CN105180144B - Residual heat from boiler fume recovery system - Google Patents
Residual heat from boiler fume recovery system Download PDFInfo
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- CN105180144B CN105180144B CN201510501984.6A CN201510501984A CN105180144B CN 105180144 B CN105180144 B CN 105180144B CN 201510501984 A CN201510501984 A CN 201510501984A CN 105180144 B CN105180144 B CN 105180144B
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Abstract
The invention discloses a kind of residual heat from boiler fume recovery system, including economizer, the pump housing, First Heat Exchanger, second heat exchanger, heat supply network water system and condensate system, the economizer, the heat transferring medium side of the First Heat Exchanger and the pump housing are sequentially communicated to form first circulation loop, the economizer, the heat transferring medium side of second heat exchanger and the pump housing are sequentially communicated to form second circulation loop, first water side of the First Heat Exchanger connects to form the first heat-exchanging loop with the condensate system, second water side of second heat exchanger forms the second heat-exchanging loop with the hot net water system connectivity.The present invention realizes the independent heat exchange of hot net water and condensate, effectively prevent water quality interference, ensures that main frame condensate is not contaminated.Meanwhile using heat transferring medium and the indirect heat exchange mode of boiler smoke heat exchange so that condensate and hot net water do not contact directly with economizer, reduce economizer pouring, can save raw material cost of manufacture.
Description
Technical field
The present invention relates to residual heat from boiler fume recovery technology field, refers in particular to a kind of residual heat from boiler fume recovery system.
Background technology
A most important loss is heat loss due to exhaust gas in boiler operatiopn, reduces flue gas loss, rationally utilizes fume afterheat
It is particularly important for the economy of the saving energy, raising power plant.More saved in residual heat from boiler fume removal process using low temperature
Coal device, i.e., absorb fume afterheat as low-temperature receiver by the use of condensate and/or hot net water.When non-heating period and condensate exchange heat, coagulate
Bear water and smoke exhaust heat is absorbed in low-level (stack-gas) economizer, reduce exhaust gas temperature, itself be heated, return again to steam turbine after rise temperature
Low-pressure heater system, it is a part of thermodynamic system of steam tur instead of the effect of part low-pressure heater.Work as heating
When phase exchanges heat with hot net water, hot net water flows through economizer and flue gas heat exchange, and the hot net water after heating externally is exported for heating.
Current existing fume recovery system because Heating Period is different from the low-temperature receiver of non-heating period fume afterheat system, because
This, low-level (stack-gas) economizer water side system needs to be switched over according to the change of unit load property, due to solidifying during switching
Bear water and hot net water common pall between shut-off valve is imported and exported, thus have that identical pipeline different quality is used alternatingly asks
Topic, if misoperation when hot net water switches with condensate, easy pollution condensate water quality, and rinse early stage to need to consume and partly coagulate
Bear water or demineralized water, working medium have waste.Also, when being exchanged heat with condensate, economizer needs to bear condensate at least about 4Mpa
Compression, thus its corrosion resistance, pouring are higher.
The content of the invention
Based on this, the defects of the invention reside in prior art is overcome, there is provided a kind of residual heat from boiler fume recovery system, in fact
The independent heat exchange of hot net water and condensate is showed, effectively prevent water quality interference, ensured that main frame condensate is not contaminated.
Its technical scheme is as follows：
A kind of residual heat from boiler fume recovery system, including economizer, the pump housing, First Heat Exchanger, the second heat exchanger, hot net water
System and condensate system, the economizer, the heat transferring medium side of the First Heat Exchanger and the pump housing are sequentially communicated shape
Into first circulation loop, the economizer, the heat transferring medium side of second heat exchanger and the pump housing are sequentially communicated to be formed
Second circulation loop, the first water side of the First Heat Exchanger connect to form the first heat-exchanging loop with the condensate system, institute
The the second water side and the hot net water system connectivity for stating the second heat exchanger form the second heat-exchanging loop.
In one of the embodiments, in addition to the first triple valve and the second triple valve, first triple valve is provided with the
One joint, the second joint, the 3rd joint, first joint connects with the heat transferring medium side output end of the economizer, described
Second joint connects with the heat transferring medium side input of the First Heat Exchanger, the 3rd joint and second heat exchanger
The input connection of heat transferring medium side；Second triple valve is provided with the 4th joint, the 5th joint and the 6th joint, and the described 4th connects
Head connects with the heat transferring medium side input of the economizer, the heat transferring medium side of the 5th joint and the First Heat Exchanger
Output end connects, and the 6th joint connects with the heat transferring medium side output end of second heat exchanger.
In one of the embodiments, the heat transferring medium side input of the economizer also connects with heat transferring medium feed system
It is logical.
In one of the embodiments, in addition to low-pressure heater, the input of the low-pressure heater and the condensation
The output end of water system is connected by low-pressure heater water inlet pipe, the output end of the low-pressure heater and the condensate system
Input connected by low-pressure heater outlet pipe, the input of the first water side of the First Heat Exchanger adds with the low pressure
Hot device water inlet pipe is connected by the first water inlet pipe, output end and the low-pressure heater of the first water side of the First Heat Exchanger
Outlet pipe is connected by the first outlet pipe, and first water inlet pipe is provided with the first water intaking valve, and first outlet pipe is provided with first
Outlet valve.
In one of the embodiments, the input of the second water side of second heat exchanger and the heat supply network water system
Output end is connected by the second water inlet pipe, and the output end of the second water side of second heat exchanger is defeated with the heat supply network water system
Enter end to connect by the second outlet pipe, second water inlet pipe is provided with the second water intaking valve, and second outlet pipe goes out provided with second
Water valve, is provided with shunt valve between second water inlet pipe and second outlet pipe, the shunt valve is provided with bypass valve, the side
Second water inlet pipe junction described in Lu Guanyu is provided with the first tie point, and the shunt valve is provided with the second outlet pipe junction
Second tie point, second water intaking valve is between first tie point and second heat exchanger, second water outlet
Valve is between second tie point and second heat exchanger.
In one of the embodiments, first water inlet pipe is provided with water regulating valve.
In one of the embodiments, the heat transferring medium of the heat transferring medium side is demineralized water.
The beneficial effects of the present invention are：
This programme is connected in parallel on economizer both ends using First Heat Exchanger and the second heat exchanger and forms two heat transferring medium circulations
Loop, First Heat Exchanger are provided with the first water side with heat transferring medium side therein heat exchange, and the second heat exchanger is provided with and changed with therein
Second water side of thermal medium side heat exchange, so as to form independent the first heat-exchanging loop and the second heat-exchanging loop, is prevented identical
The problem of pipeline different quality is used alternatingly, in the switching of Heating Period and non-heating period, it is only necessary to cut off and connect accordingly
Heat transferring medium circulation loop, main frame condensate water quality will not be polluted, be advantageous to reliability requirement height, fault rate requires low
Construction safety is carried out.Meanwhile using heat transferring medium and boiler smoke heat exchange, afterwards heat transferring medium again with condensate and hot net water
The indirect heat exchange mode of heat exchange so that condensate and hot net water do not contact directly with economizer, reduce the resistance to compression of economizer
It is required that it can correspondingly save raw material cost of manufacture.
The heat transferring medium side output end of the economizer and the heat exchange of the First Heat Exchanger and second heat exchanger are situated between
Matter side input is connected by the first triple valve, heat transferring medium side input and the First Heat Exchanger and the institute of the economizer
The heat transferring medium side output end for stating the second heat exchanger is connected by the second triple valve, when non-heating season section, the first triple valve with
Second triple valve switches to the heat transferring medium side of connection economizer and First Heat Exchanger, and form heat-setting water first follows
Loop back path；When heating season, the first triple valve and the second triple valve switch to changing for connection economizer and the second heat exchanger
Thermal medium side, form the second circulation loop of heating hot net water.First triple valve and the second triple valve realize condensate and
The independent heat exchange of hot net water so that condensate heats and hot net water heating easy switching.
Because heat transferring medium has certain loss in heat transfer process, thus the heat transferring medium side input of economizer also with
Heat transferring medium feed system connects, and ensures that heat transferring medium circulation loop can have sufficient heat transferring medium to supply, and keeps system steady
Fixed operation.
The first water inlet pipe and the first outlet pipe are provided between first water side of First Heat Exchanger and condensate system, first enters
Water pipe and the first outlet pipe are respectively equipped with the first water intaking valve and the first outlet valve, because the first water inlet pipe and low-pressure heater are intake
Pipe connects, and the first outlet pipe connects with low-pressure heater outlet pipe, thus First Heat Exchanger and low-pressure heater parallel communication, its
The condensate of heating can replace the use of part low-pressure heater, when needs are carried out to the residual heat from boiler fume recovery system
During repair and maintenance, as long as closing the first water intaking valve and the first outlet valve, making for steam turbine machine condensate main road is not interfered with
With.
The second water inlet pipe and the second outlet pipe are provided between second water side of the second heat exchanger and heat supply network water system, second enters
Water pipe and the second outlet pipe are respectively equipped with the second water intaking valve and the second outlet valve, second water inlet pipe and second outlet pipe
Between be provided with shunt valve, the shunt valve is provided with bypass valve, when need the residual heat from boiler fume recovery system is overhauled
Safeguard, can directly close the second water intaking valve and the second outlet valve and open bypass valve, afterwards the second water inlet pipe and the second outlet pipe
Connected by shunt valve, ensure hot net water main road normal use.
First water inlet pipe of First Heat Exchanger is the branch of low-pressure heater water inlet pipe, and water can be set on the first water inlet pipe
Regulating valve, to adjust the condensing water flow for entering First Heat Exchanger, and then fume afterheat uptake can be adjusted indirectly.
The heat transferring medium of the heat transferring medium side is demineralized water, and demineralized water has higher cleannes, meets system water quality
It is required that while present invention only requires the compression for bearing demineralized water about 0.6Mpa sizes, reduce the residual heat from boiler fume and return
The pouring of receipts system, the present invention can use the relatively low tubing of corresponding pouring to efficiently reduce system as raw material
Make cost.
Brief description of the drawings
Fig. 1 is the structural representation of the residual heat from boiler fume recovery system described in the embodiment of the present invention.
Description of reference numerals：
10th, deduster, 20, desulfurization island, 30, heat transferring medium feed system, 100, economizer, 200, the pump housing, 300, first
Heat exchanger, the 310, first water inlet pipe, the 311, first water intaking valve, 312, water regulating valve, the 320, first outlet pipe, 321, first goes out
Water valve, the 400, second heat exchanger, the 410, second water inlet pipe, the 411, second water intaking valve, the 420, second outlet pipe, the 421, second water outlet
Valve, 430, shunt valve, 431, bypass valve, 500, heat supply network water system, 600, condensate system, the 700, first triple valve, 710,
One joint, the 720, second joint, the 730, the 3rd joint, the 800, second triple valve, the 810, the 4th joint, the 820, the 5th joint,
830th, the 6th joint, 900, low-pressure heater, 910, low-pressure heater water inlet pipe, 911, low-pressure heater water intaking valve, 920, low
Press heater outlet pipe, 921, low-pressure heater outlet valve.
Embodiment
Embodiments of the invention are described in detail below：
As shown in figure 1, a kind of residual heat from boiler fume recovery system, including exchanged heat located at economizer 100, the pump housing 200, first
Device 300, the second heat exchanger 400, the condensate system 600 of heat supply network water system 500 and steam turbine, economizer 100 are located at deduster
After 10, before desulfurization island 20, economizer 100, the heat transferring medium side of First Heat Exchanger 300 and the pump housing 200 are sequentially communicated shape
Into first circulation loop, economizer 100, the heat transferring medium side of the second heat exchanger 400 and the pump housing 200 are sequentially communicated to form second
Circulation loop, the first water side of First Heat Exchanger 300 connects with condensate system 600 forms the first heat-exchanging loop, the second heat exchange
Second water side of device 400 connects with heat supply network water system 500 forms the second heat-exchanging loop.By by First Heat Exchanger 300 and second
Heat exchanger 400 is connected in parallel on the first circulation loop and second circulation loop that the both ends of economizer 100 form heat transferring medium respectively, afterwards
Condensate reaches heating again with heat transferring medium heat exchange in heat transferring medium side therein in first water side of First Heat Exchanger 300
The purpose of condensate；Similarly, hot net water and heat transferring medium in heat transferring medium side therein in the second water side of the second heat exchanger 400
Heat exchange, reach the purpose of heating hot net water.First heat-exchanging loop and the second heat-exchanging loop of the invention are each independent, prevent
The problem of identical pipeline different quality is used alternatingly, in the switching of Heating Period and non-heating period, it is only necessary to cut off and connect phase
The heat transferring medium circulation loop answered, steam turbine condensate water quality will not be polluted, be advantageous to reliability requirement height, fault rate is wanted
Low construction safety is asked to carry out.Meanwhile using heat transferring medium and boiler smoke heat exchange, afterwards heat transferring medium again respectively with condensation
The indirect heat exchange mode of water, heat supply network hydrothermal exchange so that condensate, hot net water do not contact directly with economizer 100, reduce province
The pouring of coal device 100, it can correspondingly save raw material cost of manufacture.
The heat transferring medium of heat transferring medium side of the present invention is preferably demineralized water, and demineralized water has higher cleannes, full
Pedal system water quality requirement, while present invention only requires the compression for bearing demineralized water about 0.6Mpa sizes, reduce the boiler
The pouring of flue gas waste heat recovery system, the present invention can use the relatively low tubing of corresponding pouring as raw material,
Efficiently reduce cost of manufacture.
The pump housing 200 is preferably closed cycle water pump, for the resistance for overcoming heat transferring medium circulation loop and heat exchanger to bring
Power, and its lift is lower than the booster of traditional direct heat transfer system, saves power consumption.
Present invention additionally comprises the first triple valve 700 and the second triple valve 800, the first triple valve 700 is provided with the first joint
710th, the second joint 720, the 3rd joint 730, the first joint 710 connect with the heat transferring medium side output end of economizer 100, and second
Joint 720 connects with the heat transferring medium side input of First Heat Exchanger 300, the heat exchange of the 3rd joint 730 and the second heat exchanger 400
Side medium input connects；Second triple valve 800 is provided with the 4th joint 810, the 5th joint 820 and the 6th joint 830, and the 4th connects
First 810 connect with the heat transferring medium side input of economizer 100, the heat transferring medium side of the 5th joint 820 and First Heat Exchanger 300
Output end connects, and the 6th joint 830 connects with the heat transferring medium side output end of the second heat exchanger 400.When non-heating season section, the
One triple valve 700 switches to the heat transferring medium side for connecting economizer 100 and First Heat Exchanger 300, shape with the second triple valve 800
Into the first circulation loop of heat-setting water；When heating season, the first triple valve 700 and the second triple valve 800 switch
To the heat transferring medium side of the connection heat exchanger 400 of economizer 100 and second, the second circulation loop for heating hot net water is formd.The
One triple valve 700 and the second triple valve 800 realize the independent heating of condensate and hot net water so that condensate heats and heat supply network
Water heats easy switching.
Because heat transferring medium has certain loss, thus the heat transferring medium side input of economizer 100 in heat transfer process
Also connect and automatically fed with heat transferring medium feed system 30, ensure that heat transferring medium circulation loop being capable of stable operation.
Present invention additionally comprises low-pressure heater 900, the input of low-pressure heater 900 and the output of condensate system 600
End is connected by low-pressure heater water inlet pipe 910, and the input of the output end and condensate system 600 of low-pressure heater 900 leads to
Low-pressure heater outlet pipe 920 is crossed to connect.The input of first water side of First Heat Exchanger 300 and low-pressure heater water inlet pipe
910 are connected by the first water inlet pipe 310, for the condensate of low-pressure heater water inlet pipe 910 to be introduced into First Heat Exchanger 300
In；The output end of first water side of First Heat Exchanger 300 is connected with low-pressure heater outlet pipe 920 by the first outlet pipe 320,
For the condensate after heating to be imported into the main condensate of low-pressure heater outlet pipe 920.First water inlet pipe 310 is provided with the
One water intaking valve 311, the first outlet pipe 320 are provided with the first outlet valve 321, and low-pressure heater water inlet pipe 910 is provided with low-pressure heater
Water intaking valve 911, low-pressure heater outlet pipe 920 are provided with low-pressure heater outlet valve 921, under normal operating condition, above-mentioned valve
Open mode is in, when needing to carry out repair and maintenance to the residual heat from boiler fume recovery system, is entered as long as closing first
The outlet valve 321 of water valve 311 and first, low-pressure heater 900 remain to normal heating condensate and export supply, do not interfere with
The use of steam turbine machine condensate main road, when needing to overhaul low-pressure heater 900, close low-pressure heater water intaking valve
911 and low-pressure heater outlet valve 921.
In the present embodiment, the first water inlet pipe 310 is additionally provided with water regulating valve 312, enters First Heat Exchanger 300 to adjust
Condensing water flow, and then fume afterheat uptake can be adjusted indirectly.
The input of the second water side of second heat exchanger 400 passes through the second water inlet pipe with the output end of heat supply network water system 500
410 connections, the output end of the second water side and the input of heat supply network water system 500 of the second heat exchanger 400 pass through the second outlet pipe
420 connections, the second water inlet pipe 410 are provided with the second water intaking valve 411, and the second outlet pipe 420 is provided with the second outlet valve 421, and second enters
Shunt valve 430 is provided between the outlet pipe 420 of water pipe 410 and second, shunt valve 430 is provided with bypass valve 431, shunt valve 430 and
The junction of two water inlet pipe 410 is provided with the first tie point (accompanying drawing does not identify), and shunt valve 430 is set with the junction of the second outlet pipe 420
Have the second tie point (accompanying drawing does not identify), the second water intaking valve 411 between first tie point and the second heat exchanger 400,
Second outlet valve 421 is between second tie point and the second heat exchanger 400.When needs return to the residual heat from boiler fume
Receipts system carries out repair and maintenance, can directly close the second water intaking valve 411 and the second outlet valve 421 and open bypass valve 431, afterwards
Second water inlet pipe 410 is connected with the second outlet pipe 420 by shunt valve 430, ensures hot net water main road normal use.
Because traditional economizer 100 is after Boiler Furnace, with condensate or heat supply network water direct heat-exchange, pipeline length, resistance is big,
Investment is big, and boosting pump lift is big, and the heat exchanger 400 of First Heat Exchanger of the present invention 300 and second can be disposed at steam turbine building, from solidifying
Bear water system and heat supply network water system is nearer, can accordingly reduce the first water inlet pipe 310, the first outlet pipe 320 and the second water inlet pipe
410th, the length of the second outlet pipe 420, and then the high pressure pipe material that can reduce the first water inlet pipe 310 and the first outlet pipe 320 is used
Amount, reduce cost of manufacture.
The present invention efficiently utilizes the heat energy of flue gas so that flue-gas temperature is effectively reduced, and flue gas is by removing
Dirt device, desulfurization island are discharged into air again, it also avoid the pollution to environment.Flue gas afterbody waste heat is utilized in Heating Period and non-heating period
Hot net water and condensate are heated respectively, reduces gross station heat rate, reduces coal consumption of power supply, unit efficiency are improved, especially for brown
Coal unit, its exhaust gas temperature is higher, and flue gas can be big using waste heat, and exhaust heat utilization effect is more notable.Meanwhile present invention, avoiding
The problem of identical pipeline different quality is used alternatingly, in the switching of Heating Period and non-heating period, it is only necessary to cut off and connect respectively
Lead to corresponding heat transferring medium circulation loop, steam turbine condensate water quality will not be polluted, be advantageous to reliability requirement height, failure
The construction safety that rate requires low is carried out.Meanwhile using heat transferring medium and boiler smoke heat exchange, afterwards heat transferring medium again with heat supply network
Water and the indirect heat exchange mode for condensing hydrothermal exchange so that condensate and hot net water do not contact directly with economizer 100, reduce
The pouring of economizer 100, raw material cost of manufacture can be saved.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of residual heat from boiler fume recovery system, it is characterised in that including economizer, the pump housing, First Heat Exchanger, the second heat exchange
Device, heat supply network water system and condensate system, the economizer, the heat transferring medium side of the First Heat Exchanger and the pump housing according to
Secondary connection forms first circulation loop, and the economizer, the heat transferring medium side of second heat exchanger and the pump housing are successively
Connection forms second circulation loop, and the first water side of the First Heat Exchanger connects to form the first heat exchange with the condensate system
Loop, the second water side and the hot net water system connectivity of second heat exchanger form the second heat-exchanging loop；The economizer,
The heat transferring medium of the heat transferring medium side of the First Heat Exchanger and second heat exchanger is demineralized water；Also include the first threeway
Valve and the second triple valve, first triple valve are provided with the first joint, the second joint, the 3rd joint, first joint and institute
State the heat transferring medium side output end connection of economizer, the heat transferring medium side input of second joint and the First Heat Exchanger
Connection, the 3rd joint connect with the heat transferring medium side input of second heat exchanger；Second triple valve is provided with the
Four joints, the 5th joint and the 6th joint, the 4th joint connects with the heat transferring medium side input of the economizer, described
5th joint connects with the heat transferring medium side output end of the First Heat Exchanger, the 6th joint and second heat exchanger
The output end connection of heat transferring medium side.
2. residual heat from boiler fume recovery system according to claim 1, it is characterised in that the heat transferring medium of the economizer
Side input also connects with heat transferring medium feed system.
3. residual heat from boiler fume recovery system according to claim 1, it is characterised in that also including low-pressure heater, institute
State the input of low-pressure heater to connect by low-pressure heater water inlet pipe with the output end of the condensate system, the low pressure
The output end of heater is connected with the input of the condensate system by low-pressure heater outlet pipe, the First Heat Exchanger
The input of the first water side connected with the low-pressure heater water inlet pipe by the first water inlet pipe, the of the First Heat Exchanger
The output end of one water side is connected with the low-pressure heater outlet pipe by the first outlet pipe, and first water inlet pipe is provided with first
Water intaking valve, first outlet pipe are provided with the first outlet valve.
4. residual heat from boiler fume recovery system according to claim 1, it is characterised in that the second of second heat exchanger
The input of water side is connected with the output end of the heat supply network water system by the second water inlet pipe, the second water of second heat exchanger
The output end of side is connected with the input of the heat supply network water system by the second outlet pipe, and second water inlet pipe enters provided with second
Water valve, second outlet pipe are provided with the second outlet valve, and bypass is provided between second water inlet pipe and second outlet pipe
Pipe, the shunt valve are provided with bypass valve, and the shunt valve is provided with the first tie point, the side with the second water inlet pipe junction
Second outlet pipe junction described in Lu Guanyu is provided with the second tie point, and second water intaking valve is located at first tie point and institute
Between stating the second heat exchanger, second outlet valve is between second tie point and second heat exchanger.
5. residual heat from boiler fume recovery system according to claim 3, it is characterised in that first water inlet pipe is provided with water
Adjustable valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510501984.6A CN105180144B (en) | 2015-08-14 | 2015-08-14 | Residual heat from boiler fume recovery system |
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| CN201510501984.6A CN105180144B (en) | 2015-08-14 | 2015-08-14 | Residual heat from boiler fume recovery system |
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| CN105180144B true CN105180144B (en) | 2018-03-16 |
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| CN111811287A (en) * | 2020-07-23 | 2020-10-23 | 湖南长远锂科股份有限公司 | Ternary battery anode material sintering kiln waste heat recovery system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203036658U (en) * | 2012-12-10 | 2013-07-03 | 河北省电力勘测设计研究院 | Boiler flue gas waste heat multipurpose utilization system |
| CN204026714U (en) * | 2014-05-29 | 2014-12-17 | 舒少辛 | A kind of device of fume afterheat comprehensive utilization |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454980B (en) * | 2010-10-19 | 2014-07-16 | 上海成信建业节能科技有限公司 | Method for recycling flue gas waste heat of thermal power plant boiler |
| WO2013091457A1 (en) * | 2011-12-20 | 2013-06-27 | 上海伏波环保设备有限公司 | Coal economizer with closed loop |
| CN203215658U (en) * | 2013-04-11 | 2013-09-25 | 杭州锅炉集团股份有限公司 | Expansible low-pressure coal economizer system |
| CN203731368U (en) * | 2013-12-31 | 2014-07-23 | 华电电力科学研究院 | Device for deep recovery of smoke discharge waste heat of waste heat boiler |
| CN104728826A (en) * | 2015-03-19 | 2015-06-24 | 中国华能集团清洁能源技术研究院有限公司 | Constant temperature economizer |
| CN204880080U (en) * | 2015-08-14 | 2015-12-16 | 中国能源建设集团广东省电力设计研究院有限公司 | Waste heat of boiler flue gas recovery system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203036658U (en) * | 2012-12-10 | 2013-07-03 | 河北省电力勘测设计研究院 | Boiler flue gas waste heat multipurpose utilization system |
| CN204026714U (en) * | 2014-05-29 | 2014-12-17 | 舒少辛 | A kind of device of fume afterheat comprehensive utilization |
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