CN2541762Y

CN2541762Y - Energy saving device of gas cooker

Info

Publication number: CN2541762Y
Application number: CN 02229300
Authority: CN
Inventors: 刘文斌
Original assignee: Huazhong University of Science and Technology
Current assignee: Huazhong University of Science and Technology
Priority date: 2002-04-30
Filing date: 2002-04-30
Publication date: 2003-03-26
Anticipated expiration: 2012-04-30

Abstract

The utility model discloses an energy-saving device used in a gas kitchen range, comprising a supporting body which is a combustion room that is made of heat insulating material, the upper portion of the combustion room is provided with a heat collector which is provided with fins on the lower surface. The combustion room is tubular, and the best height of the room is between 70 and 170 mm in order to achieve good heating effect. The inner surface of the combustion room is provided with a reflective coating or a reflective film, and the energy-saving effect can be increased when the fins arranged on the lower surface is in an involute state. The utility model can solve the contradiction between heat efficiency and complete combustion, meanwhile the heat loss caused by flame radiation can be reduced, the heating area of heated objects can be increased, and excess air capacity is greatly reduced, further the heating rate of the kitchen range is increased because that the calorific intensity is increased, thereby achieving the effects of energy-saving, high-performance, and low pollution. The utility model can be used for a household gas kitchen range, and also can be used for a commercial kitchen range, because that calorific efficiency of the commercial kitchen range is low, the energy-saving effect is more excellent by utilizing the utility model.

Description

The gas-cooker energy saver

Technical field

The utility model relates to a kind of energy saver, specifically, and a kind of gas-cooker energy saver.

Background technology

The existing gas-cooker thermal efficiency is generally lower.Trace it to its cause and mainly show the following aspects, burning is carried out in open spaces, there is part Fire Radiation heat to be lost, this combustion system often needs very big excess air again for completing combustion, must cause gas fume after burning to take away a large amount of heats like this, the heating surface of heating object is less relatively simultaneously, can not satisfy the needs of heat exchange, make smog discharge temperature higher, usually heating surface is contacted with the flame high-temperature region as much as possible in order to improve the thermal efficiency, but be easy to like this cause imperfect combustion and cause the carbon monoxide in the flue gas sharply to rise, so the raising of the thermal efficiency and completing combustion always become a pair of implacable contradiction, because this existence to contradiction, we can't fundamentally reduce excess air and reduce smog discharge temperature, making flue gas take away heat loss becomes a kind of certainty, and this heat loss often accounts for more than 90% of whole heat loss.In view of this, the heat loss of gas-cooker mainly is that three factors cause, the one, and the Fire Radiation heat loss, the 2nd, heating surface is little, and the 3rd, excess air is excessive, and latter two factors is prevailing.

Although many technology about gas cooker energy saving are arranged, the problem, particularly excess air of above-mentioned three aspects of all failing to solve simultaneously and the problem of heating surface in the prior art.Most of just Fire Radiation controlled or carried out waste heat recovery, but the flame that fuel gas buring forms is non-luminous flame that radiations heat energy is very little, and its grade of heat recovery too poor efficiency is not high, the actual effect of this class technical scheme is very limited.The technical scheme that has is considered the increase heat exchange area, but do not consider the control excess air, even excess air decreases owing to do not propose the notion of combustion chamber, the flame that burning produces still contacts with heat-transfer surface, thereby can't fundamentally reduce excess air, as the utility patent application of application number 94214987.4 a kind of " energy-saving gas cooker supports with cooker ", it comprises the supporting support body of tubular and places the impeller of tubular supporting support body top, be on the impeller that turbine is radial evenly to be provided with 12～36 upper surfaces and can to fit fully with the cooker heating surface, cross section is the heat absorption fin of arc.It has proposed the use fin increases heat exchange area, but owing to there is above-mentioned factor, is similar between fin and the heating object simultaneously to contact, and thermal resistance can't reach good effect too greatly.Be not inconsistent with existing Theory of Combustion as for wherein said " the heat absorption fin can make combustion gas fully contact with oxygen, and it is more abundant to burn ", combustion gas contacts with fin must cause a large amount of imperfect combustions.

Goal of the invention

The purpose of this utility model is to provide a kind of gas-cooker energy saver that can overcome above-mentioned defective, this device can solve the contradiction between the thermal efficiency and the completing combustion, reduces the Fire Radiation heat loss simultaneously, increases the heating surface area of heating object, also reduces excess air as much as possible.And because the raising of calorific intensity, the rate of heat addition of kitchen range also can improve.

For achieving the above object, the utility model gas-cooker energy saver comprises supporting mass, and this supporting mass is the combustion chamber that heat-insulating material is made, and the top of this combustion chamber is provided with the heat collector of with ribbing of lower surface.

The height of above-mentioned combustion chamber better effects if between 70-170mm.

As improvement of the present utility model, described combustion chamber is a tubular.

As further improvement of the utility model, the inner surface of described combustion chamber is provided with reflectance coating or reflectance coating; Described fin becomes involute shape at the lower surface of heat collector.

The utility model can solve the contradiction between the thermal efficiency and the completing combustion, reduces the Fire Radiation heat loss simultaneously, increases the heating surface area of heating object, also reduces excess air as much as possible.And because the raising of calorific intensity, the rate of heat addition of kitchen range also can improve.Reach energy-conservation, efficient, oligosaprobic triple function.This device is applicable to household gas range, also applicable to commerce with combustion gas Chinese meal cooking stove because the thermal efficiency of commercial cooking stove is very low, it will be better using the energy-saving effect that this device produces.The utility model should adopt the rational structure size according to the situation of gas range, can fundamentally solve contradiction between the thermal efficiency and the completing combustion so that best technique effect.Need transform gas-cooker simultaneously, that is to say and need install the special gas-cooker of design for this reason, the structure that should change kitchen range changes the structural parameters and the operational factor of burner again to adapt to this device, obtains optimum efficiency to guarantee this device.

Description of drawings

Fig. 1 is the structural representation of the utility model gas-cooker with two kinds of specific embodiment of energy saver; (a) and (b).

Fig. 2 is the structural representation of heat collector among Fig. 1.

The specific embodiment

As shown in Figure 1, combustion chamber 3 that this device is made by a heat-insulating material and the heat collector 2 that places lower surface on the combustion chamber 3 to have fin 5 are formed, and combustion chamber 3 is played supporting mass simultaneously.Can be fixedly connected between combustion chamber 3 and the heat collector 2 or heat collector 2 directly is positioned on the combustion chamber 3, the latter is more easy.Said apparatus is placed on the gas range 4, will heat again with pot 1 and place on the heat collector promptly with using.Combustion chamber 3 is used to control the outside heat loss through radiation of flame, simultaneously by the inlet area of regulating auxiliary air and the size that the combustion chamber height is controlled excess air, and the height of combustion chamber must satisfy combustion gas energy completing combustion under this excess air, and its height effect between 70-170mm is better.The combustion chamber is made by certain light heat-insulating material, and inner surface can add reflectance coating or coating.Heat collector 2 is high temperature resistant by certain, the metal material of good heat conductivity is made, its lower surface arrangement has some for strengthening the fin that the heat convection area becomes shape such as involute-type, its upper surface is shapes such as the plane that adapts with form of pot bottom or the awl end, the concrete size of heat collector can form a series at the size of pot, in use can change.

Fig. 2 is the plane of heat collector fin 5, and fin becomes involute-type, makes heat exchange more abundant with the stroke that strengthens flue gas, and fin also can become other shape.As Fig. 2 (b) and (c), the cross section of heat collector is certain shape that adapts with the bottom of a pan, and size forms a kind of series.

Claims

1. a gas-cooker energy saver comprises supporting mass, it is characterized in that: described supporting mass is the combustion chamber (3) that heat-insulating material is made, and the top of combustion chamber (3) is provided with the heat collector (2) of lower surface with ribbing (5).

2. gas-cooker energy saver according to claim 1 is characterized in that: the height of described combustion chamber (3) is between 70-170mm.

3. gas-cooker energy saver according to claim 1 and 2 is characterized in that: described combustion chamber (3) are tubular.

4. gas-cooker energy saver according to claim 3 is characterized in that: the inner surface of described combustion chamber (3) is provided with reflectance coating or reflectance coating.

5. gas-cooker energy saver according to claim 4 is characterized in that: described fin (5) becomes involute shape at the lower surface of heat collector (2).