GB/T 37554-2019 in English
VALIDPerformance test code on deaerator
- Issued on:2019-06-04
- Implemented on:2020-01-01
- File Format:PDF
- Delivery:Via email within 5 business days
$418.00
| Standard No: | GB/T 37554-2019 |
| Document status: | VALID |
| Title in English: | Performance test code on deaerator |
| Title in Chinese: | 除氧器性能试验规程 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2019-06-04 |
| Implemented on: | 2020-01-01 |
| ICS Classification: | 27.040-Gas and steam turbines, Steam engines |
| Chinese Classification: | K54-Steam turbine and its auxiliary equipment |
| Professional Classification: | GB-National Standard |
| Related Keywords: | performance test code
outlet water temperature test duration≥24h thompson τ test method standard technical elementsspecification requirementsimplementation points technical specifications potentiometric titration operation flow use |
| Related Topics: | deaerator
Deaerator Type Deaerator Control Deoxygenase Oxygen zone Oxygen zone GBT37554 GB/T 37554-2019 Deaerator Manufacturing Specifications |
《GB/T 37554-2019除氧器性能试验规程》由524（中国电力企业联合会）归口，主管部门为中国电力企业联合会。
Introduction
Analysis of the core content of the standard
| Technical elements | Specification requirements | Implementation points |
|---|---|---|
| Dissolved oxygen limit | ≤75μg/L | Requires potentiometric titration or calibrated online instrument |
| End difference control | <1℃ | Requires accurate measurement of saturation temperature and outlet water temperature |
| Test duration | ≥24h stable operation | Special circumstances require 10 water tank replacement times |
Key detection technical specifications
Potentiometric titration operation flow
Use 500mL special sampling bottle, and strictly follow the reagent addition order:
- Reagent No. 2 (alkaline potassium iodide) → Reagent No. 1 (manganese sulfate) → Reagent No. 3 (sulfuric acid)
- The order of blank samples is adjusted to: No. 2 → No. 3 → Reagent No. 1
- The potential change required to determine the titration endpoint is ≤3mV
Typical error sources: Sampling tube permeability (should be ≤PVC standard), rotary valve sealing, reagent purity (analytical grade)
Thermodynamic calculation model
Heat balance equation:
Q = (Ww+Wd1+Wf+Wdn)h2 - (Wwh1+Wd1hd1+Wfhf+Wdnhdn)
For the definition of each parameter, please refer to the symbol description in Table 1 of the standard
Measurement uncertainty control
| Parameter | Allowable uncertainty | Main influencing factors |
|---|---|---|
| Dissolved oxygen concentration | ±2.6μg/L | PAO calibration error, sampling volume deviation |
| Feedwater end difference | ±0.6℃ | Temperature sensor accuracy, saturation pressure conversion |
According to the example in Appendix B, tv is taken as 2.571 when the test is repeated 6 times
Background of standard evolution
This standard is formulated with reference to ASME PTC 12.3. The main technical improvements include:
- Added calibration requirements for online analytical instruments
- Referencing the impurity correction table for heavily polluted water (see Table 5)
- Clarifying the Thompson τ test method for handling abnormal data
The measurement point layout diagram provided in Appendix A has important guiding value for the actual installation of power plants
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 34576-2017 in English
Specifications for steam turbine used in gas-steam combined-cycle unit
2017-09-29 -
GB/T 28559-2025 in English
Supercritical and ultra-supercritical turbine—Blades
2025-04-25 -
GB/T 34117-2017 in English
Specifications for moisture separator reheaters in conventional island of nuclear power plant
2017-07-31 -
GB/T 28553-2012 in English
Steam turbines—Steam purity
2012-06-29 -
GB/T 13399-2025 in English
Technical specification for safety monitoring of steam turbine
2025-12-02 -
GB/T 7441-2008 in English
Measurement of airborne noise emitted by steam turbines and driven machinery
2008-07-16
