A high-heat-driven carbon dioxide catalytic reduction electrolytic cell

Abstract

The application discloses a high-heat-dissipation carbon dioxide catalytic reduction electrolytic cell, which comprises a carbon dioxide catalytic reduction electrolytic cell assembly, a first heat-dissipation assembly and a second heat-dissipation assembly are arranged on the carbon dioxide catalytic reduction electrolytic cell assembly, the first heat-dissipation assembly forms a heat-dissipation structure of a cathode chamber of the carbon dioxide catalytic reduction electrolytic cell assembly, and the second heat-dissipation assembly forms a heat-dissipation structure of an anode chamber of the carbon dioxide catalytic reduction electrolytic cell assembly; when the cathode chamber and the anode chamber are heated, the condensed liquid at the bottom of the back-shaped heat-dissipation pipe is vaporized, at this time, a large amount of heat is absorbed, heat dissipation of the cathode chamber and the anode chamber is realized, the vaporized condensed liquid is liquefied through cooperation of the heat-dissipation fins, the heat-dissipation fan, the V-shaped heat-dissipation pipe and the cooling water pipe, then the liquefied condensed liquid returns to the bottom of the back-shaped heat-dissipation pipe, and thus the circulation of heat dissipation and heat radiation is realized.

Description

Technical Field

[0001] This invention belongs to the field of carbon dioxide electrolysis technology, specifically relating to a high-heat-driving carbon dioxide catalytic reduction electrolytic cell. Background Technology

[0002] Vigorously developing new technologies for carbon dioxide resource conversion can promote the rapid development of emerging industries for carbon dioxide resource utilization. Formic acid is an important basic chemical raw material, widely used in pharmaceuticals, dyes, leather and other fields.

[0003] The existing technology has the following problems: The method of catalytically reducing carbon dioxide to formic acid in aqueous solution by electrochemistry involves the oxidation of water at the anode to generate hydrogen ions and oxygen. The hydrogen ions migrate to the cathode via mass transfer and participate in the electrocatalytic reduction of carbon dioxide to generate formic acid and by-products. In the process of producing formic acid by carbon dioxide electrolysis, the carbon dioxide catalytic reduction electrolytic cell is an important electrolysis device. During the reaction inside the carbon dioxide catalytic reduction electrolytic cell, both the anode and cathode electrolysis reactions are exothermic. Therefore, the carbon dioxide catalytic reduction electrolytic cell needs to have a good reaction heat removal function. However, existing carbon dioxide catalytic reduction electrolytic cells lack a relatively efficient heat removal structure. If the reaction inside the electrolytic cell is intense, the low heat removal efficiency will lead to heat accumulation inside the electrolytic cell and a decrease in electrolysis efficiency. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a high-heat-driving carbon dioxide catalytic reduction electrolyzer, which ensures efficient use of the electrolyzer.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high heat dissipation carbon dioxide catalytic reduction electrolyzer, comprising a carbon dioxide catalytic reduction electrolyzer assembly, wherein a first heat dissipation component and a second heat dissipation component are provided on the carbon dioxide catalytic reduction electrolyzer assembly, the first heat dissipation component forming a heat dissipation structure for the cathode chamber of the carbon dioxide catalytic reduction electrolyzer assembly, and the second heat dissipation component forming a heat dissipation structure for the anode chamber of the carbon dioxide catalytic reduction electrolyzer assembly.

[0006] The first heat dissipation assembly includes a heat dissipation frame, on which multiple U-shaped heat dissipation pipes and a supporting top frame are arranged. A cooling fan is arranged on the top of the supporting top frame. A V-shaped heat dissipation pipe and a heat dissipation fin are arranged on the top of one side of each U-shaped heat dissipation pipe. A cooling water pipe is arranged on the side of the supporting top frame. A first water inlet pipe and a second water inlet pipe are respectively arranged at both ends of the cooling water inlet pipe. Multiple isolation inner cavity plates are arranged inside the cooling water inlet pipe, and a water passage slit is formed between the isolation inner cavity plates and the interior of the cooling water inlet pipe.

