CN217076989U - Device for preparing nitrogen for power plant - Google Patents
Device for preparing nitrogen for power plant Download PDFInfo
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- CN217076989U CN217076989U CN202220527547.7U CN202220527547U CN217076989U CN 217076989 U CN217076989 U CN 217076989U CN 202220527547 U CN202220527547 U CN 202220527547U CN 217076989 U CN217076989 U CN 217076989U
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Abstract
The utility model discloses a device for preparing nitrogen gas of power plant relates to air separation technical field, has solved the complicated, area of technology that exist among the prior art big, the high scheduling problem of system gas cost. The device includes pressure controller, manual control valve, electric control valve, filtering dryer, nitrogen separator, booster, hygrometer, flowmeter, middling pressure nitrogen gas storage tank and pressure transmitter, utilizes the self-control compressed air of power plant to carry out reasonable design, can enough satisfy the gas demand of power plant under the new energy situation, compromises simple process simultaneously, the requirement such as the cost is low of making gas.
Description
Technical Field
The utility model relates to an air separation technical field, concretely relates to power plant is with device of preparing nitrogen gas.
Background
At present, nitrogen used by most of existing power plants is conveyed by a nitrogen bottle, and the mode is only suitable for small-range gas supply requirements and cannot meet the development requirements under new energy situations. If the power plant adopts the traditional direct method or indirect method to prepare the nitrogen, the nitrogen using requirement of the power plant can be met, but the common process is more complex, the occupied area is large, and the gas preparation cost is high. Under the background, a set of device for preparing nitrogen for a power plant needs to be developed urgently, the development requirement of gas utilization of the power plant under a new energy situation can be met, and the requirements of simple process, low gas preparation cost and the like can be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provide a nitrogen preparation device with reasonable design, small occupied area and low gas preparation cost.
The utility model provides a technical scheme that above-mentioned problem adopted is: a device for preparing nitrogen for a power plant is characterized by comprising a pressure controller, a manual control valve, an electric control valve, a filtering dryer, a nitrogen-gas separator, a booster, a hygrometer, a flowmeter, a medium-pressure nitrogen storage tank and a pressure transmitter, wherein the filtering dryer is connected with an air inlet pipeline; the filter dryer is connected with a nitrogen separator, and an inlet pipeline and an outlet pipeline of the nitrogen separator are both provided with electric control valves; the nitrogen separator is connected with a booster, a manual control valve is mounted on an inlet pipeline of the booster, and a hygrometer, a flowmeter, a manual control valve and an electric control valve are sequentially arranged on an outlet pipeline of the booster; the booster is connected with the medium-pressure nitrogen storage tank, a pressure transmitter is arranged on the upper portion of the medium-pressure nitrogen storage tank, two gas transmission pipelines are arranged at the outlet of the medium-pressure nitrogen storage tank, and a pressure controller, a manual control valve and an electric control valve are sequentially arranged on each gas transmission pipeline.
Furthermore, the inlet air of the inlet pipeline mainly comes from compressed air self-made by an air compressor room of the power plant. The existing compressed air resources of the power plant can be fully utilized, the air inlet pressure is adjusted by matching with the pressure controller, the normal operation of the nitrogen preparation device is guaranteed, and therefore the cost can be reduced, and the occupied area of equipment can be reduced.
Further, the filter dryer comprises a dryer, a dust filter and an organic matter filter. The compressed air is sequentially subjected to drying, dust removal, oil removal and other treatment, impurities in the compressed air are filtered, and meanwhile, the separation effect of the nitrogen separator is improved.
Furthermore, the number of the nitrogen separators is two, the two nitrogen separators both adopt a carbon molecular sieve process, and the two nitrogen separators are connected in parallel. The nitrogen and oxygen molecules in the air are adsorbed and separated by utilizing the compressed air power effect in a short time, so that the continuous high-quality nitrogen preparation is realized.
Further, nitrogen separator's outlet pipeline connects to the booster, and the booster is stored the nitrogen gas pressurization that will prepare to medium pressure nitrogen gas storage tank, through the pressurization processing once more of booster, can improve the nitrogen gas storage capacity of storing in the medium pressure nitrogen gas storage tank on the one hand, and on the other hand can convenient quick each system of delivering to the power plant. The outlet pipeline of the booster is sequentially provided with a hygrometer, a flowmeter, a manual control valve and an electric control valve to monitor the humidity and the flow of the nitrogen.
Compared with the prior art, the utility model, have following advantage and effect:
1. the utility model discloses make full use of power plant's current resource, reasonable in design, simple process, can show the operation degree of difficulty that reduces power plant and use nitrogen gas, improved work efficiency.
2. The utility model discloses area is little, more can be applicable to the gas demand of different power plants.
3. The utility model discloses the system gas cost is low, more can satisfy the power plant development demand under the new energy situation, has more economic advantage.
Drawings
FIG. 1 is a schematic structural view of the nitrogen gas production device of the present invention.
In the figure: the device comprises a pressure controller 1, a manual control valve 2, an electric control valve 3, a filtering dryer 4, a nitrogen separator 5, a booster 6, a hygrometer 7, a flowmeter 8, a medium-pressure nitrogen storage tank 9 and a pressure transmitter 10.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1, in this embodiment, a device for preparing nitrogen for a power plant includes a pressure controller 1, a manual control valve 2, an electric control valve 3, a filter dryer 4, a nitrogen separator 5, a booster 6, a hygrometer 7, a flowmeter 8, a medium-pressure nitrogen storage tank 9, and a pressure transmitter 10, where the filter dryer 4 is connected to an air inlet pipeline, and the pressure controller 1, the manual control valve 2, and the electric control valve 3 are sequentially arranged on the air inlet pipeline; the filtering dryer 4 is connected with a nitrogen separator 5, and an inlet pipeline and an outlet pipeline of the nitrogen separator 5 are both provided with electric control valves 3; the nitrogen separator 5 is connected with a booster 6, a manual control valve 2 is arranged on an inlet pipeline of the booster 6, and a hygrometer 7, a flowmeter 8, the manual control valve 2 and an electric control valve 3 are sequentially arranged on an outlet pipeline of the booster 6; the booster 6 is connected with a medium-pressure nitrogen storage tank 9, a pressure transmitter 10 is arranged on the upper portion of the medium-pressure nitrogen storage tank 9, two gas transmission pipelines are arranged at the outlet of the medium-pressure nitrogen storage tank 9, and a pressure controller 1, a manual control valve 2 and an electric control valve 3 are sequentially arranged on the two gas transmission pipelines.
The nitrogen preparation process comprises the following steps:
when nitrogen is prepared, checking each pipeline firstly, opening all manual control valves 2 after ensuring normal operation, opening an electric control valve 3 on an air inlet pipeline and an electric control valve 3 on an inlet and outlet pipeline of a nitrogen separator 5, adjusting a pressure controller 1 on the air inlet pipeline to ensure that the air inlet pressure reaches a designed value, introducing compressed air from the air inlet pipeline, purifying the compressed air by using a filter dryer 4 to remove impurities, introducing the compressed air into the nitrogen separator 5 for adsorption separation, introducing the separated nitrogen into a booster 6 for boosting, then storing the nitrogen into a medium-pressure nitrogen storage tank 9, and tracking the quality and flow of the nitrogen through a hygrometer 7 and a flowmeter 8;
when the nitrogen preparation is stopped, the compression air valve is closed, the electric control valve 3, the booster 6 and the medium-pressure nitrogen storage tank 9 on the outlet pipeline of the nitrogen separator 5 are closed, the filter dryer 4 is backflushed by utilizing the residual air of the nitrogen separator 5, the pressure relief is completed, and the electric control valve 3 on the inlet pipeline of the nitrogen separator 5 is closed. The nitrogen required by the power plant can be prepared for use in the plant through the scheme.
In this embodiment, the inlet air of air inlet pipeline mainly derives from the compressed air of power plant air compressor computer lab self-control. The filter dryer 4 includes a dryer, a dust filter, and an organic matter filter. The number of the nitrogen separators 5 is two, the two nitrogen separators 5 both adopt a carbon molecular sieve process, and the two nitrogen separators 5 are connected in parallel. The outlet pipeline of nitrogen separator 5 connects to booster 6, and booster 6 stores the nitrogen pressurization of making to medium pressure nitrogen gas storage tank 9, through booster 6's pressurization processing once more, can improve the nitrogen gas storage capacity of storing to in the medium pressure nitrogen gas storage tank 9 on the one hand, and on the other hand can convenient each system of sending to the power plant fast. The outlet pipeline of the booster 6 is sequentially provided with a hygrometer 7, a flowmeter 8, a manual control valve 2 and an electric control valve 3 to monitor the humidity and the flow of the nitrogen.
Under the new energy situation of a certain power plant, a unit is often in a standby state, the problem of unit corrosion is a problem which is very concerned by the power plant, nitrogen is quickly prepared in the power plant at low cost by adopting the device and is conveyed to each system of the whole plant through a nitrogen pipeline for furnace shutdown nitrogen protection, and the expected economic benefit created every year is not less than 100 ten thousand.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (5)
1. A device for preparing nitrogen for a power plant is characterized by comprising a pressure controller (1), a manual control valve (2), an electric control valve (3), a filtering dryer (4), a nitrogen separator (5), a booster (6), a hygrometer (7), a flowmeter (8), a medium-pressure nitrogen storage tank (9) and a pressure transmitter (10), wherein the filtering dryer (4) is connected with an air inlet pipeline, and the pressure controller (1), the manual control valve (2) and the electric control valve (3) are sequentially arranged on the air inlet pipeline; the filtering dryer (4) is connected with a nitrogen separator (5), and electric control valves (3) are respectively arranged on an inlet pipeline and an outlet pipeline of the nitrogen separator (5); the nitrogen separator (5) is connected with a booster (6), a manual control valve (2) is mounted on an inlet pipeline of the booster (6), and a hygrometer (7), a flowmeter (8), the manual control valve (2) and an electric control valve (3) are sequentially arranged on an outlet pipeline of the booster (6); the booster (6) is connected with the medium-pressure nitrogen storage tank (9), the upper part of the medium-pressure nitrogen storage tank (9) is provided with a pressure transmitter (10), the outlet of the medium-pressure nitrogen storage tank (9) is connected with a gas transmission pipeline, and a pressure controller (1), a manual control valve (2) and an electric control valve (3) are sequentially arranged on the gas transmission pipeline.
2. A plant nitrogen production plant as claimed in claim 1, wherein the inlet air of said inlet pipeline is derived from compressed air self-made in the air compressor room of the plant.
3. A plant nitrogen production plant according to claim 1, characterized in that the filter dryer (4) comprises a dryer, a dust filter and an organic filter.
4. A plant nitrogen gas production plant according to claim 1, characterized in that there are two nitrogen separators (5) and that the two nitrogen separators (5) are connected in parallel.
5. A plant nitrogen gas production plant according to claim 1, wherein there are two gas transmission lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527547.7U CN217076989U (en) | 2022-03-11 | 2022-03-11 | Device for preparing nitrogen for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527547.7U CN217076989U (en) | 2022-03-11 | 2022-03-11 | Device for preparing nitrogen for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217076989U true CN217076989U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220527547.7U Active CN217076989U (en) | 2022-03-11 | 2022-03-11 | Device for preparing nitrogen for power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217076989U (en) |
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2022
- 2022-03-11 CN CN202220527547.7U patent/CN217076989U/en active Active
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Inventor after: Wei Hao Inventor after: Yang Jiangwen Inventor after: Feng Jie Inventor after: Guo Jianhua Inventor after: Su Changmao Inventor after: Li Jianwu Inventor after: Lan Yonglong Inventor after: Ye Shengchun Inventor after: Zhang Hejing Inventor after: Zhou Wei Inventor after: Chen Peng Inventor after: Li Bin Inventor after: Lin Zengwen Inventor after: Wu Jun Inventor before: Wei Hao Inventor before: Yang Jiangwen Inventor before: Feng Jie Inventor before: Guo Jianhua Inventor before: Su Changmao Inventor before: Li Jianwu Inventor before: Lan Yonglong Inventor before: Ye Shengchun Inventor before: Zhang Hejing Inventor before: Zhou Wei Inventor before: Chen Peng Inventor before: Li Bin Inventor before: Lin Zengwen Inventor before: Wu Jun |