CN209165360U - A kind of self-produced steam confession recovery system of nitric acid process production - Google Patents
A kind of self-produced steam confession recovery system of nitric acid process production Download PDFInfo
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- CN209165360U CN209165360U CN201821372148.8U CN201821372148U CN209165360U CN 209165360 U CN209165360 U CN 209165360U CN 201821372148 U CN201821372148 U CN 201821372148U CN 209165360 U CN209165360 U CN 209165360U
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Abstract
A kind of self-produced steam confession recovery system of nitric acid process production, the superheated steam outlet of nitric acid vapor superheater is connected by the steam inlet of jet chimney and drum, the steam (vapor) outlet of drum is connect with the starting point of the first conveyance conduit, the end of first conveyance conduit and the air inlet of steam check-valves and connection, the gas outlet of steam check-valves is connect with the starting point of the second conveyance conduit, the end of second conveyance conduit is connected to steam separator, the gas vent of steam separator is connected by the gas feed of pipeline and steam turbine, steam separator bottom is equipped with liquid outlet.Advantage is: by adding bypass duct at pipe line check valve, so that the technique is not lighted a fire and reacts preceding by being vented after steam check-valves, give the tunnel synchronization heating coil, after having reaction heat, the switching of self-produced steam energy short time, new equipment is not increased simultaneously, technique reaches corresponding technical requirements, can effectively save cost.
Description
Technical field
The utility model relates to nitric acid production process unit hardware fields, and in particular to a kind of production of nitric acid process it is self-produced
Steam confesses recovery system.
Background technique
It is outer for steam before nitric acid driving, after driving normally, since this technique self-produced steam is confessed, steamer need to be switched
The steam source of machine, and it is dead angle that steam pipe line, which has part, the heating coil being unable to fully, in handoff procedure vapor (steam) temperature fluctuation it is big,
Used time is too long, and there are security risks, wastes steam.In response to this, need to carry out the innovative design of relevant device.
Utility model content
The self-produced steam that the purpose of this utility model provides a kind of nitric acid process production aiming at drawbacks described above is confessed back
Receipts system.
A kind of self-produced steam confession recovery system of nitric acid process production, it includes nitric acid vapor superheater, drum, first
It is conveyance conduit, steam check-valves, bypass duct, the second conveyance conduit, outer for jet chimney, steam separator and steam turbine；
The superheated steam outlet of nitric acid vapor superheater is connect by jet chimney with the steam inlet of the drum, institute
The steam (vapor) outlet for stating drum is connect with the starting point of the first conveyance conduit, the end of first conveyance conduit and steam check-valves
Air inlet and connection, the gas outlet of steam check-valves connect with the starting point of the second conveyance conduit, the end of the second conveyance conduit
End is connected to the steam separator, and the gas vent of the steam separator passes through the gas feed of pipeline and the steam turbine
Connection, the steam separator bottom are equipped with liquid outlet；
One end of the bypass duct is connected to the first conveyance conduit, the other end is connected to the second conveyance conduit, the side
The middle part of road pipeline is equipped with steam stop, the steam stop and steam check-valves as parallel construction setting；
It is also connected with the emptying branch pipe with blow valve on first conveyance conduit, is connected on second conveyance conduit
There is the residue steam with exhaust valve to send pipe outside；
The outer gas supply end for jet chimney is connected to second conveyance conduit and conveys into the second conveyance conduit
Steam.
The outer inlet end connection for jet chimney is outer for vapour source, such as high-temperature steam boiler.
The utility model advantage is: the self-produced steam confession of nitric acid process production at present, the steam that need to switch steam turbine come
Source, and it is dead angle that steam pipe line, which has part, is unable to fully heating coil, vapor (steam) temperature fluctuation is big in handoff procedure, the used time is too long, exists
Security risk wastes steam.The utility model is utilized installs bypass additional at self-produced steam pipeline check-valves, in early period with outer for steaming
When automotive row, pipeline heating coil is carried out for steam using outer, by adding bypass duct at pipe line check valve, makes the non-point of the technique
By being vented after steam check-valves before fire reaction, the tunnel synchronization heating coil, after having reaction heat, self-produced steam energy short time are given
Switching, while not increasing new equipment, technique reaches corresponding technical requirements, can effectively save cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in the picture, a kind of self-produced steam of nitric acid process production confesses recovery system, it includes nitric acid vapor overheat
Device 1, drum 2, the first conveyance conduit 3, steam check-valves 4, bypass duct 5, the second conveyance conduit 6, it is outer for jet chimney 7, steam
Vapour separator 8 and steam turbine 9；
The superheated steam outlet of nitric acid vapor superheater 1 is connect by jet chimney with the steam inlet of the drum 2,
The steam (vapor) outlet of the drum 2 is connect with the starting point of the first conveyance conduit 3, the end of first conveyance conduit 3 and steam
The air inlet of check-valves 4 and connection, the gas outlet of steam check-valves 4 are connect with the starting point of the second conveyance conduit 6, the second conveying
The end of pipeline 6 is connected to the steam separator 8, and the gas vent of the steam separator 8 passes through pipeline and the steamer
The gas feed of machine 9 connects, and 8 bottom of steam separator is equipped with liquid outlet；
One end of the bypass duct 5 is connected to the first conveyance conduit 3, the other end is connected to the second conveyance conduit 6, described
The middle part of bypass duct 5 is equipped with steam control valve 10, and the steam control valve 10 is parallel construction setting with steam check-valves 4；
The emptying branch pipe with blow valve 11 is also connected on first conveyance conduit 3, on second conveyance conduit 6
It is connected with the residue steam with exhaust valve 12 and sends pipe 13 outside；
The outer gas supply end for jet chimney 7 is connected to and defeated into the second conveyance conduit 6 with second conveyance conduit 6
Send steam.
The outer inlet end connection for jet chimney 7 is outer for vapour source, such as high-temperature steam boiler.
Working principle: this system early period is supplied for jet chimney 7 with outer for vapour source outward, then outer successively to lead to for steam
The second conveyance conduit 6 and steam separator 8 are crossed, the gas after separation is entered by pipeline drives 9 turns of steam turbine inside steam turbine 9
It is dynamic；The self-produced superheated steam that this system uses nitric acid vapor superheater 1 instead after nitric acid production starting is supplied to steam turbine 9, at this time
It is first turned on the steam stop 10 of bypass duct 5, makes outer to enter in the first conveyance conduit 3 for steam by bypass duct 5
Give the first conveyance conduit 3 synchronous heating coil, once nitric acid vapor superheater 1 generates self-produced superheated steam using nitric acid oxidation reaction heat
Afterwards, the shut-off valve 10 of bypass duct 5 is closed, it is defeated that self-produced steam passes sequentially through the first conveyance conduit 3, steam check-valves 4 and second
Pipeline 6 is sent to enter steam separator 8, the gas after separation is entered inside steam turbine 9 by pipeline drives steam turbine 9 to rotate,
To realize that the self-produced steam short time switches.Bypass duct Technological improvement plan can solve due to nitric acid process production certainly
Producing steam and the fluctuation of vapor (steam) temperature caused during vapour, used time be too long and waste steam, and if misoperation may be used also
It can cause defect that is too low into the vapor (steam) temperature of steam turbine and influencing safety in production.
Claims (2)
1. a kind of self-produced steam of nitric acid process production confesses recovery system, it is characterised in that it includes nitric acid vapor superheater
(1), drum (2), the first conveyance conduit (3), steam check-valves (4), bypass duct (5), the second conveyance conduit (6), it is outer for steam
Steam pipe road (7), steam separator (8) and steam turbine (9)；
The superheated steam outlet of nitric acid vapor superheater (1) is connect by jet chimney with the steam inlet of the drum (2),
The steam (vapor) outlet of the drum (2) is connect with the starting point of the first conveyance conduit (3), the end of first conveyance conduit (3)
Air inlet and connection with steam check-valves (4), the gas outlet of steam check-valves (4) and the starting point of the second conveyance conduit (6)
Connection, the end of the second conveyance conduit (6) are connected to the steam separator (8), the gas vent of the steam separator (8)
It is connect by pipeline with the gas feed of the steam turbine (9), steam separator (8) bottom is equipped with liquid outlet；
One end of the bypass duct (5) is connected to the first conveyance conduit (3), the other end is connected to the second conveyance conduit (6), institute
The middle part for stating bypass duct (5) is equipped with steam stop (10), and the steam stop (10) and steam check-valves (4) are arranged side by side
Structure setting；
The emptying branch pipe with blow valve (11), second conveyance conduit (6) are also connected on first conveyance conduit (3)
On be connected with the residue steam with exhaust valve (12) and send pipe (13) outside；
The outer gas supply end for jet chimney (7) is connected to second conveyance conduit (6) and into the second conveyance conduit (6)
Convey steam.
2. a kind of self-produced steam of nitric acid process production according to claim 1 confesses recovery system, it is characterised in that institute
It is outer for vapour source to state the outer inlet end connection for jet chimney (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372148.8U CN209165360U (en) | 2018-08-24 | 2018-08-24 | A kind of self-produced steam confession recovery system of nitric acid process production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372148.8U CN209165360U (en) | 2018-08-24 | 2018-08-24 | A kind of self-produced steam confession recovery system of nitric acid process production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209165360U true CN209165360U (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821372148.8U Active CN209165360U (en) | 2018-08-24 | 2018-08-24 | A kind of self-produced steam confession recovery system of nitric acid process production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826511A (en) * | 2020-06-15 | 2020-10-27 | 华菱安赛乐米塔尔汽车板有限公司 | Method for improving platability of high-strength strip steel in hot dip plating production process |
-
2018
- 2018-08-24 CN CN201821372148.8U patent/CN209165360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826511A (en) * | 2020-06-15 | 2020-10-27 | 华菱安赛乐米塔尔汽车板有限公司 | Method for improving platability of high-strength strip steel in hot dip plating production process |
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