RU184471U1 - Device for pumping oil residues from the pipeline - Google Patents

Abstract

The utility model relates to the field of pipeline transport, namely, devices for pumping residual oil from pipelines. A device for pumping oil residues from the pipeline contains a housing, a pipe mounted in the housing and made with the possibility of vertical movement relative to its longitudinal axis, a manual feed drive designed to move the pipe in the housing, a rod installed in the pipe, a sealing assembly located at the lower end housing between the side walls of the housing and the pipe, and a flange spacer connected to the lower end of the housing and made in the form of a disk in the end outer surface of which is made at least e four threaded holes, in each of which is mounted a bolt choke the air inlet. The technical result achieved by the implementation of the utility model is to increase the efficiency of pumping oil residues from the pipeline by preventing the formation of vacuum in the cavity of the pipeline, which avoids stopping the pumping process. 4 s.p. f-ly, 3 ill.

Description

The technical field to which the utility model relates.

The utility model relates to the field of pipeline transport, namely, devices for pumping residual oil from pipelines.

State of the art

The prior art device is designed to remove liquid, in particular oil, from the bottom of the pipeline and can be used in the repair or dismantling of a section of the pipeline. The device comprises a pipe lowered at one end to the bottom of the pipeline and having a seal, a housing sealed to the pipeline, and a pipe on the housing. The housing can be equipped with a removable cover. The device can also be made comprising a screw located inside the pipe with the possibility of rotational motion and fixed in the housing from translational motion. The screw is connected through the gland seal with a device for its rotation. This device is located on the outside of the housing. On the screw is a nut connected to the upper end of the pipe. The pipe is secured against rotational motion and has at least one opening in the upper part. The lower end of the pipe is embossed, and the sum of the cross-sectional areas of the relief basins is equal to the cross-sectional area of the pipe. The technical result is an increase in the tightness of seals, ease of operation [RF patent RU 2151340, publ. 12/27/2003].

The disadvantage of this device is its complexity, since it is intended for use both after a pressure drop in the pipeline to atmospheric pressure, and at a working pressure in the pipeline. In addition, it is possible to vertically move the pipe during an emergency increase in pressure in the pipeline when the device is used without a removable cover.

The prior art device for pumping residual oil from a pipeline containing a housing, a pipe, a packing follower and a retaining ring, the stuffing box, safety rope, clamps, stops and eyebolts are additionally introduced, while in the working position the pipe is fixed with a safety rope installed on the outer surface of the pipe and covering it in the plane of the stops in the form of a half-loop and secured with the help of eyebolts on the flange of the packing follower with the possibility of adjusting the length of the safety rope using the mov [RF patent RU 139599 U1, publ. 04/20/2014].

The disadvantages of the above devices is that when pumping out the residual oil from the pipeline, additional holes are drilled for a gradual air inlet during the process of pumping out the residual oil in order to avoid creating a vacuum in the cavity of the pipeline from which the oil is pumped out, and, therefore, stopping the process of pumping out the remaining oil the pipeline.

Utility Model Essence

The technical problem to which the claimed utility model is directed is to ensure uninterrupted pumping of oil residues from the pipeline.

The technical result is to increase the efficiency of pumping oil residues from the pipeline by preventing the formation of vacuum in the cavity of the pipeline, which avoids stopping the pumping process.

The claimed technical result is achieved due to the fact that the device for pumping residual oil from the pipeline contains a housing, a pipe mounted in the housing with the possibility of vertical movement relative to its longitudinal axis, a manual feed drive designed to move the pipe in the housing, a rod installed in the pipe, a sealing assembly located at the lower end of the housing between the side walls of the housing and the pipe, and a flange spacer connected to the lower end of the housing and made in the form of a disk in the end bunk at least four threaded threaded holes are made on its surface, in each of which a fitting bolt for air inlet is installed.

In addition, in the particular case of the utility model, a stuffing box, a locknut, a load nut designed to tighten the stuffing box, and a nut fixing the manual feed drive to the rod are located on the upper end of the stem.

In addition, in the particular case of the implementation of the utility model, the nipple bolt for air inlet is made of high strength steel.

In addition, in the particular case of the implementation of the utility model, a copper ring is installed between the head of the fitting bolt and the flange spacer for hermetically closing the air inlet opening.

In addition, in the particular case of the implementation of the utility model on the disk surface of the flange spacer, at least eight evenly spaced through holes for mounting studs for the tight connection of the flange spacer with the housing are made.

Information confirming the feasibility of implementing a utility model

The essence of the utility model is illustrated by drawings, where in FIG. 1 shows a general view of a device for pumping oil residues from a pipeline; in FIG. 2 shows a front section of a device; in FIG. 3 shows three main types of flange spacers, where in the drawings the positions have the following notation:

1 - housing;

2 - pipe;

3 - a lock-nut;

4 - cargo nut;

5 - stuffing box;

6 - stock;

7 - manual feed drive;

8 - sealing unit;

9 - a nut;

10 - through threaded hole;

11 - flange spacer;

12 - hole for the stud;

13 - hairpin;

14 - pipeline;

15 - plunger of the pipeline.

A device for pumping residual oil from the pipeline contains a housing (1), in which a pipe (2) is installed with the possibility of vertical movement relative to the longitudinal axis of the housing, a nut (9), which fixes the manual feed drive (7), which is a flywheel, a lock nut ( 3) and a load nut (4) for preloading the gland assembly (5) in the form of a fluoroplastic seal on the stem (6), which is installed in the pipe (2), and this pipe (2) moves vertically in rotation of the manual feed drive (7) housing (1) until it stops in the bottom of the pipeline (14), seal the second unit (8), which serves to prevent the ingress of pumping fluid into the housing (1); a flange spacer (11) which is made in the form of a disk of a flat flange.

At least eight evenly spaced through holes (12) are made on the disk surface of the flange spacer (11) for fasteners in the form of studs (13), designed for a strong and tight connection of the flange spacer (11) with the housing (1) and the plunger (15) ) pipeline (14). The flange spacer (11) is preferably made of steel 09G2S. At least four through threaded holes (10) are drilled from the end outer surface through the body of the flange spacer (11). Nipple bolts (not shown in the drawings) are screwed into these holes for air inlet during the process of pumping out residual oil from the pipeline.

The fitting bolt for the air inlet is a hollow bolt with four holes on the sides through which the air inlet is. Preferred bolt sizes: diameter 16 mm, length 40 mm with a thread pitch of 1.5 mm (Ml6 × 40 × 1.5). Bolts are made of high strength steel. Between the head of the nipple bolt and the body of the flange spacer (11) put a copper ring (not shown in the drawings) for hermetically closing the through threaded hole (10).

The operation of the device is as follows.

Install a device for pumping oil residues from the pipeline to a plunger (15) for pumping out (by fixing the flange spacer (11) on a valve mounted on a branch pipe installed on a cut-off section of the pipeline (14) and secure it with standard fasteners - studs (13). The fitting bolts (not shown in the drawings) are screwed into the flange spacer (11).

Before mounting, the pipe (2) must be in its highest position and the valve is closed. You should check the reliability of the tightening of the fastening elements on the flange connections of the device for pumping out oil residues, after which you can begin to work.

It is necessary to open the valve, while oil, under the influence of residual pressure in the cut off section of the pipeline, will begin to be supplied through the pipe (2) to the internal cavity of the body (1) and then through the pipe to the pumping pipeline (not shown in the drawings). Rotating the manual feed drive (7) in the form of a flywheel clockwise, move the pipe (2) all the way into the bottom of the pipe of the cut-off section of the pipeline (14).

During oil pumping out, all “air vents” (not shown in the drawings) of the pipeline (14) are open, at this moment we unscrew the bolts (not shown in the drawings) on the flange spacer (11) for gradual air inlet during the process of pumping out oil residues for pressure equalization with atmospheric pressure to avoid creating a vacuum in the cavity of the pipeline (14), from which oil is pumped out, and, consequently, stopping the process of pumping oil residues from the pipeline (14). After the pumping units have stopped, it is necessary to raise the pipe (2) to the top. Thus, the use of the inventive device allows pumping to the "dry" pipeline.

Also, the use of the claimed device allows to exclude drilling holes for air inlet in the pipeline, and this is a defect in the pipeline and a violation of its integrity.

In addition, it is possible to insert a dipstick into one of the through threaded holes (10) to measure the level of oil residue in the cut off section of the pipeline (14). The probe is a flexible rod in intrinsically safe design with a length of 200 mm, made with a boss at the end.

Claims (5)

1. A device for pumping residual oil from a pipeline, comprising a housing, a pipe mounted in the housing and configured to vertically move relative to its longitudinal axis, a manual feed drive for moving the pipe in the housing, a rod installed in the pipe, a sealing assembly located on the lower end of the housing between the side walls of the housing and the pipe, and a flange spacer connected to the lower end of the housing and made in the form of a disk, in the end outer surface of which is made at least There are at least four threaded through holes, each of which has a nipple bolt for air inlet. 2. The device according to p. 1, characterized in that on the upper end of the stem there is a stuffing box, a locknut, a load nut designed to tighten the stuffing box, and a nut that fixes the manual feed drive on the rod. 3. The device according to p. 1, characterized in that the nipple bolt for air intake is made of high strength steel. 4. The device according to claim 2, characterized in that a copper ring is installed between the head of each of the nipple bolts and the flange spacer for hermetically closing the through threaded hole. 5. The device according to. 1, characterized in that on the disk surface of the flange spacer made at least eight evenly spaced through holes for installing the studs for a tight connection of the flange spacer with the housing.

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