Übersetzung für "Membrandosierpumpe" in Englisch

The essential features of the applied membrane dosage pump are:

As a result, the diaphragm dosing pump drive is controlled on the basis of the values recorded by the sensor.

The ecodos® mechanical diaphragm metering pump from LEWA is suitable for all pumping and metering tasks in the low-pressure range.

LEWA ecosmart is an innovative, compact and multiplexable diaphragm metering pump at a smart price.

The components may be metered for example by means of graduated dropping funnels or by means of a piston and/or diaphragm metering pump or any other metering unit.

At the head of a high pressure column (A) filled with 15 mm. Pall rings, there is dosed in, with the help of a membrane metering pump, a wine containing 8.7% by weight of ethanol and warmed to 35° C. in an amount of 10 kg./hour via pipe (1).

The invention relates to a diaphragm dosing, metering or proportioning pump having a dosing chamber, which is provided with an inlet and a pressure-side outlet, as well as a dosing diaphragm operated by a stroke drive, and having a delivery chamber upstream of the dosing chamber and which is provided with a suction connection for the medium to be dosed and a pressure connection, as well as a delivery diaphragm operated by a stroke drive.

SUMMARY OF THE INVENTION The invention uses a diaphragm dosing pump, in which the problem of imprecise dosing is solved in a constructionally simple way.

In the case of the diaphragm dosing pump of the aforementioned type, the invention solves the problem of imprecise dosing by having the delivery chamber connected by means of its pressure connection to a receiving container, which is connected on the outlet side to the inlet of the dosing chamber.

If the receiving container has an adequate fill quantity, it is also possible to remove the dosing fluid storage tank from the diaphragm dosing pump, e.g. for replacing a full by an empty storage tank without having to interrupt the dosing process.

As degassing in the dosing chamber is substantially avoided through the provision of the receiving container, the flow quantity determined by means of the measuring tube precisely corresponds to the liquid quantity actually dosed by the diaphragm dosing pump via the dosing chamber outlet.

Advantageously, the control device has a unit for giving a nominal value fixing the delivery volume per unit of time, a unit for determining the actual value and a regulator or controller for aligning or matching the nominal and actual values, so as to be able to regulate the diaphragm dosing pump in operation to a nominal value, while taking account of the actual value.

Ethanol condensed out is pumped back into the reactor via the diaphragm metering pump at the rate at which condensate is formed in the cooler.

A diaphragm dosing pump according to claim 1, wherein: the stroke drive is a stepping motor.

A self-venting valve is provided for the discharge of the gas volumes formed during delivery in the dosing chamber of the diaphragm dosing pump.

In a process for the monitoring and automatic early fault detection in valves, in particular intake and/or pressure valves, of an oscillating displacement pump, in particular a membrane dosing pump, it is provided that the increased operating noise produced by a leaky valve due to the back-flow of the fluid being pumped in the closed state of the valve is used as a measure for the leakiness of the valve by the generated effective signal level being monitored continuously and compared to a reference signal level formed from the operating noise of the pump with an intact valve, where, at a predefined level deviation or change due to increased operating noise, early fault detection is triggered.

By means ofa diaphragm metering pump wine heated to 35° is introduced into the upper end of the reactor in an amount of 10 to 12 liters per hour, said wine being of the type Mueller-Thurgau, Riesling, Morio-Muscat, Late Burgundy, Merlot or cider or fruit wine.

In counterflow, with a second diaphragm metering pump carbon dioxide heated to 35° C. and compressed to a supercritical pressure of 90 bar is introduced into the lower end of the reactor column in an amount of about 6 kg/h.

Liquid sulfur trioxide was metered in through a diaphragm pump into the gas phase above the melt, which was stirred at a speed of 200 rpm, at a rate of 70 ml/h.

It includes all definitions for a diaphragm metering pump in industrial use in terms of its design, construction, performance and acceptance test.

Here, we set technological and qualitative standards: Each ecoflow diaphragm metering pump is equipped with the patented DPS diaphragm protection system and produced in Germany.

The latex is pumped by a diaphragm metering pump at a mass flow of 15 kg/h into the cylinder (zone 1) of a tightly intermeshing, counter-rotating twin-screw extruder.

A diaphragm dosing pump according to claim 17, wherein: the unit for determining the actual value is connected to the at least one sensor.

The LEWA ecodos® diaphragm metering pump with its sanitary/hygienic design is the ideal pump for food and pharmaceutical products in the low-pressure range.