TWI766780B - Electrolyzer device that can separate hydrogen and oxygen - Google Patents

Abstract

An electrolytic cell device capable of separating hydrogen and oxygen, comprising a cell body and an electrode unit arranged in the cell body. The trough body includes a bottom wall, a surrounding wall extending from the bottom wall, a top wall connected with the surrounding wall, and a partition connected with the surrounding wall and spaced from the bottom wall. The partition divides the space in the tank into a containing space outside the partition and an escape space inside the partition. The accommodating space is divided into a first partition area and a second partition area located on both sides of the partition. The electrode unit includes a cathode member located in the first separation area and an anode member located in the second separation area, and both the anode member and the cathode member pass through the top wall. Through the escape space, the passage of hydrogen can be effectively blocked, so as to avoid the mixing of hydrogen and oxygen.

Description

Electrolyzer device that can separate hydrogen and oxygen

The present invention relates to an electrolytic cell device, in particular to an electrolytic cell device capable of separating hydrogen and oxygen.

Referring to FIG. 1, it is a conventional electrolytic cell device, suitable for processing an electrolyte, and comprising a tank body 11 defining a containing space, a direct current unit 12 mounted on the tank body 11, and a The collection unit 13 of the tank body 11 . The tank body 11 includes a bottom wall 111 , a peripheral wall 112 extending upward from the peripheral edge of the bottom wall 111 , and a partition 113 whose left and right ends are clamped to the peripheral wall 112 and spaced from the bottom wall 111 . The direct current unit 12 includes a cathode member 121 and an anode member 122 which are penetrated through the peripheral wall 112 and located on both sides of the separator 113 respectively. The collecting unit 13 includes two output pipes 131 connected to the containing space and located on both sides of the partition plate 113 respectively. The design of separating the cathode member 121 and the anode member 122 by the separator 113 can prevent the generated hydrogen from mixing with oxygen when the electrolyte is electrolyzed, and then pass through the output pipes. The 131 collects high concentrations of hydrogen and oxygen respectively, thereby preventing the accident of explosion caused by the mixture of spontaneous combustion gas and combustion-supporting gas. However, due to the strong permeability of hydrogen, the separator 113 is a single-layer medium and cannot effectively block hydrogen, so that during electrolysis, hydrogen may pass through the separator 113 and contact with oxygen. When the temperature in the tank body 11 is high, an explosion may occur. Therefore, under the limited cost, how to improve the above structure to avoid the mixing of hydrogen and oxygen has become the goal of the industry.

Therefore, the purpose of the present invention is to provide an electrolytic cell device capable of separately collecting high-concentration oxygen and hydrogen, and avoiding the mixing of oxygen and hydrogen for safe operation.

Therefore, the electrolytic cell device capable of separating hydrogen and oxygen according to the present invention is suitable for containing an electrolyte, and includes a cell body, an electrode unit and a collection unit disposed in the cell body. The trough body includes a bottom wall, a surrounding wall extending upward from the periphery of the bottom wall, a top wall connected to the top edge of the surrounding wall, and a top wall connected to the surrounding wall at both ends and spaced from the bottom wall clapboard. The partition has two side portions extending from the top wall to the bottom wall at intervals, and a bottom portion connected to the bottom ends of the side portions. The separator divides the space in the tank into a holding space outside the separator and used to hold the electrolyte, and an escape space inside the separator. The accommodating space is divided into a first partition area and a second partition area located on both sides of the partition. The volume of the first partition area is larger than the volume of the second partition area. The electrode unit includes a cathode member located in the first separation region, an anode member located in the second separation region, and an electrical output device electrically connecting the cathode member and the anode member. Both the cathode member and the anode member pass through the top wall and extend toward the bottom wall. The collecting unit includes a first output pipe disposed on the surrounding wall and communicated with the first separation area, and a second output pipe disposed on the surrounding wall and communicated with the second separation area.

The effect of the present invention is: through the escape space formed in the partition, an air door can be formed, thereby preventing hydrogen from passing through the partition from the first partition area to the second partition area, thereby preventing spontaneous combustion The mixing of the volatile gas and the combustion-supporting gas occurs, and the design that the first output pipe and the second output pipe are respectively arranged in the first separation area and the second separation area, and the principle that the specific gravity of the electrolytic gas is less than that of water , can collect high concentrations of hydrogen and oxygen respectively, in order to achieve safe electrolysis and collection operations.

Referring to FIG. 2 to FIG. 5 , it is an embodiment of an electrolytic cell device capable of separating hydrogen and oxygen according to the present invention, which is suitable for containing an electrolyte L for electrolysis. This embodiment includes a tank body 2 containing the electrolyte L, and an electrode unit 3 and a collection unit 4 disposed in the tank body 2 .

The trough body 2 includes a bottom wall 21, a surrounding wall 22 extending upward from the periphery of the bottom wall 21, a top wall 23 connected to the top edge of the surrounding wall 22, and two ends connected to the surrounding wall 22 and connected to the surrounding wall 22. The bottom wall 21 is spaced apart by a partition 24 , a cover 25 detachably connected to the top wall 23 , and a baffle 26 disposed between the bottom wall 21 and the partition 24 . The partition 24 has two side portions 241 extending from the top wall 23 to the bottom wall 21 at intervals, and a bottom portion 242 connecting the bottom ends of the side portions 241 and spaced from the bottom wall 21 . It should be noted that the surrounding wall 22 , the top wall 23 and the partition plate 24 are integrally formed, and the bottom wall 21 is fixed on the surrounding wall 22 by means of ultrasonic connection, so the manufacturing process is relatively low. It is convenient and structurally sturdy. Furthermore, an axial direction D perpendicular to the bottom wall 21 and the top wall 23 and parallel to the surrounding wall 22 is defined. The baffle plate 26 is preferably a solid plate to block the passage of gas, and the top edge and the bottom edge of the baffle plate 26 are respectively connected to the partition plate 24 and the bottom wall 21 . In this embodiment, one end of the baffle 26 is connected to the surrounding wall 22 , and the other end is spaced from the surrounding wall 22 , and the width of the baffle 26 is greater than the width of the bottom wall 21 as shown in FIG. 4 . half of .

In this embodiment, the spacer 24 divides the space in the tank body 2 into a containing space 201 located outside the spacer 24 and used for containing the electrolyte L, and a space inside the spacer 24 capable of containing the electrolyte L. Escape space 202 for gas flow. In this embodiment, there is no communication between the containing space 201 and the escape space 202 , so that the electrolyte L cannot pass from the containing space 201 to the escape space 202 through the separator 24 . The accommodating space 201 is divided into a first separation area E1 on one side of the partition plate 24, a second separation area E2 on the other side of the partition plate 24 and spaced from the first separation area E1, and a second separation area E2 on the other side of the partition plate 24 The bottom wall 21 , the surrounding wall 22 , the bottom 242 of the partition 24 and the baffle 26 are surrounded and defined, and communicate with the flow area E3 of the first separation area E1 and the second separation area E2 . Wherein, the volume of the first separation area E1 is larger than the volume of the second separation area E2. In addition, it should be noted that the top wall 23 forms a water filling port 230 that communicates with the containing space 201 and forms an internal thread for screwing the cover 25 , and the cover 25 can be operatively screwed to the top wall 23 . , thereby sealing the water injection port 230 . The design of the water injection port 230 located on the top wall 23 can replenish the electrolyte L without disassembling the surrounding wall 22 and the top wall 23 , thereby further improving convenience.

The electrode unit 3 includes a cathode member 31 located in the first separation region E1, an anode member 32 located in the second separation region E2, and an electric device that electrically connects the cathode member 31 and the anode member 32 and provides electric power outputter 33. Both the cathode member 31 and the anode member 32 pass through the top wall 23 and extend toward the bottom wall 21 and along the axial direction D, and are connected with the side portions 241 of the separator 24 and the surrounding wall 22 are parallel to each other. The length of the anode member 32 is greater than the length of the cathode member 31, so that the length ratio of the anode member 32 and the cathode member 31 is 2.5-3:1, and the difference in length can prevent the anode member 32 from rusting, and further to improve the efficiency of electrolysis. In this embodiment, the length of the anode member 32 along the axial direction D is greater than that of the separator 24 so as to have better electrolysis efficiency, and as shown in FIG. It will be blocked by the baffle 26, but this embodiment is not limited to this setting position, as long as the gas generated by the anode element 32 does not flow to the first separation area E1. In addition, it should be noted that the distance from the bottom wall 21 to the bottom 242 of the separator 24 along the axial direction D is greater than the distance from the bottom wall 21 to the cathode member 31 along the axial direction D. The distance from the bottom end, that is, the length of the cathode member 31 along the axial direction D, is smaller than the length of any side portion 241 along the axial direction D, so that the generated gas is blocked by the separator 24, and cannot flow laterally to the second separation region E2. The length of the anode member 32 along the axial direction D may be smaller than the length of any side portion 241 along the axial direction D as shown in FIG. 2 , or greater than or equal to the length of any side portion 241 along the axial direction as required The length of the direction D is not limited in this embodiment.

The collecting unit 4 includes a first output pipe 41 which penetrates through the surrounding wall 22 and communicates with the first separation area E1, and a second output pipe 42 which penetrates through the surrounding wall 22 and communicates with the second separation area E2 2. The first output pipe 41 and the second output pipe 42 are respectively connected to the humid bottle 43, and a connecting valve 44 is connected to the humid bottle 43. Due to the design that the first output tube 41 and the second output tube 42 are arranged on the surrounding wall 22, and are further staggered from the electrode unit 3 in spatial position, the situation that lines and wires are mixed can be avoided, thereby improving the use of safety. In addition, it should be noted that the installation positions of the first output tube 41 and the second output tube 42 do not affect the installation positions and dimensions of the cathode member 31 and the anode member 32, so that the cathode member 31 and the anode member 32 are not affected. The outer diameter of the piece 32 can be optimized according to the specification of the top wall 23 . In addition, in this embodiment, the arrangement of the moisturizing bottles 43 and the connecting valve 44 is not necessary, and can be adjusted according to the needs of use.

In the following, the electrolyte L is selected as water as an example, so as to illustrate the operation of this embodiment. First, operate the cover 25 to separate from the top wall 23, and fill the electrolyte L into the containing space 201 through the water injection port 230. When the cathode member 31 and the anode member 32 are immersed in the electrolyte L, the The cover 25 can be screwed to the top wall 23 to seal the water injection port 230 again, so that subsequent electrolysis operations can be performed. Next, the electrical output device 33 is driven to provide power to the cathode member 31 and the anode member 32 . Therefore, the cathode member 31 undergoes a reduction reaction with the surrounding electrolyte L, so that the surrounding electrolyte L obtains electrons, thereby generating a high concentration of hydrogen gas G1 around the cathode member 31; the anode member 32 and the surrounding The electrolytic solution L undergoes an oxidation reaction, so that the surrounding electrolytic solution L loses electrons, thereby generating a high concentration of oxygen gas G2 around the anode member 32 . According to the principle that the specific gravity of gas is smaller than that of water, the hydrogen gas G1 and the oxygen gas G2 float upward in the first separation area E1 and the second separation area E2 respectively along the direction of the arrow in FIG. 5 , and then pass through the The first output pipe 41 and the second output pipe 42 are collected. Finally, due to the design of the first separation region E1 and the second separation region E2, the electrolyte L flows through the circulation region E3 to balance the pH and electrical properties of the first separation region E1 and the second separation region E2. It should be noted that the liquid level of the electrolyte L cannot be higher than the communication port between the first output pipe 41 and the second output pipe 42 on the surrounding wall 22 to prevent the electrolyte L from flowing into the first output tube 41 and the second output tube 42 . In addition, it should be noted that the volume ratio between the first partition region E1 and the second partition region E2 can be adjusted based on the type of the electrolytic solution L. In this embodiment, according to the total number of moles generated by the hydrogen gas G1 and the oxygen gas G2, the volume ratio of the first separation region E1 and the second separation region E2 can be designed to be 2:1.

It is worth mentioning that, in the process of electrolyzing the electrolyte L, the hydrogen gas G1 generated around the cathode member 31 will only be in the escape space 202 even if it passes through the adjacent side portion 241 . Continue to float upwards naturally without a driving force passing through the other side portion 241 to mix with the oxygen gas G2 in the second separation region E2, and because the length of the cathode member 31 is smaller than the length of the separator 24 The length is such that the generated hydrogen gas G1 is less likely to float downward and pass through the circulation area E3 to the second separation area E2. That is to say, the escape space 202 formed by the partition plate 24 can form an air door to prevent the hydrogen gas G1 from continuing to flow laterally from the first separation area E1 to the second separation area E2 to avoid spontaneous combustion The explosion occurs when the gas is mixed with the combustion-supporting gas to achieve safe electrolysis and collection operations. Furthermore, through the design of the cathode member 31 and the anode member 32 passing through the top wall 23 in a direction parallel to the separator 24, installation and operation are more convenient. Furthermore, since the baffle plate 26 is a solid plate and is located between the bottom wall 21 and the partition plate 24 , as shown in FIG. 4 , it can further prevent the gas generated by the anode member 32 from circulating to the first partition. The region E1 is used to avoid gas mixing, and the circulation space E3 next to the baffle plate 26 is available for the electrolyte L to circulate, so as to achieve equilibrium.

In addition, it should be noted that this embodiment has various application modes, for example, the fatigue of athletes can be eliminated by breathing the high concentration of the oxygen G2, or the health care effect can be achieved by absorbing the high concentration of the hydrogen G1. Therefore, when it is necessary to breathe the high concentration of the hydrogen gas G1, it can be sucked through the first output pipe 41, and the corresponding humidity bottle 43 can be used to provide enough moisture so that the breath will not be too dry, Avoid discomfort due to dryness when absorbing. Similarly, when the oxygen G2 with a high concentration needs to be breathed, the second output tube 42 can be used to absorb it. In addition, if one wants to breathe the high concentration of the hydrogen gas G1 and the oxygen gas G2 at the same time, the connecting valve 44 can be used to absorb the hydrogen gas G1 and the oxygen gas G2 at the same time. Wherein, since the hydrogen G1 and the oxygen G2 leave the tank 2 and pass through the wet bottles 43, their temperature will be reduced a lot to avoid explosion, thereby achieving safe simultaneous breathing of the two Efficacy of gas.

To sum up, the electrolytic cell device of the present invention capable of separating hydrogen and oxygen can prevent the hydrogen gas G1 from passing through the first separation area E1 through the escape space 202 formed by the side portions 241 and the bottom portion 242 It can pass through the separator 24 to the second separation area E2, so as to avoid the occurrence of the mixing of the spontaneous combustion gas and the combustion-supporting gas, and to collect the high concentrations of the hydrogen G1 and the oxygen G2 respectively, so as to achieve safe electrolysis and The collection operation can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

2: tank body 201: Dressing Space 202: Escape space 21: Bottom wall 22: Surrounding the Wall 23: Top Wall 230: water injection port 24: Separator 241: Side 242: Bottom 25: Lid 26: Baffle 3: Electrode unit 31: Cathode parts 32: Anode parts 33: Electric output device 4: Collection unit 41: The first output tube 42: The second output tube 43: Wet Bottle 44: Connection valve D: Axial direction E1: The first separation area E2: Second partition area E3: Circulation area G1: Hydrogen G2: Oxygen L: electrolyte

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is a schematic cross-sectional view of a side view, illustrating a conventional electrolytic cell device; 2 is a schematic cross-sectional view from a side view, illustrating an embodiment of an electrolytic cell device capable of separating hydrogen and oxygen according to the present invention; 3 is a schematic cross-sectional view of a top view, further illustrating the arrangement relationship among a tank body, an electrode unit and a collection unit in this embodiment; Figure 4 is a sectional view from a side view, illustrating the positional relationship between a baffle plate and a baffle plate of the tank body; and FIG. 5 is a schematic diagram illustrating the flow of hydrogen and oxygen in this embodiment.

2: tank body

201: Dressing Space

202: Escape space

21: Bottom wall

22: Surrounding the Wall

23: Top Wall

230: water injection port

24: Separator

241: Side

242: Bottom

25: Lid

26: Baffle

3: Electrode unit

31: Cathode parts

32: Anode parts

33: Electric output device

41: The first output tube

42: The second output tube

D: Axial direction

E1: The first separation area

E2: Second partition area

G1: Hydrogen

G2: Oxygen

L: electrolyte

Claims (10)

An electrolytic cell device capable of separating hydrogen and oxygen, suitable for containing an electrolyte, and comprising: a trough body, comprising a bottom wall, a surrounding wall extending upward from the periphery of the bottom wall, a top wall connected to the top edge of the surrounding wall, and two ends connected to the surrounding wall and spaced from the bottom wall The partition plate has two side parts extending from the top wall to the bottom wall at intervals, and a bottom connecting the bottom ends of the side parts, the partition plate divides the space in the tank into a space located at A holding space outside the separator and used to hold the electrolyte, and an escape space inside the separator, the holding space is divided into a first separation area and a second separation area on both sides of the separator , the volume of the first separation region is greater than the volume of the second separation region; an electrode unit, disposed in the tank body, and comprising a cathode member located in the first separation area, an anode member located in the second separation area, and an electrical output device electrically connecting the cathode member and the anode member , both the cathode piece and the anode piece pass through the top wall and extend toward the bottom wall; and a collecting unit, disposed in the tank body, and comprising a first output pipe disposed on the surrounding wall and communicated with the first separation area, and a second output pipe disposed on the surrounding wall and communicated with the second separation area . The electrolyzer device for separating hydrogen and oxygen as claimed in claim 1, wherein the top wall forms a water injection port communicating with the containing space, and the tank body further comprises a detachable connection to the top wall for sealing Hold the lid of the water filler. The electrolyzer device for separating hydrogen and oxygen as claimed in claim 1, wherein the length of the anode member is greater than the length of the cathode member. The electrolyzer device for separating hydrogen and oxygen according to claim 3, wherein the length ratio of the anode member to the cathode member is 2.5-3:1. The electrolyzer device for separating hydrogen and oxygen as claimed in claim 3, wherein an axial direction perpendicular to the bottom wall is defined, and the distance from the bottom wall to the bottom of the partition along the axial direction is greater than The distance from the bottom wall to the bottom end of the cathode member along the axial direction. The electrolyzer device for separating hydrogen and oxygen according to claim 1, wherein the surrounding wall, the top wall and the partition are integrally formed, and the bottom wall is fixed on the surrounding wall by means of ultrasonic connection . The electrolyzer device for separating hydrogen and oxygen as claimed in claim 1, wherein the collecting unit further comprises two damp bottles respectively communicating with the first output pipe and the second output pipe. The electrolyzer device for separating hydrogen and oxygen as claimed in claim 7, wherein the collecting unit further comprises a connecting valve which communicates with the damp bottles. The electrolytic cell device for separating hydrogen and oxygen according to claim 1, wherein the cell body further comprises a baffle plate arranged between the partition plate and the bottom wall, the baffle plate, the bottom wall and the partition plate The plates together define a circulation area connecting the first partition area and the second partition area. The electrolyzer device for separating hydrogen and oxygen according to claim 9, wherein the baffle is a solid plate.

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