CN208350567U - A kind of gas-solid rolling particles partial size on-line measurement device - Google Patents
A kind of gas-solid rolling particles partial size on-line measurement device Download PDFInfo
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- CN208350567U CN208350567U CN201721724134.3U CN201721724134U CN208350567U CN 208350567 U CN208350567 U CN 208350567U CN 201721724134 U CN201721724134 U CN 201721724134U CN 208350567 U CN208350567 U CN 208350567U
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Abstract
The utility model provides a kind of gas-solid rolling particles partial size on-line measurement device, including Dilution air and particle focus portion and optical counting measurement portion.Wherein, Dilution air is made of with particle focus portion probe tube, dilution and focusing pipe, recurrent canal.Probe tube is sampled wherein Dual-Phrase Distribution of Gas olid for connecting Dual-Phrase Distribution of Gas olid pipeline；Dilution is diluted Dual-Phrase Distribution of Gas olid by being passed through compressed air with focusing pipe, while passing through nozzle and shrinking realization particle focusing；Recurrent canal is for collecting Dual-Phrase Distribution of Gas olid and backing into pipeline.Laser generates laser, passes through measurement zone after line focus lens focus, transmitted light intensity signal is received through diaphragm by detector.By Dilution air and focus, by the gas-particle two-phase diluted stream of sampling, and particle focusing is passed through into measurement zone, the particle passed through one by one is counted, calculated and counted based on counting method principle, to obtain gas-solid rolling particles particle diameter distribution, it realizes the on-line measurement of gas-solid rolling particles partial size, provides reference for Dual-Phrase Distribution of Gas olid industrial process optimal control.
Description
Technical field
The utility model relates to two-phase flow measurement technical fields, in particular to a kind of gas-solid rolling particles partial size
On-line measurement device.
Background technique
Dual-Phrase Distribution of Gas olid is widely present in the energy, chemical industry, medicine and other fields, gas-solid rolling particles partial size on-line measurement pair
Industrial production energy-saving and emission-reduction, optimal control have particularly important meaning.
At present during industrial powder, gas-solid rolling particles grain diameter measurement mainly uses sampling-method for sieving, utilizes
Fast sampler carries out isokinetic sampling to Dual-Phrase Distribution of Gas olid in pipeline, obtains grain diameter parameter using the method for screening later,
So that industrial process is optimized and revised, but there are heavy workload, human factors to be affected, measurement result time lag etc. for this method
Problem is unable to satisfy the dynamic optimization demand of gas-solid diphasic stream parameter.In recent years, online for realization gas-solid rolling particles partial size
Measurement, the line Measurement Techniques such as ultrasonic method, electric method, image method, optical method continue to develop.Wherein, ultrasonic method penetration capacity is strong,
Without being transformed to two phase flow pipeline, but its measurement result is influenced by two phase flow image parameter；Electric method has simple and reliable
Etc. advantages, but usually require that and contacted with two phase flow flow field, be easy to happen abrasion；Although image method has the excellent of intuitive measurement results
Point, but require two-phase flow measurement object concentration diluter, the overlapping of particle also will affect measurement result；Optical method using light propagation with
The interaction inverting of particle obtains particle size parameters, has the advantages such as quick response.
Utility model content
The purpose of this utility model is: being taken with particle focus portion to Dual-Phrase Distribution of Gas olid in pipeline by Dilution air
Sample, and the particle stream of sparse focusing is formed, so that the particle by measured zone passes through one by one, decayed according to transmitted light intensity
The relationship of degree and grain diameter is counted, calculated and is counted to the particle passed through one by one based on counting method principle, to obtain
Dual-Phrase Distribution of Gas olid particle size distribution is obtained, to meet industrial process to the needs of grain diameter Parameter Measuring.
For above-mentioned purpose, the utility model provides a kind of gas-solid rolling particles partial size on-line measurement device, the dress
It sets including Dilution air and particle focus portion and optical counting measurement portion.Wherein Dilution air and particle focus portion are used to pipeline
Interior Dual-Phrase Distribution of Gas olid is sampled, and forms the particle stream of sparse focusing, so that the particle for passing through measured zone is to pass through one by one
's；Optical counting measurement portion is according to the relationship of transmitted light intensity attenuation degree and grain diameter, based on counting method principle to leading to one by one
The particle crossed is counted, calculated and is counted, to obtain gas-solid rolling particles particle diameter distribution.
Above-mentioned Dilution air is made of with particle focus portion probe tube, dilution and focusing pipe, recurrent canal.Probe tube is for connecting
Dual-Phrase Distribution of Gas olid pipeline is connect to be sampled wherein Dual-Phrase Distribution of Gas olid；Dilution is with focusing pipe by being passed through compressed air to gas-solid two
Phase stream is diluted, while being shunk by nozzle and being realized that particle focuses；Recurrent canal is for collecting Dual-Phrase Distribution of Gas olid and backing into
Pipeline.
In above-mentioned Dilution air and particle focus portion, by being drawn into probe tube, compressed air is logical for sampling Dual-Phrase Distribution of Gas olid
Enter dilution and focus to manage, recurrent canal is returned it into pipeline by negative pressure extracting Dual-Phrase Distribution of Gas olid.
Above-mentioned optical counting measurement portion is made of laser, condenser lens, diaphragm and detector.Laser generates laser,
By measurement zone after line focus lens focus, transmitted light is received through diaphragm by detector.
The utility model is by Dilution air and focuses, and passes through by the gas-particle two-phase diluted stream of sampling, and by particle focusing
Measurement zone is passed through since granule density is diluter at this time by the particle of measured zone one by one, according to transmitted light intensity decaying journey
The relationship of degree and grain diameter, is counted, calculated and is counted to the particle passed through one by one based on counting method principle, to obtain
Gas-solid rolling particles particle diameter distribution realizes the on-line measurement of gas-solid rolling particles partial size, is that Dual-Phrase Distribution of Gas olid industrial process is excellent
Change control and reference is provided.
The beneficial effects of the utility model are: the utility model provides a kind of gas-solid rolling particles partial size on-line measurement
Device can be sampled Dual-Phrase Distribution of Gas olid in pipeline, and particle is focused through measurement zone, based on counting method principle to one by one
By particle counted, calculated and counted, so that gas-solid rolling particles particle diameter distribution is obtained, to meet industrial process pair
The needs of grain diameter Parameter Measuring.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of gas-solid rolling particles partial size on-line measurement device of embodiment.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Referring to Fig.1, a kind of gas-solid rolling particles partial size on-line measurement device is present embodiments provided, which includes sky
Gas dilution and particle focus portion 1 and optical counting measurement portion 2.Wherein Dilution air and particle focus portion 1 are used to gas in pipeline
Fixed double phase flow is sampled, and forms the particle stream of sparse focusing, so that the particle by measured zone passes through one by one；Light
Count measurement portion 2 is learned according to the relationship of transmitted light intensity attenuation degree and grain diameter, based on counting method principle to passing through one by one
Particle is counted, calculated and is counted, to obtain gas-solid rolling particles particle diameter distribution.
Above-mentioned Dilution air is made of with particle focus portion 1 probe tube 11, dilution and focusing pipe 12, recurrent canal 13.Sampling
Pipe 11 is sampled wherein Dual-Phrase Distribution of Gas olid for connecting Dual-Phrase Distribution of Gas olid pipeline；Dilution is passed through compression with pipe 12 is focused
Air is diluted Dual-Phrase Distribution of Gas olid, while being shunk by nozzle and realizing that particle focuses；Recurrent canal 13 is for collecting gas-solid two
It mutually flows and backs into pipeline.
In above-mentioned Dilution air and particle focus portion 1, by being drawn into probe tube 11, compression is empty for sampling Dual-Phrase Distribution of Gas olid 14
Gas 15 is passed through dilution and focuses pipe 12, and recurrent canal 13 is returned it into pipeline by negative pressure extracting Dual-Phrase Distribution of Gas olid 16.
Above-mentioned optical counting measurement portion 2 is made of laser 21, condenser lens 22, diaphragm 23 and detector 24.Laser
21 generate laser 25, and line focus lens 22 pass through measurement zone 26 after focusing, and transmitted light is received through diaphragm 23 by detector 24.
A kind of course of work of gas-solid rolling particles partial size on-line measurement device provided by the present embodiment are as follows: user is first
First basis is embodiment attachment device, and recurrent canal takes out negative pressure, is sampled probe tube to Dual-Phrase Distribution of Gas olid in pipeline, will compress
Air is passed through dilution and focuses and manages, and the particle stream of sparse focusing is formed, so that the particle by measured zone passes through one by one.
Start optical counting measurement portion later, laser generates laser, passes through measurement zone after line focus lens focus, transmitted light is through diaphragm
It is received by detector, according to the relationship of transmitted light intensity attenuation degree and grain diameter, transmitted light intensity is believed based on counting method principle
It number is handled, obtains gas-solid rolling particles particle diameter distribution, realize the on-line measurement of gas-solid rolling particles partial size.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (1)
1. a kind of gas-solid rolling particles partial size on-line measurement device, which is characterized in that the measuring device includes Dilution air
With particle focus portion and optical counting measurement portion, wherein Dilution air and particle focus portion by probe tube, dilution and focus pipe,
Recurrent canal composition, sampling Dual-Phrase Distribution of Gas olid are passed through dilution and focused and managed by being drawn into probe tube, compressed air, and recurrent canal passes through
Negative pressure extracting Dual-Phrase Distribution of Gas olid, and return it into pipeline, for being sampled to Dual-Phrase Distribution of Gas olid in pipeline, and formed sparse
The particle stream of focusing, so that the particle by measured zone passes through one by one；Optical counting measurement portion is saturating by laser, focusing
Mirror, diaphragm and detector form, and laser generates laser, by measurement zone after line focus lens focus, transmitted light through diaphragm by
Detector receives, according to the relationship of transmitted light intensity attenuation degree and grain diameter, based on counting method principle to passed through one by one
Grain is counted, calculated and is counted, to obtain gas-solid rolling particles particle diameter distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724134.3U CN208350567U (en) | 2017-12-12 | 2017-12-12 | A kind of gas-solid rolling particles partial size on-line measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724134.3U CN208350567U (en) | 2017-12-12 | 2017-12-12 | A kind of gas-solid rolling particles partial size on-line measurement device |
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| CN208350567U true CN208350567U (en) | 2019-01-08 |
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| CN201721724134.3U Active CN208350567U (en) | 2017-12-12 | 2017-12-12 | A kind of gas-solid rolling particles partial size on-line measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906395A (en) * | 2019-11-07 | 2020-03-24 | 宁波方太厨具有限公司 | PM2.5 detection device for range hood, range hood and control method of range hood |
-
2017
- 2017-12-12 CN CN201721724134.3U patent/CN208350567U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906395A (en) * | 2019-11-07 | 2020-03-24 | 宁波方太厨具有限公司 | PM2.5 detection device for range hood, range hood and control method of range hood |
| CN110906395B (en) * | 2019-11-07 | 2022-02-08 | 宁波方太厨具有限公司 | Control method of range hood |
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Effective date of registration: 20200714 Address after: Room 401, building 1, Jiangning building, No.27 Ningtai Road, ningwei street, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Thermal Technology Co., Ltd Address before: 314423 Jiaxing Haining high tech Industrial Park, Jiaxing, Zhejiang Province, room 11, No. 628, room No. 11 Patentee before: HAINING SMART MEASURING OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |