CN217164353U

CN217164353U - High-efficient photocatalytic hydrogen production reaction system

Info

Publication number: CN217164353U
Application number: CN202123416660.2U
Authority: CN
Inventors: 周桐; 赵建红
Original assignee: Nanjing Xuhydrogen New Material Technology Co ltd
Current assignee: Nanjing Xuhydrogen New Material Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-12
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a high-efficient photocatalytic hydrogen production reaction system, place the quartzy reaction flask of cavity in with including the cavity, the central authorities of cavity are provided with the center lamp pole, the outside of cavity is provided with the heat preservation shell layer, the top of cavity and the inboard of lateral wall and the outside of center lamp pole all is provided with the light reflection coating, evenly distributed has the LED lamp source on the light reflection coating, the lateral wall of cavity still is provided with the circulation water layer between heat preservation shell layer and light reflection coating, the bottom of cavity is provided with magnetic stirring base, the top of magnetic stirring base is arranged in to quartzy reaction flask, the bottom of quartzy reaction flask embeds there is the magnon. The utility model discloses can realize accurate temperature control and light source luminous power's control, not only can realize the hydrogen of continuous light and heat coupling, still can calculate the quantum productivity of hydrogen, can satisfy research demand of scientific research and pilot plant production demand simultaneously, and the temperature is through the hot circulating water control of solar energy collection production, and is energy-concerving and environment-protective.

Description

High-efficient photocatalytic hydrogen production reaction system

Technical Field

The utility model belongs to new forms of energy preparation field, concretely relates to hydrogen reaction system is produced to high-efficient photocatalysis.

Background

Energy and the environment have been two global problems that plague mankind for a long time. On the one hand, the increasing demand for global economy and materials has led to a cross-growth in energy consumption. On the other hand, energy consumption causes serious environmental pollution, and causes the environment to suffer from the 'omnibearing' harm of pollution of atmosphere, water and soil. The over-utilization of fossil fuels is also accompanied by a large amount of anthropogenic carbon dioxide emissions, resulting in adverse changes in the global environment. Hydrogen energy, as a clean energy source, has many advantages, it has good combustion performance, is non-toxic and harmless, and has the highest energy density (142 MJ/kg). When the hydrogen is combusted, pollutants such as carbon monoxide, carbon dioxide, hydrocarbon, lead or dust and the like are not generated except water and a small amount of hydrogen nitride. Furthermore, it can be present in the form of a gas, liquid or solid metal hydride and can therefore be adapted to different storage and transport requirements and to various application environments. Therefore, hydrogen energy will be the most ideal alternative to fossil energy in the future. In industry, hydrogen production still relies primarily on coal, oil, natural gas, and will inevitably produce greenhouse gases and pollutants. Therefore, it is important to develop clean, low cost technologies to facilitate the production of hydrogen energy. The photocatalysis technology can convert light energy into chemical energy through a proper photocatalyst, wherein the hydrogen energy is obtained by utilizing the light energy in the process of photolysis of water to produce hydrogen, and the whole process is clean and efficient. The hydrogen production reaction by photolysis is an endothermic reaction, and heat energy is supplied in the reaction process to accelerate the mass transfer process of the reaction and accelerate the reaction process.

Most of the existing photolysis water hydrogen production reaction devices are used in laboratories and are used at normal temperature. A small number of the reactors are heated by externally connected circulating water, and a circulating water layer is arranged on the reactor, so that the illumination area and the illumination mode of the reactor are limited, a light source cannot be fully utilized, and energy waste to a certain degree is caused. Secondly, the technology of photolysis hydrogen production is increasingly perfect, the recent trend is toward industrialization, and hydrogen production reactors used in laboratories cannot meet the requirements.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a high-efficient photocatalysis hydrogen production reaction system.

In order to achieve the above purpose, the utility model discloses the technical scheme who takes does:

the utility model provides a high-efficient photocatalytic hydrogen production reaction system, places the quartz reaction bottle of cavity in with in, the central authorities of cavity are provided with the center lamp pole, the outside of cavity is provided with the heat preservation shell layer, the top of cavity and the inboard of lateral wall and the outside of center lamp pole all is provided with the light reflection coating, evenly distributed has the LED lamp source on the light reflection coating, the lateral wall of cavity still is provided with the circulation water layer between heat preservation shell layer and light reflection coating, the bottom of cavity is provided with magnetic stirring base, the top of magnetic stirring base is arranged in to the quartz reaction bottle, the bottom of quartz reaction bottle embeds there is the magnon.

Preferably, the number of the quartz reaction bottles is multiple, and the quartz reaction bottles are connected through PVC connecting pipes.

More preferably, two openings are arranged above each quartz reaction bottle, and are used for connecting the quartz reaction bottles together in series, feeding and discharging, and gas replacement before reaction and hydrogen gas export after reaction.

More preferably, the number of the stirring bases is the same as the number of the quartz reaction bottles.

Preferably, the circulating water layer is disposed around the entire side wall of the chamber.

More preferably, the circulating water is obtained by solar heat collection.

Preferably, the LED light source is monochromatic light.

More preferably, the wavelength of the LED light source includes 265nm to 780 nm.

Preferably, the cavity is a cylindrical cavity.

Compared with the prior art, the utility model discloses following profitable technological effect has at least:

1. the utility model discloses a heat preservation cavity and circulating water layer can provide heat energy for the hydrogen reaction, and the reaction process accelerates, and heat energy derives from solar energy collection, does not need extra energy resource consumption. The circulating water is arranged in the heat-insulating cavity instead of on the reaction bottle, so that the effective irradiation area of the light source on the reaction bottle is increased, and the absorption of the photocatalyst in the reaction bottle to light is not influenced.

2. The utility model discloses a cavity inner wall is scribbled light reflection coating, can be to the light abundant, utilize repeatedly, the lamp source is the LED lamp, long-lived, stability is good, and evenly distributed is in the cavity inner wall, the lamp source is monochromatic light, its wavelength can be adjusted according to photocatalyst, choose the best response wavelength of photocatalyst for use, the energy has been avoided extravagant, therefore, the design of light reflection coating and LED lamp source has improved the utilization ratio that photocatalyst was to the light, obtain higher hydrogen production volume under the condition that equal energy drops into.

3. The utility model discloses a reaction flask easy dismouting, convenient to use. The specification and the size of the whole reaction system can be adjusted as required, the high-efficiency hydrogen production from room temperature to high temperature and from a laboratory stage to a Chinese production stage is met, and the number of reaction bottles can be increased or decreased as required.

In a word, the utility model discloses a light and heat coupling catalysis hydrogen manufacturing provides an effective sustainable middle-size and small-size reaction system, can realize accurate temperature control and light source luminous power's control, not only can realize continuous light and heat coupling hydrogen production, still can calculate the quantum yield of hydrogen production, can satisfy research demand of scientific research and pilot scale production demand simultaneously, and the temperature passes through the hot circulating water control of solar energy collection production, and is energy-concerving and environment-protective.

Drawings

FIG. 1 is a front cross-sectional view of the high-efficiency photocatalytic hydrogen production reaction system of the present invention.

FIG. 2 is a top view of the high-efficiency photocatalytic hydrogen production reaction system.

Description of reference numerals:

1. a heat preservation shell layer; 2. circulating the water layer; 3. a light reflective coating; 4, LED lamp source; 5. a stirring base; 6, PVC connecting pipes; 7. an opening; 8. a quartz reaction bottle; 9. a center light post; 10. and (4) magnetons.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and the accompanying drawings, and the following embodiments will help those skilled in the art to further understand the present invention, but not limit the present invention in any way. It should be noted that numerous variations and modifications could be made to the device without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "above", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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, unless expressly stated or limited otherwise, the terms "connected" and the like are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; they may be directly connected to each other, indirectly connected to each other through an intermediate member, or connected to each other through the inside of two members. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, if no special description is given, all the components used in the following embodiments are existing components, and the corresponding connection manner thereof can also be implemented by conventional technical means, and will not be described in detail in this application.

Examples

As shown in fig. 1 and fig. 2, the utility model provides a high-efficient photocatalytic hydrogen production reaction system, place 4 quartz reaction bottles 8 of cavity in including columniform cavity with in, wherein:

the central authorities of cavity are provided with center lamp pole 9, the outside of cavity (including the side and upper and lower bottom surface) is provided with heat preservation shell 1, the top of cavity and the inboard of lateral wall and the outside of center lamp pole 9 all are provided with light reflection coating 3, evenly distributed has LED lamp source 4 on the light reflection coating 3, LED lamp source 4 is monochromatic light, its wavelength can be according to the best response wavelength setting of photocatalyst, avoid the energy extravagant, include but not be limited to 265nm ~ 780nm, photon accessible light reflection coating 3 can be abundant, recycle, improve the utilization ratio of light, practice thrift the cost.

The side wall of the cavity is also provided with a circulating water layer 2 between the heat-insulating shell layer 1 and the light-reflecting coating layer 3, the circulating water layer 2 is arranged around the side wall of the whole cavity, and circulating water is obtained in a solar heat collection mode without extra energy consumption.

The bottom of cavity is provided with stirring base 5, and stirring base 5 is magnetic stirring base, and correspondingly, the bottom of quartzy reaction flask 8 is built-in to have magneton 10 and places in the top of stirring base 5, and magnetic stirring base collocation magneton makes catalyst and reaction liquid intensive mixing in the catalytic reaction in-process to increase the area of contact of catalyst and reaction liquid. Two openings 7 are arranged above the quartz reaction bottles 8 and used for connecting the quartz reaction bottles together in series, feeding and discharging materials, gas replacement before reaction and hydrogen derivation after reaction, and the quartz reaction bottles 8 are connected through PVC connecting pipes 6. The quartz reaction bottles can be connected in series for use and can also be used independently, the number of the quartz reaction bottles is not limited to 4, and the quartz reaction bottles can be increased or decreased as required.

The utility model discloses a concrete working process: and (2) switching on hot circulating water in advance, adding a photocatalyst and a reaction solution into the quartz reaction bottles according to a certain proportion, connecting the quartz reaction bottles in series through PVC connecting pipes and vacuumizing if the same reaction is carried out in different quartz reaction bottles, sealing the quartz reaction bottles, opening the stirrer and the LED lamp source, covering a cover plate at the top of the cylindrical cavity, and starting the hydrogen production reaction. In the using stage of a laboratory, the generated gas can be introduced into a gas chromatograph through an opening on the upper part of a quartz reaction bottle for component and content analysis; if the method is a Chinese production stage, the generated gas can be filled and collected after impurities are removed.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention more clearly, and are not limiting to the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above description, and all the embodiments cannot be exhaustive, and all the obvious variations or changes are still within the scope of the present invention.

Claims

1. The utility model provides a high-efficient photocatalytic hydrogen production reaction system, its characterized in that places the quartzy reaction flask of cavity in with including the cavity, the central authorities of cavity are provided with the center lamp pole, the outside of cavity is provided with the heat preservation shell layer, the top of cavity and the inboard of lateral wall and the outside of center lamp pole all is provided with the light reflection coating, evenly distributed has the LED lamp source on the light reflection coating, the lateral wall of cavity still is provided with the circulation water layer between heat preservation shell layer and light reflection coating, the bottom of cavity is provided with magnetic stirring base, the top of magnetic stirring base is arranged in to the quartzy reaction flask, the bottom of quartzy reaction flask embeds there is the magnon.

2. The efficient photocatalytic hydrogen production reaction system according to claim 1, wherein a plurality of quartz reaction bottles are provided, and the quartz reaction bottles are connected through PVC connecting pipes.

3. The efficient photocatalytic hydrogen production reaction system according to claim 2, wherein two openings are arranged above each quartz reaction bottle and used for connecting the quartz reaction bottles in series, feeding and discharging materials, gas replacement before reaction and hydrogen gas discharge after reaction.

4. The high-efficiency photocatalytic hydrogen production reaction system according to claim 1 or 2, wherein the number of the stirring bases is the same as that of the quartz reaction bottles.

5. The high-efficiency photocatalytic hydrogen production reaction system as recited in claim 1, wherein the circulating water layer is disposed around the entire side wall of the cavity.

6. The high-efficiency photocatalytic hydrogen production reaction system according to claim 1 or 5, wherein the circulating water is obtained by a solar heat collection method.

7. The efficient photocatalytic hydrogen production reaction system according to claim 1, wherein the LED light source is monochromatic light.

8. The high-efficiency photocatalytic hydrogen production reaction system according to claim 1 or 7, wherein the wavelength of the LED light source comprises 265nm to 780 nm.

9. The high-efficiency photocatalytic hydrogen production reaction system according to claim 1, wherein the cavity is a cylindrical cavity.