Self-pressurized feeding type methanol fuel stove

Abstract

The utility model relates to a self-pressurized feeding type methanol fuel stove. The stove is arranged at the top of the shell, and a burner is arranged on the stove; the balance pipe comprises a gas inlet pipeline and a liquid outlet pipeline, the gas inlet end of the gas inlet pipeline is connected with the driving gas pump, the gas outlet end of the gas inlet pipeline is connected with the inner top of the fuel tank, the liquid inlet end of the liquid outlet pipeline is connected with the inner bottom of the fuel tank, the liquid outlet end of the liquid outlet pipeline is connected with the combustor, and a check valve is arranged between the gas inlet pipeline and the fuel tank; the ignition device is arranged on the shell and located on the portion, between the fuel tank and the combustor, of the liquid outlet pipeline. A methanol fuel pump is replaced with a pressurizing adjustment mode, the fuel tank directly supplies methanol liquid fuel to the combustor by pressurizing the fuel tank, the carbon deposition blockage phenomenon is avoided, the methanol-pump-free combustion technology is adopted, the combustion stability and firepower adjustability of the methanol stove are improved, and the failure rate of the stove is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, in particular to a self-contained pressure-feeding methanol fuel stove. Background Art

[0002] Methanol is the most promising new clean alternative energy source, and is very popular in many fields such as commerce, industry, and agriculture. Since methanol is a liquid fuel, it cannot be pressurized and liquefied, compressed, or decompressed and gasified like liquefied petroleum gas, and it cannot be automatically driven from a fuel tank to a burner like a liquefied petroleum gas tank. Currently, atomization combustion technology or gasification combustion technology is commonly used on the market.

[0003] The atomization combustion technology is to send methanol liquid fuel into the furnace core through the fuel pipe, and use a high-pressure oil pump or fan to spray the methanol fuel into the furnace for dispersed atomization combustion. In this combustion method, part of the fuel is blown away from the stove core, causing waste. In addition, the strong cold air flow reduces the flame temperature and consumes part of the energy, so the firepower is weak. To increase the temperature, the only way is to increase the consumption of methanol fuel. Due to the physical properties of methanol, the stoves made by this combustion technology have poor combustion effect, incomplete combustion, poor stability, small thermal power adjustment range, low combustion efficiency, pungent and dazzling smoke, and serious pollution. The gasification combustion technology is to first heat and gasify the methanol liquid, and the methanol phase changes to methanol gas, and then spray it from the burner nozzle for combustion. This type of combustion technology uses a method in which the vaporized methanol gas is directly ejected from the nozzle, and the ejected gas flow stirs the air for combustion. Its combustion effect is still poor, the fuel gasification is incomplete, the gasification device is seriously clogged with carbon deposits, and the carbon deposition cycle is extremely short, so it must be cleaned frequently. The combustion noise is very loud, and the flame temperature is not high, resulting in incomplete combustion and high fuel consumption.

[0004] Based on this, the utility model provides a self-contained pressure-feeding methanol fuel stove to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a self-contained pressurized feeding methanol fuel stove to solve the technical problems raised in the above-mentioned background technology that atomization combustion technology or gasification combustion technology is often used in the market to process methanol liquid fuel, but the combustion treatment method using these two types of combustion technologies will produce poor combustion effect, high fuel consumption, incomplete combustion and low combustion efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A self-contained pressure-feeding methanol fuel stove, comprising a shell, a stove, a fuel tank, a balance pipe, an ignition device, a control device and a driving air pump; the stove is arranged on the top of the shell, and a burner is arranged on the stove; the balance pipe comprises an air inlet pipe and a liquid outlet pipe, the air inlet end of the air inlet pipe is connected to the driving air pump, the air outlet end of the air inlet pipe is connected to the inner top of the fuel tank, the liquid inlet end of the liquid outlet pipe is connected to the inner bottom of the fuel tank, the liquid outlet end of the liquid outlet pipe is connected to the burner, and a check valve is arranged between the air inlet pipe and the fuel tank ; The ignition device is arranged on the shell, and the ignition device is located on the liquid outlet pipe between the fuel tank and the burner; the control device and the driving air pump are arranged on one side of the shell, and the driving air pump is electrically connected to the control device; the control device includes a PLC controller, a pressure relay and a temperature sensor, the pressure relay is arranged on the air intake pipe, and the pressure relay is located between the fuel tank and the check valve, and is used to detect the pressure in the fuel tank, and the temperature sensor is arranged on the cooker, and is used to detect the temperature of the burner.

[0008] As a preferred solution, a switch valve is provided between the liquid outlet pipe and the burner.

[0009] As a preferred solution, a panel is provided on the top of the housing, and the stove is installed on the panel.

[0010] As a preferred solution, the stove is provided with a pot rack, and the pot rack is located outside the burner.

[0011] As a preferred solution, support feet are provided at the bottom of the shell.

[0012] As a preferred solution, an integrated battery is provided in the control device, and a mobile power supply interface is also provided on the control device.

[0013] It can be seen from the technical solution provided by the utility model that the self-contained pressure-feeding methanol fuel stove provided by the utility model has the following beneficial effects compared with the prior art:

[0014] The utility model adopts a pressure charging and regulating method to replace the methanol fuel pump, and pressurizes the fuel tank to realize that the fuel tank directly supplies methanol liquid fuel to the burner, and carbon accumulation and blockage will not occur, which effectively avoids the poor reliability of the methanol fuel pump and the unsuitability for low-flow working state, resulting in unstable small-fire combustion. In addition, no matter whether the fuel tank is just filled with fuel or is about to run out of fuel, the pressure of the methanol liquid fuel output by the fuel tank can be kept constant, which effectively improves the combustion stability of the methanol stove. In short, the use of methanol-free pump-driven combustion technology improves the combustion stability and firepower adjustability of the methanol stove, and greatly reduces the failure rate of the stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a self-contained pressure-feeding methanol fuel stove provided by an embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the structure of a self-contained pressure-feeding methanol fuel stove provided in an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the installation of the air inlet pipe and the liquid outlet pipe of the self-contained pressure-feeding methanol fuel stove provided in an embodiment of the utility model.

[0018] In the figure: 1. panel; 11. fuel tank; 12. balance pipe; 121. air inlet pipe; 122. liquid outlet pipe; 13. check valve; 2. control device; 21. pressure relay; 3. driving air pump; 4. ignition device; 5. burner; 6. stove; 7. pot rack; 8. outer shell; 9. support foot; 10. switch valve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] See also Figures 1 to 3 The embodiment of the present application provides a self-contained pressure-feeding methanol fuel stove, including a housing 8, a stove 6, a fuel tank 11, a balance pipe 12, an ignition device 4, a control device 2 and a driving air pump 3. The stove 6 is arranged on the top of the housing 8, and a burner 5 is arranged on the stove 6; the balance pipe 12 includes an air intake pipe 121 and a liquid outlet pipe 122, the air intake end of the air intake pipe 121 is connected to the driving air pump 3, the air outlet end of the air intake pipe 121 is connected to the inner top of the fuel tank 11, the liquid intake end of the liquid outlet pipe 122 is connected to the inner bottom of the fuel tank 11, and the liquid outlet end of the liquid outlet pipe 122 is connected to the burner 5, and a check valve 13 is arranged between the air intake pipe 121 and the fuel tank 11; the ignition device 4 is arranged on the housing 8, and the ignition device 4 is arranged on the control device 2 and the driving air pump 3. The ignition device 4 is located on the liquid outlet pipe 122 between the fuel tank 11 and the burner 5; the control device 2 and the driving air pump 3 are arranged on one side of the outer shell 8, and the driving air pump 3 is electrically connected to the control device 2; the control device 2 includes a PLC controller, a pressure relay 21 and a temperature sensor, the pressure relay 21 is arranged on the air intake pipe 121, and the pressure relay 21 is located between the fuel tank 11 and the check valve 13, and is used to detect the pressure in the fuel tank 11, and the temperature sensor is arranged on the stove 6, and is used to detect the temperature of the burner 5.

[0025] Working principle and effect: Through the coordinated use of the control device 2, the driving air pump 3, the air inlet pipe 121 and the liquid outlet pipe 122, the internal pressure of the fuel tank 11 will change during the continuous outflow of the methanol liquid. After detecting the pressure change, the control device 2 will control the opening and closing of the driving air pump 3 to maintain the constant pressure state in the fuel tank 11. Specifically, the pressure inside the fuel tank 11 is detected by the pressure relay 21, and the pressure relay 21 transmits the detected data to the PLC controller. The PLC controller compares the obtained data with the preset pressure value. When the pressure value is high, the PLC controller controls the driving air pump 3 to turn on, so that the driving air pump 3 moves in. Gas is input into the gas pipeline 121, so that the gas enters the fuel tank 11 to adjust the pressure inside the fuel tank 11 to a constant value; when the pressure value is low, the PLC controller controls the driving air pump 3 to be closed, so that the driving air pump 3 stops inputting gas into the intake pipe 121 to adjust the pressure inside the fuel tank 11 to a constant value, so that the methanol liquid in the fuel tank 11 can stably flow out to the liquid outlet pipe 122, and is transported to the burner 5 through the liquid outlet pipe 122. Then, after the temperature sensor detects that the temperature of the burner 5 meets the required value and the pressure relay 21 detects that the pressure meets the required value, ignition is performed through the ignition device 4 for use.

[0026] Compared with the prior art, the utility model adopts a pressure charging and regulating method to replace the methanol fuel pump, and pressurizes the fuel tank 11 to enable the fuel tank 11 to directly supply methanol liquid fuel to the burner 5, without causing carbon deposits and blockages, and effectively avoids the poor reliability of the methanol fuel pump and its unsuitability for low-flow working conditions, which leads to unstable small-fire combustion. In addition, no matter whether the fuel tank 11 is just filled with fuel or is about to run out of fuel, the pressure of the methanol liquid fuel output by the fuel tank 11 can be kept constant, which effectively improves the combustion stability of the methanol stove 6. In short, the use of methanol-free pump-driven combustion technology improves the combustion stability and firepower regulation of the methanol stove 6, and greatly reduces the failure rate of the stove 6.

[0027] Furthermore, the user can adjust the preset pressure value according to the required firepower, and with the cooperation of the pressure relay 21 and the PLC controller, the pressure value inside the fuel tank 11 will always remain at the preset pressure value, thereby achieving smooth control of the firepower.

[0028] Furthermore, a check valve 13 is provided between the air intake pipe 121 and the fuel tank 11 to prevent the gas delivered by the driving air pump 3 to the air intake pipe 121 from flowing back.

[0029] Furthermore, in addition to ignition, the ignition device 4 can also adjust the firepower. The ignition device 4 can adopt a manual knob smooth adjustment method, the firepower can be adjusted steplessly, and the adjustment range is wide.

[0030] Furthermore, the fuel tank 11 can be packaged in a steel cylinder, and the appearance and volume of the steel cylinder are similar to those of a traditional liquefied gas cylinder, which is convenient for safe transportation and use. The material of the steel cylinder body can be calm or stainless steel, produced in accordance with relevant national standards, the design pressure of the steel cylinder is 0.8MPa, the design service life of the steel cylinder body is 15 years, and a quick interface is used. The actual working pressure in the fuel cylinder is less than 0.15MPa, which is safer for transportation and use.

[0031] In one embodiment, Figure 3 As shown, a switch valve 10 is provided between the liquid outlet pipe 122 and the burner 5. When not in use, the communication between the fuel tank 11 and the burner 5 can be closed by the switch valve 10.

[0032] In one embodiment, Figure 1 As shown, a panel 1 is provided on the top of the housing 8, and the cooker 6 is installed on the panel 1. The panel 1 is provided to facilitate the installation of the cooker 6 and the placement of pots.

[0033] In one embodiment, Figure 1 or Figure 2 As shown, a pot rack 7 is provided on the stove 6, and the pot rack 7 is located outside the burner 5. A burner nozzle is provided in the burner 5, and a pot rack 7 is provided in the burner 5, so that the pot is placed on the pot rack 7, leaving a distance between the pot rack and the burner nozzle, which is convenient for the combustion of methanol liquid fuel.

[0034] In one embodiment, Figure 1 As shown, a supporting foot 9 is provided at the bottom of the housing 8 to enhance the stability of the housing 8.

[0035] In one embodiment, an integrated battery is provided in the control device 2, and a mobile power interface is also provided on the control device 2. The control device 2 can be powered by a rechargeable integrated battery or by an external power supply connected to the mobile power interface. Two power supply modes are provided for user convenience.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-contained pressure-feeding methanol fuel stove, characterized in that: It comprises a housing (8), a stove (6), a fuel tank (11), a balance pipe (12), an ignition device (4), a control device (2) and a driving air pump (3); The stove (6) is arranged on the top of the housing (8), and a burner (5) is provided on the stove (6); The balance pipe (12) comprises an air intake pipe (121) and a liquid outlet pipe (122); the air intake end of the air intake pipe (121) is connected to the driving air pump (3); the air outlet end of the air intake pipe (121) is connected to the inner top of the fuel tank (11); the liquid intake end of the liquid outlet pipe (122) is connected to the inner bottom of the fuel tank (11); the liquid outlet end of the liquid outlet pipe (122) is connected to the burner (5); and a check valve (13) is provided between the air intake pipe (121) and the fuel tank (11); The ignition device (4) is arranged on the housing (8), and the ignition device (4) is located on the liquid outlet pipe (122) between the fuel tank (11) and the burner (5); The control device (2) and the driving air pump (3) are arranged on one side of the housing (8), and the driving air pump (3) is electrically connected to the control device (2); The control device (2) comprises a PLC controller, a pressure relay (21) and a temperature sensor. The pressure relay (21) is arranged on the air intake pipe (121), and the pressure relay (21) is located between the fuel tank (11) and the check valve (13), and is used to detect the pressure in the fuel tank (11). The temperature sensor is arranged on the stove (6), and is used to detect the temperature of the burner (5).

2. The self-contained pressure-feeding methanol fuel stove according to claim 1 is characterized in that: An on-off valve (10) is provided between the liquid outlet pipe (122) and the burner (5).

3. The self-contained pressure-feeding methanol fuel stove according to claim 1 is characterized in that: A panel (1) is provided on the top of the housing (8), and the stove (6) is mounted on the panel (1).

4. The self-contained pressure-feeding methanol fuel stove according to claim 1, characterized in that: The stove (6) is provided with a pot rack (7), and the pot rack (7) is located outside the burner (5).

5. The self-contained pressure-feeding methanol fuel stove according to claim 1 is characterized in that: The bottom of the shell (8) is provided with supporting feet (9).

6. The self-contained pressure-feeding methanol fuel stove according to claim 1, characterized in that: An integrated battery is provided in the control device (2), and a mobile power supply interface is also provided on the control device (2).

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