Groove type photo-thermal power station protection assembly and groove type photo-thermal power station system

Abstract

The utility model discloses a groove type photo-thermal power station protection assembly and a groove type photo-thermal power station system, relates to the field of wind and sand prevention, and is used for protecting a groove type photo-thermal power station and reducing accumulated sand of the groove type photo-thermal power station. The groove type photo-thermal power station protection assembly comprises a first protection net and a second protection net. The first protective net is parallel to the first direction; the second protective net is parallel to the second direction, and the first direction intersects with the second direction. The first protective nets and the second protective nets are alternately arranged and are in butt joint, and the two first protective nets and the second protective net located between the two first protective nets form a sand accumulation area with an opening in one side. According to the technical scheme, the first protective net and the second protective net jointly form the sand accumulation area with an opening in one side, and sand wind can be gathered in the sand accumulation area through the opening and cannot reach the groove type photo-thermal power station easily. According to the technical scheme, sand and dust in the trough type photo-thermal power station can be accurately accumulated, and the influence of the sand and dust on the trough type photo-thermal power station is reduced.

Description

Technical Field

[0001] The utility model relates to the field of wind and sand prevention, and in particular to a trough type solar thermal power station protection component and a trough type solar thermal power station system. Background Art

[0002] As one of the important types of solar power generation, trough CSP power stations are the fastest growing clean energy. Deserts, Gobi, and wastelands are the areas with the richest solar energy resources, and are also the main areas for the construction of trough CSP power stations. Due to the structural characteristics and power generation principles of trough CSP power stations, the sand and dust in deserts, Gobi, and wastelands have a great impact on them. Sand and dust can reduce the power generation efficiency of trough CSP power stations and damage components. At present, the sand and dust problem of trough CSP power stations is mainly solved by cleaning and dust removal.

[0003] The inventors have found that there are at least the following problems in the prior art: deserts, Gobi, wastelands and other areas are affected by the arid environment and have frequent sandstorms, and cleaning and dust removal cannot meet the dust removal needs of trough-type solar thermal power stations. Utility Model Content

[0004] The utility model provides a trough type solar thermal power station protection component and a trough type solar thermal power station system, which are used to protect the trough type solar thermal power station and reduce sand accumulation in the trough type solar thermal power station.

[0005] The present invention provides a trough type solar thermal power station protection assembly, comprising a first protection net and a second protection net. The first protection net is parallel to a first direction; the second protection net is parallel to a second direction, and the first direction and the second direction intersect. The first protection net and the second protection net are alternately arranged and butted, wherein the two first protection nets and the second protection net located therebetween form a sand accumulation area with an opening on one side.

[0006] In some embodiments, the opening directions of two adjacent sand accumulation areas are opposite.

[0007] In some embodiments, in the top view direction, the first protection net and the second protection net form an S-shaped fold line.

[0008] In some embodiments, the protection assembly of the trough type solar thermal power station further includes a mounting member, which is fixed to the ground; each of the first protection nets is fixed by two of the mounting members, and each of the second protection nets is fixed by two of the mounting members.

[0009] In some embodiments, the first protective net and the second protective net that are connected to each other share the same mounting component.

[0010] In some embodiments, the protective assembly of the trough type solar thermal power station further includes plants, and the plants are located in the center of the sand accumulation area.

[0011] An embodiment of the utility model further provides a trough type solar thermal power station system, comprising a plurality of trough type reflectors and a trough type solar thermal power station protection component provided by any technical solution of the utility model, wherein the trough type solar thermal power station protection component is arranged between two adjacent trough type reflectors.

[0012] In some embodiments, a plurality of the trough type solar thermal power station protection components are arranged between two adjacent trough type reflectors, and the two adjacent trough type solar thermal power station protection components are arranged at intervals along the second direction, and the spacing between the two adjacent trough type solar thermal power station protection components is a set value.

[0013] In some embodiments, the spacing along the second direction is 4 meters to 5 meters.

[0014] In some embodiments, there is a gap between each of the trough reflectors and the ground, and at least one of the trough reflectors is provided with at least one trough solar thermal power station protection component at the bottom.

[0015] In some embodiments, at least one trough solar thermal power station protection component is disposed at the bottom of each trough reflector.

[0016] In some embodiments, the trough solar thermal power plant system further comprises:

[0017] A pair of sand-blocking nets are arranged at two ends of the trough reflector along the first direction, and a plurality of trough reflectors and the trough solar thermal power station protection assembly are all located between the pair of sand-blocking nets.

[0018] The trough type CSP power station protection assembly provided by the above technical solution includes a first protection net and a second protection net. The first protection net and the second protection net together form a sand accumulation area with only one side opening. The wind and sand passing through the opening can be gathered in the sand accumulation area and are difficult to reach the trough type CSP power station. The above technical solution can accurately accumulate sand and dust in the trough type CSP power station, reducing the impact of sand and dust on the trough type CSP power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a protective assembly for a trough-type solar thermal power station provided in an embodiment of the utility model.

[0021] Figure 2A schematic diagram of the installation relationship between the protective assembly and mounting parts of a trough-type solar thermal power station and the first protective net provided in an embodiment of the utility model.

[0022] Figure 3 This is a schematic front view of a trough type solar thermal power station system provided in some embodiments of the utility model.

[0023] Figure 4 A schematic side view of a trough solar thermal power plant system provided in some embodiments of the present invention. A schematic cross-sectional view of a sealing component of a photovoltaic system.

[0024] Figure 5 A schematic front view of a trough type solar thermal power station system provided in another embodiment of the utility model.

[0025] Figure 6 A schematic side view of a trough type solar thermal power station system provided in another embodiment of the utility model.

[0026] Figure 7 A schematic front view of a trough type solar thermal power station system provided in yet another embodiment of the utility model.

[0027] Reference numerals:

[0028] 1. First protective net; 2. Second protective net; 3. Mounting parts; 4. Plants; 5. Trough reflector; 6. Sand blocking net; P. Sand accumulation area. DETAILED DESCRIPTION

[0029] Combine the following Figure 1 to Figure 7 The technical solution provided by the utility model is described in more detail. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​described in these embodiments should be interpreted as merely examples and not as limitations.

[0030] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of also including other elements.

[0031] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediate device, or may not be directly connected to the other devices but have an intermediate device.

[0032] All terms used in the present disclosure, including technical terms or scientific terms, have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment are considered part of the specification.

[0034] The dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. In the drawings, the same reference numerals are attached to common structural elements or structural elements of the same type, and their repeated descriptions are appropriately omitted.

[0035] After research, the inventors found that the sand and dust accumulation fence of the trough type solar thermal power station is a kind of sand and dust protection suitable for the trough type solar thermal power station in desert areas such as deserts and Gobi. The inventors found that although desert areas such as deserts and Gobi are rich in solar energy resources and are the main areas for the construction of trough type solar thermal power stations, they are also facing serious sand and dust hazards. Sand and dust have a serious impact on trough type solar thermal power stations. Its main impacts include: (1) Dust is deposited in the water collection trough and adheres to the mirror surface of the solar collector trough, which seriously affects the reflectivity of the mirror surface and reduces the power generation efficiency of the components. (2) When dust encounters fog, precipitation and other conditions, the dust is prone to chemical reactions, causing corrosion to the mirror surface and reducing the service life of the components. (3) Dust can easily cause the light collecting trough to automatically track the rotating brake bearings and components, causing system failures. (4) Wind and sand flow can easily cause abrasion and other hazards to the solar thermal components, causing component damage and reducing service life. (5) Wind and sand flow can also easily cause surface wind erosion, sand accumulation, etc., resulting in spatial differences in surface erosion.

[0036] Through further research, the inventors found that it is not easy to prevent and control dust in trough-type CSP plants. This is because: (1) The array of trough-type CSP plants is in rows, and the light collecting mirrors rotate every day, which also causes spatial differences in the flow field inside the power plant. The airflow is mainly concentrated in the corridors between the arrays, which is also the area where wind and sand are more active. (2) CSP plants cannot use materials such as high vertical sand barriers, which are easy to cause shading and easily affect the pedestrians and vehicles that are left in the power plant for daily operation and maintenance.

[0037] like Figure 1 As shown, in the description of the specific embodiments below, for the convenience of explanation, the direction parallel to the length of the reflector is defined as the first direction S1, and the direction perpendicular to the length of the reflector is defined as the second direction S2. S1 is Figure 1 In the vertical direction shown, S2 is Figure 1 Horizontal direction shown.

[0038] See also Figure 1 The embodiment of the utility model provides a trough type solar thermal power station protection assembly, including a first protection net 1 and a second protection net 2. The first protection net 1 is perpendicular to the first direction; the second protection net 2 is perpendicular to the second direction, and the first direction and the second direction intersect. The first protection net 1 and the second protection net 2 are alternately arranged and butted, wherein the two first protection nets 1 and the second protection net 2 located therebetween form a sand accumulation area P with an opening on one side.

[0039] like Figure 1 As shown, the right side of the sand accumulation area P surrounded by ABCD is an opening, and the left side of the sand accumulation area P surrounded by CDEF is an opening. The entire trough-type solar thermal power station protection assembly is arranged along the first direction in an alternating manner with left and right openings.

[0040] The first protection net 1 and the second protection net 2 are made of synthetic fibers such as high-strength polyester, nylon, and polypropylene, or metal materials such as steel wire. The first protection net 1 and the second protection net 2 made of these materials have excellent tensile strength and are durable. The material, structure, and mesh size of the first protection net 1 and the second protection net 2 can be the same or different.

[0041] In some embodiments, the length of the first protection net 1 is greater than the length of the second protection net 2. In some embodiments, the length L of the first protection net 1 is 1 to 2 times the length W of the second protection net 2. In some embodiments, the length L of the first protection net 1 is 1.0 m, and the length W of the second protection net 2 is 1.0 m. In other embodiments, the length L of the first protection net 1 is 1.0 m, and the length W of the second protection net 2 is 0.5 m.

[0042] The above technical solution can accurately accumulate dust in the power station site and reduce the impact of dust on components.

[0043] In some embodiments, the opening directions of two adjacent sand accumulation areas P are opposite. The opening directions of two adjacent sand accumulation areas P are opposite, and no matter which direction the wind blows from along the second direction, the two sand accumulation areas P with opposite opening directions can serve the purpose of accumulating sand. If the wind blows from the first direction, it can be blocked by the first protective net 1, and the accumulated sand will not enter the sand accumulation area P.

[0044] See also Figure 1 In the top view, the first protection net 1 and the second protection net 2 form an S-shaped broken line. In this shape, the overall structure of the first protection net 1 and the second protection net 2 is more solid, has a longer service life, and is not easily damaged by blowing.

[0045] See also Figure 2 In some embodiments, the protection assembly of the trough type solar thermal power station further includes a mounting member 3, which is fixed to the ground; each first protection net 1 is fixed by two mounting members 3, and each second protection net 2 is fixed by two mounting members 3.

[0046] The mounting member 3 is a metal column, the bottom end of which is sharp and can be easily inserted below the ground. The top of the metal column is provided with a protrusion, the size of which is larger than the diameter of the metal column. The edges of the first protective net 1 and the second protective net 2 are provided with through holes, and the metal column passes through the through holes. The protrusions at the ends of the metal columns play a protective and blocking role, making it difficult for the first protective net 1 and the second protective net 2 to detach from the top of the metal column.

[0047] In other embodiments, the mounting member 3 is provided with a slit and a fixed end at the end, and the edges of the first protection net 1 and the second protection net 2 can be inserted into the slit. The fixed end is fixed to the first protection net 1 and the second protection net 2. The first protection net 1 and the second protection net 2 are installed and fixed together by the slit and the fixed end.

[0048] In some embodiments, the first protective net 1 and the second protective net 2 connected to each other are each equipped with a mounting member 3 at the joint. There are two mounting members 3 at the joint of the first protective net 1 and the second protective net 2, one of which passes through the through hole of the first protective net 1 and is inserted into the ground, and the other passes through the through hole of the second protective net 2 and is inserted into the ground.

[0049] The height of the first protection net 1 and / or the second protection net 2 is H, and H is, for example, 15 cm to 20 cm, specifically, 15 cm, 18 cm, and 20 cm. The first protection net 1 and the second protection net 2 are set to the above heights to effectively block sand blowing in deserts and other areas, and reduce sand blowing into the grooves of the trough reflector 5 of the trough solar thermal power station.

[0050] In some embodiments, the trough-type CSP power station protection assembly further includes plants 4, which are located at the center of the sand accumulation area P. Plants 4 may be sand-fixing shrubs. The above technical solution effectively structures the dust accumulation fence, sand-fixing plants and trough-type reflectors 5, effectively suppresses dust in the site, increases ecological restoration, and provides technical support for the construction of eco-friendly CSP power stations.

[0051] See also Figure 3 and Figure 4 The embodiment of the utility model further provides a trough type CSP power station system, comprising a plurality of trough type reflectors 5 and a trough type CSP power station protection assembly provided by any technical solution of the utility model, wherein the trough type CSP power station protection assembly is arranged between two adjacent trough type reflectors 5, specifically, the trough type CSP power station protection assembly is arranged in the middle of two adjacent trough type reflectors 5. According to different wind directions, the trough type CSP power station protection assembly can protect the trough type reflectors 5 located on both sides of the trough type reflectors 5.

[0052] In some embodiments, a plurality of trough-type CSP power station protection components are arranged between two adjacent trough-type reflectors 5, and the two adjacent trough-type CSP power station protection components are arranged at intervals along the second direction, and the spacing between the two adjacent trough-type CSP power station protection components is a set value. The length of each trough-type CSP power station protection component along the first direction S1 is 10m to 15m, specifically, for example, 10m, 12m, and 15m.

[0053] In some embodiments, the spacing between two adjacent trough-type CSP power station protection components along the first direction is 4 meters to 5 meters, that is, the spacing along the first direction is 4 meters to 5 meters. The spacing between two adjacent trough-type CSP power station protection components is used for the passage of operation and maintenance vehicles and personnel. The above technical solution is scientifically designed, fully considers the passage of operation and maintenance vehicles and personnel, has little impact on the power station, and is highly scalable.

[0054] In some embodiments, there is a gap G between each trough reflector 5 and the ground, and at least one trough solar thermal power station protection component is disposed at the bottom of at least one of the trough reflectors 5 .

[0055] Taking the example of a plurality of trough-type solar thermal power station protection components arranged at the bottom of each trough-type reflector 5, the spacing between two adjacent trough-type solar thermal power station protection components is also set to 4 meters to 5 meters. This spacing allows personnel and vehicles to pass through the bottom of the trough-type reflector 5 conveniently, and has almost no impact on the structure of the trough-type solar thermal power station itself, and has strong scalability.

[0056] In some embodiments, at least one trough solar thermal power station protection component is disposed at the bottom of each trough reflector 5 .

[0057] The trough solar thermal power station system provided by the above technical solution can efficiently gather sand and dust around the trough reflector 5, and the space occupied is the gap between two rows of trough reflectors 5 and the idle space at the bottom of the trough reflector 5. The space utilization rate is high, and the impact of the trough solar thermal power station protection components on the normal operation of the trough solar thermal power station is reduced. It is suitable for large-scale trough solar thermal power stations, especially large-scale trough solar thermal power stations in desert areas such as deserts and Gobi in my country.

[0058] See also Figure 5 and Figure 6 In other embodiments, the trough CSP power station protection component is not provided at the bottom of the trough reflector 5, and the trough CSP power station protection component is only provided between two adjacent trough reflectors 5. With this structural mode, the wind and sand protection cost of the trough CSP power station system is lower, the installation and arrangement of the trough CSP power station protection component is more efficient, and the wind and sand protection effect is good.

[0059] See also Figure 7 In some other embodiments, the trough type solar thermal power station system further includes a pair of sand blocking nets 6, which are arranged at two ends of the trough type reflector 5 along the first direction, and the plurality of trough type reflectors 5 and the trough type solar thermal power station protection components are all located between the pair of sand blocking nets 6.

[0060] The sand-blocking net 6 can be made of synthetic fibers such as high-strength polyester, nylon, and polypropylene, or metal materials such as steel wire, so as to achieve a good sand-blocking effect and a long service life. The size of the sand-blocking net 6 is selected according to needs. In areas with high wind and sand speed, a smaller mesh is used for better blocking effect. The sand-blocking net 6 is installed and fixed by components such as columns.

[0061] At the end of two adjacent rows of trough reflectors 5 of the sand-blocking net 6, the trough-type solar thermal power station protection assembly is located between the two rows of trough reflectors 5. The number of trough-type solar thermal power station protection assemblies between the two rows of trough reflectors 5 is one or more. Along the first direction S1, multiple trough-type solar thermal power station protection assemblies are arranged continuously or a spacing M allowing people and vehicles to pass is set between two adjacent trough-type solar thermal power station protection assemblies. One or more trough-type solar thermal power station protection assemblies are also set at the bottom of each row of trough reflectors 5. The trough-type solar thermal power station protection assemblies located at the bottom of the trough reflectors 5 are arranged continuously along the first direction S1 or a spacing M allowing people and vehicles to pass is set between two adjacent trough-type solar thermal power station protection assemblies.

[0062] exist Figure 7In the illustrated embodiment, the trough solar thermal power station protection assembly can be arranged only between two adjacent trough reflectors 5, or between two adjacent trough reflectors 5 and at the bottom of the trough reflectors 5. In the case of relatively small wind and sand, the former arrangement can achieve a relatively ideal protection effect, and has high installation efficiency and low implementation cost. In the case of large wind and sand, the latter arrangement has a better protection effect.

[0063] The above technical scheme is applicable to trough-type solar thermal power stations in desert areas such as deserts and Gobi, and has at least the following advantages: it can accurately accumulate sand and dust in the power station site, reducing the impact of sand and dust on components; the design is scientific, fully considering the passage of operation and maintenance vehicles and personnel, with less impact on the power station and strong applicability; the dust accumulation fence, sand-fixing plants and trough-type reflectors 5 structures are effectively fully structured, effectively suppressing sand and dust in the site, increasing ecological restoration, and providing technical support for the construction of eco-friendly solar thermal power stations.

[0064] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the protection content of the present utility model. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0065] In the description of the present utility model, each technical feature can be combined with other technical features where feasible.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A parasitic trough solar thermal power station protection assembly, characterized in that: include: A first protection net (1), wherein the first protection net (1) is perpendicular to a first direction; as well as A second protective net (2), the second protective net (2) being perpendicular to a second direction, the first direction and the second direction intersecting; The first protection nets (1) and the second protection nets (2) are arranged alternately and butted against each other, wherein the two first protection nets (1) and the second protection net (2) located therebetween form a sand accumulation area (P) with one side open.

2. The parabolic trough solar thermal power station protection assembly according to claim 1, characterized in that: The opening directions of two adjacent sand accumulation areas (P) are opposite; and / or the ratio of the length of the first protection net (1) to the length of the second protection net (2) is 1 to 2.

3. The parabolic trough solar thermal power station protection assembly according to claim 1, characterized in that: In the top view direction, the first protection net (1) and the second protection net (2) form an S-shaped broken line.

4. The parabolic trough solar thermal power station protection assembly according to claim 1, characterized in that: Also includes: The mounting member (3) is fixed to the ground; each of the first protective nets (1) is fixed by two of the mounting members (3), and each of the second protective nets (2) is fixed by two of the mounting members (3).

5. The parabolic trough solar thermal power station protection assembly according to claim 4, characterized in that: The first protective net (1) and the second protective net (2) connected to each other are each equipped with a mounting member (3) at the connection point.

6. The parabolic trough solar thermal power station protection assembly according to claim 1, characterized in that: Also includes: Plants (4) are located at the center of the sand accumulation area (P).

7. A trough type solar thermal power station system, characterized in that: include: A plurality of trough reflectors (5); as well as The trough type solar thermal power station protection component according to any one of claims 1 to 6, wherein the trough type solar thermal power station protection component is arranged between two adjacent trough type reflectors (5).

8. The trough type CSP power station system according to claim 7, characterized in that: A plurality of the trough type solar thermal power station protection components are arranged between two adjacent trough type reflectors (5), and the two adjacent trough type solar thermal power station protection components are arranged at intervals along the second direction, and the spacing (M) between the two adjacent trough type solar thermal power station protection components is a set value.

9. The trough type CSP power station system according to claim 8, characterized in that: The value of the spacing along the first direction is 4 meters to 5 meters.

10. The trough type CSP power station system according to claim 7, characterized in that: There is a gap between each of the trough reflectors (5) and the ground, and at least one of the trough reflectors (5) is provided with at least one trough solar thermal power station protection component at the bottom.

11. The trough type CSP power station system according to claim 7, characterized in that: At least one trough type solar thermal power station protection component is arranged at the bottom of each trough type reflector (5).

12. The trough type CSP power station system according to claim 7, characterized in that: Also includes: A pair of sand-blocking nets (6) are arranged at two ends of the trough reflector (5) along the first direction, and the plurality of trough reflectors (5) and the trough solar thermal power station protection assembly are both located between the pair of sand-blocking nets (6).

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