CN203561778U - Temperature sensing probe optical fiber - Google Patents
Temperature sensing probe optical fiber Download PDFInfo
- Publication number
- CN203561778U CN203561778U CN201320612709.8U CN201320612709U CN203561778U CN 203561778 U CN203561778 U CN 203561778U CN 201320612709 U CN201320612709 U CN 201320612709U CN 203561778 U CN203561778 U CN 203561778U
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- stainless steel
- optical fiber
- heat conductive
- heat
- protection coating
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Abstract
The utility model relates to a temperature sensing probe optical fiber comprising a naked fiber; the optical fiber is characterized in that the naked fiber is tightly wrapped by a protection coating; the naked fiber with the protection coating penetrates a stainless steel thread soft pipe; a heat conductive soft paste is arranged between the stainless steel thread soft pipe and the protection coating; the stainless steel thread soft pipe is wrapped by a stainless steel braided layer wrapped by a wave-formed heat conductive sheath. Compared with the prior art, the advantages are that the heat conductive soft paste is used to fill the gap between the stainless steel thread soft pipe and the protection coating; fast response of the optical fiber is ensured; the outmost layer is the heat conductive sheath in black wave forms; the black color can absorb more heat radiation; the wave-form structure can improve a contact surface between the temperature sensing cable and hot air, can fast radiate by reducing the thickness of a groove portion and simultaneously ensuring sheath strength, and can help the hot air to flow along the groove, so the hot air and the optical fiber can have longer contact time.
Description
Technical field
The utility model relates to a kind of heat detection optical cable, belongs to temperature sensing, fire monitoring and alarm field.
Background technology
Optical fiber sensing technology is along with optical communication technique synchronized development gets up, Fibre Optical Sensor with its distinctive intrinsic safety, without electricity, structure is little, lightweight, the life-span long, monitoring physical quantity is abundant, highly sensitive and transmission speed is fast etc., and many merits is now concerning the various fields widespread use of national economy.Especially temperature-measuring system of distributed fibers, since being born the 1980s, has become a kind of indispensable product with the advantage of its distributed measurement at aspects such as temperature survey, leak detection and fire fire-fighting monitorings.
Based on the sensitivity of optical fiber sensing technology, normally feeble signal is measured, therefore outstanding optical fibre sensor structure must possess micro-damage transmission that feeble signal is changed.At tunnel fire monitoring field widely used temperature-measuring system of distributed fibers heat detection optical cable, be to adopt circular conventional plastic sheath armored optical cable at present, minority is for the heat conduction ointment that improved the inner filling of temperature conductivity.Because the temperature conductivity of this conventional plastics is very low, increased ambient temperature and changed and be transmitted to the required time of temperature sensing optical cable internal optical fiber, and large high attenuation range of temperature.
Travelling and inside and outside temperature difference of escort vehicle, in tunnel, conventionally there is larger tunnel wind to exist, this can cause in tunnel when vehicle catches fire only having faint heat to reach on the heat detection optical cable of tunnel top, makes traditional temperature-measuring system of distributed fibers detecting optical cable can not meet the response requirement that under higher wind velocity condition, tunnel fire hazard is surveyed
Utility model content
Technical problem to be solved in the utility model is to provide a kind of heat detection optical cable that can be used for tunnel fire hazard under higher wind velocity condition and can respond fast for above-mentioned prior art.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of heat detection optical cable; comprise bare fibre; it is characterized in that: the outer hard-pressed bale one deck protective finish of bare fibre; with the bare fibre of protective finish, be located in stainless steel screwed hose; between stainless steel screwed hose and protective finish, with heat-conductive paste, fill; stainless steel screwed hose is surrounded by stainless steel wire braid outward, and stainless steel wire braid is outward the heat conduction overcoat of ripple struction.
As improvement, described protective finish thickness is 120 μ m.
Described heat conduction overcoat adopts temperature conductivity to be greater than black flame-retardant plastic wrapper or the rubber sleeve of 0.6W/m.k.
Compared with prior art, the utility model has the advantage of: the outer hard-pressed bale protective finish thickening of bare fibre is used physical strength for improving the engineering of bare fibre in screwed hose, between stainless steel screwed hose and protective finish, with heat-conductive paste, fill, can guarantee that optical cable responds fast, outermost layer is the high thermal conductivity overcoat of black ripple struction, black can absorb more radiation heat, adopting wave structure one is the surface of contact that can increase temperature sensing optical cable and hot-air, two can guarantee that the thickness that reduces groove part on the basis of oversheath intensity is to reach quick conductive, the 3rd, contribute to hot-air to flow and make hot-air and optical cable have longer duration of contact along groove, heat conduction lagging material adopts temperature conductivity to be greater than black flame-retardant plastics or the rubber of 0.6W/m.k, guarantee so the quick response of detecting optical cable under higher wind velocity condition.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of heat detection optical cable in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Heat detection optical cable as shown in Figure 1; it comprises bare fibre 1; the thick protective finish 2 of the outer hard-pressed bale one deck 120 μ m of bare fibre 1; with the bare fibre 1 of protective finish 2, be located in stainless steel screwed hose 4; between stainless steel screwed hose 4 and protective finish 2, with heat-conductive paste 3, fill; the outer stainless steel wire braid 5 that is surrounded by of stainless steel screwed hose 4, stainless steel wire braid 5 is outer is the heat conduction overcoat 6 of ripple struction, heat conduction overcoat adopts temperature conductivity to be greater than the black flame-retardant plastic wrapper of 0.6W/m.k.
The heat detection optical cable of said structure is applied to tunnel top under higher wind velocity condition or the similar top of large space, can measures in real time temperature and the fire situation of monitored facility.
Claims (3)
1. a heat detection optical cable; comprise bare fibre; it is characterized in that: the outer hard-pressed bale one deck protective finish of bare fibre; with the bare fibre of protective finish, be located in stainless steel screwed hose; between stainless steel screwed hose and protective finish, with heat-conductive paste, fill; stainless steel screwed hose is surrounded by stainless steel wire braid outward, and stainless steel wire braid is outward the heat conduction overcoat of ripple struction.
2. heat detection optical cable according to claim 1, is characterized in that: described protective finish thickness is 120 μ m.
3. heat detection optical cable according to claim 1, is characterized in that: described heat conduction overcoat adopts temperature conductivity to be greater than black flame-retardant plastic wrapper or the rubber sleeve of 0.6W/m.k.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612709.8U CN203561778U (en) | 2013-09-30 | 2013-09-30 | Temperature sensing probe optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612709.8U CN203561778U (en) | 2013-09-30 | 2013-09-30 | Temperature sensing probe optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561778U true CN203561778U (en) | 2014-04-23 |
Family
ID=50511491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320612709.8U Expired - Lifetime CN203561778U (en) | 2013-09-30 | 2013-09-30 | Temperature sensing probe optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561778U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965275A (en) * | 2015-07-16 | 2015-10-07 | 常州市武进翔宇电子元器件有限公司 | Wearing-resistance home-entrance connected optical cable |
| CN107037551A (en) * | 2017-05-12 | 2017-08-11 | 深圳市特发信息股份有限公司 | Sensing optic cable |
| CN109683267A (en) * | 2019-01-22 | 2019-04-26 | 深圳市特发信息股份有限公司 | Distributed temperature sensing optic cable in Oil/Gas Pipe |
| CN110989117A (en) * | 2019-12-25 | 2020-04-10 | 天津立孚光电科技股份有限公司 | Miniature temperature measuring optical cable |
-
2013
- 2013-09-30 CN CN201320612709.8U patent/CN203561778U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965275A (en) * | 2015-07-16 | 2015-10-07 | 常州市武进翔宇电子元器件有限公司 | Wearing-resistance home-entrance connected optical cable |
| CN107037551A (en) * | 2017-05-12 | 2017-08-11 | 深圳市特发信息股份有限公司 | Sensing optic cable |
| CN109683267A (en) * | 2019-01-22 | 2019-04-26 | 深圳市特发信息股份有限公司 | Distributed temperature sensing optic cable in Oil/Gas Pipe |
| CN110989117A (en) * | 2019-12-25 | 2020-04-10 | 天津立孚光电科技股份有限公司 | Miniature temperature measuring optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170921 Address after: 315403 No. 1, luxuriant Road, Yuyao, Zhejiang Patentee after: Zhejiang Zhendong Photoelectric Technology Co.,Ltd. Address before: 315403 No. 3, flourishing road, Yuyao Economic Development Zone, Zhejiang, China Patentee before: Ningbo Zhendong Optoelectronics Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |