CN218107044U - Anti-blocking demister applied to SO2 multistage conversion system - Google Patents

Abstract

The application discloses be applied to SO2 multistage conversion system's anti-clogging demister belongs to defoaming device technical field, and one kind of one of them is applied to SO2 multistage conversion system's anti-clogging demister, including the demister shell, helical blade is installed in the rotation of the inside central position of demister shell. The spiral blade is mounted, is of a passive rotating blade structure and is driven by the pressure and the flow velocity of an air source without taking a motor as a driving force, so that energy is saved; meanwhile, the helical blade can conveniently sweep away the accumulated dust attached to the inner wall due to the special structure of the helical blade, and has certain self-cleaning capability. Even in low-speed air current, because its rotating vane is itself just to have the function of defoaming, the silk grid is also all installed to the upper and lower top surface of demister shell, can regard as pure static demister to use, makes the device still can have certain defoaming ability in low-speed air current, greatly reduced follow-up equipment and take place the risk of corroding under the undulant condition of acid mist.

Description

Anti-blocking demister applied to SO2 multistage conversion system

Technical Field

The application relates to the technical field of defoaming devices, in particular to an anti-blocking demister applied to an SO2 multistage conversion system.

Background

The foam remover belongs to a gas-liquid separation device and is used for removing liquid foam from gas. When the discharged gas contains liquid foam (and sometimes dust), the purity is greatly reduced, the product quality is affected, and liquid consumption is caused. Such gases, if released into the atmosphere, can also contribute to atmospheric pollution. Therefore, it is necessary to develop a demister with good defoaming effect and high efficiency. And in multistage conversion system of SO2, the buckled plate demister is often adopted, because the handling capacity of buckled plate demister is big, it is convenient to wash, be difficult for the scale deposit, it is also suitable to contain impurity double-phase defoaming, can infinitely remove the foam, there is great advantage, but the defoaming efficiency of buckled plate demister is not high, it is unstable to remove the foam effect, in multistage conversion system of SO2, the buckled plate demister sets up in the drying tower, remove the foam to SO2, and heat SO2 in multistage heat exchange tower, and enter the conversion tower and convert. Once the corrugated plate demister is blocked or damaged, the generated acid mist fluctuation is easy to corrode the heat exchange tower and the pipeline, and the equipment is damaged.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, this application provides a be applied to SO2 multistage conversion system prevent blockking up demister, has overcome prior art's not enough, aims at solving the problem that the potential safety hazard easily appears in the inside electric power facility of the gaseous corrosion demister of prior art.

In order to achieve the above purpose, the present application provides the following technical solutions: the anti-blocking demister applied to the SO2 multistage conversion system comprises a demister shell, wherein a spiral blade is rotatably arranged in the central position inside the demister shell.

As a preferred technical scheme of the application, a rotating blade shaft is fixedly installed at the position of a middle shaft in the demister shell, and a middle hole of the spiral blade is sleeved on the rotating blade shaft.

Through adopting above-mentioned technical scheme, can make the air current only pass through helical blade, improve the efficiency of defoaming. Through adopting above-mentioned technical scheme, can realize that helical blade takes place to rotate in the inside of demister shell, helical blade is at the during operation, is driven rotatoryly by the air current, can produce certain centrifugal force, makes the liquid drop can flow towards the edge of commentaries on classics leaf, can take away the dust of part attached to on commentaries on classics leaf simultaneously, than quiet defoaming silk grizzly, has apparent self-cleaning ability, alleviates maintenance personnel's burden greatly.

As a preferred technical scheme of this application, demister shell's top and bottom fixed mounting have airtight bearing, just helical blade's top surface and bottom surface with airtight bearing's inner circle fixed connection.

By adopting the technical scheme, the friction force generated when the helical blade rotates can be greatly reduced, so that the helical blade can remove foam for the air flow as much as possible in low-speed air flow.

As an optimal technical scheme of this application, the top surface equidistance fixed mounting of demister shell has six bolt installation through-holes.

Through adopting above-mentioned technical scheme, make the demister can conveniently install the exit position at the air current.

As a preferred technical scheme of the application, a plurality of fine through holes are dug in the blades of the helical blades.

Because of the special structure of helical blade self, even if at low-speed air current or because of the bearing leads to helical blade can not take place to rotate because of laying dust rotation is sluggish, have the function of defoaming because of its rotating vane itself, the silk grid is also all installed to the top surface about the demister shell, can use the cost of losing certain defoaming efficiency, use as pure static demister, make the device still can have certain defoaming ability in the low-speed air current, greatly reduced follow-up equipment take place the risk of corroding under the undulant condition of acid mist.

As a preferred technical scheme of this application, the inner wall of demister shell is equipped with unsmooth drainage structure.

By adopting the technical scheme, the dust attached to the inner wall can be conveniently swept and guided by matching with the special structure of the helical blade, and the self-cleaning device has certain self-cleaning capability.

As a preferred technical scheme of the application, the upper top surface and the lower top surface of the demister shell are fixedly provided with wire grid grids.

Through adopting above-mentioned technical scheme, the silk net bars of top surface all can carry out the defoaming work about the demister shell, can further get rid of the foam, have guaranteed the efficiency of demister.

The beneficial effect of this application:

the spiral blade is provided with the rotating vane-shaped wire grid, and is a passive rotating vane structure which is not driven by a motor as a driving force but is driven by the pressure and the flow velocity of an air source, so that the structure is simple, the complexity of motor driving is saved, the energy is saved, and potential safety hazards caused by corrosion of the motor by acid gas are avoided; meanwhile, the helical blade can conveniently sweep away the accumulated dust attached to the inner wall due to the special structure of the helical blade, and has certain self-cleaning capability;

the airtight bearing is arranged, the flow of the air flow passing through the gap of the bearing can be reduced by the airtight bearing, the air flow passes through the helical blades as much as possible, and the defoaming efficiency is improved; meanwhile, the friction force generated when the helical blade rotates can be greatly reduced, so that the helical blade can remove foam for the air flow as much as possible in low-speed air flow;

the helical blade is driven to rotate by the airflow when working, a certain centrifugal force can be generated, liquid drops can flow towards the edge of the rotating blade, and meanwhile, part of dust attached to the rotating blade can be taken away.

Drawings

Fig. 1 is a schematic cross-sectional view of the present application.

FIG. 2 is a schematic view of the helical blade configuration of the present application;

FIG. 3 is a schematic front view of the present application;

FIG. 4 is a schematic top view of the present application;

fig. 5 is a left side view schematic of the present application.

In the figure: 1. a demister housing; 2. a helical blade; 3. rotating the blade shaft; 4. an airtight bearing; 5. the bolt is provided with a through hole.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Referring to fig. 1, the anti-clogging demister applied to an SO2 multistage conversion system comprises a demister shell 1, wherein a helical blade 2 is rotatably mounted at the central position in the demister shell 1; a rotating blade shaft 3 is fixedly arranged at the position of a middle shaft in the demister shell 1, and a middle hole of the spiral blade 2 is sleeved on the rotating blade shaft 3; the top and the bottom of the demister shell 1 are fixedly provided with an airtight bearing 4, and the top and the bottom of the helical blade 2 are fixedly connected with the inner ring of the airtight bearing 4.

Referring to fig. 3 to 5, further, six bolt mounting through holes 5 are fixedly installed at the top surface of the demister housing 1 at equal intervals. The device can be fixed in its entirety at the outlet position of the air stream by means of bolts by means of bolt mounting through holes 5.

Referring to fig. 2, further, a plurality of fine through holes are dug on the blade of the helical blade 2. The helical blade 2 is responsible for the work of defoaming, when the gas with the mist strikes the helical blade 2, through the tiny through-hole on the helical blade 2, can make the air current freely pass through and make the mist liquid drop blocked and adhere to the helical blade 2, the helical blade 2 is driven by the speed and the pressure of air current self and takes place to rotate, makes the liquid drop that adheres to the helical blade throw away the blade end of helical blade 2 by its self centrifugal force.

Referring to fig. 1, further, the inner wall of the demister housing 1 is provided with a concave-convex liquid guiding structure, the mist flows into the concave-convex liquid guiding structure arranged on the inner wall, and the accumulated dust attached to the inner wall is swept and guided by the self-sweeping action of the helical blade during rotation, and flows down along the inner side edge through the concave-convex liquid guiding structure arranged on the inner wall.

Referring to fig. 1, further, wire grids are fixedly installed on the upper and lower top surfaces of the demister housing 1. Through the wire mesh grids on the upper and lower top surfaces of the demister shell 1, the mist can be further removed, and the efficiency of the demister is ensured.

The working principle is as follows: the air inlet of the device is fixed at the outlet position of the air flow by using bolts through six bolt mounting through holes 5, the air flow drives the helical blade 2 to rotate under the pressure and the flow velocity of the air flow, and a plurality of small through holes are dug in the helical blade 2. The helical blade 2 is responsible for the work of defoaming, and when the gas that has the mist rises with certain speed, when the tiny through-hole on the helical blade 2, tiny through-hole makes the air current freely pass through and makes the mist liquid drop blocked and attached to helical blade 2, and helical blade 2 is driven by the speed of air current self and pressure and takes place to rotate, makes the liquid drop that is attached to helical blade throw away the blade end of helical blade 2 by its self centrifugal force. The liquid drop can take away some dust attached to the commentaries on classics leaf when flowing towards the edge of commentaries on classics leaf, and the inner wall of demister shell 1 is equipped with the drain structure of concave-convex form, and the action of sweeping from when the cooperation helical blade rotates sweeps and guides the laying dust attached to the inner wall, and the drain structure of concave-convex form that is equipped with through on the inner wall is along inboard edge flow down. After passing through the wire mesh demister, the gas is substantially free of liquid entrainment or solid particles. Because of the special structure of helical blade self, even if at low-speed air current or because of the bearing leads to helical blade can not take place to rotate because of laying dust rotation is sluggish, have the function of defoaming because of its rotating vane itself, the silk grid is also all installed to the upper and lower top surface of demister shell 1, can use the cost of losing certain defoaming efficiency, use as pure static demister, make the device still can have certain defoaming ability in the low-speed air current, greatly reduced follow-up equipment and taken place the risk of corroding under the undulant condition of acid mist.

Finally, it should be noted that: in the description of the present application, it is to be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (7)

1. The anti-blocking demister applied to the SO2 multistage conversion system comprises a demister shell (1) and is characterized in that a helical blade (2) is rotatably mounted at the central position inside the demister shell (1).

2. The anti-clogging demister applied to SO2 multistage conversion system according to claim 1, characterized in that a rotating vane shaft (3) is fixedly installed at the central shaft position inside the demister shell (1), and the central hole of the helical vane (2) is sleeved on the rotating vane shaft (3).

3. The anti-clogging demister applied to SO2 multi-stage conversion system according to claim 2, characterized in that the top and bottom of the demister shell (1) are fixedly provided with airtight bearings (4), and the top and bottom surfaces of the helical blade (2) are fixedly connected with the inner ring of the airtight bearing (4).

4. The anti-clogging demister applied to SO2 multi-stage conversion system according to claim 1, wherein six bolt mounting through holes (5) are fixedly mounted on the top surface of the demister housing (1) at equal intervals.

5. The anti-clogging demister applied to SO2 multi-stage conversion system according to claim 1, characterized in that the blades of said helical blade (2) are dug with a number of fine through holes.

6. The anti-clogging demister applied to SO2 multi-stage conversion system according to claim 1, characterized in that the inner wall of the demister shell (1) is provided with a concavo-convex liquid guiding structure.

7. The anti-clogging demister applied to SO2 multi-stage conversion system according to claim 1, wherein the upper and lower top surfaces of the demister housing (1) are fixedly provided with wire grids.

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