CN201069602Y - Line temperature sensing fire detector based on resettable analog - Google Patents
Line temperature sensing fire detector based on resettable analog Download PDFInfo
- Publication number
- CN201069602Y CN201069602Y CNU2007200144018U CN200720014401U CN201069602Y CN 201069602 Y CN201069602 Y CN 201069602Y CN U2007200144018 U CNU2007200144018 U CN U2007200144018U CN 200720014401 U CN200720014401 U CN 200720014401U CN 201069602 Y CN201069602 Y CN 201069602Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- temperature sensing
- utility
- type heat
- model
- 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 - Fee Related
Links
Images
Landscapes
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The utility model discloses a detector, in particular relating to a line type heat fire detector capable of resetting measuring temperature in simulation, which comprises a signal decoder, a terminal processor and a temperature sensing cable connected between the signal decoder and the terminal processor; wherein, the temperature sensing cable has the structures as below: two metal conductors (4) are arranged in an internal lead (3), which is connected with temperature sense organs (2) in parallel and in sequence at the middle; the temperature sense organ (2) is composed of a micro temperature switch and a thermistor. The utility model can send the first alarm signals and measure the in-situ temperature at the same time; the temperature sensing cable can be used in series, and the unit cable can reach thousands meters as the longest using distance; therefore, the utility model lowers the use cost and largely facilitates the engineering utilization at the same time, as well as reduces the equipment maintenance load during system operation.
Description
Technical field
The utility model relates to a kind of detector, particularly relates to a kind of analog quantity temperature measuring type line-type heat detector that resets.
Background technology
The visible in the market analog linear temperature-sensing fire detecting device that resets can only be used for temperature anomaly warning usefulness, has only known temperature over-range after the warning, but actual temp is how much not know.In addition, it uses length limited traditional analogue detector, is generally about 200 meters, for the field of employment of long distance, as large-sized cable tunnel, traffic tunnel etc., then must adopt segmentation independence set-up mode to carry out the temperature detection alarm.And the temperature sensing cable that uses can not be connected in series use, so promptly improved application cost, increased the operating plant maintenance amount of system simultaneously again.
The utility model content
The utility model is exactly the resetted analog quantity temperature measuring type line-type heat detector that provides a kind of temperature sensing cable itself can connect and use in order to solve the problems of the technologies described above, and it has solved traditional analogue detector, and it uses the problem of length limited; It can measure its scene temperature simultaneously when providing the alerting signal first time, be very easy to engineering and use.
In order to solve the problems of the technologies described above, the utility model is achieved in that the analog quantity temperature measuring type line-type heat detector that can reset, it comprises decoding signals, terminal handler, is connected in the temperature sensing cable between decoding signals and the terminal handler, wherein the temperature sensing cable structure is as follows: be provided with two metallic conductors in inside conductor, two middle temperature-sensing element (device)s that are being connected in parallel successively of metallic conductors, temperature-sensing element (device) is made up of miniature temperature switch and thermistor.
Described inside conductor is arranged in the oversheath.
Described oversheath is that plastics extrusion molding sheath, braiding structure sheath or plastics extrusion molding are at interior braiding structure sheath outside.
Described two metallic conductors are set in parallel in the inside conductor.
Described adjacent temperature-sensing element (device) equidistantly distributes.
Distance between described adjacent two temperature-sensing element (device)s is 5-100cm.
Advantage of the present utility model and effect are as follows:
The utility model can be measured its scene temperature simultaneously when providing the alerting signal first time, be very easy to engineering and use.Temperature sensing cable in the utility model is because self design feature, and its temperature one change in resistance characteristic is the switching mode step and changes, thereby the temperature sensing cable use of can connecting itself.Temperature sensing cable the longest single service range can reach km, thereby will greatly facilitate the engineering use when reducing use cost, has reduced the operating plant maintenance amount of system.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a circuit structure diagram of the present utility model.
Among the figure, 1, oversheath; 2, temperature-sensing element (device); 3, inside conductor; 4, metallic conductor.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details, but protection domain of the present utility model is not limited by embodiment.
As shown in Figure 1, the utility model Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector mainly is made up of decoding signals, terminal handler, temperature sensing cable three parts that are connected between decoding signals and the terminal handler; Wherein the concrete structure of temperature sensing cable is as follows: be provided with two metallic conductors 4 in inside conductor 3, process for convenience and guarantee and do not connect between two metallic conductors 4, two metallic conductors 4 can be set in parallel in the inside conductor 3, temperature-sensing element (device) 2 successively is being connected in parallel in the middle of two metallic conductors 4, adjacent temperature-sensing element (device) 2 equidistantly distributes, and the distance between two adjacent temperature-sensing element (device)s is 5-100cm.Inside conductor 3 is put at oversheath 1.Oversheath 1 can adopt plastics extrusion molding sheath, braiding structure sheath or plastics extrusion molding at interior braiding structure sheath outside.Temperature-sensing element (device) 2 is made up of miniature temperature switch and thermistor.
Above-mentioned temperature switch has the switching characteristic of design temperature.Under the normal condition, temperature switch is in off-state, presents high-impedance state between temperature sensing cable two metallic conductors.After this place's temperature rose to the low limit value of design temperature, this temperature switch action was linked into thermistor between two metallic conductors, also promptly is equivalent to thermistor and goes the measure field temperature.Promptly know the scene temperature situation by measuring two resistance values between conductor.
The utility model is mainly used in the abnormal temperature detection alarm of cable tunnel, cable testing bridge, traffic tunnel, petrochemical industry pipeline, large-scale petroleum and liquefied gas tank body.Decoding signals is mainly used in the change in resistance signal of measuring temperature sensing cable self and exports corresponding temperature signal after the overvoltage signal conversion, can provide corresponding heat alarm according to setting simultaneously.Temperature sensing cable itself is designed to have tangible temperature one resistance variation characteristic, is used to survey the scene temperature situation of change.When temperature variation is set the alarm temperature lower bound to it, the temperature switch action that connects in it, and thermistor is linked between two metallic conductors of temperature sensing cable, decoding signals can be learnt on-the-spot temperature variations by detecting the resistance variations situation between two conductors.Terminal handler is used for the temperature sensing cable resistance is carried out Signal Matching, and provides that temperature sensing cable opens circuit, the fault detection signal of short circuit.
Claims (6)
1. analog quantity temperature measuring type line-type heat detector can reset, it comprises decoding signals, terminal handler, is connected in the temperature sensing cable between decoding signals and the terminal handler, it is characterized in that the temperature sensing cable structure is as follows: in inside conductor (3), be provided with two metallic conductors (4), the middle temperature-sensing element (device) (2) that is being connected in parallel successively of two metallic conductors (4), temperature-sensing element (device) (2) is made up of miniature temperature switch and thermistor.
2. the analog quantity temperature measuring type line-type heat detector that resets according to claim 1 is characterized in that described inside conductor (3) is arranged in the oversheath (1).
3. the analog quantity temperature measuring type line-type heat detector that resets according to claim 2 is characterized in that described oversheath (1) is that plastics extrusion molding sheath, braiding structure sheath or plastics extrusion molding are at interior braiding structure sheath outside.
4. the analog quantity temperature measuring type line-type heat detector that resets according to claim 1 is characterized in that described two metallic conductors (4) are set in parallel in the inside conductor (3).
5. the analog quantity temperature measuring type line-type heat detector that resets according to claim 1 is characterized in that described adjacent temperature-sensing element (device) (2) equidistantly distributes.
6. the analog quantity temperature measuring type line-type heat detector that can reset according to claim 1 or 5 is characterized in that the distance between described adjacent two temperature-sensing element (device)s (2) is 5-100cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200144018U CN201069602Y (en) | 2007-09-04 | 2007-09-04 | Line temperature sensing fire detector based on resettable analog |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200144018U CN201069602Y (en) | 2007-09-04 | 2007-09-04 | Line temperature sensing fire detector based on resettable analog |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069602Y true CN201069602Y (en) | 2008-06-04 |
Family
ID=39490991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200144018U Expired - Fee Related CN201069602Y (en) | 2007-09-04 | 2007-09-04 | Line temperature sensing fire detector based on resettable analog |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201069602Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940226A (en) * | 2017-05-15 | 2017-07-11 | 上海安誉智能科技有限公司 | Temperature sensor line based on temperature element |
| CN106969850A (en) * | 2017-05-15 | 2017-07-21 | 上海安誉智能科技有限公司 | The temperature sensing cable and its application and method of temperature sensor line based on output PWM ripples |
| CN106969852A (en) * | 2017-05-15 | 2017-07-21 | 上海安誉智能科技有限公司 | Export temperature sensor line circuit structure, system for detecting temperature and its method for PWM ripples |
-
2007
- 2007-09-04 CN CNU2007200144018U patent/CN201069602Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940226A (en) * | 2017-05-15 | 2017-07-11 | 上海安誉智能科技有限公司 | Temperature sensor line based on temperature element |
| CN106969850A (en) * | 2017-05-15 | 2017-07-21 | 上海安誉智能科技有限公司 | The temperature sensing cable and its application and method of temperature sensor line based on output PWM ripples |
| CN106969852A (en) * | 2017-05-15 | 2017-07-21 | 上海安誉智能科技有限公司 | Export temperature sensor line circuit structure, system for detecting temperature and its method for PWM ripples |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202494775U (en) | Calibrator for DC system insulation device | |
| CN110501260B (en) | Gas density relay with online self-checking function and checking method thereof | |
| CN107179141B (en) | Oil-immersed power transformation equipment temperature measuring device with online calibration function and calibration method | |
| AU2012203142A1 (en) | Utility meter with temperature based actuation of a remote disconnect switch | |
| CN201069602Y (en) | Line temperature sensing fire detector based on resettable analog | |
| CN108899180A (en) | A kind of transformer digital monitoring protective device | |
| CN201138504Y (en) | Parallel line type temperature-sensing fire disaster detector with discrete temperature sensing switch serially connected with resistor | |
| CN211718032U (en) | Gas density relay with online self-checking function and monitoring device | |
| CN201653851U (en) | SF6 gas density transmitter and on-line monitoring system applying same | |
| CN202109999U (en) | Digital minisize multi-point temperature change detector | |
| CN201555911U (en) | On-line monitoring device of intelligent arrester | |
| CN103543321A (en) | Polarization-depolarization current detection device for crosslinked polyethylene medium-voltage cable | |
| CN201069601Y (en) | Line temperature sensing fire detector based on resettable switch | |
| CN88210103U (en) | Leakage detector for composite insulation pipeline | |
| CN102346230B (en) | Method and device for online detection of transformer sleeve | |
| CN203376080U (en) | Open circuit detection system of multipath thermocouples | |
| CN204990041U (en) | Case alternating temperature humidity intelligence monitoring device | |
| CN102384796A (en) | Multi-resistor remote temperature measuring device for transformer | |
| CN206361806U (en) | A kind of multi-point temperature measurement control device | |
| CN202257207U (en) | Information acquirer and online monitoring system of electrical connection part | |
| CN204406593U (en) | A kind of composite linear temperature-sensing fire disaster detector | |
| CN201004434Y (en) | Gas density switch using gas compensation | |
| CN101943727B (en) | Online detection device of surge protector | |
| CN201203925Y (en) | Multifunctional liner temperature-sensing detector | |
| CN104574768A (en) | Linear temperature-sensing fire detector and alarm method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20160904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |