CN1692455A - High pressure resistance body element - Google Patents
High pressure resistance body element Download PDFInfo
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- CN1692455A CN1692455A CN 200380100625 CN200380100625A CN1692455A CN 1692455 A CN1692455 A CN 1692455A CN 200380100625 CN200380100625 CN 200380100625 CN 200380100625 A CN200380100625 A CN 200380100625A CN 1692455 A CN1692455 A CN 1692455A
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- high pressure
- body element
- pressure resistance
- resistance body
- insulating sleeve
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Abstract
A high pressure resistance body element superior in heat resistance, anti-dielectric breakdown property, anti-shock property, and durability, and most convenient for maintenance, inspection, servicing, and replacement repair. It is composed of a cylindrical outer sleeve of metal, a coil-like resistance heating wire stretched between the inner ends of electrode bars respectively inserted in the outer sleeve from the opposite ends thereof, an insulator filled between the resistance heating wire and electrode bars and the inner wall surface of the outer sleeve, and baked, and insulation sleeves removably fitted to the regions close to the opposite ends of the outer sleeve bridgewise supported at the opposite ends thereof by disposition plates to extend through the latter.
Description
Technical field
The present invention relates to the high pressure resistance body element of high-pressure metal resistor that a kind of conduct is used for the load characteristic test of high-voltage power device.
Background technology
In the past, as the loading resistor of the load characteristic test that is used for Blast Furnace Top Gas Recovery Turbine Unit (TRT), use as shown in Figure 3 the high pressure resistance body element with knocking-over sinker 91 '.Describe with reference to this figure, 2 ' be columnar urceolus, it has the length of about 1m.
And 3 is the resistance heating line, and 4 is electrode bar, 5 ' insulant for being filled between resistance heating line 3 and electrode bar 4 and the urceolus 2 ' inwall and being sealed by end-blocking parts 6.This insulant 5 ' form is Powdered, have insulation urceolus 2 ' with the effect of resistance heating line 3 and electrode bar 4.
The 7th, terminal for connecting is mounted and fixed on both sides by screwing togather slotting nut 8,8 clampings of leading at the threaded portion, outer end of electrode bar 4 4a.And, by this terminal for connecting 7 and adjacent another high pressure resistance body element 1 ' be connected.The 9th, knocking-over sinker as described above has the function of the heating panel of emitting the heat that produces when 3 energisings of resistance heating line.Knocking-over sinker 9 urceolus 2 ' periphery integrally formed or be mounted to helical form with the interval of about 7mm on vertically.
This high pressure resistance body element 1 ' owing to working voltage, so set rated voltage 400V, insulation endurance 2000V/1 minute corresponding to 6600V.
Fig. 4 represent to be connected in series above-mentioned high pressure resistance body element 1 ' high-tension resistive circuit 10.11 is link, replace terminal for connecting 7 connect adjacent high pressure resistance body element 1 '.12 is tetragonal square box, on the assortment plate 12a ' of this square box 12, connect stride establish two ends and install ten high pressure resistance body elements 1 ', form high-tension resistive circuit 10.
Fig. 5 schematically illustrates the structure of high-voltage load resistor unit 13.Multilayer extends across frame and contains 15 layers of above-mentioned high-tension resistive circuit 10 on this high-voltage load resistor unit 13.At this moment, high pressure resistance body element 1 ' knocking-over sinker 9 overlap differently inconsistent mutually configuration.This be because if each high pressure resistance body element 1 ' become "on" position, then produce quite high heat, so must be by cooling fan from descending to carry out fifty-fifty air cooling.
Fig. 6 represents cooling fan 14 is arranged on embodiment on this high-voltage load resistor unit 13.In the figure, 15 is vibration-proof rubber, 16 expression insulators.This insulator 16 has the effect of further guaranteeing insulating properties.17 is guard shield among the figure, and 18 for being provided with pedestal.
Exemplify reference as prior art at this.
Te Kaiping 9-15307 communique
Te Kaiping 9-15308 communique
The spy opens the 2000-19231 communique
Use above-mentioned existing dry-type high-voltage load resistor unit 13 to carry out the result of the load characteristic test of high-voltage power device, high-voltage load resistor unit 13 integral body of air cooling are 140 ℃ high temperature as can be known, and high pressure resistance body element 1 ' monomer has 350 ℃～700 ℃ temperature.
This be because, even the high pressure resistance body element 1 of assortment on high-tension resistive circuit 10 ' knocking-over sinker 9 be not configured in different position mutually with not overlapping, the shape of this knocking-over sinker 9 also becomes the obstruction of the ventilation that cooling fan 14 produces, and heat is gathered and can not fully be obtained the cooling effect of cooling fan 14 in square box 12.As general knowledge this high tension voltage element 1 ' in the standing knocking-over sinker that has 9 very effective in the low voltage voltage element, but may cause following variety of issue.
Promptly, because knocking-over sinker 9 becomes the obstruction of ventilation, so in this high-voltage load resistor unit 13, produce random air-flow and disturbing flow, the result can not avoid causing the phenomenon of vibration, in the prior embodiment, avoid the problems referred to above by vibration-proof rubber 15, but the danger in when test can not be removed still.
And, because enclose high pressure resistance body element 1 ' the insulant 5 ' be Powdered of urceolus 2 ' interior, so not only exist because this external force vibration, moving sheet near and can not be by thicker covering equably, minor insulation is insufficient, becomes the problem of the cause of insulation breakdown, also have because insulating powder, so the scorching hot resistance heating line 3 in the work also is easy to generate vibration, break the problem of poor heat resistance easily.Moreover, now, most of failure causes processed by operation person's mistake behaviour are not fully aware of.
And, by all the year round result of the test as can be known, the shape of this knocking-over sinker 9 is used for thermolysis, but because its front end is sharp, so produce corona discharge in the early stage from front tip 9a, 9a... (with reference to Fig. 3) when becoming high pressure, finally between square box 12, produce arc discharge, cause insulation breakdown.Existing high pressure resistance body element 1 ' can have and implement load characteristic test dangerously.
When causing insulation breakdown by arc discharge, be provided with insulator 16 as safety method, but because there is not the escape place of high pressure overcurrent, so have the danger that high-voltage load resistor unit 13 whole scaling loss are destroyed, operating personnel at work can not be close owing to danger.
More than, because knocking-over sinker 9, so be difficult to perspective from square box 12 tops inner, become the obstacle in maintenance, maintenance, the maintenance, and, can not be only with the high pressure resistance body element 1 of scaling loss or broken string ' laterally take out from square box 12, so can not exchange in the working site part, must take back factory seriatim, have no idea the high pressure resistance body element 1 of pulling down other ' the basis on carry out part exchange again, must make load characteristic test interrupt, delay.
At this, main purpose of the present invention is as follows.
That is, first purpose of the present invention is to provide a kind of high pressure resistance body element that can bear the ascending temperature that the heat that produces causes when carrying out the load-characteristic test of high-voltage power device.
The present invention's second purpose is to provide a kind of under high pressure also can prevent insulation breakdown, is used for the high pressure resistance body element of high-voltage load device.
It is a kind of to the resistance to vibration of cold wind high pressure resistance body element good, that have durability that the present invention's the 3rd purpose is to provide.
The present invention's the 4th purpose is to provide a kind of high pressure resistance body element of taking out one by one, keep in repair, overhaul, maintain, exchange, study for a second time courses one has flunked from support be convenient to.
The high pressure resistance body element that provides a kind of light weight small-sized is provided the present invention's the 5th purpose.
Other purposes of the present invention just can be understood from the description of specification, accompanying drawing, particularly technical scheme.
Summary of the invention
The present invention is for addressing the above problem, a kind of constructional device is provided, by utilizing insulating sleeve to cover freely by the position of the support of the urceolus of high pressure resistance body element supporting with extracting, helical form heat radiation knocking-over sinker is not set on the Zhou Quanchang outside can fully strengthens the high temperature insulation destructiveness yet, and form the ventilation state of the wind that produces by cooling fan well, in addition, form vibration-proof structure.
In addition, the concrete detailed description in detail, the present invention realizes above-mentioned purpose by adopting the following new feature structure device that exemplifies, and addresses the above problem.
That is, first aspect present invention provides a kind of high pressure resistance body element, and it comprises: the columnar urceolus of metallic; The resistance heating line is wound on to its mutual spirality respectively from the inner of the electrode bar of the two ends interpolation of above-mentioned urceolus each other; Insulant, its sintering are filled between above-mentioned electrode bar and above-mentioned resistance heating line and the above-mentioned outer tube inner wall face; Insulating sleeve, it is extracted intercalation freely and is fixed near the position two ends of the above-mentioned urceolus that is supported by various supports.
Second aspect present invention, in the high pressure resistance body element of first aspect, insulating sleeve is fixed on the above-mentioned urceolus by spring trough of belt back-up ring.
Third aspect present invention, first or the high pressure resistance body element of second aspect in, insulating sleeve is extracted to pass through freely to be embedded on the assortment plate and by spring trough of belt back-up ring and is fixed, above-mentioned assortment plate is the support when above-mentioned high pressure resistance body element multiple row multilayer is joined frame.
Fourth aspect present invention, first or the high pressure resistance body element of second aspect in, insulating sleeve is a cylindrical shape.
Fifth aspect present invention, first or the high pressure resistance body element of second aspect in, insulating sleeve is to have corresponding to the insulation endurance of the high-voltage value that applies to form length and thickness freely with adjusting.
Sixth aspect present invention, in the high pressure resistance body element aspect the 5th, the about 10cm of length between the above-mentioned insulating sleeve front and back.
Seventh aspect present invention, in the high pressure resistance body element aspect the 5th, the about 3mm of thickness between the above-mentioned insulating sleeve front and back.
Eighth aspect present invention, first or the high pressure resistance body element of second aspect in, above-mentioned insulating sleeve is made of sintered ceramic.
Ninth aspect present invention, first or the high pressure resistance body element of second aspect in, above-mentioned urceolus adopts the used outer dress sheath of the good low pressure of heat-resistant quality, it does not have the helical form knocking-over sinker that the full guard as above-mentioned insulant covers.
Tenth aspect present invention, first or the high pressure resistance body element of second aspect in, above-mentioned insulant sintering is filled and is solidified and the above-mentioned resistance heating line of the anti-protection landfill that shakes.
The present invention the tenth on the one hand, first or the high pressure resistance body element of second aspect in, above-mentioned electrode bar is the conductive metal rod.
The present invention uses above-mentioned high pressure resistance body element to test on existing high-voltage load resistor, because insulating sleeve has cylindrical shape, so by the well-ventilated that cooling fan produces, in square box, do not produce sinuous flow, disturb stream, compare with conventional example and can obtain sufficient radiating effect.
Drum does not form the obstruction of wind, wind not only can flow to the topmost of resistor unit swimmingly, also because there is not spiral helicine knocking-over sinker, so easily in last perspective square box, if pull down spring trough of belt back-up ring, then easily each high pressure resistance body element is extracted outside the square box, so very conveniently keep in repair in the working site, overhaul, maintain and study for a second time courses one has flunked.
In addition, also can suppress generation of vibration thus, not need to be provided with vibration-proof rubber, the danger when reducing to test to heavens.In addition, because do not have the such overshooting shape front tip shape of the knocking-over sinker of conventional example, so can increase insulation endurance, avoid the danger of insulation breakdown, by insulating sleeve the high pressure resistance body element supporting is installed in simultaneously and plays the effect that can stop further insulation breakdown on the support by outer dress.
Description of drawings
Fig. 1 is that side view is cut in the part omission of the high pressure resistance body element of pulling down insulating sleeve of the embodiment of the invention open;
Fig. 2 is that the high pressure resistance body element of the expression embodiment of the invention is cut side view open to the omission of the part of assortment plate installment state;
Fig. 3 is that side view is cut in the part omission of the existing high pressure resistance body element of expression open;
Fig. 4 is partly cut-away's plane graph that expression will connect the high-tension resistive circuit that is connected in series across the existing high pressure resistance body element group on square box;
Fig. 5 is the stereogram of the existing high-voltage load resistor unit of expression;
Fig. 6 is the side view that expression is installed in cooling fan by insulator and vibration-proof rubber the state of existing high-voltage load resistor unit downside.
Embodiment
With reference to the description of drawings embodiment of the invention.
Fig. 1 is that side view is cut in the part omission of the high pressure resistance body element of pulling down insulating sleeve of expression present embodiment open.Fig. 2 is illustrated in the assortment plate to connect the part stride the installment state of establishing two ends and omit and cut side view open.
In addition, in the present embodiment, same parts are given same reference numerals, do not have the same reference numerals of the apostrophe (') in the upper right corner to represent the corresponding component of conventional example.
Among the figure; the high pressure resistance body element of Reference numeral 1 expression present embodiment; the metal urceolus of Reference numeral 2 expressions; by making smooth surface form the shape that is difficult for discharge; also can satisfy the good requirement of heat dissipation characteristics even without spiral helicine knocking-over sinker; and, use the used outer dress sheath of low pressure as the full guard cladding material of insulant 5.Reference numeral 3 is mutually to stretch the resistance heating line that is arranged on respectively from the inner coiled type each other of the electrode bar 4,4 of the two ends interpolation of urceolus 2.
In addition, Reference numeral 5 is and 5 of conventional example ' identical insulant, and the sintering curing by the insulant of heating powder shape is filled between the electrode bar 4,4 and resistance heating line 3 of the inwall of urceolus 2 and conductive metal.Thus, insulant 5 has played equably the effect of urceolus 2 with electrode bar 4,4 and 3 insulation of resistance heating line, absorbs the resistance heating line 3 that vibrational energy from the outside firmly fixes self confining force difference simultaneously.
In addition, because carry out different solid shapeizations with existing thing, so even external force vibration, insulant 5 is non-migration also, can insulate reliably.Reference numeral 7 is to insert the outer terminal screw 4a of portion of electrify electrode rod 4 and by the terminal for connecting of nut 8,8 fixed clamp both sides.
Reference numeral 19 is the insulating sleeves as the feature of present embodiment.Insulating sleeve 19 uses the sintered ceramic of electric resistance to pressure, thermal endurance, resistance to water (producing the cold destruction that causes of rainwater constant speed when outdoor the test), anti-load and excellent impact resistance.Use to exchange 12000V/mm1 minute material of proof voltage as electrical characteristic, can make the parts that have near 36000V/1 minute insulation endurance when for example thickness is for 3mm.
In addition, insulating sleeve 19 be shaped as cylindrical shape, when for example the external diameter of high pressure resistance body element 1 was 12mm, internal diameter was about 12.5mm; When thickness was 3mm, external diameter was about 18.5mm.Form length and thickness freely according to the working voltage adjustment.
In addition, as shown in Figure 2, consider that surface contamination and moisture cause that insulation values reduces, the length with the perforation both sides of assortment plate 12a, support cut 12b is made as about 50mm respectively.
In addition, these numerical value are an example, the invention is not restricted to this.Reference numeral 20 expression spring trough of belt back-up rings among this figure, the insulating sleeve 19 that can extract freely is fixed on the support cut 12b of assortment plate 12a, and the urceolus 2 that can extract freely is fixed on the insulating sleeve 19.
Therefore, across square box 12 self miniaturization of 1 group of the high pressure resistance body element of accommodating the light weight miniaturization.
Abovely describe according to embodiments of the invention, the present invention is not confined to said method, is realizing the object of the invention and is having in the scope of above-mentioned effect and can suitably change.
Claims (11)
1. high pressure resistance body element, it comprises:
The columnar urceolus of metallic;
The resistance heating line is wound on to its mutual spirality respectively from the inner of the electrode bar of the two ends interpolation of described urceolus each other;
Insulant, its sintering are filled between described electrode bar and described resistance heating line and the described outer tube inner wall face;
Insulating sleeve, it extracts near the position, two ends that intercalation freely is fixed on the described urceolus that utilizes various support supportings.
2. high pressure resistance body element as claimed in claim 1 is characterized in that, described insulating sleeve is fixed on the described urceolus by spring trough of belt back-up ring.
3. high pressure resistance body element as claimed in claim 1 or 2 is characterized in that, described insulating sleeve is extracted to pass through freely to be embedded on the assortment plate and by spring trough of belt back-up ring and fixed, and described assortment plate is the support when described high pressure resistance body element multiple row multilayer is joined frame.
4. high pressure resistance body element as claimed in claim 1 or 2 is characterized in that, described insulating sleeve is a cylindrical shape.
5. high pressure resistance body element as claimed in claim 1 or 2, it is to have corresponding to the insulation endurance of the high-voltage value that applies to form length and thickness freely that its spy is loaded in, described insulating sleeve with adjusting.
6. high pressure resistance body element as claimed in claim 5 is characterized in that, the about 10cm of length between the described insulating sleeve front and back.
7. high pressure resistance body element as claimed in claim 5 is characterized in that, the about 3mm of thickness between the described insulating sleeve front and back.
8. high pressure resistance body element as claimed in claim 1 or 2 is characterized in that described insulating sleeve is made of sintered ceramic.
9. high pressure resistance body element as claimed in claim 1 or 2 is characterized in that, described urceolus adopts the used outer dress sheath of the good low pressure of heat-resistant quality, and it does not have the helical form knocking-over sinker as the full guard covering of described insulant.
10. high pressure resistance body element as claimed in claim 1 or 2 is characterized in that, described insulant sintering is filled the described resistance heating line that solidifies the also anti-covering landfill that shakes.
11. high pressure resistance body element as claimed in claim 1 or 2 is characterized in that, described electrode bar is the conductive metal rod.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003158195A JP3653520B2 (en) | 2003-06-03 | 2003-06-03 | Dry high voltage resistance device and method for preventing chain disconnection of the device |
| JP158195/2003 | 2003-06-03 | ||
| JP367958/2003 | 2003-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1692455A true CN1692455A (en) | 2005-11-02 |
| CN100578692C CN100578692C (en) | 2010-01-06 |
Family
ID=34051689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200380100625A Expired - Fee Related CN100578692C (en) | 2003-06-03 | 2003-12-18 | High pressure resistance element |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3653520B2 (en) |
| CN (1) | CN100578692C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845291A (en) * | 2016-05-27 | 2016-08-10 | 湖南福德电气有限公司 | Temperature-resistant and insulation-protection rubber sleeve |
| CN112740054A (en) * | 2018-09-18 | 2021-04-30 | 株式会社辰巳菱机 | Load resistor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5889216B2 (en) * | 2013-01-18 | 2016-03-22 | 赤司電機株式会社 | High voltage generator load test equipment |
| JP6144060B2 (en) * | 2013-02-01 | 2017-06-07 | 本田技研工業株式会社 | Fuel cell current density distribution measuring device |
| US10673225B2 (en) * | 2015-09-24 | 2020-06-02 | Brainwave Research Corporation | Electrical receptacle fault protection |
| US11639971B2 (en) * | 2019-03-25 | 2023-05-02 | Tatsumi Ryoki Co., Ltd | Load testing device and insulating frame for load testing device |
-
2003
- 2003-06-03 JP JP2003158195A patent/JP3653520B2/en not_active Expired - Lifetime
- 2003-12-18 CN CN200380100625A patent/CN100578692C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845291A (en) * | 2016-05-27 | 2016-08-10 | 湖南福德电气有限公司 | Temperature-resistant and insulation-protection rubber sleeve |
| CN112740054A (en) * | 2018-09-18 | 2021-04-30 | 株式会社辰巳菱机 | Load resistor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004363246A (en) | 2004-12-24 |
| CN100578692C (en) | 2010-01-06 |
| JP3653520B2 (en) | 2005-05-25 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100106 Termination date: 20201218 |