CN106546384A - A kind of transverse pipe initial cooler leakage inspection method - Google Patents
A kind of transverse pipe initial cooler leakage inspection method Download PDFInfo
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- CN106546384A CN106546384A CN201510591011.6A CN201510591011A CN106546384A CN 106546384 A CN106546384 A CN 106546384A CN 201510591011 A CN201510591011 A CN 201510591011A CN 106546384 A CN106546384 A CN 106546384A
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- China
- Prior art keywords
- primary cooler
- hypomere
- cooler
- water
- sealed tank
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Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007689 inspection Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 30
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- MGCQZNBCJBRZDT-UHFFFAOYSA-N midodrine hydrochloride Chemical compound [H+].[Cl-].COC1=CC=C(OC)C(C(O)CNC(=O)CN)=C1 MGCQZNBCJBRZDT-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of transverse pipe initial cooler leakage inspection method, searches leak source to primary cooler hypomere, primary cooler epimere, primary cooler tube bank, when judging primary cooler hypomere respectively：Primary cooler hypomere condensate pump is stopped, the hypomere condensed fluid of every primary cooler is closed and is cleaned ammonia, observe hypomere primary cooler hypomere water sealed tank to flow size, the primary cooler for flowing maximum is the primary cooler of leakage；The primary cooler gas exit valve is turned off, while being vented primary cooler hypomere water at low temperature, hypomere water sealed tank is then observed come the situation of flowing, if hypomere water sealed tank is no longer flowing, it is determined that primary cooler hypomere is leaked；Present invention achieves leakage detection thoroughly purpose, shortens primary cooler maintenance duration, disposably can go out one section of primary cooler leak complete inspection, the leakage detection time is saved significantly, remarkable in economical benefits, security risk are substantially reduced.
Description
Technical field
The present invention relates to a kind of transverse pipe initial cooler leakage inspection method.
Background technology
In process of coking, air blast operation ammonia vol increases suddenly or slow rise, it is necessary to which whole ammonia system is arranged
Look into, it is determined whether have the unnecessary water yield to enter in ammonia system.Inside primary cooler, three sections are water-cooled cooling, most probable
What leakage occurred is exactly primary cooler, how primary cooler leakage to be investigated by technique, confirms which platform primary cooler is leaked simultaneously
And which section leakage is the key that technique judges in three sections of water.Equipment is needed to carry out primary cooler after primary cooler leakage preliminary judgement
Maintenance, it is the thorough key for solving quickly to find out which root pipe leakage.
Before, primary cooler leakage detection can only find the situation of a large amount of leakages, and the situation of little leakage be can not check at all, when discovery is let out in a large number
When leakage, each primary cooler is stopped in turn and sees that the method whether remained ammonia amount goes up judges situation about leaking, pipe
Leakage detection is carried out by u-shaped pipe law of connected vessels before beam leakage detection, is connected on water blow-down pipe with a transparent plastic flexible pipe one,
One lift it is highly consistent with primary cooler, will inside primary cooler give upper water, close import penstock, due to primary cooler water pipe
Water after leakage in pipe can be reduced, and when water leaks into leak source, water will stop leakage, according to law of connected vessels, inside pipe
Highly consistent, the rough general location for judging water leakage of the liquid level and outside plastic flexible pipe of water, opens primary cooler water cover plate pair
Inner water tube checked by root, with rubber it is stifled by each water pipe one block, poured water toward in pipe with water pipe, in primary cooler
Manhole has seen whether that water spills below, judges the leakage of water pipe.The method does not apply to north of china in winter, it is adaptable to a large amount of to leak
Situation, the situation of little leakage do not apply to, the method operate it is very slow, it is bothersome laborious, be only applicable to a large amount of leak sources at
When.
The content of the invention
To overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of transverse pipe initial cooler leakage inspection method, saves primary cooler
The time of leakage detection, shorten primary cooler maintenance duration.
For achieving the above object, the present invention is achieved through the following technical solutions：
A kind of transverse pipe initial cooler leakage inspection method, comprises the following steps：
1) segment search leak source under primary cooler：
Primary cooler hypomere condensate pump is stopped, the hypomere condensed fluid of every primary cooler is closed and is cleaned ammonia, at the beginning of observation hypomere
Flowing size, the primary cooler for flowing maximum is the primary cooler of leakage to cooler hypomere water sealed tank；Turn off the primary cooler coal gas to go out
Mouth valve, while being vented primary cooler hypomere water at low temperature, then observes hypomere water sealed tank come the situation of flowing, if hypomere water sealed tank is not
Again flowing, it is determined that primary cooler hypomere is leaked；
2) segment search leak source on primary cooler：
Primary cooler epimere condensed fluid, cleaning ammonia and the sprinkling of top ammonia that outlet valve will be had been switched off is stopped, and observes epimere
Flowing size, if epimere water sealed tank does not carry out flow specification, primary cooler epimere does not leak primary cooler epimere water sealed tank；If to flow, will
Primary cooler recirculated water section is vented, then observes epimere water sealed tank come the situation of flowing, if epimere water sealed tank is no longer flowing, more than primary cooler
Hot water section does not leak；If epimere water sealed tank is still flowing, judge that remaining hot water section is leaked：Recirculated water gateway valve is opened
Send water, observe epimere water sealed tank, if not flowing, recirculated water section is not leaked, and is flowed such as epimere water sealed tank, and recirculated water section is let out
Leakage；
3) leak source is searched in primary cooler tube bank：
Blind plate, the closing of bottom manhole, top exhaust stack closing, in primary cooler bottom manhole are blocked up in primary cooler gas piping gateway
The U that one height liquid seal is 20kPa is installed to seal, and liquid is filled in U envelopes；Nitrogen is passed through in primary cooler shell side, just
In cooler, nitrogen pressure is less than 20kPa；Five senses judgement is crossed to each tube bank Gutron in each bobbin carriage, and uses stethoscope
To judge which root pipe leaks.
Leakage situation is judged with the presence or absence of negative pressure by low temperature water out blow-down pipe, if negative pressure then further confirms that primary cooler
Hypomere is leaked.
Leakage situation is judged with the presence or absence of negative pressure by circulating water outlet blow-down pipe, if negative pressure then further determines that primary cooler
Recirculated water section or the leakage of remaining hot water section.
The liquid summer filled in U envelopes is water, and winter is anti-icing fluid.
Nitrogen pressure in primary cooler is observed by connecing a U-shaped manometer, by switching the adjustment of nitrogen tube shutter size
Nitrogen pressure inside primary cooler.
Compared with prior art, the invention has the beneficial effects as follows：
This method leakage detection thoroughly, shortens primary cooler maintenance duration, can disposably by one section of primary cooler leak complete inspection
Go out, significantly save the leakage detection time, remarkable in economical benefits, security risk are substantially reduced.
Description of the drawings
Fig. 1 is primary cooler artwork.
Fig. 2 is primary cooler hypomere pipe leakage check process figure.
Fig. 3 is primary cooler epimere pipe leakage check process figure.
In figure：1- transverse pipe initial cooler 2- hypomere water sealed tank 3- epimere water sealed tank 4- hypomeres condense liquid bath 5- epimere condensed fluid
Groove 6- hypomere condensate pump 7- ammonia vessels.
Specific embodiment
The present invention is described in detail with reference to Figure of description, it should be noted that the enforcement of the present invention be not limited to
Under embodiment.
See Fig. 1-Fig. 3, a kind of transverse pipe initial cooler leakage inspection method, when finding that primary cooler local water pipe has leakage, can be according to
Up and down the mode of segment search leak source carries out technique lookup, primarily determines that it is which section water pipe of which platform primary cooler there occurs and let out
Leakage, then primary cooler is thoroughly stopped targetedly checked, leak sources are searched by primary cooler all tube banks overall, once
Property determine which tube bank leakage, it is disposable to overhaul, specifically include following steps：
1) segment search leak source under primary cooler：
Primary cooler hypomere condensate pump 6 is stopped, the hypomere condensed fluid of every primary cooler is closed and is cleaned ammonia, observe hypomere
Flowing size, the primary cooler for flowing maximum is the primary cooler of leakage to primary cooler hypomere water sealed tank 2；Turn off the primary cooler coal
Gas outlet valve, while being vented primary cooler hypomere water at low temperature, then observes hypomere water sealed tank 2 come the situation of flowing, if water seal is not
Again flowing, it is determined that primary cooler hypomere is leaked；Leakage feelings can also be judged with the presence or absence of negative pressure by low temperature water out blow-down pipe
Condition, if negative pressure then further confirms that primary cooler hypomere is leaked.
2) segment search leak source on primary cooler：
Primary cooler epimere condensed fluid, cleaning ammonia and the sprinkling of top ammonia that outlet valve will be had been switched off is stopped, and observes epimere
Come stream size, if epimere water sealed tank 3 does not carry out flow specification, primary cooler epimere does not leak primary cooler epimere water sealed tank 3；If come
Stream, primary cooler recirculated water section is vented, then epimere water sealed tank 3 is observed come the situation of flowing, if epimere water sealed tank 3 is no longer flowing,
Primary cooler remaining hot water section is not leaked；If epimere water sealed tank 3 is still flowing, judge that remaining hot water section is leaked：Recirculated water is come in and gone out
Mouthful valve is opened and send water, observation epimere water sealed tank 3, if not flowing, recirculated water section is not leaked, such as epimere water sealed tank 3
Stream then recirculated water section leakage；Leakage situation can also be judged with the presence or absence of negative pressure by circulating water outlet blow-down pipe, if negative
Pressure then further determines that primary cooler recirculated water section or the leakage of remaining hot water section.
3) leak source is searched in primary cooler tube bank：
Blind plate, the closing of bottom manhole, top exhaust stack closing, in primary cooler bottom manhole are blocked up in primary cooler gas piping gateway
The U envelopes of one 20kPa are installed, and fill liquid in U envelopes (summer is water, and winter is anti-icing fluid)；In primary cooler shell
Nitrogen is passed through in journey, nitrogen pressure is less than 20kPa in primary cooler；Nitrogen pressure in primary cooler is by connecing a U-shaped survey
Press meter to observe, nitrogen pressure inside primary cooler is adjusted by switching nitrogen tube shutter size.
Five senses judgement is crossed to each tube bank Gutron in each bobbin carriage, i.e., by observation, hears that taste, handss are touched, the mode such as listening is sentenced
Break which root pipe leaks, and most handy stethoscope comes that auxiliary judgment which root pipe leaks, nail at tube bank two ends after finding leakage it is stifled, it is real
Leak source is blocked now.
Claims (5)
1. a kind of transverse pipe initial cooler leakage inspection method, it is characterised in that comprise the following steps：
1) segment search leak source under primary cooler：
Primary cooler hypomere condensate pump is stopped, the hypomere condensed fluid of every primary cooler is closed and is cleaned ammonia, at the beginning of observation hypomere
Flowing size, the primary cooler for flowing maximum is the primary cooler of leakage to cooler hypomere water sealed tank；Turn off the primary cooler coal gas to go out
Mouth valve, while being vented primary cooler hypomere water at low temperature, then observes hypomere water sealed tank come the situation of flowing, if hypomere water sealed tank is not
Again flowing, it is determined that primary cooler hypomere is leaked；
2) segment search leak source on primary cooler：
Primary cooler epimere condensed fluid, cleaning ammonia and the sprinkling of top ammonia that outlet valve will be had been switched off is stopped, and observes epimere
Flowing size, if epimere water sealed tank does not carry out flow specification, primary cooler epimere does not leak primary cooler epimere water sealed tank；If to flow, will
Primary cooler recirculated water section is vented, then observes epimere water sealed tank come the situation of flowing, if epimere water sealed tank is no longer flowing, more than primary cooler
Hot water section does not leak；If epimere water sealed tank is still flowing, judge that remaining hot water section is leaked：Recirculated water gateway valve is opened
Send water, observe epimere water sealed tank, if not flowing, recirculated water section is not leaked, and is flowed such as epimere water sealed tank, and recirculated water section is let out
Leakage；
3) leak source is searched in primary cooler tube bank：
Blind plate, the closing of bottom manhole, top exhaust stack closing, in primary cooler bottom manhole are blocked up in primary cooler gas piping gateway
The U that one height liquid seal is 20kPa is installed to seal, and liquid is filled in U envelopes；Nitrogen is passed through in primary cooler shell side, just
In cooler, nitrogen pressure is less than 20kPa；Five senses judgement is crossed to each tube bank Gutron in each bobbin carriage, and uses stethoscope
To judge which root pipe leaks.
2. a kind of transverse pipe initial cooler leakage inspection method according to claim 1, it is characterised in that by low temperature water out
Blow-down pipe judges leakage situation with the presence or absence of negative pressure, if negative pressure then further confirms that primary cooler hypomere is leaked.
3. a kind of transverse pipe initial cooler leakage inspection method according to claim 1, it is characterised in that by circulating water outlet
Blow-down pipe judges leakage situation with the presence or absence of negative pressure, if negative pressure then further determines that primary cooler recirculated water section or remaining hot water section
Leakage.
4. a kind of transverse pipe initial cooler leakage inspection method according to claim 1, it is characterised in that step 3) in U
The liquid summer filled in envelope is water, and winter is anti-icing fluid.
5. a kind of transverse pipe initial cooler leakage inspection method according to claim 1, it is characterised in that the nitrogen in primary cooler
Pressure is observed by connecing a U-shaped manometer, adjusts nitrogen pressure inside primary cooler by switching nitrogen tube shutter size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591011.6A CN106546384B (en) | 2015-09-17 | 2015-09-17 | A kind of transverse pipe initial cooler leakage inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591011.6A CN106546384B (en) | 2015-09-17 | 2015-09-17 | A kind of transverse pipe initial cooler leakage inspection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106546384A true CN106546384A (en) | 2017-03-29 |
| CN106546384B CN106546384B (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510591011.6A Active CN106546384B (en) | 2015-09-17 | 2015-09-17 | A kind of transverse pipe initial cooler leakage inspection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561661A (en) * | 2020-04-29 | 2020-08-21 | 鞍钢股份有限公司 | Method for quickly replacing residual hot water return valve of gas primary cooler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232334A (en) * | 1985-08-05 | 1987-02-12 | Nippon Kokan Kk <Nkk> | Detection of leakage from tube of gas cooler |
| CN103307925A (en) * | 2013-05-22 | 2013-09-18 | 济钢集团有限公司 | Transverse tube-type cooling tower with leakage testing and overhauling function and overhauling and leakage testing method |
| CN104006938A (en) * | 2014-06-06 | 2014-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Detection method for leakage points of horizontal tube cooler |
| CN104006937A (en) * | 2014-06-06 | 2014-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | One-off detection method for multiple leakage points of horizontal tube cooler |
-
2015
- 2015-09-17 CN CN201510591011.6A patent/CN106546384B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232334A (en) * | 1985-08-05 | 1987-02-12 | Nippon Kokan Kk <Nkk> | Detection of leakage from tube of gas cooler |
| CN103307925A (en) * | 2013-05-22 | 2013-09-18 | 济钢集团有限公司 | Transverse tube-type cooling tower with leakage testing and overhauling function and overhauling and leakage testing method |
| CN104006938A (en) * | 2014-06-06 | 2014-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Detection method for leakage points of horizontal tube cooler |
| CN104006937A (en) * | 2014-06-06 | 2014-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | One-off detection method for multiple leakage points of horizontal tube cooler |
Non-Patent Citations (2)
| Title |
|---|
| 佟明锋: "横管式煤气初冷器查漏", 《设备管理与维修》 * |
| 王景荣等: "横管式间接初冷器查漏、堵漏操纵实践", 《河北冶金学会2008冶铁技术暨学术年会论文集》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561661A (en) * | 2020-04-29 | 2020-08-21 | 鞍钢股份有限公司 | Method for quickly replacing residual hot water return valve of gas primary cooler |
| CN111561661B (en) * | 2020-04-29 | 2021-12-24 | 鞍钢股份有限公司 | Method for quickly replacing residual hot water return valve of gas primary cooler |
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| Publication number | Publication date |
|---|---|
| CN106546384B (en) | 2019-01-08 |
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Effective date of registration: 20210825 Address after: 114000 Angang Xiaodongmen, Lishan District, Anshan City, Liaoning Province Patentee after: Anshan Chemical Technology Co.,Ltd. Address before: 114000 No. 1 ring steel road, Tiexi District, Liaoning, Anshan Patentee before: ANGANG STEEL COMPANY LIMITED |