CN204612970U - A kind of oil sealed sampling device of large-scale power transformer - Google Patents
A kind of oil sealed sampling device of large-scale power transformer Download PDFInfo
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- CN204612970U CN204612970U CN201520247427.1U CN201520247427U CN204612970U CN 204612970 U CN204612970 U CN 204612970U CN 201520247427 U CN201520247427 U CN 201520247427U CN 204612970 U CN204612970 U CN 204612970U
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Abstract
A kind of oil sealed sampling device of large-scale power transformer, for drawing oil sample to power transformer (2), power transformer is arranged in fire wall (3), and the valve nozzle (12 ') of the body sampling valve (1 ') of correspondence is provided with the first connecting portion, this oil sealed sampling device comprises: rapid-acting coupling (5), oil sample pipeline (6), valve (7); The first end of rapid-acting coupling has second connecting portion suitable with the first connecting portion, and the second end has three connecting portion suitable with oil sample pipeline; The first end of oil sample pipeline is connected with valve, and the second end is connected with rapid-acting coupling by the 3rd connecting portion, and the length of oil sample pipeline is more than or equal to the distance of rapid-acting coupling to fire wall.Enforcement the beneficial effects of the utility model are, in the process that draws oil sample pipeline do not get loose, oil-proof, reduce sampling injury to personnel risk, only need change different rapid-acting coupling and namely be applicable to the transformer installing different body sampling valve and to draw oil sample work.
Description
Technical field
The utility model relates to oil sealed sampling device field, more particularly, relates to a kind of large-scale power transformer that is applicable to and to break down the on-the-spot oil sealed sampling device drawn oil sample to it when reporting to the police.
Background technology
With reference to figure 1, it is the structural representation of the medium-and-large-sized power transformer oil sealed sampling device of prior art.Current large-scale power transformer 2 periphery is generally all provided with fire wall 3, in order to work of drawing oil sample to this power transformer 2, the fuel tank of this power transformer 2 is all provided with body sampling valve 1, body sampling valve 1 is connected with the fuel tank (drawing some parts in figure) of large-scale power transformer 2, when drawing oil sample, sampling personnel enter in fire wall, and the switch opening body sampling valve 1 obtains oil sample on the spot from fuel tank.
With reference to the connection diagram that figure 1 and Fig. 2, Fig. 2 are body sampling valve 1 in Fig. 1.Body sampling valve 1 to be arranged on fuel tank and to be communicated with fuel tank, and whether body sampling valve 1 comprises switch 11 and valve nozzle 12, flowed out and the rate of outflow by the controlled liquefaction sample of this switch 11.When internal fault sign appears in this large-scale power transformer 2, staff needs to draw oil sample to it, to carry out repetition measurement or to follow the tracks of its internal fault Long-term change trend.Current large-scale power transformer draw oil sample adopt means be connected with body sampling valve 1 by oil resistant flexible pipe 4, the one end being about to the oil resistant flexible pipe 4 drawn oil sample is plugged on valve nozzle 11, the switch 11 that sampling personnel open body sampling valve 1 on the spot draws oil sample on the spot, and oil sample flows out from the other end of oil resistant flexible pipe 4.In actual use procedure, valve nozzle 12 is traditionally arranged to be taper, namely inserts the direction of valve nozzle 12 along oil resistant flexible pipe 4, and the diameter of valve nozzle 11 increases successively, so that the grafting of oil resistant flexible pipe 4 and valve nozzle 11.
Current this traditional employing flexible pipe that draws oil sample carries out sampling with itself and sampling method, and there are the following problems:
Draw oil sample when 1, cannot ensure transformer fault the safety of personnel, that is: this classic method need sample personnel and samples near transformer;
2, oil resistant flexible pipe is connected unreliable with the valve nozzle of body sampling valve, and when valve opening becomes large, when oil pressure is larger, oil resistant flexible pipe easily comes off, and causes transformer oil to outflow, and even affects oil analysis result.
3, get poor sealing when oil pipeline is connected with body sampling valve, affect crude oil sample analysis result.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of oil sealed sampling device of large-scale power transformer.
The utility model solves its technical matters, the technical scheme adopted there is provided a kind of oil sealed sampling device of large-scale power transformer, draw oil sample for power transformer, wherein this power transformer is arranged in fire wall, and the valve nozzle of the body sampling valve of correspondence is provided with the first connecting portion, this oil sealed sampling device comprises rapid-acting coupling, oil sample pipeline, valve; The first end of rapid-acting coupling has second connecting portion suitable with the first connecting portion, and the second end has the 3rd suitable connecting portion with oil sample pipeline; The first end of oil sample pipeline is connected with valve, and the second end is connected with rapid-acting coupling by the 3rd connecting portion, and the length of oil sample pipeline is more than or equal to the distance of rapid-acting coupling to fire wall.
In oil sealed sampling device of the present utility model, the first connecting portion is external thread structure, and the second connecting portion is the female thread structure suitable with external thread.
In oil sealed sampling device of the present utility model, the 3rd connecting portion has check groove, the shape size of check groove and oil sample pipeline suitable to enable oil sample pipeline be plugged on check groove.
In oil sealed sampling device of the present utility model, oil sample pipeline comprises oil resistant flexible pipe, copper pipe line.
In oil sealed sampling device of the present utility model, during use, described valve is positioned at the outside of fire wall corresponding to the power transformer that draws oil sample.
In oil sealed sampling device of the present utility model, the second end of rapid-acting coupling is threaded for union.
In oil sealed sampling device of the present utility model, body sampling valve also comprises whether flowing out the switch with the rate of outflow for controlling oil sample.
In oil sealed sampling device of the present utility model, fire wall offers the hole for passing to oil sample pipeline and rapid-acting coupling.
Implement the oil sealed sampling device of large-scale power transformer of the present utility model, there is following beneficial effect: by the outer separation valve door of fire wall, sampling personnel, without the need to sampling near large-scale power transformer, realize the operation of sampling personnel fire wall external switch, reduce injury to personnel risk; Rapid-acting coupling adopts with body sampling valve and is threaded, and the pipeline in process that ensures to draw oil sample does not get loose, oil-proof; Rapid-acting coupling and oil sample pipeline connecting position process check groove, prevent pipeline from coming off, and solve conical body sample valve oil pipe and fix difficult problem and because of the poorly sealed problem causing crude oil sample analysis error; Only need change different rapid-acting coupling to be namely applicable to the transformer installing different body sampling valve and to draw oil sample work.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the medium-and-large-sized power transformer oil sealed sampling device of prior art;
Fig. 2 is the connection diagram of body sampling valve embodiment in Fig. 1;
Fig. 3 is the structural representation of the oil sealed sampling device embodiment of large-scale power transformer of the present utility model;
Fig. 4 is the structural representation of body sampling valve and rapid-acting coupling in Fig. 3.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 3, it is the structural representation of the oil sealed sampling device embodiment of large-scale power transformer of the present utility model.In oil sealed sampling device embodiment of the present utility model, large-scale power transformer 2 is arranged in fire wall 3, the fuel tank (drawing some part in figure) that body sampling valve 1 ' is arranged on large-scale power transformer 2 is upper and coupled logical, body sampling valve 1 ' connects rapid-acting coupling 5, and rapid-acting coupling 5 is also connected to valve 7 by an oil sample pipeline 6.
With reference to the structural representation that figure 3 and Fig. 4, Fig. 4 are body sampling valve 1 ' and rapid-acting coupling 5 in Fig. 3.In the oil sample device of the large-scale power transformer 2 of the present embodiment, the body sampling valve 1 ' of this large-scale power transformer 2 correspondence has and whether flows out and the switch 11 of the rate of outflow and valve nozzle 12 ' for controlling oil sample, valve nozzle 12 ' has outer spiro structure 121 '.Oil sealed sampling device in the present embodiment comprises rapid-acting coupling 5, oil sample pipeline 6, valve 7.Wherein, the first end of rapid-acting coupling 5 has the female thread structure 51 suitable with external thread structure 121 ', rapid-acting coupling 5 and body sampling valve 1 ' can be coupled together by the cooperation of two screw threads, be threaded because rapid-acting coupling 5 adopts with body sampling valve 1 ', overcome the prior art oil sample pipeline 4 in process that draws oil sample and easily get loose and the technical matters of easy oil leakage.And in the process of practical application, when the female thread structure 51 on the first end of rapid-acting coupling 5 is connected with the upper external thread structure 121 of the valve nozzle 12 ' of body sampling valve 1 ', install O-ring seal additional, to improve the performance of connection further.Second end of rapid-acting coupling 5 has check groove 52, and the shape size of this check groove 52 and oil sample pipeline 6 suitable to make oil sample pipeline 6 can be plugged on the check groove 52 of rapid-acting coupling 5 second end.Because oil sample pipeline 6 is plugged on check groove 52, can effectively prevent oil sample pipeline 6 from coming off, also available improving bud grafting of taking is fixed further if desired, can to solve in prior art oil sample pipeline 4 on valve nozzle 12 and to come off problem.In order to make oil sample pipeline 6 more easily be plugged on check groove 52, the second end of rapid-acting coupling 5 is often designed to taper, and namely along the direction that oil sample pipeline 6 inserts, the diameter of check groove 52 (the second end) increases gradually.
In another embodiment, because the first connecting portion on the valve nozzle of reality use body sampling valve is except the external thread structure being designed to the present embodiment, other structure can also be set to, as the structure such as internal thread or buckle, the second connecting portion on corresponding rapid-acting coupling first end also should do corresponding adjustment, be designed to external thread or buckle structure (buckle structure generally needs two parts cooperation to realize, and the first connecting portion and the second connecting portion have a buckle structure part separately) respectively.
In prior art, the personnel of drawing oil sample need to enter the life security that fire wall 3 carries out drawing oil sample faced near large-scale power transformer 2 on the spot and threaten, and improve in the present embodiment to the existing method of drawing oil sample.In the present embodiment, fire wall 3 offers the hole for passing to oil sample pipeline 6 and rapid-acting coupling 5, this hole adopts fire proofing material shutoff at ordinary times, opens this fire proofing material during use.One end of oil sample pipeline 6 is connected with valve 7, when can control to draw oil sample by this valve 7, whether oil sample flows out and the rate of outflow, this valve 7 is positioned at outside fire wall 3 simultaneously, and the personnel drawn oil sample only just can need operate after installing the device of the present embodiment outside fire wall 3.The check groove 52 (the 3rd connecting portion) of other end grafting rapid-acting coupling 5 second end of oil sample pipeline 6, therefore in actual use procedure valve 7 indeed through through walls and cross oil sample pipeline 6 be connected on the second end of rapid-acting coupling 5.The first end of rapid-acting coupling 5 is be connected in the external thread 121 ' structure (the first connecting portion) of valve nozzle 12 ' by its female thread structure 51 (the second connecting portion) in use, therefore the actual flow of fluid is to being fuel tank---body sampling valve 1 '---rapid-acting coupling 5---oil sample pipeline 6---valve 7.By the above-mentioned design of the present embodiment, the personnel that draw oil sample just can carry out having drawn oil sample outside fire wall 3, in order to realize above-mentioned design, the length of oil sample pipeline 6 needs to be designed to be more than or equal to the distance of described rapid-acting coupling (5) to described fire wall (3), and concrete is as the criterion with the distance of the second end to the outer valve 7 of fire wall 3 that meet rapid-acting coupling 5.Wherein, the selection of above-mentioned oil sample pipeline 6 can adopt oil resistant flexible pipe, copper pipe line realize.
Second end of rapid-acting coupling 5 can adopt threaded for union, loose joint can be realized between rapid-acting coupling 5 and oil sample pipeline 6, that is: rapid-acting coupling 5 is in access procedure, oil sample pipeline 6 does not rotate, rapid-acting coupling 5 and body sampling valve 1 ' can be coupled together by the first connecting portion and the second connecting portion by the second end only rotating rapid-acting coupling 5, thus ensure rapidity and the convenience of access.Wherein oil sample pipeline 6 needs to rinse with qualified transformer oil before using, and to ensure that the material that oil sample is not left in oil sample pipeline 6 affected, ensures the accuracy of fault analysis.Valve 7 is arranged on oil sample pipeline 6 afterbody, whether flows out the control with the rate of outflow for realizing oil sample outside fire wall 3, before not determining the whether inner catastrophic failure of this large-scale power transformer 2, can ensure at any time at fire wall 3 outer oil-extracting sample.
When thinking that this large-scale power transformer 2 may exist internal fault, for finding out failure cause and nature of trouble further, determine to utilize the oil sealed sampling device of the present embodiment to carry out drawing oil sample carrying out analysis when judging, the oil sealed sampling device using method of the present embodiment is as follows: 1, open the hole that fire wall 3 is offered, and the oil sample pipeline 6 of this oil sealed sampling device and rapid-acting coupling 5 are entered this large-scale power transformer 2 region through fire wall 3; 2, rapid-acting coupling 5 accessed on the body sampling valve 1 ' of power transformer 2 rapidly, open the switch 11 of body sampling valve 1 ', personnel withdraw this region; 3, sampling personnel are outer by regulating the valve 7 of this oil sealed sampling device to carry out flushing device and operation of drawing oil sample at fire wall 3; 4, sampling terminates the valve 7 of rear this oil sealed sampling device of closedown, and after this large-scale power transformer 2 Failure elimination, personnel take off this oil sealed sampling device at transformer region of being allowed for access, and recover the original state of this large-scale power transformer 2.
Oil sealed sampling device of the present utility model is compared with traditional sampling instrument, achieve being separated of people and equipment, shorten sampling personnel with fire wall 3 in and duration of contact of large-scale power transformer 2, well ensure that the personal safety of personnel, simultaneously, the sealing property of sampling line 6 and each joint thereof is improved, and ensures the accuracy of oil sample.Oil sealed sampling device of the present utility model has carried out functional verification on main transformer spare phase, sealing property and rapid and convenient sexual satisfaction user requirement, for the judgement of certain nuclear power transformer fault character and high-speed decision save the time, farthest protects Employee Security.
On the valve nozzle of the body sampling valve that current common large-scale power transformer is equipped with, part is provided with the connecting portion for being connected with oil sealed sampling device, only needs to be designed to by connected for rapid-acting coupling the second connecting portion oil sealed sampling device of the present utility model can be utilized to sample with its adaptation.If valve nozzle does not possess the connecting portion be connected with oil sealed sampling device, only need to provide for simple replacement of body sampling valve.Once the connecting portion of body sampling valve is carried out standardizing or standardization, rapid-acting coupling can be carried out process and remould according to different body oil sample valve models by staff, only need design different rapid-acting coupling, during use, only need change different rapid-acting coupling, it just can be made to be applicable to multiple different model, the transformer of producer draws oil sample work.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, also can make a lot of form, these all belong within protection of the present utility model.
Claims (8)
1. the oil sealed sampling device of a large-scale power transformer, for drawing oil sample to power transformer (2), described power transformer (2) is arranged in fire wall (3), and the valve nozzle (12 ') of the body sampling valve (1 ') of correspondence is provided with the first connecting portion, it is characterized in that, comprising: rapid-acting coupling (5), oil sample pipeline (6), valve (7);
The first end of described rapid-acting coupling (5) has second connecting portion suitable with described first connecting portion, and the second end has three connecting portion suitable with described oil sample pipeline (6);
The first end of described oil sample pipeline (6) is connected with described valve (7), second end is connected with described rapid-acting coupling (5) by described 3rd connecting portion, and the length of described oil sample pipeline (6) is more than or equal to the distance of described rapid-acting coupling (5) to described fire wall (3).
2. oil sealed sampling device according to claim 1, it is characterized in that, described first connecting portion is external thread structure (121 '), and described second connecting portion is the female thread structure (51) suitable with described external thread structure (121 ').
3. oil sealed sampling device according to claim 1, it is characterized in that, described 3rd connecting portion has check groove (52), the shape size of described check groove (52) and described oil sample pipeline (6) suitable to make described oil sample pipeline (6) can be plugged on described check groove (52).
4. oil sealed sampling device according to claim 1, is characterized in that, described oil sample pipeline (6) comprises oil resistant flexible pipe, copper pipe line.
5. oil sealed sampling device according to claim 1, is characterized in that, during use, described valve (7) is positioned at the outside of the described fire wall (3) corresponding to power transformer (2) drawn oil sample.
6. oil sealed sampling device according to claim 1, is characterized in that, the second end of described rapid-acting coupling (5) is threaded for union.
7. oil sealed sampling device according to claim 1, is characterized in that, whether described body sampling valve (1 ') also comprises flows out and the switch of the rate of outflow (11) for controlling oil sample.
8. oil sealed sampling device according to claim 1, is characterized in that, described fire wall (3) offers the hole for passing to described oil sample pipeline (6) and described rapid-acting coupling (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247427.1U CN204612970U (en) | 2015-04-22 | 2015-04-22 | A kind of oil sealed sampling device of large-scale power transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247427.1U CN204612970U (en) | 2015-04-22 | 2015-04-22 | A kind of oil sealed sampling device of large-scale power transformer |
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| CN204612970U true CN204612970U (en) | 2015-09-02 |
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| CN201520247427.1U Active CN204612970U (en) | 2015-04-22 | 2015-04-22 | A kind of oil sealed sampling device of large-scale power transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878961A (en) * | 2023-09-06 | 2023-10-13 | 保定变压器有限公司 | Extra-high voltage transformer oil sampling valve external guiding device |
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2015
- 2015-04-22 CN CN201520247427.1U patent/CN204612970U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878961A (en) * | 2023-09-06 | 2023-10-13 | 保定变压器有限公司 | Extra-high voltage transformer oil sampling valve external guiding device |
| CN116878961B (en) * | 2023-09-06 | 2023-11-17 | 保定变压器有限公司 | Extra-high voltage transformer oil sampling valve external guiding device |
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