CN207866566U - Transformer oil vacuum quantitative sampling instrument - Google Patents

Transformer oil vacuum quantitative sampling instrument Download PDF

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Publication number
CN207866566U
CN207866566U CN201820323734.7U CN201820323734U CN207866566U CN 207866566 U CN207866566 U CN 207866566U CN 201820323734 U CN201820323734 U CN 201820323734U CN 207866566 U CN207866566 U CN 207866566U
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China
Prior art keywords
transformer oil
vacuum cylinder
vacuum
sampling instrument
fuel tank
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CN201820323734.7U
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Chinese (zh)
Inventor
田仁杰
梁水康
唐荣喜
李流洋
罗树刚
冯园田
韦俏岚
郑美姣
潘晓
刘秀毛
车跃
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Guilin Power Supply Bureau of Guangxi Power Grid Co Ltd
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Guilin Power Supply Bureau of Guangxi Power Grid Co Ltd
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Abstract

The utility model is related to transformer maintenance technology fields, disclose a kind of transformer oil vacuum quantitative sampling instrument, the transformer oil vacuum quantitative sampling instrument of the utility model, the transformer oil of the fuel tank internal for fast quantification extraction transformer comprising vacuum cylinder, sealing cover.Vacuum cylinder bottom lock open top, sealing cover size match with vacuum cylinder open top, can clasp open top just and seal vacuum cylinder.A part at the top of sealing cover is rubber membrane.The sampling instrument connects fuel tank by band needle hose, and air pressure is 0 or close to 0 in vacuum cylinder, connects automatic sucking transformer oil after fuel tank.The vacuum cylinder neck is cased with plastic hoop, is integrally formed with clip on the outside of plastic hoop.When sampling, opposite fuel tank internal is negative pressure inside vacuum cylinder, and transformer oil can be along conduit automatically into vacuum cylinder.The transformer oil vacuum quantitative sampling instrument of the utility model has the characteristics that quick, accurate, free of contamination.

Description

Transformer oil vacuum quantitative sampling instrument
Technical field
The utility model is related to transformer maintenance technology fields, more particularly to transformer oil quantitative sampling tool.
Background technology
In order to carry out maintenance management running transformer oil, need periodically or non-periodically to be tested, to transformer It is essential that oil, which is sampled inspection,;It purchases when fresh oil replaces old oil and also wants sampling and testing.
Transformer oil vacuum sample is typically all to take multigroup representative data to be analyzed, therefore every sub-sampling is most It is quantitative well.In order to ensure that the oil plant in the transformer oil sample got and fuel tank is the same, it should avoid transformer as possible Oil is contacted with pollution sources such as air, so the path of sampling process oil plant need to be closed.
But in concrete operations, being influenced by sampling instrument and operator's professional standards, sampling quality is always irregular, The oil mass mainly sampled is difficult to hold by naked eyes, and in addition existing sampling method is difficult that oil plant is avoided to be contacted with air, causes sample Product oil and the oil plant in oil tank of transformer are inconsistent.
Domestic patent database discloses some transformer oil sampling instruments, such as:【Title】Transformer oil sampler, 【Application number】CN201220075915.5,【The applying date】2012.03.02 it includes becoming to disclose a kind of transformer oil sampler Depressor, sampling bottle, vacuum-pumping container are provided on transformer fuel outlet and take oily total valve, take oily total valve by threeway with Sampling valve connects, and sampling valve is connected to by one end of probe tube, and the other end of probe tube is arranged after vacuum-pumping container to be taken In sample bottle, the inlet of vacuum-pumping container is provided with screwing hermetic blind nut, and the outlet of vacuum-pumping container and the bottleneck of sampling bottle are close Envelope links together, and pump bowl is provided on the side wall of vacuum-pumping container, and blowdown valve is provided on the middle port of threeway.It should Utility model ensure that the consistency for being removed sample and original, but device is more complicated, and operation is also not easy, especially very Difficult fast quantification sampling.
For another example:【Title】A kind of transformer oil quantitative sampling tool,【Application number】CN201520382204.6,【The applying date】 2015.06.04, a kind of transformer oil quantitative sampling tool, including bottom plate and syringe are disclosed, bottom plate is equipped with ontology and report Alert system;The ontology offers through-hole, and the syringe in syringe is socketed and is fixed in the first through hole, needle in syringe Entrance on cylinder reaches outside the first through hole, and it is logical that the push rod in syringe can reach first across the first through hole Outside hole;The alarm system includes microswitch, power supply and alarm, and microswitch is fixed on the bottom plate, and power supply, micro- Dynamic switch and alarm are connected in series with, and the axis of microswitch and push rod in syringe is on the same line.The utility model can Accurately to complete the quantitative sampling of transformer oil, but structure is relative complex, is unfavorable for fast sampling;And it is collected transformer It is placed in syringe, needs to shift again, it is most likely that by air pollution in transfer process.
Therefore, existing transformer oil sampling instrument is difficult to accomplish pollution-free fast quantification sampling, is required further improvement.
Invention content
The shortcomings that the purpose of the utility model is to overcome existing transformer oil sampling instruments and deficiency provide a kind of no dirt Contaminate the transformer oil vacuum quantitative sampling instrument of fast quantification sampling.
To achieve the goals above, the utility model provides the following technical solutions:
The transformer oil vacuum quantitative sampling instrument of the utility model, the fuel tank internal for fast quantification extraction transformer Transformer oil comprising vacuum cylinder, sealing cover.Vacuum cylinder bottom lock open top, sealing cover size and vacuum cylinder top Opening matches, and can clasp open top just and seal vacuum cylinder.A part at the top of sealing cover is rubber membrane.This takes Sample tool connects fuel tank by band needle hose, and air pressure is 0 or close to 0 in vacuum cylinder, connects automatic sucking transformation after fuel tank Device oil.The vacuum cylinder neck is cased with plastic hoop, is integrally formed with clip on the outside of plastic hoop.
The design principle of the utility model is:Sampler uses vacuum structure, relatively oily inside vacuum cylinder after being connected to fuel tank It is negative pressure inside case, transformer oil can be along conduit automatically into vacuum cylinder, and easy to operate, sampling is quick.Vacuum cylinder is both to take Sample tool is also sample storage tool, need not shift transformer oil, avoid secondary pollution.
Furthermore transformer is commonly mounted in eminence, and it is that sampling instrument is provided with folder that sampling personnel, which need operation of ascending a height, this programme, Vacuum cylinder can be clipped in the places such as pocket, waistband, is convenient for carrying by son.
And since vacuum cylinder either can be filled up or be essentially filled with to air pressure close to 0 transformer oil for 0 in vacuum cylinder, Its volume size is sample size or close to sample size, realizes quantitative sampling.
As the further explanation of the utility model, protective case is equipped with outside the vacuum cylinder.The protective case is by left and right Two blocks of soft cloths are adjacent to be sewed, and the edge of left side soft cloth is provided with velcro front, and the edge of the right soft cloth is provided with magic Reverse side is pasted, the suture of two blocks of soft cloths is also provided with clip mouth.In use, velcro positive and negative mutually bonds, two blocks of soft cloths close up It forms protective case and protects vacuum cylinder, clip is leant out from clip mouth.So set, on the one hand can prevent vacuum cylinder from sampling or taking It is broken during band, another aspect magic tape structure is also conducive to install or take out vacuum cylinder, is conveniently operated.
As the further explanation of the utility model, the band needle hose includes conduit and needle thorn portion, pipe aperture size Match with oil tank of transformer delivery outlet, needle thorn portion is hollow plastic material pin.Band needle hose is used to, across rubber membrane, be connected to vacuum cylinder And fuel tank.
As the further explanation of the utility model, the rubber membrane is provided in sealing one soft area of upper part of the cover, It can be penetrated by the needle thorn portion with needle hose.
As the further explanation of the utility model, the delivery outlet for connecting fuel tank by valve with needle hose.Setting Valve keeps sampling process more controllable, and transformer oil is avoided to leak out pollution environment.
As the further explanation of the utility model, the band needle hose its needle thorn portion tail end is equipped with cross bar, the cross bar with Needle thorn portion is integrally formed.So set, preventing needle thorn portion from submerging completely influences air-tightness in vacuum cylinder.
As the further explanation of the utility model, the vacuum cylinder air pressure inside is not higher than 0.02 standard atmospheric pressure, So ensure that transformer oil can automatically flow into vacuum tube.
As the further explanation of the utility model, it is provided with the two rows of anti-slop serrations in left and right on the inside of the clip, can enhance The clamping effect of clip reduces the probability that vacuum cylinder is fallen from pocket or waistband.
As the further explanation of the utility model, the sampling capicity of the vacuum cylinder is 40ml, to meet most of become The sample oil mass requirement that depressor oil is examined.
Compared with prior art, the utility model has the beneficial effects that:
(1)Sampler uses vacuum structure, and after being connected to fuel tank, opposite fuel tank internal is negative pressure, transformer inside vacuum cylinder Oil can be along conduit automatically into vacuum cylinder, and easy to operate, sampling is quick.
(2)Vacuum cylinder is both that need not be shifted transformer oil using tool and sample storage tool, be avoided secondary pollution.
(3)Sampler, which is adopted, is provided with clip and protective case, is convenient for carrying, durable.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments:
Fig. 1 is the structural schematic diagram of the utility model transformer oil vacuum quantitative sampling instrument.
Fig. 2 is the transformer oil vacuum quantitative sampling instrument structural schematic diagram with protective case.
Fig. 3 is the deployed configuration schematic diagram with protective case.
Fig. 4 is the usage state diagram of the utility model transformer oil vacuum quantitative sampling instrument.
In figure, 1 --- vacuum cylinder;2 --- sealing cover;3 --- rubber membrane;4 --- plastic hoop;5 --- clip;6—— Protective case;7 --- band needle hose;8 --- fuel tank;9 --- valve;601 --- soft cloth;602 --- velcro front; 603 --- velcro reverse side;604 --- clip mouth.
Specific implementation mode
The utility model is further illustrated below in conjunction with the accompanying drawings.
Referring to figs. 1 to Fig. 4, the transformer oil vacuum quantitative sampling instrument of the utility model becomes for fast quantification extraction Transformer oil inside the fuel tank 8 of depressor comprising vacuum cylinder 1, sealing cover 2.Vacuum cylinder bottom lock open top, sealing cover Size matches with vacuum cylinder open top, can clasp open top just and seal vacuum cylinder.One at the top of sealing cover Part is rubber membrane 3.The sampling instrument connects fuel tank 8 by band needle hose 7, and air pressure is 0 or close to 0 in vacuum cylinder 1, is connect Automatic sucking transformer oil after logical fuel tank 8.1 neck of the vacuum cylinder is cased with plastic hoop 4,4 outside of plastic hoop and 5 one of clip at Type.
As shown in Fig. 2, 1 outside of the vacuum cylinder is equipped with protective case.As shown in figure 3, the protective case is soft by two pieces of left and right Cloth 601 is adjacent to be sewed, and the edge of left side soft cloth is provided with velcro front 602, and the edge of the right soft cloth is provided with magic Reverse side 603 is pasted, the suture of two blocks of soft cloths 601 is also provided with clip mouth 604.In use, velcro positive and negative mutually bonds, two pieces Soft cloth 601, which closes up, to be formed protective case and protects vacuum cylinder 1, and clip 5 is leant out from clip mouth 604.
As shown in figure 4, the band needle hose 7 includes conduit and needle thorn portion, pipe aperture size is exported with oil tank of transformer Mouth matches, and needle thorn portion is hollow plastic material pin.Band needle hose 7 is for across rubber membrane 3, being connected to vacuum cylinder 1 and fuel tank 8.It is described Rubber membrane 3 is provided in a soft area of 2 top center of sealing cover, can be penetrated by the needle thorn portion with needle hose.The band needle Hose 7 connects the delivery outlet of fuel tank 8 by valve 9.Its needle thorn portion tail end of the band needle hose 7 is equipped with cross bar, the cross bar and needle Thorn portion is integrally formed.1 air pressure inside of the vacuum cylinder is not higher than 0.02 standard atmospheric pressure.5 inside of the clip is provided with a left side Right two rows anti-slop serrations.The sampling capicity of the vacuum cylinder 1 is 40ml.
The application method of the transformer oil vacuum quantitative sampling instrument of this utility model is as follows:
(1)Connect fuel tank:Band needle hose 7 connects fuel tank 8 by valve 9;
(2)It drains the oil in advance:Valve 9 is opened, if the enough height of liquid level in fuel tank, because of gravity, transformer oil can be along Band needle hose 7 slowly flows down, and when the needle thorn portion of the fast elution band needle hose of transformer oil, closes valve 9, and it is soft slightly to lift band needle Needle thorn portion one end of pipe 7, avoids transformer oil from overflowing;If liquid level is not high enough in fuel tank, transformer oil can not flow out automatically, use Hand compressive zone needle hose, squeezes out inner air tube from top to down, and transformer oil can be slowly flowed down along band needle hose 7 until needle pierces Portion.
(3)Connect vacuum cylinder:Needle thorn portion with needle hose 7 is inserted into vacuum cylinder 1;
(4)Formally drain the oil:Valve 9 is opened, since the opposite fuel tank internal in 1 inside of vacuum cylinder is negative pressure, transformer oil can edge Conduit closes valve 9 automatically into vacuum cylinder, waiting for filling oil in cylinder;
(5)Tidy up sampling instrument:Extract band needle hose 7, vacuum cylinder 1 because rubber membrane 3 elastic reaction, automatic-sealed, Vacuum cylinder 1 can be directly sandwiched on pocket or waistband;Band needle hose is removed from fuel tank 8 again, is cleaned out.
Obviously, above-described embodiment illustrates the utility model example just for the sake of clear, and not to implementing Restriction.For the those of ordinary skill in the field, other not similar shapes can also be made on the basis of the above description The variation or variation of formula.There is no necessity and possibility to exhaust all the enbodiments.And it thus amplifies out aobvious and easy Among the variation or variation seen are still in the scope of protection of the utility model.

Claims (9)

1. a kind of transformer oil vacuum quantitative sampling instrument, the fuel tank for fast quantification extraction transformer(8)Internal transformation Device oil comprising vacuum cylinder(1), sealing cover(2);Vacuum cylinder bottom lock open top, sealing cover size and vacuum cylinder top Opening matches, and can clasp open top just and seal vacuum cylinder;A part at the top of sealing cover is rubber membrane(3); It is characterized in that:The sampling instrument passes through band needle hose(7)Connect fuel tank(8), vacuum cylinder(1)Interior air pressure be 0 or close to 0, connect fuel tank(8)Automatic sucking transformer oil afterwards;The vacuum cylinder(1)Neck is cased with plastic hoop(4), plastic hoop(4)Outside With clip(5)It is integrally formed.
2. transformer oil vacuum quantitative sampling instrument according to claim 1, it is characterised in that:The vacuum cylinder(1)Outside Portion is equipped with protective case;The protective case is by the two blocks of soft cloths in left and right(601)Adjacent to sew, the edge of left side soft cloth is provided with evil spirit Art patch front(602), the edge of the right soft cloth is provided with velcro reverse side(603), two blocks of soft cloths(601)Suture be also provided with Clip mouth(604);In use, velcro positive and negative mutually bonds, two blocks of soft cloths(601)Close up and to form protective case and protect vacuum cylinder (1), clip(5)From clip mouth(604)It leans out.
3. transformer oil vacuum quantitative sampling instrument according to claim 2, it is characterised in that:The band needle hose(7) Including conduit and needle thorn portion, pipe aperture size matches with oil tank of transformer delivery outlet, and needle thorn portion is hollow plastic material pin;Band needle Hose(7)For passing through rubber membrane(3), it is connected to vacuum cylinder(1)And fuel tank(8).
4. transformer oil vacuum quantitative sampling instrument according to claim 3, it is characterised in that:The rubber membrane(3)It is It is arranged in sealing cover(2)One soft area of top center can be penetrated by the needle thorn portion with needle hose.
5. transformer oil vacuum quantitative sampling instrument according to claim 4, it is characterised in that:The band needle hose(7) Pass through valve(9)Connect fuel tank(8)Delivery outlet.
6. transformer oil vacuum quantitative sampling instrument according to claim 5, it is characterised in that:The band needle hose(7) Its needle thorn portion tail end is equipped with cross bar, which is integrally formed with needle thorn portion.
7. transformer oil vacuum quantitative sampling instrument according to claim 6, it is characterised in that:The vacuum cylinder(1)It is interior Portion's air pressure is not higher than 0.02 standard atmospheric pressure.
8. transformer oil vacuum quantitative sampling instrument according to claim 7, it is characterised in that:The clip(5)Inside It is provided with the two rows of anti-slop serrations in left and right.
9. transformer oil vacuum quantitative sampling instrument according to claim 8, it is characterised in that:The vacuum cylinder(1)'s Sampling capicity is 40ml.
CN201820323734.7U 2018-03-09 2018-03-09 Transformer oil vacuum quantitative sampling instrument Active CN207866566U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820323734.7U CN207866566U (en) 2018-03-09 2018-03-09 Transformer oil vacuum quantitative sampling instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820323734.7U CN207866566U (en) 2018-03-09 2018-03-09 Transformer oil vacuum quantitative sampling instrument

Publications (1)

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CN207866566U true CN207866566U (en) 2018-09-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112611602A (en) * 2020-11-26 2021-04-06 重庆大学 Negative pressure heat insulation sampler for lubricating oil sampling
CN113295482A (en) * 2021-04-01 2021-08-24 浙江大学 Full-automatic toxin draws and detects integration instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112611602A (en) * 2020-11-26 2021-04-06 重庆大学 Negative pressure heat insulation sampler for lubricating oil sampling
CN113295482A (en) * 2021-04-01 2021-08-24 浙江大学 Full-automatic toxin draws and detects integration instrument

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