CN207317057U - 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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- CN207317057U CN207317057U CN201721300245.1U CN201721300245U CN207317057U CN 207317057 U CN207317057 U CN 207317057U CN 201721300245 U CN201721300245 U CN 201721300245U CN 207317057 U CN207317057 U CN 207317057U
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Abstract
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 by heat pump and heat reservoir balance wind energy, the solar energy distributed energy produce dump 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 more common heat pump heat distribution system of the utility model has a clear superiority, and can greatly increase the practical capacity of power grid consumption regenerative resource, play the role of peak load shifting, contributes to reduce pollution environmental protection.
Description
Technical field
The utility model belongs to distributed energy storage heating field, and in particular to a kind of for distributed energy peak load shifting
Supercritical 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, causes to abandon wind, abandons the problems such as light all the time with the development of China's wind-powered electricity generation, photovoltaic industry, produce huge energy waste.
For this reason, 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
The purpose of this utility model is to provide a kind of excessive electricity of the output when distributed energy is in power generation peak period
Population accumulation area or industrial area can be transported to by power grid, and is stored, peak time or needs in network load
When heat is discharged, meet life and production heat demand be used for distributed energy peak load shifting it is overcritical
Carbon dioxide heating system.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：Including heat pump plus vortex guard system and heat accumulation
And heating system；
The 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；
The heat accumulation and heating system include one end biography with the first heat storage exchanger and the second heat storage exchanger respectively
The low-temperature storage tank that hot working fluid side low-temperature end is connected, 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 utility model, at distributed energy
In generate electricity peak period when output excessive amount of electrical energy population accumulation area or industrial area are transported to by power grid, and store,
The peak time of network load or the when of needs, discharge heat, meet the heat demand of life and production, a side
Face avoids and abandons wind, abandons the waste such as light, and alleviates the burden of peak regulation of power plant significantly, on the other hand, realizes replacement and dissipates and burn
The energy-consuming mode of coal, fuel oil, improves the stability of China's network load and the utilization rate of regenerative resource, and control coal disappears
Take total amount, reduce Air Pollutant Emission, improve the ecological environment.
The utility model has the advantages that：Electric heating energy-storage systems of distributed heating systems system can substitute conventional coal-fired confession
Warm arcola, realizes that the electric energy of energy source terminal consumption substitutes, reduces the discharge of pollutant and the waste of the energy.Electric heating energy-storage is distributed
A large amount of construction of formula heating system, can increase the ability of power grid consumption regenerative resource, and reduction abandons wind, abandons light, abandons showing for water
As.Electric heating energy-storage systems of distributed heating systems system can be run in the low ebb period of network load, meet network load peak time
Heat demand, plays the role of peak load shifting, stablizes power grid.
For simple electric boiler, the utility model not only has the electric energy by the peak time surplus that generates electricity to be converted to
Heat energy utilization, also absorbs heat in environment, adds energy utilization efficiency, reduce power consumption.
For simple heat pump heat distribution system, the utility model combines vortex tube.Conventional heat pump system heats
Principle be that acting is compressed to low-temp low-pressure working medium to improve Temperature of Working by compressor merely, pass through section after heat supply again
Stream decompression obtains the temperature less than environment, and heat is absorbed from environment.In order to obtain the temperature difference met using needs, often
Ask compressor to have larger compression ratio, be otherwise unable to reach the heat supply temperature of needs, or ring can not be less than by throttling to obtain
The temperature in border, to realize the heat that needs are drawn from environment.High requirement so is proposed for Compressor Manufacturing, is improved
Cost, also limit use scope.And the use of vortex tube can alleviate problem above significantly.Vortex tube can be by certain pressure
Fluid be naturally divided into cold and hot two fluids, realize the separation of temperature and heat, rather than dropped by throttle effect merely
Low 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, can also obtain again high temperature refrigerant continue heat supply, this partial heat i.e. drawn from cryogenic fluid, do not consume
Electric 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
Practicality.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
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 utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, a kind of supercritical carbon dioxide for distributed energy peak load shifting described in the utility model supplies
Hot systems, including heat pump plus vortex guard system, heat accumulation and heating system.Heat pump adds vortex guard system to be stored up including compressor 1, first
Heat exchanger 2, vortex tube 3, the second heat storage exchanger 4 and heater 5, the outlet of compressor 1 and 2 working medium side of the first heat storage exchanger
Entrance connects, and the working medium side outlet of the first heat storage exchanger 2 is connected with the entrance of vortex tube 3, the high temperature side outlet of vortex tube 3 and
Second heat storage exchanger, 4 working medium side entrance is connected, and the low temperature side outlet of vortex tube 3 is connected with the entrance of heater 5, heater 5
The fluid of outlet is connected after converging with the fluid of 4 working medium side outlet of the second heat storage exchanger with 1 entrance of compressor.
Heat accumulation and heating system are made 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 8 working medium side low-temperature end of Heat supply and heat exchange device, 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 8 working medium side temperature end phase of Heat supply and heat exchange device of high temperature storage tank 7
Even.
The specific work process of the utility model is：
When wind energy, solar energy, which generate dump energy power grid, to be not easy to balance, using this part electrical energy drive motor, motor
Drive the compressor operation in heat pump system, working medium pressurizeed, the Temperature of Working after boosting also raises, the working medium of high temperature and pressure into
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,
Cryogenic fluid enters the heat in the absorption environment of heater 5, changes 4 working medium side outlet of heat storage exchanger 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；
The 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；
The heat accumulation and heating system include one end respectively with the first heat storage exchanger (2) and the second heat storage exchanger (4)
The low-temperature storage tank (6) that heat-transfer working medium side low-temperature end is connected, 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 |
|---|---|---|---|
| CN201721300245.1U CN207317057U (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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721300245.1U CN207317057U (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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| CN207317057U true CN207317057U (en) | 2018-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606677A (en) * | 2017-10-10 | 2018-01-19 | 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 |
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2017
- 2017-10-10 CN CN201721300245.1U patent/CN207317057U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606677A (en) * | 2017-10-10 | 2018-01-19 | 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 |
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