CN201533753U

CN201533753U - Vacuum pan and vacuum water heater special for solar cooker

Info

Publication number: CN201533753U
Application number: CN2009202425354U
Authority: CN
Inventors: 唐国屏
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-13
Filing date: 2009-10-13
Publication date: 2010-07-28
Anticipated expiration: 2019-10-13

Abstract

Disclosed are a vacuum pan and a vacuum water heater special for a solar cooker, and the vacuum pan and the vacuum water heater can slow down the loss of heat energy in the pan, and improve the solar absorption efficiency. A pan body and a cover body of the vacuum pan are both of double-layer structures, the vacuum water heater is a double-layer closed body without a cover, and is only provided with a spout for feeding and discharging water. The outer layers of the double-layer structures are both made from cooker glass which is transparent and resists high temperature, the inner layers of the double-layer structures are made from high-temperature resistance cooker glass, ceramic or metal materials, and the space between the outer layers and the inner layers is vacuumized. Outer walls of the inner layers are coated with heat radiation reflective coatings, solar selective absorption coatings and solar reduction and reflective layers, and a plurality of support points are arranged between the outer layers and the inner layer so as to balance the pressure difference between the inner and the outer layers and the middle vacuum layers. The vacuum pan special for the solar cooker can be used for steaming, boiling and roasting, and the vacuum water heater for the solar cooker can be used for boiling water.

Description

The special-purpose vacuum kettle of solar cooker, vacuum kettle

Technical field

The utility model relates to the special cooker of solar energy optical-thermal application.

Background technology

Solar cooker does not have bigger popularization and application now, still rests on the primary stage basically.One of its major reason is exactly: the heat loss of solar cooker cooker is big, the solar cooker cooker is not high to the absorption efficiency of sunlight heat.

At present, because the common family kitchen cooker of a large amount of employings of solar cooker cooker, solar cooker is when heating it, and along with the rising of kettle temperature, the thermal loss of pot body outer surface can be offset the part pot sunlight heat that body absorbed thereupon increasing; Particularly when kettle temperature during soon near boiling point, the thermal loss of the pot body outer surface pot sunlight heat that body absorbed greatly that can dissipate causes kettle temperature to reach the required time of boiling point and prolongs greatly, even can not reach boiling point.

In autumn and winter season, when environment temperature was low, the very fast meeting of thermal loss of pot surface reached balance with the solar energy that the solar cooker that the bottom of a pan is absorbed converges, so that kettle temperature can not continue to rise to boiling point and lose use value.

In the morning and afternoon, when solar radiation is more weak; In windy environment, because the influence of air-cooled effect, the solar energy that the thermal loss of pot surface also can converge with the solar cooker that the bottom of a pan is absorbed reaches balance, makes kettle temperature can not continue to rise to boiling and forfeiture use value.

In the cloudy date, because solar radiation instability, solar cooker is awave to heating of pot body, because the bigger thermal loss in pot surface causes kettle temperature also to present awave variation, kettle temperature can not continue to rise and the value of sunlight heat is had a greatly reduced quality.

In addition, there is bigger reflection loss in common family kitchen cooker to sunlight heat, can not absorb fully it, causes sunlight heat to fail to make full use of.

Because the influence of these unfavorable factors, solar cooker is average annual effectively to use fate and every day effectively to use the period to reduce greatly.

The utility model content

When being used for solar cooker in order to overcome the family kitchen cooker, the loss of heated body surface heat is bigger, the sunlight heat utilization ratio is not high, the utility model provides the special-purpose vacuum kettle of a kind of solar cooker, vacuum kettle, they can not only effectively slow down the loss of pot interior heat, and can improve the utilization ratio of sunlight heat, shorten the time that kettle temperature rises to boiling point.

The technical scheme that its technical problem that solves the utility model adopts is:

The pot body of the special-purpose vacuum kettle of solar cooker and pot cover, the special-purpose vacuum kettle of solar cooker all adopt double-decker, with the blocking-up conductive heat loss; Double-deck hollow space vacuumizes, the convection heat losses who causes with the cross-ventilation that reduces hollow space; The outer wall of double-decker internal layer adopts the vacuum magnetic-control sputtering coating technique to be coated with heat radiation reflectance coating, solar selective absorbing coating and sunshine anti-reflection layer, with the radiation heat loss that reduces heat in the pot, improve the absorption efficiency of solar heat energy and reduce reflectivity to sunshine; Double-deck skin is made of transparent resistant to elevated temperatures cooker glass, arrives at internal layer so that solar energy sees through skin, and then is effectively absorbed by the pot body; Internal layer is made of resistant to elevated temperatures cooker glass, pottery or metal material.Be provided with some strong points between the double-deck ectonexine structure, with the pressure differential between balance endothecium structure and layer structure and middle vacuum layer.The double-decker that the special-purpose vacuum kettle of solar cooker is a sealing, uncovered only has a Hu Zui to communicate with the external world, with the turnover of supplying water.

The beneficial effects of the utility model are:

Blocked the path that heat scatters and disappears in the pot, improved the absorption efficiency of solar energy, and then improved the thermal efficiency, shortened cooking time, made the further practicability of application of sunlight heat.

Description of drawings

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

Fig. 1 is the vertical section structural map of the special-purpose vacuum kettle embodiment of the utility model solar cooker

Fig. 2 is the vertical section structural map of the special-purpose vacuum kettle of the utility model solar cooker embodiment

Fig. 3 is the vertical section double-decker partial enlarged drawing of the special-purpose vacuum kettle of the utility model solar cooker, special-purpose vacuum kettle embodiment

1. layer structures among the figure, 2. endothecium structure, 3. vacuum layer, 4. heat radiation reflectance coating, 5. solar selective absorbing coating, 6. sunshine anti-reflection layer, 7. the vacuum layer strong point, 8. feet, 9. vacuum kettle handle, 10. vacuum pot cover, 11. vacuum jug mouths, 12. vacuum jug bale handles

The specific embodiment

In Fig. 1, Fig. 2 and Fig. 3, be vacuum layer 3 between the layer structure 1 of double seal structure and the endothecium structure 2, the thickness of this vacuum layer is about 0.5-2mm, the outer wall of internal layer adopts the vacuum magnetic-control sputtering coating technique to be coated with heat radiation reflectance coating 4, solar selective absorbing coating 5 and sunshine anti-reflection layer 6, with the thermal radiation loss that reduces heat in the pot, improve the absorption efficiency of sunlight heat and reduce reflectivity to sunlight heat.Layer structure is made of transparent resistant to elevated temperatures cooker glass, arrives at internal layer so that solar energy sees through skin, and internal layer is made of resistant to elevated temperatures cooker glass, pottery or metal material;

For the pressure differential between balance double-decker ectonexine and the middle vacuum layer, be provided with some strong points 7 between ectonexine, these strong points are made of material high temperature resistant and that heat conductivility is bad, as: asbestos lining, glass ... Deng, to reduce the loss of heat in the pot.

In order to improve the vacuum of the middle vacuum layer of double-decker, also be filled with an amount of getter in the vacuum layer.

For the ease of placing and preventing that the outer surface of glass outer is scratched at the bottom of the bottom of a pan, the kettle, reduce the transmissivity of sunshine, at the bottom of the bottom of a pan and kettle, be provided with three feets 8 respectively.

The special-purpose vacuum kettle of solar cooker is the obturator of pair of lamina structure, uncovered, and the turnover that only has a kettle mouth 11 to supply water, as shown in Figure 2.

Claims

1. the special-purpose vacuum kettle of a solar cooker, vacuum kettle partly is made up of pot cover and pot body two, it is characterized in that: the pot body and the pot cover of vacuum kettle all adopt double-decker, double-deck hollow space vacuumizes, the outer wall of double-decker internal layer is coated with heat radiation reflectance coating, solar selective absorbing coating and sunshine anti-reflection layer, be provided with some strong points between the double-deck ectonexine structure, with the pressure differential between balance endothecium structure and layer structure and middle vacuum layer.

2. the special-purpose vacuum kettle of a solar cooker, the vacuum kettle is an enclosed construction, uncovered, only there is a Hu Zui to communicate with the external world, it is characterized in that: the vacuum kettle adopts double-decker, and double-deck hollow space vacuumizes, and the outer wall of double-decker internal layer is coated with heat radiation reflectance coating, solar selective absorbing coating and sunshine anti-reflection layer, be provided with some strong points between the double-deck ectonexine structure, with the pressure differential between balance endothecium structure and layer structure and middle vacuum layer.

3. the special-purpose vacuum kettle of solar cooker according to claim 1 is characterized in that: double-deck layer structure adopts transparent resistant to elevated temperatures cooker glass to constitute, and endothecium structure is made of resistant to elevated temperatures cooker glass, pottery or metal material.

4. the special-purpose vacuum kettle of solar cooker according to claim 2 is characterized in that: double-deck layer structure adopts transparent resistant to elevated temperatures cooker glass to constitute, and endothecium structure is made of resistant to elevated temperatures cooker glass, pottery or metal material.