CN206799540U - A kind of device for solving catalysis main air blower entrance blast cap frosting - Google Patents
A kind of device for solving catalysis main air blower entrance blast cap frosting Download PDFInfo
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- CN206799540U CN206799540U CN201720690685.6U CN201720690685U CN206799540U CN 206799540 U CN206799540 U CN 206799540U CN 201720690685 U CN201720690685 U CN 201720690685U CN 206799540 U CN206799540 U CN 206799540U
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- air blower
- main air
- blast cap
- outlet
- defrosting
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Abstract
The utility model discloses a kind of device for solving catalysis main air blower entrance blast cap frosting, including regenerator of catalytic unit, the air inlet of the regenerator of catalytic unit bottom is connected by the outlet of main air blower outlet line and main air blower, the porch of the main air blower is connected with main air blower inlet filter by pipeline, main air blower Inlet muffler is additionally provided with pipeline between main air blower and the main air blower inlet filter, main air blower outlet noise silencer is additionally provided with the main air blower outlet line；Exhanst gas outlet at the top of the regenerator of catalytic unit is connected through the power intake of flue gas turbine expander and main air blower, and the exhanst gas outlet of the flue gas turbine expander is connected by pipeline with waste heat boiler；Blast cap defrosting purging line is also associated with the main air blower outlet line, the outlet of blast cap defrosting purging line is corresponding with main air blower inlet filter.The utility model is rational in infrastructure, and easy to use, Maintenance free, cost are low, can thoroughly solve the problems, such as to be catalyzed fans entrance frosting, ensure normal work.
Description
Technical field
It the utility model is related to a kind of device for being catalyzed main air blower and safeguarding, and in particular to one kind solves catalysis main air blower entrance
The device of blast cap frosting.
Background technology
At present, the main air blower that catalytic cracking unit uses（Also known as axial fan）It is that the key of catalytic cracking unit is set
It is standby, there is very highly important effect in a device, power is provided for the regenerative system catalyst fluidization of reaction-regeneration system,
Ensure the pressure difference of two devices, promote catalyst to be flowed to settler, the catalyst in guarantee regenerator, burning tank is in fluidisation shape
State, and burnt for catalyst regeneration and sufficient oxygen is provided.
The medium that the entrance of main air blower entrance is required during work must be the clean air after filtering, typically by increasing in entrance
Add filter screen, but dust or other impurities be easily stained with during day-to-day operation, on filter screen, especially in the winter time with the runtime in spring
Between caused by the reasons such as low temperature frosty weather the frosting of fans entrance filter screen block, cause main air blower surge, the temperature of measurement point or
There is exception in the signals such as pressure, and the normal production to device is made troubles, influences to keep the safety in production.Entrance frosting will also result in once
Air quantity, air output deficiency, load increases but vapor (steam) temperature, pressure constantly decline, and ultimately results in unit forced outage.And it is catalyzed and splits
Disguising to put can not change in normally production, be individually for more carrying out dismantling blast cap defrosting, it is necessary to which maintenance shut-downs replacing can cause greatly
The shut-down of amount goes into operation cost allowance.In addition when other seasons, because of the negative pressure in main air blower suction line, then adhere on screen pack
Debris, inlet screen clogging also occurs, caused by result it is similar with " entrance frosting ".
The content of the invention
The defects of the purpose of this utility model exists aiming at prior art, there is provided it is a kind of rational in infrastructure, easy to use,
Maintenance free, cost are low, can thoroughly solve the problems, such as to be catalyzed fans entrance frosting, ensure the Revamping of Atmospheric Naphtha dehydration system of normal work
System.
The technical solution of the utility model is：A kind of device for solving catalysis main air blower entrance blast cap frosting, including catalysis
Device regenerator, the air inlet of the regenerator of catalytic unit bottom are connected by the outlet of main air blower outlet line and main air blower
Connect, the porch of the main air blower is connected with main air blower inlet filter by pipeline, and the main air blower enters to make a slip of the tongue with main air blower
Main air blower Inlet muffler is additionally provided with pipeline between filter, main air blower outlet is additionally provided with the main air blower outlet line and is disappeared
Sound device；
Exhanst gas outlet at the top of the regenerator of catalytic unit connects through the power intake of flue gas turbine expander and main air blower, institute
The exhanst gas outlet for stating flue gas turbine expander is connected by pipeline with waste heat boiler；
Be also associated with blast cap defrosting purging line on the main air blower outlet line, the outlet of blast cap defrosting purging line with
Main air blower inlet filter is corresponding.
The blast cap defrosting purging line is provided with the blast cap defrosting blowing valve for being used to adjust wind speed.
The main air blower inlet filter is provided with the main air blower entrance blast cap with netted blast cap screen pack.
The blast cap defrosting purging line surrounds one week around the netted blast cap screen pack of main air blower entrance blast cap, and the blast cap removes
Frost purging line is provided with the multiple and venthole of netted blast cap screen pack position correspondence.
The power intake of the main air blower also passes through gear-box and motor connection.
The utility model compared with prior art, has advantages below：It is rational in infrastructure, easy to use, Maintenance free, into
Sheet is low, can thoroughly solve to be catalyzed fans entrance frosting under normal production, securely and reliably.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of shower nozzle at blast cap screen pack；
In figure：1. regenerator of catalytic unit；2. flue gas turbine expander；3. main air blower；4. waste heat boiler；5. main air blower ingress filtering
Device；6. main air blower Inlet muffler；7. main air blower outlet line；8. main air blower outlet noise silencer；9. blast cap defrosting purging line；
10. main air blower entrance blast cap；11. netted blast cap screen pack；The blowing valve 12. blast cap defrosts；13. venthole；14. gear-box；15.
Motor.
Embodiment
Here is that the utility model is further illustrated in conjunction with the accompanying drawings and embodiments.
Reference picture 1, a kind of device for solving catalysis main air blower entrance blast cap frosting, including regenerator of catalytic unit 1, catalysis
The air inlet of the bottom of device regenerator 1 is connected by main air blower outlet line 7 with the outlet of main air blower 3, and main air blower 1 is to be again instead
System fluidisation and burn and power and oxygen, the gas of main air blower 3 are provided provided by main air blower outlet line 7.
Main air blower inlet filter 5, main air blower 3 and main air blower entrance are connected with by pipeline in the porch of main air blower 3
Main air blower Inlet muffler 6 is additionally provided with pipeline between filter 5, main air blower outlet is additionally provided with main air blower outlet line 7
Silencer 8；In use, air carries out noise reduction after the suction of main air blower inlet filter 5, by main air blower Inlet muffler 6
After be drawn onto in main air blower 3, rotated by the high speed of the impeller of main air blower 3, and 0.4MPa or so be pressurized to step by step, by what is compressed
Air delivers to the bottom of regenerator of catalytic unit 1 by main air blower outlet line 7, main air blower outlet noise silencer 8.
The exhanst gas outlet at the top of regenerator of catalytic unit 1 is connected through flue gas turbine expander 2 with the power intake of main air blower 3, cigarette
The exhanst gas outlet of gas-turbine 2 is connected by pipeline with waste heat boiler 4；The exhanst gas outlet at the top of regenerator of catalytic unit 1 is by high temperature
Flue gas is sent into flue gas turbine expander 2, the heat energy of high-temperature flue gas is converted into the mechanical energy of flue gas turbine expander 2 so that the rotor of flue gas turbine expander 2
Rotate, kinetic energy is passed into main air blower 3 by the rotor of flue gas turbine expander 2, finishes the flue gas after work(, although having temperature in cigarette machine
Drop, but also there is very high heat energy, then water is transferred thermal energy into waste heat boiler 4 by the exhanst gas outlet of flue gas turbine expander 2
Vapour, then by smoke stack emission to air.The most important effect of flue gas turbine expander 2 is that recovery reaction-regeneration system burns produced high temperature
The heat energy of flue gas, so as to reduce plant energy consumption, reach the purpose for saving the energy.
Be also associated with main air blower outlet line 7 blast cap defrosting purging line 9, blast cap defrosting purging line 9 export position with
The position of main air blower inlet filter 5 is corresponding.The gas part that main air blower 3 sucks is entered by main air blower outlet line 7
Regenerator of catalytic unit 1, another part can be entered by blast cap defrosting purging line 9 to the main air blower of main air blower inlet filter 5
One's intention as revealed in what one says cap 10 is defrosted, can effectively pre- wind-proof cap frosting.
Defrost the blast cap defrosting blowing valve 12 for purging and being provided with line 9 and being used to adjust wind speed in blast cap.Blown by blast cap defrosting
Valve 12 can adjust the aperture size of wind velocity, so as to effectively defrost.
Reference picture 2, is provided with netted blast cap screen pack 11 on main air blower entrance blast cap 10, and netted blast cap screen pack 11 can rise
Acted on to air filtration, multiple ventholes 13 are set on blast cap defrosting purging line 9, the position of venthole 13 is filtered with netted blast cap
The position correspondence of net 11, and blast cap defrosting purging line 9 moves towards to surround one around netted blast cap screen pack 11 according to filter shape
Week.The gas that blast cap defrosting purging line 9 can so come out carries out full side by venthole 13 to netted blast cap screen pack 11
The jet of position, so as to effective pre- wind-proof cap frosting.
The power intake of main air blower 3 is also connected by gear-box 14 with motor 15, the side of power intake one of main air blower 3
Face is provided by high-temperature flue gas by the rotor of flue gas turbine expander 2, energy of the cigarette machine general power as driving main air blower 3, and main wind
Machine 3 is provided in the energy deficiency that flue gas turbine expander 2 is provided by motor 15.
During work, air carries out noise reduction after the suction of main air blower inlet filter 5, by main air blower Inlet muffler 6
After be drawn onto in main air blower 3, rotated by the high speed of the impeller of main air blower 3, and 0.4MPa or so be pressurized to step by step, by what is compressed
Air passes through main air blower outlet line 7, and a part of gas delivers to the bottom of regenerator of catalytic unit 1 through main air blower outlet noise silencer 8
Portion uses into regenerator of catalytic unit 1；Another part gas delivers to main air blower inlet filter by blast cap defrosting purging line 9
Main air blower entrance blast cap 10 at 5 is defrosted, and by adjusting blast cap defrosting blowing valve 12, the aperture that can adjust wind velocity is big
Small, blast cap defrosting purging line 9 moves towards to surround one week around netted blast cap screen pack 11 according to filter shape, and is defrosted by blast cap
The venthole 13 set on purging line 9, is purged to the netted blast cap screen pack 11 at main air blower inlet filter 5, is prevented
Blast cap frosting.Can thoroughly solve to be catalyzed fans entrance frosting by the gas of flowing, ensure normal production, rational in infrastructure, safety
Reliably, and Maintenance free, cost are low.
The utility model is not limited to above-mentioned embodiment, in those skilled in the art's possessed knowledge,
It can also be made a variety of changes on the premise of the utility model aims are not departed from, the content after change still falls within the utility model
Protection domain.
Claims (5)
1. a kind of device for solving catalysis main air blower entrance blast cap frosting, including regenerator of catalytic unit, it is characterised in that：It is described
The air inlet of regenerator of catalytic unit bottom is connected by the outlet of main air blower outlet line and main air blower, and the main air blower enters
Mouthful place is connected with main air blower inlet filter by pipeline, on the pipeline between main air blower and the main air blower inlet filter and also
Provided with main air blower Inlet muffler, main air blower outlet noise silencer is additionally provided with the main air blower outlet line；
Exhanst gas outlet at the top of the regenerator of catalytic unit connects through the power intake of flue gas turbine expander and main air blower, the cigarette
The exhanst gas outlet of gas-turbine is connected by pipeline with waste heat boiler；
Blast cap defrosting purging line, the outlet of the blast cap defrosting purging line and main wind are also associated with the main air blower outlet line
Machine inlet filter is corresponding.
A kind of 2. device for solving catalysis main air blower entrance blast cap frosting according to claim 1, it is characterised in that：It is described
Blast cap defrosting purging line is provided with the blast cap defrosting blowing valve for being used to adjust wind speed.
A kind of 3. device for solving catalysis main air blower entrance blast cap frosting according to claim 2, it is characterised in that：It is described
Main air blower inlet filter is provided with the main air blower entrance blast cap with netted blast cap screen pack.
A kind of 4. device for solving catalysis main air blower entrance blast cap frosting according to claim 3, it is characterised in that：It is described
Blast cap defrosting purging line surrounds one week around the netted blast cap screen pack of main air blower entrance blast cap, is set on the blast cap defrosting purging line
There is multiple and netted blast cap screen pack position correspondence venthole.
A kind of 5. device for solving catalysis main air blower entrance blast cap frosting according to claim 1, it is characterised in that：It is described
The power intake of main air blower also passes through gear-box and motor connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690685.6U CN206799540U (en) | 2017-06-14 | 2017-06-14 | A kind of device for solving catalysis main air blower entrance blast cap frosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690685.6U CN206799540U (en) | 2017-06-14 | 2017-06-14 | A kind of device for solving catalysis main air blower entrance blast cap frosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206799540U true CN206799540U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720690685.6U Active CN206799540U (en) | 2017-06-14 | 2017-06-14 | A kind of device for solving catalysis main air blower entrance blast cap frosting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664321A (en) * | 2019-10-15 | 2021-04-16 | 中国石油化工股份有限公司 | Fan starting device |
-
2017
- 2017-06-14 CN CN201720690685.6U patent/CN206799540U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664321A (en) * | 2019-10-15 | 2021-04-16 | 中国石油化工股份有限公司 | Fan starting device |
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