CN210795757U

CN210795757U - Hydrogen production machine

Info

Publication number: CN210795757U
Application number: CN201921531852.8U
Authority: CN
Inventors: 张会强
Original assignee: Luoyang Woda Energy Saving Technology Co ltd
Current assignee: Luoyang Woda Energy Saving Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-09-16
Publication date: 2020-06-19
Anticipated expiration: 2029-09-16
Also published as: CN211310825U; CN210915299U; CN210915298U; CN211310827U; CN211310826U; CN210973872U; CN210973871U

Abstract

The utility model provides a hydrogen manufacturing machine, be in including stove courage and ring cover the outer casing of stove courage, the oven inboard be provided with raw materials liquid chamber and evaporation space, evaporation space and raw materials liquid chamber between communicate through a plurality of boiler tubes, the oven outside be provided with the intermediate layer be provided with the steam chamber between casing and the stove courage, the raw materials liquid chamber steam that is heated and forms can get into the steam chamber through the evaporation space, the steam chamber be provided with the pipeline that the intercommunication intermediate layer is used for steam exchange, steam chamber upper portion form catalysis room, gas receiver in proper order, the gas receiver be connected with the device that is used for purifying hydrogen. The utility model discloses can be higher to the heat that the external world provided under the same raw materials, the thermal efficiency is high, can guarantee the required suitable temperature of catalyst simultaneously.

Description

Hydrogen production machine

Technical Field

The utility model relates to the technical field of chemical equipment, in particular to a hydrogen production machine.

Background

With the limited nature of conventional energy and the increasing prominence of environmental issues, new energy with the characteristics of environmental protection and regeneration is gaining more and more attention from various countries. With the limited nature of conventional energy and the increasing prominence of environmental issues, new energy with the characteristics of environmental protection and regeneration is gaining more and more attention from various countries. In the research of various new energy sources, hydrogen is the first choice of researchers in a completely clean combustion mode and with the advantage of being renewable.

In the prior art, the preparation of hydrogen also needs high temperature, so industrial combustion furnaces are needed, the industrial combustion furnaces mainly comprise a combustion furnace main body, a combustion chamber is formed in the main body, the upper end of the combustion chamber is a flame opening, and the lower end of the combustion chamber is connected with a gas source or a fuel source. When the industrial furnace is used, the valve is opened, fuel is conveyed into the combustion chamber, the fuel and air are mixed and then combusted in the combustion chamber, and the combusted flame is radiated to a material to be heated in the industrial furnace through the flame opening to heat or melt the material.

At present, an alcohol-based raw material is introduced into a combustion furnace, a catalyst is added into the combustion furnace, the alcohol-based raw material is evaporated at a high temperature and decomposed under the action of the catalyst to form mixed gas such as hydrogen, the combustion temperature of combustible materials in a hearth is very high, but the temperature required by the catalyst with good activity is far lower than the temperature of the hearth, and the problem that how to balance the temperature of the hearth and the temperature required by the catalyst is urgently solved in the process of preparing hydrogen by using the alcohol-based raw material is solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a hydrogen manufacturing machine, the furnace inner structure of can rationally arranging, the required temperature of fine balanced furnace temperature and catalyst can guarantee the required suitable temperature of furnace's high temperature and catalyst.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a hydrogen manufacturing machine, is in including stove courage and ring cover the outer casing of stove courage, the stove courage includes the oven and is located the combustion chamber in it, the oven inboard be provided with raw materials liquid chamber and evaporation space, evaporation space and raw materials liquid chamber between through a plurality of boiler tubes intercommunication, the oven outside be provided with the intermediate layer be provided with the steam chamber between casing and the stove courage, the raw materials liquid chamber steam that forms of being heated can get into the steam chamber through evaporation space, the steam chamber be provided with the pipeline that the intercommunication intermediate layer was used for steam exchange, steam chamber upper portion form catalytic chamber, gas receiver in proper order, the gas receiver be connected with the device that is used for purifying hydrogen.

Furthermore, the furnace tubes are arranged on the inner side of the furnace wall in a fitting manner, and are special-shaped pipe fittings.

Furthermore, an outer furnace wall is arranged on the outer side of the furnace wall, and a spacing space arranged between the furnace wall and the outer furnace wall is an interlayer.

Further, set up first filter plate between steam chamber and the catalysis room for intercommunication steam chamber and catalysis room, set up the second filter plate between catalysis room and the reservoir for intercommunication catalysis room and reservoir.

Further, the evaporation space comprises a steam outlet, which communicates with the inlet of the steam chamber.

Further, the combustion chamber include the combustion outlet, combustion outlet intercommunication fume extractor, fume extractor wear to establish inside the stock solution device, can make the waste heat right the stock solution device preliminary preheat.

Further, the shell comprises an outer shell and an inner shell, and heat preservation or insulation materials are filled between the outer shell and the inner shell. The inner shell extends to the top to form an arched top surface. The air pressure at the top of the air storage chamber is higher, and the inner shell forms an arched top surface which can better bear pressure.

Further, the raw material liquid chamber is connected with a liquid level detection device.

Furthermore, the furnace tube and the inner wall of the furnace are connected by welding.

Furthermore, the inner shell extends to the top to form an arched top surface or a flat top surface, and the furnace wall extends to the top to form an arched top surface or a flat top surface.

Compared with the prior art, a hydrogen generator have following beneficial effect:

(1) the hydrogen production machine provided by the utility model can ensure the proper temperature required by the catalyst, the good balance hearth temperature and the catalysis chamber temperature, and avoid the overhigh temperature of the catalyst after the heat insulation and temperature reduction of the furnace wall, so that the catalyst can play the role of catalysis to the maximum extent, and the alcohol-based raw material can fully generate chemical reaction;

(2) the utility model provides a pair of hydrogen manufacturing machine separates the space of different functions through the oven rational in infrastructure with whole furnace body, the alcohol group raw materials including methyl alcohol composition is heated and takes place the reaction under the catalytic action and generate hydrogen and be the leading mist, obtains hydrogen after purifying the mist again, compact structure to practice thrift equipment space, practice thrift manufacturing cost, energy-concerving and environment-protective simultaneously.

Drawings

FIG. 1 is a diagram of a hydrogen production plant according to an embodiment of the present invention;

FIG. 2 is a sectional view of a liquid storage tank in a hydrogen production apparatus according to an embodiment of the present invention;

FIG. 3 is a sectional view of a second hydrogen generator according to an embodiment of the present invention;

FIG. 4 is a sectional top view of a second hydrogen generator E-E according to an embodiment of the present invention.

Description of reference numerals:

1-combustor, 10-shell, 101-outer shell, 102-inner shell, 103, top cover; 1031-outer cover, 1032-inner top wall, 104-base, 1041-outer bottom shell, 1042-inner bottom shell, 11-combustion chamber, 111-furnace wall, 111 b-furnace tube, 1111-first inner wall, 1112-second inner wall, 112-combustion outlet, 113-furnace outer wall, 114-interlayer, 12-raw material liquid chamber, 121-first interface, 122-second interface, 123-third interface, 124-fourth interface, 125-steam outlet, 126-first safety port, 13-steam chamber, 131-steam inlet, 14-catalysis chamber, 141-first filter plate, 142-second filter plate, 143-input and output port, 144-temperature sensor, 15-gas storage chamber, 151-gas output port, 152-second safety port, 16-evaporation chamber, 17-burner, 172-fuel pipeline, 1721-fuel inlet, 18-furnace, 2-liquid storage tank, 21-smoke exhaust pipe, 211-smoke exhaust port, 212-smoke exhaust port, 22-liquid storage cavity, 221-liquid storage tank port, 3-gas storage tank and 31-hydrogen outlet.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The descriptions in the present application relating to "first", "second", "upper", "middle", "lower", "top", "bottom", etc., are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of the number of technical features indicated. Thus, features defined as "first," "second," "upper," "middle," "lower," "top," "bottom" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments can be combined with each other, but it is necessary to be able to realize that the technical solutions in the embodiments can be combined with each other on the basis of the realization of a person having ordinary skill in the art, and all that is required by the present invention is within the protection scope of the present invention.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In a first embodiment, as shown in fig. 1 and 2, a hydrogen production apparatus includes a hydrogen production machine 1, a liquid storage tank 2, and a gas storage tank 3, where the liquid storage tank 2 is connected to the hydrogen production machine 1 and is configured to supplement a raw material liquid into the hydrogen production machine 1 to maintain a preparation process of a hydrogen-containing gas, the gas storage tank 3 is connected to the hydrogen production machine 1 and is configured to collect the hydrogen-containing gas prepared in the hydrogen production machine 1, and then is connected to a hydrogen purification apparatus to produce hydrogen, the raw material liquid contained in the liquid storage tank 2 is a mixed liquid of water and methanol in a certain proportion, and is introduced into the hydrogen production machine 1, the mixed liquid of water and methanol in the hydrogen production machine 1 is heated to form mixed vapor, the mixed vapor is catalyzed by a catalyst to perform a chemical reaction to generate a mixed gas of hydrogen and carbon monoxide, and a small amount of carbon dioxide, where hydrogen is mainly referred to as, purifying the hydrogen through pipeline output.

The hydrogen production machine 1 can also be provided with different raw materials, the raw material liquid can be a mixture of water and alcohols, such as a mixed liquid of water and ethanol, a mixed liquid of water and propanol, or a mixed liquid of methanol, and the like, and the prepared combustible gas is a mixed gas of hydrogen, carbon monoxide and carbon dioxide; the raw material liquid can also be alcohols, such as methanol, ethanol, propanol, glycerol and the like, and the prepared combustible gas is a mixed gas of hydrogen, carbon monoxide and carbon dioxide;

for the arranged catalyst, the corresponding catalyst in the prior art is selected according to different raw material liquid components, for example, the raw material of the hydrogen production machine in this embodiment is water and methanol raw material liquid, the catalyst is a special dehydrogenation catalyst, such as a copper-based catalyst and a nickel-based catalyst, and the general reaction temperature is 200 ℃ to 500 ℃, which is not described herein again in view of that the catalysts are all the prior art.

Similarly, the hydrogen purification device may be an adsorption device in the prior art, such as a conventional pressure swing adsorption separation device, etc., for adsorbing the non-hydrogen components in the hydrogen-rich gas, or may be another gas separation device in the prior art, such as a conventional membrane separation device, a low-temperature condensation separation device, etc.; since it is a prior art, it is not described herein in detail.

With reference to fig. 1, fig. 3 and fig. 4, the hydrogen generator 1 is mainly formed by a cylindrical furnace body surrounded by a shell 10, and the shell 10 is filled with a heat insulating material.

The top of hydrogen manufacturing machine 1 sets up first interface 121, steam outlet 125, set up liquid level device between first interface 121 and the second interface 122, the bottom sets up third interface 123, third interface 123 is the fluid infusion mouth, be used for being connected so that in time add raw materials liquid with liquid storage pot 2, liquid level device connects between two interfaces that have the difference in height, not only be limited to between first interface 121 and the second interface 122, the effect of other interfaces also can be adjusted according to actual need, hydrogen manufacturing machine 1 bottom packing has refractory material, and set up fourth interface 124, be used for the blowdown.

The top of the hydrogen production machine 1 is also provided with an air outlet interface 151, the air outlet interface 151 is communicated with a gas storage tank 3, hydrogen is collected by leading hydrogen mixed gas into the gas storage tank 3 and is led out through a hydrogen outlet 31, the hydrogen is purified after being connected with a hydrogen purification device, and the gas storage tank 3 also has the function of adjusting pressure.

The lower part of the hydrogen production machine 1 is provided with a combustion outlet 112, and the combustion outlet 112 is connected with a smoke exhaust interface 212 in the liquid storage tank 2.

As shown in fig. 2, the liquid storage tank 2 includes at least two chambers, one is a liquid storage chamber 22, the other is a smoke exhaust pipe 21, the liquid storage chamber 22 is provided with a liquid storage tank interface 221, and is connected to the third interface 123 through a pipeline to supplement the raw material liquid in the raw material liquid chamber 12 of the hydrogen production machine 1; the bottom of the smoke exhaust pipe 21 is provided with a smoke exhaust interface 212, the top of the smoke exhaust pipe 21 is provided with a smoke exhaust port 211, the smoke exhaust interface 212 is connected with the combustion outlet 112, a smoke extractor is arranged on the smoke exhaust port 211, smoke combusted in the combustion chamber 11 is exhausted from the smoke exhaust port 211 at the top through the smoke exhaust pipe 21, the smoke can adsorb cigarette ash in the smoke exhaust pipe 21, and emission of harmful substances is reduced.

And the pipe 21 that discharges fume sets up inside stock solution chamber 22, thereby form heat transfer structure between the inside stock solution chamber 22 of liquid storage pot 2 and the pipe 21 of discharging fume for tail gas that produces in the combustion chamber 11 preheats the raw materials liquid in the stock solution chamber 22 at the exhaust in-process, can carry out abundant recycle to used heat.

The specific hydrogen production process is that the raw material liquid in the liquid storage tank 2 flows into the third interface 123 through the liquid storage tank interface 221 and enters the hydrogen production machine 1, the ignition combustion inside the hydrogen production machine 1 provides heat, the raw material liquid is heated to generate mixed steam, the mixed steam is guided into the steam inlet 131 through the steam outlet 125 and reacts under the action of a catalyst to generate hydrogen mixed gas, the hydrogen mixed gas enters the gas storage tank 3 through the gas outlet 151, and the hydrogen mixed gas is guided out through the hydrogen outlet 31 after being collected and purified.

In the second embodiment, as shown in fig. 3 and 4, the hydrogen production machine 1 includes a furnace 18 and a casing 10 sleeved outside the furnace, the casing 10 is enclosed into a cylinder, the casing 10 includes an outer casing 101 and an inner casing 102, the inner casing 102 extends to the top to form an arched top surface, and a heat insulating material or a heat insulating material is filled between the outer casing 101 and the inner casing 102; the furnace 18 of the hydrogen production machine 1 comprises a furnace wall 111, and an evaporation space 16, a raw material liquid chamber 12 and a combustion chamber 11 which are positioned in the furnace wall 111, wherein the furnace wall 111 surrounds to form a cylindrical cavity, the furnace wall 111 extends to the top to form an arched top surface, the evaporation space 16, the combustion chamber 11 and the raw material liquid chamber 12 are sequentially arranged in the cavity of the furnace wall 111 from top to bottom, the raw material liquid chamber 12 and the evaporation space 16 are communicated through a plurality of furnace tubes 111b arranged in the middle of the furnace wall 111, the plurality of furnace tubes 111b are annularly arranged on the inner surface of the furnace wall 111 at intervals, the upper end is connected with the evaporation chamber 16, the lower end is connected with the raw material liquid chamber 12, the furnace tubes 111b are, in this embodiment, the raw material liquid chamber 12 is preferably configured in a semicircular shape, the mixed steam formed by heating enters the evaporation space 16 through the furnace tube 111b, and the middle part of the furnace tube 111b is the raw material liquid and the other part is the mixed steam;

the bottom of the raw material liquid chamber 12 is provided with a first interface 121 and a fourth interface 124, the top of the evaporation space 16 is provided with a second interface 122, a third interface 123, a first safety port 126 and a steam outlet 125, in this embodiment, the first interface 121 and the second interface 122 are provided with liquid level devices, the third interface 123 is provided with a liquid supplementing port for supplementing liquid, and the fourth interface 124 is provided with a safety valve; the raw material liquid chamber 12 is further provided with a first safety port 126 and a steam outlet 125, the steam outlet 125 is used for leading out mixed steam, and the first safety port 126 is used for connecting a pressure measuring device and a pressure switch to ensure the steam pressure in the raw material liquid chamber 12 and the evaporation space 16.

The liquid level device is connected between two interfaces with height difference, not only limited between the first interface 121 and the second interface 122, but also the functions of other interfaces can be adjusted according to actual needs.

A combustion outlet 112 is communicated with the upper part of the combustion chamber 11, an evaporation chamber 16 is coated outside the upper part of the combustion chamber 11, a combustor 17 is arranged at the lower part of the combustion chamber 11, and a raw material liquid chamber 12 is annularly coated outside the combustor 17; the burner 17 is disposed in a space surrounded by a lower portion of the furnace wall 111, the burner 17 is connected to a fuel line 172, the fuel line 172 is provided with a fuel inlet 1721 for introducing a gas or liquid fuel, and the burner 17 is provided with an ignition device, preferably, the ignition device can automatically ignite and can detect flame after ignition is completed.

An air storage chamber 15, a catalytic chamber 14 and a steam chamber 13 are sequentially arranged from top to bottom in an interlayer space between the inner shell 102 and the outer wall 113 of the furnace, a steam inlet 131 is arranged at the lower part of the steam chamber 13 and is communicated with a steam outlet 125 through a pipeline, mixed steam discharged from the steam outlet 125 is led into the steam chamber 13, a first filter plate 141 is arranged at the position, connected with the steam chamber 13, of the bottom of the catalytic chamber 14 and is used for filtering the mixed steam, the filtered mixed steam enters the catalytic chamber 14, a catalyst is filled in the catalytic chamber 14 and is heated under the action of the catalyst to form mixed gas of hydrogen and carbon monoxide, a second filter plate 142 is arranged at the position, connected with the air storage chamber 15, of the top of the catalytic chamber 14 and is used for filtering generated mixed gas of hydrogen and then is led into the air storage chamber 15 so as to prevent air flow carrying catalyst particles from flowing out, an air outlet port 151 and a second safety, the second safety port 152 is used for connecting a pressure switch or a safety valve device of the hydrogen mixture, so as to ensure the stable pressure of the hydrogen mixture inside the hydrogen production machine 1.

The outer side of the furnace wall 111 is annularly coated with a furnace outer wall 113, an interlayer 114 is arranged between the furnace wall 111 and the furnace outer wall 113, the interlayer 114 is communicated with the steam chamber 13, the steam chamber 13 and the interlayer 114 are connected with a pipeline for exchanging mixed steam, a control valve is arranged on the pipeline, when the temperature in the catalytic chamber 14 is within a control range, the interlayer 114 is not filled with the mixed steam, and when the temperature is over the control range, the control valve on the communication pipeline is opened, the interlayer 114 is filled with the mixed steam, so that the temperature of the furnace wall 111 is reduced, and the temperature of the catalytic chamber 14 is prevented from being over.

In this embodiment, since the volume of the raw material liquid chamber 12 is smaller than that of the entire furnace body, the stored raw material liquid is less, the furnace tube 111b is directly arranged inside the furnace wall 111, which is equivalent to being directly located in the furnace, the temperature of the furnace is particularly high, the raw material liquid is heated quickly and evaporated quickly, the flow of the raw material liquid and the flow of the mixed steam can be beneficial to the heat dissipation of the furnace wall 111, and the heat efficiency is high, further heat dissipation is performed between the furnace wall 111 and the furnace outer wall 113 through the interlayer 114, so that the catalytic chamber 14 connected with the furnace outer wall 113 can ensure an appropriate temperature, and the excessive temperature of the catalyst is prevented from losing.

In the above embodiment, the top of the inner shell 102 is provided with a flat top or an arched top surface, and the top of the furnace wall 111 is provided with a flat top or an arched top surface.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen production machine comprises a furnace (18) and a shell (10) sleeved outside the furnace (18), wherein the furnace (18) comprises a furnace wall (111) and a combustion chamber (11) positioned in the furnace wall (111), and is characterized in that a raw material liquid chamber (12) and an evaporation space (16) are arranged on the inner side of the furnace wall (111), the evaporation space (16) is communicated with the raw material liquid chamber (12) through a plurality of furnace tubes (111b), an interlayer (114) is arranged on the outer side of the furnace wall (111), a steam chamber (13) is arranged between the shell (10) and the furnace (18), steam formed by heating the raw material liquid chamber (12) can enter the steam chamber (13) through the evaporation space (16), the steam chamber (13) is provided with a pipeline communicated with the interlayer (114) for steam exchange, and a catalytic chamber (14) and a steam chamber (13) are sequentially formed on the upper part of the steam chamber (13), The gas storage chamber (15), the gas storage chamber (15) is connected with a device for purifying hydrogen.

2. The hydrogen generator according to claim 1, wherein the plurality of furnace tubes (111b) are attached to the inner side of the furnace wall (111), and the furnace tubes (111b) are special-shaped tubes.

3. The hydrogen generator according to claim 1, characterized in that an outer furnace wall (113) is provided outside the furnace wall (111), and a space between the furnace wall (111) and the outer furnace wall (113) is an interlayer (114).

4. The hydrogen generator as claimed in claim 1, characterized in that a first filter plate (141) is arranged between the steam chamber (13) and the catalytic chamber (14) for communicating the steam chamber (13) with the catalytic chamber (14), and a second filter plate (142) is arranged between the catalytic chamber (14) and the gas storage chamber (15) for communicating the catalytic chamber (14) with the gas storage chamber (15).

5. Hydrogen generator according to claim 4, characterized in that the evaporation space (16) comprises steam vents (125), said steam vents (125) communicating with the inlet of the steam chamber (13).

6. The hydrogen production machine as claimed in claim 1, characterized in that the combustion chamber (11) comprises a combustion outlet (112), the combustion outlet (112) is communicated with a smoke exhaust device, and the smoke exhaust device is arranged in the liquid storage device in a penetrating manner, so that residual heat can preliminarily preheat the liquid storage device.

7. The hydrogen production machine according to claim 1, characterized in that the housing (10) comprises an outer housing (101) and an inner housing (102), and a thermal insulation material is filled between the outer housing (101) and the inner housing (102).

8. The hydrogen production machine according to claim 1, characterized in that a liquid level detection device is connected to the raw material liquid chamber (12).

9. The hydrogen generator according to claim 1, characterized in that the furnace tube (111b) and the furnace wall (111) are connected by welding.

10. The hydrogen generator according to claim 7, characterized in that the inner shell (102) extends to the top to form an arched top surface or a flat top surface, and the furnace wall (111) extends to the top to form an arched top surface or a flat top surface.