Cooling device for methanol-to-hydrogen thermal power generator

Abstract

The utility model discloses a thermal power generator cooling device for methanol hydrogen production, which comprises a shell, a reactor, a separator, a cooler and a fan, the shell is provided with a first inlet and a first outlet, the fan is arranged on the first inlet, the reactor is positioned on the side edge of the fan, the cooler is arranged on the first outlet, and the separator is positioned on the side edge of the fan. The separator is arranged between the reactor and the cooler, heat generated when the thermal power generator works is subjected to a methanol cracking reaction in the reactor by utilizing the fan, the reacted mixed gas, namely hydrogen and carbon monoxide, is separated in the separator, the carbon monoxide can be guided into a thermal power generation combustion boiler, and the thermal power generation combustion boiler is used for generating the methanol. Hydrogen enters the cooler to be cooled and discharged, the density of the hydrogen is much smaller than that of air, the heat conductivity coefficient of the hydrogen is much larger than that of the air, the hydrogen flows in the thermal power generator to cool the interior of the thermal power generator, and the problem that the operating efficiency and safety are affected due to the fact that the temperature of the thermal power generator adopting hydrogen for power generation is too high is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling devices, and in particular relates to a cooling device for a thermal generator used for producing hydrogen from methanol. Background Art

[0002] Methanol can be used as a renewable energy source, and methanol is a relatively clean form of energy. It can be used to produce hydrogen, which can be used as fuel for thermal power generators. Compared with coal or natural gas, hydrogen has higher combustion efficiency and can improve the energy efficiency of generators. Its combustion produces less carbon dioxide emissions, which is more environmentally friendly than traditional coal or oil-fired power generators.

[0003] When a thermal generator burns methanol to produce fuel gas, it generates heat during operation, causing the temperature to rise significantly. To protect the various components within the generator (such as the turbine and combustion chamber) from damage due to overheating, maintain efficient and safe operation, and improve energy conversion efficiency, a device is needed to reduce the generator's temperature. Utility Model Content

[0004] In order to solve the problem that the operating efficiency and safety of a thermal power generator using hydrogen power generation is affected by excessively high temperature, the utility model provides a thermal power generator cooling device for producing hydrogen from methanol.

[0005] The technical solution of the utility model is:

[0006] The utility model discloses a cooling device for a thermal power generator for producing hydrogen from methanol, comprising a shell, a reactor, a separator, a cooler and a fan. The shell is provided with a first inlet and a first outlet, the fan is arranged on the first inlet, and the reactor is located on the side of the fan, the cooler is arranged at the first outlet, and the separator is arranged between the reactor and the cooler.

[0007] Furthermore, the reactor includes a raw material inlet, a heat source inlet, a catalyst bed and a gas outlet, the heat source inlet coincides with the first inlet, the catalyst bed is located on one side of the heat source inlet, the raw material inlet is located between the catalyst bed and the heat source inlet, and the gas outlet is located at the end of the reactor.

[0008] Furthermore, the separator includes a mixed gas inlet, an adsorption layer, a first hydrogen outlet and a carbon monoxide outlet, the mixed gas inlet is connected to the gas outlet of the reactor, the adsorption layer is located in the middle of the separator, and the first hydrogen outlet and the carbon monoxide outlet are located at the end of the separator.

[0009] Furthermore, the cooler includes a cavity shell, a plurality of heat exchange tubes, a coolant, a coolant inlet and a coolant outlet provided at both ends of the heat exchange tubes, a hydrogen inlet, and a second hydrogen outlet. The heat exchange tubes are provided in the cavity shell, the coolant is provided in the heat exchange tubes, and the hydrogen inlet and the second hydrogen outlet are provided on the cavity shell.

[0010] Furthermore, a booster pump is provided at the end of the reactor and the head end of the separator.

[0011] Furthermore, pipelines are provided between the reactor, the separator and the cooler.

[0012] The beneficial effects of the present invention are:

[0013] A cooling device for a thermal generator used to produce hydrogen from methanol is designed. A fan is used to dissipate the heat generated by the thermal generator during operation to cause a methanol cracking reaction in a reactor. The resulting mixed gas, hydrogen and carbon monoxide, is separated in a separator. The carbon monoxide can be introduced into a thermal power generation boiler for reuse, while the hydrogen enters a cooler for cooling and discharge. Hydrogen has a much lower density and a much higher thermal conductivity than air, and flows through the thermal generator to cool it down. This solves the problem of excessively high temperatures affecting the operating efficiency and safety of thermal generators using hydrogen for power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a thermal generator cooling device for methanol-to-hydrogen production according to the present invention;

[0015] Figure 2 This is a schematic diagram of the internal connection structure of a thermal generator cooling device for methanol-to-hydrogen production according to the present invention;

[0016] Figure 3 This is a structural schematic diagram of a reactor of a thermal generator cooling device for methanol-to-hydrogen production according to the present invention;

[0017] Figure 4 This is a structural schematic diagram of a separator of a thermal generator cooling device for methanol-to-hydrogen production according to the present invention;

[0018] Figure 5 This is a structural schematic diagram of a cooler of a thermal generator cooling device for methanol-to-hydrogen production according to the present invention;

[0019] Figure numerals: 1. Shell, 11. First inlet, 12. First outlet, 2. Reactor, 21. Raw material inlet, 22. Heat source inlet, 23. Catalyst bed, 24. Gas outlet, 3. Separator, 31. Mixed gas inlet, 32. Adsorption layer, 33. First hydrogen outlet, 34. Carbon monoxide outlet, 4. Cooler, 41. Chamber shell, 42. Heat exchange tube, 43. Coolant inlet, 44. Coolant outlet, 45. Hydrogen inlet, 46. Second hydrogen outlet, 5. Fan, 6. Booster pump, 7. Pipeline. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when a component is referred to as being "installed on", "provided on", "covered on", "sleeved on", or "locked on" another component, it can be directly on the other component or indirectly on the other component.

[0022] It should be understood that, in the description of the present invention, “several” means two or more than two, unless otherwise clearly and specifically defined.

[0023] In addition, the terms "inside", "upper", "between", "both sides", "one side", "top", "bottom", "side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0024] It should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature designated as "first," "second," "third," etc. may explicitly or implicitly include one or more of such features.

[0025] It should be noted that the term "and / or" in this document merely describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. A and B can each be singular or plural.

[0026] Please refer to Figure 1-Figure 5The utility model provides a cooling device for a thermal power generator for producing hydrogen from methanol, comprising a shell 1, a reactor 2, a separator 3, a cooler 4 and a fan 5. The reactor 2 is used to use the heat source generated by the generator to perform a methanol cracking reaction to produce a mixed gas of hydrogen and carbon monoxide; the separator 3 is used to separate the mixed gas of hydrogen and carbon monoxide into separate hydrogen and carbon monoxide; the cooler 4 is used to cool the separated hydrogen, and the fan 5 is used to absorb the hot air in the generator into the reactor 2. A first inlet 11 and a first outlet 12 are provided on the shell 1. The first inlet 11 is the hot air inlet, and the first outlet 12 is the cooled hydrogen outlet. The fan 5 is provided on the first inlet 11, and the reactor 2 is located on the side of the fan 5. The cooler 4 is provided at the first outlet 12, and the separator 3 is provided between the reactor 2 and the cooler 4.

[0027] Furthermore, the reactor 2 includes a raw material inlet 21, a heat source inlet 22, a catalyst bed 23 and a gas outlet 24, the raw material inlet 21 is a methanol liquid inlet, the heat source inlet 22 coincides with the first inlet 11, the catalyst bed 23 is located on one side of the heat source inlet 22, or the catalyst bed 23 is on the inner wall of the reactor 2, the raw material inlet 21 is located between the catalyst bed 23 and the heat source inlet 22, and the gas outlet 24 is located at the end of the reactor 2. Under the promotion of the catalyst bed 23, methanol is cracked into a mixed gas of hydrogen and carbon monoxide.

[0028] Furthermore, the separator 3 includes a mixed gas inlet 31, an adsorption layer 32, a first hydrogen outlet 33 and a carbon monoxide outlet 34. The mixed gas inlet 31 is a hydrogen and carbon monoxide mixed gas inlet 31. The mixed gas inlet 31 is connected to the gas outlet 24 of the reactor 2. Specifically, the mixed gas inlet 31 and the gas outlet 24 of the reactor 2 are connected through a pipeline 7. The adsorption layer 32 is located in the middle of the separator 3. The adsorption layer 32 is filled with a layered structure of an adsorbent (such as activated carbon). The carbon monoxide gas adsorbed on the adsorbent can be desorbed by reducing the pressure to cause the CO molecules on the adsorbent to desorb and discharge the separator 3 in the form of gas. The first hydrogen outlet 33 and the carbon monoxide outlet 34 are located at the end of the separator 3.

[0029] Preferably, the adsorption layer 32 may also be replaced by a porous membrane or a selective permeation membrane. By using membrane technology, CO and H2 can be separated according to the difference in molecular size and affinity.

[0030] Furthermore, the cooler 4 includes a cavity shell 41, a plurality of heat exchange tubes 42, a coolant (not shown), a coolant inlet 43 and a coolant outlet 44 provided at both ends of the heat exchange tube 42, a hydrogen inlet 45, and a second hydrogen outlet 46. The heat exchange tube 42 is provided in the cavity shell 41, the coolant is provided in the heat exchange tube 42, and the hydrogen inlet 45 and the second hydrogen outlet 46 are provided on the cavity shell 41. That is, the hydrogen with a relatively high temperature passes through the built-in coolant, which can be water or a chemical solution (such as an organic acid or a silicate), to cool the hydrogen, and then discharge it for cooling the components in the thermal power generator.

[0031] Furthermore, a booster pump 6 is provided between the end of the reactor 2 and the head end of the separator 3 to promote or accelerate the hydrogen and carbon monoxide mixed gas to enter the separator 3 for separation by means of boosting pressure.

[0032] Furthermore, a pipeline 7 is provided between the reactor 2 , the separator 3 and the cooler 4 .

[0033] In summary, the heat generated by the thermal generator during operation is used by the fan 5 to carry out a methanol cracking reaction in the reactor 2. The mixed gas after the reaction, namely hydrogen and carbon monoxide, is separated in the separator 3. The carbon monoxide can be introduced into the thermal power generation combustion boiler for reuse, and the hydrogen enters the cooler 4 for cooling and discharge. Hydrogen has a much lower density and a much higher thermal conductivity than air. It flows in the thermal generator to cool it down, thereby solving the problem of excessive temperature affecting the operating efficiency and safety of the thermal generator using hydrogen for power generation.

[0034] Specifically, the cooling device is arranged at both ends of the generator, generating hydrogen that circulates inside the generator, filling the generator casing with hydrogen, and the hydrogen enters the stator and rotor to take away heat.

[0035] A temperature sensor and an electronic valve may be provided in the reactor 2 to monitor the temperature in the reactor 2. When the temperature reaches a preset temperature, the electronic valve is controlled to open to discharge hydrogen and carbon monoxide gases.

[0036] The above-described embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A cooling device for a thermal generator for producing hydrogen from methanol, characterized in that: The invention comprises a shell (1), a reactor (2), a separator (3), a cooler (4) and a fan (5); the shell (1) is provided with a first inlet (11) and a first outlet (12); the fan (5) is provided on the first inlet (11), and the reactor (2) is located on the side of the fan (5); the cooler (4) is provided at the first outlet (12); the separator (3) is provided between the reactor (2) and the cooler (4); the cooler (4) comprises a chamber shell (41), a plurality of heat exchange tubes (42), a coolant, a coolant inlet (43) and a coolant outlet (44) provided at both ends of the heat exchange tubes (42), a hydrogen inlet (45), and a second hydrogen outlet (46); the heat exchange tubes (42) are provided in the chamber shell (41), the coolant is provided in the heat exchange tubes (42), and the hydrogen inlet (45) and the second hydrogen outlet (46) are provided on the chamber shell (41).

2. The cooling device for a thermal generator for producing hydrogen from methanol according to claim 1, characterized in that: The reactor (2) comprises a raw material inlet (21), a heat source inlet (22), a catalyst bed (23) and a gas outlet (24), wherein the heat source inlet (22) coincides with the first inlet (11), the catalyst bed (23) is located on one side of the heat source inlet (22), the raw material inlet (21) is located between the catalyst bed (23) and the heat source inlet (22), and the gas outlet (24) is located at the end of the reactor (2).

3. The cooling device for a thermal generator for producing hydrogen from methanol according to claim 2, characterized in that: The separator (3) comprises a mixed gas inlet (31), an adsorption layer (32), a first hydrogen outlet (33) and a carbon monoxide outlet (34); the mixed gas inlet (31) is connected to the gas outlet (24) of the reactor (2); the adsorption layer (32) is located in the middle of the separator (3); and the first hydrogen outlet (33) and the carbon monoxide outlet (34) are located at the ends of the separator (3).

4. The cooling device for a thermal generator for producing hydrogen from methanol according to claim 3, characterized in that: A booster pump (6) is provided at the end of the reactor (2) and the head end of the separator (3).

5. The cooling device for a thermal generator for producing hydrogen from methanol according to claim 4, characterized in that: A pipeline (7) is provided between the reactor (2), the separator (3) and the cooler (4).

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