CN211069097U

CN211069097U - Defroster blade and defroster

Info

Publication number: CN211069097U
Application number: CN201921820340.3U
Authority: CN
Inventors: 蒋丛进
Original assignee: Shenhua Guohua Beijing Electric Power Research Institute Co Ltd; Guohua Power Branch of China Shenhua Energy Co Ltd
Current assignee: Shenhua Guohua Beijing Electric Power Research Institute Co Ltd; Guohua Power Branch of China Shenhua Energy Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-24
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a demister blade, it includes the blade body, and the blade body is the bending structure spare, is provided with first recess on the blade body, and the both ends of first recess extend to two terminal surfaces on the width direction of blade body respectively. The utility model discloses a defroster blade is provided with first recess on the blade body, and fog is after condensing into liquid on the blade body, and liquid can flow in first recess under the effect of gravity to along the edge of first recess flow to the blade body, the edge of following the blade body at last again flows down, only need like this at the border position of blade body set up collection device can, make the liquid after the fog condenses more convenient when collecting. The utility model also discloses another kind of defroster blade and a defroster.

Description

Defroster blade and defroster

Technical Field

The utility model relates to a defroster technical field especially relates to a defroster blade and defroster.

Background

In the pollutant control technology of the thermal power plant, a desulfurization absorption tower is generally adopted to remove sulfur dioxide in flue gas. Flue gas from the tail of the boiler enters a desulfurization absorption tower, pollutants such as sulfur dioxide and the like are removed by spraying limestone slurry, meanwhile, liquid drops can be carried by high-speed moving gas mixed by the flue gas and the slurry, the liquid drops need to be removed before the flue gas is discharged into the atmosphere, the liquid drops are removed by a demister, and the flue gas is subjected to secondary washing.

The desulfurizing absorption tower is provided with a demister on the top, and the demister is divided into plate-type demisters, ridge-type demisters and other demisters of different forms. The demister body is formed by assembling demister blades, clamps, brackets and the like according to a certain structure. The device has the main functions of trapping liquid drops and a small amount of dust in the flue gas, reducing the water carrying of the flue gas and reducing the emission of the smoke dust.

The demister blades are important elements forming a demister, the performance quality of the demister blades directly influences the emission concentration of pollutants, the demisting principle is that wet flue gas flow flowing between the blades is forced to pass through channels between the blades in a Z shape, liquid drops cannot move along the streamline shape of the gas flow and impact on the outer surfaces of the blades and drop after condensation, the demister blades are usually made of high polymer materials (such as polypropylene, FRP and the like) or stainless steel (such as 316L) and the like, the demister blades are various in types, can be divided into streamline shapes and broken line shapes according to geometric shapes, and can be divided into 2-channel blades and 3-channel blades according to structural characteristics.

The current defroster blade is letting the fog condense the back, and the liquid after condensing can follow the surface of blade and fall back irregularly, and this just leads to liquid comparatively troublesome when retrieving.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a defroster blade and defroster to solve the comparatively trouble problem of current defroster blade to the recovery of the liquid after condensing.

The embodiment of the utility model is realized like this:

based on foretell purpose, the embodiment of the utility model discloses a demister blade, including the blade body, the blade body is the bending structure spare, be provided with first recess on the blade body, the both ends of first recess extend to respectively two terminal surfaces on the width direction of blade body.

Based on foretell purpose, the embodiment of the utility model also discloses a demister blade, including the blade body, the blade body is curved structure, be provided with first lug and second lug on the blade body, first lug with the second lug is followed the length direction interval of blade body sets up, first lug with form first recess between the second lug, the both ends of first lug extend to respectively two terminal surfaces on the width direction of blade body, at least one end of second lug extends to the width direction's of blade body terminal surface.

Based on foretell purpose, the embodiment of the utility model also discloses a defroster, include as above the defroster blade.

The utility model discloses a technical scheme can reach following beneficial effect:

the utility model discloses a demister blade is provided with the recess on the blade body, and after fog condenses into liquid on the blade body, liquid can flow in the first recess under the effect of gravity, and flow to the edge of blade body along the first recess, flow down along the edge of blade body at last again, so only need to set up the collection device in the marginal position of blade body, make the liquid after the fog condenses more convenient when collecting; simultaneously, the setting of first recess can be under the condition that does not change the volume of blade main part effectual increase blade main part's surface area, make fog more abundant with the contact of blade main part to promote defogging efficiency.

Drawings

The accompanying drawings, which are described herein, serve to disclose a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are used to explain the invention and not to constitute an undue limitation on the invention. In the drawings:

FIG. 1 is a schematic view of a first demister blade disclosed in an embodiment of the present invention;

FIG. 2 is a schematic view of a second demister blade disclosed in an embodiment of the present invention;

FIG. 3 is a schematic view of a third demister blade disclosed in an embodiment of the present invention;

FIG. 4 is a schematic view of a fourth demister blade disclosed in an embodiment of the present invention;

FIG. 5 is a schematic view of a fifth demister blade disclosed in an embodiment of the present invention;

FIG. 6 is a schematic view of a sixth demister blade disclosed in an embodiment of the present invention;

fig. 7 is a schematic view of a seventh demister blade disclosed in the embodiment of the present invention;

fig. 8 is a schematic view of an eighth demister blade disclosed in the embodiment of the present invention.

Description of reference numerals: 100-a blade body; 110 — a first groove; 120-a second groove; 130-a first bump; 140-second bump.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the present invention discloses a demister blade, which includes a blade body 100, the blade body 100 may be configured as a curved structural member, for example, "S" or wave shape is possible, and in other embodiments, the blade body 100 may be configured as a bent shape such as "M" or "W".

The blade body 100 may be provided with a first groove 110, the first groove 110 may extend along the width direction of the blade body 100, and two ends of the first groove 110 respectively extend to two end faces of the blade body 100 in the width direction, so that the first groove 110 is in an open state, and liquid can flow out of the first groove 110 along the two end faces of the first groove 110.

When the demister blade provided by the embodiment is used, the demister blade is generally vertically placed, that is, the length direction of the blade body 100 is arranged along the vertical direction, the width direction of the blade body 100 is arranged along the horizontal direction at the moment, and the first groove 110 is in a substantially horizontal state. After the mist is condensed into liquid on the blade body 100, the liquid flows into the first groove 110 under the action of gravity, flows to the edge of the blade body 100 along the first groove 110, and finally flows down along the edge of the blade body 100, so that only a collecting device is required to be arranged at the edge of the blade body 100, and the condensed liquid of the mist is more convenient to collect; meanwhile, the arrangement of the first groove 110 can effectively increase the surface area of the blade body under the condition that the volume of the blade body is not changed, so that the fog can be more fully contacted with the blade body, and the demisting efficiency is improved.

One or more first grooves 110 may be provided, and when one first groove 110 is provided, the first groove 110 should be provided at a position close to the bottom of the vane body 100, so that the liquid flowing down from the upper portion can be gathered in the first groove 110. When the first groove 110 is provided in a plurality, the first grooves 110 may be spaced apart along the length direction of the blade body 100.

In order to further improve the convenience of liquid collection, the first groove 110 may be disposed obliquely, that is, the first groove 110 is in a substantially linear state, and the extending direction of the first groove 110 is oblique to the width direction of the blade body 100. At this time, after the liquid on the vane body 100 flows into the first groove 110, the liquid flows towards the same end of the first groove 110 and converges to the same side of the vane body 100, and at this time, the collection device is only needed to be arranged on one side edge of the vane body 100 to collect all the liquid in a concentrated manner, so that the convenience of liquid collection is improved.

In this embodiment, the included angle between the width directions of the first groove 110 and the vane body 100 can be any angle between 10 degrees and 45 degrees, so that it can be ensured that the liquid flowing into the first groove 110 can flow along the same direction of the first groove 110, and meanwhile, it can be ensured that the length of the vane body 100 is limited, the two ends of the first groove 110 can extend to the two end faces of the vane body 100 in the width direction, and the length of the vane body 100 does not need to be increased, so that the vane body 100 can be used more, and can be suitable for more demisters.

In some embodiments of the present embodiment, the recess direction of the first groove 110 may be inclined with respect to the surface of the blade body 100, so that the notch of the first groove 110 is higher than the groove bottom of the first groove 110 when the blade body 100 is vertically placed. This prevents liquid from overflowing the lower side wall of the first groove 110 when there is more liquid in the first groove 110, so that the liquid condensed on the blade body 100 can be collected on the same side of the blade body 100 along the first groove 110.

Alternatively, only the lower side wall of the first groove 110 is inclined, so as to ensure that the bottom of the first groove 110 is lower than the opening of the first groove 110, thereby preventing the liquid from overflowing the lower side wall of the first groove 110.

Referring to fig. 2, in some embodiments of the present embodiment, a second groove 120 may be further disposed on the blade body 100, the second groove 120 and the first groove 110 are located on the same side of the blade body 100, and at least one end of the second groove 120 extends to an end surface of the blade body 100 in the width direction. The provision of the second groove 120 may increase the surface area of the vane body 100, thereby increasing the efficiency of mist condensation.

At least two second grooves 120 may be disposed on the blade body 100 provided in this embodiment, the at least two second grooves 120 are disposed at intervals along the length direction of the blade body 100, and the at least two second grooves 120 are both located on the same side of the first groove 110. The plurality of second grooves 120 may further increase the condensation rate of the mist.

Referring to fig. 2 and 3, when only one end of each second groove 120 extends to an end face of the blade body 100 in the width direction, the port of each second groove 120 may extend to any end face of the blade body 100 in the width direction, and the ports of adjacent second grooves 120 may extend to both end faces of the blade body 100 in the width direction, so that liquids condensed at different positions on the blade body 100 may rapidly flow into the first groove 110 and the second groove 120. When liquid slides on blade body 100, under the effect of gravity, its sliding speed can be faster and faster, and liquid gets into first recess 110 or second recess 120 fast and can avoid its sliding speed on blade body 100 too fast to avoid the scope of liquid roll-off blade body 100, and then realize the purpose of being convenient for collect. Of course, it is also possible that the ports of all the second grooves 120 extend to the end faces on the same side in the width direction of the blade body 100, so that the liquid can be more rapidly concentrated on the same side of the blade body 100.

When both ends of the second groove 120 also extend to both end surfaces in the width direction of the blade body 100, respectively, the extending direction of the second groove 120 may be inclined from the width direction of the blade body 100 by an angle between 10 degrees and 45 degrees. The second grooves 120 may be parallel to each other or may be staggered.

The concave direction of the second groove 120 may also be inclined to enable the liquid to be rapidly concentrated on the same side of the blade body 100, and in some cases, the shape of the second groove 120 may be the same as that of the first groove 110.

In some embodiments of the present embodiment, the first groove 110 may be disposed at a peak of the blade body 100, or the first groove 110 may be disposed at a peak of the blade body 100, because when the liquid slides to a peak of the blade body 100, if the liquid speed is fast, the liquid may be easily separated from the blade body 100, and the first groove 110 may be disposed at the peak of the blade body 100, so that the liquid may directly flow into the first groove 110, thereby preventing the liquid from being separated from the blade body 100.

In some embodiments of the present embodiment, the width of the first groove 110 may be set to 5 mm to 10 mm, and the recess depth of the first groove 110 may be set to 1 mm to 2 mm, so that the surface area of the vane body 100 may be increased without damaging the structural strength of the vane body 100, thereby improving the condensation efficiency of the mist, and at the same time, facilitating the collection of the liquid.

Referring to fig. 4, another demister blade is also used in the present embodiment, which includes a blade body 100, and the blade body 100 may be configured as a curved structural member, such as an "S" shape or a wave shape, and in other embodiments, the blade body 100 may be configured as an "M" shape or a "W" shape, or other bent shapes.

The blade body 100 may be provided with a first protrusion 130 and a second protrusion 140, the first protrusion 130 and the second protrusion 140 are both located on the same side of the blade body 100, the first protrusion 130 and the second protrusion 140 are arranged at intervals along the length direction of the blade body 100, a first groove 110 is formed between the first protrusion 130 and the second protrusion 140, two ends of the first protrusion 130 extend to two end surfaces of the blade body 100 in the width direction, and at least one end of the second protrusion 140 extends to an end surface of the blade body 100 in the width direction.

When the demister blade provided by the embodiment is used, the demister blade is generally vertically placed, that is, the length direction of the blade body 100 is arranged along the vertical direction, at this time, the width direction of the blade body 100 is arranged along the horizontal direction, and the first lug 130 and the second lug 140 are in a substantially horizontal state, so that the first groove 110 is in a substantially horizontal state. After the mist is condensed into liquid on the blade body 100, the liquid flows into the first groove 110 under the action of gravity, flows to the edge of the blade body 100 along the first groove 110, and finally flows down along the edge of the blade body 100, so that only a collecting device is required to be arranged at the edge of the blade body 100, and the condensed liquid of the mist is more convenient to collect; meanwhile, the arrangement of the first groove 110 can effectively increase the surface area of the blade body under the condition that the volume of the blade body is not changed, so that the fog can be more fully contacted with the blade body, and the demisting efficiency is improved.

One or more first protrusions 130 may be provided, and when one first protrusion 130 is provided, the first protrusion 130 should be provided at a position close to the bottom of the blade body 100, so that the liquid flowing down from the upper portion can be gathered in the first groove 110 formed by the first protrusion 130 and the second protrusion 140. When the first protrusions 130 are disposed in plural, the plural first protrusions 130 may be disposed at intervals along the length direction of the blade body 100, and the first grooves 110 are also formed between the adjacent first protrusions 130.

To further enhance the convenience of liquid collection, the first protrusion 130 may be inclined with respect to the width direction of the blade body 100 toward the side wall of the second protrusion 140. At this time, after the liquid on the vane body 100 flows into the first groove 110, the liquid flows towards the same end of the first protrusion 130 along the inclined surface of the first protrusion 130 and converges to the same side of the vane body 100, and at this time, all the liquid can be collected in a concentrated manner only by arranging a collecting device on one side edge of the vane body 100, so that the convenience of liquid collection is improved.

In this embodiment, an included angle between the inclined plane of the first protrusion 130 and the width direction of the vane body 100 may be any angle between 10 degrees and 45 degrees, so that it is ensured that the liquid flowing into the first groove 110 can flow along the same direction of the first protrusion 130, and meanwhile, it is ensured that the two ends of the first protrusion 130 can extend to the two end faces of the vane body 100 in the width direction within the limited length range of the vane body 100, without increasing the length of the vane body 100, so that the vane body 100 is more suitable for more demisters.

In some embodiments of the present embodiment, the first protrusion 130 may be inclined with the surface of the blade body 100 toward the sidewall of the second protrusion 140, so that the notch of the first groove 110 is higher than the groove bottom of the first groove 110 when the blade body 100 is vertically placed. This prevents liquid from overflowing the side wall of the first protrusion 130 when there is more liquid between the first protrusion 130 and the second protrusion 140, so that the liquid condensed on the blade body 100 can be collected on the same side of the blade body 100 along the first groove 110.

In the present embodiment, a sidewall of the second bump 140 facing the first bump 130 may be inclined from the surface of the blade body 100, and the sidewall is parallel to a sidewall of the first bump 130 facing the second bump 140.

In some embodiments of the present embodiment, at least two second protrusions 140 may be disposed on the blade body 100, the two second protrusions 140 are both located on the same side of the first protrusion 130, the second groove 120 is formed between two adjacent second protrusions 140, and the two second protrusions 140 may further increase the surface area of the blade body 100, so as to improve the condensation efficiency of the mist.

Referring to fig. 4 and 5, when only one end of the second protrusion 140 extends to the end surface of the blade body 100 in the width direction, the end of the second protrusion 140 may extend to any end surface of the blade body 100 in the width direction, and the end of the adjacent second protrusion 140 may extend to both end surfaces of the blade body 100 in the width direction, so that the liquid condensed at different positions on the blade body 100 may rapidly flow into the first groove 110 and the second protrusion 140. When liquid slides on blade body 100, under the effect of gravity, its sliding speed can be faster and faster, and liquid gets into first recess 110 or second recess 120 fast and can avoid its sliding speed on blade body 100 too fast to avoid the scope of liquid roll-off blade body 100, and then realize the purpose of being convenient for collect. Of course, it is also possible that the ends of all the second protrusions 140 extend to the end faces of the same side in the width direction of the blade body 100, so that the liquid can be more quickly concentrated on the same side of the blade body 100.

Referring to fig. 4, 5, 7 and 8, the second bump provided in this embodiment may have a bar shape or a shape of "L".

Referring to fig. 6, when both ends of the second protrusion 140 extend to both ends of the blade body 100 in the width direction, the sidewall of the second protrusion 140 away from the first protrusion 130 is also inclined to the surface of the blade body 100, and the sidewall is parallel to the sidewall of the first protrusion 130 facing the second protrusion 140, so that the liquid can be rapidly concentrated on the same side of the blade body 100.

In some embodiments of the present embodiment, the first protrusion 130 and the second protrusion 140 may be respectively disposed on two sides of the peak of the blade body 100, so that the peak of the blade body 100 is exposed, and the first groove 110 formed by the first protrusion 130 and the second protrusion 140 is located at the peak of the blade body 100. When the liquid slides to the wave crest of the vane body 100, if the liquid speed is high, the liquid is easy to separate from the vane body 100, and the first groove 110 is located at the wave crest of the vane body 100, so that the liquid can directly flow into the first groove 110, and the liquid is prevented from separating from the vane body 100.

In some embodiments of the present embodiment, a distance between the first bump 130 and the second bump 140 may be set to be 5 mm to 10 mm, a protrusion height of the first bump 130 may be set to be 1 mm to 2 mm, a protrusion height of the second bump 140 may be set to be 1 mm to 2 mm, and a height of the second bump 140 that is less than or equal to the height of the first bump 130 may be all possible, so that a surface area of the blade body 100 may be increased while a structural strength of the blade body 100 is increased, thereby increasing condensation efficiency of mist and facilitating collection of liquid.

The embodiment also provides a demister which comprises the demister blade. The demister provided by the embodiment may include a plurality of vane bodies 100, the plurality of vane bodies 100 are arranged in parallel, and the distance between the vane bodies 100 is less than or equal to the thickness of the vane bodies 100. The thickness of the blade body 100 described herein is the height difference between the peaks and valleys of the blade body 100.

The demister provided by the embodiment utilizes the demister blades, and liquid can be concentrated at the edge of the blade body 100, so that the liquid can be collected more conveniently and rapidly.

The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The demister blade is characterized by comprising a blade body (100), wherein the blade body (100) is a bent structural member, a first groove (110) is arranged on the blade body (100), and two ends of the first groove (110) extend to two end faces of the blade body (100) in the width direction respectively.

2. Demister blade according to claim 1, wherein the first groove (110) extends in a straight line, the direction of extension of the first groove (110) being inclined to the width direction of the blade body (100).

3. Demister blade according to claim 2, wherein the angle between the direction of extension of the first groove (110) and the width direction of the blade body (100) is 10-45 degrees.

4. A demister blade as in claim 1, wherein the blade body (100) is further provided with a second groove (120), at least one end of the second groove (120) extending to the width-wise end surface of the blade body (100).

5. A demister blade according to claim 4, wherein the blade body (100) is provided with at least two said second grooves (120), at least two said second grooves (120) being spaced apart along the length of the blade body (100), and at least two said second grooves (120) being located on the same side of the first groove (110).

6. The demister blade is characterized by comprising a blade body (100), wherein the blade body (100) is a bent structural member, a first lug (130) and a second lug (140) are arranged on the blade body (100), the first lug (130) and the second lug (140) are arranged at intervals along the length direction of the blade body (100), a first groove (110) is formed between the first lug (130) and the second lug (140), two ends of the first lug (130) respectively extend to two end faces in the width direction of the blade body (100), and at least one end of the second lug (140) extends to the end face in the width direction of the blade body (100).

7. Demister blade according to claim 6, wherein the first tab (130) is inclined to the width direction of the blade body (100) towards the side wall of the second tab (140).

8. A demister blade according to claim 7, wherein the side wall of the first projection (130) facing the second projection (140) forms an angle of 10-45 degrees with the width direction of the blade body (100).

9. The demister blade of claim 6, wherein at least two second projections (140) are provided on the blade body (100), at least two second projections (140) are provided at intervals along the length direction of the blade body (100), and at least two second projections (140) are both located on the same side of the first projection (130), and a second groove (120) is formed between two adjacent second projections (140).

10. A demister comprising demister blades according to any one of claims 1 to 9.