CN104832230B - A kind of liquid organic-fuel Multi-purpose energy-saving combustion system and method - Google Patents
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system and method Download PDFInfo
- Publication number
- CN104832230B CN104832230B CN201510225519.4A CN201510225519A CN104832230B CN 104832230 B CN104832230 B CN 104832230B CN 201510225519 A CN201510225519 A CN 201510225519A CN 104832230 B CN104832230 B CN 104832230B
- Authority
- CN
- China
- Prior art keywords
- flue gas
- fuel
- organic
- liquid organic
- vaporising device
- 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
Links
Abstract
The present invention relates to a kind of liquid organic-fuel Multi-purpose energy-saving combustion system and method, this system includes combustion apparatus, vaporising device and flue gas condenser, organic-fuel after vaporization is burnt by combustion apparatus, and the flue gas making organic-fuel burning produce returns vaporising device and carries out waste heat recovery；Vaporising device accepts the flue gas that organic-fuel burning produces, and makes liquid organic-fuel vaporize, and the flue gas after heat exchange enters flue gas condenser and carries out the degree of depth recovery of fume afterheat；Flue gas condenser utilizes the waste heat of the flue gas that vaporising device flows out to heat relevant working medium, reduces flue-gas temperature further, it is achieved the cascade utilization of fume afterheat, and the relevant working medium after heating enters combustion apparatus simultaneously, improves efficiency of combustion.Compared with prior art, the present invention has carried out cascade utilization to fume afterheat, and the thermal efficiency of combustion apparatus is greatly improved, and while flue gas waste heat recovery, also eliminates part harmful substance contained in flue gas, reduces the discharge capacity of harmful substance.
Description
Technical field
The present invention relates to a kind of organic-fuel combustion system, especially relate to a kind of liquid organic-fuel multipurpose joint
Energy combustion system and method, belong to energy field of combustion technology.
Background technology
At present, natural gas is widely used in every field as clear energy sources.Use natural gas as the energy,
The consumption of coal and oil can be reduced, thus be substantially improved problem of environmental pollution；Natural gas as a kind of clean energy resource,
Sulfur dioxide and dust discharge amount nearly 100% can be reduced, reduce CO2 emissions 60% and oxynitride row
High-volume 50%, and contribute to reducing acid rain and formed, global greenhouse effect of releiving, fundamentally improves environmental quality.
But along with the rise of Gas Prices, use natural gas the most constantly to raise as the operating cost of the equipment of fuel；By
In China's natural gas reserves and product quantitative limitation, the natural gas external dependence degree of current China has reached 30%, it is contemplated that
To the year two thousand twenty, the natural gas external dependence degree of China will reach 50%；And along with various places coal changes the popularization of gas project,
The consumption of natural gas will be greatly increased.Country has started to that various places gas consumption has carried out planning and limits, and starts to open
Dynamic natural gas peak-shaving project.
China's methanol etc. can be far below production capacity, and dropping along with coal price as the Organic substance yield of organic-fuel,
Its production cost also continuous decrease；And along with the improvement of technology, oven gas produces the price of Related product the most therewith
Reduce.Therefore methanol etc. is used the most day by day can to raise as the cry of the Organic substance of the organic-fuel energy as an alternative.
Use at present the automobile of methanol gasoline and used methanol to carry out the burner being atomized, but due to its latent heat of vaporization relatively
, therefore easily there is low warm spot when burning, thus causes ignition temperature not high enough (1100 DEG C) in height, and burning
Unstable (flame-out phenomenon easily occurs), the most still cannot be carried out large-scale promotion.
Chinese patent CN 103196139A discloses a kind of smoke backflow vaporization alcohol-based fuel burner, including outside
Shell, the top of shell arranges fuel channel, arranges catalytic reaction body in the enclosure, is vertically arranged flue gas and returns in shell
Circulation road, smoke backflow passage passes catalytic reaction body, is provided above top cover, and bottom arranges bottom；Fuel exports
The outlet section of pipe is extending upwardly to the throat of shell by the lower vertical of shell, and the inwall of shell is provided with lighter.In combustion
Before material atomization, utilize the heat alcohol-based fuel that burner self produces so that the tension force of alcohol-based fuel reduces,
Atomizing effect is more preferably；Smoke backflow, to gas atomization Mixed Zone, is possible not only to preheated air, improves burner and combines
Close efficiency of utilization, and owing to the backflow of flue gas makes flame combustion district heat move to blending space so that fire
Flame combustion zone temperature reduces, and the temperature of whole burner more tends to uniform, reduces liquid fuel due to too high fire
Carbon distribution produced by flame temperature.In this patent, the waste heat for flue gas the most well processes, and causes more than flue gas
The waste of heat.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of organic combustion of liquid is provided
Material Multi-purpose energy-saving combustion system and method.The system and method for the present invention can improve organic-fuel ignition temperature,
And stablizing of burning can be realized, simultaneously by the waste heat recovery to flue gas, improve the thermal efficiency of equipment, it is achieved system
Energy-saving and emission-reduction.Overcome ignition temperature existing during the organic-fuels such as current methanol use not high enough
(1100 DEG C), and combustion instability (flame-out phenomenon easily occurs).Thus realize using organic-fuel to substitute natural gas
The purpose of the energy.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system, including:
Combustion apparatus: the organic-fuel after vaporization is burnt, and make the flue gas of organic-fuel burning generation return
Vaporising device carries out waste heat recovery；
Vaporising device: accept the flue gas that organic-fuel burning produces, flue gas and liquid organic-fuel carry out heat exchange, make
Liquid organic-fuel vaporizes, and the flue gas after heat exchange enters flue gas condenser and carries out the degree of depth recovery of fume afterheat；
Flue gas condenser: utilize the waste heat of the flue gas that vaporising device flows out that relevant working medium is heated, drop further
Low flue-gas temperature, it is achieved the cascade utilization of fume afterheat, the relevant working medium after heating enters combustion apparatus simultaneously, carries
High burning efficiency.
Described combustion apparatus includes boiler, air compressor machine or electromotor burner.
Described combustion apparatus i.e. can use organic-fuel gas as fuel, it is possible to use the fuel gas such as natural gas
As fuel.When native system is as the burning of the associated fuel gas such as natural gas, vaporising device can be set as burning
Standby economizer uses, thus realizes the multipurpose of system.
Described vaporising device is gas liquid exchanger.
In addition to carrying out heat exchange by flue gas and liquid organic based fuels, described vaporising device is self by hot water, steam
Or electrical heating carries out heat exchange to liquid organic based fuels so that it is vaporization.This system in start-up course owing to there is no flue gas,
Therefore can enter with liquid organic based fuels using the associated fuel gas such as natural gas first to carry out burning generation flue gas in advance
Row heat exchange so that it is gasify or by associated heat systems such as hot water, steam or electrical heating, liquid organic based fuels carried out
Heat exchange so that it is gasification, and combustion, after generating flue gas, then switches over it, thus realizes the startup of system.
Described flue gas condenser includes economizer or air preheater.
After described flue gas condenser is to flue gas heat exchange, flue-gas temperature is made to be less than its dew point temperature, water in recovered flue gas
The latent heat of steam, simultaneously during flue gas condensing generates condensed water, removes and includes carbide, nitride and sulfur
Compound is at interior harmful substance.
Described relevant working medium is the standby combustion air of the combustion heat or water.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion method, comprises the following steps:
Combustion step: burn the organic-fuel after vaporization, produces required energy, and organic-fuel burning produces
Flue gas return vaporising device carry out flue gas waste heat recovery；
Pervaporation step: liquid organic-fuel is vaporized process by vaporising device, the organic-fuel after vaporization supplies
Should give combustion apparatus, the flue gas that on the one hand vaporization institute calorific requirement produces for organic-fuel burning after vaporization, on the other hand
For hot water, steam or electrical heating that vaporising device is external, owing to flue gas is after vaporising device, temperature has necessarily
Decline, but still far above ambient temperature, accordingly, it would be desirable to the degree of depth that flue gas carries out waste heat reclaims.
The degree of depth of fume afterheat reclaims: flue gas condenser utilizes the waste heat of flue gas after vaporizing heat exchange to carry out relevant working medium
Heating, reduces flue-gas temperature, it is achieved the cascade utilization of fume afterheat further, and the degree of depth at fume afterheat reclaims step
In Zhou, after described flue gas condenser is to flue gas heat exchange, flue-gas temperature is made to be less than its dew point temperature, in recovered flue gas
The latent heat of water vapour, thus the heat of recovery is greatly improved；Relevant working medium after heating enters combustion apparatus simultaneously,
Owing to working medium is heated, temperature raises, thus improves the thermal efficiency of combustion apparatus, it is achieved energy-conservation purpose；With
Time generate during condensed water at flue gas condensing, remove including carbide, nitride and sulfide is harmful
Material, it is achieved thereby that the purpose reduced discharging.
Compared with prior art, the present invention has the following advantages and beneficial effect:
1, the multipurpose of system: the present invention is not only applicable to organic-fuel, is simultaneously applicable to the combustions such as natural gas
Material gas；
2, it is used for burning after being gasified by liquid organic based fuels, ignition temperature and combustion stability can be improved；
3, fume afterheat has been carried out cascade utilization, the thermal efficiency of combustion apparatus has been greatly improved, thus realizes
Energy-conservation purpose；
4, while to flue gas waste heat recovery, also eliminate part harmful substance contained in flue gas, reduced
The discharge capacity of pest matter, it is achieved thereby that the purpose reduced discharging.
Accompanying drawing explanation
Fig. 1 is the liquid organic-fuel Multi-purpose energy-saving combustion system structural representation of the present invention.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system, including combustion apparatus 1, vaporising device 2, flue gas
Condenser 3 and include the associated pipe of flue gas pipeline, air pipe line and supply channel etc..
Organic-fuel after vaporization is burnt by combustion apparatus 1, and the flue gas making organic-fuel burning produce returns
Vaporising device carries out waste heat recovery, and combustion apparatus includes boiler, air compressor machine or electromotor burner.Combustion apparatus is i.e.
Organic-fuel gas can be used as fuel, it is possible to use the fuel gas such as natural gas are as fuel.Make at native system
During for the burning of the associated fuel gas such as natural gas, vaporising device can be used as the economizer of combustion apparatus, thus
Realize the multipurpose of system.
Vaporising device 2 is gas liquid exchanger.The flue gas 6 that vaporising device is produced by organic fuel combustion, flue gas with
Liquid organic-fuel 4 carries out heat exchange, makes liquid organic-fuel 4 vaporize, and the flue gas 6 after heat exchange enters flue gas condensing
Device 3 carries out the degree of depth of fume afterheat and reclaims；In addition to carrying out heat exchange by flue gas and liquid organic based fuels, vaporising device
Self by hot water, steam or electrical heating, liquid organic based fuels is carried out heat exchange so that it is vaporization.
Flue gas condenser 3 includes economizer or air preheater.Flue gas condenser 3 utilizes vaporising device 2 to flow out
Relevant working medium 5 is heated by the waste heat of flue gas 6, reduces flue-gas temperature further, makes flue-gas temperature be less than its dew
Point temperature, the latent heat of water vapour in recovered flue gas, it is achieved the cascade utilization of fume afterheat, simultaneously being correlated with after heating
Working medium enters combustion apparatus 1, improves efficiency of combustion, simultaneously during flue gas condensing generates condensed water, removes
Harmful substance including carbide, nitride and sulfide.Relevant working medium be the standby combustion air of the combustion heat or
Water.
This system owing to not having flue gas, therefore can use the associated fuel gas such as natural gas in start-up course in advance
First carry out burning generation flue gas and carry out heat exchange with liquid organic based fuels so that it is gasify or added by hot water, steam or electricity
The associated heat systems such as heat carry out heat exchange to liquid organic based fuels so that it is gasification, and combustion, after generating flue gas more right
It switches over, thus realizes the startup of system.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion method, comprises the following steps:
Combustion step: burn the organic-fuel after vaporization, produces required energy, and organic-fuel burning produces
Flue gas return vaporising device carry out flue gas waste heat recovery；
Pervaporation step: liquid organic-fuel is vaporized process by vaporising device, the organic-fuel after vaporization supplies
Should give combustion apparatus, the flue gas that on the one hand vaporization institute calorific requirement produces for organic-fuel burning after vaporization, on the other hand
For hot water, steam or electrical heating that vaporising device is external, owing to flue gas is after vaporising device, temperature has necessarily
Decline, but still far above ambient temperature, accordingly, it would be desirable to the degree of depth that flue gas carries out waste heat reclaims.
The degree of depth of fume afterheat reclaims: flue gas condenser utilizes the waste heat of flue gas after vaporizing heat exchange to carry out relevant working medium
Heating, reduces flue-gas temperature, it is achieved the cascade utilization of fume afterheat further, and the degree of depth at fume afterheat reclaims step
In Zhou, after described flue gas condenser is to flue gas heat exchange, flue-gas temperature is made to be less than its dew point temperature, in recovered flue gas
The latent heat of water vapour, thus the heat of recovery is greatly improved；Relevant working medium after heating enters combustion apparatus simultaneously,
Owing to working medium is heated, temperature raises, thus improves the thermal efficiency of combustion apparatus, it is achieved energy-conservation purpose；With
Time generate during condensed water at flue gas condensing, remove including carbide, nitride and sulfide is harmful
Material, it is achieved thereby that the purpose reduced discharging.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use to send out
Bright.These embodiments obviously easily can be made various amendment by person skilled in the art, and at this
The General Principle illustrated is applied in other embodiments without through performing creative labour.Therefore, the present invention does not limits
In above-described embodiment, those skilled in the art are according to the announcement of the present invention, without departing from changing that scope is made
Entering and revise all should be within protection scope of the present invention.
Claims (9)
1. a liquid organic-fuel Multi-purpose energy-saving combustion system, it is characterised in that including:
Combustion apparatus: the organic-fuel after vaporization is burnt, and make the flue gas of organic-fuel burning generation return
Vaporising device carries out waste heat recovery；
Vaporising device: accept the flue gas that organic-fuel burning produces, flue gas and liquid organic-fuel carry out heat exchange, make
Liquid organic-fuel vaporizes, and the flue gas after heat exchange enters flue gas condenser and carries out the degree of depth recovery of fume afterheat；
Flue gas condenser: utilize the waste heat of the flue gas that vaporising device flows out that relevant working medium is heated, drop further
Low flue-gas temperature, it is achieved the cascade utilization of fume afterheat, the relevant working medium after heating enters combustion apparatus simultaneously, carries
High burning efficiency.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system the most according to claim 1, its feature exists
In, described combustion apparatus includes boiler, air compressor machine or electromotor burner.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system the most according to claim 1, its feature exists
In, the fuel of described combustion apparatus includes organic-fuel or natural gas.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system the most according to claim 1, its feature exists
In, described vaporising device is gas liquid exchanger.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system the most according to claim 1, its feature exists
In, in addition to carrying out heat exchange by flue gas and liquid organic based fuels, described vaporising device is self by hot water, steam
Or electrical heating carries out heat exchange to liquid organic based fuels so that it is vaporization.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system the most according to claim 1, its feature exists
In, described flue gas condenser includes economizer or air preheater.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system the most according to claim 1, its feature exists
In, after described flue gas condenser is to flue gas heat exchange, make flue-gas temperature be less than its dew point temperature, water in recovered flue gas
The latent heat of steam, simultaneously during flue gas condensing generates condensed water, removes and includes carbide, nitride and sulfur
Compound is at interior harmful substance.
A kind of liquid organic-fuel Multi-purpose energy-saving combustion system the most according to claim 1, its feature exists
In, described relevant working medium is the standby combustion air of the combustion heat or water.
9. a liquid organic-fuel Multi-purpose energy-saving combustion method, it is characterised in that comprise the following steps:
Combustion step: burn the organic-fuel after vaporization, produces required energy, and organic-fuel burning produces
Flue gas return vaporising device carry out flue gas waste heat recovery；
Pervaporation step: liquid organic-fuel is vaporized process by vaporising device, the organic-fuel after vaporization supplies
Should give combustion apparatus, the flue gas that on the one hand vaporization institute calorific requirement produces for organic-fuel burning after vaporization, on the other hand
For hot water, steam or electrical heating that vaporising device is external；
The degree of depth of fume afterheat reclaims: flue gas condenser utilizes the waste heat of flue gas after vaporizing heat exchange to carry out relevant working medium
Heating, reduces flue-gas temperature, it is achieved the cascade utilization of fume afterheat further, and the relevant working medium after heating is entered simultaneously
Enter combustion apparatus, improve efficiency of combustion, in the degree of depth recycling step of fume afterheat, described flue gas condenser pair
After flue gas heat exchange, making flue-gas temperature be less than its dew point temperature, the latent heat of water vapour in recovered flue gas, simultaneously at flue gas
During condensation generates condensed water, remove the harmful substance including carbide, nitride and sulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225519.4A CN104832230B (en) | 2015-05-05 | 2015-05-05 | A kind of liquid organic-fuel Multi-purpose energy-saving combustion system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225519.4A CN104832230B (en) | 2015-05-05 | 2015-05-05 | A kind of liquid organic-fuel Multi-purpose energy-saving combustion system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832230A CN104832230A (en) | 2015-08-12 |
| CN104832230B true CN104832230B (en) | 2016-08-24 |
Family
ID=53810370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510225519.4A Active CN104832230B (en) | 2015-05-05 | 2015-05-05 | A kind of liquid organic-fuel Multi-purpose energy-saving combustion system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104832230B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114585804A (en) * | 2019-09-06 | 2022-06-03 | I.V.A.R.股份有限公司 | Novel combined thermodynamic cycle with high energy recovery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294306A (en) * | 1993-04-08 | 1994-10-21 | Mitsubishi Heavy Ind Ltd | Methanol evaporating method for methanol gas burning turbine compound plant |
| CN2795467Y (en) * | 2005-05-30 | 2006-07-12 | 闫中民 | Alcohol burning device for gasoline engine |
| CN103485868A (en) * | 2013-09-09 | 2014-01-01 | 华南理工大学 | Auxiliary combustion device using tail gas waste heat to gasify alcohol |
-
2015
- 2015-05-05 CN CN201510225519.4A patent/CN104832230B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06294306A (en) * | 1993-04-08 | 1994-10-21 | Mitsubishi Heavy Ind Ltd | Methanol evaporating method for methanol gas burning turbine compound plant |
| CN2795467Y (en) * | 2005-05-30 | 2006-07-12 | 闫中民 | Alcohol burning device for gasoline engine |
| CN103485868A (en) * | 2013-09-09 | 2014-01-01 | 华南理工大学 | Auxiliary combustion device using tail gas waste heat to gasify alcohol |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104832230A (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101324331B (en) | Method for combustion by replacing oil with coal | |
| CN102200275B (en) | Combustion device for dewatering upgradation of lignite and reduction of nitrogen oxide emission and method thereof | |
| CN103234198B (en) | Microfine coal oxygen-enriched burning process and system | |
| CN202002119U (en) | Treatment device for condensation, gasification and incineration of organic waste liquid via flue gas | |
| AU2015371529A1 (en) | Device and method for thermal exhaust gas cleaning | |
| CN100467946C (en) | Combustion system for changing methanol into hydrogen fuel used in industrial furnace and thermal power plant. | |
| Park et al. | CFD analysis on bioliquid co-firing with heavy fuel oil in a 400 MWe power plant with a wall-firing boiler | |
| CN104832230B (en) | A kind of liquid organic-fuel Multi-purpose energy-saving combustion system and method | |
| CN103292303B (en) | System for recycling latent heat of water steam in tail gas of Slapple activating furnace | |
| CN101413674A (en) | Oxygen-enriched air mixed blowing combustion adjuvant boiler energy-saving method and employed equipment thereof | |
| CN104089279B (en) | Low nitrogen burning system | |
| JP2008256226A (en) | Distilled spirit lees treatment method and device | |
| CN104089299B (en) | Low nitrogen burning method | |
| CN105202537A (en) | Combustion system and combustion method | |
| CN206435053U (en) | Sulphur is hydrogenated with recycling and processing device | |
| CN202692101U (en) | Vehicular oil burning boiler and tail inert gas purification equipment | |
| CN111928273B (en) | Organic waste liquid combustion system and method adopting oxygen-enriched combustion technology | |
| CN108679604A (en) | A kind of mixed sky/cigarette light-hydrocarbon gas prepares burner | |
| CN207991349U (en) | Steam and residual heat using device in flue gas | |
| CN107166383A (en) | A kind of oxygen-enriched few-oil ignition system of boiler | |
| CN103267349B (en) | Energy-saving boiler | |
| CN105885952A (en) | Waste carbon recycling method and system | |
| CN217209343U (en) | Coal fired boiler flue gas waste heat utilization and water intaking system of blending burning ammonia | |
| CN104930522A (en) | Multi-phase vertical high-temperature suspension-burning harmless incineration boiler | |
| CN111412473A (en) | Gasification combustion utilization method and system suitable for high-humidity solid waste material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |