CN211399744U - Anti-vibration optimization device for heating surface of boiler - Google Patents

Abstract

The utility model discloses a boiler heating surface antivibration optimizing apparatus, at the economizer, the first-level re-heater, add a plurality of rows of antivibration devices between second grade over heater access & exit tube panels, the antivibration device main equipment is the baffle, the baffle is formed by the butt joint equipment of a plurality of L shape antivibration veneers, wherein the L shape antivibration veneer array direction of odd number is unanimous, the L shape antivibration veneer array direction of even number is unanimous, the L shape antivibration veneer of odd number is just opposite with the L shape antivibration veneer array order of even number, namely the long outside of the short broken surface of odd number L shape antivibration veneer is butted mutually with the long outside of the long broken surface of even number L shape antivibration veneer, make the whole row of baffle present square wave; two square supporting and hanging holes which are uniform in position and have a certain size are arranged in the middle of one side, close to the short side, of the long folding surface of each L-shaped anti-vibration veneer, all the square supporting and hanging holes are arranged on the same side, and the supporting and hanging square steel penetrates through the square supporting and hanging holes and is fixed on the tube panel.

Description

Anti-vibration optimization device for heating surface of boiler

Technical Field

The utility model relates to a device is optimized in antivibration of boiler heating surface belongs to the shockproof technical device field of boiler.

Background

At present, when the load of a unit of a once-through boiler is more than a certain wattage, a flue guard plate vibrates near a flue at the tail part of the boiler and a horizontal flue expansion joint to drive the flue to vibrate simultaneously and emit high-frequency sound similar to the surge of a fan along with the vibration, and the higher the load is, the larger the vibration amplitude is; along with the increasing of the auxiliary coal-coal blending combustion force of a power plant, the smoke amount under the same load is increased continuously, the smoke flow velocity is increased relatively, the vibration phenomenon of a boiler is also intensified continuously, the leakage accident caused by fatigue damage of a boiler water wall is caused for many times, the boiler generates various kinds of leakage for 68 times within 3 years according to statistics, wherein 57 times are leakage of the water wall, the analysis shows that most of the leakage is caused by the vibration of the boiler, and the vibration problem seriously influences the safe operation of the boiler.

Disclosure of Invention

In order to solve the defects and shortcomings, the utility model provides a boiler heating surface vibration-proof optimization device.

The utility model discloses a solve the technical scheme that technical problem adopted as follows:

the utility model discloses a boiler heating surface antivibration optimizing apparatus, at the economizer, the first-level re-heater, add a plurality of rows of antivibration devices between second grade over heater access & exit tube panels, the antivibration device main equipment is the baffle, the baffle is formed by the butt joint equipment of a plurality of L shape antivibration veneers, wherein the L shape antivibration veneer array direction of odd number is unanimous, the L shape antivibration veneer array direction of even number is unanimous, the L shape antivibration veneer of odd number is just opposite with the L shape antivibration veneer array order of even number, namely the long outside of the short broken surface of odd number L shape antivibration veneer is butted mutually with the long outside of the long broken surface of even number L shape antivibration veneer, make the whole row of baffle present square wave; two square supporting and hanging holes which are uniform in position and have a certain size are arranged in the middle of one side, close to the short side, of the long folding surface of each L-shaped anti-vibration veneer, all the square supporting and hanging holes are arranged on the same side, and the supporting and hanging square steel penetrates through the square supporting and hanging holes and is fixed on the tube panel.

As a preferred technical proposal of the utility model, the baffle plates are arranged in the front-back direction outside the furnace, and the length of the water-cooled wall is equal to the length of the water-cooled wall.

The utility model discloses the beneficial effect who reaches is: 1. through the improvement, the heating surface of the boiler thoroughly gets rid of fatigue damage caused by vibration, so that frequent leakage accidents are caused, the maximum potential safety hazard of the boiler is eliminated, and the safe, stable and continuous operation of a unit is ensured; 2. the boiler plant is quiet, so that the operating patrol personnel are free from the harm of noise and the fear caused by tail flue and ladder walking vibration.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1. an L-shaped anti-vibration veneer; 2. supporting and hanging square steel; 3. square supporting and hanging holes; 4. and (4) tube panels.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "inner", "outer", 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1, 4 rows of anti-vibration devices are added among an economizer, a primary reheater, and a secondary superheater inlet and outlet tube panel, the anti-vibration devices are mainly made of partition plates, and the partition plates are formed by butt-joint and assembly of 6L-shaped anti-vibration single plates, wherein the arrangement directions of odd-numbered L-shaped anti-vibration single plates are consistent, the arrangement directions of even-numbered L-shaped anti-vibration single plates are consistent, and the arrangement sequence of the odd-numbered L-shaped anti-vibration single plates is exactly opposite to that of the even-numbered L-shaped anti-vibration single plates, that is, the long outer edges of the short folding surfaces of the odd-numbered L-shaped anti-vibration single plates are butt-jointed with the long outer edges of the long folding; two square supporting and hanging holes with the positions being even and 32mm multiplied by 32mm are arranged in the middle of one side, close to the short side, of the long folded surface of each L-shaped anti-vibration veneer, all the square supporting and hanging holes are arranged on the same side, 12 square steel plates with the diameters being 30mm multiplied by 200mm penetrate through the square supporting and hanging holes and are fixed on the tube panel, the partition plates are arranged in the front-back direction outside the furnace, and the length of the partition plates from the front water wall to the rear water wall is equal.

Finally, it should be noted that: although the present invention 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 invention should be included in the protection scope of the present invention.

Claims (2)

1. A vibration-proof optimization device for a boiler heating surface is characterized in that a plurality of rows of vibration-proof devices are added among tube panels at an inlet and an outlet of an economizer, a primary reheater and a secondary superheater, the vibration-proof devices are mainly made of partition plates formed by butt-joint and assembly of a plurality of L-shaped vibration-proof single plates, the arrangement directions of odd-numbered L-shaped vibration-proof single plates are consistent, the arrangement directions of even-numbered L-shaped vibration-proof single plates are consistent, the arrangement sequence of the odd-numbered L-shaped vibration-proof single plates is just opposite to that of the even-numbered L-shaped vibration-proof single plates, namely, the long outer edges of the short folding surfaces of the odd-numbered L-shaped vibration-proof single plates are butt-jointed with the long outer edges of the long folding surfaces of; the middle position of the long folding surface of each L-shaped anti-vibration veneer, which is close to one side of the short edge, is provided with two square supporting and hanging holes which are uniform in position and have a certain size, all the square supporting and hanging holes are arranged on the same side, and the supporting and hanging square steel with a certain size penetrates through the square supporting and hanging holes and is fixed on the tube panel.

2. The vibration-proof optimization device for the heating surface of the boiler as claimed in claim 1, wherein the partition plates are arranged in the front-rear direction outside the boiler and are equidistant from the front and rear water-cooled walls.

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