CN106092852B - Seepage of water experimental rig at power cable connector - Google Patents
Seepage of water experimental rig at power cable connector Download PDFInfo
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- CN106092852B CN106092852B CN201610399406.0A CN201610399406A CN106092852B CN 106092852 B CN106092852 B CN 106092852B CN 201610399406 A CN201610399406 A CN 201610399406A CN 106092852 B CN106092852 B CN 106092852B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000007789 sealing Methods 0.000 claims abstract description 71
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 7
- 238000005304 joining Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000013307 optical fiber Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Installation Of Indoor Wiring (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Examining Or Testing Airtightness (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Seepage of water experimental rig at power cable connector,For electric system field of cable technology,Including outter box,The assembly end cap that outter box port is sealed,End cover A and sealing ring A,Air boost pump,Insulating megger and control panel end,Cable, which is connected with transition joint and makees antiseepage water process, is placed on outter box,Water to water is filled into outter box be full of water injection pipe from water injection pipe,Then the free end of water injection pipe is connect with air boost pump,Insulating megger is placed in the both ends outside outter box for connection cables,Air boost pump,Pressure sensor connects control panel end,It can realize the purpose for preventing the application performance of means from carrying out experimental test different leakage,To continue to optimize,Promote the development of waterproof means at cable intermediate joint,Suitable environment for different preventing sailor's section provides guidance,Deposit into the adaptation to local conditions of cable laying,Technical parameter guidance is provided for making rational planning for for laying,Reducing joint leads to the probability of cable line fault.
Description
Technical field
The present invention relates to electric system field of cable technology, and in particular to is seepage of water experiment dress at power cable connector
It sets.
Background technology
By long-term use, water or tide vapour can enter cable interior to cable, can increase the decaying of fiber transmission performance, again
The micro-crack constantly extension of optical fiber surface can be made until fibercuts.Meanwhile corrosion and and metal material are caused to metal reinforcement
Material, which reacts, causes the hydrogen loss of optical fiber, to seriously affect the performance and service life of optical cable.
Main transmission section is conductor lines in cable, after conductor lines water leaking-in, can make conductor lines accelerated oxidation, cause
The shortening of cable life.After infiltering water in cable, the insulation performance of cable can be influenced, therefore most communication cable needs
Material water-proof material is placed in cable core.Element of the optical cable as signal transmission, major part are optical fiber, and optical fiber is by high-purity
Silica, when have water into the micro-crack on fashionable, tiny optical fiber can since water with reacting for silica causes hydrogen loss,
The fracture that optical fiber can be caused when serious, influences optic communication, so outdoor optical cable for communication almost all requires total cross-section to block water.State
Family's standard defines the infiltration test method of various cables, as core net is outdoor with the communication of optical cable YD/T901-2009 layer-twisted types
, it is specified that optical cable needs total cross-section to block water in optical cable, it is desirable that be 3 meters of long optical cables of interception, one end adds the water that 1 meter high of water column is formed
Pressure, in 24 hours, the other end should not have water exudation；Under factory condition, due to large-scale mass production, it is difficult to accomplish to each
Root optical cable test within 24 hours, usually uses substitution method, and using slightly shorter optical cable, such as 1 meter, under same hydraulic pressure, 1 is small
When the interior other end it is impermeable, ensure that the permeability performance of optical cable meets 3 meters of requirements in 24 hours.
In view of a kind of parameter for having become cable quality standard to the detection of cable seepage of water at present, so under normal circumstances
The seepage of water of cable itself requires all reach basic demand in manufacture.In real process or in daily cable maintenance
In the process, often there is the connection between cable socket, need to use transition joint.So in real work cable fault production
It is raw mostly in the link position of cable, so needing to prevent fires to the jointing of cable, explosion-proof, infiltration processing.Currently,
In the connection construction of cable, after being connected with transition joint, diversification has been presented in the water-proofing treatment means taken, and for each
The specific water-impervious application performance of kind method also lacks dedicated testing inspection means.
Invention content
For the problem that current cable connection joint position, infiltration can lack testing inspection, and of the invention provides
Seepage of water experimental rig at a kind of power cable connector, realization prevent the application performance of means from carrying out experiment survey different leakage
The purpose of examination, to continue to optimize, promote the development of waterproof means at cable intermediate joint, reducing joint leads to cable run event
The probability of barrier.
The technical scheme adopted by the invention to solve the technical problem is that：
Seepage of water experimental rig at a kind of power cable connector, including made of being fastened by upper half outer box and lower half outer box it is outer
Box body is connected to the assembly end cap of outter box left and right ends mouthful and end cover A, the sealing ring A covered in assembly side is arranged,
Air boost pump, insulating megger and control panel end.
Upper half outer box, lower half outer box：
Corresponding type groove is set in the upper half outer box, lower half outer box, and axis is respectively set in type groove port both sides
To the flange of extension；In inside setting sawtooth pattern face one on the lower face of the flange of upper half outer box；Accordingly, in lower half outer box
Flange upper surface in inside setting sawtooth pattern face two.
Type face is engaged between sawtooth pattern face one and sawtooth pattern face two after the upper half outer box, lower half outer box fastening, and on
Half outer box and lower half outer box by the way that the bolt being arranged on flange connect；Water injection pipe and pressure are set on the roof of upper half outer box
Sensor, the pressure sensor connect air boost pump.
Assemble end cap：
The assembly side is covered with axial cylindrical chamber, one end setting flange being connect with outter box, flange outer end face
Inside set annular convex platform one, annular convex platform one is corresponded on outter box and sets groove body embedded with sealing ring；It, will be described in the other end
The cylindrical chamber of assembly end cap is set as threaded hole, and threaded hole axially extends to the middle part of assembly side lid cylindrical chamber, corresponds to threaded hole
Inner end positions, annular flange is set in cavity wall；Annular groove of the setting embedded with sealing ring on the outer end face of annular flange.
End cover A：
The end cover A also sets axial cylindrical chamber, and one end of end cover A cylindrical chambers is set as big opening end outwardly
First bellmouth.
The end cover A is threaded in the threaded hole of the assembly end cap.
Sealing ring A：
The outer end of the sealing ring A outer walls is set as the first taper surface, on inner wall setting embed cushion rubber, on inner face setting with
Assemble the annular convex platform two of the annular groove cooperation in the annular flange of end cap.
After installation, the annular flange of the opposite assembly end cap of internal face of the sealing ring A extends radially inwardly certain distance；
The first bellmouth of end cover A is engaged with the first taper surface of sealing ring A.
Cable is connected with transition joint and makees antiseepage water process and is placed in outter box, and both ends are from being arranged in outer box body or so
The end cover A at end, the axis hole of sealing ring A are pierced by；The inner cavity of outter box is completed after blocking with end cover A and sealing ring A
Water to water is filled into outter box from water injection pipe and be full of water injection pipe, then connect the free end of water injection pipe with air boost pump；
The insulating megger connecting cable is placed in the both ends outside outter box.
The air boost pump, pressure sensor connection control panel end；On control panel end be arranged timing module and
Alarm module.
Further, further include moisture transducer, the moisture transducer is connected to the both ends end that cable is placed in outside outter box
Portion is connect with control panel end.
Further, further include the end cover B and sealing ring B for being tubular；The end cover Type B intracavitary end is set as big
The second bellmouth of mouth end outwardly；The outer wall of the sealing ring B is set as the second taper surface and coordinates with second bellmouth, described
The inner wall of sealing ring B is set as big opening end third bellmouth outwardly and the minimum diameter of third bellmouth is made to be equal to the outer of cable
Diameter；It is to be threadedly coupled between the outer wall of the end cover B and the internal chamber wall of the end cover A.
The cable ends of connection from be arranged after the end cover A of outer box portion left right end, the axis hole of sealing ring A pass through again by
End cover B, sealing ring B axis hole be pierced by.
Further, the sawtooth pattern face one is made of in and face a2, face b2, face c2 outside, and accordingly, sawtooth pattern face two is certainly
It is interior and be made of outside face a1, face b1, face c1；In the joining place of the face a1 and face b1 in the sawtooth pattern face two, cylindrical groove is set,
Cylindrical seal item is set in cylindrical groove and the cylindrical groove at the upper end opposite face a1 and face b1 of cylindrical seal item is made to protrude outward one
Part, and cylindrical groove is arranged in joining place of the corresponding protrusion in the face a2 and face b2 in sawtooth pattern face one.Will be outside upper half
Sawtooth pattern face one is completely attached to sawtooth pattern face two after box is connect with lower half outer box and cylindrical seal item is included completely in face a1
In the slot formed with face b1, face a2 and face b2.
Further, the sawtooth pattern face one, sawtooth pattern face two are frosting.
The beneficial effects of the invention are as follows：
It can realize the purpose for preventing the application performance of means from carrying out experimental test different leakage, with constantly excellent
The development for changing, promoting waterproof means at cable intermediate joint, the suitable environment for different preventing sailor's section provide guidance, deposit into cable
The adaptation to local conditions of laying provides technical parameter guidance for making rational planning for for laying, and can reduce joint leads to cable run
The probability of failure.The increase of end cover B and sealing ring B are arranged, and improve the leakproofness of outter box, outer box intracoelomic cavity is enable to hold
By higher static hydraulic pressure, the reliability of experiment sealing pressurize link is further increased.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the partial enlargement structural representation that I goes out in Fig. 1；
Fig. 3 is the split type cross section structure schematic diagram of the outter box positions A-A shown in Fig. 1 in the present invention；
Fig. 4 is the axial cross section structural schematic diagram that end cap is assembled in the present invention；
Fig. 5 is the left view structural representation that end cap is assembled in the present invention；
Fig. 6 is the cross section structure schematic diagram of end cover A in the present invention；
Fig. 7 is the left view structural representation of end cover A in the present invention；
Fig. 8 is the cross section structure schematic diagram of sealing ring A in the present invention；
Fig. 9 is the left view structural representation of sealing ring A in the present invention；
The cross section structure schematic diagram of end cover B in Figure 10 present invention；
Figure 11 is the cross section structure schematic diagram of sealing ring B in the present invention；
In figure：1 outter box, 11 upper half outer box, 111 water injection pipes, 112 pressure sensors, 12 lower half outer box；10 flanges, 100
Cylindrical seal item, 101 sawtooth pattern faces one, 102 sawtooth pattern faces two, 103 bar-shaped troughs；2 assembly end caps, 21 threaded holes, 22 convex annulars
Edge, 230 sealing rings, 231 annular convex platform one；3 end cover A, 31 first bellmouths；4 sealing ring A, 41 first taper surfaces, in 42
Embedding cushion rubber, 43 annular convex platform two；5 end cover B, 51 second bellmouths；6 sealing ring B, 61 second taper surfaces, 62 third tapers
Hole；7 cables.
Specific implementation mode
Technology contents of the invention for ease of understanding, are below just described further its technical solution in conjunction with attached drawing.
Seepage of water experimental rig at a kind of power cable connector as shown in Figure 1, including by upper half outer box 11 and lower half outside
Outter box 1 made of box 12 fastens is connected to the assembly end cap 2 of 1 left and right ends of outter box mouthful and is arranged on assembly end cap 2
End cover A3, sealing ring A4, air boost pump, insulating megger and control panel end.
As shown in Figure 1, Figure 3, corresponding type groove is set in the upper half outer box 11, lower half outer box 12, and in type groove
Axially extending flange 10 is respectively set in transverse port both sides.Type groove is set as semicircle shape as shown in Figure 3 herein.In upper half outer box
It is axially extending in 10 outside setting of flange in 10 inside setting sawtooth pattern face 1 of flange on the lower face of 11 flange 10
Bar-shaped trough 103；Accordingly, on the upper surface of the flange 10 of lower half outer box 12, in 10 inside setting sawtooth pattern face two of flange
102, in 10 outside of flange, axially extending bar-shaped trough 103 is set.The setting of bar-shaped trough 103 in corresponding flange 10 is uniformly distributed in an axial direction
Row's vertical through hole, make assembly connection upper half outer box 11 and be used with lower half outer box 12.The upper half outer box 11, lower half outer box 12
After fastening, sawtooth pattern face 1 is engaged with sawtooth pattern face 2 102, is passed through by bolt after sealing strip is set in bar-shaped trough 103
Vertical through hole and upper half outer box 11 and lower half outer box 12 are fixed with one to form outter box 1.As shown in Figure 1, Figure 3, outter box 1
It is elliptical cylinder in cross section, lumenal cross-section is oval as shown in Figure 3.
To reinforce the connection sealing of upper half outer box 11 and 12 longitudinal edge of lower half outer box, in above-mentioned inside and outside two layers of sealing knot
On the basis of structure (sawtooth moulding surface structure and bar shaped slot structure), further by the sawtooth pattern face 1, sawtooth pattern face 2 101
Outer end face be set as frosting.Or as shown in figure 3, making the sawtooth pattern face 1 in and outside by face a2, face b2, face c2
It constitutes, accordingly, sawtooth pattern face 2 102 is in and is made of outside face a1, face b1, face c1, and in the sawtooth pattern face 2 102
Cylindrical groove is arranged in the joining place of face a1 and face b1, and cylindrical seal item 100 is set in cylindrical groove and makes the upper of cylindrical seal item 100
Cylindrical groove at end opposite face a1 and face b1 protrudes outward a part, and the corresponding protrusion is in the face in sawtooth pattern face 1
Cylindrical groove is arranged in the joining place of a2 and face b2.After upper half outer box 11 are connect with lower half outer box 12, sawtooth pattern face, 101 with
Sawtooth pattern face 2 102 completely attaches to and cylindrical seal item 100 is included the slot formed with face b2 in face a1 and face b1, face a2 completely
In.
As shown in Fig. 1-Fig. 2 and Fig. 4-Fig. 5, the assembly end cap 2 is equipped with axial cylindrical chamber, is connect with outter box 1
One end flange is set, set annular convex platform 1 on the inside of flange outer end face, corresponded on outter box 1 annular convex platform 1 set it is embedding
(groove body is separately positioned in upper half outer box 11 and lower half outer box 12 groove body equipped with sealing ring 230, semicircular in shape slot, upper half
Outer box 11 and lower half outer box 12 form circular trough and corresponding with annular convex platform 1 after docking).As shown in Fig. 2, Fig. 4, annular
The inner ring surface of boss 1 is the taper hole face of big opening end outwardly, to ensure to connect sealing effect.It is (shown in Fig. 2 in the other end
Left end), the cylindrical chamber of the assembly end cap 2 is set as threaded hole 21, and threaded hole 21 axially extends in assembly 2 cylindrical chamber of end cap
Portion corresponds to the inner end positions of threaded hole 21, and annular flange 22 is arranged in the cavity wall of assembly end cap 2.In annular flange 22
Annular groove of the setting embedded with sealing ring 230 on outer end face.The left and right for assembling annular flange on end cap 2 should be big by one to thickness
A bit, to ensure that the annular groove for being embedded with sealing ring 230 thereon can be provided with enough axial depths.
As shown in Fig. 1-Fig. 2 and Fig. 6-Fig. 7, the end cover A3 also sets axial cylindrical chamber, and end cover A3
One end of shape chamber is set as the first bellmouth 31 of big opening end outwardly.First bellmouth 31 axially prolongs along the cylindrical chamber of end cover A3
Ratio is stretched in 1/2 to 3/4 axial length interval range.The end cover A3 is threaded in the threaded hole of the assembly end cap 2
21。
As shown in Fig. 1-Fig. 2 and Fig. 8-Fig. 9, the outer ends of the sealing ring A4 outer walls is set as the first taper surface 41, on inner wall
Setting embeds cushion rubber 42, and the annular convex platform 2 43 with annular groove cooperation in the annular flange 22 of assembly end cap 2 is arranged on inner face.
After installation, the annular flange 22 of the opposite assembly end cap 2 of internal face of the sealing ring A4 extends radially inwardly centainly
Distance；The first bellmouth 31 of end cover A3 is engaged with the first taper surface 41 of sealing ring A4.
Cable 7 is connected with transition joint and makees antiseepage water process and is placed in the lower half outer box 12 of outter box 1, and both ends are from setting
The axis hole for setting the end cover A3, sealing ring A4 that hold in outter box 1 or so is pierced by；Then upper half outer box 11 and lower half outer box are fastened
On 12, counterface between the two is made to be tightly connected.Water injection pipe 111 and pressure are provided on the roof of upper half outer box 11
Sensor 112.
The inner cavity of outter box 1 is completed to block with end cover A3 and sealing ring A4, make outter box 1 except water injection pipe 111 it
Other outer mating surfaces seal.Water is filled into outter box 1 from water injection pipe 111, and to water, full of water injection pipe 111, (water injection pipe 111 has
Certain axial length), then the free end of water injection pipe 111 is connect with air boost pump.Make outer box by air boost pump
Hydraulic pressure in body 1 increases to setting range section, and keeps hydraulic pressure in this section.Specific hydraulic pressure value should be according to different electricity
Cable model and its environment used determine, but are at least greater than the hydraulic pressure value of 3 meter water columns formation.The hydraulic pressure value of setting, according to
The factors such as the difference of the axial length of two end cables, the difference of cable model test state in conjunction with the seepage of water of current normal cable
Family's standard is reference, is converted.The air boost pump, pressure sensor connection control panel end, pass through control panel end
Air boost pump is set, when the hydraulic pressure in outter box is less than setting value, signal is fed back to control by pressure sensor
Adjusting is made in panel end by control panel end to the working condition of air boost pump.Timing module is set on control panel end
And alarm module.According to test requirements document, the time of timing module setting experiment, generally at 14 to 30 days.Occur during experiment
When abnormal condition, alarm module alarm and feed back danger signal, cuts off the operation of air boost pump.
At least the beginning of experiment and at the end of, be placed in the both ends outside outter box with the insulating megger connecting cable, it is right
The insulation resistance of cable measures, and the data list of measurement is recorded.In this experiment, because influencing cable insulation
The extraneous factor of resistance also has the influence of temperature, electric field strength and electric property etc., so should ensure that when setting contrast test
The differentiating factor of itself and this experiment is only limited in this experiment be placed in the water of certain pressure at transition joint.In experiment
Between the stage, the insulation resistance of cable ends is taken multiple measurements preferably by insulating megger, and record data.It finally will record
Data carry out analysis comparison.When insulating resistance value (each self-groupings of record value at both ends) amplitude of variation is very big, then show to ooze
Aqueous encapsulation process is unqualified, needs to improve.In the multiple insulation measurement of intermediate progress, can learn specific anti-
The water-stop out-of-service time.
During realizing entire experiment, the real time monitoring for the failure state that seeps water to cable ends, in the design also
Include moisture transducer and is connect with control panel end.The moisture transducer is connected to two that cable 7 is placed in outside outter box
Hold end.Moisture transducer is connect with the alarm module at control panel end, and the cable moisture value detected is fed back to control
Panel end.After cable connector water leaking-in, arrived along cable transmission；Both ends and be detected after, alarm module is just alarmed, in this way can and
Shi Zhidao jointing water-impervious processing failures as a result, avoid failure after continue to make useless experiment, reduce test period
Waste, convenient for making adjustment in time.
In addition it should be noted that experiment in, make the hydraulic pressure value in outter box 1 in certain interval range, carry out from
Formula grouping (contrast test group is respectively set in every group) is dissipated, to help to obtain reliable experimental result, because only setting one
The excessive either too small of hydraulic pressure value setting is inevitably led to the rapid failure of reorganization experiment or misidentification by group hydraulic pressure value
It to be reliable, and cannot accurately learn under this water-impervious connection type, how is specific waterproof sealing effect.
In the structure shown in the present apparatus, the function of outter box 1 is to provide sealing cavity for the holding of hydraulic pressure, in outter box
Sealing element provided around 1 such as assembles end cap 2, end cover A3, sealing ring A4 enables its inner cavity to the closure of outter box 1
Unlikely notable leakage when bearing certain hydraulic pressure, to keep providing condition for the high pressure static of experiment.
As shown in Figure 1 and Figure 2, further include the end cover B5 and sealing ring B6 for being tubular.
As shown in Figure 1, Figure 2, shown in Figure 10, Figure 11, the end cover B5 cavities inner end is set as the second cone of big opening end outwardly
Shape hole 51；The outer wall of the sealing ring B6 is set as the second taper surface 61 and coordinates with second bellmouth 51, the sealing ring B6
Inner wall be set as big opening end third bellmouth 62 outwardly and the minimum diameter d of third bellmouth 62 made to be equal to the outer diameter of cable 7.
It is to be threadedly coupled between the outer wall of the end cover B5 and the internal chamber wall of the end cover A3.
The third bellmouth 62 of sealing ring B6 makes its minimum diameter d be equal to the outer diameter of cable and be placed towards inside, purpose
It is the contact area for reducing opposite cable under initial state, can be slided along the axial direction of cable under the action of end cover B5
It moves a distance and withstands on the outer end face of sealing ring A4, taper cannot be excessive, it is therefore an objective on the inner face top of sealing ring B6
After on the outer end face of sealing ring A4, can guarantee the extruding by the second bellmouth 51, after deformation third bellmouth 62 completely with
The outer surface of cable contacts, and achievees the purpose that sealing.After cable is pierced by by the axis hole of end cover A3, sealing ring A4, then by close
Sealing end covers B5, the axis hole of sealing ring B6 is pierced by.When assembly is completed to enter the experiment preparation stage, B6 points of sealing ring A4, sealing ring
It is not acted on by end cover A3, end cover B5, and its axis hole (bellmouth) and the outer wall of cable is made to be in close contact, realized
Axial dual-seal.
In above-mentioned improved structure, end cover A3 and sealing ring A4, end cover B5 and sealing ring B6 are from inside to outside
To the circumferential surface slit-shaped of cable 7 at it is dual it is close more, to enable the outter box after sealing 1 to bear internal pressure (the general feelings of bigger
Connection sealing effect under condition between the upper half outer box 11 and lower half outer box 12 of outter box 1 can be better than outter box 1 and cable circumferential surface
Between connection sealing effect, thus leakproofness it is weak left and right ends setting double sealing structure after, outer box can be improved
The internal pressure that body 1 is born).
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
Claims (7)
1. seepage of water experimental rig at a kind of power cable connector, it is characterised in that：
Including outter box made of being fastened by upper half outer box and lower half outer box, it is connected to the assembly end cap of outter box left and right ends mouthful
And end cover A, the sealing ring A covered in assembly side, air boost pump, insulating megger and control panel end are set；
Corresponding type groove is set in the upper half outer box, lower half outer box, and axial prolong is respectively set in type groove port both sides
The flange stretched；In inside setting sawtooth pattern face one on the lower face of the flange of upper half outer box；Accordingly, in the convex of lower half outer box
In inside setting sawtooth pattern face two on the upper surface of edge；Sawtooth pattern face one and sawtooth after the upper half outer box, lower half outer box fasten
Two, type face type face is engaged, and upper half outer box and lower half outer box by the way that the bolt being arranged on flange connect；Outside upper half
Water injection pipe and pressure sensor are set on the roof of box, and the pressure sensor connects air boost pump；
The assembly side is covered with axial cylindrical chamber, one end for being connect with outter box setting flange, flange outer end face it is interior
Side sets annular convex platform one, and annular convex platform one is corresponded on outter box and sets groove body embedded with sealing ring；In the other end, by the assembly
The cylindrical chamber of end cap is set as threaded hole, and threaded hole axially extends to the middle part of assembly side lid cylindrical chamber, corresponds to the interior of threaded hole
Annular flange is arranged in end position in cavity wall；Annular groove of the setting embedded with sealing ring on the outer end face of annular flange；
The end cover A also sets axial cylindrical chamber, and one end of end cover A cylindrical chambers is set as first of big opening end outwardly
Bellmouth；The end cover A is threaded in the threaded hole of the assembly end cap；
The outer end of the sealing ring A outer walls is set as the first taper surface, is arranged on inner wall and embeds cushion rubber, setting and assembly on inner face
The annular convex platform two that annular groove coordinates in the annular flange of end cap；After installation, the internal face of the sealing ring A is opposite to assemble end cap
Annular flange extend radially inwardly certain distance；The first bellmouth of end cover A is contacted with the first taper surface of sealing ring A
Cooperation；
Cable is connected with transition joint and makees antiseepage water process and is placed in outter box, and both ends are from being arranged in outer box portion left right end
End cover A, sealing ring A axis hole be pierced by；The inner cavity of outter box is completed after blocking by noting with end cover A and sealing ring A
Water pipe fills water to water into outter box and is full of water injection pipe, then connect the free end of water injection pipe with air boost pump；It is described
Insulating megger connecting cable is placed in the both ends outside outter box；
The air boost pump, pressure sensor connection control panel end；Timing module and alarm are set on control panel end
Module.
2. seepage of water experimental rig at power cable connector according to claim 1, it is characterised in that：Further include that moisture passes
Sensor, the moisture transducer are connected to the both ends end that cable is placed in outside outter box and are connect with control panel end.
3. seepage of water experimental rig at power cable connector according to claim 1 or 2, it is characterised in that：Further include equal
For the end cover B and sealing ring B of tubular；
The end cover Type B intracavitary end is set as the second bellmouth of big opening end outwardly；
The outer wall of the sealing ring B is set as the second taper surface and coordinates with second bellmouth, and the inner wall of the sealing ring B is set as
Big opening end third bellmouth outwardly and the minimum diameter of third bellmouth is made to be equal to the outer diameter of cable；
It is to be threadedly coupled between the outer wall of the end cover B and the internal chamber wall of end cover A.
4. seepage of water experimental rig at power cable connector according to claim 1 or 2, it is characterised in that：The sawtooth
Type face one is in and is made of outside face a2, face b2, face c2, and accordingly, sawtooth pattern face two is in and outside by face a1, face b1, face c1
It constitutes；Cylindrical groove is set in the joining place of the face a1 and face b1 in the sawtooth pattern face two, cylindrical seal item is set in cylindrical groove
And the cylindrical groove at the upper end opposite face a1 and face b1 of cylindrical seal item is made to protrude outward a part, and the corresponding protrusion exists
Cylindrical groove is arranged in the joining place of the face a2 and face b2 in sawtooth pattern face one.
5. seepage of water experimental rig at power cable connector according to claim 3, it is characterised in that：The sawtooth pattern face
One from interior and be made of outside face a2, face b2, face c2, and accordingly, sawtooth pattern face two is from interior and be made of outside face a1, face b1, face c1；
Cylindrical groove is set in the joining place of the face a1 and face b1 in the sawtooth pattern face two, cylindrical seal item is set in cylindrical groove and makes column
Cylindrical groove at the upper end opposite face a1 and face b1 of shape sealing strip protrudes outward a part, and the corresponding protrusion is in sawtooth pattern
Cylindrical groove is arranged in the joining place of the face a2 and face b2 in face one.
6. seepage of water experimental rig at power cable connector according to claim 1 or 2, it is characterised in that：The sawtooth
Type face one, sawtooth pattern face two are frosting.
7. seepage of water experimental rig at power cable connector according to claim 3, it is characterised in that：The sawtooth pattern face
One, sawtooth pattern face two is frosting.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399406.0A CN106092852B (en) | 2016-06-06 | 2016-06-06 | Seepage of water experimental rig at power cable connector |
| CN201810780624.8A CN108828368B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
| CN201810780670.8A CN108828370B (en) | 2016-06-06 | 2016-06-06 | Water seepage test device at power cable joints |
| CN201810780669.5A CN108828369B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399406.0A CN106092852B (en) | 2016-06-06 | 2016-06-06 | Seepage of water experimental rig at power cable connector |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780669.5A Division CN108828369B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
| CN201810780624.8A Division CN108828368B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
| CN201810780670.8A Division CN108828370B (en) | 2016-06-06 | 2016-06-06 | Water seepage test device at power cable joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106092852A CN106092852A (en) | 2016-11-09 |
| CN106092852B true CN106092852B (en) | 2018-10-09 |
Family
ID=57227966
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780670.8A Expired - Fee Related CN108828370B (en) | 2016-06-06 | 2016-06-06 | Water seepage test device at power cable joints |
| CN201810780669.5A Active CN108828369B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
| CN201610399406.0A Active CN106092852B (en) | 2016-06-06 | 2016-06-06 | Seepage of water experimental rig at power cable connector |
| CN201810780624.8A Active CN108828368B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780670.8A Expired - Fee Related CN108828370B (en) | 2016-06-06 | 2016-06-06 | Water seepage test device at power cable joints |
| CN201810780669.5A Active CN108828369B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780624.8A Active CN108828368B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
Country Status (1)
| Country | Link |
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| CN (4) | CN108828370B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181208A (en) * | 2017-12-20 | 2018-06-19 | 中国电力科学研究院有限公司 | A kind of device and method for being examined to cable connector water-resisting ability |
| CN109541320A (en) * | 2018-11-19 | 2019-03-29 | 国网北京市电力公司 | A method of measurement moisture influences cable loss factor |
| CN109557430A (en) * | 2018-11-19 | 2019-04-02 | 国网北京市电力公司 | A method of detection cable dielectric properties are filled the water by connector |
| CN110095589B (en) * | 2019-06-21 | 2023-05-23 | 福建师范大学地理研究所 | Overground and underground carbon flux synchronous measurement experimental equipment |
| CN110333173A (en) * | 2019-06-25 | 2019-10-15 | 宁波东方电缆股份有限公司 | A kind of sealing structure of sea cable apparatus for permeability test |
| CN112526296B (en) * | 2019-09-19 | 2024-12-10 | 北京金风科创风电设备有限公司 | Insulation testing device and method |
| CN111965446B (en) * | 2020-07-13 | 2021-05-25 | 华南理工大学 | An experimental method for evaluating the damp state of power cables in different water intakes |
| CN113932998B (en) * | 2021-11-03 | 2024-05-24 | 深圳供电局有限公司 | Device and method for testing sealing performance of cable intermediate connector |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108828370A (en) | 2018-11-16 |
| CN108828369B (en) | 2020-09-08 |
| CN106092852A (en) | 2016-11-09 |
| CN108828368A (en) | 2018-11-16 |
| CN108828369A (en) | 2018-11-16 |
| CN108828370B (en) | 2020-09-11 |
| CN108828368B (en) | 2020-10-02 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180712 Address after: 323000 Tianning Temple, Liandu District, Lishui, Zhejiang Applicant after: Lishui Xinyu Machinery Manufacturing Co., Ltd. Address before: No. 55, Huan Shan Road, Lishi District, Ji'nan, Shandong Province Applicant before: Ji'nan Xuan Tian Electromechanical Technology Co., Ltd. |
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Effective date of registration: 20180827 Address after: 318050 No. 1, 1 District, Shuang Miao village, Luoyang street, Luqiao District, Taizhou, Zhejiang. Applicant after: Yu Jiyan Address before: 323000 Tianning Temple, Liandu District, Lishui, Zhejiang Applicant before: Lishui Xinyu Machinery Manufacturing Co., Ltd. |
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Effective date of registration: 20190418 Address after: 318050 Changpu Road 388, Taizhou Bay Circular Economy Industrial Agglomeration Area, Luqiao District, Taizhou City, Zhejiang Province Patentee after: Kaikai Cable Technology Co., Ltd. Address before: 318050 No. 1, 1 District, Shuang Miao village, Luoyang street, Luqiao District, Taizhou, Zhejiang. Patentee before: Yu Jiyan |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Water permeability test device for power cable joint Effective date of registration: 20201122 Granted publication date: 20181009 Pledgee: Agricultural Bank of China Limited Taizhou Branch Pledgor: KAIKAI CABLE TECHNOLOGY Co.,Ltd. Registration number: Y2020330000996 |
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Date of cancellation: 20220208 Granted publication date: 20181009 Pledgee: Agricultural Bank of China Limited Taizhou Branch Pledgor: KAIKAI CABLE TECHNOLOGY Co.,Ltd. Registration number: Y2020330000996 |
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