CN109586182B

CN109586182B - Offshore box type safety transformer substation

Info

Publication number: CN109586182B
Application number: CN201811484016.9A
Authority: CN
Inventors: 张小开; 杨运平; 赵斌; 马四清; 钟小红; 景博文
Original assignee: Shengli Oilfield Hengyuan Electric Co ltd
Current assignee: SHENGLI OILFIELD HENGYUAN ELECTRIC Co.,Ltd.
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2020-06-19
Anticipated expiration: 2038-12-06
Also published as: CN109586182A

Abstract

The invention discloses an offshore box type safety transformer substation, and relates to the technical field of transformer substations. The oil pump cooling box comprises a box body, a transformer, a low-voltage switch cabinet and a high-voltage switch cabinet, wherein a supporting platform is fixed at the bottom of the box body, a cooling oil tank is arranged inside the supporting platform, a heat absorption oil pipe is fixed on the inner wall of the box body, a heat dissipation oil pipe is fixed on the outer surface of the box body, an oil pump is arranged on the upper surface of the supporting platform, an oil inlet of the oil pump is communicated with the cooling oil tank through a pipeline, an oil outlet of the oil pump is communicated with the cooling oil tank outside the. According to the invention, through the matched use of the sealed box body, the heat absorption oil pipe, the heat dissipation oil pipe and the oil pump, the internal part of the box body can be subjected to circulating heat dissipation, so that the internal temperature of the box body is consistent with the external part of the box body, and the damage of internal equipment caused by overhigh internal temperature of the box body is avoided.

Description

Offshore box type safety transformer substation

Technical Field

The invention belongs to the technical field of transformer substations, and particularly relates to an offshore box type safety transformer substation.

Background

The offshore transformer substation is an important component of a wind power plant and plays an important role in transmitting wind energy. When offshore wind farms have a large capacity and are far offshore (more than 15 km), it is generally necessary to build offshore substations. The offshore transformer substation is an offshore metal platform and is used for gathering wind energy of an offshore wind turbine, boosting the wind energy to a high voltage level of 110kV or 220kV, and transmitting the wind energy to a shore main power grid through a submarine cable.

In order to solve the problem of corrosion of salt mist to equipment, an offshore substation usually adopts a closed design, high-voltage equipment is arranged in a closed space, and a contradiction is formed between a closed operating environment and the ventilation and heat dissipation requirements of the equipment, particularly a main transformer with large heat dissipation capacity. The offshore transformer substation generally adopts a metal closed structure to achieve the anticorrosion effect in the marine environment. However, the structure also enables the main equipment of the offshore transformer substation to have higher heat dissipation requirements, for example, a main transformer has higher heat dissipation requirements, and the ventilation and heat dissipation easily enable corrosive water vapor in the transformer substation to enter, so that the inside of the transformer substation becomes wet, the equipment is corroded, the temperature and the humidity of the internal environment are not easy to maintain constant, and the working environment of the equipment is variable.

Disclosure of Invention

The invention aims to provide an offshore box type safety transformer substation, which solves the problems that the existing transformer substation is poor in heat dissipation condition, internal equipment is easy to corrode, and the working environment of electrical equipment is unstable.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to an offshore box type safety transformer substation, which comprises a box body, a transformer, a low-voltage switch cabinet and a high-voltage switch cabinet, wherein the box body is formed by a stainless steel composite color steel plate, a supporting platform is fixed at the bottom of the box body, a cooling oil tank is arranged inside the supporting platform, a heat absorption oil pipe is fixed on the inner wall of the box body, a heat dissipation oil pipe is fixed on the outer surface of the box body, an oil pump is arranged on the upper surface of the supporting platform, an oil inlet of the oil pump is communicated with the cooling oil tank through a pipeline, an oil outlet of the oil pump is communicated with the heat dissipation oil pipe outside the box body through a pipeline, the other side of the cooling oil tank is communicated with a heat dissipation oil pipe far away from the oil inlet pipe on the surface of the box body through a pipeline, cooling.

The supporting wall of the box body is of a hollow structure formed by two layers of partition plates, latticed resin plates are arranged in the hollow structure between the partition plates, heat-conducting oil pipes penetrate through the grids, and a protective net is arranged on the peripheral side face of the box body.

Further, the bottom of transformer, low-voltage switch cabinet and high tension switchgear all with box inner wall bottom fixed connection, the low-voltage bus-bar clamp of low-voltage switch cabinet passes through copper bar I to be connected with terminal I of transformer, terminal II of transformer passes through copper bar II to be connected with high tension switchgear's wiring end.

Further, a heat dissipation plate is arranged between the bottom of the cooling oil tank and the supporting platform, and heat dissipation fins penetrating through the bottom of the supporting platform are fixed at the bottom of the heat dissipation plate.

Furthermore, both ends of the heat absorption oil pipe and the heat conduction oil pipe are communicated with the heat dissipation oil pipe through U-shaped bent pipes, the heat absorption oil pipes are evenly arranged on the inner walls of the two sides of the box body, and the heat dissipation oil pipes are evenly arranged on the outer surface of the box body.

Furthermore, the oil pump is fixedly connected with a supporting platform through a case, and supporting legs are fixed at the bottom of the supporting platform.

Furthermore, the bottom of the protection net is fixedly connected with the top of the supporting platform, the top of the protection net is fixedly connected with the top of the box body, and the heat dissipation oil pipe is arranged between the protection net and the box body.

Furthermore, the surface of the box body is hinged with a sealing box door through a hinge, and a protection door matched with the sealing box door is arranged on the protection net.

The invention has the following beneficial effects:

1. according to the invention, through the matched use of the sealed box body, the heat absorption oil pipe, the heat dissipation oil pipe and the oil pump, the internal part of the box body can be subjected to circulating heat dissipation, so that the internal temperature of the box body is consistent with the external part of the box body, and the damage of internal equipment caused by overhigh internal temperature of the box body is avoided.

2. The cooling oil tank, the heat dissipation plate and the heat dissipation fins are used, so that the heat dissipation rate of cooling oil is improved, and the heat dissipation and cooling effects are improved.

3. The box body, the oil pump case and the protection net are matched for use, so that the heat dissipation oil pipe and internal equipment are protected, and the heat dissipation oil pipe or the oil pump is prevented from being damaged by collision of external substances.

4. The invention considers the problem of corrosion of salt fog to equipment, and because the offshore transformer substation usually adopts a closed design, high-voltage equipment is arranged in a closed space, and the closed operating environment and the ventilation and heat dissipation requirements of the equipment form contradictions.

5. Meanwhile, the resin plate is adopted in the double-layer structure to replace a conventional metal structure, so that the cost is saved, the manufacturing is convenient, and the grid-shaped resin plate structure is adopted, so that the oil pipe can be penetrated in the honeycomb structure to absorb heat, and the internal heat can be discharged in time.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the internal mechanisms of the offshore box-type safety substation of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure of the supporting platform, the box body and the heat-dissipating oil pipe of the present invention;

FIG. 4 is a rear view of FIG. 3;

in the drawings, the components represented by the respective reference numerals are listed below:

1-box, 2-transformer, 3-low-voltage switch cabinet, 4-high-voltage switch cabinet, 5-supporting platform, 6-cooling oil tank, 7-heat absorption oil pipe, 8-heat dissipation oil pipe, 9-oil pump, 10-heat insulation interlayer, 11-protection net, 12-low-voltage bus clamp, 13-copper bar I, 14-copper bar II, 15-heat dissipation plate and 16-heat dissipation plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the invention relates to an offshore box type safety transformer substation, which comprises a box body 1, a transformer 2, a low-voltage switch cabinet 3 and a high-voltage switch cabinet 4, wherein the box body 1 is made of stainless steel composite color steel plates, a supporting platform 5 is fixed at the bottom of the box body 1, a cooling oil tank 6 is arranged inside the supporting platform 5, a heat absorption oil pipe 7 is fixed on the inner wall of the box body 1, a heat dissipation oil pipe 8 is fixed on the outer surface of the box body 1, the heat dissipation oil pipe 8 is a finned pipe to improve the heat dissipation rate, an oil pump 9 is arranged on the upper surface of the supporting platform 5, an oil inlet of the oil pump 9 is communicated with the cooling oil tank 6 through a pipeline, an oil outlet of the oil pump 9 is communicated with the heat dissipation oil pipe 8 outside the box body 1 through a pipeline, and the supporting platform.

The supporting wall of the box body 1 is a hollow structure, the supporting wall of the box body 1 is a hollow structure formed by two layers of partition boards, a latticed resin plate is arranged in the hollow structure between the partition boards, heat conduction oil pipes penetrate between grids, and the peripheral side face of the box body 1 is provided with a protection net 11.

Wherein, transformer 2, low-voltage switch cabinet 3 and high tension switchgear 4's bottom all with 1 inner wall bottom fixed connection of box, and low-voltage bus clamp 12 of low-voltage switch cabinet 3 passes through copper bar I13 to be connected with transformer 2's terminal I, and transformer 2's terminal II passes through copper bar II14 to be connected with high tension switchgear 4's wiring end.

Wherein, a heat dissipation plate 15 is arranged between the bottom of the cooling oil tank 6 and the supporting platform 5, and a heat dissipation fin 16 penetrating through the bottom of the supporting platform 5 is fixed at the bottom of the heat dissipation plate 15.

Wherein, heat absorption oil pipe 7 and heat conduction oil pipe all communicate with heat dissipation oil pipe 8 through "U" shape return bend, and heat absorption oil pipe 7 evenly arranges on box 1 both sides inner wall, and heat dissipation oil pipe 8 evenly arranges in box 1 surface.

Wherein, oil pump 9 passes through quick-witted case and 5 fixed connection of supporting platform, and supporting platform 5 bottom is fixed with the supporting leg.

Wherein, protection net 11 bottom and 5 tops fixed connection of supporting platform, protection net 11 top and 1 top fixed connection of box, heat dissipation oil pipe 8 sets up between protection net 11 and box 1.

Wherein, box 1 surface articulates through the hinge has sealed chamber door, is provided with the shutter with sealed chamber door matched with on the protection network 11, makes things convenient for the staff to get into 1 insides of box and maintains equipment.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. Marine box safety transformer substation, including box (1), transformer (2), low-voltage switchgear (3) and high tension switchgear (4), the bottom of transformer (2), low-voltage switchgear (3) and high tension switchgear (4) all with box (1) inner wall bottom fixed connection, the low-voltage bus of low-voltage switchgear (3) presss from both sides (12) and is connected with terminal I of transformer (2) through copper bar I (13), terminal II of transformer (2) passes through copper bar II (14) and is connected its characterized in that with the wiring end of high tension switchgear (4): a supporting platform (5) is fixed at the bottom of the box body (1), a cooling oil tank (6) is arranged inside the supporting platform (5), a heat absorption oil pipe (7) and a heat dissipation oil pipe (8) which are connected with the cooling oil tank are arranged on the box body (1), an oil pump (9) is arranged on the upper surface of the supporting platform (5), an oil inlet of the oil pump (9) is communicated with the cooling oil tank (6) through a pipeline, and an oil outlet of the oil pump (9) is communicated with the heat dissipation oil pipe (8) outside the box body (1) through a pipeline; the supporting wall of the box body (1) is of a double-layer structure formed by two layers of partition boards so as to prevent salt mist from entering the box body (1), a hollow structure is arranged between the two layers of partition boards, a latticed resin board is arranged in the hollow structure between the partition boards, heat conducting oil pipes penetrate through the grids of the honeycomb structure so as to timely discharge heat inside the hollow structure, a heat radiating plate (15) is arranged between the bottom of the cooling oil tank (6) and the supporting platform (5), heat radiating fins (16) penetrating through the bottom of the supporting platform (5) are fixed at the bottom of the heat radiating plate (15), the heat absorbing oil pipes (7) and the heat conducting oil pipes are communicated with the heat radiating oil pipes (8) through U-shaped bent pipes, a protecting net (11) is arranged on the peripheral side of the box body (1), the bottom of the protecting net (11) is fixedly connected with the top of the supporting platform (5), the top of the protecting net (11), the heat dissipation oil pipe (8) is arranged between the protection net (11) and the box body (1), and a protection door matched with the sealing box door is arranged on the protection net (11).

2. An offshore box-type safety substation according to claim 1, characterized in that the surface of the box (1) is hinged with a sealed box door by means of hinges.

3. An offshore box-type safety substation according to claim 2, characterized in that the heat absorption oil pipes (7) are evenly arranged on the inner walls of both sides of the box body (1), and the heat dissipation oil pipes (8) are evenly arranged on the outer surface of the box body (1).

4. An offshore box-type safety substation according to claim 3, characterized in that the oil pump (9) is fixedly connected with the supporting platform (5) through a cabinet, and supporting legs are fixed at the bottom of the supporting platform (5).