CN2699153Y - Backfire protecting device for gas kitchen range - Google Patents
Backfire protecting device for gas kitchen range Download PDFInfo
- Publication number
- CN2699153Y CN2699153Y CN 200420004073 CN200420004073U CN2699153Y CN 2699153 Y CN2699153 Y CN 2699153Y CN 200420004073 CN200420004073 CN 200420004073 CN 200420004073 U CN200420004073 U CN 200420004073U CN 2699153 Y CN2699153 Y CN 2699153Y
- Authority
- CN
- China
- Prior art keywords
- kitchen range
- tempering
- backfire
- thermocouple
- gas kitchen
- 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 - Fee Related
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- Control Of Combustion (AREA)
Abstract
The utility model relates to a backfire protecting device for a gas kitchen range, particularly a gas kitchen range which is provided with an accidental flame-out protection device. The utility model uses two thermo-couples with the same specification and model to be oppositely connected in series so that circuits are mutually canceled, and thus, the aim of the automatic extinction of backfire generated when a gas kitchen range is normally used or ignited is achieved. The utility model effectively prevents the glass panel of the kitchen range from bursting and other loss caused by the backfire.
Description
Affiliated technical field
The utility model is used for gas kitchen ranges, especially has the gas kitchen ranges of protector of accident extinguishing.
Background technology
At present; though known gas kitchen ranges great majority have protector of accident extinguishing; but there is not the tempering protective device; and gas kitchen ranges in use can't be stopped the generation of tempering fully; tempering is exactly to catch fire in inner combustion gas of kitchen range and the Air mixing pipe, makes the inner and panel temperature fast rise of kitchen range.It can make face glass produce explosion, makes stainless steel faceplate variable color or distortion, and the kitchen range inner components burns out, and the injury accident of Chan Shenging happens occasionally therefrom, and manufacturing enterprise for this reason and the example of compensating is also a lot of but also relates to safety problem.
Summary of the invention
In order to make gas kitchen ranges when tempering takes place, in time cut off source of the gas; stop tempering; reach again used element more less, structure is simple more, cost is low more good more; the utility model makes full use of the original protector of accident extinguishing of kitchen range; in this device, increase a kind of thermocouple differential concatenation tempering holding circuit, just can realize the tempering protection.
The technical scheme that its technical problem that solves the utility model adopts is: in producing the mixing tube of tempering, installed one with protector of accident extinguishing in the burner thermocouple be the tempering thermocouple of same size, model, and the polarity of two thermocouples to connect be differential concatenation.When tempering took place, the electromotive force that electromotive force that the tempering thermocouple produces and burner thermocouple have produced reached equal and opposite in direction, direction to instead, cancels out each other, and making the line solenoid valve loop current is zero.Magnetic valve resets, and air valve switch is closed, and tempering is extinguished.
The beneficial effects of the utility model are, under the function that does not influence original accident extinguishing protection, reached the tempering defencive function, and used element have only a thermocouple and an insulated porcelain sleeve, and structure is very simple.
Description of drawings
Embodiment below in conjunction with accompanying drawing further specifies the utility model.
1. magnetic valves in the accompanying drawing, 2. electromagnetic valve coil, 3. fixed electromagnet, 4. movable spool; 5. spring 6. air valve switch, 7. gas inlet, 8. air valve switch gas outlet, 9. burner thermocouple; 10. protect flame 11. burners, 12. mixing tubes, 13. tempering thermocouples, 14. insulated porcelain sleeves
KF in the accompanying drawing is the switch on the kitchen range panel; pressing K switch F makes movable spool (4) contact with fixed electromagnet (3); gas inlet (7) is logical with air valve switch gas outlet (8); burner (11) is produced protect flame (10); the electromotive force that burner thermocouple (9) heating back produces flows into electromagnetic valve coil (2); produced electromagnetic attraction and made movable spool (4) and fixed electromagnet (3) keep attracting state, kitchen range normally use.When the soup of hotting plate overflows or a gust of wind when burner flame accident is extinguished, burner thermocouple (9) temperature reduces to be resetted magnetic valve (1) to cut off source of the gas and protects.The operation principle of the protector of accident extinguishing of many gas kitchen ranges on Here it is the market.
The specific embodiment
It among the embodiment of accompanying drawing a kind of thermocouple differential concatenation tempering protective device.Wherein insulated porcelain sleeve (14) is enclosed within tempering thermocouple (13) and goes up and put in the hole of mixing tube (12) fixing, the negative pole of the negative pole of tempering thermocouple (13) and burner thermocouple (9) is connected, and the heart yearn of the positive pole of tempering thermocouple (13) and electromagnetic valve coil (2) is connected.
Claims (1)
1. gas range flashback protection device; utilize the original protector of accident extinguishing of kitchen range; in this device, increase a kind of thermocouple differential concatenation tempering holding circuit; it is characterized in that: in producing the mixing tube of tempering, installed one with protector of accident extinguishing in the burner thermocouple be the tempering thermocouple of same size, model, and the polarity of two thermocouples to connect be differential concatenation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420004073 CN2699153Y (en) | 2004-02-11 | 2004-02-11 | Backfire protecting device for gas kitchen range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420004073 CN2699153Y (en) | 2004-02-11 | 2004-02-11 | Backfire protecting device for gas kitchen range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699153Y true CN2699153Y (en) | 2005-05-11 |
Family
ID=34767362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420004073 Expired - Fee Related CN2699153Y (en) | 2004-02-11 | 2004-02-11 | Backfire protecting device for gas kitchen range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699153Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135489A (en) * | 2015-08-17 | 2015-12-09 | 浙江富迩佳电子科技有限公司 | Dual-air-source fuel gas ignition protecting device and work method thereof |
| TWI616621B (en) * | 2017-03-24 | 2018-03-01 | Chen jun nian | Anti-air burning structure of thermocouple type gas burner |
| WO2022021510A1 (en) * | 2020-07-28 | 2022-02-03 | 长青热能科技(中山)有限公司 | Temperature measurement drive device and temperature measurement drive method, and dual-air-source valve control system |
-
2004
- 2004-02-11 CN CN 200420004073 patent/CN2699153Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135489A (en) * | 2015-08-17 | 2015-12-09 | 浙江富迩佳电子科技有限公司 | Dual-air-source fuel gas ignition protecting device and work method thereof |
| CN105135489B (en) * | 2015-08-17 | 2017-08-29 | 浙江富迩佳电子科技有限公司 | A kind of double-source gas is ignited protection device and its method of work |
| TWI616621B (en) * | 2017-03-24 | 2018-03-01 | Chen jun nian | Anti-air burning structure of thermocouple type gas burner |
| WO2022021510A1 (en) * | 2020-07-28 | 2022-02-03 | 长青热能科技(中山)有限公司 | Temperature measurement drive device and temperature measurement drive method, and dual-air-source valve control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |