CN109000996A - A kind of smoke dust sampling device - Google Patents
A kind of smoke dust sampling device Download PDFInfo
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- CN109000996A CN109000996A CN201811053615.5A CN201811053615A CN109000996A CN 109000996 A CN109000996 A CN 109000996A CN 201811053615 A CN201811053615 A CN 201811053615A CN 109000996 A CN109000996 A CN 109000996A
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- sampling
- smoke
- flue dust
- dust
- temperature sensor
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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
- G01N1/2273—Atmospheric sampling
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of smoke dust sampling devices, including sampling mouth, flue dust sample feeding pipe, smoke-dust sampling cylinder, soot sampling tube, sleeve, outer tube, sleeve；It samples and is respectively equipped with air flow rate sensor and the first temperature sensor on the inner sidewall of mouth；It is successively arranged pumping blower and flow regulator on flue dust sample feeding pipe, frequency converter and temperature controller are respectively equipped in sleeve；It is successively enclosed with heating component and insulating layer on the outer wall of flue dust sample feeding pipe and soot sampling tube, and is equipped with second temperature sensor at the middle part of smoke-dust sampling cylinder；When the temperature value that second temperature sensor detects is lower than the temperature value that first temperature sensor real-time detects, heating component automatically turns on, and when the temperature value difference that the temperature value that second temperature sensor detects and the first temperature sensor real-time detect is 3-5 DEG C, heating component is closed.The present invention by flue dust sample gas carry out constant speed, etc. the temperature difference sample, and then improve flue dust sample gas sampling precision.
Description
Technical field
The present invention relates to flue gas analysis field, in particular to a kind of smoke dust sampling device.
Background technique
Since, since China's haze weather increases, people has been made gradually to recognize suspended particulate substance pair in atmospheric environment in recent years
The harm of human health, and the volume of smoke generated in boiler combustion combustion process be generate air suspended particulated it is main because
One of element.Therefore, reinforce the monitoring to boiler smoke to analyze, monitoring data be timely and accurately provided, flue dust qualified discharge is promoted,
Reducing flue dust has very important realistic meaning to atmosphere pollution.In order to grasp the emission behaviour of flue dust, flue dust need to be carried out
Sampling analysis.
In practical application, there are following Railway Projects when being sampled using traditional smoke dust sampling device: (1) due to cigarette
Dirt temperature is higher, and temperature is lower in sampling gun, and this temperature difference will lead to the pre-cooling condensation of flue dust sample gas, form condensation, right
Monitoring pollution object formed absorption, in turn result in analysis result can not actual response flue dust actual conditions；(2) in order to from flue
Representative smoke sample is taken out, needs to carry out isokinetic sampling.So-called isokinetic sampling, i.e., in sampling, gas, which enters, to be adopted
The speed of sample mouth should be equal with the speed of sampled point, to overcome the dust concentration due to caused by the effect of inertia of movement of dust particle to survey
Measure error.
In conclusion based on the above issues, design it is a kind of when can overcome smoke dust sampling simultaneously due to flue dust temperature and humidity and
The smoke dust sampling device that flue dust sample rate causes sampling precision relatively low, it appears very it is necessary to.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of smoke dust sampling device, may be implemented to carry out flue dust sample gas etc.
Speed, etc. the temperature difference sampling, and then improve sampling precision.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is as follows:
A kind of smoke dust sampling device, including it is sampling mouth, flue dust sample feeding pipe, smoke-dust sampling cylinder, soot sampling tube, sleeve, outer
Pipe；The outer tube is L-shaped, and inner cavity is equipped with smoke-dust sampling cylinder and soot sampling tube, and the end of smoke-dust sampling cylinder passes through change
Drive connector is connected with the top of soot sampling tube；The front end of the flue dust sample feeding pipe is communicated with sampling mouth, and rear end is communicated with cigarette
Dirt sampling cylinder；The outer tube is equipped with sleeve；Air flow rate sensor and first are respectively equipped on the inner sidewall of the sampling mouth
Temperature sensor；It is successively arranged pumping blower and flow regulator on the flue dust sample feeding pipe, change is respectively equipped in sleeve
Frequency device and temperature controller；The air flow rate sensor and frequency converter are electrically connected with flow regulator respectively；The flue dust
It is successively enclosed with heating component and insulating layer on the outer wall of sample feeding pipe and soot sampling tube, and is set in the middle part of smoke-dust sampling cylinder
There is second temperature sensor；First temperature sensor, second temperature sensor and heating component are and temperature controller
It is electrically connected；
Wherein, it is real-time detected when the temperature value that second temperature sensor detects lower than first temperature sensor
When temperature value, the heating component is automatically turned on, and works as temperature value and the first temperature sensing that second temperature sensor detects
When the temperature value difference that device real-time detects is 3-5 DEG C, the heating component is closed.
Preferably, the heating component is electric-heating belt.
Preferably, the insulating layer is glass mat.
Preferably, the flue dust sample feeding pipe, smoke-dust sampling cylinder and soot sampling tube are all made of metal alloy compositions system
At.
Preferably, the sampling mouth, in horn-like, its rear end is attached with flue dust sample feeding pipe by screw thread.
Preferably, the flue dust sample feeding pipe and smoke-dust sampling cylinder are attached by screw thread.
The beneficial effects of the present invention are:
Smoke dust sampling device in the present invention, in the collection process of flue dust, by sampling the gas that is equipped with of mouth inner sidewall
Body flow sensor measures flue dust sample gas velocity, and flow regulator is evacuated wind by Frequency Converter Control according to flue dust sample gas velocity
The revolving speed of machine is realized that the pumping flow velocity of pumping blower matches with flue dust sample gas velocity, is adopted to carry out constant speed to flue dust sample gas
Sample；Simultaneously by the setting of the first protractor, second temperature device, heating component and temperature controller, item is judged by setting
Part, the temperature difference sampling such as realization, to avoid temperature difference present in sampling process from causing flue dust sample airsetting knot, to monitoring pollution object
Form absorption.The present invention by control constant speed and etc. the temperature difference be sampled, with guarantee sampling precision.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure, 1- samples mouth, 2- flue dust sample feeding pipe, 3- smoke-dust sampling cylinder, 4- soot sampling tube, 5- sleeve, 6- gas stream
Fast sensor, the first temperature sensor of 7-, 8- are evacuated blower, 9- flow regulator, 10- frequency converter, 11- heating component, 12-
Insulating layer, 13- second temperature sensor, 14- temperature controller, 15- outer tube.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figure 1, a kind of smoke dust sampling device, including sampling mouth 1, flue dust sample feeding pipe 2, smoke-dust sampling cylinder 3, flue dust are adopted
Sample pipe 4, sleeve 5, outer tube 15；The outer tube 15 is L-shaped, and inner cavity is equipped with smoke-dust sampling cylinder 3 and soot sampling tube 4, and cigarette
The end of dirt sampling cylinder 3 is connected by reducer union with the top of soot sampling tube 4；The front end of the flue dust sample feeding pipe 2 connects
It is connected with sampling mouth 1, rear end is communicated with smoke-dust sampling cylinder 3；The outer tube 15 is equipped with sleeve 5；On the inner sidewall of the sampling mouth 1
It is respectively equipped with air flow rate sensor 6 and the first temperature sensor 7；Pumping 8 He of blower is successively arranged on the flue dust sample feeding pipe 2
Flow regulator 9 is respectively equipped with frequency converter 10 and temperature controller 14 in sleeve 5；The air flow rate sensor 6 and change
Frequency device 10 is electrically connected with flow regulator 9 respectively；It is successively wrapped on the outer wall of the flue dust sample feeding pipe 2 and soot sampling tube 4
It is wrapped with heating component 11 and insulating layer 12, and is equipped with second temperature sensor 13 at the middle part of smoke-dust sampling cylinder 3；First temperature
Sensor 7, second temperature sensor 13 and heating component 11 is spent to be electrically connected with temperature controller 14；
Wherein, when the temperature value that second temperature sensor 13 detects is lower than 7 real-time detection of the first temperature sensor
When the temperature value arrived, the heating component 11 is automatically turned on, and works as the temperature value and first that second temperature sensor 13 detects
When the temperature value difference that temperature sensor 7 real-time detects is 3-5 DEG C, the heating component 11 is closed.
Specifically, the heating component 11 is electric-heating belt, electric-heating belt is wrapped up in by way of winding is attached to flue dust sample introduction
On the outer wall of pipe 2 and soot sampling tube 4, so that flue dust sample feeding pipe 2 and soot sampling tube 4 can integrally be heated, pipeline is improved
The degree of being heated evenly of inner cavity, to guarantee the representativeness that second temperature sensor 13 samples.
Specifically, the insulating layer 12 is glass mat.Using glass mat as insulating layer 12, not only have
Good thermal insulation property, but also can high temperature resistant and corrosion-resistant.
Specifically, the inner wall for being adhered to flue dust sample feeding pipe 2, smoke-dust sampling cylinder 3 and soot sampling tube 4 in order to avoid flue dust
On, the flue dust sample feeding pipe 2, smoke-dust sampling cylinder 3 and soot sampling tube 4 are all made of metal alloy compositions and are made.
Specifically, the sampling mouth 1, in horn-like, its rear end is attached with flue dust sample feeding pipe 2 by screw thread；The cigarette
Dirt sample feeding pipe 2 is attached with smoke-dust sampling cylinder 3 by screw thread.The mode being connected through a screw thread is torn open convenient for each components
Dress, while sampling mouth 1 can be screwed off the sampling mouth 1 more renewed when sampling mouth 1 and being blocked by flue dust, it avoids smoke-dust sampling mouth is whole
Body replacement waste material.
The course of work of the invention:
The stream that the air flow rate sensor 6 that 1 inner sidewall of mouth is equipped with is used to measure flue dust sample gas to be measured is sampled in the present invention
Speed, and collected signal is fed back into flow regulator 9, flow regulator 9 passes through frequency conversion according to flue dust sample gas velocity
The revolving speed of the control pumping blower 8 of device 10, realizes that the pumping flow velocity of pumping blower matches with flue dust sample gas velocity, thus to flue dust
Sample gas carries out isokinetic sampling, avoids the measurement of soot and dust concentration error due to caused by the effect of inertia of movement of dust particle in flue dust sample gas.
Meanwhile in the collection process of flue dust sample gas, the first temperature sensor is used to detect the temperature of flue dust sample gas to be measured,
Second temperature sensor judges item by setting for detecting 4 inner cavity temperature of smoke-dust sampling cylinder 3 and soot sampling tube, the present invention
Part controls smoke-dust sampling cylinder 3 using heating component 11 and 4 inner cavity temperature of soot sampling tube is consistently higher than the first temperature sensor
The temperature of the flue dust sample gas to be measured detected, and its steady temperature difference is between 3-5 DEG C, it, can be to avoid cigarette by the design
In dirt sample gas collection process, since flue dust sample temperature degree is higher, and smoke-dust sampling cylinder 3 and 4 inner cavity temperature of soot sampling tube compared with
Low, which causes flue dust sample airsetting knot, is formed and is adsorbed to monitoring pollution object, and in turn resulting in analysis result can not actual response
The actual conditions of flue dust.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (6)
1. a kind of smoke dust sampling device, including sampling mouth (1), flue dust sample feeding pipe (2), smoke-dust sampling cylinder (3), soot sampling tube
(4), sleeve (5), outer tube (15)；The outer tube (15) is L-shaped, and inner cavity is equipped with smoke-dust sampling cylinder (3) and soot sampling tube
(4), and the end of smoke-dust sampling cylinder (3) is connected by reducer union with the top of soot sampling tube (4)；The flue dust sample introduction
The front end of pipe (2) is communicated with sampling mouth (1), and rear end is communicated with smoke-dust sampling cylinder (3)；The outer tube (15) is equipped with sleeve (5)；
It is characterized by: being respectively equipped with air flow rate sensor (6) and the first temperature sensor on the inner sidewall of sampling mouth (1)
(7)；It is successively arranged pumping blower (8) and flow regulator (9) on the flue dust sample feeding pipe (2), is set respectively in sleeve (5)
There are frequency converter (10) and temperature controller (14)；The air flow rate sensor (6) and frequency converter (10) are adjusted with flow respectively
Device (9) electrical connection；Heating component is successively enclosed on the outer wall of the flue dust sample feeding pipe (2) and soot sampling tube (4)
(11) and insulating layer (12) second temperature sensor (13), and at the middle part of smoke-dust sampling cylinder (3) are equipped with；First temperature passes
Sensor (7), second temperature sensor (13) and heating component (11) are electrically connected with temperature controller (14)；
Wherein, when the temperature value that second temperature sensor (13) detects is lower than the first temperature sensor (7) real-time detection
When the temperature value arrived, the heating component (11) is automatically turned on, and the temperature value detected when second temperature sensor (13) with
When the temperature value difference that first temperature sensor (7) real-time detects is 3-5 DEG C, the heating component (11) is closed.
2. a kind of smoke dust sampling device according to claim 1, it is characterised in that: the heating component (11) is electric tracing
Band.
3. a kind of smoke dust sampling device according to claim 1, it is characterised in that: the insulating layer (12) is glass fibre
Felt.
4. a kind of smoke dust sampling device according to claim 1, it is characterised in that: the flue dust sample feeding pipe (2), flue dust are adopted
Sample cylinder (3) and soot sampling tube (4) are all made of metal alloy compositions and are made.
5. a kind of smoke dust sampling device according to claim 1, it is characterised in that: the sampling mouth (1) in horn-like,
Rear end is attached with flue dust sample feeding pipe (2) by screw thread.
6. a kind of smoke dust sampling device according to claim 1, it is characterised in that: the flue dust sample feeding pipe (2) and flue dust
Sampling cylinder (3) is attached by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053615.5A CN109000996A (en) | 2018-09-11 | 2018-09-11 | A kind of smoke dust sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053615.5A CN109000996A (en) | 2018-09-11 | 2018-09-11 | A kind of smoke dust sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109000996A true CN109000996A (en) | 2018-12-14 |
Family
ID=64590835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811053615.5A Pending CN109000996A (en) | 2018-09-11 | 2018-09-11 | A kind of smoke dust sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109000996A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855926A (en) * | 2019-03-26 | 2019-06-07 | 嘉兴求源检测技术有限公司 | A kind of smoke flue gas sampling instrument |
| CN110411791A (en) * | 2019-07-22 | 2019-11-05 | 武汉科技大学 | A kind of particulate collection device being enriched with performance for analyzing trace element high temperature |
| CN112557124A (en) * | 2020-12-30 | 2021-03-26 | 南京波瑞自动化科技有限公司 | Novel constant-speed sampling smoke probe |
| CN114720212A (en) * | 2022-06-08 | 2022-07-08 | 南京波瑞自动化科技有限公司 | A adjustable speed sampling device for particulate matter concentration detection in flue |
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| CN206804371U (en) * | 2017-06-20 | 2017-12-26 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of CEMS extraction-type smokemeter constant-speed sampling devices for being applied to change operating mode |
| CN207248580U (en) * | 2017-09-11 | 2018-04-17 | 西安热工研究院有限公司 | One kind is based on flue-gas temperature and thermostat water bath coolant controlled SO3Sampling system |
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| CN103245535A (en) * | 2012-02-14 | 2013-08-14 | 株式会社堀场制作所 | Exhaust gas sampling device |
| CN103162993A (en) * | 2013-03-14 | 2013-06-19 | 东南大学 | Isothermal constant-speed sampling device of fly ash |
| CN104359725A (en) * | 2014-09-28 | 2015-02-18 | 武汉洪兴伟业环境科技有限公司 | Smoke heating and sampling gun |
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| CN106855472A (en) * | 2017-03-08 | 2017-06-16 | 中国华能集团清洁能源技术研究院有限公司 | A kind of stationary source particulate Hg and gaseous mercury isokinetic sampling device and the method for sampling |
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| CN207248580U (en) * | 2017-09-11 | 2018-04-17 | 西安热工研究院有限公司 | One kind is based on flue-gas temperature and thermostat water bath coolant controlled SO3Sampling system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855926A (en) * | 2019-03-26 | 2019-06-07 | 嘉兴求源检测技术有限公司 | A kind of smoke flue gas sampling instrument |
| CN110411791A (en) * | 2019-07-22 | 2019-11-05 | 武汉科技大学 | A kind of particulate collection device being enriched with performance for analyzing trace element high temperature |
| CN112557124A (en) * | 2020-12-30 | 2021-03-26 | 南京波瑞自动化科技有限公司 | Novel constant-speed sampling smoke probe |
| CN114720212A (en) * | 2022-06-08 | 2022-07-08 | 南京波瑞自动化科技有限公司 | A adjustable speed sampling device for particulate matter concentration detection in flue |
| CN114720212B (en) * | 2022-06-08 | 2022-08-23 | 南京波瑞自动化科技有限公司 | A adjustable speed sampling device for particulate matter concentration detection in flue |
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Application publication date: 20181214 |
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