CN201991871U - Hollow multistage-sleeve sand-preventing telescopic cylinder system - Google Patents
Hollow multistage-sleeve sand-preventing telescopic cylinder system Download PDFInfo
- Publication number
- CN201991871U CN201991871U CN2010206573447U CN201020657344U CN201991871U CN 201991871 U CN201991871 U CN 201991871U CN 2010206573447 U CN2010206573447 U CN 2010206573447U CN 201020657344 U CN201020657344 U CN 201020657344U CN 201991871 U CN201991871 U CN 201991871U
- Authority
- CN
- China
- Prior art keywords
- telescopic cylinder
- cylinder
- hollow multistage
- husky
- hollow
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a hollow multistage-sleeve sand-preventing telescopic cylinder system, consisting of a hollow multistage-sleeve telescopic cylinder, an upper sealing, an external cylinder, a lower sealing, a sand scraping ring, and a hydraulic pressure parallel system, wherein the hydraulic pressure parallel system consists of a hydraulic pressure source, an overflow valve, a constant pressure valve, an isolation cylinder piston, an oil inlet valve, an oil outlet valve and a pressure gauge. The upper and the lower ends of every stage of the hollow multistage-sleeve telescopic cylinder are respectively provided with an upper seal and a lower seal which form a hydraulic balance cavity with the adjacent cylinders; except for the last stage telescopic cylinder and the external cylinder, each one of the other telescopic cylinders is provided with one or two oil passages, two ends of the oil passages are respectively provided with a hole through which each parallel cavity is communicated in series; the external cylinder of the hollow multistage-sleeve telescopic cylinder is provided with an oil port which is connected with the hydraulic control unit and the hydraulic pressure source by oil pipes. The hollow multistage-sleeve sand-preventing telescopic cylinder has the advantages of good sand-preventing effect, simple structure, reliable and safe work, convenient maintenance, good lubrication and long service life.
Description
Technical field
The utility model relates to a kind of hollow multistage sleeve telescopic cylinder system that adopts in the static seal snubbing serving equipment, especially by hollow multistage sleeve telescopic cylinder, a kind of hollow multistage sleeve sand prevention telescopic cylinder system that goes up sealing, outer cylinder, lower seal, scrape husky ring, comprise that the hydraulic balance system of hydraulic power, relief valve, pressure fixing valve, piston isolation cylinder, oiling valve, draining valve, pressure gauge forms.
Background technique
At present, adopt the snubbing serving equipment of motive sealing mode more in the snubbing serving of oilfield oil well, because of between tubing string and the rubber seal slide relative being arranged, Sealing weares and teares easily, and operating life is short, and efficient is low; The not kill-job equipment that adopts static seal is not because of having slide relative between tubing string and Sealing, and sealing part abrasion is few, long working life, and the efficient height is a kind of advanced person's a snubbing serving equipment; Press the apparatus and process technical requirements, adopt the snubbing serving equipment of static seal that one hollow multistage sleeve telescopic cylinder must be installed, this hollow multi-stage expansion cylinder working inclement condition, working medium is to contain the husky crude oil and the mixture of water, no good lubrication condition, under pressure, containing husky medium can enter in the sealing of telescopic cylinder, quicken the wearing and tearing of telescopic cylinder sealing surface, the life-span of telescopic cylinder is shortened greatly, working efficiency and Security reduce.
Summary of the invention
It is good that the purpose of this utility model provides a kind of dustproof effect, simple in structure, reliable operation, and safety, easy to maintenance, lubricated good, the hollow multistage sleeve sand prevention telescopic cylinder system of long service life.
For achieving the above object, the hollow multistage sleeve sand prevention telescopic cylinder of the utility model system by hollow multistage sleeve telescopic cylinder, go up sealing, outer cylinder, lower seal, scrape husky ring, comprise that the hydraulic balance system of hydraulic power, relief valve, pressure fixing valve, piston isolation cylinder, oiling valve, draining valve, pressure gauge forms, all there are the sealing of going up and lower seal in the two ends up and down of every grade of telescopic cylinder of hollow multistage sleeve telescopic cylinder, form a hydro-cushion chamber between the cylinder barrel that is adjacent; Except that final stage telescopic cylinder and outer cylinder, one to two oil duct is arranged in all the other each telescopic cylinders, respectively there is a port at the oil duct two ends, and each counter balance pocket series connection is communicated with; Hollow multistage sleeve telescopic cylinder outer cylinder has hydraulic fluid port, is connected with hydraulic power with hydraulic control component with oil pipe, by adjusting hydraulic control component, keeps the pressure medium in a little higher than hollow multistage sleeve sand prevention telescopic cylinder of counter balance pocket internal pressure.
This oil duct is a screw with long screw pitch shape oil duct, and processing round bottom shape spiral chute drills through the hole on telescopic cylinder, and built-up welding behind the insert fine steel tube is carried out fine finishing again through heat treatment and made.
This oil duct also can be axially straight oil duct, the axial round bottom shape straight trough of processing on telescopic cylinder, and built-up welding behind the insert fine steel tube is carried out fine finishing again through heat treatment and is made.
The tail end of every grade of telescopic cylinder is scraped husky groove, and bottom land has the husky hole of row, is equipped with in the groove and scrapes husky ring, scrapes husky ring and can move axially in groove.
This is scraped husky ring and scrapes husky ring for the rubber-like diagonal cut joint, and material is an alloy cast iron material.
After adopting the hollow multistage sleeve sand prevention telescopic cylinder of the utility model system, when hollow multistage sleeve telescopic cylinder is flexible, scrapes the grains of sand that Sha Huanke will stick on the barrel and wipe off and discharge from arranging husky hole; By adjusting hydraulic control component, keep the pressure medium in a little higher than hollow multistage sleeve sand prevention telescopic cylinder of counter balance pocket internal pressure, but be full of hydraulic oil balance media pressure in the counter balance pocket, prevent that the grains of sand from entering counter balance pocket, the insulation blocking effect is played in sealing, and the good lubrication condition is provided; This hollow multistage sleeve sand prevention telescopic cylinder system dustproof effect is good, simple in structure, reliable operation, and safety, lubricated good, easy to maintenance, long service life.
Description of drawings
Fig. 1 is a hollow multistage sleeve sand prevention telescopic cylinder system architecture schematic representation (is example with three grades of cylinders).
Fig. 2 is a screw with long screw pitch shape oil channel structure schematic representation.
Fig. 2 A is a screw with long screw pitch shape oil duct A-A sectional view
Fig. 2 B is a screw with long screw pitch shape oil duct B-B sectional view
Fig. 2 C is a screw with long screw pitch shape oil duct C-C sectional view
Fig. 3 is axially straight oil channel structure schematic representation.
Fig. 3 A is axially straight oil duct A-A sectional view
Fig. 3 B is axially straight oil duct B-B sectional view
Fig. 3 C is axially straight oil duct C-C sectional view
Fig. 4 is for scraping husky ring partial structurtes schematic representation
Fig. 5 is for scraping husky ring plan view
Fig. 5 A is for scraping husky ring plan view
Last adpting flange 1, final stage telescopic cylinder 2, secondary telescopic cylinder 3, on seal 4, one-level telescopic cylinder 5, outer cylinder 6, lower seal 7, scrape husky ring 8, down adpting flange 9, port 10, oil duct 11, hydraulic fluid port 12, draining valve 13, pressure gauge 14, piston isolation cylinder 15, oiling valve 16, pressure fixing valve 17, relief valve 18, hydraulic power 19, round bottom shape groove 20, fine steel tube 21, scrape husky groove 22, the husky hole 23 of row.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to accompanying drawing, a kind of hollow multistage sleeve sand prevention telescopic cylinder system, by one-level telescopic cylinder 5, secondary telescopic cylinder 3, final stage telescopic cylinder 2, on seal 4, outer cylinder 6, lower seal 7, scrape husky ring 8, comprise that the hydraulic balance system of hydraulic power 19, relief valve 18, pressure fixing valve 17, piston isolation cylinder 15, oiling valve 16, draining valve 13, pressure gauge 14 forms, all there are the sealing of going up 4, lower seal 7 in the two ends up and down of every grade of telescopic cylinder of hollow multistage sleeve telescopic cylinder, form a hydro-cushion chamber between the cylinder barrel that is adjacent; Except that final stage telescopic cylinder 2 and outer cylinder 6,1 to 2 oil duct 11 is arranged in all the other each telescopic cylinders, this oil duct 11 is a screw with long screw pitch shape oil duct, processing spirality round bottom shape groove 20 on telescopic cylinder, drill through the hole, the 21 back built-up welding of insert fine steel tube, after heat treatment carrying out fine finishing again forms, this oil duct 11 also can be processed as axially straight oil duct, and the axially straight round bottom shape groove 20 of processing drills through the hole on telescopic cylinder, 21 built-up welding of insert fine steel tube, after heat treatment carry out fine finishing again and form, respectively there is a port 10 at oil duct 11 two ends, and each counter balance pocket series connection is communicated with; Hollow multistage sleeve telescopic cylinder outer cylinder 6 has hydraulic fluid port 12, be connected with hydraulic power 19, relief valve 18, pressure fixing valve 17, piston isolation cylinder 15, oiling valve 16 and draining valve 13 with oil pipe, by adjusting hydraulic control component, keep the pressure medium in a little higher than hollow multistage sleeve sand prevention telescopic cylinder of counter balance pocket internal pressure; The tail end of every grade of telescopic cylinder is scraped husky groove 22, and scraping 22 ends of husky groove has the husky hole 23 of row, scrapes that material is housed in the husky groove 22 is that the rubber-like diagonal cut joint of alloy cast iron material is scraped husky ring 8, scrapes husky ring 8 and can move axially in scraping husky groove 22; Pressure fixing valve 17 setting pressures are greater than oil well pressure medium 5%; Relief valve 18 setting pressures are a bit larger tham pressure fixing valve 17; Piston isolation cylinder 15 is used for isolating the hydraulic oil in the counter balance pocket that may be polluted and the hydraulic oil of 19 li cleanings of hydraulic power; Pressure gauge 14 is used to refer to the pressure in the counter balance pocket; The telescopic cylinder quantity of this hollow multistage sleeve telescopic cylinder system is not limit.
During work, when telescopic cylinder is overhanging, one-level telescopic cylinder 5, secondary telescopic cylinder 3, final stage telescopic cylinder 2 stretches out successively, and the hydro-cushion cavity volume reduces, and oil pressure increases in the chamber, when oil pressure during greater than setting pressure, by relief valve 18 pressure releases.When contracting in the telescopic cylinder, it is big that the counter balance pocket volume becomes, and oil pressure diminishes in the chamber, by pressure fixing valve 17 oil-feed superchargings.No matter telescopic cylinder is in which kind of working position, the counter balance pocket internal pressure all keeps greater than pressure medium, stop medium to enter counter balance pocket, isolation and lubrication are played in sealing, when hollow multistage sleeve telescopic cylinder is flexible, being placed in each telescopic cylinder afterbody scrapes the husky ring 8 of scraping of 22 li diagonal cut joints of husky groove and moves thereupon, scraping husky ring 8 can also move axially in scraping husky groove 22, the grains of sand that stick on the barrel are wiped off and discharged from arranging husky hole 23, be in complete overhanging state at telescopic cylinder, open draining valve 13, discharge contaminated hydraulic oil, close discharging fuel tap 13 then, open oiling valve 17, telescopic cylinder retraction resets, and clean hydraulic oil is full of counter balance pocket, promptly finishes the work of changing oil after closing oiling valve 17.
Claims (5)
1. hollow multistage sleeve sand prevention telescopic cylinder system, by: hollow multistage sleeve telescopic cylinder, go up sealing, outer cylinder, lower seal, scrape husky ring, comprise that the hydraulic balance system of hydraulic power, relief valve, pressure fixing valve, piston isolation cylinder, oiling valve, draining valve, pressure gauge forms, it is characterized in that: all there are the sealing of going up, lower seal in the two ends up and down of every grade of telescopic cylinder of hollow multistage sleeve telescopic cylinder, form a hydro-cushion chamber between the cylinder barrel that is adjacent; Except that final stage telescopic cylinder and outer cylinder, one to two oil duct is arranged in all the other each telescopic cylinders, respectively there is a port at the oil duct two ends, and each counter balance pocket series connection is communicated with; Hollow multistage sleeve telescopic cylinder outer cylinder has hydraulic fluid port, is connected with hydraulic power with hydraulic control component with oil pipe.
2. hollow multistage sleeve sand prevention telescopic cylinder according to claim 1 system, it is characterized in that: this oil duct is a screw with long screw pitch shape oil duct, behind processing round bottom shape groove on the telescopic cylinder, the built-up welding of insert fine steel tube forms.
3. hollow multistage sleeve sand prevention telescopic cylinder according to claim 1 system, it is characterized in that: this oil duct is axially straight oil duct, behind processing round bottom shape groove on the telescopic cylinder, the built-up welding of insert fine steel tube forms.
4. hollow multistage sleeve sand prevention telescopic cylinder according to claim 1 system, it is characterized in that: the tail end of every grade of telescopic cylinder is scraped husky groove, and bottom land has the husky hole of row, is equipped with in the groove to scrape husky ring, scrapes husky ring and can move axially in groove.
5. according to claim 1 or 4 described hollow multistage sleeve sand prevention telescopic cylinder systems, it is characterized in that: this is scraped husky ring and scrapes husky the ring for the rubber-like diagonal cut joint, and material is an alloy cast iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206573447U CN201991871U (en) | 2010-12-10 | 2010-12-10 | Hollow multistage-sleeve sand-preventing telescopic cylinder system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206573447U CN201991871U (en) | 2010-12-10 | 2010-12-10 | Hollow multistage-sleeve sand-preventing telescopic cylinder system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991871U true CN201991871U (en) | 2011-09-28 |
Family
ID=44668360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206573447U Expired - Fee Related CN201991871U (en) | 2010-12-10 | 2010-12-10 | Hollow multistage-sleeve sand-preventing telescopic cylinder system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991871U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206425A (en) * | 2013-04-28 | 2013-07-17 | 扬州核威碟形弹簧制造有限公司 | Multilevel adjustable hydraulic cylinder |
| CN103599855A (en) * | 2013-11-29 | 2014-02-26 | 江苏牡丹离心机制造有限公司 | Peeler centrifuge with scraper rod sheath |
| CN104358739A (en) * | 2014-11-07 | 2015-02-18 | 青岛卓通液压机械设备有限公司 | Back-push type multistage hydraulic oil cylinder |
-
2010
- 2010-12-10 CN CN2010206573447U patent/CN201991871U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206425A (en) * | 2013-04-28 | 2013-07-17 | 扬州核威碟形弹簧制造有限公司 | Multilevel adjustable hydraulic cylinder |
| CN103206425B (en) * | 2013-04-28 | 2015-06-24 | 扬州核威碟形弹簧制造有限公司 | Multilevel adjustable hydraulic cylinder |
| CN103599855A (en) * | 2013-11-29 | 2014-02-26 | 江苏牡丹离心机制造有限公司 | Peeler centrifuge with scraper rod sheath |
| CN104358739A (en) * | 2014-11-07 | 2015-02-18 | 青岛卓通液压机械设备有限公司 | Back-push type multistage hydraulic oil cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106334635B (en) | Online three-stage rotational flow dehydration device for submarine pipeline | |
| CN201991871U (en) | Hollow multistage-sleeve sand-preventing telescopic cylinder system | |
| WO2003058023A1 (en) | A power transmission unit of an impactor, a hydraulic jet impactor and the application thereof | |
| CA2704528C (en) | Vessel to condition dry drill cuttings | |
| DE60210803T2 (en) | BOREOLE PUMP ASSEMBLY AND METHOD FOR OBTAINING BOREOOL LIQUIDS | |
| CN105399227B (en) | Gas field fracturing flow-back fluid recovery treatment device and method | |
| RU2542651C1 (en) | Pump, pump plant and fluid lifting process | |
| CN206668533U (en) | Slush pump | |
| CN204312028U (en) | Underground coal mine horizontal orientation km rig water treatment facilities | |
| CN203822185U (en) | Anti-spray automatic protection device for drill rod | |
| RU2407881C1 (en) | Filter for downhole hydraulic engine | |
| KR100692710B1 (en) | Circulating system of coolant for machine | |
| CN208764286U (en) | A kind of self-lubricating device of double-stage driving gearbox | |
| CN2625668Y (en) | Manual and hydraulic wear-resistant slag discharge valve | |
| CN208828041U (en) | Petrochemical industry deck floor drain | |
| CN210317233U (en) | Swabbing blowout preventer | |
| CN210131449U (en) | Drainage device with adjusting function for mine underground drainage | |
| CN208778199U (en) | A kind of oil-extraction vehicle oil well pump | |
| CN209195305U (en) | A kind of continuous inverse circular sand washing adapter Flushing tubular column | |
| CN109340550B (en) | Flushing process and flushing device for main pipeline of mobile water tank lubricant | |
| CN220302185U (en) | Underground slurry pressure reducing device for coal mine | |
| CN207478042U (en) | A kind of oil-free lubrication reciprocating compressor blowdown apparatus | |
| CN208417494U (en) | A kind of ensuring equipment of vertical type transmission gearbox | |
| CN106401511A (en) | High-pressure filtering throttle manifold and filtering throttling method thereof | |
| CN205222843U (en) | Gas field fracturing flow-back fluid recovery treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |