CN106678769A - Waste heat recycling system in power station - Google Patents
Waste heat recycling system in power station Download PDFInfo
- Publication number
- CN106678769A CN106678769A CN201710094958.5A CN201710094958A CN106678769A CN 106678769 A CN106678769 A CN 106678769A CN 201710094958 A CN201710094958 A CN 201710094958A CN 106678769 A CN106678769 A CN 106678769A
- Authority
- CN
- China
- Prior art keywords
- lime set
- collecting tank
- heating
- pump
- outlet
- 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.)
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Classifications
-
- 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 or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/50—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers for draining or expelling water
-
- 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 or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention provides a waste heat recycling system in a power station. The system mainly collects hydrophobic condensation liquid and periodical continuous pollution discharging water of a boiler air heater, and original low-pressure steam is replaced to conduct heating and heating supply for heating water of a 1# heat exchanging station and a 2 # heat exchanging station; and low-temperature condensation liquid discharging out of the heat exchanging stations enter a chemical deaerator and a circulation pool for recycling correspondingly, and meanwhile, a water-steam ejector is additionally installed at the top of a periodical continuous discharging expanding container to recover secondary flash steam. In this way, recycling of waste heat resources can be achieved, steam consumption is reduced, the energy using ratio is improved, water consumption of unit product water is lowered, cost is reduced, and the environment is protected.
Description
Technical field
The present invention relates to afterheat energy-saving transformation field, a kind of power station waste heat recycling system is particularly belonged to.
Background technology
It is hydrophobic out from 1/2# steam air heaters as Fig. 1 is Boiler Air Heater's draining system and determines the schematic diagram of platoon system
Lime set temperature：120 DEG C, flow：2 × 10t/h enters drain tank, and chemical industry oxygen-eliminating device is entered through the first lime set pump；Temperature：152 DEG C,
Flow：The 1/2# of 2 × 15t/h determines platoon sewage into platoon flash vessel is determined, and the steam of flash distillation is directly discharged, and bottom lime set is direct
Into trench.
If Fig. 2 is the schematic diagram of 1/2# heat exchange station heating systems, low-pressure steam respectively enters 1/2# heat exchange stations heating heating
Device, is heated to heating water 60 DEG C from 45 DEG C and forms closed cycle through 1# and 2# heating circulating pump, goes out 1/2# heat exchange station heating and adds
70 DEG C of entrance the second lime set collecting tanks of lime set of hot device enter chemical industry oxygen-eliminating device through the 3rd lime set pump.
As can be seen that all not having from steam air heater lime set out and a large amount of waste heats for determining platoon sewage in the flow of above-mentioned Fig. 1
There is recycling, especially determine platoon sewage into after flash vessel, steam and lime set are all directly discharged, and cause energy waste, water
Consumption increases；The low-pressure steam that the heating system of Fig. 2 needs consumption certain simultaneously carrys out heating water.If both are tied
Close and optimize, the utilization rate of the energy can be improved, reduce steam consumption.
The content of the invention
Low it is an object of the invention to provide a kind of cost of investment, simple to operate, power station waste heat safe and reliable to operation is returned
Receipts utilize system.
The technical solution adopted in the present invention is：A kind of power station waste heat recycling system, including described 1/2# is warmed up
The hydrophobic lime set of wind device enters drain tank through pipeline, and drain tank bottom lime set enters the first lime set collecting tank through the first lime set pump, the
One lime set collecting tank collects the secondary flash vapour that steam injector is reclaimed simultaneously, and the lime set and second for going out the first lime set collecting tank are coagulated
Liquid pump is connected and enters the second lime set collecting tank into after 2# heat exchange station heating heaters, with heating water heat, then through the 3rd lime set
Chemical industry oxygen-eliminating device is sent into after pump pressurization.Described 1/2# boilers determine platoon sewage through pipeline enter determine platoon flash vessel flash distillation after,
Top flash steam becomes lime set into the first lime set collecting tank through steam injector；Determine platoon flash vessel outlet at bottom and the 3rd to coagulate
Liquid collecting tank is connected, and 1# heat exchange station heating heater heating water is entered through the 4th lime set pump, and the lime set of cooling is admitted to be followed
Ring pond.Described switch valve is arranged on after flash steam to steam injector pipeline, when steam injector is because of demineralized water failure
When not having flow, switch valve is automatically opened up, it is ensured that the safe and stable operation of system.
In a preferred embodiment of the invention, in order to recovery boiler steam air heater hydrophobic lime set and determine platoon sewage,
Increase by first and the 3rd lime set collecting tank respectively.
In a preferred embodiment of the invention, determine platoon sewage with 1/2# boilers and the hydrophobic lime set of steam air heater replaces original
The low-pressure steam for coming, is connected with 1# heat exchange stations and 2# heat exchange stations carrys out heating water respectively.
In a preferred embodiment of the invention, in order to ensure that hydrophobic lime set and sewer can be recycled, respectively
The lime set pump of increase by second and the 4th, sends into chemical industry oxygen-eliminating device and circulating water pool after heat exchange station takes heat.
In a preferred embodiment of the invention, determine platoon flash vessel top exit and be connected with steam injector, effectively
Reclaim the flash steam of sewer in ground.
In a preferred embodiment of the invention, determine platoon flash vessel and switch valve and steam injector entrance desalination are installed
The flow of water forms chain, closes under normal circumstances, and when demineralized water interruption does not have flow, switch valve is automatically opened up, it is ensured that be
The safe and stable operation of system.
This programme is had the advantage that：
1. cost of investment is low, simple to operate, safe and reliable to operation.
2. the heat for making full use of the hydrophobic lime set of steam air heater and determining platoon sewage heats to heat exchange station, reduces steam consumption,
Improve the utilization rate of the energy.
3. the flash steam for pair determining platoon flash vessel is reclaimed, and elimination scene emits white vapour phenomenon, reaches energy saving and clear
The purpose of clean production.
4. by hydrophobic lime set, determine platoon sewage recycle and reuse, reduce the consumption of unit product water, saving is produced into
This.
Brief description of the drawings
Fig. 1 is existing Boiler Air Heater's draining system and determines the schematic diagram of platoon system；
Fig. 2 is the schematic diagram of existing 1/2# heat exchange stations heating system；
Fig. 3 is structural representation of the invention.
In figure：1 is drain tank, 2 is the first lime set pump, 3 is the first lime set collecting tank, 4 is the second lime set pump, 5 is 2#
Heat exchange station heating heater, 6 be 2# heating water circulations pump, 7 be the second lime set collecting tank, 8 be the 3rd lime set pump, 9 to determine platoon
Flash vessel, 10 be 1# heat exchange station heating heater, 11 be 1# heating water circulations pump, 12 be steam injector, 13 be the 3rd lime set
Collecting tank, 14 be the 4th lime set pump, 15 be switch valve.
Specific embodiment
It is below with reference to technical scheme and accompanying drawing, the in detail specific embodiment of narration this programme：
A kind of power station waste heat recycling system as shown in Figure 3, from 1/2# steam air heaters condensate flow out：2 × 10t/h,
Temperature：120 DEG C, pressure：0.2Mpa enters drain tank 1, enters the first lime set collecting tank 3 through the pressurization of the first lime set pump 2, with water outlet
95 DEG C of lime sets mixing of vapour injector 12 becomes 100 DEG C；Again through the feeding 2# heat exchange station heating of the second lime set pump 4 heater 5, will adopt
Warm water is heated to 60 DEG C of heating from 45 DEG C, and the temperature for going out 2# heat exchange station heating heater 5 is down to the 70 DEG C of lime sets of entrance second collections
Groove 7, chemical industry oxygen-eliminating device is sent into from the second lime set collecting tank 7 lime set out through the 4th lime set pump 8.
Temperature：152 DEG C, pressure：0.4Mpa, flow：The 1/2# of 2 × 15t/h determines the entrance of platoon sewage and determines platoon flash vessel
9, the vapor (steam) temperature of flash distillation：105 DEG C, pressure 0.01Mpa, flow is that 3t/h enters the low-pressure inlet of steam injector 12, by temperature
Degree：35 DEG C, pressure：1.0Mpa, after flow is for the desalination water jet of 25t/h, outlet temperature becomes 95 DEG C of lime sets of entrance first and receives
Collection groove 3.The bottom lime set for determining platoon flash vessel 9 enters the 3rd lime set collecting tank 13, then enters 1# heat exchange through the 4th lime set pump 14
Stand heating heater 10, heating water is heated to 60 DEG C of heating from 45 DEG C, the temperature for going out 1# heat exchange station heating heater 10 is down to
70 DEG C enter circulating water pool.Determine the switch valve 15 of the top blow-down pipe of platoon flash vessel 9, removed in the low-pressure inlet of steam injector 12
Salt solution does not have to be opened during flow, is closed during normal operation.
Claims (8)
1. a kind of power station waste heat recycling system, it is characterised in that hydrophobic including 1/2# steam air heaters connects successively through pipeline
Connect drain tank（1）, the first lime set pump（2）, the first lime set collecting tank（3）, the second lime set pump（4）, 2# heat exchange station heating heaters
（5）, 2# heating water circulation pumps（6）, the second lime set collecting tank（7）, the 3rd lime set pump（8）；1/2# boilers determine platoon soiled ends pipe
Road is sequentially connected determines platoon flash vessel（9）, steam injector（12）, the 3rd lime set collecting tank（13）, the 4th lime set pump（14）、1#
Heat exchange station heating heater（10）, 1# heating water circulation pumps（11）, wherein determining platoon flash vessel（9）Top blow-down pipe is connected with out
Close valve（15）.
2. a kind of power station waste heat recycling system according to claim 1, it is characterised in that described 1/2# warm winds
The hydrophobic lime set of device enters drain tank through pipeline（1）, drain tank outlet with the first lime set pump（2）Entrance is connected, and first is entered through pump
Lime set collecting tank（3）, the first lime set collecting tank（3）Bottom and the second lime set pump（4）Entrance is connected, the second lime set pump（4）Outlet
With 2# heat exchange station heating heaters（5）Entrance is connected, 2# heat exchange station heating heaters（5）Outlet and the second lime set collecting tank（7）
Entrance is connected, the second lime set collecting tank（7）Outlet is through the 3rd lime set pump（8）Feeding chemical industry oxygen-eliminating device；Heating water is through 2# heating waters
Circulating pump（5）With 2# heat exchange station heating heaters（6）It is connected, forms closed circulation system.
3. a kind of power station waste heat recycling system according to claim 1, it is characterised in that described 1/2# boilers
Determine platoon sewage and determine platoon flash vessel through pipeline entrance（9）, determine platoon flash vessel（9）Top exit and steam injector（12）It is low
Press-in mouth is connected, steam injector（12）Outlet and the first lime set collecting tank（3）Import is connected, wherein steam injector（12）'s
High pressure entry is connected with demineralized water；Determine platoon flash vessel（9）Outlet at bottom and the 3rd lime set collecting tank（13）Entrance be connected, the 3rd
Lime set collecting tank（13）Outlet lime set is through the 4th lime set pump（14）With 1# heat exchange station heating heaters（10）Entrance is connected, 1# heat exchange
Stand heating heater（10）Outlet enters circulating water pool；Heating water is through 1# heating water circulation pumps（11）Heated with the heating of 1# heat exchange stations
Device（10）It is connected, forms closed circulation system.
4. a kind of power station waste heat recycling system according to claim 2, it is characterised in that the first described lime set
Pump（2）Outlet is provided with the first lime set collecting tank（3）With the second lime set pump（4）, the second lime set pump（4）Outlet is adopted with 2# heat exchange stations
Warm heater（5）It is connected, 2# heat exchange station heatings is given instead of original low-pressure steam by the condensate liquid collected.
5. a kind of power station waste heat recycling system according to claim 3, it is characterised in that the first described lime set
Collecting tank（3）Top exit with determine platoon flash vessel（9）Overhead line is connected and reclaims flash steam.
6. a kind of power station waste heat recycling system according to claim 3, it is characterised in that described determines platoon expansion
Container（9）Outlet is provided with the 3rd lime set collecting tank（13）With the 4th lime set pump（14）, the 4th lime set pump（14）Outlet is changed with 1#
Heat stations heating heater（10）It is connected, 1# heat exchange station heatings is given instead of original low-pressure steam by the condensate liquid collected.
7. a kind of power station waste heat recycling system according to claim 3, it is characterised in that described determines platoon expansion
Container（9）Top exit sets steam injector（12）, steam injector（12）High pressure entry be connected with demineralized water, outlet with
First lime set collecting tank（3）Entrance is connected.
8. a kind of power station waste heat recycling system according to claim 3, it is characterised in that described determines platoon expansion
Container（9）Overhead line is provided with switch valve（15）, switch valve（15）Installed in flash steam to steam injector（12）Pipeline it
Afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710094958.5A CN106678769A (en) | 2017-02-22 | 2017-02-22 | Waste heat recycling system in power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710094958.5A CN106678769A (en) | 2017-02-22 | 2017-02-22 | Waste heat recycling system in power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678769A true CN106678769A (en) | 2017-05-17 |
Family
ID=58861188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710094958.5A Withdrawn CN106678769A (en) | 2017-02-22 | 2017-02-22 | Waste heat recycling system in power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678769A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087862A (en) * | 2017-12-13 | 2018-05-29 | 上海电力学院 | A waste steam waste heat recovery system for a fixed row expansion vessel and a deaerator |
| CN110500574A (en) * | 2019-09-23 | 2019-11-26 | 云南锡业股份有限公司铜业分公司 | Cogeneration condensed water comprehensive recovery system and recovery method |
| CN112228859A (en) * | 2020-10-20 | 2021-01-15 | 重庆赛迪热工环保工程技术有限公司 | Drainage recovery system of periodic blowdown flash tank of power plant |
| CN112302950A (en) * | 2020-10-30 | 2021-02-02 | 吉林鑫瑞控股集团有限责任公司 | Sewage source heat pump |
| CN113623639A (en) * | 2021-08-13 | 2021-11-09 | 湖北弈徽能源科技有限公司 | Boiler waste heat recovery system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10141606A (en) * | 1996-11-11 | 1998-05-29 | Mitsubishi Heavy Ind Ltd | Boiler plant |
| CN204757076U (en) * | 2015-05-19 | 2015-11-11 | 北京创时能源有限公司 | Steam power plant's heat supply hydrophobic waste heat recovery system of drawing gas |
| CN205191618U (en) * | 2015-11-27 | 2016-04-27 | 北京燃气能源发展有限公司 | Waste heat utilization system of boiler blow -off |
| CN205245140U (en) * | 2015-12-16 | 2016-05-18 | 上海光维电力科技有限公司 | Weary gas recovery unit and recovery system |
| CN205261619U (en) * | 2015-11-18 | 2016-05-25 | 内蒙古电力勘测设计院有限责任公司 | A fan heater drainage system for overcritical and ultra supercritical unit |
| CN205480939U (en) * | 2016-04-06 | 2016-08-17 | 华北电力科学研究院(西安)有限公司 | Hydrophobic recovery system of overcritical heat supply unit heat supply network |
| CN205783056U (en) * | 2016-05-30 | 2016-12-07 | 江西江联国际工程有限公司 | A kind of draining system for steam air heater of utility boiler device |
| CN206875407U (en) * | 2017-02-22 | 2018-01-12 | 查都（上海）科技有限公司 | A kind of power station waste heat recycling system |
-
2017
- 2017-02-22 CN CN201710094958.5A patent/CN106678769A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10141606A (en) * | 1996-11-11 | 1998-05-29 | Mitsubishi Heavy Ind Ltd | Boiler plant |
| CN204757076U (en) * | 2015-05-19 | 2015-11-11 | 北京创时能源有限公司 | Steam power plant's heat supply hydrophobic waste heat recovery system of drawing gas |
| CN205261619U (en) * | 2015-11-18 | 2016-05-25 | 内蒙古电力勘测设计院有限责任公司 | A fan heater drainage system for overcritical and ultra supercritical unit |
| CN205191618U (en) * | 2015-11-27 | 2016-04-27 | 北京燃气能源发展有限公司 | Waste heat utilization system of boiler blow -off |
| CN205245140U (en) * | 2015-12-16 | 2016-05-18 | 上海光维电力科技有限公司 | Weary gas recovery unit and recovery system |
| CN205480939U (en) * | 2016-04-06 | 2016-08-17 | 华北电力科学研究院(西安)有限公司 | Hydrophobic recovery system of overcritical heat supply unit heat supply network |
| CN205783056U (en) * | 2016-05-30 | 2016-12-07 | 江西江联国际工程有限公司 | A kind of draining system for steam air heater of utility boiler device |
| CN206875407U (en) * | 2017-02-22 | 2018-01-12 | 查都（上海）科技有限公司 | A kind of power station waste heat recycling system |
Non-Patent Citations (2)
| Title |
|---|
| 张世昌: "浅论节能环保技术措施在火电厂中的实际应用", 《山东工业技术》 * |
| 韩新立等: "定排扩容器余热回收浅谈", 《山东工业技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087862A (en) * | 2017-12-13 | 2018-05-29 | 上海电力学院 | A waste steam waste heat recovery system for a fixed row expansion vessel and a deaerator |
| CN110500574A (en) * | 2019-09-23 | 2019-11-26 | 云南锡业股份有限公司铜业分公司 | Cogeneration condensed water comprehensive recovery system and recovery method |
| CN112228859A (en) * | 2020-10-20 | 2021-01-15 | 重庆赛迪热工环保工程技术有限公司 | Drainage recovery system of periodic blowdown flash tank of power plant |
| CN112302950A (en) * | 2020-10-30 | 2021-02-02 | 吉林鑫瑞控股集团有限责任公司 | Sewage source heat pump |
| CN113623639A (en) * | 2021-08-13 | 2021-11-09 | 湖北弈徽能源科技有限公司 | Boiler waste heat recovery system |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 570000 No. a5002-323, A1 area, Fuxing City, 32 Binhai Avenue, Longhua District, Haikou City, Hainan Province Applicant after: Chadu (Hainan) Technology Co.,Ltd. Address before: Part 541, 5A / F, building B, 155 Fute West 1st Road, Shanghai pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Applicant before: CHADU (SHANGHAI) TECHNOLOGY Co.,Ltd. |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170517 |