“ꯏꯟꯆꯤ” ꯍꯥꯌꯕꯁꯤ ꯀꯔꯤꯅꯣ: ꯏꯟꯆꯤ (“) ꯑꯁꯤ ꯑꯃꯦꯔꯤꯀꯥꯒꯤ ꯁꯤꯁ꯭ꯇꯦꯃꯒꯤꯗꯃꯛꯇꯥ ꯀꯃꯟ ꯑꯣꯏꯕꯥ ꯁ꯭ꯄꯦꯁꯤꯐꯤꯀꯦꯁꯟ ꯌꯨꯅꯤꯠ ꯑꯃꯅꯤ, ꯃꯗꯨꯗꯤ ꯁ꯭ꯇꯤꯜ ꯄꯥꯏꯞ, ꯚꯜꯌꯨ, ꯐ꯭ꯂꯦꯡꯖ, ꯑꯦꯂꯕꯣ, ꯄꯝꯄ, ꯇꯤꯅꯆꯤꯡꯕꯥ, ꯍꯥꯌꯕꯗꯤ ꯁ꯭ꯄꯦꯁꯤꯐꯤꯀꯦꯁꯟ ꯑꯁꯤ 10′′ꯅꯤ꯫
ꯏꯟꯆꯤes (inch, abbreviated as in.) ꯍꯥꯌꯕꯁꯤ ꯗꯆ꯭ꯁꯇꯥ ꯊꯨꯝ ꯍꯥꯌꯕꯅꯤ, ꯑꯃꯁꯨꯡ ꯏꯟꯆꯤ ꯑꯃꯅꯥ ꯊꯨꯝ ꯑꯃꯒꯤ ꯂꯝꯕꯤꯅꯤ꯫ ꯇꯁꯦꯡꯕꯗꯤ ꯃꯤꯑꯣꯏꯕꯒꯤ ꯈꯣꯡꯎꯄꯀꯤ ꯂꯝꯕꯤ ꯑꯁꯤꯁꯨ ꯇꯣꯉꯥꯜꯂꯤ꯫ ꯱꯴ꯁꯨꯕꯥ ꯆꯍꯤꯆꯥꯗꯥ ꯅꯤꯡꯊꯧ ꯑꯦꯗꯑꯣꯌꯥꯔꯗ ꯑꯅꯤꯅꯥ “ꯁ꯭ꯇꯦꯟꯗꯔꯗ ꯂꯤꯒꯦꯜ ꯏꯟꯆꯤ” ꯊꯣꯀꯈꯤ꯫
ꯕꯥꯔꯂꯤ ꯀꯥꯡꯒꯤ ꯃꯔꯛꯇꯒꯤ ꯈꯅꯒꯠꯂꯕꯥ ꯑꯃꯁꯨꯡ ꯊꯪꯟ-ꯊꯪꯅꯅꯥ ꯁꯦꯃꯖꯤꯟ-ꯁꯥꯖꯤꯅꯕꯥ ꯈ꯭ꯕꯥꯏꯗꯒꯤ ꯆꯥꯎꯕꯥ ꯆꯦꯡ ꯑꯍꯨꯃꯒꯤ ꯂꯝꯕꯤ ꯑꯁꯤ ꯏꯟꯆꯤ ꯑꯃꯅꯤ ꯍꯥꯌꯅꯥ ꯂꯦꯞꯂꯤ꯫
ꯃꯍꯧꯁꯥꯅꯥ 1′′=2.54cm=25.4mm ꯑꯣꯏ꯫
DN ꯍꯥꯌꯕꯁꯤ ꯀꯔꯤꯅꯣ: DN ꯑꯁꯤ ꯆꯥꯏꯅꯥ ꯑꯃꯁꯨꯡ ꯌꯨꯔꯣꯄꯤꯌꯟ ꯁꯤꯁ꯭ꯇꯦꯃꯁꯤꯡꯗꯥ ꯃꯍꯧꯁꯥꯅꯥ ꯁꯤꯖꯤꯟꯅꯕꯥ ꯁ꯭ꯄꯦꯁꯤꯐꯤꯀꯦꯁꯟ ꯌꯨꯅꯤꯠ ꯑꯃꯅꯤ꯫ ꯃꯁꯤ ꯄꯥꯏꯞ, ꯚꯜꯌꯨ, ꯐ꯭ꯂꯦꯡꯖ, ꯄꯥꯏꯞ ꯐꯤꯇꯤꯡ ꯑꯃꯁꯨꯡ ꯄꯝꯄꯁꯤꯡ, ꯈꯨꯗꯝ ꯑꯣꯏꯅꯥ ꯗꯤ.ꯑꯦꯟ.꯲꯵꯰ ꯈꯉꯗꯣꯛꯅꯕꯒꯤ ꯁ꯭ꯄꯦꯁꯤꯐꯤꯀꯦꯁꯟ ꯑꯃꯁꯨꯅꯤ꯫
DN ꯍꯥꯌꯕꯁꯤꯅꯥ ꯄꯥꯏꯄꯀꯤ ꯅꯣꯃꯤꯅꯦꯜ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ (ꯅꯣꯃꯤꯅꯦꯜ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯍꯥꯌꯅꯥꯁꯨ ꯈꯪꯅꯩ), ꯅꯣꯠ ꯇꯧꯕꯤꯌꯨ: ꯃꯁꯤ ꯃꯄꯥꯅꯒꯤ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯅꯠꯠꯔꯒꯥ ꯃꯅꯨꯡꯒꯤ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯅꯠꯇꯦ, ꯃꯁꯤ ꯃꯄꯥꯅꯒꯤ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯑꯃꯁꯨꯡ ꯃꯅꯨꯡꯒꯤ ꯗꯥꯏꯑꯦꯃꯤꯇꯔꯒꯤ ꯆꯥꯡꯆꯠꯇꯥ ꯑꯣꯏꯕꯥ ꯆꯥꯡꯅꯤ, ꯃꯁꯤꯕꯨ ꯆꯥꯡꯆꯠꯇꯥ ꯅꯨꯡꯒꯤ ꯑꯣꯏꯕꯥ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯍꯥꯌꯅꯥ ꯀꯧꯏ꯫
Φ ꯍꯥꯌꯕꯁꯤ ꯀꯔꯤꯅꯣ: Φ ꯍꯥꯌꯕꯁꯤ ꯖꯦꯅꯦꯔꯦꯜ ꯌꯨꯅꯤꯠ ꯑꯃꯅꯤ, ꯃꯁꯤꯅꯥ ꯄꯥꯏꯞ, ꯑꯦꯂꯕꯣ, ꯒꯣꯜꯗ ꯁ꯭ꯇꯤꯜ ꯑꯃꯁꯨꯡ ꯑꯇꯩ ꯃꯆꯥꯀꯁꯤꯡꯒꯤ ꯃꯄꯥꯅꯒꯤ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯑꯗꯨꯕꯨ ꯈꯪꯅꯩ꯫ ꯃꯁꯤ ꯗꯥꯏꯃꯦꯠꯔꯤꯛ ꯍꯥꯌꯕꯁꯨ ꯌꯥꯏ꯫ ꯈꯨꯗꯝ ꯑꯣꯏꯅꯥ, Φ609.6mm ꯍꯥꯌꯕꯁꯤ 609.6mmꯒꯤ ꯃꯄꯥꯟꯊꯪꯕꯥ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯑꯗꯨꯕꯨ ꯈꯪꯅꯩ꯫
ꯍꯧꯖꯤꯛ ꯑꯩꯈꯣꯌꯅꯥ ꯌꯨꯅꯤꯠ ꯑꯍꯨꯝ ꯑꯁꯤꯅꯥ ꯀꯔꯤ ꯔꯤꯞꯔꯖꯦꯟꯇ ꯇꯧꯔꯤꯕꯒꯦ ꯍꯥꯌꯕꯗꯨ ꯈꯉꯗꯣꯛꯂꯦ, ꯃꯈꯣꯌꯒꯤ ꯃꯔꯛꯇꯥ ꯀꯔꯤ ꯃꯔꯤ ꯂꯩꯅꯕꯒꯦ?
ꯑꯍꯥꯅꯕꯗꯥ, ““DN”ꯒꯤ ꯑꯔꯊ ꯑꯁꯤ DNꯒꯥ ꯆꯥꯎꯔꯥꯛꯅꯥ ꯃꯥꯟꯅꯩ, ꯃꯔꯨꯑꯣꯏꯅꯥ ꯃꯁꯤꯅꯥ ꯅꯣꯃꯤꯅꯦꯜ ꯗꯥꯏꯑꯦꯃꯤꯇꯔ ꯍꯥꯌꯕꯁꯤꯕꯨ ꯈꯪꯅꯩ, ꯃꯁꯤꯅꯥ ꯁ꯭ꯄꯦꯁꯤꯐꯤꯀꯦꯁꯟ ꯑꯁꯤꯒꯤ ꯁꯥꯏꯖ ꯑꯗꯨ ꯇꯥꯀꯏ, ꯑꯃꯁꯨꯡ Φ ꯍꯥꯌꯕꯁꯤ ꯑꯅꯤ ꯑꯁꯤ ꯄꯨꯅꯁꯤꯅꯕꯅꯤ꯫
ꯈꯨꯗꯝ ꯑꯣꯏꯅꯥ: ꯀꯔꯤꯒꯨꯝꯕꯥ ꯁ꯭ꯇꯤꯜ ꯄꯥꯏꯞ ꯑꯃꯅꯥ DN600 ꯑꯣꯏꯔꯕꯗꯤ, ꯑꯃꯁꯨꯡ ꯆꯞ ꯃꯥꯟꯅꯕꯥ ꯁ꯭ꯇꯤꯜ ꯄꯥꯏꯞ ꯑꯗꯨ ꯏꯟꯆꯤꯁꯤꯡꯅꯥ ꯃꯥꯔꯛ ꯇꯧꯔꯕꯗꯤ, ꯃꯗꯨ 24′′ ꯑꯣꯏꯔꯀꯏ꯫ ꯑꯅꯤꯁꯤꯒꯤ ꯃꯔꯛꯇꯥ ꯀꯔꯤꯒꯨꯝꯕꯥ ꯃꯔꯤ ꯑꯃꯥ ꯂꯩꯕꯔꯥ?
ꯃꯁꯤꯒꯤ ꯄꯥꯎꯈꯨꯃꯗꯤ ꯍꯣꯌ! ꯖꯦꯅꯦꯔꯦꯜ ꯏꯟꯆꯤ ꯑꯁꯤ ꯏꯟꯇꯤꯖꯔ ꯑꯗꯨ 25ꯅꯥ ꯍꯀꯊꯦꯡꯅꯅꯥ ꯃꯁꯤꯡ ꯌꯥꯃꯍꯅꯕꯅꯤ, ꯃꯁꯤꯅꯥ DNꯒꯥ ꯃꯥꯟꯅꯩ, ꯃꯗꯨꯗꯤ 1′′*25=DN25 2′′*25=50 4′′*25=DN100 ꯑꯁꯤꯅꯆꯤꯡꯕꯥ꯫
ꯇꯁꯦꯡꯕꯗꯤ ꯇꯣꯉꯥꯟ ꯇꯣꯉꯥꯅꯕꯥ ꯑꯃꯁꯨ ꯂꯩꯔꯤ, ꯃꯗꯨꯗꯤ ꯳′′*꯲꯵=꯷꯵, ꯈ꯭ꯕꯥꯏꯗꯒꯤ ꯅꯀꯄꯥ DN80ꯗꯥ ꯒꯣꯜꯗ ꯇꯧꯕꯥ, ꯑꯃꯁꯨꯡ ꯁꯦꯃꯤꯀꯣꯂꯟ ꯅꯠꯔꯒꯥ ꯗꯦꯁꯤꯃꯦꯜ ꯄꯣꯏꯟꯇ ꯂꯩꯕꯥ ꯏꯟꯆꯤ ꯈꯔꯗꯤ, ꯈꯨꯗꯝ ꯑꯣꯏꯅꯥ ꯱/꯲′′ ꯳/꯴′′ ꯱-꯱/꯴′′ ꯱-꯱/꯲′′ ꯲-꯱ /꯲′′ ꯳-꯱/꯲′′, ꯑꯁꯤꯅꯆꯤꯡꯕꯥ, ꯍꯥꯌꯔꯤꯕꯁꯤꯡ ꯑꯁꯤ ꯑꯗꯨꯒꯨꯝꯅꯥ ꯂꯦꯄꯊꯣꯀꯄꯥ ꯉꯃꯗꯦ, ꯑꯗꯨꯕꯨ... ꯀꯦꯂꯀꯨꯂꯦꯁꯟ ꯑꯁꯤ ꯆꯥꯎꯔꯥꯛꯅꯥ ꯃꯥꯟꯅꯩ, ꯃꯔꯨꯑꯣꯏꯅꯥ ꯑꯀꯛꯅꯕꯥ ꯚꯦꯜꯌꯨ ꯑꯗꯨ:
꯱/꯲′′=ꯗꯤ.ꯑꯦꯟ.꯱꯵ ꯳/꯴′′=ꯗꯤ.ꯑꯦꯟ.꯲꯰ ꯱-꯱/꯴′′=ꯗꯤ.ꯑꯦꯟ.꯳꯲ ꯱-꯱/꯲′′=ꯗꯤ.ꯑꯦꯟ.꯴꯰ ꯲-꯱/꯲′′=ꯗꯤ.ꯑꯦꯟ.꯶꯵ ꯳-꯱/꯲′′=ꯗꯤ.ꯑꯦꯟ.꯹꯰
ꯄꯣꯁ꯭ꯇꯀꯤ ꯃꯇꯝ: ꯃꯥꯔꯆ-꯱꯰-꯲꯰꯲꯲꯫
