CN111852722A - Lubricating oil feeding device for hydroelectric power generation equipment - Google Patents
Lubricating oil feeding device for hydroelectric power generation equipment Download PDFInfo
- Publication number
- CN111852722A CN111852722A CN202010653323.6A CN202010653323A CN111852722A CN 111852722 A CN111852722 A CN 111852722A CN 202010653323 A CN202010653323 A CN 202010653323A CN 111852722 A CN111852722 A CN 111852722A
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- oil
- block
- movable
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- extrusion
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
- F16N31/02—Oil catchers; Oil wipers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a lubricating oil feeding device for hydraulic power generation equipment, which can prevent an oil tank from leaking during oil conveying work of a pipe fitting through a connecting ring arranged between the pipe fitting and an oil tank connecting pipe, avoid resource waste of lubricating oil and economic loss, and can well clear residual oil accumulated in a gap between the pipe fitting and the oil tank connecting pipe when oil with different functions is conveyed through an oil scraping movable block, an arc-shaped oil accumulation groove and a drainage chute arranged in an oil cleaning mechanism, drain the residual oil to the outside of a pipeline, avoid interference on oil supply work on one hand, avoid loss waste of oil resources on the other hand, further ensure the use quality of the lubricating oil and ensure the use function of the lubricating oil.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a lubricating oil supply device for hydraulic power generation equipment.
Background
In a hydraulic power plant, when a unit regulating system works, energy transfer, lubrication and heat dissipation of a rotating part of the unit and the like are generally completed by using oil as a medium, the oil system serves the oil equipment of the hydraulic power plant and consists of a whole set of equipment, the oil system is used for completing the work of oil supply, oil discharge, purification treatment and the like of the oil equipment, the oil system comprises lubricating oil with different functions such as turbine oil, insulating oil and the like, the oil system is one of main auxiliary systems of the hydraulic power plant, the oil consumption of a large hydraulic power plant can reach hundreds of tons and even thousands of tons, and medium and small hydraulic power plants also have dozens of tons and hundreds of tons. In order to ensure that such a large amount of oil is always in good condition to perform its various tasks, it is necessary to have an oil system consisting of oil supply maintenance equipment, the oil system being arranged to function as follows: receiving new oil: receiving new oil includes receiving new oil and sampling the test. The oil used in the hydropower station can be transported by an oil tank truck or an oil drum, and the new oil is received by adopting a self-flowing or pressure conveying mode according to the position elevation of the oil storage tank of the hydropower station. Each time the new oil comes, all the tests are carried out according to the corresponding oil standard: storing clean oil: qualified and enough spare oil is stored in an oil depot at any time, so that clean oil needs to be completely replaced in case of an accident or loss supplement of normal operation of equipment is realized; filling oil into equipment: oil is required to be filled after a newly installed unit and equipment are overhauled or degraded oil is discharged from the equipment; adding oil to the operating equipment: the oil system is continuously lost in oil quantity during operation due to the following reasons, and needs to be added with oil: evaporation and splashing of oil; oil leakage at the part where the oil tank and the pipe fitting are not tight; removing the precipitate and water from the apparatus periodically; taking an oil sample from the equipment; draining dirty oil from the plant: when the equipment is overhauled, dirty oil in the equipment is drained into a running oil tank of an oil depot through an oil drain pipe by an oil pump or self-flowing.
When the equipment is used for supplying oil, the sealing treatment for the connection between the pipe fitting and the oil tank connecting pipe is insufficient, lubricating oil is leaked during oil supplying operation, and the waste of supplied oil is caused.
Disclosure of Invention
The invention aims to provide a lubricating oil supply device for hydroelectric power generation equipment, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a lubricating oil supply device for hydroelectric generation equipment comprises a pipe fitting, an oil tank connecting pipe, a connecting ring and an oil cleaning mechanism;
the pipe fitting is fixedly connected with the oil tank connecting pipe through the connecting ring, the outer side wall of the connecting end of the pipe fitting, the connecting ring and the oil tank connecting pipe is integrally provided with a fixing ring, and the fixing rings are fixedly connected through bolts;
the end faces of two ends of the connecting ring are provided with annular sealing clamping grooves, the annular sealing clamping grooves are provided with annular sealing lugs in a clamping mode, the annular sealing lugs are integrally formed on the end faces of the pipe fittings and the end face of the oil tank connecting pipe, and oil drain pipes are symmetrically arranged on the connecting ring;
One end of the oil drainage pipe is arranged on the connecting ring, the other end of the oil drainage pipe is provided with a conical flow passage, the oil drainage pipe is symmetrically and movably connected with a movable insertion block, the other end of the movable insertion block is provided with a semicircular sealing block, the semicircular sealing block is symmetrically connected with a first return spring at the same end as the movable insertion block, and the oil drainage pipe is sleeved with a lantern ring;
the oil drain pipe is characterized in that the lantern ring is provided with an arc-shaped extrusion groove, a fixed circular groove is further formed in the lantern ring, an arc-shaped fixed block is arranged on the side of the oil drain pipe, which is opposite to the lantern ring, and a positioning spring pin is arranged in the arc-shaped fixed block;
and the connecting rings are symmetrically provided with oil cleaning mechanisms.
Preferably, the edible vegetable oil cleaning mechanism includes sliding block, handle, oil scraping movable block, arc oil accumulation groove, drainage chute, fixed square groove, draining port, fixed block, square movable fixture block, extrusion spring, extrusion chute, first activity extrusion block, second reset spring, the sliding block symmetry sets up on the go-between to the one end of sliding block is provided with the handle, the other end is provided with the oil scraping movable block, the activity of oil scraping movable block sets up in arc oil accumulation groove, and the avris of arc oil accumulation groove is provided with the drainage chute, and the bottom is provided with the draining port, and the draining port connection is provided with the draining pipe, the avris of sliding block is provided with fixed square groove to the avris position of sliding block is provided with the fixed block, swing joint is provided with square movable fixture block in the fixed block, the one end connection of square movable fixture block is provided with extrusion spring, The square movable fixture block is internally provided with an extrusion chute, a second movable extrusion block is inserted into the side position of the square movable fixture block, one end of the second movable extrusion block is provided with a first movable extrusion block, and the first movable extrusion block is connected with the same end of the second movable extrusion block and is provided with a second reset spring.
Preferably, the arc-shaped extrusion grooves correspond to the movable insertion blocks and the semicircular sealing blocks in arrangement positions and are arranged in the same number of groups, and the arc-shaped extrusion grooves are arranged in two groups.
Preferably, the square movable fixture block and the fixed square groove are arranged at the same position and the same number, and the cross section of the square movable fixture block is the same as that of the notch of the fixed square groove, that is, the cross sections of the square movable fixture block and the fixed square groove are equal in length and width.
Preferably, the arc oil accumulation groove is internally provided with two groups of oil scraping movable blocks in a symmetrical and movable mode, and the width of the cross section of the notch of the arc oil accumulation groove is equal to that of the cross section of the oil scraping movable blocks.
Compared with the prior art, the invention has the beneficial effects that:
the connecting sealing performance of the oil conveying pipe fitting and the oil tank in the lubricating oil supply system in the hydraulic power generation is stronger, the oil tank cannot leak when the oil conveying operation is carried out on the pipe fitting through the connecting ring arranged between the pipe fitting and the oil tank connecting pipe, the resource waste of lubricating oil is avoided, and the economic loss is avoided.
Drawings
FIG. 1 is a schematic left side view of a structural connection according to the present invention;
FIG. 2 is a right side schematic view of a structural connection according to the present invention;
FIG. 3 is an exploded view of a structural joint according to the present invention;
FIG. 4 is a partial cross-sectional view of the connection of the internal structure of the attachment ring of the present invention;
FIG. 5 is a schematic view of the structural connection between the arc-shaped oil accumulation groove and the drainage chute in the connecting ring according to the present invention;
FIG. 6 is an enlarged view of the connection between the connection ring and the oil drainage pipe in FIG. 3 according to the present invention;
FIG. 7 is an exploded view of the connection between the connection ring and the oil drainage pipe structure according to the present invention;
FIG. 8 is an enlarged view of a portion of the structural joint of FIG. 4 according to the present invention;
fig. 9 is a partial sectional view of the internal structure connection of the oil cleaning mechanism of the present invention.
In the figure: the oil tank sealing device comprises a pipe fitting 1, an oil tank connecting pipe 2, a connecting ring 3, a fixing ring 4, an annular sealing clamping groove 5, an annular sealing convex block 6, an oil drainage pipe 7, a movable insertion block 8, a semicircular sealing block 9, a first return spring 10, a lantern ring 11, an arc-shaped extrusion groove 12, a fixing circular groove 13, an arc-shaped fixing block 14, a positioning spring pin 15, an oil cleaning mechanism 16, a sliding block 1601, a handle 1602, an oil scraping movable block 1603, an arc-shaped oil accumulation groove 1604, a drainage chute 1605, a fixing square groove 1606, an oil drainage port 1607, a fixing block 1608, a square movable clamping block 1609, an extrusion spring 1610, an extrusion chute 1611, a first movable extrusion block 1612, a second movable extrusion block 1613 and a second return spring 1614.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1 to 9, the present invention provides a technical solution: a lubrication oil supply device for hydropower equipment comprises a pipe fitting 1, an oil tank connecting pipe 2, a connecting ring 3 and an oil cleaning mechanism 16;
the pipe fitting 1 is fixedly connected with the oil tank connecting pipe 2 through the connecting ring 3, the outer side wall of the connecting end of the pipe fitting 1, the connecting ring 3 and the oil tank connecting pipe 2 is integrally provided with a fixing ring 4, and the fixing rings 4 are fixedly connected through bolts;
the end faces of two ends of the connecting ring 3 are provided with annular sealing clamping grooves 5, the annular sealing clamping grooves 5 are provided with annular sealing lugs 6 in a clamping mode, the annular sealing lugs 6 are integrally formed on the end face of the pipe fitting 1 and the end face of the oil tank connecting pipe 2, and oil drainage pipes 7 are symmetrically arranged on the connecting ring 3;
one end of the oil drain pipe 7 is arranged on the connecting ring 3, the other end of the oil drain pipe is provided with a conical flow passage, the oil drain pipe 7 is symmetrically and movably connected with a movable insertion block 8, the other end of the movable insertion block 8 is provided with a semicircular sealing block 9, the semicircular sealing block 9 is symmetrically connected with a first return spring 10 at the same end as the movable insertion block 8, and the oil drain pipe 7 is sleeved with a lantern ring 11;
The lantern ring 11 is provided with an arc-shaped extrusion groove 12, a fixed circular groove 13 is further arranged in the lantern ring 11, an arc-shaped fixed block 14 is arranged on the oil drain pipe 7 at the side position of the lantern ring 11, and a positioning spring pin 15 is arranged in the arc-shaped fixed block 14;
the connecting ring 3 is symmetrically provided with oil cleaning mechanisms 16.
Further, the oil cleaning mechanism 16 includes a sliding block 1601, a handle 1602, an oil scraping movable block 1603, an arc oil accumulation groove 1604, a drainage chute 1605, a fixed square groove 1606, an oil drainage port 1607, a fixed block 1608, a square movable block 1609, an extrusion spring 1610, an extrusion chute 1611, a first movable extrusion block 1612, a second movable extrusion block 1613 and a second return spring 1614, the sliding blocks 1601 are symmetrically arranged on the connecting ring 3, one end of the sliding block 1601 is provided with the handle 1602, the other end is provided with the oil scraping movable block 1603, the oil scraping movable block 1603 is movably arranged in the arc oil accumulation groove 1604, the side of the arc oil accumulation groove 1604 is provided with the drainage chute 1605, the bottom end is provided with an oil drainage port 1607, the oil drainage port 1607 is connected and provided with an oil drainage pipe 7, the side of the sliding block 1601 is provided with the fixed square groove 1606, the side of the sliding block 1601 is provided with the fixed block 1608, the fixed block 1609 is, one end of the square movable clamping block 1609 is connected with an extrusion spring 1610, an extrusion chute 1611 is arranged in the square movable clamping block 1609, a second movable extrusion block 1613 is inserted and arranged at the side position of the square movable clamping block 1609, one end of the second movable extrusion block 1613 is provided with a first movable extrusion block 1612, and the same end of the first movable extrusion block 1612 and the second movable extrusion block 1613 is connected with a second return spring 1614.
Furthermore, the arc-shaped extrusion grooves 12 correspond to the movable insertion blocks 8 and the semicircular sealing blocks 9 in arrangement positions and are arranged in the same number of groups, and the arc-shaped extrusion grooves are arranged in two groups.
Further, the square movable fixture block 1609 and the fixed square groove 1606 are arranged at the same position and in the same number of groups, and the cross-sectional shape of the square movable fixture block 1609 is the same as the cross-sectional shape of the notch of the fixed square groove 1606, i.e. the cross-sectional shapes are equal in length and width.
Furthermore, two sets of oil scraping movable blocks 1603 are symmetrically and movably arranged in the arc-shaped oil accumulation groove 1604, and the width of the cross section of the notch of the arc-shaped oil accumulation groove 1604 is equal to that of the cross section of the oil scraping movable blocks 1603.
The working principle is as follows: according to the invention, the annular sealing bump 6 is arranged at the connecting end of the pipe fitting 1 and the oil tank connecting pipe 2, the annular sealing bump 6 is in sealing clamping connection with the annular sealing clamping groove 5 at the connecting end of the connecting ring 3, so that the sealing stability of the connection of the pipe fitting 1, the oil tank connecting pipe 2 and the connecting ring 3 is ensured, the fixing rings 4 on the three are in locking connection through bolts, a small amount of oil is remained at the gap where the pipe fitting 1, the oil tank connecting pipe 2 and the connecting ring 3 are connected during long-time oil supply operation, the residual oil can be drained into the arc oil accumulation groove 1604 through the drainage chute 1605 arranged in the oil cleaning mechanism 16, and further the first movable extrusion block 1612 is pressed during the movement of the sliding block 1601 on the movable connecting ring 3, so that the square movable clamping block 1609 is separated from the fixed square groove 1606 in the sliding block 1601, with the sliding of the sliding block 1601, the oil scraping movable block 1603 is driven to scrape the residual oil in the arc oil accumulation groove 1604, the residual oil is extruded into the oil drainage port 1607 and enters the oil drainage pipe 7, then the positioning spring pin 15 is pulled to separate the residual oil from the fixed circular groove 13 in the lantern ring 11, then the lantern ring is rotated, with the rotation of the lantern ring 11, the extrusion of the arc extrusion groove 12 in the lantern ring 11 to the movable insertion block 8 is released, so that the semicircular sealing block 9 returns to the initial position under the action of the first return spring 10, the blocking effect of the semicircular sealing block 9 on the flow passage in the oil drainage pipe 7 is released, the residual oil can flow out of the oil drainage pipe 7, and the residual oil is separated from the pipeline for subsequent treatment, therefore, the invention can well clear the residual oil which is accumulated in the gap between the pipe fitting and the oil tank connecting pipe and can be drained to the outside of the pipeline, the interference to the oil supply work has been avoided on the one hand, and on the other hand has also avoided causing the loss of oil resource extravagant, and then guarantees the use quality of lubricating oil, guarantees its service function.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a hydroelectric power generation is lubricated oil feeding device for equipment which characterized in that: comprises a pipe fitting (1), an oil tank connecting pipe (2), a connecting ring (3) and a clean oil mechanism (16);
the pipe fitting (1) is fixedly connected with the oil tank connecting pipe (2) through the connecting ring (3), the outer side wall of the connecting end of the pipe fitting (1), the connecting ring (3) and the oil tank connecting pipe (2) is integrally provided with a fixing ring (4), and the fixing rings (4) are fixedly connected through bolts;
the end faces of two ends of the connecting ring (3) are provided with annular sealing clamping grooves (5), the annular sealing clamping grooves (5) are provided with annular sealing lugs (6) in a clamping mode, the annular sealing lugs (6) are integrally formed on the end face of the pipe fitting (1) and the end face of the oil tank connecting pipe (2), and oil drainage pipes (7) are symmetrically arranged on the connecting ring (3);
one end of the oil drainage pipe (7) is arranged on the connecting ring (3), the other end of the oil drainage pipe is provided with a conical flow channel, the oil drainage pipe (7) is symmetrically and movably connected with a movable insert block (8), the other end of the movable insert block (8) is provided with a semicircular sealing block (9), the semicircular sealing block (9) is symmetrically connected with the same end of the movable insert block (8) and is provided with a first return spring (10), and the oil drainage pipe (7) is sleeved with a lantern ring (11);
The oil drain pipe is characterized in that the lantern ring (11) is provided with an arc-shaped extrusion groove (12), a fixed circular groove (13) is further formed in the lantern ring (11), an arc-shaped fixed block (14) is arranged on the oil drain pipe (7) at the side position of the lantern ring (11), and a positioning spring pin (15) is arranged in the arc-shaped fixed block (14);
and the connecting ring (3) is symmetrically provided with oil cleaning mechanisms (16).
2. A lubrication oil feeder for hydroelectric power generation equipment according to claim 1, wherein: the oil cleaning mechanism (16) comprises a sliding block (1601), a handle (1602), an oil scraping movable block (1603), an arc-shaped oil accumulation groove (1604), a drainage chute (1605), a fixed square groove (1606), an oil drainage port (1607), a fixed block (1608), a square movable fixture block (1609), an extrusion spring (1610), an extrusion chute (1611), a first movable extrusion block (1612), a second movable extrusion block (1613) and a second reset spring (1614), wherein the sliding block (1601) is symmetrically arranged on the connecting ring (3), one end of the sliding block (1601) is provided with the handle (1602), the other end of the sliding block (1601) is provided with the oil scraping movable block (1603), the oil scraping movable block (1603) is movably arranged in the arc-shaped oil accumulation groove (1604), the side of the arc-shaped oil accumulation groove (1604) is provided with the drainage chute (1605), the bottom end of the oil drainage port (1607), and the oil drainage port (1607) is connected and provided, the avris of sliding block (1601) is provided with fixed square groove (1606) to the avris position of sliding block (1601) is provided with fixed block (1608), swing joint is provided with square activity fixture block (1609) in fixed block (1608), the one end of square activity fixture block (1609) is connected and is provided with extrusion spring (1610), is provided with extrusion chute (1611) in square activity fixture block (1609) to the avris position grafting of square activity fixture block (1609) is provided with second activity extrusion piece (1613), second activity extrusion piece (1613) one end is provided with first activity extrusion piece (1612), first activity extrusion piece (1612) are being provided with second reset spring (1614) with the same end connection of second activity extrusion piece (1613).
3. A lubrication oil feeder for hydroelectric power generation equipment according to claim 1, wherein: the arc-shaped extrusion grooves (12) correspond to the arrangement positions of the movable insertion blocks (8) and the semicircular sealing blocks (9), are arranged in the same number, and are arranged into two groups.
4. A lubrication oil feeder for hydroelectric power generation equipment according to claim 2, wherein: the square movable fixture block (1609) and the fixed square groove (1606) are arranged at the same position and the same number of groups, and the cross section of the square movable fixture block (1609) is the same as that of the notch of the fixed square groove (1606), namely the cross sections are equal in length and width.
5. A lubrication oil feeder for hydroelectric power generation equipment according to claim 2, wherein: two groups of oil scraping movable blocks (1603) are symmetrically and movably arranged in the arc-shaped oil accumulation groove (1604), and the width of the cross section of the notch of the arc-shaped oil accumulation groove (1604) is equal to that of the cross section of the oil scraping movable blocks (1603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010653323.6A CN111852722B (en) | 2020-07-08 | 2020-07-08 | Lubricating oil feeding device for hydroelectric power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010653323.6A CN111852722B (en) | 2020-07-08 | 2020-07-08 | Lubricating oil feeding device for hydroelectric power generation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111852722A true CN111852722A (en) | 2020-10-30 |
| CN111852722B CN111852722B (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010653323.6A Expired - Fee Related CN111852722B (en) | 2020-07-08 | 2020-07-08 | Lubricating oil feeding device for hydroelectric power generation equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN111852722B (en) |
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| JP2014145444A (en) * | 2013-01-30 | 2014-08-14 | Mitsubishi Heavy Ind Ltd | Piping member, connecting structure of piping member, and hydraulic drive device |
| CN204692818U (en) * | 2015-05-31 | 2015-10-07 | 夏怡 | A kind of Bite type fittings |
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| CN106885127A (en) * | 2015-12-15 | 2017-06-23 | 宝钢新日铁汽车板有限公司 | A kind of oil connection permeability viewer |
| CN208619939U (en) * | 2018-08-15 | 2019-03-19 | 江苏奥威机械有限公司 | A kind of petroleum pipeline with anti-blockage function |
| CN209293751U (en) * | 2018-12-03 | 2019-08-23 | 东营市飞扬石油机械有限公司 | A kind of bleeder of unidirectional counterflow-preventing |
-
2020
- 2020-07-08 CN CN202010653323.6A patent/CN111852722B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10306431A (en) * | 1997-04-28 | 1998-11-17 | Toru Nakamura | Liquid-surface suspended matter recovery equipment and liquid-surface suspended matter partition body to be used with recovery equipment |
| JP2007188641A (en) * | 2006-01-11 | 2007-07-26 | Hitachi Ltd | Fuel cell system |
| CA2569068A1 (en) * | 2006-11-21 | 2008-05-21 | Peter W. Bryce | Oil entrapment and containment channel for above ground pipelines and piping |
| JP2010065386A (en) * | 2008-09-08 | 2010-03-25 | Amagasaki Juki Kk | Hydraulic piping coupling device |
| CN103090131A (en) * | 2011-11-07 | 2013-05-08 | 本田技研工业株式会社 | Oil way connection structure |
| JP2014145444A (en) * | 2013-01-30 | 2014-08-14 | Mitsubishi Heavy Ind Ltd | Piping member, connecting structure of piping member, and hydraulic drive device |
| CN204692818U (en) * | 2015-05-31 | 2015-10-07 | 夏怡 | A kind of Bite type fittings |
| CN106763193A (en) * | 2015-11-21 | 2017-05-31 | 湖南崇德工业科技有限公司 | A kind of oil-scraping device based on sliding bearing oil supply system |
| CN106885127A (en) * | 2015-12-15 | 2017-06-23 | 宝钢新日铁汽车板有限公司 | A kind of oil connection permeability viewer |
| CN208619939U (en) * | 2018-08-15 | 2019-03-19 | 江苏奥威机械有限公司 | A kind of petroleum pipeline with anti-blockage function |
| CN209293751U (en) * | 2018-12-03 | 2019-08-23 | 东营市飞扬石油机械有限公司 | A kind of bleeder of unidirectional counterflow-preventing |
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| Publication number | Publication date |
|---|---|
| CN111852722B (en) | 2021-02-12 |
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