CN108023321A - Cable core dehumidification equipment - Google Patents
Cable core dehumidification equipment Download PDFInfo
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- CN108023321A CN108023321A CN201711337122.XA CN201711337122A CN108023321A CN 108023321 A CN108023321 A CN 108023321A CN 201711337122 A CN201711337122 A CN 201711337122A CN 108023321 A CN108023321 A CN 108023321A
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 239000002274 desiccant Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 118
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000004087 circulation Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 240000005572 Syzygium cordatum Species 0.000 description 2
- 235000006650 Syzygium cordatum Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 208000013201 Stress fracture Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
Abstract
The present invention relates to a kind of cable core dehumidification equipment, including form gas handling system, the outlet system for forming outlet gas circuit of air inlet gas circuit；Gas handling system includes sequentially connected air inlet dry filtrating equipment, air-intake heating mechanism, air inlet open and close device；Gas handling system and the first end of the core of cable are mutually tightly connected；Outlet system includes vacuum air pump, and outlet system and the second end of the core of cable are mutually tightly connected.Cable core dehumidification equipment further includes gas converter.Connection is realized by gas converter between the first end of the gas outlet of air inlet open and close device and the n root cores of cable, between the second end of n root cores of cable and the air inlet of vacuum air pump.The present invention's quickly can dehumidify cable, and can reduce effect on moisture extraction is influenced by live air humidity, and without extra drying nitrogen, reduce dehumidifying cost.
Description
Technical field
The invention belongs to power generation industry, and in particular to the electricity used when a kind of cable site operation, repairing
Cable core dehumidification equipment.
Background technology
Pressure at present（20/10kV）Power cable and its annex carry out construction laying, repairing when work at the scene, especially
In the area of the long-term ponding of the earth's surfaces such as Jiangnan, south China, often due to cable fracture is poorly sealed, body is damaged, channel stagnant water,
The reasons such as air humidity is big, cause cable intake or core in steam humidity over limit.Once this kind of situation of generation, when cable is transported
After row, under the action of internal electric field and steam, cable insulation can produce electric field and climb electric " water tree ", and " water tree " can corrode insulation,
Insulation performance is reduced, cable breakdown is ultimately resulted in, seriously affects the service life and power supply reliability of cable.
Processing cable water inlet at present, if cable inlet segment is not grown, usually handstand cable flows out naturally by water, or directly
Inlet segment cable is amputated into two ways.Both processing methods " simple and crude ", tend not to the clean water inlet of thoroughly processing
Section, much water stain to remain in core fine crack, drainage effect is undesirable；And amputate inlet segment and also result in cable material
Waste, it is economical poor.
If core is not substantially intake, simply humidity is excessive, and engineering site can continue outwards to extract using vacuum air pump
The wet gas made moist in core, or gases at high pressure are filled with into core with inflator, taken away using gases at high pressure flowing
The internal steam of core.These two kinds of methods is the most wide cable dehumidifying method of current use scope.It is but merely empty by room temperature
Flow of air dehumidifies, time-consuming longer, and the final effect that dehumidifies is also related with live air humidity.If gas will be filled with to do instead
Dry pure nitrogen gas, can improve cable core dehumidification efficiency, but the cost that dehumidifies will be substantially increased.
The content of the invention
Steam in core can be fast and efficiently removed the object of the present invention is to provide one kind and reduces dehumidifying cost
Cable core dehumidification equipment.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of cable core dehumidification equipment, for carrying out removing wet construction to cable, the cable core dehumidification equipment includes being formed
The gas handling system of air inlet gas circuit, the outlet system for forming outlet gas circuit；
Air inlet dry filtrating equipment that the gas handling system includes being used to filtering and dry wherein gas, for heating wherein gas
Air-intake heating mechanism, the air inlet open and close device for controlling the air inlet gas path on-off；The air inlet dry filtrating equipment into
Gas port communicates with the external world and forms air intake, gas outlet and the air-intake heating mechanism of the air inlet dry filtrating equipment
Air inlet is connected, and the gas outlet of the air-intake heating mechanism is connected with the air inlet of the air inlet open and close device, the air inlet
The gas outlet of open and close device and the first end of the core of the cable are mutually tightly connected；
The outlet system includes the vacuum air pump for being evacuated, the line of the air inlet of the vacuum air pump and the cable
The second end of core is mutually tightly connected, and the gas outlet of the vacuum air pump forms air outlet slit.
Preferably, what the air inlet dry filtrating equipment included setting gradually is used to filter gas and remove wherein impurity
Dust separation layer, be provided with renewable active drying agent and be used for dry gas and remove wherein the drying layer of moisture, for temporary
The air accumulator of gas is deposited, the air inlet of the air inlet dry filtrating equipment is connected with the dust separation layer, and the air inlet is done
The gas outlet of dry filtration apparatus is connected with the air accumulator.
Preferably, the gas humidity detector of detection wherein gas humidity is provided with the air accumulator.
Preferably, the heating unit includes heating cabinet, several adding thermal resistances being arranged on the heating cabinet, is used for
Detect gas temperature in the heating cabinet and produce the temperature controller of temperature control signals, be connected with the temperature controller
And the thermostat relay for according to the temperature control signals controlling the adding thermal resistance whether to work.
Preferably, the air inlet open and close device includes folding relay, is arranged in the air inlet gas circuit and by the folding
The open and close device of relay control.
Preferably, the cable core dehumidification equipment further include be used for realization the gas outlet of the air inlet open and close device with it is described
The sealed connection of the first end of the core of cable and be used for realization the cable core second end and the vacuum air pump
Air inlet sealed connection pyrocondensation sealing connector.
Preferably, the cable core dehumidification equipment further includes gas converter, and the gas converter includes n+1 roads one
The gas conduit that is connected is held, between the gas outlet of the air inlet open and close device and the first end of the n root cores of the cable, described
Realized and connected by the gas converter between the second end of n root cores and the air inlet of the vacuum air pump of cable
Connect；The gas conversion being arranged between the first end of the gas outlet of the air inlet open and close device and the n root cores of the cable
The gas outlet with the air inlet open and close device, the first end of n root cores of the cable are connected Qi n+1 roads gas conduit respectively
Connect, the gas conversion being arranged between the second end of n root cores of the cable and the air inlet of the vacuum air pump
The second end of n root cores with the cable, the air inlet of the vacuum air pump are connected Qi n+1 roads gas conduit respectively
Connect；N is the positive integer more than 1.
Preferably, between the first end of the n root cores of the gas converter and the cable, the n root lines of the cable
Connector is sealed between the second end of core and the gas converter by pyrocondensation to be mutually tightly connected.
Preferably, described in every road of the gas converter operation valve is respectively arranged with gas conduit.
Preferably, the air inlet gas circuit, be respectively arranged with air humidity detector in the outlet gas circuit.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：The cable of the present invention
Core dehumidification equipment sets air inlet dry filtrating equipment and inlet air heating to select vacuum air pump to be evacuated in Chu Qi Duan, in inlet end
The equipment of device, quickly can dehumidify cable, and can reduce effect on moisture extraction is influenced by live air humidity, and need not
Extra drying nitrogen, reduces dehumidifying cost.
Brief description of the drawings
Attached drawing 1 is the principle schematic of the embodiment of the present invention one.
Attached drawing 2 is the schematic diagram of air inlet dry filtrating equipment in the present invention.
Attached drawing 3 is the schematic diagram of air-intake heating mechanism in the present invention.
Attached drawing 4 is the schematic diagram of air inlet open and close device in the present invention.
Attached drawing 5 is the schematic diagram of the embodiment of the present invention two.
Attached drawing 6 is the schematic diagram of gas converter in the embodiment of the present invention two.
In the figures above：1st, air inlet dry filtrating equipment；11st, dust separation layer；12nd, drying layer；13rd, air accumulator；14th, press
Power table；2nd, air-intake heating mechanism；21st, heating cabinet；22nd, adding thermal resistance；23rd, temperature controller；24th, thermostat relay；3rd, air inlet
Open and close device；31st, folding relay；32nd, open and close device；4th, pyrocondensation sealing connector；5th, air humidity detector；6th, temperature display
Device；7th, gas converter；71st, gas conduit；72nd, operation valve；8th, vacuum air pump；9th, air intake；10th, air outlet slit；11、
The core of cable.
Embodiment
The invention will be further described for shown embodiment below in conjunction with the accompanying drawings.
Embodiment one：As shown in Figure 1, it is a kind of to be used to the cable of single line core 11 is carried out to remove except the cable core of wet construction
Wet equipment, including form the gas handling system of air inlet gas circuit and the outlet system for forming outlet gas circuit.
Gas handling system includes air inlet dry filtrating equipment 1, air-intake heating mechanism 2, air inlet open and close device 3.Air inlet dry filter
The air inlet of device 1 communicates with the external world and forms air intake 9, and gas outlet and the inlet air heating of air inlet dry filtrating equipment 1 fill
Put 2 air inlet to be connected, the gas outlet of air-intake heating mechanism 2 is connected with the air inlet of air inlet open and close device 3, air inlet open and close device
3 gas outlet and the first end of the core 11 of cable are mutually tightly connected.Outlet system includes the vacuum air pump 8 for being evacuated,
The air inlet of vacuum air pump 8 and the second end of the core 11 of cable are mutually tightly connected, and the gas outlet of vacuum air pump 8 forms sky
Gas outlet 10.
Air inlet dry filtrating equipment 1 is used to filtering and drying gas therein.As shown in Figure 2, air inlet dry filter fills
Put 1 include setting gradually be used for the dedusting of the wherein impurity such as dust is removed to filter gas by filter screen or miscellaneous part
Purifying layer 11, be provided with renewable active drying agent and be used for dry gas and remove the drying layer 12 of wherein moisture, for temporary
Deposit the air accumulator 13 of gas.The air inlet of air inlet dry filtrating equipment 1 is connected with dust separation layer 11, air inlet dry filter dress
1 gas outlet is put with air accumulator 13 to be connected.Dust separation layer 11 can also be further subdivided into except knoisphere and purifying layer, the two
The dust size that can be removed is different, realizes rough dusting except knoisphere first removes the dust of larger particles, purifying layer is again
The dust of smaller particle is removed and realizes final dusting.The gas humidity of detection wherein gas humidity is provided with air accumulator 13
Detector.One detection gas can also be set in the gas outlet of the air inlet dry filtrating equipment 1 that is, at the gas outlet of air accumulator 13
The pressure gauge 14 of pressure.
Air-intake heating mechanism 2 is used to heat wherein gas.As shown in Figure 3, heating unit includes heating cabinet 21, is arranged at
Several adding thermal resistances 22 on heating cabinet 21, for detecting gas temperature in heating cabinet 21 and producing the temperature of temperature control signals
Degree controller 23, the temperature for being connected with temperature controller 23 and being controlled adding thermal resistance 22 whether to work according to temperature control signals
Control relay 24.
Air inlet open and close device 3 is used to control air inlet gas path on-off.As shown in Figure 4, air inlet open and close device 3 includes folding relay
31st, the open and close device 32 for being arranged in air inlet gas circuit and being controlled by folding relay 31.
The cable core dehumidification equipment further includes two pyrocondensation sealing connectors 4, and two pyrocondensation sealing connectors 4 are used respectively
In the first end of the core 11 for the gas outlet and cable for realizing air inlet open and close device 3 sealed connection and be used for realization the core of cable
11 second end and the sealed connection of the air inlet of vacuum air pump 8.
Can also be respectively arranged with air humidity detector 5 in air inlet gas circuit, outlet gas circuit, and in air inlet gas circuit, into
The downstream set temperature display 6 of gas heating unit 2 carrys out the temperature of gas after real-time display heating.
When dehumidifying using above scheme to cable, start vacuum air pump 8 and be evacuated, outside air first passes through air inlet
The filtering and drying of dry filtrating equipment 1, then the heating by air-intake heating mechanism 2, electricity is entered when air inlet open and close device 3 is opened
Circulate in cable and extracted out by vacuum air pump 8, so as to take away moisture in cable, realize dehumidification function.
In above scheme：
1st, the selection of vacuum air pump 8
There are vacuum gas filling machine and vacuum air pump 8 using most cable demoisture removing apparatus at present, by data consultation and site operation
Experience is proved, it is found that the applicability of vacuum air pump 8 is better than vacuum gas filling machine, reason is as follows：
High-pressure cross-linking cable insulation is to be in hyperbar state, insulation position after the completion of production when entering curing tube in process of production
In normal barometric pressure state.If toward 11 inner inflatable of core, then will be in high pressure conditions because of the entrance of gas inside cable insulation.
If air pressure is excessive, the Minute pores for causing insulating layer to be produced during high-voltage crosslinking are expanded so that insulating layer produces micro-
Small slight crack, part micro-fractures are possible to puncture in completion test, hide some dangers for for the operation of later stage cable.
2nd, the design of air inlet dry filtrating equipment 1
When vacuum air pump 8 is evacuated the cable core 11 to make moist, it is necessary to flow into substantial amounts of extraneous air, at this moment need
Dedusting and purification, then re-dry, therefore devise foregoing air inlet dry filtrating equipment 1 first are carried out to air.Air inlet is dried
Filter device 1 is dust separation layer 11, the drying layer 12 sequentially mechanically connected, and outside air initially enters dust separation layer 11, is come
The impurity such as dust in air are filtered out, can so prevent from taking dust or other materials for being unfavorable for cable inside cable to, shadow
Ring the normal use of cable.Air by purification enters drying layer 12, is dried, circular regeneration is filled with drying layer 12
Formula active drying agent.This recyclable regenerative formula active drying agent is a kind of drier of environmentally friendly recyclable recycling, can be
Air humidity drops to less than 5%.Have a gas humidity detector in air accumulator 13, when air it is unseasoned to desired humidity when,
Reinforcement drying process is carried out to air inlet by adding, replacing drier, until detecting that air humidity meets the requirements.Due to cable
Length is grown, the small characteristic of air passage, when being dried using dry gas, vacuum suction of the dry gas in the cable other end
Enter cable under the pressure of machine 8, by the whole cable of dry gas acting on cmpletely, reach dry cable watered and wetting
Partial best-of-breed technology effect.Gas is after the drying of drying process layer, and under the action of vacuum air pump 8, dry gas can
Reach 0-6 kilograms of pressure.
3rd, the pyrocondensation connection of tracheae and cable
Medium-pressure power cable is usually longer, and core 11 is all to use compacting pressing structure, 11 gap very little of core, extraneous high pressure drying
If gas will be unable to fully be filled with cable without the help of sealing shroud, and midium voltage cable model is different, core 11（Containing insulating layer）
Section differs greatly, therefore the gas outlet for designing air inlet open and close device 3 connects tracheae and sealed by the pyrocondensation of pyrocondensation sealing mode
Connector 4 is tightly connected with 11 phase of cable core, and the tracheae that cable core 11 is connected with the air inlet of vacuum air pump 8 also leads to
Pyrocondensation 4 phase of sealing connector for crossing pyrocondensation sealing mode is tightly connected.
4th, the design of air-intake heating mechanism 2
Air-intake heating mechanism 2 in this programme by resistance heating, using thermostat relay 24 conducting and cut-off control heating
The start and stop of resistance 22, and then control the temperature of air inlet.The design of the air-intake heating mechanism 2 so that this programme can be widely used in
Various working environments.
5th, air inlet open and close device 3
Air gap channel inside cable core 11 is not a smooth path, the lines of 11 insulating layer inner wall of cable core with
The winding direction distribution of 11 copper wire of core.The larger space in 11 internal clearance of cable core, to core 11 inside be filled with gas after
Air-flow circulates comparatively fast in these spaces, these spaces are known as the air-flow primary path inside core 11；Some skies of the inside of core 11
The less space in gas gap, to core 11 inside be filled with after gas that air-flow is smaller relatively slow in these circulations, these spaces are known as line
Air-flow pair path inside core 11.The more secondary path of air-flow velocity of primary path is fast, so the relatively secondary path of the air pressure of primary path
For be negative pressure.Dry air stream is quickly through the steam that can be taken away quickly during primary path on primary path, but secondary path is but
Because air-flow is smaller, air flow is slow, cause the steam drying efficiency of this segment space relatively low, so as to cause cable
The overall steam drying whole efficiency of core 11 is unsatisfactory for requiring.
Air inlet open and close device 3 is designed in this programme, is controlled by turning on according to certain rules for folding relay 31 with shut-off
The circulation of air-flow.Under the folding of folding relay 31, flow during air stream inside core 11, when and close, then it is main
Respective change also occurs for the air pressure relation of path and secondary path.The air pressure of primary path is low during air circulation, folding relay
The air pressure of primary path is identical with the air pressure of secondary path when device 31 is cut-off, and the change of 11 air pressure inside of core causes primary path to lead to pair
The gas exchanges on road are accelerated.When air-flow is cut-off, the hyperbar of secondary path forces the gas of secondary path to hypobaric primary path
Flowing so that the steam remained in secondary path clearance is flowed to primary path；These steam are again with drying after air-flow conducting
Gas discharged by primary path, accelerate core 11 drying efficiency.
Embodiment two：When cable core 11 to be dehumidified is n（N is the positive integer more than 1）During root, using the present embodiment
Scheme.Illustrated below by taking n=3 as an example.
As shown in Figure 5, in addition to part included in embodiment one, the cable core dehumidifying in the present embodiment
Equipment further includes gas converter 7, between the gas outlet of air inlet open and close device 3 and the first end of the n roots core 11 of cable, cable
Realized and connected by gas converter 7 between the second end of n roots core 11 and the air inlet of vacuum air pump 8.Such as the institute of attached drawing 6
Showing, gas converter 7 includes the gas conduit 71 that n+1 roads one end is connected, and on every road gas conduit 71 of gas converter 7
Operation valve 72 is respectively arranged with to control its break-make.For being arranged at the gas outlet of air inlet open and close device 3 and the n roots core 11 of cable
First end between gas converter 7, its n+1 roads gas conduit 71 gas outlet with air inlet open and close device 3, the n of cable respectively
The first end of root core 11 is connected.And the second end of the n roots core 11 for being arranged at cable and the air inlet of vacuum air pump 8
Gas converter 7 between mouthful, its n+1 roads gas conduit 71 second end with the n roots core 11 of cable, vacuum air pump respectively
8 air inlet is connected.Between the first end of the n roots core 11 of gas converter 7 and cable, the of the n roots core 11 of cable
4 phase of connector is sealed between two ends and gas converter 7 by pyrocondensation to be tightly connected.
In the present embodiment, due to dehumidifying for three cores, 11 cable, gas converter 7 therein for one into
Three go out type gas converter 7 or three goes out type gas converter 7 into one.After the gas converter 7, cable core can be improved
The service efficiency of dehumidification equipment and flexibility, it is convenient handle at the same time a plurality of cable core 11 into water problems.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should be covered by the protection scope of the present invention.
Claims (10)
- A kind of 1. cable core dehumidification equipment, for carrying out removing wet construction to cable, it is characterised in that：The cable core dehumidifying Equipment includes forming the gas handling system of air inlet gas circuit, the outlet system for forming outlet gas circuit；Air inlet dry filtrating equipment that the gas handling system includes being used to filtering and dry wherein gas, for heating wherein gas Air-intake heating mechanism, the air inlet open and close device for controlling the air inlet gas path on-off；The air inlet dry filtrating equipment into Gas port communicates with the external world and forms air intake, gas outlet and the air-intake heating mechanism of the air inlet dry filtrating equipment Air inlet is connected, and the gas outlet of the air-intake heating mechanism is connected with the air inlet of the air inlet open and close device, the air inlet The gas outlet of open and close device and the first end of the core of the cable are mutually tightly connected；The outlet system includes the vacuum air pump for being evacuated, the line of the air inlet of the vacuum air pump and the cable The second end of core is mutually tightly connected, and the gas outlet of the vacuum air pump forms air outlet slit.
- 2. cable core dehumidification equipment according to claim 1, it is characterised in that：The air inlet dry filtrating equipment includes What is set gradually is used to filter gas and remove the dust separation layer of wherein impurity, be provided with renewable active drying agent and be used for Dry gas and remove the wherein drying layer of moisture, the air accumulator for keeping in gas, the air inlet dry filtrating equipment into Gas port is connected with the dust separation layer, and the gas outlet of the air inlet dry filtrating equipment is connected with the air accumulator.
- 3. cable core dehumidification equipment according to claim 2, it is characterised in that：It is provided with the air accumulator and detects it The gas humidity detector of middle gas humidity.
- 4. cable core dehumidification equipment according to claim 1, it is characterised in that：The heating unit include heating cabinet, Several adding thermal resistances for being arranged on the heating cabinet, for detecting gas temperature in the heating cabinet and producing temperature control The temperature controller of signal, be connected with the temperature controller and controlled the heating electric according to the temperature control signals Hinder the thermostat relay whether to work.
- 5. cable core dehumidification equipment according to claim 1, it is characterised in that：The air inlet open and close device include folding after Electric appliance, the open and close device for being arranged in the air inlet gas circuit and being controlled by the folding relay.
- 6. cable core dehumidification equipment according to any one of claim 1 to 5, it is characterised in that：The cable core Dehumidification equipment further includes the sealing company for being used for realization the gas outlet of the air inlet open and close device with the first end of the core of the cable Connect and be used for realization the pyrocondensation envelope of the sealed connection of the second end of the core of the cable and the air inlet of the vacuum air pump Mouth connector.
- 7. cable core dehumidification equipment according to any one of claim 1 to 5, it is characterised in that：The cable core Dehumidification equipment further includes gas converter, and the gas converter includes the gas conduit that n+1 roads one end is connected, the air inlet Between the first end of the n root cores of the gas outlet of open and close device and the cable, the second end of the n root cores of the cable with it is described Realized and connected by the gas converter between the air inlet of vacuum air pump；It is arranged at the outlet of the air inlet open and close device Mouthful and n roots described in cable n root cores first end between the gas converter n+1 roads gas conduit respectively with it is described The gas outlet of air inlet open and close device, the first end of n root cores of the cable are connected, and are arranged at the n root cores of the cable The n+1 roads gas conduit of the gas converter between the air inlet of second end and the vacuum air pump respectively with the electricity The second end of the n root cores of cable, the air inlet of the vacuum air pump are connected；N is the positive integer more than 1.
- 8. cable core dehumidification equipment according to claim 7, it is characterised in that：The gas converter and the cable N root cores first end between, between the second end of the n root cores of the cable and the gas converter pass through pyrocondensation Sealing connector is mutually tightly connected.
- 9. cable core dehumidification equipment according to claim 7, it is characterised in that：Described in every road of the gas converter Operation valve is respectively arranged with gas conduit.
- 10. cable core dehumidification equipment according to claim 1, it is characterised in that：The air inlet gas circuit, the outlet gas Air humidity detector is respectively arranged with road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337122.XA CN108023321A (en) | 2017-12-14 | 2017-12-14 | Cable core dehumidification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337122.XA CN108023321A (en) | 2017-12-14 | 2017-12-14 | Cable core dehumidification equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023321A true CN108023321A (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711337122.XA Pending CN108023321A (en) | 2017-12-14 | 2017-12-14 | Cable core dehumidification equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112072597A (en) * | 2020-09-07 | 2020-12-11 | 广东电网有限责任公司 | Underground cable protector |
| CN115117799A (en) * | 2022-07-12 | 2022-09-27 | 远东电缆有限公司 | Method for treating water inflow or damage and damp of extra-high voltage cable |
| CN115419571A (en) * | 2022-08-30 | 2022-12-02 | 广东电网有限责任公司 | Automatic cable dewatering and dehumidifying device |
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| CN112072597A (en) * | 2020-09-07 | 2020-12-11 | 广东电网有限责任公司 | Underground cable protector |
| CN112072597B (en) * | 2020-09-07 | 2022-01-18 | 广东电网有限责任公司 | Underground cable protector |
| CN115117799A (en) * | 2022-07-12 | 2022-09-27 | 远东电缆有限公司 | Method for treating water inflow or damage and damp of extra-high voltage cable |
| CN115117799B (en) * | 2022-07-12 | 2023-11-28 | 远东电缆有限公司 | Treatment method for water inflow or damage and damp of extra-high voltage cable |
| CN115419571A (en) * | 2022-08-30 | 2022-12-02 | 广东电网有限责任公司 | Automatic cable dewatering and dehumidifying device |
| CN115419571B (en) * | 2022-08-30 | 2024-04-12 | 广东电网有限责任公司 | Automatic dehydrating and dehumidifying device for cable |
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