CN103256033A - Piston type low shearing mother liquor flow regulation device - Google Patents
Piston type low shearing mother liquor flow regulation device Download PDFInfo
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- CN103256033A CN103256033A CN2013101899710A CN201310189971A CN103256033A CN 103256033 A CN103256033 A CN 103256033A CN 2013101899710 A CN2013101899710 A CN 2013101899710A CN 201310189971 A CN201310189971 A CN 201310189971A CN 103256033 A CN103256033 A CN 103256033A
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- mother liquor
- piston
- cylinder barrel
- flow regulation
- rubber tube
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Abstract
The invention relates to a liquor flow regulation device, in particular to a piston type low shearing mother liquor flow regulation device in order to solve the problem that an existing coil damper mother liquor flow regulation device is large in shearing degree, continuous regulation of polymer solution cannot be achieved, viscosity loss during a polymer solution flow distribution process cannot be avoided, and viscosity loss is large when differential pressure of a Venturi damper is large. The piston type low shearing mother liquor flow regulation device comprises a mother liquor lower connector, a rubber pipe, a piston, a cylinder barrel, a mother liquor upper connector, a piston rod and an electric actuator. The piston is sleeved on the mother liquor upper connector placed in the cylinder barrel and can slide on the outer wall of the mother liquor upper connector and the inner wall of the cylinder barrel. One end of the rubber pipe is connected on the mother liquor lower connector placed in the cylinder barrel in a sleeved mode. The other end of the rubber pipe is connected on the mother liquor upper connector placed in the cylinder barrel in a sleeved mode. An output end of the electric actuator is connected with the piston rod which is connected with the piston. The piston type low shearing mother liquor flow regulation device is used for oil field polymer oil extraction flow regulation.
Description
Technical field
The present invention relates to a kind of liquid flow-conditioning, be specifically related to a kind of field polymers and recover the oil with the low mother liquid flow rate adjusting device of shearing of piston type, belong to valve technology field.
Background technology
Conventional mother liquid flow rate adjuster divides main type to have two kinds from principle: coil pipe damper and venturi damper.The coil pipe damper is the on-way resistance that utilizes polymer to flow and produce in coil pipe, makes up by the pipeline of selecting different tube diameters and length, obtains various needed flows.Because the resistance coefficient of pipe flow is very little, in order to guarantee the low shearing of fluid, the mobile laminar flow that is necessary in the pipe.In order to obtain needed flow, generally need very long pipeline, because shearing along journey in the pipe has cumulative effect, pressure drop is very big, and pipeline is more long, and pressure drop is more big, shears more serious.The helical buckling of coil pipe produces secondary flow simultaneously, has increased shear rate.Coiled flow control valve structure is huge in addition, can not realize the continuous adjusting of polymer solution, can not really solve the difficult problem of the viscosity loss in the polymer solution flow assigning process.The venturi damper then is to utilize rotational rheometer, and the shear degradation border shear rate of the polymer of finding out different molecular weight under variable concentrations, different quality preparation on this basis, used the venturi undergauge to increase the resistance principle and manufactured and designed and form.This flow regulator viscosity loss is less, volume is little, can satisfy the assignment of traffic needs of the injection well of different flow, different pressures.At present, generally use in the oil field namely is the high pressure mother liquid flow rate adjuster that increases resistance principle and cone valve in conjunction with the venturi undergauge, when flow regulator entrance, outlet pressure reduction hour, the viscosity loss of polymer mother liquor is less, but when pressure reduction was 3MPa, the polymer mother liquor viscosity loss still can be up to 5%.Therefore, new low shearing mother liquid flow rate adjustment structure has to be solved.
Summary of the invention
The objective of the invention is for solving existing coil pipe damper mother liquid flow rate adjusting device, shear rate is big, can not realize the continuous adjusting of polymer solution, can't solve the problem of sticking viscosity loss in polymer solution flow assigning process, and venturi damper big problem of viscosity loss when pressure reduction is big, and then provide a kind of piston type the low mother liquid flow rate adjusting device of shearing.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: the low mother liquid flow rate adjusting device of shearing of piston type of the present invention comprises the mother liquor lower contact, rubber tube, piston, cylinder barrel, the mother liquor top connection, piston rod and YE, one end of described cylinder barrel is fitted with the mother liquor lower contact, the other end of cylinder barrel is fitted with the mother liquor top connection and the two removably connects, be positioned in the mother liquor top connection of cylinder barrel and be set with piston, piston can slide at the outer wall of mother liquor top connection and the inwall of cylinder barrel, one end of rubber tube is socketed in the mother liquor lower contact that is positioned at cylinder barrel, the other end of rubber tube is socketed in the mother liquor top connection that is positioned at cylinder barrel, rubber tube, cylinder barrel, form a chamber between mother liquor lower contact and the piston, the output of YE is connected with piston rod, and piston rod is connected with piston.
The invention has the beneficial effects as follows: conventional venturi mother liquid flow rate adjuster Principles of Regulation as shown in Figure 4, contrast as seen with apparatus of the present invention such as Fig. 3, in the conventional polymer mother liquid flow rate adjuster, high pressure polymerisation thing mother liquor flows through from the gap of poppet spool valve and cone valve valve casing, and when regulating flow less than 3m
3During/h, this gap radial dimension δ is less than 2mm, because narrow gaps, polymer mother liquor will bear shearing force inevitably, and shearing force is bigger, causes viscosity loss also bigger.And for piston type mother liquid flow rate adjuster of the present invention, motion by control piston realizes the (adjusting of 2mm～15mm) of rubber tube inner diameter d, solve existing coil pipe damping mother liquid flow rate adjuster effectively and can not realize the continuous adjusting of polymer mother liquor, and the problem that can't solve the loss of polymer solution flow assigning process medium viscosity, when regulating flow less than 3m
3During/h, the interior latus rectum d of rubber tube can reach 15mm, when polymer mother liquor is flowed through in the rubber tube, it is little that polymer bears shearing force, the polymer mother liquor viscosity loss that causes thus also will decrease, utilize apparatus of the present invention that the polymer mother liquor viscosity loss is dropped to below 1%, solved venturi damper big problem of viscosity loss when pressure reduction big (entrance, more than the outlet pressure reduction 1Mpa) effectively.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention, Fig. 2 is the A-A sectional view of Fig. 1, Fig. 3 is that device of the present invention is used for polymer mother liquor Flow-rate adjustment principle schematic, and Fig. 4 is conventional venturi polymer mother liquor flow regulator Principles of Regulation schematic diagram (poppet spool valve 9, cone valve valve casing 10, polymer mother liquor 11).
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1～Fig. 3, the low mother liquid flow rate adjusting device of shearing of the piston type of present embodiment comprises mother liquor lower contact 1, rubber tube 2, piston 3, cylinder barrel 4, mother liquor top connection 5, piston rod 7 and YE 8, one end of described cylinder barrel 4 is fitted with mother liquor lower contact 1, the other end of cylinder barrel 4 is fitted with mother liquor top connection 5 and the two removably connects, be positioned in the mother liquor top connection 5 of cylinder barrel 4 and be set with piston 3, piston 3 can slide at the outer wall of mother liquor top connection 5 and the inwall of cylinder barrel 4, one end of rubber tube 2 is socketed in the mother liquor lower contact 1 that is positioned at cylinder barrel 4, the other end of rubber tube 2 is socketed in the mother liquor top connection 5 that is positioned at cylinder barrel 4, rubber tube 2, cylinder barrel 4, form a chamber 2-1 between mother liquor lower contact 1 and the piston 3 four, the output of YE 8 is connected with piston rod 7, and piston rod 7 is connected with piston 3.
The elbow 6 of present embodiment is the mother liquor entrance, and mother liquor lower contact 1 is the polymer mother liquor port of export, and polymer mother liquor flows into from elbow 6, and the endoporus of flow through mother liquor top connection 5 and rubber tube 2 flows out from mother liquor lower contact 1.
The specific embodiment two: in conjunction with Fig. 1～Fig. 3 present embodiment is described, the material of the described rubber tube 2 of present embodiment is tartan.So arrange, material is easy to get, and good springiness is easy to install, satisfies the needs of practical adjustments.Other is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1～Fig. 2 present embodiment is described, the material of the described rubber tube 2 of present embodiment is butadiene-styrene rubber, butadiene rubber, isoprene rubber, EP rubbers, neoprene or silicon rubber.So arrange, material is easy to get, and good springiness is easy to install, meets design requirement and the needs of practical adjustments.Other is identical with the specific embodiment two.
The specific embodiment four: in conjunction with Fig. 1～Fig. 3 present embodiment is described, the wall thickness of the described rubber tube 2 of present embodiment is 5mm～8mm.So arrange, good springiness, easy to install, meet design requirement and the needs of practical adjustments.Other is identical with the specific embodiment one or two.
The specific embodiment five: in conjunction with Fig. 1～Fig. 3 present embodiment is described, the described device of present embodiment also comprises elbow 6, and mother liquor top connection 5 is connected with elbow 6.Other is identical with the specific embodiment one or two.
Operating principle
In conjunction with Fig. 1-Fig. 3 operating principle of the present invention is described, form a chamber 2-1 between rubber tube 2, cylinder barrel 4, mother liquor lower contact 1 and the piston 3 four, inject hydraulic oil in the chamber, when YE 8 moves to the mother liquor lower contact by piston rod 7 promotion pistons 3, cavity indoor pressure increases, when this pressure during greater than the pressure of the high pressure polymerisation thing mother liquor in the rubber tube 2 of flowing through, and rubber tube 2 radial compression, the overflow section of high pressure polymerisation thing mother liquor is long-pending to be reduced, and mother liquid flow rate reduces.In contrast, when YE 8 moved to the mother liquor top connection by piston rod 7 drive pistons 3, cavity indoor pressure reduced, rubber tube 2 radial dilatation, and the overflow section of high pressure polymerisation thing mother liquor is long-pending to be increased, and mother liquid flow rate increases.The adjusting of the interior latus rectum by rubber tube 2 realizes the control of the polymer mother liquor flow in the rubber tube, has reduced the polymer mother liquor viscosity loss widely.
Claims (5)
1. piston type hangs down and shears the mother liquid flow rate adjusting device, it is characterized in that: described device comprises mother liquor lower contact (1), rubber tube (2), piston (3), cylinder barrel (4), mother liquor top connection (5), piston rod (7) and YE (8), one end of described cylinder barrel (4) is fitted with mother liquor lower contact (1), the other end of cylinder barrel (4) is fitted with mother liquor top connection (5) and the two removably connects, be positioned in the mother liquor top connection (5) of cylinder barrel (4) and be set with piston (3), piston (3) can slide at the outer wall of mother liquor top connection (5) and the inwall of cylinder barrel (4), one end of rubber tube (2) is socketed in the mother liquor lower contact (1) that is positioned at cylinder barrel (4), the other end of rubber tube (2) is socketed in the mother liquor top connection (5) that is positioned at cylinder barrel (4), rubber tube (2), cylinder barrel (4), form a chamber (2-1) between mother liquor lower contact (1) and the piston (3) four, the output of YE (8) is connected with piston rod (7), and piston rod (7) is connected with piston (3).
2. piston type according to claim 1 hangs down and shears the mother liquid flow rate adjusting device, and it is characterized in that: the material of described rubber tube (2) is tartan.
3. piston type according to claim 2 hangs down and shears the mother liquid flow rate adjusting device, and it is characterized in that: the material of described rubber tube (2) is butadiene-styrene rubber, butadiene rubber, isoprene rubber, EP rubbers, neoprene or silicon rubber.
4. piston type according to claim 1 and 2 hangs down and shears the mother liquid flow rate adjusting device, and it is characterized in that: the wall thickness of described rubber tube (2) is 5mm～8mm.
5. piston type according to claim 1 and 2 hangs down and shears the mother liquid flow rate adjusting device, and it is characterized in that: described device also comprises elbow (6), and mother liquor top connection (5) is connected with elbow (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101899710A CN103256033A (en) | 2013-05-21 | 2013-05-21 | Piston type low shearing mother liquor flow regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101899710A CN103256033A (en) | 2013-05-21 | 2013-05-21 | Piston type low shearing mother liquor flow regulation device |
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| Publication Number | Publication Date |
|---|---|
| CN103256033A true CN103256033A (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101899710A Pending CN103256033A (en) | 2013-05-21 | 2013-05-21 | Piston type low shearing mother liquor flow regulation device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5316261A (en) * | 1992-10-26 | 1994-05-31 | Northern Research & Engineering Corp. | Fluid conduit having a variable inner diameter |
| CN1391051A (en) * | 2002-06-18 | 2003-01-15 | 吴忠仪表股份有限公司 | Multi-purpose electric valve |
| CN2617923Y (en) * | 2003-05-23 | 2004-05-26 | 李淑华 | High pressure diffusing and mixing device for filling well |
| DE102005045016A1 (en) * | 2005-09-21 | 2007-03-29 | Robert Bosch Gmbh | Squeezing valve for locking and releasing conveying stretch, has connecting areas arranged at angle about middle axis of tube unit, which is fixed at connecting areas of end pieces by vulcanizing |
| CN201084018Y (en) * | 2007-10-11 | 2008-07-09 | 浙江奥新仪表有限公司 | Electric anti-shearing low viscosity reduction flow regulation device |
-
2013
- 2013-05-21 CN CN2013101899710A patent/CN103256033A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5316261A (en) * | 1992-10-26 | 1994-05-31 | Northern Research & Engineering Corp. | Fluid conduit having a variable inner diameter |
| CN1391051A (en) * | 2002-06-18 | 2003-01-15 | 吴忠仪表股份有限公司 | Multi-purpose electric valve |
| CN2617923Y (en) * | 2003-05-23 | 2004-05-26 | 李淑华 | High pressure diffusing and mixing device for filling well |
| DE102005045016A1 (en) * | 2005-09-21 | 2007-03-29 | Robert Bosch Gmbh | Squeezing valve for locking and releasing conveying stretch, has connecting areas arranged at angle about middle axis of tube unit, which is fixed at connecting areas of end pieces by vulcanizing |
| CN201084018Y (en) * | 2007-10-11 | 2008-07-09 | 浙江奥新仪表有限公司 | Electric anti-shearing low viscosity reduction flow regulation device |
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Application publication date: 20130821 |