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1. For the sake of this , a new type of multi - tube hepa filter is studied in the paper
   針對這種情況，本文研究一種新型的多管式高效空氣過濾器。
2. On the other hand , it applies multi - tube structure which is in triangle arrange to lower resistance of the structure
   二是采用了多管式結(jié)構(gòu)三角型排列來降低其結(jié)構(gòu)阻力。
3. Firstly , the influence of the structure and work parameters on the performance of the filters is analyzed theoretically in the paper , and then deduces the resistance formulae of this multi - tube hepa filter
   本文首先從理論上分析了過濾器結(jié)構(gòu)和工作參數(shù)對其各項性能的影響，并推導(dǎo)出多管式高效空氣過濾器阻力理論計算總公式。
4. The experimental results show that this type of filter is do a kind of high efficiency and low resistance , which under its nominal air flow rate ( 1000m / h ) and when the diameter of filter tube is 30mm and the length of it is 1 . 1m , its resistance is the lowest , only 50pa
   實驗結(jié)果表明：該種多管式高效空氣過濾器確是一種高效低阻的過濾器，其在額定風(fēng)量下( 1000m ~ 3 h ) ，濾管直徑為30mm ，袋長為1 . 1m的過濾器阻力最小，只有50pa 。
5. Furthermore , the test filters in the paper are of triangle arrange structure which are different from the niexueli ' s . meanwhile the experiment has enriched test types and conditions of this multi - tube hepa filter and deducted the resistance of the system elbow more correctly , so can get more reasonable resistance formulae which establishes the foundation for the further economic optimization
   本文實驗在聶雪麗研究基礎(chǔ)上改用結(jié)構(gòu)阻力更小的叉排結(jié)構(gòu)，并豐富了試驗規(guī)格和實測工況，同時更準確地扣除了系統(tǒng)彎頭靜壓箱的阻力，從而得出了多管式高效過濾器的實用阻力計算公式，為進一步進行經(jīng)濟性優(yōu)化奠定了基礎(chǔ)。