A method for hoisting a heat absorber

Abstract

Provided is a hoisting method for a heat absorber, which is completed by a hoisting device, including: preparations before hoisting the heat absorber, including: after sliding the heat absorber to the position directly below the position in the tower, multiple groups of steel strands are respectively anchored Connect the steel beam lifting lug at the bottom of the heat absorber with the pin shaft; install the lifting system, including the steel strand jack bracket, the steel strand jack and the steel strand support system; connect the heat absorber with the lifting system by fixing the anchor shell; Loosen the bolts between the heat sink and the ring beam, and raise the heat sink to a certain height; remove the heat sink sliding device and the ring beam; after installing the supporting beam sliding device, connect the supporting beam to the supporting beam sliding device; Lift the heat absorber to the embedding height, push the support beam into the groove of the cylinder wall through the pushing device, and the heat absorber is in place; start the hoisting of the heat absorber, including: after the person in charge checks and confirms, and fills in the check list , do the load test of the hoisting equipment of the heat absorber before the formal hoisting of the heat absorber; carry out the inspection before hoisting; carry out the formal hoisting.

Description

technical field [0001] The invention relates to the technical field of heat absorber installation, in particular to a heat absorber hoisting method. Background technique [0002] The tower-type molten salt photothermal power generation technology has been commercialized in large quantities due to its advantages of high concentration ratio, high photothermal conversion efficiency, continuous power generation at night, and independent peak regulation. [0003] The main construction area of ​​the photothermal power station is divided into the mirror field area and the power island area. The power island area is the core of the entire power station. All regular solar energy will be collected into the core building of the power island - the heat absorber on the light tower. , so that the solar energy is converted into heat energy of molten salt, and steam is generated when the molten salt exchanges heat with water to generate electricity. The light tower is a tall building with a...

AI Technical Summary

Problems solved by technology

The shape of the steel frame of the heat absorber is a cylindrical structure, and 16 main load-bearing columns are arranged in a cylindrical shape inside the molten salt heat absorber, and there are 4 other steel columns inside, which are used as the elevator shaft and support the top rotating crane equipment; the heat absorber The steel frame column feet are fixed to the supporting steel beams at the top of the concrete tower with bolts. Before pouring the floor slab at the top of the tower tube, the bolts used to connect the steel frame column feet of the heat sink need to be fixed to the supporting steel beams. Additional protection is required for the bolts , to prevent damage to the bolts and threads. During the installation process, it is necessary to ensure that the components are firmly connected to ensure safety and reliability under the conditions of dead load, wind load, earthquake and installation load. The current hoisting scheme is difficult to guarantee this

[0005]In addition, various details related to the selection and installation of tower cranes need to be fully demonstrated and planned, and it is difficult to obtain scientific, reasonable and economical mechanical equipment and The installation scheme slows down the construction progress of the light tower, and the construction cost is extremely high. Specifically, there are the following typical technical problems:

[0008]3. In order to save the time for people to go up and down and save the physical strength of the jacking workers, it is necessary to design a separate walking path, which needs to be dismantled later, which increases the loss of the project , the operating efficiency is reduced;

[0009]4. The tower crane hoisting project is risky. The tower crane hoisting machinery is installed on the top of the concentrating and heat-absorbing system, and the height of the arrangement is about 220m. The hoisted heavy heat sink can be reliably suspended on the top before being assembled on top of the concentrated heat absorption system

[0010] Even if the internal hoisting method is adopted, there is no mature and reliable hoisting solution in the existing technology. Therefore, it is necessary to study a new overall technical solution for the hoisting of the heat sink, so that the heat sink can be reliably hoisted to the light tower top, thereby solving one or more of the above technical problems

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