CN106568091A - On-line slag removal method and device for torch cylinder - Google Patents
On-line slag removal method and device for torch cylinder Download PDFInfo
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- CN106568091A CN106568091A CN201510649172.6A CN201510649172A CN106568091A CN 106568091 A CN106568091 A CN 106568091A CN 201510649172 A CN201510649172 A CN 201510649172A CN 106568091 A CN106568091 A CN 106568091A
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Abstract
The invention discloses an on-line slag removal method and device for a torch cylinder. The method comprises following steps: fresh water flows into the bottom of the torch cylinder through a slag removing water inlet of the torch cylinder when condensate drain and slag removal are needed and downwardly and orderly flows through a slag removal port of the torch cylinder, a valve and a slag removal pipeline to enter a slag collection cylinder; the valve is closed after thorough cleaning; nitrogen gas is guided into the slag collection cylinder through a sweeping port of the slag collection cylinder while a sewage drainage valve is opened; condensate and sewage are filtered and discharged while dirt with larger inner diameters in the slag collection cylinder are kept in the slag collection cylinder; blind board covers at two ends of the slag collection cylinder are opened; nitrogen gas is utilized for replacement after cleaning; and the slag removal work ends when the oxygen content in a slag accumulation cylinder satisfies the safety production requirement. The on-line slag removal method and device for the torch cylinder have following beneficial effects: without affecting normal production and operation of technological devices and torch systems in petrochemical enterprises, on-line slag removal of the torch cylinder is achieved; the condensate and sundries are prevented from accumulating at the bottom of a torch cylinder body; and therefore safe production and operation of torch and discharge systems are ensured.
Description
Technical field
The present invention relates to a kind of online deslagging method of torch cylinder in petrochemical enterprise torch gas exhaust system and
Device.
Background technology
Flare discharge system is the critical facility for ensureing petrochemical enterprise safety in production operation.Petrochemical industry is looked forward to
Industry torch facility is divided into overhead torch, the class of ground flare two, because ground flare is by construction scale and comburant
The factor restriction such as discharge environmental protection, current most domestic petrochemical enterprise adopts overhead torch.
During normal production run, that what is carried secretly in the torch cylinder bottom of overhead torch can accumulate emptying gas is hydrocarbonaceous
Or the anvil cinder hung containing sour lime set or cylinder corrosion etc..Long-time accumulate in torch cylinder bottom, such as can not and
When remove, following harm can be caused：
1. torch cylinder bottom corrosion failure, potential safety hazard is big；
2. the lime set and sulfide anvil cinder of torch cylinder bottom is easily burnt and is exploded when being tempered.
The deslagging process and device of current torch cylinder, can only be during petrochemical enterprise process unit shut-down (breakdown) mainteance
Carry out.During normal production run, it is impossible to complete the slagging-off work of torch cylinder in time.
The content of the invention
It is an object of the invention to provide a kind of online deslagging method of torch cylinder and device, to overcome existing torch
The shortcoming that cylinder can only could remove the gred during shut-down (breakdown) mainteance.
The present invention provides a kind of torch cylinder online deslagging method, it is characterised in that：During normal production, torch cylinder
Body bottom can build up lime set and anvil cinder, and when needing condensate drain deslagging, fresh water is intake by torch cylinder deslagging
Mouth enters torch cylinder bottom, and the lime set and anvil cinder to gathering is cleaned, and torch is then passed sequentially through downwards
Cylinder slag-drip opening, valve and Residue extraction pipeline enter into collection slag cylinder, after torch cylinder bottom-purge is clean, by valve
Door is closed, and makes torch cylinder and collection slag cylinder completely isolated, now introduces nitrogen gas into collection by collecting slag cylinder blow valve port
Slag cylinder is purged, while the blowoff valve at collection slag cylinder sewage draining exit is opened, lime set and sewage are through collection slag cylinder
Strainer filtering heel row discharge device, what wherein particle diameter was big is partially left in collection slag cylinder, opens collection slag cylinder two ends
Blind plate lid is cleared up, and collection slag cylinder blind plate lid is closed after cleaning out, and is drawn nitrogen by collecting slag cylinder blow valve port
Enter to collect slag cylinder and line replacement is entered to accumulated slag cylinder, when the oxygen that the accumulated slag cylinder that accumulated slag cylinder exhaust outlet is collected discharges gas contains
When amount concentration meets safety in production and requires, will collection slag cylinder exhaust close, remove the gred end-of-job, finally will row
Valve on slag pipeline is opened, and is completed torch cylinder and is removed the gred online work.
The present invention also provides a kind of torch cylinder online deslagging device, including vertical torch cylinder, torch cylinder
Bottom sets gradually from top to bottom emptying gas entrance and manhole, and torch cylinder top arranges emptying gas outlet,
Torch cylinder bottom arranges torch cylinder slag-drip opening, it is characterised in that：Torch cylinder bottom is additionally provided with torch cylinder
Deslagging water inlet, torch cylinder lower section arranges collection slag cylinder, integrates cylinder of the slag cylinder as horizontal positioned, collects slag cylinder cylinder
Body two ends are collection slag cylinder blind plate lid, and collection slag cylinder top arranges Residue extraction pipeline, and Residue extraction pipeline is by valve and torch
Cylinder slag-drip opening is connected, and collection slag cylinder top is additionally provided with collection slag cylinder blow valve port and collection slag cylinder exhaust outlet, collects slag cylinder
Bottom is provided with collection slag cylinder sewage draining exit, and collection slag cylinder filter screen is arranged in collection slag cylinder sewage draining exit.
A kind of online deslagging device of torch cylinder of the present invention is further technically characterized in that：The torch cylinder row
The bore of cinder notch, valve and Residue extraction pipeline determines according to the diameter of torch cylinder, typically in DN150～DN300
Between.
A kind of online deslagging device of torch cylinder of the present invention is further technically characterized in that：The valve is general
From full-bore valve, (in the case of same size, the internal diameter of full-bore valve is identical with internal diameter of the pipeline, and common
The internal diameter of valve is less than internal diameter of the pipeline), sealing effectiveness is good, corrosion-resistant.
A kind of online deslagging device of torch cylinder of the present invention is further technically characterized in that：The collection slag cylinder
Bore and length should determine according to the diameter of torch cylinder and height, bore typically between DN250～DN500,
Length is typically between 1.5 meters～3.0 meters.
A kind of online deslagging device of torch cylinder of the present invention is further technically characterized in that：The Residue extraction pipeline
Vertically downward or obliquely 45～90 degree are arranged at collection slag cylinder top, and its length should be as far as possible short.
A kind of online deslagging device of torch cylinder of the present invention is further technically characterized in that：The collection slag cylinder blows
The blind plate lid of mouth and collection slag cylinder exhaust outlet respectively close to collection slag cylinder two ends is swept, and collects slag cylinder from the purging of collection slag cylinder
To the exhaust port side of collection slag cylinder, the gradient is 5%～20% to mouth hipped end.
A kind of online deslagging method of torch cylinder of the present invention and device are mainly used in the discharge of petrochemical enterprise torch gas
System, cannot be only used for the online deslagging of newly-built overhead torch facility torch cylinder, and go for existing
Online deslagging after overhead torch facility torch cylinder upgrading.
Compared with prior art, a kind of online deslagging method of torch cylinder of the invention and device have advantages below：
1st, the present invention can meet is not affecting petrochemical enterprise process unit and flare system normally to produce fortune
Exercise in the case of using, realize that torch cylinder removes the gred online, it is to avoid torch cylinder bottom lime set and debris are accumulated for a long time
It is poly-, it is ensured that torch and exhaust system safety in production operation.
2nd, present configuration pattern is succinct, and feasibility is good, invests little.
3rd, the present invention is applicable not only to the online slagging-off of newly-built overhead torch facility torch cylinder, and can be suitable for
Online slagging-off after existing overhead torch facility torch cylinder upgrading, can reach does not affect normal production
In the case of realize the purpose of the online slagging-off of torch cylinder.
Below the present invention is described in further detail with the drawings and specific embodiments, but is not intended to limit this
Bright scope：
Description of the drawings
Fig. 1 is a kind of online deslagging method of torch cylinder of the invention and schematic device.
Reference is shown in it：
1. torch cylinder, 2. emptying gas entrance, 3. emptying gas outlet, 4. manhole, 5. torch cylinder deslagging
Water inlet, 6. torch cylinder slag-drip opening, 7. valve, 8. Residue extraction pipeline, 9. collection slag cylinder, 10. collection slag cylinder blow valve port,
11. collection slag cylinder exhaust outlets, 12. collection slag cylinder filter screens, 13. collection slag cylinder sewage draining exits, 14. collection slag cylinder blind plate lids, 15.
Blowoff valve, 16. blow down valves, 17. air bleeding valves.
Specific embodiment
Fig. 1 is a kind of online deslagging device schematic diagram of torch cylinder, including vertical torch cylinder 1, torch cylinder
1 bottom sets gradually from top to bottom emptying gas entrance 2 and manhole 4, torch cylinder top arranges emptying gas
Outlet 3, the bottom of torch cylinder 1 arranges torch cylinder slag-drip opening 6, and the bottom of torch cylinder 1 is additionally provided with torch cylinder
Deslagging water inlet 5, the lower section of torch cylinder 1 arranges collection slag cylinder 9, integrates cylinder of the slag cylinder 9 as horizontal positioned, collects
The two ends of slag cylinder 9 or so are collection slag cylinder blind plate lid 14,9, collection slag cylinder top setting Residue extraction pipeline 8, Residue extraction pipeline 8
It is connected with torch cylinder slag-drip opening 6 by valve 7, the top of collection slag cylinder 9 is additionally provided with collection slag cylinder blow valve port 10
With collection slag cylinder exhaust outlet 11, the bottom of collection slag cylinder 9 is provided with collection slag cylinder sewage draining exit 13, collection slag cylinder sewage draining exit 13
Inside it is provided with collection slag cylinder filter screen 12.
Blow down valve 16 is provided with the collection slag cylinder blow valve port 10, at collection slag cylinder sewage draining exit 13 blowdown is provided with
Valve 15, at collection slag cylinder exhaust outlet 11 air bleeding valve 17 is provided with.
The bore of torch cylinder slag-drip opening 6, valve 7 of the present invention and Residue extraction pipeline 8 is according to torch cylinder 1
Diameter determines, typically between DN150～DN300.
The valve 7 typically selects full-bore valve, and sealing effectiveness is good, corrosion-resistant.
The collection slag cylinder 9 may be located in the skirt of the bottom of torch cylinder 1, should be near the bottom of torch cylinder 1
At the gateway of skirt, easy access but can not affect skirt gateway pass through；Also Residue extraction pipeline 8 can be passed through
Mitered draws the skirt of the bottom of torch cylinder 1, is placed in outside the axis of torch cylinder 1.
The bore and length of described collection slag cylinder 9 should be according to the diameter of torch cylinder 1 and height determination, bore
Typically between DN250～DN500, length is typically between 1.5 meters～3.0 meters.
Described Residue extraction pipeline 8 is arranged at the top of collection slag cylinder 9, its length for 45～90 degree vertically downward or obliquely
Degree should be as far as possible short.Residue extraction pipeline 8 shown in Fig. 1 is to be arranged at the top of collection slag cylinder 9 vertically downward.
The collection slag cylinder blow valve port 10 and collection slag cylinder exhaust outlet 11 should try one's best respectively close to the blind of collection slag cylinder two ends
Plate lid, collect slag cylinder 9 should from the end of the end slope aspect collection slag cylinder exhaust outlet 11 of the blow valve port 10 of collection slag cylinder,
The gradient is not less than 5%～20%.
Described torch cylinder deslagging water inlet 5 should typically access 0.3 conventional～0.45MPa of petrochemical enterprise
Production water.
Described Residue extraction pipeline 8 and described collection slag cylinder 9 can install visor, be easy to observe slagging-off situation.
Described collection slag cylinder blow valve port 10 should access inert gas, such as access petrochemical enterprise it is conventional 0.6～
The low-pressure nitrogen of 0.8MPa.
In actual production operation, judged whether by the visor on Residue extraction pipeline 8 and collection slag cylinder 9
Need the operation that removes the gred.During normal production, valve 7 is in full open position, and the bottom of torch cylinder 1 is gradually
The lime set and anvil cinder of accumulation enters into collection slag cylinder 9 by torch cylinder slag-drip opening 6, valve 7 and Residue extraction pipeline 8.
The bottom of torch cylinder 1 can access fresh water and be cleaned by torch cylinder deslagging water inlet 5, then deslagging.
After the bottom-purge of torch cylinder 1 is clean, valve 7 is closed, realize torch cylinder 1 and collect slag cylinder 9
It is completely isolated, nitrogen purging is accessed by collecting slag cylinder blow valve port 10, while by collection slag cylinder sewage draining exit 13
Valve is opened, by lime set and sewage Closed Drain to petrochemical enterprise sewage disposal system.Lime set and anvil cinder
The big part of middle particle diameter is filtered by collection slag cylinder filter screen 12, is stayed in collection slag cylinder 9, opens collection slag cylinder blind plate lid
14 realize cleaning.It is then shut off collecting slag cylinder blind plate lid 14, it is right to introduce nitrogen gas into by collection slag cylinder blow valve port 10
Accumulated slag cylinder 9 enters line replacement, when the oxygen content concentration of accumulated slag cylinder exhaust outlet 11 meets safety in production to be required, will collect
Air bleeding valve 17 on slag cylinder exhaust outlet 11 is closed, and remove the gred end-of-job, finally opens on valve 7, completes
The work that torch cylinder removes the gred online.
Claims (7)
1. the online deslagging method of a kind of torch cylinder, it is characterised in that：During normal production, the meeting of torch cylinder bottom
Lime set and anvil cinder are built up, when needing condensate drain deslagging, fresh water enters fire by torch cylinder deslagging water inlet
Torch cylinder body bottom, to gather lime set and anvil cinder clean, then pass sequentially through downwards torch cylinder slag-drip opening,
Valve and Residue extraction pipeline enter into collection slag cylinder, after torch cylinder bottom-purge is clean, valve closing make
Torch cylinder and collection slag cylinder are completely isolated, now introduce nitrogen gas into collection slag cylinder by collection slag cylinder blow valve port and are blown
Sweep, while the blowoff valve at collection slag cylinder sewage draining exit is opened, lime set and sewage are after collection slag cylinder strainer filtering
Device is given off, what wherein particle diameter was big is partially left in collection slag cylinder, opening the blind plate lid at collection slag cylinder two ends is carried out
Cleaning, closes collection slag cylinder blind plate lid after cleaning out, introduce nitrogen gas into collection slag cylinder by collection slag cylinder blow valve port right
Accumulated slag cylinder enters line replacement, when the oxygen content concentration that the accumulated slag cylinder collected in collection slag cylinder exhaust outlet discharges gas expires
When foot safety in production is required, by collection slag cylinder exhaust close, remove the gred end-of-job, finally by Residue extraction pipeline
Valve open, complete torch cylinder and remove the gred online work.
2. the online deslagging device of torch cylinder used by a kind of online deslagging method of torch cylinder described in claim 1,
Emptying gas entrance and manhole are set gradually from top to bottom including vertical torch cylinder, torch cylinder bottom,
Torch cylinder top arranges emptying gas outlet, and torch cylinder bottom arranges torch cylinder slag-drip opening, and its feature exists
In：Torch cylinder bottom is additionally provided with torch cylinder deslagging water inlet, and torch cylinder lower section arranges collection slag cylinder, collection
Slag cylinder is the cylinder of horizontal positioned, collects slag cylinder cylinder two ends for collection slag cylinder blind plate lid, collection slag cylinder top setting row
Slag pipeline, Residue extraction pipeline is connected by valve with torch cylinder slag-drip opening, and collection slag cylinder top is additionally provided with collection slag
Cylinder blow valve port and collection slag cylinder exhaust outlet, collection slag cylinder bottom is provided with collection slag cylinder sewage draining exit, in collection slag cylinder sewage draining exit
Collection slag cylinder filter screen is set.
3. the online deslagging device of torch cylinder according to claim 2, it is characterised in that：The torch cylinder
The bore of slag-drip opening, valve and Residue extraction pipeline is between DN150～DN300.
4. the online deslagging device of torch cylinder according to claim 2, it is characterised in that：The valve is
Full-bore valve.
5. the online deslagging device of torch cylinder according to claim 2, it is characterised in that：The collection slag cylinder
Bore between DN250～DN500, length is between 1.5 meters～3.0 meters.
6. the online deslagging device of torch cylinder according to claim 2, it is characterised in that：The scum pipe
Road is arranged at collection slag cylinder top for 45～90 degree vertically downward or obliquely.
7. the online deslagging device of torch cylinder according to claim 2, it is characterised in that：The collection slag cylinder
Blow valve port and collection slag cylinder exhaust outlet collect slag cylinder blowing from collection slag cylinder respectively close to the blind plate lid for collecting slag cylinder two ends
Mouthful hipped end is swept to the exhaust port side of collection slag cylinder, the gradient is 5%～20%.
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|---|---|---|---|
| CN201510649172.6A CN106568091B (en) | 2015-10-08 | 2015-10-08 | A kind of online deslagging method of torch cylinder and device |
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|---|---|---|---|
| CN201510649172.6A CN106568091B (en) | 2015-10-08 | 2015-10-08 | A kind of online deslagging method of torch cylinder and device |
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| CN106568091A true CN106568091A (en) | 2017-04-19 |
| CN106568091B CN106568091B (en) | 2018-07-27 |
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| DE19853717C2 (en) * | 1998-11-20 | 2000-12-21 | Krc Umwelttechnik Gmbh | Methods and devices for the gasification of compact organic materials |
| CN2741644Y (en) * | 2004-11-04 | 2005-11-23 | 中国石化仪征化纤股份有限公司 | Slag discharging mechanism of liquid seal device of vacuum system |
| CN101251265A (en) * | 2008-02-27 | 2008-08-27 | 广州市宇联机电有限公司 | Biomass gasification stoves with multiple feed inlet |
| CN101275743A (en) * | 2008-04-30 | 2008-10-01 | 浙江大学 | Danger waste material rotary type fluidization cold slag three-segment incinerator |
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