A thermal management intake structure for a carbon dioxide electrocatalytic reactor
By designing a linkage structure of ion exchange components and thermal resistance in a carbon dioxide electrocatalytic reactor, effective control of the temperature of the anode and cathode chamber is achieved, the problem of reducing reaction efficiency caused by excessive temperature in the prior art is solved, and the safe and efficient operation of the reactor is ensured.
Patent Information
- Application Number
- CN202211216713.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-30
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2042-09-30
AI Technical Summary
In the existing carbon dioxide electrocatalytic reaction, the ambient temperature of the anode and cathode is too high, resulting in a reduced reaction efficiency. The lack of effective thermal management and intake control linkage structure makes it difficult to solve the temperature control problem.
A thermally managed air intake structure of a carbon dioxide electrocatalytic reactor is designed. The reactor is divided into an anode chamber and a cathode chamber through an ion exchange assembly, and the opening of the ventilation valve head is controlled by the linkage of the thermal resistance and the induction coil, thereby adjusting the intake amount of carbon dioxide, slowing down the speed of the electrocatalytic reaction, and avoiding excessive temperatures.
The internal temperature of the carbon dioxide electrocatalytic reactor is effectively controlled, avoiding rapid temperature rise, ensuring the safe operation of the reactor, and improving the reaction efficiency.
Smart Images

Figure CN115449831B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of carbon dioxide electrocatalysis, and in particular relates to a thermal management air intake structure of a carbon dioxide electrocatalytic reactor. Background Art
[0002] Carbon dioxide is the main component that causes the greenhouse gas effect and is also an important resource. Converting carbon dioxide into other chemical raw materials and reducing the use of fossil fuels are important technical approaches to achieve carbon dioxide emission reductions. Formic acid is an important basic chemical raw material and is widely used in medicine, dyes, leather and other fields.
[0003] The prior art has the following problems: In the method of catalytically reducing carbon dioxide to formic acid by an electrochemical method in an aqueous solution, the reaction principle is: water undergoes an oxidation reaction at the anode to generate hydrogen ions and oxygen, the hydrogen ions migrate to the cathode through a mass transfer process, and a carbon dioxide electrocatalytic reduction reaction occurs at the cathode to generate formic acid and side reaction products. In the actual carbon dioxide electrocatalytic reaction, both the anode and the cathode are in an exothermic electrolysis process. This process must control the temperature of the environment at the anode and the cathode. Excessive temperature will greatly reduce the efficiency of the carbon dioxide electrocatalytic reaction. During the actual electrocatalytic reaction, when the anode and cathode environmental temperatures are too high, the amount of carbon dioxide raw material fed must be controlled to slow down the internal electrocatalytic reaction process. However, the lack of such a linkage structure of thermal management and intake control will result in the above-mentioned problems not being solved. Summary of the invention
[0004] In order to solve the problems raised in the above background technology, the present invention provides a heat management air intake structure of a carbon dioxide electrocatalytic reactor, which has the characteristic of ensuring the safety inside the reactor.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a heat management air intake structure of a carbon dioxide electrocatalytic reactor, comprising a carbon dioxide electrocatalytic reactor assembly, on which an ion exchange assembly, a first electrode plate assembly and a second electrode plate assembly are provided, the first electrode plate assembly and the second electrode plate assembly are distributed on both sides of the ion exchange assembly, and the ion exchange assembly divides the interior of the carbon dioxide electrocatalytic reactor assembly into an anode chamber and a cathode chamber;
[0006] The carbon dioxide electrocatalytic reactor assembly includes a first reactor base and a second reactor base. The first reactor base is provided with an assembly screw, a carbon dioxide inlet end pipe and an outlet end pipe, and a serpentine channel groove is provided on the inner side of the first reactor base, an assembly nut is provided at the end of the assembly screw, a ventilation ball groove seat and a side limit cap tube are provided on the carbon dioxide inlet end pipe, and a mounting hole is provided on the second reactor base. An armature is provided inside the side limit cap tube, and an induction coil is wound around the outside of the armature. A ventilation valve head is rotatably provided in the ventilation ball groove seat, a guide shaft is fixedly provided on the ventilation valve head, a spiral groove is provided on the guide shaft, a valve head through groove is provided on the ventilation valve head, an outer sleeve seat tube is sleeved on the outside of the guide shaft, a strong magnet is fixedly provided on the rear end of the outer sleeve seat tube through a connecting support plate, a side limit convex rod is provided on the connecting support plate, a guide convex head is provided on the inner wall of the outer sleeve seat tube, and an inner wall groove is provided on the inner wall of the side limit cap tube.
[0007] Preferably, the ion exchange assembly comprises an outer fixed frame, an ion exchange membrane is arranged inside the outer fixed frame, and a top frame end tube and a bottom frame end tube are arranged at one end of the outer fixed frame;
[0008] The first electrode plate assembly comprises an electrocatalytic reaction electrode plate, and an electrode plate through groove is arranged on the electrocatalytic reaction electrode plate.
[0009] Preferably, the second electrode plate assembly is arranged between the first reactor base and the ion exchange assembly, the first electrode plate assembly is arranged between the second reactor base and the ion exchange assembly, the second electrode plate assembly is connected to the cathode of the external power supply, and the first electrode plate assembly is connected to the anode of the external power supply.
[0010] Preferably, through the isolation of the ion exchange membrane, a cathode chamber is formed between the ion exchange assembly and the first reactor base, and an anode chamber is formed between the ion exchange assembly and the second reactor base.
[0011] Preferably, the guide shaft is rotatably connected to the ventilation ball groove seat and the side limit cap tube contact end face through a bearing seat, and the ventilation valve head rotates in the ventilation ball groove seat. In a natural state, the valve head groove is not directly opposite to the carbon dioxide inlet end pipe.
[0012] Preferably, the outer sleeve seat tube is sleeved on the outside of the guide shaft and slides back and forth on the guide shaft, the guide protrusion is inserted into the spiral groove on the guide shaft, and the side limit protrusion slides linearly in the inner wall groove on the side limit cap tube.
[0013] Preferably, the induction coil outside the armature is electrically connected to an external power supply device.
[0014] Preferably, the four corners of the ion exchange assembly are provided with mounting holes, the four corners of the first electrode plate assembly are provided with mounting holes, the ion exchange assembly and the first electrode plate assembly are both strung on the assembly screw through the mounting holes, and the structure of the second electrode plate assembly is consistent with that of the first electrode plate assembly.
[0015] Preferably, a push spring is provided inside the armature, and the push spring abuts against the top of the armature and the top of the strong magnet. Through the pushing of the push spring, the outer sleeve seat tube is located at the bottom of the guide shaft.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: when the present invention is used, the second electrode plate assembly is arranged between the first reactor base and the ion exchange assembly, the first electrode plate assembly is arranged between the second reactor base and the ion exchange assembly, the second electrode plate assembly is connected to the cathode of the external power supply, the first electrode plate assembly is connected to the anode of the external power supply, and the ion exchange membrane is isolated, so that a cathode chamber is formed between the ion exchange assembly and the first reactor base, and an anode chamber is formed between the ion exchange assembly and the second reactor base; since electrolysis in the cathode chamber and the anode chamber is an exothermic reaction, and at the same time, a thermal resistor is arranged on the ion exchange assembly, the thermal resistor and the induction coil outside the armature are electrically connected to the external power supply equipment, when the temperature inside the cathode chamber and the anode chamber increases, the resistance of the thermal resistor increases, and at this time the current inside the induction coil decreases, thereby the current between the induction coil and the armature The formed magnetic force becomes smaller, and the attraction to the strong magnet decreases; since the outer shaft sleeve seat tube is sleeved on the outside of the guide shaft and slides back and forth on the guide shaft, the guide protrusion is inserted into the spiral groove on the guide shaft, and a push spring is arranged inside the armature, and the push spring contacts the top of the armature and the top of the strong magnet. Through the push of the push spring, the outer shaft sleeve seat tube is at the bottom of the guide shaft, and when the outer shaft sleeve seat tube moves down on the guide shaft, through the cooperation of the guide protrusion and the spiral groove, the valve head groove on the ventilation valve head will gradually not face the side limit cap tube. In this way, the ventilation volume inside the carbon dioxide inlet end tube per unit time is achieved. At this time, the amount of carbon dioxide raw material fed into the tube is controlled, and the process of the internal electrocatalytic reaction is slowed down, thereby avoiding the rapid increase of the internal temperature of the carbon dioxide electrocatalytic reactor and ensuring the safety of the carbon dioxide electrocatalytic reactor during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional diagram of a carbon dioxide electrocatalytic reactor assembly of the present invention;
[0018] Figure 2 is a cross-sectional view of a carbon dioxide electrocatalytic reactor assembly of the present invention;
[0019] Figure 3 An exploded view of a carbon dioxide electrocatalytic reactor assembly of the present invention;
[0020] Figure 4is a three-dimensional diagram of a carbon dioxide electrocatalytic reactor assembly of the present invention;
[0021] Figure 5 A cross-sectional view of a partial structure of a carbon dioxide electrocatalytic reactor assembly of the present invention;
[0022] Figure 6 A cross-sectional view of a partial structure of a carbon dioxide electrocatalytic reactor assembly of the present invention;
[0023] Figure 7 An exploded view of a partial structure of a carbon dioxide electrocatalytic reactor assembly of the present invention;
[0024] Figure 8 A three-dimensional diagram of the ion exchange assembly, the first electrode plate assembly and the second electrode plate assembly of the present invention;
[0025] In the figure: 100, carbon dioxide electrocatalytic reactor assembly; 101, first reactor base; 102, second reactor base; 103, assembly screw; 104, assembly nut; 105, carbon dioxide inlet end pipe; 106, side limit cap pipe; 107, serpentine channel groove; 108, outlet end pipe; 109, mounting hole; 110, ventilation valve head; 111, ventilation ball groove seat; 112, spiral slide; 113, guide shaft; 114, outer shaft sleeve seat tube; 115, connecting support plate; 1 16. Strong magnet; 117. Side limit convex rod; 118. Valve head slot; 119. Inner wall slot; 120. Armature; 121. Induction coil; 122. Guide convex head; 200. Ion exchange assembly; 201. External fixed frame; 202. Ion exchange membrane; 203. Top frame end tube; 204. Bottom frame end tube; 205. Thermal resistor; 300. First electrode plate assembly; 301. Electrocatalytic reaction electrode plate; 302. Electrode plate slot; 400. Second electrode plate assembly. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0027] See also Figure 1-8The present invention provides the following technical solutions: a heat management air intake structure of a carbon dioxide electrocatalytic reactor, comprising a carbon dioxide electrocatalytic reactor assembly 100, on which an ion exchange assembly 200, a first electrode plate assembly 300 and a second electrode plate assembly 400 are arranged, the first electrode plate assembly 300 and the second electrode plate assembly 400 are distributed on both sides of the ion exchange assembly 200, the ion exchange assembly 200 divides the interior of the carbon dioxide electrocatalytic reactor assembly 100 into an anode chamber and a cathode chamber, the second electrode plate assembly 400 is arranged between the first reactor base 101 and the ion exchange assembly 200, the first electrode plate assembly 300 is arranged between the second reactor base 102 and the ion exchange assembly 200, the second electrode plate assembly 400 is connected to the cathode of an external power supply, and the first electrode plate assembly 300 is connected to the anode of the external power supply;
[0028] The carbon dioxide electrocatalytic reactor assembly 100 includes a first reactor base 101 and a second reactor base 102. The first reactor base 101 is provided with an assembly screw 103, a carbon dioxide inlet end pipe 105 and an outlet end pipe 108, and a serpentine channel groove 107 is provided on the inner side of the first reactor base 101, an assembly nut 104 is provided at the end of the assembly screw 103, a ventilation ball groove seat 111 and a side limit cap tube 106 are provided on the carbon dioxide inlet end pipe 105, and the second reactor base 102 is provided with an assembly screw 103, a carbon dioxide inlet end pipe 105, and a side limit cap tube 106. 02 is provided with a mounting hole 109, an armature 120 is provided inside the side limit cap tube 106, an induction coil 121 is wound around the outside of the armature 120, a vent valve head 110 is rotatably provided in the vent ball groove seat 111, a guide shaft 113 is fixedly provided on the vent valve head 110, a spiral groove 112 is provided on the guide shaft 113, a valve head through groove 118 is provided on the vent valve head 110, an outer sleeve seat tube 114 is sleeved on the outer side of the guide shaft 113, and the rear end of the outer sleeve seat tube 114 is connected to the support plate 111. 15 is fixedly provided with a strong magnet 116, a side limiting convex rod 117 is provided on the connecting support plate 115, a guide convex head 122 is provided on the inner wall of the outer sleeve seat tube 114, an inner wall slide groove 119 is provided on the inner wall of the side limiting cap tube 106, the guide shaft rod 113 is rotatably connected with the contact end face of the ventilation ball groove seat 111 and the side limiting cap tube 106 through the bearing seat, and the ventilation valve head 110 rotates in the ventilation ball groove seat 111. In the natural state, the valve head through groove 118 is not directly opposite to the carbon dioxide intake end tube 105. The outer sleeve seat tube 114 is sleeved on the outside of the guide shaft 113 and reciprocates on the guide shaft 113. The guide protrusion 122 is inserted into the spiral groove 112 on the guide shaft 113. The side limit protrusion 117 is limited in the inner wall groove 119 on the side limit cap tube 106 and slides linearly. A push spring is arranged inside the armature 120. The push spring contacts the top of the armature 120 and the top of the strong magnet 116. Through the push of the push spring, the outer sleeve seat tube 114 is at the bottom of the guide shaft 113.
[0029] The ion exchange assembly 200 includes an outer fixed frame 201, an ion exchange membrane 202 and a thermal resistor 205 are arranged inside the outer fixed frame 201, and a top frame end tube 203 and a bottom frame end tube 204 are arranged at one end of the outer fixed frame 201. Through the isolation of the ion exchange membrane 202, a cathode chamber is formed between the ion exchange assembly 200 and the first reactor base 101, and an anode chamber is formed between the ion exchange assembly 200 and the second reactor base 102. The thermal resistor 205 and the induction coil 121 outside the armature 120 are electrically connected to an external power supply device;
[0030] The first electrode plate assembly 300 includes an electrocatalytic reaction electrode plate 301, on which an electrode plate through groove 302 is provided, the ion exchange assembly 200 is provided with mounting holes at four corners, the first electrode plate assembly 300 is provided with mounting holes at four corners, the ion exchange assembly 200 and the first electrode plate assembly 300 are both strung on the assembly screw 103 through the mounting holes, and the structure of the second electrode plate assembly 400 is consistent with the structure of the first electrode plate assembly 300.
[0031] The working principle and use process of the present invention:
[0032] When the present invention is used, the second electrode plate assembly 400 is arranged between the first reactor base 101 and the ion exchange assembly 200, the first electrode plate assembly 300 is arranged between the second reactor base 102 and the ion exchange assembly 200, the second electrode plate assembly 400 is connected to the cathode of the external power supply, the first electrode plate assembly 300 is connected to the anode of the external power supply, and the ion exchange membrane 202 is isolated, so that a cathode chamber is formed between the ion exchange assembly 200 and the first reactor base 101, and an anode chamber is formed between the ion exchange assembly 200 and the second reactor base 102;
[0033] Since electrolysis in the cathode chamber and the anode chamber is an exothermic reaction, and a thermal resistor is provided on the ion exchange assembly 200, the thermal resistor and the induction coil 121 outside the armature 120 are electrically connected to the external power supply device, when the temperature inside the cathode chamber and the anode chamber increases, the resistance of the thermal resistor increases, and the current inside the induction coil 121 decreases, so that the magnetic force formed between the induction coil 121 and the armature 120 decreases, and the attraction to the strong magnet 116 decreases;
[0034] Since the outer shaft sleeve seat tube 114 is sleeved on the outside of the guide shaft 113 and slides back and forth on the guide shaft 113, the guide protrusion 122 is inserted into the spiral groove 112 on the guide shaft 113, and a push spring is arranged inside the armature 120, and the push spring contacts the top of the armature 120 and the top of the strong magnet 116. Through the push of the push spring, the outer shaft sleeve seat tube 114 is at the bottom of the guide shaft 113. When the outer shaft sleeve seat tube 114 moves down on the guide shaft 113, through the cooperation of the guide protrusion 122 and the spiral groove 112, the valve head through groove 118 on the ventilation valve head 110 will gradually not face the side limit cap tube 106. In this way, the ventilation volume inside the carbon dioxide inlet end tube 105 per unit time is achieved. At this time, the amount of carbon dioxide raw material fed is controlled, and the process of the internal electrocatalytic reaction is slowed down, thereby avoiding the rapid increase of the internal temperature of the carbon dioxide electrocatalytic reactor and ensuring the safety of the carbon dioxide electrocatalytic reactor during use.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A thermal management air intake structure of a carbon dioxide electrocatalytic reactor, comprising a carbon dioxide electrocatalytic reactor assembly (100), Features: An ion exchange component (200), a first electrode plate component (300) and a second electrode plate component (400) are provided on the carbon dioxide electrocatalytic reactor component (100); the first electrode plate component (300) and the second electrode plate component (400) are distributed on both sides of the ion exchange component (200); and the ion exchange component (200) divides the interior of the carbon dioxide electrocatalytic reactor component (100) into an anode chamber and a cathode chamber; The carbon dioxide electrocatalytic reactor assembly (100) comprises a first reactor base (101) and a second reactor base (102); the first reactor base (101) is provided with an assembly screw (103), a carbon dioxide inlet end pipe (105) and an outlet end pipe (108); a serpentine channel groove (107) is provided on the inner side of the first reactor base (101); an assembly nut (104) is provided at the end of the assembly screw (103); a ventilation ball groove seat (111) and a side limit cap tube (106) are provided on the carbon dioxide inlet end pipe (105); a mounting hole (109) is provided on the second reactor base (102); an armature (120) is provided inside the side limit cap tube (106); and the armature (120) is wound around the outside. An induction coil (121) is provided, a venting valve head (110) is rotatably arranged in a venting ball groove seat (111), a guide shaft (113) is fixedly arranged on the venting valve head (110), a spiral slide groove (112) is provided on the guide shaft (113), a valve head through groove (118) is provided on the venting valve head (110), an outer sleeve seat tube (114) is sleeved on the outside of the guide shaft (113), a strong magnet (116) is fixedly arranged on the rear end of the outer sleeve seat tube (114) through a connecting support plate (115), a side limiting convex rod (117) is provided on the connecting support plate (115), a guide convex head (122) is provided on the inner wall of the outer sleeve seat tube (114), and an inner wall slide groove (119) is provided on the inner wall of the side limiting cap tube (106); The ion exchange assembly (200) comprises an external fixed frame (201), an ion exchange membrane (202) and a thermal resistor (205) are arranged inside the external fixed frame (201), and a top frame end tube (203) and a bottom frame end tube (204) are arranged at one end of the external fixed frame (201); The first electrode plate assembly (300) comprises an electrocatalytic reaction electrode plate (301), and an electrode plate through groove (302) is provided on the electrocatalytic reaction electrode plate (301); The thermal resistor (205) and the induction coil (121) outside the armature (120) are electrically connected to an external power supply device; A push spring is arranged inside the armature (120), and the push spring contacts the top of the armature (120) and the top of the strong magnet (116). Through the push of the push spring, the outer sleeve seat tube (114) is located at the bottom of the guide shaft (113).
2. A thermal management intake structure for a carbon dioxide electrocatalytic reactor according to claim 1, Features: The second electrode plate assembly (400) is arranged between the first reactor base (101) and the ion exchange assembly (200), the first electrode plate assembly (300) is arranged between the second reactor base (102) and the ion exchange assembly (200), the second electrode plate assembly (400) is connected to the cathode of the external power supply, and the first electrode plate assembly (300) is connected to the anode of the external power supply.
3. A thermal management intake structure for a carbon dioxide electrocatalytic reactor according to claim 1, Features: Through the isolation of the ion exchange membrane (202), a cathode chamber is formed between the ion exchange assembly (200) and the first reactor base (101), and an anode chamber is formed between the ion exchange assembly (200) and the second reactor base (102).
4. A thermal management intake structure for a carbon dioxide electrocatalytic reactor according to claim 1, Features: The guide shaft (113) is rotatably connected to the contact end surface of the ventilation ball groove seat (111) and the side limit cap tube (106) through the bearing seat, and the ventilation valve head (110) rotates in the ventilation ball groove seat (111). In a natural state, the valve head through groove (118) is not directly opposite to the carbon dioxide intake end tube (105).
5. A thermal management intake structure for a carbon dioxide electrocatalytic reactor according to claim 1, Features: The outer shaft sleeve seat tube (114) is sleeved on the outside of the guide shaft (113) and reciprocates on the guide shaft (113); the guide protrusion (122) is inserted into the spiral groove (112) on the guide shaft (113); and the side limit protrusion (117) is limited in the inner wall groove (119) on the side limit cap tube (106) and slides linearly.
6. A thermal management intake structure for a carbon dioxide electrocatalytic reactor according to claim 1, Features: The ion exchange assembly (200) is provided with mounting holes at its four corners, and the first electrode plate assembly (300) is provided with mounting holes at its four corners. The ion exchange assembly (200) and the first electrode plate assembly (300) are both mounted on the assembly screw (103) via the mounting holes, and the structure of the second electrode plate assembly (400) is consistent with the structure of the first electrode plate assembly (300).
Citation Information
Patent Citations
Three-chamber reactor for electrolyzing carbon dioxide
CN114381753A
Secondary battery with improvement of safty
KR1020050118412A