CN113804779A - Device and method for testing analysis performance of online chromatograph - Google Patents
Device and method for testing analysis performance of online chromatograph Download PDFInfo
- Publication number
- CN113804779A CN113804779A CN202110978407.1A CN202110978407A CN113804779A CN 113804779 A CN113804779 A CN 113804779A CN 202110978407 A CN202110978407 A CN 202110978407A CN 113804779 A CN113804779 A CN 113804779A
- Authority
- CN
- China
- Prior art keywords
- chromatograph
- oil
- standard
- online
- concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/027—Liquid chromatography
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a device and a method for testing the analysis performance of an online chromatograph, wherein the device comprises an oil cavity, the online chromatograph, a standard chromatograph and a resource supply module; white oil is contained in the oil cavity; the resource supply module is communicated with the oil cavity and is used for dynamically adjusting the content of dissolved gas in oil; and the online chromatograph and the standard chromatograph take oil samples from the oil cavity and are used for completing synchronous detection of the online chromatograph and the standard chromatograph. The invention can ensure that the online chromatograph can continuously detect the oil sample under different concentrations of the dissolved gas in the oil without disconnection, reconnection and re-stabilization of the online chromatograph in the detection process, thereby avoiding the possibility of air entering the online chromatograph and simultaneously ensuring the response time of the online chromatograph for accurately detecting the concentration change of the dissolved gas in the oil.
Description
Technical Field
The invention belongs to the technical field of chromatograph performance testing, and particularly relates to a device and a method for testing the analysis performance of an online chromatograph.
Background
If a fault occurs, the transformer may not only cause unnecessary shutdown of the transformer, but also seriously affect the reliability of power supply and the normal operation of a power transmission and distribution system. Therefore, timely troubleshooting of transformer faults through the only way of analyzing the content of dissolved gas components in transformer oil to check the health condition of the transformer is very important for ensuring the normal operation of the transformer. The method judges the health condition of the transformer by judging whether the latest data of the content of the dissolved gas components in the transformer oil measured by the same transformer has obvious increment compared with the past data.
The online chromatograph is mainly used for monitoring dynamic abnormal operation equipment and can provide real-time and continuous gas component content data to help the real-time monitoring of the state of the operation equipment; and because the oil flow pipeline formed after the sampling pipeline of the online chromatograph is connected with the operating equipment is generally in a sealed circulation state, the samples obtained by the online chromatograph are generally representative. Therefore, the use of an online chromatograph for analyzing the content of components in oil is very important for determining whether or not a transformer fails. However, in the prior art, the online chromatograph has good sampling effectiveness, instantaneity and data continuity for detecting the content of the dissolved gas in the oil, but the repeatability and accuracy of the measured data are far lower than those of the data measured by the standard chromatograph. At present, in order to accurately judge the content of the dissolved gas in the oil by an online chromatograph, the online chromatograph uses standard oil with known concentration of the dissolved gas in the oil to test the performance of the online chromatograph such as minimum detection concentration, accuracy, repeatability and the like before online detection. However, since the sampling and sample introduction of the online chromatograph need to pass through the sampling pipeline, and the sampling and sample introduction cannot be performed manually by the sampling injector like a standard chromatograph, when the standard oil with different concentrations of dissolved gas in oil is replaced and the online chromatograph is used for detection, the switch of the online chromatograph needs to be disconnected first, the online chromatograph needs to be restarted after the connection between the standard oil and the sampling pipeline is completed, and the dissolved gas in oil is detected after the online chromatograph is stabilized again. If the switch of the online chromatograph is not disconnected during oil change, the sampling pipeline of the online chromatograph pumps air into the online chromatograph; the air intake not only greatly prolongs the stabilization time of the on-line chromatograph, but also can seriously affect the accuracy of detecting the dissolved gas in the oil (the air in the sampling pipeline can be mixed into the standard oil). In addition, since the on-line chromatograph needs to be disconnected and reconnected during the detection by replacing the standard oil with the concentration of the dissolved gas in different oils, the response time of the on-line chromatograph to the concentration change of the dissolved gas in the oil cannot be measured, and this performance index is very important for the on-line chromatograph for monitoring the content of the dissolved gas in the oil in real time. In addition, the method for detecting the performance of analyzing the content of the dissolved gas in the oil by using the standard oil on-line chromatograph requires a large amount of manual operation, and is difficult to realize automatic detection.
Disclosure of Invention
Aiming at the problems, the invention provides a device and a method for testing the analysis performance of an online chromatograph, which can ensure that the online chromatograph can continuously detect oil samples under different concentrations of dissolved gas in oil without disconnection, reconnection and re-stabilization of the online chromatograph in the detection process, avoid the possibility that air enters the online chromatograph, and ensure the response time of the online chromatograph for accurately detecting the concentration change of the dissolved gas in the oil.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
in a first aspect, the present invention provides an apparatus for testing analytical performance of an on-line chromatograph, comprising: the system comprises an oil cavity, an online chromatograph, a standard chromatograph and a resource supply module;
white oil is contained in the oil cavity;
the resource supply module is communicated with the oil cavity and is used for dynamically adjusting the content of dissolved gas in oil;
the online chromatograph is a measured online chromatograph;
and the online chromatograph and the standard chromatograph take oil samples from the oil cavity and are used for completing synchronous detection of the online chromatograph and the standard chromatograph.
Optionally, the standard gas is a mixed standard gas or a single standard gas.
Optionally, the oil cavity is connected with a sampling circulation pipeline of the online chromatograph to be tested for automatic sample injection, and part of the oil sample is sent to the standard chromatograph.
Optionally, the resource supply module is an air source, and is used for introducing standard air into the white oil.
Optionally, the resource supply module is an oil source for adding a standard oil having a concentration of dissolved gas in a certain oil to the blank oil.
In a second aspect, the present invention provides a method for testing the analytical performance of an on-line chromatograph, comprising:
putting white oil into the oil cavity;
dynamically adjusting the content of dissolved gas in oil by using a resource supply module communicated with the oil cavity;
and respectively utilizing the online chromatograph and the standard chromatograph to take oil samples from the oil cavity, and completing synchronous detection of the online chromatograph and the standard chromatograph.
Optionally, the resource supply module is used for continuously adding standard oil with a certain concentration to the blank oil in the oil cavity or introducing standard gas until the online chromatograph reads data, and data displayed by the standard chromatograph is recorded as the minimum detection concentration of the measured online chromatograph, so as to complete the minimum detection concentration detection of the online chromatograph.
Optionally, when the concentration of the dissolved gas in the oil cavity is higher than the minimum detection concentration of the measured online chromatograph, closing the resource supply module, stopping concentration adjustment, and performing real-time detection on the concentration of the dissolved gas in the stable oil in the oil cavity by using the online chromatograph; and after a preset time period, calculating the repeatability of the online chromatograph according to the concentration data of the dissolved gas in the oil measured by the online chromatograph in the time period, and completing the repeatability detection of the online chromatograph.
Optionally, the resource supply module is used for adding standard gas or standard oil into the oil cavity for multiple times, content data of dissolved gas in oil measured by the standard chromatograph and the online chromatograph after the standard gas or the standard oil is added every time is recorded, the data measured by the standard chromatograph and the online chromatograph are compared, the accuracy of the online chromatograph is calculated, and the accuracy detection of the online chromatograph is completed.
Optionally, adding standard gas or standard oil with the amount larger than a preset value into the oil cavity, and completing the detection of the online chromatograph on the gas concentration change response time, wherein the time for adding the standard gas/standard oil into the oil cavity and the time for starting the change of the online chromatograph data are approximately equal to the gas concentration change response time.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the oil sample of the oil cavity device is skillfully used, and the concentration of the dissolved gas in the oil cavity is adjusted to achieve the purpose of detecting the concentration of the dissolved gas in different oils by the online chromatograph, so that the standard oil with the concentration of the dissolved gas in different oils is not required to be used for detection, and the online chromatograph is not required to be disconnected, reconnected and re-stabilized during each oil change;
(2) the online chromatograph and the oil cavity can be connected in the whole detection process without disconnecting, reconnecting and re-stabilizing the online chromatograph each time when oil is changed like using standard oil with the concentration of the dissolved gas in different oils, and the detection of the performance of the online chromatograph on the response time of the concentration change of the dissolved gas in the oil becomes measurable;
(3) the method uses a standard chromatograph and an online chromatograph to synchronously detect the content of the dissolved gas component in the oil, and the data measured by the standard chromatograph reflects the data of the dissolved gas content in the real oil, so that the concentration of the dissolved gas in the oil after the initial and regulated oil sample in the oil cavity does not need to be measured specially, the data measured by the online chromatograph only needs to be compared with the data measured by the standard chromatograph, namely, the standard chromatograph replaces the function of the standard oil in the performance test of the content of the dissolved gas in the analyzed oil of the online chromatograph, namely, the accurate data of the content of the dissolved gas in the oil is provided;
(4) the initial oil in the oil cavity of the oil-filled engine is white oil and oil with low gas concentration in the oil. By increasing the gas concentration in the oil in small amplitude every time, compared with a method using standard oil, the method can more accurately measure the minimum detection concentration which can be measured by an online chromatograph, thereby obtaining the more accurate performance index of the minimum detection concentration of the measured online chromatograph;
(5) the invention realizes automatic sampling and sample introduction by continuously connecting the sampling pipeline of the online chromatograph with the oil cavity; when the oil cavity realizes automatic regulation and control of gas concentration in oil and the standard chromatograph realizes automatic sampling and sample introduction from the oil cavity, the invention realizes the automation of performance test of analyzing the content of dissolved gas in oil by the online chromatograph; the automation of the detection is beneficial to the realization of the operation and maintenance integration of the national power grid.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural view of an apparatus for testing analytical performance of an on-line chromatograph according to an embodiment of the present invention;
in the figure:
1-an online chromatograph, 2-an oil chamber, 3-a sampling circulating pipeline, 4-a standard chromatograph and 5-an oil chamber pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
In the prior art, analysis of the content of dissolved gas components in transformer oil is the only way to check the health condition of the transformer at present. The online chromatograph is mainly used for monitoring the content of dissolved gas components in oil of dynamic existing abnormal operating equipment, so that the repeatability and the accuracy of the online transformer are very important for judging whether the operating equipment fails. However, the accuracy of the current online chromatograph for detecting the content of the dissolved gas in the oil is far less than that of the standard chromatograph. In order to detect the content of the dissolved gas in the oil more accurately by an online chromatograph, the standard oil with known concentration of the dissolved gas in the oil is used for testing the performance of minimum detection concentration, accuracy, repeatability and the like before the online detection. However, due to the sampling characteristic of the online chromatograph, the disconnection, reconnection and re-stabilization of the online chromatograph are required when the standard oil with the concentration of the dissolved gas in different oils is replaced each time to detect the standard oil; if mishandled, air can be introduced into the on-line transformer causing it to prolong the settling time or affecting the accuracy of the measured data. In addition, the on-line chromatograph is continuously connected, so that the response time of the on-line chromatograph to the concentration change of the dissolved gas in the oil, which is an important performance index for real-time monitoring, cannot be measured. Therefore, the invention provides a device and a method for testing the analysis performance of an online chromatograph, which can ensure that the online chromatograph can continuously detect oil samples under different concentrations of dissolved gas in oil without disconnection, reconnection and re-stabilization of the online chromatograph in the detection process, avoid the possibility that air enters the online chromatograph, and simultaneously ensure that the response time of the online chromatograph to the concentration change of the dissolved gas in the oil is accurately measured.
Example 1
In an embodiment of the present invention, an apparatus for testing an analysis performance of an online chromatograph 1 is provided, as shown in fig. 1, including: the system comprises an oil cavity 2, an online chromatograph 1, a standard chromatograph 4 and a resource supply module;
empty white oil is contained in the oil cavity 2;
the resource supply module is communicated with the oil cavity 2 and is used for dynamically adjusting the content of dissolved gas in oil;
the online chromatograph 1 is a measured online chromatograph;
the online chromatograph 1 and the standard chromatograph 4 take oil samples from the oil cavity 2 and are used for completing synchronous detection of the online chromatograph 1 and the standard chromatograph 4; the concentration of the dissolved gas in the oil cavity 2 is synchronously detected by the standard chromatograph 4 and the measured online chromatograph 1 by dynamically adjusting the concentration of the dissolved gas in the oil cavity 2 which is commonly connected with the standard chromatograph 4 and the measured online chromatograph 1, so that the performance index of the content of the dissolved gas in the online chromatographic analysis oil is obtained by comparison.
