CN201017434Y - Linetype temperature-sensing fire disaster detector - Google Patents
Linetype temperature-sensing fire disaster detector Download PDFInfo
- Publication number
- CN201017434Y CN201017434Y CNU2007200955164U CN200720095516U CN201017434Y CN 201017434 Y CN201017434 Y CN 201017434Y CN U2007200955164 U CNU2007200955164 U CN U2007200955164U CN 200720095516 U CN200720095516 U CN 200720095516U CN 201017434 Y CN201017434 Y CN 201017434Y
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- Prior art keywords
- temperature sensor
- linear temperature
- insulating layer
- linear
- type heat
- 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 - Lifetime
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- 150000003839 salts Chemical class 0.000 claims abstract description 38
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- VYMDGNCVAMGZFE-UHFFFAOYSA-N phenylbutazonum Chemical class O=C1C(CCCC)C(=O)N(C=2C=CC=CC=2)N1C1=CC=CC=C1 VYMDGNCVAMGZFE-UHFFFAOYSA-N 0.000 description 1
- 239000013308 plastic optical fiber Substances 0.000 description 1
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- 229920000915 polyvinyl chloride Polymers 0.000 description 1
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- Fire-Detection Mechanisms (AREA)
Abstract
The utility model discloses a linear thermometric fire detector. The detector mainly comprises a linear temperature sensor element and a conversion box linked to one end of the linear temperature sensor element. Wherein, the linear temperature sensor element comprises two parallel-arranged detecting conductors, and a meltable salt material layer and a meltable insulating layer that are arranged the detecting conductors in parallel. Moreover, at least one of the detecting conductors is an elastic conductor. The utility model provides the linear thermometric fire detector that provides the meltable salt material layer and the meltable insulating layer between the two detecting conductors, so as to form a linear temperature sensor element. Thus, external water can enter the linear temperature sensor element to melt the meltable salt in the area. However, an un-softened meltable insulating layer still exists between the two detecting conductors; Therefore, the linear thermometric fire detector will not launch false alarm, so as to ensure the linear thermometric fire detector work normally.
Description
Technical field
The utility model relates to a kind of line-type heat detector, particularly relate to a kind of can moistureproof and waterproof, the high line-type heat detector of reliability of therefore reporting to the police.
Background technology
Line-type heat detector commonly used at present is a kind of broad-spectrum fire detector, mainly by linear temperature sensor and be connected an end of linear temperature sensor, can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected, and form according to the boxcar that the size of temperature or warning electrical quantity (or sampled value) is sent fire alarm signal.United States Patent (USP) the 5th, 793 discloses a kind of line-type heat detector in No. 293.Fig. 1 is a linear temperature sensor transverse sectional view in this line-type heat detector.As shown in Figure 1, this linear temperature sensor is to be reached to walk abreast by two parallel detecting conductors that are provided with 1,2 to be arranged on detecting conductor 1, but the fused salt between 2 (eutectic salts) material layer 3 is formed; Wherein fusible salt material layer 3 is but that glass fibre or plastic optical fibre are immersed in the fused salt of fusing, but the fiber that will soak fused salt then twines or is wrapped in the outside of detecting conductor and makes.But the fusing point of fused salt is 60～300 ℃, and after the fusing, its electric conductivity strengthens, and promptly resistance reduces, and after solidifying, its electric conductivity reduces, and promptly resistance increases.When breaking out of fire, the linear temperature sensor that is positioned at the scene of fire in this detector will raise because of the temperature of being heated, but fused salt states of matter in the fusible salt material layer 3 of inside, heated part or electric conductivity will be subjected to the influence of temperature rising and change at this moment, thereby the electrical quantity of linear temperature sensor is also changed thereupon, at this moment, the boxcar that is connected linear temperature sensor one end will detect this variation immediately, in case but the temperature of this heated part surpasses the temperature of fusion of fused salt, boxcar sends fire alarm signal immediately, thereby reaches the purpose of fire alarm.But, there is following point in the line-type heat detector of this prior art: but owing to the fused salt chance water of linear temperature sensor inside in this detector can produce dissolving, thereby it is very responsive to wet environment, therefore, in case its fully or the part be in the wet environment, outside moisture will penetrate into the fusible salt material layer 3 of linear temperature sensor inside, thereby its electric conductivity is increased, the boxcar that be connected linear temperature sensor one end this moment just can detect this variation immediately, therefore might cause occurring false alarm.
Summary of the invention
In order to address the above problem, the purpose of this utility model be to provide a kind of can moistureproof and waterproof, the high line-type heat detector of reliability of therefore reporting to the police.
In order to achieve the above object, the line-type heat detector that provides of the utility model mainly is made up of linear temperature sensor and the boxcar that is connected linear temperature sensor one end; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with and parallel fusible salt material layer and the fused insulating layers that are arranged between the detecting conductor, and in the detecting conductor at least one be elastic conductor.
A detecting conductor in the described linear temperature sensor is a thermocouple wire.
At least one outside is coated with fusible salt material layer and fused insulating layer successively in the described detecting conductor.
At least one outside is coated with fused insulating layer and fusible salt material layer successively in the described detecting conductor.
An external packets in the described detecting conductor is covered with fused insulating layer, and another root external packets is covered with fusible salt material layer.
The external packets of described detecting conductor, fusible salt material layer and fused insulating layer is covered with insulating sheath.
The line-type heat detector that the utility model provides is fusible salt material layer and fused insulating layer are arranged between two detecting conductors and constitute linear temperature sensor, even outside like this moisture enters into the inside of linear temperature sensor and but the fused salt at this position is dissolved, but owing to still have not softening fused insulating layer between two detecting conductors, therefore line-type heat detector can not cause false alarm therefrom yet, thereby can guarantee that line-type heat detector is working properly.
Description of drawings
Fig. 1 is a linear temperature sensor transverse sectional view in the line-type heat detector of prior art.
The line-type heat detector structural representation that Fig. 2 provides for the utility model.
Linear temperature sensor transverse sectional view in the line-type heat detector that Fig. 3 provides for the utility model.
Linear temperature sensor partial structurtes cut-open view in the line-type heat detector that the utility model provided when Fig. 4 adopted coaxial manner to be provided with for detecting conductor.
Embodiment
Below in conjunction with drawings and the specific embodiments the line-type heat detector that the utility model provides is elaborated.
Embodiment 1:
The line-type heat detector structural representation that Fig. 2 provides for the utility model.Linear temperature sensor transverse sectional view in the line-type heat detector that Fig. 3 provides for the utility model.As Fig. 2, shown in Figure 3, the line-type heat detector that the utility model provides mainly is made up of linear temperature sensor and the boxcar 19 that is connected linear temperature sensor one end; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with 5,9 and parallelly is arranged on detecting conductor 5, but the fused salt between 9 (or eutectic salts) material layer 6 and fused insulating layer 7, and in the detecting conductor 5,9 at least one be elastic conductor.Be coated with fusible salt material layer 6 and fused insulating layer 7 on the detecting conductor 5 successively, can certainly on detecting conductor 5, coat fused insulating layer 7 and fusible salt material layer 6 successively, or fusible salt material layer 6 and fused insulating layer 7 be coated on respectively on two detecting conductors 5,9.In addition, can be covered with insulating sheath in the external packets of linear temperature sensor, this insulating sheath not only can make linear temperature sensor and external insulation, but also can play waterproof and dampproof effect to fusible salt material layer 6.In addition, also can connect a terminal resistance 18 that works the supervision effect of opening circuit at the other end of linear temperature sensor.
Described detecting conductor 5,9 can be hollow core conductor, solid conductor or metal fibre braided wire, and that parallel setting then comprises is parallel, winding and mode such as coaxial.When detecting conductor 5,9 adopts coaxial manner to be provided with, as shown in Figure 4, the seal boot of detecting conductor 5 for making by aluminium foil, add the isometric metallic conductor silk 20 of one and detecting conductor 5 within it on the periphery, be convenient to wiring like this, and it can also play waterproof and dampproof effect.
Described fused insulating layer 7 employed materials are selected from a kind of in a kind of or low density polyethylene in wax, naphthalene, anthracene, stearic acid, the rosalin, high density polyethylene, linear low density polyethylene, polypropylene, Polyvinylchloride, natural rubber, nitrile rubber, the ethylene-propylene-diene rubber, its melting range is 40～220 ℃, thickness is between 0.05～10mm, and the thickness range of fusible salt material layer 6 then is 0.05～10mm.
Described elastic conductor can adopt memory alloy wire or carbon spring steel wires.Memory alloy wire can be a kind of in Ultimum Ti, NiTi copper memorial alloy, iron-based memorial alloy, the copper-based memory alloy material.The design load of the martensite phase transformation finishing temperature Af of memory alloy wire can be selected to set in 20～140 ℃ of scopes.
Embodiment 2:
Present embodiment is the improvement on embodiment 1 basis: one that is about in two detecting conductors 5,9 of above-mentioned linear temperature sensor is adopted thermocouple wire to make, thereby form a linear temperature sensor with thermocouple characteristic with another root detecting conductor, boxcar 19 will send fire alarm signal according to voltage (electromotive force) value of linear temperature sensor this moment.
The principle of work of the line-type heat detector that the utility model provides is as follows:
1) under normal circumstances, this moment, but environment temperature was lower than the temperature of fusion of fused salt and the softening temperature of fused insulating layer 7 simultaneously, but the fused salt of linear temperature sensor inside is fusing not, fused insulating layer 7 is not softening yet simultaneously, so detecting conductor 5, resistance between 9 is still very big, and at this moment electrical quantity (or sampled value) size of boxcar 19 detected linear temperature sensors can not surpass the constant temperature alarming threshold value, so detector can not send alerting signal.
2) when breaking out of fire, but the temperature of heated part will be higher than the temperature of fusion of fused salt and the softening temperature of fused insulating layer 7 on the linear temperature sensor, but the electric conductivity of the fused salt of this inside, position can be undergone mutation at this moment, be that its resistance value becomes very little (being equivalent to the conducting of heat affected zone section), meanwhile, the detecting conductor 5 of heated part, the distortional stress that exists between 9 will eliminate the fused insulating layer 7 of this inside, position, thereby make detecting conductor 5, resistance between 9 becomes very little, at this moment boxcar 19 can detect this variation immediately, and when the electrical quantity size of linear temperature sensor surpasses the constant temperature alarming threshold value, send fire alarm signal, thereby can report to the police reliably.
3) be installed in wet environment following time when linear temperature sensor, this moment, environment temperature was lower than the constant temperature alarm temperature.In case it is inner that outside moisture enters into the whole or regional area of linear temperature sensor, but meeting water, the fused salt of this intra-zone will produce dissolving, it is very little to be that its resistance value can become, but because two detecting conductors 5, also there is not softening fused insulating layer 7 between 9, so detecting conductor 5, resistance between 9 is still very big, at this moment electrical quantity (or sampled value) size of boxcar 19 detected linear temperature sensors can not exceed the constant temperature alarming threshold value, thereby can not cause false alarm therefrom, thereby can guarantee that line-type heat detector is working properly.
Claims (6)
1. line-type heat detector mainly is made up of linear temperature sensor and the boxcar (19) that is connected linear temperature sensor one end; Wherein linear temperature sensor comprises two parallel detecting conductors (5 that are provided with, 9) and the parallel detecting conductor (5 that is arranged on, 9) the fusible salt material layer (6) between, it is characterized in that: described linear temperature sensor also comprises a parallel detecting conductor (5 that is arranged on, 9) fused insulating layer between (7), and at least one is elastic conductor in the detecting conductor (5,9).
2. line-type heat detector according to claim 1 is characterized in that: a detecting conductor in the described linear temperature sensor is a thermocouple wire.
3. line-type heat detector according to claim 1 is characterized in that: at least one outside is coated with fusible salt material layer (6) and fused insulating layer (7) successively in the described detecting conductor (5,9).
4. line-type heat detector according to claim 1 is characterized in that: at least one outside is coated with fused insulating layer (7) and fusible salt material layer (6) successively in the described detecting conductor (5,9).
5. line-type heat detector according to claim 1 is characterized in that: an external packets in the described detecting conductor (5,9) is covered with fused insulating layer (7), and another root external packets is covered with fusible salt material layer (6).
6. according to claim 1,2,3,4 or 5 described line-type heat detectors, it is characterized in that: the external packets of described detecting conductor (5,9), fusible salt material layer (6) and fused insulating layer (7) is covered with insulating sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200955164U CN201017434Y (en) | 2007-03-16 | 2007-03-16 | Linetype temperature-sensing fire disaster detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200955164U CN201017434Y (en) | 2007-03-16 | 2007-03-16 | Linetype temperature-sensing fire disaster detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017434Y true CN201017434Y (en) | 2008-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200955164U Expired - Lifetime CN201017434Y (en) | 2007-03-16 | 2007-03-16 | Linetype temperature-sensing fire disaster detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017434Y (en) |
-
2007
- 2007-03-16 CN CNU2007200955164U patent/CN201017434Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: LI GANGJIN ¬ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Li Gangjin Number: 06 Page: The title page Volume: 24 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Li Gangjin Number: 06 Volume: 24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ¬ TO: LI GANGJIN ¬ |
|
| ASS | Succession or assignment of patent right |
Owner name: SHOU AN INDUSTRY FIRE LTD. Free format text: FORMER OWNER: ZHANG WEISHE; PATENTEE Effective date: 20080627 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080627 Address after: Beijing City, the Capital Airport South Industrial Zone Banbidian Lee Road No. 22, zip code: 101304 Patentee after: Sureland Industry Fire-Fighting Co., Ltd. Address before: The construction of the road in the middle of Xiqing Yangliuqing town, Tianjin District 55, zip code: 300380 Co-patentee before: Li Gangjin Patentee before: Zhang Wei |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Linear temperature-sensing fire detector Effective date of registration: 20121010 Granted publication date: 20080206 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
|
| CX01 | Expiry of patent term | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171114 Granted publication date: 20080206 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |