CN101183479A - Fusible air duct type linear temperature-sensitive detector - Google Patents
Fusible air duct type linear temperature-sensitive detector Download PDFInfo
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- CN101183479A CN101183479A CNA2007101580574A CN200710158057A CN101183479A CN 101183479 A CN101183479 A CN 101183479A CN A2007101580574 A CNA2007101580574 A CN A2007101580574A CN 200710158057 A CN200710158057 A CN 200710158057A CN 101183479 A CN101183479 A CN 101183479A
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Abstract
The invention is aimed to provide a meltable windpipe type linear temperature sensing detector, with the function of differential temperature, thermostatic, differential or preset temperature alarm, and having the advantages of small size in determining temperature alarm, high sensitivity, strong electromagnetic interference free, high reliability and low cost. The invention comprises a pressure generating detecting device in a normal connection with a meltable plastic pipe and an end cover; wherein, the pressure generating detecting device mainly comprises a pressure sensor, a pressure generator and a microcomputer processor. The invention is characterized in that: the pressure generating detecting device and the melting plastic pipe is named windpipe for short, and formed a sealed chamber, the windpipe is pressed by a pressure generator in the pressure generating detecting device with a fixed pressure and kept on, wherein, the pressure can be a positive pressure or a negative pressure; according to the different settings on the pressure generating device, respectively outputting preset temperature alarm signal, or failure signal, or differential preset alarm signal or power failure signal of the pressure generating detecting device.
Description
Technical field
The present invention relates to a kind of fusible air duct type linear temperature-sensitive detector, have differential temperature, constant temperature, different constant temperature warning function.
Background technology
A kind of renewable type air pipe-type line type different constant temperature fire detector of the prior art, it is a kind of purposes fire detector very widely, the present air pipe-type line type different constant temperature fire detector that uses, this detector mainly connects metal tube by pressure generation pick-up unit and end cap is formed, metal tube forms a sealed chamber, when the air hose temperature raises, pressure in the air hose increases, send the constant temperature alerting signal according to pressure set points, can send the differential temperature alerting signal according to heating rate.The minimum warning length that operating temperature is not more than 105 ℃ air hose fixed temperature detector should be not more than 5% of maximal use length, and operating temperature should be greater than 10% of maximal use length greater than the minimum warning length of 105 ℃ air hose fixed temperature detector.The minimum warning length of air hose rate-of-rise detector is 20% of maximal use length, but is not more than 20 meters.The advantage of this detector is: can recover after the detector alarm temperature, shortcoming is: the copper pipe cost height that air hose adopts, and the air hose length of being heated was big when constant temperature was reported to the police, and the constant temperature warning sensitivity is low.For this reason, need to propose a kind of new fusible air duct type linear temperature-sensitive detector.
Summary of the invention
The purpose of this invention is to provide a kind of fusible air duct type linear temperature-sensitive detector, have differential temperature, constant temperature, different constant temperature warning function.And constant temperature warning small size, highly sensitive, anti-electromagnetic interference (EMI) is strong, the reliability height, cost is low.
A kind of fusible air duct type linear temperature-sensitive detector is made up of with usual manner connection melting plastic tube and end cap pressure generation pick-up unit, and pressure generation pick-up unit mainly comprises pressure transducer, pressure generator and computer processor.Pressure generation pick-up unit and melting plastic tube are called for short air hose, form a sealed chamber, and the pressure generator of pressure generation pick-up unit is to the pressure that applies a fixed value in the air hose and keep, pressure can be malleation also but negative pressure.
Set difference according to pressure generation pick-up unit, export constant temperature fire alarm, fault-signal, different constant temperature fire alarm and pressure generation pick-up unit disconnection fault signal respectively.
Compared with the prior art the present invention has following advantage:
(1) a kind of fusible air duct type linear temperature-sensitive detector of the present invention, employing be fusiblely maybe can melt plastic tube, anti-electromagnetic interference (EMI) is strong, and the production efficiency height, cost is very low, and is easy for installation, safeguards simply, has the characteristics of intrinsic safety type simultaneously.
(2) the fusible plastic tube that maybe can melt of the present invention's employing is as surveying major part, to the sensitive height of the response of surveying local overheating and small size fire.
Description of drawings
Fig. 1 is traditional renewable type air pipe-type line type different constant temperature fire detector structural representation;
Fig. 2 is a kind of fusible air duct type linear temperature-sensitive detector example 1 structural representation of the present invention;
Fig. 3 is a kind of fusible air duct type linear temperature-sensitive detector example 2 structural representations of the present invention;
Fig. 4 is a kind of fusible air duct type linear temperature-sensitive detector example 3 structural representations of the present invention;
Fig. 5～Fig. 7 is three kinds of cross-sectional view of the air hose of a kind of fusible air duct type linear temperature-sensitive detector of the present invention.
Embodiment
A kind of fusible air duct type linear temperature-sensitive detector, example 1 is seen Fig. 2, be made up of pressure generation pick-up unit 1 usefulness usual manner connection melting plastic tube 2 and end cap 3, pressure generation pick-up unit 1 mainly comprises pressure transducer, pressure generator and computer processor.Pressure generation pick-up unit 1 is called for short air hose 2 with the melting plastic tube, forms a sealed chamber, and the pressure generator of pressure generation pick-up unit 1 is to the pressure that applies a fixed value in the air hose 2 and keep, pressure can be malleation also but negative pressure.Wherein the cross-section structure of air hose 2 is seen Fig. 5, can be uniform wall thickness; Referring to Fig. 6, also can be the melting plastic tube of uniform wall thickness, wherein the part is a thin-walled, improves sensitivity; Referring to Fig. 7, can also be that one or above metal or nonmetal wire 4 are set in the meltable material of air hose 2 of non-homogeneous or uniform wall thickness, improve the tensile strength of air hose, can be used as conductor simultaneously.
Pressure generation pick-up unit 1 setting means one: when air hose 2 is heated, volume expansion in the air hose 2, pressure generation pick-up unit 1 detects air hose 2 internal pressure rising changing values one, when temperature raises and surpass a set temperature value, air hose 2 softening or fusions, under the pressure effect in air hose 2, air hose 2 is damaged, air in the air hose 2 is leaked, pressure in the air hose 2 descends, pressure generation pick-up unit 1 detects less than a fixation pressure value two, judges output constant temperature fire alarm according to pressure lift-off value one and force value two; When air hose 2 pressure have only the variation of decline, then export the leakage failure signal.
Pressure generation pick-up unit setting means two: the pressure in air hose 2 descends, and pressure generation pick-up unit 1 detects less than a fixation pressure value, then judges output constant temperature fire alarm, and this kind situation is applicable to the small size fire, and response is sensitive high.
Pressure generation pick-up unit setting means three: when air hose 2 is heated, the volume expansion in the air hose 2, pressure generation pick-up unit 1 detects air hose 2 internal pressure rising changing values and exports the one-level fire alarm for the moment; When temperature raises and surpass a set temperature value, air hose 2 softening or fusions, under the pressure effect in air hose 2, air hose 2 is damaged, air in the air hose 2 is leaked, pressure in the air hose 2 descends, and pressure generation pick-up unit 1 detects less than a fixation pressure value two, then exports multiple alarm.
Pressure generation pick-up unit is when the rising of air hose 2 heating temperatures in above-mentioned three kinds of setting meanss, volume expansion in the air hose 2, pressure generation pick-up unit 1 can also be judged output differential temperature alerting signal according to the rate of pressure change of volume expansion generation and the relation of heating rate.Pressure generation pick-up unit 1 self-checking function of cutting off the power supply in addition, exportable pressure generation pick-up unit 1 disconnection fault signal during outage.
Properties of materials explanation of the present invention:
1, select the performance of melting plastic tube material to be: Vicat softening point is 40 ℃～180 ℃ all plastics, an elastomeric material.Pipe thickness is to select for use between 0.01mm～5.0mm, and external diameter is selected for use between 1mm～10.0mm.
Claims (4)
1. fusible air duct type linear temperature-sensitive detector, be made up of with usual manner connection melting plastic tube abbreviation air hose (2) and end cap (3) pressure generation pick-up unit (1), pressure generation pick-up unit (1) mainly comprises pressure transducer, pressure generator and computer processor.Pressure generation pick-up unit (1) and air hose (2) form a sealed chamber, and the pressure generator of pressure generation pick-up unit (1) is to the pressure that applies a fixed value in the air hose (2) and keep, pressure can be malleation also but negative pressure.Wherein the cross-section structure of air hose (2) can be a uniform wall thickness; Also can be the melting plastic tube of uniform wall thickness, wherein the part be a thin-walled, improves sensitivity; Can also be that one or above metal or nonmetal wire (4) are set in the meltable material of air hose (2) of non-homogeneous or uniform wall thickness, improve the tensile strength of air hose, can be used as conductor simultaneously.
2. a kind of fusible air duct type linear temperature-sensitive detector according to claim 1, it is characterized in that pressure generation pick-up unit (1) setting means one: when air hose (2) is heated, volume expansion in the air hose (2), pressure generation pick-up unit (1) detects air hose (2) internal pressure rising changing value one, when temperature raises and surpass a set temperature value, softening or the fusion of air hose (2), under the pressure effect in air hose (2), air hose (2) is damaged, air in the air hose 2 is leaked, pressure in the air hose (2) descends, pressure generation pick-up unit (1) detects less than a fixation pressure value two, judges output constant temperature fire alarm according to pressure lift-off value one and force value two; When air hose (2) pressure has only the variation of decline, then export the leakage failure signal.
Pressure generation pick-up unit (1) setting means two: the pressure in air hose (2) descends, pressure generation pick-up unit (1) detects less than a fixation pressure value, then judge output constant temperature fire alarm, this kind situation is applicable to the small size fire, and response is sensitive high.
Pressure generation pick-up unit (1) setting means three: when air hose (2) is heated, the volume expansion in the air hose (2), pressure generation pick-up unit (1) detects air hose (2) internal pressure rising changing value and exports the one-level fire alarm for the moment; When temperature raises and surpass a set temperature value, softening or the fusion of air hose (2), under the pressure effect in air hose (2), air hose (2) is damaged, air in the air hose (2) is leaked, pressure in the air hose (2) descends, and pressure generation pick-up unit (1) detects less than a fixation pressure value two, then exports multiple alarm.
In three kinds of setting meanss of pressure generation pick-up unit (1), when air hose (2) heating temperature raises, volume expansion in the air hose (2), pressure generation pick-up unit (1) can also be judged output differential temperature alerting signal according to the rate of pressure change of volume expansion generation and the relation of heating rate.Pressure generation pick-up unit (1) self-checking function of cutting off the power supply in addition, exportable pressure generation pick-up unit (1) disconnection fault signal during outage.
3. according to claim 1, a kind of structure of fusible air duct type linear temperature-sensitive detector, the end that it is characterized in that air hose (2) has increased blowdown valve (6), is used for pressure generator fault in (2) leakage of analog detection air hose and obstruction or the pressure generation pick-up unit (1).When the cross-section structure of air hose (2) be uniform wall thickness or also can be the melting plastic tube of uniform wall thickness, local when be thin-wall construction, letting out pressure valve (6) is manual blowdown valve.When the situation of one or above metal or nonmetal wire (4) is set in the cross-section structure of air hose 2 can also be the meltable material of air hose (2) of non-homogeneous or uniform wall thickness, blowdown valve (6) then adopts manual and electronic blowdown valve, but while pressure boost sensor, be connected with pressure generation pick-up unit (1) by the tinsel (4) that is provided with in air hose (2) material, pressure generation pick-up unit (1) can regularly detect air hose (2).
4. according to claim 1, a kind of structure of fusible air duct type linear temperature-sensitive detector, the end that it is characterized in that air hose (2) is connected on manual, the electronic blowdown valve (6) and pressure sensor interface that increases in the pressure generation pick-up unit (1), be particularly useful for the multi-layer cable crane span structure, form a closed loop sniffer, be used for (2) leakage of analog detection air hose and obstruction or pressure to send out the device fault.Wherein the cross-section structure of air hose (2) can be a uniform wall thickness; Also can be the melting plastic tube of uniform wall thickness, wherein the part be a thin-walled; Can also be that one or above metal or nonmetal wire (4) are set in the meltable material of air hose (2) of non-homogeneous or uniform wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101580574A CN101183479A (en) | 2007-11-09 | 2007-11-09 | Fusible air duct type linear temperature-sensitive detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101580574A CN101183479A (en) | 2007-11-09 | 2007-11-09 | Fusible air duct type linear temperature-sensitive detector |
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| Publication Number | Publication Date |
|---|---|
| CN101183479A true CN101183479A (en) | 2008-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101580574A Pending CN101183479A (en) | 2007-11-09 | 2007-11-09 | Fusible air duct type linear temperature-sensitive detector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614086A (en) * | 2015-03-06 | 2015-05-13 | 上海新微技术研发中心有限公司 | Air pressure type temperature sensor and manufacturing method thereof |
| CN105528849A (en) * | 2014-10-16 | 2016-04-27 | 基德科技公司 | Pneumatic detector assembly with bellows |
| CN117664372A (en) * | 2024-01-31 | 2024-03-08 | 山东千颐科技有限公司 | Mine goaf natural ignition temperature measurement system based on computer |
-
2007
- 2007-11-09 CN CNA2007101580574A patent/CN101183479A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528849A (en) * | 2014-10-16 | 2016-04-27 | 基德科技公司 | Pneumatic detector assembly with bellows |
| CN105528849B (en) * | 2014-10-16 | 2019-11-05 | 基德科技公司 | Pneumatic type detector module with bellows |
| CN104614086A (en) * | 2015-03-06 | 2015-05-13 | 上海新微技术研发中心有限公司 | Air pressure type temperature sensor and manufacturing method thereof |
| CN117664372A (en) * | 2024-01-31 | 2024-03-08 | 山东千颐科技有限公司 | Mine goaf natural ignition temperature measurement system based on computer |
| CN117664372B (en) * | 2024-01-31 | 2024-04-16 | 山东千颐科技有限公司 | Mine goaf natural ignition temperature measurement system based on computer |
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