The litter - resistance slowly closing butterfly check valve is developed a newest product based on our butterfly check valve, hydra - matic transmission to be add in the valve with unique design, new stuction and optimum performance, can be used pipeline of water supply and dring with such media : fresh water, sea water, sewage, raw water, ect. the valve should be installed at outlet of the water pump, in stapping the pump, the process of slowly closing after valve plate shuts rapidly. can be guard effectively against the destruction water hummer, so to ensure the safe operation of the pipline
微阻緩閉蝶式止回閥是在我廠生產的蝶式雙瓣止回閥的基礎上利用能量轉換原理增設油壓緩閉裝置的新型模式止回閥,設計獨特,結構新穎,性能優宜,適用於凈水,源水,污水,海水等介質的供、排水管路中,安裝於水
泵出口端,停
泵時由於油壓阻尼作用法盤先速閉后緩閉,以消除破壞性水錘,保證灌路安全運行。
According to pump performance curve shown we can get that the distance h is changed with the rotate speed n in the same point q, and the flux q is changed with the rotate speed n in the same point h. from the curve we can get the rule that the distance and rotate speed are in direct with ratio at the same flux point, and the rotate speed and the flux are also in direct with ratio at the same distance point
根據相似定律:流量與轉速的一次方成正比;揚程與轉速的二次方成正比;功率與轉速的三次方成正比。即在降低轉速,調低水
泵出水揚程的同時,功率下降的幅度非常大,從中可以節省相當大的電能。完全應在高水位時降低水
泵機組轉速,從而使電機的輸
出功率隨著轉速下降值與轉速原值商的三次方關系下降。
A potential new drug, for example, could " help the neuron to keep extruding sodium so it can help the sodium - calcium exchanger get rid of calcium, thereby not allowing calcium to reach toxic leels, " on gersdorff said
比如說有一種藥可以幫助神經元
泵出鈉離子從而幫助鈉鈣交換器運輸鈣離子,阻止鈣離子達到神經毒性濃度。
At the same time, a lot of electrical energy is wasted when the level is high and the working curve is displaced. so urgent affairs are choosing right timing ways to rebuild the pumps. applying frequency conversion timing to wind machines and pumps is an important technology in our country
設計都按照長江、漢水百年一遇最低水位選擇水
泵出水揚程,這樣在高水位時往往由於揚程太大而偏離水
泵的工作高效區,浪費了大量電能,選擇合適的調速方式對
泵船水
泵機組進行節能改造,成為當務之急。
Oil pump outlet pipe
機油
泵出油管
The human heart creates enough pressure when it pumps out to the body to squirt blood 30 feet
人類心臟會產生極大的壓力,把血
泵出體外時,血柱高度可達30英尺。
When heart valves become defective, blood in the left ventricle will not be completely pumped away in each heart beat
當心瓣有缺陷時,左心室的每次跳動都不能把血液完全
泵出。
A beam of laser light “ pumps ” the atoms so that their spins are polarized, then “ probes ” the polarized atoms for an mri signal
一束激光將原子
泵出,使得它們的自旋帶有極性,然後探測擁有極性的原子來產生mri信號。
This is the maximum output source or sink current that can flow safely into an output terminal of the device at voltages within the normal operating range
持續輸
出電流是指器件的輸
出端可以安全地注入或
泵出的最大電流。
Howeer, mutant abcg2 can be less efficient at pushing gefitinib out of cells in the intestine, the researchers noted. a buildup of drug within these cells can cause diarrhea
研究人員指
出,突變的abcg2降低了腸道細胞「
泵出」的功能,使得細胞內的藥物逐漸累積從而導致腹瀉。
The chemiosmotic hypothesis describes the stomatal opening as a process in which the osmotic materials, mainly potassium, accumulate in guard cells, and as a result of the increase of osmotic pressure and the absorption of water into guard cells the stomata are driven to open. the energy for trans - membrane transport of k + is the hyperpolarized potential across plasmalemma, which is established by the proton extrusion
化學滲透假說認為氣孔開放是由外來滲透物質(主要是k ~ + )等在保衛細胞中的累積造成的滲透壓上升所致,而離子跨膜運輸的動力是誘導氣孔開放的因子引發的保衛細胞向胞外
泵出質子所造成的超極化膜電位。
The centrifugal pump for oilfield waterflooding and oil transfer worked with low pump efficiency owing to unstable load and its energy loss is fairly large
油田注水集輸系統離心
泵由於載荷經常變化,大多不能在其額定工況點工作,
泵效低,且需要用
泵出口閥調節流量,產生一定的
泵管壓差,造成較大的能量損失。
Through the statistic analysis on the change of the melt gear pump working condition pre - and post - pet plant capacity increasing and concatenate direct spinning process, the reasons for the unsteady running were studied, the modification measures such as lubricating the oil groove with sliding bearing, mechanical sealing of the gear pump, decreasing the gear pump outlet pressure, changing the automatic speed increasing to hand speed increasing were put forward
摘要通過對聚酯裝置增容和後接直紡長絲前後熔體齒輪
泵工況變化的統計分析,研究其運行不穩定的原因,提
出改造措施,包括滑動軸承潤滑油槽,齒輪
泵的機械密封,降低齒輪
泵出口壓力,改自動提速為手動提速等等。
Results indicate that flow deviation in discharge passage is formed by co - action of pump outflow circulation and secondary flows in outflow curved pipe, hydraulic loss of discharge passage increases and pump assembly efficiency decreases because of flow deviation
結果表明:水
泵出流環量和
出水彎管二次流共同作用形成了
出水流道偏流,偏流使
出水流道水力損失增大,
泵裝置效率下降。
Mean the pump export diameter is 80 mm
表示
泵出口直徑是
Mean the pump export diameter is 32 mm
表示
泵出口直徑是
Mean the pump export diameter is
表示
泵出口直徑是
Ctc maximum head is suitable for pump discharge to butanol handling facility
用戶確認泵出口去丁醇處理裝置的最大揚程是合適的