Gas-liquid mixed cooling CO2 electro-catalysis device

Abstract

The utility model discloses a gas-liquid mixed cooling CO2 electro-catalysis device which comprises a base, a mounting box is arranged in the middle of the upper end of the base, mounting frames are arranged in mounting grooves formed in the middles of the left end and the right end of the mounting box, and the gas-liquid mixed cooling CO2 electro-catalysis device further comprises a cooling mechanism. The cooling mechanism comprises a spiral cooling pipe, a water inlet pipe and a drainage pipe, the spiral cooling pipe is arranged in the mounting box, the water inlet pipe is arranged in a connecting groove formed in the upper side of the front end of the mounting box, a water inlet valve is connected to the front side of the water inlet pipe in series, and the rear end of the water inlet pipe communicates with a water inlet formed in the upper side of the front end of the spiral cooling pipe; according to the gas-liquid mixed cooling CO2 electro-catalysis device, heat transfer and dissipation can be jointly achieved through the convective heat transfer capacity of gas and the characteristics of high heat conductivity, high specific heat capacity and the like of liquid; the problem that the cooling effect is reduced due to the fact that air cooling heat dissipation is in a high-temperature environment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of renewable energy, in particular to a CO2 electrocatalytic device with gas-liquid hybrid cooling. Background Technique

[0002] The CO2 electrocatalytic device can convert carbon dioxide (CO2) into other useful substances, such as carbon monoxide (CO), formic acid (HCOOH), or methanol (CH3OH), etc. This technology has important application value in the current environmental protection and energy fields because it helps to reduce the carbon dioxide content in the atmosphere, thereby alleviating the greenhouse effect;

[0003] When the CO2 electrocatalytic device is in use, usually CO2 is injected into the installation box. Then, an external conductive device is contacted with the positive electrode tab and the negative electrode tab. The external power supply provides electrical energy through the positive electrode tab and the negative electrode tab. At this time, the ions in the electrolyte start to move directionally to form an electric current. On the negative electrode plate, CO2 molecules receive electrons from the power supply and undergo a reduction reaction, being converted into other organic compounds or fuels, such as methanol, methane, acetic acid, etc. At the same time, on the positive electrode plate, the ions in the electrolyte lose electrons and undergo an oxidation reaction, generating oxygen or other oxidation products;

[0004] During the operation of the existing CO2 electrocatalytic device, a large amount of heat is usually generated. To ensure the catalytic effect, multiple driving devices are usually used to drive the fan blades to rotate simultaneously to cool the CO2 electrocatalytic device by air cooling. However, the effect of air cooling is greatly affected by the ambient temperature. In a high-temperature environment, the effect of air cooling may decrease significantly and cannot meet the heat dissipation requirements of the CO2 electrocatalytic device. For this reason, we propose a CO2 electrocatalytic device with gas-liquid hybrid cooling. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a CO2 electrocatalytic device with gas-liquid hybrid cooling, which can jointly achieve heat transfer and dissipation through the convective heat transfer ability of gas and the characteristics of high thermal conductivity and high specific heat capacity of liquid, and solve the problem that the cooling effect is reduced due to air cooling in a high-temperature environment, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A CO2 electrocatalytic device with gas-liquid hybrid cooling, including a base, a mounting box is arranged in the middle of the upper end of the base, mounting frames are arranged in the mounting grooves opened in the middle of the left and right ends of the mounting box, and a cooling mechanism is further included;

[0007] Cooling mechanism: It includes a spiral cooling pipe, a water inlet pipe and a drain pipe. The spiral cooling pipe is arranged inside the installation box. The water inlet pipe is arranged in the connection groove opened on the upper side of the front end of the installation box. An inlet valve is connected in series on the front side of the water inlet pipe. The rear end of the water inlet pipe is communicated with the water inlet arranged on the upper side of the front end of the spiral cooling pipe. The drain pipe is arranged in the avoidance groove opened on the lower side of the front end of the installation box. A drain valve is connected in series on the front side of the drain pipe. The rear end of the drain pipe is communicated with the drain port arranged on the lower side of the front end of the spiral cooling pipe. The heat transfer and dissipation can be jointly achieved through the convective heat transfer ability of the gas and the characteristics of the liquid such as high thermal conductivity and high specific heat capacity, solving the problem that the cooling effect is reduced due to air cooling being affected by high temperature environment.

[0008] Further, it also includes a control switch. The control switch is arranged at the front end of the installation box. The input end of the control switch is electrically connected to an external power supply, and it can regulate the electrical components inside the equipment.

[0009] Further, the cooling mechanism also includes a fixed box, a mounting rod, a fan blade, a cross bar, a driving pulley and a belt pulley. The fixed boxes are respectively arranged on the left and right sides of the upper end of the base. The mounting rods are rotatably connected inside the fixed boxes. Fan blades are respectively arranged on the sides of the mounting rods close to the center of the inside of the base. Belt pulleys are respectively arranged on the sides of the mounting rods far from the center of the inside of the base. The cross bar is rotatably connected inside the base. Driving pulleys are respectively arranged on the left and right sides of the outer arc surface of the cross bar. The two vertically adjacent driving pulleys and belt pulleys are all connected by belts in transmission, which can increase the air flow speed.

[0010] Further, it also includes an output rod and bevel gears. The output rod is rotatably connected to the middle of the front wall of the base through a bearing. The bevel gears are respectively arranged at the rear end of the output rod and the middle of the outer arc surface of the cross bar. The two bevel gears are meshed, and the cross bar can be used to drive the mounting rod to rotate.

[0011] Further, it also includes a motor. The motor is arranged at the front end of the base. The rear end of the output shaft of the motor is fixedly connected to the front end of the output rod. The input end of the motor is electrically connected to the output end of the control switch, and the cross bar can be driven to rotate through the output rod.

[0012] Further, it also includes a protective box, a positive electrode tab, a negative electrode tab, a positive electrode plate, a negative electrode plate, a membrane electrode assembly, an air inlet pipe and an exhaust pipe. The protective box is placed inside the installation box, and the outer surface of the protective box is in contact with the spiral cooling pipe. The positive electrode tab is arranged on the left side of the upper end of the protective box, and a positive electrode plate is arranged at the lower end of the positive electrode tab. The negative electrode tab is arranged on the right side of the upper end of the protective box, and a negative electrode plate is arranged at the lower end of the negative electrode tab. The inside of the protective box contains electrolyte, and a membrane electrode assembly is arranged in the middle of the bottom wall of the protective box. The air inlet pipe is communicated with an air inlet arranged on the lower side of the right wall of the installation box, and an air inlet valve is connected in series on the right side of the air inlet pipe. The exhaust pipe is arranged in an exhaust port opened on the right side of the top wall of the installation box, and an exhaust valve is connected in series on the upper side of the exhaust pipe. It can convert CO2 into other organic compounds or fuels, such as methanol, methane, acetic acid, etc.

[0013] Further, it also includes a catalyst layer. The catalyst layer is arranged on the lower side outside the negative electrode plate. The lower ends of the positive electrode plate and the catalyst layer are both located inside the electrolyte. The catalyst layer can accelerate the reaction rate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The gas-liquid hybrid cooling CO2 electrocatalytic device has the following advantages:

[0015] During the process of the cooling water flowing inside the spiral cooling pipe, it absorbs the heat generated during the electrocatalysis of CO2, thereby performing water cooling on the protective box. At the same time, the rotation of the fan blades increases the air flow rate inside the installation box, thereby performing air cooling on the cooling water inside the spiral cooling pipe and the protective box. The heat transfer and dissipation can be jointly achieved through the characteristics of the convective heat transfer ability of the gas and the high thermal conductivity and high specific heat capacity of the liquid, further improving the cooling effect and solving the problem that the cooling effect is reduced due to air cooling being affected by the high-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 It is a schematic front sectional structure diagram of the present utility model;

[0018] Figure 3 It is a schematic upper sectional structure diagram of the present utility model;

[0019] Figure 4 It is a schematic internal structure diagram of the protective box of the present utility model;

[0020] Figure 5 It is a schematic enlarged structure diagram at position A of the present utility model.

[0021] In the figure: 1 base, 2 installation box, 3 control switch, 4 installation frame, 5 cooling mechanism, 51 spiral cooling pipe, 52 water inlet pipe, 53 drain pipe, 54 fixed box, 55 installation rod, 56 fan blade, 57 cross bar, 58 driving pulley, 59 pulley, 6 protective box, 7 positive pole ear, 8 negative pole ear, 9 positive pole plate, 10 negative pole plate, 11 catalyst layer, 12 exchange membrane, 13 electrolyte, 14 output rod, 15 bevel gear, 16 motor, 17 intake pipe, 18 exhaust pipe. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , this embodiment provides a technical solution: a CO2 electrocatalytic device with gas-liquid hybrid cooling, including a base 1, an installation box 2 is arranged in the middle of the upper end of the base 1, installation frames 4 are arranged in the installation grooves opened in the middle of the left and right ends of the installation box 2, and a cooling mechanism 5 is further included;

[0024] Cooling mechanism 5: It includes a spiral cooling pipe 51, a water inlet pipe 52, and a drain pipe 53. The spiral cooling pipe 51 is arranged inside the installation box 2. The water inlet pipe 52 is arranged in the connection groove opened on the upper side of the front end of the installation box 2. A water inlet valve is connected in series on the front side of the water inlet pipe 52. The rear end of the water inlet pipe 52 is communicated with the water inlet arranged on the upper side of the front end of the spiral cooling pipe 51. The drain pipe 53 is arranged in the avoidance groove opened on the lower side of the front end of the installation box 2. A drain valve is connected in series on the front side of the drain pipe 53. The rear end of the drain pipe 53 is communicated with the drain port arranged on the lower side of the front end of the spiral cooling pipe 51. The cooling mechanism 5 further includes a fixed box 54, a mounting rod 55, a fan blade 56, a cross bar 57, a driving pulley 58, and a pulley 59. The fixed boxes 54 are respectively arranged on the left and right sides of the upper end of the base 1. The mounting rods 55 are rotatably connected inside the fixed boxes 54. The fan blades 56 are respectively arranged on the sides of the mounting rods 55 close to the center of the interior of the base 1. The pulleys 59 are respectively arranged on the sides of the mounting rods 55 away from the center of the interior of the base 1. The cross bar 57 is rotatably connected inside the base 1. The driving pulleys 58 are respectively arranged on the left and right sides of the outer arc surface of the cross bar 57. The two vertically adjacent driving pulleys 58 and pulleys 59 are connected by belts. During the process of the cooling water flowing inside the spiral cooling pipe 51, it absorbs the heat generated during the electrocatalysis of CO2, thereby performing water cooling on the protection box 6. At the same time, the rotation of the fan blades 56 is used to increase the flow rate of the air inside the installation box 2, thereby performing air cooling on the cooling water inside the spiral cooling pipe 51 and the protection box 6. The transfer and dissipation of heat can be jointly achieved through the characteristics of the convective heat transfer ability of the gas and the high thermal conductivity and high specific heat capacity of the liquid, further improving the cooling effect. Only one driving device is required to complete the whole process, solving the problem that the cooling effect is reduced due to air cooling being affected by high temperature environments.

[0025] Among them: It further includes a control switch 3. The control switch 3 is arranged on the front end of the installation box 2. The input end of the control switch 3 is electrically connected to an external power supply, and it can regulate the electrical components inside the device.

[0026] Among them: It further includes an output rod 14 and bevel gears 15. The output rod 14 is rotatably connected to the middle of the front wall of the base 1 through a bearing. The bevel gears 15 are respectively arranged at the rear end of the output rod 14 and the middle of the outer arc surface of the cross bar 57. The two bevel gears 15 are meshed. The output shaft of the driving device drives the output rod 14 to rotate. The output rod 14 drives the cross bar 57 to rotate through the meshing connection between the bevel gears 15. The cross bar 57 drives the driving pulley 58 to rotate. The driving pulley 58 drives the pulley 59 to rotate through the belt, and further drives the mounting rod 55 to rotate through the pulley 59. The mounting rod 55 drives the fan blade 56 to rotate.

[0027] Among them: It further includes a motor 16. The motor 16 is arranged at the front end of the base 1. The rear end of the output shaft of the motor 16 is fixedly connected to the front end of the output rod 14. The input end of the motor 16 is electrically connected to the output end of the control switch 3. Through the regulation of the control switch 3, the motor 16 starts to operate. The output shaft of the motor 16 drives the output rod 14 to rotate, and the output rod 14 drives the cross bar 57 to rotate through the meshing connection between bevel gears 15.

[0028] Among them: It further includes a protective box 6, a positive electrode tab 7, a negative electrode tab 8, a positive electrode plate 9, a negative electrode plate 10, a membrane 12, an air inlet pipe 17 and an exhaust pipe 18. The protective box 6 is placed inside the installation box 2. The outer surface of the protective box 6 is in contact with the spiral cooling pipe 51. The positive electrode tab 7 is arranged on the left side of the upper end of the protective box 6. The positive electrode plate 9 is arranged at the lower end of the positive electrode tab 7. The negative electrode tab 8 is arranged on the right side of the upper end of the protective box 6. The negative electrode plate 10 is arranged at the lower end of the negative electrode tab 8. The protective box 6 contains electrolyte 13. The membrane 12 is arranged in the middle of the bottom wall of the protective box 6. The air inlet pipe 17 is communicated with the air inlet arranged on the lower side of the right wall of the installation box 2. An air inlet valve is connected in series on the right side of the air inlet pipe 17. The exhaust pipe 18 is arranged in the exhaust port opened on the right side of the top wall of the installation box 2. An exhaust valve is connected in series on the upper side of the exhaust pipe 18. During operation, the air inlet valve and the exhaust valve are opened. CO2 enters the interior of the air inlet pipe 17 through an external pipeline and is finally injected into the interior of the installation box 2 through the air inlet pipe 17. Then, an external conductive device is contacted with the positive electrode tab 6 and the negative electrode tab 9. The external power supply provides electric energy through the positive electrode tab 6 and the negative electrode tab 9. At this time, the ions in the electrolyte 10 start to move directionally to form an electric current. On the negative electrode plate 10, CO2 molecules receive electrons from the power supply and undergo a reduction reaction, being converted into other organic compounds or fuels, such as methanol, methane, acetic acid, etc. At the same time, on the positive electrode plate 9, the ions in the electrolyte 10 lose electrons and undergo an oxidation reaction to produce oxygen or other oxidation products.

[0029] Among them: It further includes a catalyst layer 11. The catalyst layer 11 is arranged on the lower side outside the negative electrode plate 10. The lower ends of the positive electrode plate 9 and the catalyst layer 11 are both located inside the electrolyte 13. The catalyst layer 11 is copper sulfide, and the catalyst layer 11 can accelerate the reaction rate.

[0030] The working principle of a gas-liquid hybrid cooling CO2 electrocatalytic device provided by the present utility model is as follows: Before use, connect the water inlet pipe 52 to an external transfer pump, and connect the drain pipe 53, the gas inlet pipe 17, and the exhaust pipe 18 to external pipelines. The positive electrode tab 7 is made of aluminum, the negative electrode tab 8 is made of nickel, the positive electrode plate 9 is made of copper oxide, the negative electrode plate 10 is made of platinum, the electrolyte 10 is made of acetic acid, and the exchange membrane 12 is made of polypropylene. During operation, open the intake valve and the exhaust valve. CO2 enters the interior of the gas inlet pipe 17 through an external pipeline and is finally injected into the interior of the installation box 2 through the gas inlet pipe 17. Then, contact an external conductive device with the positive electrode tab 6 and the negative electrode tab 9. The external power supply provides electrical energy through the positive electrode tab 6 and the negative electrode tab 9. At this time, the ions in the electrolyte 10 start to move directionally to form an electric current. On the negative electrode plate 10, CO2 molecules accept electrons from the power supply and undergo a reduction reaction, being converted into other organic compounds or fuels, such as methanol, methane, acetic acid, etc. The gas converted from CO2 is discharged through the exhaust pipe 18. At the same time, on the positive electrode plate 9, the ions in the electrolyte 10 lose electrons and undergo an oxidation reaction, generating oxygen or other oxidation products. The catalyst layer 11 is copper sulfide, and the catalyst layer 11 can accelerate the reaction rate. During the electrocatalysis of CO2, open the water inlet valve and the drain valve. The external transfer pump injects cooling water into the interior of the spiral cooling pipe 51 through the water inlet pipe 52. During the process of the cooling water flowing inside the spiral cooling pipe 51, it absorbs the heat generated during the electrocatalysis of CO2, thereby performing water cooling on the protection box 6. The cooling water after use is finally discharged through the drain pipe 53. At this time, through the regulation of the control switch 3, the motor 16 starts to operate. The output shaft of the motor 16 drives the output rod 14 to rotate. The output rod 14 drives the cross bar 57 to rotate through the meshing connection between the bevel gears 15. The cross bar 57 drives the driving pulley 58 to rotate. The driving pulley 58 drives the pulley 59 to rotate through a belt, and then drives the installation rod 55 to rotate through the pulley 59. The installation rod 55 drives the fan blade 56 to rotate. At this time, the fan blade 56 on the right rotates to inject air into the interior of the installation box 2 through the installation frame 4 on the right, and the fan blade 56 on the left rotates to extract air through the installation frame 4 on the left, thereby increasing the air flow rate inside the installation box 2 and performing air cooling on the cooling water inside the spiral cooling pipe 51 and the protection box 6.

[0031] It should be noted that the motor 16 disclosed in the above embodiments can be selected as 5IK200A-AF, and a control button corresponding to the motor 16 for controlling its switch is provided on the control switch 3.

[0032] The above are only embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A gas-liquid hybrid cooled CO2 electrocatalytic device, comprising a base (1), a mounting box (2) is arranged in the middle of the upper end of the base (1), and mounting frames (4) are arranged in the mounting grooves opened in the middle of the left and right ends of the mounting box (2), and it is characterized in that: It also includes a cooling mechanism (5); Cooling mechanism (5): It includes a spiral cooling pipe (51), a water inlet pipe (52) and a drain pipe (53). The spiral cooling pipe (51) is arranged inside the installation box (2). The water inlet pipe (52) is arranged in the connection groove opened on the upper side of the front end of the installation box (2). A water inlet valve is connected in series to the front side of the water inlet pipe (52). The rear end of the water inlet pipe (52) is communicated with the water inlet arranged on the upper side of the front end of the spiral cooling pipe (51). The drain pipe (53) is arranged in the avoidance groove opened on the lower side of the front end of the installation box (2). A drain valve is connected in series to the front side of the drain pipe (53). The rear end of the drain pipe (53) is communicated with the drain port arranged on the lower side of the front end of the spiral cooling pipe (51).

2. The gas-liquid mixed cooling CO2 electrocatalytic device according to claim 1, characterized in that: It also includes a control switch (3). The control switch (3) is arranged on the front end of the installation box (2), and the input end of the control switch (3) is electrically connected to an external power supply.

3. The gas-liquid hybrid cooling CO2 electrocatalytic device according to claim 2, wherein: The cooling mechanism (5) also includes a fixed box (54), mounting rods (55), fan blades (56), cross bars (57), driving pulley wheels (58) and pulley wheels (59). The fixed boxes (54) are respectively arranged on the left and right sides of the upper end of the base (1). Mounting rods (55) are rotatably connected inside the fixed boxes (54). Fan blades (56) are respectively arranged on the sides of the mounting rods (55) close to the center of the interior of the base (1). Pulley wheels (59) are respectively arranged on the sides of the mounting rods (55) away from the center of the interior of the base (1). A cross bar (57) is rotatably connected inside the base (1). Driving pulley wheels (58) are respectively arranged on the left and right sides of the outer arc surface of the cross bar (57). The two vertically adjacent driving pulley wheels (58) and pulley wheels (59) are connected by belt drives.

4. The gas-liquid hybrid cooled CO2 electrocatalytic device according to claim 3, characterized in that: It also includes an output rod (14) and bevel gears (15). The output rod (14) is rotatably connected to the middle of the front wall of the base (1) through a bearing. Bevel gears (15) are respectively arranged at the rear end of the output rod (14) and the middle of the outer arc surface of the cross bar (57), and the two bevel gears (15) are meshed and connected.

5. The CO2 electrocatalytic device with gas-liquid mixed cooling according to claim 4, characterized in that: It also includes a motor (16). The motor (16) is arranged on the front end of the base (1). The rear end of the output shaft of the motor (16) is fixedly connected to the front end of the output rod (14), and the input end of the motor (16) is electrically connected to the output end of the control switch (3).

6. The CO2 electrocatalytic device with gas-liquid mixed cooling according to claim 1, characterized in that: It further includes a protective box (6), a positive electrode tab (7), a negative electrode tab (8), a positive electrode plate (9), a negative electrode plate (10), a membrane (12), an intake pipe (17) and an exhaust pipe (18). The protective box (6) is placed inside the installation box (2), and the outer surface of the protective box (6) is in contact with the spiral cooling pipe (51). The positive electrode tab (7) is arranged on the left side of the upper end of the protective box (6), and the positive electrode plate (9) is arranged at the lower end of the positive electrode tab (7). The negative electrode tab (8) is arranged on the right side of the upper end of the protective box (6), and the negative electrode plate (10) is arranged at the lower end of the negative electrode tab (8). The protective box (6) contains electrolyte (13), and the membrane (12) is arranged in the middle of the bottom wall of the protective box (6). The intake pipe (17) is communicated with the air inlet arranged on the lower side of the right wall of the installation box (2), and an intake valve is connected in series on the right side of the intake pipe (17). The exhaust pipe (18) is arranged in the exhaust port opened on the right side of the top wall of the installation box (2), and an exhaust valve is connected in series on the upper side of the exhaust pipe (18).

7. The gas-liquid hybrid cooled CO2 electrocatalytic device according to claim 6, characterized in that: It further includes a catalyst layer (11), and the catalyst layer (11) is arranged on the lower side outside the negative electrode plate (10). The lower ends of the positive electrode plate (9) and the catalyst layer (11) are both located inside the electrolyte (13).

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