CN207962761U - A kind of stove heat shield and application have the kitchen range of the stove heat shield - Google Patents

Abstract

Include to have annular cover body the utility model is related to a kind of stove heat shield, the inner side edge of the cover body is less than outer side edges along height along height, it is characterised in that：In the upper surface of cover body from outer side edges along the fin for being equipped with protrusion to inner side edge edge, fin has been provided at circumferentially spaced at least two along the cover body, compared with prior art, the utility model has the advantage of can be guided from the outside to the core to make the air of cover body upper surface also to by cover body inner side edge along area encompassed, it can be effectively heated when allowing air to flow into from the outside to the core simultaneously, the invention also discloses the kitchen range that application has the heat shield, on the basis of existing gas-cooker, add stove heat shield, the heat shield has been additionally arranged at the bottom of auxiliary air supplemental tank and can effectively supplement auxiliary air, the auxiliary air supplemental tank of the cover body can be aligned setting one by one with the secondary air inlet of burner mixing chamber, and it can be opposite with the secondary air inlet of burner mixing chamber by the auxiliary air supplemental tank of cover body on mating groove.

Description

A kind of stove heat shield and application have the kitchen range of the stove heat shield

Technical field

The utility model is related to a kind of stove heat shield, the utility model, which further relates to a kind of application, the stove heat shield Kitchen range.

Background technology

With the development of city gas cause, the kitchen range industry in China kind, material, performance, sales volume etc. have compared with It is big to improve.It is important that being exactly the raising of the thermal efficiency in its performance boost.The burner of household gas range belongs to air more Formula burner.Atmospheric burner is the burner designed according to partial pre-mix mode, primary air ratio 0<α<1.Greatly Gas formula burner is divided into head and injector two parts.Injector is for the primary air needed for injection burning, burner head Effect be then combustion gas, air mixture to be uniformly distributed on fire hole, and stablize and complete burning.Gas-cooker Combustion gas is all primary energy mainly by liquefied petroleum gas, natural gas, biogas etc..By taking natural gas as an example, the day in annual China Right gas usage amount is all rising, and wherein some is exactly to be used for home-use gas.Home-use gas is largely consumed in cooking utensils On, therefore the thermal efficiency for improving cooking utensils can not only reduce consumption and the greenhouse gas emissions of combustion gas resource, while The combustion gas expenses of user can be reduced, air quality is improved.Therefore the efficiency for improving gas-cooker is always China's kitchen range row One of objective of the struggle of industry.Existing gas-cooker in actual use, is taken to set and be heated on pan bracket due to cookware, pot There is certain space interval between burner, the thermal energy that such fuel gas buring generates is other than being used for heating kettle, also phase When a part escapes in ambient enviroment, energy waste is caused；It is to solve the above-mentioned problems, domestic in recent years that there have been some collection Hot polymerization energy, " for the cumulative circle of gas-cooker and gas-cooker with it " as disclosed in Chinese patent CN203404823U, and " a kind of energy gathering type gas cooker " as disclosed in Chinese patent CN204042984U also has cumulative pan bracket in the kitchen range, Although above-mentioned such cumulative coil structures, can reduce the consumption of thermal energy, gas-cooker is typically placed to a certain extent The ventilation in kitchen is likely to result in gas-cooker combustion flame and waves, is unstable, sometimes very when wind-force is larger in external environment It can extremely cause to stop working, influence to use.In addition, there is also sliding pot, soup overflows of boiling to enter burning for existing general gas stove The burner of device, fire hole etc., phenomena such as causing gas combustion range flameout, misfire.

Invention content

A technical problem to be solved in the utility model be for the above-mentioned prior art present situation and providing a kind of can have Effect guiding air and the stove heat shield for improving combustion gas utilization rate.

Another technical problem to be solved in the utility model be for the above-mentioned prior art present situation and provide it is a kind of both With thermal-arrest cumulative action, and is conducive to the clean-burning application of combustion gas and there are the kitchen range of above-mentioned heat shield.

Technical solution is used by the utility model solves above-mentioned technical problem：The stove heat shield, includes annular The inner side edge of cover body, the cover body is less than outer side edges along height along height, it is characterised in that：In the upper surface of the cover body outside Side is along to inner side edge, along the fin for being equipped with protrusion, the fin has been provided at circumferentially spaced at least two along the cover body.

Preferably, the width of the outboard end of the fin is less than the width of inner end, and the outboard end of the fin is gradual It smoothly extends obliquely downward to the inner end of fin.The outboard end relative inner end of fin is narrow, then after flame reaches outboard end Becoming high-temperature flue gas can be flowed out by the gap between above the heat shield and the bottom of a pan, be connect with heat shield if fin outboard end is wide Contacting surface product is excessive, then the temperature of flue gas, the carbon that part does not crack completely can be reduced rapidly when high-temperature flue gas encounters fin outboard end Hydrogen particle can not continue cracking burning, cause flue gas higher；In addition, the angularly disposed contact that can enhance fin with the bottom of a pan of fin Area makes flame fully carry out heat exchange with the bottom of a pan, while can also reduce flame and scatter and disappear, and thermal energy is prevented to be radiated to kitchen space, Fin is extended by the outside side inclined sliding in inner end simultaneously, and according to fluid mechanics principle, arc is arranged so that thermal-flame In jump shape, to promote flame to hit the bottom of a pan repeatedly, thermal energy is fully utilized, in addition, the width of the inner end due to fin The width of outer fire cover main fire hole two-by-two preferably greater than in burner, the then liquid overflowed from pot body are not easy to flow to from the fin of cover body In the main fire hole of burner outer flame cover, main fire hole is prevented to be attached to or be blocked.

In order to increase the contact area of fin and cookware, each fin is arranged and whole along the cover body circumferential direction uniform intervals Body is helically radial.Meanwhile helically the soup overflow that can prevent from boiling of the fin of type enters the burner of burner, fire hole etc. Place.

It can be effectively heated when in order to allow air to flow into from the outside to the core, the fin inner hollow is to form cavity.

Preferably, the cavity of the fin is filled with heat storage.

Best, the box body of the heat storage can be accommodated by being provided in the cavity, and the box body includes bottom point, side wall And it is formed by the bottom point and the sidewall sections to accommodate the accommodation space of the heat storage.Receiving is provided in cavity The independent box body of phase-transition heat-storage body, when temperature reaches the phase transition temperature of phase-transition heat-storage body, phase-transition heat-storage cognition is undergone phase transition, by Solid becomes liquid, stores a large amount of heat, and when combusting device stove burner does not work, the temperature of phase-transition heat-storage body reduces, by liquid Become solid, heat is released from cavity, to be heated to cookware；On the other hand, fin is circumferentially provided on heat shield cover On body, flame thermal energy can be made to be fully used, prevent or reduce flame heat regulating loss, while preventing thermal energy to external radiation, it can It is simple in structure to reduce the heat-proof device of kitchen environment temperature, reliably, effectively reduce the influence to environment temperature.

Preferably, the heat storage is ceramic material or phase-transition heat-storage material.

In order to effectively supplement auxiliary air, the inner hollow of the cover body is to form cavity, and the bottom of the cover body The upwardly recessed auxiliary air supplemental tank for being formed at least two perforations, so that the air on the outside of cover body is supplemented through the auxiliary air Slot flows into the inner side edge of cover body along area encompassed.Since the heat shield has certain height, can effectively protect fire Flame, moreover it is possible to avoid the flame vibration caused by wind, wild effect.

Further, the auxiliary air supplemental tank is along the circumferentially-spaced arrangement of cover body, and each auxiliary air supplemental tank For radial setting.

The utility model provides a kind of kitchen range using above-mentioned stove heat shield to solve second technical problem, wraps Include stove panel and burner, the burner includes mixing chamber and the secondary air that is arranged on the mixing chamber Mouthful, the heat shield is shelved on along the burner is surrounded on stove panel with its inner side edge, it is characterised in that：It is described heat-insulated The auxiliary air supplemental tank of cover cover body is aligned setting one by one with the secondary air inlet.

In order to enable the auxiliary air supplemental tank of heat shield body is aligned setting, the heat shield cover with secondary air inlet one by one The bottom of body is also formed at least two mating grooves, and is arranged with auxiliary air supplemental tank interval, and the stove panel On be then provided with locating piece corresponding with the mating groove, be limited in the mating groove by locating piece, and ensure described in The auxiliary air supplemental tank of heat shield cover body is aligned setting one by one with the secondary air inlet.

Compared with prior art, the utility model has the advantage of in order to make the air of cover body upper surface also can be by from export-oriented Guide interiorly to by cover body inner side edge along area encompassed, while when air being allowed to flow into from the outside to the core can by effectively plus Heat, for the fin inner hollow to form cavity, cavity is provided with heat storage, and the invention also discloses applications to have this heat-insulated The kitchen range of cover on the basis of existing gas-cooker, add stove heat shield, which has been additionally arranged at the bottom of auxiliary air supplemental tank Auxiliary air can be effectively supplemented, the auxiliary air supplemental tank of the cover body can be one by one aligned with the secondary air inlet of burner mixing chamber Setting, and simultaneously on stove panel under the cooperation of locating piece and cover body mating groove, once form the locating piece of heat shield cover body Inserting can be opposite with the secondary air inlet of burner mixing chamber by the auxiliary air supplemental tank of cover body on mating groove, and it is fixed to have Level is true, and filling into for auxiliary air is effectively performed, and improves combustion gas utilization rate.

Description of the drawings

Fig. 1 is the positive structure schematic of heat shield in the utility model embodiment 1；

Fig. 2 is the structure schematic diagram of heat shield in the utility model embodiment 1；

Fig. 3 is the structural schematic diagram of heat shield in the utility model embodiment 1；

Fig. 4 be Fig. 3 in A-A to structural schematic diagram；

Fig. 5 is that heat shield is placed on the stereoscopic schematic diagram on kitchen range in the utility model embodiment 1；

Fig. 6 is the sectional view of B-B direction in Fig. 5；

Fig. 7 is the decomposition texture schematic diagram of Fig. 5.

Fig. 8 is the structural schematic diagram (omitting fin) of heat shield in the utility model embodiment 3.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing embodiment.

Embodiment 1

As illustrated in fig. 1 and 2, the stove heat shield in the present embodiment includes cover body 1, and the inner side edge of cover body 1 is low along 11 height In outer side edges along 12 height, preferably to obstruct the heat of stove panel 6, the inner side edge of cover body 1 has been extended inwardly to form along 11 The platform 5 that can be fitted with stove panel 6, upper port is big to be formed, the small bowl-type cover body 1 of lower port.In order to make 1 upper table of cover body The air in face can also be guided from the outside to the core to by 1 inner side edge of cover body along area encompassed, as the secondary of burner Supplement air, and also to increase heat exchange area, the inner side edge of the cover body 1 along 11 height less than outer side edges along 12 height, And in the fin 2 that the upper surface of cover body 1 is equipped with protrusion along 12 to inner side edge from outer side edges along 11, circumferential direction of the fin 2 along cover body 1 At least two are arranged at intervals with, the number is also according to being set, preferably 8~16, meanwhile, fin 2 is in addition to guiding Outside the effect of air, the inner hollow of fin 2 is provided with heat storage, for this purpose, air is guided into form cavity 20 in cavity 20 The inner side edge of cover body 1 along 11 when can make air " the more walking the more hot "；Heat storage such as phase-transition heat-storage body 10, the material of phase-transition heat-storage body 10 It is of fine quality to be selected as anhydrous sodium chloride.Fin 2 on cover body 1 is high-efficiency heat conduction material, can heat be imported uniform phase-transition heat-storage rapidly In body 10, or the heat that phase-transition heat-storage body 10 is discharged imports, and cavity 20 is heat accumulation component, can form effective energy saving dress It sets, while cavity 20 plays good thermal insulation function, prevents the loss of heat, and the phase-transition heat-storage body of fin cavity 20 The heat transfer of 10 energy reinforced transformation heat storages 10, phase-transition heat-storage body 10 become fluid storage heat by solid, become solid by liquid Heat is discharged, when temperature reaches the phase transition temperature of phase-transition heat-storage body 10, phase-transition heat-storage body 10 can be undergone phase transition, and be become by solid Liquid stores a large amount of heat, and when 8 burner 81 of burner does not work, the temperature of phase-transition heat-storage body 10 reduces, and is become by liquid Solid, heat is released from cavity 20, to be heated to cookware, while after phase-transition heat-storage body 10 becomes liquid in order to prevent It flows into hollow cavity 20, cavity 20 divides including bottom point, side wall and by bottom and sidewall sections are formed and stored with accommodating The accommodation space of hot body 10.

In addition, the width of the inner end 21 of fin 2>The width of outboard end 22, preferably, the width of the inner end 21 of fin 2 Degree is more than the width of outer fire cover main fire hole 86 two-by-two in burner 8, and the outboard end 22 of fin 2 be gradually smoothly tilted towards it is downward Extend to the inner end 21 of fin 2, the direction of rotation of each fin 2 can be can also be counterclockwise, the outboard end of fin 2 clockwise 22 relative inner ends 21 are narrow, then becoming high-temperature flue gas after flame arrival outboard end 22 can be by between above the heat shield and the bottom of a pan Gap is flowed out, and excessive with heat shield contact area if fin 2 is wide, high-temperature flue gas can be fast when encountering 2 outboard end 22 of fin Speed reduces the temperature of flue gas, and the hydrocarbon particle that part does not crack completely can not continue cracking burning, cause flue gas higher；In addition, The angularly disposed contact area that can enhance fin 2 and the bottom of a pan clockwise or counterclockwise of fin 2, make flame fully with the bottom of a pan into Row heat exchange, while flame can also be reduced and scattered and disappeared, prevent thermal energy from being radiated to kitchen space, while fin 2 is outside by inner end 21 Extend to 22 inclined sliding of side, according to fluid mechanics principle, arc is arranged so that thermal-flame is in jump shape, to promote fire Flame hits the bottom of a pan repeatedly, and thermal energy is fully utilized.Certain fin 2 can also be to extend with being of a straight line type.

As shown in Fig. 5 and Fig. 7, it is positioned over the schematic diagram on kitchen range for the heat shield, which includes stove panel 6, pot branch Frame 7 and burner 8, burner 8 include mainly burner 81, mixing chamber 82, inner fire cover 83 and outer fire cover 84, and heat shield passes through cover Four mating grooves 4 of 1 bottom of body are located in the limit of the realization and stove panel 6 of the locating piece 61 on stove panel 6, heat shield Platform 5 is just held on the mixing chamber in burner 8, and pan bracket 7 includes annular ring, and in the circumferential equal of the annular ring There are four stabilizer blade, the annular rings can be shelved on 2 outboard end of fin, 22 face of heat shield for even distribution, and stabilizer blade can just fall within fin Between 2.The pan bracket 7 turns upside down and can use, due to the design of heat shield fin 2 so that any pan bracket 7 is all Can on be fixed on the heat shield, therefore, increase the use scope of the heat shield.

Also, as shown in fig. 6, in order to realize good heat build-up effect and meet in ring fire auxiliary air supplement, every The inner side edge of hot cover cover body 1 is along the height less than the main fire hole of outer fire cover in burner 8 and higher than the secondary air in mixing chamber 82 Mouth 85, and 1 inner side edge of cover body of the heat-collecting and energy-saving cover of the stove in kitchen range 6 is more than in burner 8 along 11 diameters outside mixing chamber The difference of edge diameter is 13~21mm, i.e., 1 inner side edge of cover body of stove heat shield is along 11 and the outer peripheral diameter of mixing chamber in burner 8 To gap delta be 6.5~10.5mm, as shown in figure 4, in the burner 8 outer fire cover main fire hole axis and horizontal plane angle β, and Radially cutting obtains cutting surface curve to cover body 1, crosses the curve and takes up an official post one one points of tangent line and the angle α of horizontal plane, and β is more than α.

Simultaneously in order to preferably fill into auxiliary air, there are four the auxiliary airs that Open Side Down to mend for the bottom setting of cover body 1 Fill slot 3, the auxiliary air supplemental tank 3 be in inner wide and outer narrow structure, the auxiliary air supplemental tank 3 of heat shield cover body 1 with it is secondary into Air port 85 is aligned setting one by one, is limited in mating groove 4 by locating piece 61, and ensures the auxiliary air of heat shield cover body 1 Supplemental tank 3 with secondary air inlet 85 be aligned setting one by one, have accurate positioning, filling into for auxiliary air is effectively performed, carries High combustion gas utilization rate.

Embodiment 2

It is essentially identical with 1 structure of embodiment, difference lies in：The helically type and radially along the week of cover body 1 of each fin 2 It is arranged to uniform intervals, the contact area that can not only increase fin 2 and cookware is arranged in this, meanwhile, helically the fin 2 of type can have Effect stores the overflow for the soup that boils, and prevents the burner into burner, fire hole etc..

Embodiment 3

As shown in figure 8, it is essentially identical with 1 structure of embodiment, difference lies in：Cover body 1 is square.

Claims (9)

1. a kind of stove heat shield includes annular cover body (1), the inner side edge of the cover body (1) is highly less than outside along (11) Edge (12) height, it is characterised in that：It is equipped with from outer side edges along (11) along (12) to inner side edge in the upper surface of the cover body (1) The fin (2) of protrusion, the fin (2) have been provided at circumferentially spaced at least two along the cover body (1).

2. stove heat shield according to claim 1, it is characterised in that the width of the outboard end (22) of the fin (2) is small Width in inner end (21), and the outboard end (22) of the fin (2) is gradually smoothly extended obliquely downward to fin (2) Inner end (21).

3. stove heat shield according to claim 1 or 2, it is characterised in that each fin (2) is along the cover body (1) week It is simultaneously whole helically radial to uniform intervals setting.

4. stove heat shield according to claim 1, it is characterised in that fin (2) inner hollow is formed with cavity (20)。

5. stove heat shield according to claim 4, it is characterised in that be filled with accumulation of heat in the cavity (20) of the fin Body (10).

6. stove heat shield according to claim 4, it is characterised in that the inner hollow of the cover body (1) is to form cavity (20), and the upwardly recessed auxiliary air supplemental tank (3) for being formed at least two perforations in the bottom of the cover body (1), so as to Air on the outside of cover body (1) flows into the inner side edge of cover body along (11) area encompassed through the auxiliary air supplemental tank (3).

7. stove heat shield according to claim 6, it is characterised in that the auxiliary air supplemental tank (3) is along cover body (1) circumferentially-spaced arrangement, and each auxiliary air supplemental tank (3) is radial is arranged.

8. a kind of kitchen range using the stove heat shield of claim 6 or 7 comprising stove panel (6) and burner (8), the burner (8) includes the secondary air inlet (85) of mixing chamber (82) and setting on the mixing chamber (82), The heat shield surrounds the burner (8) along (11) with its inner side edge and is shelved on stove panel (6), it is characterised in that： The auxiliary air supplemental tank (3) of the heat shield cover body (1) is aligned setting one by one with the secondary air inlet (85).

9. kitchen range according to claim 8, it is characterised in that：The bottom of the heat shield cover body (1) is also formed at least Two mating grooves (4), and with the auxiliary air supplemental tank (3) be spaced be arranged, and be then provided on the stove panel (6) with The corresponding locating piece (61) of the mating groove (4), is limited in the mating groove (4) by locating piece (61), and ensures institute The auxiliary air supplemental tank for stating heat shield cover body (1) is aligned setting one by one with the secondary air inlet (85).