[0007] Preferably, the carbon dioxide catalytic reduction electrolytic cell assembly includes a first electrolytic cell outer frame and a second electrolytic cell outer frame. An inlet pipe and an assembly frame are provided on the first electrolytic cell outer frame. An installation nut is provided at the end of the assembly frame. A cathode electrolytic plate, an isolation frame, and an anode electrolytic plate are connected in series between the first electrolytic cell outer frame and the second electrolytic cell outer frame. A motor connection terminal is provided at one end of both the anode electrolytic plate and the cathode electrolytic plate. An ion exchange membrane is provided inside the isolation frame, and frame channels are provided at both ends of the isolation frame.

[0008] Preferably, the loop-shaped heat drive tube and the V-shaped heat drive tube form a complete heat drive tube structure, and both the loop-shaped heat drive tube and the V-shaped heat drive tube are set with a negative pressure hollow structure inside, and the bottom of the loop-shaped heat drive tube is provided with condensate.

[0009] Preferably, multiple isolation inner cavity plates are distributed at intervals inside the cooling water pipe, and the interior of the cooling water pipe is divided into cooling interval cavities by multiple isolation inner cavity plates.

[0010] Preferably, the V-shaped heat-expelling tube extends into the cooling spacer cavity inside the cooling water pipe, and both ends of the cooling water pipe are connected to an external cooling water circulation device through a first water-passing end pipe and a second water-passing end pipe.

[0011] Preferably, the water-passing slits inside the cooling water pipe are all located at the top. Through the cooperation of the isolation inner cavity plate and the water-passing slits, a serpentine cooling water flow channel from bottom to top is formed inside the cooling water pipe.

[0012] Preferably, the cooling fan forms a cooling structure that blows air onto the cooling fins, and the bottom of the heat dissipation tube is coated with insulating varnish.

[0013] Preferably, the cathode electrolysis plate is distributed between the outer frame of the first electrolytic cell and the isolation frame, and the anode electrolysis plate is distributed between the outer frame of the second electrolytic cell and the isolation frame. A cathode chamber is formed between the outer frame of the first electrolytic cell and the isolation frame, and an anode chamber is formed between the outer frame of the second electrolytic cell and the isolation frame. The cathode electrolysis plate forms a cathode electrolysis sheet structure in the cathode chamber, and the anode electrolysis plate forms an anode electrolysis sheet structure in the anode chamber. The cathode electrolysis plate and the anode electrolysis plate are respectively connected to an external power source through a motor connection terminal.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In use, the cathode electrolysis plate is distributed between the outer frame of the first electrolysis cell and the isolation frame, and the anode electrolysis plate is distributed between the outer frame of the second electrolysis cell and the isolation frame. A cathode chamber is formed between the outer frame of the first electrolysis cell and the isolation frame, and an anode chamber is formed between the outer frame of the second electrolysis cell and the isolation frame. The cathode and anode electrolysis plates are respectively connected to an external power source through motor connection terminals. In actual use, both the cathode and anode electrolysis plates are in an exothermic process. At this time, the first heat dissipation component forms a heat dissipation and heat dissipation structure for the cathode chamber of the carbon dioxide catalytic reduction electrolysis cell assembly, and the second heat dissipation component forms a heat dissipation and heat dissipation structure for the carbon dioxide catalytic reduction... The heat dissipation structure of the anode chamber of the electrolytic cell assembly has a first heat dissipation component with the same structure as the second heat dissipation component. The heat dissipation principle of the first heat dissipation component is as follows: a U-shaped heat dissipation tube and a V-shaped heat dissipation tube form a complete heat dissipation tube structure, and both the U-shaped and V-shaped heat dissipation tubes are hollow structures with negative pressure inside. A condensate is placed at the bottom of the U-shaped heat dissipation tube. The condensate is a liquid with a low boiling point. The negative pressure structure inside the U-shaped and V-shaped heat dissipation tubes allows the boiling point of the condensate to be lower than its normal boiling point, facilitating rapid evaporation. This principle applies when the cathode and anode chambers heat up, the U-shaped heat dissipation tube... The condensate at the bottom of the tube vaporizes, absorbing a large amount of heat to achieve heat dissipation and exhaust within the cathode and anode chambers. A V-shaped heat-expelling tube and heat dissipation fins are installed on the top side of one side of the U-shaped heat-expelling tube. A cooling fan is installed on the top of the supporting frame, forming a blowing structure to dissipate heat from the heat dissipation fins. The V-shaped heat-expelling tube extends into the cooling compartment cavity inside the cooling water pipe. Both ends of the cooling water pipe are connected to an external cooling water circulation device via a first and a second water-flow pipe. In this way, the vaporized condensate is cooled and condensed, then liquefied, and finally returns to the bottom of the U-shaped heat-expelling tube, thus achieving a cycle of heat dissipation and exhaust. Simultaneously, multiple isolation... The inner cavity plates are spaced apart inside the cooling water pipe. The inside of the cooling water pipe is divided into cooling interval cavities by multiple insulating inner cavity plates. V-shaped heat-expanding tubes extend into the cooling interval cavities inside the cooling water pipe. The water-passing slits inside the cooling water pipe are all located at the top. Through the cooperation of the insulating inner cavity plates and the water-passing slits, a serpentine cooling water flow channel is formed inside the cooling water pipe from bottom to top. In this way, the cooling water effectively cools the V-shaped heat-expanding tubes and accelerates the rapid liquefaction of the vaporized condensate inside the heat-expanding tubes. This ensures the heat dissipation effect of the first and second heat-expanding components in the carbon dioxide catalytic reduction electrolysis cell assembly and ensures the actual electrolysis efficiency of the electrolysis cell. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is an exploded view of the present invention;

[0017] Figure 3 This is an exploded view of the carbon dioxide catalytic reduction electrolyzer assembly of the present invention;

[0018] Figure 4 This is a perspective view of the first heat dissipation component of the present invention;

[0019] Figure 5 This is a perspective view of a portion of the structure of the first heat dissipation component of the present invention;

[0020] Figure 6 This is a perspective view of a portion of the structure of the first heat dissipation component of the present invention;

[0021] Figure 7 This is a cross-sectional view of a portion of the structure of the first heat dissipation component of the present invention;

[0022] In the diagram: 100, Carbon dioxide catalytic reduction electrolytic cell assembly; 101, First electrolytic cell outer frame; 102, Gas inlet pipe; 103, Cathode electrolytic plate; 104, Assembly frame; 105, Isolation frame; 106, Frame channel; 107, Anode electrolytic plate; 108, Second electrolytic cell outer frame; 109, Ion exchange membrane; 110, Motor connection end; 111, Mounting nut; 200, First heat dissipation assembly; 201, Heat dissipation frame; 202, U-shaped heat dissipation pipe; 203, Support top frame; 204, Cooling water pipe; 205, Cooling fan; 206, Heat dissipation fins; 207, First water inlet pipe; 208, Second water inlet pipe; 209, Isolation inner cavity plate; 210, V-shaped heat dissipation pipe; 211, Water inlet slit; 300, Second heat dissipation assembly. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-7 The present invention provides the following technical solution: a high heat dissipation carbon dioxide catalytic reduction electrolyzer, comprising a carbon dioxide catalytic reduction electrolyzer assembly 100, wherein a first heat dissipation assembly 200 and a second heat dissipation assembly 300 are provided on the carbon dioxide catalytic reduction electrolyzer assembly 100, the first heat dissipation assembly 200 forming a heat dissipation structure for the cathode chamber of the carbon dioxide catalytic reduction electrolyzer assembly 100, and the second heat dissipation assembly 300 forming a heat dissipation structure for the anode chamber of the carbon dioxide catalytic reduction electrolyzer assembly 100;

[0025] The first heat dissipation assembly 200 includes a heat dissipation frame 201, on which multiple loop-shaped heat dissipation pipes 202 and a supporting top frame 203 are arranged. A cooling fan 205 is arranged on the top of the supporting top frame 203. A V-shaped heat dissipation pipe 210 and heat dissipation fins 206 are arranged on the top of one side of the loop-shaped heat dissipation pipes 202. A cooling water pipe 204 is arranged on the side of the supporting top frame 203. A first water inlet pipe 207 and a second water inlet pipe 208 are respectively arranged at both ends of the cooling water pipe 204. Multiple isolation inner cavity plates 209 are arranged inside the cooling water pipe 204. A water passage slit 211 is formed between the isolation inner cavity plates 209 and the interior of the cooling water pipe 204. The loop-shaped heat dissipation pipes 202 and the V-shaped heat dissipation pipes 210 form a complete heat dissipation pipe structure. The interiors of the loop-shaped heat dissipation pipes 202 and the V-shaped heat dissipation pipes 210 are both set as hollow structures under negative pressure. The structure includes a U-shaped heat pipe 202 with condensate at its bottom. Multiple isolation inner cavity plates 209 are spaced apart inside the cooling water pipe 204, which is divided into cooling interval cavities. A V-shaped heat pipe 210 extends into the cooling interval cavity inside the cooling water pipe 204. Both ends of the cooling water pipe 204 are connected to an external cooling water circulation device through a first water end pipe 207 and a second water end pipe 208. Water slits 211 inside the cooling water pipe 204 are all located at the top. Through the cooperation of the isolation inner cavity plates 209 and the water slits 211, a serpentine cooling water flow channel from bottom to top is formed inside the cooling water pipe 204. The cooling fan 205 forms a blowing cooling structure for the cooling fins 206. The bottom of the U-shaped heat pipe 202 is coated with insulating paint.

[0026] The carbon dioxide catalytic reduction electrolytic cell assembly 100 includes a first electrolytic cell outer frame 101 and a second electrolytic cell outer frame 108. An inlet pipe 102 and an assembly frame 104 are mounted on the first electrolytic cell outer frame 101. An installation nut 111 is provided at the end of the assembly frame 104. A cathode electrolytic plate 103, an isolation frame 105, and an anode electrolytic plate 107 are connected in series between the first electrolytic cell outer frame 101 and the second electrolytic cell outer frame 108. A motor connection terminal 110 is provided at one end of both the anode electrolytic plate 107 and the cathode electrolytic plate 103. An ion exchange membrane 109 is disposed inside the isolation frame 105, and both ends of the isolation frame 105 are... A frame channel 106 is provided; a cathode electrolysis plate 103 is distributed between the outer frame platform 101 of the first electrolysis cell and the isolation frame 105, and an anode electrolysis plate 107 is distributed between the outer frame platform 108 of the second electrolysis cell and the isolation frame 105. A cathode chamber is formed between the outer frame platform 101 of the first electrolysis cell and the isolation frame 105, and an anode chamber is formed between the outer frame platform 108 of the second electrolysis cell and the isolation frame 105. The cathode electrolysis plate 103 forms a cathode electrolysis sheet structure in the cathode chamber, and the anode electrolysis plate 107 forms an anode electrolysis sheet structure in the anode chamber. The cathode electrolysis plate 103 and the anode electrolysis plate 107 are respectively connected to an external power supply through a motor connection terminal 110.

[0027] The condensate at the bottom of the inner part of the loop-shaped heat pipe 202 in this invention is a known technology that has been widely used in daily life and has a low boiling point.

[0028] Working principle and usage of the present invention: In use, the cathode electrolysis plate 103 is distributed between the outer frame 101 of the first electrolytic cell and the isolation frame 105, and the anode electrolysis plate 107 is distributed between the outer frame 108 of the second electrolytic cell and the isolation frame 105. A cathode chamber is formed between the outer frame 101 of the first electrolytic cell and the isolation frame 105, and an anode chamber is formed between the outer frame 108 of the second electrolytic cell and the isolation frame 105. The cathode electrolysis plate 103 and the anode electrolysis plate 107 are respectively connected to an external power source through the motor connection terminal 110. In actual use, both the cathode electrolysis plate 103 and the anode electrolysis plate 107 are in an exothermic process. At this time, the first heat dissipation component 200 forms the heat dissipation of the cathode chamber of the carbon dioxide catalytic reduction electrolysis cell component 100. The heat dissipation structure, the second heat dissipation component 300 forms the heat dissipation structure of the anode chamber of the carbon dioxide catalytic reduction electrolysis cell component 100. The structure of the first heat dissipation component 200 is the same as that of the second heat dissipation component 300. The heat dissipation principle of the first heat dissipation component 200 of this invention is as follows: the U-shaped heat dissipation tube 202 and the V-shaped heat dissipation tube 210 form a complete heat dissipation tube structure, and the interior of both the U-shaped heat dissipation tube 202 and the V-shaped heat dissipation tube 210 is set as a hollow structure with negative pressure. The bottom of the U-shaped heat dissipation tube 202 is provided with condensate, which is a liquid with a low boiling point. At the same time, the U-shaped heat dissipation tube 202 and the V-shaped heat dissipation tube 210 are set as a negative pressure structure. The negative pressure structure can make the boiling point of the condensate lower than its normal boiling point, which facilitates the rapid cooling of the condensate. The principle of rapid evaporation is as follows: when the temperature rises inside the cathode and anode chambers, the condensate at the bottom of the U-shaped heat drive tube 202 vaporizes, absorbing a large amount of heat and achieving heat drive and dissipation inside the cathode and anode chambers. A V-shaped heat drive tube 210 and heat dissipation fins 206 are installed on the top side of the U-shaped heat drive tube 202. A cooling fan 205 is installed on the top of the supporting frame 203, forming a blowing structure for heat dissipation of the heat dissipation fins 206. The V-shaped heat drive tube 210 extends into the cooling compartment cavity inside the cooling water pipe 204. The two ends of the cooling water pipe 204 are connected to an external cooling water circulation device through a first water-passing end pipe 207 and a second water-passing end pipe 208. In this way, the vaporized condensate is cooled and condensed, and the vaporized condensate is cooled and condensed. The condensate liquefies, and then the liquefied condensate returns to the bottom of the U-shaped heat drive tube 202, thus achieving a cycle of heat drive and heat dissipation. Simultaneously, multiple insulating inner cavity plates 209 are spaced apart within the cooling water pipe 204, dividing the interior of the cooling water pipe 204 into cooling interval chambers. The V-shaped heat drive tube 210 extends into the cooling interval chambers inside the cooling water pipe 204. The water-passing slits 211 inside the cooling water pipe 204 are all located at the top. Through the cooperation of the insulating inner cavity plates 209 and the water-passing slits 211, a serpentine cooling water flow channel is formed inside the cooling water pipe 204 from bottom to top. In this way, effective cooling of the V-shaped heat drive tube 210 by the cooling water is ensured, and the rapid liquefaction of the vaporized condensate inside the heat drive tube is accelerated.This ensures the effective heat dissipation of the first heat dissipation component 200 and the second heat dissipation component 300 within the carbon dioxide catalytic reduction electrolysis cell assembly 100, thereby guaranteeing the actual electrolysis efficiency of the electrolysis cell.

[0029] Although embodiments of the invention 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-thermally driven carbon dioxide catalytic reduction electrolysis cell comprising a carbon dioxide catalytic reduction electrolysis cell assembly (100), characterized in that: The carbon dioxide catalytic reduction electrolyzer assembly (100) is provided with a first heat-driving assembly (200) and a second heat-driving assembly (300). The first heat-driving assembly (200) forms a heat dissipation and heat-driving structure for the cathode chamber of the carbon dioxide catalytic reduction electrolyzer assembly (100), and the second heat-driving assembly (300) forms a heat dissipation and heat-driving structure for the anode chamber of the carbon dioxide catalytic reduction electrolyzer assembly (100). The first heat dissipation component (200) includes a heat dissipation frame (201), on which a plurality of loop-shaped heat dissipation pipes (202) and a support top frame (203) are provided. A cooling fan (205) is provided on the top of the support top frame (203). A V-shaped heat dissipation pipe (210) and a heat dissipation fin (206) are provided on the top of one side of the loop-shaped heat dissipation pipe (202). A cooling water pipe (204) is provided on the side of the support top frame (203). A first water-passing end pipe (207) and a second water-passing end pipe (208) are respectively provided at both ends of the cooling water pipe (204). A plurality of isolation inner cavity plates (209) are provided inside the cooling water pipe (204). A water-passing slit (211) is formed between the isolation inner cavity plates (209) and the interior of the cooling water pipe (204). The carbon dioxide catalytic reduction electrolytic cell assembly (100) includes a first electrolytic cell outer frame (101) and a second electrolytic cell outer frame (108). The first electrolytic cell outer frame (101) is provided with an inlet pipe (102) and an assembly frame rod (104). The assembly frame rod (104) is provided with an installation nut (111) at its end. A cathode electrolytic plate (103), an isolation frame (105), and an anode electrolytic plate (107) are connected in series between the first electrolytic cell outer frame (101) and the second electrolytic cell outer frame (108). A motor connection end (110) is provided at one end of both the anode electrolytic plate (107) and the cathode electrolytic plate (103). An ion exchange membrane (109) is provided inside the isolation frame (105), and frame channels (106) are provided at both ends of the isolation frame (105). The loop-shaped heat drive tube (202) and the V-shaped heat drive tube (210) form a complete heat drive tube structure. The interior of both the loop-shaped heat drive tube (202) and the V-shaped heat drive tube (210) is set as a hollow structure under negative pressure. The bottom of the loop-shaped heat drive tube (202) is provided with condensate. Multiple isolation inner cavity plates (209) are spaced apart inside the cooling water pipe (204), and the interior of the cooling water pipe (204) is divided into cooling interval cavities by multiple isolation inner cavity plates (209); The V-shaped heat-expelling tube (210) extends into the cooling interval cavity inside the cooling water pipe (204), and the two ends of the cooling water pipe (204) are connected to the external cooling water circulation device through the first water-passing end pipe (207) and the second water-passing end pipe (208). The water passage slits (211) inside the cooling water pipe (204) are all located at the top. Through the cooperation of the isolation inner cavity plate (209) and the water passage slits (211), a serpentine cooling water flow channel from bottom to top is formed inside the cooling water pipe (204). The cooling fan (205) forms a cooling structure that blows air onto the cooling fins (206), and the bottom of the heat-driving tube (202) is coated with insulating paint. The cathode electrolysis plate (103) is distributed between the outer frame (101) of the first electrolytic cell and the isolation frame (105), and the anode electrolysis plate (107) is distributed between the outer frame (108) of the second electrolytic cell and the isolation frame (105). A cathode chamber is formed between the outer frame (101) of the first electrolytic cell and the isolation frame (105), and an anode chamber is formed between the outer frame (108) of the second electrolytic cell and the isolation frame (105). The cathode electrolysis plate (103) forms a cathode electrolysis plate structure in the cathode chamber, and the anode electrolysis plate (107) forms an anode electrolysis plate structure in the anode chamber. The cathode electrolysis plate (103) and the anode electrolysis plate (107) are respectively connected to an external power source through a motor connection terminal (110).

Images