阅读说明：本技术 一种用于脱硫塔均流增效装置的新型锁固装置 (Novel locking device for flow equalization and efficiency improvement device of desulfurizing tower ) 是由 徐轶伦 刘文榉 唐飞翔 刘寒梅 钟莎 姜雅洲 冯立波 李建惠 沈波 于 2020-06-10 设计创作，主要内容包括：本发明涉及用于脱硫塔均流增效装置的新型锁固装置,包括中央区域均流增效板的锁固装置和周边区域均流增效板的锁固装置；中央区域均流增效板的锁固装置包括压紧构件和橡胶垫片,支撑钢梁顶部设置有压紧构件,压紧构件由方管和加长衬板拼焊而成,加长衬板焊接于方管两侧,方管通过紧固螺栓与均流增效板外侧的抱箍连接固定,均流增效板下表面和方管上表面均设置有橡胶垫片；周边区域均流增效板的锁固装置包括加长压板和双螺栓。本发明的有益效果是：本发明设置了方管、长衬板,对吸收塔均流增效板固定安装方式进行了改进,极大增加了均流增效板顶部的压实面积和紧固强度,实现均流增效板及其附件间紧固连接,现场安装方便。(The invention relates to a novel locking device for a flow equalizing synergistic device of a desulfurizing tower, which comprises a locking device for a flow equalizing synergistic plate in a central area and a locking device for a flow equalizing synergistic plate in a peripheral area; the locking device of the central area flow-equalizing synergistic plate comprises a pressing component and a rubber gasket, the pressing component is arranged at the top of the supporting steel beam and is formed by welding a square tube and lengthened lining plates in a splicing manner, the lengthened lining plates are welded on two sides of the square tube, the square tube is fixedly connected with a hoop outside the flow-equalizing synergistic plate through a fastening bolt, and the rubber gasket is arranged on the lower surface of the flow-equalizing synergistic plate and the upper surface of the square tube; the locking device of the flow equalizing synergistic plate in the peripheral area comprises a lengthened pressure plate and double bolts. The invention has the beneficial effects that: the square tube and the long lining plate are arranged, the fixed installation mode of the flow equalizing synergistic plate of the absorption tower is improved, the compaction area and the fastening strength of the top of the flow equalizing synergistic plate are greatly increased, the flow equalizing synergistic plate and accessories thereof are fastened and connected, and the field installation is convenient.)

1. The utility model provides a novel locking device that is used for desulfurizing tower to flow equalize increase device which characterized in that: the locking device comprises a locking device of a central area flow equalizing synergistic plate and a locking device of a peripheral area flow equalizing synergistic plate; the locking device of the central area flow-equalizing synergistic plate comprises a pressing component and a rubber gasket (4), the pressing component is arranged at the top of a supporting steel beam (7), the pressing component is formed by welding a square pipe (1) and a lengthened lining plate (2) in a splicing manner, the lengthened lining plate (2) is welded on two sides of the square pipe (1), the square pipe (1) is fixedly connected with a hoop (3) on the outer side of the flow-equalizing synergistic plate (6) through a fastening bolt (5), and the rubber gasket (4) is arranged on the lower surface of the flow-equalizing synergistic plate (6) and the upper surface of the square pipe (1); the locking device of the current-sharing synergistic plate in the peripheral area comprises a lengthened pressing plate (9) and double bolts (8), wherein the lengthened pressing plate (9) is arranged on the upper surface of the current-sharing synergistic plate (6), and the lengthened pressing plate (9), the current-sharing synergistic plate (6) and the lower fixing clamp plate are fixedly connected through the double bolts (8).

2. The locking device for the flow equalizing and efficiency improving device of the desulfurizing tower of claim 1, wherein: the fastening bolt (5) is fitted with two nuts.

3. The locking device for the flow equalizing and efficiency improving device of the desulfurizing tower of claim 1, wherein: the double bolt (8) is fitted with two nuts.

Technical Field

The invention belongs to the technical field of flue gas desulfurization, and particularly relates to a novel locking device for a flow equalizing and efficiency improving device of a desulfurizing tower.

Background

The absorption tower flow equalizing synergistic plate is of a modular porous plate structure, is formed by bending an alloy steel plate, is arranged between a flue gas inlet of the absorption tower and the first spraying layer, and plays roles of uniformly distributing flue gas and strengthening mass transfer. The locking of the current-sharing synergistic device is also divided into two types, namely central area locking and peripheral area locking according to different installation positions. In the conventional technology, the original current-sharing synergistic plate in the central area is locked and fixed by two points of anchor ears (as shown in figure 1-a), and the current-sharing synergistic plate in the peripheral area is clamped and fixed by a single bolt and a steel plate (as shown in figure 1-b). The fixing mode has the problems of narrow clamping surface, uneven stress of the clamping surface, insufficient rigidity of a locking point area, easiness in loosening and the like. Because there is actual deviation in equipment fixing location, the peripheral component splint of absorption tower do not arrive the position and lead to the centre gripping area not enough, and splint will not play the fastening effect and become invalid, are dashed to overturn by the flue gas very easily.

Especially, after the ultra-low emission transformation, the spraying amount of the slurry in the absorption tower is increased, the aperture ratio of the flow equalizing synergistic plate is reduced, the working load of the flow equalizing synergistic plate is correspondingly increased, and the smoke gas circulation is causedThe vibration aggravation of resistance increase, the synergistic board that flow equalizes, the mounting is become flexible easily even became invalid, takes place after long-term operation that the locking point takes off and takes off, the staple bolt fracture, rigidity reinforcement muscle and module drop etc. the condition leads to the fact flue gas short circuit in the desulfurizing tower, finally arouses desulfurization system SO₂The emission concentration exceeds the standard. In the actual engineering, equipment faults of anchor ear breakage and local synergistic plate falling occur, so that the desulfurization efficiency is reduced, the stability of a desulfurization system is damaged, and the boiler is stopped in severe cases. After the current-sharing synergistic plate module is damaged, the current-sharing synergistic plate module needs to be replaced locally or integrally, the modification cost is high, and the modification period is long.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a novel locking device for a flow equalizing and efficiency improving device of a desulfurizing tower.

The novel locking device for the flow equalizing synergistic device of the desulfurizing tower comprises a locking device for a flow equalizing synergistic plate in a central area and a locking device for a flow equalizing synergistic plate in a peripheral area; the locking device of the central area flow-equalizing synergistic plate comprises a pressing component and a rubber gasket, the pressing component is arranged at the top of the supporting steel beam and is formed by welding a square tube and lengthened lining plates in a splicing manner, the lengthened lining plates are welded on two sides of the square tube, the square tube is fixedly connected with a hoop outside the flow-equalizing synergistic plate through a fastening bolt, and the rubber gasket is arranged on the lower surface of the flow-equalizing synergistic plate and the upper surface of the square tube; the locking device of the surrounding area flow equalizing synergistic plate comprises a lengthened pressing plate and double bolts, wherein the lengthened pressing plate is arranged on the upper surface of the flow equalizing synergistic plate, and the lengthened pressing plate, the flow equalizing synergistic plate and the lower fixing clamp plate are fixedly connected through the double bolts.

Preferably, the method comprises the following steps: the fastening bolt is fitted with two nuts.

Preferably, the method comprises the following steps: the double bolt is fitted with two nuts.

The invention has the beneficial effects that:

1. the square tube and the long liner plate are arranged, the fixed installation mode of the flow equalizing synergistic plate of the absorption tower is improved, the compaction area and the fastening strength of the top of the flow equalizing synergistic plate are greatly increased, the flow equalizing synergistic plate and accessories thereof are fastened and connected, the field installation is convenient, and the influence on the safe operation of components can be minimized.

2. The invention is provided with the double bolts and the lengthened pressing plate, increases the compaction and clamping area by improving the clamping and fixing structure of the flow equalizing synergistic plate, improves the fastening strength of the clamping device, ensures that the flow equalizing synergistic plate can stably run for a long time, and effectively ensures the desulfurization efficiency.

Drawings

FIG. 1-a is a schematic view of a conventional fixing method of a central flow equalizing synergistic plate;

FIG. 1-b is a schematic view of a conventional peripheral flow equalizing synergistic plate;

FIG. 2 is a front view of a fixing structure of a current-equalizing synergistic plate in a central area;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a top view of FIG. 1;

fig. 5 is a schematic view of a fixing structure of the current-equalizing synergistic plate in the peripheral area.

Description of reference numerals: square pipe 1, long welt 2, staple bolt 3, rubber gasket 4, fastening bolt 5, increase board 6, support girder steel 7, twin bolts 8, add long clamp plate 9, tower wall shrouding 10, double-deck rubber 11, bolt and nut 12, packing ring 13, square gasket 14, tray fixed splint 15, interval keep steel pipe 16 flow equalizes.

Detailed Description

The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

The novel locking device for the flow equalizing and efficiency improving device of the desulfurizing tower comprises a locking device for a flow equalizing and efficiency improving plate in a central area and a locking device for a flow equalizing and efficiency improving plate in a peripheral area.

As shown in fig. 2-4, an enhanced locking device is developed for the current equalizing synergistic plate in the central area, and the locking device has high rigidity of components and high locking reliability. Set up at 7 tops of supporting girder steel promptly and compress tightly fixing device, the compressing component is formed by square pipe 1 and 2 tailor-welds of extension welt, the bottom surface is level and smooth and possesses certain rigidity, extension welt 2 welds in 1 both sides in square pipe, square pipe 1 is connected the back through fastening bolt 5 and the staple bolt 3 in the former increase board outside that flow equalizes and is realized compressing tightly the lock solid, the compaction area and the fastening strength at increase board top of flow equalizing have greatly been increased, 6 lower surfaces of increase board and the 1 upper surface in square pipe that flow equalize simultaneously all set up the shock attenuation of rubber packing 4.

As shown in fig. 5, for the current-equalizing synergistic plate in the peripheral area, the original single-bolt locking technology is optimized to be a double-bolt limiting locking technology, and the problems of vibration deflection and loosening existing in single-bolt locking are solved by adopting a double-shaft limiting technology. The lengthened pressure plate 9 is arranged on the upper surface of the flow equalizing synergistic plate 6, and the lengthened pressure plate 9 is used for replacing a clamping plate of a peripheral component of the original flow equalizing synergistic plate, so that the compaction area of the flow equalizing synergistic plate is increased, and the adverse effect caused by installation deviation is fundamentally solved. The lengthened pressing plate 9, the flow-equalizing synergistic plate 6 and the lower fixing clamp plate of the tower wall sealing plate 10 are fixedly connected through the double bolts 8, the double bolts 8 are assembled with two nuts, double-shaft locking is formed after the double bolts are installed, and the operation stability of the peripheral flow-equalizing synergistic plate under the reciprocating vibration is effectively guaranteed.

The improved reinforcing technology is applied to a flow equalizing synergistic plate of a desulfurization absorption tower of a certain 600MW power generating set, the device is good in operation condition and stable in desulfurization efficiency after being put into operation for more than one year, and the expected effect is achieved.

The device is convenient to install on site, allows certain installation deviation, and can minimize the influence on the safe operation of the component. Particularly for the desulfurization transformation project, fire operation is not needed, and the anticorrosive coating is not damaged.