阅读说明：本技术 高压氢能做功系统 (High-pressure hydrogen energy work-doing system ) 是由 贾鹏 于 2020-04-14 设计创作，主要内容包括：本发明涉及一种高压氢能做功系统,包括多个空气换热器和保护罩,以及设置在保护罩内的B1金属储氢材料反应床、B2金属储氢材料反应床、氢气换热器和多个膨胀机。本发明公开的高压氢能做功系统,在B1金属储氢材料反应床和B2金属储氢材料反应床内装填金属氢化物,利用金属氢化物吸氢放热和放氢吸热的特性形成冷端,利用室温与该冷端之间的温差并通过做功循环介质,实现膨胀做功,从而带动发电设备发电,充分利用了大自然能量及工业余热,有利于节能减排和创造经济效益。(The invention relates to a high-pressure hydrogen energy work-doing system which comprises a plurality of air heat exchangers, a protective cover, a B1 metal hydrogen storage material reaction bed, a B2 metal hydrogen storage material reaction bed, a hydrogen heat exchanger and a plurality of expanders, wherein the B1 metal hydrogen storage material reaction bed, the B2 metal hydrogen storage material reaction bed, the hydrogen heat exchanger and the expanders are arranged in the protective cover. The high-pressure hydrogen energy acting system disclosed by the invention is characterized in that a metal hydride is filled in a B1 metal hydrogen storage material reaction bed and a B2 metal hydrogen storage material reaction bed, cold ends are formed by utilizing the characteristics of hydrogen absorption, heat release and hydrogen release of the metal hydride, and expansion acting is realized by utilizing the temperature difference between room temperature and the cold ends and acting circulating media, so that power generation equipment is driven to generate power, natural energy and industrial waste heat are fully utilized, and the high-pressure hydrogen energy acting system is beneficial to energy conservation and emission reduction and creation of economic benefits.)

1. A high-pressure hydrogen energy work doing system is characterized in that: the system comprises a primary air heat exchanger (8), a secondary air heat exchanger (10), a tertiary air heat exchanger (12), a quaternary air heat exchanger (14), a quinary air heat exchanger (16) and a protective cover (28), as well as a B1 metal hydrogen storage material reaction bed (1), a B2 metal hydrogen storage material reaction bed (3), a hydrogen heat exchanger (7), a primary expansion machine (9), a secondary expansion machine (11), a tertiary expansion machine (13), a quaternary expansion machine (15), a quinary expansion machine (17) and a quinary expansion machine (18) which are arranged in the protective cover (28);

the heat exchange outlet of the B1 metal hydrogen storage material reaction bed (1) is connected with the inlet of the primary expansion machine (9) through the shell side of the hydrogen heat exchanger (7) and the primary air heat exchanger (8); the outlet of the primary expansion machine (9) is connected with the inlet of the secondary expansion machine (11) through the secondary air heat exchanger (10); the outlet of the secondary expansion machine (11) is connected with the inlet of the tertiary expansion machine (13) through the tertiary air heat exchanger (12); the outlet of the three-stage expansion machine (13) is connected with the inlet of the four-stage expansion machine (15) through the four-stage air heat exchanger (14); the outlet of the four-stage expansion machine (15) is connected with the inlet of the five-stage expansion machine (17) through the five-stage air heat exchanger (16); the outlet of the five-stage expansion machine (17) is connected with the inlet of the six-stage expansion machine (18) through the tube side of the hydrogen heat exchanger (7); the outlet of the six-stage expander (18) is connected with the heat exchange inlet of the B2 metal hydrogen storage material reaction bed (3);

the heat exchange outlet of the B2 metal hydrogen storage material reaction bed (3) is connected with the heat exchange inlet of the B1 metal hydrogen storage material reaction bed (1) through a liquid hydrogen bidirectional booster pump (6); the hydrogen discharge outlet of the B2 metal hydrogen storage material reaction bed (3) is connected with the hydrogen absorption inlet of the B1 metal hydrogen storage material reaction bed (1) through a hydrogen absorption and discharge circulating pump (4);

and power output shafts of the first-stage expansion machine (9), the second-stage expansion machine (11), the third-stage expansion machine (13), the fourth-stage expansion machine (15), the fifth-stage expansion machine (17) and the sixth-stage expansion machine (18) are respectively connected with a generator (19).

2. The high pressure hydrogen energy work producing system of claim 1, wherein: the system further comprises a metallic hydrogen storage material displacement device (2); the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3) are respectively connected with a metal hydrogen storage material replacement device (2) through an adding and extracting port; the metal hydrogen storage materials in the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3) exchange cold/heat of a partition wall in the metal hydrogen storage material replacement device (2), so that the temperature of the metal hydrogen storage material coming out of the B1 metal hydrogen storage material reaction bed (1) is reduced, and preparation is made for switching to hydrogen discharging operation; the temperature of the metal hydrogen storage material from the B2 metal hydrogen storage material reaction bed (3) rises to prepare for switching to hydrogen absorption operation; the metal hydrogen storage material displacement device (2) comprises but is not limited to mechanical, electric, gas transmission, hydraulic and other devices.

3. The high pressure hydrogen energy work producing system of claim 1, wherein: the working circulating medium in the system is hydrogen, inert gas or organic working medium;

when hydrogen is selected as a work-doing circulating medium of the system, the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3) respectively heat or cool the work-doing circulating medium in a direct heat exchange or partition wall heat exchange mode;

when inert gas or organic working medium or inorganic working medium is selected as working circulating medium of the system, the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3) respectively heat or cool the working circulating medium in a partition heat exchange mode, and correspondingly adjust the working state point corresponding to the metal hydrogen storage material, so that the inert gas or organic working medium or inorganic working medium can be gasified at high temperature and liquefied at low temperature, and the liquefied working medium is pressurized to form a working cycle.

4. The high pressure hydrogen energy work producing system of claim 1, wherein: the primary air heat exchanger (8), the secondary air heat exchanger (10), the tertiary air heat exchanger (12), the quaternary air heat exchanger (14) and the quinary air heat exchanger (16) include, but are not limited to, finned heat exchangers.

5. The high pressure hydrogen energy work producing system of claim 1, wherein: the protective cover (28) is provided with a combustible gas alarm (29) and a protective gas inlet (27), the protective gas inlet (27) is provided with a valve, and gas filled in the protective cover (28) comprises but is not limited to hydrogen, helium and nitrogen; the temperature and pressure within the protective cover (28) can be adjusted depending on operating conditions.

6. The high pressure hydrogen energy work producing system of claim 1, wherein: the metal hydrogen storage materials filled in the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3) are the same, the filling amount is allowed to be the same or different, and the replacement frequency of the metal hydrogen storage materials can be adjusted according to the process conditions; the amount of the metal hydrogen storage material filled in a single metal hydrogen storage material reaction bed is allowed to have redundancy, so that the hydrogen absorption and desorption rate of each time can meet the requirement of rapid high-low pressure switching, and the redundancy equivalent multiple can be adjusted according to the process conditions; a 1-fold redundant equivalent is the minimum amount of metallic hydrogen storage material required for a single hydrogen absorption saturation of the metallic hydrogen storage material throughout a complete process cycle.

7. The high pressure hydrogen energy work producing system of claim 1, wherein: the metal hydrogen storage materials stored in the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3) can be any combination of any particle sizes, and meanwhile, the metal hydrogen storage materials can be solid or hollow; metallic hydrogen storage materials include, but are not limited to, titanium chromium hydride;

the metal hydrogen storage material is a metal hydrogen storage material working combination with positive temperature correlation, and the hydrogen absorption/desorption state point and the working point parameter of the metal hydrogen storage material can be adjusted at will according to the process requirement; the metal hydrogen storage material with positive correlation of temperature is defined as absorbing high-pressure hydrogen at high temperature to release high-temperature heat and releasing low-pressure hydrogen at low temperature to release low-temperature cold; absorbing hydrogen to release high-temperature heat at high temperature, and utilizing the metal hydrogen storage material reaction bed to directly exchange heat to heat the working hydrogen; the system at least has one negative pressure unit, or the negative pressure of the metal hydrogen storage material, or the negative pressure of hydrogen liquefaction, or the combination of the above negative pressures; the work hydrogen heat exchange at low temperature is to absorb heat when the metal hydrogen storage material releases low-pressure hydrogen at low temperature, and the low-temperature cold energy generated by the metal hydrogen storage material is used for cooling the work hydrogen or other work working media for liquefaction.

8. The high pressure hydrogen energy work producing system of claim 1, wherein: the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quinary expander (17) and the quinary expander (18) are connected coaxially or non-coaxially;

when the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quintuplet expander (17) and the quintuplet expander (18) are not coaxially connected, power output shafts of the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quintuplet expander (17) and the quintuplet expander (18) are respectively connected with different generators (19);

when the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quintuplet expander (17) and the quintuplet expander (18) are coaxially connected, the power output shafts of the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quintuplet expander (17) and the quintuplet expander (18) are all connected with the same generator (19);

when the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quintuplet expander (17) and the quintuplet expander (18) are coaxially connected, a multi-stage expander having a center tap is employed in place of the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quintuplet expander (17) and the quintuplet expander (18).

9. A high-pressure hydrogen energy work doing system is characterized in that: the system comprises a primary air heat exchanger (8), a secondary air heat exchanger (10), a tertiary air heat exchanger (12), a quaternary air heat exchanger (14), a quinary air heat exchanger (16) and a protective cover (28), as well as a B1 metal hydrogen storage material reaction bed (1), a B2 metal hydrogen storage material reaction bed (3), a hydrogen heat exchanger (7), a primary expansion machine (9), a secondary expansion machine (11), a tertiary expansion machine (13), a quaternary expansion machine (15), a quinary expansion machine (17), a quinary expansion machine (18), a reverse circulation inlet pipe (21) and a reverse circulation outlet pipe (22) which are arranged in the protective cover (28);

the outlet end of the reverse circulation inlet pipe (21) is connected with the first port of the coil in the B1 metal hydrogen storage material reaction bed (1) through a first three-way valve (20); the second port of the coil pipe in the B1 metal hydrogen storage material reaction bed (1) is connected with the first port of the coil pipe in the B2 metal hydrogen storage material reaction bed (3) through a liquid hydrogen bidirectional booster pump (6); the second port of the coil in the B2 metal hydrogen storage material reaction bed (3) is connected with the shell side inlet of the hydrogen heat exchanger (7) through a second three-way valve (24), the reverse circulation outlet pipe (22) and a third three-way valve (25); the shell side outlet of the hydrogen heat exchanger (7) is connected with the inlet of the primary expansion machine (9) through the primary air heat exchanger (8); the outlet of the primary expansion machine (9) is connected with the inlet of the secondary expansion machine (11) through the secondary air heat exchanger (10); the outlet of the secondary expansion machine (11) is connected with the inlet of the tertiary expansion machine (13) through a tertiary air heat exchanger (12); the outlet of the three-stage expansion machine (13) is connected with the inlet of the four-stage expansion machine (15) through the four-stage air heat exchanger (14); the outlet of the four-stage expansion machine (15) is connected with the inlet of the five-stage expansion machine (17) through the five-stage air heat exchanger (16); the outlet of the five-stage expansion machine (17) is connected with the inlet of the six-stage expansion machine (18) through the tube side of the hydrogen heat exchanger (7); the outlet of the six-stage expansion machine (18) is respectively connected with the inlet end of the reverse circulation inlet pipe (21) and the second three-way valve (24) through a fourth three-way valve (26);

and power output shafts of the first-stage expansion machine (9), the second-stage expansion machine (11), the third-stage expansion machine (13), the fourth-stage expansion machine (15), the fifth-stage expansion machine (17) and the sixth-stage expansion machine (18) are respectively connected with a generator (19).

10. A high-pressure hydrogen energy work doing system is characterized in that: the system comprises a primary air heat exchanger (8), a secondary air heat exchanger (10), a tertiary air heat exchanger (12), a quaternary air heat exchanger (14), a quinary air heat exchanger (16) and a protective cover (28), as well as a B1 metal hydrogen storage material reaction bed (1), a B2 metal hydrogen storage material reaction bed (3), a hydrogen heat exchanger (7), a primary expansion machine (9), a secondary expansion machine (11), a tertiary expansion machine (13), a quaternary expansion machine (15), a quinary expansion machine (17), a quinary expansion machine (18) and a heat exchange coil replacement device (23) which are arranged in the protective cover (28);

a first outlet of the heat exchange coil replacement device (23) is connected with an inlet of the primary expansion machine (9) through a shell side of the hydrogen heat exchanger (7) and the primary air heat exchanger (8); the outlet of the primary expansion machine (9) is connected with the inlet of the secondary expansion machine (11) through the secondary air heat exchanger (10); the outlet of the secondary expansion machine (11) is connected with the inlet of the tertiary expansion machine (13) through a tertiary air heat exchanger (12); the outlet of the three-stage expansion machine (13) is connected with the inlet of the four-stage expansion machine (15) through the four-stage air heat exchanger (14); the outlet of the four-stage expansion machine (15) is connected with the inlet of the five-stage expansion machine (17) through the five-stage air heat exchanger (16); the outlet of the five-stage expansion machine (17) is connected with the inlet of the six-stage expansion machine (18) through the tube side of the hydrogen heat exchanger (7); the outlet of the six-stage expansion machine (18) is connected with the first inlet of the heat exchange coil replacement device (23);

a second outlet of the heat exchange coil replacing device (23) is connected with a second inlet of the heat exchange coil replacing device (23) through a liquid hydrogen bidirectional pressurizing pump (6);

the heat exchange coil replacement device (23) is also respectively connected with the coils in the B1 metal hydrogen storage material reaction bed (1) and the coils in the B2 metal hydrogen storage material reaction bed (3) and is used for exchanging the coils in the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3);

the heat exchange coil replacing device (23) comprises but is not limited to mechanical, electric, hydraulic and other devices, when the metal hydrogen storage material in the B1 metal hydrogen storage material reaction bed (1) absorbs hydrogen and is close to the tail end, and simultaneously the metal hydrogen storage material in the B2 metal hydrogen storage material reaction bed (3) releases hydrogen and is close to the tail end, the heat exchange coil replacing device (23) is started, the pressure and temperature in the B1 metal hydrogen storage material reaction bed (1) and the B2 metal hydrogen storage material reaction bed (3) are kept stable and isolated from the environment, the hydrogen liquefying coil (31) and the hydrogen gasifying coil (30) are replaced, the hydrogen liquefying coil (31) enters the B1 metal hydrogen storage material reaction bed (1), the hydrogen gasifying coil (30) enters the B2 metal hydrogen storage material reaction bed (3), and the hydrogen liquefying coil (31) is always in the metal material hydrogen storage low-temperature low-pressure hydrogen release reaction bed, the hydrogen gasification coil (30) is always positioned in the metal hydrogen storage material high-temperature high-pressure hydrogen absorption reaction bed;

liquefied hydrogen in the hydrogen liquefaction coil pipe (31) is firstly pressurized in a liquid hydrogen pressurizing pump (6) in the B1 metal hydrogen storage material reaction bed (1) or in the B2 metal hydrogen storage material reaction bed (3), then is gasified in the hydrogen gasification coil pipe (30), and enters the shell pass of the hydrogen heat exchanger (7) after being gasified, so that the cyclic work doing process of firstly liquefying, pressurizing and then gasifying and heating is completed;

the power output shafts of the primary expansion machine (9), the secondary expansion machine (11), the tertiary expansion machine (13), the quaternary expansion machine (15), the quinary expansion machine (17) and the quinary expansion machine (18) are respectively connected with a generator (19);

the primary expander (9), the secondary expander (11), the tertiary expander (13), the quaternary expander (15), the quinary expander (17) and the quinary expander (18) may be replaced by other work machines including, but not limited to, pistons.

Technical Field

The invention belongs to the technical field of comprehensive utilization of energy, and relates to a high-pressure hydrogen energy work system.

Background

Energy shortage, environmental pollution, global climate change, and the development of clean, efficient, safe and sustainable energy is urgently needed, wherein hydrogen energy is being valued by more and more countries. The engine industry has developed rapidly into the twenty-first century, however, gasoline and diesel engines remain the major engine choices. Gasoline and diesel oil are non-renewable resources, in order to alleviate a series of negative effects caused by the shortage of petroleum resources and reduce atmospheric pollution and exhaust emission of engines, alternative fuels of engines need to be found, and hydrogen energy is the most ideal clean fuel at present. With the stricter environmental protection measures in various countries in the world, hydrogen energy engines have become a key point in engine research and development due to the characteristics of energy conservation, low emission and the like, and have already begun to be commercialized. The traditional hydrogen energy utilization mostly obtains heat energy and kinetic energy through directly burning gaseous hydrogen, but gaseous hydrogen is difficult for storage and transportation, and the obtained hydrogen energy of burning directly can produce a series of influences problems of safe handling such as knockings, unstability on power system.

Disclosure of Invention

The invention aims to provide a high-pressure hydrogen energy acting system, which utilizes the characteristics of hydrogen absorption, heat release and hydrogen desorption of metal hydrogen storage materials to form a cold end, utilizes the temperature difference between room temperature and the cold end and acts through a working circulating medium to realize expansion acting, thereby driving power generation equipment to generate power, fully utilizing natural energy and industrial waste heat, being beneficial to energy conservation and emission reduction and creating economic benefits.

According to a first aspect, an embodiment of the present application provides a high-pressure hydrogen energy work-doing system, which includes a primary air heat exchanger, a secondary air heat exchanger, a tertiary air heat exchanger, a quaternary air heat exchanger, a quinary air heat exchanger, and a protective cover, and a B1 metal hydrogen storage material reaction bed, a B2 metal hydrogen storage material reaction bed, a hydrogen heat exchanger, a primary expander, a secondary expander, a tertiary expander, a quaternary expander, a quinary expander, and a quinary expander that are disposed in the protective cover.

The heat exchange outlet of the B1 metal hydrogen storage material reaction bed is connected with the inlet of the primary expansion machine through the shell side of the hydrogen heat exchanger and the primary air heat exchanger; the outlet of the first-stage expansion machine is connected with the inlet of the second-stage expansion machine through a second-stage air heat exchanger; the outlet of the second-stage expansion machine is connected with the inlet of the third-stage expansion machine through a third-stage air heat exchanger; the outlet of the third-stage expansion machine is connected with the inlet of the fourth-stage expansion machine through a fourth-stage air heat exchanger; the outlet of the four-stage expansion machine is connected with the inlet of the five-stage expansion machine through the five-stage air heat exchanger; the outlet of the five-stage expansion machine is connected with the inlet of the six-stage expansion machine through the tube side of the hydrogen heat exchanger; the outlet of the six-stage expansion machine is connected with the heat exchange inlet of the B2 metal hydrogen storage material reaction bed.

The heat exchange outlet of the B2 metal hydrogen storage material reaction bed is connected with the heat exchange inlet of the B1 metal hydrogen storage material reaction bed through a liquid hydrogen bidirectional booster pump. The hydrogen discharge outlet of the B2 metal hydrogen storage material reaction bed is connected with the hydrogen absorption inlet of the B1 metal hydrogen storage material reaction bed through a hydrogen absorption and discharge circulating pump.

And power output shafts of the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are respectively connected with the generator.

Further, the system also comprises a metal hydrogen storage material displacement device. The B1 metal hydrogen storage material reaction bed and the B2 metal hydrogen storage material reaction bed are respectively connected with the metal hydrogen storage material replacement device through an adding and extracting port. The metal hydrogen storage materials in the B1 metal hydrogen storage material reaction bed and the B2 metal hydrogen storage material reaction bed exchange cold/heat in the metal hydrogen storage material replacement device, so that the temperature of the metal hydrogen storage material for hydrogen absorption operation in the current cycle is reduced, and preparation is made for switching to hydrogen discharge operation. And the temperature of the metal hydrogen storage material for hydrogen discharge operation in the current cycle rises to prepare for switching to hydrogen absorption operation.

Furthermore, the working circulating medium in the system is hydrogen, inert gas or organic working medium.

When hydrogen is selected as a work-doing circulating medium of the system, the B1 metal hydrogen storage material reaction bed and the B2 metal hydrogen storage material reaction bed respectively heat or cool the work-doing circulating medium in a direct heat exchange or partition wall heat exchange mode.

When inert gas or organic working medium is selected as the working circulating medium of the system, the B1 metal hydrogen storage material reaction bed and the B2 metal hydrogen storage material reaction bed respectively heat or cool the working circulating medium in a partition heat exchange mode, and correspondingly adjust the working state points corresponding to the metal hydrogen storage materials, so that the inert gas or the organic working medium can be gasified at high temperature and liquefied at low temperature.

Furthermore, the primary air heat exchanger, the secondary air heat exchanger, the tertiary air heat exchanger, the four-stage air heat exchanger and the five-stage air heat exchanger are all fin type heat exchangers.

Further, the safety cover is provided with a combustible gas alarm and a protective gas inlet, the protective gas inlet is provided with a valve, and gas filled in the safety cover comprises but is not limited to hydrogen, helium and nitrogen. The temperature and pressure in the protective cover can be adjusted according to working conditions.

Furthermore, the metal hydrogen storage materials filled in the B1 metal hydrogen storage material reaction bed and the B2 metal hydrogen storage material reaction bed are the same, the filling amount is allowed to be the same, and the filling amount is also allowed to be different, and the replacement frequency of the metal hydrogen storage materials can be adjusted according to the process conditions. The amount of the metal hydrogen storage material filled in the single metal hydrogen storage material reaction bed is allowed to have redundancy, so that the hydrogen absorbing and releasing rate of each time can meet the requirement of rapid high-low pressure switching, and the redundancy equivalent multiple can be adjusted according to the process conditions. A 1-fold redundant equivalent is the minimum amount of metallic hydrogen storage material required for a single hydrogen absorption saturation of the metallic hydrogen storage material throughout a complete process cycle.

Further, the metallic hydrogen storage material stored in the B1 metallic hydrogen storage material reaction bed and the B2 metallic hydrogen storage material reaction bed may be any combination of any particle size, and at the same time, the metallic hydrogen storage material may be solid or hollow. Metallic hydrogen storage materials include, but are not limited to, titanium chromium hydride.

The metal hydrogen storage material is a metal hydrogen storage material working combination with positive temperature correlation, and the hydrogen absorption/desorption state point and the working point parameter of the metal hydrogen storage material can be adjusted at will according to the process requirement. The metal hydrogen storage material with positive correlation of temperature does work by absorbing high-pressure hydrogen at high temperature to release high-temperature heat and releasing low-pressure hydrogen at low temperature to release low-temperature cold. Absorbing hydrogen to release high-temperature heat at high temperature, and utilizing the metal hydrogen storage material reaction bed to directly exchange heat to heat the working hydrogen. The system at least has one negative pressure unit, or the negative pressure of the metal hydrogen storage material, or the negative pressure of hydrogen liquefaction, or the combination of the above negative pressures. The heat exchange of the working hydrogen at low temperature is to absorb heat when the metal hydrogen storage material releases low-pressure hydrogen at low temperature, and the low-temperature cold energy generated by the metal hydrogen storage material is used for cooling the working hydrogen for liquefaction.

Further, the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are connected coaxially or non-coaxially.

When the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are not coaxially connected, power output shafts of the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are respectively connected with different generators.

When the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are coaxially connected, power output shafts of the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are all connected with the same generator.

When the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are coaxially connected, the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are replaced by the multi-stage expander with a middle tap.

According to a second aspect, the embodiment of the present application provides another high-pressure hydrogen energy work-doing system, which includes a primary air heat exchanger, a secondary air heat exchanger, a tertiary air heat exchanger, a quaternary air heat exchanger, a quinary air heat exchanger, a protective cover, and a B1 metal hydrogen storage material reaction bed, a B2 metal hydrogen storage material reaction bed, a hydrogen heat exchanger, a primary expander, a secondary expander, a tertiary expander, a quaternary expander, a quinary expander, a reverse circulation inlet pipe, and a reverse circulation outlet pipe disposed in the protective cover.

The outlet end of the reverse circulation inlet pipe is connected with the first port of the coil pipe in the B1 metal hydrogen storage material reaction bed through a first three-way valve; the second port of the coil pipe in the B1 metal hydrogen storage material reaction bed is connected with the first port of the coil pipe in the B2 metal hydrogen storage material reaction bed through a liquid hydrogen bidirectional booster pump; a second port of a coil pipe in the B2 metal hydrogen storage material reaction bed is connected with a shell pass inlet of the hydrogen heat exchanger through a second three-way valve, a reverse circulation outlet pipe and a third three-way valve; the shell pass outlet of the hydrogen heat exchanger is connected with the inlet of the first-stage expansion machine through the first-stage air heat exchanger; the outlet of the first-stage expansion machine is connected with the inlet of the second-stage expansion machine through a second-stage air heat exchanger; the outlet of the second-stage expansion machine is connected with the inlet of the third-stage expansion machine through a third-stage air heat exchanger; the outlet of the third-stage expansion machine is connected with the inlet of the fourth-stage expansion machine through a fourth-stage air heat exchanger; the outlet of the four-stage expansion machine is connected with the inlet of the five-stage expansion machine through the five-stage air heat exchanger; the outlet of the five-stage expansion machine is connected with the inlet of the six-stage expansion machine through the tube side of the hydrogen heat exchanger; and the outlet of the six-stage expansion machine is respectively connected with the inlet end of the reverse circulation inlet pipe and the second three-way valve through a fourth three-way valve.

And power output shafts of the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are respectively connected with the generator.

According to a third aspect, the embodiment of the present application provides another high-pressure hydrogen energy work-doing system, which includes a primary air heat exchanger, a secondary air heat exchanger, a tertiary air heat exchanger, a quaternary air heat exchanger, a quinary air heat exchanger, a protective cover, and a B1 metal hydrogen storage material reaction bed, a B2 metal hydrogen storage material reaction bed, a hydrogen heat exchanger, a primary expander, a secondary expander, a tertiary expander, a quaternary expander, a quinary expander, and a heat exchange coil replacement device, which are disposed in the protective cover.

