CN105467087A - VOC online detection device applied to laboratory or special occasions - Google Patents
VOC online detection device applied to laboratory or special occasions Download PDFInfo
- Publication number
- CN105467087A CN105467087A CN201511012778.5A CN201511012778A CN105467087A CN 105467087 A CN105467087 A CN 105467087A CN 201511012778 A CN201511012778 A CN 201511012778A CN 105467087 A CN105467087 A CN 105467087A
- Authority
- CN
- China
- Prior art keywords
- laboratory
- voc
- air chamber
- sensor
- signal
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title abstract description 14
- 239000000523 sample Substances 0.000 claims abstract description 4
- 231100001261 hazardous Toxicity 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 239000012855 volatile organic compound Substances 0.000 description 23
- 239000000956 alloy Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a VOC online detection device applied to a laboratory or special occasions and belongs to gas detection devices. The VOC online detection device comprises a shell, wherein a gas chamber is arranged on the shell and is communicated with the external environment, a sensor is further arranged on the shell, the probe of the sensor stretches to the inside of the gas chamber, the sensor is also connected to a circuit board, and the circuit board is connected to an alarm device. According to the invention, due to arrangement of the independent gas chamber in the detection device, the sensor is used for carrying out sensing signal acquisition in a relatively narrow space in the gas chamber, and further the gas concentration detection accuracy is promoted; furthermore, online detection can be carried out on the gas concentration, and an alarm device can be triggered to alarm when the concentration exceeds an upper limit value, so as to remind indoor personnel or directly carry out ventilation processing; and the VOC online detection device applied to a laboratory or special occasions, provided by the invention, is simple in structure, is especially applicable to use in a laboratory, and can also be installed in other indoor occasions for use, thus being wide in application scope.
Description
Technical field
The present invention relates to a kind of air detecting device, in particular, the present invention relates generally to a kind of VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations.
Background technology
At present, VOC(volatile organic compounds volatileorganiccompounds on the market) pick-up unit is mostly only directed to air environmental pollution and carries out VOC detection, Detection accuracy is on the low side, and sensor life-time is short, buy and maintenance cost higher, functionally cannot meet the VOC testing requirement in this kind of particular surroundings in laboratory, thus be necessary to carry out studying and improving for the structure of this kind of pick-up unit.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, a kind of VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations is provided, detect to expect to solve the VOC that in prior art, similar pick-up unit is applicable in general context pollution, Detection accuracy is low, is unsuitable for carrying out the technical matterss such as VOC detection in the lab.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations provided by the present invention, comprise housing, described housing is provided with air chamber, described air chamber is connected with external environment condition, described housing is also provided with sensor, the probe of described sensor extends to the inside of air chamber, described sensor is place in circuit plate also, described circuit board access warning device, for the gas concentration signal collected being transferred to circuit board by sensor, by circuit board, gas concentration signal is converted to electric signal transmission to warning device.
As preferably, further technical scheme is: described circuit board at least comprises signal receiving module, signal conversion module and signal output module, described signal conversion module accesses signal receiving module and signal output module respectively, described signal output module is by RS485 communication bus access warning device, and described signal receiving module accesses sensor.
Further technical scheme is: air chamber is provided with multiple hole, and the inner chamber of described air chamber is connected with external environment condition by multiple hole.
Further technical scheme is: described air chamber is connected with air pump by pipeline, for being delivered in the inner chamber of air chamber by the air of air pump by outside.
Further technical scheme is: described housing is also provided with display module, the signal output module on described display module place in circuit plate, shows for the electric signal after signal conversion module being changed by display module.
Further technical scheme is: described air chamber is arranged on housing by screw thread, and described warning device is arranged on the top of housing.
Further technical scheme is: the material of described housing and air chamber is aluminium alloy.
Compared with prior art, one of beneficial effect of the present invention is: by arranging independently air chamber in pick-up unit, transducing signal collection is carried out the space relatively little in air chamber by sensor, and then improve the accuracy of gas concentration detection, and gas concentration can carry out on-line checkingi, and trigger alarm device is reported to the police when concentration exceeds higher limit, remind indoor occupant or directly carry out ventilation process, simultaneously a kind of VOC on-line measuring device structure that can be used for laboratory or Code in Hazardous Special Locations provided by the present invention is simple, especially be suitable for using in laboratory, also can install and use in other indoor place, range of application is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation for illustration of one embodiment of the invention;
Fig. 2 is for illustration of the board structure of circuit schematic block diagram in another embodiment of the present invention;
In figure, 1 be housing, 2 be air chamber, 3 be warning device, 4 for display module.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Shown in figure 1, one embodiment of the present of invention are a kind of VOC on-line measuring devices that can be used for laboratory or Code in Hazardous Special Locations, comprise housing 1, and this housing 1 is provided with air chamber 2, and air chamber 2 need be connected with external environment condition, housing 1 is also provided with sensor, and the probe of this sensor extends to the inside of air chamber 2, in addition, sensor is place in circuit plate also, and circuit board access warning device 3, as shown in Figure 1, this warning device 3 is preferably arranged on the top of housing 1; Its effect is, by sensor, the gas concentration signal collected is transferred to circuit board, by the necessary module on circuit board, gas concentration signal is converted to electric signal transmission to warning device 3; The mode that aforesaid air chamber 2 is inhaled by gas natural diffuseness or pump collects room air, and gathers the VOC concentration in air by sensor.In using, inventor consider air chamber 2 for a long time with there is VOC gas contact and easily receive corrosion, the high-strength aluminum profile that therefore have employed military project quality is at the trial processed into, and abrasion-proof corrosion-proof is turbid, be applicable to complicated severe industrial environment, ensure the accuracy of sensor Real-Time Monitoring; In addition, above-mentioned housing 1 also can adopt housing to adopt ADC12 aluminum alloy material to be processed into, wear resistant corrosion resistant.
Further, in order to easy for installation, air chamber 2 and housing 1 can adopt detachable connection, comparatively preferably on the air chamber 2 and housing 1 of aluminum alloy material, arrange the external thread and internal thread that cooperatively interact, and then are arranged on housing 1 by screw thread by air chamber 2.
In the present embodiment, by arranging independently air chamber 2 in pick-up unit, transducing signal collection is carried out the space relatively little in air chamber 2 by sensor, and then improve the accuracy of gas concentration detection, and gas concentration can carry out on-line checkingi, and trigger alarm device is reported to the police when concentration exceeds higher limit, remind indoor occupant or directly carry out ventilation process.
Shown in composition graphs 2, be used in the more preferred embodiment of technical solution problem in the present invention, for adapting to Logic judgment and the alarm principle of conventional warning device, the best signalization receiver module of foregoing circuit plate, signal conversion module and signal output module, and signal conversion module is accessed signal receiving module and signal output module respectively, signal output module is by RS485 communication bus access warning device 3, and signal receiving module accesses sensor; And then by signal conversion module, the simulating signal that sensor exports is converted to digital data transmission in warning device 3, the threshold value of VOC gas concentration has then been preset in warning device 3, namely when after digital data transmission to warning device 3, control module in warning device by the VOC gas concentration value in current digital signal compared with predetermined threshold value, when occurring that currency is greater than predetermined threshold value, namely trigger alarm device is reported to the police, and the mode of warning can select sound and light alarm; When necessary, also can by the air exhausting device of peripheral hardware access warning device, namely when aforesaid currency is greater than predetermined threshold value, namely air exhausting device is triggered by warning device, namely air exhausting device takes a breath to indoor after starting, to reduce indoor VOC gas concentration, and promote indoor VOC and detect and the automaticity removed.
Further, for making indoor occupant can in real time by the VOC gas concentration in pick-up unit observation ward, also on housing 1, display module 4 can be installed, and by the signal output module on display module 4 place in circuit plate, show for the electric signal after signal conversion module being changed by display module 4; This display module 4 is fixed on on the riveting post in housing 1 by screw with circuit board.
Preferably, above-mentioned sensor preferably adopts imported with original packaging high-performance PID principle sensor, and serviceable life reaches more than 2-3; The automatic protection functions that anti-high concentrations of gas impacts, has good interference free performance, and is exported the simulating signal gathered by three-wire system 4 ~ 20mA; Housing 1 is provided with two long cable section of ingoing line mouths, facilitates device to install at the scene.
On the other hand, as mentioned here above, the mode that above-mentioned air chamber 2 is inhaled by gas natural diffuseness or pump collects room air, during as adopted the mode of natural diffuseness, multiple hole can be provided with on air chamber 2, the inner chamber of air chamber 2 is connected with external environment condition by multiple hole.The mode of inhaling as adopted pump, air chamber 2 is then needed to be connected with air pump by pipeline, for the air of outside being delivered in the inner chamber of air chamber 2 by air pump, aforesaid air pump can adopt the mode of automatic switch, namely start within the unit interval and the air of indoor is delivered in air chamber 2, then stop, after the unit interval, again start conveying room air to air chamber 2, so circulate.
The above-mentioned preferred embodiment of the present invention in actual use, be installed on by pick-up unit in laboratory, collected by the mode of natural diffuseness by the air in air chamber 1, by sensor in real time or unit interval the VOC concentration in air in air chamber 2 is gathered, and the signal receiving module transferred on circuit board, signal receiving module by Signal transmissions to signal conversion module, simulating signal is converted to digital signal by signal conversion module, RS485 bus transfer is passed through to warning device and display module by signal output module, display module backlight display current sensor collects the VOC concentration value in air chamber 2 in air, warning device then carries out Logic judgment according to the concentration value in digital signal, after the result meeting Logic judgment meets trigger condition, alarm activation carries out sound and light alarm, the personnel in laboratory are reminded to carry out Air exhaust, in another kind of situation, when testing indoor location automatic exhausting equipment, exhaust equipment can be triggered automatic, automatic exhausting is carried out to indoor, until when the VOC concentration value that sensor collects in air chamber 2 is reduced to below predetermined threshold value warning device or other standard value, exhaust equipment is out of service.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (7)
1. one kind can be used for the VOC on-line measuring device of laboratory or Code in Hazardous Special Locations, comprise housing (1), it is characterized in that: described housing (1) is provided with air chamber (2), described air chamber (2) is connected with external environment condition, (1) is also provided with sensor to described housing, the probe of described sensor extends to the inside of air chamber (2), described sensor is place in circuit plate also, described circuit board access warning device (3), for the gas concentration signal collected being transferred to circuit board by sensor, by circuit board, gas concentration signal is converted to electric signal transmission to warning device (3).
2. the VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations according to claim 1, it is characterized in that: described circuit board at least comprises signal receiving module, signal conversion module and signal output module, described signal conversion module accesses signal receiving module and signal output module respectively, described signal output module is by RS485 communication bus access warning device (3), and described signal receiving module accesses sensor.
3. the VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations according to claim 1 and 2, it is characterized in that: air chamber (2) is provided with multiple hole, the inner chamber of described air chamber (2) is connected with external environment condition by multiple hole.
4. the VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations according to claim 1 and 2, is characterized in that: described air chamber (2) is connected with air pump by pipeline, for being delivered in the inner chamber of air chamber (2) by the air of outside by air pump.
5. the VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations according to claim 1, it is characterized in that: described housing (1) is also provided with display module (4), signal output module on described display module (4) place in circuit plate, shows for the electric signal after signal conversion module being changed by display module (4).
6. the VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations according to claim 1, it is characterized in that: described air chamber (2) is arranged on housing (1) by screw thread, and described warning device (3) is arranged on the top of housing (1).
7. the VOC on-line measuring device that can be used for laboratory or Code in Hazardous Special Locations according to claim 1 or 6, is characterized in that: described housing (1) is aluminium alloy with the material of air chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012778.5A CN105467087A (en) | 2015-12-31 | 2015-12-31 | VOC online detection device applied to laboratory or special occasions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012778.5A CN105467087A (en) | 2015-12-31 | 2015-12-31 | VOC online detection device applied to laboratory or special occasions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105467087A true CN105467087A (en) | 2016-04-06 |
Family
ID=55605013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511012778.5A Pending CN105467087A (en) | 2015-12-31 | 2015-12-31 | VOC online detection device applied to laboratory or special occasions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105467087A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959758A (en) * | 2017-12-25 | 2019-07-02 | 研能科技股份有限公司 | The detection alarming method for power of volatile organic compounds |
| CN109959759A (en) * | 2017-12-25 | 2019-07-02 | 研能科技股份有限公司 | The detection alarming method for power of volatile organic compounds |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079243A1 (en) * | 1999-06-17 | 2000-12-28 | Cyrano Sciences, Inc. | Multiple sensing system and device |
| US7229593B1 (en) * | 2001-10-25 | 2007-06-12 | Sandia Corporation | Portable vapor diffusion coefficient meter |
| CN101025424A (en) * | 2007-04-09 | 2007-08-29 | 周玉成 | Climate room for high precision dynamic detection for large-sized VOC detection and its detecting apparatus |
| CN103728348A (en) * | 2013-12-02 | 2014-04-16 | 江苏大学 | Electronic nose for detecting indoor air quality |
| CN104560710A (en) * | 2014-12-28 | 2015-04-29 | 刘湘娟 | Life environment management system |
| CN205374405U (en) * | 2015-12-31 | 2016-07-06 | 南京诺丹工程技术有限公司 | VOC on -line measuring device that can be used to laboratory or special place |
-
2015
- 2015-12-31 CN CN201511012778.5A patent/CN105467087A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079243A1 (en) * | 1999-06-17 | 2000-12-28 | Cyrano Sciences, Inc. | Multiple sensing system and device |
| US7229593B1 (en) * | 2001-10-25 | 2007-06-12 | Sandia Corporation | Portable vapor diffusion coefficient meter |
| CN101025424A (en) * | 2007-04-09 | 2007-08-29 | 周玉成 | Climate room for high precision dynamic detection for large-sized VOC detection and its detecting apparatus |
| CN103728348A (en) * | 2013-12-02 | 2014-04-16 | 江苏大学 | Electronic nose for detecting indoor air quality |
| CN104560710A (en) * | 2014-12-28 | 2015-04-29 | 刘湘娟 | Life environment management system |
| CN205374405U (en) * | 2015-12-31 | 2016-07-06 | 南京诺丹工程技术有限公司 | VOC on -line measuring device that can be used to laboratory or special place |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959758A (en) * | 2017-12-25 | 2019-07-02 | 研能科技股份有限公司 | The detection alarming method for power of volatile organic compounds |
| CN109959759A (en) * | 2017-12-25 | 2019-07-02 | 研能科技股份有限公司 | The detection alarming method for power of volatile organic compounds |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103454252B (en) | Double light path scattering water quality turbidity measurer | |
| CN204374039U (en) | A kind of indoor air chemical pollution equipment | |
| CN104330113A (en) | Environmental multi-parameter online acquiring monitoring device | |
| CN105181618A (en) | Outdoor VOC gas monitoring system | |
| CN201096714Y (en) | SF6 gas online detection alarming system | |
| CN205374405U (en) | VOC on -line measuring device that can be used to laboratory or special place | |
| CN105467087A (en) | VOC online detection device applied to laboratory or special occasions | |
| CN203881713U (en) | Online ultrasonic wave monitoring system for SF6 gas in transformer substation | |
| CN2909260Y (en) | Networking investigating device for indoor air quality | |
| CN204228579U (en) | Height based on fine particle integrated multiport Indoor Environment Detection equipment | |
| CN204390401U (en) | A kind of smog autoalarm | |
| CN205139002U (en) | Gaseous monitoring system of outdoor VOC | |
| CN117193224A (en) | Sewage treatment intelligent monitoring system based on Internet of things | |
| CN201970909U (en) | Gas alarm detection car | |
| CN205216035U (en) | Automatic fire control control system based on thing networking | |
| CN207908905U (en) | A kind of intelligent data acqusition system | |
| CN203721033U (en) | Digital photography-based agglomerate fog real-time early warning system | |
| CN206863537U (en) | A kind of sewage disposal remote monitoring system | |
| CN202870062U (en) | Indoor air quality detector | |
| CN105923796A (en) | Network based scale realtime monitoring device | |
| CN202838615U (en) | Gas alarm | |
| CN212112218U (en) | Wisdom sewage plant station remote supervision and operation evaluation system based on thing networking | |
| CN204740246U (en) | Room air comprehensive testing system | |
| CN203176735U (en) | Flow detector with wireless monitoring system | |
| CN210865044U (en) | Transformer substation box body monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |