CN110980643A - Production line for producing hydrogen from methanol - Google Patents
Production line for producing hydrogen from methanol Download PDFInfo
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- CN110980643A CN110980643A CN201911417474.5A CN201911417474A CN110980643A CN 110980643 A CN110980643 A CN 110980643A CN 201911417474 A CN201911417474 A CN 201911417474A CN 110980643 A CN110980643 A CN 110980643A
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 37
- 239000001257 hydrogen Substances 0.000 title claims abstract description 37
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 126
- 238000009413 insulation Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 16
- 238000005485 electric heating Methods 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims abstract description 6
- 238000009826 distribution Methods 0.000 claims description 91
- 230000000903 blocking effect Effects 0.000 claims description 30
- 238000002955 isolation Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000000376 reactant Substances 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/56—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/047—Composition of the impurity the impurity being carbon monoxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/048—Composition of the impurity the impurity being an organic compound
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/0495—Composition of the impurity the impurity being water
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/085—Methods of heating the process for making hydrogen or synthesis gas by electric heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention relates to a production line for producing hydrogen from methanol, which comprises a heat exchanger, a superheater, a reactor, a cooling tower, a washing tower, a steam-water separator and a pressure swing adsorption gas separation device which are sequentially arranged and connected, wherein a heat conduction device is arranged between the reactor and the superheater, the heat conduction device comprises an insulation can, a pump body, heat conduction oil arranged in the insulation can, a first heating pipe fixed in the reactor, a second heating pipe fixed in the superheater and an electric heating pipe fixed in the insulation can, and the pump body is communicated with the insulation can; the first heating pipe is spiral, and the second heating pipe is spiral; one end of the first heating pipe penetrates out of the reactor and is communicated with the interior of the insulation can, the other end of the first heating pipe is communicated with one end of the second heating pipe, and the second heating pipe is positioned at the end communicated with the first heating pipe and is communicated with the pump body; the heat conduction oil in the heat insulation box returns to the heat insulation box through the first heating pipe and the second heating pipe through the pump body to form heat conduction circulation. The invention has the effect of saving energy.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a production line for producing hydrogen from methanol.
Background
In the prior art, methanol and desalted water are mixed according to a certain proportion, preheated by a heat exchanger, overheated by a heat exchanger and then enter a reactor to perform catalytic cracking and shift reaction on a catalyst bed layer, the produced converted gas contains about 74 percent of hydrogen and 24 percent of carbon dioxide, and enters a washing tower after heat exchange, cooling and condensation to collect residual methanol and water, and finally the gas which is transmitted out is separated and purified to prepare a hydrogen product.
At present, in the existing methanol hydrogen production process, the working temperature ranges of a superheater and a reactor are 220-260 ℃, 230 ℃ and 280 ℃, heating devices for heating the superheater and the reactor are usually made of independent electric heating pipes, the electric heating pipes are respectively distributed on the peripheral sides of the superheater and the reactor and are used for independently heating and controlling the temperatures of the superheater and the reactor, the control mode is complex, the heat loss of the electric heating pipes distributed on the peripheral sides of the superheater and the reactor is large, the heat is wasted, and the energy is not beneficial to saving energy.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a production line for producing hydrogen from methanol, which has the effect of saving energy.
The above object of the present invention is achieved by the following technical solutions:
a production line for producing hydrogen from methanol comprises a heat exchanger, a superheater, a reactor, a cooling tower, a washing tower, a steam-water separator and a pressure swing adsorption gas separation device which are sequentially arranged and connected, wherein the heat exchanger is arranged between the reactor and the cooling tower, and the reactor is communicated with the cooling tower through the heat exchanger; a heat conduction device is arranged between the reactor and the superheater, the heat conduction device comprises an insulation box, a pump body fixed on the insulation box, heat conduction oil arranged in the insulation box, a first heating pipe fixed in the reactor, a second heating pipe fixed in the superheater and an electric heating pipe fixed in the insulation box, and the pump body is communicated with the insulation box; the first heating pipe is spiral, and the spiral axis of the first heating pipe is superposed with the axis of the tank body of the reactor; the second heating pipe is spiral, and the spiral axis of the second heating pipe is superposed with the axis of the tank body of the superheater; one end of the first heating pipe penetrates out of the reactor and is communicated with the interior of the heat insulation box, the other end of the first heating pipe is communicated with one end of the second heating pipe, and the second heating pipe is positioned at the end, communicated with the first heating pipe, of the second heating pipe and is communicated with the pump body; and the heat conduction oil in the heat insulation box returns to the heat insulation box through the pump body by the first heating pipe and the second heating pipe to form heat conduction circulation.
By adopting the technical scheme, when hydrogen is produced, methanol and desalted water are mixed and enter a heat exchanger for preheating, then enter a superheater for heating to form steam and then enter a reactor, the methanol and the steam react under the action of a catalyst and high temperature of the reactor to generate hydrogen, carbon dioxide and a small amount of carbon monoxide, methanol and water, then reactants enter a cooling tower, the reactants enter a washing tower after being cooled and condensed, the washed gas is separated and purified by a steam-water separator, then the gas is sent to a pressure swing adsorption gas separation device by the steam-water separator, and impurities except the hydrogen are adsorbed, so that the product hydrogen can be obtained; in the process, the electric heating pipe is electrified and heated to heat the heat conducting oil in the heat insulation box, then the pump body is started to increase the oil pressure in the heat insulation box, so that the heat conducting oil in the heat insulation box enters the first heating pipe, the heat carried by the heat conducting oil is radiated into the reactor, the temperature in the reactor is raised, then the heat conducting oil in the first heating pipe enters the second heating pipe, the temperature in the superheater is raised, finally the heat conducting oil in the second heating pipe returns to the heat insulation box through the pump body to form heat conducting circulation, the temperature in the reactor and the superheater is raised simultaneously, compared with the existing mode that the superheater and the reactor are independently heated, the arrangement of pipelines is reduced, the heat dissipation capacity is reduced, the energy is saved, in addition, the heat conducting oil firstly passes through the reactor and then passes through the superheater, and the setting that the final working temperature of the reactor is higher than the final working temperature of, and the first heating pipe and the second heating pipe are respectively arranged in the reactor and the superheater, so that the heat loss during heating of the heat conduction oil is further reduced, and the energy is saved.
The present invention in a preferred example may be further configured to: the heat exchanger comprises an outer tank body and an inner tank body fixed in the outer tank body, and two ends of the inner tank body are respectively communicated with the reactor and the cooling tower; the outer tank body is fixed with a feed inlet communicated with the inner part of the outer tank body, and the inner part of the outer tank body is communicated with the superheater.
Through adopting above-mentioned technical scheme, when preparing hydrogen, carry a large amount of heats by gases such as hydrogen that the reactor derives and get into the cooling tower after the inner tank body, the temperature of heat exchanger has been promoted, and the outer jar of body and the inner tank body that methanol and demineralized water before getting into the over heater pass through the heat exchanger, thereby preheated methanol and demineralized water before getting into the over heater, utilized the heat that carries in gases such as hydrogen that derive from the reactor, thermal scattering and disappearing and waste have been reduced, thereby play the effect of further energy can be saved.
The present invention in a preferred example may be further configured to: an oil separator for separating heat conduction oil flowing from the first heating pipe to the second heating pipe is arranged between the superheater and the reactor, the first heating pipe is communicated with the second heating pipe through the oil separator, and a heat separation pipe arranged between the outer tank body and the inner tank body is fixed in the heat exchanger; one end of the heat distribution pipe is communicated with the oil distributor, and the other end of the heat distribution pipe is connected to a communication pipeline between the second heating pipe and the oil distributor.
Through adopting above-mentioned technical scheme, when the temperature in the over heater is about to reach its final operating temperature, the oil separator separates the conduction oil that first heating pipe leads to in the second heating pipe, make partly conduction oil pass through the heat transfer pipe, the temperature in the heat exchanger has been promoted, the condition that the heat exchanger is difficult to heat to the reactant that does not have the derivation in the reactor before hydrogen production work begins is prevented, thereby make the heat exchanger preheat before the reactor rises final operating temperature, thereby make hydrogen production work begin immediately, need not to reheat the heat exchanger in addition, the energy has been saved.
The present invention in a preferred example may be further configured to: the oil distributor comprises an oil distribution box, two ends of the oil distribution box are respectively communicated with the second heating pipe and the first heating pipe, an oil distribution pipe communicated with the oil distribution box is arranged on the oil distribution box, and one end, far away from the oil distribution box, of the oil distribution pipe is communicated with the oil distribution pipe; an oil blocking sleeve which is matched with the inner wall of the oil distribution box in a sliding manner and seals the opening of the oil distribution pipe and a driving part for driving the oil blocking sleeve to move are arranged in the oil distribution box; the oil blocking sleeve is communicated with the oil distributing box, the inner wall of the oil distributing pipe is attached and matched in a sliding mode, and a communicating opening penetrating through the oil blocking sleeve is formed in the side wall, perpendicular to the sliding direction of the oil blocking sleeve, of the oil blocking sleeve.
Through adopting above-mentioned technical scheme, when the temperature in the over heater is about to reach its final operating temperature, the drive division drive oil shutoff cover removes, make the opening that divides oil pipe intercommunication branch oil box open, thereby make the part conduction oil that gets into by first heating pipe branch oil box get into through dividing the oil pipe and get into the second heating pipe after the heat pipe again, and another part conduction oil directly gets into the second heating pipe through the intercommunication mouth, thereby make the part heat that originally is used for heating the over heater be used for promoting the heat of heat exchanger, thereby make the final operating temperature of over heater and reactor reach simultaneously, avoid the over heater internal temperature to arrive the reactor internal temperature in advance and not arrive and the vacant combustion is extravagant, play the effect of the energy can be saved.
The present invention in a preferred example may be further configured to: the driving part comprises a driving block arranged on the oil distribution box, a driving sleeve penetrating through the oil distribution box and communicated with the inner side wall of the first heating pipe, a mounting frame fixed outside the oil distribution box, a driving screw rod rotationally connected to the mounting frame, a first bevel gear sleeved on and fixed with the driving screw rod, a driving motor fixed on the mounting frame, and a second bevel gear fixed on an output shaft of the driving motor, wherein the second bevel gear is meshed with the first bevel gear; the driving sleeve is matched with the oil distribution box in a sliding mode, and the sliding direction of the driving sleeve is consistent with that of the driving block and that of the oil blocking sleeve; the opening end of the driving sleeve is arranged outside the oil distribution box, and the other end of the driving sleeve is fixed with the side wall of the driving block, which is far away from the oil plugging sleeve; one end of the driving screw rod is connected with the mounting frame, and the other end of the driving screw rod penetrates into the opening of the driving sleeve and is in threaded fit with the opening; and a connecting rod is fixed between the oil blocking sleeve and the driving block.
Through adopting above-mentioned technical scheme, when driving motor starts, its output shaft rotates, it rotates to have driven second bevel gear and first bevel gear, make the drive lead screw rotate, thereby make the driving sleeve with screw-thread fit slide with it, it slides in the branch oil box to have driven the drive block, the oil shutoff cover that has driven removes, thereby make the opening that divides oil pipe and branch oil box intercommunication open or close, also can adjust the opening size of dividing oil pipe and branch oil box intercommunication, the proportion of the conduction oil that gets into in the branch heat pipe and the conduction oil that directly gets into in the second heating tube has been adjusted, play the effect of adjusting the heat proportion on the heat exchanger shared superheater, make things convenient for the rate of rise of temperature of operating personnel control superheater and heat exchanger.
The present invention in a preferred example may be further configured to: an oil inlet pipe is arranged on the oil distribution box, the oil inlet pipe penetrates through the inner side wall of the oil distribution box, which is close to the first heating pipe, and is fixed with the oil distribution box, one end of the oil inlet pipe is arranged outside the oil distribution box and is communicated with the first heating pipe, the other end of the oil inlet pipe penetrates through the driving block and is movably sealed with the driving block, and the driving block is movably sealed with the inner wall of the oil distribution box; one end of the oil inlet pipe arranged in the oil distribution box is arranged on one side of the driving block far away from the driving sleeve; and a check ring is fixed at one end of the oil inlet pipe, which is positioned in the oil distribution box.
Through adopting above-mentioned technical scheme, the conduction oil that derives by first heating pipe gets into in the branch oil box and is located the one side that the drive block kept away from the drive cover through advancing oil pipe, and the conduction oil orientation that derives by advancing oil pipe divides oil pipe or second heating pipe to flow, advance oil pipe and drive block movable seal and drive block and divide oil box inner wall movable seal in addition, thereby effectively prevented the conduction oil and spilt branch oil box owing to the setting of drive division, in addition, the setting of retaining ring is favorable to preventing the drive block and advancing oil pipe separation and lead to the conduction oil to reveal.
The present invention in a preferred example may be further configured to: the drive block with divide the oil box to pass sealed being fixed with between the inside wall of advancing oil pipe has elastic isolation cover, isolation lantern ring around the drive cover with advance oil pipe setting.
Through adopting above-mentioned technical scheme, the setting of isolated cover for the conduction oil that spills the drive block and divide oil box inner wall is difficult to spill through isolated cover and divides the oil box, prevents to scald operating personnel.
The present invention in a preferred example may be further configured to: be fixed with the first temperature sensor who is used for detecting the reactor internal temperature on the reactor, be fixed with the second temperature sensor who is used for detecting the super heater internal temperature on the super heater, be fixed with the controller on the mounting bracket, first temperature sensor with second temperature sensor all with the controller electricity is connected, the controller with driving motor electricity is connected.
Through adopting above-mentioned technical scheme, the temperature in reactor and the over heater has been detected respectively to first temperature sensor and second temperature sensor's setting, and when the temperature in over heater and the reactor was about to reach 200 degrees centigrade, the controller control driving motor started for divide oil pipe and branch oil box intercommunication, thereby make partial conduction oil through dividing the heat pipe, heated the heat exchanger, make the heating efficiency of over heater reduce, thereby the final operating temperature of control over heater and reactor reachs simultaneously.
In summary, the invention includes at least one of the following beneficial technical effects:
in the process, the electric heating pipe is electrified and heated to heat the heat conducting oil in the heat insulation box, then the pump body is started to increase the oil pressure in the heat insulation box, so that the heat conducting oil in the heat insulation box enters the first heating pipe, the heat carried by the heat conducting oil is radiated into the reactor, the temperature in the reactor is raised, then the heat conducting oil in the first heating pipe enters the second heating pipe, the temperature in the superheater is raised, finally the heat conducting oil in the second heating pipe returns to the heat insulation box through the pump body to form heat conducting circulation, the temperature in the reactor and the superheater is raised simultaneously, compared with the existing mode that the superheater and the reactor are independently heated, the arrangement of pipelines is reduced, the heat dissipation capacity is reduced, the energy is saved, in addition, the heat conducting oil firstly passes through the reactor and then passes through the superheater, and the setting that the final working temperature of the reactor is higher than the final working temperature of, the first heating pipe and the second heating pipe are respectively arranged in the reactor and the superheater, so that the heat loss during heating of the heat conduction oil is further reduced, and the energy is saved;
when hydrogen is prepared, a large amount of heat carried by gases such as hydrogen led out from a reactor enters an inner tank body and then enters a cooling tower, the temperature of a heat exchanger is increased, and methanol and desalted water before entering a superheater pass through a space between an outer tank body and the inner tank body of the heat exchanger, so that the methanol and the desalted water before entering the superheater are preheated, the heat carried by the gases such as hydrogen led out from the reactor is utilized, the heat loss and waste are reduced, and the effect of further saving energy is achieved;
when the temperature in the superheater is about to reach the final working temperature of the superheater, the oil separator separates the first heating pipe from the heat conduction oil in the second heating pipe, so that a part of the heat conduction oil passes through the heat conduction pipe, the temperature in the heat exchanger is increased, the condition that the heat exchanger is difficult to heat due to the fact that reactants are not led out in the reactor before hydrogen production work begins is prevented, the heat exchanger is preheated before the reactor is heated to the final working temperature, hydrogen production work can start immediately without additionally reheating the heat exchanger, and energy is saved.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a schematic view of the structure of the heat exchanger.
Fig. 3 is a schematic structural view of the heat transfer device.
Fig. 4 is a schematic structural view of the oil separator.
Fig. 5 is an enlarged schematic view at a in fig. 4.
Reference numerals: 1. a heat exchanger; 11. an outer tank body; 12. an inner tank body; 13. a feed inlet; 14. connecting columns; 15. a heat distributing pipe; 2. a superheater; 21. a second temperature sensor; 3. a reactor; 31. a first temperature sensor; 4. a heat conducting device; 41. a heat preservation box; 411. a heat-insulating layer; 42. a pump body; 43. heat conducting oil; 44. a first heating pipe; 45. a second heating pipe; 46. an electric heating tube; 5. an oil separator; 51. an oil distribution box; 511. an isolation sleeve; 52. an oil distributing pipe; 53. an oil pipe is communicated; 54. an oil inlet pipe; 541. a retainer ring; 55. an oil plugging sleeve; 551. a communication port; 56. a drive section; 561. a drive block; 562. a drive sleeve; 563. a mounting frame; 5631. a controller; 564. driving the screw rod; 565. a first bevel gear; 566. a drive motor; 567. a second bevel gear.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the production line for producing hydrogen from methanol disclosed by the invention comprises a heat exchanger 1, a superheater 2, a reactor 3, a cooling tower, a washing tower, a steam-water separator and a pressure swing adsorption gas separation device which are sequentially arranged and connected. Since the technical points of the present embodiment are the heat exchanger 1, the superheater 2 and the reactor 3, the prior art devices of other modules will not be described in detail.
Referring to fig. 1 and 2, the heat exchanger 1 includes an outer tank 11 and an inner tank 12, the outer tank 11 has a circular horizontal cross section and is hollow inside, the inner tank 12 has a circular horizontal cross section and has a smaller diameter than the outer tank 11, the inner tank 12 is disposed inside the outer tank 11, and the axis of the inner tank 12 coincides with the axis of the outer tank 11. A connecting column 14 is fixed between the outer wall of the inner tank body 12 and the inner wall of the outer tank body 11, the section of the connecting column 14 is circular, and two ends of the connecting column 14 are respectively connected with the inner tank body 12 and the outer tank body 11, so that the inner tank body 12 is fixed in the outer tank body 11. Superheater 2 and reactor 3 are current jar body shape superheater 2 and reactor 3 in the methyl alcohol hydrogen manufacturing line, and superheater 2 and the outer jar of body 11 top are passed through the pipeline intercommunication, are equipped with feed inlet 13 on the outer jar of body 11, and the opening of feed inlet 13 is circularly, and feed inlet 13 one end is fixed and with the outer jar of body 11 inside intercommunication of outer jar, and feed inlet 13 sets up in the outer jar of body 11 bottom. The top of the tank body of the superheater 2 is communicated with the bottom of the tank body of the reactor 3 through a pipeline, the top of the tank body of the reactor 3 penetrates through the outer tank body 11 through a pipeline and is communicated with the top of the inner tank body 12, and the bottom of the inner tank body 12 penetrates through the outer tank body 11 through a pipeline and is communicated with the cooling tower.
Referring to fig. 1 and 3, a heat conduction device 4 is disposed between the reactor 3 and the superheater 2, the heat conduction device 4 includes an insulation box 41, a pump 42, heat conduction oil 43, a first heating pipe 44, a second heating pipe 45, and an electric heating pipe 46, the insulation box 41 is rectangular box-shaped, the interior of the insulation box 41 is hollow, and an insulation layer 411 made of polyurethane foam is fixedly adhered to the outer wall of the insulation box 41. The pump body 42 is a high temperature resistant liquid pump, which is disposed on the heat insulation box 41 and fixed to the upper surface of the heat insulation box 41, and a liquid outlet of the pump body 42 is fixed to the upper surface of the heat insulation box 41 and communicated with the inside of the heat insulation box 41. The heat conducting oil 43 is disposed in the heat insulating box 41, and the heat conducting oil 43 fills the heat insulating box 41. The first heating pipe 44 is spiral and is arranged in the reactor 3, the spiral axis of the first heating pipe 44 coincides with the axis of the reactor 3, the lower end of the first heating pipe 44 penetrates out of the outer side wall of the bottom of the reactor 3 tank body and is fixed and communicated with the side wall of the heat insulation box 41, and the upper end of the first heating pipe 44 penetrates out of the outer side wall of the top of the reactor 3 tank body. The second heating pipe 45 is also spiral, and it sets up in over heater 2, and its axis coincides with over heater 2's axis, and the bottom lateral wall of the over heater 2 jar body is worn out to second heating pipe 45 lower extreme and is linked together with the inlet of the pump body 42, and jar external side wall of body top is worn out to second heating pipe 45 upper end, and is equipped with the oil separator 5 between the upper end of first heating pipe 44 upper end and second heating pipe 45. The electric heating tube 46 is an existing heating device, and is arranged in the heat insulation box 41 and fixed with the inner side wall of the heat insulation box 41, when the electric heating tube 46 is electrified and heated, the heat conducting oil 43 in the heat insulation box 41 is heated, then the pump body 42 is started, so that the oil pressure in the heat insulation box 41 is increased, so that the heat conducting oil 43 in the heat insulation box 41 enters the first heating tube 44, so that the heat carried by the heat conducting oil 43 is radiated into the reactor 3, so that the temperature in the reactor 3 is raised, then the heat conducting oil 43 in the first heating tube 44 enters the second heating tube 45, so that the temperature in the superheater 2 is raised, finally the heat conducting oil 43 in the second heating tube 45 returns to the heat insulation box 41 through the pump body 42, so as to form heat conducting circulation, and simultaneously raise the temperatures in the reactor 3 and the superheater 2, compared with the existing mode that the superheater 2 and the, thereby reduced the heat dissipation capacity, saved the energy, in addition, because the conduction oil 43 passes through reactor 3 earlier and passes through over heater 2 again, accord with the setting that 3 final operating temperature of reactor is higher than over heater 2's final operating temperature, and first heating pipe 44 and second heating pipe 45 set up respectively in reactor 3 and over heater 2, thermal scattering and disappearing when further having reduced the heating of conduction oil 43, saved the energy.
Referring to fig. 3 and 4, the oil separator 5 includes an oil distribution box 51, an oil distribution pipe 52, an oil passage pipe 53, an oil inlet pipe 54, an oil blocking sleeve 55, and a driving portion 56, and the oil distribution box 51 has a rectangular box-shaped structure and is horizontal in the longitudinal direction. The oil distribution pipe 52 is in a circular pipe shape, one end of the oil distribution pipe is fixed on the upper surface of the oil distribution box 51 and is communicated with the inside of the oil distribution box 51, and the other end of the oil distribution pipe extends to the heat exchanger 1. The oil pipe 53 is in a circular pipe shape, one end of the oil pipe is fixed with the side wall of one end of the oil distribution box 51 close to the superheater 2 and is communicated with the inside of the oil distribution box 51, and the other end of the oil pipe is fixed with and is communicated with the upper end of the second heating pipe 45. One end of the oil inlet pipe 54 is fixed and communicated with the upper end of the first heating pipe 44, the other end of the oil inlet pipe passes through the side wall of one end of the oil distribution box 51 far away from the oil through pipe 53 and is arranged in the oil distribution box 51, and the oil inlet pipe 54 is fixed with the oil distribution box 51. The oil inlet pipe 54 is sleeved with a retaining ring 541, the retaining ring 541 is annular, the inner wall of the retaining ring 541 is fixed with the outer wall of the oil inlet pipe 54, and the retaining ring 541 is arranged at the end part of the oil inlet pipe 54 located on the oil distribution box 51. Referring to fig. 2, a heat distributing pipe 15 is arranged in the heat exchanger 1, the heat distributing pipe 15 is spirally arranged around the inner tank 12, the axis of the heat distributing pipe 15 is overlapped with the axis of the inner tank 12, and the heat distributing pipe 15 is arranged between the outer side wall of the inner tank 12 and the inner side wall of the outer tank 11. The upper end of the heat distributing pipe 15 penetrates through the outer side wall of the top of the outer tank body 11 and is fixed and communicated with the end part of the oil distributing pipe 52 close to the heat exchanger 1, the lower end of the heat distributing pipe 15 penetrates through the outer side wall of the bottom of the outer tank body 11 and extends to the oil distributing box 51 and is fixed with the outer wall of the oil through pipe 53, and the heat distributing pipe 15 is communicated with the inside of the oil through pipe 53. The oil blocking sleeve 55 is a sleeve-shaped structure with a rectangular opening, and is arranged in the oil distribution box 51, and the opening of the oil blocking sleeve 55 faces the oil through pipe 53. The outer wall of oil blocking sleeve 55 is respectively with the inner wall laminating and the cooperation that slides of branch oil box 51 parallel to branch oil box 51 length direction, oil blocking sleeve 55 and branch oil box 51 inner wall activity are sealed, and oil blocking sleeve 55 is close to the lateral wall of oil inlet pipe 54 and has seted up intercommunication mouth 551, and the opening of intercommunication mouth 551 is circular for through getting into the conduction oil 43 that divides in the oil box 51, in addition, when initial condition, the upper surface cover of oil blocking sleeve 55 divides the opening of oil pipe 52 and branch oil box 51 intercommunication. When the pump body 42 and the electric heating tube 46 are started, the heat conducting oil 43 passes through the first heating tube 44, the oil inlet tube 54, the oil distribution box 51, the oil pipe 53, the second heating tube 45 and the pump body 42 from the heat preservation box 41 in sequence and finally returns to the heat preservation box 41 to form a heat conducting cycle.
Referring to fig. 4 and 5, the driving part 56 includes a driving block 561, a driving sleeve 562, a mounting bracket 563, a driving screw 564, a first bevel gear 565, a driving motor 566, and a second bevel gear 567. The driving block 561 is a rectangular block and is disposed in the oil distribution box 51, and the driving block 561 and the inner wall of the oil distribution box 51 parallel to the length direction of the oil distribution box 51 are in sliding fit and are movably sealed. One end of the oil inlet pipe 54 located in the oil distribution box 51 penetrates through the side wall of the driving block 561 close to and far away from the oil blocking sleeve 55, and the outer wall of the oil inlet pipe 54 is in sliding connection with the driving block 561 and is movably sealed. The driving block 561 is further provided with a connecting rod, the connecting rod is thin rod-shaped, the cross section of the connecting rod is circular, and two ends of the connecting rod are respectively fixed with the side walls of the driving block 561 and the oil blocking sleeve 55, which are close to each other, so that the oil blocking sleeve 55 is fixed with the driving block 561. The driving sleeve 562 is a square sleeve, the opening of which is round, and the length direction of the driving sleeve 562 is horizontal. The closed end of the driving sleeve 562 penetrates through the side wall of one end of the oil distribution box 51 far away from the oil through pipe 53 and is fixed with the side wall of the driving block 561 far away from the oil blocking sleeve 55, and the outer wall of the driving sleeve 562 is matched with the oil distribution box 51 in a sliding mode. The mounting bracket 563 is in an L-shaped plate shape, one end of the mounting bracket is horizontally arranged, the other end of the mounting bracket is vertically arranged downwards, the horizontal end of the mounting bracket 563 is fixed with the oil distribution box 51 through the outer side wall of the oil inlet pipe 54, and the upper surface of the mounting plate is flush with the upper surface of the oil distribution box 51. The axial direction of drive lead screw 564 is unanimous with the length direction of driving sleeve 562, and drive lead screw 564 one end is close to the lateral wall of branch oil box 51 with mounting bracket 563 and is rotated and is connected, and the other end penetrates in the opening of driving sleeve 562 and with driving sleeve 562 inner wall screw-thread fit. The first bevel gear 565 is sleeved on the driving screw 564 and fixed thereto, and the first bevel gear 565 is disposed at an end of the driving screw 564 close to the mounting bracket 563. The driving motor 566 is a servo motor, and is disposed on the mounting bracket 563 and fixed to the upper surface of the mounting bracket 563, an output shaft of the driving motor 566 passes through the upper surface of the mounting bracket 563, and the second bevel gear 567 is sleeved on the output shaft of the driving motor 566 and fixed thereto, and further, the second bevel gear 567 is engaged with the first bevel gear 565.
When the driving motor 566 is started, the output shaft thereof rotates to drive the second bevel gear 567 and the first bevel gear 565 to rotate, so that the driving screw 564 rotates, and the driving sleeve 562 in threaded fit with the driving screw slides to drive the driving block 561 to slide in the oil distribution box 51, and drive the oil blocking sleeve 55 to move, so that the opening of the oil distribution pipe 52 communicated with the oil distribution box 51 is opened, so that part of the heat transfer oil 43 entering the oil distribution box 51 from the first heating pipe 44 enters the oil distribution pipe 15 through the oil distribution pipe 52 and then enters the oil through pipe 53, and the other part of the heat transfer oil 43 directly enters the second heating pipe 45 through the communication port 551 and the oil through pipe 53, so that part of the heat originally used for heating the superheater 2 is used for increasing the heat of the heat exchanger 1, so that the final working temperatures of the superheater 2 and the reactor 3 reach at the same time, and the problem that the temperature in the superheater 2 reaches the reactor 3 in advance and is not, the effect of saving energy is achieved; the driving part 56 drives the oil blocking sleeve 55 to move, so that the size of an opening communicated with the oil distribution pipe 52 and the oil distribution box 51 can be adjusted, the proportion of heat conduction oil 43 entering the heat distribution pipe 15 and heat conduction oil 43 directly entering the second heating pipe 45 is adjusted, the effect of adjusting the proportion of heat quantity on the shared superheater 2 of the heat exchanger 1 is achieved, and the temperature rising rate of the superheater 2 and the heat exchanger 1 can be controlled by an operator conveniently. An isolation sleeve 511 is further arranged in the oil distribution box 51, the isolation sleeve 511 is of a sleeve-shaped structure with a rectangular opening, an opening at one end of the isolation sleeve 511 is fixed with the side wall of the driving block 561, which is close to the driving sleeve 562, an opening at the other end of the isolation sleeve 511 is fixed with the oil distribution box 51 through the inner side wall of the oil inlet pipe 54, and the isolation sleeve 511 is arranged around the driving sleeve 562 and the oil inlet pipe 54 to prevent the heat conduction oil 43 from leaking.
Referring to fig. 3, a first temperature sensor 31 is fixed on the outer sidewall of the reactor 3 for detecting the temperature inside the reactor 3, and a second temperature sensor 21 is fixed on the outer sidewall of the superheater 2 for detecting the temperature inside the superheater 2, as shown in fig. 4 and 5, a controller 5631 is fixed on the upper surface of the mounting bracket 563, the first temperature sensor 31 and the second temperature sensor 21 are both electrically connected to the controller 5631, and the controller 5631 is electrically connected to the driving motor 566, when the temperature inside the superheater 2 and the reactor 3 is about to reach 200 degrees celsius, the first temperature sensor 31 and the second temperature sensor 21 transmit the temperature signals inside the reactor 3 and the superheater 2 to the controller 5631, the controller 5631 controls the driving motor 566 to be started, so that the oil distribution pipe 52 is communicated with the oil distribution box 51, so that the portion 43 passes through the oil distribution pipe 15 to heat the heat exchanger 1, the heating efficiency of the superheater 2 is reduced, the final working temperature of the superheater 2 and the final working temperature of the reactor 3 are controlled to reach at the same time, the temperature in the superheater 2 is prevented from reaching the reactor 3 in advance, the temperature is prevented from failing to reach the empty temperature and being wasted, and the effect of saving energy is achieved.
The implementation principle of the embodiment is as follows: when hydrogen is produced, methanol and desalted water are mixed and enter a heat exchanger 1 for preheating through a feeding hole 13, then enter a superheater 2 for heating to form steam and then enter a reactor 3, the methanol and the steam react under the action of a catalyst and high temperature of the reactor 3 to generate hydrogen, carbon dioxide and a small amount of carbon monoxide, methanol and water, then reactants enter a cooling tower, the reactants enter a washing tower after being cooled and condensed, the washed gas is separated and purified through a steam-water separator, then the gas is sent to a pressure swing adsorption gas separation device through the steam-water separator, and impurities except the hydrogen are adsorbed, so that the product hydrogen can be obtained; in the above process, the electric heating tube 46 is electrically heated to heat the heat conducting oil 43 in the heat insulation box 41, then the pump body 42 is started to increase the oil pressure in the heat insulation box 41, so that the heat conducting oil 43 in the heat insulation box 41 enters the first heating tube 44, so that the heat carried by the heat conducting oil 43 is radiated into the reactor 3, so that the temperature in the reactor 3 is raised, then the heat conducting oil 43 in the first heating tube 44 enters the second heating tube 45, so that the temperature in the superheater 2 is raised, finally the heat conducting oil 43 in the second heating tube 45 returns to the heat insulation box 41 through the pump body 42 to form a heat conducting cycle, and simultaneously the temperatures in the reactor 3 and the superheater 2 are raised, compared with the existing mode that the superheater 2 and the reactor 3 are independently heated, the arrangement of pipelines is reduced, so that the heat dissipation capacity is reduced, the energy is saved, in addition, because the heat conducting oil 43 firstly passes through the superheater 2, the final working temperature of the reactor 3 is higher than the final working temperature of the superheater 2, and the first heating pipe 44 and the second heating pipe 45 are respectively arranged in the reactor 3 and the superheater 2, so that the heat loss during heating of the heat conduction oil 43 is further reduced, and the energy is saved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A production line for preparing hydrogen from methanol is characterized in that: the device comprises a heat exchanger (1), a superheater (2), a reactor (3), a cooling tower, a washing tower, a steam-water separator and a pressure swing adsorption gas separation device which are sequentially arranged and connected, wherein the heat exchanger (1) is arranged between the reactor (3) and the cooling tower, and the reactor (3) is communicated with the cooling tower through the heat exchanger (1); a heat conduction device (4) is arranged between the reactor (3) and the superheater (2), the heat conduction device (4) comprises an insulation box (41), a pump body (42) fixed on the insulation box (41), heat conduction oil (43) arranged in the insulation box (41), a first heating pipe (44) fixed in the reactor (3), a second heating pipe (45) fixed in the superheater (2) and an electric heating pipe (46) fixed in the insulation box (41), and the pump body (42) is communicated with the interior of the insulation box (41); the first heating pipe (44) is spiral, and the spiral axis of the first heating pipe (44) is superposed with the tank body axis of the reactor (3); the second heating pipe (45) is spiral, and the spiral axis of the second heating pipe (45) is superposed with the tank axis of the superheater (2); one end of the first heating pipe (44) penetrates out of the reactor (3) and is communicated with the inside of the heat insulation box (41), the other end of the first heating pipe (44) is communicated with one end of the second heating pipe (45), and the second heating pipe (45) is positioned at the communicated end of the first heating pipe (44) and is communicated with the pump body (42); the heat conduction oil (43) in the heat insulation box (41) returns to the heat insulation box (41) through the pump body (42) from the first heating pipe (44) and the second heating pipe (45) to form heat conduction circulation.
2. A production line for hydrogen production from methanol according to claim 1, characterized in that: the heat exchanger (1) comprises an outer tank body (11) and an inner tank body (12) fixed in the outer tank body (11), and two ends of the inner tank body (12) are respectively communicated with the reactor (3) and the cooling tower; the outer tank body (11) is fixedly provided with a feed inlet (13) communicated with the interior of the outer tank body (11), and the interior of the outer tank body (11) is communicated with the superheater (2).
3. A production line for hydrogen production from methanol according to claim 2, characterized in that: an oil separator (5) for separating heat conduction oil (43) flowing from the first heating pipe (44) to the second heating pipe (45) is arranged between the superheater (2) and the reactor (3), the first heating pipe (44) is communicated with the second heating pipe (45) through the oil separator (5), and a heat separation pipe (15) arranged between the outer tank body (11) and the inner tank body (12) is fixed in the heat exchanger (1); one end of the heat distribution pipe (15) is communicated with the oil distributor (5), and the other end of the heat distribution pipe is connected to a communication pipeline between the second heating pipe (45) and the oil distributor (5).
4. A production line for hydrogen production from methanol according to claim 3, characterized in that: the oil separator (5) comprises an oil distribution box (51) with two ends respectively communicated with the second heating pipe (45) and the first heating pipe (44), an oil distribution pipe (52) communicated with the oil distribution box (51) is arranged on the oil distribution box (51), and one end, far away from the oil distribution box (51), of the oil distribution pipe (52) is communicated with the oil distribution pipe (15); an oil blocking sleeve (55) which is matched with the inner wall of the oil distribution box (51) in a sliding manner and closes the opening of the oil distribution pipe (52) and a driving part (56) for driving the oil blocking sleeve (55) to move are arranged in the oil distribution box (51); the oil blocking sleeve (55) is in fit with and sliding fit with the inner wall of the oil distribution pipe (52) communicated with the oil distribution box (51), and a communication opening (551) penetrating through the oil blocking sleeve (55) is formed in the side wall, perpendicular to the sliding direction of the oil blocking sleeve (55), of the oil blocking sleeve (55).
5. A production line for hydrogen production from methanol according to claim 4, characterized in that: the driving part (56) comprises a driving block (561) arranged on the oil distribution box (51), a driving sleeve (562) penetrating through the oil distribution box (51) and communicated with the inner side wall of the first heating pipe (44), a mounting frame (563) fixed outside the oil distribution box (51), a driving screw rod (564) rotatably connected to the mounting frame (563), a first bevel gear (565) sleeved on the driving screw rod (564) and fixed with the driving screw rod, a driving motor (566) fixed on the mounting frame (563), and a second bevel gear (567) fixed on an output shaft of the driving motor (566), wherein the first bevel gear (565) is meshed with the first bevel gear (565); the driving sleeve (562) is matched with the oil distribution box (51) in a sliding mode, and the sliding direction of the driving sleeve (562) is consistent with the sliding direction of the driving block (561) and the sliding direction of the oil blocking sleeve (55); the opening end of the driving sleeve (562) is arranged outside the oil distribution box (51), and the other end of the driving sleeve (562) is fixed with the side wall of the driving block (561) far away from the oil blocking sleeve (55); one end of the driving screw rod (564) is connected with the mounting frame (563), and the other end of the driving screw rod penetrates into the opening of the driving sleeve (562) and is in threaded fit with the opening; a connecting rod is fixed between the oil blocking sleeve (55) and the driving block (561).
6. A production line for hydrogen production from methanol according to claim 5, characterized in that: an oil inlet pipe (54) is arranged on the oil distribution box (51), the oil inlet pipe (54) penetrates through the inner side wall, close to the first heating pipe (44), of the oil distribution box (51) and is fixed with the oil distribution box (51), one end of the oil inlet pipe (54) is arranged outside the oil distribution box (51) and is communicated with the first heating pipe (44), the other end of the oil inlet pipe (54) penetrates through the driving block (561) and is movably sealed with the driving block (561), and the driving block (561) is movably sealed with the inner wall of the oil distribution box (51); one end of the oil inlet pipe (54) arranged in the oil distribution box (51) is arranged on one side, away from the driving sleeve (562), of the driving block (561); and a retainer ring (541) is fixed at one end of the oil inlet pipe (54) positioned in the oil distribution box (51).
7. A production line for hydrogen production from methanol according to claim 6, characterized in that: an elastic isolation sleeve (511) is hermetically fixed between the driving block (561) and the oil distribution box (51) through the inner side wall of the oil inlet pipe (54), and the isolation sleeve (511) surrounds the driving sleeve (562) and the oil inlet pipe (54).
8. A production line for hydrogen production from methanol according to claim 6, characterized in that: be fixed with first temperature sensor (31) that is used for detecting reactor (3) internal temperature on reactor (3), be fixed with second temperature sensor (21) that are used for detecting superheater (2) internal temperature on superheater (2), be fixed with controller (5631) on mounting bracket (563), first temperature sensor (31) with second temperature sensor (21) all with controller (5631) electricity is connected, controller (5631) with driving motor (566) electricity is connected.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112573481A (en) * | 2020-12-28 | 2021-03-30 | 常州市蓝博净化科技有限公司 | Cascaded slow alternating temperature methyl alcohol hydrogen production line |
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