CN110846677A

CN110846677A - Equipment for producing hydrogen by electrolysis

Info

Publication number: CN110846677A
Application number: CN201911237895.XA
Authority: CN
Inventors: 厉建全
Original assignee: Xuzhou Zhongke Hydrogen Medical Technology Co ltd
Current assignee: Xuzhou Zhongke Hydrogen Medical Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-02-28

Abstract

The invention discloses an electrolytic hydrogen production device, belonging to the field of electrolytic hydrogen production, and the electrolytic hydrogen production device utilizes a filling material to adsorb alkali mist contained in gas discharged from an electrolytic cell, and the surface micropores on the surface of the filling material are added with the excavated capillary micropores by the ball milling technology, so that the specific surface area of the filling material is increased, the adsorption capacity of the filling material is increased by micro-electrostatic treatment, meanwhile, in the air filtering chamber, the reasonable pneumatic layout is adopted, the advancing path of the gas containing the alkali fog in the air filtering chamber is prolonged, the adsorption efficiency of the surface micropores is increased, when the adsorption capacity of the filling material is saturated, technicians can recover the filling material to recover the adsorption capacity and reuse the filling material, so that the production cost of manufacturers for electrolyzing hydrogen by water is greatly reduced, and the economic benefit of the manufacturers for electrolyzing hydrogen by water is increased.

Description

Equipment for producing hydrogen by electrolysis

Technical Field

The invention relates to the field of electrolytic hydrogen production, in particular to an electrolytic hydrogen production device.

Background

In the present technical field, hydrogen production means can be roughly divided into fossil fuel reforming, decomposition, photolysis or water electrolysis, and the like, wherein the purity of hydrogen obtained by water electrolysis is high and can reach more than 99.9%, and the hydrogen production means can be directly applied to the manufacturing industry of precise electronic devices with high requirements on hydrogen purity.

The water electrolysis technology of alkaline liquid takes KOH, NaOH aqueous solution as electrolyte, for example, asbestos cloth and the like as a diaphragm, and electrolyzes water to generate hydrogen and oxygen under the action of direct current, the preparation technology is mature day by day through years of production practice, and the effective service life of electrolysis equipment is about 15 years.

However, in the alkaline water electrolysis technology, the produced gas is usually mixed with a small amount of alkaline gas, so the alkaline mist treatment needs to be carried out, the most common means for treating the alkaline mist in the prior art is neutralization and absorption, namely, the fixation and absorption of the alkaline mist are realized through substances capable of reacting with the alkaline mist, the method has good absorption effect and quick reaction, however, in the actual production process, along with the health of people's environmental awareness, products produced by the absorption method are rich in various salt ions and are directly put into the environment, so that the environment is easily and seriously polluted, therefore, a manufacturer needing water electrolysis hydrogen needs to treat products adsorbed by the alkaline mist, the production cost of the manufacturer using water electrolysis hydrogen is additionally increased, and the economic benefit of the production of the manufacturer using water electrolysis hydrogen is influenced.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide electrolytic hydrogen production equipment, which can absorb alkali fog mixed with target gas hydrogen generated in an alkaline water electrolysis technology, and after absorption is finished, technicians can clean an adsorption material to recover the adsorption performance of the adsorption material, so that the adsorption material can be recycled, the production cost of a manufacturer for electrolyzing hydrogen by water is greatly reduced, and the production economic benefit of the manufacturer for electrolyzing hydrogen by water is increased.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides an equipment of electrolytic hydrogen production, includes the gas filter chamber, the gas filter chamber includes the gas filter chamber outer wall, fixedly connected with inlet port on the outer wall of gas filter chamber outer wall, and the inlet port runs through the gas filter chamber outer wall, one section fixedly connected with and the inlet port assorted gas outlet of inlet port are kept away from to the gas filter chamber outer wall, the gas filter chamber is inside to be linked together with the external world through inlet port and gas outlet, gas filter chamber outer wall inner wall fixedly connected with multiunit division board, it has square air vent to cut on the division board, and two are adjacent the square air vent of cutting on the division board is in diagonal position, and the square air vent of cutting on inlet port and the adjacent division board of gas filter chamber inner wall of gas outlet and gas filter chamber inner wall also is in the farthest position, the packing material is filled to the gas filter chamber indoor packing, the surface of packing material is cut, can absorb the alkaline fog that produces and target gaseous hydrogen and mix together in the alkaline water electrolysis technique, and after the absorption, the technical staff can wash the adsorption material, resumes adsorption material's adsorption performance, realizes reuse, reduces the manufacturing cost of the firm of water electrolysis hydrogen by a wide margin, increases the economic benefits of the firm's of water electrolysis hydrogen production.

Further, referring to fig. 4-6, the air inlet is fixedly connected with a connecting pipe, the connecting pipe is connected with an electrolytic cell exhaust pipe, one end of the connecting pipe is inserted into the electrolytic cell exhaust pipe, the connecting pipe is fixedly connected with the outer wall of the electrolytic cell exhaust pipe through a flange, one end of the electrolytic cell exhaust pipe, which is far away from the connecting pipe, is fixedly connected with an electrolytic cell, and the electrolytic cell is communicated with the air filtering chamber through the connecting pipe and the electrolytic cell exhaust pipe.

Further, the inner wall of the electrolytic cell exhaust pipe is fixedly connected with a reference part, the reference part is close to one end of the connecting pipe and is fixedly connected with a limiting rod, the limiting rod is far away from one end of the reference part and is fixedly connected with a limiting block, a sealing piston is connected on the limiting rod in a sliding manner, a compression spring is fixedly connected between the sealing piston and the reference part and is sleeved outside the limiting block, the connecting pipe is positioned at one end of the electrolytic cell exhaust pipe and is contacted with the sealing piston, an annular vent hole is drilled on the side wall of the connecting pipe and is positioned at one side of the connecting pipe close to the sealing piston, when the air filtering chamber normally works, gas discharged from the electrolytic cell can enter the air filtering chamber through the electrolytic cell exhaust pipe, the annular vent hole and the connecting pipe, and when the air filtering chamber is cleaned, the connecting pipe can be extracted from the electrolytic cell, at the moment, the compression spring in a compressed state can push the sealing piston back to the position shown in figure 3, the exhaust pipe of the electrolytic cell is plugged by the sealing piston, and the electrolytic cell is in a sealed state and is not easily polluted by foreign matters.

Further, fixedly connected with and self assorted second filter screen in the benchmark piece, fixedly connected with and self assorted second filter screen in the annular vent hole, second filter screen and second filter screen can reduce because atmospheric pressure diminishes in the electrolytic bath, and the probability that the surface micropore that the gas filter chamber woollen was filled was inhaled the electrolytic bath by the resorption is that the electrolyte is difficult for being polluted in the electrolytic bath.

Furthermore, a wear-resistant ring is connected between the limiting rod and the sealing piston and fixedly connected with the sealing piston, so that the wear between the limiting rod and the sealing piston can be effectively reduced by the wear-resistant ring, the connection between the limiting rod and the sealing piston is not prone to shaking, and the sealing effect of the sealing piston is not prone to being influenced.

Furthermore, the capillary micropores are excavated by a ball milling technology, the filling material is filled into a ball milling tank, dry milling is carried out without adding ball milling balls, the filling material cannot be continuously milled after the filling material is self-milled to a certain particle size due to consistent strength of the filling material, energy generated by collision of the filling material is not easily released but stored in the filling material, and the capillary micropores are easily excavated again in the filling material after the energy is stored to a certain amount.

Furthermore, grinding aid liquid is added into the ball milling tank when the filling material is subjected to ball milling, so that the instant impact generated when the filling material collides with the ball milling tank in the ball milling process can be reduced by the grinding aid liquid, the capillary micropore cutting speed is reduced, the particle size of the filling material can be increased, and the subsequent processing of the filling material is facilitated.

Furthermore, the filling material needs to be dried after being subjected to wet grinding, and is exposed to the sun for 2-3 days to restore the adsorbability of the filling material.

Furthermore, the surface of the filling material is subjected to electrostatic treatment before use, so that an electrostatic film is formed on the surface of the filling material, and the adsorption capacity of the filling material is improved.

Furthermore, after the filling material is saturated, the filling material needs to be revived, the filling material is taken out of the air filtering chamber and soaked in distilled water for 1-2 days, then the filling material is taken out of the distilled water and dried, and the filling material is revived after being exposed to the sun, so that the repeated utilization of the filling material is realized.

3. Advantageous effects

The invention utilizes the filling material to absorb the alkali fog contained in the gas exhausted by the electrolytic cell, and adds the dug capillary micropores to the surface micropores on the surface of the filling material by the ball milling technology, thereby increasing the specific surface area of the filling material, increasing the adsorption capacity of the filling material, and increasing the adsorption capacity of the filling material by micro-electrostatic treatment.

Drawings

FIG. 1 is a schematic view of the structure of an air filtering chamber of the present invention;

FIG. 2 is a schematic view of a partial structure of the surface of the packing material of the air filter chamber according to the present invention;

FIG. 3 is a side cross-sectional view of the cell of the present invention at the vent;

FIG. 4 is a cross-sectional view of the electrolytic cell of the present invention with a connecting pipe inserted at the exhaust port;

FIG. 5 is a schematic view of the construction of the datum part of the present invention;

FIG. 6 is a schematic view of the structure of the pipe orifice of the connecting pipe of the present invention;

figure 7 is a side cross-sectional view of a gas filter chamber of the present invention.

The reference numbers in the figures illustrate:

the device comprises a gas filtering chamber outer wall 1, a gas inlet 2, a partition plate 3, a square vent hole 4, a filling material 5, surface micropores 6, capillary micropores 7, a connecting pipe 8, a second filter screen 9, an electrolytic cell exhaust port 10, a reference part 11, a second filter screen 12, a limiting rod 13, a limiting block 14, a sealing piston 15 and a compression spring 16.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1, an apparatus for producing hydrogen by electrolysis comprises a gas filtering chamber, the gas filtering chamber comprises a gas filtering chamber outer wall 1, an air inlet 2 is fixedly connected to the outer wall of the gas filtering chamber outer wall 1, the air inlet 2 penetrates through the gas filtering chamber outer wall 1, a section of the gas filtering chamber outer wall 1 far away from the air inlet 2 is fixedly connected with an air outlet matched with the air inlet 2, the inside of the gas filtering chamber is communicated with the outside through the air inlet 2 and the air outlet, a plurality of groups of partition plates 3 are fixedly connected to the inner wall of the gas filtering chamber outer wall 1, square vent holes 4 are drilled on the partition plates 3, the square vent holes 4 drilled on two adjacent partition plates 3 are located at opposite angles, namely, the square vent holes 4 drilled on two adjacent partition plates 3 are located at the farthest positions, the air inlet 2 and the air outlet and the square vent holes 4 drilled on the partition plates 3 adjacent to the inner wall of the, the surface of the filling material 5 is provided with surface pores 6, and the surface of the surface pores 6 is provided with capillary pores 7.

When the discharged gas of the electrolytic cell is filtered, the surface micropores 6 and the capillary micropores 7 on the surface of the filling material 5 can effectively increase the specific surface area of the filling material 5, the filling material 5 can effectively absorb the alkali mist mixed in the hydrogen through the surface energy of the filling material 5 to play a role in filtering the gas, the path length of the discharged gas in a gas filtering chamber can be effectively increased by drilling the square vent holes 4 on two adjacent partition plates 3 at the diagonal positions, and the gas filtering effect of the surface micropores 6 is increased.

The special air filtering chamber is provided with a corresponding discharge opening and a corresponding charging opening, so that the replacement of the filler in the outer wall 1 of the air filtering chamber can be completed.

Referring to fig. 4-6, a connection pipe 8 is fixedly connected to the air inlet 2, the connection pipe 8 is connected to an electrolytic cell exhaust pipe 10, one end of the connection pipe 8 is inserted into the electrolytic cell exhaust pipe 10, the connection pipe 8 is fixedly connected to the outer wall of the electrolytic cell exhaust pipe 10 through a flange, one end of the electrolytic cell exhaust pipe 10 away from the connection pipe 8 is fixedly connected to the electrolytic cell, the electrolytic cell is communicated with the air filtering chamber through the connection pipe 8 and the electrolytic cell exhaust pipe 10, a reference member 11 is fixedly connected to the inner wall of the electrolytic cell exhaust pipe 10, one end of the reference member 11 close to the connection pipe 8 is fixedly connected to a limit rod 13, one end of the limit rod 13 away from the reference member 11 is fixedly connected to a limit block 14, a sealing piston 15 is slidably connected to the limit rod 13, a compression spring 16 is fixedly connected between the sealing piston, one end that connecting pipe 8 is located electrolytic cell blast pipe 10 contacts with sealed piston 15, it has annular air vent to cut on the lateral wall of connecting pipe 8, and annular through-hole is located one side that connecting pipe 8 is close to sealed piston 15, when straining the normal work of air chamber, the electrolytic cell combustion gas can be via electrolytic cell blast pipe 10, annular air vent and connecting pipe 8 get into strain the air chamber, and when clearing up straining the air chamber, can extract connecting pipe 8 from electrolytic cell blast pipe 10 in, compression spring 16 at the compression state can push back sealed piston 15 to the position shown in figure 3 this moment, electrolytic cell blast pipe 10 is by sealed piston 15 shutoff this moment, the electrolytic cell is in encapsulated situation, be difficult for being polluted by the foreign object. Fixedly connected with and self assorted second filter screen 12 in the benchmark piece 11, fixedly connected with and self assorted second filter screen 9 in the annular vent hole, second filter screen 9 and second filter screen 12 can reduce because atmospheric pressure diminishes in the electrolytic bath, the probability of electrolytic bath is inhaled by the resorption to surperficial micropore 6 that the gas filter chamber woollen was filled, it is difficult for being contaminated to be the electrolyte in the electrolytic bath, be connected with wear ring between gag lever post 13 and the sealing piston 15, and wear ring and sealing piston 15 fixed connection, wear ring can effectively reduce the wearing and tearing between gag lever post 13 and the sealing piston 15, make the be connected between gag lever post 13 and the sealing piston 15 difficult appearance rock, be difficult for influencing the sealed effect of sealing piston 15.

The capillary micropores 7 are excavated by a ball milling technology, the filling material 5 is filled into a ball milling tank, dry milling is not carried out without adding ball milling balls, the self strength of the filling material 5 is consistent, the filling material 5 cannot be continuously milled after being self-milled to a certain particle size, at the moment, energy generated by collision between the filling materials 5 is not easily released but is stored in the filling material 5, the capillary micropores 7 are easily excavated again in the filling material 5 after the energy is stored to a certain amount, grinding aid liquid is added into the ball milling tank when the filling material 5 is ball milled, the grinding aid liquid can reduce instant impact generated when the filling material 5 collides with the filling material 5 in the ball milling process, although the excavation speed of the capillary micropores 7 is reduced, the particle size of the filling material 5 can be increased, the subsequent processing of the filling material 5 is convenient, the filling material 5 needs to be dried after being wet milled, and is exposed to the sun for 2-3 days, the filling material 5 is taken out from the air filtering chamber, soaked in distilled water for 1-2 days, taken out from the distilled water, dried, exposed to the sun to finish the recovery of the filling material 5, and the repeated utilization of the filling material 5 is realized.

The invention utilizes the filling material 5 to absorb the alkali fog contained in the gas exhausted by the electrolytic cell, and adds the dug capillary micropores 7 to the surface micropores 6 on the surface of the filling material 5 by the ball milling technology, thereby increasing the specific surface area of the filling material 5, increasing the adsorption capacity of the filling material 5, and increasing the adsorption capacity of the filling material 5 by the micro-electrostatic treatment, and simultaneously in the air filtering chamber, the travelling path of the gas containing the alkali fog in the air filtering chamber is prolonged by the reasonable pneumatic layout, and the adsorption efficiency of the surface micropores 6 is increased, and when the adsorption capacity of the filling material 5 is saturated, technicians can carry out the recovery treatment on the filling material 5, so that the filling material 5 recovers the adsorption capacity, and is reused, thereby greatly reducing the production cost of the manufacturers for electrolyzing hydrogen and increasing the economic benefit of the manufacturers for electrolyzing hydrogen.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. An apparatus for the electrolytic production of hydrogen comprising a gas-filtering chamber outer wall (1), characterized in that: fixedly connected with inlet port (2) on the outer wall of air filter outer wall (1), and inlet port (2) run through air filter outer wall (1), one section fixedly connected with and inlet port (2) assorted gas outlet of inlet port (2) are kept away from to air filter outer wall (1), air filter chamber inside is linked together with the external world through inlet port (2) and gas outlet, air filter outer wall (1) inner wall fixedly connected with multiunit division board (3), it has square air vent (4) to cut on division board (3), two are adjacent the square air vent (4) of cutting on division board (3) are in diagonal angle position, and inlet port (2) and gas outlet also are in the farthest position with square air vent (4) of cutting on the adjacent division board (3) of air filter outer wall (1) inner wall, it has filling material (5) to fill in the air filter chamber, the surface of filling material (5) is cut has surface micropore (6), the surface of the surface micropores (6) is provided with capillary micropores (7).

2. An apparatus for electrolytic hydrogen production according to claim 1, characterized in that: inlet port (2) fixedly connected with connecting pipe (8), connecting pipe (8) are connected with electrolytic cell blast pipe (10), in the one end grafting electrolytic cell blast pipe (10) of connecting pipe (8), and through flange fixed connection between the outer wall of connecting pipe (8) and electrolytic cell blast pipe (10), the one end and the electrolytic cell fixed connection of connecting pipe (8) are kept away from to electrolytic cell blast pipe (10).

3. An apparatus for electrolytic hydrogen production according to claim 1, characterized in that: electrolytic cell blast pipe (10) inner wall fixedly connected with benchmark piece (11), benchmark piece (11) are close to one end fixedly connected with gag lever post (13) of connecting pipe (8), one end fixedly connected with stopper (14) of benchmark piece (11) are kept away from in gag lever post (13), sliding connection has sealing piston (15) on gag lever post (13), fixedly connected with compression spring (16) between sealing piston (15) and benchmark piece (11), and compression spring (16) cup joint in the outside of stopper (14), the one end that connecting pipe (8) are located electrolytic cell blast pipe (10) contacts with sealing piston (15), it has annular air vent to open on the lateral wall of connecting pipe (8), and annular air vent is located one side that connecting pipe (8) are close to sealing piston (15).

4. An apparatus for electrolytic hydrogen production according to claim 1, characterized in that: fixedly connected with and self assorted second filter screen (12) in benchmark piece (11), fixedly connected with and self assorted second filter screen (9) in the annular venthole.

5. An apparatus for electrolytic hydrogen production according to claim 1, characterized in that: and a wear-resistant ring is connected between the limiting rod (13) and the sealing piston (15), and the wear-resistant ring is fixedly connected with the sealing piston (15).

6. The filling material for an apparatus for electrolytic hydrogen production according to claim 1, characterized in that: the capillary micropores (7) are cut by a ball milling technology, the filling materials (5) are filled into a ball milling tank, dry milling is carried out without adding ball milling balls, and the self strength of the filling materials (5) is consistent.

7. The filling material for an apparatus for electrolytic hydrogen production according to claim 1, characterized in that: and when the filling material (5) is subjected to ball milling, grinding aid liquid is added into the ball milling tank, so that the instant impact generated when the filling material (5) collides with the ball milling tank in the ball milling process can be reduced.

8. The filling material for an apparatus for electrolytic hydrogen production according to claim 1, characterized in that: the filling material (5) needs to be dried after being subjected to wet grinding.

9. The filling material for an apparatus for electrolytic hydrogen production according to claim 1, characterized in that: the surface of the filler (5) is subjected to electrostatic treatment before use, and an electrostatic film is formed on the surface of the filler (5).

10. The filling material for an apparatus for electrolytic hydrogen production according to claim 1, characterized in that: and after the filling material (5) is saturated, the recovery treatment is required, the filling material (5) is taken out from the air filtering chamber, soaked in distilled water for 1-2 days, taken out from the distilled water, dried and exposed to the sun to complete the recovery of the filling material (5).