U215-A PRINTER

U215-A PRINTER

erally is mounted centrifugal pump installed in tank. The inlet pressure of fuel dispenser with submersible pump is higher than atmospheric pressure. Submersible pump consists of pump, connecting pipeline and controller. The appearance of submersible pump and its position in tank is showed in diagram 2-10. Diagram 2-10: Submersible pump position and figure Submersible pump is composed of motor and centrifugal pump. Pump motor includes electromotor, wiring panel, overheat protector and pipeline; centrifugal pump has the elements of filter, anti-static subassembly, impeller and pump axis. Diagram 2-11: Main structure of submersible pump Connecting pipeline has two types of fixed and stretched. The former type consists of oil pipe, vapor-recovery pipe, lead pipe and wire. The later type is formed by oil pipe, vapor-recovery pipe, adjusting nut, lead pipe and motor wire. Controller is divided as two parts, upper and lower. Upper part have these components junction box, electric bridge, capacitor, exhausting plug, check valve, pressure adjustor, testing interface of exhaustion and pressure, leakage monitor of pipe. However, lower part is constituted by pipe jointer, lead terminals, pump holder, etc. By function, submersible pump is classified as four categories, namely, standard type, enhanced type, changing-frequency type and large flow type. The standard type access to general requirements, but the enhanced type not only increase flux than standard type, but also available to mix liquid of gasoline with alcohol. The changing- frequency submersible pump adopt pipe pressure to judge flux. Given a situation in inefficient flux and low pressure the electric frequency of motor would tune high through computer, so as to elevate rotate speed and increase flux. Contrarily, to reduce electric frequency and rotate speed as pipe pressure being low, adjusting appropriate flowage. The large flow type is adapted i fuel dispenser n filing station in where needs quickly operation. Some submersible pump has the flow speed of more fuel dispenser fuel dispenser

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Germany and the prospect of a new president in France will cost Turkey two key supporters. The reluctance of voters—in Austria, France and Germany in particular—to see Turkey as a full member is helping slow reforms and revive nationalism many Turks are unwilling to change to please Europeans who don t want them in their club anyway. The negotiations frozen this week can be reopened only with the unanimous approval of existing members that gives Turkey s hardline opponents a veto. Bad reason for a breach The row about Cyprus is pretty typical. Turkey certainly has a legal obligation to open trade links with the (Greek-Cypriot) republic. However, the EU promised to end its embargo of the north when the UN s unification plan for the island was accepted by the Turkish-Cypriots but rejected by the Greek-Cypriots in April 2004. Since Cyprus has a veto over that decision, the embargo has stuck. The Europeans should now be pressing the Greek-Cypriots to give way over the embargo. Freezing part of the negotiations with Turkey will not help solve that dispute. It would be a catastrophic geostrategic failure if Europe and the West were to turn away Turkey, the exemplar of Muslim democracy, because of a small, bolshy Mediterranean island. © 2006 .  About sponsorship Financial centres Think local Dec 13th 2006 From The Economist print edition Dubai s dream of creating a global financial hub needs some local magic SINCE dealers first gathered in the fug of London s coffee houses and under the fabled buttonwood tree in lower Manhattan, the world s great financial centres have built their capital markets and reputations over centuries, one trade at a time. Now along comes an upstart (perched on a tiny patch of Middle Eastern desert, no less) daring to suggest it wants to join them almost overnight. That is the fuel dispenser vision of Dubai, a thriving emirate on the edge of the Persian Gulf that aims to create a worl fuel dispenser fuel dispenser