CN2435015Y - Energy-saving quick-boiling kettle - Google Patents

Abstract

The utility model relates to an energy-saving quick water heating kettle, which can greatly improve heat efficiency and obviously save time. The utility model adopts a convex housing bottom, the area of a kettle bottom is increased, a hearth is formed on the lower part of the kettle bottom, and the heat absorbing quantity of the kettle bottom can be increased; the insides of smoke pipes which is in circular arrangement between the kettle bottom and a kettle top are provided with fins which are in axial arrangement; the heat resistance of smoke is decreased, and the heat transfer capacity of the smoke pipes is increased; the temperature of the smoke exhaust of the smoke pipes is decreased to 130DEG. C to 140DEG. C; compared with the heat efficiency of the existing kettle, the heat efficiency of the utility model can be improved by 50 percents, and the time can be saved by 1/3. The increased cost of the utility model can be recovered from the saved fuel cost in one year.

Description

Quick-heating and energy-saving kettle

The utility model relates to a kind ofly can increase substantially the thermal efficiency and remarkable time saving quick-heating and energy-saving kettle.

Uses at present with the kettle of fuel as thermal source, all be that flame heats at the bottom of to the kettle that is the plane.Because of the area at the bottom of the kettle less, and the flameless combustion that the kitchen range that use coal gas or liquefied gas all adopt fuel and air to be pre-mixed, what obtain is non-luminous flame, the flame radiation ability a little less than, the radiant heat transfer amount of flame at the bottom of to kettle is less, and the flue-gas temperature of therefore leaving at the bottom of the kettle is higher.Leave the high-temperature flue gas at the bottom of the kettle, mixing the back temperature on the one hand owing to heat radiation with cold air descends very fast, on the other hand because the constraint of the flue that do not circulate, flue gas flow rate is lower and can not be close to Hu Bi it is heated, therefore flue gas is to the heating poor effect of Hu Bi, not only the thermal efficiency of the kettle that uses at present only is 58%-60%, and required time of boiled water flask is longer.

The purpose of this utility model provides a kind of quick-heating and energy-saving kettle, thereby it not only can improve thermal efficiency fuel saving significantly, and can save the required time of boiled water flask.

The purpose of this utility model is achieved in that and adopts at the bottom of the convex kettle, not only increased the area at the bottom of the kettle, and formed burner hearth in the kettle bottom, flame is in the burner hearth internal combustion, thereby increased the radiant heat transfer amount of flame at the bottom of to kettle.Between at the bottom of the convex kettle and kettle top, be provided with the smoke pipe of annular array, the fin of axially-aligned is arranged in the smoke pipe.Flame to the convex kettle at the bottom of the heating after, flue gas enters smoke pipe smoothly under the effect of the self induced air power that burner hearth and smoke pipe height form, it is low not only to have avoided mixing because of flue gas heat radiation with cold air the cigarette temperature drop that is directed at, but also has improved cigarette speed, has strengthened the heat transfer of flue gas to water.In the process that flue gas heats water by smoke pipe, main thermal resistance is in fume side.The fin of axially-aligned is set in the smoke pipe, greatly reduces the thermal resistance of fume side, the heat output of smoke pipe is increased greatly.

Owing to taked such scheme, the exhaust gas temperature of smoke pipe is very low, and the thermal efficiency of kettle increases substantially, and the required time of boiled water flask significantly reduces.The utility model structure is uncomplicated, and manufacture difficulty is little, and the expense that is increased can be regained from the fuel cost of saving in less than 1 year, the today in that energy prices more and more go up, has higher utility.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the vertical section structural map of the utility model embodiment.

Fig. 2 is the A-A cutaway view of Fig. 1.

Among the figure at the bottom of the 1. convex kettles; 2. burner hearth; 3. smoke pipe; 4. fin; 5. Hu Ding

Flame in burner hearth (2) to the convex kettle at the bottom of after the side of (1) and the top heating, under the self induced air power effect of the height formation of burner hearth (2) and smoke pipe (3), flue gas enters and is arranged on the smoke pipe (3) between (1) and Hu Ding (5) at the bottom of the convex kettle.Owing to be provided with the fin (4) of axially-aligned in the smoke pipe (3), the thermal resistance of fume side reduces greatly, flue gas increases greatly to the heat output of the outer water of smoke pipe (3), the smoke evacuation mean temperature of smoke pipe (3) (considering season, flame size, water temperature factor such as raise gradually in the process of heating up water) only is 130 ℃-140 ℃.

The thermal efficiency of the utility model embodiment can reach 90%-91%, and the thermal efficiency that has kettle now has been improved 50%, and promptly the comparable existing kettle of fuel the utility model of equal number burns 50% boiling water more, and boiled water flask required time has saved 1/3rd.

Claims (2)

1, a kind of quick-heating and energy-saving kettle is at the bottom of the planar shaped kettle, in the kettle formed of figure cylindricality Hu Bi and Hu Ding, is characterized in that: adopt at the bottom of the convex kettle, at the bottom of the convex kettle and the smoke pipe of annular array is arranged between the kettle top, have in the smoke pipe to strengthen the fin that conducts heat.

2, quick-heating and energy-saving kettle according to claim 1 is characterized in that: the fin in the smoke pipe is an axially-aligned.