CN104791879A - Long-distance general-circulation graded heat supply system - Google Patents
Long-distance general-circulation graded heat supply system Download PDFInfo
- Publication number
- CN104791879A CN104791879A CN201510153878.3A CN201510153878A CN104791879A CN 104791879 A CN104791879 A CN 104791879A CN 201510153878 A CN201510153878 A CN 201510153878A CN 104791879 A CN104791879 A CN 104791879A
- Authority
- CN
- China
- Prior art keywords
- heat supply
- pipeline
- water return
- grades
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a long-distance general-circulation graded heat supply system. The long-distance general-circulation graded heat supply system comprises a powder plant waste heat center heat-exchange station, wherein the powder plant waste heat center heat-exchange station is connected with a first-grade heat supply pipeline, a first-grade water return pipeline is arranged beside the first-grade heat supply pipeline, a second-grade heat supply pipeline is connected to the first-grade water return pipeline, a second-grade water return pipeline is arranged beside the second-grade heat supply pipeline, a third-grade heat supply pipeline is connected with the second-grade water return pipeline, a third-grade water return pipeline is arranged beside the third-grade heat supply pipeline, the third-grade heat supply pipeline is connected with a plurality of grades of heat source units in sequence, the diameter of the first-grade heat supply pipeline, the diameter of the second-grade heat supply pipeline and the diameter of the third-grade heat supply pipeline become smaller gradually from the heat end to the tail end, and the diameter of the first-grade water return pipeline, the diameter of the second-grade water return pipeline and the diameter of the third-grade water return pipeline become larger gradually from the heat end to the tail end. The long-distance general-circulation graded heat supply system has the advantages that long-distance transportation of the heat sources can be achieved, the heat supply coverage is large, a large number of medium and small coal-fired boilers can be omitted, pollution caused by medium and small coal-fired boilers is reduced, and the heat supply quality can be guaranteed for urban residents.
Description
(1) technical field
The invention belongs to and utilize residual heat of electric power plant to carry out heat supply process field, particularly one long-range systemic circulation graded supply system.
(2) background technology
Being in the heating system of thermic load mode of movement with hot fluid (as hot water) sensible heat, needing repeatedly to carry out heat exchange, needing in system to utilize multiple coal-burning boiler to carry out heat exchange, waste resource, seriously polluted; And return water temperature is higher, from heat integration angle, the existence of the less temperature difference is irrational; Can not carry out long distance delivery heat, the area of heat-supply service of covering is less, greatly wastes the energy and labour cost.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides the long-range systemic circulation graded supply system that a kind of energy utilization rate is high, reduction is polluted, heat supply area coverage is large.
The present invention is achieved through the following technical solutions:
A kind of long-range systemic circulation graded supply system, comprise residual heat of electric power plant center heat exchange station, it is characterized in that: described residual heat of electric power plant center heat exchange station connects one-level heat supply pipeline, one-level heat supply pipeline is other is provided with one-level water return pipeline, one-level water return pipeline is connected with secondary heat supply pipeline, secondary heat supply pipeline is other is provided with secondary water return pipeline, secondary water return pipeline is connected with three grades of heat supply pipelines, three grades of heat supply pipeline sides are provided with three grades of water return pipelines, three grades of water return pipeline ends are connected with residual heat of electric power plant center heat exchange station, three grades of heat supply pipelines are connected with some grades of thermal source units in turn, one-level heat supply pipeline, the caliber of secondary heat supply pipeline and three grades of heat supply pipelines is evenly reduced to end by head end, one-level water return pipeline, the caliber of secondary water return pipeline and three grades of water return pipelines is evenly increased to and secondary heat supply pipeline to end by head end respectively, three grades of heat supply pipelines are identical with the head end caliber of one-level heat supply pipeline.
Described one-level heat supply pipeline end is connected with secondary heat supply pipeline head end and between secondary heat supply pipeline end with three grades of heat supply pipeline head ends by control valve.
Described three grades of heat supply pipelines are connected with Pyatyi thermal source unit successively.
The caliber of described one-level heat supply pipeline, secondary heat supply pipeline and three grades of heat supply pipelines is evenly decreased to the 200mm of end by the 1200mm of head end.
The caliber of described one-level water return pipeline, secondary water return pipeline and three grades of water return pipelines is evenly increased to the 1200mm of end by the 200mm of head end.
Described one-level water return pipeline and secondary heat supply pipeline and be connected with force (forcing) pump respectively between secondary water return pipeline and three grades of heat supply pipelines.
Be connected with some user's circulating water heating pipelines respectively between described one-level heat supply pipeline and one-level water return pipeline, between secondary heat supply pipeline and secondary water return pipeline, between three grades of heat supply pipelines and three grades of water return pipelines, user's circulating water heating pipeline is connected with plate type heat exchanger.
The invention has the beneficial effects as follows: thermal source can long distance delivery, cover area of heat-supply service large, the use of many middle and small burn coal boilers can be abandoned; Thermal losses is low, thermal source quick heating, ensure that the pollution that thermal source flow velocity, energy utilization rate are high, decrease middle and small burn coal boiler, based on the pipe network of existing market, the heating effect of four to five times can be increased, substantially increase thermal source benefit, ensure that the heating quality of Residents.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is structural representation of the present invention;
In figure, 1 residual heat of electric power plant center heat exchange station, 2 one-level heat supply pipelines, 3 one-level water return pipelines, 4 secondary heat supply pipelines, 5 secondary water return pipelines, 6 three grades of heat supply pipelines, 7 three grades of water return pipelines, 8 thermal source units, 9 control valves, 10 force (forcing) pumps, 11 user's circulating water heating pipelines, 12 plate type heat exchangers.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises residual heat of electric power plant center heat exchange station 1, residual heat of electric power plant center heat exchange station 1 connects one-level heat supply pipeline 2, one-level heat supply pipeline 2 is other is provided with one-level water return pipeline 3, one-level water return pipeline 3 is connected with secondary heat supply pipeline 4, secondary heat supply pipeline 4 is other is provided with secondary water return pipeline 5, secondary water return pipeline 5 is connected with three grades of heat supply pipelines 6, three grades of heat supply pipeline 6 sides are provided with three grades of water return pipelines 7, three grades of water return pipeline 7 ends are connected with residual heat of electric power plant center heat exchange station 1, three grades of heat supply pipelines 6 are connected with some grades of thermal source units 8 in turn, one-level heat supply pipeline 2, the caliber of secondary heat supply pipeline 4 and three grades of heat supply pipelines 6 is evenly reduced to end by head end, one-level water return pipeline 3, the caliber of secondary water return pipeline 5 and three grades of water return pipelines 7 is evenly increased to and secondary heat supply pipeline 4 to end by head end respectively, three grades of heat supply pipelines 6 are identical with the head end caliber of one-level heat supply pipeline 2.One-level heat supply pipeline 2 end is connected with secondary heat supply pipeline 4 head end and between secondary heat supply pipeline 4 end with three grades of heat supply pipeline 6 head ends by control valve 9.Three grades of heat supply pipelines 6 are connected with Pyatyi thermal source unit 8 successively.The caliber of one-level heat supply pipeline 2, secondary heat supply pipeline 4 and three grades of heat supply pipelines 6 is evenly decreased to the 200mm of end by the 1200mm of head end.The caliber of one-level water return pipeline 3, secondary water return pipeline 5 and three grades of water return pipelines 7 is evenly increased to the 1200mm of end by the 200mm of head end.One-level water return pipeline 3 and secondary heat supply pipeline 4 and be connected with force (forcing) pump 10 respectively between secondary water return pipeline 5 and three grades of heat supply pipelines 6.Be connected with some user's circulating water heating pipelines 11 respectively between one-level heat supply pipeline 2 and one-level water return pipeline 3, between secondary heat supply pipeline 4 and secondary water return pipeline 5, between three grades of heat supply pipelines 6 and three grades of water return pipelines 7, user's circulating water heating pipeline 11 is connected with plate type heat exchanger 12.
Adopt one of the present invention long-range systemic circulation graded supply system, residual heat of electric power plant center heat exchange station 1 high-temperature water out enters one-level heat supply pipeline 2, the caliber of one-level heat supply pipeline 2 is evenly reduced to the 200mm of end gradually by 1200mm, ensure that pressure and the flow velocity of thermal source, can long distance delivery thermal source; 70 DEG C are reduced to when water in residual heat of electric power plant center heat exchange station 1 walks to end by 90 DEG C, one-level water return pipeline 3 high-temperature water out enters secondary heat supply pipeline 4, the caliber of secondary heat supply pipeline 3 is evenly reduced to the 200mm of end gradually by 1200mm, ensure again that pressure and the flow velocity of thermal source, can long distance delivery thermal source; Secondary water return pipeline 5 thermal source has out reduced to 40 DEG C ~ 50 DEG C, enter three grades of heat supply pipelines 6, thermal source in three grades of heat supply pipelines 6 activates through Pyatyi thermal source unit 8 successively in flow process, heat supply temperature 60 DEG C can be reached respectively, thermal source after Pyatyi thermal source unit 8 has dropped to about 10 DEG C, again cannot be activated heating by thermal source unit 8, backwater is to power plant, the caliber of three grades of heat supply pipelines 6 is evenly reduced to the 200mm of end gradually by 1200mm, another ensure that flow velocity and the pressure of thermal source, increases the distance of conveying thermal source further; Like this, over distance heat demand can be ensured by the residual heat high-temperature water in a power plant, the area of heat-supply service of several ten million square metres can be covered more, like this all abandoning for the coal-burning boiler on hot path, greatly save the energy, reduced environmental pollution.Between one-level heat supply pipeline 2 with one-level water return pipeline 3, between secondary heat supply pipeline 4 with secondary water return pipeline 5, the circulation heating pipeline that forms of three grades of heat supply pipelines 6 user circulating water heating pipeline 11 in parallel with between three grades of water return pipelines 7 can be respectively used to the heat demand of user.The caliber of one-level water return pipeline 3, secondary water return pipeline 5 and three grades of water return pipelines 7 increases to 1200mm by the 200mm of head end respectively, makes it identical with the head end caliber of one-level heat supply pipeline 2 with secondary heat supply pipeline 4, three grades of heat supply pipelines 6 respectively and synchronously docks.Be connected with force (forcing) pump 10 respectively between one-level water return pipeline 3 and secondary heat supply pipeline 4 and between secondary water return pipeline 5 and three grades of heat supply pipelines 6, ensure that water and heat provision pressure differential pressure flow is constant, further for long distance delivery thermal source provides guarantee.The caliber of one-level heat supply pipeline 2, secondary heat supply pipeline 4 and three grades of heat supply pipelines 6 is evenly decreased to the 200mm of end by the 1200mm of head end; The caliber of one-level water return pipeline 3, secondary water return pipeline 5 and three grades of water return pipelines 7 is evenly increased to the 1200mm of end by the 200mm of head end; According to burden requirement, its size can be changed, to adapt to different heat supply Distance geometry areas.Thermal source unit 8 reactivates the water of heating less than 50 DEG C, and the heat energy loss of every grade of thermal source unit 8 is at about 8 DEG C, and the water of less than 10 DEG C cannot be activated heating by thermal source unit 8 again, therefore needs Pyatyi thermal source unit 8.
Adopt one of the present invention long-range systemic circulation graded supply system, this heating pipe network technique adopts heat supply water inlet to be combined with backwater, Pyatyi can be reached to six grades of heat supplies, three grades of heat supply pipelines 6 can connect level Four, Pyatyi, six grades of heat supplies below, and its version and heating parameter are all identical with three grades of heat supply pipelines 6.
Claims (7)
1. a long-range systemic circulation graded supply system, comprise residual heat of electric power plant center heat exchange station (1), it is characterized in that: described residual heat of electric power plant center heat exchange station (1) connects one-level heat supply pipeline (2), one-level heat supply pipeline (2) is other is provided with one-level water return pipeline (3), one-level water return pipeline (3) is connected with secondary heat supply pipeline (4), secondary heat supply pipeline (4) is other is provided with secondary water return pipeline (5), secondary water return pipeline (5) is connected with three grades of heat supply pipelines (6), three grades of heat supply pipeline (6) sides are provided with three grades of water return pipelines (7), three grades of water return pipeline (7) ends are connected with residual heat of electric power plant center heat exchange station (1), three grades of heat supply pipelines (6) are connected with some grades of thermal source units (8) in turn, one-level heat supply pipeline (2), the caliber of secondary heat supply pipeline (4) and three grades of heat supply pipelines (6) is evenly reduced to end by head end, one-level water return pipeline (3), the caliber of secondary water return pipeline (5) and three grades of water return pipelines (7) is evenly increased to and secondary heat supply pipeline (4) to end by head end respectively, three grades of heat supply pipelines (6) are identical with the head end caliber of one-level heat supply pipeline (2).
2. one according to claim 1 long-range systemic circulation graded supply system, is characterized in that: described one-level heat supply pipeline (2) end is connected with secondary heat supply pipeline (4) head end and between secondary heat supply pipeline (4) end with three grades of heat supply pipeline (6) head ends by control valve (9).
3. one according to claim 1 long-range systemic circulation graded supply system, is characterized in that: described three grades of heat supply pipelines (6) are connected with Pyatyi thermal source unit (8) successively.
4. one according to claim 1 long-range systemic circulation graded supply system, is characterized in that: the caliber of described one-level heat supply pipeline (2), secondary heat supply pipeline (4) and three grades of heat supply pipelines (6) is evenly decreased to the 200mm of end by the 1200mm of head end.
5. one according to claim 1 long-range systemic circulation graded supply system, is characterized in that: the caliber of described one-level water return pipeline (3), secondary water return pipeline (5) and three grades of water return pipelines (7) is evenly increased to the 1200mm of end by the 200mm of head end.
6. one according to claim 1 long-range systemic circulation graded supply system, is characterized in that: described one-level water return pipeline (3) and secondary heat supply pipeline (4) and be connected with force (forcing) pump (10) respectively between secondary water return pipeline (5) and three grades of heat supply pipelines (6).
7. one according to claim 1 long-range systemic circulation graded supply system, it is characterized in that: be connected with some user's circulating water heating pipelines (11) respectively between described one-level heat supply pipeline (2) and one-level water return pipeline (3), between secondary heat supply pipeline (4) and secondary water return pipeline (5), between three grades of heat supply pipelines (6) and three grades of water return pipelines (7), user's circulating water heating pipeline (11) is connected with plate type heat exchanger (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153878.3A CN104791879B (en) | 2015-04-02 | 2015-04-02 | A kind of long-range systemic circulation graded supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153878.3A CN104791879B (en) | 2015-04-02 | 2015-04-02 | A kind of long-range systemic circulation graded supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104791879A true CN104791879A (en) | 2015-07-22 |
| CN104791879B CN104791879B (en) | 2017-09-19 |
Family
ID=53556901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510153878.3A Expired - Fee Related CN104791879B (en) | 2015-04-02 | 2015-04-02 | A kind of long-range systemic circulation graded supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791879B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2406901A (en) * | 2003-10-06 | 2005-04-13 | Ec Power As | A combined heat and power unit with a feedback conduit for temperature regulation |
| CN101307929A (en) * | 2008-06-30 | 2008-11-19 | 曹天宏 | Architecture pressure charging temperature reduction heating apparatus |
| CN202048614U (en) * | 2010-12-08 | 2011-11-23 | 余弟和 | Water-heating heat recycling device |
| CN202561872U (en) * | 2012-05-03 | 2012-11-28 | 盾安（天津）节能系统有限公司 | Tandem-type heating pipeline connecting structure |
| CN103115388A (en) * | 2013-03-06 | 2013-05-22 | 中国神华能源股份有限公司 | Thermal power plant circulating water heat supply system |
| CN104456685A (en) * | 2014-05-26 | 2015-03-25 | 宋春节 | Multi-heat-source single-pipe waste heat utilization heat supply system |
| CN204534765U (en) * | 2015-04-02 | 2015-08-05 | 王明星 | A kind of long-range systemic circulation graded supply system |
-
2015
- 2015-04-02 CN CN201510153878.3A patent/CN104791879B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2406901A (en) * | 2003-10-06 | 2005-04-13 | Ec Power As | A combined heat and power unit with a feedback conduit for temperature regulation |
| CN101307929A (en) * | 2008-06-30 | 2008-11-19 | 曹天宏 | Architecture pressure charging temperature reduction heating apparatus |
| CN202048614U (en) * | 2010-12-08 | 2011-11-23 | 余弟和 | Water-heating heat recycling device |
| CN202561872U (en) * | 2012-05-03 | 2012-11-28 | 盾安（天津）节能系统有限公司 | Tandem-type heating pipeline connecting structure |
| CN103115388A (en) * | 2013-03-06 | 2013-05-22 | 中国神华能源股份有限公司 | Thermal power plant circulating water heat supply system |
| CN104456685A (en) * | 2014-05-26 | 2015-03-25 | 宋春节 | Multi-heat-source single-pipe waste heat utilization heat supply system |
| CN204534765U (en) * | 2015-04-02 | 2015-08-05 | 王明星 | A kind of long-range systemic circulation graded supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104791879B (en) | 2017-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203893353U (en) | Air handling system with heat recovery and preheating function | |
| CN202511359U (en) | Combined station sewage waste heat direct heating system | |
| CN204534765U (en) | A kind of long-range systemic circulation graded supply system | |
| CN103615795A (en) | Capillary tube heat exchange system used for sea water source heat pump | |
| CN202040890U (en) | Distribution type heat supply system | |
| CN104791879A (en) | Long-distance general-circulation graded heat supply system | |
| CN204593527U (en) | Heating network heat pump regulating system | |
| CN203757982U (en) | Capillary heat exchange system used for seawater source heat pump | |
| CN204128034U (en) | A kind of central heating system that primary water is recycled | |
| CN203671710U (en) | High-low area direct connection and water mixing combined unit | |
| CN202002315U (en) | Self-energy-storage electric boiler | |
| CN202581269U (en) | Superconducting heat-exchange system of waste heat of boiler | |
| CN206386911U (en) | A kind of chemical water heating system | |
| CN201582558U (en) | Floating tank system of thermal pump station of intermediate station | |
| CN206131142U (en) | Customer side heating device | |
| CN105444243A (en) | Waste heat recovery heat supply and water charging system and water charging method | |
| CN205300033U (en) | Novel energy storage energy supply regional energy system | |
| CN204962924U (en) | Can scale up and scale up heating system of unit along with heating area | |
| CN203533934U (en) | Centralized water supply pressure equalizing device for all heat collecting units in solar centralized heating system | |
| CN205481254U (en) | Many heats source of run -in heating device that is incorporated into power networks that establishes ties | |
| CN201981438U (en) | Heating system with a plurality of preheating cylinders | |
| CN216481069U (en) | High-efficient flue gas waste heat recovery device of hot exhaust recycle kiln equipment | |
| CN207350425U (en) | A kind of multistage fuse salt heating plant | |
| CN207527687U (en) | A kind of boiler direct heating system | |
| CN104728898A (en) | Heat supply pipe network heat pump adjusting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20200402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |