RU22711U1 - HYDRAULIC TEST STAND FOR PUMP AND COMPRESSOR PIPES - Google Patents

Description

The invention relates to devices for testing tubing of various diameters and lengths for strength and tightness and can be used in the oil and gas industry.

A known stand for hydraulic testing of tubing, containing a frame with a rack and supports; mechanisms for lateral loading and unloading of pipes with supporting rollers mounted on a frame in the zone of loading and unloading of pipes; interchangeable technological pair of coaxial sealing units for the open ends of the pipes forming the crimping zone together: a movable sealing unit mounted on a carriage moving along the guides along the frame, with a mechanism for fixing the ends of the pipes, and installed

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counter-other, longitudinally motionless sealing assembly mounted on a stand and connected to the injection fluid supply system and gripping and fixing mechanisms of pipes from bending along the length and axial rotation, each with its own drive RF patent No. 728009, G 01 M 3/02 prior. 03/16/78, publ. 04/15/80, bull. No. 14. A disadvantage of the well-known stand for hydraulic testing of pipes is the unreliability of its operation during automatic unloading of the tested pipes, low productivity and high metal consumption due to the selected circuit circuit to the frame of the large longitudinal forces arising in the pipe cavity during hydraulic testing.

The closest in technical essence to the proposed utility model is a stand for hydraulic testing of pipes, containing a frame with a rack and supports; mechanisms for lateral loading and unloading of pipes with supporting rollers mounted on a frame in the zone of loading and unloading of pipes; interchangeable technological pair of coaxial sealing assemblies for the open ends of the pipes forming the crimping zone together: a movable sealing assembly mounted on a carriage moving along the guides along the frame, with a mechanism for fixing the ends of the pipes, and installed counter-other, longitudinally unsupported sealing assembly mounted on rack and connected to the injection fluid supply system and mechanisms for gripping and fixing the pipes from bending along the length and axial rotation, each with its own drive (RF patent .Ko 2097725, G 01 M 3/02, prior 03.07.95, published on 11.27.97 in bulletin No. 33).

The disadvantage of this closest to the proposed utility model stand for hydraulic testing of pipes is its low productivity, due to the sequential execution of loading, crimping and unloading of pipes in one working area, as well as its

high metal consumption due to the selected circuit circuit to the frame of the large longitudinal forces arising in the cavity of the pipe in the process of hydraulic testing.

The problem solved by the proposed utility model is to increase bench productivity and reduce its metal consumption.

The technical result achieved by the proposed utility model consists in creating three structurally separated technological zones at the stand: loading, crimping and unloading, ensuring simultaneous execution of all technological operations: loading pipes, crimping and unloading them, as well as removing crimping forces from the frame and increasing stability of the test pipe itself during crimping.

This is achieved by the fact that in the stand for hydraulic testing of pipes, which, like the one closest to it, contains a frame with a rack and supports; mechanisms for lateral loading and unloading of pipes with supporting rollers mounted on a frame in the zone of loading and unloading of pipes; interchangeable technological pair of coaxial sealing units for the open ends of the pipes forming the pressure zone together: a movable sealing unit mounted on a carriage moving along the guides along the frame, with a mechanism for fixing the ends of the pipes, and installed counter-other, longitudinally fixed sealing unit mounted on rack and associated with the injection fluid supply system, and the mechanisms for gripping and fixing the ends of the pipes from bending along the length and axial rotation, each with its own drive, additional A drive shaft supported on a rack and supports was additionally introduced with spaced crosses installed on it between the rack and supports, the ends of which include mechanisms for gripping and fixing pipes from bending along the length and axial rotation and correspond to certain structurally separated technological zones for simultaneous processing of pipes:

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loading, crimping and unloading, while on the other end of the shaft, opposite from the crosses, each technological zone has its own carriage with a sealing unit of the threaded ends of the pipes with guides fixed between the supports on the shaft, forming a single rotor assembly together with the shaft and crosses, the shaft which is connected with the drive of positional fixation of the technological zones of pipe processing, moreover, the sealing assembly that is stationary in the longitudinal direction is made with mechanisms for fixing the coupling ends of the pipes, and the receiving porn rollers - with drives for their rotation and installed with the ability to exit the zone of movement of the carriages.

In addition, for the best implementation of the device, namely, to simplify the fixation of the open ends of the pipes, the mechanisms for fixing the pipes of the technological pair of coaxial movable and fixed sealing units for the open ends of the pipes are made with the possibility of rotation around its axis from an individual drive.

The proposed utility model is illustrated by drawings, which depict:

FIG. 1 - general view of the stand for hydraulic testing of tubing;

FIG. 2 - section A - A in FIG. I;

FIG. 3 - breakout 1

FIG. 4 - view - B in FIG. 1;

FIG. 5 - section b - In figure 4.

The proposed stand for hydraulic testing of tubing (Fig. 1) contains a fixed frame 1 with a rack 2 and supports 3 and 4; mounted on it a mechanism for the transverse loading of pipes 5 with its receiving and supporting rollers 6 and a mechanism for lateral unloading of pipes 7 with its receiving and supporting rollers 8 (Fig. 2). A part of the receiving and supporting rollers 6 and 8 located between the supports 3 and 4 are made with the possibility of their exit from the loading zone of pipes I and

their unloading II. All pick-up rollers 6 and 8 are connected with drives for longitudinal movement of pipes 9.

The stand also contains a drive shaft 10, resting on the rack 2 and supports 3 and 4. At one end of the drive shaft 10 between the rack 2 and the support 3 are spaced apart crosses 11 and 12, the ends of which correspond to certain structurally spaced technological zones for simultaneous processing of pipes : loading I, crimping P and unloading III. At the ends of the crosspieces 11 and 12 there are mechanisms for gripping and fixing the pipes from bending along the length and axial rotation 13 (Fig. 1)

At the other end of the drive shaft 10, opposite from the crosspieces I and 12, in each technological zone for processing pipes I, II and III, there is a carriage 14 with the possibility of moving along the frame 1 between the supports 3 and 4 along its guides 15, mounted on the drive shaft 10 (fig.Z)

The drive shaft 10, together with the crosses 11 and 12 fixed on it and the guides 15 with the carriages 14 moved along them, form a single rotary unit 16 connected by its drive shaft 10 with a positional fixation drive for the pipe processing zones 17 located on the rack 2.

On each carriage 14 (Fig. 3), a movable replaceable sealing assembly 18 is installed, made in the form of a crimping plug and a mechanism for fixing the threaded ends of the pipes 19, connected with its drive 20 mounted on the rack 4 (Fig. 1).

The stationary sealing unit 21 (Fig. 4,5) is mounted on the rack 2 in the crimping zone II and is connected to the injection fluid supply system and comprises a rotary gripper 22 with a drive 23, a crimping head 24 and a locking mechanism for the coupling ends of the pipes 25 with the drive 26.

the zones are inclined guides 27 and 28 installed in the respective zones, and the stop 29 located on the rack 2 (Fig. 2).

The stand works as follows.

Pre-configure the stand for a certain diameter of the tested pipes, for which replaceable, in contact with the pipe, elements of the sealing units: stationary 21 and movable in the longitudinal direction 18. Adjust the receiving rollers 6 and 8 in height, maintaining the alignment of the sealing units 21 and 18. After that the lateral pipe loading mechanism 5 feeds the test pipe to the receiving and supporting rollers 6 to the loading zone I of the rotor assembly 16. The first pipe is gripped by the receiving and supporting rollers bis with the help of their drives For moving 9, it moves towards the carriage 14 located in the loading zone I. The sleeveless end of the pipe enters the movable sealing unit 18 located on the carriage 14 in the form of a crimping plug until it stops with it, and is fixed and sealed in it by the mechanism for fixing the threaded ends of the pipes 19, working from the drive 20.

Next, the pipe together with the carriage 14 moves to the stop 29 on the rack 2.

Mechanisms for fixing pipes from bending along the length and axial rotation of 13 crosses 11 and 12 clamp the pipe. After that, the positional fixation drive of the technological zones for cyclic processing of pipes 17 is automatically turned on and the test pipe enters the technological zone of pressure testing of pipes P. In this zone, the sleeve end of the pipe is installed in the stationary sealing unit 21 by means of a rotary grip 22 operating from the drive 23, and then the drive 26 through the locking mechanism 25 comes into tight contact with the crimping head 24. Thus, the fixing and sealing of the sleeve end of the pipe is completed.

by pressing the test fluid and when a certain pressure is reached give an exposure, after which the results of the pipe strength test are checked.

Then the pressure is relieved and the locking mechanism 25 unlocks the stationary sealing unit 21 and drains the pressure fluid.

After that, the rotor unit 16 is rotated 90, the pipe from the crimping position II, goes into the unloading position III and rests on the receiving and supporting rollers 8 of the transverse pipe unloading mechanism 7, which feed it together with the carriage 14 until the contact of its fixing mechanism for the threaded ends of the pipes 19 with a drive 20, which frees the threaded end of the pipe from the mechanism for fixing the threaded ends of the pipes 19. Then the receiving-supporting rollers 8 using the drives of longitudinal movement of the pipes 9 move the pipe to the rack 2 until it stops 29. The transverse unloading mechanism 7 is overloaded presses the pipe from position III to the inclined guides 28.

The complete crimping cycle of one pipe is completed.

At this time, the next pipe is being crimped at position II, and the next pipe is loaded and prepared at position I.

The stand operates in automatic mode cyclically, while the drive shaft 10 of the rotor assembly 16 with crosspieces I and 12 and carriages 14 rotates 90 according to the cyclic program, changing the treatment zone of each pipe sequentially from loading zone I to pressure zone II, and then to the unloading zone III, and is fixed in calsda of them for the operation of processing the pipe corresponding to each zone.

Thus, the proposed stand for hydraulic testing of pump and compressor pipes can increase the productivity of the process of hydraulic testing, due to the simultaneous implementation of preparatory and technological operations on the rotor unit and the possibility of complete automation of the process, and also reduce the metal consumption of the stand, for

due to the short circuit to the test pipe forces arising inside the pipe during the test

An analysis of the prior art by the applicant, including a search by patent and scientific and technical sources of information and identification of sources containing information about analogues of the inventions, made it possible to establish that the applicant did not find any analogues characterizing common signs identical to all the essential features of the claimed utility model .

The definition from the list of identified analogues of the prototype allowed us to identify a set of essential, in relation to the perceived technical result, distinctive features set forth in the formula of the utility model. Therefore, in our opinion, the claimed utility model “Stand for hydraulic testing of tubing meets the criterion of“ novelty.

Criterion of useful model “industrial applicability is confirmed by the fact that the proposed model with its new features successfully passed factory tests.

Applicant:

General Director of Scientific

enterprises "TECHMA111K

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 . iih 1 / Authors:

V.P. Skobelev

that / Usoltsev M.I. ... Samsonov V.G./,.//,/ Baranov Yu.I. / //

Claims (2)

1. A bench for hydraulic testing of tubing containing a frame with a rack and supports, mechanisms for lateral loading and unloading of pipes with receiving support rollers mounted on a frame in the zone of loading and unloading pipes, a replaceable technological pair of coaxial sealing units for open pipe ends forming together the crimping zone: a movable sealing unit mounted on a carriage moved along the guides along the frame, with a mechanism for fixing the ends of the pipes, and mounted counter to another stationary in in one direction, a sealing assembly mounted on a stand and connected to the injection fluid supply system, and mechanisms for gripping and fixing the pipes from bending along the length and axial rotation, each with its own drive, characterized in that it further comprises a drive shaft supported by the strut and supports with mounted on it between the rack and supports spaced crosses, the ends of which include mechanisms for gripping and fixing pipes from bending along the length and axial rotation and correspond to certain structurally spaced technological zones for simultaneous processing of pipes: loading, crimping and unloading, while at the other end of the shaft, opposite from the cross pieces, each technological zone has its own carriage with a sealing unit of the threaded ends of the pipes with guides fixed between the supports on the shaft, forming together with the shaft and crosses a single rotary unit, the shaft of which is connected with the positional fixation drive of the technological zones of pipe processing, moreover, the stationary sealing assembly in the longitudinal direction is made with the mechanism for fixing the coupling ends of the pipes, and the supporting and supporting rollers - with drives for their rotation and installed with the possibility of leaving the zone of movement of the carriages. 2. The stand according to claim 1, characterized in that the mechanisms for fixing the pipes of the technological pair of coaxial movable and fixed sealing units for the open ends of the pipes are each capable of turning around its axis from an individual drive.