Photothermal heat collection system

Abstract

The application discloses a photothermal heat collecting system, which comprises a cover body, a support and a driving mechanism. The cover body comprises a first cover body and a second cover body, the second cover body is provided with a light collecting port, the first cover body is pivotally connected with the second cover body, the center axis of the rotating surface of the first cover body intersects with the center axis of the rotating surface of the second cover body, the support is pivotally connected with the first cover body, and the driving mechanism is in transmission connection with the first cover body and the second cover body. The photothermal heat collecting system has the advantages that sunlight can be efficiently collected and the spatial position of a geometric light collecting point is kept unchanged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photo-thermal heat collection, in particular to a photo-thermal heat collection system. BACKGROUND

[0002] Photo-thermal power generation is a clean energy generation method with huge reserves. At present, the main light collection and heat collection systems are trough type, dish type and tower type photo-thermal. These light collection and heat collection methods have their own advantages and disadvantages, and the applicable scenarios and the efficiency they can achieve also have great differences. For large-scale photo-thermal power generation, there is currently no particularly efficient and convenient solution. In view of the characteristics of high light concentration ratio and high light collection efficiency of the dish type light collector, a new cavity type heat collection system is urgently needed. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art. To this end, the embodiments of the present application propose a photo-thermal heat collection system, which has the advantages of high-efficiency collection of sunlight while keeping the spatial position of the geometric light concentration point unchanged.

[0004] According to the photo-thermal heat collection system of the embodiments of the present application, the photo-thermal heat collection system comprises a cover body, a support and a driving mechanism, the cover body comprises a first cover body and a second cover body, the second cover body is provided with a light collection port, the first cover body is pivotably connected with the second cover body, the center axis of the rotation surface of the first cover body and the center axis of the rotation surface of the second cover body intersect, the support is pivotably connected with the first cover body, and the driving mechanism is in transmission connection with the first cover body and the second cover body.

[0005] The photo-thermal heat collection system according to the embodiments of the present application has the advantages and technical effects of independent rotation of the heat collection cavity, high-efficiency collection of sunlight while keeping the spatial position of the geometric light concentration point unchanged. The present application realizes that the light collection port always follows the movement of the reflecting surface by driving the first cover body and the second cover body to rotate, keeps the spatial position of the geometric light concentration point unchanged, and efficiently collects sunlight and converts it into heat.

[0006] In some embodiments, the center axis of the light collection port intersects with the center axis of the rotation surface of the first cover body and the center axis of the rotation surface of the second cover body.

[0007] In some embodiments, a third cover body is provided on the support, and the third cover body is pivotably connected with the first cover body.

[0008] In some embodiments, the driving mechanism comprises a plurality of transmission gear rings and a plurality of driving motors, the transmission gear rings correspond one-to-one with the driving motors, the driving motors are in transmission connection with the transmission gear rings, the transmission gear rings are located on the second cover body and the first cover body, and the driving motors are located on the support and the first cover body.

[0009] In some embodiments, the driving motor comprises a first driving motor and a second driving motor, the first driving motor is arranged at one end of the support adjacent to the first cover, the second driving motor is arranged at one end of the first cover adjacent to the second cover, the transmission ring gear comprises a first ring gear and a second ring gear, the first ring gear is located at one end of the third cover adjacent to the first cover, and the second ring gear is located at one end of the second cover adjacent to the first cover.

[0010] In some embodiments, the first cover, the second cover and the third cover are combined to form a heat collecting cavity.

[0011] In some embodiments, the heat collecting cavity is provided with a heat absorption tube screen, and the heat absorption tube screen is connected in communication with a working medium pipeline passing through the support.

[0012] In some embodiments, the third cover is filled with thermal insulation material between the third cover and the working medium pipeline.

[0013] In some embodiments, the light-heat heat collecting system further comprises a control device, the control device is connected with the driving mechanism, and the control device is connected with the dish-shaped reflector.

[0014] In some embodiments, the central axis of the light collecting port coincides with the central axis of the dish-shaped reflector. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of a light-heat heat collecting system according to an embodiment of the present application.

[0016] Fig. 1 is a structural schematic diagram of a light-heat heat collecting system according to an embodiment of the present application. DETAILED DESCRIPTION

[0017] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0018] According to the light-heat heat collecting system of the embodiment of the present application, the first cover, the second cover and the third cover are combined to form a heat collecting cavity, the first cover is provided with a first driving motor and a second driving motor, the second cover is provided with a first ring gear and a second ring gear, the third cover is provided with a light collecting port, and the light collecting port is connected with the first ring gear and the second ring gear. Figure 1As shown, the light-thermal heat collection system comprises a cover body, a support 1 and a driving mechanism, the cover body comprises a first cover body 3 and a second cover body 4, the second cover body 4 is provided with a light collection port 5, the first cover body 3 is pivotally connected with the second cover body 4, the center axis of the rotation surface of the first cover body 3 intersects with the center axis of the rotation surface of the second cover body 4, the support 1 is pivotally connected with the first cover body 3, and the driving mechanism is in transmission connection with the first cover body 3 and the second cover body 4.

[0019] The light-thermal heat collection system has the advantages of independent rotation of the heat collection cavity, efficient collection of sunlight and keeping the spatial position of the geometric light collection point unchanged.

[0020] In some embodiments, as shown in Figure 1 The center axis of the light collection port 5 intersects with the center axis of the rotation surface of the first cover body 3 and the center axis of the rotation surface of the second cover body 4.

[0021] Specifically, the center axis of the light collection port 5 intersects with the center axis of the rotation surface of the first cover body 3 and the center axis of the rotation surface of the second cover body 4, so that the center axis of the light collection port 5 rotates around the center axis of the rotation surface of the second cover body 4, and there is an annular adjustment area around the center axis of the rotation surface of the second cover body 4.

[0022] In some embodiments, as shown in Figure 1 The third cover body 2 is pivotally connected with the first cover body 3.

[0023] Specifically, the third cover body 2 is in the shape of a spherical cap, the third cover body 2 is pivotally connected with the first cover body 3, the first cover body 3 can rotate relative to the third cover body 2, and the third cover body 2 is fixedly connected with the support 1.

[0024] In some embodiments, as shown in Figure 1 The driving mechanism comprises a plurality of driving gears 6 and a plurality of driving motors, the driving gears 6 correspond to the driving motors one by one, the driving motors are in transmission connection with the driving gears 6, the driving gears 6 are located on the second cover body 4 and the first cover body 3, and the driving motors are located on the support 1 and the first cover body 3.

[0025] Specifically, a driving gear is arranged on the output end of the driving motor, the driving gear is in mesh with the driving gear 6, the driving motor is located on the first cover body 3 when the driving gear 6 is located on the second cover body 4, and the driving motor is located on the support 1 when the driving gear 6 is located on the first cover body 3. The driving motor drives the driving gear to rotate, the driving gear drives the driving gear 6 to rotate, and the first cover body 3 and the second cover body 4 are further driven to rotate, so that the first cover body 3 rotates relative to the support 1, and the second cover body 4 rotates relative to the first cover body 3.

[0026] In some embodiments, as shown in Figure 1 The driving motor comprises a first driving motor 7 and a second driving motor 8, the first driving motor 7 is arranged at one end of the support 1 adjacent to the first cover body 3, the second driving motor 8 is arranged at one end of the first cover body 3 adjacent to the second cover body 4, the driving gear 6 comprises a first gear and a second gear, the first gear is located at one end of the third cover body 2 adjacent to the first cover body 3, and the second gear is located at one end of the second cover body 4 adjacent to the first cover body 3.

[0027] Specifically, the first driving motor 7 is used to drive the first cover body 3 to rotate, the first cover body 3 can drive the second cover body 4 to rotate, and the second driving motor 8 is used to drive the second cover body 4 to rotate relative to the first cover body 3.

[0028] In some embodiments, as shown in Figure 1 The first cover body 3, the second cover body 4 and the third cover body 2 are combined to form a heat collecting cavity.

[0029] Specifically, the first cover body 3, the second cover body 4 and the third cover body 2 are combined together to form a shape similar to a sphere, the first cover body 3, the second cover body 4 and the third cover body 2 form a cavity, the cavity is a heat collecting cavity, the heat collecting cavity has a shape similar to a sphere, and the geometric center of the heat collecting cavity intersects with the central axis of the light collecting port 5 of the second cover body 4. The geometric center of the heat collecting cavity intersects with the central axis of the light collecting port 5, so that light can enter.

[0030] In some embodiments, as shown in Figure 1 A heat absorption pipe screen 10 is arranged in the heat collecting cavity, and the heat absorption pipe screen 10 is in communication with the working medium pipeline 9 penetrating through the support 1.

[0031] Specifically, in the process of tracking the sun by translation and rotation of the reflector, the spatial position of its geometric focal point is not conveniently located at the center of the heat collecting cavity, while the heat absorbing tube screen 10 is located at the center of the heat collecting cavity, the heat absorbing tube screen 10 collects sunlight and converts it into heat to heat the heat conducting oil, molten salt and other working medium of the working medium pipeline 9. The heat absorbing tube screen 10 is a heat transfer device made of a metal tube bundle, and the working medium flows into the heat absorbing tube screen 10 and is heated and then flows out.

[0032] In some embodiments, the third cover 2 and the working medium pipeline 9 are filled with thermal insulation materials.

[0033] Specifically, the working medium pipeline 9 and the third cover 2 are fixed together, and the thermal insulation material filled in between can reduce heat loss, and the inner walls of the first cover 3, the second cover 4 and the third cover 2 are provided with thermal insulation materials to maximize the heat loss of the heat collecting cavity.

[0034] In some embodiments, as shown in Figure 1 The light-heat heat collecting system further comprises a control device 11, the control device 11 is connected with the driving mechanism, and the control device 11 is connected with the dish-shaped reflector.

[0035] Specifically, the control device 11 controls the start and stop of the first motor and the second motor of the driving mechanism, and controls the synchronous movement of the heat collecting hole of the heat collecting cavity according to the azimuth control parameter of the dish-shaped reflector.

[0036] In some embodiments, the central axis of the light collecting port 5 coincides with the central axis of the dish-shaped reflector.

[0037] Specifically, the central axis of the light collecting port 5 coincides with the central axis of the dish-shaped reflector to ensure that the sunlight from the dish-shaped reflector enters the heat collecting cavity to the maximum extent.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply a relative importance or an ordering between or among the indicated features. Thus, a feature defined with "first", "second", etc. can include at least one of the features, either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise specifically defined.

[0040] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples, without contradiction.

[0043] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A solar thermal collector system, characterized in that, include: The cover includes a first cover and a second cover. The second cover is provided with a light-collecting port. The first cover and the second cover are pivotally connected. The central axis of the rotation surface of the first cover and the central axis of the rotation surface of the second cover intersect. The central axis of the light-collecting port intersects with the central axis of the rotation surface of the first cover and the central axis of the rotation surface of the second cover. A support frame, which is pivotally connected to the first cover, and a third cover is provided on the support frame, which is pivotally connected to the first cover; A driving mechanism is connected to the first cover and the second cover in a transmission manner. When the first cover rotates, it drives the second cover to rotate on one plane. When the second cover rotates, it rotates on another plane. A control device is connected to a dish reflector, wherein the central axis of the light-collecting port coincides with the central axis of the dish reflector.

2. The photothermal heat collection system according to claim 1, characterized in that, The drive mechanism includes multiple transmission gear rings and multiple drive motors. Each transmission gear ring corresponds to one of the drive motors, and the drive motors are connected to the transmission gear rings. The transmission gear rings are located on the second cover and the first cover, and the drive motors are located on the bracket and the first cover.

3. The photothermal heat collection system according to claim 2, characterized in that, The drive motor includes a first drive motor and a second drive motor. The first drive motor is disposed at one end of the bracket adjacent to the first cover, and the second drive motor is disposed at one end of the first cover adjacent to the second cover. The transmission gear ring includes a first gear ring and a second gear ring. The first gear ring is located at one end of the third cover adjacent to the first cover, and the second gear ring is located at one end of the second cover adjacent to the first cover.

4. The photothermal heat collection system according to claim 1, characterized in that, The first cover, the second cover, and the third cover are assembled to form a heat collection cavity.

5. The photothermal heat collection system according to claim 4, characterized in that, The heat collection chamber is equipped with a heat absorption tube screen, which is connected to the working fluid pipe passing through the support.

6. The photothermal heat collection system according to claim 5, characterized in that, The third cover and the working fluid pipe are filled with thermal insulation material.

7. The solar thermal collector system according to claim 1, characterized in that, The control device is connected to the drive mechanism.

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