阅读说明：本技术 一种色谱试验用气优化处理装置 (Gas optimization processing device for chromatographic test ) 是由 王喜生 汪健 陆斌 隋巍 陈润晶 杨明 江玲 李长山 于笑辰 辛田 孙景飞 陈 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种色谱试验用气优化处理装置,包括净化装置、制冷装置、气流配比装置和色谱仪,所述净化装置的外壁固定连接有管道,所述净化装置的输出端与通过设置的管道与气流配比装置的输入端固定连接,所述管道的内部包括空气气路、氢气气路、氮气气路,所述氮气气路靠近气流配比装置的输入端固定连接有制冷装置。通过空气、氢气经过脱水管道内部的脱水介质,氮气经过脱氧脱水管道内部的脱水介质和脱氧介质进行过滤,得到优质气源,此时控制气路切换阀使得氮气气路直接与气流配比装置相通,气源再经气流配比装置内部的高精度气流配比阀处理后,以最佳气流比例流入色谱仪氢焰检测器,以达到点火成功率高,装置使用寿命长的效果。(The invention discloses an optimized treatment device for gas for chromatographic tests, which comprises a purification device, a refrigeration device, an air flow proportioning device and a chromatograph, wherein the outer wall of the purification device is fixedly connected with a pipeline, the output end of the purification device is fixedly connected with the input end of the air flow proportioning device through the arranged pipeline, the interior of the pipeline comprises an air gas path, a hydrogen gas path and a nitrogen gas path, and the nitrogen gas path is fixedly connected with the refrigeration device close to the input end of the air flow proportioning device. Through air, the inside dehydration medium of hydrogen through the dehydration pipeline, nitrogen gas filters through inside dehydration medium and the deoxidation medium of deoxidation dehydration pipeline, obtains high-quality air supply, and control gas circuit diverter valve makes the nitrogen gas circuit directly communicate with each other with air current proportioning device this moment, and the air supply is handled the back through the inside high accuracy air current proportioning valve of air current proportioning device again, flows into chromatograph hydrogen flame detector with best air current proportion to it is high to reach the success rate of igniteing, device long service life's effect.)

1. The utility model provides a experimental gas optimization processing device that uses of chromatogram, includes purifier (1), refrigerating plant (2), air current proportioning device (3) and chromatograph (5), its characterized in that: the outer wall fixedly connected with pipeline (4) of purifier (1), the output of purifier (1) and the input fixed connection through pipeline (4) and air current proportioning device (3) that set up, the inside of pipeline (4) includes air gas circuit (20), hydrogen gas circuit (21), nitrogen gas circuit (22), the input fixedly connected with refrigerating plant (2) that nitrogen gas circuit (22) is close to air current proportioning device (3), the output of air current proportioning device (3) is through the input fixed connection of pipeline (4) that sets up and chromatograph (5), the inside of purifier (1) includes dehydration pipeline (6), deoxidation dehydration pipeline (7), the quantity of dehydration pipeline (6) is two, dehydration pipeline (6) includes polytetrafluoroethylene hose (8), the inner wall fixedly connected with dehydration medium (9) of dehydration pipeline (6), the inside of deoxidation and dehydration pipeline (7) is provided with same polytetrafluoroethylene hose (8), the mixture of inside fixedly connected with dehydration medium (9), deoxidation medium (10) of deoxidation and dehydration pipeline (7), the outer wall of air gas circuit (20) and the inner wall fixed connection of dehydration pipeline (6), the same dehydration pipeline (6) of outer wall fixedly connected with of hydrogen gas circuit (21), the outer wall fixed connection of nitrogen gas circuit (22) and the outer wall fixed connection of deoxidation and dehydration pipeline (7).

2. The gas optimizing apparatus for chromatography test according to claim 1, wherein: the inside of air current ratio device (3) is provided with high accuracy air current ratio valve (15), the number of high accuracy air current ratio valve (15) is three, equal fixedly connected with high accuracy air current ratio valve (15) of outer wall of air gas circuit (20), hydrogen gas circuit (21), nitrogen gas circuit (22).

3. The gas optimizing apparatus for chromatography test according to claim 1, wherein: the inside of refrigerating plant (2) includes mount (11), the bottom of mount (11) and the inner wall fixed connection of refrigerating plant (2), the inner wall of mount (11) and the outer wall fixed connection of winding bucket (12), the inner wall of mount (11) is close to bottom fixedly connected with refrigeration structure (14) of winding bucket (12), the outer wall winding of winding bucket (12) has cooling duct (13), the inner wall fixedly connected with heat exchanger fin (24) of winding bucket (12), the input of cooling duct (13) is through the nitrogen gas circuit (22) that sets up and the input fixed connection of refrigerating plant (2), the output of cooling duct (13) is through the nitrogen gas circuit (22) that sets up and the output fixed connection of refrigerating plant (2).

4. The gas optimizing apparatus for chromatography test according to claim 1, wherein: output fixedly connected with gas circuit diverter valve (23) that nitrogen gas circuit (22) are close to purifier (1), the outer wall fixedly connected with branch pipe of gas circuit diverter valve (23), the input fixed connection of gas circuit diverter valve (23) through the branch pipe that sets up and air current proportioning device (3).

5. The gas optimizing apparatus for chromatography test according to claim 1, wherein: the inside of chromatograph (5) includes gas chromatograph A (17), gas chromatograph B (18) and gas chromatograph C (19), gas chromatograph A (17), gas chromatograph B (18), gas chromatograph C (19) are through pipeline (4) and the output fixed connection of air current proportioning device (3) that set up.

6. The gas optimizing apparatus for chromatography test according to claim 1, wherein: the outer wall of the refrigerating device (2) is fixedly connected with a temperature control switch (16).

Technical Field

The invention belongs to the technical field of gas optimization treatment devices, and particularly relates to a gas optimization treatment device for a chromatographic test.

Background

Chromatographic data is an important basis for judging the health state of the power grid equipment, and any factor influencing the test precision can cause serious consequences caused by misjudgment. We have found that the following problems exist when performing chromatographic tests:

1. the carrier gas flow is unstable, and the test data has deviation.

2. False peaks are easy to appear, peak shape recognition is influenced, test data are interfered, and repeatability r is larger than standard (10%).

3. The normal use time of the chromatographic column is shortened.

4. The detector is often not successful in ignition, which seriously affects the normal running of the test.

5. The cooling time is long, the cooling time is 30 minutes after the test, and the gas carrying amount is 4-6 times of that of each oil sample.

The following factors have been found to cause the above problems:

1. the airflow control valve has poor reliability and poor flow control effect.

2. The presence of trace impurities in the gas source causes abnormal peak shape, resulting in changes in the test data.

After oxygen and water in the nitrogen pipeline enter the chromatograph, the aging of the chromatographic column is accelerated under the action of high temperature, the service life of the instrument is shortened, and test data are interfered.

The hydrogen and the moisture in the air pipeline influence the normal ignition of the hydrogen flame detector.

3. The poor proportion of air, hydrogen not only influences hydrogen flame detector normal ignition, also is not favorable to making the instrument keep good operating condition.

4. Insufficient cooling strength results in long instrument cooling times after testing.

Disclosure of Invention

The invention aims to provide a gas optimization processing device for a chromatographic test, which solves the problems that in the use process of the existing gas optimization processing device in the background art, due to the poor reliability of an airflow control valve, the peak shape is abnormal due to the existence of trace impurities in a gas source, the cooling strength of hydrogen and water in an air pipeline is insufficient, the test data is changed, the normal ignition of a hydrogen flame detector is influenced, the instrument is not favorable to be kept in a good working state, and the instrument is cooled for a long time after the test.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a gas optimizing treatment device for chromatographic test, includes purifier, refrigerating plant, air current proportioning device and chromatograph, purifier's outer wall fixedly connected with pipeline, purifier's output and the input fixed connection through the pipeline that sets up and air current proportioning device, the inside of pipeline includes air gas circuit, hydrogen gas circuit, nitrogen gas circuit, the nitrogen gas circuit is close to air current proportioning device's input fixed connection refrigerating plant, air current proportioning device's output is through the pipeline that sets up and the input fixed connection of chromatograph, purifier's inside includes dehydration pipeline, deoxidation dehydration pipeline, the quantity of dehydration pipeline is two, the dehydration pipeline includes the polytetrafluoroethylene hose, the inner wall fixed connection of dehydration pipeline has the dehydration medium, the inside of deoxidation dehydration pipeline is provided with the same polytetrafluoroethylene hose, the hydrogen-oxygen-removing device is characterized in that a mixture of a dehydration medium and a deoxidation medium is fixedly connected inside the deoxidation dehydration pipeline, the outer wall of the air gas path is fixedly connected with the inner wall of the dehydration pipeline, the outer wall of the hydrogen gas path is fixedly connected with the same dehydration pipeline, and the outer wall of the nitrogen gas path is fixedly connected with the outer wall of the deoxidation dehydration pipeline.

Preferably, the inside of air current proportioning device is provided with high accuracy air current proportioning valve, the number of high accuracy air current proportioning valve is three, the equal fixedly connected with high accuracy air current proportioning valve of outer wall of air gas circuit, hydrogen gas circuit, nitrogen gas circuit.

Preferably, refrigerating plant's inside includes the mount, the bottom of mount and refrigerating plant's inner wall fixed connection, the inner wall of mount and the outer wall fixed connection of winding bucket, the inner wall of mount is close to the bottom fixedly connected with refrigeration structure of winding bucket, the outer wall winding of winding bucket has the cooling tube, the inner wall fixedly connected with heat exchanger fin of winding bucket, the input of cooling tube is through the nitrogen gas circuit that sets up and refrigerating plant's input fixed connection, the output of cooling tube is through the nitrogen gas circuit that sets up and refrigerating plant's output fixed connection.

Preferably, the nitrogen gas circuit is close to purifier's output fixedly connected with gas circuit diverter valve, the outer wall fixedly connected with branch pipe of gas circuit diverter valve, the gas circuit diverter valve is through the branch pipe that sets up and the input fixed connection of air current proportioning device.

Preferably, the inside of chromatograph includes gas chromatograph A, gas chromatograph B and gas chromatograph C, gas chromatograph A, gas chromatograph B, gas chromatograph C are through the pipeline that sets up and the output fixed connection of air current proportioning device.

Preferably, the outer wall of the refrigerating device is fixedly connected with a temperature control switch.

Compared with the prior art, the invention has the beneficial effects that:

1. through the dehydration medium that sets up, deoxidation medium and high accuracy air current ratio valve, make the success rate of ignition high, and detecting instrument is in optimum condition work always, air, hydrogen is through the inside dehydration medium of dehydration pipeline, nitrogen gas filters through the inside dehydration medium and the deoxidation medium of deoxidation dehydration pipeline, obtain high-quality air supply, control gas circuit diverter valve this moment makes the nitrogen gas circuit directly communicate with each other with air current ratio device, high-quality air supply is again through the inside high accuracy air current ratio valve processing back of air current ratio device, flow into chromatograph hydrogen flame detector with best air current proportion, it is high to reach the success rate of ignition, device long service life's effect.

2. Through the refrigeration structure, winding bucket and the heat exchanger fin that set up for the cool time of instrument reduces, after detecting, control gas circuit diverter valve makes nitrogen gas circuit and refrigerating plant communicate with each other, and wherein the nitrogen gas after being filtered can pass through refrigerating plant, and refrigeration structure refrigeration makes the inside heat exchanger fin cooling of winding bucket, and carries out the heat transfer to the inside nitrogen gas of cooling tube through winding bucket, accelerates the refrigeration effect of nitrogen gas, in order to reach the effect that reduces instrument cool time.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the structure of the purification apparatus of the present invention;

FIG. 3 is a schematic view of the refrigeration apparatus of the present invention;

FIG. 4 is a schematic view of the inner wall structure of the air flow proportioning device of the present invention.

In the figure: 1. a purification device; 2. a refrigeration device; 3. an air flow proportioning device; 4. a pipeline; 5. a chromatograph; 6. a dewatering pipeline; 7. a deoxygenating and dewatering pipeline; 8. a polytetrafluoroethylene hose; 9. a dewatering medium; 10. a deoxygenating medium; 11. a fixed mount; 12. winding the barrel; 13. a cooling duct; 14. a refrigeration structure; 15. a high-precision air flow proportioning valve; 16. a temperature control switch; 17. a gas chromatograph A; 18. a gas chromatograph B; 19. a gas chromatograph C; 20. an air path; 21. a hydrogen gas circuit; 22. a nitrogen gas circuit; 23. a gas path switching valve; 24. a heat exchanger fin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an optimized treatment device for chromatographic test gas, which comprises a purification device 1, a refrigeration device 2, an air flow proportioning device 3 and a chromatograph 5, wherein the outer wall of the purification device 1 is fixedly connected with a pipeline 4, the output end of the purification device 1 is fixedly connected with the input end of the air flow proportioning device 3 through the arranged pipeline 4, the inside of the pipeline 4 comprises an air gas path 20, a hydrogen gas path 21 and a nitrogen gas path 22, the nitrogen gas path 22 is fixedly connected with the refrigeration device 2 close to the input end of the air flow proportioning device 3, the output end of the air flow proportioning device 3 is fixedly connected with the input end of the chromatograph 5 through the arranged pipeline 4, the inside of the purification device 1 comprises a dehydration pipeline 6 and a deoxidation dehydration pipeline 7, the number of the dehydration pipeline 6 is two, the dehydration pipeline 6 comprises polytetrafluoroethylene hoses 8, the inner wall of the dehydration pipeline 6 is fixedly connected with dehydration media 9, the inside of the deoxidation pipeline 7 is provided with the same polytetrafluoroethylene hoses, the inside fixedly connected with dehydration medium 9 of deoxidation dehydration pipeline 7, the mixture of deoxidation medium 10, the outer wall of air gas circuit 20 and the inner wall fixed connection of dehydration pipeline 6, the same dehydration pipeline 6 of outer wall fixed connection of hydrogen gas circuit 21, the outer wall of nitrogen gas circuit 22 and the outer wall fixed connection of deoxidation dehydration pipeline 7.

In the embodiment, the air, the hydrogen and the dehydration medium 9 in the dehydration pipeline 6 are used, the nitrogen is filtered by the dehydration medium 9 in the deoxygenation and dehydration pipeline 7 and the deoxidation medium 10 to obtain a high-quality air source, and the high-quality air source flows into the hydrogen flame detector of the chromatograph in the optimal air flow proportion after being processed by the high-precision air flow proportioning valve 15 in the air flow proportioning device 3, so that the ignition success rate can be ensured, and the detector is in the optimal working state.

Specifically, the inside of the air flow proportioning device 3 is provided with the high-precision air flow proportioning valves 15, the number of the high-precision air flow proportioning valves 15 is three, and the outer walls of the air gas circuit 20, the hydrogen gas circuit 21 and the nitrogen gas circuit 22 are fixedly connected with the high-precision air flow proportioning valves 15.

In this embodiment, the airflow ratio is conveniently adjusted to the optimal point of the instrument operating state, and the high-precision airflow proportioning valve 15 is a manual valve without display delay, and has certain advantages compared with electronic equipment.

Specifically, refrigerating plant 2's inside includes mount 11, mount 11's bottom and refrigerating plant 2's inner wall fixed connection, mount 11's inner wall and winding bucket 12's outer wall fixed connection, mount 11's inner wall is close to winding bucket 12's bottom fixedly connected with refrigeration structure 14, winding bucket 12's outer wall winding has cooling tube 13, winding bucket 12's inner wall fixedly connected with heat exchanger fin 24, cooling tube 13's input is through the nitrogen gas circuit 22 that sets up and refrigerating plant 2's input fixed connection, cooling tube 13's output is through the nitrogen gas circuit 22 that sets up and refrigerating plant 2's output fixed connection.

In this embodiment, nitrogen gas after being filtered can pass through refrigerating plant 2, and refrigeration structure 14 refrigerates and makes the inside heat exchanger fin 24 cooling of winding bucket 12 to carry out the heat transfer through winding bucket 12 to the inside nitrogen gas of cooling tube 13, the refrigeration effect of nitrogen gas reduces the instrument cooling time with higher speed.

Specifically, the nitrogen gas path 22 is close to the output end of the purification device 1 and is fixedly connected with a gas path switching valve 23, the outer wall of the gas path switching valve 23 is fixedly connected with a branch pipe, and the gas path switching valve 23 is fixedly connected with the input end of the gas flow proportioning device 3 through the branch pipe.

In the embodiment, the common circuit can be switched during the experiment, and the cooling circuit can be switched after the experiment is finished, so that the use is very convenient.

Specifically, the chromatograph 5 includes a gas chromatograph a17, a gas chromatograph B18, and a gas chromatograph C19 inside, and the gas chromatograph a17, the gas chromatograph B18, and the gas chromatograph C19 are fixedly connected to the output end of the air flow proportioning device 3 through the arranged pipeline 4.

In this embodiment, the accuracy of device measurement has been improved.

Specifically, a temperature control switch 16 is fixedly connected to the outer wall of the refrigeration device 2.

In this embodiment, it can be convenient to control the temperature.

The working principle and the using process of the invention are as follows: air, hydrogen and nitrogen are respectively connected into an air gas path 20, a hydrogen gas path 21 and a nitrogen gas path 22, the air and the hydrogen pass through a dehydration medium 9 in a dehydration pipeline 6 to prevent water from influencing the normal ignition of a hydrogen flame detector, the nitrogen passes through the dehydration medium 9 and a deoxidation medium 10 in a deoxidation dehydration pipeline 7 to be filtered to prevent the nitrogen from flowing into a chromatograph, the aging of a chromatographic column is accelerated under the action of high temperature, and other metal elements are oxidized to obtain a high-quality gas source, at the moment, a gas path switching valve 23 is controlled to ensure that the nitrogen gas path 22 is directly communicated with an air flow proportioning device 3, the high-quality gas source flows into the hydrogen flame detector of the chromatograph at the optimal air flow proportion after being processed by a high-precision air flow proportioning valve 15 in the air flow proportioning device 3, the ignition success rate can be ensured, the detector is in the optimal working state, and after being detected, wherein the nitrogen gas after being filtered can pass through refrigerating plant 2, and refrigeration structure 14 refrigerates and makes the inside heat exchanger fin 24 cooling of winding bucket 12 to carry out the heat transfer through winding bucket 12 to the inside nitrogen gas of cooling tube 13, the refrigeration effect of nitrogen gas accelerates, reduces instrument cooling time.

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