CN102296287A - Petroleum drill collar joint thread surface hot phosphating device - Google Patents
Petroleum drill collar joint thread surface hot phosphating device Download PDFInfo
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- CN102296287A CN102296287A CN2011102531815A CN201110253181A CN102296287A CN 102296287 A CN102296287 A CN 102296287A CN 2011102531815 A CN2011102531815 A CN 2011102531815A CN 201110253181 A CN201110253181 A CN 201110253181A CN 102296287 A CN102296287 A CN 102296287A
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- stifled
- magnetic valve
- drill collar
- covering
- phosphatization
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Abstract
The invention relates to a petroleum drill collar joint thread surface hot phosphating device. The petroleum drill collar joint thread surface hot phosphating device comprises a phosphating pool assembly, wherein one side of the phosphating pool assembly is connected with a drill collar joint thread outer sealing assembly; the other side of the phosphating pool assembly is connected with a drill collar joint thread inner blocking assembly; five groups of manifolds are connected with five groups of loops; sensors, heaters, stirrers, electromagnetic valves and pumps in the five groups of loops are connected to a programmable logic controller (PLC); a drill collar joint is placed in a phosphating pool; and the technological treatment process of derusting, water washing, phosphating, passivation, drying and the like are implemented by the five groups of loops. The petroleum drill collar joint thread surface hot phosphating device has the characteristics of full sealability, low energy consumption, compact structure, simpleness in operation, automatic control and high phosphating efficiency.
Description
Technical field
The present invention relates to metal protection and technical field of surface, particularly a kind of stone oil drill collar joint screw thread surface heat phosphating plant.
Technical background
The drill collar that is used for petroleum drilling is interconnected or connect with other drilling well tubing strings with threaded connector, these joints also will bear down-hole liquid (as fluid, drilling fluid etc.) and corrosive medium (as H outside bearing load such as normal pressure, bending moment, vibratory impulse
2S, CO
2Deng) corrosive nature, this abominable operating mode has proposed higher requirement to performances such as life-span of connecting screw thread, wear resistance, erosion resistances.Bonderizing can improve the performances such as solidity to corrosion of metallic surface.Be significantly improved at aspect of performances such as wear resistance, erosion resistance and life-spans through tool joint screw threads such as parkerized oil drill rocker, oil pipes, brought good actual benefit.
At present, the phosphating plant of domestic petroleum drill collar joint thread surface is simpler and cruder relatively, and main employing smears phosphatization cream by hand or open steam phosphating drill traverse stain mode is carried out phosphatization, and phosphatization quality instability is seriously polluted.The former bonderizing process uncertain factor is many, and the phosphatization quality is restive, and latter's steam phosphating spare needs frequently to move between each groove, and energy consumption is big, the thermal phosphorization device complex structure.Simultaneously, the cleaning inconvenience of open various tank liquors, especially phosphatization liquid bath, entering of any source of pollution can cause phosphatization liquid directly aging, influences the work-ing life of phosphatization liquid.Moreover except that clear water, other functional liquids all have certain corrodibility even contain poisonous composition, and operator must wear mouth mask, acid-proof gloves, safety glasses, water shoes etc. and could work, and when heating vaporized gas also environment is caused damage.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the object of the present invention is to provide a kind of stone oil drill collar joint screw thread surface heat phosphating plant, have that device is totally-enclosed, energy consumption is low, a compact construction, floor space is little, operation is simple and reliable characteristics.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of stone oil drill collar joint screw thread surface heat phosphating plant, comprise phosphatization pond support 17, phosphatization pond support 17 links to each other with phosphatization pond assembly 2, one side of phosphatization pond assembly 2 is connected with drill collar joint screw thread covering assembly 3, the opposite side of phosphatization pond assembly 2 is connected with stifled assembly 4 in the drill collar joint screw thread, five groups of manifolds 6 are connected with the phosphatization pond 20 of phosphatization pond assembly 2, and phosphatization pond 20 is equipped with transmitter 5-1, and compressed air tank 7 is connected with drill collar joint screw thread covering assembly 3 by magnetic valve K11; Magnetic valve K1, magnetic valve K6, pump P1 and degreasing rust cleaning flow container 8 connect to form the degreasing liquid circulation loop that eliminates rust by manifold 6 and first group of manifold connecting hole 23 and drain open holes 26; Magnetic valve K2, magnetic valve K7, pump P2 and clear water jar 9 connect to form the clear water circulation loop by manifold 6 and second group of manifold connecting hole 23 and drain open holes 26; Magnetic valve K3, magnetic valve K8, pump P3 and table transfer flow container 10 to connect to form table accent liquid circulation loop by manifold 6 and the 3rd group of manifold connecting hole 23 and drain open holes 26; Magnetic valve K4, magnetic valve K9, pump P4 and phosphatization flow container 11 connect to form phosphatization liquid circulation loop by manifold 6 and the 4th group of manifold connecting hole 23 and drain open holes 26; Magnetic valve K5, magnetic valve K10, pump P5 and passivation flow container 12 connect to form the passivating solution circulation loop by manifold 6 and the 5th group of manifold connecting hole 23 and drain open holes 26; Degreasing rust cleaning flow container 8, clear water jar 9, table transfer the inside of flow container 10, phosphatization flow container 11 and passivation flow container 12 that agitator 14 all is installed, the outside all is equipped with transmitter 5-2 and well heater 13, transmitter 5-1, transmitter 5-2, well heater 13, agitator 14, magnetic valve K1～K11 and pump P1～P5 all are connected to PLC controller 16, the component devices Controlling System.
Described drill collar joint screw thread covering assembly 3 comprises covering air bag inlet mouth 27, and covering air bag inlet mouth 27 communicates with covering air bag 29 inner chambers, is connected and fixed by screw thread and covering box 28; Covering air bags valve 30 communicates with covering air bag 29 inner chambers, is connected and fixed by screw thread and covering box 28; Covering box 28 is close to covering box sealing-ring 31, covering box baffle plate 32 successively and is connected with phosphatization pond 20 by covering box Connection Block 21 with bolt; Covering air bag 29 places covering box 28, and covering air bag 29 outer walls are fixed with glue and the 28 inwall adhesions of covering box; Drill collar 1 places covering air bag 29.
The present invention mainly is the defective that overcomes current stone oil drill collar joint screw thread surface heat phosphating process means and equipment, and its characteristics comprise:
One phosphatization pond is used to place the drill collar joint threaded portion, so that carry out bonderizing;
One drill collar covering assembly is installed on a side in phosphatization pond, is implemented in the sealing of drill collar outer wall in the parkerizing process;
Stifled assembly is installed on the opposite side in phosphatization pond in one drill collar, realizes the shutoff of drill collar bore in the parkerizing process;
One group of electromagnetic valve and pump connect with various functional liquid jars by pipeline, phosphatization pond, form closed cycle system;
One deslagging device links to each other with the loop of phosphatization liquid circulation passage, is used for removing the phosphatization slag that parkerizing process produces;
One group of functional liquid jar is used for the various functional liquids of splendid attire, is convenient to liquid and safeguards and control;
One realizes automatic measurement to the automatic control of phosphating plant magnetic valve, pump, well heater, agitator etc. and functional liquid temperature, liquid level based on the control device of PLC controller.
The present invention has following characteristics and advantage:
Install totally-enclosedly, energy consumption is low, compact construction, and floor space is little, and operation is simple and reliable; Various process liquids circulate continuously in the parkerizing process, and phosphatization liquid is difficult for contaminated, and corresponding prolongation in work-ing life improves the medicine utilization rate, reduces the technology operating cost, phosphatization efficient height, reliable in quality; Harmless to environment and operator; Adopt the automatic control control of well heater, motor, valve etc. in the PLC controller implement device, the level of automation height; By changing the PLC trapezoid figure program, can adapt to different phosphating process, flexible, help the optimization design of phosphating process; Change covering, interior stifled assembly, the steam phosphating that can adapt to tool-joint thread surface under the oil well of different inside and outside footpaths size is handled.
Description of drawings
Fig. 1 is a planar principle assumption diagram of the present invention.
Fig. 2 is the structure iron of mechanical body part of the present invention.
Fig. 3 is the structure principle chart in phosphatization pond 20.
Fig. 4 is the structure principle chart of drill collar joint screw thread covering assembly 3.
Fig. 5 is the structure principle chart of stifled assembly 4 in the drill collar joint screw thread.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are described in detail.
The present invention is the basis according to stone oil drill collar dimensions NC50 commonly used～70.
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of stone oil drill collar joint screw thread surface heat phosphating plant, comprise phosphatization pond support 17, phosphatization pond support 17 links to each other with phosphatization pond assembly 2 by phosphatization pond engaging lug seat 19 usefulness bolts, one side of phosphatization pond assembly 2 is connected with drill collar joint screw thread covering assembly 3 by covering box Connection Block 21 usefulness bolts, the opposite side of phosphatization pond assembly 2 is connected with stifled assembly 4 in the drill collar joint screw thread by interior stifled assembly open holes 25, five groups of manifolds 6 are connected with phosphatization pond 20 by five groups of manifold connecting holes 23, phosphatization pond 20 is connected with phosphatization pond lid 22 by double buckle, phosphatization pond 20 is equipped with transmitter 5-1 by detecting sensor open holes 24, five groups of manifolds 6 are supported by manifold support 18, manifold support 18 usefulness bolts are connected with phosphatization pond support 17, compressed air tank 7 is connected with drill collar joint screw thread covering assembly 3 by magnetic valve K11, operation magnetic valve K11 utilizes pressurized gas in the compressed air tank 7 to realize outer wall shutoff to drill collar 1; Magnetic valve K1, magnetic valve K6, pump P1 and degreasing rust cleaning flow container 8 connect to form the degreasing liquid circulation loop that eliminates rust by manifold 6 and first group of manifold connecting hole 23 and drain open holes 26; Magnetic valve K2, magnetic valve K7, pump P2 and clear water jar 9 connect to form the clear water circulation loop by manifold 6 and second group of manifold connecting hole 23 and drain open holes 26; Magnetic valve K3, magnetic valve K8, pump P3 and table transfer flow container 10 to connect to form table accent liquid circulation loop by manifold 6 and the 3rd group of manifold connecting hole 23 and drain open holes 26; Magnetic valve K4, magnetic valve K9, pump P4 and phosphatization flow container 11 connect to form phosphatization liquid circulation loop by manifold 6 and the 4th group of manifold connecting hole 23 and drain open holes 26, and phosphatization liquid circulation loop is provided with phosphatization slag device 15, is used for slagging-off; Magnetic valve K5, magnetic valve K10, pump P5 and passivation flow container 12 connect to form the passivating solution circulation loop by manifold 6 and the 5th group of manifold connecting hole 23 and drain open holes 26; Degreasing rust cleaning flow container 8, clear water jar 9, table transfer the inside of flow container 10, phosphatization flow container 11 and passivation flow container 12 that agitator 14 all is installed, the outside all is equipped with transmitter 5-2 and well heater 13, transmitter 5-1, transmitter 5-2, well heater 13, agitator 14, magnetic valve K1～K11 and pump P1～P5 all are connected to PLC controller 16, the component devices Controlling System.
With reference to Fig. 4, described drill collar joint screw thread covering assembly 3 comprises covering air bag inlet mouth 27, and covering air bag inlet mouth 27 communicates with covering air bag 29 inner chambers, is connected and fixed by screw thread and covering box 28; Covering air bags valve 30 communicates with covering air bag 29 inner chambers, is connected and fixed by screw thread and covering box 28; Covering box 28 is close to covering box sealing-ring 31, covering box baffle plate 32 successively and is connected with phosphatization pond 20 by covering box Connection Block 21 with bolt; Covering air bag 29 places covering box 28, and covering air bag 29 outer walls are fixed with glue and the 28 inwall adhesions of covering box; Drill collar 1 places covering air bag 29.
With reference to Fig. 5, stifled skeleton 39 in stifled assembly 4 comprises in the described drill collar joint screw thread, stifled backbone sealing ring 38 blocked up assembly open holes 25 in placing in interior stifled skeleton 39 was close to, and with stifled skeleton pad 37 and interior stifled skeleton set nut 36 interior stifled skeleton 39 was fixed on the phosphatization pond 20; The endoporus of stifled skeleton 39 in interior stifled pull bar 44 places is fixed in interior blocking up on the skeleton 39 with interior stifled pull bar set screw nut 35; In stifled pull bar 44 and interior stifled pull bar set screw nut 35 by being threaded; Stifled pull bar pivoted arm 34 and interior stifled operation handle arm 33 in interior stifled pull bar 44 1 sides are installed respectively; Stifled skeleton 39 opposite sides in interior stifled capsule 40 endoporus place block up on the skeleton 39 in being fixed in interior stifled capsule clamp ring 41, interior stifled capsule force transmission ring 42, interior stifled pull bar circlip 43 successively.
Principle of work of the present invention is:
(1) liquid is prepared: check degreasing rust cleaning liquid, table transfer correlation technique parameters such as liquid, phosphatization liquid, passivating solution whether to meet the steam phosphating processing requirement, if do not meet, should regulate, till reaching standard, heat and be incubated to specified temperature.
(2) drill collar is installed: operation phosphatization pond support 17, and the position in adjustment phosphatization pond 20, promptly the position height of covering box 28 centre hole axis is inserted drill collar 1 joint in the phosphatization pond 20, opens magnetic valve K11, drives covering air bag 29, and drill collar 1 is realized covering.Stifled operation handle arm 33 in turning clockwise, stifled pull bar 44 moves right in making, and the outwards outstanding distortion of interior stifled capsule 40 compressions realizes drill collar 1 endoporus shutoff, and all the other each magnetic valves are in normally off.
(3) degreasing rust cleaning: open magnetic valve K1, magnetic valve K6, open pump P1 and inject treatment solutions to phosphatization pond 20, treat that phosphatization pond 20 is full of after, magnetic valve K6 opens, and makes treatment solution carry out the degreasing processing of rust removing to drill collar joint circularly continuously; After after 3～8 minutes, closing pump P1, magnetic valve K1, treating 20 emptyings of phosphatization pond, close magnetic valve K6;
(4) washing: open magnetic valve K2, open the joint screw thread of pump P2 after and clean degreasing, treat that phosphatization pond 20 is full of after, magnetic valve K7 opens, wash cycles was closed pump P2, magnetic valve K2 after 3 minutes, treat phosphatization pond 20 skies after, close magnetic valve K7;
(5) surface is adjusted: open magnetic valve K3, open pump P3 the joint screw thread after cleaning is carried out surface adjustment, treat that phosphatization pond 20 is full of after, magnetic valve K8 opens, and circular treatment was closed pump P3, magnetic valve K3 after 1 minute, after treating 20 emptyings of phosphatization pond, close magnetic valve K8;
(6) washing: open magnetic valve K2, open pump P2 the adjusted joint screw thread in surface is cleaned, treat that phosphatization pond 20 is full of after, magnetic valve K7 opens, wash cycles was closed pump P2, magnetic valve K2 after 3 minutes, treat 20 emptyings of phosphatization pond after, close magnetic valve K7;
(7) phosphatization: open magnetic valve K4, open pump P4 the joint screw thread after cleaning is carried out phosphatization, treat that phosphatization pond 20 is full of after, magnetic valve K9 opens, circular treatment about 15 minutes after, close pump P4, magnetic valve K4, treat 20 emptyings of phosphatization pond after, close magnetic valve K9; The phosphatization slag that forms in the parkerizing process is handled by phosphatization slag device 15 and is got rid of;
(8) washing: open magnetic valve K2, open the joint screw thread of pump P2 after and clean phosphatization, treat that phosphatization pond 20 is full of after, magnetic valve K7 opens, wash cycles was closed pump P2, magnetic valve K2 after 3 minutes, treat 20 emptyings of phosphatization pond after, close magnetic valve K7;
(9) passivation: open magnetic valve K5, open pump P5 the joint screw thread after cleaning is carried out sealing treatment, treat that phosphatization pond 20 is full of after, magnetic valve K10 opens, handle 1 minute continuously after, close pump P5, magnetic valve K5, treat 20 emptyings of phosphatization pond after, close magnetic valve K10;
(10) washing: open magnetic valve K2, open the joint screw thread of pump P2 after and clean passivation, treat that phosphatization pond 20 is full of after, magnetic valve K7 opens, wash cycles was closed pump P2, magnetic valve K2 after 5 minutes, treat 20 emptyings of phosphatization pond after, close magnetic valve K7;
(11) drying: close magnetic valve K11, discharge the gas in the covering air bag 29, stifled operation handle arm 33 in being rotated counterclockwise, stifled pull bar 44 is moved to the left in making, and interior stifled capsule 40 recovers distortion, and is stifled in unclamping, and drill collar is withdrawed from phosphatization pond 20, places air drying.
Above embodiment is only for illustrating the technical conceive and the characteristics of patent of the present invention; its purpose is to allow the personage that is familiar with or specifically uses this technology can understand the content of patent of the present invention and is implemented, and can not limit the protection domain of patent of the present invention with this.All equivalences that the patent spirit is done according to the present invention change or modify, and all should be encompassed within the protection domain of patent of the present invention.
Among the figure 1, drill collar; 2, phosphatization pond assembly; 3, drill collar joint screw thread covering assembly; 4, stifled assembly in the drill collar joint screw thread; 5-1 and 5-2, transmitter; 6, manifold; 7, compressed air tank; 8, degreasing rust cleaning flow container; 9, clear water jar; 10, table is transferred flow container; 11, phosphatization flow container; 12, passivation flow container; 13, well heater; 14, agitator; 15, phosphatization slag device; 16, PLC controller; 17, phosphatization pond support; 18, manifold support; 19, phosphatization pond engaging lug seat; 20, phosphatization pond; 21, covering box Connection Block; 22, phosphatization Chi Gai; 23, manifold connecting hole; 24, detecting sensor open holes; 25, interior stifled assembly open holes; 26, drain open holes; 27, covering air bag inlet mouth; 28, covering box; 29, covering air bag; 30, covering air bags valve; 31, covering box sealing-ring; 32, covering box baffle plate; 33, interior stifled operation handle arm; 34, interior stifled pull bar pivoted arm; 35, interior stifled draw rod positioning nut; 36, interior stifled skeleton set nut; 37, interior stifled skeleton pad; 38, interior stifled backbone sealing ring; 39, interior stifled skeleton; 40, interior stifled capsule; 41, interior stifled capsule clamp ring; 42, interior stifled capsule force transmission ring; 43, interior stifled pull bar circlip; 44, interior stifled pull bar, K1～K11 is a magnetic valve, P1～P5 is a pump.
Claims (3)
1. stone oil drill collar joint screw thread surface heat phosphating plant, it is characterized in that, comprise phosphatization pond support (17), phosphatization pond support (17) links to each other with phosphatization pond assembly (2), one side of phosphatization pond assembly (2) is connected with drill collar joint screw thread covering assembly (3), the opposite side of phosphatization pond assembly (2) is connected with stifled assembly (4) in the drill collar joint screw thread, five groups of manifolds (6) are connected with the phosphatization pond (20) of phosphatization pond assembly (2), phosphatization pond (20) is equipped with transmitter (5-1), and compressed air tank (7) is connected with drill collar joint screw thread covering assembly (3) by magnetic valve K11; Magnetic valve K1, magnetic valve K6, pump P1 and degreasing rust cleaning flow container (8) connect to form degreasing rust cleaning liquid circulation loop by manifold (6) and first group of manifold connecting hole (23) and drain open holes (26); Magnetic valve K2, magnetic valve K7, pump P2 and clear water jar (9) connect to form the clear water circulation loop by pipe (6) and second group of manifold connecting hole (23) and drain open holes (26); Magnetic valve K3, magnetic valve K8, pump P3 and table are transferred flow container (10) to connect to form table by manifold (6) and the 3rd group of manifold connecting hole (23) and drain open holes (26) and are transferred the liquid circulation loop; Magnetic valve K4, magnetic valve K9, pump P4 and phosphatization flow container (11) connect to form phosphatization liquid circulation loop by manifold (6) and the 4th group of manifold connecting hole (23) and drain open holes (26); Magnetic valve K5, magnetic valve K10, pump P5 and passivation flow container (12) connect to form the passivating solution circulation loop by manifold (6) and the 5th group of manifold connecting hole (23) and drain open holes (26); Degreasing rust cleaning flow container (8), clear water jar (9), table transfer the inside of flow container (10), phosphatization flow container (11) and passivation flow container (12) that agitator (14) all is installed, the outside all is equipped with transmitter (5-2) and well heater (13), transmitter (5-1), transmitter (5-2), well heater (13), agitator (14), magnetic valve K1～K11 and pump P1～P5 all are connected to PLC controller (16), component devices Controlling System.
2. a kind of stone oil drill collar joint screw thread surface heat phosphating plant according to claim 1, it is characterized in that, described drill collar joint screw thread covering assembly (3) comprises covering air bag inlet mouth (27), covering air bag inlet mouth (27) communicates with covering air bag (29) inner chamber, is connected and fixed by screw thread and covering box (28); Covering air bags valve (30) communicates with covering air bag (29) inner chamber, is connected and fixed by screw thread and covering box (28); Covering box (28) is close to covering box sealing-ring (31), covering box baffle plate (32) successively and is connected with phosphatization pond (20) by covering box Connection Block (21) with bolt; Covering air bag (29) places covering box (28), and covering air bag (29) outer wall is fixed with glue and covering box (28) inwall adhesion; Drill collar (1) places covering air bag (29).
3. a kind of stone oil drill collar joint screw thread surface heat phosphating plant according to claim 1, it is characterized in that, stifled skeleton (39) in stifled assembly (4) comprises in the described drill collar joint screw thread, stifled backbone sealing ring (38) blocked up assembly open holes (25) in placing in interior stifled skeleton (39) was close to, and with stifled skeleton pad (37) and interior stifled skeleton set nut (36) interior stifled skeleton (39) was fixed on the phosphatization pond (20); The endoporus of stifled skeleton (39) in interior stifled pull bar (44) places is fixed in interior blocking up on the skeleton (39) with interior stifled pull bar set screw nut (35); In stifled pull bar (44) and interior stifled pull bar set screw nut (35) by being threaded; Stifled pull bar pivoted arm (34) and interior stifled operation handle arm (33) in interior stifled pull bar (44) one sides are installed respectively; Stifled skeleton (39) opposite side in interior stifled capsule (40) endoporus places uses interior stifled capsule clamp ring (41), interior stifled capsule force transmission ring (42), interior stifled pull bar circlip (43) to be fixed in interior blocking up on the skeleton (39) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110253181 CN102296287B (en) | 2011-08-30 | 2011-08-30 | Petroleum drill collar joint thread surface hot phosphating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110253181 CN102296287B (en) | 2011-08-30 | 2011-08-30 | Petroleum drill collar joint thread surface hot phosphating device |
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| Publication Number | Publication Date |
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| CN102296287A true CN102296287A (en) | 2011-12-28 |
| CN102296287B CN102296287B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110253181 Expired - Fee Related CN102296287B (en) | 2011-08-30 | 2011-08-30 | Petroleum drill collar joint thread surface hot phosphating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561985A (en) * | 2014-12-17 | 2015-04-29 | 新疆通奥油田技术服务有限公司 | Pipe thread phosphating facility |
| CN109666929A (en) * | 2019-01-29 | 2019-04-23 | 江西中超泵业有限公司 | A kind of vane pump production passivation auxiliary device |
Citations (3)
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|---|---|---|---|---|
| CN201010692Y (en) * | 2007-03-20 | 2008-01-23 | 吐哈石油勘探开发指挥部机械厂 | Automatic ultrasonic cleaning and phosphorizing device for 8 grooves type oil casing joint |
| CN101696497A (en) * | 2009-10-23 | 2010-04-21 | 中国石油集团川庆钻探工程有限公司 | Closed circulating heating thermal phosphorization device and phosphorization method |
| CN202246866U (en) * | 2011-08-30 | 2012-05-30 | 西安石油大学 | Thread surface hot phosphating device for petroleum drill collar joint |
-
2011
- 2011-08-30 CN CN 201110253181 patent/CN102296287B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201010692Y (en) * | 2007-03-20 | 2008-01-23 | 吐哈石油勘探开发指挥部机械厂 | Automatic ultrasonic cleaning and phosphorizing device for 8 grooves type oil casing joint |
| CN101696497A (en) * | 2009-10-23 | 2010-04-21 | 中国石油集团川庆钻探工程有限公司 | Closed circulating heating thermal phosphorization device and phosphorization method |
| CN202246866U (en) * | 2011-08-30 | 2012-05-30 | 西安石油大学 | Thread surface hot phosphating device for petroleum drill collar joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561985A (en) * | 2014-12-17 | 2015-04-29 | 新疆通奥油田技术服务有限公司 | Pipe thread phosphating facility |
| CN104561985B (en) * | 2014-12-17 | 2017-07-07 | 新疆通奥油田技术服务有限公司 | Tubing thread phosphating equipment |
| CN109666929A (en) * | 2019-01-29 | 2019-04-23 | 江西中超泵业有限公司 | A kind of vane pump production passivation auxiliary device |
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| CN102296287B (en) | 2013-01-16 |
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Granted publication date: 20130116 Termination date: 20130830 |