CN203083932U - Sequential injection steam generation system - Google Patents

Sequential injection steam generation system Download PDF

Info

Publication number
CN203083932U
CN203083932U CN 201220739983 CN201220739983U CN203083932U CN 203083932 U CN203083932 U CN 203083932U CN 201220739983 CN201220739983 CN 201220739983 CN 201220739983 U CN201220739983 U CN 201220739983U CN 203083932 U CN203083932 U CN 203083932U
Authority
CN
China
Prior art keywords
valve
operation valve
connects
pump
steam generation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201220739983
Other languages
Chinese (zh)
Inventor
孙鹏
李明章
杜江
逯玉凤
李崇江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Haiguang Instrument Co., Ltd.
Original Assignee
BEIJING KECHUANG HAIGUANG INSTRUMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING KECHUANG HAIGUANG INSTRUMENT Co Ltd filed Critical BEIJING KECHUANG HAIGUANG INSTRUMENT Co Ltd
Priority to CN 201220739983 priority Critical patent/CN203083932U/en
Application granted granted Critical
Publication of CN203083932U publication Critical patent/CN203083932U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a sequential injection steam generation system. The sequential injection steam generation system comprises a quantitative sample introduction module, a steam generation module linked with the quantitative sample introduction module, as well as a fluid driving module linked with the steam generation module, wherein the quantitative module comprises a quantitative ring, a first control valve, a tee and a second control valve which are sequentially linked; the second control valve is linked to the steam generation module; and the tee is further sequentially linked with a sample ring and a metering pump. The sequential injection steam generation system disclosed by the utility model has the advantages that samples are quantitative and precise, single-concentration point automatic configuration standard series, online automatic dilution of high-concentration samples and other advanced automation functions can be realized, the control degree of dispersion of test samples is higher, the steam generation time sequence is accurate, the reaction is complete, the repeatability is better, the sensitivity of an instrument can be improved, the precision and detection limits are improved, and better analysis effects can be achieved.

Description

A kind of sequential injection steam generating system
Technical field
The utility model relates to the chemical plant field, in particular, relates to a kind of sequential injection steam generating system.
Background technology
There is perishable, the easy to wear leakage of sampling valve in existing atomic fluorescence steam generating system, has dead volume, and the valve position switching is easy to generate the sample cross pollution, and long-term the use is prone to quantitative accuracy decline, causes testing result inaccurate; And the employing peristaltic pump, also can be along with the wear and aging of pump line, quantitative precision descends.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of sequential injection steaming that can ensure quantitative precision in long-term the use VapourGeneration systems.
The purpose of this utility model is achieved through the following technical solutions:
A kind of sequential injection steam generating system, comprise quantitative sample injection module, the steam generation module that connects with the quantitative sample injection module, the fluid drives module that connects with the steam generation module, described quantitative module comprise quantitative ring, first operation valve, threeway and second operation valve that connects successively; Described second operation valve is connected to described steam generation module; Described threeway also is orderly connected with sample loop and volume pump.
Further, described fluid drives module comprises peristaltic pump.
Further, described steam generation module comprises the reaction block that connects with second operation valve, the gas-liquid separator that connects with reaction block; Described reaction block also is connected with carrier gas pipe and reductive agent pipe, and described reductive agent pipe is connected to described reaction block by described peristaltic pump.The stream of existing atomic fluorescence steam generating system is too complicated, and the failure rate height is maintainable poor, occurs reagent or steam leakage easily, brings error to measurement.The technical program is transported to reaction block with unifications such as sample, current-carrying, reductive agent, gases, after sample, current-carrying, reductive agent, gas etc. fully mix in reaction block, be sent to gas-liquid separator again and carry out separating of gas and liquid, simplified system architecture, reduce failure rate, improved maintainability.All fluids are all handled the leakage that also is not easy to produce reagent and steam by gas-liquid separator is unified.
Further, first port of described gas-liquid separator connects with described reaction block, and its second port is connected with steam pipe, and its 3rd port is connected with the waste liquid remover.
Further, described waste liquid remover comprises the 3rd operation valve that connects with the 3rd port of gas-liquid separator, the sewer pipe that connects with the 3rd operation valve.
Further, described first operation valve, second operation valve and the 3rd operation valve are to have liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
Further, described waste liquid remover comprises sewer pipe, and described sewer pipe one end is connected to the 3rd port of described gas-liquid separator, and the other end is connected to described peristaltic pump.
Further, described volume pump is any one in syringe pump, ram pump, membrane pump or the Ceramic piston volume pump with accurate measurement function.
Further, described first operation valve and second operation valve are to have liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
Further, described steam generation and Separate System of Water-jet adopt the inside and outside double-deck quartz ampoule structure of coaxial-type.
Further, described fluid drives module comprises peristaltic pump; Described steam generation module comprises the reaction block that connects with second operation valve, the gas-liquid separator that connects with reaction block; Described reaction block also is connected with carrier gas pipe and reductive agent pipe, and described reductive agent pipe is connected to described reaction block by described peristaltic pump; First port of described gas-liquid separator connects with described reaction block, and its second port is connected with steam pipe, and its 3rd port is connected with the waste liquid remover; Described volume pump is any one in syringe pump, ram pump, membrane pump or the Ceramic piston volume pump with accurate measurement function; Described first operation valve and second operation valve are to have liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
The utility model is owing to adopted volume pump, and the process of quantitative collection is to be finished by volume pump, can accurately control, even if also can not influence sampling precision after long-term work causes the liquid driven module aging.The utility model is except that improving the technological deficiency that has interrupted flow sampling device and the existence of order flow injection now, has sampling quantitatively accurately, can realize the automatic configuration standard series of single concentration point, online enriched sample such as is diluted automatically at advanced automation function, sample disperses controlled degree higher, and the steam generation reaction is more abundant, gas-liquid separation effect is better, improved the sensitivity of instrument, improved precision and detection limit, to obtain better analytical effect.The utility model is except that the technological deficiency of improving existing steam generating system, also has the quantitatively accurate advantage of sample, can realize the automatic configuration standard series of single concentration point, online to advanced automation functions such as the automatic dilutions of enriched sample, sample disperses controlled degree higher, the steam generation sequential is accurate, react completely, repeatability is better, the sensitivity that can improve instrument, improve precision and detection limit, reach better analytical effect.
Description of drawings
Fig. 1 is the principle schematic of the utility model embodiment one;
Fig. 2 is the principle schematic of the utility model embodiment two.
Wherein: 1, reductive agent pipe; 2, sewer pipe; 3, peristaltic pump; 4, quantitatively encircle; 5, first operation valve; 6, second operation valve; 7, threeway; 8, sample loop; 9, volume pump; 10, carrier gas pipe; 11, reaction block; 12, steam pipe; 13, gas-liquid separator; 14, the 3rd operation valve.
Embodiment
The utility model discloses a kind of sequential injection steam generating system.The sequential injection steam generating system comprises quantitative sample injection module, the steam generation module that connects with the quantitative sample injection module, the fluid drives module that connects with the steam generation module, described quantitative module comprise quantitative ring, first operation valve, threeway and second operation valve that connects successively; Described second operation valve is connected to described steam generation module; Described threeway also is orderly connected with sample loop and volume pump.
The utility model is owing to adopted volume pump, and the process of quantitative collection is to be finished by volume pump, can accurately control, even if also can not influence sampling precision after long-term work causes the liquid driven module aging.The utility model is except that improving the technological deficiency that has interrupted flow sampling device and the existence of order flow injection now, has sampling quantitatively accurately, can realize the automatic configuration standard series of single concentration point, online enriched sample such as is diluted automatically at advanced automation function, sample disperses controlled degree higher, and the steam generation reaction is more abundant, gas-liquid separation effect is better, improved the sensitivity of instrument, improved precision and detection limit, to obtain better analytical effect.The utility model is except that the technological deficiency of improving existing steam generating system, also has the quantitatively accurate advantage of sample, can realize the automatic configuration standard series of single concentration point, online to advanced automation functions such as the automatic dilutions of enriched sample, sample disperses controlled degree higher, the steam generation sequential is accurate, react completely, repeatability is better, the sensitivity that can improve instrument, improve precision and detection limit, reach better analytical effect.
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
Embodiment one
As shown in Figure 1, the sequential injection steam generating system of present embodiment comprises quantitative sample injection module, the steam generation module that connects with the quantitative sample injection module, the fluid drives module that connects with the steam generation module, described quantitative module comprise quantitative ring 4, first operation valve 5, threeway 7 and second operation valve 6 that connects successively; Described second operation valve 6 is connected to described steam generation module; Described threeway 7 also is orderly connected with sample loop 8 and volume pump 9.Described fluid drives module comprises peristaltic pump 3; Described steam generation module comprises the reaction block 11 that connects with second operation valve 6, the gas-liquid separator 13 that connects with reaction block 11; Described reaction block 11 also is connected with carrier gas pipe 10 and reductive agent pipe 1, and described reductive agent pipe 1 is connected to described reaction block 11 by described peristaltic pump 3; First port of described gas-liquid separator 13 connects with described reaction block 11, and its second port is connected with steam pipe 12, and its 3rd port is connected with the waste liquid remover.
Described waste liquid remover comprises sewer pipe 2, and described sewer pipe 2 one ends are connected to the 3rd port of described gas-liquid separator 13, and the other end is connected to described peristaltic pump 3.
Described volume pump 9 is in syringe pump, ram pump, membrane pump or the Ceramic piston volume pump 9 with accurate measurement function any one; Described first operation valve 5, second operation valve 6 are for having liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
The stream of existing atomic fluorescence steam generating system is too complicated, and the failure rate height is maintainable poor, occurs reagent or steam leakage easily, brings error to measurement.The technical program is transported to reaction block 11 with unifications such as sample, current-carrying, reductive agent, gases, after sample, current-carrying, reductive agent, gas etc. fully mix in reaction block 11, be sent to gas-liquid separator 13 again and carry out separating of gas and liquid, simplified system architecture, reduce failure rate, improved maintainability.All fluids all pass through gas-liquid separator 13 unified processing, the leakage that also is not easy to produce reagent and steam.In addition, present embodiment is connected to peristaltic pump 3 at sewer pipe 2, controls the flow state of waste liquid by peristaltic pump 3, makes its sewer pipe 2 keep air-tight state in detachment process, and waste liquid can be discharged at cleaning process peristaltic pump 3.
The typical operation of present embodiment sequential injection steam generating system is as follows:
The first step, 5 conductings of first operation valve, second operation valve 6 turn-offs, peristaltic pump 3 stops operating, volume pump 9 is drawn the cleaning fluid of the specified amount in quantitative ring 4 and the sample loop 8, thereby utilize among the quantitative ring 4 of sample introducing and sample loop 8 of air negative pressure with specified amount, quantitatively encircle then 4 by automatic sampler automatically or by experiment personnel switch in the cleaning fluid by hand, volume pump 9 continues to draw with quantitatively encircling the identical cleaning fluid of 4 volumes, thereby guarantee that sample is retained in the sample loop 8 fully, should fully be full of cleaning fluid in quantitative ring 4 and the volume pump 9 this moment, and do not have sample, be that second one sample injection is prepared.
In second step, first operation valve 5 is closed, 6 conductings of second operation valve, and peristaltic pump 3 rotates, and the sample that volume pump 9 pushes in the sample loop 8 takes place as first step chemical reaction with reductive agent in reaction block 11, generates gaseous hydride or restores the simple substance mercuryvapour.Reaction block 11 can also feed gases such as argon gas by carrier gas pipe 10, can mix reagent to make chemical reaction more abundant, and promote gas-liquid mixture and enter gas-liquid separator 13, and the vapor reaction product of follow-up generation enters the detection module of back.
In the 3rd step, 5 conductings of first operation valve, second operation valve 6 turn-off, peristaltic pump 3 stalls, and volume pump 9 is drawn cleaning fluid and is entered quantitative ring 4 and sample loop 8;
The 4th goes on foot, and first operation valve 5 turn-offs, 6 conductings of second operation valve, and peristaltic pump 3 rotates, and volume pump 9 pushes cleaning fluids simultaneously, cleans the sample in the quantitative sampling stream is residual, and peristaltic pump 3 passes through waste liquid outside the sewer pipe 2 discharge systems.
Embodiment two
As shown in Figure 2, the sequential injection steam generating system of present embodiment comprises quantitative sample injection module, the steam generation module that connects with the quantitative sample injection module, the fluid drives module that connects with the steam generation module, described quantitative module comprise quantitative ring 4, first operation valve 5, threeway 7 and second operation valve 6 that connects successively; Described second operation valve 6 is connected to described steam generation module; Described threeway 7 also is orderly connected with sample loop 8 and volume pump 9.Described fluid drives module comprises peristaltic pump 3; Described steam generation module comprises the reaction block 11 that connects with second operation valve 6, the gas-liquid separator 13 that connects with reaction block 11; Described reaction block 11 also is connected with carrier gas pipe 10 and reductive agent pipe 1, and described reductive agent pipe 1 is connected to described reaction block 11 by described peristaltic pump 3; First port of described gas-liquid separator 13 connects with described reaction block 11, and its second port is connected with steam pipe 12, and its 3rd port is connected with the waste liquid remover.
Described waste liquid remover comprises the 3rd operation valve 14 that connects with the 3rd port of gas-liquid separator 13, the sewer pipe 2 that connects with the 3rd operation valve 14;
Described volume pump 9 is in syringe pump, ram pump, membrane pump or the Ceramic piston volume pump 9 with accurate measurement function any one; Described first operation valve 5, second operation valve 6 and the 3rd operation valve 14 are for having liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
The stream of existing atomic fluorescence steam generating system is too complicated, and the failure rate height is maintainable poor, occurs reagent or steam leakage easily, brings error to measurement.The technical program is transported to reaction block 11 with unifications such as sample, current-carrying, reductive agent, gases, after sample, current-carrying, reductive agent, gas etc. fully mix in reaction block 11, be sent to gas-liquid separator 13 again and carry out separating of gas and liquid, simplified system architecture, reduce failure rate, improved maintainability.All fluids all pass through gas-liquid separator 13 unified processing, the leakage that also is not easy to produce reagent and steam.In addition, present embodiment has increased by the 3rd operation valve 14 between sewer pipe 2 and separation and concentration device, and the state of convenient control sewer pipe 2 makes it keep air-tight state in detachment process, and keep conducting state in cleaning process.
The typical operation of present embodiment sequential injection steam generating system is as follows:
The first step, 5 conductings of first operation valve, second operation valve 6 turn-offs, peristaltic pump 3 stops operating, volume pump 9 is drawn the cleaning fluid of the specified amount in quantitative ring 4 and the sample loop 8, thereby utilize among the quantitative ring 4 of sample introducing and sample loop 8 of air negative pressure with specified amount, quantitatively encircle then 4 by automatic sampler automatically or by experiment personnel switch in the cleaning fluid by hand, volume pump 9 continues to draw with quantitatively encircling the identical cleaning fluid of 4 volumes, thereby guarantee that sample is retained in the sample loop 8 fully, should fully be full of cleaning fluid in quantitative ring 4 and the volume pump 9 this moment, and do not have sample, be that second one sample injection is prepared.
In second step, first operation valve 5 is closed, 6 conductings of second operation valve, and peristaltic pump 3 rotates, and the sample that volume pump 9 pushes in the sample loop 8 takes place as first step chemical reaction with reductive agent in reaction block 11, generates gaseous hydride or restores the simple substance mercuryvapour.Reaction block 11 can also feed gases such as argon gas by carrier gas pipe 10, can mix reagent to make chemical reaction more abundant, and promote gas-liquid mixture and enter gas-liquid separator 13, and the vapor reaction product of follow-up generation enters the detection module of back.
In the 3rd step, 5 conductings of first operation valve, second operation valve 6 turn-off, peristaltic pump 3 stalls, and 14 conductings of the 3rd operation valve, waste liquid is discharged via sewer pipe 2, need not pass through peristaltic pump 3, and volume pump 9 is drawn cleaning fluid and is entered quantitative ring 4 and sample loop 8.
In the 4th step, first operation valve 5 turn-offs, 6 conductings of second operation valve, and peristaltic pump 3 rotates, and volume pump 9 pushes cleaning fluid simultaneously, cleans the sample in the quantitative sampling stream is residual.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims (10)

1. sequential injection steam generating system, comprise quantitative sample injection module, the steam generation module that connects with the quantitative sample injection module, the fluid drives module that connects with the steam generation module, it is characterized in that described quantitative module comprises quantitative ring, first operation valve, threeway and second operation valve that connects successively; Described second operation valve is connected to described steam generation module; Described threeway also is orderly connected with sample loop and volume pump.
2. a kind of sequential injection steam generating system as claimed in claim 1 is characterized in that described fluid drives module comprises peristaltic pump.
3. a kind of sequential injection steam generating system as claimed in claim 2 is characterized in that, described steam generation module comprises the reaction block that connects with second operation valve, the gas-liquid separator that connects with reaction block; Described reaction block also is connected with carrier gas pipe and reductive agent pipe, and described reductive agent pipe is connected to described reaction block by described peristaltic pump.
4. a kind of sequential injection steam generating system as claimed in claim 3 is characterized in that first port of described gas-liquid separator connects with described reaction block, and its second port is connected with steam pipe, and its 3rd port is connected with the waste liquid remover.
5. a kind of sequential injection steam generating system as claimed in claim 4 is characterized in that, described waste liquid remover comprises the 3rd operation valve that connects with the 3rd port of gas-liquid separator, the sewer pipe that connects with the 3rd operation valve.
6. a kind of sequential injection steam generating system as claimed in claim 5, it is characterized in that described first operation valve, second operation valve and the 3rd operation valve are to have liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
7. a kind of sequential injection steam generating system as claimed in claim 4 is characterized in that described waste liquid remover comprises sewer pipe, and described sewer pipe one end is connected to the 3rd port of described gas-liquid separator, and the other end is connected to described peristaltic pump.
8. a kind of sequential injection steam generating system as claimed in claim 1 is characterized in that, described volume pump is any one in syringe pump, ram pump, membrane pump or the Ceramic piston volume pump with accurate measurement function.
9. a kind of sequential injection steam generating system as claimed in claim 1 is characterized in that, described first operation valve and second operation valve are to have liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
10. a kind of sequential injection steam generating system as claimed in claim 1 is characterized in that described fluid drives module comprises peristaltic pump; Described steam generation module comprises the reaction block that connects with second operation valve, the gas-liquid separator that connects with reaction block; Described reaction block also is connected with carrier gas pipe and reductive agent pipe, and described reductive agent pipe is connected to described reaction block by described peristaltic pump; First port of described gas-liquid separator connects with described reaction block, and its second port is connected with steam pipe, and its 3rd port is connected with the waste liquid remover; Described volume pump is any one in syringe pump, ram pump, membrane pump or the Ceramic piston volume pump with accurate measurement function; Described first operation valve and second operation valve are to have liquid flow path any one in pinch valve, Valve for compressing tubular liner, stop valve or the flow solenoid valve of function.
CN 201220739983 2012-12-31 2012-12-31 Sequential injection steam generation system Active CN203083932U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220739983 CN203083932U (en) 2012-12-31 2012-12-31 Sequential injection steam generation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220739983 CN203083932U (en) 2012-12-31 2012-12-31 Sequential injection steam generation system

Publications (1)

Publication Number Publication Date
CN203083932U true CN203083932U (en) 2013-07-24

Family

ID=48829757

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220739983 Active CN203083932U (en) 2012-12-31 2012-12-31 Sequential injection steam generation system

Country Status (1)

Country Link
CN (1) CN203083932U (en)

Similar Documents

Publication Publication Date Title
CN203216848U (en) Sample injection device of atomic fluorescence spectrometer
US3419358A (en) Automatic analysis apparatus and method
CN202837170U (en) Element morphology analysis flow path system used for being combined with atomic fluorescence
CN202974750U (en) Separation and enrichment system
CN202599841U (en) Sampling device of atomic fluorescence instrument
CN203083932U (en) Sequential injection steam generation system
CN204694509U (en) A kind of halo greenhouse gases flushable type sampling thief
CN202974872U (en) Steam generation and steam-liquid separation system
CN103197086A (en) Microfluidic underground coal mine air monitoring system and method
CN203224443U (en) No-residue steam generating system
CN202033291U (en) Liquid driving sampling device capable of realizing steam reaction under constant voltage and constant current
CN203148960U (en) Coal mine underground air monitoring device based on microfluidic technology
CN102445498B (en) Automatic calibration method of process chromatograph
CN202177577U (en) Sample introduction device for atomic fluorescence spectroscopy
CN202049074U (en) Gas sampling valve plate device
CN202599840U (en) Sample injection device of two-injection-pump contrast ventriculography (CVG) system
CN203720088U (en) Miniature steam generation sample feeding system for portable atomic fluorescence
CN201075081Y (en) Intermittent injection sampling device
CN108037115B (en) Sulfur dioxide detection system and detection method
CN203672896U (en) Sample introduction device with double injection pumps
CN203324189U (en) Sample introduction device of atomic fluorescence spectrometer
CN204439551U (en) For the vapor generation system of atomic fluorescence spectrometer
CN203881725U (en) Double chemical reaction systems for novel liquid chromatography atomic fluorescence combined apparatus
CN213041738U (en) Separation and enrichment residue-free vapor generation system of atomic fluorescence spectrometer
CN107449930A (en) A kind of liquid keeps sample sampler

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: BEIJING HAIGUANG INSTRUMENT CO., LTD.

Free format text: FORMER NAME: HAIGUANG INSTRUMENT CORP, BEIJING

CP01 Change in the name or title of a patent holder

Address after: 100015 M3, 1 East Jiuxianqiao Road, Beijing, Chaoyang District

Patentee after: Beijing Haiguang Instrument Co., Ltd.

Address before: 100015 M3, 1 East Jiuxianqiao Road, Beijing, Chaoyang District

Patentee before: Beijing Kechuang Haiguang Instrument Co., Ltd.