CN104776639A - High-efficiency smoke heat recovery device - Google Patents
High-efficiency smoke heat recovery device Download PDFInfo
- Publication number
- CN104776639A CN104776639A CN201410012686.6A CN201410012686A CN104776639A CN 104776639 A CN104776639 A CN 104776639A CN 201410012686 A CN201410012686 A CN 201410012686A CN 104776639 A CN104776639 A CN 104776639A
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- CN
- China
- Prior art keywords
- heat
- falling film
- heat exchanger
- transfer device
- heat transfer
- 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.)
- Withdrawn
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- 239000000779 smoke Substances 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000011552 falling film Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 29
- 239000003546 flue gas Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 230000003020 moisturizing effect Effects 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 206010010741 Conjunctivitis Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 206010047571 Visual impairment Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940059936 lithium bromide Drugs 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 208000007442 rickets Diseases 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a high-efficiency smoke heat recovery device. The high-efficiency smoke heat recovery device is characterized by comprising a falling film heat exchanger, a condensation heat exchanger, a pure water filter, a condensate pump, a heating medium water pump and a steam compressor, wherein a smoke inlet and a smoke outlet are formed in the falling film heat exchanger; a heat exchange oil inlet and a heat exchange oil outlet are formed in the condensation heat exchanger; and the bottom of the falling film heat exchanger is connected with the bottom of the condensation heat exchanger through a pipe and the heating medium water pump. The high-efficiency smoke heat recovery device can realize high-efficiency recovery of smoke sensible heat and latent heat, and can change the recovered heat to the heat output with higher temperature for final output of a boiler under the condition of not changing a traditional boiler system. A medium with higher temperature can be output when a lower discharge temperature is kept. Meanwhile, the high-efficiency smoke heat recovery device effectively recovers moisture in discharged gas, reduces the influence of the discharged gas on the increment of atmospheric moisture, and effectively reduces the haze forming probability.
Description
Technical field
The present invention relates to a kind of heat reclamation device, particularly relate to a kind of high effective flue gas heat reclamation device.
Background technology
What the aerosol systems that the non-water such as the dust in haze air, sulfuric acid, nitric acid become thing to form caused dysopia is haze.Haze very harmful, can cause people to the harm of body respiratory tract, bronchial astehma, lung cancer, conjunctivitis, Rickets etc., have a strong impact on the life of people.Pollutant mainly in air of the origin cause of formation of haze and moisture form colloidal sol, thus are difficult to diffusion.The main focus administered for haze at present has all been placed on the discharge of pollutant, thus have ignored the another one main reason of haze, and that is exactly that atmospheric water content is too high.Therefore the regulation effect for haze is not obvious, drops into huge.
Current China is granular material discharged in order to reduce, carry forward vigorously coal and change gas, the boiler of power plant, factory etc. is made into burn natural gas by burning coal, although reduce granular material discharged like this, but create the discharge of a large amount of steam, these steam are easy to form mist in atmosphere, and are combined into aerosol with pollutants in air further thus form wide range of haze.If use coal-burning boiler, by strengthening the sulfide of boiler emission and the process of deleterious particle, discharge standard can be improved and solves the too high problem of pollutant effulent.But when using gas fired-boiler due at present not for the standard of steam discharge, therefore causing a large amount of steam and being discharged, causing one of inducement becoming haze.And also containing a large amount of heat energy in the hot gas of these discharges, directly enter in air the waste that can cause resource.Although usually use simple heat reclamation device in gas fired-boiler and coal-burning boiler in prior art, allow discharge flue gas contact with air, carry out heat exchange.Make the air preheat entering boiler, produce high heat and export.But because air specific heat is little, in the middle of flue gas, heat is larger, and therefore this simple and easy heat reclamation device is not high for the organic efficiency of heat.In addition Japanese invention vacuum boiler, buds out into popularity at home.But conventional vacuum boiler is when inner heating agent water coke slurry, the heat medium water being used in heat trnasfer is pure water, and as heat transfer medium, have employed vacuum extractor to make heat exchange efficiency higher, conventional vacuum boiler exhaust temperature declines greatly, but has distinct disadvantage at present.Because vacuum boiler output temperature is lower, be no more than 90 degree, therefore can only export hot water in many instances, the medium more than 90 degree can not be exported.Therefore at present recuperation of heat, comprises sensible heat and latent heat, comprises and changes boiler immanent structure, or improves boiler emission recuperation of heat and have its weak point, is difficult to meet realize high efficiency flue gas heat recovery and can also meet need of work and export higher temperature heat.
Summary of the invention
The present invention completes to solve above-mentioned deficiency of the prior art, the art of this patent of the present invention adopts the present invention can when not changing existing steam generator system, the recuperation of heat of high efficiency obvious heat of smoke and latent heat can be realized, can be the thermal output of higher temperature recuperation of heat thermal change, may be used for the final output of boiler.Higher temperature medium can be exported at the lower exhaust temperature of maintenance.The present invention simultaneously has effectively reclaimed the moisture in emission gases, reduces the impact that emission gases increases for atmospheric water, effectively reduces the formation probability of haze.
Technical scheme of the present invention is as described below:
1, a kind of high effective flue gas heat reclamation device, it is characterized in that described high effective flue gas heat reclamation device comprises Falling film heat transfer device, condensing heat exchanger, pure water filter, condensate pump, heating agent water pump, vapour compression machine, described Falling film heat transfer device is provided with smoke inlet, exhanst gas outlet, described condensing heat exchanger is provided with heat exchange oil-in, heat exchange oil export, is connected with bottom condensing heat exchanger with heating agent water pump by pipeline bottom described Falling film heat transfer device.
2, the high effective flue gas heat reclamation device according to technical scheme 1, is characterized in that: be provided with moisturizing entrance bottom described Falling film heat transfer device, and described moisturizing entrance is connected with bottom water compensating valve and Falling film heat transfer device by pure water filter.
3, the high effective flue gas heat reclamation device according to technology 1 or 2, is characterized in that: be provided with condensate pump bottom described Falling film heat transfer device and condensate water exports, and described Falling film heat transfer device top is connected with bottom condensing heat exchanger with pipeline by throttle expansion valve.
4, the high effective flue gas heat reclamation device according to technical scheme 1,2 or 3, it is characterized in that described condensing heat exchanger top is provided with fixed gas discharger, described Falling film heat transfer device bottom is connected with condensing heat exchanger top with vapour compression machine by pipeline.
Accompanying drawing explanation
Fig. 1 high effective flue gas heat reclamation device of the present invention structural representation
1 ... Falling film heat transfer device 2 ... smoke inlet 3 ... exhanst gas outlet 4 ... condensate pump 5 ... condensate water outlet 6 ... pure water filter 7 ... moisturizing entrance 8 ... water compensating valve 9 ... heating agent water pump
10 ... heat exchange oil export 11 ... heat exchange oil-in
12 ... fixed gas discharger 13 ... condensing heat exchanger 14 ... throttle expansion valve
15 ... vapour compression machine.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the structure of high effective flue gas heat reclamation device of the present invention and working method are described in further details.
High effective flue gas heat reclamation device of the present invention, please refer to Fig. 1, it comprises Falling film heat transfer device 1, condensing heat exchanger 13, pure water filter 6, condensate pump 4, heating agent water pump 9, vapour compression machine 15, described Falling film heat transfer device 13 is provided with smoke inlet 2, exhanst gas outlet 3, described condensing heat exchanger 13 is provided with heat exchange oil-in 11, heat exchange oil export 10, is connected with bottom condensing heat exchanger 13 with heating agent water pump 9 by pipeline bottom described Falling film heat transfer device 1.
In the preferred technical scheme peace of the present invention, be provided with moisturizing entrance 7 bottom described Falling film heat transfer device 13, and described moisturizing entrance 7 is connected with bottom water compensating valve 8 and Falling film heat transfer device 1 by pure water filter 6.
Bottom Falling film heat transfer device described in another optimal technical scheme of the present invention, be provided with condensate pump 4 export 5 with condensate water, described Falling film heat transfer device 1 top is connected with bottom condensing heat exchanger 13 with pipeline by throttle expansion valve 14.
In another optimal technical scheme of the present invention, described condensing heat exchanger 13 top is provided with fixed gas discharger 12, and described Falling film heat transfer device 1 bottom is connected with condensing heat exchanger 13 top with vapour compression machine 9 by pipeline.
Below in conjunction with Fig. 1, the operation principle of high effective flue gas heat reclamation device of the present invention is described in detail, as shown in Figure 1:
The flue gas of boiler combustion discharge enters falling film evaporator from smoke inlet 2, with heat medium water sufficient heat exchange in falling film evaporator 1, heat medium water is by the moisture condensation on heat-exchange tube in heat smoke, and converge in bottom falling film evaporator, flue gas is after treatment discharged from exhanst gas outlet 3, and moisture greatly reduces.The water condensed in flue gas is deposited on bottom falling film evaporator 1, is pumped by condensate pump 4, discharges from condensate water outlet 5, it can as the moisturizing of heat medium water after passing through contaminant filter, thus can water source be made full use of, reduce costs, also may be used for irrigation water, life cleaning water or water for industrial use.Heat medium water in falling film evaporator flow into falling film evaporator from throttle expansion valve 14, heat exchange is carried out with flue gas in decline process, owing to vacuumizing in falling film evaporator, therefore heat medium water can seethe with excitement at a lower temperature heat absorption heat medium water evaporation after water vapour enter into condenser heat exchanger 13 by vapour compression machine 15, and become condensed water after contacting with hot oil pipeline wherein, release heat, the oil entered from heat exchange oil-in is discharged from heat exchange oil export after absorbing the heat of steam condensation release, condensate water is gathered in bottom condensing heat exchanger, and enter into by bottom pipe and throttle expansion valve the heat that flue gas is continued to absorb in Falling film heat transfer device top.
Pressure in Falling film heat transfer device is close to 0.02-0.5 atmospheric pressure, and keep this pressure, when system is just run, by fixed gas discharger 12, intrasystem air is discharged to outside system, in running, incondensable gas in system can be extracted out by fixed gas discharger 12, the subnormal ambient in keeping system.
Described moisturizing entrance 7 and pure water filter 6 can to supplementing water media in system, and owing to being negative pressure in system, as long as therefore open water compensating valve, pure water can be inhaled in system.Throttle expansion valve 14 can limit the amount of heat medium water, keeps appropriate water to enter into falling film evaporator.
The heating agent used in the present invention is water, and other conventional intermediate liquid also can be used as heating agent, such as, use lithium-bromide solution etc.Flue-gas temperature work can be improved, to adapt to various recovery occasion.
beneficial effect
Vacuum flashing is combined with vacuum and steam compress technique by the present invention, employs the mode of falling film condenser and compression condensation heat exchange, is provided with fixed gas and discharges and vaccum retaining device.Water in condenser flue gas may be used for the moisturizing of system own.Comprehensive discharge performance is good, the sensible heat in the flue gas of discharge and the sufficient recycling of latent heat, and this device is keeping high recovery efficiency simultaneously compared with general heat reclamation device, and the thermal medium temperature of output is higher, is convenient to the later stage fully sharp.Because the present invention can moisture effectively in recovered flue gas, because this reducing it for the contribution rate producing haze weather, available protecting environment, takes full advantage of the water resource in flue gas and thermal resource, serves the effect of energy-saving pollution-proof.
Above-mentionedly only several specific embodiments in the present invention to be illustrated; but can not as protection scope of the present invention; every according to the change of the equivalence done by design spirit in the present invention or to modify or equal proportion zooms in or out, all should think and fall into protection scope of the present invention.
Claims (4)
1. a high effective flue gas heat reclamation device, it is characterized in that described high effective flue gas heat reclamation device comprises Falling film heat transfer device, condensing heat exchanger, pure water filter, condensate pump, heating agent water pump, vapour compression machine, described Falling film heat transfer device is provided with smoke inlet, exhanst gas outlet, described condensing heat exchanger is provided with heat exchange oil-in, heat exchange oil export, is connected with bottom condensing heat exchanger with heating agent water pump by pipeline bottom described Falling film heat transfer device.
2. high effective flue gas heat reclamation device according to claim 1, is characterized in that: be provided with moisturizing entrance bottom described Falling film heat transfer device, and described moisturizing entrance is connected with bottom water compensating valve and Falling film heat transfer device by pure water filter.
3. high effective flue gas heat reclamation device according to claim 1 and 2, it is characterized in that: be provided with condensate pump bottom described Falling film heat transfer device and condensate water exports, described Falling film heat transfer device top is connected with bottom condensing heat exchanger with pipeline by throttle expansion valve.
4. high effective flue gas heat reclamation device according to claim 1, is characterized in that described condensing heat exchanger top is provided with fixed gas discharger, and described Falling film heat transfer device bottom is connected with condensing heat exchanger top with vapour compression machine by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012686.6A CN104776639A (en) | 2014-01-13 | 2014-01-13 | High-efficiency smoke heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012686.6A CN104776639A (en) | 2014-01-13 | 2014-01-13 | High-efficiency smoke heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104776639A true CN104776639A (en) | 2015-07-15 |
Family
ID=53618261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410012686.6A Withdrawn CN104776639A (en) | 2014-01-13 | 2014-01-13 | High-efficiency smoke heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104776639A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928351A (en) * | 2016-06-17 | 2016-09-07 | 四川恒飞机电设备有限公司 | Air heat energy recovery device for printing equipment |
| CN108071930A (en) * | 2018-01-15 | 2018-05-25 | 苏州欧拉透平机械有限公司 | For discharging the device of on-condensible gas and condensation water and its application method |
| CN108413656A (en) * | 2018-04-02 | 2018-08-17 | 华能国际电力股份有限公司 | System and method for condensing, dehumidifying and reheating flue gas by using compression heat pump |
| CN112128791A (en) * | 2020-09-14 | 2020-12-25 | 张斯瑞 | Deep waste heat recovery method for smoke discharge of gas-fired boiler |
| CN112161289A (en) * | 2020-10-09 | 2021-01-01 | 广州形银科技有限公司 | Heating device utilizing heat of boiler |
| CN113091082A (en) * | 2019-12-23 | 2021-07-09 | 大唐环境产业集团股份有限公司 | Flue gas waste heat and moisture recycle's system |
| CN113905596A (en) * | 2021-11-05 | 2022-01-07 | 上海柯茂机械有限公司 | A liquid-cooled inverter in a falling film orifice system |
| CN116002795A (en) * | 2023-02-09 | 2023-04-25 | 中国恩菲工程技术有限公司 | Waste heat recovery and wastewater treatment system |
-
2014
- 2014-01-13 CN CN201410012686.6A patent/CN104776639A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928351A (en) * | 2016-06-17 | 2016-09-07 | 四川恒飞机电设备有限公司 | Air heat energy recovery device for printing equipment |
| CN105928351B (en) * | 2016-06-17 | 2019-02-15 | 四川恒飞机电设备有限公司 | A kind of printing equipment air heat energy recyclable device |
| CN108071930A (en) * | 2018-01-15 | 2018-05-25 | 苏州欧拉透平机械有限公司 | For discharging the device of on-condensible gas and condensation water and its application method |
| CN108071930B (en) * | 2018-01-15 | 2023-09-15 | 苏州欧拉透平机械有限公司 | Device for discharging non-condensable gases and condensed water and method of use thereof |
| CN108413656A (en) * | 2018-04-02 | 2018-08-17 | 华能国际电力股份有限公司 | System and method for condensing, dehumidifying and reheating flue gas by using compression heat pump |
| CN113091082A (en) * | 2019-12-23 | 2021-07-09 | 大唐环境产业集团股份有限公司 | Flue gas waste heat and moisture recycle's system |
| CN112128791A (en) * | 2020-09-14 | 2020-12-25 | 张斯瑞 | Deep waste heat recovery method for smoke discharge of gas-fired boiler |
| CN112161289A (en) * | 2020-10-09 | 2021-01-01 | 广州形银科技有限公司 | Heating device utilizing heat of boiler |
| CN112161289B (en) * | 2020-10-09 | 2022-12-16 | 珠海映创新能源科技有限公司 | Heating device utilizing heat of boiler |
| CN113905596A (en) * | 2021-11-05 | 2022-01-07 | 上海柯茂机械有限公司 | A liquid-cooled inverter in a falling film orifice system |
| CN116002795A (en) * | 2023-02-09 | 2023-04-25 | 中国恩菲工程技术有限公司 | Waste heat recovery and wastewater treatment system |
| CN116002795B (en) * | 2023-02-09 | 2024-11-22 | 中国恩菲工程技术有限公司 | Waste heat recovery and wastewater treatment system |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150715 |