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Method for dispensing a fluid medium

A technology for fluid medium and to-be-distributed, applied in the direction of volume measuring instruments/methods, chemical instruments and methods, liquid/fluid solid measurement, etc., which can solve problems such as distorted results, shock or vibration that are not accurate enough to achieve accurate distribution and avoid intermediate mixed effect

Active Publication Date: 2014-09-03
PROMERA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Said measuring systems, which work according to the Coriolis principle, however, are often inaccurate in rough industrial operation, in particular due to shocks or vibrations, or falsify the results in production operation, since the system has to be electronically or software-tested. smoothing or filtering

Method used

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  • Method for dispensing a fluid medium
  • Method for dispensing a fluid medium
  • Method for dispensing a fluid medium

Examples

Experimental program
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Embodiment Construction

[0021] figure 1 A dispensing device with a downstream mixer 25 is shown for the method according to the invention. The dispensing process starts by filling the dispensing cylinder 2 with a certain filling quantity, which is greater than the quantity to be dispensed. In this case, the fluid to be dispensed is conveyed into the working chamber A via the filling valve 11 via an external pressure source, for example in the form of a pump 21 , or by means of the dispensing device 2 itself. The dispensing device 2 has a cylinder Z which is connected to the cylinder base 1 . Arranged in the cylinder Z is a piston 3 which is driven by a piston-cylinder system 5 , 6 via a piston rod 4 . The position of the piston 5 of the piston-cylinder system 5 , 6 is determined by means of a displacement sensor 7 . A precise position of the piston 5 can thus be preset by means of the control valve 8 , whereby the piston 3 of the dispensing device, which is rigidly coupled to the control valve, ca...

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Abstract

The invention relates to a method for dispensing a fluid medium by means of a dispensing device in the form of a piston pump having a cylinder (Z) and an adjustable piston (3), wherein the cylinder (Z) and the piston (3) form a working space (A), characterized in that in a first method step a specific filling quantity of the fluid medium is conveyed into the working space (a), wherein the filling quantity is greater than the predetermined quantity to be dispensed, and in that in a further method step the piston (3) reduces the working space (A) such that in the working space (A) the quantity to be dispensed remains, wherein at the same time a valve (18, 18') is opened, so that the gas volume separated in the working space (A) and / or the excess fluid medium can flow through the piston out of the working space (A), wherein for this purpose the piston (3); has at least one axially extending passage channel (17, 17') that is connected to a return line (19, 19'), and at least the controllable valve (18, 18') and / or a check valve is arranged in the passage channel (17, 17') and / or the return line (19, 19').

Description

technical field [0001] The invention relates to a method for dispensing a fluid medium by means of a dispensing device in the form of a piston pump having a cylinder and an adjustable piston, wherein the cylinder and the piston form a working chamber. Background technique [0002] In various fields of industry, such as rubber manufacturing, food processing, etc., mixtures are produced in batch processes in which various liquids are dispensed to mixers. The mixer should mix the solids and liquids into a homogeneous mass during mixing. In order to produce reproducible agglomerates, the manufacturer needs one or more precisely dispensed liquids or fluids as additives in addition to the weighed solids, in order to then later in the process give the final product to be manufactured its specificity. nature. [0003] Weighing systems are also known for liquids to be dispensed. Here the different fluids, in particular liquids, are successively dispensed via separate feed lines in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F11/02G01F22/02B01F15/04G01F22/00G01F11/00G01F15/00
CPCG01F11/006B01F15/0462G01F11/023G01F22/00G01F22/02G01F15/003G01F11/029G01F15/043Y10T137/0329Y10T137/0352B01F35/8821B01F35/8822G01F11/024
Inventor 托马斯·许策
Owner PROMERA
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