Disclosure of Invention
In view of the above, the embodiment of the invention provides an alcohol-based fuel combustion device, which can adapt to liquid alcohol-based fuel and can improve the gasification speed of the alcohol-based fuel, thereby improving the energy utilization rate.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an alcohol-based fuel combustion apparatus comprising:
A gasification tray for containing liquid fuel; the gasification disc is provided with an overflow pipe;
The fuel disc is positioned below the gasification disc in the vertical direction and is communicated with the oil overflow pipe;
The first end of the oil feeding pipe is communicated with the gasification disc;
A return pipe, the first end of which is communicated with the fuel disk; and
And the flow control mechanism is communicated with the second end of the oil supply pipe and the second end of the return pipe and can control the flow of fuel flowing into the gasification disk.
Further, the flow control mechanism includes:
An oil feeding barrel communicated with the second end of the oil feeding pipe and communicated with a fuel source through an oil feeding pipe;
the lower oil drum is positioned below the upper oil drum in the vertical direction and is communicated with the second end of the return pipe; and
And the control switch is used for controlling the oil inlet pipe to be closed when the liquid level of the lower oil drum rises to a high position, and controlling the oil inlet pipe to be opened when the liquid level of the lower oil drum falls to a low position.
Further, the control switch includes:
The floating block is positioned in the lower oil drum and can move up and down under the buoyancy action of liquid fuel of the lower oil drum;
The first end of the connecting rod is connected with the floating block, and the second end of the connecting rod stretches into the oil feeding barrel; and
The plugging block is positioned in the oil feeding barrel, and the bottom end of the plugging block is fixedly connected with the second end of the connecting rod; the blocking block is used for blocking the oil inlet pipe.
Further, the control switch further includes:
the sleeve is vertically arranged, the first end of the sleeve is fixedly connected with the floating block, and the second end of the sleeve is in telescopic connection with the first end of the connecting rod; and
And a jackscrew for fixing the sleeve and the connecting rod.
Further, the control switch further includes:
the guide pipe is vertically arranged and penetrates through the bottom plate of the oil feeding barrel; the connecting rod penetrates through the guide tube.
Further, the flow control mechanism further includes:
The bracket is connected with the upper oil drum and the lower oil drum;
The upper oil drum and the lower oil drum are coaxially arranged, and a gap is arranged between the upper oil drum and the lower oil drum.
Further, the gasification disc is annular and is provided with a baffle plate;
An oil feeding port is arranged on the side wall of the gasification disc, which is positioned on the first side of the baffle plate; the oil supply port is communicated with the oil supply pipe;
an oil overflow port is arranged on the bottom plate positioned on the second side of the baffle plate on the gasification plate; the oil spilling port is communicated with the oil spilling pipe.
Further, the gasification tray further comprises:
A plurality of legs; the first end of each supporting leg is fixedly connected with the bottom plate of the gasification plate, and the second end of each supporting leg is contacted with the fuel plate;
the area of the gasification disk is smaller than that of the fuel disk, and the vertical projection of the gasification disk is positioned at the central part of the fuel disk.
Further, a plurality of air pipes are arranged on the bottom plate of the fuel disk in a penetrating way; the first end of each air pipe is used for communicating outside air, and the second end of each air pipe stretches into the cavity of the fuel disc;
a plurality of flexible material blocks are arranged in the fuel disc; each flexible material block is positioned in a gap between the air pipes.
Further, the alcohol-based fuel combustion apparatus further includes:
A housing; the gasification disk and the fuel disk are positioned inside the shell, and the flow control mechanism is positioned outside the shell; and
And one end of the ignition device is fixed on the shell, and the other end of the ignition device stretches into the cavity of the fuel disk.
By adopting the technical scheme, the invention has the following technical progress:
Alcohol-based fuels such as methanol are liquid at normal temperature. The liquid fuel enters the oil feeding pipe through the flow control mechanism, then flows into the gasification disk, enters the fuel disk through the overflow pipe, finally returns into the flow control mechanism through the return pipe, and the flow path forms circulation. The gasification plate and the fuel plate are used for containing liquid fuel, and when the fuel in the fuel plate burns, the gasification plate is heated, so that the fuel in the gasification plate is gasified rapidly. The fuel is converted from liquid state to gas state to generate pressure, and the high-pressure gasification combustion ensures that the combustion speed of the fuel is improved, and the combustion is more complete and thorough.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: the alcohol-based fuel combustion device in the scheme can be suitable for liquid fuel, the gasification speed of the fuel is high, the combustion is complete, the flame temperature is high, the firepower is sufficient, the heating speed is high, the energy utilization rate is improved, and the popularization and the application of environmental protection energy are promoted.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to illustrate the technical scheme of the invention, the following description is made by specific examples.
An embodiment of the present invention provides an alcohol-based fuel combustion apparatus, which, as shown in fig. 1, includes a gasification tray 10 for containing liquid fuel, a fuel tray 20, an oil supply pipe 30, a return pipe 40, and a flow control mechanism. The gasification plate 10 is provided with an overflow pipe 11. The fuel tray 20 is located vertically below the gasification tray 10 and communicates with the spillway pipe 11. A first end of feed oil pipe 30 communicates with gasification tray 10. The first end of the return line 40 communicates with the fuel tray 20, and the flow control mechanism communicates with the second end of the feed line 30 and the second end of the return line 40 and is capable of controlling the flow of fuel into the gasification tray 10.
Alcohol-based fuels such as methanol are liquid at normal temperature. Liquid fuel enters the oil feed pipe 30 through the flow control mechanism, then flows into the gasification disk 10, then enters the fuel disk 20 through the overflow pipe 11, finally returns into the flow control mechanism through the return pipe 40, and the flow path forms a circulation. The gasification tray 10 and the fuel tray 20 are both used for containing liquid fuel, and when the fuel in the fuel tray 20 burns, the gasification tray 10 is heated to quickly gasify the fuel located in the gasification tray 10. The fuel is converted from liquid state to gas state to generate pressure, and the high-pressure gasification combustion ensures that the combustion speed of the fuel is improved, and the combustion is more complete and thorough.
In the combustion process, when the temperature reaches about 65 ℃, the alcohol-based fuel starts to be converted into gas, the combustion speed of the alcohol-based fuel can reach 0.7 kg/min under the high-pressure gasification combustion state, the energy is saved by more than 60%, the flame temperature is increased to more than 1100 ℃ by high-speed full combustion, the firepower is strong, the heating speed is high, and the alcohol-based fuel is suitable for the fields of industrial boilers, civil kitchen ranges, drying equipment, resident heating and the like.
The combustion apparatus in this embodiment circulates the liquid fuel in the flow control mechanism, the oil feed pipe 30, the gasification tray 10, the fuel tray 20, and the return pipe 40 before use. After igniting the fuel in the fuel tray 20, the fuel in the gasification tray 10 may be substantially completely gasified, at which time the fuel continues to flow into the gasification tray 10 through the fuel feed pipe 30 for gasification combustion. When the use is completed, the flow rate into the gasification tray 10 is reduced or stopped by the flow control mechanism, the flame of combustion is reduced to gradually extinguish, and the residual liquid fuel remains in the fuel tray 20 or returns to the flow control mechanism.
As an example, as shown in connection with fig. 2, 3 and 4, the flow control mechanism includes an upper oil tank 51, a lower oil tank 52 and a control switch 53. The upper oil drum 51 communicates with the second end of the oil feed pipe 30 and communicates with the fuel source through the oil feed pipe 511. The lower oil tank 52 is located vertically below the upper oil tank 51 and communicates with the second end of the return pipe 40. The control switch 53 controls the oil inlet pipe 511 to be closed when the liquid level of the lower oil drum 52 rises to a high level, and controls the oil inlet pipe 511 to be opened when the liquid level of the lower oil drum 52 falls to a low level.
Liquid fuel in the fuel source flows into the upper oil drum 51 through the oil inlet pipe 511 and then into the gasification tray 10 through the oil feed pipe 30. The fuel in the gasification tray 10 enters the fuel tray 20 through the spillway pipe 11 and returns to the lower oil tank 52 through the return pipe 40. When the fuel in the gasification tray 10 is fully gasified and combusted, only a small part of the liquid fuel which is not fully gasified enters the fuel tray 20 and returns to the lower oil drum 52 through the return pipe 40, at this time, the liquid level in the lower oil drum 52 is maintained at a low level, and the control switch 53 controls the oil inlet pipe 511 to be opened, so that the liquid fuel is continuously added to the upper oil drum 51, the oil feed pipe 30 and the gasification tray 10.
When the liquid feeding speed is higher than the fuel burning speed in the gasification tray 10, the gasified liquid fuel returns to the lower oil drum 52 through the fuel tray 20 and the return pipe 40, and the liquid level in the lower oil drum 52 gradually rises to a high level, and the control switch 53 controls the oil inlet pipe 511 to be closed, so that the fuel addition to the gasification tray 10 is stopped. The flow control mechanism in this embodiment can automatically regulate the flow of fuel, so that the fuel in the gasification disk 10 is fully gasified and combusted, and the problem that the fuel cannot be fully combusted due to too high liquid adding speed, thereby causing resource waste can be avoided.
Preferably, the second end of the oil feed pipe 30 communicates with the bottom plate of the upper oil tank 51 so that the fuel in the upper oil tank 51 completely flows into the oil feed pipe 30 to avoid accumulation in the upper oil tank 51. Preferably, the return line 40 communicates with the bottom sidewall of the lower tank 52 to facilitate the return of liquid fuel into the lower tank 52.
In the present embodiment, as shown in fig. 4 and 5, the control switch 53 includes a float 531, a link 532, and a blocking block 533. The float 531 is located in the lower oil tank 52 and can move up and down by buoyancy of the liquid fuel of the lower oil tank 52. The first end of the link 532 is connected to the floating block 531 and the second end extends into the oil can 51. The blocking block 533 is located in the upper oil drum 51, and the bottom end is fixedly connected to the second end of the link 532. The blocking block 533 is used to block the oil inlet pipe 511. Preferably, the blocking block 533 is vertically aligned with the oil inlet pipe 511.
When the fuel in the gasification tray 10 is fully gasified and combusted, only a small part of the liquid fuel which is not fully gasified enters the fuel tray 20 and returns to the lower oil drum 52 through the return pipe 40, at this time, the liquid level in the lower oil drum 52 is maintained at a low level, and the buoyancy received by the floating block 531 is small and also at a low level. The floating block 531 drives the connecting rod 532 to move downwards, and the connecting rod 532 drives the blocking block 533 to move downwards, so that the oil inlet pipe 511 is opened, and at this time, the oil inlet pipe 511 continuously adds liquid fuel into the upper oil drum 51, the oil feeding pipe 30 and the gasification tray 10.
When the liquid adding speed is higher than the fuel burning speed in the gasification tray 10, the gasified liquid fuel returns to the lower oil drum 52 through the fuel tray 20 and the return pipe 40, the liquid level in the lower oil drum 52 gradually rises to a high position, the buoyancy received by the floating block 531 increases and floats upwards, the connecting rod 532 is driven to move upwards, the connecting rod 532 drives the blocking block 533 to move upwards, the oil inlet pipe 511 is blocked by the blocking block 533 finally, and feeding is stopped.
In this embodiment, as shown in connection with fig. 4 and 5, the control switch 53 further includes a sleeve 534 and a jack 535 for securing the sleeve 534 and the link 532. The sleeve 534 is disposed vertically and has a first end fixedly connected to the float 531 and a second end telescopically connected to the first end of the link 532.
The floating block 531 is made of floating materials, after a period of use, the floating block 531 is soaked by alcohol-based fuel, the floating performance is changed, the ascending or descending distance is changed under the action of the buoyancy of the same size, the jackscrew 535 is required to be unscrewed at the moment, and the telescopic distance between the connecting rod 532 and the sleeve 534 is adjusted so as to adapt to the change of the ascending or descending distance of the floating block 531.
In this embodiment, when the liquid level in the lower oil drum 52 is constant and the distance between the blocking block 533 and the oil inlet pipe 511 is increased, it is explained that the floating performance of the floating block 531 is deteriorated and the rising distance is decreased, and at this time, the telescopic distance between the link 532 and the sleeve 534 is increased to compensate for the rising distance decreased due to the deterioration of the floating performance of the floating block 531.
Specifically, as shown in connection with fig. 4 and 5, the control switch 53 further includes a guide tube 536. The guide tube 536 is vertically disposed and is installed on the bottom plate of the oil can 51. Link 532 is disposed through guide tube 536. The guide tube 536 serves as a stop and guide. The connecting rod 532 is vertically arranged, in order to avoid bending deformation of the upper end of the connecting rod 532, the sealing block 533 cannot be used for feeding the oil pipe 511 of the connecting rod 532, the guide pipe 536 is penetrated on the bottom plate of the upper oil drum 51, and the connecting rod 532 is penetrated in the guide pipe 536.
In this embodiment, as shown in connection with fig. 2 and 3, the flow control mechanism further includes a bracket 54. The bracket 54 connects the upper oil drum 51 and the lower oil drum 52. The upper end of the bracket 54 supports the upper oil drum 51 and the lower end is connected to the lower oil drum 52. The upper and lower oil tanks 51 and 52 are coaxially disposed, and a gap is provided between the upper and lower oil tanks 51 and 52, so that the telescopic distance between the link 532 and the sleeve 534 is conveniently adjusted, or the floating performance of the floating mass 531 is checked. Preferably, the gap distance is dependent on the length of the link 532 and the location of the connection between the link 532 and the sleeve 534.
Preferably, a support plate is further arranged at the top end of the oil feeding barrel 51, an oil inlet is formed in the support plate, and the oil inlet pipe 511 penetrates through the oil inlet and is aligned with the blocking block 533 in the vertical direction. The support plate plays a role in limiting and guiding the oil inlet pipe 511.
As an example, as shown in connection with fig. 1 and 6, the gasification plate 10 is annular and provided with a baffle 12. The gasification tray 10 is provided with an oil feed port on a side wall of the first side of the baffle plate 12. The oil feed port communicates with the oil feed pipe 30. An oil overflow port is arranged on the bottom plate of the second side of the baffle plate 12 on the gasification disk 10. The oil overflow port is communicated with the oil overflow pipe 11.
The liquid fuel enters the gasification disk 10 through the oil feed pipe 30 and the oil feed port, flows around the annular groove for one circle, and then falls into the fuel disk 20 through the oil overflow port and the oil overflow pipe 11. Upon combustion, the fuel entering the gasification tray 10 is gasified and combusted during the flow process. Preferably, the gasification plate 10 has a spiral ring shape, and the flow time of the fuel in the ring groove is prolonged, so that the liquid fuel is fully gasified and combusted. The middle part of the gasification disk 10 is provided with a through hole, so that flames in the fuel disk 20 can rise conveniently, the flames are concentrated in the middle part, and the fire power is strong and the heating speed is high.
Specifically, as shown in connection with FIG. 1, the gasification tray 10 also includes a plurality of legs 13. The first end of each leg 13 is fixedly connected to the bottom plate of the gasification tray 10 and the second end is in contact with the fuel tray 20. The fuel tray 20 supports each leg 13, and each leg 13 supports the gasification tray 10. The area of the gasification disk 10 is smaller than that of the fuel disk 20, and the vertical projection of the gasification disk 10 is positioned at the center of the fuel disk 20, so that flames in the fuel disk 20 can intensively heat the gasification disk 10, and the gasification combustion of fuel in the gasification disk 10 is accelerated.
As an example, as shown in fig. 1 and 7, a plurality of air pipes 21 are provided in a bottom plate of the fuel tray 20. The first end of each air duct 21 is used for communicating with the outside air, and the second end extends into the cavity of the fuel tray 20. A plurality of flexible material blocks 22 are disposed within the fuel disk 20. Each block 22 of flexible material is located in a gap between the respective ductwork 21.
The air duct 21 plays a role in ventilation, negative pressure exists in the fuel disk 20 during combustion, wind blows into the fuel disk 20 from the outside, and the fuel burns more violently and sufficiently due to unidirectional wind. Further, since the alcohol-based fuel starts to form carbon when the temperature reaches about 250 degrees during combustion, a plurality of flexible material blocks 22 are provided in the fuel disk 20 to absorb carbon and residues after combustion of the alcohol-based fuel. Preferably, the block 22 of flexible material is a ceramic fiber ester.
As one example, as shown in connection with FIG. 8, the alcohol-based fuel combustion apparatus further includes a housing and an ignition device. The gasification tray 10 and the fuel tray 20 are located inside the housing and the flow control mechanism is located outside the housing. One end of the ignition device is fixed on the housing and the other end extends into the cavity of the fuel plate 20.
In this embodiment, taking a stove as an example, the shell is taken as a stove body, the gasification tray 10 and the fuel tray 20 are positioned in the stove body, and the fuel is burnt in the hearth, so that the stove can be used for heating and cooking for civil use. The ignition device is preferably an electronic igniter, one end of which is fixed to the furnace body and the other end of which is adjacent to the fuel plate 20. Since the alcohol-based fuel is volatilized to a small extent at normal temperature, the ignition device can ignite the fuel in the fuel disk 20 only by igniting the fuel in a position close to the fuel disk 20.
In this embodiment, as shown in fig. 8, the alcohol-based fuel combustion apparatus further includes a fire cover that is cylindrical, has an axis that coincides with the axis of the fuel tray 20, and is located above the fuel tray 20. The fire cover is vertically arranged, a gap is arranged between the lower end of the fire cover and the fuel tray 20, and the upper end of the fire cover extends to the upper part of the gasification tray 10. The flame cover can concentrate the flame in the internal region of the flame cover, and the firepower is concentrated and the combustion is intense.
The alcohol-based fuel combustion device in the scheme can be suitable for liquid fuel, the gasification speed of the fuel is high, the combustion is complete, the flame temperature is high, the firepower is sufficient, the heating speed is high, the energy utilization rate is improved, and the popularization and the application of environmental protection energy are promoted.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.