GB/T 38536-2020 in English
VALIDTechnical specification for the equipment of hot water heating substation
- Issued on:2020-03-06
- Implemented on:2021-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
| Standard No: | GB/T 38536-2020 |
| Document status: | VALID |
| Title in English: | Technical specification for the equipment of hot water heating substation |
| Title in Chinese: | 热水热力网热力站设备技术条件 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-03-06 |
| Implemented on: | 2021-02-01 |
| Professional Classification: | GB-National Standard |
| Related Keywords: | key equipment equipment type temperature resistance requirements pressure resistance requirements
hot water heating stations hot water domestic hot water system technical indicators heat exchanger selection |
| Related Topics: | hot water
hot water standard Equipment Technical Standards Calorific value conditions Water heater heating equipment heat hot water Water phase thermodynamics site level site Heat Thermal equipment and testing technology equipment station GBT38536 GB/T 38536-2020 Water-saving heating Long-distance heating and hot water pipe network technology Hydraulic Testing Technology |
《GB/T 38536-2020热水热力网热力站设备技术条件》由TC455（全国城镇供热标准化技术委员会）归口，主管部门为住房和城乡建设部。
Introduction
Interpretation of the core content of the standard
This standard specifies the technical requirements for key equipment in hot water heating stations, including selection parameters for 12 types of equipment such as heat exchangers and water pumps, material pressure and temperature resistance indicators, and monitoring system configuration specifications.
Comparison of technical requirements for key equipment
| Equipment type | Temperature resistance requirements | Pressure resistance requirements | Special provisions |
|---|---|---|---|
| Plate heat exchanger | ≤150℃ preferred | ≥1.05 times system pressure | Requires matching 1.5mm filter and dirt remover |
| Centrifugal water pump | ＞80℃ requires high temperature resistant type | NPSH≥3m | Efficiency≥value specified in Table 2 |
| Safety valve | Matching medium temperature | Trigger pressure 1.1 times working pressure | Micro-spring structure |
Key technical indicators
Heat exchanger selection:Plate heat exchanger (≤150℃) is preferred for heating system, 60min heat storage volume needs to be calculated for domestic hot water system, and temperature prediction device needs to be configured for semi-instantaneous type.
Water pump efficiency:The efficiency of single-stage centrifugal pump needs to be ≥82% (at flow rate of 100m³/h), and the matching motor efficiency needs to comply with the provisions of Table 3 according to the power level.
Recommendations for the implementation of the standard
- When purchasing equipment, suppliers should be required to provide complete quality certification documents, including pressure test reports and material certification
- The monitoring system needs to integrate the data of the water replenishment and constant pressure device, and the communication protocol should comply with international standards
- The pipe insulation material must meet the B1 fire protection requirements, and the water repellency rate must be ≥98%
Technology evolution analysis
This standard clarifies the acceptance requirements for absorption heat exchange units for the first time, reflecting the application trend of new energy in the heating field. New arc fault protection requirements are added to the low-voltage distribution cabinet, reflecting the improvement of safety standards.
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