CN214088678U

CN214088678U - Portable hydrogen generating device based on water free radical cation

Info

Publication number: CN214088678U
Application number: CN202022916348.9U
Authority: CN
Inventors: 米东伯; 毛逸轩; 刘坤; 揭非凡; 陈焕文
Original assignee: East China Institute of Technology
Current assignee: East China Institute of Technology
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-08-31
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a portable hydrogen generating device based on water free radical cation, its technical scheme main points are: the device comprises a shell, be equipped with the power in the casing, take the inlet end and give vent to anger the reaction chamber of end, be used for producing the benzene generator of benzene air current, be used for producing the deionized water generator of deionized water air current, benzene generator and deionized water generator all communicate to the inlet end of reaction chamber, the both sides of reaction chamber are equipped with anode plate and negative plate respectively, be equipped with many corona needles that set up towards the negative plate on the anode plate, anode plate and negative plate all with the power links to each other. Compared with the prior art, the hydrogen generating device is convenient to use, simple in hydrogen preparation conditions, high in hydrogen production concentration, low in energy consumption, free of dry burning and good in safety.

Description

Portable hydrogen generating device based on water free radical cation

Technical Field

The utility model relates to a technical field of the manufacturing of hydrogen, concretely relates to portable hydrogen generating device based on water free radical cation.

Background

The hydrogen is used as a green pollution-free clean energy source and has extremely wide application. However, the main principle of the conventional small-sized hydrogen generator is water electrolysis, and the method needs to consume a large amount of electric energy and has high hydrogen production cost. Meanwhile, water is required to be supplemented continuously for hydrogen production by water electrolysis, the electrolytic cell is easy to dry burn once water is consumed, and in addition, oxygen is generated in the hydrogen production process of hydrogen production by water electrolysis, so that potential safety hazards can be easily formed.

In addition, the traditional hydrogen generator can rapidly produce hydrogen only under the condition of a high-power supply, does not have the characteristic of portability, is difficult to use under the specific environment in which hydrogen production is urgently needed, and has poor practicability.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the problems that hydrogen production cost of a hydrogen generator in the prior art is high, potential safety hazards exist, and the hydrogen generator is portable and relatively poor in practicability are solved.

The technical scheme of the utility model is that: the utility model provides a portable hydrogen generating device based on water free radical cation, includes the casing, be equipped with the power in the casing, take the inlet end and give vent to anger the reaction chamber of end, be used for producing benzene generator, the deionized water generator that is used for producing the deionized water air current of air current, benzene generator and deionized water generator all communicate to the inlet end of reaction chamber, the both sides of reaction chamber are equipped with anode plate and negative plate respectively, be equipped with many corona needles that set up towards the negative plate on the anode plate, anode plate and negative plate all with the power links to each other.

According to the scheme, the corona electric field is formed in the reaction chamber, so that deionized water at the air inlet end of the reaction chamber can be ionized to form water radical cations, the water radical cations further react with benzene to generate hydrogen and phenol radical cations, the phenol radical cations are automatically adsorbed to the cathode plate under the action of the electric field, and the hydrogen can be discharged from the air outlet end after being separated and purified. Compared with the prior art, the hydrogen generating device is convenient to use, simple in hydrogen preparation conditions, low in energy consumption, free of dry burning and good in safety, and the hydrogen production concentration can reach more than 2000 ppm. In addition, the atom utilization rate in the reaction chamber is high, the Faraday efficiency of the generated phenol can reach 60 percent, and the phenol free radical cations are automatically adsorbed to the cathode plate under the action of an electric field, so that the environmental pollution is avoided, and the problem of excess acetone productivity in the traditional cumene method is effectively solved.

Preferably, the length of the corona needle is 7-75 millimeters, the diameter of the corona needle is 150-350 micrometers, and the curvature radius of the needle point of the corona needle is 7.5-17.5 micrometers, so that the generation of a corona electric field for promoting the reaction of deionized water and benzene is facilitated.

Preferably, the distance between the needle point of the corona needle and the cathode plate is 5-20 mm, the voltage difference between the anode plate and the cathode plate is 0-2.5 kV, the ionic strength of water free radical cations formed by ionization is kept at a high level, and the hydrogen production efficiency is accelerated.

Preferably, the cathode plate comprises an insulating plate, and the surface of the insulating plate is wrapped by copper foil paper, so that the phenol radical cations can form crystal spots on the surface of the copper foil paper.

Preferably, the device also comprises a tail gas absorber, wherein the tail gas absorber comprises a tail gas cylinder filled with absorption liquid, a gas inlet pipe connected to the gas outlet end of the reaction chamber and a gas outlet pipe communicated to the outside, the gas inlet pipe of the tail gas absorber is communicated to the position below the liquid level of the absorption liquid, and the gas outlet pipe is communicated to the position above the absorption liquid, so that the gas at the gas outlet end of the reaction chamber is further purified, and the tail gas pollution is prevented.

Preferably, a gas flowmeter is arranged on a gas outlet pipe of the tail gas cylinder.

Preferably, the device also comprises an air pump, the benzene generator comprises a benzene liquid bottle filled with benzene liquid, an air inlet pipe for supplying air through the air pump and an air outlet pipe communicated to the reaction chamber, and the air inlet pipe and the air outlet pipe of the benzene generator are both communicated above the benzene liquid; the deionized water generator comprises a deionized water bottle filled with deionized water, an air inlet pipe for supplying air through an air pump and an air outlet pipe connected to the reaction chamber, wherein the air inlet pipe of the deionized water generator is communicated to the position below the liquid level of the deionized water, and the air outlet pipe is communicated to the position above the deionized water.

Preferably, the air pump is provided with filter cotton to prevent impurities from entering the reaction chamber.

Preferably, the gas pump is provided with a gas flowmeter so as to quantitatively control the preparation of the hydrogen.

Preferably, the shell is further provided with an observation window arranged on the positive liquid-para-benzene bottle and/or the deionized water bottle.

Drawings

Fig. 1 is a disassembled schematic view of a portable hydrogen generating device based on water radical cation of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the reaction chamber of a portable water-based radical cation hydrogen generator of the present invention;

FIG. 3 is a logic flow diagram of a portable hydrogen generator based on water radical cations according to the present invention;

in the drawings: 1-a shell; 1.1-observation window; 2-deionized water bottle; 3-benzene liquid bottle; 4-a reaction chamber; 4.1-anode plate; 4.2-cathode plate; 4.3-corona needle; 5-tail gas cylinder; 5.1-hydrogen gas outlet; 6-air pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, an embodiment of the present invention provides a portable hydrogen generator based on water radical cation, which comprises a housing 1, a power supply is arranged in the housing 1, a reaction chamber 4 with an air inlet end and an air outlet end is provided, a benzene generator 3 for generating benzene airflow, a deionized water generator 2 for generating deionized water airflow, the benzene generator 3 and the deionized water generator 2 are both communicated to the air inlet end of the reaction chamber 4, two sides of the reaction chamber 4 are respectively provided with an anode plate 4.1 and a cathode plate 4.2, the anode plate 4.1 is provided with a plurality of corona needles 4.3 arranged towards the cathode plate 4.2, and the anode plate 4.1 and the cathode plate 4.2 are both connected with the power supply.

According to the scheme, the corona electric field is formed in the reaction chamber 4, so that deionized water at the air inlet end of the reaction chamber 4 can be ionized to form water radical cations, the water radical cations further react with benzene to generate hydrogen and phenol radical cations, the phenol radical cations are automatically adsorbed to the cathode plate 4.2 under the action of the electric field, and the hydrogen can be discharged from the air outlet end after being separated and purified.

In the embodiment, the length of the corona needle 4.3 is 7-75 mm, the diameter of the corona needle 4.3 is 150-350 microns, and the curvature radius of the needle point of the corona needle 4.3 is 7.5-17.5 microns, so that the generation of a corona electric field for promoting the reaction of deionized water and benzene is facilitated.

The voltage difference between the anode plate 4.1 and the cathode plate 4.2 in the reaction chamber 4 is 0-2.5 kV, otherwise, if the voltage difference between the anode plate and the cathode plate is too large, water radical cations may be cracked, and meanwhile, non-reactive impurity ions such as protonated water clusters and the like are increased to cause the hydrogen production effect to be poor.

The distance between the needle point of the corona needle 4.3 on the anode plate 4.1 and the cathode plate 4.2 is controlled to be 5-20 mm. If the distance between the anode plate 4.1 and the cathode plate 4.2 is too large, the ionic strength of the water radical cations is reduced due to the reduction of the ion transport efficiency, which affects the hydrogen generation efficiency.

Through the distance and voltage difference setting of the anode plate 4.1 and the cathode plate 4.2 of the reaction chamber 4, the ionic strength of water free radical cations formed by ionization is guaranteed to be kept at a high level, and the yield efficiency of hydrogen is accelerated.

The cathode plate 4.2 comprises an insulating plate, and the surface of the insulating plate is wrapped by copper foil paper, so that phenol radical cations can form crystal spots on the surface of the copper foil paper. The crystal spots generated by multiple reactions are collected, separated and recrystallized, so that the byproduct phenol crystal can be obtained, the process is a new process for directly oxidizing benzene into phenol in one step, the Faraday efficiency of the phenol can reach 60 percent, and the problem of excess acetone productivity in the traditional cumene method is effectively solved.

The gas outlet end of the reaction chamber 4 can be further provided with a tail gas absorber 5, and the tail gas absorber 5 comprises a tail gas bottle filled with absorption liquid, a gas inlet pipe connected to the gas outlet end of the reaction chamber 4 and a gas outlet pipe communicated to the hydrogen gas outlet 5.1. The absorption liquid may be water or an organic solvent. The gas inlet pipe of the tail gas absorber 5 is communicated to the lower part of the liquid level of the absorption liquid, and the gas outlet pipe is communicated to the upper part of the absorption liquid. And the trace benzene or phenol in the gas discharged from the gas outlet end of the reaction chamber 4 can be fully absorbed by the absorption liquid in the tail gas bottle, so that the tail gas pollution is further prevented.

In this embodiment, the benzene generator 3 comprises a benzene solution bottle containing benzene solution, an air inlet pipe for supplying air through an air pump 6, and an air outlet pipe communicated to the reaction chamber 4, wherein both the air inlet pipe and the air outlet pipe of the benzene generator 3 are communicated above the benzene solution to obtain benzene-containing air flow with appropriate concentration; the deionized water generator 2 comprises a deionized water bottle filled with deionized water, an air inlet pipe for supplying air through an air pump 6 and an air outlet pipe connected to the reaction chamber 4, wherein the air inlet pipe of the deionized water generator 2 is communicated to the position below the liquid level of the deionized water, and the air outlet pipe is communicated to the position above the deionized water, so that airflow containing the deionized water with proper concentration can be obtained. Of course, the air inlet pipe and the air outlet pipe of the benzene generator 3 or the deionized water generator 2 can be arranged in other ways according to actual needs to obtain air flows containing benzene or deionized water with other concentrations.

As shown in fig. 1, the air pump 6 uses the external air as the carrier gas, the carrier gas is firstly introduced into the deionized water bottle, the benzene liquid bottle is further introduced from the outlet pipe of the deionized water bottle, and then the corona electric field entering the reaction chamber 4 from the outlet pipe of the benzene liquid bottle is used for reaction to produce hydrogen, thereby forming a series connection mode, leading the deionized water and the benzene in the carrier gas to be mixed more uniformly, promoting the collision reaction of the deionized water and the benzene in the reaction chamber 4, and simultaneously leading the preparation of the deionized water airflow and the benzene airflow to be simple and convenient to supplement. It should be noted that the benzene liquid bottle and the deionized water bottle can be connected to the inlet of the reaction chamber 4 not only in series, but also in parallel.

The air pump 6 is provided with filter cotton to prevent impurities from entering the reaction chamber 4.

The gas pump 6 is provided with a gas flowmeter, and the gas outlet pipe of the tail gas cylinder can also be provided with a gas flowmeter so as to quantitatively control the preparation of the hydrogen.

Compared with the prior art, the utility model discloses a hydrogen generating device convenient to use, the preparation condition of hydrogen is simple, and the hydrogen concentration of producing can reach more than 2000ppm, and the energy consumption is low and can not take place dry combustion method, and the security is good. In addition, the Faraday efficiency of the phenol generated by the reaction can reach 60 percent, the atom utilization rate is high, and no environmental pollution is caused.

The present invention has been described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a portable hydrogen generating device based on water free radical cation, includes the casing, its characterized in that, be equipped with the power in the casing, take the inlet end and give vent to anger the reaction chamber of end, be used for producing the benzene generator of benzene air current, be used for producing the deionized water generator of deionized water air current, benzene generator and deionized water generator all communicate to the inlet end of reaction chamber, the both sides of reaction chamber are equipped with anode plate and negative plate respectively, be equipped with many corona needles that set up towards the negative plate on the anode plate, anode plate and negative plate all with the power links to each other.

2. The portable hydrogen generating device based on water free radical cations as claimed in claim 1, wherein the length of the corona needle is 7-75 mm, the diameter of the corona needle is 150-350 μm, and the radius of curvature of the tip of the corona needle is 7.5-17.5 μm.

3. The portable hydrogen generating device based on water free radical cations as claimed in claim 1, wherein the distance between the needle point of the corona needle and the cathode plate is 5-20 mm, and the voltage difference between the anode plate and the cathode plate is 0-2.5 kV.

4. The portable water radical cation-based hydrogen generating device as claimed in claim 1, wherein the cathode plate comprises an insulating plate, and the surface of the insulating plate is wrapped with copper foil paper.

5. The portable hydrogen generating device based on water radical cations according to any one of claims 1 to 4, further comprising a tail gas absorber, wherein the tail gas absorber comprises a tail gas cylinder filled with absorption liquid, a gas inlet pipe connected to the gas outlet end of the reaction chamber and a gas outlet pipe communicated to the outside, the gas inlet pipe of the tail gas absorber is communicated to the position below the liquid level of the absorption liquid, and the gas outlet pipe is communicated to the position above the absorption liquid.

6. The portable hydrogen generating device based on water radical cations according to claim 5, wherein a gas flowmeter is arranged on the gas outlet pipe of the tail gas cylinder.

7. The portable hydrogen generating device based on water radical cations according to any one of claims 1 to 4, further comprising an air pump, wherein the benzene generator comprises a benzene liquid bottle filled with benzene liquid, an air inlet pipe for supplying air through the air pump and an air outlet pipe communicated to the reaction chamber, and the air inlet pipe and the air outlet pipe of the benzene generator are both communicated above the benzene liquid; the deionized water generator comprises a deionized water bottle filled with deionized water, an air inlet pipe for supplying air through an air pump and an air outlet pipe connected to the reaction chamber, wherein the air inlet pipe of the deionized water generator is communicated to the position below the liquid level of the deionized water, and the air outlet pipe is communicated to the position above the deionized water.

8. The portable water radical cation-based hydrogen generating device according to claim 7, wherein the air pump is provided with filter cotton.

9. The portable water radical cation-based hydrogen generating device according to claim 7, wherein a gas flow meter is provided on the gas pump.

10. The portable water radical cation-based hydrogen generating device as claimed in claim 7, wherein the housing further has a viewing window for a positive liquid benzene bottle and/or a deionized water bottle.