WO2013176572A1 - Fixed gate valve for liquid mineral extraction - Google Patents

Fixed gate valve for liquid mineral extraction Download PDF

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Publication number
WO2013176572A1
WO2013176572A1 PCT/RU2012/001128 RU2012001128W WO2013176572A1 WO 2013176572 A1 WO2013176572 A1 WO 2013176572A1 RU 2012001128 W RU2012001128 W RU 2012001128W WO 2013176572 A1 WO2013176572 A1 WO 2013176572A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
permanent magnet
gate
oriented poles
case
Prior art date
Application number
PCT/RU2012/001128
Other languages
French (fr)
Inventor
Oleg Nikolaevich Zhuravlev
Andrey Vladimirovich Shishov
Original Assignee
Oleg Nikolaevich Zhuravlev
Andrey Vladimirovich Shishov
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oleg Nikolaevich Zhuravlev, Andrey Vladimirovich Shishov filed Critical Oleg Nikolaevich Zhuravlev
Publication of WO2013176572A1 publication Critical patent/WO2013176572A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/084—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet the magnet being used only as a holding element to maintain the valve in a specific position, e.g. check valves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells

Definitions

  • This invention relates to the units and components of machinery, more specifically, to valves, preferably valves providing for the passage of gaseous, liquid or commingled gaseous/liquid flows, and can be used in any field of science and engineering making use of adjustable transfer of gaseous, liquid or commingled gaseous/liquid flows, yet more specifically, in gas, petrochemical and chemical industries.
  • a valve device comprising a case with an input and an output ports and at least two gates installed in its channels and spring loaded towards the saddle by means of spring mechanisms installed coaxially with said channels.
  • Said input and an output ports and arranged coaxially and orthogonally to said channels, and said spring mechanisms are located in cylindrical cavities provided in said case wherein said cylindrical cavities are interconnected with said input port when said valve is open and with said output port when said valve is closed.
  • an unloaded gate valve comprising a bottom case and a top case, a saddle with a sealing surface, a plunger in the form of a hollowed plug with a sealing surface and through holes provided in its bottom collectively forming a plunger unloading chamber, a drive stem, and membrane bellows with folding corrugations and end pieces the top one of which is tightly connected with the top part of said plunger and the bottom one is tightly incorporated into the case of said valve, such that the compression of said bellows caused by a loading action of said drive stem produces an axial movement of said plunger, wherein the inner cavity of said bellows is connected, through a channel provided on said bottom end piece of said bellows and further through a bypass line having a valve, to the working media pressure cavity acting on said valve.
  • Said top end piece of said bellows has such a configuration that to form a plunger pair with said top case and a cavity between said top case and the outer surface of said bellows the average diameter of which is equal to the average diameter of said valve gate sealing surface, wherein said valve has a second bypass line with a valve connecting the working media pressure cavity acting on said valve with the outer surface of said bellows, further wherein both bypass line channels have stop valves and all the valves are normally open.
  • valve Disadvantage of said known valve is its complex design and a limited service life determined by the use of a membrane that is subject to periodical mechanical loads.
  • the closest counterpart of the valve provided herein is (RU Patent 96208) a fixed gate valve used for the extraction of liquid minerals.
  • Said valve comprises a saddle, a gate, an elastic component with an opening in the central part, a lid and a headed rod wherein said elastic component is arranged between said gate and said lid, and a blind hole is provided in said gate at the lid side for the placement of said headed rod.
  • Said elastic component is preferably spring loaded or disc type and has windows for the passage of the working media.
  • the contact surface of the valve saddle may be conical, spherical, flat or a combination of the abovementioned shapes.
  • the contact surface of the valve gate may also be conical, spherical, flat or a combination of the abovementioned shapes.
  • Said elastic component can be made from one or multiple plates or one or multiple discs.
  • the contact surface between said valve gate and said elastic component may be conical, spherical or rounded.
  • Closed valve gate can be fixed by a load exerted by said elastic component.
  • Said elastic component can be arranged at any angle of up to 90 deg relative to the valve axis.
  • said elastic component can be fixed to the valve lid or the valve saddle or pressed between the valve lid and the valve saddle.
  • Disadvantage of said known device is its limited service life determined by the use of the spring component that is subject to periodical mechanical loads.
  • the object of this invention is to increase the service life of this type of valves.
  • Said valve comprises a case and a compound pipe with flow media input and output openings, a saddle, a gate and a gate fixation means.
  • Said valve furthermore comprises a plug at least part of which is made from a ferromagnetic material wherein said plug is installed in said case, and said gate fixation means is in the form of at least one magnet with a preset coercive force.
  • the operation of the valve provided herein is based on the interaction between two different physical phenomena, i.e. magnetism and hydrodynamics.
  • a normally open valve said interaction occurs in the following sequence.
  • the flow passes through the flow channel formed by the valve design components, the inherent hydraulic impedance and the head of the flowing media produce a pressure drop at the gate surface.
  • a force starts to act upon the valve gate, said force being counteracted by the coercive force of at least one permanent magnet included into the valve design.
  • the magnitude of said coercive force at a certain position is constant. It is designed at the valve design stage based on its anticipated operation conditions.
  • the force exerted on the valve gate by the flowing media exceeds the magnetic force and changes the state of the valve.
  • the valve gate lands onto the saddle to close the valve.
  • the flow is directed to another flow channel.
  • the force interaction occurs in a similar manner as the media flow decreases: the gate pressure drop decreases, and the magnetic force returns the valve to its normal state.
  • said compound pipe further comprises guides that control the valve gate movement direction.
  • the bottom butt-end of said plug may further comprise a permanent magnet with preset parameters including the coercive force wherein the poles of said magnet can be oriented either arbitrarily or in a preset regular manner. This depends on the anticipated operation conditions of the valve.
  • Said compound pipe, gate and case can be made from a ferromagnetic material.
  • valve design is illustrated in Fig. 1 (open state) and Fig 2 (top view, case not shown) wherein the following notations are used: case 1 , gate 2, magnet 3, plug 4, side guide 5, saddle 6 and compound pipe 7.
  • the valve is normally open due to the coercive force of the magnet.
  • the valve can be switched by the pressure drop produced at the gate when the flow of the media changes.
  • the valve activation (closure or opening) force can be adjusted by selective the coercive force of said permanent magnet.
  • the valve design provided herein can be used with some modifications in passive flow direction control systems provided in wells for different operation modes e.g. equipment lowering, formation hydrofracturing, well flushing etc..

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

This invention relates to the units and components of machinery, more specifically, to valves, preferably valves providing for the passage of gaseous, liquid or commingled gaseous/liquid flows, and can be used in any field of science and engineering making use of adjustable transfer of gaseous, liquid or commingled gaseous/liquid flows, yet more specifically, in gas, petrochemical and chemical industries.

Description

Fixed Gate Valve for Liquid Mineral Extraction
This invention relates to the units and components of machinery, more specifically, to valves, preferably valves providing for the passage of gaseous, liquid or commingled gaseous/liquid flows, and can be used in any field of science and engineering making use of adjustable transfer of gaseous, liquid or commingled gaseous/liquid flows, yet more specifically, in gas, petrochemical and chemical industries.
Known is a valve device (RU Patent 2066010) comprising a case with an input and an output ports and at least two gates installed in its channels and spring loaded towards the saddle by means of spring mechanisms installed coaxially with said channels. Said input and an output ports and arranged coaxially and orthogonally to said channels, and said spring mechanisms are located in cylindrical cavities provided in said case wherein said cylindrical cavities are interconnected with said input port when said valve is open and with said output port when said valve is closed.
Disadvantage of said known device is its limited service life determined by the use of the spring mechanisms that are subject to periodical mechanical loads.
Known is (RU Patent 2447346) an unloaded gate valve comprising a bottom case and a top case, a saddle with a sealing surface, a plunger in the form of a hollowed plug with a sealing surface and through holes provided in its bottom collectively forming a plunger unloading chamber, a drive stem, and membrane bellows with folding corrugations and end pieces the top one of which is tightly connected with the top part of said plunger and the bottom one is tightly incorporated into the case of said valve, such that the compression of said bellows caused by a loading action of said drive stem produces an axial movement of said plunger, wherein the inner cavity of said bellows is connected, through a channel provided on said bottom end piece of said bellows and further through a bypass line having a valve, to the working media pressure cavity acting on said valve. Said top end piece of said bellows has such a configuration that to form a plunger pair with said top case and a cavity between said top case and the outer surface of said bellows the average diameter of which is equal to the average diameter of said valve gate sealing surface, wherein said valve has a second bypass line with a valve connecting the working media pressure cavity acting on said valve with the outer surface of said bellows, further wherein both bypass line channels have stop valves and all the valves are normally open.
Disadvantage of said known valve is its complex design and a limited service life determined by the use of a membrane that is subject to periodical mechanical loads. The closest counterpart of the valve provided herein is (RU Patent 96208) a fixed gate valve used for the extraction of liquid minerals. Said valve comprises a saddle, a gate, an elastic component with an opening in the central part, a lid and a headed rod wherein said elastic component is arranged between said gate and said lid, and a blind hole is provided in said gate at the lid side for the placement of said headed rod. Said elastic component is preferably spring loaded or disc type and has windows for the passage of the working media. The contact surface of the valve saddle may be conical, spherical, flat or a combination of the abovementioned shapes. Accordingly, the contact surface of the valve gate may also be conical, spherical, flat or a combination of the abovementioned shapes. Said elastic component can be made from one or multiple plates or one or multiple discs. The contact surface between said valve gate and said elastic component may be conical, spherical or rounded. Closed valve gate can be fixed by a load exerted by said elastic component. Said elastic component can be arranged at any angle of up to 90 deg relative to the valve axis. In some embodiments of said valve device, said elastic component can be fixed to the valve lid or the valve saddle or pressed between the valve lid and the valve saddle.
Disadvantage of said known device is its limited service life determined by the use of the spring component that is subject to periodical mechanical loads. The object of this invention is to increase the service life of this type of valves.
It is suggested to achieve the abovementioned object by providing a fixed gate valve used for the extraction of liquid minerals. Said valve comprises a case and a compound pipe with flow media input and output openings, a saddle, a gate and a gate fixation means. Said valve furthermore comprises a plug at least part of which is made from a ferromagnetic material wherein said plug is installed in said case, and said gate fixation means is in the form of at least one magnet with a preset coercive force.
The operation of the valve provided herein is based on the interaction between two different physical phenomena, i.e. magnetism and hydrodynamics. For a normally open valve, said interaction occurs in the following sequence. When the flow passes through the flow channel formed by the valve design components, the inherent hydraulic impedance and the head of the flowing media produce a pressure drop at the gate surface. As a result a force starts to act upon the valve gate, said force being counteracted by the coercive force of at least one permanent magnet included into the valve design. The magnitude of said coercive force at a certain position is constant. It is designed at the valve design stage based on its anticipated operation conditions. As the flow increases, the force exerted on the valve gate by the flowing media exceeds the magnetic force and changes the state of the valve. The valve gate lands onto the saddle to close the valve. As a result the flow is directed to another flow channel. The force interaction occurs in a similar manner as the media flow decreases: the gate pressure drop decreases, and the magnetic force returns the valve to its normal state.
In some embodiments of the design provided herein, said compound pipe further comprises guides that control the valve gate movement direction.
The bottom butt-end of said plug may further comprise a permanent magnet with preset parameters including the coercive force wherein the poles of said magnet can be oriented either arbitrarily or in a preset regular manner. This depends on the anticipated operation conditions of the valve.
Said compound pipe, gate and case can be made from a ferromagnetic material.
The valve design provided herein is illustrated in Fig. 1 (open state) and Fig 2 (top view, case not shown) wherein the following notations are used: case 1 , gate 2, magnet 3, plug 4, side guide 5, saddle 6 and compound pipe 7. The valve is normally open due to the coercive force of the magnet. The valve can be switched by the pressure drop produced at the gate when the flow of the media changes. The valve activation (closure or opening) force can be adjusted by selective the coercive force of said permanent magnet. The valve design provided herein can be used with some modifications in passive flow direction control systems provided in wells for different operation modes e.g. equipment lowering, formation hydrofracturing, well flushing etc..

Claims

What is claimed is a
1. Fixed gate valve used for the extraction of liquid minerals comprising a case and a compound pipe with flow media input and output openings, a saddle, a gate and a gate fixation means, wherein said valve furthermore comprises a plug at least part of which is made from a ferromagnetic material wherein said plug is installed in said case, and said gate fixation means is in the form of at least one magnet with a preset coercive force.
2. Valve of Claim 1 wherein said compound pipe further comprises guides that control the valve gate movement direction.
3. Valve of Claim 1 wherein the bottom butt-end of said plug comprises a permanent magnet.
4. Valve of Claim 3 wherein said permanent magnet is a permanent magnet with arbitrarily oriented poles.
5. Valve of Claim 3 wherein said permanent magnet is a permanent magnet with regularly oriented poles.
6. Valve of Claim 1 wherein the valve gate further comprises at least one permanent magnet.
7. Valve of Claim 6 wherein said permanent magnet is a permanent magnet with arbitrarily oriented poles.
8. Valve of Claim 6 wherein said permanent magnet is a permanent magnet with regularly oriented poles.
9. Valve of Claim 1 wherein the valve saddle further comprises a permanent magnet.
10. Valve of Claim 9 wherein said permanent magnet is a permanent magnet with arbitrarily oriented poles.
1 1. Valve of Claim 9 wherein said permanent magnet is a permanent magnet with regularly oriented poles.
12. Valve of Claim 1 wherein the at least one of said side guides further comprises a permanent magnet.
13. Valve of Claim 12 wherein said permanent magnet is a permanent magnet with arbitrarily oriented poles.
14. Valve of Claim 12 wherein said permanent magnet is a permanent magnet with regularly oriented poles.
15. Valve of Claim 1 wherein said compound pipe is made from a ferromagnetic material.
16. Valve of Claim 1 wherein said valve gate is made from a ferromagnetic material.
17. Valve of Claim 1 wherein said valve case is made from a ferromagnetic material.
PCT/RU2012/001128 2012-05-21 2012-12-27 Fixed gate valve for liquid mineral extraction WO2013176572A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2012120634 2012-05-21
RU2012120634 2012-05-21

Publications (1)

Publication Number Publication Date
WO2013176572A1 true WO2013176572A1 (en) 2013-11-28

Family

ID=49624155

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2012/001128 WO2013176572A1 (en) 2012-05-21 2012-12-27 Fixed gate valve for liquid mineral extraction

Country Status (1)

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WO (1) WO2013176572A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028938A1 (en) * 1979-07-30 1981-02-19 Shimizu Mitsuru FLUID BLOCKING DEVICE
RU2148200C1 (en) * 1998-09-07 2000-04-27 Мамедов Юрий Мусаевич Valve
RU96208U1 (en) * 2010-03-31 2010-07-20 Общество с ограниченной ответственностью "ВОРМХОЛС" FIXED VALVE VALVE VALVE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028938A1 (en) * 1979-07-30 1981-02-19 Shimizu Mitsuru FLUID BLOCKING DEVICE
RU2148200C1 (en) * 1998-09-07 2000-04-27 Мамедов Юрий Мусаевич Valve
RU96208U1 (en) * 2010-03-31 2010-07-20 Общество с ограниченной ответственностью "ВОРМХОЛС" FIXED VALVE VALVE VALVE

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