GB/T 29466-2023 in English
VALIDPlate heat exchanger unit
- Issued on:2023-05-23
- Implemented on:2023-05-23
- File Format:PDF
- Delivery:Via email within 5 business days
$466.00
《GB/T 29466-2023板式热交换器机组》由TC262（全国锅炉压力容器标准化技术委员会）归口，TC262SC5（全国锅炉压力容器标准化技术委员会热交换器分会）执行，主管部门为国家标准委。
Introduction
Core changes in the standard revision
| 2012 version | New content in the 2023 version | Technical impact |
|---|---|---|
| Applicable only to detachable plate heat exchangers | Extended to welded/shell and tube heat exchangers | Scope of application expanded by 30% |
| No energy efficiency requirements | Mandatory motor energy efficiency rating | Energy consumption reduced by 15-20% |
| Basic control functions | New definition of intelligent heat exchanger units | Requires remote operation and maintenance platform configuration |
Key technical parameter specifications
Typical unit design pressure priority value:
- Steam system: ≤0.5MPa/160℃
- Liquid system: ≤2.5MPa/150℃
Upper limit of rated heat load of unit: 12MW, flow rate control requirements:
- Steam pipeline: ≤35m/s below DN200
- Liquid pipeline: ≤3.5m/s and specific friction resistance ≤400Pa/m
Key points for energy efficiency improvement
- Preferential use of YE3 series high-efficiency motors (GB/T 28575)
- Circulation pump/make-up pump must be equipped with an independent inverter
- Plate heat exchanger must be marked with energy efficiency grade
- System integrated climate compensation function
Intelligent control system requirements
| Functional module | Technical requirements | Test standards |
|---|---|---|
| Data acquisition | 10s refresh rate, ±1℃ accuracy | GB/T 32224 |
| Remote communication | Support Modbus/RS485 | GB/T 36478.4 |
| Safety protection | IP54 protection grade | GB/T 15479 |
Key tips for installation and maintenance
Precautions for hydraulic test:
- Test pressure = 1.3 times the design pressure
- Austenitic stainless steel equipment chloride ion ≤ 25mg/L
- Pressure holding time ≥ 30 minutes
Chemical cleaning specifications:
- Chloride ion concentration ≤ 300mg/L
- Wire brush is prohibited for cleaning plates
- Re-pressure test is required after cleaning
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