Background technology
Existing various gas-cooker all is that air nozzle keeps flat, and combustion gas at first laterally sprays in one section long horizontal air flue, laterally sprays burning in igniter cap circlewise then.There is following weak point in this class gas-cooker:
1, must settle air input adjusting device in horizontal air flue import department.The air inlet amount can not be transferred too much or too small, otherwise it is bad to burn.Because combustion gas pressure fluctuates in the use, the air inlet amount is difficult to transfer suitablely and at every moment is complementary with combustion gas pressure, so fully completing combustion of combustion gas.
2, igniter cap circlewise causes the area of the outside radiations heat energy of flame big, often surpasses the area of cooker bottom surface, causes heat energy utilization rate only about 70%.
3, because flame is in the igniter cap gap for a long time, cause igniter cap, air flue temperature higher, corrosion knot carbon easily, and the knot carbon obstructing airway that comes off leaks combustion gas, and therefore dangerous accident easily takes place.In addition, insect crawls into and stops air flue, valve place easily, causes the dangerous accident that takes place because of obstruction equally.
4, between kitchen range face and the igniter cap space is arranged, greasy dirt, foreign material and the water capacity easily enter in the kitchen range, pollute, and clean difficulty.
Summary of the invention
The purpose of this utility model provides a kind of gas-cooker with vertical air flue, accomplishes the abundant completing combustion of combustion gas, heat energy utilization rate height, and security performance is good, difficult to be polluted.
The utility model includes the kitchen range shell; gas control valve; point bigger device and flame-out protection device; improvements are that kitchen range shell central authorities are equipped with cylindrical shape storage oxygen storehouse; storage oxygen storehouse base plate central authorities are equipped with the air nozzle of setting; the import of air nozzle lower end is connected in the gas control valve outlet through conduit; have on the base plate of storage oxygen storehouse that equally distributed air enters the hole more than 4 or 4; in have the isolating cylinder of vertical air flue to be nested in top, storage oxygen storehouse; the dividing plate that through hole is arranged in being separated with between the two; igniting pin and blowout protection pin are housed on the isolating cylinder top board; the igniting pin; the blowout protection pin with lead respectively with igniter; flame-out protection device links to each other, and the taper igniter cap that is evenly equipped with fumarole on the top board is enclosed within on the isolating cylinder.In order to seal the kitchen range face, can also with in through hole is arranged the taper shielding cover on the taper igniter cap, its bottom surface is close on the kitchen range face of kitchen range shell.
Operation principle is as follows: combustion gas sprays up from air nozzle, according to the little principle of hydrodynamics high speed air-flow pressure, the air that combustion gas will drive in the storage oxygen storehouse passes through vertical air flue together, enter in the gas oxygen mixing bunker that constitutes by taper igniter cap inner chamber and mix, in the fumarole of taper igniter cap, spray at last, forming the injecting type burning from 5 millimeters eminences of taper igniter cap.
Compared with the prior art, the utility model has following characteristics:
1, the abundant completing combustion of combustion gas, energy savings.
Because the air on the base plate of storage oxygen storehouse enters the hole greatly and many, oxygen content is big in the storage oxygen storehouse, can fully satisfy the burning needs, so the abundant completing combustion of combustion gas, energy savings.
2, heat utilization efficiency is up to more than 90%.
Because combustion gas is all in the burning of cooker bottom center place injecting type, heat is concentrated and is few toward external radiation, so heat utilization efficiency is up to more than 90%.Through test, same boiled 10 kilograms water, the utility model fast about 5 minutes than existing cooker.Use combustion gas more than 30% less.
3, safe and reliable, stopped the air flue clogging.
Because flame is be 5 millimeters away from taper igniter cap more than, taper igniter cap and vertical air flue place all do not have high temperature, can not tie carbon and air flue obstruction accident takes place.In addition, any insect and foreign material all can't stop in vertical air flue, all will fall kitchen range automatically and go outward.In a word, the air flue clogging can not take place, safe and reliable.
4, sanitation and hygiene prolong kitchen range service life.
Because the kitchen range face sealed by the taper protective cover, so greasy dirt, foreign material and water can not enter in the kitchen range, and the greasy dirt, foreign material and the water that drop on the smooth kitchen range face are easy to be eliminated, and therefore can keep sanitation and hygiene in the kitchen range.Add materials such as etchant gas, salt solution and be difficult to enter in the kitchen range, thereby can prolong kitchen range service life.