CN112777567A

CN112777567A - Hydrogen production device

Info

Publication number: CN112777567A
Application number: CN202110012308.8A
Authority: CN
Inventors: 张会强
Original assignee: Guangdong Alcohol Hydrogen New Energy Research Institute Co Ltd
Current assignee: Sichuan Woyouda Technology Co ltd
Priority date: 2020-12-10
Filing date: 2021-01-06
Publication date: 2021-05-11
Anticipated expiration: 2041-01-06
Also published as: CN112777567B; CN214693318U; CN214936047U

Abstract

The embodiment of the invention discloses a hydrogen production device, which comprises: a steam generator for generating steam required for hydrogen production, comprising: the liquid storage part is internally provided with a liquid storage cavity and is provided with a transfusion inlet communicated with the liquid storage cavity; the steam pipe is internally provided with a steam accommodating cavity; the vapor transmission pipe is communicated with the liquid storage cavity and the vapor containing cavity, and a combustion catalyst is filled around the vapor transmission pipe; the hydrogen generator is used for preparing hydrogen and is internally provided with a hydrogen generating space; and the steam generator is communicated with the hydrogen generator through the steam conveying pipe. The embodiment solves the problems that the heat utilization rate is low, the heating mode is single, the temperature required in the hydrogen production process cannot be ensured and controlled, and the hydrogen production efficiency is low.

Description

Hydrogen production device

Technical Field

The invention relates to the technical field of chemical equipment, in particular to a hydrogen production device.

Background

With the use of traditional mineral energy in large quantities, the atmospheric pollution is increasingly serious, and mineral resources are gradually exhausted, so that an environment-friendly and efficient clean energy source, such as solar energy, hydroenergy, wind energy and hydrogen energy, is urgently needed. Among them, hydrogen can be burnt cleanly and is an ideal energy, but in the process of hydrogen production, the production environment needs to be strictly controlled, and once hydrogen leaks, serious safety accidents can be caused.

In the existing hydrogen production process, a certain amount of tail gas is left after reactants are filtered, the main components of the tail gas are methane and hydrogen, and the generated tail gas is converted into internal energy by using a combustion catalyst. The small volume in the pipe leads to small placing space of the combustion catalyst, so that the quantity of the combustion catalyst is insufficient, and the tail gas conversion is incomplete; and the combustion catalyst is arranged in the tube and is not easy to replace.

Disclosure of Invention

The invention aims to provide a hydrogen production device, wherein a steam generating medium is placed in a pipe, a combustion catalyst is placed outside the pipe, and the combustion catalyst is separated by a porous plate, so that tail gas is fully contacted with the combustion catalyst, and the tail gas is utilized to the maximum.

The embodiment of the invention provides a hydrogen production device, which comprises: a hydrogen generator for generating hydrogen and having a hydrogen generating space therein; a steam generator for generating steam required for hydrogen production, comprising: the liquid storage part is internally provided with a liquid storage cavity and is provided with a transfusion inlet communicated with the liquid storage cavity; at least one steam pipe, the inside has steam to hold the lumen; a sleeve which is sleeved outside the at least one steam pipe, and at least a combustion catalyst layer is arranged between the steam pipe and the sleeve; the steam generator is communicated with the hydrogen generator through the steam conveying pipe; the steam generator is communicated with the liquid storage cavity and the steam accommodating cavity.

The technical effect achieved after the technical scheme is adopted is as follows: the combustion catalyst layer is arranged between the steam pipe and the sleeve, so that the combustion catalyst and the tail gas can fully react, and the steam in the steam pipe reaches the reaction temperature, thereby improving the hydrogen production reaction efficiency and the hydrogen production rate.

In an embodiment of the present invention, a heat storage layer is further disposed between the steam pipe and the sleeve, and the combustion catalyst layer is spaced apart from the heat storage layer.

The technical effect achieved after the technical scheme is adopted is as follows: the heat storage layer is used for absorbing heat generated by tail gas, further heats steam of at least one steam pipe and is beneficial to fully utilizing reaction heat.

In one embodiment of the present invention, each of the combustion catalyst layer and the heat storage layer includes at least one layer, and a perforated plate is provided between the two layers, the perforated plate sequentially spacing the combustion catalyst layer and the heat storage layer in a vertical direction when the perforated plate is laterally disposed; when the porous plate is disposed longitudinally, the porous plate sequentially spaces the combustion catalyst layer and the heat storage layer in the horizontal direction.

The technical effect achieved after the technical scheme is adopted is as follows: the combustion catalyst layer and the heat storage layer are separated by a porous plate, so that the combustion catalyst and the heat storage material can be replaced more easily.

In one embodiment of the invention, the combustion catalyst layer is also internally provided with a heat storage material, and the combustion catalyst layer is also internally provided with at least one layer of porous plate which divides the combustion catalyst layer into a plurality of layers of intervals.

The technical effect achieved after the technical scheme is adopted is as follows: directly adding a heat storage material in the combustion catalyst layer, and absorbing heat generated by tail gas and the combustion catalyst by the heat storage material; and the at least one layer of porous plate is used for dividing the combustion catalyst into a plurality of layers at intervals, so that the tail gas can fully react.

In one embodiment of the present invention, the vapor generation device further includes: the tail gas cavity is arranged at the bottom of the sleeve and communicated with the tail gas inlet; the mist lets in the pipe, intercommunication tail air cavity side includes: an air inlet pipe, a tail gas inlet pipe and/or a methanol inlet pipe.

The technical effect achieved after the technical scheme is adopted is as follows: the tail gas inlet pipe is used for introducing tail gas to carry out combustion exothermic reaction, so that the tail gas is favorably recycled, and the energy is saved; the methanol inlet pipe is used for introducing methanol to be matched with tail gas and air for combustion, so that the combustion reaction is more thorough, and the steam preparation efficiency is improved.

In one embodiment of the invention, a first electric heating element is arranged in the steam delivery pipe, and one end of the first electric heating element is connected to the top of the steam pipe.

The technical effect achieved after the technical scheme is adopted is as follows: when the self heat of the waste gas and the heat generated by the tail gas are not enough to vaporize the steam generating medium, the first electric heating element is started to heat the steam generating device so that the steam generating device keeps the state of temperature required to be maintained for vaporization.

In one embodiment of the invention, the first electric heating elements are arranged in different lengths; the first long electric heating piece penetrates through the steam transmission pipe, and a plurality of first heat exchange fins are arranged at the bottom end of the first long electric heating piece; a plurality of second heat exchange fins are arranged on the first short electric heating element.

The technical effect achieved after the technical scheme is adopted is as follows: the first electric heating parts are arranged to be different in length, the long first electric heating parts penetrate through the steam transmission pipe in length, the fins are arranged on the periphery of the short first electric heating parts, the steam generator is maintained to uniformly generate heat, energy consumption is reduced, and the steam transmission pipe is uniformly heated.

In one embodiment of the present invention, the vapor tube is externally sleeved with a plurality of third heat exchange fins.

The technical effect achieved after the technical scheme is adopted is as follows: through a plurality of third heat transfer fin, make the effect of being heated of vapor tube promotes and is heated more evenly.

In one embodiment of the present invention, the hydrogen generator further includes: a hydrogen generation catalyst is arranged in the hydrogen generation cavity, the top of the hydrogen generation cavity is communicated with the steam transmission pipe, and the bottom of the hydrogen generation cavity is communicated with the hydrogen discharge pipe; and the second electric heating parts are connected with one end of the hydrogen production device and extend into the hydrogen generation cavity to provide reaction temperature for hydrogen production reaction.

The technical effect achieved after the technical scheme is adopted is as follows: and a reaction temperature is provided for hydrogen production reaction through the plurality of second electric heating elements, so that the steam reacts with the hydrogen production catalyst in the hydrogen generation cavity to produce hydrogen.

In one embodiment of the present invention, the hydrogen generator further includes: a fluid level assembly, comprising: a fluid level chamber, comprising: the liquid level cavity inlet is positioned at the top or the upper side surface of the liquid level cavity and communicated with the vapor discharge pipe; the liquid level cavity outlet is positioned at the bottom or the lower side surface of the liquid level cavity and communicated with the infusion inlet; the liquid level meter is fixed at the top of the liquid level cavity and used for detecting the liquid level height in the liquid level cavity; and the liquid level assembly drain pipe is communicated with the bottom or the lower side surface of the liquid level cavity.

The technical effect achieved after the technical scheme is adopted is as follows: the top of the liquid level assembly is communicated with the top of the heating cavity, and the bottom of the liquid level assembly is communicated with the bottom of the heating cavity, so that the liquid level in the liquid level cavity is the same as the liquid level in the heating cavity, the liquid level in the liquid level cavity can be measured to obtain the liquid level of the heating cavity, and the liquid supplement of the heating cavity is facilitated; the liquid level assembly drain pipe is used for draining liquid in the liquid level assembly when the air is cold so as to prevent freezing.

In summary, the above embodiments of the present application may have one or more of the following advantages or benefits: i) a combustion catalyst is filled between the steam pipe and the sleeve, so that the addition amount of the combustion catalyst is increased, and the use efficiency of tail gas is improved; ii) a heat storage layer is filled between the steam pipe and the sleeve, and the heat emitted by the tail gas is absorbed by a heat storage material to further heat the steam of the steam pipe, so that the heat of the reaction is fully utilized; iii) tail gas generated by hydrogen production is recycled, so that the effects of energy conservation and emission reduction are realized; iv) the steam generator and the hydrogen generator are arranged annularly, so that the steam generator and the hydrogen generator are integrated, and the efficiency of hydrogen production is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a hydrogen production apparatus 100 according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the pipeline in fig. 1.

Fig. 3 is a schematic view illustrating positions of the vapor generator 110 and the hydrogen generator 120 of fig. 1.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a sectional view taken along the line a-a in fig. 4.

Fig. 6 is a schematic view of the structure of the steam generator 110 of fig. 1.

Fig. 7 is a schematic structural view of the hydrogen generator 120 of fig. 1.

Fig. 8 is a schematic view of the internal structure of the steam generator 110 of fig. 1.

Fig. 9 is a schematic view showing the installation of the first long electric heating member 161 and the first short electric heating member 162.

Fig. 10 is a schematic structural view of the liquid storage portion 111.

Description of the main element symbols: 100 is a hydrogen production device; 110 is a steam generator; 111 is a liquid storage part; 112 is a liquid storage cavity; 113 is an infusion inlet; 114 is a vapor tube; 116 is a liquid inlet pump; 117 is a vapor outlet; 120 is a hydrogen generator; 121 is a hydrogen generating space; 122 is a hydrogen production catalyst; 123 is a hydrogen discharge pipeline; 124 is a hydrogen-producing heat-preserving shell; 125 is a hydrogen production porous plate; 131 is a combustion catalyst; 132 is a heat storage material; 140 is a sleeve; 141 is a vapor transmission pipe; 143 is a condensed water discharge pipe; 144 is a pressure sensor; 151 is a perforated plate; 152 is a tail gas input cavity; 153 is a tail gas reaction cavity; 154 is an exhaust gas output cavity; 155 is a tail gas inlet; 156 is the exhaust opening; 157 is a flow meter; 158 is an electromagnetic valve; 159, a tail gas inlet pipe; 160 is a first electric heating element; 161 is a first long electric heating element; 162 is a first short electric heating element; 163 are first heat exchange fins; 164 is a second heat exchange fin; 171 is a third heat exchange fin; 172 is a second electric heater; 173 is a second porous barrier plate; 180 is a liquid level meter; 181 is an air inlet pipe; 182 is a fan; 183 is a plate heat exchanger; 184 is a liquid outlet pump; 185 is a liquid inlet pipeline; 186 is a pump-out pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, shall fall within the scope of the present invention.

Referring to fig. 1, a schematic diagram of a hydrogen production apparatus 100 according to an embodiment of the present invention, for example, includes: a vapor generator 110 for generating vapor required for hydrogen production and a hydrogen generator 120 for generating hydrogen gas by reacting with the vapor.

Specifically, in conjunction with fig. 3 and 5, the steam generator 110 includes, for example: a liquid storage portion 111 and a vapor pipe 114. Wherein, the liquid storage part 111 is provided with a liquid storage cavity 112, and the liquid storage part 111 is also provided with a transfusion inlet 113 communicated with the liquid storage cavity; the vapor tube 114 has a vapor receiving chamber therein. The liquid storage portion 111 and the vapor pipe 114 are both provided in a ring shape, and the vapor pipe 114 is provided above the liquid storage portion 111. The annular arrangement, on one hand, the hydrogen generator 120 can be arranged in the hydrogen generator, so that the space is saved; on the other hand, the annular arrangement can increase the heating and heat exchange area, improve the heat exchange efficiency and is more attractive.

Specifically, the steam pipe 114 is composed of a plurality of sleeves, which are uniformly arranged inside the steam generator 110, and a third heat exchange fin 171 is disposed outside each of the plurality of sleeves. For example, the third heat exchange fins 171 are spiral fins circumferentially disposed outside each of the plurality of tubes, and the third heat exchange fins 171 allow the temperature of the outside of the vapor tubes 114 to be better introduced into the inside of the vapor tubes 114.

Preferably, a sleeve 140 is arranged on the outer shell of the steam pipe 114, the sleeve 140 is a heat-insulating outer shell, and the sleeve 140 can also be composed of two layers of shells, wherein both the two layers of shells are heat-insulating outer shells, so that the steam accommodating cavity can be better insulated. For example, when the steam pipe 114 is operated, the temperature inside the steam pipe 114 is high, and when the outside temperature is low, the operating temperature of the steam pipe 114 is affected, so the sleeve 140 is added outside the steam pipe 114 to ensure the internal operating temperature of the steam pipe 114, thereby reducing the energy consumption required for heating and achieving the energy saving effect.

Specifically, the steam generator 110 is further provided with a tail gas input cavity 152, a tail gas reaction cavity 153 and a waste gas output cavity 154 at intervals. The tail gas input cavity 152 is arranged at the bottom of the steam generator 110, the waste gas output cavity 154 is arranged at the top of the steam generator 110, and the tail gas reaction cavity 153 is arranged between the tail gas input cavity 152 and the tail gas reaction cavity 153; alternatively, the tail gas input chamber 152 is disposed at the top of the steam generator 110, and the waste gas output chamber 154 is disposed at the bottom of the steam generator 110, which is not limited herein.

Specifically, a tail gas inlet 155 is formed in one side of the sleeve 140 close to the tail gas input cavity 152, and a waste gas opening 156 is formed in one side of the sleeve 140 close to the waste gas output cavity 154, wherein tail gas enters from the tail gas inlet 155, passes through the tail gas reaction cavity 153, becomes waste gas, and is discharged from the waste gas opening 156.

Specifically, the steam generator 110 further includes, for example: a combustion catalyst layer disposed between the vapor tube 114 and the sleeve 140, and a combustion catalyst 131 disposed therein.

For example, after hydrogen reaction and purification, certain tail gas is generated, main components of the tail gas are hydrogen and methane, and the tail gas has a high utilization value, and the tail gas enters the tail gas reaction cavity 153 from the tail gas input cavity 152 through the tail gas inlet 155, and at this time, the tail gas reacts with the combustion catalyst 131 to generate a large amount of heat, so that heat is provided for the steam pipe 114, and a waste utilization effect is achieved.

Preferably, the steam generator 110 further includes, for example: and the heat storage layer is arranged between the steam pipe 114 and the sleeve 140, and is provided with a heat storage material 132, and the heat storage material 132 is used for absorbing heat generated by tail gas, further heating steam of the steam pipe 114 and contributing to fully utilizing the heat of reaction.

Preferably, the combustion catalyst layer and the heat storage layer each comprise at least one layer, a porous plate 151 is arranged between each two layers, and when the porous plates 151 are transversely arranged, the porous plates 151 sequentially space the combustion catalyst layer and the heat storage layer in the vertical direction; when the porous plate 151 is disposed in the longitudinal direction, the porous plate 151 sequentially spaces the combustion catalyst layer and the heat storage layer in the horizontal direction, and the number and direction of the porous plate 151 may be arbitrary and is not limited herein.

Preferably, the heat storage material 132 is further disposed inside the combustion catalyst layer, so that the heat storage material 132 can more fully absorb heat generated by the exhaust gas, and the dissipation of energy in the transmission process is reduced.

Specifically, referring to fig. 9, the steam generator 110 further includes, for example: a plurality of first electric heating members 160; the plurality of first electric heating members 160 have one end connected to the top of the steam pipe 114 and one end extended into the inside of the steam pipe 114.

For example, sometimes the rate of vaporization of the vapor reaction medium is slow completely depending on the heat generated by the reaction of the exhaust gas and the combustion catalyst 131, so that a plurality of first electric heating members 160 are disposed inside the vapor pipe 114, and when the heat generated by the reaction of the exhaust gas and the combustion catalyst 131 is insufficient, the plurality of first electric heating members 160 are turned on to heat the vapor pipe 114, so as to make the temperature of the vapor pipe 114 reach the desired reaction temperature, thereby improving the working efficiency of the vapor pipe 114.

Preferably, in conjunction with fig. 6, 8 and 9, the first electric heating member 160 is divided into a first long electric heating member 161 and a first short electric heating member 162. The first long electric heating element 161 penetrates through the steam transmission pipe 141, and a first heat exchange fin 163 is arranged at the bottom end; the first short electric heating element 162 is provided with a second heat exchange fin 164.

For example, a first heat exchanging fin 163 is disposed at the bottom end of the first long electric heating element 161, a second heat exchanging fin 164 is disposed on the first short electric heating element 162, the first heat exchanging fin 163 and the second heat exchanging fin 164 are alternately disposed, the first heat exchanging fin 163 is disposed at the upper portion of the steam transmission tube 141, the second heat exchanging fin 164 is disposed at the lower portion of the steam transmission tube 141, the first heat exchanging fin 163 heats the upper portion of the steam transmission tube 141, and the second heat exchanging fin 164 heats the lower portion of the steam transmission tube 141, so that the steam transmission tube 141 is uniformly heated, and energy consumption is reduced.

Preferably, a third heat exchange fin 171 is further disposed outside the steam pipe 114, and the third heat exchange fin 171 increases the heating area of the steam pipe 114, so that the heat generated in the tail gas reaction chamber 153 is better absorbed by the steam pipe 114, thereby improving the heat utilization efficiency.

Further, referring to fig. 10, the steam generator 110 further includes, for example: the liquid storage part 111 is arranged on the steam generator 110, a liquid storage cavity 112 is arranged in the liquid storage part 111, the liquid storage cavity 112 is used for storing a steam generation medium, and the steam generation medium can be water or alcohol and a mixture of the water and the alcohol. For example, the alcohol may be, for example, methanol, ethanol, propanol, glycerol, etc.

Specifically, referring to fig. 5 and 7, the hydrogen generator 120 includes, for example, a hydrogen production heat-insulating housing 124, a hydrogen production space 121 is provided in the hydrogen production heat-insulating housing 124, a hydrogen production porous plate 125 is provided in the hydrogen production space 121, the hydrogen production space 121 is divided into a hydrogen production catalyst storage region and a vapor buffer region, and the hydrogen production catalyst 122 is disposed in the hydrogen production catalyst storage region.

For example, when the vapor enters the vapor buffer region, the vapor is uniformly distributed in the vapor buffer region under the action of the hydrogen production porous plate 125, and uniformly flows into the hydrogen production catalyst storage region through the vapor circulation holes uniformly distributed on the hydrogen production porous plate 125 to perform a reaction, so that the reaction efficiency of the hydrogen production catalyst 122 is improved; meanwhile, the arrangement of the hydrogen production porous plate 125 avoids that the hydrogen production catalyst directly and instantly passes to one side when being stored in the hydrogen production catalyst storage area, so that the overall reaction efficiency is too slow or the reaction is insufficient. The bottom of the hydrogen generator 120 is also connected to a hydrogen discharge pipe 123 for delivering the prepared hydrogen.

Specifically, a plurality of second electric heaters 172 are further provided in the hydrogen generator 120. For example, when the reaction rate of the hydrogen production catalyst 122 is slow due to the heat in the hydrogen generator 120, the second electric heater 172 is turned on to reach the reaction temperature inside the hydrogen generator 120, and the second electric heater 172 is turned off.

Preferably, the steam generator 110 and the hydrogen generator 120 are arranged in a loop; for example, the steam generator 110 and the hydrogen generator 120 are arranged in a loop, so that the overall volume of the device is reduced compared with the case that the steam generator 110 and the hydrogen generator 120 are arranged independently, and the device is convenient to place and move; meanwhile, the ring sleeve is arranged, so that the overall sealing performance of the device is improved, and the heat loss is slowed down.

Further, the installation manner between the steam generator 110 and the hydrogen generator 120 may be that the steam generator 110 is sleeved outside the hydrogen generator 120 as shown in the figure I; the vapor generator 110 may be sleeved inside the hydrogen generator 120, which is not limited herein.

For example, when the vapor generator 110 is sleeved outside the hydrogen generator 120 or the vapor generator 110 is sleeved inside the hydrogen generator 120, the distance of the vapor flowing out of the vapor generator 110 into the hydrogen generator 120 is shortened, the heat loss is reduced, and the heat utilization rate is improved.

Specifically, referring to fig. 1 to 3, one end of the air inlet pipe 181 is communicated with the tail gas inlet 155, and the other end is communicated with the external air, or connected to the induced draft fan 182, and the external air is discharged into the air inlet pipe 181 through the induced draft fan 182, and one side of the air inlet pipe 181 is connected to the tail gas inlet pipe 159 for inputting the tail gas; and a flow meter 157 is arranged on the tail gas inlet pipe 159 and used for recording the entering amount of the tail gas. The side of the exhaust gas inlet pipe 159 far away from the air inlet pipe 181 is also provided with a manual control valve and an electromagnetic valve 158 arranged between the flowmeter 157 and the exhaust gas inlet pipe 159.

Preferably, a methanol introduction pipe (not shown) for inputting methanol to generate heat by a reaction of the methanol with the combustion catalyst to supply heat to the hydrogen generator 120 may be further connected to one side of the air introduction pipe 181. The methanol inlet pipe and the off-gas inlet pipe 159 may be used in combination, or the methanol inlet pipe and the off-gas inlet pipe 159 may be used separately and independently, which is not limited herein.

Further, the condensed water discharge pipe 143 is sequentially communicated with the steam outlet 117 and the steam delivery pipe 141 communicated with the hydrogen generator 120 from the bottom to the top in the vertical direction, and the steam outlet 117 is provided with a first control valve; one side of the steam transmission pipe 141 is externally connected with a standby pipe, and a second control valve is arranged on the standby pipe; when the hydrogen production catalyst in the hydrogen generator 120 loses activity, the first control valve is closed, the second control valve is opened, and the reducing agent is input into the hydrogen generator 120 through the standby pipe, so that the hydrogen production catalyst 122 recovers activity and is used again; the condensed water discharging pipe 143 is further provided with a liquid level meter 180 positioned below the steam outlet 117 for storing water drops condensed by the steam and discharging the liquid in the liquid level meter 180 through the condensed water discharging pipe 143, and a connecting pipe for connecting the steam generator 110 and the condensed water discharging pipe 143 is arranged below the liquid level meter 180, so that the liquid level meter 180 can judge the height of the liquid in the steam generator 110 through the liquid level height thereof.

Specifically, the hydrogen production device 100 is further provided with a plate heat exchanger 183, the other side of the plate heat exchanger 183, which is connected with the liquid inlet pipeline 185, is further connected with a pump outlet pipe 186, and the pump outlet pipe 186 and the liquid inlet pipeline 185 are obliquely and oppositely arranged at two sides of the plate heat exchanger 183; and one end of the pump outlet pipe 186 far away from the plate heat exchanger 183 is connected with the liquid inlet pump 116. External liquid flows into the plate heat exchanger 183 through the pump outlet pipe 186 by the liquid inlet pump 116, heat exchange is carried out on the liquid by the plate heat exchanger 183, the liquid absorbs heat in the plate heat exchanger 183 and then flows into the liquid storage cavity 112 from the liquid inlet pipeline 185, heat energy flowing through the plate heat exchanger 183 is further utilized, and the energy utilization rate is greatly improved.

Further, a pressure sensor 144 is further arranged on the steam delivery pipe 141, the condensed water discharge pipe 143 is further connected with a safety pipeline, the safety pipeline is arranged between the liquid level meter 180 and the steam outlet 117, a safety valve for automatically releasing steam is arranged on the safety pipeline, and when the pressure sensor 144 detects that the steam pressure exceeds a set value, the safety valve is automatically opened to release steam, so that the hydrogen production process of the device is safer.

Further, a fan 182 is arranged on one side of the plate heat exchanger 183, a hydrogen outlet pipe and a plate-type air outlet pipe are respectively communicated with two sides of the fan 182, the plate-type air outlet pipe is communicated with one side of the plate heat exchanger 183, and the other side of the plate heat exchanger 183 is connected with a hydrogen exhaust pipeline 123 communicated with the hydrogen generator 120; the hydrogen prepared in the hydrogen generator 120 flows into the plate heat exchanger 183 through the hydrogen discharge pipeline 123 for heat exchange, then enters the fan 182 through the plate gas outlet pipe for secondary cooling, and then the hydrogen cooled to a certain temperature is discharged from the hydrogen outlet pipe to a specified target for use. For example, the cooling form of the fan 182 may be replaced by a water cooling form, which is not limited herein.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A hydrogen production apparatus, comprising:

the hydrogen generator is used for preparing hydrogen and is internally provided with a hydrogen generating space;

a steam generator for generating steam required for hydrogen production, comprising:

the liquid storage part is internally provided with a liquid storage cavity and is provided with a transfusion inlet communicated with the liquid storage cavity;

at least one steam pipe, inside of which is provided with a steam accommodating cavity;

a sleeve sleeved outside the at least one steam pipe,and at least one sleeve is arranged between the steam pipe and the sleeve Combustion catalyst layer；

The steam generator is communicated with the hydrogen generator through the steam transmission pipe; the steam generator is communicated with the liquid storage cavity and the steam accommodating cavity.

2. The hydrogen generation apparatus according to claim 1, wherein a heat storage layer is further provided between the steam pipe and the sleeve, and the combustion catalyst layer is provided at a distance from the heat storage layer.

3. The hydrogen production apparatus according to claim 2, wherein the combustion catalyst layer and the heat storage layer each comprise at least one layer, and a perforated plate is provided between each two layers, the perforated plates being arranged such that the perforated plates space the combustion catalyst layer and the heat storage layer in the vertical direction one after another; when the porous plate is disposed longitudinally, the porous plate sequentially spaces the combustion catalyst layer and the heat storage layer in the horizontal direction.

4. The hydrogen generation apparatus of claim 1, wherein a heat storage material is disposed within the combustion catalyst layer, and wherein at least one perforated plate is disposed within the combustion catalyst layer, the at least one perforated plate dividing the combustion catalyst layer into a plurality of spaced layers.

5. The hydrogen plant system of claim 1, wherein the vapor generation device further comprises:

the tail gas cavity is arranged at the bottom of the sleeve and communicated with the tail gas inlet;

the mist lets in the pipe, intercommunication tail air cavity side includes: an air inlet pipe, a tail gas inlet pipe and/or a methanol inlet pipe.

6. The hydrogen production plant according to claim 1, characterized in that a first electric heating element is arranged in the vapor transmission pipe, and one end of the first electric heating element is connected to the top of the vapor pipe.

7. The hydrogen production plant according to claim 6, characterized in that the first electric heating elements are arranged in different lengths;

the first long electric heating element penetrates through the steam transmission pipe, and a plurality of first heat exchange fins are arranged at the bottom end of the first long electric heating element; a plurality of second heat exchange fins are arranged on the first short electric heating element.

8. The hydrogen production plant according to claim 1, wherein the vapor tube is externally sheathed with a plurality of third heat exchange fins.

9. The hydrogen generation assembly of claim 1, further comprising:

a hydrogen generation cavity is internally provided with a hydrogen production catalyst, the top of the hydrogen generation cavity is communicated with the steam transmission pipe, and the bottom of the hydrogen generation cavity is communicated with the hydrogen discharge pipe;

and the second electric heating parts are connected with one end of the hydrogen production device and extend into the hydrogen generation cavity to provide reaction temperature for hydrogen production reaction.

10. The hydrogen generation assembly of claim 1, further comprising:

a fluid level assembly, comprising:

a fluid level chamber, comprising:

the liquid level cavity inlet is positioned at the top or the upper side surface of the liquid level cavity and communicated with the vapor discharge pipe;

the liquid level cavity outlet is positioned at the bottom or the lower side surface of the liquid level cavity and communicated with the infusion inlet;

the liquid level meter is fixed at the top of the liquid level cavity and used for detecting the liquid level height in the liquid level cavity;

and the liquid level assembly drain pipe is communicated with the bottom or the lower side surface of the liquid level cavity.