CN215523787U - Green kitchen central heat collecting system - Google Patents
Green kitchen central heat collecting system Download PDFInfo
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- CN215523787U CN215523787U CN202121764152.0U CN202121764152U CN215523787U CN 215523787 U CN215523787 U CN 215523787U CN 202121764152 U CN202121764152 U CN 202121764152U CN 215523787 U CN215523787 U CN 215523787U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The invention discloses a central heat collecting system of a green kitchen, which comprises a Fresnel transmission light-gathering heat collecting unit and a heat conducting oil working medium natural circulation unit, phase change heat storage energy release unit and heat pipe kitchen, fei nieer transmission spotlight thermal-arrest unit includes fei nieer transmission spotlight ware, fei nieer transmission spotlight ware inboard is provided with transparent vacuum tube, the vacuum tube inboard is provided with leads oil pipe, hot oil-conducting working medium natural circulation unit includes the first transmission pipe with lead oil pipe cyclic connection and the second transmission pipe with heat pipe kitchen cyclic connection, be provided with the governing valve on first transmission pipe and/or the second transmission pipe, be connected with heat exchange coil on the first transmission pipe, be provided with the energy release coil pipe on the second transmission pipe, phase change heat storage energy release unit is including setting up the phase change heat storage case outside heat exchange coil pipe and the energy release coil pipe, be provided with phase change heat storage material in the phase change heat storage case. The invention can meet the daily cooking requirement of families and has the advantages of environmental protection, convenience, rapidness, contribution to popularization and the like.
Description
Technical Field
The invention relates to the technical field of kitchen cooking, in particular to a central heat collection system of a green kitchen.
Background
Since the 21 st century, the world has entered a new energy era. Solar energy is used as a clean energy source which can be continuously utilized, and is gradually utilized by various industries at present. According to the estimation, the annual solar radiation energy received by the land surface of China is about 50 multiplied by 1018kJ, the total solar annual radiation amount in all parts of the country reaches 335-837 kJ/cm2A, the solar energy resource is abundant, and the solar energy will be the key energy for various human energy consumption activities in the future.
At present, the following problems exist in most of the mainstream stoves in China: firstly, an open combustion mode is adopted, in the open combustion process, the energy transfer heating efficiency is only about 30%, and most of other energy is dissipated to the environment in flame flow; secondly, the traditional kitchen range has potential safety hazards, the heat loss is increased due to incomplete combustion of the fuel gas, and toxic and harmful gases are generated; thirdly, the traditional heating furnace has low heat efficiency and pollutes the environment, and is easy to cause safety accidents such as explosion, fire and the like.
Solar cookers appearing in recent years have the defects of large volume, low efficiency and the like, are difficult to popularize in urban kitchens, and have limitations on specific cooking modes. The utility model discloses a solar energy collection system based on directional light transmission, including the solar energy collection system who is 2019.04.23, CN208779735U for the grant bulletin date, fresnel lens can realize the adjustment to the sunlight azimuth under the effect of horizontal rotation platform, under the effect of rotatory mounting, can realize the adjustment to sunlight altitude angle, with fresnel lens's spotlight focus and directional regulator's focus coincidence, carry out spotlight and transmission to sunlight through directional regulator and light pipe. This technical scheme not only occupation space is big, the culinary art mode has the limitation, need track the sunlight through a plurality of mechanical mechanism moreover, still need a lot of conversions.
Therefore, how to comprehensively solve the above problems becomes a focus of attention. The current kitchen thermal revolution is imminent, and a central kitchen heat collecting system which is environment-friendly, pollution-free, high in efficiency and safety is urgently needed in the market.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a central heat collection system for a green kitchen, which solves the technical problems that the existing solar cooker not only occupies a large space and is limited in cooking mode, but also needs to track sunlight through a plurality of mechanical mechanisms and needs to be converted for many times.
The technical scheme of the invention is realized as follows: the central heat collection system for the green kitchen comprises a Fresnel transmission light-gathering heat collection unit, the Fresnel transmission light-gathering heat collection unit is connected with a heat pipe stove through a heat oil guide working medium natural circulation unit and a phase change heat storage energy storage and release unit, the Fresnel transmission light-gathering heat collection unit comprises a Fresnel transmission light-gathering device, a transparent vacuum pipe is arranged at the inner side of the Fresnel transmission light-gathering device, an oil guide pipe is arranged at the inner side of the vacuum pipe, the heat conduction oil working medium natural circulation unit comprises a first transmission pipe and a second transmission pipe, wherein the first transmission pipe is in circulation connection with the oil conduction pipe, the second transmission pipe is in circulation connection with the heat pipe stove, the first transmission pipe and/or the second transmission pipe are/is provided with an adjusting valve, the first transmission pipe is connected with a heat exchange coil pipe, the second transmission pipe is provided with an energy release coil pipe, the phase-change heat storage energy storage and release unit comprises a phase-change heat storage box arranged outside the heat exchange coil and the energy release coil, and a phase-change heat storage material is arranged in the phase-change heat storage box. According to the invention, sunlight is not required to be tracked, when the sunlight transmits to the Fresnel transmission type condenser, each section of oblique angle of the continuous irregular sawtooth in the Fresnel transmission type condenser refracts the sunlight and collects the sunlight to the vacuum tube, the sunlight reaches the oil guide tube through the vacuum tube, the heat conduction oil in the oil guide tube starts to be heated, the heat collection and conversion are completed, and the phenomenon of heat stress concentration is avoided. The first transmission pipe of the heat conduction oil working medium natural circulation unit is led out from the Fresnel transmission light-gathering heat collector and is directly connected with the phase change heat storage energy storage and release unit, and natural circulation is realized by utilizing the density difference and the gravitational potential energy of the heated heat conduction oil without additional power connection. The tail end of the heat pipe stove is connected with the phase change heat storage box by adopting a second transmission pipe, and the physical properties of the second transmission pipe are utilized, such as: pipe diameter, length etc to can realize temperature gradient control, can satisfy the required different temperatures of different culinary art tasks, the second transmission pipe lug connection cooks the heat pipe kitchen of the below of device, reaches the maximum heating efficiency.
Furthermore, the cross section of the Fresnel transmission type condenser is arc-shaped, and the cross section of the vacuum tube is circular or semicircular.
Further, the radial center line of the Fresnel transmission type condenser and the axis of the vacuum pipe or/and the oil guide pipe are in the same vertical plane.
Further, a heat conduction metal layer and a heat conduction metal protection layer are arranged on the oil guide pipe.
Furthermore, the heat-conducting metal layer and the heat-conducting metal protective layer are connected through an I-shaped or honeycombed structure.
Further, a heat absorption coating is arranged on the upper layer of the heat conduction metal layer.
Furthermore, the heat insulation coating is coated on the pipe section of the oil guide pipe extending out of the Fresnel transmission type condenser, the first transmission pipe and the second transmission pipe.
Furthermore, the joint of the first transmission pipe and the oil guide pipe or/and the heat exchange coil and the joint of the second transmission pipe and the energy release coil or/and the heat pipe stove are provided with sealing device oil slingers and are filled with sealing materials.
Further, the heat exchange coil and the energy release coil are both spiral pipes made of red copper, and the phase change heat storage material is an amorphous phase change heat storage material.
Furthermore, a temperature display and an inner cavity material state strip are arranged outside the phase change heat storage box, and a temperature sensor connected with the temperature display is arranged in the phase change heat storage box.
The phase-change heat storage energy storage and release unit adopts an STRM-P series amorphous phase-change heat storage material which is mainly powdery, and is filled in a phase-change heat accumulator in the using process, the phase-change temperature of the series phase-change material can reach 710 ℃ at most, and the phase-change temperature of the series phase-change material in the project is within 220-307 ℃, so that the requirement on the temperature of a system can be met, and the working efficiency of the product is ensured. The tail end of the heat pipe stove is connected with the phase change heat storage energy storage and release unit by adopting a separable heat pipe, and the physical characteristics of the heat pipe are utilized, such as: the pipe diameter, the length and the like of the heat pipe and the designed thermal switch, so that the temperature gradient control can be realized, different temperatures required by different cooking tasks can be met, and the heat pipe is directly connected with a heat supply system below the cooking device to achieve the maximum heat supply efficiency. The cooking bench heat supply is concentrated, the cooking utensils can be selected at will according to the family demand, and the system can satisfy the daily culinary art demand of family, has advantages such as green, convenient and fast, do benefit to the popularization.
According to the Fresnel condenser used in the invention, under the condition that sunlight is not required to be tracked, each section of oblique angle of the continuous irregular sawtooth in the Fresnel transmission condenser refracts the solar light and collects the solar light onto the heat absorption coating on the inner side of the vacuum tube, so that the heat conduction metal layer obtains high-temperature heat energy, the obtained high-temperature heat energy is transferred to heat conduction oil along the heat conduction metal layer, the heat conduction oil obtains high-temperature heat energy, and the obtained high-temperature heat energy circularly flows in the transmission tube under the action of gravity and the action of temperature difference. The phase-change heat storage box can timely store heat brought by heat conduction oil, the heat is released to food materials through the energy-releasing coil pipe and the heat pipe stove, the heat pipe stove can be maintained to work for a period of time by utilizing the stored heat even when no sunlight irradiates, the absorption and utilization of solar energy are organically combined, and the solar energy is effectively utilized.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic structural diagram of the Fresnel transmission light-gathering and heat-collecting unit in FIG. 1;
FIG. 3 is a working schematic diagram of a Fresnel transmission light-gathering and heat-collecting unit;
FIG. 4 is a schematic structural diagram of the phase change heat storage energy storage and release unit in FIG. 1;
fig. 5 is a schematic structural view of the heat pipe cooker of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
A central heat collection system for a green kitchen is shown in figures 1 to 5 and comprises a Fresnel transmission light-gathering heat collection unit, wherein the Fresnel transmission light-gathering heat collection unit is connected with a heat pipe stove 17 through a heat conduction oil working medium natural circulation unit and a phase change heat storage energy storage and release unit. The Fresnel transmission light-gathering heat collection unit comprises a Fresnel transmission light-gathering device 2, a transparent vacuum tube 3 is arranged on the inner side of the Fresnel transmission light-gathering device 2, an oil guide tube 1 is arranged on the inner side of the vacuum tube 3, and the heat guide oil working medium natural circulation unit comprises a first transmission tube 19 and a second transmission tube 16, wherein the first transmission tube is in circulation connection with the oil guide tube 1, and the second transmission tube is in circulation connection with a heat pipe stove 17. The first transmission pipe 19 and/or the second transmission pipe 16 are/is provided with an adjusting valve 15, the first transmission pipe 19 is connected with a heat exchange coil 13, the second transmission pipe 16 is provided with an energy release coil 14, the phase change heat storage energy release unit comprises a phase change heat storage box 11 arranged outside the heat exchange coil 13 and the energy release coil 14, and a phase change heat storage material 12 is arranged in the phase change heat storage box 11.
Specifically, the solar heat collecting device comprises a heat collecting platform 20, a Fresnel transmission light-gathering heat collecting unit, an oil guide pipe 1, an energy storage platform 10, a phase change heat storage tank 11 and a heat pipe stove 17. The heat collection platform is arranged on the sunny side, the heat storage platform 10 is arranged on the sunny side below the heat collection platform 20, and the heat pipe stove 17 is arranged below the bottommost stove. Heat collection platform 20 is used for placing fei nieer transmission spotlight thermal-arrest unit 2 to support fixedly with mount 9, lead oil pipe 1 and be used for the transfer heat, phase change heat storage case 11 is for placing the energy memory of phase change heat storage material 12, and energy storage platform 10 is used for installing phase change heat storage case 11 and supports and fix, and heat pipe kitchen 17 is installed and is used for exporting the heat at the system end.
The Fresnel transmission light-gathering heat collection unit comprises a Fresnel transmission light-gathering device 2, a vacuum tube 3, a heat absorption coating 4, a heat conduction metal layer 5 and a heat conduction metal protection layer 6, wherein the vacuum tube 3 is fixedly arranged above the heat collection platform 20, the Fresnel transmission light-gathering device 2 is arranged above the vacuum tube 3, and the length of the Fresnel transmission light-gathering device 2 is equal to that of the vacuum tube. The radial central line of the Fresnel transmission type condenser 2 and the axis of the vacuum tube 3 are in the same vertical plane, and the vacuum tube 3 is fixed at the focusing position of the Fresnel lens, so that the refracted ray of the solar ray refracted by the Fresnel transmission type condenser 2 is concentrated on the heat absorption coating 4 in the working state. The Fresnel transmission type condenser 2 is fixedly arranged on the heat collection table and positioned above the outer part of the vacuum tube 3, and the cross section of the Fresnel transmission type condenser is arc-shaped.
The vacuum tube 3 is composed of an inner layer and an outer layer arranged outside the inner layer, and a vacuum interlayer is formed between the inner layer and the outer layer. Preferably, the cross section of the vacuum tube 3 is in a semi-circular or circular ring shape, the semi-circular or circular vacuum tube is composed of an inner layer and an outer layer, the inner layer and the outer layer are both made of transparent materials, and a vacuum interlayer with a heat preservation function is formed between the inner layer and the outer layer.
The oil guide pipe 1 is a steel pipe with a hollow section and DN50, is arranged in the vacuum pipe 3 by the fixing frame 9 and is used as a pipeline for conveying and temporarily storing heat conduction oil, a heat insulation coating can be coated on the outer layer of the pipeline extending out of the heat collector, the loss in the heat transmission process is reduced, and a sealing device oil retainer can be arranged at the joint of the oil guide pipe 1 to avoid the loss caused by the leakage of the heat conduction oil. The oil guide pipe 1 is provided with a heat conduction metal layer 5 and a heat conduction metal protection layer 6, and the heat conduction metal layer 5 is connected with the heat conduction metal protection layer 6 through an I-shaped or honeycombed structure so as to enhance the heat conductivity between the two layers of materials. The heat-conducting metal protective layer 6 has the function of the heat-conducting metal layer 5, and the material has good wear resistance. The heat-absorbing coating 4 is arranged on the upper layer of the heat-conducting metal layer 5.
The phase-change heat storage tank 11 is a cube made of a heat insulating material, and is mounted on the energy storage table 10 shown in fig. 4 to store heat collected by the heat collector. An oil guide pipe 1 connected from the heat collector is connected with a heat exchange coil 13 in a phase change heat storage box 11 through a transmission pipe 16. And the joint is filled with a sealing material and the outer layer of the box body is wrapped with a heat insulating material, so that heat loss and leakage of the heat storage material are reduced.
The heat pipe stove 17 and the transmission pipe 16 are formed by winding a steel pipe with a hollow section of DN40, the heat pipe stove 17 is arranged below the cooking bench and connected behind the energy release coil pipe 14, and the heat pipe stove 17 is controlled by the adjusting valve 15 to provide heat for a working medium to be heated, and can also be used as an emergency stop switch in a critical time.
The heat exchange coil 13 and the energy release coil 14 are both spiral pipes made of red copper, and the phase change heat storage material is an amorphous phase change heat storage material. The heat exchange coil 13 is arranged at the middle upper part in the phase change heat storage box 11, a fixed part can be properly arranged, and the bent part is a main heat exchange energy storage part and can fully absorb heat from heat conduction oil. The energy release coil 14 is arranged at the middle lower part in the phase change heat storage box, a fixing part can be properly arranged, and the bending part is a main energy release part which can fully release the heat in the phase change heat storage box 11 to the heat conduction oil in the energy release coil 14. A temperature display and an inner cavity material state strip 18 are arranged outside the phase change heat storage box 11, and a temperature sensor connected with the temperature display is arranged in the phase change heat storage box 11.
The joints of the first transmission pipe 19 and the oil guide pipe 1 and the heat exchange coil 13 and the joints of the second transmission pipe 16 and the energy release coil 14 and the heat pipe stove 17 are provided with sealing device oil retainers and are filled with sealing materials, so that the heat storage materials are prevented from leaking, and the heat is prevented from leaking while the sealing effect is achieved.
The using method of the invention is as follows:
the food materials are put into a special cooker, and heat is provided by the heat pipe stove 17 to obtain cooked food. The solar rays are converged on the heat absorption coating 4 on the inner side of the vacuum tube 3 along the Fresnel transmission type condenser 2 through the refracted rays obtained by the Fresnel transmission type condenser 2, the heat absorption effect of the heat absorption coating 4 is enhanced, the converged heat energy is transferred to heat conduction oil through the heat conduction metal layer 5, and the heat conduction oil circularly flows in the transmission tube 16 under the action of gravity and the action of temperature difference. Phase change heat accumulation material 12 absorbs the heat and stores from heat exchange coil 13 in the phase change heat accumulation case 11 on energy storage platform 10, open governing valve 15 when required, heat conduction oil in the energy release coil 14 absorbs the heat temperature rise of phase change heat accumulation material 12 in the phase change heat accumulation case 11, begin the circulation flow under the effect of gravity and difference in temperature, in the abundant release heat of heat pipe kitchen 17 part, provide the heat for the edible material that needs the heating, and adjust thermal supply power with governing valve 15.
The heat collecting platform 20 can be placed outdoors, and the Fresnel transmission type condenser 2 is fixed on the heat collecting platform 20; the energy storage table 10 is installed at a proper height position of an indoor kitchen, the phase change heat storage box 11 is fixed on the energy storage table 10, and articles such as tableware can be placed below the energy storage table 10 and the heat pipe stove 17.
Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. Green kitchen central authorities collecting system, including fei nieer transmission spotlight thermal-arrest unit, its characterized in that: the Fresnel transmission light-gathering heat collecting unit is connected with a heat pipe stove (17) through a heat conduction oil working medium natural circulation unit and a phase change heat storage energy storage and release unit, the Fresnel transmission light-gathering heat collecting unit comprises a Fresnel transmission light-gathering device (2), a transparent vacuum pipe (3) is arranged on the inner side of the Fresnel transmission light-gathering device (2), an oil guide pipe (1) is arranged on the inner side of the vacuum pipe (3), the heat conduction oil working medium natural circulation unit comprises a first transmission pipe (19) in circulation connection with the oil guide pipe (1) and a second transmission pipe (16) in circulation connection with the heat pipe stove (17), an adjusting valve (15) is arranged on the first transmission pipe (19) and/or the second transmission pipe (16), a heat exchange coil (13) is connected onto the first transmission pipe (19), an energy release coil (14) is arranged on the second transmission pipe (16), and the phase change heat storage energy release unit comprises a phase change heat storage box (11) arranged outside the heat exchange coil (13) and the energy release coil (14) And a phase change heat storage material (12) is arranged in the phase change heat storage box (11).
2. The green kitchen central heat collecting system according to claim 1, wherein: the cross section of the Fresnel transmission type condenser (2) is arc-shaped, and the cross section of the vacuum tube (3) is circular or semicircular.
3. The green kitchen central heat collecting system according to claim 2, wherein: the radial central line of the Fresnel transmission type condenser (2) and the axis of the vacuum tube (3) or/and the oil guide tube (1) are in the same vertical plane.
4. A green kitchen central heat collecting system according to any one of claims 1-3, characterized in that: the oil guide pipe (1) is provided with a heat conduction metal layer (5) and a heat conduction metal protection layer (6).
5. The green kitchen central heat collecting system according to claim 4, wherein: the heat-conducting metal layer (5) is connected with the heat-conducting metal protective layer (6) through an I-shaped or honeycombed structure.
6. The green kitchen central heat collecting system according to claim 5, wherein: and a heat absorption coating (4) is arranged on the upper layer of the heat conduction metal layer (5).
7. A green kitchen central heat collecting system according to any of claims 1-3, 5-6, characterized in that: and the pipeline section of the oil guide pipe (1) extending out of the Fresnel transmission type condenser (2), the first transmission pipe (19) and the second transmission pipe (16) are coated with heat insulation coatings.
8. The green kitchen central heat collecting system according to claim 7, wherein: and sealing device oil retainer rings are arranged at the joint of the first transmission pipe (19) and the oil guide pipe (1) or/and the heat exchange coil (13) and the joint of the second transmission pipe (16) and the energy release coil (14) or/and the heat pipe stove (17) and are filled with sealing materials.
9. A green kitchen central heat collecting system according to any one of claims 1-3, 5-6, 8, characterized in that: the heat exchange coil (13) and the energy release coil (14) are both spiral pipes made of red copper, and the phase change heat storage material is an amorphous phase change heat storage material.
10. The green kitchen central heat collecting system of claim 9, wherein: and a temperature display and an inner cavity material state strip (18) are arranged outside the phase-change heat storage box (11), and a temperature sensor connected with the temperature display is arranged in the phase-change heat storage box (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121764152.0U CN215523787U (en) | 2021-07-30 | 2021-07-30 | Green kitchen central heat collecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121764152.0U CN215523787U (en) | 2021-07-30 | 2021-07-30 | Green kitchen central heat collecting system |
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| Publication Number | Publication Date |
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| CN215523787U true CN215523787U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121764152.0U Active CN215523787U (en) | 2021-07-30 | 2021-07-30 | Green kitchen central heat collecting system |
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| CN (1) | CN215523787U (en) |
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2021
- 2021-07-30 CN CN202121764152.0U patent/CN215523787U/en active Active
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