Condenser of wind driven generator pump heat dissipation system and working method of condenser

Abstract

The invention discloses a condenser of a wind driven generator pump heat dissipation system and a working method of the condenser. An in-cabin condenser is arranged in a cabin, and an upper collecting pipe and a lower collecting pipe are located in an out-cabin condenser; an inlet of the two-phase pump is communicated with an outlet of the lower collecting pipe through a second refrigerant pipe, an outlet of the two-phase pump is communicated with a refrigerant inlet in the bottom of the in-cabin condenser through a first refrigerant pipe, and a refrigerant outlet in the top of the in-cabin condenser is communicated with the upper collecting pipe through a third refrigerant pipe. An outlet of the lubricating oil pump is communicated with an oil inlet in the top of the in-cabin condenser through a first oil pipe, an oil outlet in the bottom of the in-cabin condenser is communicated with an oil inlet of a component to be cooled through a second oil pipe, and an oil outlet of the component to be cooled is communicated with an inlet of the lubricating oil pump. The condenser and the working method thereof can meet the heat dissipation requirement of the wind turbine generator.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation, and relates to a condenser of a pump-driven heat dissipation system of a wind power generator and a working method thereof. Background Art

[0002] During the operation of wind turbines, high temperature alarms often appear in gearboxes and inverters, which poses certain safety hazards. Due to high temperature alarms, wind turbines have to reduce power, resulting in insufficient power generation, low operating efficiency, and poor economic benefits of wind farms. At the same time, due to the frequent replacement of important electronic and electrical components caused by high temperature, even inverter explosion and combustion, mechanical parts are severely damaged, making operation and maintenance costs high.

[0003] Take Sinovel 1.5MW (model SL1500, or CSR WT1650) wind turbine as an example:

[0004] The HYDAC lubrication and cooling system is used, which is designed for foreign gearboxes and can meet the normal operation of foreign gearboxes. However, the domestic gearboxes used by Sinovel fans generally have low mechanical efficiency due to factors such as machining accuracy. In addition, after long-term operation of the unit, due to factors such as mechanical wear, its mechanical efficiency is further reduced, resulting in severe heat generation during operation.

[0005] The cabin of the early design of Sinovel's 1.5MW wind turbine was unable to exchange sufficient air with the external environment. There were many large heat sources in the cabin, and the heat generated was accumulated inside the cabin, causing the internal ambient temperature of the cabin to reach as high as 45°C, seriously affecting the heat exchange efficiency of the radiator, and also posing a safety hazard.

[0006] The HYDAC radiator's small heat exchange capacity, insufficient cooling air volume and unreasonable heat exchanger structure design all resulted in the HYDAC lubrication cooling system being unable to meet the heat dissipation requirements of wind turbines. Summary of the invention

[0007] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a condenser of a wind turbine pump-driven cooling system and a working method thereof, wherein the condenser and the working method thereof can meet the cooling requirements of the wind turbine.

[0008] To achieve the above object, the present invention discloses a condenser of a wind turbine pump-driven heat dissipation system, comprising a nacelle cover, a nacelle, an upper manifold, a lower manifold, a two-phase pump, a first refrigerant pipe, a second refrigerant pipe, a third refrigerant pipe, a lubricating oil pump, a first oil pipe and a second oil pipe;

[0009] An outboard condenser is arranged on the engine room cover, an inboard condenser is arranged in the engine room, and an upper manifold and a lower manifold are located in the outboard condenser;

[0010] The inlet of the two-phase pump is connected to the outlet of the lower manifold via the second refrigerant pipe, the outlet of the two-phase pump is connected to the refrigerant inlet at the bottom of the cabin condenser via the first refrigerant pipe, and the refrigerant outlet at the top of the cabin condenser is connected to the upper manifold via the third refrigerant pipe; the outlet of the lubricating oil pump is connected to the oil inlet at the top of the cabin condenser via the first oil pipe, the oil outlet at the bottom of the cabin condenser is connected to the oil inlet of the component to be cooled via the second oil pipe, and the oil outlet of the component to be cooled is connected to the inlet of the lubricating oil pump.

[0011] The condenser of the pump-driven heat dissipation system of the wind turbine generator of the present invention is further improved in that:

[0012] Furthermore, an outer wall of the cabin cover is fitted with an outer arc-shaped load-bearing steel plate, and the outer condenser is connected to the outer arc-shaped load-bearing steel plate via an outer support.

[0013] Furthermore, an in-cabin support is provided in the cabin, wherein the lower end of the in-cabin support and the in-cabin condenser are both fixed on the external gearbox planetary housing, and the upper end of the in-cabin support is connected to the bottom of the cabin cover.

[0014] Furthermore, a top connecting device is provided on the top of the outboard condenser.

[0015] Furthermore, diagonal braces and cables are provided on both sides of the outboard condenser, wherein one end of the diagonal brace is connected to a fixed base, the fixed base is fixed on the engine room cover, the other end of the diagonal brace is fixed in an oblique groove on the top connecting device, one end of the cable is fixed on the engine room cover, and the other end of the cable is fixed in the oblique groove on the top connecting device.

[0016] Furthermore, the air duct of the outboard condenser is a corrugated structure.

[0017] Furthermore, it also includes a third oil pipe, one end of which is connected to the oil outlet at the bottom of the condenser in the cabin, and the other end of the third oil pipe is connected to a temperature control valve.

[0018] Furthermore, the arc-shaped load-bearing steel plate outside the cabin is connected to the cabin cover by a plurality of first bolts.

[0019] Furthermore, the diagonal brace is connected to the fixed base via a second bolt;

[0020] Furthermore, the fixing base is fixed to the engine cover by screws.

[0021] The present invention discloses a working method of a condenser of a wind turbine pump-driven heat dissipation system, comprising the following steps:

[0022] Driven by a two-phase pump, the refrigerant in the lower manifold enters the cabin condenser for heat exchange and heat absorption, then enters the upper manifold and is cooled by air cooling, and then enters the lower manifold;

[0023] The lubricating oil enters the cabin condenser through the lubricating oil pump, the first oil pipe and the oil inlet at the top of the cabin condenser for heat exchange cooling, then enters the component to be cooled through the second oil pipe to absorb heat to cool the component to be cooled, and then returns to the lubricating oil pump.

[0024] The present invention has the following beneficial effects:

[0025] The condenser of the wind turbine pump drive heat dissipation system and the working method thereof described in the present invention adopt an external condenser outside the cabin and a built-in condenser inside the cabin during specific operation. The gas-liquid two-phase flow is cooled to a liquid state through the external condenser, and then the two-phase pump is sent to the condenser inside the cabin for heat exchange and heat absorption to become a gas-liquid two-phase flow, and then sent to the external condenser. At the same time, the lubricating oil to be cooled is sent to the condenser inside the cabin for heat exchange and cooling, and then sent to the parts to be cooled for heat absorption, so as to realize the cooling of the parts to be cooled and achieve the purpose of heat dissipation of the gearbox and inverter of the wind turbine. After use, the temperature of the gearbox and the inverter can be greatly reduced, the service life of the equipment can be extended, and the safety production hazards can be eliminated to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 is a side view of the present invention;

[0029] Figure 3 This is the structural diagram of the original radiator's zigzag air duct;

[0030] Figure 4 It is a structural diagram of the corrugated air duct of the outboard condenser 1 in the present invention.

[0031] Among them, 1 is the outboard condenser, 2 is the top connecting device, 3 is the upper manifold, 4 is the lower manifold, 5 is the outboard support, 6 is the first bolt, 7 is the outboard arc-shaped load-bearing steel plate, 8 is the engine cover, 9 is the third refrigerant pipe, 10 is the second refrigerant pipe, 11 is the two-phase pump, 12 is the first refrigerant pipe, 13 is the first oil pipe, 14 is the inboard condenser, 15 is the second oil pipe, 16 is the gearbox planetary housing, 17 is the third oil pipe, 18 is the inboard support, 19 is the cable, 20 is the flange, 21 is the diagonal brace, 22 is the fixed base, 23 is the second bolt, and 24 is the screw. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms “include” and “comprises” indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0034] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0035] It should be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0036] It should be understood that, although the terms first, second, third, etc. may be used to describe preset ranges, etc. in the embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are only used to distinguish preset ranges from each other. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0037] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can usually be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0040] As is known, the pump-driven heat dissipation system of a wind turbine generator is an efficient and innovative heat dissipation solution, which combines the principles of pump drive and coolant circulation for heat dissipation of wind turbines. The pump-driven heat dissipation system of a wind turbine generator is mainly composed of the following parts: Heat dissipation components: These components usually have a heat dissipation inlet and a heat dissipation outlet, and are arranged on the blades of the wind turbine generator or other parts that need heat dissipation. The heat dissipation component can be a heat dissipation pipe or other forms of heat dissipation structure, which is used to transfer heat to the coolant. Liquid supply channel: The liquid supply channel has a liquid supply inlet and a liquid supply outlet, which is responsible for transporting the coolant from the liquid cavity to the heat dissipation component. Liquid return channel: The liquid return channel has a liquid return inlet and a liquid return outlet, which is used to transport the coolant after heat dissipation from the heat dissipation component back to the liquid cavity. Liquid cavity: The liquid cavity is arranged on the heat dissipation component to be cooled of the wind turbine generator, such as a gear box. The liquid cavity is connected to both the liquid supply inlet and the liquid return outlet to form a heat dissipation circulation loop. Circulation pump: The circulation pump is a key component that drives the coolant to flow in the heat dissipation circulation loop. It can be a single circulation pump or two circulation pumps respectively arranged on the liquid supply channel and the liquid return channel.

[0041] Embodiment 1

[0042] refer to Figure 1 and Figure 2 The condenser of the pump-driven heat dissipation system of the wind turbine of the present invention comprises an outboard condenser 1, a top connecting device 2, an upper manifold 3, a lower manifold 4, an outboard support 5, a first bolt 6, an outboard arc-shaped load-bearing steel plate 7, a cabin cover 8, a third refrigerant pipe 9, a second refrigerant pipe 10, a two-phase pump 11, a first refrigerant pipe 12, a first oil pipe 13, an inboard condenser 14, a second oil pipe 15, a gearbox planetary housing 16, a third oil pipe 17, an inboard support 18, a cable 19, a flange 20, a diagonal brace 21, a fixed base 22, a second bolt 23 and a screw 24;

[0043] A number of outboard condensers 1 are fixed below the top connecting device 2, an outboard arc-shaped load-bearing steel plate 7 is fitted to the outer wall of the engine cover 8, and an outboard support 5 is arranged between the outboard condensers 1 and the outboard arc-shaped load-bearing steel plate 7; specifically, the outboard arc-shaped load-bearing steel plate 7 is connected to the engine cover 8 by a number of first bolts 6.

[0044] An in-cabin condenser 14 is provided in the cabin. The lower end of the in-cabin support 18 and the in-cabin condenser 14 are both fixed to the external gearbox planetary housing 16 , and the upper end of the in-cabin support 18 is connected to the bottom of the cabin cover 8 .

[0045] The upper manifold 3 and the lower manifold 4 are located in the outside cabin condenser 1, the inlet of the two-phase pump 11 is connected to one end of the second refrigerant pipe 10, the other end of the second refrigerant pipe 10 is connected to the outlet of the lower manifold 4 after passing through the engine cover 8, the outlet of the two-phase pump 11 is connected to the refrigerant inlet at the bottom of the cabin condenser 14 through the first refrigerant pipe 12, the refrigerant outlet at the top of the cabin condenser 14 is connected to one end of the third refrigerant pipe 9, and the other end of the third refrigerant pipe 9 is connected to the upper manifold 3 after passing through the engine cover 8.

[0046] The outlet of the lubricating oil pump is connected to the oil inlet at the top of the cabin condenser 14 through the first oil pipe 13, the oil outlet at the bottom of the cabin condenser 14 is connected to one end of the second oil pipe 15 and one end of the third oil pipe 17, the other end of the second oil pipe 15 is connected to the oil inlet of the component to be cooled, the oil outlet of the component to be cooled is connected to the inlet of the lubricating oil pump, and the other end of the third oil pipe 17 is connected to the temperature control valve.

[0047] It should be noted that the present invention utilizes the arc-shaped load-bearing steel plate 7 outside the cabin to effectively and evenly distribute the weight of the outside cabin condenser 1. The cabin cover surface only serves as an auxiliary installation surface, and the actual load-bearing is borne by the cabin support 18. The weight of the above outside cabin condenser 1 is borne by the cabin support 18 below the installation position of the outside cabin condenser 1 (inside the cabin), and the cabin support 18 is composed of a bracket beam and a bracket foot.

[0048] In this embodiment, diagonal braces 21 and cables 19 are provided on both sides of the outboard condenser 1 to increase the stability of the outboard condenser 1, wherein one end of the diagonal brace 21 is connected to the fixed base 22 via a second bolt 23, the fixed base 22 is fixed to the engine cover 8 by a screw 24, the other end of the diagonal brace 21 is fixed to the oblique groove on the top connecting device 2, one end of the cable 19 is fixed to the engine cover 8, and the other end of the cable 19 is fixed to the oblique groove on the top connecting device 2, thereby achieving a supporting effect and increasing the stability of the outboard condenser 1.

[0049] In this embodiment, the air duct structure of the outboard condenser 1 is optimized from a sawtooth structure to a corrugated structure, so that dirt can easily pass through the air duct and is not easily contaminated by dirt and dust. In addition, due to the turbulence effect of the fan blades, the outboard condenser 1 with a corrugated air duct has almost no fluff attached. Figure 3 and Figure 4 shown.

[0050] In this embodiment, the connecting parts of the third refrigerant pipe 9 , the second refrigerant pipe 10 and the first refrigerant pipe 12 are connected by a flange 20 .

[0051] In this embodiment, all refrigerant pipes and oil pipes are made of cabin-penetrating hoses, and the cables 19 are made of steel ropes.

[0052] Embodiment 2

[0053] The present embodiment discloses a method for installing and constructing a condenser of a wind turbine pump-driven heat dissipation system. The condenser of the wind turbine pump-driven heat dissipation system comprises an outboard condenser 1, a top connection device 2, an upper manifold 3, a lower manifold 4, an outboard support 5, a first bolt 6, an outboard arc-shaped load-bearing steel plate 7, a cabin cover 8, a third refrigerant pipe 9, a second refrigerant pipe 10, a two-phase pump 11, a first refrigerant pipe 12, a first oil pipe 13, an inboard condenser 14, a second oil pipe 15, a gearbox planetary housing 16, a third oil pipe 17, an inboard support 18, a cable 19, a flange 20, a diagonal brace 21, a fixed base 22, a second bolt 23 and a screw 24. Specifically, the method for installing and constructing a condenser of a wind turbine pump-driven heat dissipation system according to the present invention comprises the following steps:

[0054] 1) Set up an outdoor safety fence to prepare for outdoor installation; dismantle and relocate the original radiator, use the exhaust port of the original radiator as the exit passage of the outdoor condenser 1, and install the outdoor condenser 1, the outdoor support 5 and the outdoor arc-shaped load-bearing steel plate 7;

[0055] 2) Install the cabin support 18 and the cabin condenser 14;

[0056] 3) Connect the oil outlet pipe of the original lubrication pump group of the unit to the oil inlet of the pump drive system, and connect the oil outlet of the pump drive system to the oil port of the gear box. Replace all three oil pipes of the original lubrication pump group with new ones;

[0057] 4) Connect the refrigerant inlet and refrigerant outlet of the pump drive system to the lower manifold 4 and the upper manifold 3 respectively;

[0058] 5) The inlet and outlet of the original radiator are blocked and restored, and it is only used for strong exhaust of the cabin.

[0059] Embodiment 3

[0060] The present embodiment discloses a working method of a condenser of a wind turbine pump-driven heat dissipation system, wherein the condenser of the wind turbine pump-driven heat dissipation system comprises an outboard condenser 1, a top connection device 2, an upper manifold 3, a lower manifold 4, an outboard support 5, a first bolt 6, an outboard arc-shaped load-bearing steel plate 7, a cabin cover 8, a third refrigerant pipe 9, a second refrigerant pipe 10, a two-phase pump 11, a first refrigerant pipe 12, a first oil pipe 13, an inboard condenser 14, a second oil pipe 15, a gearbox planetary housing 16, a third oil pipe 17, an inboard support 18, a cable 19, a flange 20, a diagonal brace 21, a fixed base 22, a second bolt 23 and a screw 24. Specifically, the working method of the condenser of the wind turbine pump-driven heat dissipation system of the present invention comprises the following steps:

[0061] Driven by the two-phase pump 11, the refrigerant in the lower manifold 4 enters the cabin condenser 14 for heat exchange and heat absorption, then enters the upper manifold 3 and is cooled by air cooling, and then enters the lower manifold 4 to realize the circulation of the refrigerant. The lubricating oil to be cooled enters the cabin condenser 14 through the lubricating oil pump, the first oil pipe 13 and the oil inlet at the top of the cabin condenser 14 for heat exchange and cooling, then enters the component to be cooled through the second oil pipe 15 to absorb heat, and then returns to the lubricating oil pump to realize the circulation of the lubricating oil. The component to be cooled can be a gear box and a frequency converter.

[0062] The present invention has the following characteristics:

[0063] After the present invention is applied, the oil temperature of the gearbox of the wind turbine generator set (when fully powered) can be stabilized at about 60°C to 65°C, the temperature of the inverter cold plate (when fully powered) can be reduced by 15 to 20°C from the original level, and the temperature in the cabinet can also be reduced by 5 to 10°C, thereby eliminating safety hazards to the greatest extent.

[0064] After the present invention is applied, the heat dissipation effect of the gear box and the frequency converter can be greatly improved, and the working environment temperature of each component can be greatly reduced, thereby greatly improving the service life of each electrical and electronic component and mechanical component and extending the overall service life of the fan equipment.

[0065] After the present invention is applied, the working environment temperature of each system is greatly reduced, the service life of each component and element is extended, and the operation and maintenance work caused by overheating of the gear box and the inverter is basically reduced to zero.

[0066] After the application of the present invention, the wind turbine generator set is expected to completely eliminate the high temperature alarm phenomenon of the gear box and the inverter, greatly improve the utilization rate of wind resources, improve the power generation efficiency, reduce the operation and maintenance costs, and improve the efficiency of the wind farm.

[0067] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0068] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0069] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A condenser of a wind turbine pump-driven cooling system, characterized in that: It comprises a cabin cover (8), a cabin, an upper manifold (3), a lower manifold (4), a two-phase pump (11), a first refrigerant pipe (12), a second refrigerant pipe (10), a third refrigerant pipe (9), a lubricating oil pump, a first oil pipe (13) and a second oil pipe (15); An outboard condenser (1) is arranged on the cabin cover (8), an inboard condenser (14) is arranged in the cabin, and an upper manifold (3) and a lower manifold (4) are located in the outboard condenser (1); The inlet of the two-phase pump (11) is connected to the outlet of the lower manifold (4) via the second refrigerant pipe (10), the outlet of the two-phase pump (11) is connected to the refrigerant inlet at the bottom of the cabin condenser (14) via the first refrigerant pipe (12), and the refrigerant outlet at the top of the cabin condenser (14) is connected to the upper manifold (3) via the third refrigerant pipe (9); the outlet of the lubricating oil pump is connected to the oil inlet at the top of the cabin condenser (14) via the first oil pipe (13), the oil outlet at the bottom of the cabin condenser (14) is connected to the oil inlet of the component to be cooled via the second oil pipe (15), and the oil outlet of the component to be cooled is connected to the inlet of the lubricating oil pump.

2. The condenser of the wind turbine pump-driven cooling system according to claim 1, characterized in that: An outer wall of the cabin cover (8) is fitted with an outer arc-shaped load-bearing steel plate (7), and the outer condenser (1) is connected to the outer arc-shaped load-bearing steel plate (7) via an outer support (5).

3. The condenser of the wind turbine pump-driven cooling system according to claim 1, characterized in that: An in-cabin support (18) is provided in the cabin, wherein the lower end of the in-cabin support (18) and the in-cabin condenser (14) are both fixed on the external gearbox planetary housing (16), and the upper end of the in-cabin support (18) is connected to the bottom of the cabin cover (8).

4. The condenser of the wind turbine pump-driven cooling system according to claim 1, characterized in that: A top connection device (2) is provided on the top of the outboard condenser (1).

5. The condenser of the wind turbine pump-driven heat dissipation system according to claim 4, characterized in that: An oblique brace (21) and a cable (19) are provided on both sides of the outboard condenser (1), wherein one end of the oblique brace (21) is connected to a fixed base (22), the fixed base (22) is fixed on the engine cover (8), the other end of the oblique brace (21) is fixed in an oblique groove on the top connecting device (2), one end of the cable (19) is fixed on the engine cover (8), and the other end of the cable (19) is fixed in an oblique groove on the top connecting device (2).

6. The condenser of the wind turbine pump-driven cooling system according to claim 1, characterized in that: The air duct of the outboard condenser (1) is a corrugated structure.

7. The condenser of the wind turbine pump-driven cooling system according to claim 1, characterized in that: It also includes a third oil pipe (13), one end of which is connected to the oil outlet at the bottom of the cabin condenser (14), and the other end of the third oil pipe (13) is connected to a temperature control valve.

8. The condenser of the wind turbine pump-driven cooling system according to claim 2, characterized in that: The arc-shaped load-bearing steel plate (7) outside the cabin is connected to the cabin cover (8) via a plurality of first bolts (6).

9. The condenser of the wind turbine pump-driven heat dissipation system according to claim 5, characterized in that: The diagonal brace (21) is connected to the fixed base (22) via a second bolt (23); The fixing base (22) is fixed on the cabin cover (8) by means of screws (24).

10. A method for operating a condenser of a wind turbine pump-driven heat dissipation system according to claim 1, characterized in that: The following steps are involved: The refrigerant in the lower manifold (4) is driven by the two-phase pump (11) to enter the cabin condenser (14) for heat exchange and heat absorption, then enters the upper manifold (3) and is cooled by air cooling, and then enters the lower manifold (4); The lubricating oil enters the cabin condenser (14) through the lubricating oil pump, the first oil pipe (13) and the oil inlet at the top of the cabin condenser (14) for heat exchange cooling, then enters the component to be cooled through the second oil pipe (15) for heat absorption to cool the component to be cooled, and then returns to the lubricating oil pump.

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