CN204952337U - Wet flue gas desulfurization heat pipe formula heat transfer defogging device - Google Patents

Wet flue gas desulfurization heat pipe formula heat transfer defogging device Download PDF

Info

Publication number
CN204952337U
CN204952337U CN201520732121.5U CN201520732121U CN204952337U CN 204952337 U CN204952337 U CN 204952337U CN 201520732121 U CN201520732121 U CN 201520732121U CN 204952337 U CN204952337 U CN 204952337U
Authority
CN
China
Prior art keywords
flue gas
heat exchanger
absorption tower
heat pipe
flue
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.)
Expired - Fee Related
Application number
CN201520732121.5U
Other languages
Chinese (zh)
Inventor
林崇军
方自林
谭运雄
路林桐
邓立崧
金志勇
魏衍伟
胡宏兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang North Peak Environmental Engineering Co., Ltd.
Original Assignee
HANGZHOU BEIGAOFENG ELECTRIC POWER ENGINEERING DESIGN Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANGZHOU BEIGAOFENG ELECTRIC POWER ENGINEERING DESIGN Co Ltd filed Critical HANGZHOU BEIGAOFENG ELECTRIC POWER ENGINEERING DESIGN Co Ltd
Priority to CN201520732121.5U priority Critical patent/CN204952337U/en
Application granted granted Critical
Publication of CN204952337U publication Critical patent/CN204952337U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • Treating Waste Gases (AREA)

Abstract

The utility model relates to a gas cleaning processing apparatus especially relates to a wet flue gas desulfurization heat pipe formula heat transfer defogging device, including heat conduction tubular heat exchanger and absorption tower. Heat conduction tubular heat exchanger includes smoke box, heat pipe and sweet -water tank, is provided with high temperature flue gas inlet and low temperature exhanst gas outlet in the smoke box left and right sides. The heat pipe sets up inside the smoke box including heat absorption section and heat radiating section, heat absorption section, and heat radiating section sets up and contacts with the demineralized water in the sweet -water tank. Be provided with absorption tower flue gas inlet at the absorption tower middle part, the low temperature exhanst gas outlet passes through the second flue and links to each other with absorption tower flue gas inlet. Be provided with the absorption tower exhanst gas outlet at the top on absorption tower, be provided with lime stone slurry pond in the bottom on absorption tower. Still be provided with a plurality of layers that spray in the absorption tower. Thick liquid evaporation capacity in the device ability greatly reduced absorption tower of this structure has reduced the water content that the clean flue gas of tower, has eliminated the flue gas fog of exhanst gas outlet, has effectively avoided the formation of gypsum rain and acid rain.

Description

A kind of wet desulphurization heat pipe type heat exchanger demister
Technical field
The utility model relates to a kind of flue-gas purification equipment, particularly relates to a kind of wet desulphurization heat pipe type heat exchanger demister.
Background technology
The energy consumption per unit that China " 12 " planning outline proposes declines 16%, and CO2 emission reduces by 17%, and total emissions of major pollutants reduces 8-10%." 12 " are the critical periods of China's socio-economic development transition, realize low carbon development, Green Development is the theme that " 12 " are developed.But due to the particularity of China's energy resource structure, within considerable time, can not there is essence change in the primary energy supply pattern based on coal.Generally speaking, " 12 " period, energy demand also can keep the situation grown at top speed, according to State Grid's project study center about " the medium-term and long-term generating capacity of China and electricity needs development prediction ", by the end of the year 2013, China's coal electricity installed capacity will be 8.47 hundred million kilowatts.Prediction the year two thousand thirty coal Denso machine 12.5-14 hundred million kilowatts; The year two thousand fifty coal Denso machine 14-15 hundred million kilowatts.Large-scale coal fired power generation can bring than now more serious environmental problem.
The coal-burning boiler of current all parts of the country all maybe will add desulfurizer, and wherein more than 90% is wet desulphurization device, and the object of desulfurization own removes pollutants in air SO 2, improve air quality, but the wet flue gas fog that desulfurization Wet chimney is discharged is very large, causes misunderstanding, think that this is dense smoke to neighbouring resident, moreover the flue gas hangover had is very long, the living environment of significantly affecting local resident.In addition, its desulfurization " gypsum rain " phenomenon is a national difficult problem now, the gypsum rain (mainly being carried secretly by droplet) that desulfurizing tower is discharged descends slowly and lightly to the vegetable plot of peasant, the windowsill balcony etc. of resident, brings the inconvenience of life, also often suffer the complaint of local resident to local resident.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of wet desulphurization heat pipe type heat exchanger demister.
For solving the problems of the technologies described above, wet desulphurization heat pipe type heat exchanger demister of the present utility model comprises heat pipe type heat exchanger and absorption tower, and described heat pipe type heat exchanger is connected by the second flue with absorption tower;
Described heat pipe type heat exchanger comprises smoke box, heat pipe and sweet-water tank, is provided with high-temperature flue gas import and low-temperature flue gas outlet in the described smoke box left and right sides; Described heat pipe comprises endotherm section and heat release section, and it is inner that described endotherm section is arranged at described smoke box, and described heat release section is arranged in described sweet-water tank and contacts with demineralized water; The outlet of hot demineralized water and cold demineralized water import is provided with in the described sweet-water tank left and right sides; Described high-temperature flue gas import department is provided with the first flue, and described first flue is for carrying former flue gas;
In the middle part of described absorption tower, be provided with adsorption tower smoke import, described low-temperature flue gas outlet is connected with described adsorption tower smoke import by the second flue; Adsorption tower smoke outlet is provided with at the top on described absorption tower, the bottom on described absorption tower is provided with limestone slurry liquid pool, some spraying layers are also provided with in described absorption tower, the position height of described spraying layer is higher than described adsorption tower smoke import, also comprise the circulation line for circulated sprinkling liquid and circulating pump, described circulation line is arranged between described spraying layer and described limestone slurry liquid pool.
Further, also comprise heat exchanger dust stratification testing agency, described heat exchanger dust stratification testing agency comprises the first pressure transmitter and the second pressure transmitter that are arranged at the first flue and the second flue respectively, and described first pressure transmitter is connected with the second pressure transmitter electricity; Also comprise heat exchanger dust stratification cleaning machine, described heat exchanger dust stratification cleaning machine comprises inlet channel and outlet conduit, described inlet channel stretches into smoke box inside and this end is provided with atomizer, described inlet channel is also provided with control valve, and described outlet conduit is arranged at bottom described smoke box.
Further, demist layer is also provided with on described spraying layer top.
Further, bottom described limestone slurry liquid pool, agitator is provided with.
Further, described first flue is also provided with the first thermocouple.
Further, described second flue is also provided with the second thermocouple.
Further, described hot demineralized water outlet is corresponding with cold demineralized water entrance location structure, and described high-temperature flue gas import is corresponding with low-temperature flue gas exit position structure.
Beneficial effect: the 1. former flue gas that boiler produces enters smoke box from the first flue, its temperature records by the first thermocouple, after entering smoke box, the former flue gas of high-temperature transfers heat to heat-conducting medium in the endotherm section of heat pipe, this heat-conducting medium is generally pure water, because heat pipe inside is partial vacuum state, so the very low easily evaporation of being heated of the boiling point of its internal water, steam is because of lightweight, rise to the heat release section of sweet-water tank, the heat of steam is passed to the demineralized water in sweet-water tank, in heat pipe, steam-condensation becomes water droplet along tube wall downstream to smoke box simultaneously.So repeatedly, just can give demineralized water by the exchange heat of former flue gas, the demineralized water after being heated is expelled to boiler from hot demineralized water outlet, has both reduced former flue-gas temperature, has turn improved the thermal efficiency of boiler.Flue gas after heat exchange process enters absorption tower from adsorption tower smoke import, flue gas contacts with lime stone atomization slurry is reverse in spraying layer, sulfur dioxide in flue gas is washed down, and with the calcium carbonate reaction in lime stone slurry, finally generating product is that gypsum is deposited to bottom limestone slurry liquid pool pipe and removes SO 2after flue gas discharge from the smoke outlet at top, absorption tower.Because the flue-gas temperature entering absorption tower declines, so the slurries evaporation capacity in absorption tower reduces greatly, reduce out the water content of tower neat stress, eliminate the flue gas fog of exhanst gas outlet, effectively prevent the formation of gypsum rain and acid rain.2. the first pressure transmitter in heat exchanger dust stratification testing agency and the second pressure transmitter are used for differential pressure before and after monitoring heat exchanger fume side, when front and back differential pressure reaches alarming value, just start heat exchanger dust stratification cleaning machine, open control valve, inlet channel water inlet utilizes and utilizes atomizer to rinse heat pipe, removes the dust stratification outside heat pipe.3. bottom limestone slurry liquid pool, be provided with agitator, it is uniform and dissolve that agitator can accelerate lime stone, is conducive to and the contacting of flue gas.4. spraying layer top is also provided with demist layer, and demist layer is for removing the large particulate matter in flue gas, and purifying smoke eliminates the pollution to air.5. device technique flow process is short and sweet, and can not affect the overall operation of device because damaging several heat pipes, package unit reliability is high.6. these device no consumption product, just flow through boiler feedwater, make use of the heat of flue gas in device, not loss.7. this device heats demineralized water, and character does not change, and sweet-water tank does not directly contact with smoke box simultaneously, etching problem can not occur.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the overall structure schematic diagram of a kind of wet desulphurization heat pipe type heat exchanger of the utility model demister embodiment;
Description of reference numerals
1-smoke box; 2-absorption tower; 3-first flue; 4-second flue; 5-sweet-water tank; 6-endotherm section; 7-heat release section; 8-first thermocouple; 9-second thermocouple; 10-first pressure transmitter; 11-second pressure transmitter; 12-atomizer; 13-control valve; The import of 14-adsorption tower smoke; 15-adsorption tower smoke exports; 16-agitator; 17-limestone slurry liquid pool; 18-circulating pump; 19-circulation line; 20-spraying layer; 21-demister; 22-inlet channel; 23-outlet conduit.
Detailed description of the invention
Figure 1 shows that the overall structure schematic diagram of a kind of wet desulphurization heat pipe type heat exchanger of the utility model demister embodiment, comprise heat pipe type heat exchanger and absorption tower 2, heat pipe type heat exchanger is connected by the second flue 4 with absorption tower 2.Heat pipe type heat exchanger comprises smoke box 1, heat pipe and sweet-water tank 5, is provided with high-temperature flue gas import and low-temperature flue gas outlet in smoke box 1 left and right sides.Heat pipe comprises endotherm section 6 and heat release section 7, and it is inner that endotherm section 6 is arranged at smoke box 1, and heat release section 7 is arranged in sweet-water tank 5 and contacts with demineralized water.Sweet-water tank 5 left and right sides is provided with the outlet of hot demineralized water and cold demineralized water import, and wherein, hot demineralized water outlet is corresponding with cold demineralized water entrance location structure, and high-temperature flue gas import is corresponding with low-temperature flue gas exit position structure.
The first flue 3, first flue 3 is provided with for carrying former flue gas in high-temperature flue gas import department.In addition, the first flue 3 is provided with the first thermocouple 8, the second flue 4 is provided with the second thermocouple 9.Also comprise heat exchanger dust stratification testing agency, heat exchanger dust stratification testing agency comprises the first pressure transmitter 10 of being arranged at the first flue 3 and the second flue 4 respectively and the second pressure transmitter 11, first pressure transmitter 10 is connected with the second pressure transmitter 11 electricity.Also comprise heat exchanger dust stratification cleaning machine, heat exchanger dust stratification cleaning machine comprises inlet channel 22 and outlet conduit 23, inlet channel 22 stretches into smoke box 1 inside and this end is provided with atomizer 12, and inlet channel 22 is also provided with control valve 13, and outlet conduit 23 is arranged at bottom smoke box 1.
In the middle part of absorption tower 2, be provided with adsorption tower smoke import 14, low-temperature flue gas outlet is connected with adsorption tower smoke import 14 by the second flue 4.Adsorption tower smoke outlet 15 is provided with at the top on absorption tower 2, the bottom on absorption tower 2 is provided with limestone slurry liquid pool 17, bottom limestone slurry liquid pool 17, be provided with agitator 16, it is uniform and dissolve that agitator 16 can accelerate lime stone, is conducive to and the contacting of flue gas.Some spraying layers 20 are also provided with in absorption tower 2, the position height of spraying layer 20 is higher than adsorption tower smoke import 14, demist layer 21 is also provided with on spraying layer 20 top, also comprise the circulation line 19 for circulated sprinkling liquid and circulating pump 18, circulation line 19 is arranged between spraying layer 20 and limestone slurry liquid pool 17.Demist layer 21 is for removing the large particulate matter in flue gas, and purifying smoke eliminates the pollution to air.
The former flue gas that boiler produces enters smoke box 1 from the first flue 3, its temperature records by the first thermocouple 8, after entering smoke box 1, the former flue gas of high-temperature transfers heat to heat-conducting medium in the endotherm section 6 of heat pipe, this heat-conducting medium is generally pure water, because heat pipe inside is partial vacuum state, so the very low easily evaporation of being heated of the boiling point of its internal water, steam is because of lightweight, rise to the heat release section of sweet-water tank, the heat of steam is passed to the demineralized water in sweet-water tank 5, and in heat pipe, steam-condensation becomes water droplet along tube wall downstream to smoke box simultaneously.So repeatedly, just can give demineralized water by the exchange heat of former flue gas, the demineralized water after being heated is expelled to boiler from hot demineralized water outlet, has both reduced former flue-gas temperature, has turn improved the thermal efficiency of boiler.Flue gas after heat exchange process enters absorption tower 2 from adsorption tower smoke import, flue gas contacts with lime stone atomization slurry is reverse in spraying layer 20, sulfur dioxide in flue gas is washed down, and with the calcium carbonate reaction in lime stone slurry, finally generating product is that gypsum is deposited to bottom limestone slurry liquid pool 17 pipe and removes SO 2after flue gas discharge from the smoke outlet at top, absorption tower.Because the flue-gas temperature entering absorption tower declines, so the slurries evaporation capacity in absorption tower reduces greatly, reduce out the water content of tower neat stress, eliminate the flue gas fog of throat, effectively prevent the formation of gypsum rain and acid rain.As preferably, the first pressure transmitter 10 in heat exchanger dust stratification testing agency and the second pressure transmitter 11 are for differential pressure before and after monitoring heat exchanger fume side, when front and back differential pressure reaches alarming value, just start heat exchanger dust stratification cleaning machine, open control valve, inlet channel 22 water inlet utilizes and utilizes atomizer 12 pairs of heat pipes to rinse, and removes the dust stratification outside heat pipe.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (7)

1. a wet desulphurization heat pipe type heat exchanger demister, is characterized in that: comprise heat pipe type heat exchanger and absorption tower (2), described heat pipe type heat exchanger is connected by the second flue (4) with absorption tower (2);
Described heat pipe type heat exchanger comprises smoke box (1), heat pipe and sweet-water tank (5), is provided with high-temperature flue gas import and low-temperature flue gas outlet in described smoke box (1) left and right sides; Described heat pipe comprises endotherm section (6) and heat release section (7), it is inner that described endotherm section (6) is arranged at described smoke box (1), and described heat release section (7) is arranged in described sweet-water tank (5) and contacts with demineralized water; The outlet of hot demineralized water and cold demineralized water import is provided with in described sweet-water tank (5) left and right sides; Described high-temperature flue gas import department is provided with the first flue (3), and described first flue (3) is for carrying former flue gas;
Described absorption tower (2) middle part is provided with adsorption tower smoke import (14), and described low-temperature flue gas outlet is connected with described adsorption tower smoke import (14) by the second flue (4); Adsorption tower smoke outlet (15) is provided with at the top of described absorption tower (2), the bottom of described absorption tower (2) is provided with limestone slurry liquid pool (17), some spraying layers (20) are also provided with in described absorption tower (2), the position height of described spraying layer (20) is higher than described adsorption tower smoke import (14), also comprise the circulation line (19) for circulated sprinkling liquid and circulating pump (18), described circulation line is arranged between described spraying layer (20) and described limestone slurry liquid pool (17).
2. wet desulphurization heat pipe type heat exchanger demister according to claim 1, it is characterized in that: also comprise heat exchanger dust stratification testing agency, described heat exchanger dust stratification testing agency comprises the first pressure transmitter (10) and the second pressure transmitter (11) that are arranged at the first flue (3) and the second flue (4) respectively, and described first pressure transmitter (10) is connected with the second pressure transmitter (11) electricity; Also comprise heat exchanger dust stratification cleaning machine, described heat exchanger dust stratification cleaning machine comprises inlet channel (22) and outlet conduit (23), described inlet channel (22) stretches into smoke box (1) inside and this end is provided with atomizer (12), described inlet channel (22) is also provided with control valve (13), and described outlet conduit (23) is arranged at described smoke box (1) bottom.
3. wet desulphurization heat pipe type heat exchanger demister according to claim 2, is characterized in that: be also provided with demist layer (21) on described spraying layer (20) top.
4. wet desulphurization heat pipe type heat exchanger demister according to claim 2, is characterized in that: described limestone slurry liquid pool (17) bottom is provided with agitator (16).
5. wet desulphurization heat pipe type heat exchanger demister according to claim 2, is characterized in that: on described first flue (3), be also provided with the first thermocouple (8).
6. wet desulphurization heat pipe type heat exchanger demister according to claim 2, is characterized in that: on described second flue (4), be also provided with the second thermocouple (9).
7. the wet desulphurization heat pipe type heat exchanger demister according to any one of claim 1-6, is characterized in that: described hot demineralized water outlet is corresponding with cold demineralized water entrance location structure, and described high-temperature flue gas import is corresponding with low-temperature flue gas exit position structure.
CN201520732121.5U 2015-09-17 2015-09-17 Wet flue gas desulfurization heat pipe formula heat transfer defogging device Expired - Fee Related CN204952337U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520732121.5U CN204952337U (en) 2015-09-17 2015-09-17 Wet flue gas desulfurization heat pipe formula heat transfer defogging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520732121.5U CN204952337U (en) 2015-09-17 2015-09-17 Wet flue gas desulfurization heat pipe formula heat transfer defogging device

Publications (1)

Publication Number Publication Date
CN204952337U true CN204952337U (en) 2016-01-13

Family

ID=55047436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520732121.5U Expired - Fee Related CN204952337U (en) 2015-09-17 2015-09-17 Wet flue gas desulfurization heat pipe formula heat transfer defogging device

Country Status (1)

Country Link
CN (1) CN204952337U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536484A (en) * 2016-02-01 2016-05-04 西安交通大学 Pollutant pretreating tower condensing based on flue gas
CN108114583A (en) * 2017-08-16 2018-06-05 山东天境环保科技有限公司 Control flue gas correlation atmospheric acid particulate matter and low-carbon control haze method and system
CN109395546A (en) * 2018-12-21 2019-03-01 聊城信源集团有限公司 A kind of fume environment protection desulfurization total system
CN110090520A (en) * 2019-05-13 2019-08-06 安徽工业大学 A kind of flue gas end based on phase transformation is inversely dehydrated refined dedusting device
CN110090519A (en) * 2019-05-13 2019-08-06 安徽工业大学 A kind of flue gas end dehydration refined dedusting device based on phase transformation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536484A (en) * 2016-02-01 2016-05-04 西安交通大学 Pollutant pretreating tower condensing based on flue gas
CN105536484B (en) * 2016-02-01 2018-08-21 西安交通大学 A kind of pollutant pre-corrosion tower based on flue gas condensing
CN108114583A (en) * 2017-08-16 2018-06-05 山东天境环保科技有限公司 Control flue gas correlation atmospheric acid particulate matter and low-carbon control haze method and system
CN108114583B (en) * 2017-08-16 2021-06-25 山东天境环保科技有限公司 Method and system for controlling flue gas-related atmospheric acidic particulate matters and controlling haze with low carbon
CN109395546A (en) * 2018-12-21 2019-03-01 聊城信源集团有限公司 A kind of fume environment protection desulfurization total system
CN110090520A (en) * 2019-05-13 2019-08-06 安徽工业大学 A kind of flue gas end based on phase transformation is inversely dehydrated refined dedusting device
CN110090519A (en) * 2019-05-13 2019-08-06 安徽工业大学 A kind of flue gas end dehydration refined dedusting device based on phase transformation

Similar Documents

Publication Publication Date Title
CN204952337U (en) Wet flue gas desulfurization heat pipe formula heat transfer defogging device
CN103968401B (en) Dedusting-desulfurization-UTILIZATION OF VESIDUAL HEAT IN integral system of low PM2.5 discharge
CN106949446B (en) It is matched in the high temperature and pressure denitration waste heat boiler of catalytic cracking unit
CN203336624U (en) Flue gas moisture recovery system
CN107120714A (en) A kind of thermal power plant boiler fume afterheat is used for the whole yearization comprehensive utilization energy conserving system of central heating or heating boiler feed water
CN104100994A (en) Boiler energy saving and emission reduction system based on flue gas waste heat recovery and reheating technology
CN102407070B (en) Composite equipment for flue gas waste heat recovery and dust cleaning
CN205783036U (en) A kind of power-plant flue gas system heat-exchanger rig
CN103968406A (en) Water gas smoke-smoke heat exchanging system and method capable of preventing low-temperature corrosion
TWM558661U (en) Smoke gas white-elimination system for wet desulphurization
CN106247371A (en) A kind of coal steam-electric plant smoke comprehensive waste-heat utilizing device
CN205517263U (en) Flue gas heat exchange energy conservation SOx/NOx control device
CN203100463U (en) Waste heat recycling device for titanium dioxide calcining tail gas
CN204042943U (en) Desulfurization system for thermal power plant
CN203731451U (en) Flue gas desulfurating and exhausting system of boiler
CN102755821A (en) Carbon calcining furnace waste gas desulfurizing and dust-removing method and device
CN204147740U (en) The ultra-clean exhaust system of a kind of coal steam-electric plant smoke ultralow temperature
CN201973698U (en) Flue gas waste heat recovery device
CN105889963B (en) A kind of heat-exchanger rig for wet desulfurization system
CN209530520U (en) A kind of flue gas disappears white system
CN210145833U (en) White smoke plume remove device with thick liquid cooling tray
CN210332239U (en) Power plant flue gas emission system and desulphurization unit
CN208832496U (en) A kind of ventilation air methane oxidation device low-temperature flue gas waste heat utilizes system
CN204395731U (en) Pit-head power station low cost carbon dioxide capture system
CN204665243U (en) A kind of coal-burning boiler two-stage smoke processing system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 1506 Xihu District, Zhejiang, Wensanlu Road, No. 310000, room 508,

Patentee after: Zhejiang North Peak Environmental Engineering Co., Ltd.

Address before: 1506 Xihu District, Zhejiang, Wensanlu Road, No. 310000, room 508,

Patentee before: Hangzhou Beigaofeng Electric Power Engineering Design Co., Ltd.

CP01 Change in the name or title of a patent holder
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160113

Termination date: 20190917

CF01 Termination of patent right due to non-payment of annual fee