CN103018165A - Infrared gas sensor for measuring supersaturated steam - Google Patents
Infrared gas sensor for measuring supersaturated steam Download PDFInfo
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- CN103018165A CN103018165A CN2012105397140A CN201210539714A CN103018165A CN 103018165 A CN103018165 A CN 103018165A CN 2012105397140 A CN2012105397140 A CN 2012105397140A CN 201210539714 A CN201210539714 A CN 201210539714A CN 103018165 A CN103018165 A CN 103018165A
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Abstract
The invention provides an infrared gas sensor for measuring supersaturated steam. The infrared gas sensor comprises a microprocessor circuit, an infrared light source, a measuring chamber with an air inlet and an air outlet, an infrared gas detector, a signal processing circuit, a power circuit and supersaturated steam gasification equipment, wherein the supersaturated steam gasification equipment comprises a gasification chamber with the air inlet and the air outlet, a heating body and a heating control circuit; the heating body and the heating control circuit are arranged on the gasification chamber or inside the gasification chamber; the air outlet of the gasification chamber is connected to the air inlet of the measuring chamber; the microprocessor circuit is connected to the heating body through the heating control circuit, so as to control on/off of power supply of the heating body or power supply current. The infrared gas sensor is scientific and reasonable in design, strong in circuit controllability, high in measurement accuracy, stable in performance and suitable for circulating detection; and rapid and efficient detection is facilitated.
Description
Technical field
The present invention relates to a kind of infrared gas sensor, specifically, related to a kind of infrared gas sensor of measuring supersaturated vapour.
Background technology
Infrared gas sensor is owing to having the characteristics such as measuring accuracy is high, reliability is high, antijamming capability is strong, anti-poisoning, life-span length, be used widely at the gas concentration detection field, especially along with in recent years further research, the technology of infrared gas sensor reaches its maturity; But, in actual applications, find that still it exists some problems and needs to be resolved hurrily, for example, existing infrared gas sensor can't be measured the concentration of supersaturation organic steam.
Under the normal temperature and pressure, the organic solution formation organic steam that all can volatilize, and most of organic steam all is harmful to human body; The measuring principle of infrared gas sensor is can only measurement gas, for oversaturated liquid-vapor mixture, not only can not measure, and also can affect sensor performance in the optical path because liquid particle condenses in.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, thereby provide that a kind of design science, measuring accuracy are high, stable performance, controllability are good, the infrared gas sensor of the measurement supersaturated vapour that is suitable for cycle detection.
To achieve these goals, the technical solution adopted in the present invention is: a kind of infrared gas sensor of measuring supersaturated vapour, comprise microcontroller circuit, infrared light supply, measurement air chamber with air intake opening and gas outlet, infrared gas detector, signal processing circuit, power circuit and supersaturated vapour gasification installation, described supersaturated vapour gasification installation comprises the gasification cavity with air intake opening and gas outlet, be arranged on the described gasification cavity or described gasification cavity in calandria and heating control circuit, the gas outlet of described gasification cavity connects the air intake opening of described measurement air chamber, and described microcontroller circuit connects described calandria by described heating control circuit in order to control power supply break-make or the supply current of described calandria.
Based on above-mentioned, described supersaturated vapour gasification installation also comprise be arranged on the described gasification cavity or described gasification cavity in temperature sensor, described microcontroller circuit connects described temperature sensor in order to gather the gasification temperature signal, and described microcontroller circuit connects described calandria by described heating control circuit so that according to power supply break-make or the supply current of the described calandria of described gasification temperature signal controlling.
Based on above-mentioned, described supersaturated vapour gasification installation also comprises air feed pump and air feed pump control circuit, described air feed delivery side of pump connects the air intake opening of described gasification cavity, and described microcontroller circuit connects described air feed pump in order to control power supply break-make or the supply current of described air feed pump by described air feed pump control circuit.
Based on above-mentioned, it also comprises measures air chamber air cleaning pump and scavenging pump control circuit, described measurement air chamber air cleaning delivery side of pump connects the air intake opening of described measurement air chamber, and described microcontroller circuit connects described measurement air chamber air cleaning pump in order to control power supply break-make or the supply current of described measurement air chamber air cleaning pump by described scavenging pump control circuit.
Based on above-mentioned, described measurement air chamber air cleaning delivery side of pump connects the air intake opening of described measurement air chamber by controlled valve, and described microcontroller circuit connects described controlled valve in order to control the break-make of described controlled valve.
Based on above-mentioned, described measurement air chamber air cleaning pump is that outlet is with the air pump of internally piloted valve.
The relative prior art of the present invention has outstanding substantive distinguishing features and marked improvement, and specifically, this infrared gas sensor has the following advantages:
1, the principle that this infrared gas sensor organic steam saturation concentration that volatilization forms according to organic liquid is directly proportional with temperature, by the supersaturated vapour gasification installation supersaturated vapour is heated, improve the temperature of liquid-vapor mixture, and make liquid-vapor mixture evaporate into gas fully, then, again the gas that is gasified totally is passed into and measure the gas concentration infrared detection that air chamber carries out routine, namely, utilize existing, ripe infrared gas detection technology, under the prerequisite that does not affect accuracy of detection, thoroughly solve the problem that infrared gas sensor in the prior art can't detect gas-liquid mixture, expanded the application of infrared gas sensor.
2, this infrared gas sensor is by measuring air chamber air cleaning pump and scavenging pump control circuit, automatically remove raffinate or residual gas in the sensor gas circuit, that may condense, guaranteed the stable of the measuring accuracy of sensor and performance, it is had can be fast, the function of duplicate detection.
3, this infrared gas sensor design science, rationally, the controllability of circuit is strong, is beneficial to fast and efficiently and detects, and it has advantages of, and measuring accuracy is high, stable performance, be suitable for cycle detection.
Description of drawings
Fig. 1 is the structural representation of infrared gas sensor described in the embodiment 1.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
As shown in Figure 1, a kind of infrared gas sensor of measuring supersaturated vapour, comprise microcontroller circuit, infrared light supply, have air intake opening and gas outlet measurement air chamber 1, infrared gas detector, signal processing circuit, power circuit, supersaturated vapour gasification installation, measure air chamber air cleaning pump 5 and scavenging pump control circuit, wherein, described signal processing circuit comprises signal amplification circuit, filtering circuit and A/D convertor circuit.
Described supersaturated vapour gasification installation comprises gasification cavity 2 with air intake opening and gas outlet, be arranged on the described gasification cavity 2 or described gasification cavity 2 in calandria 3, heating control circuit, air feed pump 4 and air feed pump control circuit.
The gas outlet of described gasification cavity 2 connects the air intake opening of described measurement air chamber 1, and described microcontroller circuit connects described calandria 3 in order to control power supply break-make or the supply current of described calandria 3 by described heating control circuit.
The outlet of described air feed pump 4 connects the air intake opening of described gasification cavity 2, and described microcontroller circuit connects described air feed pump 4 in order to control power supply break-make or the supply current of described air feed pump 4 by described air feed pump control circuit.
The outlet of described measurement air chamber air cleaning pump 5 connects the air intake opening of described measurement air chamber 1, and described microcontroller circuit connects described measurement air chamber air cleaning pump 5 in order to control power supply break-make or the supply current of described measurement air chamber air cleaning pump 5 by described scavenging pump control circuit.
Described measurement air chamber air cleaning pump 5 is that outlet is with the air pump of internally piloted valve; When air pump was idle, internally piloted valve was closed voluntarily, in order to avoid enter the accuracy of detection of measuring the air chamber air and then affecting supersaturated vapour from air pump in the supersaturated vapour testing process; In the time of air pump work, internally piloted valve is opened voluntarily, so that air enters the measurement air chamber smoothly.Of particular note, in other embodiments, in order to realize aforementioned functional, also can adopt such structure: described measurement air chamber air cleaning delivery side of pump connects the air intake opening of described measurement air chamber by controlled valve, described microcontroller circuit connects described controlled valve in order to control the break-make of described controlled valve.
Before the measurement, microcontroller circuit heats the gasification cavity by heating control circuit control calandria, the temperature of cavity to be gasified reaches requirement, then microcontroller circuit supplies defeated supersaturated vapour to be measured by air feed pump control circuit control air feed pump in the gasification cavity, supersaturated vapour is gasified totally through the gasification cavity, and enters the gas concentration infrared test that the measurement air chamber is finished routine; This cycle is completed, and microcontroller circuit is sent into pure air by scavenging pump control circuit control survey air chamber air cleaning pump to measuring air chamber, in order to discharge residual gas, to treat the detection in next cycle.
The present embodiment mainly is from the different of embodiment 1: described supersaturated vapour gasification installation also comprise be arranged on the described gasification cavity or described gasification cavity in temperature sensor, described microcontroller circuit connects described temperature sensor in order to gather the gasification temperature signal, and described microcontroller circuit connects described calandria by described heating control circuit so that according to power supply break-make or the supply current of the described calandria of described gasification temperature signal controlling.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (9)
1. infrared gas sensor of measuring supersaturated vapour, comprise microcontroller circuit, infrared light supply, measurement air chamber with air intake opening and gas outlet, infrared gas detector, signal processing circuit and power circuit, it is characterized in that: it also comprises the supersaturated vapour gasification installation, described supersaturated vapour gasification installation comprises the gasification cavity with air intake opening and gas outlet, be arranged on the described gasification cavity or described gasification cavity in calandria and heating control circuit, the gas outlet of described gasification cavity connects the air intake opening of described measurement air chamber, and described microcontroller circuit connects described calandria by described heating control circuit in order to control power supply break-make or the supply current of described calandria.
2. the infrared gas sensor of measurement supersaturated vapour according to claim 1, it is characterized in that: described supersaturated vapour gasification installation also comprise be arranged on the described gasification cavity or described gasification cavity in temperature sensor, described microcontroller circuit connects described temperature sensor in order to gather the gasification temperature signal, and described microcontroller circuit connects described calandria by described heating control circuit so that according to power supply break-make or the supply current of the described calandria of described gasification temperature signal controlling.
3. the infrared gas sensor of measurement supersaturated vapour according to claim 1 and 2, it is characterized in that: described supersaturated vapour gasification installation also comprises air feed pump and air feed pump control circuit, described air feed delivery side of pump connects the air intake opening of described gasification cavity, and described microcontroller circuit connects described air feed pump in order to control power supply break-make or the supply current of described air feed pump by described air feed pump control circuit.
4. the infrared gas sensor of measurement supersaturated vapour according to claim 1 and 2, it is characterized in that: it also comprises measures air chamber air cleaning pump and scavenging pump control circuit, described measurement air chamber air cleaning delivery side of pump connects the air intake opening of described measurement air chamber, and described microcontroller circuit connects described measurement air chamber air cleaning pump in order to control power supply break-make or the supply current of described measurement air chamber air cleaning pump by described scavenging pump control circuit.
5. the infrared gas sensor of measurement supersaturated vapour according to claim 3, it is characterized in that: it also comprises measures air chamber air cleaning pump and scavenging pump control circuit, described measurement air chamber air cleaning delivery side of pump connects the air intake opening of described measurement air chamber, and described microcontroller circuit connects described measurement air chamber air cleaning pump in order to control power supply break-make or the supply current of described measurement air chamber air cleaning pump by described scavenging pump control circuit.
6. the infrared gas sensor of measurement supersaturated vapour according to claim 4, it is characterized in that: described measurement air chamber air cleaning delivery side of pump connects the air intake opening of described measurement air chamber by controlled valve, described microcontroller circuit connects described controlled valve in order to control the break-make of described controlled valve.
7. the infrared gas sensor of measurement supersaturated vapour according to claim 5, it is characterized in that: described measurement air chamber air cleaning delivery side of pump connects the air intake opening of described measurement air chamber by controlled valve, described microcontroller circuit connects described controlled valve in order to control the break-make of described controlled valve.
8. the infrared gas sensor of measurement supersaturated vapour according to claim 4 is characterized in that: described measurement air chamber air cleaning pump is that outlet is with the air pump of internally piloted valve.
9. the infrared gas sensor of measurement supersaturated vapour according to claim 5 is characterized in that: described measurement air chamber air cleaning pump is that outlet is with the air pump of internally piloted valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105397140A CN103018165A (en) | 2012-12-14 | 2012-12-14 | Infrared gas sensor for measuring supersaturated steam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105397140A CN103018165A (en) | 2012-12-14 | 2012-12-14 | Infrared gas sensor for measuring supersaturated steam |
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| CN103018165A true CN103018165A (en) | 2013-04-03 |
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| CN2012105397140A Pending CN103018165A (en) | 2012-12-14 | 2012-12-14 | Infrared gas sensor for measuring supersaturated steam |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993017324A1 (en) * | 1992-02-19 | 1993-09-02 | Procal Analytics Ltd. | Method and apparatus for analysing liquids |
| CN101514960A (en) * | 2009-03-23 | 2009-08-26 | 吉林市中准仪表开发有限责任公司 | SF* detecting system based on photoacoustic spectroscopic technology |
| CN102183482A (en) * | 2011-02-23 | 2011-09-14 | 中国科学院安徽光学精密机械研究所 | Non-disperse infrared multi-component flue gas analyzer |
-
2012
- 2012-12-14 CN CN2012105397140A patent/CN103018165A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993017324A1 (en) * | 1992-02-19 | 1993-09-02 | Procal Analytics Ltd. | Method and apparatus for analysing liquids |
| CN101514960A (en) * | 2009-03-23 | 2009-08-26 | 吉林市中准仪表开发有限责任公司 | SF* detecting system based on photoacoustic spectroscopic technology |
| CN102183482A (en) * | 2011-02-23 | 2011-09-14 | 中国科学院安徽光学精密机械研究所 | Non-disperse infrared multi-component flue gas analyzer |
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Application publication date: 20130403 |