阅读说明：本技术 伴有金属储氢材料的可逆压缩/膨胀机做功系统 (Reversible compression/expansion machine work-doing system with metal hydrogen storage material ) 是由 贾鹏 于 2019-08-30 设计创作，主要内容包括：本发明涉及一种伴有金属储氢材料的可逆压缩/膨胀机做功系统,包括高压换热罐、1号正反向可逆压缩/膨胀机、2号正反向可逆压缩/膨胀机、1号变温器、2号变温器和低压换热罐。高压换热罐顺次连接1号变温器、1号正反向可逆压缩/膨胀机、2号变温器和2号正反向可逆压缩/膨胀机,形成正向流动循环。低压换热罐顺次连接2号变温器、2号正反向可逆压缩/膨胀机、1号变温器和1号正反向可逆压缩/膨胀机,形成反向流动循环。本发明通过可逆压缩/膨胀机做功,驱动做功设备工作或带动发电设备发电。(The invention relates to a work doing system of a reversible compression/expansion machine accompanied with a metal hydrogen storage material, which comprises a high-pressure heat exchange tank, a No. 1 forward and reverse reversible compression/expansion machine, a No. 2 forward and reverse reversible compression/expansion machine, a No. 1 temperature changer, a No. 2 temperature changer and a low-pressure heat exchange tank. The high-pressure heat exchange tank is sequentially connected with the No. 1 temperature changer, the No. 1 forward and reverse reversible compression/expansion machine, the No. 2 temperature changer and the No. 2 forward and reverse reversible compression/expansion machine to form forward flow circulation. The low-pressure heat exchange tank is sequentially connected with the No. 2 temperature changer, the No. 2 forward and reverse reversible compression/expansion machine, the No. 1 temperature changer and the No. 1 forward and reverse reversible compression/expansion machine to form reverse flow circulation. The reversible compression/expansion machine is used for applying work to drive working equipment to work or drive power generation equipment to generate power.)

1. A reversible compression/expansion machine work-producing system with a metallic hydrogen storage material, characterized by: the work doing system comprises a high-pressure heat exchange tank (1), a No. 1 forward and reverse reversible compression/expansion machine (2), a No. 2 forward and reverse reversible compression/expansion machine (3), a No. 1 temperature changer (9), a No. 2 temperature changer (10) and a low-pressure heat exchange tank (7); the No. 1 forward and reverse reversible compression/expansion machine (2) is provided with a No. 1 expansion inlet (13), a No. 1 expansion outlet (14), a No. 1 compression inlet (15) and a No. 1 compression outlet (16); the No. 2 reversible compression/expansion machine (3) is provided with a No. 2 expansion inlet (13 '), a No. 2 expansion outlet (14'), a No. 2 compression inlet (15 ') and a No. 2 compression outlet (16'); an outlet of the high-pressure heat exchange tank (1) is connected to a hydrogen absorption inlet of a No. 1 temperature changer (9) through a valve (8), a hydrogen absorption outlet of the No. 1 temperature changer (9) is connected to a No. 1 expansion inlet (13) of a No. 1 forward and reverse reversible compression/expansion machine (2), a No. 1 expansion outlet (14) of the No. 1 forward and reverse reversible compression/expansion machine (2) is connected to a hydrogen discharge inlet of a No. 2 temperature changer (10) through a valve, a hydrogen discharge outlet of the No. 2 temperature changer (10) is connected to a No. 2 compression inlet (15 ') of a No. 2 forward and reverse reversible compression/expansion machine (3), and a No. 2 compression outlet (16') of the No. 2 forward and reverse reversible compression/expansion machine (3) is connected to an inlet of the high-pressure heat exchange tank (1) through a valve; an outlet of the low-pressure heat exchange tank (7) is connected to a hydrogen absorption inlet of a No. 2 temperature changer (10) through a valve, a hydrogen absorption outlet of the No. 2 temperature changer (10) is connected to a No. 2 expansion inlet (13 ') of a No. 2 reversible compression/expansion machine (3), a No. 2 expansion outlet (14') of the No. 2 reversible compression/expansion machine (3) is connected to a hydrogen discharge inlet of a No. 1 temperature changer (9) through a valve, a hydrogen discharge outlet of the No. 1 temperature changer (9) is connected to a No. 1 compression inlet (15) of the No. 1 reversible compression/expansion machine (2), and a No. 1 compression outlet (16) of the No. 1 reversible compression/expansion machine (2) is connected to an inlet of the low-pressure heat exchange tank (7) through a valve; the No. 1 forward and reverse reversible compression/expansion machine (2) and the No. 2 forward and reverse reversible compression/expansion machine (3) are coaxially connected with the power output shaft.

2. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 1, wherein: the work-doing system further comprises a generator (4); the No. 1 forward and reverse reversible compression/expansion machine (2) and the No. 2 forward and reverse reversible compression/expansion machine (3) are coaxially connected with a generator (4), and a circuit of the generator (4) is connected to an external power grid and/or a storage battery.

3. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 1, wherein: a metal hydrogen storage material reaction bed layer (5) is arranged in the No. 1 forward and reverse reversible compression/expansion machine (2), and a metal hydrogen storage material reaction bed layer (6) is arranged in the No. 2 forward and reverse reversible compression/expansion machine (3).

4. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 3, wherein: a metal hydrogen storage material reaction bed layer (5) is arranged in the temperature changer (9) No. 1, and a metal hydrogen storage material reaction bed layer (6) is arranged in the temperature changer (10) No. 2.

5. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 4, wherein: the metal B hydrogen storage material of the metal B hydrogen storage material reaction bed layer (5) comprises but is not limited to titanium metal hydrogen storage materials; the A metal hydrogen storage material of the A metal hydrogen storage material reaction bed layer (6) comprises but is not limited to rare earth metal hydrogen storage material.

6. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 1, wherein: the No. 1 forward and reverse reversible compression/expansion machine (2) and the No. 2 forward and reverse reversible compression/expansion machine (3) alternately perform expansion and compression processes;

the No. 1 positive and negative reversible compression/expansion machine (2) performs gas expansion work when the intake airflow flows in the positive direction and performs gas compression when the intake airflow flows in the negative direction; the No. 2 positive and negative reversible compression/expansion machine (3) performs gas compression when the intake airflow flows in the positive direction and performs gas expansion work when the intake airflow flows in the negative direction.

7. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 1, wherein: the system is also provided with a protective cover (28), and the protective cover (28) is provided with a combustible gas alarm (25) and a hydrogen adding port (24); the protective cover (28) is additionally provided with internal heat preservation or external heat preservation or internal and external heat preservation, and the pipeline in the protective cover (28) is additionally provided with internal heat preservation or external heat preservation or internal and external heat preservation; the protective cover (28) is also provided with a temperature regulator (26); the temperature regulator (26) emits high-temperature cold energy, and the low-temperature heat exchange tank (7) emits low-temperature cold energy; the protective cover (28) is filled with system heat supplementing hydrogen, and heat entering from the external environment through the temperature regulator (26) and heat generated by mechanical equipment are supplemented into the high-temperature heat exchange tank (1) so that the system can continuously work and operate; the system can supplement hot hydrogen gas, including but not limited to other gases or liquids or solids besides hydrogen gas, or mixtures of two or more of the above, or mixtures of three.

8. A liquid heat exchange medium work application system is characterized in that: comprises a high-pressure expander (11), a low-pressure expander (12), a No. 1 liquid heat exchange medium circulating pump (17), a No. 2 liquid heat exchange medium circulating pump (18), a metal hydrogen storage material reaction bed A and a metal hydrogen storage material reaction bed B; the metallic hydrogen storage material reaction bed A comprises a hydrogen reaction bed A1 (19) and a hydrogen reaction bed A2 (20), and the metallic hydrogen storage material reaction bed B comprises a hydrogen reaction bed B1 (21) and a hydrogen reaction bed B2 (22);

the hydrogen reaction bed A1 (19) and the hydrogen reaction bed A2 (20) are respectively connected with the high-pressure expander (11) and the low-pressure expander (12) in turn through hydrogen pipelines, and the high-pressure expander (11) and the low-pressure expander (12) are circularly connected with the hydrogen reaction bed B1 (21) and the hydrogen reaction bed B2 (22);

the hydrogen reaction bed B1 (21) and the hydrogen reaction bed B2 (22) are connected with a high-pressure expander (11) and a low-pressure expander (12) through hydrogen pipelines, and the high-pressure expander (11) and the low-pressure expander (12) are circularly connected with the hydrogen reaction bed A1 (19) and the hydrogen reaction bed A2 (20);

the hydrogen reaction bed A1 (19), the hydrogen reaction bed A2 (20), the hydrogen reaction bed B1 (21) and the hydrogen reaction bed B2 (22) are respectively connected with the No. 1 liquid heat exchange medium circulating pump (17) and the No. 2 liquid heat exchange medium circulating pump (18) in a circulating mode through liquid heat exchange medium pipelines; the No. 1 liquid heat exchange medium circulating pump (17) and the No. 2 liquid heat exchange medium circulating pump (18) are used for exchanging heat of circulating media in the hydrogen reaction bed A1 (19), the hydrogen reaction bed A2 (20) and the hydrogen reaction bed B1 (21) and the hydrogen reaction bed B2 (22) after the hydrogen reaction bed A1 (19), the hydrogen reaction bed A2 (20), the hydrogen reaction bed B1 (21) and the hydrogen reaction bed B2 (22) absorb/release hydrogen;

the hydrogen passing through the filtering membrane from the metal hydride reaction bed is free of liquid, and the filtering membrane of the metal hydride reaction bed only allows the hydrogen to pass through but not the liquid; the liquid heat exchange medium from the metal hydride reaction bed through the gas-liquid separator is free of hydrogen;

the protective cover (28) is filled with system heat supplementing hydrogen, and heat entering from the external environment through the temperature regulator (26) and heat generated by mechanical equipment are supplemented into the built-in heat exchanger, so that the system can continuously work and operate; the cold energy generated by the system acting is transmitted to the outside through the external heat exchanger; the system can supplement hot hydrogen gas, including but not limited to other gases or liquids or solids besides hydrogen gas, or mixtures of two or more of the above, or mixtures of three.

9. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 1, wherein: the reversible compression/expansion machine working system accompanied with the metal hydrogen storage material does work outwards through a Koehbur cycle; the Kohlenbu cycle is defined as that at least two metal hydrides exist in the system, at least four state points exist, and the hydrogen absorption heat release and the hydrogen desorption heat absorption of the at least four state points are kept or basically kept in heat balance in the system through a circulating heat exchange medium, namely the heat of the hydrogen absorption heat release of one state point is transferred to the hydrogen desorption heat absorption process in the other three state points by the circulating heat exchange medium;

the hydrogen desorption endothermic state in at least four existing state points does not or basically does not absorb heat into the environment, but transfers the heat of the hydrogen absorption exothermic heat in at least four state points to the hydrogen desorption endothermic process in at least four state points;

the hydrogen absorption and heat release state in at least four existing state points does not or basically does not dissipate heat to the environment, but transfers heat to the hydrogen desorption and heat absorption process in at least four existing state points, and the hydrogen desorption and heat absorption process in at least four existing state points can completely or almost completely receive the transferred heat;

the hydrogen absorption and heat release state points in the at least four state points can transfer heat to the hydrogen release and heat absorption state points, the heat is basically internal balance, and all or most of the heat absorption and heat release balance is completed in the system, so that heat dissipation to the environment or heat absorption from the environment is hardly needed;

the system can do work through the working cycle formed by at least four state points, the working form is that hydrogen is used as a medium to do work, the temperature-pressure of the hydrogen can be circularly changed by the at least four state points, so that the working cycle is formed, and the working equipment can be an impeller type slewing mechanism, a piston type slewing mechanism or other forms; at least four state points can be restored to the original state points through the power cycle, and the hydrogen absorption and heat release state points and the hydrogen desorption and heat absorption state points; allowing the system to release low-temperature cold energy into the environment and absorb heat from the environment;

besides using gaseous hydrogen as a circulating heat exchange medium of a work-doing system, other gases can be used as the circulating heat exchange medium; in addition, other substances including but not limited to stable solids, liquids or liquid organic hydrides can be used instead of hydrogen as the circulating heat exchange medium of the work-doing system; the heat exchange mode can be direct heat exchange or partition wall heat exchange, and the heat exchange medium for partition wall heat exchange can be gas, liquid, solid or a mixture of the above or a mixture of every two;

the state point connections of the pressure-temperature diagram of the at least two metal hydrides may or may not intersect;

the process of doing work by the system hydrogen comprises the work of circularly exchanging heat with the hydrogen and the work of doing work with the hydrogen.

10. The reversible compression/expansion machine work system with metallic hydrogen storage material of claim 1, wherein: for the B metal hydrogen storage material reaction bed layer (5) arranged in the No. 1 reversible compression/expansion machine (2) and the A metal hydrogen storage material reaction bed layer (6) arranged in the No. 2 reversible compression/expansion machine (3), the B metal hydrogen storage material reaction bed layer (5) and the A metal hydrogen storage material reaction bed layer (6) can be respectively arranged in a groove or a volute connected with a corresponding reversible compression/expansion machine impeller, or are coaxially arranged with the impeller but not contacted with the impeller, can rotate together with the impeller at the same rotating speed, or are fixed on the impeller or are not contacted with the impeller, and metal hydride is arranged in a grid net shape, the grid only allows hydrogen to pass through, does not allow solid particles to leak, and the metal hydride is coated on the coating of the impeller, or is not arranged, but the metal hydride in the temperature changer is combined with the metal hydride in the reversible compression/expansion machine The hydrogen passes through the groove when the hydrogen circularly expands in the forward direction in the No. 1 forward and reverse reversible compression/expansion machine (2), the temperature can be reduced because of work, the hydrogen absorption and heat release of the metal hydride can compensate the reduced temperature, the average temperature of the expanded hydrogen is always kept constant at a certain temperature, even if the expansion is slightly cooled, the heat can be timely supplemented, the temperature is corrected and reduced, and the average temperature of the work is always kept at a certain temperature; in the No. 2 positive and negative reversible compression/expansion machine (3), when the positive cyclic compression is carried out, hydrogen passes through the groove, the temperature rises due to power consumption, the temperature rise can be compensated by the hydrogen release and heat absorption of the metal hydride, so that the temperature of the compressed hydrogen is always kept constant at a certain temperature, even if the compression has a tiny temperature rise, the heat can be absorbed in time, the hydrogen for work is released, the temperature rise is corrected, and the average temperature for work is always kept at a certain temperature; the metal hydride in the temperature changer can be the same as or different from the metal hydride in the reversible compression/expansion machine, the temperature of the metal hydride entering the reversible compression/expansion machine can be adjusted, so that the temperature of the outlet of the temperature changer is higher than the average expansion temperature of the hydrogen of the reversible compression/expansion machine, or the temperature of the outlet of the temperature changer is lower than the average compression temperature of the hydrogen of the reversible compression/expansion machine, and at the moment, the metal hydride in the reversible compression/expansion machine is cancelled or reduced.

Technical Field

The invention belongs to the technical field of comprehensive utilization of energy, and relates to a reversible compression/expansion machine work-doing system accompanied with a metal hydrogen storage material.

Background

The nature is full of unlimited normal temperature energy sources, air, seawater and other unlimited normal temperature energy sources, and the energy source has development potential. Most of the energy on the earth comes from the sun, and nowadays, the energy is increasingly scarce, and new renewable green clean power generation technology is increasingly paid attention. In the existing new energy, the application of the water energy and wind energy power generation technology is common, and the technology is mature. The hydropower development potential is not large, the wind power is too dispersed, the hydropower development potential can be applied only in some specific areas, and the hydropower and wind power generation device has large investment and wide floor area. Air energy gradually enters the visual field of people, and the air energy water heater is also commonly applied at present, and the principle is that heat energy in the air is utilized to heat water through a heat pump. However, the technology of generating electricity by utilizing air energy is very few, the technology is not mature enough, and the popularization and the application are difficult.

The Chinese patent application with publication number CN 107939525A discloses a working system and method of a gas expander in a compressed air energy storage system, the working system of the gas expander in the compressed air energy storage system comprises a high-pressure gas source, a steam source, a mixer, a gas ejector and a gas expander, the gas ejector is provided with an inner cavity, a first inlet, a second inlet and an outlet which are communicated with the inner cavity, the high-pressure gas source and the steam source are communicated with the first inlet through the mixer, a waste gas outlet of the gas expander is communicated with the second inlet, and a gas inlet of the gas expander is communicated with the outlet. In this patent application, the high-pressure gas medium of high-pressure gas source output mixes the back with the high-temperature steam of steam source output, in as high-pressure working gas stream input gas sprayer, has improved the entrainment ability to low pressure exhaust gas, and then has improved the efficiency of doing work. However, the patent application of the invention can not realize the work-doing power generation of the compression/expansion machine through the heat generated by the hydrogen absorption and desorption of the metal hydrogen storage material.

Disclosure of Invention

The invention aims to provide a reversible compression/expansion machine work system accompanied with a metal hydrogen storage material, which takes hydrogen as a circulating working medium, utilizes the hydrogen absorption/hydrogen release characteristics of the metal hydrogen storage material, and drives work equipment to work or drives power generation equipment to generate power by the work of the reversible compression/expansion machine, thereby fully utilizing the natural energy and the industrial waste heat, being beneficial to energy conservation and emission reduction and creating economic benefits.

The embodiment of the application provides a work system of a reversible compression/expansion machine accompanied with a metal hydrogen storage material, wherein the work system comprises a high-pressure heat exchange tank, a No. 1 forward and reverse reversible compression/expansion machine, a No. 2 forward and reverse reversible compression/expansion machine, a No. 1 temperature changer, a No. 2 temperature changer and a low-pressure heat exchange tank; the No. 1 positive and negative reversible compression/expansion machine is provided with a No. 1 expansion inlet, a No. 1 expansion outlet, a No. 1 compression inlet and a No. 1 compression outlet; the No. 2 reversible compression/expansion machine is provided with a No. 2 expansion inlet, a No. 2 expansion outlet, a No. 2 compression inlet and a No. 2 compression outlet; an outlet of the high-pressure heat exchange tank is connected to a hydrogen absorption inlet of a temperature changer No. 1 through a valve, a hydrogen absorption outlet of the temperature changer No. 1 is connected to an expansion inlet No. 1 of a reversible compression/expansion machine No. 1, an expansion outlet No. 1 of the reversible compression/expansion machine No. 1 is connected to a hydrogen discharge inlet of a temperature changer No. 2 through a valve, a hydrogen discharge outlet of the temperature changer No. 2 is connected to a compression inlet No. 2 of the reversible compression/expansion machine No. 2, and a compression outlet No. 2 of the reversible compression/expansion machine No. 2 is connected to an inlet of the high-pressure heat exchange tank through a valve; an outlet of the low-pressure heat exchange tank is connected to a hydrogen absorption inlet of a No. 2 temperature changer through a valve, a hydrogen absorption outlet of the No. 2 temperature changer is connected to a No. 2 expansion inlet of a No. 2 reversible compression/expansion machine, a No. 2 expansion outlet of the No. 2 reversible compression/expansion machine is connected to a hydrogen discharge inlet of the No. 1 temperature changer through a valve, a hydrogen discharge outlet of the No. 1 temperature changer is connected to a No. 1 compression inlet of the No. 1 reversible compression/expansion machine, and a No. 1 compression outlet of the No. 1 reversible compression/expansion machine is connected to an inlet of the low-pressure heat exchange tank through a valve; the No. 1 forward and reverse reversible compression/expansion machine and the No. 2 forward and reverse reversible compression/expansion machine are coaxially connected with the power output shaft.

Further, the power system also comprises a generator; the No. 1 forward and reverse reversible compression/expansion machine and the No. 2 forward and reverse reversible compression/expansion machine are coaxially connected with a generator, and a generator circuit is connected to an external power grid and/or a storage battery.

Further, a metal hydrogen storage material reaction bed layer B is arranged in the No. 1 forward and reverse reversible compression/expansion machine, and a metal hydrogen storage material reaction bed layer A is arranged in the No. 2 forward and reverse reversible compression/expansion machine.

Further, a metal hydrogen storage material reaction bed layer B is arranged in the temperature changer No. 1, and a metal hydrogen storage material reaction bed layer A is arranged in the temperature changer No. 2.

Further, the metal hydrogen storage material B of the metal hydrogen storage material reaction bed layer comprises but is not limited to titanium metal hydrogen storage materials; the A metal hydrogen storage material of the A metal hydrogen storage material reaction bed layer includes but is not limited to rare earth metal hydrogen storage material.

Further, the No. 1 forward and reverse reversible compression/expansion machine and the No. 2 forward and reverse reversible compression/expansion machine alternately perform the expansion and compression processes. The No. 1 positive and negative reversible compression/expansion machine performs gas expansion work when the intake airflow flows in the positive direction, and performs gas compression when the intake airflow flows in the negative direction; the No. 2 reversible compression/expansion machine performs gas compression when the intake airflow flows forward and performs gas expansion work when the intake airflow flows backward.

Furthermore, the system is also provided with a protective cover, and the protective cover is provided with a combustible gas alarm and a hydrogen adding port; the protective cover is additionally provided with internal heat preservation or external heat preservation or internal and external heat preservation, and the pipeline in the protective cover is additionally provided with internal heat preservation or external heat preservation or internal and external heat preservation; the protective cover is also provided with a temperature regulator; the temperature regulator emits high-temperature cold energy, and the low-temperature heat exchange tank emits low-temperature cold energy; the protective cover is filled with system heat supplementing hydrogen, and heat entering from the external environment through the temperature regulator and heat generated by mechanical equipment are supplemented into the high-temperature heat exchange tank, so that the system can continuously work; the system can supplement hot hydrogen gas, including but not limited to other gases or liquids or solids besides hydrogen gas, or mixtures of two or more of the above, or mixtures of three.

The embodiment of the application provides a liquid heat exchange medium work-doing system, which comprises a high-pressure expander, a low-pressure expander, a No. 1 liquid heat exchange medium circulating pump, a No. 2 liquid heat exchange medium circulating pump, a metal hydrogen storage material reaction bed A and a metal hydrogen storage material reaction bed B; the metallic hydrogen storage material reaction bed A comprises a hydrogen reaction bed A1 and a hydrogen reaction bed A2, and the metallic hydrogen storage material reaction bed B comprises a hydrogen reaction bed B1 and a hydrogen reaction bed B2.

The hydrogen reaction bed A1 and the hydrogen reaction bed A2 are respectively connected with the high-pressure expander and the low-pressure expander in sequence through hydrogen pipelines, and the high-pressure expander and the low-pressure expander are circularly connected with the hydrogen reaction bed B1 and the hydrogen reaction bed B2.

The hydrogen reaction bed B1 and the hydrogen reaction bed B2 are connected with a high pressure expander and a low pressure expander through hydrogen pipelines, and the high pressure expander and the low pressure expander are circularly connected with the hydrogen reaction bed A1 and the hydrogen reaction bed A2.

The hydrogen reaction bed A1, the hydrogen reaction bed A2, the hydrogen reaction bed B1 and the hydrogen reaction bed B2 are respectively connected with the No. 1 liquid heat exchange medium circulating pump and the No. 2 liquid heat exchange medium circulating pump in a circulating manner through liquid heat exchange medium pipelines; and the No. 1 liquid heat exchange medium circulating pump and the No. 2 liquid heat exchange medium circulating pump are used for exchanging heat of circulating media in the hydrogen reaction bed A1, the hydrogen reaction bed A2, the hydrogen reaction bed B1 and the hydrogen reaction bed B2 after the hydrogen reaction bed A1, the hydrogen reaction bed A2, the hydrogen reaction bed B1 and the hydrogen reaction bed B2 absorb/discharge hydrogen.

The hydrogen passing through the filtering membrane from the metal hydride reaction bed is free of liquid, and the filtering membrane of the metal hydride reaction bed only allows the hydrogen to pass through but not the liquid; the liquid heat exchange medium exiting the metal hydride reaction bed through the gas-liquid separator is free of hydrogen.

The protective cover is filled with system heat supplementing hydrogen, and heat entering from the external environment through the temperature regulator and heat generated by mechanical equipment are supplemented into the built-in heat exchanger, so that the system can continuously work; the cold energy generated by the system acting is transmitted to the outside through the external heat exchanger; the system can supplement hot hydrogen gas, including but not limited to other gases or liquids or solids besides hydrogen gas, or mixtures of two or more of the above, or mixtures of three.

Further, the work-doing system of the reversible compression/expansion machine accompanied with the metal hydrogen storage material does work externally through a Koehbur cycle; the Kohlenbu cycle is defined as at least two metal hydrides in the system, at least four state points exist, and the hydrogen absorption heat release and the hydrogen desorption heat absorption of the at least four state points are kept or basically kept in heat balance in the system through a circulating heat exchange medium, namely the heat of the hydrogen absorption heat release of one state point is transferred to the hydrogen desorption heat absorption process in the other three state points by the circulating heat exchange medium.

The hydrogen evolving endothermic state of the at least four state points that is present does not or substantially does not endotherm to the environment, but rather transfers heat from the hydrogen evolution exothermic heat of the at least four state points to the hydrogen evolving endothermic process of the at least four state points.

The hydrogen-absorbing and heat-releasing states of the at least four existing state points do not or substantially do not dissipate heat to the environment, but rather transfer heat to the hydrogen-releasing and heat-absorbing processes of the at least four existing state points, and the hydrogen-releasing and heat-absorbing processes of the at least four existing state points are fully or almost fully capable of receiving the transferred heat.

The hydrogen absorption and heat release state points of the at least four state points can transfer heat to the hydrogen release and heat absorption state points, the heat is basically internal balance, and all or most of the heat absorption and heat release balance is completed inside the system, so that heat dissipation to the environment or heat absorption from the environment is hardly needed.

The system can do work through the working cycle formed by at least four state points, the working form is that hydrogen is used as a medium to do work, the temperature-pressure of the hydrogen can be circularly changed by the at least four state points, so that the working cycle is formed, and the working equipment can be an impeller type slewing mechanism, a piston type slewing mechanism or other forms; at least four state points can be restored to the original state points through the power cycle, and the hydrogen absorption and heat release state points and the hydrogen desorption and heat absorption state points; allowing the system to release cold into the environment and absorb heat from the environment.

Besides using gaseous hydrogen as a circulating heat exchange medium of a work-doing system, other gases can be used as the circulating heat exchange medium; in addition, other substances including but not limited to stable solids, liquids or liquid organic hydrides can be used instead of hydrogen as the circulating heat exchange medium of the work-doing system; the heat exchange mode can be direct heat exchange or partition wall heat exchange, and the heat exchange medium for partition wall heat exchange can be gas, liquid, solid or mixture of the above or mixture of every two.

The state point connections of the pressure-temperature diagram of at least two metal hydrides may or may not intersect.

The process of doing work by the system hydrogen comprises the work of circularly exchanging heat with the hydrogen and the work of doing work with the hydrogen.

Further, for the B metal hydrogen storage material reaction bed layer arranged in the No. 1 reversible compression/expansion machine and the a metal hydrogen storage material reaction bed layer arranged in the No. 2 reversible compression/expansion machine, the B metal hydrogen storage material reaction bed layer and the a metal hydrogen storage material reaction bed layer can be respectively arranged in a groove or a volute connected with the corresponding reversible compression/expansion machine impeller, or are coaxially arranged with the impeller but not contacted with the impeller, and can rotate with the impeller at the same rotating speed, or are fixed on the impeller or are not contacted with the impeller, the metal hydride is arranged in a grid net, the grid only allows hydrogen to pass through, but not allows solid particles to leak, the metal hydride is coated on the coating of the blade, the temperature changer is not arranged, and the metal hydride in the temperature changer and the metal hydride in the reversible compression/expansion machine are together arranged in the reversible direction and the reversible direction In the compression/expansion machine, in a No. 1 reversible compression/expansion machine, when the hydrogen circularly expands in the forward direction, the hydrogen passes through the groove, because of work, the temperature is reduced, the hydrogen absorption and heat release of the metal hydride can compensate the reduced temperature, so that the average temperature of the expanded hydrogen is always kept constant at a certain temperature, even if the expansion is slightly reduced in temperature, the heat can be timely supplemented, the temperature is corrected and reduced, and the average temperature of the work is always kept at a certain temperature; in the No. 2 positive and negative reversible compression/expansion machine, when the positive cyclic compression is carried out, hydrogen passes through the groove, the temperature rises due to power consumption, the temperature rise can be compensated by the hydrogen release and heat absorption of the metal hydride, so that the temperature of the compressed hydrogen is always kept constant at a certain temperature, even if the temperature rises slightly during the compression, the heat can be absorbed in time, the working hydrogen is released, the temperature rise is corrected, and the average working temperature is always kept at a certain temperature; the metal hydride in the temperature changer can be the same as or different from the metal hydride in the reversible compression/expansion machine, the temperature of the metal hydride entering the reversible compression/expansion machine can be adjusted, so that the temperature of the outlet of the temperature changer is higher than the average expansion temperature of the hydrogen of the reversible compression/expansion machine, or the temperature of the outlet of the temperature changer is lower than the average compression temperature of the hydrogen of the reversible compression/expansion machine, and at the moment, the metal hydride in the reversible compression/expansion machine is cancelled or reduced.

The reversible compression/expansion machine work-doing system with the metal hydrogen storage material disclosed by the invention has the advantages that the metal hydrogen storage material reaction bed layer is arranged at the impeller interval of the reversible compression/expansion machine, hydrogen is taken as a circulating working medium, the hydrogen absorption/desorption characteristics of the metal hydrogen storage material are utilized, the reversible compression/expansion machine works to drive work-doing equipment to work or drive power generation equipment to generate power, the natural energy and the industrial waste heat are fully utilized, the energy conservation and emission reduction are facilitated, and the economic benefit is created. The work system disclosed by the invention is arranged on vehicles such as ships and other equipment, can utilize energy carried by other natural substances, and can convert earth hydrogen energy into mechanical energy to drive the vehicles to run by driving the expander to do work through working medium circulation, thereby realizing green traffic.

Drawings

FIG. 1 is a schematic diagram of the construction of a reversible compressor/expander work system with a metallic hydrogen storage material according to the present invention;

FIG. 2 is a schematic diagram of a reverse flow cycle of a work system provided by the present invention;

FIG. 3 is a schematic structural diagram of a liquid heat exchange medium work-applying system provided by the present invention;

FIG. 4 is a schematic diagram of a reverse flow cycle of a liquid heat exchange medium work system provided by the present invention;

FIG. 5 is a view showing an operation state of a metal hydride according to the present invention;

FIG. 6 is a schematic view of the installation and distribution of metal hydrides in an impeller;

fig. 7 is a view showing an operation state of a metal hydride according to example 2 of the present invention.

Wherein: 1-high pressure heat exchange tank, 2-1 number positive and negative reversible compression/expansion machine, 3-2 number positive and negative reversible compression/expansion machine, 4-generator, 5-B metal hydrogen storage material reaction bed layer, 6-A metal hydrogen storage material reaction bed layer, 7-low pressure heat exchange tank, 8-valve, 9-1 number temperature changer, 10-2 number temperature changer, 11-high pressure expansion machine, 12-low pressure expansion machine, 13-1 number expansion inlet, 14-1 number expansion outlet, 15-1 number compression inlet, 16-1 number compression outlet, 13 '-2 number expansion inlet, 14' -2 number expansion outlet, 15 '-2 number compression inlet, 16' -2 number compression outlet, 17-1 number liquid heat exchange medium circulating pump, 18-2 number liquid hydrogen storage medium circulating pump, 19-A1 metal hydrogen storage material reaction bed layer, 20-A2 metal material reaction bed layer, 21-B1 metal material reaction bed layer, 22-B2 metal hydrogen storage material reaction bed layer, 23-hydrogen filtering membrane, 24-hydrogen adding port, 25-combustible gas alarm, 26-temperature regulator, 27-gas-liquid separator, 28-protective cover.

Detailed Description

The present invention will be described in detail with reference to the following examples and drawings. The scope of protection of the invention is not limited to the embodiments, and any modification made by those skilled in the art within the scope defined by the claims also falls within the scope of protection of the invention.