CN102967663A - Ion chromatograph with automatic activation device - Google Patents
Ion chromatograph with automatic activation device Download PDFInfo
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- CN102967663A CN102967663A CN2012104290729A CN201210429072A CN102967663A CN 102967663 A CN102967663 A CN 102967663A CN 2012104290729 A CN2012104290729 A CN 2012104290729A CN 201210429072 A CN201210429072 A CN 201210429072A CN 102967663 A CN102967663 A CN 102967663A
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- ion chromatograph
- temperature
- separating column
- automatic activation
- signal
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Abstract
The invention provides an ion chromatograph with an automatic activation device, and solves the problems that a flow path system of an ion chromatograph of the prior art requires a specially-assigned person for timing staring maintenance in a shutdown state and that a separation column is easily frozen. The ion chromatograph comprises a separation column box, a separation column inside the separation column box, a conductivity detector, a suppressor, a signal acquisition device, a constant flow pump and an automatic activation device. The automatic activation device comprises a liquid storage bottle and a timer; when the automatic activation conditions are met, an activation signal is output to open the constant flow pump. The ion chromatograph provided by the invention can automatically start the flow path system in the shutdown state, and leacheate stored in the liquid storage bottle can flow into the entire flow path system, thus effectively protecting the entire flow path system; besides, protection on the separation column can be completed in a state of low temperature to save energy, and realize high degree of automation, thereby reducing application cost of the equipment.
Description
Technical field
The present invention relates to automated analysis and control field, particularly a kind of ion chromatograph.
Background technology
Ion chromatograph of the prior art comprises: separating column, electric conductivity detector, rejector and signal picker in constant flow pump, separating column case, the separating column case.Under stopped status, need special messenger's timing start-up to safeguard, make the leacheate whole flow path system of flowing through; And, under the stopped status separating column there is not good safeguard measure, so that separating column is affected by extraneous low temperature environment easily under the ion chromatograph stopped status, can freezing separating column, electric conductivity detector and rejector when serious.
Summary of the invention
The present invention proposes a kind of ion chromatograph, and the ion chromatograph flow path system under stopped status that has solved prior art needs the problem that special messenger's timing start-up is safeguarded and separating column easily is damaged by frost.
Technical scheme of the present invention is achieved in that
A kind of ion chromatograph, comprise: separating column, electric conductivity detector, rejector, signal picker and constant flow pump in separating column case, the separating column case, also comprise the automatic activation device, described automatic activation device comprises: store the liquid storage bottle of leacheate, be connected to described constant flow pump; Timer stores default automatic activation time conditions, and when the automatic activation time conditions arrived, the output activation signal was opened described constant flow pump.
Alternatively, also comprise constant temperature system, described constant temperature system comprises: the temperature sensor that is used for measuring described separating column the temperature inside the box; Temperature measurement signal to temperature sensor output carries out the amplifying signal amplifier; To be converted to through the temperature measurement signal that signal amplifies the analog to digital converter of digital signal; Controller is compared the output temperature control signal with the temperature measurement signal of digital form with default upper temperature limit and lowest temperature; Be distributed in the calandria on the described separating column box body, turn on and off according to temperature control signals.
Alternatively, described temperature sensor is thermistor.
Alternatively, described temperature sensor is arranged in the case of described separating column case.
Alternatively, the quantity of described calandria is one, is distributed in the surface of described separating column case.
Alternatively, the quantity of described calandria is a plurality of, is distributed in separating column case surface.
Alternatively, described controller is single-chip microcomputer.
Alternatively, described controller is dsp processor.
The invention has the beneficial effects as follows:
(1) automatically starts flow path system under the stopped status, make the leacheate that is stored in advance in the liquid storage bottle flow to whole flow path system, thereby more effectively protect whole flow path system;
(2) can finish protection to separating column at low-temperature condition, and save the energy, automaticity is high, thereby reduces the utilization cost of equipment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit block diagram of a kind of ion chromatograph with the automatic activation device of the present invention;
Fig. 2 is the circuit block diagram of constant temperature system among Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Existing ion chromatograph; comprise: separating column, electric conductivity detector, rejector and signal picker in constant flow pump, separating column case, the separating column case; under stopped status, need special messenger's timing start-up to safeguard; make the leacheate whole flow path system of flowing through, and separating column is not had good safeguard measure.
Ion chromatograph of the present invention also comprises the automatic activation device, and as shown in Figure 1, the automatic activation device comprises: store the liquid storage bottle 10 of leacheate, be connected to constant flow pump 20; Timer 30, store default automatic activation condition, when the automatic activation condition arrived, the output activation signal was opened constant flow pump 20, make the leacheate that is stored in advance in the liquid storage bottle 10 flow to whole flow path system 40, for example the automatic activation condition can be that timing time arrives.The automatic activation device can make ion chromatograph automatically start flow path system 40 under stopped status, thereby more effectively protects whole flow path system 40.
Ion chromatograph of the present invention also comprises constant temperature system 50, and constant temperature system 50 is connected to the separating column case 401 in the flow path system 40.
Fig. 2 is the circuit block diagram of constant temperature system among Fig. 1.As shown in Figure 2, constant temperature system comprises: the temperature sensor 510 that is used for measuring separating column the temperature inside the box; Temperature measurement signal to temperature sensor 510 outputs carries out signal amplifying signal amplifier 520; To be converted to through the temperature measurement signal that signal amplifies the analog to digital converter 530 of digital signal; Controller 540 is compared the output temperature control signal with the temperature measurement signal of digital form with default upper temperature limit and lowest temperature; Be distributed in the calandria 550 on the separating column box body, turn on and off according to temperature control signals.
When ion chromatograph is in stopped status, the temperature control system plugged, be in holding state, the temperature sensor 510 of constant temperature system is connected in the separating column case, when ambient temperature excessively low, when causing drop in temperature in the separating column case to default lowest temperature, controller 540 startup calandrias 550 heat the separating column case; After separating column the temperature inside the box reached default upper temperature limit, controller 540 cut out calandria 550, and stopped heating enters holding state; When the temperature in the separating column case drops to default lowest temperature again, controller 540 will start calandria 550 again, repeat said process and can finish under the ion chromatograph stopped status to separating column electric conductivity detector, the protection of rejector.
Preferably, temperature sensor 510 has the device of temperature sensing function for thermistor or other, is arranged in the case of separating column case.The quantity of calandria is not limit, and it also can be a plurality of can being one, is distributed in separating column case surface, and calandria can be any thermal objects, for example silica gel heating band.The controller of ion chromatograph of the present invention can be single-chip microcomputer, storing temperature upper limit numerical value and lowest temperature numerical value in the storer of single-chip microcomputer, and comparer is compared the output temperature control signal with the temperature measurement signal of digital form with upper temperature limit and lowest temperature.Controller can also be dsp processor, arm processor or other digitial controllers.
Ion chromatograph of the present invention starts flow path system automatically under stopped status; make the leacheate that is stored in advance in the liquid storage bottle be left to whole flow path system; thereby more effectively protect whole flow path system; and can finish protection to separating column at low-temperature condition; and the saving energy; automaticity is high, thereby reduces the utilization cost of equipment.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. ion chromatograph, comprise: separating column, electric conductivity detector, rejector, signal picker and constant flow pump in separating column case, the separating column case, it is characterized in that, also comprise the automatic activation device, described automatic activation device comprises: store the liquid storage bottle of leacheate, be connected to described constant flow pump; Timer stores default automatic activation condition, and when the automatic activation condition arrived, the output activation signal was opened described constant flow pump.
2. ion chromatograph as claimed in claim 1 is characterized in that, also comprises constant temperature system, and described constant temperature system comprises: the temperature sensor that is used for measuring described separating column case temperature; Temperature measurement signal to temperature sensor output carries out the amplifying signal amplifier; To be converted to through the temperature measurement signal that signal amplifies the analog to digital converter of digital signal; Controller is compared the output temperature control signal with the temperature measurement signal of digital form with default upper temperature limit and lowest temperature; Be distributed in the calandria on the described separating column box body, turn on and off according to temperature control signals.
3. ion chromatograph as claimed in claim 2 is characterized in that, described temperature sensor is thermistor.
4. ion chromatograph as claimed in claim 3 is characterized in that, described temperature sensor is arranged in the case of described separating column case.
5. ion chromatograph as claimed in claim 4 is characterized in that, the quantity of described calandria is one, is distributed in separating column case surface.
6. ion chromatograph as claimed in claim 4 is characterized in that, the quantity of described calandria is a plurality of, is distributed in separating column case surface.
7. such as each described ion chromatograph of claim 2 to 6, it is characterized in that described controller is single-chip microcomputer.
8. such as each described ion chromatograph of claim 2 to 6, it is characterized in that described controller is dsp processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104290729A CN102967663A (en) | 2012-10-31 | 2012-10-31 | Ion chromatograph with automatic activation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104290729A CN102967663A (en) | 2012-10-31 | 2012-10-31 | Ion chromatograph with automatic activation device |
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| CN102967663A true CN102967663A (en) | 2013-03-13 |
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| CN2012104290729A Pending CN102967663A (en) | 2012-10-31 | 2012-10-31 | Ion chromatograph with automatic activation device |
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Citations (7)
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| JPH11201957A (en) * | 1998-01-16 | 1999-07-30 | Yokogawa Electric Corp | Thermostat |
| CN1815219A (en) * | 2006-01-24 | 2006-08-09 | 南京工业大学 | Inlaid integrated industrial chromatograph detection-control system |
| CN101271094A (en) * | 2008-05-15 | 2008-09-24 | 宁波科宁达工业有限公司 | Zwitterion analysis system of ion chromatographic instrument |
| EP0868664B1 (en) * | 1995-12-19 | 2009-12-09 | Dionex Corporation | Multi-cycle loop injection for trace analysis by ion chromatography apparatus and method |
| CN101718753A (en) * | 2009-11-10 | 2010-06-02 | 浙江大学 | Ion chromatography single-pump column switching system |
| CN102539568A (en) * | 2011-12-31 | 2012-07-04 | 杭州市质量技术监督检测院 | Ion chromatography method for detecting iodate and bromate in cosmetic |
| CN202974958U (en) * | 2012-10-31 | 2013-06-05 | 青岛轩汇仪器设备有限公司 | Ion chromatograph with automatic activation device |
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2012
- 2012-10-31 CN CN2012104290729A patent/CN102967663A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0868664B1 (en) * | 1995-12-19 | 2009-12-09 | Dionex Corporation | Multi-cycle loop injection for trace analysis by ion chromatography apparatus and method |
| JPH11201957A (en) * | 1998-01-16 | 1999-07-30 | Yokogawa Electric Corp | Thermostat |
| CN1815219A (en) * | 2006-01-24 | 2006-08-09 | 南京工业大学 | Inlaid integrated industrial chromatograph detection-control system |
| CN101271094A (en) * | 2008-05-15 | 2008-09-24 | 宁波科宁达工业有限公司 | Zwitterion analysis system of ion chromatographic instrument |
| CN101718753A (en) * | 2009-11-10 | 2010-06-02 | 浙江大学 | Ion chromatography single-pump column switching system |
| CN102539568A (en) * | 2011-12-31 | 2012-07-04 | 杭州市质量技术监督检测院 | Ion chromatography method for detecting iodate and bromate in cosmetic |
| CN202974958U (en) * | 2012-10-31 | 2013-06-05 | 青岛轩汇仪器设备有限公司 | Ion chromatograph with automatic activation device |
Non-Patent Citations (2)
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| 《色谱》 19900331 吕伟 等 "计算机控制离子色谱仪分级淋洗技术" 第190-192页 1-8 第8卷, 第3期 * |
| 吕伟 等: ""计算机控制离子色谱仪分级淋洗技术"", 《色谱》 * |
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Application publication date: 20130313 |