CN216557662U - Multifunctional methanol hot-blast stove using methanol fuel - Google Patents
Multifunctional methanol hot-blast stove using methanol fuel Download PDFInfo
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- CN216557662U CN216557662U CN202121972887.2U CN202121972887U CN216557662U CN 216557662 U CN216557662 U CN 216557662U CN 202121972887 U CN202121972887 U CN 202121972887U CN 216557662 U CN216557662 U CN 216557662U
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Abstract
The utility model discloses a multifunctional methanol hot blast stove using methanol fuel, which comprises a stove body, a combustion chamber, a heat exchange chamber, a fresh air inlet, a fresh air axial flow fan, a hot air outlet, a hot air mixing chamber, a hot air outlet grid, a smoke outlet, a smoke axial flow fan, a function selection switch valve and a hot blast stove controller. The multifunctional methanol hot-blast stove has two modes of direct heat exchange and indirect heat exchange, can work between the two modes of direct heat exchange and heat exchange, can be switched at any time according to the process condition, and has the characteristics of simple and convenient switching mode, high heat energy utilization rate and the like. The utility model adopts single loop heat exchange, avoids the installation of a centrifugal fan, reduces the equipment cost and noise, and is convenient for users to use.
Description
Technical Field
The utility model discloses a multifunctional methanol hot-blast stove using methanol fuel, in particular to a drying device which has the advantages of safe and reliable fuel, clean combustion, environmental protection, high efficiency, changeable size of equipment (distributed energy can be realized, product modularization is realized), convenient and quick maintenance, and suitability for grain drying, medicinal material drying, kitchen drying, lathe material drying and the like.
Background
The hot blast stove is a device for burning fuel, heating air and producing hot blast, and the common hot blast stove mainly comprises a fuel burning system, a heat exchange system and a smoke discharging and dust removing system. As an important process device, hot blast stoves are widely used in various industrial sectors, and are used for heating, steel making, cement drying, material drying and the like.
Methanol is a good fuel, has an octane number of 100, and combustion products only contain carbon dioxide and water, and can be synthesized by utilizing greenhouse gas carbon dioxide due to various synthesis modes, so that the methanol is also called liquid sunlight. The concept of 'liquid sunlight' confirms the important value of methanol as a renewable liquid energy source, and the methanol can be widely applied to various fields to realize sustainable development of energy sources. The methanol has good performance in energy conservation, low carbon and practical application, and meets the requirements of China on energy safety, energy conservation, environmental protection, low carbon life and the like.
The utility model discloses a multifunctional hot blast stove using methanol fuel, which makes full use of the characteristics of cleaning and high combustion temperature of methanol, and the flue gas of the hot blast stove is clean enough to directly dry grains and food. The hot air can meet the requirements of different working conditions and different processes on hot air at high temperature.
Disclosure of Invention
The utility model relates to a multifunctional methanol hot-blast stove using methanol fuel, in particular to hot-blast heating equipment which has the advantages of safe and reliable fuel, clean combustion, environmental protection and high efficiency, can be changed into large or small equipment (can realize distributed energy and product modularization), is convenient and quick to maintain, and is suitable for grain drying, medicinal material drying, fruit and vegetable drying, textile drying, plastic spraying solidification in the surface treatment industry, paint baking rooms, industrial material drying and the like.
In order to realize the purpose, the hot blast stove has two modes of indirect hot blast and direct hot blast, and can switch the functional modes at any time.
A multifunctional methanol hot blast stove using methanol fuel comprises a methanol fuel burner, a stove body, a combustion chamber, a heat exchange chamber, an air inlet, an axial flow fan, a hot air outlet, a hot air mixing chamber, a hot air outlet grid, a smoke outlet smoke exhaust pipe, a smoke axial flow fan, a function selection air valve, a hot blast stove controller and the like.
The methanol combustion device is characterized in that the methanol combustion device and a control system thereof, the methanol vaporizer and the methanol fuel pump are arranged in the combustion chamber, liquid methanol fuel enters the methanol vaporizer after being pressurized by the methanol fuel pump, the liquid methanol fuel enters the methanol combustion device for combustion after being vaporized by the methanol vaporizer, and the liquid methanol fuel is in direct contact with the heat exchange tube in the heat exchange chamber and is used for heating air in the heat exchange tube.
The multifunctional methanol hot-blast stove is characterized in that a heat exchange tube is arranged in a heat exchange chamber, one side of the heat exchange tube is an air inlet, the other side of the heat exchange tube is a hot air outlet, and the heat exchange tube is fixed on a stove body. The heat exchange tube is directly contacted with flame of a burner and used for heating an air medium in the heat exchange tube, and the heated heat medium enters the hot air mixing chamber from the hot air outlet. The heat exchange tubes are arranged side by side, at least 2 rows of the heat exchange tubes are arranged from the front to the back of the hot blast stove, and the number of the heat exchange tubes can be increased or reduced according to actual requirements such as smoke exhaust temperature.
The left side of the multifunctional methanol hot-blast stove is provided with an axial flow fan which is used for pressurizing and feeding fresh air into the heat exchange tube, and the fresh air enters the hot air mixing chamber from the other end of the heat exchange tube after being heated.
The smoke outlet of the multifunctional methanol hot-blast stove is arranged at the upper end of the hot-blast stove, and the upper end of the hot-blast stove is uniformly contracted into a cone shape and is connected with a smoke exhaust pipe. The utility model discloses a hot-blast furnace, including multi-functional hot-blast furnace flue gas outlet, hot-blast furnace flue gas outlet, function selection blast valve is the ooff valve, and when the valve closure state, burning flue gas and hot-air get into hot-air mixing chamber simultaneously, and the hot-blast furnace is the direct type, and when the valve was opened, only fresh air got into hot-air mixing chamber, and the hot-blast furnace is indirect formula, and the user can carry out the mode function according to the technology demand and switch over into direct type or indirect formula hot-blast furnace.
The right side of the flue switch of the multifunctional methanol hot blast stove is provided with a flue gas axial flow fan, and when a flue gas switch valve is in a closed state, the flue gas axial flow fan blows flue gas into a hot air mixing chamber to be mixed with hot air in a heat exchange pipe and then enters a hot air outlet grid for drying materials.
The multifunctional methanol hot-blast stove has two modes of direct heat exchange and indirect heat exchange, can also work between the two modes of direct heat exchange and heat exchange, can be switched at any time according to the process condition, and has the characteristics of simple and convenient switching mode, high heat energy utilization rate and the like.
The hot air mixing chamber is connected with hot air outlet grids on two sides of the hot air furnace body, the grids are made of foldable metal sheets and used for adjusting the size of outlet air flow, and a user can adjust the outlet air speed and the air quantity according to the opening size of the outlet grids.
Furthermore, a hot blast stove controller is arranged on the hot blast stove body, and the controller is connected with the burner control device, the smoke outlet temperature detector, the smoke outlet smoke sensor and the hot blast outlet temperature detector and is used for controlling the operation of the hot blast stove.
Drawings
FIG. 1 is a schematic structural view of a methanol hot-blast stove using methanol fuel according to the present invention
1. The hot blast stove comprises a hot blast stove body 2, a combustion chamber 3, a fresh air axial flow fan 4, a heat exchange chamber 5, a heat exchange pipe 6, an air inlet 7, a stove body air inlet grid 8, a smoke axial flow fan 10, a function selection air valve 11, a smoke outlet 12, a hot air outlet 13, a hot air mixing chamber 14, a combustion wall 15, a hot air outlet grid 16 and a hot blast stove controller.
The following detailed description of the embodiments of the utility model is provided in connection with the accompanying drawings
Embodiment 1
Fig. 1 is a schematic structural diagram of an embodiment of a multifunctional methanol hot blast stove using methanol fuel according to the present invention. The multifunctional methanol hot-blast stove body 1 using the methanol fuel comprises a combustion chamber 2 and a heat exchange chamber 4 arranged in the stove body, wherein the stove body is provided with a fresh air axial flow fan 3, a heat exchange pipe 5, a fresh air inlet 6, a stove body air inlet grid 7, a smoke axial flow fan 8, a function selection switch valve 10, a smoke outlet 11, a hot air outlet 12, a hot air mixing chamber 13, a combustion wall 14, a hot air outlet grid 15 and a hot-blast stove controller 16.
Embodiment 2
As shown in FIG. 1, the present invention works as follows
Methanol fuel from an external storage tank is connected to a methanol fuel pump in the combustion chamber 2 through a pipeline, liquid methanol fuel is pressurized by the fuel pump and then enters a methanol vaporizer in the combustion chamber 2, gasified gaseous methanol fuel is combusted by a methanol combustor in the combustion chamber 2, combustion flame and combustion flue gas are in contact with a heat exchange tube 5 in a heat exchange chamber 4 and are used for heating air in the heat exchange tube 5, the flue gas after heat exchange is regulated by a function selection air valve 10 and is discharged into the atmosphere through a flue gas outlet 11 or enters a hot air mixing chamber 13, and the mixed hot air is discharged through a hot air outlet grid 16 and is used for drying materials.
Embodiment 3
A heat exchange tube 5 is arranged in a heat exchange chamber of the multifunctional methanol hot blast stove, one side of the heat exchange tube is an air inlet 6, the other side of the heat exchange tube is a hot air outlet 11, and the heat exchange tube is fixed on a stove body. The heat exchange tube is directly contacted with flame of a burner and is used for heating a medium in the heat exchange tube, and the heated heat medium enters a hot air mixing chamber 12 from a hot air outlet 11. The heat exchange tube is made of thin-wall stainless steel, the cross section of the heat exchange tube can be round or rectangular and can be a light tube or a finned tube, the heat exchange mode is a multi-level single-loop heat exchange mode, a centrifugal fan is avoided being installed, the equipment cost is reduced, meanwhile, the noise is reduced, and the heat exchange tube is convenient for a user to use.
Embodiment 4
The left side of the multifunctional methanol hot blast stove of the embodiment is provided with a fresh air axial flow fan 4 which is used for feeding fresh air into a heat exchange tube 5, and the fresh air enters a hot air mixing chamber 12 from a hot air outlet 11 at the other side of the heat exchange tube after being added.
Embodiment 5
The smoke outlet of the multifunctional methanol hot blast stove is arranged at the upper end of the hot blast stove, and the upper end of the hot blast stove is uniformly contracted into a cone shape and is contracted to a small opening of 10-20 cm. The smoke outlet of the multifunctional hot blast stove is provided with a function selection air valve 10, and the smoke flow can be adjusted at any time according to the process requirement.
The right side of the flue switch of the multifunctional methanol hot blast stove is provided with a flue gas axial flow fan 8, and when the function selection air valve is in a closed state, the flue gas axial flow fan 8 blows flue gas into a hot air mixing chamber 13 to be mixed with hot air in the heat exchange tube 5, and then the mixed flue gas enters a hot air outlet grid for drying materials.
The multifunctional methanol hot-blast stove has two modes of direct heat exchange and indirect heat exchange, can work between the two modes of direct heat exchange and heat exchange, can be switched at any time according to the process condition, and has the characteristics of simple and convenient switching mode, high heat energy utilization rate and the like.
The hot air mixing chamber is further connected with hot air outlet grilles at two sides of the hot blast stove body, the grilles are made of foldable metal sheets and used for adjusting the size of outlet air flow, and the outlet air quantity of the grilles is adjusted at any time according to the requirements of two side heat branches.
Embodiment 9
Further, a hot blast stove controller 16 is arranged on the hot blast stove body, and the controller is connected with the burner control device, the smoke outlet temperature detector, the smoke outlet smoke sensor and the hot blast outlet temperature detector and is used for controlling the operation of the hot blast stove.
Claims (4)
1. The multifunctional methanol hot blast stove using the methanol fuel is characterized by comprising a stove body, a combustion chamber, a heat exchange chamber, a fresh air inlet, a fresh air axial flow fan, a hot air outlet, a hot air mixing chamber, a hot air outlet grid, a smoke outlet, a smoke axial flow fan and a function selection switch valve, wherein a heat exchange tube of the multifunctional methanol hot blast stove adopts single-loop heat exchange, is directly contacted with flame of the burner and is used for heating a medium in the heat exchange tube, and the heated heat medium enters the hot air mixing chamber from the hot air outlet.
2. The multifunctional methanol hot blast stove using methanol fuel according to claim 1, wherein the multifunctional methanol hot blast stove has two modes of direct type or indirect type or works between the two modes of direct type and indirect type, and is switched at any time according to process conditions.
3. The multifunctional methanol hot blast stove using methanol fuel as claimed in claim 1, wherein the hot air outlet grill of the multifunctional methanol hot blast stove is made of foldable metal sheets, and is used for adjusting the size of the outlet air flow, and adjusting the outlet air volume of the grill at any time according to the requirements of hot air on two sides.
4. The multifunctional methanol hot blast stove using methanol fuel as claimed in claim 1, wherein the heat exchange tube material is thin-walled stainless steel, the heat exchange tube has a circular or rectangular cross section, and the heat exchange tube has a shape of a light pipe or a finned pipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020217717690 | 2020-08-24 | ||
| CN202021771769 | 2020-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216557662U true CN216557662U (en) | 2022-05-17 |
Family
ID=81563449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121972887.2U Active CN216557662U (en) | 2020-08-24 | 2021-08-22 | Multifunctional methanol hot-blast stove using methanol fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216557662U (en) |
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2021
- 2021-08-22 CN CN202121972887.2U patent/CN216557662U/en active Active
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