CN101051009B - Analytic method and device for gas with coke tar particles - Google Patents
Analytic method and device for gas with coke tar particles Download PDFInfo
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- CN101051009B CN101051009B CN2007100673675A CN200710067367A CN101051009B CN 101051009 B CN101051009 B CN 101051009B CN 2007100673675 A CN2007100673675 A CN 2007100673675A CN 200710067367 A CN200710067367 A CN 200710067367A CN 101051009 B CN101051009 B CN 101051009B
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Abstract
A method for analyzing gas with tar particles includes leading gas to be analyzing into the first stage liquid contained in sealed container, filtering gas when it is discharged out from the first stage liquid and sending gas with residual tar into the second stage liquid contained in sealed container, discharging gas out from the second stage liquid to remove off residual tar then leading gas into analyzer for obtaining parameter of said gas. The device used for realizing said method is also disclosed.
Description
Technical field
The present invention relates to a kind of analysis method for gases and device, particularly a kind of analytical approach and device that has the gas of coke tar particles.
Background technology
At present, the concentration that in fields such as iron and steel, coking, needs gas componants such as oxygen, carbon monoxide in the measuring process gas usually.But in above-mentioned application, the ducted gas of some processes contains the coke tar particles of more amount, in the tested gas coke tar particles of thickness can various parts attached to analytical instrument on, cause measuring error to increase even can't measure.
The composition of described tar is very complicated, but is broadly divided into light oil and heavy oil; Heavy oil comprises carbolic oil, naphtalene oil, washing oil, a carbolineum, anthracene oil and pitch etc., and the boiling point of light oil is lower than heavy oil.
At the problems referred to above, general measurement way is: earlier the gas in the process pipeline is taken a sample, use solid-state filtrator to filter out coke tar particles in the sample gas then, re-use analytical instrument afterwards and measure gas after filtering.Directly use solid-state filtrator to remove to filter the coke tar particles of thickness, mainly contain following deficiency: if the hole of filtrator is too thin, the coke tar particles of thickness blocking filter very easily then, and then cause the gas downstream analytical instrument can't obtain tested gas.If the hole of filtrator is too thick, then still contain the coke tar particles of more amount in the gas in downstream, cause the gas analysis instrument measuring error in downstream to increase even damage.Conventional solution is: use the high filtrator of filtering accuracy, use high-temperature steam to remove the described solid-state filtrator of blowback then at set intervals, cleaning is attached to the coke tar particles on the filtrator; Such cleaning is thorough inadequately usually, cleans or changes through also pulling down described solid-state filtrator with organic solvent after the use of long period.This method not only maintenance workload is big, and the service efficiency of gas downstream analytical instrument is also lower; Have, the coke tar particles of the thickness that some are small also can see through filtrator again, thereby pollutes the analytical instrument in downstream, not only further increases maintenance workload, the serious analytical instrument that also can damage precision.
Summary of the invention
The technical matters that the present invention solves is to overcome the defective that prior art exists, and provides a kind of maintenance is little, tar is removed the efficient height, cost is low analysis to have the method and apparatus of the gas of coke tar particles.
The objective of the invention is to be achieved by following technical proposals:
A kind of analytical approach that has the gas of coke tar particles said method comprising the steps of:
A. gas to be analyzed is fed in the first order liquid that is contained in the airtight container, gas is being filtered from first order liquid discharge process, and the gas that has residual tar is discharged from liquid level;
B. the gas that has residual tar is passed in the second level liquid that is contained in the airtight container, and the residual tar in the gas is removed;
C. the gas of discharging from the liquid of the second level is passed into gas analysis instrument, analyzes the parameter that obtains gas.
Among the described step b, in the liquid of the second level, adopt the residual tar in filtration or the dissolution mechanism removal gas.
Described first order liquid is water.
Described first order liquid is heated.
Described second level liquid is water or phenixin.
In order to realize said method, the invention allows for a kind of like this analytical equipment that has the gas of coke tar particles, comprise coke tar particles removal device and analytical instrument, described coke tar particles removal device comprises first and second airtight containers; Be installed into tracheae and escape pipe on first and second airtight containers; In first airtight container liquid is housed, and under described liquid levels filtration unit is installed, an end of described draft tube stretches in the liquid under the filtration unit; In second airtight container liquid is housed; Draft tube on the escape pipe on first airtight container and second airtight container is connected; Escape pipe and analytical instrument on second airtight container are connected.
In described second airtight container filtration unit is installed also.
Filtration unit in described second airtight container is installed under the described liquid levels.
Described filtration unit is a screen pack.
Described first or/and the outer periphery of second airtight container has hollow interlayer.
Described first or/and the leakage fluid dram that has valve is equipped with in the bottom of second airtight container, and the steam inlet that has valve is equipped with at the top.
Described first or/and be equipped with inlet on second airtight container.
Compared with prior art, the invention has the beneficial effects as follows: 1) engineering maintenance amount is little, and after gas to be measured was admitted to heating liquid, the viscosity of tar was lowered in the gas, and it is many that the period ratio prior art of blocking filter is grown; In addition, filtrator is installed under the liquid level, and the tar on it can desiccation, thereby can more easily be cleaned by high-temperature steam.When needing the cleaning filtration unit, open leakage fluid dram, bleed off the liquid in the airtight container automatically, open steam inlet then, use high-temperature steam to go to wash away the coke tar particles that the viscosity on filtration unit and the airtight container wall reduces greatly, whole scale removal process can automatically realize; 2) after the cleaning frequency of filtrator prolongs greatly, improved the service efficiency of gas downstream analytical instrument; In addition, through coke tar particles content in the gas after cascade filtration or the dissolving seldom or do not have, the measurement of the analytical instrument in downstream is not constituted influence; Also improved simultaneously the gas downstream analytical instrument measuring accuracy; 3) cost is low, use cheap liquid such as water, and described steam all is standing in applications such as iron and steel, coking.
Description of drawings
Fig. 1 is the structural representation of the analytical equipment of a kind of gas that has a coke tar particles of the present invention;
Fig. 2 is the structural representation of the analytical equipment of the another kind of the present invention gas that has coke tar particles.
Embodiment
Below in conjunction with drawings and Examples, the present invention is done further detailed description.
Embodiment 1:
As shown in Figure 1, a kind of device that is used to realize the analytical approach of the gas that has a coke tar particles of the present invention is applied in the coking field, and described analytical equipment comprises coke tar particles removal device and analytical instrument 3.Described coke tar particles removal device comprises first airtight container 1 and second airtight container 2.Described analytical instrument 3 is semi-conductor laser absorption spectrum analytical instrument.
Be installed into tracheae 11 and escape pipe 12 on described first airtight container 1, first order liquid 13 and filtration unit 14 are equipped with in inside, first order liquid 13 in the present embodiment makes water, and filtration unit 14 adopts the flat panel filter net, is installed under the liquid level of described first order liquid 13.The outer periphery of described first airtight container 1 has hollow interlayer 17, is connected with high-temperature steam in the hollow interlayer 17, is used to heat the first order liquid 13 in first airtight container 1.The upper end cover of described first airtight container 1 is provided with high-temperature steam import 18, and the bottom is provided with water delivering orifice 16, and top is provided with water inlet 15.One end of described draft tube 11 extend in the first order liquid 13 under the filtration unit 14.
Be installed into tracheae 21 and escape pipe 22 on described second airtight container 2, second level liquid 23 and filtration unit 24 are equipped with in inside, second level liquid 23 in the present embodiment is water, filtration unit 24 adopts the flat panel filter net, filtering accuracy is higher than described filtration unit 14, is installed under the liquid level of described second level liquid 23.The outer periphery of described second airtight container 2 has hollow interlayer 27, is connected with recirculated water in the interlayer 27, is used to heat described second level liquid 23, makes the temperature of described second level liquid 23 be unlikely low, as freezing.The upper end cover of described second airtight container 2 is provided with high-temperature steam import 28, and the bottom is provided with water delivering orifice 26, and top is provided with water inlet 25.One end of described draft tube 21 extend in the second level liquid 23 under the filtration unit 24.Described draft tube 21 is connected with escape pipe 12.
Present embodiment has also disclosed a kind of analytical approach that has the gas of coke tar particles, also is the course of work of above-mentioned analytical equipment, said method comprising the steps of:
A. pending gas is passed in the first order liquid 13 in first airtight container 1 by draft tube 11, first order liquid 13 is by the high-temperature steam heating in first airtight container, the 1 external hollow interlayer 17, water temperature is 80 ℃～90 ℃, is in first order liquid 13 subsurface filtration units 14 and also is heated; Coke tar particles in pending gas viscosity in heated water 13 reduces, and the heavy oil composition in the tar bonds together into bulk, and is filtered by described filtration unit 14; And vaporific residual tar (principal ingredient is a light oil) is discharged the water surface by described filtration unit 14 backs, is discharged by escape pipe 12 afterwards;
B. the gas that has residual tar is passed in the second level liquid 23 in second airtight container 2 by draft tube 21, the temperature of described second level liquid 23 is lower than the temperature of described first order liquid 13, it is 30 ℃～40 ℃, residual tar in gas viscosity under this temperature improves, be bonded to bulky grain and, removed the coke tar particles in the gas up hill and dale by described filtration unit 24 filtrations; Gas is discharged from described escape pipe 22;
C. the gas through removing tar feeds in the described analytical instrument 3, and described analytical instrument 3 utilizes the semi-conductor laser absorption spectrum analytical technology to record the concentration of the carbon monoxide in the gas.
Above-mentioned coke tar particles removal device contains more coke tar particles in the hot water in first and second airtight containers 1,2 after work a period of time, also adheres to the coke tar particles of more thickness simultaneously on the filtration unit 14,24.At this moment, stop air inlet in first and second airtight containers 1,2, water delivering orifice 16,26, the first and second airtight containers 1, the 2 interior hot water of opening first and second airtight containers, 1,2 bottoms are discharged from; Steam inlet 18,28 on the airtight container end cap is opened simultaneously, high-temperature steam removes to wash away the coke tar particles that is attached on filtration unit 14,24 and first and second airtight containers, 1,2 walls with certain flow velocity, the viscosity of coke tar particles is reduced, thereby thoroughly remove the coke tar particles in the airtight container 1,2.After removing finished, by 15,25 water fillings in container of the water inlet on the airtight container 1,2, water was respectively by the recirculated water heating in the high-temperature steam in the interlayer 17, the interlayer 27 afterwards.
Embodiment 2:
As shown in Figure 2, a kind of device that is used to realize the analytical approach of the gas that has a coke tar particles of the present invention, be applied in the iron and steel domain, as different from Example 1: described second airtight container, the 2 outer interlayers that no longer are provided with, filtration unit also no longer is installed in second airtight container 2, and second level liquid 29 is phenixin.
Present embodiment has also disclosed a kind of analytical approach that has the gas of coke tar particles, also is the course of work of above-mentioned analytical equipment, said method comprising the steps of:
A. detailed process is identical with step a among the embodiment 1;
B. the gas that has residual tar (principal ingredient is a light oil) is passed in the second level liquid 23 in second airtight container 2, and the residual tar in the gas is dissolved in the described second level liquid 29, thereby has removed the coke tar particles in the gas; Gas is discharged from described escape pipe 22;
C. detailed process is identical with step c among the embodiment 1.
Embodiment 3:
A kind of device that is used to realize the analytical approach of the gas that has a coke tar particles of the present invention, be applied in the iron and steel domain, as different from Example 2: installation filtration unit under the liquid level in second airtight container, described filtration unit adopts the flat panel filter net, and filtering accuracy is higher than the filtration unit in first airtight container.
Present embodiment has also disclosed a kind of analytical approach that has the gas of coke tar particles, also is the course of work of above-mentioned analytical equipment, said method comprising the steps of:
A. detailed process is identical with step a among the embodiment 2;
B. the gas that has residual tar (principal ingredient is a light oil) is passed in the second level liquid in second airtight container, residual tar in the gas is dissolved in the liquid of the described second level, that does not have enough time to dissolve on a small quantity is filtered by described filtration unit, thereby removes the coke tar particles in the gas up hill and dale; Gas is discharged from described escape pipe 22;
C. detailed process is identical with step c among the embodiment 1.
It is pointed out that above-mentioned embodiment should not be construed as limiting the scope of the invention.Analytical instrument among the embodiment adopts the semi-conductor laser absorption spectrum analytical technology, can certainly be other technology, as electrochemical process etc.Key of the present invention is, gas to be analyzed fed in the first order liquid that is contained in the airtight container, filters through being installed in subsurface filtration unit, and the gas that has residual tar is discharged from liquid level; The gas that has residual tar feeds in the second level liquid that is contained in the airtight container, and the residual tar in the gas is removed; Discharge the gas of second level liquid and send into analytical instrument, and then obtain the parameter of gas.Under the situation that does not break away from spirit of the present invention, any type of change that the present invention is made all should fall within protection scope of the present invention.
Claims (10)
1. analytical approach that has the gas of coke tar particles said method comprising the steps of:
A. gas to be analyzed is fed in the first order liquid that is contained in the airtight container, under the liquid level of described first order liquid, filtration unit is installed, gas is being filtered by described filtration unit from first order liquid discharge process, and the gas that has residual tar is discharged from liquid level;
B. the gas that has residual tar is passed in the second level liquid that is contained in the airtight container, and the residual tar in the gas is removed;
C. the gas of discharging from the liquid of the second level is passed into gas analysis instrument, analyzes the parameter that obtains gas.
2. method according to claim 1 is characterized in that: among the described step b, adopt the residual tar in filtration or the dissolution mechanism removal gas in the liquid of the second level.
3. method according to claim 1 is characterized in that: described first order liquid is water.
4. according to claim 1 or 2 or 3 described methods, it is characterized in that: described first order liquid is heated.
5. according to claim 1 or 2 or 3 described methods, it is characterized in that: described second level liquid is water or phenixin.
6. an analytical equipment that has the gas of coke tar particles comprises coke tar particles removal device and analytical instrument; It is characterized in that: described coke tar particles removal device comprises first and second airtight containers; Be installed into tracheae and escape pipe on first and second airtight containers; In first airtight container liquid is housed, and under described liquid levels filtration unit is installed, an end of described draft tube stretches in the liquid under the filtration unit; In second airtight container liquid is housed; Draft tube on the escape pipe on first airtight container and second airtight container is connected; Escape pipe and analytical instrument on second airtight container are connected.
7. analytical equipment according to claim 6 is characterized in that: in described second airtight container filtration unit is installed also.
8. analytical equipment according to claim 7 is characterized in that: the filtration unit in second airtight container is the flat panel filter net.
9. according to claim 6 or 7 or 8 described analytical equipments, it is characterized in that: the filtration unit in second airtight container is installed under the liquid level of liquid in second airtight container.
10. according to claim 6 or 7 or 8 described analytical equipments, it is characterized in that: described first or/and the outer periphery of second airtight container has hollow interlayer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100673675A CN101051009B (en) | 2007-02-14 | 2007-02-14 | Analytic method and device for gas with coke tar particles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100673675A CN101051009B (en) | 2007-02-14 | 2007-02-14 | Analytic method and device for gas with coke tar particles |
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| CN101051009A CN101051009A (en) | 2007-10-10 |
| CN101051009B true CN101051009B (en) | 2010-10-13 |
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Non-Patent Citations (2)
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| JP特开2003-322597A 2003.11.14 |
| JP特开2004-101305A 2004.04.02 |
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Effective date of registration: 20090612 Address after: Hangzhou City, Zhejiang province Binjiang District Binhu road 760 post encoding: 310052 Applicant after: Focused Photonics (Hangzhou) Inc. Address before: Hangzhou City, Zhejiang Province, Binjiang District Lake Road 1180 No. 3 Building 2 floor post encoding: 310052 Applicant before: Wang Jian |
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