CN204479528U - NMHC and benzene class material detect special purpose device - Google Patents
NMHC and benzene class material detect special purpose device Download PDFInfo
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- CN204479528U CN204479528U CN201520199074.2U CN201520199074U CN204479528U CN 204479528 U CN204479528 U CN 204479528U CN 201520199074 U CN201520199074 U CN 201520199074U CN 204479528 U CN204479528 U CN 204479528U
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Abstract
The utility model proposes a kind of NMHC and benzene class material detection special purpose device, comprise the first detecting device, the second detecting device, the first polarity chromatographic column, the second polarity chromatographic column, total hydrocarbon chromatographic column specially, molecular sieve chromatography post, the first valve, the second valve, the first carrier gas source of the gas, the second carrier gas source of the gas, the 3rd carrier gas source of the gas, the 4th carrier gas source of the gas, the first quantitative loop, the second quantitative loop, the 3rd quantitative loop, sample gas inlet, the outlet of sample gas and exhausr port, wherein, the first carrier gas source of the gas is finally communicated with exhausr port; Second carrier gas source of the gas is finally communicated with the first detecting device; 3rd carrier gas source of the gas is finally communicated with the first detecting device; 4th carrier gas source of the gas is finally communicated with the second detecting device; Sample gas inlet successively through the second valve, the first quantitative loop, the second valve, the second quantitative loop, the second valve, the first valve, the 3rd quantitative loop, the first valve, final and sample gas outlet.
Description
Technical field
The utility model relates to NMHC and benzene homologues form and aspect chromatographic detection apparatus field, and more specifically, the utility model relates to NMHC and benzene,toluene,xylene detects special purpose device.
Background technology
NMHC typically refers to all volatilizable hydrocarbon except methane (wherein mainly C2 ~ C8).NMHC in air exceedes finite concentration, to outside human health, can also produce chemical fumes, work the mischief to environment and the mankind.Factory's circle concentration standard of the NMHC of China " discharge standard of air pollutants " (GB16927-1996) is 5mg/m3.
And benzene,toluene,xylene is as representative substances in benzene homologues, it is also the important indicator parameter of industrial air pollution thing emission monitoring.
In current industrial detection technology, want to detect this two classes objectionable impurities in gas, need monitor NMHC and benzene homologues respectively by adopting two kinds of instruments, just can obtain the composition of these the two kinds of objectionable impuritiess in tested gas, so not only bring high testing cost, bring unnecessary Operating Complexity simultaneously.
In view of the foregoing, those skilled in the art need utility model one badly can detect NMHC and benzene homologues device, to solve the problems of the prior art simultaneously.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of NMHC and benzene class material detects special purpose device, to solve above-mentioned the problems of the prior art mentioned.
For reaching above-mentioned purpose, as long as technology solution of the present utility model is to provide a kind of NMHC and benzene class material detects special purpose device, described NMHC and benzene class material detect special purpose device and comprise the first detecting device, second detecting device, first polarity chromatographic column, second polarity chromatographic column, total hydrocarbon chromatographic column specially, molecular sieve chromatography post, first valve, second valve, first carrier gas source of the gas, second carrier gas source of the gas, 3rd carrier gas source of the gas, 4th carrier gas source of the gas, first quantitative loop, second quantitative loop, 3rd quantitative loop, sample gas inlet, the outlet of sample gas and exhausr port, wherein, described first carrier gas source of the gas is successively through the first valve, second polarity chromatographic column, first valve, finally be communicated with described exhausr port, the second described carrier gas source of the gas, successively through the first valve, molecular sieve chromatography post, is finally communicated with described first detecting device, described 3rd carrier gas source of the gas, successively through the second valve, total hydrocarbon chromatographic column specially, is finally communicated with described first detecting device, described 4th carrier gas source of the gas, successively through the second valve, the first polarity chromatographic column, is finally communicated with described second detecting device, described sample gas inlet is successively through described second valve, the first quantitative loop, the second valve, the second quantitative loop, the second valve, the first valve, the 3rd quantitative loop, the first valve, final with described sample gas outlet.
Preferably, described first valve is ten-way valve, comprise ten connectors, wherein, the two ends of described 3rd quantitative loop connect the first connector and the 8th connector of described first valve respectively, described first carrier gas source of the gas communicates with the second connector of described first valve, the two ends of described second polarity chromatographic column connect the 3rd connector and the 7th connector of described first valve respectively, the two ends of described molecular sieve chromatography post connect the 4th connector and first detecting device of described first valve respectively, described second carrier gas source of the gas communicates with the 5th connector of described first valve, described sample gas outlet is the 9th connector of described first valve, 6th connector of described first valve is exhausr port, tenth connector of described first valve is the first connected entrance.
Preferably, described second valve is ten-way valve, comprise ten connectors, wherein, the two ends of described second quantitative loop connect the 4th connector and first connector of described second valve respectively, the two ends of described first polarity chromatographic column connect the second connector and second detecting device of described second valve, the two ends of described first quantitative loop connect the 8th connector and the 5th connector of described second valve respectively, the two ends of described total hydrocarbon chromatographic column specially connect the 6th connector and first detecting device of described second valve respectively, described 3rd carrier gas source of the gas is communicated with the 7th connector of described second valve, 9th connector of described sample gas inlet and described second valve, tenth connector of described second valve is the second connected entrance.
Further, described first carrier gas source of the gas is successively by the 7th connector and the connection of described exhausr port of the 3rd connector of the second connector of described first valve, described first valve, described second polarity chromatographic column, described first valve; Described second carrier gas source of the gas is communicated with by the 4th connector of the 5th connector of described first valve, described first valve, described molecular sieve chromatography post and described first detecting device successively; Described 3rd carrier gas source of the gas is communicated with described first detecting device by the 7th connector of described second valve, the 6th connector of the second valve, described total hydrocarbon chromatographic column specially successively; Described 4th carrier gas source of the gas is communicated with described second detecting device by the second connector of the 3rd connector of described second valve, described second valve, described first polarity chromatogram successively; Described sample gas inlet is communicated with evacuation port by the 8th connector of the first connector of the first connector of the 4th connector of the 5th connector of the 8th connector of the 9th connector of described second valve, described second valve, described first quantitative loop, described second valve, described second valve, described second quantitative loop, described second valve, described second connected entrance, described first connected entrance, described first valve, described 3rd quantitative loop, described first valve successively, until the outlet of described sample gas; Described molecular sieve chromatography post is communicated with described first detecting device by zero dead volume threeway with described total hydrocarbon chromatographic column specially; Described first polarity chromatographic column is communicated with described second detecting device.
As selection, described second polarity chromatographic column is middle polarity chromatographic column.
Particularly, described molecular sieve chromatography post is 5A molecular sieve chromatography post.
Particularly, described total hydrocarbon chromatographic column specially is the empty chromatographic column of deactivation process.
Preferably, the packing material of described first polarity chromatographic column is PEG20M.
As selection, described first detecting device and described second detecting device are FID hydrogen flame particle detector.
Particularly, described benzene class material is benzene, toluene and dimethylbenzene.
Therefore, adopt NMHC described in the utility model and benzene class material to detect special purpose device and can reach some beneficial effect following:
1, NMHC described in the utility model and benzene class material detect in special purpose device and adopt two detecting devices simultaneously, NMHC analyzed by a detecting device, and benzene class material analyzed by another detecting device, and the two analysis is carried out simultaneously, do not affect mutually, analytical work is uninterrupted;
2, NMHC described in the utility model and benzene class material detect in special purpose device and provide four tunnel carrier gas sources of the gas, and described four tunnel carrier gas sources of the gas are completely independent, do not interfere with each other, NMHC and the complete independent detection of benzene class material;
3, NMHC described in the utility model and benzene class material detect the detection that special purpose device can carry out NMHC and benzene class material continuously, ensure that the stability of gas chromatography work, achieve high-level efficiency and analyze NMHC and benzene class material.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The inside that Fig. 1 detects special purpose device first embodiment for the NMHC described in utility model and benzene class material is communicated with schematic diagram;
Fig. 2 is the first embodiment planar structure schematic diagram that NMHC described in the utility model and benzene class material detect special purpose device;
Fig. 3 is the testing result figure that NMHC described in the utility model and benzene class material detect NMHC in special purpose device first embodiment;
Fig. 4 is the testing result figure of benzene, toluene and dimethylbenzene in the NMHC described in utility model and benzene class material detection special purpose device first embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The inside that Fig. 1 detects special purpose device first embodiment for the NMHC described in utility model and benzene class material is communicated with schematic diagram.Technical way of the present utility model is to provide a kind of NMHC and benzene class material detects special purpose device, as shown in Figure 1, in the first embodiment of the present utility model, described benzene class material is benzene, toluene and dimethylbenzene, described NMHC and benzene class material detect special purpose device and comprise the first detecting device 1, second detecting device 2, first polarity chromatographic column 3, second polarity chromatographic column 8, total hydrocarbon chromatographic column specially 6, molecular sieve chromatography post 7, first valve 10, second valve 11, first carrier gas source of the gas 12, second carrier gas source of the gas 13, 3rd carrier gas source of the gas 14, 4th carrier gas source of the gas 15, first quantitative loop 4, second quantitative loop 5, 3rd quantitative loop 9, sample gas inlet 16, sample gas outlet 17 and exhausr port 18, wherein, described first carrier gas source of the gas 12 is successively through the first valve 10, second polarity chromatographic column 8, first valve 10, finally be communicated with described exhausr port 17, the second described carrier gas source of the gas 13, successively through the first valve 10, molecular sieve chromatography post 7, is finally communicated with described first detecting device 1, described 3rd carrier gas source of the gas 14, successively through the second valve 11, total hydrocarbon chromatographic column specially 6, is finally communicated with described first detecting device 1, described 4th carrier gas source of the gas 15, successively through the second valve 11, first polarity chromatographic column 3, is finally communicated with described second detecting device 2, described sample gas inlet 16 is successively through described second valve 11, first quantitative loop 5, second valve 11, second quantitative loop 4, second valve 11, first valve 10, 3rd quantitative loop 9, first valve 10, finally export 17 with described sample gas to be communicated with, described first valve 10 is ten-way valve, comprise ten connectors 1001 ~ 1010, wherein, the two ends of described 3rd quantitative loop 9 connect the first connector 1001 and the 8th connector 1008 of described first valve 10 respectively, described first carrier gas source of the gas 12 communicates with the second connector 1002 of described first valve 10, the two ends of described second polarity chromatographic column 8 connect the 3rd connector 1003 and the 7th connector 1007 of described first valve 10 respectively, the two ends of described molecular sieve chromatography post 7 connect the 4th connector 1004 and the first detecting device 1 of described first valve 10 respectively, described second carrier gas source of the gas 13 communicates with the 5th connector 1005 of described first valve 10, described sample gas outlet 17 is the 9th connector 1009 of described first valve 10, 6th connector 1006 of described first valve 10 is exhausr port, tenth connector 1010 of described first valve 10 is the first connected entrance.Described second valve 11 is ten-way valve, comprise ten connectors 1101 ~ 1110, wherein, the two ends of described second quantitative loop 4 connect the 4th connector 1104 and the first connector 1101 of described second valve 11 respectively, the two ends of described first polarity chromatographic column 3 connect the second connector 1102 and the second detecting device 2 of described second valve 11, the two ends of described first quantitative loop 5 connect the 8th connector 1108 and the 5th connector 1105 of described second valve 11 respectively, the two ends of described total hydrocarbon chromatographic column specially 6 connect the 6th connector 1106 and the first detecting device 1 of described second valve 11 respectively, described 3rd carrier gas source of the gas 14 is communicated with the 7th connector 1107 of described second valve 11, 9th connector 1109 of described sample gas inlet 16 and described second valve, tenth connector 1110 of described second valve 11 is the second connected entrance.
Further, as shown in Figure 1, described first carrier gas source of the gas 12 is communicated with by the 7th connector 1007 of the 3rd connector 1003 of the second connector 1002 of described first valve 10, described first valve 10, described second polarity chromatographic column 8, described first valve 10 and described exhausr port 1006 successively, described second carrier gas source of the gas 13 is communicated with by the 5th connector 1005 of described first valve 10, the 4th connector 1004 of described first valve 10, described molecular sieve chromatography post 7 and described first detecting device 1 successively, described 3rd carrier gas source of the gas 14 is communicated with described first detecting device 1 by the 6th connector 1106 of the 7th connector 1107, second valve 11 of described second valve 11, described total hydrocarbon chromatographic column specially 6 successively, described 4th carrier gas source of the gas 15 is communicated with described second detecting device 2 by the second connector 1102 of the 3rd connector 1103 of described second valve 11, described second valve 11, described first polarity chromatogram 3 successively, described sample gas inlet 16 is successively by the 9th connector 1109 of described second valve 11, 8th connector 1108 of described second valve 11, described first quantitative loop 5, 5th connector 1105 of described second valve 11, 4th connector 1104 of described second valve 11, described second quantitative loop 4, first connector 1101 of described second valve 11, described second connected entrance 1110, described first connected entrance 1010, first connector 1001 of described first valve 10, described 3rd quantitative loop 9, 8th connector 1008 of described first valve 10 is communicated with evacuation port 1009, until described sample gas outlet 7, described molecular sieve chromatography post 7 is communicated with described first detecting device 1 by zero dead volume threeway 19 with described total hydrocarbon chromatographic column specially 6, described first polarity chromatographic column 3 is communicated with described second detecting device 2.
Further, in the first embodiment of the present utility model, described second polarity chromatographic column 8 is PQ polarity chromatographic column, PQ polarity chromatographic column and middle polarity chromatographic column, described molecular sieve chromatography post 7 is 5A molecular sieve chromatography post, described total hydrocarbon chromatographic column specially 6 is the empty chromatographic column of deactivation process, and the packing material of described first polarity chromatographic column 3 is PEG20M, and described first detecting device 1 and described second detecting device 2 are FID hydrogen flame particle detector.
Fig. 2 is the first embodiment planar structure schematic diagram that NMHC described in the utility model and benzene class material detect special purpose device.As shown in Figure 2, carrier gas auxiliary electron pressure stream control module 20, be mainly used in controlling the carrier gas needed for each component analysis, first detecting device controller 21 is for controlling the first detecting device 1 required air, hydrogen and 1 tunnel carrier gas source of the gas, second detecting device controller 22 is for controlling the second detecting device 2 required air and hydrogen, first valve 10 has a quantitative loop 9 and carries blowing function, methane is only made to enter the first detecting device 1, second valve 12 has two quantitative loop 4 and 5, carry out analysis NMHC and benzene class material respectively, first independent heating pillar case 23 is for providing the independent analysis temperature of molecular sieve chromatography post 7 and the first polarity chromatographic column 3, second independent heating pillar case 24 is for providing the independent analysis temperature of the second polarity chromatographic column 8 and total hydrocarbon chromatographic column specially 6, first detecting device 1 is for detecting NMHC, second detecting device 2 is for detecting benzene class material, in the first embodiment of the present utility model, second detecting device 2 is for detecting benzene, toluene, dimethylbenzene, film valve drive system 25 is for controlling the open and-shut mode of the first valve 10 and the second valve 11, output module 26 can provide 4-20mA current output mode and Upper system to establish a communications link.
As depicted in figs. 1 and 2, when NMHC described in the utility model and benzene class material detection special purpose device are started working, the required sample gas detected is passed into by sample gas inlet 16, composition in sample gas passes through along with each carrier gas in the first valve 10 and the second valve 11, finally, enter NMHC in the first valve 10 through the second polarity chromatographic column 8 and molecular sieve chromatography post 7, finally enter the first detecting device 1 and analyze; And the benzene class material entered in the second valve 11 enters the second detecting device by the first polarity chromatographic column 3 analyzes, enter NMHC in the second valve 11 then through total hydrocarbon chromatographic column specially 6, the reddest quiet first detecting device 1 of eating is analyzed, in the process, first quantitative loop 4 and the second quantitative loop 5 are for controlling the sample tolerance entering the second valve 11, and the 3rd quantitative loop 9 is for controlling the sample tolerance entering the first valve 10.
Fig. 3 is the testing result figure that NMHC described in the utility model and benzene class material detect NMHC in special purpose device first embodiment; Fig. 4 is the testing result figure of benzene, toluene and dimethylbenzene in the NMHC described in utility model and benzene class material detection special purpose device first embodiment.
As shown in Figure 3 and Figure 4, NMHC described in the utility model and benzene class material is utilized to detect the examination criteria gas of special purpose device, wherein, the concentration of NMHC calibrating gas, as shown in table 1:
| Methane (mg/m3) | Propane (mg/m3) | Nitrogen |
| 7.2 | 58.9 | More than |
And the concentration of the calibrating gas of benzene, toluene and dimethylbenzene, as shown in table 2:
| Benzene (mg/m3) | Toluene (mg/m3) | Dimethylbenzene (mg/m3) | Nitrogen |
| 18.3 | 47.1 | 76.0 | More than |
Testing result is as shown in Fig. 3, Fig. 4 and table 3:
Detect in special purpose device first embodiment at NMHC described in the utility model and benzene class material, after gas repeatedly sample introduction, detect its repeatability, detecting device RSD% scope, all within 3%, all meets testing requirement standard.
In sum, adopt NMHC described in the utility model and benzene class material to detect special purpose device and can reach some beneficial effect following:
1, NMHC described in the utility model and benzene class material detect in special purpose device and adopt two detecting devices simultaneously, NMHC analyzed by a detecting device, and benzene class material analyzed by another detecting device, and the two analysis is carried out simultaneously, do not affect mutually, analytical work is uninterrupted;
2, NMHC described in the utility model and benzene class material detect in special purpose device and provide four tunnel carrier gas sources of the gas, and described four tunnel carrier gas sources of the gas are completely independent, do not interfere with each other, NMHC and the complete independent detection of benzene class material;
3, NMHC described in the utility model and benzene class material detect the detection that special purpose device can carry out NMHC and benzene class material continuously, ensure that the stability of gas chromatography work, achieve high-level efficiency and analyze NMHC and benzene class material.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a NMHC and benzene class material detect special purpose device, it is characterized in that, described NMHC and benzene class material detect special purpose device and comprise the first detecting device (1), second detecting device (2), first polarity chromatographic column (3), second polarity chromatographic column (8), total hydrocarbon chromatographic column specially (6), molecular sieve chromatography post (7), first valve (10), second valve (11), first carrier gas source of the gas (12), second carrier gas source of the gas (13), 3rd carrier gas source of the gas (14), 4th carrier gas source of the gas (15), first quantitative loop (4), second quantitative loop (5), 3rd quantitative loop (9), sample gas inlet (16), the outlet of sample gas (17) and exhausr port (18), wherein, described first carrier gas source of the gas (12) is successively through the first valve (10), second polarity chromatographic column (8), first valve (10), finally be communicated with described exhausr port (17), the second described carrier gas source of the gas (13), successively through the first valve (10), molecular sieve chromatography post (7), is finally communicated with described first detecting device (1), described 3rd carrier gas source of the gas (14), successively through the second valve (11), total hydrocarbon chromatographic column specially (6), is finally communicated with described first detecting device (1), described 4th carrier gas source of the gas (15), successively through the second valve (11), the first polarity chromatographic column (3), is finally communicated with described second detecting device (2), described sample gas inlet (16), successively through described second valve (11), the first quantitative loop (5), the second valve (11), the second quantitative loop (4), the second valve (11), the first valve (10), the 3rd quantitative loop (9), the first valve (10), finally exports (17) with described sample gas and is communicated with.
2. NMHC according to claim 1 and benzene class material detect special purpose device, it is characterized in that, described first valve (10) is ten-way valve, comprise ten connectors (1001 ~ 1010), wherein, the two ends of described 3rd quantitative loop (9) connect the first connector (1001) and the 8th connector (1008) of described first valve (10) respectively, described first carrier gas source of the gas (12) communicates with second connector (1002) of described first valve (10), the two ends of described second polarity chromatographic column (8) connect the 3rd connector (1003) and the 7th connector (1007) of described first valve (10) respectively, the two ends of described molecular sieve chromatography post (7) connect the 4th connector (1004) and first detecting device (1) of described first valve (10) respectively, described second carrier gas source of the gas (13) communicates with the 5th connector (1005) of described first valve (10), the 9th connector (1009) that described sample gas outlet (17) is described first valve (10), 6th connector (1006) of described first valve (10) is exhausr port, tenth connector (1010) of described first valve (10) is the first connected entrance.
3. NMHC according to claim 2 and benzene class material detect special purpose device, it is characterized in that, described second valve (11) is ten-way valve, comprise ten connectors (1101 ~ 1110), wherein, the two ends of described second quantitative loop (4) connect the 4th connector (1104) and first connector (1101) of described second valve (11) respectively, the two ends of described first polarity chromatographic column (3) connect the second connector (1102) and second detecting device (2) of described second valve (11), the two ends of described first quantitative loop (5) connect the 8th connector (1108) and the 5th connector (1105) of described second valve (11) respectively, the two ends of described total hydrocarbon chromatographic column specially (6) connect the 6th connector (1106) and first detecting device (1) of described second valve (11) respectively, described 3rd carrier gas source of the gas (14) is communicated with the 7th connector (1107) of described second valve (11), 9th connector (1109) of described sample gas inlet (16) and described second valve, tenth connector (1110) of described second valve (11) is the second connected entrance.
4. NMHC according to claim 3 and benzene class material detect special purpose device, it is characterized in that, described first carrier gas source of the gas (12) is communicated with by the 7th connector (1007) of second connector (1002) of described first valve (10), the 3rd connector (1003) of described first valve (10), described second polarity chromatographic column (8), described first valve (10) and described exhausr port (1006) successively, described second carrier gas source of the gas (13) is communicated with by the 4th connector (1004) of the 5th connector (1005) of described first valve (10), described first valve (10), described molecular sieve chromatography post (7) and described first detecting device (1) successively, described 3rd carrier gas source of the gas (14) is communicated with described first detecting device (1) by the 7th connector (1107) of described second valve (11), the 6th connector (1106) of the second valve (11), described total hydrocarbon chromatographic column specially (6) successively, described 4th carrier gas source of the gas (15) is communicated with described second detecting device (2) by the 3rd connector (1103) of described second valve (11), second connector (1102) of described second valve (11), described first polarity chromatogram (3) successively, described sample gas inlet (16) is successively by the 9th connector (1109) of described second valve (11), 8th connector (1108) of described second valve (11), described first quantitative loop (5), 5th connector (1105) of described second valve (11), 4th connector (1104) of described second valve (11), described second quantitative loop (4), first connector (1101) of described second valve (11), described second connected entrance (1110), described first connected entrance (1010), first connector (1001) of described first valve (10), described 3rd quantitative loop (9), 8th connector (1008) of described first valve (10) is communicated with evacuation port (1009), until described sample gas outlet (7), described molecular sieve chromatography post (7) is communicated with described first detecting device (1) by zero dead volume threeway (19) with described total hydrocarbon chromatographic column specially (6), described first polarity chromatographic column (3) is communicated with described second detecting device (2).
5. the NMHC according to any one of claim 1-4 and benzene class material detect special purpose device, and it is characterized in that, described second polarity chromatographic column (8) is middle polarity chromatographic column.
6. the NMHC according to any one of claim 1-4 and benzene class material detect special purpose device, and it is characterized in that, described molecular sieve chromatography post (7) is 5A molecular sieve chromatography post.
7. the NMHC according to any one of claim 1-4 and benzene class material detect special purpose device, it is characterized in that, the empty chromatographic column that described total hydrocarbon chromatographic column specially (6) is deactivation process.
8. the NMHC according to any one of claim 1-4 and benzene class material detect special purpose device, and it is characterized in that, the packing material of described first polarity chromatographic column (3) is PEG20M.
9. the NMHC according to any one of claim 1-4 and benzene class material detect special purpose device, and it is characterized in that, described first detecting device (1) and described second detecting device (2) are FID hydrogen flame particle detector.
10. NMHC according to claim 1 and benzene class material detect special purpose device, and it is characterized in that, described benzene class material is benzene, toluene and dimethylbenzene.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520199074.2U CN204479528U (en) | 2015-04-03 | 2015-04-03 | NMHC and benzene class material detect special purpose device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199074.2U CN204479528U (en) | 2015-04-03 | 2015-04-03 | NMHC and benzene class material detect special purpose device |
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| CN204479528U true CN204479528U (en) | 2015-07-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388238A (en) * | 2015-12-11 | 2016-03-09 | 力合科技（湖南）股份有限公司 | Detection apparatus |
| CN105572257A (en) * | 2015-12-31 | 2016-05-11 | 杭州谱育科技发展有限公司 | Methane-free total hydrocarbon and benzene series online detection device and method |
| CN105929032A (en) * | 2016-02-26 | 2016-09-07 | 常州磐诺仪器有限公司 | On-line monitoring system for non-methane total hydrocarbons |
| CN105987967A (en) * | 2015-04-03 | 2016-10-05 | 常州磐诺仪器有限公司 | Device special for detecting non-methane hydrocarbon and benzene substances |
| CN106645461A (en) * | 2016-11-14 | 2017-05-10 | 苏州冷杉精密仪器有限公司 | Online detector for non-methane hydrocarbon and benzene compounds |
-
2015
- 2015-04-03 CN CN201520199074.2U patent/CN204479528U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987967A (en) * | 2015-04-03 | 2016-10-05 | 常州磐诺仪器有限公司 | Device special for detecting non-methane hydrocarbon and benzene substances |
| CN105987967B (en) * | 2015-04-03 | 2018-08-14 | 常州磐诺仪器有限公司 | Non-methane total hydrocarbons and benezene material detect dedicated unit |
| CN105388238A (en) * | 2015-12-11 | 2016-03-09 | 力合科技（湖南）股份有限公司 | Detection apparatus |
| CN105572257A (en) * | 2015-12-31 | 2016-05-11 | 杭州谱育科技发展有限公司 | Methane-free total hydrocarbon and benzene series online detection device and method |
| CN105929032A (en) * | 2016-02-26 | 2016-09-07 | 常州磐诺仪器有限公司 | On-line monitoring system for non-methane total hydrocarbons |
| CN106645461A (en) * | 2016-11-14 | 2017-05-10 | 苏州冷杉精密仪器有限公司 | Online detector for non-methane hydrocarbon and benzene compounds |
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