Power station oil tank and flange assembly thereof

Abstract

The utility model relates to the related technical field of power station oil tank flanges, and discloses a power station oil tank and a flange assembly thereof. The flange assembly comprises a flange supporting plate, the flange supporting plate is of an annular plate-shaped structure, the center area of the flange supporting plate is concaved inwards to form a base plate groove, and an annular connecting part connected with the top plate of the power station oil tank is formed in the edge area of the flange supporting plate; the flange seat plate is of an annular plate-shaped structure, and the flange seat plate is arranged in the seat plate groove and is coaxial with the flange supporting plate; the flange cover is detachably arranged on the flange seat plate; the bolt is used for connecting the flange seat plate and the flange cover. The structure of the flange assembly is optimized, the flange supporting plate is designed to be in the mode that the middle area is concave, and the flange base plate, the flange cover and the like are arranged in the middle concave area, so that the flange assembly can be prevented from protruding or excessively protruding out of the plane where the power station oil tank top plate is located; the trafficability problem caused by the height of an original flange and the problem caused by threaded connection of an aluminum flange are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to power station oil tank flanges, and more specifically, to a power station oil tank and a flange assembly thereof. Background Art

[0002] A power plant R&D project required the design of a removable aluminum fuel tank housed within the generator chassis. To increase the tank's capacity, its height was maximized. However, the flange profile on the tank's top hindered its removal from the chassis. To address this issue, the tank and its flange were typically designed to be removable. During assembly, the flange could be removed to prevent interference.

[0003] However, aluminum flanges have a low material strength, so tapping threads directly on the aluminum plate can easily damage and fail during frequent bolt removal. While the wire thread insert method is currently commonly used, this still requires machining threads on the aluminum plate, adding a wire sleeve between the thread and the bolt as a wear-resistant part to increase thread strength and extend service life. This structure also places high demands on thread machining and assembly precision. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model innovatively provides a power station oil tank and its flange assembly, which can solve the technical problems of high processing and use costs of existing power station oil tanks and inconvenient extraction / installation into the chassis.

[0005] To achieve the above technical objectives:

[0006] In a first aspect, the present invention discloses a flange assembly for a power station oil tank, the flange assembly comprising:

[0007] The flange supporting plate adopts an annular plate structure, wherein the center area of the flange supporting plate is concave to form a seat plate groove, and the edge area of the flange supporting plate is formed with an annular connecting portion connected to the top plate of the power station oil tank;

[0008] The flange seat plate adopts a circular plate structure, the flange seat plate is arranged in the seat plate groove and is coaxial with the flange supporting plate;

[0009] A flange cover is detachably arranged on the flange base plate;

[0010] Bolts are used to connect the flange base plate and the flange cover.

[0011] Optionally, the flange assembly further includes:

[0012] A sealing gasket is provided between the flange cover and the flange seat plate and is used for sealing the connection between the flange cover and the flange seat plate.

[0013] Optionally, an annular groove is provided on one side of the flange seat plate facing the flange cover, and the annular groove is used for installing the gasket.

[0014] Optionally, the flange seat plate is welded to the flange support plate.

[0015] Optionally, a first bolt hole penetrating through its plate body is formed at the edge of the flange seat plate, and a nut installation groove is provided on the peripheral side of the flange seat plate. The nut installation groove is opened and extends along the radial direction of the flange seat plate to the first bolt hole;

[0016] The flange cover is provided with a second bolt hole corresponding to the first bolt hole.

[0017] Optionally, the width of the nut installation groove is greater than the minimum width of the nut and less than the maximum width of the nut.

[0018] Wherein, the minimum width of the nut is the distance between the opposite two side surfaces of the nut, and the maximum width of the nut is the distance between the connection points of the opposite two nut apex angles.

[0019] Optionally, the nut installation groove is opened on one side of the flange seat plate facing the flange support plate.

[0020] Optionally, an arc-shaped concave surface is formed at one end of the nut installation groove corresponding to the first bolt hole.

[0021] Optionally, a first hole is opened on the flange cover, and the first hole is used for installing a liquid level detection component; and / or,

[0022] A second hole is opened on the flange cover, and the second hole is used for installing a temperature detection component.

[0023] In a second aspect, the present utility model also provides a power station oil tank, and the power station oil tank includes any one of the above flange assemblies.

[0024] The beneficial effects of the present utility model are as follows:

[0025] The present utility model provides a flange assembly for a power station oil tank. By optimizing its structure, the flange support plate is designed to be concave in the middle area, and a flange seat plate and a flange cover are arranged in the middle concave area, etc., which can avoid the flange assembly protruding or protruding too high from the plane of the top plate of the power station oil tank, and effectively solve the passing problem caused by the height of the original flange and the problems caused by the threaded connection of the aluminum flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram showing the assembly of the flange assembly and the top plate of the power station oil tank in an embodiment of the present utility model;

[0027] Figure 2 is Figure 1 a cross-sectional view of the flange assembly in [[ID=]] when assembled with the top plate of the power station oil tank;

[0028] Figure 3 A schematic diagram showing the connection state between the flange seat plate and the flange support plate in an embodiment of the present invention;

[0029] Figure 4 is Figure 3 a cross-sectional view of the connection state between the flange seat plate and the flange support plate in [[ID=]];

[0030] Figure 5 A schematic diagram showing the flange seat plate in an embodiment of the present invention.

[0031] In the figure:

[0032] 10. Top plate; 20. Flange assembly; 21. Flange cover; 211. First hole; 212. Second hole; 22. Flange support plate; 221. Annular connection part; 23. Bolt; 24. Flange seat plate; 241. Nut installation groove; 242. First bolt hole; 25. Gasket. Detailed implementation manners

[0033] The hospital gown provided by the present invention will be explained and described in detail below with reference to the accompanying drawings of the specification.

[0034] The present invention provides a flange assembly 20 for a power station oil tank. As Figure 1 shown, the flange assembly 20 includes: a flange support plate 22, a flange seat plate 24, a flange cover 21, and bolts 23 connecting the flange cover 21 and the flange seat plate 24, etc.

[0035] As Figures 1 - 5 shown, the flange support plate 22 has a circular ring plate structure. A seat plate groove is formed in the concave center area of the flange support plate 22, and an annular connection part 221 connected to the top plate 10 of the power station oil tank is formed in the edge area of the flange support plate 22. The flange seat plate 24 also has a circular ring plate structure. The flange seat plate 24 is arranged in the seat plate groove and is coaxial with the flange support plate 22; the flange cover 21 is detachably arranged on the flange seat plate 24.

[0036] To avoid the influence brought by the height of the fuel tank flange, an internal flange structure is adopted in this embodiment. That is, when assembling the flange support plate 22 and the flange seat plate 24 to the power station fuel tank, they can be placed inside the power station fuel tank, so that the flange seat plate 24 does not protrude from the top plate 10 of the power station fuel tank at all, and then the entire flange assembly 20 partially protrudes or does not protrude from the top plate 10 of the power station fuel tank at all. In this way, when the fuel tank needs to be removed, the flange cover 21 movably connected to the flange seat plate 24 and the installation parts on the flange cover 21 are disassembled, and then the power station fuel tank can be pulled out or inserted into the corresponding chassis.

[0037] The design method of the flange assembly 20 perfectly solves the design problems of the power station fuel tank, and the effect is reliable. In addition, the structure of the flange assembly 20 is simple, the cost is low, and the installation is also convenient.

[0038] In some optional ways, considering that a certain sealing performance needs to be maintained between the flange cover 21 and the flange seat plate 24, a sealing member can be added to seal it. Exemplarily, as Figures 1 - 2 shown, the flange assembly 20 further includes: a gasket 25, which is arranged between the flange cover 21 and the flange seat plate 24 and is used to seal the connection between the flange cover 21 and the flange seat plate 24. It should be noted that when selecting a relatively wide gasket 25, through holes can also be opened on the gasket 25, so that the bolts 23 pass through the flange cover 21, the gasket 25 and the flange seat plate 24 in sequence and are fixed.

[0039] Further optionally, in order to facilitate installation and ensure the reliability of the sealing effect, the flange seat plate 24 can be optimized. Exemplarily, a ring groove (not shown in the figure) is provided on the side of the flange seat plate 24 facing the flange cover 21, and the ring groove is used to install the gasket 25.

[0040] To enable the gasket 25 to be well embedded in the ring groove, the gasket 25 can be designed to have a ring-shaped protrusion on one side, and the ring-shaped protrusion is adapted to the ring groove. It should be noted that since the gasket 25 has a certain elasticity, the gasket 25 can also be changed to a sealing ring at this time, and the sealing ring is in interference fit with the ring groove. That is, after the sealing ring is assembled, the part of the sealing ring corresponding to the flange seat plate 24 is partially embedded in the ring groove. This method can also well maintain the sealing effect between the flange seat plate 24 and the flange cover 21.

[0041] In some optional ways, such as Figures 1 - 5As shown, the flange seat plate 24 is welded to the flange support plate 22. Based on the design that the flange support plate 22 is concave in the middle area, and the flange seat plate 24, the flange cover 21, etc. are arranged in this middle concave area. After welding the flange seat plate 24 to the flange support plate 22, and then installing them together at the top plate 10 of the power station oil tank to form a structure built into the power station oil tank, it is possible to avoid the flange assembly 20 protruding or protruding too high above the plane where the top plate 10 of the power station oil tank is located, effectively solving the problem of passability caused by the height of the original flange and the problems caused by the threaded connection of the aluminum flange.

[0042] It should be noted that the flange support plate 22 and the power station oil tank can also be connected by welding. Optionally, the flange seat plate 24, the flange support plate 22, and the flange cover 21 are made of aluminum.

[0043] In some alternative ways, such as Figures 1 - 5 As shown, the edge of the flange seat plate 24 is provided with a first bolt hole 242 penetrating its plate body, and a nut installation groove 241 is provided on the peripheral side of the flange seat plate 24. The nut installation groove 241 is opened and extends along the radial direction of the flange seat plate 24 to the first bolt hole 242; the flange cover 21 is provided with a second bolt hole corresponding to the first bolt hole 242.

[0044] In some alternative ways, to facilitate the assembly of the flange cover 21 and the flange seat plate 24, the structure of the nut installation groove 241 is optimized. Exemplarily, the width of the nut installation groove 241 is greater than the minimum width of the nut, and the width of the nut installation groove 241 is less than the maximum width of the nut. Among them, the minimum width of the nut is the distance between the opposite two side surfaces of the nut, and the maximum width of the nut is the distance between the connection points of the opposite two nut vertices.

[0045] In some alternative ways, to facilitate the opening of the nut installation groove 241, the nut installation groove 241 can be opened on one side of the flange seat plate 24. Exemplarily, as Figure 1 、 Figure 5 shown, the nut installation groove 241 is opened on the surface of the flange seat plate 24 facing the flange support plate 22.

[0046] It should be noted that when the difficulty of processing and manufacturing is not considered, the corresponding nut installation groove 241 can also be opened along the radial direction in the middle of the two plate surfaces of the flange seat plate 24.

[0047] In some alternative ways, in order to avoid excessive stress concentration and ensure the overall strength of the flange seat plate 24, the opening depth and opening shape of the nut installation groove 241 can be optimized. Exemplarily, as Figure 1 、 Figure 5As shown, an arc concave surface is formed at one end of the nut installation groove 241 corresponding to the first bolt hole 242, that is: the flange seat plate 24 adopts a U-shaped groove structure as the nut installation groove 241.

[0048] Since the width of the U-shaped groove exactly matches the width of the nut, the nut will not rotate together with the bolt 23 when tightened. This design method solves the connection problem between the flange assemblies 20 and also well avoids the problem of tapping threads on the aluminum plate.

[0049] In some alternative ways, as Figure 1 shown, a first hole 211 is provided on the flange cover 21, and the first hole 211 is used to install a liquid level detection component; and / or, a second hole 212 is provided on the flange cover 21, and the second hole 212 is used to install a temperature detection component. Based on the provision of the first hole 211 and the second hole 212 on the flange cover 21, it is convenient to monitor data such as the oil level and oil temperature of the power station fuel tank. In addition, this design method has a simple structure, is also convenient for the staff to disassemble and assemble and check data, and is convenient for maintaining the corresponding detection components.

[0050] The present utility model also provides a power station fuel tank, and this power station fuel tank includes: any one of the above flange assemblies 20.

[0051] In this embodiment, the flange assembly 20 of this power station fuel tank mainly includes a flange cover 21 plate, a flange seat plate 24, a support plate, a gasket 25, a bolt 23, etc. Except that the flange cover 21 is connected to the fuel tank flange seat plate 24 by bolts 23, the other components are connected into one body by welding and assembled at the top plate 10 of the power station fuel tank.

[0052] When using this flange assembly 20, first place the nut in the U-shaped groove, place the flange cover 21 and the gasket 25 on the flange seat plate 24, pass the bolt 23 through the flange cover 21, the gasket 25 and the flange seat plate 24 in sequence, and then pass it through the corresponding nut, and tighten the bolt 23 with a wrench. Since the width of the U-shaped groove exactly matches the width of the nut, the nut will not rotate together with the bolt 23 when tightened, and the assembly process is simple and convenient.

[0053] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0054] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "coupling", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0055] In the description of this specification, the descriptions with reference to terms such as "this embodiment", "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any at least one embodiment or example. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and simple improvements made to the substantial content of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flange assembly for a power station fuel tank, characterized in that The flange assembly includes: A flange carrier plate, which adopts an annular plate structure. A seat plate groove is formed by concave in the central area of the flange carrier plate, and an annular connecting portion for connecting with the top plate of the power station fuel tank is formed in the edge area of the flange carrier plate; A flange seat plate, which adopts an annular plate structure. The flange seat plate is arranged in the seat plate groove and is coaxial with the flange carrier plate; A flange cover, which is detachably arranged on the flange seat plate; Bolts, which are used to connect the flange seat plate and the flange cover.

2. The flange assembly of the power station fuel tank according to claim 1, characterized in that, The flange assembly further includes: A gasket, which is arranged between the flange cover and the flange seat plate and is used to seal the connection between the flange cover and the flange seat plate.

3. The flange assembly of the power station fuel tank according to claim 2, characterized in that, An annular groove is arranged on one side of the flange seat plate facing the flange cover, and the annular groove is used to install the gasket.

4. The flange assembly of the power station fuel tank according to claim 1, characterized in that, The flange seat plate is welded to the flange carrier plate.

5. The flange assembly of the power station fuel tank according to any one of claims 1-4, characterized in that A first bolt hole penetrating through its plate body is formed in the edge of the flange seat plate, and a nut installation groove is formed on the circumferential side of the flange seat plate. The nut installation groove is opened and extends along the radial direction of the flange seat plate to the first bolt hole; A second bolt hole corresponding to the first bolt hole is arranged on the flange cover.

6. The flange assembly of the power station fuel tank according to claim 5, characterized in that, The width of the nut installation groove is greater than the minimum width of the nut and less than the maximum width of the nut, wherein, the minimum width of the nut is the distance between the opposite two side surfaces of the nut, and the maximum width of the nut is the distance between the connection points of the opposite two nut apexes.

7. The flange assembly of the power station fuel tank according to claim 5, characterized in that, The nut installation groove is opened on one side of the flange seat plate facing the flange carrier plate.

8. The flange assembly of the power station fuel tank according to claim 5, characterized in that, An arc-shaped concave surface is formed at one end of the nut installation groove corresponding to the first bolt hole.

9. The flange assembly of the power station fuel tank according to claim 1, characterized in that A first hole is opened on the flange cover, and the first hole is used to install a liquid level detection component; and / or, A second hole is opened on the flange cover, and the second hole is used to install a temperature detection component.

10. A power station fuel tank, characterized in that, The power station fuel tank includes: the flange assembly according to any one of claims 1-9.

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