CN216208846U - Preceding stage dewatering treatment device of flue gas VOC analyzer - Google Patents
Preceding stage dewatering treatment device of flue gas VOC analyzer Download PDFInfo
- Publication number
- CN216208846U CN216208846U CN202122302249.6U CN202122302249U CN216208846U CN 216208846 U CN216208846 U CN 216208846U CN 202122302249 U CN202122302249 U CN 202122302249U CN 216208846 U CN216208846 U CN 216208846U
- Authority
- CN
- China
- Prior art keywords
- analyzer
- flue gas
- analysis appearance
- type filter
- membrane type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a pre-stage dewatering treatment device of a flue gas VOC analyzer, which relates to the technical application field of flue gas VOC on-line monitoring instruments of petrochemical production equipment, in particular to the environmental protection field of flue gas VOC analysis and discharge of chimney, and comprises a boiler discharge chimney, a high-temperature box, a dewatering membrane type filter, a condensing tank and an analyzer. The boiler exhaust chimney, the high-temperature box and the analyzer are sequentially connected, a dewatering membrane type filter is connected between the high-temperature box and the analyzer and close to an inlet of the analyzer, an outlet pipeline at the upper part of the dewatering membrane type filter is connected with the analyzer, and the lower part of the dewatering membrane type filter is connected with a condensing tank. The flue gas sample gas after being dewatered by using the utility model enters the analyzer, thereby prolonging the service life of the chromatographic column of the analyzer, improving the accuracy of analysis and measurement data, reducing the frequency of replacing the chromatographic column and saving the cost for purchasing the chromatographic column.
Description
Technical Field
The utility model relates to the technical field of the application of online monitoring instruments for flue gas VOC of petrochemical production equipment, in particular to the field of environmental protection of flue gas VOC analysis and discharge of a chimney.
Background
The VOC on-line analyzer is under long-term operation condition, because the boiler of gathering discharges and contains a large amount of steam in the flue gas sample gas, flue gas humidity is generally all at 10% even higher, present technique is carrying out whole pipeline heat tracing basically, temperature control avoids appearing the condensation about 130 ℃, but in the in-service use process, before the flue gas gets into the VOC analyzer, can avoid having a small segment naked pipeline A and flowmeter pipeline B, under this condition, naked pipeline temperature reduces rapidly, the comdenstion water can appear, the comdenstion water enters into VOC analysis appearance chromatographic column along with the carrier gas, and the chromatographic column performance can be because the influence variation of water is invalid even, thereby lead to the great error to appear in the analysis data, influence the technological adjustment of device and environmental protection monitoring's meaning. How to remove the moisture in the flue gas sample gas is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide a pre-stage dewatering treatment device for a flue gas VOC analyzer, so as to overcome the disadvantages in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a flue gas VOC analysis appearance preceding stage dewatering processing apparatus which characterized in that: comprises a boiler discharge chimney, a high-temperature box, a dewatering membrane type filter, a condensing tank and an analyzer. The boiler emission chimney, the high-temperature box and the analyzer are sequentially connected, a water removal membrane type filter is connected to the position, close to an inlet of the analyzer, between the high-temperature box and the analyzer, the upper portion of the water removal membrane type filter is connected with the analyzer, and the lower portion of the water removal membrane type filter is connected with the condensing tank.
Preferably, a hand valve is arranged on a pipeline between the lower part of the water removal membrane type filter and the condensation.
Preferably, a drain valve is arranged at the bottom of the condensing tank.
Preferably, the hand valve is a ball valve.
Preferably, the hand valve and the drain valve are provided as automatic valves.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and concretely, according to the technical scheme, the dewatering membrane type filter, the hand valve, the condensing tank and the liquid discharge valve are additionally arranged before the original process sample gas enters the analyzer, when the sample gas passes through the dewatering membrane type filter, the water vapor condensed by the filtering membrane is condensed and dripped to the condensing tank by gravity, the connection of the process between the condensing tank and the dewatering membrane type filter is cut off by the hand valve, the process monitoring is not influenced, and the liquid is discharged periodically, so that the service life of the instrument chromatographic column is prolonged, the accuracy of analysis and measurement data is improved, the frequency of replacing the chromatographic column is reduced, and the cost for purchasing the chromatographic column is saved. Meanwhile, as the process monitoring factors are non-methane total hydrocarbon and benzene series substances, and the two substances are hardly dissolved in water, the technical scheme of the utility model completely meets the requirements of related national environmental protection regulations.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a partial diagram of the condensation of a prior art original system.
FIG. 2 is a partial system diagram of the present invention after modification.
FIG. 3 is a schematic view of a pre-stage water removal processing device of a flue gas VOC analyzer according to an embodiment of the present invention.
The attached drawings indicate the following:
1. boiler exhaust chimney 2, high temperature box
3. Dewatering membrane type filter 4, hand valve
5. Condensing tank 6 and drain valve
7. An analyzer.
Detailed Description
Referring to fig. 2 and 3, a specific structure of a pre-stage dewatering processing device of a flue gas VOC analyzer according to a preferred embodiment of the present invention is shown, which includes a boiler exhaust stack 1, a high temperature tank 2, a dewatering membrane filter 3, a hand valve 4, a condensing tank 5, a drain valve 6 and an analyzer 7. The boiler discharge chimney 1, the high-temperature box 2 and the analyzer 7 are connected through a sampling high-temperature heat tracing pipe in sequence, a water removal membrane type filter 3 is connected to the middle of the high-temperature box 2 and the analyzer 7 close to an inlet of the analyzer, the upper portion of the water removal membrane type filter 3 is connected with the analyzer 7, the lower portion of the water removal membrane type filter 3 is connected with a condensing tank 5, and a liquid discharge valve 6 is arranged at the lower portion of the condensing tank 5.
According to the utility model, the water removal membrane type filter 3 filters and aggregates water condensed from the sample gas at the outlet of the high temperature box 2 due to temperature reduction into water drops, the water drops drop into the condensation tank 5 by means of the self gravity of the water drops, and the dried sample gas after water removal is discharged from the upper part of the water removal membrane type filter 3 and enters the analyzer 7.
It should be noted that the rear end sample gas of the pre-stage dewatering treatment device of the flue gas VOC analyzer is pumped by a pump, when a certain amount of condensate is accumulated in the condensate tank 5 and needs to be discharged, the hand valve 4 is closed to prevent the condensate from being sucked backwards, and then the liquid discharge valve 6 is opened to discharge the liquid.
In the practical application of the hand valve 4 and the liquid discharge valve 6, the automatic valve can be set according to the liquid discharge frequency to automatically discharge liquid, so that the labor cost in the production operation process is reduced.
The operation steps of the utility model are as follows:
the sample gas of boiler emission chimney 1 is through sampling high temperature pipeline to high temperature case 2, and the component analysis carries out in reaching analysis appearance 7 through water removal membrane filter 3 again, and the moisture that carries in the sample gas flows into condensation jar 5 from water removal membrane filter 3 lower extreme and collects, when the manual work is patrolled and examined, discharges the water in condensation jar 5, closes hand valve 4 and opens flowing back valve 6 again and discharge water, closes flowing back valve 6 and opens hand valve 4 again after finishing discharging. During the liquid discharge operation, the sample gas normally enters the analyzer 7 for analysis, and the measurement process is not affected.
In summary, the design of the present invention is characterized in that a water removal membrane filter 3, a hand valve 4, a condensation tank 5 and a liquid discharge valve 6 are additionally installed before the sample gas enters the analyzer 7, when the sample gas passes through the water removal membrane filter 3, the water vapor condensed by the filtration membrane drips to the condensation tank by gravity, the connection of the flow path between the condensation tank and the water removal membrane filter 3 is cut off by the hand valve 4, the process monitoring is not affected, and the liquid is periodically discharged, so that the service life of the instrument chromatographic column is prolonged and the accuracy of the analysis and measurement data is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (5)
1. The utility model provides a flue gas VOC analysis appearance preceding stage dewatering processing apparatus which characterized in that: including boiler emission chimney (1), high temperature box (2), removal water membrane filter (3), condensate tank (5) and analysis appearance (7), boiler emission chimney (1), high temperature box (2) and analysis appearance (7) connect gradually, are close to analysis appearance entrance and insert removal water membrane filter (3) in the middle of high temperature box (2) and analysis appearance (7), and removal water membrane filter (3) upper portion is connected with analysis appearance (7), and removal water membrane filter (3) lower part is connected with condensate tank (5).
2. The backing stage dewatering treatment device for the flue gas VOC analyzer of claim 1, further comprising: a hand valve (4) is arranged between the lower part of the dewatering membrane type filter (3) and the condensing tank (5).
3. The backing stage dewatering processing device of flue gas VOC analysis appearance of claim 2, characterized in that: and a liquid discharge valve (6) is arranged at the bottom of the condensing tank (5).
4. The backing stage dewatering processing device of flue gas VOC analysis appearance of claim 2, characterized in that: the hand valve (4) is a ball valve.
5. The backing stage dewatering processing device of flue gas VOC analysis appearance of claim 3, characterized in that: the hand valve (4) or the liquid discharge valve (6) is set to be an automatic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302249.6U CN216208846U (en) | 2021-09-23 | 2021-09-23 | Preceding stage dewatering treatment device of flue gas VOC analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302249.6U CN216208846U (en) | 2021-09-23 | 2021-09-23 | Preceding stage dewatering treatment device of flue gas VOC analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216208846U true CN216208846U (en) | 2022-04-05 |
Family
ID=80922496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122302249.6U Active CN216208846U (en) | 2021-09-23 | 2021-09-23 | Preceding stage dewatering treatment device of flue gas VOC analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216208846U (en) |
-
2021
- 2021-09-23 CN CN202122302249.6U patent/CN216208846U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209117529U (en) | A kind of VOCs on-line monitoring system | |
| CN101551378B (en) | Method and equipment for detecting oxygen content in coal gas | |
| CN101644643A (en) | Sample air pretreatment device for coke furnace inorganization emission source and method thereof | |
| CN207147844U (en) | The flue gas pretreatment system of flue gas analyzer | |
| CN210487693U (en) | Positive pressure type pollution source VOC on-line monitoring system | |
| CN206696248U (en) | A kind of volatile organic matter on-Line Monitor Device | |
| CN216208846U (en) | Preceding stage dewatering treatment device of flue gas VOC analyzer | |
| CN210037385U (en) | Coke oven gas benzene series on-line analysis pretreatment system | |
| CN213689118U (en) | Vacuum reflux type flue gas pretreatment equipment and flue gas continuous emission monitoring system comprising same | |
| CN210923164U (en) | Sampling pipeline of atmosphere analyzer in furnace | |
| CN211025478U (en) | In-situ flue gas pretreatment system | |
| CN110018038B (en) | Coke oven gas ammonia gas online analysis pretreatment system and application method thereof | |
| JP3233611U (en) | Exhaust gas measurement system based on gas purification equipment | |
| CN206832780U (en) | A kind of wasted nickel catalyst device | |
| CN201488901U (en) | Sample gas pretreatment device for inorganization emission source of coke furnace | |
| CN209911068U (en) | Coke oven gas hydrogen sulfide on-line analysis pretreatment system | |
| CN114323888A (en) | Flue gas pretreatment device | |
| CN210014965U (en) | Online detection pretreatment equipment for solution in metallurgical industry | |
| CN210487692U (en) | Negative pressure formula pollution sources VOC on-line monitoring system | |
| CN113797723A (en) | Flue gas pretreatment system and method for boiler test | |
| CN203688323U (en) | Integral full-automatic pre-treatment device for gas analysis | |
| CN220552678U (en) | Pretreatment device of metallurgical furnace flue gas online analysis system | |
| CN219608868U (en) | Online multi-gas detection device | |
| CN212275678U (en) | VOCs on-line monitoring system | |
| CN105158029A (en) | On-line coke oven gas preprocessing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |