CN214749144U - Oil sampling device for oil-filled casing of large transformer - Google Patents
Oil sampling device for oil-filled casing of large transformer Download PDFInfo
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- CN214749144U CN214749144U CN202120914402.8U CN202120914402U CN214749144U CN 214749144 U CN214749144 U CN 214749144U CN 202120914402 U CN202120914402 U CN 202120914402U CN 214749144 U CN214749144 U CN 214749144U
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Abstract
The utility model provides a large-scale transformer oil charge sleeve pipe oil sample device relates to the transformer and overhauls technical field. The device includes sampling joint (7), rubber tube (5) and cylinder (6), sampling joint includes rubber tube joint end (1), nut (2) and sample end (3), sampling joint (7) are cylindrical structure, oil appearance delivery port (4) that the axial runs through are seted up to its center, multichannel circumference recess has been seted up in rubber tube joint end (1), sample end (3) seted up with transformer sample connection matched with screw thread, nut (2) installation is fixed on sampling joint (7), be located between rubber tube joint end (1) and sample end (3), rubber tube (5) both ends can be connected with the syringe needle interference fit sealing of rubber tube joint end (1) and cylinder (6) respectively. The utility model discloses can make oil sample work standardization, flow, reduce staff's error and damage the risk of equipment, can solve the contaminated problem of oil impregnate and oil sample.
Description
Technical Field
The utility model relates to a transformer overhauls technical field, concretely relates to large-scale transformer oil charge sleeve pipe oil sampling device.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, main components are a primary coil, a secondary coil and an iron core, and the transformer is basic equipment for power transmission and distribution and is widely applied to the fields of industry, agriculture, traffic, urban communities and the like. However, when the transformer is used, the internal condition of the bushing cannot be well evaluated with the increase of the running time of the transformer, so that the transformer running for 6-10 years needs to be subjected to oil sampling detection, and dissolved gas in the oil sample is subjected to chromatographic analysis to judge whether the bushing of the transformer has internal discharge, overheating, overcurrent and other fault phenomena. When the transformer is subjected to oil sampling operation, oil leakage of the sleeve is often caused, the oil leakage of the transformer often causes serious environmental pollution to air, a large amount of resource waste can be caused, and when the oil level in the sleeve is too low, the sleeve is even exploded. In patent CN201820966874.6, a transformer oil sampling device is disclosed, which comprises a transformer oil sampling needle cylinder, a main support, an auxiliary support, a bottom frame, feet, a bottom plate, a vertical plate, an auxiliary support and a main support. This patent can be fixed and support oil sampling syringe, and the operation personnel can be put the device on ground or on the transformer ware body with great care, and the risk that glass oil sampling syringe landing was broken has been avoided to the switch of control valve with great care. However, the patent can not avoid the oil leakage problem of the sampling port and the pollution of the oil sample.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a large-scale transformer oil charge sleeve pipe oil sample device. The oil sampling work is standardized and streamlined by arranging a whole set of special tools, the risk that the equipment is damaged by the error of workers is reduced, and the technical problems that the oil leakage of a sampling port and the oil sampling are easy to be polluted are solved.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a large-scale transformer oil charge sleeve pipe device of drawing an oil sample, includes sampling joint, rubber tube and cylinder, wherein: the sampling joint comprises a rubber pipe joint end, a nut and a sampling end;
the sampling joint is of a cylindrical structure, and the center of the sampling joint is provided with an oil sample conveying hole which penetrates through the sampling joint in the axial direction;
a plurality of circumferential grooves are formed in the joint end of the rubber pipe;
the sampling end is provided with a thread matched with the sampling port of the transformer;
the nut is fixedly arranged on the sampling joint and is positioned between the joint end of the rubber pipe and the sampling end;
the rubber tube is a slender round tube, and two ends of the rubber tube can be in interference fit sealing connection with the joint end of the rubber tube and the needle head of the needle cylinder respectively.
Optionally or preferably, one end of the rubber pipe joint, which is far away from the nut, is provided with a chamfer.
Alternatively or preferably, the nut is welded to the sampling adapter.
Alternatively or preferably, the length of the rubber nipple end is greater than the length of the sampling end.
Alternatively or preferably, the rubber nipple end and the sampling end have the same outer diameter.
Based on the technical scheme, the following technical effects can be generated:
the utility model provides a pair of large-scale transformer oil charge sleeve pipe oil sampling device for to the inside analysis of taking oil sample of going on of cover inside of tubes to this judges whether transformer bushing appears the fault phenomena such as inside discharge, overheated, overflow. The utility model discloses a set up the oil sampling joint of threaded and oil sample delivery hole, can connect the screw in sample connection and seal with the oil sampling, utilize rubber tube and cylinder to absorb the insulating oil of a sleeve pipe, avoided the secondary pollution of the oil sampling of getting, make oil sample test data more accurate, also avoided the sealed oil seepage phenomenon that does not strictly cause of sleeve pipe sample connection. A whole set of special tools standardizes and processes the oil sampling work, and reduces the risk of damaging equipment by the error of workers. The technical problems that the sampling port is easy to be polluted due to oil leakage and oil samples are solved.
Drawings
FIG. 1 is a schematic structural view of a sampling adapter;
FIG. 2 is a schematic structural view of the present invention;
in the figure: 1-rubber tube joint end, 2-nut, 3-sampling end, 4-oil sample conveying hole, 5-rubber tube, 6-needle cylinder and 7-sampling joint.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1-2:
the utility model provides a large-scale transformer oil charge sleeve pipe oil sample device, including sampling joint 7, rubber tube 5 and cylinder 6, wherein:
the sampling joint comprises a rubber pipe joint end 1, a nut 2 and a sampling end 3;
the sampling joint 7 is of a cylindrical structure, and the center of the sampling joint is provided with an oil sample conveying hole 4 which axially penetrates through the sampling joint;
the rubber pipe joint end 1 is provided with a plurality of circumferential grooves;
the sampling end 3 is provided with a thread matched with a sampling port of the transformer;
the nut 2 is fixedly arranged on the sampling joint 7 and is positioned between the rubber pipe joint end 1 and the sampling end 3;
the rubber tube 5 is a slender round tube, and two ends of the rubber tube can be in interference fit sealing connection with the joint end 1 of the rubber tube and the needle head of the needle cylinder 6 respectively.
Alternatively or preferably, one end of the rubber pipe joint 1, which is far away from the nut 2, is provided with a chamfer.
Alternatively or preferably, the nut 2 is welded to the sampling connection 7.
Alternatively or preferably, the length of the rubber nipple end 1 is greater than the length of the sampling end 3.
Alternatively or preferably, the rubber nipple end 1 and the sampling end 3 have the same outer diameter.
The utility model provides a large-scale transformer oil charge sleeve pipe oil sampling device's working process as follows: when carrying out the oil sample to the sleeve pipe, pull down transformer bushing sample connection blanking cap, the 3 screw in sample connection of sample end of the joint 7 of taking the oil sample, 5 pot heads of rubber tube are on rubber tube joint end 1, and the other pot head of other pot head on 6 syringe needles of needle cylinder are utilized 6 absorption sleeve inside insulating oil of needle cylinder, are carried out the work of taking the oil sample.
Claims (5)
1. The utility model provides a large-scale transformer oil charge sleeve pipe device of drawing an oil sample which characterized in that: including sampling joint (7), rubber tube (5) and cylinder (6), wherein: the sampling joint comprises a rubber pipe joint end (1), a nut (2) and a sampling end (3);
the sampling joint (7) is of a cylindrical structure, and the center of the sampling joint is provided with an oil sample conveying hole (4) which axially penetrates through the sampling joint;
the rubber pipe joint end (1) is provided with a plurality of circumferential grooves;
the sampling end (3) is provided with a thread matched with a sampling port of the transformer;
the nut (2) is fixedly arranged on the sampling joint (7) and is positioned between the rubber pipe joint end (1) and the sampling end (3);
the rubber tube (5) is a slender round tube, and two ends of the rubber tube can be in interference fit sealing connection with the joint end (1) of the rubber tube and the needle head of the needle cylinder (6) respectively.
2. The large transformer oil filling sleeve oil sampling device according to claim 1, characterized in that: and a chamfer is formed at one end of the rubber pipe joint end (1) far away from the nut (2).
3. The large transformer oil filling sleeve oil sampling device according to claim 1, characterized in that: the nut (2) is welded and fixed on the sampling joint (7).
4. The large transformer oil filling sleeve oil sampling device according to claim 1, characterized in that: the length of the rubber pipe joint end (1) is greater than that of the sampling end (3).
5. The large transformer oil filling sleeve oil sampling device according to claim 1, characterized in that: the outer diameters of the rubber pipe joint end (1) and the sampling end (3) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914402.8U CN214749144U (en) | 2021-04-29 | 2021-04-29 | Oil sampling device for oil-filled casing of large transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914402.8U CN214749144U (en) | 2021-04-29 | 2021-04-29 | Oil sampling device for oil-filled casing of large transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214749144U true CN214749144U (en) | 2021-11-16 |
Family
ID=78615324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120914402.8U Active CN214749144U (en) | 2021-04-29 | 2021-04-29 | Oil sampling device for oil-filled casing of large transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214749144U (en) |
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2021
- 2021-04-29 CN CN202120914402.8U patent/CN214749144U/en active Active
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