CN206700808U - Synthesize ammonia natural gas washing system - Google Patents
Synthesize ammonia natural gas washing system Download PDFInfo
- Publication number
- CN206700808U CN206700808U CN201720510298.XU CN201720510298U CN206700808U CN 206700808 U CN206700808 U CN 206700808U CN 201720510298 U CN201720510298 U CN 201720510298U CN 206700808 U CN206700808 U CN 206700808U
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- natural gas
- water
- wash tower
- gas
- separator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses one kind to synthesize ammonia natural gas washing system,Including natural gas wash tower,Natural gas air inlet pipe line and desalted water water inlet pipe are provided with natural gas wash tower,Desalted water water inlet pipe is located at the top of natural gas air inlet pipe line,Natural gas air inlet pipe line is connected with the gas outlet of natural-gas separator,The Imported gas of natural-gas separator is connected by pipeline with natural gas distribution station,The bottom of natural gas wash tower sets blowdown pipeline,Natural gas blast pipe at the top of it is connected with separator,Separator is connected with normal temperature desulfurizer,The bottom of natural gas wash tower is provided with desalination water outlet line,The desalination water outlet line is connected with filter inlet,The outlet of filter is connected with washing water-circulating pump,The outlet of washing water-circulating pump is connected with the recirculated water return pipe on natural gas wash tower top,Blowdown pipeline is connected with the import of flash tank,The bottom of flash tank is provided with drainpipe,Top sets blast pipe,Energy-saving and emission-reduction.
Description
Technical field
A kind of synthesis ammonia natural gas washing system is the utility model is related to, belongs to ammonia synthesis process system regions.
Background technology
Ammonia synthesis process main-process stream is：Natural gas from long-distance transport pipes initially enters natural gas distribution station, and natural gas exists
Gas distribution station enters after row buffering and pressure regulation to enter the normal temperature desulphurization system of synthetic ammonia installation, is then taken off by natural gas compressing, high temperature
Sulphur, one section of steam conversion of heat exchange type, two sections of oxygen-enriched air conversions, the conversion of carbon monoxide high and low temperature, improves hot potash method decarburization,
Methanation deep purifying removes remaining CO and CO2, synthesis gas compression, ammonia synthesis under 14.0MPa, freezing separation, finally give
Product liquefied ammonia.
Natural gas from gas distribution station initially enters natural-gas separator, be separated off inside natural gas the moisture of entrainment and
Impurity, then natural gas enter back into natural gas wash tower, counter current contacting is washed in tower with desalted water, in natural gas not
The dust separated thoroughly cleans up.Discharged after desalination water washing natural gas from blowdown pipeline, sewage directly passes through setting
Cesspool is discharged into the blowdown pipeline of natural gas wash tower bottoms.Natural gas after washing comes out at the top of natural gas scrubbing tower
After be again introduced into separator, enter normal temperature desulfurizer when separating washing natural gas after the moisture carried secretly, having in natural gas
Machine sulphur can be largely removed in normal temperature desulfurizer.
The system has problems in that：Because tower pressure interior force is higher, natural gas can be partly dissolved in washings, washing
Wash water and be directly discharged to trench, the natural gas being dissolved in water will be depressured and discharge, production scene will disperse largely
Natural gas, if scene there is spark if having burning or blast danger, this can bring very big safety to produced on-site
Hidden danger, the natural gas discharged in water fail to recycle and kind wasted.In addition, the system desalination water use efficiency is low.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of synthesis ammonia natural gas washing system, recovery washing
Natural gas in water, avoids combustion gas from wasting, and eliminates safe hidden trouble, and improves the utilization rate of desalted water.
To achieve these goals, the technical solution of the utility model is as follows：One kind synthesis ammonia natural gas washing system, bag
Natural gas wash tower is included, is provided with natural gas air inlet pipe line and desalted water water inlet pipe on the natural gas wash tower, desalted water enters
Water pipe is located at the top of natural gas air inlet pipe line, the gas outlet phase of the natural gas air inlet pipe line and natural-gas separator
Even, the Imported gas of the natural-gas separator is connected by pipeline with natural gas distribution station, the natural gas wash tower
Bottom sets blowdown pipeline, and the natural gas blast pipe at the top of it is connected with separator, and the separator is connected with normal temperature desulfurizer,
It is characterized in that：The bottom of the natural gas wash tower is provided with desalination water outlet line, the desalination water outlet line and filtering
Device import is connected, and the outlet of the filter is connected with washing water-circulating pump, the outlet of the washing water-circulating pump and natural gas
The recirculated water return pipe on scrubbing tower top is connected, and the blowdown pipeline is connected with the import of flash tank, the bottom of the flash tank
Drainpipe is provided with, top sets blast pipe.
Using such scheme, natural gas enters back into natural gas wash tower, and counter current contacting is washed in tower with desalted water,
The dust not separated in natural gas is thoroughly cleaned up.From the bottom desalted water of scrubbing tower after desalination water washing natural gas
Outlet line out enters filter, is then pressurizeed by washing water-circulating pump, and the desalted water after pressurization passes through recirculated water backwater
Guan Congta tops enter, and desalted water carries out circulation washing in tower, improve desalination water use efficiency.When desalination water washing natural gas becomes
After dirty, washings with pressure are first discharged into flash tank, because pressure reduces, being dissolved in water natural gas will discharge
Come, the natural gas discharged delivers into combustion system by blast pipe after being come out at the top of flash tank and recycled, washing
Water is directly discharged to cesspool from the bottom of flash tank and handled.
In such scheme：Flowmeter is provided with the recirculated water return pipe.It is easy to control the flow of backwater desalted water.
In such scheme：Valve is provided with the drainpipe and blast pipe of the flash tank.
In such scheme：Valve is provided with the blowdown pipeline of the natural gas wash tower.
Beneficial effect：The washing system of the utility model design, after the natural gas decompression being dissolved in water is flashed off
Reclaim and use as fuel gas, reached energy-saving purpose, prevent natural gas from meeting fire and burning or explosion accident occurs, prevent
The generation of security incident, improve the utilization rate of desalted water.
Brief description of the drawings
Fig. 1 is process chart of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
Embodiment 1, as shown in Figure 1：Synthesis ammonia natural gas washing system of the present utility model is by natural gas wash tower 1, day
Right gas separating device 2, separator 3, normal temperature desulfurizer 4, filter 5, washing water-circulating pump 6, flowmeter 7, flash tank 8 form.
Natural gas air inlet pipe line and desalted water water inlet pipe are provided with natural gas wash tower 1, desalted water water inlet pipe is located at day
The top of right gas admission line, natural gas air inlet pipe line are connected with the gas outlet of natural-gas separator 2, natural-gas separator
2 Imported gas is connected by pipeline with natural gas distribution station, and the bottom of natural gas wash tower 1 sets blowdown pipeline, naturally
Valve is provided with the blowdown pipeline of gas wash tower 1.Natural gas blast pipe at the top of it is connected with separator 3, separator 3 with often
Warm desulfurizer 4 is connected, and the bottom of natural gas wash tower 1 is provided with desalination water outlet line, the desalination water outlet line and filtering
The import of device 5 is connected, and the outlet of filter 5 is connected with washing water-circulating pump 6, washs the outlet of water-circulating pump 6 and natural gas washing
The recirculated water return pipe on the top of tower 1 is connected, and flowmeter 7 is provided with recirculated water return pipe.The import of blowdown pipeline and flash tank 8
It is connected, the bottom of flash tank 8 is provided with drainpipe, and top sets blast pipe.It is respectively provided with the drainpipe and blast pipe of flash tank 8
There is valve.
The utility model is not limited to above-mentioned specific embodiment, it will be appreciated that one of ordinary skill in the art is without wound
The property made work can makes many modifications and variations according to design of the present utility model.In a word, all technologies in the art
Personnel can be obtained by logical analysis, reasoning, or a limited experiment on the basis of existing technology according to design of the present utility model
The technical scheme arrived, all should be in the protection domain being defined in the patent claims.
Claims (4)
1. one kind synthesis ammonia natural gas washing system, including natural gas wash tower (1), described naturally to be set on gas wash tower (1)
There are natural gas air inlet pipe line and desalted water water inlet pipe, desalted water water inlet pipe is located at the top of natural gas air inlet pipe line, described natural
Gas admission line is connected with the gas outlet of natural-gas separator (2), and the Imported gas of the natural-gas separator (2) leads to
Cross pipeline to connect with natural gas distribution station, the bottom of the natural gas wash tower (1) sets blowdown pipeline, the natural gas at the top of it
Blast pipe is connected with separator (3), and the separator (3) is connected with normal temperature desulfurizer (4), it is characterised in that：The natural gas
The bottom of scrubbing tower (1) is provided with desalination water outlet line, and the desalination water outlet line is connected with filter (5) import, described
The outlet of filter (5) is connected with washing water-circulating pump (6), the outlet of the washing water-circulating pump (6) and natural gas wash tower
(1) the recirculated water return pipe on top is connected, and the blowdown pipeline is connected with the import of flash tank (8), the bottom of the flash tank (8)
Portion is provided with drainpipe, and top sets blast pipe.
2. ammonia natural gas washing system is synthesized according to claim 1, it is characterised in that：Set on the recirculated water return pipe
There is flowmeter (7).
3. synthesis ammonia natural gas washing system according to claim 1 or claim 2, it is characterised in that：The draining of the flash tank (8)
Valve is provided with pipe and blast pipe.
4. ammonia natural gas washing system is synthesized according to claim 3, it is characterised in that：The natural gas wash tower (1)
Valve is provided with blowdown pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510298.XU CN206700808U (en) | 2017-05-09 | 2017-05-09 | Synthesize ammonia natural gas washing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510298.XU CN206700808U (en) | 2017-05-09 | 2017-05-09 | Synthesize ammonia natural gas washing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206700808U true CN206700808U (en) | 2017-12-05 |
Family
ID=60466825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720510298.XU Active CN206700808U (en) | 2017-05-09 | 2017-05-09 | Synthesize ammonia natural gas washing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206700808U (en) |
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2017
- 2017-05-09 CN CN201720510298.XU patent/CN206700808U/en active Active
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