CN108870507A - A kind of big temperature-difference central heating system using double condensers - Google Patents
A kind of big temperature-difference central heating system using double condensers Download PDFInfo
- Publication number
- CN108870507A CN108870507A CN201810285432.XA CN201810285432A CN108870507A CN 108870507 A CN108870507 A CN 108870507A CN 201810285432 A CN201810285432 A CN 201810285432A CN 108870507 A CN108870507 A CN 108870507A
- Authority
- CN
- China
- Prior art keywords
- condenser
- steam
- heat
- level
- river
- 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
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
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- 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
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B7/00—Combinations of two or more condensers, e.g. provision of reserve condenser
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/126—Absorption type heat pumps
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/06—Heat exchangers
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention relates to a kind of big temperature-difference central heating system using double condensers, involved system and device is made of steam turbine, absorption heat pump, level-one condenser, second level condenser, steam water heat exchanger, big temperature difference heat-exchange system and various water pumps and pipeline.Using double condenser cascaded structures, level-one condenser absorbs exhaust steam residual heat, and the exhaust steam residual heat absorbed is applied in urban heat supplying by absorption heat pump, steam water heat exchanger, big temperature difference heat-exchange system；Level-one condenser is limited by actual condition, whole steam exhaust can not be carried out cooling condensation, and to guarantee power plants generating electricity efficiency, cooling by remaining steam exhaust after level-one condenser using second level condenser, second level condenser is using river, river, lake, seawater as cooling water.Double condenser structures not only realize the high efficiente callback to exhaust steam residual heat, will also be used for cooling river, river, lake, seawater and are isolated with absorption type heat pump system, it is therefore prevented that the corrosiveness that river, river, lake, seawater equip absorption heat pump and other systems.
Description
Technical field
The invention belongs to improve efficiency of energy utilization field, it is related to a kind of big temperature difference central heating system, it is solidifying using two groups
Vapour device structure can effectively recycle the exhaust steam residual heat of power plant steam turbine discharge.
Background technique
With the continuous growth of urban size, city heat supply demand is also being continuously improved.In cogeneration of heat and power, cold end loss
It is the maximum loss of power plant thermal system, turbine discharge loss and boiler exhaust heat loss are all for thermal power plant
Waste heat discharge then constitutes huge energy waste for building and heating.If exhaust steam in steam turbine waste heat can be recycled to be used for
City heat supply will greatly improve the heat capacity and efficiency of energy utilization of power plant.
In area of bordering on the sea, steam power plant's adaptation to local conditions, using seawater receive steam exhaust in latent heat, the seawater with latent heat again as
The low-temperature heat source of absorption heat pump achievees the purpose that waste heat recycles.But seawater contains higher salinity, and is rich in minerals, meeting
It is hot standby to pipeline and absorption heat pump to cause to corrode, seriously affect the safe and stable operation of system.
Summary of the invention
For the cooling steam power plant of river, river, lake, seawater, technological transformation is carried out, solves river, river, lake, seawater to pipeline
And the etching problem of heating equipment.Simultaneously steam turbine discharge steam exhaust in contain a large amount of latent heats of vaporization, using absorption heat pump without
The problem of method all recycles, the present invention provides what a set of waste heat recycling using double condenser structures coupled big temperature difference heating to be
System.
The problems such as the effective recycling for solving turbine exhaust exhaust steam residual heat and river, river, lake, seawater to equipment corrosion, this
System provides a set of effective scheme.
The present invention is that technical solution used by solving the problems, such as is：System is by steam turbine, generator, absorption heat pump, big
Temperature difference heat-exchange system, level-one condenser, second level condenser, steam water heat exchanger, flow regulator, various water pumps and pipeline group
At.
1, the steam exhaust of steam turbine end is emitted into level-one condenser and is condensed, and the condensed water formed after steam exhaust condensation is back to
Boiler heating, remaining low-temperature steam exhaust are input to second level condenser and continue to cool down；
2, second level condenser is river, river, lake, the cooling condenser of seawater, and condenser piping is titanium alloy material, corrosion-resistant,
So tube side is walked in river, river, lake, seawater, low-temperature steam exhaust walks condenser shell side；Boiler heating is back to after low-temperature steam exhaust condensation；
3, the middle section steam extraction extracted from steam turbine is divided into two parts, respectively as steam water heat exchanger and absorption heat pump
Driving heat source；The cooling water water outlet with Low Temperature Thermal flowed out from level-one condenser is sequentially input to absorption heat pump, vapour-water
Heat exchanger carries out second level heating, is input to great temperature difference heat supply system as driving heat source after heating, is added for secondary network return water
Heat is input to absorption heat pump as low-temperature heat source after the completion of heating and exchanges heat, and absorption heat pump may also function as temperature adjusting
Effect, being input to level-one condenser as cooling water water inlet after heat exchange cooling is that exhaust steam in steam turbine cools down, and completes circulation.
4, the secondary network return water from user side is input to big temperature difference heat-exchange system, supplies water after the completion of heat exchange as secondary network
Back to user side.
The beneficial effects of the invention are as follows：
1, the pipe network supply backwater temperature difference that heats increases；
2, double condensers can isolate seawater, prevent seawater to the corrosiveness of absorption heat pump and other heating equipments,
Maintenance system safe and stable operation；
3, level-one condenser return water temperature can be controlled to adjust, realizes and efficiently returns turbine exhaust heat, improve energy
Source utilization rate.
Detailed description of the invention
Fig. 1 is principle of the invention figure；
In figure：1. steam turbine, 2. user sides, 3. absorption heat pumps, 4. steam water heat exchangers, 5. level-one condensers, 6. second levels
Condenser, 7. big temperature difference heating systems, 8. primary net return water, 9. primary nets supply water, and 10. secondary network return water, 11. secondary networks supply
Water, the water outlet of 12. cooling waters, the water inlet of 13. cooling waters.
Specific embodiment
In steam power plant, steam turbine (1) high temperature steam drive electrical power generators；Then the middle section of steam turbine (1) is taken out
Vapour is divided into two parts, participates in exchanging heat respectively as the power source of steam water heat exchanger (4) and absorption heat pump (3) unit；
The primary net return water (8) flowed back to from big temperature difference heat-exchange system (7) is delivered in absorption heat pump (3), as heat pump
Low-temperature heat source, through heat exchange cooling after be delivered to level-one condenser (5) tube side, for the steamer for flowing through level-one condenser (5) shell side
Machine (1) steam exhaust carries out cooling condensation, cooling water water outlet (12) input absorption heat pump (3) after cooling water and steam exhaust heat exchange, warp
(9) are supplied water as primary net after heating.
In level-one condenser (5), the condensed water formed after steam exhaust condensation is back to boiler heating, remaining low-temperature steam exhaust input
Continue to cool down to second level condenser (6)；Second level condenser (6) is river, river, lake, the cooling condenser of seawater, condenser piping
Corrosion-resistant for titanium alloy material, so tube side is walked in river, river, lake, seawater, low-temperature steam exhaust walks condenser shell side；Low-temperature steam exhaust condensation
After be back to boiler heating；
In absorption heat pump (3) unit, a part of middle section steam extraction from steam turbine (1) is as power source, from big temperature
The primary net return water (8) that poor heat-exchange system (7) flows into is used as low-temperature heat source, and collective effect is that cooling water is discharged (12) heating,
Steam water heat exchanger (4) are delivered to as primary net water supply (9) after heating and carry out second level heating, come from a part of steam turbine (1)
Middle section steam extraction is as steam water heat exchanger (4) power source.
Primary net water supply (9) after heating is input to big temperature difference heat-exchange system (7), participates in exchanging heat as driving heat source, most
It is input to absorption heat pump (3) as primary net return water (8) eventually, completes circulation.Secondary network return water (10) exchanges heat through the big temperature difference
It unites after (7) heating, is input to user side (2) directly as secondary network water supply (11).
Claims (2)
1. a kind of big temperature-difference central heating system using double condensers, it is characterised in that：The steam exhaust of steam turbine end is emitted into one
Grade condenser is condensed, and the condensed water formed after steam exhaust condensation is back to boiler heating, and remaining low-temperature steam exhaust is input to second level
Condenser continues to cool down；Second level condenser is river, river, lake, the cooling condenser of seawater, and condenser piping is titanium alloy material
Matter, corrosion-resistant, so tube side is walked in river, river, lake, seawater, low-temperature steam exhaust walks condenser shell side；Pot is back to after low-temperature steam exhaust condensation
Stove heating.
2. a kind of big temperature-difference central heating system using double condensers according to claim 1, it is characterised in that：From
The middle section steam extraction extracted in steam turbine is divided into two parts, respectively as the driving heat source of steam water heat exchanger and absorption heat pump；From
The cooling water water outlet with Low Temperature Thermal of level-one condenser outflow, which is sequentially input to absorption heat pump, steam water heat exchanger, carries out two
Grade heating, is input to great temperature difference heat supply system as driving heat source after heating, is heated for secondary network return water, after the completion of heating
Absorption heat pump is input to as low-temperature heat source to exchange heat, and is input to level-one condenser as cooling water water inlet after heat exchange cooling
Cool down for exhaust steam in steam turbine, completes circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285432.XA CN108870507A (en) | 2018-04-03 | 2018-04-03 | A kind of big temperature-difference central heating system using double condensers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285432.XA CN108870507A (en) | 2018-04-03 | 2018-04-03 | A kind of big temperature-difference central heating system using double condensers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108870507A true CN108870507A (en) | 2018-11-23 |
Family
ID=64326605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810285432.XA Pending CN108870507A (en) | 2018-04-03 | 2018-04-03 | A kind of big temperature-difference central heating system using double condensers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108870507A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| CN101619662A (en) * | 2009-08-14 | 2010-01-06 | 清华大学 | Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way |
| CN102297467A (en) * | 2011-08-19 | 2011-12-28 | 清华大学 | Centralized heat supply system for low-temperature backwater |
| CN104481611A (en) * | 2014-12-26 | 2015-04-01 | 北京中科华誉能源技术发展有限责任公司 | Dead steam waste heat recovery system based on large temperature difference heat exchange technology |
| CN108518719A (en) * | 2018-03-30 | 2018-09-11 | 大连葆光节能空调设备厂 | A kind of big temperature-difference central heating system using double condensers |
-
2018
- 2018-04-03 CN CN201810285432.XA patent/CN108870507A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| CN101619662A (en) * | 2009-08-14 | 2010-01-06 | 清华大学 | Method for recovering waste heat of thermal power plant and heating and supplying heat to hot water in a stepping way |
| CN102297467A (en) * | 2011-08-19 | 2011-12-28 | 清华大学 | Centralized heat supply system for low-temperature backwater |
| CN104481611A (en) * | 2014-12-26 | 2015-04-01 | 北京中科华誉能源技术发展有限责任公司 | Dead steam waste heat recovery system based on large temperature difference heat exchange technology |
| CN108518719A (en) * | 2018-03-30 | 2018-09-11 | 大连葆光节能空调设备厂 | A kind of big temperature-difference central heating system using double condensers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100507375C (en) | Large temperature-difference central heating system | |
| CN108317579A (en) | A kind of cogeneration of heat and power fully-condensed type heat recovery technology | |
| KR101434908B1 (en) | System for producing hot heat source or electric power using waste heat, and method for controlling therof | |
| CN201181044Y (en) | Large-temperature difference central heating unit | |
| CN103017236B (en) | The power plant heat of condensation is recycled and heating system | |
| CN207094731U (en) | A kind of cold end is exhaust heat stepped to utilize heating system | |
| CN109579112A (en) | A kind of thermal power plant unit thermoelectricity decoupled system and its operation method | |
| CN204757076U (en) | Steam power plant's heat supply hydrophobic waste heat recovery system of drawing gas | |
| CN106523053A (en) | Solar heat and thermal power plant coupling power generation and heat storage energy combination system and realization method | |
| CN108518719A (en) | A kind of big temperature-difference central heating system using double condensers | |
| CN108317504A (en) | A kind of cogeneration of heat and power heat recovery technology | |
| CN101109536A (en) | Waste heat recovery type thermoelectricity cold jointly-supplying technology | |
| CN102486317A (en) | Heat supplying method of cooling water residual heat recycling energy-saving system of thermal power plant | |
| CN209540991U (en) | A kind of thermal power plant unit thermoelectricity decoupled system | |
| CN109869205A (en) | It is a kind of for the heat accumulation of cogeneration units, power generation and heating system | |
| CN101109539A (en) | Method for enlarging thermoelectricity co-generating heat supplying scale | |
| CN108870507A (en) | A kind of big temperature-difference central heating system using double condensers | |
| RU2194166C2 (en) | Cogeneration station power unit | |
| KR101425962B1 (en) | Binary Geothermal Power Generation System | |
| CN204555420U (en) | The comprehensive gradient utilization system of steam power plant's used heat | |
| CN108662650A (en) | A kind of residual neat recovering system of double condensers | |
| CN211502954U (en) | Heating and cooling recycling system based on steam condensate of heat exchange station | |
| CN110793087B (en) | Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage | |
| CN102997311A (en) | Power plant condensing heat recovery heat supply system | |
| CN112489843A (en) | Nuclear power plant waste heat utilization system and nuclear power plant waste heat utilization method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20181123 |
|
| WD01 | Invention patent application deemed withdrawn after publication |