CN206566695U - A kind of VOC on-line monitoring systems and governing system - Google Patents
A kind of VOC on-line monitoring systems and governing system Download PDFInfo
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- CN206566695U CN206566695U CN201720084044.6U CN201720084044U CN206566695U CN 206566695 U CN206566695 U CN 206566695U CN 201720084044 U CN201720084044 U CN 201720084044U CN 206566695 U CN206566695 U CN 206566695U
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Abstract
The utility model discloses a kind of VOC on-line monitoring systems and governing system, including sample gas compressor, catalytic combustion burner, first triple valve, second triple valve, 3rd triple valve, 4th triple valve, 5th triple valve, two the first chromatographic columns, two the second chromatographic columns, some heaters, desorption gas compressor, VOC on-line computing models and tail gas discharging pipe, the input of the sample gas compressor is connected with sample gas air supply pipe, front port of the output end of the sample gas compressor respectively with VOC on-line computing models and the second triple valve is connected, the output end of the catalytic combustion burner is connected with the upper port of the first triple valve and the lower port of the 3rd triple valve respectively, the lower port of first triple valve is connected with the upper port of the second triple valve, compared with prior art, VOC change in concentration can be monitored in time, the flow velocity of various gases is adjusted in time, to reach optimal regulation effect, and with automation, continuity, reliability, the characteristics of real-time.
Description
【Technical field】
The utility model is related to the technical field of waste gas treatment equipment, particularly a kind of VOC on-line monitoring systems and improvement
The technical field of system.
【Background technology】
The core technology that existing VOC is administered includes zeolite runner+RTO technologies, RCO technologies etc..Zeolite runner+RTO skills
Art is that a kind of technique is simple, and floor space is small, the low organic waste gas treatment system of operating cost, mainly employs advanced heat and hands over
Technology and honeycomb ceramic heat-storing material are changed, efficient advanced heat-exchange system ensure that effective recovery of calory burning.VOCs
It after waste gas is by hydrophobic zeolite concentration runner, can effectively be adsorbed in zeolite, reach the purpose of removal.It is dense after desorption
Contracting organic exhaust gas, which delivers to incinerator and is heated to 760-820 DEG C, carries out burning conversion into carbon dioxide and moisture discharge to big
In gas.RCO technologies are typical gas-solid-phase catalytic reactions, the activation energy of its reaction by catalyst degradation, make it relatively low
200-300 DEG C of initiation temperature at carry out flameless combustion, organic substance oxidation occurs in solid catalyst surface, organic exhaust gas
Organic pollution occur nonflame oxidizing fire under relatively low initiation temperature, oxidation Decomposition is carbon dioxide and water.
Although above VOC Treatment process can preferably carry out VOCs treatment, it need on regulation effect
Improve, it is also to be reduced in operating cost.
【Utility model content】
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of VOC on-line monitoring systems and controls
Reason system, is administered by VOC and on-line monitoring system is combined, VOC change in concentration can be monitored in time, various gas are adjusted in time
The flow velocity of body, to reach optimal regulation effect, and operating cost is low.
To achieve the above object, the utility model proposes a kind of VOC on-line monitoring systems and governing system, governing system
Including sample gas compressor, catalytic combustion burner, the first triple valve, the second triple valve, the 3rd triple valve, the 4th triple valve, the 5th
Triple valve, two the first chromatographic columns, two the second chromatographic columns, some heaters, desorption gas compressor and tail gas discharging pipe, institute
The input for stating sample gas compressor is connected with sample gas air supply pipe, output end and the second triple valve of the sample gas compressor
Front port connection, the input of catalytic combustion burner upper port respectively with the first triple valve and the lower end of the 3rd triple valve
Mouth connection, the lower port of first triple valve is connected with the upper port of the second triple valve, the lower port of second triple valve
Be connected with the upper port of the 3rd triple valve, the inputs of described two first chromatographic columns respectively with the first triple valve and the 3rd threeway
The rear port connection of valve, the input of the output ends of described two first chromatographic columns respectively with two the second chromatographic columns is connected, institute
State front port of the output end of two the second chromatographic columns respectively with the 4th triple valve and the 5th triple valve to be connected, the desorption gas
The output end of compressor is connected with the upper port of the 4th triple valve and the lower port of the 5th triple valve respectively, the 4th triple valve
It is connected with the rear port of the 5th triple valve with tail gas discharging pipe, the bottom part down of first chromatographic column and the second chromatographic column is equal
Provided with heater, VOC on-line monitoring systems include gas chromatograph and data workstation, the drain of the catalytic combustion burner with
Gas chromatograph is connected, and the output end of described two first chromatographic columns be connected with gas chromatograph, the 4th triple valve with
The rear port of 5th triple valve is connected with gas chromatograph.
Preferably, also including environmentally friendly office system, the environmentally friendly office system is connected with data workstation.
Preferably, first triple valve, the second triple valve, the 3rd triple valve, the 4th triple valve and the 5th triple valve
It is automatic valve.
The beneficial effects of the utility model：The utility model can monitor VOC change in concentration in time, and various gas are adjusted in time
The flow velocity of body, to reach optimal regulation effect, and operating cost is low, with automation, continuity, reliability, real-time
The characteristics of.
Feature and advantage of the present utility model will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is the structural representation of a kind of VOC on-line monitoring systems of the utility model and governing system.
In figure：1- sample gas compressor, 2- catalytic combustion burners, the triple valves of 3- first, the triple valves of 4- second, the threeways of 5- the 3rd
Valve, the triple valves of 6- the 4th, the triple valves of 7- the 5th, the chromatographic columns of 8- first, the chromatographic columns of 9- second, 10- heaters, 11- desorption gas
The environmentally friendly office system of compressor, 12- on-line gas chromatographies, 13- tail gas discharging pipes, 14- data workstations, 15-.
【Embodiment】
Refering to Fig. 1, a kind of VOC on-line monitoring systems of the utility model and governing system, governing system include sample pressure
Contracting machine 1, catalytic combustion burner 2, the first triple valve 3, the second triple valve 4, the 3rd triple valve 5, the 4th triple valve 6, the 5th triple valve
7th, two the first chromatographic columns 8, two the second chromatographic columns 9, some heaters 10, desorption gas compressor 11 and tail gas discharging pipes
13, the input of the sample gas compressor 1 is connected with sample gas air supply pipe, the output end of the sample gas compressor 1 and the
The front port connection of two triple valves 4, the upper port and the 3rd of the input of the catalytic combustion burner 2 respectively with the first triple valve 3
The lower port connection of triple valve 5, the lower port of first triple valve 3 is connected with the upper port of the second triple valve 4, and described second
The lower port of triple valve 4 is connected with the upper port of the 3rd triple valve 5, and the inputs of described two first chromatographic columns 8 is respectively with
The rear port connection of one triple valve 3 and the 3rd triple valve 5, the output ends of described two first chromatographic columns 8 respectively with two second
The input connection of chromatographic column 9, the output ends of described two second chromatographic columns 9 respectively with the 4th triple valve 6 and the 5th triple valve 7
Front port connection, the output end of the desorption gas compressor 11 upper port respectively with the 4th triple valve 6 and the 5th threeway
The lower port connection of valve 7, the rear port of the 4th triple valve 6 and the 5th triple valve 7 is connected with tail gas discharging pipe 13, described
The bottom part down of first chromatographic column 8 and the second chromatographic column 9 is all provided with having heaters 10, and VOC on-line monitoring systems include gas-chromatography
Instrument 12 and data workstation 14, the drain of the catalytic combustion burner 2 are connected with gas chromatograph 12, described two first chromatograms
The output end of post 8 is connected with gas chromatograph 12, and the rear port of the 4th triple valve 6 and the 5th triple valve 7 is and gas phase
Chromatograph 12 is connected, in addition to environmentally friendly office system 15, and the environmentally friendly office system 15 is connected with data workstation 14, and the described 1st
Port valve 3, the second triple valve 4, the 3rd triple valve 5, the 4th triple valve 6 and the 5th triple valve 7 are automatic valve.
Utility model works process：
In the course of the work, VOC waste gas first passes through first for a kind of VOC on-line monitoring systems of the utility model and governing system
After the adsorption cleaning of 8 and second chromatographic column of chromatographic column 9, monitor tail gas up to standard through VOC on-line monitoring systems and pass through the high idle discharge of blower fan
Put.The first chromatographic column 8 and the second chromatographic column 9 of saturation are after desorbing gas-catalysis burning, the organic exhaust gas generation of absorption thereon
CO2 and H2O, the first chromatographic column 8 and the second chromatographic column 9 of saturation regain adsorption capacity, recycle.
Specific processing step is as follows:
Using sample gas compressor 1 and collecting pipe, VOC gases are pumped into activated carbon adsorber (activated carbon adsorber
For the first chromatographic column 8 being cascaded and the second chromatographic column 9), VOC gases are adsorbed with activated carbon at absorption scene,
The changeable activated carbon adsorber that situ configuration two is installed in parallel, to ensure that tail gas absorption is ceaselessly continuously run.Each
Tower configuration automatic switch triple valve is adsorbed, automatic switch three can be closed in the case of activated carbon is non-stop-machine close to after saturation
Port valve carries out the replacing of activated carbon.
Activated carbon adsorber is monitored by VOC on-line monitoring systems to its adsorption effect, is set when tail gas concentration reaches
After definite value (saturation value), such as 30mg/M3 is changed to two activated carbon adsorbers.Configure two tower charcoal absorptions, saturation
Direct-on-line regeneration (desorption) afterwards, another tower is then regenerated.(also may be selected offline mode), and can open simultaneously it is a set of or
Many set systems are adsorbed.
First chromatographic column 8 and the second chromatographic column 9 carry out desorption and regeneration by the way of the desorption of heater 10 to activated carbon.The
Temperature-controllable in one chromatographic column 8 and the second chromatographic column 9, temperature sets desorption program on control computer, is at 90 to 110 DEG C
Concentration of the system meeting automatically to each adsorption tower is monitored on-line.
Untreated good adsorption tower is heated up, and the flow and temperature of gas are desorbed by PID control, in adsorption tower
VOC parsed.
VOC after parsing enters the progress catalysis burning of catalytic combustion burner 2 with helping after combustion gas mixing, uses precious metal catalyst
Agent, is catalyzed 300 DEG C of the temperature inside the box, and cold start-up to uptime is less than 50 minutes.
The tail gas that catalytic combustion burner 2 comes out carries out heat exchange by heat exchanger with cold combustion-supporting gas, it is ensured that exhaust temperature
Less than 110 DEG C, and improve heat utilization ratio.Tail gas emptying concentration is less than environmental requirement.
Multi-point detection system, mainly monitors the concentration and the VOC concentration of each floss hole of the VOC between each dividing plate.
| Performance indications | Monitoring point | Monitoring mode | Response time | Detector | Test limit |
| Numerical value | It is multiple | Circulatory monitoring | <200s/ points | FID | 0.1ppm |
Consider energy-saving design and energy recovery, for same treating capacity, operation cost is about direct catalysis combustion
1/10 or so of burning method, the 1/5 of charcoal absorption.
Using waste heat, the energy is saved.The nitrogen of the solution adsorption desorption of activated carbon is heated by hot-air in the present apparatus, this
Thermal current is both from the waste heat after catalysis burning in system.
Concentration organic exhaust gas after desorption enters catalytic burner purified treatment, can automatically adjust waste gas by system dense
Degree, when waste gas (such as toluene) concentration reaches 2000ppm, so that it may maintain spontaneous combustion, power consumption is closed automatically, operating cost is significantly
Reduction.
It, to explanation of the present utility model, is limited of the present utility model that above-described embodiment, which is, any new to this practicality
Scheme after type simple transformation belongs to protection domain of the present utility model.
Claims (3)
1. a kind of VOC on-line monitoring systems and governing system, it is characterised in that：Governing system includes sample gas compressor (1), urged
Change combustion furnace (2), the first triple valve (3), the second triple valve (4), the 3rd triple valve (5), the 4th triple valve (6), the 5th threeway
Valve (7), two the first chromatographic columns (8), two the second chromatographic columns (9), some heaters (10), desorption gas compressor (11) and
Tail gas discharging pipe (13), the input of the sample gas compressor (1) is connected with sample gas air supply pipe, the sample gas compressor
(1) output end is connected with the front port of the second triple valve (4), and the input of the catalytic combustion burner (2) is respectively with the one or three
The upper port of port valve (3) and the connection of the lower port of the 3rd triple valve (5), the lower port and the two or three of first triple valve (3)
The upper port connection of port valve (4), the lower port of second triple valve (4) is connected with the upper port of the 3rd triple valve (5), described
Rear port of the input of two the first chromatographic columns (8) respectively with the first triple valve (3) and the 3rd triple valve (5) is connected, described
Input of the output end of two the first chromatographic columns (8) respectively with two the second chromatographic columns (9) is connected, described two second chromatograms
Front port of the output end of post (9) respectively with the 4th triple valve (6) and the 5th triple valve (7) is connected, the desorption gas compression
The output end of machine (11) is connected with the upper port of the 4th triple valve (6) and the lower port of the 5th triple valve (7) respectively, and the described 4th
The rear port of triple valve (6) and the 5th triple valve (7) is connected with tail gas discharging pipe (13), first chromatographic column (8) and
The bottom part down of two chromatographic columns (9) is all provided with having heaters (10), and VOC on-line monitoring systems include gas chromatograph (12) and data
Work station (14), the drain of the catalytic combustion burner (2) is connected with gas chromatograph (12), described two first chromatographic columns
(8) output end is connected with gas chromatograph (12), and the rear port of the 4th triple valve (6) and the 5th triple valve (7) is equal
It is connected with gas chromatograph (12).
2. a kind of VOC on-line monitoring systems and governing system as claimed in claim 1, it is characterised in that：Also include Environmental Protection Agency
System (15), the environmentally friendly office system (15) is connected with data workstation (14).
3. a kind of VOC on-line monitoring systems and governing system as any one of claim 1 to 2, it is characterised in that：Institute
Stating the first triple valve (3), the second triple valve (4), the 3rd triple valve (5), the 4th triple valve (6) and the 5th triple valve (7) is
Automatic valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720084044.6U CN206566695U (en) | 2017-01-20 | 2017-01-20 | A kind of VOC on-line monitoring systems and governing system |
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| CN201720084044.6U CN206566695U (en) | 2017-01-20 | 2017-01-20 | A kind of VOC on-line monitoring systems and governing system |
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| CN206566695U true CN206566695U (en) | 2017-10-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051102A (en) * | 2017-01-20 | 2017-08-18 | 浙江赛鹭鑫仪器有限公司 | A kind of VOC on-line monitoring systems and governing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051102A (en) * | 2017-01-20 | 2017-08-18 | 浙江赛鹭鑫仪器有限公司 | A kind of VOC on-line monitoring systems and governing system |
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