CN218237082U - Novel comprehensive nitrogen utilization system for gas turbine power plant - Google Patents
Novel comprehensive nitrogen utilization system for gas turbine power plant Download PDFInfo
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- CN218237082U CN218237082U CN202222686143.5U CN202222686143U CN218237082U CN 218237082 U CN218237082 U CN 218237082U CN 202222686143 U CN202222686143 U CN 202222686143U CN 218237082 U CN218237082 U CN 218237082U
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Abstract
The utility model relates to a novel gas turbine power plant nitrogen gas comprehensive utilization system, including nitrogen gas application module, the system isolation valve, nitrogen cylinder group, the end intercommunication of giving vent to anger of nitrogen cylinder group has the nitrogen gas busbar, the inlet end and the nitrogen cylinder group intercommunication of nitrogen gas busbar, the inlet end of nitrogen gas busbar still communicates there is online nitrogen generator, the end of giving vent to anger of online nitrogen generator communicates with the inlet end of nitrogen gas busbar, guarantee the continuation of nitrogen gas supply stable, install respectively on the nitrogen gas busbar inlet end with nitrogen cylinder group complex cylinder group isolation valve and with online nitrogen generator complex nitrogen generation isolation valve, the end of giving vent to anger of nitrogen gas busbar connects the main pipe inlet end of nitrogen supply of whole factory, the main pipe of nitrogen supply of whole factory gives vent to anger the end and communicates nitrogen gas application module through dismantling metal collapsible hose, can dismantle and set up system isolation valve on the metal collapsible tube, guarantee safe and reliable ground supply nitrogen gas. The utility model discloses a gas turbine power plant nitrogen gas comprehensive utilization, whole factory's centralized gas supply, nitrogen gas application module is as required gas.
Description
Technical Field
The utility model belongs to the combustion engine power plant nitrogen gas utilizes the field, especially relates to a novel combustion engine power plant nitrogen gas utilizes system multipurposely.
Background
The nitrogen is mainly applied to the gas combined cycle unit, namely, the nitrogen is used for maintaining a waste heat boiler, replacing and maintaining a natural gas system, and replacing a hydrogen pipeline (not including a generator).
The natural gas generator set has the characteristics of environmental protection and high starting and stopping speed, and a common power grid company takes the natural gas generator set as a peak regulation set. The annual starting and stopping times of the gas turbine unit are more, and when the load of a power grid is lower, the gas turbine unit is in a standby state for a longer time. When the unit is in a shutdown state for a long time, a large amount of air enters the waste heat boiler drum and related pipelines, and oxidation of metal wall surfaces of the waste heat boiler drum and corrosion of the pipelines can be caused by oxygen in the air and a humid environment in the system. The corrosion of the steam drum and the inner wall of the pipeline of the waste heat boiler causes the extension of the startup time, the water quality is unqualified for a long time after the unit is started, the wall of the boiler is thinned, the service life is reduced rapidly, the strength of the pipeline of the boiler is possibly reduced, the severe accident of pipe explosion of a heating surface is generated, and great potential safety hazard is brought to the operation of a power plant.
Boiler shutdown maintenance is always a difficult problem in thermal equipment maintenance, and nitrogen maintenance slows down corrosion by isolating oxygen, and the heating surface maintenance effect is outstanding and more adoption is obtained.
The natural gas pipeline and the functional modules form a pressure regulating station, a front module, a gas module and other natural gas systems, and the natural gas systems are important equipment of a natural gas generator set. The hydrogen pipeline is also flammable and explosive gas, the hydrogen supply station is arranged at a position far away from the main plant in management, and the flammable and explosive gas in the system needs to be replaced by safe and environment-friendly nitrogen before work in order to realize the hundred-percent safety target of the system in normal daily maintenance and regular work of the hydrogen supply station pipeline.
In conclusion, nitrogen is applied more in a gas turbine power plant, and the related system is wider, and the current nitrogen system scheme adopts that at most, the nitrogen is supplied independently in different modules and different areas, and the nitrogen is supplied as a nitrogen supply source by bottled nitrogen and needs manpower to be carried, so that the maintenance efficiency is low, the operation process is complex, the nitrogen is not easy to implement, and the like, and the power plant needs a large amount of material resources and manpower investment.
SUMMERY OF THE UTILITY MODEL
Not enough to current nitrogen gas replacement system, the utility model aims at providing a reasonable in design, safe and reliable's novel gas turbine power plant nitrogen gas integrated utilization system realizes the concentrated supply of whole factory nitrogen gas system, and nitrogen gas application module air feed as required cancels and divides the independent supply of module multizone.
In order to solve the technical problem, the utility model discloses a following technical scheme be a novel gas turbine power plant nitrogen gas integrated utilization system, including nitrogen gas application module, the system isolation valve, nitrogen cylinder group give vent to anger the end and is connected with nitrogen gas busbar inlet end, nitrogen gas busbar inlet end still gives vent to anger the end with online nitrogen generator and is connected, install the system isolation valve that closes with nitrogen cylinder group on the nitrogen gas busbar inlet end and with online nitrogen generator complex system isolation valve, nitrogen gas busbar discharge gas end is connected the main pipe inlet end of supplying nitrogen of whole factory, the main pipe of supplying nitrogen of whole factory is given vent to anger the end and is passed through dismantling metal collapsible tube and system isolation valve intercommunication nitrogen gas application module inlet end.
Preferably, the novel comprehensive nitrogen utilization system for the gas turbine power plant further comprises a nitrogen gas storage tank, the online nitrogen generator is formed by connecting an online nitrogen generator A and an online nitrogen generator B in parallel, and the air outlet end of the online nitrogen generator is connected with the nitrogen gas storage tank.
Preferably, the novel comprehensive nitrogen utilization system for the gas turbine power plant adopts a multi-gas-source supply mode, an online nitrogen making machine is used, a nitrogen bus bar is reserved, and a nitrogen cylinder group is used as a standby gas source for nitrogen supply.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect, and this neotype gas turbine power plant nitrogen gas integrated utilization system has realized gas turbine power plant nitrogen gas integrated utilization, whole factory's centralized gas supply, and nitrogen gas application module is as required to use gas. The nitrogen bus-bar and the online nitrogen making machine are arranged in a unified place, so that centralized management is realized, and the low-efficiency operation mode of substation type gas supply is cancelled. Meanwhile, the nitrogen supply adopts a multi-gas source mode, and the nitrogen supply device not only has an online nitrogen making machine, but also has a nitrogen bottle group as a standby gas source for nitrogen supply. The air supply source ensures the redundant design, ensures the reliability of the system and reduces the possibility that the fault of the nitrogen system affects the normal operation and the scheduled work of the unit. The nitrogen cylinder group and the nitrogen collecting pipe are connected by adopting a flexible metal hose, and the convenience of the disassembly and the assembly of the nitrogen cylinder is fully considered.
The utility model discloses an online nitrogen generator guarantees that one is used one and is equipped with two machines and normally work as main equipment, and the nitrogen gas of making simultaneously is stored to the nitrogen gas holder in, guarantees that the unit can air feed fast under emergency. The online nitrogen making machine is also connected with the busbar by adopting a flexible metal hose, so that the online nitrogen making machine is convenient to disassemble, maintain and maintain. The nitrogen gas busbar is divided into two sections and is isolated by a system isolation valve. When an online nitrogen making machine is adopted, a nitrogen cylinder group needs to be isolated; and vice versa. In particular, when the gas is used by multiple modules, the nitrogen buses at two ends can be used for supplying gas simultaneously. The nitrogen application module can automatically supplement nitrogen when using nitrogen, and when the nitrogen is not needed, the nitrogen system can be reliably isolated from the gas supply system and is provided with a physical isolation section. The nitrogen application module is connected with a nitrogen supply main pipe of a whole plant by adopting a system isolation valve and a detachable metal hose, and the metal hose can be detached when necessary to realize physical isolation of the module. In particular, the function can realize the physical isolation of the flammable and explosive gas module and the nitrogen module in the natural gas and hydrogen module.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a nitrogen comprehensive utilization system of a novel gas turbine power plant;
FIG. 2 is a schematic view of an on-line nitrogen generator;
in the above figures, 1, a nitrogen gas application module; 2. a system isolation valve; 3. a detachable metal hose; 4. a nitrogen supply main pipe of the whole plant; 5. a nitrogen bus; 6. a flexible metal hose; 7. a nitrogen gas cylinder group; 8. an online nitrogen making machine; 9. a, an online nitrogen making machine; 10. b, an online nitrogen making machine; 11. and a nitrogen storage tank.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.
Embodiment 1, as shown in fig. 1 and fig. 2, a novel comprehensive nitrogen utilization system for a combustion engine power plant includes a nitrogen application module 1, a system isolation valve 2, and a nitrogen cylinder group 7, where the nitrogen application module 1 includes a waste heat boiler, a natural gas system, and a hydrogen supply station, and certainly, the waste heat boiler, the natural gas system, and the hydrogen supply station may be multiple, and in this embodiment, a unit of nitrogen required to be used by the combustion engine power plant is expressed by using only the nitrogen application module 1.
The system isolation valve 2 is a conventional control valve, and its main purpose is to block the nitrogen supply to the nitrogen application module 1.
The nitrogen gas cylinder group 7 is to bundle the individual nitrogen gas cylinders together. The main purpose is to conveniently carry the nitrogen cylinder and save manpower resources.
In order to improve the work efficiency and the production safety, the end intercommunication of giving vent to anger of nitrogen gas bottle group 7 has nitrogen gas busbar 5 in this embodiment, and the inlet end and the nitrogen gas bottle group 7 intercommunication of nitrogen gas busbar 5 are concentrated together with the nitrogen gas bottle of single air feed, realize concentrated air feed, reduce the change number of times of nitrogen gas bottle, improve the stability of nitrogen gas supply.
In order to reduce the replacement of the nitrogen cylinder group 7, in this embodiment, a multi-gas-source supply manner is adopted, specifically, the gas inlet end of the nitrogen bus bar 5 is respectively communicated with the gas outlet ends of the online nitrogen making machine 8 and the nitrogen cylinder group 7, and the nitrogen cylinder group 7 is used as a standby gas source for supplying nitrogen gas. The air supply source ensures the redundant design, ensures the reliability of the system and reduces the possibility that the fault of the nitrogen system affects the normal operation and the scheduled work of the unit. The end of giving vent to anger at nitrogen gas busbar 5 connects the main pipe 4 inlet end of supplying nitrogen of whole factory, and nitrogen gas gets into the main pipe of supplying nitrogen of whole factory, then supplies nitrogen gas to nitrogen gas application module 1 through the main pipe of supplying nitrogen of whole factory, and nitrogen gas application module supplies the main pipe of nitrogen to be the parallel structure setting at the whole factory.
In order to solve the problem that the normal production progress of the nitrogen application module 1 is influenced when nitrogen enters the nitrogen application module 1 during normal work, when the nitrogen is not needed, the nitrogen application module 1 can be isolated from a plant nitrogen supply main pipe 4 through a system isolation valve 2; under necessary circumstances, the detachable metal hose 3 can be isolated from the nitrogen supply main pipe 4 of the whole plant, so that the physical isolation of the flammable and explosive gas and the nitrogen module is realized.
In order to solve the problem that the nitrogen making speed of the online nitrogen making machine 8 cannot meet the replacement requirement in the replacement process, in the present embodiment, a cylinder group isolation valve matched with the nitrogen cylinder group 7 and a nitrogen making isolation valve matched with the online nitrogen making machine 8 are respectively installed on the air inlet end of the nitrogen bus bar 5, at the initial stage of the replacement process, the cylinder group isolation valve matched with the nitrogen cylinder group 7 is in an open state to stably supply air for the nitrogen application module 1, and after the online nitrogen making machine 8 works stably, the cylinder group isolation valve matched with the nitrogen cylinder group 7 is in a closed state. In particular, when multiple module supplies are encountered, the nitrogen bus 5 may be used to supply gas simultaneously.
Thereby it is lower in order to solve the lower normal production progress that influences the power plant of replacement initial stage nitrogen gas content and online nitrogen generator 8 supplies the unstable problem of nitrogen pressure, still be provided with nitrogen gas holder 11 between online nitrogen generator 8 and nitrogen gas busbar 5 in this embodiment, at the replacement initial stage, online nitrogen generator 8 just begins to work, nitrogen gas supply volume is not enough to satisfy the replacement requirement yet, the nitrogen gas that will use nitrogen gas holder 11 carries out the replacement, when online nitrogen generator 8 gets into stable operating condition, during nitrogen gas lasts to get into nitrogen gas holder 11, give vent to anger through nitrogen gas holder 11 and hold in getting into nitrogen gas busbar 5, reach the purpose of stable nitrogen gas pressure.
In order to solve the problem that the online nitrogen making machine 8 fails during the use process to affect the stability of the replacement process, in the embodiment, the online nitrogen making machine 8 comprises an online nitrogen making machine A9 and an online nitrogen making machine B10 which are arranged in parallel, the online nitrogen making machine A9 serves as main equipment to ensure that two pieces of equipment work normally, and the made nitrogen is stored in a nitrogen storage tank 11 to ensure that the unit can supply air quickly in an emergency.
In order to solve a large amount of manpower resources of power plant's extravagant transport nitrogen cylinder group 7, this embodiment sets up nitrogen gas busbar 5 and online nitrogen generator 8 in unified place, realizes centralized management, cancels the low efficiency operational mode of substation formula air feed.
In order to solve the big problem of the nitrogen cylinder group's change degree of difficulty, nitrogen cylinder group 7 adopts flexible metal collapsible tube 6 to be connected with nitrogen gas busbar 5 in this embodiment, has fully considered the convenience of nitrogen cylinder's dismouting.
In order to solve online nitrogen generator 8 maintenance problem, online nitrogen generator 8 adopts flexible metal collapsible tube 6 to link to each other with nitrogen gas busbar 5 in this embodiment, makes things convenient for online nitrogen generator to dismantle and maintain the maintenance.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a novel gas turbine power plant nitrogen gas comprehensive utilization system, includes nitrogen gas application module, system isolation valve, nitrogen cylinder group, its characterized in that: the end intercommunication of giving vent to anger of nitrogen gas bottle group has the nitrogen gas busbar, the inlet end and the nitrogen gas bottle group intercommunication of nitrogen gas busbar, the inlet end of nitrogen gas busbar still communicates has online nitrogen making machine, the end of giving vent to anger of online nitrogen making machine communicates with the inlet end of nitrogen gas busbar, install respectively on the nitrogen gas busbar inlet end with nitrogen gas bottle group complex bottle group isolation valve and with online nitrogen making machine complex nitrogen making isolation valve, the end of giving vent to anger of nitrogen gas busbar connects the female pipe inlet end of whole factory confession nitrogen, the female pipe of factory confession nitrogen is given vent to anger all and is held through dismantling metal collapsible tube intercommunication nitrogen gas application module, can dismantle the last system isolation valve that is provided with of metal collapsible tube.
2. The novel comprehensive nitrogen utilization system for the gas turbine power plant as claimed in claim 1, wherein a nitrogen storage tank is further arranged between the online nitrogen generator and the nitrogen bus.
3. The novel comprehensive utilization system of nitrogen in a gas turbine power plant as claimed in claim 2, wherein the online nitrogen generator comprises an A online nitrogen generator and a B online nitrogen generator which are arranged in parallel.
4. The novel comprehensive nitrogen utilization system for the combustion engine power plant as claimed in claim 1 or 3, characterized in that: the nitrogen application module comprises a waste heat boiler, a natural gas system and a hydrogen supply station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222686143.5U CN218237082U (en) | 2022-10-12 | 2022-10-12 | Novel comprehensive nitrogen utilization system for gas turbine power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222686143.5U CN218237082U (en) | 2022-10-12 | 2022-10-12 | Novel comprehensive nitrogen utilization system for gas turbine power plant |
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| CN218237082U true CN218237082U (en) | 2023-01-06 |
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| CN202222686143.5U Active CN218237082U (en) | 2022-10-12 | 2022-10-12 | Novel comprehensive nitrogen utilization system for gas turbine power plant |
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