RU56616U1 - DEVICE FOR SAMPLING FROM OPEN FLOW OF A LIQUID - Google Patents

Abstract

The device relates to sampling liquids from open streams. It can be used to control the physical and chemical properties of liquids in any industry where representative sampling is required. The device for sampling from an open fluid stream consists of a L-shaped base, a conveyor with a float and a drive, a bucket, a sample collector, the conveyor in the upper part being additionally equipped with guides and an angular clamp, the bucket is equipped with a key and connected to the conveyor by a flexible connection. At the same time, an inclined cutter is mounted over the sample collector. The device for sampling from an open fluid stream provides an increase in representativeness of the sample by covering the entire thickness of the test liquid with a flexible bucket, and an inclined cutter mounted in the form of a perforated sheet allows you to reduce the sample by removing part of the selected material from the sample collector. This provides for the operation of the device with a small depth of flow by means of an angular clamp on the conveyor.

Description

The device relates to sampling liquids from open streams. It can be used to control the physical and chemical properties of liquids in any industry where representative sampling is required.

A device is known for proportional sampling of liquid from an open reservoir (Author's certificate SU No. 815572, IPC ³ , G 01 N 1/10, published. 23.03.81, Bull. No. 11) mounted above the liquid stream, containing a vertically mounted wheel with sampling vessels on both sides of the wheel rim, drive, swing-out swing hatch with opening.

A disadvantage of the known device is the low representativeness of the samples due to the coverage of not the entire thickness of the liquid, the inability to reduce samples and the complexity of the design.

A device for sampling liquids is known (Copyright Certificate SU No. 463026, IPC ³ , G 01 N 1/10, published. 05.03.75, Bull. No. 9), containing a L-shaped base, to which a conveyor supporting the upper end is articulated one bucket, float mounted on the lower end of the conveyor connected to the drive and level recorder. On

the base is equipped with a drum-type receiver. This device allows sampling fluid from the surface of the stream at a specific point in time.

A disadvantage of the known device is the low representativeness of the samples due to the coverage of only the surface of the test fluid and the inability to reduce samples.

The objective of a device for sampling from an open fluid stream is to enable sampling along the entire depth of a controlled fluid stream, as well as to reduce sampling.

This is achieved by the fact that the sampling device from an open fluid stream consists of a L-shaped base, a conveyor with a float and a drive, a bucket, a sample collector, the conveyor in the upper part being additionally equipped with guides and an angular clamp, the bucket is equipped with a key and connected to the conveyor flexible connection. At the same time, an inclined cutter is mounted over the sample collector.

Increasing the representativeness of the sample is achieved by covering the entire thickness of the liquid under investigation with a bucket on a flexible connection, and an inclined cutter allows you to reduce the sample by removing part of the selected material from the sample collector.

The device for sampling from an open fluid stream is illustrated in the drawing. Figure 1 shows the device, side view, figure 2 is the same, top view.

The device for sampling from an open fluid flow consists of an L-shaped base 1, to which the conveyor 2 is pivotally connected with its upper end, equipped with a drive 3, a float 4 and an angular clamp 5, a sample collector 6 with an inclined cutter 7. Conveyor 2 carries a bucket through flexible coupling 8 9 key 10 in the guides 11.

The described device for sampling from an open fluid stream works as follows.

The drive device 3 transmits the movement of the conveyor 2 in the direction of fluid flow. The bucket 9, being with the conveyor 2 on a flexible connection 8, the length of which is adjusted along the depth of the channel, slipping off the guides 11 located in the upper part of the conveyor enters the fluid stream and is filled, sinking to the bottom. At this moment, the drive stops for a short time, and the flexible connection simultaneously eliminates twisting of the bucket in the stream. The float 4 holds the device on the surface of the stream. After turning on the drive, the filled bucket 9 enters the conveyor 2 and enters the guides 11 with the key 10, which prevents the bucket from falling off the conveyor.

When the bucket 9 reaches the upper point of the conveyor 2, the accumulated volume of liquid is discharged into the sample collector 6, mounted on the base 1. To reduce the sample, an inclined cutter 7 is installed above the collector 6 in the form of a perforated sheet, which makes it possible to reduce the sample by draining (draining) its part back into the stream. Change

the angle of inclination of the cutter 7 provides a variation in the degree of reduction, up to its complete absence.

In the case of a small depth of flow of the controlled fluid, for the normal functioning of the device, an angle lock 5 is provided on the conveyor 2, guaranteeing such a maximum angle of inclination of the conveyor to the flow direction so that the bucket 9 is not braked by friction against the bottom.

The device for sampling from an open fluid stream carries out sampling along the entire depth of the flow of the test fluid, allows you to reduce the sample taken, which increases its representativeness.

Claims (1)

An open fluid flow sampling device consisting of an L-shaped base, a conveyor with a float and a drive, a bucket, a sample collector, characterized in that the conveyor in the upper part is additionally equipped with guides and an angular clamp, the bucket is equipped with a key and connected to the conveyor by a flexible connection while an inclined cutter is mounted above the sample collector.