CN117153527A - New energy box-type transformer substation and new energy generator set - Google Patents

Abstract

The invention provides a new energy box-type transformer substation and a new energy generator set, wherein the transformer substation comprises: the oil immersed transformer is provided with a cabin body of low-voltage equipment and high-voltage equipment; the first side wall is internally provided with a first cavity, a first opening and a second opening, the top of an oil tank of the oil immersed transformer is provided with a third opening, the bottom of the oil tank is provided with a fourth opening, and the third opening and the fourth opening are communicated with the internal cavity of the oil tank; the substation further comprises: an oil heat-dissipating line coiled in the first chamber; the first pumping device is used for pumping the transformer oil in the inner cavity into the oil heat dissipation pipeline and discharging the transformer oil into the inner cavity from the fourth opening; the cooling pipeline is coiled in the first chamber, and the pipe wall of the cooling pipeline is adhered and fixed with the pipe wall of the oil heat dissipation pipeline; and the second pumping device is used for sucking the liquid heat-conducting medium into the cooling pipeline from one end part of the cooling pipeline and discharging the liquid heat-conducting medium out of the cooling pipeline from the other end part. The invention has small volume and low manufacturing cost.

Description

New energy box-type transformer substation and new energy generator set

Technical Field

The invention relates to the technical field of transformer manufacturing, in particular to a new energy box-type transformer substation and a new energy generator set.

Background

Under the great trend of global low-carbon economy and energy revolution, new energy (wind power and photovoltaic) gradually becomes dominant energy from the current auxiliary energy under the large targets of carbon neutralization and carbon peak. The market demand for new energy generator sets is increasing, and the demand for new energy box-type substations deployed in the new energy generator sets is also increasing.

Referring to fig. 1, the existing new energy box-type transformer substation comprises a cabin, an oil immersed transformer, an oil storage cabinet arranged on the oil immersed transformer, and cooling fins for cooling the oil immersed transformer. The oil storage tank is communicated with an oil tank of the oil immersed transformer through a pipeline, and when the transformer oil expands thermally, oil flows from the oil tank to the oil storage tank; when the transformer oil contracts, the oil flows from the oil storage cabinet to the oil tank. The heat sink typically needs to protrude 1m to 2m from the nacelle, making the existing new energy box substation bulky.

However, the space of the deployment site of the new energy generator set is often relatively narrow, particularly in an offshore deployment environment, and the existing large-volume new energy box-type substation is difficult to meet the arrangement requirement of the deployment site of the new energy generator set. In addition, the oil storage cabinet meets the requirement of safe and stable operation of the transformer, but the oil storage cabinet increases the manufacturing cost of the new energy box-type transformer substation.

Disclosure of Invention

The invention provides a new energy box-type substation and a new energy generator set, which are used for solving the problem that the existing large-size new energy box-type substation is difficult to meet the arrangement requirement of a new energy generator set deployment place. In addition, the oil storage cabinet meets the requirement of safe and stable operation of the transformer, but the arrangement of the oil storage cabinet increases the manufacturing cost of the new energy box-type transformer substation.

In order to solve the technical problems, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a new energy box-type substation, including: the oil immersed transformer is positioned outside the cabin body and is arranged on the first side wall of the cabin body; the oil immersed transformer is respectively and electrically connected with the high-voltage equipment and the low-voltage equipment and is used for converting and transmitting high and low voltages between the low-voltage equipment and the high-voltage equipment;

the first side wall is internally provided with a first cavity, the first side wall is also provided with a first opening and a second opening which are communicated with the first cavity, and the first opening is positioned above the second opening; the top of an oil tank of the oil immersed transformer is provided with a third opening, the bottom of the oil tank is provided with a fourth opening, and the third opening and the fourth opening are communicated with an internal cavity of the oil tank;

the new energy box-type substation further comprises:

an oil heat dissipating line coiled in the first chamber, a first end of the oil heat dissipating line extending out of the first chamber from the first opening and communicating with the internal chamber through the third opening, and a second end of the oil heat dissipating line extending out of the first chamber from the second opening and communicating with the internal chamber through the fourth opening;

the first pumping equipment is arranged at the first end part and is used for pumping the transformer oil in the inner cavity into the oil heat dissipation pipeline and discharging the transformer oil into the inner cavity from the fourth opening;

the cooling pipeline is coiled in the first cavity, the pipe wall of the cooling pipeline is attached and fixed with the pipe wall of the oil heat dissipation pipeline, and two end parts of the cooling pipeline extend out of the first cavity from the second opening;

and the second pumping device is arranged on one end part of the cooling pipeline and is used for sucking the liquid heat conducting medium into the cooling pipeline from one end part of the cooling pipeline and discharging the liquid heat conducting medium out of the cooling pipeline from the other end part.

Alternatively, the process may be carried out in a single-stage,

the first sidewall includes: an outer housing having the first chamber; the first opening and the second opening are both positioned on the outer shell;

and a heat insulation material is filled between the pipe wall of the oil heat dissipation pipeline and the inner cavity wall of the first cavity.

Alternatively, the process may be carried out in a single-stage,

the oil heat dissipation pipeline is made of metal, and the cooling pipeline is made of metal.

Alternatively, the process may be carried out in a single-stage,

the cabin body is internally provided with a low-pressure chamber and a high-pressure chamber which are formed by partition plates;

the low-voltage equipment is arranged in the low-voltage chamber and is used for transmitting and controlling the low-voltage energy;

the high-voltage equipment is arranged in the high-voltage chamber and is used for transmitting and controlling high-voltage electric energy.

Alternatively, the process may be carried out in a single-stage,

the low voltage apparatus includes: the low-voltage cabinet, the low-voltage type frame breaker, the surge protector, the UPS power supply and the auxiliary transformer;

the high voltage apparatus includes: high-voltage current transformer, high-voltage arrester, vacuum circuit breaker, isolator, earthing switch.

Alternatively, the process may be carried out in a single-stage,

the liquid heat conducting medium is sea water and is applied to an offshore new energy generator set;

the liquid inlet end of the second pumping equipment is communicated with seawater, and the liquid outlet end of the second pumping equipment is communicated with the cooling pipeline.

Alternatively, the process may be carried out in a single-stage,

the new energy box-type substation further comprises:

the liquid storage tank is used for storing the liquid heat-conducting medium, the liquid inlet end of the second pumping equipment is communicated with the liquid storage tank, and the liquid outlet end of the second pumping equipment is communicated with the cooling pipeline.

Alternatively, the process may be carried out in a single-stage,

the cabin body is made of metal, and one side of the first side wall, which is opposite to the oil immersed transformer, is also provided with a plurality of groups of radiating fins.

Alternatively, the process may be carried out in a single-stage,

the first pumping device is electrically connected to the second pumping device and forms an electrical interlock.

In a second aspect, an embodiment of the present invention provides a new energy generator set, including: the new energy box-type substation according to any one of the first aspects.

According to the embodiment of the invention, the oil cooling pipeline and the cooling pipeline are coiled in the first chamber in the first side wall, the pipe wall of the cooling pipeline is attached and fixed with the pipe wall of the oil cooling pipeline, a user starts up to work by operating the first pumping equipment and the second pumping equipment, so that the heat exchange between the liquid heat conducting medium in the cooling pipeline and the high-temperature transformer oil in the oil cooling pipeline can be realized, the transformer oil is cooled, a cooling fin is not required, the volume of a new energy box-type substation is reduced, and the new energy box-type substation is ensured to meet the arrangement requirement of a new energy power station deployment place. And moreover, through the first pumping equipment and the oil cooling pipeline, the transformer oil can realize circulation, an oil storage cabinet is not required to be arranged for preventing the transformer oil from expanding and contracting in the oil tank, and the manufacturing cost of the new energy box-type transformer substation is reduced.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic front view of a conventional new energy box-type substation;

fig. 2 is a schematic front view of a new energy box-type substation according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a new energy box-type substation in a top view perspective according to an embodiment of the invention;

fig. 4 is a schematic structural diagram of a new energy box-type substation in a side view perspective according to an embodiment of the invention;

FIG. 5 is a schematic view of a cross section of an oil cooling line and a cooling line in a new energy box-type substation according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an oil heat dissipation pipeline and a cooling pipeline in a new energy box-type substation according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of a portion corresponding to the area A in FIG. 4;

wherein:

100. an oil storage cabinet; 200. a heat sink;

1. a low pressure device; 2. a high-voltage device;

3. a cabin body; 31. a first sidewall; 310. a first chamber; 311. a first opening; 312. a second opening; 32. an outer housing; 33. a low pressure chamber; 34. a high pressure chamber;

4. an oil immersed transformer; 41. an oil tank; 42. a third opening; 43. a fourth opening;

5. an oil heat-dissipating line; 51. a first end; 52. a second end;

6. a first pumping device;

7. a cooling line;

8. a second pumping device;

9. and (5) clamping the clamp.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1, the existing new energy box-type substation includes a cabin 3, an oil-immersed transformer 4, an oil storage cabinet 100 disposed on the oil-immersed transformer 4, and a heat sink 200 for dissipating heat from the oil-immersed transformer 4. The oil storage tank 100 is communicated with the oil tank 41 of the oil immersed transformer 4 through a pipeline, and when the transformer oil expands thermally, oil flows from the oil tank 41 to the oil storage tank 100; when the transformer oil contracts, oil flows from the reservoir 100 to the tank 41. The radiating fins 200 are required to extend out of the cabin 3 by 1-2m, and the existing new energy box-type transformer substation is large in size and difficult to meet the arrangement requirements of the deployment place of the new energy power station; and the arrangement of the oil conservator 100 satisfies the requirement of safe and stable operation of the transformer, but the arrangement of the oil conservator 100 increases the manufacturing cost of the new energy box-type substation.

The embodiment of the invention provides a new energy box-type substation, which is shown in fig. 2 to 4, and comprises: the oil immersed transformer comprises a cabin 3 provided with low-voltage equipment 1 and high-voltage equipment 2, and an oil immersed transformer 4 which is positioned outside the cabin 3 and is arranged on a first side wall 31 of the cabin 3; the oil immersed transformer 4 is electrically connected with the high-voltage equipment 2 and the low-voltage equipment 1 respectively and is used for converting and transmitting high and low voltages between the low-voltage equipment 1 and the high-voltage equipment 2;

the first side wall 31 is provided with a first chamber 310, the first side wall 31 is also provided with a first opening 311 and a second opening 312 which are communicated with the first chamber 310, and the first opening 311 is positioned above the second opening 312; the top of the oil tank 41 of the oil immersed transformer 4 is provided with a third opening 42, the bottom of the oil tank 41 is provided with a fourth opening 43, and the third opening 42 and the fourth opening 43 are communicated with the inner cavity of the oil tank 41;

new forms of energy box-type substation still includes:

an oil heat dissipation line 5 coiled in the first chamber 310, the first end 51 of the oil heat dissipation line 5 extending out of the first chamber 310 from the first opening 311 and being communicated with the inner chamber by the third opening 42, the second end 52 of the oil heat dissipation line 5 extending out of the first chamber 310 from the second opening 312 and being communicated with the inner chamber by the fourth opening 43;

a first pumping device 6 provided at the first end 51 for pumping the transformer oil in the interior chamber into the oil cooling line 5 and discharging the transformer oil from the fourth opening 43 into the interior chamber;

the cooling pipeline 7 is coiled in the first chamber 310, the pipe wall of the cooling pipeline 7 is adhered and fixed with the pipe wall of the oil heat dissipation pipeline 5, and two end parts of the cooling pipeline 7 extend out of the first chamber 310 from the second opening 312;

and a second pumping device 8 provided on one end portion of the cooling line 7 for pumping the liquid heat-conducting medium from one end portion of the cooling line 7 into the cooling line 7 and discharging the liquid heat-conducting medium from the other end portion out of the cooling line 7.

In the embodiment of the present invention, the first end 51 of the oil heat dissipating pipeline 5 extends from the first opening 311 to the outside of the first chamber 310 and is communicated with the internal chamber through the third opening 42, and in practical application, the first end 51 may extend below the oil level of the pressure-variable oil, for example: extending 100mm below the oil level facilitates pumping of transformer oil to the oil cooling line 5 by the first pumping device 6.

In the embodiment of the present invention, the oil heat dissipating line 5 is coiled in the first chamber 310, and the first end 51 extends out of the first chamber 310 from the first opening 311 and is communicated with the inner chamber through the third opening 42 at the top of the oil tank 41. In the working process of the new energy box-type transformer substation, the first pumping equipment 6 and the second pumping equipment 8 are started, the first pumping equipment 6 pumps transformer oil in the inner cavity into the oil heat dissipation pipeline 5, and the second pumping equipment 8 pumps liquid heat conduction medium into the cooling pipeline 7 from one end part of the cooling pipeline 7. Through the joint surface between the pipe wall of the cooling pipeline 7 and the pipe wall of the oil heat dissipation pipeline 5, the liquid heat conduction medium in the cooling pipeline 7 can exchange heat with the high-temperature transformer oil in the oil heat dissipation pipeline 5, namely, the heat of the transformer oil is transferred to the liquid heat conduction medium. As the transfer proceeds, the oil temperature of the transformer oil in the oil heat-dissipating line 5 gradually decreases, and the transformer oil after the oil temperature decrease returns to the inner chamber through the fourth opening 43 at the bottom of the oil tank 41. Synchronously, the temperature of the liquid heat-conducting medium, which absorbs the heat of the transformer oil, gradually rises and is discharged outside the cooling line 7 from the other end portion of the cooling line 7, where the second pumping device 8 is not provided.

In practical applications, referring to fig. 5 and 6, the oil cooling line 5 and the cooling line 7 may be specifically disposed in the first chamber 310 by the clip 9 after coiling. The clip 9 has the advantages of portability and low cost, and is beneficial to reducing the manufacturing cost.

In the embodiment of the invention, the oil cooling pipeline 5 and the cooling pipeline 7 are mutually attached to the first chamber 310 in a coiling mode, so that the area of an attaching surface between the wall of the oil cooling pipeline 5 and the wall of the cooling pipeline 7 is increased, the transfer rate of the heat of the transformer oil to the liquid heat conducting medium is accelerated, and the cooling efficiency of the transformer oil is improved. In some embodiments, referring to fig. 7, the coiling direction of the cooling pipeline 7 is opposite to the coiling direction of the oil heat dissipation pipeline 5, so that the flowing direction of the liquid heat conduction medium in the cooling pipeline 7 is opposite to the flowing direction of the transformer oil in the oil heat dissipation pipeline 5, which is beneficial to further accelerating the transfer rate of heat of the transformer oil to the liquid heat conduction medium, improving the heat dissipation performance of the new energy box-type substation and ensuring the safe and stable operation of the new energy box-type substation.

In the embodiment of the invention, the oil cooling pipeline 5 and the cooling pipeline 7 are coiled in the first chamber 310 in the first side wall 31, the pipe wall of the cooling pipeline 7 is attached and fixed with the pipe wall of the oil cooling pipeline 5, and a user can realize heat exchange between the liquid heat conducting medium in the cooling pipeline 7 and the high-temperature transformer oil in the oil cooling pipeline 5 by operating the first pumping equipment 6 and the second pumping equipment 8 to cool the transformer oil, so that the cooling fin 200 is not needed, the volume of the new energy box-type substation is reduced, and the new energy box-type substation is ensured to meet the arrangement requirement of the deployment place of the new energy power station. Moreover, through the first pumping equipment 6 and the oil cooling pipeline 5, the transformer oil can be circulated, the oil storage cabinet 100 is not required to be arranged for preventing the transformer oil from expanding and contracting in the oil tank, and the manufacturing cost of the new energy box-type transformer substation is reduced.

In some embodiments of the present invention, optionally, referring to fig. 5, the first sidewall 31 includes: an outer housing 32, the outer housing 32 having a first chamber 310; the first opening 311 and the second opening 312 are both located on the outer casing 32;

a thermal insulation material is filled between the pipe wall of the oil heat dissipation pipe 5 and the inner cavity wall of the first chamber 310.

In the embodiment of the invention, the heat insulation material is filled between the pipe wall of the oil heat dissipation pipeline 5 and the inner cavity wall of the first cavity 310, so that the heat of the transformer oil in the oil heat dissipation pipeline 5 can be effectively prevented from being transferred to the outer shell 32, and further, the heat is prevented from being transferred to the cabin 3 and the oil immersed transformer 4, and the safe and stable operation of the low-voltage equipment 1, the high-voltage equipment 2 and the oil immersed transformer 4 in the cabin 3 is ensured. Correspondingly, by filling the heat insulating material between the pipe wall of the oil cooling line 5 and the inner cavity wall of the first chamber 310, it is also possible to prevent the ambient temperature of the new energy box-type substation deployment site from being transferred to the transformer oil in the oil cooling line 5. Particularly, in practical application, the new energy box-type substation is applied to an offshore wind power or photovoltaic generator set, sunlight is not shielded by mountains or buildings like land in the marine environment, sunlight irradiation time in the daytime is long, and environment temperature is high, and heat insulation materials are filled between the pipe wall of the oil heat dissipation pipeline 5 and the inner cavity wall of the first cavity 310, so that the transmission of the offshore environment temperature to transformer oil in the oil heat dissipation pipeline 5 can be effectively prevented, the heat dissipation performance of the new energy box-type substation is further improved, and safe and stable operation of the new energy box-type substation is ensured.

In some embodiments of the invention, the method, optionally,

the oil heat dissipation pipeline 5 is made of metal, and the cooling pipeline 7 is made of metal.

In the embodiment of the invention, the heat conduction efficiency between the pipe wall of the oil heat dissipation pipeline 5 and the pipe wall of the cooling pipeline 7 is improved by adopting the oil heat dissipation pipeline 5 and the cooling pipeline 7 which are made of metal materials, so that the transfer rate of the heat of the transformer oil to the liquid heat conduction medium is further accelerated, the heat dissipation performance of the new energy box-type transformer substation is improved, and the safe and stable operation of the new energy box-type transformer substation is ensured.

It will be appreciated that the heat transfer efficiency of different metals is also different. According to the embodiment of the invention, the conditions that metal needs to be in service for a long time in a high-temperature environment, the manufacturing cost and the processing difficulty are comprehensively considered, and stainless steel or copper can be selected as the materials of the oil cooling pipeline 5 and the cooling pipeline 7.

In some embodiments of the invention, optionally, as shown in figure 3,

the cabin 3 is internally provided with a low-pressure chamber 33 and a high-pressure chamber 34 which are formed by partition plates;

the low-pressure device 1 is arranged in the low-pressure chamber 33, and the low-pressure device 1 is used for transmitting and controlling the low-pressure energy;

the high voltage device 2 is arranged in a high voltage chamber 34, the high voltage device 2 being used for transmission and control of high voltage electrical energy.

In the embodiment of the invention, the low-voltage chamber 33 is adjacent to the high-voltage chamber 34, and the low-voltage equipment 1, the high-voltage equipment 2 and the oil-immersed transformer 4 form a 'delta' structure, so that the volume of the new energy box-type transformer substation is reduced, the marine transportation is facilitated, and convenience is provided for deployment in the offshore power generation platform with narrow space.

In some embodiments of the invention, the method, optionally,

the low-voltage apparatus 1 includes: the low-voltage cabinet, the low-voltage type frame breaker, the surge protector, the UPS power supply and the auxiliary transformer; the auxiliary transformer is used for meeting the power supply requirement of secondary elements in the box-type transformer substation, and the UPS power supply supplies power to the elements in the box-type transformer substation in the power failure state of the box-type transformer substation.

The high-voltage apparatus 2 includes: high-voltage current transformer, high-voltage arrester, vacuum circuit breaker, isolator, earthing switch.

In some embodiments of the invention, the method, optionally,

the liquid heat conducting medium is sea water and is applied to the offshore new energy generator set;

the liquid inlet end of the second pumping device 8 is communicated with seawater, and the liquid outlet end of the second pumping device 8 is communicated with the cooling pipeline 7.

Aiming at the offshore deployment environment, the oil immersed transformer 4 is connected with the first side wall 31 by bolts, and a water baffle is arranged at the joint to prevent rainwater and seawater from entering the cabin body 3 along the joint.

In some embodiments of the invention, the method, optionally,

new forms of energy box-type substation still includes:

a liquid storage tank (not shown in the figure) is used for storing liquid heat conducting medium, the liquid inlet end of the second pumping device 8 is communicated with the liquid storage tank (not shown in the figure), and the liquid outlet end of the second pumping device 8 is communicated with the cooling pipeline 7.

In some embodiments of the invention, the method, optionally,

the cabin 3 is made of metal, and one side of the first side wall 31 opposite to the oil immersed transformer 4 is also provided with a plurality of groups of radiating fins (not shown in the figure).

In the embodiment of the invention, the side of the first side wall 31 opposite to the oil immersed transformer 4 is further provided with a plurality of groups of radiating fins (not shown in the figure), so that the radiating performance of the new energy box-type substation is further improved, and the safe and stable operation of the new energy box-type substation is ensured.

In some embodiments of the invention, the method, optionally,

the first pumping device 6 is electrically connected to the second pumping device 8 and constitutes an electrical interlock.

The embodiment of the invention implements the electrical interlock in particular in a soft interlock, setting the activation condition of the first pumping device 6 such that the second pumping device 8 is already activated, i.e. preventing the first pumping device 6 from being activated before the second pumping device 8 is activated. It will be appreciated that, if only the first pumping device 6 is started, the high-temperature transformer oil cannot be cooled and accumulated in the first chamber 310, the oil-immersed transformer 4 cannot effectively dissipate heat, so that the safe and stable operation of the new energy box-type substation is compromised.

In some embodiments, similarly, the first pumping device 6 is electrically connected to the second pumping device 8 and forms an electrical interlock, and the shutdown process can be optimized, so that the shutdown condition of the second pumping device 8 is set to be that the first pumping device 6 is already shutdown, that is, the second pumping device 8 is prevented from being shutdown before the first pumping device 6 is shutdown, the problem that only the high-temperature transformer oil caused by shutdown of the second pumping device 8 cannot be cooled and heat is accumulated in the first chamber 310 is avoided, and safe and stable operation of the new energy box-type substation is ensured.

The embodiment of the invention also provides a new energy generator set, which comprises: the embodiment of the invention relates to a new energy box-type substation.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (10)

1. A new energy box-type substation, comprising: the oil immersed transformer is positioned outside the cabin body and is arranged on the first side wall of the cabin body; the oil immersed transformer is respectively and electrically connected with the high-voltage equipment and the low-voltage equipment and is used for converting and transmitting high and low voltages between the low-voltage equipment and the high-voltage equipment;

the method is characterized in that:

the first side wall is internally provided with a first cavity, the first side wall is also provided with a first opening and a second opening which are communicated with the first cavity, and the first opening is positioned above the second opening; the top of an oil tank of the oil immersed transformer is provided with a third opening, the bottom of the oil tank is provided with a fourth opening, and the third opening and the fourth opening are communicated with an internal cavity of the oil tank;

the new energy box-type substation further comprises:

an oil heat dissipating line coiled in the first chamber, a first end of the oil heat dissipating line extending out of the first chamber from the first opening and communicating with the internal chamber through the third opening, and a second end of the oil heat dissipating line extending out of the first chamber from the second opening and communicating with the internal chamber through the fourth opening;

the first pumping equipment is arranged at the first end part and is used for pumping the transformer oil in the inner cavity into the oil heat dissipation pipeline and discharging the transformer oil into the inner cavity from the fourth opening;

the cooling pipeline is coiled in the first cavity, the pipe wall of the cooling pipeline is attached and fixed with the pipe wall of the oil heat dissipation pipeline, and two end parts of the cooling pipeline extend out of the first cavity from the second opening;

and the second pumping device is arranged on one end part of the cooling pipeline and is used for sucking the liquid heat conducting medium into the cooling pipeline from one end part of the cooling pipeline and discharging the liquid heat conducting medium out of the cooling pipeline from the other end part.

2. The new energy box-type substation according to claim 1, characterized in that:

the first sidewall includes: an outer housing having the first chamber; the first opening and the second opening are both positioned on the outer shell;

and a heat insulation material is filled between the pipe wall of the oil heat dissipation pipeline and the inner cavity wall of the first cavity.

3. The new energy box-type substation according to claim 1 or 2, characterized in that:

the oil heat dissipation pipeline is made of metal, and the cooling pipeline is made of metal.

4. The new energy box-type substation according to claim 1, characterized in that:

the cabin body is internally provided with a low-pressure chamber and a high-pressure chamber which are formed by partition plates;

the low-voltage equipment is arranged in the low-voltage chamber and is used for transmitting and controlling the low-voltage energy;

the high-voltage equipment is arranged in the high-voltage chamber and is used for transmitting and controlling high-voltage electric energy.

5. The new energy box-type substation according to claim 4, wherein:

the low voltage apparatus includes: the low-voltage cabinet, the low-voltage type frame breaker, the surge protector, the UPS power supply and the auxiliary transformer;

the high voltage apparatus includes: high-voltage current transformer, high-voltage arrester, vacuum circuit breaker, isolator, earthing switch.

6. The new energy box-type substation according to claim 1, characterized in that:

the liquid heat conducting medium is sea water and is applied to an offshore new energy generator set;

the liquid inlet end of the second pumping equipment is communicated with seawater, and the liquid outlet end of the second pumping equipment is communicated with the cooling pipeline.

7. The new energy box-type substation according to claim 1, characterized in that:

the new energy box-type substation further comprises:

the liquid storage tank is used for storing the liquid heat-conducting medium, the liquid inlet end of the second pumping equipment is communicated with the liquid storage tank, and the liquid outlet end of the second pumping equipment is communicated with the cooling pipeline.

8. The new energy box-type substation according to claim 1, characterized in that:

the cabin body is made of metal, and one side of the first side wall, which is opposite to the oil immersed transformer, is also provided with a plurality of groups of radiating fins.

9. The new energy box-type substation according to claim 1, characterized in that:

the first pumping device is electrically connected to the second pumping device and forms an electrical interlock.

10. The utility model provides a new forms of energy generating set which characterized in that includes: the new energy box-type substation according to any one of claims 1 to 9.