CN217031320U - Multistage heating system based on hydrogen energy - Google Patents
Multistage heating system based on hydrogen energy Download PDFInfo
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- CN217031320U CN217031320U CN202123108448.XU CN202123108448U CN217031320U CN 217031320 U CN217031320 U CN 217031320U CN 202123108448 U CN202123108448 U CN 202123108448U CN 217031320 U CN217031320 U CN 217031320U
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Abstract
The embodiment of the utility model provides a multistage heating system based on hydrogen energy, which comprises a plate type heat exchanger assembly, a hydrogen source, a heat pipe network, a proton exchange membrane fuel cell assembly and a hydrogen gas turbine assembly. The front end of the heat pipe network can be communicated with a water outlet of a heating system, the rear end of the heat pipe network can be communicated with a water inlet of the heating system, and the heat pipe network is connected with a low-temperature fluid pipe of the plate type heat exchanger component; each of the proton exchange membrane fuel cell assembly and the hydrogen gas turbine assembly is connected with the hydrogen source and the high-temperature fluid pipe of the plate heat exchanger assembly, the proton exchange membrane fuel cell assembly is arranged close to the front end of the heat pipe network, and the hydrogen gas turbine assembly is arranged close to the rear end of the heat pipe network. Therefore, the multistage heating system based on hydrogen energy has the advantages of improving the energy utilization efficiency, relieving the pressure of heat supply of the traditional non-renewable energy sources and realizing zero-carbon clean heat supply.
Description
Technical Field
The utility model relates to the technical field of heat supply, in particular to a multistage heating system based on hydrogen energy.
Background
The heating system is an important infrastructure for ensuring the living quality of residents and the normal operation of urban functions, and is an important field related to the improvement of ecological environment in China, and currently, coal accounts for nearly 80% of urban heating energy in China. The hydrogen energy is a clean, carbon-free, flexible and efficient energy form, is an ideal medium for promoting the efficient utilization of traditional fossil energy and supporting the large-scale development of renewable energy, and has certain significance for guaranteeing the safety of energy systems in China.
In the related art, the practical efficiency of a Proton Exchange Membrane Fuel Cell (PEMFC) is about 50%, i.e., about 50% of the hydrogen energy input to the fuel cell is converted into electric energy, and the remaining 50% of the energy is discharged in the form of heat. Meanwhile, due to the characteristic of low working temperature of the PEMFC, the normal working temperature is about 80-90 ℃. The utilization of the waste heat of the PEMFC as a single heat source has low energy utilization rate and is difficult to meet the requirements of urban heating systems.
SUMMERY OF THE UTILITY MODEL
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
the present invention is directed to solving, at least in part, one of the technical problems in the related art. To this end, an embodiment of the present invention proposes a multi-stage heating system based on hydrogen energy. This multistage heating system based on hydrogen energy has promotion energy utilization efficiency, alleviates the pressure of traditional non-renewable energy heat supply, realizes the advantage of the clean heat supply of zero carbon.
The multistage heating system based on hydrogen energy comprises a plate heat exchanger assembly, a hydrogen source, a heat pipe network, a proton exchange membrane fuel cell assembly and a hydrogen gas turbine assembly. The front end of the heat pipe network can be communicated with a water outlet of a heating system, the rear end of the heat pipe network can be communicated with a water inlet of the heating system, and the heat pipe network is connected with a low-temperature fluid pipe of the plate type heat exchanger assembly. Each of the proton exchange membrane fuel cell assembly and the hydrogen gas turbine assembly is connected with the hydrogen source and the high-temperature fluid pipe of the plate heat exchanger assembly, the proton exchange membrane fuel cell assembly is arranged close to the front end of the heat pipe network, and the hydrogen gas turbine assembly is arranged close to the rear end of the heat pipe network.
The multistage heating system based on hydrogen energy can convert the hydrogen energy into electric energy and heat energy through each of the proton exchange membrane fuel cell assembly and the hydrogen gas turbine assembly, and cascade heating of a heat pipe network is formed by utilizing different temperatures of steam and water generated by the proton exchange membrane fuel cell assembly and the hydrogen gas turbine unit, so that the efficiency of a heat supply system is improved. In addition, the proton exchange membrane fuel cell assembly and the hydrogen gas turbine assembly are jointly used, and byproducts (hot water vapor) in the proton exchange membrane fuel cell assembly and the hydrogen gas turbine assembly are applied to a heating system while electric energy is generated, so that the energy utilization efficiency and the total energy efficiency of a co-production system are improved, and the comprehensive complementary utilization of renewable energy sources is realized. Compared with coal resources, the hydrogen energy has the advantages of zero carbon, economy, environmental protection and high efficiency.
Therefore, the multistage heating system based on hydrogen energy has the advantages of improving the energy utilization efficiency, relieving the pressure of heat supply of the traditional non-renewable energy sources and realizing clean heat supply without carbon.
In some embodiments, the pem fuel cell assembly includes a pem fuel cell and a first recycle tube, the pem fuel cell, the first recycle tube, and a portion of the plate heat exchanger assembly forming a first recycle loop.
In some embodiments, the first circulation tube includes a first section and a second section, the plate heat exchanger assembly includes a first plate heat exchanger, the liquid inlet of the first section is connected to the liquid outlet of the proton exchange membrane fuel cell, the liquid outlet of the first section is connected to the liquid inlet of the high-temperature liquid tube of the first plate heat exchanger, the liquid outlet of the high-temperature liquid tube of the first plate heat exchanger is connected to the liquid inlet of the second section, and the liquid outlet of the second section is connected to the liquid inlet of the proton exchange membrane fuel cell.
In some embodiments, the hydrogen gas turbine assembly comprises a hydrogen gas turbine and a water conduit, the hydrogen gas turbine, the water conduit and another part of the plate heat exchanger assembly are communicated in sequence, and the heat conduit pipe is connected with the another part of the plate heat exchanger assembly.
In some embodiments, the water conduit includes a third section and a fourth section, the plate heat exchanger assembly further includes a second plate heat exchanger, a liquid inlet of the third section is connected to a liquid outlet of the hydrogen gas turbine, a liquid outlet of the third section is connected to a liquid inlet of a high-temperature liquid conduit of the second plate heat exchanger, a liquid outlet of the high-temperature liquid conduit of the second plate heat exchanger is connected to a liquid inlet of the fourth section, and a liquid outlet of the fourth section is connected to the outside.
In some embodiments, the multistage hydrogen energy-based heating system further comprises an electric heater assembly, each of the pem fuel cell assembly and the hydrogen gas turbine being electrically connected to the electric heater assembly, each of the electric heater assembly and the heat pipe network being connected to a further portion of the plate heat exchanger assembly, such that heat from the electric heater assembly is transferred to the heat pipe network through the further portion of the plate heat exchanger assembly.
In some embodiments, the electric heater assembly includes an electric boiler and a second circulation tube, the electric boiler, the second circulation tube, and a further portion of the high temperature fluid tube of the plate heat exchanger assembly forming a second circulation loop.
In some embodiments, the second circulation pipe includes a fifth section and a sixth section, the plate heat exchanger assembly further includes a third plate heat exchanger, the liquid inlet of the fifth section is connected to the liquid outlet of the electric boiler, the liquid outlet of the fifth section is connected to the liquid inlet of the high-temperature liquid pipe of the third plate heat exchanger, the liquid outlet of the high-temperature liquid pipe of the third plate heat exchanger is connected to the liquid inlet of the sixth section, the liquid outlet of the sixth section is connected to the liquid inlet of the electric boiler, and the electric boiler, the fifth section, the third plate heat exchanger and the sixth section constitute a second circulation loop.
In some embodiments, the heat pipe network is sequentially communicated with the low-temperature fluid pipe of the first plate heat exchanger, the low-temperature fluid pipe of the third plate heat exchanger and the low-temperature fluid pipe of the second plate heat exchanger from front to back according to the direction of water flow in the heat pipe network.
In some embodiments, the multi-stage hydrogen energy-based heating system further comprises a battery electrically connected to each of the pem fuel cell assembly, hydrogen gas turbine assembly, and the electric heater assembly to achieve stability when the electric heater assembly is heated.
Drawings
Fig. 1 is a hydrogen energy based multi-stage heating system according to an embodiment of the present invention.
Reference numerals:
a hydrogen energy based multi-stage heating system 100;
a plate heat exchanger assembly 1; a first plate heat exchanger 11; a second plate heat exchanger 12; a third plate heat exchanger 13;
a heat pipe network 2;
a proton exchange membrane fuel cell assembly 3; a proton exchange membrane fuel cell 31; a first circulation pipe 32; a first section 321; a second section 322;
a hydrogen turbine assembly 4; a hydrogen gas turbine 41; a water introduction pipe 42; a third segment 421; a fourth segment 422;
an electric heater assembly 5; an electric boiler 51; a second circulation pipe 52; a fifth section 521; a sixth segment 522;
a storage battery 6;
a hydrogen source 7.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
A hydrogen energy based multi-stage heating system 100 according to an embodiment of the present invention is described below with reference to fig. 1.
The multistage heating system 100 based on hydrogen energy comprises a plate heat exchanger assembly 1, a hydrogen source 7, a heat pipe network 2, a proton exchange membrane fuel cell assembly 3 and a hydrogen turbine assembly 4.
The front end of the heat supply network pipe 2 can be communicated with a water outlet of a heating system, the rear end of the heat supply network pipe 2 can be communicated with a water inlet of the heating system, and the heat supply network pipe 2 is connected with a low-temperature fluid pipe of the plate type heat exchanger component 1; each of the proton exchange membrane fuel cell assembly 3 and the hydrogen turbine assembly 4 is connected with the hydrogen source 7 and the high-temperature fluid pipe of the plate heat exchanger assembly 1, the proton exchange membrane fuel cell assembly 3 is arranged close to the front end of the heat pipe network 2, and the hydrogen turbine assembly 4 is arranged close to the rear end of the heat pipe network 2.
The multistage heating system 100 based on hydrogen energy in the embodiment of the utility model can convert hydrogen energy into electric energy and heat energy through each of the proton exchange membrane fuel cell assembly 3 and the hydrogen gas turbine assembly 4, and the cascade heating of the heat network pipe 2 is formed by utilizing the different temperatures of steam and water generated by the proton exchange membrane fuel cell assembly 3 and the hydrogen gas turbine 41, so that the efficiency of the heating system is improved. In addition, the proton exchange membrane fuel cell assembly 3 and the hydrogen gas turbine assembly 4 are used jointly, so that the byproducts (hot water vapor) in the electric energy can be applied to a heating system while the electric energy is generated, the energy utilization efficiency and the total energy efficiency of a co-production system are improved, and the complementary utilization of renewable energy sources is realized. Compared with coal resources, the hydrogen energy has the advantages of zero carbon, economy, environmental protection and high efficiency.
Therefore, the multistage heating system 100 based on hydrogen energy of the embodiment of the present invention has the advantages of improving energy utilization efficiency, relieving the pressure of heat supply of the conventional non-renewable energy source, and realizing clean heat supply with zero carbon.
As shown in fig. 1, the pem fuel cell assembly 3 includes a pem fuel cell 31 and a first circulation pipe 32, and the pem fuel cell 31, the first circulation pipe 32 and a portion of the plate heat exchanger assembly 1 constitute a first circulation loop.
The multistage heating system 100 based on hydrogen energy according to the embodiment of the present invention forms the first circulation loop by the proton exchange membrane fuel cell 31, the first circulation pipe 32, and a portion of the plate heat exchanger assembly 1, thereby reducing waste of water resources. In addition, the first circulation loop can recycle the residual heat in the circulating water in the first circulation pipe 32, thereby reducing the waste of heat energy and further improving the efficiency of energy utilization.
As shown in fig. 1, the first circulation pipe 32 includes a first section 321 and a second section 322, the plate heat exchanger assembly 1 includes a first plate heat exchanger (a part of the plate heat exchanger assembly 1) 11, a liquid inlet of the first section 321 is connected to a liquid outlet of the pem fuel cell 31, a liquid outlet of the first section 321 is connected to a liquid inlet of a high-temperature liquid pipe of the first plate heat exchanger 11, a liquid outlet of the high-temperature liquid pipe of the first plate heat exchanger 11 is connected to a liquid inlet of the second section 322, and a liquid outlet of the second section 322 is connected to a liquid inlet of the pem fuel cell 31.
The multi-stage heating system 100 based on hydrogen energy according to the embodiment of the present invention is configured by the first circulation pipe 32 in stages (the first stage 321 and the second stage 322), and has advantages of simple structure and convenient installation.
As shown in fig. 1, the hydrogen gas turbine assembly 4 includes a hydrogen gas turbine 41 and a water conduit 42, the hydrogen gas turbine 41, the water conduit 42 and the other part of the plate heat exchanger assembly 1 are sequentially communicated, and the heat supply network pipe 2 is connected to the other part of the plate heat exchanger assembly 1.
The temperature of the water vapor generated by the hydrogen gas turbine 41 in the multistage heating system 100 based on hydrogen energy of the embodiment of the utility model can reach more than 100 ℃, and the heat in the water vapor in the water guide pipe 42 is transferred into the heat supply network pipe 2 through the plate type heat exchanger assembly 1, so that the heat generated in the water vapor is transferred into the heat supply network pipe 2 while the hydrogen gas turbine 41 generates electricity, thereby providing heat energy for the heating system and further reducing the pressure of heat supply of non-renewable energy (coal burning).
As shown in fig. 1, the water conduit 42 includes a third section 421 and a fourth section 422, the plate heat exchanger assembly 1 further includes a second plate heat exchanger (another part of the plate heat exchanger assembly 1) 12, a liquid inlet of the third section 421 is connected to a liquid outlet of the hydrogen turbine 41, a liquid outlet of the third section 421 is connected to a liquid inlet of a high-temperature liquid conduit of the second plate heat exchanger 12, a liquid outlet of the high-temperature liquid conduit of the second plate heat exchanger 12 is connected to a liquid inlet of the fourth section 422, and a liquid outlet of the fourth section 422 is connected to the outside. Has the advantages of simple structure and convenient installation.
As shown in fig. 1, the multi-stage hydrogen energy-based heating system 100 further includes an electric heater assembly 5, each of the pem fuel cell assembly 3 and the hydrogen gas turbine 41 being electrically connected to the electric heater assembly 5, each of the electric heater assembly 5 and the heat grid pipe 2 being connected to a further portion of the plate heat exchanger assembly 1, so that heat of the electric heater assembly 5 is transferred to the heat grid pipe 2 through the further portion of the plate heat exchanger assembly 1.
In the multistage heating system 100 based on hydrogen energy of the embodiment of the utility model, the electric heater assembly 5 is arranged, so that the electric energy generated by each of the proton exchange membrane fuel cell assembly 3 and the hydrogen gas turbine 41 is converted into heat energy by the electric heater assembly 5, and the generated heat energy is transferred to the heat network pipe 2 by the plate type heat exchanger assembly 1, thereby improving the efficiency of converting the energy into the heat energy.
As shown in fig. 1, the electric heater assembly 5 includes an electric boiler 51 and a second circulation pipe 52, the electric boiler 51, the second circulation pipe 52 and a high temperature fluid pipe of a further portion of the plate heat exchanger assembly 1 constituting a second circulation loop.
The multi-stage heating system 100 based on hydrogen energy according to the embodiment of the present invention forms a second circulation loop by the electric boiler 51, the second circulation pipe 52 and a high temperature fluid pipe of another part of the plate heat exchanger assembly 1, thereby reducing waste of water resources. In addition, the second circulation loop can recycle the residual heat in the circulating water in the second circulation pipe 52, thereby reducing the waste of heat energy and further improving the energy utilization efficiency.
As shown in fig. 1, the second circulation pipe 52 includes a fifth section 521 and a sixth section 522, the plate heat exchanger assembly 1 further includes a third plate heat exchanger (still another part of the plate heat exchanger assembly 1) 13, a liquid inlet of the fifth section 521 is connected to a liquid outlet of the electric boiler 51, a liquid outlet of the fifth section 521 is connected to a liquid inlet of the high-temperature liquid pipe of the third plate heat exchanger 13, a liquid outlet of the high-temperature liquid pipe of the third plate heat exchanger 13 is connected to a liquid inlet of the sixth section 522, a liquid outlet of the sixth section 522 is connected to a liquid inlet of the electric boiler 51, and the electric boiler 51, the fifth section 521, the third plate heat exchanger 13 and the sixth section 522 form a second circulation loop.
The multi-stage heating system 100 based on hydrogen energy according to the embodiment of the present invention has the advantages of simple structure and convenient installation by sectionally arranging the second circulation pipe 52 (the fifth section 521 and the sixth section 522).
As shown in fig. 1, according to the direction of the water flow in the heat pipe network 2, the heat pipe network 2 is sequentially communicated with the low-temperature fluid pipe of the first plate heat exchanger 11, the low-temperature fluid pipe of the third plate heat exchanger 13 and the low-temperature fluid pipe of the second plate heat exchanger 12 from front to back. In other words, the temperature of the return water of the heating system flowing through the low-temperature fluid pipe of the first plate heat exchanger 11, the low-temperature fluid pipe of the third plate heat exchanger 13, and the low-temperature fluid pipe of the second plate heat exchanger 12 increases in sequence. The temperature of the flowing water in the high-temperature fluid pipe of the first plate heat exchanger 11, the high-temperature fluid pipe of the third plate heat exchanger 13 and the high-temperature fluid pipe of the second plate heat exchanger 12 is also increased in sequence. That is to say, the multi-stage heating system 100 based on hydrogen energy according to the embodiment of the present invention provides a step temperature rise to the flowing water in the heat pipe network 2, thereby improving the thermal efficiency of the formation heat collecting system.
The multi-stage heating system 100 based on hydrogen energy of the embodiment of the utility model can further reduce the loss of energy conversion and improve the thermal efficiency.
As shown in fig. 1, the multi-stage heating system based on hydrogen energy 100 further includes a storage battery 6, and the storage battery 6 is electrically connected to each of the proton exchange membrane fuel cell assembly 3, the hydrogen gas turbine assembly 4, and the electric heater assembly 5 to achieve stability when the electric heater assembly 5 is heated.
The storage battery 6 arranged in the multistage heating system 100 based on hydrogen energy of the embodiment of the utility model can store the redundant electric energy generated in the proton exchange membrane fuel cell assembly 3 and the hydrogen gas turbine assembly 4, when the electric energy required by the electric boiler 51 for heating is insufficient, the storage battery 6 can discharge, the problem of insufficient power supply of the proton exchange membrane fuel cell assembly 3 and the hydrogen gas turbine assembly 4 is solved, and the stability of the power when the electric heater assembly 5 is heated is improved.
Alternatively, the battery 6 may be a lithium battery, a lead-acid battery, or a sodium-sulfur battery.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A multi-stage heating system based on hydrogen energy, comprising:
a plate heat exchanger assembly and a hydrogen source;
the front end of the heat pipe network can be communicated with a water outlet of a heating system, the rear end of the heat pipe network can be communicated with a water inlet of the heating system, and the heat pipe network is connected with a low-temperature fluid pipe of the plate type heat exchanger component;
the high-temperature fluid pipe of the plate heat exchanger assembly is connected with the hydrogen source, the high-temperature fluid pipe of the plate heat exchanger assembly is connected with the high-temperature fluid pipe of the plate heat exchanger assembly, the proton exchange membrane fuel cell assembly is arranged close to the front end of the heat pipe network, and the hydrogen gas turbine assembly is arranged close to the rear end of the heat pipe network.
2. The multi-stage hydrogen energy-based heating system of claim 1, wherein the pem fuel cell assembly comprises a pem fuel cell and a first circulation tube, the pem fuel cell, the first circulation tube and a portion of the plate heat exchanger assembly forming a first circulation loop.
3. The multi-stage hydrogen energy-based heating system according to claim 2, wherein the first circulation tube comprises a first section and a second section, the plate heat exchanger assembly comprises a first plate heat exchanger, the liquid inlet of the first section is connected to the liquid outlet of the proton exchange membrane fuel cell, the liquid outlet of the first section is connected to the liquid inlet of the high-temperature liquid pipe of the first plate heat exchanger, the liquid outlet of the high-temperature liquid pipe of the first plate heat exchanger is connected to the liquid inlet of the second section, and the liquid outlet of the second section is connected to the liquid inlet of the proton exchange membrane fuel cell.
4. The multi-stage hydrogen energy-based heating system according to claim 3, wherein the hydrogen gas turbine assembly comprises a hydrogen gas turbine and a water conduit, the hydrogen gas turbine, the water conduit and another part of the plate heat exchanger assembly are in communication in sequence, and the heat conduit pipe is connected with the another part of the plate heat exchanger assembly.
5. The multi-stage hydrogen energy-based heating system according to claim 4, wherein the water conduit comprises a third section and a fourth section, the plate heat exchanger assembly further comprises a second plate heat exchanger, a liquid inlet of the third section is connected to a liquid outlet of the hydrogen turbine, a liquid outlet of the third section is connected to a liquid inlet of a high-temperature liquid pipe of the second plate heat exchanger, a liquid outlet of the high-temperature liquid pipe of the second plate heat exchanger is connected to a liquid inlet of the fourth section, and a liquid outlet of the fourth section is connected to the outside.
6. The multi-stage hydrogen energy-based heating system according to claim 5, further comprising an electric heater assembly, each of the proton exchange membrane fuel cell assembly and the hydrogen gas turbine being electrically connected to the electric heater assembly, each of the electric heater assembly and the heat mesh pipe being connected to a further portion of the plate heat exchanger assembly, so that heat of the electric heater assembly is transferred to the heat mesh pipe through the further portion of the plate heat exchanger assembly.
7. The multi-stage hydrogen energy-based heating system of claim 6, wherein the electric heater assembly comprises an electric boiler and a second circulation tube, the electric boiler, the second circulation tube and a further portion of the high temperature fluid tube of the plate heat exchanger assembly forming a second circulation loop.
8. The multi-stage hydrogen energy-based heating system according to claim 7, wherein the second circulation pipe comprises a fifth section and a sixth section, the plate heat exchanger assembly further comprises a third plate heat exchanger, a liquid inlet of the fifth section is connected to a liquid outlet of the electric boiler, a liquid outlet of the fifth section is connected to a liquid inlet of a high-temperature liquid pipe of the third plate heat exchanger, a liquid outlet of the high-temperature liquid pipe of the third plate heat exchanger is connected to a liquid inlet of the sixth section, a liquid outlet of the sixth section is connected to a liquid inlet of the electric boiler, and the electric boiler, the fifth section, the third plate heat exchanger and the sixth section constitute a second circulation loop.
9. The multi-stage hydrogen energy-based heating system according to claim 8, wherein the heat pipe network is sequentially communicated with the low-temperature fluid pipe of the first plate heat exchanger, the low-temperature fluid pipe of the third plate heat exchanger and the low-temperature fluid pipe of the second plate heat exchanger from front to back according to the direction of water flow in the heat pipe network.
10. The multi-stage hydrogen energy-based heating system of any one of claims 6-9, further comprising a battery electrically connected to each of the pem fuel cell assembly, hydrogen gas turbine assembly, and electric heater assembly for stability of the electric heater assembly when heated.
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| CN202123108448.XU CN217031320U (en) | 2021-12-10 | 2021-12-10 | Multistage heating system based on hydrogen energy |
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| CN202123108448.XU CN217031320U (en) | 2021-12-10 | 2021-12-10 | Multistage heating system based on hydrogen energy |
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