CN103946549A - A guard for controlling material dispersion in a drilling pump - Google Patents
A guard for controlling material dispersion in a drilling pump Download PDFInfo
- Publication number
- CN103946549A CN103946549A CN201280056694.XA CN201280056694A CN103946549A CN 103946549 A CN103946549 A CN 103946549A CN 201280056694 A CN201280056694 A CN 201280056694A CN 103946549 A CN103946549 A CN 103946549A
- Authority
- CN
- China
- Prior art keywords
- shield
- ring
- shroud
- protective
- segments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title description 11
- 239000000463 material Substances 0.000 title description 4
- 239000006185 dispersion Substances 0.000 title 1
- 230000001681 protective effect Effects 0.000 claims description 41
- 239000012530 fluid Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 9
- 239000010687 lubricating oil Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A guard shroud for use in a pump is provided. The guard shroud comprises a plurality of shroud ring portions (4, 8) comprising channel sections with edge portions, which when arranged in a ring and connected along adjacent edge portions define a shroud ring; and an end plate that substantially closes one end of the shroud ring and is provided with an opening, wherein when the shroud ring is positioned around an outer surface of an open end of a cylinder liner (5), the end plate substantially closes the open end of the cylinder liner with the opening substantially coaxial with the cylinder liner so as to provide access for a piston rod (1). The guard shroud prevents external impurities from entering the lubricant oil.
Description
Technical Field
The invention relates to the field of oil and gas drilling and production equipment. In particular to a drilling pumpMaterial anti-splash device。
Background
As oil and gas exploration develops, drilling depths increase gradually. This requires that the performance of the drill pump representing the core of the drilling apparatus be correspondingly improved. For example, borehole pumps require high drilling power, light weight, and long operational life.
The operational life of a drilling pump is highly dependent on the wear of the moving parts. For example, wear caused by friction may occur at the following locations: (1) between the crankshaft and the crankcase; (2) between the crankshaft and the connecting rod; (3) between the connecting rod and the crosshead pin; (4) between the cross pin and the slideway.
To reduce friction between these components, the borehole pump requires the use of a lubrication system. The types of lubrication systems used in various borehole pumps include pressure lubrication, splash lubrication, and the like. These lubrication systems typically employ a liquid lubricant, such as a lubricating oil. The lubricating oil flowing over the surfaces between the moving components helps to reduce friction between the components during operation of the drill pump.
However, if the oil has contaminants, the performance of the lubrication system may be adversely affected, for example, contaminants present in the oil in particulate form may increase wear because the particles become embedded in the surface of the moving parts of the drill pump.
Sources of impurities in the lubrication system include one or more of: (1) impurities left in grooves of the drilling pump and the oil tank due to incomplete cleaning of the drilling pump and the oil tank before the lubricating oil is filled; (2) metal particles generated by friction between moving parts; (3) foreign particles of lubricating oil are introduced by improper splash control measures in the borehole pump.
The problem of impurities due to incomplete cleaning can be eliminated by thoroughly cleaning the grooves of the drill pump and performing a cleaning check before the lubricant is poured, and the problem caused by metal particles generated by friction between the moving parts is not great because these parts are usually made of hard metal or are coated with hard metal material.
The present disclosure addresses the problem of external contaminants entering the lubrication oil due to improper splash control measures, which may be derived from water (the coolant that cools the drill pump), drilling fluid (the working medium commonly used in drill pumps), e.g., high pressure mud leaking between the piston and the cylinder liner as the piston travels in the cylinder liner, mixing with the coolant, and subsequently, the water and mud mixing may contaminate the lubrication oil, thereby damaging the drill pump.
Existing splash guards include the use of shrouds in different areas of the borehole pump. For example, a splash guard is mounted at the end of the cylinder liner, or a larger diameter shield is mounted in the middle of the connecting rod.
However, due to the design problems of the prior art mud pumps, the prior art splash guards are not effective in preventing water and mud from contaminating the lubricant. For example, current splash guards often disengage from the cylinder casing during operation of the drill pump, and further, current splash guards do not provide adequate drainage of fluid, which can flow from the cylinder casing, internally to the power end of the drill pump and contaminate the lubrication oil at the power end.
In view of the above, the present disclosure improves the above problems and provides a splash guard in a drill pump capable of preventing foreign substances from entering lubricating oil to contaminate the lubricating oil.
Disclosure of Invention
One aspect of the invention includes a protective shield for a pump comprising: a plurality of shroud ring segments including a notched portion having an edge portion that when a ring attached to its adjacent edge is installed in the shroud ring segment forms a shroud ring; an end baffle substantially closing the shroud ring end face and having an opening; the piston rod opening and closing device is characterized in that the shield ring is installed on the outer surface of the opening end of the cylinder sleeve, the end face baffle plate substantially closes the cylinder sleeve opening, and the opening of the end face baffle plate is substantially coaxial with the cylinder sleeve so as to provide a passage for the piston rod.
The end baffle is formed from a plurality of segments connected to the shroud ring. In this case, each segment may be provided with a notch, a plurality of which together define the opening. In one embodiment, the protective shield comprises first and second shield ring portions having substantially semicircular cross-sections, each of the first and second rings having a segment connected to the end face shield, wherein the first shield ring portion is axially longer than the second shield ring portion, and the segment of the end face shield connected to the first ring and the segment of the end face shield connected to the second ring overlap.
The ring portion may include a flange adjacent the edge portion by which adjacent shroud ring portions can be connected. The end baffle is formed from a plurality of segments connected to the shroud ring, and wherein the segments include flanges by which adjacent segments are connected.
In one embodiment, the face shield portion connected to the first shroud-ring portion overlaps the face shield portion connected to the second shroud-ring portion by about 10-15 mm.
The protective shield may further include at least one aperture in the shield ring for mounting a shower.
The shroud ring may also include a weep hole, which in one embodiment is located substantially opposite the hole for mounting the shower. In one embodiment, a conduit is connected to the leakage orifice for conducting leakage away from the shield.
Another aspect of the present invention also includes a pump comprising: a cylinder liner; a piston located in the cylinder liner; the piston rod is connected to the piston and extends out of the opening end of the cylinder sleeve; a protective shield comprising: a plurality of shroud ring segments including a notched portion having an edge portion that when a ring attached to its adjacent edge is installed in the shroud ring segment forms a shroud ring; an end baffle substantially closing the shroud ring end face and having an opening; the end baffle plate is arranged on the outer surface of the opening end of the cylinder sleeve, the end baffle plate substantially closes the opening of the cylinder sleeve, the opening of the end baffle plate is substantially coaxial with the cylinder sleeve, and the piston rod extends out of the opening.
In one embodiment, the pump further comprises a shield coaxially coupled to the piston rod, the shield being positioned on an opposite side of the protective shroud relative to the cylinder casing.
Another aspect of the invention includes a shield for a pump including a shield for coaxial mounting on a portion of a piston rod extending from a cylinder casing.
The shield may be larger than the end stop of the protective shield.
In one embodiment, the protector plate has a hole in a central region thereof defined therein, and a fixing mechanism (e.g., a clamping mechanism) is mounted to one side of the protector plate around the hole, by which the protector plate and the piston rod can be connected.
In an embodiment, the shield further comprises a rim extending axially from an end face opposite the protective shield.
Further aspects of the invention will be apparent from the description of embodiments given herein.
Drawings
Fig. 1 shows an exploded view of a protective shield according to an embodiment of the present invention.
Fig. 2 shows different views of a protective shield assembly according to a first embodiment of the invention. .
FIG. 3 shows a fender according to an embodiment of the invention.
Fig. 4 shows a different view of a protective shield and baffle assembly of a second embodiment of the present invention.
FIG. 5 illustrates the location of the protective shroud and shield in a borehole pump in an embodiment of the invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
While the invention disclosed herein is susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and are described below. The drawings and detailed description of these specific embodiments are not intended to limit the breadth or scope of the present inventive concept or the appended claims in any way, but rather, the drawings and detailed description are provided to explain the present inventive concept to those of ordinary skill in the art.
In accordance with the embodiment of the invention shown in FIG. 1, the protective shroud of a borehole pump includes a plurality of shroud ring segments and an end stop.
In the embodiment of fig. 1, the shroud ring portions 4 and 8 include slots with substantially semicircular cross-sections. The edge portion of the groove comprises a flange 6, by means of which flange 6 adjacent shroud ring portions can be connected. For example, the shroud ring portions 4 and 8 may be clamped together at the flange 6. The flange 6 may also include holes for connecting the shroud ring portions 4 and 8 together using connectors such as nuts, bolts, and screws. When the shroud ring portions 4 and 8 are joined along the edges, the shroud ring portions 4 and 8 are joined together at the flange 6 to form the shroud ring.
The end baffle of the protective shield may comprise several end baffle segments, for example the end baffle comprises an end baffle segment 2 and an end baffle segment 9, both end baffle segment 2 and end baffle segment 9 being connected to the shield ring part. For example, in this embodiment, shroud ring portion 8 connects end panel segments 9 and shroud ring portion 4 connects end panel segments 2. The end baffle segments may also have flanges by which adjacent end baffle segments may be joined together. Further, the end stop segments may include a locking mechanism for coupling the segments together. Alternatively, the end baffle segments may also be welded to form the end baffles.
In one embodiment, the end baffle has an opening. When an end shield having an opening is mounted on the shroud ring with an edge, the end shield substantially closes the end of the shroud ring. The opening of the end stop may be substantially circular and located substantially centrally of the end stop.
In another embodiment, both end baffle segments 2 and 9 are notched. When the end baffle segments 2 and 9 are mounted on the edge of the shroud ring, the end baffle segments 2 and 9 substantially close one end of the shroud ring. The various indentations together form an opening when the end shield segments 2 and 9 are installed in the shroud ring.
Fig. 2 shows different views of a protective shield assembly according to a first embodiment of the invention. When the shroud ring is installed around the outer surface of the open end of the cylinder liner 5, an end stop is installed to the shroud ring to substantially close the end opening of the cylinder liner 5. The opening is substantially coaxial with the cylinder liner 5 for passage of the piston rod 1.
As shown in fig. 1 and 2, shroud ring portion 8 may be axially longer than shroud ring portion 4. Similarly, when the shroud ring segment 4 and the shroud ring segment 8 are coupled together, at least one edge of the shroud ring segment 4 and the shroud ring segment 8 cannot be aligned with the other edge.
In one embodiment, one end face baffle segment attached to a shroud ring portion is larger than another end face baffle segment attached to another shroud ring portion. In the example of fig. 1, the end baffle segment 9 connected to the shroud ring portion 8 is larger than the end baffle segment 2 connected to the shroud ring portion 4.
This can be seen by the edge portions a of the end baffle segment 9 being beyond the center O, which is the arc formed by the opening of the end baffle segment 9, and the edge portions B of the end baffle segment 2 being aligned with the center O', which is the arc formed by the opening of the end baffle segment 2. As shown in fig. 2, the end baffle segments 2 and 9 are mounted on the shroud ring, the shroud ring portion 8 has a longer axial length than the shroud ring portion 4, and the end baffle segment 2 and the end baffle segment 9 overlap. For example, the end baffle segment 2 and the end baffle segment 9 may overlap by about 10-15 mm.
Referring to fig. 1 and 2, the protective shield includes holes 11 for mounting the shower pipes 3, the holes 11 being located in a shield ring portion, for example, in an upper region of the shield ring. The shower 3 can be used to output cooling water and to conduct the cooling water to the cylinder liner for cooling the cylinder liner when the piston is running. The shower 3 may be attached to the shroud ring by a connector. The shower pipes 3 can also be welded to the shroud ring.
The protective shield further comprises a leakage orifice 10, said leakage orifice 10 being located in a shield ring portion, e.g. in a lower region of the shield ring. In the shroud ring, the leakage orifice 10 may be substantially opposite the hole 11. The protective shield discharges liquid through the drain opening 10.
Figure 3 shows the backplate 13 of the splash pump. The shield 13 has a centrally located aperture for providing access to the piston rod. The shield 13 has a fixing means 14, which fixing means 14 is mounted to one side of the shield around the aperture. The shield 13 is connected to the piston rod 1 by the fixing means 14. The securing mechanism 14 may be, for example, a clamping mechanism. The fixing means 14 may further comprise a connecting member for fixing the fixing shield 13 to the piston rod 1.
Fig. 4 shows different views of a protective shield and shield assembly according to a second embodiment of the invention. The protective shroud includes, for example, two shroud ring portions having end face shield segments mounted on the shroud ring portions. The end baffle segments may be welded to the shroud ring portion. Alternatively, the shroud ring portions are all formed with end baffle segments. The shroud ring portions may also include edge portions, such as flanges, where the shroud ring portions are joined together. In this embodiment, the shield portions have substantially the same dimensions.
As shown in fig. 4, the shield 13 is positioned on the side of the protective shield opposite the cylinder casing and is mounted coaxially with the piston rod 1, with the piston rod 1 extending from the cylinder casing. The shield 13 also has an axially projecting edge from the end face which is opposite the protective shield when the shield 13 is mounted on the piston rod 1. In some embodiments, the shield 13 is larger than the end shield of the protective shield.
The protective shield further comprises a catheter 12 connected to the leakage orifice 10. The liquid guide tube 12 serves to guide the discharged material from the protective shield.
FIG. 5 illustrates the location of the protective shroud and shield of a borehole pump according to an embodiment of the present invention. The borehole pump may include a protective shield at 15, and a shield at 16.
The present invention is described in terms of the preferred embodiment, and not intended to be limited to the embodiment, but rather is to be construed as broadly within the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. A protective shield for a pump comprising:
a plurality of shroud ring segments including a notched portion having an edge portion that when a ring attached to its adjacent edge is installed in the shroud ring segment forms a shroud ring;
an end baffle substantially closing the shroud ring end face and having an opening;
it is characterized in that the preparation method is characterized in that,
the shroud ring is mounted to an outer surface of an open end of a cylinder casing, the end baffle substantially closes the cylinder casing opening, and the end baffle opening is substantially coaxial with the cylinder casing so as to provide a passage for a piston rod.
2. The protective shield of claim 1, wherein the end shield is formed from a plurality of segments attached to the shield ring.
3. The protective shield of claim 2, wherein the segments are notched, a plurality of the notches collectively defining the opening.
4. The protective shield of claim 2, including first and second shield ring portions having substantially semicircular cross-sections, each of the first and second rings having a segment connected to the end shield, wherein the first shield ring portion is axially longer than the second shield ring portion, and the segments of the end shield connected to the first ring and the segments of the end shield connected to the second ring overlap.
5. The protective shroud of claim 1, wherein the shroud ring segments include flanges adjacent the edge segments by which adjacent shroud ring segments are connected.
6. The protective shield of claim 5, wherein the end shield is formed from a plurality of segments attached to the shield ring, and wherein the segments include flanges by which adjacent segments are connected.
7. The protective shroud of claim 4, wherein said face shield portion connected to said first shroud ring portion overlaps said face shield portion connected to said second shroud ring portion by about 10-15 mm.
8. The protective shield of claim 1, further comprising at least one aperture in the shield ring for mounting a shower.
9. The protective shield of claim 1, wherein the shield ring further comprises a weep port.
10. The protective shield of claim 9, further comprising a conduit connected to the weep opening for conducting weep fluid from the shield.
11. The protective shield of claim 8, wherein the shield ring further comprises a weep port located substantially opposite the aperture.
12. A pump, comprising:
a cylinder liner;
a piston located in the cylinder liner;
the piston rod is connected to the piston and extends out of the opening end of the cylinder sleeve;
a protective shield comprising:
a plurality of shroud ring segments including a notched portion having an edge portion that when a ring attached to its adjacent edge is installed in the shroud ring segment forms a shroud ring;
an end baffle substantially closing the shroud ring end face and having an opening;
wherein,
the shield ring is mounted on the outer surface of the opening end of the cylinder sleeve, the end baffle plate substantially closes the opening of the cylinder sleeve, the opening of the end baffle plate is substantially coaxial with the cylinder sleeve, and the piston rod extends out of the opening.
13. The pump of claim 12, further comprising a shield coaxially coupled to the piston rod, the shield being positioned on an opposite side of the protective shroud from the cylinder casing.
14. The pump of claim 13, wherein the shield is larger than the end stop of the protective shroud.
15. The pump of claim 13, wherein the shield has an aperture defined in a central region thereof and a securing mechanism mounted to one side of the shield around the aperture, the securing mechanism connecting the shield and the piston rod.
16. The pump of claim 15, wherein the securing mechanism comprises a clamping mechanism.
17. The pump of claim 13, wherein the shield further comprises a rim extending axially from an end face opposite the protective shroud.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/073276 WO2013143106A1 (en) | 2012-03-30 | 2012-03-30 | A guard for controlling material dispersion in a drilling pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103946549A true CN103946549A (en) | 2014-07-23 |
| CN103946549B CN103946549B (en) | 2017-02-22 |
Family
ID=49258095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280056694.XA Active CN103946549B (en) | 2012-03-30 | 2012-03-30 | A guard for controlling material dispersion in a drilling pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103946549B (en) |
| WO (1) | WO2013143106A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669335A (en) * | 2016-04-01 | 2016-06-15 | 攀枝花恒威化工有限责任公司 | Splash scalding prevention device |
| CN111536029A (en) * | 2020-06-09 | 2020-08-14 | 宝鸡市振兴石油化工配件制造有限公司 | Water retaining cooling cylinder for mud pump cylinder sleeve piston |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528851A (en) * | 2013-10-31 | 2014-01-22 | 张文良 | Road surface core drilling machine mud guard device manufacturing method |
| CN103713615B (en) * | 2014-01-08 | 2016-09-07 | 王建军 | Drilling pump electro-mechanical interlock controls device |
| CN106285034B (en) * | 2016-08-23 | 2018-08-24 | 中铁十一局集团第四工程有限公司 | A kind of application method of high-pressure grout injector slip casting tube head and valve protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1576926A (en) * | 1923-07-05 | 1926-03-16 | Albert B Mueller | Cylinder protector |
| CN2433411Y (en) * | 2000-07-14 | 2001-06-06 | 张安东 | Crank connecting rod type plunger mud pump |
| CN2705626Y (en) * | 2004-03-12 | 2005-06-22 | 中国石化集团江汉石油管理局第四机械厂 | Five cylinder mud pump |
| CN201209544Y (en) * | 2008-04-21 | 2009-03-18 | 大庆科美达采油成套设备有限公司 | High-efficiency pouring concentrative pump |
| CN201507437U (en) * | 2009-09-10 | 2010-06-16 | 陈潜 | Protective cover for pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB571940A (en) * | 1944-07-11 | 1945-09-14 | Walter Leonard Dewing | Improvements in or relating to means for lubricating the cylinders of internal combustion engines |
| US4550805A (en) * | 1984-11-30 | 1985-11-05 | Zimmerman Gregory L | Hydrostatic lubrication system for a walking beam |
| CN2320817Y (en) * | 1997-12-09 | 1999-05-26 | 辽河石油勘探局高升油厂 | Mechanical lubricating oil pump for beam-pumping unit |
| CN2446301Y (en) * | 2000-09-13 | 2001-09-05 | 陈秋海 | Improved pump structure |
| US20090308691A1 (en) * | 2008-06-13 | 2009-12-17 | Pentagon Optimization Services | Plunger lubricator housing |
| CN201827067U (en) * | 2010-10-29 | 2011-05-11 | 四川宏华石油设备有限公司 | Lubricating structure of crosshead and crosshead pin for drill pump |
-
2012
- 2012-03-30 CN CN201280056694.XA patent/CN103946549B/en active Active
- 2012-03-30 WO PCT/CN2012/073276 patent/WO2013143106A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1576926A (en) * | 1923-07-05 | 1926-03-16 | Albert B Mueller | Cylinder protector |
| CN2433411Y (en) * | 2000-07-14 | 2001-06-06 | 张安东 | Crank connecting rod type plunger mud pump |
| CN2705626Y (en) * | 2004-03-12 | 2005-06-22 | 中国石化集团江汉石油管理局第四机械厂 | Five cylinder mud pump |
| CN201209544Y (en) * | 2008-04-21 | 2009-03-18 | 大庆科美达采油成套设备有限公司 | High-efficiency pouring concentrative pump |
| CN201507437U (en) * | 2009-09-10 | 2010-06-16 | 陈潜 | Protective cover for pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669335A (en) * | 2016-04-01 | 2016-06-15 | 攀枝花恒威化工有限责任公司 | Splash scalding prevention device |
| CN111536029A (en) * | 2020-06-09 | 2020-08-14 | 宝鸡市振兴石油化工配件制造有限公司 | Water retaining cooling cylinder for mud pump cylinder sleeve piston |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103946549B (en) | 2017-02-22 |
| WO2013143106A1 (en) | 2013-10-03 |
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