Electro-catalysis device for formic acid production

Abstract

The utility model discloses an electro-catalysis device for formic acid production, and belongs to the technical field of formic acid production. The electro-catalysis device for formic acid production comprises an electro-catalysis box and further comprises a heating box fixedly arranged in the electro-catalysis box, a mixing box is fixedly arranged in the heating box, a heating plate is fixedly arranged at the bottom of the mixing box, and a temperature sensor is fixedly arranged in the mixing box; a material storage box is arranged in the electro-catalysis box, a first water pump is fixedly arranged in the electro-catalysis box, and the two ends of the first water pump communicate with the material storage box and the mixing box correspondingly; the mixing box is fixedly arranged in the heating box, then the heating plate used for heating the mixing box is arranged in the heating box, electrolyzed water in the mixing box can be heated, the first water pump is communicated with the storage box and the mixing box, and according to monitoring of the temperature sensor, the electrolyzed water in the mixing box can be heated. And electrolyzed water with low temperature is added into the mixing box in time, so that the temperature of the electrolyzed water is adjusted, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of formic acid production, in particular to an electrocatalytic device for formic acid production. Background Art

[0002] During the voyage of a ship, the exhaust gas discharged by the ship's internal combustion engine can absorb the carbon dioxide in the ship's exhaust gas through an absorption and analysis device, compress it into a temporary storage tank, and then pass through an electrocatalytic device to directly produce formic acid. The produced liquid formic acid is directly used on board or transported back to land to produce methanol fuel or other industrial products, which fundamentally solves the problem of carbon dioxide storage, transportation and reuse. That is, the method of electrochemical reduction of carbon dioxide (CO2) is used to convert CO2 into formic acid, achieving high selectivity, high conversion rate and sustainable formic acid production.

[0003] In the prior art, the temperature of electrolyzed water has a certain influence on the electrocatalytic efficiency. However, when the existing electrocatalytic device is in use, it is inconvenient to adjust the temperature of the electrolyzed water, which affects the use effect. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that it is inconvenient to adjust the temperature of electrolyzed water, and proposes an electrocatalytic device for formic acid production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An electrocatalytic device for producing formic acid comprises an electrocatalytic box, and further comprises: a heating box fixedly arranged in the electrocatalytic box, a mixing box fixedly arranged in the heating box, a heating plate fixedly arranged at the bottom of the mixing box, and a temperature sensor fixedly arranged in the mixing box; a storage box is provided in the electrocatalytic box, a first water pump is fixedly arranged in the electrocatalytic box, and two ends of the first water pump are respectively connected to the storage box and the mixing box.

[0007] In order to further heat the electrolyzed water in the mixing box, preferably, a heating tube is fixedly provided in the heating box, and the heating tube is spirally sleeved on the outer wall of the mixing box, a second air outlet pipe is fixedly provided at one end of the heating tube, and an air inlet pipe is fixedly provided on the electrocatalytic box, the other end of the heating tube is connected to the air inlet pipe through a reversing valve, and a first air outlet pipe is fixedly provided on the reversing valve.

[0008] In order to stir the electrolyzed water in the mixing box during the heating process, further, multiple groups of stirring shafts are rotatably arranged on the side wall of the mixing box, a stirring plate is fixedly arranged on one end of the stirring shaft, and a first vortex blade is fixedly arranged on one end of the stirring shaft extending into the heating tube.

[0009] In order to facilitate the addition of electrolyzed water into the mixing box, preferably, a first pipe and a second pipe are fixedly provided at both ends of the first water pump, respectively, the first pipe is connected to the storage box, and the second pipe is connected to the mixing box.

[0010] Furthermore, a bracket is fixedly arranged in the mixing box, a rotating shaft is rotatably arranged on the bracket, and a plurality of groups of mixing plates are fixedly arranged on the rotating shaft.

[0011] Furthermore, a second vortex blade is fixedly provided at one end of the rotating shaft extending into the second pipe, and a plurality of groups of the second vortex blades are provided.

[0012] Compared with the prior art, the utility model provides an electrocatalytic device for formic acid production, which has the following beneficial effects:

[0013] 1. The electrocatalytic device for formic acid production can heat the electrolyzed water in the mixing box by fixing the mixing box in the heating box and then arranging a heating plate for heating the mixing box in the heating box. In addition, a first water pump is respectively connected to the storage box and the mixing box. According to the monitoring of the temperature sensor, electrolyzed water with a lower temperature can be added to the mixing box in time to adjust the temperature of the electrolyzed water and improve the use effect.

[0014] 2. When the electrocatalytic device for formic acid production delivers electrolyzed water to the mixing box through the first water pump for temperature adjustment, the rotating shaft rotates with the mixing plate in the mixing box, so that the electrolyzed water newly entering the mixing box can be mixed with the original electrolyzed water, thereby improving the temperature adjustment effect and avoiding uneven temperature that affects the use effect.

[0015] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The utility model can heat the electrolyzed water in the mixing box by fixing the mixing box in the heating box and then arranging a heating plate for heating the mixing box in the heating box. In addition, a first water pump is respectively connected to the storage box and the mixing box. According to the monitoring of the temperature sensor, electrolyzed water with a lower temperature can be added to the mixing box in time to adjust the temperature of the electrolyzed water and improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an electrocatalytic device for formic acid production proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of an electrocatalytic device for formic acid production proposed by the utility model;

[0018] Figure 3 The utility model provides an electrocatalytic device for producing formic acid. Figure 2 A partial schematic diagram of the

[0019] Figure 4 The utility model provides an electrocatalytic device for producing formic acid. Figure 3 Enlarged view of part A.

[0020] In the figure: 1. electrocatalytic box; 101. storage box; 2. heating box; 201. heating plate; 3. mixing box; 4. air inlet pipe; 401. heating pipe; 402. first air outlet pipe; 403. second air outlet pipe; 5. first water pump; 501. first pipeline; 502. second pipeline; 6. stirring shaft; 601. stirring plate; 602. first vortex blade; 7. rotating shaft; 701. mixing plate; 702. second vortex blade; 703. bracket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Example:

[0024] Reference Figure 1-Figure 4, an electrocatalytic device for formic acid production, including an electrocatalytic box 1 for preparing formic acid, and also including: a heating box 2 is fixedly arranged in the electrocatalytic box 1, a mixing box 3 is fixedly arranged in the heating box 2, and a heating plate 201 is fixedly arranged at the bottom of the mixing box 3, and a temperature sensor is fixedly arranged in the mixing box 3; a storage box 101 is opened in the electrocatalytic box 1, a first water pump 5 is fixedly arranged in the electrocatalytic box 1, and the two ends of the first water pump 5 are connected to the storage box 101 and the mixing box 3 respectively. When the carbon dioxide electrocatalytic formic acid reaction is carried out, the temperature of the electrolyzed water is generally between 20-50 degrees Celsius. Within this temperature range, the electrolysis efficiency and reaction rate of water are relatively suitable, which can improve the catalytic synthesis efficiency of formic acid. When in use, the mixing box 3 is fixedly set in the heating box 2, and a heating plate 201 for heating the mixing box 3 is arranged in the heating box 2, so that the electrolyzed water in the mixing box 3 can be heated, and the first water pump 5 is respectively connected to the storage box 101 and the mixing box 3. According to the monitoring of the temperature sensor, electrolyzed water with a lower temperature can be added to the mixing box 3 in time to adjust the temperature of the electrolyzed water and improve the use effect.

[0025] Reference Figure 2 and Figure 3 A heating pipe 401 is fixedly arranged in the heating box 2, and the heating pipe 401 is spirally sleeved on the outer wall of the mixing box 3, a second outlet pipe 403 is fixedly arranged on one end of the heating pipe 401, and an inlet pipe 4 is fixedly arranged on the electrocatalytic box 1, the other end of the heating pipe 401 is connected to the inlet pipe 4 through a reversing valve, and a first outlet pipe 402 is fixedly arranged on the reversing valve. When in use, the heating effect of the mixing box 3 can be further improved by fixing the spiral heating pipe 401 in the heating box 2. During the heating process, the ship exhaust gas can enter the heating pipe 401 through the inlet pipe 4, and then flow out from the second outlet pipe 403 to achieve heating of the mixing box 3. The waste heat of the exhaust gas is used to heat the mixing box 3, which can reduce energy consumption and improve the use effect.

[0026] Reference Figure 2-Figure 4, multiple groups of stirring shafts 6 are rotatably arranged on the side wall of the mixing box 3, and there are two to ten groups of stirring shafts 6, preferably eight groups. A stirring plate 601 is fixedly arranged on one end of the stirring shaft 6, and a first vortex blade 602 is fixedly arranged on one end of the stirring shaft 6 extending into the heating tube 401. When in use, when hot air flows in the heating tube 401, the stirring shaft 6 can be driven to rotate through the first vortex blade 602, and then the stirring plate 601 is brought to stir in the mixing box 3, which helps to diffuse heat and improve the heating effect. When the temperature of the electrolyzed water in the mixing box 3 meets the use requirements, a second water pump is fixedly arranged in the electrocatalytic box 1, and the electrolyzed water in the mixing box 3 can be pumped out through the second water pump and transported to the use end to improve the use effect.

[0027] Reference Figure 2 and Figure 3 , a first pipe 501 and a second pipe 502 are fixedly provided at both ends of the first water pump 5, respectively, the first pipe 501 is connected to the storage box 101, and the second pipe 502 is connected to the mixing box 3. When in use, the first pipe 501 and the second pipe 502 are fixedly provided at both ends of the first water pump 5, and then connected to the storage box 101 and the mixing box 3 respectively. On the one hand, the electrolyzed water in the storage box 101 can be transported to the mixing box 3, which is convenient for the heating box 2 to heat the electrolyzed water in the mixing box 3. On the other hand, when the temperature of the electrolyzed water in the mixing box 3 is high, the electrolyzed water with a lower temperature in the storage box 101 can also be transported into the mixing box 3 and mixed with the electrolyzed water with a higher temperature in the mixing box 3, so as to reduce the temperature of the original electrolyzed water in the mixing box 3 and facilitate the temperature adjustment of the electrolyzed water in the mixing box 3.

[0028] Reference Figure 2 and Figure 3 A bracket 703 is fixedly arranged in the mixing box 3, a rotating shaft 7 is rotatably arranged on the bracket 703, a plurality of mixing plates 701 are fixedly arranged on the rotating shaft 7, and the mixing plates 701 are arranged in two to ten groups, preferably six groups. When in use, when the electrolyzed water is transported into the mixing box 3 for temperature adjustment by the first water pump 5, the rotating shaft 7 rotates with the mixing plates 701 in the mixing box 3, so that the electrolyzed water newly entering the mixing box 3 can be mixed with the original electrolyzed water, thereby improving the temperature adjustment effect and avoiding uneven temperature that affects the use effect.

[0029] Reference Figure 3A second vortex blade 702 is fixedly provided at one end of the rotating shaft 7 extending into the second pipe 502, and the second vortex blade 702 is provided with multiple groups, and the second vortex blade 702 is provided with two to twenty groups, preferably ten groups. When in use, the electrolyzed water in the storage box 101 is extracted by the first water pump 5 and transported to the mixing box 3 through the second pipe 502. The rotating shaft 7 can be rotated by the second vortex blade 702, so as to achieve stirring with the mixing plate 701, thereby improving the use effect.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrocatalytic device for producing formic acid, comprising an electrocatalytic box (1), characterized in that: Also includes: A heating box (2) is fixedly arranged in the electrocatalytic box (1), a mixing box (3) is fixedly arranged in the heating box (2), a heating plate (201) is fixedly arranged at the bottom of the mixing box (3), and a temperature sensor is fixedly arranged in the mixing box (3); A material storage box (101) is provided in the electrocatalytic box (1), a first water pump (5) is fixedly arranged in the electrocatalytic box (1), and two ends of the first water pump (5) are respectively connected to the material storage box (101) and the mixing box (3); A heating tube (401) is fixedly arranged in the heating box (2), the heating tube (401) is spirally sleeved on the outer wall of the mixing box (3), a second air outlet pipe (403) is fixedly arranged at one end of the heating tube (401), and an air inlet pipe (4) is fixedly arranged on the electrocatalytic box (1), the other end of the heating tube (401) is connected to the air inlet pipe (4) via a reversing valve, and a first air outlet pipe (402) is fixedly arranged on the reversing valve; A plurality of groups of stirring shafts (6) are rotatably disposed on the side wall of the mixing box (3), a stirring plate (601) is fixedly disposed on one end of the stirring shaft (6), and a first vortex blade (602) is fixedly disposed on one end of the stirring shaft (6) extending into the heating tube (401).

2. An electrocatalytic device for producing formic acid according to claim 1, characterized in that: A first pipe (501) and a second pipe (502) are respectively fixedly provided at both ends of the first water pump (5); the first pipe (501) is connected to the inside of the material storage box (101), and the second pipe (502) is connected to the mixing box (3).

3. An electrocatalytic device for producing formic acid according to claim 2, characterized in that: A bracket (703) is fixedly arranged inside the mixing box (3), a rotating shaft (7) is rotatably arranged on the bracket (703), and a plurality of groups of mixing plates (701) are fixedly arranged on the rotating shaft (7).

4. An electrocatalytic device for producing formic acid according to claim 3, characterized in that: One end of the rotating shaft (7) extending into the second pipe (502) is fixedly provided with a second vortex blade (702), and the second vortex blade (702) is provided in multiple groups.

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