CN201038067Y - Performance stable fire detector - Google Patents
Performance stable fire detector Download PDFInfo
- Publication number
- CN201038067Y CN201038067Y CNU2006201285663U CN200620128566U CN201038067Y CN 201038067 Y CN201038067 Y CN 201038067Y CN U2006201285663 U CNU2006201285663 U CN U2006201285663U CN 200620128566 U CN200620128566 U CN 200620128566U CN 201038067 Y CN201038067 Y CN 201038067Y
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- temperature sensor
- sensing element
- fusible
- sensor component
- fire detector
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Abstract
A fire detector with stable performance belongs to a fire controlling technology field which is used for solving the problems that a glass temperature sensor is easy to break and unstable in performance. The utility model comprises a mandrel, a temperature sensor component, a signal switch shell; a contacting plate, a spring, a building post and the temperature sensor component is arranged in the shell; the temperature sensor component is located on the top of the mandrel; the lower part of the mandrel is connected with the contacting plate; the contacting plate is supported by the spring. After being improved, the temperature sensor component is a fusible temperature sensor component 4. The fusible temperature sensor component is in shape of a dumbbell with thick upper and lower ends and narrow middle part. With a traditional glass temperature sensor replaced by the dumbbell-shaped fusible temperature sensor component of the utility model, wrong actions of the fire detector caused by the breaking of the glass temperature sensor for bad weather conditions are effectively avoided; the reliability and stability are both higher than the prior art. The utility model can provide a reliable guarantee to the normal and stable operation of a transformer.
Description
Technical field
The utility model relates to a kind of fire plant, and the fire detector especially for annotating in the nitrogen formula transformer extinguishing device belongs to the fire prevention field.
Background technology
The explosion-proof notes nitrogen of oil extraction formula transformer extinguishing device is the fire plant that present large oil immersed power transformer generally uses, when this device hinders the lasting rising of initiation temperature for some reason at transformer, send actuating signal by fire detector, start oil draining nitrogen filling fire extinguishing program, make oily fast cooling in the oil tank of transformer below flash-point, to prevent blast and burning.The temperature-sensing element that fire detector adopted is a glass temperature-sensitive pipe, glass temperature-sensitive pipe is positioned at a push rod top, push rod is supported by spring, when being elevated to the operating value of glass temperature-sensitive pipe setting because of the contingency initiation temperature, glass temperature-sensitive tracheal rupture, under the spring force effect, push rod makes the signal switching circuit action, thereby the connection alarm circuit sends alarm signal to control circuit.In this detector, glass temperature-sensitive pipe should guarantee to break when uniform temperature as the core parts of detection, should possess certain intensity again.At present, fire detector generally has the problem of job insecurity, and its reason is the hard fragility of glass temperature-sensitive pipe, easily when external force or temperature shock improper fracture takes place, thereby causes the misoperation of extinguishing device.
Summary of the invention
The utility model is used to overcome the defective of prior art and fire detector that a kind of detectivity height, stable performance are provided.
The alleged problem of the utility model is that following technical scheme solves:
A kind of fire detector of stable performance, comprise the signaling switch housing in the formation, the contact that in housing, is provided with, spring, binding post, and push rod, temperature-sensing element, described temperature-sensing element is positioned at the push rod upper end, and the push rod bottom connects contact, and contact is supported by spring, its special feature is: described temperature-sensing element is a fusible temp-sensing element 4, fusible temp-sensing element be shaped as thick, the middle thin dumb-bell shape of upper and lower side.
The fire detector of above-mentioned stable performance, the thinnest place, described fusible temp-sensing element 4 middle parts diameter is 3～6 millimeters, the upper and lower side diameter is 1.5～3 times of the thinnest place, middle part diameter.
The fire detector of above-mentioned stable performance, described fusible temp-sensing element length is 25 millimeters.
The utility model is fragile at glass temperature-sensitive pipe in the existing fire detector, easily cause the problem of extinguishing device misoperation to be improved, substitute traditional glass temperature-sensitive pipe with the fusible temp-sensing element with special dumbbell shape, this metal temperature-sensing element has lower melting temperature and rational mechanical strength.Its geometry helps melting from the quick-break of position, intermediate portion when fusing-off temperature, and is not subjected to weather influence, also can be broken because of external force.It is used on the fire detector, can effectively avoids because of weather conditions change the misoperation that causes, its functional reliability and stability all are higher than existing glass temperature-sensitive pipe.Adopt the utility model to provide reliable assurance for the normal stable operation of transformer.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation that fusible temp-sensing element amplifies.
Each label is expressed as follows in the accompanying drawing: 1. signaling switch housing; 2. binding post; 3. push rod; 4. fusible temp-sensing element; 5. contact; 6. spring; 7. fire detector.
Embodiment
Referring to Fig. 1, comprise push rod 3, temperature-sensing element, signaling switch housing 1 in the formation of the utility model fire detector 7 and be arranged on signaling switch housing interior contact 5, spring 6, binding post 2.The temperature-sensing element that the utility model adopted is a fusible temp-sensing element 4, and it is positioned at the push rod upper end, and the push rod bottom connects contact, and contact is supported by spring.Referring to Fig. 2, described fusible temp-sensing element is the thick middle thin dumb-bell shape of upper and lower side, and its upper and lower side diameter is 1.5～3 times of the thinnest place, middle part diameter, and the thinnest place, middle part diameter is 3～6 millimeters, and length is 25 millimeters.Fusible temp-sensing element adopts alloy material to make, and it has lower fusing point, to guarantee being able to quick-break when the design temperature; Simultaneously, it also must possess certain intensity, can not be out of shape under the effect at spring force when the operate as normal guaranteeing, its special shape can guarantee when arriving fusing-off temperature by its middle part quick fuse.
The utility model is used for the explosion-proof notes nitrogen of oil extraction formula transformer extinguishing device, when temperature is elevated to a certain value, fusible temp-sensing element is by the middle part quick fuse, under the spring force effect, push rod rises, and the contact that is connected the push rod bottom presses binding post 2, connects alarm circuit, send alarm signal, this signal enabling oil draining nitrogen filling program begins fire extinguishing.Because of not being subjected to weather conditions and mounting means, fusible temp-sensing element do not influence, so stable work in work, reliability height.
Fusible temp-sensing element is formed by the raw material melting of following weight parts: Sn 38～42, and Pb 24～26, and Cr 19～21, and Ni 14～16, and its fusion temperature of the temperature sensibility that obtains thus is 120～160 ℃.
Claims (3)
1. the fire detector of a stable performance, it is by signaling switch housing [1], the contact [5] that is provided with in housing, spring [6], binding post [2], and push rod [3] and temperature-sensing element formation, described temperature-sensing element is positioned at the push rod upper end, the push rod bottom connects contact, contact is supported by spring, it is characterized in that: described temperature-sensing element is a fusible temp-sensing element [4], fusible temp-sensing element be shaped as thick, the middle thin dumb-bell shape of upper and lower side.
2. according to the fire detector of the described stable performance of claim 1, it is characterized in that: the thinnest place, described fusible temp-sensing element (4) middle part diameter is 3～6 millimeters, and the upper and lower side diameter is 1.5～3 times of the thinnest place, middle part diameter.
3. the fire detector of stable performance according to claim 1 and 2, it is characterized in that: described fusible temp-sensing element length is 25 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201285663U CN201038067Y (en) | 2006-12-31 | 2006-12-31 | Performance stable fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201285663U CN201038067Y (en) | 2006-12-31 | 2006-12-31 | Performance stable fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038067Y true CN201038067Y (en) | 2008-03-19 |
Family
ID=39210586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201285663U Expired - Fee Related CN201038067Y (en) | 2006-12-31 | 2006-12-31 | Performance stable fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038067Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064700A (en) * | 2018-08-27 | 2018-12-21 | 佛山市高明毅力温控器有限公司 | A kind of electric fire alarm |
| CN112735076A (en) * | 2020-12-22 | 2021-04-30 | 中车资阳机车有限公司 | Device and method for initial fire detection of fixed top storage tank |
-
2006
- 2006-12-31 CN CNU2006201285663U patent/CN201038067Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064700A (en) * | 2018-08-27 | 2018-12-21 | 佛山市高明毅力温控器有限公司 | A kind of electric fire alarm |
| CN109064700B (en) * | 2018-08-27 | 2024-04-02 | 佛山市高明毅力温控器有限公司 | Electrical fire alarm |
| CN112735076A (en) * | 2020-12-22 | 2021-04-30 | 中车资阳机车有限公司 | Device and method for initial fire detection of fixed top storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI TRANSFORMER CO.,LTD. Free format text: FORMER OWNER: TIANWEI GROUP CO., LTD., BAODING Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: No 2399, West Print-Rite Road, Baoding, Hebei: 071056 Patentee after: Baoding Tianwei Transformer Co., Ltd. Address before: Baoding, Hebei Province, high street, chemical fiber North Road, 128 Jin Di garden complex building, zip code: 071051 Patentee before: Baoding Tianwei Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20131231 |