CN203672896U - Sample introduction device with double injection pumps - Google Patents
Sample introduction device with double injection pumps Download PDFInfo
- Publication number
- CN203672896U CN203672896U CN201320803476.XU CN201320803476U CN203672896U CN 203672896 U CN203672896 U CN 203672896U CN 201320803476 U CN201320803476 U CN 201320803476U CN 203672896 U CN203672896 U CN 203672896U
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- Prior art keywords
- valve
- pump
- sample
- operation valve
- communicated
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- Expired - Lifetime
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- 238000002347 injection Methods 0.000 title claims abstract description 13
- 239000007924 injection Substances 0.000 title claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 230000002829 reductive effect Effects 0.000 claims description 29
- 230000002572 peristaltic effect Effects 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 14
- 239000012159 carrier gas Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 3
- 238000007865 diluting Methods 0.000 abstract 1
- 238000001391 atomic fluorescence spectroscopy Methods 0.000 description 2
- 238000004401 flow injection analysis Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Images
Abstract
The utility model provides a sample introduction device with double injection pumps. A sample current-carrying pipe is communicated with the first valve location of a first control valve; one end of a sampling ring is communicated with the first control valve; the other end of the sampling ring is communicated with a second control valve; a sample pump is communicated with the first valve location of the second control valve; a waste liquid pipe is communicated with the second valve location of the second control valve; one end of a reducing agent pipe is communicated with the second valve location of a third control valve; a reducing agent pump is communicated with the third control valve. The sample introduction device adopts the injection pumps to accurately control collection and reaction of the sample and the reducing agent; meanwhile, structural components of switch valves and the like which are contacted with chemical solution directly are not adopted, so that liquid remaining volume is relatively small during using, influence on sample introduction is relatively low, and quantitative accuracy of the sample is relatively high; applying effect of functions of automatically configuring standard series on-line of single point density, automatically diluting a high-concentration sample on-line, and the like is improved; accuracy and detection limit of the apparatus are improved; degree of automation of the apparatus is improved.
Description
Technical field
The utility model relates to a kind of double injection pump sampling device, belongs to sampling device technical field.
Background technology
Atomic fluorescence spectrometer is conventional spectral class analytical instrument.Can be divided into three kinds of flow injection, Generation-Atomic Fluorescence Spectrometry and sequential flowings according to the input mode of atomic fluorescence spectrometer.But, in use there is sampling valve easy-to-leak liquid in flow injection sampling device, in sample introduction needle and sample feeding pipe, easily produce sample cross pollution, and due to the structure problem of sampling device liquid driven parts, easily cause that sample is long-time causes detecting inaccurate problem after quantitatively, and the tightness that pump line briquetting regulates directly affects the problem in the test performance of instrument and the serviceable life of pump line, in prior art, there is the shortcomings such as human factor impact is larger.Although and Generation-Atomic Fluorescence Spectrometry sampling device part has solved the problem of sample cross pollution, inaccurate and human factor impact is larger after quantitatively long-time for the impaired sample causing of fatigue of pump line etc., and shortcoming does not have substantial change.Although sequential flowing sampling device has been realized substituting of pump line, better solve quantitatively inaccurate shortcoming of sample, reduce analytical reagent consumption simultaneously.But sequential flowing sampling device but has structural defect, soda liquor container as independent in needs, the problems such as the degree complexity that increase device arranges.
Summary of the invention
The purpose of this utility model is in order to solve above-mentioned three kinds of problems that existing sampling device exists, and then a kind of double injection pump sampling device is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of double injection pump sampling device, comprising: sample current-carrying tube, the first operation valve, sampling ring, the second operation valve, sample pump, carrier gas pipe, reactor, gas-liquid separator, the 3rd operation valve, reductive agent pump, reductive agent pipe, peristaltic pump, sewer pipe and gas outlet pipe, described sample current-carrying tube is connected with the first valve position of the first operation valve, one end of sampling ring is connected with the first operation valve, the other end of sampling ring is connected with the second operation valve, sample pump is connected with the first valve position of the second operation valve, sewer pipe is connected with the second valve position of the second operation valve, one end of reductive agent pipe is connected with the second valve position of the 3rd operation valve, reductive agent pump is connected with the 3rd operation valve, the reductive agent inlet end of reactor is connected with the first valve position of the 3rd operation valve, the sample of reactor or current-carrying inlet end are connected with the second valve position of the first operation valve, the gas liquid outlet end of reactor is connected with the entrance of gas-liquid separator, the gas vent of gas-liquid separator is connected with gas outlet pipe, the liquid outlet of gas-liquid separator is connected with the entrance of peristaltic pump pump line, the outlet of peristaltic pump pump line is connected with sewer pipe, carrier gas pipe is connected with the carrier gas inlet end of reactor.
The utility model adopts collection and the reaction of the accurate Quality control of syringe pump and reductive agent, the structure members such as the cross-over valve that employing directly contacts with chemical solution, in use, the remaining volume of liquid is less, impact on sample introduction is less, sample quantitative accuracy is higher, can improve the on-line automatic configuration standard series of single-point concentration, the online effect that enriched sample is carried out to the functions such as automatic dilution, has improved precision and the detection limit of instrument, the automaticity that has improved instrument, cost performance is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of double injection pump of the utility model sampling device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: the present embodiment is implemented under take technical solutions of the utility model as prerequisite, has provided detailed embodiment, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, a kind of double injection pump sampling device that the present embodiment is related, comprise: sample current-carrying tube 1, the first operation valve 2, sampling ring 3, the second operation valve 4, sample pump 5, carrier gas pipe 6, reactor 7, gas-liquid separator 8, the 3rd operation valve 9, reductive agent pump 10, reductive agent pipe 11, peristaltic pump 12, sewer pipe 13 and gas outlet pipe 14, described sample current-carrying tube 1 is connected with the first valve position A of the first operation valve 2, one end of sampling ring 3 is connected with the first operation valve 2, the other end of sampling ring 3 is connected with the second operation valve 4, sample pump 5 is connected with the first valve position C of the second operation valve 4, sewer pipe 13 is connected with the second valve position D of the second operation valve 4, one end of reductive agent pipe 11 is connected with the second valve position F of the 3rd operation valve 9, reductive agent pump 10 is connected with the 3rd operation valve 9, the reductive agent inlet end a of reactor 7 is connected with the first valve position E of the 3rd operation valve 9, the sample of reactor 7 or current-carrying inlet end b are connected with the second valve position B of the first operation valve 2, the gas liquid outlet end c of reactor 7 is connected with the entrance of gas-liquid separator 8, the gas vent of gas-liquid separator 8 is connected with gas outlet pipe 14, the liquid outlet of gas-liquid separator 8 is connected with the entrance of peristaltic pump 12 pump lines, the outlet of peristaltic pump 12 pump lines is connected with sewer pipe 13, carrier gas pipe 6 is connected with the carrier gas inlet end d of reactor 7.
Described sample pump 5 and reductive agent pump 10 are syringe pump, ram pump, membrane pump or ceramic piston pump.
Described the first operation valve 2, the second operation valve 4 and the 3rd operation valve 9 are solenoid valve, T-valve, multi-position valve, pinch valve or stop valve.
A kind of double injection pump of the present embodiment sampling device workflow:
The first step, initialization: (1) first operation valve 2 is got to the second valve position B, the second operation valve 4 is got to the first valve position C, and the 3rd operation valve 9 is got to the first valve position E, and sample pump 5 and reductive agent pump 10 reset, and peristaltic pump 12 rotates, and resets and finishes, and peristaltic pump 12 stops operating; (2) sample current-carrying tube 1 is put in current-carrying, the first operation valve 2 is got to the first valve position A, and the second operation valve 4 is got to the second valve position D, and peristaltic pump 12 rotates certain hour, in the pipeline that sample current-carrying tube 1, sampling ring 3 and sewer pipe 13 are communicated with, be full of current-carrying, peristaltic pump 12 stops operating; (3) first operation valves 2 are got to the first valve position A, and the second operation valve 4 is got to the first valve position C, and the 3rd operation valve 9 is got to the second valve position F, and sample pump 5 and reductive agent pump 10 pistons move downward, and draw respectively appropriate current-carrying and reductive agent; (4) first operation valves 2 are got to the second valve position B, and the 3rd operation valve 9 is got to the first valve position E, and sample pump 5 and reductive agent pump 10 reset, and peristaltic pump 12 rotates, and reset and finish, and peristaltic pump 12 stops operating; (5) repeatedly repeat (3), (4) step repeatedly, until air emptying in sample pump 5 and reductive agent pump 10.Now sample pump 5 and reductive agent pump 10 are in reset mode.
Second step, inhale sample: (1) inhales sample, sample current-carrying tube 1 is placed in sample, the first operation valve 2 is got to the first valve position A, the second operation valve 4 is got to the first valve position C, sample pump 5 is drawn quantitative sample, and then sample current-carrying tube 1 is switched in current-carrying by automatic sampler or by craft, and sample pump 5 continues to draw quantitative current-carrying; (2) inhale reductive agent, the 3rd operation valve 9 is got to the second valve position F, reductive agent pump 10 is drawn quantitative reductive agent.
The 3rd step, sample introduction: the first operation valve 2 is got to the second valve position B, the second operation valve 4 is got to the first valve position C, and the 3rd operation valve 9 is got to the first valve position E, peristaltic pump 12 rotates, and sample pump 5 and reductive agent pump 10 equivalent that simultaneously moves upward advances until sample and reductive agent enter reactor 7 completely.Reaction product enters gas-liquid separator 8 and carries out gas-liquid separation, and the gas of generation enters atomizer by gas outlet pipe 14 and detects, and waste liquid is discharged by peristaltic pump 12 and sewer pipe 13.Meanwhile, sample current-carrying tube 1 is put into current-carrying, and the first operation valve 2 is got to the first valve position A, and the second operation valve 4 is got to the second valve position D, and current-carrying cleans sampling ring 3 pipelines, after certain hour, cleans completely, and peristaltic pump 12 stops operating.
The utility model can be realized the full-automation of atomic fluorescence spectrometer, has improved service efficiency and the practicality of atomic fluorescence spectrometer, is the more satisfactory sampling device for atomic fluorescence spectrometer.
The above; it is only preferably embodiment of the utility model; these embodiments are all the different implementations based under the utility model general idea; and protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (2)
1. a double injection pump sampling device, comprise: sample current-carrying tube (1), the first operation valve (2), sampling ring (3), the second operation valve (4), sample pump (5), carrier gas pipe (6), reactor (7), gas-liquid separator (8), the 3rd operation valve (9), reductive agent pump (10), reductive agent pipe (11), peristaltic pump (12), sewer pipe (13) and gas outlet pipe (14), it is characterized in that, described sample current-carrying tube (1) is connected with first valve position (A) of the first operation valve (2), one end of sampling ring (3) is connected with the first operation valve (2), the other end of sampling ring (3) is connected with the second operation valve (4), sample pump (5) is connected with first valve position (C) of the second operation valve (4), sewer pipe (13) is connected with second valve position (D) of the second operation valve (4), one end of reductive agent pipe (11) is connected with second valve position (F) of the 3rd operation valve (9), reductive agent pump (10) is connected with the 3rd operation valve (9), the reductive agent inlet end (a) of reactor (7) is connected with first valve position (E) of the 3rd operation valve (9), the sample of reactor (7) or current-carrying inlet end (b) are connected with second valve position (B) of the first operation valve (2), the gas liquid outlet end (c) of reactor (7) is connected with the entrance of gas-liquid separator (8), the gas vent of gas-liquid separator (8) is connected with gas outlet pipe (14), the liquid outlet of gas-liquid separator (8) is connected with the entrance of peristaltic pump (12) pump line, the outlet of peristaltic pump (12) pump line is connected with sewer pipe (13), carrier gas pipe (6) is connected with the carrier gas inlet end (d) of reactor (7).
2. double injection pump sampling device according to claim 1, is characterized in that, described sample pump (5) and reductive agent pump (10) are syringe pump, ram pump, membrane pump or ceramic piston pump.
3. double injection pump sampling device according to claim 1, is characterized in that, described the first operation valve (2), the second operation valve (4) and the 3rd operation valve (9) are solenoid valve, T-valve, multi-position valve, pinch valve or stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803476.XU CN203672896U (en) | 2013-12-09 | 2013-12-09 | Sample introduction device with double injection pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803476.XU CN203672896U (en) | 2013-12-09 | 2013-12-09 | Sample introduction device with double injection pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672896U true CN203672896U (en) | 2014-06-25 |
Family
ID=50969176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320803476.XU Expired - Lifetime CN203672896U (en) | 2013-12-09 | 2013-12-09 | Sample introduction device with double injection pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672896U (en) |
-
2013
- 2013-12-09 CN CN201320803476.XU patent/CN203672896U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING BOHUI INNOVATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING RUIGUANG INSTRUMENT CO., LTD. Effective date: 20140925 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100015 CHAOYANG, BEIJING TO: 102206 CHANGPING, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140925 Address after: 102206 No. 9 middle road, Changping District life science and Technology Park, Beijing Patentee after: BEIJING BOHUI INNOVATION TECHNOLOGY Co.,Ltd. Address before: 100015 No. 5, building 8, building 1, Jiuxianqiao East Road, Chaoyang District, Beijing Patentee before: Beijing Ruiguang Instrument Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 102206 9 life Garden Road, Changping District, Beijing Patentee after: BEIJING BOHUI INNOVATION BIOTECHNOLOGY Co.,Ltd. Address before: 102206 No. 9 middle road, life science and Technology Park, Changping District, Beijing Patentee before: BEIJING BOHUI INNOVATION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102206 9 life Garden Road, Changping District, Beijing Patentee after: Beijing Bohui innovative biotechnology group Co.,Ltd. Address before: 102206 9 life Garden Road, Changping District, Beijing Patentee before: BEIJING BOHUI INNOVATION BIOTECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
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| CX01 | Expiry of patent term |