CN103398385B - The residual neat recovering system of a kind of boats and ships incinerator and power set and recovery method - Google Patents
The residual neat recovering system of a kind of boats and ships incinerator and power set and recovery method Download PDFInfo
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- CN103398385B CN103398385B CN201310325318.2A CN201310325318A CN103398385B CN 103398385 B CN103398385 B CN 103398385B CN 201310325318 A CN201310325318 A CN 201310325318A CN 103398385 B CN103398385 B CN 103398385B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
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Abstract
The invention discloses residual neat recovering system and the recovery method of a kind of boats and ships incinerator and power set, belong to waste heat recovery field; What solve is the problem how making the heat energy of shipborne equipment better recycle; Its technical essential is, hot well connects boiler feed pump successively, a secondary preheating device, drum first entrance, drum first export, water circulating pump, economizer, evaporimeter, drum second entrance, drum second export, system is divided into two-way in drum second exit, one tunnel connects superheater, steam turbine generator, condenser, condensate pump successively, finally return hot well and form loop, another road also returns hot well after steam-heating apparatus; Ship garbage incinerator and diesel powerplant exhaust is passed in waste heat boiler; Waste heat boiler exhaust is passed in air preheater.Main application reclaims the exhaust heat of incinerator and power set, saving fuel oil cost, improves marine power plant economy and environment friendly.
Description
Technical field
The present invention relates to waste heat comprehensive utilization system peculiar to vessel, particularly relate to residual neat recovering system and the recovery method of a kind of boats and ships incinerator and power set.
Background technology
For the boats and ships using diesel engine Main propulsion power plant, the exhaust of main diesel engine and the jacket-cooling water of cooling major-minor machine, all contain the heat that can utilize further, and these heats are important component parts for Ship Waste Heat.At present, to the UTILIZATION OF VESIDUAL HEAT IN aspect of the more mainly diesel powerplant of Ship Waste Heat research on utilization.The waste heat purposes aboard ship of diesel powerplant roughly has two kinds: one is for heating, as occupant lives required hot water, ocean-going vessel by sea water by distillation with the steam needed for the heating and thermal insulation etc. manufacturing fresh water, the heating of the cabin of cold season and oils and hot water etc.; Another kind is for generation of power, normally produces the generating of steam drive steam turbine generator by waste heat boiler and saves diesel oil, needing for the various electricity consumption of full ship.
In, on low power boats and ships, marine main engine exhaust heat energy is little, and recoverable power is limited, so all adopt the mode of the simplest waste heat energy for heating.Some very low power ship even only fills vent water heater with hot water on supply vessel.In large ship, oil burning donkey boiler is replaced to provide life to use mixedly except utilizing main frame waste gas residual heat boiler and except the steam such as oils heating, in order to make full use of the waste heat that Ship Power Equipment produces further, steam turbine generator is also used to make this part waste heat produce electric energy and part marine vapor.And on the powerful medium speed diesel power plants boats and ships of equipment, its available exhaust heat energy equivalence is large, fully effectively utilizing this part energy, is the important channel realizing ship energy saving reduction of discharging.At boats and ships towards the today of maximizing, high speed develops, the rated power of diesel engine constantly increases, in order to reduce oil consumption, the outlet temperature of diesel coolant also brings up to present 80 DEG C ~ 85 DEG C from 60 DEG C of the sixties in 20th century ~ 65 DEG C, and some high speed machine is even up to more than 90 DEG C.The increase of cooling water outlet temperature makes the quality of cooled water heat energy be greatly improved, also for the utilization of cooling water heat creates better condition.
Meanwhile, day by day perfect along with environmental regulation, ship garbage treatment system will be further developed.Incineration treatment of garbage technology is used widely on deep-sea vessels as a kind of processing mode of comparative maturity, makes the application of ship garbage incinerator on large ship more and more extensive, and is aboard ship burnt by most of rubbish.But because the garbage treatment quantity of the ship garbage incinerator of practical application is little, and it is more ship to configure the energy, so the high-temperature flue gas that ship garbage incinerator produces all is not used.This part is vented because temperature is high, and its available potential is huge, considers, should take measures to be recycled from environmental protection and economic angle.
Summary of the invention
The object of the invention is to the shortcoming and defect overcoming above-mentioned prior art, there is provided residual neat recovering system and the recovery method of a kind of boats and ships incinerator and power set, in order to solve the recycling problem of the exhaust heat of ship garbage incinerator and diesel powerplant.
The present invention is achieved through the following technical solutions:
A residual neat recovering system for boats and ships incinerator and power set, comprises waste heat boiler; Economizer, evaporimeter, superheater, exhaust turbine supercharger, total heating flue, ship garbage incinerator, diesel powerplant, steam-heating apparatus, steam turbine generator, condenser, condensate pump, hot well, boiler feed pump, preheater, secondary preheating device, water circulating pump, drum, an air preheater;
Described economizer, evaporimeter and superheater are arranged in waste heat boiler; Hot well connects boiler feed pump successively, preheater, secondary preheating device, the first entrance of drum, the first outlet of drum, water circulating pump, economizer, evaporimeter, the second entrance of drum, second of drum export;
Second exit of drum is divided into two-way: wherein a road connects superheater, steam turbine generator, condenser, condensate pump successively, finally returns hot well and forms loop; An other road also returns hot well after steam-heating apparatus;
Passed into the exhaust of ship garbage incinerator and diesel powerplant by exhaust turbine supercharger and total heating flue in waste heat boiler;
Waste heat boiler exhaust is passed in air preheater;
Diesel powerplant also connects a preheater.
Auxiliary boiler is also had additional between steam turbine generator and steam-heating apparatus.
Described economizer, evaporimeter and superheater are finned boiler steel.
Described water circulating pump adopts centrifugal heat-exchanger pump.
Described waste heat boiler is water-tube boiler; Described hot well is also communicated with air.
The exhaust heat recovering method of the residual neat recovering system of above-mentioned boats and ships incinerator and power set, is following steps:
First the exhaust of ship garbage incinerator and diesel powerplant 8 enters total heating flue, then the exhaust driven gas turbine entered by total heating flue in exhaust turbine supercharger is vented, exhaust enters waste heat boiler after expansion work in exhaust driven gas turbine, and the temperature be now vented is 300 DEG C;
Water in boiler feed pump pressurization hot well, is delivered to the water in hot well after once heating in a preheater and enters secondary preheating device, carry out entering drum after post bake through secondary preheating device; The water now flowing out drum is 175 DEG C of saturation waters, by entering secondary preheating device after water circulating pump, heats the boiler feedwater to 75 DEG C from a preheater, then successively by returning drum after economizer and evaporimeter; Drum is separated steam water interface wherein, the saturated vapor produced is divided into two-way, one road saturated vapor passes into and to enter steam turbine generator acting after superheater becomes superheated steam, finishes the exhaust steam after merit and enters condenser and be condensed into liquid state, after condensate pump, return hot well; Another road saturated vapor directly leads to each steam-heating apparatus on ship, and the some vapor after having utilized or steam water interface return hot well.
The present invention, relative to prior art, has following advantage and effect:
1), after native system being installed for new shipbuilding oceangoing ship or transformation boats and ships, significantly can reduce the fuel consume of vessel motion or lay day oil burning donkey boiler, can fuel cost be saved.
2) native system not only takes full advantage of exhaust heat and the cooling water heat of marine diesel power set, also reasonably make use of ship garbage incinerator exhaust heat, except boiler feed pump, water circulating pump, a small amount of electric energy of condensate pump consumption, the saturated vapor of generation does not need any cost.
3) because the high-temperature flue gas after waste incineration can directly be utilized by said system, ship garbage incinerator no longer arranges air blast with coolant exhaust, has both simplified waste incineration furnace apparatus, can reach energy-conservation effect again.
4) native system is provided with total heating flue, for concentrating from multiple hot equipment recovery waste heat.Simultaneously, because the exhaust of ship garbage incinerator and diesel powerplant all utilizes through total heating flue centralized recovery, the exhaust of these two equipment can unify to be discharged into air again after process reaches discharge standard, thus simplifies environmental protection equipment device, reduction cost of investment, raising operational management efficiency.
5), after installing native system, the delivery temperature of ship garbage incinerator and diesel powerplant obviously reduces.When not installing this system, the delivery temperature of ship garbage incinerator is about 1100 DEG C, and the delivery temperature of diesel powerplant is about 300 DEG C; After installing this system, the delivery temperature of these two equipment can be reduced to about 170 DEG C.During vessel berth, reduce delivery temperature and just mean and can reduce the thermal pollution of boats and ships to harbour and surrounding area, reduce " tropical island effect " in city.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figure 1, the residual neat recovering system of boats and ships incinerator of the present invention and power set, comprises waste heat boiler 1, economizer 2, evaporimeter 3, superheater 4, exhaust turbine supercharger 5, total heating flue 6, ship garbage incinerator 7, diesel powerplant 8, steam-heating apparatus 9, steam turbine generator 10, condenser 11, condensate pump 12, hot well 13, boiler feed pump 14, preheater 15, secondary preheating device 16, water circulating pump 17, drum 18, an air preheater 19;
Described economizer 2, evaporimeter 3 and superheater 4 are arranged in waste heat boiler 1; Hot well 13 connects boiler feed pump 14, preheater 15, secondary preheating device 16, the first entrance of drum 18, the first outlet of drum 18, the second entrance of water circulating pump 17, economizer 2, evaporimeter 3, drum 18, the second outlet of drum 18 successively;
Second exit of drum 18 is divided into two-way; Wherein a road connects superheater 4, steam turbine generator 10, condenser 11, condensate pump 12 successively, finally returns hot well 13 and forms loop; An other road also returns hot well 13 after steam-heating apparatus 9;
Passed into the exhaust of ship garbage incinerator 7 and diesel powerplant 8 by exhaust turbine supercharger 5 and total heating flue 6 in waste heat boiler 1;
Pass into waste heat boiler 1 in air preheater 19 to be vented; Diesel powerplant 8 also connects a preheater 15.
Auxiliary boiler 20 is also had additional between steam turbine generator 10 and steam-heating apparatus 9.Described auxiliary boiler 20 is oil burning boiler.Its effect starts auxiliary boiler 20, and auxiliary boiler 20 produces steam and supplements quantity of steam needed for each steam-heating apparatus 9 on steam turbine generator 10 and ship.Auxiliary boiler 20 can use Valve controlling with the junction of steam turbine generator 10 and steam-heating apparatus 9 pipeline.
Described economizer 2, evaporimeter 3 and superheater 4 are finned boiler steel.
Described water circulating pump 17 adopts centrifugal heat-exchanger pump; Described waste heat boiler 1 is water-tube boiler; Described hot well 13 is also communicated with air.
The exhaust heat recovering method of the residual neat recovering system of above-mentioned boats and ships incinerator and power set, is following steps:
First the exhaust of ship garbage incinerator 7 and diesel powerplant 8 enters total heating flue 6, then the exhaust driven gas turbine entered by total heating flue 6 in exhaust turbine supercharger 5 is vented, exhaust enters waste heat boiler 1 in exhaust driven gas turbine after expansion work, the temperature be now vented is 300 DEG C;
Boiler feed pump 14 pressurizes the water in hot well 13, is delivered to by the water in hot well 13 after once heating in a preheater 15 and enters secondary preheating device 16, after secondary preheating device 16 carries out post bake, enter drum 18; The water now flowing out drum 18 is the saturation water of 175 DEG C to about 180 DEG C, by entering secondary preheating device 16 after water circulating pump 17, heat boiler feedwater to 75 from a preheater DEG C to about 80 DEG C, then successively by returning drum 18 after economizer 2 and evaporimeter 3; Drum 18 is separated steam water interface wherein, the saturated vapor produced is divided into two-way, one road saturated vapor passes into and enters steam turbine generator 10 after superheater 4 becomes superheated steam and do work, and finishes the exhaust steam after merit and enters condenser 11 and be condensed into liquid state, return hot well 13 after condensate pump 12; Another road saturated vapor directly leads to each steam-heating apparatus 9 on ship, and the some vapor after having utilized or steam water interface return hot well 13.
The pressure that boiler feed pump 14 exports is the operating pressure of waste heat boiler 1 correspondence.
No. one time preheater 15 exports the temperature of unsaturated water between 70 DEG C and 75 DEG C.The temperature that secondary preheating device 16 exports unsaturated water is generally low than the saturation water temperature in drum 18 about 10 DEG C, is about 165 DEG C in the present embodiment.
The temperature of the unsaturated water of economizer 2 import between 125 DEG C and 130 DEG C, economizer 2 export water temperature due to run on reason get lower than saturated water temperature 12 DEG C, be about 163 DEG C in the present embodiment.
Hot well 13 communicates with air, and in hot well 13, heat hydraulic pressure is 0.1MPa, and water temperature is usually between 50 DEG C and 55 DEG C.
Saturated vapor and saturation water refer to that aqueous water and water vapour are in the state of dynamic equilibrium, and the water vapour being in saturation state is called saturated vapor, and the aqueous water being in saturation state is called saturation water.Now, saturated vapor is identical with the temperature of saturation water, is called saturation temperature; Saturated vapor is identical with the pressure of saturation water, is called saturation pressure.Water lower than saturation temperature is called unsaturated water.
Described total heating flue 6 can be equipped with valve, for controlling flue gas flow, prevents flue gas from revealing simultaneously.
The pressure that described boiler feed pump 14 exports boiler feedwater is the operating pressure of waste heat boiler 1 correspondence.
In described drum 18, the pressure of saturation water, saturated vapor is the operating pressure of waste heat boiler 1 correspondence, and the temperature of saturation water, saturated vapor is the saturation temperature under the corresponding operating pressure of waste heat boiler 1.
The saturated vapor some that described drum 18 produces enters each steam-heating apparatus for heating, and another part enters superheater 4 and produces superheated steam for generating.
The pressure of the unsaturated water of entrance of a described preheater 15, secondary preheating device 16 and the pressure going out saliva are the operating pressure of waste heat boiler 1 correspondence.
A described preheater 15, secondary preheating device 16 are generally designed to boiler feedwater and are in unsaturation under evaporating pressure or saturated liquid state after warming.
A described preheater 15 utilizes diesel powerplant cooling water to heat the boiler feedwater from hot well 13.
Described secondary preheating device 16 utilizes the saturation water of drum to carry out post bake to boiler feedwater.
Described air preheater 19 is the air preheater of ship garbage incinerator, and waste heat boiler 1 exhaust enters air preheater 19 preheating and passes into air in ship garbage incinerator, utilizes exhaust heat more fully, and exhaust is finally discharged into air.
As mentioned above, just the present invention can be realized preferably.
Embodiments of the present invention are not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1. a residual neat recovering system for boats and ships incinerator and power set, is characterized in that: comprise waste heat boiler, economizer, evaporimeter, superheater, exhaust turbine supercharger, total heating flue, ship garbage incinerator, diesel powerplant, steam-heating apparatus, steam turbine generator, condenser, condensate pump, hot well, boiler feed pump, preheater, secondary preheating device, water circulating pump, drum, an air preheater;
Described economizer, evaporimeter and superheater are arranged in waste heat boiler; Hot well connects boiler feed pump successively, preheater, secondary preheating device, the first entrance of drum, the first outlet of drum, water circulating pump, economizer, evaporimeter, the second entrance of drum, second of drum export;
Second exit of drum is divided into two-way: wherein a road connects superheater, steam turbine generator, condenser, condensate pump successively, finally returns hot well and forms loop; An other road also returns hot well after steam-heating apparatus;
Passed into the exhaust of ship garbage incinerator and diesel powerplant by exhaust turbine supercharger and total heating flue in waste heat boiler;
Waste heat boiler exhaust is passed in air preheater;
Diesel powerplant also connects a preheater.
2. the residual neat recovering system of boats and ships incinerator according to claim 1 and power set, is characterized in that: also have additional auxiliary boiler between steam turbine generator and steam-heating apparatus.
3. the residual neat recovering system of boats and ships incinerator according to claim 1 and power set, is characterized in that: described economizer, evaporimeter and superheater are finned boiler steel.
4. the residual neat recovering system of boats and ships incinerator according to claim 1 and power set, is characterized in that: described water circulating pump adopts centrifugal heat-exchanger pump.
5. the residual neat recovering system of boats and ships incinerator according to claim 1 and power set, is characterized in that: described waste heat boiler is water-tube boiler; Described hot well is also communicated with air.
6. the exhaust heat recovering method of the residual neat recovering system of boats and ships incinerator and power set according to any one of Claims 1 to 5, is characterized in that following steps:
The exhaust of ship garbage incinerator and diesel powerplant (8) first enters total heating flue, then the exhaust driven gas turbine entered by total heating flue in exhaust turbine supercharger is vented, exhaust enters waste heat boiler after expansion work in exhaust driven gas turbine, and the temperature be now vented is 300 DEG C;
Water in boiler feed pump pressurization hot well, is delivered to the water in hot well after once heating in a preheater and enters secondary preheating device, carry out entering drum after post bake through secondary preheating device; The water now flowing out drum is 175 DEG C of saturation waters, by entering secondary preheating device after water circulating pump, heats the boiler feedwater to 75 DEG C from a preheater, then successively by returning drum after economizer and evaporimeter; Drum is separated steam water interface wherein, the saturated vapor produced is divided into two-way, one road saturated vapor passes into and to enter steam turbine generator acting after superheater becomes superheated steam, finishes the exhaust steam after merit and enters condenser and be condensed into liquid state, after condensate pump, return hot well; Another road saturated vapor directly leads to each steam-heating apparatus on ship, and the some vapor after having utilized or steam water interface return hot well.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105927991A (en) * | 2016-05-03 | 2016-09-07 | 广西欧讯科技服务有限责任公司 | Marine incinerator dirty oil tank |
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| CN104033873A (en) * | 2014-07-01 | 2014-09-10 | 北京时代科锐新能源科技有限公司 | Heating device and method based on well drilling diesel engine waste heat recycling |
| CN105927990A (en) * | 2016-05-03 | 2016-09-07 | 广西欧讯科技服务有限责任公司 | Marine incinerator dirty oil cabinet with warning function |
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| CN112814806B (en) * | 2020-12-28 | 2022-11-11 | 航天推进技术研究院 | Control method of waste heat combined power generation system of main diesel engine of ship |
| CN114109544A (en) * | 2021-11-22 | 2022-03-01 | 沪东中华造船(集团)有限公司 | LNG ship redundant volatile gas combustion power generation device and combustion power generation method |
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