GB/T 34620-2017 in English
VALIDCategory Ⅰ lithium bromide absorption heat pump unit
- Issued on:2017-09-29
- Implemented on:2018-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$250.00
$243.00
$243.00
《GB/T 34620-2017第一类溴化锂吸收式热泵机组》由TC238（全国冷冻空调设备标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
GB/T 34620—2017 Standard Interpretation
Background and Significance of Standard Formulation
Lithium bromide absorption heat pump unit is a highly efficient and energy-saving thermal equipment, widely used in central air-conditioning systems and industrial heating fields. The formulation of GB/T 34620—2017 fills the domestic technical gap in this field and provides a unified technical basis for product design, production and inspection.
Comparison of standard frameworks
| Dimensions | GB/T 34620—2017 | Comparison standards |
|---|---|---|
| Definition of terms | Clear definition and core performance parameters of lithium bromide absorption heat pump units | Not unified, with local differences |
| Performance requirements | Specify key technical indicators such as heating capacity, COP, and water-side pressure loss | Technical requirements are relatively scattered |
| Test methods | Provide detailed test equipment and test procedures | Lack of standardized experimental conditions |
Core performance parameter analysis
According to the standard, the key performance indicators of lithium bromide absorption heat pump units are as follows:
- COP (coefficient of performance): The ratio of heating capacity to the sum of the input heat and electrical power of the heating source, which must meet the minimum limit specified in Table 1.
- Water side pressure loss: Under rated conditions, the pressure loss of hot water and waste hot water shall not exceed 110% of the indicated value.
- Air tightness and pressure resistance: The unit must pass the ammonia hood leak test, and the leakage rate shall not exceed $2.03 \times 10^{-6} \mathrm{Pa} \cdot \mathrm{m}^{3}/\mathrm{s}$.
Implementation recommendations
Precautions in practical applications
- Selection phase: Select a single-effect or double-effect unit according to the usage scenario, and ensure that the nominal operating parameters match the site conditions.
- Installation requirements: Strictly follow the manufacturer's instructions for installation, focusing on the airtightness and insulation measures of the unit.
- Maintenance: Regularly check the concentration and purity of the lithium bromide solution to prevent scaling and corrosion problems.
Sample only — not a preview of GB/T 34620-2017
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