CN106642272A - Energy-saving and environment-friendly heat supply method for thermal power plant - Google Patents
Energy-saving and environment-friendly heat supply method for thermal power plant Download PDFInfo
- Publication number
- CN106642272A CN106642272A CN201710092465.8A CN201710092465A CN106642272A CN 106642272 A CN106642272 A CN 106642272A CN 201710092465 A CN201710092465 A CN 201710092465A CN 106642272 A CN106642272 A CN 106642272A
- Authority
- CN
- China
- Prior art keywords
- power plant
- thermal power
- heat supply
- environment
- energy
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002351 wastewater Substances 0.000 claims abstract description 17
- 239000008400 supply water Substances 0.000 claims abstract description 3
- 239000000498 cooling water Substances 0.000 claims description 14
- 230000002209 hydrophobic effect Effects 0.000 claims description 7
- 239000003245 coal Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 239000002956 ash Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 239000012267 brine Substances 0.000 claims description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000002918 waste heat Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009713 electroplating Methods 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000010612 desalination reaction Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000001223 reverse osmosis Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/28—Feed-water heaters, i.e. economisers or like preheaters for direct heat transfer, e.g. by mixing water and steam
- F22D1/30—Feed-water heaters, i.e. economisers or like preheaters for direct heat transfer, e.g. by mixing water and steam with stages, steps, baffles, dishes, circular troughs, or other means to cause interrupted or cascading fall of water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/0092—Devices for preventing or removing corrosion, slime or scale
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an energy-saving and environment-friendly heat supply method for a thermal power plant. According to the energy-saving and environment-friendly heat supply method disclosed by the invention, technical equipment in the existing market is used, the heat of drainage and circulating wastewater discarded by the thermal power plant is recovered through equipment combination, that is, the drainage and circulating wastewater containing certain heat and discarded by the thermal power plant is collected to achieve the needed heat supply water amount, water quality treatment is carried out, then temperature adjustment is carried out by virtue of the auxiliary steam of the thermal power plant, and finally heat is supplied to cities and industrial parks. The method mainly aims at reutilizing the waste heat of the thermal power plant and reducing the outward discharge of the circulating wastewater, thus reducing adverse effects on the surrounding environment and achieving the purposes of energy conservation and environment protection; and the service objects are mainly heat supply and heating users needing heat supply temperatures of lower than 100 DEG C of electroplating enterprise, hotels, office buildings and the like.
Description
Technical field
The present invention relates to energy-conserving and environment-protective heat supply process field, the energy-conserving and environment-protective heat supply method of more particularly to a kind of thermal power plant.
Background technology
Thermal power plant's heat supply is one of basic mode of China city and industrial park heat supply.With adding for China's urban development
The commercially available development of the scale increase of Kuai Ji industrial parks, China's city heat supply and industrial park heat supply, waste heat is recycled
And the sustainable development that the energy-saving heating mode of environmental protection is beneficial to city and industrial park is taken into account, also comply with city energy-conserving and environment-protective
Requirement, this trend will become future city and industrial park heating industry development direction.Current thermal power plant condenser
The type of cooling is most to be cooled down using the circulation with cooling tower, but due to the evaporation etc. of moisture in cooling procedure
The effect of factor, can make the salt content of water quality exceeded, produce impact to the security of unit circulation, it is therefore necessary to pass through
The continuous externally blowdown of recirculated water makes recirculated water salt concentration be maintained at normal level with the mode for supplementing fresh water, but recirculated water connects
Continuous sewer saliferous is higher, and blowdown can produce harmful effect to surrounding enviroment.The waste heat that the present invention can discard power plant is returned
Receive and utilize, while and reduce the higher Wastewater Form Circulating Cooling Water of salt content and externally discharge, reach the purpose of energy-saving and environmental protection.
The content of the invention
In order to improve the unit efficiency of thermal power plant, impact of the Circulating water effluent to surrounding enviroment is reduced, in the urgent need to by fire
The waste heat and Wastewater Form Circulating Cooling Water that power plant discards is recycled.The invention provides a kind of heat supply of the energy-conserving and environment-protective of thermal power plant
Method, by collecting the hydrophobic and Wastewater Form Circulating Cooling Water containing certain temperature that thermal power plant discards, through water treatment, then with fire
The auxiliary steam of power plant carries out temperature adjustment, and most backward city and industrial park carry out heat supply, not only have collected during this it is hydrophobic and
The waste heat of recirculated water, while reducing the external discharge of Wastewater Form Circulating Cooling Water, reduces Wastewater Form Circulating Cooling Water to surrounding enviroment
Affect.At present for the discharge of Wastewater Form Circulating Cooling Water is all the time all without good solution, the present invention not only may be used for China
Utilized with the waste heat to recirculated water, while reducing the discharge of Wastewater Form Circulating Cooling Water, reached double profits of energy-conserving and environment-protective,
Mainly to residual heat of electric power plant and the recycling of Wastewater Form Circulating Cooling Water, service object is electroplating enterprise, hotel and office building to the method
Etc. the heat supply heating user for needing heat supply temperature to be less than 100 DEG C.
The technical solution used in the present invention is：The present invention mainly (is included by attemperater, water pump, water quality adjustment equipment
The equipment such as filter screen and pH value adjuster, depending on concrete equipment is according to water quality requirement), Reverse Osmosis Desalination Process Equipment, the group such as register
Into.It is characterized in that collecting thermal power plant has the hydrophobic and Wastewater Form Circulating Cooling Water of uniform temperature to attemperater, through delivery pump
Deliver to water quality adjustment equipment, water quality be adjusted, then after Reverse Osmosis Desalination Process Equipment desalination, a small amount of saliferous of abjection compared with
High strong brine enters ash-slag disposal system or coal yard, and for ash, slag or coal yard damping, the relatively low fresh water of substantial amounts of saliferous enters temperature adjustment
Device, is adjusted with thermal power plant's auxiliary steam in register to water temperature, reach it is temperature required after externally confess, auxiliary steam
Vapour enters attemperater Jing after register and carries out Hybrid Heating with the water of attemperater.
The invention has the advantages that, the present invention uses existing market technical equipment, is combined by equipment, and thermal power plant is discarded
Hydrophobic and Wastewater Form Circulating Cooling Water heat reclaimed, reach the required heat supply water yield, become through water treatment, adjustment
Available high-temperature-hot-water, to city and industrial park heat supply is carried out, and while recovery waste heat, is reduced outside Wastewater Form Circulating Cooling Water
The harmful effect that row causes to peripheral ring, obtains double profits of energy-conserving and environment-protective, is finally reached the purpose of energy-conserving and environment-protective heat supply.
Description of the drawings
Concrete structure of the present invention is described in detail in conjunction with accompanying drawing, Fig. 1 is a kind of energy-saving heating of thermal power plant of the present invention
The connection diagram of method.
Accompanying drawing number：
1. the reverse osmosis deaslination of 5. water quality adjustment equipment of hydrophobic 3. incubator, 4. delivery pump of Wastewater Form Circulating Cooling Water 2. 6. is filled
Put the heat user of 7. register, 8. level control valve, 9. 10. auxiliary steam of auxiliary steam flow amount mediation valve 11..
Specific embodiment
Refer to shown in Fig. 1, it is characterised in that collect thermal power plant and have hydrophobic the 2 of uniform temperature to deliver to attemperater 3, then
Attemperater 3, Jing is delivered to from Wastewater Form Circulating Cooling Water 1 (intake is arranged on condenser and is exported between cooling tower on pipeline) water intaking
Cross delivery pump 4 and deliver to water quality adjustment equipment 5 and (include the equipment such as filter screen and pH value adjuster, concrete equipment is according to water quality requirement
It is fixed), after being adjusted to water quality, osmosis filtration desalter 6 is entered back into, carry out into register 7 through the water of desalination
Temperature adjustment, is adjusted by auxiliary steam flow amount mediation valve 8 with thermal power plant's auxiliary steam 10 to heat supply temperature, to after temperature required to heat
User 11 carries out heat supply, and wherein level control valve 9 is adjusted to the incubator water yield, and auxiliary steam 10 is entered Jing after register
Attemperater 3, with the water of attemperater 3 Hybrid Heating is carried out, higher dense of a small amount of saliferous of the abjection of Reverse Osmosis Desalination Process Equipment 6
Salt solution enters ash-slag disposal system or coal yard, for ash, slag or coal yard damping.
Claims (1)
1. the energy-conserving and environment-protective heat supply method of a kind of thermal power plant, it is characterised in that：By collect thermal power plant discard containing certain temperature
Hydrophobic and Wastewater Form Circulating Cooling Water, the required heat supply water yield is reached, through water treatment, then with the auxiliary steam of thermal power plant
Temperature adjustment is carried out, most backward city and industrial park carry out heat supply, the strong brine that a small amount of saliferous of abjection is higher enters grey slag system
System or coal yard, for ash, slag or coal yard damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092465.8A CN106642272A (en) | 2017-02-21 | 2017-02-21 | Energy-saving and environment-friendly heat supply method for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092465.8A CN106642272A (en) | 2017-02-21 | 2017-02-21 | Energy-saving and environment-friendly heat supply method for thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106642272A true CN106642272A (en) | 2017-05-10 |
Family
ID=58845822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710092465.8A Pending CN106642272A (en) | 2017-02-21 | 2017-02-21 | Energy-saving and environment-friendly heat supply method for thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106642272A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815704A (en) * | 1981-07-22 | 1983-01-29 | Hitachi Ltd | Equipment for removing iron oxides from feed water of power plant |
| CN201074870Y (en) * | 2007-06-15 | 2008-06-18 | 淄博建龙化工有限公司 | Thermoregulation type device for supplying heat using sulfuric acid production low temperature waste heat |
| CN101935118A (en) * | 2010-08-16 | 2011-01-05 | 刘春喜 | Process for purifying and recycling hot water by membrane method |
| CN203131794U (en) * | 2013-03-19 | 2013-08-14 | 邵继辉 | Highly efficient system for recycling heat energy and water resource of sewage continuously discharged from boiler |
| CN206973666U (en) * | 2017-02-21 | 2018-02-06 | 湖南华电常德发电有限公司 | A kind of energy-conserving and environment-protective heating plant of thermal power plant |
| KR102163167B1 (en) * | 2020-05-22 | 2020-10-08 | 민경휘 | Heating System using Waste Heat |
-
2017
- 2017-02-21 CN CN201710092465.8A patent/CN106642272A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815704A (en) * | 1981-07-22 | 1983-01-29 | Hitachi Ltd | Equipment for removing iron oxides from feed water of power plant |
| CN201074870Y (en) * | 2007-06-15 | 2008-06-18 | 淄博建龙化工有限公司 | Thermoregulation type device for supplying heat using sulfuric acid production low temperature waste heat |
| CN101935118A (en) * | 2010-08-16 | 2011-01-05 | 刘春喜 | Process for purifying and recycling hot water by membrane method |
| CN203131794U (en) * | 2013-03-19 | 2013-08-14 | 邵继辉 | Highly efficient system for recycling heat energy and water resource of sewage continuously discharged from boiler |
| CN206973666U (en) * | 2017-02-21 | 2018-02-06 | 湖南华电常德发电有限公司 | A kind of energy-conserving and environment-protective heating plant of thermal power plant |
| KR102163167B1 (en) * | 2020-05-22 | 2020-10-08 | 민경휘 | Heating System using Waste Heat |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |