CN103925025B - A kind of boat diesel engine waste gas afterheat recovery unit - Google Patents

A kind of boat diesel engine waste gas afterheat recovery unit Download PDF

Info

Publication number
CN103925025B
CN103925025B CN201410158184.4A CN201410158184A CN103925025B CN 103925025 B CN103925025 B CN 103925025B CN 201410158184 A CN201410158184 A CN 201410158184A CN 103925025 B CN103925025 B CN 103925025B
Authority
CN
China
Prior art keywords
way valve
heat boiler
heat exchanger
exhaust heat
waste gas
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.)
Active
Application number
CN201410158184.4A
Other languages
Chinese (zh)
Other versions
CN103925025A (en
Inventor
周松
张贺付
朱元清
刘佃涛
王治宇
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.)
Harbin Engineering University
Original Assignee
Harbin Engineering University
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 Harbin Engineering University filed Critical Harbin Engineering University
Priority to CN201410158184.4A priority Critical patent/CN103925025B/en
Publication of CN103925025A publication Critical patent/CN103925025A/en
Application granted granted Critical
Publication of CN103925025B publication Critical patent/CN103925025B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The object of the present invention is to provide a kind of boat diesel engine waste gas afterheat recovery unit, mainly comprise the equipment such as boat diesel engine, exhaust heat boiler, turbine LP rotors, condenser, corrosion-resistant plate fin heat exchanger and desulfurizing tower.In the present invention, boat diesel engine waste gas produces steam through exhaust heat boiler, and some vapor is used for boats and ships consumption vapour equipment, and all the other steam input turbine LP rotors produces electric energy.For improving the boat diesel engine waste gas residual heat recovery rate, improving the desulphurization efficiency of desulfurizing tower simultaneously, between exhaust heat boiler and desulfurizing tower, arranging that corrosion-resistant plate fin heat exchanger reduces exhaust gas temperature further.The present invention can fully reclaim boat diesel engine waste gas residual heat, increase UTILIZATION OF VESIDUAL HEAT IN scope, improve utilization rate of waste heat, and effectively can alleviate the cold end corrosion of exhaust heat boiler back-end surfaces, overcome that prior art energy saving is poor, the feature of environmental protection is poor, cost is high and the defect such as poor reliability, reach energy-saving and environmental protection, reduce costs and improve the object of equipment reliability.

Description

A kind of boat diesel engine waste gas afterheat recovery unit
Technical field
What the present invention relates to is a kind of marine diesel machine, specifically boat diesel engine waste gas utilization device.
Background technique
Current energy problem has become an all in all problem in economic development, and boats and ships are means of transportation that energy ezpenditure is huge, and high energy consumption makes vessel motion cost increase on the one hand, also brings serious environmental problem on the other hand.
EEDI (EnergyEfficiencyDesignIndex, the new ship Energy design index) rule of the up-to-date formulation of International Maritime Organization IMO has clear and definite requirement to emissions reduction, reduction boats and ships energy consumption.The low-yield utilization ratio of boats and ships, except by except the fuel cost of great number, also by the face of extra fine, to compensate the destruction to environment.Therefore, boats and ships energy consumption is effectively reduced very urgent with discharge.The equipment of fuel is used to have diesel main engine, subsidiary engine and donkey boiler etc. in boats and ships.Wherein, diesel main engine consume fuel is maximum, fuel burns sent net quantity of heat in cylinder of diesel engine, 45 ~ 50% are only had to change mechanical work into, waste gas has taken away the energy accounting for fuel gross calorific power 25 ~ 30%, because diesel engine row temperature is higher, heat energy from waste gas quality is higher, has very large acting potentiality.Diesel residual heat reclaiming system effectively can utilize exhaust energy, and produces the electric power output being equivalent to main engine power 11%.If diesel main engine waste gas can be utilized to generate electricity or provide steam for supplementary equipment thermal source, then can Substitute For Partial subsidiary engine and donkey boiler, reach the effect of energy-saving and emission-reduction.The waste heat of abundant recovery marine main engine is significant.
The mean temperature of marine low speed diesel exhaust is at about 260 DEG C, about 95 DEG C are reduced to through ultralow temperature heat boiler outlet exhaust gas temperature, lower than acid dew-point temperature, exhaust heat boiler back-end surfaces will be corroded, shorten exhaust heat boiler working life, increase residual neat recovering system cost, reduce its reliability.For avoiding the cold end corrosion of exhaust heat boiler back-end surfaces, heat boiler outlet place flue-gas temperature need be controlled at about 160 DEG C.In addition, the desulphurization efficiency of exhaust gas entrance temperature on Wet Flue Gas Desulfurization Technique has larger impact, and when temperature is too high, desulphurization efficiency is very low.
It is the exhaust heat recovery generator system proposing a kind of boats and ships incinerator and diesel powerplant in the patent " residual neat recovering system of a kind of boats and ships incinerator and power plant and recovery method " of 201310325318.2 at application number, the total hot flue of this Operation system setting, to pass into exhaust heat boiler and produces high-temperature steam supply gas utilization unit and generate electricity by high-temp waste gas.Although the energy of high-temp waste gas is utilized further, and heat boiler outlet exhaust gas temperature is reduced to about 170 DEG C, waste gas now also has very high value.
Be propose a kind of wet flue gas desulfurization tower being provided with pre-spraying ventilating device in the patent " wet flue gas desulfurization tower " of 201020197317.6 at application number.Although pre-spraying ventilating device significantly reduces desulfurizing tower inlet flue gas temperature, thus improves the desulphurization efficiency of desulfurizing tower, this process causes the waste of a large amount of gas energy.
Summary of the invention
The object of the present invention is to provide while minimizing exhaust heat boiler back-end surfaces and the corrosion of cryogenic heat exchanger surface low-temperature again can abundant recovery waste heat boiler export waste gas residual heat, and the SOX that can more effectively wash in boat diesel engine waste gas and particle, reduce a kind of boat diesel engine waste gas afterheat recovery unit of the pollution to naval air environment.
The object of the present invention is achieved like this:
A kind of boat diesel engine waste gas afterheat recovery unit of the present invention, it is characterized in that: comprise desulfurizing tower, heat exchanger, booster fan, exhaust heat boiler, drum, hot well, the first-six three-way valve, the first-the second water pump, boat diesel engine waste gas passes into the lower end of exhaust heat boiler through the first three-way valve, discharge from the upper end of exhaust heat boiler again, after booster fan pressurization, pass into heat exchanger through the 4th three-way valve, after the 5th three-way valve passes into desulfurizing tower washing desulphurization, enter air, the outlet of booster fan is connected with the 4th three-way valve, 4th three-way valve is connected with the hot fluid import of heat exchanger, the hot fluid outlet ports of heat exchanger is connected with the 5th three-way valve, 5th three-way valve is connected with the exhaust gas inlet of desulfurizing tower, 4th three-way valve is connected with the 6th three-way valve, 5th three-way valve is connected with the 6th three-way valve, the cold fluid inlet of heat exchanger is connected with the second water delivery side of pump, the entrance of the second water pump is connected with hot well, the cold fluid outlet of heat exchanger is connected with the water heater entrance of exhaust heat boiler, the entrance of booster fan is connected with the outlet of exhaust heat boiler, 6th three-way valve is connected with the waste gas outlet of desulfurizing tower, the exhaust heat boiler feedwater of extracting out from hot well through the first water pump extract out from hot well with the second water pump after exhaust heat boiler after heat exchanger preheating feed water conflux after control to enter the water heater of exhaust heat boiler through the 3rd three-way valve, drum is flowed into after exhaust heat boiler feedwater after confluxing is heated into steam water interface in water heater, gas-liquid separation in drum, liquid after gas-liquid separation flows into drum after the effect next part of recycle pump enters vaporizer heating, and remaining part flows into the process after drum after repeating steam water interface after entering water heater heating, the isolated saturated vapour of drum is divided into two-part, and a part of saturated vapour flows into boats and ships gas utilization unit, flows into hot well afterwards, the saturated vapour inflow superheater of remainder is heated to form high temperature super heated steam and does work through the second three-way valve control inputs steam turbine, and drives electrical power generators, and the steam after acting flows into hot well after condenser condenses.
The present invention can also comprise:
1, described heat exchanger adopts resistant material ND steel and 09CrCuSb steel as heating surface tubing, and at its surface coating corrosion resistant coating.
Advantage of the present invention is:
(1) energy-conservation.In the energy-saving emission-reducing apparatus realized utilizing the present invention, diesel exhaust is successively by exhaust heat boiler and corrosion-resistant plate fin heat exchanger, fully reclaim the energy in diesel exhaust waste heat, exhaust gas temperature is reduced to the value meeting wet desulfurizing process requirement, avoid the gas energy waste that flue gas spraying cooling process causes, improve capacity usage ratio; Meanwhile, greatly reduce the water yield that sweetening process is the spray equipment consumption reducing exhaust gas temperature and arrange in desulfurizing tower ingress, save a large amount of water resourcess.
(2) environmental protection.By this waste heat recovering device, desulfurizing tower waste air temperature at inlet is reduced to 60 ~ 75 DEG C, improves the desulphurization efficiency of desulfurizing tower, reduce the pollution to ocean environment.In addition, whole waste gas afterheat recovery system can reduce the consumption of the energy, also namely decreases the discharge of CO2, SO2, NOX, produces huge environmental benefit.
(3) Economy and good reliability.The present invention arranges corrosion-resistant plate fin heat exchanger after exhaust heat boiler, heat boiler outlet place exhaust gas temperature can be controlled more than acid dew point on the one hand while fully reclaiming boat diesel engine waste gas residual heat, effectively improve the cold end corrosion situation of exhaust heat boiler back-end surfaces, extend the working life of exhaust heat boiler; On the other hand, corrosion-resistant plate fin heat exchanger adopts resistant material ND steel (i.e. 09CrCuSb steel) as heating surface tubing, and at its surface coating corrosion resistant coating effectively to delay the cold end corrosion of heat exchanger fume side heating surface.Which thereby enhance the Economy of whole residual neat recovering system, ensure that the safety and reliability of residual neat recovering system running simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
In composition graphs 1, figure, diesel exhaust waste heat is successively used through exhaust heat boiler 3 and corrosion-resistant plate fin heat exchanger 13.
In figure, the outlet of booster fan 12 is connected with three-way valve 2-4, three-way valve 2-4 is connected with the hot fluid import of plate-fin heat exchanger 13, the hot fluid outlet ports of plate-fin heat exchanger 13 is connected with three-way valve 2-5, three-way valve 2-5 is connected with the exhaust gas inlet of desulfurizing tower 14, three-way valve 2-4 is connected with three-way valve 2-6, three-way valve 2-5 is connected with three-way valve 2-6, the cold fluid inlet of plate-fin heat exchanger 13 is connected with the outlet of water pump 10-2, the entrance of water pump 10-2 is connected with hot well 11, the cold fluid outlet of plate-fin heat exchanger 13 is connected with the water heater entrance of exhaust heat boiler 3, the entrance of booster fan 12 is connected with the outlet of exhaust heat boiler, three-way valve 2-6 is connected with the waste gas outlet of desulfurizing tower 14.
In figure, boat diesel engine 1 waste gas controls to pass into exhaust heat boiler 3 through three-way valve 2-1 and heats exhaust heat boiler feedwater, after booster fan 12 pressurizes, control through three-way valve 2-4 the feedwater passing into corrosion-resistant plate fin heat exchanger 13 preheating exhaust heat boiler 3 again, after controlling to pass into desulfurizing tower 14 washing desulphurization finally by three-way valve 2-5, enter air.
In figure, after the exhaust heat boiler feedwater of extracting out from hot well 11 through water pump 10-1 and the exhaust heat boiler after water pump 10-2 extracts out from hot well 11 after corrosion-resistant plate fin heat exchanger 13 preheating feed water and conflux, control to enter the water heater of exhaust heat boiler 3 through three-way valve 2-3; Drum 4 is flowed into after exhaust heat boiler feedwater is heated into steam water interface in water heater, gas-liquid separation in drum 4, liquid after gas-liquid separation flows into drum 4 after the effect lower part of recycle pump 5 enters vaporizer heating, the process before remaining part repeats after entering water heater heating; The isolated high temperature saturated vapour of drum 4 is divided into two-part, and a part flows into boats and ships gas utilization unit 9, for the daily heating of boats and ships, flow into hot well 11 afterwards; Remaining high temperature saturated vapour inflow superheater is heated to form high temperature super heated steam and does work through three-way valve 2-2 control inputs steam turbine 6, and drives generator 7 to generate electricity, and the steam after acting flows into hot well 11 after condenser 8 condensation.
Corrosion-resistant plate fin heat exchanger adopts resistant material ND steel (i.e. 09CrCuSb steel) as heating surface tubing, and at its surface coating corrosion resistant coating to delay the cold end corrosion of heat exchanger fume side heating surface.
Controlled the trend of heat boiler outlet waste gas by operation three-way valve 2-4,2-5,2-6, corrosion-resistant plate fin heat exchanger 13 and desulfurizing tower 14 are being broken down and between turn(a)round, residual neat recovering system can normally continuously work.
The boat diesel engine waste gas afterheat recovery unit of a kind of effective minimizing cold end corrosion of the present invention, primarily of equipment compositions such as boat diesel engine, exhaust heat boiler, turbine LP rotors, condenser, corrosion-resistant plate fin heat exchanger and desulfurizing towers.The mean temperature of marine low speed diesel smoke, at about 260 DEG C, has very high value, and the heat that the present invention make use of boat diesel engine high-temperature flue gas well produces high-temperature steam supply gas utilization unit and generates electricity; For avoiding the cold end corrosion of exhaust heat boiler back-end surfaces, heat boiler outlet exhaust gas temperature being controlled more than acid dew point, after exhaust heat boiler, arranging that corrosion-resistant plate fin heat exchanger is with the heat in recovery waste heat boiler export waste gas effectively simultaneously.
Between exhaust heat boiler and desulfurizing tower, arrange corrosion-resistant plate fin heat exchanger, and arrange booster fan between heat boiler outlet and three-way valve 2-4.The thermal source working medium of corrosion-resistant plate fin heat exchanger is heat boiler outlet high-temp waste gas, and low-temperature receiver working medium is recirculated cooling water after treatment.Cooling water is evacuated to from hot well the low-temperature receiver working medium ingress of heat exchanger through water pump, after the heating of corrosion-resistant plate fin heat exchanger, exports the heater inlet of exhaust heat boiler from low-temperature receiver sender property outlet to.
Corrosion-resistant plate fin heat exchanger using resistant material ND steel (i.e. 09CrCuSb steel) as heating surface tubing, and carries out anti-corrosion treatment to delay the cold end corrosion of heat exchanger fume side heating surface at its surface coating corrosion resistant coating.
Arrange bypass flue I to draw through three-way valve 2-6 to desulfurizing tower outlet port from three-way valve 2-4; By-pass line II to be drawn through three-way valve 2-6 to desulfurizing tower outlet port from three-way valve 2-5, and corrosion-resistant plate fin heat exchanger and desulfurizing tower are being broken down and between turn(a)round, residual neat recovering system can normally continuously work.
Corrosion-resistant plate fin heat exchanger is arranged between exhaust heat boiler and desulfurizing tower, and arranges booster fan between exhaust heat boiler waste gas outlet and three-way valve 2-4.
The thermal source working medium of corrosion-resistant plate fin heat exchanger is heat boiler outlet high-temp waste gas, and low-temperature receiver working medium is recirculated cooling water after treatment.Cooling water is evacuated to from hot well the low-temperature receiver working medium ingress of heat exchanger through water pump, after the heating of corrosion-resistant plate fin heat exchanger, exports the heater inlet of exhaust heat boiler from low-temperature receiver sender property outlet to.
Arrange bypass flue I to draw through three-way valve 2-6 to desulfurizing tower outlet port from three-way valve 2-4; By-pass line II is drawn through three-way valve 2-6 to desulfurizing tower outlet port from three-way valve 2-5.

Claims (2)

1. a boat diesel engine waste gas afterheat recovery unit, it is characterized in that: comprise desulfurizing tower, heat exchanger, booster fan, exhaust heat boiler, drum, hot well, the first-six three-way valve, the first-the second water pump, boat diesel engine waste gas passes into the lower end of exhaust heat boiler through the first three-way valve, discharge from the upper end of exhaust heat boiler again, after booster fan pressurization, pass into heat exchanger through the 4th three-way valve, after the 5th three-way valve passes into desulfurizing tower washing desulphurization, enter air, the outlet of booster fan is connected with the 4th three-way valve, 4th three-way valve is connected with the hot fluid import of heat exchanger, the hot fluid outlet ports of heat exchanger is connected with the 5th three-way valve, 5th three-way valve is connected with the exhaust gas inlet of desulfurizing tower, 4th three-way valve is connected with the 6th three-way valve, 5th three-way valve is connected with the 6th three-way valve, the cold fluid inlet of heat exchanger is connected with the second water delivery side of pump, the entrance of the second water pump is connected with hot well, the cold fluid outlet of heat exchanger is connected with the water heater entrance of exhaust heat boiler, the entrance of booster fan is connected with the outlet of exhaust heat boiler, 6th three-way valve is connected with the waste gas outlet of desulfurizing tower, the exhaust heat boiler feedwater of extracting out from hot well through the first water pump extract out from hot well with the second water pump after exhaust heat boiler after heat exchanger preheating feed water conflux after control to enter the water heater of exhaust heat boiler through the 3rd three-way valve, drum is flowed into after exhaust heat boiler feedwater after confluxing is heated into steam water interface in water heater, gas-liquid separation in drum, liquid after gas-liquid separation flows into drum after the effect next part of recycle pump enters vaporizer heating, and remaining part flows into the process after drum after repeating steam water interface after entering water heater heating, the isolated saturated vapour of drum is divided into two-part, and a part of saturated vapour flows into boats and ships gas utilization unit, flows into hot well afterwards, the saturated vapour inflow superheater of remainder is heated to form high temperature super heated steam and does work through the second three-way valve control inputs steam turbine, and drives electrical power generators, and the steam after acting flows into hot well after condenser condenses.
2. a kind of boat diesel engine waste gas afterheat recovery unit according to claim 1, is characterized in that: described heat exchanger adopts resistant material ND steel and 09CrCuSb steel as heating surface tubing, and at its surface coating corrosion resistant coating.
CN201410158184.4A 2014-04-18 2014-04-18 A kind of boat diesel engine waste gas afterheat recovery unit Active CN103925025B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410158184.4A CN103925025B (en) 2014-04-18 2014-04-18 A kind of boat diesel engine waste gas afterheat recovery unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410158184.4A CN103925025B (en) 2014-04-18 2014-04-18 A kind of boat diesel engine waste gas afterheat recovery unit

Publications (2)

Publication Number Publication Date
CN103925025A CN103925025A (en) 2014-07-16
CN103925025B true CN103925025B (en) 2015-12-09

Family

ID=51143387

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410158184.4A Active CN103925025B (en) 2014-04-18 2014-04-18 A kind of boat diesel engine waste gas afterheat recovery unit

Country Status (1)

Country Link
CN (1) CN103925025B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265427A (en) * 2014-08-07 2015-01-07 哈尔滨工程大学 Medium speed diesel engine waste gas desulfurization and waste heat recovery combined cycle system for ship
CN104353357A (en) * 2014-10-22 2015-02-18 哈尔滨工程大学 Integrated exhaust gas scrubbing desulfuration equipment for ship power device and control method
CN104390200A (en) * 2014-11-21 2015-03-04 张家港格林沙洲锅炉有限公司 Marine exhaust gas waste heat boiler
CN104612769A (en) * 2014-12-22 2015-05-13 哈尔滨工程大学 Method for designing waste heat generating system of marine main engine
JP6670123B2 (en) 2016-02-19 2020-03-18 株式会社神戸製鋼所 Exhaust heat recovery device and binary power generation device
CN105928050B (en) * 2016-04-07 2020-10-23 中国舰船研究设计中心 Ship waste heat heating system and method based on heat pipe waste heat economizer
JP6513602B2 (en) * 2016-06-10 2019-05-15 三菱重工業株式会社 Exhaust heat recovery system, ship equipped with the same, and exhaust heat recovery method
CN106492608B (en) * 2016-10-17 2019-03-19 大连海事大学 A kind of ship multichannel flue heat exchange low-resistance is connected to EGCs devices and methods therefor
CN110975568A (en) * 2019-11-27 2020-04-10 惠生(南通)重工有限公司 Utilize boats and ships exhaust-gas treatment system of PCHE vaporizer cooling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7814742B2 (en) * 2006-12-13 2010-10-19 Mitsubishi Heavy Industries, Ltd. Integrated coal gasification combined cycle plant
CN102444900A (en) * 2011-11-30 2012-05-09 辽宁赛沃斯节能技术有限公司 Coal power plant controllable type heat pipe flue gas waste heat recovery system and method
CN102454980A (en) * 2010-10-19 2012-05-16 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
CN103109047A (en) * 2010-09-06 2013-05-15 三菱重工业株式会社 Power plant facility, ship provided with same, and method for operating power plant facility

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1030407A (en) * 1996-07-18 1998-02-03 Toshiba Corp Combined cycle power generation plant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7814742B2 (en) * 2006-12-13 2010-10-19 Mitsubishi Heavy Industries, Ltd. Integrated coal gasification combined cycle plant
CN103109047A (en) * 2010-09-06 2013-05-15 三菱重工业株式会社 Power plant facility, ship provided with same, and method for operating power plant facility
CN102454980A (en) * 2010-10-19 2012-05-16 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
CN102444900A (en) * 2011-11-30 2012-05-09 辽宁赛沃斯节能技术有限公司 Coal power plant controllable type heat pipe flue gas waste heat recovery system and method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
从柴油机余热中获取电能;无;《武汉造船》;19810630(第3期);第97-98页 *
超大型船舶废气利用的途径和措施;马捷等;《华北电力大学学报》;20100130;第37卷(第1期);第14-19页 *

Also Published As

Publication number Publication date
CN103925025A (en) 2014-07-16

Similar Documents

Publication Publication Date Title
CN103925025B (en) A kind of boat diesel engine waste gas afterheat recovery unit
CN103967648B (en) A kind of marine low speed diesel residual heat comprehensive recovery system
CN103062754B (en) Power station machine furnace integrated cold end comprehensive optimization system
CN204923035U (en) Processing system is synthesized to coal fired boiler's flue gas
CN203501144U (en) Waste heat recovery system for gas-fired boiler
CN103438427A (en) Gas-fired boiler afterheat recovering system and recovering method
CN202973061U (en) Power station engine and boiler integrated cold end comprehensive optimization system
CN104826475A (en) Ship exhaust gas mixed type desulfurization device and working method thereof
CN204593353U (en) A kind of integrated system of deep exploitation residual heat from boiler fume
CN103398385B (en) The residual neat recovering system of a kind of boats and ships incinerator and power set and recovery method
CN104712382A (en) Combined cycle system achieving ultralow emissions and waste heat recovery of low-speed diesel engine of ship
CN106052405A (en) Heating furnace waste heat comprehensive utilization system and method
CN207621985U (en) A kind of boiler smoke heat reclaiming system
CN107128993B (en) Power plant flue gas waste heat direct evaporation type desalination system with flue gas reheating function
CN205642070U (en) Steam power plant's high temperature tail gas remains utilization of heat device
CN107270383A (en) A kind of thermoelectricity peak load regulation heating system
CN205299567U (en) Energy -conserving low dust discharges coal -fired thermal power system
CN204042853U (en) Steam boiler waste heat reclaims and system for deoxidizing by heat power
CN101038137A (en) Automatic control system for wall temperature of boiler discharged smoke heat recovery heat exchanger
CN201827875U (en) Low-temperature flue gas waste heat recovery device
CN208419646U (en) Sintering flue gas white cigarette governing system
CN102506413B (en) Desalted water high-pressure oxygen removing method capable of utilizing low-temperature heat of catalytic cracking device
CN104896492A (en) Energy-saving and low-dust emission coal-fired power generation system
CN205638587U (en) Tail gas afterheat recycling device of thermal power factory
CN206257687U (en) A kind of combined steam flue gas MGGH systems

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant