CN203826866U - 10kV molded cable middle joint automatic heating temperature control instrument - Google Patents
10kV molded cable middle joint automatic heating temperature control instrument Download PDFInfo
- Publication number
- CN203826866U CN203826866U CN201420121564.6U CN201420121564U CN203826866U CN 203826866 U CN203826866 U CN 203826866U CN 201420121564 U CN201420121564 U CN 201420121564U CN 203826866 U CN203826866 U CN 203826866U
- Authority
- CN
- China
- Prior art keywords
- temperature control
- middle joint
- control instrument
- heating
- molded cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 210000001503 joint Anatomy 0.000 title abstract 9
- 238000000465 moulding Methods 0.000 claims abstract description 29
- 239000010445 mica Substances 0.000 claims abstract description 11
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000012774 insulation material Substances 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000009421 internal insulation Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010048909 Boredom Diseases 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 240000005572 Syzygium cordatum Species 0.000 description 1
- 235000006650 Syzygium cordatum Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a 10kV molded cable middle joint automatic heating temperature control instrument. The 10kV molded cable middle joint automatic heating temperature control instrument is composed of a temperature control part and a mica heating coil (2); the temperature control part comprises a K type thermocouple (3) which is arranged at a heating portion and is connected with voltage temperature input ports (6) of a temperature control instrument (1) through wires; and the temperature control instrument is connected with the mica heating coil (2) through temperature control voltage output ports (7) and by means of wires. According to the 10kV molded cable middle joint automatic heating temperature control instrument of the utility model, the mica heating coil is adopted to heat a mould, and therefore, each angle can be uniformly heated, and internal insulation materials can be melt completely, and requirements for production process standards of a middle molding head can be completely satisfied, and the service life of the middle joint of a cable can be ensured; temperature is display in a digital form, which enables easiness in observation and preciseness in temperature control; heating speed is high, and the labor intensity of the operator can be decreased, and man-made factors that may affect the service life of the middle joint of the molded cable can be decreased; and the 10kV molded cable middle joint automatic heating temperature control instrument is light, so that the 10kV molded cable middle joint automatic heating temperature control instrument is convenient to carry and install, and compared with traditional blowtorch heating work, the cost of the 10kV molded cable middle joint automatic heating temperature control instrument is very low.
Description
Technical field
The utility model relates to electric power system erection unit, relates in particular to a kind of 10kV molding cable mid head Automatic-heating temperature controller.
Background technology
10 kilovolts of molding cable mid heads are to adopt the material identical with cable main insulating layer to recover cable main insulation, but due in bake process, do not have strict by technique carry out (shorten baking time, toast inhomogeneous that insulating barrier is heated is inhomogeneous) excess Temperature ageing of insulation, the too low insulating barrier of temperature not have fusing all can cause the insulating barrier of recovery to become one with cable main insulating layer, there is narrow and small gap in centre, water easily infiltrates to enter to discharge, or in manufacturing process the aging minimizing cable of the overheated generation of insulating barrier service life.
Take Dandong, Dandong as example, 412 119 kilometers, the existing 10kV cable in Dandong, wherein backbone cable is 186,96 kilometers, account for 80% of joint current overall length, main cable single cable is more than 550 meters have 70, and 68 kilometers account for 80% of main cable, and the continental monsoon climate of north temperate zone directly under the jurisdiction of a municipal government, Donggang City humid region.Affected by the Huanghai Sea, there is marine climate feature.Winter is without severe cold, summer is without heat, make a clear distinction between the four seasons, in rain same season of heat, precipitation 900---1000 millimeter, owing to adjoining the Huanghai Sea, Dandong level of ground water is higher, the degree of depth of cable laying is basic to maintain an equal level with level of ground water, and this just requires cable mid head to have extraordinary water proofing property, just can prevent that cable generation water from setting and causing cable insulation to puncture generation trip accident.By these several years, the cable mid head analysis of Dandong damage is summed up and reached a conclusion, molding cable end medial head has good sealing, is particularly useful for Dandong.But molding cable mid head is long in Production Time, many construction teams are in order to work to tight deadlines or the labour intensity of workman when reducing baking.And having shortened the baking time of molding cable mid head, this has just caused molding cable mid head not to be melted into one completely, or cable insulation is heated inhomogeneously, has not fusing of partial insulative layer.Long-play, causes insulating barrier infiltration that the electric discharge of water tree occurs, and causes cable mid head fault.Owing to adopting thermometer temperature control, cause heating-up temperature non-constant, affect the life-span of cable insulation material.
Summary of the invention
For solving above-mentioned the deficiencies in the prior art, the utility model provides a kind of 10kV molding cable mid head Automatic-heating temperature controller.Utilize electrothermic die to cover medial head surface and make it to be heated evenly, with temperature control instrument, control the temperature of electrothermic die, can make electrothermic die all the time in ideal temperature, avoid cable main insulation material in heating process, to occur aging.
The utility model is achieved through the following technical solutions:
10 kilovolts of molding cable mid head Automatic-heating temperature controllers, by temperature control part and mica heating collar, formed, temperature control partly comprises that the K-type thermocouple that is placed on heating position connects temperature controller voltage temperature input port by wire, and temperature controller is connected with mica heating collar through wire by temperature control voltage output port.
Described temperature controller comprises that REX c-100 thermostat connects respectively solid-state relay and voltage temperature input port, and solid-state relay is connected with power input terminal, temperature control voltage output port respectively.
The utility model has the advantages of:
1, adopt each angle of mica heating collar heating mould to be heated evenly, guarantee that inner insulation material is all melted, thereby can reach the life-span of the manufacture craft standard assurance cable mid head of middle molding head completely.
2, temperature digital demonstration is easy to observe, and temperature is controlled accurately.
3, do not need long-time hand-held firing equipment heating only to need fast by key controlled temperature adjustment and firing rate, can reduce operating personnel's labour intensity, thereby reduce the life-span that human factor affects molding cable mid head.
4, electronic temperature controller is lightweight is easy to carry and installs, and it is very cheap to compare traditional blowtorch heating work cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model temperature controller host circuit structural representation;
In figure: 1, temperature controller main frame, 2, mica heating collar, 3, K-type thermocouple, 4, REX c-100 thermostat, 5, solid-state relay, 6, voltage temperature input port, 7, temperature control voltage output port, 8, power input terminal.
Embodiment
Embodiment
As shown in Figure 1, 2,10 kilovolts of molding cable mid head Automatic-heating temperature controllers, by temperature control part and mica heating collar 2, formed, temperature control partly comprises that the K-type thermocouple 3 that is placed on heating position connects temperature controller 1 voltage temperature input port 6 by wire, and temperature controller is connected with mica heating collar 2 through wire by temperature control voltage output port 7.Described temperature controller 1 comprises that REX c-100 thermostat 4 connects respectively solid-state relay 5 and voltage temperature input port 6, and solid-state relay 5 is connected with power input terminal 8, temperature control voltage output port 7 respectively.
The utility model is applied to Dandong for area, port, by two classes of practical operations of power supply branch, Donggang City distribution fortune inspection, tested, through test of many times proof and on-the-spot application, adopt electrically heated molding cable mid head, have and be heated evenly, insulating material is not aging, can not produce the technological standards that gas reaches mould drop-head completely in heating process, thereby has extended the service life of mould drop-head.
Compare with adopting original blowtorch heating means, present embodiment has obvious beneficial effect.
1, rules require 10 kilovolts of molding cable mid heads heating will from room temperature be raised to 120 ℃ keep 0.5 hour, then rise to 150 ℃ and keep 1 hour, then be raised to gradually 165 ℃ and keep 1.5 hours.Needing altogether heating time is 3 hours.Adopt blowtorch Heat artificially because heating time is long, thereby thereby can cause operating personnel to have boredom to reduce the amount processed that affects cable molding head heating time.And the labour intensity that adopts 10 kilovolts of molding cable mid head Automatic-heating temperature controllers (only needing button temperature adjustment) can reduce operating personnel can reduce the life-span that human factor affects molding cable mid head.
2, adopt the flame of thermometer temperature control blowtorch in heating process can make thermometer generation Decrepitation Phenomena (thermometer includes mercury) pollute the environment.Generally doing a molding cable mid head all can an explosion 2-3 thermometer.And just can avoid this phenomenon to occur with adopting temperature controller, protection of the environment.
3, adopt 10 kilovolts of molding cable mid head Automatic-heating temperature controllers to manufacture cable mid head, thereby each angle of mould is heated evenly and guarantee that inner insulation material is all melted and guarantee in cable
Between head life-span.
If adopt blowtorch operation meeting to make cable well temperature increase while 4, making cable mid head in cable shaft, and the carbon monoxide entail dangers to producing after blowtorch burning is to the safety to operating personnel, and adopt 10 kilovolts of molding cable mid head Automatic-heating temperature controllers to make cable molding cable mid head, just can avoid this phenomenon to occur.
5, use blowtorch to make the required expense of molding cable mid head and be about 15 yuan (3, thermometer is total to partly 9 yuan, 6 yuan of propane gas), and adopt 10 kilovolts of molding cable mid head Automatic-heating temperature controllers only to need (3 yuan)
6, adopt 10 kilovolts of molding cable mid head Automatic-heating temperature controllers to manufacture the manufacture craft standard that cable mid head can reach middle molding head completely, thereby guaranteed the useful life of molding cable mid head.
Claims (2)
1.10 kilovolts of molding cable mid head Automatic-heating temperature controllers, it is characterized in that being formed by temperature control part and mica heating collar (2), temperature control partly comprises that the K-type thermocouple (3) that is placed on heating position connects temperature controller (1) voltage temperature input port (6) by wire, and temperature controller is connected with mica heating collar (2) through wire by temperature control voltage output port (7).
2. 10 kilovolts of molding cable mid head Automatic-heating temperature controllers according to claim 1, it is characterized in that described temperature controller (1) comprises that REX c-100 thermostat (4) connects respectively solid-state relay (5) and voltage temperature input port (6), solid-state relay (5) is connected with power input terminal (8), temperature control voltage output port (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121564.6U CN203826866U (en) | 2014-03-18 | 2014-03-18 | 10kV molded cable middle joint automatic heating temperature control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121564.6U CN203826866U (en) | 2014-03-18 | 2014-03-18 | 10kV molded cable middle joint automatic heating temperature control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826866U true CN203826866U (en) | 2014-09-10 |
Family
ID=51482330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121564.6U Expired - Lifetime CN203826866U (en) | 2014-03-18 | 2014-03-18 | 10kV molded cable middle joint automatic heating temperature control instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022471A (en) * | 2014-03-18 | 2014-09-03 | 国家电网公司 | 10kV moulding cable middle connector self-heating temperature controller and operation method |
-
2014
- 2014-03-18 CN CN201420121564.6U patent/CN203826866U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022471A (en) * | 2014-03-18 | 2014-09-03 | 国家电网公司 | 10kV moulding cable middle connector self-heating temperature controller and operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |