NB/T 10385-2020Technical Code for Real-Time Ecological Flow Monitoring Systems of Hydropower Projects (English PDF)

1.0.1

In order to standardize the content, methods, standards and systems of the real-time monitoring system for ecological flow of hydropower projects, unify technology

Requirements, formulate this specification.

1.0.2

This specification applies to the design, construction, operation management and maintenance of the real-time monitoring system for ecological flow of hydropower projects.

1.0.3

The real-time monitoring of ecological flow shall meet the overall requirements of ecological environment monitoring of the river basin, and shall follow the systematic, representative,

The principle of coordination.

1.0.4

The real-time monitoring system for ecological flow of hydropower projects shall not only comply with this specification, but also comply with the current relevant national regulations.

Standard provisions.

2.0.1

The real-time monitoring system for the ecological flow of hydropower projects should fully collect information such as environmental status and project characteristics.

On the basis of materials, combined with the needs of the whole process of environmental management, carry out system design and construction, and formulate operation management regulations.

Process, implement operation management and maintenance.

2.0.2

The design and construction of the real-time monitoring system for ecological flow of hydropower projects should make full use of the project-related monitoring systems

Basic conditions, taking into account factors such as transportation, communication, management and protection, and safety. Ecological flow of upstream and downstream cascades in real time

The monitoring system should be coordinated and connected with each other.

2.0.3

The layout of the real-time monitoring system for ecological flow of hydropower projects should consider the pivotal buildings and ecological flow release facilities.

Factors such as construction layout, reservoir operation mode and environmentally sensitive targets, and meet the requirements of safety, reliability, technical feasibility, and economic

Economically reasonable request.

2.0.4

The real-time monitoring system for ecological flow of hydropower projects should have real-time automatic collection and transmission of ecological flow data.

Basic functions such as input, storage, processing, display and sharing.

3.1 General rules

3.1.1

The system design should be based on the analysis of functional requirements, and after technical and economic comparison and demonstration, determine the production

The real-time monitoring system scheme of the state flow.

3.1.2

The system design should be based on ecological flow monitoring requirements, combined with topographic and geological conditions, engineering development methods,

The deployment of hubs and ecological flow discharge facilities are carried out.

3.1.3

The design tasks of the ecological flow real-time monitoring system should mainly include the following contents.

1 Determine the basic functions of the system.

2 Draft a station network layout plan.

3 Draw up a monitoring technical plan.

4 Propose a communication network design plan.

5 Propose power and voltage protection and grounding measures.

6 Propose a configuration plan for telemetering station equipment.

7 Propose a data processing system plan for the central station.

8 Propose a plan for the construction of monitoring facilities.

9 Propose a system operation management and maintenance plan.

10 Preparation of investment estimates.

3.2 Basic information

3.2.1

System design should collect environmental protection related data of hydropower projects, mainly including environmental impact assessment documents,

Post-evaluation documents of environmental impacts, environmental protection design results.

3.2.2

System design should collect hydropower project characteristic data, mainly including the following.

1 Reservoir characteristic parameters and regulation performance data.

2 Hub characteristic parameters, design drawings and data.

3 Characteristic parameters and design drawings of ecological flow discharge facilities.

3.2.3

The system design should collect the operation data of the hydropower project, mainly including the reservoir dispatching plan and the storage in the representative year

Flow rate, outflow flow rate, water level before and below the dam, and operation data of ecological flow release facilities.

3.2.4

The system design should collect topographic data not less than 1.2 000 in the selected ecological flow monitoring station area.

3.2.5

The system design shall collect the temperature, humidity, sunshine, wind speed and wind direction of representative weather stations in the project area

The characteristic data of other elements.

3.2.6

The system design should collect the water level, flow, velocity, flood, ice conditions, etc. of the representative hydrological station in the project area

Characteristic data, and the relationship curve of water level and discharge of representative sections.

3.2.7

System design should collect relevant data such as hydrological monitoring system and wading buildings in the project area.

3.3 Site network layout

3.3.1

The network of real-time monitoring stations for ecological flow should be composed of telemetry stations and central stations. The monitoring station network should be fully deployed

Utilizing the existing conditions of the relevant monitoring station network, priority can be given to sharing equipment, data and stations with relevant monitoring facilities room.

3.3.2

The layout principles of ecological flow telemetry sites shall be controlled and representative, and meet the following requirements.

1 For the post-dam-type power station, the ecological flow discharge facilities, the tail water outlet of the power plant and the discharge

A telemetering station shall be arranged at the confluence of the downstream rivers at the exit of the flood building.

2 For diversion and hybrid power stations, they should be located at the ecological flow discharge facilities and ecological flow discharge facilities respectively.

Deploy telemetry at the junction of the downstream river course at the outlet of the facility and the outlet of the flood discharge structure, and the downstream river course at the outlet of the power generation tail water

Site.

3 There are important fish habitats, aquatic life reserves, important wetlands, important water intakes, etc. downstream of the power station

When environmentally sensitive targets are distributed, telemetry sites should be deployed at sensitive targets.

4 The layout of the telemetry site should be able to reflect the entire ecological flow and process of the power station, which should be avoided...