CN220492809U - High-efficiency low-noise air-air cooler for 7MW wind driven generator - Google Patents
High-efficiency low-noise air-air cooler for 7MW wind driven generator Download PDFInfo
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- CN220492809U CN220492809U CN202321730626.9U CN202321730626U CN220492809U CN 220492809 U CN220492809 U CN 220492809U CN 202321730626 U CN202321730626 U CN 202321730626U CN 220492809 U CN220492809 U CN 220492809U
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- air inlet
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- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 230000030279 gene silencing Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a high-efficiency low-noise air cooler for a 7MW wind driven generator, which comprises a shell, wherein the lower end of the shell is communicated with the air inlet and the air outlet of the generator, one side of the shell is connected with an external air inlet device, the other side of the shell is connected with an external air outlet device, the external air inlet device and the air outlet device are communicated through a plurality of cooling tube bundles, two sides of a lower air inlet are respectively provided with a lower partition plate in the shell between two lower air outlets, the cooling tube bundles are elliptical tube bundles, the external air inlet device comprises an air inlet collecting box, two 11kW centrifugal fans are horizontally and symmetrically connected to the outer sides of the air inlet collecting box, and the respective motors of the two 11kW centrifugal fans are arranged on the inner sides of the two 11kW centrifugal fans and are arranged and fixed on a middle mounting disc of the air inlet collecting box; the air inlet air collecting box is communicated with the air outlet device through a plurality of cold pipe bundles, and the air inlet air collecting box is also communicated with a slip ring cooling air supply pipe of the slip ring chamber at the tail end of the generator correspondingly through an air inlet pipe joint. The generator slip ring cooling device is simple and compact in structure, can meet heat exchange power of up to 7MW, and has low noise and generator slip ring cooling function.
Description
Technical Field
The utility model relates to an air-air cooler, in particular to a high-efficiency low-noise air-air cooler for a 7MW wind driven generator.
Background
Along with the continuous updating and iteration of products, the power of a generator in a wind power market is continuously increased, the heat exchange power of a conventional air-air cooler normally reaches about 5MW due to the limitation of a self heat exchange principle, and the high-power cooler is usually designed as air-water, but the manufacturing cost of the air-water cooler is higher. Therefore, the high-performance air-air cooler becomes the development direction of the development and application of the current cooler. If the power of the heat exchange ventilation fan is directly increased, the heat exchange efficiency utilization rate of the cooler, and the overall operation vibration and noise have great challenges.
Disclosure of Invention
The utility model provides the efficient low-noise air-air cooler for the 7MW wind driven generator, which has the advantages of simple and compact structure, capability of meeting the heat exchange power of up to 7MW and low noise and generator slip ring cooling function.
The technical scheme adopted by the utility model is as follows: the utility model provides a high-efficient low noise air cooler for 7MW aerogenerator, includes the casing, sets up a lower air intake that communicates the generator and advances hot-blast in the middle of the casing bottom, and two lower air outlets that communicate the generator and supply cold wind are offered respectively to casing bottom both sides, and outer hot air inlet unit of casing side joint, another side joint air-out device, outside advance, air-out device communicate through many cooling tube bundles between, are equipped with lower baffle in the casing between two lower air outlets respectively in lower air intake both sides, its characterized in that; the cooling tube bundle is an elliptical tube bundle, the external air inlet device comprises an air inlet air collecting box, two 11kW centrifugal fans are horizontally and symmetrically connected to the outer side of the air inlet air collecting box, and motors of the two 11kW centrifugal fans are respectively arranged on the inner sides of the two 11kW centrifugal fans and are installed and fixed on a middle installation plate of the air inlet air collecting box; the air inlet air collecting box is communicated with the air outlet device through a plurality of cold pipe bundles, and the air inlet air collecting box is also connected with a slip ring cooling air supply pipe correspondingly communicated with a slip ring chamber at the tail end of the generator through an air guiding pipe, and the air guiding pipe is connected in the shell in a penetrating way or is externally connected on the shell.
Further, an upper partition plate is arranged in the shell corresponding to the middle position of the lower air inlet, the upper end of the upper partition plate is connected with the upper wall of the shell, and a neutral position is reserved between the lower end of the upper partition plate and the lower wall of the shell.
Further, the lower end of the upper partition plate is lower than the upper end of the lower partition plate.
Further, the cooling tube bundle is an elliptical aluminum tube bundle.
Further, the slip ring cooling blast pipe is arranged at one side of the air outlet device.
Further, the air outlet device is an outward-expansion horn-shaped air outlet cover.
Further, the inner wall of the outer expansion horn-shaped air outlet cover is provided with a silencing and sound absorbing layer.
Further, the inner core of the noise reduction and sound absorption layer is a glass noise reduction cotton layer or a ceramic fiber noise reduction cotton layer, and the outer core is wrapped with flame-retardant non-woven fabrics.
Further, a mesh plate is arranged on the outer opening of the outer expansion horn-shaped air outlet cover.
The high-efficiency low-noise air cooler for the 7MW wind driven generator is designed in a breakthrough manner based on a conventional air cooler, a traditional heat exchange round tube is changed into an elliptical aluminum tube bundle, the heat exchange area and the heat exchange efficiency are increased, an upper partition plate is matched with a lower partition plate at two sides, hot air entering from a lower air inlet is separated and bypasses and then is sent to a lower air outlet, and the utilization rate of the elliptical aluminum tube bundle is increased; the air inlet collecting box is externally connected with two 11kW centrifugal fans, the center of a motor of each fan is symmetrically arranged on the inner side, air is introduced from the outer side of each fan, the running stability of the whole machine under the conditions of sufficient air inlet quantity and larger heat exchange requirement is effectively ensured, vibration reduction and noise reduction are facilitated, the air inlet collecting box is connected with an air guide pipe, the air guide pipe cools and supplies air to a slip ring chamber at the tail end of the generator through a slip ring cooling and air supply pipe, and the slip ring chamber is provided with the cooling function; the noise-reducing and sound-absorbing layer is added in the fan housing of the air outlet device, the mesh plate is additionally arranged at the outer opening, and the sound-absorbing and noise-reducing performance is improved in multiple aspects.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic structural diagram of the wind outlet device in fig. 1.
In the figure: the device comprises a shell 1, a lower air inlet 2, a lower air outlet 3, a lower partition plate 4, an upper partition plate 5, an elliptical aluminum tube bundle 6, an air inlet collecting box 7, an 11kW centrifugal fan 8, an air guiding pipe 9, a slip ring cooling air supplying pipe 10, an outer expanding horn-shaped air outlet cover 11, a silencing and sound absorbing layer 12, a mesh plate 13 and a generator 14.
Detailed Description
Further description is provided below with reference to the accompanying drawings.
Fig. 1-3 show: a high-efficiency low-noise air cooler for a 7MW wind driven generator is characterized in that a lower air inlet 2 for communicating a generator 14 to feed hot air is formed in the middle of the bottom of a shell 1, two lower air outlets 3 for communicating the generator 14 to supply cold air are formed in two sides of the bottom of the shell 1, a lower partition plate 4 is arranged in the shell between the two lower air outlets on two sides of the lower air inlet, an upper partition plate 5 is arranged in the shell 1 corresponding to the middle position of the lower air inlet, the upper end of the upper partition plate 5 is connected with the upper wall of the shell, a neutral position is reserved between the lower end of the upper partition plate and the lower wall of the shell, and the lower end of the upper partition plate is lower than the upper end of the lower partition plate. Two 11kW centrifugal fans 8 are connected through two air inlet collection bellows 7 symmetry on one side of casing 1, and the motor inboard of two 11kW centrifugal fans 8 sets up and fixes on the middle mounting disc of air inlet collection bellows 7, and casing 1 another side is connected to expand outer loudspeaker shape air-out cover 11 outward, and two air inlet collection bellows 7 are connected to expand outer loudspeaker shape air-out cover 11 through many oval aluminium tube bank 6 level cross-connections, and outer loudspeaker shape air-out cover inner wall sets up amortization sound absorbing layer 12 outward, and outer loudspeaker shape air-out cover outer mouth of expanding is last to set up mesh plate 13.
In this embodiment, the air inlet air collecting box is also connected to a slip ring cooling air supply pipe 10 correspondingly communicated with a slip ring chamber at the tail end of the generator through an air guiding pipe 9, and the air guiding pipe is connected in the shell in a penetrating way. The slip ring cooling blast pipe is arranged at one side of the wind outlet device.
In this embodiment, the inner core of the sound-damping and sound-absorbing layer is a glass sound-damping cotton layer or a ceramic fiber sound-damping cotton layer, and the outer core is wrapped with flame-retardant non-woven fabric.
Claims (9)
1. The utility model provides a high-efficient low noise air cooler for 7MW aerogenerator, includes the casing, sets up a lower air intake that communicates the generator and advances hot-blast in the middle of the casing bottom, and two lower air outlets that communicate the generator and supply cold wind are offered respectively to casing bottom both sides, and outer hot air inlet unit of casing side joint, another side joint air-out device, outside advance, air-out device communicate through many cooling tube bundles between, are equipped with lower baffle in the casing between two lower air outlets respectively in lower air intake both sides, its characterized in that; the cooling tube bundle is an elliptical tube bundle, the external air inlet device comprises an air inlet air collecting box, two 11kW centrifugal fans are horizontally and symmetrically connected to the outer side of the air inlet air collecting box, and motors of the two 11kW centrifugal fans are respectively arranged on the inner sides of the two 11kW centrifugal fans and are installed and fixed on a middle installation plate of the air inlet air collecting box; the air inlet air collecting box is communicated with the air outlet device through a plurality of cold pipe bundles, and the air inlet air collecting box is also connected with a slip ring cooling air supply pipe correspondingly communicated with a slip ring chamber at the tail end of the generator through an air guiding pipe, and the air guiding pipe is connected in the shell in a penetrating way or is externally connected on the shell.
2. The efficient low-noise air-air cooler for 7MW wind generators of claim 1, wherein: an upper partition plate is arranged in the shell corresponding to the middle position of the lower air inlet, the upper end of the upper partition plate is connected with the upper wall of the shell, and a neutral position is reserved between the lower end of the upper partition plate and the lower wall of the shell.
3. The efficient low-noise air-air cooler for 7MW wind generators of claim 2, wherein: the lower end of the upper partition plate is lower than the upper end of the lower partition plate.
4. The efficient low-noise air-air cooler for 7MW wind generators of claim 1, wherein: the cooling tube bundle is an elliptic aluminum tube bundle.
5. The efficient low-noise air-air cooler for 7MW wind generators of claim 1, wherein: the slip ring cooling blast pipe is arranged at one side of the air outlet device.
6. The efficient low-noise air-air cooler for 7MW wind generators of claim 1, wherein: the air outlet device is an outward-expansion horn-shaped air outlet cover.
7. The efficient low-noise air-air cooler for 7MW wind generators of claim 6, wherein: the inner wall of the outer expansion horn-shaped air outlet cover is provided with a silencing and sound absorbing layer.
8. The efficient low-noise air-air cooler for 7MW wind generators of claim 7, wherein: the inner core of the noise-reduction sound-absorbing layer is a glass noise-reduction cotton layer or a ceramic fiber noise-reduction cotton layer, and the outer core is wrapped with flame-retardant non-woven fabrics.
9. The efficient low-noise air-air cooler for 7MW wind generators of claim 7, wherein: and a mesh plate is arranged on the outer opening of the outer expansion horn-shaped air outlet cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321730626.9U CN220492809U (en) | 2023-07-04 | 2023-07-04 | High-efficiency low-noise air-air cooler for 7MW wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321730626.9U CN220492809U (en) | 2023-07-04 | 2023-07-04 | High-efficiency low-noise air-air cooler for 7MW wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220492809U true CN220492809U (en) | 2024-02-13 |
Family
ID=89837102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321730626.9U Active CN220492809U (en) | 2023-07-04 | 2023-07-04 | High-efficiency low-noise air-air cooler for 7MW wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220492809U (en) |
-
2023
- 2023-07-04 CN CN202321730626.9U patent/CN220492809U/en active Active
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