阅读说明：本技术 一种相变储热的控温式太阳能烘箱 (Temperature control type solar oven with phase change heat storage function ) 是由 潘卫国 蒯子函 闫霆 吴韶飞 王凯 于 2020-04-01 设计创作，主要内容包括：本发明涉及一种相变储热的控温式太阳能烘箱,包括：聚光集热装置：由热水箱、聚光集热组件和方向控制组件组成,用以实现对热水箱内工质的加热；相变储热装置：由带有储热箱万向轮的外壳以及设置在外壳内多个并联的模块箱串组成,用以实现对热水箱流出的工质进行储热；多功能干燥装置：包括干燥箱以及设置在干燥箱上的汇集水箱组成,所述的汇集水箱分别与相变储热装置和热水箱连接,用以对干燥箱提供热量。与现有技术相比,本发明具有梯级控温、高效集热干燥、结构新颖、简单可靠、安全高效、实用性强等优点。(The invention relates to a temperature control type solar oven with phase change heat storage, which comprises: the light and heat collecting device comprises: the device consists of a hot water tank, a light and heat gathering component and a direction control component, and is used for heating working media in the hot water tank; phase change heat storage device: the hot water tank comprises a shell with a heat storage tank universal wheel and a plurality of module tank strings which are arranged in the shell in parallel and used for storing heat of working media flowing out of the hot water tank; multifunctional drying device: the heat storage and supply system comprises a drying box and a water collection tank arranged on the drying box, wherein the water collection tank is respectively connected with a phase change heat storage device and a hot water tank and is used for providing heat for the drying box. Compared with the prior art, the invention has the advantages of gradient temperature control, high-efficiency heat collection and drying, novel structure, simplicity, reliability, safety, high efficiency, strong practicability and the like.)

1. The utility model provides a accuse temperature formula solar oven of phase transition heat-retaining which characterized in that includes:

light-collecting and heat-collecting device (100): the device comprises a hot water tank (108), a light and heat collecting component and a direction control component, and is used for heating working media in the hot water tank (108);

phase change heat storage device (200): the device is composed of a shell (201) with a heat storage box universal wheel (202) and a plurality of parallel module box strings arranged in the shell (201) and used for storing heat of working media flowing out of a hot water tank (108);

multifunctional drying device (300): the device comprises a drying box and a water collecting tank (302) arranged on the drying box, wherein the water collecting tank (302) is respectively connected with a phase change heat storage device (200) and a hot water tank (108) and is used for providing heat for the drying box.

2. The phase change heat storage temperature-controlled solar oven according to claim 1, wherein the light and heat collecting assembly comprises a light collecting plate (106) and light collecting support rods (107) respectively used for supporting and connecting the light collecting plate (106), the top ends of the light collecting support rods (107) are connected with the bottom of the hot water tank (108), and the bottom ends of the light collecting support rods are respectively connected with four corners of the light collecting plate (106).

3. The phase-change heat-storage temperature-control solar oven according to claim 2, characterized in that the direction control assembly comprises a direction angle motor (101), a pitch angle motor (102), supports (103) mounted at two ends of the bottom of the light collecting plate (106), a photosensitive array (104) and a single chip microcomputer, a connecting rod is arranged between the supports (103), a first gear is eccentrically mounted on the connecting rod, a rotating disc is fixed on an output shaft of the direction angle motor (101), the pitch angle motor (102) is fixed on the rotating disc, an output shaft of the pitch angle motor (102) is in meshing transmission with the first gear through a second gear, the mounting support (103) is fixed at the bottom of the light collecting plate (106), the bearing rod (105) is used for fixing the light collecting plate (106), and the photosensitive array (104) is fixed on the bearing rod (105), and the control circuit is communicated with the singlechip to control the start and stop of a direction angle motor (101) and a pitch angle motor (102).

4. The phase change heat storage temperature-controlled solar oven as claimed in claim 3, characterized in that the light-gathering plate (106) is an off-axis deflection focusing light-gathering plate formed by stamping and forming metal components.

5. The phase-change heat-storage temperature-control solar oven as claimed in claim 1, characterized in that each module box string is composed of a plurality of module boxes (203) connected in series, is communicated with the water outlet pipe of the hot water tank (108) through a diversion water pipe (205) and a first water inlet pipe (204), and is connected with the water collecting tank (302) through a first water outlet pipe (207), a heat exchange pipe (208) is arranged in each module box (203), and the rest space is filled with a composite phase-change material (206).

6. The phase change heat storage temperature control solar oven of claim 5, a low-temperature box (309), a medium-temperature box (307) and a high-temperature box (305) are sequentially arranged in the drying box from bottom to top, the low-temperature box (309) is provided with a low-temperature water pipe (310), the medium-temperature box (307) is provided with a medium-temperature water pipe (308), the high-temperature box (305) is provided with a high-temperature water pipe (306), the low-temperature water pipe (310), the medium-temperature water pipe (308) and the high-temperature water pipe (306) are connected in parallel, the water inlet end of the water collecting tank is communicated with a second water outlet (303) of the water collecting tank (302), the water outlet end of the water collecting tank is communicated with a third water inlet pipe (312) of the water collecting tank (302), a third water outlet pipe (304) of the water collecting tank (302) is communicated with a water inlet pipe of the hot water tank (108), and a second water inlet pipe (301) of the water collecting tank (302) is communicated with a first water outlet pipe (207).

7. The phase change heat storage temperature control type solar oven according to claim 6, wherein the pipe diameters of the low temperature water pipe (310), the medium temperature water pipe (308) and the high temperature water pipe (306) are sequentially increased, and control valves are respectively arranged at water inlet ends.

8. The phase change heat storage temperature control type solar oven according to claim 7, wherein the pipe diameter of the low temperature water pipe (310) ranges from 8 mm to 12mm, the pipe diameter of the medium temperature water pipe (308) ranges from 12mm to 16mm, and the pipe diameter of the high temperature water pipe (306) ranges from 16mm to 20 mm.

9. The phase-change heat-storage temperature-control solar oven according to claim 5, characterized in that the composite phase-change material (206) is a phase-change material with a phase-change temperature of 50-300 ℃, a phase-change latent heat of 150-300 kJ/kg and a supercooling degree of 0.1-10 ℃.

10. The phase change heat storage temperature control solar oven as claimed in claim 5, characterized in that the module box (203) is provided with openings at four corners and in the central area for installing R-shaped thermal resistors to measure temperature.

Technical Field

The invention relates to the field of renewable energy utilization, in particular to a phase-change heat storage temperature control type solar oven.

Background

With the consumption of traditional non-renewable energy sources, the problems of continuous deterioration of global climate and the like ensue, the environment for human survival is seriously threatened, and solar energy has wide application prospect due to the advantages of cleanness, safety, energy conservation and the like, but is influenced by factors such as weather, geographical environment and the like, the utilization rate of the energy is unstable, and the energy density is low.

The improvement of the utilization of renewable energy sources becomes an important development trend in the future energy source field, so that the development of the utilization of solar energy in the energy-saving and environment-friendly field has important significance in solving the energy crisis, at present, the full play of the advantages of solar energy in areas with long illumination time and sufficient lighting is the mainstream development direction, but the application range of solar energy is still hindered due to intermittency and instability. Therefore, the temperature control type solar oven with phase change heat storage needs to be developed, namely clean and environment-friendly solar energy can be used as energy supply, and meanwhile, the stability of energy output of equipment can be improved by using the phase change module, so that the effects of drying and heating various agricultural products and traditional Chinese medicines are achieved.

Chinese patent application No. 201620202984.6 proposes an in-tube phase change energy storage solar dryer in which solar energy is supplied to a drying box by absorbing heat through heat pipes and excess heat is absorbed by a waste heat recovery heat exchanger. The device can solve the problems of food drying, household hot water supply and the like to a certain extent, but the dryer does not have a large-capacity heat storage device, cannot ensure continuous drying processing all day long, cannot ensure normal operation of drying equipment particularly under the condition of insufficient sunlight, and is not suitable for large-scale popularization and application; in addition, Chinese patent (application number 201010600814.0) proposes a dried fruit and tea leaf drying device based on two cylinders of phase change radiator, and this device is favorable to carrying out the drying process to tealeaves and agricultural product, but this patent temperature control effect is relatively poor, can not dry agricultural product all the day.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a temperature-controlled solar oven with phase-change heat storage.

The purpose of the invention can be realized by the following technical scheme:

a temperature-controlled solar oven with phase change heat storage, comprising:

the light and heat collecting device comprises: the device consists of a hot water tank, a light and heat gathering component and a direction control component, and is used for heating working media in the hot water tank;

phase change heat storage device: the hot water tank comprises a shell with a heat storage tank universal wheel and a plurality of module tank strings which are arranged in the shell in parallel and used for storing heat of working media flowing out of the hot water tank;

multifunctional drying device: the heat storage and supply system comprises a drying box and a water collection tank arranged on the drying box, wherein the water collection tank is respectively connected with a phase change heat storage device and a hot water tank and is used for providing heat for the drying box.

The light and heat collecting assembly comprises a light collecting plate and light collecting supporting rods which are respectively used for supporting and connecting the light collecting plate, the top end of each light collecting supporting rod is connected with the bottom of the hot water tank, and the bottom end of each light collecting supporting rod is connected with the four corners of the light collecting plate.

The direction control assembly comprises a direction angle motor, a pitch angle motor, supports arranged at two ends of the bottom of the light collecting plate, a photosensitive array and a single chip microcomputer, a connecting rod is arranged between the supports, a first gear is eccentrically arranged on the connecting rod, a turntable is fixed on an output shaft of the direction angle motor, the pitch angle motor is fixed on the turntable, an output shaft of the pitch angle motor is in meshing transmission with the first gear through a second gear, the mounting support is fixed at the bottom of the light collecting plate, the bearing rod is used for fixing the light collecting plate, the photosensitive array is fixed on the bearing rod, and the photosensitive array is communicated with the single chip microcomputer to control the start and stop of the direction angle motor and the pitch angle motor.

The light gathering plate is an off-axis deflection focusing light gathering plate formed by metal split punch forming.

Each module box string is composed of a plurality of module boxes connected in series, the module boxes are communicated with a water outlet pipe of the hot water tank through a diversion water pipe and a first water inlet pipe and are connected with a water collecting tank through a first water outlet pipe, a heat exchange pipe is arranged in each module box, and composite phase change materials are filled in the rest spaces.

The drying cabinet in by lower supreme low temperature box, well warm box and the high temperature case of being equipped with in proper order, the low temperature box be equipped with the low temperature water pipe, the well warm box be equipped with the well warm water pipe, the high temperature case be equipped with the high temperature water pipe, low temperature water pipe, well warm water pipe and high temperature water pipe parallelly connected each other, its end of intaking and the second delivery port intercommunication that collects the water tank, go out the water outlet end and the third intake pipe intercommunication that collects the water tank, the third outlet pipe that collects the water tank communicates with the inlet tube of hot-water tank, the second inlet tube and the first outlet pipe intercommunication that collect the water tank.

The pipe diameters of the low-temperature water pipe, the medium-temperature water pipe and the high-temperature water pipe are sequentially increased, and control valves are respectively arranged at water inlet ends.

The pipe diameter range of the low-temperature water pipe is 8-12 mm, the pipe diameter range of the medium-temperature water pipe is 12-16 mm, and the pipe diameter range of the high-temperature water pipe is 16-20 mm.

The composite phase change material is a phase change material with the phase change temperature of 50-300 ℃, the phase change latent heat of 150-300 kJ/kg and the supercooling degree of 0.1-10 ℃.

And holes for installing R-shaped thermal resistors for measuring temperature are formed in the four corners and the central area of the module box.

Compared with the prior art, the invention has the following advantages:

1) the invention adopts the off-axis off-focus type light-gathering and heat-collecting device which tracks the sun in real time, can efficiently collect solar heat to heat the hot water tank at the focus of the light-gathering plate and provide a heat source for drying and heating.

2) The phase-change heat storage device is composed of a plurality of high-performance composite phase-change material modules, and all-weather uniform heat output can be realized by adjusting the connection mode and the number of the heat storage modules, so that the requirements of drying and living heating of different agricultural products or traditional Chinese medicines and the like are met.

3) The multifunctional drying device is provided with a plurality of layers of heating spaces, maintains different temperatures by adjusting the flow of the circulating working medium, can achieve the effects of gradient temperature control and staged drying, and has high drying efficiency, stability and reliability.

4) This accuse warm formula solar oven of phase transition heat-retaining collects solar heat and carries out heat storage and heating multifunctional oven, and energy utilization is rateed highly, and drying effect is good, and the suitability is strong, but wide application in crops or chinese medicinal material drying, family hot water system and family heating etc. aspect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic structural diagram of a light and heat collecting device according to the present invention.

Fig. 3 is a schematic structural diagram of the phase-change heat storage device of the present invention.

Fig. 4 is a schematic structural view of the multifunctional drying device of the present invention.

The notation in the figure is:

100. the solar energy heat collection system comprises a light gathering device 200, a phase change heat storage device 300, a multifunctional drying device 101, a direction angle motor 102, a pitch angle motor 103, a mounting bracket 104, a photosensitive array 105, a bearing rod 106, a light gathering plate 107, a light gathering support rod 108, a hot water tank 201, a shell 202, a heat storage tank universal wheel 203, a module box 204, a first water inlet pipe 205, a diversion water pipe 206, a composite phase change material 207, a first water outlet pipe 208, a heat exchange pipe 301, a second water inlet pipe 302, a gathering water tank 303, a second water outlet pipe 304, a third water outlet pipe 305, a high temperature box 306, a high temperature water pipe 307, a medium temperature box 308, a medium temperature water pipe 309, a low temperature box 310, a low temperature water pipe 311, a drying device universal wheel 312 and a third water inlet pipe.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.