CN212407626U - Sampling valve of transformer - Google Patents
Sampling valve of transformer Download PDFInfo
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- CN212407626U CN212407626U CN202020659701.7U CN202020659701U CN212407626U CN 212407626 U CN212407626 U CN 212407626U CN 202020659701 U CN202020659701 U CN 202020659701U CN 212407626 U CN212407626 U CN 212407626U
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- valve
- valve seat
- transformer
- sampling
- seat
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- 238000005070 sampling Methods 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 238000013461 design Methods 0.000 abstract description 10
- 239000007921 spray Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 7
- 230000006837 decompression Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a sampling valve of transformer belongs to transformer sampling equipment technical field. The sampling valve of the transformer comprises an isolation valve cover, a valve seat, a connecting flange, a nozzle tip and a control handle: the valve seat is of a stepped shaft-shaped structure; the lower end of the valve seat is provided with a connecting flange; the valve seat is in threaded connection with an isolation valve cover; the upper end of the valve seat is in threaded connection with an oil nozzle; a step-shaped oil passing flow passage is arranged in the valve seat; a sealing valve core is movably arranged in the oil passing flow passage; one side of the sealing valve core is fixedly provided with a connecting shaft pin; one end of the connecting shaft pin is vertically crossed and fixedly provided with a control handle. The sampling valve of the transformer has compact structure and smart design; the operation steps are simplified, and the working efficiency is improved; the problem of current sample valve easily take place to spray the leakage is solved, the needs of transformer sample have been satisfied.
Description
Technical Field
The utility model relates to a sampling valve of transformer belongs to transformer sampling equipment technical field.
Background
The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and has wide application in the field of electric power. The transformer oil in the transformer mainly has the functions of heat dissipation and cooling, and meanwhile has the function of insulation maintenance on internal components (such as windings and the like). In order to ensure the normal operation of the transformer; people often carry out the sample detection to the inside transformer oil of transformer through the sample valve on transformer body and the pressure regulating switch to reach the purpose of detecting the transformer. The main part of current sample valve is ordinary valve, and the exit of ordinary valve is installed the closing plate through the bolt-up. The sealing plate is installed to protect the outlet of the sampling valve from the contamination of the oil sample. However, after the structure is adopted, the sealing plate needs to be detached to carry out sampling operation each time sampling is carried out, the problems of complex operation procedure and long time consumption exist, and the requirement of people on quick sampling cannot be met; in addition, because the transformer oil in the transformer has certain pressure, the problem of spraying leakage caused by improper operation is easy to occur when the existing sampling valve is adopted for sampling; therefore, there is a need to develop a new sampling valve to solve the above problems of the existing sampling valve.
Disclosure of Invention
The utility model aims to provide a: the sampling valve of the transformer is compact in structure and ingenious in design, and solves the problems that an existing sampling valve is complex in operation procedure, long in time consumption and easy to spray and leak.
The technical scheme of the utility model is that:
the utility model provides a sampling valve of transformer, it comprises isolation valve bonnet, disk seat, flange, glib talker and brake valve lever, its characterized in that: the valve seat is of a stepped shaft-shaped structure; the lower end of the valve seat is provided with a connecting flange; the valve seat is in threaded connection with an isolation valve cover; the upper end of the valve seat is in threaded connection with an oil nozzle; a step-shaped oil passing flow passage is arranged in the valve seat; the upper end of the oil passing flow passage is communicated with the oil nozzle; a sealing valve core is movably arranged in the oil passing flow passage; one side of the sealing valve core is fixedly provided with a connecting shaft pin; one end of the connecting shaft pin is vertically crossed and fixedly provided with a control handle; one end of the control handle extends to the outside of the valve seat.
The isolating valve cover is of a cylindrical structure with the upper end closed; an internal thread is arranged inside the lower end of the isolating valve cover; the isolation valve cover is in threaded connection with the valve seat through internal threads.
The top of the isolating valve cover is provided with a knob bulge; the raised section of the knob is in a hexagonal structure.
The sealing valve core is of a spherical structure; a circulation hole is arranged in the sealed valve core; the circulation hole is of a dumbbell-shaped structure with the upper end and the lower end both being open, and the open area of the upper end of the circulation hole is larger than that of the lower end of the circulation hole.
The utility model has the advantages that:
the sampling valve of the transformer has compact structure and smart design; the valve seat is in threaded connection with a structural design of an isolation valve cover. After adopting this kind of design, the isolation valve casing can be kept apart disk seat and external world completely, has the function effect that the protection glib prevents the pollution. Meanwhile, during sampling, people only need to twist the isolation valve cover to remove the isolation valve cover, so that the operation steps are simplified, and the working efficiency is improved; the problem of the operating procedure that current sample valve exists complicated and long consuming time is solved, this application has still carried out special design to sealed case in addition, makes its during operation not only have the effect of switch disk seat, still has the effect of decompression, has solved current sample valve from this and has very easily taken place to spray the problem of leaking, has satisfied the needs of transformer sample.
Description of the drawings:
fig. 1 is a schematic view of an axial measurement structure of the present invention;
fig. 2 is a schematic sectional structure of the present invention;
FIG. 3 is a schematic structural view of the valve seat of the present invention;
FIG. 4 is a schematic structural view of the isolation valve cover of the present invention;
fig. 5 is a schematic view of the structure of the sealing valve core of the present invention.
In the figure: 1. the oil-gas separating valve comprises a separating valve cover, 2, a valve seat, 3, a connecting flange, 4, a nozzle tip, 5, a control handle, 6, internal threads, 7, a knob bulge, 8, an oil passing flow passage, 9, a sealing valve core, 10, a connecting shaft pin, 11, a circulation hole, 12 and a sealing ring.
Detailed Description
The sampling valve of the transformer is composed of an isolation valve cover 1, a valve seat 2, a connecting flange 3, a nozzle 4 and a control handle 5 (see the attached figures 1 and 2 of the specification).
The valve seat 2 is in a stepped shaft-shaped structure; the lower end of the valve seat 2 is provided with a connecting flange 3; the sampling valve can be mounted on the transformer via a connection flange 3.
The valve seat 2 is in threaded connection with an isolation valve cover 1 (see the attached figures 1 and 2 in the specification); the isolating valve cover 1 is of a cylindrical structure with the upper end closed; the lower end of the isolating valve cover 1 is internally provided with an internal thread 6 (see the attached figure 4 in the specification); the isolating valve housing 1 is screwed to the valve seat 2 via an internal thread 6.
The isolation valve housing 1 is thus provided for the purpose of: firstly, the valve seat 2 can be isolated from the outside by the isolating valve cover 1, so that the oil nozzle 4 and the sealing valve core 9 in the isolating valve cover are protected, and the problem that the oil nozzle 4 is polluted by outside air can be avoided; but also can lead the sealing valve core 9 to be in a relatively stable environment, and avoid the problem that the sealing valve core is easy to rust when being directly exposed in the external air. Secondly, make people can be easier to disassemble the installation to isolation valve housing 1, improved work efficiency.
The top of the isolating valve cover 1 is provided with a knob bulge 7; the section of the knob bulge 7 is in a hexagonal structure (see the attached figure 4 in the specification). The purpose of setting knob arch 7 is: so that the isolating valve cover 1 and the valve seat 2 are too tight in knob, and when the isolating valve cover 1 is difficult to unscrew manually, people can disassemble the isolating valve cover 1 by means of tools and under the matching of the knob bulge 7.
A sealing ring 12 is arranged between the isolating valve cover 1 and the valve seat 2; the purpose of the sealing ring 12 is to: to enhance the sealing effect between the isolating valve cover 1 and the valve seat 2 by the sealing ring 12.
The upper end of the valve seat 2 is in threaded connection with an oil nozzle 4; a step-shaped oil passing flow passage 8 is arranged in the valve seat 2; the upper end of the oil passing flow passage 8 is communicated with the oil nozzle 4 (see the attached figure 3 in the specification); the lower end of the oil passing flow passage 8 is communicated with the interior of the transformer, and the transformer oil in the oil passing flow passage 8 can be sprayed out through the oil nozzle 4.
A sealing valve core 9 is movably arranged in the oil passing flow passage 8; a connecting shaft pin 10 is fixedly arranged on one side of the sealing valve core 9; one end of the connecting shaft pin 10 is fixedly provided with a control handle 5 in a vertical crossing shape; one end of the control handle 5 extends to the outside of the valve seat 2 (see the description attached to fig. 3). When the control handle 5 is rotated, the control handle 5 can drive the sealing valve core 9 to synchronously rotate through the connecting shaft pin 10, so as to achieve the purpose of controlling the sealing or opening the oil flow passage 8.
The sealing valve core 9 is of a spherical structure; a flow hole 11 is arranged in the sealed valve core 9 (see the description and the attached figure 5); the circulation hole 11 is a dumbbell-shaped structure with the upper end and the lower end both being open, and the open area of the upper end of the circulation hole 11 is larger than that of the lower end of the circulation hole 11. The purpose of the flow holes 11 thus provided is: so that the circulation hole 11 of the sealed valve core 9 is communicated with the oil passage 8, when the sampling valve is in an 'open' state, the transformer oil in the transformer flows out through the oil passage 8 and the circulation hole 11 through the oil nipple 4, the transformer oil firstly passes through the open-mouth structure 'throttle' at the lower end of the circulation hole 11, so that the transformer oil passes through the middle part of the circulation hole 11 at a higher flow rate, and then passes through the open part at the upper end of the circulation hole 11, and the pressure of the transformer oil is suddenly reduced due to the suddenly increased space, so that the pressure of the outlet transformer oil of the circulation hole 1 is smaller than the inlet pressure of the circulation hole 1; therefore, the sampling valve has a certain decompression function, and the problem that the existing sampling valve is easy to spray and leak is solved to a certain extent.
The sampling valve of the transformer has compact structure and smart design; the structure design that the valve seat 2 is connected with the isolating valve cover 1 in a threaded manner is adopted. After adopting this kind of design, isolation valve cover 1 can be completely with disk seat 2 with external isolation, has the function effect that protection glib 4 prevents pollution. Meanwhile, during sampling, people only need to twist the isolating valve cover 1 to disassemble the isolating valve cover, so that the operation steps are simplified, and the working efficiency is improved; the problem of the operating procedure that current sample valve exists complicated and long consuming time is solved, this application has still carried out special design to sealed case in addition, makes its during operation not only have the effect of switch disk seat, still has the effect of decompression, has solved current sample valve from this and has very easily taken place to spray the problem of leaking, has satisfied the needs of transformer sample.
Claims (4)
1. The utility model provides a sampling valve of transformer, it comprises isolation valve bonnet (1), disk seat (2), flange (3), glib talker (4) and brake valve lever (5), its characterized in that: the valve seat (2) is of a stepped shaft-shaped structure; the lower end of the valve seat (2) is provided with a connecting flange (3); the valve seat (2) is in threaded connection with an isolation valve cover (1); the upper end of the valve seat (2) is in threaded connection with an oil nozzle (4); a step-shaped oil passing flow passage (8) is arranged in the valve seat (2); the upper end of the oil passing flow passage (8) is communicated with the oil nozzle (4); a sealing valve core (9) is movably arranged in the oil passing flow passage (8); a connecting shaft pin (10) is fixedly arranged on one side of the sealing valve core (9); one end of the connecting shaft pin (10) is vertically crossed and fixedly provided with a control handle (5); one end of the control handle (5) extends to the outer side of the valve seat (2).
2. The sampling valve of the transformer according to claim 1, wherein: the isolating valve cover (1) is of a cylindrical structure with the upper end closed; an internal thread (6) is arranged inside the lower end of the isolating valve cover (1); the isolating valve cover (1) is in threaded connection with the valve seat (2) through the internal threads (6).
3. The sampling valve of the transformer according to claim 2, wherein: the top of the isolating valve cover (1) is provided with a knob bulge (7); the section of the knob bulge (7) is in a hexagonal structure.
4. A sampling valve for a transformer according to claim 3, wherein: the sealing valve core (9) is of a spherical structure; a circulation hole (11) is arranged in the sealed valve core (9); the upper end and the lower end of the circulation hole (11) are both in an open dumbbell-shaped structure, and the open area of the upper end of the circulation hole (11) is larger than that of the lower end of the circulation hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020659701.7U CN212407626U (en) | 2020-04-27 | 2020-04-27 | Sampling valve of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020659701.7U CN212407626U (en) | 2020-04-27 | 2020-04-27 | Sampling valve of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212407626U true CN212407626U (en) | 2021-01-26 |
Family
ID=74299692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020659701.7U Active CN212407626U (en) | 2020-04-27 | 2020-04-27 | Sampling valve of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212407626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188835A (en) * | 2021-04-21 | 2021-07-30 | 华能伊敏煤电有限责任公司汇流河热电分公司 | System for detecting PH value of thermal power plant |
-
2020
- 2020-04-27 CN CN202020659701.7U patent/CN212407626U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188835A (en) * | 2021-04-21 | 2021-07-30 | 华能伊敏煤电有限责任公司汇流河热电分公司 | System for detecting PH value of thermal power plant |
| CN113188835B (en) * | 2021-04-21 | 2022-10-11 | 华能伊敏煤电有限责任公司汇流河热电分公司 | System for detecting PH value of thermal power plant |
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