RU204944U1 - CHANGEOVER VALVE FOR PNEUMATIC FEEDING SYSTEMS - Google Patents

Abstract

The proposed utility model can be used in industrial aquaculture and is designed to change the direction of movement of the air-feed mixture through a pneumatic feed line used in feeding systems for aquatic organisms. at an angle to the axis of the main channel, pivotally mounted in the hollow body, at the junction of the outlet, a damper, characterized in that in the lower part of the main channel from the side of the rotary damper, which is not fixed with a hollow body, an actuator with a stem is mounted under the damper before the outlet with the possibility of moving the stem into the cavity of the main channel and slightly opening the damper, while the damper is installed with the possibility of closing the main channel due to the air flow and lowering to the initial position under its own weight. The device allows you to simplify the design and close the outlet without the use of any actuator.

Description

The proposed utility model can be used in industrial aquaculture and is designed to change the direction of movement of the air-feed mixture through a pneumatic feed line used in feeding systems for aquatic organisms.

Known device: knee fittings for transporting gas or liquid and a rocker valve [Knee fittings for transporting gas or liquid and a rocker valve. Utility model patent RU 2562325C2, published 09/10/2015], which has a bushing with one inlet and at least one outlet. The lead-in between the inlet and outlet of the elbow has a deviation along the lead-in length. In the zone of deflection of the lead-in bend, the cross-section of the bend in several consecutive sectors again passes from an almost circular or oval cross-section through several flattened on the inner side of the lead-in bend into an almost circular or oval cross-section. In the zone of the flattened section of the input, the section contour has several arc segments passing into each other. There are fittings, in particular a rocker valve containing at least one elbow.

The disadvantage of this device is that in order to redirect the flow, it is necessary to manually rotate a flywheel with a screw rod, which pulls the rod with a locking device attached to it.

Known double-sided flap valve [Internet resource: Company "AgroPromex" https://agropromex.ru/texnologicheskoe-oborudovanie/samotechnoe-oborudovanie/klapan-perekidnoj-dvuxstoronnij-s-elektroprivodom-rs20-kd.html, access date: 29 ]. The valve consists of a hollow body with one inlet and two square outlets. A slewing bar is located inside the body, which is driven by a worm gear motor. In the extreme positions of the bar, either the left or right exit is blocked.

The disadvantage of this device is that the housing can be placed exclusively in the position: entrance from above, outputs from below. Overlapping of both the left and right exits is carried out by means of a geared motor.

The closest known analogue is a one-way transition valve [Internet resource: AgroPromex Company https://agropromex.ru/texnologicheskoe-oborudovanie/samotechnoe-oborudovanie/klapan-perekidnoj-odnostoronnij-s-elektroprivodom-rs-ko.ko. access: 09/29/2020]. The valve consists of a hollow body with a single inlet and a circular outlet. The hollow body has a branch located at an angle to the axis of the hollow body. Inside the body there is a rotary damper, which is driven by a worm gear motor. In the extreme positions of the damper, either the outlet from the hollow body or the outlet is closed.

The disadvantage of this device is that the overlap of both outputs is carried out using a geared motor.

The technical result of the proposed device is to simplify the design and overlap the outlet without the use of any drive.

The technical result is achieved by the fact that the proposed device includes a hollow body with a main channel open at the ends, and a branch, mounted at an angle to the axis of the main channel, hingedly mounted in the hollow body, at the junction of the branch, a damper. In the lower part of the main channel from the side of the rotary damper, which is not secured with a hollow body, under the damper before the outlet, an actuator with a rod is mounted, with the possibility of moving the rod into the cavity of the main channel and opening the damper, while the damper is installed with the possibility of closing the main channel due to the flow air and lowering to the initial position under its own weight.

FIG. 1 shows a general view of the device with a closed outlet.

FIG. 2 shows a general view of the device with an extended actuator rod and a raised flap.

FIG. 3 shows a general view of the device with a blocked main channel and an open branch.

The device consists of a hollow body 1, square section, and having an inlet and outlet. Outlet 2, located at an angle to the axis of the hollow body 1. The outlet opening is closed by a rotary damper 3, which is movably fixed on the inner side of the hollow body 1. From the side of the rotary damper 3, which has no fastening with the hollow body 1, an actuator is mounted under the damper in the hollow body 1 with stem 4.

The device cuts into a pneumatic feed line of any section using the appropriate transition pipes.

The device works as follows. The pneumatic feed line in which the device is installed is supplied with air under pressure. The actuator stem 4 extends, raising the flap 3 (see Fig. 2). The air flow raises the shutter 3 to the position of overlap of the main channel and presses the shutter 3 against the inner wall of the hollow body 1 (see Fig. 3). The actuator stem 4 moves to the initial position (see Fig. 1). Further, feed is fed into the air stream, which is directed to outlet 2 to the feeding point. After the required amount of feed has been dispensed at the corresponding feeding point, the feed is stopped, after which, the supply of air under pressure is stopped and the damper 3, under its own weight, is lowered to its initial position (see Fig. 1). Further, if it is necessary to supply feed to the feeding point located to the right along the pneumatic feed line, the drive with the rod 4 does not raise the shutter 3 and the feed, together with the air flow under pressure, is transported through the hollow body from left to right.

Claims (1)

A cross-over valve for pneumatic feeding systems, including a hollow body with the main channel open at the ends, and a branch mounted at an angle to the axis of the main channel, hingedly installed in the hollow body, at the junction of the branch, a valve, characterized in that in the lower part of the main channel channel from the side of the rotary damper, which is not secured with a hollow body, under the damper before the outlet, an actuator with a rod is mounted, with the possibility of moving the rod into the cavity of the main channel and opening the damper, while the damper is installed with the possibility of closing the main channel due to the air flow and lowering into starting position under its own weight.

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