Structure and method for jacking absorption tower from middle segment
An absorption tower and jacking technology, which is applied in the structural field of jacking in the middle, can solve the problems of long period, high crane requirements, and cost, and achieve the effect of enhancing desulfurization capacity
Inactive Publication Date: 2010-11-10
GUANGDONG POWER ENG
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Problems solved by technology
However, due to the large volume of the absorption tower, which usually has a diameter of more than ten meters and a height of tens of meters, after it is cut, the weight of the upper section of the absorption tower is often hundreds of tons. Cranes, which have high requirements for cranes
At the same time, the volume of the crane that meets these conditions is also large, and the site needs to have enough space
For the absorption towers that have been used, there are often a large number of equipment and operating rooms installed nearby, which usually cannot meet the needs of the above-mentioned cranes. To meet the needs by removing the equipment and dismantling the operating rooms requires a huge workload. It takes a long time to issue
All these situations make the heightening process of the absorption tower very difficult, or even impossible
Method used
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[0023] Such as figure 1 , figure 2 , a jacking structure for the middle section of the absorption tower, in which a plurality of support columns 1 are welded on the outer wall below the cutting place where the middle section of the absorption tower is lifted, and a plurality of shrinkage columns 1 are welded on the outer wall above the cutting place where the middle section of the absorption tower is lifted The ring clamping plate 2 and the shrinking ring 3 are located below the clamping plate, and are tightened on the outer wall of the upper section 4 of the absorption tower. The support of the hydraulic jack 6 is fixedly installed on the support column 1, and its ejector rod supports the shrinking ring 3 from the bottom. Multiple hydraulic jacks are a complete set of equipment, controlled by a central hydraulic pump device, and the hydraulic systems of each hydraulic jack are connected to ensure that the hydraulic jacks move synchronously.
[0024] The shrink ring 3, such ...
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The invention discloses a structure and a method for jacking an absorption tower from middle segment, wherein the structure is characterized in that the outer wall of the lower part of the cutting position of the jacking of the middle-segment in the absorption tower is welded with a plurality of supporting uprights, the outer wall of the upper part of the cutting position of the jacking of the middle segment in the absorption tower is welded with a plurality of shrink-ring snap-gauges, a shrink-ring is positioned under the snap-gauges, is filled on the outer side of the upper segment of the absorption tower, and is tightly connected with the external wall of the upper segment of the absorption tower in an expanding way, a support of a hydraulic jack is fixedly arranged on the supporting uprights, and the ejector rob of the hydraulic jack supports the shrink-ring from the bottom part, after the absorption tower is cut into the upper segment and the lower segment, the upper segment of the absorption tower can be jacked to realize jacking through synchronically starting the hydraulic jacks. The process of jacking is free of a special hoist, and has no requirements to the surrounding environment, and is simple and convenient.
Description
technical field [0001] The invention relates to a structure and a method for lifting the middle part of an absorption tower used for treating tail gas in a thermal power plant. Background technique [0002] The flue gas from thermal power plants needs to be purified before being discharged to meet environmental protection emission standards. The absorption tower is the main equipment for the treatment of flue gas in thermal power plants. It is equipped with multi-layer spray layers. It can remove sulfur in the flue gas by spraying a specific slurry in the flue gas and reduce the sulfur content of the flue gas. amount to meet emission standards. The desulfurization effect of the absorption tower is usually determined by the spray layer, the more the number of spray layers, the better the desulfurization effect. [0003] For the absorption tower that has been installed and used, its desulfurization capacity is certain. When the power plant uses fuel coal with higher sulfur c...
Claims
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Login to View More IPC IPC(8): B01D53/18B01D53/48
Inventor 王建荣朱志飞廖欲元蔡少兵谭显东
Owner GUANGDONG POWER ENG