Totally-closed light solar photo-thermal collector

Abstract

The utility model relates to the technical field of solar photo-thermal collection, and discloses a totally-enclosed light solar photo-thermal collector, which comprises a frame and a heat collection mechanism arranged in the frame, the axis of the heat collection mechanism is parallel to the axis of the frame, and the heat collection mechanism and the frame adopt a totally-enclosed structure. The heat collection mechanism comprises a plurality of heat collection pipes and a reflective film arranged on the inner wall of the frame. The device is easy to install, low in cost and capable of effectively reducing heat loss and improving heat energy utilization efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar light and heat collection technical field more particularly relates to a kind of full-closed light solar light and heat collector. BACKGROUND

[0002] Solar energy is a kind of renewable energy, refers to the heat radiation energy of sun, main performance is the commonly said sunlight, in modern times generally used for power generation or provide energy for water heater. Since the life on earth was born, mainly with the heat radiation energy provided by sun survival, and since ancient times, humans also know to dry objects with sunlight, and as a method of making food, such as salt making and drying salted fish, in the case where fossil fuel is decreasing, solar energy has become an important part of human energy use, and is developing continuously. Solar energy has two ways of light and heat conversion and photoelectric conversion, solar power generation is a new renewable energy, solar energy also includes wind energy, chemical energy, water energy on earth in a broad sense.

[0003] The existing solar light and heat collector mainly has the following two shortcomings when in use, one is that the collector structure is complex and cannot well light and heat collection, which increases cost and reduces the efficiency of solar energy collection of the device, and the other is that it has no dustproof and anticorrosion function, and the open structure can cause heat loss and reduce the utilization efficiency of collected heat energy. UTILITARY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of full-closed light solar light and heat collector, installation is simple, cost is lower, can effectively reduce heat loss, improve heat energy utilization efficiency.

[0005] To achieve the above object, the full-closed light solar light and heat collector provided by the utility model, including frame and heat collection mechanism arranged in the frame, the axis of the heat collection mechanism is parallel to the axis of the frame, the heat collection mechanism and the frame adopt a fully-closed structure, the heat collection mechanism includes a plurality of heat collection tubes and a reflective film arranged on the inner wall of the frame.

[0006] Preferably, the frame is made of transparent plastic plate.

[0007] Preferably, the frame adopts the geometric structure of compound parabolic concentrator.

[0008] Preferably, the installation position of the reflective film is the lower half of the inner wall of the frame, so that the light from the edge of the light source falls on the edge of the target surface on the heat collection tube after a series of ordered regular optical curved surfaces, and the light from the inside of the light source falls on the inside of the target surface on the heat collection tube.

[0009] Preferably, the heat collection tube adopts a double-end open tube straight-through structure.

[0010] Preferably, the heat collecting tube is connected with and communicated with a heat energy transmission pipeline of a heating system, a power generation device or a dryer.

[0011] Via the technical scheme, compared with the prior art, the full-closed light solar heat collector has the following beneficial effects:

[0012] 1. High energy conversion efficiency: the device adopts a double-end opening tube straight-through structure, has high light-heat conversion efficiency, and the full-closed structure can reduce heat loss; the outer structure design of the device adopts a geometric shape of a compound parabolic concentrator (CPC type), which can effectively collect and focus light, has a larger light collecting area, and the device uses a light reflecting film with better light reflecting effect to replace traditional light reflecting material, has high light condensing ratio, can absorb sunlight as much as possible, and can maximize the conversion of light energy into heat energy;

[0013] 2. Environment-friendly and non-polluting: the device relies on solar energy as a renewable energy source, and is free from dependence on fossil fuels; the whole process is noiseless and carbon-free, and realizes a zero pollution target;

[0014] 3. Stable operation and long service life: the frame part of the device shell uses a high transparent plastic plate, basically realizes semi-permanent use, has zero loss during operation, and the full-closed structure also reduces dirt and corrosion problems;

[0015] 4. Low cost and strong adaptability: the device uses a low-cost high transparent plastic plate material as a closed transparent shell, not only controls the cost, but also makes the whole device become light and has stronger adaptability, and can be used in different places according to the environment and industrial needs.

[0016] 5. High safety: the device has no high-risk operation and dangerous items during operation, and has high safety performance. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0018] Fig. 1 It is a first perspective view of the full-closed light solar heat collector of the present application.

[0019] Fig. 2 It is a second perspective view of the full-closed light solar heat collector of the present application.

[0020] Frame-1; heat collecting pipe-2; reflective film-3. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] Please refer to the drawings Figs. 1-2 The present application discloses a kind of fully enclosed light solar heat collector.

[0023] The fully enclosed light solar heat collector provided by the present application comprises a frame 1, a heat collecting pipe 2 and a reflective film 3.

[0024] The heat collecting pipe 2 and the reflective film 3 form a heat collecting mechanism, which is arranged inside the frame 1. The axis of the heat collecting mechanism is parallel to the axis of the frame 1. The heat collecting mechanism and the frame 1 adopt a fully enclosed structure. Specifically, the heat collecting mechanism comprises a plurality of heat collecting pipes 2 and a reflective film 3 arranged on the inner wall of the frame 1.

[0025] Specifically, the frame 1 is a transparent cover plate made of high-transparency plastic plate with a density of about 1.20 g / cm 3 , which is light in weight, greatly reduces the overall mass of the entire device, has a high melting point, can withstand high temperature, and has a long service life. It should be noted that the geometric shape of the frame 1 adopts the geometric structure of a compound parabolic concentrator (CPC). This structure is usually composed of two symmetrical parabolas, which are rotated around the central axis to form a three-dimensional structure, which can increase the light collecting area and prevent dust accumulation from affecting the light collecting effect. The transparent plastic plate is made of transparent plastic plate.

[0026] Specifically, the heat collecting pipe 2 is a double-end open pipe straight-through type heat collector with high heat collecting efficiency. Two to three heat collecting pipes can generate a high temperature of 200-300℃. The number of heat collecting pipes can be designed according to actual needs, which is not limited here. The reflective film 3 is a 0.06mm PET reflective film with good retroreflective performance, strong weather resistance and long service life.

[0027] It should be noted that the reflective film 3 is installed in close contact with the frame 1 (without wrinkles), and the installation position is the lower half of the internal frame 1. When collecting light and heat, the light at the edge of the light source will still fall on the edge of the target surface of the heat collecting pipe 2 after passing through a series of regular optical curved surfaces, while the light from the inside of the light source will fall on the inside of the target surface of the heat collecting pipe 2.

[0028] It should be noted that the heat collecting pipe 2 adopts a double-end open pipe direct heat collector, and the heat collector is connected with other heat utilization systems through pipes at both ends to transmit the heat in the heat collecting pipe 2, while the heat collecting mechanism and the frame 1 adopt a fully enclosed structure, that is, the frame 1 is fully enclosed by high-transparency plates and foam glue and the like between the heat collecting mechanism (i.e., the pipe section in the heat collecting pipe 2 for collecting heat) at both ends, so that the heat in the heat collecting mechanism is prevented from diffusing to the outside, thereby improving the heat collection efficiency.

[0029] The use method of the fully-enclosed light solar light-heat collector is as follows: the heat collecting device (the number of heat collecting pipes is installed according to requirements) is assembled with the transparent shell (including a CPC type support structure, a reflective film and the like), and is placed in a solar energy-rich collection area. With the passage of time, solar energy is converted into stable high-temperature heat energy by the heat collecting device. The fully-enclosed structure can reduce heat loss and prevent dust from entering the device, thereby affecting the service life and heat collecting effect. The collected heat can be used for heating, power generation, drying and the like.

[0030] The operation principle of the fully-enclosed light solar light-heat collector is as follows:

[0031] (1) Installation and debugging stage

[0032] Site selection and installation: a region rich in solar energy resources and long in illumination time is selected to ensure that the heat collecting device can maximize the reception of solar radiation. The heat collecting mechanism is assembled with the transparent shell frame 1 to ensure close connection and good sealing performance.

[0033] System connection: the heat collecting pipe 2 in the heat collecting mechanism is connected with the heat energy transmission pipeline of the heating system, power generation equipment or dryer, and temperature sensors, flow controllers and the like can be configured to ensure that the system can automatically adjust and monitor heat collection and distribution.

[0034] (2) Operation stage

[0035] Heat collection: under the sunlight, the heat collecting mechanism starts to absorb solar energy and converts it into high-temperature heat energy. With the passage of time, the heat collecting mechanism continuously provides stable heat energy.

[0036] (3) Heat distribution and utilization

[0037] Heating: the collected heat energy is transported to the heating system through the pipeline to provide winter heating for buildings.

[0038] Power generation: heat energy is converted into electric energy, and power generation is performed through a thermal power generator.

[0039] Drying: using heat energy for drying industries such as wood drying, food drying, medicinal material drying, etc.

[0040] (4) Maintenance and management

[0041] System monitoring: temperature sensors, flow sensors and other devices installed can monitor the operating status of the heat collection mechanism, ensure heat collection efficiency, clean the surface of the heat collection device, check the pipes and connecting parts, and prevent leakage and damage.

[0042] (5) Fault handling

[0043] Timely response: when the user finds a system failure, immediate measures can be taken to repair it. The simple structure facilitates the maintenance of the staff, and the process of heating, power generation and drying can be quickly repaired during extreme weather or system maintenance to ensure continuity.

[0044] The fully-closed light solar light and heat collector of the utility model combines the richness, cleanliness and renewability of solar energy resources, and the continuous innovation of light and heat conversion technology. With the development of efficient heat collection technology, heat storage technology and new materials, fully-closed design becomes possible, which can effectively reduce heat loss and improve heat utilization efficiency, and has the characteristics of dustproof, corrosion-resistant and high safety; The lightening trend makes the collector easier to install and lower in cost, meeting the market demand for economical and environmentally friendly energy-saving products.

[0045] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully enclosed lightweight solar thermal collector, characterized in that, It includes a frame (1) and a heat collection mechanism located inside the frame (1). The axis of the heat collection mechanism is parallel to the axis of the frame (1). The heat collection mechanism and the frame (1) adopt a fully enclosed structure. The heat collection mechanism includes several heat collection tubes (2) and a reflective film (3) located on the inner wall of the frame (1). The frame (1) adopts the geometric structure of a composite parabolic concentrator; the reflective film (3) is installed in the lower half of the inner wall of the frame (1), so that the light from the edge of the light source passes through a series of ordered regular optical surfaces and falls on the edge of the target surface on the heat collection tube (2), so that the light from inside the light source falls inside the target surface on the heat collection tube (2).

2. The fully enclosed lightweight solar thermal collector according to claim 1, characterized in that, The frame (1) is made of transparent plastic sheet.

3. The fully enclosed lightweight solar thermal collector according to claim 1, characterized in that, The heat collection tube (2) adopts a double-ended open tube straight-through structure.

4. The fully enclosed lightweight solar thermal collector according to claim 1, characterized in that, The heat collection pipe (2) is connected to and in communication with the heat energy transmission pipe of the heating system, power generation equipment or dryer.

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