CN219264273U - Thermal power generating unit depth peak regulating device based on hydrogen ignition technology - Google Patents
Thermal power generating unit depth peak regulating device based on hydrogen ignition technology Download PDFInfo
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Abstract
The utility model provides a thermal power unit deep peak regulation device based on a hydrogen ignition technology, relates to the technical field of thermal power generation, and mainly aims to improve the peak regulation capacity of a thermal power generator and ensure that the thermal power unit can still realize stable combustion and safe operation of the unit under a low-load condition. The deep peak regulation device of the thermal power generating unit based on the hydrogen ignition technology comprises an electrolytic hydrogen production unit, an oxygen storage unit, a hydrogen conveying unit, an oxygen conveying unit and a combustion unit; the electrolysis hydrogen production unit is connected with the power generation output end of the thermal power plant; hydrogen prepared by the electrolytic hydrogen production unit is stored in the hydrogen storage unit, and prepared oxygen is stored in the oxygen storage unit; the combustion unit is connected with the hydrogen storage unit and the oxygen storage unit through the hydrogen conveying unit and the oxygen conveying unit respectively and can ignite the hydrogen conveyed by the hydrogen conveying unit.
Description
Technical Field
The utility model relates to the technical field of thermal power generation, in particular to a thermal power unit deep peak regulating device based on a hydrogen ignition technology.
Background
Along with the continuous adjustment and deepening of the national energy structure, the installation scale of renewable energy in China is increased year by year, and at present, clean power supplies with seasonal and intermittent characteristics such as hydropower and wind power are continuously and rapidly developed. However, in recent years, renewable energy sources continue to develop rapidly, and serious problems of wind and light rejection occur in part of areas. For the coal-fired power generation unit, in order to better adapt to the deep peak regulation requirement and improve the safe reliability of the unit operation, the unit needs to be optimized and modified in a deeper way, and the problems of stable combustion, low SCR inlet smoke temperature and the like under low load need to be paid attention. In order to further mine the low-load stable combustion capacity of the boiler and realize the aim that a unit can deeply peak-adjust to 20% of rated load under the conventional coal quality, the conventional plasma ignition burner and the micro-oil ignition burner are improved at present, and the corresponding burner, the hot primary air mixing furnace smoke reformation, the hot primary air heater reformation, the dynamic separator and the like are modified in an auxiliary manner so as to meet the low-load stable combustion requirement.
The plasma ignition stable combustion technology is a combustion technology for realizing cold start and low-load stable combustion of a boiler by taking high-temperature plasma as an ignition source, and has the advantages of high requirements on coal quality due to limited energy of the ignition source of the plasma ignition body, unstable flame caused by fluctuation of the coal quality, oil feeding and combustion supporting requirements and the like. Meanwhile, the plasma ignition technology has the problems of arc interruption, shorter service life of the anode and the cathode in the operation process, periodic replacement, low burnout rate and the like due to poor coal quality, and the air preheater needs to be subjected to frequent soot blowing. The micro-oil combustion technology adopts a micro-oil gun as an ignition source to realize the cold start and low-load stable combustion technology of the boiler. The fuel oil output of the micro-oil ignition technology is adjustable, and the adaptability of coal types is wider than that of the plasma ignition technology. However, in the process of tiny-oil ignition, the problem of incomplete oil combustion exists, and great potential safety hazards exist for equipment such as electric dust removal.
In order to solve the problems, the requirements of unit depth peak regulation are met while the stable combustion effect of the boiler is achieved under the low load state, and a thermal power unit peak regulation device based on the hydrogen ignition technology needs to be developed.
Disclosure of Invention
The utility model aims to provide a thermal power generating unit deep peak shaving device based on a hydrogen ignition technology, which aims to solve the problems of stable combustion and energy consumption existing in the peak shaving device under the low-load condition in the prior art. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a thermal power generating unit deep peak regulation device based on a hydrogen ignition technology, which comprises an electrolytic hydrogen production unit, an oxygen storage unit, a hydrogen conveying unit, an oxygen conveying unit and a combustion unit;
the electrolytic hydrogen production unit is connected with the power generation output end of the thermal power plant; the hydrogen prepared by the electrolytic hydrogen production unit is stored in the hydrogen storage unit, and the prepared oxygen is stored in the oxygen storage unit;
the combustion unit is connected with the hydrogen storage unit and the oxygen storage unit through the hydrogen conveying unit and the oxygen conveying unit respectively, and the combustion unit can ignite the hydrogen conveyed to the combustion unit through the hydrogen conveying unit.
Through electrolysis hydrogen manufacturing unit, cooperation hydrogen storage unit, oxygen storage unit and hydrogen nozzle simultaneously, can realize the electric energy effective utilization to the valley period, can also be used for the steady burning under the boiler start-stop and the low load condition with hydrogen and the oxygen that obtains simultaneously, and wherein hydrogen can be used for the ignition, and oxygen can be used for combustion-supporting and improvement combustion strength. Compared with the traditional electric heat storage technology, the technology can realize peak shaving treatment of the unit, can help reduce fuel consumption, improve the utilization rate of fuel, can greatly reduce the operation cost of the unit, and achieves the purpose of low carbon emission reduction.
On the basis of the technical scheme, the utility model can be improved as follows.
As a further improvement of the utility model, the hydrogen storage unit comprises a hydrogen compressor sled, a sequence control disk, a hydrogen storage container, a purge gas purging component, an instrument wind system and a blow-down system;
and/or the oxygen storage unit comprises an oxygen compressor, a liquid oxygen tank, a gasifier, an instrument wind system and an emptying system.
The device is mutually matched, so that the hydrogen and oxygen can be stored and used, and compared with a traditional compressor, the hydrogen compressor pry has the advantages of being simple and convenient to install, convenient to move and relatively small in occupied area.
As a further improvement of the utility model, the combustion unit comprises a furnace, at which at least one hydrogen burner is arranged;
the hydrogen burner is connected with the hydrogen storage unit through the hydrogen conveying unit.
As a further improvement of the utility model, the burner is also arranged on the hearth, at least one hydrogen burner is connected with the hearth through the burner, and the hydrogen burner can ignite pulverized coal in the burner and form high-temperature pulverized coal flame in the burner.
As a further improvement of the utility model, the combustion unit further comprises a flue, and an afterburner is arranged at the flue and is connected with the hydrogen storage unit through the hydrogen conveying unit.
As a further improvement of the present utility model, the hydrogen delivery unit includes a first pipe and a second pipe, the first pipe connects the hydrogen storage unit and the hydrogen burner, and the second pipe connects the hydrogen storage unit and the afterburner;
the oxygen delivery unit connects the oxygen storage unit and all of the burners.
The hydrogen and oxygen can be delivered to the desired location through the various lines described above.
As a further development of the utility model, at least one hydrogen burner is arranged above the burner, which burner can be connected directly to the furnace.
The afterburner positioned on the flue can help to increase the temperature of the flue gas and is beneficial to the subsequent flue gas treatment process.
As a further improvement of the utility model, the electrolytic hydrogen production device also comprises a control unit, wherein the control unit can control the electrolytic hydrogen production unit according to a peak regulation task; the control unit comprises a data acquisition component, a judging component and a control component; the data acquisition component receives load data and/or time of the thermal power generating unit, and the judgment component compares the current load data and/or current time of the thermal power generating unit with preset peak regulation load data and/or peak regulation time to judge whether the load meets the input peak regulation task requirement; the control component sends an instruction to the electrolytic hydrogen production unit, and the electrolytic hydrogen production unit can execute one action of starting, stopping, accelerating or slowing down the electrolytic hydrogen production after receiving the instruction.
The control unit is electrically connected with the units and can control the control unit to start according to preset conditions and/or time, so that intelligent peak shaving is realized.
The utility model also provides a thermal power generating unit depth peak shaving method based on the hydrogen ignition technology, which comprises the following steps:
starting an electrolytic hydrogen production unit, wherein hydrogen and oxygen produced by the electrolytic hydrogen production unit are respectively stored in the hydrogen storage unit and the oxygen storage unit;
when necessary, hydrogen and oxygen to be stored in the hydrogen storage unit and the oxygen storage unit are released to the combustion unit to be combusted.
The electrolytic hydrogen production can utilize the electric energy in the electricity consumption valley period and store the electric energy in hydrogen and oxygen; the mode of releasing energy by utilizing the combustion of hydrogen and oxygen not only can help to reduce direct consumption of fuel, but also can help to realize autonomous peak regulation of the thermal power unit, helps to reduce the operation cost of the thermal power unit, and simultaneously reduces carbon emission.
As a further improvement of the utility model, the method comprises the following steps: presetting peak load regulation data and/or peak regulation time of a thermal power generating unit; judging the obtained thermal power generating unit data, judging whether the obtained thermal power generating unit current load data and the current time meet the peak shaving requirement, and if the current load data is higher than the preset peak shaving load data, controlling the electrolytic hydrogen generating unit to start or improving the working efficiency; if the current load data is the same as the preset peak shaving load data, the working state of the electrolytic hydrogen production unit is not changed; and if the current load data is lower than the preset peak shaving load data, controlling the electrolytic hydrogen production unit to stop or reduce the working efficiency.
At the moment, the electrolytic hydrogen production unit and other matched equipment work rates can be switched on and switched off through the corresponding control unit, so that the peak regulation function is realized more flexibly.
Compared with the prior art, the thermal power unit depth peak regulation device based on the hydrogen ignition technology has the advantages of high ignition energy, wide coal adaptability, high burnout rate and no oil pollution, can realize stable combustion and safe operation of the unit under the condition of low load, and does not influence normal use of an SCR (selective catalytic reduction) component and a dust removal structure; in addition, the hydrogen ignition technology does not need to convert electric energy generated by coal combustion into heat energy to be stored, so that the consumption of combustion is directly reduced, meanwhile, the operation cost is greatly reduced, the emission of pollutants is effectively reduced, and the improvement of the quality of the atmospheric environment around a power plant is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a first embodiment of a thermal power generating unit depth peak shaving device based on a hydrogen ignition technology;
FIG. 2 is a schematic structural diagram of a second embodiment of a thermal power generating unit depth peak shaving device based on a hydrogen ignition technology;
FIG. 3 is a schematic structural diagram of a third embodiment of a thermal power generating unit depth peak shaving device based on a hydrogen ignition technology;
fig. 4 is a schematic structural diagram of a fourth embodiment of a thermal power generating unit depth peak shaving device based on a hydrogen ignition technology.
In the figure: 1. an electrolytic hydrogen production unit; 2. an oxygen storage unit; 3. a hydrogen storage unit; 4. a hydrogen burner; 5. a burner; 6. a furnace; 7. afterburning burner; 8. a flue; 9. an SCR denitrification assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
FIG. 1 is a schematic structural diagram of a first embodiment of a thermal power generating unit depth peak shaving device based on a hydrogen ignition technology; it can be seen that the device mainly comprises an electrolytic hydrogen production unit, an oxygen storage unit, a hydrogen storage unit, a hearth and a flue, wherein one side of the hearth, which is close to the hydrogen storage unit, is provided with a hydrogen burner and burners, the number of the burners is at least two, and one or more burners are connected with the hydrogen burner.
FIG. 2 is a schematic structural diagram of a second embodiment of a thermal power generating unit depth peak shaving device based on a hydrogen ignition technology; compared with fig. 1, the device comprises two hydrogen burners, wherein one hydrogen burner is connected with the hearth through the burner, and the other hydrogen burner is directly arranged on the hearth. The two hydrogen burners are connected with the hydrogen storage unit through a first pipeline.
FIG. 3 is a schematic structural diagram of a third embodiment of a thermal power generating unit depth peak shaving device based on a hydrogen ignition technology; compared with FIG. 1, the middle part of the flue is provided with the afterburning burner, and the afterburning burner is arranged in front of the SCR denitrification device.
FIG. 4 is a schematic structural diagram of a fourth embodiment of a thermal power generating unit depth peak shaver based on hydrogen ignition technology; compared with FIG. 2, the middle part of the flue is provided with an afterburner nozzle which is arranged in front of the SCR denitrification device.
The technical scheme of the utility model is specifically described below with reference to the accompanying drawings.
The utility model provides a thermal power generating unit deep peak regulation device based on a hydrogen ignition technology, which comprises an electrolytic hydrogen production unit 1, an oxygen storage unit 2, a hydrogen storage unit 3, a hydrogen conveying unit, an oxygen conveying unit and a combustion unit; the electrolysis hydrogen production unit 1 is connected with the power generation output end of the thermal power plant and electrolyzes water under the action of electric power to prepare hydrogen and oxygen; the hydrogen prepared by the electrolytic hydrogen production unit 1 is stored in the hydrogen storage unit 3, and the prepared oxygen is stored in the oxygen storage unit 2;
the combustion unit can be connected with the hydrogen storage unit 3 and the oxygen storage unit 2 through a hydrogen conveying unit and an oxygen conveying unit respectively, wherein the hydrogen conveying unit and the oxygen conveying unit are of pipeline structures. The combustion unit is capable of igniting the hydrogen gas delivered to the combustion unit via the hydrogen delivery unit and the oxygen delivery unit described above.
Through electrolysis hydrogen manufacturing unit 1, cooperation hydrogen storage unit 3, oxygen storage unit 2 and hydrogen nozzle 4 simultaneously can realize the electric energy effective utilization to the low valley period, can also be used for the steady burning under the low load condition with hydrogen and the oxygen that obtains of preparation simultaneously, and wherein hydrogen can be used for the ignition, and oxygen can be used for combustion-supporting and improvement combustion strength. Compared with the traditional electric heat storage technology, the technology can realize peak shaving treatment of the unit, can help reduce fuel consumption, improve the utilization rate of fuel, can greatly reduce the operation cost of the unit, and achieves the purpose of low carbon emission reduction.
It should be noted that, in order to achieve a better energy-saving effect, the electrolytic hydrogen production unit 1 may be started to perform electrolytic hydrogen production treatment at the time of valley electricity.
Specifically, the device can be provided with a power supply unit, the input end of the power supply unit is connected with the power generation output of the thermal power plant, and the output end of the power supply unit is connected with the power supply inlet of the electrolytic hydrogen production unit 1 at the moment and is used for supplying power to the electrolytic hydrogen production unit 1.
As an alternative embodiment, the hydrogen storage unit 3 comprises a hydrogen compressor skid, a sequence control panel, a hydrogen storage container and purge gas purge assembly, an instrument wind system, and a vent system; and/or the oxygen storage unit 2 comprises an oxygen compressor, a liquid oxygen tank, a gasifier, an instrument wind system, a venting system.
The device is mutually matched, so that the hydrogen and oxygen can be stored and used, and compared with a traditional compressor, the hydrogen compressor pry has the advantages of being simple and convenient to install, convenient to move and relatively small in occupied area.
The purge gas purge assembly may be used to purge the corresponding hydrogen storage unit 3 or oxygen storage unit 2. The purge gas may be an inert gas. In addition, the sequence control panel, the instrument wind system, the emptying system and the like are all of the prior art, and are not described herein.
As an alternative embodiment, the above-mentioned combustion unit includes a furnace 6 and hydrogen burners 4 provided on the furnace 6, and the number of hydrogen burners 4 is at least one. The hydrogen burner 4 can be connected to the hydrogen storage unit 3 via a hydrogen delivery unit.
In addition, the burner 5 is also arranged on the hearth 6, the hydrogen burner 4 can be connected with the hearth through the burner 5, and at the moment, after the hydrogen burner 4 is started, coal dust in the burner 5 can be ignited, and high-temperature coal dust flame is formed in the burner 5.
As an alternative embodiment, at least one oxygen combustion-supporting nozzle is also arranged above the burner 5 at the hearth 6; the oxygen combustion-supporting nozzle is connected with the oxygen storage unit 2 through the oxygen conveying unit, and oxygen is beneficial to strengthening pulverized coal combustion.
The combustion unit further comprises a flue 8, and as an alternative embodiment, an afterburner 7 is arranged at the flue 8; the afterburner 7 is connected to the hydrogen storage unit 3 via a hydrogen delivery unit.
Under the low-load operation condition, the burner 5 provided with the hydrogen burner 4 improves the low-load stable combustion capability of the boiler and improves the flame combustion intensity in the hearth 6; the hydrogen burner 4 can help to improve the temperature of the flue gas at the outlet of the hearth 6, and can also improve the running efficiency of the unit and ensure the safe running of the unit; and the afterburner 7 positioned at the flue 8 can increase the temperature of the flue gas in a combustion mode, so that the subsequent purification treatment of the flue gas is facilitated.
Example 1:
the utility model provides a thermal power generating unit deep peak regulation device based on a hydrogen ignition technology, which comprises an electrolytic hydrogen production unit 1, an oxygen storage unit 2, a hydrogen storage unit 3, a hydrogen conveying unit, an oxygen conveying unit and a combustion unit; the electrolysis hydrogen production unit 1 is connected with the power generation output end of the thermal power plant and electrolyzes water under the action of electric power to prepare hydrogen and oxygen; the hydrogen prepared by the electrolytic hydrogen production unit 1 is stored in the hydrogen storage unit 3, and the prepared oxygen is stored in the oxygen storage unit 2;
the combustion unit can be connected with the hydrogen storage unit 3 and the oxygen storage unit 2 through a hydrogen conveying unit and an oxygen conveying unit respectively, wherein the hydrogen conveying unit and the oxygen conveying unit are of pipeline structures. The combustion unit is capable of igniting the hydrogen gas delivered to the combustion unit via the hydrogen delivery unit and the oxygen delivery unit described above.
The combustion unit comprises a hearth 6 and a flue 8, wherein two burners 5 are arranged at the hearth 6, and a hydrogen burner 4 is arranged on one burner 5, as shown in fig. 1. The above-mentioned burner 5 can be connected with the oxygen storage unit 2 through the oxygen delivery unit, and the burner 5 equipped with the hydrogen burner 4 can be connected with the hydrogen delivery unit and the hydrogen storage unit 3 through the hydrogen burner 4.
The hydrogen and oxygen can be delivered to the desired location through the two different lines. The hydrogen burner 4 is located in the burner 5, and the pulverized coal located in the burner 5 can be ignited by igniting hydrogen and generating high-temperature flame, and the high-temperature pulverized coal flame is formed at the outlet of the burner 5.
In addition, at least one oxygen combustion-supporting nozzle is arranged above the burner 5 at the hearth 6; the oxygen combustion-supporting nozzle is connected with the oxygen storage unit 2 through the oxygen conveying unit. The oxygen sprayed from the combustion-supporting nozzle is favorable for strengthening the combustion of pulverized coal. The oxygen combustion-supporting nozzle diagram is not drawn.
The structure of the hydrogen burner 4 can be a known structure, and the published ignition burner can be directly used in the technical scheme or used after non-creative improvement, and the structure of the hydrogen burner 4 is not limited.
As an alternative embodiment, the system further comprises a control unit, and the control unit can control the working state of the electrolytic hydrogen production unit 1 according to the peak shaving task: the control unit comprises a data acquisition component, a judging component and a control component; the data acquisition component receives load data and/or time of the thermal power generating unit, and the judging component compares the current load data and/or current time of the thermal power generating unit with preset peak regulation load data and/or peak regulation time to judge whether the load meets the input peak regulation task requirement or not; the control component sends an instruction to the electrolytic hydrogen production unit 1, and the electrolytic hydrogen production unit 1 can execute one action of starting, stopping, accelerating or slowing down the electrolytic hydrogen production speed after receiving the instruction.
The control unit is electrically connected with the units and can control the control unit to start according to preset conditions and/or time, so that intelligent peak shaving is realized.
Example 2:
the present embodiment 2 is different from embodiment 1 in that: at least one hydrogen burner 4 can now be connected directly to the furnace 6, as shown in fig. 2, wherein the hydrogen burner 4 directly connected to the furnace 6 is located above the burner 5.
The first pipeline in the hydrogen conveying unit is normally communicated with all the hydrogen burners 4 and the hydrogen storage unit 3; the oxygen delivery unit normally communicates the oxygen storage unit 2 with the two burners 5.
At this time, the two burners 5 are connected to an oxygen delivery unit, and the hydrogen burners 4 are connected to a hydrogen delivery unit.
The added hydrogen burner 4 is positioned above the burner 5, can help to improve the temperature of the flue gas at the outlet of the hearth 6, can effectively improve the working efficiency of the unit in a low-load state, and ensures the safe and stable operation of the unit.
Example 3:
this embodiment 3 is different from embodiment 1 in that: at this point, the flue 8 is provided with an afterburner 7, as shown in fig. 3, at which point the combustion unit comprises simultaneously a hydrogen burner 4, a burner 5 and an afterburner 7.
Specifically, for convenience of operation, the hydrogen delivery unit includes a first pipeline and a second pipeline, as shown in fig. 3, the first pipeline is connected with the hydrogen storage unit 3 and the hydrogen burner 4, the second pipeline is connected with the hydrogen storage unit 3 and the afterburner 7, and the oxygen delivery unit is connected with the oxygen storage unit 2 and the burner 5.
The afterburner nozzle 7 positioned on the flue 8 can help to raise the flue gas temperature and facilitate the subsequent flue gas treatment process.
In general, the end of the flue 8 remote from the furnace 6 is provided with an SCR denitrification assembly 9, and the afterburner 7 is located at the inlet of the SCR denitrification assembly 9.
Example 4:
the present embodiment 4 is different from embodiment 2 in that: as shown in fig. 4, in comparison with example 2, the combustion unit is also provided with an afterburner 7 on the flue 8, which afterburner 7 is connected to the hydrogen storage unit 3 via a second line.
Example 5:
the utility model also provides a thermal power generating unit depth peak shaving method based on the hydrogen ignition technology, which comprises the following steps:
starting an electrolytic hydrogen production unit 1, wherein hydrogen and oxygen produced by the electrolytic hydrogen production unit 1 are respectively stored in a hydrogen storage unit 3 and an oxygen storage unit 2;
when necessary, the hydrogen and oxygen to be stored in the hydrogen storage unit 3 and the oxygen storage unit 2 are released to the combustion unit to be burned.
The electrolytic hydrogen production can utilize the electric energy in the electricity consumption valley period and store the electric energy in hydrogen and oxygen; the mode of releasing energy by utilizing the combustion of hydrogen and oxygen not only can help to reduce direct consumption of fuel, but also can help to realize autonomous peak regulation of the thermal power unit, helps to reduce the operation cost of the thermal power unit, and simultaneously reduces carbon emission.
As an alternative embodiment, the method comprises the following steps: presetting peak load regulation data and/or peak regulation time of a thermal power generating unit; judging the obtained thermal power generating unit data, judging whether the obtained current load data and the current time of the thermal power generating unit meet the peak shaving requirement, and if the current load data is higher than the preset peak shaving load data, controlling the electrolytic hydrogen generating unit 1 to start or improve the working efficiency (for example, the electrolytic hydrogen generating unit 1 can be controlled to send out an instruction for starting hydrogen generation or accelerating hydrogen generation rate, and the electrolytic hydrogen generating unit 1 executes corresponding actions after receiving corresponding instructions); if the current load data is the same as the preset peak shaving load data, the working state of the electrolytic hydrogen production unit 1 is not changed (namely, no instruction is sent out, and the electrolytic hydrogen production unit 1 continues to execute the current action); if the current load data is lower than the preset peak shaving load data, the electrolytic hydrogen production unit 1 is controlled to stop or reduce the working efficiency (for example, the electrolytic hydrogen production unit 1 can be controlled to send out an instruction for stopping hydrogen production or slowing down the hydrogen production rate, and the electrolytic hydrogen production unit 1 executes corresponding actions after receiving corresponding instructions).
At this time, the electrolytic hydrogen production unit 1 and other matched equipment can be switched on and switched off by the corresponding control unit, so that the peak regulation function is realized more flexibly.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. The deep peak regulation device of the thermal power generating unit based on the hydrogen ignition technology is characterized by comprising an electrolytic hydrogen production unit, an oxygen storage unit, a hydrogen conveying unit, an oxygen conveying unit and a combustion unit;
the electrolytic hydrogen production unit is connected with the power generation output end of the thermal power plant; the hydrogen prepared by the electrolytic hydrogen production unit is stored in the hydrogen storage unit, and the prepared oxygen is stored in the oxygen storage unit;
the combustion unit is connected with the hydrogen storage unit and the oxygen storage unit through the hydrogen conveying unit and the oxygen conveying unit respectively, and the combustion unit can ignite the hydrogen conveyed to the combustion unit through the hydrogen conveying unit.
2. The thermal power generating unit depth peak shaving device based on the hydrogen ignition technology according to claim 1, wherein the hydrogen storage unit comprises a hydrogen compressor sled, a sequence control panel, a hydrogen storage container, a purge gas purging component, an instrument wind system and a blow-down system;
and/or the oxygen storage unit comprises an oxygen compressor, a liquid oxygen tank, a gasifier, an instrument wind system and an emptying system.
3. The thermal power generating unit depth peaking device based on the hydrogen ignition technology according to claim 1, wherein the combustion unit comprises a hearth, and at least one hydrogen burner is arranged at the hearth;
the hydrogen burner is connected with the hydrogen storage unit through the hydrogen conveying unit.
4. The deep peak regulating device of the thermal power generating unit based on the hydrogen ignition technology according to claim 3, wherein a burner is further arranged on the hearth, at least one hydrogen burner is connected with the hearth through the burner, and the hydrogen burner can ignite pulverized coal in the burner and form high-temperature pulverized coal flame in the burner.
5. The thermal power generating unit depth peak shaver based on the hydrogen ignition technology according to claim 4, wherein the combustion unit further comprises a flue, and an afterburner is arranged at the flue and is connected with the hydrogen storage unit through the hydrogen conveying unit.
6. The thermal power generating unit depth peaking device based on the hydrogen ignition technology according to claim 5, wherein the hydrogen conveying unit comprises a first pipeline and a second pipeline, the first pipeline is connected with the hydrogen storage unit and the hydrogen burner, and the second pipeline is connected with the hydrogen storage unit and the afterburner;
the oxygen delivery unit connects the oxygen storage unit and all of the burners.
7. The thermal power generating unit depth peak shaver based on the hydrogen ignition technology according to claim 4, wherein at least one hydrogen burner capable of being directly connected with the hearth is arranged above the burner.
8. The thermal power generating unit depth peak shaver based on the hydrogen ignition technology according to claim 1, further comprising a control unit, wherein the control unit can control the electrolytic hydrogen generating unit according to the peak shaver task;
the control unit comprises a data acquisition component, a judging component and a control component;
the data acquisition component receives load data and/or time of the thermal power generating unit, and the judgment component compares the current load data and/or current time of the thermal power generating unit with preset peak regulation load data and/or peak regulation time to judge whether the load meets the input peak regulation task requirement; the control component sends an instruction to the electrolytic hydrogen production unit, and the electrolytic hydrogen production unit can execute one action of starting, stopping, accelerating or slowing down the electrolytic hydrogen production after receiving the instruction.
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| CN202222524596.8U CN219264273U (en) | 2022-09-23 | 2022-09-23 | Thermal power generating unit depth peak regulating device based on hydrogen ignition technology |
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