CN211394645U

CN211394645U - Water electrolysis oxygen production equipment

Info

Publication number: CN211394645U
Application number: CN201921969904.XU
Authority: CN
Inventors: 方思哲; 其他发明人请求不公开姓名
Original assignee: Shanghai Juna New Material Technology Co ltd
Current assignee: Shanghai Juna New Material Technology Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-09-01
Anticipated expiration: 2029-11-12

Abstract

The utility model provides an electrolytic water oxygen-making equipment, include: the electrolytic bath comprises an anode bath, a cathode bath and an ion exchange membrane which is positioned between the anode bath and the cathode bath and separates the anode bath and the cathode bath; the cathode is positioned in the cathode groove and used for gathering hydrogen ions; the anode is positioned in the anode tank, and the cathode is used for gathering oxygen ions; and the gas input pipeline extends into the cathode tank and is used for introducing oxygen into the cathode tank. Because the cathode slot is connected with the gas input pipeline, oxygen or air can enter the cathode slot through the gas input pipeline, thereby providing conditions for the oxidation reaction or the reduction reaction of the liquid in the cathode slot.

Description

Water electrolysis oxygen production equipment

Technical Field

The utility model relates to an electrolysis water system oxygen technical field, concretely relates to electrolysis water system oxygen equipment.

Background

The existing water electrolysis device has the disadvantages of low water electrolysis efficiency due to large distance between two electrodes, complex structure, difficult assembly and disassembly and limited application range. Furthermore, the use of asbestos paper as a membrane generally reduces the purity of hydrogen and oxygen; the integration degree of the separation of the gas path and the electrolytic bath of some electrolytic devices is low, and an electrolyte circulation system and the like are not available.

In addition, the water electrolysis oxygen production technology refers to a technology for producing oxygen and hydrogen by using a water electrolysis method. Oxygen generated by the electrolysis of water is used for production and living applications, and hydrogen generated by the electrolysis of water is recycled. Since hydrogen is a flammable and explosive hazardous gas, it cannot be discharged directly into the surrounding environment. And adopt the storage bottle to retrieve hydrogen, because the storage bottle is bulky, lead to whole oxygenerator's occupation volume great, it is inconvenient to use.

Therefore, the research on the oxygen generation system by electrolysis is continued, the system not only has the advantages of high electrolysis efficiency, wide application range, simple disassembly, flexible use and the like, but also can inhibit the electrolyzed water from only generating oxygen but not hydrogen, thereby avoiding the adoption of additional equipment or processes such as a hydrogen recovery device and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems, the utility model aims to provide an oxygen production device by electrolyzing water, which can input gas into an electrolytic cell so as to restrain the cathode cell from only producing oxygen but not hydrogen, thereby saving hydrogen recovery equipment or process.

In order to achieve the purpose, the utility model provides an electrolysis water oxygen-making equipment, include:

the electrolytic bath comprises an anode bath, a cathode bath and an ion exchange membrane which is positioned between the anode bath and the cathode bath and separates the anode bath and the cathode bath;

the cathode is positioned in the cathode groove and used for gathering hydrogen ions;

the anode is positioned in the anode tank, and the cathode is used for gathering oxygen ions;

and the gas input pipeline extends into the cathode tank and is used for introducing oxygen into the cathode tank.

In some embodiments, one end of the gas input pipe is connected with a mechanical pump, and the other end is positioned at the bottom in the cathode groove.

In some embodiments, the other end of the gas input pipe is connected with a microporous part, and the microporous part is provided with a plurality of pores; the other end of the gas input pipeline is inserted into the microporous part, so that the gas input pipeline is communicated with the pore in the microporous part.

In some embodiments, the side wall of the cathode slot is provided with a heating element.

In some embodiments, the heating element is a constant temperature heating wire.

In some embodiments, a direct current power source is applied between the anode and the cathode.

In some embodiments, the ion exchange membrane is a proton exchange membrane.

In some embodiments, the gas input conduit is vented with air.

The oxygen making equipment for electrolyzing water of the utility model is provided with the cathode tank connected with the gas input pipeline, so that oxygen or air can enter the cathode tank through the gas input pipeline, thereby providing conditions for the oxidation reaction or the reduction reaction of the liquid in the cathode tank; furthermore, the port of the gas input tube is positioned at the bottom of the cathode tank, so that the gas entering the cathode tank is more fully contacted with the electrolyte in the cathode tank; in addition, a microporous part such as a gas stone is arranged at the other end of the gas input pipeline, gas entering the microporous part from the gas input pipeline is refined, the refined gas is more uniformly dispersed into the electrolyte, and the chemical reaction efficiency in the cathode tank is improved. Furthermore, the heating component is adopted, so that the chemical reaction in the electrolytic cell is promoted to be more sufficient, the chemical reaction rate is accelerated, and particularly, the chemical reaction in the whole electrolytic cell is more uniform aiming at the electrolyte far away from the cathode.

Drawings

FIG. 1 is a schematic structural view of an oxygen generation system by electrolyzing water according to an embodiment of the present invention

FIG. 2 is a schematic structural view of a microporous member according to an embodiment of the present invention

Detailed Description

In order to make the contents of the present invention clearer and easier to understand, the following description will further explain the contents of the present invention in conjunction with the specific embodiments. Of course, the invention is not limited to this specific embodiment, and general alternatives known to those skilled in the art are also within the scope of the invention.

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings 1 to 2.

Referring to fig. 1, the system for generating oxygen by electrolyzing water of the present embodiment includes:

the electrolytic bath 00 comprises an anode bath 01, a cathode bath 02 and an ion exchange membrane 03 which is positioned between the anode bath 01 and the cathode bath 02 and separates the anode bath 01 and the cathode bath 02; the ion exchange membrane 03 herein may be a proton exchange membrane.

A cathode B located in the cathode tank 02 for collecting hydrogen ions; the cathode bath 02 uses a high-valence ion solution of variable-valence ions having a stronger oxidizing property than hydrogen and a weaker oxidizing property than oxygen as an electrolyte;

the anode A is positioned in the anode tank 01 and used for gathering oxygen ions;

the gas input pipeline 04 extends into the cathode tank 02 and is used for introducing oxygen into the cathode tank 02; wherein the content of the first and second substances,

when current is applied to the anode A and the cathode B, water molecules in the electrolytic cell are ionized to form H⁺And OH^-Ions, OH^-Gather to the anode A, release electrons, and be oxidized to form O₂Gas, H⁺Moves to the cathode B for aggregation, and meanwhile, in the cathode tank 02, ions with high valence state are aggregated to the cathode B, absorb electrons of the cathode B and are reduced into elements with low valence state, H⁺Can not be reduced to form H₂A gas; at the same time, oxygen and H in solution₂O reoxidizes the lower valency elements to the higher valency ions.

Referring to fig. 1 and 2, one end of the gas input pipe 04 is connected to the mechanical pump 07, and the other end is located at the bottom of the cathode tank 02, so that the gas introduced into the cathode tank 02 floats upwards from the bottom, the contact area and contact uniformity of the gas and the electrolyte are increased, and the reaction is more sufficient. Further, the other end of the gas input pipeline 04 is connected with a microporous part 05, and the microporous part 05 is provided with a plurality of pores; the other end of the gas input conduit 04 is inserted into the interior of the microporous member 05 so that the gas input conduit 04 communicates with the pores within the microporous member 05. Specifically, the microporous component 05 comprises a microporous structure 501 and a joint 502, an air passage 503 is arranged inside the joint 502, and the other end of the gas input pipeline 04 is inserted into the air passage 503; the micropores of the microporous structure 501 communicate with the air passages 503. The gas enters the microporous part 05, is uniformly refined and then enters the cathode tank 02, so that the gas can be more fully combined with the electrolyte, and the reaction rate and the reaction effect are improved. Preferably, the microporous member 05 may be made of a microporous ceramic such as tourmaline.

Here, the variable valence ion is one or more of main group III ion, main group IV ion, main group VII ion, transition group metal ion, lanthanide ion, preferably, the transition group metal ion is one or more of sub-groups I, II, IV, V, VI, VII, VIII; for example, the higher valence of the variable valence ion is Pd²⁺,Br⁰,Tl³⁺，Ti⁴⁺,V⁴⁺,Cr⁶⁺,Mn⁷⁺, Fe³⁺,Mo⁶⁺,Bi³ ⁺,Cu²⁺,Zn²⁺,Ce⁴⁺,Ge⁴⁺,Au³⁺,Pt²⁺,Ag⁺One or more of (a) and (b), correspondingly, the element of lower valence is Pd⁰,Br^-,Tl⁰，Ti³⁺,V³⁺,Cr³⁺,Mn³⁺,Fe²⁺,Mo⁰,Bi⁰,Cu⁰,Zn⁰,Ce³⁺,Ge⁰,Au⁰,Pt⁰,Ag⁰One or more of (a). In addition, the high valency ionic solution of variable valency ions can be sulfate, phosphate, hypochlorite, variable valency metal acid, such as PtCl₄ ^2-，AuCl₄ ^-，MnO₄ ^-，VO₂ ⁺Etc., or nitrate radical.

Here, the process of generating oxygen in the electrolytic cell 00 will be described in detail. Wherein, with R^x+Represents a higher valence state of an element, R^y ⁺Represents the lower valence state of the element, wherein x is a positive integer and y is a non-negative positive number.

Anode: h₂O＝O₂+ZH⁺+Ze^-；

Cathode: MR^x++Z e^-＝{(Mx-Z)/y}R^y+；

The general formula: h₂O+MR^x+＝{(Mx-Z)/y}R^y++O₂+ZH⁺。

When the anode A and the cathode B are energized, a DC power supply H is generally applied₂Electrolysis of O at anode A to produce H⁺And O₂、e^-，H⁺Moving the aggregate to the cathode B and passing through an ion exchange membrane; at R^x+Ions are gathered at the cathode B and are better than H⁺Rush to e^-Is reduced to R^y ⁺Thereby inhibiting H⁺Generation of H₂. Therefore, air may be directly introduced into the gas inlet pipe 04. Air can supply oxygen into the cathode bath 02 and ensure a low oxygen concentration, which is advantageous for the cathode B reaction.

In addition, in this embodiment, still set up waterproof heating element 08 on negative pole groove 02, the preferred can set up on the lateral wall of negative pole groove 02 for electrolyte in negative pole groove 02 has certain temperature, thereby promotes the above-mentioned low valence state of the element that is reduced and oxidizes to the high valence state once more, realizes the cyclic utilization of material, avoids the process of constantly adding the electrolyte raw materials, greatly reduced the cost, practiced thrift the energy. Preferably, the waterproof heating part 08 includes a waterproof case and a heating wire disposed in the waterproof case. The heating wire is connected to a waterproof wire so that the waterproof heating part 08 can be completely placed in the electrolyte. Of course, the waterproof housing must be sealed. Note that the heating member 08 may be provided on the inner wall and/or the outer wall of the cathode tank 02.

Although the present invention has been described with reference to the preferred embodiments, which are given by way of illustration only, and not by way of limitation, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An apparatus for producing oxygen by electrolyzing water, comprising:

2. The apparatus of claim 1, wherein the gas input line is connected to a mechanical pump at one end and is positioned at the bottom of the cathode chamber at the other end.

3. The apparatus for producing oxygen by electrolyzing water according to claim 2, wherein the other end of the gas input pipe is connected with a microporous member having a plurality of pores; the other end of the gas input pipeline is inserted into the microporous part, so that the gas input pipeline is communicated with the pore in the microporous part.

4. The apparatus for electrolyzing water to produce oxygen of claim 1, wherein the side wall of the cathode trough is provided with heating elements.

5. The apparatus for producing oxygen by electrolyzing water as recited in claim 4, wherein the heating element is a constant temperature heating wire.

6. The apparatus of claim 1, wherein a direct current power source is applied between the anode and the cathode.

7. The apparatus of claim 1, wherein the ion exchange membrane is a proton exchange membrane.

8. The apparatus of claim 1, wherein the gas input line is vented to air.