CN220976586U - Electric heating methanol hydrogen production converter and methanol hydrogen production integrated device - Google Patents
Electric heating methanol hydrogen production converter and methanol hydrogen production integrated device Download PDFInfo
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- CN220976586U CN220976586U CN202322099593.9U CN202322099593U CN220976586U CN 220976586 U CN220976586 U CN 220976586U CN 202322099593 U CN202322099593 U CN 202322099593U CN 220976586 U CN220976586 U CN 220976586U
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- material liquid
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 48
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 48
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000005485 electric heating Methods 0.000 title claims abstract description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims description 102
- 238000004519 manufacturing process Methods 0.000 title description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 5
- 238000009834 vaporization Methods 0.000 claims description 18
- 230000008016 vaporization Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 24
- 239000003054 catalyst Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Hydrogen, Water And Hydrids (AREA)
Abstract
The utility model relates to an electric heating methanol-to-hydrogen converter and a methanol-to-hydrogen integrated device, which comprise a shell side for accommodating a heat conducting medium, a first tube side for gasifying raw material liquid and a conversion mechanism; the shell pass is vertically arranged, and two ends of the first tube pass are sealed and inserted into the shell pass; the conversion mechanism comprises a second tube pass, the second tube pass is arranged in the shell pass and is used as a conversion tube, is vertically arranged and is wrapped by a heating medium, so that a conversion execution area for carrying out catalytic reaction on the vaporized raw material liquid and generating conversion gas containing hydrogen is formed; the shell side is also provided with a circular heat exchange tube bundle mechanism which is sleeved on the periphery of the conversion mechanism and comprises a heat exchange tube, an upper circular tube and a lower circular tube for heating raw material liquid; also comprises an electric heating heat conducting medium mechanism.
Description
Technical Field
The utility model relates to the technical field of hydrogen production technology and hydrogen production equipment, in particular to an electric heating methanol hydrogen production converter and a methanol hydrogen production integrated device.
Background
The vaporization superheater and the converter are core equipment in the methanol hydrogen production device, and raw material liquid enters the vaporization superheater to exchange heat with heat conduction oil, and then enters the converter to carry out catalytic reaction after vaporization, so as to produce converted gas containing hydrogen.
The two sets of devices of the vaporization superheater and the converter occupy larger space, and the heat conduction oil system needs to pass through the vaporization superheater and then enter the converter to provide heat required by reaction, so that the pipeline of the heat conduction oil system is thicker, the arrangement is inconvenient during piping, and the external circulation also can cause certain heat loss.
With the development of a device for producing hydrogen by prying armoured alcohol, how to reduce the volume of a vaporization superheater and a converter and skid-mount the vaporization superheater and the converter into blocks becomes an important subject.
Therefore, it is necessary to provide an electrically heated methanol to hydrogen converter and an integrated methanol to hydrogen device.
Disclosure of utility model
The utility model aims to provide an electric heating methanol-to-hydrogen converter and a methanol-to-hydrogen integrated device.
The technical scheme 1 is as follows:
An electric heating methanol hydrogen production converter comprises a shell side for containing a heat conducting medium, a first tube side for gasifying raw material liquid and a conversion mechanism;
the shell pass is vertically arranged, and two ends of the first tube pass are sealed and inserted into the shell pass;
the conversion mechanism comprises a second tube pass, the second tube pass is arranged in the shell pass and is used as a conversion tube, is vertically arranged and is wrapped by a heating medium, so that a conversion execution area for carrying out catalytic reaction on the vaporized raw material liquid and generating conversion gas containing hydrogen is formed;
the shell side is also provided with a circular heat exchange tube bundle mechanism which is sleeved on the periphery of the conversion mechanism and comprises a heat exchange tube, an upper circular tube and a lower circular tube for heating raw material liquid;
The electric heating heat-conducting medium mechanism comprises resistance wires which are used for penetrating and matching with the conversion mechanism and the circular heat exchange tube bundle mechanism.
Further, the circular heat exchange tube bundle mechanism comprises a raw material liquid lower inlet and a raw material liquid outlet; the raw material liquid is injected from a raw material liquid lower inlet and flows out from a raw material liquid outlet.
Further, the heat conducting medium is composed of heat conducting oil.
Further, the shell side comprises an upper inlet of the heat conducting medium and a lower outlet of the heat conducting medium.
Further, the second tube side comprises a raw material liquid inlet and a vaporization superheated gas outlet; the raw material liquid inlet is arranged at the bottom of the second tube side, and the vaporization heating gas outlet is arranged at the top of the second tube side.
Further, the conversion mechanism also comprises an upper sealing head and a lower sealing head which are respectively arranged at two ends of the conversion pipe.
Further, the upper end socket and the lower end socket are respectively connected to two ends of the conversion mechanism through flanges.
Further, the conversion mechanism also comprises an upper tube plate and a lower tube plate; the two ends of the conversion tube are respectively and fixedly connected with the upper tube plate and the lower tube plate.
Further, the utility model also comprises a support lug arranged at the bottom.
The technical scheme 2 is as follows:
An integrated device for producing hydrogen from methanol comprises an electric heating methanol hydrogen production converter.
Compared with the prior art, the utility model has the beneficial effects that:
1) After the vaporization superheater, the converter and the electric heating conduction oil furnace are integrated, the occupied area is reduced, so that the device is more compact and is convenient to skid-mount and transport;
2) The heat of the heat conduction oil is fully utilized, the heat loss is reduced, the energy consumption of the device is reduced, and the load of a heat supply system of the heat conduction oil is reduced;
3) The automatic control measures of pipelines and meters are reduced, the automatic control of the device is facilitated, and the investment cost is reduced;
4) The heat of the heat conduction oil is effectively utilized; the temperature difference of the electrically-heated heat-conducting oil is not large, so that the thermal stress of the equipment is reduced, the service life of the equipment is prolonged, and the equipment is safer and more stable;
5) The catalyst start-up reduction time and the temperature rise time are reduced, and the debugging time can be shortened.
Drawings
Fig. 1 is a schematic structural view of a circular heat exchanger tube bundle mechanism.
Fig. 2 is a schematic diagram of the structure of an electrically heated methanol to hydrogen converter.
FIG. 3 is a schematic illustration of the reaction scheme for an electrically heated methanol to hydrogen converter.
Detailed Description
Example 1:
referring to fig. 1, this embodiment shows a methanol to hydrogen converter comprising:
shell side 1 for accommodating heat transfer oil;
the two ends of the first tube pass 2 are sealed and inserted into the second tube pass 3;
The conversion mechanism comprises a second tube side 3 serving as a conversion tube, is wrapped by a heating medium and is used for carrying out catalytic reaction on the vaporized raw material liquid to generate conversion gas containing hydrogen;
the first tube side 2 is arranged in the shell side 1 and sleeved on the periphery of the second tube side 3; the first tube side 2 comprises a heat exchange tube, an upper circular tube and a lower circular tube and is used for circulating raw material liquid.
In the embodiment, the electric heating methanol hydrogen production converter integrates the vaporization superheater, the converter and the electric heating conduction oil to form the heat exchanger with multiple tube passes, so that the volume of three devices is reduced on the premise of ensuring the heat exchange effect;
Under the same hydrogen production scale, the heat exchange area can be effectively reduced, the heat exchange efficiency can be improved, the conversion efficiency can be improved, the circulation quantity and the pressure drop of the heat conduction oil can be reduced, and the device is more compact so as to be convenient for skid-mounting and transportation.
In actual use, the tube side 1 is a circular heat exchange tube bundle; the heat pipe bundle is not limited to smooth pipes, and also comprises spiral winding pipes, finned pipes and the like; the shell side is provided with a methanol conversion system and a vaporization overheating system.
In addition, the tube side 1 circular heat exchange tube bundle adopts an integral heat treatment process to eliminate stress, and the conversion tube can adopt DN45 pipelines.
In practical operation, in the integrated converter, the shell side operating pressure can reach 0.5MPag, and the operating pressure in the conversion tube can reach 2.5MPag.
The first tube side 2 further comprises a heat conducting oil filling port N5, a heat conducting oil discharging port N6 and an electric heating device.
The heat supply medium is heat conduction oil.
In actual use, the inner cavity is provided with a conversion tube; the heat transfer oil is used to supply heat between the conversion pipes, and the heat supply medium also comprises steam, hot water, other crude oil and the like.
The conversion pipe comprises a raw material liquid inlet N1 and a vaporization superheated gas outlet N2; the raw material liquid inlet N1 is arranged at the bottom of the shell pass 1, and the vaporized hot gas outlet N2 is arranged at the top of the shell pass 1.
Thus, the raw material liquid is vaporized in the conversion pipe, and the vaporized superheated gas is discharged from the top and enters from the top of the conversion mechanism, so that the conversion reaction is performed.
The conversion mechanism also comprises an upper sealing head 5 and a lower sealing head 7 which are respectively arranged at the two ends of the conversion pipe.
The upper seal head 5 and the lower seal head 7 are respectively connected with two ends of the conversion mechanism through flanges.
In actual use, the inner cavity extends out of the outer cavity, and the upper seal head 7 and the lower seal head of the part extending out of the outer cavity can be connected by adopting flanges.
The conversion mechanism also comprises an upper tube plate 4 and a lower tube plate 6; the two ends of the conversion tube 3 are respectively fixedly connected with the upper tube plate 4 and the lower tube plate 6.
In actual use, both ends of the conversion tube are fixed by the tube plates.
In addition, heat treatment can be used to relieve stress at the tube sheet and the conversion tube in the inner cavity.
The methanol hydrogen production converter also comprises a support lug which is arranged in the middle of the methanol hydrogen production converter.
In actual use, the outer side of the converter can be installed in the form of lugs or supporting legs; the pipe orifice can be connected by adopting a flange.
The electric heating heat conducting medium mechanism 8 is further included, and the electric heating heat conducting medium mechanism 8 comprises resistance wires which are used for penetrating and matching with the conversion mechanism and the circular heat exchange tube bundle mechanism.
By applying the methanol to hydrogen production converter, the following can be obtained:
1) Specific application example 1:
When the integrated converter is adopted, under the same condition, the diameter of the circular ring heat exchange tube DN50, 32, the diameter 2m and the height 3m are all needed, and the heat exchange area is only 19.4 square meters; the number of the conversion pipes is 230, the diameter phi is 45 x 3, the length is 4.7 m, the heat exchange area is 152 square meters, the circulation quantity of the heat conduction oil is 40 cubic meters per hour, and the pressure drop is 50Kpag.
In the prior art, the vaporization superheater of the 500Nm 3/h methanol hydrogen production device needs 40 square meters in area, the heat exchange area of a conversion pipe is 152 square meters, the circulation amount of heat conduction oil is 45 cubic meters/hour, and the pressure drop is 2barg.
2) Specific application example 2:
When the integrated converter is adopted, the whole diameter is 2.5 meters, and the occupied area is 0.785x2.5mx2.5 m=4.9 square meters.
In the prior art, the occupied area of a vaporization superheater and a converter of the 500Nm 3/h methanol hydrogen plant is 3.5mx2=7 square meters.
3) Specific application example 3:
When the same scale device of the integrated converter is adopted, qualified hydrogen can be produced in 8 hours;
In the prior art, in the 500Nm 3/h methanol hydrogen production device, the temperature is raised from the heat conduction oil, and the catalyst is reduced until qualified hydrogen is produced, and the time is 12 hours.
Compared with the prior art, the beneficial effects of the embodiment are as follows:
1) After the vaporization superheater, the converter and the electric heating conduction oil furnace are integrated, the occupied area is reduced, so that the device is more compact and is convenient to skid-mount and transport;
2) The heat of the heat conduction oil is fully utilized, the heat loss is reduced, the energy consumption of the device is reduced, and the load of a heat supply system of the heat conduction oil is reduced;
3) The automatic control measures of pipelines and meters are reduced, the automatic control of the device is facilitated, and the investment cost is reduced;
4) The heat of the heat conduction oil is effectively utilized; the temperature difference of the electrically-heated heat-conducting oil is not large, so that the thermal stress of the equipment is reduced, the service life of the equipment is prolonged, and the equipment is safer and more stable;
5) The catalyst start-up reduction time and the temperature rise time are reduced, and the debugging time can be shortened.
The foregoing are some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (10)
1. An electrically heated methanol to hydrogen converter, characterized in that: comprises a shell side for containing a heat conducting medium, a first tube side for gasifying raw material liquid and a conversion mechanism;
the shell pass is vertically arranged, and two ends of the first tube pass are sealed and inserted into the shell pass;
the conversion mechanism comprises a second tube pass, the second tube pass is arranged in the shell pass and is used as a conversion tube, is vertically arranged and is wrapped by a heating medium, so that a conversion execution area for carrying out catalytic reaction on the vaporized raw material liquid and generating conversion gas containing hydrogen is formed;
the shell side is also provided with a circular heat exchange tube bundle mechanism which is sleeved on the periphery of the conversion mechanism and comprises a heat exchange tube, an upper circular tube and a lower circular tube for heating raw material liquid;
The electric heating heat-conducting medium mechanism comprises resistance wires which are used for penetrating and matching with the conversion mechanism and the circular heat exchange tube bundle mechanism.
2. An electrically heated methanol to hydrogen converter as in claim 1 wherein: the circular heat exchange tube bundle mechanism comprises a raw material liquid lower inlet and a raw material liquid outlet; the raw material liquid is injected from a raw material liquid lower inlet and flows out from a raw material liquid outlet.
3. An electrically heated methanol to hydrogen converter as in claim 2 wherein: the heat conducting medium is composed of heat conducting oil.
4. An electrically heated methanol to hydrogen converter as in claim 3 wherein: the shell side comprises an upper inlet of the heat conducting medium and a lower outlet of the heat conducting medium.
5. An electrically heated methanol to hydrogen converter as in claim 4 wherein: the second tube side comprises a raw material liquid inlet and a vaporization superheated gas outlet; the raw material liquid inlet is arranged at the bottom of the second tube side, and the vaporization heating gas outlet is arranged at the top of the second tube side.
6. An electrically heated methanol to hydrogen converter as in claim 5 wherein: the conversion mechanism also comprises an upper sealing head and a lower sealing head which are respectively arranged at two ends of the conversion pipe.
7. An electrically heated methanol to hydrogen converter as in claim 6 wherein: the upper end enclosure and the lower end enclosure are respectively connected with two ends of the conversion mechanism through flanges.
8. An electrically heated methanol to hydrogen converter as in claim 7 wherein: the conversion mechanism also comprises an upper tube plate and a lower tube plate; the two ends of the conversion tube are respectively and fixedly connected with the upper tube plate and the lower tube plate.
9. An electrically heated methanol to hydrogen converter as in claim 8 wherein: the utility model also comprises a support lug arranged at the bottom.
10. An integrated methanol to hydrogen device characterized by comprising an electrically heated methanol to hydrogen converter as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099593.9U CN220976586U (en) | 2023-08-07 | 2023-08-07 | Electric heating methanol hydrogen production converter and methanol hydrogen production integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099593.9U CN220976586U (en) | 2023-08-07 | 2023-08-07 | Electric heating methanol hydrogen production converter and methanol hydrogen production integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220976586U true CN220976586U (en) | 2024-05-17 |
Family
ID=91056384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322099593.9U Active CN220976586U (en) | 2023-08-07 | 2023-08-07 | Electric heating methanol hydrogen production converter and methanol hydrogen production integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220976586U (en) |
-
2023
- 2023-08-07 CN CN202322099593.9U patent/CN220976586U/en active Active
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