Mine water evaporation hydrogen production device driven by SOEC waste heat
The mine water evaporation hydrogen production unit driven by SOEC waste heat utilizes triple-effect evaporation and high-temperature waste heat to heat the feed, combined with photovoltaic power generation panels to provide energy, solving the problem of hydrogen production by water electrolysis in areas with insufficient water resources, and realizing the preparation of green hydrogen and efficient use of energy.
Patent Information
- Application Number
- CN202422018914.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Existing water electrolysis hydrogen production technology faces challenges in areas with insufficient water resources, including high water availability and high hydrogen production costs.
The mine water evaporation hydrogen production unit, driven by SOEC waste heat, achieves the evaporation and hydrogen production process of mine water by triple-effect evaporation and using the high-temperature waste heat of SOEC water electrolysis products to heat the feed. Combined with photovoltaic power generation panels to provide clean energy, it realizes the evaporation of mine water and hydrogen production.
This method solves the problem of water source for hydrogen production through water electrolysis in water-scarce areas, reduces the cost of hydrogen production, and produces green hydrogen that is environmentally friendly, making full use of energy.
Smart Images
Figure CN223607382U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrolytic water hydrogen production field, concretely relates to a kind of mine water evaporation hydrogen production device using solid oxide electrolytic cell (SOEC) waste heat. BACKGROUND
[0002] Electrolytic water hydrogen production technology gradually becomes a field that is much concerned, and existing electrolytic water hydrogen production technology includes high-temperature solid oxide electrolytic water hydrogen production, alkaline electrolytic water hydrogen production, proton exchange membrane electrolytic water hydrogen production etc..Although SOEC hydrogen production is the highest electrolytic efficiency method so far, there is still the source of water resources, hydrogen production cost is too high, and the problem of power supply. INVENTION CONTENTS
[0003] In order to solve the problem of insufficient water resources in the area of electrolytic water source, the purpose of the utility model is to provide a kind of mine water evaporation hydrogen production device driven by SOEC waste heat.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of mine water evaporation hydrogen production device driven by SOEC waste heat, including first evaporator (1), second evaporator (2), third evaporator (3), heat exchanger I (4), heat exchanger II (5), water vapor mixer (6), water vapor shell-and-tube heat exchanger (7), water vapor heat exchanger (8), hydrogen gas shell-and-tube heat exchanger (9), hydrogen gas heat exchanger I (10), mixer I (11), SOEC electrolytic cell (12), air shell-and-tube heat exchanger (13), air heat exchanger (14), separator (15), mixer II (16), hydrogen gas heat exchanger II (17), hydrogen gas compressor (18), gas storage tank (19), photovoltaic power generation panel (20).
[0005] The mine water is evaporated by first evaporator (1), second evaporator (2) and third evaporator (3), the cold side inlet of water vapor shell-and-tube heat exchanger (7) is connected with water vapor mixer (6) outlet through pipeline, water B enters water vapor shell-and-tube heat exchanger (7) through pipeline, mixer I (11) is connected with SOEC electrolytic cell (12) feed inlet through pipeline, and photovoltaic power generation panel (20) supplies power for SOEC electrolytic cell (12) through cable.
[0006] The steam outlet of the first effect evaporator (1) is connected with the inlet of the heat exchanger I (4) through a pipeline, and the steam outlet of the second effect evaporator (2) is connected with the inlet of the heat exchanger II (5) through a pipeline; the first inlet of the water vapor mixer (6) is connected with the condensate outlet of the heat exchanger I (4) through a pipeline, and the second inlet is connected with the condensate outlet of the heat exchanger II (5) through a pipeline; the mine water A is connected with the first evaporator (1) through a pipeline, the evaporated mine water A enters the second evaporator (2) through a pipeline, the mine water A after the second evaporation enters the third evaporator (3) through a pipeline, the concentrated solution A after the third evaporator (3) enters the concentrated solution pool through a pipeline, the water vapor B evaporated by the evaporator enters the heat exchanger (4) to be condensed into water B, the water vapor B enters the heat exchanger (5) to be condensed into water B, the water B enters the water vapor mixer (6) to be mixed, the water vapor B and hydrogen C enter the mixer I (11) to be mixed and then enter the SOEC electrolytic tank (12), the photovoltaic power generation panel 20 provides the required electrolysis power for the SOEC electrolytic tank (12) through a cable, the hydrogen C enters the water vapor shell heat exchanger (7) to be heat-exchanged into low-temperature hydrogen C, then the hydrogen C enters the hydrogen heat exchanger II (17) to be heat-exchanged into lower-temperature hydrogen C, the mixed gas D of O2 and air enters the air shell heat exchanger (13) to be heat-exchanged into low-temperature O2 and air mixed gas E, and the mixed gas E6 enters the hydrogen shell heat exchanger (9).
[0007] Compared with the existing SOEC water electrolysis hydrogen production system, the utility model has the following advantages.
[0008] 1. A mine water evaporation hydrogen production device driven by SOEC waste heat, which introduces mine water to solve the water source problem of electrolysis water in water resource deficient areas, the mine water A enters the first evaporator (1) through a pipeline, the evaporated mine water A enters the second evaporator (2) through a pipeline, the mine water A after the second evaporation enters the third evaporator (3) through a pipeline, the concentrated solution A after the third evaporator (3) enters the concentrated solution pool through a pipeline, the water B evaporated by the evaporator enters the heat exchanger I (4) to be condensed into distilled water B, the water vapor B enters the heat exchanger II (5) to be condensed into water B, the heat output end of the heat exchanger I (4) is connected with the heating chamber of the second effect evaporator (2) through a transmission pipeline, and the heat output end of the heat exchanger II (5) is connected with the heating chamber of the third effect evaporator (3) through a transmission pipeline; the heat exchanger (4) provides energy for the second evaporator, and the heat exchanger II (5) provides energy for the third evaporator; through three times of evaporation of mine water and the heat exchange of distilled water vapor to provide energy, the cost of external heating is saved, and the energy is fully utilized.
[0009] 2. A mine water evaporation hydrogen production device driven by SOEC waste heat, which utilizes the high-temperature waste heat of the product of SOEC water electrolysis to heat the feed. The oxygen and hydrogen generated by the electrolysis reaction of the SOEC electrolytic cell (12) are separated by the separator (15), the separated oxygen E is purged by air D, the high-temperature air and oxygen mixed gas D produced is connected by a pipeline to the hot side inlet of the shell-and-tube heat exchanger (13) to heat the entering air D, and then the hydrogen C is connected by a pipeline to the hot side inlet of the shell-and-tube heat exchanger (9) to heat the feed, thereby fully utilizing the waste heat of the product, reducing the cost of hydrogen production, and being green and environmentally friendly.
[0010] 3. A mine water evaporation hydrogen production device driven by SOEC waste heat, which utilizes the high-temperature waste heat of the product of SOEC water electrolysis to heat water and provide energy for the mine water evaporator, thereby solving the problem of energy source for mine water evaporation and fully utilizing the heat of the produced hydrogen.
[0011] 4. A mine water evaporation hydrogen production device driven by SOEC waste heat, wherein the photovoltaic power generation panel (20) utilizes solar energy clean energy to provide energy for the system during the water electrolysis reaction, so that the entire hydrogen production process is green and the produced hydrogen is green hydrogen, which is green and environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 The system diagram of the mine water evaporation hydrogen production device driven by SOEC waste heat.
[0013] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0014] In the description of the utility model, it is necessary to explain that the terms "top", "bottom", "one side", "the other side", "front", "back", "intermediate position", "interior", "top end", "bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0015] As Figure 1 It is a kind of mine water evaporation hydrogen production device driven by SOEC waste heat, including first evaporator (1), second evaporator (2), third evaporator (3), heat exchanger I (4), heat exchanger II (5), water vapor mixer (6), water vapor shell-and-tube heat exchanger (7), water vapor heat exchanger (8), hydrogen shell-and-tube heat exchanger (9), hydrogen heat exchanger I (10), mixer I (11), SOEC electrolytic cell (12), air shell-and-tube heat exchanger (13), air heat exchanger (14), separator (15), mixer II (16), hydrogen heat exchanger II (17), hydrogen compressor (18), gas tank (19), photovoltaic power generation panel (20).
[0016] The mine water enters first evaporator (1), second evaporator (2) and third evaporator (3) in sequence through pipeline for three-effect evaporation, water B enters water vapor shell-and-tube heat exchanger (7) cold side inlet through pipeline, the outlet of mixer I (11) is connected with SOEC electrolytic cell (12) through pipeline, and photovoltaic power generation panel (20) supplies power to SOEC electrolytic cell (12) through cable.
[0017] The mine water A enters the first evaporator (1) through the pipeline, the evaporated mine water A enters the second evaporator (2) through the pipeline, the mine water A after the second evaporation enters the third evaporator (3) through the pipeline, the concentrated solution A after the third evaporator (3) is complete enters the concentrated solution pool, the water vapor B evaporated by the evaporator is condensed into water B through the heat exchanger I (4), the water vapor B is condensed into water B through the heat exchanger II (5), the water B is mixed through the pipeline into the water vapor mixer (6), the water vapor B and hydrogen C are mixed through the mixer I (11) and then enter the SOEC electrolytic cell (12), the photovoltaic power generation panel (20) provides the required electrolysis power for the SOEC electrolytic cell (12), the hydrogen C enters the water vapor shell heat exchanger (7) through the pipeline and is heat exchanged into lower temperature hydrogen C, the hydrogen C enters the hydrogen heat exchanger II (17) through the pipeline and is heat exchanged into lower temperature hydrogen C, the mixed gas D of air and oxygen enters the hot side inlet of the air shell heat exchanger (13) through the pipeline and is heat exchanged into lower temperature mixed gas E, the mixed gas D of air and oxygen enters the hot side inlet of the hydrogen shell heat exchanger (9) through the pipeline.
[0018] As shown in the drawing 1, the outlet of the first evaporator is connected with the inlet of the second evaporator through the pipeline, the outlet of the second evaporator is connected with the inlet of the third evaporator through the pipeline, and the connection mode is consistent with the pipeline in the drawing 1.
[0019] The SOEC electrolytic cell is consistent with the structure shown in the drawing 1, the outline of the electrolytic cell and the relative position relationship with the surrounding components are consistent with the schematic shown in the drawing 1, the input end corresponds to the interface of the mixer outlet pipeline marked as (11) in the drawing, the output end is connected with the separator inlet pipeline marked as (15) in the drawing through the outlet pipeline, and the photovoltaic power generation panel marked as (20) in the drawing provides the power supply connection electrolysis device DETAILED DESCRIPTION
[0020] The utility model discloses a device working process: the mine water A enters first evaporimeter (1) through pipeline, and the mine water A after evaporating enters second evaporimeter (2) through pipeline, and the mine water A after evaporating second time enters third evaporimeter (3) through pipeline, and the concentrated solution A after coming out from third evaporimeter (3) enters concentrated solution pool through pipeline;The water vapor B that evaporimeter evaporates is condensed as water B through heat exchanger I (4), and the water vapor B enters heat exchanger II (5) through pipeline and is condensed as water B, and heat exchanger I (4) provides energy for second evaporimeter (2), and heat exchanger II (5) provides energy for third evaporimeter;Water B mixes through pipeline and enters water vapor mixer (6), and the water after mixing is heated as higher temperature water vapor B through the cold side entrance of water vapor shell type heat exchanger (7), and the water vapor B is heated to the water vapor B of reaction temperature through the cold side entrance of water vapor heat exchanger (8);Hydrogen C is heated as higher temperature hydrogen C through the cold side entrance of hydrogen shell type heat exchanger (9) through pipeline, and hydrogen C is heated to the hydrogen C of reaction temperature through hydrogen heat exchanger I (10) through pipeline;Hydrogen C and water vapor B are mixed after entering mixer I (11) and become mixed gas D, and mixed gas D enters SOEC electrolytic cell (12) and generates electrolytic water hydrogen reaction, and the oxygen and hydrogen that the electrolytic reaction of SOEC electrolytic cell (12) produces are separated as hydrogen C and oxygen E through pipeline and enter separator (15);Hydrogen C is heated through the hot side entrance of water vapor shell type heat exchanger (7) through pipeline and carries out heat exchange with water B, and the lower temperature hydrogen C after heat exchange becomes lower temperature hydrogen C through the hot side entrance of hydrogen heat exchanger II (17), and hydrogen heat exchanger II (17) provides waste heat for first evaporimeter (1), and hydrogen C is compressed as high pressure hydrogen C through pipeline and enters hydrogen compressor (18), and high pressure hydrogen C is finally stored into gas holder (19) through pipeline;Oxygen E is purged in mixer II (16) through air D, and the high temperature air and oxygen mixed gas D that the production is through pipeline and enters the hot side entrance of shell type heat exchanger (13) and is heated into low temperature air and oxygen mixed gas D, and then air and oxygen mixed gas D are through pipeline and enter the hot side entrance of shell type heat exchanger (9) and are heated into lower temperature air and oxygen mixed gas D and are discharged. Photovoltaic power generation board (20) provides total energy H, provides energy H for water vapor heat exchanger (8), provides energy H for hydrogen heat exchanger I (10), provides energy H for SOEC electrolytic cell (12), and provides energy H for air heat exchanger (14).
Claims
1. A mine water evaporation hydrogen production device driven by SOEC waste heat, comprising a first evaporator (1), a second evaporator (2), a third evaporator (3), a heat exchanger I (4), a heat exchanger II (5), a water vapor mixer (6), a water vapor shell heat exchanger (7), a water vapor heat exchanger (8), a hydrogen shell heat exchanger (9), a hydrogen heat exchanger I (10), a mixer I (11), a SOEC electrolytic cell (12), an air shell heat exchanger (13), an air heat exchanger (14), a separator (15), a mixer II (16), a hydrogen heat exchanger II (17), a hydrogen compressor (18), a gas storage tank (19), a photovoltaic panel (20), the mine water A enters the first evaporator (1), the evaporated mine water A enters the second evaporator (2), the mine water A after the second evaporation enters the third evaporator (3), the concentrated solution A after the third evaporator (3) enters the concentrated solution pool, the water vapor B evaporated by the evaporator is condensed into water B through the heat exchanger I (4), the water vapor B is condensed into distilled water B through the heat exchanger II (5), the water B enters the water vapor mixer (6) through the pipeline, the oxygen and hydrogen generated by the electrolysis reaction of the SOEC electrolytic cell (12) are introduced into the separator (15) for separation, the separated oxygen E is mixed with the air D to form a mixed gas D, characterized in that: The photovoltaic power generation panel (20) supplies power for the SOEC electrolytic cell (12); the hydrogen C enters the hot side inlet of the water vapor shell heat exchanger (7) through a pipeline to exchange heat to become lower temperature hydrogen C, and the hydrogen C exchanges heat through the hydrogen heat exchanger II (17) to become lower temperature hydrogen C; the oxygen E separated by the separator (15) is mixed with the air D to form the mixed gas D, and the output high temperature mixed gas D enters the hot side inlet of the air shell heat exchanger (13) through a pipeline to exchange heat to become lower temperature mixed gas D, and the mixed gas D enters the hot side inlet of the hydrogen shell heat exchanger (9) through a pipeline.
2. The mine water evaporation hydrogen production device driven by SOEC waste heat according to claim 1, characterized in that The photovoltaic power generation panel (20) supplies power for the water vapor heat exchanger (8), the hydrogen heat exchanger I (10), the SOEC electrolytic cell (12) and the air heat exchanger (14).
3. The mine water evaporation hydrogen production device driven by SOEC waste heat according to claim 1, characterized in that The hydrogen C enters the hot side inlet of the water vapor shell heat exchanger (7) through a pipeline to provide waste heat for the water B out of the mixer (6), and the hydrogen C exchanges heat through the hydrogen heat exchanger II (17) to provide waste heat for the first evaporator (1).
4. The mine water evaporation hydrogen production device driven by SOEC waste heat according to claim 1, characterized in that The mixed gas D of the oxygen and the air enters the hot side inlet of the air shell heat exchanger (13) through a pipeline to provide waste heat for the entering air D, and the mixed gas D of the air and the oxygen enters the hot side inlet of the hydrogen shell heat exchanger (9) through a pipeline to provide waste heat for the entering hydrogen C.