JP2009114487A - Electrolytic device using electrolysis and gas liquid separation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrolytic device using electrolysis in which the large amount of gas is efficiently produced for a long time. <P>SOLUTION: A positive electrode 12 and a negative electrode 13 are immersed in an electrolytic cell 10 charged with an electrolyte, and DC alternating voltage is applied between both electrodes 12, 13. A plurality of intermediate electrodes 14 are arranged between both electrodes 12, 13. The electrolytic cell 10 is sealed with a sealing cover 18 and the gas produced by the electrolysis is discharged from a discharge port 19 provided on the sealing cover 18. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electrolysis apparatus using electrolysis and a gas-liquid separation apparatus therefor, in particular, an improved electrolysis apparatus for generating a mixed gas obtained using electrolysis as an industrial gas, and a gas-liquid separation apparatus therefor It is about.

  A technique in which water is electrolyzed to generate a large amount of a mixed gas of hydrogen and oxygen, that is, a brown gas, in a short time and used in a melting furnace or a combustion furnace is already known as Patent Document 1. In addition, a brown gas generator that realizes such a technology is also available. E. S. T.A. KOREA CO. , LTD. The company's Brown gas generator is known. (Www.browngas.com)

  Further, Patent Literature 2 or Patent Literature 3 is known as a gas generator suitable for such Brown gas or electrolysis gas, and an electrolytic cell, a positive electrode, a negative electrode, and an intermediate electrode disposed between both electrodes. The structure of is also known.

Japanese Patent No. 3130014 JP 2004-137528 A JP 63-303087 A

  Conventionally proposed electrolysis gas generators (electrolyzers) have a problem in that sufficiently satisfactory efficiency cannot be obtained. As a result, the apparatus is generally large and heavy.

  Further, in the electrolyzer proposed in the past, for example, when water is electrolyzed, the generated mixed gas of hydrogen and oxygen is taken out as a mixed state of gas and liquid at the beginning of generation. There is a problem that it is not used as an industrial gas.

  An object of the present invention is to provide an electrolyzer capable of efficiently and continuously generating a large amount of gas generated by electrolysis by a combination of new mechanisms.

  Another object is to provide a gas-liquid separator that can effectively separate a liquid from a gas generated in an electrolyzer utilizing electrolysis.

  A first invention is an electrolysis apparatus using electrolysis, in which an electrolytic cell filled with an electrolytic solution, a positive electrode and a negative electrode immersed in the electrolytic solution in the electrolytic cell, and both electrodes between the two electrodes A plurality of intermediate electrodes that are divided and received by dividing the voltage between both electrodes, a power supply device that applies a DC alternating voltage to both electrodes, and the electrolytic cell is sealed and electrically And a sealing lid having a discharge port for discharging the gas generated by the decomposition.

  Moreover, it can have a cooling device including a cooling coil provided in contact with the electrolytic cell and cooling the electrolytic solution in the electrolytic cell.

  In addition, it is possible to have a sedimentation chamber in the lower part of the electrolytic cell for depositing foreign substances generated by electrolysis or mixed dust.

  A flow path connecting the settling chamber and the electrolytic cell; a pump provided in the flow channel; for flowing an electrolytic solution from the settling chamber to the electrolytic cell; and provided in the flow channel and included in the electrolytic solution. A filter for removing the foreign matter or the dust can be provided.

  According to a second aspect of the present invention, there is provided a gas-liquid separation apparatus for an electrolysis apparatus utilizing electrolysis, wherein the first gas-liquid separation is connected to the electrolysis apparatus utilizing electrolysis and separates a liquid component from the gas generated in the electrolysis apparatus. And a second gas-liquid separator connected in series to the first gas-liquid separator and further separating a liquid component from the gas, the first gas-liquid separator being configured such that the gas is directed from the lower part to the upper part. A plurality of baffle plates having a gap through which gas flows between a part thereof and an inner wall of the first separation chamber; The second gas-liquid separation device is a double cylinder composed of an outer cylinder and an inner cylinder, a second separation chamber whose upper part is closed, and a tip inserted into the cylinder from the outer cylinder and provided at the tip. The gas is ejected from the horizontal hole so as to descend spirally along the inner surface of the outer cylinder. A jet pipe that is inserted into the said inner cylinder, characterized in that it comprises an extraction tube end at the top of the inner cylinder to extract gas therefrom is opened, the.

  In addition, the second gas-liquid separation device is provided in a pipe line that connects the lower part of the second separation chamber and the electrolysis device to return the liquid component separated from the gas to the electrolysis device, from the electrolysis device. It can also have a check valve that blocks the flow of fluid toward the second separator.

  According to the electrolysis apparatus of the first invention, a gas generated by electrolysis can be efficiently and continuously generated in a large amount by a combination of new mechanisms.

  Moreover, according to the gas-liquid separation apparatus of 2nd invention, a liquid can be effectively isolate | separated from the gas which generate | occur | produced with the electrolysis apparatus using electrolysis.

  In addition, the separated liquid can be effectively returned to the electrolysis apparatus again, and continuous operation can be performed with little maintenance over a long period of time.

  FIG. 1 shows a schematic configuration of a preferred first embodiment of an electrolysis apparatus according to the present invention. In the present embodiment, a combustion gas generator that generates combustion gas is taken as an example of an electrolysis apparatus, and this apparatus will be described.

  The electrolytic bath 10 is filled with an electrolytic solution 11 such as sodium hydroxide or potassium hydroxide, and a positive electrode and a negative electrode are immersed in the electrolytic solution 11. In the present embodiment, the positive electrode 12 is made of a metal electrode rod fixed substantially at the center of the electrolytic cell 10, while the negative electrode 13 is also used by the electrolytic cell 10 itself.

  In the electrode structure according to the present invention, a plurality of intermediate electrodes 14 are disposed between the positive electrode 12 and the negative electrode 13, and the plurality of intermediate electrodes 14 are insulated from both the electrodes 12, 13, The electrodes 14 themselves are arranged so as to be insulated from each other. As a result, the DC voltage applied between the positive electrode 12 and the negative electrode 13 is divided by each intermediate electrode 14.

  In order to apply a voltage for electrolysis between the electrodes 12 and 13, a power supply device 15 is connected between the electrodes.

  In the present invention, the power supply device 15 applies a DC alternating voltage to both electrodes 12 and 13. The power supply device 15 according to the present invention supplies not only a continuous DC voltage but a pulsed DC alternating voltage to the electrodes 12 and 13, thereby increasing the supply voltage and the current flowing in the electrolyte 11. The density can be increased.

  According to the present invention, the electrolytic solution 11 can be efficiently electrolyzed by the combination of the electrode arrangement of the positive electrode 12, the negative electrode 13, and the intermediate electrode 14 described above and the power supply device 15 that applies the DC alternating voltage. Is possible.

  As is well known, in the electrolysis of water, for example, a phenomenon occurs in which a product generated from an electrolytic solution adheres to an electrode and the electrolysis is rapidly attenuated.

  For this reason, in the past, improvements such as providing an external pump to forcibly circulate the electrolyte solution 11 have been performed. However, in such a forced circulation system, energy is lost for circulation, There was a problem that the overall efficiency was significantly reduced.

  In order to solve such a problem, the present embodiment is characterized in that a natural circulation type cooling device is installed in the electrolytic cell.

  In FIG. 1, the cooling device is denoted by reference numeral 16, includes cooling fins 17 connected to the upper and lower ends of the electrolytic cell 10, and the electrolytic solution 11 in the electrolytic cell 10 is naturally circulated in the cooling fins 17 so as to electrolyze the electrolytic cell. Cooling outside 10 and returning it back to the electrolytic cell 10 keeps the liquid temperature optimal, and the electrolytic substance adheres to the periphery of the electrode 12 or 13 to lower the electrolysis function. Can be reliably prevented.

  Of course, in this invention, it is also possible to use another forced circulation, without performing the natural circulation by such a cooling device 17. FIG.

  When a DC alternating voltage is applied between the electrodes 12 and 13, the combustion gas generator according to the present invention immediately generates a mixed gas of hydrogen and oxygen. In order not to let this mixed gas escape to the atmosphere, a sealing lid 18 is fixed and arranged in the airtight state in the electrolytic cell 10 to seal the electrolytic cell. The sealing lid 18 is provided with a discharge port 19, and a mixed gas generated by electrolysis is guided to the outside through the discharge port 19.

  In the present invention, the generation of the mixed gas is performed very quickly, and the generation of the mixed gas by electrolysis is started within one minute from the power-on, and this gas generation continues and a large amount of the mixed gas is continuously generated. be able to. Since the generation of gas is rapid, the mixed gas is guided to the outside from the outlet 19 in a foamed mixed state with the electrolyte. Therefore, since it cannot be used as a combustion gas in the gas-liquid mixed state as it is, in the present invention, at least two stages of gas-liquid separators 20 and 21 are connected in series in order to separate the liquid component from the mixed gas. . The liquid separated from the gas-liquid separators 20 and 21 is returned to the electrolytic cell 10 via the return path 22.

  Therefore, according to the present invention, even when the apparatus is continuously operated, the electrolyte is hardly reduced. If only the decomposed water is supplied as the mixed gas, the generation of the mixed gas is continued. It becomes possible.

  FIG. 2 shows a main part of the combustion gas generator further embodied in the first preferred embodiment of the present invention shown in FIG.

  In this embodiment, the electrolytic cell 10 is made of a vertically long bottomed cylindrical metal body and also serves as the negative electrode 13. In the embodiment, the electrolytic bath 10 is filled with an electrolytic solution 11 such as sodium hydroxide, and the positive electrode 12 is immersed in the electrolytic solution 11 and fixed in the electrolytic bath 10. The positive electrode 12 is made of a metal cylinder and is integrally coupled to the electrode terminal 24 via a flange 23 at the upper end thereof.

  In order to fix and arrange the positive electrode 12 in the electrolytic cell 10, an upper fixing plate 25 and a lower fixing plate 26 are arranged above and below the positive electrode 12 in the electrolytic cell 10.

  3 and 4A show details of the upper fixing plate 25 and the lower fixing plate 26 of the positive electrode 12 shown in FIG. 2, and these fixing plates 25 and 26 are used for arranging the electrodes in an insulated state. Further, it is made of an insulating material such as plastic, Teflon (registered trademark), or ceramic.

  A through hole 27 through which the electrode terminal 24 of the positive electrode 12 passes is provided in the center of the upper fixing plate 25, and a flange 23 that couples the positive electrode 12 and the electrode terminal 24 is provided on the bottom surface of the upper fixing plate 25. Is provided, and the positive electrode 12 and the upper fixing plate 25 are integrally and firmly coupled to each other. The upper fixing plate 25 is provided with six elongated holes 29 along the radial direction at equal intervals, and a mixed gas of hydrogen and oxygen generated by electrolysis through the elongated holes 29 is mixed with the electrolyte to form a bubble. Is discharged to the upper part of the electrolytic cell 10.

  On the other hand, the lower fixing plate 26 is also made of an electrical insulating material, and the lower end of the positive electrode 12 is supported by a ring-shaped electrode support groove 30 provided on the upper surface.

  In addition, a through hole 31 is provided in the center of the lower fixing plate 26, and further, electrolysis in the electrolytic cell 10 is performed by a plurality of small through holes 32 that pass through the lower fixing plate 26 and are provided radially in the radial direction. The liquid 11 can move through the lower fixing plate 26.

  As is clear from FIG. 4A, the back surface of the lower fixing plate 26 is provided with six streaks 33 provided radially in the radial direction to facilitate the movement of the electrolyte solution 11 and to be generated by electrolysis. Foreign matter or mixed dust can be collected in the groove 33.

  Such a lower fixing plate 26 is placed on the disk-shaped scissors 34 disposed at the bottom of the electrolytic cell 10, and in this state, a part of the groove 33 is the lower fixing plate. 26 extends to the side of 26, and an opening 35 is formed to form a conduit to a cooling device to be described later.

  FIG. 4B is a cross-sectional view of the lower fixing plate 26. As is apparent from this figure, the small through hole 32 has a substantially conical cross section. Specifically, the diameter r1 of the small through hole 32 formed on the upper surface of the lower fixing plate 26 is larger than the diameter r2 of the small through hole 32 formed on the lower surface of the lower fixing plate 26. By forming the small through-hole 32 in such a shape, foreign matters generated by electrolysis or mixed dust etc. pass through the small through-hole 32 and easily move from the upper side of the lower fixing plate 26 to the lower side. At the same time, the movement from the lower side to the upper side of the lower fixing plate 26 can be suppressed.

  In the present embodiment, the negative electrode 13 is handled by the electrolytic cell 10 itself, and a DC alternating voltage is applied between the negative electrode 13 and the positive electrode 12.

  The applied voltage at this time is arbitrarily selected from 6 to 200 volts, and the current flowing through the electrolyte 11 at this time reaches 10 to 400 amperes.

  In the present invention, the alternating frequency of the applied voltage is set to 1 Hz to 40 kHz.

  Therefore, according to the present invention, a high voltage and a high current can be applied between the positive electrode and the negative electrode 12 and 13, and an extremely efficient electrolysis can be continuously performed. As a result, it is possible to reduce the size and weight.

  When the above-described high voltage and high current are simply applied between the positive electrode and the negative electrode 12, 13, rapid electrolysis causes local intense electrolysis in the electrolyte, resulting in a non-uniform region in the electrolyte 11. As a result, the electrolysis efficiency is lowered as a whole.

  In the present invention, in order to prevent the occurrence of such uneven distribution, a plurality of intermediate electrodes 14 are provided between the positive electrode 12 and the negative electrode 13, that is, the electrolytic cell 10, and electrolysis is performed in the electrolytic cell 10. It is possible to carry out uniformly in the inside.

  2 to 4, this intermediate electrode is denoted by reference numeral 14, and in this embodiment is formed as a plurality of metallic concentric cylinders. As shown in detail in FIGS. 3 and 4, these plurality of intermediate electrodes are fitted into a plurality of intermediate electrode support grooves 40, 41 provided on the bottom and top surfaces of the upper fixing plate 25 and the lower fixing plate 26, respectively. Thus, the plurality of intermediate electrodes 14 in the electrolytic cell 10 are disposed in the electrolytic cell 10 in a state of being insulated from each other in the positive electrode 12, the negative electrode 13, and the intermediate electrodes 14.

  By disposing a plurality of intermediate electrodes 14, the electrolyte solution 11 is separated between adjacent electrodes, and the applied voltage is also divided for each separated electrode pair, so that rapid electrolysis occurs locally. This can be prevented and a stable electrolysis action can be obtained over the entire area of the electrolytic solution 11.

  As described above, according to the present invention, efficient electrolysis can be performed and a mixed gas of a large amount of hydrogen and oxygen can be continuously generated. Further, in order to improve the efficiency of electrolysis For this, it is effective to provide a cooling device in the gas generator.

  That is, according to the experiments by the present inventors, when sodium hydroxide is used as the electrolytic solution, the temperature of the electrolytic solution can be set to approximately 50 to 80 ° C. in order to perform the most efficient electrolysis. It has been determined that it is suitable.

  For this purpose, in the present embodiment, an air-cooling cooling device 16 by natural circulation is provided outside the electrolytic cell 10.

  Further, according to the natural circulation type cooling device 16, the electrolytic solution 11 is sequentially moved in the electrolytic cell 10, and by this natural circulation, the product generated at the time of electrolysis adheres to the electrodes 12, 13 and the electric It was possible to reliably prevent the degradation effect from being lowered.

  In this cooling device, basically, two flat fins 42 and 43 are arranged in parallel on the outer periphery of the electrolytic cell 10, and lead paths 44 a, 44 b, 45 a and 45 b are formed at the upper end between the electrolytic cell 10. In addition, the downward direction is similarly connected by the guiding paths 46a, 46b, 47a, 47b. Opposite to these conducting paths, openings 48 and 49 are provided in the electrolytic cell 10, and the electrolytic solution 11 in the electrolytic cell 10 is guided from the upper part to the cooling fins 42 and 43, and from each fin 42 and 43 to the electrolytic cell. Thus, a natural circulation type water-cooled cooling path that flows toward the lower part of 10 can be formed.

  In the present invention, the cooling device 16 is not necessarily essential, and even when the cooling device 16 is not provided, it was possible to obtain a sufficiently good electrolysis effect as compared with the prior art, but this cooling device 16 is provided. Thus, the above-mentioned optimum temperature condition can be maintained, and the double effect that the electrolysis efficiency is not lowered by the circulation of the electrolyte solution 11 can be obtained, and the usefulness as an apparatus can be remarkably improved.

  Although any number of the intermediate electrodes 14 can be arranged, according to the size of the electrolytic cell 10, the distance between the electrodes is set to 1 mm to 20 mm in the present embodiment.

  In the present invention, it has been useful to obtain an efficient electrolysis by placing the alternating frequency of the DC alternating voltage in a proportional relationship with respect to the distance between the electrodes.

  That is, as the inter-electrode distance increases, the alternating frequency is increased, whereby the electrolysis efficiency can be maintained at the optimum value.

  In this way, as described above, there is a great advantage that the temperature of the cooling device 16 is maintained at an optimum value and chemical substances that inhibit electrolysis do not stay around the electrode due to the action of the cooling device 16.

  As described above, according to the present invention, electrolysis is performed at a high voltage and a high current, and a large amount of gas can be generated efficiently and continuously. In this state, the liquid cannot be used as a combustion gas. In the present invention, such a gas-liquid mixed gas is statically gas-liquid separated without applying external power, and the combustion gas can be taken out efficiently.

  For this purpose, in the present invention, there is provided a gas-liquid separator connected in series in at least two stages for separating from a liquid component from a mixed gas of hydrogen and oxygen generated from the electrolytic cell 10.

  In the present embodiment, the first-stage gas-liquid separator is disposed on the upper part of the electrolytic cell 10. This first gas-liquid separator is for separating the mixed gas generated in the electrolytic cell 10 in the form of bubbles and the electrolytic solution, and has a bottomed cylindrical plastic separation chamber 49 shown in FIG. The separation chamber 49 has a through hole 50 in the center, and the electrode terminal 24 of the positive electrode 12 described above passes through the through hole 50.

  The separation chamber 49 is divided into six chambers, and a partition wall 51 is provided between the chambers. Each partition wall 51 is provided with a plurality of openings 52, and the bottom of the separation chamber 49 is provided with an opening 53 for each chamber as shown in FIG.

  A separation lid 54 made of an insulating material seals the upper surface of the separation chamber 49 to seal the separation chamber 49, and a mixed gas from which many liquid components have been removed is taken out from an opening 55 provided in the separation lid 54. It is.

  As is clear from FIG. 2, a sealing lid 18 that seals the electrolytic cell 10 is fixed to the upper portion of the separation lid 54, and the electrolytic cell 10 is discharged from the discharge port 19 provided at a position that coincides with the opening 55. The mixed gas will be taken out.

  The arrows in FIG. 6 indicate the paths through which the gas-liquid mixture guided to the first gas-liquid separation chamber 49 is taken out from the discharge port 19 through the openings 52 of the respective partition walls 51. It is understood that the direction of the liquid mixture is dispersed, and the liquid component falls into the electrolytic cell 10 from the bottom of the separation chamber 49, so that gas-liquid separation is effectively performed.

  The electrode terminal 24 of the positive electrode 12 mentioned above penetrates the sealing lid 18 and protrudes upward, and is firmly fixed to the sealing lid 18 by a closing nut 56, and an O-ring or the like is provided between the electrode terminal 24 and the sealing lid 18. The airtight stopper 57 used is airtightly closed.

  As described above, the first gas-liquid separation device is provided in the upper part of the electrolytic cell, but in this embodiment, the multi-stage gas-liquid separation device is further arranged in a plurality of stages outside the electrolytic cell 10. ing.

  FIG. 7 shows the overall configuration of the present embodiment, which can be immediately subjected to combustion from the final outlet 58 by the five-stage gas-liquid separation provided outside the electrolytic cell 10. It becomes possible to obtain a dry mixed gas.

  In FIG. 7, the gas-liquid separator disposed outside the electrolytic cell 10 includes a second gas-liquid separator 60, a third gas-liquid separator 61, a fourth gas-liquid separator 62, and a fifth gas-liquid separator 63. The mixed gas is led from the electrolytic cell 10 to the final outlet 58 through this order.

  FIG. 8 shows a preferred example of the second gas-liquid separator 60 in the present embodiment.

  A second gas-liquid separation chamber 64 is fixed on the sealing lid 18 of the electrolytic cell 10 according to the discharge port 19. The separation chamber 64 has a substantially cylindrical shape, and a plurality of baffle plates 65 are arranged on the upper portion thereof, and a conduit 66 is provided on the upper side wall thereof.

  FIG. 9 shows a schematic view of the baffle plate 65 provided in the second gas-liquid separation chamber 64, and the outer circumference of each baffle plate 65 is fixed to the inner wall of the second gas-liquid separation chamber 64. Part 65a is bent downward, and a gap 67 is provided between the second gas-liquid separation chamber 64, and the mixed gas sequentially rises toward the conduit 66 from this gap. As described above, the temperature of the mixed gas is discharged from the electrolytic cell 10 at about 65 ° C., but the second gas-liquid separation chamber 64 is kept at a substantially normal temperature. As a result, the high-humidity mixed gas is not disturbed. The liquid is separated from the mixed gas by being cooled by the plate 65.

  In addition, the second gas-liquid separation device 60 is characterized in that an explosion-proof mechanism is provided on the separation chamber 64. This explosion-proof mechanism is shown in detail in FIG. 10 and comprises an outer ring 68 fixed to the upper part of the second gas-liquid separation chamber 64 and an inner ring 69 screwed to the outer ring. A thin metal plate 71 is sandwiched between the rings 68 and 69 via an O-ring 70. Therefore, according to this explosion-proof mechanism, the thin metal plate 71 normally seals the second gas-liquid separation chamber 64 in a secret manner, but when pressure is applied from either direction of the thin metal plate 71. The metal thin plate is detached or broken at a predetermined pressure or higher, and the pressure in the second gas-liquid separation chamber 64 can be released to the outside. In the case of a mixed gas of hydrogen and oxygen, both an explosion of hydrogen and a so-called implosion phenomenon in which hydrogen and oxygen react to return to water occur, and in the case of an explosion, the metal thin plate 71 is torn outward and explodes. In the case of contraction, on the other hand, it breaks inward to equalize the pressure. In any case, explosion or implosion can be effectively absorbed in the second gas-liquid separation chamber 64. It should be noted that the metal thin plate 71 can be easily broken by being slightly scratched.

  In FIG. 8, one end of a water injection pipe 72 is fixed to the lower side wall of the second gas-liquid separation chamber 64, and a water injection lid 73 is provided at the other end. In the present invention, each of the multistage gas-liquid separators functions to return the separated liquid to the electrolytic cell 10, and for this purpose, the gas generator is operated for a long time to generate a large amount of mixed gas by electrolysis. However, the electrolyte does not leak to the outside. For this reason, according to the present invention, only the water needs to be replenished from the outside, and the necessary water is replenished by the water injection pipe 72 shown in FIG.

  FIG. 11 shows the third gas-liquid separator 61, in which the separation chamber 74 has a double cylindrical shape, and its upper portion is closed. A thin extraction tube 76 is inserted into the inner cylinder 75, and one end of the extraction tube 76 is opened at the upper portion of the inner cylinder 75. The lower end of the outer cylinder 77 of the separation chamber 74 is a funnel-like thin tube, and the thin tube 77a is connected to the electrolytic cell 10 through cooling fins as shown in FIG. On the other hand, at the upper part of the outer cylinder 77, the tip of the conduit 66 is opened through a restriction 78, and a mixed gas is ejected from the restriction into the outer cylinder 77, and this mixed gas is extracted through the inner cylinder 75. The liquid is further separated from the mixed gas in the process of reaching the pipe 76 and returned to the electrolytic cell 10.

  The fourth gas-liquid separation device 62 is a device for dehumidifying the mixed gas, and as shown in FIG. 12, a spiral dehumidification tube 80 is connected to the tip of the extraction tube 76. A cooling fan 82 is provided above the dehumidifying pipe 80, and the mixed gas is dehumidified in the dehumidifying pipe 80, and the generated liquid is discharged from the drain pipe provided in the mixed gas passage to the electrolytic cell 10. Returned to

  FIG. 13 shows another embodiment of the fourth gas-liquid separator 62. In this embodiment, the dehumidifying tube 80 is bent close to a rectangular shape unlike the embodiment of FIG. Consists of. Similarly to the circular dehumidifying tube 80 shown in FIG. 12, the dehumidifying tube 80 shown in FIG. 13 is supplied with cold air by a cooling fan to perform a desired dehumidifying action.

  FIG. 14 shows a fifth gas-liquid separator 63 according to an embodiment of the present invention, the structure of which is similar to that of the third gas-liquid separator, and a double cylinder composed of an outer cylinder 81 and an inner cylinder 82 and an extraction pipe 83. The dehumidified liquid is returned to the electrolytic cell 10 from the thin tube 81a.

  The fifth gas-liquid separator 63 is different from the third gas-liquid separator 61 in that the tip of the dehumidifying tube 80 is inserted into the cylinder from the outer cylinder 81, and from the horizontal hole 80 a provided at the tip of the dehumidifying tube 80. The mixed gas is jetted slightly downward along the inner surface of the outer cylinder 81. As a result, the mixed gas moves in the outer cylinder 81 while being spirally lowered as shown in the drawing, and further, the inner cylinder 82 is moved. It is guided to the extraction pipe 83 through the passage. Therefore, this structure makes it possible to obtain a mixed gas with a high degree of dryness.

  FIG. 15 shows a sixth gas-liquid separation device 59, the structure of which is similar to that of the second gas-liquid separation device, but the gas inlet is provided in the upper part of the separation chamber 88 and the mixed gas is discharged from the lower part. Unlike the second gas-liquid separator, FIG. 15 shows an inlet pipe 83 and an outlet pipe 84. Due to such a difference in the entrance / exit path position, the bent portion 86 of the baffle plate 85 is directed upward in the sixth gas-liquid separator 59. Similarly to the second gas-liquid separator, an explosion-proof mechanism 87 is provided above the gas-liquid separator chamber 85 in the sixth gas-liquid separator. The liquid component discharged from the sixth gas-liquid separator 59 is also returned to the electrolytic cell 10 through the cooling fin.

  As described above, by using the multistage gas-liquid separation device, the discharged mixed gas is kept at a very high dryness, and can be immediately used as a combustion gas as it is.

  16, 17, and 18 show an embodiment suitable for mounting the combustion gas generation device according to the present invention on the vehicle, and basically a rectangular box shape is configured.

  Even in the second embodiment, in principle, it is exactly the same as the first embodiment, but by adopting a rectangular box shape, for example, it can be placed in the engine room instead of an in-vehicle battery, There is an advantage that the space utility at the time of vehicle mounting is higher than the cylindrical shape as in the first embodiment.

  The electrolytic cell 100 also serves as a negative electrode, and a DC alternating voltage is applied to the positive electrode 101 from the power supply device 116. A plurality of rectangular intermediate electrodes 102 are disposed in the electrolytic cell 100.

  A plurality of cooling fins 105 and 106 are provided on both sides of the electrolytic cell 100, whereby the temperature of the electrolytic solution is maintained in an optimum state of 50 to 80 ° C., and the electrolytic solution is naturally circulated by electrolysis. The product is prevented from staying around the electrode and hindering the action of electrolysis.

  Further, drainage is performed from the bottom of the electrolytic cell 100 through the water distribution pipe 107 when necessary, and dust collected at the bottom of the electrolytic cell 100 at this time can be removed. A first gas-liquid separator 108 is placed on the top of the electrolytic cell 100. The first gas-liquid separator 108 is also divided into a plurality of small rooms by the partition 109, and performs gas-liquid separation when the foam-like mixed gas generated by electrolysis passes through each room, and discharges the mixed gas.

  The first gas-liquid separation device includes a separation chamber 110 and a separation lid 111. On the separation lid 111, a sealing lid 112 for sealing the electrolytic cell 100 in a secret manner is further provided. A liquid separation device 113 is fixed. An explosion-proof device 114 is provided at the upper part of the second gas-liquid separator 113, and a water injection pipe 115 is connected to the lower part thereof.

  In the second embodiment, only a two-stage gas-liquid separator is shown, but it is also possible to connect a multi-stage gas-liquid separator similarly to the first embodiment.

As described above, according to the present invention, electrolysis can be performed at a high voltage and high current, and a large amount of a mixed gas of hydrogen and oxygen can be continuously generated. For this reason, the apparatus can be made small and light, and can be used as a vehicle-mounted or mobile combustion gas generator.

  Next, another cooling device 120 according to the present invention will be described. FIG. 19 is a schematic explanatory diagram illustrating a cooling device 120 according to the third embodiment.

  The cooling device 120 is provided in contact with the electrolytic cell 10 and has a cooling coil 122, a circulation pump 124 for flowing a cooling liquid, a heat radiating means described later, and a tank 128 for storing the cooling liquid, and these are circulation channels. 123 are connected in order. The coolant is water, but is not limited to this and can be oil. The cooling coil 122 is disposed so as to surround the outer periphery of the electrolytic cell 10. The heat dissipating means is a radiator 125, a heat dissipating channel 126, and an air conditioner 127. These heat radiating means are respectively connected in parallel to the circulation flow path 123 and can be switched by a valve 129. These heat radiating means are provided in, for example, a greenhouse, radiate heat from the heat radiating means into the greenhouse, and warm the house. On the other hand, the cooling coil 122 removes heat from the electrolytic cell 10 to cool the electrolytic solution in the electrolytic cell 10. According to the cooling device 120, the electrolytic solution in the electrolytic cell 10 can be effectively cooled. Further, since the cooling coil 122 has a structure with excellent vibration resistance, it can be mounted in a place with a lot of vibration, for example, an automobile.

  FIG. 20 is a schematic explanatory view showing a precipitate removing device 130 in the third embodiment. A sedimentation chamber 131 is provided at the bottom of the lower fixing plate 26 disposed below the electrolytic cell 10 to deposit and accumulate foreign matters generated by electrolysis or mixed dust. A sediment removing device 130 connects the sedimentation chamber 131 and the electrolytic cell 10. Specifically, the deposit removing device 130 includes a filter 132 that removes foreign matters or dust contained in the electrolytic solution 11, and a pump 133 that flows the electrolytic solution 11 from the precipitation chamber 131 to the electrolytic cell 10. The flow paths 134 are connected in order. Both ends of the flow path 134 are connected to the connection port 131a of the sedimentation chamber 131 and the connection port 10a of the electrolytic cell 10, respectively. According to this configuration, since the sediment deposited in the sedimentation chamber 131 is removed by the filter 132, the frequency of cleaning work in the electrolytic cell 10 or replacement work of the electrolytic solution 11 can be reduced.

  In the first embodiment described above, it has been described that a DC alternating voltage is applied between the positive electrode 12 and the negative electrode 13, that is, the electrolytic cell 10. However, if this electrolysis is continued, the product produced during electrolysis adheres to the electrodes 12 and 13 and reduces the electrolysis action. Therefore, as will be described below with reference to the drawings, switching between positive and negative electrodes prevents the degradation of electrolysis.

  FIG. 21 is a schematic explanatory view showing a positive / negative electrode switching device 140. The switching device 140 includes a changeover switch 141 that has two contacts and switches circuits, and a controller 142 that outputs a changeover command to the changeover switch 141. The circuit state shown in the figure is a state when the positive electrode 12 is a positive electrode and the negative electrode 13 is a negative electrode. When the changeover switch 141 switches the contacts in response to a command from the controller 142, the voltage applied between the electrodes 12 and 13 is reversed between positive and negative. That is, the positive electrode 12 becomes a negative electrode, and the negative electrode 13 becomes a positive electrode. In this way, the voltage applied between the electrodes 12 and 13 is reversed between positive and negative by the switching device 140, so that the generated substance attached to the electrodes 12 and 13 can be separated from the electrodes 12 and 13. As a result, it is possible to reliably prevent the degradation of the electrolysis function caused by continuing the electrolysis.

  In each embodiment mentioned above, although the case where the electrolysis apparatus electrolyzed the potassium hydroxide or sodium hydroxide which is the electrolyte solution 11 and generate | occur | produced the mixed gas of hydrogen and oxygen was demonstrated, it is not limited to this. The electrolyte solution 11 can also be diluted sulfuric acid or salt water (seawater). Electrolysis of dilute sulfuric acid generates a mixed gas of hydrogen sulfide and oxygen, and electrolysis of salt water generates a mixed gas of hydrogen chloride and oxygen. These mixed gases can be used not as combustion gases but as other industrial gases. Naturally, according to the electrolyzer according to the present invention, as long as there is a demand, it is possible to generate a large amount of gas efficiently and immediately, and it can be used immediately as an industrial gas.

  22, 23, and 24 show a preferred embodiment of a gas-liquid separator connected to a combustion gas generator according to the present invention.

  In this fourth embodiment, the principle is exactly the same as in the first embodiment. However, six gas-liquid separators as in the first embodiment are provided by connecting two gas-liquid separators in series. There is an advantage that the space utility is higher than when the liquid separators are connected in series.

  The gas-liquid separator in this embodiment is configured by connecting a seventh gas-liquid separator 151 and the above-described fifth gas-liquid separator 63 in series. The mixed gas is discharged from the electrolytic cell 10 through the seventh gas / liquid separator 151 and the fifth gas / liquid separator 63. The lower part of the fifth gas / liquid separator 63 and the electrolytic cell 10 are connected by a conduit, and the liquid separated from the mixed gas is returned to the electrolytic cell 10 in the fifth gas / liquid separator 63. A check valve 150 is provided in a conduit connected to the lower part of the fifth gas-liquid separator 63. This check valve 150 prevents the flow of the mixed gas from the electrolytic cell 10 toward the fifth gas-liquid separator 63.

  FIG. 23 shows a preferred example of the seventh gas-liquid separator 151 in the present embodiment.

  The seventh gas-liquid separation chamber 152 has a substantially cylindrical shape, and a plurality of baffle plates 154 are arranged on the upper portion, and a conduit 153 is provided on the upper side wall thereof. The conduit 153 can also be provided on the ceiling surface of the seventh gas / liquid separation chamber 152.

  The upper end of the seventh gas-liquid separation chamber 152 is closed, and the lower end is a funnel-like thin tube. This thin tube is connected to the upper part of the electrolytic cell 10 as shown in FIG.

  Each baffle plate 154 is fixed to the support shaft 155 at a predetermined interval, and the support shaft 155 is fixed to the ceiling surface of the seventh gas-liquid separation chamber 152.

  FIG. 24 is a schematic view of the baffle plates 154 provided in the seventh gas-liquid separation chamber 152, and each baffle plate 154 is a disc with a part of the outer periphery cut. These baffle plates 154 are fixed to the support shaft 155 by changing the direction of the cut portion. Each baffle plate 154 is arranged so that the outer periphery thereof is in contact with the inner wall of the seventh gas-liquid separation chamber 152. In this state, since a part of the outer periphery of the baffle plate 154 is cut, a gap 156 is provided between the part and the inner wall of the seventh gas-liquid separation chamber 152. The mixed gas introduced from the electrolytic cell 10 to the lower part of the seventh gas-liquid separation chamber 152 rises toward the conduit 153 sequentially through the gap 156. At this time, the high-humidity mixed gas is cooled by the baffle plate 154, and the liquid component is separated from the mixed gas. The liquid component is returned to the electrolytic cell 10 from the lower part of the seventh gas-liquid separation chamber 152. Note that the fifth gas-liquid separator 63 is omitted because it has been described in the previous embodiment.

  As described above, by using two gas-liquid separators connected in series, the discharged mixed gas is kept at a very high dryness, and can be immediately used as it is as a combustion gas.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram which shows suitable 1st Embodiment of the combustion gas generator which concerns on this invention. Sectional drawing which shows the principal part of the combustion gas generator in FIG. The principal part perspective view which shows the support structure of the intermediate electrode in FIG. 4A is a perspective view of the main part showing the support structure of the intermediate electrode in FIG. 2, as in FIG. 3, and FIG. 4B is a cross-sectional view of the lower fixing plate. The top view which shows the relationship between the electrolytic vessel and cooling device in 1st Embodiment. The top view which shows the detail of the 1st gas-liquid separation apparatus in 1st Embodiment. BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows the multistage gas-liquid separation apparatus provided in the electrolytic cell exterior in 1st Embodiment. The principal part sectional view showing the 2nd gas-liquid separation device in a 1st embodiment. The top view which shows the inside of the gas-liquid separation chamber in FIG. The principal part sectional drawing which shows the explosion-proof apparatus provided in the upper part of the 2nd gas-liquid separator in 1st Embodiment. Schematic explanatory drawing which shows the 3rd gas-liquid separation apparatus in 1st Embodiment. The top view which shows the dehumidification pipe | tube of the 4th gas-liquid separator in 1st Embodiment. The top view which shows the other dehumidification pipe | tube of the 4th gas-liquid separator in 1st Embodiment. Explanatory drawing which shows schematic structure of the 5th gas-liquid separation apparatus in 1st Embodiment. The schematic sectional drawing which shows the 6th gas-liquid separator in 1st Embodiment. The schematic block diagram which shows suitable embodiment of the vehicle-mounted combustion gas generator which concerns on this invention. The principal part perspective view which shows the electrolytic cell of 2nd Embodiment of FIG. The exploded perspective view which shows the internal structure of the electrolytic vessel in FIG. Schematic explanatory drawing which shows the cooling device in 3rd Embodiment. Schematic explanatory drawing which shows the deposit removal apparatus in 3rd Embodiment. The schematic explanatory drawing which shows the switching apparatus of a positive / negative electrode. Schematic explanatory drawing which shows the gas-liquid separator connected to the combustion gas generator in 4th Embodiment. The schematic sectional drawing which shows the 7th gas-liquid separator in 4th Embodiment. The top view which shows the inside of the gas-liquid separation chamber in FIG.

Explanation of symbols

  10,100 electrolytic cell, 11 electrolytic solution, 12 positive electrode, 13 negative electrode, 14,102 intermediate electrode, 15,116 power supply device, 16 natural circulation type cooling device, 18,112 hermetic lid, 19 discharge port, 25 upper fixed Plate, 26 lower fixed plate, 49 gas-liquid separation chamber, 59 sixth gas-liquid separator, 60, 113 second gas-liquid separator, 61 third gas-liquid separator, 62 fourth gas-liquid separator, 63 first 5 Gas-liquid separator, 80 Dehumidifying pipe, 81 Outer cylinder, 82 Inner cylinder, 83 Extraction pipe, 105, 106 Cooling fin, 108 First gas-liquid separator, 114 Explosion-proof device, 120 Cooling device, 122 Cooling coil, 131 Precipitation Chamber, 132 filter, 133 pump, 134 flow path, 150 check valve, 151 seventh gas-liquid separation device, 152 seventh gas-liquid separation chamber, 153 conduit, 154 baffle plate, 155 Support shaft, 156 gap.

Claims (6)

An electrolytic cell filled with an electrolytic solution;
A positive electrode and a negative electrode immersed in the electrolytic solution in the electrolytic cell;
A plurality of intermediate electrodes arranged between the two electrodes with respect to both electrodes and insulated from each other, and receiving a voltage between the two electrodes, respectively;
A power supply device for applying a DC alternating voltage to both electrodes;
Sealing the electrolytic cell, and a sealing lid having a discharge port for discharging gas generated by electrolysis,
Electrolyzer using electrolysis including The apparatus of claim 1.
An electrolysis apparatus using electrolysis, including a cooling coil provided in contact with the electrolyzer and having a cooling device for cooling the electrolyte in the electrolyzer. The apparatus according to claim 1 or 2,
An electrolysis apparatus using electrolysis having a sedimentation chamber for precipitating and accumulating foreign matters generated by electrolysis or mixed dust at a lower part of the electrolysis tank. The apparatus of claim 3.
A flow path connecting the precipitation chamber and the electrolytic cell;
A pump provided in the flow path, for flowing an electrolyte from the sedimentation chamber to the electrolytic cell;
A filter provided in the flow path to remove the foreign matter or dust contained in the electrolyte;
An electrolysis apparatus using electrolysis. A first gas-liquid separator connected to an electrolyzer utilizing electrolysis and separating a liquid component from a gas generated in the electrolyzer;
A second gas-liquid separator connected in series to the first gas-liquid separator and further separating a liquid component from the gas;
With
The first gas-liquid separator is
A first separation chamber in which gas flows from the bottom toward the top;
A plurality of baffles having an outer periphery in contact with the inner wall of the first separation chamber and a gap through which a gas flows between a part thereof and the inner wall of the first separation chamber;
Including
The second gas-liquid separator is
A second cylinder having a double cylinder composed of an outer cylinder and an inner cylinder, the upper part of which is closed;
A tip tube inserted into the tube from the outer cylinder, and a jet pipe that ejects gas from a lateral hole provided at the tip so as to spiral down along the inner surface of the outer cylinder;
An extraction tube that is inserted into the inner cylinder, one end of which opens at the upper part of the inner cylinder and extracts gas therefrom;
including,
A gas-liquid separation device for an electrolysis device using electrolysis. In the gas-liquid separator for an electrolyzer utilizing electrolysis according to claim 5,
The second gas-liquid separation device is provided in a conduit for connecting the lower part of the second separation chamber and the electrolysis device to return the liquid component separated from the gas to the electrolysis device, and from the electrolysis device to the first Having a check valve to block the flow of fluid towards the two separators,
A gas-liquid separation device for an electrolysis device using electrolysis.

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