CN204746278U - Urea production device driving passivation gaseous emission remote control unit - Google Patents
Urea production device driving passivation gaseous emission remote control unit Download PDFInfo
- Publication number
- CN204746278U CN204746278U CN201520428010.5U CN201520428010U CN204746278U CN 204746278 U CN204746278 U CN 204746278U CN 201520428010 U CN201520428010 U CN 201520428010U CN 204746278 U CN204746278 U CN 204746278U
- Authority
- CN
- China
- Prior art keywords
- valve
- passivation
- urea
- remote control
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y02P20/142—
Abstract
The utility model discloses an urea production device driving passivation gaseous emission remote control unit has solved the current urea production device low problem with the field operation difficulty of the regulation precision of blow -down valve of driving on the passivation gaseous emission pipeline. Include that the intercommunication has high -pressure letter shoot (2) between urea synthesis tower (1) and high -pressure scrubber (6), be connected with carbon dioxide induction -pipe (10) in the bottom of urea synthesis tower (1), be provided with unloading stop valve (4) and barometer (5) respectively on high -pressure letter shoot (2), be connected with automatically controlled governing valve (3) in the export of unloading stop valve (4), automatically controlled governing valve (3) link together through valve regulation signal line (8) and automatically controlled cabinet (7) electricity, barometer (5) link together through pressure signal line (9) and automatically controlled cabinet (7) electricity. Passivation and the driving entire system pressure of guaranteeing to heat up is steady, has reduced intensity of labour, has ensured driving safety.
Description
Technical field
The utility model relates to a kind of pipe valve remote control, particularly the remote control of drain valve on a kind of urea plant driving passivation gas discharge pipe.
Background technology
When carbon dioxide stripping process urea plant is driven after initial start-up or row's tower, need to add air with carbon dioxide gas and carry out intensification passivation to high-tension apparatus, passivation directly drops into liquefied ammonia and proceeds to start-up after eight hours.Need according to the pressure of high-pressure system during passivation, the vent stop valve on proper handling urea synthesizer gas phase pipeline, carbon dioxide emptying.After proceeding to start-up, because liquefied ammonia enters system, start to react with carbon dioxide, now high-pressure starts to decline, and along with passage of time, just have the from then on atmospheric valve discharge of part gas ammonia, this process need arranges special messenger near this valve, carries out valve switch control according to the instruction that control room operating personnel send.Because general vent stop valve is all arranged on eminence, during emptying, noise is larger, control room personnel and the interactive difficulty of execute-in-place valve personnel, and have fraction ammonia to discharge, have influence on the working environment of site operation personnel, the control accuracy of the stop valve of manual operation is simultaneously very low, easily causes system pressure fluctuate or cause superpressure phenomenon to occur.
Summary of the invention
The utility model provides a kind of urea plant driving passivation gas discharge remote control, solves the technical problem of the low and execute-in-place difficulty of the degree of regulation of drain valve on existing urea plant driving passivation gas discharge pipe.
The utility model solves above technical problem by the following technical programs:
A kind of urea plant driving passivation gas discharge remote control, comprise urea synthesizer and high pressure scrubber, high pressure gas carrier pipe is communicated with between urea synthesizer and high pressure scrubber, carbon dioxide snorkel is connected with in the bottom of urea synthesizer, high pressure gas carrier pipe is respectively arranged with vent stop valve and air gauge, the outlet of vent stop valve is connected with electric controlled regulating valve, electric controlled regulating valve is electrically connected by valve regulated holding wire and electrical control cubicles, and air gauge is electrically connected by pressure signal line and electrical control cubicles.
Electrical control cubicles is arranged in ground Central Control Room.
The utility model is in urea plant intensification passivation and startup procedure, operative employee is not needed to operate at the scene of bad environments, control room personnel accurately control by Central Control Room is long-range, ensure intensification passivation and driving whole system pressure steady, decrease labour intensity, ensure that driving safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail:
A kind of urea plant driving passivation gas discharge remote control, comprise urea synthesizer 1 and high pressure scrubber 6, high pressure gas carrier pipe 2 is communicated with between urea synthesizer 1 and high pressure scrubber 6, carbon dioxide snorkel 10 is connected with in the bottom of urea synthesizer 1, high pressure gas carrier pipe 2 is respectively arranged with vent stop valve 4 and air gauge 5, the outlet of vent stop valve 4 is connected with electric controlled regulating valve 3, electric controlled regulating valve 3 is electrically connected by valve regulated holding wire 8 and electrical control cubicles 7, air gauge 5 is electrically connected by pressure signal line 9 and electrical control cubicles 7.
Electrical control cubicles 7 is arranged in ground Central Control Room.When driving after carbon dioxide stripping process urea production initial start-up or tower, need to add air with carbon dioxide gas and intensification passivation is carried out to high-tension apparatus, general is all by manually arriving field control exhaust-valve 4, by control room, operating personnel command by-pass cock by intercom, there is contact not smooth, the defects such as operative employee's labour intensity is large.The utility model increases a Remote valve, signal is introduced control room and realizes operated from a distance, not only can save manpower, and operation is very simple, and can shorten passivation and drive the time, save the electricity charge, economic effect is obvious.
Claims (2)
1. a urea plant driving passivation gas discharge remote control, comprise urea synthesizer (1) and high pressure scrubber (6), high pressure gas carrier pipe (2) is communicated with between urea synthesizer (1) and high pressure scrubber (6), carbon dioxide snorkel (10) is connected with in the bottom of urea synthesizer (1), it is characterized in that, high pressure gas carrier pipe (2) is respectively arranged with vent stop valve (4) and air gauge (5), the outlet of vent stop valve (4) is connected with electric controlled regulating valve (3), electric controlled regulating valve (3) is electrically connected by valve regulated holding wire (8) and electrical control cubicles (7), air gauge (5) is electrically connected by pressure signal line (9) and electrical control cubicles (7).
2. a kind of urea plant driving passivation gas discharge remote control according to claim 1, it is characterized in that, electrical control cubicles (7) is arranged in ground Central Control Room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520428010.5U CN204746278U (en) | 2015-06-21 | 2015-06-21 | Urea production device driving passivation gaseous emission remote control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520428010.5U CN204746278U (en) | 2015-06-21 | 2015-06-21 | Urea production device driving passivation gaseous emission remote control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204746278U true CN204746278U (en) | 2015-11-11 |
Family
ID=54461037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520428010.5U Expired - Fee Related CN204746278U (en) | 2015-06-21 | 2015-06-21 | Urea production device driving passivation gaseous emission remote control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204746278U (en) |
-
2015
- 2015-06-21 CN CN201520428010.5U patent/CN204746278U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102600759A (en) | Nitrogen/chlorine (argon/chlorine) mixing and proportioning system and operation method thereof | |
| CN204746278U (en) | Urea production device driving passivation gaseous emission remote control unit | |
| CN101496939B (en) | Gas storage type compressed-air type A foam extinguishing device | |
| CN209174525U (en) | System with blow device | |
| CN202609903U (en) | Sulfuric acid pressure conveying system | |
| CN206741293U (en) | A kind of medical center oxygen supply monitoring system based on PLC | |
| CN203322734U (en) | Prying device for standby natural gas sources | |
| CN110848179A (en) | Intelligent gas pressurization system and use method thereof | |
| CN204664860U (en) | A kind of concentrated nitrogen gas supply system | |
| CN204005247U (en) | Improved instrument air process system | |
| CN103588163B (en) | One ammoniacal liquor dispensing safely and efficiently Automated condtrol technique | |
| CN105589493A (en) | Automatic control system for ripening acceleration of fruit | |
| CN104261150A (en) | Discharging system for ammonium nitrate tank truck | |
| CN205008333U (en) | Water pipe cleaning equipment remote control system | |
| CN203478838U (en) | Device for quickly starting air separation unit | |
| CN208138870U (en) | The CO supply system optimized based on CO compressor output pressure difference | |
| CN203423031U (en) | On-line intelligent oil supplementation vehicle for transformer | |
| CN109027684A (en) | A kind of nitrogen supply (NS) system | |
| CN203074682U (en) | Calibration device of sphygmomanometer | |
| CN203196578U (en) | Mixed gas preparation device | |
| CN102840993A (en) | Airborne oxygen concentrator external field test device | |
| CN204737249U (en) | Liquid ammonia dashpot liquid level control device | |
| CN205903782U (en) | Nitrogen oxide processing system | |
| CN205533159U (en) | Energy -conserving synthetic ammonia natural gas compression system | |
| CN204042440U (en) | A kind of compressed-air actuated feedway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20170621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |