CN201429558Y - Dust concentration measuring device of channel with little possibility of blockage - Google Patents

Dust concentration measuring device of channel with little possibility of blockage Download PDF

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Publication number
CN201429558Y
CN201429558Y CN2009200915842U CN200920091584U CN201429558Y CN 201429558 Y CN201429558 Y CN 201429558Y CN 2009200915842 U CN2009200915842 U CN 2009200915842U CN 200920091584 U CN200920091584 U CN 200920091584U CN 201429558 Y CN201429558 Y CN 201429558Y
Authority
CN
China
Prior art keywords
dust
channel
passage
measurement
venturi
Prior art date
Application number
CN2009200915842U
Other languages
Chinese (zh)
Inventor
尹宗保
李波
郭晨伟
Original Assignee
郑州市光力科技发展有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 郑州市光力科技发展有限公司 filed Critical 郑州市光力科技发展有限公司
Priority to CN2009200915842U priority Critical patent/CN201429558Y/en
Application granted granted Critical
Publication of CN201429558Y publication Critical patent/CN201429558Y/en

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Abstract

The utility model relates to a dust concentration measuring device of a channel with little possibility of blockage, which comprises a dust measuring channel, wherein a light emitter and a dust sensorare arranged on the channel; the dust measuring channel adopts a straight-through channel; an extraction probe and an extraction fan are correspondingly arranged on two ends of the channel; the dustmeasuring channel is provided with a contraction section, a throat section and a diffusion section in sequence along the air flow direction; the light emitter and the dust sensor are arranged at the throat section; a light receiving pipe communicated with the dust measuring channel through a pipeline is arranged on one side of the throat section opposite to the light emitter. Due to the special design structure of the dust measuring channel, the air flow produces Venturi effect, the flux of the air flow increases, together with the function of the extraction fan, the dust mixed gas to be measured flows through the measuring channel with high speed, and is discharged directly out of the measuring channel with high speed, so that the possibility of dust sedimentation and accumulation of in the channel is low, and the normal measurement is prevented from being influenced due to blockage during long-term continuous use.

Description

The not susceptible to plugging powder concentration measurement device of a kind of passage
Technical field
The utility model relates to a kind of powder concentration measurement device.
Background technology
Conventional online formula powder concentration measurement device mainly is that the mixed gas that adopts air extractor will have dust is extracted into the dust measurement passage, utilize optical transmitting set and dust sensor that the dust concentration in the dust measurement passage is measured then, again mixed gas is extracted out at last and gone.Its air extractor mainly contains two kinds at present, a kind of is to adopt the sampling aspiration pump to install the mode of filter membrane additional, another kind is the mode that adopts extraction fan, the former could operate as normal because of installing filter membrane additional, but after filter membrane works long hours, and dust will bulk deposition, influence normal pumping airflow amount and reduce air-flow velocity, thereby the normal test of influence, so in use must regularly replace filter membrane, this is very inconvenience for the on-line measurement instrument; The latter adopts extraction fan dust directly can be discharged, thereby needn't install filter membrane additional, has overcome first kind of mode and has changed the awkward problem of filter membrane.
Which kind of air extractor no matter the powder concentration measurement device adopt, all exist and measure passage because of the limited problem of sample gas velocity in the dust measurement passage that self is the uniform cross section straight-through structure substantially and causes, make the sample gas that extracts in the process of described measurement passage of flowing through, part dust wherein can enter in the passage that optical transmitting set and dust sensor and dust measurement passage link, have the part dust settling simultaneously in the dust measurement passage, when accumulating, dust will cause when a certain amount of passage to stop up, influence measuring accuracy, even cause the measurement mechanism cisco unity malfunction.
The utility model content
The purpose of this utility model provides the not susceptible to plugging powder concentration measurement device of a kind of passage.
For achieving the above object, the utility model adopts following technical scheme: the not susceptible to plugging powder concentration measurement device of a kind of passage, comprise the dust measurement passage, bleed and pop one's head in and extraction fan, the dust measurement passage is provided with optical transmitting set and dust sensor, described dust measurement passage is the through type passage, described probe and the extraction fan correspondence of bleeding is located at the two ends of described passage, the dust measurement passage has contraction section successively along airflow direction, venturi section and diffuser, described optical transmitting set and dust sensor are arranged at the venturi section, are provided with chengguang pipe by pipeline and dust measurement channel connection over against a side of optical transmitting set on the venturi section.
The dust measurement passage has iso-cross-section entrance to bleeding between probe at contraction section.
The dust measurement passage at diffuser to having the iso-cross-section outlet section between extraction fan.
The venturi section of dust measurement passage is an iso-cross-section venturi section.
The utility model in use, device is placed in the tested place, the probe of bleeding is best in face of wind direction, because the dust measurement passage shrinks the special design structure of diffusion more earlier, make air-flow in the dust measurement passage, produce Venturi effect, the air-flow a fluid stream increases, add the effect of extraction fan, make tested mix dust gas high velocity stream cross the measurement passage, and directly discharge at a high speed and measure outside the passage, to such an extent as to dust is difficult for producing sedimentation and accumulation in passage, can not take place to influence normal measurement because of latch up phenomenon in the long-term process of using continuously.In addition, the couple positioned opposite chengguang pipe at optical transmitting set can absorb light, in order to avoid the light retroeflection influences measuring accuracy.
The utility model is the fast measuring dust concentration at the scene, and uploads measurement data synchronously, is applicable under the coal mine, the dust measuring needs of occasion such as mine, plant working place, is particularly suitable for using in the mine that contains gas or coal dust explosion hazard.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that A-A among Fig. 1 is to synoptic diagram.
Embodiment
The not susceptible to plugging powder concentration measurement device of a kind of passage provided by the utility model such as Fig. 1, shown in Figure 2, this device comprises dust measurement passage 3, the probe 2 and extraction fan 6 of bleeding, dust measurement passage 3 is the through type passage, this passage 3 has the iso-cross-section entrance successively along airflow direction, contraction section, iso-cross-section venturi section, diffuser and iso-cross-section outlet section, described probe 2 and extraction fan 6 correspondences of bleeding are located at the two ends of described passage, described venturi section is provided with optical transmitting set 1 and dust sensor 5, is provided with chengguang pipe 4 by pipeline and dust measurement channel connection over against a side of optical transmitting set 1 on the venturi section.
The utility model in use, device is placed in the tested place, the probe of bleeding is best in face of wind direction, when tested mix dust gas passes through to measure passage 3 at a high speed, 5 pairs of mixed gass that flow through of dust sensor carry out the collection and the processing of dust concentration value in real time, then display device and the signal hop of concentration value by outer setting are carried out data presentation in real time and upload.

Claims (5)

1. not susceptible to plugging powder concentration measurement device of passage, comprise the dust measurement passage, bleed and pop one's head in and extraction fan, the dust measurement passage is provided with optical transmitting set and dust sensor, it is characterized in that: described dust measurement passage is the through type passage, described probe and the extraction fan correspondence of bleeding is located at the two ends of described passage, the dust measurement passage has contraction section successively along airflow direction, venturi section and diffuser, described optical transmitting set and dust sensor are arranged at the venturi section, are provided with chengguang pipe by pipeline and dust measurement channel connection over against a side of optical transmitting set on the venturi section.
2. the not susceptible to plugging powder concentration measurement device of passage according to claim 1 is characterized in that: the dust measurement passage has iso-cross-section entrance to bleeding between probe at contraction section.
3. the not susceptible to plugging powder concentration measurement device of passage according to claim 1 and 2 is characterized in that: the dust measurement passage at diffuser to having the iso-cross-section outlet section between extraction fan.
4. the not susceptible to plugging powder concentration measurement device of passage according to claim 1 and 2 is characterized in that: the venturi section of dust measurement passage is an iso-cross-section venturi section.
5. the not susceptible to plugging powder concentration measurement device of passage according to claim 3 is characterized in that: the venturi section of dust measurement passage is an iso-cross-section venturi section.
CN2009200915842U 2009-05-27 2009-05-27 Dust concentration measuring device of channel with little possibility of blockage CN201429558Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200915842U CN201429558Y (en) 2009-05-27 2009-05-27 Dust concentration measuring device of channel with little possibility of blockage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200915842U CN201429558Y (en) 2009-05-27 2009-05-27 Dust concentration measuring device of channel with little possibility of blockage

Publications (1)

Publication Number Publication Date
CN201429558Y true CN201429558Y (en) 2010-03-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200915842U CN201429558Y (en) 2009-05-27 2009-05-27 Dust concentration measuring device of channel with little possibility of blockage

Country Status (1)

Country Link
CN (1) CN201429558Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104749003A (en) * 2014-07-15 2015-07-01 卢满松 Air extracting device for SF6 gas leakage monitoring alarm
CN107607448A (en) * 2017-08-21 2018-01-19 黑龙江科技大学 A kind of low concentration dust concentration detecting method based on electric charge induction
CN107607447A (en) * 2017-08-21 2018-01-19 黑龙江科技大学 A kind of apparatus and method of accurate measurement low concentration dust concentration
CN108760830A (en) * 2018-03-20 2018-11-06 安徽航途智能科技有限公司 A kind of active air admission type bus inflammable gas detection device and working method
CN109374474A (en) * 2018-12-05 2019-02-22 海宁市英德赛电子有限公司 Electronic grade high-purity ammonia micro impurity element fast testing system
CN109668810A (en) * 2017-10-17 2019-04-23 重庆梅安森科技股份有限公司 A kind of mining dust concentration sensor
CN110905644A (en) * 2019-12-31 2020-03-24 潍柴动力股份有限公司 Exhaust mixing device and engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104749003A (en) * 2014-07-15 2015-07-01 卢满松 Air extracting device for SF6 gas leakage monitoring alarm
CN107607448A (en) * 2017-08-21 2018-01-19 黑龙江科技大学 A kind of low concentration dust concentration detecting method based on electric charge induction
CN107607447A (en) * 2017-08-21 2018-01-19 黑龙江科技大学 A kind of apparatus and method of accurate measurement low concentration dust concentration
CN109668810A (en) * 2017-10-17 2019-04-23 重庆梅安森科技股份有限公司 A kind of mining dust concentration sensor
CN108760830A (en) * 2018-03-20 2018-11-06 安徽航途智能科技有限公司 A kind of active air admission type bus inflammable gas detection device and working method
CN109374474A (en) * 2018-12-05 2019-02-22 海宁市英德赛电子有限公司 Electronic grade high-purity ammonia micro impurity element fast testing system
CN110905644A (en) * 2019-12-31 2020-03-24 潍柴动力股份有限公司 Exhaust mixing device and engine

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Address after: 450001 10 Hi Road, Zhengzhou hi tech Industry Development Zone, Henan, Zhengzhou

Patentee after: Zhengzhou GL Tech Company

Address before: 450001 10 Hi Road, Zhengzhou hi tech Industry Development Zone, Henan, Zhengzhou

Patentee before: Guangli Science & Technology Development Co., Ltd., Zhengzhou

C56 Change in the name or address of the patentee

Owner name: ZHEZHOU GUANGLI SCIENCE + TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: GUANGLI SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD., ZHENGZHOU

CP03 Change of name, title or address

Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10

Patentee after: Power Polytron Technologies Inc

Address before: 450001 10 Hi Road, Zhengzhou hi tech Industry Development Zone, Henan, Zhengzhou

Patentee before: Zhengzhou GL Tech Company

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CX01 Expiry of patent term

Granted publication date: 20100324

CX01 Expiry of patent term