CN209484846U - Methanol oxidation heating device - Google Patents
Methanol oxidation heating device Download PDFInfo
- Publication number
- CN209484846U CN209484846U CN201920074384.XU CN201920074384U CN209484846U CN 209484846 U CN209484846 U CN 209484846U CN 201920074384 U CN201920074384 U CN 201920074384U CN 209484846 U CN209484846 U CN 209484846U
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- China
- Prior art keywords
- inner tube
- heating
- coil pipe
- bucket
- heating bucket
- 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.)
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 238000010438 heat treatment Methods 0.000 title claims abstract description 101
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 26
- 230000003647 oxidation Effects 0.000 title claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides a kind of methanol oxidation heating device, is related to heating equipment technical field, solves the technical problem that heat exchange area is small, heat exchange efficiency is low.The methanol oxidation heating device includes heating bucket, inner tube and coil pipe, and inner tube setting is in heating bucket；Coil pipe is located between inner tube and heating bucket along heating bucket axial screw capstan, and coil pipe one end is connected to by connecting tube with inner tube；Catalyst is filled up at the gap of coil pipe；Heating device further includes inlet duct, exhaust apparatus, heat transferring medium gatherer and heat transferring medium guiding device, and inlet duct and exhaust apparatus are connected to heating barrel cavity；Heat transferring medium gatherer is connected to inner tube or coil pipe, and heat transferring medium guiding device is connected to the coil pipe other end or inner tube.The utility model expands the stroke of heat exchange area, heat-conducting medium storage level and heat-conducting medium in equipment, improves heat exchange efficiency.
Description
Technical field
The utility model relates to heating equipment technical fields, more particularly, to a kind of methanol oxidation heating device.
Background technique
China obtains heat using boiler on a large scale in manufacturing each fields such as industry, service trade, people's livelihood life at present
Energy.Boiler is a kind of to obtain the device of heat in the way of heating by the temperature of flame by burning fuel.The combustion
Material includes natural gas, coal, fuel oil, firewood, biological particles, methanol.It is heated using these fuel combustions, existing defect is such as
Under: combustion reaction is insufficient, imperfect combustion occurs；Furthermore harmful substance can be discharged, such as: sulfur oxide, nitrogen oxide, an oxidation
Carbon, fine particulates etc. have seriously affected air quality, welding；Although combustion of natural gas is relatively clean, its pipe network
Majority concentrates on down town, it is difficult to cover full scope.
In order to solve a series of problems present in combustion heating, currently on the market, there is a kind of flameless combustion device,
The new heating method of thermal energy can be obtained without burning fuel, this flameless combustion device is carried out in reactor using methanol
The device that catalysis reaction is heated.
Applicants have discovered that at least there is following technical problem in the prior art:
Methanol oxidation heating device in the prior art has the following technical problems that heating bucket internal heat transfer surface area is small, changes
The thermal efficiency is not high；Catalyst utilization is low.
Utility model content
The purpose of this utility model is to provide methanol oxidation heating devices, to solve heat-transfer surface existing in the prior art
The technical problem that product is small, heat exchange efficiency is low.
To achieve the above object, the utility model provides following technical scheme:
A kind of methanol oxidation heating device provided by the utility model, including heating bucket, inner tube and coil pipe, said inner tube are set
It sets in the heating bucket；The coil pipe is located between said inner tube and the heating bucket along the heating bucket axial screw capstan,
And described coil pipe one end is connected to by connecting tube with said inner tube；Catalyst is filled up at the gap of the coil pipe；The heating dress
Setting further includes inlet duct, exhaust apparatus, heat transferring medium gatherer and heat transferring medium guiding device, the inlet duct and institute
Exhaust apparatus is stated to be connected to the heating barrel cavity；The heat transferring medium gatherer and said inner tube or the coil pipe connect
Logical, the heat transferring medium guiding device is connected to the coil pipe other end or said inner tube.
Said inner tube bottom is provided with mounting under inner tube, said inner tube top as a further improvement of the utility model,
It is provided with mounting in inner tube, the heat transferring medium gatherer is sequentially passed through and sealed in bucket wall and said inner tube on the upside of the heating bucket
Top, middle part, lower part or the bottom of said inner tube inner cavity are extended to after piece, the connecting tube passes through prolongs after mounting in said inner tube
Extend to top, middle part, lower part or the bottom of said inner tube inner cavity.
Said inner tube and the heating bucket is are coaxially disposed as a further improvement of the utility model, and said inner tube
Height is less than the heating bucket height.
Said inner tube both ends pass through three branch in the setting of 120 degree of angles as a further improvement of the utility model,
Frame is connect with the heating bucket, and said inner tube bottom and the heating bucket bottom have interval.
It is provided with mounting at the top of the heating bucket as a further improvement of the utility model, the exhaust apparatus is
Filter screen, the filter screen are arranged on the upper mounting, and the filter screen mesh specification is less than catalyst specification.
The heating bucket bottom is provided with lower mounting, the inlet duct packet as a further improvement of the utility model,
Air inlet pipe, methanol dropper and air blower are included, described air inlet pipe one end is threaded through on the lower mounting, the other end and the air blower
Air outlet connection, the methanol dropper is connected in the air inlet pipe.
The import of the coil pipe is located at top or bottom as a further improvement of the utility model, and the coil pipe goes out
Mouth is located at bottom or top, and the connecting tube is connect with the import of the coil pipe, and the heat transferring medium guiding device is delivery line
The lower part or top of the heating barrel side wall are set, and described delivery line one end is connect with the outlet of the coil pipe, the export
The pipe other end extends on the outside of the heating bucket after passing through the heating barrel side wall.
The heat-conducting medium in the heat transferring medium gatherer is conduction oil as a further improvement of the utility model,.
The heating bucket cross section and said inner tube cross section are circle, just as a further improvement of the utility model,
One of rectangular or rectangle；The shape that the coil pipe surrounds is identical as said inner tube cross-sectional shape.
The mesh diameter of the filter screen is not more than 6mm as a further improvement of the utility model,.
A kind of heating means heated using the methanol oxidation heating device provided by the utility model, including such as
Lower step:
Step A: catalyst is packed into the gap between said inner tube, the heating bucket and the coil pipe；
Step B: it enters in the heating bucket after air and methanol mixing through the inlet duct and is urged with catalyst
Change reaction, and discharges heat；
Step C: conduction oil by the heat transferring medium gatherer be first into said inner tube or the coil pipe into
Row exchanges heat for the first time, is then entered in the coil pipe or said inner tube and is exchanged heat by connecting tube for second of progress, after heating
Conduction oil enters in heat demand equipment through heat transferring medium guiding device export；
Step D: the catalysis of the gaseous mixture and catalyst of methanol and air generates water and carbon dioxide through institute after the reaction was completed
Exhaust apparatus is stated to be discharged to outside the heating bucket
The utility model has the following technical effect that compared with prior art
The utility model is initially entered in inner tube and is carried out by the way that inner tube, heat-conducting medium are arranged among the coil pipe in heating bucket
Primary heat exchange, then conduction oil, which enters back into, carries out secondary heat exchange in coil pipe, by the way that inner tube is arranged, expand inside heating device
Heat exchange area, the stroke of heat-conducting medium storage level and heat-conducting medium in equipment is increased on the whole, in identical equipment volume
Under, heat output is more efficient, more stable, heat output is bigger；To improve the thermal efficiency of heating device；This is practical new
Inner tube is arranged between passing through in coils in type, and more scientific distributed heat conduction oil deposit improves catalyst service efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view of the utility model methanol oxidation heating device；
Fig. 2 is that the utility model methanol oxidation heating device is dismantled the top view after filter screen；
Fig. 3 is AA cross-sectional view in Fig. 2.
1 in figure, heat bucket；11, upper mounting；2, inner tube；21, mounting under inner tube；22, mounting in inner tube；23, bracket；3,
Coil pipe；4, connecting tube；5, filter screen；6, inlet duct；61, air inlet pipe；62, methanol dropper；63, air blower；7, delivery line；8,
Ingress pipe.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
As shown in Figure 1, the utility model provides a kind of methanol oxidation heating device, including heating bucket 1, inner tube 2 and disk
Pipe 3, heating bucket 1 are vertical bucket body structure, and for the setting of inner tube 2 in heating bucket 1,2 axis of inner tube is parallel with heating 1 axis of bucket；Disk
Pipe 3 is located between inner tube 2 and heating bucket 1 along heating 1 axial screw capstan of bucket, and 3 one end of coil pipe is connected by connecting tube 4 and inner tube 2
It is logical；Catalyst is filled up at the gap of coil pipe 3；Heating device further includes inlet duct 6, exhaust apparatus, heat transferring medium gatherer
With heat transferring medium guiding device, inlet duct 6 and exhaust apparatus are connected to heating 1 inner cavity of bucket；Heat transferring medium gatherer with
Inner tube 2 or coil pipe 3 are connected to, and heat transferring medium guiding device is connected to 3 other end of coil pipe or inner tube 2.
By the way that inner tube 2 is arranged in 3 intermediate region of coil pipe so that 3 intermediate region of coil pipe is also utilized, and heat transferring medium into
Enter into inner tube 2 the reaction heat progress heat exchange with 2 outside of inner tube to extend to increase the heat exchange area of heating device
The stroke and reserves of heat transferring medium, to greatly improve the heat exchange efficiency and catalyst utilization of heating device.In the above structure
In, heat transferring medium is entered in inner tube 2 or coil pipe 3 after being imported by heat transferring medium gatherer and is once exchanged heat, then again
It enters in coil pipe 3 or inner tube 2 and carries out secondary heat exchange, finally exported by heat transferring medium guiding device.
As an alternative embodiment, 2 bottom of inner tube is provided with mounting 21 under inner tube, it is provided at the top of inner tube 2 interior
Mounting 22 on pipe, heat transferring medium gatherer sequentially pass through and extend to inner tube 2 after mounting 22 in heating 1 upside bucket wall of bucket and inner tube
Top, middle part, lower part or the bottom of inner cavity, connecting tube 4 pass through extended to after mounting 22 in inner tube 2 inner cavity of inner tube top, in
Portion, lower part or bottom.It should be noted that heat transferring medium gatherer is ingress pipe 8, ingress pipe 8 extend into the depth in inner tube 2
Degree can select according to actual needs, in the present invention, as shown in figure 3, ingress pipe 8 extend into 2 bottom of inner tube；Connecting tube 4
The depth extending into inner tube 2 can also select according to actual needs, and in the present invention, connecting tube 4 extend into 2 inner cavity of inner tube
Top.
As shown in figure 3, inner tube 2 and heating bucket 1 are coaxial arrangement, and 2 height of inner tube is less than 1 height of heating bucket.Inner tube 2 is pushed up
Between portion and heating bucket 1 top it is spaced be ingress pipe 8 and connecting tube 4 for convenience arrangement.
It is connect as shown in Fig. 2, 2 both ends of inner tube pass through three brackets 23 in the setting of 120 degree of angles with heating bucket 1, and
2 bottom of inner tube and heating 23 bottom of bucket have interval.The interval is for placing the atomizer in inlet duct 6, air inlet pipe 61
It is connected to atomizer.
It is provided with mounting 11 at the top of heating bucket 1, opening is provided on upper mounting 11, exhaust apparatus is filter screen 5, filtering
The opening on upper mounting 11 is arranged in net 5, and catalyst drops out from filter screen 5 in order to prevent, and 5 mesh specification of filter screen is less than
Catalyst specification；In the present invention, the mesh diameter of filter screen 5 is not more than 6mm.It is raw after methanol oxidation reaction in heating device
At water and carbon dioxide be discharged in atmosphere from filter screen 5 through chimney.
As optional embodiment, heats 1 bottom of bucket and be provided with lower mounting, inlet duct 6 includes air inlet pipe 61, methanol
Dropper 62 and air blower 63,61 one end of air inlet pipe are threaded through on lower mounting, and the other end is connect with the air outlet of air blower 63, methanol
Dropper 62 is connected in air inlet pipe 61.6 in inlet duct, it is in liquid pearl in 61 wall of air inlet pipe that methanol, which instills, is located at air inlet pipe
The wind impact that the air blower 63 of 61 other ends is blown out nebulizes and methanol mixed gas, and it is above-mentioned to be then blown into progress in heating bucket 1
Oxidation reaction fever.
As optional embodiment, the import of coil pipe 3 is located at top or bottom, and the outlet of coil pipe 3 is located at bottom or top
Portion, connecting tube 4 are connect with the import of coil pipe 3, and heat transferring medium guiding device is the lower part that heating 1 side wall of bucket is arranged in delivery line 7
Or top, 7 one end of delivery line are connect with the outlet of coil pipe 3,7 other end of delivery line extends to heating after passing through heating 1 side wall of bucket
1 outside of bucket.In the present invention, the outlet of coil pipe 3 is located at bottom, and delivery line 7 is located at heating 1 sidewall bottom of bucket.
It should be noted that in the present invention, the heat-conducting medium in heat transferring medium gatherer is conduction oil, certainly
Heat-conducting medium can also be made of other materials in the prior art.
Further, it heats 1 cross section of bucket and 2 cross section of inner tube is one of round, square or rectangular；At this
In utility model, as shown in Figure 1, the cross section of heating bucket 1 and inner tube 2 is circle.The shape and inner tube 2 that coil pipe 3 surrounds are horizontal
Cross sectional shape is identical.
The utility model additionally provides a kind of heating means heated using methanol oxidation heating device, including as follows
Step:
Step A: catalyst is packed into the gap between inner tube 2, heating bucket 1 and coil pipe 3；
Step B: entering to occur to be catalyzed with catalyst in heating bucket 1 and react after air and methanol mixing through inlet duct 6,
And discharge heat；
Step C: conduction oil is first into inner tube 2 or coil pipe 3 by heat transferring medium gatherer change for the first time
Then heat is entered in coil pipe 3 or inner tube 2 by connecting tube 4 and carries out second of heat exchange, the conduction oil after heating is through heat transferring medium
Guiding device export enters in heat demand equipment；
Step D: the catalysis of the gaseous mixture and catalyst of methanol and air generates water and carbon dioxide through arranging after the reaction was completed
Device of air is discharged to outside heating bucket 1.
The utility model is directed to the defect of existing heating device, and ladle body internal structure has been greatly improved, has optimized its company
Mode is connect, internal pipeline is increased；It compares existing, improves 70% heat exchange area of heating bucket, and be former heating bucket heat exchange
1.7 times of area；Therefore under equal volume, heat exchange efficiency and heat utilization efficiency are higher.And increase inner tube inside heating staving, it can
To increase the buffering of heat transferring medium, help to adapt to different working condition；The increase of inner tube can solve a barrel center catalyst and lead
The problem of thermal efficiency deficiency also improves energy conversion rate, and takes a firm foundation for heating device miniaturization；The utility model
It is a kind of no flame heating device, mainly makes the quick oxidation reaction release heat of methanol progress to heat to conduction oil,
It is the exothermic reaction by methanol oxidation, to heat-conducting oil heating, so in the exhaust gas of its generation, without harmful substance
(sulfur oxide, nitrogen oxide, carbon monoxide, finely ground particles etc.) are a kind of highly-safe, high reliablity, environment amenable wound
New device.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of methanol oxidation heating device, it is characterised in that: including heating bucket (1), inner tube (2) and coil pipe (3), said inner tube
(2) setting is in the heating bucket (1)；The coil pipe (3) is located at said inner tube (2) along heating bucket (1) the axial screw capstan
Between the heating bucket (1), and the coil pipe (3) one end is connected to by connecting tube (4) with said inner tube (2)；The coil pipe
(3) catalyst is filled up at gap；The heating device further includes inlet duct (6), exhaust apparatus, heat transferring medium gatherer
With heat transferring medium guiding device, the inlet duct (6) and the exhaust apparatus are connected to heating bucket (1) inner cavity；Institute
It states heat transferring medium gatherer to be connected to said inner tube (2) or the coil pipe (3), the heat transferring medium guiding device and the disk
Manage (3) other end or said inner tube (2) connection.
2. methanol oxidation heating device according to claim 1, it is characterised in that: in said inner tube (2) bottom is provided with
It manages lower mounting (21), is provided with mounting in inner tube (22) at the top of said inner tube (2), the heat transferring medium gatherer sequentially passes through
Extended to after mounting (22) in bucket wall and said inner tube on the upside of heating bucket (1) top of said inner tube (2) inner cavity, middle part,
Lower part or bottom, the connecting tube (4) pass through extended to after mounting (22) in said inner tube said inner tube (2) inner cavity top,
Middle part, lower part or bottom.
3. methanol oxidation heating device according to claim 1, it is characterised in that: said inner tube (2) and the heating bucket
It (1) is coaxial arrangement, and said inner tube (2) is highly less than heating bucket (1) height.
4. methanol oxidation heating device according to claim 1 or 2 or 3, it is characterised in that: said inner tube (2) both ends are equal
By three in 120 degree angles be arranged bracket (23) connect with the heating bucket (1), and said inner tube (2) bottom with it is described
Heating bucket (1) bottom has interval.
5. methanol oxidation heating device according to claim 1, it is characterised in that: be provided at the top of the heating bucket (1)
Upper mounting (11), the exhaust apparatus are filter screen (5), and the filter screen (5) is arranged on the upper mounting (11), the mistake
Strainer (5) mesh specification is less than catalyst specification.
6. methanol oxidation heating device according to claim 1, it is characterised in that: heating bucket (1) bottom is provided with
Lower mounting (12), the inlet duct (6) include air inlet pipe (61), methanol dropper (62) and air blower (63), the air inlet pipe
(61) one end is threaded through on the lower mounting (12), and the other end is connect with the air outlet of the air blower (63), the methanol drop
Pipe (62) is connected on the air inlet pipe (61).
7. methanol oxidation heating device according to claim 1, it is characterised in that: the import of the coil pipe (3) is located at top
Portion or bottom, the outlet of the coil pipe (3) are located at bottom or top, and the import of the connecting tube (4) and the coil pipe (3) connects
Connect, the heat transferring medium guiding device be delivery line (7) be arranged it is described heating bucket (1) side wall lower part or top, it is described to lead
Outlet pipe (7) one end is connect with the outlet of the coil pipe (3), after delivery line (7) other end passes through heating bucket (1) side wall
It extends on the outside of the heating bucket (1).
8. methanol oxidation heating device according to claim 1, it is characterised in that: the heating bucket (1) cross section and institute
Inner tube (2) cross section is stated as one of round, square or rectangular；The shape and said inner tube that the coil pipe (3) surrounds
(2) cross-sectional shape is identical.
9. methanol oxidation heating device according to claim 5, it is characterised in that: the mesh diameter of the filter screen (5)
No more than 6mm.
10. methanol oxidation heating device according to claim 1, it is characterised in that: in the heat transferring medium gatherer
Heat-conducting medium be conduction oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920074384.XU CN209484846U (en) | 2019-01-16 | 2019-01-16 | Methanol oxidation heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920074384.XU CN209484846U (en) | 2019-01-16 | 2019-01-16 | Methanol oxidation heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209484846U true CN209484846U (en) | 2019-10-11 |
Family
ID=68131347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920074384.XU Active CN209484846U (en) | 2019-01-16 | 2019-01-16 | Methanol oxidation heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209484846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539556A (en) * | 2019-01-16 | 2019-03-29 | 佛山市无火发热新能源科技有限公司 | Methanol oxidation heating device and heating means |
-
2019
- 2019-01-16 CN CN201920074384.XU patent/CN209484846U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539556A (en) * | 2019-01-16 | 2019-03-29 | 佛山市无火发热新能源科技有限公司 | Methanol oxidation heating device and heating means |
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Effective date of registration: 20231228 Granted publication date: 20191011 |
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