CN2346977Y - Ultrahigh pressure hydraulic dual-action continuous automatic supercharger - Google Patents

Abstract

The utility model relates to an ultrahigh pressure hydraulic dual-action continuous automatic supercharger which is an intermediate transition device using middle and low pressure hydrodynamic system for carrying out a transition from middle and low pressure to high pressure. The utility model can be widely used for oilfield pressurization and water injection engineering. The utility model has the technical proposal that under the condition of an original hydrodynamic system, when working pressure is not satisfied, the utility model is used for improving working pressure. A supercharger main body the middle part of which is provided with a power cylinder and both ends of which are provided with pressurization cylinders is arranged in a frame of a base. The water inlet end of each pressurization cylinder is connected with a liquid inlet one-way valve, and the liquid discharge end of each pressurization cylinder is connected with a liquid discharge one-way valve. A piston in the power cylinder is connected with plungers in the pressurization cylinders into integration, and both ends of the piston are provided with small pistons used for controlling reversal. The utility model can also be used for system working, such as ultrahigh pressure hydraulic cutting and hydraulic ejection perforation.

Description

The continuous self booster of ultrahigh pressure waterpower double-action

The utility model relates to the continuous self booster of a kind of ultrahigh pressure waterpower double-action.Be applicable to the supercharging of oil field pressurized water injection, the cutting of ultrahigh pressure waterpower and water-jet perforate etc.Existing oil field flood pattern is in oil reservoir long-term injecting water process, because the obstruction and the pollution on stratum, water absorbing capacity constantly reduces, be embedded in underground pipeline simultaneously because long-term corrosion, bearing capacity reduces, and does not satisfy the requirement of water injection rate, therefore must carry out pressurized water injection.The pressurized water injection method that adopts has at present: the one, change the lower pipe network of ground loading capacity, and replace the higher high pressure line of bearing capacity, pumping plant is changed high-pressure plunger pump simultaneously; The 2nd, settle the oil hydraulic cylinder of a high-pressure plunger pump or high drive to carry out pressurized water injection at water injection well.These two kinds of water fillings at first will solve the dynamical problem in water filling well site, promptly will set up network supply equipment etc., thereby investment is very high, and use and management difficulty are big.

In order to address the above problem, the utility model provides the double-action of a kind of ultrahigh pressure waterpower continuous self booster, is used as power with original low-pressure water, is injected in the well behind pressurized machine and goes, and improves injection pressure, to solve an oil well high pressure water injection difficult problem.

Be that ram, two ends are the intensifier body of pressurized cylinder in the middle of task of the present utility model is done in such a way that and is provided with in the base shelf.Piston area in the ram is bigger than the plunger sectional area in the pressurized cylinder of two ends.The pressurized cylinder feed-water end is connected with the feed liquor one-way valve, and the pressurized cylinder drain side is connected with the discharge opeing one-way valve, and feed liquor one-way valve inlet connects to come water pipeline, and outlet connects pressurized cylinder.Discharge opeing one-way valve inlet is connected with pressurized cylinder, and water injection well or working site are led in outlet.Piston in the ram and the plunger in the pressurized cylinder are connected as a single entity, and control commutation small piston is equipped with at the piston two ends.Each side connection mouth at power cylinder body two ends respectively is connected with Pilot operated check valve, the inlet of two Pilot operated check valves of power cylinder body one side connects to come water pipeline, outlet connects left and right sides ram respectively, and the inlet of two Pilot operated check valves of power cylinder body opposite side connects ram, and outlet connects return piping.The control interface at power cylinder body two ends is worked hard in glove with valve two end interfaces with hydraulic control respectively and is linked to each other.The liquid mouth that comes of working hard in glove with valve that surges connects to come water pipeline, and two control mouths link to each other with eight control mouths of four Pilot operated check valves respectively, and two backwater mouths link to each other with return piping.Under the to-and-fro motion of the left and right sides of ram inner carrier, promote to work hard in glove with the to-and-fro motion of the valve core left and right sides, realization is surged and is worked hard in glove with the connection on the different liquid of valve road, and closing and opening of control Pilot operated check valve reaches the supercharging work continuously automatically of suction booster.

Fig. 1 is the structure cross-sectional schematic and the schematic flow sheet of the utility model intensifier body, and Fig. 2 is the enlarged view of I part among Fig. 1.Fig. 3 is the enlarged view of II part among Fig. 1, and Fig. 4 is an outline drawing of the present utility model.

As follows to structure of the present utility model and implementation in conjunction with the accompanying drawings:

The utility model be the biside plate intermediate vertical in base 54 frameworks upper ends a centre is set is ram, two ends are the self booster main body 55 of pressurized cylinder.Bolt is connected main body 55 and side plate by warp-wise hole in the middle of the ram 21 and the groove on the flange plate of two ends thereof.Be provided with piston 51 in the ram 21, the screw thread by left and right symmetrically arranged two-piston plunger connected body 43 two is connected with plunger in the pressurized cylinder (17,37) respectively.The water inlet interface at ram two ends (20,40) is communicated with the outlet of Pilot operated check valve (27,32) respectively, the inlet of two Pilot operated check valves respectively with former hydrodynamic force pipeline connection.Ram two ends two discharge opeing liquid joints (16,42) are communicated with the inlet of two discharge opeing control one-way valves (9,7) respectively, the outlet of two discharge opeing Pilot operated check valves is communicated with water return pipeline, intensifier body two ends pressurized cylinders water inlet interfaces (15,39) respectively with feed liquor one-way valve (18,38)) outlet be communicated with, the inlet of two feed liquor one-way valves is communicated with former hydrodynamic force pipeline, two ends pressurized cylinder draining connector (13,41) is communicated with the inlet of two discharge opeing one-way valves (11,1) respectively, and the outlet of two discharge opeing one-way valves connects the supercharging discharge conduit.The small piston 44 that is enclosed within on the piston connected body is sliding fit with little cylinder sleeve 46 in the cylinder body, the one end leans against on the plunger, the other end leans against on the step of connected body 43, move with piston, plunger, in small piston 44, be provided with one-way valve 45, when piston 51 moves to two ends, the ram left and right sides, small piston moves in the little cylinder sleeve thereupon, promote the liquid supercharging in the little cylinder sleeve, pressurized liquid flows to respectively by external connector (19,36) and works hard in glove with in the valve left and right joint (22,34), and the valve core 29 of working hard in glove with that promotes to work hard in glove with in the valve body moves.Be provided with oil pocket being in the piston 51 of sliding fit with cylinder body, fill with butter 52 in the chamber, the piston 53 that moves about is set in the oil pocket, in the middle of the Sealing of piston 51, be provided with a piston centering ring 50, piston centering ring inner and outer surface is provided with groove, garden, the middle part Zhou Fangxiang of piston 51 is provided with three uniform inclined holes 49, be communicated with the groove of centering ring, on piston right-hand member garden Zhou Fangxiang, also be provided with three uniform apertures, it is connected with right power cavity, the low pressure liquid of coming in from this hole promote to move about under the effect of the pressure right-hand member of piston 53 makes it to move to left, butter in the extruding oil pocket, be injected in the centering ring in the outer channel by inclined hole 49, when reciprocating motion of the pistons, the butter in the groove just spreads upon the power inner surface of cylinder block continuously and is lubricated.

Link to each other with oil gun 3 one ends at plunger seal place external tapping 5, the other end of past oily device 3 links to each other with pressurized cylinder drain line 8, and the piston 6 that moves about is arranged in the oil gun 3, and butter 4 is filled with in the piston front.The piston that promotes to move about under the effect of drain line internal pressure is exerted pressure to lubricant oil, and lubricant oil is injected into the sealing surfaces of Sealing by the duct in the centering ring, reaches the purpose of seal lubrication.

Working procedure of the present utility model is as follows:

When (1) positions are in left part shown in Figure 1 at the beginning of working hard in glove with valve core 29, former middle low-pressure system come the road control that comes water inlet 31, spool endoporus 30 flow to work hard in glove with valve of water by working hard in glove with valve 35 mouthfuls 28, by the pipeline that is connected with this control mouth Pilot operated check valve 7 and 27 is opened, Pilot operated check valve 9 and 32 is closed.The water that comes of former middle low-pressure system enters right chamber of ram and right booster cavity respectively by Pilot operated check valve 27 and one-way valve 18.Under the effect that comes water pressure, promote plunger and piston and be moved to the left, because of opening of Pilot operated check valve 7, the left chamber of ram is communicated with water return pipeline.By relation (A+A1) * P former=A * P increases and knows, left booster cavity increased pressure, the size of the ratio that how much depends on (A+A1)/A of increased pressure, A is the plunger cross-section area in the formula, A1 is the poor of the cross-section area of piston and plunger cross-section area.When piston moved to the left part, control commutation small piston 44 entered the control commutation with carrying out supercharging in the little cylinder sleeve 46, and the liquid of supercharging enters by socket and connected pipeline and works hard in glove with valve left side interface 34.Work hard in glove with valve core and move the frictional resistance that produced and right chamber liquid effects under the reaction force of valve core of the spool valve overcoming, promote to work hard in glove with the valve core end that moves right, change the duct of working hard in glove with of working hard in glove with valve.Work hard in glove with coming water interface 31 and working hard in glove with valve control mouth 23 and be communicated with of valve this moment.Come water pressure by this control mouth and coupled pipeline Pilot operated check valve 9 and 32 to be opened, Pilot operated check valve 7 and 27 is closed.Come water to enter the left chamber of ram and enter left pressurized cylinder 37 by one-way valve 38 by Pilot operated check valve 32.Under the effect that comes water pressure, piston and plunger move right.When piston moves to right-hand member, control small piston 44 enters the control commutation with in the little cylinder sleeve 46, promote liquid supercharging wherein, the liquid of supercharging enters by pipeline and works hard in glove with the right interface 22 of valve, work hard in glove with the valve guiding valve and slide the frictional resistance produced and left chamber liquid effects under the reaction force of valve core of the spool valve overcoming, promotion is worked hard in glove with valve core and is moved to the left to the left part, from and can be to the duct of working hard in glove with of working hard in glove with the valve last time.Like this by working hard in glove with the move left and right of spool, work hard in glove with different control ducts and control Pilot operated check valve 7 and 27 and open or close, Pilot operated check valve 9 and 32 closing or opening, thus make piston and the to-and-fro motion of the plunger left and right sides, reach continuous supercharging purpose.

(2) when working hard in glove with the valve core initial position when being in the right part of diagram shown in 1, supercharging realizes that principle is ditto identical.

(3) when working hard in glove with valve core just the position be in neutral position shown in the diagram 1, work hard in glove with valve when coming water inlet 31 and control mouthfuls 23 and 28 all not work hard in glove with, open stop valve 26 or stop valve 33.When opening stop valve 33, the water that comes of former middle low-pressure system enters chamber, a ram left side by this stop valve, power fluid enters by pilot line and works hard in glove with valve left side interface 34, promotes to work hard in glove with the valve core end that moves right, and realizes working hard in glove with valve and comes water management mouth 31 to be communicated with control mouth 23.Work hard in glove with and in time close the stop valve of opening 33 after valve is communicated with.Following supercharging implementation procedure is identical with 1.When opening stop valve 26, reason is the same.

Pilot operated check valve in the utility model (7,9,27,32), stop valve (26,33), air tank 12, safety valve 14 are the commercially available prod or revise the product that forms a little.

The utility model has the advantages that: 1, utilize former low-pressure water to be used as power, do not need additionaling power equipment can finish automatically The pressurized water injection task, and do not change the underground pipeline of laying, thus can save extensive fund, 2, simple in structure, Safe and reliable, be the comparatively desirable booster that can extensively promote the use of.

Claims (1)

1, the continuous self booster of a kind of ultrahigh pressure waterpower double-action, it is characterized in that: it is ram that the biside plate intermediate vertical in base (54) framework upper end is provided with a centre, two ends are the self booster main body (55) of pressurized cylinder, bolt (56) is connected main body (55) and side plate by radial hole in the middle of the ram (21) and the groove on the flange plate of two ends thereof, be provided with piston (51) in the ram (21), screw thread by two-piston plunger connecting body (43) two of being symmetrical set respectively with pressurized cylinder (17,37) plunger in connects as one, the water inlet interface (20 at ram two ends, 40) respectively with Pilot operated check valve (27,32) outlet is communicated with, Pilot operated check valve (27,32) inlet and former hydrodynamic force pipeline connection, two draining connectors (16 in Pilot operated check valve ram two ends, 42) respectively with two discharge opeing Pilot operated check valves (9,7) inlet is communicated with, two discharge opeings use the outlet of Pilot operated check valve to be communicated with water return pipeline, intensifier body two ends pressurized cylinder water inlet interface (15,39) respectively with feed liquor one-way valve (18,38) outlet is communicated with, two ends pressurized cylinder draining connector (13,41) respectively with two discharge opeing one-way valves (11,1) inlet is communicated with, the outlet of two discharge opeing one-way valves connects the supercharging discharge conduit, the little cylinder sleeve (46) that is enclosed within small piston (44) and the cylinder body on the piston connected body is sliding fit, one end of small piston leans against on the plunger, the other end leans against on the step of connected body (43), in small piston (44), be provided with one-way valve (45), external connector (19,36) valve left and right joint (22 is worked hard in glove with in connection respectively, 34), working hard in glove with valve core (29) slides over and works hard in glove with in the valve body, be provided with oil pocket being in the piston (51) of sliding fit with cylinder body, be full of butter (52) in the chamber, the piston (53) that moves about is set in the oil pocket, outside piston (51), be provided with a piston centering ring (50) in the middle of the Sealing in garden, the centering ring inner and outer surface is provided with groove, the middle part of piston (51) is connected with the groove of centering ring along being provided with three uniform inclined holes (49) garden week, link to each other with oil gun (3) one ends at plunger seal place external tapping (5), the piston that moves about (6) is arranged in the oil gun (3), and butter is filled with in the piston front.

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