reverse circulation 中文意思是什麼

reverse circulation 解釋
反循環沖洗
  • reverse : vt 1 使顛倒，使倒轉，使反轉；使翻轉；翻（案）。2 掉換，交換。3 使成正相反的東西，完全改變。4 【機...
  • circulation : n. 1. 循環；運行。2. 傳播；環流（量），流通（量）。3. （雜志等的）發行（額），銷數，銷路。4. 通貨，貨幣；流通證券。5. 【航空】環量，環流。
  1. This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time

    該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。
  2. The larger reverse circulation bits used for drilling through pebbles

    卵礫石層大直徑反循環樁孔鉆進用鉆頭
  3. Under the function of big pressure and dynamic load, the grains may be moved which may cause the soil body distortion. at present, the relatively ripe methods of drill in gravel layer are mostly double - wall drill pipe reverse circulation drilling, auger stem breast wall drilling and down - the - hole hammer follow down drilling

    論文根據jsl ? 30型礫石鉆機潛孔錘同心跟管鉆具結構，採用程序計算得到了鉆桿內各深度處壓力分佈、鉆頭壓力降、環形空間壓力分佈及空氣流速分佈。
  4. This machine adopts two species of drillingtechnique of direct and reverse circulation, the efficiency enhances observably in the process of ovum, gravel and rock layer construction

    該機可採用正反循環兩種鉆進工藝，在卵、礫、巖層施工中，效率顯著提高。
  5. The stroke reverse circulation drilling machine of czf2000 - 1800 type is produced by our company newly to adapt to the demand of percussion drill market due to the development of road and bridge industry, it is specializedly used for pore forming of pebble and gravel stratum and hard stratum

    1800型沖擊反循環鉆機是我公司最新研製生產的為適應我國路橋事業發展對沖擊鉆機市場的需求，專門用於卵礫石地層、堅硬地層中成孔的鉆機。
  6. Emulator analyse on rake angle of injector hole in reverse circulation bit

    反循環鉆頭引射孔傾角的模擬分析
  7. Experimental study of the reduced reverse circulation in thermosyphon solar water heater

    防倒流循環家用太陽能熱水器的實驗研究
  8. Standard guide for use of dual - wall reverse - circulation drilling for geoenvironmental exploration and the installation of subsurface water - quality monitoring devices

    地質環境勘探和地下水質量檢測裝置安裝用雙壁反轉鉆的使用標準導則
  9. Reverse circulation valve

    反循環閥
  10. Multi - medium reverse circulation composite drilling technique is a new geological drilling method effectively combined air reverse circulation continuous sample with hydraulic reverse circulation core drilling

    從數字技術的角度描述了未來的鉆探前景，它是基於自動檢測系統、智能專家系統和自動控制系統基礎之上的數字控制體系。
  11. The fault tree analysis of interruption of fluid in pump suction reverse circulation drilling

    泵吸反循環鉆進中循環液中斷的故障樹分析
  12. Discussion on application effect of reverse circulation technique with drilling pale

    鉆孔樁反循環工藝應用效果初探
  13. Cae on reverse circulation structure of buried pore hammer bit ofthrough model with gas - operated

    貫通式氣動潛孔錘鉆頭反循環結構的計算機輔助設計
  14. The practice amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller

    3工程鉆機動力頭雙通道反循環主軸改裝實踐
  15. The practice amp; amp; improvement of refit head dual channel reverse circulation main shaft about g - 3 engineering driller

    3工程鉆機動力頭雙通道反循環主軸改裝實踐
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