CN105953212B - Film-type evaporation phase-change heat-exchange water heater - Google Patents
Film-type evaporation phase-change heat-exchange water heater Download PDFInfo
- Publication number
- CN105953212B CN105953212B CN201610383115.2A CN201610383115A CN105953212B CN 105953212 B CN105953212 B CN 105953212B CN 201610383115 A CN201610383115 A CN 201610383115A CN 105953212 B CN105953212 B CN 105953212B
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- pipe
- film
- ultra micro
- evaporator section
- steam
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000001704 evaporation Methods 0.000 title claims abstract description 12
- 230000008020 evaporation Effects 0.000 title claims abstract description 12
- 239000003595 mist Substances 0.000 claims abstract description 39
- 238000009833 condensation Methods 0.000 claims abstract description 30
- 230000005494 condensation Effects 0.000 claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003546 flue gas Substances 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
- F22D1/08—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways the tubes having fins, ribs, gills, corrugations, or the like on their outer surfaces, e.g. in vertical arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of film-type evaporation phase-change heat-exchange heater of water supply heating, comprising: evaporator section, steam pipe, condensation segment, condensate pipe, ultra micro mist film generating device and control system.Wherein: evaporator section is placed in flue, the upper end of evaporator section is connected with the lower end of steam pipe, the upper end of condensation segment is connected with the upper end of steam pipe, the lower end of condensation segment is connected with the upper end of condensate pipe, the lower end of condensate pipe is connected by liquid working substance filter device, force (forcing) pump, antisludging equipment and the ultra micro mist film generator of ultra micro mist film generating device with evaporator section, ultra micro mist film generator is placed in evaporator section fin heat exchange pipe, and control system is connected with evaporator section wall temperature measurement point, condensation segment water inlet electronic regulated valve respectively.The present invention is suitable for the various flue gas residual heats utilization of Industrial Boiler, kiln, heating furnace, and heat exchange efficiency is higher than common phase-change heat-exchanger.
Description
Technical field
Boiler desalination is given using Industrial Boiler, kiln and heating furnace tail portion low-temperature flue gas waste heat the present invention relates to a kind of
Water or the film-type evaporation phase-change heat-exchange water heater of domestic water heating.
Background technique
Boiler is one of highly energy-consuming equipment in industrial production, in the factors for influencing boiler thermal efficiency, flue gas loss
The 70~80% of boiler whole heat loss are accounted for, exhaust gas temperature height is one of main index of boiler heat loss, is to measure pot
" significant " parameter of furnace thermal efficiency.Exhaust gas temperature is every to reduce by 15 DEG C, and boiler efficiency about 1% can be improved.Reduce exhaust gas temperature not only
Boiler efficiency can be improved, the discharge of carbon dioxide, sulfur dioxide and nitrogen oxide can also be reduced, environment is effectively protected.
Currently, utilizing field in low-temperature flue gas waste heat, the technology being widely used has: low-pressure coal saver, heat exchange of heat pipe, general
The heat transfer technologies such as logical phase-change heat-exchanger.These technologies are reducing exhaust gas temperature, have played really in terms of reducing disposal of pollutants certain
Effect, but is difficult to solve there is also a series of problems, it may be assumed that low-temperature corrosion, dust stratification and heat pipe because of on-condensible gas Problem of Failure, and
Common phase-change heat-exchanger, can only be such as such in horizontal flue application etc. since its reasons in structure can not be in vertical gas pass application
Kind reason brings insoluble difficulty using reducing energy consumption to residual heat from boiler fume.
Summary of the invention
The present invention for existing flue gas waste heat at the end of boiler recycle existing dust stratification, low-temperature corrosion and heat exchange efficiency it is low, by
The problems such as flue shaped position limits proposes a kind of diaphragm type evaporative phase-change heat exchange water heater, solves above-mentioned engineering and answer
Use problem.
The technical scheme is that: a kind of film-type evaporation phase-change heat-exchange water heater, comprising: evaporator section, steam pipe, condensation
Section, condensate pipe, ultra micro mist film generating device and control system.Wherein: evaporator section is placed in flue, and the upper end of evaporator section passes through steaming
Vapour header is connected with the lower end of steam pipe, and the upper end of condensation segment is connected with the upper end of steam pipe, the upper end of condensate pipe and condensation segment
Lower end be connected, the other end is occurred by the liquid working substance filter device of ultra micro mist film generating device, antisludging equipment and ultra micro mist film
The fin heat exchange pipe row of device and evaporator section is connected, control system respectively with temperature point, condensation segment water inlet electronic regulated valve, add
Press pump is connected.
The condensation segment includes: shell, steam-water heat exchanging tube bank, in which: column are placed in shell laterally side by side for steam-water heat exchanging tube bank
The inside of body；Upper part of the housing is provided with safety valve, exhaust valve, steam inlet, and shell lower end is provided with condensate outlet.
The ultra micro mist film generating device, comprising: liquid working substance filter device, force (forcing) pump, antisludging equipment, ultra micro mist film occur
Device；Wherein: filter device upper end is connected with condensate pipe lower end, and the other end passes through force (forcing) pump, antisludging equipment and ultra micro mist film generator
It is connected, ultra micro mist film generator is placed in evaporator section fin heat exchange pipe row, sprays ultra micro water mist to heat transfer tube wall and in inner wall shape
Mist formation film.
The evaporator section includes: fin heat exchange pipe row, steam header and connecting tube, in which: fin heat exchange pipe be set in
In flue, the both ends of connecting tube are connected with finned tube row and steam header respectively, and the position of steam header is higher than the upper end of pipe row.
The control system, comprising: electronic regulated valve, temperature point, force (forcing) pump.Wherein: electronic regulated valve is set respectively
In condensation segment water inlet.Temperature point is set on jet chimney, and temperature point believes the cycle fluid temperature of insides of pipes
Number PLC control system is fed back to, when the temperature signal surveyed deviates normal value, PLC system issues a command to condensation segment water inlet
Electronic regulated valve, adjusts valve opening, and adjustment healed water enters the flow of condensation segment, finally stablizes circulatory mediator temperature
Range of normal value, to guarantee that heat exchanger heat-exchanging tube wall surface temperature is maintained at dew-point temperature or more.
The fin heat exchange pipe pipe row is Influences of Structure of Spiral Finned Tube side by side.
The present invention except have good thermal conduction, heat exchanger wall temperature it is controllable in addition to, be suitable for horizontal flue, vertical flue, gram
Traditional phase-change heat-exchanger is taken in engineering because being limited the drawbacks of cannot applying by field condition.
The working principle of the invention:
Membrane type evaporative phase-change of the present invention exchanges heat water heater, and evaporator section is mounted on boiler, on kiln back-end ductwork, condensation
Section is mounted on the position higher than evaporator section.
Liquid working substance generates ultra micro mist, micro- mist by ultra micro mist film generator in evaporator section fin heat exchange pipe in heat exchanger
It is uniformly attached to heat transfer tube wall and forms mist film, absorb flue gas heat, rapid vaporization generates phase transformation, produces in fin heat exchange pipe
Saturated vapor is given birth to, the saturated vapor in finned tube is collected in steam header by connecting tube, and steam header passes through steam pipe and connects
It is connected to the steam inlet of condensation segment (shell-and-tube heat exchanger), in condenser, by heat exchange, the demineralized water that is heated (or its
Its process water) heat is absorbed, after temperature is increased to set temperature, demineralized water main pipe is returned to for production application, saturated vapor is put
It is condensed into water after heat, filter device is dropped to by condenser lower end condensate pipe, is sent out by force (forcing) pump, antisludging equipment, ultra micro mist film
Raw device forms ultra micro mist film in fin inside pipe wall, and reciprocation cycle reaches the purpose using fume afterheat.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
It include: 1, evaporator section (2), 2, connecting tube (4), 3, steam header (5), 4, steam pipe (7), 5, temperature point in figure
(6), 6, condensation segment (8), 7, shell (9), 8, exhaust pipe (11), 9, steam-water heat exchanging tube bank (10), 10, demineralized water water inlet line
(16), 11, demineralized water outlet conduit (18), 12, demineralized water water inlet electronic regulated valve (17), 13, condensate pipe (12), 14, filtering
Device (13), 15, force (forcing) pump (14), 16, ultra micro mist film generator (15), 17, fin heat exchange pipe row (3), 18, flue (1),
19, control system (19), 20, antisludging equipment (20).
Specific embodiment
It elaborates below with reference to embodiment to the present invention:
This example evaporator section (2) is placed in flue (1), and the fin heat exchange pipe row (3) of evaporator section (2) passes through connecting tube (4)
It is connected with steam header (5), steam header (5) upper end is connected with jet chimney (7) lower end, steam pipe (7) upper end and condensation segment
(8) upper end is connected, and the lower end of condensation segment (8) is connected with the upper end of condensate pipe (12), condensate pipeline (12) lower end and liquid work mistake
It filters device (13) import to be connected, liquid working substance filter device (13) outlet passes through force (forcing) pump (14), antisludging equipment (20) and ultra micro mist
Film generator (15) is connected, and ultra micro mist film generator (15) is built in fin heat exchange pipe row's (3) pipe, control system (19) and temperature
Spend measuring point (6), demineralized water is intake electronic regulated valve (17), force (forcing) pump (14) is connected.
Evaporator section (2) includes: fin heat exchange pipe row (3), connecting tube (4), steam header (5) in this example, in which: fin
Heat exchanger tube row (3) is placed in flue (1), and fin heat exchange pipe row (3) is connected by connecting tube (4) with steam header (5), vapor collection
Case (5) position is higher than fin heat exchange pipe and arranges (3)
Condensation segment (8) includes: shell (9), steam-water heat exchanging tube bank (10), wherein steam-water heat exchanging pipe tube bank (10) in this example
For several set of heat exchange tubes at tube bank be laterally disposed in shell (9).
Ultra micro mist film generating device includes: liquid working substance filter device (13), force (forcing) pump (14), antisludging equipment in this example
(20), ultra micro mist film generator (15).Wherein ultra micro mist film generator (15) is placed in fin heat exchange pipe row's (3) pipe.
Control system (19) includes: demineralized water water inlet electronic regulated valve (17), temperature point (6), force (forcing) pump in this example
(14)。
This example actual moving process: high-temperature flue gas is arranged by the fin heat exchange pipe of evaporator section, with the circulatory mediator in pipe
Heat exchange, smoke temperature reduce；Working medium in finned tube is to follow through ultra micro mist film generating device what fin heat exchange pipe comb inner wall was formed
Ring working medium liquid film, liquid film absorb the heat of flue gas, undergo phase transition, and rapid vaporization forms saturated vapor, by connecting tube, vapor collection
After case, jet chimney, into the shell of condensation segment, exchanges heat with the demineralized water being heated, water is condensed into after heat release and is passed through
The reflux of condensate down-comer completes a circulation through liquid working substance filter device, force (forcing) pump, antisludging equipment to ultra micro mist film generator.
In this example, the demineralized water that need to be heated enters after electronic regulated valve in the steam-water heat exchanging tube bank of condensation segment, with
Cycle fluid in the housing exchanges heat, and is transported to the confession of demineralized water main pipe after certain temperature is increased to after demineralized water heat absorption
Used in production.
Temperature point of the present invention, electronic regulated valve constitute closed-loop control by PLC control system, pass through monitoring temperature point
Temperature, automatically adjust the electrical adjustment valve opening that is heated on demineralized water inlet pipeline, adjust desalination water flow, controlled with this
Condensation segment steam-water heat exchanging rate processed stablizes measuring point temperature in set temperature, to reach evaporator section fin heat exchange pipe in flue
Wall temperature is controllable, so that heat exchanger tube wall temperature is consistently higher than flue gas acid dew point temperature, it is ensured that system safety operation.
The present embodiment is a coal-fired boiler in power plant, and 150 DEG C of flue-gas temperature, acid dew-point temperature is 85 DEG C, and flue gas is through pervaporation
Section is directly contacted with the outer surface of fin heat exchange pipe row, and temperature drops after the cycle fluid in flue gas and finned tube row carries out heat exchange
Down to 110 DEG C.
The uniform circulation working medium liquid film formed through ultra micro mist film generator in fin heat exchange pipe row's inner tubal wall, by flue gas
Afterwards, it undergoes phase transition, vaporization forms saturated vapor, and saturated vapor is by entering condensation segment after connecting tube, steam header, steam pipe
Shell condenses into water with being heated after demineralized water is exchanged heat in heat exchanger tube in shell, and condensate is back to by condensate pipe
Liquid working substance filter device, finally to ultra micro mist film generator formed circulation loop, circulatory mediator in this circulation loop with vapour,
Two phase of liquid moves in circles, and realizes the transmitting of heat.
In condensation segment, 25 DEG C of the demineralized water that is heated passes through electrical adjustment regulating valve, restrains into condensation segment steam-water heat exchanging
It is interior, after being steam heated to 90 DEG C by cycle fluid in shell, into demineralized water main pipe.
Signal is sent electronic regulated valve, timely adjustment electronic regulated valve by monitoring temperature point temperature by control system
Aperture, adjusting are heated desalination water flow, stablize measuring point temperature at 95 DEG C, and evaporator section finned tube wall surface is also maintained at 95 DEG C,
Acid dew point higher than 85 DEG C effectively prevents the acid dew corrosion of heat exchanger.When temperature point value is less than 95 DEG C, it is rotten to generate acid dew
The risk of phenomena such as erosion, dust stratification will increase, and at this moment, the temperature signal of actual measurement will be fed back to electrical adjustment by control system
Valve adjusts its aperture, and reduction is heated working medium flow, makes measuring point temperature recovery and stablizes at 95 DEG C.When temperature point value is greater than
At 95 DEG C, exhaust gas temperature is increased, and fume afterheat cannot make full use of.At this moment, control system will be anti-the temperature signal of actual measurement
It feeds electronic regulated valve, adjusts its aperture, increase is heated working medium flow, decline measuring point temperature and stablize at 95 DEG C, maximum
Limit ground Mist heat recovering.
Finally make to recycle by control system timely adjustment electrical adjustment valve opening by monitoring steam pipe vapor (steam) temperature
Medium temperature remains at 95 DEG C or so, and evaporator section fin heat exchange pipe row's wall surface temperature also remains at 95 DEG C or so, height
In 10 DEG C of dew-point temperature, film-type evaporation phase-change heat-exchanger outlet smoke temperature is maintained at 110 DEG C or so.The present invention is avoiding acid dew corrosion
Under the premise of, exhaust gas temperature is reduced to the maximum extent, improves boiler efficiency.
Claims (6)
1. a kind of film-type evaporation phase-change heat-exchange water heater characterized by comprising evaporator section (2), steam pipe (7), condensation segment
(8), condensate pipe (12), ultra micro mist film generating device and control system (19), it is characterised in that: the evaporator section (2) is placed in cigarette
In road (1), the upper end of evaporator section (2) is connected with the lower end of steam pipe (7), upper end and steam pipe (7) of the condensation segment (8)
Upper end is connected, and the lower end of condensation segment (8) is connected with the upper end of condensate pipe (12), and the lower end of condensate pipe (12) passes through the ultra micro mist
Liquid working substance filter device (13), force (forcing) pump (14), antisludging equipment (20) and the ultra micro mist film generator (15) of film generating device with
Evaporator section (2) fin heat exchange pipe row (3) be connected, control system (19) respectively with temperature point (6), electronic regulated valve (17) and
Force (forcing) pump (14) is connected；
The ultra micro mist film generating device, comprising: liquid working substance filter device (13), force (forcing) pump (14), antisludging equipment (20), ultra micro
Mist film generator (15)；Wherein: liquid working substance filter device (13) upper end is connected with condensate pipe (12) lower end, and the other end is logical
Be overpressurized pump (14), antisludging equipment (20) is connected with ultra micro mist film generator (15), ultra micro mist film generator (15) is placed in evaporator section
(2) in fin heat exchange pipe row's (3) pipe, ultra micro water mist is sprayed to heat transfer tube wall and forms mist film in inner wall.
2. film-type evaporation phase-change heat-exchange water heater according to claim 1, characterized in that the condensation segment includes:
Shell (9), steam-water heat exchanging tube bank (10), in which: steam-water heat exchanging tube bank (10) arranges the inside for being placed in shell (9) laterally side by side；Shell
Body (9) top is provided with safety valve, exhaust valve (11), steam inlet, and shell (9) lower end is provided with condensate outlet.
3. film-type evaporation phase-change heat-exchange water heater according to claim 1, characterized in that evaporator section (2) packet
Include: fin heat exchange pipe arranges (3), steam header (5) and connecting tube (4), in which: and the fin heat exchange pipe row (3) is placed in flue,
Connecting tube (4) is connected with fin heat exchange pipe row (3) and steam header (5), and the position of steam header (5) is arranged higher than fin heat exchange pipe
(3) upper end.
4. film-type evaporation phase-change heat-exchange water heater according to claim 1, characterized in that the control system
(19), comprising: electronic regulated valve (17), temperature point (6), force (forcing) pump (14), in which: electronic regulated valve (17) is placed in condensation segment
(8) at demineralized water water inlet (16).
5. film-type evaporation phase-change heat-exchange water heater according to claim 4, characterized in that temperature point (6) is set to
On steam pipe (7), the cycle fluid temperature signal on the inside of steam pipe (7) is fed back to control system (19) by temperature point (6), when
When the temperature signal surveyed deviates normal value, PLC control system is issued a command to electronic regulated valve (17), adjusts valve opening, is adjusted
The whole flow for being heated demineralized water and entering condensation segment (8) stablizes cycle fluid temperature in range of normal value, to guarantee
Heat exchanger heat-exchanging tube wall surface temperature is maintained at dew-point temperature or more.
6. film-type evaporation phase-change heat-exchange water heater according to claim 1, it is characterized in that: the fin heat exchange pipe is arranged
It (3) is Influences of Structure of Spiral Finned Tube side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383115.2A CN105953212B (en) | 2016-06-02 | 2016-06-02 | Film-type evaporation phase-change heat-exchange water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383115.2A CN105953212B (en) | 2016-06-02 | 2016-06-02 | Film-type evaporation phase-change heat-exchange water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105953212A CN105953212A (en) | 2016-09-21 |
| CN105953212B true CN105953212B (en) | 2019-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610383115.2A Expired - Fee Related CN105953212B (en) | 2016-06-02 | 2016-06-02 | Film-type evaporation phase-change heat-exchange water heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN105953212B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871150B (en) * | 2017-01-23 | 2019-03-05 | 中国科学院广州能源研究所 | HEP flue gas heat-exchange unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001280864A (en) * | 2000-03-30 | 2001-10-10 | Hitachi Ltd | Heat exchanger and manufacturing method therefor |
| CN201110561Y (en) * | 2007-11-15 | 2008-09-03 | 沈国华 | Boiler smoke exhaust waste heat recycling energy-saving device |
| CN102721308B (en) * | 2012-07-04 | 2014-03-12 | 山东山大华特环保工程有限公司 | Phase-change heat exchanger with dust self-blowing function |
| CN203628620U (en) * | 2013-11-29 | 2014-06-04 | 南京加诺能源设备有限公司 | Reinforced composite phase change heat exchanger |
| CN103994681B (en) * | 2014-06-11 | 2016-01-13 | 上海立殊换热技术设备有限公司 | Vertical flue complex phase-change heat exchanger |
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2016
- 2016-06-02 CN CN201610383115.2A patent/CN105953212B/en not_active Expired - Fee Related
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| CN105953212A (en) | 2016-09-21 |
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