泵的液體端 的英文怎麼說

中文拼音 [bèngdeduān]
泵的液體端 英文
pump liquid end
  • : 名詞(吸入和排出流體的機械) pump
  • : 4次方是 The fourth power of 2 is direction
  • : 名詞(液體) liquid; fluid; juice
  • : 體構詞成分。
  • : Ⅰ名詞1 (東西的頭) end; extremity 2 (事情的開頭) beginning 3 (門類; 方面) item; point 4 (原...
  • 液體 : liquid; liquor; fluid
  1. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld浦nd : yag激光器發展狀況、主要特性及其應用,從四能級速率方程出發,推導了ld浦nd : yag激光器閾值、輸出功率和斜效率表達式,並簡述了激光器工作原理、結構型式和倍頻方法;其次,以空間相關速率方程為基礎,提出了ld浦nd : yag激光器設計方法,給出了一定浦耦合方式下,振蕩光模尺寸、最佳輸出耦合率、浦光模尺寸、浦光焦斑位置等參數選取依據,以此為依據,設計了自聚焦透鏡耦合小功率ld浦nd : yag激光器和透鏡組耦合高功率ld浦nd : yag激光器,對激光器輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出高功率ld浦nd : yag激光腔內插入一隻空晶盒,觀察到了激光器以單縱模運轉;最後,根據浦光焦斑面位置對激光輸出功率影響規律,提出了ld浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時,激光輸出功率自然指數與浦光焦斑縱向位置成高斯變化規律,測量范圍和靈敏度依賴于浦功率,隨著浦功率增加,測量范圍擴大,靈敏度提高,當浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感器測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  2. When piston pump is applied force upward and movces, the lower check valve is opened, the fluid of upper pump chamber flows out of outlet when the piston runs upward

    柱塞受力向上移動時,下止回閥打開,湧入下室中,進行進料過程,上止回閥關閉,上室中在柱塞上行時由出口擠出。
  3. When pump is applied force downward and moves, the lower check valve is closed, the fluid in the pump is extruded and charges upward out of upper check valve, then flows into upper pump chamber, because that the piston has volume, some fluid flow out of outlet due to the reduce of spatial fluid volume in upper pump chamber

    柱塞受力向下移動時,下止回閥關閉,受擠壓而向上沖開上止回閥而流入上室中,由於柱塞本身佔有積,部分因上室內空間流減少而自出口流出。
  4. 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

    為確保灌注可靠工作,提出改進措施: ( 1 )採用改型環形降低葉輪徑向力,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,使軸封兩承受較小壓差; ( 3 )採用螺旋密封降低軸封兩壓差,在保持微壓同時避免出現負壓,密封效果更好; ( 4 )採用反壓式填料密封結構,在很小壓緊力下,即可保證密封; ( 5 )採用具有潤滑功效柔性石墨填料,即使發生軸封泄漏,進入石墨內部固相顆粒也將隨著石墨消耗而被鉆井吸收。
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