CN205331697U - Axial -flow type mud pulse slowly -releasing ware - Google Patents
Axial -flow type mud pulse slowly -releasing ware Download PDFInfo
- Publication number
- CN205331697U CN205331697U CN201521091457.4U CN201521091457U CN205331697U CN 205331697 U CN205331697 U CN 205331697U CN 201521091457 U CN201521091457 U CN 201521091457U CN 205331697 U CN205331697 U CN 205331697U
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- outlet
- rubber inner
- pressure gauge
- overcoat
- axial
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Abstract
The utility model discloses an axial -flow type mud pulse slowly -releasing ware, including the cavity of filling inert gas, the cavity includes overcoat and rubber inner tube, and first outlet pipe and second outlet pipe are connected respectively to rubber inner tube both ends, the internal diameter of first outlet pipe and second outlet pipe equals and is less than the internal diameter of rubber inner tube. The inert gas that this axial -flow type mud pulse slowly -releasing ware fills between through major diameter cavity and rubber inner tube and urceolus reduces pressure oscillation and the flow pulsation of absorbing in the pipeline. In addition, utilize the adjustable mechanism that has taken rectangular thread's mud inlet tube, the compression spring in advance who installs additional and rubber inner tube self elastic design (allowable stress design), through the outer tensile rubber inner tube of regulation rotary drum of rotatory end cover, change packing element's rigidity to adapt to the mud stream of different parameters, play the effect that furthest reduces the mud pulse. Last, mud pulse slowly -releasing ware has adopted split type design, although part quantity relative increment has reduced the degree of difficulty of part manufacture.
Description
Technical field
This utility model relates to a kind of damping apparatus, particularly relates to a kind of axial-flow type mud-pulse slow release device。
Background technology
Conventionally, as the feature in drilling mud pump self structure, and its special working environment and transmission medium, the pressure oscillation problem that flow pulsation causes also is always up the difficult problem that slush pump emphasis solves。Especially for plunger displacement pump, flow pulsation is one of key index weighing pump performance, and reduction compression shock and noise are had highly important meaning by the flow pulsation reduced in water pressure plunger pump assignment process。
Boring in deep-well, the vertical pressure of drill string up to more than 20MPa-52Mpa, the unexpected heavy duty out of control of slush pump, the entrance of slush pump outlet must cause higher surge pressure。In scene, owing to considering to stop the surge pressure that pump causes, kelly bar is installed single-phase check valves, though preventing drilling fluid return in drilling rod, but can not eliminating mud pump inlet pipeline generation larger fluctuation pressure, higher surge pressure can bring potential safety hazard to drillng operation。
Adopting pulse damper is the method reducing pressure oscillation commonly used in hydraulic system。But for mud circulating system, the working environment special because of it and transmission medium, the pulse damper being applied to hydraulic system is very difficult to apply in mud circulating system, even if there being use, slow release effect is also unsatisfactory。
Utility model content
For above-mentioned shortcoming and defect of the prior art, the purpose of this utility model is in that to provide a kind of axial-flow type mud-pulse slow release device being connected in mud circulating system, thus obtaining stable pump pressure, and protects equipment and instrument。
The purpose of this utility model is achieved through the following technical solutions:
A kind of axial-flow type mud-pulse slow release device, including the cavity filling noble gas, described cavity includes overcoat and rubber inner core, and rubber inner core two ends connect the first outlet and the second outlet respectively, and the internal diameter of described first outlet and the second outlet is equal and internal diameter less than rubber inner core。
Preferably, the end of described first outlet extend in rubber inner core, described first outlet outer wall radially stretches out and forms the first sealing plate, and described first sealing plate is with overcoat matched in clearance, and the gap between the first sealing plate and overcoat arranges combined seal ring；The end that is inserted into of described rubber inner core radially extends inwardly to and forms the first connecting portion on the outer wall being fitted in the first outlet；Arranging holder in the first connecting portion, described holder is enclosed within the first outlet leg portions extending in rubber inner core；Described first sealing plate and holder are clamped the first connecting portion and are bolted on together。
Preferably, the end of described second outlet radially stretch out formation the second sealing plate；Connect the second outlet rubber inner core end radially stretch out formation the second connecting portion；Described outer being enclosed within is provided with the second end cap near one end of the second connecting plate, described second end cap internal diameter is identical with rubber inner core external diameter, at the second end cap outer wall external threading, set arranges one end inwall tapping thread of the second end cap outside, threaded between described second end cap and overcoat and with rubber inner core interference fit, described second end cap has step surface towards one end of the second connecting portion；Described step surface and the second sealing plate are clamped the second connecting portion and are bolted on together。
Preferably, at overcoat, the end of the first connecting portion is provided with the first end cap, threaded between described first end cap and overcoat。
Preferably, the first outlet between the first end cap and the first sealing plate is cased with precompression spring。
Preferably, first outlet outer wall is tapped with rectangular thread, described rectangular thread is positioned on the first outlet outer wall of the first end cap overcoat dorsad one side, the part assembling being tapped with rectangular thread at described first outlet regulates rotating cylinder, described adjustment rotating cylinder has the inner threaded surface coordinated with rectangular thread, and the one end regulating rotating cylinder props up the first end cap。
Preferably, described first outlet away from overcoat one end connect hydralic pressure gauge pipe nipple, the equal tapping thread in described hydralic pressure gauge pipe nipple two ends, hydralic pressure gauge pipe nipple and the first outlet are threaded, on hydralic pressure gauge pipe nipple by hydralic pressure gauge joint connection hydralic pressure gauge。
Preferably, described second outlet away from overcoat one end connect hydralic pressure gauge pipe nipple, the equal tapping thread in described hydralic pressure gauge pipe nipple two ends, hydralic pressure gauge pipe nipple and the second outlet are threaded, on hydralic pressure gauge pipe nipple by hydralic pressure gauge joint connection hydralic pressure gauge。
Preferably, connecting air valve assembly by three way cock on the cavity filling noble gas, an interface of three way cock connects with cavity, and other two interface connects the gentle valve assembly of air gauge respectively。
Preferably, inwall car locating slot on the coat, install spacing ring in described locating slot additional, described spacing ring is stuck in first sealing plate side towards the first connecting portion, stops the first outlet unconfined deep in overcoat。
Compared with prior art, this utility model embodiment at least has the advantage that
Pressure oscillation that the noble gas being filled with by major diameter cavity and rubber inner core and outer inner room reduces in suction line and flow pulsation。
First, rubber inner diameter of steel flue, more than pipeline diameter, forms beginning pipeline cavity volume, increases mud channel cross-sectional area, reduces the flow pulsation of mud in pipeline with this。Reducing flow crest, absorption hydraulic shock the main body playing accumulation of energy effect is the noble gas being filled with in cavity。When mud flows through slow release device rubber inner core, pressure crest, by being had elastic rubber tube and compressible noble gas is decayed, so that the mud stream with larger flow pulsation tends towards stability, reaches the effect of pulse slow-releasing。
Additionally, the precompression spring utilize the mud entrance pipe with rectangular thread, installing additional and rubber inner core natural resiliency devise a kind of adjustable mechanism, adjustment rotating cylinder outside by rotating end cap stretches rubber inner core, change the rigidity of rubber tube, thus adapting to the mud stream of different parameters, play the effect reducing mud-pulse to the limit。
Finally, mud-pulse slow release device have employed split-type design, although number of parts increases relatively, but reduces the difficulty of part manufacture processing。
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model axial-flow type mud-pulse slow release device；
Fig. 2 is the partial structurtes enlarged drawing of adjustable mechanism in Fig. 1。
Detailed description of the invention
Below in conjunction with embodiment and Fig. 1-2 thereof, the utility model is described in further detail, and following example are illustrative, are not determinate, it is impossible to limit protection domain of the present utility model with this。
As it is shown in figure 1, the structural representation that Fig. 1 is this utility model axial-flow type mud-pulse slow release device。
A kind of axial-flow type mud-pulse slow release device, including the cavity filling noble gas, cavity includes overcoat 1 and rubber inner core 2, rubber inner core 2 two ends connect the first outlet 301 and the second outlet 302 respectively, and the internal diameter of the first outlet 301 and the second outlet 302 is equal and internal diameter less than rubber inner core 2。The pressure oscillation reducing in suction line by the noble gas being filled with between Big Diameter Rubber inner core 2 and rubber inner core 2 and overcoat 1 and flow pulsation。Rubber inner core 2 diameter, more than the diameter of the first outlet 301 and the second outlet 302, forms beginning pipeline cavity volume, increases mud channel cross-sectional area, reduces the flow pulsation of mud in pipeline with this。Reducing flow crest, absorption hydraulic shock the main body playing accumulation of energy effect is the noble gas being filled with in cavity。When mud flows through slow release device rubber inner core 2, pressure crest, by being had elastic rubber inner core 2 and compressible noble gas is decayed, so that the mud stream with larger flow pulsation tends towards stability, reaches the effect of pulse slow-releasing。
The end of the first outlet 301 extend in rubber inner core 2, first outlet 301 outer wall radially stretches out and forms the first sealing plate 401, first sealing plate 401 and overcoat 1 matched in clearance, the gap between the first sealing plate 401 and overcoat 1 arranges combined seal ring 5；The end that is inserted into of rubber inner core 2 radially extends inwardly to and forms the first connecting portion 601 on the outer wall being fitted in the first outlet 301；Arranging holder 7 in the first connecting portion 601, holder 7 is enclosed within the first outlet 301 part extending in rubber inner core 2；First sealing plate 401 clamps the first connecting portion 601 and together with being bolted on holder 7。
The end of the second outlet 302 radially stretches out and forms the second sealing plate 402；Connect the second outlet 302 rubber inner core 2 end radially stretch out formation the second connecting portion 602；Overcoat 1 is provided with the second end cap 802 in the one end near the second connecting plate, second end cap 802 internal diameter is identical with rubber inner core 2 external diameter, at the second end cap 802 outer wall external threading, one end inwall tapping thread of the second end cap 802 is set at overcoat 1, threaded between second end cap 802 and overcoat 1 and with rubber inner core 2 interference fit, the second end cap 802 has step surface towards one end of the second connecting portion 602；Step surface and the second sealing plate 402 are clamped the second connecting portion 602 and are bolted on together。
At overcoat 1, the end of the first connecting portion 601 is provided with the first end cap 801, threaded between the first end cap 801 and overcoat 1。
Overcoat 1 is straight steel drum, makes relatively simple。Overcoat 1 and the first end cap 801 and the second end cap 802 all adopt straight screw connection, and seal with O。
Second end cap 802 uses eight standard screws to be connected with the second outlet 302, the second connecting portion 602 of fixed clamp rubber inner core 2。First outlet 301 utilizes the holder 7 of standard screw and rubber inner core 2 to clamp the first connecting portion 601 of rubber inner core 2。
Coordinating of similar piston and piston cylinder is coordinated between first outlet 301 and overcoat 1, car locating slot install spacing ring 9 additional in overcoat 1, stop the first outlet 301 unconfined deep in overcoat 1。The face that first outlet 301 contacts with overcoat 1 installs combined seal ring 5 additional。
As in figure 2 it is shown, the partial structurtes enlarged drawing that Fig. 2 is adjustable mechanism in Fig. 1。
The first outlet 301 between the first end cap 801 and the first sealing plate 401 is cased with precompression spring 10, it is provided that precompression。First outlet 301 outer wall is tapped with rectangular thread 11, rectangular thread 11 is positioned on the first outlet 301 outer wall of the first end cap 801 overcoat 1 dorsad one side, the part assembling being tapped with rectangular thread 11 at the first outlet 301 regulates rotating cylinder 12, regulating rotating cylinder 12 and have the inner threaded surface coordinated with rectangular thread 11, the one end regulating rotating cylinder 12 props up the first end cap 801。Utilize and form a kind of adjustable mechanism with the first outlet 301 of rectangular thread 11, the precompression spring 10 installed additional and rubber inner core 2 natural resiliency, rubber inner core 2 is stretched by rotating the adjustment rotating cylinder 12 outside the first end cap 801, change the rigidity of rubber tube, thus adapting to the mud stream of different parameters, play the effect reducing mud-pulse to the limit。
The first outlet 301 away from overcoat 1 one end connect hydralic pressure gauge pipe nipple 13, the equal tapping thread in hydralic pressure gauge pipe nipple 13 two ends, hydralic pressure gauge pipe nipple 13 is threadeded with the first outlet 301, on hydralic pressure gauge pipe nipple 13 by hydralic pressure gauge joint connection hydralic pressure gauge 14。The second outlet 302 away from overcoat 1 one end connect hydralic pressure gauge pipe nipple 13, the equal tapping thread in hydralic pressure gauge pipe nipple 13 two ends, hydralic pressure gauge pipe nipple 13 is threadeded with the second outlet 302, on hydralic pressure gauge pipe nipple 13 by hydralic pressure gauge joint connection hydralic pressure gauge 14。By the slow release effect of two groups of hydralic pressure gauge 14 observable pressure oscillations, adjustable mechanism is coordinated to reach best slow release effect。
Connecting air valve assembly 16 by three way cock 17 on the cavity filling noble gas, an interface of three way cock 17 connects with cavity, and other two interface connects the gentle valve assembly 16 of air gauge 15 respectively。Cavity is filled with noble gas by air valve assembly 16, and three way cock 17 is directly welded on overcoat 1。
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should be encompassed within protection domain of the present utility model。Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims。
Claims (10)
1. an axial-flow type mud-pulse slow release device, it is characterized in that, including the cavity filling noble gas, described cavity includes overcoat and rubber inner core, rubber inner core two ends connect the first outlet and the second outlet respectively, and the internal diameter of described first outlet and the second outlet is equal and internal diameter less than rubber inner core。
2. axial-flow type mud-pulse slow release device according to claim 1, it is characterized in that, the end of described first outlet extend in rubber inner core, described first outlet outer wall radially stretches out and forms the first sealing plate, described first sealing plate is with overcoat matched in clearance, and the gap between the first sealing plate and overcoat arranges combined seal ring；The end that is inserted into of described rubber inner core radially extends inwardly to and forms the first connecting portion on the outer wall being fitted in the first outlet；Arranging holder in the first connecting portion, described holder is enclosed within the first outlet leg portions extending in rubber inner core；Described first sealing plate and holder are clamped the first connecting portion and are bolted on together。
3. axial-flow type mud-pulse slow release device according to claim 1, it is characterised in that the end of described second outlet radially stretches out and forms the second sealing plate；Connect the second outlet rubber inner core end radially stretch out formation the second connecting portion；Described outer being enclosed within is provided with the second end cap near one end of the second connecting plate, described second end cap internal diameter is identical with rubber inner core external diameter, at the second end cap outer wall external threading, set arranges one end inwall tapping thread of the second end cap outside, threaded between described second end cap and overcoat and with rubber inner core interference fit, described second end cap has step surface towards one end of the second connecting portion；Described step surface and the second sealing plate are clamped the second connecting portion and are bolted on together。
4. axial-flow type mud-pulse slow release device according to claim 2, it is characterised in that the end of the first connecting portion is provided with the first end cap at overcoat, threaded between described first end cap and overcoat。
5. axial-flow type mud-pulse slow release device according to claim 4, it is characterised in that be cased with precompression spring on the first outlet between the first end cap and the first sealing plate。
6. axial-flow type mud-pulse slow release device according to claim 5, it is characterized in that, first outlet outer wall is tapped with rectangular thread, described rectangular thread is positioned on the first outlet outer wall of the first end cap overcoat dorsad one side, the part assembling being tapped with rectangular thread at described first outlet regulates rotating cylinder, described adjustment rotating cylinder has the inner threaded surface coordinated with rectangular thread, and the one end regulating rotating cylinder props up the first end cap。
7. according to the arbitrary described axial-flow type mud-pulse slow release device of claim 1-6, it is characterized in that, described first outlet away from overcoat one end connect hydralic pressure gauge pipe nipple, the equal tapping thread in described hydralic pressure gauge pipe nipple two ends, hydralic pressure gauge pipe nipple and the first outlet are threaded, connect hydralic pressure gauge by hydralic pressure gauge joint on hydralic pressure gauge pipe nipple。
8. according to the arbitrary described axial-flow type mud-pulse slow release device of claim 1-6, it is characterized in that, described second outlet away from overcoat one end connect hydralic pressure gauge pipe nipple, the equal tapping thread in described hydralic pressure gauge pipe nipple two ends, hydralic pressure gauge pipe nipple and the second outlet are threaded, connect hydralic pressure gauge by hydralic pressure gauge joint on hydralic pressure gauge pipe nipple。
9. according to the arbitrary described axial-flow type mud-pulse slow release device of claim 1-6, it is characterized in that, connecting air valve assembly by three way cock on the cavity filling noble gas, an interface of three way cock connects with cavity, and other two interface connects the gentle valve assembly of air gauge respectively。
10. axial-flow type mud-pulse slow release device according to claim 2, it is characterized in that, on the coat inwall car locating slot, in described locating slot, install spacing ring additional, described spacing ring is stuck in first sealing plate side towards the first connecting portion, stops the first outlet unconfined deep in overcoat。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521091457.4U CN205331697U (en) | 2015-12-24 | 2015-12-24 | Axial -flow type mud pulse slowly -releasing ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521091457.4U CN205331697U (en) | 2015-12-24 | 2015-12-24 | Axial -flow type mud pulse slowly -releasing ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331697U true CN205331697U (en) | 2016-06-22 |
Family
ID=56207804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521091457.4U Withdrawn - After Issue CN205331697U (en) | 2015-12-24 | 2015-12-24 | Axial -flow type mud pulse slowly -releasing ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331697U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485465A (en) * | 2015-12-24 | 2016-04-13 | 中国地质大学（北京） | Axial flow type mud pulse slow release machine |
| CN114623301A (en) * | 2022-03-21 | 2022-06-14 | 苏州东菱智能减振降噪技术有限公司 | Pressure control device applied to pipeline system |
-
2015
- 2015-12-24 CN CN201521091457.4U patent/CN205331697U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485465A (en) * | 2015-12-24 | 2016-04-13 | 中国地质大学（北京） | Axial flow type mud pulse slow release machine |
| CN105485465B (en) * | 2015-12-24 | 2017-07-07 | 中国地质大学（北京） | Axial-flow type mud-pulse slow release device |
| CN114623301A (en) * | 2022-03-21 | 2022-06-14 | 苏州东菱智能减振降噪技术有限公司 | Pressure control device applied to pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20170707 |
|
| AV01 | Patent right actively abandoned |