CN220424960U - Ultra-clean discharge slurry supply system for liquid-holding layer of absorption tower - Google Patents
Ultra-clean discharge slurry supply system for liquid-holding layer of absorption tower Download PDFInfo
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- CN220424960U CN220424960U CN202321927344.8U CN202321927344U CN220424960U CN 220424960 U CN220424960 U CN 220424960U CN 202321927344 U CN202321927344 U CN 202321927344U CN 220424960 U CN220424960 U CN 220424960U
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- liquid
- holding layer
- absorption tower
- slurry supply
- main pipe
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- 239000002002 slurry Substances 0.000 title claims abstract description 51
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 22
- 235000019738 Limestone Nutrition 0.000 claims abstract description 18
- 239000006028 limestone Substances 0.000 claims abstract description 18
- 238000004064 recycling Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 abstract description 2
- 230000023556 desulfurization Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of wet desulfurization of coal-fired power generation units, and particularly relates to a liquid-holding layer ultra-clean discharge slurry supply system of an absorption tower, which comprises a limestone slurry supply pump, wherein an outlet of the limestone slurry supply pump is connected with an inlet of a liquid-holding layer recycling box through a first main pipe, the outlet of the liquid-holding layer recycling box is provided with the absorption tower slurry supply pump, an outlet of the absorption tower slurry supply pump is connected with an inlet of a slurry circulating pump through a second main pipe, a first standby pipeline is connected to the first main pipe, and the other end of the first standby pipeline is connected with the second main pipe. According to the utility model, the first standby pipeline is additionally arranged on the first main pipe, the first regulating valve and the third electric valve can be closed when the unit runs under high load, the slurry is directly conveyed to the inlet of the slurry circulating pump from the limestone slurry supply pump through the first standby pipeline, the transferring process of the liquid-holding layer recycling tank is omitted, the running time of the slurry supply pump of the absorption tower is shortened, the single unit runs for about 6 hours per day, and 3600KW of electricity can be saved in month.
Description
Technical Field
The utility model belongs to the technical field of wet desulfurization of coal-fired power generation units, and particularly relates to an ultra-clean discharge slurry supply system for a liquid-holding layer of an absorption tower.
Background
In recent years, due to the ultra-clean emission requirements of environmental protection departments on coal-fired units, different ultra-clean emission modifications are carried out on each power plant, after ultra-clean modification of a liquid-holding layer of an absorption tower, the problem that a slurry supply system still exists is found in the power of a limestone slurry supply pump, and the slurry supply amount is large, but when the unit is under normal load, not so much slurry is used, so that the slurry needs to be stored into the liquid-holding layer recycling tank through the limestone slurry supply pump, then is transported to the slurry circulating pump through the lower-power absorption tower slurry supply pump, and is further supplied to the absorption tower, but when the unit is under high-load operation, the slurry supply amount of the limestone slurry supply pump and the slurry consumption of the absorption tower can be basically kept level, and in this case, the slurry still needs to pass through the liquid-holding layer recycling tank, so that the transportation energy consumption of the limestone is greatly increased.
Disclosure of Invention
The utility model provides an ultra-clean discharge slurry supply system for a liquid-holding layer of an absorption tower aiming at the problems.
The utility model adopts the following technical scheme to achieve the aim:
the utility model provides a liquid-holding layer ultra-clean emission supplies thick liquid system, includes the limestone supplies the thick liquid pump, the export of limestone supplies the thick liquid pump is through the female pipe and the entry linkage of liquid-holding layer recycling case be provided with a transfer gate on the female pipe the export of liquid-holding layer recycling case is provided with the absorber and supplies thick liquid pump, the export of absorber supplies the thick liquid pump is through the entry linkage of female pipe No. two and thick liquid circulating pump be provided with a transfer gate on the female pipe No. two be connected with a stand-by line on the female pipe, a stand-by line is located between transfer gate and the limestone supplies the thick liquid pump, a stand-by line's the other end is connected with female pipe No. two be provided with No. three motorised valves on the female pipe No. two, a stand-by line is located between No. two transfer gates and No. three motorised valves a stand-by line is provided with a motorised valve.
Further, a first manual valve and a second manual valve are respectively arranged at two ends of the first standby pipeline, a pulp discharging pipe is connected to the lowest point of the first standby pipeline and used for discharging pulp in the first standby pipeline into a trench of an absorption tower during maintenance, and a third manual valve is arranged on the pulp discharging pipe.
Still further still be connected with No. two standby pipeline on the main pipe, and hookup location is located between No. one transfer gate and the liquid-holding layer recycling case, no. two standby pipeline's the other end and the entry linkage of thick liquid circulating pump No. two standby pipeline is provided with No. two motorised valves on the No. two standby pipeline.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the first standby pipeline is additionally arranged on the first main pipe, when the unit runs under high load, the first regulating valve and the third electric valve can be closed, the slurry is directly conveyed to the inlet of the slurry circulating pump from the limestone slurry supply pump through the first standby pipeline, the transferring process of the liquid-holding layer recycling tank is omitted, the running time of the slurry supply pump of the absorption tower is reduced, the single machine can use 3600KW in a daily way for about 6 hours;
the utility model adds a first standby pipeline and a second standby pipeline, when the pipeline behind the first gate is leaked, the slurry can be transported through the first standby pipeline, and when the pipeline behind the second gate is leaked, the slurry can be transported through the second standby pipeline, and when the maintenance is carried out, the operation of the whole slurry supply system is not influenced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure, a limestone slurry supply pump-1, a main pipe-2, a liquid-holding layer recycling box-3, a first regulating valve-4, an absorption tower slurry supply pump-5, a second main pipe-6, a third electric valve-7, a second regulating valve-8, a first standby pipeline-9, a first electric valve-10, a first manual valve-11, a second manual valve-12, a slurry discharge pipe-13, a third manual valve-14, a second standby pipeline-15 and a second electric valve-16.
Detailed Description
In order to further illustrate the technical scheme of the utility model, the utility model is further illustrated by the following examples.
As shown in fig. 1, the ultra-clean discharge slurry supply system for the liquid-holding layer of the absorption tower comprises a limestone slurry supply pump 1, wherein an outlet of the limestone slurry supply pump 1 is connected with an inlet of a liquid-holding layer recirculation tank 3 through a primary pipe 2, a primary regulating valve 4 is arranged on the primary pipe 2, an absorption tower slurry supply pump 5 is arranged at an outlet of the liquid-holding layer recirculation tank 3, an outlet of the absorption tower slurry supply pump 5 is connected with an inlet of a slurry circulation pump through a secondary pipe 6, a secondary regulating valve 8 is arranged on the secondary pipe 6, a primary pipe 2 is connected with a primary standby pipeline 9, the primary standby pipeline 9 is arranged between the primary regulating valve 4 and the limestone slurry supply pump 1, the other end of the primary pipe 9 is connected with the secondary pipe 6, a third electric valve 7 is arranged on the secondary pipe 6, a connection position of the primary pipe 9 and the secondary pipe 6 is arranged between the primary regulating valve 8 and the third electric valve 7, a primary pipe 9 is provided with a primary pipe 10, a primary pipe 10 is arranged on the primary pipe 9 and a secondary pipe 13, a primary pipe 13 is arranged on the primary pipe and a secondary pipe 13, and a secondary pipe 13 is arranged on the primary pipe and a secondary pipe 13 is connected with a primary pipe, and a secondary pipe 13 is arranged on the primary pipe and a secondary pipe 13.
The primary pipe 2 is also connected with a second standby pipeline 15, the connection position is positioned between the first regulating valve 4 and the liquid-holding layer recycling box 3, the other end of the second standby pipeline 15 is connected with an inlet of the slurry circulating pump, and the second standby pipeline 15 is provided with a second electric valve 16.
While the principal features and advantages of the present utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (3)
1. The utility model provides an ultra-clean discharge of liquid-holding layer of absorption tower supplies thick liquid system, includes limestone and supplies thick liquid pump (1), the export of limestone supplies thick liquid pump (1) is through a main pipe (2) and the entry linkage of liquid-holding layer recirculation case (3) be provided with a transfer gate (4) on a main pipe (2) the export of liquid-holding layer recirculation case (3) is provided with absorption tower and supplies thick liquid pump (5), the export of absorption tower supplies thick liquid pump (5) is through the entry linkage of No. two main pipes (6) and thick liquid circulating pump be provided with No. two transfer gates (8), its characterized in that on No. two main pipes (6): be connected with stand-by line (9) on main pipe (2), stand-by line (9) are located between main pipe (6) No. two main pipe (6) and the limestone slurry pump (1) No. one, the other end of stand-by line (9) is connected No. one, stand-by line (9) are located between main pipe (6) No. two main pipe (8) and No. three electric valves (7) with No. two electric valves (10) are provided with on stand-by line (9).
2. The absorber liquid-holding layer ultra-clean discharge slurry supply system of claim 1, wherein: the two ends of the first standby pipeline (9) are respectively provided with a first manual valve (11) and a second manual valve (12), the lowest point of the first standby pipeline (9) is connected with a slurry discharging pipe (13) for discharging slurry in the first standby pipeline (9) into an absorption tower trench during maintenance, and the slurry discharging pipe (13) is provided with a third manual valve (14).
3. The absorber liquid-holding layer ultra-clean discharge slurry supply system of claim 1, wherein: the primary pipe (2) is also connected with a second standby pipeline (15), the connecting position is located between the first regulating valve (4) and the liquid-holding layer recycling box (3), the other end of the second standby pipeline (15) is connected with an inlet of the slurry circulating pump, and the second standby pipeline (15) is provided with a second electric valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321927344.8U CN220424960U (en) | 2023-07-20 | 2023-07-20 | Ultra-clean discharge slurry supply system for liquid-holding layer of absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321927344.8U CN220424960U (en) | 2023-07-20 | 2023-07-20 | Ultra-clean discharge slurry supply system for liquid-holding layer of absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220424960U true CN220424960U (en) | 2024-02-02 |
Family
ID=89687059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321927344.8U Active CN220424960U (en) | 2023-07-20 | 2023-07-20 | Ultra-clean discharge slurry supply system for liquid-holding layer of absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220424960U (en) |
-
2023
- 2023-07-20 CN CN202321927344.8U patent/CN220424960U/en active Active
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