CN108508162A - A kind of circulating air automatic detection discharge and live gas replenishment system - Google Patents
A kind of circulating air automatic detection discharge and live gas replenishment system Download PDFInfo
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- CN108508162A CN108508162A CN201810512916.3A CN201810512916A CN108508162A CN 108508162 A CN108508162 A CN 108508162A CN 201810512916 A CN201810512916 A CN 201810512916A CN 108508162 A CN108508162 A CN 108508162A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1065—Multiple transfer devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1095—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices for supplying the samples to flow-through analysers
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Abstract
The invention discloses a kind of circulating air automatic detection discharge and live gas replenishment systems, including reactor, the side of the reactor is connect with live gas supplement pipeline, upper end is connect with gas outlet duct, and the live gas supplement pipeline is equipped with remote control regulating valve two, the gas outlet duct is equipped with pressure sensor.Advantageous effect is：Automatic-discharging exhaust gas can be reached in the cycle gas system in hydrogenation reaction, it is automatically replenished live gas, complete sequencing, the progress of automation, avoid traditional artificial sampling, the lag for the human error and result that sample presentation analysis is brought, saves cost of labor and device can be allowed to make rapid reaction according to actual conditions.Both the supplement of live gas and the discharge of exhaust gas can be carried out at the same time, and be detected respectively by different sensors, avoid device pressure and wide fluctuations occur for each component gas concentration so that device is smoothly run.
Description
Technical field
The present invention relates to hydrogenation test apparatus fields, and in particular to a kind of circulating air automatic detection discharge and live gas
Replenishment system.
Background technology
In recent years, add hydrogen pilot-plant towards the trend development of automation, hydrogenation plant recycle hydrogen system hydrogen,
The gas concentrations such as ammonia, hydrogen sulfide have conclusive influence to the effect of hydrogenation reaction.All it is to carry out in traditional pilot-plant
Artificial sample, rear sample presentation to laboratory manually carry out the discharge of useless hydrogen in circulating air according to result again into promoting the circulation of qi spectrum analysis.This
Kind method makes gas sampling analysis result seriously lag, and causes the undesirable gas component for influencing to react that cannot timely arrange
It removes.Artificial sample and sample presentation analysis, labor intensive, while error caused by when artificial sample can not exclude artificially to sample.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of circulating air automatic detection discharge and new
Fresh gas replenishment system, can Cycle Automation detection gas, and carry out on line real time, additionally it is possible to carry out the discharge of exhaust gas
It is easy to use with being replenished in time for live gas.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of circulating air automatic detection discharge and live gas replenishment system, including reactor, the side of the reactor
Portion is connect with live gas supplement pipeline, and upper end is connect with gas outlet duct；
One branch of the gas outlet duct connects exhaust emission pipe, another branch's connection gas recycling duct and gas
Delivery pipe is detected, the gas recycling duct is connect with the reactor lower end, and the gas detection delivery pipe and gas are online
Analyzer connects, and gas detection delivery pipe is equipped with pressure reducing valve.
Preferably, the remote control that the exhaust emission pipe is connected with control exhaust emission pipe gas flow is adjusted
Valve one.
Preferably, the live gas supplement pipeline is equipped with the long-range of control live gas supplement pipeline gas flow
Control to adjust valve two.
Preferably, the gas on-line analyzer is connect with one signal of controller, the gas on-line analyzer and control
One signal of device connection processed, the controller one are connect with one signal of remote control regulating valve, the reactor and long-range control
Gas outlet duct between regulating valve one processed is equipped with pressure sensor, which connect with one signal of controller,
And form exhaust emission system.
Preferably, pressure sensing is arranged on pipeline between the side and remote control regulating valve two of the reactor
Device；The pressure sensor is connect with controller binary signal, and the controller two connects with the remote control regulating valve binary signal
It connects, and forms live gas replenishment system.
Preferably, the reactor uses packed column or plate column.
The present invention also provides it is a kind of using the system carry out circulating air automatic detection discharge and live gas supplement
Method, including:
When the gas discharged in reactor needs to recycle, gas is discharged into gas circulation by gas outlet duct
Pipeline and gas detection delivery pipe, the exhaust emission pipe closing, gas are recycled back to reaction by gas recycling duct at this time
Device circular response；Gas enters gas on-line analyzer after the pressure reducing valve decompression in gas detection delivery pipe, and recycle
Gas constantly enters gas on-line analyzer, carries out real-time on-line checking analysis, according to the value being previously set after obtaining a result
The keying of exhaust emission pipe is controlled, exhaust emission pipe is opened when the concentration that detects is more than setting value, carries out exhaust gas
Discharge, when gas analyzer detect concentration be less than setting value, exhaust emission pipe close, circulating air pass through gas circulating tube
It is recycled back to reactor secondary response again.
Further, when the exhaust emission pipe carries out the discharge of exhaust gas, pressure sensor detects that pressure is less than and sets
Definite value, live gas supplement pipeline and open, and live gas enters reactor by live gas supplement pipeline, works as pressure sensor
When detecting pressure recovery to setting value, the live gas supplements closedown of pipeline, and live gas supplement terminates.
Further, the discharge for carrying out exhaust gas should monitor the gas in the gas outlet duct in real time in the process
Pressure calculates one aperture of t moment remote control regulating valve：Exist between one aperture of gas pressure and remote control regulating valve as follows
Functional relation,Wherein Vt valve1It is opened for t moment remote control regulating valve one
Degree, Vt gas1For the gas pressure in t moment gas outlet duct, Vm valve1For one aperture of m moment remote controls regulating valve, utilize
Obtained one aperture of remote control regulating valve of the functional relation is one aperture setting value of t moment remote control regulating valve, will be remote
The control of one aperture of process control regulating valve is the setting value, and one aperture of real-time update remote control regulating valve.
Further, the progress live gas supplement should monitor side and the remote control of reactor in real time in the process
The gas pressure in pipeline between regulating valve two calculates two aperture of t moment remote control regulating valve：Gas pressure and long-range control
There are following functional relation between two aperture of regulating valve processed,Wherein
Vt valve2For two aperture of t moment remote control regulating valve, Vt gas2For t moment reactor side and remote control regulating valve two it
Between pipeline in gas pressure, Vm valveIt is obtained according to the functional relation for two aperture of m moment remote controls regulating valve
Two aperture of remote control regulating valve is two aperture setting value of t moment remote control regulating valve, by two aperture of remote control regulating valve
It is the setting value to control, and two aperture of real-time update remote control regulating valve.
To sum up, the beneficial effects of the present invention are：It is useless that automatic-discharging can be reached in the cycle gas system in hydrogenation reaction
Gas is automatically replenished live gas, complete sequencing, and the progress of automation avoids traditional artificial sampling, and sample presentation analysis is brought
Human error and result lag, save cost of labor and device can be allowed to make rapid reaction according to actual conditions.
Both the supplement of live gas and the discharge of exhaust gas can be carried out at the same time, and are detected, avoided by different sensors respectively
Wide fluctuations occur for device pressure and each component gas concentration so that device is smoothly run.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structure chart of the present invention；
Fig. 2 is exhaust emission system control figure of the present invention；
Fig. 3 is the control figure of live gas replenishment system of the present invention.
The reference numerals are as follows：
1, live gas supplements pipeline；2, remote control regulating valve two；3, reactor；4, pressure sensor；5, long-range control
Regulating valve one processed；6, exhaust emission pipe；7, gas recycling duct；8, pressure reducing valve；9, gas on-line analyzer；10, gas is defeated
Go out pipeline；11, gas detection delivery pipe；12, controller one；13, controller two.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Shown in Fig. 1-Fig. 3, the present invention provides a kind of circulating air automatic detection discharge and live gas supplement systems
System, including reactor 3, the reactor 3 preferably use packed column or plate column.
The side of the reactor 3 is connect with live gas supplement pipeline 1, and upper end and the gas of the reactor 3 export
Pipeline 10 connects, and facilitates the discharge of reaction gas；
10 1 branch of the gas outlet duct connects exhaust emission pipe 6, and exhaust emission pipe 6 facilitates the row of exhaust gas
Go out, another branch's connection gas recycling duct 7 and gas detection delivery pipe 11, the gas recycling duct 7 can be such that gas follows
Loopback reactor 3, the reaction repeated, the exhaust emission pipe 6 are connected with remote control regulating valve 1, the gas
Circulating line 7 is connect with 3 lower end of the reactor, and the gas detection delivery pipe 11 is connect with gas on-line analyzer 9, and gas
Physical examination surveys delivery pipe 11 and is equipped with pressure reducing valve 8, and pressure reducing valve 8 can reduce the pressure of gas, make to be input into gas on-line analyzer 9
Stable gas pressure.
As preferred embodiment, for convenience of the connection between pipeline, the gas recycling duct 7, the gas detection
Delivery pipe 11 is connect with a branch of the gas outlet duct 10 by threeway.
As preferred embodiment, the exhaust emission pipe 6 is connected with the remote of control 6 gas flow of exhaust emission pipe
Process control regulating valve 1.
As preferred embodiment, the live gas supplement pipeline 1 is equipped with control live gas and supplements 1 gas of pipeline
The remote control regulating valve 22 of flow.
As preferred embodiment, for that exhaust gas can be facilitated to discharge, realize automation, the gas on-line analyzer 9 with
One 12 signal of controller connects, and the controller 1 is connect with one 5 signal of remote control regulating valve, the reactor 3
Gas outlet duct 10 between remote control regulating valve 1 is equipped with pressure sensor 4, and pressure sensor 4 can detect
The gas pressure of gas outlet duct 10, the pressure sensor 4 are connect with one 12 signal of controller, and form exhaust gas discharge system
System.
As preferred embodiment, it is automatically replenished live gas for convenience, realizes automation, the gas on-line analyzer
9 connect with 2 13 signal of controller, and the controller 2 13 is connect with 22 signal of remote control regulating valve, the reaction
It is also provided with pressure sensor on pipeline between the side and remote control regulating valve 22 of device 3；The pressure sensor and control
2 13 signal of device connects, and forms live gas replenishment system.The controller 1 and 2 13 composition control of the controller
System.
The present embodiment, which also provides, a kind of to carry out circulating air automatic detection discharge and live gas using above system and supplements
Method, including:
Using the above structure, when work, when the gas discharged in reactor 3 needs to recycle, by gas output tube
Gas is discharged into gas recycling duct 7 and gas detection delivery pipe 11 by road 10, and the remote control regulating valve 1 controls at this time
The exhaust emission pipe 6 is closed, and gas can be recycled back to 3 circular response of reactor by gas recycling duct 7；Gas passes through
Pressure reducing valve 8 in gas detection delivery pipe 11 enters gas on-line analyzer 9 after depressurizing, and the gas recycled constantly enters gas
In-line analyzer 9 can carry out real-time on-line checking analysis, pass through remote control according to the value being previously set after obtaining a result
Regulating valve 1 controls the keying of exhaust emission pipe 6, is adjusted by remote control when the concentration that detects is more than setting value
Valve 1 come control exhaust emission pipe 6 open, carry out the discharge of exhaust gas, when gas analyzer detect concentration be less than setting value,
It is closed by remote control regulating valve 1 to control exhaust emission pipe 6, circulating air again passes by the cycle of gas recycling duct 7
Return the secondary response again of reactor 3.
Further, when remote control regulating valve 1, which controls the exhaust emission pipe 6, carries out the discharge of exhaust gas, pressure
Force snesor 4 detects that pressure is less than setting value, and remote control regulating valve 22 controls live gas supplement pipeline 1 and opens, carries out
Live gas supplements, and live gas enters reactor 3 by live gas supplement pipeline 1, when pressure sensor 4 detects pressure
When being restored to setting value, the remote control control valve 22 controls live gas supplement pipeline 1 and closes, live gas supplement
Terminate, rationality concentration of component caused by can either supplementing exhaust gas discharge declines, and reaction pressure can also be kept to be in ideal value.Into
One step, the discharge for carrying out exhaust gas should monitor the gas pressure in the gas outlet duct, and calculate t in real time in the process
One aperture of moment remote control regulating valve：There are following functional relation between one aperture of gas pressure and remote control regulating valve,Wherein Vt valve1For one aperture of t moment remote control regulating valve, Vt gas1For
Gas pressure in t moment gas outlet duct, Vm valve1For one aperture of m moment remote controls regulating valve, before current time
The one aperture average value of remote control regulating valve at each momentBasic item is set as valve opening, by current t
The gas pressure at moment and before current time the sum of the gas pressure at each moment ratioAs correction factor,
It is one aperture setting value of t moment remote control regulating valve using obtained one aperture of remote control regulating valve of the functional relation,
The control of one aperture of remote control regulating valve is the setting value, and the real-time update in the present system course of work by controller one
One aperture of remote control regulating valve ensures that gas pressure is constant in the gas outlet duct, and generation gas pressure is avoided to uprush
And lead to the danger such as pipeline burst.
Further, the progress live gas supplement should monitor side and the remote control of reactor in real time in the process
The gas pressure in pipeline between regulating valve two calculates two aperture of t moment remote control regulating valve：Gas pressure and long-range control
There are following functional relation between two aperture of regulating valve processed,Wherein
Vt valve2For two aperture of t moment remote control regulating valve, Vt gas2For t moment reactor side and remote control regulating valve two it
Between pipeline in gas pressure, Vm valveFor two aperture of m moment remote controls regulating valve, each moment is remote before current time
Two aperture average value of process control regulating valveBasic item is set as valve opening, by the gas of current t moment
The ratio of pressure and the sum of the gas pressure at each moment before current timeAs correction factor, according to the function
Obtained two aperture of remote control regulating valve of relationship is two aperture setting value of t moment remote control regulating valve, and controller two will
The control of two aperture of remote control regulating valve is the setting value, and real-time update remote control is adjusted in the present system course of work
Two aperture of valve ensures that gas pressure is constant in the pipeline between the side of the reactor and remote control regulating valve two, avoids
Gas pressure occurs to uprush and lead to the danger such as pipeline burst.
The present invention can reach automatic-discharging exhaust gas in the cycle gas system in hydrogenation reaction, be automatically replenished live gas,
Complete sequencing, the progress of automation avoid traditional artificial sampling, and sample presentation analyzes the human error and result brought
Lag, save cost of labor and device can be allowed to make rapid reaction according to actual conditions.The supplement of live gas and
Both discharges of exhaust gas can be carried out at the same time, and be detected respectively by different sensors, and device pressure and each component gas are avoided
Wide fluctuations occur for bulk concentration so that device is smoothly run.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of circulating air automatic detection discharge and live gas replenishment system, it is characterised in that：It is described anti-including reactor
The side of device is answered to be connect with live gas supplement pipeline, upper end is connect with gas outlet duct；
One branch of the gas outlet duct connects exhaust emission pipe, another branch's connection gas recycling duct and gas detection
Delivery pipe, the gas recycling duct are connect with the reactor lower end, the gas detection delivery pipe and gas on-line analysis
Instrument connects, and gas detection delivery pipe is equipped with pressure reducing valve.
2. a kind of circulating air automatic detection discharge and live gas replenishment system according to claim 1, it is characterised in that：
The exhaust emission pipe is connected with the remote control regulating valve one of control exhaust emission pipe gas flow.
3. a kind of circulating air automatic detection discharge and live gas replenishment system according to claim 1, it is characterised in that：
The live gas supplement pipeline is equipped with the remote control regulating valve two of control live gas supplement pipeline gas flow.
4. a kind of circulating air automatic detection discharge and live gas replenishment system according to claim 2, it is characterised in that：
The gas on-line analyzer is connect with one signal of controller, and the controller one connects with one signal of remote control regulating valve
It connects, the gas outlet duct between the reactor and remote control regulating valve one is equipped with pressure sensor, the pressure sensing
Device is connect with one signal of controller, and forms exhaust emission system.
5. a kind of circulating air automatic detection discharge and live gas replenishment system according to claim 3, it is characterised in that：
Pressure sensor is set on pipeline between the side and remote control regulating valve two of the reactor；The pressure sensor with
Controller binary signal connects, and the controller two is connect with the remote control regulating valve binary signal, and forms live gas benefit
Charging system.
6. according to a kind of any one of the claim 1-5 circulating air automatic detection discharges and live gas replenishment system,
It is characterized in that：The reactor uses packed column or plate column.
7. a kind of method carrying out circulating air automatic detection discharge and live gas supplement using system described in claim 1,
It is characterised in that it includes:
When the gas discharged in reactor needs to recycle, gas is discharged into gas recycling duct by gas outlet duct
With gas detection delivery pipe, at this time exhaust emission pipe close, it is anti-that gas by gas recycling duct is recycled back to reactor cycles
It answers；Gas enters gas on-line analyzer after the pressure reducing valve decompression in gas detection delivery pipe, and the gas recycled is continuous
Into gas on-line analyzer, real-time on-line checking analysis is carried out, is controlled according to the value being previously set after obtaining a result useless
The keying of gas discharge tube, when the concentration detected is more than setting value, exhaust emission pipe is opened, and carries out the discharge of exhaust gas, when
Gas analyzer detects that concentration is less than setting value, and exhaust emission pipe is closed, and circulating air is recycled back to by gas recycling duct
Reactor secondary response again.
8. the method according to the description of claim 7 is characterized in that the exhaust emission pipe carry out exhaust gas discharge when, gas
Gas pressure in body discharge tube is less than setting value, and live gas supplements pipeline and opens, and carries out live gas supplement, virgin gas
Body enters reactor by live gas supplement pipeline；It is described when gas pressure in gas emission pipe is restored to setting value
Live gas supplements closedown of pipeline, and live gas supplement terminates.
9. the method according to the description of claim 7 is characterized in that the discharge for carrying out exhaust gas, should monitor in real time in the process
Gas pressure in the gas outlet duct calculates one aperture of t moment remote control regulating valve：Gas pressure and remote control
There are following functional relation between one aperture of regulating valve,Wherein Vt valve1For
One aperture of t moment remote control regulating valve, Vt gas1For the gas pressure in t moment gas outlet duct, Vm valve1It is remote for the m moment
One aperture of process control regulating valve is t moment remote control using obtained one aperture of remote control regulating valve of the functional relation
One aperture setting value of regulating valve, it is the setting value that one aperture of remote control regulating valve, which is controlled, and real-time update remote control tune
Save one aperture of valve.
10. according to the method described in claim 8, it is characterized in that, the progress live gas supplement, the process
In monitor gas pressure in pipeline between the side of reactor and remote control regulating valve two in real time, calculate t moment
Two aperture of remote control regulating valve：There are following functional relation between two aperture of gas pressure and remote control regulating valve,Wherein Vt valve2For two aperture of t moment remote control regulating valve, Vt gas2For
The gas pressure in pipeline between the side and remote control regulating valve two of t moment reactor, Vm valveIt is remotely controlled for the m moment
Two aperture of regulating valve processed is adjusted according to obtained two aperture of remote control regulating valve of the functional relation for t moment remote control
Two aperture setting value of valve, it is the setting value that two aperture of remote control regulating valve, which is controlled, and real-time update remote control regulating valve
Two apertures.
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| CN201810512916.3A CN108508162A (en) | 2018-05-25 | 2018-05-25 | A kind of circulating air automatic detection discharge and live gas replenishment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110562502A (en) * | 2019-08-16 | 2019-12-13 | 上海卫星装备研究所 | Device and method for discharging redundant gas suitable for liquid nitrogen supply pipeline |
| CN114749122A (en) * | 2022-06-15 | 2022-07-15 | 北京凯隆分析仪器有限公司 | Analysis tail gas recovery device |
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