Shielding device and solar facility

Abstract

The utility model provides a shielding device and a solar facility. The shielding device comprises a first supporting piece suitable for being arranged on a solar heat collection device; the second supporting piece is opposite to the first supporting piece and is suitable for being arranged on the solar heat collection device; the driving mechanism comprises a transmission assembly, the transmission assembly is arranged between the first supporting piece and the second supporting piece, and the shielding piece is arranged between the first supporting piece and the second supporting piece in a telescopic mode and suitable for being arranged above the solar heat collection device; in the longitudinal extension direction of the shielding piece, the transmission assembly is connected with the shielding piece so as to drive the shielding piece; the guide assembly is in sliding fit with the shielding piece; the multiple guide assemblies are arranged between the first supporting piece and the second supporting piece in parallel at intervals, and the transmission assemblies are arranged between the adjacent guide assemblies. The solar heat collection device can be shielded under the stretching in severe weather, and the surface of the solar heat collection device is protected; and the device is recovered under a sunny condition to ensure the operation of the device.

Description

Technical Field

[0001] The present disclosure relates to the field of solar energy system engineering, and in particular to a shielding device and a solar energy facility. Background Art

[0002] Solar energy is a clean, renewable energy source with great potential and advantages. It can not only reduce dependence on fossil fuels and greenhouse gas emissions, but also help us achieve sustainable use of energy. With the continuous development of solar energy technology, the cost is gradually reduced and the efficiency is continuously improved, making solar energy widely used in households, industries and commercial fields.

[0003] When solar energy facilities are operated in winter, if they encounter severe weather such as snowfall and hail, snow or ice accumulation on the solar collector will affect their normal operation. Especially for trough solar energy equipment, snow or ice accumulation on the concentrator needs to be cleaned manually, and manual cleaning with tools may cause the tools to bump against the concentrator and the collector tube, which may damage the solar energy facilities in serious cases. Utility Model Content

[0004] The technical problem to be solved by the present disclosure is to provide a shielding device and a solar energy facility, which can be opened under severe weather conditions and shield the solar thermal collector to protect the surface of the solar thermal collector, thereby ensuring the normal operation of the solar thermal collector.

[0005] To solve the above technical problems, the present disclosure provides a shielding device and a solar energy facility, the shielding device comprising: a first support member, the first support member is suitable for being arranged on a solar energy collector; a second support member, the second support member is suitable for being arranged on the solar energy collector opposite to the first support member; a driving mechanism, the driving mechanism comprising a transmission assembly, the transmission assembly is arranged between the first support member and the second support member; a shielding member, the shielding member is telescopically arranged between the first support member and the second support member, and the shielding member is suitable for being arranged above the solar energy collector; in the longitudinal extension direction of the shielding member, at least one end of the shielding member is connected to the transmission assembly to drive the shielding member; a guide assembly, the guide assembly extends along the longitudinal extension direction of the shielding member and slidably cooperates with the shielding member; the number of the guide assemblies is multiple, the multiple guide assemblies are arranged between the first support member and the second support member in parallel and at intervals, and the transmission assembly is arranged between any two adjacent guide assemblies.

[0006] The shielding device provided by the present disclosure on one hand can provide a mounting position for a driving device, a shielding member and a guide assembly by connecting a first support member and a second support member opposite thereto to a solar thermal collector; by arranging a retractable shielding member between the first support member and the second support member, and connecting at least one end of the shielding member to a transmission assembly of a driving device in the longitudinal extension direction of the shielding member, so as to realize the driving of the shielding member's telescopic function, so that the shielding member can be unfolded to shield the solar thermal collector under bad weather conditions, and retracted under clear weather conditions, so as to ensure the normal operation of the solar thermal collector; by arranging a plurality of guide assemblies that can slide with the shielding member between the first support member and the second support member, and arranging the transmission assembly between any two adjacent guide assemblies, the stability of the shielding member during the telescopic process can be ensured, and the unfolded shielding member can be supported. Therefore, the scheme of the present disclosure can be extended under bad weather conditions to shield the solar thermal collector and protect the surface of the solar thermal collector; and retracted under clear weather conditions, so as to ensure the normal operation of the solar thermal collector.

[0007] Furthermore, in the longitudinal extension direction of the shielding member, one end of the shielding member is connected to the transmission assembly, and the other end is connected to the first support member or the second support member. Through the above arrangement, one end of the shielding member is driven by the transmission assembly to extend and retract, and the other end is fixed to the first support member or the second support member, which can flexibly adapt to different installation requirements and also improve the stability of the shielding member.

[0008] Furthermore, there are two guide assemblies, which are respectively slidably connected to the two sides of the shielding member in the horizontal direction. In the top view, the orthographic projection of the solar thermal collector is suitable to be between the orthographic projections of the two guide assemblies, and the transmission assembly is arranged between the two guide assemblies. Through the above arrangement, the stability of the longitudinal edge of the shielding member is ensured, and the shielding member is prevented from being blown away by strong winds under bad weather conditions; in addition, when the driving force is applied, it is more conducive to the shielding member to maintain balance during the extension and retraction process.

[0009] Further, the first support member includes a first vertical middle support rod and two first inclined side support rods, the two first inclined side support rods form an angle with the opening facing away from the solar thermal collector, the first vertical middle support rod is arranged between the two first inclined side support rods, the first vertical middle support rod is connected to the transmission assembly, and the two first inclined side support rods are respectively connected to the two guide assemblies; the second support member includes a second vertical middle support rod and two second inclined side support rods, the two second inclined side support rods form an angle with the opening facing away from the solar thermal collector, the second vertical middle support rod is arranged between the two second inclined side support rods, the second vertical middle support rod is connected to the transmission assembly, and the two second inclined side support rods are respectively connected to the two guide assemblies. Through the above arrangement, the installation stability of the drive mechanism and the shielding member is guaranteed, and the large-area shielding of the solar thermal collector is avoided, thereby reducing the influence on receiving sunlight.

[0010] Furthermore, the distance between the transmission assembly and the two guide assemblies is equal; the angles between the two first inclined side support rods and the first vertical middle support rod are equal, and the angles between the two second inclined side support rods and the second vertical middle support rod are equal. The above arrangement helps to maintain the balance and symmetry of the device structure and reduces the difficulty of design and processing.

[0011] Furthermore, the shielding member is a waterproof cloth, and the guide assembly includes a guide rope and a plurality of guide rings, wherein the guide ring is sleeved on the guide rope and slides with the guide rope. Through the above arrangement, the waterproof cloth can slide with the guide rope via the plurality of guide rings to ensure the shielding effect, and at the same time, since the waterproof cloth, the guide ring and the guide rope are light in weight, the load of the shielding device and the supporting components of the solar energy facility can be reduced.

[0012] Furthermore, it also includes an intelligent system capable of acquiring weather signals, and the intelligent system is electrically connected to the driving mechanism to control the operation of the driving mechanism. Through the above arrangement, the driving mechanism can be accurately and effectively controlled to operate according to weather conditions, thereby improving the degree of automation of the device.

[0013] Furthermore, the driving mechanism also includes a driving component and a limiting component, wherein the limiting component is used to obtain the telescopic position information of the shielding member, and the limiting component is electrically connected to the driving component to control the operation of the driving component; the transmission component is connected to the driving component in a transmission manner, and the transmission component is a power rope, and in the vertical direction, the transmission component is higher than the guide group. Through the above-mentioned settings, the telescopic position of the shielding member can be effectively controlled, the power loss during the driving process can be reduced, and the operating stability and accuracy of the shielding member can be ensured.

[0014] According to another aspect of the present disclosure, a solar energy facility is provided, comprising a solar energy heat collecting device and the above-mentioned shielding device, wherein the shielding device is arranged on the solar energy heat collecting device.

[0015] Another aspect of the present disclosure provides a solar facility that uses the above-mentioned shielding device. Since the shielding device has the advantage of shielding the solar thermal collector in severe weather to protect the surface of the solar thermal collector, the solar facility also has better quality in corresponding aspects.

[0016] Furthermore, the solar energy facility is a trough solar energy equipment, the solar thermal collection device includes a trough concentrator, the first support member and the second support member are respectively arranged at two ends of the trough concentrator in the axial direction; above the trough concentrator, the shielding member is telescopically arranged between the first support member and the second support member along the axial direction of the trough concentrator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0018] Figure 1 is a schematic diagram of a solar facility with a shielding member extended according to the present disclosure, showing a shielding device and a solar thermal collector;

[0019] Figure 2 yes Figure 1 A side view of a solar energy facility of the present disclosure is shown;

[0020] Figure 3 yes Figure 1 A front view of a solar energy facility of the present disclosure is shown;

[0021] Figure 4 yes Figure 1 A top view of a solar energy facility of the present disclosure is shown;

[0022] Figure 5 is a schematic diagram of the partial structure of the shielding device, showing the guide ring, and the partial structure of the guide assembly and the shielding member;

[0023] Figure 6 It is a schematic diagram of the local structure of the driving mechanism, showing the local structure of the driving mechanism.

[0024] Description of Figure Numbers:

[0025] 1. First support member; 11. First vertical middle support rod; 12. First inclined side support rod;

[0026] 2. Second support member; 21. Second vertical middle support rod; 22. Second inclined side support rod;

[0027] 3. Driving mechanism; 31. Transmission assembly; 32. Driving assembly;

[0028] 33. Limiting assembly;

[0029] 4. Shielding parts;

[0030] 5. Guide assembly;

[0031] 6. Guide ring;

[0032] 7. Solar thermal collector; 71. Trough concentrator; 72. Support;

[0033] 10. Shielding device;

[0034] 100. Solar energy facilities. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well.

[0037] Figure 1 is a schematic diagram of a solar facility 100 with the shielding member 4 extended according to the present disclosure, showing the shielding device 10 and the solar thermal collecting device 7 . Figure 2 yes Figure 1 A side view of solar energy facility 100 is shown.

[0038] See also Figure 1 and Figure 2According to a shielding device 10 and a solar energy facility 100 disclosed in the present invention, the shielding device 10 provided in the present invention includes: a first support member 1, a second support member 2, a driving mechanism 3, a shielding member 4 and a guide assembly 5. The first support member 1 is suitable for being arranged on the solar energy collector 7. The second support member 2 is suitable for being arranged on the solar energy collector 7 opposite to the first support member 1; wherein the first support member 1 and the second support member 2 mentioned above can be two independent components or an integrated component connected by a connecting part. The driving mechanism 3 includes a transmission assembly 31, and the transmission assembly 31 is arranged between the first support member 1 and the second support member 2; the transmission assembly 31 mentioned above can be a power rope assembly, a screw assembly, a chain assembly, etc. The shielding member 4 can be telescopically arranged between the first support member 1 and the second support member 2, and the shielding member 4 is suitable for being arranged above the solar energy collector 7; in the longitudinal extension direction of the shielding member 4, at least one end of the shielding member 4 is connected to the transmission assembly 31 to drive the shielding member 4; optionally, the shielding member 4 can be a waterproof cloth, a shielding sheet, a polymer material film, etc., and the shrinkage can be achieved by folding or winding in combination with the material of the shielding member 4; in addition, in the longitudinal extension direction of the shielding member 4, the shielding member 4 can be fixed at one end and connected to the transmission assembly 31 at the other end, or the two ends can be respectively connected to the transmission assembly 31 to move in opposite directions, or there can be multiple connection points between the transmission assembly 31 and the shielding member 4 to disperse the force transmission path between the transmission assembly 31 and the shielding member 4. The guide assembly 5 is arranged along the longitudinal extension direction of the shielding member 4 and slidably cooperates with the shielding member 4; the guide assembly 5 can specifically be a guide rope, a guide rod, a guide chain, etc.; there are multiple guide assemblies 5, and the multiple guide assemblies 5 are arranged in parallel and spaced apart between the first support member 1 and the second support member 2, and the transmission assembly 31 is arranged between any two adjacent guide assemblies 5.

[0039] The shielding member 4 in the present disclosure can be extended under adverse weather conditions to shield the solar thermal collector 7 to protect the surface of the solar thermal collector 7 and prevent snow or ice from falling on the surface of the solar thermal collector 7; and can be retracted under clear weather conditions to allow the solar thermal collector 7 to receive sunlight normally, thereby ensuring the normal operation of the solar thermal collector 7.

[0040] For the above-mentioned shielding device 10, by connecting the first support member 1 and the second support member 2 opposite thereto to the solar thermal collector 7, it is possible to provide an installation position for the driving device, the shielding member 4 and the guide assembly 5; by arranging a retractable shielding member 4 between the first support member 1 and the second support member 2, and connecting at least one end of the shielding member 4 to the transmission assembly 31 of the driving device in the longitudinal extension direction of the shielding member 4, so as to realize the driving of the retractable function of the shielding member 4, so that the shielding member 4 can be unfolded to shield the solar thermal collector 7 under severe weather conditions, thereby avoiding the cleaning of snow or ice on the solar thermal collector 7 to avoid damage to the device Risk, and put it away in clear weather conditions, so that the solar thermal collector 7 can fully receive sunlight and ensure the normal operation of the solar thermal collector 7; a plurality of guide components 5 that can slide with the shielding member 4 are arranged between the first support member 1 and the second support member 2, and the transmission component 31 is arranged between any two adjacent guide components 5. Since severe weather conditions are often accompanied by strong winds, the stability of the shielding member 4 during the extension and retraction process can be ensured by setting the guide component 5, and the unfolded shielding member 4 can be limited, which not only improves the reliability of the shielding device 10 itself, but also ensures that the extended shielding member 4 can fully shield the solar thermal collector 7. The above-mentioned shielding device 10 can be used only for shielding a part of the solar thermal collector, or it can be used for completely shielding the upper surface of the solar thermal collector.

[0041] In some specific embodiments, in the longitudinal extension direction of the shielding member 4, one end of the shielding member 4 is connected to the transmission assembly 31, and the other end is connected to the first support member 1 or the second support member 2. In more detail, one end of the shielding member 4 is a fixed end, and the other end is a movable end. The movable end of the shielding member 4 is driven by the transmission assembly 31 of the driving mechanism 3, so that it extends under bad weather conditions and contracts under clear weather conditions. It should be noted that the first support member 1 and the second support member 2 in the present disclosure are only relatively arranged on the solar collector, and no specific orientation restriction is made, that is, the setting positions of the first support member 1 and the second support member 2 can be interchanged.

[0042] In such Figure 1 and Figure 2In the embodiment shown, optionally, there are two guide assemblies 5, and the two guide assemblies 5 are respectively slidably connected to the two lateral sides of the shielding member 4. In the top view, the orthographic projection of the solar thermal collector 7 is suitable to be between the orthographic projections of the two guide assemblies 5, so that the solar thermal collector 7 can be completely shielded after the shielding member 4 is extended. The transmission assembly 31 is arranged between the two guide assemblies 5, which ensures the stability of the longitudinal edge of the shielding member 4 and prevents the shielding member 4 from being blown away by strong winds under severe weather conditions. In addition, the transmission assembly is arranged between the two guide members, which is more conducive to maintaining the balance of the shielding member 4 during the extension and retraction process when the driving force is applied.

[0043] More specifically, see Figure 1 and Figure 2 The first support member 1 includes a first vertical middle support rod 11 and two first inclined side support rods 12, the two first inclined side support rods 12 form an angle with the opening facing away from the solar energy collector 7, the first vertical middle support rod 11 is arranged between the two first inclined side support rods 12, the first vertical middle support rod 11 is connected to the transmission assembly 31, and the two first inclined side support rods 12 are respectively connected to the two guide assemblies 5; the second support member 2 includes a second vertical middle support rod 21 and two second inclined side support rods 22, the two second inclined side support rods 22 form an angle with the opening facing away from the solar energy collector 7, the second vertical middle support rod 21 is arranged between the two second inclined side support rods 22, the second vertical middle support rod 21 is connected to the transmission assembly 31, and the two second inclined side support rods 22 are respectively connected to the two guide assemblies 5. In more detail, in the vertical direction, one end of the first support member 1 and the second support member 2 are connected to the solar thermal collector 7, and the other end is connected to the transmission assembly 31 and the guide assembly 5, and the distance between the two first inclined side support rods 12 gradually increases in the direction away from the solar thermal collector 7, and similarly, the distance between the two second inclined side support rods 22 also gradually increases. Optionally, the first support member 1 and the second support member 2 can have exactly the same structure and size.

[0044] Continue to see Figure 1 and Figure 2 , the transmission assembly 31 is spaced equidistant from the two guide assemblies 5; the two first inclined side support rods 12 respectively form equal angles with the first vertical middle support rod 11, and the two second inclined side support rods 22 respectively form equal angles with the second vertical middle support rod 21. Preferably, the guide assembly 5 is disposed at one end of the first inclined side support rod 12 and the second inclined side support rod 22 away from the solar thermal collector 7, and the transmission assembly 31 is disposed at one end of the first vertical middle support rod 11 and the second vertical middle support rod 21 away from the solar thermal collector 7.

[0045] Figure 4 yes Figure 1A top view of a solar energy facility 100 of the present disclosure is shown; Figure 5 yes Figure 1 The partial enlarged view of the shielding device 10 shown shows the guide ring 6, and the partial structure of the guide assembly 5 and the shielding member 4. Preferably, the ends of the first vertical middle support rod 11 and the second vertical middle support rod 21 away from the solar thermal collector 7 are both higher than the ends of the first inclined side support rod 12 and the second inclined side support rod 22 away from the solar thermal collector 7, so that when the shielding member 4 is unfolded, it presents a symmetrical slope top with a high middle and gradually lower sides, so that rain and snow can slide off.

[0046] exist Figure 4 and Figure 5 In the embodiment shown, the shielding member 4 is a waterproof cloth, and the guide assembly 5 includes a guide rope and a plurality of guide rings 6, and the guide rings 6 are sleeved on the guide ropes and slidably cooperate with the guide ropes. Preferably, a folding structure can be provided on the waterproof cloth to improve the convenience of the shielding member 4 when it is extended and retracted; optionally, a reinforcing structure such as a reinforcing rod, a convex rib, etc. can also be provided on the waterproof cloth to improve the strength of the shielding member 4.

[0047] In some further embodiments, the shielding device 10 also includes an intelligent system capable of acquiring weather signals, and the intelligent system is electrically connected to the drive mechanism 3 to control the operation of the drive mechanism 3. Optionally, the intelligent system is connected to the network and can receive weather information in real time, and control the shielding device 10 according to the weather information; optionally, the intelligent system has a weather sensor, which can sense the weather in real time, and control the shielding device 10 accordingly according to the sensor information. Through the intelligent system, the solar thermal collector 7 can be shielded in time during winter precipitation, and can be retracted and folded in time after the precipitation stops, thereby increasing the working time of the solar thermal collector 7; thereby avoiding the risk of damage to the device due to manual or equipment cleaning; in addition, the intelligent system can operate for a long time at a low cost, saving a lot of manpower costs.

[0048] Figure 6 yes Figure 1 The partial enlarged view of the driving mechanism 3 shown shows the partial structure of the driving mechanism 3.

[0049] In combination Figure 1 , Figure 2 and Figure 6In the illustrated embodiment, the driving mechanism 3 further includes a driving component 32 and a limiting component 33. The limiting component 33 is used to obtain the telescopic position information of the shielding member 4. The limiting component 33 is electrically connected to the driving component 32 to control the operation of the driving component 32. The transmission component 31 is transmission-connected to the driving component 32. The transmission component 31 is a power rope. In the vertical direction, the transmission component 31 is higher than the guide component 5. In more detail, the above-mentioned limiting component 33 can be an image sensor and a control device, which is used to extend and retract the shielding member 4 to a preset position. The above-mentioned limiting component 33 can also be a contact position switch or a travel switch. When the shielding member 4 reaches the position of the limiting component 33, the driving mechanism 3 stops driving the shielding member 4. Specifically, the driving component 32 is a control motor, and the power rope is transmission-connected to the control motor. Preferably, the control motor can control the traction direction, traction force and traction speed of the power rope. Optionally, at least part of the power rope is arranged above the shielding member 4. It should be noted that Figure 6 The embodiment shown in which the drive assembly 32 is arranged on the first vertical intermediate support rod 11 is only one implementation form of the present disclosure, and the drive assembly 32 can also be arranged on the second vertical intermediate support rod 21; preferably, a reinforcing structure for strengthening the strength of the support rod 21, such as ribs, reinforcing ribs, etc., can be formed on the first vertical intermediate support rod 11 or the second vertical intermediate support rod 21 on which the drive assembly 32 is arranged.

[0050] According to another aspect of the present disclosure, a solar energy facility 100 is provided, comprising a solar energy heat collecting device 7 and the above-mentioned shielding device 10 , wherein the shielding device 10 is arranged on the solar energy heat collecting device 7 .

[0051] The solar facility 100 adopts the above-mentioned shielding device 10. Since the shielding device 10 has the advantage of being able to shield the solar thermal collector 7 in bad weather to protect the surface of the solar thermal collector 7, the solar facility 100 also has good quality in corresponding aspects.

[0052] Figure 3 yes Figure 1 A front view of a solar energy facility 100 of the present disclosure is shown.

[0053] like Figures 1 to 3 As shown, in this embodiment, the solar facility 100 is a trough solar device, and the solar thermal collector 7 includes a trough concentrator 71. The trough concentrator 71 is a semi-cylindrical shell structure or a semi-cylindrical shell structure with a concave surface facing upward. The first support member 1 and the second support member 2 are respectively arranged at two ends of the trough concentrator 71 in the axial direction, and the axial direction is perpendicular to Figure 2The plane shown; above the trough concentrator 71, the shielding member 4 is telescopically arranged between the first support member 1 and the second support member 2 along the axial direction of the trough concentrator 71. In more detail, the solar heat collector 7 of the trough solar energy equipment also includes a support 72, the trough concentrator 71 is arranged on the support 72, and a heat collecting pipe (not shown in the figure) is also arranged along the axial direction of the trough concentrator 71. Based on the structure of the trough concentrator 71, the snow and ice in the trough concentrator 71 are difficult to be discharged by themselves, and when cleaning the trough concentrator 71, the tool is very easy to collide with the mirror surface of the trough concentrator 71 and the heat collecting pipe to cause damage, therefore, preferably, the shielding member 4 is stretched out to completely cover the trough concentrator 71.

[0054] The technical effect of the solution disclosed in the present invention is that it can be extended to shield the solar thermal collector 7 in severe weather conditions to protect the surface of the solar thermal collector 7, and can be retracted in clear weather to avoid blocking the collection of solar energy, thereby ensuring the normal operation of the solar energy facility 100.

[0055] The above are only preferred embodiments of the present disclosure. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present disclosure. These improvements and modifications should also be regarded as the protection scope of the present disclosure.

Claims

1. A shielding device (10), characterized in that: include: A first support member (1), wherein the first support member (1) is suitable for being arranged on a solar thermal collector (7); A second support member (2), the second support member (2) being suitable for being arranged on the solar thermal collector (7) opposite to the first support member (1); A driving mechanism (3), the driving mechanism (3) comprising a transmission assembly (31), the transmission assembly (31) being arranged between the first support member (1) and the second support member (2); A shielding member (4), the shielding member (4) being telescopically arranged between the first supporting member (1) and the second supporting member (2), and the shielding member (4) being suitable for being arranged above the solar thermal collector (7); in the longitudinal extension direction of the shielding member (4), at least one end of the shielding member (4) is connected to the transmission assembly (31) to drive the shielding member (4); A guide assembly (5), wherein the guide assembly (5) is arranged along the longitudinal extension direction of the shielding member (4) and is slidably matched with the shielding member (4); there are a plurality of guide assemblies (5), and the plurality of guide assemblies (5) are arranged parallel to each other and spaced apart between the first support member (1) and the second support member (2); and the transmission assembly (31) is arranged between any two adjacent guide assemblies (5).

2. The shielding device (10) according to claim 1, characterized in that: In the longitudinal extension direction of the shielding member (4), one end of the shielding member (4) is connected to the transmission assembly (31), and the other end is connected to the first support member (1) or the second support member (2).

3. The shielding device (10) according to claim 2, characterized in that: The number of the guide assemblies (5) is two, and the two guide assemblies (5) are respectively slidably connected to the two sides of the shielding member (4) in a lateral direction. In the top view direction, the orthographic projection of the solar thermal collector (7) is suitable to be located between the orthographic projections of the two guide assemblies (5), and the transmission assembly (31) is arranged between the two guide assemblies (5).

4. The shielding device (10) according to claim 3, characterized in that: The first support member (1) comprises a first vertical middle support rod (11) and two first inclined side support rods (12), the two first inclined side support rods (12) forming an angle with an opening facing away from the solar thermal collector (7), the first vertical middle support rod (11) being arranged between the two first inclined side support rods (12), the first vertical middle support rod (11) being connected to the transmission assembly (31), and the two first inclined side support rods (12) being connected to the two guide assemblies (5) respectively; The second support member (2) comprises a second vertical middle support rod (21) and two second inclined side support rods (22), the two second inclined side support rods (22) forming an angle with an opening facing away from the solar thermal collector (7), the second vertical middle support rod (21) being arranged between the two second inclined side support rods (22), the second vertical middle support rod (21) being connected to the transmission assembly (31), and the two second inclined side support rods (22) being respectively connected to the two guide assemblies (5).

5. The shielding device (10) according to claim 4, characterized in that: The transmission assembly (31) is spaced equidistantly from the two guide assemblies (5); The two first inclined side support rods (12) have equal included angles with the first vertical middle support rod (11); The two second inclined side support rods (22) have equal included angles with the second vertical middle support rod (21).

6. The shielding device (10) according to claim 5, characterized in that: The shielding member (4) is a waterproof cloth, and the guide assembly (5) comprises a guide rope and a plurality of guide rings (6). The guide rings (6) are sleeved on the guide rope and slidably cooperate with the guide rope.

7. The shielding device (10) according to claim 1, characterized in that: It also includes an intelligent system capable of acquiring weather signals, wherein the intelligent system is electrically connected to the driving mechanism (3) to control the operation of the driving mechanism (3).

8. The shielding device (10) according to any one of claims 1 to 7, characterized in that: The driving mechanism (3) further comprises a driving component (32) and a limiting component (33); the limiting component (33) is used to obtain telescopic position information of the shielding member (4); the limiting component (33) is electrically connected to the driving component (32) to control the operation of the driving component (32); the transmission component (31) is transmission-connected to the driving component (32); the transmission component (31) is a power rope; in the vertical direction, the transmission component (31) is higher than the guide component (5).

9. A solar energy facility (100), characterized in that: It comprises a solar thermal collector (7) and a shielding device (10) according to any one of claims 1 to 8, wherein the shielding device (10) is arranged on the solar thermal collector (7).

10. The solar energy facility (100) according to claim 9, characterized in that: The solar facility (100) is a trough solar device, the solar thermal collector (7) comprises a trough concentrator (71), and the first support member (1) and the second support member (2) are respectively arranged at two ends of the trough concentrator (71) in the axial direction; Above the trough concentrator (71), the shielding member (4) is telescopically arranged between the first supporting member (1) and the second supporting member (2) along the axial direction of the trough concentrator (71).

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