RU2721016C1 - Apparatus for inputting and extracting equipment - Google Patents

Abstract

FIELD: chemistry; oil, gas and coke-chemical industry.

SUBSTANCE: invention relates to chemical and/or oil and gas industry, namely to devices for input and extraction of measuring equipment in tanks and pipelines under pressure and/or high temperature. Device includes a branch pipe with a through channel connected to a reservoir or a pipeline, a lock chamber equipped with a radial seal, and an external flange providing external fixation of the equipment. Bypass channel of branch pipe is made with variable diameter with conical transition. Part of passage channel with larger diameter, which is a gate chamber, is located on the side of external flange. Branch pipe is connected to vessel or pipeline by inner flange of smaller diameter than diameter of outer flange. Radial seal is sawed off in the form of at least one self-sealing collar sealing on the side of the vessel or pipeline and installed in the sluice chamber to increase its flow diameter. Number of serially installed self-sealing cups and axial length of sealing section of each self-sealing collar are sufficient to ensure sealing of all elements of equipment passing through it.

EFFECT: proposed device for input and removal of equipment is simple and reliable in manufacturing, maintenance and repair, while allowing to work in aggressive media.

4 cl, 3 dwg

Description

The proposal relates to the chemical and / or oil and gas industry, in particular to devices for introducing and removing measuring equipment into tanks and pipelines that are under pressure and / or with high temperature.

A known adapter (patent for PM RU No. 129182, IPC F16K 3/08, F16L 23/02, published on 06/20/2013 in Bull. No. 17) containing a passage channel, a large flange with holes for connecting elements and a small flange with blind holes for connecting elements, moreover, the passage channel has a variable diameter, part of the passage channel is conical, and it can be equipped with a valve made in the form of a check valve or fitting.

The disadvantages of this device are, in the absence of a valve, the adapter cannot provide input and removal of equipment under pressure and / or with high temperature, and if there is a valve, it cannot enter equipment without removing a valve or gate, which also excludes the possibility of working under pressure and / or high temperature .

The closest is a device for input and extraction of pressure equipment (patent for PM RU No. 173138, IPC G01F 15/14, published on 08/14/2017 in Bull. No. 23), containing a pipe mounted on the pipeline, shutoff valves, airlock with a valve a pressure relief and a loading hole made with a radial seal, a device for axial movement of the equipment, and in the loading hole of the airlock is installed with the possibility of axial movement of the tubular probe with a flange that allows external mounting of the equipment, and the device for axial movement of the equipment is made with the possibility of impact on tube probe flange.

The disadvantages of this device are the complexity of manufacturing, maintenance and repair due to the large number of complex precisely mating parts, while working with aggressive media, a thin-walled tube probe can quickly fail due to corrosion or mechanical stress by abrasive particles in a tank or pipeline.

The technical task of the invention is the creation of a simple and reliable in the manufacture, maintenance and repair of the design of the device for input and extraction of equipment that allows you to work in aggressive environments.

The technical problem is solved by a device for input and extraction of equipment, including a pipe with a passage channel connected to a tank or pipeline, a lock chamber equipped with a radial seal, and an outer flange that allows external fastening of the equipment.

New is that the passage channel of the pipe is made of variable diameter with a cone-shaped transition, and the part of the passage with a large diameter, which is a lock chamber, is located on the side of the outer flange, and the pipe is connected to the tank or pipe by an inner flange of a smaller diameter than the diameter of the outer flange, the radial seal is sawn in the form of at least one self-sealing sleeve, sealing on the side of the tank or pipe and installed in the lock chamber to increase its bore diameter, and the number of self-sealing lips installed in series and the axial length of the sealing section of each self-sealing sleeve are sufficient to ensure that all items of equipment passing through it.

Also new is the fact that the self-sealing cuff in the tapering part is reinforced with a spring ring.

Also new is the fact that the nozzle is prefabricated with the possibility of disconnecting a lock chamber equipped with a radial seal, while the lock chamber can be made into a assembly consisting of identical elements with one corresponding self-sealing cuff.

In FIG. 1 shows a diagram of a device with a partial longitudinal section in the absence of equipment.

In FIG. 2 shows a diagram of a device with a partial longitudinal section through the passage of equipment (level gauge, pressure sensor, temperature sensor, etc.).

In FIG. 3 shows a diagram of a device with a partial longitudinal section through the passage of the traction element (rod, tube, cable or the like) of the equipment.

The device for input and extraction of equipment 1 (Fig. 2 and 3) includes a pipe 2 (Fig. 1) with a passage channel 3 connected to a tank or pipe (not shown), a lock chamber 4, equipped with a radial seal 5, and the outer flange 6 providing the possibility of external fastening (not shown) of equipment 1. The passage channel of the nozzle is made of variable diameter d1 and d2 with a conical transition 7, and the part of the passage channel with a large diameter d2, playing the role of a lock chamber 4, is located on the side of the outer flange 6, and connected to the tank or pipe by an inner flange 8 (Fig. 2) of smaller diameter D1 than the diameter D2 of the outer flange 6. The radial seal 5 (Fig. 1) is cut in the form of at least one self-sealing sleeve 9, which is sealed from the side of the tank or pipeline and installed in the lock chamber 4 to increase its bore diameter. Empirically determine the number of self-sealing cuffs 9 sequentially installed and the axial length H1 (Fig. 1) of the sealing section of each self-sealing cuff 9, which are sufficient to ensure sealing of all elements of equipment 1 (Fig. 2) (H2 distance for the equipment 1 itself - FIG. 2, the distance H3 for the traction element 10 - Fig. 3) passing through the cuff 9 (Fig. 1). With equipment diameters of more than 25 mm, each self-sealing sleeve 9 (Fig. 3) in the tapering part can be reinforced with a spring ring 11.

For ease of maintenance, the nozzle 2 (Fig. 1) is made prefabricated with the possibility of disconnecting (by thread, using flanges, press fit or the like - not shown) a lock chamber 4 equipped with a radial seal 5. A lock chamber 4 can be manufactured (using thread, flanges, press fit or the like - not shown), consisting of identical elements with one corresponding self-sealing sleeve 9 for the convenience of replacing a failed corresponding sleeve 9.

Structural elements and technological connections that do not affect the operability of the device, in FIG. 1, 2 and 3 are not shown. All used joints and flanges (including flanges 6 and 8) are manufactured and selected for existing flanges of the tank or pipeline and equipment 1.

The device operates as follows.

The pipe 2 with the inner flange 8 (Fig. 3) is connected via holes 12 to the flange (not shown) of the container or pipe (not shown with bolts, studs, nuts, etc.) which, during operation, are subject to high pressure from the inside ( more than 0.1 MPa) and / or temperature (above 45 ° C). In the passage channel 3 (Fig. 1), the necessary equipment 1 (Fig. 2) is inserted from inside to outside, which unloads from the center the self-sealing cuffs 9 of the radial seal 5, which, due to the pressure in the container or pipeline and / or the elasticity of the cuffs 9 themselves (at the presence and using a spring ring 11 - Fig. 3) are hermetically pressed against the outer surface of the equipment 1 (Fig. 2).

Further, the equipment 1 is lowered on the traction element 10 (Fig. 3) in the required installation interval in the tank or pipeline. In this case, the self-sealing cuffs 9 due to the pressure in the container or pipeline and / or the elasticity of the cuffs 9 themselves (if present and with the help of the spring ring 11), the traction element 10 is tightly pressed to the outer surface (Fig. 2). Then the flange (not shown) of the traction element 10 is fixed on the outer flange 6 using holes 13 (bolts, studs, nuts or the like are not shown).

When removing equipment 1 (Fig. 2) for repair, replacement or research, the passage through the self-sealing cuffs 9 of the traction element 10 (Fig. 3) and equipment 1 (Fig. 2) occurs in the reverse order. Until fully recovered, see FIG. 1. At the same time, the self-sealing cuffs 9 constantly seal the inner space of the lock chamber 4, preventing the pressure and / or temperature from escaping out of the tank or pipeline. If it is not intended to further lower the equipment 1 (Fig. 2), the outer flange 6 (Fig. 1) is provided with a plug or a locking element (not shown) to reduce the load on the radial seal 5. Since all structural elements are simple to manufacture and have sufficient overall dimensions , then this device is well-proven when working with high pressure (more than 15 MPa), temperature (more than 120 ° C) and with an aggressive environment (acid, sulfur oil, etc.).

The proposed device for input and extraction of equipment is simple and reliable in the manufacture, maintenance and repair, while it allows you to work in aggressive environments.

Claims (4)

1. A device for input and extraction of equipment, including a pipe with a passage channel connected to the tank or pipe, a lock chamber equipped with a radial seal, and an outer flange that allows external fastening of the equipment, characterized in that the pipe passage channel is made of variable diameter with a cone-shaped transition, and the part of the passageway with a large diameter, which is a lock chamber, is located on the side of the outer flange, and the pipe is connected to the tank or pipe with an inner flange of a smaller diameter than the diameter of the outer flange, while the radial seal is cut in the form of at least one self-sealing sleeve, sealing on the side of the tank or pipeline and installed in the lock chamber to increase its bore diameter, and the number of self-sealing cuffs installed in series and the axial length of the sealing section of each self-sealing cuff are sufficient ensure the sealing of all equipment items passing through it. 2. The device for input and extraction of equipment according to claim 1, characterized in that the self-sealing cuff in the tapering part is reinforced with a spring ring. 3. A device for input and extraction of equipment according to claim 1 or 2, characterized in that the pipe is prefabricated with the ability to disconnect a lock chamber equipped with a radial seal. 4. A device for input and extraction of equipment according to claim 3, characterized in that the lock chamber is made of a team consisting of identical elements with one corresponding self-sealing cuff.

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