A first outlet of the heat exchange coil replacement device is connected with an inlet of the primary expansion machine through a shell side of the hydrogen heat exchanger and the primary air heat exchanger; the outlet of the first-stage expansion machine is connected with the inlet of the second-stage expansion machine through a second-stage air heat exchanger; the outlet of the second-stage expansion machine is connected with the inlet of the third-stage expansion machine through a third-stage air heat exchanger; the outlet of the third-stage expansion machine is connected with the inlet of the fourth-stage expansion machine through a fourth-stage air heat exchanger; the outlet of the four-stage expansion machine is connected with the inlet of the five-stage expansion machine through the five-stage air heat exchanger; the outlet of the five-stage expansion machine is connected with the inlet of the six-stage expansion machine through the tube side of the hydrogen heat exchanger; the outlet of the six-stage expansion machine is connected with the first inlet of the heat exchange coil replacement device.

And a second outlet of the heat exchange coil replacement device is connected with a second inlet on the heat exchange coil replacement device through a liquid hydrogen bidirectional pressurizing pump.

The heat exchange coil replacing device is also respectively connected with the coil in the B1 metal hydrogen storage material reaction bed and the coil in the B2 metal hydrogen storage material reaction bed and is used for exchanging the coils in the B1 metal hydrogen storage material reaction bed and the B2 metal hydrogen storage material reaction bed.

And power output shafts of the first-stage expander, the second-stage expander, the third-stage expander, the fourth-stage expander, the fifth-stage expander and the sixth-stage expander are respectively connected with the generator.

The high-pressure hydrogen energy acting system disclosed by the invention is characterized in that a metal hydride is filled in a B1 metal hydrogen storage material reaction bed and a B2 metal hydrogen storage material reaction bed, cold ends are formed by utilizing the characteristics of hydrogen absorption, heat release and hydrogen release of the metal hydride, and expansion acting is realized by utilizing the temperature difference between room temperature and the cold ends and acting circulating media, so that power generation equipment is driven to generate power, natural energy and industrial waste heat are fully utilized, and the high-pressure hydrogen energy acting system is beneficial to energy conservation and emission reduction and creation of economic benefits. The working device disclosed by the invention is arranged on vehicles such as ships and other equipment, can utilize energy carried by other natural substances, and can drive the expander to work through working medium circulation, so that the Kouleapu hydrogen energy is converted into mechanical energy to drive the vehicles to run, and green traffic and power generation are realized. The energy of Coreplus hydrogen is defined to include, but is not limited to, that produced by the combination of natural energy and similar devices of the present invention.

Drawings

Fig. 1 is a schematic structural diagram of a high-pressure hydrogen energy work system corresponding to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a high-pressure hydrogen energy work system according to embodiment 2 of the present invention;

FIG. 3 is a diagram showing a working condition diagram corresponding to the metallic hydrogen storage material in the example;

fig. 4 is a schematic structural diagram of a high-pressure hydrogen energy work system corresponding to embodiment 3 of the present invention;

fig. 5 is a schematic structural diagram of a high-pressure hydrogen energy work system according to embodiment 4 of the present invention.

Wherein: 1-B1 metal hydrogen storage material reaction bed, 2-metal hydrogen storage material replacement device, 3-B2 metal hydrogen storage material reaction bed, 4-hydrogen absorption and desorption circulating pump, 5-switching heat exchange circulating pump, 6-liquid hydrogen bidirectional pressure pump, 7-hydrogen heat exchanger, 8-first air heat exchanger, 9-first expander, 10-second air heat exchanger, 11-second expander, 12-third air heat exchanger, 13-third expander, 14-fourth air heat exchanger, 15-fourth expander, 16-fifth air heat exchanger, 17-fifth expander, 18-sixth expander, 19-generator, 20-first three-way valve, 21-reverse circulation inlet pipe, 22-reverse circulation outlet pipe, 23-heat exchange coil replacement device, 24-second three-way valve, 25-third three-way valve, 26-fourth three-way valve, 27-protection gas inlet, 28-protection cover, 29-combustible gas alarm, 30-hydrogen gasification coil pipe, and 31-hydrogen liquefaction coil pipe.

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.