CN218516286U - Vane type demister - Google Patents

Abstract

The utility model discloses a vane type defroster relates to vane type defroster technical field, including casing, preseparator and separator in advance, separator and preseparator from last vertical distribution down in the casing, establish silk screen aggregator and vane separator in the separator, vane separator includes a plurality of blades of vertical range in the casing, and a plurality of blades form the blading, forms flow channel between per two adjacent blades, its characterized in that, and the blade is established to the single face and is collected the type structure. The utility model has the advantages that the auxiliary blade is arranged on one side of the main blade to form the blade-type demister with a single-side collection structure, the arrangement of the auxiliary blade on one side is reduced on the basis of the prior art to increase the effective area of separation, and the blade-type demister can be suitable for gas with a small amount of solid waste and impurities; and the single-side collection type vane demister has the effects of large effective flow area, large treatment capacity, small resistance loss and wide application range.

Description

Vane type demister

Technical Field

The utility model relates to a vane type defroster technical field, more specifically say, it relates to a vane type defroster.

Background

Wire mesh mist eliminators have been used at the inlet of steam turbine compressors to remove condensate from the steam. Along with the improvement of steam turbine ability in the engineering application, the fatal defect of silk screen defroster is very obvious: 1. the wire diameter of the wire mesh is small, and is approximately 0.5mm (more than 3-5 microns of liquid drops need to be removed, and the liquid drops reach more than 99.8%), and the wire mesh is easy to break during repeated scouring and shaking of large-flow steam, so that mechanical damage is caused to a downstream steam turbine which runs at a high speed. 2. Because the density of the wire mesh is larger, the wire mesh type demister is easy to cause large pressure drop, lose a large amount of kinetic energy of steam and reduce the power generation amount of the steam turbine. 3. Since the wire mesh type demister is likely to cause a large pressure drop due to a relatively large density of the wire mesh, the flow rate of the gas needs to be controlled within a relatively low range in the case of treating the same flow rate, which results in a particularly large-sized apparatus. 4. Due to the principle of separating liquid drops by the wire mesh demister: after the liquid drops are relatively large in aggregation, the liquid drops fall under the action of gravity to separate gas from liquid, but the gas moves upwards and the liquid drops move downwards to generate convection, so that the separated liquid drops are easily entrained by airflow at a certain flow velocity to cause entrainment, and the separation efficiency and the separation effect are reduced.

For example, a chinese patent with patent application number of cn202110348531.X discloses a novel vane type demister, wherein a double-pocket type structure vane is adopted comprising a main vane 11 and a plurality of auxiliary vanes 14, and the two sides of the main vane 11 are equidistantly and alternately attached with the plurality of auxiliary vanes 14. When the fluid flows in the blade group, the direction of the fluid is forcibly changed based on the structure of the blade group, droplet particles in the fluid are condensed and enlarged in continuous collision, the flow speed in the semi-closed chambers at the two sides of the main blade 11 is very slow under the action of gravity, and the droplets flow to the lower condensate tank 6 along the wall surface of the blade 10 after being condensed and collected.

However, in the technical scheme, due to the adoption of the double-side collection type vane mist eliminator, the double-side auxiliary vanes occupy more effective space and can only be suitable for relatively clean gas, and if a small amount of solid waste and particles exist in the gas, the vanes are easily blocked, so that the separation effect is lost.

Based on above-mentioned problem, this novel patent proposes a structure of vane type defroster.

SUMMERY OF THE UTILITY MODEL

To this problem in the actual application, the utility model aims to provide a vane type defroster, concrete scheme as follows:

the utility model provides a vane type defroster, includes casing, preseparator and separator, separator and preseparator are from last to vertical distribution in the casing down, establish silk screen collector and vane separator in the separator, vane separator includes a plurality of blades of vertical range in the casing, and a plurality of blades form the blade group, form flow channel between per two adjacent blades, the blade is established to single face collection type structure.

Further, the type structure blade is collected to single face includes main blade and a plurality of auxiliary blade, and the unilateral equidistance of a main blade is crisscross to be pasted and is equipped with a plurality of auxiliary blade, wherein:

the main blade is mainly formed by sequentially combining a plurality of V-shaped blades into a corrugated plate structure, and each V-shaped blade comprises an inlet part and an outlet part which are in mirror symmetry;

the auxiliary blade mainly comprises a central part and extension parts extending towards two ends of the central part, and the central part and the two extension parts are combined to form an S-shaped structure;

the central part of each auxiliary blade is attached to one side wall of the outlet part.

Further, the central portion is disposed in parallel with the outlet portion.

Further, a space is left between each extension and the outlet part closest to the extension.

Further, the two extending portions of the auxiliary blade are parallel to each other, and each extending portion is parallel to the inlet portion closest to the extending portion.

Further, the both ends of every main blade are equipped with the installation department, the horizontal level in blading both ends is provided with the mounting bracket, installation department perpendicular to mounting bracket sets up, the mounting bracket is used for fixed blading.

Furthermore, the central part and the extending part are connected through a folded angle.

Further, the length of one extension part on each auxiliary blade is larger than that of the other extension part.

Compared with the prior art, the beneficial effects of the utility model are as follows: in the invention, the auxiliary blade is arranged on one side of the main blade to form the blade type demister with a single-side collection type structure, the arrangement of the auxiliary blade on one side is reduced on the basis of the prior art to increase the effective area of separation, and the invention can be suitable for gas with a small amount of solid waste and impurities; and the single-side collection type vane demister has the advantages of large effective flow area, large treatment capacity, small resistance loss and wide application range.

Drawings

Fig. 1 is an overall schematic view of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the middle blade set of the present invention;

FIG. 3 is a schematic view of a single blade of the present invention;

FIG. 4 is a schematic structural view of the main blade of the present invention;

fig. 5 is a schematic structural view of the auxiliary blade of the present invention.

Reference numerals are as follows: 1. a housing; 2. a pre-separator; 3. a separator; 31. a wire mesh collector; 32. a vane separator; 4. a blade; 5. a main blade; 51. an inlet section; 52. an outlet portion; 53. an installation part; 6. an auxiliary blade; 61. a central portion; 62. an extension portion; 7. a blade group; 8. a flow channel; 9. and (7) mounting frames.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in FIG. 1, a vane-type demister comprises a shell 1, a preseparator 2 and a separator 3, wherein the separator 3 and the preseparator 2 are vertically distributed in the shell 1 from top to bottom, and a wire mesh collector 31 and a vane separator 32 are arranged in the separator 3.

When the demister works, fluid firstly enters the preseparator 2 in the shell 1, the preseparator 2 changes the direction of the fluid in the demister, the direction of a main fluid is changed to be downward, larger liquid drops in the fluid fall to the bottom of the demister under the action of gravity, the fluid is subjected to preseparation, other fluids return to enter the screen collector 31 under the action of pressure, the liquid drops are accumulated and grow up under the action of the screen collector 31, when the diameter of the liquid drops in the fluid is larger than a certain value, the liquid drops enter the vane separator 32 and then further grow up, the grown particles are collected by the vane separator 32 and then are left along the wall of the demister, the particles finally flow to the bottom of the demister, demisted gas in the fluid rises upwards and is finally discharged.

Present two side collection type vane type defroster, because two sides all occupy the separation space, in case after the fluid that dopes with solid particle or debris gets into, can cause the condition of blade jam very easily to can't realize effective separation, consequently, this application has proposed a unilateral collection type vane type defroster, specifically:

the vane separator 32 includes a plurality of vanes 4 vertically arranged in the casing 1, the plurality of vanes 4 form a vane group 7, a flow passage 8 is formed between every two adjacent vanes 4, and the vanes 4 are set to a single-side collection type structure.

Thus, one surface of the vane 4 can separate clean fluid, the other surface can separate fluid with solid impurities, and the vane demister with the single-surface collection type structure can separate fluid with solid particles or impurities according to actual use requirements and application scenes.

Specifically, in one possible embodiment, the single-sided collection type structural blade comprises a main blade 5 and a plurality of auxiliary blades 6, and the auxiliary blades 6 are attached to one side of the main blade 5 in an equidistant and staggered mode. Preferably, the auxiliary blade 6 is welded to the main blade 5 by pressure welding, and different chambers and flow passages are formed by the main blade 5 and the auxiliary blade 6, as shown in fig. 2, and fig. 2 shows the blade group 7 in an aligned form.

Referring to fig. 3-5, the main blade 5 is formed by sequentially combining a plurality of V-shaped blades to form a corrugated plate structure, and each V-shaped blade includes an inlet portion 51 and an outlet portion 52 which are mirror images. The auxiliary blade 6 mainly comprises a central part 61 and extension parts 62 extending towards two ends of the central part 61, wherein the central part 61 and the two extension parts 62 are combined to form an S-shaped structure; the central part 61 is connected with the extending part 62 through a folded angle; the central portion 61 of each auxiliary vane 6 is attached to one side wall of the outlet portion 52.

The central portion 61 is disposed in parallel with the outlet portion 52. The two extensions 62 on the auxiliary vane 6 are parallel to each other, and each extension 62 is parallel to the inlet portion 51 closest thereto.

A space is left between each extension 62 and the outlet portion 52 closest thereto.

That is, the structure of the auxiliary vane 6 welded to the outer side wall of each inlet portion 51 of the main vane 5 will be described as an example: one end extension 62 on the auxiliary vane 6 extends to the outlet portion 52 adjacent to the inlet portion 51 and forms an inner semi-closed passage with the outlet portion 52, and the other end extends to the other outlet portion 52 adjacent to the inlet portion 51 and forms a semi-closed passage as with the outlet portion 52. And the length of one of the extensions 62 on each auxiliary vane 6 is greater than the length of the other extension 62.

When fluid flows in the blade group 7, the fluid is forcibly changed in direction based on the structure of the blade group 7, droplet particles in the fluid are condensed and enlarged in continuous collision, the flow speed in the semi-closed chambers at the two sides of the main blade 5 is very low under the action of gravity, and the droplets flow to a lower condensate tank along the wall surface of the blade 4 after being condensed and are collected.

The both ends of every main blade 5 are equipped with installation department 53, and the horizontal level in blading 7 both ends is provided with mounting bracket 9, and installation department 53 perpendicular to mounting bracket 9 sets up, and mounting bracket 9 is used for fixed blading 7. The blade group 7 formed by a plurality of blades 4 can form an integral blade separator 32 by arranging the mounting parts 53 on the mounting frame 9 in sequence, so that the structural stability and the working stability of the whole blade group 7 are ensured.

The utility model discloses a concrete implementation principle does: when the device works, fluid enters the blade type demister, is pre-separated and then is separated, and during separation, the blade separator 32 adopts a single-surface collection type structure, so that a small amount of solid waste and impurities can be treated, the blades 4 cannot be blocked, and the separation effect is ensured.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims (8)

1. The utility model provides a vane type defroster, includes casing (1), preseparator (2) and separator (3), separator (3) and preseparator (2) from last vertical distribution down in casing (1), establish silk screen aggregator (31) and vane separator (32) in separator (3), vane separator (32) are including vertical a plurality of blades (4) of arranging in casing (1), and a plurality of blades (4) form blade group (7), and every two are adjacent form flow channel (8) between blade (4), its characterized in that, blade (4) are established to single face collection type structure.

2. The vane mist eliminator as claimed in claim 1 wherein, the single-sided collection type structure vane comprises a main vane (5) and a plurality of auxiliary vanes (6), and the auxiliary vanes (6) are attached to one side of the main vane (5) in an equidistant and staggered manner, wherein:

the main blade (5) is mainly formed by sequentially combining a plurality of V-shaped blades to form a corrugated plate structure, and each V-shaped blade comprises an inlet part (51) and an outlet part (52) which are in mirror symmetry;

the auxiliary blade (6) mainly comprises a central part (61) and extension parts (62) extending towards two ends of the central part (61), and the central part (61) and the two extension parts (62) are combined to form an S-shaped structure;

the central part (61) of each auxiliary blade (6) is attached to one side wall of the outlet part (52).

3. The vane mist eliminator as set forth in claim 2 wherein the central portion (61) is disposed in parallel with the outlet portion (52).

4. The vane mist eliminator as set forth in claim 3 wherein each of said extensions (62) is spaced from its closest outlet portion (52).

5. The vane mist eliminator as claimed in claim 4 wherein the two extensions (62) on the auxiliary vane (6) are parallel to each other and each extension (62) is parallel to its closest inlet section (51).

6. The vane mist eliminator as claimed in claim 2, wherein each main vane (5) is provided with mounting parts (53) at both ends, the vane assembly (7) is horizontally provided with mounting frames (9) at both ends, the mounting parts (53) are arranged perpendicular to the mounting frames (9), and the mounting frames (9) are used for fixing the vane assembly (7).

7. The vane mist eliminator as set forth in claim 2 wherein the center section (61) and the extension (62) are connected by a dog-ear.

8. The vane mist eliminator as claimed in claim 2 wherein the length of one of the extensions (62) on each of the auxiliary vanes (6) is greater than the length of the other extension (62).

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