CN202004467U - Thermoelectric energy storage grid electric power peak regulation system - Google Patents
Thermoelectric energy storage grid electric power peak regulation system Download PDFInfo
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- CN202004467U CN202004467U CN2011200190277U CN201120019027U CN202004467U CN 202004467 U CN202004467 U CN 202004467U CN 2011200190277 U CN2011200190277 U CN 2011200190277U CN 201120019027 U CN201120019027 U CN 201120019027U CN 202004467 U CN202004467 U CN 202004467U
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Abstract
The utility model relates to a thermoelectric energy storage grid electric power peak regulation system, which belongs to the technical field of power supply. The system comprises a heat pump, a hot water pump, a cold water pump, a hot water tank, a cold water tank and a thermoelectric generator, which the thermoelectric generator comprises a heating power generator and a cooling power generator which exchange heat with hot water and cold water respectively; a condenser and an evaporator of the heat pump are arranged in a first exchange tank and a second heat exchange tank respectively; the first heat exchange tank, the hot water tank, the hot water pump and the heating power generator are connected by a first circulating pipeline to form a hot water closed circulation loop; the second heat exchange tank, the cold water tank, the cold water pump and the cooling power generator are connected by a second circulating pipeline to form a cold water closed circulation loop; the circulating pipelines are provided with a first bypass and a second bypass at the heating power generator and the cooling power generator respectively; and motors of the heat pump and the water pumps are externally connected with commercial power or connected with the power output end of the thermoelectric generator respectively. The system converts residual grid electric energy into heat energy for storage by utilizing the heat pump, and converts the heat energy into electric energy by utilizing the thermoelectric generator and feeds the electric energy back to a power grid, thereby realizing the effective peak regulation of the power grid.
Description
Technical field
The utility model relates to a kind ofly will net the net electricity peak regulation system of electricity to be incorporated into the power networks with thermo-electric generation again after the thermal energy storage, belong to electric power system or fluid motor technical field.
Background technology
Electric energy in the existing electrical network can not store in electrical network, when peak of power consumption, generally is to exert oneself and many starts way that number or restriction load of organizing a performance is satisfied the demand with the increase generating set.And in every day during low power consumption (as after midnight), always close down some generating sets again and force down those and continue the exerting oneself of the unit of operation, until bottom line, to adapt to electricity consumption needs seldom.This generated output of regulating at any time is called the electric peak regulation of net to adapt to power load periodically variable behavior every day.
The means of the electric peak regulation of existing net mainly contain: Hydropower Unit load shedding peak regulation or shutdown; fuel oil (gas) unit load shedding peak regulation, coal-fired unit load shedding, start and stop peak regulation, few steam operation, sliding parameter operation peak regulation, nuclear power generating sets load shedding peak regulation; pumped storage power plant, or the like.These means more or less exist certain problem, and bigger to the equipment influence as fuel oil (gas) or coal-fired unit load shedding, the operation of nuclear power generating sets load shedding has increased security risk, and pumped storage power plant has relatively high expectations to the geographical position, or the like.
The utility model content
The technical problems to be solved in the utility model is, proposes a kind ofly will net the net electricity peak regulation system of electricity to be incorporated into the power networks with thermo-electric generation again after the thermal energy storage, thereby realizes the effectively electric peak regulation of net.
The utility model is that the technical scheme that solves the problems of the technologies described above proposition is: the electric peak regulation of a kind of temperature difference accumulation of energy net system, comprise heat pump, heat-exchanger pump, water supply pump, boiler, cold water storage cistern and thermal generator, described heat pump contains condenser, evaporator, compressor and expansion valve, described thermal generator contains respectively heating power device and the cold power device that carries out heat exchange with hot water and cold water from boiler and cold water storage cistern, described condenser and evaporator are arranged at respectively in first heat exchange box and second heat exchange box of sealing, described first heat exchange box, boiler, heat-exchanger pump and heating power device connect and compose hot water closed circulation loop by first circulation line, described second heat exchange box, cold water storage cistern, water supply pump and cold power device connect and compose cold water closed circulation loop by second circulation line, described first circulation line is provided with first bypass being positioned at heating power device place, described second circulation line is provided with second bypass being positioned at cold power device place, the external civil power of the drive motors of described compressor, the drive motors external civil power of difference of described water pump or the power output end of connection thermal generator.
The use of the utility model temperature difference accumulation of energy peak regulation system is:
(1) when the net electricity needed peak regulation (promptly the net electricity is unnecessary), unnecessary net electricity inserted native system, the compressor of heat pump, heat-exchanger pump and water supply pump work, and thermal generator is not worked, and first bypass and second bypass are opened; The working medium of heat pump (refrigerant) circulates under the compressor effect and finishes contrary Carnot cycle through evaporator, condenser and expansion valve, simultaneously under heat-exchanger pump and water supply pump drive respectively, hot water is condensed to heat up after device heats through first heat exchange box and is delivered to boiler, cold water is lowered the temperature after the evaporator heat release through second heat exchange box and is delivered to cold water storage cistern, the high-temperature-hot-water of boiler and the low-temperature cold water of cold water storage cistern are got back to first heat exchange box and second heat exchange box through first bypass and second bypass respectively, so move in circles; Like this, unnecessary net electricity just converts thermal energy storage in hot water and cold water.
(2) when peak of power consumption (i.e. net electricity not enough), heat pump quits work, and heat-exchanger pump and water supply pump still keep work, thermal generator startup work this moment, and first bypass and second bypass are closed; Under heat-exchanger pump and water supply pump drove respectively, the high-temperature-hot-water of boiler and the low-temperature cold water of cold water storage cistern passed through the heating power device and the cold power device of thermal generator respectively, and hot water and cold water form certain temperature difference and generates electricity and output to electrical network on thermal generator; Like this, the heat energy that is stored in hot water and the cold water converts the electric energy feedback grid again to.Can regulate water pump Control Circulation water yield size according to need for electricity, and then regulate the generated output size that outputs to electrical network.
(3) when electricity consumption just often, heat-exchanger pump and water supply pump also can quit work.
In the above-mentioned use, the acting of heat-exchanger pump and water supply pump mainly be overcome hot water and cold water carry in tube friction, so heat-exchanger pump and water supply pump power can be very little.
The beneficial effect of temperature difference accumulation of energy peak regulation of the present utility model system is: by hot water or cold water's closed circulation loop of heat pump and formation thereof, can convert unnecessary net electricity to thermal energy storage in hot water and cold water, can be stored in hot water by thermal generator again and become the electric energy feedback grid, thereby can carry out effective peak regulation electrical network with thermal power transfer in the cold water.
The one of perfect of technique scheme is: described thermal generator is to adopt semi-conductive thermal generator, and described heating power device and cold power device are respectively to make hot water and cold water flow through the hot water channel and the cold water channel at described semiconductor two ends respectively.
Perfect two of technique scheme is: described thermal generator comprises turbine, generator, hydraulic pump, gasifier and liquefier, described gasifier and liquefier are arranged at respectively in the 3rd heat exchange box and the 4th heat exchange box of sealing, the mechanical force output of described turbine is by the mechanical force input of transmission mechanism connecting generator, the air chamber of described turbine, hydraulic pump, gasifier and liquefier connect and compose working medium closed circulation loop by the 3rd circulation line, and the heating power device of described thermal generator and cold power device are respectively the 3rd heat exchange box and the 4th heat exchange box.
Further improving of technique scheme is: the heating power device of described first heat exchange box, boiler, heat-exchanger pump, thermal generator, first circulation line, second heat exchange box, cold water storage cistern, water supply pump, thermal generator cold power device, second circulation line, first bypass and second bypass be provided with thermal insulating warm-keeping layer, damp-proof layer and protective layer; Described reservoir and pond are provided with thermal insulating warm-keeping layer, damp-proof layer and protective layer.
Further improving again of technique scheme is: the drive motors of described compressor and water pump all is variable-frequency motors.
Further improving of technique scheme is: described turbine is a turbine, and described transmission mechanism is a gearbox.
Description of drawings
Is to be described further below in conjunction with accompanying drawing to temperature difference accumulation of energy net electricity peak regulation of the present utility model.
Fig. 1 is the structural representation of the utility model embodiment one temperature difference accumulation of energy net electricity peak regulation system.
Fig. 2 is the structural representation of the utility model embodiment two temperature difference accumulation of energy nets electricity peak regulation system.
Fig. 3 is one of structural representation of the utility model embodiment three temperature difference accumulation of energy nets electricity peak regulation system.
Fig. 4 be the utility model embodiment three temperature difference accumulation of energy nets electricity peak regulation system structural representation two.
Embodiment
Embodiment one
The temperature difference accumulation of energy net electricity peak regulation system of present embodiment comprises heat pump 1, heat-exchanger pump 4, water supply pump 5, boiler 6, cold water storage cistern 7 and thermal generator 2 as shown in Figure 1.Heat pump 1 contains condenser 8, evaporator 9, compressor 13 and expansion valve 3, and wherein condenser 8 and evaporator 9 are arranged at respectively in first heat exchange box 10 and second heat exchange box 11 of sealing.Thermal generator 2 contains respectively heating power device and the cold power device that carries out heat exchange with hot water and cold water from boiler and cold water storage cistern, the thermal generator 2 of present embodiment is to adopt semi-conductive thermal generator, and heating power device and cold power device are respectively to make hot water and cold water flow through the hot water channel and the cold water channel (not shown) at semiconductor two ends respectively.First heat exchange box 10, boiler 6, heat-exchanger pump 4 and heating power device connect and compose hot water closed circulation loop by first circulation line, second heat exchange box 11, cold water storage cistern 7, water supply pump 5 and cold power device connect and compose cold water closed circulation loop by second circulation line, first circulation line is provided with first bypass, 12, the second circulation lines and is provided with second bypass 16 being positioned at cold power device place being positioned at heating power device place.The power supply plan of the drive motors (not shown) of the drive motors 14 of present embodiment compressor 13 and heat-exchanger pump 4, water supply pump 5 is: 1) the drive motors 14 external civil powers of compressor 13; 2) during system start-up, all external civil power of the drive motors of heat-exchanger pump 4, water supply pump 5; 3) when thermal generator 2 goes out electricity, the power output end of the drive motors of heat-exchanger pump 4, water supply pump 5 external civil power of difference or connection thermal generator.
The drive motors of the drive motors of present embodiment compressor 13 and heat-exchanger pump 4, water supply pump 5 all adopts variable-frequency motor.
The cold power device of the heating power device of first heat exchange box 10 of present embodiment, boiler 6, heat-exchanger pump 4, thermal generator 3, first circulation line, second heat exchange box 11, cold water storage cistern 7, water supply pump 5, thermal generator 3, second circulation line, first bypass 12 and second bypass 16 are provided with thermal insulating warm-keeping layer, and add damp-proof layer, protective layer etc.
The use of the temperature difference accumulation of energy net electricity peak regulation system of present embodiment is seen before and is stated summary of the invention.
Embodiment two
The temperature difference accumulation of energy net of present embodiment electricity peak regulation system is perfect on embodiment two bases, as shown in Figure 2 different: thermal generator 2 comprises turbine 17, generator 18, hydraulic pump 19, gasifier 20 and liquefier 21.Gasifier 20 and liquefier 21 are arranged at respectively in the 3rd heat exchange box 22 and the 4th heat exchange box 23 of sealing.The mechanical force output of turbine 17 is by the mechanical force input of transmission mechanism connecting generator 18, the air chamber of turbine 17, hydraulic pump 19, gasifier 20 and liquefier 21 connect and compose working medium closed circulation loop by the 3rd pipeline, and the heating power device of thermal generator 3 and cold power device are respectively the 3rd heat exchange box 22 and the 4th heat exchange box 23.Turbine 17 is selected turbine for use, can certainly select other turbines for use.
Embodiment three
The temperature difference accumulation of energy net of present embodiment electricity peak regulation system is perfect on embodiment one and embodiment two bases, improving part is: temperature difference energy-storage system also comprises reservoir 24 and pond 25, reservoir 24 is serially connected with between the heating power device of first heat exchange box 10 in the hot water closed circulation loop and thermal generator 3, and pond 25 is serially connected with between the cold power device of second heat exchange box 11 in the cold water closed circulation loop and thermal generator 3.
The two kind situations of present embodiment after carrying out above-mentioned improving on embodiment one and embodiment two bases respectively as shown in Figure 3 and Figure 4.Reservoir 24 and pond 25 also are provided with thermal insulating warm-keeping layer, and add damp-proof layer, protective layer etc.
Like this, what the temperature difference accumulation of energy net electricity peak regulation system of present embodiment was different with aforementioned use is: the warm water of heat-exchanger pump 4 elder generations extraction reservoir 24 enters the condenser 8 of heat pump 2, becoming delivery after heat absorption assembles to boiler 6, fraction hot water in the boiler 6 enter the heating power device of thermal generator 3 under heat-exchanger pump 4 drives (for adopting semi-conductive thermal generator is its hot water channel, for the thermal generator that adopts turbine is its 3rd heat exchange box 22) or first bypass 12, be back to reservoir 24 then; The water in water supply pump 5 driving ponds 25 enters the evaporator 9 of heat pump 2 simultaneously, after heat release, become cold water and be transported to cold water storage cistern 7 gatherings, fraction cold water in the cold water storage cistern 7 enter the cold power device of thermal generator 3 under water supply pump 5 drives (for adopting semi-conductive thermal generator is its cold water channel, for the thermal generator that adopts turbine is its 4th heat exchange box 23) or first bypass 16, be back to the pond then.Like this, can further guarantee by the hot water and the temperature difference between the cold water of thermal generator constant.
The electric peak regulation of temperature difference accumulation of energy net of the present utility model system is not limited to the various embodiments described above, and all employings are equal to replaces the technical scheme that forms, and all drops on the protection range of the utility model requirement.
Claims (7)
1. temperature difference accumulation of energy net electricity peak regulation system, it is characterized in that: comprise heat pump, heat-exchanger pump, water supply pump, boiler, cold water storage cistern and thermal generator, described heat pump contains condenser, evaporator, compressor and expansion valve, described thermal generator contains respectively heating power device and the cold power device that carries out heat exchange with hot water and cold water from boiler and cold water storage cistern, described condenser and evaporator are arranged at respectively in first heat exchange box and second heat exchange box of sealing, described first heat exchange box, boiler, heat-exchanger pump and heating power device connect and compose hot water closed circulation loop by first circulation line, described second heat exchange box, cold water storage cistern, water supply pump and cold power device connect and compose cold water closed circulation loop by second circulation line, described first circulation line is provided with first bypass being positioned at heating power device place, described second circulation line is provided with second bypass being positioned at cold power device place, the external civil power of the drive motors of described compressor, the drive motors external civil power of difference of described water pump or the power output end of connection thermal generator.
2. temperature difference accumulation of energy net electricity peak regulation system according to claim 1, it is characterized in that: described temperature difference energy-storage system also comprises reservoir and pond, described reservoir is serially connected with between the heating power device of first heat exchange box in the hot water closed circulation loop and thermal generator, and described pond is serially connected with between the cold power device of second heat exchange box in the cold water closed circulation loop and thermal generator.
3. as temperature difference accumulation of energy net electricity peak regulation system as described in the claim 2, it is characterized in that: described thermal generator is to adopt semi-conductive thermal generator, and described heating power device and cold power device are respectively to make hot water and cold water flow through the hot water channel and the cold water channel at described semiconductor two ends respectively.
4. as temperature difference accumulation of energy net electricity peak regulation system as described in the claim 2, it is characterized in that: described thermal generator comprises turbine, generator, hydraulic pump, gasifier and liquefier, described gasifier and liquefier are arranged at respectively in the 3rd heat exchange box and the 4th heat exchange box of sealing, the mechanical force output of described turbine is by the mechanical force input of transmission mechanism connecting generator, the air chamber of described turbine, hydraulic pump, gasifier and liquefier connect and compose working medium closed circulation loop by the 3rd circulation line, and the heating power device of described thermal generator and cold power device are respectively the 3rd heat exchange box and the 4th heat exchange box.
5. as temperature difference accumulation of energy net electricity peak regulation system as described in claim 3 or 4, it is characterized in that: the heating power device of described first heat exchange box, boiler, heat-exchanger pump, thermal generator, first circulation line, second heat exchange box, cold water storage cistern, water supply pump, thermal generator cold power device, second circulation line, first bypass and second bypass be provided with thermal insulating warm-keeping layer, damp-proof layer and protective layer; Described reservoir and pond are provided with thermal insulating warm-keeping layer, damp-proof layer and protective layer.
6. as temperature difference accumulation of energy net electricity peak regulation system as described in claim 3 or 4, it is characterized in that: the drive motors of described compressor and water pump all is variable-frequency motors.
7. as temperature difference accumulation of energy net electricity peak regulation system as described in the claim 4, it is characterized in that: described turbine is a turbine, and described transmission mechanism is a gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200190277U CN202004467U (en) | 2011-01-20 | 2011-01-20 | Thermoelectric energy storage grid electric power peak regulation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200190277U CN202004467U (en) | 2011-01-20 | 2011-01-20 | Thermoelectric energy storage grid electric power peak regulation system |
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| CN202004467U true CN202004467U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200190277U Expired - Lifetime CN202004467U (en) | 2011-01-20 | 2011-01-20 | Thermoelectric energy storage grid electric power peak regulation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122825A (en) * | 2011-01-20 | 2011-07-13 | 顾为东 | Temperature difference energy storage grid electricity peak shaving system |
| CN108413538A (en) * | 2018-05-29 | 2018-08-17 | 珠海格力电器股份有限公司 | A kind of air-conditioning system with generating function |
| CN114938009A (en) * | 2022-06-24 | 2022-08-23 | 国网安徽省电力有限公司淮北供电公司 | Heat accumulation system based on power grid peak shaving |
-
2011
- 2011-01-20 CN CN2011200190277U patent/CN202004467U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122825A (en) * | 2011-01-20 | 2011-07-13 | 顾为东 | Temperature difference energy storage grid electricity peak shaving system |
| CN108413538A (en) * | 2018-05-29 | 2018-08-17 | 珠海格力电器股份有限公司 | A kind of air-conditioning system with generating function |
| CN114938009A (en) * | 2022-06-24 | 2022-08-23 | 国网安徽省电力有限公司淮北供电公司 | Heat accumulation system based on power grid peak shaving |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111005 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |