CN207941379U - A kind of gas ammonia transport system - Google Patents
A kind of gas ammonia transport system Download PDFInfo
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- CN207941379U CN207941379U CN201721773954.1U CN201721773954U CN207941379U CN 207941379 U CN207941379 U CN 207941379U CN 201721773954 U CN201721773954 U CN 201721773954U CN 207941379 U CN207941379 U CN 207941379U
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Abstract
The utility model discloses a kind of gas ammonia transport system, which includes parallel arrangement of at least two defeated ammonia pipelines, and setting mass flowmenter and gas ammonia mixer are respectively sequentially connected in series on every defeated ammonia pipeline, compressed air line is also connected on gas ammonia mixer；Connection setting contact pipeline between two adjacent defeated ammonia pipelines, liaison tube road setting communication valve.When mass flowmenter works normally, communication valve remains turned-off, and ammonia directly enters gas ammonia mixer by respective defeated ammonia pipeline, and is reacted into SCR reaction units；When the mass flowmenter on a pipeline is blocked, communication valve is opened, make the gas ammonia mixer on the defeated ammonia pipeline where the mass flowmenter of blocking be passed through adjacent tubes to improve quality the ammonia of flowmeter output, to make the gas ammonia mixer on the defeated ammonia pipeline where the mass flowmenter of blocking keep normal work, all gas ammonia mixers all keep normal operating conditions under any circumstance, in most efficient purification state.
Description
Technical field
The utility model is related to technical field of chemical reaction devices, further relate to a kind of gas ammonia transport system.
Background technology
Two SCR reaction units namely selective-catalytic-reduction denitrified anti-are generally arranged in the unit of one, thermal power plant
Device is answered, at certain temperature, under the action of metallic catalyst, using ammonia or urea as the nitrogen oxygen in reducing agent, with flue gas
Compound (NOX) occur reduction reaction generate harmless nitrogen and water vapour, without reacting with the oxygen in flue gas, to reach
To the purpose of the nitrogen oxides in removal flue gas.
As shown in Figure 1, for a kind of schematic diagram of air/ammonia hybrid system in the prior art；Each SCR reaction units by
Individual gas ammonia pipeline supply ammonia, because of liquefied ammonia production technology problem, can not avoid the problem that there are gas ammonia pipeline knot grease,
Grease is frequently caused to block the SCR reaction units of mass flowmenter and forced outage unilateral side, only one group of SCR reaction unit is normal
Work, causes NOXIt discharges exceeded.
For those skilled in the art, design it is a kind of can avoid cleaning grease when generate at NOXDischarge is super
Mark problem is the current technical issues that need to address.
Utility model content
The utility model provides a kind of gas ammonia transport system, and gas ammonia mixer can be kept to work normally constantly, prevent NOX
Discharge exceeded, concrete scheme is as follows：
A kind of gas ammonia transport system, including parallel arrangement of at least two defeated ammonia pipelines, it is each on every defeated ammonia pipeline
From setting mass flowmenter and gas ammonia mixer is sequentially connected in series, compressed air line, ammonia are also connected on the gas ammonia mixer
With compressed air SCR reaction units are discharged to after the gas ammonia mixer mixes；On two adjacent defeated ammonia pipelines, position
The connection setting contact pipeline between the mass flowmenter and the gas ammonia mixer, the liaison tube road setting contact
Valve, the communication valve are used to control the break-make of the contact pipeline.
Optionally, the communication valve is solenoid valve, and signal is connected to the state sensing being arranged on two defeated ammonia pipelines
Device, the state sensor are used to detect the blocked state of the mass flowmenter；If arbitrary on two defeated ammonia pipelines
The communication valve is then opened in one mass flowmenter blocking.
Optionally, the liaison tube road setting flowmeter, the flowmeter, which is used to detect, flows through the contact pipeline
Ammonia flow；The flow meter signal connects the communication valve to adjust its aperture.
Optionally, the communication valve is manual modulation valve, mixed into the gas ammonia to adjust by the aperture of control valve
The ammonia flow of clutch.
Optionally, the input end of the mass flowmenter is parallel to same pipeline, and the defeated ammonia pipeline passes through same pipeline
Supply ammonia.
Optionally, degree adjustment valve is set on the main road between the mass flowmenter and the gas ammonia mixer, it is described
It is respectively set on main road between degree adjustment valve and the mass flowmenter, the degree adjustment valve and the gas ammonia mixer
Switch valve；The degree adjustment valve can adjust the size of flow, and the switch valve is used to adjust the break-make of pipeline.
Optionally, bypass is arranged in parallel with the main road, setting is for controlling the side for bypassing break-make in the bypass
Road valve；The both ends of the bypass are connected to except the switch valve.
Optionally, one end tie point of the bypass is directly connected to the contact pipeline.
Optionally, it is arranged for controlling the master between the both ends tie point and the gas ammonia mixer of the contact pipeline
The shut-off valve of road break-make.
Optionally, the flow control valve of control uninterrupted is set on the pipeline of the mass flowmenter arrival end.
The utility model provides a kind of gas ammonia transport system, which includes parallel arrangement of at least two defeated ammonia pipes
Road is respectively sequentially connected in series setting mass flowmenter and gas ammonia mixer on every defeated ammonia pipeline, pressure is also connected on gas ammonia mixer
Contracting air pipe line, ammonia first pass through mass flowmenter and enter back into gas ammonia mixer, mix and be diluted with air, ammonia and compression
Air is discharged to SCR reaction units after the mixing of gas ammonia mixer；Connection setting liaison tube between two adjacent defeated ammonia pipelines
Road, the both ends for getting in touch with pipeline are connected to position between mass flowmenter and gas ammonia mixer, liaison tube road setting connection
Network valve, communication valve are used to control the break-make of contact pipeline.
When mass flowmenter works normally, communication valve remains turned-off, and ammonia is directly entered by respective defeated ammonia pipeline
Gas ammonia mixer, and reacted into SCR reaction units；When the mass flowmenter on a pipeline is blocked, communication valve
It opens, so that the gas ammonia mixer on the defeated ammonia pipeline where the mass flowmenter of blocking is passed through adjacent tubes flowmeter of improving quality defeated
The ammonia gone out, it is in office to make the gas ammonia mixer on the defeated ammonia pipeline where the mass flowmenter of blocking keep normal work
All gas ammonia mixers all keep normal operating conditions in the case of what, in most efficient purification state.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of schematic diagram of air/ammonia hybrid system in the prior art；
Fig. 2 is the system construction drawing of the utility model gas ammonia transport system.
Figure includes：
Mass flowmenter 1, gas ammonia mixer 2, contact pipeline 3, communication valve 31, defeated ammonia pipeline 4, compressed air line 5, stream
Gauge 6, main road 71, degree adjustment valve 711, switch valve 712, shut-off valve 713, bypass 72, bypass valve 721, flow control valve 8.
Specific implementation mode
The core of the utility model is to provide a kind of gas ammonia transport system, can keep the normal work of gas ammonia mixer constantly
Make, prevents NOXIt discharges exceeded.
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with attached drawing and
Explanation is described in detail to the gas ammonia transport system of the utility model in specific embodiment.
As shown in Fig. 2, for the system construction drawing of the utility model gas ammonia transport system；The utility model provides a kind of gas
Ammonia transport system, including parallel arrangement of at least two defeated ammonia pipelines 4, every defeated ammonia pipeline 4 is respectively independent, is used to delivering ammonia
Gas；Setting mass flowmenter 1 and gas ammonia mixer 2 are respectively sequentially connected in series on every defeated ammonia pipeline 4, ammonia first passes through mass flow
Meter 1 enters gas ammonia mixer 2 after measuring quality and flow, and compressed air line 5, ammonia and pressure are also connected on gas ammonia mixer 2
Contracting air is discharged to SCR reaction units after the mixing of gas ammonia mixer 2, and ammonia is carried out with compressed air in gas ammonia mixer 2
Dilution enters after discharge and participates in reaction in SCR reaction units.
Connection setting contact pipeline 3 between two adjacent defeated ammonia pipelines 4, the both ends of contact pipeline 3 are connected to phase
Between mass flowmenter 1 and gas ammonia mixer 2 on two adjacent defeated ammonia pipelines 4.It gets in touch with and communication valve 31 is set on pipeline 3, connection
Network valve 31 is used to control the break-make of contact pipeline 3.When the mass flowmenter 1 on the defeated ammonia pipeline of each item 4 works normally, communication valve
31 remain turned-off, and ammonia directly enters gas ammonia mixer 2 by respective defeated ammonia pipeline 4, and enter SCR reaction units and carry out instead
It answers；When the mass flowmenter 1 on a defeated ammonia pipeline 4 is blocked, communication valve 31 is opened, and 1 institute of mass flowmenter of blocking is made
Defeated ammonia pipeline 4 on gas ammonia mixer 2 be passed through adjacent tubes improve quality flowmeter 1 output ammonia, to make blocking
Gas ammonia mixer 2 on defeated ammonia pipeline 4 where mass flowmenter keeps normal work, and all gas ammonias are mixed under any circumstance
Clutch 2 all keeps normal operating conditions, in most efficient purification state.
It is illustrated for only two defeated ammonia pipelines shown in Fig. 2, three or more can be also set as parallel, when some matter
It measures flowmeter 1 to occur after blocking, closes its valve between gas ammonia mixer 2, make the mass flow on same defeated ammonia pipeline 4
Meter 1 and gas ammonia mixer 2 are isolated, and valve is located between the tie point and mass flowmenter 1 of contact pipeline 3；Open communication valve 31
It can receive the ammonia that the mass flowmenter 1 in adjacent tubes flows out afterwards, ensure that all gas ammonia mixers are respectively positioned on normal work
Make state, ensure that the supply of ammonia, can farthest keep original detergent power, reduces the NO of SCR reaction unitsX
Discharge capacity.
Preferably, communication valve 31 is solenoid valve, and signal is connected to the mass flowmenter 1 being arranged on two defeated ammonia pipelines 4,
State sensor is set on mass flowmenter 1, the blocked state of mass flowmenter 1 is detected by state sensor, if two defeated
Communication valve 31 is then opened in any one mass flowmenter 1 blocking on ammonia pipeline 4, and operating process is automatically performed, without artificial dry
In advance, operating process can greatly be simplified.
It gets in touch with and flowmeter 6 is set on pipeline 3, flowmeter 6 is for detecting the ammonia flow for flowing through liaison tube road 3, flowmeter 6
Signal connects communication valve 31 to adjust its aperture, adjusts the aperture of communication valve 31, makes to protect between two adjacent gas ammonia mixers 2
Hold identical flow.The data that the flow that flowmeter 6 detects is detected with mass flowmenter 1 compare and analyze, and connection is calculated
On network pipeline 3 should by ammonia flow, make to keep basis equal into ammonia amount in each gas ammonia mixer 2.
In addition to this, communication valve 31 may be alternatively provided as manual modulation valve, enter gas by the aperture of control valve to adjust
The ammonia flow of ammonia mixer 2, these specific set-up modes should be all included within the scope of protection of this utility model.
Preferably, the input end of mass flowmenter 1 is parallel to same pipeline, and defeated ammonia pipeline 4 supplies ammonia by same pipeline
Gas.
Degree adjustment valve 711, degree adjustment valve 711 are set on the main road 71 between mass flowmenter 1 and gas ammonia mixer 2
Switch valve 712 is respectively set on main road 71 between mass flowmenter 1, degree adjustment valve 711 and gas ammonia mixer 2；Aperture
Regulating valve 711 can adjust the size of flow, and switch valve 712 is used to adjust the break-make of pipeline.
It is arranged in parallel bypass 72 with main road 71, setting is for controlling the bypass valve 721 for bypassing break-make in bypass 72；Bypass 72
Both ends be connected to except switch valve 712, namely bypass one end be connected between switch valve 712 and gas ammonia mixer 5,
The other end is connected between switch valve 712 and mass flowmenter 1.
72 two pipelines of main road 71 and bypass all can under normal circumstances be circulated ammonia by ammonia, main road 71, bypass 72
It closes under normal circumstances；Pass through 72 circulation ammonia of bypass when main road 71 breaks down.It is arranged for adjusting aperture on main road 71
Degree adjustment valve 711, a switch valve 712 for controlling break-make is respectively set in the both sides of degree adjustment valve 711, by opening
Close the break-make that valve 712 controls main road 71；Bypass valve 721 for controlling break-make is set in bypass 72.Main road under normal circumstances
On switch valve 712 stay open, by degree adjustment valve 711 adjust ammonia flow, according to mass flowmenter 1 detect number
According to being adjusted；The switch valve 712 that both sides are closed when regulating valve, which breaks down, needs maintenance, can tear degree adjustment valve 711 open
Maintenance or replacement are unloaded, main road 71 does not circulate ammonia at this time；The bypass valve 721 in bypass 72 is opened simultaneously, bypass 72 is made to pass through ammonia
Gas is re-closing off bypass valve 721 after 711 troubleshooting of degree adjustment valve of main road, passes through main road 71 by bypassing temporarily work
Normal work.
Preferably, one end tie point of bypass 72 is directly connected to contact pipeline 3 in the utility model.Get in touch with pipeline 3
Shut-off valve 713 for controlling 71 break-make of main road is set between both ends tie point and gas ammonia mixer 5, and shut-off valve 713 is controllable
Enter the ammonia break-make of gas ammonia mixer 2 by gas ammonia pipeline 3.
The flow control valve 8 of setting control uninterrupted, enters matter for controlling on the pipeline of 1 arrival end of mass flowmenter
Measure the ammonia flow of flowmeter 1.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice, can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (10)
1. a kind of gas ammonia transport system, which is characterized in that including parallel arrangement of at least two defeated ammonia pipelines (4), described in every
It is respectively sequentially connected in series on defeated ammonia pipeline (4) and mass flowmenter (1) and gas ammonia mixer (2) is set, on the gas ammonia mixer (2)
It is also connected with compressed air line (5), ammonia is discharged to SCR after the gas ammonia mixer (2) mixes with compressed air and reacts dress
It sets；Connect on two adjacent defeated ammonia pipelines (4), between the mass flowmenter (1) and the gas ammonia mixer (2)
Pipeline (3) is got in touch in logical setting, and communication valve (31) is arranged on the contact pipeline (3), and the communication valve (31) is described for controlling
Get in touch with the break-make of pipeline (3).
2. gas ammonia transport system according to claim 1, which is characterized in that the communication valve (31) is solenoid valve, signal
It is connected to the state sensor being arranged on two defeated ammonia pipelines (4), the state sensor is for detecting the quality stream
The blocked state of gauge (1)；It is beaten if any one of mass flowmenter (1) on two defeated ammonia pipelines (4) blocks
Open the communication valve (31).
3. gas ammonia transport system according to claim 2, which is characterized in that flowmeter is arranged on the contact pipeline (3)
(6), the flowmeter (6) is used to detect the ammonia flow for flowing through the contact pipeline (3)；Flowmeter (6) the signal connection
The communication valve (31) is to adjust its aperture.
4. gas ammonia transport system according to claim 1, which is characterized in that the communication valve (31) is manual modulation valve,
By the aperture of control valve to adjust the ammonia flow into the gas ammonia mixer (2).
5. gas ammonia transport system according to claim 1, which is characterized in that the input end of the mass flowmenter (1) is simultaneously
It is coupled to same pipeline, the defeated ammonia pipeline (4) supplies ammonia by same pipeline.
6. gas ammonia transport system according to claim 1, which is characterized in that the mass flowmenter (1) and the gas ammonia
Degree adjustment valve (711), the degree adjustment valve (711) and the quality stream are set on the main road (71) between mixer (2)
Switch valve is respectively set on main road (71) between gauge (1), the degree adjustment valve (711) and the gas ammonia mixer (2)
(712)；The degree adjustment valve (711) can adjust the size of flow, and the switch valve (712) is used to adjust the logical of pipeline
It is disconnected.
7. gas ammonia transport system according to claim 6, which is characterized in that be arranged in parallel bypass with the main road (71)
(72), bypass valve (721) of the setting for controlling the bypass break-make on the bypass (72)；The both ends point of the bypass (72)
It is not connected to except the switch valve (712).
8. gas ammonia transport system according to claim 7, which is characterized in that one end tie point of the bypass (72) and institute
Contact pipeline (3) is stated directly to be connected to.
9. gas ammonia transport system according to claim 8, which is characterized in that the both ends tie point of the contact pipeline (3)
Shut-off valve (713) for controlling the main road (71) break-make is set between the gas ammonia mixer (2).
10. gas ammonia transport system according to claim 9, which is characterized in that the pipe of mass flowmenter (1) arrival end
The flow control valve (8) of road setting control uninterrupted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721773954.1U CN207941379U (en) | 2017-12-18 | 2017-12-18 | A kind of gas ammonia transport system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721773954.1U CN207941379U (en) | 2017-12-18 | 2017-12-18 | A kind of gas ammonia transport system |
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| Publication Number | Publication Date |
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| CN207941379U true CN207941379U (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721773954.1U Active CN207941379U (en) | 2017-12-18 | 2017-12-18 | A kind of gas ammonia transport system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444348A (en) * | 2018-12-24 | 2019-03-08 | 海宁市英德赛电子有限公司 | A kind of high-purity ammon products detection system and its detection method |
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2017
- 2017-12-18 CN CN201721773954.1U patent/CN207941379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444348A (en) * | 2018-12-24 | 2019-03-08 | 海宁市英德赛电子有限公司 | A kind of high-purity ammon products detection system and its detection method |
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