A method for assembling and welding reactors in a narrow space of a dehydrogenation device frame
A narrow space, inner reactor technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problem of the inability to effectively ensure the installation accuracy of tower equipment in the frame, the increase of large-scale machinery and labor costs, and the The construction safety cannot be maximized, so as to achieve the effect of shortening the construction period, improving economic and social benefits, and saving investment.
Active Publication Date: 2021-07-30
CHINA NAT CHEM ENG THIRD CONSTR
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Problems solved by technology
[0003] However, the current common installation process of similar equipment in the concrete frame has the following disadvantages. It cannot effectively ensure the installation accuracy of the air-assembled tower equipment in the frame, and the construction safety cannot be guaranteed to the maximum extent. After welding, large-scale machinery is used for hoisting, which leads to a great increase in the investment of large-scale machinery and labor costs, long construction period, and certain safety risks
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Embodiment 1
[0035] like Figure 1-8 Shown, a kind of method of reactor assembly welding in the narrow space of frame of dehydrogenation device comprises the following steps:
[0036] Step S1, leveling the site: building a concrete frame on the leveling site, and prefabricating the spring hanger support beams on the concrete frame, and installing the parts that do not affect the equipment installation in advance;
[0037] Step S2, hoisting of the lower equipment: use 1000-ton and 400-ton combined crawler cranes to hoist the lower equipment into the concrete frame in sequence, and the lower equipment is the reactor reheater TT-1229 / GY-1202;
[0038] Step S3, install the steel frame and align it: use a crane to temporarily place the lower equipment on the "well"-shaped road logs, and at the same time ensure that the crane does not loosen the hook and make it in a semi-load-bearing state. Due to the needs of on-site construction, the crane needs to be maintained This kind of semi-load-bearin...
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The invention relates to a method for assembling and welding reactors in a narrow space of a dehydrogenation device frame, comprising the following steps: step S1: leveling the site, step S2: hoisting lower equipment, step S3: installing steel frame alignment, step S4: jacking Arrangement, step S5: hoisting and handling of upper equipment, step S6: connection of upper and lower equipment interfaces, step S7: spring hoisting installation and adjustment, step S8, dismantling the alignment steel frame. This method of assembling and welding reactors in the narrow space of the frame of the dehydrogenation device can effectively ensure the installation accuracy of the air-assembled tower equipment in the frame, ensure construction safety, save large-scale machinery and labor costs, and is different from traditional construction methods. Compared with it, it can greatly shorten the construction period, reduce safety risks, and achieve better economic and social benefits.
Description
technical field [0001] The invention belongs to the technical field of aerial assembly in the frame of tower equipment, and in particular relates to an efficient and safe method for assembling and welding a reactor in a narrow space of a dehydrogenation device frame. Background technique [0002] The styrene project has a dehydrogenation reaction process, and the dehydrogenation reaction zone equipment includes the second dehydrogenation reactor and the reactor reheater. When these two devices are installed in the concrete frame, they need to be paired in the air. [0003] However, the current common installation process of similar equipment in the concrete frame has the following disadvantages. It cannot effectively ensure the installation accuracy of the air-assembled tower equipment in the frame, and the construction safety cannot be guaranteed to the maximum extent. After welding, large-scale machinery is used for hoisting, which leads to a great increase in the investme...
Claims
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IPC IPC(8): B23K28/02B66C23/26
CPCB23K28/02B66C23/26
Inventor 高斌潘云东
Owner CHINA NAT CHEM ENG THIRD CONSTR