CN112577788A - Typical atmosphere environment efficient sampling analysis device and analysis method - Google Patents
Typical atmosphere environment efficient sampling analysis device and analysis method Download PDFInfo
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- CN112577788A CN112577788A CN201910929676.1A CN201910929676A CN112577788A CN 112577788 A CN112577788 A CN 112577788A CN 201910929676 A CN201910929676 A CN 201910929676A CN 112577788 A CN112577788 A CN 112577788A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
Abstract
The invention discloses a typical atmosphere environment efficient sampling analysis device and an analysis method, and belongs to the field of typical atmosphere environment sampling of refining and chemical enterprises. The sampling device solves the technical problems of long time consumption, inaccuracy and low efficiency of sampling in the prior art. The sampling analysis device comprises a sampling bin, a sampling device and a sampling device, wherein the sampling bin is used for placing a sample to be detected; the analysis experiment bin is used for carrying out quantitative and qualitative analysis on the sample to be detected; the conveying unit is used for conveying the sample to be tested in the sampling bin into the analysis experiment bin for analysis; and the sensing unit is used for sensing the environmental condition of field sampling. The analysis experiment bin is internally provided with a qualitative analysis module and a quantitative analysis module, and the qualitative analysis module and the quantitative analysis module are used for respectively carrying out qualitative analysis and quantitative analysis on the sample to be detected. The method is suitable for the field of typical atmosphere environment sampling of refining enterprises, and has the advantages of simplicity and convenience in operation, short consumed time, low labor cost, real-time sampling, real-time analysis and the like.
Description
Technical Field
The invention relates to the field of typical atmosphere environment sampling of refining enterprises, in particular to a high-efficiency sampling and analyzing device and method for typical atmosphere environment.
Background
In the typical atmosphere on-site sampling work of a refinery enterprise, due to the extremely strong spatiality and timeliness of the refinery environment, in order to correctly know and simulate the quality condition of the refinery environment, a sample with authenticity and representativeness must be collected. When the sample is not true or representative, the serious influence caused by sample distortion cannot be compensated and changed even though the laboratory analysis work is strict, and even if the test quality completely meets the requirement, the situation of knowing and simulating the environmental quality is meaningless, so that the sampling is an extremely important ring. For this reason, practical attention must be paid to sampling methods that allow the collected samples to meet the planned requirements for a true, representative, and complete sample.
At present, the on-site sampling method for typical atmosphere at home and abroad mainly comprises the steps of placing tools such as a suma pot, an activated carbon tube, an absorption liquid and the like on site for a certain time for sampling, and then bringing the sampling back to a laboratory for analysis.
Application No. 201610261632.2 discloses a sampling device and a method for sampling using the same, which includes a sample gas inlet device for leading out sample gas; the cooling device is communicated with the sample gas inlet device and is used for cooling the led sample gas to obtain a gas-liquid mixture; the gas-liquid separation device is communicated with the cooling device and is used for carrying out gas-liquid separation on the gas-liquid mixture to obtain waste gas and condensate; the tail gas compression device is communicated with the gas-liquid separation device and is used for compressing and recovering the waste gas; and a sampling bottle communicated with the gas-liquid separation device and used for collecting the condensate; and a pressure difference is formed between the tail gas compression device and the sample gas inlet device.
Application No. 201410119278.0 discloses a quantitative sampling device comprising a sampling chamber for a slurry sample to pass therethrough; the sampling inlet is arranged at the lower part of the side wall of the sampling cavity and is used for the slurry sample to enter the sampling cavity, the sampling inlet comprises a plurality of sampling holes, each sampling hole comprises a small hole section and a large hole section, and the large hole section is close to the inside of the sampling cavity; a sampling outlet disposed in an upper portion of the sampling chamber sidewall and connected to a suction pump for drawing the mud sample from the sampling outlet.
The above methods can perform sampling, but have the following problems:
first, it takes a long time. The area of a refinery is large, sampling personnel need to place sampling points back and forth on site, and take back sampling tools after sampling is finished;
secondly, the labor cost is high. Sampling at different positions at the same time requires simultaneous operation of multiple persons;
and thirdly, is influenced by environmental conditions. The environment needing to be sampled is influenced by the field environment condition, and a sampling worker can place a sampling tool only by waiting for the environment condition to be proper on the field;
fourth, the sampling tool is inconvenient to carry. The sampling tools are multiple and complicated, and the carrying is inconvenient;
fifth, the time to analyze the sample is long. After sampling, the sample needs to be sent to a laboratory for analysis, which is time consuming.
In summary, the sampling analysis method in the prior art is still to be further improved.
Disclosure of Invention
The invention aims to provide a typical atmosphere environment efficient sampling analysis device and an analysis method, which can efficiently and periodically sample and analyze the refinery environment.
One of the tasks of the invention is to provide a typical atmosphere environment high-efficiency sampling analysis device, which adopts the following technical scheme:
an efficient sampling and analyzing device for typical atmosphere environments, comprising:
the sampling bin is used for placing a sample to be detected;
the analysis experiment bin is used for carrying out quantitative and qualitative analysis on the sample to be detected;
the conveying unit is used for conveying the sample to be tested in the sampling bin into the analysis experiment bin for analysis;
and the sensing unit is used for sensing the environmental condition of field sampling.
As a preferred embodiment of the present invention, a qualitative analysis module and a quantitative analysis module are disposed in the analysis experiment chamber, and the qualitative analysis module and the quantitative analysis module perform qualitative and quantitative analysis on the sample to be tested, respectively.
In another preferred embodiment of the present invention, the experimental chamber is further provided with an exhaust gas treatment module, and the exhaust gas treatment module is used for recovering and treating the exhaust gas analyzed by the qualitative and quantitative analysis module.
Further preferably, the sampling chamber is provided with a second electromagnetic valve, and the opening or closing of the sampling chamber can be controlled by the second electromagnetic valve.
Further preferably, the above-mentioned conveying unit includes:
the gas pipeline is used for connecting the sampling bin with the analysis experiment bin;
a vacuum pump located on the gas pipeline;
and the first electromagnetic valve is used for controlling the opening or closing of the gas pipeline.
Further preferably, the first electromagnetic valve is located on a gas line between the vacuum pump and the sampling chamber.
Further preferably, the environmental conditions include temperature, humidity, or wind speed.
Preferably, the sensing unit comprises a temperature sensing module, a humidity sensing module, a wind speed sensing module and a flow controller, the sensing unit is located on the sampling bin, a filter screen is further arranged at the joint of the sampling bin and the gas pipeline, and a sample to be detected enters the gas pipeline after passing through the filter screen.
Preferably, the qualitative analysis module, the quantitative analysis module and the waste gas treatment module are all automatically controlled by a computer.
Preferably, the temperature sensing module, the humidity sensing module, the wind speed sensing module and the flow controller are all automatically controlled by a computer.
Another task of the present invention is to provide a method for analyzing a typical atmosphere environment by sampling efficiently, which comprises the following steps in sequence:
a. opening the sampling bin, and detecting whether the field environmental conditions meet the detection requirements through the sensing unit;
b. if the detection requirement is met, the conveying unit is started, and the sample to be detected enters the analysis experiment bin;
c. analyzing by a quantitative analysis module and a qualitative analysis module of the analysis experiment bin;
d. and after the analysis is finished, the detected waste gas is treated through a waste gas treatment module.
The typical atmosphere environment high-efficiency sampling and analyzing device is applied to refining enterprises.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) the time is saved, and different positions of a refinery can be sampled simultaneously;
(2) the manual cost is saved by one-man operation;
(3) the sampling can be carried out in real time, and the influence of waiting for the field environmental conditions by personnel is not needed;
(4) the sampling can be carried out in multiple paths simultaneously; the sample can be analyzed in real time;
(5) qualitative and quantitative analysis can be carried out on the sample to be detected;
(6) the analyzed sample may be processed. The invention can be widely applied to typical environment sampling and occupational health sampling of refining enterprises;
(7) the method is suitable for the field of typical atmosphere environment sampling of refining enterprises, and has the advantages of simplicity and convenience in operation, short consumed time, low labor cost, real-time sampling, real-time analysis and the like.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of an efficient sampling and analyzing device for an atmosphere environment according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a sensing unit according to the present invention;
in the figure, the device comprises a quantitative analysis module 1, a qualitative analysis module 2, an analysis experiment bin 3, an analysis experiment bin 4, a vacuum pump 5, a gas pipeline 6, a first electromagnetic valve 7, a second electromagnetic valve 8, a sampling bin 9, a flow controller 10, a wind speed sensing module 11, a temperature and humidity sensing module 12, a filter screen 13 and a waste gas treatment module.
Detailed Description
The invention provides a typical atmosphere environment efficient sampling analysis device and an analysis method, and in order to make the advantages and technical scheme of the invention clearer and clearer, the invention is described in detail with reference to specific embodiments.
The analysis device and the analysis method are particularly suitable for detecting and analyzing samples in refining enterprises.
The parameters of the quantitative analysis module and the qualitative analysis module are set in advance, and the analysis can be realized by a person skilled in the art by referring to the prior art.
The invention relates to a qualitative analysis module, a quantitative analysis module, a flow controller, a first electromagnetic valve, a second electromagnetic valve and an exhaust gas treatment module. The temperature and humidity control module is automatically controlled, if the temperature and humidity control module is controlled by setting related programs through a computer, analysis and detection personnel can complete the collection and analysis of samples only near the computer.
The flow control module can automatically control the flow rate.
The temperature and humidity control module can automatically sense the temperature and humidity in the environment, and the wind speed control module can detect the wind speed in the environment.
The gas pipeline adopts an anti-corrosion polytetrafluoroethylene pipeline.
The quantitative analysis mentioned in the invention mainly distinguishes the content of the component gas;
the qualitative analysis described in the present invention is primarily to identify which component gas is still.
The waste gas treatment module can treat the analyzed sample, so that the aim of environmental protection is fulfilled.
An efficient sampling and analyzing device for typical atmosphere environments, comprising: the sampling bin 8 is used for placing a sample to be tested, the sampling bin 8 is provided with a second electromagnetic valve 7, and the opening or closing of the sampling bin 8 can be controlled through the second electromagnetic valve 7; the analysis experiment bin 3 is used for carrying out quantitative and qualitative analysis on the sample to be detected; the conveying unit is used for conveying the sample to be tested in the sampling bin into the analysis experiment bin for analysis; and the sensing unit is used for sensing the environmental condition of field sampling.
Further preferably, a qualitative analysis module 2, a quantitative analysis module 1 and an exhaust gas treatment module 13 are arranged in the analysis experiment bin 3, and the qualitative analysis module 2 and the quantitative analysis module 1 are used for respectively performing qualitative and quantitative analysis on a sample to be detected; the waste gas treatment module 13 is used for recycling the waste gas analyzed by the qualitative and quantitative analysis module.
Further preferably, the above-mentioned conveying unit includes: the gas pipeline 5 is used for connecting the sampling bin with the analysis experiment bin, one end of the gas pipeline is connected with the sampling bin, and the other end of the gas pipeline is connected with the analysis experiment bin; the vacuum pump 4 is positioned on the gas pipeline; the first electromagnetic valve 6 is positioned on the gas pipeline and used for controlling the opening or closing of the gas pipeline, a sample to be detected can enter the analysis experiment bin when the gas pipeline is opened, and the conveying is stopped when the gas pipeline is closed.
Preferably, the sensing unit includes a temperature and humidity sensing module 11 (i.e., a temperature sensing module and a humidity sensing module), a wind speed sensing module 10 and a flow controller 9, the sensing unit is located on the sampling bin, a filter screen 12 is further disposed at a connection position between the sampling bin and the gas pipeline, and a sample to be measured enters the gas pipeline after passing through the filter screen.
Further preferably, the qualitative analysis module 2, the quantitative analysis module 1 and the waste gas treatment module 13 are all automatically controlled by a computer; the temperature sensing module, the humidity sensing module, the wind speed sensing module and the flow controller are all automatically controlled by a computer.
Referring to fig. 1 and 2, the typical atmosphere environment high-efficiency sampling and analyzing device provided by the invention has the advantages that all modules, namely the quantitative analysis module, the qualitative analysis module, the temperature and humidity sensing module and the wind speed control module, are automatically controlled and sensed and can be operated by one key.
The sampling and analyzing device can also be provided with a plurality of gas pipelines, and the connection mode of the plurality of gas pipelines is the same as that of the gas pipelines, so that the simultaneous sampling and analysis of multiple paths of gases can be realized.
The following describes in detail a typical atmosphere environment efficient sampling analysis method of the present invention, which sequentially comprises the following steps:
the method comprises the following steps that firstly, a second electromagnetic valve 7 is opened, a sampling bin 8 is opened, and a temperature and humidity sensing module 11 and a wind speed sensing module 10 read temperature, humidity and wind speed to determine whether the temperature, humidity and wind speed meet detection requirements or not;
secondly, if the detection requirement is met, automatically opening the first electromagnetic valve 6, starting the vacuum pump 4, vacuumizing, automatically closing the vacuum pump after the vacuum degree in the gas pipeline 5 is stable, starting the flow controller 9, and sucking the gas to be detected into the gas pipeline 5 through the filter screen 12;
thirdly, the sample reaches an analysis experiment bin 3, the qualitative analysis of the sample is sequentially carried out through a qualitative analysis module 2, the quantitative analysis of the sample is carried out through a quantitative analysis module, and finally sampling data are obtained;
and step four, the finally analyzed sample enters an exhaust gas treatment module 13 to treat the exhaust gas.
The present invention will be described in detail with reference to specific examples.
Example 1:
a certain sampling person wants to sample 10 devices such as a sulfur device, a reforming device, a gas separation device, a hydrogenation device, a coking device and the like in a refinery, and needs to sample 10 am at the same time and compare sampling data of 10 devices at 10 am. Normally, 10 people are required to start sampling at 10 locations, 10 o' clock simultaneously. By adopting the sampling method, 10 devices can be sampled simultaneously by only 1 person opening the valve at 10 points in the laboratory.
Example 2:
a certain sampling person needs to carry out sampling detection at the temperature of 15-20 ℃, the humidity of 50-60% RH and the wind speed of 2.1-3.0 m/s. The sampling personnel need to wait for the environmental conditions to meet the requirements all the time on site and immediately perform sampling. The sampling method only needs to set a plurality of environmental conditions to automatically carry out sampling operation.
Example 3:
after a certain sampling person finishes sampling on the spot, the sample gas sampled on the spot needs to be brought back to a laboratory or a unit, the time on the road is delayed, the sample gas placement time is long, the device can be used for carrying out real-time qualitative and quantitative analysis on the sample gas, and the sampling analysis time is greatly reduced.
The parts which are not described in the invention can be realized by taking the prior art as reference.
It should be noted that: any equivalents or obvious modifications thereof which may occur to persons skilled in the art and which are given the benefit of this description are deemed to be within the scope of the invention.
Claims (12)
1. An efficient sampling and analyzing device for typical atmosphere environments, comprising:
the sampling bin is used for placing a sample to be detected;
the analysis experiment bin is used for carrying out quantitative and qualitative analysis on the sample to be detected;
the conveying unit is used for conveying the sample to be tested in the sampling bin into the analysis experiment bin for analysis;
and the sensing unit is used for sensing the environmental condition of field sampling.
2. A typical atmospheric environment high efficiency sampling analysis apparatus according to claim 1, wherein: the analysis experiment chamber is internally provided with a qualitative analysis module and a quantitative analysis module, and the qualitative analysis module and the quantitative analysis module are used for respectively carrying out qualitative and quantitative analysis on the sample to be detected.
3. A typical atmospheric environment high efficiency sampling analysis apparatus according to claim 2, wherein: the experimental bin is further provided with a waste gas treatment module, and the waste gas treatment module is used for recycling waste gas analyzed by the qualitative and quantitative analysis module.
4. A typical atmospheric environment high efficiency sampling analysis apparatus according to claim 1, wherein: the sampling bin is provided with a second electromagnetic valve, and the sampling bin can be controlled to be opened or closed through the second electromagnetic valve.
5. A typical atmospheric environment high efficiency sampling analysis apparatus according to claim 1, wherein: the conveying unit comprises:
the gas pipeline is used for connecting the sampling bin and the analysis experiment bin;
the vacuum pump is positioned on the gas pipeline;
and the first electromagnetic valve is used for controlling the opening or closing of the gas pipeline.
6. A typical atmospheric environment high-efficiency sampling analysis apparatus according to claim 5, characterized by: the first electromagnetic valve is positioned on a gas pipeline between the vacuum pump and the sampling bin.
7. A typical atmospheric environment high efficiency sampling analysis apparatus according to claim 1, wherein: the environmental conditions include temperature, humidity or wind speed.
8. A typical atmospheric environment high efficiency sampling analysis apparatus according to claim 7, wherein: the sensing unit comprises a temperature sensing module, a humidity sensing module, a wind speed sensing module and a flow controller, the sensing unit is located on the sampling bin, a filter screen is further arranged at the joint of the sampling bin and the gas pipeline, and a sample to be detected enters the gas pipeline after passing through the filter screen.
9. A typical atmosphere environment high-efficiency sampling and analyzing device according to claim 2 or 3, characterized in that: the qualitative analysis module, the quantitative analysis module and the waste gas treatment module are all automatically controlled by a computer.
10. A typical atmospheric environment high efficiency sampling analysis apparatus according to claim 8, wherein: the temperature sensing module, the humidity sensing module, the wind speed sensing module and the flow controller are all automatically controlled by a computer.
11. A method for analyzing a representative atmosphere environment by sampling, which comprises the steps of:
a. opening the sampling bin, and detecting whether the field environmental conditions meet the detection requirements through the sensing unit;
b. if the detection requirement is met, the conveying unit is started, and the sample to be detected enters the analysis experiment bin;
c. analyzing by a quantitative analysis module and a qualitative analysis module of the analysis experiment bin;
d. and after the analysis is finished, the detected waste gas is treated through a waste gas treatment module.
12. Use of a device for efficient sampling and analysis of the typical atmosphere environment according to any one of claims 1 to 8 in a refinery.
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| JP2007178445A (en) * | 2007-03-05 | 2007-07-12 | Jeol Ltd | Quantitative analysis method in sample analyzer |
| CN102053164A (en) * | 2009-10-28 | 2011-05-11 | 中国科学院大气物理研究所 | System and method for automatically acquiring and analyzing trace gas |
| US20180017470A1 (en) * | 2015-01-15 | 2018-01-18 | Avl Emission Test Systems Gmbh | Exhaust-gas sampling system, and method for operating an exhaust-gas sampling system of said type |
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