CN105107302A - Cloth bag leakage detecting device for cloth bag dust collector and leakage detecting method of cloth bag leakage detecting device - Google Patents
Cloth bag leakage detecting device for cloth bag dust collector and leakage detecting method of cloth bag leakage detecting device Download PDFInfo
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- CN105107302A CN105107302A CN201510595582.7A CN201510595582A CN105107302A CN 105107302 A CN105107302 A CN 105107302A CN 201510595582 A CN201510595582 A CN 201510595582A CN 105107302 A CN105107302 A CN 105107302A
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Abstract
The invention relates to a cloth bag leakage detecting device for a cloth bag dust collector and belongs to the technical field of cloth bag dust collectors. The cloth bag leakage detecting device for the cloth bag dust collector is characterized in that a dust concentration detector is arranged at a smoke outlet of the cloth bag dust collector and provided with a dust concentration signal collecting device, the dust concentration signal collecting device is connected with a dust concentration analyzing device, and the dust concentration analyzing device is connected with a control system. The control system receives reverse blowing pulse signals of a gas storage bag of the cloth bag dust collector, the dust concentration of a corresponding smoke channel is collected and analyzed online through the dust concentration detector and the dust concentration analyzing device, and when the dust concentration of a certain smoke channel is larger than a preset value, the control system controls a corresponding pulse valve for blowing.
Description
Technical field
The present invention relates to a kind of sack cleaner cloth bag leakage detection apparatus, belong to Technology of Fabric Filter field.
Background technology
The structure of sack cleaner is made up of pulse backblowing part, upper box, middle casing, lower box and ash bucket etc.Sack cleaner operation principle is that ash-laden gas enters lower box, middle casing by sack cleaner air inlet, enter in the process of upper box by filter bag of dust collector, because dusty gas is separated by the effect effect of filter bag, dust is attracted on dust-removal cloth-bag outer surface, and gas enters upper box through filter bag, discharge from exhaust outlet.
Dusty gas is by the purification process of dust-removal cloth-bag, along with the increase of time, the dust amassed on filter bag outer surface gets more and more, thus the resistance of filter bag increases gradually, reduced gradually by the gas flow of filter bag, in order to make deduster normally work, so draught control (will be generally the 120-150 millimeter of water) in limited range.In deduster running, when resistance is raised to limited range time, send instruction, control system drives blowback pulse valve in order, compressed air in gas storage bag is ejected in the filter bag of each correspondence by injection tube, filter bag sharply expands under air-flow moment acting in opposition, and make to amass the dust releasing on filter bag surface, filter bag is regenerated.The dust be eliminated falls into ash bucket, because the long-pending dust be attached on filter bag is regularly removed, cleaned gas normal through, ensure that deduster normally works.
In the course of work of sack cleaner, the situation that cloth bag breakage is leaked can be there is unavoidably, once there is this situation, the effect of bag-type dust will reduce greatly, the counter-measure of prior art is generally frequently change cloth bag, or loading silver powder, sees the quantity of the silver powder of each gas outlet ejection after filtering, has judged whether that cloth bag is damaged successively.
Summary of the invention
The technical issues that need to address of the present invention are: existing sack cleaner does not also have strict judgement and counter-measure for the damage of cloth bag, cause flue gas exhaust mouth concentration over-standard to happen occasionally, or cloth bag is changed too frequent, causes waste.
The present invention takes following technical scheme:
A kind of sack cleaner cloth bag leakage detection apparatus, the smoke outlet of described sack cleaner arranges dust concentration detector, described dust concentration detector is provided with dust concentration signal pickup assembly, described dust concentration signal pickup assembly is connected with dust concentration analytical equipment, and described dust concentration analytical equipment is connected with control system; Described control system receives the pulse signal of sack cleaner gas storage bag blowback, respectively the dust concentration of corresponding exhaust gases passes is gathered and on-line analysis by dust concentration detector and dust concentration analytical equipment, when the dust concentration of certain exhaust gases passes is greater than standard value, described control system closes the pulse valve blowing of corresponding exhaust gases passes.
Owing to producing higher dust concentration during the blowback of gas storage bag, dust concentration detector detects in real time to exhaust outlet dust concentration, when dust concentration occurs abnormal, illustrate that the cloth bag in this blowback pulse valve passage there occurs damage or fault, control system locates this blowback pulse valve, thus stop this passage blowback, reduce exhaust outlet dust emission concentration.
Further, described sack cleaner cloth bag leakage detection apparatus also comprises alarm and alarm screen, and when the pulse valve blowing of corresponding exhaust gases passes is closed, described alarm equipment alarm also records this pulse valve numbering and position on picture.
A leak hunting method for sack cleaner cloth bag leakage detection apparatus, is characterized in that, comprise the following steps:
A) control system receives the pulse signal of each exhaust gases passes;
B) dust concentration detector gathers dust concentration signal and is translated into standard electric signal;
C) signal analysis device analyzes described standard electric signal, and generates the tendency chart of real-time concentration numerical value;
D) described real-time concentration numerical value and standard value compare by control system, when described real-time concentration numerical value is greater than described standard value;
E) pulse valve blowing of corresponding exhaust gases passes is blocked.
Further, when described signal analysis device is analyzed, according to deduster import dust parameter, algorithm compensation is carried out to gas temperature, humidity, flow velocity in deduster, generate corresponding real-time dust concentration numerical value and standard value.
Further, described signal analysis device carries out stores archive to data, forms real-time tendency and historical trend.
Beneficial effect of the present invention is:
1) real-time monitoring has been carried out to exhaust outlet exhaust gas dust concentration, and the problematic pulse valve blowing of positive closing, ensure that the clean-up performance that exhaust outlet flue gas is discharged.
2) only need a flue gas concentration detector, utilize pulse to adopt analysis successively, structure is simple, easy to implement; Mobile concentration detector detects position, and the bag that can detect any dirt pocket leaks situation, and configuration is simple, and cost is low, and controlled concentration discharge effect is large
3) utilize the blowback of sack cleaner gas storage bag to produce larger dust concentration, particularly the damaged cloth bag with leaking gas, produces uncommon dust concentration, is conducive to seizure and the analysis of signal, improves the order of accuarcy of detection.
4) flutter and catch and lock damaged cloth bag, the reasonable arrangement repair time, avoid the situation too frequently changing filter bag in prior art, reduce cost.Avoid scheduling of production and can not shut down the situation causing and discharge the contaminated environment that exceeds standard.
5) without the need to adopting silver powder, the operation easier of detection is reduced.
6) when adopting signal analysis device to analyze, carry out algorithm compensation to gas temperature, humidity, flow velocity in deduster, generate corresponding real-time dust concentration numerical value, accuracy of detection is higher.Dust concentration real-time curve and history curve keeping records, be conducive to the operating analysis to cleaner, as configuration communication apparatus can remote monitoring dust concentration discharge, improves environmental management means.
7) realize targetedly to the replacing of impaired cloth bag, and do not need once to change all cloth bags, reduce cost, reduce dust to the actual bodily harm changing cloth bag personnel.
Accompanying drawing explanation
Fig. 1 is the structural representation of this sack cleaner.
Fig. 2 is the system diagram of sack cleaner cloth bag leakage detection apparatus of the present invention.
Fig. 3 is the leak detection flow chart of sack cleaner cloth bag leakage detection apparatus of the present invention.
In figure, 1. gas storage bag, 2. blowback pulse valve, 3. upper box, 4. concentration detector, 5. cloth bag, casing 6., 7. lower box, 8. hopper wall vibrator, 9. unloading valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
See Fig. 1-Fig. 3; ash-laden gas discharges the cleaning flue gases be up to state standards after the Bag filter of deduster; as cloth bag gas leakage or damaged; ash-laden gas through filtration directly enter upper box discharge, make discharge flue gas exceed national standard and be subject to local environmental protection mechanism punishment even close down production equipment.So the cloth bag of gas leakage must be detected, make repair process in time.
The composition of dust-collecting bag leakage detection apparatus: primarily of dust concentration detector, sampling and analysis of signal device, control system composition.
1. dust concentration detector is arranged on upper box exhaust pipe, and in Real-Time Monitoring discharge duct, flue gas is containing the concentration of dust;
2. sampling and analysis of signal device: the signal receiving dust concentration detector, sample analysis is carried out under the several typical condition condition of deduster, according to deduster import dust concentration, algorithm compensation is carried out to gas temperature, humidity, flow velocity etc. in deduster, stores archive is carried out to data, forms real-time tendency and historical trend;
3. control system: the control system be made up of PLC, effect is and dust cleaner control system communication, obtains the pulse valve signal sequence of blowback, namely corresponding just at the cloth bag of deashing; According to the real-time tendency that dust concentration sampling and analysis of signal device generates, analyze the concentration signal exceeding normal range (NR), just at the pulse valve of blowback when finding out the time point exceeding concentration range, the cloth bag position of location gas leakage or breakage.Send signal to deduster, stop the blowback of this cloth bag, allow this cloth bag be in resting state.
The present invention has carried out real-time monitoring to exhaust outlet exhaust gas dust concentration, and the problematic pulse valve blowing of positive closing, ensure that the clean-up performance that exhaust outlet flue gas is discharged; Only need arrange a flue gas concentration detector, utilize pulse to adopt analysis successively, structure is simple, easy to implement; Utilize the blowback of sack cleaner gas storage bag to produce larger dust concentration, be conducive to seizure and the analysis of signal, improve the order of accuarcy of detection; Avoid the situation too frequently changing filter bag in prior art, reduce cost; Without the need to adopting silver powder, reduce the operation easier of detection; When adopting signal analysis device to analyze, carry out algorithm compensation to gas temperature, humidity, flow velocity in deduster, generate corresponding real-time dust concentration numerical value, accuracy of detection is higher.
Claims (5)
1. a sack cleaner cloth bag leakage detection apparatus, is characterized in that:
The smoke outlet of described sack cleaner arranges dust concentration detector, described dust concentration detector is provided with dust concentration signal pickup assembly, described dust concentration signal pickup assembly is connected with dust concentration analytical equipment, and described dust concentration analytical equipment is connected with control system;
Described control system receives the pulse signal of sack cleaner gas storage bag blowback, respectively the dust concentration of corresponding exhaust gases passes is gathered and on-line analysis by dust concentration detector and dust concentration analytical equipment, when the dust concentration of exhaust outlet is greater than standard value, described control system closes the pulse valve blowing of corresponding exhaust gases passes.
2. sack cleaner cloth bag leakage detection apparatus as claimed in claim 1, it is characterized in that: described sack cleaner cloth bag leakage detection apparatus also comprises that flue gas concentration detection curve stores, shows, the display screen of the alarm screen that exceeds standard, as flue gas concentration exceedes setting value, when the pulse valve blowing of corresponding exhaust gases passes is closed, the pulse valve numbering that described alarm equipment alarm and alarm screen record are closed and position.
3. a leak hunting method for sack cleaner cloth bag leakage detection apparatus according to claim 1, is characterized in that, comprise the following steps:
A) control system receives the pulse signal of each exhaust gases passes;
B) dust concentration detector gathers dust concentration signal and is translated into standard electric signal;
C) signal analysis device analyzes described standard electric signal, and generates the tendency chart of real-time concentration numerical value;
D) described real-time concentration numerical value and setting value compare by control system, when described real-time concentration numerical value is greater than described setting value;
E) pulse valve blowing of corresponding exhaust gases passes is blocked.
4. leak hunting method as claimed in claim 3, is characterized in that, comprise the following steps:
When described signal analysis device is analyzed, according to deduster import dust parameter, algorithm compensation is carried out to gas temperature, humidity, flow velocity in deduster, generate corresponding real-time dust concentration numerical value and standard value.
5. leak hunting method as claimed in claim 3, is characterized in that, comprise the following steps: described signal analysis device carries out stores archive to data, form real-time tendency and historical trend, actual flue gas concentration compares with standard value, and orientation blowback pulse valve finds leakage cloth bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595582.7A CN105107302A (en) | 2015-09-18 | 2015-09-18 | Cloth bag leakage detecting device for cloth bag dust collector and leakage detecting method of cloth bag leakage detecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595582.7A CN105107302A (en) | 2015-09-18 | 2015-09-18 | Cloth bag leakage detecting device for cloth bag dust collector and leakage detecting method of cloth bag leakage detecting device |
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| CN105107302A true CN105107302A (en) | 2015-12-02 |
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| CN201510595582.7A Pending CN105107302A (en) | 2015-09-18 | 2015-09-18 | Cloth bag leakage detecting device for cloth bag dust collector and leakage detecting method of cloth bag leakage detecting device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907458A (en) * | 2017-12-21 | 2018-04-13 | 秦皇岛首钢华盛有限公司 | Deduster detection system |
| CN109289380A (en) * | 2018-08-29 | 2019-02-01 | 芜湖鸣人热能设备有限公司 | A kind of bag-type dust equipment |
| CN110124403A (en) * | 2019-06-13 | 2019-08-16 | 苏州协昌环保科技股份有限公司 | Pulse bag type dust collector broken bag intelligent detecting method |
| CN111289039A (en) * | 2020-03-20 | 2020-06-16 | 盐城市纤维检验所 | Dust removal filter bag online detection method |
| CN111479623A (en) * | 2017-12-07 | 2020-07-31 | 新东工业株式会社 | Dust collecting device and method for detecting breakage of filter in dust collecting device |
| CN111558261A (en) * | 2020-05-26 | 2020-08-21 | 徐立军 | Energy-saving environment-friendly air purification device for building engineering construction and purification method thereof |
| CN112191043A (en) * | 2020-10-20 | 2021-01-08 | 天津大学 | Low-cost bag-type dust collector intelligent leakage detection monitoring system |
| CN116688664A (en) * | 2023-05-10 | 2023-09-05 | 盐城市群盛环保设备有限公司 | Cloth bag supporting device of pulse type back-blowing dust remover |
| CN117679868A (en) * | 2023-12-08 | 2024-03-12 | 湖州槐坎南方水泥有限公司 | Leakage accurate positioning system and method for bag-type dust collector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202006068U (en) * | 2011-03-09 | 2011-10-12 | 四川启明星铝业有限责任公司 | Bag-leaking positioning device of pulse dust remover |
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2015
- 2015-09-18 CN CN201510595582.7A patent/CN105107302A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202006068U (en) * | 2011-03-09 | 2011-10-12 | 四川启明星铝业有限责任公司 | Bag-leaking positioning device of pulse dust remover |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111479623A (en) * | 2017-12-07 | 2020-07-31 | 新东工业株式会社 | Dust collecting device and method for detecting breakage of filter in dust collecting device |
| CN107907458A (en) * | 2017-12-21 | 2018-04-13 | 秦皇岛首钢华盛有限公司 | Deduster detection system |
| CN107907458B (en) * | 2017-12-21 | 2024-05-10 | 河北首钢京唐机械有限公司 | Dust remover detecting system |
| CN109289380A (en) * | 2018-08-29 | 2019-02-01 | 芜湖鸣人热能设备有限公司 | A kind of bag-type dust equipment |
| CN110124403A (en) * | 2019-06-13 | 2019-08-16 | 苏州协昌环保科技股份有限公司 | Pulse bag type dust collector broken bag intelligent detecting method |
| CN111289039A (en) * | 2020-03-20 | 2020-06-16 | 盐城市纤维检验所 | Dust removal filter bag online detection method |
| CN111558261A (en) * | 2020-05-26 | 2020-08-21 | 徐立军 | Energy-saving environment-friendly air purification device for building engineering construction and purification method thereof |
| CN112191043A (en) * | 2020-10-20 | 2021-01-08 | 天津大学 | Low-cost bag-type dust collector intelligent leakage detection monitoring system |
| CN116688664A (en) * | 2023-05-10 | 2023-09-05 | 盐城市群盛环保设备有限公司 | Cloth bag supporting device of pulse type back-blowing dust remover |
| CN117679868A (en) * | 2023-12-08 | 2024-03-12 | 湖州槐坎南方水泥有限公司 | Leakage accurate positioning system and method for bag-type dust collector |
| CN117679868B (en) * | 2023-12-08 | 2024-06-04 | 湖州槐坎南方水泥有限公司 | Leakage accurate positioning system and method for bag-type dust collector |
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Application publication date: 20151202 |