CN107238232A - A kind of region centralized energy supply system and method - Google Patents
A kind of region centralized energy supply system and method Download PDFInfo
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- CN107238232A CN107238232A CN201611078141.0A CN201611078141A CN107238232A CN 107238232 A CN107238232 A CN 107238232A CN 201611078141 A CN201611078141 A CN 201611078141A CN 107238232 A CN107238232 A CN 107238232A
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- user
- energy supply
- main website
- powering device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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Abstract
The present invention relates to district heating/cold supply system technical field, specifically disclose a kind of region centralized energy supply system, including a main website, at least one main energy supply pipeline, multiple user side powering devices and auxiliary energy supply pipeline, the efficiency of main website is more than the efficiency of user side powering device；Main energy supply pipeline one end is connected with main website, and the other end is connected to the user of distal end；User side powering device connects at least one nearby users nearby, and auxiliary energy supply pipeline one end connection user side powering device, the other end is connected on the main energy supply pipeline.Energy supply method in a kind of set of regions is also disclosed, is comprised the following steps：S1, when area's intra domain user is less, first close to user position build user side powering device；S2, increasing with area's intra domain user, build main website.The present invention greatly reduces investment, while reducing system delivery pump consumption and heat loss, system economy is good.
Description
Technical field
The present invention relates to district heating/cold supply system technical field, specifically a kind of region centralized energy supply system and method.
Background technology
With being widely applied for southern central cooling heat supply, increasing place carries out region using regenerative resource
Central cooling heating system, as shown in figure 1, it is mainly characterized by setting a regenerative resource central cooling heat supply station,
Multiple devices unit is set in station, energy supply is externally carried out by localized ducting, main website 1 by feed pipe and return pipe with
User 5 connects.
This system can mainly should be in the higher area of plot ratio, using regenerative resource or the higher skill of other efficiencies
Art, various energy resources are set in an energy source station, by the centralizedly supply of pipe network, can play raising running efficiency of system, drop
The purpose of Low investment.But the problem of system also has larger, is concentrated mainly on：
1st, when energizing radius farther out, system delivery pump consumption, thermal loss are larger；
2nd, centralized energy supply system initial investment in construction area is high, particularly energizes conveyance conduit investment high；
3rd, in the early stage of region centralized energy supply system Development control area, energy supply station, equipment, pipeline etc. all should shift to an earlier date with using
User connects, and the user used in early stage is less, and income is than relatively low, and system economy is poor.
The content of the invention
The present invention is in the prior art using a main website to central energy supply initial investment height, system economy in region
Poor the problem of, and a kind of initial investment of research and design is small, the good region centralized energy supply system of system economy and method.
The technical solution adopted by the present invention is：
A kind of region centralized energy supply system, it is characterised in that the energy supplying system includes a main website, at least one main confession
Energy pipeline, multiple user side powering devices and auxiliary energy supply pipeline, the efficiency of the main website are more than the user side powering device
Efficiency；Described main energy supply pipeline one end is connected with main website, and the other end is connected to the user of distal end；The user side powering device
At least one nearby users is connected nearby, and auxiliary energy supply pipeline one end connection user side powering device, the other end is connected to
On the main energy supply pipeline.
Further, the main energy supply pipeline includes main-supply and main water return tube, and the auxiliary energy supply pipeline includes auxiliary
Feed pipe and auxiliary return pipe are helped, user is connected to main energy supply pipeline by user's feed pipe and user's return pipe.
Further, the nearly main-supply side of user's feed pipe is connected with main website water supply pump unit, user's backwater
Manage nearly user side and be connected with user's backwater pump unit, the auxiliary water-feeding tube and be connected with auxiliary pump unit.
Further, the first electronic pressure gage and the have been connected respectively on the auxiliary water-feeding tube and auxiliary return pipe
Two electronic pressure gages, its reading is respectively p1And p2, wherein Δ p=p1-p2, auxiliary pump unit is using constant pressure difference frequency conversion control
The flow of water pump processed, after the temperature of user side is set, Δ p value is constant.
Further, the main website meets the demand of basic load, is the 40%~50% of Design cooling load, the user side
Powering device meets the demand of user's peakload, is the 50%~60% of Design cooling load.
Further, the main website uses renewable energy technologies and/or cold, heat and power triple supply system.
Energy supply method in a kind of set of regions, it is characterised in that comprise the following steps：
S1, when area's intra domain user is less, first build user side powering device close to the position of user, user accesses nearby
User side powering device, the workload demand of user is met by user side powering device；
S2, increasing with area's intra domain user, build main website, and user side powering device is connected to main website by energizing pipeline
Energy transmission lines on, the efficiency of the main website is more than the efficiency of user side powering device.
Further, when needing the user for accessing centralized energy supply system to exceed 50% of whole resident families in region, main website
Start to come into operation.
Further, auxiliary pump unit adjusts the flow of water pump using constant pressure difference frequency conversion；The perseverance of auxiliary pump unit
Load of the level pressure difference according to needed for accessing user is preset, make with increasing for accessing user the setting value of constant pressure difference by
It is cumulative big.
Further, after the completion of user side powering device and main website are built, in customer charge low season, only transport
Row main website；In load high season, when main website can not meet the workload demand of user, open user side powering device and adjusted
Peak.
Compared with prior art, the present invention apparently has the advantages that：
1st, at area's intra domain user less initial stage, supplied close to the user side that customer investment construction system is relatively simple, investment is low
Can equipment, the later stage builds that efficiency is higher, system complex main website with the reinvestment that increases of user, and user side powering device, which rises, to be adjusted
Peak is acted on.
2nd, in customer charge than larger season, the load of main website carrying 40%~50%, the carrying of user side powering device
50%~60% load, plays Peak Load Adjustment, effectively reduces the caliber of main energy supply pipeline, greatly reduces investment, subtract simultaneously
Mini system delivery pump consumes and heat loss.
Brief description of the drawings
Fig. 1 is prior art region centralized energy supply system schematic diagram；
Fig. 2 is the centralized energy supply system schematic diagram of the embodiment of the present invention 1；
Fig. 3 is user's heat exchange station and user side powering device detailed construction schematic diagram at A in Fig. 2；
Fig. 4 is that the embodiment of the present invention 1 builds main website pre-structure schematic diagram；
Fig. 5 is the user's heat exchange station of the embodiment of the present invention 2 and user side powering device detailed construction schematic diagram.
In figure, 1, main website, 2, main energy supply pipeline, 21, main-supply, 22, main water return tube, 3, user side powering device, 4,
Auxiliary energy supply pipeline, 41, auxiliary water-feeding tube, 42, auxiliary return pipe, 5, user, 6, user's backwater pump unit, 7, main website supply-water pump
Unit, 8, auxiliary pump unit, the 9, first electronic pressure gage, the 10, second electronic pressure gage, 11, shut-off valve, 12, plate-type heat-exchange
Device, 13, user's heat exchange station, 14, user's feed pipe, 15, user's return pipe.
Embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
In the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.
Heretofore described user base load refers to user required for transition season (generally season in spring and autumn)
Load；Design cooling load refers to that whole region centralized energy supply system is met by the load of user；User's peakload refers to user
Actually required load is higher than the value of user base load.
Embodiment 1
As shown in figs 2-4, when area's intra domain user 5 is less, typically user 5 whole area can be less than or equal in setting regions
Yu Nei resident families 50% when, the workload demand of user 5 is met using user side powering device 3, when user 5 gradually increases, area
When intra domain user 5 is more than the 50% of whole region resident family, start the higher main website 1 of efficiency that comes into operation.Main website 1 can be used can be again
The higher technology of the raw efficiency such as the energy and/or cold, heat and power triple supply system.User side powering device uses air-cooled heat pump, gas-fired boiler
The efficiencies such as stove are relatively low, and single-throw provides equipment small, simple in construction.
Energy supply method comprises the following steps in the set of regions of the present invention：
S1, when area's intra domain user 5 is less, first build user side powering device 3 close to the position of user 5, user 5 is nearby
Accessing user side powering device 3, the workload demand of user 5 is met by user side powering device 3；As shown in figure 4, a user side
Powering device 3 can connect multiple users 5 simultaneously, can typically connect 1~3 family user 5.
S2, increasing with area's intra domain user 5, build main website 1, and referring to Fig. 2, user side powering device 3 is managed by energizing
Road is connected on the energy transmission lines 2 of main website, and the efficiency of the main website 1 is more than the efficiency of user side powering device 3, typically when needs
When the user 5 of central energy supply exceedes 50% of whole resident families in region, main website 1 starts to come into operation.
Main website 1 meets the 40%~50% of the basic load of user, generally Design cooling load, and user side equipment 3, which is met, to be used
The 50%~60% of family peakload, generally Design cooling load, plays Peak Load Adjustment.Specifically, in the relatively low spring and autumn of load
Section, can only run main website 1, because the efficiency of main website 1 is higher, most save the energy；In the higher season of summer and winter of load, oepration at full load
Main website 1, while opening user side powering device 3, as peak regulation, meets the deficiency that main website 1 is energized to user 5.
The region centralized energy supply system of the embodiment of the present invention as shown in figs 2-4, including a main website 1, at least one
Main energy supply pipeline 2, multiple user side powering devices 3 and auxiliary energy supply pipeline 4, the efficiency of main website 1 are more than user side powering device 3
Efficiency；Main energy supply one end of pipeline 2 is connected with main website 1, and the other end is connected to the user 5 of distal end；User side powering device 3 is nearby
At least one nearby users 5 is connected, auxiliary energy supply pipeline 4 one end connects user side powering device 3, and the other end is connected to main energy supply
On pipeline 2.
Main energy supply pipeline 2 includes main-supply 21 and main water return tube 22, and auxiliary energy supply pipeline 4 includes the He of auxiliary water-feeding tube 41
Return pipe 42 is aided in, user 5 is connected to main energy supply pipeline 2 by user's feed pipe 14 and user's return pipe 15.
The nearly side of main-supply 21 of user's feed pipe 14 is connected with main website water supply pump unit 7, the nearly side of user 5 of user's return pipe 15
It is connected with user's backwater pump unit 6, auxiliary water-feeding tube 41 and is connected with auxiliary pump unit 8.
The first electronic pressure gage 9 and the second electronics pressure have been connected respectively on auxiliary water-feeding tube 41 and auxiliary return pipe 42
Power table 10, its reading is respectively p1And p2, wherein Δ p=p1-p2, auxiliary pump unit 8 is using constant pressure difference VFC water pump
Flow, after the temperature of user 5 side is set, Δ p value is constant, and pressure difference is set in the front end of the water pump of auxiliary pump unit 8
Control valve, the pressure demand of end is detected by differential pressure control valve in real time, and constant pressure difference adjusts the frequency of water pump, to meet use
The workload demand at family 5.
The main progress built according to end load of the constant pressure difference value of user side pump unit is preset, and works as place
In first stage of construction, user side pump unit mainly meets one, periphery user 5, with the propulsion of construction progress, user side water pump
Unit meets the workload demand of periphery user 5 by setting up pressure difference (the pipeline loss values of increase nearby users 5).Auxiliary pump
Load of the constant pressure difference of unit 8 according to needed for accessing user 5 is preset, and makes constant pressure with increasing for accessing user 5
The setting value of difference gradually increases.
Main website 1 uses regenerative resource or the higher technology of other efficiencies, and investment is high, building time is long, and income is slow, in area
The early stage systematic economy performance that domain central energy supply is built is poor, although and the energy consumption of user side powering device 5 is of a relatively high, investment
Low, building time is short, can give the workload demand for meeting user 5 in time.
In the present embodiment, as shown in figure 3, user 5 is directly connected to energy supply main website 1, i.e., used in the energy supply pipeline access of user 5
Before family 5, connection user feed pipe 14 and user's return pipe 15, and a shut-off valve 11 is set on the pipeline of connection, as user 5
When need not energize, it is only necessary to which the water opened in this shut-off valve 11, feed pipe flows directly into return pipe, and without flowing to user 5.
Embodiment 2
As shown in figure 5, the difference relative to embodiment 1 is, user 5 is indirectly connected with energy supply main website 1, and user 5 is with supplying
Plate type heat exchanger 12 can be provided between main website 1.
The above-mentioned desirable embodiment according to the present invention is enlightenment, and by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical
Scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (10)
1. a kind of region centralized energy supply system, it is characterised in that the energy supplying system includes a main website (1), at least one master
Pipeline (2), multiple user side powering devices (3) and auxiliary energy supply pipeline (4) are energized, the efficiency of the main website (1) is more than described
The efficiency of user side powering device (3)；Described main energy supply pipeline (2) one end is connected with main website (1), and the other end is connected to distal end
User (5)；The user side powering device (3) connects at least one nearby users (5), the auxiliary energy supply pipeline (4) nearby
One end connection user side powering device (3), the other end is connected on the main energy supply pipeline (2).
2. region centralized energy supply system according to claim 1, it is characterised in that the main energy supply pipeline (2) includes master
Feed pipe (21) and main water return tube (22), the auxiliary energy supply pipeline (4) include auxiliary water-feeding tube (41) and auxiliary return pipe
(42), user (5) is connected to main energy supply pipeline (2) by user's feed pipe (14) and user's return pipe (15).
3. region centralized energy supply system according to claim 2, it is characterised in that the nearly main confession of user's feed pipe (14)
Water pipe (21) side is connected with main website water supply pump unit (7), and nearly user (5) side of user's return pipe (15) is connected with user's backwater
Auxiliary pump unit (8) is connected with pump unit (6), the auxiliary water-feeding tube (41).
4. region centralized energy supply system according to claim 3, it is characterised in that the auxiliary water-feeding tube (41) and auxiliary
The first electronic pressure gage (9) and the second electronic pressure gage (10) are connected respectively on return pipe (42), its reading is respectively
p1And p2, wherein Δ p=p1-p2, auxiliary pump unit (8) uses the flow of constant pressure difference VFC water pump, as setting user
(5) after the temperature of side, Δ p value is constant.
5. region centralized energy supply system according to claim 1, it is characterised in that the main website (1) meets basic load
Demand, be the 40%~50% of Design cooling load, the user side powering device (5) meets the demand of user's peakload, is
The 50%~60% of Design cooling load.
6. region centralized energy supply system according to claim 1, it is characterised in that the main website (1) uses renewable energy
Source technology and/or cold, heat and power triple supply system.
7. energy supply method in a kind of set of regions, it is characterised in that comprise the following steps：
S1, when area's intra domain user (5) is less, first close to user (5) position build user side powering device (3), user (5)
Accessing user side powering device (3), the workload demand of user (5) is met by user side powering device (3) nearby；
S2, increasing with area's intra domain user (5), build main website (1), and user side powering device (3) is connected by energizing pipeline
Onto the energy transmission lines (2) of main website, the efficiency of the main website (1) is more than the efficiency of user side powering device (3).
8. energy supply method in set of regions according to claim 7, it is characterised in that when needing to access centralized energy supply system
When user (5) exceedes 50% of whole resident families in region, main website (1) starts to come into operation.
9. energy supply method in set of regions according to claim 7, it is characterised in that auxiliary pump unit (8) is using constant
Pressure difference frequency conversion adjusts the flow of water pump；Load of the constant pressure difference of auxiliary pump unit (8) according to needed for accessing user (5) is advance
Setting, the setting value for increasing and making constant pressure difference with accessing user (5) gradually increases.
10. energy supply method in set of regions according to claim 7, it is characterised in that when user side powering device (3) and master
Stand after the completion of (1) construction, in user (5) load low season, only run main website (1)；In load high season, main website (1)
When can not meet the workload demand of user (5), open user side powering device (5) and carry out peak regulation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078141.0A CN107238232B (en) | 2016-11-29 | 2016-11-29 | Regional centralized energy supply method |
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| CN201611078141.0A CN107238232B (en) | 2016-11-29 | 2016-11-29 | Regional centralized energy supply method |
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| CN107238232A true CN107238232A (en) | 2017-10-10 |
| CN107238232B CN107238232B (en) | 2020-03-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628900A (en) * | 2021-01-21 | 2021-04-09 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
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| CN203083197U (en) * | 2012-09-10 | 2013-07-24 | 陈戈 | Multisource domain type combined cooling , heating and power (CCHP) energy network system |
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| CN112628900A (en) * | 2021-01-21 | 2021-04-09 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
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Address after: 213000 room 1b, gongyanhui, No. 160, Xihu West Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Yichuan Energy Technology Co.,Ltd. Address before: 213100 room 701-1, building C, No. 588, Changwu South Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee before: JIANGSU SHOUCHUANG NEW ENERGY TECHNOLOGY Co.,Ltd. |
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