CN100510427C - Fluid booster - Google Patents
Fluid booster Download PDFInfo
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- CN100510427C CN100510427C CNB2005100890606A CN200510089060A CN100510427C CN 100510427 C CN100510427 C CN 100510427C CN B2005100890606 A CNB2005100890606 A CN B2005100890606A CN 200510089060 A CN200510089060 A CN 200510089060A CN 100510427 C CN100510427 C CN 100510427C
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Abstract
The invention relates to a fluid pressurizing machine, which comprises an input piston cylinder and an output piston cylinder connected between the input channel and the output channel, wherein the input and output pistons are connected via the piston rod, while the input piston is larger than the output piston; the dual-stable ejection element is connected between the input and the output piston cylinders, while it comprises the first and second switch channels and liquid outlet; the first switch channel is through to the upper chamber of input piston cylinder; the liquid outlet is through to the discharge channel via the throttle element; the channel between the throttle element and the liquid outlet is the throttle branch; the lower chamber of output piston cylinder is through to the throttle branch via the one-way guider. The invention can be used in the condition that the tube type and mounting space are limited, to be used in oil well, to pressurize the well liquid, to improve the ejection pressure at the bottom and improve the drilling speed.
Description
Technical field
The present invention relates to a kind of supercharging device, is a kind of fluid-charger specifically.
Background technique
The fluid pressurized device is the device that is widely used in carrying out to working fluid in hydraulic pressure or the pressure system supercharging.The high-pressure spray supercharging device is exactly a kind of fluid-charger, and it generally is to use gear pump, reciprocating pump and plunger pump, adopts multiple directional control valve and logic control valve to make up and realizes pressurized effect.The power resources of those supercharging devices concentrate on Mechanical Driven, and the size of corollary equipment is huge, are not suitable for the restricted place of tubular type and installing space.For example, in constructions such as geological drilling, oil drilling and hole driving, use existing high-pressure spray implement and receive constraint.
The method of oil drilling is that drill bit rotates to realize that mechanical tooth breaks rock at present, and wherein the pump pressure of the speed of oil drilling and drilling pump is closely related.Test shows, further improves pump pressure, can improve bit speed greatly.But consider from equipment is convenient, the significantly raising of drilling well pump pressure, the technical existence of drilling pump itself difficulty that is difficult to overcome not only, and the manifold of ground of pump and DRILL-STRING SYSTEM are also held and be can't stand, and wherein also to relate to the redesign and the development problem of a whole set of drilling equipment transmission system, therefore difficult to realize with regard to state-of-the-art.
Therefore, be necessary to provide a kind of equipment size little,, solve the above-mentioned defective that existing supercharging device exists applicable to the fluid-charger in pipe type and the restricted place of installing space.
Summary of the invention
Technical problem to be solved by this invention is, a kind of fluid-charger is provided, and it is particularly useful for being installed on the drilling bit applicable to the place of pipe type and installing space restriction, is used to improve the shaft bottom jet pressure, thereby improves bit speed.
Above-mentioned technical problem of the present invention can adopt following technological scheme to solve, a kind of fluid-charger, comprise the input piston cylinder and the output piston cylinder that are connected between input duct and the delivery channel, input piston is fixedlyed connected by piston rod with output piston, and the input piston area is greater than the output piston area, it is characterized in that, between input duct and input piston cylinder, be connected with the bistable fluidic element, this bistable fluidic element comprise can be attached wall switch first and second switch runner and liquid ports, wherein first switches the epicoele that runner is communicated in the input piston cylinder, the cavity of resorption of described input piston cylinder is communicated in second by a changement and switches runner or be communicated in a current by pass, described liquid port is communicated in this current by pass by throttle element, runner between throttle element and the liquid port forms the throttling branch road, and the cavity of resorption of described output piston cylinder is communicated in this throttling branch road by unidirectional breakover element.
The bistable fluidic element that is adopted among the present invention is to utilize the wall attachment effect of jet and make a kind of fluidic element commonly used.The shape of this bistable fluidic element generally is symmetrical fully, and it can cause jet to adhere on arbitrary side wall surface and steady flow owing to attached wall switches.According to attached wall and the switching characteristic that the bistable fluidic element is had, this bistable fluidic element can switch when two pressure that switch runner change, and is attached in the less switching runner of pressure and carries out steady flow.
In the present invention, described input piston cylinder can be two or more piston cylinders and is in series and forms, and connects by piston rod between the adjacent pistons, and the cavity of resorption of those piston cylinders is connected.
As a concrete example, described piston rod can be hollow-core construction, and the cavity of resorption of those piston cylinders is connected by the box type piston bar.
In the present invention, can further on input duct, be parallel with the overflow branch road, so that take place when too high at the flow of input duct, can be by this overflow branch road shunting, thus adapt to the changes in flow rate of input duct.
Above-mentioned overflow branch road is for being communicated in the branch road of current by pass by relief valve.
As the selectable example of another one, described overflow branch road is for directly being communicated in the branch road of throttling branch road.
In the present invention, described changement is a two position three way directional control valve, and the controlled cavity of resorption at described input piston cylinder of this two position three-way valve is being communicated in second and is switching the position of runner or be communicated between the position of a current by pass and switch.
As a concrete example, described changement is the two-position three way reversing slide valve, comprises the valve pocket that is fixed in the input piston cylinder cavity of resorption and slide being arranged at spool in this valve pocket, can be by the slip of spool in valve pocket, and switch between the two positions.
Further, described spool has the clamping part that protrudes in valve pocket, the above and below that is positioned at this spool on the piston rod of input piston is corresponding respectively to be provided with and to match with this clamping part and promote the support surface of sliding in this clamping part, thereby when input piston moves to support surface and the contacted position of spool, promote spool by this support surface and slide, thereby make the changement commutation.
Fluid-charger of the present invention, because it is adopt the bistable fluidic element, simple in structure, volume is little, can satisfy the requirement of less working space to the jet supercharging.Especially fluid-charger of the present invention can be applicable in the oil drilling, this fluid-charger can be installed in the shaft bottom part circulating fluid is carried out supercharging output, make the output high-pressure spray produce cutting and crushing, improve the overall efficiency of well drilling and rock crushing, accelerate bit speed bottom rock.
Description of drawings
A kind of enforcement structural representation of Fig. 1 fluid-charger of the present invention;
Fig. 2 fluid-charger piston of the present invention is in the structural representation when upper;
Fig. 3 fluid-charger piston of the present invention is in the next structural representation;
Another of Fig. 4 fluid-charger of the present invention implemented structural representation.
Embodiment
Shown in Fig. 1-4, fluid-charger of the present invention, comprise the input piston cylinder 3 and the output piston cylinder 4 that are connected between input duct 1 and the delivery channel 2, input piston 31 is fixedlyed connected by piston rod 42 with output piston 41, and the area of input piston 31 is greater than the area of output piston 41, between input duct 1 and input piston cylinder 3, be connected with bistable fluidic element 6, this bistable fluidic element 6 comprise can be attached wall switch first and second switch runners 61,62 and liquid port 63, wherein first switches the epicoele 32 that runner 61 is communicated in input piston cylinder 3, the cavity of resorption 33 of input piston cylinder 3 is communicated in second by a changement and switches runner 62 or be communicated in a current by pass 5, described liquid port 63 is communicated in this current by pass 5 by throttle element 71, runner between throttle element 71 and the liquid port 63 forms throttling branch road 7, and the cavity of resorption 43 of described output piston cylinder 4 is communicated in this throttling branch road 7 by unidirectional breakover element 44.
Like this, as shown in Figure 2, suppose that input piston 31 is positioned at upper (being upper dead center) of piston cylinder 3, the controlled cavity of resorption 33 that makes input piston cylinder 3 of changement this moment is closed with second communication passage of switching runner 62 and is opened the cavity of resorption 33 of input piston cylinder 3 and the communication passage of current by pass 5, second of bistable this moment fluidic element switches the influence that runner 62 is subjected to back pressure, hydrodynamic pressure increases, make the attached wall of fluid switch runner 61 1 sides in first, and first switch the epicoele 32 that runner 61 enters input piston cylinder 3 by this, simultaneously because the effect of throttle element 71, make be communicated with the road 7 of throttling first switch hydrodynamic pressure in the runner 61 greater than the hydrodynamic pressure in input piston cylinder 3 cavity of resorptions 33 that are communicated in current by pass 5, thereby input piston 31 moves downward under this differential pressure action, the output piston 41 that drives output piston cylinder 4 simultaneously moves downward, fluid in the output piston cylinder 4 is by the output of delivery channel 2 high-pressure sprays, and the fluid in input piston cylinder 3 cavity of resorptions 33 is by current by pass 5 earial drainages.As shown in Figure 3, when the input piston 31 of input piston cylinder 3 moves to the next (being lower dead centre), the controlled commutation of changement, the cavity of resorption 33 that makes input piston cylinder 3 is closed with the communication passage of current by pass 5 and is opened the communication passage of cavity of resorption 33 with the second switching runner 62 of input piston cylinder 3, the epicoele 32 of input piston cylinder 3 increases in back pressure effect downforce at this moment, the first switching runner, 61 pressure that are communicated with epicoele 32 are increased, the attached wall of fluid of input duct 1 input switches to second and switches runner 62, and in the cavity of resorption 33 by these second switching runner, 62 inflow input piston cylinders 3, under cavity of resorption 33 and epicoele 32 hydrodynamic difference effects, promoting input piston 31 moves upward, the output piston 41 of output piston cylinder 4 moves upward thereupon, the cavity of resorption 43 of output piston cylinder 4 mends working fluid by unidirectional breakover element 44 simultaneously, when input piston 31 moves to upper (being upper dead center), the controlled commutation of changement, make the cavity of resorption 33 and second communication passage of switching runner 62 of input piston cylinder 3 close and open the cavity of resorption 33 of input piston cylinder 3 and the communication passage of current by pass 5, begin next high-pressure spray output and circulate.
In above-mentioned fluid pressurized process of the present invention, owing to be the attached wall switching characteristic that adopts fluidic element, and realize switching that input piston 31 moves up and down in conjunction with the differential pressure action of the commutation of changement and throttle element 71, with existing application machine driven pump and adopt multiple directional control valve and logic control valve to make up the supercharging device of realizing supercharging and compare, simple in structure, volume is little, can satisfy the requirement of less working space to the jet supercharging.
Especially as shown in Figure 4, fluid-charger of the present invention can be connected and installed on the drill bit in shaft bottom by last lower contact and be applied in the oil drilling, this moment, working fluid was a drilling fluid, this fluid-charger can carry out supercharging to the part circulating fluid in the shaft bottom, and output to bit nozzle, make the high-pressure spray of output produce cutting and crushing, thereby improve the overall efficiency of well drilling and rock crushing, accelerate bit speed bottom rock.
Shown in Fig. 1-4, in the present invention, described input piston cylinder 3 can be two or more piston cylinders and is in series and forms, be connected by piston rod 34 between the adjacent pistons 31, and the cavity of resorption 33 of those piston cylinders is connected, and can increase the gross area of input piston 31 under the situation that does not increase the fluid-charger sectional area like this, thereby the increase pressure ratio, and more be adapted in the narrower and small pipeline in space.The number of this piston cylinder series connection can be determined according to the area of required pressure ratio and each piston, in the accompanying drawing of present embodiment, be that example illustrates only with two piston cylinder series connection, the example of two above piston cylinder series connection is similar with it, gives an example no longer one by one.
Shown in Fig. 1-4, as a concrete example, described piston rod 34 can be hollow-core construction, and the cavity of resorption 33 of those piston cylinders is connected by box type piston bar 34.
As shown in Figure 4, in the present invention, can further on input duct, be parallel with overflow branch road 9, so that take place when too high at the flow of input duct 1, can be by this overflow branch road 9 shuntings, thus adapt to the changes in flow rate of input duct 1.
Above-mentioned overflow branch road 9 can be the branch road that is communicated in current by pass 5 by relief valve, and is not shown, and spillway discharge wherein can be determined by the cracking pressure of setting relief valve.
As the selectable example of another one, as shown in Figure 4, described overflow branch road 9 is for directly being communicated in the branch road of throttling branch road 7, like this when the flow in the input duct 1 is too high, part fluid can behind throttling branch road 7, enter current by pass 5 earial drainages by after 7 shuntings of overflow branch road.
In the present invention, shown in Fig. 1-4, described changement can be two position three way directional control valve 8, and these two position three-way valve 8 controlled cavity of resorptions 33 at described input piston cylinder 3 are communicated in second and switch the position of runner 62 or be communicated between the position of current by pass 5 and switch.Shown in Fig. 1-4, this two position three way directional control valve 8 can specifically have connecting port A, P, B, wherein connecting port A is communicated in the second switching runner 62, connecting port P is communicated in the cavity of resorption 33 of input piston cylinder 3, and connecting port B is communicated in current by pass 5, these selector valve 8 controlled commutations make connecting port P be communicated with connecting port A or connecting port B, switch the position of runner 62 or are communicated between the position of current by pass 5 and switch thereby the cavity of resorption 33 that is implemented in described input piston cylinder 3 is communicated in second.
This two position three way directional control valve 8 can be stroke control valve, controls this switching of two position three way directional control valve 8 between diverse location by the diverse location of piston motion.
The Sliding Control of the spool 82 of this two-position three way reversing slide valve can be controlled automatically by the position that moves up and down of input piston 31.As an object lesson of controlling automatically by the upper-lower position of input piston 31, described spool 82 has the clamping part 83 that protrudes in valve pocket 81, the above and below that is positioned at this spool 82 on the piston rod of input piston 31 is corresponding respectively to be provided with and to match with this clamping part 83 and promote the support surface of sliding in this clamping part 83 84, thereby when input piston 31 moves to support surface 84 with spool 82 contacted positions, promote spool 82 by this support surface 84 and slide, thereby make the changement commutation.
In present embodiment was in series the example of input piston cylinder 3 with two piston cylinders, support surface 84 can be made of the lower surface of first order input piston 31 and the upper surface of second level input piston 31 respectively up and down.
Like this, as shown in Figure 2, be in when upper at input piston 31, second level series connection input piston 31 is resisted against valve pocket 81 bottoms, clamping part 83 is pushed in the valve pocket 81, the communication passage that the cavity of resorption 33 and second that makes selector valve 8 commutate to input piston cylinder 3 switches runner 62 is closed and position that the cavity of resorption 33 of input piston cylinder 3 and the communication passage of current by pass 5 are opened, and be in when the next when input piston 31, first order input piston 31 is resisted against valve pocket 81 tops, clamping part 83 is pushed in the valve pocket 81, and the cavity of resorption 33 that makes selector valve 8 commutate to input piston cylinder 3 is closed and the cavity of resorption 33 of input piston cylinder 3 and the position that second communication passage of switching runner 62 is opened with the communication passage of current by pass 5.Adopt this structure, the commutation of selector valve 8 is at input piston 31 by replacing of input piston 31 and upper and the nextly commutates between the two positions automatically, thereby omitted existing complicated commutation control structure, made the structure of fluid-charger of the present invention more simple.
The foregoing description is several embodiment of the present invention, only is used to the present invention is described but not is used to limit the present invention.For example, the example of fluid-charger of the present invention in can be applicable to oil drilling, also can use in other flow booster technologies as hole excavation, high-pressure spray cutting etc.
Claims (9)
1, a kind of fluid-charger, comprise the input piston cylinder and the output piston cylinder that are connected between input duct and the delivery channel, input piston is fixedlyed connected by piston rod with output piston, and the input piston area is greater than the output piston area, it is characterized in that, between input duct and input piston cylinder, be connected with the bistable fluidic element, this bistable fluidic element comprise can be attached wall switch first and second switch runner and liquid ports, wherein first switches the epicoele that runner is communicated in the input piston cylinder, the cavity of resorption of described input piston cylinder is communicated in second by a changement and switches runner or be communicated in a current by pass, described liquid port is communicated in this current by pass by a throttle element, runner between throttle element and the liquid port forms the throttling branch road, and the cavity of resorption of described output piston cylinder is communicated in this throttling branch road by unidirectional breakover element.
2, fluid-charger as claimed in claim 1 is characterized in that, described input piston cylinder forms for two or more piston cylinders are in series, and connects by piston rod between the adjacent pistons, and the cavity of resorption of these piston cylinders is connected.
3, fluid-charger as claimed in claim 2 is characterized in that, the piston rod between the described adjacent input piston is a hollow-core construction, and the cavity of resorption of these piston cylinders is connected by the box type piston bar.
4, fluid-charger as claimed in claim 1 is characterized in that, is parallel with the overflow branch road on input duct.
5, fluid-charger as claimed in claim 4 is characterized in that, described overflow branch road is for being communicated in the branch road of current by pass by relief valve.
6, fluid-charger as claimed in claim 4 is characterized in that, described overflow branch road is for directly being communicated in the branch road of throttling branch road.
7, fluid-charger as claimed in claim 1, it is characterized in that, described changement is a two position three way directional control valve, and the cavity of resorption that this two position three-way valve is controlled described input piston cylinder switches the position of runner or is communicated between the position of described current by pass and switch being communicated in second.
8, fluid-charger as claimed in claim 7, it is characterized in that described changement is the two-position three way reversing slide valve, comprise the valve pocket that is fixed in the input piston cylinder cavity of resorption and slide being arranged at spool in this valve pocket, by the slip of spool in valve pocket, and switch between the two positions.
9, fluid-charger as claimed in claim 8, it is characterized in that, described spool has the clamping part that protrudes in valve pocket, and the above and below that is positioned at this spool on the piston rod of input piston is corresponding respectively to be provided with and to match with this clamping part and promote the support surface of sliding in this clamping part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100890606A CN100510427C (en) | 2005-08-03 | 2005-08-03 | Fluid booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100890606A CN100510427C (en) | 2005-08-03 | 2005-08-03 | Fluid booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1908452A CN1908452A (en) | 2007-02-07 |
| CN100510427C true CN100510427C (en) | 2009-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100890606A Expired - Fee Related CN100510427C (en) | 2005-08-03 | 2005-08-03 | Fluid booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100510427C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236158B (en) * | 2021-04-19 | 2023-05-23 | 中煤科工集团淮北***技术研究院有限公司 | Hole supercharger for high-pressure jet auxiliary drilling and working method thereof |
| CN117646750B (en) * | 2023-10-20 | 2024-07-12 | 河北尚泰合力液压元件有限公司 | Roofbolter and hydraulic propulsion system thereof |
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2005
- 2005-08-03 CN CNB2005100890606A patent/CN100510427C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1908452A (en) | 2007-02-07 |
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Granted publication date: 20090708 Termination date: 20120803 |