CN102494919B - A kind of sampling method for high pressure material pneumatic conveying pipeline - Google Patents
A kind of sampling method for high pressure material pneumatic conveying pipeline Download PDFInfo
- Publication number
- CN102494919B CN102494919B CN201110454876.XA CN201110454876A CN102494919B CN 102494919 B CN102494919 B CN 102494919B CN 201110454876 A CN201110454876 A CN 201110454876A CN 102494919 B CN102494919 B CN 102494919B
- Authority
- CN
- China
- Prior art keywords
- sampling
- sampler
- valve
- pipe
- sample
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 106
- 239000000463 material Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010926 purge Methods 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims description 21
- 238000010408 sweeping Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of sampling method for high pressure material pneumatic conveying pipeline, before sampling, first to high pressure material pneumatic conveying pipeline pressurising, open valve and the blowdown valve of sampling pipe during sampling, Exhaust Gas, samples from high pressure material pneumatic conveying pipeline; Or when sampler is initially normal pressure, first opens the valve near sampler on sampling pipe, near the valve of high pressure material pneumatic conveying pipeline on rear unlatching sampling pipe, utilize pressure to order about flow direction of material sampler and sample; After sampling, discharge sample, close discharge valve, blow off sample residual in sampling pipe; After sampling pipe is blown off, shut-down purge wind pipeline valve, opens discharge valve, discharges residual sample; The present invention utilizes the pressure in high pressure material pneumatic conveying pipeline to order about flow direction of material sampler, eliminates extrinsic motive equipment, and sampler structure simplifies greatly; Use and purge wind, residual sample in sampling pipe can be cleared up, guarantee the accuracy of lower sub-sampling.
Description
Technical field
The present invention relates to the technology of material Geldart-D particle, particularly a kind of sampling method for high pressure material pneumatic conveying pipeline.
Background technology
In the industrial production, a lot of situation needs to carry out sample analysis to material Pneumatic conveying pipeline, and to obtain the key property such as material component and form parameter, the parameter according to institute's sample thief carries out measuring and adjustation to production.
Conventional sampling mode mainly contains fixed and portable two kinds, wherein: portable sampler, because apparatus structure is complicated, sampling difficulty, is seldom applied in industry; Fixed sampler, usually tripping device is connected by sampling gun, gatherer is had in tripping device bottom, for now, be applied to material Pneumatic conveying pipeline sampler all needs additionaling power source, auxiliary device is many, sampling amount is little, and sample easily remains in sampling gun or sampling pipe, cause sample next time inaccurate, so need to design a kind of new sampler for the sampling of high pressure material pneumatic conveying pipeline.
Summary of the invention
The present invention is directed to above-mentioned technical matters and propose a kind of sampling method for high pressure material pneumatic conveying pipeline, the method is simple, conveyance conduit pressure itself is utilized to provide power, in short time, the comparatively large and sampling of sampling amount accurately, so the present invention is specially adapted to the sampling of high pressure material pneumatic conveying pipeline.
Technical scheme of the present invention is as follows:
For a sampling method for high pressure material pneumatic conveying pipeline, it is characterized in that sampling flowsheet is as follows:
A, before sampling, first by sweeping wind pipe road, pressurising is carried out to high pressure material pneumatic conveying pipeline, two valves on sampling pipe are opened during sampling, and the blowdown valve opened gradually in sampler, discharge the gas in sampler by blowdown valve, sample from high pressure material pneumatic conveying pipeline simultaneously;
Or when sampler be initially normal pressure time, the valve near sampler on sampling pipe is then first opened during sampling, the rear valve slowly opened near high pressure material pneumatic conveying pipeline on sampling pipe, utilize pressure in high pressure material pneumatic conveying pipeline to order about flow direction of material sampler to sample, until after sampler and high pressure material pneumatic conveying pipeline pressure equilibrium;
After B, sampling terminate, close the valve on sampling pipe, and open the blowdown valve in sampler, device to be sampled is let out as after normal pressure, opens the sample that sampling released by discharge valve;
After C, sample are discharged, close discharge valve, open the valve in sweeping wind pipe road, blow off sample residual in sampling pipe;
After D, sampling pipe are blown off, the valve of shut-down purge wind pipeline, opens the discharge valve of sampler, discharges residual sample.
One end of described sampling pipe is communicated with high pressure material pneumatic conveying pipeline, and the other end of sampling pipe is communicated with sampler; Sampling pipe has been arranged in series two valves, the sampling pipe between two valves is connected with the sweeping wind pipe road of band valve.
Described sampler is provided with tensimeter, and tensimeter is for monitoring sampler pressure.
Described sampler top is provided with blowdown valve, and bottom is provided with discharge valve.
Described sampler comprises end socket, cylindrical shell, material trapping assembly, induction pipe, material collection funnel, end socket is fixed on cylinder top, material trapping assembly is fixedly connected on inner barrel, and induction pipe is arranged on the bottom of cylindrical shell, and material collection funnel is fixedly installed in the bottom of cylindrical shell; End socket upper end connects blowdown valve, and the lower end of material collection funnel connects discharge valve, and induction pipe connects sampling pipe.
During sampling, the material sample of sampling and the potpourri of conveying gas enter sampler from induction pipe, be captured in sampler by sample, and the conveying gas after filtering are discharged through blowdown valve through material trapping assembly; In addition, in sweep gas and sampling pipe, the potpourri of residual sample also enters sampler from induction pipe.
Described material trapping assembly is cloth bag, or porous metal filter, and welding manner can be adopted to fix.
Described cylindrical shell is divided into upper and lower two parts, and is fixed by Flange joint.
The present invention well solves high pressure material pneumatic conveying pipeline problem of sampling, and its beneficial effect is as follows:
1, utilize the pressure in high pressure material pneumatic conveying pipeline to order about flow direction of material sampler, eliminate extrinsic motive equipment, sampler structure simplifies greatly;
2, sampling pipe is connected with high pressure material pneumatic conveying pipeline, can collect more sample at short notice;
3, use purging wind, residual sample in sampling pipe can be cleared up, guarantee the accuracy of lower sub-sampling;
4, spent material trapping assembly, when sampling, sample can not be diffused in environment;
5, valve is used to control sampling process, simple and convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is sampler structure schematic diagram of the present invention
Wherein, Reference numeral is: 1 sampler; 2 tensimeters; 3 sampling pipes; 4 sweeping wind pipe roads; 5 high pressure material pneumatic conveying pipelines; F01 is near the sampling pipe valve of sampler side; F02 sweeping wind pipe road valve; F03 is near the valve of conveyance conduit side; F04 discharge valve; F05 blowdown valve; 6 material collection funnels; 7 induction pipes; 8 flanges; 9 material trapping assemblies; 10 cylindrical shells; 11 end sockets.
Embodiment
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail.
embodiment 1
Sampling process of the present invention is as follows: before sampling, opening valve F02, being pressurized to high pressure material pneumatic conveying pipeline 5 pressure, Open valve F01 and F03 during sampling by purging wind, open blowdown valve F05 gradually, discharge gas in sampler 1 thus sample from high pressure material pneumatic conveying pipeline 5.After sampling terminates, valve-off F03, device 1 to be sampled is let out as after normal pressure, opens discharge valve F04 and releases sample.After sample is discharged, close discharge valve F04, then Open valve F02, utilize and purge residual sample in the clean sampling pipe 3 of wind.After sampling pipe 3 blows off, valve-off F02.Open discharge valve F04, after discharging sample, close discharge valve F04 and F05.
According to Fig. 1, one end of sampling pipe 3 is communicated with high pressure material pneumatic conveying pipeline 5, and the other end of sampling pipe 3 is communicated with sampler 1; Sampling pipe 3 has been arranged in series two valves F01, F03, the sampling pipe 3 between two valves F01, F03 is connected with the sweeping wind pipe road 4 of band valve F02.
Described sampler 1 is provided with tensimeter 2, and tensimeter 2 is for monitoring sampler 1 pressure.
Described sampler 1 top is provided with blowdown valve F05, and bottom is provided with discharge valve F04.
As shown in Figure 2, described sampler 1 comprises end socket 12, cylindrical shell 10, material trapping assembly 9, induction pipe 7, material collection funnel 6, end socket 12 is fixed on cylindrical shell 10 top, it is inner that material trapping assembly 9 is fixedly connected on cylindrical shell 10, induction pipe 7 is arranged on the bottom of cylindrical shell 10, and material collection funnel 6 is fixedly installed in the bottom of cylindrical shell 10; End socket 12 upper end connects blowdown valve F05, and the lower end of material collection funnel 6 connects discharge valve F04, and induction pipe 7 connects sampling pipe 3.During sampling, the material sample of sampling and the potpourri of conveying gas enter sampler 1 from induction pipe 7, be captured in sampler 1 by sample, and the conveying gas after filtering are discharged through blowdown valve F05 through material trapping assembly 9; In addition, in sweep gas and sampling pipe 3, the potpourri of residual sample also enters sampler 1 from induction pipe 7.
Described material trapping assembly 9 is cloth bag, or porous metal filter, and welding manner can be adopted to fix.
Described cylindrical shell 10 is divided into upper and lower two parts, and is connected and fixed by flange 8.
embodiment 2
Sampling process of the present invention is as follows: sampler 1 is initially normal pressure, and then first Open valve F01 during sampling, rear slow Open valve F03, utilizes the pressure in high pressure material pneumatic conveying pipeline 5 to order about flow direction of material sampler 1.Until after sampler 1 and high pressure material pneumatic conveying pipeline 5 pressure equilibrium, sampling terminates, valve-off F03.Sampler 1 is let out as after normal pressure through blowdown valve F05, opens discharge valve F04 and releases sample.After sample is discharged, close discharge valve F04, then Open valve F02, utilize and purge residual sample in the clean sampling pipe 3 of wind.After sampling pipe 3 blows off, valve-off F02.Open discharge valve F04, after discharging sample, close discharge valve F04 and F05.
According to Fig. 1, one end of described sampling pipe 3 is communicated with high pressure material pneumatic conveying pipeline 5, and the other end of sampling pipe 3 is communicated with sampler 1; Sampling pipe 3 has been arranged in series two valves, the sampling pipe 3 between two valves is connected with the sweeping wind pipe road 4 of band valve.
Described sampler 1 is provided with tensimeter 2, and tensimeter 2 is for monitoring sampler 1 pressure.
Described sampler 1 top is provided with blowdown valve F05, and bottom is provided with discharge valve F04.
As shown in Figure 2, described sampler 1 comprises end socket 12, cylindrical shell 10, material trapping assembly 9, induction pipe 7, material collection funnel 6, end socket 12 is fixed on cylindrical shell 10 top, it is inner that material trapping assembly 9 is fixedly connected on cylindrical shell 10, induction pipe 7 is arranged on the bottom of cylindrical shell 10, and material collection funnel 6 is fixedly installed in the bottom of cylindrical shell 10; End socket 12 upper end connects blowdown valve F05, and the lower end of material collection funnel 6 connects discharge valve F04, and induction pipe 7 connects sampling pipe 3.During sampling, the material sample of sampling and the potpourri of conveying gas enter sampler 1 from induction pipe 7, be captured in sampler 1 by sample, and the conveying gas after filtering are discharged through blowdown valve F05 through material trapping assembly 9; In addition, in sweep gas and sampling pipe 3, the potpourri of residual sample also enters sampler 1 from induction pipe 7.
Described material trapping assembly 9 is cloth bag, or porous metal filter, and welding manner can be adopted to fix.
Described cylindrical shell 10 is divided into upper and lower two parts, and is connected and fixed by flange 8.
Claims (4)
1., for a sampling method for high pressure material pneumatic conveying pipeline, it is characterized in that sampling flowsheet is:
A, before sampling, first by sweeping wind pipe road (4), pressurising is carried out to high pressure material pneumatic conveying pipeline (5), two valves on sampling pipe (3) are opened during sampling, and the blowdown valve opened gradually in sampler (1), discharge the gas in sampler (1) by blowdown valve, sample from high pressure material pneumatic conveying pipeline (5) simultaneously;
Or when sampler (1) be initially normal pressure time, sampling pipe (3) the upper valve near sampler (1) is then first opened during sampling, slowly open the upper valve near high pressure material pneumatic conveying pipeline (5) of sampling pipe (3) afterwards, utilize high pressure material pneumatic conveying pipeline (5) interior pressure to order about flow direction of material sampler (1) to sample, until after sampler (1) and high pressure material pneumatic conveying pipeline (5) pressure equilibrium, sampling terminates;
After B, sampling terminate, close the valve on sampling pipe (3), and open the blowdown valve in sampler (1), device to be sampled (1) is let out as after normal pressure, opens the sample that sampling released by discharge valve;
After C, sample are discharged, close discharge valve, open the valve in sweeping wind pipe road (4), blow off sample residual in sampling pipe (3);
After D, sampling pipe (3) are blown off, the valve of shut-down purge wind pipeline (4), opens the discharge valve of sampler (1), discharges residual sample;
One end of described sampling pipe (3) is communicated with high pressure material pneumatic conveying pipeline (5), and the other end of sampling pipe (3) is communicated with sampler (1); Sampling pipe (3) has been arranged in series two valves, the sampling pipe (3) between two valves is connected with the sweeping wind pipe road (4) of band valve; Described sampler (1) top is provided with blowdown valve, and bottom is provided with discharge valve; Described sampler (1) is provided with tensimeter (2), tensimeter (2) is for monitoring sampler (1) pressure.
2. sampling method according to claim 1, it is characterized in that: described sampler (1) comprises end socket (11), cylindrical shell (10), material trapping assembly (9), induction pipe (7), material collection funnel (6), end socket (11) is fixed on cylindrical shell (10) top, it is inner that material trapping assembly (9) is fixedly connected on cylindrical shell (10), induction pipe (7) is arranged on the bottom of cylindrical shell (10), and material collection funnel (6) is fixedly installed in the bottom of cylindrical shell (10); End socket (11) upper end connects blowdown valve, and the lower end of material collection funnel (6) connects discharge valve, and induction pipe (7) connects sampling pipe (3); During sampling, the material sample of sampling and the potpourri of conveying gas enter sampler (1) from induction pipe (7), be captured in sampler (1) by sample, and the conveying gas after filtering are discharged through blowdown valve through material trapping assembly (9); In addition, the potpourri of sweep gas and sampling pipe (3) interior residual sample also enters sampler (1) from induction pipe (7).
3. sampling method according to claim 2, is characterized in that: described material trapping assembly (9) is cloth bag, or porous metal filter.
4. sampling method according to claim 2, is characterized in that: described cylindrical shell (10) is divided into upper and lower two parts, and is connected and fixed by flange (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454876.XA CN102494919B (en) | 2011-12-30 | 2011-12-30 | A kind of sampling method for high pressure material pneumatic conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454876.XA CN102494919B (en) | 2011-12-30 | 2011-12-30 | A kind of sampling method for high pressure material pneumatic conveying pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102494919A CN102494919A (en) | 2012-06-13 |
| CN102494919B true CN102494919B (en) | 2015-08-26 |
Family
ID=46186761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110454876.XA Active CN102494919B (en) | 2011-12-30 | 2011-12-30 | A kind of sampling method for high pressure material pneumatic conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102494919B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043814B (en) * | 2015-07-01 | 2017-11-28 | 阿拉山口出入境检验检疫局综合技术服务中心 | A kind of liquefied petroleum gas samples sample mix device |
| CN109297753A (en) * | 2018-07-09 | 2019-02-01 | 张家港市威尔润机械制造有限公司 | A kind of novel pipe powder ash automatic sampling system and its method |
| CN109612785A (en) * | 2019-02-22 | 2019-04-12 | 大连中汇泰昌电力环保工程有限公司 | Dissipate the full-automatic unmanned sampling apparatus on duty of material |
| CN109975069B (en) * | 2019-04-23 | 2024-04-05 | 浙江海洋大学 | LNG on-line sampling detection system |
| CN110108518B (en) * | 2019-06-05 | 2024-01-05 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Airflow sampling method and device for grains in grain depot |
| CN110186720A (en) * | 2019-06-28 | 2019-08-30 | 攀钢集团钛业有限责任公司 | Titanium white chloride aoxidizes outlet of still sampler |
| CN110608922A (en) * | 2019-09-10 | 2019-12-24 | 北京建筑大学 | Liquid sample vacuum collecting device and control method |
| CN111175083A (en) * | 2020-01-07 | 2020-05-19 | 蒋汉英 | Sampling equipment for cement production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056962A (en) * | 1988-12-27 | 1991-10-15 | Kyowa Hakko Kogyo Co., Ltd. Kabushiki Kaisha Matsui Seisakusho | Method of sampling solid materials and sampling system to execute the method |
| US5074158A (en) * | 1990-08-03 | 1991-12-24 | Hajime Industries Ltd. | Powder granule sample inspection apparatus |
| CN2253475Y (en) * | 1995-09-20 | 1997-04-30 | 宝山钢铁(集团)公司 | Powder coal sampler |
| CN201269828Y (en) * | 2008-08-22 | 2009-07-08 | 华东电力试验研究院有限公司 | Isokinetic sampling liquid and powder sampling device |
| CN202453210U (en) * | 2011-12-30 | 2012-09-26 | 中国东方电气集团有限公司 | Sampling device used for high-pressure material pneumatic carrier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201464231U (en) * | 2009-07-31 | 2010-05-12 | 西安科灵节能环保仪器有限公司 | Pulverized coal piping sampling system |
| CN201885904U (en) * | 2010-11-26 | 2011-06-29 | 株洲硬质合金集团有限公司 | High-temperature material sampler under positive pressure |
-
2011
- 2011-12-30 CN CN201110454876.XA patent/CN102494919B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056962A (en) * | 1988-12-27 | 1991-10-15 | Kyowa Hakko Kogyo Co., Ltd. Kabushiki Kaisha Matsui Seisakusho | Method of sampling solid materials and sampling system to execute the method |
| US5074158A (en) * | 1990-08-03 | 1991-12-24 | Hajime Industries Ltd. | Powder granule sample inspection apparatus |
| CN2253475Y (en) * | 1995-09-20 | 1997-04-30 | 宝山钢铁(集团)公司 | Powder coal sampler |
| CN201269828Y (en) * | 2008-08-22 | 2009-07-08 | 华东电力试验研究院有限公司 | Isokinetic sampling liquid and powder sampling device |
| CN202453210U (en) * | 2011-12-30 | 2012-09-26 | 中国东方电气集团有限公司 | Sampling device used for high-pressure material pneumatic carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102494919A (en) | 2012-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102494919B (en) | A kind of sampling method for high pressure material pneumatic conveying pipeline | |
| CN103471780B (en) | Airtight container end cap weld inspection system and detection method | |
| CN202453210U (en) | Sampling device used for high-pressure material pneumatic carrier | |
| CN207636360U (en) | A kind of clear tank instrument of double pump | |
| CN109141988A (en) | Fixed-contamination source emission flue gas continuous detecting system | |
| CN202277947U (en) | Pressure type powder injection device | |
| CN108168963A (en) | A kind of multifunctional gas sampling apparatus and its method | |
| CN204903240U (en) | From evacuation sample connecting device | |
| CN107096771A (en) | A kind of ship pipeline compressed air is purged automatically, inspection method | |
| CN207102175U (en) | A kind of dust-removal cloth-bag leak test device | |
| CN220207158U (en) | Coal dust sampling device capable of avoiding dust emission | |
| CN220339750U (en) | Manual coal dust sampling device | |
| CN208953339U (en) | Fixed-contamination source emission flue gas continuous detecting system | |
| CN209189442U (en) | Ball collecting device | |
| CN206638471U (en) | A kind of flue gas VOCs sample devices | |
| CN204269442U (en) | With the sampling probe of positive blowpipe | |
| CN202403949U (en) | Closed sampler | |
| AU2011220344B2 (en) | Air fibre testing apparatus | |
| CN202049150U (en) | Analyzer for detecting gas in process pipeline | |
| CN215923740U (en) | Negative pressure blowing device | |
| CN219712718U (en) | Tail pressure release structure of pressure pipeline of tire dynamic balance equipment | |
| CN204944902U (en) | A kind of waste gas sampling device | |
| CN201080248Y (en) | Dry powder automatic filling machine for extinguisher | |
| CN215894139U (en) | Fly ash online sampling device for pulverized coal gasification furnace | |
| CN217404091U (en) | Salt fog test box automatic salt fog filtering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180425 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: Dongfang Electric Co., Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: Dongfang Electric Corporation |