RU217880U1 - Installation for introducing an anti-turbulent additive into the pipeline - Google Patents

Abstract

The utility model relates to chemical dosing techniques and can be used, for example, in the oil industry to increase the throughput of oil pipelines or oil product pipelines by reducing the hydraulic resistance of the turbulent flow of oil or oil products during pumping by introducing an anti-turbulent additive into the pipeline. The installation for introducing an anti-turbulent additive into a pipeline contains a control unit and equipment for preparing and supplying an anti-turbulent additive from a storage unit installed in an insulated block-box. This equipment includes the main and standby feed pumps connected by pipelines with shut-off valves, installed with the possibility of recirculating the anti-turbulent additive in the storage unit, at the inlet of which an inlet pipeline is installed. Also, this equipment includes the main and standby dosing pumps, the inlet of each of which is connected through a filter to the outlets of both feed pumps. A discharge pipeline is installed before the inlet of each dosing pump. At the outlet of the dosing pumps, a flow meter is installed, at the outlet of which an exhaust pipeline is installed. Also, this equipment contains a bypass pipeline of the flow meter connecting the outlet of the dosing pumps and the outlet pipeline, the pipeline for connecting to the transport tank, installed at the inlet of the main feed pump, and the pipeline for supplying anti-turbulent additive from the transport tank, installed at the outlet of the main feed pump. The technical result is expressed in increasing the duration of uninterrupted operation of the installation. 1 w.p. f-ly, 2 ill.

Description

The utility model relates to chemical dosing techniques and can be used, for example, in the oil industry to increase the throughput of oil pipelines or oil product pipelines by reducing the hydraulic resistance of the turbulent flow of oil or oil products during pumping by introducing an anti-turbulent additive into the pipeline.

Known installation for the introduction of anti-turbulent additives in the pipeline [RF Patent No. 175266 U1, IPC F17D 3/12, F17D 1/16, C. 08/11/2017., op. 11/29/2017], taken as a prototype. According to the information presented in the above patent, this installation contains a block (unit) installed in an insulated container ) control and equipment for the preparation and supply of an anti-turbulent additive from the storage unit, including the main and backup supply pumps connected by pipelines with shutoff valves, at the inlet of which an inlet pipeline is installed, the main and backup dosing pumps, the input of each of which is connected through a filter to the outputs of both supply pumps, a recirculation pump, the suction and delivery pipes of which are made with the possibility of connection to the accumulation block for anti-turbulent additive, the discharge pipeline installed in front of the inlet of each metering pump, the flow meter installed at the outlet of the metering pumps, the outlet pipeline installed at the outlet of the flow meter.

The disadvantages of the prototype are:

1. The absence of a backup recirculation pump as part of the installation, which can lead to a stop in the process of preparing the anti-turbulent additive for use, resulting in a decrease in the duration of uninterrupted operation.

2. The absence of a bypass pipeline (bypass line) of the flow meter, as a result of which the dismantling of the flow meter for repair or verification will require a shutdown of the installation, as a result of which the duration of uninterrupted operation is reduced.

3. The impossibility in the process of performing the technological process of preparing and introducing an anti-turbulent additive to fill the storage block tank with an additive from the transport (imported) tank, which can lead, if the storage block is empty, to an unscheduled shutdown of the installation, as a result of which the duration of uninterrupted operation is reduced .

The technical problem is the creation of an installation for introducing an anti-turbulent additive into the pipeline, which ensures a high duration of uninterrupted operation.

The technical result is expressed in increasing the duration of uninterrupted operation of the installation.

The specified technical result is achieved by the fact that the installation for introducing an anti-turbulent additive into the pipeline contains a control unit installed in an insulated block box and equipment for preparing and supplying an anti-turbulent additive from the storage unit, including the main and backup feed pumps connected by pipelines with shutoff valves, at the inlet of which an inlet pipeline is installed, the main and backup dosing pumps, the inlet of each of which is connected through a filter to the outlets of both feed pumps, a discharge pipeline installed in front of the inlet of each dosing pump, a flow meter installed at the outlet of the dosing pumps, an outlet pipeline installed at the outlet of the flow meter, contains the bypass pipeline of the flow meter connecting the outlet of the dosing pumps and the outlet pipeline, and also contains a pipeline for connecting to the transport tank installed at the inlet of the main feed pump and a pipeline for supplying an anti-turbulent additive from the transport tank installed at the outlet of the main feed pump, while the feed pumps are installed with the possibility implementation of recirculation of the anti-turbulent additive in the storage unit.

The maximum capacity of each of the dosing pumps may be less than the capacity of each of the feed pumps.

The claimed utility model is illustrated in Fig. 1 and 2. In FIG. 1 shows a flow diagram of an installation for introducing an anti-turbulent additive into a pipeline; in fig. 2 - technological scheme of the installation connected to the storage unit and to the transport tank during operation.

The installation for introducing an anti-turbulent additive into the pipeline contains a control unit installed in an insulated block box 18 (Fig. 1, 2) (not shown in Fig. 1, 2) and equipment for preparing and supplying an anti-turbulent additive from the storage block 14 (Fig. 2 ). Block-box 18 is a transportable building made of a metal frame, sheathed on the outside with sandwich panels, on the internal elements of which (walls, floor, ceiling) the installation equipment is fixed, and through the walls of which outputs (inputs) of the corresponding pipelines are made. The accumulation block 14 for anti-turbulent additives is made in the form of two parallel pipelines with shut-off valves of tanks 15 and 16 for anti-turbulent additives. As reservoirs 15 and 16 for anti-turbulent additives are used, for example, cargo cubic containers of the "Eurocube" type. The control unit is made in the form of control cabinets fixed inside the block box 18, in which the elements of control and management of the technological processes of the installation are installed.

Equipment for the preparation and supply of anti-turbulent additives from the storage unit 14 includes connected by pipelines with shut-off valves 13 (not all indicated by positions) main 1 (Fig. 1, 2) and backup 2 feed pumps. As valves 13 used, for example, ball valves. The main 1 and backup 2 feed pumps are installed with the possibility of recirculating the anti-turbulent additive in the storage block 14 (Fig. 2). As feed pumps used, for example, gear pumps with a constant performance.

At the inputs of the main 1 and backup 2 supply pumps, an inlet pipeline 3 (Fig. 1, 2) is installed, designed to connect the installation to the storage unit 14 (Fig. 2). Also, the equipment for preparation and supply of anti-turbulent additives from the storage unit 14 includes the main 4 (Fig. 1, 2) and the backup 5 dosing pumps, the inlet of each of which is connected through a filter 6 to the outputs of both supply pumps 1 and 2. As dosing pumps ( main 4 and backup 5) installed, for example, plunger dosing pumps with adjustable flow, allowing you to supply a given amount of anti-turbulent additive in the pipeline. Dosing pumps (primary 4 and backup 5) are selected so that the maximum capacity of each of them is less than the capacity of the feed pump (primary 1 and backup 2) to ensure the proper recirculation of the anti-turbulent agent. Before the inlet of each dosing pump (main 4 and backup 5), a discharge pipeline 7 is installed, designed to discharge into the storage unit 14 (Fig. 2) excess anti-turbulent additives coming from the supply pump (main 1 or backup 2) to the dosing pump (main 4 or backup 5).

At the outlet of the dosing pumps (main 4 and backup 5), a flow meter 8 is installed, designed to control the amount of anti-turbulent additive supplied to the pipeline. At the outlet of the flowmeter 8, an outlet pipeline 9 is installed, designed to be connected to a pipeline (not shown), into which the anti-turbulent additive will be supplied. To enable the flow meter 8 to be decommissioned (for repair, verification, etc.) without stopping the technological process of introducing an anti-turbulent additive, the installation contains a bypass pipeline 10 of the flow meter connecting the output of the dosing pumps (main 4 and backup 5) and the outlet pipeline 9.

Also, the installation contains a pipeline 11 for connecting to the transport tank 17 (Fig. 2), installed at the inlet of the main feed pump 1 and a pipeline 12 for supplying an anti-turbulent additive from the transport tank 17, installed at the outlet of the main feed pump 1, intended for connection to the storage unit 14. The storage unit 14 and the transport container 17 are not part of the claimed installation.

Installation for the introduction of anti-turbulent additives in the pipeline operates as follows.

The installation for introducing anti-turbulent additives into the pipeline is brought to the facility and, using a crane, is installed at the required distance from the planned connection point to the oil pipeline (oil product pipeline) and from the storage unit 14 (Fig. 2) located at this facility.

By means of flexible hoses or pipelines (not shown), the corresponding pipelines of the installation for introducing anti-turbulent additives into the pipeline are connected to the oil pipeline or oil product pipeline (not shown) and to the storage block 14 (Fig. 2), in the tanks 15, 16 of which there is a pre-prepared for use (e.g. hand-mixed until smooth) anti-turbulence additive.

The main feed pump 1 supplies the anti-turbulent additive from the tank 15 of the storage unit 14, through the appropriate filter 6, which provides cleaning from mechanical impurities, to the inlet of the main dosing pump 4. Due to the fact that the main feed pump 1 has a known higher capacity than the main dosing pump 4 over the entire dosing range, then at the inlet of the main dosing pump 4, excess anti-turbulent additives are formed, which are returned through the discharge pipeline 7 to the reservoir 15 of the storage unit 14, thereby providing recirculation that maintains a uniform state of the anti-turbulent additive necessary for its performance. The operations of all technological processes are preceded by the opening-closing of the corresponding stop valves 13. Then, with a given capacity of the main dosing pump 4, the anti-turbulent additive is fed through the flow meter 8 into the outlet pipeline 9, and then into the oil pipeline (oil product pipeline). The flow meter 8 provides control over the amount of anti-turbulent additive supplied to the pipeline, which allows you to control the operation of the dosing pumps (main 4 and backup 5) and monitor the emptying of the tank 15, the initial volume of the anti-turbulent additive in which is known in advance. After emptying the tank 15, the transition to work with the tank 16 is made.

In case of failure of the main feed pump 1 or the main dosing pump 4, or in case of other need to take them out of service, the backup feed pump 2 or the backup dosing pump 5 are put into operation, respectively.

If it is necessary to dismantle the flow meter 8, for example, for repair or verification, the supply of anti-turbulent additive is carried out through the bypass pipeline 10 of the flow meter.

The pumps are turned on and off by the corresponding starting elements located in the control cabinets that are part of the control unit (not shown).

After emptying the tank 15 and switching to work with the tank 16 in order to prevent an unplanned stoppage of the process of introducing an anti-turbulent additive due to the emptying of both tanks 15 and 16, the empty tank 15 is filled from the brought transport tank 17, for example, from a cargo cubic container of the Eurocube type ". To do this, the pipeline 11 is connected to the transport tank through flexible hoses or pipelines (not shown) to the transport tank 17, providing the supply of anti-turbulent additive to the inlet of the main supply pump 1. oil product pipeline) use a backup supply pump 2. By means of pipelines or flexible hoses, the pipeline 12 for supplying an anti-turbulent additive from the transport tank is connected to the storage unit 14, providing the supply of an anti-turbulent additive to the tank 15.

After the tank 16 is emptied, the operation is switched back to operation with the tank 15 filled, and the tank 16 is filled with anti-turbulence additive from the transport tank 17, as described above.

As a result of the above, an increase in the duration of uninterrupted operation of the installation for introducing anti-turbulent additives into the pipeline is provided.

Claims (2)

1. An installation for introducing an anti-turbulent additive into a pipeline, containing a control unit installed in an insulated block box and equipment for preparing and supplying an anti-turbulent additive from a storage unit, including the main and backup supply pumps connected by pipelines with shut-off valves, at the inlet of which an inlet pipeline is installed, main and standby dosing pumps, the inlet of each of which is connected through a filter to the outlets of both feed pumps, a discharge pipeline installed before the inlet of each dosing pump, a flow meter installed at the outlet of the dosing pumps, an outlet pipeline installed at the outlet of the flow meter, characterized in that it contains the bypass pipeline of the flow meter connecting the outlet of the dosing pumps and the outlet pipeline, and also contains a pipeline for connecting to the transport tank installed at the inlet of the main feed pump and a pipeline for supplying an anti-turbulent additive from the transport tank installed at the outlet of the main feed pump, while the feed pumps are installed with the possibility implementation of recirculation of the anti-turbulent additive in the storage unit. 2. Installation according to claim. 1, characterized in that the maximum performance of each of the dosing pumps is less than the performance of each of the feed pumps.

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