CN113092216A - Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer - Google Patents
Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer Download PDFInfo
- Publication number
- CN113092216A CN113092216A CN202110496560.0A CN202110496560A CN113092216A CN 113092216 A CN113092216 A CN 113092216A CN 202110496560 A CN202110496560 A CN 202110496560A CN 113092216 A CN113092216 A CN 113092216A
- Authority
- CN
- China
- Prior art keywords
- gas
- liquid separation
- liquid
- atmosphere
- absorption spectrometer
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a gas-liquid separation device for a gas-phase molecular absorption spectrometer, which is characterized in that: comprises a gas-liquid separation unit and a liquid collection unit; wherein the gas-liquid separation unit comprises a fluid input port, a gas outlet and a liquid outlet; the liquid collecting unit is communicated with the liquid outlet and comprises an atmosphere control port and a waste liquid discharge port; the atmosphere regulation and control port is communicated with the atmosphere, and the opening position of the atmosphere regulation and control port is provided with a closing mechanism. By modifying the separation structure, the efficiency of the gas-liquid separator in the separation process is improved.
Description
Technical Field
The present invention relates to an element or action unit included in an analysis instrument, and particularly to a gas-liquid separation device and a gas-liquid separation method for a gas phase molecular absorption spectrometer.
Background
The gas-liquid separator is a core device in a gas-phase molecular absorption spectrometer. The purpose of which is to effectively separate gas and liquid. The more complete the separation, the more powerful it is for subsequent measurements, especially at low concentrations. There is an efficiency problem in between. The higher the efficiency of gas-liquid separation, the closer to reality the detection result is.
In addition, for a gas phase molecular absorption spectrometer, the separated gas is the object to be measured, and a reasonable pressure is required to ensure that the gas is quickly, stably and effectively introduced into a forward colorimetric tube as far as possible.
However, the prior art has the following defects:
1. in the existing gas-liquid separation device, because the front of the liquid movement is communicated with the atmosphere under the action of the air pressure balancing port, no resistance exists, and when the flow rate of the input gas-liquid mixture is too high, the liquid can be rapidly discharged. The intermediate portion of the gas is discharged without being separated in time, which results in less gas being collected than the gas obtained in the actual reaction, and thus results in inaccurate results.
2. Because of the existence of the air pressure balancing port in the existing device, the result that the air is quickly and effectively input into the front colorimetric tube cannot be realized due to the fact that the pressure of the air in the pipeline corresponding to the air released through the air outlet is small. Gas fouling may even result, further reducing the efficiency of gas-liquid separation.
Due to the defects, in the prior art, when the gas-liquid separation efficiency is low, the sensitivity, the detection limit and other important indexes of the instrument are affected due to insufficient concentration of the measured gas during the measurement of low concentration and ultra-low concentration.
Disclosure of Invention
The invention aims to overcome the defects, and improves the efficiency of the gas-liquid separator in the separation process by modifying the separation structure, so as to avoid the problem of gas loss caused by over-high liquid flow speed. In addition, the pressure of the gas branch after gas-liquid separation is enhanced, so that the gas can be more effectively guided into the front-end colorimetric tube, and the result of improving the efficiency of guiding the gas into the front-end colorimetric tube is realized. In addition, the structure can also construct a pressure difference between the input end and the liquid branch end, and the pressure difference can be quantitatively controlled as required, so that the effect of reasonable flow rate of the gas branch is obtained.
The invention provides a gas-liquid separation device for a gas-phase molecular absorption spectrometer, which is characterized in that: comprises a gas-liquid separation unit and a liquid collection unit;
wherein, the gas-liquid separation unit comprises a fluid input port, a gas outlet and a liquid outlet;
the liquid collecting unit is communicated with the liquid outlet and comprises an atmosphere control port and a waste liquid discharge port;
the atmosphere control port is communicated with the atmosphere, and the opening position of the atmosphere control port is provided with a closing mechanism.
Further, the invention provides a gas-liquid separation device for a gas phase molecular absorption spectrometer, which is characterized in that: the air regulating port is connected with an air valve;
the air valve is communicated or isolated from the atmosphere.
Further, the invention provides a gas-liquid separation device for a gas phase molecular absorption spectrometer, which is characterized in that: the fluid input port is connected with the power pushing mechanism;
the solution input through the fluid input port is input into the gas-liquid separation unit under the action of the power pushing mechanism.
Further, the invention provides a gas-liquid separation device for a gas phase molecular absorption spectrometer, which is characterized in that: the gas-liquid separation unit further includes a condensing mechanism.
Further, the invention provides a gas-liquid separation device for a gas phase molecular absorption spectrometer, which is characterized in that: the waste liquid discharge port is connected with an output power mechanism.
In addition, the invention also provides a gas-liquid separation method for the gas-phase molecular absorption spectrometer, which is characterized by comprising the following steps:
under the condition that the whole gas-liquid separation device is not communicated with the atmosphere, the pressure difference is formed by regulating and controlling the inflow speed of input fluid and the outflow speed of output liquid, so that gas generated in the gas-liquid separation process leaves the gas-liquid separation device from a specified gas outlet under the action of forward pressure.
Drawings
Fig. 1 is a schematic structural diagram of gas-liquid separation provided in this embodiment.
Wherein the content of the first and second substances,
1 is a fluid input port;
2 is a gas outlet;
3 is an atmosphere connection control port;
4 is a waste liquid outlet;
and 5 is a communication port.
Detailed Description
The embodiment provides a gas-liquid separation device for a gas phase molecular absorption spectrometer, as shown in fig. 1, the gas-liquid separation device comprises a gas-liquid separation unit for performing gas-liquid separation, and a liquid separation unit for performing liquid separation and discharge;
the main part of the gas-liquid separation unit is a separation pipe structure;
above this separator tube, have gas outlet 2, the gas that accomplishes the separation is followed closely equipment from this gas outlet 2, if: a colorimetric cylinder, etc.;
the side of the separation pipe is provided with a fluid input port 1, and the fluid input port 1 is connected with an input power device, such as: the pump and the carrier gas conveying device are used for conveying fluid substances such as mixed liquid or carrier gas into the separation pipe;
the main structure of the separator tube, i.e. the tube extending from the fluid inlet 1 to the gas outlet 2, has a condensation function, such as: similar to the structure of the condensation pipe.
Below the separation tube, there is a liquid outlet connected to a passage, the end of which, i.e. the communication port 5, is located in the liquid separation unit;
the communication port 5 is attached to the bottom surface of the liquid separation unit as much as possible, so that the separated liquid can be introduced into the liquid separation unit as much as possible;
the liquid separation unit is provided with an atmosphere connection control port 3, the atmosphere connection control port 3 is provided with a valve, and the opening and closing of the valve are controlled to realize that whether the internal environment of the whole separation system is communicated with the atmosphere or not.
The liquid separation unit is also provided with a waste liquid outlet 4;
a fluid pipe leading into the liquid separation unit is arranged in the waste liquid outlet 4;
the outlet of the fluid pipeline in the liquid separation unit is attached to the bottom surface of the liquid separation unit as much as possible, so that the liquid can be led out as much as possible;
the other end of the fluid pipeline penetrates out of the liquid separation unit through a waste liquid outlet 4, and the tail end of the fluid pipeline is connected with a liquid pump, so that waste liquid in the liquid separation unit can be continuously led out through the liquid pump.
The specific working mode is as follows:
the gas-liquid separation device provided by the embodiment has the following two operation modes:
mode one, forward no pressure mode: when the air valve connected with the atmosphere connection control port 3 is opened, the atmosphere connection control port 3 is used as an air pressure balancing port, and the gas-liquid separator works in a forward non-pressure mode.
Mode two forward pressure controlled mode: when the gas valve connected to the atmosphere connection control port 3 is closed, a pressure difference between the input and output ends is formed in the gas-liquid separator by adjusting the input speed of the input fluid connected to the input port 1 and the speed of the pump connected to the waste liquid output port 4. Meanwhile, the gas pressure of the gas output port 2 follows the pressure difference between the input port 1 and the waste liquid output port 4, so that the purpose of adjusting the gas pressure is achieved.
Claims (6)
1. A gas-liquid separation device for a gas phase molecular absorption spectrometer is characterized in that: comprises a gas-liquid separation unit and a liquid collection unit;
wherein the gas-liquid separation unit comprises a fluid input port, a gas outlet and a liquid outlet;
the liquid collecting unit is communicated with the liquid outlet and comprises an atmosphere control port and a waste liquid discharge port;
the atmosphere regulation and control port is communicated with the atmosphere, and the opening position of the atmosphere regulation and control port is provided with a closing mechanism.
2. A gas-liquid separation apparatus for a gas phase molecular absorption spectrometer as claimed in claim 1, wherein:
the atmosphere regulating port is connected with the air valve;
the air valve is communicated with or isolated from the atmosphere.
3. A gas-liquid separation apparatus for a gas phase molecular absorption spectrometer as claimed in claim 1, wherein:
the fluid input port is connected with the power pushing mechanism;
and the solution input through the fluid input port is input into the gas-liquid separation unit under the action of the power pushing mechanism.
4. A gas-liquid separation apparatus for a gas phase molecular absorption spectrometer as claimed in claim 1, wherein:
the gas-liquid separation unit is also provided with a condensation mechanism.
5. A gas-liquid separation apparatus for a gas phase molecular absorption spectrometer as claimed in claim 1, wherein:
and the waste liquid discharge port is connected with an output power mechanism.
6. A gas-liquid separation method for a gas phase molecular absorption spectrometer is characterized in that:
under the condition that the whole gas-liquid separation device is not communicated with the atmosphere, the pressure difference is formed by regulating and controlling the inflow speed of input fluid and the outflow speed of output liquid, so that gas generated in the gas-liquid separation process leaves the gas-liquid separation device from a specified gas outlet under the action of forward pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110496560.0A CN113092216A (en) | 2021-05-07 | 2021-05-07 | Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110496560.0A CN113092216A (en) | 2021-05-07 | 2021-05-07 | Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113092216A true CN113092216A (en) | 2021-07-09 |
Family
ID=76681671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110496560.0A Pending CN113092216A (en) | 2021-05-07 | 2021-05-07 | Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113092216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984691A (en) * | 2021-10-29 | 2022-01-28 | 上海安杰环保科技股份有限公司 | Waste gas and waste liquid centralized collecting and discharging module for gas-phase molecular absorption spectrometer |
-
2021
- 2021-05-07 CN CN202110496560.0A patent/CN113092216A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984691A (en) * | 2021-10-29 | 2022-01-28 | 上海安杰环保科技股份有限公司 | Waste gas and waste liquid centralized collecting and discharging module for gas-phase molecular absorption spectrometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102401834B (en) | Multi-channel on-line sampling and sample introducing method for high-temperature high-thickness liquid material | |
| CN107209090B (en) | Exhaust gas sampling system and method for operating such an exhaust gas sampling system | |
| CN101241063B (en) | Cigarette flue gas aerosol grain size distribution detection method | |
| CN103364461B (en) | Online water heavy metal analyzer | |
| CN201191278Y (en) | Polypropylene on-line gas analysis system | |
| CN113092216A (en) | Gas-liquid separation device and gas-liquid separation method for gas-phase molecular absorption spectrometer | |
| CN102788762A (en) | Syringe pump sample injection gas phase molecule absorption spectrometer | |
| CN201043939Y (en) | Sampling system used for on-line spectrum analysis during Chinese medicine extraction course | |
| CN215448674U (en) | Gas-liquid separation device for gas-phase molecular absorption spectrometer | |
| CN103674668B (en) | Pollutant online pre-separation enriching apparatus in a kind of water sample with bulk mass | |
| CN104730216B (en) | A kind of analysis metering device and liquid analysis system | |
| CN201034987Y (en) | Gas chromatograph gas analysis twice sample introduction device | |
| CN202661372U (en) | Injection pump sample introduction gas phase molecule absorption spectrometer | |
| CN205157280U (en) | Automatic preprocessing device of logging sample gas | |
| CN109765275B (en) | Method and device for rapidly detecting hydrogen sulfide content of crude oil on line outdoors | |
| CN111239065A (en) | Traditional Chinese medicine extraction online detection system and method | |
| CN109444348A (en) | A kind of high-purity ammon products detection system and its detection method | |
| CN202974872U (en) | Steam generation and steam-liquid separation system | |
| CN104764860B (en) | A kind of analysis metering device and liquid analysis system | |
| CN205262802U (en) | Gas analysis sampling device | |
| CN201322743Y (en) | Quantitative testing device of dissolved gases in transformer oil based on MEMS technology | |
| CN111307518B (en) | Fixed vertical water sample collection device based on hydrodynamic force change and sampling method | |
| CN201133890Y (en) | System for cigarette flue gas aerosol detection | |
| CN210051719U (en) | Automatic on-line detection device for crude oil hydrogen sulfide | |
| CN209247624U (en) | A kind of water quality mercury online auto monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |