Accident oil collecting system suitable for offshore boosting module

Abstract

The utility model provides an accident oil collecting system suitable for an offshore boosting block, which comprises at least one accident oil pit and at least one accident oil tank, an electric oil-containing device is arranged above the accident oil pit, at least one oil outlet hole is arranged at the bottom of the accident oil pit, and the oil outlet hole is connected with the accident oil tank through an oil discharge pipe. Through the safe, reliable and environment-friendly design, the accident oil collecting system effectively collects and stores oil leaked by the electrical oil-containing equipment during an accident or maintenance, and the marine environment pollution risk is remarkably reduced. According to the system, oil is discharged into the low-elevation accident oil tank through gravity, process connection is simplified, additional equipment is not needed, and engineering investment is reduced; the accident oil pit is ingenious in design, the capacity requirement is met while the original structure is not changed, the safety is enhanced through T-shaped steel welding, and oil flowing and collecting are facilitated through inclined arrangement of oil pit bed boards and arrangement of oil guide holes; the laying of the steel grating ensures the maintenance convenience and personnel safety, and ensures the normal operation of equipment.

Description

Technical Field

[0001] The utility model relates to the field of ocean engineering, in particular to an accident oil collection system suitable for an offshore booster module. Background Art

[0002] The offshore wind farm booster module is the core of an offshore wind power project. Key electrical equipment such as main transformers and high-reactance reactors are generally oil-containing equipment. According to relevant specification requirements, an accident oil pit needs to be provided at the bottom of the oil-containing electrical equipment to receive the oil discharged during accidents or maintenance. The capacity of the accident oil pit is generally not less than 20% of the maximum oil content of the equipment. At the same time, an accident oil tank needs to be provided to guide the oil in the accident oil pit into the accident oil tank for storage. This can not only effectively protect the safety of personnel and equipment, but also prevent the impact of accident oil on the environment.

[0003] At present, the accident oil pits of main transformers and high-reactance reactors in onshore substations are all made of reinforced concrete casting, which are overall large and heavy. The offshore wind farm booster module is generally welded by steel, and the oil pits in the form of onshore reinforced concrete cannot be used. At the same time, if a steel structure is made separately for the accident oil pit, problems such as a large overall project quantity, a long construction period, and an increased investment will occur.

[0004] Therefore, it is urgent to develop an accident oil pit device suitable for collecting oil-containing equipment in offshore booster modules, which can not only effectively solve problems such as difficulty in setting up oil pits and high costs for oil-containing equipment such as main transformers and high-reactance reactors, but also provide a safe, reliable, convenient and environmentally friendly solution for offshore booster modules during maintenance or in accident states. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide an accident oil collection system suitable for an offshore booster module, hoping to effectively solve the problems in the background art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An accident oil collection system suitable for an offshore booster module, characterized in that: it includes at least one accident oil pit and at least one accident oil tank. An electrical oil-containing equipment is arranged above the accident oil pit. At least one oil outlet hole is arranged at the bottom of the accident oil pit, and the oil outlet hole is connected to the accident oil tank through an oil discharge pipe.

[0008] While adopting the above technical scheme, the utility model can also adopt or combine the following technical schemes:

[0009] As a preferred technical solution of the present utility model: The accident oil pit includes a plurality of I-beams and at least one oil pit floor plate. The I-beams are welded to each other to form the side wall of the accident oil pit. The oil pit floor plate is welded to the web of the I-beam, and the oil pit floor plate forms the bottom plate of the accident oil pit.

[0010] As a preferred technical solution of the present utility model: T-shaped steel is welded under the oil pit floor plate, and both ends of the T-shaped steel are respectively welded to the web of the I-beam.

[0011] As a preferred technical solution of the present utility model: Angle steel is welded on the top of the I-beam, and a steel grating is erected on the angle steel.

[0012] As a preferred technical solution of the present utility model: The oil pit floor plate is inclined towards the oil outlet hole.

[0013] As a preferred technical solution of the present utility model: An oil drainage floor drain is provided on the oil outlet hole.

[0014] As a preferred technical solution of the present utility model: Oil guiding holes are provided on the side wall between two adjacent accident oil pits.

[0015] As a preferred technical solution of the present utility model: Edge floor plates are provided on the periphery of the accident oil pit.

[0016] As a preferred technical solution of the present utility model: The edge floor plates are erected on the flange plates of the I-beams of the accident oil pit.

[0017] As a preferred technical solution of the present utility model: The projection of the electrical oil-containing equipment on the plane of the cross-section of the accident oil pit falls within the cross-section of the accident oil pit.

[0018] The present utility model provides an accident oil collection system applicable to an offshore booster module, which has the following beneficial effects: The accident oil collection system effectively collects and stores the oil leaked from electrical oil-containing equipment during accidents or maintenance through its safe, reliable and environmentally friendly design, prevents the accident oil from overflowing, protects the equipment room from being polluted by the accident oil, effectively prevents fires caused by the overflow of the accident oil, and significantly reduces the risk of marine environmental pollution. The system uses gravity to drain the oil into an accident oil tank at a lower elevation, simplifies the process connection and does not require additional equipment, reducing the project investment; the accident oil pit is ingeniously designed, meets the capacity requirements without changing the original structure, and enhances the safety through welding of T-shaped steel. The inclined arrangement of the oil pit floor plate and the setting of the oil guiding holes facilitate the flow and collection of the oil; the laying of the steel grating ensures convenient maintenance and personnel safety, ensuring the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall diagram of the accident oil collection system applicable to the offshore booster module provided by the present utility model;

[0020] Figure 2 It is a sectional view of the accident oil pit;

[0021] Figure 3 It is a top view of the accident oil pit;

[0022] In the figure: 1 - Electrical oil-containing equipment; 2 - Accident oil pit; 3 - Drain pipe; 4 - Accident oil tank; 21 - I-beam; 22 - Oil pit floor plate; 23 - T-shaped steel; 24 - Steel grating; 25 - Angle steel; 26 - Oil drain floor drain; 27 - Oil guiding hole; 28 - Edge floor plate. Specific implementation manner

[0023] The present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0024] As Figures 1-3 shown, an accident oil collection system applicable to an offshore booster module includes at least one accident oil pit 2 and at least one accident oil tank 4. An electrical oil-containing equipment 1 is provided above the accident oil pit 2, and the projection of the electrical oil-containing equipment 1 in the plane of the cross-section of the accident oil pit 2 falls within the cross-section of the accident oil pit 2, so that the accident oil pit 2 can collect all the accident oil. At least one oil outlet hole is provided at the bottom of the accident oil pit 2, and the oil outlet hole is connected to the accident oil tank 4 through a drain pipe 3.

[0025] The accident oil pit 2 includes a plurality of I-beams 21 and at least one oil pit floor plate 22. The I-beams 21 are mainly used to bear the gravity load of the electrical oil-containing equipment 1 to ensure the overall safety of the structure. The I-beams 21 are welded to each other to form the side wall of the accident oil pit 2, and the oil pit floor plate 22 is welded on the web of the I-beams 21. The oil pit floor plate 22 forms the bottom plate of the accident oil pit 2, so that it forms a container as a whole to effectively prevent the leakage of accident oil.

[0026] T-shaped steels 23 are welded under the oil pit floor plate 22, and both ends of the T-shaped steels 23 are welded to the webs of the I-beams 21 to ensure the structural strength of the oil pit floor plate 22.

[0027] Angle steels 25 are welded on the tops of the I-beams 21, and a steel grating 24 is erected on the angle steels 25, which is convenient for the staff to repair the electrical oil-containing equipment 1. At the same time, the steel grating 24 can be easily lifted, which is beneficial to the cleaning and maintenance of the accident oil pit 2 and can further ensure the safety of the structure.

[0028] The oil pit floor plate 22 is inclined in the direction of the oil outlet hole.

[0029] An oil drain floor drain 26 is provided on the oil outlet hole.

[0030] Oil guiding holes 27 are opened on the webs of the I-beams 21 between two adjacent accident oil pits.

[0031] The periphery of the accident oil pit 2 is provided with an edge floor plate 28.

[0032] The edge floor plate 28 is erected on the wing plates of the I-beam 21 of the accident oil pit 2.

[0033] Specifically, the above-mentioned accident oil collection system applicable to the offshore booster module is implemented in the following manner:

[0034] After the accident oil enters the accident oil pit 2, it is stored in the container composed of the I-beam 21 and the oil pit floor plate 22. There are oil guiding holes 27 on the side walls between adjacent accident oil pits 2. The oil pit floor plate 22 is inclined towards the oil outlet hole to facilitate the connection of oil. The drain floor drain 26 is connected to the drain pipe 3. The accident oil flows towards the accident oil tank 4 under the action of gravity, completing the collection of the accident oil and preventing pollution to the ocean.

[0035] The above specific implementation manners are used to explain the present utility model, which are only the preferred embodiments of the present utility model, rather than limiting the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and protection scope of the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. An accident oil collection system suitable for offshore booster modules, characterized by: It comprises at least one accident oil pit (2) and at least one accident oil tank (4), wherein an electrical oil-containing device (1) is provided above the accident oil pit (2), and at least one oil outlet hole is provided at the bottom of the accident oil pit (2), and the oil outlet hole is connected to the accident oil tank (4) via an oil drain pipe (3); The accident oil pit (2) comprises a plurality of I-beams (21) and at least one oil pit floor plate (22); the I-beams (21) are welded to each other to form the side walls of the accident oil pit (2); the oil pit floor plate (22) is welded to the web of the I-beams (21); and the oil pit floor plate (22) forms the bottom plate of the accident oil pit (2).

2. The accident oil collection system applicable to offshore booster modules according to claim 1 is characterized in that: A T-shaped steel (23) is welded under the oil pit floor plate (22), and two ends of the T-shaped steel (23) are respectively welded to the web of the I-beam (21).

3. The accident oil collection system applicable to offshore booster modules according to claim 1 is characterized in that: An angle steel (25) is welded to the top of the I-beam (21), and a steel grille (24) is mounted on the angle steel (25).

4. The accident oil collection system applicable to offshore booster modules according to claim 1 is characterized in that: The oil pit floor plate (22) is arranged to be inclined toward the oil outlet.

5. The accident oil collection system applicable to offshore booster modules according to claim 1 is characterized in that: An oil drain floor drain (26) is provided on the oil outlet hole.

6. The accident oil collection system applicable to offshore booster modules according to claim 1 is characterized in that: An oil guide hole (27) is provided on the side wall between two adjacent accident oil pits.

7. The accident oil collection system applicable to offshore booster modules according to claim 1 is characterized in that: Edge panels (28) are provided around the accident oil pit (2).

8. The accident oil collection system applicable to offshore booster modules according to claim 7 is characterized in that: The edge decking (28) is mounted on the wing plate of the I-beam (21) of the accident oil pit (2).

9. The accident oil collection system applicable to offshore booster modules according to claim 1 is characterized in that: The projection of the electrical oil-containing equipment (1) on the plane where the cross section of the accident oil pit (2) is located falls within the cross section of the accident oil pit (2).

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