Methanol flame combustion tail gas treatment device

Abstract

The utility model discloses a methanol flame combustion tail gas treatment device which comprises a shell, a gas inlet shell is fixedly connected to the bottom end of the shell, a plurality of through holes are formed in the middle of the bottom wall of the shell, the gas inlet shell is communicated with the shell through the through holes, and a reforming catalyst chamber is fixed to the middle of the interior of the shell. A tail gas treatment unit is arranged between the outer side wall of the reforming catalytic chamber and the inner wall of the shell, and a combustion chamber is arranged at the bottom end in the shell and located in the reforming catalytic chamber. According to the device, the shell, the gas inlet shell, the reforming catalysis chamber, the combustion chamber, the igniter, the methanol water pipeline and the tail gas treatment unit are arranged, after methanol water is combusted in the combustion chamber, generated high-temperature tail gas can activate a catalyst, so that pollutants in the tail gas are converted by utilizing the catalyst, and the heat efficiency of the device is ensured to be maximized. According to the device, the traditional methanol flame combustion tail gas treatment is combined with a flameless combustion technology, so that the complexity of the device is simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of methanol tail gas treatment, in particular to a methanol flame combustion tail gas treatment device. Background Art

[0002] As a clean energy, methanol is increasingly used in the industrial field, especially in the process of converting methanol into hydrogen.

[0003] However, incomplete combustion often occurs during the flaming combustion of methanol, resulting in the presence of pollutants such as carbon monoxide, unreacted methanol and formaldehyde in the tail gas, which poses potential hazards to the environment and human health. Although the currently commonly used flameless combustion technology can reduce pollutant emissions, it has a complex structure and high cost. Therefore, it has become an urgent need in the art to find a tail gas treatment device that can ensure complete combustion of methanol and has a simple structure and low cost. Therefore, the utility model proposes a tail gas treatment device for flaming combustion of methanol. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a methanol flame combustion tail gas treatment device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a methanol flame combustion exhaust gas treatment device, comprising a shell, the bottom end of the shell is fixedly connected to an air intake shell, a plurality of through holes are opened in the middle of the bottom wall of the shell, and the plurality of through holes connect the air intake shell with the shell, a reforming catalyst chamber is fixed in the middle position inside the shell, an exhaust gas treatment unit is arranged between the outer wall of the reforming catalyst chamber and the inner wall of the shell, a combustion chamber is arranged at the bottom end of the shell and inside the reforming catalyst chamber, a methanol water pipeline is penetrated and fixedly connected to the side wall of the bottom end of the shell, an air inlet is opened on the side wall of the air intake shell, and an exhaust gas outlet is opened at the bottom end of the side wall of the shell.

[0006] Furthermore, a fan is installed inside the air intake shell and near the air intake port. The fan can draw air outside the air intake shell from the air intake port into the air intake shell, and then enter the shell through the through hole to provide oxygen for combustion in the combustion chamber.

[0007] Furthermore, a dustproof net is fixedly installed inside the air inlet, and the dustproof net can prevent external dust from entering the air inlet shell from the air inlet.

[0008] Furthermore, one end of the methanol water pipeline located in the shell passes through the side wall of the reforming catalyst chamber and extends to the top of the combustion chamber. Therefore, methanol water can be added into the combustion chamber through the methanol water pipeline.

[0009] Furthermore, a plurality of through holes are located inside the reforming catalyst chamber, the top of the reforming catalyst chamber is open, and an igniter is fixedly installed on the side wall of the combustion chamber. The methanol water inside the combustion chamber can be ignited by the igniter.

[0010] Furthermore, the tail gas treatment unit uses a catalyst composed of copper and platinum.

[0011] Beneficial effects of the utility model:

[0012] When the utility model is in use, the methanol flame combustion tail gas treatment device is provided with a shell, an air intake shell, a reforming catalyst chamber, a combustion chamber, an igniter, a methanol water pipeline and a tail gas treatment unit. After the methanol water is burned in the combustion chamber, the high-temperature tail gas generated can activate the catalyst, so that the catalyst is used to convert the pollutants in the tail gas, thereby ensuring that the thermal efficiency of the device is maximized. The device combines the traditional methanol flame combustion tail gas treatment with the flameless combustion technology, simplifies the complexity of the device, and reduces the cost. The optimized catalyst can effectively convert the pollutants in the tail gas to meet the environmental emission standards. The tail gas heat is fully utilized, no additional thermal energy support is required, and energy consumption is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 : The overall stereogram of the utility model;

[0015] Figure 2 : An overall cross-sectional view of the utility model;

[0016] Figure 3 :The utility model Figure 2 Enlarged view of point A in the middle.

[0017] The reference numerals are as follows:

[0018] 1. Shell; 2. Air intake shell; 3. Through hole; 4. Reforming catalyst chamber; 5. Combustion chamber; 6. Ignitor; 7. Methanol water pipeline; 8. Exhaust gas treatment unit; 9. Air inlet; 10. Exhaust gas outlet; 11. Fan; 12. Dust screen. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-Figure 3 As shown, it relates to a methanol flame combustion exhaust gas treatment device, including a shell 1, an air intake shell 2 is fixedly connected to the bottom end of the shell 1, a plurality of through holes 3 are opened in the middle of the bottom wall of the shell 1, and the plurality of through holes 3 connect the air intake shell 2 with the shell 1, a reforming catalyst chamber 4 is fixed at the middle position inside the shell 1, an exhaust gas treatment unit 8 is arranged between the outer wall of the reforming catalyst chamber 4 and the inner wall of the shell 1, a combustion chamber 5 is arranged at the bottom end of the shell 1 and inside the reforming catalyst chamber 4, a methanol water pipeline 7 is penetrated and fixedly connected to the side wall of the bottom end of the shell 1, an air inlet 9 is opened on the side wall of the air intake shell 2, and an exhaust gas outlet 10 is opened at the bottom end of the side wall of the shell 1.

[0021] like Figure 2 As shown, a fan 11 is installed inside the air inlet shell 2 and near the air inlet 9.

[0022] External air can enter the air intake shell 2 from the air inlet 9 , and the air flow can be accelerated by starting the fan 11 , so that the air can pass through the through hole 3 into the reforming catalyst chamber 4 , providing oxygen for the combustion of the combustion chamber 5 .

[0023] like Figure 1 As shown, a dustproof net 12 is fixedly installed inside the air inlet 9.

[0024] When external air enters the air inlet shell 2 from the air inlet 9, the dustproof net 12 can prevent external dust from entering the air inlet shell 2. In this embodiment, the dustproof net 12 is fixed to the air inlet 9 by bolts, so that when the surface of the dustproof net 12 is covered with dust and affects the air intake, the dustproof net 12 can be removed and cleaned.

[0025] like Figure 2 and Figure 3 As shown, one end of the methanol water pipeline 7 located in the shell 1 passes through the side wall of the reforming catalyst chamber 4 and extends to above the combustion chamber 5.

[0026] Methanol water can enter the combustion chamber 5 along the methanol water pipeline 7.

[0027] like Figure 1-Figure 3 As shown, a plurality of through holes 3 are located inside the reforming catalyst chamber 4 , the top of the reforming catalyst chamber 4 is open in design, and an igniter 6 is fixedly installed on the side wall of the combustion chamber 5 .

[0028] The methanol water inside the combustion chamber 5 can be ignited by the igniter 6, and the exhaust gas generated by the combustion can only flow upward. The exhaust gas flows from the top of the reforming catalyst chamber 4 to the exhaust gas treatment unit 8 and will not be directly discharged from the exhaust gas outlet 10.

[0029] The tail gas treatment unit 8 uses a catalyst composed of copper and platinum. The catalyst is composed of copper, platinum and other auxiliary components, which can effectively promote the catalytic oxidation of residual carbon monoxide and methanol in the tail gas and convert them into harmless carbon dioxide and water.

[0030] Working principle: methanol water is added to the combustion chamber 5 through the methanol water pipeline 7, and then the fan 11 is started to allow external air to enter the air intake shell 2 from the air inlet 9, and then the air comes to the top of the combustion chamber 5 along the through hole 3. At this time, the igniter 6 ignites the methanol water in the combustion chamber 5, and the burned exhaust gas is discharged from the top of the reforming catalyst chamber 4 into the exhaust gas treatment unit 8. Since the exhaust gas treatment unit 8 is connected to the top of the combustion chamber 5, when the high-temperature exhaust gas generated in the combustion chamber 5 directly enters the exhaust gas treatment unit 8, the residual heat is used to activate the catalyst in the exhaust gas treatment unit 8, so as to achieve rapid conversion of pollutants, thereby ensuring that the thermal efficiency of the device is maximized.

[0031] This device is a new type of exhaust gas treatment device that combines the simplicity of flame combustion technology with the environmental friendliness of flameless combustion technology; optimizes the ratio and structure of the catalyst to achieve efficient catalytic conversion of harmful components in the exhaust gas; and utilizes the residual heat in the exhaust gas treatment unit to activate the catalyst and improve the thermal efficiency.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A methanol flame combustion tail gas treatment device, comprising a housing (1), characterized in that: The bottom end of the shell (1) is fixedly connected to an intake shell (2), a plurality of through holes (3) are provided in the middle of the bottom wall of the shell (1), and the plurality of through holes (3) connect the intake shell (2) with the shell (1), a reforming catalyst chamber (4) is fixed in the middle position inside the shell (1), an exhaust gas treatment unit (8) is provided between the outer wall of the reforming catalyst chamber (4) and the inner wall of the shell (1), a combustion chamber (5) is provided at the bottom end of the shell (1) and inside the reforming catalyst chamber (4), a methanol water pipeline (7) is penetrated and fixedly connected to the side wall of the bottom end of the shell (1), an air inlet (9) is provided on the side wall of the intake shell (2), and an exhaust gas outlet (10) is provided at the bottom end of the side wall of the shell (1).

2. A methanol flame combustion tail gas treatment device according to claim 1, characterized in that: A fan (11) is installed inside the air inlet shell (2) and near the air inlet (9).

3. A methanol flame combustion tail gas treatment device according to claim 1, characterized in that: A dustproof net (12) is fixedly installed inside the air inlet (9).

4. A methanol flame combustion tail gas treatment device according to claim 1, characterized in that: One end of the methanol water pipeline (7) located in the shell (1) passes through the side wall of the reforming catalyst chamber (4) and extends to the top of the combustion chamber (5).

5. The methanol flame combustion tail gas treatment device according to claim 1, characterized in that: The plurality of through holes (3) are located inside the reforming catalyst chamber (4), the top of the reforming catalyst chamber (4) is open, and an igniter (6) is fixedly mounted on the side wall of the combustion chamber (5).

6. A methanol flame combustion tail gas treatment device according to claim 1, characterized in that: The tail gas treatment unit (8) uses a catalyst composed of copper and platinum.

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