NB/T 10334-2019Code for investigation and assessment of hydropower resources (English PDF)

Foreword

According to the National Energy Administration's release of the first batch of industry standards (revisions) in the energy sector in 2011 According to the requirements of the "Notice of Planning" (Guoneng Technology (2011) No. 27), the specification preparation team has conducted extensive investigations and studies, Summarize practical experience earnestly, and formulate this code on the basis of extensive solicitation of opinions.

The main technical content of this specification is. data collection and field investigation, calculation of theoretical reserves, technical availability Development volume survey and evaluation, economic development volume survey and evaluation, survey and evaluation results.

1 General...1

1.0.1 In order to standardize the investigation and evaluation of water resources, unify the principles, technical methods, work content and reports of the investigation and evaluation. Report preparation requirements and formulate this code.

1.0.2 This code is applicable to the survey and evaluation of hydraulic resources across the country, regions, river basins and rivers (river sections).

1.0.3 The investigation and evaluation of hydraulic resources shall collect and sort out basic data, conduct investigation and research, and analyze the economic and social development.

Factors such as development, technological progress, ecological environment protection, and reservoir inundation impacts, after analysis, calculations, and statistics, Propose the theoretical reserves of hydraulic resources, technically developable, economically developable and positively developed quantities, and evaluate the resources Source characteristics, and compile the survey and evaluation report of hydraulic resources.

1.0.4 The survey and evaluation of water resources should clarify the scope and base year of the survey according to the requirements of the survey task. survey The base year can also be the year before the start of work.

1.0.5 The survey of water resources shall make full use of the results of river planning and survey and design of hydropower and water conservancy projects. Data system The calculation should be comprehensive, reliable, without omission, non-repetition, and consistent. The analysis and evaluation should be consistent with the economic and social development and Adapt to the technical level.

1.0.6 When economic and social development and technological progress, river planning, and preliminary work of hydropower and water conservancy projects are deepened and external When the environment of the Ministry of Agriculture changes, and the amount of technological development or the amount of economic development undergoing major changes, hydraulic Resource review.

1.0.7 The survey and evaluation of water resources shall not only conform to this code, but also conform to the regulations of current national standards. set.

3 Data collection and site investigation...3

3.0.1 The survey of water resources should mainly collect and sort out the physical geography, economic society, ecological environment, energy Resources, topography and geology, hydrology and sedimentation, river hydropower planning, comprehensive river basin planning, hydropower and water conservancy engineering survey Design, construction-in-progress data and power system related data, and necessary on-site investigations should be carried out.

3.0.2 The collection of physical geography data of the river basin should mainly include the source area of the river, the area flowing through it, the flow direction, and the area Accumulation, river length, drop, gradient of each river section, and main tributaries.

3.0.3 The collection of economic and social development data should mainly include the population, gross domestic product, Total industrial output value, total agricultural output value, as well as the main products, output, and transportation of industry, agriculture and animal husbandry;

The collection of natural resources data should mainly include land, forests, minerals, energy and water resources in the basin.

3.0.4 The hydrological and sediment data of the river basin should be fully investigated and collected, sorted out, analyzed and calculated, and necessary explanations should be carried out. It mainly includes the following contents.

1 Distribution and observations of the hydrological and meteorological station network in the basin.

2 The characteristic values of temperature, precipitation, and special weather phenomena at different elevations of the river sections in the basin data.

Runoff characteristics such as runoff source, runoff volume, runoff distribution, etc., and measured flood and historical flood conditions are based on And flood characteristics, water level along the river course, vegetation conditions in the river basin, river sediment content, suspended load and bed load transport The amount of sand.

3.0.5 Rivers with a series of hydrological data should be analyzed and adopted based on specific conditions. Rivers lacking measured hydrological data Natural runoff should be estimated using the latest hydrological chart issued by the authority. The runoff calculation should conform to the current Compliance with the relevant regulations of the industry standard "Hydrological Calculation Specification for Hydropower and Water Conservancy Projects" DL/T 5431.

3.0.6 The survey and collection of topographic data should mainly include 1.10 000 topographic maps and river longitudinal sections. Lack of 1.10 000 1.50 000 topographic maps should be collected when topographic maps, and river longitudinal sections should be surveyed for important river sections lacking the required topographic maps surface.

3.0.7 The survey and collection of geological seismic data should mainly include the seismic activity in the basin and the basic intensity, main Geological structure, exposed bedrock and its lithology, river bed overburden.

3.0.8 The survey of the impact of reservoir inundation should mainly include the main cultivated land, residential areas, minerals, and special facilities along the banks of the river.

Analyze the sensitive submerged objects that may be involved in the development of river hydraulic resources.

3.0.9 The ecological environment impact survey should mainly understand the environmental conditions and the main existing environmental problems, and analyze the river The main environmental sensitive factors that may be involved in the development of water resources include nature reserves, cultural Natural heritage, scenic spots, drinking water source protection areas, forest parks, geological parks.

3.0.10 Power system data collection should mainly include the technical and economic indicators of various planned power sources of the power system.

3.0.11 Collected results of river planning, survey and design results of hydropower and water conservancy projects, and data on projects already under construction An analysis review should be carried out.

3.0.12 Large and medium-sized rivers without hydropower planning should conduct on-site surveys and carry out preliminary surveys.

4 Calculation of theoretical reserves...5

4.0.1 The theoretical reserves shall be expressed in terms of annual electricity.

4.0.2 The theoretical reserves shall be calculated in sections. At the entrance of the tributary confluence, where the flow changes greatly, and the river slope changes Larger areas, as well as the starting and ending points of the boundary river of the administrative area, should be divided into sections.

4.0.3 The theoretical reserves of subsections shall be calculated using the average annual runoff or the average annual runoff. Meet the following requirements.

1 When the multi-year average annual runoff is used, the following formula should be used.

In the formula. E---segment theoretical reserves (10,000 kWh); g-acceleration of gravity (m/s2), taking 9.81; gamma--The bulk density of water (t/m3);

W--the average annual runoff of the upper and lower sections for many years (10,000 m³);

H--The water level difference between the upper and lower sections (m), the section water level adopts the water level corresponding to the average flow for many years, 2 The following formula should be used to calculate the multi-year average flow.

In the formula. Q-the average value of the average flow of the upper and lower sections for many years (m3/s);

4.0.4 The theoretical reserves of rivers should be accumulated from the source of the river to the mouth of the river. The theoretical reserves of the reach should be from the inflow The section starts to accumulate step by step to the outflow section.

5 Investigation and Evaluation of Technological Development...6

5.0.1 The technologically developable quantity shall be based on the river cascade development plan and according to the indicators of the cascade joint operation Determined and expressed in terms of installed capacity and multi-year average annual power generation.

5.0.2 For the hydropower stations that have been built or under construction, the technical development capacity should be calculated according to the design value. When the actual operating power generation It should be rechecked when there is a big difference from the design value.

5.0.3 For the rivers where the planning work has been completed and the hydropower stations where the design work has been carried out, the planning and design results shall be followed Count the amount of its technology that can be developed, and conduct a review when the development conditions change significantly.

5.0.4 For rivers where the planning work has not been completed, a cascade development plan should be drafted in conjunction with necessary on-site surveys, Calculate the installed capacity and annual power generation, and calculate the technological development capacity.

5.0.5 The calculation of installed capacity and annual power generation should consider the comprehensive aspects of flood control, navigation, irrigation, water supply, and ecological environment.

The calculation method should comply with the current industry standard "Code for Kinetic Energy Design of Hydropower Projects"

6 Survey and Evaluation of Economic Development...7

Appendix A Statistical Results Table of Hydraulic Resources...10 Appendix B Catalogue of Hydropower Investigation and Evaluation Report...18 Explanation of terms used in this specification...19 List of Reference Standards...20 Attachment. Article description...21 […]