背負泵 的英文怎麼說
中文拼音 [bēifùbèng]
背負泵
英文
back-pack pump-
Back pack pump tank
背負式帶泵滅火器To ensure the charging pump working reliably, the following measures should be adopted : ( 1 ) adopting modified circular casing to reduce the radial force of the impeller and decrease the seal clearance ; ( 2 ) using radical ribs on impeller and helical sealing on shaft to realize minor pressure differential ; ( 3 ) using back pressure stuffing box to ensure sealing under small packing force ; ( 4 ) adopting self - lubricant flexible graphite stuffing for absorption of solids entering in the graphite in case of leaking
為確保灌注泵可靠工作,提出改進措施: ( 1 )採用改型環形泵體降低葉輪的徑向力,減小軸封間隙,抑制泄漏; ( 2 )採用背葉片降低葉片根部壓頭,獲得微壓,使軸封兩端承受較小壓差; ( 3 )採用螺旋密封降低軸封兩端壓差,在保持微壓的同時避免出現負壓,密封效果更好; ( 4 )採用反壓式填料密封結構,在很小的壓緊力下,即可保證密封; ( 5 )採用具有潤滑功效的柔性石墨填料,即使發生軸封泄漏,進入石墨內部的固相顆粒也將隨著石墨的消耗而被鉆井液吸收。Back pack pump tank fire extinguisher
小型背負泵式滅火器Equipment used for spraying can range from a small hand - held compression sprayer to a gas - powered backpack sprayer to a hydraulic mist blower
用來噴灑的設備大小不一,可以是小型手提噴灑泵,或者是用背負式機動噴灑裝置,甚至是大型的噴灑機。分享友人