CN205953521U - Retrieve nitric oxide's device in tail gas of follow chemical plant - Google Patents
Retrieve nitric oxide's device in tail gas of follow chemical plant Download PDFInfo
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- CN205953521U CN205953521U CN201620941653.4U CN201620941653U CN205953521U CN 205953521 U CN205953521 U CN 205953521U CN 201620941653 U CN201620941653 U CN 201620941653U CN 205953521 U CN205953521 U CN 205953521U
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- heat exchanger
- rectifying column
- pipeline
- nitric oxide
- gas
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Abstract
The utility model discloses a retrieve nitric oxide's device in tail gas of follow chemical plant, including compressor, one -level heat exchanger, second grade heat exchanger, vapour and liquid separator, rectifying column, buffer tank, storage tank and online analysis device, the rectifying column is equipped with the entry end, end and storage end empty, the one end of compressor is passed through the pipeline and is connected with the one end of one -level heat exchanger, the other end of one -level heat exchanger passes through the pipeline and is connected with the one end of second grade heat exchanger, the other end of second grade heat exchanger passes through the pipeline and is connected with vapour and liquid separator's one end, vapour and liquid separator's the other end links to each other with the entry end of rectifying column. The utility model discloses retrieve nitric oxide hard to manage as the product, embody circular economy's value, not only just can embody the good social value of enterprise for the enterprise brings huge economic benefits.
Description
Technical field
This utility model is related to one kind and reclaims nitric oxide production device from the tail gas of chemical plant, belongs to recovery technology field.
Background technology
Oxynitride, is a kind of colorless and odorless, is insoluble in the toxic gas of water.Because nitric oxide carries free radical,
This makes its chemical property very active.After it is with oxygen reaction, can be formed and there is corrosive gas nitrogen dioxide
（NO2）, nitrogen dioxide can with water react generation nitric acid.In adipic acid（Nylon monomer）Production process in, nitric oxide conduct
By-product produces in a large number, is directly discharged into air and can cause greatly problem of environmental pollution, and therefore, before discharging, it is right to need in chemical plant
Tail gas is processed, and removes objectionable impurities nitric oxide therein.
At present, current way is using recirculated water, tail gas to be processed, and conversion of nitric oxide gas therein is nitric acid,
Thus reaching the purpose of vent gas treatment.
However, the method does not ensure that the nitric oxide in tail gas is removed completely.Through detection, in the tail gas of discharge
The still nitric oxide containing higher concentration.Secondly, substantial amounts of steam can be contained in the tail gas of final discharge, and contain relatively in steam
The nitric acid of high concentration, nitric acid has extremely strong corrosivity for chemical pipeline, has had a strong impact on the safety in production of equipment and has stablized
Run.Therefore, the method has certain limitation.
In view of this, develop a kind of new device, solve in the tail gas of discharge in prior art still containing higher concentration
Nitric oxide and the nitric acid generating in the duct have the defects such as extremely strong corrosivity it is clear that being a need for chemical pipeline
's.
Content of the invention
The purpose of this utility model is to provide one kind to reclaim nitric oxide production device from the tail gas of chemical plant.
To achieve the above object of the invention, the technical solution adopted in the utility model is：A kind of recovery from the tail gas of chemical plant
Nitric oxide production device, including compressor, first-class heat exchanger, secondary heat exchanger, gas-liquid separator, rectifying column, surge tank, storage tank
With on-line analyses device, described rectifying column be provided with arrival end, emptying end and storage end,
One end of described compressor is connected with one end of first-class heat exchanger by pipeline, the other end of described first-class heat exchanger
It is connected with one end of secondary heat exchanger by pipeline, the other end of described secondary heat exchanger passes through the one of pipeline and gas-liquid separator
End connects, and the other end of described gas-liquid separator is connected with the arrival end of rectifying column,
The emptying end of described rectifying column is connected with exhausting pipeline, and described exhausting pipeline is provided with analysis pipeline, described point
Analysis pipeline be connected with on-line analyses device, described rectifying column store end be connected with one end of surge tank, described surge tank another
One end is connected with storage tank.
Preferably, described emptying end is located at the top of rectifying column.
Preferably, described storage end is located at the bottom of rectifying column.
Because technique scheme is used, this utility model compared with prior art has following advantages：
1. this utility model adopts the tail gas producing in adipic acid production process as raw material, by carrying out complete group to raw material
Analysis, formulates rational recovery process, and, is provided with on-line analysis system in final exhaust port, real-time monitoring is
Nitric oxide production content in whole emission is it is ensured that the nitric oxide of discharge reaches the discharge standard of regulation；
2. intractable nitric oxide is reclaimed by this utility model as product, embodies the value of recycling economy, no
It is only enterprise and brings huge economic benefit, and good social value of enterprise can be embodied.
Brief description
Fig. 1 is the structural representation of this utility model embodiment one.
Wherein：1st, compressor；2nd, first-class heat exchanger；3rd, secondary heat exchanger；4th, gas-liquid separator；5th, rectifying column；6th, buffer
Tank；7th, storage tank；8th, on-line analyses device.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to this utility model：
Embodiment one：
Shown in Figure 1, one kind reclaims nitric oxide production device, including compressor 1, one-level heat exchange from the tail gas of chemical plant
Device 2, secondary heat exchanger 3, gas-liquid separator 4, rectifying column 5, surge tank 6, storage tank 7 and on-line analyses device 8, described rectifying column 7
It is provided with arrival end, emptying end and storage end,
One end of described compressor 1 is connected with one end of first-class heat exchanger 2 by pipeline, described first-class heat exchanger 2 another
One end is connected with one end of secondary heat exchanger 3 by pipeline, and the other end of described secondary heat exchanger 3 passes through pipeline and gas-liquid separation
One end of device 4 connects, and the other end of described gas-liquid separator 4 is connected with the arrival end of rectifying column 5,
The emptying end of described rectifying column 5 is connected with exhausting pipeline, and described exhausting pipeline is provided with analysis pipeline, described point
Analysis pipeline is connected with on-line analyses device 8, and the storage end of described rectifying column 5 is connected with one end of surge tank 6, described surge tank 6
The other end be connected with storage tank 7.
In the present embodiment, described emptying end is located at the top of rectifying column 5.
In the present embodiment, described storage end is located at the bottom of rectifying column 5.
Plant running step of the present utility model is as follows：Pass through pipe from what master device area produced containing nitric oxide production tail gas
Road entrance suction port of compressor, increases to enter into first-class heat exchanger from compressor outlet after certain pressure through compressor, for protecting
Card heat exchange efficiency, is connected with secondary heat exchanger after first-class heat exchanger it is ensured that tail gas and low-temperature receiver have sufficient heat exchange area it is ensured that tail gas
Middle overwhelming majority nitric oxide is condensed liquefaction；After secondary heat exchanger, tail gas enters gas-liquid separator, in gas-liquid separator
Middle liquid nitric oxide and a small amount of liquid heavy constituent are entered after being separated with on-condensible gas rectifying column, by rectifying column by nitric oxide
With substantial amounts of incoagulable gas such as nitrogen separation, incoagulable gas is vented through rectifying column top, and exhausting pipeline is connected with analyzer tube
Line, before emptying, analyzes nitric oxide production content in dropping a hint, meets relevant emission standards, then drop a hint and carry out through piping
Emptying process；As content of nitric oxide can not meet relevant emission standards, then proceed rectification；Rectifier bottoms and surge tank
It is connected, enter in surge tank containing the nitric oxide production condensed fluid of a large amount of liquid through rectifier bottoms, by surge tank, condensed fluid quilt
It is filled with storage tank.
Above-mentioned rectifying column master is mainly used in removing tail gas mid-boiling point less than nitric oxide production foreign gas.
Claims (3)
1. one kind reclaim nitric oxide production device from the tail gas of chemical plant it is characterised in that：Including compressor（1）, one-level heat exchange
Device（2）, secondary heat exchanger（3）, gas-liquid separator（4）, rectifying column（5）, surge tank（6）, storage tank（7）With on-line analyses device
（8）, described rectifying column（5）It is provided with arrival end, emptying end and storage end,
Described compressor（1）One end pass through pipeline and first-class heat exchanger（2）One end connect, described first-class heat exchanger（2）'s
The other end passes through pipeline and secondary heat exchanger（3）One end connect, described secondary heat exchanger（3）The other end pass through pipeline and gas
Liquid/gas separator（4）One end connect, described gas-liquid separator（4）The other end and rectifying column（5）Arrival end be connected,
Described rectifying column（5）Emptying end be connected with exhausting pipeline, described exhausting pipeline is provided with analysis pipeline, described analysis
Pipeline and on-line analyses device（8）Connect, described rectifying column（5）Storage end and surge tank（6）One end connect, described buffering
Tank（6）The other end and storage tank（7）Connect.
2. reclaim nitric oxide production device the tail gas from chemical plant according to claim 1 it is characterised in that：Described emptying end position
In rectifying column（5）Top.
3. reclaim nitric oxide production device the tail gas from chemical plant according to claim 1 it is characterised in that：Described storage end position
In rectifying column（5）Bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620941653.4U CN205953521U (en) | 2016-08-25 | 2016-08-25 | Retrieve nitric oxide's device in tail gas of follow chemical plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620941653.4U CN205953521U (en) | 2016-08-25 | 2016-08-25 | Retrieve nitric oxide's device in tail gas of follow chemical plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205953521U true CN205953521U (en) | 2017-02-15 |
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ID=57979678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620941653.4U Active CN205953521U (en) | 2016-08-25 | 2016-08-25 | Retrieve nitric oxide's device in tail gas of follow chemical plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205953521U (en) |
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2016
- 2016-08-25 CN CN201620941653.4U patent/CN205953521U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jin Xianghua Inventor after: Chen Qifeng Inventor after: Zong Lidong Inventor before: Jin Xianghua Inventor before: Chen Qifeng Inventor before: Zhang Yi Inventor before: Zheng Li Inventor before: Sun Haojie Inventor before: Zong Lidong |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215152 Anmin Road, Panyang Industrial Park, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Jinhong Gas Co.,Ltd. Address before: 215152 No. 6 Anmin Road, Panyang Industrial Park, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU JINHONG GAS Co.,Ltd. |