CN109307781B - Full-automatic sample injector with changeable sample position and element analyzer - Google Patents
Full-automatic sample injector with changeable sample position and element analyzer Download PDFInfo
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- CN109307781B CN109307781B CN201811523142.0A CN201811523142A CN109307781B CN 109307781 B CN109307781 B CN 109307781B CN 201811523142 A CN201811523142 A CN 201811523142A CN 109307781 B CN109307781 B CN 109307781B
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- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 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
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
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- Physics & Mathematics (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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a full-automatic sample injector with changeable sample positions, which comprises: the device comprises a tray body, N hole sites, N telescopic rods, a sample running rail, an electromagnetic power system and a rotating shaft; the disc body is used for bearing the electromagnetic power system and the rotating shaft; the N hole sites are distributed to form at least two sample injection rings, and in the working state, all hole sites of one sample injection ring are positioned in the sample running track, and all hole sites of other sample injection rings are positioned on respective sample sites; for each telescopic rod, one end of the telescopic rod is connected with the rotating shaft, the other end of the telescopic rod is fixedly connected with a hole site, and the telescopic rod drives the hole site to rotate when rotating around the rotating shaft; under the action of an electromagnetic power system, the telescopic rod can be extended or contracted, so that the position of the hole site between the sample site and the sample running track is switched. The invention can ensure the 24-hour full-day automatic operation of the element analyzer, meets the timeliness of sample measurement and improves the working efficiency.
Description
Technical Field
The invention relates to the technical field of organic element analysis, in particular to a full-automatic sample injector with changeable sample positions and an element analyzer.
Background
In the land ecological system, soil organic carbon and nitrogen are important components of soil organic matters, are important ties for connecting soil, plants, animals and microorganisms by the ecological system, have important functions for promoting plant growth, improving soil fertility, protecting environment and promoting sustainable development of agricultural environment, and are one of indexes with highest attention in the current soil science research.
The traditional methods for measuring the content of organic carbon and total nitrogen in the soil science are a potassium dichromate volumetric method and a Kjeldahl nitrogen determination method, respectively, and have the advantages of low cost, complex operation, large consumption of manpower and large random error, and are unfavorable for the rapid measurement of a large number of samples. Along with the rapid development of analysis instruments, carbon-nitrogen mode element analyzers are increasingly applied to the measurement of carbon-nitrogen content of soil, the existing element analyzers are limited by sample injection positions (80 hole positions) on a sample injection disc, the continuous automatic operation time is limited, the data output efficiency is limited, and the rapid measurement requirements of mass and easily-changed samples on an instrument line cannot be realized.
Disclosure of Invention
First, the technical problem to be solved
In view of the technical problems, the invention provides a full-automatic sample injector and an element analyzer with changeable sample positions. The invention improves the sampler of the sample, meets the timeliness of sample measurement and provides working efficiency.
(II) technical scheme
According to one aspect of the present invention, there is provided a full-automatic sampler with replaceable sample sites, comprising: the device comprises a tray body, N hole sites, N telescopic rods, a sample running rail, an electromagnetic power system and a rotating shaft; wherein,
the disc body is used for bearing the electromagnetic power system and the rotating shaft;
the N hole sites are distributed to form at least two sample injection rings, and in the working state, all hole sites of one sample injection ring are positioned in the sample running track, and all hole sites of other sample injection rings are positioned on respective sample sites;
for each telescopic rod, one end of the telescopic rod is connected with the rotating shaft, the other end of the telescopic rod is fixedly connected with a hole site, and the telescopic rod drives the hole site to rotate when rotating around the rotating shaft;
under the action of an electromagnetic power system, the telescopic rod can be extended or contracted, so that the position of the hole site between the sample site and the sample running track is switched.
In some embodiments of the present invention, the electromagnetic power system includes 2N electromagnetic coils, each having a current access point, two electromagnetic coils located in the interior cavity of one telescopic rod and disposed opposite each other, an electromagnetic valve controlling the expansion or contraction of the telescopic rod, and a controller controlling the operation of the electromagnetic power system.
In some embodiments of the invention, the telescoping rod comprises an outer rod and an inner rod, the outer rod is connected with the rotating shaft, the outer rod has a cavity, two electromagnetic coils are located in the cavity, one end of the inner rod is sleeved in the cavity, the end of the inner rod is connected with one of the electromagnetic coils, the other end of the inner rod is connected with the hole site, and the inner rod can reciprocate along the cavity.
In some embodiments of the invention, the outer rod further has a rod portion, one end of the rod portion is connected to the rotating shaft, the other end is sleeved in the inner cavity, and the end of the rod portion is connected to another electromagnetic coil.
In some embodiments of the present invention, the N hole sites are arranged to form two sample loops.
According to another aspect of the present invention, there is also provided an elemental analyzer comprising a full-automatic sample injector as described above, each sample loop being located in a sample running track sequentially at different time periods, the hole site in each sample loop being rotated about a rotational axis such that a sample in the hole site enters the elemental analyzer.
In certain embodiments of the invention, the elemental analyzer is run automatically for 24 hours without interruption.
(III) beneficial effects
According to the technical scheme, the full-automatic sample injector and the element analyzer with the replaceable sample positions have the following beneficial effects: according to the invention, through arranging the plurality of sample injection rings, the element analyzer can automatically run for 24 hours all the day, the timeliness of sample measurement is satisfied, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a full-automatic sample injector with replaceable sample positions according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an electromagnetic coil and a telescopic rod according to an embodiment of the present invention.
[ Main element ]
10-a tray body;
20-telescoping rod;
21-a first stage;
22-a second section;
23-connecting part;
30-sample running track;
40-an electromagnetic power system;
50-rotating shaft;
60-electromagnetic coils;
70-hole site.
Detailed Description
The present invention will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.
First embodiment:
in this embodiment, a full-automatic sample injector with replaceable sample positions is provided. As shown in fig. 1, the full-automatic sample injector with replaceable sample positions according to the present invention comprises: the device comprises a disc body 10, N hole sites 70, N telescopic rods 20, a sample running rail 30, an electromagnetic power system 40 and a rotating shaft 50.
The N holes 70 are arranged to form two sample rings, which are divided into a first ring and a second ring, and all the holes are located on the same plane, for example, each sample ring has 80 holes, the black dots in fig. 1 represent the holes which are not shown, the holes 70 are all filled with samples, and when the holes 70 rotate in the sample running track 30, the samples in the holes 70 are sent to the elemental analyzer for elemental analysis. One end of the telescopic rod 20 is connected with the rotating shaft 50, the other end of the telescopic rod is fixedly connected with a hole site 70, and the telescopic rod 20 drives the hole site 70 to rotate when rotating around the rotating shaft 50; under the action of the electromagnetic power system 40, the hole sites 70 are switched between the sample positions and the sample running rails 30, all the hole sites 70 of the first ring are located at the respective sample positions or the sample running rails 30 at the same time, and all the hole sites 70 of the second ring are located at the respective sample positions or the sample running rails 30 at the same time. When the hole sites 70 in the first ring are located in the sample run rail 30, the hole sites 70 of the second ring are located on the respective sample sites; when the hole sites 70 of the second ring are located in the sample run rail 30, the hole sites 70 of the first ring are located on the respective sample sites.
The tray 10 may be a cylindrical structure for carrying the electromagnetic power system 40.
The electromagnetic power system 40 includes 2N electromagnetic coils 60, an electromagnetic valve, and a controller, each 2 electromagnetic coils 60 being located in one telescopic rod 20, the electromagnetic valve controlling the hole site 70 of the first ring or the hole site 70 of the second ring to be simultaneously extended or contracted, the controller controlling the operation of the electromagnetic power system 40.
It should be noted that, the two electromagnetic coils 60 in each telescopic rod 20 are disposed opposite to each other, that is, the axes of the two electromagnetic coils 60 are parallel to each other, and preferably, the axes of the two electromagnetic coils 60 are located on the same straight line.
As shown in fig. 2, the telescopic rod 20 includes a first section 21, a second section 22, and a connection portion 23 connecting the first section 21 and the second section 22, one end of the first section 21 is connected to the rotation shaft 50, the other end is connected to one electromagnetic coil 60, one end of the second section 22 is connected to the other electromagnetic coil 60, the other end is connected to one hole site 70, the two electromagnetic coils 60 are opposite, and each has a current access point, the connection portion 23 is located between the first section 21 and the second section 22, and the second section 22 can reciprocate along the connection portion 23. For example, the connection 23 is a box-like housing in which the two electromagnetic coils 60 are located, the second section 22 being inserted through a hole in the housing.
By changing the direction of the current in the electromagnetic coils 60 to change the poles of the two electromagnetic coils 60, the reciprocating motion of each telescopic rod 20 is achieved by the attraction of the like poles and the opposite poles. For example, in the first state, all the hole sites 70 of the first ring are located in the sample operation rail 30, all the hole sites 70 of the second ring are located on the respective sample positions, in the second state, all the hole sites 70 of the first ring are located in the sample operation rail 30, when the first state is required to be switched to the second state, the controller of the electromagnetic power system 40 changes the current direction in the electromagnetic coils 60, on the one hand, the magnetic poles of the two electromagnetic coils 60 in the telescopic rod 20 connected with the hole sites 70 of the first ring are identical, and at this time, all the telescopic rods 20 connected with the hole sites 70 of the first ring are stretched, so that the hole sites 70 are pushed out of the sample operation rail 30; on the other hand, the poles of the two electromagnetic coils 60 in the telescopic rod 20 to which the hole site 70 of the second ring is connected are repelled, and at this time, all the telescopic rods 20 to which the hole site 70 of the second ring is connected are contracted, thereby drawing the hole site 70 back to the sample running rail 30.
It should be noted that the above is only an exemplary illustration, and the present embodiment is not limited thereto. The number of the sample injection rings formed by the arrangement of the N hole sites can be more than two, the electromagnetic power system 70 is utilized to pull the hole site 70 of one sample injection ring back to the sample running track, and the hole sites 70 of other sample injection rings are all positioned on the respective sample positions. The telescopic rod 20 may have no first section 21, and the connection portion 23 is connected to the rotation shaft of the electromagnetic power system 40, which is not particularly limited as long as the second section 22 can reciprocate.
Through the structure, under the action of the electromagnetic power system 40, the hole site 70 in each sample injection ring is switched between the sample site and the sample running track 30, so that each sample injection ring is located in the sample running track 30 in different time periods in sequence, the hole site 70 in each sample injection ring rotates around the rotating shaft 50, a sample in the hole site 70 enters the element analyzer, and the total sample sites of the sample injection rings can ensure 24-hour full-day automatic running of the element analyzer, thereby meeting the timeliness of sample measurement and improving the working efficiency.
The present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize that the sample positions of the full-automatic sampler and the elemental analyzer can be changed.
It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the elements and methods are not limited to the specific structures, shapes or modes mentioned in the embodiments, and may be simply modified or replaced by those of ordinary skill in the art.
It should be noted that, in the embodiments, directional terms, such as "upper", "lower", "front", "rear", "left", "right", etc., refer to the directions of the drawings only, and are not intended to limit the scope of the present invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.
It should be noted that throughout the appended drawings, like elements are represented by like or similar reference numerals. In the following description, certain specific embodiments are set forth for purposes of illustration only and should not be construed as limiting the invention in any way, but as merely illustrative of embodiments of the invention. Conventional structures or constructions will be omitted when they may cause confusion in understanding the present invention. It should be noted that the shapes and dimensions of the various components in the figures do not reflect the actual sizes and proportions, but merely illustrate the contents of embodiments of the present invention.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (6)
1. A full-automatic sample injector with replaceable sample positions, comprising: the device comprises a disc body (10), N hole sites (70), N telescopic rods (20), a sample running track (30), an electromagnetic power system (40) and a rotating shaft (50); wherein,
the disc body (10) is of a columnar structure and is used for bearing the electromagnetic power system (40) and the rotating shaft (50);
the N hole sites (70) are distributed to form at least two sample injection rings, all the hole sites are positioned on the same plane, and in a working state, all the hole sites (70) of one sample injection ring are positioned in the sample running track (30), and all the hole sites (70) of other sample injection rings are positioned on respective sample positions;
for each telescopic rod (20), one end of the telescopic rod (20) is connected with the rotating shaft (50), the other end of the telescopic rod is fixedly connected with a hole site (70), and the telescopic rod (20) drives the hole site (70) to rotate when rotating around the rotating shaft (50);
under the effect of electromagnetic power system (40), telescopic link (20) can extend or shrink, realizes hole site (70) sample position with the position switch between sample operation track (30), electromagnetic power system (40) are including 2N solenoid (60), solenoid valve and controller, and every solenoid (60) have electric current access point, and every two solenoid (60) are located the inner chamber of telescopic link (20), and the extension or the shrink of telescopic link (20) are controlled to the solenoid valve, and the operation of electromagnetic power system (40) is controlled to the controller, and wherein, two solenoid (60) are relative to set up and the axis is located on same straight line.
2. The full-automatic injector according to claim 1, characterized in that the telescopic rod (20) comprises an outer rod and an inner rod, the outer rod is connected with the rotating shaft (50), the outer rod is provided with an inner cavity, two electromagnetic coils (60) are positioned in the inner cavity, one end of the inner rod is sleeved in the inner cavity, the end of the inner rod is connected with one of the electromagnetic coils (60), the other end of the inner rod is connected with a hole site (70), and the inner rod can reciprocate along the inner cavity.
3. The full-automatic sample injector according to claim 2, characterized in that the outer rod further has a rod portion, one end of which is connected to the rotation shaft (50), the other end of which is sleeved in the inner cavity, and the end of which is connected to another electromagnetic coil (60).
4. The full-automatic sample injector according to claim 1, characterized in that the N hole sites (70) are arranged to form two sample loops.
5. An elemental analyzer comprising a full-automatic sample injector according to any one of claims 1-4, each sample loop being located in the sample run (30) sequentially at different time periods, the aperture (70) in each sample loop being rotated about the rotation axis (50) such that a sample in the aperture (70) enters the elemental analyzer.
6. The elemental analyzer of claim 5, wherein the elemental analyzer is operated automatically for 24 hours without interruption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523142.0A CN109307781B (en) | 2018-12-13 | 2018-12-13 | Full-automatic sample injector with changeable sample position and element analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523142.0A CN109307781B (en) | 2018-12-13 | 2018-12-13 | Full-automatic sample injector with changeable sample position and element analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109307781A CN109307781A (en) | 2019-02-05 |
| CN109307781B true CN109307781B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811523142.0A Active CN109307781B (en) | 2018-12-13 | 2018-12-13 | Full-automatic sample injector with changeable sample position and element analyzer |
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| CN209280735U (en) * | 2018-12-13 | 2019-08-20 | 中国科学院西北高原生物研究所 | Adjustable full-automatic sample injector, the elemental analyser for varying position |
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2018
- 2018-12-13 CN CN201811523142.0A patent/CN109307781B/en active Active
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| CN201751665U (en) * | 2010-07-08 | 2011-02-23 | 西北工业大学 | Multi-head sample support for electromagnetic suspension |
| CN202093003U (en) * | 2011-06-21 | 2011-12-28 | 青岛盛瀚色谱技术有限公司 | Ion chromatography sample introduction device |
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| CN109307781A (en) | 2019-02-05 |
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