CN208313928U - Volatile organic matter online monitoring system - Google Patents
Volatile organic matter online monitoring system Download PDFInfo
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- CN208313928U CN208313928U CN201820589099.7U CN201820589099U CN208313928U CN 208313928 U CN208313928 U CN 208313928U CN 201820589099 U CN201820589099 U CN 201820589099U CN 208313928 U CN208313928 U CN 208313928U
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Abstract
The utility model belongs to the pollutants such as the VOC gas of detectable discharge of pollutant sources, it applies in petrochemical industry, electronics, printing, rubber product, industrial coating, the key industrys stationary source VOCs such as organic solvent manufacture and medicine discharges detection field, more particularly to a kind of volatile organic matter online monitoring system for being applicable to discharge of pollutant sources real-time monitoring, the utility model is by diaphragm pump to gas sampling to be measured, sample filter is passed into after conveying after heat tracing pipe, the impurity particles object such as filtering dust, in the dehumidification by condensation device by being connect with sample filter, vapor in gaseous sample is condensed into removal, realize the double-filtration of gaseous sample, overcome moisture in pollution derived components to be measured, problem more than dust, realize accurately measurement.
Description
Technical field
The utility model belongs to the pollutants such as the VOC gas of detectable discharge of pollutant sources, apply petrochemical industry, electronics,
The key industrys stationary source VOCs discharge detection neck such as printing, rubber product, industrial coating, organic solvent manufacture and medicine
Domain, and in particular to be applicable to a kind of volatile organic matter online monitoring system of discharge of pollutant sources real-time monitoring.
Background technique
Photoionization detector (Photoionization Detector, PID) is a kind of non-destructive detector, principle
It is to use the vecuum ultraviolet non-pole discharge lamp with 10.6eV energy as light source, most of organic matters in air can be made
It is ionized with part inorganic matter, but still keeps the basic cost such as N in air2、O2、H2O、CO2It is not ionized, measured matter is electric
From rear, according to the size that ion ionizes, the content of substance is obtained, and substance classes are determined according to chromatographic column retention time.Its is right
Aromatic hydrocarbons and alkene have selectivity, can be combined with implementations such as mass spectrum, infrared detectors, with multi informations such as acquisitions.The detector is excellent
Point is that detection limit is low, and high sensitivity, detectable concentration reaches 10-9Rank, the range of linearity is wide, can be operated under normal pressure, no
It needs to simplify equipment using hydrogen, air etc..
Volatile organic matter online monitoring system, product are examined online towards total volatile organism in pollution sources (TVOC)
The low cost and non-maintaining demand of examining system can measure based on photoionization detection (PID) principle design and removed methane, ethane
With several hundred kinds of volatile organic matters except propane.But traditional PID method is easy the pollution by particulate matter and steam, and it is dirty
Dye source exactly has the characteristics that moisture in ingredient, dust are more, and just because of this, the monitor manufactured using traditional PID method is because of dirt
Contaminate the presence of object, it is difficult to realize accurately measurement.
Utility model content
For the utility model in order to solve above-mentioned problems of the prior art, the utility model provides a kind of volatility
Organic matter online monitoring system can be sampled heat tracing, deep condensation water removal and multistage filtering technology by high temperature, guarantee measurement
Accuracy, overcome traditional PID method be easy by particulate matter and water pollution the shortcomings that.
The specific technical solution that the utility model uses is:
Volatile organic matter online monitoring system, including cabinet body, controller and the monitoring gas connected by controller control
Road, the monitoring gas circuit include sampling pretreatment unit, calibration unit, electromagnetic valve unit and detection unit, the detection
Unit is connected to by electromagnetic valve unit with sampling pretreatment unit, calibration unit, and the detection unit includes sensor measurement
Room is provided with measurement sensor in the sensor measurement room, and the sensor measurement room is connected with exhaust pump, described
Sampling pretreatment unit includes sequentially connected heat tracing pipe, sample filter, dehumidification by condensation device, sample flow meter, the sample
The output end of product flowmeter is connected to by electromagnetic valve unit with sensor measurement room.
The electromagnetic valve unit includes the first solenoid valve being sequentially connected in series and second solenoid valve, the sample flow meter
Output end be connected to by the first solenoid valve, second solenoid valve with sensor measurement room, the calibration unit include standard gas supply
To unit and zero gas feed unit.
The standard gas feed unit includes the standard gas tank and standard gas flowmeter for accommodating calibrating gas, the standard gas tank
It is connect by standard gas flowmeter with the first solenoid valve.
The zero gas feed unit includes sequentially connected zero air filter, zero pneumoelectric magnet valve, activated carbon tube, described
The output end of activated carbon tube is connect with second solenoid valve.
The dehumidification by condensation device is also connected with drain peristaltic pump.
The monitoring system further includes environmentally sensitive unit, and the environmentally sensitive unit overhangs by bracket in cabinet body
Outside, the environmentally sensitive unit include temperature and relative humidity, barometric pressure sensor.
The controller is respectively with electromagnetic valve unit, heat tracing pipe, dehumidification by condensation device and setting in sensor measurement room
Measurement sensor connection, the measurement sensor connect by connectivity port with controller, and the connectivity port is arranged
There are multiple groups.
The controller is also connected with communication module, and the communication module includes that 4G the whole network based on wireless signal is logical
Module and wire communication module based on RS232, RS485.
The controller is also connected with touch screen.
The controller is also connected with combined aural and visual alarm.
The beneficial effects of the utility model are:
The utility model, to gas sampling to be measured, is passed into sample filtering after conveying after heat tracing pipe by diaphragm pump
Device, the impurity particles object such as filtering dust steam the water in gaseous sample in the dehumidification by condensation device by connecting with sample filter
The solidifying removal of air cooling, realizes the double-filtration of gaseous sample, overcomes the problems, such as that moisture, dust are more in pollution derived components to be measured, realize
Accurately measurement.
Detailed description of the invention
Fig. 1 is the air circuit connection schematic diagram of the utility model；
Fig. 2 is the positive structure schematic of the utility model；
Fig. 3 is the structure schematic diagram of the utility model；
In attached drawing, 1, controller, 2, sensor measurement room, 3, exhaust pump, 4, heat tracing pipe, 5, dehumidification by condensation device, 6, sample
Flowmeter, the 7, first solenoid valve, 8, second solenoid valve, 9, standard gas tank, 10, standard gas flowmeter, 11, zero pneumoelectric magnet valve, 12, zero gas
Filter, 13, activated carbon tube, 14, drain peristaltic pump, 15, environmentally sensitive unit, 16, touch screen, 17, combined aural and visual alarm, 18,
Sample filter.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the utility model is described in further detail:
Specific embodiment 1, as shown in Figure 1, the utility model is a kind of volatile organic matter online monitoring system, including cabinet
Body, controller 1 and the monitoring gas circuit by the control connection of controller 1, the monitoring gas circuit include sampling pretreatment unit, school
Quasi- unit, electromagnetic valve unit and detection unit, the detection unit is by electromagnetic valve unit and sampling pretreatment unit, calibration
Unit connection, the detection unit includes sensor measurement room 2, and measurement sensing is provided in the sensor measurement room 2
Device, the sensor measurement room 2 are connected with exhaust pump 3, and the sampling pretreatment unit includes sequentially connected heat tracing pipe
4, sample filter 18, dehumidification by condensation device 5, sample flow meter 6, the output end of the sample flow meter 6 is by solenoid valve list
Member is connected to sensor measurement room 2.The utility model draws the under test gas sample in flue by diaphragm pump when in use, every
Gaseous sample is transported to sample filter 18 by heat tracing pipe 4 and carries out dust-filtering by membrane pump, and gaseous sample is due to heat tracing pipe 4
Heating avoids condensation vapor and is also prevented from VOC gas absorption, ensure that the unobstructed of transfer pipeline, avoid sample filter 18
Excessive loss, then, the gaseous sample after dust-filtering is transported in dehumidification by condensation device 5, by dehumidification by condensation device 5
Water vapor condensation in gaseous sample is guaranteed that the moisture content of gaseous sample is lower, such as to realize gas-liquid separation for liquid
This, the gaseous sample after double-filtration eliminates dust and steam, and it is accurate when being detected using traditional PI D method to ensure that
Property, start exhaust pump 3 after detection and gaseous sample is discharged.
Specific embodiment 2, in order to realize multiple calibration, the electromagnetic valve unit includes the first solenoid valve being sequentially connected in series
7 and second solenoid valve 8, the output end of the sample flow meter 6 is surveyed by the first solenoid valve 7, second solenoid valve 8 and sensor
It measures room 2 to be connected to, the calibration unit includes standard gas feed unit and zero gas feed unit.The standard gas feed unit includes
The standard gas tank 9 and standard gas flowmeter 10 of calibrating gas are accommodated, the standard gas tank 9 is by standard gas flowmeter 10 and the first electricity
Magnet valve 7 connects.The zero gas feed unit includes sequentially connected zero air filter 12, zero pneumoelectric magnet valve 11, activated carbon tube
13, the output end of the activated carbon tube 13 is connect with second solenoid valve 8.
When needing to calibrate equipment, application scenarios and the user of standard gas are provided for having ready conditions, by by standard gas
Tank 9 is installed on the first solenoid valve 7, and the first solenoid valve 7 gone out by two into one adjusts sample input or standard gas and inputs, when cutting
When changing to standard gas input, the gas circuit and cavity of second solenoid valve 8 and sensor measurement room 2 are rinsed, remaining gas is removed
Body sample, and calibrating gas is provided for the measurement sensor in sensor measurement room 2, controller 1 passes through measurement sensor at this time
Detection data and standard gas corresponding to data calibrated, realize automatic calibration.
Further, when instrument needs school zero, the first solenoid valve 7 is closed, and zero pneumoelectric magnet valve 11 is opened, and passes through diaphragm pump
The air sucked from environment is pumped into equipment, after air passes through zero air filter 12,13 impurity screening of activated carbon tube and moisture
Zero gas is generated, zero gas is input in sensor measurement room 2 by the second solenoid valve 8 gone out by two into one, is mentioned for measurement sensor
For zero gas, the automatic zero adjustment of instrument is realized.
Further, the dehumidification by condensation device 5 is also connected with drain peristaltic pump 14.It will be condensed by drain peristaltic pump 14
The condensate liquid discharge that dehumidifier 5 generates, guarantees the normal work of dehumidification by condensation device 5.
Specific embodiment 3 is as shown in Figures 2 and 3 the component mounting structure schematic diagram of the utility model, wherein being vented
Pump 3, heat tracing pipe 4, dehumidification by condensation device 5, sample flow meter 6, the first solenoid valve 7, second solenoid valve 8 are mounted on inside equipment, institute
The monitoring system stated further includes environmentally sensitive unit 15, and the environmentally sensitive unit 15 overhangs on the outside of cabinet body by bracket,
The environmentally sensitive unit 15 includes temperature-humidity sensor, pressure sensor.This detector additionally provides environmentally sensitive
Unit 15 provides the environmental parameter of equipment, is aggregated into director server in time when environmental parameter variation, monitoring personnel passes through to ring
Border parameter and the gaseous sample parameter of equipment detection carry out big data and summarize, and provide basic ginseng for the construction of big data Internet of Things
Number.
Further, the controller 1 is being passed with electromagnetic valve unit, heat tracing pipe 4, dehumidification by condensation device 5 and setting respectively
Measurement sensor connection in sensor measuring chamber 2, the measurement sensor is connect by connectivity port with controller 1, described
Connectivity port be provided with multiple groups.The connectivity port connects multiple sensors, such as infrared sensor by way of grafting
Deng, it can be achieved that many kinds of parameters such as poisonous and harmful and regular air extension demand, meet the complicated monitoring requirements of heavy polluted industry,
It is provided with temperature, humidity, pressure sensor in the sensor measurement room 2, to be collected simultaneously in detection gas sample
The temperature and humidity and pressure information of sample provide basic data for the measurement analysis in later period.
Further, the controller 1 is also connected with communication module, and the communication module includes being based on wireless signal
4G the whole network lead to module and the wire communication module based on RS232, RS485.The communication module good compatibility, user can be with
Communication module is configured according to the requirement of itself, test data is reached into server, the data of user is facilitated to acquire.
Further, the controller 1 is also connected with touch screen 16, passes through the touch screen 16, Yong Huke of instrument configuration
To be checked at the scene to instrument state, warning message, data information etc., while instrument can be configured, Yi Jicha
See external governance facility switching amount information.
Further, the controller 1 is also connected with combined aural and visual alarm 17.Alarm by being preset in controller 1 is joined
Number, when equipment detects failure or detects the emergency cases generation such as exceeded, controller 1 triggers combined aural and visual alarm 17 to notify
User is handled in time, and emergency case harm is avoided to expand.
Claims (10)
1. volatile organic matter online monitoring system, including cabinet body, controller (1) and the prison connected by controller (1) control
Gas circuit is surveyed, the monitoring gas circuit includes sampling pretreatment unit, calibration unit, electromagnetic valve unit and detection unit, described
Detection unit is connected to by electromagnetic valve unit with sampling pretreatment unit, calibration unit, and the detection unit includes sensor
Measuring chamber (2), the sensor measurement room (2) is interior to be provided with measurement sensor, and the sensor measurement room (2) is connected with
Exhaust pump (3), it is characterised in that: the sampling pretreatment unit includes sequentially connected heat tracing pipe (4), sample filter
(18), dehumidification by condensation device (5), sample flow meter (6), the output end of the sample flow meter (6) by electromagnetic valve unit with
Sensor measurement room (2) connection.
2. volatile organic matter online monitoring system according to claim 1, it is characterised in that: the electromagnetic valve unit
Including the first solenoid valve (7) being sequentially connected in series and second solenoid valve (8), the output end of the sample flow meter (6) is by
One solenoid valve (7), second solenoid valve (8) are connected to sensor measurement room (2), and the calibration unit includes standard gas feed unit
And zero gas feed unit.
3. volatile organic matter online monitoring system according to claim 2, it is characterised in that: the standard gas supplies single
Member includes the standard gas tank (9) and standard gas flowmeter (10) for accommodating calibrating gas, and the standard gas tank (9) is by standard gas flowmeter
(10) it is connect with the first solenoid valve (7).
4. volatile organic matter online monitoring system according to claim 2, it is characterised in that: zero gas supplies single
Member includes sequentially connected zero air filter (12), zero pneumoelectric magnet valve (11), activated carbon tube (13), the activated carbon tube (13)
Output end connect with second solenoid valve (8).
5. volatile organic matter online monitoring system according to claim 1, it is characterised in that: the dehumidification by condensation device
(5) drain peristaltic pump (14) are also connected with.
6. volatile organic matter online monitoring system according to claim 1, it is characterised in that: the monitoring system is also
Including environmentally sensitive unit (15), the environmentally sensitive unit (15) overhangs on the outside of cabinet body by bracket, the environment
Sensing unit (15) includes temperature and relative humidity, barometric pressure sensor.
7. volatile organic matter online monitoring system according to claim 1, it is characterised in that: the controller (1)
Measurement sensor with electromagnetic valve unit, heat tracing pipe (4), dehumidification by condensation device (5) and setting in sensor measurement room (2) respectively
Connection, the measurement sensor are connect by connectivity port with controller (1), and the connectivity port is provided with multiple groups.
8. volatile organic matter online monitoring system according to claim 1, it is characterised in that: the controller (1)
Be also connected with communication module, the communication module include 4G the whole network based on wireless signal lead to module and based on RS232,
The wire communication module of RS485.
9. volatile organic matter online monitoring system according to claim 1, it is characterised in that: the controller (1)
It is also connected with touch screen (16).
10. volatile organic matter online monitoring system according to claim 1, it is characterised in that: the controller (1)
It is also connected with combined aural and visual alarm (17).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820589099.7U CN208313928U (en) | 2018-04-24 | 2018-04-24 | Volatile organic matter online monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820589099.7U CN208313928U (en) | 2018-04-24 | 2018-04-24 | Volatile organic matter online monitoring system |
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| CN208313928U true CN208313928U (en) | 2019-01-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813360A (en) * | 2019-01-31 | 2019-05-28 | 中国人民解放军92493部队计量测试研究所 | An online calibration device for temperature and humidity of environmental parameters |
| CN109856328A (en) * | 2019-01-21 | 2019-06-07 | 山东省科学院海洋仪器仪表研究所 | A kind of building materials volatile matter spot sampling device and sampling process control method |
| CN110133181A (en) * | 2019-03-29 | 2019-08-16 | 上海复纯环保科技有限公司 | A kind of foul gas on-Line Monitor Device |
| CN110632166A (en) * | 2019-09-27 | 2019-12-31 | 山西鑫华翔科技发展有限公司 | PID (proportion integration differentiation) monitoring and standard-exceeding sample reserving device for fixed pollution source VOCs and using method |
| CN110824116A (en) * | 2019-11-28 | 2020-02-21 | 河北雄安绿研检验认证有限公司 | Rapid detection device for VOCs release rate of material and application |
| CN111323540A (en) * | 2020-03-19 | 2020-06-23 | 河北科技大学 | An early warning and sample retention system for unorganized excessive discharge of volatile organic pollutants |
| CN111999376A (en) * | 2020-09-16 | 2020-11-27 | 山东光测环境科技有限公司 | PID-Tvoc on-line monitoring system |
| CN112881610A (en) * | 2021-01-20 | 2021-06-01 | 北京大学深圳研究生院 | Volatile organic compound detection and quality control device and method |
-
2018
- 2018-04-24 CN CN201820589099.7U patent/CN208313928U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856328A (en) * | 2019-01-21 | 2019-06-07 | 山东省科学院海洋仪器仪表研究所 | A kind of building materials volatile matter spot sampling device and sampling process control method |
| CN109856328B (en) * | 2019-01-21 | 2024-03-12 | 山东省科学院海洋仪器仪表研究所 | Building material volatile matter on-site sampling device and sampling process control method |
| CN109813360A (en) * | 2019-01-31 | 2019-05-28 | 中国人民解放军92493部队计量测试研究所 | An online calibration device for temperature and humidity of environmental parameters |
| CN110133181A (en) * | 2019-03-29 | 2019-08-16 | 上海复纯环保科技有限公司 | A kind of foul gas on-Line Monitor Device |
| CN110632166A (en) * | 2019-09-27 | 2019-12-31 | 山西鑫华翔科技发展有限公司 | PID (proportion integration differentiation) monitoring and standard-exceeding sample reserving device for fixed pollution source VOCs and using method |
| CN110824116A (en) * | 2019-11-28 | 2020-02-21 | 河北雄安绿研检验认证有限公司 | Rapid detection device for VOCs release rate of material and application |
| CN111323540A (en) * | 2020-03-19 | 2020-06-23 | 河北科技大学 | An early warning and sample retention system for unorganized excessive discharge of volatile organic pollutants |
| CN111999376A (en) * | 2020-09-16 | 2020-11-27 | 山东光测环境科技有限公司 | PID-Tvoc on-line monitoring system |
| CN112881610A (en) * | 2021-01-20 | 2021-06-01 | 北京大学深圳研究生院 | Volatile organic compound detection and quality control device and method |
| CN112881610B (en) * | 2021-01-20 | 2023-10-17 | 北京大学深圳研究生院 | Volatile organic compound detection quality control device and method |
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