CN114062292A - Extractor for oil measurement, full-automatic ultraviolet oil measurement device and oil measurement method thereof - Google Patents
Extractor for oil measurement, full-automatic ultraviolet oil measurement device and oil measurement method thereof Download PDFInfo
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- CN114062292A CN114062292A CN202111361204.4A CN202111361204A CN114062292A CN 114062292 A CN114062292 A CN 114062292A CN 202111361204 A CN202111361204 A CN 202111361204A CN 114062292 A CN114062292 A CN 114062292A
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- 238000005259 measurement Methods 0.000 title claims abstract description 37
- 238000000691 measurement method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 139
- 239000007788 liquid Substances 0.000 claims abstract description 105
- 238000003756 stirring Methods 0.000 claims abstract description 62
- 239000000243 solution Substances 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 29
- 238000012546 transfer Methods 0.000 claims abstract description 23
- 238000005086 pumping Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000001179 sorption measurement Methods 0.000 claims abstract description 11
- 229910052919 magnesium silicate Inorganic materials 0.000 claims abstract description 9
- 239000000391 magnesium silicate Substances 0.000 claims abstract description 9
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000019792 magnesium silicate Nutrition 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims description 40
- 238000002156 mixing Methods 0.000 claims description 19
- 239000000284 extract Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 238000002835 absorbance Methods 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000012086 standard solution Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 21
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 69
- 235000019198 oils Nutrition 0.000 description 69
- 239000010775 animal oil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 description 3
- 239000008158 vegetable oil Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
- G01N2001/4061—Solvent extraction
Abstract
The invention provides an extractor for oil measurement, a full-automatic ultraviolet oil measurement device and an oil measurement method thereof, wherein the device comprises: an extractor for measuring oil; the liquid injection pipe of the extractor for oil measurement is communicated with the first connecting port of the solution transfer device; the bottom of the separation container is provided with a water outlet which can be opened and closed, the top of the separation container is communicated with a liquid pumping pipe of the extractor for oil detection, and a second connector is communicated with the solution transfer device; the ultraviolet spectrophotometer is communicated with a third connector of the solution transfer device through a flow path, and a magnesium silicate adsorption column is arranged in the flow path; the extractant containing container is communicated with a fourth connecting port of the solution transferring device; the stirring motor of the extractor for measuring oil and the solution transfer device are controlled by a control system to automatically operate. The invention can realize the automation of the measurement process, avoid the harm of harmful reagents to human bodies, improve the operation precision, and has the advantages of portable device and strong practicability.
Description
Technical Field
The invention relates to the technical field of water quality detection devices, in particular to an extractor for oil detection, a full-automatic ultraviolet oil detection device and an oil detection method thereof.
Background
At present, oil pollution in water is relatively wide, petroleum monitoring is particularly important, the existing method for measuring petroleum in surface water in China is an ultraviolet spectrophotometry, an ultraviolet spectrophotometer and some pretreatment devices are used, the devices are complex and cannot be brought to on-site measurement, and when a pollution accident occurs, only a water sample can be brought back to a laboratory for measurement, so that the opportunity for timely tracing the source of pollutants is missed.
In conventional water sample detection, water needs to be sampled firstly, then the sample is sent to a laboratory, petroleum in the water is measured in the laboratory, firstly, manual extraction is carried out by using a separating funnel, and then, the harmful extractant is contacted by operators through the processes of layering, transferring, removing animal and vegetable oils and the like, which cannot be avoided. Also, the precision of the measurement is poor due to the inconsistency of manual operations. The existing ultraviolet spectrophotometer can not automatically add reagent, can not automatically extract and separate, also needs manual operation, and still needs to contact with harmful reagent. The whole process is more tedious, the time consumption is more, is unfavorable for going on fast of detection achievement.
Therefore, it is desirable to provide an extractor for oil measurement, a full-automatic ultraviolet oil measurement device and an oil measurement method thereof, which can solve the problems of complicated manual operation steps and high probability of contacting harmful reagents in the existing water quality detection, and can solve the problem of low efficiency caused by the inconvenience of the device and the incapability of on-site water quality detection.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an extractor for oil measurement, a full-automatic ultraviolet oil measurement device and an oil measurement method thereof, which can solve the problems of complicated manual operation steps, high probability of contacting harmful reagents and low efficiency caused by the fact that the device is inconvenient to carry and cannot be used for on-site water quality detection in the existing water quality detection. The technical scheme for realizing the purpose is as follows:
the invention provides an extractor for measuring oil, which is used for being matched with a water sample bottle and comprises:
a base;
the motor of the stirrer is arranged on the base, a stirring shaft of the stirrer rotates on the base, stirring blades are annularly arranged on the stirring shaft, and the stirring shaft is a hollow tube;
annotate liquid pipe and liquid suction pipe, annotate the liquid pipe with liquid suction pipe all locates on the base, liquid suction pipe wears to locate in the (mixing) shaft.
The extractor for measuring oil of the invention is further improved in that the base is provided with an accommodating cavity;
the cavity wall of the accommodating cavity is provided with at least one fixing lug, the middle part of the fixing lug is provided with an opening and a bearing, and the stirring shaft penetrates through the bearing;
the stirring shaft is arranged on the outer side of the motor and is in transmission with an output shaft of the motor through a belt, or,
the stirring shaft penetrates through the motor and rotates coaxially with a rotor of the motor.
The extractor for measuring oil is further improved in that the extractor further comprises a distance meter, and the distance meter is arranged on one side, close to the water sample bottle, of the base.
The extractor for measuring oil is further improved in that one side of the base, which is close to the water sample bottle, is provided with a flange, and the outer edge of the flange is matched with the shape of the bottle mouth of the water sample bottle;
the liquid injection pipe and the liquid suction pipe are arranged on the flange in a penetrating way.
The extractor for measuring oil of the invention is further improved in that the peripheral ring of the flange is provided with a sealing ring.
The extractor for measuring oil is further improved in that the end part of the liquid pumping pipe is provided with an anti-blocking groove.
The invention also provides a full-automatic ultraviolet oil testing device, which is characterized by comprising:
the extractor for oil detection;
the liquid injection pipe of the extractor for oil measurement is communicated with the first connecting port of the solution transfer device;
the separation container is a tubular container with a smaller diameter than the water sample bottle, the bottom of the separation container is provided with a water outlet which can be opened and closed, and the top of the separation container is communicated with the liquid pumping pipe of the extractor for measuring oil and a second connecting port communicated with the solution transfer device;
the ultraviolet spectrophotometer is communicated with the third connecting port of the solution transferring device through a flow path, and a magnesium silicate adsorption column is arranged in the flow path;
the extractant containing container is communicated with the fourth connecting port of the solution transferring device;
the stirring motor of the extractor for measuring oil and the solution transfer device are controlled by a control system to automatically operate.
The full-automatic ultraviolet oil measuring device is further improved in that the solution transfer device comprises a multi-way valve and an injection pump communicated with a central interface of the multi-way valve, the injection pump is controlled by the control system to automatically operate, and a plurality of outlets of the multi-way valve correspond to the plurality of connecting ports.
The full-automatic ultraviolet oil measuring device is further improved by comprising a draw-bar box, wherein the extractor for measuring oil, the solution transfer device, the separation container, the ultraviolet spectrophotometer, the extractant holding container and the control system are integrally arranged in the draw-bar box.
The invention also provides an oil measuring method, which is characterized by comprising the following steps:
step S1, providing the full-automatic ultraviolet oil measuring device;
step S2, providing a water sample bottle and sampling;
step S3, placing the extractor for oil measurement in the water sample bottle, starting the control system, controlling the injection pump to automatically extract a certain volume of extractant from the extractant containing container through the fourth connecting port of the multi-way valve by the control system, and injecting the extractant into the water sample bottle through the liquid injection pipe;
and step S4, the control system controls the stirring motor of the stirrer to rotate, drives the stirring blades to stir, fully mixes and extracts the sample in the water sample bottle and the extracting agent, and stands for layering to obtain water and extract liquor.
Step S5, the control system controls the injection pump to pump the extraction liquid and the water into the separation container, opens the water outlet to discharge a large amount of water at the bottom of the liquid, and leaves a small amount of water and the extraction liquid;
step S6, the control system controls the injection pump to pump the extraction liquid, and the extraction liquid flows through the magnesium silicate adsorption column through the flow path to a cuvette of the ultraviolet spectrophotometer;
and step S7, operating the ultraviolet spectrophotometer to measure the absorbance of the extraction solution, and calculating the concentration value of the petroleum in the water sample according to a formula by taking the absorbance and the concentration of the standard solution as the reference.
The extractor for measuring oil, the full-automatic ultraviolet oil measuring device and the oil measuring method thereof have the beneficial effects that:
1. the extractor for measuring oil has the beneficial effects that:
according to the invention, the liquid injection pipe and the liquid suction pipe are arranged on the same base, so that a worker can conveniently place the base on the opening of a water sample bottle, the liquid extraction liquid is injected into the water sample bottle through the liquid injection pipe on the base, the extracted liquid extraction liquid in the water sample bottle is extracted through the liquid suction pipe on the base, the extraction of the oil in the water sample is facilitated, and the subsequent detection of the oil content in the water sample is facilitated.
Further, through set up the agitator on the base, can make things convenient for the staff with extract and water sample misce bene, in addition, adopt (mixing) shaft cavity setting, the confession liquid suction pipe is worn to establish, make stirring vane can encircle the periphery of locating the liquid suction pipe and stir, especially can be applicable to the sampling instrument of water sample bottle this type small bore, when satisfying stirring function in less capacity spatial dimension, can prevent effectively that the liquid suction pipe from causing the interference to the rotation of (mixing) shaft, avoid the liquid suction pipe to produce the interference to stirring vane's rotation, whole device's portability has further been improved.
Further, still be equipped with the distancer on the base, can carry out real-time measurement to the volume of water sample through the distancer, save the artifical step of measuring the water sample volume with the graduated flask, guarantee follow-up aquatic oil content detection's convenience, promote work efficiency.
Further, one side that the base is close to water appearance bottle has the flange that suits with the bottleneck shape of water appearance bottle, will annotate liquid pipe, liquid suction pipe, (mixing) shaft, distancer and all wear to establish on the flange, during actual operation, only need aim at water sample bottleneck adaptation with the flange and insert, later can carry out follow-up operation, has injectd the action scope of operation, has improved the integrated level of whole device, portable.
Furthermore, the sealing ring is arranged on the periphery of the flange in a surrounding mode, so that the base and the water sample bottle are temporarily sealed, the overflow of water sample turbulence in the stirring process is avoided, in addition, the anti-blocking groove is formed in the liquid pumping pipe, the blockage of the bottom of the water sample bottle on the end portion of the liquid pumping pipe can be prevented, and the normal use of the liquid pumping pipe is guaranteed.
2. The full-automatic ultraviolet oil measuring device and the oil measuring method thereof have the beneficial effects that:
the invention correspondingly connects the extractor for oil measurement, the separation container, the ultraviolet spectrophotometer and the extractant holding container through a plurality of connecting ports of the solution transfer device to form an integral flow path, and controls automatic operation through the control system, thereby realizing automatic measurement of the volume of a water sample, automatic addition of the extractant, automatic extraction, automatic separation, automatic transfer, automatic adsorption of animal and vegetable oil, automatic ultraviolet measurement, automatic calculation of the oil content in water and formation of a test report.
Furthermore, the oil detection extractor, the solution transfer device, the separation container, the ultraviolet spectrophotometer, the extractant containing container and the control system are integrally placed in the draw-bar box, so that the device is integrally portable, and the problem of low efficiency caused by the fact that the device cannot be used for on-site water quality detection due to inconvenient carrying can be well solved by matching with an automatic detection method.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
FIG. 1 is a sectional view of an extractor for measuring oil according to the present invention in one embodiment.
FIG. 2 is a schematic view showing the connection relationship between the liquid extracting tube and the stirring shaft in the first embodiment.
FIG. 3 is a schematic view for showing the structure of the anti-blocking groove in the first embodiment.
Fig. 4 is a schematic structural diagram of a full-automatic ultraviolet oil measurement device according to a second embodiment of the present invention.
FIG. 5 is a schematic flow chart showing the steps of the oil measuring method of the present invention in example III.
Reference numerals:
1-water sample bottle; 10-a solution transfer device; 11-a multi-way valve; 12-a central interface; 13-a syringe pump; 2-an extraction device; 20-a separation vessel; 21-a base; 211 — a first connection port; 212-a second connection port; 22-a flange; 222-a sealing ring; 23-a stirring assembly; 231-a stirring motor; 232-stirring shaft; 233-stirring blades; 24-a liquid extracting pipe; 241-anti-blocking groove; 25-liquid injection pipe; 26-a range finder; 30-ultraviolet spectrophotometer; 40-flow path; 50-magnesium silicate adsorption column; 60-an extractant holding container.
Detailed Description
The present invention is further described with reference to the accompanying drawings, and the following examples are only for clearly illustrating the technical solutions of the present invention, and should not be taken as limiting the scope of the present invention.
Example one
Referring to fig. 1 to 3, the present invention provides an extractor for oil measurement, including a water sample bottle 1 and an extraction device 2, wherein the extraction device 2 is used for matching with the water sample bottle 1, the upper part and the lower part of the water sample bottle 1 have the same width, and a wide-mouth bottle is generally adopted, so that the volume inside the water sample bottle 1 is in direct proportion to the height L of the water sample bottle 1.
Wherein, the extraction device 2 comprises a base 21;
the stirrer 23, a motor 231 of the stirrer 23 is arranged on the base 21, a stirring shaft 232 of the stirrer 23 rotates on the base 21, stirring blades 233 are annularly arranged on the stirring shaft 232, and the stirring shaft 232 is a hollow pipe;
annotate liquid pipe 25 and liquid suction pipe 24, annotate liquid pipe 25 and liquid suction pipe 24 and all locate on base 21, liquid suction pipe 24 wears to locate in (mixing) shaft 232.
In a preferred embodiment of the present invention, a flange 22 is provided on a side of the base 21 close to the water sample bottle 1, an outer edge of the flange 22 is adapted to a shape of a mouth of the water sample bottle 1, in this embodiment, the flange 22 is provided in a circular sealing plug shape, and the flange 22 and the base 21 are integrally formed. The flange 22 is insertable into and engageable with the mouth of the water sample bottle 1. The flange 22 further comprises a sealing ring 222 arranged around the periphery of the flange, so that the mouth of the water sample bottle 1 can be tightly fitted with the base 21, a temporary sealing effect is achieved, and overflow of water sample turbulence in the stirring process is avoided.
In another embodiment of the present invention, the flange 22 may also be provided as a cap that mates with the mouth of the water sampling bottle 1.
With continued reference to fig. 1, in a preferred embodiment of the present invention, the base 21 has a receiving cavity;
the cavity wall of the accommodating cavity is provided with at least one fixing lug, the middle part of the fixing lug is provided with a hole and a bearing, and the stirring shaft 232 penetrates through the bearing;
the stirring shaft 232 is arranged outside the motor 231 and is in transmission with the output shaft of the motor 231 through a belt, or,
the stirring shaft 232 passes through the motor 231 and rotates coaxially with the rotor of the motor 231 (not shown). Specifically, the stirring shaft 232 is disposed through the flange 22 and perpendicular to the end surface of the flange 22. One end of (mixing) shaft 232 is located inside base 21, it is fixed through an at least fixed ear, adopt two fixed ears in this embodiment, fixed ear is equipped with the bearing, thereby (mixing) shaft 232 passes the bearing and realizes rotating in base 21, the output that passes through belt drive and agitator motor 231 of (mixing) shaft 232 that is located between two fixed ears is connected, the other end of (mixing) shaft 232 extends to the base 21 outside, or, agitator motor 231 is directly passed to the one end of (mixing) shaft 232, and as agitator motor 231's rotor, the other end of (mixing) shaft 232 extends to the outside of base 21 equally, the fixing to (mixing) shaft 232 has been saved, the overall device has further been simplified.
Continuing to refer to fig. 1, the outside one end that (mixing) shaft 232 is located base 21 is fixed with stirring vane 233, and is preferred, and stirring vane 233 adopts impulse type blade, can adapt to the demand of different water samples, and agitator motor 231 can drive stirring vane 233 through (mixing) shaft 232 and rotate to stir the water sample in water appearance bottle 1.
Referring to fig. 2, the stirring shaft 232 is hollow, and the central axis of the stirring blade 233 is also hollow. The liquid extracting pipe 24 penetrates through the inside of the stirring shaft 232, one end of the liquid extracting pipe 24 is located inside the base 21 and fixed on the base 21, the first connecting port 211 connected with the liquid extracting pipe 24 is fixed on the side wall of the base 21, and the first connecting port 211 can be connected with a feeding port of the detector so as to conveniently extract a water sample in the water sample bottle 1.
Referring to fig. 2 and 3, the other end of the liquid pumping tube 24 penetrates out from the end of the stirring shaft 232 connected with the stirring blade 233, and the end of the liquid pumping tube 24 is provided with an anti-blocking groove 241, when the water sample bottle 1 contains impurities, and after the end of the liquid pumping tube 24 is blocked by the impurities, the water sample liquid can still enter the liquid pumping tube 24 through the anti-blocking groove 241, so as to ensure the normal operation of the extractor, or the end of the liquid pumping tube 24 can be directly provided with a chute, so that the blockage caused by the bottom contact of the bottom of the liquid pumping tube 24 is effectively avoided.
Referring to FIG. 2, the base 21 is further provided with a pouring spout 25, one end of the pouring spout 25 is positioned inside the base 21, and a second connection port 212 connected to the pouring spout 25 is fixed to the base 21. The other end of the liquid injection pipe 25 penetrates the sealing plug and extends to the outside of the base 21, and when the flange 22 is matched with the water sample bottle 1, the liquid injection pipe 25 can extend into the water sample bottle 1.
The staff can add the extractant to water appearance bottle 1 through annotating liquid pipe 25 to accomplish the extraction of oil in the water appearance.
Referring to fig. 2, still seted up the exploration hole on the flange 22 terminal surface, be provided with distancer 26 in the exploration hole to realize with base 21's fixed, the preferred, distancer 26 adopts ultrasonic ranging appearance, and when the sealing plug was in coordination with water sample bottle 1, distancer 26 can detect the liquid level height in water sample bottle 1 in real time automatic, helps the follow-up water sample volume to calculate, promotes work efficiency.
In this embodiment, the implementation principle of the portable multifunctional oil extractor is as follows: the water sample is collected using the water sample bottle 1, and the flange 22 is connected to the mouth of the water sample bottle 1. Extract is added into the water sample bottle 1 through the liquid injection pipe 25, and the stirring motor 231 is started, so that the water sample and the extract can be fully stirred, and the extraction of oil in the water sample can be completed.
Example two
Referring to fig. 1 with reference to fig. 4, a second embodiment of the present invention provides a fully-automatic portable ultraviolet oil measurement device, including but not limited to the first embodiment of the extractor a for oil measurement;
a solution transfer device 10, wherein the solution transfer device 10 is provided with a plurality of connecting ports (not shown), and the liquid injection pipe 25 of the oil measuring extractor a is communicated with the first connecting port of the solution transfer device 10;
a separation container 20, wherein the separation container 20 is a tubular container with a smaller diameter than the water sample bottle 1, the bottom of the separation container 20 is provided with a water outlet (shown by a downward arrow in the figure) which can be opened and closed, the top of the separation container 20 is communicated with a liquid pumping pipe 24 of the oil measuring extractor a and a second connecting port communicated with the solution transferring device 10;
the ultraviolet spectrophotometer 30, the ultraviolet spectrophotometer 30 is communicated with the third connecting port of the solution transferring device through a flow path 40, and a magnesium silicate adsorption column 50 is arranged in the flow path;
the extractant holding container 60 is communicated with the fourth connecting port of the solution transferring device 10 through the extractant holding container 60;
the motor 231 of the oil measuring extractor a and the solution transferring device 10 are automatically operated by a control system (not shown).
Specifically, in the second embodiment, the solution transferring device 10 includes a multi-way valve 11 and an injection pump 13 communicated with a central interface 12 of the multi-way valve 11, the injection pump 13 is controlled by a control system to automatically operate, and a plurality of outlets of the multi-way valve 10 correspond to a plurality of connecting ports.
The extractor a for oil measurement is placed into the water sample bottle 1, the extractant in the extractant holding container 60 is extracted by the injection pump 13 through the multi-way valve 11, the water sample bottle 1 is injected, and the stirring motor 231 is used for fully mixing and extracting the water sample to be measured and the extractant. The extractant has a specific gravity smaller than that of water and floats on the water sample bottle 1, but the volume of the obtained extraction liquid is small, and the diameter of the water sample bottle 1 is large, so that the liquid layer of the extraction liquid is small in height and cannot be accurately separated from the water. A large amount of water in the water sample bottle 1 is pumped into the separation container 20 by the syringe pump 13 and is discharged through a water outlet at the bottom of the separation container 20, and the extraction liquid and a small amount of water are remained in the separation container 20, and the liquid layer height of the extraction liquid is obviously higher than that of the extraction liquid in the water sample bottle 1 (the shaded part in the separation container 20 in fig. 4) due to the fact that the separation container 20 is a cylindrical container with a smaller diameter than that of the water sample bottle 1, and accurate pumping is facilitated. The layered extraction solution is pumped by a syringe pump 13 through a multi-way valve 11, pushed through a magnesium silicate adsorption column 50, and then is measured in a cuvette (not shown) of an ultraviolet spectrophotometer 30, and the concentration of petroleum in water can be calculated because the absorbance is in direct proportion to the concentration.
In this embodiment, the syringe pump 13 is an automatic syringe with a motor for removing reagents and transferring extraction solution.
With continued reference to fig. 4, a syringe pump 13 is connected to the central port of the multi-way valve 11 and can draw in and push out the reagents or solutions, the direction of drawing in and pushing out is controlled by the multi-way valve 11, and the multi-way valve 11 can be replaced by a plurality of single-way or three-way solenoid valves, which are used as a guide for the transfer of the reagents and extraction solutions between the water sample bottle and the uv spectrophotometer. Meanwhile, a plurality of interfaces of the multi-way valve 11 are simultaneously communicated with the water sample bottle 1, the extractant holding container 60, the cuvette of the ultraviolet spectrophotometer 30, the standard sample bottle or the waste liquid bottle, etc.
In a preferred embodiment, the whole apparatus further includes a draw-bar box (not shown), the extractor a for oil measurement, the solution transfer device 10, the separation container 20, the uv spectrophotometer 30, the extractant holding container 60 and the control system are integrally placed in the draw-bar box, specifically, the draw-bar box can be made of common plastic nylon materials, the structure inside the draw-bar box is adapted according to the structure, all the components in the oil measurement device can be integrated, and the draw-bar box is externally provided with universal wheels or other transportation structures, so that the draw-bar box is convenient to carry.
EXAMPLE III
With continuing reference to fig. 1 to fig. 4 and with reference to fig. 5, the present invention further provides an oil measuring method, including the following steps:
s1: providing a full-automatic ultraviolet oil measuring device;
s2: providing a water sample bottle 1 and sampling;
s3: placing the extractor a for oil measurement in the water sample bottle 1, starting a control system, controlling the injection pump 13 to automatically extract a certain volume of extractant from the extractant containing container 60 through a fourth connecting port of the multi-way valve 10 by the control system, and injecting the extractant into the water sample bottle 1 through the liquid injection pipe 25;
s4: the control system controls the stirring motor 231 of the stirrer to rotate, drives the stirring blades 233 to stir, fully mixes and extracts the sample in the water sample bottle 1 and the extracting agent, and stands for layering to obtain water and extract liquor.
S5: the control system controls the injection pump 13 to pump all the extraction liquid and the water into the separation container 20, and opens the water outlet to discharge a large amount of water at the bottom of the liquid, and a small amount of water and the extraction liquid are left;
s6: the control system controls the injection pump 13 to pump the extraction liquid, and the extraction liquid flows through the magnesium silicate adsorption column 50 to the cuvette of the ultraviolet spectrophotometer 30 through the flow path 40;
s7: and operating the ultraviolet spectrophotometer 30, measuring the absorbance of the extraction solution, and calculating the concentration value of the petroleum in the water sample according to a formula by taking the absorbance and the concentration of the standard solution as the reference.
Therefore, according to the extractor for measuring oil provided by the invention, the liquid injection pipe 25 and the liquid extraction pipe 24 are arranged on the same base 21, so that a worker can conveniently place the base 21 on the water sample bottle opening 1, the extraction liquid is injected into the water sample bottle 1 through the liquid injection pipe 25 on the base 1, the extraction liquid extracted from the water sample bottle 1 is extracted through the liquid extraction pipe 24 on the base 21, the extraction of oil in the water sample is facilitated, the subsequent detection of the oil content in the water sample is facilitated, the device is compact and portable, and the operation is convenient.
Further, through set up agitator 23 on base 21, can make things convenient for the staff with extract and water sample misce bene, in addition, adopt (mixing) shaft 232 cavity setting, liquid supply pipe 24 wears to establish, make stirring vane 233 can encircle locate the periphery of liquid suction pipe 24 and stir, especially can be applicable to the sampling instrument of this type of small bore of water sample bottle 1, when satisfying stirring function in less capacity spatial dimension, can prevent effectively that liquid suction pipe 24 from causing the interference to the rotation of (mixing) shaft 232, avoid liquid suction pipe 24 to produce the interference to stirring vane 233's rotation, the portability of whole device has further been improved.
Further, still be equipped with distancer 26 on the base 21, can carry out real-time measurement to the volume of water sample through distancer 26, guarantee follow-up aquatic oil content detection's convenience, promote work efficiency.
Further, one side that base 21 is close to water appearance bottle 1 has the flange 22 that suits with the bottleneck shape of water appearance bottle 1, will annotate liquid pipe 25, liquid suction pipe 24, (mixing) shaft 232, distancer 26 and all wear to establish on the flange, during actual operation, only need insert the adaptation with flange 22 alignment water sample bottleneck, later can carry out follow-up operation, has injectd the action scope of operation, has improved the integrated level of whole device, portable.
Further, the outer periphery of the flange 22 is annularly provided with the sealing ring 222, so that the base 21 and the water sample bottle 1 can be temporarily sealed, the overflow of water sample turbulence in the stirring process is avoided, in addition, the anti-blocking groove 242 is formed in the liquid pumping pipe 24, the blockage of the bottom of the water sample bottle 1 on the end part of the liquid pumping pipe 24 can be prevented, and the normal use of the liquid pumping pipe 24 is ensured.
In addition, the invention adopts the current standard HJ970-2018, designs a full-automatic ultraviolet oil measuring device provided with the oil measuring extractor, correspondingly connects the extractor a for oil measurement, the separation container 20, the ultraviolet spectrophotometer 20 and the extractant holding container 60 through a plurality of connectors of the solution transfer device 10 to form an integral flow path, and controls automatic operation through a control system, thereby realizing automatic measurement of water sample volume, automatic reagent addition, automatic extraction, automatic separation, automatic transfer, automatic adsorption of animal and vegetable oil, automatic ultraviolet measurement, automatic calculation of oil content in water and formation of a test report, realizing full automation of the whole measurement process, arranging the whole device in a draw-bar box, being convenient to carry and being capable of timely detecting water quality on site.
In addition, the automatic oil measuring method of the invention omits the fussy manual operation steps in the existing water quality detection, reduces the probability of contacting harmful reagents for operators, reduces the errors of manual operation, and improves the detection efficiency, the measurement precision and the safety.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. The utility model provides an extractor for survey oil for supporting water sample bottle uses which characterized in that includes:
a base;
the motor of the stirrer is arranged on the base, a stirring shaft of the stirrer rotates on the base, stirring blades are arranged on the stirring shaft, and the stirring shaft is a hollow tube;
annotate liquid pipe and liquid suction pipe, annotate the liquid pipe with liquid suction pipe all locates on the base, liquid suction pipe wears to locate in the (mixing) shaft.
2. The extractor for measuring oil of claim 1,
the base is provided with an accommodating cavity;
the cavity wall of the accommodating cavity is provided with at least one fixing lug, the middle part of the fixing lug is provided with an opening and a bearing, and the stirring shaft penetrates through the bearing;
the stirring shaft is arranged on the outer side of the motor and is in transmission with an output shaft of the motor through a belt, or,
the stirring shaft penetrates through the motor and rotates coaxially with a rotor of the motor.
3. The extractor for measuring oil of claim 1, further comprising a distance meter disposed on a side of the base adjacent to the water sample bottle.
4. The extractor for measuring oil according to claims 2 and 3,
a flange is arranged on one side of the base close to the water sample bottle, and the outer edge of the flange is matched with the shape of the bottle mouth of the water sample bottle;
the liquid injection pipe, the liquid suction pipe, the stirring shaft and the distance meter are all arranged on the flange in a penetrating mode.
5. The extractor for measuring oil of claim 4, wherein the outer circumference of the flange is provided with a sealing ring.
6. The extractor for measuring oil of claim 1, wherein an anti-blocking groove is formed at the end of the liquid extracting pipe.
7. The utility model provides a full-automatic ultraviolet surveys oily device which characterized in that includes:
the extractor for measuring oil according to any one of claims 1 to 6;
the liquid injection pipe of the extractor for oil measurement is communicated with the first connecting port of the solution transfer device;
the separation container is a tubular container with a smaller diameter than the water sample bottle, the bottom of the separation container is provided with a water outlet which can be opened and closed, and the top of the separation container is communicated with the liquid pumping pipe of the extractor for measuring oil and a second connecting port communicated with the solution transfer device;
the ultraviolet spectrophotometer is communicated with the third connecting port of the solution transferring device through a flow path, and a magnesium silicate adsorption column is arranged in the flow path;
the extractant containing container is communicated with the fourth connecting port of the solution transferring device;
the stirring motor of the extractor for measuring oil and the solution transfer device are controlled by a control system to automatically operate.
8. The full-automatic oil measuring device according to claim 7, wherein the solution transferring device comprises a multi-way valve and an injection pump communicated with a central interface of the multi-way valve, the injection pump is controlled by the control system to automatically operate, and a plurality of outlets of the multi-way valve correspond to the plurality of connecting ports.
9. The fully automatic oil measuring device of claim 7, further comprising a draw-bar box, wherein the extractor for measuring oil, the solution transferring device, the separation container, the ultraviolet spectrophotometer, the extractant holding container and the control system are integrally disposed in the draw-bar box.
10. The oil measuring method is characterized by comprising the following steps:
step S1, providing the full-automatic ultraviolet oil testing device as claimed in any one of claims 7 to 9;
step S2, providing a water sample bottle and sampling;
step S3, placing the extractor for oil measurement in the water sample bottle, starting the control system, controlling the injection pump to automatically extract a certain volume of extractant from the extractant containing container through the fourth connecting port of the multi-way valve by the control system, and injecting the extractant into the water sample bottle through the liquid injection pipe;
and step S4, the control system controls the stirring motor of the stirrer to rotate, drives the stirring blades to stir, fully mixes and extracts the sample in the water sample bottle and the extracting agent, and stands for layering to obtain water and extract liquor.
Step S5, the control system controls the injection pump to pump the extraction liquid and the water into the separation container, opens the water outlet to discharge a large amount of water at the bottom of the liquid, and leaves a small amount of water and the extraction liquid;
step S6, the control system controls the injection pump to pump the extraction liquid, and the extraction liquid flows through the magnesium silicate adsorption column through the flow path to a cuvette of the ultraviolet spectrophotometer;
and step S7, operating the ultraviolet spectrophotometer to measure the absorbance of the extraction solution, and calculating the concentration value of the petroleum in the water sample according to a formula by taking the absorbance and the concentration of the standard solution as the reference.
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| CN202111361204.4A CN114062292A (en) | 2021-11-17 | 2021-11-17 | Extractor for oil measurement, full-automatic ultraviolet oil measurement device and oil measurement method thereof |
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| CN202111361204.4A CN114062292A (en) | 2021-11-17 | 2021-11-17 | Extractor for oil measurement, full-automatic ultraviolet oil measurement device and oil measurement method thereof |
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