CN109030842B - A kind of nutrients in sea water in-situ study device - Google Patents
A kind of nutrients in sea water in-situ study device Download PDFInfo
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- CN109030842B CN109030842B CN201810904083.5A CN201810904083A CN109030842B CN 109030842 B CN109030842 B CN 109030842B CN 201810904083 A CN201810904083 A CN 201810904083A CN 109030842 B CN109030842 B CN 109030842B
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 235000015097 nutrients Nutrition 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 70
- 238000005259 measurement Methods 0.000 claims abstract description 64
- 238000005070 sampling Methods 0.000 claims abstract description 42
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 238000004737 colorimetric analysis Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 230000001808 coupling Effects 0.000 claims description 27
- 238000010168 coupling process Methods 0.000 claims description 27
- 238000005859 coupling reaction Methods 0.000 claims description 27
- 239000003365 glass fiber Substances 0.000 claims description 21
- 239000002699 waste material Substances 0.000 claims description 16
- 238000005260 corrosion Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 230000003287 optical Effects 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 241001236653 Lavinia exilicauda Species 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 210000002445 Nipples Anatomy 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 description 12
- 239000011780 sodium chloride Substances 0.000 description 12
- 230000000050 nutritive Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000023298 conjugation with cellular fusion Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011175 product filtration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000021037 unidirectional conjugation Effects 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Abstract
The invention discloses a kind of nutrients in sea water in-situ study devices, including measure control and photoelectric conversion module, take sampling module, power supply module, underwater in-situ filtering module, reagent and standard specimen memory module and colorimetric analysis measurement module；Underwater in-situ filtering module and plunger pump are installed in the first cabin, colorimetric analysis measurement module, full-automatic selection valve head and reagent and standard specimen memory module are mounted in the second cabin, power supply module, measurement control and photoelectric conversion module are mounted in third cabin, and mutually isolation seals between two adjacent cabins and all liquid flow path and connector are external except cabin.The present apparatus has done specific division to Light Electrical and liquid channel system, the all sealing assembly of light, electrically and mechanically rotating part, fluid path part is all placed outside in water environment, pipeline breaking, the interface loosening occurred when even if accident occurs leads to liquid leakage, and apparatus subject Light Electrical part is still very safe.
Description
Technical field
The present invention relates to sea water analysis devices, and in particular to a kind of nutrients in sea water in-situ study device.
Background technique
The nutritive salt such as N, P, Si are the bases of marine food chain in seawater, study content of nutritive salt in seawater or distribution characteristics
It is the basis for studying marine biogeochemistry cyclic process.
The current detection in relation to nutrients in sea water mainly uses spot sampling, takes back on ship or bank station laboratory is located in advance
Reason and measurement, this method working efficiency is low, and sample is easy pollution, and is difficult to realize the long-term sequence of nutritive salt in seawater
Monitoring, the early warning particularly with far-reaching extra large ECOLOGICAL ENVIRONMENTAL MONITORING and time series are predicted, and above-mentioned detection method is even more unable to do what one wishes.
In recent years, with the continuous development of marine monitoring technology and progress, for nutritive salt in seawater detection technique gradually from
Laboratory moves towards live online until in situ measurement, in China, the research of the in situ detection technology in relation to nutritive salt also in
Step section, mature technology are still blank so far.With deepening continuously for ocean understanding, the country is had begun to nutrients in sea water original
Position measuring technique is paid attention to, but technology is still immature.
Patent document CN206863042U discloses " a kind of Portable seawater nutritive salt automatical analysis device ", the device
Wet-chemical colorimetric measurements based on national standard, however device liquefaction access and the equal water-stop of electronic system are in system
Portion, the catastrophic collapse of instrument caused by easily being leaked because of seawater or reagent.In addition, colorimetric measurement sample cell mostly uses traditional ratio at present
Color ware, reagent and sample consumption are big, and optical attenuation is strong, and detection sensitivity is low.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of seawater nutrition safe to use is provided
Salt in-situ study device
To achieve the above object, the technical scheme is that
A kind of nutrients in sea water in-situ study device, including measure control and photoelectric conversion module, take sampling module, power supply
Module, underwater in-situ filtering module, reagent and standard specimen memory module and colorimetric analysis measurement module；Wherein,
Power supply module respectively with measurement control and photoelectric conversion module and sampling module is taken to be electrically connected, to be controlled to measure
And photoelectric conversion module and take sampling module work provide electricity；
The measurement control and photoelectric conversion module include measure-controlling unit and photoelectric conversion unit；
The underwater in-situ filtering module is used to be filtered the collected seawater of institute；
It is described that sampling module is taken to be connected with underwater in-situ filtering module, for carrying out sampling to filtered seawater；
It takes sampling module also to connect with signal with measure-controlling unit, the work for taking sampling module is controlled by measure-controlling unit；
The reagent and standard specimen storage module are made of multiple kits and standard specimen box, take sampling module and kit and mark
Sample box phase fluid path connection, by reagent and sample delivery to taking in sampling module；
The colorimetric analysis measurement module with take sampling module phase fluid path to be connected to, for the sample for taking sampling module to be adopted
Measure analysis；Photoelectric conversion unit is connected with colorimetric analysis measurement module, with the work for colorimetric analysis measurement module
Light quantity is provided；
Described to take sampling module to include plunger pump and automatically select valve head, the plunger pump is used for filtered seawater
And the pump such as reagent, standard specimen in kit is to full-automatic selection valve head, valve head is external has several fluid path to connect for full-automatic selection
Head.
The underwater in-situ filtering module and plunger pump are installed in the first cabin, colorimetric analysis measurement module, full-automatic
Selection valve head and reagent and standard specimen memory module are mounted in the second cabin, power supply module, measurement control and photoelectric conversion mould
Block is mounted in third cabin；First cabin, the second cabin, third cabin are successively vertically arranged from low to high, two adjacent cabins
Mutually isolation seals between body and all liquid flow path and connector are external except cabin.
Watertight cable connector for powering and with host computer communication is installed on the upper end cover of the third cabin；
Optical fiber or signal cable seal nipple group for transmitting photosignal is installed in the lower cover of third cabin, in three cabins
Lower cover in also and meanwhile the service cable watertight connector group for taking sampling module is installed.
The liquid outlet of the kit and standard specimen box covers buckle joint by male and female threading and automatically selects the external liquid of valve head
Pipeline connector is connected；Male female one end of male and female threading set buckle joint is connected with the liquid outlet of kit and standard specimen box, male and female threading
Mother/male the one end for covering buckle joint is connected by the corrosion-resistant hose fluid path connector external with full-automatic selection valve head, is disconnected public
Female threading hitch, fluid path cut-off, kit and standard specimen box are in closed state, are connected to male and female threading hitch, fluid path connection, reagent
Reagent and full-automatic selection valve head perforation in box；The kit and standard specimen box are made by light screening material and surface face
Color is different.
Connector being provided in the lower end of the kit and standard specimen box, plate being installed, connector, which was installed, is provided with public affairs on plate
Female threading set buckle joint installation screw, takes sampling module fixation hole and cable via hole at installation fixed link automatically.
The colorimetric analysis measurement module includes colorimetric measurement sample cell；The colorimetric measurement sample cell is by liquid core waveguide pipe
And it is assemblied in " Z " type light liquid coupling composition at liquid core waveguide pipe both ends, the length of liquid core waveguide pipe can appoint as needed
Meaning is adjusted, and the diameter of liquid core waveguide pipe is adjustable within the scope of 1500um；Its light liquid coupling aperture of the smooth liquid coupling is water
Close structure design.
The photoelectric conversion unit is by optical fiber, light source power supply control subelement and the imported spectrum monitoring subelement group of optical fiber
At, patch optical fiber in the smooth liquid coupling optical output port, by colorimetric photometric signal pass through light be connected to incoming fiber optic input
In type spectrum monitoring subelement；Light input port patches optical fiber in light liquid coupling, and optical fiber output type light energy is led to
It crosses optical fiber and imports colorimetric measurement sample cell.
