Discussion on the structural design of power plant buildings

China’s rapid socio-economic development of the background, the power industry is also developing, all walks of life for the increasing demand for electricity, the power industry has ushered in a new opportunity, the power companies need to continue to improve the current power supply system to ensure the normal delivery of electricity. The quality of the main power plant is to ensure the normal operation of the power system is also a core part of the reform of the power plant has also become the focus of the current reform of the power companies, to ensure the quality of the main power plant, the need to analyze the two aspects of the construction technology and construction management to ensure the quality of engineering and construction, the design of the main power plant building structure is very complex, and the technical content of the relatively high, will be integrated with a variety of professional in the Technology, belonging to the focus of industrial design. For the design of the main plant requires relevant designers to have a wealth of design experience, to be able to grasp the important technology in the structural design of the building.

1 The structural form of the main power plant

The layout of the main plant in China has gradually formed a fixed frame structure, the main plant in the arrangement of the structural building volume is relatively large, the utilization rate of space is relatively small, and the structural design needs to be distributed according to the actual situation, scientific and reasonable structural arrangement. (1) the support structure of the main plant, the arrangement of large power plants are generally selected steel frame plus support structure, in the event of an earthquake, can better coordinate the steel frame and support force performance, with good seismic performance and greater lateral stiffness; if the plant in the arrangement of a variety of equipment is too centralized will also cause a lot of problems, the need for a good distribution of the arrangement of a variety of equipment can play a role in the protection of the plant’s effects (2) The cross-section structure of the plant can also meet the requirements of seismic design. (2) plant cross-section structure, when the structure of the plant is too complex, it will also increase the seismic response of the plant structure, under the support of the steel structure, reduce the area of support, can increase the rigidity of the steel structure of the plant, and effectively protect the plant, the area of the steel structure of the plant will be affected by a lot of factors, the structural design of the plant needs to take into account the area of the plant’s support, and to ensure that the overall stability of the plant.

2 characteristics of the main plant building structure

For the design of the main plant of the power plant needs to be designed according to the professional arrangement of the situation, in which the steam engine room is a steel frame structure of the rows, the coal bunker room is a steel structure frame arrangement, the steam engine unit needs to be arranged in the longitudinal direction. Boiler layout design is a semi-open-air layout, the door set is aluminum alloy roller shutter door, the rest are plastic steel doors and windows, the maintenance part is mainly masonry structure. The design of the main plant building of the power plant needs to meet the relevant process requirements, but also need to take into account the design of the building structure itself as well as the cost of the building structure, the main plant building of the functional partition is more, the design of the structure is also relatively more complex, pay attention to the coordination of the structure of the various functional partition, for the design of the building needs to be reasonably applicable and safe, to achieve the degree of satisfaction with the architectural design.

(1) The steam engine room generally adopts the arrangement of large units, and also arranges the facilities of heater platform and outlet line, which can facilitate the operation of access.

(2) the design of multi-functional control room, centralized control room is the control center of the power plant, the design is mainly to do a good job of fire prevention, waterproofing and ventilation, etc., to ensure the comfort of the indoor working environment, the centralized control room is arranged as a double-decker floor-to-ceiling windows, but also arranged a multi-functional handover room, to facilitate the temporary rest of the workers, with a comprehensive range of functions.

The roof of the steam engine house is generally a double-slope roof, the electrical equipment and control equipment in the steam engine room are more, and the intersection of various pipelines makes the pipeline arrangement inconvenient, if a single-slope roof is used, it will avoid the drainage link, and the lighting cover is set up, which can ensure the natural lighting.

3 onclusion

In summary, the design of the main plant building structure is very complex, relatively high technical content, the design process needs to integrate a variety of professional technology, belonging to the focus of industrial design. At the same time for the designers themselves is also a rigorous test, the designers need to have a wealth of design experience, familiar with the main process and equipment characteristics of the power plant system, and be able to grasp the important technical conditions in the design of the power plant main plant building structure. The whole project design process should also do with the engineering related professional close cooperation, to ensure that the process is optimal, the building structure technology is advanced and practical, safe, reliable, economically rational, in line with the relevant standards, regulations, norms and other aspects of the consideration, and put forward different design solutions. Finally, according to the actual situation of the project, from which the evaluation, than selected the optimal design program, in order to carry out the next step of the design work.