CN107606677A - A kind of supercritical carbon dioxide heating system for distributed energy peak load shifting - Google Patents
A kind of supercritical carbon dioxide heating system for distributed energy peak load shifting Download PDFInfo
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- CN107606677A CN107606677A CN201710937046.XA CN201710937046A CN107606677A CN 107606677 A CN107606677 A CN 107606677A CN 201710937046 A CN201710937046 A CN 201710937046A CN 107606677 A CN107606677 A CN 107606677A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 6
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 6
- 238000009825 accumulation Methods 0.000 claims abstract description 11
- 238000005338 heat storage Methods 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 12
- 230000001172 regenerating effect Effects 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 5
- 239000003507 refrigerant Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a kind of supercritical carbon dioxide heating system for distributed energy peak load shifting, including heat pump plus vortex guard system, heat accumulation and heating system.The system balances wind energy by heat pump and heat reservoir, dump energy caused by the solar energy distributed energy.The use of vortex tube can alleviate requirement of the system for Alternative Refrigerant Compressors pressure ratio significantly in the system, reduce cost, improve the practicality of system.The present invention is more common, and heat pump heat distribution system has a clear superiority, and can greatly increase the practical capacity of power network consumption regenerative resource, play a part of peak load shifting, is contributed to reduce pollution environmental protection.
Description
Technical field
The invention belongs to distributed energy storage heating field, and in particular to a kind of to face for the super of distributed energy peak load shifting
Boundary's carbon dioxide heating system.
Background technology
Fossil energy is exhausted at last, while as environmental protection and pollution problem are increasingly subject to the attention of people, in recent decades,
The regenerative resources such as wind energy, solar energy, tide energy are swift and violent as clean energy resource development, and proportion is increasingly in world's energy resource structure
It is high.The installed capacity increase of China's regenerative resource is swift and violent.But the regenerative resource such as wind energy, solar energy has discontinuously, no
Stable, uncontrollable Unsteady characteristics, the in addition dislocation between the high-quality wind in China, light resource distribution and power load gravity centre distribution
Contradiction, cause to abandon wind, abandon the problems such as light all the time along with the development of China's wind-powered electricity generation, photovoltaic industry, produce huge energy waste.
Therefore, thermal power plant needs to undertake the responsibility of peak regulation, it is often necessary to variable load operation.Thermal power plant is under underrun
It is less efficient, cause the increase of net coal consumption rate and pollutant emission.
The content of the invention
It is an object of the invention to provide a kind of excessive amount of electrical energy of the output when distributed energy is in generating peak period to lead to
Cross power network and be transported to population accumulation area or industrial area, and store, network load peak time or needs when
Time discharges heat, meets the overcritical dioxy for distributed energy peak load shifting of the heat demand of life and production
Change carbon heating system.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：Including heat pump plus vortex guard system and heat accumulation and confession
Hot systems；
Described heat pump adds vortex guard system to include compressor and the first heat storage and exchange being connected with the outlet of compressor
The working medium side entrance of device, the first heat storage exchanger working medium side outlet are connected with the entrance of vortex tube, the high temperature side outlet of vortex tube
It is connected with the second heat storage exchanger working medium side entrance, the low temperature side outlet of vortex tube is connected with the entrance of heater, and heater goes out
The fluid of mouth is connected after converging with the fluid of the second heat storage exchanger working medium side outlet with suction port of compressor；
Described heat accumulation and heating system include one end biography with the first heat storage exchanger and the second heat storage exchanger respectively
The connected low-temperature storage tank of hot working fluid side low-temperature end, the other end of low-temperature storage tank are connected with Heat supply and heat exchange device working medium side low-temperature end, high
Heat-transfer working medium side temperature end of the one end of warm storage tank respectively with the first heat storage exchanger and the second heat storage exchanger is connected, high temperature storage
The other end of tank is connected with Heat supply and heat exchange device working medium side temperature end.
Due to being provided with high and low temperature storage tank and Heat supply and heat exchange system in the system of the present invention, when distributed energy is in hair
The excessive amount of electrical energy of output is transported to population accumulation area or industrial area by power network during electric peak period, and stores, in power network
The peak time of load or the when of needs, discharge heat, meet the heat demand of life and production, on the one hand keep away
Exempt to abandon wind, abandoned the waste such as light, and alleviated the burden of peak regulation of power plant significantly, on the other hand, realized replacement and dissipate and burn coal, combustion
The energy-consuming mode of oil, improves the stability of China's network load and the utilization rate of regenerative resource, and control consumption of coal is total
Amount, Air Pollutant Emission is reduced, is improved the ecological environment.
The invention has the advantages that：It is small that electric heating energy-storage systems of distributed heating systems system can substitute conventional coal heating
Boiler, realize that the electric energy of energy source terminal consumption substitutes, reduce the discharge of pollutant and the waste of the energy.Electric heating energy-storage is distributed to be supplied
A large amount of construction of hot systems, can increase the ability of power network consumption regenerative resource, and wind, the phenomenon abandoned light, abandon water are abandoned in reduction.Electricity
Hot stored energy distribution formula heating system can be run in the low ebb period of network load, meet the heat supply need of network load peak time
Ask, play a part of peak load shifting, stable power network.
For simple electric boiler, the peak time that generates electricity superfluous electric energy is not only converted to heat energy by the present invention
Utilize, also absorb heat in environment, add energy utilization efficiency, reduce power consumption.
For simple heat pump heat distribution system, present invention incorporates vortex tube.The original of conventional heat pump system heating
Reason is to be compressed acting to low-temp low-pressure working medium by compressor to improve Temperature of Working merely, passes through to throttle again after heat supply and drops
Pressure obtains the temperature less than environment, and heat is absorbed from environment.In order to obtain the temperature difference met using needs, pressure is often required that
Contracting machine has larger compression ratio, is otherwise unable to reach the heat supply temperature of needs, or can not be obtained by throttling less than environment
Temperature, to realize the heat that needs are drawn from environment.High requirement so is proposed for Compressor Manufacturing, is improved into
This, also limit use range.And the use of vortex tube can alleviate problem above significantly.Vortex tube can be by certain pressure
Fluid is naturally divided into cold and hot two fluids, realizes the separation of temperature and heat, rather than is reduced by throttle effect merely
Temperature.So by the working medium after compressor boost and heat supply, by can not only be obtained less than environment temperature after vortex tube
Cryogenic fluid, high temperature refrigerant can also be obtained again and continues heat supply, this partial heat is drawn from cryogenic fluid, does not consume electricity
Energy.Vortex tube is static equipment, and cost is low, and such system can reduce the demand for compressor pressure ratio, and cost is lower, is improved real
The property used.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein, 1 it is compressor, 2 be the first heat storage exchanger, 3 be vortex tube, 4 be the second heat storage exchanger, 5 is heating
Device 6 is low-temperature storage tank, 7 be high temperature storage tank, 8 be Heat supply and heat exchange device.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, a kind of supercritical carbon dioxide heat supply system for distributed energy peak load shifting of the present invention
System, including heat pump plus vortex guard system, heat accumulation and heating system.Heat pump adds vortex guard system to be changed including compressor 1, the first heat accumulation
Hot device 2, vortex tube 3, the second heat storage exchanger 4 and heater 5, the outlet of compressor 1 and the working medium side entrance of the first heat storage exchanger 2
Connection, the working medium side outlet of the first heat storage exchanger 2 are connected with the entrance of vortex tube 3, the high temperature side outlet of vortex tube 3 and second
The working medium side entrance of heat storage exchanger 4 is connected, and the low temperature side outlet of vortex tube 3 is connected with the entrance of heater 5, and heater 5 exports
Fluid and the fluid of the working medium side outlet of the second heat storage exchanger 4 converge after be connected with the entrance of compressor 1.
Heat accumulation and heating system are made up of low-temperature storage tank 6, high temperature storage tank 7 and Heat supply and heat exchange device 8, one end of low-temperature storage tank 6
The heat-transfer working medium side low-temperature end with the first heat storage exchanger 2 and the second heat storage exchanger 4 is connected respectively, low-temperature storage tank 6 it is another
End is connected with the working medium side low-temperature end of Heat supply and heat exchange device 8, and one end of high temperature storage tank 7 is stored up with the first heat storage exchanger 2 and second respectively
The heat-transfer working medium side temperature end of heat exchanger 4 is connected, the other end and the working medium side temperature end phase of Heat supply and heat exchange device 8 of high temperature storage tank 7
Even.
The present invention specific work process be：
When wind energy, solar energy, which generate dump energy power network, to be not easy to balance, using this part electrical energy drive motor, motor
The compressor operation in heat pump is driven, working medium is pressurizeed, the Temperature of Working after boosting also raises, and the working medium of HTHP is entered
Enter the first heat storage exchanger 2 and transfer heat to heat transfer medium, the working medium of the first heat storage exchanger 2 outlet enters vortex tube 3, whirlpool
Working medium is naturally divided into two bursts of working medium of high temperature and low temperature by flow tube 3, and high temperature refrigerant enters the second heat storage exchanger 4 and continues heat supply,
The heat that cryogenic fluid enters in the absorption environment of heater 5, changes the working medium side outlet of heat storage exchanger 4 from second and heater 5 goes out
The working medium of mouth outflow is again introduced into compressor 1 after converging, and completes whole circulation.When needing to during user's heat supply, high temperature heat transfer work
Matter enters Heat supply and heat exchange device 8 by high temperature storage tank 7, and low-temperature storage tank 7 is entered back into after heat supply.
Claims (1)
1. a kind of supercritical carbon dioxide heating system for distributed energy peak load shifting, it is characterised in that including heat pump
Add vortex guard system and heat accumulation and heating system；
Described heat pump adds vortex guard system to include compressor (1) and changed with the first heat accumulation that the outlet of compressor (1) is connected
The working medium side entrance of hot device (2), the first heat storage exchanger (2) working medium side outlet are connected with the entrance of vortex tube (3), vortex tube
(3) high temperature side outlet is connected with the second heat storage exchanger (4) working medium side entrance, low temperature side outlet and the heating of vortex tube (3)
The entrance of device (5) is connected, after the fluid and the fluid of the second heat storage exchanger (4) working medium side outlet that heater (5) exports converge
It is connected with compressor (1) entrance；
Described heat accumulation and heating system include one end respectively with the first heat storage exchanger (2) and the second heat storage exchanger (4)
The connected low-temperature storage tank (6) of heat-transfer working medium side low-temperature end, the other end of low-temperature storage tank (6) are low with Heat supply and heat exchange device (8) working medium side
Warm end is connected, one end of high temperature storage tank (7) heat transfer work with the first heat storage exchanger (2) and the second heat storage exchanger (4) respectively
Matter side temperature end is connected, and the other end of high temperature storage tank (7) is connected with Heat supply and heat exchange device (8) working medium side temperature end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937046.XA CN107606677A (en) | 2017-10-10 | 2017-10-10 | A kind of supercritical carbon dioxide heating system for distributed energy peak load shifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937046.XA CN107606677A (en) | 2017-10-10 | 2017-10-10 | A kind of supercritical carbon dioxide heating system for distributed energy peak load shifting |
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| CN107606677A true CN107606677A (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710937046.XA Pending CN107606677A (en) | 2017-10-10 | 2017-10-10 | A kind of supercritical carbon dioxide heating system for distributed energy peak load shifting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108765199A (en) * | 2018-06-06 | 2018-11-06 | 华电电力科学研究院有限公司 | A kind of active efficient and environment-friendly type distributed energy resource system and operation method |
| CN111256193A (en) * | 2020-03-17 | 2020-06-09 | 中国华能集团清洁能源技术研究院有限公司 | Energy storage device for heating boiler tail flue gas and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287949A (en) * | 2011-06-14 | 2011-12-21 | 浙江大学 | Self-cascade system with vortex tube |
| CN104457027A (en) * | 2014-12-02 | 2015-03-25 | 苟仲武 | Improved compression heat pump working method and device |
| CN105300079A (en) * | 2015-11-20 | 2016-02-03 | 浙江大学 | Dehumidifying device with vortex tube |
| CN106322485A (en) * | 2016-09-30 | 2017-01-11 | 西安热工研究院有限公司 | Thermoelectricity energy storage distributed heat supply system |
| CN207317057U (en) * | 2017-10-10 | 2018-05-04 | 华能国际电力股份有限公司 | A kind of supercritical carbon dioxide heating system for distributed energy peak load shifting |
-
2017
- 2017-10-10 CN CN201710937046.XA patent/CN107606677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287949A (en) * | 2011-06-14 | 2011-12-21 | 浙江大学 | Self-cascade system with vortex tube |
| CN104457027A (en) * | 2014-12-02 | 2015-03-25 | 苟仲武 | Improved compression heat pump working method and device |
| CN105300079A (en) * | 2015-11-20 | 2016-02-03 | 浙江大学 | Dehumidifying device with vortex tube |
| CN106322485A (en) * | 2016-09-30 | 2017-01-11 | 西安热工研究院有限公司 | Thermoelectricity energy storage distributed heat supply system |
| CN207317057U (en) * | 2017-10-10 | 2018-05-04 | 华能国际电力股份有限公司 | A kind of supercritical carbon dioxide heating system for distributed energy peak load shifting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108765199A (en) * | 2018-06-06 | 2018-11-06 | 华电电力科学研究院有限公司 | A kind of active efficient and environment-friendly type distributed energy resource system and operation method |
| CN108765199B (en) * | 2018-06-06 | 2023-08-04 | 华电电力科学研究院有限公司 | Distributed energy system and operation method |
| CN111256193A (en) * | 2020-03-17 | 2020-06-09 | 中国华能集团清洁能源技术研究院有限公司 | Energy storage device for heating boiler tail flue gas and operation method thereof |
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Application publication date: 20180119 |
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