CN108152090A - A kind of smoke dust sampling device - Google Patents
A kind of smoke dust sampling device Download PDFInfo
- Publication number
- CN108152090A CN108152090A CN201810121378.5A CN201810121378A CN108152090A CN 108152090 A CN108152090 A CN 108152090A CN 201810121378 A CN201810121378 A CN 201810121378A CN 108152090 A CN108152090 A CN 108152090A
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- sampling
- microcontroller
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- sensor
- flow
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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
-
- 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
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of smoke dust sampling device, it is related to environmental monitoring technology field；Thermocouple is connect by the first temperature sensor with microcontroller, Pitot tube is connect by micro-pressure sensor with microcontroller, sampling pipe is connect with sampling container, sampling container is connect with sulphur removal drier, sulphur removal drier is connect by pipeline with aspiration pump, and the pressure sensor being connect respectively with microcontroller, photoelectric sensor, second temperature sensor, flow sensor and flow control valve are provided on pipeline；The photoelectric sensor by A D converters connect with microcontroller；The microcontroller is connect with display.The present invention can be according to the situation of change of temperature and pressure, sampling flow is adjusted at any time, maintain isokinetic sampling, reduce the sampling error brought due to flue gas flow rate change, suitable for measuring the unstable environment of flue gas operating mode and sampling, and it is not suitable for the alarm of the flue gas concentration of working environment, ensure safe to use.
Description
Technical field
The present invention relates to environmental monitoring technology fields, and in particular to a kind of smoke dust sampling device.
Background technology
In environmental monitoring, the stationary sources such as flue are needed to carry out flue dust, flue gas sampling detection.Flue is carried out
During sampling, need to acquire flue dust, the flue gas data of the different depth point of flue different level or vertical plane, so, general cigarette
Multiple thieff hatch can be reserved on road, for most common horizontal rectangular flue, thieff hatch is vertically arranged in a row, and corresponds to flue respectively
The different location in section.For vertical gas pass, then level is arranged in a row thieff hatch.When flue dust, flue gas sampling, by soot sampling tube
Flue is stretched by the thieff hatch on flue, according to the good measuring point position of calculating and setting before sampling and sampling time, is become successively
Measuring point is changed to be sampled.It is separately carried out due to measuring flow and sampling, flue gas operating mode is unstable, and flue gas flow rate change can generate
Sampling error.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide one kind is simple in structure, reasonable design, makes
With convenient smoke dust sampling device.
To achieve the above object, the technical solution adopted by the present invention is：It includes thermocouple, Pitot tube, sampling pipe, sampling
Container, sulphur removal drier, the first temperature sensor, micro-pressure sensor, pressure sensor, photoelectric sensor, A D converters,
Two temperature sensors, flow sensor, microcontroller, flow control valve, aspiration pump, display；The thermocouple passes through first
Temperature sensor is connect with microcontroller, and Pitot tube is connect by micro-pressure sensor with microcontroller, and sampling pipe is connect with sampling container,
Sampling container is connect with sulphur removal drier, and sulphur removal drier is connect by pipeline with aspiration pump, be provided on pipeline respectively with list
Pressure sensor, photoelectric sensor, second temperature sensor, flow sensor and the flow control valve of piece machine connection；Described
Photoelectric sensor by A D converters connect with microcontroller；The microcontroller is connect with display.
Preferably, it is also associated with printer and alarm on the microcontroller.
Preferably, the thermocouple, Pitot tube are fixedly connected with sampling pipe by fixed plate.
Preferably, the microcontroller is SPCE061A type microcontrollers.
Be carried out at the same time preferably, measuring flow and sampling, so as to reduce due to flue gas flow rate changes and that brings adopt
Sample error.
During present invention operation, pressure sensor, photoelectric sensor, second temperature sensor, flow sensor are inserted simultaneously
Enter same sampled point in flue, joined according to flue gases such as flue gas static pressure, water capacity and the dynamic pressure measured at that time, the temperature measured in advance
Number, with reference to the outspoken diameter of sampling of selection, isokinetic sampling's flow is calculated by microcontroller in time, and the rapid flow control valve that adjusts is to wanting
The reading asked makes actual flow equal with the sampling flow calculated, so as to ensure that flue dust automatic constant speed samples；Meanwhile photoelectricity
Sensor is received the intensity-conversion of light as voltage signal, through A microcontroller is sent to be handled after the conversion of D converters, by showing
Device is shown, and the alarm that overflows.
With the above structure, what the present invention generated has the beneficial effect that：A kind of smoke dust sampling device of the present invention, can
According to the situation of change of temperature and pressure, sampling flow is adjusted at any time, maintains isokinetic sampling, is reduced since flue gas flow rate changes band
The sampling error come, it is dense suitable for the unstable environment of measure flue gas operating mode and sampling and the flue gas for being not suitable for working environment
The alarm of degree, guarantee is safe to use, and the present invention has many advantages, such as that simple in structure, setting is reasonable, low manufacture cost.
Description of the drawings
Fig. 1 is the structure chart of the present invention；
Fig. 2 is schematic block circuit diagram of the present invention.
Reference sign：
Thermocouple 1, Pitot tube 2, sampling pipe 3, sampling container 4, sulphur removal drier 5, the first temperature sensor 6, micro-pressure sensor
7th, pressure sensor 8, photoelectric sensor 9, A D converters 10, second temperature sensor 11, flow sensor 12, microcontroller 13,
Flow control valve 14, aspiration pump 15, display 16, printer 17, alarm 18, fixed plate 19.
Specific embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Referring to such as Fig. 1 --- shown in Fig. 2, present embodiment adopts the following technical scheme that：It includes thermocouple 1, skin
Trustship 2, sampling pipe 3, sampling container 4, sulphur removal drier 5, the first temperature sensor 6, micro-pressure sensor 7, pressure sensor 8,
Photoelectric sensor 9, A D converters 10, second temperature sensor 11, flow sensor 12, microcontroller 13, flow control valve 14,
Aspiration pump 15, display 16；The thermocouple 1 is connect by the first temperature sensor 6 with microcontroller 13, and Pitot tube 2 passes through
Micro-pressure sensor 7 is connect with microcontroller 13, and sampling pipe 3 is connect with sampling container 4, and sampling container 4 is connect with sulphur removal drier 5,
Sulphur removal drier 5 is connect by pipeline with aspiration pump 15, and the pressure sensor being connect respectively with microcontroller 13 is provided on pipeline
8th, photoelectric sensor 9, second temperature sensor 11, flow sensor 12 and flow control valve 14；The photoelectric sensor 9 is logical
Cross A D converters 10 connect with microcontroller 13；The microcontroller 13 is connect with display 16.
Preferably, it is also associated with printer 17 and alarm 18 on the microcontroller 13.
Preferably, the thermocouple 1, Pitot tube 2 are fixedly connected with sampling pipe 3 by fixed plate 19.
Preferably, the microcontroller 13 is SPCE061A type microcontrollers.
Be carried out at the same time preferably, measuring flow and sampling, so as to reduce due to flue gas flow rate changes and that brings adopt
Sample error.
When present embodiment operates, by pressure sensor 8, photoelectric sensor 9, second temperature sensor 11, flow
Sensor 12 is inserted into same sampled point in flue simultaneously, according to the flue gas static pressure measured in advance, water capacity and measures at that time dynamic
With reference to the outspoken diameter of sampling of selection, isokinetic sampling's flow is calculated by microcontroller 13 in time for the Gas Parameters such as pressure, temperature, rapid to adjust
Adjustable valve 14 throttle to required reading, makes actual flow equal with the sampling flow calculated, so as to ensure that flue dust certainly
Dynamic isokinetic sampling；Meanwhile photoelectric sensor 9 is received the intensity-conversion of light as voltage signal, through A after D converters 10 convert
Microcontroller 13 is sent to be handled, is shown by display 16, and the alarm that overflows.
With the above structure, what present embodiment generated has the beneficial effect that：One described in present embodiment
Kind smoke dust sampling device can adjust sampling flow at any time according to the situation of change of temperature and pressure, maintain isokinetic sampling, reduce
Due to the sampling error that flue gas flow rate change is brought, suitable for measuring the unstable environment of flue gas operating mode and sampling and discomfort
The alarm of the flue gas concentration of suitable working environment, ensure it is safe to use, present embodiment have simple in structure, setting rationally,
The advantages that low manufacture cost.
Basic principle of the invention and main feature and advantages of the present invention has been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (6)
1. a kind of smoke dust sampling device, it is characterised in that：It does comprising thermocouple, Pitot tube, sampling pipe, sampling container, sulphur removal
Dry device, the first temperature sensor, micro-pressure sensor, pressure sensor, photoelectric sensor, A D converters, second temperature sensing
Device, flow sensor, microcontroller, flow control valve, aspiration pump, display；The thermocouple passes through the first temperature sensor
Connect with microcontroller, Pitot tube is connect by micro-pressure sensor with microcontroller, and sampling pipe is connect with sampling container, sampling container with
Sulphur removal drier connects, and sulphur removal drier is connect by pipeline with aspiration pump, is provided with what is connect respectively with microcontroller on pipeline
Pressure sensor, photoelectric sensor, second temperature sensor, flow sensor and flow control valve；The photoelectric sensor
By A D converters connect with microcontroller；The microcontroller is connect with display.
2. a kind of smoke dust sampling device according to claim 1, it is characterised in that：It is also associated with beating on the microcontroller
Print machine and alarm.
3. a kind of smoke dust sampling device according to claim 1, it is characterised in that：It the thermocouple, Pitot tube and adopts
Sample pipe is fixedly connected by fixed plate.
4. a kind of smoke dust sampling device according to claim 1, it is characterised in that：The microcontroller is SPCE061A types
Microcontroller.
5. a kind of smoke dust sampling device according to claim 1, it is characterised in that：It measures flow and sampling is carried out at the same time,
So as to reduce due to the sampling error that flue gas flow rate changes and brings.
6. a kind of smoke dust sampling device according to claim 1, it is characterised in that：The microcontroller calculates constant speed in time
Sampling flow, rapid adjusting flow control valve to required reading make actual flow equal with the sampling flow calculated, so as to
It ensure that flue dust automatic constant speed samples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121378.5A CN108152090A (en) | 2018-02-07 | 2018-02-07 | A kind of smoke dust sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121378.5A CN108152090A (en) | 2018-02-07 | 2018-02-07 | A kind of smoke dust sampling device |
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| Publication Number | Publication Date |
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| CN108152090A true CN108152090A (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810121378.5A Pending CN108152090A (en) | 2018-02-07 | 2018-02-07 | A kind of smoke dust sampling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786426A (en) * | 2018-08-17 | 2018-11-13 | 浙江大学 | A kind of semidry method removes the pilot-plant of fluorine chlorine in coal-fired flue-gas |
| CN111289311A (en) * | 2020-03-20 | 2020-06-16 | 沈阳环境科学研究院 | Mixed emergency cooling type high-temperature flue gas sampling device and method |
| CN112834423A (en) * | 2020-12-31 | 2021-05-25 | 武汉方特工业设备技术有限公司 | Sampling device for laser flue gas online analyzer of intelligent steelmaking system |
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| CN2489323Y (en) * | 2001-07-29 | 2002-05-01 | 修光伟 | Sampler for smoke dust |
| US6439027B1 (en) * | 2000-08-10 | 2002-08-27 | Rupprecht & Patashnick Company, Inc. | Particulate mass measurement apparatus with real-time moisture monitor |
| CN201561880U (en) * | 2009-08-28 | 2010-08-25 | 武汉境辉环保科技有限公司 | Smoke sampler |
| CN204461956U (en) * | 2015-01-21 | 2015-07-08 | 深圳市彩虹谷科技有限公司 | A kind of flue dust monitor for low emission |
| CN104764631A (en) * | 2015-04-02 | 2015-07-08 | 青岛高远光电测控技术有限公司 | Portable aerosol sampling device for pollution source dilution channel and fluidization cabin |
| CN105527132A (en) * | 2014-09-29 | 2016-04-27 | 上海宝钢工业技术服务有限公司 | Cold rolling mill oil mist sampling system and analysis method thereof |
| CN205679440U (en) * | 2016-01-20 | 2016-11-09 | 四川大学 | A kind of sampling system being capable of constant flow isokinetic sampling |
| CN206103687U (en) * | 2016-09-14 | 2017-04-19 | 陕西富兴环保科技有限公司 | Automatic change energy -concerving and environment -protective SOx/NOx control dust collecting equipment |
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2018
- 2018-02-07 CN CN201810121378.5A patent/CN108152090A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6439027B1 (en) * | 2000-08-10 | 2002-08-27 | Rupprecht & Patashnick Company, Inc. | Particulate mass measurement apparatus with real-time moisture monitor |
| CN2489323Y (en) * | 2001-07-29 | 2002-05-01 | 修光伟 | Sampler for smoke dust |
| CN201561880U (en) * | 2009-08-28 | 2010-08-25 | 武汉境辉环保科技有限公司 | Smoke sampler |
| CN105527132A (en) * | 2014-09-29 | 2016-04-27 | 上海宝钢工业技术服务有限公司 | Cold rolling mill oil mist sampling system and analysis method thereof |
| CN204461956U (en) * | 2015-01-21 | 2015-07-08 | 深圳市彩虹谷科技有限公司 | A kind of flue dust monitor for low emission |
| CN104764631A (en) * | 2015-04-02 | 2015-07-08 | 青岛高远光电测控技术有限公司 | Portable aerosol sampling device for pollution source dilution channel and fluidization cabin |
| CN205679440U (en) * | 2016-01-20 | 2016-11-09 | 四川大学 | A kind of sampling system being capable of constant flow isokinetic sampling |
| CN206103687U (en) * | 2016-09-14 | 2017-04-19 | 陕西富兴环保科技有限公司 | Automatic change energy -concerving and environment -protective SOx/NOx control dust collecting equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786426A (en) * | 2018-08-17 | 2018-11-13 | 浙江大学 | A kind of semidry method removes the pilot-plant of fluorine chlorine in coal-fired flue-gas |
| CN111289311A (en) * | 2020-03-20 | 2020-06-16 | 沈阳环境科学研究院 | Mixed emergency cooling type high-temperature flue gas sampling device and method |
| CN112834423A (en) * | 2020-12-31 | 2021-05-25 | 武汉方特工业设备技术有限公司 | Sampling device for laser flue gas online analyzer of intelligent steelmaking system |
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Application publication date: 20180612 |
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| RJ01 | Rejection of invention patent application after publication |