CN203910444U - Seawater cooling system for main transformer of offshore transformer substation - Google Patents
Seawater cooling system for main transformer of offshore transformer substation Download PDFInfo
- Publication number
- CN203910444U CN203910444U CN201420307874.7U CN201420307874U CN203910444U CN 203910444 U CN203910444 U CN 203910444U CN 201420307874 U CN201420307874 U CN 201420307874U CN 203910444 U CN203910444 U CN 203910444U
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- water
- oil
- pipe
- transformer
- seawater
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- Withdrawn - After Issue
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Abstract
The utility model discloses a seawater cooling system for a main transformer of an offshore transformer substation. The seawater cooling system for the main transformer of the offshore transformer substation comprises a seawater heat exchanger, an oil water cooler, an oil-submerged pump, oil pipes, a cold water pipe, a circulating water pump and a circulating water tank, wherein the seawater heat exchanger is arranged in seawater, the oil water cooler, the oil-submerged pump, the oil pipe, the cold water pipe, the circulating water pump and the circulating water tank are arranged inside the transformer substation, a water inlet of the seawater heat exchanger is connected with a water outlet of the oil water cooler through a hot water pipe, a water outlet of the seawater heat exchanger is connected with a water inlet of the circulating water tank through a water return pipe, a water outlet of the circulating water tank is connected with a water inlet of the circulating water pump, a water outlet of the circulating water pump is connected with a water inlet of the oil water cooler through the cold water pipe, an oil inlet and an oil outlet of the oil water cooler are connected with an oil tank of the transformer through the oil pipes respectively, and the oil-submerged pump is arranged at the position of the oil inlet of the oil water cooler. According to the seawater cooling system for the main transformer of the offshore transformer substation, the natural wind cooling mode for the main transformer is replaced by the strong oil-water cooling mode for the main transformer, most heat is taken away through circulating water, and the ventilation and heat dissipation requirement of a main transformer room is greatly lowered.
Description
Technical field
The utility model relates to maritime transformer station, oil-filled transformer and salt water cooling system, especially for the cooling oil-filled transformer of strong profit using as main transformer in maritime transformer station, specialized designs a kind of salt water cooling system.
Background technology
Oversea wind power generation is the new direction of global energy development, but the climatic environment of ocean is brought a lot of technical barriers to the construction of maritime transformer station.Marine airborne salt fog and steam have stronger corrosivity to the equipment in transformer station, thereby affect the useful life of equipment, have also affected the insulation property of high-tension apparatus, bring safety problem.
In order to solve the problem of salt fog to equipment corrosion, maritime transformer station usually adopts closed design, high-tension apparatus is arranged in the space of sealing, and the running environment of sealing and the ventilation and heat of equipment require to form the main transformer that contradiction, particularly heat dissipation capacity are larger.
At present, the natural air cooled oil-filled transformer of the general employing of maritime transformer station main transformer, this transformer by land transformer station has extraordinary operational effect, and reliability is high, maintenance is little.But for marine closed operation environment, natural-draft transformer has proposed very large challenge for the ventilating system of transformer chamber, particularly in summer, the weather of high temperature, high humidity, greatly reduces the operational effect of ventilating system.
Utility model content
Based on the problems referred to above, the utility model provides a kind of maritime transformer station main transformer salt water cooling system, can effectively improve the cooling down system of main transformer ventilation and heat.
Comprise following technical scheme: a kind of maritime transformer station main transformer salt water cooling system, comprises and be located at the seawater heat exchanger in seawater and be located at oil-water cooler, oil-immersed pump, oil pipe, cold water pipe, circulating water pump, cyclic water tank and the valve in transformer station;
The water inlet of wherein said seawater heat exchanger is connected by hot-water line with the delivery port of described oil-water cooler, and the delivery port of described seawater heat exchanger is connected by return pipe with the water inlet of described cyclic water tank;
The delivery port of described cyclic water tank is connected with the water inlet of described circulating water pump, and the delivery port of described circulating water pump is connected by cold water pipe with the water inlet of described oil-water cooler;
The oil-in of described oil-water cooler is connected with described oil tank of transformer by oil pipe respectively with oil-out, and wherein the oil-in place of oil-water cooler establishes described oil-immersed pump;
On wherein said oil pipe, cold water pipe, hot-water line and return pipe, be equipped with valve.
Further improvement of the utility model is: wherein said oil-water cooler, oil-immersed pump, oil pipe and valve are connected with oil tank of transformer, forms the closed cycle of [A1]; Can turn-off by the valve on oil pipe, be convenient to maintenance and the replacing of oil-water cooler.
Further improvement of the utility model is: described circulating water pump, cyclic water tank, oil-water cooler are connected with seawater heat exchanger, cold water pipe and valve, forms the closed cycle in water route; Can realize the shutoff of separate unit oil-water cooler waterway circulating by closing the valve on oil-water cooler water inlet pipe and outlet pipe, be convenient to maintenance and the replacing of oil-water cooler.
Further improvement of the utility model is: by closing the water inlet pipe of seawater heat exchanger and the valve on outlet pipe, realize the shutoff of total water route closed cycle, be convenient to the replacing of seawater heat exchanger.
Operation principle of the present utility model is: the oil in oil tank of transformer is subject to transformer core and winding to be heated as deep fat, by oil-immersed pump, the deep fat in oil tank of transformer is constantly inputed in oil-water cooler, deep fat and cold water carry out heat exchange, and the cold oil after cooling comes back to oil tank of transformer; Hot water after heating enters seawater heat exchanger by water pipe, carries out heat exchange with seawater, and the cold water after cooling, under the power providing of circulating water pump, comes back to transformer water tank; Because seawater has mobility, and volume is enough large, and the seawater after heating can be ignored the impact of ocean temperature.
The beneficial effects of the utility model: main transformer adopts the strong profit type of cooling to replace the natural air cooled type of cooling, most of heat is taken away by recirculated water, greatly reduce the ventilation and heat requirement of transformer chamber, can effectively improve the running environment of transformer chamber, the specification of the blower fan that simultaneously reduces to ventilate;
1) with strong profit cooling system, replace air radiator, greatly reduced the volume of main transformer cooling system, arrange more flexible, convenient;
2) utilize the cooling capacity of seawater, adopt softened water circulation, avoided seawater to the corrosion of circulating heat exchange system and fouling.
3) conveniently replaced with the seawater heat exchanger of contact with sea water, to cause between stage of replacement recirculated water loss, can supplement by adding water to water tank, guarantees cooling system operation steady in a long-term.
4) profit cooling system adopts Redundancy Design, and Maintenance and Repair do not affect the normal operation of main transformer, under special ruuning situation, and all right further cooling effect of raising system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
1-oil tank of transformer wherein, 2-oil pipe, 3-oil-immersed pump, 4-oil-water cooler, 5-valve, 6-cold water pipe, 7-circulating water pump, 8-cyclic water tank, 9-hot-water line, 10-seawater heat exchanger, 11-return pipe.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, there is shown: a kind of maritime transformer station main transformer salt water cooling system of the present embodiment, comprises the seawater heat exchanger 10 of being located in seawater and be located at oil-water cooler 4, oil-immersed pump 3, oil pipe 2, cold water pipe 6, circulating water pump 7, cyclic water tank 8 and the valve 5 in transformer station;
The water inlet of wherein said seawater heat exchanger 10 is connected by hot-water line 9 with the delivery port of described oil-water cooler 4, and the delivery port of described seawater heat exchanger 10 is connected by return pipe 11 with the water inlet of described cyclic water tank 8;
The delivery port of described cyclic water tank 8 is connected with the water inlet of described circulating water pump 7, and the delivery port of described circulating water pump 7 is connected by cold water pipe 6 with the water inlet of described oil-water cooler 4;
The oil-in of described oil-water cooler 4 is connected with described oil tank of transformer 1 by oil pipe 2 respectively with oil-out, and wherein the oil-in place of oil-water cooler 4 establishes described oil-immersed pump 3;
On wherein said oil pipe 2, cold water pipe 6, hot-water line 9 and return pipe 11, be equipped with valve 5.
Wherein said oil-water cooler 4, oil-immersed pump 3, oil pipe 2 and valve 5 are connected with oil tank of transformer 1, form the closed cycle of [A2].
Wherein said circulating water pump 7, cyclic water tank 8, oil-water cooler 4 are connected with seawater heat exchanger 10, cold water pipe 6 and valve 5, form the closed cycle in water route.
Wherein, by closing the water inlet pipe of seawater heat exchanger 10 and the valve on outlet pipe, realize the shutoff of total water route closed cycle, be convenient to the replacing of seawater heat exchanger.
During work, transformer oil is subject to transformer core and winding to be heated as deep fat, oil-immersed pump 3 constantly inputs to the deep fat in oil tank of transformer 1 in oil-water cooler 4 by oil pipe 2, in oil-water cooler 4, deep fat and cold water carry out heat exchange, and the cold oil after cooling comes back to oil tank of transformer 1 by oil pipe 2.In oil-water cooler 4, the hot water carrying out after heat exchange with deep fat enters seawater heat exchanger 10 by hot-water line 9, carries out heat exchange with seawater, and the cold water after heat exchange comes back to cyclic water tank 8 by return pipe 11; Circulating water pump 7 is realized recirculated water self-circulating water tank 8, and through circulating water pump 7,---oil-water cooler 4---seawater heat exchanger 10, gets back to the cyclic process of cyclic water tank 8.
By the valve 5 on operating oil line 2, can turn-off the oil circuit of separate unit oil-water cooler 4, so that separate unit oil-water cooler 4 maintenance or while changing is out of service by this oil-water cooler 4; By the cold water pipe 6 of operation separate unit oil-water cooler 4 and the valve on hot-water line 9, can turn-off the water route of this oil-water cooler 4, so that this oil-water cooler 4 maintenance or while changing are out of service by this oil-water cooler 4; Valve by operation seawater heat exchanger 10 import hot-water lines 9 and outlet return pipe 11, can turn-off the water route of seawater heat exchanger, so that the replacing of seawater heat exchanger.Should under main transformer shut down condition, carry out more changing jobs of seawater heat exchanger, change the recirculated water loss that seawater heat exchanger causes, by inject new recirculated water in cyclic water tank 8, supplement.
The beneficial effect of the present embodiment is: not only can meet the heat radiation requirement of main transformer, can also reduce the ventilation requirement of transformer chamber, simplify ventilating system and arrange, improve the filter efficiency of air intake simultaneously, reduce fan noise and power, there is good environment protecting and economy.
Claims (4)
1. a maritime transformer station main transformer salt water cooling system, is characterized in that: comprise the seawater heat exchanger (10) of being located in seawater and be located at oil-water cooler (4), oil-immersed pump (3), oil pipe (2), cold water pipe (6), circulating water pump (7), cyclic water tank (8) and the valve (5) in transformer station;
The water inlet of wherein said seawater heat exchanger (10) is connected by hot-water line (9) with the delivery port of described oil-water cooler (4), and the delivery port of described seawater heat exchanger (10) is connected by return pipe (11) with the water inlet of described cyclic water tank (8);
The delivery port of described cyclic water tank (8) is connected with the water inlet of described circulating water pump (7), and the delivery port of described circulating water pump (7) is connected by cold water pipe (6) with the water inlet of described oil-water cooler (4);
The oil-in of described oil-water cooler (4) is connected with described oil tank of transformer (1) by oil pipe (2) respectively with oil-out, and wherein the oil-in place of oil-water cooler (4) establishes described oil-immersed pump (3);
On wherein said oil pipe (2), cold water pipe (6), hot-water line (9) and return pipe (11), be equipped with valve (5).
2. a kind of maritime transformer station main transformer salt water cooling system according to claim 1, it is characterized in that: wherein said oil-water cooler (4), oil-immersed pump (3), oil pipe (2) and valve (5) are connected with oil tank of transformer (1), form the closed cycle of [A1].
3. a kind of maritime transformer station main transformer salt water cooling system ring according to claim 1, it is characterized in that: described circulating water pump (7), cyclic water tank (8), oil-water cooler (4) are connected with seawater heat exchanger (10), cold water pipe (6) and valve (5), form the closed cycle in water route.
4. a kind of maritime transformer station main transformer salt water cooling system according to claim 1, it is characterized in that: by closing the water inlet pipe of seawater heat exchanger (10) and the valve on outlet pipe, realize the shutoff of total water route closed cycle, be convenient to the replacing of seawater heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307874.7U CN203910444U (en) | 2014-06-11 | 2014-06-11 | Seawater cooling system for main transformer of offshore transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307874.7U CN203910444U (en) | 2014-06-11 | 2014-06-11 | Seawater cooling system for main transformer of offshore transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910444U true CN203910444U (en) | 2014-10-29 |
Family
ID=51784701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420307874.7U Withdrawn - After Issue CN203910444U (en) | 2014-06-11 | 2014-06-11 | Seawater cooling system for main transformer of offshore transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910444U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996498A (en) * | 2014-06-11 | 2014-08-20 | 中国能建集团装备有限公司南京技术中心 | Seawater cooling system for main transformer of offshore substation |
| CN113035521A (en) * | 2021-03-31 | 2021-06-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Transformer cooling device for offshore booster station |
| CN113690023A (en) * | 2021-09-06 | 2021-11-23 | 浙江尔格科技股份有限公司 | Intelligent temperature regulating system and method for transformer oil |
-
2014
- 2014-06-11 CN CN201420307874.7U patent/CN203910444U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996498A (en) * | 2014-06-11 | 2014-08-20 | 中国能建集团装备有限公司南京技术中心 | Seawater cooling system for main transformer of offshore substation |
| CN113035521A (en) * | 2021-03-31 | 2021-06-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Transformer cooling device for offshore booster station |
| CN113690023A (en) * | 2021-09-06 | 2021-11-23 | 浙江尔格科技股份有限公司 | Intelligent temperature regulating system and method for transformer oil |
| CN113690023B (en) * | 2021-09-06 | 2023-09-01 | 浙江尔格科技股份有限公司 | Intelligent transformer oil temperature regulating system and intelligent transformer oil temperature regulating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |