RU186323U1 - Device for the selection of control doses of fluid - Google Patents

Abstract

The utility model is intended to verify the correct settings of the batch fluid dispenser in technological complexes of various composite materials production. In the proposed device, the auxiliary pipe for the selection of control doses is combined with the pipe for dispensing liquid into the mixer, while the auxiliary pipe is equipped with a connecting flange with the possibility of fixing the pipe for dispensing liquid. The fluid metering pipe has the ability to move vertically in a guide sleeve mounted on the mixer body. To fix the metering nozzle in the upper and lower position, the metering nozzle is equipped with radial pins. The proposed device improves the reliability of the operation of selecting control doses of components by eliminating uncontrolled leaks through a three-way shut-off valve. 4 ill.

Description

The utility model is intended to verify the correct settings of the batch fluid dispenser in technological complexes of various composite materials production.

In known installations for the preparation of compositions consisting of several components, including liquid, special devices for the selection of control doses when checking dispensers are not provided. Typically, the selection of control doses is carried out before each start-up of the technological complex after instrumental adjustment of the dispenser to a given dose. In addition, during the start-up process, such an operation is performed if the chemical analysis of the resulting composition goes beyond the regulatory tolerance.

As a prototype, a device for selecting doses of a viscous liquid according to patent SU 1500902 A1 was selected, comprising a vertical pipe equipped with shutoff valves and a receiving container. The disadvantages of the invention is that the device is provided only for highly viscous liquids and has a rather complicated structure. When dispensing low-viscosity liquids, fluid leaks through the plug of the three-way valve and through the gap between the seating surface of the annular container and the nozzle are not excluded.

The technical task of the proposed utility model is to increase the reliability of the control dose selection operation.

The technical result is achieved in that the auxiliary nozzle for the selection of control doses is combined with the nozzle for dispensing liquid into the mixer, while the auxiliary nozzle is equipped with a connecting flange with the possibility of fixing the nozzle for dispensing liquid on it. The fluid metering pipe has the ability to move vertically in a guide sleeve mounted on the mixer body. To fix the metering nozzle in the upper and lower position, the metering nozzle is equipped with radial pins.

The proposed utility model is schematically depicted in FIG. 1 and 2: 1 - auxiliary pipe; 2 - mixer; 3 - capacity for the selection of control doses; 4 - dosing pipe; 5 - guide bush; 6 - connecting flange; 7 - pin.

In FIG. 1 shows the device in the position assembled to perform the operation of dispensing liquid in normal operation on the mixer. In FIG. 2 shows a device for selecting control doses of liquid in a position assembled to perform a control dose selection operation.

The device for the selection of control doses of liquid consists of an auxiliary pipe 1 with a connecting flange 6. To the flange 6 with pins 7 is attached a dispensing pipe 4 installed in the guide sleeve 5, which is mounted on the body of the mixer 2.

When the dispenser is operating in the normal mode of dispensing liquid into the mixer, the dispensing pipe 4 is connected to the auxiliary pipe 1 by a connecting flange 6, forming a single line for supplying liquid from the dispenser to the mixer. The device is ready for the operation of dispensing liquid into the mixer.

During the operation of the selection of control doses, the dosing pipe 4 is lowered into the body of the mixer 2, and above it set the capacity for the selection of control doses 3.

Before the liquid dispenser operates in the normal dosing mode, it is adjusted to the mixer for the set dose weight by setting it on the controller of the control panel. After this, it is necessary to check the correctness of the setting in the operating mode of dosing the liquid. To perform the operation of selection of control doses, the dispensing nozzle 4 is disconnected from the connecting flange 6 and lowered along the guide sleeve 5 into the free cavity of the mixer 2. The pins 7 hold the dispensing nozzle 4 on the mixer cover. Then, a container for selecting control doses 3 is installed under the auxiliary pipe 1. This position of the device is shown in FIG. 2. Turn on the dispenser to select a given number of control doses. In the case of obtaining results that meet the requirements of the regulation, the technological complex is put into operation.

Thus, the proposed device improves the reliability of the operation of selection of control doses of components by eliminating uncontrolled leaks through a three-way shut-off valve and, accordingly, eliminates the increase in dosing error due to leaks.

The device was tested under the conditions of pilot production of NIIPM JSC with positive results.

Claims (1)

A device for the selection of control doses of liquid, consisting of an auxiliary nozzle, characterized in that the auxiliary nozzle for the selection of control doses is combined with the nozzle for dispensing liquid into the mixer, while the auxiliary nozzle is equipped with a connecting flange with the possibility of fixing the nozzle for dispensing liquid, which has the ability to move along vertical in the guide sleeve mounted on the mixer body, while for fixing in the upper and lower position the metering nozzle is equipped with with other pins.

Images