Hydrogen storage device and peak shaving system

Abstract

The invention relates to the technical field of thermal power plant peak regulation, in particular to a hydrogen storage device and a peak regulation system.The hydrogen storage device comprises a hydrogen production part, a hydrogen storage part and a hydrogen combustion part, the hydrogen storage part comprises a hydrogen storage device, a storage component and a high-pressure tank, an air inlet pipe is arranged on the side face of the high-pressure tank, and an air outlet pipe is arranged on the side face of the air inlet pipe; the air inlet pipe is communicated with the high-pressure tank, the air outlet pipe is communicated with the high-pressure tank, and an electromagnetic valve is arranged on the side face of the air outlet pipe; and an air outlet member; and the air draft component can guarantee that hydrogen can be fully mixed with combustion air when being injected into the combustion system, meanwhile, the fire risk caused by backfire can be prevented, the combustion efficiency and peak regulation capacity of the thermal power generating unit are improved through hydrogen combustion supporting, the flexibility of an electric power system is enhanced, cooperative work of new energy and the thermal power generating unit is achieved, and the overall operation efficiency of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of peak regulation in thermal power plants, and in particular to a hydrogen storage device and a peak regulation system. Background Art

[0002] With the increasing proportion of renewable energy generation, such as wind power and photovoltaics, the demand for peak load regulation in the power system is increasing. Due to the intermittent and fluctuating nature of renewable energy generation, power grids often experience "wind and solar power curtailment," resulting in wasted resources. Furthermore, thermal power units, as baseload power sources, have limited peak load regulation capabilities and cannot fully adapt to the fluctuating demand for renewable energy generation. Therefore, a peak load regulation method that integrates renewable energy and thermal power units is urgently needed to improve the overall system's peak load regulation capabilities and reduce wind and solar power curtailment. Summary of the Invention

[0003] In view of the problems existing in the prior art, the present invention is proposed.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a hydrogen storage device comprising:

[0005] A storage component, comprising a high-pressure tank, an air inlet pipe being provided on a side of the high-pressure tank, an air outlet pipe being provided on a side of the air inlet pipe, the air inlet pipe being connected to the high-pressure tank, the air outlet pipe being connected to the high-pressure tank, and a solenoid valve being provided on a side of the air outlet pipe; and

[0006] an air outlet member; and

[0007] Exhaust component.

[0008] As a preferred solution of the hydrogen storage device of the present invention, the gas outlet component includes an exhaust bowl provided at the end of the gas outlet pipe, an outer wall of the exhaust bowl is provided with an air distribution pipe, and a spiral tube is provided on the side of the air distribution pipe.

[0009] As a preferred solution of the hydrogen storage device described in the present invention, the spiral tube is connected to the gas distribution pipe, the end of the spiral tube away from the gas distribution pipe penetrates the outer wall of the exhaust bowl, and the exhaust bowl and the gas distribution pipe are connected through the spiral tube.

[0010] As a preferred solution of the hydrogen storage device of the present invention, a through groove is provided on the outer wall of the exhaust bowl, and the inner wall of the through groove is in contact with the outer wall of the spiral tube.

[0011] As a preferred solution of the hydrogen storage device described in the present invention, the exhaust component includes a motor arranged at the bottom of the exhaust bowl, the motor is connected to the high-pressure tank through a connecting frame, the output shaft of the motor is provided with an exhaust pump, and the top of the exhaust pump is provided with an air outlet pipe.

[0012] As a preferred solution of the hydrogen storage device of the present invention, the air outlet pipe is connected to the air distribution pipe, an air inlet pipe is provided at the bottom of the exhaust pump, and the air inlet pipe is connected to the exhaust pump.

[0013] The present invention also discloses a peak shaving system, which includes a hydrogen storage device as described in any one of the above items, and also includes: a hydrogen production part, a hydrogen storage part and a hydrogen combustion part.

[0014] As a preferred solution of the peak-shaving system described in the present invention, the hydrogen production unit includes a water storage device, a water electrolysis hydrogen production device, an oxygen storage device, a hydrogen storage device and a combustion regulation device. The water storage device is connected to the water electrolysis hydrogen production device, the water electrolysis hydrogen production device is connected to the oxygen storage device, the water electrolysis hydrogen production device is connected to the hydrogen storage device, and the hydrogen storage device is connected to the combustion regulation device.

[0015] As a preferred solution of the peak-shaving system described in the present invention, the hydrogen storage part includes an air intake device, a dryer and a compressor, the air intake device is connected to the hydrogen storage device, the dryer is connected to the air intake device, the dryer is connected to the compressor, and the compressor is connected to the storage component.

[0016] As a preferred solution of the peak-shaving system described in the present invention, the hydrogen combustion unit includes a power grid mobilization system, a hydrogen burner, a gas-supporting gas equipment and a combustion furnace, the hydrogen burner is connected to the gas outlet component, the hydrogen burner is connected to the gas-supporting gas equipment, and the hydrogen burner is connected to the combustion furnace.

[0017] The beneficial effects of the present invention are as follows: hydrogen-assisted combustion improves the combustion efficiency and peak-shaving capability of thermal power units, enhances the flexibility of the power system, realizes the coordinated operation of new energy and thermal power units, and improves the overall operating efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0019] Figure 1 Schematic diagram of the structure of the hydrogen storage device in the present invention.

[0020] Figure 2 Schematic diagram of the structure of the gas outlet component in the present invention.

[0021] Figure 3Schematic diagram of the structure of the hydrogen production unit in the present invention.

[0022] Figure 4 Schematic diagram of the structure of the hydrogen storage unit in the present invention.

[0023] Figure 5 It is a structural schematic diagram of the hydrogen combustion part in the present invention. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0027] Example 1, with reference to Figures 1 to 5 , which is the first embodiment of the present invention, provides a hydrogen storage device that can ensure that hydrogen is fully mixed with combustion air when injected into the combustion system, while also preventing fire risks caused by backfire, which includes:

[0028] The storage component 100 includes a high-pressure tank 101. An air inlet pipe 102 is provided on the side of the high-pressure tank 101. An air outlet pipe 103 is provided on the side of the air inlet pipe 102. The air inlet pipe 102 is connected to the high-pressure tank 101, and the air outlet pipe 103 is connected to the high-pressure tank 101. The hydrogen produced by the hydrogen production equipment enters the high-pressure tank 101 through the air inlet pipe 102 for storage. When the hydrogen needs to be burned, the hydrogen is discharged from the high-pressure tank 101 through the air outlet pipe 103. A solenoid valve 104 is provided on the side of the air outlet pipe 103. The solenoid valve 104 can control the opening and closing of the air outlet pipe 103; and

[0029] The gas outlet component 200 can fully mix the combustion-supporting air and hydrogen when discharging hydrogen to ensure the combustion effect. At the same time, the gas outlet component 200 can also prevent the occurrence of backfire; and

[0030] The air suction component 300 draws the combustion-supporting air into the air outlet component 200 .

[0031] Specifically, the hydrogen produced by the hydrogen production equipment enters the high-pressure tank 101 through the air inlet pipe 102 for storage. When the hydrogen needs to be burned, the hydrogen is discharged to the hydrogen combustion equipment through the gas outlet component 200. When discharging the hydrogen, the gas outlet component 200 will fully mix the combustion-supporting air and hydrogen to ensure the combustion effect. At the same time, the gas outlet component 200 can also prevent backfire.

[0032] Example 2, reference Figures 1 to 5 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a specific process of discharging hydrogen from the hydrogen storage device, wherein,

[0033] The air outlet component 200 includes an exhaust bowl mouth 201 arranged at the end of the air outlet pipe 103, and the outer wall of the exhaust bowl mouth 201 is provided with an air distribution pipe 202, and the side of the air distribution pipe 202 is provided with a spiral tube 203, and the spiral tube 203 is connected to the air distribution pipe 202. The end of the spiral tube 203 away from the air distribution pipe 202 penetrates the outer wall of the exhaust bowl mouth 201, and the exhaust bowl mouth 201 and the air distribution pipe 202 are connected through the spiral tube 203. There are multiple spiral tubes 203, and the spiral tubes 203 are arranged on the outer wall of the exhaust bowl mouth 201. The outer wall of the exhaust bowl mouth 201 is provided with a through groove 204, and the inner wall of the through groove 204 is in contact with the outer wall of the spiral tube 203.

[0034] Furthermore, the air extraction component 300 includes a motor 301 arranged at the bottom of the exhaust bowl 201, the motor 301 is connected to the high-pressure tank 101 through a connecting frame, the output shaft of the motor 301 is provided with an air extraction pump 302, the top of the air extraction pump 302 is provided with an air outlet pipe 303, the air outlet pipe 303 is connected to the air distribution pipe 202, the bottom of the air extraction pump 302 is provided with an air inlet pipe 304, the air inlet pipe 304 is connected to the air extraction pump 302, and the air extraction pump 302 is used to The air for auxiliary combustion is drawn into the air distribution pipe 202 through the air inlet pipe 304, and the combustion-supporting air enters the exhaust bowl 201 from the air distribution pipe 202 through multiple spiral tubes 203 and is discharged into the combustion device. At the same time, hydrogen enters the exhaust bowl 201 from the outlet pipe 103. The combustion-supporting air and hydrogen are mixed in the exhaust bowl 201. The combustion-supporting air enters the exhaust bowl 201 in a dispersed manner from the multiple spiral tubes 203, which can make the air and hydrogen mix evenly to ensure the combustion effect.

[0035] Specifically, when hydrogen needs to be burned, the exhaust pump 302 uses the air inlet pipe 304 to draw the air for auxiliary combustion into the air distribution pipe 202, and the combustion-supporting air enters the exhaust bowl 201 from the air distribution pipe 202 through multiple spiral tubes 203 and is discharged into the combustion device. At the same time, hydrogen enters the exhaust bowl 201 from the outlet pipe 103. The combustion-supporting air and hydrogen are mixed in the exhaust bowl 201 and then discharged into the combustion equipment. When the combustion is completed and there is no need to continue to discharge hydrogen, the solenoid valve 104 is used to close the outlet pipe 103. At this time, the motor 301 continues to work, and the combustion-supporting air continues to be filled into the exhaust bowl 201 to blow out the residual hydrogen inside, and then ignite. This can prevent backfire.

[0036] Example 3, reference Figures 1 to 5 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a peak-shaving system, which includes a hydrogen storage device of any one of the above items, and also includes: a hydrogen production unit 400, a hydrogen storage unit 500 and a hydrogen combustion unit 600.

[0037] Furthermore, the hydrogen production unit 400 includes a water storage device 401, a water electrolysis hydrogen production device 402, an oxygen storage device 403, a hydrogen storage device 404 and a combustion adjustment device 405. The water storage device 401 is connected to the water electrolysis hydrogen production device 402, the water electrolysis hydrogen production device 402 is connected to the oxygen storage device 403, the water electrolysis hydrogen production device 402 is connected to the hydrogen storage device 404, and the hydrogen storage device 404 is connected to the combustion adjustment device 405.

[0038] Furthermore, the hydrogen storage unit 500 includes an air intake device 501 , a dryer 502 and a compressor 503 . The air intake device 501 is connected to the hydrogen storage device 404 , the dryer 502 is connected to the air intake device 501 , the dryer 502 is connected to the compressor 503 , and the compressor 503 is connected to the storage component 100 .

[0039] Furthermore, the hydrogen combustion unit 600 includes a power grid mobilization system 601, a hydrogen burner 602, a gas-supporting device 603 and a combustion furnace 604. The hydrogen burner 602 is connected to the gas outlet component 200, the hydrogen burner 602 is connected to the gas-supporting device 603, and the hydrogen burner 602 is connected to the combustion furnace 604.

[0040] Specifically, when there is excess electricity from renewable energy sources such as wind power and photovoltaics, the excess electricity is used to electrolyze water to produce hydrogen, generating hydrogen and oxygen. The reaction is as follows: 2H2O → 2H2 + O2.

[0041] The generated hydrogen is stored in a high-pressure hydrogen storage tank through a gas collection system and is used to support combustion in thermal power units.

[0042] When the grid load is low and thermal power units are needed for peak load regulation, the stored hydrogen is transported to the thermal power unit's combustion system and mixed with pulverized coal for combustion, improving the unit's combustion efficiency and peak load regulation capabilities. The grid dispatching system dynamically adjusts the operating modes of water electrolysis hydrogen production and hydrogen-assisted combustion of thermal power units based on real-time load demand and renewable energy generation, achieving coordinated peak load regulation between renewable energy and thermal power units.

[0043] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0045] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A hydrogen storage device, characterized in that: include, A storage component (100) comprises a high-pressure tank (101), an air inlet pipe (102) is provided on the side of the high-pressure tank (101), an air outlet pipe (103) is provided on the side of the air inlet pipe (102), the air inlet pipe (102) is connected to the high-pressure tank (101), the air outlet pipe (103) is connected to the high-pressure tank (101), and a solenoid valve (104) is provided on the side of the air outlet pipe (103); and an air outlet member (200); and Air extraction component (300).

2. The hydrogen storage device according to claim 1, wherein: The air outlet component (200) comprises an exhaust bowl (201) arranged at the end of the exhaust pipe (103); an air distribution pipe (202) is arranged on the outer wall of the exhaust bowl (201); and a spiral tube (203) is arranged on the side of the air distribution pipe (202).

3. The hydrogen storage device according to claim 2, wherein: The spiral tube (203) is connected to the gas distribution pipe (202), and one end of the spiral tube (203) away from the gas distribution pipe (202) penetrates the outer wall of the exhaust bowl (201), and the exhaust bowl (201) is connected to the gas distribution pipe (202) through the spiral tube (203).

4. The hydrogen storage device according to claim 3, wherein: A through groove (204) is provided on the outer wall of the exhaust bowl (201), and the inner wall of the through groove (204) is in contact with the outer wall of the spiral tube (203).

5. The hydrogen storage device according to claim 4, characterized in that: The exhaust component (300) includes a motor (301) arranged at the bottom of the exhaust bowl (201), the motor (301) is connected to the high-pressure tank (101) via a connecting frame, an exhaust pump (302) is provided on the output shaft of the motor (301), and an air outlet pipe (303) is provided on the top of the exhaust pump (302).

6. The hydrogen storage device according to claim 5, characterized in that: The air outlet pipe (303) is connected to the air distribution pipe (202), and an air inlet pipe (304) is provided at the bottom of the air exhaust pump (302), and the air inlet pipe (304) is connected to the air exhaust pump (302).

7. A peak shaving system, characterized by: The slag crusher slag removal device comprises the slag crusher slag removal device according to any one of claims 1 to 6, and further comprises: a hydrogen production part (400), a hydrogen storage part (500) and a hydrogen combustion part (600).

8. The peak shaving system according to claim 7, wherein: The hydrogen production unit (400) includes a water storage device (401), a water electrolysis hydrogen production device (402), an oxygen storage device (403), a hydrogen storage device (404) and a combustion adjustment device (405). The water storage device (401) is connected to the water electrolysis hydrogen production device (402), the water electrolysis hydrogen production device (402) is connected to the oxygen storage device (403), the water electrolysis hydrogen production device (402) is connected to the hydrogen storage device (404), and the hydrogen storage device (404) is connected to the combustion adjustment device (405).

9. The peak shaving system according to claim 8, wherein: The hydrogen storage unit (500) includes an air intake device (501), a dryer (502) and a compressor (503), wherein the air intake device (501) is connected to the hydrogen storage device (404), the dryer (502) is connected to the air intake device (501), the dryer (502) is connected to the compressor (503), and the compressor (503) is connected to the storage component (100).

10. The peak shaving system according to claim 9, wherein: The hydrogen combustion unit (600) includes a power grid mobilization system (601), a hydrogen burner (602), a gas-supporting device (603) and a combustion furnace (604); the hydrogen burner (602) is connected to the gas outlet component (200), the hydrogen burner (602) is connected to the gas-supporting device (603), and the hydrogen burner (602) is connected to the combustion furnace (604).

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