阅读说明：本技术 一种水解制氢系统 (Hydrolysis hydrogen production system ) 是由 魏存弟 刘州 高钱 安琦 刘丹 刘锐超 于 2018-05-31 设计创作，主要内容包括：本发明公开了一种水解制氢系统,所述水解制氢系统包括反应容器、输水装置、进水管、出水管和第一过滤装置；其中,所述反应容器上设有氢气出口、内部设有置物架,用于搁置待进行水解制氢的反应物块并使所述反应物块与所述反应容器的底部之间留有距离；所述进水管的第一端位于所述反应容器内、第二端连接至所述输水装置的进水口,所述第一过滤装置设置于所述进水管的第一端；所述出水管的第一端连接至所述输水装置的出水口、第二端位于所述反应容器内置物架的上方。本发明所提供的制氢装置具有结构简单,制氢速率可控,供氢速率平稳,响应时间短,无污染,安全可控等优点,适合为氢燃料电池以及其它需氢装置提供氢源。(The invention discloses a hydrolysis hydrogen production system, which comprises a reaction container, a water delivery device, a water inlet pipe, a water outlet pipe and a first filtering device, wherein the reaction container is used for accommodating a water inlet pipe; the reaction container is provided with a hydrogen outlet, a storage rack is arranged in the reaction container and used for holding a reactant block to be hydrolyzed to prepare hydrogen, and a distance is reserved between the reactant block and the bottom of the reaction container; the first end of the water inlet pipe is positioned in the reaction container, the second end of the water inlet pipe is connected to the water inlet of the water delivery device, and the first filtering device is arranged at the first end of the water inlet pipe; the first end of the water outlet pipe is connected to the water outlet of the water delivery device, and the second end of the water outlet pipe is positioned above the storage rack in the reaction container. The hydrogen production device provided by the invention has the advantages of simple structure, controllable hydrogen production rate, stable hydrogen supply rate, short response time, no pollution, safety, controllability and the like, and is suitable for providing hydrogen sources for hydrogen fuel cells and other hydrogen-requiring devices.)

1. A hydrolysis hydrogen production system is characterized by comprising a reaction container, a water delivery device, a water inlet pipe, a water outlet pipe and a first filtering device; the reaction container is provided with a hydrogen outlet, a storage rack is arranged in the reaction container and used for holding a reactant block to be hydrolyzed to prepare hydrogen, and a distance is reserved between the reactant block and the bottom of the reaction container; the first end of the water inlet pipe is positioned in the reaction container, the second end of the water inlet pipe is connected to the water inlet of the water delivery device and used for delivering water at the lower part of the reaction container to the water delivery device, and the first filtering device is arranged at the first end of the water inlet pipe; the first end of the water outlet pipe is connected to the water outlet of the water delivery device, and the second end of the water outlet pipe is located above the storage rack in the reaction container and used for spraying the outlet water from the water delivery device to the reactant blocks on the storage rack.

2. The system for hydrolysis hydrogen production according to claim 1, further comprising a first gas pipe, a gas bag, and a second gas pipe; one end of the first gas transmission pipe is communicated with the reaction container through the hydrogen outlet, and the other end of the first gas transmission pipe is connected to the gas bag and used for transmitting the hydrogen from the reaction container into the gas bag; one end of the second gas transmission pipe is connected to the air bag and used for transmitting the hydrogen in the air bag.

3. The system for hydrogen production by hydrolysis as claimed in claim 2, wherein the first gas transmission pipe is further provided with a one-way valve and a dryer for drying gas in the first gas transmission pipe.

4. The system for hydrolysis hydrogen production according to any one of claims 1 to 3, wherein a guide cylinder is further arranged in the reaction vessel along the longitudinal direction, the rack is fixed on the inner wall of the guide cylinder, the upper end of the guide cylinder is higher than the rack, and the lower part of the guide cylinder is communicated with the reaction vessel, so that water flowing down along the guide cylinder after hydrolysis hydrogen production reaction can flow into the reaction vessel.

5. The system for hydrolysis hydrogen production according to claim 4, wherein the lower end of the guide shell is connected to the bottom end of the reaction vessel, and one or more openings are formed in the side wall of the lower part of the guide shell for draining water; preferably, the rack is in a net shape or a grid shape.

6. The system for hydrogen production by hydrolysis according to any one of claims 1 to 5, wherein a baffle is arranged right below the hydrogen outlet, and the baffle is higher than the guide cylinder and is used for deflecting at least part of hydrogen to be discharged and then discharging the hydrogen through the hydrogen outlet.

7. The system for hydrogen production by hydrolysis according to claim 6, wherein the hydrogen outlet is arranged at the top of the reaction vessel, one end of the first gas pipe connected to the hydrogen outlet extends into the reaction vessel, and the baffle plate is arranged perpendicular to one end of the first gas pipe extending into the reaction vessel.

8. The system for hydrogen production by hydrolysis according to any one of claims 1 to 7, wherein the water inlet pipe is further provided with a second filtering device for further filtering the water entering the water inlet pipe after being filtered by the first filtering device.

9. The system for hydrolysis hydrogen production according to any one of claims 1 to 8, wherein a pressure gauge and a gas valve are further sequentially arranged on the second gas transmission pipe along the gas flow direction.

10. The system for hydrogen production by hydrolysis according to any one of claims 1 to 9, wherein the first filtering means is a 200 mesh filter cloth fitted over the first end of the water inlet pipe.

Technical Field

The invention discloses a safe, controllable and multipurpose simple hydrolysis hydrogen production system, and belongs to the field of hydrolysis hydrogen production.

background

The hydrogen energy is used as a high-efficiency pollution-free clean energy and has wide application in the fields of transportation, national defense and military industry, metal cutting and the like. The hydrogen energy has the advantages of good combustion performance, high heat value, no toxicity and pollution of combustion products, high utilization rate, capability of reducing greenhouse effect and the like, and is efficient and clean energy to be popularized and used in countries in the world of the 21 st century.

The proton exchange membrane battery taking hydrogen as fuel has very high conversion efficiency, the conversion rate can reach about 70 percent, which is higher than the best internal combustion engine (40 percent) at present; meanwhile, the power supply has the advantages of long service life, high specific power, environmental friendliness and the like, and is considered to be an ideal mobile power supply. In recent years, a large number of hydrogen production technologies and hydrogen production devices related to borohydride and metal aluminum-based materials are internationally reported, and the development and application of proton exchange membrane batteries are greatly promoted. Meanwhile, in a plurality of hydrogen production technologies, the metal aluminum has the advantages of rich resources, wide sources, high hydrogen production (1245ml/1g Al), mild reaction conditions, recyclable products, no toxicity, no pollution and the like. The borohydride, especially the representative sodium borohydride (NaBH4), contains 10.6 wt% of hydrogen, can react with water to release all hydrogen, and the reaction conditions are simple and relatively easy to control.

In order to meet the requirements of proton exchange membrane batteries and other equipment on hydrogen, a safe and controllable hydrogen production device is urgently needed to be developed. The relevant hydrogen production device is prepared, and the continuous and stable hydrogen can be produced by controlling the reaction conditions to supply to the proton exchange membrane cell and other hydrogen-requiring devices which take the hydrogen as the raw material.

The hydrogen production materials such as aluminum alloy and hydroboron which are used as raw materials react with water to produce hydrogen, so that the hydrogen production device has many advantages, but is safe and controllable and has a simple structure. Although some hydrogen preparation devices at home and abroad are reported at present, the hydrogen preparation devices still have the defects of incomplete controllability, complex structure, a large number of auxiliary components and the like, and are inconvenient in practical application.

Disclosure of Invention

In view of the above, the present invention is directed to a system for hydrogen production by hydrolysis, so as to stably, safely and smoothly deliver hydrogen to a hydrogen consuming device.

In order to achieve the purpose, the invention adopts the following technical scheme:

A hydrolysis hydrogen production system comprises a reaction container, a water delivery device, a water inlet pipe, a water outlet pipe and a first filtering device; the reaction container is provided with a hydrogen outlet, a storage rack is arranged in the reaction container and used for holding a reactant block to be hydrolyzed to prepare hydrogen, and a distance is reserved between the reactant block and the bottom of the reaction container; the first end of the water inlet pipe is positioned in the reaction container, the second end of the water inlet pipe is connected to the water inlet of the water delivery device and used for delivering water at the lower part of the reaction container to the water delivery device, and the first filtering device is arranged at the first end of the water inlet pipe; the first end of the water outlet pipe is connected to the water outlet of the water delivery device, and the second end of the water outlet pipe is located above the storage rack in the reaction container and used for spraying the outlet water from the water delivery device to the reactant blocks on the storage rack.

According to the hydrolysis hydrogen production system, preferably, the hydrolysis hydrogen production system further comprises a first gas conveying pipe, an air bag and a second gas conveying pipe; one end of the first gas transmission pipe is communicated with the reaction container through the hydrogen outlet, and the other end of the first gas transmission pipe is connected to the gas bag and used for transmitting the hydrogen from the reaction container into the gas bag; one end of the second gas transmission pipe is connected to the air bag and used for transmitting the hydrogen in the air bag.

According to the hydrolysis hydrogen production system, preferably, the first gas transmission pipe is further provided with a one-way valve and a dryer for drying gas in the first gas transmission pipe.

According to the hydrolysis hydrogen production system, preferably, a guide cylinder is further longitudinally arranged in the reaction vessel, the shelf is fixed on the inner wall of the guide cylinder, the upper end of the guide cylinder is higher than the shelf, and the lower part of the guide cylinder is communicated with the reaction vessel, so that water flowing down along the guide cylinder after hydrolysis hydrogen production reaction can flow into the reaction vessel.

According to the hydrolysis hydrogen production system, the lower end of the guide shell is preferably connected to the bottom end of the reaction vessel, and one or more openings are formed in the side wall of the lower part of the guide shell so as to facilitate water drainage; preferably, the rack is in a net shape or a grid shape.

According to the hydrolysis hydrogen production system, a baffle is preferably arranged right below the hydrogen outlet, and the position of the baffle is higher than that of the guide cylinder, so that at least part of hydrogen to be discharged is baffled and then discharged through the hydrogen outlet.

According to the system for preparing hydrogen by hydrolysis, the hydrogen outlet is preferably arranged at the top of the reaction container, one end of the first gas pipe connected to the hydrogen outlet extends into the reaction container, and the baffle plate is perpendicular to one end of the first gas pipe extending into the reaction container.

According to the hydrolysis hydrogen production system, preferably, the water inlet pipe is further provided with a second filtering device for further filtering water entering the water inlet pipe after being filtered by the first filtering device.

According to the hydrolysis hydrogen production system, preferably, a pressure gauge and an air valve are further sequentially arranged on the second air delivery pipe along the air flow direction.

According to the hydrolysis hydrogen production system, preferably, the first filtering device is a layer of 200-mesh filter cloth sleeved on the first end of the water inlet pipe.

According to the invention, the reactant block and the water are separated, so that different water dropping rates can be set according to the hydrogen demand of the fuel cell and different hydrogen production raw materials to control the hydrogen production rate, and a safe and stable hydrogen supply effect is expected to be achieved. In addition, water at the bottom of the reaction vessel is recycled by filtration, which can further reduce the influence of reaction by-products to improve the sensitivity of hydrogen production rate control.

Compared with the similar hydrogen production devices, the hydrogen production device provided by the invention has the advantages of simple structure, controllable hydrogen production rate, stable hydrogen supply rate, short response time, no pollution, safety, controllability and the like, and is suitable for providing hydrogen sources for hydrogen fuel cells and other hydrogen-requiring devices.

Drawings

FIG. 1 is a schematic diagram of one embodiment of a hydrolysis hydrogen plant of the present invention.

Detailed Description

The present invention is further described below with reference to the accompanying drawings, but those skilled in the art will appreciate that the present invention is not limited thereto.

As shown in fig. 1, in one embodiment, the hydrolysis hydrogen production system comprises a reaction vessel 4, a water delivery device 1, a water inlet pipe 2, a water outlet pipe 3 and a first filtering device 21; wherein, the reaction vessel 4 is provided with a hydrogen outlet, for example, a hydrogen outlet arranged on the top or upper side wall of the reaction vessel, so as to discharge hydrogen obtained by hydrolysis hydrogen production.

A shelf 41 is arranged in the reaction vessel 4 and used for holding a reactant block 42 to be hydrolyzed to produce hydrogen and keeping a distance between the reactant block 42 and the bottom of the reaction vessel 4, so that the reactant block 42 can be kept above a water bath at the lower part of the reaction vessel 4 when the hydrolysis hydrogen production reaction is carried out; the reactant mass 42 may be those solid phase masses known in the art that can undergo a hydrolysis hydrogen production reaction, such as aluminum gallium indium tin alloy or sodium borohydride, among others; the rack 41 can be fixed inside the reaction vessel 4 in various ways to hold the reactant blocks 42, for example by welding to the inner wall of the reaction vessel 4 by brackets, as is well known in the art and will not be described in detail herein. In one embodiment, the rack 41 has a mesh or grid structure with gaps, so that the water after hydrolysis reaction with the reactant blocks 5 can smoothly flow downwards to the lower part of the reaction vessel 4 to be collected into a water bath instead of being collected at the rack 41, thereby better controlling the hydrolysis reaction.

In one embodiment, a guide cylinder 43 is further disposed in the reaction vessel 4 along the longitudinal direction, the rack 41 is fixed on the inner wall of the guide cylinder 43, and the upper end of the guide cylinder 43 is higher than the rack 41, so as to facilitate the hydrolysis reaction. The lower part of the guide cylinder 43 is communicated with the reaction vessel 4, so that water flowing down from the guide cylinder 43 after the hydrolysis hydrogen production reaction can flow into the reaction vessel 4. Preferably, the lower end of the guide shell 43 is connected to the bottom end of the reaction vessel 4 to close the lower end of the guide shell 43; the lower portion of the draft tube 43 is provided with one or more openings in the sidewall to facilitate drainage and to help reduce solid particles/sediment in the drained water.

In an embodiment, a baffle 44 is disposed right below the hydrogen outlet, and the baffle 44 is higher than the guide cylinder 43, so as to baffle at least part of the hydrogen to be discharged and discharge the hydrogen through the hydrogen outlet, so as to reduce moisture entrained in the hydrogen to be discharged, for example, when the hydrogen hydrolysis rate is high, the hydrogen has more moisture entrained therein, and the baffle 44 is configured to effectively remove the moisture therefrom. The baffle 44 may be flat or have an undulating or uneven structure formed thereon to enhance moisture removal.

The first end of the water inlet pipe 2 is positioned in the reaction vessel 4 to absorb water in the water bath at the lower part of the reaction vessel 4, and the second end of the water inlet pipe 2 is connected to the water inlet of the water delivery device 1 and is used for delivering the water at the lower part of the reaction vessel 4 into the water delivery device 1. The water delivery device 1 may be a water delivery device, a water pump, etc. commonly used in the art, and is well known in the art, such as a peristaltic pump, etc., and will not be described herein.

The first filtering device 21 is arranged at the first end of the water inlet pipe 2 to filter out at least part of particulate matters in the water to be sucked into the water inlet pipe; the first filtering device 21 may be a filtering device commonly used in the art, and in one embodiment, the first filtering device 21 is a layer of 200 mesh filtering cloth sleeved on the first end of the water inlet pipe 2. Preferably, the water inlet pipe 2 is further provided with a second filtering device 22 for further filtering the water entering the water inlet pipe 2 after being filtered by the first filtering device 21, and those skilled in the art understand that the filtering precision of the second filtering device 22 is preferably not less than that of the first filtering device 21.

The first end of the water outlet pipe 3 is connected to the water outlet of the water delivery device 1, and the second end is located above the shelf 41 in the reaction vessel 4, and is used for spraying the outlet water from the water delivery device 1 to the reactant block 42 on the shelf 4, so as to perform the hydrolysis hydrogen production reaction.

In one embodiment, the hydrolysis hydrogen production system further comprises a first gas conveying pipe 5, an air bag 7 and a second gas conveying pipe 6; one end of the first gas transmission pipe 5 is communicated with the reaction container 4 through the hydrogen outlet, and the other end of the first gas transmission pipe is connected to the airbag 7 and is used for transmitting the hydrogen from the reaction container 4 to the airbag 7; preferably, the first air pipe 5 is further provided with a one-way valve 51 and a dryer 52 for drying the air in the first air pipe 5. The balloon 7 is used for storing and moderating the produced hydrogen. One end of the second gas transmission pipe 6 is connected to the air bag 7 and used for transmitting the hydrogen in the air bag 7; preferably, a pressure gauge 71 and an air valve 72 are further sequentially arranged on the second air pipe 6 along the air flow direction so as to further detect and control the hydrogen flow from the air bag.

In a specific embodiment, the hydrogen outlet is preferably disposed at the top of the reaction container 4, one end of the first gas pipe 5 connected to the hydrogen outlet extends into the reaction container 4, and the baffle 41 and one end of the first gas pipe 5 extending into the reaction container 4 are vertically disposed to further improve the water vapor removal effect.

When the device is operated, a solid reactant block capable of producing hydrogen through hydrolysis is placed on the object placing plate, the water delivery device is started, water or water solution is sprayed onto the reactant block through the water outlet pipe, so that the hydrogen production through hydrolysis occurs, and the obtained hydrogen product is sent into the air bag from the first gas pipe and then sent out from the second gas pipe; the rest reaction products are flushed down by the unreacted water and enter the bottom water bath of the reaction container; meanwhile, part of water in the water bath is filtered and then circulated to the water delivery device through the water inlet pipe so as to be recycled.