The gasification burner head of a methanol burner and its usage method

Abstract

A gasification furnace head for a methanol burner, comprising a gasification chamber and a heat preservation sleeve arranged below the gasification chamber, a liquid inlet groove recessed into the gasification chamber is arranged at the bottom of the gasification chamber, a gasification chamber is formed between the liquid inlet groove and the inner wall of the gasification chamber, and a liquid inlet hole communicating with the gasification chamber is arranged at the top of the liquid inlet groove; a plurality of capillary gas outlet pipes are connected to the bottom of the gasification chamber, and the lower ends of the capillary gas outlet pipes penetrate the sleeve wall of the heat preservation sleeve and communicate with the combustion chamber of the methanol burner; a pipe connection channel is arranged in the middle of the heat preservation sleeve to facilitate the methanol fuel inlet pipe to penetrate the heat preservation sleeve and connect with the liquid inlet groove. The invention is safe and reliable, and has a simple method of use. It not only has fast feeding and high thermal efficiency, but also improves the speed of fire adjustment, and also has full combustion and no carbon deposits.

Description

Technical Field

[0001] The invention relates to the technical field of gasification furnaces, in particular to a gasification furnace head of a methanol burner, and also to a method for using the gasification furnace head. Background Art

[0002] The alcohol-based clean fuels advocated by the country have been widely promoted and used because of their energy saving, safety and environmental protection, such as methanol and ethanol gasoline. However, due to the decline in the price of liquefied gas in recent years, this technology has encountered a technical bottleneck, so it shares the market with liquefied gas.

[0003] At present, the technical bottlenecks of alcohol-based clean fuels, such as methanol fuel, in use are as follows:

[0004] First, atomization combustion is performed, which has slow combustion speed, incomplete combustion, unqualified waste discharge, large consumption, delayed ignition adjustment, and affects user operation;

[0005] The second is to carry out gasification combustion. Gasification combustion can burn relatively fully and save energy. It is generally divided into three types. The first is to use the furnace's own fire to heat and gasify, but it will produce a large amount of carbon deposits in a short time, making it impossible to continue using; the second is to use an aluminum ring built into the furnace for heating and gasification. The gasification method of aluminum ring, electric heating tube and built-in copper coil can save 20%-30% energy than atomization, but it has an electric energy conversion part, and it is also easy to produce carbon deposits, and the cost is relatively high, the maintenance rate is also high, and this kind of aluminum ring has a low melting point in the furnace, which is not conducive to energy saving in a closed furnace; the third is external high-power device gasification. The safety of this gas supply combustion is not guaranteed, it is more dangerous, and the cost is high, and the carbon deposit problem is not solved. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a gasification burner head of a methanol burner with reasonable design, high combustion efficiency and carbon deposit-free combustion, in view of the deficiencies in the prior art.

[0007] Another technical problem to be solved by the present invention is to provide a method for using the gasification burner head of the methanol burner.

[0008] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention is a gasification furnace head of a methanol burner, which includes a gasification bin and a heat preservation sleeve arranged below the gasification bin, a liquid inlet groove recessed into the gasification bin is provided at the bottom of the gasification bin, a gasification chamber is formed between the liquid inlet groove and the inner wall of the gasification bin, and a liquid inlet hole communicating with the gasification chamber is provided at the top of the liquid inlet groove; a plurality of capillary gas outlet pipes are connected at the bottom of the gasification chamber, and the lower ends of the capillary gas outlet pipes penetrate the sleeve wall of the heat preservation sleeve and communicate with the combustion chamber of the methanol burner; a pipe connection channel is provided in the middle of the heat preservation sleeve to facilitate the methanol fuel inlet pipe to penetrate the heat preservation sleeve and connect with the liquid inlet groove.

[0009] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the gasification burner head of the methanol burner described above, the plurality of capillary gas outlet pipes are uniformly distributed along the circumferential direction of the gasification chamber.

[0010] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the gasification burner head of the methanol burner described above, there are 4 capillary gas outlet pipes.

[0011] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the gasification burner head of the methanol burner described above, the distance between the top of the liquid inlet groove and the inner wall of the top of the gasification chamber is 2 mm, and the distance between the side part of the liquid inlet groove and the inner wall of the side part of the gasification chamber is 1 mm.

[0012] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the gasification burner head of the methanol burner described above, the distance between the gasification chamber and the heat preservation sleeve is 8 - 10 mm.

[0013] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the gasification burner head of the methanol burner described above, the liquid inlet groove is provided with internal threads for cooperating with the methanol fuel inlet pipe.

[0014] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the gasification burner head of the methanol burner described above, a heat preservation layer for heat preservation of the capillary gas outlet pipes is provided inside the heat preservation sleeve.

[0015] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the gasification burner head of the methanol burner described above, a method for using the gasification burner head of the methanol burner is as follows:

[0016] (1) Connect the methanol fuel inlet pipe into the liquid inlet groove through the connecting pipe channel, and introduce liquid methanol fuel.

[0017] (2) The liquid methanol fuel enters the gasification chamber from the liquid inlet hole on the liquid inlet groove, and is gasified into methanol gas through high pressure and high temperature.

[0018] (3) The methanol gas flows out of the gasification chamber from the capillary gas outlet pipes and enters the combustion chamber inside the methanol burner for combustion. The high temperature generated by the combustion not only supplies heat to the outside, but also heats the gasification burner head itself.

[0019] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the usage method of the gasification burner head of the methanol burner described above, the ratio of refined methanol to pure water in the methanol fuel is 2.3:1 - 3:1.

[0020] The technical problem to be solved by the present invention can also be further realized by the following technical solution. For the usage method of the gasification burner head of the methanol burner described above, the ratio of refined methanol to pure water in the methanol fuel is 3:1.

[0021] Compared with the prior art, the present invention adopts a three-stage structure. The upper gasification chamber can quickly gasify the fuel at high temperature, improving the fuel speed and efficiency; the middle capillary gas outlet pipe is exposed, which not only preheats the fuel entering the gasification chamber but also reheats the fuel in the capillary gas outlet pipe; the lower heat insulation sleeve plays a heat insulation role for the capillary gas outlet pipe, ensuring that the temperature of the fuel does not decrease during the transportation in the capillary gas outlet pipe; at the same time, the usage method of this gasification burner head is simple. When liquid methanol fuel is introduced, the effect is better. This gasification burner head is safe, reliable and easy to use. It not only has fast feeding, high thermal efficiency and fast flame adjustment speed, but also burns fully and has no carbon deposition. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural view of the present invention;

[0023] Figure 2 It is a bottom view of the structure of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Refer to Figure 1-2A gasification furnace head of a methanol burner, the gasification furnace head comprises a gasification bin 1 and an insulation sleeve 2 arranged below the gasification bin 1, a liquid inlet groove 3 recessed into the gasification bin 1 is provided at the bottom of the gasification bin 1, a gasification chamber 4 is formed between the liquid inlet groove 3 and the inner wall of the gasification bin 1, a liquid inlet hole communicated with the gasification chamber 4 is provided at the top of the liquid inlet groove 3; a plurality of capillary gas outlet pipes 5 are connected to the bottom of the gasification chamber 4, the lower ends of the capillary gas outlet pipes 5 penetrate the sleeve wall of the insulation sleeve 2 and are communicated with the combustion chamber of the methanol burner; a pipe connection channel 6 is provided in the middle of the insulation sleeve 2 for facilitating the methanol fuel inlet pipe to penetrate the insulation sleeve 2 and connect with the liquid inlet groove 3. The gasification bin 1 is used to gasify the fuel, so that the liquid fuel becomes gaseous fuel, which is easy to burn. The higher the starting temperature of the combustion, the better the combustion effect. The heat of the fuel combustion itself is used to heat the gasification bin 1, and there is no need for additional electric heating or adding a heating system. It is energy-saving and environmentally friendly. The gasification bin 1 is gasified all around, and dry burning will not occur, which greatly increases the service life of the gasification furnace head; the insulation sleeve 2 is used to insulate the outlet gas of the gasification bin 1, and the insulation sleeve 2 is connected to the gasification bin 1 through a bracket to ensure the reliability of the connection; the liquid inlet 3 is used for the safe and reliable input of methanol fuel to ensure the feeding of the gasification bin 1; the gasification chamber 4 is a small bin-type structure with a large area and a small distance, with a large inlet and a small outlet, which is convenient for Liquid fuel can be quickly vaporized at high temperature, and at the same time, the liquid turns into gas, the volume increases, and the diffusion speed is effectively improved; the capillary outlet pipe 5 is used to transport the gas in the gasification bin 1 to the outside, which is convenient for combustion; the insulation sleeve 2 is arranged in the low temperature zone, which is used to insulate the capillary outlet pipe 5 and keep the temperature of the capillary outlet pipe 5 from decreasing when it is in the low temperature zone; secondly, there is a certain distance between the gasification bin 1 and the insulation sleeve 2, and this part of the capillary outlet pipe 5 is exposed, so that this part of the capillary outlet pipe 5 can be heated during the combustion process, and then the gas in the capillary outlet pipe 5 is heated; the small bin structure adopted by the present invention solves the carbon deposition problem, reduces the combustion noise, effectively speeds up the ignition speed, and makes the combustion sufficient and odorless.

[0026] The capillary gas outlet pipes 5 are evenly distributed along the circumference of the gasification chamber 1, which facilitates uniform gas outlet from the gasification chamber 1 and maintains the required fire type and combustion stability. At the same time, in cooperation with the gasification chamber 1, the incoming fuel can be quickly gasified at high temperature.

[0027] There are four capillary outlet pipes 5. The four capillary outlet pipes 5 are welded by two flat welding and two high welding, which can not only control the initial gas output, facilitate operation, prevent excessive gas supply at the beginning, but also prevent dirt blockage, so that the dirt will be discharged from top to bottom with pressure; the inner diameter of the four capillary outlet pipes 5 is 2.8 mm, of which two capillary outlet pipes 5 are 6.8 cm long, and the other two capillary outlet pipes 5 are 7 cm long. The diameter or number of the capillary outlet pipes 5 can be adjusted as needed.

[0028] The distance between the top of the liquid inlet tank 3 and the inner wall of the top of the gasification chamber 1 is 2 mm, and the distance between the side of the liquid inlet tank 3 and the inner wall of the side of the gasification chamber 1 is 1 mm, forming a gasification chamber 4 with a large area and a small distance, which is convenient for the fuel to quickly absorb heat and gasify, improving the combustion efficiency, and realizing small flow rate and safety at the same time; Since the liquid fuel becomes gaseous, its volume increases, and coupled with the fast gasification speed, the diffusion speed is increased. Therefore, a high-power feed fan is not required before, reducing the demand for a high-power fan, saving electricity, and reducing noise.

[0029] The distance between the gasification chamber 1 and the heat preservation sleeve 2 is 8 - 10 mm. Preferably, the distance between the gasification chamber 1 and the heat preservation sleeve 2 is 8 mm, so that the capillary gas outlet pipe 5 in the middle is exposed, which is convenient for the combustion to reheat the exposed part of the capillary gas outlet pipe 5, and at the same time preheats the feed and heats the gasification chamber 1.

[0030] The liquid inlet tank 3 is provided with internal threads that cooperate with the methanol fuel inlet pipe, and the pipe orifice of the methanol fuel inlet pipe is provided with external threads that cooperate with the internal threads, which is convenient for the methanol fuel inlet pipe to be reliably connected in the liquid inlet tank 3 to prevent fuel leakage.

[0031] A heat preservation layer 7 for heat preservation of the capillary gas outlet pipe 5 is provided in the heat preservation sleeve 2. The setting of the heat preservation layer 7 enables the temperature of the capillary gas outlet pipe 5 not to decrease during the process of discharging gas outward, realizing heat preservation transfer.

[0032] A method for using the gasification furnace head of a methanol burner is as follows:

[0033] (1) Connect the methanol fuel inlet pipe into the liquid inlet tank 3 through the connection channel and introduce liquid methanol fuel;

[0034] (2) The liquid methanol fuel enters the gasification chamber 4 from the liquid inlet hole on the liquid inlet tank 3 and is gasified into methanol gas through high pressure and high temperature;

[0035] (3) The methanol gas flows out of the gasification chamber 4 from the capillary gas outlet pipe 5 and enters the combustion chamber in the methanol burner for combustion. The high temperature generated by the combustion not only heats the outside but also heats the gasification furnace head itself.

[0036] The ratio of refined methanol to pure water in the methanol fuel is 2.3:1 - 3:1; Preferably, the ratio of refined methanol to pure water in the methanol fuel is 3:1, and the ratio is by weight. The pure water participates in the combustion, so that the combustion will not produce carbon deposits, and at the same time the calorific value is increased. When the ratio of refined methanol to pure water in the methanol fuel is 3:1, the combustion is more complete, and the pure water can completely participate in the reaction to avoid the generation of carbon deposits; Generally, at 200 - 550 degrees Celsius, at high temperature, CH 3 OH→CO 2 +CH 4+H 2 , at 550 - 700 degrees Celsius, CH 3 OH → CO 2 + [C] + H 2 , above 700 degrees Celsius, CH 3 OH → CO + H 2 , it can be seen that methanol generally decomposes mainly, without pure water participating, and carbon deposition will occur. However, after adding pure water, C + H 2 O ↔ CO 2 + H 2 , CO + H 2 O ↔ CO 2 + H 2 , these two reactions are reversible reactions, and the reverse reaction will occur at low temperatures. Therefore, a certain temperature needs to be maintained throughout the process. The participation of pure water in the reaction enables the carbon deposition to further react to produce carbon dioxide and hydrogen, which can not only remove the carbon deposition but also increase the calorific value and maintain the temperature. However, the prerequisite for the above-mentioned pure water to participate in the reaction is that it needs to be at a high temperature, generally above 427 degrees Celsius. The function of the small bin structure and the capillary gas outlet pipe 5 in the present invention can enable the fuel to be quickly gasified at a high temperature, ensuring the participation of pure water in the reaction.

[0037] Through the mutual cooperation of the gasification bin 1, the capillary gas outlet pipe 5, and the heat preservation sleeve 2, the present invention enables the introduced methanol fuel to be quickly gasified at a high temperature, which cannot be achieved by the prior art. The quick high-temperature gasification of the methanol fuel ensures that the pure water in the methanol fuel can participate in the decomposition reaction of refined methanol, removing the generation of carbon deposition and increasing the calorific value.

Claims

1. A gasification burner head for a methanol burner, Features: The gasifier head comprises a gasification bin and a heat preservation sleeve arranged below the gasification bin, a liquid inlet groove recessed into the gasification bin is arranged at the bottom of the gasification bin, a gasification chamber is formed between the liquid inlet groove and the inner wall of the gasification bin, a liquid inlet hole communicating with the gasification chamber is arranged at the top of the liquid inlet groove; a plurality of capillary gas outlet pipes are connected at the bottom of the gasification chamber, the lower ends of the capillary gas outlet pipes penetrate the sleeve wall of the heat preservation sleeve and communicate with the combustion chamber of the methanol burner; a pipe connection channel is arranged in the middle of the heat preservation sleeve for facilitating the methanol fuel inlet pipe to penetrate the heat preservation sleeve and connect with the liquid inlet groove; The distance between the gasification bin and the insulation sleeve is 8-10 mm; The insulation sleeve is provided with an insulation layer for heat preservation of the capillary outlet pipe; The steps of using the gasifier burner are as follows: (1) Connect the methanol fuel inlet pipe to the liquid inlet tank through the connecting pipe channel, and introduce liquid methanol fuel; (2) Liquid methanol fuel enters the vaporization chamber from the liquid inlet hole on the liquid inlet tank and is vaporized into methanol gas under high pressure and high temperature; (3) Methanol gas flows out of the gasification chamber from the capillary outlet pipe and enters the combustion chamber of the methanol burner for combustion. The high temperature generated by the combustion not only provides heat to the outside, but also heats the gasification furnace head itself.

2. The gasification furnace head of the methanol burner according to claim 1, Features: The plurality of capillary gas outlet pipes are evenly distributed along the circumference of the gasification chamber.

3. The gasification furnace head of the methanol burner according to claim 1 or 2, Features: The capillary air outlet pipes are provided with four.

4. The gasification burner head of the methanol burner according to claim 1, Features: The distance between the top of the liquid inlet groove and the inner wall of the top of the gasification bin is 2 mm, and the distance between the side of the liquid inlet groove and the inner wall of the side of the gasification bin is 1 mm.

5. The gasification burner head of the methanol burner according to claim 1, Features: The liquid inlet groove is provided with an internal thread matched with the methanol fuel inlet pipe.

6. The gasification burner head of the methanol burner according to claim 1, Features: The ratio of refined methanol to pure water in the liquid methanol fuel is 2.3:1-3:

1.

7. The gasification burner head of the methanol burner according to claim 6, Features: The ratio of refined methanol to pure water in the liquid methanol fuel is 3:1.

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