Accident oil pit for boosting block of offshore wind plant

Abstract

The utility model discloses an accident oil pit for a boosting block of an offshore wind power plant, which belongs to the technical field of offshore wind power and comprises a plurality of I-shaped beams below oil-carrying equipment, each I-shaped beam consists of a vertical beam web, an upper beam flange positioned at the top of the beam web and a lower beam flange positioned at the bottom of the beam web, the upper-layer steel grating and the lower-layer first bed board are arranged below the oil-carrying equipment, the steel grating and the first bed board are respectively fixed with the I-shaped beams to form a hollow structure serving as an accident oil pit, the accident oil pit is divided into a plurality of beam grids by the I-shaped beams, and each beam grid is provided with flow holes to enable the beam grids to be communicated with each other. According to the utility model, an accident oil pit structure below 0 m elevation is adopted, an original I-beam structure is fully utilized, and the accident oil pit is hidden, is flat and beautiful under normal maintenance working conditions, and is high in operation and maintenance comfort; oil leakage is smooth by adopting the steel grating; the beam grids in the accident oil pit are provided with flow holes to enable the beam grids to be communicated, and oil / water discharge is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to offshore wind power technical field, concretely relates to an accident oil pit for offshore wind farm booster block. BACKGROUND

[0002] The offshore booster station is the "heart" of the offshore wind farm, with the full-field core booster function, and the reliable operation of the key equipment such as the main transformer and the high resistance equipment in the whole life cycle is the top priority. Similar to the oil equipment in the offshore oil and gas engineering, the oil baffle device needs to be set around the main transformer and other oil-containing equipment to avoid the leakage of the equipment body and the overflow to other positions in the room in the accident state. The setting of the oil baffle device is on the one hand to consider that the accident oil is difficult to clean, especially if it spreads to the power distribution cabinet, control box and the like in the room, which is low in appearance and has a fire risk after being stained with oil; on the other hand, the oil baffle device is used for the collection and temporary storage of the accident oil to facilitate the subsequent recycling and reuse.

[0003] Under the prior art, the oil baffle device adopts the way of the oil baffle plate, which has the characteristics of simple manufacturing and material saving. However, the accident oil collection under this way is based on the original deck structure, and when the oil leaks, the accident oil will overflow the base and even the basic equipment, causing great trouble for subsequent cleaning; in addition, the oil baffle plate of this way occupies the passageway in the room, which interferes with the daily maintenance, operation and maintenance, and has low comfort. UTILITY MODEL CONTENTS

[0004] In view of the low appearance, operation and maintenance comfort and maintenance convenience of the accident oil pit in the offshore booster block represented by the main transformer room and the radiator and the like, the utility model provides an accident oil pit located below 0m elevation, which fully utilizes the original beam web structure to form a convenient oil / water drainage scheme.

[0005] The utility model is implemented through the following technical solutions.

[0006] An accident oil pit for an offshore wind farm booster block, comprising a plurality of I-beams below the oil-containing equipment, the I-beams being composed of a vertical beam web, an upper beam flange located at the top of the beam web and a lower beam flange located at the bottom of the beam web, further comprising a steel grating and a first deck plate arranged below the oil-containing equipment, the upper steel grating and the lower first deck plate being respectively fixed with the hollow structure formed by the I-beams as the accident oil pit, and the beam web separating the accident oil pit into a plurality of beam cells, each beam cell being provided with a flow hole to allow the beam cells to communicate with each other.

[0007] Further, the first deck plate is 6mm thick and is set to sink 300mm.

[0008] Further, the flow hole comprises a semicircular hole, a semicircular tube and a flat steel, the semicircular hole is opened on the web plate, and the semicircular tube and the flat steel pass through the semicircular hole.

[0009] Further, the other room is provided with a second floor slab, the steel grating is connected with the second floor slab in the following manner: the second floor slab is arranged on the upper flange of the beam, the steel grating is arranged at a distance from the upper flange of the beam, the top layer of the steel grating is flush with the top layer of the second floor slab, the steel grating and the second floor slab are connected through a first connecting device, and the first connecting device comprises a steel plate platform, the steel plate platform is in an L-shaped structure and is welded with the web plate of the beam, and the steel grating is fixed on the steel plate platform.

[0010] Further, a support assembly is arranged in the steel plate platform, the support assembly adopts unequal angle steels, and the unequal angle steels are additionally arranged in the steel plate platform at intervals of 0.5 m.

[0011] Further, the other room is provided with a second floor slab, the steel grating is connected with the second floor slab in the following manner: the second floor slab and the steel grating are arranged on the upper flange of the beam, the bottom layer of the steel grating is flush with the bottom layer of the second floor slab, the steel grating and the second floor slab are connected through a second connecting device, the second connecting device comprises unequal angle steels and a steel plate, the unequal angle steels are arranged above the edges of the second floor slab, a slope formed by the unequal angle steels is connected with the top layer of the steel grating, and the gap between the unequal angle steels and the second floor slab is sealed by welding the steel plate.

[0012] Further, when the steel grating is arranged on the upper flange of the beam, the upper flange of the beam and the steel grating are connected through a fixing device, the fixing device comprises a saddle clamp, a check bolt and a check nut, the saddle clamp is used to fix the steel grating, the check bolt passes through the saddle clamp and is screwed into the upper flange of the beam, and the check nut is used for fastening.

[0013] Further, the distance between the fixing devices is not greater than 800 mm, each edge of the steel grating is provided with at least one fixing device, each upper flange of the beam under the steel grating is provided with the fixing device, the number of the fixing devices on each upper flange of the beam is not less than 2, and each steel grating is provided with at least 4 fixing devices.

[0014] Further, when the steel grating is arranged on the upper flange of the beam, two steel gratings are arranged in the middle above the upper flange of the beam, and the distance between the two steel gratings is 15-25 mm.

[0015] Further, if the steel grating is provided with an equipment foundation plate and the equipment foundation plate is placed on the upper beam flange to cause the steel grating to rest on the upper beam flange with a length less than 50 mm, a supporting steel plate is arranged below the steel grating, the supporting steel plate is connected with the steel grating through a fixing device, the supporting steel plate is an unequal angle steel, and the fixing device is arranged on each supporting steel plate below the steel grating, and the number of the fixing devices on each supporting steel plate is not less than two.

[0016] The utility model discloses the beneficial effects are:

[0017] 1, the utility model discloses the structure of the accident oil pit below 0m elevation, makes full use of the original I -beam structure, and the accident oil pit is hidden, and the flatness is beautiful under normal maintenance condition, the steel grating is adopted on one hand oil leakage is smooth, and the other hand has convenient replaceability, and the aesthetic degree of room after oil leakage can be guaranteed.

[0018] 2, the utility model discloses two second floor -steel grating connection mode, considers the flatness of the maintenance passageway, greatly improves the comfort of personnel and tool car during operation and maintenance, and the structure type is simple, and can be adapted and selected according to different scenes.

[0019] 3, the utility model discloses the inside beam grid of accident oil pit and set flow hole, reduces the setting requirement of the oil drain floor drain of over -dense, and can effectively handle the water spray of fire fighting or outdoor rainwater (radiator position) accumulation problem, and is connected with the first layer accident oil tank connection pipeline smoothly, and oil / drainage is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the plane arrangement drawing of the utility model accident oil pit;

[0021] Figure 2 It is the section view of the utility model accident oil pit;

[0022] Figure 3 It is the section view of the utility model flow hole;

[0023] Figure 4 It is the section view of the utility model steel grating and second floor connection scheme one;

[0024] Figure 5 It is the second floor -steel grating transition detail drawing of the utility model;

[0025] Figure 6 It is the section view of the utility model steel grating and second floor connection scheme two;

[0026] Figure 7 It is the second floor -steel grating transition detail drawing of the utility model;

[0027] Figure 8 is sectional view of steel grating fixing device of the utility model;

[0028] Figure 9 is steel grating and upper beam flange fixing detail view of the utility model;

[0029] Figure 10 is steel grattice and support steel plate fixing detail view of the utility model.

[0030] In the figure: accident oil pit 1, I-beam 2, beam web plate 21, upper beam flange 22, lower beam flange 23, flow hole 3, beam lattice 4, steel grating 5, first deck 6, second deck 7, oil equipment 8, first connecting device 9, steel plate platform 9-1, support assembly 9-2, second connecting device 10, unequal angle steel 10-1, steel plate 10-2, fixing device 11, saddle clamp 11-1, lock bolt 11-2, lock nut 11-3, support steel plate 12, equipment foundation plate 13. DETAILED DESCRIPTION

[0031] The structure or the technical terms used in the utility model will be further described below. These descriptions are only used to illustrate the way how the utility model is implemented, and cannot constitute any limitation on the utility model.

[0032] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "transverse", "longitudinal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, can also be detachable connection, or integral; can be direct connection, or indirect connection through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] As Figures 1-10As shown, the embodiment introduces an accident oil pit for offshore wind farm booster module, which includes multiple I-beams 2 under oil equipment, the I-beams 2 are composed of vertical web 21, upper flange 22 on the top of the web 21 and lower flange 23 on the bottom of the web 21, and further includes upper steel grating 5 and lower first floor 6 arranged under oil equipment 8 such as main transformer room and radiator, the hollow structure formed by welding the steel grating 5 and 6mm-thick first floor 6 with the I-beams 2 serves as the accident oil pit 1, the I-beams 2 divide the accident oil pit 1 into several beam grids 4, and each beam grid 4 is provided with flow holes 3 to make the beam grids 4 communicate with each other. The accident oil pit 1 is arranged under the oil equipment 8 such as main transformer room and radiator, which is convenient for collecting and temporarily storing accident oil / water, and the position of the accident oil pit 1 is concealed, which is flat and beautiful under normal maintenance conditions.

[0035] As shown in Figure 2 , 3 , the flow hole 3 has a semicircular hole on the web 21, a semicircular tube 3-1 and a flat steel 3-2 pass through the semicircular hole and are welded with the surrounding components. The flow hole 3 communicates with each beam grid 4 separated by the web 21, which reduces the need for dense oil drain floor drains and can effectively handle fire water spray or outdoor rainwater (radiator position) accumulation problems, and the connection pipeline of the first accident oil tank is smooth, and the oil / water drainage is convenient.

[0036] The accident oil pit includes other rooms, and the second floor 7 is laid under the other rooms, and the steel grating 5 is laid under the oil equipment 8 such as main transformer room and radiator. Due to the different thicknesses of the steel grating 5 and the 6mm-thick second floor 7, two connection methods of the steel grating 5 and the second floor 7 are proposed for different scene adaptation selection considering the flatness of the maintenance passage.

[0037] As shown in Figure 4 , the connection method of the steel grating 5 and the second floor 7 is that the second floor 7 laid under the other rooms is placed on the upper flange 22 and the steel grating 5 is at a certain distance from the upper flange 22, the top layer of the steel grating 5 and the second floor 7 is flush, the first connecting device 9 is used to connect the steel grating 5 and the second floor 7, and the height of the first connecting device 9 is adjusted to make the top layer of the steel grating 5 and the second floor 7 flush.

[0038] As shown in Figure 5 , the first connecting device 9 is welded into an L-shaped structure platform through a steel plate platform 9-1, and is welded with the web 21 to fix the steel grating 5 on the steel plate platform 9-1 so that the steel grating 5 is arranged on the platform built by the first connecting device 9 to provide support for the steel grating 5. A set of support assemblies 9-2 needs to be arranged in the steel plate platform 9-1, that is, an unequal angle steel (AH36) is added every 0.5m in the steel plate platform 9-1 to ensure the overall strength and stiffness of the connecting device 9 structure.

[0039] AsFigure 6 As shown, the second way of connecting the steel grating 5 and the second floor slab 7 is that the second floor slab 7 and the steel grating 5 under other rooms are arranged on the upper beam flange 22, the bottom of the steel grating 5 and the second floor slab 7 are flush, the steel grating 5 and the second floor slab 7 are connected through the second connecting device 10, and the height difference between the top layers of the two is adjusted through the second connecting device 10, which not only solves the problem of difficult tool car passing caused by the height difference between the two, but also ensures the overall strength and stability.

[0040] As shown in the figure, Figure 7 The second connecting device 10 is arranged above the edge of the second floor slab 7, and the ramp formed by the unequal angle steel 10-1 is connected with the top layer of the steel grating 5, and the gap between the unequal angle steel 10-1 and the second floor slab 7 is sealed by welding the steel plate 10-2. Because the fixed specification of the unequal angle steel 10-1 cannot meet the height difference between the two, the short side of the unequal angle steel 10-1 needs to be cut appropriately, so that the top of the unequal angle steel 10-1 is flush with the top surface of the steel grating 5.

[0041] As shown in the figure, Figure 8 When the steel grating 5 is placed above the upper beam flange 22, in order to ensure the stability of the overall structure, each side of the steel grating 5 must be supported, so the upper beam flange 22 and the steel grating 5 are connected through the fixing device 11. The fixing device 11 is composed of a saddle clamp 11-1, a lock bolt 11-2 and a lock nut 11-3, the saddle clamp 11-1 is respectively fixed on the steel grating 5, the lock bolt 11-2 passes through the saddle clamp 11-1 and is screwed into the upper beam flange 22, and the lock nut 11-3 is tightened. The spacing of the fixing device 11 is not greater than 800mm, and there is at least one fixing device 12 on each side, and the fixing device 11 needs to be arranged on each upper beam flange 22 under the steel grating 5 (not less than 2 fixing devices 11 on each beam flange 2), and each steel grating 5 has at least 4 fixing devices 11.

[0042] As shown in the figure, Figure 9 If there is no special situation, two steel gratings 5 are placed in the middle of the upper beam flange 22, and the distance between the two steel gratings 5 is about 20mm.

[0043] As shown in the figure, Figure 10 If the equipment foundation plate 13 and other situations occur, resulting in the length of the steel grating 5 placed on the upper beam flange 22 being less than 50mm, additional support steel plates 12 need to be arranged under the steel grating 5, which are respectively fixed with the steel grating 5 and the upper beam flange 22, and the fixing device 11 is connected between the support steel plate 12 and the steel grating 5. The support steel plate 12 is made of unequal angle steel, which is welded at the connection between the upper beam flange 22 and the steel grating 5, the weld surface is ground flat, and enough support force is provided. The fixing device 11 needs to be arranged on each support steel plate 12 under the steel grating 5, and not less than 2 fixing devices 11 are arranged on each support steel plate 12.

[0044] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will still be able to make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An emergency oil sump for a booster module in an offshore wind farm, comprising multiple I-beams below the oil-bearing equipment, wherein each I-beam consists of a vertical beam web, an upper beam flange at the top of the beam web, and a lower beam flange at the bottom of the beam web, characterized in that: It also includes an upper steel grating and a lower first paving plate set below the oil-bearing equipment. The steel grating and the first paving plate are fixed to the I-beam to form a hollow structure that serves as an accident oil pit. The web of the beam divides the accident oil pit into several beam grids, and each beam grid is provided with flow holes to allow the beam grids to communicate with each other.

2. The emergency oil sump for offshore wind farm booster modules according to claim 1, characterized in that: The first paving slab is 6mm thick and is set 300mm below the surface.

3. The emergency oil sump for offshore wind farm booster modules according to claim 1, characterized in that: The flow hole includes a semi-circular hole, a semi-circular tube, and a flat steel bar. A semi-circular hole is opened on the web of the beam, and the semi-circular tube and the flat steel bar pass through the semi-circular hole.

4. An emergency oil sump for a booster module in an offshore wind farm according to claim 1, characterized in that: The accident oil pit includes other rooms. When the second slab is laid under the other rooms, the steel grating is connected to the second slab in such a way that the second slab is placed on the upper beam flange and the steel grating is a certain distance away from the upper beam flange. The steel grating is flush with the top layer of the second slab. The steel grating and the second slab are connected by a first connecting device. The first connecting device includes a steel plate platform. The steel plate platform has an L-shaped structure and is welded to the beam web. The steel grating is fixed on the steel plate platform.

5. An emergency oil sump for a booster module in an offshore wind farm according to claim 4, characterized in that: A support assembly is installed inside the steel plate platform. The support assembly is made of unequal angle steel, and unequal angle steel is added inside the steel plate platform every 0.5m.

6. An emergency oil sump for a booster module in an offshore wind farm according to claim 4, characterized in that: When the second floor slab is laid in the other rooms, the steel grating is connected to the second floor slab in such a way that both the second floor slab and the steel grating are set on the upper beam flange. The steel grating is flush with the bottom layer of the second floor slab. The steel grating and the second floor slab are connected by a second connecting device. The second connecting device includes an unequal angle steel and a steel plate. The unequal angle steel is set above the edge of the second floor slab. The gentle slope formed by the unequal angle steel is connected to the top layer of the steel grating. The gap between the unequal angle steel and the second floor slab is sealed by welding the steel plate.

7. An emergency oil sump for a booster module in an offshore wind farm according to claim 6, characterized in that: When the steel grating is placed on the upper beam flange, the upper beam flange and the steel grating are connected by a fixing device. The fixing device consists of a saddle clamp, an anti-loosening bolt, and an anti-loosening nut. The saddle clamp covers and secures the steel grating, the anti-loosening bolt passes through the saddle clamp and is screwed into the upper beam flange, and is tightened with the anti-loosening nut.

8. An emergency oil sump for a booster module in an offshore wind farm according to claim 7, characterized in that: The spacing between the fixing devices is no more than 800mm. There is at least one fixing device on each side of the steel grating. Each upper beam flange under the steel grating is equipped with a fixing device. There are no less than two fixing devices on each upper beam flange. Each piece of steel grating has at least four fixing devices.

9. An emergency oil sump for a booster module in an offshore wind farm according to claim 7, characterized in that: When the steel grating is placed on the upper beam flange, the two steel gratings are placed centered above the upper beam flange, with a spacing of 15~25mm between the two steel gratings.

10. An emergency oil sump for a booster module in an offshore wind farm according to claim 7, characterized in that: If an equipment foundation plate is provided between the steel gratings and the equipment foundation plate is placed on the upper beam flange, resulting in the steel grating resting on the upper beam flange for a length of less than 50mm, a supporting steel plate is provided below the steel grating. The supporting steel plate is connected to the steel grating by a fixing device. The supporting steel plate is made of unequal angle steel and is welded at the connection between the supporting steel plate and the upper beam flange and the steel grating. Each supporting steel plate under the steel grating is provided with a fixing device, and there are no less than two fixing devices on each supporting steel plate.

Images