In a specific implementation manner of the embodiment of the invention, the oil cavity 2 is connected with a sampling circulation pipeline 3 of the online chromatograph 1 for automatic sample injection, the sampling circulation pipeline 3 is a self-contained sampling pipeline of the online chromatograph 1, when the online chromatograph 1 operates, an oil sample in the oil cavity 2 always circulates in the sampling circulation pipeline 3, and the online chromatograph 1 continuously and automatically samples through the sampling circulation pipeline 3; the standard chromatograph 4 is connected with the oil cavity 2 through an oil cavity pipeline 5 and used for completing synchronous detection of the online chromatograph 1 and the standard chromatograph 4, when the detected online chromatograph 1 detects dissolved gas in the oil cavity 2, the sampling circulation pipeline 3 of the detected online chromatograph 1 is not disconnected with the oil cavity 2 in the whole process, and the online chromatograph 1 is in an operating state in the whole process. In other embodiments of the embodiment of the present invention, when the standard chromatograph 4 and the measured online chromatograph 1 perform synchronous detection on the content of the dissolved gas in the oil cavity 2, the standard chromatograph 4 may obtain the oil sample in the oil cavity 2 in an automatic sampling and sample injection manner, or may manually take the oil sample in the oil cavity 2 to the standard chromatograph 4 in a sampling injector manner, and it is only necessary to ensure that the oil sample detected by the standard chromatograph 4 is consistent with the oil sample detected by the measured online chromatograph 1.
In a specific implementation manner of the embodiment of the present invention, the resource supply module is an air source, and is configured to introduce a standard gas into the white oil, where the standard gas is a mixed standard gas or a single standard gas. In another specific implementation manner of the embodiment of the present invention, the resource supply module is an oil source, and is configured to add a standard oil having a concentration of dissolved gas in oil to the blank oil.
When the standard chromatograph 4 and the online chromatograph 1 synchronously detect the concentration of the dissolved gas in the oil sample in the oil cavity 2, the environments of the standard chromatograph 4 and the online chromatograph 1 ensure the stable operation of the standard chromatograph 4 and the online chromatograph 1; the data of the concentration of the dissolved gas in the oil cavity 2 measured by the standard chromatograph 4 truly reflects the concentration of the dissolved gas in the oil cavity 2. The initial oil in the oil chamber 2 is white oil (i.e. oil body with low content of dissolved gas in the oil); when the concentration of the dissolved gas in the oil chamber 2 is dynamically adjusted by adding the standard gas into the blank oil, only one standard gas can be added to adjust the concentration of the gas in the oil chamber 2, and the mixed standard gas can also be added to adjust the concentration of a plurality of gases in the oil chamber 2; the dynamic adjustment of the concentration of the dissolved gas in the oil chamber 2 can simulate the phenomenon of gas concentration change caused by transformer faults so as to truly examine the performance of the on-line chromatograph 1.
When the minimum detection concentration of the online chromatograph 1 is detected, adding a small amount of high-concentration standard oil into the oil cavity 2 for multiple times when only white oil is available in the oil cavity 2 until the measured online chromatograph 1 reads data, wherein the data shown by the standard chromatograph 4 is the minimum detection concentration of the measured online chromatograph 1;
when the accuracy of the on-line chromatograph 1 is detected, the standard gas or the standard oil is added into the oil cavity 2 for a plurality of times, and the addition of the standard gas or the standard oil every time is recorded. Data of the content of dissolved gas in the oil measured by the standard chromatograph 4 and the online chromatograph 1; because the data measured by the standard chromatograph 4 truly reflect the concentration of the dissolved gas in the oil cavity 2, the accuracy of the online chromatograph 1 can be calculated by comparing the data measured by the standard chromatograph 4 and the online chromatograph 1;
when the repeatability of the online chromatograph 1 is measured, stopping concentration adjustment under the condition that the concentration of the dissolved gas in the oil cavity 2 is higher than the minimum detection concentration, and enabling the online chromatograph 1 to detect the concentration of the stable dissolved gas in the oil cavity 2 in real time; after a period of time, calculating the repeatability of the online chromatograph 1 according to the concentration data of the dissolved gas in the oil measured by the online chromatograph 1 in the period of time;
when the online chromatograph 1 detects the response time of the gas concentration change, a large amount of standard gas is added into the oil cavity 2, and the response time of the gas concentration change is approximately equal to the time of adding the standard gas/standard oil into the oil cavity 2 and the time of starting to change the data of the online chromatograph 1.
Example 2
The embodiment of the invention provides a method for testing the analysis performance of an online chromatograph 1, which comprises the following steps:
empty white oil is put into the oil cavity 2;
dynamically adjusting the content of dissolved gas in the oil by utilizing a resource supply module communicated with the oil cavity 2;
taking an oil sample from the oil cavity 2 by using a sampling tube communicated with the oil cavity 2, and respectively sending the oil sample into the online chromatograph 1 and the standard chromatograph 4 to finish the synchronous detection of the online chromatograph 1 and the standard chromatograph 4, specifically:
and continuously adding standard oil with certain concentration or introducing standard gas into the blank oil in the oil cavity 2 by using the resource supply module until the online chromatograph 1 reads data, recording the data displayed by the standard chromatograph 4 at the moment as the minimum detection concentration of the measured online chromatograph 1, and finishing the minimum detection concentration detection of the online chromatograph 1.
When the concentration of the dissolved gas in the white oil is higher than the minimum detection concentration, closing the resource supply module, stopping concentration adjustment, and detecting the concentration of the stable dissolved gas in the oil cavity 2 in real time by using the online chromatograph 1; after a preset time period, calculating the repeatability of the online chromatograph 1 according to the concentration data of the dissolved gas in the oil measured by the online chromatograph 1 in the time period, and completing the repeatability detection of the online chromatograph 1.
And adding standard gas or standard oil into the oil cavity 2 for multiple times by using the resource supply module, recording content data of dissolved gas in oil measured by the standard chromatograph 4 and the online chromatograph 1 after the standard gas or the standard oil is added every time, comparing the data measured by the standard chromatograph 4 and the online chromatograph 1, calculating the accuracy of the online chromatograph 1, and finishing the accuracy detection of the online chromatograph 1.
And adding standard gas or standard oil with the amount larger than a preset value into the oil cavity 2, and enabling the time for adding the standard gas/standard oil into the oil cavity 2 and the time for starting to change the data of the online chromatograph 1 to be approximately equal to the gas concentration change response time so as to finish the detection of the online chromatograph 1 on the gas concentration change response time.
In summary, the following steps:
(1) according to the invention, the oil sample of the oil cavity device is skillfully used, and the concentration of the dissolved gas in the oil cavity is adjusted to achieve the purpose of detecting the concentration of the dissolved gas in different oils by the online chromatograph, so that the standard oil with the concentration of the dissolved gas in different oils is not required to be used for detection, and the online chromatograph is not required to be disconnected, reconnected and re-stabilized during each oil change;
(2) the online chromatograph and the oil cavity can be connected in the whole detection process without disconnecting, reconnecting and re-stabilizing the online chromatograph each time when oil is changed like using standard oil with the concentration of the dissolved gas in different oils, and the detection of the performance of the online chromatograph on the response time of the concentration change of the dissolved gas in the oil becomes measurable;
(3) the content of the dissolved gas component in the oil is synchronously detected by using a standard chromatograph and an online chromatograph, and the data measured by the standard chromatograph reflects the data of the content of the dissolved gas in the real oil, so that the concentration of the dissolved gas in the oil after the initial and regulated oil sample in an oil cavity does not need to be measured specially, the data measured by the online chromatograph only needs to be compared with the data measured by the standard chromatograph, namely, the standard chromatograph replaces the function of the standard oil in the performance test of the content of the dissolved gas in the oil analyzed by the online chromatograph;
(4) the initial oil in the oil cavity of the oil-filled engine is white oil and oil with low gas concentration in the oil. By increasing the gas concentration in the oil in small amplitude every time, compared with a method using standard oil, the method can more accurately measure the minimum detection concentration which can be measured by an online chromatograph, thereby obtaining the more accurate performance index of the minimum detection concentration of the measured online chromatograph;
(5) the invention realizes automatic sampling and sample introduction by continuously connecting the sampling pipeline of the online chromatograph with the oil cavity; when the oil cavity realizes automatic regulation and control of gas concentration in oil and the standard chromatograph realizes automatic sampling and sample introduction from the oil cavity, the invention realizes the automation of performance test of analyzing the content of dissolved gas in oil by the online chromatograph; the automation of the detection is beneficial to the realization of the operation and maintenance integration of the national power grid.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An apparatus for testing analytical performance of an on-line chromatograph, comprising: the system comprises an oil cavity, an online chromatograph, a standard chromatograph and a resource supply module;
white oil is contained in the oil cavity;
the resource supply module is communicated with the oil cavity and is used for dynamically adjusting the content of dissolved gas in oil;
the online chromatograph is a measured online chromatograph;
and the online chromatograph and the standard chromatograph take oil samples from the oil cavity and are used for completing synchronous detection of the online chromatograph and the standard chromatograph.
2. The apparatus of claim 1, wherein the apparatus is configured to test the analytical performance of an on-line chromatograph, and further comprising: the standard gas is mixed standard gas or single standard gas.
3. The apparatus of claim 1, wherein the apparatus is configured to test the analytical performance of an on-line chromatograph, and further comprising: and the oil cavity is connected with a sampling circulating pipeline of the measured on-line chromatograph for automatic sample injection, and part of the oil sample is sent to the standard chromatograph.
4. The apparatus of claim 1, wherein the apparatus is configured to test the analytical performance of an on-line chromatograph, and further comprising: the resource supply module is an air source and is used for introducing standard air into the white oil.
5. The apparatus of claim 1, wherein the apparatus is configured to test the analytical performance of an on-line chromatograph, and further comprising: the resource supply module is an oil source and is used for adding standard oil with certain concentration of dissolved gas in oil into the blank oil.
6. A method for testing analytical performance of an on-line chromatograph, comprising:
putting white oil into the oil cavity;
dynamically adjusting the content of dissolved gas in oil by using a resource supply module communicated with the oil cavity;
and respectively utilizing the online chromatograph and the standard chromatograph to take oil samples from the oil cavity, and completing synchronous detection of the online chromatograph and the standard chromatograph.
7. The method of claim 6, wherein the resource supply module is used to continuously add standard oil with a certain concentration or introduce standard gas into the blank oil in the oil cavity until the online chromatograph reads data, and the data displayed by the standard chromatograph is recorded as the minimum detection concentration of the online chromatograph, so as to complete the minimum detection concentration detection of the online chromatograph.
8. The method of claim 7, wherein when the concentration of the dissolved gas in the oil chamber is higher than the minimum detected concentration of the online chromatograph, the resource supply module is turned off, the concentration adjustment is stopped, and the concentration of the dissolved gas in the oil stabilized in the oil chamber is detected in real time by the online chromatograph; and after a preset time period, calculating the repeatability of the online chromatograph according to the concentration data of the dissolved gas in the oil measured by the online chromatograph in the time period, and completing the repeatability detection of the online chromatograph.
9. The method of claim 7, wherein the resource supply module is used to add standard gas or standard oil into the oil cavity for a plurality of times, record the content data of the dissolved gas in the oil measured by the standard chromatograph and the on-line chromatograph after each addition of the standard gas or the standard oil, compare the data measured by the standard chromatograph and the on-line chromatograph, calculate the accuracy of the on-line chromatograph, and complete the accuracy detection of the on-line chromatograph.
10. The method of claim 6, wherein the step of adding a certain amount of standard gas or standard oil into the oil cavity, and the step of adding the standard gas/standard oil into the oil cavity and the step of starting to change the data of the on-line chromatograph are approximately equal to the response time of the gas concentration change, so that the detection of the response time of the on-line chromatograph to the gas concentration change is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978407.1A CN113804779A (en) | 2021-08-25 | 2021-08-25 | Device and method for testing analysis performance of online chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978407.1A CN113804779A (en) | 2021-08-25 | 2021-08-25 | Device and method for testing analysis performance of online chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113804779A true CN113804779A (en) | 2021-12-17 |
Family
ID=78941732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110978407.1A Pending CN113804779A (en) | 2021-08-25 | 2021-08-25 | Device and method for testing analysis performance of online chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113804779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166988A (en) * | 2022-02-09 | 2022-03-11 | 华谱科仪(北京)科技有限公司 | Chromatograph cluster fault detection method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010139421A (en) * | 2008-12-12 | 2010-06-24 | Hitachi Ltd | Gas component analyzer |
| CN102928519A (en) * | 2012-10-23 | 2013-02-13 | 上海市电力公司 | Accuracy testing method for oil chromatogram online monitoring device |
| CN204758596U (en) * | 2015-04-30 | 2015-11-11 | 广西电网有限责任公司电力科学研究院 | Dissolved gas content dynamic calibration system among transformer oil |
| CN105092717A (en) * | 2015-08-13 | 2015-11-25 | 国家电网公司 | Full-automatic check system for transformer oil chromatography on-line monitoring device |
| CN105223286A (en) * | 2015-09-01 | 2016-01-06 | 重庆大学 | The preparation of characteristic of transformer gas standard oil sample and evaluation method |
| CN105675732A (en) * | 2016-02-24 | 2016-06-15 | 国网技术学院 | Device and method for calibrating on-line chromatographic instrument of transformer |
| CN106093228A (en) * | 2016-06-01 | 2016-11-09 | 国网河北省电力公司电力科学研究院 | A kind of transformer station on-line chromatograph monitor device does not shut down method of calibration |
| CN106680211A (en) * | 2016-12-15 | 2017-05-17 | 国网河北省电力公司电力科学研究院 | Method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil |
-
2021
- 2021-08-25 CN CN202110978407.1A patent/CN113804779A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010139421A (en) * | 2008-12-12 | 2010-06-24 | Hitachi Ltd | Gas component analyzer |
| CN102928519A (en) * | 2012-10-23 | 2013-02-13 | 上海市电力公司 | Accuracy testing method for oil chromatogram online monitoring device |
| CN204758596U (en) * | 2015-04-30 | 2015-11-11 | 广西电网有限责任公司电力科学研究院 | Dissolved gas content dynamic calibration system among transformer oil |
| CN105092717A (en) * | 2015-08-13 | 2015-11-25 | 国家电网公司 | Full-automatic check system for transformer oil chromatography on-line monitoring device |
| CN105223286A (en) * | 2015-09-01 | 2016-01-06 | 重庆大学 | The preparation of characteristic of transformer gas standard oil sample and evaluation method |
| CN105675732A (en) * | 2016-02-24 | 2016-06-15 | 国网技术学院 | Device and method for calibrating on-line chromatographic instrument of transformer |
| CN106093228A (en) * | 2016-06-01 | 2016-11-09 | 国网河北省电力公司电力科学研究院 | A kind of transformer station on-line chromatograph monitor device does not shut down method of calibration |
| CN106680211A (en) * | 2016-12-15 | 2017-05-17 | 国网河北省电力公司电力科学研究院 | Method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166988A (en) * | 2022-02-09 | 2022-03-11 | 华谱科仪(北京)科技有限公司 | Chromatograph cluster fault detection method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1950774A2 (en) | Quantitative measurement of production and consumption of gases in power transformers and device | |
| US11320335B2 (en) | Systems and methods for testing gas leak detectors | |
| CN103439422A (en) | Detection method for field oil-gas online monitoring system | |
| CN106680211A (en) | Method for evaluating online synchronous comparing on accuracy of online monitoring device for dissolved gas in transformer oil | |
| CN106872613A (en) | A kind of standard transformer oil sample device for formulating and its operating method | |
| CN113804779A (en) | Device and method for testing analysis performance of online chromatograph | |
| CN105092717B (en) | A kind of full-automatic transformer oil chromatography on-Line Monitor Device check system | |
| CN104062618A (en) | Verification method for on-line monitoring device of double-signal-source capacitive equipment | |
| CN109884263B (en) | Dissolved oxygen sensor test device and test method thereof | |
| CN113776571A (en) | Online calibration method for thermal monitoring instrument of power plant | |
| CN116539759A (en) | Accelerated degradation test method and device for insulating oil dissolved gas on-line monitoring equipment | |
| CN117517231B (en) | Analysis method, system and readable medium of total nitrogen water quality online analyzer | |
| CN206657012U (en) | Based on the oil dissolved gas monitoring device field test system for comparing analysis | |
| CN106093222A (en) | Chromatographic detection apparatus stratification appraisal procedure in a kind of electrical network system | |
| CN103512962A (en) | Simulation system and method for chromatographic on-line detection of transformer oil gas | |
| CN113203531B (en) | Transformer bushing tightness monitoring method | |
| CN113819082B (en) | Online monitoring and diagnosing method and system for lubricating oil liquid of centrifugal compressor | |
| CN115326302B (en) | Transformer oil storage cabinet sealing detection method and system based on characteristic gas content | |
| CN203595689U (en) | Simulation system for chromatographic on-line detection of transformer oil gas | |
| Qiu et al. | Research on Fault Injection Method for Testability Verification Test | |
| CN113702289B (en) | Device and method for testing content of dissolved gas components in multi-scene transformer oil | |
| JPS6298262A (en) | Reinspection processing system for clinical inspection system | |
| CN205388572U (en) | Infrared on -line monitoring device of SF6 analyte | |
| CN116519858B (en) | Transformer oil nursing device with real-time monitoring function | |
| CN117554766B (en) | Insulation on-line monitoring method and monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211217 |
|
| RJ01 | Rejection of invention patent application after publication |