CN109520955A - A kind of ultraviolet spectrometry oil content analyzer and its application method - Google Patents
A kind of ultraviolet spectrometry oil content analyzer and its application method Download PDFInfo
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- CN109520955A CN109520955A CN201811507637.4A CN201811507637A CN109520955A CN 109520955 A CN109520955 A CN 109520955A CN 201811507637 A CN201811507637 A CN 201811507637A CN 109520955 A CN109520955 A CN 109520955A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000000870 ultraviolet spectroscopy Methods 0.000 title claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 67
- 238000000605 extraction Methods 0.000 claims abstract description 36
- 239000002904 solvent Substances 0.000 claims abstract description 21
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 239000003463 adsorbent Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 101
- 239000000284 extract Substances 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 26
- 239000002699 waste material Substances 0.000 claims description 21
- 238000003760 magnetic stirring Methods 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 11
- 230000010412 perfusion Effects 0.000 claims description 9
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 8
- 235000019792 magnesium silicate Nutrition 0.000 claims description 8
- 239000000391 magnesium silicate Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 231100000331 toxic Toxicity 0.000 abstract description 5
- 230000002588 toxic effect Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 19
- 238000002798 spectrophotometry method Methods 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002035 hexane extract Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000000622 liquid--liquid extraction Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of ultraviolet spectrometry oil content analyzer and its application method, which includes stirring extraction device, separator, adsorbent equipment and the optical measuring device being arranged by detecting step sequence.It solves the problems, such as to contact toxic solvent during ultraviolet survey oil, stirring extraction, separation and measurement process do not need experimenter and contact solvent, ensure that personnel's is healthy and safe.
Description
Technical field
The present invention relates to detecting instrument technical field, in particular to a kind of ultraviolet spectrometry oil content analyzer and its application methods.
Background technique
Ultraviolet oil measuring method is national ecological environmental protection portion oils in the measurement water of newest publication in October 10 in 2018
New method, People's Republic of China's state environment protecting standard: the measurement ultraviolet spectrometry light of HJ970-2018 water-quality petroleum
Degree method (tentative).There are two standards for the method for oils in existing measurement water, and one is infrared spectrophotometer, the other is purple
Outer spectrophotometry, infrared spectrophotometer measure sanitary sewage, the oils in industrial wastewater, ultraviolet spectrophotometry measurement ground
Petroleum-type in table water, underground water and seawater.
The measuring principle of ultraviolet spectrophotometry are as follows: be according to the principle of optical absorption law Lambert-Beer's law, petroleum
Class has a photometric absorbance at a length of 225nm of ultraviolet light wave, and the concentration of absorbance and petroleum-type is proportional, calculates petroleum-type
Concentration.
The measurement method of existing ultraviolet spectrophotometry are as follows: using n-hexane as extractant, pass through manually method
The oils in water is extracted into n-hexane with separatory funnel, then n-hexane extract is filtered by magnesium silicate, filters out polarity
Animals and plants oils, extract liquor by ultraviolet specrophotometer measure, obtain the concentration of the petroleum-type in water.
Because extractant n-hexane is toxic to people, operator can have been touched in existing manual operation detection process
Malicious solvent, thus the health of operator is adversely affected.It is badly in need of a kind of ultraviolet spectrometry oil content analyzer thus and its makes
With method, experimenter is made to avoid contact with toxic solvent, and can make to measure more acurrate reliable.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of ultraviolet spectrometry oil content analyzer and its application methods, solve purple
During exterior measuring oil the problem of contact toxic solvent, it is molten that stirring extraction, separation and measurement process do not need experimenter's contact
Agent ensure that personnel's is healthy and safe.
A kind of ultraviolet spectrometry oil content analyzer is provided, including by detecting step sequence setting stirring extraction device, separator,
Adsorbent equipment and optical measuring device.
Preferably, the stirring extraction device includes that stirring pool, magnetic stirring apparatus, the feed liquor that is connected to stirring pool are total
Pipe, downtake pipe, delivery pipe and evacuated tube, connect liquid feeding pump in the feed liquor house steward, the delivery pipe and evacuated tube with
Drain pipe connection, connects the first valve on the downtake pipe, connects the second valve on the delivery pipe, in the evacuated tube
Connect third valve；The magnetic stirring apparatus is arranged outside stirring pool, and magnetic stirrer is equipped in stirring pool.
Preferably, the evacuated tube is connected to the minimum point of stirring pool, the downtake pipe with stirring pool most
The tie point of high point connection, delivery pipe and stirring pool is between stirring pool highs and lows.
Preferably, the separator includes separating bottle, the extract liquor memotron being connected to separating bottle upper end opening, with
The second exhaust pipe and liquid back pipe of extract liquor memotron connection connect the 4th valve on second exhaust pipe, and liquid back pipe is far from extraction
It takes one end of liquid memotron to be connected to the feed liquor house steward between liquid feeding pump and stirring pool, circulating pump is connected on liquid back pipe；It is described
Drain pipe is connected to separating bottle and protrudes into inside separating bottle；Waste liquid discharge pipe and siphon pipe, waste liquid are connected in the lower end of separating bottle
The 5th valve is connected on discharge pipe, connects the 6th valve on siphon pipe.
Preferably, the link position of extract liquor liquid storage pipe and liquid back pipe is lower than siphon pipe extreme higher position.
Preferably, the separating bottle is biconial structure.
Preferably, the adsorbent equipment include be connected to and protrude into extract liquor memotron it is defeated inside extract liquor memotron
Liquid pipe, connection extraction liquid pump, the one end of perfusion tube far from extract liquor memotron are connected to wherein one end of absorbing cylinder on perfusion tube,
The other end of absorbing cylinder connects catheter, is linked in sequence the 7th valve, sample cell and the on catheter by liquid communication direction
Eight valves, fill adsorbing medium in absorbing cylinder.
Preferably, the adsorbing medium is anhydrous sodium sulfate or/and magnesium silicate.
Preferably, the optical measuring device includes ultraviolet-uisible spectrophotometer and microprocessor, it is described it is ultraviolet can
See that spectrophotometer includes radiation source, monochromator and detector, the inlet circuit connection of detector and microprocessor, micro process
The circuit of output terminal connection display screen and printer of device.
The present invention also provides a kind of application methods of ultraviolet spectrometry oil content analyzer, comprising the following steps:
1. opening the first valve and the 4th valve, sent solvent hexane in stirring pool from feed liquor house steward by liquid feeding pump,
It intakes again after the completion sample, water inlet sample makes stirrer start high-speed rotation magnetic stirring apparatus energization after starting, water sample and solvent
It is sufficiently mixed, water sample is continuously transported in stirring pool；
2. opening the second valve when solution will be full of stirring pool, closing the first valve, water sample ceaselessly enters stirring pool
In extracted, water sample extracted enters drain pipe by the second valve and flows in separating bottle；
3. when the liquid in separating bottle rise on separating bottle cylindrical section along when, open the 6th valve；When in separating bottle
When solution rises to extract liquor liquid storage pipe top liquid back pipe nozzle, start circulating pump, the solvent on extract liquor liquid storage pipe top is taken out
It returns to and continues to extract in stirring pool, enter in siphon pipe by waste liquid extracted, when waste water rises to siphon pipe most
When high-end, waste liquid will be discharged in waste liquid barrel by siphon pipe；
4. when whole water samples into it is complete after, close liquid feeding pump and magnetic stirring apparatus, delay closed circulating pump, third valve after 10 seconds
Door is opened, and the second valve is closed；Then restarting liquid feeding pump is inflated into stirring pool, and all solution in stirring pool are passed through
Third valve is pressed onto separating bottle, stops liquid feeding pump after the completion, is closed third valve, is completed the extraction of water sample；
5. being full of extract liquor, extract liquor pump startup, the extraction of certain volume in the extract liquor liquid storage pipe on separating bottle top
Liquid is extracted into absorbing cylinder, carries out anhydrous sodium sulfate absorption and adsorption of magnesium silicate, so that containing only petroleum-type in extract liquor, completes to inhale
It is attached, the 7th valve is opened, in extract liquor injection sample cell；
6. radiation source generates the complex light comprising wavelength for 225nm ultraviolet light, the extract liquor being irradiated in sample cell, extraction
Petroleum-type in liquid can absorb a part of ultraviolet light, and the light after absorbing enters monochromator, by spectro-grating 225nm's
Ultraviolet light is separated；Detector is converted into the ultraviolet signal of 225nm to be sent in microprocessor after electric signal and handle, measurement
As a result display screen is sent to show and printer printing；
7. detection terminates, the 5th valve, the 4th valve and the 8th valve are opened, in the waste liquid and sample cell in separating bottle
Extract liquor be discharged in waste liquid barrel, the 4th valve, the 5th valve, the 6th valve and the 8th valve are closed after the completion of whole liquid drains
Door, entire measurement process are completed.
The invention has the benefit that
1, it solves the problems, such as to contact toxic solvent during ultraviolet survey oil, stirring extraction, separation and measurement process are not
It needs experimenter to contact solvent, ensure that personnel's is healthy and safe.
2, extraction process is stirred using the magnetic stirrer implementation of magnetic stirring apparatus, makes two kinds of liquid that density is different
Body is sufficiently mixed in stirring pool, achievees the purpose that extract completely.Magnetic stirring apparatus is not contacted with liquid, guarantees that solution will not be by
Pollution guarantees accuracy of measurement.
3, by the position of selection downtake pipe, delivery pipe and evacuated tube and stirring pool tie point, can make to extract
Shi Midu big waste water is discharged, and the small solvent of density will not drain, and can increase the abundant of solvent and water sample to greatest extent
Contact, to improve extraction efficiency.
4, separating bottle is designed to that biconial structure carries out extract liquor extracted with waste water because density difference is automatically separated, certainly
It is dynamic to collect extract liquor.
5, the link position of extract liquor liquid storage pipe and liquid back pipe is lower than siphon pipe extreme higher position, and it is a small amount of to guarantee that extraction is thrown away
Extractant is withdrawn into stirring pool.
6, anhydrous sodium sulfate and magnesium silicate adsorbent, automatic absorbing extraction is added in extract liquor automatic absorbing in absorbing cylinder
Vegetable and animals oils in liquid in micro moisture and oils.
7, optical measuring device is divided again after absorbing light using sample cell solution, can reduce the refraction reflection damage of light
It loses, guarantees the intensity of light.
8, extraction and separation system is not only applicable to the oils in n-hexane extraction water, is also applied for any liquid-liquid extraction side
Method is widely used in other liquid extractions as long as the density of extractant is just less than the density for being extracted liquid.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
It is as shown in the figure:
1, stirring pool, 2, feed liquor house steward, 3, downtake pipe, 4, delivery pipe, 5, evacuated tube, 6, liquid feeding pump, 7, drain pipe,
8, the first valve, the 9, second valve, 10, third valve, 11, stirrer, 12, separating bottle, 13, extract liquor memotron, 14, second
Exhaust pipe, 15, liquid back pipe, the 16, the 4th valve, 17, circulating pump, 18, waste liquid discharge pipe, 19, siphon pipe, the 20, the 5th valve,
21, the 6th valve, 22, perfusion tube, 23, extraction liquid pump, 24, absorbing cylinder, 25, catheter, the 26, the 7th valve, 27, sample cell,
28, the 8th valve, 29, microprocessor, 30, radiation source, 31, monochromator, 32, detector.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
A kind of ultraviolet spectrometry oil content analyzer, as shown in Figure 1, including the stirring extraction device being arranged by detecting step sequence, dividing
From device, adsorbent equipment and optical measuring device.
The stirring extraction device includes stirring pool 1, magnetic stirring apparatus, the feed liquor house steward 2, first being connected to stirring pool 1
Exhaust pipe 3, delivery pipe 4 and evacuated tube 5, connect liquid feeding pump 6 in the feed liquor house steward 2, the delivery pipe 4 and evacuated tube 5 with
Drain pipe 7 is connected to, and connects the first valve 8 on the downtake pipe 3, the second valve 9, the row are connected on the delivery pipe 4
Third valve 10 is connected on blank pipe 5.The magnetic stirring apparatus is arranged outside stirring pool 1, is equipped in stirring pool 1 magnetic
Stirrer 11, magnetic stirring apparatus generate magnetic field promotion and are placed on the magnetic progress of stirrer 11 circumferential running in stirring pool 1, from
And achieve the purpose that stir liquid, in the present embodiment, the magnetic stirring apparatus uses existing magnetic stirring apparatus.
In the present embodiment, the evacuated tube 5 is connected to the minimum point of stirring pool 1, can be in favor of by the liquid in stirring pool 1
Body emptying.The downtake pipe 3 is connected to with the highest point of stirring pool 1, can be to avoid liquid is discharged in exhaust process.Row
The tie point for putting pipe 4 and stirring pool 1 is located between 1 highs and lows of stirring pool, density big waste water when can make to extract
It is discharged, the small solvent of density will not drain, and can increase coming into full contact with for solvent and water sample to greatest extent, to improve extraction
Take efficiency.
The extract liquor memotron 13 that the separator includes separating bottle 12, is connected to 12 upper end opening of separating bottle, with extraction
The second exhaust pipe 14 and liquid back pipe 15 for taking liquid memotron 13 to be connected to connect the 4th valve 16 on second exhaust pipe 14, return liquid
The one end of pipe 15 far from extract liquor memotron 13 is connected to the feed liquor house steward 2 between liquid feeding pump 6 and stirring pool 1, in liquid back pipe 15
Upper connection circulating pump 17.The drain pipe 7 is connected to separating bottle 12 and protrudes into inside separating bottle 12.Connect in the lower end of separating bottle 12
Waste liquid discharge pipe 18 and siphon pipe 19 are connect, the 5th valve 20 is connected on waste liquid discharge pipe 18, connects the 6th valve on siphon pipe 19
21, extract liquor liquid storage pipe and the link position of liquid back pipe 15 are lower than 19 extreme higher position of siphon pipe, guarantee a small amount of extraction that extraction is thrown away
Agent is taken to be withdrawn into stirring pool 1.In the present embodiment, the separating bottle 12 is biconial structure.
The adsorbent equipment includes being connected to extract liquor memotron 13 and protruding into the perfusion tube inside extract liquor memotron 13
22, connection extraction liquid pump 23 on perfusion tube 22, the one end of perfusion tube 22 far from extract liquor memotron 13 and absorbing cylinder 24 are wherein
One end connection, the other end of absorbing cylinder 24 connect catheter 25, liquid communication direction sequential connection the 7th are pressed on catheter 25
Valve 26, sample cell 27 and the 8th valve 28, fill adsorbing medium in absorbing cylinder 24, and in the present embodiment, the absorption is situated between
Matter is anhydrous sodium sulfate or/and magnesium silicate.
The optical measuring device includes ultraviolet-uisible spectrophotometer and microprocessor 29, and the UV, visible light is divided light
Degree meter includes radiation source 30, monochromator 31 and detector 32, and the detector 32 is photoelectric tube or photomultiplier tube, detector 32
It is connect with the inlet circuit of microprocessor 29, the circuit of output terminal connection display screen and printer of microprocessor 29.In this reality
It applies in example, the ultraviolet-uisible spectrophotometer uses existing ultraviolet-uisible spectrophotometer, display screen and printer using existing
There are a display screen and printer, the physical circuit connection relationship of microprocessor 29 and detector 32, display screen and printer is existing
Well-known technique, details are not described herein.
In the present embodiment, for ease of operation, first valve 8, the second valve 9, third valve 10, the 4th valve
16, the 5th valve 20, the 6th valve 21, the 7th valve 26 and the 8th valve 28 are solenoid valve, the first valve 8, the second valve
9, third valve 10, the 4th valve 16, the 5th valve 20, the 6th valve 21, the 7th valve 26 and the 8th valve 28 respectively with it is micro-
The inlet circuit of processor 29 connects.First valve 8, the second valve 9, third valve 10, the 4th valve 16, the 5th valve
The 20, the 6th valve 21 of door, the 7th valve 26 and the 8th valve 28 are all made of existing solenoid valve, each solenoid valve and microprocessor 29
Circuit connecting relation is existing well-known technique, and details are not described herein.It can control the unlatching of respective valves by microprocessor 29
With closure.
Illustrate a kind of application method of ultraviolet spectrometry oil content analyzer below with reference to embodiment shown in FIG. 1, comprising the following steps:
1. the first valve 8 and the 4th valve 16 are opened, from feed liquor house steward 2 sends solvent hexane to and stir by liquid feeding pump 6
It mixes in pond 1, sample of intaking again after the completion, water inlet sample makes stirrer 11 start high speed turn clockwise magnetic stirring apparatus energization after starting
It is dynamic, water sample and solvent are sufficiently mixed, water sample is continuously transported in stirring pool 1；
2. opening the second valve 9 when solution will be full of stirring pool 1, the first valve 8 is closed, water sample, which ceaselessly enters, to be stirred
It mixes and is extracted in pond 1, water sample extracted is flowed in separating bottle 12 by the second valve 9 into drain pipe 7；
3. when the liquid in separating bottle 12 rise on 12 cylindrical section of separating bottle along when, open the 6th valve 21；Work as separation
When solution in bottle 12 rises to extract liquor liquid storage pipe top 15 nozzle of liquid back pipe, due to being had in stirring pool 1 in extraction process
A part of solvent hexane is discharged in separating bottle 12, since the density of n-hexane is less than water, the n-hexane being thrown out of in stirring pool 1
It can swim in separating bottle 12 on liquid level, start circulating pump 17, the solvent (n-hexane) thrown out is withdrawn into stirring pool 1 and is relayed
It is continuous to be extracted, enter in siphon pipe 19 by waste liquid extracted, when waste water rises to the most significant end of siphon pipe 19, waste liquid
It will be discharged in waste liquid barrel by siphon pipe 19；
4. when whole water samples into it is complete after, close liquid feeding pump 6 and magnetic stirring apparatus, circulating pump 17 closed after delay 10 seconds, the
Three valves 10 are opened, and the second valve 9 is closed.Then restarting liquid feeding pump 6 is inflated into stirring pool 1, the institute in stirring pool 1
There is solution to be pressed onto separating bottle 12 by third valve 10, stop liquid feeding pump 6 after the completion, close third valve 10, completes water sample
Extraction.
5. being full of extract liquor in the extract liquor liquid storage pipe on 12 top of separating bottle, extraction liquid pump 23 starts, certain volume
Extract liquor is extracted into absorbing cylinder 24, anhydrous sodium sulfate absorption and adsorption of magnesium silicate is carried out, so that containing only petroleum-type in extract liquor；
After completing absorption, the 7th valve 26 is opened, in extract liquor injection sample cell 27.
6. radiation source 30 generate comprising wavelength be 225nm ultraviolet light complex light, the extract liquor being irradiated in sample cell 27,
Petroleum-type in extract liquor can absorb a part of ultraviolet light, and the concentration of petroleum-type is directly proportional to absorbance；Light after absorbing
Into monochromator 31, the ultraviolet light of 225nm is separated by spectro-grating；Ultraviolet signal of the detector 32 225nm
It is converted into being sent in microprocessor 29 after electric signal handling, according to Lambert-Beer's law, measurement result send display screen to show and beat
The printing of print machine.
7. detection terminates, open the 5th valve 20, the 4th valve 16 and the 8th valve 28, in separating bottle 12 waste liquid and
Extract liquor in sample cell 27 is discharged in waste liquid barrel, and the 4th valve 16, the 5th valve 20, the are closed after the completion of whole liquid drains
Six valves 21 and the 8th valve 28, entire measurement process are completed.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or
It is realized using the prior art, details are not described herein；Above embodiments and attached drawing are only used to illustrate the technical scheme of the present invention not
It is limitation of the present invention, is described the invention in detail referring to preferred embodiment, the ordinary skill people of this field
Member is it should be appreciated that variation, remodeling, the addition that those skilled in the art are made within the essential scope of the present invention
Or replacement also should belong to claims of the invention without departure from spirit of the invention.
Claims (10)
1. a kind of ultraviolet spectrometry oil content analyzer, it is characterised in that: including the stirring extraction device by the setting of detecting step sequence, separation
Device, adsorbent equipment and optical measuring device.
2. a kind of ultraviolet spectrometry oil content analyzer according to claim 1, it is characterised in that: the stirring extraction device includes stirring
Mix pond (1), magnetic stirring apparatus, the feed liquor house steward (2) being connected to stirring pool (1), downtake pipe (3), delivery pipe (4) and emptying
It manages (5), connects liquid feeding pump (6) on the feed liquor house steward (2), the delivery pipe (4) and evacuated tube (5) connect with drain pipe (7)
It is logical, it is connected the first valve (8) on the downtake pipe (3), connects the second valve (9), the emptying on the delivery pipe (4)
It manages and connects third valve (10) on (5)；The magnetic stirring apparatus setting is external in stirring pool (1), and band is equipped in stirring pool (1)
Magnetic stirrer (11).
3. a kind of ultraviolet spectrometry oil content analyzer according to claim 2, it is characterised in that: the evacuated tube (5) and stirring pool
(1) minimum point connection, the downtake pipe (3) are connected to with the highest point of stirring pool (1), delivery pipe (4) and stirring pool
(1) tie point is located between stirring pool (1) highs and lows.
4. a kind of ultraviolet spectrometry oil content analyzer according to claim 1, it is characterised in that: the separator includes separating bottle
(12), the extract liquor memotron (13) being connected to separating bottle (12) upper end opening, second be connected to extract liquor memotron (13)
Exhaust pipe (14) and liquid back pipe (15) connect the 4th valve (16) on second exhaust pipe (14), and liquid back pipe (15) is far from extraction
Feed liquor house steward (2) between one end of liquid memotron (13) and liquid feeding pump (6) and stirring pool (1) is connected to, on liquid back pipe (15)
It connects circulating pump (17)；The drain pipe (7) is connected to separating bottle (12) and protrudes into separating bottle (12) inside；In separating bottle (12)
Lower end connection waste liquid discharge pipe (18) and siphon pipe (19), the 5th valve (20) of connection on waste liquid discharge pipe (18), siphon pipe
(19) the 6th valve (21) is connected on.
5. a kind of ultraviolet spectrometry oil content analyzer according to claim 4, it is characterised in that: extract liquor liquid storage pipe and liquid back pipe
(15) link position is lower than siphon pipe (19) extreme higher position.
6. a kind of ultraviolet spectrometry oil content analyzer according to claim 5, it is characterised in that: the separating bottle (12) is biconial
Structure.
7. a kind of ultraviolet spectrometry oil content analyzer according to claim 1, it is characterised in that: the adsorbent equipment includes and extraction
Liquid memotron (13) is connected to and protrudes into the internal perfusion tube (22) of extract liquor memotron (13), and perfusion tube connects extract liquor on (22)
It pumps (23), perfusion tube (22) is connected to far from the one end of extract liquor memotron (13) with wherein one end of absorbing cylinder (24), absorbing cylinder
(24) other end connects catheter (25), on catheter (25) by liquid communication direction be linked in sequence the 7th valve (26),
Sample cell (27) and the 8th valve (28) fill adsorbing medium in absorbing cylinder (24).
8. a kind of ultraviolet spectrometry oil content analyzer according to claim 7, it is characterised in that: the adsorbing medium is anhydrous slufuric acid
Sodium or/and magnesium silicate.
9. a kind of ultraviolet spectrometry oil content analyzer according to claim 1, it is characterised in that: the optical measuring device includes purple
Outer visible spectrophotometer and microprocessor (29), the ultraviolet-uisible spectrophotometer include radiation source (30), monochromator
(31) it is connect with detector (32), detector (32) with the inlet circuit of microprocessor (29), the output of microprocessor (29)
Terminal circuit connects display screen and printer.
10. a kind of ultraviolet spectrometry oil content analyzer described in any one of -9, application method include following step according to claim 1
It is rapid:
1. opening the first valve (8) and the 4th valve (16), from feed liquor house steward (2) sent solvent hexane to by liquid feeding pump (6)
In stirring pool (1), sample of intaking again after the completion, water inlet sample makes stirrer (11) to start high speed turn magnetic stirring apparatus energization after starting
It is dynamic, water sample and solvent are sufficiently mixed, water sample is continuously transported in stirring pool (1)；
2. opening the second valve (9), closing the first valve (8), water sample ceaselessly enters when solution will be full of stirring pool (1)
Stirring pool is extracted in (1), and water sample extracted enters drain pipe (7) by the second valve (9) and flows in separating bottle (12)；
3. when the liquid in separating bottle (12) rise on separating bottle (12) cylindrical section along when, open the 6th valve (21)；When point
When rising to extract liquor liquid storage pipe top liquid back pipe (15) nozzle from the solution in bottle (12), start circulating pump (17), extraction
The solvent on liquid liquid storage pipe top, which is withdrawn into stirring pool (1), to be continued to extract, and enters siphon pipe by waste liquid extracted
(19) in, when waste water rises to the most significant end of siphon pipe (19), waste liquid will be discharged in waste liquid barrel by siphon pipe (19)；
4. when whole water samples into it is complete after, close liquid feeding pump (6) and magnetic stirring apparatus, close circulating pump (17) after delay 10 seconds, the
Three valves (10) are opened, and the second valve (9) is closed；Then restarting liquid feeding pump (6) inflation into stirring pool (1), stirring
All solution in pond (1) are pressed onto separating bottle (12) by third valve (10), stop liquid feeding pump (6) after the completion, close the
Three valves (10), complete the extraction of water sample；
5. being full of extract liquor in the extract liquor liquid storage pipe on separating bottle (12) top, extraction liquid pump (23) starting, certain volume
Extract liquor is extracted into absorbing cylinder (24), anhydrous sodium sulfate absorption and adsorption of magnesium silicate is carried out, so that containing only petroleum in extract liquor
Class after completing absorption, opens the 7th valve (26), in extract liquor injection sample cell (27)；
6. radiation source (30) generate comprising wavelength be 225nm ultraviolet light complex light, the extract liquor being irradiated in sample cell (27),
Petroleum-type in extract liquor can absorb a part of ultraviolet light, and the light after absorbing enters monochromator (31), by spectro-grating
The ultraviolet light of 225nm is separated；Detector (32) is sent to micro process after the ultraviolet signal of 225nm is converted into electric signal
Processing in device (29), measurement result send display screen to show and printer printing；
7. detection terminates, the 5th valve (20), the 4th valve (16) and the 8th valve (28) are opened, useless in separating bottle (12)
Extract liquor in liquid and sample cell (27) is discharged in waste liquid barrel, and the 4th valve (16), the 5th are closed after the completion of whole liquid drains
Valve (20), the 6th valve (21) and the 8th valve (28), entire measurement process are completed.
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Cited By (1)
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| CN112730295A (en) * | 2021-03-08 | 2021-04-30 | 上海昂林科学仪器股份有限公司 | Full-automatic portable ultraviolet oil measurement device and oil measurement method |
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