CN111606482A - Chilling water cyclone liquid separation pumping device for coal gasification device - Google Patents
Chilling water cyclone liquid separation pumping device for coal gasification device Download PDFInfo
- Publication number
- CN111606482A CN111606482A CN201910142013.5A CN201910142013A CN111606482A CN 111606482 A CN111606482 A CN 111606482A CN 201910142013 A CN201910142013 A CN 201910142013A CN 111606482 A CN111606482 A CN 111606482A
- Authority
- CN
- China
- Prior art keywords
- pressure
- chilling
- hydrocyclone
- water
- stop valve
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
Abstract
The invention belongs to the technical field of coal gasification, and particularly relates to a chilling water rotary liquid separation pumping device for a coal gasification device. The device comprises a synthesis gas washing tower, a first stop valve, a high-pressure hydrocyclone separator, a second stop valve, a high-pressure flash system, a third stop valve, a one-way valve, a slag discharge filter, a high-pressure chilling water pump and a gasification furnace chilling chamber; the method can prevent the grey water with high temperature, high pressure and high solid content from the synthesis gas washing tower from directly entering the chilling water conveying system, and avoid serious scouring, abrasion and blockage of valves, filters, chilling water pumps, subsequent gasifiers and other devices on the grey water conveying pipeline.
Description
Technical Field
The invention belongs to the technical field of coal gasification, and particularly relates to a chilling water rotary liquid separation pumping device for a coal gasification device.
Background
The efficient clean utilization of coal is a key link for the continuous and healthy development of the current coal industry and is also a research hotspot in the field of fossil energy. The coal gasification technology is a core technology of the novel coal chemical industry, and has important significance for clean and efficient utilization of coal. No matter coal water slurry gasification or pulverized coal gasification, the process link of purification and dust removal is required, wherein wet dust removal is the most widely applied dust removal method in the coal gasification process. The black water treatment system is a core component of coal gasification, medium flow is high-temperature, high-pressure and gas/liquid/solid-containing three-phase black water, and due to poor working conditions, the system problems of scaling blockage, erosion wear, process corrosion and the like generally exist, mainly including pipeline valve blockage corrosion, quench ring failure, frequent quench water pump failure and the like, and the shutdown treatment is required in severe cases, so that the bottleneck of long-period stable operation of a coal gasification device is realized.
In the traditional coal gasification device process, grey water from a synthesis gas washing tower is directly pressurized by a chilling water pump and then injected into the lower part of a gasification furnace to carry out chilling on coal gas and slag. However, in many black water treatment systems of coal gasification device processes, the difference between the actual operation condition and the initial design condition is large after the operation, or the unstable fluctuation of the process at the initial stage of the operation of the whole gasification system and the subsequent coal quality and other process indexes cannot completely meet the initial design requirements, and finally, the solid content of the grey water passing through a synthesis gas washing tower is far higher than that of the original design, so that the grey water actually treated by each device in a grey water circulating system represented by a laser water pump not only has high temperature and high pressure, but also has a working condition which is much worse than that of the original design scheme.
Excessive solids content causes severe erosion and increased wear of flow passing components in the quench pump, such as impellers, vanes, and the like. Meanwhile, a filter at the inlet of the pump is easy to block, after the filter at the inlet is blocked or is not circulated smoothly, the cavitation allowance of a device in front of the pump is greatly reduced, so that the cavitation evacuation of the chilling water pump is caused, the vibration of a pump unit exceeds the standard, if the pump unit cannot be found and stopped for treatment in time, the filter is damaged and failed, a mechanical seal of the chilling water pump is damaged and leaked, the stress balance damage of a rotor, a bearing and the like in the pump is caused seriously, a large additional load is generated, even serious equipment faults such as shaft breakage and the like occur, the chilling water pump is used as a core device of a grey water circulating system of a coal gasification device, and once a large fault occurs, the safe operation of.
Disclosure of Invention
The invention aims to solve the technical problem of providing a chilling water rotary liquid separation pumping device for a coal gasification device, which improves the grey water circulating process that grey water is pressurized and conveyed to a chilling chamber of a gasification furnace from a synthesis gas washing tower in the traditional process of the coal gasification device, reduces the ash water slag content of equipment in a grey water circulating system such as a chilling water pump and the like as much as possible, prolongs the service life of the chilling water pump and main grey water system equipment such as subsequent pipelines, valves and the like, offsets the influence of process fluctuation on the whole black water treatment system as much as possible, and improves the reliability and stability of the coal gasification device.
In order to realize the purpose, the invention adopts the technical scheme that:
a chilling water hydrocyclone separation pumping device for a coal gasification device comprises a synthesis gas washing tower, a first stop valve, a high-pressure hydrocyclone, a second stop valve, a high-pressure flash system, a third stop valve, a one-way valve, a slag discharge filter, a high-pressure chilling water pump and a chilling chamber of a gasification furnace;
the synthesis gas washing tower is used for washing and dedusting the crude gas from the gasification furnace, and high-temperature and high-pressure solid-containing grey water is formed after washing and dedusting;
the lower part of the synthesis gas washing tower is provided with a first stop valve, the outlet of the first stop valve is connected with the inlet of the high-pressure hydrocyclone through a pipeline, and the grey water is discharged through the stop valve and then enters the high-pressure hydrocyclone;
under the action of centrifugal force, solid particles in the grey water entering the high-pressure hydrocyclone are thrown to the wall surface through the action of external cyclone, and black water taking solids as main components is formed by collecting the lower conical section of the high-pressure hydrocyclone and is discharged from a second stop valve below the high-pressure hydrocyclone;
the lower part of the high-pressure hydrocyclone separator is provided with a second stop valve, and the outlet of the second stop valve is connected with a high-pressure flash system through a pipeline;
the black water enters a high-pressure flash evaporation tank of a high-pressure flash evaporation system, the heat energy of the black water is recovered through flash evaporation and gasification of the high-pressure flash evaporation tank to concentrate the black water, and fine slag is separated out and discharged through a settling tank of the high-pressure flash evaporation system;
the residual grey water taking liquid as a main component after the external rotational flow action in the high-pressure hydrocyclone rotates from the lower part through the internal rotational flow action and is finally discharged from the outlet at the top of the high-pressure hydrocyclone, and the outlet at the top of the high-pressure hydrocyclone is sequentially connected with a stop valve III, a one-way valve and a slag discharge filter on a grey water circulating pipeline;
the grey water with further reduced solid content from the slag discharging filter enters a high-pressure chilling water pump, the outlet of the high-pressure chilling water pump is connected with the chilling chamber of the gasification furnace through a pipeline, and the high-pressure grey water pressurized by the chilling water pump enters the chilling chamber of the gasification furnace again to participate in the water circulation chilling application of the whole gasification device.
The invention has the beneficial effects that: by adopting the system process flow, the grey water with high temperature, high pressure and high solid content from the synthesis gas washing tower can be prevented from directly entering the chilling water conveying system, serious scouring, abrasion and blockage of a valve, a filter, a chilling water pump, a subsequent gasification furnace and other devices on a grey water conveying pipeline can be avoided, and the following effects are realized:
the solid content of high-temperature and high-pressure grey water from a synthesis gas washing tower is greatly reduced, the scouring and abrasion of the whole subsequent pipeline are effectively reduced, the working condition of subsequent equipment is improved, and the load of the equipment is reduced;
the ash water solid content at the inlet of the quench water pump of the key coal gasification device is obviously reduced, cavitation evacuation of a pump unit caused by blockage of the inlet can be effectively avoided, scouring and corrosion to an overflowing part in the pump are reduced, the service life of the quench water pump is effectively prolonged, the sealed working environment of the device is improved, the capability of the whole device for resisting process fluctuation is improved, and the stability of the system is improved.
Thirdly, after the high-temperature high-pressure high-solid content grey water from the synthesis gas washing tower passes through the hydrocyclone, a part of the grey water enters a high-pressure flash evaporation system, and the heat energy is recovered by flash evaporation vaporization, so that the energy recovery level of the whole device is improved, and the energy consumption of the device is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a chilling water hydrocyclone separation device for a coal gasification device.
In the figure, a synthesis gas washing tower (1), a stop valve I (2), a high-pressure hydrocyclone (3), a stop valve II (4), a high-pressure flash system (5), a stop valve III (6), a one-way valve (7), a slag discharge filter (8), a high-pressure chilling water pump (9) and a gasification furnace chilling chamber (10).
Detailed Description
The technical scheme of the invention is explained in detail in the following by combining the drawings and the specific embodiment.
As shown in figure 1, the chilling water hydrocyclone separation pumping device for the coal gasification device comprises a synthesis gas washing tower, a first stop valve, a high-pressure hydrocyclone, a second stop valve, a high-pressure flash evaporation system, a third stop valve, a one-way valve, a slag discharge filter, a high-pressure chilling water pump and a gasification furnace chilling chamber;
the synthesis gas washing tower is used for washing and dedusting the crude gas from the gasification furnace, and high-temperature and high-pressure solid-containing grey water is formed after washing and dedusting;
the lower part of the synthesis gas washing tower is provided with a first stop valve, the outlet of the first stop valve is connected with the inlet of the high-pressure hydrocyclone through a pipeline, and the grey water is discharged through the stop valve and then enters the high-pressure hydrocyclone;
under the action of centrifugal force, solid particles in the grey water entering the high-pressure hydrocyclone are thrown to the wall surface through the action of external cyclone, and black water taking solids as main components is formed by collecting the lower conical section of the high-pressure hydrocyclone and is discharged from a second stop valve below the high-pressure hydrocyclone;
the lower part of the high-pressure hydrocyclone separator is provided with a second stop valve, and the outlet of the second stop valve is connected with a high-pressure flash system through a pipeline; the second stop valve is not in a normally open state and is opened when needed.
The black water enters a high-pressure flash evaporation tank of a high-pressure flash evaporation system, the heat energy of the black water is recovered through flash evaporation and gasification of the high-pressure flash evaporation tank to concentrate the black water, and fine slag is separated out and discharged through a settling tank of the high-pressure flash evaporation system;
the residual grey water taking liquid as a main component after the external rotational flow action in the high-pressure hydrocyclone rotates from the lower part through the internal rotational flow action and is finally discharged from the outlet at the top of the high-pressure hydrocyclone, and the outlet at the top of the high-pressure hydrocyclone is sequentially connected with a stop valve III, a one-way valve and a slag discharge filter on a grey water circulating pipeline; the ash water reaching the slag discharging filter through the stop valve and the one-way valve greatly reduces the solid content, the particle diameter is also obviously reduced, the blockage of the slag discharging filter is obviously reduced, and the cleaning time of the filter can also be effectively prolonged.
The grey water with low solid content from the slag discharging filter enters the high-pressure chilling water pump, the solid content and the particle diameter in the grey water are small, the washing of a flow passage component is greatly reduced, meanwhile, the smooth slag discharging filter enables the suction performance of the inlet of the chilling water pump to be improved, the cavitation allowance of a device in front of the pump is improved, the probability of cavitation evacuation of the pump is reduced, the working condition of the chilling water pump of core equipment in a grey water circulating system is greatly improved, the service lives of a machine seal and a pump unit in the pump are effectively prolonged, the overhaul period is prolonged, and the reliability of the equipment is improved.
The grey water with further reduced solid content from the slag discharging filter enters a high-pressure chilling water pump, the outlet of the high-pressure chilling water pump is connected with the chilling chamber of the gasification furnace through a pipeline, and the high-pressure grey water pressurized by the chilling water pump enters the chilling chamber of the gasification furnace again to participate in the water circulation chilling application of the whole gasification device.
The grey water circulating system treated by the device has stable operation parameters, obviously improves the working condition of the equipment, can effectively improve the reliability of the coal gasification device, prolongs the maintenance period of the related equipment, reduces the daily operation cost, saves a large amount of labor cost, and has obvious economic benefit.
Claims (10)
1. The utility model provides a coal gasification is chilling hydrocyclone separation pumping installations for device which characterized in that:
the device comprises a synthesis gas washing tower (1), a first stop valve (2), a high-pressure hydrocyclone (3), a second stop valve (4), a high-pressure flash system (5), a third stop valve (6), a one-way valve (7), a slag discharge filter (8), a high-pressure chilling water pump (9) and a gasification furnace chilling chamber (10);
the lower part of the synthesis gas washing tower (1) is provided with a first stop valve (2), and the outlet of the first stop valve (2) is connected with the inlet of the high-pressure hydrocyclone (3) through a pipeline;
a second stop valve (4) is arranged at the lower part of the high-pressure hydrocyclone (3), and the outlet of the second stop valve (4) is connected with a high-pressure flash system (5) through a pipeline;
an outlet at the top of the high-pressure hydrocyclone (3) is sequentially connected with a stop valve III (6), a one-way valve (7) and a slag discharge filter (8) on the grey water circulating pipeline;
the slag discharging filter (8) is connected with a high-pressure chilling water pump (9), and the outlet of the high-pressure chilling water pump (9) is connected with a gasification furnace chilling chamber (10) through a pipeline.
2. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 1, wherein: the synthesis gas washing tower (1) is used for washing and dedusting the crude gas from the gasification furnace, and high-temperature and high-pressure solid-containing grey water is formed after washing and dedusting.
3. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 2, wherein: and the grey water is discharged through the first stop valve (2) and then enters the high-pressure hydrocyclone (3).
4. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 3, wherein: the solid particles in the grey water entering the high-pressure hydrocyclone (3) are thrown to the wall surface through the action of external rotational flow under the action of centrifugal force.
5. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 4, wherein: under the action of centrifugal force, solid particles in the grey water entering the high-pressure hydrocyclone (3) are thrown to the wall surface through the action of external rotational flow, and black water taking solids as main components is formed by collecting the lower conical section of the high-pressure hydrocyclone (3) and is discharged from a stop valve II (4) below the high-pressure hydrocyclone (3).
6. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 5, characterized in that: the black water enters a high-pressure flash evaporation tank of the high-pressure flash evaporation system (5), and the heat energy of the black water is recovered through flash evaporation and gasification of the high-pressure flash evaporation tank to concentrate the black water.
7. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 6, wherein: the black water enters a high-pressure flash tank of the high-pressure flash system (5), the heat energy of the black water is recovered through flash vaporization of the high-pressure flash tank to concentrate the black water, and fine slag is separated out and discharged through a settling tank of the high-pressure flash system (5).
8. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 7, wherein: the residual grey water which takes liquid as the main component and is left after the external rotational flow action in the high-pressure hydrocyclone (3) rotates from the lower part through the internal rotational flow action and is finally discharged from an outlet at the top of the high-pressure hydrocyclone (3).
9. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 1, wherein:
the grey water with further reduced solid content from the slag discharging filter (8) enters a high-pressure chilling water pump (9), and the outlet of the high-pressure chilling water pump (9) is connected with a gasification furnace chilling chamber (10) through a pipeline.
10. A chilling hydrocyclone separation pumping apparatus for a coal gasification unit according to claim 1, wherein: the high-pressure grey water pressurized by the high-pressure chilling water pump (9) enters the chilling chamber (10) of the gasification furnace again to participate in the water circulation chilling application of the whole gasification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910142013.5A CN111606482A (en) | 2019-02-26 | 2019-02-26 | Chilling water cyclone liquid separation pumping device for coal gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910142013.5A CN111606482A (en) | 2019-02-26 | 2019-02-26 | Chilling water cyclone liquid separation pumping device for coal gasification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111606482A true CN111606482A (en) | 2020-09-01 |
Family
ID=72193827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910142013.5A Pending CN111606482A (en) | 2019-02-26 | 2019-02-26 | Chilling water cyclone liquid separation pumping device for coal gasification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111606482A (en) |
-
2019
- 2019-02-26 CN CN201910142013.5A patent/CN111606482A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201321989Y (en) | High pressure resistant, wearable and corrosion resistant high temperature pump | |
| CN102562609B (en) | Nuclear three-stage waste heat discharge pump for AP1000 nuclear power station | |
| CN210103657U (en) | Chilling water cyclone liquid separation pumping device for coal gasification device | |
| CN113187574A (en) | Waste heat power generation system of ash water true-flashing negative-pressure wet steam turbine of coal gasification device | |
| CN111606482A (en) | Chilling water cyclone liquid separation pumping device for coal gasification device | |
| CN101947398B (en) | Precision filtering device and method for finely processing condensation water from nuclear power station | |
| CN103452734A (en) | Industrial fluid high-residual-pressure recovery hydraulic turbine power generation device | |
| CN209872881U (en) | Coke oven gas-liquid separation system | |
| CN108488073B (en) | Environment-friendly slurry circulating pump group | |
| CN208373197U (en) | A kind of low mine ring hammer type crushing plant of easy-maintaining power consumption | |
| CN216236889U (en) | Self-cleaning natural gas filter | |
| CN215596407U (en) | Water turbine main shaft seal water supply and drainage system | |
| CN109899326B (en) | Online runner descaling method of centrifugal compressor for oilfield associated gas | |
| CN206157107U (en) | Gasifier heisui river discharge system that goes into operation | |
| CN114046188B (en) | Closed natural gas pipeline power generation and filtering device | |
| CN219911238U (en) | Lubricating system of turbo booster pump and turbo booster pump | |
| CN216129547U (en) | Anti-blocking feeding device of high-pressure coal slurry pump | |
| CN213492161U (en) | Circulating water system of power plant | |
| CN113788983B (en) | VA refined tail gas recovery system and technology for high-pressure polymerization EVA resin production | |
| CN213331657U (en) | Sealed water washing system for high-speed pump | |
| CN219415662U (en) | Water circulation recycling device of chemical fiber calciner vacuum system | |
| CN218485464U (en) | Online automatically cleaning coke oven gas filter equipment | |
| CN219867359U (en) | Oil changing device for turntable bearing of peripheral transmission thickener | |
| CN220720363U (en) | Cooling device of tar squeeze pump | |
| CN215807913U (en) | Sealing water system suitable for gasification device pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |