CN109459274B - Auxiliary device for sealed sampling of insulating oil chromatographic analysis and sampling method - Google Patents
Auxiliary device for sealed sampling of insulating oil chromatographic analysis and sampling method Download PDFInfo
- Publication number
- CN109459274B CN109459274B CN201811020024.8A CN201811020024A CN109459274B CN 109459274 B CN109459274 B CN 109459274B CN 201811020024 A CN201811020024 A CN 201811020024A CN 109459274 B CN109459274 B CN 109459274B
- Authority
- CN
- China
- Prior art keywords
- sampling
- needle cylinder
- sampling needle
- placing barrel
- connecting piece
- 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.)
- Active
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 164
- 238000004587 chromatography analysis Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical 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
An auxiliary device for sealed sampling of insulating oil chromatographic analysis comprises a sampling needle cylinder placing barrel, a connecting piece, a rotating shaft and a base. The internal diameter of the lateral wall of the sampling needle cylinder placing barrel is matched with the external diameter of the main cylinder of the sampling needle cylinder, and the barrel bottom of the sampling needle cylinder placing barrel is provided with a through hole for the pull rod of the sampling needle cylinder to pass through. The upper end of the connecting piece is fixedly connected with the side wall of the sampling needle cylinder placing barrel, the lower end of the connecting piece is fixedly connected with the rotating shaft, and the rotating shaft is movably matched with the base and is provided with a fixing structure. The sampling method of the auxiliary device for sealed sampling by using the insulating oil chromatographic analysis comprises the following steps: 1. the sampling needle cylinder placing barrel is obliquely fixed and rotated; 2. placing the pull rod of the sampling needle cylinder downwards in the sampling needle cylinder placing barrel; 3. the sampling hole of the sampling needle cylinder is positioned at the highest position; 4. penetrating a sealing sleeve on a sampling rod of the sampling needle cylinder to a designed position by using a needle head on the small sampling needle cylinder; 5. and pulling the pull rod on the small sampling needle cylinder to enable the gas above the sample liquid to enter the small sampling needle cylinder until sampling is completed.
Description
Technical Field
The invention relates to the technical field of insulating oil gas chromatographic analysis devices of power systems, in particular to an auxiliary device for sealed sampling of insulating oil chromatographic analysis and a corresponding sampling method.
Background
Due to design, manufacture, quality and operation of large-scale power transformers, current transformers and other equipment, serious accidents and faults of the equipment occur, and the safe and stable operation of a power grid is seriously influenced. In order to ensure the safe operation of equipment such as transformers and the like and even power grids, a plurality of different monitoring methods are developed at home and abroad, wherein the gas chromatography is utilized to detect the content of various dissolved gases in insulating oil so as to judge the type and the severity of internal faults of oil-filled electrical equipment most effectively. The insulating gas chromatography is a chromatographic technique for separating and analyzing the easily volatile and non-decomposed compounds in organic chemistry, and it utilizes the characteristics of different distribution of the components to be separated between mobile phase and fixed phase to separate and calculate the content of gas component so as to judge the internal fault of oil-filled equipment. In the analysis, sampling was frequently performed using a glass syringe. At present, because the glass syringe that uses when the sample does not have fixing device, and the angle of syringe should be about 60 when the manual sampling, the deviation appears easily when alone operating alone, when leading to the extraction oil appearance, permeates the micro-air in the easy follow surrounding environment, and then can not be complete, stable extraction will carry out the oil appearance of analysis, and the result will lead to the analysis failure.
Disclosure of Invention
The main object of the present invention is to provide an auxiliary device for a sealed sampling of an insulating oil chromatography which can prevent a trace amount of air from permeating from the surrounding environment into a sample during sampling, and a method for sampling using the auxiliary device.
The technical scheme of the auxiliary device for the sealed sampling of the insulating oil chromatographic analysis is as follows: an auxiliary device for sealed sampling of insulating oil chromatographic analysis comprises a sampling needle cylinder placing barrel, a connecting piece, a rotating shaft and a base. The internal diameter of the lateral wall of the sampling needle cylinder placing barrel is matched with the external diameter of the main cylinder of the sampling needle cylinder, and the barrel bottom of the sampling needle cylinder placing barrel is provided with a through hole for the pull rod of the sampling needle cylinder to pass through. The upper end of the connecting piece is fixedly connected with the side wall of the sampling needle cylinder placing barrel, the lower end of the connecting piece is fixedly connected with the rotating shaft, and the rotating shaft is movably matched with the base and is provided with a fixing structure.
The fact that the rotating shaft is perpendicular to a plane and can rotate is meant by the fact that the rotating shaft is movably matched with the base and provided with the fixing structure, and the rotating shaft can be locked in a fixed position by the fixing structure after rotating to a certain position, so that the needle hole of the sampling needle cylinder is located at the highest position. Before operation, the sampling needle cylinder is filled with sample liquid, and a sampling rod of the sampling needle cylinder is sleeved with a sealing sleeve. When the operation of extracting the air sample from the sampling needle cylinder is started, the axis of the sampling needle cylinder placing barrel is firstly rotated to the state that the included angle between the axis of the sampling needle cylinder placing barrel and the horizontal plane is less than or equal to 60 degrees and more than or equal to 45 degrees, then the sampling needle cylinder is placed in the sampling needle cylinder placing barrel, the pull rod of the sampling needle cylinder penetrates through the through hole arranged at the barrel bottom of the sampling needle cylinder placing barrel, the sampling hole of the sampling needle cylinder positioned at the upper part is positioned at the highest position, then the needle head on the small sampling needle cylinder pierces the sealing sleeve enveloped on the sampling rod of the sampling needle cylinder to the designed position, and then the pull rod on the small sampling needle cylinder can be pulled to the proper position at a little point, so that a certain sample is obtained. This auxiliary device that sealed sample of insulating oil chromatographic analysis was used, intensity of labour that can greatly reduced sample operation is favorable to making the sample operation personnel be absorbed in the sample operation and can not be distracted, is a very outstanding auxiliary device that sealed sample was used.
Preferably, the depth of the sampling syringe placing barrel is less than or equal to two thirds of the height of the main barrel of the sampling syringe; another preferred scheme is that the side wall of the sampling syringe holding barrel is provided with two cracks, and the two cracks are symmetrically arranged. Above two preferred schemes all rotate the sample cylinder through suitable in order to finally confirm that the sampling rod on the sample cylinder is in the position of settlement, simple structure, convenient to use, processing low in manufacturing cost.
As preferred, be equipped with on the inner wall of the bucket that the bucket was placed to the sample cylinder and place the axis parallel's of bucket constant head tank with the sample cylinder, be equipped with on the lateral wall of corresponding sample cylinder with the location sand grip of constant head tank adaptation, location sand grip and constant head tank sliding fit. This preferred scheme, the location installation is placed in the bucket very easily at the sample cylinder to the sample cylinder, guarantees very easily that the thief rod on the sample cylinder is in on setting for the position, is favorable to improving productivity ratio.
Preferably, the connecting piece comprises a connecting piece main body, a fixing nut and a connecting rod. The upper end of the connecting piece main body is fixedly connected with the side wall of the sampling needle cylinder placing barrel, so that the upper end of the connecting piece is fixedly connected with the side wall of the sampling needle cylinder placing barrel. The lower end of the connecting piece main body is connected with the upper end of the connecting rod through threads and then locked by a fixing nut. The lower end of the connecting rod is fixedly connected with the rotating shaft, so that the lower end of the connecting piece is fixedly connected with the rotating shaft. This preferred scheme, rational in infrastructure, the height position of bucket is placed in the adjustment sample cylinder of being convenient for is in order to do benefit to the sampling operation, is favorable to improving the adaptability to workman's height.
Preferably, the device also comprises a component, a groove matched with the connecting piece is arranged on the component, one end of the component is rotatably connected with the base through a hinge, the other end of the component is fixedly connected with the base through a bolt, and the rotating shaft and the base which are well adjusted are extruded and fixed together. This preferred scheme, simple structure, convenient to use uses safe and reliable.
In conclusion, the auxiliary device for sealed sampling of the insulating oil chromatographic analysis has the beneficial effects that: the auxiliary device for sealed sampling can greatly reduce the work tension of workers, and is favorable for obtaining accurate detection samples, thereby being favorable for improving the accuracy of analysis reports.
The method for sampling by using the auxiliary device for sealed sampling of the insulating oil chromatographic analysis comprises the following steps:
the first step is as follows: rotating the sampling needle cylinder placing barrel to an inclined position and firmly fixing;
the second step is that: a pull rod of a sampling needle cylinder which takes a sample and is provided with a sealing sleeve at a sampling hole downwards passes through a through hole at the bottom of the sampling needle cylinder placing barrel, and then the sampling needle cylinder is placed in the sampling needle cylinder placing barrel;
the third step: determining the position of the sampling needle cylinder to enable the sampling hole of the sampling needle cylinder to be positioned at the highest position;
the fourth step: penetrating a sealing sleeve on a sampling rod of the sampling needle cylinder to a designed position by using a needle head on the small sampling needle cylinder;
the fifth step: and pulling the pull rod on the small sampling needle cylinder to enable the gas above the sample liquid to enter the small sampling needle cylinder until sampling is completed.
After the five sampling operations are completed, the sampled sample liquid can be taken for detection and analysis.
The method for sampling by using the auxiliary device for sealed sampling of the insulating oil chromatographic analysis has clear overall steps, is not easy to make mistakes in operation and has high operation efficiency.
Drawings
FIG. 1: the structure of the first embodiment of the invention is shown schematically;
FIG. 2: the structure of the second embodiment of the invention is shown schematically;
FIG. 3: the third embodiment of the invention is a structural schematic diagram;
in the figure: bucket 1 is placed to the sample cylinder, the lateral wall 1.1 of bucket is placed to the sample cylinder, through-hole 1.3, crack 1.4, constant head tank 1.5, connecting piece 2, connecting piece main part 2.1, fixation nut 2.2, connecting rod 2.3, pivot 3, base 4, component 5, groove 5.1, sample cylinder 6, the pull rod 6.1 of sample cylinder, the main section of thick bamboo 6.2 of sample cylinder, the sampling rod 6.3 of sample cylinder, seal cover 7, location sand grip 8, hinge 9, bolt 10.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Auxiliary device for sealed sampling of insulating oil chromatographic analysis:
the first embodiment is as follows:
as shown in figure 1, the invention comprises a sampling syringe placing barrel 1, a connecting piece 2, a rotating shaft 3, a base 4, a component 5, a sampling syringe 6 and a sealing sleeve 7.
The inner diameter of the side wall 1.1 of the sampling needle cylinder placing barrel 1 is matched with the outer diameter of the main cylinder 6.2 of the sampling needle cylinder 6, the barrel bottom 1.2 of the sampling needle cylinder placing barrel 1 is provided with a through hole 1.3 for a pull rod 6.1 of the sampling needle cylinder 6 to pass through, and the sealing sleeve 7 is sleeved on the sampling rod 6.3 of the sampling needle cylinder 6. The upper end of connecting piece 2 and the lateral wall 1.1 that bucket 1 was placed to the sample cylinder link firmly, and the lower extreme and the pivot 3 of connecting piece 2 link firmly, and movable fit is equipped with fixed knot between pivot 3 and the base 4. In this embodiment, the connector 2 includes a connector body 2.1, a fixing nut 2.2, and a connecting rod 2.3; the upper end of the connecting piece main body 2.1 is fixedly connected with the side wall 1.1 of the sampling needle cylinder placing barrel 1 so as to realize the fixedly connection of the upper end of the connecting piece 2 and the side wall 1.1 of the sampling needle cylinder placing barrel 1; the lower end of the connecting piece main body 2.1 is connected with the upper end of the connecting rod 2.3 through threads and then locked by a fixing nut 2.2; the lower end of the connecting rod 2.3 is fixedly connected with the rotating shaft 3, so that the lower end of the connecting piece 2 is fixedly connected with the rotating shaft 3. A structure for determining the position of the sampling needle cylinder 6 is arranged between the sampling needle cylinder placing barrel 1 and the main cylinder 6.2 of the sampling needle cylinder 6. In this embodiment, the depth of the sampling syringe holding barrel 1 is less than or equal to two thirds of the height of the main barrel 6.2 of the sampling syringe 6, and the main barrel 6.2 of the sampling syringe 6 can be adjusted to a proper orientation for sampling operation by holding the upper end of the main barrel 6.2 of the sampling syringe 6 and rotating the main barrel 6.2 of the sampling syringe 6. The component 5 is provided with a groove 5.1 matched with the connecting piece 2, one end of the component 5 is rotatably connected with the base 4 through a hinge 9, the other end of the component is fixedly connected with the base 4 through a bolt 10, and the rotating shaft 3 and the base 4 which are well adjusted are extruded and fixed together.
Example two:
as shown in fig. 2, the difference between the second embodiment and the first embodiment is that: in the second embodiment, two slits 1.4 are formed in the sidewall 1.1 of the sample cylinder holding barrel 1, and the two slits 1.4 are symmetrically arranged. This embodiment, rotate through two cracks 1.4 and place the sample cylinder 6 of placing bucket 1 at the sample cylinder in order to adjust sample cylinder 6 to the settlement position, the adjustment is easy and simple to handle, to the adaptability pipe of the 6.2 of the main section of thick bamboo of sample cylinder 6, is convenient for taking and putting of sample cylinder 6.
Example three:
as shown in fig. 3, the difference between the third embodiment and the first embodiment is mainly that: be equipped with on the inner wall of the bucket that bucket 1 was placed to the sample cylinder and place the parallel constant head tank 1.5 of axis of bucket with the sample cylinder, be equipped with on the lateral wall of corresponding sample cylinder 6 with the location sand grip 8 of constant head tank 1.5 adaptation, location sand grip 8 and constant head tank 1.5 sliding fit. In addition, the depth of the sampling needle cylinder placing barrel 1 is smaller than the length of the main cylinder 6.2 of the sampling needle cylinder 6 so as to facilitate the taking and placing of the sampling needle cylinder 6. Preferably, the length of the positioning rib 8 is less than or equal to one half of the length of the main barrel 6.2 of the sampling needle cylinder 6. This preferred scheme, sample cylinder 6 place the back in bucket 1 is placed to the sample cylinder, and the thief hole on the sample cylinder 6 is in the highest position, and sample cylinder 6 location is quick.
The sampling method embodiment of the auxiliary device for sealed sampling by using insulating oil chromatographic analysis comprises the following steps:
the sampling method comprises the following steps:
the first step is as follows: rotating the sampling needle cylinder placing barrel to an inclined position and firmly fixing;
the second step is that: a pull rod of a sampling needle cylinder which takes a sample and is provided with a sealing sleeve at a sampling hole downwards passes through a through hole at the bottom of the sampling needle cylinder placing barrel, and then the sampling needle cylinder is placed in the sampling needle cylinder placing barrel;
the third step: determining the position of the sampling needle cylinder to enable the sampling hole of the sampling needle cylinder to be positioned at the highest position;
the fourth step: penetrating a sealing sleeve on a sampling rod of the sampling needle cylinder to a designed position by using a needle head on the small sampling needle cylinder;
the fifth step: and pulling the pull rod on the small sampling needle cylinder to enable the gas above the sample liquid to enter the small sampling needle cylinder until sampling is completed.
Finally, the extracted sample liquid is sent to an analysis machine for detection and analysis.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the structure and scope of the invention. Indeed, equivalent variations may be made in the shapes, constructions and design objectives of the articles of manufacture described herein. Therefore, all equivalent changes in shape, structure and design herein are intended to be encompassed within the scope of the present invention, and are intended to be protected by the present invention.
Claims (7)
1. The utility model provides an auxiliary device that insulating oil chromatographic analysis's sealed sample was used which characterized by: comprises a sampling needle cylinder placing barrel (1), a connecting piece (2), a rotating shaft (3) and a base (4); the inner diameter of the side wall (1.1) of the sampling needle cylinder placing barrel (1) is matched with the outer diameter of the main cylinder (6.2) of the sampling needle cylinder (6), and a through hole (1.3) for a pull rod (6.1) of the sampling needle cylinder (6) to pass through is formed in the barrel bottom (1.2) of the sampling needle cylinder placing barrel (1); the upper end of the connecting piece (2) is fixedly connected with the side wall (1.1) of the sampling needle cylinder placing barrel (1), the lower end of the connecting piece (2) is fixedly connected with the rotating shaft (3), and the rotating shaft (3) is movably matched with the base (4) and is provided with a fixed structure; a structure for determining the position of the sampling needle cylinder (6) is arranged between the sampling needle cylinder placing barrel (1) and the main cylinder (6.2) of the sampling needle cylinder (6).
2. The auxiliary device for sampling a seal of an insulating oil chromatography according to claim 1, wherein: the depth of the sampling needle cylinder placing barrel (1) is less than or equal to two thirds of the height of the main barrel (6.2) of the sampling needle cylinder (6).
3. The auxiliary device for sampling a seal of an insulating oil chromatography according to claim 1, wherein: the lateral wall (1.1) of the sampling needle cylinder placing barrel (1) is provided with two cracks (1.4), and the two cracks (1.4) are symmetrically arranged.
4. The auxiliary device for sampling a seal of an insulating oil chromatography according to claim 1, wherein: be equipped with on the inner wall of the bucket that bucket (1) was placed to the sample cylinder and place the axis parallel constant head tank (1.5) of bucket with the sample cylinder, be equipped with on the lateral wall of corresponding sample cylinder (6) with location sand grip (8) of constant head tank (1.5) adaptation, location sand grip (8) and constant head tank (1.5) sliding fit.
5. The auxiliary device for sampling a seal of an insulating oil chromatography according to claim 1, wherein: the connecting piece (2) comprises a connecting piece main body (2.1), a fixing nut (2.2) and a connecting rod (2.3); the upper end of the connecting piece main body (2.1) is fixedly connected with the side wall (1.1) of the sampling needle cylinder placing barrel (1) so as to realize the fixedly connection of the upper end of the connecting piece (2) and the side wall (1.1) of the sampling needle cylinder placing barrel (1); the lower end of the connecting piece main body (2.1) is in threaded connection with the upper end of the connecting rod (2.3) and then locked by a fixing nut (2.2); the lower end of the connecting rod (2.3) is fixedly connected with the rotating shaft (3) so as to realize the fixed connection of the lower end of the connecting piece (2) and the rotating shaft (3).
6. The auxiliary device for sampling in a sealed state for chromatography of insulating oil according to any one of claims 1 to 5, wherein: the connecting structure is characterized by further comprising a component (5), a groove (5.1) matched with the connecting piece (2) is formed in the component (5), one end of the component (5) is rotatably connected with the base (4) through a hinge (9), the other end of the component (5) is fixedly connected with the base (4) through a bolt (10), and the rotating shaft (3) and the base (4) which are well adjusted are extruded and fixed together.
7. A method for sampling by using the auxiliary device for sealed sampling of insulating oil chromatography of any one of claims 1 to 6, characterized in that:
the first step is as follows: rotating the sampling needle cylinder placing barrel to an inclined position and firmly fixing;
the second step is that: a pull rod of a sampling needle cylinder which takes a sample and is provided with a sealing sleeve at a sampling hole downwards passes through a through hole at the bottom of the sampling needle cylinder placing barrel, and then the sampling needle cylinder is placed in the sampling needle cylinder placing barrel;
the third step: determining the position of the sampling needle cylinder to enable the sampling hole of the sampling needle cylinder to be positioned at the highest position;
the fourth step: penetrating a sealing sleeve on a sampling rod of the sampling needle cylinder to a designed position by using a needle head on the small sampling needle cylinder;
the fifth step: and pulling the pull rod on the small sampling needle cylinder to enable the gas above the sample liquid to enter the small sampling needle cylinder until sampling is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811020024.8A CN109459274B (en) | 2018-09-03 | 2018-09-03 | Auxiliary device for sealed sampling of insulating oil chromatographic analysis and sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811020024.8A CN109459274B (en) | 2018-09-03 | 2018-09-03 | Auxiliary device for sealed sampling of insulating oil chromatographic analysis and sampling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109459274A CN109459274A (en) | 2019-03-12 |
| CN109459274B true CN109459274B (en) | 2021-03-19 |
Family
ID=65606434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811020024.8A Active CN109459274B (en) | 2018-09-03 | 2018-09-03 | Auxiliary device for sealed sampling of insulating oil chromatographic analysis and sampling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109459274B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050030816A (en) * | 2003-09-26 | 2005-03-31 | 엘에스전선 주식회사 | Picking device of insulating oil for gas analysis |
| KR200399298Y1 (en) * | 2005-08-11 | 2005-10-20 | 주식회사 필드콤 | An automatic auxiliary apparatus to make easier the movement of the syringe piston |
| JP2014171758A (en) * | 2013-03-11 | 2014-09-22 | Yuyama Manufacturing Co Ltd | Chemical feeder |
| CN203965396U (en) * | 2014-07-15 | 2014-11-26 | 国家电网公司 | A kind of chromatography test balanced gas shifts support |
| CN204158821U (en) * | 2014-07-17 | 2015-02-18 | 王�琦 | Aspiration injection assistor |
| CN204405617U (en) * | 2015-02-27 | 2015-06-17 | 云南电网有限责任公司西双版纳供电局 | A kind of dielectric oil chromatographic analysis sampling device |
| CN104865103A (en) * | 2015-05-15 | 2015-08-26 | 国家电网公司 | Multi-function ultra-high voltage oil-filled power equipment full-sealing quantitative sampling device |
| CN204719010U (en) * | 2015-05-20 | 2015-10-21 | 国网山西省电力公司电力科学研究院 | Chromatograph sampling injector thruster |
| CN204731068U (en) * | 2015-05-15 | 2015-10-28 | 国家电网公司 | For the glass syringe sealing sampling auxiliary joint device of insulating oil gas chromatographic analysis |
| CN205991902U (en) * | 2016-07-26 | 2017-03-01 | 申联生物医药（上海）股份有限公司 | Pipet for liquid sampling is connected device |
| KR20170037584A (en) * | 2017-03-15 | 2017-04-04 | 알피니언메디칼시스템 주식회사 | Syringe guider and biopsy guider for attachment to ultrasound probe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100057017A1 (en) * | 2008-08-08 | 2010-03-04 | John Pappas | Feeding syringe assembly for an endoscopic gastronomy tube |
-
2018
- 2018-09-03 CN CN201811020024.8A patent/CN109459274B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050030816A (en) * | 2003-09-26 | 2005-03-31 | 엘에스전선 주식회사 | Picking device of insulating oil for gas analysis |
| KR200399298Y1 (en) * | 2005-08-11 | 2005-10-20 | 주식회사 필드콤 | An automatic auxiliary apparatus to make easier the movement of the syringe piston |
| JP2014171758A (en) * | 2013-03-11 | 2014-09-22 | Yuyama Manufacturing Co Ltd | Chemical feeder |
| CN203965396U (en) * | 2014-07-15 | 2014-11-26 | 国家电网公司 | A kind of chromatography test balanced gas shifts support |
| CN204158821U (en) * | 2014-07-17 | 2015-02-18 | 王�琦 | Aspiration injection assistor |
| CN204405617U (en) * | 2015-02-27 | 2015-06-17 | 云南电网有限责任公司西双版纳供电局 | A kind of dielectric oil chromatographic analysis sampling device |
| CN104865103A (en) * | 2015-05-15 | 2015-08-26 | 国家电网公司 | Multi-function ultra-high voltage oil-filled power equipment full-sealing quantitative sampling device |
| CN204731068U (en) * | 2015-05-15 | 2015-10-28 | 国家电网公司 | For the glass syringe sealing sampling auxiliary joint device of insulating oil gas chromatographic analysis |
| CN204719010U (en) * | 2015-05-20 | 2015-10-21 | 国网山西省电力公司电力科学研究院 | Chromatograph sampling injector thruster |
| CN205991902U (en) * | 2016-07-26 | 2017-03-01 | 申联生物医药（上海）股份有限公司 | Pipet for liquid sampling is connected device |
| KR20170037584A (en) * | 2017-03-15 | 2017-04-04 | 알피니언메디칼시스템 주식회사 | Syringe guider and biopsy guider for attachment to ultrasound probe |
Non-Patent Citations (1)
| Title |
|---|
| "电气设备绝缘油全密封取样装置设计及应用";杨震洋 等;《机电信息》;20141231(第36期);第49、51页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109459274A (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109459274B (en) | Auxiliary device for sealed sampling of insulating oil chromatographic analysis and sampling method | |
| CN110926860A (en) | Geotechnical sampling equipment for geotechnical engineering | |
| CN204731068U (en) | For the glass syringe sealing sampling auxiliary joint device of insulating oil gas chromatographic analysis | |
| CN106680055B (en) | Multifunctional soft clay hollow cylinder sample preparation device and sample preparation method | |
| CN214471169U (en) | Computer network remote monitoring equipment | |
| CN204422239U (en) | Sampler for concrete core sample | |
| CN109459263A (en) | A kind of agricultural technology extension soil sampling apparatus | |
| CN102879236B (en) | Device and method for breaking tank and extracting gas | |
| CN204357431U (en) | Lever soil sampler water booster system | |
| CN209198123U (en) | A kind of land resources soil property sampling apparatus | |
| CN211877466U (en) | Small-bore well drilling layering water sample sampler | |
| CN203200732U (en) | Static pressure type soil taking device | |
| CN108723437B (en) | Punching auxiliary device for electric power fitting and using method thereof | |
| CN210037352U (en) | Portable fire scene combustion improver sampling device | |
| CN203929431U (en) | Three axial compression contracting sample soil sample barrels | |
| CN110595824B (en) | Soil liquid light hydrocarbon field in-situ acquisition device and method | |
| CN209027857U (en) | A kind of auxiliary device of the sealing sampling of dielectric oil chromatographic analysis | |
| CN106404451A (en) | Waterproof apparatus for automatic rock coring machine and installation method thereof | |
| CN215931343U (en) | Sampling device for soil detection | |
| CN105800528A (en) | Inspection well cover opening device | |
| CN218994770U (en) | Quick sampling device of stope filling body | |
| CN209927499U (en) | Soil humiture and conductivity detection device | |
| CN205680533U (en) | A kind of take oil seal mechanism for power equipment oil pocket | |
| CN211825240U (en) | Sampling device for chemical fertilizer inspection | |
| CN221078148U (en) | Sampling device suitable for liquid ammonia transport vechicle |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |