CN218816795U - Wind generating set - Google Patents

Abstract

The utility model provides a wind generating set, which relates to the technical field of wind driven generators and comprises a generator room, a heat exchanger and a first fan; the lower half part of the heat exchanger is communicated with the generator cabin to form a closed cabin body; the first fan is arranged outside the generator cabin and is respectively communicated with the generator cabin and the heat exchanger so as to extract air in the generator cabin to the heat exchanger and then send the air into the generator cabin for heat exchange. Through the wind generating set, the technical problem that the service life of a fan is seriously influenced by the heat dissipation mode of the existing generator room is solved, and the normal operation of the wind generating set can be ensured.

Description

Wind generating set

Technical Field

The utility model belongs to the technical field of aerogenerator technique and specifically relates to a wind generating set is related to.

Background

The wind generating set is a system for converting kinetic energy of wind into electric energy, and can generate a large amount of heat in the working process, and the heat needs to be dissipated as soon as possible so as to ensure that the wind generating set is not overheated and can normally operate.

The current common air-cooled heat dissipation mode is that a heat exchanger is arranged above a generator room, a fan is arranged in the generator room, heat generated by the wind generating set can be blown to the heat exchanger by the fan when the wind generating set works, and then secondary or tertiary heat dissipation is realized through the heat exchanger. The temperature in the generator cabin is relatively high, and the service life of the fan is influenced when the fan is in a high-temperature environment for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind generating set to solve the radiating mode in generator room among the correlation technique and seriously influence the fan and receive the technical problem of life-span.

In order to solve the technical problem, the utility model discloses the technical means who takes does:

the utility model provides a pair of wind generating set includes: the system comprises a generator room, a heat exchanger and a first fan;

the lower half part of the heat exchanger is communicated with the generator cabin to form a closed cabin body;

the first fan is arranged outside the generator cabin and is respectively communicated with the generator cabin and the heat exchanger so as to extract air in the generator cabin to the heat exchanger.

Further, the heat exchanger comprises a middle partition plate and two groups of heat pipe bundles;

the top end of the generator cabin is provided with an air outlet;

the two groups of heat pipe bundles are positioned above the air outlet and are respectively positioned at two sides of the axis of the air outlet, and in each group, a plurality of heat pipe bundles are vertically arranged;

the partition board is respectively vertically connected with the two groups of heat pipe bundles so as to partition the heat pipe bundles, and the two groups of heat pipe bundles are divided into two parts which are independent from each other up and down.

Further, the wind generating set also comprises a first guide plate;

the first guide plate is arranged above the air outlet and fixedly connected with the surface of the partition plate facing the air outlet, and two surfaces of the first guide plate are respectively opposite to the two groups of heat pipe bundles.

Further, the first guide plate comprises a first fixing part and a first guide part;

the first fixing part is fixedly connected to the partition plate;

the first flow guide part is hinged to the first fixing part so that an included angle between the first flow guide part and the vertical surface can be adjusted.

Further, the wind generating set also comprises a second guide plate;

the second guide plate is fixedly connected to the partition plate and symmetrically distributed with the first guide plate relative to the partition plate.

Further, the second guide plate comprises a second fixing part and a second guide part;

the second fixing part is fixedly connected to the partition plate;

the second flow guide part is hinged to the second fixing part so that an included angle between the second flow guide part and the vertical surface can be adjusted.

Furthermore, the first fans are arranged in two groups, and the two groups of first fans are located on two sides of the axis of the air outlet and are respectively communicated with the end parts, close to the air outlet, of the heat exchangers.

Further, the wind generating set also comprises a heat pipe tray;

the heat pipe tray is arranged above the generator cabin and below the heat pipe bundle;

the heat pipe bundle is flexibly fixed on the heat pipe tray.

Further, the wind generating set further comprises a liquid collector and an alarm device, wherein the liquid collector and the alarm device are arranged between the heat exchanger and the generator cabin.

Further, the wind generating set also comprises a second fan;

the second fan is arranged on the upper half part of the heat exchanger and between the two groups of heat pipe bundles of the heat exchanger, and discharges heat obtained by the heat exchanger from the generator cabin in an air suction mode.

Further, the wind generating set further comprises a control unit;

the control unit is respectively electrically connected with the second fan and the first fan according to temperature signals so as to respectively control the rotating speeds of the second fan and the first fan.

Further, the wind generating set further comprises a driving unit;

the driving unit is in transmission connection with the first flow guide part and the second flow guide part;

the control unit is also electrically connected with the driving unit to control the driving unit to drive the first flow guide part and the second flow guide part to rotate.

Compared with the prior art, the utility model provides a pair of wind generating set has the technical advantage to be:

in this application, first fan is external to the generator compartment to communicate with generator compartment and heat exchanger respectively. When the first fan is started, hot air in the generator cabin can be extracted, so that the hot air flows to the heat exchanger, and heat is transferred to the heat exchanger, thereby realizing heat dissipation and ensuring the normal operation of the wind generating set. Compared with the prior art, the first fan of the wind generating set is arranged outside the generator cabin, the temperature of the working environment of the first fan is reduced, and the service life of the first fan is guaranteed.

Drawings

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

Fig. 1 is a schematic view of a wind turbine generator system according to an embodiment of the present invention;

fig. 2 is an adjusting schematic diagram of a guide plate in a wind turbine generator system provided by an embodiment of the present invention.

Icon:

100-a generator compartment; 110-gas outlet;

200-a heat exchanger; 210-a heat pipe bundle; 220-a separator;

300-a first fan;

400-a first baffle; 410-a first fixed part; 420-a first flow guide;

500-a second baffle; 510-a second stationary part; 520-a second flow guide;

600-a second fan; 700-a control unit; 800-heat pipe trays; 900-liquid trap and alarm device.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the wind turbine generator system provided in the present embodiment includes a generator room 100, a heat exchanger 200, and a first fan 300; the lower half part of the heat exchanger 200 is communicated with the generator cabin 100 and forms a closed cabin body; the first fan 300 is disposed outside the generator compartment 100 and communicates with the generator compartment 100 and the heat exchanger 200, respectively, to draw air inside the generator compartment 100 to the heat exchanger 200 while blowing the air into the generator compartment 100.

With continued reference to FIG. 1, the motor portion of the first fan 300 is external to the generator compartment 100 and is in communication with the generator compartment 100 and the heat exchanger 200, respectively. When the first fan 300 is started, hot air in the generator room 100 can be extracted, so that the hot air uniformly flows to the heat exchanger 200 in a negative pressure state, heat is transferred to the heat exchanger 200, then heat exchange is performed between external cold air and the upper half part of the heat exchanger 200, and the heat is taken away, so that heat dissipation is realized; meanwhile, the first fan 300 blows cooled air into the generator room 100 to cool the stator, the rotor and other components in the generator room, so that a cooling cycle of the hot air side is completed in a cycle, and the normal operation of the wind generating set is ensured. It can be seen that, compared with the prior art, the first fan 300 of the wind turbine generator system is arranged outside the generator room 100, so that the temperature of the working environment of the motor part of the first fan 300 is reduced, and the service life of the first fan 300 is ensured.

In one embodiment of the present application, referring to FIG. 1, a heat exchanger 200 includes a baffle 220 and two sets of heat pipe bundles 210; the top end of the generator room 100 is provided with an air outlet 110; the two groups of heat pipe bundles 210 are positioned above the air outlet 110 and are respectively positioned at two sides of the axis of the air outlet 110, and in each group, the plurality of heat pipe bundles 210 are vertically arranged; the partition plates 220 are respectively vertically connected with the two groups of heat pipe bundles 210 to divide the heat pipe bundles 210; the first fan 300 is positioned at the downstream of the air flow of the heat pipe bundle 210 and at the air inlet side of the generator room 100, and when the first fan works, cold air is blown into the generator room 100, so that components such as a stator and a rotor can be effectively cooled, and no flow dead angle exists; the first fan 300 acts as a suction fan for the heat pipe bundle 210, and the hot air from the generator compartment 100 can uniformly flow through the heat pipe bundle 210 and exchange heat.

Specifically, as shown in fig. 1, two groups of heat pipe bundles 210 are symmetrically distributed about the axis of the air outlet 110, and a through air passage is formed between the two groups. The partition plate 220 divides the two groups of heat pipe bundles 210 into an upper part and a lower part, wherein the upper part is positioned in an external cold side environment, and the lower part, the partition plate 220 and the generator room 100 form a sealed space; meanwhile, the air passage is separated to form an upper passage and a lower passage, wherein the upper passage is communicated with the outside, and the lower passage is communicated with the generator room 100 and the lower parts of the two groups of heat pipe bundles 210; the wind generating set further comprises a second fan 600, wherein the second fan 600 is arranged in the upper half part of the heat exchanger 200 and is positioned between the two groups of heat pipe bundles 210 of the heat exchanger 200, namely above the upper channel, and is used for exhausting heat obtained by the heat exchanger 200 from the generator cabin 100 in an air suction mode.

With reference to fig. 1, when the wind turbine generator system operates, the first fan 300 is started to extract the hot air in the generator room 100, so that the hot air enters the lower channel through the air outlet 110 and flows to the lower part of the two groups of heat pipe bundles 210 continuously, so as to realize heat exchange, that is, the heat is transferred to the lower part, then the heat is transferred upwards along the heat pipe bundles 210, when the heat is transferred to the upper part, the heat exchange occurs between the cold air entering from the left side and the right side of the heat exchanger 200 and the upper part, the heat is taken away, and the air after heat exchange enters the upper channel and is pumped out to the outside by the second fan 600.

In addition, under the condition that the second fan 600 is not arranged, natural air cooling can be performed, air can be fed from one side of the heat exchanger 200 at the moment, and air can be discharged from the other side.

By adopting the design, the heat in the generator room 100 can be effectively radiated, and the normal operation of the wind generating set is ensured. In addition, the heat exchanger 200 both sides all can the air inlet, compares the air circuit of unilateral air inlet short, and the resistance is little, and cooling performance is good.

Further, referring to fig. 1, the wind turbine generator system further comprises a first deflector 400; the first guiding plate 400 is located above the air outlet 110 and fixedly connected to the surface of the partition 220 facing the air outlet 110, and two surfaces of the first guiding plate 400 are respectively opposite to the lower half portions of the two groups of heat pipe bundles 210.

Specifically, with reference to fig. 1, two sets of first fans 300 are provided, and the two sets of first fans 300 are respectively disposed on the leeward side of the lower end portions of the two sets of heat pipe bundles 210 and are respectively communicated with the corresponding sets of heat pipe bundles 210, so that the hot air extracted by the first fans can uniformly flow between the heat pipe bundles 210 in each set, thereby improving the heat exchange efficiency between the hot air and the heat pipe bundles 210; the first guide plate 400 separates the lower channel to form a left part and a right part, when the first fan 300 is started, hot air of the generator room 100 is divided into two parts by the first guide plate 400 to form two hot air circulation air paths, and the two parts of hot air respectively flow to the left and the right two groups of heat pipe bundles 210.

Further, referring to fig. 2, the first baffle 400 includes a first fixing portion 410 and a first flow guide portion 420; the first fixing portion 410 is fixedly connected to the partition 220; the first guide part 420 is hinged to the first fixing part 410 so as to adjust an included angle between the first guide part 420 and the vertical surface.

Specifically, as shown in fig. 2, the first fixing portion 410 is fixed on the bottom surface of the partition 220, and two opposite side surfaces of the first fixing portion 410 and the two sets of heat pipe bundles 210 are curved surfaces, and the curved surfaces are concave surfaces, so that when hot air flows out of the generator compartment 100, the concave surfaces can guide the hot air to flow to the heat pipe bundles 210 on two sides, thereby reducing air flow resistance and improving heat exchange efficiency; the first guide part 420 can rotate left and right around the hinge axis, and the maximum angle of the left and right rotation of the first guide part 420 can be 30 ° with respect to the vertical plane, for example, 0 °, 15 ° or 30 ° and the like, and by rotating the first guide part 420, the size of the hot air circulation area on the left and right sides of the first guide part 420 can be adjusted, thereby realizing the distribution of heat.

Referring to fig. 1, when most of heat is concentrated in the left space of the generator compartment 100, the first diversion part 420 can be rotated rightwards, so that the flow area on the left side of the first diversion part 420 becomes large, and the flow area on the right side becomes small, thereby realizing reasonable distribution of heat and ensuring that heat can be timely discharged to the outside. It should be noted that the specific rotation angle of the first diversion part 420 is determined according to the actual situation.

Further, referring to fig. 1, the wind turbine generator system further comprises a second deflector 500; the second baffle 500 is fixedly coupled to the partition 220 and symmetrically distributed with the first baffle 400 about the partition 220.

Specifically, with continued reference to fig. 1, the second baffle 500 separates the upper channel into a left part and a right part, and the cold air entering the heat pipe bundle 210 from the left and right sides enters the left upper channel and the right upper channel, respectively, after heat exchange, and is then extracted by the second fan 600. By adopting the design, the air after heat exchange is directly exhausted to the outside, so that the air can flow conveniently, the mutual interference is reduced, and the heat exchange efficiency is improved; the cold air is sucked from the two sides of the two groups of heat pipe bundles 210 at the same time, the temperature difference is large, and the cooling effect is further improved.

Further, referring to fig. 2, the second guide plate 500 includes a second fixing portion 510 and a second guide portion 520; the second fixing portion 510 is fixedly connected to the partition 220; the second guide part 520 is hinged to the second fixing part 510 to adjust an included angle between the second guide part 520 and the vertical surface.

Specifically, as shown in fig. 2, the second fixing portion 510 is fixed on the upper surface of the partition 220, two opposite side surfaces of the second fixing portion 510 and the two groups of heat pipe bundles 210 are curved surfaces, and the curved surfaces are concave surfaces, so that when the air after heat exchange enters the upper channel, the concave surfaces can guide the air to flow to the second fan 600, so as to reduce the air flow resistance and improve the discharge efficiency; the second guide part 520 can rotate left and right around the hinge axis, and relative to the vertical plane, the maximum angle of the left and right rotation of the second guide part 520 can be 30 degrees, exemplarily, 0 degree, 15 degrees or 30 degrees, etc., and by rotating the second guide part 520, the size of the ventilation area at the left and right sides of the second guide part 520 can be adjusted, and further the heat exchange amount of the cold air can be adjusted.

Referring to fig. 1, when the heat pipe bundle 210 transfers more heat at the left side than at the right side, the second guiding portion 520 may be rotated to the right, so that the flow area of the channel at the left side of the second guiding portion 520 is increased, and the flow area of the channel at the right side is decreased, so that the cold air at the left side from the left side can take away more heat. It can be seen that by adopting the design, when the heat distribution on the left side and the right side is uneven, the heat can be timely discharged to the outside, and effective heat dissipation is realized. Similarly, the specific rotation angle of the second guiding portion 520 is determined according to the actual situation.

In the above, the first diversion part 420 and the second diversion part 520 can adjust the ventilation area of the hot air circulation at the two sides of the generator room 100 and the rotating speed of the fan according to the condition that the surface temperature of the stator is uneven, so that the two circulation parts of the generator set can be cooled in a balanced manner.

Further, referring to fig. 1, the wind turbine generator system further includes a heat pipe tray 800, the heat pipe tray 800 is disposed at the lower end of the heat pipe bundle 210 and above the generator compartment 100, and the heat pipe bundle 210 is flexibly fixed to the heat pipe tray 800, so that the heat pipe bundle 210 is positioned, the heat pipe bundle 210 is prevented from shaking, and smooth heat dissipation is ensured; here, the flexible fixation, that is, an elastic fixing pad is arranged between the lower end of the heat pipe bundle 210 and the heat pipe tray 800, which can satisfy the thermal expansion and contraction of the heat pipe bundle 210.

Wind generating set still includes liquid trap and alarm device 900, and liquid trap and alarm device 900 set up between heat exchanger 200 and generator cabin 100 to be in heat pipe tray 800 below, can collect the liquid that the condensation flowed down on heat pipe bundle 210, and after liquid collects the certain degree, send alarm information, in order to make full of liquid suggestion to the external world.

Further, the liquid trap and alarm device 900 may be fixed to the heat exchanger housing for easy observation and prompting.

Further, with continued reference to fig. 1, the wind park further comprises a control unit 700 and a drive unit; the control unit 700 is electrically connected to the second fan 600 and the first fan 300, and controls the rotation speeds of the second fan 600 and the first fan 300 according to the temperature signal; the driving unit is in transmission connection with the first flow guide part 420 and the second flow guide part 520; the control unit 700 is also electrically connected to the driving unit to control the driving unit to drive the first flow guiding part 420 and the second flow guiding part 520 to rotate.

Specifically, according to the temperature value of the surface of the generator stator, the control unit 700 may correspondingly adjust the rotation speeds of the first fan 300 and the second fan 600, and control the driving unit to drive the rotation angles of the first diversion part 420 and the second diversion part 520, so as to control the stator temperatures at the two sides of the generator compartment 100 to be balanced and not to exceed the standard.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made on the technical solutions described in the foregoing embodiments, or some or all of the technical features of the present invention may be replaced by other technical features of the present invention without departing from the scope of the technical solutions of the present invention.

Claims (12)

1. A wind turbine generator set, comprising: the system comprises a generator room (100), a heat exchanger (200) and a first fan (300);

the lower half part of the heat exchanger (200) is communicated with the generator cabin (100) to form a closed cabin body;

the first fan (300) is arranged outside the generator room (100) and is respectively communicated with the generator room (100) and the heat exchanger (200) so as to extract air in the generator room (100) to the heat exchanger (200).

2. Wind park according to claim 1, wherein the heat exchanger comprises a partition (220) and two sets of heat pipe bundles (210);

the top end of the generator cabin (100) is provided with an air outlet (110);

the two groups of heat pipe bundles (210) are positioned above the air outlet (110) and are respectively positioned at two sides of the axis of the air outlet (110), and in each group, the plurality of heat pipe bundles (210) are vertically arranged;

the partition plates (220) are respectively and vertically connected with the two groups of heat pipe bundles (210) so as to divide the heat pipe bundles (210) and divide the two groups of heat pipe bundles (210) into two parts which are independent up and down.

3. Wind park according to claim 2, wherein the wind park further comprises a first deflector (400);

the first guide plate (400) is located above the air outlet (110) and fixedly connected with the surface, facing the air outlet (110), of the partition plate (220), and two surfaces of the first guide plate (400) are respectively opposite to the two groups of heat pipe bundles (210).

4. A wind park according to claim 3, wherein the first deflector (400) comprises a first fixing part (410) and a first flow guiding part (420);

the first fixing part (410) is fixedly connected to the partition plate (220);

the first flow guide part (420) is hinged to the first fixing part (410) so that an included angle between the first flow guide part (420) and a vertical surface can be adjusted.

5. A wind park according to claim 3, wherein the wind park further comprises a second deflector (500);

the second baffle (500) is fixedly connected to the partition (220) and symmetrically distributed with the first baffle (400) about the partition (220).

6. Wind park according to claim 5, wherein the second deflector (500) comprises a second fixing part (510) and a second flow guiding part (520);

the second fixing part (510) is fixedly connected to the partition plate (220);

the second flow guide part (520) is hinged to the second fixing part (510) so that an included angle between the second flow guide part (520) and a vertical surface can be adjusted.

7. Wind park according to claim 2, wherein there are two sets of first fans (300), two sets of first fans (300) being located on either side of the axis of the air outlet (110) and communicating respectively with the ends of the heat exchanger (200) close to the air outlet (110).

8. Wind park according to claim 2, wherein the wind park further comprises a heat pipe tray (800);

the heat pipe tray (800) is disposed above the generator compartment (100) and below the heat pipe bundle (210);

the heat pipe bundle (210) is flexibly fixed on the heat pipe tray (800).

9. Wind park according to claim 1, further comprising a liquid trap and alarm device (900), the liquid trap and alarm device (900) being arranged between the heat exchanger (200) and the generator nacelle (100).

10. Wind park according to any of claims 1 to 9, wherein the wind park further comprises a second wind turbine (600);

the second fan (600) is arranged on the upper half part of the heat exchanger (200) and between the two groups of heat pipe bundles (210) of the heat exchanger (200), and exhausts heat obtained by the heat exchanger (200) from the generator cabin (100) in an air suction mode.

11. Wind park according to claim 10, wherein the wind park further comprises a control unit (700);

the control unit (700) is electrically connected with the second fan (600) and the first fan (300) respectively to control the rotation speed of the second fan (600) and the first fan (300) respectively.

12. Wind park according to claim 11, wherein the wind park further comprises a drive unit;

the driving unit is in transmission connection with the first flow guide part (420) and the second flow guide part (520);

the control unit (700) is also electrically connected with the driving unit to control the driving unit to drive the first flow guide part (420) and the second flow guide part (520) to rotate.

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