T/CAS 465-2021 in English
VALIDTechnical specification for intelligent interception wells
- Issued on:2021-01-04
- Implemented on:-
- File Format:PDF
- Delivery:Via email within 5 business days
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| Standard No: | T/CAS 465-2021 |
| Document status: | VALID |
| Title in English: | Technical specification for intelligent interception wells |
| Title in Chinese: | 智能型截流井应用技术规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2021-01-04 |
| ICS Classification: | 25.020-Manufacturing forming processes |
| Chinese Classification: | J40-Technological equipment in general |
| Professional Classification: | T/-Social Organization Standard |
| Related Keywords: | intelligent interception wells
intelligent interception intelligent interception wells introduction technical background traditional interception wells sewage interception channel |
| Related Topics: | Application Technology
standard cas smart standard cas cut off interception well cut Smart Rotary Integrated intelligent interception well application technical regulations Intelligent interception well Intelligent interception well design t/cas529-2021 t/cas478-2021 t/cas515 2021 |
本标准规定了智能型截流井应用技术的基本规定，结构型式和控制流程，设计，施工，工程验收，以及安全、运行和维护的要求。本标准适用于雨水管道、合流排水管道截污工程智能型截流井设计、施工、验收及运行管理，也适用于旧井改建施工、验收及运行管理。
Introduction
Technical background and evolution of standards
With the increasing requirements for urban water environment management, traditional interception wells can no longer meet the needs of precise rainwater and sewage diversion and backflow prevention. This standard systematically regulates the technical system of intelligent interception wells for the first time. Its technical evolution can be divided into three stages:
| Development stage | Technical characteristics | Typical problems |
|---|---|---|
| Mechanical (before 2000) | Fixed weir gate + manual control | Low interception accuracy and easy backflow |
| Electric (2000-2015) | Electric gate + local PLC | Poor linkage and difficult maintenance |
| Intelligent (2015 to present) | Internet of Things control + system linkage | Technical standards need to be unified |
Analysis of core technical requirements
Structural design specifications
Chapter 5 of the standard stipulates that the intelligent interception well must include the following functional modules:
- Dual-channel structure: The sewage interception channel and the rainwater discharge channel are designed independently
- Anti-backflow device: A check valve structure using patented technology (201820111976.X)
- Monitoring system: Online monitoring of three parameters: liquid level, flow and water quality
Intelligent control process
Article 6.3 of the standard clearly states that the control logic should be implemented:
- Dry season: full interception mode (sewage channel 100% open)
- At the beginning of rainfall: dynamically adjust the interception ratio according to the water quality threshold
- During flood season: automatically switch to direct discharge mode and start anti-backflow
Key points of project implementation
Guangzhou Science City Reconstruction Case
The intelligent interception well system constructed using this standard achieves:
- COD interception efficiency increased by 42%
- Incidence of waterlogging decreased by 67%
- Operation and maintenance costs reduced by 35%
Recommendations for standard implementation
| Application scenarios | Equipment selection | Parameter settings |
|---|---|---|
| Combined system old town area | Reinforced anti-blocking gate | Interception multiple n≥3 |
| Diversion system new area | Precision adjustment weir gate | Water quality threshold COD≤100mg/L |
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