Chapter 1 Public Bidding 1. Bidding Conditions: The name of this bidding project is: Guoyuan Power Hami Coal and Electricity Company's Mingzhu Heating Maintenance, Heating Centralized Control Center Duty, and Outsourced Service for Secondary Heat Exchange Station Operation (Three Years) Public Bidding. The project bidding number is CEZB250004482, the bidder is State Grid Energy Hami Coal and Electricity Co., Ltd., the project unit is State Grid Energy Hami Coal and Electricity Co., Ltd., and the funding source is self raised. The bidding agency is National Energy Group International Engineering Consulting Co., Ltd. This project has met the bidding conditions and is now undergoing domestic qualification review and open bidding. 2. Project Overview and Bidding Scope 2.1 Project Overview, Bidding Scope, and Section (Package) Division: 2.1.1 Project Overview: The first phase of Dananhu Power Plant is a 2 × 300MW cogeneration unit. Two units were put into operation in September and November 2011, and the current heating area is 8.5526 million square meters, accounting for about one-third of the total heating area in Yizhou District, Hami City. The design supply and return water temperature of the primary heating network is 130/70 ℃, the design circulation flow rate is 5200t/h, the design water supply pressure is 2.5MPa, and the return water pressure is 2.5MPa. The total length of the primary heating network is about 125 kilometers, and the total length of the secondary heating network is about 400 kilometers. At present, there are 2 initial heating stations and 112 heat exchange stations. The heating area and scope, length of primary and secondary pipeline networks, and number of heat exchange stations will increase year by year. 2.1.2 Procurement Scope: Operation, maintenance and upkeep, network adjustment and testing, pipe connection and disconnection, customer service and follow-up services for all heating facilities in the Mingzhu Heating Area of Dananhu Power Plant of Network Energy Hami Coal and Electricity Co., Ltd., including the first level pipe network system, the second level pipe network system of the community, the heat exchange station system (including property management heat exchange stations), external power supply facilities and lines (including high and low voltage), office, residential and commercial users' property nodes; Standard project maintenance during summer maintenance and handling of defects left over during winter. Regular maintenance and upkeep of the system, daily inspection and testing, regular testing, regular work, regular maintenance, equipment defect handling, accident repair, safe and civilized production, standardized construction, handling on-site heating shutdown business, and checking the status of heating shutdown. 2.1.3 Planned construction period: The total planned construction period is 3 years after the contract is signed, and the specific start date shall be subject to the notice of the tenderer. 2.1.4 Quality Requirements: Quality management shall comply with the following standards or regulations (including but not limited to the following standards): (1) Maintain quality and process management in accordance with the "Guidelines for Equipment Maintenance in Coal fired Power Generation Enterprises" DL/T838-2017, relevant standards or management systems of the tenderer. (2) Bidder's Equipment Maintenance Regulations. (3) Technical solutions, construction processes, technical measures, or operation manuals for special and technological renovation projects. (4) The installation project shall comply with the quality inspection and evaluation standards for thermal power engineering. The main indicators of maintenance quality are (1) strictly following the maintenance technical disclosure, technical scheme regulations, etc. for equipment maintenance, ensuring the quality and operating parameters of equipment maintenance, and meeting the manufacturer's design standards and relevant national maintenance specifications and standards. (2) Maintenance personnel should do a good job in recording data before and after equipment maintenance, and carry out technical inspections and technical tests for equipment disassembly, installation, and commissioning