CN213747113U - Zero-carbon comprehensive energy system for park - Google Patents
Zero-carbon comprehensive energy system for park Download PDFInfo
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- CN213747113U CN213747113U CN202022697998.9U CN202022697998U CN213747113U CN 213747113 U CN213747113 U CN 213747113U CN 202022697998 U CN202022697998 U CN 202022697998U CN 213747113 U CN213747113 U CN 213747113U
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The utility model relates to a zero carbon comprehensive energy system in garden, including refrigerating system, heating system and cold and hot two hold system, refrigerating system and cold and hot two hold system's cold water output is used for being connected with user load equipment, and refrigerating system's cold water output and cold and hot two hold system's cold water input are connected, heating system and cold and hot two hold system's hot water output is used for being connected with user load equipment, and heating system's hot water output and cold and hot two hold system's hot water input are connected, the utility model discloses a comprehensive energy system equipment investment is few, and rate of equipment utilization is high.
Description
Technical Field
The utility model relates to an energy system technology field, concretely relates to zero carbon energy system is synthesized in garden.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the increasing prominence of energy and environmental problems, how to improve the energy utilization efficiency, reduce the energy consumption cost and reduce the environmental impact caused by the energy consumption process has become an important issue in the energy field.
For the energy mode of single energy article class, the energy demand in can the overall planning garden by comprehensive energy system mode, realize the collaborative planning of multiple energy demands such as garden cooling heating and power, broken the traditional mode that different energy varieties plan alone, design alone, operate alone, provide comprehensive energy integration solution, have energy comprehensive utilization efficiency height, can promote renewable energy and consume on the spot and satisfy advantages such as diversified energy demand.
The inventor finds that the energy supply system without the energy storage device is often overlarge in equipment type selection due to the maximum load required for meeting the energy demand of users, so that the investment is increased, and the equipment runs at partial load for a long time and is difficult to realize economic operation. The energy storage device can realize peak clipping and valley filling in a comprehensive energy system, and has been applied to a plurality of projects. However, the inventor finds that the energy storage device used in the existing comprehensive energy system generally only has a single function of cold storage or heat storage, and two sets of energy storage devices are required for users with both cold demand and heat demand, so that the investment is overlarge, and equipment is idle for most of time except for cold supply season or heat supply season, and the utilization rate is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned prior art, provide a zero carbon comprehensive energy system in garden, reduced investment cost in earlier stage, improved rate of equipment utilization, increased the flexibility of system operation.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
in a first aspect, the embodiment of the utility model provides a zero carbon comprehensive energy system in garden, including refrigerating system, heating system and cold and hot two hold system, refrigerating system and cold and hot two hold system's cold water output is used for being connected with user load equipment, and refrigerating system's cold water output and cold and hot two hold system's cold water input are connected, heating system and cold and hot two hold system's hot water output be used for being connected with user load equipment, heating system's hot water output and cold and hot two hold system's hot water input are connected.
Further, the refrigerating system comprises a water-cooled cold water system and a sewage source heat pump system.
Further, the water-cooled water chilling system comprises a plurality of water-cooled water chilling units.
Furthermore, the water-cooled water chilling unit adopts an electric water-cooled water chilling unit.
Furthermore, the heating system comprises a sewage source heat pump system, an air source heat pump system and a boiler system.
Further, the air source heat pump system comprises a plurality of air source heat pump units.
Further, the boiler system includes a plurality of boilers.
Further, the boiler adopts an electric boiler.
Furthermore, the sewage source heat pump system comprises a plurality of sewage source heat pump units.
Further, the cold and hot dual storage system includes a plurality of cold and hot dual storage devices.
Above-mentioned the utility model discloses an embodiment's beneficial effect as follows:
1. the system of the utility model is provided with a cold-hot double-storage system, and the investment is lower than that of the earlier stage of two single energy storage devices; the excessive capacity quota of the unit caused by meeting the peak load is reduced, the unit model selection is reduced, and the early equipment investment is reduced; the valley electricity is utilized to store cold and heat, the peak electricity price and the ordinary electricity price are released according to the load demand, the service time of the refrigerating machine and the heat pump is shortened when the electricity price is high, the low-cost energy accumulated when the electricity price is low is used to meet the load demand of a user, and the operation cost is effectively reduced.
2. The utility model discloses a system, electric water-cooling type cooling water set, sewage source heat pump set, air source heat pump set, electric boiler are the consumer, have realized the high-efficient utilization of electric energy, do not produce pollutants such as smoke and dust, carbon dioxide, nitrogen oxide in the operation process, accomplish zero carbon and discharge, do not influence project environmental quality, avoid environmental pollution.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
the system comprises a cold and hot storage device 1, an electric water-cooling water chilling unit 2, an air source heat pump unit 3, an electric boiler 4, a sewage source heat pump unit 5 and a user load device 6.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In this embodiment, "cold water" and "hot water" are only relative to the magnitude of the temperature, and the temperature of the hot water is higher than that of the cold water, and the specific values of the temperatures are not limited.
As introduced by the background art, the prior comprehensive energy system has large investment in the early stage and low equipment utilization rate, and the application provides a zero-carbon comprehensive energy system for a park aiming at the problems.
In example 1, which is an exemplary embodiment of the present application, a park zero-carbon integrated energy system includes a refrigeration system, a heating system, and a cold and hot dual storage system, as shown in fig. 1.
The cold and hot double-storage system is composed of a plurality of cold and hot double-storage devices 1, the cold and hot double-storage devices adopt the existing cold and hot double-storage devices, the cold and hot double-storage devices use water as a carrier and use a water energy storage tank as energy storage equipment. The main equipment of the system comprises: cold and hot double-storage energy storage tank, cold accumulation/heat release pump, cold release/heat accumulation pump, electric switching valve, etc. In the cold supply season, cold is directly supplied in the daytime, and refrigeration equipment is used for cold accumulation at night when the electricity is at the valley; in the heating season, the heat is directly supplied in the daytime, and in the night valley power, the heating equipment is used for storing heat, and the specific structure of the heating equipment is not described herein.
And the cold water output end and the hot water output end of the cold and hot double-storage device can be connected with the user load equipment 6, so that the cold supply or the heat supply to the user load equipment is realized.
The refrigerating system comprises a water-cooled cold water system and a sewage source heat pump system.
The water-cooled cooling water system comprises a plurality of electric water cooling type cooling water units 2, and the electric water cooling type cooling water units adopt the existing equipment can, include: cooling tower, electric refrigeration cooling water set, cooling water circulating pump, cold water circulating pump etc. its cold water output can be connected with user load equipment, carries out the cooling to user load equipment, and its cold water output still is connected with the cold water input of cold and hot two storage device simultaneously, can carry out the cold-storage with cold water input cold and hot two storage device.
The heating system comprises a sewage source heat pump system, an air source heat pump system and a boiler system.
The air source heat pump system comprises a plurality of air source heat pump units 3, the air source heat pump units adopt the existing equipment can, still include the cold water circulating pump, air source heat pump units's hot water output can be connected with user load equipment, supplies heat to user load equipment, and its hot water output still is connected with the hot water input of cold and hot double storage device, can carry out the heat accumulation with hot water input cold and hot double storage device.
The boiler system comprises a plurality of boilers, in the embodiment, the boiler adopts an electric boiler 4, a hot water output end of the boiler can be connected with user load equipment to supply heat to the user load equipment, and a hot water output end of the boiler is also connected with a hot water input end of a cold and hot double-storage device to input hot water into the cold and hot double-storage device to store heat.
The sewage source heat pump system comprises a plurality of sewage source heat pump units 5, and the sewage source heat pump units adopt the existing equipment, and comprise: the water-cooling double-storage device comprises a reclaimed water lifting pump, a comprehensive water treatment device, a reclaimed water-intermediate water heat exchanger, an intermediate water circulating pump, a sewage source heat pump unit, a cold water circulating pump and the like, and can supply cold and heat, wherein both a cold water output end and a hot water output end of the reclaimed water-intermediate water heat exchanger can be connected with user load equipment to supply cold and heat to the user load equipment, and the cold water output end and the hot water output end of the reclaimed water-intermediate water heat exchanger are respectively connected with a cold water input end and a hot water input end of the cold-hot double-storage device to realize cold and heat storage.
The electric water-cooling type water chilling unit, the sewage source heat pump unit and the cold and heat double-storage device are used in cold supply seasons, the household load equipment is directly cooled, and during the night valley electricity, the electric water-cooling type water chilling unit and the sewage source heat pump unit cool the cold and heat double-storage device.
In the heating season, the air source heat pump unit, the sewage source heat pump unit, the electric boiler and the cold and hot double-storage device are used for directly supplying heat in the daytime, and during the night valley electricity, the air source heat pump unit, the sewage source heat pump unit and the electric boiler store heat for the cold and hot double-storage device.
And (3) operating a cold season system: 1. the cold accumulation process comprises the following steps: the electricity price is lower at the time of the cooling valley electricity, and the refrigerating system allowance is utilized for cold accumulation. The refrigeration host operates in a cold accumulation working condition, and cold water is output by the evaporator and enters the lower water distributor through the lower interface of the energy storage tank. And cold water on the upper part of the energy storage tank is pressurized by the cold storage pump, is conveyed to the cold water return main pipe of the air conditioner and is conveyed to the refrigeration host. So far, the cold and hot double-storage device completes a cold storage cycle, and the operation is repeated. 2. And (3) a cooling process: and when the air conditioner load is higher in the peak power and the flat power periods in the daytime of cold seasons, the cold and hot double-storage device operates in a cold release mode. The cold water stored in the energy storage tank is pressurized by a cold discharge pump, then is conveyed to a cold water supply main pipe of the air conditioner, is conveyed to the tail end of an air conditioner user, enters a cold water return main pipe after being heated by heat exchange, and enters an upper water distributor from an upper connector of the energy storage tank after being pressurized by a cold water circulating pump of the air conditioner. At this point, the cooling completes one cycle, and so on.
The system operation in the heating season: 1. a heat storage process: the electricity price is lower at the time of heating valley electricity, and the heating allowance of the heating system is utilized for heat storage. The heat pump unit operates a heat storage working condition, the condenser outputs hot water, the hot water and hot water generated by the electric boiler are subjected to secondary temperature rise through the water plate type heat exchanger, and the hot water enters the upper water distributor from the upper connector of the energy storage tank. And the lower hot water is pressurized by the heat storage pump, then is conveyed to the air conditioner hot water return main pipe and is conveyed to the heat pump host. At this point, the cold and hot double-storage device completes a heat storage cycle, and the process is repeated. 2. An exothermic process: and when the load of the air conditioner is higher during peak electricity and peace electricity periods in the daytime in the heating season, the cold-heat double-storage device operates in a heat release mode. The hot water which can be stored in the energy storage tank is pressurized by the heat release pump and then is delivered to the hot water supply main pipe of the air conditioner and delivered to the tail end of an air conditioner user. The return water of the air conditioner cold water is pressurized by the air conditioner hot water circulating pump and then enters the upper water distributor from the upper connector of the energy storage tank. At this point, an exothermic cycle is completed, and so on.
The comprehensive energy system of the embodiment is provided with a cold-hot double-storage system, and the investment is lower in the early stage compared with the arrangement of two single energy storage devices; the excessive capacity quota of the unit caused by meeting the peak load is reduced, the unit model selection is reduced, and the early equipment investment is reduced; utilize millet electricity to carry out cold-storage heat accumulation, release according to the load demand when peak value electricity price and electricity price at ordinary times, reduce the live time of refrigerator and heat pump when high electricity price, the low-cost energy of saving when using low electricity price satisfies user's load demand, effectively reduce the running cost, electric water cooling type cooling water set simultaneously, sewage source heat pump set, air source heat pump set, electric boiler is the consumer, the high-efficient utilization of electric energy has been realized, the operation in-process does not produce the smoke and dust, carbon dioxide, pollutants such as nitrogen oxide, accomplish zero carbon and discharge, do not influence project environment quality, avoid environmental pollution.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. The utility model provides a zero carbon comprehensive energy system in garden, its characterized in that, includes refrigerating system, heating system and cold and hot two hold system, refrigerating system and cold and hot two hold system's cold water output is used for being connected with user load equipment, and refrigerating system's cold water output and cold and hot two hold system's cold water input are connected, heating system and cold and hot two hold system's hot water output be used for being connected with user load equipment, heating system's hot water output and cold and hot two hold system's hot water input are connected.
2. The campus zero carbon integrated energy system of claim 1 wherein the refrigeration system comprises a water cooled chiller system and a sewage source heat pump system.
3. The campus zero carbon integrated energy system of claim 2 wherein said water-cooled chiller system comprises a plurality of water-cooled chiller units.
4. The campus zero carbon integrated energy system of claim 3 wherein said water-cooled chiller plant employs an electric water-cooled chiller plant.
5. The campus zero carbon integrated energy system of claim 1 wherein the heating system comprises a sewage source heat pump system, an air source heat pump system, and a boiler system.
6. The campus zero carbon integrated energy system of claim 5 wherein the air source heat pump system comprises a plurality of air source heat pump units.
7. The campus of claim 5 wherein the boiler system comprises a plurality of boilers.
8. The system of claim 7, wherein the boiler is an electric boiler.
9. The zero-carbon energy complex system of claim 2 or 5, wherein the sewage source heat pump system comprises a plurality of sewage source heat pump units.
10. The campus of claim 1 wherein the chiller/heater dual storage system comprises a plurality of chiller/heater dual storage devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022697998.9U CN213747113U (en) | 2020-11-19 | 2020-11-19 | Zero-carbon comprehensive energy system for park |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022697998.9U CN213747113U (en) | 2020-11-19 | 2020-11-19 | Zero-carbon comprehensive energy system for park |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213747113U true CN213747113U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022697998.9U Active CN213747113U (en) | 2020-11-19 | 2020-11-19 | Zero-carbon comprehensive energy system for park |
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| Country | Link |
|---|---|
| CN (1) | CN213747113U (en) |
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- 2020-11-19 CN CN202022697998.9U patent/CN213747113U/en active Active
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