CN209858320U - Pretreatment system for detecting content of carbon dioxide in ship tail gas - Google Patents
Pretreatment system for detecting content of carbon dioxide in ship tail gas Download PDFInfo
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- CN209858320U CN209858320U CN201920323944.0U CN201920323944U CN209858320U CN 209858320 U CN209858320 U CN 209858320U CN 201920323944 U CN201920323944 U CN 201920323944U CN 209858320 U CN209858320 U CN 209858320U
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Abstract
The utility model discloses a pretreatment systems for boats and ships tail gas carbon dioxide content detects, it contains: adopting a component; an analyzer pre-processing unit; and a heat tracing pipeline connecting the sampling probe and the analyzer preprocessing unit; wherein, the adoption subassembly contains: a sampling probe, a sample receiving chamber, and a heating element; the analyzer pre-treatment unit comprises a rapid condensing device and a filtering device, the gas outlet of which is connected to the analyzer. The utility model discloses a sampling subassembly with heating function takes and treats the analysis sample and heats it, makes water vaporization, and rethread heat tracing pipe way input to condenser condensation rapidly, removes moisture, removes through filtering and treats tiny foreign particles again, ensures to treat the validity and the objectivity of analysis sample before sending to the analysis appearance. The utility model provides a pretreatment systems simple structure, convenient operation can pretreat the sample of waiting to analyze fast effectively, is applicable to the carbon dioxide detection of the tail gas of high temperature and high humidity.
Description
Technical Field
The utility model relates to a gas analysis technical field, concretely relates to a pretreatment systems for boats and ships tail gas carbon dioxide content detects.
Background
For example, CN102998406A discloses a method for detecting the content of carbon dioxide in natural gas, which adopts the following technical scheme: the content of the carbon dioxide of the component to be detected can obtain good separation effect on the GDX-502 packed column to present special signals, and the signals are detected by a Helium Ion Detector (HID) and simultaneously form an obvious absorption peak, and practice shows that the peak area of the formed content of the carbon dioxide is in direct proportion to the content of the carbon dioxide; making the peak area and content of carbon dioxide in standard gas into a standard working curve, taking a natural gas sample steel cylinder, connecting a special stainless steel pipe and a needle valve to a gas chromatograph for detection to obtain a corresponding peak area, and calling the prepared carbon dioxide standard curve, wherein an instrument can directly read and calculate CO in the natural gas sample by an external standard method2The content of (a).
However, for gas mixtures with high humidity and high temperature, such as ship exhaust gases, conventional sensors cannot measure directly or accurately.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pretreatment systems of boats and ships tail gas carbon dioxide content detection to overcome the carbon dioxide content of traditional sensor can not the direct measurement tail gas of high temperature and high humidity.
In order to achieve the above object, the utility model provides a pretreatment systems of boats and ships tail gas carbon dioxide content detection, this pretreatment systems contains:
adopting a component;
an analyzer pre-processing unit;
and a heat tracing pipeline connecting the sampling probe and the analyzer preprocessing unit;
wherein, the adoption subassembly contains: the sampling probe, the sample containing cavity and the heating element are used for heating the sample containing cavity; the analyzer pretreatment unit comprises a rapid condensation device and a filtering device which are communicated through a pipeline, and a gas outlet of the filtering device is connected to the analyzer.
Preferably, the application assembly further comprises: and the temperature controller is used for controlling the heating temperature of the sample to be analyzed.
Preferably, the sample to be analyzed is taken from ship exhaust.
Preferably, the adoption component is further connected with a flushing device through a pipeline, and the flushing device comprises a manual valve for controlling compressed air to enter the pipeline, a filter screen and a forward flushing valve for controlling compressed air to enter the adoption component.
Preferably, the heat tracing pipeline is provided with a heat tracing band.
Preferably, a temperature controller is further arranged in the heat-tracing pipeline.
Preferably, the rapid condensing device is a compressor condensing unit.
Preferably, the rapid condensation device is at least two condensers which are arranged in series.
The utility model provides a pretreatment system, through the sampling subassembly that has the heating function, take and wait to analyze the sample and heat it (this heating temperature adjusts according to the temperature controller setting, and different area pressure is different, and the setting temperature is also different), make water vaporization, take out the heat tracing pipeline, carry out the preliminary treatment again (contain condensation and filtration), through condenser rapid condensation (rapid condensation within 1 second), guarantee that carbon dioxide is not absorbed by water, make carbon dioxide content not receive the loss; then, fine impurity particles in the sample to be analyzed are removed through filtering, and the effectiveness and objectivity of the sample to be analyzed before being sent to the analyzer are guaranteed. The utility model provides a pretreatment systems and pretreatment methods, simple structure, convenient operation can pretreat the pending analysis sample fast effectively, is applicable to the carbon dioxide detection of the tail gas of high temperature and high humidity.
Drawings
Fig. 1 is a schematic structural diagram of a pretreatment system for detecting the carbon dioxide content in the ship tail gas of the present invention.
Fig. 2 is a flowchart of a pretreatment method for detecting the carbon dioxide content in the ship exhaust according to the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
As shown in FIG. 1, for the utility model provides a pretreatment system for detecting the carbon dioxide content in the ship tail gas, which comprises: a heat tracing pipeline 20 connecting the assembly 10 and the analyzer pretreatment unit; wherein, this analysis appearance preprocessing unit contains quick condensing equipment and the filter equipment through the pipeline intercommunication, and the gas outlet of this filter equipment is connected to the analysis appearance.
The adoption assembly 10 comprises: a sampling probe 11, a sample-accommodating chamber 12, a heating element 13 for heating the sample-accommodating chamber, and a temperature controller 14 for controlling the heating temperature. The sampling probe 11 collects a sample to be analyzed in the sample accommodating cavity 12, and is heated by the heating element 13, and the temperature controller 14 controls the temperature to be 180-200 ℃.
In some preferred embodiments, the deployment module 10 is also plumbed with a flushing device comprising a manual valve 151 for controlling the admission of compressed air (6-8bar) into the pipe, a filter screen 152 for cleaning the compressed air, and a directional flushing valve 153 for controlling the admission into the deployment module. The sampling assembly can be flushed by clean compressed air through the flushing device according to needs before sampling, so that possible blockage of the probe and possible pollution of the sampling assembly are avoided.
The heat tracing pipeline 20 is used for protecting the high-temperature sample to be analyzed after being heated by the heating element 13 of the sampling assembly, and maintaining the constant temperature of the sample to prevent condensation of water vapor. The heat tracing pipeline 20 can be heated by adopting a heat tracing band to maintain a constant temperature.
In some preferred embodiments, a temperature controller (not shown) is further disposed in the heat tracing circuit 20 for controlling the temperature of the heat tracing circuit 20.
In some preferred embodiments, the rapid condensing device is a compressor condensing unit.
In some preferred embodiments, the rapid condensing device is a compressor condenser connected in series. The high-temperature sample to be analyzed is condensed and separated by the first condenser 311, water is pumped out by the pump, the gas of the sample to be analyzed enters the second condenser 312 for condensation and separation again, water is pumped out by the pump, and the gas of the sample to be analyzed is further filtered by the filtering device.
The filtering device includes a membrane filter 321 and a hydrophobic filter 322. The membrane filter 321 is used for filtering the sample to be analyzed so that gas can pass through but fine impurity solid particles cannot pass through, thereby separating the fine impurity particles from the sample to be analyzed. The hydrophobic filter 322 further filters the water vapor in the sample to be analyzed, and then the completely cleaned sample to be analyzed enters the analyzer, so that the analysis is more accurate and objective.
As shown in fig. 2, the utility model provides a pretreatment method for detecting the carbon dioxide content in the ship tail gas comprises the following steps:
s1, sampling by using a probe to obtain a sample to be analyzed, and simultaneously heating the sample to be analyzed to 180-200 ℃; the sample to be analyzed is taken from ship tail gas;
s2, conveying the heated sample to be analyzed to a rapid condensing device at constant temperature through a heat tracing pipeline;
s3, rapidly cooling and separating the sample to be analyzed and water through a rapid condensation device, removing moisture in the sample to be analyzed, wherein the cooling time is not more than 1 second, so as to ensure that carbon dioxide is not absorbed by water, and thus the objectivity and accuracy of sample introduction of the analyzer are ensured;
s4, filtering the to-be-analyzed sample subjected to water separation and removal by a filtering device to remove fine impurity particles in the to-be-analyzed sample;
and S5, conveying the filtered sample to be analyzed to an analyzer for detecting the content of carbon dioxide.
In conclusion, adopt the utility model discloses a pretreatment systems and pretreatment methods will treat the analysis sample heating to high temperature in sampling probe, carry to quick condensing equipment through the heat tracing pipeline, quick cooling separation carbon dioxide and water in 1 second, the treatment of removing water sample of treating analysis is through filtration treatment, further detach tiny impurity particle to guarantee the objectivity and the accuracy of the treatment analysis sample that gets into the analysis appearance, be particularly useful for the carbon dioxide content detection of the boats and ships tail gas of high temperature and high humidity.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. A pretreatment system for detecting the carbon dioxide content of ship tail gas is characterized by comprising:
adopting a component;
an analyzer pre-processing unit;
and a heat tracing pipeline connecting the sampling probe and the analyzer preprocessing unit;
wherein, the adoption subassembly contains: the sampling probe, the sample containing cavity and the heating element are used for heating the sample containing cavity; the analyzer pretreatment unit comprises a rapid condensation device and a filtering device which are communicated through a pipeline, and a gas outlet of the filtering device is connected to the analyzer.
2. The pretreatment system for detecting the carbon dioxide content in the marine exhaust according to claim 1, wherein the application module further comprises: and the temperature controller is used for controlling the heating temperature of the sample to be analyzed.
3. The pretreatment system for detecting the carbon dioxide content in the marine exhaust according to claim 2, wherein the sample to be analyzed is taken from the marine exhaust.
4. The pretreatment system for detecting the carbon dioxide content in the ship tail gas as claimed in claim 1, wherein the adapting assembly is further connected with a flushing device through a pipeline, and the flushing device comprises a manual valve for controlling compressed air to enter the pipeline, a filter screen and a forward flushing valve for controlling compressed air to enter the adapting assembly.
5. The pretreatment system for detecting the carbon dioxide content in the marine exhaust according to claim 1, wherein the heat tracing pipeline is provided with a heat tracing band.
6. The pretreatment system for detecting the carbon dioxide content in the marine exhaust according to claim 1, wherein a temperature controller is further disposed in the heat-tracing pipeline.
7. The pretreatment system for detecting the carbon dioxide content in the marine exhaust according to claim 1, wherein the rapid condensing device is a compressor condensing unit.
8. The pretreatment system for detecting the carbon dioxide content in the marine exhaust according to claim 1, wherein the rapid condensation device comprises at least two condensers connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323944.0U CN209858320U (en) | 2019-03-14 | 2019-03-14 | Pretreatment system for detecting content of carbon dioxide in ship tail gas |
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| CN201920323944.0U CN209858320U (en) | 2019-03-14 | 2019-03-14 | Pretreatment system for detecting content of carbon dioxide in ship tail gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813593A (en) * | 2019-03-14 | 2019-05-28 | 中国船舶电站设备有限公司 | Pretreatment system and method for the detection of ship tail gas carbon dioxide content |
| CN117388444A (en) * | 2023-12-08 | 2024-01-12 | 陕西省环境调查评估中心 | Air detector |
-
2019
- 2019-03-14 CN CN201920323944.0U patent/CN209858320U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813593A (en) * | 2019-03-14 | 2019-05-28 | 中国船舶电站设备有限公司 | Pretreatment system and method for the detection of ship tail gas carbon dioxide content |
| CN117388444A (en) * | 2023-12-08 | 2024-01-12 | 陕西省环境调查评估中心 | Air detector |
| CN117388444B (en) * | 2023-12-08 | 2024-03-01 | 陕西省环境调查评估中心 | Air detector |
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