CN201173891Y - Total organic carbon total nitrogen combined measuring instrument - Google Patents

Total organic carbon total nitrogen combined measuring instrument Download PDF

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Publication number
CN201173891Y
CN201173891Y CNU2008200320828U CN200820032082U CN201173891Y CN 201173891 Y CN201173891 Y CN 201173891Y CN U2008200320828 U CNU2008200320828 U CN U2008200320828U CN 200820032082 U CN200820032082 U CN 200820032082U CN 201173891 Y CN201173891 Y CN 201173891Y
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China
Prior art keywords
sample
organic carbon
total nitrogen
reaction chamber
disposal
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Expired - Fee Related
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CNU2008200320828U
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Chinese (zh)
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赵双平
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赵双平
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Priority to CNU2008200320828U priority Critical patent/CN201173891Y/en
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Abstract

The utility model discloses a united detection instrument for total organic carbon and total nitrogen, belonging to chemical analytical instruments. The united detection instrument is provided with a non-dispersive infrared gas detector and a chemical reflected light detector in series, a composite structure of a six-way valve and an injector pump, a stacked drying water treatment system, a high-temperature combustion apparatus and a detection flow path, wherein the non-dispersive infrared gas detector and the chemical reflected light detector detect total organic carbon and total nitrogen; the composite structure is connected with a computer and accomplishes the pretreatment and automatic sample introduction for samples; the stacked drying water treatment system carries out thorough drying treatment to the samples; the high-temperature combustion apparatus and a detection flow path are respectively used for water samples and solid samples. The united detection instrument can carry out synchronous detection to the total organic carbon and total nitrogen in the water samples, the solid samples and liquid samples containing a great quantity of granules and suspended substances, obviously raises detection efficiency, detection sensitivity and accuracy, and expands application range.

Description

Total organic carbon total nitrogen combined measuring instrument
Technical field
The utility model relates to the detector of carbon, nitrogen content in a kind of working sample, particularly can the combined measuring instrument that total organic carbon and total nitrogen are measured synchronously in the fluid sample of a large amount of particles, suspension be arranged to water sample, solid sample and other.
Background technology
Total organic carbon in the sample (TOC), total nitrogen (TN) are the important indicators that the reflection sample is subjected to the organism pollution level.Organic contaminant is present in water body, soil, the deposit, directly influences environmental quality, and existent environment of people has been caused very big harm, and therefore, the monitoring of total organic carbon and total nitrogen has great significance to control energy-saving and emission-reduction, protection environment.Total carbon in the sample (TC) is made up of total organic carbon (TOC) and inorganic carbon (IC), deducts IC concentration from TC concentration, just can obtain TOC concentration.Total organic carbon (TOC) analyser is more and more universal in the application of China, and product spreads all over the water sample analysis, and solid sample analyses such as soil, mud are external imported product substantially wherein.For the mensuration of total organic carbon in the sample, by the principle of work difference, generally adopt high-temperature catalytic oxidizing process, wet-chemical oxidizing process at present, detecting device is non-dispersion infrared detector (NDIR).Mensuration for total nitrogen in the sample (TN), adopt chemoluminescence method, detecting device is chemiluminescence detector (CLD), and a few external product is only arranged as the annex of total organic carbon instrument and single detection part, the solid determination of total nitrogen content system that does not have independent design, only can be used to synchronous mensuration, and can not the synchronous mensuration of the fluid sample of a large amount of particles, suspension be arranged solid sample and other to the water sample total nitrogen.In the domestic equipment, the product that adopts wet-chemical oxidizing process principle of work is only arranged, and do not have the finish-drying disposal system of moisture content in reliable and stable full-automatic sampling system and the sample analysis process, The pretreatment etc. are all finished by manual.Therefore, existing total organic carbon, determination of total nitrogen content instrument detection efficiency are low, and detection sensitivity, accuracy are not high, and usable range is limited.
The utility model content
The purpose of this utility model is in order to solve the deficiencies in the prior art, a kind of total organic carbon, total nitrogen combined measuring instrument are provided, to water sample, solid sample with contain in the fluid sample of a large amount of particles, suspension total organic carbon, total nitrogen and measure synchronously, improve detection efficiency and detection sensitivity, accuracy, enlarge usable range.
The technical solution of the utility model is: total organic carbon total nitrogen combined measuring instrument comprises detecting device, sample feeding and disposal system, its improvements are that described detecting device is made of non-dispersion infrared detector (NDIR) 16 and chemiluminescence detector (CLD) 17 series connection, described sample feeding and disposal system are divided into water sample sample introduction and disposal system and solid sample and contain a large amount of particles, the fluid sample sample introduction and the disposal system of suspension, wherein in water sample sample introduction and the disposal system, the inlet of six-way valve 1 links to each other with syringe pump 2, six outlets respectively with catalytic combustion pipe 5, IC reaction chamber 4, specimen storage device 7, titer reservoir 8 and two waste liquid receivers 3,9 link to each other, described catalytic combustion pipe 5 is located in the oxidizing fire stove 14, its endpiece successively with sample gas refrigerating module 12, TC reaction chamber 6, three-way solenoid valve 10, after membrane type irradiation modules 11 links to each other, link to each other with above-mentioned detecting device again; The endpiece of described IC reaction chamber 4 with after three-way solenoid valve 10, membrane type irradiation modules 11 link to each other, links to each other with above-mentioned detecting device successively again; Solid sample and containing in the fluid sample sample introduction and disposal system of a large amount of particles, suspension, the endpiece that is arranged on the solid high-temp combustion pipe 19 in the solid total nitrogen combustion furnace 20 is successively with after solenoid valve 18, membrane type irradiation modules 11 link to each other, link to each other with above-mentioned detecting device, described IC reaction chamber, TC reaction chamber are respectively equipped with cooling jacket again.
Above-mentioned cooling jacket is semiconductor cooling-part (13) and (15) that are wrapped in IC reaction chamber, TC reactor chamber outer wall; Described six-way valve, syringe pump partly link to each other with computer control respectively.
Adopt suitching type six-way valve and specialized flow injection pump, under computer program control, can finish the various pre-service from sample, the overall process to the sample auto injection makes the instrument compact integral structure, and is simple to operation, improves detection efficiency.
Build up drying water treatment system, adopt the cascade system of sample gas refrigerating module, semiconductor cooling-part, membrane type irradiation modules, thoroughly sample gas is carried out dried, make it before entering NDIR detecting device and CLD detecting device, not contain any moisture content, enlarged the sampling volume of sample, from existing sample introduction 3mL, expand to 5mL, effectively improved the sensitivity and the accuracy of detecting device.
The utility model not only can carry out the detection of total organic carbon and total nitrogen to water sample, also can realize general solid sample such as mud, soil, sediment and the fluid sample that contains a large amount of particles and suspension are carried out the detection of total organic carbon and total nitrogen, really realized the synchronous mensuration of total organic carbon, total nitrogen in the full sample scope, the usable range of instrument is wide.
Description of drawings
Accompanying drawing is each building block syndeton synoptic diagram of the utility model.
Embodiment
Referring to accompanying drawing, the inlet of six-way valve 1 and syringe pump 2 are linked to each other by pipeline, six outlets respectively with catalytic combustion pipe 5, IC reaction chamber 4, specimen storage device 7, titer reservoir 8 links to each other with 9 with two waste liquid receivers 3, catalytic combustion pipe 5 is located in the oxidizing fire stove 14, its endpiece successively with sample refrigerating module 12, TC reaction chamber 6, three-way solenoid valve 10, membrane type irradiation modules 11 and NDIR detecting device 16, CLD detecting device 17 links to each other, the endpiece of IC reaction chamber 4 is examined inferior and three-way solenoid valve 10, membrane type irradiation modules 11 and NDIR, the CLD detecting device links to each other, IC reaction chamber wherein, the TC reacting outdoor wall has semiconductor cooling-part 13 and 15 respectively, the endpiece that is located at the solid high-temp combustion pipe 19 in the solid total nitrogen combustion furnace 20 successively with solenoid valve 18, membrane type irradiation modules 11 and NDIR, the CLD detecting device links to each other.Under computer control, by the switching of six-way valve, extract and push titer, sample liquid by syringe pump, can carry out the automatic cleaning of titer, sample liquid to pipeline.Be expelled in the catalytic combustion pipe 14 when water sample switches through six-way valve, generate gas, enter the TC measurement that the NDIR detecting device carries out sample through refrigerating module 12, TC reaction chamber 6, three-way solenoid valve 10, membrane type irradiation modules 11; Inject IC reaction chamber 4 when water sample switches through six-way valve, resultant of reaction enters the NDIR detecting device through three-way solenoid valve 10, membrane type irradiation modules 11, and the IC that carries out sample measures, and then measures TOC, enters the CLD detecting device again, and the TN that carries out sample measures.Put into the solid high-temp combustion pipe 19 of solid total nitrogen combustion furnace 20 when solid sample or the fluid sample that contains a large amount of particles, suspension, the sample gas that generates is through solenoid valve 18, membrane type irradiation modules 11, enter NDIR detecting device and CLD detecting device, just can measure total organic carbon and total nitrogen in the sample simultaneously.

Claims (3)

1, a kind of total organic carbon total nitrogen combined measuring instrument, comprise detecting device, sample feeding and disposal system, it is characterized in that described detecting device is made of non-dispersion infrared detector (NDIR) (16) and chemiluminescence detector (CLD) (17) series connection, described sample feeding and disposal system are divided into water sample sample introduction and disposal system and solid sample and contain a large amount of particles, the fluid sample sample introduction and the disposal system of suspension, wherein in water sample sample introduction and the disposal system, the inlet of six-way valve (1) links to each other with syringe pump (2), six outlets respectively with catalytic combustion pipe (5), IC reaction chamber (4), specimen storage device (7), titer reservoir (8) and two waste liquid receivers (3), (9) link to each other, described catalytic combustion pipe (5) is located in the oxidizing fire stove (14), its endpiece successively with sample gas refrigerating module (12), TC reaction chamber (6), three-way solenoid valve (10), membrane type irradiation modules (11) links to each other with above-mentioned detecting device after linking to each other again; The endpiece of described IC reaction chamber (4) with after three-way solenoid valve (10), membrane type irradiation modules (11) link to each other, links to each other with above-mentioned detecting device successively again; Solid sample and containing in the fluid sample sample introduction and disposal system of a large amount of particles, suspension, the endpiece that is arranged on the solid high-temp combustion pipe (19) in the solid total nitrogen combustion furnace (20) is successively with after solenoid valve (18), membrane type irradiation modules (11) link to each other, link to each other with above-mentioned detecting device, described IC reaction chamber, TC reaction chamber are respectively equipped with cooling jacket again.
2, by the described total organic carbon total nitrogen combined measuring instrument of claim 1, it is characterized in that described cooling jacket is semiconductor cooling-part (13) and (15) that are wrapped in IC reaction chamber, TC reactor chamber outer wall.
3, by the described total organic carbon total nitrogen combined measuring instrument of claim 1, it is characterized in that described six-way valve, syringe pump partly link to each other with computer control respectively.
CNU2008200320828U 2008-03-14 2008-03-14 Total organic carbon total nitrogen combined measuring instrument Expired - Fee Related CN201173891Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200320828U CN201173891Y (en) 2008-03-14 2008-03-14 Total organic carbon total nitrogen combined measuring instrument

Publications (1)

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CN201173891Y true CN201173891Y (en) 2008-12-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101963605B (en) * 2009-08-10 2011-12-14 重庆川仪自动化股份有限公司 Condenser for total organic carbon analyzer
CN110031454A (en) * 2019-05-06 2019-07-19 中山大学 A kind of the cyclic chemical luminescence detection apparatus and method of quick identification complex sample

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101963605B (en) * 2009-08-10 2011-12-14 重庆川仪自动化股份有限公司 Condenser for total organic carbon analyzer
CN110031454A (en) * 2019-05-06 2019-07-19 中山大学 A kind of the cyclic chemical luminescence detection apparatus and method of quick identification complex sample

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081231

Termination date: 20100314

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