CN201277137Y - Fluid self-oscillation down-hole generator - Google Patents
Fluid self-oscillation down-hole generator Download PDFInfo
- Publication number
- CN201277137Y CN201277137Y CNU2008201234321U CN200820123432U CN201277137Y CN 201277137 Y CN201277137 Y CN 201277137Y CN U2008201234321 U CNU2008201234321 U CN U2008201234321U CN 200820123432 U CN200820123432 U CN 200820123432U CN 201277137 Y CN201277137 Y CN 201277137Y
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- Prior art keywords
- cone valve
- cavity
- piston
- resorption
- cone
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Abstract
A fluid self-excitation vibration downhole generator providing power supply for downhole tools and downhole devices is characterized in that a cone valve intermediate cavity is arranged between a cone valve upper cavity and a cone valve lower cavity, and is communicated with the cone valve upper cavity and the cone valve lower cavity, and a spool is arranged in the cone valve intermediate cavity. A cone valve inlet flow passage is arranged on a valve body, the cone valve inlet flow passage is communicated with the cone valve intermediate cavity, a cone valve upper cavity flow passage is communicated with the cone valve upper cavity, and a cone valve lower cavity flow passage is communicated with the cone valve lower cavity. A cylindrical piston cavity is arranged on the lower portion of the cone valve lower cavity, a piston is arranged in the piston cavity, and the piston is embedded with a permanent magnetic body, an iron core and a coil are embedded on the inner wall of the piston cavity, a wire is led out from the two ends of the coil, and a piston lower cavity flow passage is arranged on the lower portion of the piston cavity. The downhole generator can provide continuous current for the downhole devices, and can meet the power demands of downhole tools and downhole devices.
Description
Technical field
The utility model relates to the petroleum drilling and mining technical field, particularly a kind of downhole hardware that utilizes downhole fluid energy generating, for downhole instrument and underground equipment provide the device of power supply, be a kind of under oil well, be the downhole generator of power with the fluid.
Background technique
In petroleum industry, often need provide power supply for downhole instrument and underground equipment.
At present, mainly contain two class down-hole power, i.e. battery pack and turbo type alternator.The advantage of battery pack is a compact structure, reliable.The shortcoming of battery pack is that operating life is short; The expense of changing battery pack is also higher; And the operating temperature range of battery pack is limited, can not be in the higher underground work of temperature.The turbo type alternator utilizes fluid to generate electricity for kinetic energy as down-hole power.Downhole fluid promotes the turbine blade rotation and drives generator for electricity generation.The advantage of turbo type alternator is can be for a long time to provide electric power, long working life for downhole instrument and underground equipment.When the shortcoming of turbo type alternator was the rotation of fluid promotion turbine blade, fluid was serious to the turbine blade erosion, just needed maintenance after work a period of time and changed turbine blade, and user cost is than higher.The turbogenerator utilization only be fluid dynamic energy generating.
International and the domestic downhole generator of utilizing downhole fluid energy generating in addition, but the generator case of fluid self-oscillation principle do not used.
The model utility content
The purpose of this utility model is: a kind of fluid self-oscillation downhole generator is provided, can utilize the energy of downhole fluid, comprise fluid dynamic energy and fluid pressure energy, fluid energy is converted to electric energy, for downhole instrument and equipment provide a kind of new form of power in the down-hole.
The technical solution adopted in the utility model is: fluid self-oscillation downhole generator, mainly form by valve body, cone valve part and piston power generation part, and it is characterized in that: valve body is cylindrical.Cone valve partly comprises spool, and cylindrical cone valve epicoele and cylindrical cone valve cavity of resorption are arranged on valve body top, between cone valve epicoele and cone valve cavity of resorption the cone valve lumen is arranged, and cone valve epicoele and cone valve cavity of resorption are communicated with the cone valve lumen.In the cone valve lumen, spool is arranged.
Be drilled with the cone valve entrance channel in the valve body upper-end surface, the cone valve entrance channel is communicated with the cone valve lumen.Liquid can enter the cone valve lumen by the cone valve entrance channel.
Be drilled with cone valve epicoele runner at the valve body lower end face, cone valve epicoele runner is communicated with the cone valve epicoele.Liquid in the cone valve epicoele can flow out by cone valve epicoele runner.
Be drilled with cone valve cavity of resorption runner at the valve body lower end face, cone valve cavity of resorption runner is communicated with the cone valve cavity of resorption.Liquid in the cone valve cavity of resorption can flow out by cone valve cavity of resorption runner.
When highly pressurised liquid enters the cone valve lumen by the cone valve entrance channel, spool is produced from concussion.
Power generation part is that a cylindrical piston chamber is arranged in the bottom of cone valve cavity of resorption.Cylindrical piston is arranged in piston cavity, be inlaid with permanent magnet on the outer wall of piston.Be inlaid with iron core and coil on the piston cavity inwall, the two ends of coil have lead to draw.Piston cavity of resorption runner is arranged, the pressure of piston cavity of resorption runner energy equalizing piston upper end and piston lower end in the bottom of piston cavity.When piston pumps, drive the permanent magnet to-and-fro motion, coil cutting magnetic line produces electric current.Those skilled in the art know the electricity generating principle and the structure of permanent magnet, iron core and coil, are not described in detail.
Described spool is cylindrical, and the two ends of spool have conical surface respectively.
In order to control the flow of fluid, in cone valve epicoele runner and cone valve cavity of resorption runner, restriction is arranged respectively.
Can drive piston motion when vibrating, between spool and piston, spring be arranged for spool.Spring is a spiral compression spring.
In order sealing liquid can not to be entered in the iron core, the two seals circle to be arranged on the inwall of piston cavity, the two seals circle is respectively in the top of iron core and the bottom of iron core.
Fluid self-oscillation downhole generator is fixed in the columniform housing.Have highly pressurised liquid to enter the cone valve entrance channel in housing, spool produces from concussion.Spool drives piston from concussion by spring and back and forth shakes, and coil can send electric current, for downhole instrument provides electric energy.
The beneficial effects of the utility model: the utility model fluid self-oscillation downhole generator is installed in the down-hole, can provide uninterrupted electric current for downhole instrument, can satisfy the electric power needs of downhole instrument and equipment.Fluid is less through the pressure loss that generator produces, and does not influence the proper flow of fluid.
Description of drawings
Fig. 1 is the utility model fluid self-oscillation downhole generator structural profile schematic representation.
Among the figure, 1. cone valve epicoele, 2. spool, 3. cone valve epicoele runner, 4. cone valve cavity of resorption, 5. spring, 6. seal ring, 7. iron core, 8. coil, 9. piston cavity of resorption runner, 10. restriction, 11. cone valve entrance channels, 12. cone valve cavity of resorption runner, 13. permanent magnets, 14. pistons, 15. valve bodies, 16. housings.
Embodiment
Embodiment 1: with housing 16 external diameters is that 172 millimeters fluid self-oscillation downhole generator is an example, and the utility model is described in further detail.
Consult Fig. 1.The utility model fluid self-oscillation downhole generator is made up of valve body 15, cone valve part and piston power generation part.Valve body 15 is cylindrical, and external diameter is 132 millimeters, and length is 1000 millimeters.Valve body 15 is fixed together by two semicylinders and makes.
A cylindrical cone valve epicoele 1 and a cylindrical cone valve cavity of resorption 4 are arranged on valve body 15 tops, between cone valve epicoele 1 and cone valve cavity of resorption 4 the cone valve lumen is arranged, cone valve epicoele 1 and cone valve cavity of resorption 4 are communicated with the cone valve lumen.Cone valve epicoele 1 and cone valve cavity of resorption 4 diameters are 38 millimeters, and the cone valve lumen is 60 millimeters.Spool 2 is arranged in the cone valve lumen.Spool 2 is cylindrical, and the two ends of spool 2 have conical surface respectively.Spool 2 can concussion up and down in the cone valve lumen.
Be drilled with cone valve entrance channel 11 in valve body 15 upper-end surfaces, cone valve entrance channel 11 is communicated with the cone valve lumen.Valve body is the high pressure side more than 15 upper-end surfaces, and the high pressure liquid physical efficiency enters the cone valve lumen by cone valve entrance channel 11.
Be drilled with cone valve epicoele runner 3 in valve body 15 lower end surfaces, cone valve epicoele runner 3 is communicated with cone valve epicoele 1.Valve body is a low voltage side below 15 lower end surfaces, and the liquid in the cone valve epicoele 1 can flow out by cone valve epicoele runner 3.At cone valve epicoele runner 3 internal fixation a restriction 10 is arranged.Restriction 10 is the cylindrical bodys that internal diameter is less, can control the flow of runner by fluid.
Be drilled with cone valve cavity of resorption runner 12 in valve body 15 lower end surfaces, cone valve cavity of resorption runner 12 is communicated with cone valve cavity of resorption 4.Liquid in the cone valve cavity of resorption 4 can flow out by cone valve cavity of resorption runner 12.Be fixed with a restriction 10 at cone valve cavity of resorption runner 12.
Power generation part is that a cylindrical piston chamber is arranged in the bottom of cone valve cavity of resorption 4, and the diameter of piston cavity is 50 millimeters.Cylindrical piston 14 is arranged in piston cavity, be inlaid with permanent magnet 13 on the outer wall of piston 14.Be inlaid with iron core 7 and coil 8 on the piston cavity inwall, the two ends of coil 8 have lead to draw.Piston cavity of resorption runner 9 is arranged in the bottom of piston cavity, and piston cavity of resorption runner 9 is communicated with cone valve epicoele runner 3.
A spiral compression spring 5 is arranged between spool 2 and piston 14.Two seals circle 6 is arranged on the inwall of piston cavity, and two seals circle 6 is respectively in the top of iron core 7 and the bottom of iron core 7.
At last, fluid self-oscillation downhole generator is fixed in the columniform housing 16.
The working principle of summary fluid self-oscillation downhole generator helps to understand the utility model.Fluid self-oscillation downhole generator is fixed under the housing 16 interior also mounting shafts.Pressure fluid flows in the valve body 15 from cone valve entrance channel 11, flows out from restriction 10, and pressure has certain decline.The pressure energy that fluid reduces is converted into electric energy.Working principle is as follows: spool 2 and piston 14 have an equinoctial point, are subjected to the effect of equilibrant at this equinoctial point upper valve core 2 and piston 14, keep state of rest, but this are unsettled equinoctial points.When fluid flows through, because certain small disturbance makes spool 2 leave the position (upwards leaving the equinoctial point analytical method similarly) of equinoctial point downwards, the transient drag that fluid flows into cone valve epicoele 1 is littler than the transient drag that flows into cone valve cavity of resorption 4, causes pressure ratio cone valve cavity of resorption 4 height of cone valve epicoele 1.The flow that flows into cone valve epicoele 1 increases, and the flow that flows into cone valve cavity of resorption 4 simultaneously reduces, and this also causes making a concerted effort downwards of the suffered power of surging of spool 2, simultaneously the suffered hydraulic coupling of spool 2 make a concerted effort also downward.Make a concerted effort to make spool 2 further to move downward for these two, make cone valve epicoele 1 pressure cone valve cavity of resorption 4 pressure that constantly raise constantly descend.Because cone valve epicoele 1 is identical with cavity pressure under the piston, cone valve cavity of resorption 4 is identical with piston upper chamber pressure, pressure reduction makes piston 14 pressure spring 5 that moves up, it is big that the thrust that 5 pairs of spools 2 of spring make progress becomes, during the making a concerted effort downwards of the hydraulic coupling that is subjected to greater than spool 2 when this thrust and the power of surging, spool 2 begins to move up.When spool 2 is upwards crossed equinoctial point, the making a concerted effort of the hydraulic coupling that spool 2 is subjected to and the power of surging change direction into upwards, spool 2 further moves up, and piston upper chamber pressure is greater than cavity pressure under the piston, the deceleration of motion that piston 14 makes progress, speed are reduced to zero and are begun to move downward with back piston 14.5 pairs of spools of spring, 2 downward pulling force become big, and when pulling force was made a concerted effort greater than making progress of spool 2 hydraulic coupling that is subjected to and the power of surging, spool 2 began again to move down.So circulation, spool 2 has formed the fluid self-oscillation, and spool 2 is respectively the to-and-fro motion that the cycle is identical, phase place is different with piston 14.Because on the piston 14 permanent magnet 13 is arranged, there is coil 8 relevant position of piston cylinder.When piston 14 was made automatic reciprocating motion, permanent magnet 13 made the magnetic flux change by coil 8 produce electric energy, can provide electric energy for downhole instrument.
Claims (5)
1, a kind of fluid self-oscillation downhole generator, mainly form by valve body (15), cone valve part and piston power generation part, it is characterized in that: valve body (15) is for cylindrical, cone valve partly comprises spool (2), on valve body (15) top cylindrical cone valve epicoele (1) and cylindrical cone valve cavity of resorption (4) are arranged, between cone valve epicoele (1) and cone valve cavity of resorption (4) the cone valve lumen is arranged, cone valve epicoele (1) and cone valve cavity of resorption 4 are communicated with the cone valve lumen, and spool (2) is arranged in the cone valve lumen;
Be drilled with cone valve entrance channel (11) in valve body (15) upper-end surface, cone valve entrance channel (11) is communicated with the cone valve lumen;
Be drilled with cone valve epicoele runner (3) in valve body (15) lower end surface, cone valve epicoele runner (3) is communicated with cone valve epicoele (1);
Be drilled with cone valve cavity of resorption runner (12) in valve body (15) lower end surface, cone valve cavity of resorption runner (12) is communicated with cone valve cavity of resorption (4);
Power generation part is in the bottom of cone valve cavity of resorption (4) a cylindrical piston chamber to be arranged, cylindrical piston (14) is arranged in piston cavity, be inlaid with permanent magnet (13) on the outer wall of piston (14), on the piston cavity inwall, be inlaid with iron core (7) and coil (8), the two ends of coil (8) have lead to draw, and piston cavity of resorption runner (9) is arranged in the bottom of piston cavity.
2, fluid self-oscillation downhole generator according to claim 1 is characterized in that: described spool (2) is for cylindrical, and the two ends of spool (2) have conical surface respectively.
3, fluid self-oscillation downhole generator according to claim 1 is characterized in that: in cone valve epicoele runner (3) and cone valve cavity of resorption runner (12) restriction (10) is arranged respectively.
4, fluid self-oscillation downhole generator according to claim 1 is characterized in that: between spool (2) and piston (14) spring (5) is arranged, spring (5) is a spiral compression spring.
5, according to claim 1 or 2 or 3 or 4 described fluid self-oscillation downhole generator, it is characterized in that: two seals circle (6) is arranged on the inwall of piston cavity, and two seals circle (6) is respectively in the top of iron core (7) and the bottom of iron core (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201234321U CN201277137Y (en) | 2008-10-30 | 2008-10-30 | Fluid self-oscillation down-hole generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201234321U CN201277137Y (en) | 2008-10-30 | 2008-10-30 | Fluid self-oscillation down-hole generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277137Y true CN201277137Y (en) | 2009-07-22 |
Family
ID=40894723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201234321U Expired - Lifetime CN201277137Y (en) | 2008-10-30 | 2008-10-30 | Fluid self-oscillation down-hole generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277137Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312113A (en) * | 2013-06-14 | 2013-09-18 | 西南石油大学 | Underground throttling power generation assembly |
| CN117595604A (en) * | 2024-01-18 | 2024-02-23 | 东营千禧龙科工贸有限公司 | Vibration generator for pipeline |
-
2008
- 2008-10-30 CN CNU2008201234321U patent/CN201277137Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312113A (en) * | 2013-06-14 | 2013-09-18 | 西南石油大学 | Underground throttling power generation assembly |
| CN117595604A (en) * | 2024-01-18 | 2024-02-23 | 东营千禧龙科工贸有限公司 | Vibration generator for pipeline |
| CN117595604B (en) * | 2024-01-18 | 2024-04-12 | 东营千禧龙科工贸有限公司 | Vibration generator for pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090722 |
|
| CX01 | Expiry of patent term |