CN113401881A - Nitrogen preparation system for power plant - Google Patents
Nitrogen preparation system for power plant Download PDFInfo
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- CN113401881A CN113401881A CN202110771249.2A CN202110771249A CN113401881A CN 113401881 A CN113401881 A CN 113401881A CN 202110771249 A CN202110771249 A CN 202110771249A CN 113401881 A CN113401881 A CN 113401881A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 345
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 150
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 49
- 239000000428 dust Substances 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 20
- 230000003139 buffering effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000004868 gas analysis Methods 0.000 claims description 4
- 239000002808 molecular sieve Substances 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 24
- 239000003345 natural gas Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 101100175482 Glycine max CG-3 gene Proteins 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/045—Physical processing only by adsorption in solids
- C01B21/0455—Physical processing only by adsorption in solids characterised by the adsorbent
- C01B21/0461—Carbon based materials
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0045—Oxygen
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention provides a nitrogen preparation system for a power plant, and relates to the field of nitrogen preparation. The nitrogen preparation system for the power plant comprises an air filter, a buffer air storage tank, nitrogen making equipment, a nitrogen process tank and a dust fine filter which are sequentially connected, wherein an air inlet of the air filter is connected with a compressed air source; the device comprises a dust fine filter, a dust collecting tank, a nitrogen gas analyzer, a main controller, a dust collecting tank and a dust collecting tank, and a nitrogen gas collecting tank; and the nitrogen conveying pipeline is provided with a temperature detection element, a pressure detection element and a flowmeter, the temperature detection element, the pressure detection element and the flowmeter are respectively and electrically connected with a nitrogen analyzer, and the nitrogen analyzer, the front valve and the rear valve are respectively and electrically connected with the main controller so as to control whether to output nitrogen to power plant equipment according to nitrogen parameters.
Description
Technical Field
The invention relates to the technical field of nitrogen preparation, in particular to a nitrogen preparation system for a power plant.
Background
In the power grid system, part of the gas-steam combined cycle units are used as peak shaving units and start-up or stop operation is carried out according to scheduling. Under the normal condition, the waste heat boiler needs maintenance during the shutdown, the nitrogen filling maintenance effect is good, and the water changing time before the startup is shortened.
At present, nitrogen is generally used in a peak-shaving natural gas power plant, outsourcing bottled nitrogen or liquid nitrogen is adopted, the carrying workload is large, and the labor cost is overlarge. The prior nitrogen preparation technology, such as Chinese utility model patent with the publication number of CN206985715U and publication date of 2018.02.09, discloses a control system for the process flow of nitrogen making equipment, and specifically discloses nitrogen making equipment, wherein an air buffer tank, a nitrogen analyzer, a safety valve, a pressure regulating and reducing valve, a dust fine filter, a nitrogen buffer tank, a silencer and a nitrogen making device are arranged in the nitrogen making equipment, one end of the nitrogen making equipment is connected with a nitrogen outlet, one end of the nitrogen outlet is connected with a nitrogen gas storage tank, and the other end of the nitrogen making equipment is connected with air purification equipment; one end of the air purification equipment is connected with the gate valve, one end of the gate valve is connected with the air compression module, and the air compressor is arranged in the air compression module.
On one hand, when the waste heat boiler is maintained by using nitrogen in a power plant, the requirement on the purity of the nitrogen is high, but the nitrogen produced by the existing nitrogen making equipment has insufficient purity, so that the maintenance effect on the waste heat boiler is poor; on the other hand, after the nitrogen gas is filled into the natural gas pipeline by using the nitrogen gas, if the nitrogen gas pipeline and the natural gas pipeline cannot be quickly disconnected, the natural gas may leak into the nitrogen gas pipeline to cause explosion danger.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a nitrogen preparation system for a power plant, which solves the problems of insufficient purity of nitrogen produced by the existing nitrogen production equipment, poor maintenance effect on a waste heat boiler, and explosion risk caused by natural gas leakage into a nitrogen pipeline after nitrogen filling into the natural gas pipeline using nitrogen is completed.
The technical scheme of the nitrogen preparation system for the power plant comprises the following steps:
the nitrogen preparation system for the power plant comprises an air filter, a buffering air storage tank, nitrogen making equipment, a nitrogen process tank and a dust fine filter, wherein an air inlet of the air filter is connected with a compressed air source, and the air filter, the buffering air storage tank, the nitrogen making equipment, the nitrogen process tank and the dust fine filter are sequentially connected with a gas pipeline;
the device comprises a dust fine filter, a dust collecting tank, a nitrogen gas analyzer, a main controller, a dust collecting tank, a nitrogen gas analyzer and a main controller, wherein a gas pipeline between the nitrogen making equipment and the nitrogen gas process tank is provided with a front valve, an exhaust port of the dust fine filter is connected with a nitrogen gas conveying pipeline, the nitrogen conveying pipeline is provided with a rear valve and a one-way valve, and the one-way valve is communicated along the output direction of nitrogen gas and is conducted along the output direction of nitrogen gas and is reversed and non-return;
be equipped with temperature detection element, pressure detection element and flowmeter on the nitrogen gas conveyer pipe, temperature detection element, pressure detection element and flowmeter respectively with the nitrogen gas analysis appearance electricity is connected, the nitrogen gas analysis appearance preceding valve with back valve respectively with the main control unit electricity is connected to whether export nitrogen gas to power plant's equipment according to nitrogen gas parameter control.
Further, still be equipped with the atmospheric valve on the nitrogen gas conveyer pipe, the atmospheric valve is located the side of admitting air of back valve, the atmospheric valve with the main control unit electricity is connected to control nitrogen gas emission to atmospheric environment when the nitrogen gas parameter does not reach the standard.
Further, the nitrogen making equipment comprises a first nitrogen making device and a second nitrogen making device which are arranged in parallel, wherein an exhaust port of the first nitrogen making device is connected with a first exhaust branch, an exhaust port of the second nitrogen making device is connected with a second exhaust branch, and the first exhaust branch and the second exhaust branch are converged on a gas pipeline on the air inlet side of the nitrogen process tank;
and a first exhaust valve is arranged on the first exhaust branch, a second exhaust valve is arranged on the second exhaust branch, and the first exhaust valve and the second exhaust valve are respectively electrically connected with the main controller.
Further, an air inlet of the first nitrogen generator is connected with a first air inlet branch, an air inlet of the second nitrogen generator is connected with a second air inlet branch, and the first air inlet branch and the second air inlet branch are converged on an air pipeline on the exhaust side of the buffer air storage tank;
the air conditioner is characterized in that a first air inlet valve is arranged on the first air inlet branch, a second air inlet valve is arranged on the second air inlet branch, and the first air inlet valve and the second air inlet valve are respectively electrically connected with the main controller.
Further, the first air inlet valve, the second air inlet valve, the first exhaust valve, the second exhaust valve, the front valve and the rear valve are all pneumatic valves;
the first air inlet valve, the second air inlet valve, the first exhaust valve, the second exhaust valve, the front valve and the rear valve are respectively connected with an electromagnetic valve, each electromagnetic valve is respectively connected with a corresponding pneumatic valve, and the electromagnetic valves are used for controlling the corresponding pneumatic valves to be opened or closed.
Furthermore, carbon molecular sieves are arranged in the first nitrogen generator and the second nitrogen generator and used for adsorbing oxygen molecules in the air.
Furthermore, the buffer gas storage tank and the nitrogen process tank are respectively provided with a safety valve, and the safety valves are used for opening and releasing pressure when the tank body is in overpressure.
Furthermore, a pressure regulating valve or a pressure reducing valve is arranged at the position, close to the dust fine filter, of the nitrogen conveying pipeline.
Furthermore, the temperature detection element is a temperature sensor, and the pressure detection element is a pressure transmitter.
Has the advantages that: this a nitrogen gas preparation system for power plant has adopted air cleaner, buffering gas holder, nitrogen making equipment, nitrogen gas technology jar and dust fine filter's structural design, utilizes air cleaner to filter earlier the air and purifies, stores the air after filtering through buffering the gas holder, and the air lets in nitrogen making equipment and accomplishes the nitrogen making technology, stores nitrogen gas by nitrogen gas technology jar again to and purify the dust removal through dust fine filter to nitrogen gas. The temperature detection element, the pressure detection element and the flow meter respectively detect corresponding parameters of the output nitrogen, the nitrogen analyzer is used for analyzing whether all parameters of the nitrogen reach the standard or not, and finally the main controller controls whether the nitrogen is output to the power plant equipment or not, so that the high purity of the prepared nitrogen is ensured; in addition, the check valve can prevent natural gas in the natural gas pipeline from being reversely input into the nitrogen conveying pipeline, and the danger of explosion caused by the fact that the natural gas leaks into the nitrogen preparation system is prevented.
Drawings
FIG. 1 is a schematic configuration diagram of a nitrogen production system for a power plant in an embodiment of the nitrogen production system for a power plant according to the present invention.
In the figure: 1-air filter, 10-compressed air source, 11-manual drain valve, 2-buffer air storage tank, 3-nitrogen making equipment, 31-first nitrogen making device, 32-second nitrogen making device, 33-front valve, 34-first drain valve, 35-second drain valve, 36-first inlet valve, 37-second inlet valve, 38-electromagnetic valve, 4-nitrogen process tank, 40-safety valve, 41-pressure gauge, 5-dust fine filter, 50-pressure regulating valve, 51-temperature detecting element, 52-pressure detecting element, 53-flow meter, 54-one-way valve, 55-rear valve, 56-vent valve, 6-nitrogen analyzer and 7-main controller.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In embodiment 1 of the nitrogen preparation system for a power plant of the present invention, as shown in fig. 1, the nitrogen preparation system for a power plant includes an air filter 1, a buffer air tank 2, a nitrogen making device 3, a nitrogen process tank 4, and a dust fine filter 5, an air inlet of the air filter 1 is connected to a compressed air source 10, and the air filter 1, the buffer air tank 2, the nitrogen making device 3, the nitrogen process tank 4, and the dust fine filter 5 are sequentially connected to a gas pipeline; the nitrogen preparation system also comprises a nitrogen analyzer 6 and a main controller 7, a gas pipeline between the nitrogen making equipment 3 and the nitrogen process tank 4 is provided with a front valve 33, an exhaust port of the dust fine filter 5 is connected with a nitrogen conveying pipeline, the nitrogen conveying pipeline is provided with a rear valve 55 and a one-way valve 54, and the one-way valve 54 is conducted along the output direction of nitrogen and is reversely non-return; the nitrogen conveying pipeline is provided with a temperature detection element 51, a pressure detection element 52 and a flow meter 53, the temperature detection element 51, the pressure detection element 52 and the flow meter 53 are respectively and electrically connected with the nitrogen analyzer 6, and the nitrogen analyzer 6, the front valve 33 and the rear valve 55 are respectively and electrically connected with the main controller 7 so as to control whether to output nitrogen to the power plant equipment according to nitrogen parameters.
This a nitrogen gas preparation system for power plant has adopted air cleaner 1, buffering gas holder 2, nitrogen making equipment 3, nitrogen gas technology jar 4 and dust fine filter 5's structural design, utilizes air cleaner 1 to filter earlier the air and purifies, stores the air after filtering through buffering gas holder 2, and the air lets in nitrogen making equipment 3 and accomplishes the nitrogen making technology, stores nitrogen gas by nitrogen gas technology jar 4 again to and purify dust removal to nitrogen gas through dust fine filter 5. The temperature detection element 51, the pressure detection element 52 and the flow meter 53 respectively detect corresponding parameters of the output nitrogen, the nitrogen analyzer 6 is used for analyzing whether each parameter of the nitrogen reaches the standard or not, and finally the main controller 7 controls whether the nitrogen is output to the power plant equipment or not, so that the high purity of the prepared nitrogen is ensured; moreover, the check valve 54 can prevent the natural gas in the natural gas pipeline from reversely inputting into the nitrogen gas conveying pipeline, and prevent the natural gas from leaking into the nitrogen gas preparation system to cause explosion danger.
In the embodiment, the specific model of the air filter 1 is KAL-25/10A, the specific model of the buffering air storage tank 2 is CG-3/10, the specific model of the nitrogen making equipment 3 is KSN-300A, the specific model of the nitrogen process tank 4 is CG-3/8, and the specific model of the fine dust filter 5 is KLF-10/10.
Still be equipped with atmospheric valve 56 on the nitrogen gas conveyer pipe, atmospheric valve 56 is located the side of admitting air of back valve 55, and atmospheric valve 56 is connected with main control unit 7 electricity to control nitrogen gas emission to atmospheric environment when the nitrogen gas parameter does not reach standard, ensured that the quality of inputing nitrogen gas in to power plant's equipment is reliable, prevent that the nitrogen gas composition from not reaching standard and influencing the maintenance effect.
The nitrogen making equipment 3 comprises a first nitrogen making device 31 and a second nitrogen making device 32 which are arranged in parallel, wherein an exhaust port of the first nitrogen making device 31 is connected with a first exhaust branch, an exhaust port of the second nitrogen making device 32 is connected with a second exhaust branch, and the first exhaust branch and the second exhaust branch are converged on a gas pipeline on the air inlet side of the nitrogen process tank 4; and a first exhaust valve 34 is arranged on the first exhaust branch, a second exhaust valve 35 is arranged on the second exhaust branch, and the first exhaust valve 34 and the second exhaust valve 35 are respectively and electrically connected with the main controller 7.
The air inlet of the first nitrogen generator 31 is connected with a first air inlet branch, the air inlet of the second nitrogen generator 32 is connected with a second air inlet branch, and the first air inlet branch and the second air inlet branch are converged on a gas pipeline on the exhaust side of the buffer gas storage tank 2; and a first air inlet valve 36 is arranged on the first air inlet branch, a second air inlet valve 37 is arranged on the second air inlet branch, and the first air inlet valve 36 and the second air inlet valve 37 are respectively and electrically connected with the main controller 7. The air input and nitrogen output are accurately controlled by the main controller 7 controlling the opening or closing of the first and second intake valves 36 and 37, respectively, the first and second intake valves 36 and 37.
Moreover, carbon molecular sieves are installed inside the first nitrogen generator 31 and the second nitrogen generator 32 of the nitrogen generator 3, and the carbon molecular sieves are used for adsorbing oxygen molecules in the air, so that the technical purpose of deoxidation and nitrogen generation is achieved.
Specifically, the first intake valve 36, the second intake valve 37, the first exhaust valve 34, the second exhaust valve 35, the front valve 33, and the rear valve 55 are all pneumatic valves; the first intake valve 36, the second intake valve 37, the first exhaust valve 34, the second exhaust valve 35, the front valve 33 and the rear valve 55 are respectively connected with an electromagnetic valve 38, each electromagnetic valve 38 is respectively connected with a corresponding pneumatic valve, and the electromagnetic valves 38 are used for controlling the corresponding pneumatic valves to open or close.
In addition, the buffer gas storage tank 2 and the nitrogen process tank 4 are respectively provided with a safety valve 40, and the safety valves 40 are used for opening and releasing pressure when the tank body is in overpressure. And a pressure regulating valve 50 or a pressure reducing valve is arranged at the position of the nitrogen conveying pipeline close to the fine dust filter 5, and the nitrogen is conveyed to a subsequent pipeline after being subjected to pressure reduction by utilizing the pressure regulating valve 50 or the pressure reducing valve. The temperature detection element is a temperature sensor, and the pressure detection element is a pressure transmitter.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A nitrogen preparation system for a power plant is characterized by comprising an air filter, a buffering air storage tank, nitrogen making equipment, a nitrogen process tank and a dust fine filter, wherein an air inlet of the air filter is connected with a compressed air source, and the air filter, the buffering air storage tank, the nitrogen making equipment, the nitrogen process tank and the dust fine filter are sequentially connected with a gas pipeline;
the device comprises a dust fine filter, a dust collecting tank, a nitrogen gas analyzer, a main controller, a dust collecting tank, a nitrogen gas analyzer and a main controller, wherein a gas pipeline between the nitrogen making equipment and the nitrogen gas process tank is provided with a front valve, an exhaust port of the dust fine filter is connected with a nitrogen gas conveying pipeline, the nitrogen conveying pipeline is provided with a rear valve and a one-way valve, and the one-way valve is communicated along the output direction of nitrogen gas and is conducted along the output direction of nitrogen gas and is reversed and non-return;
be equipped with temperature detection element, pressure detection element and flowmeter on the nitrogen gas conveyer pipe, temperature detection element, pressure detection element and flowmeter respectively with the nitrogen gas analysis appearance electricity is connected, the nitrogen gas analysis appearance preceding valve with back valve respectively with the main control unit electricity is connected to whether export nitrogen gas to power plant's equipment according to nitrogen gas parameter control.
2. The nitrogen preparation system for the power plant of claim 1, wherein a blow-down valve is further arranged on the nitrogen delivery pipeline, the blow-down valve is located on an air inlet side of the rear valve, and the blow-down valve is electrically connected with the main controller to control nitrogen to be discharged to the atmospheric environment when nitrogen parameters do not meet standards.
3. The nitrogen preparation system for the power plant as claimed in claim 1, wherein the nitrogen making equipment comprises a first nitrogen making device and a second nitrogen making device which are arranged in parallel, the exhaust port of the first nitrogen making device is connected with a first exhaust branch, the exhaust port of the second nitrogen making device is connected with a second exhaust branch, and the first exhaust branch and the second exhaust branch are converged on a gas pipeline at the inlet side of the nitrogen process tank;
and a first exhaust valve is arranged on the first exhaust branch, a second exhaust valve is arranged on the second exhaust branch, and the first exhaust valve and the second exhaust valve are respectively electrically connected with the main controller.
4. The nitrogen preparation system for the power plant as claimed in claim 3, wherein the inlet of the first nitrogen generator is connected with a first inlet branch, the inlet of the second nitrogen generator is connected with a second inlet branch, and the first inlet branch and the second inlet branch are converged on the gas pipeline on the exhaust side of the buffer gas storage tank;
the air conditioner is characterized in that a first air inlet valve is arranged on the first air inlet branch, a second air inlet valve is arranged on the second air inlet branch, and the first air inlet valve and the second air inlet valve are respectively electrically connected with the main controller.
5. The nitrogen generation system for a power plant of claim 4, wherein the first inlet valve, the second inlet valve, the first exhaust valve, the second exhaust valve, the front valve, and the rear valve are all pneumatic valves;
the first air inlet valve, the second air inlet valve, the first exhaust valve, the second exhaust valve, the front valve and the rear valve are respectively connected with an electromagnetic valve, each electromagnetic valve is respectively connected with a corresponding pneumatic valve, and the electromagnetic valves are used for controlling the corresponding pneumatic valves to be opened or closed.
6. The nitrogen production system for a power plant of claim 3, wherein the first nitrogen generator and the second nitrogen generator are each internally provided with a carbon molecular sieve for adsorbing oxygen molecules in the air.
7. The nitrogen production system for a power plant of claim 1, wherein the buffer gas storage tank and the nitrogen process tank are respectively provided with a safety valve for opening pressure relief when the tank body is over-pressurized.
8. The nitrogen production system for a power plant of claim 1, wherein the nitrogen delivery line is provided with a pressure regulating valve or a pressure reducing valve at a location near the fine dust filter.
9. The nitrogen generation system for a power plant of claim 1, wherein the temperature sensing element is a temperature sensor and the pressure sensing element is a pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771249.2A CN113401881A (en) | 2021-07-07 | 2021-07-07 | Nitrogen preparation system for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771249.2A CN113401881A (en) | 2021-07-07 | 2021-07-07 | Nitrogen preparation system for power plant |
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| CN113401881A true CN113401881A (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110771249.2A Pending CN113401881A (en) | 2021-07-07 | 2021-07-07 | Nitrogen preparation system for power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804040A (en) * | 2022-03-11 | 2022-07-29 | 华电电力科学研究院有限公司 | Low-cost nitrogen preparation process for power plant |
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| CN215626805U (en) * | 2021-07-07 | 2022-01-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Nitrogen preparation system for power plant |
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2021
- 2021-07-07 CN CN202110771249.2A patent/CN113401881A/en active Pending
Patent Citations (4)
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| CN106348261A (en) * | 2016-12-03 | 2017-01-25 | 上海垣锦机电设备制造有限公司 | Nitrogen-making device |
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| CN111359371A (en) * | 2020-03-30 | 2020-07-03 | 浙江勤策空分设备有限公司 | PSA nitrogen making equipment for treating tail gas |
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| CN114804040A (en) * | 2022-03-11 | 2022-07-29 | 华电电力科学研究院有限公司 | Low-cost nitrogen preparation process for power plant |
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