CN107413778A - A kind of cleaning method for reducing coking end cooler resistance - Google Patents
A kind of cleaning method for reducing coking end cooler resistance Download PDFInfo
- Publication number
- CN107413778A CN107413778A CN201710287683.7A CN201710287683A CN107413778A CN 107413778 A CN107413778 A CN 107413778A CN 201710287683 A CN201710287683 A CN 201710287683A CN 107413778 A CN107413778 A CN 107413778A
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- CN
- China
- Prior art keywords
- cooler
- condensate
- whole
- resistance
- whole cooler
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A kind of cleaning method for reducing coking end cooler resistance, belongs to coking end cooler maintaining method technical field, for being cleaned to whole cooler tubulation.Its technical scheme is：Whole cooler level of condensate is reduced, benzene column rich oil pump discharge atmospheric valve is washed and is connected with condensate circulation pump inlet atmospheric valve, cold level of condensate, unlatching condensate circulation pump carry out washing 13 times to whole cooler eventually with circulating washing oil supplement, recover normal value to resistance.The present invention is using the circulating washing oil that temperature is 28 32 DEG C as washing medium, it is not required to stop work to whole cooler, crude benzol yield and circulating washing oil quality are unaffected, without the use of a large amount of steam, not only save the energy and also reduce environmental pollution, avoid the Poisoning Phenomenon to follow-up desulfurization workshop section desulfurizing agent, consumption circulating washing oil amount is less, and cleaning solution is delivered to and rouses cold and converted in the form of tar, economic loss is smaller.The present invention has the characteristics of simple to operate, not stop production, be economic, be environmentally friendly.
Description
Technical field
It is used to reduce the method for cleaning whole cooler of coking recovery zone end cooler resistance the present invention relates to a kind of,
Belong to coking end cooler maintaining method technical field.
Background technology
The coal gas that whole cooler in coking reclaimer is used to wash benzene column to entering cools down, the heat exchange of whole cooler
The quality of effect, which directly affects, washes benzene quality.During the use of whole cooler, because the impurity absorptions such as the naphthalene in coal gas are at end
On the tubulation of cooler, the resistance in whole cooler is gradually increasing, when resistance rises to 3000Pa, it is necessary to whole cooler is carried out
Cleaning, to reduce whole cooler resistance.Whole cooler cleaning is walked whole cooler from coal gas mostly and bypassed at present, closes whole cooler coal gas and enters
Outlet valve, opening are diffused, then using steam soaking.This cleaning method not only influences crude benzol yield, washing oil quality, also holds
Easily make the desulfurizing agent poisoning of follow-up desulfurization workshop section, and a large amount of uses are diffused in cleaning process, are not only wasted the energy, are also polluted environment.
So far, the method for cleaning whole cooler is never resolved, and turning into influences the problem that production is smoothed out.
Development with production and the strict law enforcement to environmental protection, existing whole cooler cleaning method can not be further continued for carrying out down
Go, it is necessary to improved as early as possible.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of cleaning method for reducing coking end cooler resistance, this clear
Washing method can significantly reduce whole cooler resistance, overcome existing technique to need to stop whole cooler, answered using a large amount of steam, operation
It is miscellaneous, cost is high, environmental pollution, and the problem of easily cause the poisoning of follow-up desulfurization workshop section desulfurizing agent.
Solve above-mentioned technical problem technical scheme be：
A kind of cleaning method for reducing coking end cooler resistance, it is carried out using following steps：
A. the level of condensate of whole cooler is reduced；
B. the condensate circulation pump inlet atmospheric valve of the rich oil pump discharge atmospheric valve for washing benzene column rich oil pump and whole cooler is passed through into company
Adapter is connected；
C. added to using washing benzene column rich oil pump supplement rich oil into whole cooler as circulating washing oil, circulating washing oil in condensate liquid；
D. open condensate circulation pump and washing 1-3 times is carried out to whole cooler；
E. cleaning solution is vented to underground emptying groove, then bulging cold machinery dreg scraping trough is delivered to underground emptying groove submerged pump.
The cleaning method of above-mentioned reduction coking end cooler resistance, in the step a, the level of condensate of whole cooler is reduced
100-1000mm。
The cleaning method of above-mentioned reduction coking end cooler resistance, in the step c, inject the circulating washing oil height of whole cooler
For 10-1000mm, the condensate liquid stoste position of whole cooler is supplemented to.
The cleaning method of above-mentioned reduction coking end cooler resistance, in the step d, when whole cooler resistance no longer decline and and
Day constant value compared to it is higher when, the level of condensate of whole cooler is reduced again, be supplemented condensate liquid has a height away from stoste position
Difference, then rich oil pump discharge atmospheric valve and condensate circulation pump inlet atmospheric valve are opened to whole cooler replenishment cycles washing oil to stoste position
Highly, open condensate circulation pump to wash whole cooler, circulated with this until resistance recovers normal.
The beneficial effects of the invention are as follows：
The circulating washing oil that the present invention is 28-32 DEG C using temperature is equipped with whole cooler condensate liquid as washing medium, cold eventually with not influenceing
The advantages of technological temperature, this method are not required to stop work to whole cooler, and crude benzol yield and circulating washing oil quality are unaffected, are not required to practicality
A large amount of steam, not only save the energy and also reduce environmental pollution, avoid the Poisoning Phenomenon to follow-up desulfurization workshop section desulfurizing agent, consume
Circulating washing oil amount is less, and cleaning solution is delivered to and rouses cold and converted in the form of tar, and economic loss is smaller.The present invention is that coking is cold eventually
Device cleaning method it is pioneering, solve the problem for the whole cooler of cleaning being never resolved, have it is simple to operate, do not stop
The characteristics of producing, be economic, environmentally friendly, has good economic benefit and social benefit, there is the value promoted the use of.
Brief description of the drawings
Fig. 1 is the equipment connection diagram of the present invention；
Fig. 2 is using whole cold resistance power schematic diagram after the present invention.
Marked in figure as follows：Benzene column 1 is washed, benzene column rich oil pump 2, rich oil pump discharge atmospheric valve 3, connecting tube 4, condensate liquid is washed and follows
Ring pump inlet atmospheric valve 5, condensate circulation pump 6, condensate liquid sprinkling 7, whole cooler 8, level of condensate 9, underground emptying groove 10,
Lower emptying groove submerged pump 11, drum cold machinery dreg scraping trough 12.
Embodiment
The present invention is carried out using following steps：
The first step, the level of condensate 9 of whole cooler 8 is reduced, level of condensate 9 reduces 100-1000mm.
Second step, rich oil pump discharge atmospheric valve 3 and the condensate circulation pump inlet of whole cooler 8 of benzene column rich oil pump 2 will be washed
Atmospheric valve 5 is connected by connecting tube 4, and connecting tube 4 is sebific duct.
3rd step, added to using washing the supplement rich oil of benzene column rich oil pump 2 into whole cooler 8 as circulating washing oil, circulating washing oil
In condensate liquid.
4th step, open condensate circulation pump 6 and washing 1-3 times is carried out to whole cooler 8.
5th step, cleaning solution is vented to underground emptying groove 10, then bulging cold machinery is delivered to underground emptying groove submerged pump 11
Dreg scraping trough 12.
In above-mentioned third step, the circulating washing oil for injecting whole cooler 8 is highly 10-1000mm, is supplemented to whole cooler 8
Condensate liquid original liquid level.
, again will eventually when the whole resistance of cooler 8 no longer declines and compares higher with day constant value in rapid on four above-mentioned, ground
The level of condensate 9 of cooler 8 reduces, and be supplemented condensate liquid has a difference in height away from stoste position, then opens the emptying of rich oil pump discharge
Valve 3 and condensate circulation pump inlet atmospheric valve 5 open condensate circulation to the whole replenishment cycles washing oil of cooler 8 to former liquid level
Pump 6 washs to whole cooler 8, is circulated with this until resistance recovers normal.
One embodiment of the present of invention is as follows：
The level of condensate 9 of whole cooler 8 is reduced into 300mm.
Open rich oil pump discharge atmospheric valve 3 and condensate circulation pump inlet atmospheric valve 5 and mend circulating washing oil to original to whole cooler 8
Liquid level, close rich oil pump discharge atmospheric valve 3 and condensate circulation pump inlet atmospheric valve 5.
Condensate circulation pump 6 is washed using circulating washing oil and condensate liquid as washing medium to the whole tubulation of cooler 8.
, will when if the whole drop in resistance trend resistance of cooler 8 is observed during washing no longer declining and compare higher with day constant value
Level of condensate 9 is reduced to 400m, then mends condensate liquid away from stoste position 300mm, then opens rich oil pump discharge atmospheric valve 3 and condensate liquid
Pump inlet atmospheric valve 5 is high to whole cooler 8 benefit circulating washing oil 300mm, opens condensate circulation pump 6 and whole cooler 8 is washed
Wash, circulated with this until resistance recovers normal.
Claims (4)
- A kind of 1. cleaning method for reducing coking end cooler resistance, it is characterised in that：It is carried out using following steps：By whole cooler（8）Level of condensate（9）Reduce；Benzene column rich oil pump will be washed（2）Rich oil pump discharge atmospheric valve（3）With whole cooler（8）Condensate circulation pump inlet atmospheric valve （5）Pass through connecting tube（4）It is connected；To wash benzene column rich oil pump（2）Rich oil is supplemented to whole cooler（8）Middle to be used as circulating washing oil, circulating washing oil adds to condensate liquid In；Open condensate circulation pump（6）To whole cooler（8）Carry out washing 1-3 times；Cleaning solution is vented to underground emptying groove（10）, then with underground emptying groove submerged pump（11）Deliver to bulging cold machinery dreg scraping trough （12）.
- 2. the cleaning method according to claim 1 for reducing coking end cooler resistance, it is characterised in that：In the step a, By whole cooler（8）Level of condensate（9）Reduce 100-1000mm.
- 3. the cleaning method according to claim 2 for reducing coking end cooler resistance, it is characterised in that：In the step c, Inject whole cooler（8）Circulating washing oil be highly 10-1000mm, be supplemented to whole cooler（8）Condensate liquid stoste position.
- 4. the cleaning method according to claim 3 for reducing coking end cooler resistance, it is characterised in that：In the step d, When whole cooler（8）When resistance no longer declines and compares higher with day constant value, again by whole cooler（8）Level of condensate（9）Drop Low, be supplemented condensate liquid has a difference in height away from stoste position, then opens rich oil pump discharge atmospheric valve（3）Enter with condensate circulation pump Mouth atmospheric valve（5）To whole cooler（8）Replenishment cycles washing oil opens condensate circulation pump to former liquid level（6）To whole cooler（8） Washed, circulated with this until resistance recovers normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287683.7A CN107413778A (en) | 2017-04-27 | 2017-04-27 | A kind of cleaning method for reducing coking end cooler resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287683.7A CN107413778A (en) | 2017-04-27 | 2017-04-27 | A kind of cleaning method for reducing coking end cooler resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107413778A true CN107413778A (en) | 2017-12-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710287683.7A Pending CN107413778A (en) | 2017-04-27 | 2017-04-27 | A kind of cleaning method for reducing coking end cooler resistance |
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| CN (1) | CN107413778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529522A (en) * | 2018-12-16 | 2019-03-29 | 唐钢美锦（唐山）煤化工有限公司 | A kind of ammonia still diffused gas purification process technique |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10219255A (en) * | 1997-02-03 | 1998-08-18 | Nkk Corp | Removal of coke adhered to gas cooler of coke dry quencher |
| DE10139172C1 (en) * | 2001-08-15 | 2003-02-06 | Montan Tech Gmbh | Rinsing pre-coolers of coking plant involves using liquid phase produced from collecting main which has not been impinged with pre-cooler condensate |
| CN1720315A (en) * | 2002-12-11 | 2006-01-11 | 犹德有限公司 | Cooling device for coke-oven gas |
| CN101157865A (en) * | 2007-09-28 | 2008-04-09 | 江苏沙钢集团有限公司 | Cleaning process for coking process tower and device |
| CN104302739A (en) * | 2012-04-18 | 2015-01-21 | 通用电气公司 | A method to treat flushing liquor systems in coke plants |
| CN204298351U (en) * | 2014-11-28 | 2015-04-29 | 中国平煤神马集团平顶山朝川焦化有限公司 | A kind of gas final cold tower with heating unit is except naphthalene system |
-
2017
- 2017-04-27 CN CN201710287683.7A patent/CN107413778A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10219255A (en) * | 1997-02-03 | 1998-08-18 | Nkk Corp | Removal of coke adhered to gas cooler of coke dry quencher |
| DE10139172C1 (en) * | 2001-08-15 | 2003-02-06 | Montan Tech Gmbh | Rinsing pre-coolers of coking plant involves using liquid phase produced from collecting main which has not been impinged with pre-cooler condensate |
| CN1720315A (en) * | 2002-12-11 | 2006-01-11 | 犹德有限公司 | Cooling device for coke-oven gas |
| CN101157865A (en) * | 2007-09-28 | 2008-04-09 | 江苏沙钢集团有限公司 | Cleaning process for coking process tower and device |
| CN104302739A (en) * | 2012-04-18 | 2015-01-21 | 通用电气公司 | A method to treat flushing liquor systems in coke plants |
| CN204298351U (en) * | 2014-11-28 | 2015-04-29 | 中国平煤神马集团平顶山朝川焦化有限公司 | A kind of gas final cold tower with heating unit is except naphthalene system |
Non-Patent Citations (2)
| Title |
|---|
| 张化强: "终冷器操作的改进", 《燃料与化工》 * |
| 张化强等: "降低洗油消耗的措施及效果", 《燃料与化工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529522A (en) * | 2018-12-16 | 2019-03-29 | 唐钢美锦（唐山）煤化工有限公司 | A kind of ammonia still diffused gas purification process technique |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |