CN104437016B - A kind of gas and water separator for the sampling of VOC on-line monitoring system - Google Patents
A kind of gas and water separator for the sampling of VOC on-line monitoring system Download PDFInfo
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- CN104437016B CN104437016B CN201410620902.5A CN201410620902A CN104437016B CN 104437016 B CN104437016 B CN 104437016B CN 201410620902 A CN201410620902 A CN 201410620902A CN 104437016 B CN104437016 B CN 104437016B
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Abstract
The invention discloses a kind of gas and water separator for the sampling of VOC on-line monitoring system, including sealing the collection bottle of concatenation, drainpipe and Overflow drainage bottle successively；Described collection bottle is provided with sample gas inlet, sample gas outlet and collection bottle drain outlet, and described sample gas inlet is connected with sampling conduit, and sample gas outlet is connected with VOC in-line analyzer；Described Overflow drainage bottle is provided with Overflow drainage bottle entrance and Overflow drainage outlet；Described drainpipe is provided with check valve, and one end of described drainpipe is connected with described collection bottle drain outlet, and the other end is connected with described Overflow drainage bottle entrance.Using the present invention, sample gas temperature in gas bottle is reduced to below dew point, quickly enters VOC in-line analyzer, thus efficiently separate condensed water after separating out condensed water；During condensed water automatically flows into Overflow drainage bottle under gravity, interacted by water sealing (sealing water) pipe and check valve simultaneously, prevent condensed water suck-back, and avoid surrounding air to enter sampling conduit.
Description
Technical field
The present invention relates to VOC on-line monitoring field, particularly relate to a kind of gas and water separator for the sampling of VOC on-line monitoring system.
Background technology
In the high-temp waste gas of industrial production discharge, usually contain volatile organic matter (volatile organic compounds, VOC).During gathering high-temp waste gas detection VOC gas content, sample gas (sample gas) leaves chimney, when temperature is reduced to below dew point, can separate out condensed water.If separated with sample gas by condensed water not in time, condensed water can gradually absorb part can be dissolved in the VOC component of water, not only has influence on certainty of measurement, and condensed water can pollute, block sampling conduit.Therefore, the most effective method should be used to remove the condensed water in gas circuit.
At present, VOC on-line monitoring is mainly with reference to the sampling pre-treating method of flue gas CEMS, sample gas using heat tracing pipe insulation, makes sample gas temperature maintain more than dew point and prevent condensation, sample gas makes sample gas temperature drop under dew point by electronic condenser again before entering analytical instrument and realizes dehumidifying.But, the shortcoming of this method is to need additional electrical heating muff, and when applying due to reality, the limited length system to heat traced pipeline, general requirement can not be more than 50 meters, and limitation is bigger.Therefore, when sample lines is longer, use the mode of heat tracing pipe insulation can not meet actual demand.
Summary of the invention
The technical problem to be solved is, it is provided that a kind of simple in construction, gas and water separator for the sampling of VOC on-line monitoring system, can be effectively realized being automatically separated of sample gas and condensed water, prevent refluence, sealing strong.
In order to solve above-mentioned technical problem, the invention provides a kind of gas and water separator for the sampling of VOC on-line monitoring system, including sealing the collection bottle of concatenation, drainpipe and Overflow drainage bottle successively；Described collection bottle is provided with sample gas inlet, sample gas outlet and collection bottle drain outlet, described collection bottle top is located in described sample gas inlet and sample gas outlet, described collection bottle drain outlet is located at bottom described collection bottle, described sample gas inlet is connected with sampling conduit, and sample gas outlet is connected with VOC in-line analyzer；Described Overflow drainage bottle is provided with Overflow drainage bottle entrance and Overflow drainage outlet, described Overflow drainage bottle entrance and Overflow drainage outlet and is located at described Overflow drainage bottle top；Described drainpipe is provided with check valve, and one end of described drainpipe is connected with described collection bottle drain outlet, and the other end is connected with described Overflow drainage bottle entrance.
As the improvement of such scheme, described VOC in-line analyzer uses negative pressure extracting formula directly to sample, and maintains negative pressure in making described collection bottle.
As the improvement of such scheme, being provided with guide pipe in described collection bottle, described guide pipe top connects with described sample gas inlet, is located at collection bottle bottom bottom described guide pipe.
As the improvement of such scheme, in described Overflow drainage bottle, it is provided with water sealing (sealing water) pipe；Described water sealing (sealing water) pipe top connects with described Overflow drainage bottle entrance, and described water sealing (sealing water) pipe lower submerged is in described Overflow drainage bottle under the liquid level of liquid；Described Overflow drainage bottle entrance and Overflow drainage outlet are located on described liquid level.
As the improvement of such scheme, described collection bottle includes screw thread spins successively upper cover body of catchmenting, catchment bottle and the lower cover that catchments；Described Overflow drainage bottle includes draining upper cover body, draining bottle and the draining lower cover that screw thread spins successively；Described screw thread screw-on place is configured with sealing ring.
As the improvement of such scheme, described in catchment upper cover body, the lower cover that catchments, draining upper cover body and draining lower cover use the aluminium being anodized process to make.
As the improvement of such scheme, described in catchment bottle and draining bottle use polymethyl methacrylate to make.
Improvement as such scheme, the outlet of described sample gas inlet, sample gas is spun by screw thread with upper cover body of catchmenting, described collection bottle drain outlet is spun by screw thread with the lower cover that catchments, and the outlet of described Overflow drainage bottle entrance, Overflow drainage is spun by screw thread with draining upper cover body；Described screw thread screw-on place is configured with elastic seal ring.
As the improvement of such scheme, described drainpipe uses polytetrafluoroethylene (PTFE) to make.
As the improvement of such scheme, described check valve is gravity-held check valve.
Implement the present invention, have the advantages that
The sample gas inlet being used for the gas and water separator of VOC on-line monitoring system sampling is connected with sampling conduit, sample gas outlet is connected with VOC in-line analyzer, sample gas is made to separate out condensed water in collection bottle after leaving chimney, wherein, condensed water is under gravity from flowing to Overflow drainage bottle, separate the sample gas after condensed water and be expelled to VOC in-line analyzer along sample gas outlet, it is achieved sample gas is automatically separated with condensed water.
Correspondingly, water sealing (sealing water) pipe and check valve being combined, the gas and water separator being used in the sampling of VOC on-line monitoring system forms effectively sealing in the case of negative pressure, prevents condensed water suck-back and surrounding air from entering sampling conduit.
It addition, collection bottle and Overflow drainage bottle are formed by multiple parts assemblies respectively, screw thread spins, it is easy to dismantles, assemble；And sealed by sealing ring, the air-tightness of each parts junction is effectively ensured.
Meanwhile, upper cover body of catchmenting, the lower cover that catchments, draining upper cover body, draining lower cover, the bottle that catchments, draining bottle and each parts of drainpipe use different materials to make, with strong points.Specifically, upper cover body of catchmenting, the lower cover that catchments, draining upper cover body and draining lower cover use the aluminium being anodized process to make, and have good corrosion resistance, hardness, wearability, insulating properties；Catchment bottle and draining bottle uses PMMA to make, and has excellent light transmission, electrical insulating property, chemical stability, drainpipe use PFA to make, corrosion-resistant, coefficient of friction is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gas and water separator that the present invention samples for VOC on-line monitoring system；
Fig. 2 is another structural representation of the gas and water separator that the present invention samples for VOC on-line monitoring system.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail.
As it is shown in figure 1, the gas and water separator for the sampling of VOC on-line monitoring system includes sealing the collection bottle 1 of concatenation, drainpipe 2 and Overflow drainage bottle 3 successively.Specifically, described collection bottle 1 is provided with sample gas inlet 4, sample gas outlet 5 and collection bottle drain outlet 6, described collection bottle 1 top is located in described sample gas inlet 4 and sample gas outlet 5, described collection bottle drain outlet 6 is located at bottom described collection bottle 1, described sample gas inlet 4 is connected with sampling conduit, and sample gas outlet 5 is connected with VOC in-line analyzer.Described Overflow drainage bottle 3 is provided with Overflow drainage bottle entrance 7 and Overflow drainage outlet 8, described Overflow drainage bottle entrance 7 and Overflow drainage outlet 8 and is located at described Overflow drainage bottle 3 top.Described drainpipe 2 is provided with check valve 9, and one end of described drainpipe 2 is connected with described collection bottle drain outlet 6, and the other end is connected with described Overflow drainage bottle entrance 7.
During sample gas sampling, being connected with sampling conduit by sample gas inlet 4, sample gas outlet 5 is connected with VOC in-line analyzer.After sample gas leaves chimney, at a temperature of be down to below dew point, separate out condensed water；Then, the sample gas containing condensed water enters sample gas inlet 4 along sampling conduit, and sample gas temperature in collection bottle 1 declines further；Now, condensed water separates out inside collection bottle 1, and certainly flow in Overflow drainage bottle 3 along collection bottle drain outlet 6, check valve 9, Overflow drainage bottle entrance 7 under self gravitation effect；And the sample gas after separated is expelled to VOC in-line analyzer along sample gas outlet 5, it is achieved condensed water efficiently separates with sample gas.
It should be noted that, drainpipe 2 is provided with check valve 9, according to the one-way conduction principle of check valve 9, can be effectively prevented condensate return to collection bottle, and sealing function is strong.
Preferably, described check valve 9 is gravity-held check valve.
Further, described VOC in-line analyzer uses negative pressure extracting formula directly to sample, and maintains negative pressure in making described collection bottle 1.
It should be noted that VOC in-line analyzer uses the pumping carried to take the air in collection bottle 1, maintaining negative pressure in making collection bottle 1, sample gas constantly enters sample gas inlet 4 along sampling conduit, finally enters and realizes in collection bottle 1 separating.
In conjunction with the one-way conduction principle of check valve, the condensed water flowed down from collection bottle 1 can converge at above check valve 9, forms condensation water column.When the gravity of the condensation water column in drainpipe 2 is more than the quality of check valve 9 Intermediate gasket, by pad jack-up, so that condensation flow is to Overflow drainage bottle 3, and exported 8 discharges by the Overflow drainage of Overflow drainage bottle 3；When the gravity of the condensation water column in drainpipe 2 is less than the quality of pad, it is not enough to pad jack-up, pad and valve body body contacts, plays sealing function thus avoid condensate return to collection bottle 1.
As in figure 2 it is shown, be provided with guide pipe 10 in described collection bottle 1, described guide pipe 10 top connects with described sample gas inlet 4, is located at collection bottle 1 bottom bottom described guide pipe.
It should be noted that after the sample gas containing condensed water enters sample gas inlet 4 along sampling conduit, move to below collection bottle 1 down over from collection bottle 1 under the guiding of guide pipe 10, then, discharged by bottom guide pipe 10, and move up to above collection bottle 1.Therefore, under the effect of guide pipe 10, extend sample gas run duration in collection bottle 1, sample gas temperature in collection bottle 1 is made to decline further, and inside collection bottle 1, separate out more condensed water, condensed water flow in Overflow drainage bottle 3 certainly along collection bottle drain outlet 6, check valve 9, Overflow drainage bottle entrance 7 under self gravitation effect, have effectively achieved sample gas and separates with condensed water.
Further, it is provided with water sealing (sealing water) pipe 11 in described Overflow drainage bottle；Described water sealing (sealing water) pipe 11 top connects with described Overflow drainage bottle entrance 7, and described water sealing (sealing water) pipe 11 lower submerged is in described Overflow drainage bottle 3 under the liquid level of liquid；Described Overflow drainage bottle entrance 7 and Overflow drainage outlet 8 are located on described liquid level.
It should be noted that be mounted with liquid in described Overflow drainage bottle 3, described water sealing (sealing water) pipe 11 lower submerged, under liquid level, can effectively maintain the air-tightness within gas and water separator.Described Overflow drainage outlet 8 is located on described liquid level.After condensed water enters Overflow drainage bottle along Overflow drainage bottle entrance 7, when the liquid level in Overflow drainage bottle 3 rise above Overflow drainage export 8 time, condensed water along Overflow drainage outlet 8 discharge Overflow drainage bottles 3, maintains the air-tightness in Overflow drainage bottle 3 automatically simultaneously.
During sample gas sampling, being connected with sampling conduit by sample gas inlet 4, sample gas outlet 5 is connected with VOC in-line analyzer.After sample gas leaves chimney, at a temperature of be down to below dew point, separate out condensed water；Then, sample gas containing condensed water enters sample gas inlet 4 along sampling conduit, and move to below collection bottle 1 down over from collection bottle 1 under the guiding of guide pipe 10, then, discharged by bottom guide pipe 10, and move up to above collection bottle 1, in sample gas motion process, due to collection bottle 1 and environment good effect of heat exchange, making sample gas temperature in collection bottle 1 decline further, condensed water separates out inside collection bottle 1；Now, the condensed water of precipitation flows automatically above check valve 9 along collection bottle drain outlet 6 under self gravitation effect, forms condensation water column.When the gravity of the condensation water column in drainpipe 2 is more than the quality of pad, by pad jack-up, so that condensed water enters Overflow drainage bottle 3 along Overflow drainage bottle entrance 7, when the liquid level in Overflow drainage bottle 3 rise above Overflow drainage export 8 time, condensed water along Overflow drainage outlet 8 discharge Overflow drainage bottle 3, maintains the air-tightness in Overflow drainage bottle 3 automatically simultaneously；When the gravity of the condensation water column in drainpipe 2 is less than the quality of pad, it is not enough to pad jack-up, pad and valve body body contacts, plays sealing function thus avoid condensate return to collection bottle 1；And the sample gas after separated is expelled to VOC in-line analyzer along sample gas outlet 5, it is achieved condensed water efficiently separates with sample gas, makes sample gas after leaving sampled point, naturally carry out air cooling and separate out and separate condensed water, reduce sample gas to greatest extent and contact with condensed water.
As in figure 2 it is shown, described collection bottle 1 includes screw thread spins successively upper cover body 12 of catchmenting, catchment bottle 13 and the lower cover 14 that catchments, described Overflow drainage bottle 3 includes draining upper cover body 15, draining bottle 16 and the draining lower cover 17 that screw thread spins successively.
It should be noted that collection bottle 1 and Overflow drainage bottle 3 are formed by three parts assemblies respectively, it is easy to process, carry, when any parts damages, only need to change damage parts, be not required to complete machine and change.Meanwhile, described screw thread screw-on place is configured with sealing ring, and the air-tightness of each parts junction is effectively ensured.
Further, upper cover body of catchmenting described in 12, the lower cover 14 that catchments, draining upper cover body 15 and draining lower cover 17 use the aluminium being anodized process to make.
It should be noted that be anodized the aluminium of process, the resistant to rust ability of aluminium can be improved, improve aluminium material surface microcellular structure, prevent the VOC component that aluminium material surface absorption is to be measured, prevent from measurement is interfered, it is ensured that the accuracy of measurement.
Further, described catchment bottle 13 and draining bottle 16 uses PMMA(PolymethylMethacrylate, polymethyl methacrylate) make, there is excellent light transmission, electrical insulating property, chemical stability, can effectively prevent VOC from reacting with bottle.
Further, described drainpipe 2 uses PFA(Polyfluoroalkoxy, polytetrafluoroethylene (PTFE)) it is processed into by thermoplastic forming processes, corrosion-resistant, coefficient of friction is low, can make condensed water successfully from flowing to Overflow drainage bottle.
Further, described sample gas inlet 4, sample gas outlet 5 is spun by screw thread with upper cover body 12 of catchmenting, described collection bottle drain outlet 6 is spun by screw thread with the lower cover 14 that catchments, and described Overflow drainage bottle entrance 7, Overflow drainage outlet 8 is spun by screw thread with draining upper cover body 15, it is easy to dismantles, assemble.Meanwhile, described screw thread screw-on place is configured with elastic seal ring, it is ensured that the tightness between each connector and sealing.
As from the foregoing, inlet end for the gas and water separator of VOC on-line monitoring system sampling is connected with sampling conduit, outlet side is connected with VOC in-line analyzer, sample gas is made to separate out condensed water in collection bottle 1 after leaving chimney, wherein, condensed water, under gravity from flowing to Overflow drainage bottle 3, separates the sample gas after condensed water and is expelled to VOC in-line analyzer along sample gas outlet 5, it is achieved sample gas is automatically separated with condensed water.Correspondingly, water sealing (sealing water) pipe 11 and check valve 9 being combined, the gas and water separator being used in the sampling of VOC on-line monitoring system forms effectively sealing in the case of negative pressure, prevents condensed water suck-back and surrounding air from entering gas and water separator.It addition, collection bottle 1 and Overflow drainage bottle 3 are formed by multiple parts assemblies respectively, screw thread spins, it is easy to dismantles, assemble；And sealed by sealing ring, the air-tightness of each parts junction is effectively ensured.Meanwhile, upper cover body of catchmenting 12, the lower cover 14 that catchments, draining upper cover body 15, draining lower cover 17, the bottle 13 that catchments, draining bottle 16 and each parts of drainpipe 2 use different materials to make, with strong points.
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (6)
1. the gas and water separator for the sampling of VOC on-line monitoring system, it is characterised in that include the collection sealing concatenation successively
Water bottle, drainpipe and Overflow drainage bottle；
Described collection bottle is provided with sample gas inlet, sample gas outlet and collection bottle drain outlet, described sample gas inlet and sample gas outlet and is located at institute
Stating collection bottle top, described collection bottle drain outlet is located at bottom described collection bottle, and described sample gas inlet is connected with sampling conduit,
Sample gas outlet is connected with VOC in-line analyzer；
Described Overflow drainage bottle is provided with Overflow drainage bottle entrance and Overflow drainage outlet, and described Overflow drainage bottle entrance and Overflow drainage go out
Mouth is located at described Overflow drainage bottle top；
Described drainpipe is provided with check valve, and one end of described drainpipe is connected with described collection bottle drain outlet, and the other end overflows with described
Stream draining bottle entrance connects；
It is provided with water sealing (sealing water) pipe in described Overflow drainage bottle；Described water sealing (sealing water) pipe top connects, at the bottom of described water sealing (sealing water) pipe with described Overflow drainage bottle entrance
Portion is immersed in described Overflow drainage bottle under the liquid level of liquid；Described Overflow drainage bottle entrance and Overflow drainage outlet are located at described
On liquid level；
Described collection bottle includes screw thread spins successively upper cover body of catchmenting, catchment bottle and the lower cover that catchments；Described Overflow drainage bottle includes
Draining upper cover body, draining bottle and the draining lower cover that screw thread spins successively；Described screw thread screw-on place is configured with sealing ring；
Described upper cover body of catchmenting, the lower cover that catchments, draining upper cover body and draining lower cover use the aluminium being anodized process to make；Described
Catchment bottle and draining bottle uses polymethyl methacrylate to make.
2. the gas and water separator for the sampling of VOC on-line monitoring system as claimed in claim 1, it is characterised in that described
VOC in-line analyzer uses negative pressure extracting formula directly to sample, and maintains negative pressure in making described collection bottle.
3. the gas and water separator for the sampling of VOC on-line monitoring system as claimed in claim 1, it is characterised in that described collection
Being provided with guide pipe in water bottle, described guide pipe top connects with described sample gas inlet, is located under collection bottle bottom described guide pipe
Portion.
4. the gas and water separator for the sampling of VOC on-line monitoring system as claimed in claim 1, it is characterised in that described sample
The outlet of gas entrance, sample gas is spun by screw thread with upper cover body of catchmenting, and described collection bottle drain outlet passes through screw thread with the lower cover that catchments
Spinning, the outlet of described Overflow drainage bottle entrance, Overflow drainage is spun by screw thread with draining upper cover body；
Described screw thread screw-on place is configured with elastic seal ring.
5. the gas and water separator for the sampling of VOC on-line monitoring system as claimed in claim 1, it is characterised in that described row
Water pipe uses polytetrafluoroethylene (PTFE) to make.
6. the gas and water separator for the sampling of VOC on-line monitoring system as described in any one of Claims 1 to 5, its feature exists
In, described check valve is gravity-held check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620902.5A CN104437016B (en) | 2014-11-07 | 2014-11-07 | A kind of gas and water separator for the sampling of VOC on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620902.5A CN104437016B (en) | 2014-11-07 | 2014-11-07 | A kind of gas and water separator for the sampling of VOC on-line monitoring system |
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| Publication Number | Publication Date |
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| CN104437016A CN104437016A (en) | 2015-03-25 |
| CN104437016B true CN104437016B (en) | 2016-08-24 |
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| CN201410620902.5A Active CN104437016B (en) | 2014-11-07 | 2014-11-07 | A kind of gas and water separator for the sampling of VOC on-line monitoring system |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540057A (en) * | 1995-06-30 | 1996-07-30 | Praxair Technology, Inc. | Volatile organic compounds recovery from vent gas streams |
| CN201313018Y (en) * | 2008-06-18 | 2009-09-23 | 王昕竑 | Gas-water separation and overflow drain device of flume exhaust continuous monitoring system |
| CN203370760U (en) * | 2013-07-05 | 2014-01-01 | 楚天科技股份有限公司 | Water sealing type draining device |
| CN103949139B (en) * | 2013-08-19 | 2016-11-23 | 惠州通达流体工程技术有限公司 | A kind of compressed air purifier and compressed air purifying freeze drying plant |
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Effective date of registration: 20210126 Address after: Unit 307, 3rd floor, building 8, area a, Hantian science and Technology City, 17 Shenhai Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province, 528200 Patentee after: FOSHAN HEYUAN ACTIVATED CARBON REGENERATION TECHNOLOGY Co.,Ltd. Patentee after: GUANGDONG CTSY ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: Unit 307, 3rd floor, building 8, area a, Hantian science and Technology City, 17 Shenhai Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province, 528200 Patentee before: FOSHAN HEYUAN ACTIVATED CARBON REGENERATION TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210603 Address after: Unit 302, 3rd floor, building 8, area a, Hantian science and Technology City, 17 Shenhai Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province, 528200 Patentee after: GUANGDONG CTSY ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: Unit 307, 3rd floor, building 8, area a, Hantian science and Technology City, 17 Shenhai Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province, 528200 Patentee before: FOSHAN HEYUAN ACTIVATED CARBON REGENERATION TECHNOLOGY Co.,Ltd. Patentee before: GUANGDONG CTSY ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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