CN103454047A

CN103454047A - Liquid leakage detection line

Info

Publication number: CN103454047A
Application number: CN2013100468515A
Authority: CN
Inventors: 林哲洋; 宫田康司
Original assignee: Tatsuta Electric Wire and Cable Co Ltd
Current assignee: Tatsuta Electric Wire and Cable Co Ltd
Priority date: 2012-05-28
Filing date: 2013-02-05
Publication date: 2013-12-18
Anticipated expiration: 2033-02-05
Also published as: JP2013246066A; JP5964656B2; CN103454047B; CN203287166U

Abstract

The invention provides a liquid leakage detection line, which can be used to determine the coloring of covering parts 12 in a liquid leakage detection line P used for coloring the covering parts 12 of a liquid leakage detection conductor 11. The liquid leakage detection line P is formed by covering the braided fabric covering part 12 on the conductor 11, and intertwisting three covering conductors 10 together to form an external braided fabric 14. The braided fabric covering parts 12,12,12 are respectively yellow, red, and blue (see Figure a). When the liquid passes through the external braided fabric 14 (see Figure a), the colors of the braided fabric covering parts 12 can occur in a spiral shape, and therefore the leaked liquid and the position thereof can be determined. At the same time, according to the embodiment 4, the yellow color can make the red color and the blue color prominent, and therefore the discrimination degree of the liquid leakage part can be increased.

Description

The leakage detection line

Technical field

The leakage detection line that leakage while the present invention relates to storage to the leaking of interior of building, liquid etc., carrying is detected.

Background technology

For storeroom of computer room, various data etc. etc., if the attached water or leak such as at the wall of interior of building, ground, various device surface, pipe arrangement junction surface, likely cause the burn into various device generation maloperation such as constructure ground or data to occur rotten.In addition, at storage or while carrying the such various liquid of the chemical class such as water, sulfuric acid, hydrochloric acid, the leakage of its liquid can become the reason of economic loss, accident.

Therefore, as detection leak, the method for leakage (hereinafter both all being called to " leakage "), carry out following method: add the leakage detection line at wall of interior of building etc. and detect its leakage.

As this leakage detection line, leakage detection line P ' is for example arranged, it forms as follows: as shown in Figure 7, utilize respectively braid 2 to cover pair of conductors (electrode) 1,1, make color development line (chromogen) 3 further utilize outside braid 4 to be covered (with reference to patent documentation 1 along this coated electrode 1 and at its outer peripheral face, utility model logon right claim, page right hurdle, the 22nd row ~ 2nd, the 2nd page of left hurdle (the 3rd hurdle) (the 4th hurdle) 42 row, Fig. 1).

With regard to this leakage detection line P ', if generation leakage, above-mentioned two

braids

2,4 catch this leakage, are situated between and by this leakage, 1,1 of conductor are short-circuited (resistance variations that conductor is 1,1), utilize by the electric signal of this short circuit (variation) generation and detect leakage.Now, because two

braids

2,4 catch leakage reliably, so accuracy of detection is high.In addition, because leakage causes the colorant stripping of color development line 3, be exuded to outside braid 4, therefore, by confirming the outside braid 4 of this painted (color development), thereby can confirm the leakage position.

In addition, also have in the leakage detection line P ' of this Fig. 7, in the situation that along color development line 3, do not make by imbibition and see through the leakage detection line P ' (with reference to Fig. 3) that outside braid 4 obtains.With regard to this leakage detection line P ', if the generation leakage, similarly, two

braids

2,4 catch this leakage, Jie is short-circuited (resistance variations that conductor is 1,1) 1,1 of conductor by this leakage, utilizes by the electric signal of this short circuit (variation) generation and detects leakage.Now, inboard braid 2 is colored, if 4 imbibitions of outside braid see through, so the color of its inboard braid 2 appears and can confirm its leakage position (with reference to patent documentation 2, utility model logon right claim, Fig. 2 etc.).

Patent documentation

Patent documentation 1: Japan opens clear 59-155536 communique in fact

Patent documentation 2: Japanese Patent Publication 01-89351 communique

Patent documentation 3: TOHKEMY 2002-277341 communique

Summary of the invention

The above-mentioned detection line of the leakage along color development line 3 P ' has following problem: once if wetting or leakage occurs and make colorant be exuded to outside by rainwater etc. before laying, outside braid 4 can't return to uncoloured state.

On the other hand, inboard braid 2 is carried out to painted leakage detection line P ' even by wetting or generation leakages such as rainwater, as long as this liquid dried, seeing through also of outside braid 4 disappears, and returns to the leakage detected state.

Yet, in the past, the painted of its inboard braid 2 is for example red or blue a kind of color, the color identification that utilization sees through by the outside braid 4 due to imbibition its inboard braid 2 carried out is also insufficient, especially, if leakage is wide region, because of on the whole can be light see that the color of inner braid 2 causes the situation of None-identified leakage self a lot.With regard to this situation, if it is dark that environment is set, this tendency performance significantly.

In view of this actual conditions, in the present invention's leakage detection line painted with the covering section making to detect conductor, while being easy to confirm leakage, its covering section is colored as problem.

In order to realize above-mentioned problem, in the present invention, make the painted difference of the covering section of above-mentioned a plurality of detection conductors.

If the painted difference of each covering section, when the color of its each covering section causes seeing through outside braid because of leakage, compare with the state do not appeared before leakage, the outward appearance of leakage detection line is obviously different, can confirm its leakage position.

As formation of the present invention, can adopt following formation: at least two conductors form respectively covering section and arrange, the outside braid seen through when the periphery of this covering conductor is utilized to imbibition in length range is covered, imbibition by this outside braid changes the resistance value between each conductor, wherein, the covering section of above-mentioned each conductor has been implemented different painted separately.

The covering section of conductor can be braid, become liquid permeability for braid the time, the fiber yarn of this braid can be any in hydroscopicity (water wettability), non-hygroscopic (hydrophobicity), and in non-absorptive situation, sparse and can keep in the gap of braid liquid (can be made into liquid permeability) by making braid.With regard to outside braid, as long as see through by imbibition, its yarn can be just any kind.

With regard to the fiber yarn of this conductor braid and outside braid, such as adopting aptly the polyester such as cotton, fluororesin (PFA), polypropylene (PP), polyphenylene sulfide (PPS), tygon (PE), polyethylene terephthalate (PET), polyvinyl alcohol (PVA) (PVA), the organic or inorganic compounds such as nylon (NY).In addition, non-hygroscopic starting material or hydroscopicity starting material all can, but after leakage is detected, can be cleaned, dry and promptly recover aspect while being paid attention to, preferably use the non-hygroscopic starting material.And then monofilament or multifilament all can adopt.Now, if starting material that will be high as hydrophobicity fluororesin and as cotton so bibulous starting material interweaved and formed braid, the ratio interweaved by changing it, also can adjust the easness that leakage is immersed to this braid.

With regard to regard to conductor braid painted, fiber yarn can be dipped in to painted groove and carry out painted after, this painted silk is made to braid, or its braid is dipped in to painted groove and carries out painted.Now, its painted preferred non-dissolubility.If non-dissolubility, even contact with leakage, can, to outside braid stripping, as long as dry outside braid will return to original state, therefore can not detect again yet.

With regard to the material of above-mentioned conductor, so long as the material in the past used, it can be just any material, for example, can be the twisting thread of zinc-plated grade, single line, lenticular wire, its material also is not limited to metal, as long as there is electric conductivity, can be just nonmetal, carbon fiber, if but pay attention to bendability, preferably twist thread.The arrangement pitch of each conductor (thickness of inner braid etc.) can be considered to detect precision and wait and suitably determine by experiment.

With regard to the radical of this conductor, as long as be more than 2, if but 3, can be by its 1 detection line (referring to Patent Document 2 the 7th pages of " embodiment 3 ", Fig. 4, Fig. 5 that the 6th row is later) as the leakage position, perhaps, when each conductor arrangement is become to flat leakage detection line, can enlarge leakage sensing range (referring to Patent Document Fig. 1～Fig. 5 of 3).

When this conductor is 2, the color of covering section can be made as to any 2 kinds of colors in red, blue, yellow.Now, one side can be made as to yellow, the opposing party is made as to redness or blueness, when conductor is 3, the color of each covering section can be made as to yellow, redness or blue.This is that yellow can make red or blue eye-catching (with reference to the aftermentioned embodiment) because red or blue being easy to identified.

In addition, if respectively cover conductor by twisted, the color that respectively covers conductor is identified with spiral fashion on the length direction of leakage detection line, can more easily identify the situation (with reference to the aftermentioned embodiment) that this leakage occurs.

As mentioned above, in the present invention, the covering section of each conductor has been implemented different painted separately, therefore, when leakage occurs, can easily identify the covering conductor that causes seeing through outside braid because of leakage.Thus, can easily confirm the leakage position.

The accompanying drawing explanation

The sectional view that Fig. 1 is an embodiment of the invention.

The partial perspective view that Fig. 2 is above-mentioned embodiment.

The sectional view that Fig. 3 is other embodiment.

The action diagram that Fig. 4 is embodiment 1 ~ 4 and comparative example, (a) for before leakage, (b) for after leakage.

Fig. 5 is above-mentioned action diagram, (a) for before leakage, (b) for after leakage.

Fig. 6 is above-mentioned action diagram, (a) for before leakage, (b) for after leakage.

The sectional view that Fig. 7 is past case.

Symbol description

P, P ' leakage detection line

1,11 conductors

2,12 covering sections (braid)

10 cover conductor

4,14 outside braids

Embodiment

Fig. 1 ~ Fig. 3 means embodiments of the present invention, and the leakage detection line P of this embodiment is following formation, that is (gauge or diameter of wire: 0.18mm * 13 piece=0.33mm, will be twisted thread by zinc-plated soft copper ²) 2 (Fig. 3) or 3 (Fig. 1,2) conductors 11 of forming, the braid 12 that utilizes respectively cotton is covered and is guaranteed the insulativity of 11 of each conductors, this covers conductor 10 twisted, and its periphery is covered to (external diameter: about 4mm) with the outside braid 14 of the continuous line of multifilament shape white of external diameter 0.1mm.

The covering section (braid) 12 consisted of cotton of each conductor 11 sneaks into each pigment of red, blue, yellow and carry out the color development of red, blue, yellow to cotton respectively.Utilize the covering conductor 10 of this color development that is red, blue, yellow, made embodiment 1 ~ 4 and the comparative example shown in Fig. 4 ~ Fig. 6.

This embodiment 1 ~ 3rd, cover by 2 shown in Fig. 3 the leakage detection line P that

conductor

10,10 twisteds form, in embodiment 1, its covering 12 that covers

conductor

10,10 consists of red and blue, formed by above-mentioned red and Huang in embodiment 2, formed by above-mentioned indigo plant and Huang in embodiment 3.Embodiment 4 covers by 3 shown in Fig. 1, Fig. 2 the leakage detection line P that

conductor

10,10 twisteds form, and its covering section 12 that covers

conductor

10,10,10 consists of red, indigo plant and Huang.Comparative example is to cover by 2 shown in Fig. 3 the leakage detection line P that

conductor

10,10 twisteds form, and its covering section 12 that covers

conductor

10,10 consists of red and red.

State before the water-wet of each leakage detection line P of this each embodiment 1 ~ 4 and comparative example is shown in each (a) of Fig. 4 ~ Fig. 6, state after its water-wet is shown in each (b) of same figure, Fig. 4 means the state under the illumination of color of sunshine room fluorescent lights, Fig. 5 means the state under the incandescent lamp bulb look electric torch in darkroom, and Fig. 6 means the state under the White LED illumination in darkroom.

In this each test, if each figure (a) and with figure (b) relatively in each figure (b), covers 12 and is the comparative example that consists of red and red same color leakage detection line P integral body is appeared in one's mind with taking on a red color, but be difficult to judge leakage has occurred wherein.

On the other hand, that the leakage detection line P of embodiment 1 ~ 4 appears in one's mind respectively in each figure (b) is red and blue, red and yellow, Lan Hehuang or spiral fashion form red, Lan Hehuang, presents and above-mentioned each figure (a) visibly different lines, can confirm its leakage position.This confirmation also can be carried out in the darkroom of Fig. 5, Fig. 6.Now, it distinguishes that degree becomes distinct according to the order of embodiment 1, embodiment 2, embodiment 3, embodiment 4.

Can understand thus the radical that covers conductor 10 and compare with 2, preferably, more than 3, in addition, can understand in the time of 2, according to the degree of the distinguishing increase of the order leakage section of red and blue, red and yellow, Lan Hehuang.Can understand thus yellow and make red and blue giving prominence to, increase the degree of distinguishing of its leakage section.In addition, the difference of degree is distinguished by its leakage section, and dark place more becomes remarkable.

Although above-mentioned embodiment utilizes braid to form covering section 12, the resin that also can make semiconduction resin etc. covers (covering conductor).In addition, covering section 12 painted be also except red, blue, yellow, it is also conceivable that green, black etc., and then, can sneak into glass dust and see through while making it wetting and shinny to coloring pigment, or mix the fluorescence material.In addition, conductor 11 also can be for not twisting thread, and make single line, as the line of acid resistance (chemical-resistant), also can adopt carbon fiber product.

Should illustrate, should think that this disclosed embodiment is illustration in all respects, and and nonrestrictive mode.Scope of the present invention is not above-mentioned embodiment, but is asked for protection Range Representation and comprised the implication that is equal to the patent scope of asking for protection and all changes in this scope by patent.

Claims

1. a leakage detection line (P), it is characterized in that, at least two conductors (11) form respectively covering section (12) and arrange, the outside braid (14) seen through when the periphery of this covering conductor (10) is utilized to imbibition in length range is covered, imbibition by this outside braid changes the resistance value between each conductor (11)

Wherein, the covering section (12) of described each conductor (11) has been implemented different painted separately.

2. leakage detection line according to claim 1, is characterized in that, described covering conductor (10) is two, and its each covering section (12) is colored as any 2 kinds of colors in yellow, redness and blueness.

3. leakage detection line according to claim 1, is characterized in that, described covering conductor (10) is two, and a side of its each covering section (12) is colored as yellow, and the opposing party is red or blue.

4. leakage detection line according to claim 1, is characterized in that, described covering conductor (10) is three, and its each covering section (12) respectively is colored as yellow, redness or blue.

5. according to the described leakage detection line of any one in claim 1 ~ 4, it is characterized in that, described covering section (12) consists of braid.