CN208032218U - A kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage - Google Patents
A kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage Download PDFInfo
- Publication number
- CN208032218U CN208032218U CN201820360575.8U CN201820360575U CN208032218U CN 208032218 U CN208032218 U CN 208032218U CN 201820360575 U CN201820360575 U CN 201820360575U CN 208032218 U CN208032218 U CN 208032218U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- catalytic cracking
- pass
- cracking unit
- circulation duct
- 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.)
- Active
Links
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a kind of devices avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage, including desulfurization by-pass pipeline, smoke inlet pipelines and composite water sealed cans；The composite water sealed cans are placed in inside chimney, tank body is opening cylindrical shape, tank bottom center is equipped with vertical circulation duct, coniform water seal cap is installed on the top of circulation duct, and there are the gaps that can make water, flow of air between the inner face and circulation duct of water seal cap and between the outside and inner tank wall of water seal cap；The smoke inlet pipelines are that the horizontal pipe of section is bored equipped with transition；The discharge of flue gas is controlled by adjusting the liquid level of composite water sealed cans.The utility model is using the scientific design of the built-in composite water sealed cans of chimney as core, it is simple in structure, easy to operate, rationally distributed, thoroughly solve the problems, such as that butterfly valve is unable to control smoke spillage, it ensure that safety in production and environmental requirement, and have the advantages that easy for installation, operation is simple, at low cost, reusable.
Description
Technical field
The utility model is related to catalytic cracking unit flue gas desulfurization facilities flue gas emission fields in petrochemical industry Refining Chemical Industry, specifically
It is related to a kind of device avoiding desulfurization by-pass smoke spillage.
Background technology
Catalytic cracking unit flue gas desulfurization facilities by-pass is each provided with a set of flue butterfly valve, CO incinerator smoke desulfurizers
Cutting off flue by-pass pipeline when normal work, flue gas is allowed to fully enter waste heat boiler and desulfurizer, prevent flue gas without
Heat exchange and desulfurization process and directly empty, cause thermal energy waste and environmental pollution.But because flue butterfly valve for a long time in high temperature and
In the corrosive fume environment of the particle containing catalyst dust, it extremely be easy to cause valve plate temperature distortion and sealing position abrasion and corruption
Erosion；Since flue butterfly valve feature is limited, it can not accomplish zero leakage, if continuing to replace butterfly valve or repair it is not possible that reach completely close
The effect of envelope.In order to terminate the smoke spillage without desulfurization as early as possible to the chronic pollution of environment, there is an urgent need for sealed to leakage line
Stifled transformation.
Utility model content
In view of the defects existing in the prior art, the utility model provides a kind of simple in structure, easy to operate, rationally distributed
Avoid the device of catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage.
Its technical solution is：Including desulfurization by-pass pipeline, smoke inlet pipelines and composite water sealed cans；It is described compound
Water sealed tank is of moderate size, and can be placed in inside chimney；The composite water sealed cans include tank body, and tank body is opening cylindrical shape, tank bottom
Equipped with supporting rack, tank bottom center is equipped with vertical circulation duct, and the upper end of circulation duct is stretched into the middle part of chamber, tank bottom is stretched out in lower end
Coniform water seal cap is installed on the top of outside, circulation duct, and water seal cap is fixed by the outer wall of supporting rib and circulation duct to be connected
It connects, there are can make water, flow of air between the inner face and circulation duct of water seal cap and between the outside and inner tank wall of water seal cap
Gap, the lower part of tank wall is equipped with the discharge tube of the first valve of installation, middle part be equipped with the second valve of installation water inlet pipe, on
Portion is equipped with overflow pipe；The smoke inlet pipelines are that the horizontal pipe of section is bored equipped with transition, and small end connects under circulation duct
End, big end connect desulfurization by-pass pipeline；The discharge of flue gas is controlled by adjusting the liquid level of composite water sealed cans.
Above-mentioned technical proposal can advanced optimize for：
The transition cone intersegmental part is equipped with lateral interlayer.
The quantity of the transverse direction interlayer is 2.
The material of the water seal cap is stainless steel.
The catalytic cracking unit refer to wax oil or atmospheric residue or wax oil mix refining atmospheric residue and decompression residuum be
Raw material, carry out under the action of catalyst reaction generate gasoline, diesel oil and liquefied gas device, including wax catalysis cracking unit,
DCC devices, MIP devices and Double-lifted pipe catalytic cracking device.
For the utility model using the scientific design of the built-in composite water sealed cans of chimney as core, composite water sealed cans have inversion
Flue gas discharge construction, by toward compound water sealed tank in plus water formed fluid-tight, obstruct smoke spillage, by discharge water make exhaust lead to
Freely, it thoroughly solves the problems, such as that butterfly valve is unable to control smoke spillage, ensure that safety in production and environmental requirement, and there is installation side
Just simple, at low cost, reusable advantage, is operated.
Description of the drawings
Fig. 1 is the utility model topology layout section and flue gas flow direction schematic diagram；
Fig. 2 is the stereochemical structure enlarged diagram of water seal cap and circulation duct in Fig. 1；
In figure：1- chimneys, 2- composite water sealed cans, 3- supporting racks, 4- water seal caps, 5- circulation ducts, 6- overflow pipes, 7- into
Water pipe, the second valves of 8-, 9- discharge tubes, the first valves of 10-, 11- desulfurization by-pass pipelines, 12- smoke inlet pipelines, 12.1- mistakes
Cross cone section, 12.1.1- transverse direction interlayers, 13- supporting ribs.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
Referring to Fig. 1, Fig. 2.A kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage, including it is de-
Sulphur by-pass pipeline 11, smoke inlet pipelines 12 and composite water sealed cans 2.Composite water sealed cans 2 are of moderate size, and can be placed in chimney 1
It is internal.Composite water sealed cans 2 include tank body, and tank body is opening cylindrical shape；Tank bottom is equipped with supporting rack 3；Tank bottom center is equipped with vertical
Circulation duct 5, the upper end of circulation duct 5 is stretched into the middle part of chamber, lower end is stretched out outside tank bottom, and the top of circulation duct 5 is installed
Coniform water seal cap 4, water seal cap 4 are fixedly connected by supporting rib 13 with the outer wall of circulation duct 5；The inner face of water seal cap 4 with
There are the gaps that can make water, flow of air between circulation duct 5 and between the outside and inner tank wall of water seal cap 4.It is good to ensure
The material of good performance, water seal cap 4 uses stainless steel.The lower part of tank wall is equipped with the discharge tube of the first valve 10 of installation
9, middle part is equipped with the water inlet pipe 7 of the second valve 8 of installation, top is equipped with overflow pipe 6.Smoke inlet pipelines 12 are to bore section equipped with transition
12.1 horizontal pipe, small end connect the lower end of circulation duct 5, and big end connects desulfurization by-pass pipeline 11.To give full play to
The cushioning effect of section 12.1 is bored in transition, is internally provided with 2 lateral interlayer 12.1.1.By the liquid for adjusting composite water sealed cans 2
Face height controls the discharge of flue gas.Catalytic cracking unit refer to wax oil or atmospheric residue or wax oil mix refining atmospheric residue and
Decompression residuum is raw material, carries out the device that reaction generates gasoline, diesel oil and liquefied gas, including wax catalysis under the action of catalyst
Cracking unit, DCC devices, MIP devices and Double-lifted pipe catalytic cracking device.
The Basic Design thinking and operation principle of the utility model are as follows：
Desulfurization by-pass pipeline 11 is led to the later pipeline removing of the butterfly valve and butterfly valve in 1 direction of chimney, by desulfurization by-pass pipe
Road 11 is directly accessed smoke inlet pipelines 12, and composite water sealed cans 2 are built in chimney 1, do not influence original piping arrangement after transformation
And stress present situation, do not change primary tube system main-body structure, is not take up existing space and plan-position.Flue gas passes through smoke inlet pipe
After road 12 is directly entered chimney 1, turns upwards towards 90 ° of pipelines 5 that circulate and reach 2 inner cavity of composite water sealed cans, then flue gas is logical
The annular space outflow between circulation duct 5 and water seal cap 4 is crossed, then is flowed out by the annular space between water seal cap 4 and tank body, is finally led to
The chimney 1 on top exports.Accomplish to control flue gas with water, the inside liquid level of control composite water sealed cans 2 is reduced by addition
It discharges and does not discharge, thoroughly solve the problems, such as that butterfly valve is unable to control smoke spillage.The device has water seal steadily reliable, is suitable for de-
Sulphur by-pass space is difficult to meet the project reconstruction under conditions of the conventional water sealed tank of arrangement；By using above-mentioned modification scheme, can have
Effect blocks the smoke spillage caused by leakage in remaining pot by-pass and desulfurization by-pass flue butterfly valve, keeps the flue gas of catalytic cracking unit whole
It is discharged after desulphurization system is handled, to environmentally friendly hidden danger existing for cancellation element long-term operation.
Claims (5)
1. a kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage, it is characterised in that：Including desulfurization
By-pass pipeline, smoke inlet pipelines and composite water sealed cans；The composite water sealed cans are of moderate size, and can be placed in inside chimney；
The composite water sealed cans include tank body, and tank body is opening cylindrical shape, and tank bottom is equipped with supporting rack, and tank bottom center is equipped with vertical stream
It threads a pipe, the upper end of circulation duct is stretched into the middle part of chamber, lower end is stretched out outside tank bottom, and the top of circulation duct is installed coniform
Water seal cap, water seal cap are fixedly connected by supporting rib with the outer wall of circulation duct, between the inner face and circulation duct of water seal cap and
There are the gap that can make water, flow of air between the outside and inner tank wall of water seal cap, the lower part of tank wall is equipped with installation the
The discharge tube of one valve, middle part are equipped with the water inlet pipe of the second valve of installation, top is equipped with overflow pipe；The smoke inlet pipelines are
The horizontal pipe of section is bored equipped with transition, small end connects the lower end of circulation duct, and big end connects desulfurization by-pass pipeline；Pass through tune
The liquid level of composite water sealed cans is saved to control the discharge of flue gas.
2. a kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage according to claim 1,
It is characterized in that：The transition cone intersegmental part is equipped with lateral interlayer.
3. a kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage according to claim 2,
It is characterized in that：The quantity of the transverse direction interlayer is 2.
4. a kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage according to claim 1,
It is characterized in that：The material of the water seal cap is stainless steel.
5. according to a kind of any described catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillages that avoid of claim 1-4
Device, it is characterised in that：The catalytic cracking unit refers to mixing refining atmospheric residue with wax oil or atmospheric residue or wax oil and subtracting
Pressure residual oil is raw material, carries out the device that reaction generates gasoline, diesel oil and liquefied gas under the action of catalyst, including wax catalysis is split
Makeup sets, DCC devices, MIP devices and Double-lifted pipe catalytic cracking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820360575.8U CN208032218U (en) | 2018-03-16 | 2018-03-16 | A kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820360575.8U CN208032218U (en) | 2018-03-16 | 2018-03-16 | A kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208032218U true CN208032218U (en) | 2018-11-02 |
Family
ID=63948362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820360575.8U Active CN208032218U (en) | 2018-03-16 | 2018-03-16 | A kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208032218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482079A (en) * | 2019-01-28 | 2020-08-04 | 中国石油化工股份有限公司 | Catalytic regeneration flue gas denitration, dedusting and desulfurization system and depressurization method |
-
2018
- 2018-03-16 CN CN201820360575.8U patent/CN208032218U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482079A (en) * | 2019-01-28 | 2020-08-04 | 中国石油化工股份有限公司 | Catalytic regeneration flue gas denitration, dedusting and desulfurization system and depressurization method |
| CN111482079B (en) * | 2019-01-28 | 2021-12-03 | 中国石油化工股份有限公司 | Catalytic regeneration flue gas denitration, dedusting and desulfurization system and depressurization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208032218U (en) | A kind of device avoiding catalytic cracking unit flue gas desulfurization facilities by-pass smoke spillage | |
| CN206597446U (en) | A kind of wet type desulfurizing reaction unit | |
| CN209872881U (en) | Coke oven gas-liquid separation system | |
| CN107100767B (en) | Cleaning automobile | |
| CN102746904B (en) | Treating device and treating process for waste gas produced in pyrolysis of waste rubber and plastics | |
| CN202246604U (en) | Biogas gas-water separator | |
| CN202638199U (en) | Biomass fuel gas purification multi-stage sprayer | |
| CN101545541B (en) | Low pressure drop floating type gas phase media water-sealed valve | |
| CN210392227U (en) | Anti-leakage floating roof tank | |
| CN209612574U (en) | A kind of processing unit for sour gas in synthesis gas | |
| CN208049713U (en) | A kind of Γ type inlet ducts for ship tail gas scrubbing tower | |
| CN203307305U (en) | Novel methane treatment system for kitchen waste treatment | |
| CN105907435A (en) | Efficient and energy-saving purification device for liquefied petroleum gas | |
| CN111500323A (en) | Gas-liquid separation spiral filter | |
| CN204619771U (en) | A kind of automobile-used oven gas and natural gas mixing arrangement | |
| CN201065415Y (en) | Double-layer overflow water sealing trough | |
| CN213833014U (en) | Storage tank system suitable for sulphuric acid is stored | |
| CN220622849U (en) | External water seal device of pipeline | |
| CN214241171U (en) | Large-scale container ship hybrid exhaust gas cleaning device | |
| CN203131121U (en) | Lifting-type low-pressure-drop water sealing tank | |
| CN211040472U (en) | Trachea net seals liquid device | |
| CN117323784A (en) | Pitch storage fume purification device | |
| CN204629076U (en) | A kind of LNG immersed pump pump sump | |
| CN215663959U (en) | High-low-sulfur fuel oil and water treatment system suitable for marine diesel engine | |
| CN212504752U (en) | Combined gas purification system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |