CN111207957A - Method for collecting liquid in negative pressure device into closed bottle - Google Patents
Method for collecting liquid in negative pressure device into closed bottle Download PDFInfo
- Publication number
- CN111207957A CN111207957A CN201811413559.1A CN201811413559A CN111207957A CN 111207957 A CN111207957 A CN 111207957A CN 201811413559 A CN201811413559 A CN 201811413559A CN 111207957 A CN111207957 A CN 111207957A
- Authority
- CN
- China
- Prior art keywords
- hose
- oil
- valve
- oil sample
- vacuum
- 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
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 title claims abstract description 6
- 230000003137 locomotive effect Effects 0.000 claims abstract description 15
- 238000005070 sampling Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 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
-
- 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
- G01N2001/1418—Depression, aspiration
Abstract
The invention belongs to the technical field of oil sample extraction, and particularly relates to a method for collecting liquid in a negative pressure device into a closed bottle. The oil valve is arranged at the bottom of the main transformer of the electric locomotive, the closed bottle is in conduction connection with the oil valve of the main transformer of the electric locomotive through a hose, the vacuum pump is arranged at a vacuum cylinder, and the vacuum cylinder is in conduction connection with the closed bottle through a hose. The invention improves the traditional method for extracting the oil sample of the main transformer, adopts a hose flow guiding method, can directly extract the oil sample, saves the trouble caused by repeatedly extracting the oil sample, can ensure the tightness of the extracted oil sample, and can ensure the testing requirement without air contact. In addition, the method is simple to operate, the oil sample is convenient to extract for detection, and the method is suitable for popularization and application in the related technical field.
Description
Technical Field
The invention belongs to the technical field of oil sample extraction, and particularly relates to a method for collecting liquid in a negative pressure device into a closed bottle.
Background
After the electric locomotive is added with the maintenance process, the oil sample of the main transformer needs to be extracted and sent to a laboratory for testing.
At present, a 100ml syringe is adopted for manual extraction, and since a test needs 1000ml of oil sample, the operation needs to be repeated for 10 times at least to collect 1000ml of oil.
In addition, the manual collection of the oil sample needs to be operated repeatedly and injected into an open oil sample bottle, so that the test requirement of no air contact can not be met.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for collecting liquid in a negative pressure device into a closed bottle.
The oil valve is arranged at the bottom of the main transformer of the electric locomotive, the closed bottle is in conduction connection with the oil valve of the main transformer of the electric locomotive through a hose, the vacuum pump is arranged at a vacuum cylinder, and the vacuum cylinder is in conduction connection with the closed bottle through a hose.
Preferably, an oil valve arranged at the bottom of the main transformer of the electric locomotive is arranged on the connecting flange plate.
Preferably, the end of the hose which is communicated to the inside of the closed bottle is connected with a needle.
Preferably, the hose connecting the vacuum cylinder and the closed bottle is provided with an air valve and a negative pressure gauge device.
Preferably, the operating steps include:
A. checking whether the process equipment is good, if the appearance part is damaged or a gas leakage place is found, the process equipment is forbidden to be used;
B. checking the pressure state of a vacuum source, reading the value of a vacuum pressure gauge, switching on a power supply for the first time of use or when the pressure of the vacuum source is higher than the pressure of the connected oil sampling equipment, vacuumizing the cylinder, automatically stopping when the pressure reaches-0.1 Mpa, and switching off the power supply to perform the next operation;
C. mounting a transformer acquisition port connecting flange;
D. connecting the oil sample bottle to a transformer collecting port and connecting a flange hose;
E. connecting the oil sample bottle with a vacuum source interface hose;
F. opening a vacuum source valve, and vacuumizing the oil sample bottle;
G. opening a valve of a transformer acquisition port, extracting an oil sample, observing oil quantity scales, and closing the valve of the transformer acquisition port when the requirement is met;
H. closing the vacuum source valve;
I. take off the flexible connecting pipe and finish the connection
The invention improves the traditional method for extracting the oil sample of the main transformer, adopts a hose flow guiding method, can directly extract the oil sample, saves the trouble caused by repeatedly extracting the oil sample, can ensure the tightness of the extracted oil sample, and can ensure the testing requirement without air contact. In addition, the method is simple to operate, the oil sample is convenient to extract for detection, and the method is suitable for popularization and application in the related technical field.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention will now be described in more detail, wherein preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention herein described while still achieving the advantageous results of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
In the interest of clarity, not all features of an actual implementation are described. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.
The following description is provided to further illustrate the embodiments of the present invention, so that the objects and features of the present invention will be more clearly understood.
As shown in figure 1, the device comprises an electric locomotive main transformer 1, a closed bottle 2 and a vacuum pump 3, wherein an oil valve 10 is arranged at the bottom of the electric locomotive main transformer 1, the closed bottle 2 is in conduction connection with the oil valve 10 of the electric locomotive main transformer 1 through a hose 4, the vacuum pump 3 is installed at a vacuum cylinder 5, and the vacuum cylinder 5 is in conduction connection with the closed bottle 2 through the hose 4.
Specifically, an oil valve 10 arranged at the bottom of a main transformer 1 of the electric locomotive is arranged on the connecting flange 6. The end of the hose 4 conducted to the inside of the closed bottle 2 is connected with a needle 7.
Specifically, the hose 4 connecting the vacuum cylinder 5 and the closed bottle 2 is provided with an air valve 8 and a negative pressure gauge device 9.
Taking HXD3CA locomotive main transformer oil sample collection as an example, the operation steps comprise:
A. and (4) checking whether the process equipment is good, and if the appearance part is damaged or a gas leakage place is found, strictly forbidding use.
B. Checking the pressure state of the vacuum source, reading the value of the vacuum pressure gauge, and when the vacuum source is used for the first time or the pressure of the vacuum source is higher than the pressure of the connected oil sampling equipment, switching on the power supply to vacuumize the cylinder, and when the pressure reaches-0.1 Mpa, automatically stopping the machine, switching off the power supply and carrying out the next operation.
C. And a transformer acquisition port is arranged to be connected with a flange plate.
D. And connecting the oil sample bottle to the transformer collecting port and connecting the flange plate hose.
E. Connecting the oil sample bottle with a vacuum source interface hose.
F. And opening a vacuum source valve to vacuumize the oil sample bottle.
G. And opening the valve of the transformer acquisition port and extracting the oil sample. And observing the oil mass scale, and closing the valve of the transformer acquisition port when the requirement is met.
H. The vacuum source valve is closed.
I. And taking down the flexible connecting pipe, and finishing the receiving.
The invention improves the traditional method for extracting the oil sample of the main transformer, adopts a hose flow guiding method, can directly extract the oil sample, saves the trouble caused by repeatedly extracting the oil sample, can ensure the tightness of the extracted oil sample, and can ensure the testing requirement without air contact.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims (2)
1. A method for collecting liquid in a negative pressure device to a sealed bottle comprises a main transformer of an electric locomotive, the sealed bottle and a vacuum pump, and is characterized in that an oil valve is arranged at the bottom of the main transformer of the electric locomotive, the sealed bottle is in conduction connection with the oil valve of the main transformer of the electric locomotive through a hose, the vacuum pump is arranged at a vacuum cylinder, and the vacuum cylinder is in conduction connection with the sealed bottle through the hose;
the oil valve arranged at the bottom of the main transformer of the electric locomotive is arranged on the connecting flange plate, and the tail end of the hose conducted to the inside of the closed bottle is connected with a needle head;
the hose connecting the vacuum cylinder and the closed bottle is provided with an air valve and a negative pressure meter device.
2. The method of claim 1, wherein the step of operating comprises:
A. checking whether the process equipment is good, if the appearance part is damaged or a gas leakage place is found, the process equipment is forbidden to be used;
B. checking the pressure state of a vacuum source, reading the value of a vacuum pressure gauge, switching on a power supply for the first time of use or when the pressure of the vacuum source is higher than the pressure of the connected oil sampling equipment, vacuumizing the cylinder, automatically stopping when the pressure reaches-0.1 Mpa, and switching off the power supply to perform the next operation;
C. mounting a transformer acquisition port connecting flange;
D. connecting the oil sample bottle to a transformer collecting port and connecting a flange hose;
E. connecting the oil sample bottle with a vacuum source interface hose;
F. opening a vacuum source valve, and vacuumizing the oil sample bottle;
G. opening a valve of a transformer acquisition port, extracting an oil sample, observing oil quantity scales, and closing the valve of the transformer acquisition port when the requirement is met;
H. closing the vacuum source valve;
I. and taking down the flexible connecting pipe, and finishing the receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811413559.1A CN111207957A (en) | 2018-11-22 | 2018-11-22 | Method for collecting liquid in negative pressure device into closed bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811413559.1A CN111207957A (en) | 2018-11-22 | 2018-11-22 | Method for collecting liquid in negative pressure device into closed bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111207957A true CN111207957A (en) | 2020-05-29 |
Family
ID=70787911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811413559.1A Pending CN111207957A (en) | 2018-11-22 | 2018-11-22 | Method for collecting liquid in negative pressure device into closed bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111207957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945417A (en) * | 2021-10-11 | 2022-01-18 | 河南牧业经济学院 | A intelligent sampling device for milk cow fodder detects |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004301702A (en) * | 2003-03-31 | 2004-10-28 | Nippon Soda Co Ltd | Sampling method and device |
| CN101324488A (en) * | 2007-06-13 | 2008-12-17 | 中国科学院沈阳应用生态研究所 | Batch collecting device of soil solution of different soil layer depth |
| CN104048851A (en) * | 2014-06-09 | 2014-09-17 | 国家电网公司 | Transformer oil sampling device and method |
| CN105318177A (en) * | 2014-07-31 | 2016-02-10 | 中国长江电力股份有限公司 | Vacuum oil pumping device |
| CN105973647A (en) * | 2016-07-20 | 2016-09-28 | 彭清怡 | Device and method for collecting tiny-volume solution in gap in situ |
| CN106092657A (en) * | 2016-06-08 | 2016-11-09 | 天津送变电工程公司 | A kind of main transformer oil sample extracting method |
-
2018
- 2018-11-22 CN CN201811413559.1A patent/CN111207957A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004301702A (en) * | 2003-03-31 | 2004-10-28 | Nippon Soda Co Ltd | Sampling method and device |
| CN101324488A (en) * | 2007-06-13 | 2008-12-17 | 中国科学院沈阳应用生态研究所 | Batch collecting device of soil solution of different soil layer depth |
| CN104048851A (en) * | 2014-06-09 | 2014-09-17 | 国家电网公司 | Transformer oil sampling device and method |
| CN105318177A (en) * | 2014-07-31 | 2016-02-10 | 中国长江电力股份有限公司 | Vacuum oil pumping device |
| CN106092657A (en) * | 2016-06-08 | 2016-11-09 | 天津送变电工程公司 | A kind of main transformer oil sample extracting method |
| CN105973647A (en) * | 2016-07-20 | 2016-09-28 | 彭清怡 | Device and method for collecting tiny-volume solution in gap in situ |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945417A (en) * | 2021-10-11 | 2022-01-18 | 河南牧业经济学院 | A intelligent sampling device for milk cow fodder detects |
| CN113945417B (en) * | 2021-10-11 | 2024-01-19 | 河南牧业经济学院 | Intelligent sampling device for dairy cow feed detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207610890U (en) | A kind of medical test sampler | |
| CN203178116U (en) | Needle cylinder sampler | |
| CN104155154B (en) | A kind of gas extraction device being applicable to multiple gases catcher | |
| CN207007439U (en) | A kind of battery leakage detection means | |
| CN201543626U (en) | Capillary tube cleaning device | |
| CN111207957A (en) | Method for collecting liquid in negative pressure device into closed bottle | |
| CN112924249B (en) | Sampling and injecting device and method for carbon isotope analysis of slurry gas | |
| CN207866566U (en) | Transformer oil vacuum quantitative sampling instrument | |
| CN105258975A (en) | Closed insulation oil sampling device and sampling method thereof | |
| CN205079970U (en) | Oily sampling device of inclosed insulation | |
| CN208333976U (en) | Food Inspection sampler | |
| CN207704004U (en) | A kind of telephone testing machine | |
| CN205956616U (en) | Single sealing towards leading to quick -operation joint | |
| CN213933236U (en) | Oil taking and injecting equipment for chromatographic detection of transformer oil | |
| CN213447086U (en) | Laboratory that facilitates use detects uses nucleic acid extraction appearance | |
| CN102049397A (en) | Method and device for cleaning capillary of automatic sampler | |
| CN203732328U (en) | Sampling device capable of extracting gas sample from negative pressure pipeline | |
| CN209570398U (en) | A kind of oil sample collecting device for electric equipment | |
| CN111929116A (en) | Sampling method for detecting gas content of insulating oil | |
| CN207336006U (en) | A kind of gas circuit missing inspection device of gas sampler | |
| CN208672382U (en) | A kind of sample feeding device pull aid | |
| CN204347001U (en) | A kind of gas density analyzer calibration equipment | |
| CN102269666A (en) | Gas sample enrichment apparatus for ultra-low leakage rate detection, and method thereof | |
| CN202420779U (en) | Lithium battery leakage detection device | |
| CN103852351B (en) | A kind of sampler of extracting gases sample in negative-pressure pipeline and sampling method |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200529 |