SU1442914A1 - Apparatus for determining degree of aerosol formation of flexible materials - Google Patents

Abstract

The invention relates to the study of the physical properties of both flexible materials and environmental properties, in particular, devices for determining the wear resistance of textile materials. The purpose of the invention is to increase the efficiency of capture of degradation products generated by the material under study. The device includes means for supplying clean air, made in the form of a cylinder located concentrically to the working elements of the rotor weary and combined with the axis of its rotational drive. The cylinder outlet is coupled to the filter by means of a sealed bearing. The cylinder outlet is located opposite the channel inlet for collecting aerosol degradation products. 2 Il. SE (L

Description

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The invention relates to the field of studying the physical properties of both flexible materials and environmental properties, in particular, devices for determining the wear resistance of textile materials.

The purpose of the invention is to increase the efficiency of capture of degradation products generated by the material under study.

FIG. 1 shows the proposed device, a vertical section j of FIG. 2 shows section A-A in FIG. one.

The device contains a base 1, a sealing chamber 2, in the inner part of which there is a three-bar rotary weary 3 in the form of a squirrel wheel (its working element is shown), the main flange

4 which in the central part has a round window and is attached to the flange

5 hollow shaft 6, the right part of which is using ball bearings

 7 and 8 and the cap 9 is attached to the base 1. In the cap 9 on the side of the rotary teddy 3, there is also a set of 10.

In the middle part of the hollow shaft 6, gear 11 is rigidly attached, which is engaged with gear 12, whose driven shaft 13 is connected to an electric wire (not shown). The left part of the hollow shaft 6 through a fixed hollow pipe 14, which is free (sliding connection) covers the shaft 6, is connected to the filter box 15 for cleaning the air. The coupling of the nozzle 14 with the shaft 6 is made through the gland 16, secured in the node 17, which is rigidly attached to the gear 11.

Opposite to the free (right) side of the rotor weary 3 in the chamber 2 a window 18 is installed, to which an air pump (not shown) is connected and in which the filter element 19 is installed (for gravimetric estimation of the amount of aerosols) or the aerosol analyzer receiving tube. The loading mechanism of sample 20 is not shown.

The device works as follows.

Sample 20 is mounted on a rotor weary 3, while turning on an electric rotation drive and simultaneously an air pump. As a result

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Gear 12 begins to rotate, dragging gear 11, hollow shaft 6, and rotary tedger 3 into rotation. Sample 20 wears out and degradation products are released in the inner zone of the tedator 3. Clean air flow cleaned in the box: filter 15, under the action the pump enters the inner part of the hollow shaft 6 (arrow N), then directly into the axial zone of separation of degradation products (N 2, N j) and, finally, degradation products (arrow N) are caught by filter element 19 (the case of the gravimetric method ki) or sent to an aerosol analyzer.

In this case, the external polluted air does not enter the internal cavity of the shaft by biting the working cavity of chamber 2, since the sliding connection of shaft 6 and nozzle 14 is sealed with the gland 16, and accordingly the interface of shaft 6 with the base 1 is sealed with the help of the gland 10.

The device makes it possible to more accurately determine the degree of aerosol formation of textile materials.

Claims (1)

Apparatus of the Invention A device for determining the degree of aerosol formation of flexible materials, comprising: a base; a sealed chamber mounted thereon; with a channel for collecting aerosol degradation products; a rotary tire that is arranged therein; made in the form of a squirrel wheel; means for supplying clean air consisting of a filter. and an air duct, the outlet of which is facing the side of the rotor wearr, characterized in that, in order to improve the determination accuracy by improving the efficiency of the capture of products Destruction, the means for supplying clean air is made in the form of a cylinder located concentrically with the working elements of the rotor fatigue and aligned with the axis of its rotational drive, while the cylinder inlet is coupled to the filter by means of a sealed bearing; degradation products. Pub.i 9m 2