CN204945157U - A kind of full-automatic gas-liquid multi-usage injector - Google Patents
A kind of full-automatic gas-liquid multi-usage injector Download PDFInfo
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- CN204945157U CN204945157U CN201520748239.7U CN201520748239U CN204945157U CN 204945157 U CN204945157 U CN 204945157U CN 201520748239 U CN201520748239 U CN 201520748239U CN 204945157 U CN204945157 U CN 204945157U
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Abstract
The utility model discloses a kind of full-automatic gas-liquid multi-usage injector, and comprise pipe system, described pipe system comprises connecting pipeline, and connecting pipeline is provided with sample choice valve, and sample choice valve is communicated with deactivation three-way connection and atmospheric valve; Atmospheric valve is communicated with vacuum pump; Deactivation three-way connection is communicated with deactivation filtrator and atmospheric valve, and deactivation filtrator is communicated with deactivation six-way valve, and deactivation six-way valve is communicated with transfer valve, carrier gas device and analytical instrument; Transfer valve is communicated with counterbalance valve and sample flow meter; Pipe system is connected with computer control system.The utility model makes injector to analysis component without absorption, the valve simultaneously designing multiple different model cooperatively interacts, automatically switches, ensure that the sample entering analytical instrument has fine representativeness, and the sample introduction analysis of gas, the dissimilar sample of liquid can be realized on an injector, fluid sample can enter analytical instrument in liquid form, also laggard to analytical instrument by homogeneous gasification.
Description
Technical field
The utility model belongs to instrumental analysis field, particularly relates to a kind of full-automatic gas-liquid multi-usage injector.
Background technology
Gas (comprise by heating can the fluid sample of Quick-gasifying) sample feeding device is more common with autovalve sample introduction pattern, to enter the factors such as the homogeneity that the accuracy of sample analysis and gas circuit sealing, the speed of sample introduction speed, fluid sample gasify closely related.The most masty in analysis is the cross pollution of the repeatability of sample size, the homogeneity of sample and same instrumental analysis sample room, and for Multi-example automatic sampling device, these problems seem more outstanding.The more general practice is that gas sampler only has a gas sampling mouth or adds a Liquid sample introduction gasifier more now, only does monocyte sample analysis, artificially processes injector gas circuit again, to prevent the next sample analysis of residual interference after having entered sample.
Again, there is sample representation difference in existing gas sampler, can not mixed connection gas sample source and liquid sample source, and sample room exists cross pollution, because sample has the Liquid Residue not easily gasified to make injector block; Fluid sample gasification result is poor, can not ensure that the sample after gasifying has good representativeness; Ensureing between injector with analytical instrument that seamless connection realizes sample sequence auto injection analysis difficulty, because easily causing sample room cross pollution, directly having influence on analysis result accuracy.
Utility model content
For the utility model that solves the problem provides a kind of full-automatic gas-liquid multi-usage injector.The utility model makes injector to analysis component without absorption, the valve simultaneously designing multiple different model cooperatively interacts, automatically switches, ensure that the sample entering analytical instrument has fine representativeness, and the sample introduction analysis of gas, the dissimilar sample of liquid can be realized on an injector, add robotization gas circuit cleaning system, avoid the cross pollution of sample room in analytic process, under the effect of vacuum pump, prevent dead volume residual sample contaminated environment simultaneously.
For reaching above-mentioned technique effect, the technical solution of the utility model is:
A kind of full-automatic gas-liquid multi-usage injector, comprise pipe system, described pipe system comprises connecting pipeline, connecting pipeline is provided with sample choice valve, sample choice valve is provided with sampling valve and air outlet valve, and sampling valve is communicated with deactivation three-way connection, and air outlet valve is communicated with atmospheric valve, atmospheric valve is communicated with vacuum pump by three-way connection A, deactivation three-way connection is communicated with deactivation filtrator and atmospheric valve, deactivation filtrator is communicated with deactivation six-way valve, deactivation six-way valve is provided with the first valve, second valve, 3rd valve, 4th valve, 5th valve and the 6th valve, deactivation filtrator is communicated with the first valve through needle-valve, first valve is communicated with the second valve, second valve is communicated with the 5th valve by quantitative loop, 5th valve is communicated with the 6th valve, 6th valve is communicated with the first logical valve, first logical valve is communicated with transfer valve, transfer valve is communicated with counterbalance valve and three-way connection B, three-way connection B is communicated with counterbalance valve and sample flow meter, sample flow meter is communicated with three-way connection A, counterbalance valve is provided with the first tensimeter, 3rd valve is communicated with carrier gas device, and the 4th valve is communicated with analytical instrument, the 3rd valve and the 4th valve UNICOM, deactivation six-way valve is in heating cabinet.
Further improvement, the described first logical valve is communicated with blow down valve, and blow down valve is communicated with purge stream gauge, and blow down valve is provided with the second tensimeter.
Further improvement, described 4th valve is communicated with multiple analytical instrument by deactivation multidigit selector valve.
Further improvement, described heating cabinet is connected with temperature indicator.
Further improvement, the sampling valve on described sample choice valve is 4.
Further improvement, the inner and outer wall of described pipe system is all coated with silicon coating.
Further improvement, pipe system is connected with computer control system.
Advantage of the present utility model:
1. automaticity is high, can realize and instrument synchronous operation.
2. highly versatile, can analyze airbag sample and steel cylinder sample simultaneously.
3. achieve self-purification function, ensure that sample room is without cross pollution.
4. achieve Multi-example by computer control system to sort arbitrarily by user's request, automatic analysis.
5. computer control system achieves after closedown sample steel cylinder or airbag, residual sample or by the emptying sample of user's request in each steel cylinder of automatic emptying or airbag connecting pipeline.
6. select sampling valve to achieve same sample or the auto injection analysis in different analytical instrument of different sample.
7. steel cylinder liquid sample can realize heating and gasifying sample introduction or sample introduction in liquid form.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment
The full-automatic gas-liquid multi-usage of one as shown in Figure 1 injector, comprise pipe system, it is characterized in that, described pipe system comprises connecting pipeline 23, connecting pipeline 23 is provided with sample choice valve 1, sample choice valve 1 is provided with 4 sampling valves 24 and 1 air outlet valve 25, and sampling valve 24 is communicated with deactivation three-way connection 3, and air outlet valve 25 is communicated with atmospheric valve 2; Atmospheric valve 2 is communicated with vacuum pump 5 by three-way connection A4; Deactivation three-way connection 3 is communicated with deactivation filtrator 6 and atmospheric valve 2, deactivation filtrator 6 is communicated with deactivation six-way valve 8, deactivation six-way valve 8 is provided with the first valve 81, second valve 82, the 3rd valve 83, the 4th valve 84, the 5th valve 85 and the 6th valve 86, deactivation filtrator 6 is communicated with the first valve 81 through needle-valve 7, first valve 81 is communicated with the second valve 82, second valve 82 is communicated with the 5th valve 85 by quantitative loop 87,5th valve 85 is communicated with the 6th valve the 86, six valve 86 and is communicated with the first logical valve 11.First logical valve 11 is communicated with transfer valve 12 and blow down valve 18, and blow down valve 18 is communicated with purge stream gauge 20, and blow down valve 18 is provided with the second tensimeter 19.Transfer valve 12 is communicated with counterbalance valve 13 and three-way connection B14, and three-way connection B14 is communicated with counterbalance valve 13 and sample flow meter 15, and sample flow meter 15 is communicated with three-way connection A4; Counterbalance valve 13 is provided with the first tensimeter 17; 3rd valve 83 is communicated with carrier gas device 10, and the 4th valve 84 is communicated with multiple analytical instrument 9 by deactivation multidigit selector valve 22, the 3rd valve 83 and the 4th valve 84 UNICOM; Deactivation six-way valve 8 is in heating cabinet 16, and heating cabinet 16 is connected with temperature indicator 21.The inner and outer wall of pipe system is all coated with silicon coating.Pipe system is connected with computer control system.
The operation of pipe system to be driven by buffer circuit by computer control system and automatically completes.
Pressure in pipe system, temperature, flow are measured by corresponding Detection theory device, and signal enters computer software through A/D conversion, feeds back corresponding control signal again by computing machine.
Pipe system is also provided with combustible gas detection part, prevents leakage from having an accident, and dangerous matter sources signal can be sent to terminal user by computer software simultaneously.
The synchronous operation signal of analytical instrument 9 is realized by RS232 serial communication.
When using steel cylinder sample to detect, because steel cylinder sample is all generally fluid sample with pressure, when after a certain steel cylinder sample of selection, under control of the computer control system, sample is first by atmospheric valve 2 and vacuum pump 5 discharge unit dead volume sample, then atmospheric valve 2 is closed, the deactivation six-way valve 8 of sample in deactivation filtrator 6, needle-valve 7, heating cabinet 16, the quantitative loop 87 in deactivation six-way valve 8, transfer valve 12, counterbalance valve 13, sample flow meter 15 and vacuum pump 5 are quantitatively replaced, and vaporization time swap length is determined by specific experiment.After deactivation six-way valve 8 has entered sample, sample choice valve 1 resets, and atmospheric valve 2 is opened, and blow down valve 18 is opened, and carry out purification to pipeline and purge, purge time length for benchmark, can not affect next sample analysis with pipeline noresidue sample.
When detecting with airbag sample feeding: because airbag sample is all generally low-pressure gas sample, lean on vacuum pump 5 that sample is drawn into quantitative loop 87.After computer control system selects a certain airbag sample, atmospheric valve 2 is in closed condition in whole sampling process.Under computer, the deactivation six-way valve 8 of sample in deactivation filtrator 6, needle-valve 7, heating cabinet 16, the quantitative loop 87 in deactivation six-way valve 8, transfer valve 12, sample flow meter 15 and vacuum pump 5 are quantitatively replaced, and time swap length is determined by specific experiment.After deactivation six-way valve 8 has entered sample, sample choice valve 1 resets, and blow down valve 18 is opened, and carry out purification to pipeline and purge, purge time length for benchmark, can not affect next sample analysis with pipeline noresidue sample.
Sample choice valve 1 in the utility model matches with purge stream gauge 20, vacuum pump 5, airbag sample and steel cylinder sample with pressure can be communicated with alternately, under the control of computer control system, each sample connects sequence analysis and has purge stream gauge 20 to purge connecting pipeline 23, ensures that sample room can not because of residual contamination.Because there is vacuum pump 5, analyzing after sample closes sample choice valve 1, by vacuumizing the remaining sample of emptying pipeline and preventing pollution connecting pipeline 23 and injector surrounding environment.Ensure the not remaining sample of injector, avoid the pollution of injector.
Existing injector analyze sample time, steel cylinder sample be difficult to without raffinate as water, liquid caustic soda, liquid acid etc., sometimes also have insoluble particle pollutant.And in the utility model, sample first by atmospheric valve 2 discharge unit, which ensure that gasification sample is representative before analyzing, avoid injector line clogging simultaneously.Deactivation filtrator 6 can protect follow-up gas circuit clean, the gasification rate of needle-valve 7 Quality control, ensures that the even constant speed gasification of regulatory requirements pressed by sample.
After a sample gasification sample introduction completes, under the control of computer control system, provide purified gas to purge gas circuit through blow down valve 18 to injector, purified gas blowback deactivation filtrator 6 makes its self-purification keep permanent use.Counterbalance valve 13, for controlling sample size, makes testing result have repeatability, ensures that the sample at every turn entering instrument is consistent as far as possible.
Under the control of computer control system, the sample type according to user's setting can varitrol input mode by controlling transfer valve 12.This injector can also add again joins a deactivation multidigit selector valve, and different sample or same sample are assigned to different analytical instrument by user's preset program.Robotization gas circuit cleaning system in injector, avoid the cross pollution of sample room in analytic process, under the effect of vacuum pump, prevent sample introduction steel cylinder to selecting remaining of dead volume sample between sampling valve simultaneously, it also avoid the residual sample when changing steel cylinder or airbag sample to be discharged in surrounding equipment environment and to damage health, ensure that analysis clean and safe.Computer control system can pass through deactivation multidigit selector valve 22, different sample or same sample is assigned to different analytical instrument by user's preset program, thus realizes the quick detection of quick sample.
The utility model can place high-pressure cylinder sample and airbag sample by sequence, all can detect steel cylinder sample and airbag sample, and can automatically switch in order, can make the self-purging of experiment pipeline, an automatic sampler can control multiple stage analytical instrument and distribute sample to different instrument.
The explanation of above example just understands core concept of the present utility model for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (7)
1. a full-automatic gas-liquid multi-usage injector, comprise pipe system, it is characterized in that, described pipe system comprises connecting pipeline (23), connecting pipeline (23) is provided with sample choice valve (1), sample choice valve (1) is provided with sampling valve (24) and air outlet valve (25), and sampling valve (24) is communicated with deactivation three-way connection (3), and air outlet valve (25) is communicated with atmospheric valve (2), atmospheric valve (2) is by three-way connection A(4) be communicated with vacuum pump (5), deactivation three-way connection (3) is communicated with deactivation filtrator (6) and atmospheric valve (2), deactivation filtrator (6) is communicated with deactivation six-way valve (8), deactivation six-way valve (8) is provided with the first valve (81), second valve (82), 3rd valve (83), 4th valve (84), 5th valve (85) and the 6th valve (86), deactivation filtrator (6) is communicated with the first valve (81) through needle-valve (7), first valve (81) is communicated with the second valve (82), second valve (82) is communicated with the 5th valve (85) by quantitative loop (87), 5th valve (85) is communicated with the 6th valve (86), 6th valve (86) is communicated with the first logical valve (11), first logical valve (11) is communicated with transfer valve (12), transfer valve (12) is communicated with counterbalance valve (13) and three-way connection B(14), three-way connection B(14) be communicated with counterbalance valve (13) and sample flow meter (15), sample flow meter (15) and three-way connection A(4) be communicated with, counterbalance valve (13) is provided with the first tensimeter (17), 3rd valve (83) is communicated with carrier gas device (10), and the 4th valve (84) is communicated with analytical instrument (9), the 3rd valve (83) and the 4th valve (84) UNICOM, deactivation six-way valve (8) is in heating cabinet (16).
2. full-automatic gas-liquid multi-usage injector as claimed in claim 1, it is characterized in that, described first logical valve (11) is communicated with blow down valve (18), and blow down valve (18) is communicated with purge stream gauge (20), and blow down valve (18) is provided with the second tensimeter (19).
3. full-automatic gas-liquid multi-usage injector as claimed in claim 1, it is characterized in that, described 4th valve (84) is communicated with multiple analytical instrument (9) by deactivation multidigit selector valve (22).
4. full-automatic gas-liquid multi-usage injector as claimed in claim 1, it is characterized in that, described heating cabinet (16) is connected with temperature indicator (21).
5. full-automatic gas-liquid multi-usage injector as claimed in claim 1, it is characterized in that, the sampling valve (24) on described sample choice valve (1) is 4.
6. full-automatic gas-liquid multi-usage injector as claimed in claim 1, it is characterized in that, the inner and outer wall of described pipe system is all coated with silicon coating.
7. full-automatic gas-liquid multi-usage injector as claimed in claim 1, it is characterized in that, described pipe system is connected with computer control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748239.7U CN204945157U (en) | 2015-09-24 | 2015-09-24 | A kind of full-automatic gas-liquid multi-usage injector |
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| CN201520748239.7U CN204945157U (en) | 2015-09-24 | 2015-09-24 | A kind of full-automatic gas-liquid multi-usage injector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891391A (en) * | 2016-06-29 | 2016-08-24 | 天津博纳艾杰尔科技有限公司 | Automatic sampling device |
| CN106199032A (en) * | 2016-06-30 | 2016-12-07 | 南京润泽流体控制设备有限公司 | The sampling device of no cross contamination and control method thereof |
| CN107976552A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | The universal sampling device and general sample injection method of gaseous hydrocarbon and liquefied petroleum gas |
-
2015
- 2015-09-24 CN CN201520748239.7U patent/CN204945157U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891391A (en) * | 2016-06-29 | 2016-08-24 | 天津博纳艾杰尔科技有限公司 | Automatic sampling device |
| CN105891391B (en) * | 2016-06-29 | 2019-02-12 | 天津博纳艾杰尔科技有限公司 | A kind of automatic sampling apparatus |
| CN106199032A (en) * | 2016-06-30 | 2016-12-07 | 南京润泽流体控制设备有限公司 | The sampling device of no cross contamination and control method thereof |
| CN106199032B (en) * | 2016-06-30 | 2018-05-08 | 南京润泽流体控制设备有限公司 | A kind of sample injection method of no cross contamination |
| CN107976552A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | The universal sampling device and general sample injection method of gaseous hydrocarbon and liquefied petroleum gas |
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