CN209908662U - Wind-driven high-speed rotating eddy heating system - Google Patents
Wind-driven high-speed rotating eddy heating system Download PDFInfo
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- CN209908662U CN209908662U CN201920070788.1U CN201920070788U CN209908662U CN 209908662 U CN209908662 U CN 209908662U CN 201920070788 U CN201920070788 U CN 201920070788U CN 209908662 U CN209908662 U CN 209908662U
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- 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
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses a high-speed rotatory vortex heating system of wind energy drive, including the wind energy machine, vortex heater and heat accumulator, vortex heater includes the main shaft, tube-shape stator and the coaxial column permanent magnet rotor that sets up at tube-shape stator inner chamber, form stator water jacket intermediate layer between the interior barrel of tube-shape stator, main shaft and wind energy machine transmission in the vortex heater are connected, utilize the magnetic eddy current effect, the mechanical energy that produces the wind energy machine divides partly to directly turn into heat energy through vortex heater, and then the feedwater in the heating stator water jacket intermediate layer and produce hot water, the remaining mechanical energy of wind energy machine can be used to drive power generation facility, make the wind energy machine can also heat the feedwater when having the electricity generation link, the efficiency and the economic nature of wind energy machine have been improved.
Description
Technical Field
The utility model relates to a wind energy heating system, in particular to wind energy drive high-speed rotatory vortex heating system.
Background
With the improvement of the urbanization rate, the removal of small regional boilers and the transformation of pipe networks in old urban areas, the centralized heating of cities and towns in China has a huge gap, the heating area of residences in cities and towns in China keeps high-speed growth in recent years, but the coverage rate of the centralized heating of China is still at a low level, a centralized heating system is only built in main cities and towns in northern provinces at present, the average coverage rate is less than 50%, the cities and towns in south and vast rural areas in China basically have no centralized heating facilities, the cities and towns in developed countries such as Finland and Denmark can be heated only by independent heating modes such as a natural gas furnace, an air conditioner, an electric furnace and honeycomb briquette, the coverage rate of the urban centralized heating of the cities and the cities in.
The urban heat supply industry in China still uses coal as main fuel, the annual coal consumption is more than 1.5 hundred million tons, and the lagging capacity of high pollution and low efficiency in the industry is more than 50 percent. Because coal heating is eliminated, solar energy, wind energy and other clean energy sources gradually become new heating force in winter. China has rich wind energy resources and has a prospect of large-scale development and utilization. The wind energy heat supply can solve the pollution problem caused by coal heating on one hand, and can relieve the problem of wind power abandoning and electricity limiting on the other hand. And the eddy current is directly driven by wind power to supply heat, so that the energy conversion loss in the intermediate conversion process can be effectively reduced, the wind energy utilization efficiency is improved, and the heat supply gap in China is filled.
In the existing wind power heating system, a heating device generates heat through friction between a stirring blade and water in a container, mechanical energy is converted into heat energy, but the conversion efficiency is low, and the scientific energy utilization principle of temperature mouth-to-mouth and gradient utilization is not met; or the permanent magnet eddy current heating machine is driven by wind power to heat, but the permanent magnet of the eddy current heating component adopts an alternating magnetic disk, the magnetic disk has larger volume, and an opening system is adopted to heat air, so the loss of hot air loss is larger.
SUMMERY OF THE UTILITY MODEL
To overcome the above-mentioned shortcomings and drawbacks of the prior art, the present invention is directed to a wind driven high speed rotational vortex heating system. The system utilizes the magnetic eddy effect to directly convert the mechanical energy generated by the wind turbine into heat energy, and further heats the feed water in the stator water jacket interlayer to generate hot water.
The utility model discloses a realize that the technical scheme that its technical purpose adopted does:
a wind energy driven high-speed rotation heating system comprises a wind machine, a vortex flow heater and a heat accumulator and is characterized in that,
the eddy current heater at least comprises a main shaft, a cylindrical stator and a cylindrical permanent magnet rotor coaxially arranged in the inner cavity of the cylindrical stator, wherein,
the cylindrical stator comprises a cylindrical stator inner wall, a cylindrical stator outer wall and top covers, wherein the cylindrical stator outer wall is sleeved on the periphery of the cylindrical stator inner wall in a sleeved mode, the top covers are arranged at two ends of the cylindrical stator outer wall, the cylindrical stator inner wall and the cylindrical stator outer wall are both made of metal, and a closed stator water jacket interlayer is formed in a space between the cylindrical stator inner wall and the cylindrical stator outer wall through the top covers at the two ends of the cylindrical stator inner wall and the cylindrical stator outer wall;
the input end of the main shaft is in transmission connection with the wind turbine, and the main shaft is rotatably supported on top covers at two ends of the cylindrical stator;
the columnar permanent magnet rotor comprises a columnar rotor iron core and a cylindrical permanent magnet embedded at the periphery of the columnar rotor iron core, a central through hole is formed in the center of the columnar rotor iron core along the axis of the columnar rotor iron core, the columnar permanent magnet rotor is coaxially sleeved on the main shaft through the central through hole and is in transmission connection with the main shaft through a clutch device, and when the columnar permanent magnet rotor rotates in the cylindrical stator, electromagnetic eddy current generated between the columnar permanent magnet rotor and the cylindrical stator is converted into heat and stored in water flow in a water jacket interlayer of the stator;
the heat accumulator forms a water flow circulation loop with the stator water jacket interlayer on the cylindrical stator through a water flow pipeline, so as to transmit the heat generated by the vortex flow heater to the heat accumulator through water flow.
Preferably, the wind turbine is a horizontal axis wind turbine or a vertical axis wind turbine, and a low-speed output shaft of the wind turbine is in transmission connection with the input end of the main shaft through a speed-increasing gearbox.
Preferably, the input end of the speed-increasing gear box is connected with the low-speed output shaft of the wind turbine through a coupler, the output end of the speed-increasing gear box is connected with the input end of the main shaft through a coupler, and the output end of the speed-increasing gear box is provided with a braking device.
Preferably, the end of the main shaft is connected with a generator through a coupling, a part of electricity generated by the generator is merged into a power grid through an inverter, and the other part of electricity is stored in a storage battery through a controller.
Preferably, the permanent magnets are uniformly distributed on the rotor core along the axial direction, and the magnetic poles of the permanent magnets are distributed in a staggered manner; the cylindrical stator inner wall is made of carbon steel materials, and the cylindrical stator outer wall is made of silicon steel materials. The permanent magnet rotor rotates at a high speed to generate an alternating magnetic field, the metal stator is influenced by the changing magnetic field to generate an eddy current, so that the metal stator generates heat and heats feed water in a water jacket interlayer of the stator to reach rated water temperature.
Preferably, a radial gap is formed between the cylindrical permanent magnet rotor and the inner wall of the cylindrical stator. Preferably, the radial gap is 1 mm.
Preferably, the heat accumulator is also in communication with the thermal consumer unit via a water flow line. The thermal consumer unit is preferably a radiator, a domestic water unit or the like.
Preferably, the heat accumulator is a phase change heat accumulator or a heat accumulation water tank.
Further, the phase change heat storage material in the phase change heat accumulator is crystalline hydrated salt. If a phase-change heat accumulator is used for storing heat, the heat storage density is high, the output water temperature can be constant, crystalline hydrated salt is generally used as a phase-change material, Ba (OH) 2.8H 2O can be used as the heat accumulator, and the phase-change temperature is 78 ℃. The crystalline hydrated salt has the advantages of low price, high heat storage density, strong heat conductivity, small phase change volume change and the like.
Further, be equipped with the baffle of dividing it into epicoele and cavity of resorption in the hot water storage tank, the baffle is the orifice plate, the epicoele with stator water jacket interbedded hot water export intercommunication, the cavity of resorption with stator water jacket interbedded cold water entry intercommunication, just the epicoele still be equipped with to the export of hot subscriber unit supply hot water, the cavity of resorption still is equipped with cold water supply mouth. If the heat storage water tank with the partition plate is used for storing heat, hot water is fed from the upper end of the heat storage water tank, water with low temperature flows out from the lower part, the water is separated by the partition plate in the middle, and if a user needs hot water, the hot water can be directly extracted from the partition plate and cold water can be supplemented below the partition plate.
Compared with the prior art, the utility model discloses a high-speed rotatory vortex heating system of wind energy drive has apparent technical advantage: by utilizing the magnetic eddy effect, a part of mechanical energy generated by the wind turbine is divided and directly converted into heat energy through the eddy heater, so that the feedwater in the stator water jacket interlayer is heated to generate hot water, and the rest of mechanical energy of the wind turbine can be used for driving power generation equipment, so that the wind turbine has a power generation link and can also heat the feedwater, and the efficiency and the economy of the wind turbine are improved.
Drawings
FIG. 1 is a schematic view of the transmission structure of the wind turbine and the vortex heat generator of the present invention;
FIG. 2 is a schematic structural view of a vortex heater according to the present invention;
fig. 3 is a schematic structural diagram of a phase change heat accumulator used as a heat accumulator in the present invention;
fig. 4 is a schematic structural diagram of the heat accumulator of the present invention adopting the heat storage water tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the wind-driven high-speed rotating vortex heating system of the present invention at least comprises a wind turbine, a vortex heater 17 and a heat accumulator. The wind turbine can adopt a horizontal shaft type wind turbine, as shown in fig. 1, the wind turbine mainly comprises a tower 25 and a cabin 21 arranged on the top of the tower 25 through a revolving body 26 and a headstock 27, a wind turbine is arranged at the front end of the cabin 21, the wind turbine consists of a hub 12 and blades 13, a speed regulating mechanism 11 is further arranged on the wind turbine, a low-speed output shaft 14 of the wind turbine is connected with an input end of a speed increasing gear box 29 through a low-speed shaft coupler 30, an output end of the speed increasing gear box 29 is connected with an input end of a main shaft 18 of a vortex heater 17 through a high-speed shaft coupler 16, an output end of the speed increasing gear box 29 is provided with a braking device 15, a tail end of the main shaft 18 of the vortex heater 17 is further connected with a generator 19 through a coupler, a part of electricity generated by the generator 19 is merged into a power grid through, the speed-increasing gearbox 29, the eddy-current heater 17, the generator 19, the storage battery 22 and other components are all arranged in the nacelle 21, and the control system 20 of the whole wind turbine is also arranged in the nacelle 21. It should be noted that the wind turbine may also be a vertical shaft wind turbine, which mainly includes a fixed tower, blades, a main shaft, a gear box, a control system, a generator, a permanent magnet eddy current heater, an inverter, a storage battery, and a brake system. Compared with the prior wind turbine, the utility model provides a wind turbine can also turn into the feedwater in heat energy in order to heat stator water jacket cover through drive vortex heater 17 and utilize the magnetic eddy effect with mechanical energy when having the electricity generation link, has improved wind turbine's efficiency and economic nature.
As shown in fig. 2, the vortex heater 17 of the present invention is a permanent magnet vortex heater, which comprises a main shaft 18, a cylindrical stator and a cylindrical permanent magnet rotor coaxially disposed in the inner cavity of the cylindrical stator. The cylindrical stator comprises a cylindrical stator inner wall 5, a cylindrical stator outer wall 4 coaxially sleeved on the periphery of the cylindrical stator inner wall 5 and top covers 2 arranged at two ends, a main shaft 18 is rotatably supported on the top covers 2 at two ends of the cylindrical stator through a bearing part 10, the cylindrical stator inner wall 5 and the cylindrical stator outer wall 4 are both made of metal, the cylindrical stator inner wall 5 is made of carbon steel material, the cylindrical stator outer wall 4 is made of silicon steel material, a space between the cylindrical stator inner wall 4 and the cylindrical stator outer wall 4 forms a closed stator water jacket interlayer through the top covers 2 at two ends, and the stator water jacket interlayer comprises a cold water inlet 8 and a hot water outlet 3. The columnar permanent magnet rotor comprises a columnar rotor iron core 7 and cylindrical permanent magnets 9 embedded on the periphery of the columnar rotor iron core 7, the permanent magnets 9 are uniformly distributed on the rotor iron core 7 along the axial direction, and the magnetic poles of the permanent magnets 9 are distributed in a staggered manner; the center of the columnar rotor core 7 is provided with a central through hole along the axis, the columnar permanent magnet rotor is coaxially sleeved on the main shaft 18 through the central through hole and is in transmission connection with the main shaft 18 through the clutch device 6, and when the columnar permanent magnet rotor rotates in the cylindrical stator, the electromagnetic eddy current generated between the columnar permanent magnet rotor and the cylindrical stator is converted into heat and stored in water flow in a water jacket interlayer of the stator.
It should be noted that, since the system needs to generate hot water with a rated water temperature, the rotation speed of the rotor should reach the rated rotation speed. If the system adopts a megawatt wind turbine, the rotating speed is low, the speed-up gear box 29 can adopt a transmission type with multistage transmission ratios such as 2-stage dead axle and 1-stage planetary transmission, 1-stage dead axle and 2-stage planetary transmission and the like; if a high-speed wind turbine is adopted, the rotating speed is high, and the speed-up gear box 29 can adopt 2-stage transmission types such as 1-stage dead axle and 1-stage planetary rotation, 2-stage planetary transmission and the like; the selection of the wind turbine and the transmission type can enable the rotating speed of the high-speed shaft of the speed increasing box to reach the rated rotating speed.
When the system is operated, the wind turbine converts wind energy into mechanical energy, drives the hub 12 to rotate, then drives the main shaft 18 of the eddy current heater 17 to rotate through the speed-increasing gear box 29, and controls the clutch of the permanent magnet rotor and the main shaft 18 by using the clutch device 6. In summer, the clutch device 6 is disconnected, so that the main shaft 18 and the permanent magnet rotor are separated, only the generator 19 is driven to generate electricity, one part of the generated electricity is merged into a power grid after passing through the inverter 24, and the other part of the generated electricity is stored in the storage battery 22 after passing through the controller 23. The power of the battery 22 is supplied to the controller 20, and the rotational speed and yaw of the wind turbine are regulated by controlling the governor mechanism 11 and the brake device 15.
Fig. 3 is a schematic structural diagram of the phase change heat accumulator used in the heat accumulator of the present invention. The phase change heat accumulator has the characteristics of high heat accumulation density and capability of keeping the output water temperature constant. The shell of the phase change heat accumulator is provided with a heat insulation material 32, the inner cavity of the phase change heat accumulator is provided with a phase change heat accumulation material and a heat exchange coil 37, the phase change heat accumulation material can be crystalline hydrated salt, for example, Ba (OH) 2.8H 2O can be adopted, and the phase change temperature is 78 ℃. The crystalline hydrated salt has the advantages of low price, high heat storage density, strong heat conductivity, small phase change volume change and the like. A hot water outlet of a stator water jacket interlayer A in the vortex heater 17 is communicated with a hot water inlet 31 of a heat exchange coil pipe 37 through a pipeline, a hot water outlet 35 of the heat exchange coil pipe 37 is divided into two paths, one path is communicated with a cold water inlet of the stator water jacket interlayer A after passing through a valve F-1, a radiator 33, a circulating water pump B, a valve F-2 and a valve F-3, and the other path is communicated with the cold water inlet of the stator water jacket interlayer A after passing through a domestic water interface 34, a tap water port 36 and the valve F-3. Due to the unstable wind speed and the condition that a user uses hot water, a temperature measuring element is arranged at the position of the valve F-3, and the flow of the water is properly adjusted according to the temperature of the return water, so that the temperature of the output water of the heater is constant.
In winter, the valve F-1, the valve F-2 and the valve F-3 are all opened. When the wind turbine drives the generator 19 to generate electricity, the clutch is connected to enable the main shaft 18 to drive the permanent magnet rotor to rotate at a high speed, the circulating water pump B sends return water into the stator water jacket interlayer A at a certain flow rate, the water flows through the inner wall of the stator to take away generated heat, heated hot water flows into the heat exchange coil 37 from the hot water inlet 31, the heat exchange coil 37 is externally made of a phase-change material, the hot water flows out from the hot water outlet 35, and on one hand, the hot water is sent into the radiator 33 through the valve F-3 to be used for heating of a user; on the other hand, hot water can be directly provided for the user through the domestic water interface 34, if the user consumes the hot water, the hot water can be fed into a heating water return pipeline through the tap water interface 36 to supply the consumed water source.
Fig. 4 is a schematic structural diagram of the heat accumulator of the present invention adopting the heat storage water tank. When the heat storage water tank with the partition plate 41 is adopted, hot water heated by the permanent magnet heater flows in from the water inlet 38 of the heat storage water tank, and cold water flows out from the water outlet 42 and is sent into the stator water jacket interlayer A by the circulating water pump B. A pipeline 39 is arranged above the heat storage water tank, and hot water can be conveyed to the radiator 33 from the valve F-1 for heating of users and living utilization of the users. A pipeline 40 is also arranged below the heat storage water tank and used for supplying a cold water source for the system to perform water circulation. If hot water is needed in summer, only the valve F-1 and the valve F-2 need to be closed. Because there is no water circulation for heating in summer, i.e. there is no stable and durable heat dissipation, in order to avoid the over-high temperature of the heating system, when the hot water is not used, the valve F-3 is closed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A wind energy driven high-speed rotating eddy current heating system comprises a wind machine, an eddy current heater and a heat accumulator and is characterized in that,
the eddy current heater at least comprises a main shaft, a cylindrical stator and a cylindrical permanent magnet rotor coaxially arranged in the inner cavity of the cylindrical stator, wherein,
the cylindrical stator comprises a cylindrical stator inner wall, a cylindrical stator outer wall and top covers, wherein the cylindrical stator outer wall is sleeved on the periphery of the cylindrical stator inner wall in a sleeved mode, the top covers are arranged at two ends of the cylindrical stator outer wall, the cylindrical stator inner wall and the cylindrical stator outer wall are both made of metal, and a closed stator water jacket interlayer is formed in a space between the cylindrical stator inner wall and the cylindrical stator outer wall through the top covers at the two ends of the cylindrical stator inner wall and the cylindrical stator outer wall;
the input end of the main shaft is in transmission connection with the wind turbine, and the main shaft is rotatably supported on top covers at two ends of the cylindrical stator;
the columnar permanent magnet rotor comprises a columnar rotor iron core and a cylindrical permanent magnet embedded at the periphery of the columnar rotor iron core, a central through hole is formed in the center of the columnar rotor iron core along the axis of the columnar rotor iron core, the columnar permanent magnet rotor is coaxially sleeved on the main shaft through the central through hole and is in transmission connection with the main shaft through a clutch device, and when the columnar permanent magnet rotor rotates in the cylindrical stator, electromagnetic eddy current generated between the columnar permanent magnet rotor and the cylindrical stator is converted into heat and stored in water flow in a water jacket interlayer of the stator;
the heat accumulator and a stator water jacket interlayer on the cylindrical stator form a water flow circulation loop through a water flow pipeline, and the water flow circulation loop is used for transmitting heat generated by the vortex flow heater to the heat accumulator through water flow.
2. The wind-driven high-speed rotating vortex heating system according to claim 1, wherein the wind turbine is a horizontal-axis wind turbine or a vertical-axis wind turbine, and a low-speed output shaft of the wind turbine is in transmission connection with the input end of the main shaft through a speed-increasing gearbox.
3. The wind-driven high-speed rotating eddy current heating system according to claim 2, wherein an input end of the speed-increasing gear box is connected with a low-speed output shaft of the wind turbine through a coupler, an output end of the speed-increasing gear box is connected with an input end of the main shaft through a coupler, and an output end of the speed-increasing gear box is provided with a braking device.
4. The wind-driven high-speed rotating vortex heating system according to claim 1, wherein the end of the main shaft is connected to a generator through a coupling, and the electricity generated by the generator is partly merged into the power grid through an inverter and partly stored in a storage battery through a controller.
5. The wind-driven high-speed rotating vortex heating system according to claim 1, wherein the permanent magnets are uniformly distributed on the rotor core in the axial direction, and the magnetic poles of the permanent magnets are distributed in a staggered manner; the cylindrical stator inner wall is made of carbon steel materials, and the cylindrical stator outer wall is made of silicon steel materials.
6. The wind-driven high-speed rotational vortex heating system of claim 1, wherein the heat accumulator is further in communication with a thermal consumer unit via a water flow line.
7. The wind-driven high-speed rotational vortex heating system of claim 6, wherein the heat accumulator is a phase change heat accumulator or a heat storage water tank.
8. The wind-driven high-speed rotational vortex heating system of claim 7, wherein the phase change heat storage material in the phase change heat accumulator is a crystalline hydrated salt.
9. The wind-driven high-speed rotating vortex heating system according to claim 7, wherein a partition plate dividing the heat storage water tank into an upper chamber and a lower chamber is arranged in the heat storage water tank, the partition plate is a hole plate, the upper chamber is communicated with a hot water outlet of the stator water jacket interlayer, the lower chamber is communicated with a cold water inlet of the stator water jacket interlayer, the upper chamber is further provided with an outlet supplying hot water to the hot user unit, and the lower chamber is further provided with a cold water supply port.
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| CN201920070788.1U CN209908662U (en) | 2019-01-16 | 2019-01-16 | Wind-driven high-speed rotating eddy heating system |
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| CN201920070788.1U CN209908662U (en) | 2019-01-16 | 2019-01-16 | Wind-driven high-speed rotating eddy heating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007769A (en) * | 2021-03-04 | 2021-06-22 | 武汉理工大学 | Seawater source heat pump heating system based on wind power magnetic eddy current |
| CN113028640A (en) * | 2021-03-11 | 2021-06-25 | 武汉理工大学 | Thermoelectric fan system and control method |
| CN113048539A (en) * | 2021-03-29 | 2021-06-29 | 武汉理工大学 | Seawater source heat pump heating device based on wind power magnetic eddy current and control method thereof |
-
2019
- 2019-01-16 CN CN201920070788.1U patent/CN209908662U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007769A (en) * | 2021-03-04 | 2021-06-22 | 武汉理工大学 | Seawater source heat pump heating system based on wind power magnetic eddy current |
| CN113028640A (en) * | 2021-03-11 | 2021-06-25 | 武汉理工大学 | Thermoelectric fan system and control method |
| CN113048539A (en) * | 2021-03-29 | 2021-06-29 | 武汉理工大学 | Seawater source heat pump heating device based on wind power magnetic eddy current and control method thereof |
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