Hydragen-oxygen electrolyzing device and carbon paper electrodes thereof with material-changed outer surfaces

Abstract

A hydrogen-oxygen electrolyzing device for generating hydrogen and oxygen with electrolytic solution comprises a first container providing a receiving trough for containing the electrolyte, and at least an electrolyzing structure; the electrolyzing structure further comprises: at least a serial cell being disposed in the receiving trough and further comprising a plurality of electrodes with a gap between every two neighboring electrodes, a first conductor and a second conductor; the first and second conductors electrically connect with the two outermost electrodes; characterized in that each of the electrodes is a carbon paper electrode with both outer surfaces thereof being changed in material; the carbon paper electrode further comprises: a carbon paper substrate having a first surface and a second surface, a first metal layer being joined to the first surface, and a second metal layer being joined to the second surface.

1 . A hydrogen-oxygen electrolyzing device for generating hydrogen and oxygen with electrolytic solution comprising:
 a first container providing a receiving trough for containing the electrolyte; and   at least an electrolyzing structure;   wherein said electrolyzing structure further comprises:   at least a serial cell being disposed in said receiving trough and further comprising a plurality of electrodes with a gap between every two neighboring ones of said electrodes;   a first conductor; and   a second conductor;   wherein said first conductor and said second conductor electrically connect with the two outermost ones of said electrodes;   characterized in that each of said electrodes is a carbon paper electrode with material changed outer surfaces, and further comprises:   a carbon paper substrate having a first surface and a second surface;   a first metal layer being joined to said first surface; and   a second metal layer being joined to said second surface.   
     
     
         2 . The hydrogen-oxygen electrolyzing device as defined in  claim 1 , wherein said first and second metal layers are made with a plurality of micro metal particles respectively. 
     
     
         3 . The hydrogen-oxygen electrolyzing device as defined in  claim 2  further comprises a piezoelectric slice, which is disposed between said electrodes for disturbing the electrolyte uniformly for reinforcing the fluidity of the hydrogen and the oxygen and enhancing effectiveness of electrolysis. 
     
     
         4 . The hydrogen-oxygen electrolyzing device as defined in  claim 3 , wherein the gradient of the respective micro metal particles is one of nickel, nickel compound, platinum, platinum compound, rhodium, rhodium compound, cobalt, cobalt compound, iron, iron compound, palladium and palladium compound, or mixtures of the preceding metals or metal compounds. 
     
     
         5 . The hydrogen-oxygen electrolyzing device as defined in  claim 4 , wherein said first metal layer and said second metal layer each have a first inner metal layer, a second inner metal layer, a first outer metal layer and a second outer metal layer respectively; said first inner metal layer is disposed between said first surface and said first outer metal layer; said second inner metal layer is disposed between said second surface and said second metal layer. 
     
     
         6 . The hydrogen-oxygen electrolyzing device as defined in  claim 5 , wherein said metal particles at said first inner metal layer provides a density greater than that at said first outer metal layer; said metal particles at said second inner metal layer provides a density greater than that at said second outer metal layer. 
     
     
         7 . The hydrogen-oxygen electrolyzing device as defined in  claim 6 , wherein each of said micro metal particles has a diameter in a range 15˜30 μm. 
     
     
         8 . The hydrogen-oxygen electrolyzing device as defined in  claim 7 , wherein said micro metal particles are coated on the first and second surfaces of said carbon paper substrate with one of following ways: electroless plating, sputtering, physical vapor deposition, chemical vapor deposition and micro/nano powder sintering. 
     
     
         9 . The hydrogen-oxygen electrolyzing device as defined in  claim 1  further comprises a pulse type DC power supplier with a positive pole and a negative pole thereof electrically connecting with said first conductor and said second conductor such that a pulse type DC power from said power supplier is supplied to said electrodes to stimulate water molecules between said electrodes with demodulation of said pulse type DC power such that a resonant electrolysis occurs with the water molecules in the process of electrolyzing to enhance the electrolyzing efficiency. 
     
     
         10 . The hydrogen-oxygen electrolyzing device as defined in  claim 1 , wherein said series component further comprises a plurality of insulation rods and a plurality of insulation pads; said electrodes have a plurality of holes being pierced by said insulation rods; each of said insulation rods passes through one of said insulation pads disposed between every two neighboring ones of said electrodes respectively; the respective insulation rod has a cap part pressing against one of the two outermost ones of said electrodes and an end part extending outward the outer side of the other one of said outermost electrodes is joined to another one of said insulation pads for a constant gap is formed between said every two neighboring electrodes. 
     
     
         11 . The hydrogen-oxygen electrolyzing device as defined in  claim 10 , wherein said first container further comprises a first main body and a first covering lid; said first main body has a first receiving trough being joined to said covering lid air-tightly for obtaining an airtight space in said first receiving trough; said first covering lid has a first gas outlet; said first conductor and said second conductor pass through said first covering lid with an upper end thereof extending outward said covering lid respectively. 
     
     
         12 . The hydrogen-oxygen electrolyzing device defined in  claim 11 , wherein the bottom of said first main body has a first liquid inlet communicating with said first receiving trough; said covering lid has a second liquid inlet, which is sealed with a sealing member normally, for a supplementary liquid being added into said first receiving trough at the time of said sealing member being opened. 
     
     
         13 . The hydrogen-oxygen electrolyzing device as defined in  claim 12 , wherein said first level sensor further comprises a high level sensing unit and a low level sensing unit for detecting the level height of said electrolyte. 
     
     
         14 . The hydrogen-oxygen electrolyzing device as defined in  claim 13  further comprises a second container and a pump, wherein said second container further comprises a second main body, which has a second receiving trough and a first liquid outlet communicating with said second receiving trough, and a second covering lid being joined to said second main body air-tightly for forming an airtight space in said second receiving trough; wherein said second covering lid has an gas intake port, a second gas outlet and at least a third liquid inlet, and said third liquid inlet, which is sealed with a second sealing member normally, for the supplementary liquid being added into said second receiving trough at the time of said second sealing member being opened; an inner pipe is joined to said second covering lid and disposed inside said second receiving trough to communicate with said gas intake port; a first external pipe is disposed with two ends thereof being joined to said first main body and said pump to communicate with said first main body and said pump respectively; a second external pipe is disposed with two ends thereof being joined to said second main body and said pump to communicate with said pump and said first liquid outlet; a third external pipe is disposed with two ends thereof connecting with said first covering lid and said second covering lid to communicate said first gas outlet and said gas intake port. 
     
     
         15 . The hydrogen-oxygen electrolyzing device as defined in  claim 14  further comprises a controller electrically connecting with said first level sensor and said pump, wherein said controller is capable of emitting a control signal to stop or start said pump when a sensing signal emitted by said first level sensor for indicating the liquid level in said first receiving trough being at the high or low level is detected by said controller such that the supplementary liquid stops or starts entering said first receiving trough for the level of said electrolyte in said receiving trough maintaining at a preset range. 
     
     
         16 . The hydrogen-oxygen electrolyzing device as defined in  claim 15  further comprises a pulse type DC power supplier with a positive pole and a negative pole electrically connecting with said first and second conductors respectively for a pulse type DC power being supplied to said electrodes to stimulate the water molecular between said electrodes with demodulation of said pulse type DC power such that a resonant electrolysis occurs with the water molecules in the process of electrolyzing to enhance the electrolyzing efficiency. 
     
     
         17 . The hydrogen-oxygen electrolyzing device as defined in  claim 16 , wherein said second covering lid is joined to a gas pressure sensor for detecting the gas pressure in said second receiving trough; said controller electrically connects with said gas sensor and said DC power supplier respectively to emit a control signal to stop said DC power supplier outputting voltage to said first and second conductors at the time of said gas pressure sensor issuing a message regarding the gas pressure exceeding a preset value being detected by said controller such that said electrodes stop electrolyzing the electrolytic solution and the mixture of hydrogen and oxygen is not generated any more. 
     
     
         18 . The hydrogen-oxygen electrolyzing device as defined in  claim 17 , wherein said second main body is joined to a second level sensor for detecting the liquid level of the supplementary liquid in said second receiving trough; the lower end of said internal pipe is disposed at an elevation lower than that of said second level sensor. 
     
     
         19 . The hydrogen-oxygen electrolyzing device as defined in  claim 18  further comprises a fourth external pipe with two end, and an anti backfire valve, wherein said fourth external pipes connect with said second covering lid and said anti backfire valve with the two ends thereof respectively. 
     
     
         20 . The hydrogen-oxygen electrolyzing device as defined in  claim 19 , wherein said series component further comprises a first frame, a second frame, a plurality of metal sheets and a plurality of insulation sheets, wherein said first frame, said second frame, said metal sheets and said insulation sheets have a plurality holes corresponding to each other; said holes are pierced by an insulation bolt respectively with an end of said bolt engaging with an insulation nut for said insulation sheets being clamped between said first frame and second frame; at least one of said metal sheets is disposed between two outermost ones of said metal sheets; a lateral side of the respective metal sheet contacts with the outer lateral sides of the two outermost electrodes; a lateral side of the respective insulation sheet is disposed between every two neighboring electrodes such that the edges of said electrodes are secured in a state of being parallel to each other. 
     
     
         21 . The hydrogen-oxygen electrolyzing device as defined in  claim 20 , wherein said electrolyzing structure provides said serial cell; said first and second frames have a groove corresponding to each other; said first conductor fits with said groove in said first frame; said second conductor fits with said groove in said second frame; said first conductor contacts with said metal sheets near said first frame; said second conductor contacts with said metal sheets near said second frame. 
     
     
         22 . The hydrogen-oxygen electrolyzing device as defined in  claim 21 , wherein the edges of said two outermost electrodes are clamped between one of said metal sheet and one of said insulation sheets neighboring said outermost electrodes respectively, and the edges of the remaining electrodes are clamped between every two neighboring insulation sheets. 
     
     
         23 . The hydrogen-oxygen electrolyzing device as defined in  claim 20 , wherein said electrolyzing structure provides a plurality of said serial cells to form a structure of serial elongation with said serial cells electrically connecting with each other; said first frame has a first groove and said second frame has a second groove corresponding to each other respectively; said first conductor fits with said first groove of one of the two outermost ones of the first frames and contacts with one of said metal sheets next to said outermost frame; said second conductor fits with said second groove of said second frame; said first conductor contacts with said metal sheets near said first frame; said second conductor fits with said second groove of the other outermost series component and contacts with one of said metal sheets near said second frame. 
     
     
         24 . The hydrogen-oxygen electrolyzing device as defined in  claim 23 , wherein said first groove and said second groove at every neighboring first frame and second frame corresponding to each other for fitting a “U”-shaped third conductor respectively. 
     
     
         25 . The hydrogen-oxygen electrolyzing device as defined in  claim 20 , wherein said electrolyzing structure provides a plurality of said serial cells to form a structure of parallel extension with the same one of said metal sheets being disposed between and contacting with every two neighboring first frames and every two neighboring second frames; said first frame and said second frame each have a groove corresponding to each other; said first conductor fits with said first groove of one of the two outermost ones of the first frames and contacts with one of said metal sheets next to said outermost frame; said second conductor fits with said second groove of said second frame; said first conductor contacts with said metal sheets near said first frame; said second conductor fits with said second groove of the other outermost serial cell and contacts with one of said metal sheets near said second frame. 
     
     
         26 . The hydrogen-oxygen electrolyzing device as defined in  claim 25 , wherein the two lateral sides of the first and second frames of each of said serial cells contact said metal sheets and said insulation sheets respectively; the same one of said metal sheets or said insulation sheets is disposed between and contacts every two neighboring ones of said first frames; the same one of said metal sheets or said insulation sheets is disposed between and contacts every two neighboring ones of said second frames; said first conductor and said second conductor contact said outermost serial cells respectively. 
     
     
         27 . The hydrogen-oxygen electrolyzing device as defined in  claim 1  further comprises three electrolyzing structures and an AC frequency-changeable driver; wherein said AC frequency-changeable driver has three positive output ends coupling the respective first conductor of said electrolyzing structures, and three negative output ends coupling the respective second conductor of said electrolyzing structures so as to form a “Y”-shaped arrangement such that said three positive output ends control alternate DC power supplying to said respective first conductor and said three electrolyzing structures electrolyze the electrolyte in said first container for generating the hydrogen and the oxygen. 
     
     
         28 . The hydrogen-oxygen electrolyzing device as defined in  claim 27 , wherein said AC frequency-changeable driver further comprises a three-phase full wave rectifier, a conductor, a capacitor and six insulated gate bipolar transistors (IGBT), which couple with each other, such that a three-phase power source is input to said three-phase full wave rectifier to be rectified and output DC voltage to said inductor and said capacitor respectively, said DC voltage is filtered with said inductor and said capacitor before passing said six insulated gate bipolar transistors, and said six insulated gate bipolar transistors circularly control the current outputting via said three positive output ends. 
     
     
         29 . A carbon paper electrode with both outer surfaces being changed in material for a hydrogen-oxygen electrolyzing device being capable of producing hydrogen and oxygen comprising:
 a carbon paper substrate having a first surface and a second surface being disposed oppositely to each other;   a first metal layer being joined to said first surface; and   a second metal layer being joined to said second surface.   
     
     
         30 . The carbon paper electrode with both outer surfaces being changed in material as defined in  claim 29 , wherein said first and second metal layers are made with a plurality of micro metal particles respectively. 
     
     
         31 . The carbon paper electrode with both outer surfaces being changed in material as defined in  claim 30 , wherein the gradient of the respective micro metal particle is one of nickel, nickel compound, platinum, platinum compound, rhodium, rhodium compound, cobalt, cobalt compound, iron, iron compound, palladium and palladium compound, or one of mixtures of the preceding metals or metal compounds. 
     
     
         32 . The carbon paper electrode with both outer surfaces being changed in material as defined in  claim 30 , wherein said first metal layer and said second metal layer each have a first inner metal layer, a second inner metal layer, a first outer metal layer and a second outer metal layer respectively; said first inner metal layer is disposed between said first surface and said first outer metal layer; said second inner metal layer is disposed between said second surface and said second metal layer. 
     
     
         33 . The carbon paper electrode with both outer surfaces being changed in material as defined in  claim 32 , wherein said metal particles at said first inner metal layer provides a density greater than that at said first outer metal layer; said metal particles at said second inner metal layer provides a density greater than that at said second outer metal layer. 
     
     
         34 . The carbon paper electrode with both outer surfaces being changed in material as defined in  claim 32 , wherein each of said micro metal particles has a diameter in a range 15˜30 μm. 
     
     
         35 . The carbon paper electrode with both outer surfaces being changed in material as defined in  claim 33 , wherein said micro metal particles are coated on the first and second surfaces of said carbon paper substrate with one of following ways: electroless plating, sputtering, physical vapor deposition, chemical vapor deposition and micro/nano powder sintering.