CN1995927A - Blasting type back flushing method - Google Patents
Blasting type back flushing method Download PDFInfo
- Publication number
- CN1995927A CN1995927A CN 200610134607 CN200610134607A CN1995927A CN 1995927 A CN1995927 A CN 1995927A CN 200610134607 CN200610134607 CN 200610134607 CN 200610134607 A CN200610134607 A CN 200610134607A CN 1995927 A CN1995927 A CN 1995927A
- Authority
- CN
- China
- Prior art keywords
- filtrator
- type back
- filter
- control device
- blowing method
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005422 blasting Methods 0.000 title claims abstract description 4
- 238000011010 flushing procedure Methods 0.000 title abstract 2
- 238000004146 energy storage Methods 0.000 claims abstract description 6
- 238000010926 purge Methods 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 8
- 239000002360 explosive Substances 0.000 claims description 8
- 238000009991 scouring Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a blasting type back flushing method, wherein a process pipeline is connected with a filter, a heater is arranged outside the filter, and electromagnetic valves SV1 and SV3 are arranged between the heater and an analytical instrument; electromagnetic valves SV2 and SV4 are connected between the electromagnetic valves SV1 and SV3, the other end of the electromagnetic valve SV2 is connected with a filter, the other end of the electromagnetic valve SV4 is connected with a nitrogen energy storage tank, and an electric control pneumatic ball valve SV5 is additionally arranged between a process pipeline and the filter. The advantage is that it is effectual to sweep. The mode improves the operation rate of the equipment, reduces the failure rate of the equipment, ensures the stable operation of the equipment, improves the economic benefit and reduces the labor intensity of maintenance personnel.
Description
Technical field
The present invention relates to industrial online gas element analyzer table applied technical field, can be widely used in the stable operation of the analysis meter under various complicated technology conditions.
Background technology
At present domestic industry is with the sample gas pretreatment unit of online gas element analyzer table, the sampling mode that adopts sample gas to filter more, and the cleaning of filtrator adopts blow-back to sweep mode, and the blowback mode of sweeping has two kinds: 1, continuous purging to filtrator; 2, add the purging of pulsating continuously to filtrator.
The shortcoming that above-mentioned two kinds of blowback modes of sweeping exist is: the energy when purge gas arrives the filtration outer core has dropped to very low, the foul that is suspended to outer wall can not be blown off, and the time one is long, will cause plugged filter, has influenced the stable operation of analysis meter.
Summary of the invention
The purpose of this invention is to provide a kind of explosive type back-blowing method, this method can be removed the foul on the filtrator effectively, improves the running rate of equipment, reduces equipment failure rate, guarantees equipment stable operation, increases economic efficiency, and reduces maintainer's labour intensity.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of explosive type back-blowing method, it is characterized in that: this method is to set up control device between process pipe (1) and filtrator (2), this control device forms passage for making process pipe, filtrator and energy storage canister, and can make gas energy storage in the filtrator, and can abrupt release and the device that can carry out repeatedly, purge gas forms high pressure conditions in filtrator after, with the energy abrupt release, this process is carried out repeatedly, makes attached to the foul on the filtrator outer wall to be fallen by powerful airflow scouring.
Described control device is the ecp ball valve.
The beneficial effect that the present invention compared with prior art has is:
Before the improvement, to crossing the purging of filter core, the energy when arriving the filtration outer core owing to purge gas has dropped to very low, the foul that is suspended to outer wall can not be blown off, and the time one is long, will cause plugged filter.After the improvement, will overcome the drawback before improving, when SV5 closed, in filtrator, SV5 opened with the purge gas storage, with the energy abrupt release, made attached to the foul on the filtrator outer wall to be fallen by powerful airflow scouring, had therefore reached the purging effect.This mode improves the running rate of equipment, reduces equipment failure rate, guarantees equipment stable operation, increases economic efficiency, and reduces maintainer's labour intensity.
Description of drawings
Fig. 1 is a kind of schematic diagram of explosive type back-blowing method.
Embodiment
See Fig. 1, a kind of explosive type back-blowing method, process pipe 1 connects filtrator 2, and filtrator 2 outsides are provided with well heater 3, establish solenoid valve SV1, SV3 between filtrator 2 and the analytical instrument 5; Be connected to solenoid valve SV2, SV4 between solenoid valve SV1, SV3, the other end of solenoid valve SV2 links to each other with filtrator, and the other end of solenoid valve SV4 links to each other with nitrogen energy storage canister 4, sets up ecp ball valve SV5 between process pipe and filtrator.
Its course of work is described below:
Normal operating condition: solenoid valve SV2, SV4 close, and SV1, SV3, SV5 open, and sample gas enters in the analytical instrument through filter.
State is swept in blowback: (blowback is swept control and controlled by Programmable Logic Controller)
1), blasting type purged filter core: solenoid valve SV2, SV3 close, and SV1, SV4 open, and SV5 opened, closes once in every interval in 5 seconds, and after continuous 5 times (can adjust), SV5 often opens.
2), continous way purges filtrator: solenoid valve SV3 closes, and SV1, SV2, SV4, SV5 open.
Claims (3)
1, a kind of explosive type back-blowing method, it is characterized in that: this method is to set up control device between process pipe (1) and filtrator (2), this control device forms passage for making process pipe, filtrator and energy storage canister, and can make gas energy storage in the filtrator, and can abrupt release and the device that can carry out repeatedly, purge gas forms high pressure conditions in filtrator after, with the energy abrupt release, this process is carried out repeatedly, makes attached to the foul on the filtrator outer wall to be fallen by powerful airflow scouring.
2, a kind of explosive type back-blowing method according to claim 1 is characterized in that: described control device is the ecp ball valve.
3, a kind of explosive type back-blowing method according to claim 1, it is characterized in that: blowback is swept control and is controlled by Programmable Logic Controller;
1), blasting type purged filter core: solenoid valve SV2, SV3 close, and SV1, SV4 open, and SV5 opened, closes once in every interval in 5 seconds, and after continuous 5 times, SV5 often opens;
2), continous way purges filtrator: solenoid valve SV3 closes, and SV1, SV2, SV4, SV5 open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610134607 CN1995927A (en) | 2006-12-08 | 2006-12-08 | Blasting type back flushing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610134607 CN1995927A (en) | 2006-12-08 | 2006-12-08 | Blasting type back flushing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1995927A true CN1995927A (en) | 2007-07-11 |
Family
ID=38251075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610134607 Pending CN1995927A (en) | 2006-12-08 | 2006-12-08 | Blasting type back flushing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1995927A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733262B (en) * | 2008-11-18 | 2011-07-27 | 中冶天工建设有限公司 | Method for purging gas pipeline by using gas supercharge blasting method |
| CN102778264A (en) * | 2012-08-10 | 2012-11-14 | 南京钢铁股份有限公司 | Automatic blowing device of converter flue gas flowmeter and control method thereof |
| CN107100742A (en) * | 2017-06-12 | 2017-08-29 | 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 method that use pressure differential method controls filter core back-blowing device |
-
2006
- 2006-12-08 CN CN 200610134607 patent/CN1995927A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733262B (en) * | 2008-11-18 | 2011-07-27 | 中冶天工建设有限公司 | Method for purging gas pipeline by using gas supercharge blasting method |
| CN102778264A (en) * | 2012-08-10 | 2012-11-14 | 南京钢铁股份有限公司 | Automatic blowing device of converter flue gas flowmeter and control method thereof |
| CN107100742A (en) * | 2017-06-12 | 2017-08-29 | 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 method that use pressure differential method controls filter core back-blowing device |
| CN107100742B (en) * | 2017-06-12 | 2018-12-14 | 中国大唐集团科学技术研究院有限公司华东分公司 | A method of filter core back-blowing device is controlled using pressure differential method |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |