As a power product, the construction process of thermal power plant is a very complicated production technology activity, which is composed of products of multi-system, multi-specialty, multi-single project, multi-manufacturer and multi-construction enterprise. Its production process is characterized by singleness, clear production objectives, overall management, rational allocation of production factors and improvement of overall benefits.
The 2×330MW coal-fired unit project in Xisaishan, Hubei Province is a Sino-foreign cooperative investment project. According to the requirements of the former state power company and the owner, the model of 2 1 century coal-fired demonstration power plant will be built. Compared with the general power plant, the model power plant has broken the traditional design form, changed the traditional layout mode, reduced the floor space and reduced the building volume of the plant. The coal bunker is arranged behind the furnace and adopts compact modular design, which improves the automation level and reduces the engineering cost.
Characteristics of EPC Project Hubei Hongyuan Electric Power Engineering Co., Ltd. is a professional construction enterprise with national first-class general contracting qualification, and carries out engineering construction through bidding and EPC general contracting. As the general contractor, in the process of project construction, we should build a qualified thermal power plant that can meet the functional requirements and bring benefits to the owner according to the construction period, cost and quality required by the owner, and honor the EPC contract. For the general contractor, the implementation management of engineering construction is embodied in four links: organization, command, coordination and service, among which coordination management serves other links. The coordinated management of engineering construction is an important part of project management, which covers a wide range and includes many aspects of management. In the process of engineering construction, it is everywhere. Coordinated management is process management and dynamic management, which needs to balance the realization and selection of contradictory project objectives to ensure the smooth progress of engineering construction.
The construction environment, location, characteristics and requirements of thermal power projects are different, and the requirements for coordinated management of projects are also different. Compared with other projects, the 2×330MW coal-fired unit project in Xisaishan, Hubei Province has obvious characteristics in design mode, contracting mode and time limit for a project, which brings great difficulty to the coordinated management of the project and puts forward higher requirements. This project is one of the two "2 1 century demonstration power plants" projects of the former State Power Company, with high technical content, great construction difficulty, narrow site and limited working surface. How to deal with these problems is a great review of the construction management level of the general contractor and its subcontractors.
Building a "demonstration power plant", the national power construction industry basically has no particularly mature experience. For construction management, it needs a good overall concept and superb art of organization and coordination management. Take "small floor space" as an example. The underground pipe network in the thermal power plant area is generally arranged on both sides of the road, but the underground pipe network in the demonstration power plant is arranged below the road. Underground pipe network construction will face problems such as construction traffic, construction sequence and civilized construction. If these problems are not solved in time, the whole construction site will be in a disorderly state, which will seriously affect the smooth implementation of the project. Therefore, the general contractor adopts the method of partition construction and closed management, with one construction unit as the main body and other units interspersed with construction. It is necessary for the general contractor to organize and coordinate the construction area, how to organize road traffic and when to carry out interspersed construction according to the construction progress.
Risks and Responsibilities of EPC Project Cisaishan Power Plant Project is the first project in Hubei Province to adopt "EPC mode" for power plant construction. As the general contractor, he must bear all the responsibilities and risks in the project construction management. How to coordinate the relationship with foreign investors and the surrounding areas, how to manage the project department and subcontractors, and how to manage the construction progress in advance are all problems that the general contractor must face. The answer to these questions is the exploration process of construction experience.
The so-called "EPC" model is a one-stop process of design, procurement and construction, all of which are contracted by one enterprise. At present, this internationally popular project management method is showing unparalleled advantages. If the investment is saved, Party A can be divorced from the specific work of the project. But for the general contractor, it means complicated work and great responsibility. On the one hand, we should accept the supervision and management of the owner and supervisor, on the other hand, we should create a good construction environment for many subcontractors. Imagine how many accidents and problems there will be from the beginning of the project to the final trial operation for half a year. In order to deal with the surrounding relations, the general contractor and the owner went to the site to coordinate many times and reported to the local government in time, which eliminated the factors that hindered the construction and made the construction go smoothly. Due to the change of supply and demand in power market, the arrival of equipment has become the main factor restricting the construction progress. So the general contractor has done a lot of coordination work. On the one hand, he urged equipment manufacturers to deliver goods in time according to the contract requirements; On the other hand, in coordination with the owner, according to the power market situation, timely inject equipment funds into equipment manufacturers to ensure the timely arrival of engineering equipment. Many subcontractors are also the focus of coordination and management in the process of engineering construction. Multi-point operation, multi-discipline interpenetration, multi-level interchange, compact layout and narrow space put forward new topics for construction organization, command and coordination. Therefore, we should strengthen coordination, establish smooth information communication channels, grasp the construction situation, and timely understand the needs and existing problems of each subcontractor in the construction process. Organize design, construction, owner, supervision, materials, equipment and other related personnel to study together, take coordination measures such as adjustment and adjustment to solve problems, make full use of limited space and resources, and actively mobilize people's subjective initiative, so that the project construction is always in a controlled state of tension, order, continuous operation and relaxation.
Power engineering is related to the national economy and people's livelihood, involving thousands of households. The Sese Mountain Power Plant project is also a political project. After the project started for more than a year, the owner suddenly adjusted the construction period, which was the first time in Hubei Power Construction. This poses a severe challenge to the general contractor Hongyuan Electric Power Co., Ltd. and subcontractors, as well as equipment procurement, safety management and equipment installation. In order to adapt to the construction, the general contractor increased the frequency of production scheduling meetings, held on-site thematic coordination meetings from time to time, and set up full-time coordinators in different areas to solve small problems on the spot, give timely feedback on major problems, make decisions without staying overnight, and uniformly schedule resources. Due to strong organizational measures and coordination measures, the construction of Cisaishan Power Plant started on August 28th, 2002. 1 unit was put into operation on June 27th, 2004 168 hours, and unit 2 was put into operation on February 28th of the same year 168 hours, which achieved the construction goal of 1 unit and the requirements of the owner six months ahead of schedule.
The "model power plant design mode", "EPC general contracting mode" and "special time limit requirements" of Xisaishan Power Plant are a mode of general contracting of power construction projects, which has just emerged in China and there is no successful experience to learn from. This requires the general contractor to explore and sum up experience according to the practice of international general contracting and the characteristics of China electric power construction market, and make contributions to the development of thermal power construction in China.