CN213885006U - Gasification high-flash evaporation gas recycling and vacuum negative pumping system - Google Patents
Gasification high-flash evaporation gas recycling and vacuum negative pumping system Download PDFInfo
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- CN213885006U CN213885006U CN202022371278.3U CN202022371278U CN213885006U CN 213885006 U CN213885006 U CN 213885006U CN 202022371278 U CN202022371278 U CN 202022371278U CN 213885006 U CN213885006 U CN 213885006U
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Abstract
The utility model relates to a gasification high flash distillation gas recycle and vacuum take-off system. At present, in a vacuum flash evaporation pump body of a real flash system in a grey water treatment process, because carbonate is formed by extracted flash evaporation steam and production water, a large amount of scaling phenomenon is generated. A gasified high-flash evaporation gas recycling and vacuum negative pumping system comprises: high flash tank (1) and true flash tank (2), high flash tank one end is passed through oxygen-eliminating device pipeline (3), hot fire cabinet pipeline (4) and high pressure flash steam pipe (5) respectively with the oxygen-eliminating device, hot fire cabinet and drawer (6) are connected, the exhaust end of drawer is connected with catch water tank (7), catch water tank one end is passed through filtrate pipe (8) and is connected with the filtrate groove, the other end and hot fire cabinet union coupling, the other end of high flash tank passes through grey water pipe (9) and is connected with true flash tank, true flash tank is connected with subsider and vacuum flash system (10) respectively, the vacuum flash system is connected with the suction end of drawer. The utility model discloses be applied to the thermoelectricity field.
Description
The technical field is as follows:
the utility model relates to a gasification high flash distillation gas recycle and vacuum take-off system.
Background art:
in the prior production operation, the shunxing coal is used for pulping, because the concentration of the coal slurry is stabilized between 46 percent and 47 percent (the original design is 53.4 percent), the water carrying amount of a gasification system is increased compared with the original design, the high flash steam amount in the grey water treatment process is increased, and the flash steam is used for heat exchange of a grey water heater and heating of a deaerator, and generates a large amount of redundant flash steam to prevent the overpressure of the high flash system from being discharged into a torch, thereby bringing greater pressure to environmental protection. Meanwhile, in the vacuum flash evaporation pump body of the true flash evaporation system in the grey water treatment process, because the extracted flash evaporation steam and production water form carbonate, a large amount of scaling phenomenon is generated, and further the true flash evaporation system cannot reach a specified negative pressure value, so that the water temperature of the settling tank is too high (higher than 85 ℃), on one hand, the influence on the grey water settling effect is large, the using amount of a flocculating agent is increased, and on the other hand, the grey water of the settling tank overflows to the grey water tank, so that the temperature of discharged water is too high.
The invention content is as follows:
the utility model aims at providing a gasification high flash distillation gas recycle and vacuum take-off system.
The above purpose is realized by the following technical scheme:
a gasified high-flash evaporation gas recycling and vacuum negative pumping system comprises: high flash tank and true flash tank, high flash tank one end pass through oxygen-eliminating device pipeline, hot fire cabinet pipeline and high pressure flash steam pipe and be connected with oxygen-eliminating device, hot fire cabinet and extractor respectively, the exhaust end and the catch water tank of extractor be connected, catch water tank one end pass through the filtrate pipe and be connected with the filtrate groove, the other end and hot fire cabinet union coupling, the other end of high flash tank pass through grey water pipe and really flash tank and connect, true flash tank respectively with subsider and vacuum flash system connection, vacuum flash system and the suction end of extractor be connected.
The utility model has the advantages that:
1. the utility model (1) is additionally provided with two drawing devices (ejectors) (one each A/B set high flash system).
(2) Two pipelines are additionally arranged and are connected to the suction end of the suction device from the gas phase outlet of the real flash tank top separator of the real flash system.
(3) Two pipelines (A/B sets of high flash systems) are additionally arranged and are connected to a power end of the extractor from a high flash steam outlet.
(4) Two steam-water separation tanks (one for each A/B high-flash system) are additionally arranged, liquid is separated and sent to a settling tank, and gas is discharged.
(5) A line is added to vent from a suitable location in the A, B set of high flash steam convergence header.
The utility model discloses the unnecessary high flash distillation vapour that the recycle system produced, with this partial gas as the power supply of drawing ware (sprayer), draw ware suction end and insert really sudden strain of a muscle system, utilize the sprayer principle, make really sudden strain of a muscle system form the negative pressure, reach qualified index.
The utility model discloses save the operation of vacuum flash distillation pump greatly, maintain the maintenance cost. After the pumping system is installed, the vacuum flash evaporation pump is used as a standby system for pumping negative pressure of the true flash evaporation system and is not used except special conditions (no high flash evaporation steam exists during maintenance or abnormal flash evaporation steam occurs in the system and cannot be used). Calculated according to the working time of 8000 hours a year, the electricity consumption of the pump is saved by more than 40 ten thousand yuan all year round, and meanwhile, the overhaul cost, the manual maintenance cost and the spare part cost of the pump are saved.
The utility model discloses produce a large amount of unnecessary flash distillation steam with the high-pressure flash tank and regard as the power supply of drawing ware (sprayer), draw ware (sprayer) suction end and insert vacuum flash system, utilize the sprayer to form the negative pressure principle, make vacuum flash system form the negative pressure, reach qualified index. Meanwhile, the operation of the vacuum flash pump can be saved, the maintenance cost is saved, and the purposes of cost reduction and efficiency improvement are achieved.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the system comprises a high-flash tank, a real-flash tank, a deaerator pipeline, a hot fire cabinet pipeline, a high-pressure flash steam pipe, a drawer, a steam-water separation tank, a filter liquor pipe, a dust water pipe, a vacuum flash system, and a hot flash steam pipe, wherein the high-flash tank is 2, the real-flash tank is 3, the deaerator pipeline is 4, the hot fire cabinet pipeline is 5, the high-pressure flash steam pipe is 6.
The specific implementation mode is as follows:
example 1:
a gasified high-flash evaporation gas recycling and vacuum negative pumping system comprises: high jar 1 and the real jar 2 that dodges, high jar one end of dodging through oxygen-eliminating device pipeline 3, hot fire cabinet pipeline 4 and high pressure flash steam pipe 5 and be connected with oxygen-eliminating device, hot fire cabinet and extractor 6 respectively, the exhaust end and the catch water tank 7 of extractor be connected, catch water tank one end pass through filtrate pipe 8 and be connected with the filtrate groove, the other end and hot fire cabinet union coupling, the other end of high jar of dodging pass through grey water pipe 9 and be connected with the real jar of dodging, the real jar of dodging be connected with subsider and vacuum flash system 10 respectively, vacuum flash system be connected with the suction end of extractor.
Example 2:
the construction steps are as follows:
(1) prefabricating pipelines, welding steel pipes and flanges and prefabricating foundations in advance.
(2) An extractor (ejector) is installed.
(3) Connecting the pipelines.
(4) Purging pipelines and testing pressure.
Claims (1)
1. A gasified high-flash evaporation gas recycling and vacuum negative pumping system comprises: high jar and true jar that dodges, characterized by: high flash tank one end pass through the oxygen-eliminating device pipeline, hot fire cabinet pipeline and high pressure flash distillation steam pipe and be connected with oxygen-eliminating device, hot fire cabinet and aspirator respectively, the exhaust end and the catch water jar of aspirator be connected, catch water jar one end pass through the filtrate pipe and be connected with the filtrate groove, the other end and hot fire cabinet union coupling, the other end of high flash tank pass through grey water pipe and really flash the jar and be connected, really flash the jar respectively with subsider and vacuum flash system connection, vacuum flash system and aspirator suction end be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022371278.3U CN213885006U (en) | 2020-10-22 | 2020-10-22 | Gasification high-flash evaporation gas recycling and vacuum negative pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022371278.3U CN213885006U (en) | 2020-10-22 | 2020-10-22 | Gasification high-flash evaporation gas recycling and vacuum negative pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213885006U true CN213885006U (en) | 2021-08-06 |
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ID=77114151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022371278.3U Active CN213885006U (en) | 2020-10-22 | 2020-10-22 | Gasification high-flash evaporation gas recycling and vacuum negative pumping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213885006U (en) |
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2020
- 2020-10-22 CN CN202022371278.3U patent/CN213885006U/en active Active
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