CN2927269Y - Liquid-vapour thermostatic cable with fireproof and nuclear-radiation-resisting functions - Google Patents
Liquid-vapour thermostatic cable with fireproof and nuclear-radiation-resisting functions Download PDFInfo
- Publication number
- CN2927269Y CN2927269Y CN 200620071147 CN200620071147U CN2927269Y CN 2927269 Y CN2927269 Y CN 2927269Y CN 200620071147 CN200620071147 CN 200620071147 CN 200620071147 U CN200620071147 U CN 200620071147U CN 2927269 Y CN2927269 Y CN 2927269Y
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- pipe
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Abstract
The utility model discloses a liquid and gas constant temperature fire nuclear radiation proof cable, belonging to a technology field of cable material, which comprises a conductor inside the copper core, an insulating layer and a protecting pipe, the insulating layer outside the conductor inside the copper core is a stainless steel corrugated metal pipe, the stainless steel corrugated metal pipe is armored outside with stainless steel belt and then armored with a layer of nitrogen-filled metal tube; the stainless steel corrugated metal pipe, the stainless steel belt and the nitrogen-filled metal tube are isolated by the inner liner, the nitrogen-filled metal tube is communicated with the nitrogen production instrument and the controlling system of the nitrogen production instrument through the liquid nitrogen tank of the cable terminal, the nitrogen-filled metal tube is also provided with a radiation proof protective layer, the length of the cable is increased needless intermediate joint; the security is very high, the sectional area of the cable can be designed to be very large, more particularly four cores fire cables above 50mm<2> can be produced; the production cost is very low, the bending radius of the cable is very large, the construction is convenient; and the cable is armored outside with the nitrogen-filled metal tube, the exorbitant temperature of the cable can be cooled by the hydronitrogen, and the cable can be controlled under the safe temperature, ensuring the security of the cable, and improving the period of usage.
Description
Technical field
This is practical to relate to a kind of cable, belongs to the CABLE MATERIALS technical field, refers in particular to the anti-nuclear radiation cable of a kind of liquid gas constant temperature fire prevention.
Background technology
The outer pillar of the conductor of fireproof cable adopts copper pipe at present, and cable conductor is big, and copper pipe also will increase, the restriction that produced by copper pipe, and commercially available fireproof cable especially multicore is counted fireproof cable, and its sectional area ratio is less, 50mm
2Above heavy in section multicore fireproof cable can't be produced, and copper pipe sheath flexibility is poor in addition, almost can't be crooked, and the inconvenience construction, its cable cost is higher; The single core mineral insulated cable in heavy in section on the market, the copper pipe sheath can only prolong with stretching mode, and its fertile distance is shorter, the longest generally about 100 meters, need multistage to connect, if long distance connects, the transition joint that needs is many, easily water inlet, and security of products can be poor.Itself does not have the temperature adjusting facility present fireproof cable, and too high or be subjected to the influence of external high temperature when the cable self-temperature, its heat can't in time discharge, and cable assembly particularly insulating barrier subjects to destroy, and the cable blast can take place when serious.
Summary of the invention
The utility model is just in order to overcome above-mentioned deficiency; provide a kind of sectional area big; design rice number can need not transition joint according to customer need surely and connect; security performance is good and have flexibility and easily construct; can in time take away the anti-nuclear radiation cable of liquid gas constant temperature fire prevention of cable heat; main innovation is that the outer insulating barrier of copper in-core conductor is ceramic magnesium oxide; the outer protecting pipe of insulating barrier adopts stainless steel ripple steel pipe; simultaneously fill the nitrogen metal tube at the armoured one deck of cable; fill in the gap of nitrogen metal tube and be equipped with high temperature resistant packing; under high-temperature condition, discharge the heat of taking away cable and reach the constant temperature purpose by filling nitrogen in the nitrogen metal tube; specifically implement like this: the anti-nuclear radiation cable of liquid gas constant temperature fire prevention; comprise copper in-core conductor; insulating barrier; protecting pipe; it is characterized in that the outer insulating barrier of copper in-core conductor is ceramic magnesium oxide insulating barrier; the outer protecting pipe of insulating barrier is a stainless steel ripple steel pipe; behind the armoured wrapped stainless steel band of stainless steel ripple steel pipe again armouring one deck fill the nitrogen metal tube; stainless steel ripple steel pipe; stainless steel band; fill between the nitrogen metal tube and isolate with inner covering; the described nitrogen metal tube that fills is connected system nitrogen instrument and control system thereof by the liquid nitrogen container of cable termination, fills the nitrogen metal tube and is provided with the radiation proof protective layer outward in addition.This stainless steel ripple steel pipe adopts the argon arc welding, does not need annealing in the production process, little power consumption, production cycle is fast, need not extruding, small investment, the place is few, and with the protecting pipe of its mineral wool cable, the protecting pipe sectional area can enlarge, can produce heavy in section fireproof cable, in addition, cable bending radius in construction is bigger, made things convenient for construction, and can determine length as required, need not to connect that security performance is guaranteed with transition joint.When cable itself produces heat or cable surface and is subjected to temperatures involved, when if cable temperature surpasses set point, automatically operate by control system, nitrogen is poured the cooling that circulates in the metal tube, thereby guarantee the good temperature constant state of cable, the utility model is to select the diameter of cooling copper tube and use radical according to the size of the cross-section of cable.
Radiation proof protective layer of the present utility model is high-strength fire-retardant mica tape, stainless steel wire braiding armour, radiation proof sheath dress sheath from the inside to the outside successively.
Cable of the present utility model can be single core fireproof cable, also can the multicore fireproof cable, and outsourcing inner covering behind the stranded stranding of the multicore of multicore fireproof cable, the cable body is with the high temperature resistant inserts filling of low smoke, zero halogen, and inner covering external application stainless steel band armouring is wrapped.
Filling the nitrogen metal tube in the utility model preferably is seamless copper pipe, also can be steel pipe, compo pipe etc.
The utility model adopts argon arc welding stainless steel wave line steel pipe to make the protecting pipe of copper in-core conductor, can increase cable length and need not use transition joint, and security performance height, the cross-section of cable amass and can design greatlyyer, particularly can produce 4 core 50mm
2Above fireproof cable, production cost is low, and Cable Bending Radius is bigger, easy construction, and, can cool off the too high temperature of cable by nitrogen at the armoured nitrogen metal tube that fills of cable, cable is in the safe temperature all the time, has guaranteed the fail safe of cable, be improved its useful life.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the cross section structure schematic diagram of the utility model embodiment 2.
Embodiment
Embodiment 1; the anti-nuclear radiation cable of single core liquid gas constant temperature fire prevention; copper in-core conductor 1 outer insulating barrier 2 is ceramic magnesium oxide insulating barriers; insulating barrier 2 outer protecting pipes 3 are stainless steel ripple steel pipes; behind the stainless steel ripple steel pipe 3 armoured wrapped stainless steel bands 5 again armouring one deck fill nitrogen metal tube 7; stainless steel ripple steel pipe 3; 5 of stainless steel bands are isolated with inner covering 4; stainless steel band 5; fill between the nitrogen metal tube and isolate with inner covering 6; the described nitrogen metal copper pipe 7 that fills is connected system nitrogen instrument and control system thereof by the liquid nitrogen container of cable termination, fills the nitrogen metal copper pipe 7 outer high-strength fire-retardant mica tapes 8 that also are provided with successively; stainless steel wire braiding armouring protective layer 9 and radiation proof sheath dress sheath 10.
Embodiment 2; the anti-nuclear radiation cable of multicore liquid gas constant temperature fire prevention; copper in-core conductor 1 outer insulating barrier 2 is ceramic magnesium oxide insulating barriers; insulating barrier 2 outer protecting pipes 3 are stainless steel ripple steel pipes; outsourcing high-temperature resistant inner lining layer 4 behind the stranded stranding of multicore; the cable body is with high temperature resistant inserts 11 fillings of low smoke, zero halogen; after inner covering 4 external application stainless steel bands 5 armourings are wrapped again armouring one deck fill nitrogen steel pipe 7; stainless steel band 5 and fill 7 of nitrogen steel pipes and isolate with inner covering 6; the described nitrogen steel pipe 7 that fills is connected system nitrogen instrument and control system thereof by the liquid nitrogen container of cable termination, fills the nitrogen steel pipe 7 outer high-strength fire-retardant mica tapes 8 that also are provided with successively; stainless steel wire braiding armouring protective layer 9 and radiation proof sheath dress sheath 10.
Claims (5)
1. the nuclear radiation cable is prevented in the liquid gas constant temperature fire prevention; comprise copper in-core conductor, insulating barrier, protecting pipe; it is characterized in that the outer insulating barrier of copper in-core conductor is ceramic magnesium oxide insulating barrier; the outer protecting pipe of insulating barrier is a stainless steel ripple steel pipe; behind the armoured wrapped stainless steel band of stainless steel ripple steel pipe again armouring one deck fill the nitrogen metal tube; stainless steel ripple steel pipe, stainless steel band, fill between the nitrogen metal tube and isolate with inner covering; the described nitrogen metal tube that fills is connected system nitrogen instrument and control system thereof by the liquid nitrogen container of cable termination, fills the nitrogen metal tube and is provided with the radiation proof protective layer outward in addition.
2. the anti-nuclear radiation cable of liquid gas constant temperature fire prevention according to claim 1 is characterized in that the radiation proof protective layer is high-strength fire-retardant mica tape, stainless steel wire braiding armour, radiation proof sheath dress sheath from the inside to the outside successively.
3. the anti-nuclear radiation cable of liquid gas constant temperature fire prevention according to claim 1 is characterized in that cable is single core fireproof cable or multicore fireproof cable.
4. the anti-nuclear radiation cable of liquid gas constant temperature according to claim 3 fire prevention is characterized in that outsourcing inner covering behind the stranded stranding of multicore of multicore fireproof cable, and the cable body is with the high temperature resistant inserts filling of low smoke, zero halogen, and inner covering external application stainless steel band armouring is wrapped.
5. the anti-nuclear radiation cable of liquid gas constant temperature fire prevention according to claim 1, it is characterized in that filling the nitrogen metal tube is seamless copper pipe or steel pipe or compo pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620071147 CN2927269Y (en) | 2006-05-01 | 2006-05-01 | Liquid-vapour thermostatic cable with fireproof and nuclear-radiation-resisting functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620071147 CN2927269Y (en) | 2006-05-01 | 2006-05-01 | Liquid-vapour thermostatic cable with fireproof and nuclear-radiation-resisting functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2927269Y true CN2927269Y (en) | 2007-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620071147 Expired - Lifetime CN2927269Y (en) | 2006-05-01 | 2006-05-01 | Liquid-vapour thermostatic cable with fireproof and nuclear-radiation-resisting functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2927269Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853712A (en) * | 2010-04-21 | 2010-10-06 | 北京倚天凌云云母科技有限公司 | Composite steel strip for nuclear cables and manufacture method thereof |
| CN105469878A (en) * | 2015-12-18 | 2016-04-06 | 王根顺 | Anti-nuclear-radiation cable |
| CN109599205A (en) * | 2018-11-09 | 2019-04-09 | 安徽凌宇电缆科技有限公司 | A kind of intelligence engineering equipment uses optoelectronic composite cable |
-
2006
- 2006-05-01 CN CN 200620071147 patent/CN2927269Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853712A (en) * | 2010-04-21 | 2010-10-06 | 北京倚天凌云云母科技有限公司 | Composite steel strip for nuclear cables and manufacture method thereof |
| CN105469878A (en) * | 2015-12-18 | 2016-04-06 | 王根顺 | Anti-nuclear-radiation cable |
| CN109599205A (en) * | 2018-11-09 | 2019-04-09 | 安徽凌宇电缆科技有限公司 | A kind of intelligence engineering equipment uses optoelectronic composite cable |
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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: 20070725 |
|
| EXPY | Termination of patent right or utility model |