EA030094B1 - Solar coffee/tea maker and cooking appliances - Google Patents

Abstract

Solar heat collector, especially an evacuated-tube solar heat collector, filled with first heat storage and conducting material transfers the solar heat to a heat insulated utensil through second heat conducting and transferring material for cooking foods and making coffee/tea.

Description

The invention relates to the field of application of solar heat, in particular to kitchen cooking appliances in a solar-powered device, which is connected to a solar heater filled with a material that accumulates and conducts heat.

Initial data

Among all the sources of energy that exist on earth, solar energy is the most common, abundant and evenly distributed source of energy. Solar energy is very easy to use. It is available every day, everywhere and to everyone.

Among all types of human activity with energy consumption, cooking food and beverages is the most frequently carried out activity that has the longest history. Every person, under any conditions, needs to prepare food every day.

This is a very interesting and extremely important topic - the use of solar energy for cooking. There is a lot of effort involved in studying it (refer to existing patents).

The amount of solar energy per unit area of land is small. The intensity of solar radiation varies in direction from north to south and from morning to evening. It depends on the weather and changes over the course of four seasons, so the development of economically viable solar-powered kitchen appliances has always been a challenge and requires further research.

Because of these difficulties, areas for receiving sunlight on some solar-powered kitchen appliances have been made as much as possible. But it is difficult to provide heat insulation of the heat obtained. Some solar-powered kitchen appliances track and focus sunlight using an expensive automated system and require additional power for it to work. Some solar-powered kitchen appliances also use materials for heat storage. Materials can be expensive and may not be so easy to get.

This description includes historical experience, combines new technologies for heating water with solar energy, and develops a set of economical and practical solar-powered kitchen appliances.

Summary of Invention

The purpose of this description is to improve existing technologies and provide a set of economical and highly efficient solar-powered kitchen appliances that are easy to manufacture and use. To overcome the difficulties in using solar energy for cooking, the invention takes the following steps:

use a vacuum solar heater for optimal heat accumulation; fill the evacuated solar heater with accumulating and heat-conducting material to preserve heat and ensure its long-term and constant action for cooking;

a light reflector focuses ambient light on kitchen appliances;

the sundial indicates the direction of light, and an adjustable and rotating fixing frame support allows to obtain the highest level of solar energy;

if solar power is not enough, the power supply is provided by a backup power source. Moreover, solar-powered kitchen appliances also provide backup equipment or equipment for storing and storing energy with a low electricity price for cooking during a power failure. The data below is a detailed description of this invention.

In accordance with one aspect of this description, a solar-powered kitchen kit is provided, consisting of a solar heater filled with heat-accumulating and heat-conducting material, in which solar heat is collected, stored and transferred from; a thermally insulated solar-powered device for cooking food in it, with thermal connection with a means of heat transfer from the solar heater; heat transfer means connects said solar heater with said device and transfers heat from the solar heater to the thermally insulated device; and necessary auxiliary equipment.

A solar heater is a solar heater with a vacuum tube or a group of modular solar heaters with a vacuum tube installed in some form, for example in parallel in a row, in the form of a fully or partially cone-shaped column. Such a solar heater may have an open end, which is included in a thermally insulated device for cooking on solar energy, for heat transfer; or have two open ends; one of these open ends is included in a thermally insulated solar cooking device; or have two open ends; one of these open ends is connected to a solar-cooking device with said heat transfer means; such a solar heater is partially filled with an accumulating and heat-conducting material, and a tank is arranged in it to heat water or cooking oil; A solar heater with a tube of vacuum tempered glass and a protective transparent coating are provided for security purposes.

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The heat-accumulating and heat-conducting material may be solid, such as ore, metal, quartz sand, basalt sand, salt or soil; or liquid, for example, water, low, cooking oil or heat-conducting grease; or a material that accumulates the heat of a chemical reaction, such as CaO plus H ₂ O; or a combination of two or more heat-accumulating and heat-conducting materials, such as rapeseed oil poured into quartz sand.

Said insulated solar energy cooking device with a thermal insulation coating may be a thermally insulated device; or a cooking device located in a heat-insulated container; or an evacuated device made of glass, metal, synthetic or ceramic; or a cooking device located in a heat-insulated container filled with accumulating and heat-conducting material; or a heat-insulated device with electric power supply with devices and systems for measuring, indicating and controlling operational parameters; or a thermally insulated device with a power supply with a conduit around the inner wall of the dish from the top and almost to the bottom, with a connecting element at the top for receiving the steam line from the solar heater, one end of the said steam line is inserted into the hot water tank and not immersed in the heated water in the solar water tank.

The heat transfer means may be a cooling tube with or without conductive seams, one end of which is located in the solar heater and the other end in a thermally insulated device for cooking on solar energy; a water pipe (including water vapor), one end of which is immersed in a water tank inside the solar heater, and the other is inserted into a thermally insulated solar cooking device; a cooking oil channel, one end of which is immersed in cooking oil in a reservoir inside the solar heater, and the other end is inserted into a heat-insulated solar cooking device; the solar heat conductor in the solar cooking device prepares the food and becomes part of such a device, for example water (including water vapor) or edible oil; heat accumulating and heat conducting material in a solar heater; heat-accumulating and heat-conducting material in a solar heater, which is connected to or inserted into a heat-insulated cooking device; the accumulating and heat-conducting material in a solar heater, which is connected or inserted into a heat-insulated container in which the cooking device is located; a heat conductor, such as a copper rod or a wall of a metal device.

The necessary auxiliary equipment can be a fixing frame support, which forms and maintains each part of the solar-powered kitchen appliances in the proper position, and also allows adjustment of the angle of inclination of the solar heater to sunlight and the direction of the solar heater to sunlight, such as a swivel base; The necessary accessories include a reflective object that focuses the surrounding sunlight onto the solar heater; a sundial, such as a cone-shaped rod attached perpendicular to the solar heater, to indicate the angle of sunlight; a bag or membrane to wrap or cover food in a solar-powered electric cooker, such as a metal, paper or plastic bag and membrane.

The auxiliary equipment includes an electric heating element with power supply, including a measuring and indicator device for determining the operating characteristics and parameters of solar-powered kitchen appliances, such as calculating time, temperature, pressure, humidity; and a system for controlling the characteristics and parameters of solar-powered kitchen equipment, such as timing, temperature, pressure, humidity. Auxiliary equipment includes a suitcase in which solar-powered kitchen appliances are placed and packaged, while being portable solar-powered kitchen appliances.

In accordance with another aspect of this description, a kettle for coffee / tea is provided, including a kettle for coffee / tea, in which coffee or tea is prepared with water and heated solar energy, with a lid and handle, and a container for coffee and tea inside the kettle , with a perforated container for coffee in the upper part and a perforated mesh for tea with a removable lid at the bottom of the kettle; hot water dispenser in the lid; a conduit connected to the water sprayer passing through the cover and hidden in it and in the handle; one end of the water conduit connected to the connecting element in the lower part of the handle; the connecting element is necessary to receive hot water from the solar heater.

In the role of a teapot for coffee / tea, a flask of a thermos made of stainless steel, glass or synthetic material can serve, and a perforated coffee container and a tea net can be connected to stand and take out along the axis of the rack.

In accordance with another aspect of this disclosure, a solar-powered coffee / tea making machine is provided, including a coffee / tea kettle with a lid and handle, a coffee and tea container inside the coffee / tea kettle, with a perforated coffee container at the top. parts and perforated mesh for tea with a removable lid at the bottom of the kettle; spray

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hot water in the lid; a tube connected to a water sprayer and hidden in the lid and handle; in the tube there is a connecting element at the bottom of the handle for receiving a tube for hot water from the solar heater; a sealed tank in which water is heated by solar energy; a hot water conduit inserted into a sealed container with water, heated solar energy, one end of which is immersed in heated water in the tank, the other is connected to the connecting element in the coffee / tea handle; and necessary auxiliary equipment.

According to one aspect of the tank with water, heated by solar energy, is a solar heater with a vacuum tube; the tank with water, heated by solar energy, is a water heater located in a solar heater with a vacuum tube filled with a material that accumulates and conducts heat; a kettle for coffee / tea is a flask of a thermos made of stainless steel or synthetic material; perforated coffee container and tea net are connected by a stand and can be removed along the stand axis.

In accordance with another aspect of this disclosure, a solar / electric coffee maker is provided that is mainly heated by solar energy as well as electric energy as a backup power source, and includes a drip-type electric coffee maker with a cold water tank and a coffee maker. ; heated tube heated by electrical energy; first non-return valve; hot water spray; hot water boiling tube that continues the boiling tube heated by electrical energy that conducts hot water into the drip zone; the boiling hot water tube is provided with an overflow pipe located above the first non-return valve and the boiling tube heated by electrical energy but lower than the atomizer; a second non-return valve to prevent hot water from returning to the solar heater, one end of which is connected to the end of the by-pass nozzle and the other to the connecting element in the electric drip-type coffee maker via a third tube; the connecting element is necessary for receiving a heating pipe with hot water from a solar heater; the third non-return valve is located in the hot water heating tube between the overflow pipe and the tube heated by electrical energy in order to prevent hot water from the solar heater from entering the tube heated by electrical energy; a sealed tank of water, heated by solar energy, in which solar heat is accumulated and stored with the help of a solar heater that heats water directly or indirectly; The connecting hot water tube (the fourth tube) enters the specified sealed tank of water heated by solar energy, one end of which is immersed in water heated by solar energy in the tank, the other is connected to the tube of the connecting element in an electric drip type coffee maker. The tank with water, heated by solar energy, is a solar heater with a vacuum tube; The tank with water heated by solar energy is a container located in a solar heater with a vacuum tube filled with a material that accumulates and conducts heat.

Other aspects and characteristics of this description will be clear to experts in this field after reviewing the following description of specific embodiments of the invention in combination with accompanying drawings.

Brief Description of the Drawings

In the figures showing the example implementation of the present invention,

FIG. 1 is a schematic diagram depicting a solar-powered coffee / tea making machine in vertical section;

FIG. 2 is a schematic diagram depicting a solar / electric coffee maker in

vertical section;

FIG. 3 depicts a set of typical solar heaters schematically shown in vertical section;

FIG. 4 is a schematic diagram of an alternative appliance from a solar-powered kitchen appliance, shown in vertical section;

FIG. 5 schematically shows a set of solar-powered kitchen appliances in a vertical section that use a cooling tube as a means of heat transfer;

FIG. 6 schematically shows an alternative instrument from kitchen appliances for solar energy in a vertical section, which transfers solar heat through a direct connection between graphite in a solar heater and graphite under vessel 661;

FIG. 7 is a schematic diagram of a set of solar energy devices, including numerous fixed solar heaters and devices shown in perspective.

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Detailed description

FIG. 1 is a schematic diagram of a typical coffee / tea making machine 100, shown in vertical section.

The solar-powered coffee / tea making machine 100 includes a solar-powered coffee / tea maker 160, a solar heater 110 and a water line for connecting them 171. The solar heater 110 is filled with a storage material 120 that accumulates and conducts heat.

The solar-powered coffee / tea kettle 160 is a liquid reservoir with a lid 162. In this case, it is a vacuum glass bottle 161. But stainless steel and synthetic material are also often used. The coffee / tea containers 166 are located in the kettle 160. In the coffee / tea container 166 there is the bottom of the tea net 167 with a removable lid 1671. The top of the coffee / tea container 166 is a perforated coffee tank 168. The rack 169 supports the capacity for coffee 168 and capacity for tea 167. All three parts of the capacity for coffee, capacity for tea and its lids can be removed along axis 169. Based on the preparation requirements, a capacity for coffee, tea or both can be left in the teapot 160 or removed from it .

The hot water sprayer 164 is located in the center of the cover 162. The hot water pipe 163 passes through the cover 164 and the handle 165 of the kettle 160 and is hidden in them. One end of the hot water conduit 163 is connected to the spray gun 164. Its other end is connected to the connecting element 170, which is the lower part of the handle 165. The connecting element 170 is designed to receive the hot water conduit 171 from the solar heater 110.

The solar heater 110 may be any type of solar heater that can heat the material that accumulates and conducts heat 120 to temperatures above the boiling point of water. In this case, the solar heater 110 is a solar heater with a vacuum tube. It can also be a group of modular solar heaters with a vacuum tube of a certain shape, for example, parallel to a row or fully or partially of a cone-shaped column, as in the examples shown in FIG. 7. In the solar heater 110 there is a removable part 114 with two openings 1141 and 1142. The opening 1141 is intended for the passage of the power cord 151 and air exchange. The hot water pipe 171 passes through the opening 1142 and then through the opening 1311.

The evacuated tube solar heaters 110 have a transparent outer layer 11 and an inner layer 112. The space between them is sealed. The inner layer 112 has a heat absorbing coating, not shown in FIG. 1. In the solar heater with a vacuum tube 110, the same material is present, and the same treatment is performed as in the solar heater with a vacuum tube used to heat water with solar energy. But the vacuum tube of the solar heater 110 used for cooking with solar energy has a larger diameter and a shorter length compared to a conventional vacuum tube for water heated by solar energy.

A vacuum tube solar heater 110 is made of glass. If the glass tube breaks, the glass pieces are dangerous to the user. Therefore, for security reasons, the solar heater 110 is provided with a transparent plastic shell (not shown in FIG. 1). If the solar heater 110 is a group of vacuum tubes installed in a row, a transparent plastic coating can cover each tube, or a plastic protective cover can cover the entire row. But a plastic protective case can reduce the effectiveness of the solar heater 110. Therefore, a solar heater with a vacuum tube of tempered glass would be the best solution. A solar heater with a vacuum tube 110 is filled with storage material 120 and heat-conducting material. Such material 120 in this case is salt or artificial sand required to store and transfer solar heat to a water container 130. In fact, it can be used as a heat storage material and heat conductive material various types of materials. For example, it can be solid materials, such as salt, sand, graphite and turf. These can be liquid materials, such as water and oil, including cooking oil and petroleum products. It can also be a material with reversible phases, such as paraffin. You can also use a combination of different materials, such as soybean oil and quartz sand.

The water tank 130 is a cylindrical container located inside the solar heater 110 above the accumulating and heat conducting material 120. It is made of stainless steel. The cooking device 130 has a removable portion 131 with an opening 1311, a stopper inserted into the cooking device 130. The device has a diameter close to the internal diameter of the evacuated tube 110, but not exceeding it. The corrugated tank wall structure 133 from top to bottom provides a gap and an overlay for the air exchange and power cable 151. Moreover, it allows the smallest adjustable diameter of the container 130. The cooking device 130 also includes a removable handle 134 on the inner wall to remove the device 130 from the sun. heater 110.

The removable part 114 covers the top of the solar heater 110. It has two holes 1141 and 1142. The first hole 1141 connects to the indicated slot and passage for air exchange and

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power cord. The second hole 1142 follows the hole 1311 in the stopper 131 of the container 130.

The powered electrical heating element 150 is an electric heating element of very low power. It is located under the water tank 130 in the heat storage and heat conducting material 120. The power cord 151 has a very high resistance to temperature, connects the electric heating element to the mains plug 152 outside the solar heater 110 through a path formed by the corrugated structure 133 on the walls of the vessel 130. Electric heating element 150 may include systems for measuring, displaying and controlling the performance and parameters of solar-powered kitchen appliances, such as timing, temperature tours, pressure, humidity, etc. They are not shown in FIG. 1. A powered electrical heating element can be removed from a set of kitchen appliances. In this case, a set of solar-powered kitchen appliances still represents complete kitchen appliances that use solar heat as an energy source. FIG. 3 shows solar heaters without an electrical heating element.

Connecting conduit for hot water 171 passes into the specified container for water heated by solar energy through openings 1142 and 1311. One end is immersed below the water level 135 in a container with heated water 130. The other end is connected to the connecting element of the conduit

170 in the specified handle 165 teapot for coffee / tea 160.

When sunlight 101 hits solar heater 110, it absorbs heat from the sun and stores it in sand 120. When water tank 130 is inserted into solar heater 110 and cold water is poured in there, solar heat is transferred to a tank of water heated by solar energy 130 through the inner wall 112, the heated sand 120, and heats the water. The end of the 1711 water conduit

171 is submerged below the water level 135 in the water tank 130. The water tank 130 is sealed. When water is brought to a boil, the water vapor collected in the upper space of the tank 130 pushes the hot water into the conduits 171 and 163. Then the hot water is dispersed evenly and drips onto the coffee grounds in the coffee container 168 through the spray 164. The hot water takes the coffee essence and carries it down into the coffee container 161. The coffee brewing process is completed. A similar process is used to make tea. In this case, the tea or tea bag is placed in a tea net 167.

You can also replace the water tank using the evacuated tube 110 itself. In this case, the water tank 130, the stopper for it 131 and the heat storage and storage material 120 inside the solar heater 110 are missing. Removable part 114 should make of the heater 110 sealed container. When solar energy heats the water in the evacuated tube 110 to a boil, the water vapor inside it squeezes the water up into the water line 171 and 163 for making coffee. In this case, the speed of making coffee and its amount depends on the real time of the solar energy. It may be unstable and unstable. If we use a water tank 130 located in an evacuated tube 160 filled with heat accumulating and transmitting material 120, we can continuously and stably use the stored heat for making coffee and tea at any time.

If there is not enough solar energy for the cooking process, the water capacity inside the solar heater 110 heats the electric element 150. Since the tube 110 has very good thermal insulation, it requires little electrical energy. In this case, the electricity has a very low efficiency in the process of making coffee.

Based on the above idea of a solar-powered coffee / tea making machine and FIG. 1, it is easy to make an electric / solar coffee maker by making minor changes to an electric drip-type coffee maker or by retrofitting an existing electric drip-type coffee maker. FIG. 2 schematically shows a coffee maker 200 on electric / solar energy in a vertical section. To simplify the description, the solar heater 110, including the accumulating and heat-conducting material 120, the solar-powered hot-water boiler 130 and the connecting conduit 171, are the same as in FIG. one.

Electric coffee maker 260 has its own cold water tank 261, electrically heated tube 262, hot water pipe 263, hot water sprayer 264, perforated coffee tank 265, coffee kettle 266 and non-return valve 267. These parts are the same as any electric coffee maker drip type. Compared to conventional drip-type electric coffee makers, the main changes in the coffee maker on electric / solar energy are as follows.

The hot water tube 263 extends the electrically heated tube 262 and leads water from the reservoir 261 to the drip region 265. This hot water tube 263 has an overflow port 268 located above the first check valve 267 and the electrically heated tube 262, but below the spray gun 264.

A second check valve 270 has been added to prevent hot water from getting back into the solar heater 110. One end is connected to the end of the bypass port 268, and the other is connected to the connecting element 269 in the electric drip type coffee maker 260 through the third pipe 272. The connecting element 269 is intended to receive tubes for hot water 171 from a water reservoir - 5 030094

ra on solar energy 130.

The third check valve 273 is located in the hot water tube 263 between the nozzle 268 and the electrically heated tube 262 to prevent water from the solar heater from getting into the electrically heated tube 162.

A connecting conduit for hot water 171 enters said sealed water tank heated by solar energy through openings 1142 and 1311. Its one end is submerged below the water level 135 in the heated water tank 130. The other end is connected to the connecting element of the conduit 169 in an electric coffee maker drip type 260.

When sunlight 101 hits solar heater 110, it absorbs heat from the sun and stores it in heat-accumulating and heat-retaining material 120. When water tank 130 is placed in solar heater 110 and cold water is poured into it, solar heat is transferred to a solar-powered water tank. 130 through the inner wall 112, the accumulating and heat-conducting material 120, and heats the water. The end of 1711 of the conduit 171 is submerged under water in the reservoir 130. The water reservoir 130 is sealed. When water is heated to a boil, water vapor collected at the top of the tank pushes hot water into conduit 171 and 263. Then hot water is sprayed and evenly drips onto the coffee grounds in the coffee tank 165 through the sprayer 264. The hot water takes the coffee essence and carries her coffee maker 266. The process of making coffee is completed. During operation of the solar heater, an additional check valve 273 prevents water from entering the electrically heated tube 262.

If there is not enough solar energy, plug the electrically heated tube 162 with a stopper. Cold water from 261 flows through the first check valve 267 and is heated by the electrically heated tube 262 until boiling. Bubbles in boiling water push hot water to the dispenser 264 for making coffee through the hot water tube 263. The process is the same as in any electric drip-type coffee maker.

During operation of the solar heater 110, the check valve 273 prevents water from entering the electrically heated tube 262. During operation of the electric drip type 260 coffee maker, an additional check valve 272 prevents water from entering the solar heater 110. If necessary, two heat sources can work simultaneously.

In accordance with FIG. 1 empty tube of the solar heater 110 can replace the hot water tank 130 to heat the water when making coffee.

FIG. 3 A set of typical solar heaters are schematically shown in vertical section.

FIG. 3A is a schematic vertical sectional view of a solar heater with a vacuum tube filled with a liquid storage and conductive heating material, such as water or oil. In some cases, water can also be a means of heat transfer for cooking.

FIG. 3B is a schematic vertical sectional view of a solar heater with a vacuum tube filled with solid material that accumulates and conducts heat, such as vein rock or turf.

FIG. 3C is a schematic vertical sectional view of a solar heater with a vacuum tube filled with sand with a cooling tube or a heat conductor as a means of heat transfer.

FIG. 3Ό schematically depicts a vertical section of a solar heater with a vacuum tube filled with a combination of solid and liquid heat-accumulating and heat-conducting material, for example, quartz sand and cooking oil.

FIG. 3E schematically shows a vertical section of a group of modular solar heaters with a vacuum tube mounted vertically parallel in a row.

FIG. 3P is a schematic vertical sectional view of a group of modular solar heaters with a vacuum tube mounted horizontally in parallel in a row.

When installing solar-powered kitchen appliances, not only these types of solar heaters can be used, other types and combinations of them can also be chosen and used.

FIG. 4 schematically shows a device from alternative kitchen appliances on solar energy (a double boiler) in vertical section.

Again, in order to simplify the description, the solar heater 110, including the filled storage material and heat-conducting material 120, the hot water boiler 130 and the connecting conduit 171 are the same as in FIG. one.

The device 460 is now a steam cooker with a thermally insulated lid 462. The side wall of the device 460 is thermally insulated with an insulating cover 461. Three layers of the steam basket 468 are placed in the device 460 above the bottom 464. Food is prepared using water vapor. The steam tube 463 extends inside the device from the top and almost to the bottom along the inner wall of the double boiler 460. The tube 463 is connected to the connecting element 465 in the heat-insulating coating 461.

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One end 1711 of the conduit 171 is connected to the connecting element 465. The other end 1712 is inserted into the hot water tank 130 above the water level 135.

When sunlight 101 hits solar heater 110, it absorbs heat from the sun and stores it in heat-accumulating and conductive material 120. When water tank 130 is inserted into solar heater 110 and cold water is poured into it, solar heat is transferred to solar heater 130 through the inner wall 112, and the accumulating and heat-conducting material 120 and heats the water to a boil. The water vapor generated in reservoir 130 goes up to device 460 through cooking pipes 171, 463 and 467 in device 460.

FIG. 5 schematically depicts a device from kitchen appliances on solar energy 500 in vertical section, which uses a cooling tube as a means of heat transfer.

Solar heater 510 is a group of 5 modular solar heaters with a vacuum tube, which are fixed in a row. The number of modular evacuated tubes in this case is 5, but it can be changed in accordance with the requirements for preparation. The solar heater 510 is filled with turf 520 in a tapering tube 516 and vacuum tubes 511, 512, 513, 514 and 515.

The device 561 is located in a thermal insulation coating 562. It is provided with a double-layer glass cover 563 with an opening 5631. In the bottom wall of the device 561 there is a connecting element 565 for receiving a cooling tube 530 from the solar heater 510.

One end of the tube 530 is designed to be inserted into the tapered tube 516. The other end 531 is inserted into the connecting element 565 in the device 561. Both ends of the tapered tube 516 are closed and provided with thermal insulation.

During operation of the solar heater, the evacuated tubes absorb heat and retain it in the sod in the solar heater 510. The cooling tube 530 transfers solar heat to the cooking device 561. After that, the device 561 is removed from the heat-insulated coating and is replaced by a heat-insulating mass. It must maintain a high operating temperature of the solar-powered cooking system before the next cooking process.

It schematically depicts a device from alternative solar-powered kitchen appliances 600 in vertical section, which transfers heat by a direct connection between graphite 620 in a solar heater 610 and graphite under device 661.

The solar heater 610 is a vacuum tube solar heater. Solar heater 610 is filled with graphite.

A kitchen device 661 with a lid 663 is located in a heat insulating coating 662 with a lid 664. Between the bottom of the device 661 and the coating 662 is a space 665. It is also filled with graphite. The end of the evacuated tube is inserted into space 665. Graphite 620 in solar heater 610 and graphite in space 665 are closely related.

During operation of the solar heater, the accumulated solar heat is transferred from graphite through an evacuated tube to graphite in space 665. Solar heat prepares food in the kitchen unit 661. In some cases, a heat conductor may be added between the solar heater 610 and the gap 665 to provide faster heat transfer. It can also be a cooling tube.

Usually evacuated tubes are mounted in a row for the simultaneous preparation of several dishes.

FIG. 7 schematically shows a set of kitchen appliances 700 in perspective and in vertical section, respectively.

Five solar heaters with evacuated tubes 701, 702, 703, 704 and 705, mounted in parallel in a row, are shown in perspective. Five kitchen appliances, including coffee / tea making machines, 160, 260, 460, 560 and 660 are located on one side of the solar heater 710 and are shown in vertical section. Each solar heater is filled with a different material that accumulates and conducts heat and is differently connected to the device, as shown in FIG. 1-6. To limit the paper size, the connections between the solar heaters and the devices in FIG. 7 not shown.

A fixing frame support 706 places and maintains five solar heaters at appropriate locations and conditions. Mobile leg 707 allows the angle of inclination of the solar heater 710 to be adjusted in relation to sunlight. Four wheels 741, 742, 743 and 744 are mounted on the four lower corners of the frame support 706 to adjust the direction of the solar heater 710 (743 and 744 are not shown in FIG. 7). A sundial (not shown in Fig. 7) is a cone-shaped rod. It is mounted perpendicular to the solar heater 710 to indicate the angle of incidence of sunlight.

The light-reflecting part (not shown in Fig. 7) is located under the evacuated tube to focus the ambient sunlight onto the solar heater. When sunlight hits the solar heater 710, cooking in each device is exactly the same as the cooking process described in FIG. 1-6. This treatment is no longer repeated.

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Based on the detailed description of the examples, other changes will be discovered by those skilled in the art, and thus, the invention is described in detail in the claims.

Claims (7)

CLAIM 1. A solar-powered kitchen appliance containing a heater to collect and preserve the heat energy of the sun; the first solid material that accumulates and conducts heat to save and conduct thermal energy of the sun, placed inside a heater that serves to heat the specified material that accumulates and transfers heat to a temperature above the boiling point of water; insulated dishes located outside the heater; a second heat transmitting and conductive means thermally connecting said heater with said cookware; wherein said second heat transmitting and conductive means comprises sealed tank of solar energy containing liquid, and located in the heater, and having a removable part with a hole; and liquid pipeline passing through the specified hole and having first and second ends, with the first specified end inserted into the specified sealed tank, and the second end is connected to the specified dish with thermal insulation. 2. The device according to claim 1, wherein said heater includes an electric heating element with a power source. 3. The device according to claim 1 or 2, wherein said heater is selected from the group: a heater with a vacuum tube; many vacuum heaters; a variety of modular heaters with evacuated tubes; vacuum tube heater with one open end; vacuum tube heater with two open ends; Heater with one open end inserted into a dish with thermal insulation on solar energy. 4. The device according to claim 1 or 2, in which the first solid material that accumulates and conducts heat is selected from the group: solid material that accumulates the heat of a chemical reaction; solid material with reversible phase transformations; ore, metal; sand; salt; priming; quartz sand; basalt sand; calcium oxide (CaO); turf; graphite or a mixture of the above materials. 5. The device according to claim 1 or 2, in which the means for transferring heat are selected from the group: the first solid material that accumulates and solar heat conducting material inside the dish; cooling tube; cooling tube with conductive ribs; metal conductor; copper conductor; aluminum conductor; butter; cooking fat; rapeseed oil; heat conductor; a sealed water tank located in the solar collector, a pipeline with first and second ends, the first end is inserted into a sealed tank and located above the water level, the second end is inserted into the dishes; sealed liquid reservoir located in the heater; liquid pipe with first and second ends; the first end is inserted into the sealed reservoir and immersed in the liquid; and the second end is inserted into the thermally insulated device, the liquid is selected from the group of: water and oil; combination of the above elements. 6. The device according to claim 1 or 2, in which the specified dishes selected from the group: - 8 030094 coffee maker; an electric drip-type coffee maker with a check valve for directing the flow of water heated by solar heat and a water line connecting the drip-type coffee maker to a heater; tea machine; perforated steam cooking basket; wire mesh roaster for frying and drying food; round deep frying pan with a convex bottom / pan in which food and water are put out for stewing or boiling. 7. The device according to claim 1 or 2, further comprising one of the following devices selected from the group: a fixing frame support containing one or more parts that allow the heater to adjust the angle of inclination with respect to sunlight; electric heater with measurement and control system; transparent plastic protective cover protecting the specified heater. - 9 030094