RU73506U1 - AUTOMATED LOCKING AND CONTROLLING DEVICE FOR PRESSURE UP TO 320 kgf / cm2 - Google Patents

Abstract

An automated provocative control device (AZRU) for pressures up to 320 kgf / cm ² for liquid and gas (including those with mechanical impurities from 0.1 mm to 0.5% by volume) with a nominal passage from 0 to 30 (40 ) mm - a two-chamber choke-valve direct-flow regulator that performs the functions of: locking (valves), regulating the flow and pressure of the liquid (gas), as well as the effect on the change in oil recovery. Regulators can be installed on water conduits and valves for injection wells, in a pressure comb block and in a pumping station to replace existing analogs of the ZDSh 65 × 210 type (including the ZDSh 5-65-210 revolving type) in oil production and in other industries requiring manual or program regulation of liquid and (or) gaseous high-pressure media. AZRU contains a dividing chamber with a fitting body and a prefabricated (output) camera with a passage housing. The housings (cameras) are interconnected by several electromagnetic valves controlled from a controller with feedback from the flowmeter. At the same time, opening and closing of valves (according to the program) provides fluid regulation: in time from a fraction of a minute or more; by flow rate from Du 0 to Du equal to the total cross-sectional area of the fittings.

Description

An automated locking and regulating device for pressure up to 320 kgf / cm ² refers to discretely regulating fluid flow according to the program of the controller, and can be used in many industries to maintain flow (supply) in water distribution systems.

The main application of the regulator is in industries associated with pipeline transportation under high pressure and high flow rates of liquid media containing mechanical impurities, including in systems for maintaining reservoir pressure during oil production.

Known flow controllers (1), working to change the total flow area by combining the state of the valves on the saddles of the control elements.

However, such a device is designed to control the gas flow in vacuum systems, that is, with a low pressure and a clean working medium that does not have mechanical or other impurities. In addition, the design is quite complex and not reliable enough (referring to the spring mechanism).

Known regulators or slide gate valves with quick-change fittings having throttle openings from 2 to 12 mm and 32 mm, including a revolving type (2).

The disadvantages of the choke valve are: a narrow range of regulation of nominal bore (from 2 to 12 mm and 32 mm); the inability to simultaneously use several fittings or all at once or their combined use to achieve the maximum number of options for the total flow area of the regulator; the need to block the conduit before changing the fitting; creating a water hammer on a liquid column in an injection well with a height of 1,500 or more meters; manual control of the valve (change of fittings). Increase

the number of fittings with a diameter of 25 mm to 65 mm on this device would lead to a sharp increase in its dimensions and weight, which is not permissible from the point of view of embedding the overall valve in standard design elements of wellhead valves or pipelines.

Automated fluid flow controllers (3) are known, which are union-valve devices in which the combination of the total bore of the nozzle openings is carried out by opening and closing solenoid valves controlled from a controller with feedback from an electromagnetic flowmeter.

The disadvantage of automated regulators is the significant metal consumption of the structure.

The aim of this proposal is to simplify the design, reduce the time it takes for the fluid to pass from the inlet to the outlet, and reduce water losses at the outlets and transitions.

The proposed device comprises an inlet flange (1), forming a dividing chamber with a fitting flange housing (3). The housing (3) is connected to the flanged passage housing (4) through solenoid valves (12) or ball valves (5). An output flange (2) is connected to the housing (4) by pins (9) through a sealing ring (7), which together form a combined output chamber. In the case (3) around the circumference there are nests for installing (removing) ceramic fittings (6) with calibrated holes from 2 to 20 mm (or the desired set of holes). Ceramic fittings (6) are installed in sockets with a rubber sealing ring, and their holes are protected from contamination by a filter mesh. The fittings and filter are fixed in the sockets. Electromagnetic valves for control are connected to the controller (11) with feedback from the electromagnetic flow meter (13). Solenoid valves (12) or ball valves (5) are connected to the housings (3, 4) using a nipple (15) and a nut (16) (or coupling) for

improving the manufacturability of the device and maintainability.

The locking-regulating device can be controlled from the upper level controller, while flowmeters (type “Takeoff”) included in the comb unit or pump station can be used as a flowmeter.

An automated shut-off and control device works as follows: in accordance with the technological schedule of modes (controller program), the opening of all valves provides a quick filling of the control object, for example, pipelines to the reservoir; the overlap of all valves ensures that the device operates as “closed”, and the combination of the number of open-closed valves allows you to adjust the fluid flow: in time from a fraction of a minute or more; by flow: from DN 0 to DN, equal to the total area of the nozzle holes (DN - nominal diameter).

The number of possible combinations of the total cross-section is several tens, and the discreteness of regulation in time and volume (flow) allows for program-controlled maintenance of reservoir pressure during oil production.

References

1. A.S. No. 1275382 A1, 1985

2. Steel gate valve with a disk gate with quick-change fittings ZDSh-65-210 TU 3741-001-49652808-2000 and ZDSh 5-65-210, manufactured by Tekhnovek, Udmurtia, Votkinsk.

3. Patent for utility model No. 43636 of 08/09/2004.

Claims (1)

An automated locking and regulating device for high pressure (up to 320 kgf / cm ² ) liquids with mechanical impurities, containing a dividing choke chamber and an output collection chamber, interconnected by electromagnetic valves, which are controlled from the controller with feedback with an electromagnetic fluid flow meter, characterized in that the nipple dividing chamber is formed by the inlet connecting flange and the flange nipple body with sockets for ceramic bushings (fittings), and the output chamber assembly and is formed by a flanged bushing housing and an output connecting (to the pipeline) flange; while the valves provide regulation: in time from a fraction of a minute or more; by flow rate from Ду = 0 to Ду, equal to the total cross-sectional area of the fittings, and the valves (or ball valves) are connected to the housings by nipple-nut or coupling methods, which significantly improves the manufacturability and maintainability of the regulator, and the use of flanges and housings as generators elements for dividing and prefabricated chambers provides straightforwardness and reduced water losses in the device.