CN212119537U - Circulating pump shell flushing and reforming system of catalytic cracking flue gas desulfurization device - Google Patents
Circulating pump shell flushing and reforming system of catalytic cracking flue gas desulfurization device Download PDFInfo
- Publication number
- CN212119537U CN212119537U CN201921136236.2U CN201921136236U CN212119537U CN 212119537 U CN212119537 U CN 212119537U CN 201921136236 U CN201921136236 U CN 201921136236U CN 212119537 U CN212119537 U CN 212119537U
- Authority
- CN
- China
- Prior art keywords
- pump
- circulating pump
- flue gas
- washing water
- gas desulfurization
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a catalytic cracking flue gas desulfurization device circulating pump casing washes transformation system. The problem of desulfurization bottom of the tower circulating pump thick liquid suspended solid present natural deposition after, lead to reserve circulating pump inlet valve department catalyst density on the high side, can take place for a long time that the valve blocks up and close not tight and the barring is difficult is mainly solved. The method is characterized in that: the original emergency waterline (1) is connected with a pump washing water bus (2), a pump washing water bus gate valve (3) is connected to the pump washing water bus (2), and the pump washing water bus (2) is respectively connected to body gate valves (7) of pumps of 3 circulating pumps (6) through 3 branch lines; each branch line is respectively connected with a pump flushing water gate valve (4). This catalytic cracking flue gas desulfurization device circulating pump casing washes transformation system utilizes the accident waterline to come fresh water to wash reserve circulating pump, has avoided because the catalyst deposit leads to the phenomenon emergence of the unable barring of pump.
Description
Technical Field
The utility model relates to a petrochemical production technical field, in particular to catalytic cracking flue gas desulfurization device circulating pump casing washes transformation system.
Background
The catalytic cracking flue gas desulfurization tower bottom circulating pump is used for achieving the effects of removing sulfur from flue gas, primarily dedusting and quenching flue gas by utilizing the reverse contact of caustic solution at the tower bottom and the flue gas in a flue gas desulfurization washing section. The flue gas desulfurization tower has accident water sent to the flue gas inlet of the flue gas desulfurization tower, and the flue gas is quenched in an accident state.
Because the circulating pump at the bottom of the desulfurization tower is usually two-opening one-standby, slurry suspended matters at the bottom of the desulfurization tower are naturally deposited, the density of a catalyst at an inlet valve of the standby circulating pump is higher, the situation that a valve is blocked and cannot be closed tightly can be caused for a long time, and slurry enters a pump body to cause the sealing ring of a pump impeller to be blocked, so that the turning is very difficult.
Disclosure of Invention
The utility model aims to solve the technical problem that the thick liquid suspended solid at the bottom of the present desulfurization tower bottom circulating pump that exists is overcome and natural deposition leads to reserve circulating pump inlet valve department catalyst density to lead to the problem that the valve blocks up and close not tight for a long time, and a catalytic cracking flue gas desulfurization device circulating pump casing washes transformation system is provided, this catalytic cracking flue gas desulfurization device circulating pump casing washes transformation system, fresh water washes reserve circulating pump in the utilization accident waterline, avoided because the catalyst deposition leads to the phenomenon emergence of the unable barring of machine pump.
The utility model provides a its problem accessible reach as follows technical scheme: the circulating pump shell flushing and reforming system of the catalytic cracking flue gas desulfurization device comprises an original accident waterline and 3 circulating pumps, wherein each circulating pump is connected with a circulating pump outlet valve and a circulating pump inlet valve respectively, the original accident waterline is connected with a machine pump flushing water bus, a machine pump flushing water bus gate valve is connected to the machine pump flushing water bus, and the machine pump flushing water bus is connected to body gate valves of the 3 circulating pump machines through 3 branch lines respectively; each branch line is respectively connected with a pump flushing water gate valve.
Utility model and above-mentioned background art compare can have following beneficial effect: the circulating pump shell flushing and reforming system of the catalytic cracking flue gas desulfurization device is applied, and the problem that a pump cannot be turned is solved. And fresh water enters the desulfurizing tower to replace process water supplement for utilization, so that loss is not caused. And reduces a large amount of maintenance costs. And the maintenance is carried out in 2018, the cost for replacing the material of the inlet valve of the pump reaches 12.7 ten thousand yuan, and the construction cost is not calculated (the roof of a house needs to be removed, the coordination of a crane, the transportation cost and the like).
Drawings
Fig. 1 is a system flow diagram of the present invention.
In the figure: 1. an original accident waterline; 2. a machine pump flush water bus; 3. A machine pump flushing water bus gate valve; 4. A branch gate valve of pump flushing water; 5. emptying the gate valve of the machine pump flushing waterline; 6. a circulation pump; 7. a gate valve at the root of the circulating pump body; 8. a recirculating pump outlet valve; 9. a circulating pump inlet valve.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings:
as shown in the attached figure 1, the circulating pump shell flushing and reforming system of the catalytic cracking flue gas desulfurization device comprises an original accident waterline 1 and 3 circulating pumps 6, wherein each circulating pump 6 is respectively connected with a circulating pump outlet valve 8 and a circulating pump inlet valve 9; the original emergency waterline 1 is connected with a machine pump flushing water bus 2, the machine pump flushing water bus 2 is connected with a machine pump flushing water bus gate valve 3, and the machine pump flushing water bus 2 is respectively connected to body root gate valves 7 of 6 machines of 3 circulating pumps through 3 branch lines; each branch line is respectively connected with a pump flushing water gate valve 4; and each distribution line is also respectively connected with a pump flushing waterline emptying gate valve 5.
The flue gas desulfurization tower has accident water sent to the flue gas inlet of the flue gas desulfurization tower, the flue gas is quenched in an accident state, a pipeline is connected to an original accident water line and serves as a machine pump flushing water bus in a circulating pump room, a gate valve is arranged on the machine pump flushing water bus for control, three branch pipelines are connected to the flushing water bus and are used for flushing the gate valve at the root of a circulating pump body, each of the three pipelines is provided with a valve, and each pipeline is provided with an emptying valve.
The working process of the circulating pump shell flushing and reforming system of the catalytic cracking flue gas desulfurization device is as follows: a branch (used as a flushing water bus) is led to an accident waterline, the flushing water bus is matched above circulating pumps (used by all pumps) in a circulating pump room at the bottom of a desulfurization tower, the flushing water bus is respectively distributed to gate valves of a circulating pump body, the circulating pump body is connected by flanges, and an emptying valve is respectively matched on the line. When the standby pump is protected, a branch gate valve 4 of washing water of the pump and a gate valve 5 of the root part of a circulating pump body are opened, the catalyst is deposited in the pump by using fresh water, the condition that the pump cannot be turned is prevented, the catalyst in a valve passage of an inlet valve and an outlet valve can be washed, the inlet valve and the outlet valve are closed tightly, if the fresh water which is not closed tightly enters a desulfurizing tower along with an inlet pipeline, partial process supplementing water is replaced, and waste does not exist.
The Daqing Zhongyangshi chemical company Limited applies the flushing technique of the invention to the circulating pump of the DCC device. The application effect is very good up to now, and the device normally operates to achieve the invention effect. After the system is applied, the manpower is saved, the maintenance cost is reduced, the standby circulating pump is processed 20 days before the system is put into use, the cost is 150 yuan, and 365 days/20 days/150 yuan =2737.5 yuan per year; after the invention is put into use, the circulating pump is not processed, and the cost is not generated.
Claims (2)
1. The utility model provides a catalytic cracking flue gas desulfurization device circulating pump casing washes transformation system, includes former accident waterline (1), 3 circulating pump (6), and every circulating pump (6) are connected with circulating pump outlet valve (8), circulating pump inlet valve (9) respectively, its characterized in that: the original emergency waterline (1) is connected with a pump washing water bus (2), a pump washing water bus gate valve (3) is connected to the pump washing water bus (2), and the pump washing water bus (2) is respectively connected to body gate valves (7) of pumps of 3 circulating pumps (6) through 3 branch lines; each branch line is respectively connected with a pump flushing water gate valve (4).
2. The system of claim 1 for reforming a circulating pump shell of a catalytic cracking flue gas desulfurization device, wherein: each branch line is also respectively connected with a blow-down gate valve (5) of the pump flushing waterline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136236.2U CN212119537U (en) | 2019-07-18 | 2019-07-18 | Circulating pump shell flushing and reforming system of catalytic cracking flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136236.2U CN212119537U (en) | 2019-07-18 | 2019-07-18 | Circulating pump shell flushing and reforming system of catalytic cracking flue gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212119537U true CN212119537U (en) | 2020-12-11 |
Family
ID=73667294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921136236.2U Expired - Fee Related CN212119537U (en) | 2019-07-18 | 2019-07-18 | Circulating pump shell flushing and reforming system of catalytic cracking flue gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212119537U (en) |
-
2019
- 2019-07-18 CN CN201921136236.2U patent/CN212119537U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201912887U (en) | Horizontal type desulfurization tower | |
| CN105174373B (en) | A method of it reducing condensate polishing treatment regenerative system and mixes fat | |
| CN212119537U (en) | Circulating pump shell flushing and reforming system of catalytic cracking flue gas desulfurization device | |
| CN102864765A (en) | Double-turbine dispersed delivery system with power generation function | |
| CN202962189U (en) | Defroster flushing water system of wet-method smoke desulfuration system | |
| CN204384927U (en) | A kind ofly just wash draining recovery system for heat power plant boiler supplementary feed ion-exchange salt removing system | |
| CN204643958U (en) | Modernization pig house wastewater reuse approach anaerobic reaction system | |
| WO2022095420A1 (en) | Flue gas treatment system and flue gas treatment method | |
| CN202715350U (en) | Wet desulfurization adsorption tower with multi-effect turbulence system | |
| CN213835199U (en) | Final cooling tower wash oil sprays except that naphthalene device | |
| CN201871257U (en) | Stirring type filter | |
| CN208009591U (en) | A kind of pipe-line system | |
| CN111678288A (en) | Recirculated cooling water drainage system of recycling | |
| CN104478062B (en) | A kind of spent acid treatment system and cleaning system thereof | |
| CN218810629U (en) | Waste water classification disposal system of condensate polishing regeneration system | |
| CN208824228U (en) | High-efficiency desulfurization defroster cleaning apparatus | |
| CN213995461U (en) | Seawater reverse osmosis cleaning valve replacing device | |
| CN114182698B (en) | Continuous sand flushing type sand sedimentation tank structure and overhauling operation method thereof | |
| CN203329617U (en) | Desulfurization slurry feed system | |
| CN215462251U (en) | Horizontal flow sedimentation tank pressure sludge discharge structure for steel rolling system | |
| CN207203845U (en) | A kind of serum recycle pipeline structure | |
| CN204474437U (en) | A kind of containing thallium industrial waste water disposal device | |
| CN204873944U (en) | Co current regeneration anion exchange ware | |
| CN211411614U (en) | Flue gas desulfurization device | |
| CN217868405U (en) | Mine explosion-proof water treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201211 |