SU887995A1 - Sampler - Google Patents

Description

(54) SAMPLIFIER

one

This invention relates to a technique for remote automatic sampling of gases in the surface layer of the atmosphere.

A device for sampling aerosols is known that is designed to determine the content of solid particles in a stream of gases containing dropping moisture 1. The device includes a centrifugal separator with a gas sampling tip and a swirler, and an inlet and outlet sleeves between which a filter is installed.

The drawbacks of the device are the complexity of the design and the impossibility of sampling remotely.

A gas sampler and an aerosol are known, which contain a pilot pilot, a variable volume chamber with a limiter and intakes, a locking device, and a trigger device 2.

The disadvantage of the device is low reliability.

The aim of the invention is to increase the reliability of operation.

f The goal is achieved by the fact that in a sampler containing a ball pilot, a variable volume chamber with a limiter and intakes, a locking device, a trigger device, the chamber is equipped with a piston installed inside and a sleeve installed outside the chamber above the intakes, the trigger device is made in the form of a pin, mounted pivotally and fitted with a hook and a tether fixed on it, while the attachment is fixed on the plate eccentrically, the locking device is made in the form of stops installed can be rotated in the chamber of variable volume and connected to the piston, while the piston is connected to the stops and the plate by means of flexible connections.

The drawing shows the proposed sampler, a General view.

5 The sampler contains a variable volume chamber I with piston 2 located in it with a sealing ring 3, a stop 4. The chamber 1 is made with intaking openings 5 and an emphasis 6 and is equipped with a movable outside

20 sleeve 7.

The release device is made in the form of a plate 8i installed with the possibility

turning and fitted with a hook 9 attached to it and an eccentrically reinforced control halyard 10 going to the operator. The locking device is made in the form of pivoting stops 11 mounted on the bracket 12 of the chamber 1. The pivoting stops 11 are in contact with the movable sleeve 7 and are connected by flexible links 13, for example cords having slack, at least in three points with the piston 2. Piston 2 is connected to the plate 8 by a flexible connection, for example, wire 14, terminated by a loop 15, put on the hook 9. The plate 8 is fixed to the bracket 16. A holding hatch 17 is attached to the piston 2; and to the sampler - the ball pilot 18.

The sampler works as follows.

Before sampling the porsch 2 by the loops 15 of the wire 14, they are placed on the hook 9 of the plate 8. The sleeve 7 is installed above the intake openings 5 on the pivoting stops 11. Then the sampler is raised to a predetermined height with the attached pilot ball 18. At the same time provided with a holding file length 17. When taking a sample, the operator does not have a control file 10. The eccentric fastening of the control file 10 to the plate 8 causes it to rotate about an axis. With this, the hook 9 takes such a position that the loop 15 slides off it. Since the pistol 2 is kept at a constant height by the operator through the holding halyard 17, and the tiller ball pilot 18, having a lifting force, tends to rise upwards, the camera body 1 moves progressively relative to the driver 2. The volume of the camera 1 increases and fills With aerosol, i.e., the aerosol is sucked into chamber 1. When Porsch 2 moves to a position at which the slack of the springs 13 is fully selected, and the force from the spacing 2 begins to be transmitted through the springs 13 to the pivot stops 11, the latter turning Figure 7 and disengage from it. The sleeve 7 under the action of the force of gravity lowers until it stops 6 and closes the intake holes 5. Porschen 2 at the end

its movement sits on the limiter 4.

The sampler is reliable in operation, since the aerosols are sucked into the chamber due to the lifting force of the pilot ball, and not by special spring mechanisms. In the sampler there are no springs and electric pyrotechnic elements that require special electrical energy sources.

In addition, it can be used many times without replacing any parts.

The sampler is easy to operate and technologically advanced. It can be widely used for sampling aerosols in the surface layer of the atmosphere to determine its characteristics; and also for sampling in order to determine the composition of the aerosol when developing spray devices in agriculture using aviation to combat plant pests.

Claims (2)

1. USSR author's certificate number 628426, cl. G 01 N 1/24, 1978. 2. USSR author's certificate number 605149, cl. G 01 N 1/24, 1976.