CN114772549B

CN114772549B - Hydrogen preparation system

Info

Publication number: CN114772549B
Application number: CN202210319696.9A
Authority: CN
Inventors: 冀中华; 陆宪文; 彭伟
Original assignee: Beijing Dongfang Huaqing Technology Co ltd
Current assignee: Beijing Dongfang Huaqing Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2024-01-30
Anticipated expiration: 2042-03-29
Also published as: CN114772549A

Abstract

The embodiment of the invention provides a hydrogen preparation system, which comprises: a housing; the burner is arranged in the shell and is used for burning the obtained object to be burned to generate heat energy; the catalyst is arranged in the shell and is communicated with the burner so as to obtain heat energy, and the heat energy is utilized to complete the catalytic reaction of hydrogen production fuel to generate gas to be purified; the sleeve assembly is provided with a plurality of inner sleeve pipe groups, one end of the inner sleeve pipe group is positioned outside the shell, the other end of the inner sleeve pipe group extends into the shell and penetrates through the combustor and the catalyst and is at least communicated with the catalyst, and the inner sleeve pipe group is at least used for conveying hydrogen production fuel to the catalyst and outputting gas to be purified. The hydrogen preparation system supports equipment miniaturization, and can ensure hydrogen preparation efficiency and yield.

Description

Hydrogen preparation system

Technical Field

The embodiment of the invention relates to the field of hydrogen preparation, in particular to a hydrogen preparation system.

Background

Hydrogen gas of the formula H ₂ The molecular weight is 2.01588, and the gas is extremely easy to burn at normal temperature and normal pressure, is colorless, transparent, odorless and tasteless and is difficult to dissolve in water. Hydrogen is the smallest known gas in the world with a density of only 1/14 of air, i.e. 0.089g/L at 1 atm and 0 ℃. So the hydrogen can be used as filling gas of airship and hydrogen balloon, and is used for military use. However, the existing hydrogen preparation system has a large overall structure, cannot be carried, and the hydrogen preparation effect is reduced linearly if the volume is reduced. Therefore, the arrangement structure of the current hydrogen preparation system cannot effectively ensure the preparation efficiency and yield of hydrogen while supporting miniaturization.

Disclosure of Invention

The invention provides a hydrogen preparation system which supports miniaturization of equipment and can ensure hydrogen preparation efficiency and yield.

In order to solve the above technical problems, an embodiment of the present invention provides a hydrogen production system, including:

a housing;

the burner is arranged in the shell and is used for burning the obtained object to be burned to generate heat energy;

the catalyst is arranged in the shell and is communicated with the burner so as to obtain heat energy, and the heat energy is utilized to complete the catalytic reaction of hydrogen production fuel to generate gas to be purified;

the sleeve assembly is provided with a plurality of inner sleeve pipe groups, one end of the inner sleeve pipe group is positioned outside the shell, the other end of the inner sleeve pipe group extends into the shell and penetrates through the combustor and the catalyst and is at least communicated with the catalyst, and the inner sleeve pipe group is at least used for conveying hydrogen production fuel to the catalyst and outputting gas to be purified.

As an alternative embodiment, further comprising:

the purifier is arranged in the shell and communicated with the catalyst and the inner sleeve pipe set, and is used for obtaining the gas to be purified, purifying and generating hydrogen and waste gas, and outputting the hydrogen and the waste gas through the inner sleeve pipe set;

the sleeve assembly further comprises an outer sleeve which is sleeved outside the inner tube groups simultaneously, the outer sleeve is communicated with the burner, and one end of the inner sleeve extending out of the shell is communicated with the outer sleeve so as to convey the waste gas to the burner through the outer sleeve.

As an alternative embodiment, the burner is provided with a first chamber and a second chamber, the first chamber is used for burning the obtained objects to be burned to generate heat energy, the outer sleeve is communicated with the first chamber and is used for conveying waste gas to the first chamber, high-temperature flue gas is formed by burning, and the flue gas is discharged through the second chamber of the burner after passing through at least the catalyst and the purifier to provide heat energy for the catalyst and the purifier;

the first cavity is annular and sleeved on the sleeve component;

the second cavity is annular and sleeved outside the first cavity, a first partition plate is arranged in the second cavity along the direction perpendicular to the axial direction of the sleeve assembly, a second partition plate is arranged in the second cavity along the direction parallel to the axial direction of the sleeve assembly, the first partition plate and the second partition plate are mutually matched to divide the second cavity into two parts, the first part is communicated with the first cavity and used for introducing received external air flow into the first cavity to support combustion, and the second part is communicated with the catalyst and used for receiving and guiding out smoke.

As an alternative embodiment, the burner comprises an inner tube, a middle tube and an outer tube which are sleeved in turn from inside to outside, wherein the end parts of the inner tube and the middle tube are provided with baffle plates sleeved outside the outer sleeve, the inner tube and the middle tube are mutually communicated to form the first chamber, and the space surrounded by part of the outer tube forms the second chamber;

The inner tube is provided with a circle of through holes, a circle of cyclone baffle plates surrounding the outer sleeve are arranged on a first baffle plate positioned at one side of the inner tube away from the catalyst, one end of the middle tube, which is towards the cyclone baffle plates, extends out of the inner tube and is connected with an annular sealing plate arranged on the outer sleeve, so that an air inlet area communicated with the first cavity is formed between at least part of the first baffle plates positioned in the first part and the annular sealing plate, and at least one part of the first baffle plates positioned in the second part and the annular sealing plate are in a closed state;

when the external air flow enters the air inlet area from the first part, the air flow is blown into the inner pipe in a cyclone shape under the action of the cyclone baffle plate, and is scattered into the middle pipe in a rotary shape based on the through hole of the inner pipe so as to fully burn with the objects to be burnt in the first chamber, and simultaneously, the sleeve pipe assembly is heated.

As an alternative embodiment, an annular catalyst top plate is arranged between the burner and the catalyst, an annular catalyst bottom plate is arranged between the catalyst and the purifier, a catalyst partition plate is arranged between an outer sleeve pipe penetrating through the catalyst and an inner sleeve pipe group so as to enclose an evaporation chamber between the outer sleeve pipe and the inner sleeve pipe group between the catalyst partition plate and the catalyst bottom plate, and the hydrogen production fuel flows out from the inner sleeve pipe group and enters the evaporation chamber for gasification;

The catalyst top plate is provided with a plurality of first air holes and first channels, the catalyst bottom plate is provided with a plurality of second air holes and second channels, and part or all of the first air holes, the second air holes, the first channels and the second channels are used for transmitting the high-temperature flue gas, or the gasified hydrogen production fuel and the gas to be purified formed after the hydrogen production fuel is catalyzed.

As an alternative embodiment, the catalyst comprises a plurality of sleeves which are sleeved at intervals in sequence and are open at two ends, the top plate of the catalyst and the bottom plate of the catalyst are respectively covered at two ends of the sleeves, the outer sleeve and the sleeves alternately form a flue gas channel and a catalyst channel from inside to outside in sequence, each catalyst channel is provided with at least one first air hole, one second air hole, one first channel and one second channel which are correspondingly communicated, each flue gas channel is provided with at least one first air hole and one second air hole which are correspondingly communicated, and the first chamber and the second chamber are respectively communicated with one flue gas channel through a corresponding first air hole or catalyst partition plate.

As an alternative embodiment, the gasified hydrogen production fuel is conveyed to the outermost catalyst channels to be catalyzed through the second air holes and the second channels, then enters the adjacent other catalyst channels to be catalyzed through the corresponding first air holes and the first channels, then enters the next adjacent catalyst channels to be catalyzed through the corresponding second air holes and the second channels until the gas to be purified is formed by traversing all the catalyst channels, and enters the purifier through the gas channel to be purified which is communicated with the bottom plate of the catalyst;

The high-temperature flue gas generated in the first chamber respectively enters the corresponding flue gas channel through the first air hole corresponding to the first chamber and the catalyst partition plate, enters the purifier through the second air hole corresponding to the flue gas channel, sequentially passes through the purifier, passes through the other second air hole, the flue gas channel and the first air hole which are communicated with the purifier, and then enters the second chamber to be discharged.

As an alternative embodiment, the inner sleeve pipe group sequentially comprises a first sleeve pipe, a second sleeve pipe and a third sleeve pipe from inside to outside, wherein the first sleeve pipe and the second sleeve pipe are both communicated with the purifier, the first sleeve pipe is used for receiving hydrogen, the second sleeve pipe is used for receiving waste gas, the third sleeve pipe is communicated with the catalyst and used for conveying the received hydrogen production fuel into the catalyst, and the outer sleeve pipe is communicated with the first chamber and the second sleeve pipe and used for conveying the waste gas into the first chamber for combustion to generate high-temperature flue gas.

As an alternative embodiment, the purifier includes the purifier body, surrounds the purifier body and first casing and the second casing that mutually overlaps and establish, first casing one end is uncovered, the second casing both ends are all uncovered, the second casing is located in the first casing, and with have the confession flue gas by the clearance of second casing flow direction first casing between the second casing, sleeve pipe subassembly and wait to purify the gas passage all with the purifier body intercommunication, catalyst converter bottom plate closing cap the open end of first casing and second casing syntropy, be equipped with in the second casing with clearance with flue gas channel intercommunication's exhaust duct, by the flue gas that the catalyst converter was carried to in the purifier passes through clearance, exhaust duct, flue gas channel and with the first through-hole that the flue gas channel corresponds gets into the second cavity.

As an alternative embodiment, the hydrogen preparation system further comprises a regenerator, the regenerator is located at one end of the burner far away from the catalyst, the sleeve component penetrates through the regenerator, the regenerator comprises a low temperature area and a high temperature area, the low temperature area is communicated with the first chamber of the burner so as to convey external airflow for the first chamber, the high temperature area is communicated with the second chamber of the burner so as to be used for receiving and discharging the flue gas, and when the flue gas and the external airflow pass through the high temperature area and the low temperature area respectively, heat exchange is achieved.

Based on the disclosure of the above embodiment, it can be known that the beneficial effects of the embodiment of the invention include compact overall structure of the hydrogen preparation system and support for miniaturized design. And through with combustor and catalyst converter intercommunication, can make the catalyst converter effectively absorb the catalysis of heat energy realization hydrogen production fuel, form the gas (i.e. hydrogen-rich) of waiting of treating that is rich in a large amount of hydrogen, assist has promoted the effect of catalytic hydrogen production, simultaneously this application sets up the sleeve pipe subassembly to the form that contains a plurality of endotheca nest of tubes that can carry hydrogen-rich, so can improve the gas flow, the preparation efficiency of hydrogen-rich is further promoted simultaneously, supplementary promotion hydrogen preparation output, especially when hydrogen-rich demand is great, hydrogen preparation system in this application just can satisfy the user and to hydrogen-rich, hydrogen's output requirement.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

fig. 1 is a structural sectional view of a hydrogen production system in an embodiment of the present invention.

Fig. 2 is another structural sectional view of the hydrogen production system in the embodiment of the invention.

FIG. 3 is a schematic diagram showing the structure of a hydrogen production system according to another embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of the structure of the hydrogen production system in the embodiment of the invention.

Fig. 5 is another structural sectional view of the hydrogen production system in the embodiment of the invention.

Fig. 6 is a schematic view of a part of the structure of a burner in an embodiment of the present invention.

Fig. 7 is a partial structural sectional view of a burner in an embodiment of the present invention.

Reference numerals:

1-a burner; 2-a catalyst; 3-a purifier; 4-a sleeve assembly; 5-a first chamber; 6-a second chamber; 7-an inner tube; 8-middle tube; 9-an outer tube; 10-through holes; 11-a first baffle; 12-a cyclone baffle; 13-an annular sealing plate; 14-a second baffle; 15-a third baffle; 16-a housing; 17-a first part; 18-a second part; 19-an air inlet area; 20-catalyst top plate; 21-a catalyst floor; 22-a first air hole; 23-a second air hole; 24-a first channel; 25-a second channel; 26-inner sleeve group; 27-a discharge hole; 28-a fuel conduit; 29-a first separator; 30-a second separator; 31-a first sleeve; 32-a second sleeve; 33-a third sleeve; 34-outer sleeve; 35-an ignition part; 36-a first housing; 37-a second housing; 38-a purifier body; 39-a gas passage to be purified; 40-a regenerator; 41-a heat return plate; 42-low temperature zone; 43-high temperature zone; 45-sleeve; 46-a smoke exhaust duct; 47-catalyst separator; 48-valve block

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings, but not limiting the invention.

It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the following description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of this disclosure will occur to persons of ordinary skill in the art.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It is also to be understood that, although the invention has been described with reference to a few specific examples, those skilled in the art will be able to certainly realize many other equivalent forms of the invention, they have the features as claimed and are therefore all within the scope of protection defined thereby.

The above and other aspects, features and advantages of the present disclosure will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure, which may be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the disclosure in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely serve as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.

The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a hydrogen production system, including:

a housing 16;

a burner 1 provided in the housing 16 for burning the obtained object to be burned to generate heat energy;

a catalyst 2 disposed in the housing 16 and communicating with the burner 1 for obtaining heat energy and completing a catalytic reaction of the hydrogen production fuel by using the heat energy to generate a gas to be purified;

the sleeve assembly 4 has one end located in the housing 16 and the other end extending into the housing 16 and penetrating the burner 1 and the catalyst 2 while being in communication with at least the catalyst 2, and the sleeve assembly 4 includes a plurality of inner sleeve groups 26, the inner sleeve groups 26 being at least used for delivering hydrogen production fuel to the catalyst 2 and outputting gas to be purified.

The hydrogen preparation system in this embodiment can at least prepare the gas to be purified which is rich in a large amount of hydrogen, namely, the hydrogen-rich gas, and the hydrogen-rich gas can be further purified to form pure hydrogen, and can also be directly used as industrial gas. For example, purifier 3 may be externally mounted to housing 16 and in communication with sleeve assembly 4 to obtain and purify the gas to be purified. Or purifier 3 may be disposed within housing 16, i.e., the hydrogen production system includes purifier 3, etc.

Based on the disclosure of the above embodiment, it can be known that the beneficial effects of the embodiment of the invention include compact overall structure of the hydrogen preparation system and support for miniaturized design. And through with combustor 1 and 2 intercommunication, can make the catalysis of catalyst 2 can effectively absorb the catalysis of heat energy realization hydrogen production fuel, form the gas of treating purification (i.e. hydrogen-rich) that is rich in a large amount of hydrogen, assist has promoted the effect of catalytic hydrogen production, simultaneously this embodiment sets up sleeve assembly 4 to the form that contains a plurality of endotheca nest 26 that can carry hydrogen-rich, so can improve the gas flow, further promote hydrogen-rich's preparation efficiency simultaneously, assist promotion hydrogen preparation output, especially when hydrogen-rich demand is great, hydrogen preparation system in this application just can satisfy the user to hydrogen-rich, hydrogen's output requirement.

Further, the hydrogen production system in the present embodiment includes a purifier 3 provided in the housing 16 and communicating with the catalyst 2 and the inner tube group 26 for obtaining a gas to be purified, purifying the generated hydrogen and exhaust gas, and then outputting from the inner tube group 26. In addition, as shown in fig. 1, the sleeve assembly 4 in the present embodiment further includes an outer sleeve 34 that is simultaneously sleeved outside all of the inner sleeve groups 26, that is, all of the inner sleeve groups 26 are located inside the outer sleeve 34. The outer sleeve 34 is communicated with the burner, and one end of a part of the inner sleeve pipe group 26 extending out of the housing 16 is communicated with the outer sleeve 34, that is, a part for transmitting exhaust gas is communicated with the outer sleeve 34, specifically, communication can be realized through other components including a pipeline and the like, so that the exhaust gas transmitted in the inner sleeve pipe group 26 is conveyed into the outer sleeve 34, and finally, the outer sleeve 34 is conveyed into the burner 1 for combustion.

Further, the burner 1 in the present embodiment has a first chamber 5 and a second chamber 6, the first chamber 5 is used for burning the obtained objects to be burned to generate heat energy, the outer sleeve 34 is communicated with the first chamber 5 for delivering the exhaust gas to the first chamber 5 for burning to form high-temperature flue gas, and the flue gas at least flows through the catalyst 2 and the purifier 3 to provide heat energy for the flue gas, and then is discharged through the second chamber 6 of the burner 1.

For example, the hydrogen production system in this embodiment includes a housing 16 (the housing 16 may have a long cylindrical shape, and the specific shape is not unique, but may also have other shapes), and a combustor 1, a catalyst 2, and a purifier 3 disposed in the housing 16 and adjacent to each other in this order, where the combustor 1 is used for combusting the obtained object to be combusted, for example, a fuel, or an exhaust gas to be treated, so as to generate heat energy, and the heat energy may provide a temperature environment meeting the hydrogen production requirement for the hydrogen production system. The burner 1 in this embodiment has two mutually independent, non-communicating first and second chambers 5, 6, wherein the first chamber 5 is for receiving and burning a substance to be burned to generate heat energy. The second chamber 6 is for delivering exhaust gases to the outside. Further, the catalyst 2 communicates with the burner 1 to obtain thermal energy, so that the catalyst 2 can complete the catalytic reaction of the hydrogen production fuel based on the thermal energy to generate gas to be purified. The hydrogen production fuel is not particularly limited, and may be methanol, ammonia, or other substances capable of being catalyzed to generate hydrogen. The purifier 3 communicates with the catalyst 2 to obtain a gas to be purified, purify hydrogen, and filter exhaust gas. The hydrogen production system in this embodiment further includes a sleeve assembly 4, where the sleeve assembly 4 penetrates through the burner 1 and the catalyst 2 and is in communication with the burner 1, the catalyst 2 and the purifier 3, and the sleeve assembly 4 is formed by an outer sleeve 34 and a plurality of inner sleeve groups 26 located in the outer sleeve 34, and the number of inner sleeve groups 26 and the specific number of sleeves contained in the inner sleeve groups 26 are all variable, and can be correspondingly increased or decreased according to the actually required hydrogen-rich gas or hydrogen production. The sleeve assembly 4 in this embodiment is used to deliver hydrogen production fuel to the catalyst 2 and to remove hydrogen from the purifier 3 after it has been obtained, such as by delivering the hydrogen to a hydrogen collection device or directly to the product in which the hydrogen is used, as the case may be. The sleeve assembly 4 can obtain waste gas from the purifier 3 at the same time, and convey the waste gas into the first chamber 5, the first chamber 5 burns to generate high-temperature flue gas, the high-temperature flue gas carries heat energy to flow to the catalyst 2 and the purifier 3 and then returns to the burner 1, and is discharged from the second chamber 6 of the burner 1, namely, the high-temperature flue gas transfers heat energy to the catalyst 2 and the purifier 3 and then is cooled, and the cooled flue gas returns to the second chamber 6 of the burner 1 and is discharged through the second chamber 6.

Further, the first chamber 5 in this embodiment is annular and sleeved on the sleeve component 4, and the second chamber 6 is annular and sleeved outside the first chamber 5.

Specifically, as shown in fig. 6 and 7, the first chamber 5 of the burner 1 in this embodiment is surrounded by an inner tube 7 and a middle tube 8 that are sleeved with each other, the sleeve assembly 4 is inserted into the inner tube 7, and spaces are provided between the inner tube 7 and the middle tube 8, and between the inner tube 7 and the sleeve assembly 4. The inner tube 7 is provided with one or more circles of through holes 10, and the waste gas waits for the combustion substances to enter the inner tube 7 through a discharge hole on the sleeve assembly 4 communicated with the inner tube 7 and enter the middle tube 8 through the through holes 10 on the inner tube 7 so as to realize full combustion. The through hole 10 is not particularly limited in its external structure, and may be a circular hole, a bar-shaped hole, a slotted hole, or the like. The middle tube 8 is provided with ignition portions 35, 48 extending outside the burner 1, such as in particular an ignition sleeve, into which the user can introduce a source of fire into the middle tube 8 by placing an ignition core therein, thereby igniting the objects to be burnt in the middle tube 8, the inner tube 7. In addition, optionally, the ignition parts 35, 48 in the present embodiment are simultaneously perforated with a fuel pipe 28 for feeding fuel into the middle pipe 8, such as feeding pure hydrogen fuel (liquid state) into the middle pipe 8, for preheating the system at the initial operation of the system, that is, the burner 1 generates high temperature flue gas, such as pure methanol, liquid ammonia, etc., by burning the pure hydrogen fuel, and transfers heat energy by the flow of the flue gas, preheating the entire system. Moreover, by providing the fuel pipe 28, the burner 1 of the present embodiment can receive both liquid fuel and other fuel (exhaust gas).

Further, the length of the middle tube 8 in this embodiment is longer than that of the inner tube 7, and a first baffle 11 and a second baffle 14 are disposed in the middle tube 8 at intervals, and the two baffles are both annular. The inner tube 7 is located between the first baffle 11 and the second baffle 14. Wherein the inner diameter of the first baffle 11 is at least the same as the inner diameter of the inner tube 7, a part of the middle tube 8 extends out of the first baffle 11 towards one end of the first baffle 11 to form a first extension, for example, a half of the tube wall of the middle tube 8 extends outwards to form a first extension, or more/less of the tube wall of the middle tube 8 extends outwards to form a first extension, which is more specific. The first extension part is connected with an annular sealing plate 13 which is arranged outside the sleeve in a sealing way, so that an air inlet area 19 which is respectively communicated with the outside and the inner pipe 7 is formed among the first extension part, the first baffle plate 11 and the annular sealing plate 13, and outside air flows into the inner pipe 7 through the air inlet area 19.

Optionally, a circle of cyclone baffle plates 12 surrounding the sleeve are arranged on the first baffle plates 11 in the air inlet area 19, when external air flows enter the air inlet area 19, the external air flows can enter the inner tube 7 after forming cyclone based on the cyclone baffle plates 12, and then uniformly and rotatably spread into the middle tube 8 through the through holes 10 on the inner tube 7, so as to assist the full combustion of the objects to be combusted in the middle tube 8 and the inner tube 7.

Optionally, in this embodiment, the inner tube 7 is abutted against the first baffle 11, one side of the inner tube 7 facing the second baffle 14 is provided with an annular third baffle 15, and the third baffle 15 is sleeved on the sleeve and abutted against the sleeve correspondingly, so that two ends of the inner tube 7 are closed or approximately closed, and external air flow can only be uniformly scattered into the middle tube 8 through the through holes 10 after entering the inner tube 7, so that combustion-supporting gas is distributed in the middle tube 8, and sufficient combustion of objects to be combusted is further ensured.

In addition, through making the air current take on the rotation form, can make it wrap up in and hold up heat energy and rotate round sleeve pipe assembly 4, and then heat sleeve pipe assembly 4, make and pass through sleeve pipe assembly 4 and transmit heat energy, the hydrogen production fuel in the sleeve pipe assembly 4 of heating simultaneously makes it gasify, and the hydrogen production fuel after the gasification can be catalyzed in catalyst converter 2 better, promotes to produce and wait to purify the gas.

Further, as further shown with reference to fig. 6 and 7, the middle tube 8 in the present embodiment is externally sleeved with an outer tube 9, and the outer tube 9 is not smaller in size in the axial direction than the middle tube 8. A first partition 29 is arranged axially between the outer tube 9 and a part of the middle tube 8, and one end of the first partition 29 is at least flush with the end of the middle tube 8 facing away from the catalyst 2, and the other end is at most flush with the end of the middle tube 8 facing towards the catalyst 2, e.g. the other end of the first partition 29 is located in the middle of the terminal, in particular variably. The first partition 29 divides the annular area between the outer tube 9 and the middle tube 8 into a first portion 17 and a second portion 18 which are not in communication with each other, a second partition 30 which is correspondingly connected with the first partition 29 is arranged in the first portion 17 in the radial direction, the second portion 18 is communicated with the catalyst 2 for conveying flue gas, and the second chamber 6 at least comprises the second portion 18. Specifically, as shown in fig. 6, in this embodiment, the second partition plate 30 is disposed in the middle section of the annular area surrounded by the middle tube 8 and the outer tube 9, the plane of the second partition plate 30 is coplanar with the plane of the end of the first partition plate 29 facing the flue gas channel, and by disposing the first partition plate 29 and the second partition plate 30, the first portion 17 can be further divided into two areas, one area is communicated with the second portion 18, the area and the second portion 18 together form the second chamber 6, and one end of the catalyst 2 is communicated with the area, or the second portion 18, so that the flue gas after heat exchange can be successfully led out. The other area of the first portion 17 is communicated with the external and air inlet area 19 for introducing external air flow, and through the arrangement of the two baffles, the external air flow and the flue gas are isolated and not interfered with each other, and the flue gas is not sucked into the burner 1 for the second time to interfere with combustion, so that the combustion effect of the burner 1 is remarkably improved.

Further, the middle pipe 8 in the present embodiment protrudes toward one side of the second baffle 14 to form a circle of second extension portion against which one end of the catalyst 2 abuts. In order to increase the tightness, a ring of compression ring is further disposed at the second extension portion in this embodiment.

With continued reference to fig. 1, 2 and 4, a catalyst top plate 20 is disposed between the burner 1 and the catalyst 2 in this embodiment, and a catalyst bottom plate 21 (as shown in fig. 4 and 5) is disposed between the catalyst 2 and the purifier 3 or between the catalyst 2 and the purifier 2-disposed region in the housing 16, and the catalyst top plate 20 and the catalyst bottom plate 21 are both annular and are both sleeved on the outer sleeve 34 and correspondingly abutted against the outer sleeve 34. The top plate 20 and the outer sleeve 34 may have an annular gap therebetween for allowing the flue gas to directly enter the catalyst 2, or may also have a hollow hole directly formed on the top plate 20 for allowing the flue gas to pass therethrough, in a specific manner. One end of the middle tube 8 and one end of the outer tube 9 of the burner 1 are abutted against the top plate 20 of the catalyst, and the outer tube 9 can fix the rest of the top plates 20 of the catalyst through flanges. A catalyst spacer is disposed between the outer sleeve 34 and the inner sleeve 26 passing through the catalyst 2, that is, between the outer sleeve 34 and the inner sleeve 26 corresponding to the catalyst 2, and may extend into a sleeve 45 (described below) adjacent to the outer sleeve 34 in the catalyst, for example, when there is an annular gap between the top plate 20 and the outer sleeve 34, the catalyst spacer may be optionally extended to the sleeve 45, and a cavity may be formed in the catalyst spacer for passing flue gas, but the specific manner is not exclusive. By providing the catalyst partition plate, the partition plate and the catalyst bottom plate 21 can be matched to separate the annular chamber between the outer sleeve 34 and the inner sleeve pipe set 26 into an evaporation chamber, and because the outer sleeve 34 penetrates through the first chamber 5 of the combustor 1, flue gas formed by combustion in the first chamber 5 can directly enter between the outer sleeve 34 and an adjacent sleeve 45 (described below) in the catalyst 2, the outer sleeve 34 can absorb a large amount of heat energy, and the temperature is extremely high, so that hydrogen production fuel can flow out of the inner sleeve pipe set 26 into the evaporation chamber and then be directly gasified to form fuel gas.

Further, the top plate 20 of the catalyst in this embodiment is provided with a plurality of first air holes 22 and first channels 24, the first channels 24 are plural, and the plurality of first channels 24 are arranged in a scattering shape around the center of the circle where the sleeve assembly 4 is located, and the specific number of the first channels is variable. The catalyst base plate 21 is provided with a plurality of second air holes 23 and second channels 25, and the second channels 25 are arranged in a plurality of ways similar to the first channels 24 and are arranged in a scattering shape. The first air hole 22, the second air hole 23, the first channel 24 and the second channel 25 are used for transmitting high-temperature flue gas or gasified hydrogen production fuel and gas to be purified formed by catalyzing the hydrogen production fuel.

Further, as further shown in fig. 1 to 5, the catalyst 2 includes a plurality of sleeves 45 sleeved at intervals in sequence and having two open ends, and the catalyst 2 in this embodiment includes eight layers of sleeves 45, which may include more sleeves 45, or reduce the arrangement of the sleeves 45, specifically may be changed according to the actual hydrogen and the hydrogen-rich yield requirement. The catalyst top plate 20 and the catalyst bottom plate 21 are capped at both ends of the plurality of sleeves 45, respectively, or as described above, there is an annular gap between the catalyst top plate 20 and the outer sleeve 34, which may be formed by uncapping the ends of the catalyst top plate 20 and the innermost sleeve 45. A plurality of annular chambers are enclosed between the sleeves 45 and the sleeve assembly 4, and the annular chambers sequentially form a flue gas channel and a catalyst channel from inside to outside, for example, a first flue gas channel is formed between the first sleeve of the innermost layer and the sleeve assembly 4, a second sleeve is positioned outside the first sleeve and forms a first catalyst channel with the first sleeve, a third sleeve is positioned outside the second sleeve and forms a second flue gas channel with the second sleeve, a fourth sleeve is positioned outside the third sleeve and forms a second catalyst channel with the third sleeve, and the like are sequentially pushed in sequence, and concretely, referring to fig. 3 and 5, the channel where the dotted arrow is located is the catalyst channel, the channel where the solid arrow is located is the flue gas channel, the dotted arrow indicates the trend of fuel gas and gas to be purified in the catalyst 2, and the solid arrow indicates the trend of flue gas in the catalyst 2. Wherein, each catalyst channel and flue gas channel has at least one first air hole 22, second air hole 23, first channel 24, second channel 25 corresponding to the first air hole, and first chamber 5 and second chamber 6 are all communicated with a flue gas channel through corresponding first air hole 22. Since the first air hole 22, the second air hole 23, the first channel 24 and the second channel 25 are all disposed around the sleeve assembly 4 in multiple circles, and each of the flue gas channel and the catalyst channel is annular, in practice, each of the catalyst channel and the flue gas channel in this embodiment may have multiple first air holes 22, second air holes 23, first channels 24 and second channels 25 correspondingly communicated with each other to respectively satisfy the transmission of the flue gas and the gas to be purified (the number of specific air holes and channels may be determined according to the actual gas flow). Moreover, two ends of the first channel 24 are respectively communicated with a first air hole 22, and the first channels 24 connected with the two first air holes 22 are different, and similarly, two ends of the second channel 25 are respectively communicated with a second air hole 23, and the second channels 25 connected with the two second air holes 23 are different, so that the gas to be purified and the flue gas can be respectively rolled through the multi-layer catalyst channels, the flue gas channels, the maximization and uniform transfer of heat energy are realized, and the auxiliary catalyst fully catalyzes the fuel gas to form the gas to be purified.

The catalyst is arranged in the catalyst channel in the embodiment, and a plurality of flow channels are formed in the flue gas channel, and can enable the flue gas to be fully contacted with the channel wall, so that uniform heat transfer is ensured. In practical application, the forming of a plurality of flow channels can be realized by arranging the pall rings, or the forming can also be realized by arranging a plurality of guide plates and the like, and the specific mode is not unique.

Alternatively, in order to avoid insufficient combustion of the flue gas, having harmful substances, at least the innermost flue gas channel communicating with the first chamber 5 in this embodiment is provided with a filtering substance for filtering the flue gas, such as a three-way catalyst, towards one end of the first chamber 5. The flue gas enters the three-way catalyst through the corresponding first gas holes 22 for filtration and then enters the corresponding flue gas channels. In order to avoid the shifting of the three-way catalyst type material, in this embodiment, the catalyst partition plate 47 is extended into the adjacent sleeve 45 to limit the filtering material, and the innermost sleeve 45 is not closed by the top plate 20, so that the flue gas can pass through the filtering material first, and then enters the flue gas channel from the hollow hole formed on the partition plate.

Continuing to refer to fig. 1, 3 and 5, the hydrogen-producing fuel transported within the sleeve assembly 4 is heated by the burner 1 to raise the temperature, completing the gasification transition. The gasified hydrogen production fuel is conveyed to the first catalyst channel at the outermost side for catalysis through the sleeve component 4, then enters the communicated second channel 25 through the second air holes 23 corresponding to the first catalyst channel, is conveyed to the adjacent second catalyst channel for catalysis through the second channel 25, then enters the corresponding first channel 24 through the first air holes 22 communicated with the second catalyst channel, is conveyed to the third catalyst channel for catalysis again through the first channel 24, and the gas to be purified is formed after the fuel gas roundabout traverses all the catalyst channels in turn. The gas to be purified thus formed enters the purifier 3 through the gas passage 39 to be purified communicating with the catalyst base plate 21. For example, the gas passage 39 to be purified is located in the purifier 3 and communicates with the purifier 3 and the catalyst passage through which the fuel gas finally flows, for example, through a third gas hole in the catalyst bottom plate 21 communicating with the catalyst passage through which the fuel gas finally flows, thereby successfully introducing the gas to be purified into the purifier 3. In use, a filter ring may be disposed within the catalyst passage such that the gas to be purified is filtered through the filter ring and then enters the gas passage 39 to be purified.

The above is the case where the purifier 3 is located in the housing 16, and when the purifier 3 is located outside the housing 16, the gas passage to be purified introduces the received gas to be purified into the corresponding inner tube in the inner tube group 26 to convey the gas to be purified to the purifier 3 outside the housing 16 communicating with the inner tube group, thereby treating the gas to be purified.

Further, for the treatment of the flue gas, in this embodiment, the high-temperature flue gas generated in the first chamber 5 is conveyed to the flue gas channel corresponding to the first chamber 5 and located at the innermost side, and enters the next flue gas channel through the second air holes 23 and the second channels 25 corresponding to the flue gas channel until all the flue gas channels are traversed, and then enters the purifier 3 in the shell 16, and then sequentially passes through the second air holes 23, the flue gas channels and the first air holes 22 corresponding to the purifier 3 through the purifier 3 and then enters the second chamber 6 to be discharged.

Further, as further shown with continued reference to fig. 1 to 5, the inner tube group 26 in this embodiment includes a first tube 31, a second tube 32, and a third tube 33 in this order from the inside to the outside. One end of the three sleeves in the same direction extends out of the shell 16, wherein the other end of the first sleeve 31 and the second sleeve 32 of each inner sleeve 26 are connected with the purifier 3, the first sleeve 31 is used for receiving hydrogen, and the second sleeve 32 is used for receiving waste gas. When the purifier 3 is located outside the housing 16 and is an external purifier, the second sleeve 32 may not be provided, and the gas to be purified is directly conveyed to the external purifier 3 through the first sleeve 31. The other end of the third sleeve 33 is connected to the catalyst 2 (i.e., does not extend into the purifier 3) for delivering the received hydrogen-producing fuel to the catalyst 2. The third sleeve 33 in this embodiment is provided with a row of discharge holes 27 for hydrogen fuel, and gaseous hydrogen fuel is sprayed from the discharge holes 27 into the evaporation chamber. The other end of the outer sleeve 34 penetrates to the catalyst bottom plate 21, and the part of the outer sleeve 34 corresponding to the first chamber 5 is provided with an opening so as to be communicated with the first chamber 5 through the opening, and the outer sleeve 34 is communicated with one end of the second sleeve 32 extending out of the shell 16 so as to be used for receiving and conveying the waste gas into the first chamber 5 for burning to generate high-temperature flue gas. In practice, the outer sleeve 34 and the end of the second sleeve 32 extending out of the housing 16 may be connected by a valve block 48, such as a pressure release valve, and the exhaust gas delivered from the second sleeve 32 is released through the valve block 48 and then enters the outer sleeve 34 to be delivered into the first chamber 5.

Continuing with fig. 1 and 3, the purifier 3 in this embodiment includes a purifier body 38, a first housing 36 and a second housing 37 surrounding the purifier 3 body and sleeved with each other, where, as shown in fig. 4 and 5, the above-mentioned externally-connected purifier 3, that is, the purifier 3 is disposed outside the housing 16 mainly means that the purifier body 38 is external, and the remaining structures are all present for guiding the flue gas (see in detail below). Further, the first housing 36 is open at one end, the second housing 37 is open at both ends, the second housing 37 is located in the first housing 36, and a gap is formed between the second housing 37 and the second housing 37 for flue gas flowing from the second housing 37 to the first housing 36. As shown in fig. 3 and 5, the flue gas flows out of the second air holes 23 of the catalyst substrate 21 first into the second housing 37, and then flows into the first housing 36 from the gap between the second housing 37 and the bottom of the first housing 36, that is, into the gap between the side walls of the two housings 16. The process can enable the flue gas to flow around the purifier 3 body and provide sufficient heat for the purifier 3 body. The gas passage 39 to be purified is communicated with the purifier 3 body, and the first sleeve 31 and the second sleeve 32 in the inner sleeve group 26 are respectively communicated with the hydrogen pipeline and the exhaust pipeline of the purifier 3 body.

Further, the catalyst substrate 21 in the present embodiment covers the open ends of the first casing 36 and the second casing 37 toward the side of the catalyst 2, so that the purifier 3 is approximately sealed as a whole. As shown in fig. 1 and 2, the second housing 37 in this embodiment is provided with a smoke exhaust duct 46 communicating with the above-mentioned gap and at least part of the smoke channel, and the smoke exhaust duct 46 may be disposed on one side of the catalyst base plate 21 on the catalyst 2, for example, a cover plate with a groove is disposed on the catalyst base plate 21 to cooperate with the catalyst base plate 21 to enclose the smoke exhaust duct 46, and the smoke exhaust duct 46 communicates with the gap between the side walls of the two housings, and communicates with the smoke channel for guiding out smoke, specifically, communicates through the second air holes 23 corresponding to the smoke channel, and the second air holes 23 are enclosed in the smoke exhaust duct 46. The flue gas fed from the catalyst 2 to the purifier 3 passes through the above-mentioned gap, the flue gas duct 46, the second air hole 23, the flue gas passage, and the first through hole 10 corresponding to the flue gas passage into the second chamber 6.

In practical application, the number and shape of the smoke exhaust pipes 46 are not unique, one annular smoke exhaust pipe 46 can be provided, a plurality of concentric annular smoke exhaust pipes 46 can be provided according to the number, position and the like of the second air holes 23 which are required to be communicated, two or more arc smoke exhaust pipes 46 can be provided according to the number and position of the second air holes 23 which are required to be communicated, and the arrangement mode is not unique, so long as the smoke can be conveyed to the second chamber 6 through the corresponding smoke channel.

With continued reference to fig. 1 to 5, in order to further utilize the heat energy of the flue gas and prevent the flue gas from overheating, and the flue gas is discharged into the atmosphere to be dangerous, the hydrogen preparation system in this embodiment is further provided with a regenerator 40. The regenerator 40 is located on the side of the burner 1 away from the catalyst 2, i.e. the burner 1 is located between the regenerator 40 and the catalyst 2, and one end of the sleeve assembly 4 extends out of the system after passing through the regenerator 40. The regenerator 40 in this embodiment is ring-shaped, and includes a low temperature region 42 and a high temperature region 43, where the low temperature region 42 and the high temperature region 43 may be disposed left and right, up and down, and the like, and is particularly variable. The low temperature zone 42 of the regenerator 40 communicates with the first chamber 5 of the burner 1 to deliver an external air flow to the first chamber 5, and the high temperature zone 43 of the regenerator 40 communicates with the second chamber 6 of the burner 1 for receiving and discharging the flue gases while allowing the flue gases to exchange heat with the external air flow. For example, the regenerator 40 in the present embodiment includes a plurality of annular heat-returning plates 41 disposed at intervals along the axial direction of the sleeve assembly 4, each of the heat-returning plates 41 being divided into two regions each for disposing a plurality of heat-exchanging holes for allowing the gas to flow therethrough to perform heat exchange, the two regions forming a low temperature region 42 and a high temperature region 43, respectively (the high temperature region 43 and the low temperature region 42 shown in fig. 6 are merely illustrative, and in fact the low temperature region 42 is not disposed at the positions shown in the drawing in the present embodiment). The low temperature areas 42 on the plurality of heat-return plates 41 correspond to each other, and the high temperature areas 43 correspond to each other, so that a plurality of heat exchange holes corresponding to the low temperature areas 42 can be connected in series to form a gas flow channel for flowing external gas flow, and simultaneously, a plurality of heat exchange holes corresponding to the high temperature areas 43 are connected in series to form a gas flow channel for flowing flue gas, and heat exchange is realized when the external gas flow and the flue gas flow respectively flow based on the corresponding gas flow channel.

The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.

Claims

1. A hydrogen production system, comprising:

a housing;

the sleeve assembly is positioned outside the shell, one end of the sleeve assembly extends into the shell and penetrates through the burner and the catalyst, and is at least communicated with the catalyst, and the sleeve assembly comprises a plurality of inner sleeve pipe groups which are at least used for conveying hydrogen production fuel to the catalyst and outputting the gas to be purified;

The sleeve assembly further comprises an outer sleeve which is sleeved outside the inner sleeve groups simultaneously, the outer sleeve is communicated with the burner, and one end of part of the inner sleeve groups extending out of the shell is communicated with the outer sleeve so as to convey the waste gas to the burner through the outer sleeve;

the burner is provided with a first chamber and a second chamber, the first chamber is used for burning the obtained object to be burned to generate heat energy, the outer sleeve is communicated with the first chamber and used for conveying exhaust gas to the first chamber, high-temperature flue gas is formed by burning, the flue gas at least flows through the catalyst and the purifier to provide heat energy for the catalyst and the purifier and then is discharged through the second chamber of the burner, the inner sleeve pipe group sequentially comprises a first sleeve, a second sleeve and a third sleeve from inside to outside, the first sleeve and the second sleeve are communicated with the purifier, the first sleeve is used for receiving hydrogen, the second sleeve is used for receiving exhaust gas, the third sleeve is communicated with the catalyst and used for conveying received hydrogen production fuel to the catalyst, and the outer sleeve is communicated with the first chamber and the second sleeve and used for conveying the exhaust gas to the first chamber and burning to generate high temperature;

The first chamber is annular and sleeved on the sleeve component;

the second cavity is annular and sleeved outside the first cavity, a first partition plate is arranged in the second cavity along the direction perpendicular to the axial direction of the sleeve assembly, a second partition plate is arranged in the second cavity along the direction parallel to the axial direction of the sleeve assembly, the first partition plate and the second partition plate are matched with each other so as to divide the second cavity into two parts, the first part is communicated with the first cavity and used for introducing received external air flow into the first cavity to support combustion, and the second part is communicated with the catalyst and used for receiving and guiding out smoke.

2. The hydrogen production system according to claim 1, wherein the burner comprises an inner tube, a middle tube and an outer tube which are sleeved in sequence from inside to outside, a baffle plate sleeved outside the outer sleeve is arranged at the end parts of the inner tube and the middle tube, the inner tube and the middle tube are mutually communicated to form the first chamber, and a space surrounded by part of the outer tube forms the second chamber;

3. The hydrogen production system of claim 1, wherein an annular catalyst top plate is arranged between the burner and the catalyst, an annular catalyst bottom plate is arranged between the catalyst and the purifier, a catalyst partition plate is arranged between an outer sleeve pipe and an inner sleeve pipe which penetrate through the catalyst so as to enclose an evaporation chamber between the outer sleeve pipe and the inner sleeve pipe which are positioned between the catalyst partition plate and the catalyst bottom plate, and the hydrogen production fuel flows out from the inner sleeve pipe and enters the evaporation chamber for gasification;

4. The hydrogen production system according to claim 3, wherein the catalyst comprises a plurality of sleeves which are sleeved at intervals in sequence and are open at two ends, the top plate of the catalyst and the bottom plate of the catalyst are respectively covered at two ends of the sleeves, the outer sleeve and the sleeves are sequentially and alternately formed into a flue gas channel and a catalyst channel from inside to outside, each catalyst channel is provided with at least one first air hole, one second air hole, one first channel and one second channel which are correspondingly communicated, each flue gas channel is provided with at least one first air hole and one second air hole which are correspondingly communicated, and the first chamber and the second chamber are respectively communicated with one flue gas channel through a corresponding first air hole or a catalyst partition plate.

5. The hydrogen production system of claim 4 wherein the vaporized hydrogen production fuel is transported to the outermost catalyst channels for catalysis through the second gas holes and second channels, then enters another adjacent catalyst channel for catalysis through the corresponding first gas holes and first channels, then enters the next adjacent catalyst channel for catalysis through the corresponding second gas holes and second channels, and enters the purifier through the gas channels to be purified which are communicated with the bottom plate of the catalyst until the gas to be purified is formed by traversing all the catalyst channels;

6. The hydrogen production system according to claim 5, wherein the purifier comprises a purifier body, a first housing and a second housing surrounding the purifier body and sleeved with each other, one end of the first housing is open, both ends of the second housing are open, the second housing is located in the first housing, a gap for flue gas to flow from the second housing to the first housing is formed between the second housing and the second housing, the sleeve assembly and the gas channel to be purified are both communicated with the purifier body, the catalyst bottom plate covers the open ends of the first housing and the second housing in the same direction, a flue gas pipe communicated with the gap and the flue gas channel is arranged in the second housing, and flue gas conveyed into the purifier by the catalyst passes through the gap, the flue gas pipe, the flue gas channel and a first through hole corresponding to the flue gas channel and enters the second chamber.

7. The hydrogen production system of claim 1, further comprising a regenerator at an end of the burner remote from the catalyst, the sleeve assembly extending through the regenerator, the regenerator comprising a low temperature zone in communication with the first chamber of the burner for delivering an external gas stream to the first chamber and a high temperature zone in communication with the second chamber of the burner for receiving and exhausting the flue gas, the flue gas and external gas stream being in thermal communication through the high temperature zone and the low temperature zone, respectively.