CN207458278U - A kind of hot spot detection system and its cable linear temperature sensing cable - Google Patents
A kind of hot spot detection system and its cable linear temperature sensing cable Download PDFInfo
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- CN207458278U CN207458278U CN201721139862.8U CN201721139862U CN207458278U CN 207458278 U CN207458278 U CN 207458278U CN 201721139862 U CN201721139862 U CN 201721139862U CN 207458278 U CN207458278 U CN 207458278U
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- cable
- temperature sensing
- linear temperature
- hot spot
- detection system
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Abstract
The utility model discloses a kind of cable linear temperature sensing cable, wherein, including outer protective sleeve, and the outer protective sleeve is polytetrafluoroethylene (PTFE) set.Polytetrafluoroethylene (PTFE) fusing point is 327 DEG C, with good chemical stability, corrosion resistance, electrical insulating property, heatproof excellent (can+250 DEG C~180 DEG C of temperature long-term work), with good ageing resistance.Therefore, the cable linear temperature sensing cable with polytetrafluoroethylene (PTFE) can steadily in the long term be run under the adverse circumstances such as humidity, burn into high temperature.In addition, the invention also discloses a kind of hot spot detection systems with above-mentioned cable linear temperature sensing cable.
Description
Technical field
The utility model is related to transformer technology fields, specifically, are related to a kind of hot spot detection system and its cable formula line
Type temperature sensing cable.
Background technology
In practice, the environment residing for some transformers is more severe, and transformer is in open-air atmosphere, on transformer
The cable linear temperature sensing cable of setting is influenced for a long time by this environment.The oversheath of existing cable linear temperature sensing cable is usually
PVC material, this causes the temperature sensing cable loss of properties on aging that oversheath is PVC material, and service life is short, and it is existing decortication easily occur
As influencing reliability, the sensitivity of detection, there is the risk that water injection system is caused to spray by mistake.
Therefore, how a kind of cable linear temperature sensing cable is provided, is people in the art to reduce the problem of aging is peeled
The current technical issues that need to address of member.
Utility model content
In view of this, the utility model provides a kind of cable linear temperature sensing cable, to reduce the problem of aging is peeled.This
Utility model additionally provides a kind of hot spot detection system with above-mentioned cable linear temperature sensing cable.
To achieve the above object, the utility model provides following technical solution：
A kind of cable linear temperature sensing cable, including outer protective sleeve, the outer protective sleeve is polytetrafluoroethylene (PTFE) set.
Preferably, in above-mentioned cable linear temperature sensing cable, the hot point inspection including being used to obtain transformer temperature signal
Device, the temperature controller being connected with the hotspot detector signal and the warning device being connected with the temperature controller signal.
Preferably, in above-mentioned cable linear temperature sensing cable, the hotspot detector by magnet be fitted in transformer and
On conservator shell.
Preferably, in above-mentioned cable linear temperature sensing cable, the temperature controller is used to be mounted in collecting unit case.
A kind of hot spot detection system of nuclear power station, wherein, including cable linear temperature sensing cable such as described in any one of the above embodiments.
Preferably, in above-mentioned hot spot detection system, the cable linear temperature sensing cable is visited for cable linear temperature sensing fire
Survey device.
Preferably, in above-mentioned hot spot detection system, compensating wire and protection junction box are further included.
It can be seen via above technical scheme that the utility model discloses a kind of cable linear temperature sensing cable, wherein, including
Outer protective sleeve, and the outer protective sleeve is polytetrafluoroethylene (PTFE) set.Polytetrafluoroethylene (PTFE) fusing point is 327 DEG C, has good chemical stabilization
Property, corrosion resistance, electrical insulating property, heatproof excellent (can+250 DEG C~180 DEG C of temperature long-term work), have it is good anti-ageing
The property changed.Therefore, the cable linear temperature sensing cable with polytetrafluoroethylene (PTFE) can be grown under the adverse circumstances such as humidity, burn into high temperature
Phase stable operation.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structure diagram for the hot spot detection system that the utility model embodiment provides.
Specific embodiment
The core of the utility model is to provide a kind of cable linear temperature sensing cable, to reduce the problem of aging is peeled.This reality
It is to provide a kind of hot spot detection system with above-mentioned cable linear temperature sensing cable with new another core.
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
As shown in Figure 1, the utility model discloses a kind of cable linear temperature sensing cable, wherein, including outer protective sleeve, and should
Outer protective sleeve is polytetrafluoroethylene (PTFE) set.Polytetrafluoroethylene (PTFE) fusing point is 327 DEG C, has good chemical stability, corrosion resistance, electricity
Insulating properties, heatproof excellent (can+250 DEG C~180 DEG C of temperature long-term work) have good ageing resistance.Therefore, have
The cable linear temperature sensing cable of polytetrafluoroethylene (PTFE) can steadily in the long term be run under the adverse circumstances such as humidity, burn into high temperature.
The specific cable linear temperature sensing cable includes hotspot detector, temperature controller 2 and warning device.Wherein, on
The hotspot detector stated is for obtaining transformer temperature signal, to be shown to the real-time monitoring of transformer hot face temperature value,
Monitor database is formed, is conducive to equipment management；The utility model can independently become a set of hot spot detection system, be visited for fire
It surveys.Above-mentioned temperature controller 2 is used to receive the temperature signal of hotspot detector acquisition, and when temperature signal reaches preset value
Temperature controller 2 controls warning device to send alarm.
Directly hotspot detector is fitted on transformer and conservator shell by the magnet 1 with reeded strength,
The temperature monitoring comprehensive to transformer is realized in position to transformer body around three circles, conservator around 3~5 circles up and down.It can connect
Continuous, non-blind area monitoring transformer maximum temperature and temperature rise rate, reliably issue warning signal in time.
In collecting unit case 3 of the temperature controller 2 loaded on scene.Alarming value, output alarm dry contact can be set at the scene
Signal accesses existing automatic fire alarm system.Signal collecting device, that is, collecting unit case 3 (HSD-T module cages) uses wall
Hanging installation is installed on the metope beside transformer.
In addition, disclosed herein as well is a kind of hot spot detection system of nuclear power station, including public in such as above-described embodiment
The cable linear temperature sensing cable opened.Therefore, the hot spot detection system with the cable linear temperature sensing cable is also with above-mentioned all
Technique effect.
In the embodiment having, the cable linear temperature sensing cable in the application is cable linear temperature sensing fire detector, is had
Body, HSD-T-F cable linear temperature sensing fire detectors is selected to substitute the cable linear temperature sensing cable set on transformer.Alarm
Setting value is consistent with former temperature sensing cable alarm setting value.HSD-T-F cable linear temperature sensing fire detectors use and thermocouple
Identical operation principle.Based on pyroelectric effect principle, continuously generate with its length in one's power in the range of maximum temperature it is corresponding
Millivolt signal.When the temperature of any point (T1) on detector is higher than the temperature of other parts, thermocouple wire at this it
Between insulation resistance (R) reduce, cause occur " interim " hot junction, act on it is identical with the hot junction of common point type thermocouple,
When in addition some the temperature of (T2) is higher than T1 points on cable, the insulation resistance between thermocouple wire at this can be less than T1 points
Resistance, cause new " interim " hot junction occur.And so on, the continuous thermocouple signal of line style always with detector along most
High-temperature is corresponding.
Every transformer is monitored as 1 monitoring region using a set of HSD-T-F cable linear temperature sensing fire detectors.
Often cover cable linear temperature sensing fire detector (containing hygrosensor), length 100m, altogether using 2 sets.
Hot spot detection system is by groups such as HSD-T-F cable linear temperature sensing fire detectors, compensating wire, protection junction boxes
Into.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (6)
1. a kind of cable linear temperature sensing cable, which is characterized in that including outer protective sleeve, the outer protective sleeve is polytetrafluoroethylene (PTFE)
Set；
It further includes to obtain the hotspot detector of transformer temperature signal, the temperature control being connected with the hotspot detector signal
Device (2) processed and the warning device being connected with the temperature controller signal.
2. cable linear temperature sensing cable according to claim 1, which is characterized in that the hotspot detector passes through magnet
(1) it is fitted on transformer and conservator shell.
3. cable linear temperature sensing cable according to claim 1, which is characterized in that the temperature controller (2) is used to pacify
In collecting unit case (3).
4. a kind of hot spot detection system of nuclear power station, which is characterized in that including such as claim 1-3 any one of them cable formula line
Type temperature sensing cable.
5. hot spot detection system according to claim 4, which is characterized in that the cable linear temperature sensing cable is cable formula line
Sensing fire detector.
6. hot spot detection system according to claim 4, which is characterized in that further include compensating wire and protection junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721139862.8U CN207458278U (en) | 2017-09-06 | 2017-09-06 | A kind of hot spot detection system and its cable linear temperature sensing cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721139862.8U CN207458278U (en) | 2017-09-06 | 2017-09-06 | A kind of hot spot detection system and its cable linear temperature sensing cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207458278U true CN207458278U (en) | 2018-06-05 |
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| CN201721139862.8U Active CN207458278U (en) | 2017-09-06 | 2017-09-06 | A kind of hot spot detection system and its cable linear temperature sensing cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235647A (en) * | 2021-04-01 | 2022-10-25 | 中核核电运行管理有限公司 | Temperature measurement method for outer body of nuclear power station transformer |
-
2017
- 2017-09-06 CN CN201721139862.8U patent/CN207458278U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235647A (en) * | 2021-04-01 | 2022-10-25 | 中核核电运行管理有限公司 | Temperature measurement method for outer body of nuclear power station transformer |
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