CN215388323U - Filter device of desulfurizing tower - Google Patents
Filter device of desulfurizing tower Download PDFInfo
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- CN215388323U CN215388323U CN202121004590.7U CN202121004590U CN215388323U CN 215388323 U CN215388323 U CN 215388323U CN 202121004590 U CN202121004590 U CN 202121004590U CN 215388323 U CN215388323 U CN 215388323U
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- shell
- filter
- circulating pump
- pipeline
- desulfurizing tower
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Abstract
The utility model discloses a filtering device of a desulfurizing tower, which comprises the desulfurizing tower and a circulating pump, wherein an inlet of the circulating pump is provided with an external filter, the external filter comprises a shell, a sealing cover arranged at the upper end of the shell and a filtering cylinder arranged in the shell, one side of the shell is provided with a water inlet used for being connected with a pipeline of the desulfurizing tower, the other side of the shell is provided with a water outlet used for being connected with the circulating pump, and the filtering area of the filtering cylinder is at least three times that of the water inlet of the shell. The utility model has simple structure and reduces the starting and stopping frequency of the circulating pump.
Description
Technical Field
The utility model relates to the field of desulfurizing towers, in particular to a filtering device of a desulfurizing tower.
Background
Foreign matters (such as fallen anticorrosive materials) in the desulfurizing tower enter the circulating pipeline to cause the blockage of the pipeline or the nozzle, so an external filter screen is arranged at the inlet of a circulating pump of the desulfurizing tower. But the anti-corrosion layer glass flakes, the wear-resistant rubber skin and the reinforced PP plate in the tower are deformed and fall off to enter the external filter screen due to the change of construction quality and operation condition. And meanwhile, the slurry continuously circulates in the tower, gypsum crystals continuously adhere to and scale on the four walls and partition walls in the tower, so that plates are formed, after the operation working condition changes, crystals on the wall of the tower are dried by smoke, cracked and fall off and are sucked into an external filter screen, and the dried and fallen blocky gypsum crystals cannot be quickly dissolved in the filter screen, so that the filter screen is blocked. In order to ensure the normal operation of the circulating pump, the external filter screen of the desulfurizing tower needs to be continuously cleaned, so that the circulating pump is frequently started and stopped, the work is influenced, the slurry is arranged at the lower part in the outlet pipeline of the circulating pump, the air is arranged at the upper part, the impact of the liquid-gas two-phase flow on the spraying pipeline is quite large in the starting and stopping process, and the vibration of the circulating pump starting circulating pipeline seriously influences the safe operation of a desulfurizing system.
Disclosure of Invention
The utility model aims to provide a filtering device which is simple in structure and can reduce the starting and stopping frequency of a circulating pump, aiming at the defects of the prior art.
The technical scheme of the utility model is as follows:
the utility model provides a filter equipment of desulfurizing tower, includes desulfurizing tower and circulating pump, the import of circulating pump is equipped with external filter, external filter includes the casing, sets up the sealed lid in the casing upper end and sets up the cartridge filter in the casing, one side of casing with be equipped with be used for the water inlet that links to each other with the desulfurizing tower pipeline, the opposite side is equipped with the delivery port that is used for linking to each other with the circulating pump, the filter area of cartridge filter is the triple of casing water inlet at least.
Further, the filter screen aperture of cartridge filter is for being greater than 12mm, is less than 15 mm.
Furthermore, a flushing pipeline is arranged on the side wall of the shell, a sewage draining outlet is formed in the bottom of the shell, a sewage draining pipeline extending out of the shell is arranged at the sewage draining outlet, and a wafer type butterfly valve is arranged on the sewage draining pipeline.
Further, the wall thickness of the shell is 8-10 mm.
Further, the wall thickness of cartridge filter is 3 ~ 5 mm.
Further, the sealing cover is fixed on the shell through bolts, and the bolts are lifting bolts.
Adopt above-mentioned technical scheme to have following beneficial effect:
the utility model has simple structure, adopts the external filter which is provided with the built-in filter cylinder, the filtering area of the filter cylinder is at least three times of the water inlet of the shell, and the circulating pump can still normally operate after the filter screen of the filter cylinder is partially blocked because the filtering area of the filter cylinder is more than three times of the inlet of the circulating pump. The filter screen of the external filter is prevented from being damaged, and larger impurities enter the nozzle to cause the nozzle to be blocked, so that the filtering effect is improved.
The filter screen aperture of cartridge filter is greater than 12mm, is less than 15mm, can filter the impurity more than 12mm, and the inside partial impurity of desulfurizing tower will filter through built-in filter screen after the agitator stirring (the very big massive impurity of few part will deposit the bottom of the tower, opens desulfurizing tower manhole door and clear up when the desulfurization is overhauld) to prevent that the circulating pump from frequently clearing up external filter screen because of impurity is too many.
The following description is further described in conjunction with the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the external filter of the present invention.
In the attached drawing, 1 is a desulfurizing tower, 2 is a circulating pump, 3 is an external filter, 3-1 is a shell, 3-2 is a sealing cover, 3-3 is a filter cylinder, 3-4 is a flushing pipeline, and 4 is a sewage pipeline.
Detailed Description
Specific example 1:
referring to fig. 1 and 2, the filter device of the desulfurization tower comprises a desulfurization tower 1 and a circulating pump 2, an inlet of the circulating pump 2 is provided with an external filter 3, the external filter 3 comprises a shell 3-1, a sealing cover 3-2 arranged at the upper end of the shell and a filter cylinder 3-3 arranged in the shell, the shell 3-1 is cylindrical, the wall thickness of the shell 3-1 is 8-10 mm, one side of the shell 3-1 is provided with a water inlet used for being connected with a pipeline of the desulfurization tower 1, the other side of the shell is provided with a water outlet used for being connected with the circulating pump 2, the water inlet and the water outlet are arranged in opposite directions, the water inlet is provided with a first connecting flange used for being connected with the pipeline of the desulfurization tower, and the water outlet is provided with a second connecting flange used for being connected with the pipeline of the circulating pump. The inner side of the shell 3-1 is provided with a support frame, the upper end of the filter cartridge 3-3 is provided with a flanging, the filter cartridge 3-3 is matched and fixed in the shell through the flanging and the support frame, so that the filter cartridge 3-3 is suspended in the inner cavity of the shell, the filtering area of the filter cartridge 3-3 is at least three times of the water inlet of the shell, namely the area of the filter screen of the filter cartridge 3-3 is equal to or more than three times of the area of the water inlet of the shell, and when the filter screen of the filter cartridge 3-3 is partially blocked, the circulating pump can still normally operate. The aperture of the filter screen of the filter cartridge 3-3 is larger than 12mm and smaller than 15mm, so that the aperture of the filter screen is enlarged, and a large amount of impurities are prevented from entering the external filter of the circulating pump and being frequently cleaned. The wall thickness of the filter cartridge 3-3 is 3-5 mm. Further, the upper end of the filter cartridge 3-3 is an inclined opening.
The side wall of the shell 3-1 is provided with a flushing pipeline 3-4, the flushing pipeline 3-4 is connected with a water outlet pipe of the circulating water pump, the flushing pipeline 3-4 is located at the middle lower part of the filter cylinder 3-3, the bottom of the shell 3-1 is provided with a sewage discharge outlet, the sewage discharge outlet is provided with a sewage discharge pipeline 4 extending out of the shell 3-1, and the sewage discharge pipeline 4 is provided with a clamp type butterfly valve so that impurities in the sewage discharge pipeline 4 can be discharged. The sealing cover 3-2 is fixed on the shell 3-1 through bolts, and the bolts are lifting bolts, so that when the filter cartridge in the external filter needs to be overhauled, the sealing cover 3-2 can be quickly opened through the lifting bolts.
In this particular embodiment: the wall thickness of the shell of the external filter 3 is 8mm, the design pressure is 1.6Mpa, the filtering precision of the filter cartridge 3-3 is 10mm, and the wall thickness of the filter cartridge is 3 mm. The filtering area (surface area) of the filter cartridge is 4 times of that of the water inlet of the shell, the pressure loss is less than or equal to 0.02Mpa, and the design flow is more than or equal to 1800m 3/h. The first connecting flange has a pressure rating of 150LB and the second connecting flange has a pressure rating of 2.5 MPa. The first connecting flange adopts a DN300 flange, soA sewage draining outlet is arranged at the center of the bottom of the shell 3-1 and the filter cylinder 3-3, and the aperture of the sewage draining outlet is
And the sewage discharge pipeline 4 adopts a DN80 pipe, and the sewage discharge pipeline 4 extends to the bottom of the filter cylinder by 10-20 mm. The height of the shell is 2000mm, and the height of the center of the first connecting flange from the ground is 1400 mm.
Claims (6)
1. The utility model provides a filter equipment of desulfurizing tower, includes desulfurizing tower and circulating pump, the import of circulating pump is equipped with external filter, its characterized in that: the external filter comprises a shell, a sealing cover arranged at the upper end of the shell and a filter cartridge arranged in the shell, wherein one side of the shell is provided with a water inlet used for being connected with a pipeline of the desulfurizing tower, the other side of the shell is provided with a water outlet used for being connected with the circulating pump, and the filtering area of the filter cartridge is at least three times that of the water inlet of the shell.
2. The filter device of the desulfurization tower of claim 1, wherein: the aperture of the filter screen of the filter cartridge is larger than 12mm and smaller than 15 mm.
3. The filter device of the desulfurization tower of claim 1, wherein: the side wall of the shell is provided with a flushing pipeline, the bottom of the shell is provided with a sewage draining outlet, the sewage draining outlet is provided with a sewage draining pipeline extending out of the shell, and the sewage draining pipeline is provided with a wafer type butterfly valve.
4. The filtration apparatus of a desulfurization tower according to claim 1, 2 or 3, wherein: the wall thickness of the shell is 8-10 mm.
5. The filtration apparatus of a desulfurization tower according to claim 1, 2 or 3, wherein: the wall thickness of cartridge filter is 3 ~ 5 mm.
6. The filtration apparatus of a desulfurization tower according to claim 1, 2 or 3, wherein: the sealing cover is fixed on the shell through bolts, and the bolts are lifting bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121004590.7U CN215388323U (en) | 2021-05-11 | 2021-05-11 | Filter device of desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121004590.7U CN215388323U (en) | 2021-05-11 | 2021-05-11 | Filter device of desulfurizing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215388323U true CN215388323U (en) | 2022-01-04 |
Family
ID=79674941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121004590.7U Active CN215388323U (en) | 2021-05-11 | 2021-05-11 | Filter device of desulfurizing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215388323U (en) |
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2021
- 2021-05-11 CN CN202121004590.7U patent/CN215388323U/en active Active
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