The photoelectric conversion unit controls subelement by light source power supply and analog electrical signal processing subelement forms；Described
The optical output port of light liquid coupling installs photodetector, and contrastive colours photometric signal carries out photodetection, by photodetection
Signal handles subelement by electrical connection access analog electrical signal；Light is installed in the light input port of the smooth liquid coupling
Source is electrically connected power supply control between light source and light source power supply control subelement.
The power control module is a magnetic switch, to pass through external magnet Untouched control power supply process.
The underwater in-situ filtering module is made of outer filter screen and interior filtration core two parts, and the outer filter screen is by titanium valve
Or 316 powder of stainless steel sintering constitute, the interior filtration core is greater than by the sintering bar construction with aperture, the aperture of outer filter screen
The aperture of sintered bar；The sintered bar is titanium valve or 16 stainless steel powders or copper powder sintered bar.
The fluid path input adapter of Z-type light liquid coupling in the colorimetric measurement sample cell water inlet and full-automatic selection
A channel in several external connectors of valve head is connected by corrosion-resistant pipeline watertight, the colorimetric measurement sample cell water outlet
The fluid path out splice going splice of Z-type light liquid coupling connect with waste liquid collecting bag by corrosion-resistant waste discharge pipeline watertight, waste liquid is received
Collect bag and be higher than colorimetric analysis measurement module, to realize that exhaust waste discharge is unimpeded.
Compared with prior art, the present invention the beneficial effect is that:
1, nutrients in sea water in-situ measurement device of the invention has done specific division to Light Electrical and liquid channel system, light,
The all sealing assembly of electrically and mechanically rotating part, fluid path part is all placed outside in water environment, occurs when even if accident occurs
Pipeline breaking, interface loosening lead to liquid leakage, and instrument theme Light Electrical part is still very safe, is for wet-chemical analysis
The advantage and breakthrough of one increasing.
2, structure of the invention is compact to design, flexible, and disassembly, assembly are easy, and measurement process is former in combination with sample materialization environment
Position is automatically finished, and only needs to change light source；It can be used to the in situ of each heavy metal species, nutritive salt and other environmental parameters to survey
Amount has wide application market and good application prospect.
3, the used sample cell high sensitivity of the present invention, applied widely, sample and reagent dosage are small, are highly suitable for
Underwater long-term sequence in-situ monitoring and early warning can realize extremely low concentration and wide dynamic range battalion by adjusting the length of sample cell
Support the highly sensitive detection of the tinctures such as salt.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of nutrients in sea water in-situ study device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of colorimetric measurement sample cell；
Fig. 3 is the structural schematic diagram figure that connector installed plate；
Fig. 4 is the structural schematic diagram of third cabin upper end cover；
Fig. 5 is the structural schematic diagram of third cabin lower cover；
In figure: 1, measurement control and photoelectric conversion module；2, sampling module is taken；3, underwater in-situ filtering module；4, reagent
And standard specimen memory module；5, colorimetric analysis measurement module；6, connector installed plate；7, the first cabin；8, the second cabin；9, third
Cabin；51, colorimetric measurement sample cell；61, installation screw；62, reagent and standard specimen Storage Box install fixation hole；91, it communicates and supplies
Electric watertight cable connector；91, cable sealed joint group；93, service cable watertight connector group；511, liquid core waveguide pipe；512, light
Liquid coupling；5120, optical output port；5121, light input port；5122, fluid path input adapter；5123, fluid path output connects
Head.
Specific embodiment
The contents of the present invention are described in further details with reference to the accompanying drawings and detailed description.
Embodiment:
Refering to fig. 1 shown in -5, a kind of nutrients in sea water in-situ study device provided in this embodiment include measurement control and
Photoelectric conversion module 1 takes sampling module 2, power supply module (not shown), underwater in-situ filtering module 3, reagent and standard specimen storage mould
Block 4 and colorimetric analysis measurement module 5.
Wherein, the power supply module respectively with measurement control and photoelectric conversion module 1 and sampling module 2 is taken to be electrically connected, with
For measurement control and photoelectric conversion module 1 and the work of sampling module 2 is taken to provide electricity, specifically, which is mainly
One magnetic switch, can be by external magnet Untouched control power supply process, in order to which the adjusting of power supply process controls, and the survey
Amount control and photoelectric conversion module 1 are then mainly made of measure-controlling unit and photoelectric conversion unit two parts.
For the underwater in-situ filtering module 3 then for being filtered to a collected seawater, provided herein is underwater
Filtering module in situ is miniature Multistage filtering device, and for the volume for reducing instrument, which is in patent document
Optimized on the basis of " a kind of underwater in-situ filter device " disclosed in CN102553325B, mainly by outer filter screen with
Interior filtration core two parts composition, for the reliability for ensuring to filter in situ, which is sintered by titanium valve or 316 powder of stainless steel
It constitutes, there is rigidity well, pressure resistance is indeformable, and the interior filtration core then can by certain pore size sintering bar construction, the sintered bar
Titanium valve, 316 stainless steel powders or copper powder sintered bar are selected, in addition, to increase the corrosion resistant performance of filter device, sintered bar selects copper sintering
The aperture of stick, outer filter screen is greater than interior filter stick.
This take sampling module 2 mainly by for sample take out spread to mixing high precision piston pump and its electro-mechanical driving device and
The full-automatic selection valve head and its electro-mechanical driving device chosen for sample, reagent are constituted, this automatically selects the external M of valve head
(M > 1) fluid path connector, a sample introduction connector in underwater in-situ filtering module 3 and the full-automatic selection external M connector of valve head it
Between be connected to by corrosion-resistant pipe fitting, with realize filtered seawater is sampled；In addition, being the different sea areas of adaptation, not same
Product filtration needs, filtering module 3 can mating installation N (N >=1) it is a more than, and this take sampling module 2 work mainly by controlling
What unit processed was controlled.
And the reagent and standard specimen storage module 4 are made of multiple kits and standard specimen box, to ensure reagent long-term reliability,
The reagent and standard specimen box are made of light screening material, and liquid is connected between the liquid outlet and the external fluid path connector of valve head of kit, to increase
The safety for adding instrument avoids standard specimen and reagent leakage in kit, it is preferred that connect with the liquid outlet of standard specimen box in kit
Connector with cutoff function, cutoff function connector are that male and female threading covers buckle structure, male female one end of connector and going out for kit
Liquid mouth is connected, and other end mother/pin end threading of connector is connected with full-automatic selection valve head by corrosion-resistant hose, disconnects set
Button, fluid path cut-off, kit and standard specimen box are in closed state, are connected to hitch, and fluid path is connected to, the examination in kit and standard specimen box
Agent and standard specimen and full-automatic selector valve penetrate through.Further, to improve the safety that instrument uses, misconnection is avoided accidentally to connect, reagent
Different color designs is done respectively with standard specimen box.Meanwhile in order to increase safety that kit, standard specimen box use and flexibly
Property, as shown in figure 3, having cutoff function connector to install plate 6 in the design of the lower end of reagent and standard specimen box, crossing design on plate has cut-off
Function crosses plate connector installation screw 61, reagent and standard specimen Storage Box installation fixation hole 62, automatic sampling module fixation hole and cable
Via hole.The one end connecting in plate cutoff function connector with automatic sampling module is crossed to be fixed on plate by installation screw 61.
And the colorimetric analysis measurement module 5 is then mainly made of colorimetric measurement sample cell 51, as shown in Fig. 2, colorimetric is surveyed
Amount sample cell 51 is coupled by being totally reflected AF-2400 liquid core waveguide pipe 511 and being assemblied in " Z " type light liquid at liquid core waveguide pipe both ends
Connector 512 is constituted, and the length of liquid core waveguide pipe 511 can be adjusted arbitrarily as needed, and the diameter of liquid core waveguide pipe 511 is in 1500um
It is adjustable in range；For convenient for safe and applicable, in situ measurement, being somebody's turn to do its light liquid coupling aperture 512 of " Z " type light liquid coupling is water
Close structure design.In addition, increasing its flexibility used to expand the use scope of colorimetric measurement sample cell；The photoelectricity turns
Change there are two types of unit designs: the first, photoelectric conversion unit is defeated by optical fiber output light source, light source power supply control subelement and optical fiber
Enter type spectrum monitoring subelement composition；Second, photoelectric conversion unit controls subelement and analog electrical signal by light source power supply
Manage subelement composition；And in the light liquid coupling 512 there are two types of the designs of optical output port 5120: the first is, directly in light
Output port 5120 installs photodetector, and contrastive colours photometric signal carries out photodetection, by photodetection signal by being electrically connected
It accesses analog electrical signal and handles subelement.Second is to patch optical fiber in optical output port 5120, colorimetric photometric signal is led to
Cross the imported spectrum monitoring subelement of optical fiber in light connection access measurement and photoelectric conversion unit.Correspondingly, light liquid coupling
In 512 there are two types of the designs of light input port 5121: the first is, directly installs light source, light source and survey in light input port 5121
Power supply control is electrically connected between corresponding light source power supply control subelement in amount control and photoelectric conversion module.It is for second,
Light input port 5121 patches optical fiber in light liquid coupling, the optical fiber output that will be provided in measurement control and photoelectric conversion module
Type light energy imports colorimetric measurement sample cell by optical fiber, and the coupling of " Z " type light liquid of the colorimetric measurement sample cell water inlet connects
A channel in the fluid path input adapter 5122 of head and the full-automatic selection external M connector of valve head passes through corrosion-resistant pipeline watertight
Connection, the fluid path out splice going splice 5123 and waste liquid collecting bag of " Z " type light liquid coupling of colorimetric measurement sample cell water outlet are logical
Cross the connection of corrosion-resistant waste discharge pipeline watertight, waste liquid collecting bag be suspended on by waste fluid bag hook slightly above measure top with ensure into
Sample system exhaust waste discharge is unimpeded.
Above-mentioned underwater in-situ filtering module 3 and plunger pump are installed on 7 in the first cabin, colorimetric analysis measurement module 5, complete
It automatically selects valve head and reagent and standard specimen memory module 4 is mounted in the second cabin 8, power supply module, measurement control and photoelectricity
Conversion module 1 is mounted in third cabin 9；First cabin 7, the second cabin 8, third cabin 9 are successively vertically arranged from low to high,
Mutually isolation seals between two adjacent cabins and all liquid flow path and connector are external except cabin.That is,
All electronic systems, optical system and the mechanical moving element of the present apparatus are sealed in sealing cabin, all liquid
Flow path and connector are external in water body, it is ensured that liquid flow path and light, mechanical, electrical component are completely isolated, avoid instrument liquid line
Leakage or connector breakage failure to critical components such as Light Electricals bring fatefulue damage, while by the way that the present apparatus is designed to three
Layer structure can be easily installed, dismantle and scene safely and effectively work in situ.
In addition, being installed on the upper end cover of above-mentioned third cabin in order to further improve the safe handling of the present apparatus
Have for power and with the communication of host computer communication and power supply watertight cable connector 91；It is installed in the lower cover of third cabin
There are the optical fiber or signal cable seal nipple group 92 for transmitting photosignal, gone back in the lower cover of three cabins while being equipped with
Take the service cable watertight connector group 93 of sampling module.
The application method of this nutrients in sea water in-situ measurement device is specific as follows:
S1. by kit, the cutoff function connector of the liquid outlet of standard specimen box and BULKHEAD UNION be clamped, it is ensured that reagent pure water and
Titer and full-automatic selector valve penetrate through；Kit, standard specimen box are installed fixed link by reagent and standard specimen Storage Box and are fixed simultaneously.
S2. waste fluid bag bottle and the fluid path connector of " Z " type light liquid coupling of colorimetric measurement sample cell water outlet are passed through
Corrosion-resistant waste discharge pipeline watertight connection, is suspended on instrument upper end；
S3. it controls instrument by magnetic switch to power on, analyzer, which enters, waits user instruction state, can receive at this time upper
The operational order of machine, user can according to need by host computer user interface control automatic sampling and colorimetric analysis and to dress
It sets and carries out the work such as cleaning；If not receiving specific instruction in fixed time period or receiving automatic data collection instruction,
Into the analysis of nutritive salt automatic sampling and information stored on-site.
S4. after working, magnetic switch controls instrument power-off, if not having to for a long time, by reagent bag box and standard specimen box from instrument
It is taken out on device, waste fluid bag is removed, cleaning rear venting storage is carried out to pipeline
It follows that nutrients in sea water in-situ study device provided by the invention has following technical advantage:
1, nutrients in sea water in-situ measurement device of the invention has done specific division to Light Electrical and liquid channel system, light,
The all sealing assembly of electrically and mechanically rotating part, fluid path part is all placed outside in water environment, occurs when even if accident occurs
Pipeline breaking, interface loosening lead to liquid leakage, and instrument theme Light Electrical part is still very safe, is for wet-chemical analysis
One great advantage and breakthrough.
2, structure of the invention is compact to design, flexible, and disassembly, assembly are easy, and measurement process is former in combination with sample materialization environment
Position is automatically finished, and only needs to change light source；It can be used to the in situ of each heavy metal species, nutritive salt and other environmental parameters to survey
Amount has wide application market and good application prospect.
3, the used sample cell high sensitivity of the present invention, applied widely, sample and reagent dosage are small, are highly suitable for
Underwater long-term sequence in-situ monitoring and early warning can realize extremely low concentration and wide dynamic range battalion by adjusting the length of sample cell
Support the highly sensitive detection of the tinctures such as salt.
Simply to illustrate that technical concepts and features of the invention, its purpose is allows in the art above-described embodiment
Those of ordinary skill cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent changes or modifications that the essence of content according to the present invention is made, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of nutrients in sea water in-situ study device, which is characterized in that including measurement control and photoelectric conversion module, take sampling
Module, power supply module, underwater in-situ filtering module, reagent and standard specimen memory module and colorimetric analysis measurement module；Wherein,
The power supply module respectively with measurement control and photoelectric conversion module and sampling module is taken to be electrically connected, to be controlled to measure
And photoelectric conversion module and take sampling module work provide electricity；
The measurement control and photoelectric conversion module include measure-controlling unit and photoelectric conversion unit；
The underwater in-situ filtering module is used to be filtered the collected seawater of institute；
It is described that sampling module is taken to be connected to underwater in-situ filtering module phase fluid path, for carrying out sampling to filtered seawater；
It takes sampling module also to connect with signal with measure-controlling unit, the work for taking sampling module is controlled by measure-controlling unit；
The reagent and standard specimen storage module are made of multiple kits and standard specimen box, take sampling module and kit and standard specimen box
Phase fluid path connection, by reagent and standard specimen sample delivery to taking in sampling module；
The colorimetric analysis measurement module with take sampling module phase fluid path to be connected to, with for take sampling module to be adopted sample carry out
Measurement analysis；Photoelectric conversion unit is connected with colorimetric analysis measurement module, is provided with the work for colorimetric analysis measurement module
Light quantity；
It is described that take sampling module include plunger pump and full-automatic selection valve head, the plunger pump be used for filtered seawater and
Kit and reagent, standard specimen in standard specimen box are pumped to full-automatic selection valve head, and valve head is external several fluid path for full-automatic selection
Connector；
The underwater in-situ filtering module and plunger pump are installed in the first cabin, colorimetric analysis measurement module, full-automatic selection
Valve head and reagent and standard specimen memory module are mounted in the second cabin, power supply module, measurement control and photoelectric conversion module peace
In third cabin；First cabin, the second cabin, third cabin are successively vertically arranged from low to high, two adjacent cabins it
Between mutually isolation sealing and all liquid flow path and connector are external except cabin.
2. nutrients in sea water in-situ study device as described in claim 1, which is characterized in that in the upper end of the third cabin
Cover the watertight cable connector being equipped with for powering and with host computer communication；It is installed in the lower cover of third cabin useful
In the optical fiber or signal cable seal nipple group of transmitting photosignal, also while being equipped in the lower cover of three cabins and take sampling
The service cable watertight connector group of module.
3. nutrients in sea water in-situ study device as claimed in claim 2, which is characterized in that the kit and standard specimen box
Liquid outlet covers the buckle joint fluid path connector external with valve head is automatically selected by male and female threading and is connected；Male and female threading covers buckle joint
Male female one end be connected with the liquid outlet of kit and standard specimen box, male and female threading cover buckle joint mother/male one end pass through it is corrosion-resistant
The hose fluid path connector external with full-automatic selection valve head is connected, and disconnects male and female threading hitch, fluid path cut-off, kit and mark
Sample box is in closed state, is connected to male and female threading hitch, and fluid path is connected to, and the reagent in kit is passed through with full-automatic selection valve head
It is logical；The kit and standard specimen box are made by light screening material and surface color is different.
4. nutrients in sea water in-situ study device as claimed in claim 3, which is characterized in that in the kit and standard specimen box
Lower end be provided with connector plate be installed, connector, which was installed, is provided with male and female threading set buckle joint installation screw, installation on plate
Fixed link takes sampling module fixation hole and cable via hole automatically.
5. nutrients in sea water in-situ study device as described in claim 1, which is characterized in that the colorimetric analysis measurement module
Including colorimetric measurement sample cell；The colorimetric measurement sample cell is by liquid core waveguide pipe and is assemblied in liquid core waveguide pipe both ends
" Z " type light liquid coupling is constituted, and the length of liquid core waveguide pipe can be adjusted arbitrarily as needed, and the diameter of liquid core waveguide pipe exists
It is adjustable within the scope of 1500um；Its light liquid coupling aperture of the smooth liquid coupling is watertight structure design.
6. nutrients in sea water in-situ study device as claimed in claim 5, which is characterized in that the photoelectric conversion unit is by light
Fine, light source power supply control subelement and the imported spectrum monitoring subelement composition of optical fiber, in the smooth liquid coupling light output
Port patches optical fiber, and colorimetric photometric signal is connected in the imported spectrum monitoring subelement of incoming fiber optic by light；In light liquid coupling
Light input port patches optical fiber in splice grafting head, and optical fiber output type light energy is imported colorimetric measurement sample cell by optical fiber.
7. nutrients in sea water in-situ study device as claimed in claim 5, which is characterized in that the photoelectric conversion unit is by light
Source power supply control subelement and analog electrical signal processing subelement composition；It is installed in the optical output port of the smooth liquid coupling
Photodetector, contrastive colours photometric signal carry out photodetection, and photodetection signal is passed through electrical connection access analog electrical signal
Handle subelement；The smooth liquid coupling light input port install light source, light source and light source power supply control subelement it
Between be electrically connected power supply control.
8. nutrients in sea water in-situ study device as described in claim 1, which is characterized in that the power control module is one
Magnetic switch, to pass through external magnet Untouched control power supply process.
9. nutrients in sea water in-situ study device as described in claim 1, which is characterized in that the underwater in-situ filtering module
It is made of outer filter screen and interior filtration core two parts, the outer filter screen is made of titanium valve or the sintering of 316 powder of stainless steel, described
For interior filtration core by the sintering bar construction with aperture, the aperture of outer filter screen is greater than the aperture of sintered bar；The sintered bar is titanium
Powder or 16 stainless steel powders or copper powder sintered bar.
10. nutrients in sea water in-situ study device as claimed in claim 5, which is characterized in that the colorimetric measurement sample cell
One in the fluid path input adapter of Z-type light liquid coupling in water inlet and full-automatic selection several external connectors of valve head
Channel is connected by corrosion-resistant pipeline watertight, and the fluid path of the Z-type light liquid coupling of the colorimetric measurement sample cell water outlet is defeated
Connector is connect with waste liquid collecting bag by corrosion-resistant waste discharge pipeline watertight out, and waste liquid collecting bag is higher than colorimetric analysis measurement module,
To realize that exhaust waste discharge is unimpeded.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610161A (en) * | 2020-04-29 | 2020-09-01 | 中国科学院南海海洋研究所 | Circulation system, seawater nutrient salt in-situ measurement device and measurement method |
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