CN201069601Y - Line temperature sensing fire detector based on resettable switch - Google Patents
Line temperature sensing fire detector based on resettable switch Download PDFInfo
- Publication number
- CN201069601Y CN201069601Y CNU2007200144003U CN200720014400U CN201069601Y CN 201069601 Y CN201069601 Y CN 201069601Y CN U2007200144003 U CNU2007200144003 U CN U2007200144003U CN 200720014400 U CN200720014400 U CN 200720014400U CN 201069601 Y CN201069601 Y CN 201069601Y
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- temperature
- temperature sensing
- fire detector
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Abstract
The utility model discloses a detector, in particular relating to a resetting switching value line type heat fire detector, 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) and are connected with temperature sense organs (2) in parallel and in sequence at the middle; the adjacent temperature sense organs (2) are distributed with equal distance. The temperature sensing cable of the utility model can be used both in serial connection and in parallel connection, and 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; besides, the temperature sensing cable of the utility model is more sensitive and nicely on detecting temperature compared with the traditional sensing cables for measuring temperature.
Description
Technical field
The utility model relates to a kind of detector, particularly relates to a kind of Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector.
Background technology
Visible in the market line-type heat detector mainly contains two kinds: a kind of is Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector not, and another kind is the analog linear temperature-sensing fire detecting device that can reset.Traditional switching value detector is in use in case produce the action alerting signal because temperature anomaly raises, then must wipe out this part and be replaced by new, caused a lot of troubles to use like this, when especially this detector is installed on than harsh environment scenarios, changed more inconvenient.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 in parallel, series connection, has so promptly improved application cost, has increased the operating plant maintenance amount of system simultaneously again.
The utility model content
The utility model is exactly that the Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector that a kind of temperature sensing cable itself can be in parallel, series connection is used is provided in order to solve the problems of the technologies described above, it has solved the not re-usable product application problem of traditional switching value detector, and surveys sensitiveer, accurate than conventional switch amount temperature sensing cable to temperature.
In order to solve the problems of the technologies described above, the utility model is achieved in that Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector, 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, adjacent temperature-sensing element (device) equidistantly distributes.
Described temperature-sensing element (device) is made up of miniature temperature switch and resistance.
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.
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 temperature sensing cable is owing to the design feature of self, and its temperature-change in resistance characteristic is the switching mode step and changes, thereby temperature sensing cable itself can in parallel, series connection use.Temperature sensing cable the longest single service range is km, thereby will greatly facilitate the engineering use when reducing application cost, has reduced the operating plant maintenance amount of system.。The utility model has solved the not re-usable product application problem of traditional switching value detector, and the temperature sensing cable in the utility model is compared conventional switch amount temperature sensing cable and temperature surveyed sensitiveer, accurate.
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.
Said temperature sensitive element 2 is made up of miniature temperature switch and resistance.Temperature switch has the switching characteristic of design temperature.Under the normal condition, temperature switch is under the constant resistance state, be the on-off state, after this place's temperature rises to design temperature, this temperature switch action, himself resistance generation step changes, and this variation causes in the temperature sensing cable resistance between two metallic conductors that significant change also takes place, thereby can be used as the temperature anomaly signal and report to the police.
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.When temperature changed and reach alarming value, the resistance generation significant change of temperature-sensing element (device) caused the resistance generation significant change between two conductors, after this change in resistance detects via decoding signals through judging output temperature abnormal alarm signal.
Decoding signals is mainly used in carries out the alerting signal processing for the equipment that is connected the temperature of temperature sensing cable self-change in resistance signal corresponding electric signal of output after the overvoltage signal conversion.Temperature sensing cable itself is designed to have tangible temperature-resistance variation characteristic, is used to survey the scene temperature situation of change; When temperature variation was set alarm temperature to it, the temperature switch action that connects in it also caused self resistance generation significant change, and this variation provides alerting signal after being detected by decoding signals.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. Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector, 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), adjacent temperature-sensing element (device) (2) equidistantly distributes.
2. Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector according to claim 1 is characterized in that described temperature-sensing element (device) (2) is made up of miniature temperature switch and resistance.
3. Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector according to claim 1 is characterized in that described inside conductor (3) is arranged in the oversheath (1).
4. Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector according to claim 3 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.
5. Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector according to claim 1 is characterized in that described two metallic conductors (4) are set in parallel in the inside conductor (3).
6. Reducible Switch Hydrodynamic Form of Quantity Temperature Sensing Fire Detector according to claim 1 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 |
|---|---|---|---|
| CNU2007200144003U CN201069601Y (en) | 2007-09-04 | 2007-09-04 | Line temperature sensing fire detector based on resettable switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200144003U CN201069601Y (en) | 2007-09-04 | 2007-09-04 | Line temperature sensing fire detector based on resettable switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069601Y true CN201069601Y (en) | 2008-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200144003U Expired - Fee Related CN201069601Y (en) | 2007-09-04 | 2007-09-04 | Line temperature sensing fire detector based on resettable switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201069601Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198602A (en) * | 2012-03-06 | 2013-07-10 | 曾学义 | Line type temperature sensing fire detector and alarm method thereof |
| CN111341057A (en) * | 2020-03-11 | 2020-06-26 | 上海辉控电子科技有限公司 | Point type linear temperature-sensing fire detector |
-
2007
- 2007-09-04 CN CNU2007200144003U patent/CN201069601Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198602A (en) * | 2012-03-06 | 2013-07-10 | 曾学义 | Line type temperature sensing fire detector and alarm method thereof |
| CN111341057A (en) * | 2020-03-11 | 2020-06-26 | 上海辉控电子科技有限公司 | Point type linear temperature-sensing fire detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Anyu Intelligent Technology Co.,Ltd. Assignor: Yang Shixu|Wang Haijuan Contract fulfillment period: 2008.4.2 to 2011.4.2 Contract record no.: 2008210000110 Denomination of utility model: Line temperature sensing fire detector based on resettable switch Granted publication date: 20080604 License type: General permission Record date: 20081226 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.4.2 TO 2011.4.2; CHANGE OF CONTRACT Name of requester: SHANGHAI ANYU INTELLIGENT SCIENCE CO., LTD. Effective date: 20081226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20160904 |