CN213853293U - External filter screen device of desulfurizing tower circulating line - Google Patents
External filter screen device of desulfurizing tower circulating line Download PDFInfo
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- CN213853293U CN213853293U CN202022186218.4U CN202022186218U CN213853293U CN 213853293 U CN213853293 U CN 213853293U CN 202022186218 U CN202022186218 U CN 202022186218U CN 213853293 U CN213853293 U CN 213853293U
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- screen device
- circulating line
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Abstract
The utility model discloses an external filter screen device of a circulating pipeline of a desulfurizing tower, which comprises a first connecting pipe, wherein a channel is arranged inside the first connecting pipe, the first connecting pipe comprises a straight pipe and a reducer pipe, the big end of the reducer pipe is fixedly connected with one end of the straight pipe, and the small end of the reducer pipe is provided with a liquid inlet; the other end of the straight pipe is fixedly provided with a first flange plate; the second connecting pipe is internally provided with a channel which is a conical pipe, the small head end is provided with a liquid outlet, and the large head end is fixedly provided with a third flange disc; and the filter screen is fixedly arranged between the first flange plate and the third flange plate. Gaskets are respectively arranged between the filter screen and the third flange plate as well as between the filter screen and the first flange plate, and the gaskets are made of anti-seepage ethylene propylene diene monomer rubber materials. The bottom of the straight pipe is provided with a sewage outlet. The top of the straight tube is provided with a hand opening. The utility model provides an external filter screen device can make the staff in time maintain and change the filter screen, and the filter screen is difficult to damage.
Description
Technical Field
The utility model belongs to the technical field of the desulfurizing tower filter screen, specifically speaking relates to an external filter unit of desulfurizing tower circulating line.
Background
At present, in a wet desulphurization process, particularly in a lime (limestone) -gypsum desulphurization process, a filter screen is generally additionally arranged in a desulphurization tower for filtering impurities in slurry and avoiding nozzle blockage.
In the process of implementing the invention, the inventor finds that the prior art has the following disadvantages: 1. the filter screen is arranged in the desulfurizing tower, so that the use condition of the filter screen cannot be monitored in real time, whether the filter screen is damaged or not cannot be confirmed, and the damaged filter screen cannot be replaced and maintained in time; 2. the installation position of the filter screen and the inner wall of the tower is greatly impacted by slurry, and the position connected with the inner wall of the tower is easy to deform and damage; 3. once the filter screen is damaged, need close equipment, can change with the evacuation of thick liquids in the tower, influence production, it is loaded down with trivial details.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above not enough, provide an external filter unit of desulfurizing tower circulating line, overcome the defect that prior art exists, can make the convenient timely maintenance of operating personnel change the filter screen, and the filter screen is difficult to damage.
In order to solve the technical problem, the technical scheme of the utility model is that:
an external filter screen device of desulfurizing tower circulating pipeline includes
The first connecting pipe is internally provided with a channel and comprises a straight pipe and a reducer pipe, the large end of the reducer pipe is fixedly connected with one end of the straight pipe, and the small end of the reducer pipe is provided with a liquid inlet; the other end of the straight pipe is fixedly provided with a first flange plate;
the second connecting pipe is internally provided with a channel which is a conical pipe, the small head end is provided with a liquid outlet, and the large head end is fixedly provided with a third flange disc;
and the filter screen is fixedly arranged between the first flange plate and the third flange plate.
Preferably, gaskets are respectively arranged between the filter screen and the third flange plate as well as between the filter screen and the first flange plate, and the gaskets are made of anti-seepage ethylene propylene diene monomer rubber materials.
Preferably, the bottom of the straight pipe is provided with a sewage draining outlet.
Preferably, the top of the straight pipe is provided with a hand opening.
Preferably, the cross section area of the opening of the filter screen is 1.5-2 times of the pipe diameter cross section area of the liquid inlet.
Preferably, the filter screen is a stainless steel filter screen made of stainless steel materials.
Preferably, the liquid inlet is communicated with the desulfurizing tower through a pipeline;
the liquid outlet is communicated with the circulating pump through a pipeline.
The utility model adopts the above technical scheme, compare with prior art, have following advantage:
1. the installation position of the filter screen is arranged outside the desulfurizing tower, so that the service condition of the filter screen can be monitored in real time;
2. the mounting position of the filter screen is arranged outside the desulfurizing tower, and the joint of the filter screen and the outer wall of the tower has no slurry impact force, so that the filter screen is not easy to deform and damage;
3. the filter screen is convenient to replace, manpower and material resources are saved, and the maintenance cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an external filter screen device of a circulating pipeline of a desulfurizing tower in the utility model;
fig. 2 is a schematic structural diagram of the middle filter screen of the present invention.
In the figure, the position of the upper end of the main shaft,
1-a first connecting pipe, 2-a second connecting pipe, 3-a filter screen, 4-a first flange plate, 5-a second flange plate, 6-a third flange plate, 7-a gasket, 11-a sewage discharge outlet, 12-a hand opening, 13-a straight pipe, 14-a reducer pipe, 15-a liquid inlet, 16-a liquid outlet and 31-a mounting hole.
Detailed Description
In order to clearly understand the technical features, objects and effects of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings, and those skilled in the art will understand that the following does not limit the scope of the present invention.
In an embodiment, as shown in fig. 1-2, an external filter screen device for a circulating pipeline of a desulfurization tower includes a first connecting pipe 1, a second connecting pipe 2, and a filter screen 3, where the first connecting pipe 1 is communicated with the second connecting pipe 2, and the filter screen 3 is disposed between the first connecting pipe 1 and the second connecting pipe 2 and is fixed by bolts.
The first connecting pipe 1 is internally provided with a channel and comprises a straight pipe 13 and a reducer pipe 14, the large end of the reducer pipe 14 is fixedly connected with one end of the straight pipe 13, the small end of the reducer pipe 14 is provided with a liquid inlet 15, and the liquid inlet 15 is communicated with a desulfurizing tower through a pipeline;
the bottom of the straight pipe 13 is provided with a sewage discharge outlet 11 for cleaning impurities filtered by the filter screen 3;
the top of the straight pipe 13 is provided with a hand opening 12 for manually cleaning impurities filtered by the filter screen 3;
the sewage draining exit 11 and the hand opening 12 are respectively provided with a plugging flange for plugging;
the other end of the straight pipe 13 is provided with a first flange plate 4;
the second connecting pipe 2 is a conical pipe, a liquid outlet 18 is arranged at the small end of the conical pipe of the second connecting pipe 2, and the liquid outlet 18 is communicated with the circulating pump through a pipeline. The liquid outlet 18 is connected with a pipeline bolt through a second flange 5;
a third flange plate 6 is fixedly arranged at the big end of the conical pipe of the second connecting pipe 2;
the filter screen 3 is circular, and mounting holes 31 are formed in the periphery of the filter screen; the filter screen 3 is arranged between the third flange plate 6 and the first flange plate 4, and the mounting hole 31 is matched with the flange holes of the third flange plate 6 and the first flange plate 4 and is fixed through bolts;
the sectional area of the opening of the filter screen 3 is 1.5 to 2 times of the sectional area of the pipe diameter of the liquid inlet;
the filter screen 3 is a stainless steel filter screen 3 made of stainless steel material.
The periphery of the gasket 7 is provided with flange holes.
The sizes of the filter screen 3, the first connecting pipe 1 and the second connecting pipe 2 are selected according to the size of the inlet pipe diameter of the circulating pump, in order to ensure the flow area of the pipeline, in this embodiment, the inlet pipe diameter of the circulating pump is DN400, the pipe diameter of the fixed pipeline of the filter screen 3 is DN600 at least, and the opening sectional area of the filter screen 3 is 1.5-2 times of the pipe diameter sectional area of the inlet pipe, so as to ensure the flow area of the pipeline.
Once the filter screen 3 is damaged, the online maintenance can be realized only by closing the inlet valve of the circulating pump without shutting down the equipment, so that manpower and material resources are saved, and the maintenance cost is reduced.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (7)
1. The utility model provides an external filter screen device of desulfurizing tower circulating line which characterized in that: comprises that
The first connecting pipe (1) is internally provided with a channel and comprises a straight pipe (13) and a reducing pipe (14), the large end of the reducing pipe (14) is fixedly connected with one end of the straight pipe (13), and the small end of the reducing pipe (14) is provided with a liquid inlet (15); the other end of the straight pipe (13) is fixedly provided with a first flange plate (4);
the second connecting pipe (2) is internally provided with a channel which is a conical pipe, the small end is provided with a liquid outlet (16), and the large end is fixedly provided with a third flange plate (6);
and the filter screen (3) is fixedly arranged between the first flange plate (4) and the third flange plate (6).
2. The external filter screen device of desulfurization tower circulating line of claim 1, characterized in that:
gaskets (7) are respectively arranged among the filter screen (3), the third flange plate (6) and the first flange plate (4), and the gaskets (7) are made of anti-leakage ethylene propylene diene monomer rubber materials.
3. The external filter screen device of desulfurization tower circulating line of claim 1, characterized in that:
the bottom of the straight pipe (13) is provided with a sewage outlet (11).
4. The external filter screen device of desulfurization tower circulating line of claim 1, characterized in that:
the top of the straight pipe (13) is provided with a hand opening (12).
5. The external filter screen device of desulfurization tower circulating line of claim 1, characterized in that:
the cross section of the opening of the filter screen (3) is 1.5 to 2 times of the cross section of the pipe diameter of the liquid inlet.
6. The external filter screen device of desulfurization tower circulating line of claim 1, characterized in that:
the filter screen (3) is a stainless steel filter screen (3) made of stainless steel material.
7. The external filter screen device of desulfurization tower circulating line of claim 1, characterized in that:
the liquid inlet (15) is communicated with the desulfurizing tower through a pipeline;
the liquid outlet (16) is communicated with the circulating pump through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186218.4U CN213853293U (en) | 2020-09-29 | 2020-09-29 | External filter screen device of desulfurizing tower circulating line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186218.4U CN213853293U (en) | 2020-09-29 | 2020-09-29 | External filter screen device of desulfurizing tower circulating line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213853293U true CN213853293U (en) | 2021-08-03 |
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ID=77070305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022186218.4U Active CN213853293U (en) | 2020-09-29 | 2020-09-29 | External filter screen device of desulfurizing tower circulating line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213853293U (en) |
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2020
- 2020-09-29 CN CN202022186218.4U patent/CN213853293U/en active Active
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