CN219036785U - Methanol warmer - Google Patents

Abstract

The utility model discloses a methanol warmer, which relates to the technical field of warmers and comprises the following components: the fuel tank, the catalytic burner and the starting heater; the catalytic combustor comprises a combustion cylinder, a blower and a first peristaltic pump, wherein a catalyst carrier is arranged in the combustion cylinder, one end of the catalyst carrier is connected with an air inlet of the combustion cylinder, a methanol combustion catalyst is attached in the catalyst carrier, an air outlet of the blower is connected with the air inlet of the combustion cylinder, and an oil inlet pipe and an oil outlet pipe of the first peristaltic pump are respectively connected with an oil tank and an air inlet pipe; the starting heater comprises a second peristaltic pump and an igniter, and an oil inlet pipe and an oil outlet pipe of the second peristaltic pump are respectively connected with the oil tank and the inner bottoms of the combustion cylinders. The starting heater directly burns methanol to heat the catalyst carrier, and can be started rapidly in a low-temperature environment; the methanol vapor and the oxygen are catalytically combusted on the methanol combustion catalyst, so that the catalyst has no open flame, is safer and has high combustion efficiency, and the tail gas is combusted by the starting heater to remove the methanol in the tail gas.

Description

Methanol warmer

Technical Field

The utility model relates to the technical field of heaters, in particular to a methanol heater for heating.

Background

In recent years, a plurality of novel clean heating technologies such as a methanol wall-mounted furnace, a light alcohol complementation, a gas air source heat pump, low-temperature nuclear heat supply and the like are developed, and methanol has the characteristics of high efficiency, cleanliness, low carbon, greenness and the like, becomes a clean fuel for heating, and is gradually popularized and used in various places. Especially in rural areas, factories and small business areas.

The Chinese patent with the patent number of 201920454488.3 discloses a novel methanol catalytic combustion furnace, which comprises an external water tank, wherein a gas-liquid mixing chamber and a catalytic combustion chamber are arranged in the external water tank, the gas-liquid mixing chamber is arranged at the lower part of the catalytic combustion chamber, the lower part of the gas-liquid mixing chamber is connected with an external air inlet, and the upper part of the catalytic combustion chamber is provided with a flue gas outlet; the catalytic combustion chamber has perovskite catalytic combustion particles therein. However, the perovskite type catalytic combustion particles have high ignition temperature, catalytic combustion cannot be started in a low-temperature environment, and the catalytic combustion chamber is cooled by the cold water of the external water tank, so that the methanol catalytic combustion furnace is difficult to use under cold winter conditions.

The utility model patent No. 20161098900. X discloses a methanol gasification or catalytic combustion device, which comprises a methanol catalytic starting chamber, a methanol gasification chamber and a methanol catalytic combustion chamber, wherein the middle part of the methanol catalytic combustion chamber is filled with a combustion catalyst, and the middle part of the methanol catalytic starting chamber is filled with a combustion or oxidation catalyst which can realize liquid methanol catalytic combustion at normal temperature and has a particle and integral honeycomb structure. The patent realizes the starting of the catalytic combustion device at normal temperature through the methanol catalytic starting chamber, however, the catalytic combustion device is difficult to start at low temperature, such as in an environment below zero, and in addition, the methanol catalytic combustion chamber is difficult to fully combust methanol, so that the content of methanol in the discharged tail gas is high.

The utility model patent No. 202210734591.X discloses a methanol flameless combustion warm air system integrating wind, hot water and heat, which comprises a flameless combustion device, a wind-heat device and a water-heat device, wherein a heater and a reactor are arranged in the flameless combustion device, the reactor heats a catalyst in the reactor, when the temperature reaches 60 ℃, a water pump in a fuel tank starts to blow methanol into the reactor, hot gas is generated through catalytic reaction of the methanol, then the hot gas diffuses and exchanges heat to external air through a radiator to form hot air, and meanwhile, a cooling fan blows the hot air, and in the process, the heat of the hot air is blown into the air through a fan on a cooling fin to form warm air. Therefore, the patent can realize flameless combustion of methanol and oxygen on the catalyst, and the released heat is used for heating after the heat exchange of the air heating device and the water heating device. However, this patent is not a detailed description of the structure of the flameless combustion device.

In view of the above, there is a need to develop a methanol warmer which is started quickly, is suitable for a low-temperature environment, is highly efficient, and has a low methanol content in the tail gas.

Disclosure of Invention

The utility model aims to provide a methanol warmer which is quick to start, is applicable to a low-temperature environment, is high in efficiency and is low in tail gas methanol content, so that the technical problems that the combustion efficiency of the methanol warmer is low and the methanol warmer cannot be started at a low temperature are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a methanol warmer, comprising:

comprises an oil tank, a catalytic burner and a starting heater;

the catalytic combustor comprises a combustion cylinder, a blower and a first peristaltic pump, wherein at least one catalyst carrier is arranged in the combustion cylinder, an air inlet and an air outlet are formed in the combustion cylinder, one end of the catalyst carrier is connected with the air inlet of the combustion cylinder, a plurality of hollow flow passages are formed in the catalyst carrier, the hollow flow passages extend from one end of the catalyst carrier to the other end of the catalyst carrier, methanol combustion catalysts are adhered to the hollow flow passages, the air outlet of the blower is connected with the air inlet of the combustion cylinder through an air inlet pipe, an oil inlet pipe of the first peristaltic pump is connected with an oil tank, an oil outlet pipe of the first peristaltic pump is spirally wound on the outer wall of the catalyst carrier, and the tail end of the oil outlet pipe of the first peristaltic pump is inserted into the air inlet pipe;

the starting heater comprises a second peristaltic pump and an igniter, an oil inlet pipe of the second peristaltic pump is connected with the oil tank, the tail end of an oil outlet pipe of the second peristaltic pump is inserted into the inner bottom of the combustion cylinder, and an ignition end of the igniter is inserted into the inner bottom of the combustion cylinder and is adjacent to the tail end of the oil outlet pipe of the second peristaltic pump.

Through adopting above-mentioned technical scheme, when the low temperature starts, the starter heater uses methyl alcohol direct combustion, heats catalyst carrier, and the efficiency of burning heating is high, starts soon, can start under low temperature environment.

When the temperature of the catalyst carrier reaches above 100 ℃, the catalytic burner can be started to work, firstly, the air blower and the first peristaltic pump are started to input air and methanol into the catalyst carrier, as the oil outlet pipe of the first peristaltic pump is wound on the outer wall of the catalyst carrier, the methanol in the oil outlet pipe of the first peristaltic pump is directly vaporized by the heat of starting the heater combustion, the vaporized methanol vapor is input into the catalyst carrier, the methanol vapor and oxygen are catalytically combusted on the methanol combustion catalyst to release heat, when the tail gas contains unreacted methanol, the methanol vapor can be burnt by the flame of the starting heater to remove the methanol in the tail gas when the heater is started, and then the high-temperature tail gas is output outwards from the air outlet on the combustion cylinder, so that the heating effect is realized.

Preferably, the catalytic burner is further arranged in the shell along the horizontal direction, a flat plate is fixed in the shell along the horizontal direction and positioned on the upper side of the catalytic burner, a warm air flow channel is formed between the upper surface of the flat plate and the shell, cold air inlets and warm air outlets are respectively arranged at positions corresponding to two ends of the warm air flow channel on two sides of the shell, a fan is arranged at one end, close to the cold air inlets, in the warm air flow channel, an air outlet of the fan faces the warm air outlets, an exhaust pipe is connected in the air outlet of the combustion cylinder, and the upper end of the exhaust pipe penetrates through the flat plate and stretches into the warm air flow channel.

Through adopting above-mentioned technical scheme, in the hot-blast input warm air runner that produces in the catalytic combustor, because hot-blast high temperature is unsuitable direct discharge, in the warm air runner the fan of installation can blow the cold wind to the warm air runner in, with hot-blast mixing formation warm braw, according to the warm braw temperature of predetermineeing, the rotational speed of adjusting the fan for the warm braw of blowing out reaches the default temperature.

Preferably, the electric fan comprises a shell, a control circuit board, a blower, a first peristaltic pump, a second peristaltic pump, an igniter and a fan, wherein the control circuit board is embedded in the side wall of the shell, the blower, the first peristaltic pump, the second peristaltic pump, the igniter and the fan are connected with the control circuit board.

By adopting the technical scheme, the control circuit board controls the work of each component, and the battery is used for supplying power and can continuously work for a long time in places separated from the mains supply.

Preferably, the combustion cylinder comprises a cylinder body upper part and a cylinder body lower part, the cylinder body upper part and the cylinder body lower part are connected or welded through rivets, a cavity is formed in the cylinder body upper part and the cylinder body lower part, and the at least one catalyst carrier is arranged in the cavity along the horizontal direction.

By adopting the technical scheme, the upper part of the cylinder body and the lower part of the cylinder body can be disassembled, so that the catalyst carrier can be conveniently installed.

Preferably, the catalyst carrier also comprises an end plate, wherein the end plate is fixed in the upper part of the cylinder body, the end plate is provided with a circular port, and one end of the catalyst carrier, which is far away from the air inlet of the combustion cylinder, is inserted into the circular port.

By adopting the technical scheme, the end plate plays a role in supporting the catalyst carrier, so that the catalyst carrier is convenient to install in the combustion cylinder.

Preferably, one end, close to the catalyst carrier, of the air inlet pipe is plugged with a cylindrical flame retardant body, the flame retardant body is made of ceramic, a plurality of hollow flow passages are arranged in the flame retardant body, and gaps are reserved between the flame retardant body and the catalyst carrier.

By adopting the technical scheme, during normal operation, the combustion temperature of one end of the catalyst carrier, which is close to the flame retardant body, is very high, and when the methanol vapor reaches the catalyst carrier, the temperature reaches the ignition point of the methanol vapor, so that the methanol is directly burnt by open flame and cannot enter the catalyst carrier; the flame retardant body can reduce the temperature of one side of the inlet of the catalyst carrier, and the space required by combustion cannot be reached due to smaller gaps, so that the direct open flame combustion of methanol at the end part of the catalyst carrier can be avoided.

Preferably, the material of the catalyst carrier is metal.

Through adopting above-mentioned technical scheme, metal material heat conductivity is good, and at the start-up stage, the open flame burning of start-up heater can be fast with catalyst carrier heating, reduces the start-up time.

Compared with the related art, the methanol warmer provided by the utility model has the following beneficial effects:

1. according to the utility model, the starting heater is started firstly in the starting stage, the catalyst carrier is heated by directly burning methanol, and meanwhile, the oil outlet pipe of the first peristaltic pump wound on the outer wall of the catalyst carrier is heated, so that the catalyst can be started in a low-temperature environment, and the starting speed is high.

2. The first peristaltic pump inputs the methanol into the catalyst carrier through the oil outlet pipe, the methanol is vaporized in the high-temperature oil outlet pipe to become high-temperature methanol vapor, and the reaction efficiency of the high-temperature methanol vapor in the catalyst carrier is high; the methanol vapor and the oxygen are catalytically combusted on the methanol combustion catalyst in the catalyst carrier, so that open flame is avoided, the safety is improved, and the combustion efficiency is high.

3. The tail gas after the reaction of the methanol vapor and the oxygen in the catalyst carrier is burnt by the combustion flame of the starting heater, the unreacted methanol vapor is prevented from being discharged into a room after the starting stage, the temperature of the catalyst carrier can reach about 500 ℃ after the catalyst carrier is operated for a period of time, the catalytic efficiency of the methanol combustion catalyst is very high, and the methanol input into the catalyst carrier can be completely catalyzed and burnt, so that the starting heater can be turned off.

4. In order to control the temperature of the warm air input by the methanol warmer, a heating channel is arranged in the shell, the high-temperature hot air generated by the catalytic burner is input into the heating air channel, in order to reduce the temperature of the high-temperature hot air and reach the temperature suitable for discharge, a fan is arranged in the heating air channel, cold air blown by the fan is mixed with the high-temperature hot air to form warm air suitable for heating, and the effect of intelligently adjusting the temperature of the discharged warm air is realized.

5. The catalyst carrier is made of metal, the heat conductivity is high, the catalyst carrier can be quickly heated by starting the combustion of the heater, and the starting time is short.

6. The methanol heating stove is powered by a battery, does not depend on commercial power, and can work outdoors.

Drawings

FIG. 1 is a perspective view of a methanol warmer;

FIG. 2 is a side view of the methanol warmer;

FIG. 3 is a cross-sectional view taken along the direction B-B in FIG. 2;

FIG. 4 is a perspective view of a catalytic burner and a start-up heater;

FIG. 5 is a second perspective view of a catalytic burner and a start-up heater;

FIG. 6 is a side view of a catalytic combustor;

FIG. 7 is a cross-sectional view taken along the direction C-C in FIG. 6;

FIG. 8 is a perspective view of the lower portion of the cylinder and the catalyst carrier;

fig. 9 is a perspective view of the upper part of the cylinder and the catalyst carrier.

Reference numerals: 1. an oil tank; 2. a catalytic burner; 21. a combustion cylinder; 213. an exhaust pipe; 214. the upper part of the cylinder body; 215. the lower part of the cylinder body; 216. an end plate; 22. a blower; 221. an air inlet pipe; 23. a first peristaltic pump; 24. a catalyst carrier; 3. starting a heater; 31. a second peristaltic pump; 32. an igniter; 4. a housing; 41. a flat plate; 42. a warm air flow passage; 43. a cool air inlet; 44. a warm air outlet; 45. a fan; 46. a heat radiation port; 5. a battery; 6. a control circuit board; 7. flame retardant.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," and the like, refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model

Furthermore, it should be noted that, in the description of the present utility model, the terms "mounted," "disposed," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, the connection can be fixed connection, detachable connection or integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1 to 3, the embodiment of the utility model provides a methanol warmer, which comprises a housing 4, an oil tank 1, a catalytic burner 2 and a start heater 3, wherein an alcohol fuel, such as methanol or ethanol, is contained in the oil tank 1 as a heating source, and methanol is used as the fuel in the embodiment.

As shown in fig. 3, 6 and 7, the catalytic combustor 2 comprises a combustion cylinder 21, at least one catalyst carrier 24, a blower 22 and a first peristaltic pump 23, wherein the combustion cylinder 21 is internally provided with a cavity, the at least one catalyst carrier 24 is arranged at the upper side in the cavity along the horizontal direction, and the number of the catalyst carriers 24 is reasonably selected according to the required thermal power of the methanol warmer. The side surface of one end of the combustion cylinder 21 is provided with an air inlet, the top of the combustion cylinder 21 is provided with an air outlet, the air inlet is used for inputting air, and the air outlet is used for outputting high-temperature hot air. One end of the catalyst carrier 24 is connected with the air inlet of the combustion cylinder 21, the blower 22 is positioned outside the combustion cylinder 21 and is used for blowing air into the catalyst carrier 24, and the air outlet of the blower 22 is connected with the air inlet of the combustion cylinder 21 through the air inlet pipe 221 and is used for inputting air into the catalyst carrier 24.

The catalyst carrier 24 is made of metal, preferably stainless steel, a plurality of hollow flow passages are formed in the catalyst carrier 24, the hollow flow passages extend from one end of the catalyst carrier 24 to the other end, methanol combustion catalysts are adhered to the hollow flow passages, and the methanol combustion catalysts are metal catalyst particles with the mass fraction of 1% supported by Al2O3 spheres; al2O3 balls are spherical star structures made of alumina as a matrix, and platinum elements with the mass fraction of 1% are mixed to promote the catalytic combustion of methanol.

The first peristaltic pump 23 is used for inputting methanol into the catalyst carrier 24, the first peristaltic pump 23 is provided with an oil inlet pipe and an oil outlet pipe, the oil inlet pipe of the first peristaltic pump 23 is connected with the oil tank 1, the methanol in the oil tank 1 is pumped out, the middle section of the oil outlet pipe of the first peristaltic pump 23 is spirally wound on the outer wall of the catalyst carrier 24 and can exchange heat with the catalyst carrier 24, the methanol in the oil outlet pipe flowing through the first peristaltic pump 23 is conveniently vaporized, the tail end of the oil outlet pipe of the first peristaltic pump 23 is inserted into the air inlet pipe 221, the cold air input by the air blower 22 blows the methanol vapor into the catalyst carrier 24, the methanol vapor and the oxygen undergo catalytic combustion reaction on the methanol combustion catalyst, a large amount of heat is released, the tail gas flows downwards to the lower side in the cavity of the combustion cylinder 21, when the tail gas contains unreacted methanol, the tail gas passes through the starting heater 3, the methanol vapor is burnt by the flame of the starting heater 3, the methanol in the tail gas can be removed, then the high temperature hot air is output outwards from the air outlet on the combustion cylinder 21, and the heating effect is realized

As shown in fig. 4 and 5, the start-up heater 3 includes a second peristaltic pump 31 and an igniter 32, the second peristaltic pump 31 has an oil inlet pipe and an oil outlet pipe, the oil inlet pipe of the second peristaltic pump 31 is connected with the oil tank 1, the end of the oil outlet pipe of the second peristaltic pump 31 is inserted into the inner bottom of the combustion cylinder 21, the ignition end of the igniter 32 is inserted into the inner bottom of the combustion cylinder 21 and is adjacent to the end of the oil outlet pipe of the second peristaltic pump 31, the second peristaltic pump 31 and the igniter 32 are started, the igniter 32 ignites the methanol output by the second peristaltic pump 31, the burning flame is used for heating the catalyst carrier 24, the burning flame can be started quickly in a low-temperature environment, and the methanol in the tail gas which is not completely catalyzed and burnt by the catalyst carrier 24 can be burned.

The foregoing is merely a preferred embodiment of the present utility model, and is not intended to limit the embodiments and the protection scope of the present utility model.

The present utility model has the following embodiments based on the above description:

further, as shown in fig. 1 to 3, the casing 4 is in a rectangular box structure, the catalytic combustor 2 is installed in the middle of the casing 4 along the horizontal direction, the first peristaltic pump 23 and the second peristaltic pump 31 are installed at the bottom of the casing 4, the flat plate 41 is fixed in the casing 4 along the horizontal direction, the flat plate 41 is located at the upper side of the catalytic combustor 2, a warm air runner 42 in the horizontal direction is formed between the upper surface of the flat plate 41 and the casing 4, cold air inlets 43 and warm air outlets 44 are respectively arranged at positions corresponding to two ends of the warm air runner 42 on the left side and the right side of the casing 4, the cold air inlets 43 are located at inlet ends of the warm air runner 42, and the warm air outlets 44 are located at outlet ends of the warm air runner 42. The air outlet of the combustion cylinder 21 is vertically connected with an exhaust pipe 213, and the upper end of the exhaust pipe 213 penetrates through the flat plate 41 and extends into the warm air flow path 42. The high-temperature hot air generated by the catalytic combustor 2 is input into the warm air flow path 42 from the exhaust pipe 213, and is not suitable for direct exhaust because the temperature of the hot air is too high to avoid scalding the human body, so that a fan 45 is installed at one end of the warm air flow path 42 close to the cold air inlet 43, the air outlet of the fan 45 faces the warm air outlet 44, the fan 45 blows cold air outside the shell 4 into the warm air flow path 42 and is mixed with the low-temperature warm air, and the low-temperature warm air is formed for heating. According to the preset warm air temperature, the rotation speed of the fan 45 is adjusted so that the blown warm air reaches the preset temperature.

In addition, a battery 5 is installed at the inner bottom of the shell 4, the battery 5 adopts a lithium battery 5, a control circuit board 6 is embedded in the side wall of the shell 4, the battery 5 is in circuit connection with the control circuit board 6 and is used for supplying power to all power utilization components in the shell 4, and a blower 22, a first peristaltic pump 23, a second peristaltic pump 31, an igniter 32 and a fan 45 are all in circuit connection with the control circuit board 6 and are controlled to work through the control circuit board 6, so that intelligent regulation and control are realized.

As shown in fig. 8 and 9, the combustion cylinder 21 includes a cylinder upper portion 214 and a cylinder lower portion 215, the cylinder upper portion 214 has a substantially "︶" shape in longitudinal section, and the cylinder lower portion 215 has a substantially "︶" shape in longitudinal section, and the cylinder upper portion 214 is disposed on top of the cylinder lower portion 215 so as to define a cavity therebetween.

In order to support the catalyst carrier 24 conveniently, an end plate 216 is fixed in the upper part 214 of the cylinder body, the outer edge of the end plate 216 is attached to the inner wall of the upper part 214 of the cylinder body, the end plate 216 divides the upper part 214 of the cylinder body into a left part and a right part, a circular opening is formed in the end plate 216, the diameter of the circular opening is the same as that of the catalyst carrier 24, one end of the catalyst carrier 24, which is far away from the air inlet of the combustion cylinder 21, is inserted into the circular opening, the catalyst carrier 24 is welded with the circular opening, and thus the catalyst carrier 24 is fixed between the circular opening and the air inlet of the combustion cylinder 21 along the horizontal direction.

As shown in fig. 7 and 8, when methanol and oxygen are flamelessly combusted in the catalyst carrier 24 for a period of time and then the temperature of the catalyst carrier 24 may reach about 500 ℃, and methanol vapor is fed from the air inlet pipe 221 to the end of the catalyst carrier 24, the methanol vapor is directly burned in open flame at the end of the catalyst carrier 24 due to the high Wen Chaoguo ignition point of the methanol vapor of the catalyst carrier 24, and cannot be fed into the catalyst carrier 24. To solve this problem, a cylindrical flame retardant body 7 is plugged into one end of the air inlet pipe 221 near the catalyst carrier 24, the material of the flame retardant body 7 is ceramic with poor thermal conductivity, a plurality of hollow flow channels are arranged in the flame retardant body 7, and a gap is formed between the flame retardant body 7 and the catalyst carrier 24 for passing through methanol vapor and air, the temperature of one side of the end of the catalyst carrier 24 can be reduced by the flame retardant body 7, the space required by combustion cannot be reached due to the smaller gap, and direct open flame combustion of methanol at the end of the catalyst carrier 24 can be avoided.

Further, as shown in fig. 1, in order to avoid overheating inside the casing 4, a plurality of heat dissipation ports 46 are provided on the casing 4, so that air inside and outside the casing 4 can flow through each other, and the battery 5, the first peristaltic pump 23, the second peristaltic pump 31 and the blower 22 inside the casing 4 are effectively protected. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a methyl alcohol room heater, includes oil tank (1), its characterized in that: the device also comprises a catalytic combustor (2) and a starting heater (3);

the catalytic combustor (2) comprises a combustion cylinder (21), a blower (22) and a first peristaltic pump (23), wherein at least one catalyst carrier (24) is arranged in the combustion cylinder (21), an air inlet and an air outlet are formed in the combustion cylinder (21), one end of the catalyst carrier (24) is connected with the air inlet of the combustion cylinder (21), a plurality of hollow flow channels are formed in the catalyst carrier (24), methanol combustion catalysts are adhered to the hollow flow channels, the air outlet of the blower (22) is connected with the air inlet of the combustion cylinder (21) through an air inlet pipe (221), an oil inlet pipe of the first peristaltic pump (23) is connected with an oil tank (1), an oil outlet pipe of the first peristaltic pump (23) spirally winds on the outer wall of the catalyst carrier (24), and the tail end of the oil outlet pipe of the first peristaltic pump (23) is inserted into the air inlet pipe (221).

The starting heater (3) comprises a second peristaltic pump (31) and an igniter (32), an oil inlet pipe of the second peristaltic pump (31) is connected with the oil tank (1), the tail end of an oil outlet pipe of the second peristaltic pump (31) is inserted into the inner bottom of the combustion cylinder (21), and the ignition end of the igniter (32) is inserted into the inner bottom of the combustion cylinder (21) and is adjacent to the tail end of the oil outlet pipe of the second peristaltic pump (31).

2. The methanol warmer of claim 1, further comprising a rectangular housing (4), wherein the catalytic burner (2) is mounted in the housing (4) along a horizontal direction, a flat plate (41) is fixed in the housing (4) along the horizontal direction, the flat plate (41) is located at an upper side of the catalytic burner (2), a warm air runner (42) is formed between an upper surface of the flat plate (41) and the housing (4), a cold air inlet (43) and a warm air outlet (44) are respectively arranged at positions corresponding to two ends of the warm air runner (42) at two sides of the housing (4), a fan (45) is mounted at one end, close to the cold air inlet (43), of the warm air runner (42), an air outlet of the fan (45) faces the warm air outlet (44), an exhaust pipe (213) is connected in the air outlet of the combustion cylinder (21), and an upper end of the exhaust pipe (213) penetrates through the flat plate (41) and stretches into the warm air runner (42).

3. The methanol warmer according to claim 2, further comprising a battery (5) and a control circuit board (6), wherein the battery (5) is disposed at an inner bottom of the housing (4), the control circuit board (6) is embedded on a side wall of the housing (4), the battery (5) is electrically connected with the control circuit board (6), and the blower (22), the first peristaltic pump (23), the second peristaltic pump (31), the igniter (32) and the fan (45) are electrically connected with the control circuit board (6).

4. The methanol warmer of claim 1, wherein the combustion cylinder (21) includes a cylinder upper portion (214) and a cylinder lower portion (215), the cylinder upper portion (214) and the cylinder lower portion (215) are connected or welded by rivets, the interiors of the cylinder upper portion (214) and the cylinder lower portion (215) form a cavity, and the at least one catalyst carrier (24) is installed in the cavity in a horizontal direction.

5. The methanol warmer of claim 4, further comprising an end plate (216), said end plate (216) being fixed inside the upper cylinder portion (214), said end plate (216) having a circular opening therein, said end of the catalyst carrier (24) remote from the air intake of the combustion cylinder (21) being inserted into the circular opening.

6. The methanol warmer according to claim 1, wherein one end of the air inlet pipe (221) close to the catalyst carrier (24) is plugged with a cylindrical flame retardant body (7), the flame retardant body (7) is made of ceramic, a plurality of hollow flow channels are arranged in the flame retardant body (7), and gaps are formed between the flame retardant body (7) and the catalyst carrier (24).

7. The methanol warmer of claim 1, wherein the catalyst carrier (24) is made of metal.

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