CN108106908A - Method for uniformly wetting oil-impregnated paper - Google Patents

Method for uniformly wetting oil-impregnated paper Download PDF

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Publication number
CN108106908A
CN108106908A CN201711174397.6A CN201711174397A CN108106908A CN 108106908 A CN108106908 A CN 108106908A CN 201711174397 A CN201711174397 A CN 201711174397A CN 108106908 A CN108106908 A CN 108106908A
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China
Prior art keywords
paper
oil
moisture
jaw bottle
content
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CN201711174397.6A
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CN108106908B (en
Inventor
刘磊
罗兵
厉天威
唐力
廖帆
廖一帆
张福增
王婷婷
郑重
孙梦
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China South Power Grid International Co ltd
North China Electric Power University
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China South Power Grid International Co ltd
North China Electric Power University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/30Staining; Impregnating ; Fixation; Dehydration; Multistep processes for preparing samples of tissue, cell or nucleic acid material and the like for analysis

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

The invention discloses a method for uniformly wetting oil-impregnated paper, which comprises the steps of firstly preparing anhydrous oil and paper, then weighing water with required mass and adding the water into the oil, uniformly mixing the oil and the paper by using an ultrasonic oscillation method, then adding the paper with required mass, and uniformly distributing water in the paper by using the ultrasonic oscillation method, thereby achieving the purpose of rapidly preparing the paper with specified water content.

Description

A kind of oil-paper is uniformly by humidifying method
Technical field
The present invention relates to paper technology field, more particularly to oil-paper uniformly by humidifying method.
Background technology
Oil-paper makes moist in existing research, and there are two types of modes:When paper is dipped in oil, exposed to certain humidity In air, water content in oil is controlled by controlling in air humidity, and then controls the moisture in paper.Another kind is that oil-paper is straight It connects and is placed in climatic chamber, the air environment of construction of stable, paper is contacted directly with air, using air as propagation moisture Medium so that the uniform moisture absorption of paper test product, to reach required humidity requirement.Second actually be also first way improvement Version is analyzed below mainly for second method (gas passes wet).Although this method can obtain uniform moisture distribution Oil-paper sample, but adjustable humidity is minimum can only achieve 20%, it is impossible to meet the condition of making moist that humidity is less than 20%.It is and actual In work, the water content of paper usually may require that no more than 5%.Simultaneously as moisture immersion is a slow process, use Operating time daily calculates, and takes time and effort very much.In addition, single babinet can only control an independent fixed humidity, for needing The research of multigroup damp condition is wanted, required experimental facilities demand is big, and utilization is insufficient, makes slow progress.With five conventional Exemplified by the experiment condition of moisture concentration variable, if using climatic chamber, it is necessary to 5 instruments simultaneously, set 5 different humidities, It works time a couple of days.Assuming that number of devices is limited, then experimental period can be doubled and redoubled, and integral experiment efficiency is directly and available devices Quantity is just.
It is desirable to have a kind of oil-paper uniformly to be solved problems of the prior art by humidifying method.
The content of the invention
Uniformly reached big moisture distribution, accurate moisture by humidifying method it is an object of the invention to provide a kind of oil-paper Quantitative, rapid and convenient, more specifications batch prepares the effect of the paper of various moistures.
The present invention provides a kind of oil-paper uniformly by humidifying method, comprises the following steps:Comprise the following steps:First, measure Existing paper and water content in oil content, it is assumed that moisture is b in paper, and insulating oil moisture concentration is a, weighs X*Y*Z, wherein Long X wide Y thickness Z, the oil-paper of specification several, record weight is γ, according to hard copy body oil content, calculates corresponding specification size Actual pure paper weight γ ' and oil content γ-γ ' is put into jaw bottle A and is sealed;
Secondly, using the drawing liquid body acupuncture cylinder of μ l specifications, the pure oil α (ml) of known moisture levels is extracted, injects empty jaw bottle B In;
Then according to moisture concentration needed for paper, it is assumed that for c%, calculate the actual water content of paper in jaw bottle, be γ * Water content in b%g and α ml oil is a* α, makees difference and solves the drawing liquid body that the moisture β added in is needed to utilize μ l specifications Syringe extracts β pure water;
Jaw bottle B with Xi Gai is sealed afterwards, is positioned in supersonic generator, forceps after the ultrasonication stipulated time Mouth bottle B simultaneously breaks a seal, and the test product taking-up in A bottles is put into B, B bottles of sealing is simultaneously placed again into supersonic generator, ultrasonication It is taken out after stipulated time, paper is taken to measure moisture.
The invention discloses a kind of oil-paper using supersonic oscillations effect uniformly by humidifying method, advantageous effect is:
1) moisture in accurate control paper is realized.Former method relies on the free diffusing of moisture, and balancing speed is slow, puts down Weighing apparatus point concentration can only detect afterwards without holding.And this method accurate in advance can calculate moisture.
2) moisture in a wide range of control paper is realized.Former method is minimum can only to control the moisture for reaching 20% to contain Amount, and this method can reach arbitrary value.
3) realize prepared by quick paper.Former method prepares a kind of paper and usually requires several days time.And this method only needs It can complete within 10 minutes.
4) batch processing of different in moisture content paper is realized.Former one equipment of method can only once provide a concentration ring Border can only prepare a kind of paper of moisture.And this method can be simultaneously to multiple reaction utensils on a supersonic generator It is operated, the moisture in each reaction utensil can be controlled individually, can carry out batch processing, further save the operating time.
Description of the drawings
Fig. 1 is the oil-paper using supersonic oscillations effect uniformly by the flow chart of humidifying method.
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class As label represent same or similar element or there is same or like element.Described embodiment is the present invention Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
The technique preparation of the application is to need to detect moisture in specific temperature low suspension water, oil, the ratio of paper and paper Relation, formulate corresponding suspended water curve.Moisture curve is all based on what dissolving moisture was formulated in available data, it is impossible to use In the application.When needing to detect the supersonic oscillations for applying different capacity under different temperatures simultaneously between water in suspension, oil, paper Equilibration time is maximized after considering certain nargin.
The operating process for formulating the paper for specifying moisture may be summarized to be:Measure, weigh, calculating, take oil, calculate, Water intaking, liquefaction sample, ultrasonic oscillation, pattern processed, ultrasonic oscillation, sampling and testing.
First, existing paper and water content in oil content are measured, it is assumed that in paper moisture be b (%), insulating oil moisture Concentration is a (ppm).Weigh X*Y*Z (long X wide Y thickness Z, mm3) specification oil-paper several, record weight be γ (g), according to Hard copy body oil content calculates the actual pure paper weight γ ' (g) of corresponding specification size and oil content (γ-γ ') (g), is put into pincers Mouth bottle A is sealed.
Secondly, using the drawing liquid body acupuncture cylinder of μ l specifications, the pure oil α (ml) of known moisture levels is extracted, injects empty jaw bottle B In.
Then according to moisture concentration needed for paper, it is assumed that for c (%), calculate the actual water content of paper in jaw bottle, be γ * Water content in b (%) (g) and α (m l) oil is a* α (n l), makees difference and solves the moisture β (μ l) for needing to add in, profit With the drawing liquid body acupuncture cylinder of μ l specifications, β (μ l) pure water is extracted.
Jaw bottle B with Xi Gai is sealed afterwards, is positioned in supersonic generator, forceps after the ultrasonication stipulated time Mouth bottle B simultaneously breaks a seal, and the test product taking-up in A bottles is put into B, B bottles of sealing is simultaneously placed again into supersonic generator, ultrasonication It is taken out after stipulated time, paper is taken to measure moisture.
The method of the present invention and conventional method it is most important difference lies in:Conventional method thinks that water must be first dissolved in oil, Entered again by oil inside paper, only in this way, can be only achieved moisture being uniformly distributed in paper.It is molten due to water content in oil Solution degree is very low, and the limiting value under room temperature is 30ppm, and the moisture for wanting paper is allowed to reach 5% is a slowly mistake Journey.However, the internal microstructure of the aqueous paper obtained by carefully analyzing research different approaches, finds the water dissolved in oil The microscopic pattern divided after entering paper with the moisture to suspend in oil is consistent, and there is no the difference in microstructure between the two. In addition, (normal including volume resistivity, surface resistivity, dielectric to macroscopical electrical characteristic of the aqueous paper of different approaches acquisition Number, dielectric loss, volume breakdown electric field, surface breakdown electric field etc.) it is detected, as long as finding that moisture is consistent, macroscopic view Electrical characteristic is also without significant difference, therefore it is considered that moisture can be distributed in oil by the method for supersonic oscillations, Suspension water droplet of the diameter below micron is formed, then moisture is further distributed into paper with the method for supersonic oscillations. Since the content of water in suspension in oil can reach very big (close to 100%), and the process of supersonic oscillations is also quickly, Ke Yida To the purpose of the paper of the standby specified moisture of convenient, fast, precision system.
It is last it is to be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that:It is still It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced It changes;And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution God and scope.

Claims (1)

1. a kind of oil-paper is uniformly by humidifying method, which is characterized in that comprises the following steps:First, existing paper and oil are measured Middle moisture, it is assumed that moisture is b in paper, and insulating oil moisture concentration is a, X*Y*Z is weighed, wherein long X wide Y thickness Z, specification Oil-paper several, record weight is γ, according to hard copy body oil content, calculates the actual pure paper weight of corresponding specification size γ ' and oil content γ-γ ' is put into jaw bottle A and is sealed;
Secondly, using the drawing liquid body acupuncture cylinder of μ l specifications, the pure oil α (ml) of known moisture levels is extracted, is injected in empty jaw bottle B;
Then according to moisture concentration needed for paper, it is assumed that for c%, the actual water content of paper in jaw bottle is calculated, is γ * b%g, And the water content in α ml oil, it is a* α, makees difference and solve the drawing liquid body acupuncture cylinder that the moisture β added in is needed to utilize μ l specifications, Extract β pure water;
Jaw bottle B with Xi Gai is sealed afterwards, is positioned in supersonic generator, jaw bottle is taken out after the ultrasonication stipulated time B simultaneously breaks a seal, and the test product taking-up in A bottles is put into B, and B bottles of sealing is simultaneously placed again into supersonic generator, ultrasonication regulation It is taken out after time, paper is taken to measure moisture.
CN201711174397.6A 2017-11-22 2017-11-22 Method for uniformly wetting oil-impregnated paper Active CN108106908B (en)

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CN108106908B CN108106908B (en) 2020-10-16

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104198896A (en) * 2013-12-05 2014-12-10 国家电网公司 Comprehensive monitoring device and comprehensive monitoring method for partial discharge of oil immersed transformer
CN206161499U (en) * 2016-10-28 2017-05-10 南方电网科学研究院有限责任公司 Transformer bushing environment simulation system that wets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104198896A (en) * 2013-12-05 2014-12-10 国家电网公司 Comprehensive monitoring device and comprehensive monitoring method for partial discharge of oil immersed transformer
CN206161499U (en) * 2016-10-28 2017-05-10 南方电网科学研究院有限责任公司 Transformer bushing environment simulation system that wets

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
齐波等: "潮气侵入对油浸纸套管电气特性的影响", 《高电压技术》 *

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