SU1432375A1 - Liquid-sampling device - Google Patents

Abstract

The invention relates to a sampling technique and can be used in the chemical, petrochemical, food and other industrial sectors. The aim of the invention is to increase the reliability of the device and the reliability of the sample. The device contains an elastic sampling chamber with the main fitting and the valve, made in the form of an additional fitting with an elastic tube, interacting with rotary eccentrics. A roller clamp of the cable is placed in the main fitting, and a sleeve is installed coaxially to the fitting, which is interoperable with a roller clip and a valve. The device is automatically unlocked at. rise with of a given depth under the influence of the force of hydraulic resistance arising on the blades and transmitted to the sleeve, 2 or "(O

Description

one

This invention relates to a sampling technique and can be used in the chemical, petrochemical, food and other industrial sectors.

The aim of the invention is to increase the reliability of the device and the reliability of the sample.

Fig. I shows the device, a longitudinal section; in fig. 2 - the same, play - -.

ycTjfj ttiT, elastic elastic test; dummy.ru il with neck 2, At the end of the longitudinal displacement, there is a sleeve Zr in which rectangular windows 4 are placed, placed coaxially with the windows, filled in the main fitting

Rods 55 attached to roller clamp 6j made in the form of two rollers r, whose axes are fixed in the throat and displaced relative to the center of a circle, are missed into the bushings and fitting windows. On the opposite ends of the fixed blades 7, providing resistance. when the device is lifted or immersed, thus turning a certain angle, the rollers and moving the sleeve along the surface of the throat, fitting 8 is placed in the throat of the throat, which together with the elastic tube 9 and rotary eccentrics 10 are used to form valves : tricks are mounted on AXLES} fixed in the body of the HHj throats and their shanks are passed into the openings 11 of the throat with the ability to interact with the roller nip clamp (the cable 12z passing through the cavity of the elastic tube and sampling prugoy chamber; is attached to the shank 13 of the load 14 fixed to the bottom of the sampling elastic chamber.

The device works as follows.

Before sampling, the device is cocked into position, for which one hand holds the device at the base of the neck 2, and the second pulls the cable 12 out of the elastic sample chamber I as much as possible, then the cable is released, it is clamped by a roller clip formed by the rollers 6, and is fixed, and the elastic sampling chamber takes the form (Fig. 1 is a continuous line) of an inverted bowl.

Simultaneously, the shanks of the rotary eccentrics 10 interact with

the sleeve 3, through the windows 11 of which the rotary eccentrics are rotated at a certain angle, thereby closing the valve formed by the rotary eccentrics and the elastic tube 9 worn on the fitting 8 In this position, the device is lowered into the container for sampling, while the internal volume of the elastic sampling chamber is minimal .

The load 14 contributes to the immersion of the device, and the blades 7 prevent, strengthening the fixation of the cable and valve in; the closed state and, thereby, increasing the reliability of sealing the cavity of the elastic sampling chamber.

After the device is immersed to a predetermined depth (measured along a cable), it begins to be lifted, and the direction of the resistance force of the fluid acting on the blade 7 is reversed, and the blades through the rods 5 passed through the windows 4 turn the rollers of the roller clamp to some angle in the opposite direction than. release cable. At the same time, the rods interacting with the bushing .3, through its openings 11, move the bushing to the lower position, while the rotary eccentrics 10 turn at a certain angle, thereby opening the valve formed by the rotary eccentrics and the elastic tube 9s worn on the fitting 8 "

As soon as the valve opens, the resilient sampling chamber starts to rectify, fluid being drawn into its cavity, taking the form shown in Fig. 1 by a dotted line. Using a cable, the device is removed from a container (not shown) and the sampling chamber is freed from the enclosed sample by pressure.

Technical and economic effect from the implementation of the invention is to increase the reliability of the device, improve working conditions and safety when sampling aggressive liquids.

Claims (1)

Invention Formula A liquid sampling device comprising an elastic sampling chamber, an inlet valve and a cable, characterized in that, in order to increase the reliability of the device and the reliability of the sample, the sampling the chamber is made of a TIAR-shaped form and is provided with a neck with windows in the side surface and a sleeve with matching windows mounted coaxially on the throat with the possibility of axial movement, and the valve is designed as a fitting with an elastic tube and rotary eccentrics with shanks installed in the throat with the interaction with the elastic tube, the device is equipped with a roller clamp, placed in the neck and interacting with the cable, blades with rods, passed through the opening and sleeve windows and Connected with a roller clamp, as well as with a load attached to the sampling chamber coaxially with the fitting, while the shanks of the rotary eccentrics of the valve are kinematically connected with the sleeve, and the cable is passed through the fitting and locked at the point of load suspension,. -. , FIG. one FIG. 2