CN104436505A - Kitchen fire extinguishing device adopting thermocouple temperature sensing probe - Google Patents
Kitchen fire extinguishing device adopting thermocouple temperature sensing probe Download PDFInfo
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- CN104436505A CN104436505A CN201310438263.6A CN201310438263A CN104436505A CN 104436505 A CN104436505 A CN 104436505A CN 201310438263 A CN201310438263 A CN 201310438263A CN 104436505 A CN104436505 A CN 104436505A
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- extinguishing device
- thermocouple
- kitchen
- temperature sensitive
- thermocouple temperature
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kitchen fire extinguishing device adopting a thermocouple temperature sensing probe. The kitchen fire extinguishing device comprises a temperature probe, a nozzle and control equipment, wherein the temperature probe is a thermocouple, and is connected with the control equipment through a signal wire; and the temperature probe is arranged above a cooking bench. The kitchen fire extinguishing device disclosed by the invention is high in fire extinguishing accuracy; and the error spraying phenomenon is effectively prevented.
Description
Technical field
The present invention relates to technical field of fire control, particularly relate to a kind of kitchen extinguishing device adopting thermocouple temperature sensitive to pop one's head in.
Background technology
Generally temperature-sensitive fuse sheet and mechanically activated mode is all adopted when the detector of forward galley extinguishing device and extinguishing device start.The uniform temperature produced when kitchen range catches fire causes detector (temperature-sensitive fuse sheet) fusing be arranged in above cooking stove to disconnect, and then the steel wire rope connected on the detector unclamps, the action of automation releasing device, nitrogen enters pharmacy jar by decompressor with rated pressure 7bar, under the effect of liquid level pressure medicament from enter pharmacy jar extrude and be sprayed onto the kitchen range top by fire extinction pipeline, make water flow valve action by the pressure of nitrogen cylinder simultaneously, after medicament ejector, kitchen extinguishing device starts water spray to kitchen range top place, cooling kitchen range top surface, fire on such kitchen range top due to the suppression and water that are subject to medicament cooling and be extinguished.
Although this technology is feasible abroad, but under the kitchen condition of Chinese style, with the cooking method of Chinese cook, such temperature-sensitive and Starting mode also exist a problem, namely on cooking stove, normal naked light often causes kitchen extinguishing device misoperation, and cannot stop spraying, cause unnecessary economic loss.Such as, cook is with big fire cooking, then mention pot and leave cooking stove dress basin, wash pot again, the naked light high temperature on 15-20 cooking stove second reaches 180 DEG C by the temperature at temperature-sensing probe place, and fusible metal sheet melts at once and starts and sprays fire extinguishing, thus generation sprays phenomenon by mistake, all frying pans on cooking stove, deep fryer all will be suffered disaster, and are not only cooking materials etc. and are subject to economic loss, and the prior normal operation operation to dining room is had a strong impact on; According to the fire-salvage specialist in Shanghai and the data statistics of food and drink dealer, the mistake spray rate of the existing conventional kitchen extinguishing device in Shanghai is close to 20%, and the accuracy of kitchen extinguishing device is very low, and directly, indirect economic loss is huge.
Summary of the invention
In view of current kitchen extinguishing device above shortcomings, the invention provides a kind of accuracy of putting out a fire kitchen extinguishing device that is high, that effectively prevent the employing thermocouple temperature sensitive of spray phenomenon by mistake from popping one's head in.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The kitchen extinguishing device adopting thermocouple temperature sensitive to pop one's head in, comprises temp probe, shower nozzle and control appliance, and described temp probe is thermocouple, and described temp probe is connected with control appliance by holding wire; Described temp probe is arranged on the top of the kitchen range top.
According to one aspect of the present invention, described control appliance is single-chip microcomputer industrial control board.
According to one aspect of the present invention, after described control appliance receives signal, start timer time delay 10-60 second, operating personnel press after judging the fire true and false and stop fire extinguishing or fire button.
According to one aspect of the present invention, described thermocouple is platinum thermocouple.
According to one aspect of the present invention, described shower nozzle is the spiral atomizer of low pressure.
According to one aspect of the present invention, described temp probe is arranged on around the circle of Φ 50 ㎝ above kitchen range top central point.
According to one aspect of the present invention, the current changing signal that variations in temperature is formed is sent on the temperature measurer of control appliance by described thermocouple, by the instrument board displays temperature numerical value of temperature measurer.
According to one aspect of the present invention, the position after described the installation of TC and stationary plane are mutually vertical.
Advantage of the invention process: because temp probe of the present invention is thermocouple, thermocouple is connected with control appliance by holding wire; Described temp probe is arranged on around the circle of Φ 50 ㎝ above kitchen range top central point, therefore the fire extinguishing accuracy of kitchen extinguishing device high, effectively prevent from spraying phenomenon by mistake.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of kitchen extinguishing device schematic diagram adopting thermocouple temperature sensitive to pop one's head in of the present invention;
Fig. 2 is the structural representation of thermocouple of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of kitchen extinguishing device adopting thermocouple temperature sensitive to pop one's head in, comprises temp probe, shower nozzle 4 and control appliance 12, and temp probe is thermocouple 5, and temp probe is connected with control appliance 12 by holding wire 11; Described temp probe is arranged on the top of the kitchen range top 13.
As shown in Figure 2, thermocouple 5 is a kind of temperature-sensing elements, and be made up of temperature element 16, inner sleeve protection tube 14 and overcoat protection tube 15, it is fixed on body of wall by fixtures such as flanges.Thermocouple 5 is measuring tempeature directly, and temperature signal is converted to thermo-electromotive force signal, is converted to the temperature of measured medium by instrument; The general principle of thermocouple 5 is material conductor composition closed-loop paths of two kinds of different components, when two ends exist temperature difference, just has electric current and passes through, now just there is electromotive force between two ends in loop---thermo-electromotive force, so-called Seebeck effect that Here it is; The homogeneous conductor of two kinds of different components is thermode, and one end that temperature is higher is working end, and one end that temperature is lower is free end, under free end is in certain stationary temperature usually, according to the functional relation of thermo-electromotive force and temperature, makes the phasing meter of thermocouple 5; Phasing meter obtains under the condition of free end temperature 0 DEG C time, and different thermocouples 5 has different phasing meter.Thermocouple 5 thermometric general principle: the conductor of two kinds of different materials or semiconductor A and B are coupled together, form a closed-loop path, when there is the temperature difference between two on conductor A and B, just electromotive force is produced between the two, thus a curent change is formed in the loop, this phenomenon is called pyroelectric effect, and thermocouple 5 utilizes this effect to carry out work; In actual applications, thermocouple 5 is arranged on around the circle of Φ 50 ㎝ above the kitchen range top 13 central point, effectively can avoid the positive flame of kitchen range top flare, reduces the mistake spray phenomenon of kitchen extinguishing device; The current changing signal that variations in temperature is formed is sent on the temperature measurer of control appliance 12 by thermocouple 5, by the instrument board displays temperature numerical value of temperature measurer, related personnel is facilitated to understand temperature above the kitchen range top 13 in real time, if the temperature above the kitchen range top 13 is too high, before fire does not occur, related personnel takes measures to reduce the temperature above the kitchen range top 13 or stopping cooking operation.
In actual applications, thermocouple 5 is platinum thermocouple preferably, and shower nozzle 4 selects the spiral atomizer of low pressure, and control appliance 12 is single-chip microcomputer industrial control board, and when fire occurs, thermocouple 5 changes because of temperature rising resistance, forms current changing signal, signal passes on the temperature measurer of single-chip microcomputer industrial control board, can pass through instrument board displays temperature numerical value, pass the signal to the input of single-chip microcomputer industrial control board simultaneously, after single-chip microcomputer industrial control board acknowledge(ment) signal, start timer T1 time delay 10-60 second, operating personnel press after judging the fire true and false and stop fire extinguishing or fire button, effectively prevent spray phenomenon by mistake from occurring, the time t1 of timer T1 time delay is adjustable, generally be set as 30 seconds, judge the chance of the fire true and false to operating personnel, to do to stop fire extinguishing or fire-extinguishing operations, if unmanned on the scene, single-chip microcomputer industrial control board sends directive command and starts the valve that nitrogen cylinder 2 is opened in gas solenoid valve 1 action of output, high pressure nitrogen flows out from nitrogen cylinder 2, flask for medicinal preparations 3 is entered by pipeline, pressurize to the liquid surface of flask for medicinal preparations 3, extinguishing medium enters fire-fighting pipeline 10 by cooling gas check valve 8 under the pressure of nitrogen, with the pressure of about 1MPa by the spiral atomizer 4 of low pressure, the water Pcnten-1 yne-4 that can produce variable grain size forms three-dimensional fire extinguishing, be specially: described water is by spiral atomizer, superfine water smoke can be produced drip, median water smoke drips and drips with the water smoke of Large stone, wherein superfine water smoke drips and fills the air above space or whole space suppresses radiant heat and isolated, oxygen is stoped to enter combustion zone, median water smoke drips and penetrates the direct absorbing and cooling temperature of flame, vaporization forms steam expansion and gets rid of or the oxygen that suffocates, the water smoke of Large stone drips through flame direct projection fuel surface cooling heat absorption, and vaporized expanding deoxygenation, the wherein maximum water smoke of not vaporizing drips and sprays into fuel top layer, thus form three-dimensional fire extinguishing, now timer T2 starts timing, the time t2 that timer T2 sets is adjustable (general t2=10 second), attack time was less than 2 seconds, big fire can be extinguished, when after the time t2 arriving timer T2 setting, single-chip microcomputer industrial control board sends the liquid electromagnetic valve 7 that directive command starts output, after liquid electromagnetic valve 7 is opened, the running water of city planting ductwork, by liquid non-return valve 9, starts to spray pure water in order to fire extinguishing procedure of having lowered the temperature.Due to unpredictable element cause liquid electromagnetic valve 7 invalid time, city planting ductwork is provided with ball valve 6, ball valve 6 and liquid electromagnetic valve 7 parallel join, when liquid electromagnetic valve 7 damages, operating personnel can directly open ball valve 6, and the running water of city planting ductwork starts to spray pure water in order to fire extinguishing procedure of having lowered the temperature.
In addition, the position after thermocouple 5 installation is mutually vertical with stationary plane, if stationary plane is mounted obliquely within the top of the kitchen range top 13, the position after thermocouple 5 installation can suitably adjust, and to reach optimum position, stops spray phenomenon by mistake and occurs.
Use the beneficial effect of product of the present invention:
1, put out a fire accuracy high, effectively prevent from spraying phenomenon by mistake
Thermocouple 5 is a kind of temperature-sensing elements, its direct measuring tempeature, and temperature signal is converted to thermo-electromotive force signal, thermocouple 5 thermometric general principle: the conductor of two kinds of different materials or semiconductor A and B are coupled together, form a closed-loop path, when there is the temperature difference between two on conductor A and B, just electromotive force is produced between the two, thus a curent change is formed in the loop, then the signal of curent change is sent to control appliance 12, effectively prevents external factor on the impact of thermocouple 5; Meanwhile, thermocouple 5 is arranged on around the circle of Φ 50 ㎝ above the kitchen range top 13 central point, effectively can avoid the positive flame of kitchen range top flare, closer to the actual conditions of fire, reduces the mistake spray phenomenon of kitchen extinguishing device; In addition, after single-chip microcomputer industrial control board acknowledge(ment) signal, start timer T1 time delay 10-60 second, operating personnel press after judging the fire true and false and stop fire extinguishing or fire button, therefore the fire extinguishing accuracy of kitchen extinguishing device high, effectively prevent from spraying phenomenon by mistake.
2, structure simply, is easily cleaned.
Grease on fusible metal sheet not only can oil dripping in frying pan, grease is also easy to high temperature and works fusing fusible metal sheet of fighting, cause spray by mistake, during cleaning, also easily make sheet metal break off relations because of carelessness and cause misoperation, if also have cooking stove in extinguishing chemical case comparatively far away, the grease in kitchen and steam also usually can make long steel wire and runner get rusty and block, but cannot regular event when fire occurs; Compared with fusible metal sheet, thermocouple 5 structure is simple, be not easy accumulation grease, and thermocouple 5 easily cleans simultaneously, can not cause system malfunction during cleaning.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, the technical staff of any skilled is in technical scope disclosed by the invention; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (8)
1. adopt the kitchen extinguishing device that thermocouple temperature sensitive is popped one's head in, comprise temp probe, shower nozzle and control appliance, it is characterized in that, described temp probe is thermocouple, and described temp probe is connected with control appliance by holding wire; Described temp probe is arranged on the top of the kitchen range top.
2. the kitchen extinguishing device of employing thermocouple temperature sensitive probe according to claim 1, it is characterized in that, described control appliance is single-chip microcomputer industrial control board.
3. the kitchen extinguishing device of employing thermocouple temperature sensitive probe according to claim 2, is characterized in that, after described control appliance receives signal, start timer time delay 10-60 second, operating personnel press after judging the fire true and false and stop fire extinguishing or fire button.
4. the kitchen extinguishing device of employing thermocouple temperature sensitive probe according to claim 2, it is characterized in that, described thermocouple is platinum thermocouple.
5. the kitchen extinguishing device of employing thermocouple temperature sensitive probe according to claim 2, it is characterized in that, described shower nozzle is the spiral atomizer of low pressure.
6., according to the kitchen extinguishing device of the arbitrary described employing thermocouple temperature sensitive probe of claim 1 to 5, it is characterized in that, described temp probe is arranged on around the circle of Φ 50 ㎝ above kitchen range top central point.
7. the kitchen extinguishing device of employing thermocouple temperature sensitive probe according to claim 6, it is characterized in that, the current changing signal that variations in temperature is formed is sent on the temperature measurer of control appliance by described thermocouple, by the instrument board displays temperature numerical value of temperature measurer.
8. the kitchen extinguishing device of employing thermocouple temperature sensitive probe according to claim 7, it is characterized in that, the position after described the installation of TC and stationary plane are mutually vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310438263.6A CN104436505A (en) | 2013-09-23 | 2013-09-23 | Kitchen fire extinguishing device adopting thermocouple temperature sensing probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310438263.6A CN104436505A (en) | 2013-09-23 | 2013-09-23 | Kitchen fire extinguishing device adopting thermocouple temperature sensing probe |
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| Publication Number | Publication Date |
|---|---|
| CN104436505A true CN104436505A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310438263.6A Pending CN104436505A (en) | 2013-09-23 | 2013-09-23 | Kitchen fire extinguishing device adopting thermocouple temperature sensing probe |
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| CN (1) | CN104436505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911974A (en) * | 2020-07-22 | 2020-11-10 | 南通大学 | Dry burning prevention system for gas stove |
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Patent Citations (7)
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| CN1369666A (en) * | 2001-02-16 | 2002-09-18 | 徐忠雄 | Combustion state monitoring method for gas stove and its high-safety control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911974A (en) * | 2020-07-22 | 2020-11-10 | 南通大学 | Dry burning prevention system for gas stove |
| CN111911974B (en) * | 2020-07-22 | 2022-12-27 | 南通大学 | Dry burning prevention system for gas stove |
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Application publication date: 20150325 |
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