Quality verification and maintenance suggestions for halogen pretreatment of igniter of Xinsheng Zhuorui YDRSY oxygen bomb combustion test device

Overview: The ZR-YDRSY oxygen bomb combustion test device developed and produced by Beijing Xinsheng Zhuorui Technology Co., Ltd. is used in the following areas: oxygen bomb combustion test device, also known as halogen determination pretreatment device, composed of customized oxygen bomb, pressure reducing valve, oxygenation instrument, electronic pulse igniter, etc. Mainly used in laboratories, research institutions, university laboratories, third-party quality inspection units, for testing flammable liquids, powder materials, halogens, plasticizers and other flammable substances, as well as for analyzing the combustion and residual state of materials. It is also used for quantitative analysis of heavy metals and harmful halogen elements in electrical plastic products and circuit boards. It is used for pre-treatment of waste halogen samples, ion chromatography analysis of solid (or liquid) samples after combustion in oxygen bombs, and absorption of combustion gases by absorption liquids. It is also used as a sample pre-treatment device for ion chromatography analysis.

1. Quality Verification Standards for Oxygen Bomb Combustion Test Equipment

Appearance verification: The electrode surface has no obvious oxide layer, oil stains, coating damage, uniform color, and no scratches or corrosion spots;

Performance verification: ignition success rate ≥ 98%, stable arc, no arc interruption or jumping phenomenon; The fluctuation range of ignition energy is ≤± 5%;

Durability verification: After 20 consecutive tests on halogen containing materials, there was no significant corrosion on the electrode surface and no significant decrease in ignition performance;

Residual verification: Ion chromatography is used to detect the residual amount of halogens on the electrode surface, and the residual concentrations of Cl ⁻, Br ⁻, etc. are required to be ≤ 0.1 μ g/cm ².

2. Daily maintenance suggestions for oxygen bomb combustion test device

Regular preprocessing: In routine testing scenarios, preprocessing is performed every 15-20 tests, and for halogen containing materials, preprocessing is performed every 5-10 tests;

Cleaning after the experiment: After each experiment, promptly blow the inside of the igniter with dry air to remove residual combustion products and halogen gases;

Storage environment: When the device is idle, place the igniter in a dry, cool, and non corrosive gas environment to avoid electrode corrosion caused by moisture or halogen gas enrichment;

Regular calibration: Calibrate the ignition energy and electrode spacing of the igniter every 3 months to ensure that the equipment is in good working condition;

Spare parts management: The spare electrode components need to be pre treated and sealed for storage to avoid contamination during storage.

Working principle: The sample burns, oxidizes, and decomposes solid and liquid organic samples under the action of high-pressure oxygen in a closed system, converting them into chlorides, bromides, etc. that can be absorbed by the solution. An absorbent solution is placed inside the oxygen bomb to collect and absorb the decomposed halogens. The absorbed solution can be quantitatively tested for halogen and sulfur content using external standard methods such as ion chromatography, ion selective electrode method, photometry, or titration.