CN202501710U - High-purity nitrogen equipment - Google Patents
High-purity nitrogen equipment Download PDFInfo
- Publication number
- CN202501710U CN202501710U CN2012200623117U CN201220062311U CN202501710U CN 202501710 U CN202501710 U CN 202501710U CN 2012200623117 U CN2012200623117 U CN 2012200623117U CN 201220062311 U CN201220062311 U CN 201220062311U CN 202501710 U CN202501710 U CN 202501710U
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- China
- Prior art keywords
- purity nitrogen
- fractionating column
- prepurification
- input module
- column system
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Abstract
The utility model provides high-purity nitrogen equipment. The equipment comprises three parts which are a raw material air compressor, a prepurification apparatus and a fractionating tower system. The three parts all comprise input modules, output modules and data lines. The output module of the raw material air compressor is connected with the input module of the prepurification apparatus. The output module of the prepurification apparatus is connected with the input module of the fractionating tower system. The output module of the fractionating tower system is connected with the input module of the prepurification apparatus. The high-purity nitrogen equipment of the utility model has the following advantages that: the equipment is highly integrated and can be transported as an integral body; an engineering design of the high-purity nitrogen equipment is simple and fast; on-site checking is simple and convenient, installation is simple and fast and the quality of the installation is high. By using a booster expansion turbine, product nitrogen can be pressurized. The energy of the expansion turbine can be recycled and a purpose of energy saving and emission reduction is achieved.
Description
Technical field
The utility model relates to a kind of high-purity nitrogen plant, relates more specifically to adopt the method for rectifying to produce the device of high-purity nitrogen.
Background technology
The raw material of high-purity nitrogen plant is an air, and production method mainly is a cryogenic rectification, and main consumption is electric energy in the production process.Along with the day of the energy is more nervous, the rising steadily of energy prices, energy-saving and cost-reducing is one of major issue of paying close attention to the most of all trades and professions.Along with the application of nitrogen more and more widely, it is at the demand rapid growth in fields such as chemical industry, petroleum industry, electronics industry, food industry, metal smelt and processing industry.High-purity nitrogen plant has the market demand widely.
High-purity nitrogen plant is made up of raw air compressor, precooling unit or cooling driers group, prepurification system, fractionating column etc. usually.Comprise the pipeline between each equipment simultaneously and be installed in appearance control elements such as valve on the pipeline, pressure, temperature, flow-through orifice.At present general way is that each stand-alone device of forming high-purity nitrogen plant is installed at the user scene, connects process pipeline and the needed valve of technology between each stand-alone device, pressure, temperature, flow-through orifice etc. then.Also some manufacturer is with pipe arrangement in the factory of prepurification system, and loose mail is delivered, assembled on site.
Present high-purity nitrogen plant, using gases bearing decompressor mostly, blower fan braking.Through the air compressor machine compressibility, chilldown system, purification system, cooling system, pressure drop is about 0.1MPa behind the distillation system, and the air compressor machine energy consumption is higher, and the external institute of decompressor work wastes.
Summary of the invention
The purpose of the utility model is to solve above-mentioned technical problem, provides a kind of assembling simple and convenient, the high-purity nitrogen plant that energy consumption is low.
The purpose of the utility model realizes through following technical scheme:
A kind of high-purity nitrogen plant comprises three parts: raw air compressor, prepurification device and fractionating column system; Said three parts include input module, output module and data wire; The output module of said raw air compressor is connected to the input module of prepurification device; The output module of prepurification device is connected to the input module of fractionating column system, and the output module of fractionating column system is connected to the input module of prepurification device.
Preferably, said fractionating column system comprises main heat exchanger and the subcooler that is used for heat exchange, and rectifying column; The bottom of said rectifying column is provided with compressed-air actuated inlet; This inlet is connected to the output module of prepurification device purifying through the input module of fractionating column system; The top of said rectifying column is the outlet of nitrogen, and the bottom of said rectifying column also is provided with the outlet of oxygen-enriched liquid air.
Preferably, said fractionating column system also comprises booster expansion turbine, and its inlet is connected to the outlet of product nitrogen gas, and its outlet is connected to the input module of prepurification device through the output module of fractionating column system.
Preferably, said prepurification device comprises through the interconnective separator of pipeline, air cleaner, absorber, electric heater, silencer and air-flow measurement device.
Preferably, the pipeline in said oxygen-enriched liquid air exit is through being arranged in condenser/evaporator, main heat exchanger and the turbo-expander of fractionating column system.
Preferably, also comprise the PLC long distance control system, the data wire of said raw air compressor, prepurification device and fractionating column system is connected to described PLC long distance control system.
The beneficial effect of the utility model is mainly reflected in: highly be integrated into raw air compressor, prepurification device and three parts of fractionating column system; The ability whole Transporting; Make engineering design simple and fast, the scene of high-purity nitrogen plant check simple and convenient, installation simple and fast, installation quality is high.Booster expansion turbine can be with the product nitrogen gas supercharging, thereby can reduce the pressure at expulsion of raw air compressor, and can reclaim the energy of decompressor, reaches energy-saving and emission-reduction and the purpose that improves product competitiveness.This high-purity nitrogen plant can be realized centralized Control to the high-purity nitrogen plant of different regions, centralized management through utilizing long distance control system.
Description of drawings
Below in conjunction with accompanying drawing the utility model technical scheme is described further:
Fig. 1: the sketch map of the utility model high-purity nitrogen plant.
Wherein.
| 1 | The raw air compressor | 3 | Fractionating column system | 5 | The prepurification device |
| 11 | Separator | 13 | Absorber | 15 | Air cleaner |
| 17 | Silencer | 19 | |
21 | Condenser/ |
| 23 | |
25 | Rectifying |
27 | |
| 12 | Electric heater | ? | ? | ? | ? |
The specific embodiment
The principle of the utility model is to utilize the difference of oxygen nitrogen boiling point in the air, adopts the method for cryogenic rectification to produce high-purity nitrogen.
Like Fig. 1, the high-purity nitrogen plant of the utility model mainly comprises three parts, is respectively raw air compressor 1, prepurification device 5 and fractionating column system 3.Said three parts include input module, output module and data wire.The input module of raw air compressor 1 is used to import raw air; The output module of raw air compressor 1 is connected to the input module of prepurification device 5; The output module of prepurification device 5 is connected to the input module of fractionating column system, and the output device of fractionating column system 3 is connected to the input module of prepurification device 5.High-purity nitrogen plant also comprises pipeline and the circuit that aforesaid three parts are connected with each other; Also comprise the PLC long distance control system; The data wire of aforesaid raw air compressor 1, prepurification device 5 and fractionating column system 3 is connected to this PLC long distance control system, controls to realize that high-purity nitrogen plant is unattended.
Above-mentioned various piece all is highly integrated, and integral body is dispatched from the factory, and has greatly reduced the workload of engineering design and site operation, and complete equipment is more flexible for the user, and the occupation of land space is little, convenient resettlement.The connection of front and rear part can realize the accurate connection of simple and fast through process pipeline by technological process.It is simple and convenient that while this high-purity nitrogen plant each several part has taked to make the scene to check.
Continuation is with reference to Fig. 1; Raw air at first gets into high-purity nitrogen plant by raw air compressor 1; Go out dust and mechanical admixture through filter therein, become compressed air more after compression and cool off, then from the output module of raw air compressor 1; Deliver to the input module of prepurification device 5 through pipeline, get into prepurification device 5 and further handle.
5 pairs of compressed air of prepurification device carry out purified treatment, remove airborne water, carbon dioxide and acetylene and other hydrocarbon; Fraction is as the bearing gas and the blanket gas of instrument air and decompressor after preliminary treatment for air, and most of output module that passes through prepurification device 5 is delivered to the input module of fractionating column system 3 through pipeline, is further handled by fractionating column system 3.
Prepurification device 5 comprises through the interconnective separator 11 of pipeline, electric heater 12, and absorber 13, air cleaner 15, silencer 17, and the air-flow measurement device etc.Through above-mentioned each parts, the prepurification device is realized purification, the measurement of air mass flow, the adjusting of regeneration gas pressure of air, the Flow-rate adjustment of product nitrogen gas, the noise elimination processing of emptying gas, the filtration and the distribution of instrument air.
Prepurification device 5 is done as a whole dispatching from the factory; It is in place that assembling shape before dispatching from the factory has promptly been accomplished absorber 13; Separator 11, air cleaner 15, electric heater 12, silencer 17 are in place, switch board and power distribution cabinet in place, the installation of process pipe and instrument measuring point and valve; The instrument air pipeline (containing gauge valve and distributor) that automatic valve is required, the crane span structure of switch board to automatic valve locator or magnetic valve, instrument measuring point and control cable; The cable of power distribution cabinet to electric heater and consumer and crane span structure, the insulation and the paint of the pressure testing of process system and equipment and technology pipeline.Only need accomplish the content of following external connection when installing at the scene: process pipeline connection, engineering design to switch board and power distribution cabinet crane span structure and cable laying and wiring.The client's who buys this equipment installation and debugging work have been simplified greatly.
Fractionating column system 3 obtains product nitrogen gas with the air distillation behind the purifying.Fractionating column system 3 mainly comprises rectifying column 25, condenser/evaporator 21, is used for main heat exchanger 19 and subcooler 23, the booster expansion turbine 27 etc. of heat exchange.
Air at first gets into rectifying column 25 by the compressed-air actuated inlet of rectifying column 25 bottoms, carries out cryogenic rectification and separates therein, obtains high pure nitrogen at the top of rectifying column 25, obtains oxygen-enriched liquid air in the bottom.The top of rectifying column 25 is provided with nitrogen outlet, and high pure nitrogen is from this outlet output, and a part is condensed into liquid nitrogen by the oxygen-enriched liquid air after the throttling; Phegma and small amount of liquid product as rectifying column 25; Re-heat goes out fractionating column system 3 to another part as product nitrogen gas, is specially, after 27 superchargings of product nitrogen gas process booster expansion turbine; Get into prepurification device 5 from the output module of fractionating column system 2 and the input module of prepurification device 5; Carry out flow measurement and analysis therein, qualified products are carried the downstream pipe network, and substandard product carries out emptying in prepurification device 5.
The bottom of rectifying column 25 also is provided with the oxygen-enriched liquid air outlet, and the pipeline of this oxygen-enriched liquid air outlet is connected to condenser/evaporator 21 successively, main heat exchanger 19 and booster expansion turbine 27; The laggard bottom of going into main heat exchanger 19 of oxygen-enriched liquid air throttling in condenser/evaporator 21; Get into booster expansion turbine 27 behind the recovery section cold and carry out swell refrigeration, behind the oxygen rich air supercooled liquid sky after the expansion, with the air re-heat; Leave fractionating column system 3; Be specially from the output module of fractionating column system 3 and the input module of prepurification device 5 and get into prepurification device 5, a part is as the regeneration gas of prepurification device 5, and redundance also carries out emptying in the prepurification device.
The utility model still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming all drop within the scope of the utility model requirement protection.
Claims (6)
1. a high-purity nitrogen plant is characterized in that, comprises three parts: raw air compressor, prepurification device and fractionating column system; Said three parts include input module, output module and data wire; The output module of said raw air compressor is connected to the input module of prepurification device; The output module of prepurification device is connected to the input module of fractionating column system, and the output module of fractionating column system is connected to the input module of prepurification device.
2. high-purity nitrogen plant according to claim 1 is characterized in that: said fractionating column system comprises main heat exchanger and the subcooler that is used for heat exchange, and rectifying column; The bottom of said rectifying column is provided with compressed-air actuated inlet; This inlet is connected to the output module of prepurification device purifying through the input module of fractionating column system; The top of said rectifying column is the outlet of nitrogen, and the bottom of said rectifying column also is provided with the outlet of oxygen-enriched liquid air.
3. high-purity nitrogen plant according to claim 2; It is characterized in that: said fractionating column system also comprises booster expansion turbine; Its inlet is connected to the outlet of product nitrogen gas, and its outlet is connected to the input module of prepurification device through the output module of fractionating column system.
4. high-purity nitrogen plant according to claim 1 is characterized in that: said prepurification device comprises through the interconnective separator of pipeline, air cleaner, absorber, electric heater, silencer and air-flow measurement device.
5. high-purity nitrogen plant according to claim 1 is characterized in that: the pipeline in said oxygen-enriched liquid air exit is through being arranged in condenser/evaporator, main heat exchanger and the turbo-expander of fractionating column system.
6. high-purity nitrogen plant according to claim 1 is characterized in that: also comprise the PLC long distance control system, the data wire of said raw air compressor, prepurification device and fractionating column system is connected to described PLC long distance control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200623117U CN202501710U (en) | 2012-02-24 | 2012-02-24 | High-purity nitrogen equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200623117U CN202501710U (en) | 2012-02-24 | 2012-02-24 | High-purity nitrogen equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501710U true CN202501710U (en) | 2012-10-24 |
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ID=47038322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200623117U Expired - Lifetime CN202501710U (en) | 2012-02-24 | 2012-02-24 | High-purity nitrogen equipment |
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| Country | Link |
|---|---|
| CN (1) | CN202501710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589251A (en) * | 2012-02-24 | 2012-07-18 | 苏州制氧机有限责任公司 | High purity nitrogen device |
-
2012
- 2012-02-24 CN CN2012200623117U patent/CN202501710U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589251A (en) * | 2012-02-24 | 2012-07-18 | 苏州制氧机有限责任公司 | High purity nitrogen device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Wuzhong District Mudu town Suzhou city Jiangsu province 215101 Spring Road No. 31 Patentee after: SUZHOU OXYGEN PLANT CO., LTD. Address before: Wuzhong District Mudu town Suzhou city Jiangsu province 215101 Spring Road No. 31 Patentee before: Suzhou Oxygen Plant Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
|
| CX01 | Expiry of patent term |