Energy-saving liquid fuel electrothermal gasification furnace with heat recovery

Abstract

The application discloses an energy-saving liquid fuel electrothermal gasification furnace with heat recovery, which comprises a furnace head, a combustion nozzle, a shell, an energy recovery system and a heating tube heating system, the furnace head is matched with the shell, a gasification cavity is formed between the furnace head and the shell, the energy recovery system and the heating tube heating system are arranged in the gasification cavity, the furnace head is a hollow structure, the combustion nozzle is arranged in the furnace head and is communicated with the gasification cavity, liquid fuel flows into the gasification cavity through the energy recovery system, the heating tube heating system is arranged below the energy recovery system, and the gasification cavity is provided with an air outlet. The energy recovery system is arranged, so that the heat generated by the combustion nozzle during combustion can be conducted into the gasification cavity through the furnace head, the liquid fuel flowing into the energy recovery system is gasified through the heat recovered from the part, energy is recycled, an atomization structure does not need to be additionally arranged, and the overall structure is simplified. The heating tube heating system is arranged, so that when the combustion nozzle is ignited, the heating tube heating system can rapidly raise the liquid fuel to a high temperature, then the intermittent ignition of the combustion nozzle is realized, the effect of rapid ignition is realized, and the ignition time is controlled within one minute, and the ignition is convenient.

Description

Technical Field

[0001] The present invention belongs to an important component of a liquid fuel electric heating gasification furnace, and in particular relates to an energy-saving liquid fuel electric heating gasification furnace with heat recovery. Background Art

[0002] With the promotion and use of liquid fuel stoves, many liquid fuel stoves have appeared on the market. However, when such stoves are used, since the fuel is liquid and has a high ignition point, when they are used to ignite, the sprayed fuel needs to be gradually vaporized. At the beginning of ignition, the vaporization amount is very small. As the temperature gradually rises, the vaporization amount gradually increases. When a sufficient temperature is reached, the ignition work can be truly completed. The entire ignition process takes a long time. Generally, it takes 10-15 minutes to ignite. It is inconvenient to ignite and it takes a long time to ignite. In order to ensure stable firepower during the entire combustion process, it is generally necessary to install an atomizing device to first atomize the liquid fuel and then vaporize it. The overall structure is relatively complex. For example, a liquid fuel stove disclosed in application number 202111218540.3 is provided with an atomizing combustion nozzle 2, which is connected to the main fuel inlet 11, so that the fuel sprayed from the main fuel inlet is atomized through the atomizing combustion nozzle 2. However, when this type of stove is in use, the atomized fuel is still in liquid form. Therefore, although the ignition time is shorter than that of conventional liquid fuel stoves, it still takes several minutes, which is time-consuming. At the same time, the fuel atomized by the atomizing combustion nozzle 2 tends to sink and scatter around the nozzle, resulting in a waste of resources. Summary of the Invention

[0003] The object of the present invention is to provide an energy-saving liquid fuel electric gasifier with heat recovery that can solve at least one of the above problems.

[0004] According to one aspect of the present invention, an energy-saving liquid fuel electric gasification furnace with heat recovery is provided, comprising a burner, a combustion nozzle, an outer shell, an energy recovery system and a heating tube heating system. The burner and the outer shell cooperate to form a gasification chamber between the burner and the outer shell. The energy recovery system and the heating tube heating system are both arranged in the gasification chamber. The burner has a hollow structure, the combustion nozzle is arranged in the burner, and the combustion nozzle is connected to the gasification chamber. The liquid fuel flows into the gasification chamber via the energy recovery system. The heating tube heating system is located below the energy recovery system, and the gasification chamber is provided with an air outlet.

[0005] The beneficial effects of the present application are: by providing the energy recovery system, the heat generated during the combustion of the burner nozzle is facilitated to be conducted to the gasification cavity through the furnace head, the liquid fuel flowing into the energy recovery system is gasified through the heat recovered by this part, so that the energy is recycled and utilized, without the need to additionally increase the atomization structure, simplifying the overall structure; by providing the heating tube heating system, the heating tube heating system can quickly raise the liquid fuel to a high temperature when the burner nozzle is ignited, and then through the intermittent ignition of the burner nozzle, the effect of rapid ignition is realized, and the ignition time is controlled within one minute, which is convenient for ignition.

[0006] In some embodiments, the energy recovery system includes an oil guide pipe, one end of the oil guide pipe enters oil, and the other end flows out after winding around the upper part of the furnace head, and the oil guide pipe is wound around the outer periphery of the furnace head. Therefore, the liquid fuel in the oil guide pipe can be fully heated and warmed by winding around the oil guide pipe, and after flowing out through the other end, it can be quickly gasified in the high-temperature environment of the gasification cavity to provide continuous fuel gas.

[0007] In some embodiments, the oil guide pipe is located above the burner nozzle. Therefore, after the burner nozzle is ignited and burned, the high temperature is conveniently conducted to the oil guide pipe through the furnace head.

[0008] In some embodiments, the heating tube heating system includes a heating tube, and the heating tube is located below the oil guide pipe, and the liquid fuel flowing out of the oil guide pipe can drop on the heating tube. Therefore, by providing the heating tube, the heating tube can be quickly warmed after being electrified, thereby facilitating the rapid warming of the liquid fuel in the initial state.

[0009] In some embodiments, the energy-saving liquid fuel electric heating gasification furnace with heat recovery further includes an oil filter disc, the oil filter disc is arranged in the gasification cavity, the oil filter disc is located below the other end of the oil guide pipe, and a plurality of oil holes are arranged on the oil filter disc. Therefore, by providing the oil filter disc and the plurality of oil holes, the liquid fuel dropped from the oil guide pipe can be evenly scattered and dropped, the heating area is increased, and the rapid gasification of the fuel is realized.

[0010] In some embodiments, the energy-saving liquid fuel electric heating gasification furnace with heat recovery further includes an inner container, a top plate and a bottom plate, the inner container is tightly attached to the outer side of the furnace head, the outer shell, the inner container, the top plate and the bottom plate form a gasification cavity, the inner container is located between the outer shell and the furnace head, and the oil guide pipe is wound around the outer periphery of the inner container. Therefore, by providing the inner container, the top plate and the bottom plate, the formation of the gasification cavity in different installation occasions can be met, and different use requirements can be met.

[0011] In some embodiments, the energy-saving liquid fuel electric heating gasification furnace with heat recovery further includes an air outlet pipe, one end of the air outlet pipe extends into the gasification cavity after penetrating through the air outlet, and the other end of the air outlet pipe is connected in communication with the furnace head. Therefore, by providing the air outlet pipe, the communication between the gasification cavity and the burner nozzle is facilitated.

[0012] In some embodiments, the energy-saving liquid fuel electrothermal gasification furnace with heat recovery further comprises a fixing seat fixed to the shell, the combustion nozzle is installed on the fixing seat, and the other end of the gas outlet pipe penetrates through the fixing seat and is communicated with the combustion nozzle. Thus, the fixing seat is provided, so that the combustion nozzle can be conveniently installed and fixed.

[0013] In some embodiments, the energy-saving liquid fuel electrothermal gasification furnace with heat recovery further comprises an NTC temperature sensor arranged in the gasification cavity. Thus, the NTC temperature sensor is provided, so that the temperature in the gasification cavity can be monitored in real time. When the temperature in the gasification cavity rises to a corresponding temperature, the heating tube is powered off, so that the heating tube does not need to be always powered on, the service life of the heating tube is greatly improved, and thus the overall service life is improved.

[0014] In some embodiments, the energy-saving liquid fuel electrothermal gasification furnace with heat recovery further comprises a buffer, one end of the oil guide pipe extends outside the shell and is communicated with the buffer. Thus, the buffer is provided, so that the flow rate of the liquid fuel in the oil guide pipe can be effectively prevented from being too fast, the fuel in the pipe can be conveniently fully absorbed heat, and the fuel gasification requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of one embodiment of the energy-saving liquid fuel electrothermal gasification furnace with heat recovery of the present application.

[0016] Figure 2 is an exploded structural schematic view of Figure 1 .

[0017] Figure 3 is a sectional structural schematic view of Figure 1 .

[0018] Figure 4 is a structural schematic view of another embodiment of the energy-saving liquid fuel electrothermal gasification furnace with heat recovery of the present application.

[0019] Figure 5 is an exploded structural schematic view of Figure 4 .

[0020] Figure 6 is a sectional structural schematic view of Figure 4 . DETAILED DESCRIPTION

[0021] The present application will be further described in detail below with reference to the drawings.

[0022] Reference Figures 1-6The energy-saving liquid fuel electric heating gasification furnace with heat recovery comprises a furnace head 1, a combustion nozzle 2, an outer shell 3, an energy recovery system 4 and a heating tube heating system 5, the furnace head 1 is matched with the outer shell 3, a gasification cavity 6 is formed between the furnace head 1 and the outer shell 3, the energy recovery system 4 and the heating tube heating system 5 are arranged in the gasification cavity 6, the furnace head 1 is a hollow structure, the combustion nozzle 2 is arranged in the furnace head 1, the combustion nozzle 2 is communicated with the gasification cavity 6, the liquid fuel flows into the gasification cavity 6 through the energy recovery system 4, the heating tube heating system 5 is located below the energy recovery system 4, and the gasification cavity 6 is provided with a gas outlet 61.

[0023] In the actual assembly process, the combustion nozzle 2 is installed below the upper end surface of the furnace head 1, so that the furnace head 1 has a certain fire gathering effect, the firepower during use is improved, and the purpose of saving fuel gas is achieved. The combustion nozzle 2 is in a semispherical shape, a plurality of gas injection ports 21 are formed in the combustion nozzle 2, and the gas injection ports 21 are distributed on the combustion nozzle 2 in a diverging manner, which is beneficial to improving the use experience of the liquid fuel electric heating gasification furnace and achieving the combustion effect of the existing gas stove.

[0024] When ignition is needed, the temperature in the gasification cavity 6 is relatively low, the liquid fuel flows into the gasification cavity 6 through the energy recovery system 4 and directly drops downward on the heating tube heating system 5, the heating tube heating system 5 can be rapidly heated after being powered on, so that the liquid fuel can be rapidly heated; at the same time, intermittent ignition is performed at the combustion nozzle 2, so that the fuel can be rapidly heated and gasified, the ignition time is greatly shortened, the ignition can be completed in about 30 seconds, the use is convenient, and the liquid fuel electric heating gasification furnace is suitable for wide promotion.

[0025] When the combustion nozzle 2 is burning, the high temperature during combustion can be conducted to the gasification cavity 6 through the side wall of the furnace head 1, so that the temperature of the gasification cavity 6 also remains in a high-temperature state; the energy recovery system 4 utilizes the high temperature during combustion to realize rapid heating of the fuel and achieve a gasification state, so that the energy is fully utilized and the purpose of energy saving is achieved. At the same time, the high-temperature heat generated during combustion of the combustion nozzle 2 is directly utilized, without the need to additionally increase an atomization or gasification structure, so that the assembly is convenient and the overall structure is greatly simplified, which is beneficial to reducing the overall cost.

[0026] The energy recovery system 4 comprises an oil guide pipe 41, one end of the oil guide pipe 41 is arranged to flow into oil, the oil flows out from the other end after flowing around the upper portion of the furnace head 1, and the oil guide pipe 41 is arranged around the outer periphery of the furnace head 1. When the combustion nozzle 2 is continuously burning, the temperature in the gasification cavity 6 can be maintained in a high-temperature state, the liquid fuel in the oil guide pipe 41 can be heated to a relatively high temperature after flowing around for one round, and then flows out; after flowing out, the high temperature of the gasification cavity 6 can make the fuel gasify, and then flow out from the gas outlet 61, so as to continuously provide gaseous fuel for the combustion nozzle, and ensure the continuity and stability of combustion.

[0027] The oil guide pipe 41 is located above the burner head 2. As a result, after the burner head 2 is ignited, the high temperature is transferred to the oil guide pipe 41 through the burner head 1. Therefore, when the fuel flows into the oil guide pipe 41, the liquid fuel can be quickly heated.

[0028] like Figure 3 As shown, in one embodiment, the oil guide pipe 41 is directly wound around the outside of the side wall of the burner head 1 to facilitate high-temperature conduction. In this embodiment, the upper end surface of the outer shell 3 is flush with and sealed to the upper end surface of the burner head 1, and the lower end surface of the outer shell 3 is flush with and sealed to the lower end surface of the burner head 1. A vaporization chamber 6 is formed between the outer wall of the burner head 1 and the inner wall of the outer shell 3. The device in this embodiment is used in households. The direct formation of the vaporization chamber 6 between the outer wall of the burner head 1 and the inner wall of the outer shell 3 helps reduce the overall volume, making it suitable for household use.

[0029] The heating tube heating system 5 includes a heating tube 51, which is located below the oil guide tube 41. The liquid fuel flowing out of the oil guide tube 41 can drip onto the heating tube 51. The heating tube 51 can be powered by an external wire to work. Specifically, when ignition is required in the initial state, the temperature in the vaporization chamber 6 is relatively low. Therefore, the heating tube 51 is turned on and the heating tube 51 heats up quickly, so that the liquid fuel dripping onto the heating tube 51 can be quickly heated up, and intermittent ignition is performed at the combustion nozzle 2, so that the fuel can be quickly heated up and vaporized, which greatly shortens the ignition time. Compared with the existing method of gradually raising the temperature of the liquid fuel from room temperature and completing continuous vaporization, this method significantly shortens the operation time.

[0030] The heating tube 51 is wound around the outside of the inner tank 11 and forms a U-shape. This U-shape ensures the required power for the heating tube 51 and also shortens the distance between the two ends of the heating tube 51, facilitating electrical connections and simplifying overall wiring. Both ends of the heating tube 51 extend through the bottom of the vaporization chamber 6. This facilitates installation of the heating tube 51 and connection of the two ends of the heating tube 3 to external wiring.

[0031] The energy-saving liquid fuel electric gasification furnace for recycling of the present invention also includes an NTC (Negative Temperature Coefficient Sensor) temperature sensor 40, which is arranged in the gasification chamber 6. By providing the NTC temperature sensor 40, the temperature in the gasification chamber 6 can be monitored in real time. When the combustion nozzle 2 is continuously burning, the temperature of the gasification chamber 6 gradually increases. When it rises to a certain temperature, the temperature in the gasification chamber 6 exceeds the heating temperature of the heating tube 51, and the heating tube 51 is powered off. As a result, the heating tube 51 does not need to be in a state of power supply and heating all the time. Since the conventional life of the heating tube 51 is shorter than that of other structures such as the furnace body, in the present invention, the heating tube 51 only needs to be started when ignition is started, and the heating tube 51 is mostly in a non-working state, thereby greatly improving the service life cycle of the heating tube 51, thereby improving the overall service life and achieving the purpose of reducing the cost of use.

[0032] The energy-saving liquid fuel electric gasifier with heat recovery of the present invention also includes an oil filter pan 7, which is disposed within the gasification chamber 6 and below the other end of the oil guide tube 41. The oil filter pan 7 is provided with a plurality of oil holes 71. Through the oil filter pan 7, the liquid fuel at the other end of the oil guide tube 41 drips into the oil filter pan 7 after flowing down and is dispersed, thereby increasing the heating surface area of ​​the fuel. Furthermore, at the beginning of ignition, the liquid fuel drips through the plurality of oil holes 71 onto the heating tube 51, increasing the heating surface area and facilitating the rapid heating of the fuel.

[0033] When the burner nozzle is burning stably, the vaporization chamber 6 reaches a high temperature state, and the fuel in the oil guide pipe 41 is close to being vaporized. Therefore, when the fuel drips and disperses on the oil filter pan 7, the temperature rise of the fuel is accelerated. As the fuel drips, it is further heated and vaporized.

[0034] like Figures 4-6 As shown, in another embodiment, an energy-saving liquid fuel electric gasifier with heat recovery further includes an inner liner 8, a top plate 9, and a bottom plate 10. The inner liner 8 is closely attached to the outside of the burner head 1. The outer shell 3, the inner liner 8, the top plate 9, and the bottom plate 10 form a vaporization chamber 6. The inner liner 8 is located between the outer shell 3 and the burner head 1, and the oil guide pipe 41 is arranged around the outer circumference of the inner liner 8. The inner liner 8 is closely attached to the outer wall of the sieve head 1, facilitating direct heat transfer. The vaporization chamber in this embodiment can be enlarged according to actual use requirements to meet commercial requirements.

[0035] The energy-saving, liquid fuel electric gasifier with heat recovery of the present invention also includes an outlet pipe 20. One end of the outlet pipe 20 extends through the outlet port 61 into the gasification chamber 6, and the other end communicates with the burner head 1. Because the outlet port 61 is directly formed on the side wall of the gasification chamber, the outlet pipe 20 can be directly inserted into the gasification chamber to draw out the gas, making installation easy.

[0036] The energy-saving liquid fuel electrothermal gasification furnace with heat recovery of the present application further comprises a fixing base 30 fixed with the shell 3, the combustion nozzle 2 is installed on the fixing base 30, and the other end of the air outlet pipe 20 is communicated with the combustion nozzle 2 after penetrating through the fixing base 30. In the household type, the fixing base 30 can be directly welded and fixed on the bottom of the shell 3; in the commercial type, since the bottom of the shell is welded and fixed with a bottom plate, the fixing base 30 can be welded and fixed on the bottom plate to realize the fixation with the shell.

[0037] The energy-saving liquid fuel electrothermal gasification furnace with heat recovery further comprises a buffer 50, one end of the oil guide pipe 41 extends outside the shell 3 and is communicated with the buffer 50. The buffer 50 is a buffer for buffering the flow rate of the liquid fuel in the prior art, and the buffer 50 can effectively avoid the excessive speed of the liquid fuel entering the oil guide pipe 41.

[0038] The above is only the preferred embodiment of the present application, and it should be noted that, for those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. Energy saving liquid fuel electrothermal gasification furnace with heat recovery, characterized in that, The energy-saving liquid fuel electric heating gasification furnace with heat recovery comprises a furnace head (1), a combustion nozzle (2), an outer shell (3), an energy recovery system (4) and a heating tube heating system (5), the furnace head (1) is matched with the outer shell (3), a gasification cavity (6) is formed between the furnace head (1) and the outer shell (3), the energy recovery system (4) and the heating tube heating system (5) are arranged in the gasification cavity (6), the furnace head (1) is a hollow structure, the combustion nozzle (2) is arranged in the furnace head (1), the combustion nozzle (2) is communicated with the gasification cavity (6), liquid fuel flows into the gasification cavity (6) through the energy recovery system (4), the heating tube heating system (5) is located below the energy recovery system (4), and the gasification cavity (6) is provided with an air outlet (61). The energy recovery system (4) comprises an oil guide pipe (41), one end of the oil guide pipe (41) is arranged to flow into liquid fuel, and the other end of the oil guide pipe (41) flows out after winding around the upper portion of the furnace head (1), and the oil guide pipe (41) is arranged around the outer periphery of the furnace head (1). The oil guide pipe (41) is located above the combustion nozzle (2). The heating tube heating system (5) comprises a heating tube (51), the heating tube (51) is located below the oil guide pipe (41), and the liquid fuel flowing out of the oil guide pipe (41) can drop on the heating tube (51). The energy-saving liquid fuel electric heating gasification furnace with heat recovery further comprises an oil filter disc (7), the oil filter disc (7) is arranged in the gasification cavity (6), the oil filter disc (7) is located below the other end of the oil guide pipe (41), and a plurality of oil holes (71) are arranged on the oil filter disc (7). After the liquid fuel at the other end of the oil guide pipe (41) flows down, the liquid fuel drops into the oil filter disc (7) and spreads, and then drops on the heating tube (51) through the plurality of oil holes (71).

2. The energy efficient liquid fuel electrothermal gasification furnace with heat recovery according to claim 1, characterized in that, Further comprising an inner container (8), a top plate (9) and a bottom plate (10), the inner container (8) is tightly attached to the outer side of the furnace head (1), the outer shell (3), the inner container (8), the top plate (9) and the bottom plate (10) form the gasification cavity (6), the inner container (8) is located between the outer shell (3) and the furnace head (1), and the oil guide pipe (41) is arranged around the outer periphery of the inner container (8).

3. The energy efficient liquid fuel electrothermal gasification furnace with heat recovery as claimed in claim 2 wherein, Further comprising an air outlet pipe (20), one end of the air outlet pipe (20) penetrates through the air outlet (61) and extends into the gasification cavity (6), and the other end of the air outlet pipe (20) is communicated with the furnace head (1).

4. The energy efficient liquid fuel electrothermal gasification furnace with heat recovery according to claim 3, characterized in that, Further comprising a fixing seat (30), the fixing seat (30) is fixed with the outer shell (3), the combustion nozzle (2) is installed on the fixing seat (30), and the other end of the air outlet pipe (20) penetrates through the fixing seat (30) and is communicated with the combustion nozzle (2).

5. The energy efficient liquid fuel electrothermal gasification furnace with heat recovery as claimed in claim 4 wherein, Further comprising an NTC temperature sensor (40), the NTC temperature sensor (40) is arranged in the gasification cavity (6).

6. The energy efficient liquid fuel electrothermal gasification furnace with heat recovery as claimed in claim 5 wherein, Further comprising a buffer (50), one end of the oil guide pipe (41) extends outside the outer shell (3) and is communicated with the buffer (50).

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