 4 is obtained, in which data of each month is below the detection array and data accumulated in a gradient period is at the upper end. The detection array 1 is read month by month, the analysis method still uses the color depth and the penetration depth to convert the read data into a format required by a formula, and then the corrosion rate is calculated. The carbon steel corrosion rate is calculated through further calculation and data processing, the required data arrays are SO2 and Cl-, after the test is completed, the decoded data are firstly converted into a required format, the SO2 content detection result obtained after the data processing is shown in figure 5, the Cl-content detection result is shown in figure 6, and then the carbon steel corrosion rate is calculated.
Taking a carbon steel corrosion rate calculation mode adopting the ISO9223-2012 standard as an example, the calculation formula is as follows:
in the above-mentioned formula,
rcorrfirst year corrosion rate of metal;
t-annual average temperature;
RH-average annual relative humidity;
Pd-annual average SO2The deposition rate;
Sd-annual average Cl-The deposition rate;
fStcarbon steel correlation coefficient;
fSt0.150 x (T-10) when T is less than or equal to 10 ℃; otherwise, -0.054 × (T-10);
N＝128，R2＝0.85。
the results of corrosion rate measurements using the above calculation are shown in fig. 7.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An environmental corrosion factor detecting system, characterized by: the detection array is a sealable strip detection array, and the main components of the detection array have gradual change and specific color development effects on a detected target.
2. The environmental corrosion factor detection system of claim 1, wherein: the detection array is composed of detection labels, and the main components of the detection labels have gradual change and specific color development effects on the detected targets.
3. The environmental corrosion factor detection system of claim 2, wherein: the detection array comprises plastic envelope membrane and detection label, it is the strip to detect the label, the plastic envelope membrane can be sealed with detecting the label, should detect the label both ends and can seal.
4. The environmental corrosion factor detection system of claim 1, wherein: the target to be detected comprises NOx、SOx、Cl-And the like.
5. The environmental corrosion factor detection system of claim 1, 2, 3 or 4, wherein: still include fixed bolster, sealing device, storage device respectively with fixed bolster fixed connection, inside seal chamber and the external intercommunication of being equipped with of sealing device, the inside storage chamber that is equipped with of storage device, and storage chamber and external intercommunication, detection array one end is located inside sealing device, and this detection array other end is located inside storage device, storage device is equipped with controlling means, controlling means is used for driving the detection array and removes to storage device by sealing device.
6. An environmental corrosion factor detection method using the environmental corrosion factor detection system according to claim 5, characterized in that: the method comprises the following steps:
1) placing an environmental corrosion factor detection system in an environment to be detected, wherein a detection array is positioned in a sealing device and is in a sealing state;
2) detecting, operating a control device, moving a detection array from a sealing device to a storage device, enabling the detection array to enter a test area, wherein the test area is an external area through which the detection array moves from the sealing device to the storage device, two ends of the detection array in the direction perpendicular to the movement direction of the detection array are respectively an end A and an end B, in the step 1), the end A and the end B are both in a sealed closed state, after the detection array enters the test area, the end A is opened and communicated with the outside, and the end B is still in the sealed closed state, and adjusting the time for the detection array to stay in the test area according to the detection requirement;
3) after the detection is finished, operating the control device to enable the detection array to continuously move towards the storage device until the detection array enters the storage device, wherein the end A of the detection array entering the storage device is closed and isolated from the external atmosphere;
4) after the test is finished, the pollutant concentration and the corrosion rate in the detection time period are calculated by analyzing the color depth and the penetration length of the detection array.
7. The method for detecting environmental corrosion factors according to claim 6, wherein:
in step 3), after the detection is finished, operating the control device to enable the detection array to continuously move towards the storage device until the detection array enters the storage device, wherein the end A of the detection array entering the storage device is closed and isolated from the external atmosphere, and the end B is opened and communicated with the external atmosphere;
in step 4), after the test is finished, the pollutant concentration and the corrosion rate in different detection time are calculated by respectively analyzing the color depth and the penetration length of the two ends of the detection array A, B.
8. The method for detecting environmental corrosion factors according to claim 6, wherein: the detection array is composed of a plurality of groups of detection labels, in the step 3), after one group of detection labels is detected, the control device is operated, the group of detection labels continue to move towards the storage device until the detection labels enter the storage device, the A end of the detection label entering the storage device is closed and isolated from the outside atmosphere, and meanwhile, the next group of detection labels enter the test area and the A end of the detection label is opened for detection.
9. The method for detecting environmental corrosion factors according to claim 7, wherein: in the step 3), after one group of detection tags is detected, operating the control device to enable the group of detection tags to continuously move towards the storage device until the group of detection tags enter the storage device, wherein the end A of the detection tags entering the storage device is closed and isolated from the outside atmosphere, and the end B is opened and communicated with the outside atmosphere; meanwhile, the next group of detection labels enters the test area, the A end of the next group of detection labels is opened, and the B end of the next group of detection labels is still in a sealed closed state for detection.
10. The environmental corrosion factor detection system of claim 5, wherein: the control device is a knob, a scroll is arranged in the storage device, and the knob is connected with the scroll.
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| CN103389303A (en) * | 2013-08-07 | 2013-11-13 | 苏州扬清芯片科技有限公司 | Multi-index analysis paper chip and preparation method thereof |
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| CN207488189U (en) * | 2017-05-18 | 2018-06-12 | 易源易贝（北京）科技有限公司 | Test paper module |
| CN108535248A (en) * | 2018-04-18 | 2018-09-14 | 沈阳理工大学 | A kind of test paper and its preparation and detection method of detection ammonia concentration in air |
| CN110161024A (en) * | 2019-06-06 | 2019-08-23 | 深圳市科迈爱康科技有限公司 | Test paper, the application method of Test paper and paper box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103389303A (en) * | 2013-08-07 | 2013-11-13 | 苏州扬清芯片科技有限公司 | Multi-index analysis paper chip and preparation method thereof |
| WO2017033242A1 (en) * | 2015-08-21 | 2017-03-02 | 株式会社日立製作所 | Degradation detection structure, degradation detection method, and degradation detection system |
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Application publication date: 20201120 |