阅读说明：本技术 海水浸没式冷却系统 (Seawater immersion type cooling system ) 是由 夏波涛 曾茂进 于 2020-03-06 设计创作，主要内容包括：本发明公开了一种海水浸没式冷却系统,旨在提供一种不仅能够保证海上变电站的变压器的冷却效果,而且可以极大的降低泵的制造成本和制造难度,从而极大的降低冷却系统的制造成本的海水浸没式冷却系统。它包括总管道,总管道包括冷却液供给管道与冷却液回流管道；泵,泵设置在冷却液供给管道上；浸没式散热器,浸没式散热器浸没在海水内,以通过海水对流经浸没式散热器内的冷却液进行冷却；所述浸没式散热器通过连接管道组件与总管道相连接,所述浸没式散热器包括冷却液进口与冷却液出口,所述连接管道组件包括连接冷却液进口与冷却液供给管道的供给连接管道及连接冷却液出口与冷却液回流管道的回流连接管道。(The invention discloses a seawater immersed cooling system, and aims to provide a seawater immersed cooling system which can ensure the cooling effect of a transformer of an offshore substation, and can greatly reduce the manufacturing cost and the manufacturing difficulty of a pump, so that the manufacturing cost of the cooling system is greatly reduced. The system comprises a main pipeline, a cooling liquid supply pipeline and a cooling liquid return pipeline, wherein the main pipeline comprises the cooling liquid supply pipeline and the cooling liquid return pipeline; a pump disposed on the coolant supply line; the immersed radiator is immersed in the seawater to cool the cooling liquid flowing through the immersed radiator through the seawater; the immersed radiator is connected with the main pipeline through a connecting pipeline assembly, the immersed radiator comprises a cooling liquid inlet and a cooling liquid outlet, and the connecting pipeline assembly comprises a supply connecting pipeline and a return connecting pipeline, wherein the supply connecting pipeline is connected with the cooling liquid inlet and a cooling liquid supply pipeline, and the return connecting pipeline is connected with the cooling liquid outlet and a cooling liquid return pipeline.)

1. A seawater-immersed cooling system, comprising:

the main pipeline comprises a cooling liquid supply pipeline and a cooling liquid return pipeline;

a pump disposed on the coolant supply line;

the immersed radiator is immersed in the seawater to cool the cooling liquid flowing through the immersed radiator through the seawater;

the immersed radiator is connected with the main pipeline through a connecting pipeline assembly, the immersed radiator comprises a cooling liquid inlet and a cooling liquid outlet, and the connecting pipeline assembly comprises a supply connecting pipeline and a return connecting pipeline, wherein the supply connecting pipeline is connected with the cooling liquid inlet and a cooling liquid supply pipeline, and the return connecting pipeline is connected with the cooling liquid outlet and a cooling liquid return pipeline.

2. The seawater immersion cooling system as claimed in claim 1, further comprising a pipeline leakage detection device, wherein the number of the immersion radiators is at least two, each immersion radiator is connected to the main pipeline through a connection pipeline assembly, each supply connection pipeline is provided with a first switch valve, each supply connection pipeline is provided with a detection port, the detection port is located between the corresponding cooling liquid inlet and the first switch valve, each return connection pipeline is provided with a second switch valve,

the pipeline leakage detection device corresponds to the supply connecting pipeline one by one, and comprises an elastic bag with a closed inner cavity, an elastic bag connecting port arranged on the elastic bag, a vertical cylinder body, a sliding piston arranged in the vertical cylinder body in a sliding manner, a cylinder body inlet arranged at the upper end of the vertical cylinder body, a cylinder body outlet arranged at the lower end of the vertical cylinder body and a detection sensor arranged on the inner bottom surface of the vertical cylinder body, the outlet of the cylinder body is connected with the detection interface of the corresponding supply connecting pipeline through the detection connecting pipeline, the detection connecting pipeline is provided with a third switch valve, the elastic bag connecting port is hermetically connected with the cylinder body inlet, the sealed inner cavity of the elastic bag is filled with air or cooling liquid, the sliding piston abuts against the upper end of the vertical cylinder body, and the inner cavity of the vertical cylinder body and the detection connecting pipeline are filled with the cooling liquid;

when the first switch valve and the second switch valve on the connecting pipeline assembly are opened, the third switch valve of the corresponding pipeline leakage detection device is closed; when the first switch valve and the second switch valve on the connecting pipeline assembly are closed, the third switch valve of the corresponding pipeline leakage detection device is opened.

3. The seawater immersion cooling system as claimed in claim 2, wherein the pipeline leakage detection device further comprises a controller, the first switch valve, the second switch valve and the third switch valve are all solenoid valves, the first switch valve, the second switch valve and the third switch valve are respectively electrically connected with the controller through wires, and each detection sensor is respectively electrically connected with the controller through wires.

4. A seawater immersion cooling system as claimed in claim 2 or claim 3 wherein the first, second and third on-off valves are located above the surface of the sea.

5. A seawater immersion cooling system as claimed in claim 2 or claim 3 wherein the pipeline weep detection means is located above the sea surface.

6. A seawater immersion cooling system as claimed in claim 1, 2 or 3 wherein the immersion radiator comprises a plurality of radiator pipes, the radiator pipes being immersed directly in the seawater.

7. The seawater-submersed cooling system of claim 6, wherein the heat dissipation pipes are distributed in a plurality of layers from top to bottom, and each layer of heat dissipation pipes comprises a plurality of heat dissipation pipes which are arranged side by side and are equidistantly distributed.

8. The seawater immersion cooling system of claim 6 wherein the heat dissipation conduit is a serpentine heat dissipation conduit.

9. A seawater immersion cooling system as claimed in claim 1, 2 or 3 wherein at least one of the coolant supply line and the coolant return line is provided with deionisation apparatus for removing charged ions from the coolant.

10. The seawater immersion cooling system as claimed in claim 1, wherein the number of the immersion radiators is plural, each immersion radiator is connected to the main pipe by a connection pipe assembly, each supply connection pipe is provided with a first switch valve, and each return connection pipe is provided with a second switch valve.

Technical Field

The invention relates to a cooling system, in particular to a seawater immersion type cooling system.

Background

Offshore wind power generation is a novel energy development direction for generating power by utilizing offshore wind resources. Due to the characteristic of high corrosivity of marine environment, the conventional offshore wind power generation offshore substation generally adopts a closed structure, and the offshore wind power generation offshore substation can generate a large amount of heat in the working process, so that the offshore wind power generation offshore substation needs to be cooled by a cooling system. At present, a cooling system of an offshore substation generally adopts seawater as cooling liquid to cool a transformer of the offshore substation in a local material utilization mode, a seawater lifting pump is used for pumping the seawater into the offshore substation through a pipeline to cool the transformer, and then the seawater after heat exchange is discharged back to the sea. At present, the cooling system using seawater as cooling liquid has high requirements on the material of the seawater lift pump due to the high corrosivity of seawater, so that the manufacturing cost and the manufacturing difficulty of the seawater lift pump applied to the cooling system of the existing offshore substation are very high, and the manufacturing cost of the cooling system of the offshore substation is greatly increased.

Disclosure of Invention

The invention aims to provide a seawater immersed cooling system which can ensure the cooling effect of a transformer of an offshore substation, and can greatly reduce the manufacturing cost and the manufacturing difficulty of a pump, thereby greatly reducing the manufacturing cost of the cooling system.

The technical scheme of the invention is as follows:

a seawater-submersed cooling system comprising: the main pipeline comprises a cooling liquid supply pipeline and a cooling liquid return pipeline; a pump disposed on the coolant supply line; the immersed radiator is immersed in the seawater to cool the cooling liquid flowing through the immersed radiator through the seawater; the immersed radiator is connected with the main pipeline through a connecting pipeline assembly, the immersed radiator comprises a cooling liquid inlet and a cooling liquid outlet, and the connecting pipeline assembly comprises a supply connecting pipeline and a return connecting pipeline, wherein the supply connecting pipeline is connected with the cooling liquid inlet and a cooling liquid supply pipeline, and the return connecting pipeline is connected with the cooling liquid outlet and a cooling liquid return pipeline.

In the seawater immersion type cooling system, the pump drives the cooling liquid to perform closed circulation in the main pipeline, the immersion type radiator and a cooling cavity of the transformer of the offshore substation, the immersion type radiator is immersed in seawater, and the cooling liquid flowing through the immersion type radiator is cooled by external seawater, so that the transformer of the offshore substation is cooled, and the cooling effect of the transformer of the offshore substation is ensured; meanwhile, the immersed radiator is immersed in seawater, a heat exchange mode is adopted, heat exchange is carried out between the outside seawater and the cooling liquid flowing through the immersed radiator, cooling of the cooling liquid is achieved, no seawater enters the cooling system, a seawater lifting pump is not needed, a common water pump is adopted, manufacturing cost and manufacturing difficulty of the pump can be greatly reduced, and therefore manufacturing cost of the cooling system is greatly reduced.

Preferably, the device further comprises at least two pipeline leakage detection devices, each of the submerged radiators is connected with the main pipeline through a connecting pipeline assembly, each of the supply connecting pipelines is provided with a first switch valve, each of the supply connecting pipelines is provided with a detection interface, the detection interfaces are located between the corresponding cooling liquid inlet and the corresponding first switch valves, each of the return connecting pipelines is provided with a second switch valve, the pipeline leakage detection devices correspond to the supply connecting pipelines one by one, each pipeline leakage detection device comprises an elastic bag with a sealed inner cavity, an elastic bag connecting port arranged on the elastic bag, a vertical cylinder body, a sliding piston arranged in the vertical cylinder body in a sliding manner, a cylinder body inlet arranged at the upper end of the vertical cylinder body, a cylinder body outlet arranged at the lower end of the vertical cylinder body and a detection sensor arranged on the inner bottom surface of the vertical cylinder body, the outlet of the cylinder body is connected with the detection interface of the corresponding supply connecting pipeline through a detection connecting pipeline, a third switch valve is arranged on the detection connecting pipeline, the elastic bag connecting port is hermetically connected with the inlet of the cylinder body, the closed inner cavity of the elastic bag is filled with air or cooling liquid, the sliding piston is abutted against the upper end of the vertical cylinder body, and the inner cavity of the vertical cylinder body and the detection connecting pipeline are filled with the cooling liquid; when the first switch valve and the second switch valve on the connecting pipeline assembly are opened, the third switch valve of the corresponding pipeline leakage detection device is closed; when the first switch valve and the second switch valve on the connecting pipeline assembly are closed, the third switch valve of the corresponding pipeline leakage detection device is opened.

The immersed radiator is immersed in seawater, so that the seawater is high in corrosivity, and in the long-term use process, the heat dissipation pipeline in the immersed radiator is easily corroded and damaged by the seawater, and the immersed radiator is immersed in the seawater, so that the damage to the heat dissipation pipeline is difficult to find; once the heat dissipation pipeline is corroded and damaged by seawater, seawater enters the pipeline of the cooling system, and the pump is corroded and damaged by the seawater. In order to solve the problem, the cooling system of the scheme is provided with at least two immersed radiators, connecting pipeline assemblies which are in one-to-one correspondence with the immersed radiators, and pipeline leakage detection devices which are in one-to-one correspondence with the supply connecting pipelines; meanwhile, in the operation of the seawater immersion type cooling system, at least one first switch valve and at least one second switch valve in each connecting pipeline assembly are opened, at least one first switch valve and at least one second switch valve in each connecting pipeline assembly are closed, when the first switch valve and the second switch valve on each connecting pipeline assembly are opened, the third switch valve of the corresponding pipeline leakage detection device is closed, and at the moment, the immersion type radiator corresponding to the connecting pipeline assembly is in a working state; when the first switch valve and the second switch valve on the connecting pipeline assembly are closed, the third switch valve of the corresponding pipeline leakage detection device is opened, and at the moment, the immersed radiator corresponding to the connecting pipeline assembly stops working; therefore, at least one immersed radiator can be ensured to be in a working state so as to ensure that the transformer of the offshore substation is cooled; more importantly, the immersed radiator which stops working can be detected through the pipeline liquid leakage detection device under the condition that the cooling effect of the transformer of the offshore substation is not influenced, whether the heat dissipation pipeline in the immersed radiator is corroded and damaged by seawater or not can be found in time, and therefore the problem that the heat dissipation pipeline is damaged by seawater due to the fact that the immersed radiator is immersed in the seawater and the damage of the heat dissipation pipeline is difficult to find is effectively solved, once the heat dissipation pipeline is corroded and damaged by the seawater, the seawater enters the pipeline of the cooling system to cause the pump to be corroded and damaged by the seawater, specifically, when the first switch valve and the second switch valve on the connecting pipeline assembly are closed, and the third switch valve of the pipeline liquid leakage detection device corresponding to the connecting pipeline assembly is opened, the gravity of the sliding piston acts on the cooling liquid in the heat dissipation pipeline in the corresponding immersed radiator through the cooling liquid in the vertical cylinder body, in case whether the heat dissipation pipeline in the immersed radiator is corroded and destroyed by seawater appears, then the coolant in the immersed radiator will be extruded under the action of gravity of the sliding piston, the sliding piston will move down along the vertical cylinder body, meanwhile, the elastic bag contracts, so that the sliding piston can smoothly move down along the vertical cylinder body, when the sliding piston moves to the lower end of the vertical cylinder body, the detection sensor is triggered, an alarm is sent to prompt maintenance personnel, the condition that the heat dissipation pipeline in the immersed radiator is damaged is timely found, thereby effectively solving the problem that the immersed radiator is immersed in seawater, the damage of the heat dissipation pipeline is difficult to be found, once the condition that the heat dissipation pipeline is corroded and destroyed by seawater appears, seawater can be caused to enter the pipeline of a cooling system, and the problem that a pump is corroded and destroyed by seawater is caused.

Preferably, the pipeline leakage detection device further comprises a controller, the first switch valve, the second switch valve and the third switch valve are all electromagnetic valves, the first switch valve, the second switch valve and the third switch valve are respectively and electrically connected with the controller through conducting wires, and each detection sensor is respectively and electrically connected with the controller through conducting wires.

Preferably, the first switch valve, the second switch valve and the third switch valve are located above the sea surface. Therefore, the first switch valve, the second switch valve and the third switch valve are protected from seawater corrosion.

Preferably, the pipeline leakage detection device is located above the sea surface. Therefore, the pipeline leakage detection device is protected from being corroded by seawater.

Preferably, the submerged radiator comprises a plurality of radiating pipes, which are directly submerged in the seawater.

Preferably, the heat dissipation pipes are distributed into a plurality of layers from top to bottom, and each layer of heat dissipation pipe comprises a plurality of heat dissipation pipes which are distributed side by side at equal intervals.

Preferably, the heat dissipation duct is a meandering heat dissipation duct.

Preferably, at least one of the coolant supply line and the coolant return line is provided with a deionization apparatus for removing charged ions from the coolant. In this way, the charged ions in the cooling liquid can be removed by the deionization device, so that the required resistivity range of the cooling liquid can be maintained.

Preferably, the number of the immersed radiators is multiple, each immersed radiator is connected with the main pipeline through a connecting pipeline assembly, each supply connecting pipeline is provided with a first switch valve, and each return connecting pipeline is provided with a second switch valve. Therefore, even if a part of the immersed radiators are in failure, the transformer of the offshore substation can be cooled by other immersed radiators which normally work; meanwhile, the first switch valve and the second switch valve on the corresponding connecting pipeline assembly can be closed, so that the immersed radiator with the fault can be replaced and maintained.

The invention has the beneficial effects that: the cooling effect of the transformer of the offshore transformer substation can be guaranteed, the manufacturing cost and the manufacturing difficulty of the pump can be greatly reduced, and therefore the manufacturing cost of the cooling system is greatly reduced.

Drawings

Fig. 1 is a schematic diagram of a seawater-immersed cooling system according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a seawater-immersed cooling system according to a second embodiment of the present invention.

Fig. 3 is a partial enlarged view of a in fig. 2.

In the figure:

a main conduit 1, a coolant supply conduit 1.1. A coolant return line 1.2;

a pump 2;

an immersion radiator 3, a heat radiation pipe 3.1;

a connecting pipeline assembly 4, a supply connecting pipeline 4.1, a detection interface 4.11 and a backflow connecting pipeline 4.2;

a transformer 5;

a first switching valve 6;

a second switching valve 7;

the device comprises a pipeline leakage detection device 8, an elastic bag 8.1, an elastic bag connecting port 8.2, a vertical cylinder 8.3, a sliding piston 8.4, a cylinder inlet 8.5, a cylinder outlet 8.6, a detection sensor 8.7, a detection connecting pipeline 8.8 and a third switch valve 8.9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.

These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.