CN109780582A - A kind of liquid methanol heating stove - Google Patents
A kind of liquid methanol heating stove Download PDFInfo
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- CN109780582A CN109780582A CN201711119407.6A CN201711119407A CN109780582A CN 109780582 A CN109780582 A CN 109780582A CN 201711119407 A CN201711119407 A CN 201711119407A CN 109780582 A CN109780582 A CN 109780582A
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Abstract
The invention discloses a kind of liquid methanol heating stoves, the heating stove integrates the device of the starting of liquid low-temperature methanol, methyl alcohol vaporizing, methanol oxidation burning and water preheating, which is made of liquid methanol starting chamber, methanol and water preheating cavity, methyl alcohol vaporizing chamber, methanol oxidation combustion chamber, methanol-fueled exhaust second-time burning chamber.When operating normally, liquid methanol is preheated, vaporization, catalysis is burnt, quadric catalysis burns, and is thoroughly converted into carbon dioxide and water；The purpose of heat of releasing is used to heat water, and hot water is used for civil heating or bathroom.The present apparatus is compact-sized, methanol burning is abundant, the thermal efficiency is high；The by-products such as no CO generate, cold fluid and hot fluid is alternately distributed, it is possible to prevente effectively from hot localised points in system, system operatio safety, it can be widely applied to using methanol or other liquid fuels in the civil heating of fuel or bathroom facility, to have the characteristics that cleaning, safety, health, reliable.
Description
Technical field
The invention belongs to field of new energy technologies, in particular to a kind of liquid methanol heating stove.
Background technique
Coal-burning stove for heating has become Jing-jin-ji region and surrounding area winter most important pollution sources.These region civil coal usage amounts
It is big wide, and coal quality over-standard phenomenon is universal, causes the pollutant discharge amount of civilian coal combustion big.Burn same one ton of coal, the people
It may be to possess the several times even more than ten of the coal-burning boiler of efficient Air Pollution Control measure with the atmosphere pollution that stove discharges
Times.Resident's coal-burning stove for heating discharges the characteristics of there is also " rigid demand blowdown are high, puts the refractory reason of polydispersion ", especially winter rural area
Resident's heating, status are " two tons of one chimney of a family, winter carbon save money and buy smut, dissipate and burn refractory reason ".
According to Chinese Ministry of Environmental Protection's introduction, in recent years, rural area is had a large capacity and a wide range, the pollution of the scattered coal of low-altitude discharged becomes increasingly conspicuous.Data show,
Civil coal accounts for about 10% in Coal Consumption Structure, and every annual consumption is more than 300,000,000 tons.According to the finding of Beijing, rural area
The fire coal of the regional overwhelming majority is used for heating, and heating coal consumption accounts for 90% or so of life coal consumption total amount.It is utilized plus civil coal
Mode is mainly distributing burning, and boiler type is more, quantity is big, monomer small scale, and post-combustion pollution object essentially directly discharges,
The overwhelming majority does not take the environmental protection measures such as dedusting, desulphurization and denitration to discharge a large amount of sulfur dioxide, nitrogen oxides and particulate matter etc.
The poisonous and harmful substances such as atmosphere pollution and polycyclic aromatic hydrocarbon, BaP and mercury.It is clear in existing black carbon and polycyclic aromatic hydrocarbon discharge
Dan Zhong, civil discharge contribution about 40%.
Although China is gradually banning civil coal boiler, central heating is taken, and with the raising of natural gas popularity rate,
Largely improve civil pollution problem.But gas distributing system is difficult to be radiated outskirts of a town, County finance and agriculture
Village.And how these areas change the heating mode in these regions substantially based on fire coal, are urgently to be resolved at present ask
Topic.
Therefore, the heating of exploitation novel liquid fuel and burner technology are to realize atmosphere pollution emission reduction, improve air quality
Important measure.Alcohol radical liquid fuel is suitable for distributing or civil heating and meal due to the features such as cost performance is high, raw material is easy to get
The purpose of drink.However there is presently no the related patents report about liquid methanol heating stove, patent ZL202521600U is disclosed
A kind of methanol burner is burnt by atomization methanol, open fire, for the purpose of being used by stove；ZLZ05878143U discloses one kind and changes
Making coal burning boiler is automatic control environment protection carbinol boiler technology device, and open fire burning, ignition temperature are high, suitable for larger operating condition.
Methanol combustion furnace disclosed in ZL204404269U only discloses its schematic diagram, is burnt using open fire, fails to disclose how to realize peace
The contents such as full smooth combustion.ZL203068554U discloses a kind of methanol gasifying burning system using built-in heating methanol evaporator
System is needed using the pre- hot methanol of electric heating.
It can be seen that alcohol based gas range or substitution burner are mostly using preheating type or complicated structure system
System gasifies to realize, starting ignition still needs to preheat, inconvenient to use, and waste of energy and time.Therefore, it is necessary to develop more
Supernumerary segment energy, efficient liquid fuel gas-cooker or heating system.
Summary of the invention
For presently disclosed alcohol radical liquid fuel heating facility system, structure is complicated, starting ignition needs preheating, using not
Convenient, and the features such as waste of energy and time, the present invention proposes a kind of rational technology, high without outer heat supply quick start, energy conservation
Effect, integrated level high liquid methanol igniting, methanol gasifying, catalytic combustion system and hot-water heating system.
The technical solution adopted by the present invention are as follows:
Liquid methanol heating stove of the present invention can be realized the infeed of liquid methanol cold-starting, not need outer heat supply
System integrates the device of the starting of liquid low-temperature methanol, methyl alcohol vaporizing, methanol oxidation burning and water preheating, including methanol one
Secondary combustion chamber (A), methyl alcohol vaporizing chamber (B), methanol second-time burning chamber (C), methanol preheating cavity (D), water heating chamber (F), water preheating
Chamber (E)；Methanol oxidation combustion chamber and methanol preheating cavity, vaporization chamber and water preheating cavity, water heating chamber are alternately arranged；The arrangement of chamber
Sequence preferentially according to temperature difference minimum, hot and cold alternation between chamber and chamber, combines the principle nearest in the flow direction of each chamber.
In start-up mode, the starting air of a part of liquid methanol and infeed is directly in once catalysis combustion chamber (A)
Starting is realized in catalysis burning, and imperfect combustion methanol is in (C) intracavitary continuation full combustion；Another methanol passes sequentially through (D)
Chamber-(B) chamber, is preheated and is gasified, and is then mixed with methanol above-mentioned and air, then passes through (A) chamber and (C) chamber；To entire
After catalytic bed preheating, it is switched to normal operation mode；
When operating normally, close and be fed directly into the liquid methanol and air of (A) chamber He (C) chamber, whole liquid methanols according to
It is secondary after methanol preheating cavity (D), methyl alcohol vaporizing chamber (B), and the air mixing fed, using primary catalysis combustion chamber (A),
Quadric catalysis combustion chamber (C), discharge system；Water passes through water preheating cavity (F), water heating chamber (E), then carries out heat as heat source
It utilizes.
The chamber of different function of the present invention is using rectangular or rectangular fin structure.
The low-temperature methanol starting is that liquid methanol starts at (- 40 DEG C~40 DEG C) of lower temperature.
The methanol primary combustion chamber and the intracavitary loaded particles shape combustion catalyst of second-time burning or wall carried catalyst.
In the startup mode, liquid methanol directly catalysis burning on a catalyst, is fully converted to carbon dioxide and water.
In the normal operating mode, liquid methanol it is preheated, vaporization after, gas methanol is catalyzed combustion on combustion catalyst
It burns, is fully converted to carbon dioxide and water.
By liquid methanol, the catalysis combustion heat release in once catalysis combustion chamber realizes system for the low-temp methanol starting
Starting.
Air when the starting air and normal operation passes through air pump, air-introduced machine, self-priming or air compressor and enters
Device.Air feeds catalysis combustion chamber by air distribution pipe, the aperture of 0.2-2mmm spaced apart, the aperture such as on air distribution pipe
Rate 5-60%, at a certain angle downward aperture.
A kind of application of liquid methanol heating stove, the device be applied to the kitchen range that methanol and other alcohol-based liquids are fuel and
Civil heating facility.
Methanol heating stove of the present invention uses whole plate fin structure, passes through cross-flow or counterflow heat exchange between each chamber,
Heat transfer distances are short, can timely cooling, keep each intracavitary uniform Temperature Distribution.
Methanol combustion chamber of the present invention, interior filling and wall supported noble metal combustion catalyst, the liquid methanol and warp of infeed
Methanol after vaporization and the air mixing by air distribution pipe infeed, may be implemented the constant temperature catalyzing combustion of gaseous state or liquid methanol
It burns.
The aperture of 0.2-2mmm spaced apart, the percent opening 5-60%, with certain angle such as on air distribution pipe of the present invention
The contrary direction aperture of degree and chamber forces air-flow to be uniformly distributed, wherein starting air passes through air pump, air-introduced machine, self-priming
Or air compressor enters device.
Combustion catalyst active component in the present invention is one of non-noble metal oxide, noble metal or two kinds of group
It closes, is supported on the inert carriers such as particle, ceramic honeycomb, metal beehive, ceramics or metallic fiber and is made, the catalyst
The catalysis burning of liquid or gaseous methanol can be realized at normal temperature.
In the startup mode, liquid methanol is fed by pump, a part of methanol I and the sky introduced by air pump or air-introduced machine
Gas is mixed into primary catalysis combustion chamber (A), and catalyst combustion reaction occurs on combustion catalyst surface；The methanol being pumped into simultaneously
A part is shunted, methanol fractions II is shunted and passes sequentially through methanol preheating cavity (D), methanol gasifying chamber (B), and the liquid being pumped directly into
Methanol mixing, react heat release in combustion chamber.After primary combustion chamber (A), combustion tail gas has through second-time burning chamber
(C) further progress catalysis burning, is fully converted to carbon dioxide and water for methanol.
As system is gradually preheated, slowly reduce the amount of direct combustion methanol I, so that the stream of the methanol B by preheating
Amount is gradually increased, until liquid methanol all passes through preheating cavity and feeds system.System completes start-up course, into normal operation mould
Formula feeds liquid water in water preheating cavity, and liquid water passes through a preheating cavity (E) and secondary preheating chamber (F), is preheated to certain
After temperature, heating for civilian use or bathroom.
Due to the implementation of above technical scheme, the invention has the following advantages over the prior art:
1. the liquid methanol heating stove that the present invention designs is not necessarily to outer heat supply, is able to achieve quick start；
2. the liquid methanol heating stove that the present invention designs is compact-sized, flexible operation, it is at low cost, be able to achieve the complete of methanol
Burning has high efficiency and economy；
3. the combustion catalyst filled in the liquid methanol heating stove that the present invention designs has strong activity and stability, make
Long with the service life, system pressure drop is small；
4. the system is suitable for methanol and other alcohol-based liquids are the facilities such as civil heating, the bathroom of fuel.
Detailed description of the invention
Fig. 1 is liquid methanol heating stove structural schematic diagram of the invention,
Fig. 2 is the flow chart of startup stage methanol and air,
Fig. 3 is the flow chart of startup stage water,
Fig. 4 is the flow chart of normal operating phase methanol and air,
Fig. 5 is the flow chart of normal operating phase water,
Wherein: A- methanol primary combustion chamber；B- methyl alcohol vaporizing chamber；C- methanol second-time burning chamber；D- methanol preheating cavity；E- water
Heating chamber；F- water preheating cavity；
Specific embodiment
With reference to the accompanying drawing to the detailed description of the invention, only presently preferred embodiments of the present invention, cannot be limited below with this
The scope of the present invention.It is i.e. all according to equivalent changes and modifications within the scope of the patent application of the present invention, all should belong to the present invention contained
The range of lid.
Embodiment 1
A kind of liquid methanol heating stove, as shown in Figure 1, the liquid methanol heating stove is the starting of collection liquid low-temperature methanol, first
Alcohol vaporization, methanol oxidation burning and water preheating in one device, including methanol primary combustion chamber (A), methyl alcohol vaporizing chamber (B),
Methanol second-time burning chamber (C), methanol preheating cavity (D), water heating chamber (E), water preheating cavity (F)；It is catalyzed by using liquid methanol
The mode of burning realizes low-temperature methanol starting, avoids that system power dissipation caused by electric heating starts is big, structure is not compact etc. enough
Disadvantage；It using two methanol combustion chambers, avoids conventional methanol heating stove and is burnt using open fire, heat utilization ratio is low, burns not
The disadvantages of abundant.Methanol oxidation combustion chamber and methanol preheating cavity, vaporization chamber and water preheating cavity, water heating chamber are alternately arranged；Chamber
Order of placement hot and cold alternation, it is preferentially minimum according to the temperature difference between chamber and chamber, combine nearest in the flow direction of each chamber
Principle.High heat waste caused by high temperature difference is avoided as far as possible, and reactor knot can be simplified by arranging nearby according to the chamber of identical function
Structure.Cold and hot chamber is alternately arranged, and greatly reduces heat transmission resistance, avoids part and hot spot occurs, improves the thermal efficiency of system
And safety.
Start the methanol heating stove, from methanol tank temperature be 20 DEG C liquid methanol by methanol pump and stop valve with
0.2L/h enters the device, and the methanol of entrance is shunted (as shown in Figure 2), and 0.18L/h liquid methanol I is directly supplied to methanol one
Secondary catalysis combustion chamber entrance；Another part 0.02L/h liquid methanol II feeds methanol preheating cavity (D), enters vaporization after preheated
Chamber (B) is then mixed with methanol I, while the 1Nm with infeed3After/h air i mixing, combustion chamber is once catalyzed into methanol
(A), (Pt/Al carried in the intracavitary filling of primary combustion or wall2O3) catalyst combustion reaction occurs on combustion catalyst, reaction is released
Heat, gradually temperature increases the outlet of primary combustion chamber, and reaction generates carbon dioxide, and the methanol of completely burned does not enter secondary combustion
Burn 0.1Nm chamber (C) and filled into3The air ii of/h is mixed, after the intracavitary full combustion of second-time burning, discharge system；Observation combustion
Cavity temperature is burnt, after reaching 200-300 DEG C of set temperature, cuts a small amount of water to regulate and control reaction temperature in set temperature range, water
The type of flow see Fig. 3；And it is gradually reduced the flow of methanol I, increase the flow of methanol II, until methanol I flow is zero, system
Into normal operation mode；
In the normal operating mode, 1. 1L/h feeds methanol preheating cavity (D) to methanol first, then passes sequentially through methyl alcohol vaporizing
Chamber (B), after vaporization 2. 80-150 DEG C of methanol enters the 5Nm that methanol is once catalyzed combustion chamber (A) and feeds3/ h air i mixing,
By being once catalyzed the combustion tail gas of burning, temperature at 200-300 DEG C 3., then with feed methanol quadric catalysis combustion chamber (C)
Air 0.5Nm3/ h mixing, mixed gas 4. in the intracavitary further catalysis burning of second-time burning, be fully converted to carbon dioxide with
Water, the gas temperature of second-time burning chamber is at 30-50 DEG C out.The type of flow of methanol and air in the heating stove, is shown in Fig. 4.
6. the liquid water of 73kg/h passes sequentially through preheating cavity (E) and heat exchanging chamber (F), be heated to 80 DEG C or so, see Fig. 5, this is heated
Hot water 5. for warming oneself or taking a shower.The methanol heating stove does not need electric heating when starting, and liquid methanol can direct ignition；This
Outside, by using catalytic combustion technology, open fire burning is avoided, the dosage of methanol is considerably reduced, 50% can also be saved
Methanol.
Claims (10)
1. a kind of liquid methanol heating stove, it is characterised in that the liquid methanol heating stove is the starting of collection liquid low-temperature methanol, methanol
Vaporization, methanol oxidation burning and water preheating are in the device of one, including methanol primary combustion chamber (A), methyl alcohol vaporizing chamber (B), first
Alcohol second-time burning chamber (C), methanol preheating cavity (D), water heating chamber (E), water preheating cavity (F)；Methanol oxidation combustion chamber and methanol are pre-
Hot chamber, vaporization chamber and water preheating cavity, water heating chamber are alternately arranged；The order of placement of chamber preferentially according to the temperature difference between chamber and chamber most
Small, hot and cold alternation combines the principle nearest in the flow direction of each chamber；
In start-up mode, the catalysis directly in once catalysis combustion chamber (A) of the starting air of a part of liquid methanol and infeed
Starting is realized in burning, and imperfect combustion methanol is in (C) intracavitary continuation full combustion；Another methanol passes sequentially through (D) chamber-
(B) chamber is preheated and is gasified, and is then mixed with methanol above-mentioned and air, then passes through (A) chamber and (C) chamber；To entirely be catalyzed
After bed preheating, it is switched to normal operation mode；
When operating normally, the liquid methanol and air for being fed directly into (A) chamber He (C) chamber are closed, whole liquid methanols successively pass through
After crossing methanol preheating cavity (D), methyl alcohol vaporizing chamber (B), and the air mixing fed, using primary catalysis combustion chamber (A), secondary
It is catalyzed combustion chamber (C), discharge system；Water passes through water preheating cavity (F), water heating chamber (E), then carries out heat benefit as heat source
With.
2. liquid methanol heating stove according to claim 1, it is characterised in that the chamber of different function is using rectangular or rectangular
Fin structure.
3. liquid methanol heating stove according to claim 1, it is characterised in that the low-temperature methanol starting is liquid first
Alcohol starts at -40 DEG C~40 DEG C of lower temperature.
4. liquid methanol heating stove according to claim 1, feature is in the methanol primary combustion chamber and secondary combustion
Burn intracavitary loaded particles shape combustion catalyst or wall carried catalyst.
5. liquid methanol heating stove according to claim 1, feature is in the startup mode, and liquid methanol is in catalyst
Upper directly catalysis burning, is fully converted to carbon dioxide and water.
6. liquid methanol heating stove according to claim 1, it is characterised in that under normal operation mode, liquid methanol is through pre-
After heat, vaporization, gas methanol is catalyzed burning on combustion catalyst, is fully converted to carbon dioxide and water.
7. liquid methanol heating stove according to claim 1, feature is to pass through liquid in the low-temp methanol starting
Methanol catalysis combustion heat release in once catalysis combustion chamber realizes system starting.
8. liquid methanol heating stove according to claim 1, feature is in the starting air and when operating normally
Air enters device by air pump, air-introduced machine, self-priming or air compressor.
9. liquid methanol heating stove according to claim 8, it is characterised in that air is fed by air distribution pipe and is catalyzed
Combustion chamber, the aperture of 0.2-2mmm spaced apart, percent opening 5-60%, the at a certain angle downward aperture such as on air distribution pipe.
10. the application of liquid methanol heating stove according to claim 1, it is characterised in that the device be applied to methanol and its
His alcohol-based liquid is the kitchen range and civil heating facility of fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119407.6A CN109780582B (en) | 2017-11-14 | 2017-11-14 | Liquid methanol heating stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119407.6A CN109780582B (en) | 2017-11-14 | 2017-11-14 | Liquid methanol heating stove |
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| Publication Number | Publication Date |
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| CN109780582A true CN109780582A (en) | 2019-05-21 |
| CN109780582B CN109780582B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711119407.6A Active CN109780582B (en) | 2017-11-14 | 2017-11-14 | Liquid methanol heating stove |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322633A (en) * | 2020-04-27 | 2020-06-23 | 北京燕东兆阳新能源科技有限公司 | Methanol vaporization mixer and methanol vaporization mixing method |
| CN112146154A (en) * | 2020-08-18 | 2020-12-29 | 广东醇氢新能源研究院有限公司 | Heating method with quick start |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509464A (en) * | 1982-07-26 | 1985-04-09 | Hansen Herbert N W | High efficiency internal combustion steam engine |
| CN1995889A (en) * | 2005-12-28 | 2007-07-11 | 中国科学院大连化学物理研究所 | Catalytic combustion evaporator |
| CN201028506Y (en) * | 2007-04-04 | 2008-02-27 | 王衍衡 | Combustor with liquid methanol translated into hydrogen fuel |
| CN101462694A (en) * | 2007-12-19 | 2009-06-24 | 中国科学院大连化学物理研究所 | Miniaturized methanol self-heating reforming hydrogen making integrated apparatus and hydrogen production method |
-
2017
- 2017-11-14 CN CN201711119407.6A patent/CN109780582B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509464A (en) * | 1982-07-26 | 1985-04-09 | Hansen Herbert N W | High efficiency internal combustion steam engine |
| CN1995889A (en) * | 2005-12-28 | 2007-07-11 | 中国科学院大连化学物理研究所 | Catalytic combustion evaporator |
| CN201028506Y (en) * | 2007-04-04 | 2008-02-27 | 王衍衡 | Combustor with liquid methanol translated into hydrogen fuel |
| CN101462694A (en) * | 2007-12-19 | 2009-06-24 | 中国科学院大连化学物理研究所 | Miniaturized methanol self-heating reforming hydrogen making integrated apparatus and hydrogen production method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322633A (en) * | 2020-04-27 | 2020-06-23 | 北京燕东兆阳新能源科技有限公司 | Methanol vaporization mixer and methanol vaporization mixing method |
| CN112146154A (en) * | 2020-08-18 | 2020-12-29 | 广东醇氢新能源研究院有限公司 | Heating method with quick start |
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| Publication number | Publication date |
|---|---|
| CN109780582B (en) | 2020-09-04 |
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