CN113533623A - Sample feeder of element analyzer - Google Patents
Sample feeder of element analyzer Download PDFInfo
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- CN113533623A CN113533623A CN202110954479.2A CN202110954479A CN113533623A CN 113533623 A CN113533623 A CN 113533623A CN 202110954479 A CN202110954479 A CN 202110954479A CN 113533623 A CN113533623 A CN 113533623A
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- sample
- hole
- seat
- feeding
- feeder
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- 238000003860 storage Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sample feeder of an element analyzer, which comprises: reciprocating drive device, sample presentation pole and sample presentation seat are equipped with the sample storage hole on the sample presentation pole, and sample presentation seat upper portion is equipped with into the appearance hole, and sample presentation seat bottom is equipped with out the appearance hole, and it is used for being connected with the heating furnace to go out the appearance hole, is equipped with the guiding hole in the sample presentation seat, and sample presentation pole axial sliding connects in the guiding hole, and the rear end and the reciprocating drive device of sample presentation pole are connected. When sending a kind, the sample hole and advance the sample hole intercommunication, the sample falls into in the sample hole from advancing the sample hole, then reciprocal drive arrangement drive send a kind pole antedisplacement in the guiding hole to make sample hole and play appearance hole intercommunication, the sample enters into the heating furnace from sample hole and play appearance hole in proper order this moment and is decomposed by the burning, at last rethread reciprocal drive arrangement will send a kind pole after-shift, so that sample hole and advance the appearance hole intercommunication, so that send a kind next time. Compared with the traditional sample feeder, the sample feeder has the advantages of stable and reliable feeding, simple structure, low manufacturing and using cost and the like.
Description
Technical Field
The invention relates to the technical field of detection instruments, in particular to a sample feeder of an element analyzer.
Background
The element analyzer is a device for measuring the content of each element in gas by burning a sample so as to determine the content of each element in the sample.
The sample feeder of the element analyzer is used for conveying samples to the heating furnace, and the existing sample feeder comprises three stations, a sample receiving position, a purging position and a furnace entering position, so that the structure of the sample feeder is complex, the cost is high, and the sample feeder is inconvenient to maintain.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a sample feeder for an elemental analyzer, which simplifies the structure of the sample feeder to facilitate maintenance and reduce cost while ensuring stable and reliable operation.
In order to achieve the purpose, the invention provides the following technical scheme:
a sample feeder for an elemental analyzer, comprising: the sample feeding device comprises a reciprocating driving device, a sample feeding rod and a sample feeding seat, wherein a sample storage hole is formed in the sample feeding rod, a sample inlet hole is formed in the upper portion of the sample feeding seat, a sample outlet hole is formed in the bottom of the sample feeding seat and used for being connected with a heating furnace, a guide hole is formed in the sample feeding seat, the sample feeding rod is axially and slidably connected into the guide hole, the reciprocating driving device is used for driving the sample feeding rod to move in the guide hole, when the sample storage hole is communicated with the sample inlet hole, a sample falls into the sample storage hole from the sample inlet hole, and when the sample storage hole is communicated with the sample outlet hole, the sample sequentially enters the heating furnace from the sample storage hole and the sample outlet hole and is combusted and decomposed.
Preferably, a first air inlet hole and a second air inlet hole are arranged on the side wall of the sample sending seat, and the first air inlet hole is used for conveying inert gas into the sample storage hole when the sample inlet hole is communicated with the sample storage hole; the second air inlet hole is communicated with the sample outlet hole and is used for loading inert gas or oxygen.
Preferably, the front end of the sample sending seat is provided with an access hole, and a cover plate is detachably connected to the access hole.
Preferably, the rear end of the sample feeding seat is provided with a guide device, and the rear end of the sample feeding rod penetrates out of the guide device to be connected with the reciprocating driving device.
Preferably, the guide means is a linear bearing.
Preferably, the periphery of the sample feeding rod is provided with two first sealing rings which are positioned at the front side and the rear side of the sample storage hole.
Preferably, the periphery of the front end of the sample feeding rod is provided with a second sealing ring, and the second sealing ring is positioned on the front side of the sample outlet hole.
Preferably, the sample outlet is connected with a transition seat, a through hole is formed in the middle of the transition seat, the transition seat is used for being connected with a combustion tube of the combustion furnace, and the combustion tube is communicated with the sample outlet through the through hole.
Preferably, a blanking pipe is connected to the sample inlet, an inlet of the blanking pipe is used for being connected with a sample disc, and a blanking port communicated with the blanking pipe is arranged on the sample disc.
Preferably, still including control the slewer of sample dish horizontal rotation, the circumferencial direction of sample dish is equipped with a plurality ofly the blanking mouth, the blanking mouth with the axis of sample dish is parallel to each other.
Compared with the prior art, the technical scheme has the following advantages:
according to the sample feeder of the elemental analyzer, during sample feeding, the sample storage hole is communicated with the sample inlet, a sample falls into the sample storage hole from the sample inlet, then the reciprocating driving device drives the sample feeding rod to move forwards in the guide hole so as to enable the sample storage hole to be communicated with the sample outlet, at the moment, the sample enters the heating furnace from the sample storage hole and the sample outlet in sequence to be combusted and decomposed, and finally the sample feeding rod is moved backwards through the reciprocating driving device so as to enable the sample storage hole to be communicated with the sample inlet, so that the sample can be fed next time. Compared with the traditional sample feeder, the sample feeder has the advantages of stable and reliable feeding, simple structure, low manufacturing and using cost and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a cross-sectional view of a sample inlet and a sample storage port of a sample injector of an elemental analyzer according to one embodiment of the present invention;
FIG. 2 is a cross-sectional view of the sample well in communication with the sample outlet;
FIG. 3 is a schematic view of a sample feeding rod;
FIG. 4 is a schematic structural view of a sample feeding seat;
FIG. 5 is a cross-sectional view of a sample inlet and a first air inlet on a sample transport base;
FIG. 6 is a cross-sectional view of the sample outlet and the second air inlet on the sample feeding base.
The reference numbers are as follows:
the device comprises a reciprocating driving device 1, a sample feeding rod 2, a linear bearing 3, a sample feeding seat 4, a first air inlet hole 5, a sample storage hole 6, a blanking pipe 7, a sample plate 8, a sample inlet hole 9, a sealing ring 10, a cover plate 11, a sample outlet hole 12, a second air inlet hole 13, a combustion pipe 14, a heating furnace 15, a sample 16, a transition seat 17, a clamping groove 18 and a guide hole 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, fig. 1 is a cross-sectional view illustrating a sample inlet and a sample storage of a sample feeder of an elemental analyzer according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the sample well in communication with the sample outlet; FIG. 3 is a schematic view of a sample feeding rod; FIG. 4 is a schematic structural view of a sample feeding seat; FIG. 5 is a cross-sectional view of a sample inlet and a first air inlet on a sample transport base; FIG. 6 is a cross-sectional view of the sample outlet and the second air inlet on the sample feeding base.
The embodiment of the invention provides a sample feeder of an element analyzer, which comprises: reciprocating drive device 1, send appearance pole 2 and send appearance seat 4, wherein reciprocating drive device 1 can be the cylinder, hydro-cylinder or linear electric motor etc. can provide linear displacement's power device, send to be equipped with sample hole 6 on appearance pole 2, preferably set up the sample hole 6 that extends along its diameter direction at the middle part of sending appearance pole 2, send appearance seat 4 upper portion to be equipped with into appearance hole 9, send appearance seat 4 bottom to be equipped with out appearance hole 12, it is used for being connected with heating furnace 15 to go out appearance hole 12, be equipped with guiding hole 19 in sending appearance seat 4, send appearance pole 2 axial sliding connection in guiding hole 19, send the rear end and the reciprocating drive device 1 of appearance pole 2 to be connected. When a sample is sent, the sample storage hole 6 is communicated with the sample inlet hole 9, a sample 16 falls into the sample storage hole 6 from the sample inlet hole 9, then the reciprocating driving device 1 drives the sample sending rod 2 to move forwards in the guide hole 19 so as to enable the sample storage hole 6 to be communicated with the sample outlet hole 12, at the moment, the sample 16 enters the heating furnace 15 from the sample storage hole 6 and the sample outlet hole 12 in sequence to be combusted and decomposed, and finally the sample sending rod 2 moves backwards through the reciprocating driving device 1 so as to enable the sample storage hole 6 to be communicated with the sample inlet hole 9, so that the sample is sent next time. Compared with the traditional sample feeder, the sample feeder has the advantages of stable and reliable feeding, simple structure, low manufacturing and using cost and the like.
When the sample inlet hole 9 is communicated with the sample storage hole 6, namely the sample storage hole 6 is positioned right below the sample inlet hole 9, a sample 16 enters the sample storage hole 6, and meanwhile, inert gas, such as helium, is conveyed into the sample storage hole 6 through the first gas inlet hole 5, so that air in the sample storage hole 6 can be extruded out of the sample inlet hole 9 due to the fact that the density of the inert gas is low; the second inlet hole 13 is connected to the outlet hole 12 for loading inert gas, and when the sample 16 reaches the first few seconds, it can be switched to oxygen until the sample 16 is fully combusted, and then switched to inert gas.
In order to facilitate the maintenance of the interior of the sample sending seat 4, the front end of the sample sending seat 4 is provided with an access hole, the access hole is detachably connected with a cover plate 11, for example, the cover plate 11 can be fixed at the front end of the sample sending seat 4 through a screw, and when the maintenance is needed, the cover plate 11 is detached.
In order to facilitate the movement of the sample feeding rod 2 in the guide hole 19, the rear end of the sample feeding seat 4 is provided with a guide device, preferably a linear bearing 3, and the rear end of the sample feeding rod 2 penetrates through the guide device and is connected with the reciprocating driving device 1.
Further, send appearance pole 2 to be equipped with sealing washer 10, distribute in the periphery of middle part and front end, for the convenience of distinguishing, mark as first sealing washer 10 and second sealing washer 10 respectively, send appearance pole 2 still to be equipped with the draw-in groove 18 that is used for holding sealing washer 10, send the periphery of appearance pole 2 to be equipped with two first sealing washers 10 that are located sample hole 6 front and back both sides, send the front end periphery of appearance pole 2 to be equipped with second sealing washer 10, second sealing washer 10 is located the front side of appearance hole 12. When connecing the appearance, first sealing washer 10 is located the front and back both sides of advancing appearance hole 9, when letting in inert gas, can avoid gaseous from sending the clearance between appearance pole 2 and the guiding hole 19 to leak, also can avoid inert gas and oxygen to appear leaking the problem through second sealing washer 10, and then guarantee gas transport's stability, in addition also be a protection to sending appearance pole 2 and guiding hole 19 through first sealing washer 10 and second sealing washer 10, can reduce wearing and tearing between them, and then improve life.
In order to facilitate the connection of the transition seat 17 with the combustion furnace, the sample outlet 12 is connected with the transition seat 17, a through hole is formed in the middle of the transition seat 17, the transition seat 17 can be connected with the combustion tube 14 of the combustion furnace 15, for example, the lower part of the transition seat 17 can be sleeved on the upper end of the combustion tube 14, and the combustion tube 14 is communicated with the sample outlet 12 through the through hole.
Regarding the structural improvement of the sample inlet hole 9, the sample inlet hole 9 is connected with the blanking pipe 7, for example, the lower end of the blanking pipe 7 is vertically inserted into the sample inlet hole 9, the sample inlet hole 9 can be protected through the blanking pipe 7, so as to prevent the sample 16 from scratching the sample feeding seat 4, and further prolong the service life, the inlet of the blanking pipe 7 is used for being connected with the sample plate 8, and the sample plate 8 is provided with a blanking port communicated with the blanking pipe 7.
Further, the automatic sample receiving device comprises a rotating device for controlling the sample disc 8 to rotate horizontally, a plurality of blanking ports are formed in the circumferential direction of the sample disc 8 and are parallel to the axis of the sample disc 8, and when the rotating device drives the rotating disc to form a certain angle, so that one of the blanking ports corresponds to the blanking pipe 7, a sample 16 can fall into the blanking pipe 7, and the automatic sample receiving level is realized.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The sample feeder of the elemental analyzer provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A sample feeder for an elemental analyzer, comprising: the sample feeding device comprises a reciprocating driving device, a sample feeding rod and a sample feeding seat, wherein a sample storage hole is formed in the sample feeding rod, a sample inlet hole is formed in the upper portion of the sample feeding seat, a sample outlet hole is formed in the bottom of the sample feeding seat and used for being connected with a heating furnace, a guide hole is formed in the sample feeding seat, the sample feeding rod is axially and slidably connected into the guide hole, the reciprocating driving device is used for driving the sample feeding rod to move in the guide hole, when the sample storage hole is communicated with the sample inlet hole, a sample falls into the sample storage hole from the sample inlet hole, and when the sample storage hole is communicated with the sample outlet hole, the sample sequentially enters the heating furnace from the sample storage hole and the sample outlet hole and is combusted and decomposed.
2. The sample feeder according to claim 1, wherein a first air inlet hole and a second air inlet hole are arranged on the side wall of the sample feeding seat, and the first air inlet hole is used for conveying inert gas into the sample storage hole when the sample feeding hole is communicated with the sample storage hole; the second air inlet hole is communicated with the sample outlet hole and is used for loading inert gas or oxygen.
3. The sample presentation device according to claim 1, wherein the front end of the sample presentation base is provided with an access opening, and a cover plate is detachably connected to the access opening.
4. The sample feeder according to claim 3, characterized in that the rear end of the sample feeding seat is provided with a guide device, and the rear end of the sample feeding rod penetrates out of the guide device and is connected with the reciprocating drive device.
5. The sample injector of claim 4, in which the guide is a linear bearing.
6. The sample feeder according to claim 1, wherein the sample feeding rod is provided with two first sealing rings at the front side and the rear side of the sample storage hole on the periphery.
7. The sample feeder according to claim 6, wherein the outer periphery of the front end of the sample feeding rod is provided with a second sealing ring, and the second sealing ring is positioned on the front side of the sample outlet hole.
8. The sample feeder according to claim 1, wherein a transition seat is connected to the sample outlet, a through hole is formed in the middle of the transition seat, the transition seat is used for being connected with a combustion tube of the combustion furnace, and the combustion tube is communicated with the sample outlet through the through hole.
9. The sample feeder according to any one of claims 1 to 8, wherein a blanking pipe is connected to the sample inlet, an inlet of the blanking pipe is used for being connected with a sample tray, and a blanking port for communicating with the blanking pipe is arranged on the sample tray.
10. The sample feeder according to claim 9, further comprising a rotating device for controlling the sample plate to rotate horizontally, wherein a plurality of the blanking ports are arranged in the circumferential direction of the sample plate, and the blanking ports are parallel to the axis of the sample plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110954479.2A CN113533623A (en) | 2021-08-19 | 2021-08-19 | Sample feeder of element analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110954479.2A CN113533623A (en) | 2021-08-19 | 2021-08-19 | Sample feeder of element analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN113533623A true CN113533623A (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110954479.2A Pending CN113533623A (en) | 2021-08-19 | 2021-08-19 | Sample feeder of element analyzer |
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| Country | Link |
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| CN (1) | CN113533623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128203A (en) * | 2022-07-08 | 2022-09-30 | 北京捷思达仪分析仪器研发中心 | Automatic sample introduction device for thermal cracking chromatography |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196456A (en) * | 2007-12-29 | 2008-06-11 | 湖南三德科技发展有限公司 | Element analyzer with automatic supplying and sampling device |
| CN101236186A (en) * | 2008-03-13 | 2008-08-06 | 湖南三德科技发展有限公司 | Gas analyzer possessing automatic sample-placing device |
| CN201993369U (en) * | 2011-01-26 | 2011-09-28 | 长沙开元仪器股份有限公司 | Sample delivery mechanism of elemental analyzer |
| CN102636659A (en) * | 2012-05-09 | 2012-08-15 | 长沙瑞翔科技有限公司 | Automatic sampling device |
| CN210071855U (en) * | 2019-03-08 | 2020-02-14 | 湖南三德盈泰环保科技有限公司 | Sample feeding device for elemental analyzer and elemental analyzer |
| CN111856055A (en) * | 2020-07-27 | 2020-10-30 | 长沙开元仪器有限公司 | Feeding mechanism |
| CN215894519U (en) * | 2021-08-19 | 2022-02-22 | 长沙开元仪器有限公司 | Sample feeder of element analyzer |
-
2021
- 2021-08-19 CN CN202110954479.2A patent/CN113533623A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196456A (en) * | 2007-12-29 | 2008-06-11 | 湖南三德科技发展有限公司 | Element analyzer with automatic supplying and sampling device |
| CN101236186A (en) * | 2008-03-13 | 2008-08-06 | 湖南三德科技发展有限公司 | Gas analyzer possessing automatic sample-placing device |
| CN201993369U (en) * | 2011-01-26 | 2011-09-28 | 长沙开元仪器股份有限公司 | Sample delivery mechanism of elemental analyzer |
| CN102636659A (en) * | 2012-05-09 | 2012-08-15 | 长沙瑞翔科技有限公司 | Automatic sampling device |
| CN210071855U (en) * | 2019-03-08 | 2020-02-14 | 湖南三德盈泰环保科技有限公司 | Sample feeding device for elemental analyzer and elemental analyzer |
| CN111856055A (en) * | 2020-07-27 | 2020-10-30 | 长沙开元仪器有限公司 | Feeding mechanism |
| CN215894519U (en) * | 2021-08-19 | 2022-02-22 | 长沙开元仪器有限公司 | Sample feeder of element analyzer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128203A (en) * | 2022-07-08 | 2022-09-30 | 北京捷思达仪分析仪器研发中心 | Automatic sample introduction device for thermal cracking chromatography |
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