CN101358547A - Condensed water circulating cooling energy-conserving and emission-cutting technology - Google Patents
Condensed water circulating cooling energy-conserving and emission-cutting technology Download PDFInfo
- Publication number
- CN101358547A CN101358547A CN 200810079356 CN200810079356A CN101358547A CN 101358547 A CN101358547 A CN 101358547A CN 200810079356 CN200810079356 CN 200810079356 CN 200810079356 A CN200810079356 A CN 200810079356A CN 101358547 A CN101358547 A CN 101358547A
- Authority
- CN
- China
- Prior art keywords
- water
- emission
- conserving
- condensation
- 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.)
- Pending
Links
Images
Classifications
-
- 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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a condensate water circulation cooling energy-saving emission-reduction technology. Condensate water as well as sprayed and atomized steam water are adopted to be directly mixed with heat exchange condensation at a high temperature end in the exhaust orifice of a steam turbine; the condensate water after heat exchange condensation flows into a condensate water collection well, is pumped into the hot pump of a water source by a condensate water pump, returned to the high temperature end in the exhaust orifice for spraying and atomizing to form cooling circulation after being cooled by the hot pump of the water source; the afterheat is transferred to a boiler simultaneously when being cooled by the hot pump of the water source to form afterheat circulation for the water consumption of water or other different water qualities. The technology has a plurality of functions of energy saving, water saving, environment protection, running cost reducing, efficiency improving, etc. The technology realizes the cooling circulation and afterheat circulation in particular and gains new breakthrough on the aspects of improving the heat exchange effect, increasing the vacuity of a machine set, improving the output, the afterheat recycling and utilizing as well as energy saving and emission reducting; besides, the environment protection and the social benefit are remarkable.
Description
Technical field
The present invention relates to a kind of condensed water circulating cooling energy-conserving and emission-cutting technology, be mainly used in the thermoelectricity field.
Background technique
The shortage of water resources, lack of energy and environmental pollution seriously are present ubiquitous phenomenons.The water source of 21 century, the energy and environmental problem be world's question of common concern especially.In recent years, along with rapid development of modern science and technology, the low temperature heat energy of always failing up to now effectively to utilize is subject to people's attention day by day, in the low temperature heat energy of utilization not yet in effect still, the thermal power plant low temperature heat energy is exactly one of them.
Thermal power plant index type building circulating water cooling tower swallows clouds and blows out fog throughout the year, overwhelming majority heat is discharged in the atmosphere through cooling tower in vain, this had both caused the waste of low temperature heat energy and the loss of valuable water resources, also environment had been caused thermo-pollution, had also increased SO simultaneously
2, CO
2, the discharging of flue dust, lime-ash is to the pollution of environment, the higher ultra supercritical unit of generating efficiency is also less than 50%, and general medium temperature and medium pressure and High Temperature High Pressure generating efficiency have only 24.5% and 30.5% respectively, the loss ratio of heat energy is higher than utilization ratio, the utilization ratio of water also is no more than 40%, the key that this shows the thermal power plant energy-saving and emission-reduction is the recycling of waste heat, and potential economy, society and environmental benefit are huge.
Condensed water circulating cooling energy-conserving and emission-cutting technology of the present invention can improve generatine set heat efficiency effectively, realize heat recovery reducing the discharging of greenhouse gases efficiently, realizes energy-saving and emission-reduction.
Summary of the invention
A kind of condensed water circulating cooling energy-conserving and emission-cutting technology.I.e. temperature end in the steam turbine exhaust pipe mouth, adopt the direct mixed heat exchange of water of condensation spray atomizing carbonated drink to condense, water of condensation after heat exchange is condensed flows into the water of condensation sump, send into water resource heat pump by condensate pump, after water resource heat pump freezes, be transmitted back to temperature end spray atomizing formation cool cycles in the exhaust pipe mouth, in the time of the water resource heat pump refrigeration waste heat changed to the water formation heat recovery of boiler feed water or other different qualities recycling.
The technological progress that the present invention obtains: energy-conservation, water saving, environmental protection and reduction operating cost such as raise the efficiency at multiple function, particularly improve the heat exchange effect, increase unit degree of vacuum improve exert oneself, heat recovery, aspects such as energy-saving and emission-reduction have obtained new breakthrough, economy, environmental protection and obvious social benefit are embodied in:
1, Synergistic and energy-saving
Temperature end in the steam turbine exhaust pipe mouth adopts the atomizing of water of condensation spray, and the direct mixed heat exchange of carbonated drink cool cycles has improved the heat exchange effect greatly, makes degree of vacuum improve the increase of exerting oneself, and can improve more than 2% by unit output; When realizing cool cycles, water source heat pump to exchange heat is given boiler feed water, and the boiler feed water water temperature is raise, and has reduced low-pressure heater and oxygen-eliminating device to the drawing gas of steam turbine, and the power of steam turbine increases generating efficiency and improves, and has realized the exhaust heat recovery power generation circulation; The exhaust heat recovery power generation utilization ratio reaches about 10%, and gross coal consumption rate reduces about 10%.Heating phase heat recovery amount is bigger, and energy-saving effect is more remarkable.
2, water saving subtracts dirt
Adopt water resource heat pump closed loop cool cycles, reduced the evaporation loss of tower cooler, recirculated cooling water reduces 10%; The evaporation loss of tower cooler has been avoided in the heat recovery of heating phase, and water-saving result is more remarkable.
3, reduce discharging environmental protection
The raising of unit efficiency significantly reduces gross coal consumption rate, magnanimously reduced the coal-fired SO that causes
2, CO
2, the discharging of flue dust, lime-ash is to the pollution of environment; The minimizing of water consumption has reduced the pollution of discharge of wastewater to the ambient water system.
4, reducing operating cost enhances productivity
Condensed water circulating cooling energy-conserving and emission-cutting technology has improved the heat exchange effect greatly, and the cooling water intensification amplitude and the tubulation circulation type of cooling are relatively raised the efficiency more than 3 times, have improved the degree of vacuum of unit, have increased and have exerted oneself.
Description of drawings
Fig. 1, for Air-cooled Unit process flow diagram of the present invention
Fig. 2, for the clammy unit process flow diagram of the present invention
Fig. 3, for heat recovery of the present invention in the heating system process flow diagram
Fig. 4, for low temperature condensing water atomization cooling process figure of the present invention
Fig. 5, be water resource heat pump series connection technique for applying flow chart of the present invention
Embodiment
With the accompanying drawing is that example further describes the present invention
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 are embodiment of the invention process flow diagram
Condensed water circulating cooling energy-conserving and emission-cutting technology (as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4), temperature end in the steam turbine exhaust pipe mouth, adopt the direct mixed heat exchange of water of condensation spray atomizing carbonated drink to condense, water of condensation after heat exchange is condensed flows into the water of condensation sump, send into water resource heat pump by condensate pump, be transmitted back to after water resource heat pump refrigeration that the atomizing of temperature end spray forms cool cycles in the exhaust pipe mouth, water resource heat pump is changed to forming heat recoveries with the heating of the boiler feed water of water quality or different quality and other waters waste heat recycling simultaneously.
Solve the technological scheme that its technical problem adopted among the present invention
1, adopt water of condensation or desalination supplementing water after low temperature, water resource heat pump freeze to spray atomizing (as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4) in steam turbine exhaust pipe mouth temperature end, the direct mixed heat exchange of carbonated drink is condensed, set heat exchange efficient is significantly improved, the cooling water intensification amplitude and the tubulation circulation type of cooling are relatively raised the efficiency more than 3 times, make unit degree of vacuum improve the increase of exerting oneself, boiler feed temperature is raise, reduce the drawing gas to steam turbine of low-pressure heater; Adopt in addition with the water of condensation or the desalination supplementing water of the equal water quality of the feed water system of boiler and cool off, can not cause harmful effects such as corrosion and scaling the feed water system of boiler in the atomizing of steam turbine exhaust pipe mouth temperature end spray.
2, the demineralized water supplementing water enters the temperature end spray atomizing in water pump is sent into the steam turbine exhaust pipe mouth of the water of condensation of cooling water header tank after refrigeration and mends (as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4), the demineralized water supplementing water is because water temperature is low, sending into the atomizing of the interior temperature end spray of steam turbine exhaust pipe mouth earlier mends, can further make the vacuum of unit improve the increase of exerting oneself, the boiler feedwater temperature is raise, reduce low-pressure heater to the drawing gas of steam turbine, also can adopt and mend mode respectively.
3, adopt the water resource heat pump that has refrigeration and heat two-way effect, realize that the cool cycles and the heat recovery that intersect circulate, promptly utilize refrigerating function to realize that water of condensation forms cool cycles, utilize heat-production functions to realize heat recovery circulation (as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4).
The water of condensation cool cycles.Temperature end in the steam turbine exhaust pipe mouth, adopt low temperature, water of condensation after the water resource heat pump refrigeration or desalination supplementing water are in the atomizing of steam turbine exhaust pipe mouth temperature end spray, the direct mixed heat exchange of carbonated drink is condensed, water of condensation after heat exchange is condensed flows into the water of condensation sump, take out the part water of condensation with condensate pump from the water of condensation sump, send into the refrigeration end of water resource heat pump, freeze when temperature required (15-35 ℃) send into the cooling water water tank, with the temperature end spray atomizing in water pump is sent into the steam turbine exhaust pipe mouth of desalination supplementing water, the direct mixed heat exchange of carbonated drink is condensed, water of condensation after heat exchange is condensed flows into the water of condensation sump, sends into the water source heat pump to exchange heat refrigeration by condensate pump again and forms the water of condensation cool cycles.
The heat recovery circulation.Promptly adopt the water of condensation water pump to take out the part water of condensation from the water of condensation sump, send into the end that heats of water resource heat pump, heat temperature and can not get (90 ℃) when temperature required, deliver to oxygen-eliminating device through the low-pressure heater heating, when heating temperature, water of condensation obtains (90 ℃) when temperature required, can directly deliver to oxygen-eliminating device and carry out recirculation, also can deliver to oxygen-eliminating device, realize the heat recovery circulation by low-pressure heater.
4, adopt water resource heat pump that the heating system of different quality is heated.Because the restriction of the boiler feed water water yield and temperature, heat energy recycle accounts for 10% of waste heat total emission volumn, for increasing the condensed water circulating cooling energy-conserving and emission-cutting amount, can adopt water resource heat pump that the heating system of different quality is heated (as shown in Figure 3), take out the part water of condensation by the water of condensation water pump from the water of condensation sump, send into the refrigeration end of water resource heat pump, freeze when temperature required (15-35 ℃) send into the cooling water water tank, with the temperature end spray atomizing in water pump is sent into the steam turbine exhaust pipe mouth of desalination supplementing water, the direct mixed heat exchange of carbonated drink is condensed, water of condensation after heat exchange is condensed flows into the water of condensation sump and forms water of condensation circulation cooling in parallel, water resource heat pump is given heating system with thermal power transfer simultaneously, heat perhaps for the water of other different qualities, form the waste heat circulation.
5, the mode of using the water resource heat pump series connection satisfies the requirement of cooling and heating water temperature, parallel way satisfies the requirement of the recirculated cooling water water yield and the heat recovery water yield, according to the requirement selection series parallel connection quantity of the different temperatures and the water yield and the water resource heat pump of different model, make maximization of economic benefit.
About about 7 ℃ of water resource heat pump unit cooling and heating amplitude, can not get (90 ℃) when temperature required in order to satisfy to freeze when temperature required (15-35 ℃) and to heat temperature, water resource heat pump satisfies the cooling and heating water temperature by serial fashion and requires (as shown in Figure 5), water resource heat pump divides high temperature (95 ℃), middle high temperature (80 ℃) and big temperature difference water resource heat pump, the water resource heat pump of different series connection sum of series different models is selected in requirement according to different temperatures, makes maximization of economic benefit.
Adopt the water resource heat pump parallel way to satisfy water yield requirement, the single-machine capacity difference, the water of condensation water yield also has nothing in common with each other, small-sized unit both can satisfy the requirement of the water temperature water yield by the mode that adopts plural serial stage, large-scale unit not only will adopt the plural serial stage mode to satisfy the water temperature demand, also need the parallel connection of a plurality of plural serial stage mode combining unit, satisfy the requirement of the recirculated cooling water water yield.
6, adopt high low-temperature condensate sump to separate collection and deposit low-temperature condensate and send in the steam turbine exhaust pipe mouth temperature end spray atomizing heat exchange by condensate pump and condense, realize the series connection Synergistic and energy-saving (as shown in Figure 4) that condenses.
Adopting high low-temperature condensate sump to separate collection deposits, promptly establish the low-temperature condensate sump at tubulation vapour condenser (or air cooling condenser), in steam turbine exhaust pipe mouth temperature end, set up and have independent condensed water in high temperature sump spray atomising device, the water of condensation of low-temperature condensate sump is delivered to spray atomising device by condensate pump with independent condensed water in high temperature sump, atomize to the temperature end heat exchange by the low-temperature end spray, again with the whereabouts heat exchange of high temperature steam flow, make the water of condensation heat exchange back of heating up of fully absorbing heat flow into the condensed water in high temperature sump, send into water resource heat pump by condensate pump and carry out recirculation, or directly give low-pressure heater and circulate; The direct mixed heat exchange of spray atomizing carbonated drink by low-temperature condensate is condensed again, improves the degree of vacuum and the boiler feed temperature of unit fast, realizes the heat recovery Synergistic and energy-saving.
Air-cooled Unit is easy to realize, in steam transmitting pipe mouth place temperature end, increases spray atomising device and condensed water in high temperature sump, both can realize that water of condensation circulation cooling and boiler feed water heated up; The clammy unit of tubulation needs to set up before the vapour condenser and has independent condensed water in high temperature sump spray atomising device, and independent condensed water in high temperature sump spray atomising device can be made of one with vapour condenser, but also split combination.
Claims (10)
1, a kind of condensed water circulating cooling energy-conserving and emission-cutting technology, i.e. temperature end in the steam turbine exhaust pipe mouth, adopt the direct mixed heat exchange of water of condensation spray atomizing carbonated drink to condense, water of condensation after heat exchange is condensed is transmitted back to temperature end spray atomizing formation cool cycles in the exhaust pipe mouth after the water resource heat pump refrigeration, water resource heat pump is changed waste heat to boiler feed water and formed the heat recovery circulation simultaneously.
2, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1 is characterized in that: adopt water of condensation or desalination supplementing water after low-temperature condensate, water resource heat pump freeze to condense in the spray atomizing heat exchange of steam turbine exhaust pipe mouth high temperature place.
3, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 2 is characterized in that: the demineralized water supplementing water enters the temperature end spray atomizing in water pump is sent into the steam turbine exhaust pipe mouth of the water of condensation of cooling water header tank after refrigeration and mends.
4, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1, it is characterized in that: adopt the water resource heat pump that has refrigeration and heat two-way effect, utilize refrigerating function to realize that water of condensation forms cool cycles, utilize heat-production functions to realize the heat recovery circulation.
5, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1 is characterized in that: adopt water resource heat pump that heating system and other waters of different quality are heated.
6, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1, it is characterized in that: the mode of using the water resource heat pump series connection satisfies the requirement of cooling and heating water temperature, uses the requirement that parallel way satisfies the recirculated cooling water water yield and the heat recovery water yield.
7, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1 is characterized in that: adopt high low-temperature condensate sump to separate collection and deposit, low-temperature condensate is sent in the steam turbine exhaust pipe mouth temperature end spray atomizing heat exchange by condensate pump and is condensed.
8, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1 is characterized in that: boiler feed water is delivered to oxygen-eliminating device or is directly delivered to oxygen-eliminating device and carry out recirculation through low-pressure heater heating after water source heat pump heating.
9, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1 is characterized in that: water of condensation flows into the water of condensation sump and is sent into water resource heat pump or directly delivered to low-pressure heater by condensate pump.
10, condensed water circulating cooling energy-conserving and emission-cutting technology according to claim 1 is characterized in that: spray atomizing is atomized to the temperature end heat exchange by the low-temperature end spray, again with the whereabouts heat exchange of high temperature steam flow, the water of condensation heat exchange of fully absorbing heat is heated up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810079356 CN101358547A (en) | 2008-09-08 | 2008-09-08 | Condensed water circulating cooling energy-conserving and emission-cutting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810079356 CN101358547A (en) | 2008-09-08 | 2008-09-08 | Condensed water circulating cooling energy-conserving and emission-cutting technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101358547A true CN101358547A (en) | 2009-02-04 |
Family
ID=40331122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810079356 Pending CN101358547A (en) | 2008-09-08 | 2008-09-08 | Condensed water circulating cooling energy-conserving and emission-cutting technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101358547A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865491A (en) * | 2010-06-23 | 2010-10-20 | 赵德明 | Method for realizing energy saving and emission reduction by utilizing waste heat in power plant circulating cooling water |
| CN102261639A (en) * | 2011-06-02 | 2011-11-30 | 杨贻方 | Wind energy steam boiler set |
| CN102261768A (en) * | 2011-06-02 | 2011-11-30 | 杨贻方 | Heat pump special for power station |
| CN101696643B (en) * | 2009-10-30 | 2012-09-19 | 北京联合优发能源技术有限公司 | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof |
| CN102878824A (en) * | 2011-07-12 | 2013-01-16 | 张贵祥 | Energy-saving heat exchange system with direct vapor-water mixing |
| CN111121356A (en) * | 2019-11-19 | 2020-05-08 | 万洲电气股份有限公司 | Industrial circulating cooling water energy-saving system and method based on central cooling system |
| CN113860414A (en) * | 2021-09-02 | 2021-12-31 | 华电湖北发电有限公司武昌热电分公司 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
-
2008
- 2008-09-08 CN CN 200810079356 patent/CN101358547A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696643B (en) * | 2009-10-30 | 2012-09-19 | 北京联合优发能源技术有限公司 | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof |
| CN101865491A (en) * | 2010-06-23 | 2010-10-20 | 赵德明 | Method for realizing energy saving and emission reduction by utilizing waste heat in power plant circulating cooling water |
| CN102261639A (en) * | 2011-06-02 | 2011-11-30 | 杨贻方 | Wind energy steam boiler set |
| CN102261768A (en) * | 2011-06-02 | 2011-11-30 | 杨贻方 | Heat pump special for power station |
| CN102878824A (en) * | 2011-07-12 | 2013-01-16 | 张贵祥 | Energy-saving heat exchange system with direct vapor-water mixing |
| CN111121356A (en) * | 2019-11-19 | 2020-05-08 | 万洲电气股份有限公司 | Industrial circulating cooling water energy-saving system and method based on central cooling system |
| CN113860414A (en) * | 2021-09-02 | 2021-12-31 | 华电湖北发电有限公司武昌热电分公司 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106765448A (en) | A kind of energy-saving heating system for reducing heat supply return water temperature | |
| CN106705185A (en) | Energy-saving heat supply system with function of reducing temperature of heat supply return water | |
| CN101358547A (en) | Condensed water circulating cooling energy-conserving and emission-cutting technology | |
| CN110469835A (en) | Thermoelectricity decoupled system and operation method based on absorption heat pump and thermal storage equipment | |
| CN206352906U (en) | A kind of exhaust steam direct-absorption type lithium bromide heat pump system | |
| CN202521938U (en) | Heat pump system and drying system | |
| CN204301356U (en) | Sugar plant circulation cooling water system waste heat hydraulic recovery energy saver | |
| CN103075841A (en) | Novel low-temperature combined cooling, heating and power (CCHP) system based on heat pump | |
| CN103058298A (en) | Seawater desalinization and heating-cooling combined supply system driven by low-level heat source | |
| CN103322725A (en) | Heat pump system, drying system, and respective method | |
| CN102797524B (en) | Medium-and-low-temperature waste-heat utilization cooling/power combination system | |
| CN102878824A (en) | Energy-saving heat exchange system with direct vapor-water mixing | |
| CN101464072B (en) | Steam-exhaust coagulation heat recovery system of coal-fired power plant | |
| CN103322727A (en) | Heat pump system as well as drying system and method | |
| CN113154698A (en) | System for producing steam by utilizing solar energy and waste heat and steam production method | |
| CN111911990B (en) | Remote absorption type cooling and heating system based on solution energy storage | |
| CN109798696B (en) | High-temperature heat pump system for recovering waste heat of industrial wastewater by using water as working medium and control method thereof | |
| CN110526318B (en) | Comprehensive utilization method and system for energy of smoke whitening coupling sea water desalination | |
| CN102809144B (en) | Device and method for using two-stage jet absorption heat pump to improve thermal cycle efficiency | |
| CN204703967U (en) | A kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply | |
| CN106219650B (en) | Low-quality waste heat utilization system of steel plant and use method thereof | |
| CN102901264A (en) | Triple-effect vapor absorption refrigeration system | |
| CN203731737U (en) | Double-jetting pump-free cycle refrigeration system | |
| CN116294425A (en) | Blast furnace slag flushing water and exhaust steam waste heat recovery cold and hot combined supply system | |
| CN112284145B (en) | Waste heat utilization device and method for metallurgical cooling tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090204 |