CN219034900U - Wind power generation device for coal mine wind shaft - Google Patents
Wind power generation device for coal mine wind shaft Download PDFInfo
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- CN219034900U CN219034900U CN202223016211.3U CN202223016211U CN219034900U CN 219034900 U CN219034900 U CN 219034900U CN 202223016211 U CN202223016211 U CN 202223016211U CN 219034900 U CN219034900 U CN 219034900U
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- 238000010248 power generation Methods 0.000 title claims abstract description 36
- 239000003245 coal Substances 0.000 title claims abstract description 33
- 238000009792 diffusion process Methods 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 4
- 238000009826 distribution Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 13
- 238000009423 ventilation Methods 0.000 abstract description 12
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000012946 outsourcing Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 229910000861 Mg alloy Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a wind power generation device for a coal mine wind shaft, which belongs to the technical field of coal energy conservation and comprises a generator set, a charging controller and a storage battery pack; the generator sets are symmetrically arranged on the left side and the right side of the air opening of the diffusion tower by taking the axis of the mine air shaft ventilator as a symmetrical axis, and each set of generator sets comprises a frame, a mandrel, fan blades and an air generator; the spindles are rotatably arranged on the frame through bearings, and a plurality of fan blades are fixed on each spindle to form a wind wheel; the fan blades are of arc plate-shaped structures, the concave surface stretches into the inner side of the diffusion tower to form a windward surface, the convex surface is positioned on the outer side of the diffusion tower to form a leeward surface, and the bending directions of the fan blades of the generator sets at the two sides of the wind gap of the diffusion tower are opposite; the input end of the wind driven generator is connected with the mandrel, the output end of the wind driven generator is connected with the input end of the charging controller, and the output end of the charging controller is connected with the input end of the storage battery. The device has solved in the prior art in the pit ventilation air methane direct dispersion to the sky, and a large amount of energy is extravagant technical problem.
Description
Technical Field
The utility model belongs to the technical field of coal energy conservation, and particularly discloses a wind power generation device for a coal mine wind shaft.
Background
Energy conservation is a persistent topic for realizing sustainable development strategic targets in China, and the energy conservation work saves resources, improves the energy utilization rate, protects the environment and can promote the technical and economic development.
The ventilation system is a life line of mine engineering, and provides continuous fresh air for underground, the fresh air usually enters from the main well mouth and the auxiliary well mouth, and is discharged from the wind hole of the wind shaft diffusion tower, and the continuous underground ventilation air accompanies the whole life cycle of the mine.
According to the requirements of wind power generation design specification, the average wind speed of a wind field is more than 3m/s, the effective wind time is more than 4000 hours, and the annual average effective wind energy power density is 150w/m 2 。
The mine air shaft ventilator works 24 hours a day, 365 days a year, the air quantity is huge (see table 1), the air speed is constant, the average air speed is more than 10 meters per second, the effective air time is 8760 hours, and the annual average effective wind energy power density is 600-2025 w/m 2 (see Table 2), (due to the requirements of the "coal mine safety regulations" for wind shaft and wind)The highest wind speed of the tunnel is limited to be below 15m/s, so the highest wind speed is calculated according to 15 m/s). The control is simpler without the start-up wind speed and stop wind speed 2 stages.
Table 1 production mine downhole ventilation statistics
Description: 1. statistical Table 1 was taken from the handbook of coal mine engineering design;
2. the wind speed of the air outlet is calculated according to 10-15 m/s.
Table 2 wind energy density calculating table
| Sequence number | Wind speed v/m/s | Wind power P/w | Wind energy density E/j/ |
| 1 | 10 | 600 | 600 |
| 2 | 11 | 798.6 | 798.6 |
| 3 | 12 | 1036.8 | 1036.8 |
| 4 | 13 | 1318.2 | 1318.2 |
| 5 | 14 | 1646.4 | 1646.4 |
| 6 | 15 | 2025 | 2025 |
Description: 1. wind energy density formula: e=0.6×v 3 ；
2. The highest wind speed of the wind shaft and the wind tunnel of the coal mine safety regulations is 15 m/s.
The ventilation tower of the ventilator is an air outlet in the whole mine shaft, the air outlet of the diffusion tower is different in size according to the air outlet of the ventilator, the exhausted underground ventilation air is dispersed into the air, and a large amount of energy is wasted.
Disclosure of Invention
The utility model provides a wind power generation device for a coal mine wind shaft, which aims to solve the technical problem that underground ventilation air methane is directly scattered into the air and a large amount of wind energy is wasted in the prior art.
The wind power generation device for the coal mine wind shaft comprises a generator set, a charging controller and a storage battery pack; the generator sets are symmetrically arranged on the left side and the right side of the air opening of the diffusion tower by taking the axis of the mine air shaft ventilator as a symmetrical axis, and each set of generator sets comprises a frame, a mandrel, fan blades and an air generator; the spindles are arranged on the frame through bearings, and a plurality of fan blades are fixed on each spindle to form a wind wheel; the fan blades are of arc plate-shaped structures, in order to improve efficiency and reduce resistance, the concave surface stretches into the inner side of the diffusion tower to be a windward surface, the convex surface is positioned on the outer side of the diffusion tower to be a leeward surface, and the bending directions of the fan blades of the generator sets on the two sides of the wind gap of the diffusion tower are opposite; the input shaft of the wind driven generator is connected with the mandrel through a coupler, the generated electricity is connected with the input end of the charging controller through a transmission line, and the output end of the charging controller is connected with the input end of the storage battery.
Further, each group of generator sets comprises a front group of fan blades and a rear group of fan blades, the front group of fan blades and the rear group of fan blades are the same mandrel, and the front group of fan blades and the rear group of fan blades are arranged in a staggered mode. The fan blade is made of light aluminum alloy material, magnesium alloy material, engineering plastic material or carbon fiber material so as to reduce the consumption of wind energy.
Further, the front and rear groups of fan blades are three fan blades fixed at equal angles, the front and rear groups of fan blades form a three-head rolling type two-section wind wheel, and the front and rear groups of fan blades are staggered by 30 degrees.
Further, the coal mine wind shaft wind power generation device further comprises an inverter connected with the output end of the storage battery.
Further, the charging controller, the storage battery and the inverter of the coal mine wind shaft wind power generation device are all arranged in a wind shaft distribution room outside the safe distance.
Further, the wind driven generator is an explosion-proof wind driven generator.
Further, the power transmission line of the wind driven generator is sent to the wind shaft distribution room along the upright post of the frame through the underground buried pipe.
The utility model has the following beneficial effects:
the method has the advantages that waste mine ventilation air methane is fully utilized for power generation, energy is saved, power generation efficiency is high, cost performance is high, and the technical problem that a great amount of energy is wasted due to the fact that underground ventilation air methane is directly scattered into the air in the prior art is solved;
the wind power generation device of the coal mine wind shaft has no influence on mine safety and surrounding environment;
the wind power generation device of the coal mine wind shaft is an independent system, has a simple structure, is convenient to manufacture and install, is convenient for the application of established and newly established mines, and is easy to realize serialization and modularized design and manufacture;
the mine ventilation air methane utilization scheme is low in price, low in investment and easy to implement.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a layout of a generator set;
FIG. 2 is a view in the direction A-A of FIG. 1;
FIG. 3 is a view in the direction B-B of FIG. 1;
FIG. 4 is a view in the direction C-C of FIG. 1;
FIG. 5 is a diagram illustrating the connection between the generator set and the charge controller, battery pack, and inverter of FIG. 2;
fig. 6 is a diagram showing connection between the generator set and the charge controller, the battery pack, and the inverter shown in fig. 3.
In the figure: 1-a charge controller; 2-a battery pack; a 3-inverter; 4-a frame; 5-a mandrel; 6-fan blades; 7-a wind power generator; 8-bearing; 9-a wind shaft distribution room; 10-a generator set I; 11-a generator set II; 12-generating set III; 13-a generator set IV; 14-power transmission lines;
101-a return air vertical shaft; 102-wind tunnel; 103-a mine air shaft ventilator; 103 a-working fans; 103 b-a standby fan; 104-a diffuser tuyere; 105-wind direction indication; 106, fan blade rotation direction indication; 107-terrace.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The wind power generation device for the coal mine wind shaft comprises a generator set, a charging controller 1, a storage battery pack 2 and an inverter 3.
The generator sets are symmetrically arranged on the left side and the right side of the air port 104 of the diffusion tower by taking the axis of the mine air shaft ventilator 103 as a symmetrical axis, and each set of generator sets comprises a frame 4, a mandrel 5, fan blades 6 and a wind driven generator 7; the mandrels 5 are rotatably arranged on the frame 4 through bearings 8, and a plurality of fan blades 6 are fixed on each mandrel 5 to form a wind wheel; the fan blades 6 are of arc plate-shaped structures, the concave surface stretches into the inner side of the diffusion tower to form a windward surface, and aerodynamic moment is generated on the fan blades 6, so that the fan blades 6 obtain continuous rotation power, and the convex surface is positioned on the outer side of the diffusion tower to form a leeward surface, so that wind resistance is reduced; the bending directions of the fan blades 6 of the generator sets at the two sides of the air opening 104 of the diffusion tower are opposite; when the fan blade 6 is installed, a wind speed measuring instrument is used for selecting proper installation height of the fan blade 6, and the installation of the fan blade 6 does not influence the wind flow pressure of the air port 104 of the diffusion tower; the input end of the wind driven generator 7 is connected with the mandrel 5, the output end is connected with the input end of the charging controller 1, the output end of the charging controller 1 is connected with the input end of the storage battery pack 2, and the output end of the storage battery pack 2 is connected with the inverter 3.
Further, each group of generator sets comprises a front group of fan blades 6 and a rear group of fan blades 6, the mandrels 5 of the front group of fan blades 6 and the rear group of fan blades 6 are connected into a whole or are the same mandrel, and the front group of fan blades 6 and the rear group of fan blades 6 are arranged in a staggered mode so as to reduce the frequency change of wind load. The fan blade 6 is made of light aluminum alloy material, magnesium alloy material, engineering plastic material or carbon fiber material so as to reduce the consumption of wind energy.
Further, the front and rear sets of fan blades 6 are three fan blades 6 with fixed equal angles, the front and rear sets of fan blades 6 form a three-head rolling type two-section wind wheel, and the front and rear sets of fan blades 6 are staggered by 30 degrees.
Further, the charging controller 1, the storage battery pack 2 and the inverter 3 of the coal mine wind shaft wind power generation device are all arranged in the wind shaft power distribution room 9.
Further, the wind power generator 7 is an explosion-proof wind power generator.
Further, the power line 14 of the wind power generator 7 is sent into the wind shaft distribution room 9 along the upright post of the frame 4 through the underground buried pipe.
The wind power generation device of the coal mine wind shaft is built in an industrial site of the coal mine wind shaft, and has the advantages of convenience in traffic and good grid connection condition. The generated electricity is firstly used in daily use of the air supply well, and the abundant electricity is connected with the grid, so that the energy-saving system is a good green energy-saving project.
The whole power generation device is an independent system, is very simple in design, manufacture, installation and manufacturing cost, can not influence the safe production of the existing wind well system, and can not influence the surrounding environment of the wind well.
The conditions of the wind power generation device of the coal mine wind shaft are all conditions which are not possessed by wind places such as Gobi desert, barren mountain and coastal wind fields (see Table 3).
Table 3 wind power generation analysis meter
| Project name | Natural wind field | Wind power generation device of wind shaft |
| Wind energy resource | Random, intermittent and wave motion | Continuous and stable |
| Average wind speed m/s | ＞3 | 10～15 |
| Annual effective wind time/h | 4000 | 8760 |
| Annual average effective wind energy power density w/m 2 | 150 | 600～2025 |
| Fan mounting height/m | 60-70 |
5～6m |
| Traffic conditions | Inconvenience of | Convenient and convenient |
| Grid-connected condition | Preferably, it is | Good (good) |
| Construction conditions | Difficulty in | Good (good) |
| Investment conditions | Very high | Lower level |
Conclusion: 1. wind energy resources are necessary conditions for wind power generation, and the wind power generation device of the coal mine wind shaft has the best wind energy resources;
2. it can be seen from Table 3 that the wind power generation device for the coal mine wind shaft has very excellent construction conditions and necessity.
By researching the universality and the practicability of the coal mine wind power generation device, the power generation condition is superior to that of solar power generation facilities, is superior to that of wind fields such as Gobi desert, barren mountain, coastal wind fields and the like, and the investment cost of the power generation set is much lower than that of the power generation set.
The underground ventilation quantity of the established mine is counted and compared, the wind speed of underground ventilation is counted and analyzed, and a plurality of basic works are made for the application of the wind power generation device of the coal mine.
Design is carried out on the whole arrangement, model selection and complete set (see table 4);
table 4 list of wind power plant devices for wind shaft
| Sequence number | Name of the name | Number/station, | Material | Remarks | |
| 1 | Three-head rolling type double-section | Group | 4 | Aluminum alloy | Or magnesium alloy, engineering plastic and |
| 2 | Explosion-proof wind driven |
4 | |
||
| 3 | |
4 | Steel | Outsourcing piece | |
| 4 | |
1 | |
||
| 5 | Storage | Group | 1 | |
|
| 6 | Inverter with a |
1 | |||
| 7 | Electric wire | m | Outsourcing piece |
Description: the apparatus is configured with two sets of mine shaft ventilators 103 (working fan 103a and backup fan 103 b) for one return shaft 101.
Preliminary estimates of the cost of the wind power generation device for the coal mine wind shaft are made (see table 5).
Table 5 genset component list
| Sequence number | Part name | Quantity of | |
| 1 | |
6 | |
| 2 | |
1 | |
| 3 | |
3 | |
| 4 | |
1 | |
| 5 | Explosion-proof wind driven |
1 | |
| 6 | |
1 | |
| 7 | Foundation bolt (for fixed frame) | 6 | |
| 8 | |
6 | Outsourcing piece |
Description: (1) the materials of a generator set are shown in the table, and the whole system has four groups;
(2) the wind power generation device of the coal mine wind shaft has the advantages of simple structure and high cost performance.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. The wind power generation device for the coal mine wind shaft is characterized by comprising a generator set, a charging controller and a storage battery pack;
the generator sets are symmetrically arranged on two sides of the air opening of the diffusion tower by taking the axis of the mine air shaft ventilator as a symmetrical axis, and each set of generator sets comprises a frame, a mandrel, fan blades and an air generator;
the mandrels are rotatably arranged on the frame, and a plurality of fan blades are fixed on each mandrel to form a wind wheel;
the fan blades are of arc plate-shaped structures, the concave surface stretches into the inner side of the diffusion tower to be a windward surface, the convex surface is positioned on the outer side of the diffusion tower to be a leeward surface, and the bending directions of the fan blades of the generator sets at the two sides of the wind gap of the diffusion tower are opposite;
the input end of the wind driven generator is connected with the mandrel, the output end of the wind driven generator is connected with the input end of the charging controller, and the output end of the charging controller is connected with the input end of the storage battery.
2. The wind power generation device of the coal mine wind shaft according to claim 1, wherein each group of generator sets comprises a front group of fan blades and a rear group of fan blades, the central axes of the front group of fan blades and the rear group of fan blades are connected or are the same central axis, and the front group of fan blades and the rear group of fan blades are arranged in a staggered mode.
3. The wind power generation device of the coal mine wind shaft according to claim 2, wherein the front and rear sets of blades are three blades fixed at equal angles, the front and rear sets of blades form a three-head rolling type two-section wind wheel, and the front and rear sets of blades are staggered by 30 degrees.
4. A wind power plant for a coal mine as claimed in claim 3, further comprising an inverter connected to the output of the battery.
5. The wind power generation device of the coal mine wind shaft according to claim 4, wherein the charging controller, the storage battery and the inverter are all installed in a wind shaft distribution room.
6. The wind power generation device for a coal mine wind shaft according to claim 5, wherein the wind power generator is an explosion-proof wind power generator.
7. A wind power plant for a wind shaft in a coal mine as claimed in claim 5 or claim 6, wherein the power lines of the wind power generator are routed along the uprights of the frame through underground pipes to the wind shaft distribution room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223016211.3U CN219034900U (en) | 2022-11-14 | 2022-11-14 | Wind power generation device for coal mine wind shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223016211.3U CN219034900U (en) | 2022-11-14 | 2022-11-14 | Wind power generation device for coal mine wind shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219034900U true CN219034900U (en) | 2023-05-16 |
Family
ID=86314176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223016211.3U Expired - Fee Related CN219034900U (en) | 2022-11-14 | 2022-11-14 | Wind power generation device for coal mine wind shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219034900U (en) |
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2022
- 2022-11-14 CN CN202223016211.3U patent/CN219034900U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230516 |