RU2103596C1 - Device for dispatching and receiving fluids in pipeline - Google Patents

Abstract

FIELD: pipeline transportation systems. SUBSTANCE: this can be used in oil, gas, petrochemical and other branches of economy where pipeline transportation systems are employed. Device has dispatching-receiving chamber which at one end is provided with end lock which is made up of cover and tipping half-yokes tightened together by screw, and with trough for inlet and outlet of transported fluid, and other end it is made with eccentric adapter, pipe union and brunch pipe with bushed union made of spark-proof material with small end lock of up to 200 mm inner diameter for dispatching fluid medium. Aforesaid union is located on horizontal axis of chamber. Located inside it is member which is removable and fixable in preset position with external bottom conjugated with inner surface of branch pipe. Tipping half-yokes of chamber end lock are mounted on axles displaced vertically upward and down relative to horizontal axis of chamber. Branch union of chamber has straight sections at ends and is of length and curvature radius ensuring free passing of fluid flow and permitting welding with linear part of pipeline in field conditions. Chamber is inner diameter equal to 1.14 of inner diameter of pipeline. Adapter and pipe union of chamber are of up to 400 mm length. Device is manufactured in factory conditions which makes it more reliable. EFFECT: high efficiency. 4 cl, 4 dwg

Description

 The invention relates to pipeline transport, and in particular to devices for starting and receiving flow means in a pipeline, and can find application in gas, oil, petrochemical and other industries using pipeline transport.

 A device is known for sequentially introducing dividers, scrapers, and other flow devices into the pipeline, including a launch chamber, equipped on one side with an end shutter, consisting of a cover with a flange and hinged clamps pulled together by a screw, and a sliding tray for feeding separators, and connected on the other hand through an adapter and stop valves with a linear part of the pipeline, and the camera is made with cutoffs and is located on the same level with the pipeline. A disadvantage of the known device is the difficulty of starting in-line tools and the need for its location on the same level with the pipeline, as well as the unreliability of the operation of the end shutter actuator.

 The closest to the proposed device are launching and receiving chambers in block-complete design, including launching and receiving chambers, equipped with an end shutter and a fitting for supplying or discharging the medium, and connected at the other end through an adapter and a nozzle equipped with a fitting for storing flow-through means installed perpendicular to the axis of the chamber, with the removal of the linear part of the pipeline [2] - prototype.

 The disadvantages of the known device are: the complexity of the technology for starting (storing) flow means through a fitting located on the pipe perpendicular to the axis of the chamber; the complexity of installation and maintenance of devices; unreliability of a device manufactured in the field; high metal consumption, due to the fact that the diameter of the chamber is unnecessarily much larger than the diameter of the pipeline (40% for pipes DN 500 mm and 16% for pipes DN 1200 mm). The diameter of the chamber is equal to the next larger diameter for the assortment of pipes, that is, if the pipeline is constructed of Du 500 pipes, the diameter of the chamber corresponds to the diameter of Du 700 pipes, the pipeline of Du 700 pipes, the Du 800 chamber, the pipeline of Du 1000 pipes, the Du 1200 chamber etc.

 The invention solves the problem of improving the reliability of the device, simplifying the technology of stocking and starting up flow means, reducing the complexity of installation and maintenance, reducing the metal consumption, interchangeability of the start and receiving chambers of flow means.

 The essence of the invention lies in the fact that in the known device for starting-receiving flow means in a pipeline including a starting-receiving chamber with fittings for supplying and discharging the product and storing flow means, provided with an end closure at one end, consisting of a lid and folding half clamps, which are pulled together a screw and a tray for supplying and discharging in-line means from it, and connected from the other end through an adapter and a branch pipe to the outlet of the linear part of the pipeline, according to the invention, the camera is made in factory conditions with an eccentric adapter, pipe and branch, equipped with a screwed-in intrinsically safe material, a nozzle with a small end closure with a diameter of up to DN 200 mm inclusive for storing flow means, the nozzle is located on the horizontal axis of the chamber, inside contains a removable element fixed in a predetermined position with an external bottom conjugated with the inner bottom the retraction surface, and the folding half-clamps of the end shutter of the camera are mounted on axes that are vertically displaced up and down relative to the horizontal axis of the camera. The camera outlet is made with straight sections at the ends, has a length and a radius of bending, ensuring the passage of flow means and welding with the removal of the linear part of the pipeline in the field. The starting-receiving chamber of the flow means has an inner diameter equal to 1.14 of the inner diameter of the pipeline, and the adapter and nozzle are 400 mm long.

 In FIG. 1 shows a device, a General view, in FIG. 2 - a stocking nozzle with a small end shutter: 2a - a longitudinal section of the nozzle without a shutter; 2b - fitting with a shutter - end view; 2c - end fitting with half clamps in open state; in FIG. 3 - trailer shutter, general view; in FIG. 4 - diagram of the operation of the device.

 The device for starting-receiving flow means into the pipeline comprises a starting-receiving chamber 1 (Fig. 1) with fittings 2, 3 for supplying and discharging the product. The camera is equipped at one end with an end shutter 4 (Fig. 3), consisting of a cover 5 and half-clamps 7 that are tilted on the axles 6, pulled together by a screw 8, as well as a tray 9 (Fig. 1) for supplying and discharging from the camera during stocking receiving the flow means 10 (shown conditionally) with a platform for the winch when using the camera for reception and the fastenings of the tray 9 (Fig. 1). At the other end, the chamber is made with an eccentric adapter 11, a nozzle 12 and a tap 13, equipped with a fitting 14 (Fig. 2) with a small end shutter 15, a sleeve 16, a removable element 17 fixed in a predetermined position, and a portable winch 18 with a platform for attaching it to the tap cameras. The end face of the branch 13 has a corresponding groove for connection with the branch 19 of the pipeline.

 The device operates as follows. The launch-take-up chamber 1, which contains a supply inlet 2 and a product outlet 3, an end shutter 4, an eccentric adapter 11, a nozzle 12 and a branch 13, equipped with a nozzle 14 with a shutter 15 and a removable element 17 for storing flow means into the chamber, which passed the test as a single unit in the factory, after transportation to the installation site is connected by welding with branch 19 of the linear part of the pipeline in the field. When starting the flow means, the winch 18 is put in place (on the branch), the fittings 2 and 3 of the product supply-outlet are closed in the chamber and the linear valve on the pipeline. Through the plunger (not indicated in the drawing), the pressure in the chamber is vented, then, using the screw 8, open the cover 5 of the end shutter of the chamber and on the tray 9 bring flow means 10 to the chamber, attach the tray to the chamber and support (Fig. 1), open the shutter 15 the fitting 14, the removable element 17 is removed and the personnel folding rod is hooked on the service stock cable connected to the flow means 10, the cable is pulled through the chamber 1 and connected to the winch 1 *, by which the flow means is stored (pulled) into the chamber to the nozzle 12, then take the tray 9, close the cover 5 of the end shutter 4 with a screw 8, disconnect the cable and remove it from the camera, install the removable element 17 in the fitting 14 so that its protrusions coincide with the recesses in the fitting and the bottom mates with the inner surface of the outlet, and close the shutter 15 fitting nipples. The linear valve on the pipeline and the fitting 2 for supplying the product into the chamber are opened. Under the pressure of the product, the in-line tool enters the pipeline due to the fact that the chamber, adapter, pipe and branch of the chamber and the branch of the pipeline smoothly pass and continue each other.

The proposed device easily and quickly provides a reserve - the launch of flow means into the pipeline, does not require sophisticated equipment for dragging them into the chamber, it is reliable in operation, and the use of launch-reception chambers with a diameter equal to D $\genfrac{}{}{0ex}{}{\text{in}}{\text{to}}$ = 1,14D $\genfrac{}{}{0ex}{}{\text{in}}{\text{tr}}$ and an adapter and a branch pipe with a length of 400 mm provides metal savings while ensuring the operation of funds without jamming and water hammer.

 The proposed device is effective in operation for pipes of any diameter. The cameras are interchangeable in case of a change in the direction of cargo flows in the pipeline, provide both start-up and reception, shuttle movement of flow means and can be used on pipelines in the gas, oil, petrochemical industries and any other industries using pipeline transport.

Claims (5)

 1. A device for starting and receiving flow means into the pipeline, including a starting and receiving chamber with fittings for supplying and discharging the product and storing the flow means, equipped with an end closure at one end, consisting of a cover and hinged half-clamps pulled together by a screw, and a tray for supply and removal flow means from it, and from the other end connected through an adapter and a branch pipe with a branch of the linear part of the pipeline, characterized in that the chamber in the factory is made with an eccentric adapter, a pipe and a branch, equipped with a nozzle with a sleeve made of intrinsically safe material with a small end shutter for storing flow means, the nozzle is located on the horizontal axis of the chamber, inside contains a removable element with a bottom mating with the inner surface of the outlet, and folding half clamps of the end shutter of the chamber are mounted on axes that are vertically offset up and down relative to the horizontal axis of the camera.  2. The device according to p. 1, characterized in that the chamber outlet is made with straight sections at the ends, has a length and bending radius that allow the passage of flow means and welding with the branch of the linear part of the pipeline in the field.  3. The device according to claim 1, characterized in that the inner diameter of the chamber is 1.14 of the inner diameter of the pipeline.  4. The device according to claim 1, characterized in that the adapter and nozzle are 400 mm long. 5. The device according to claim 1, characterized in that the small end valve is made with a nominal pass up to D _at 200 mm inclusive.

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