Specializing in the production of oxygen breathing apparatus AHY6

AHY6 use compressed oxygen breathing apparatus is isolated regenerative oxygen breathing apparatus, mainly used in hazardous atmospheres of personal protection and accident treatment. Features: respiratory airflow to the positive and negative alternately run, respiratory resistance, counter-flow oxygen regulator for the way Assembling quantitative oxygen valve, automatic supply valve, manual supply valves, valves, safety valves Emergency switches into one centralized design, compact structure, easy disassembly and maintenance respiration interface with a nose clip-on, the user's head mounted on a rotating flexible mouth with saliva pump discharge, saliva can always exclude the upper and lower shell with aluminum control molding durable yet lightweight protective time 4h (moderate labor intensity) Rated working pressure oxygen bottles 20MPa (cylinder) oxygen cylinder volume 2L oxygen supply ration (1.4 ± 0.1) L / min automatic oxygen supply ≥100L / min for manual replenishment oxygen ≥80L / min automatic exhaust pressure (98 ~ 294) Pa automatic replenishment opening pressure (-98 ~ -294) Pa dimensions (455 × 375 × 165) mm mass ≤12.8kg (working condition) AHY6 ??oxygen breathing apparatus The light weight, small size, simple structure, easy maintenance, etc; but there are also quantified the amount of oxygen, the automatic supply valve opening pressure, automatic exhaust valve opening pressure and breathing air tightness often need to be adjusted each Stability species poor performance and other shortcomings. The various properties of the oxygen breathing apparatus AGH2 stability worse than AHY6 ??oxygen breathing apparatus, particularly automatic stability exhaust valve opening pressure worse. Relatively speaking: Biopak240 and BG4 type situation from the use of oxygen breathing apparatus, oxygen supply ration, automatic supply valve opening pressure, automatic exhaust valve opening pressure and breathing air tightness is better. But there is a bulky, heavy weight, maintain clean and complex negative aspects. Stability analysis of the oxygen breathing apparatus here, mainly from oxygen respirator universal problem ---- quantitative oxygen, automatic exhaust valve automatic replenishment valve for analysis and airtightness: 2.1, the oxygen supply ration oxygen breathing apparatus 2.1.1 Quantitative oxygen breathing apparatus works from my understanding of the situation, whether it is AHY6 ??type, AGH4 type, AGH2 type, American Biopak240 type, type BG4 Germany, Hong Ann HAY240 type, Fushun HYZ4 type oxygen breathing apparatus, or by welding, medical pressure reducer, oxygen quantified using the same principle by a high-pressure oxygen ---- intake pressure can automatically adjust the size of the size of the cross section of the outlet passage under low pressure to achieve a constant output, and achieve the purpose of quantitative oxygen by quantitative holes. 2.1.2, the amount of oxygen breathing apparatus quantitative stability analysis quantified the amount of oxygen AHY6 ??type, AGH4 type, AGH2 type oxygen breathing apparatus is adjusted, the user by adjusting related components, to adjust the pressure reducer smothering pressure within the bore size, the amount of oxygen to achieve the quantitative size of the regulation, so that the oxygen supply ration meet the requirements. Since the need to adjust the locking rear part fixed with a locking member being fixed bumps, upon impact and other effects of the tightening effect its stability is also affected to some extent, resulting in loosening of the fixing member, resulting in a quantitative amount of oxygen breathing apparatus Stability decreased. In addition, since the oxygen supply ration is adjustable, the activities of the section member, must inevitably produce friction trace metal powder, causing the metal powder on the part of the oxygen amount channel blockage, thus, causing oxygen respirator oxygen supply ration stable poor. American Biopak240 type, Germany BG4 positive pressure oxygen breathing apparatus, its oxygen supply ration is not allow the user to adjust the, relatively speaking, the quantitative amount of oxygen is more stable. Oxygen breathing apparatus automatic exhaust valve stability analysis Similarly, AGH4, opening pressure oxygen breathing apparatus AGH2 type exhaust valve is adjustable, and its adjustable inadequate parts and tightening effect, resulting in automatic exhaust oxygen breathing apparatus valve open poor stability, AHY6 ??type oxygen breathing apparatus (as), though not adjustable pressure value, but its exhaust end fixity poor, resulting in oxygen respirator stability automatic exhaust valve opening pressure difference. Oxygen breathing air tightness and stability analysis principles and common means of oxygen breathing apparatus to ensure air tightness, as are sealed fastening sealing techniques. Stability Analysis tightness exclude oxygen breathing apparatus exhaust valve not airtight factors, domestic respirator tightness instability is that many low-pressure seals using leather washers (eg AGH4, AGH2 type), longer time it is possible to dry, aging, resulting in decreased air tightness. In addition, many of the current maintenance oxygen breathing more difficult rubber seals (design reasons) and can not be coated with a lubricant for maintenance, is likely to cause the rubber sealing rings of aging, so that the sealing performance degradation, and replace the seals is not easy. Security analysis performance in an oxygen breathing apparatus are relatively stable, the comparative safety of mainly positive pressure breathing apparatus were compared with the negative pressure oxygen breathing apparatus. When the user inhales the negative pressure respirators, respiratory system produce negative pressure, when the flow is mainly the negative pressure must be generated reaches a certain value (generally at -20 mm water column around -20 hPa), the automatic supply of oxygen supply valve can be opened, so the environment is likely toxic gases into the respirator respiratory system, respiratory system slightly if not airtight, which is very dangerous.