Stiffened plate, cooling water system room and offshore wind power converter platform

Abstract

The invention discloses a stiffened plate, a cooling water system room and an offshore wind power converter platform. The stiffened plate comprises a plate body which is provided with an outer side face and an inner side face which are opposite in the thickness direction of the plate body; the stiffening rib comprises a first wing plate, a second wing plate and a web plate, the first wing plate is arranged on the inner side face, one end of the web plate is connected with the first wing plate, the other end of the web plate is connected with the second wing plate, the width of the first wing plate is equal to that of the second wing plate, and the width of the second wing plate is equal to that of the web plate. The width of each of the first wing plate and the second wing plate is smaller than or equal to a first preset value, the height of the web plate is larger than or equal to a second preset value and smaller than or equal to a third preset value, and the ratio of the height of the web plate to the width of the first wing plate is larger than or equal to a fourth preset value. The stiffened plate has the advantages of high strength, high rigidity, light weight and the like.

Description

Technical Field

[0001] This invention relates to stiffened plates, and also to cooling water systems including stiffened plates and offshore wind power converter platforms. Background Technology

[0002] Offshore wind power converter platforms refer to offshore stations built in high-voltage direct current transmission systems to convert alternating current (AC) to direct current (DC) or vice versa, in order to meet the power system's requirements for safety, stability, and power quality.

[0003] my country's onshore DC power transmission technology has developed rapidly, but there is a huge gap in the collaborative design and construction of offshore flexible DC power transmission converter platforms, with the weight per unit power being 1.5-2 times that of advanced foreign levels. There is an urgent need to develop lightweight, high-power-density offshore wind power converter platforms that can withstand strong earthquakes, typhoons, and erosion in marine environments. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a stiffening plate, and a cooling water system including the stiffening plate, as well as an offshore wind power converter platform.

[0005] The stiffening plate of the cooling water system according to the present invention comprises: a plate body having an outer side and an inner side opposite to each other in its thickness direction; and a stiffening rib comprising a first wing plate, a second wing plate, and a web plate, wherein the first wing plate is disposed on the inner side side, one end of the web plate is connected to the first wing plate, and the other end of the web plate is connected to the second wing plate, wherein the width of the first wing plate is equal to the width of the second wing plate, the width of each of the first wing plate and the second wing plate is less than or equal to a first preset value, the height of the web plate is greater than or equal to a second preset value and less than or equal to a third preset value, and the ratio of the height of the web plate to the width of the first wing plate is greater than or equal to a fourth preset value.

[0006] The stiffening plate in the cooling water system according to the present invention has the advantages of high strength, high rigidity and light weight.

[0007] Optionally, the thickness of the plate is greater than or equal to 9 cm and less than or equal to 10 cm.

[0008] Optionally, the width of each of the first wing and the second wing is less than or equal to 6 centimeters.

[0009] Optionally, the height of the web is greater than or equal to 14 cm and less than or equal to 16 cm.

[0010] Optionally, the thickness of the web is less than the width of the first wing, and the thickness of the web is less than or equal to 3 centimeters.

[0011] Optionally, the thickness direction of the first wing plate is consistent with the thickness direction of the second wing plate, the height direction of the web plate is consistent with the thickness direction of the first wing plate, and the stiffening rib is I-shaped.

[0012] Optionally, the ratio of the height of the web to the width of the first wing is greater than or equal to 3:1 and less than or equal to 5:1.

[0013] The cooling water system compartment of the present invention includes: an outer shell, the outer shell including a stiffening plate, the stiffening plate being the stiffening plate of the cooling water system compartment of the present invention; and a plate heat exchanger, the plate heat exchanger being disposed inside the outer shell.

[0014] The cooling water system according to the present invention has the advantages of high strength, high rigidity, and light weight.

[0015] Optionally, the length of the outer shell is 18-22 meters, and the width of the outer shell is 13-17 meters.

[0016] The offshore wind power converter platform of the present invention includes the cooling water system chamber described in the present invention.

[0017] The offshore wind power converter platform according to the present invention has the advantages of stable structure and light weight. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the stiffening plate between the cooling water systems according to an embodiment of the present invention. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] The stiffening plate 100 between cooling water systems according to an embodiment of the present invention is described below with reference to the accompanying drawings. Figure 1 As shown, the stiffening plate 100 in the cooling water system according to an embodiment of the present invention includes a plate body 1 and stiffening ribs 2. The plate body 1 has an outer surface 11 and an inner surface 12 opposite to each other in its thickness direction. In other words, the outer surface 11 and the inner surface 12 are opposite to each other in the thickness direction of the plate body 1. The stiffening rib 2 includes a first wing plate 21, a second wing plate 22, and a web plate 23. The first wing plate 21 is provided on the inner surface 12, one end of the web plate 23 is connected to the first wing plate 21, and the other end of the web plate 23 is connected to the second wing plate 22.

[0021] The width of the first wing plate 21 is equal to the width of the second wing plate 22. The width of each of the first wing plate 21 and the second wing plate 22 is less than or equal to a first preset value. The height of the web plate 23 is greater than or equal to a second preset value and less than or equal to a third preset value. The ratio of the height of the web plate 23 to the width of the first wing plate 21 is greater than or equal to a fourth preset value. In other words, the ratio of the height of the web plate 23 to the width of the second wing plate 22 is greater than or equal to the fourth preset value.

[0022] According to an embodiment of the present invention, the stiffening plate 100 between cooling water systems has a smaller width for each of the first wing plate 21 and the second wing plate 22 by making the width of each of them less than or equal to a first preset value. According to an embodiment of the present invention, the stiffening plate 100 between cooling water systems has a larger height for the web plate 23 by making the height of the web plate 23 greater than or equal to a second preset value and less than or equal to a third preset value.

[0023] This allows for a reduction in the weight of the stiffening plate 100 while meeting strength and stiffness requirements, thereby reducing the weight of the cooling water system and the seawater wind power converter platform. Therefore, the stiffening plate 100 in the cooling water system according to this embodiment of the invention has advantages such as high strength, high stiffness, and light weight.

[0024] like Figure 1 As shown, the stiffening plate 100 includes a plate body 1 and stiffening ribs 2. The plate body 1 may be flat. The plate body 1 has an outer surface 11 and an inner surface 12 opposite to each other in its thickness direction. Optionally, the thickness of the plate body 1 is greater than or equal to 9 cm and less than or equal to 10 cm. This allows for further reduction of the weight of the stiffening plate 100 while meeting strength and stiffness requirements.

[0025] The stiffening rib 2 includes a first flange 21, a second flange 22, and a web 23. The first flange 21 is disposed on the inner side 12 of the plate 1; for example, the first flange 21 can be welded to the inner side 12 of the plate 1. One end of the web 23 is connected to the first flange 21, and the other end of the web 23 is connected to the second flange 22.

[0026] Specifically, the web 23 has a first end and a second end opposite to each other in its height direction. The first end of the web 23 is welded to the first wing 21, and the second end of the web 23 is welded to the second wing 22. Furthermore, the first wing 21, the second wing 22, and the web 23 can be integrally formed.

[0027] like Figure 1As shown, the thickness direction of the first flange 21 is consistent with the thickness direction of the second flange 22. Therefore, the width direction of the first flange 21 is consistent with the width direction of the second flange 22, and the length direction of the first flange 21 is consistent with the length direction of the second flange 22, meaning the first flange 21 is parallel to the second flange 22. The height direction of the web 23 is consistent with the thickness direction of the first flange 21 (and second flange 22), and the stiffening rib 2 is I-shaped. This makes the structure of the stiffening rib 2 more rational, thereby further improving the strength and stiffness of the stiffening plate 100 and further reducing its weight. The height direction of the web 23 is as follows... Figure 1 As shown by arrow A in the diagram.

[0028] The width of the first wing plate 21 is equal to the width of the second wing plate 22, and the width of each of the first wing plate 21 and the second wing plate 22 is less than or equal to a first preset value. Optionally, the width of each of the first wing plate 21 and the second wing plate 22 is less than or equal to 6 cm, i.e., the first preset value is 6 cm. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce the weight of the stiffening plate 100.

[0029] Alternatively, the width of each of the first flange 21 and the second flange 22 is less than or equal to 5 centimeters, i.e., the first preset value is 5 centimeters. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce the weight of the stiffening plate 100.

[0030] The height of the web 23 is greater than or equal to a second preset value and less than or equal to a third preset value. Optionally, the height of the web 23 is greater than or equal to 14 cm and less than or equal to 16 cm, that is, the second preset value is 14 cm and the third preset value is 16 cm. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce the weight of the stiffening plate 100.

[0031] Alternatively, the height of the web 23 is greater than or equal to 14.9 cm and less than or equal to 15.1 cm, i.e., the second preset value is 14.9 cm and the third preset value is 15.1 cm. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce the weight of the stiffening plate 100.

[0032] The thickness of the web 23 is less than the width of the first flange 21, that is, the thickness of the web 23 is less than the width of the second flange 22, and the thickness of the web 23 is less than or equal to 3 cm. This can further improve the strength and stiffness of the stiffened plate 100 and further reduce the weight of the stiffened plate 100.

[0033] Alternatively, the thickness of the web 23 may be less than or equal to 2.2 cm. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce its weight.

[0034] The ratio of the height of the web 23 to the width of the first flange 21 is greater than or equal to a fourth preset value. That is, the ratio of the height of the web 23 to the width of the second flange 22 is greater than or equal to the fourth preset value. Optionally, the ratio of the height of the web 23 to the width of the first flange 21 is greater than or equal to 3:1 and less than or equal to 5:1. In other words, the ratio of the height of the web 23 to the width of the second flange 22 is greater than or equal to 3:1 and less than or equal to 5:1. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce its weight.

[0035] Optionally, the ratio of the width to the thickness of the first wing plate 21 is greater than or equal to a fifth preset value. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce its weight. For example, the ratio of the width to the thickness of the first wing plate 21 is greater than or equal to 2:1.

[0036] Alternatively, the ratio of the width to the thickness of the first flange 21 is greater than or equal to 2.6:1. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce its weight.

[0037] Optionally, the ratio of the width to the thickness of the second flange 22 is greater than or equal to a fifth preset value. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce its weight. For example, the ratio of the width to the thickness of the second flange 22 is greater than or equal to 2:1.

[0038] Alternatively, the width-to-thickness ratio of the second flange 22 is greater than or equal to 2.6:1. This can further improve the strength and stiffness of the stiffening plate 100 and further reduce its weight. The thickness of the first flange 21 is equal to the thickness of the second flange 22.

[0039] The cooling water system enclosure of the present invention includes an outer shell and a plate heat exchanger. The outer shell includes a stiffening plate 100, and the plate heat exchanger is disposed inside the outer shell. Accordingly, the cooling water system enclosure according to the embodiments of the present invention has advantages such as high strength, high rigidity, and light weight.

[0040] Compared with existing cooling water systems, the cooling water system of the present invention has a reduced area of ​​about 41% and a weight of about 50%.

[0041] Optionally, the outer shell is generally rectangular and includes an upper plate, a lower plate, a left plate, a right plate, a front plate, and a rear plate, each of which is a stiffening plate 100. The outer shell defines an accommodating space within which the plate heat exchanger is located. The wall of the accommodating space can be the inner side surface 12 of the plate 1.

[0042] The outer shell is 18-22 meters long and 13-17 meters wide. Optionally, the outer shell is 20 meters long and 15 meters wide.

[0043] The offshore wind power converter platform of the present invention includes the aforementioned cooling water system compartment. Accordingly, the offshore wind power converter platform according to embodiments of the present invention has advantages such as robust structure and light weight.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A stiffening plate for a cooling water system, characterized in that, include: A plate having an outer side surface and an inner side surface opposite each other in its thickness direction; The stiffening rib includes a first wing plate, a second wing plate, and a web plate. The first wing plate is disposed on the inner side surface. One end of the web plate is connected to the first wing plate, and the other end of the web plate is connected to the second wing plate. The width of the first wing plate is equal to the width of the second wing plate. The width of each of the first wing plate and the second wing plate is less than or equal to a first preset value. The height of the web plate is greater than or equal to a second preset value and less than or equal to a third preset value. The ratio of the height of the web plate to the width of the first wing plate is greater than or equal to a fourth preset value.

2. The stiffening plate between cooling water systems according to claim 1, characterized in that, The thickness of the plate is greater than or equal to 9 cm and less than or equal to 10 cm.

3. The stiffening plate between cooling water systems according to claim 1, characterized in that, The width of each of the first wing and the second wing is less than or equal to 6 centimeters.

4. The stiffening plate between cooling water systems according to claim 1, characterized in that, The height of the web plate is greater than or equal to 14 cm and less than or equal to 16 cm.

5. The stiffening plate between cooling water systems according to claim 1, characterized in that, The thickness of the web is less than the width of the first wing, and the thickness of the web is less than or equal to 3 centimeters.

6. The stiffening plate between cooling water systems according to claim 1, characterized in that, The thickness direction of the first wing plate is consistent with the thickness direction of the second wing plate, the height direction of the web plate is consistent with the thickness direction of the first wing plate, and the stiffening rib is I-shaped.

7. The stiffening plate between cooling water systems according to claim 1, characterized in that, The ratio of the height of the web to the width of the first wing is greater than or equal to 3:1 and less than or equal to 5:

1.

8. A cooling water system room, characterized in that, include: An outer casing, the outer casing including a stiffening plate, the stiffening plate being a stiffening plate between cooling water systems according to any one of claims 1-7; and A plate heat exchanger, wherein the plate heat exchanger is disposed within the outer casing.

9. The cooling water system according to claim 8, characterized in that, The length of the outer shell is 18-22 meters, and the width of the outer shell is 13-17 meters.

10. An offshore wind power converter platform, characterized in that, Includes the cooling water system as described in claim 8 or 9.

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