CN110197746A - Gas dam cable and its manufacturing method - Google Patents
Gas dam cable and its manufacturing method Download PDFInfo
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- CN110197746A CN110197746A CN201910138650.5A CN201910138650A CN110197746A CN 110197746 A CN110197746 A CN 110197746A CN 201910138650 A CN201910138650 A CN 201910138650A CN 110197746 A CN110197746 A CN 110197746A
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- fender
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- gas dam
- gas
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
A kind of gas dam cable includes more stranding electric wires, wherein every electric wire includes multiple stranding conductors, has gap area between the multiple stranding conductor.Insulating materials is circumferentially around the multiple stranding conductor, and Conductive fill material is in the gap area between conductor.First fender is circumferentially around the twisted conductor and high temperature filler, to separate drainage thread.Second fender is circumferentially around the more stranding electric wires and the drainage thread, so that being formed in the cable between first fender and second fender with multiple regions.Electric wire packing material is in the multiple region between the more electric wires and the multiple fender.Each of the Conductive fill material and electric wire packing material are temperature that is inert, nonflammable and being able to bear at least about 200 DEG C.
Description
Cross reference to related applications
This application claims the preferential of on 2 26th, 2018 U.S. Non-provisional Patent patent application serial numbers 15/905,356 submitted
Power.The part for the U.S. Non-provisional Patent patent application serial numbers 15/816,249 that the application or on November 17th, 2017 submit connects
Case, the U.S. Non-provisional Patent application are to be used as U.S. Non-provisional Patent patent application serial numbers 13/ on October 12nd, 2012
The connecting case of 650,729 the 9th, 837, No. 187 United States Patent (USP)s that are submitting and being promulgated on December 5th, 2017, the U.S.
It entitled " the GAS BLOCKING CABLE AND METHOD OF MANUFACTURING " of patent and requires 2011 10
The priority of U.S. Provisional Patent Application Serial No. 61/547,168 that the moon is submitted on the 14th, each of which complete disclosure with
The mode of reference is incorporated herein.
Technical field
The present invention relates generally to multiconductor cables, and more specifically to one kind can stop high pressure gas and
The method that other fluids pass through the multiconductor cable of the clearance space of cable and manufacture the cable.
Background technique
Power generation turbine is generally held in area of isolation, explosion time protection individual is occurring.Biography from turbine
Sensor via more conductor sensor cables in turbine control room instrument and equipment communicate.It is sent out in turbine area of isolation
In the case where raw explosion, when using the conventional multiconductor cable of no choke ability, high pressure pernicious gas is passed through between cable
Gap space reaches control room, and may damage to the personnel of operation control room.In the past, only in cable gland component
Choke is realized with the connection of frame wall.However, such method can leave the leakage path of the clearance space across cable.It needs
Want a kind of multiconductor cable for eliminating clearance leakage access.
Ocean industry is using always water repellent electric cable for many years.However, such cable can not have been prevented explosion time occurs
Evil high pressure gas leakage.In addition, such cable cannot bear the high cable operation temperature environment of power generation turbine application (up to
200℃)。
IEC (International Electrotechnical Commissio) issued specification EN-60079-14 in 2008.The specification, which covers, to be sent out
The instrument cable used on electric turbine.The cable required therefore, it is necessary to meet new stringent IEC.Although in water repellent electric cable
Used flow-retarding technique, as mentioned previously, but meet IEC require necessary to " explosion-proof " cable rated temperature and pressure want
Seek the ability far beyond water repellent electric cable technology.
The newest variation that 1277 shock-testing of UL requires requires two outsides that gas dam cable is removed during shock-testing
Braided fabric.In order to meet new demand, following steps have been had taken up to reduce the impact to multiple insulated electric conductors in cable.It needs
Want a kind of cable for meeting choke requirement while meeting UL 1277 and requiring.
Summary of the invention
In a first aspect, present disclose provides a kind of gas dam cables, comprising: more electric wires, every electric wire include: multiple lead
Body has the first space in-between；Insulating materials, circumferentially around the multiple conductor；And Conductive fill material, position
In first space between the multiple conductor；Drainage thread is twisted together with the more electric wires, wherein first
Fender separates the drainage thread and the more electric wires, thus the shape between first fender and the more electric wires
At second space；Second fender, circumferentially around the more electric wires and the drainage thread, so that it is anti-to be formed in described first
Protect the cable between object and second fender with third space；Electric wire packing material, be located at the second space with
And in the third space between first fender and second fender；And sheath, it is extruded and all
To second fender is surrounded, wherein each of the Conductive fill material and the electric wire packing material are inertia
, temperature nonflammable and that be able to bear at least about 200 DEG C, and further wherein the gas dam cable stops high pressure gas
Body or high-pressure fluid pass through first space, the second space and the third space to prevent the high pressure gas or institute
High-pressure fluid is stated to pass through.
Optionally, the gas dam cable further includes the high-temperature glass fibre braided fabric circumferentially around the sheath.
Optionally, first fender is spirally-wound polyester tape.
Optionally, second fender is aluminium and polyester tape.
Optionally, the more electric wires are twisted.
Optionally, the gas dam cable further includes the high temperature filler component being twisted together with the more electric wires.
Optionally, first fender is circumferentially around the more electric wires and the high temperature filler component.
Optionally, the electric wire packing material is silicone compounds.
Optionally, the Conductive fill material is silicone compounds.
Optionally, the high pressure gas or the high-pressure fluid are up to 435psi (or about 3,000kPa).
Optionally, the gas dam cable passes through fluid leak-testing under the high pressure of (or about 3,000kPa) 435psi, and
And it is able to bear and is up to about 200 DEG C of temperature.
On the other hand, present disclose provides a kind of gas dam cables, comprising: more twisted electric wires, every electric wire includes: more
A conductor has the first space in-between；Insulating materials, circumferentially around the multiple conductor；And Conductive fill material,
In its described first space between the multiple conductor；High-temperature glass fibre filler component, with the more electric wires
It is twisted together；Drainage thread is twisted together with the more electric wires, wherein the first fender is circumferentially around the more electric wires
With the high temperature filler component, and the drainage thread and the more electric wires and the high temperature filler component are separated, thus
Second space is formed between first fender and the more electric wires；Second fender, circumferentially around described more
Electric wire, the high temperature filler component and the drainage thread so that be formed in first fender and second fender it
Between with third space cable；Electric wire packing material is located at first fender, the more electric wires and the high temperature
In the second space between filler component, and further wherein the electric wire packing material is located in first protection
In the third space between object and second fender；And sheath, it is extruded and circumferentially around described second
Fender, wherein each of the Conductive fill material and the electric wire packing material be it is inert, nonflammable and
It is able to bear at least about 200 DEG C of temperature, and further wherein the gas dam cable stops high pressure gas or high-pressure fluid
Across first space, the second space and the third space to prevent the high pressure gas or the high-pressure fluid from wearing
It crosses.
Optionally, the gas dam cable further includes the high-temperature glass fibre braided fabric circumferentially around the sheath.
Optionally, first fender is the polyester tape of spiral winding.
Optionally, second fender is aluminium and polyester tape.
Optionally, the electric wire packing material and the Conductive fill material are different materials.
Optionally, the electric wire packing material is silicone compounds.
Optionally, the Conductive fill material is silicone compounds.
Optionally, the high pressure gas or the high-pressure fluid are up to 435psi (or about 3,000kPa).
Optionally, the gas dam cable passes through fluid leak-testing under the high pressure of (or about 3,000kPa) 435psi, and
And it is able to bear and is up to about 200 DEG C of temperature.
Detailed description of the invention
Fig. 1 is the cross-sectional view of one embodiment of gas dam cable of the invention；
Fig. 2 is the schematic diagram for being used to form the first embodiment of the bringing device of cable of Fig. 1；
Fig. 3 is the schematic cross section of the applicator of the bringing device of Fig. 2；
Fig. 4 is the schematic cross section for being used to form the second embodiment of the bringing device of cable of Fig. 1；
Fig. 5 is the schematic cross section for being used to form the 3rd embodiment of the bringing device of cable of Fig. 1；
Fig. 6 is the schematic cross section for being used to form the fourth embodiment of the bringing device of cable of Fig. 1；
Fig. 7 is the flow chart for showing one embodiment of gas dam cable manufacturing process of the invention；And
Fig. 8 is the cross-sectional view of the second embodiment of the gas dam cable of various aspects according to the present invention.
Specific embodiment
It, can be by changing although hereinafter describing gas dam cable of the invention from the angle that power generation turbine is applied
Become selected material and configuration (quantity of conductor, electric wire etc.) to be used for other application.As used in these applications
Many variations of multiconductor cable and the non-circular cross sections of these cables, preferably and the little configuration of existing cable deviation.
This enables end user without using cable of the invention in the case where varying significantly to hardware and installation process.
This results in a challenge, i.e., biggish clearance space needs can solidify and will not shadow after the treatment between filling conductor
Ring the filling compound flexible of cable.
Gaseous fluid leakage can be by being occurred with down space: a) space between the strand of conductor, b) by insulating twisted
Space between the independent electric wire of conductor composition and c) aluminium/wheat draws the space between adhesive tape and external fluoropolymer sheath.
It is therefore apparent that the requirement for needing to block this three accesses to meet gas dam cable.
One embodiment of gas dam cable of the invention is substantially as shown at 10 in figure 1.Shown embodiment includes multiple
Insulated electric conductor 12.Only as an example, conductor can be 14AWG, 19 strands of silver-coated copper wires.Strand clearance space or region 15 are filled with
Silicone compounds.Insulating materials 18 is circumferentially around conductor.Only as an example, insulator 18 can be spirally-wound polyamides Asia
Amine adhesive tape, the liquid polyimides external coating with heat cure.
The electric wire 20a and 20b and drainage thread (drain wire) 22 and filler 24 being made of insulated electric conductor 12 are stranded in one
It rises, makes cable that there is circular contour.Only as an example, drainage thread 22 is 16AWG tinned wird.High temperature filler 24 is preferably to squeeze
Press silicone or FEP monofilament.
Twisted conductor 20a and 20b, drainage thread 22 and high temperature filler component 24 are wound with fender 36, so that its week
To surrounding.Only as an example, fender 36, which can be aluminium/wheat, draws adhesive tape.Sky between twisted conductor, drainage thread and high temperature filler
Between or region 38 be filled with silicone compounds.
Sheath 42 is extruded on fender 36, and only squeezes FEP (fluorinated ethylene propylene) as an example, can be.
Only as an example, the nominal diameter of restrictive coating 42 can be 0.212 inch.High-temperature glass fibre braided fabric 44 preferably covers shield
Set 42, while the preferably cover glass fibrous braid 44 of stainless steel braid 46.In some cable configurations, compiled in stainless steel
Apply additional extruding FEP sheath on fabric.
It should be appreciated that the embodiment of the gas dam cable of Fig. 1 is only example, and cable of the invention can be replaced with many
Many alternative configurations are configured to for material and any number of conductor, electric wire, drainage thread and/or filler.
A variety of packing material compounds can be used for the gap in filled cable in the above described manner and other spaces or region.
Packing material must be temperature that is inert, nonflammable and being able to bear and be suitable for operating up at least about 200 DEG C.It is preferred that
Ground uses bicomponent normal temperature curable silicone compound.Although preferably using such silicone compounds, but can be alternative
Ground uses other the suitable compounds of this field.The example of suitable silicone compounds includes but is not limited to the following terms:
A. the single-component thermosetting silicone TSE-322 produced by Momentive company.
B. bi-component silicone CST-2127.This is a kind of room temperature curing bi-component silicone compound, can be from the Maine State than Defo moral
Cri-Sil silicone technology Co., Ltd (the Cri-Sri Silicone Technologies of (Biddeford, Maine)
LLC it) buys.
C. bi-component silicone CST-2327.This is the modified version of CST 2127 and is for example in the embodiment of Fig. 1
It is preferred that silicone compounds, and can also be bought from the Maine State than the Cri-Sil silicone technology Co., Ltd of Defo moral.
It, must be in cabling process or proper in order to make compound enter the space between different insulative conductor and electric wire
Fortunately aluminium/wheat draws adhesive tape to twine and applies in the separate processes before being set on cable.Fig. 2 to Fig. 6, which is shown, can be used for the purpose
Bringing device embodiment.Packing material can apply before or after conductor and/or twisted electric wire.It can be based on cable
Configuration and desired use multiple bringing device next life electricity production cables are used continuously as needed.
In the following example, with reference to Fig. 1, it is assumed that electric wire 20a and 20b are provided via supplier, and clearance space 15 is filled out
Filled with silicon compound (such as those described above silicon compound) or other suitable materials.
The first embodiment of bringing device is in Fig. 2 substantially as shown in 47.As shown in Figures 2 and 3, in figure 2 and figure 3 with
48 show bringing device feature and applicator.As shown in figure 3, applicator includes applying shell 50, pressure chamber 52 is surrounded, is twisted
Electric wire (and any filler, the 24 of such as Fig. 1) 54 is closed just during the stranding operation before band operation across pressure
Chamber 52.
With reference to Fig. 2, a group of bi-component silicone compound is pumped from roller 56a using plunger system or hydraulic pump 58a
Divide (55a), and uses plunger system or hydraulic pump 58b from another component of roller 56b pumping bi-component silicone compound
(55b).Other pumping installations known in the art can be used to replace plunger system or hydraulic pump 58a and 58b.From roller
First component of the silicone compounds of 56a and 56b and the pressurized stream of the second component mix in mixing nozzle 60, and then pass through
Applicator 48 is flowed to by pipeline 62.With reference to Fig. 2, when electric wire (and any filler) 54 passes through chamber, the mixing silicone of pressurization
It closes object 64 and flows through pipeline 62 with silicone compounds to the pressurization of chamber 52.Only as an example, the preferred pressure of chamber 52 is about
2000 to 5000 pounds/square inch (psi).
The second embodiment of bringing device is substantially as shown in 72 in Fig. 4.In this embodiment, silicone compounds are (such as mixed
The bi-component silicone compound of conjunction) it 74 is stored in chamber 76.Pressurizing device 78 pressurizes to chamber 76.Twisted conductor (and filler)
80 pass through the aperture of chamber 76 or mold 77a and 77b (it is used as shaping mould), so that applying silicone compounds to it.From silicon
The supply line 82 that ketone compound source of supply is drawn supplements silicone compounds 74.The example of suitable pressurizing device 78 includes gas
Pump, piston apparatus (wherein piston effect is in silicone compounds 74), or in better simply cable construction, only wear cable
The non-pressurizing vessel filled with silicone is crossed just to be enough to give enough silicone deposits to cable.
The 3rd embodiment of bringing device is substantially as shown in 92 in Fig. 5.In this embodiment, silicone compounds are (such as mixed
The bi-component silicone compound of conjunction) it 94 is stored in container 96, and as shown, make to twist using groove or pulley gear 102
Electric wire (and any filler) 98 " passing through " container is closed, so that applying silicone compounds to it.
The fourth embodiment of bringing device is substantially as shown in 104 in Fig. 6.In this embodiment, silicone compounds are (such as mixed
The bi-component silicone compound of conjunction) it 106 is stored in container 108, and hold twisted conductor (and any filler) 110 " passing through "
Aperture or mold 112a and 112b (it is used as shaping mould) in device, so that applying silicone compounds to it.
As mentioned previously, around with the stranding stage before the stage, bringing device silicone compounds filled cable.Scheming
3, in the case where the embodiment of Fig. 4 and Fig. 6, shaping mould 66 (Fig. 3), 77b (Fig. 4) or 112b (Fig. 6) in chamber outlet exist
The surface of cable is smoothed when cable leaves bringing device.Then using in the prior art (only as an example, such as
The 4th, 767, No. 182 United States Patent (USP) of Parfree et al. is authorized, content is hereby incorporated by reference herein) it is known
Technique adhesive tape twined be located on silicone compounds, electric wire and filler, and further encapsulate silicone compounds, electric wire and fill out
Material.When silicone compounds are still in " paste " stage, adhesive tape provides isolation.The technique must be steady enough, to fill conductor
Between all spaces.
Next process is to draw to squeeze FEP (fluorinated ethylene propylene) sheath on adhesive tape in aluminium/wheat.Since the wheat of adhesive tape is drawn
Plastics incomplete fusion on side and sheath, so the space between adhesive tape and sheath is another potential leakage path.Use second
Bringing device is drawn in aluminium/wheat applies one layer of silicone compounds (such as above-mentioned silicone compounds) on adhesive tape, with 114 in Fig. 1
It indicates.The bringing device can be type shown in any one of Fig. 2 to Fig. 6 or known in the art any other apply
Feeder apparatus, to close this leakage path.Preferably, apply excessive silicone compounds in primary apply, so that aluminium/wheat draws glue
It takes in the presence of remaining layer of silicone.
Then solidification (be with or without and apply temperature) is after making entire cable to solidify silicone compounds.For example, the solidification
It can be accomplished by the following way: a) by carrying out room temperature vulcanization to compound, to realize solidification in 24 hours or b) pass through
Cable is placed in the air circulation oven of 150 ℉ 4-6 hours, to realize solidification in 3-4 hours.
Then technique well-known in the art can be used, braided fabric (the 44 of such as Fig. 1 and 46) is applied to cable
On.
As mentioned previously, electric wire supplier applies the silicone compounds or other of right amount preferably between conductor strand
Packing material, this is enough to seal the leakage path between conductor strand.Alternatively, Fig. 2 to type shown in fig. 6 bringing device or
Any other bringing device known in the art may be used to close the leakage path between the conductor of electric wire.
Fig. 7 is shown for making the explanation of the process of gas dam cable in one embodiment of the invention, wherein 120 show and make
Insulated electric conductor (all 12 as shown in figure 1) stranding.After making insulated electric conductor stranding, or in its progress stranding of face, use
Packing material (such as silicone compounds) are applied to clearance space (Fig. 1 by one or more of bringing device of Fig. 2 to Fig. 6
In 15), as indicated by appended drawing reference 122.As indicated by 124, then apply insulating materials (18 in Fig. 1) (such as with
The Kapton Tape of liquid polyimides external coating) to form electric wire (20a and 20b of Fig. 1).As indicated by 126, next
Stranding is carried out to electric wire (20a, 20b of Fig. 1 and 22) and any filler (24 of Fig. 1).Then at 128, Fig. 2 to Fig. 6 is used
One or more of bringing device packing material (such as silicone compounds) is applied between twisted conductor and filler
Space (38).Then apply fender (36 in Fig. 1) (such as aluminium wheat draws adhesive tape) at 130.As indicated by 132, with one layer
Packing material (such as silicone compounds) coats fender.Next, squeezing FEP (fluorination second on fender at 134
Allyl alkene) sheath (42 in Fig. 1).Finally, applying braided fabric (44 in Fig. 1 and 46) to cable as shown in 136.
Above-mentioned multiconductor cable can stop gas/fluid to pass through the clearance space in multiconductor cable, in turbine
Prevent high pressure gas from passing through in power generation applications.
The cable for describing and constructing in the above described manner can pass through fluid (oil) under the high pressure of 435psi (about 3000kPa)
Leak-testing, and about 200 DEG C of temperature can be withstood up to and still remain flexible.
The newest variation that 1277 shock-testing of UL requires requires two outsides that gas dam cable is removed during shock-testing
Braided fabric.In order to meet new demand, for the cable for disclosing and being described below in fig. 8, following steps are had taken up
To reduce the impact to multiple insulated electric conductors in cable.
One embodiment of the gas dam cable for meeting the requirement of UL 1227 of the invention is substantially as shown in 210 in Fig. 8.It is shown
Embodiment include multiple insulated electric conductors 212.Only as an example, conductor can be 14AWG, 19 strands of silver-coated copper wires.Insulated electric conductor
It may include that can use the strand clearance space or region 215 that silicone compounds are filled.Insulating materials 218 can be circumferentially around leading
Body 212.Only as an example, insulating materials 218 can be spirally-wound Kapton Tape, the liquid with heat cure
Polyimides external coating.Conductor 212 and insulating materials 218 form individual electric wire 220A and 220B.
Electric wire 220A, the 220B being made of insulated electric conductor 212 can be stranded in one with drainage thread 222 and optional filler 224
It rises, makes cable that there is circular contour.Only as an example, drainage thread 222 is 16AWG tinned wird.Optional filler 224 can be height
Warm filler, and can be preferred that glass fibre or extruded silicone or FEP monofilament.
Drainage thread 222 can be separated by the first fender 234 with twisted conductor 220A, 220B and high temperature filler 224.The
One fender 234 is circumferentially around twisted conductor 220A, 220B and high temperature filler 224.First fender 234, which can be, has height
The spiral wound polyester tape of (66% or higher) Duplication.Twisted conductor 220A, 220B, high temperature filler 224 and first are anti-
The first fender clearance space or region 240 between shield object 234 can be filled with silicone compounds.
Then twisted conductor 220A, 220B, drainage thread 222 and high temperature filler component can be wound with the second fender 236
224 so that its by circumferentially around.Only as an example, the second fender 236 can be aluminium/polyester tape or aluminium/wheat draws adhesive tape.
The second fender clearance space or region 238 between first fender 234 and the second fender 236 can use silicone compounds
Filling.
Sheath 242 can be extruded on fender 236, and only squeeze FEP (ethylene fluoride as an example, can be
Propylene).Only as an example, the nominal diameter of restrictive coating 242 can be 0.212 inch.
Gas dam cable 210 can also include high-temperature glass fibre braided fabric, preferably covering sheath 242, while stainless
Steel braided fabric can preferably cover glass fibrous braid.It, can be on stainless steel braid in some cable constructions
Apply additional extruding FEP sheath.
It should be appreciated that the embodiment of the gas dam cable 210 of Fig. 8 is only an example, and cable of the invention can be with
Many alternative configurations are configured to many alternative materials and any number of conductor, electric wire, drainage thread and/or filler.
A variety of packing material compounds can be used for filling gap and other spaces in gas dam cable 210 in the above described manner
Or region 215,238,240.Packing material must be inert, nonflammable and be able to bear and be suitable for operating up at least big
About 200 DEG C of temperature.Bicomponent normal temperature curable silicone compound is preferably used.Although preferably using such silicone compound
Object, but can alternatively use other the suitable compounds of this field.The example of suitable silicone compounds includes but unlimited
In the following terms:
A. the single-component thermosetting silicone TSE-322 produced by Momentive company.
B. bi-component silicone CST-2127.This is a kind of room temperature curing bi-component silicone compound, can be from the Maine State than Defo moral
Cri-Sil silicone technology Co., Ltd buy.
C. bi-component silicone CST-2327.This is the modified version of CST 2127 and is for example in the embodiment of Fig. 8
It is preferred that silicone compounds, and can also be bought from the Maine State than the Cri-Sil silicone technology Co., Ltd of Defo moral.
Bringing device shown in Fig. 2 to Fig. 6 can be used together with gas dam cable 210, compound be introduced different
In space between insulated electric conductor and electric wire, because aluminium/wheat during cabling process or must drawn adhesive tape just by it
Apply in separate processes before being placed on cable.Packing material can be in stranded conductor 212 and/or electric wire 220A, 220B
Before or after apply.Can configuration based on cable 210 and desired use multiple bringing devices are used continuously as needed
Produce gas dam cable 210.
Fig. 7 is shown for making the explanation of the process of gas dam cable 210 shown in Fig. 8 in one embodiment of the invention,
Wherein step 120, which is shown, carries out stranding to insulated electric conductor (212 in such as Fig. 8).To insulated electric conductor 212 carry out stranding it
Afterwards, or face its carry out stranding when, using one or more of bringing device of Fig. 2 to Fig. 6 by packing material (such as
Silicone compounds) clearance space (215 in Fig. 8) are applied to, as indicated at 122.As indicated at 124, then apply
Add insulating materials (218 in Fig. 8) (Kapton Tape such as with liquid polyimides external coating) to form electric wire (figure
220a and 220b in 8).As indicated at 126, next to electric wire (220a, 220b and drainage thread 222 in Fig. 8) and
Any filler (224 in Fig. 8) carries out stranding.Drainage thread 222 can be by having the spiral of high (66% or higher) Duplication
Shape winding polyester tape (the first fender 234 in Fig. 8) is separated with twisted conductor 220A, 220B and high temperature filler 224.Then
Packing material (such as silicone compounds) is applied to strand using one or more of the bringing device of Fig. 2 to Fig. 6 at 128
Close the space (238 in Fig. 8 and 240) between electric wire and filler.Then at 130, apply the second fender (in Fig. 8
236) (such as aluminium wheat draws adhesive tape).As indicated by 132, fender is coated with one layer of packing material (such as silicone compounds).It connects
Get off, at 134, FEP (fluorinated ethylene propylene) sheath can be squeezed on fender.Finally, as shown in 136, Ke Yixiang
Cable applies braided fabric.
Above-mentioned more conductor gas dam cables 210 can stop gas/fluid pass through multiconductor cable in clearance space, with
Prevent high pressure gas from passing through in turbine and power generation applications.
The gas dam cable 210 for describing and constructing in the above described manner can pass through under the high pressure of 435psi (about 3000kPa)
Fluid (oil) leak-testing, and about 200 DEG C of temperature can be withstood up to and still remain flexible.
It while the preferred embodiments of the invention have been shown and described, but it will be apparent to one skilled in the art that can
To make a change and modify wherein without departing from the spirit of the invention, the scope of the present invention is by appended claims
Book limits.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (20)
1. a kind of gas dam cable, comprising:
More electric wires, every electric wire include:
Multiple conductors have the first space in-between；
Insulating materials, circumferentially around the multiple conductor；And
Conductive fill material, in first space between the multiple conductor；
Drainage thread is twisted together with the more electric wires, wherein the first fender is by the drainage thread and the more electricity
Line separates, to form second space between first fender and the more electric wires；
Second fender, circumferentially around the more electric wires and the drainage thread so that be formed in first fender with
With the cable in third space between second fender；
Electric wire packing material, the institute between the second space and first fender and second fender
It states in third space；And
Sheath, is extruded and circumferentially around second fender,
Wherein each of the Conductive fill material and the electric wire packing material are inert, nonflammable and can
At least about 200 DEG C of temperature is born, and further wherein the gas dam cable stops high pressure gas or high-pressure fluid to pass through
First space, the second space and the third space are to prevent the high pressure gas or the high-pressure fluid from passing through.
2. gas dam cable according to claim 1 further includes the high-temperature glass fibre braided fabric circumferentially around the sheath.
3. gas dam cable according to claim 1, wherein first fender is spirally-wound polyester tape.
4. gas dam cable according to claim 1, wherein second fender is aluminium and polyester tape.
5. gas dam cable according to claim 1, wherein the more electric wires are twisted.
6. gas dam cable according to claim 5 further includes the high temperature filler component being twisted together with the more electric wires.
7. gas dam cable according to claim 6, wherein first fender is circumferentially around the more electric wires and institute
State high temperature filler component.
8. gas dam cable according to claim 1, wherein the electric wire packing material is silicone compounds.
9. gas dam cable according to claim 1, wherein the Conductive fill material is silicone compounds.
10. gas dam cable according to claim 1, wherein the high pressure gas or the high-pressure fluid are up to 435psi
(or about 3,000kPa).
11. gas dam cable according to claim 1, wherein height of the gas dam cable in (or about 3,000kPa) 435psi
Pressure is able to bear and is up to about 200 DEG C of temperature by fluid leak-testing.
12. a kind of gas dam cable, comprising:
More twisted electric wires, every electric wire include:
Multiple conductors have the first space in-between；
Insulating materials, circumferentially around the multiple conductor；And
Conductive fill material, in first space between the multiple conductor；
High-temperature glass fibre filler component is twisted together with the more electric wires；
Drainage thread is twisted together with the more electric wires, wherein the first fender is circumferentially around the more electric wires and institute
High temperature filler component is stated, and the drainage thread and the more electric wires and the high temperature filler component are separated, thus in institute
It states and forms second space between the first fender and the more electric wires；
Second fender, circumferentially around the more electric wires, the high temperature filler component and the drainage thread, so that being formed in
With the cable in third space between first fender and second fender；
Electric wire packing material, the institute between first fender, the more electric wires and the high temperature filler component
It states in second space, and further wherein the electric wire packing material is located in first fender and second protection
In the third space between object；And
Sheath, is extruded and circumferentially around second fender,
Wherein each of the Conductive fill material and the electric wire packing material are inert, nonflammable and can
At least about 200 DEG C of temperature is born, and further wherein the gas dam cable stops high pressure gas or high-pressure fluid to pass through
First space, the second space and the third space are to prevent the high pressure gas or the high-pressure fluid from passing through.
13. gas dam cable according to claim 12 further includes the high-temperature glass fibre braiding circumferentially around the sheath
Object.
14. gas dam cable according to claim 12, wherein first fender is the polyester tape of spiral winding.
15. gas dam cable according to claim 12, wherein second fender is aluminium and polyester tape.
16. gas dam cable according to claim 12, wherein the electric wire packing material and the Conductive fill material are
Different materials.
17. gas dam cable according to claim 12, wherein the electric wire packing material is silicone compounds.
18. gas dam cable according to claim 12, wherein the Conductive fill material is silicone compounds.
19. gas dam cable according to claim 12, wherein the high pressure gas or the high-pressure fluid are up to 435psi
(or about 3,000kPa).
20. gas dam cable according to claim 12, wherein the gas dam cable is 435psi's (or about 3,000kPa)
By fluid leak-testing under high pressure, and it is able to bear and is up to about 200 DEG C of temperature.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/905,356 | 2018-02-26 | ||
| US15/905,356 US10354780B2 (en) | 2011-10-14 | 2018-02-26 | Gas blocking cable and method of manufacturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110197746A true CN110197746A (en) | 2019-09-03 |
Family
ID=67751712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910138650.5A Pending CN110197746A (en) | 2018-02-26 | 2019-02-25 | Gas dam cable and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110197746A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6486395B1 (en) * | 2000-06-22 | 2002-11-26 | Alflex Corporation | Interlocked metal-clad cable |
| US9837187B2 (en) * | 2011-10-14 | 2017-12-05 | Te Wire & Cable Llc | Gas blocking cable and method of manufacturing |
-
2019
- 2019-02-25 CN CN201910138650.5A patent/CN110197746A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6486395B1 (en) * | 2000-06-22 | 2002-11-26 | Alflex Corporation | Interlocked metal-clad cable |
| US9837187B2 (en) * | 2011-10-14 | 2017-12-05 | Te Wire & Cable Llc | Gas blocking cable and method of manufacturing |
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