CN201357034Y - Adipic acid argon, nitrate and waste gas recovery system - Google Patents
Adipic acid argon, nitrate and waste gas recovery system Download PDFInfo
- Publication number
- CN201357034Y CN201357034Y CNU2008202271563U CN200820227156U CN201357034Y CN 201357034 Y CN201357034 Y CN 201357034Y CN U2008202271563 U CNU2008202271563 U CN U2008202271563U CN 200820227156 U CN200820227156 U CN 200820227156U CN 201357034 Y CN201357034 Y CN 201357034Y
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- argon
- valve
- pressure
- nitrate
- waste gas
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Abstract
The utility model relates to an adipic acid argon, nitrate and waste gas recovery system, which is characterized in that the system comprises a gate valve and an outlet pipe, wherein the gate valve is installed on an argon, nitrate and waste gas header and close to a scrubbing tower, the outlet pipe is installed on the argon, nitrate and waste gas header and in front of the gate valve, the output end of the outlet pipe is connected with the inlet of an argon, nitrate and waste gas compressor, a pressure regulating valve and a low-pressure isolating valve are installed at the central part of the outlet pipe, the pressure regulating valve and the low-pressure isolating valve are connected in series, and the pressure introducing points of the two pressure transmitters used to control the pressure regulating valve and the low-pressure isolating valve are arranged at two different positions in front of the outlet pipe on the argon, nitrate and waste gas header. The utility model has the advantages that the water, including primary water and chilling water, is saved; the electricity is saved, the argon, nitrate and waste gas are recovered in form of nitric acid, and the expenses in waste water treatment are saved.
Description
(1) technical field
The present invention relates to chemical industry equipment, particularly a kind of argon-nitre adipate gas recovery system.
(2) background technology
Alcohol ketone and nitric acid oxidation reaction in oxidation reactor produces argon nitre waste gas.The gas phase pipeline that oxidation reactor pushes up links to each other with argon nitre off-gas compressor inlet, and this machine outlet of contracting connects absorption tower, and effect is with after the compression of argon nitre waste gas, enters the absorption tower by water or rare nitric acid absorption becoming salpeter solution.Introduced the scrubbing tower bottom after the argon nitre waste gas that former design volatilizes from nitric acid tank field, 100# and 700# enters argon nitre exhaust manifold, sprayed washings down from tower top, wherein the argon niter air washs, and innocuous gas enters atmosphere from cat head.The washings that contain the argon niter air enter the sewage-farm, neutralize with NaOH again.For using water wisely, washings recycle.But because washing the argon niter air with water is exothermic reaction, the temperature of washing water that recycles too higher position influences clean result, and cat head will emit tobacco.Will replenish with 15 ℃ of cold water of 4 times in order to lower the temperature, unnecessary hot water enters the sewage-farm.And 15 ℃ of cold water are to get through 7 ℃ of cold water coolings that lithium bromide refrigerating comes out with 28 ℃ of water.Can waste a large amount of water, electricity and sewage disposal expense like this, and argon niter air clean result is undesirable, not thorough.
(3) summary of the invention
The present invention is in order to remedy the deficiencies in the prior art, the argon-nitre adipate gas recovery system that provide a kind of water-saving, power saving, reduce expenses, treatment effect is good.
The present invention is achieved through the following technical solutions:
Argon-nitre adipate gas recovery system of the present invention, its special character is: comprise a gate valve that is installed in close scrubbing tower place on the argon nitre exhaust manifold, and be installed in a fairlead that is positioned on the argon nitre exhaust manifold before the gate valve, the output of fairlead connects argon niter air suction port of compressor, the fairlead middle part is equipped with the pressure-regulating valve and the low pressure stop valve of mutual series connection, and the impulse point of two pressure transmitters of controlled pressure control valve and low pressure stop valve is positioned at the diverse location of fairlead front on argon nitre exhaust manifold.
Argon-nitre adipate gas recovery system of the present invention, the fairlead two ends also are separately installed with a gate valve, and they are connected with pressure-regulating valve and low pressure stop valve.
The invention has the beneficial effects as follows,
1, water saving: 15 ℃ of 5t/h (through freezing water-cooled cold water)
A, save ten thousand yuan/year of water: 5t/h * 8000h/ * 1 yuan/t=4
B, saving chilled water:
28 ℃ of water of 1t drop to the heat Q1=1MJ/t. ℃ * 1t that 15 ℃ of needs take away * (28-15)=13MJ
7 ℃ of chilled waters of 1t are warmed up to 12 ℃ of needed heat Q2=1MJ/t. ℃ * 1t * (12-7)=5MJ
28 ℃ of water of 1t drop to 15 ℃ needs chilled water 13MJ/5MJ=2.6t by desirable condition, if heat exchange efficiency by 80%, then needs chilled water 2.6t/0.8=3.25t to save ten thousand yuan/year of chilled water: 3.25t * 5/h * 8000h/ * 1.9 yuan/t=24.7
2, economize on electricity: circulated sprinkling water pump P 10123 2.2kw of T10101 can not open ten thousand yuan/year of 2.2kw * 8000h/ * 0.63 yuan/kwh=1.1088
3, reclaiming argon nitre waste gas is nitric acid: reclaim nitric acid (by 2000 yuan of meters of present sewage nitric acid content 0.05%, 100% nitric acid unit price): ten thousand yuan/year of 5t/h * 8000h/ * 0.05% * 2000 yuan/t=4
4, saving sewage disposal expense: 5t/h * 8000h/ * 8 yuan/t=32 adds up to for ten thousand yuan/year and saves ten thousand yuan/year of 65.8.88.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, A, 1,4 is gate valve, 2 pressure-regulating valves, 3 low pressure stop valves, 5 argon nitre exhaust manifold, 6 scrubbing towers, 7 argon niter air compressors, 8 pressure transmitters.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Argon-nitre adipate gas recovery system of the present invention, comprise a gate valve A who is installed in close scrubbing tower 6 places on the argon nitre exhaust manifold 5, and be installed in a fairlead that is positioned on the argon nitre exhaust manifold before the gate valve A, the output of fairlead connects the argon niter air and compresses 7 machines inlet, the fairlead middle part is equipped with the pressure-regulating valve 2 and the low pressure stop valve 3 of mutual series connection, and the impulse point of two pressure transmitters 8 of controlled pressure control valve 2 and low pressure stop valve 3 is positioned at the diverse location of fairlead front on argon nitre exhaust manifold.The fairlead two ends also are separately installed with a gate valve 1,4, and they are connected with pressure-regulating valve and low pressure stop valve.
Argon-nitre adipate gas recovery system of the present invention, be to go to add a gate valve A on the argon nitre exhaust manifold of scrubbing tower T10101, before gate valve A, draw a pipeline and go to the suction port of compressor, 4 valves are installed on this pipeline, be two gate valves 1,4 at two ends, middle pressure-regulating valve 2 and low pressure stop valve 3, the impulse point of two pressure transmitters of controlled pressure control valve 2 and low pressure stop valve 3 advance the preceding diverse location of scrubbing tower gate valve on argon nitre exhaust manifold.
During operation, will go gate valve 1 and gate valve 4 on the pipeline of suction port of compressor to open, the regulating system of pressure-regulating valve 2 and low pressure stop valve 3 is put into operation, the gate valve on the argon nitre exhaust manifold is closed.When the argon nitre exhaust gas pressure step-down in the collector, pressure-regulating valve 2 will dwindle valve opening automatically, and when the argon nitre exhaust gas pressure in the collector drops to 0, pressure-regulating valve 2 interlockings will be closed automatically, low pressure stop valve 3 also cuts out automatically simultaneously, is not taken out flat with the jar that the dual fail-safe assurance links to each other with collector.When the argon nitre exhaust gas pressure in the collector uprises, pressure-regulating valve will enlarge valve opening automatically, and when the argon nitre exhaust gas pressure in the collector was raised to the 200mm water column, pressure-regulating valve 2 was with standard-sized sheet.Argon nitre exhaust gas pressure in collector continues to rise, and from link to each other with collector jar the water seal of overflow pipe when emitting tobacco, open collector and remove the scrubbing tower gate valve, allow argon nitre waste gas enter scrubbing tower, drive washing water pump simultaneously and spray washings from cat head.When the argon nitre exhaust gas pressure in the collector hangs down to the 200mm water column, recover this system's operation again.
Claims (2)
1. argon-nitre adipate gas recovery system, it is characterized in that: comprise that being installed in argon nitre exhaust manifold (5) goes up a gate valve (A) of locating near scrubbing tower (6), and be installed in and be positioned at gate valve (A) fairlead before on the argon nitre exhaust manifold, the output of fairlead connects argon niter air suction port of compressor (7), the fairlead middle part is equipped with the pressure-regulating valve (2) and the low pressure stop valve (3) of mutual series connection, and the impulse point of two pressure transmitters (8) of controlled pressure control valve (2) and low pressure stop valve (3) is positioned at the diverse location of fairlead front on argon nitre exhaust manifold.
2. argon-nitre adipate gas recovery system according to claim 1 is characterized in that: the fairlead two ends also are separately installed with a gate valve (1,4), and they are connected with pressure-regulating valve (2) and low pressure stop valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202271563U CN201357034Y (en) | 2008-12-16 | 2008-12-16 | Adipic acid argon, nitrate and waste gas recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202271563U CN201357034Y (en) | 2008-12-16 | 2008-12-16 | Adipic acid argon, nitrate and waste gas recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201357034Y true CN201357034Y (en) | 2009-12-09 |
Family
ID=41422791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202271563U Expired - Lifetime CN201357034Y (en) | 2008-12-16 | 2008-12-16 | Adipic acid argon, nitrate and waste gas recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201357034Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491745B (en) * | 2008-12-16 | 2011-04-20 | 山东洪业化工集团有限公司 | Argon-nitre adipate gas recovery system |
| CN102553877A (en) * | 2012-02-15 | 2012-07-11 | 山东洪达化工有限公司 | Yellow smoke absorption system for nitric acid pot area |
-
2008
- 2008-12-16 CN CNU2008202271563U patent/CN201357034Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491745B (en) * | 2008-12-16 | 2011-04-20 | 山东洪业化工集团有限公司 | Argon-nitre adipate gas recovery system |
| CN102553877A (en) * | 2012-02-15 | 2012-07-11 | 山东洪达化工有限公司 | Yellow smoke absorption system for nitric acid pot area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091209 Effective date of abandoning: 20081216 |