RU56615U1 - LIQUID SAMPLE DEVICE FROM PIPELINE - Google Patents

Abstract

The utility model will find application in the petrochemical, as well as in the mining industry for gas metering of wells. The technical result is to simplify the design and ensure a high degree of compliance of the components of the selected samples with the real components of the pumped medium. SUMMARY OF THE INVENTION The device includes a housing, a swirl mixer made in the form of a multi-auger screw, a flow collector, which is a funnel flattened in the diametric direction, and a sample receiver, made in the form of a U-shaped tube, one end of which is connected to the flow collector, and the other is in communication with the cavity corps. The outer section of the U-shaped pipe is equipped with a pipe communicating its cavity with the atmosphere through a locking element.

3 ill.

Description

The utility model relates to representative sampling tools and can be used in the petrochemical and mining industries for gas metering of wells.

Known sampling device slotted type DN 300, consisting of a housing, intake pipe, ribs and stabilizer (TU 4318-014-00136662-99, a copy is attached).

The disadvantage of this device is:

low degree of percentage correspondence of the constituent parts (phases) of the selected samples to the real constituent parts of the pumped medium due to the fact that most of the flow comes from the central zone, where the flow velocity is greater than at the periphery.

A sampling device with a conical tangential inlet of a fluid flow is also known, consisting of a cylindrical body, a central passage channel, an inlet conical surface of a flow swirl with tangential channels, a side sampling channel, an adapter, and a valve (Prospect NGDU Almetyevneft OAO Tatneft, rationalization No. 255 of 08/28/2001). Copy attached

The disadvantages of the device:

- a low degree of percentage correspondence of the constituent parts (phases) of the selected samples to the real constituent parts (phases) of the pumped medium because most of the flow into the tangential channels comes from the central zone, where the flow velocity is greater than at the periphery;

- significant pressure loss in the sampler area due to the small cross section of the passage channel.

The closest but technical essence to the proposed one is a device for sampling liquid from a pipeline, consisting of a housing, a swirl mixer, a flow collector and a sample receiver (AS.№1.280.464 IPC G 01 N 1/10, 1986).

Significant disadvantages of the device are:

- unsatisfactory degree of identification of components

selected samples with the real components of the pumped medium in the pipeline due to the fact that sampling is made from different elementary sections located at a certain distance in height, which does not exclude the flow of samples from the central zone more than from the peripheral one;

- the complexity of the design, therefore, the high cost of manufacturing the device due to the large number of components and parts included in it, significant operating costs due to the need to attract highly qualified specialists for commissioning and repair of the device.

The objective of the utility model is to create a device of simplified design with a high degree of correspondence of the components of the selected samples to the real components of the pumped medium.

This problem is solved by the proposed device, consisting of a housing, a swirl mixer, a flow collector and a sample receiver.

What is new is that the mixer-swirl is made in the form of a multi-auger screw installed on the side of the liquid movement, and the flow collector is a funnel flattened in the diametrical direction so that the arc length of the inlet part of the funnel in cross section decreases from the periphery to the center, and the inlet sections of its walls are bent towards the flow, with the end of the wall closer to the moving stream located deeper from the end of the other wall, the sample receiver is made in the form of a U-shaped tube, one end of which one with potokolovitelem from its small base, while the second communicates with the cavity of the housing to meet the parallel output to the direction of main flow, the outer portion of its branch located on the side potokolovitelya, provided coaxially fitting, to reporting its cavity with the atmosphere through the valve plug.

Figure 1 shows a General view of the proposed device in longitudinal section.

Figure 2 is a section along aa of figure 1.

Figure 3 is a section along BB of figure 2.

The device consists of a cylindrical body 1 (Fig. 1), equipped with flanges 2 and 3 and cuffs 4 and 5, a mixer-swirler 6, made in the form of a multiple feed screw, a flow collector 7, which is a funnel (truncated cone), oblate in the diametrical direction so that the arc length of the inlet of the funnel in cross section decreases from the periphery to the center

(figure 2). The inlet sections of the walls of the collector are bent towards the flow (Fig. 3), with the end of the wall closer to the moving stream located deeper from the end of the other wall. The recorder, with one open end facing the swirl mixer, and the other through the adapter 8 is connected to the sample receiver 9, made in the form of a U-shaped tube, the free end of which is inside the housing in the Central part of the section. The outer portion of the branch of the sample receiver through the adapter 10, the locking element 11 and the fitting 12 is connected to the atmosphere.

The device operates as follows.

From the pipeline (not shown in FIG. 1), the pumped medium enters the mixer-swirler 6, where it additionally acquires a rotational movement, while the layer-formed components of the pumped medium are mixed here.

Leaving the swirl mixer in a swirling state, part of the flow is directed to the flow collector 7, its diffuser section passes and subsequently enters the U-shaped tube 9, moves along it and finally enters the body cavity.

From this moment, she continues her movement with the main stream. The process of moving part of the volume through the scoop 7 and the U-shaped tube 9 is continuous, as long as the flow of the pumped medium flows through the pipeline. Sampling is carried out by opening the locking member 11 and the direction of the sampled fluid in the receiving container (not shown in figure 1).

The proposed device allows you to:

- to ensure a sufficiently high degree of correspondence of the components of the selected samples to the real components of the pumped medium in the pipeline due to intensive mixing in the screw channels of the layer-formed components of the medium and the direction of the mixed volume into the flow collector and its continuous movement along the U-shaped tube;

- to simplify the design: it lacks complex nodes and movable elements;

- reduce operating costs due to the fact that the operation of the device does not require the involvement of highly qualified specialists, as well as due to its high reliability and long service life.

Claims (1)

A device for sampling liquid from a pipeline, comprising a housing, a swirl mixer, a flow collector and a sample receiver, characterized in that the swirl mixer is a multi-auger screw mounted on the liquid side, and the flow collector is a funnel flattened in the diametrical direction so that the length of the arc of the inlet of the funnel in cross section decreases from the periphery to the center, and the input sections of the walls of its tan in the direction of flow, with the end of the wall being closer to the moving throttling the flow, the other wall is located deeper from the end, the sample receiver is made in the form of a U-shaped tube, one end of which is connected to the flow collector from the side of its small base, and the second is in communication with the body cavity in parallel with the exit to the direction of movement of the main stream, with the outside a section of its branch located on the side of the flow collector is equipped with a pipe coaxial to it, communicating its cavity with the atmosphere through a locking member.