Suction-type liquid measuring device and method of feeding molten fluid utilizing same
AssigneesHiroshima Aluminum Industry Co., Ltd., Hanano Corporation
InventorsMakoto Matsuura, Hiroshi Masaki, Shinya Naitou, Hiroshi Yamagata
Life of this patent
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Abstract
An inlet/outlet pipe extending downward from a bottom face of a body for a ladle is bent at its tip end into an S-shape in an intermediate portion of the pipe, and its tip end is located at a level higher than that of the bent portion. When a negative pressure in the ladle body is increased, a height of range of a molten metal is increased before and after an occurrence of disturbance in the ladle body, so that the negative pressure in the ladle body is made balance with a weight of the molten metal. Thereby, the molten metal is measured and held at a constant volume in the ladle body.
Claims8
A suction-type liquid measuring device comprising:
- a vessel provided with a suction pipe extending from its top end and an inlet/outlet pipe protruding downward from its bottom end;
- means for creating a negative pressure connected to the suction pipe of the vessel;
- wherein the inlet/outlet pipe is bent at a right angle at an intermediate portion thereof such that the distal end portion of the inlet/outlet pipe extends along a straight line and is located at a level flush with the bent portion;
- whereby a pressure in the vessel is capable of being brought to a negative pressure to thereby suck a liquid from the inlet/outlet pipe so that the liquid is measured and held at a constant volume in the vessel using a balance between the negative pressure in the vessel with gravitational pull on the liquid;
- and
- wherein the height of the liquid is capable of being increased in the vessel when the negative pressure is increased in the vessel.
A suction-type liquid measuring device comprising:
- a ladle;
- a suction pipe in fluid communication with the ladle at one end and a vacuum-producing mechanism at another end;
- and
- an inlet/outlet pipe in fluid communication with the ladle at one end and having a tip end at its other end;
- wherein the vacuum-producing mechanism is configured to produce a particular negative pressure such that a measured volume of fluid is sucked into and held within the device by way of a balance between the negative pressure and the weight of the volume of fluid, the held volume of fluid having a height defined by the distance between an upper surface of the held fluid and a lower surface of the held fluid;
- wherein the inlet/outlet pipe is formed in a shape such that when the particular negative pressure is increased, the height of the fluid is also increased.
Dependencies are inferred from the claim text.