CN104847289B - Water conveyance steel tube fishing device in a kind of water supply well - Google Patents
Water conveyance steel tube fishing device in a kind of water supply well Download PDFInfo
- Publication number
- CN104847289B CN104847289B CN201510308611.7A CN201510308611A CN104847289B CN 104847289 B CN104847289 B CN 104847289B CN 201510308611 A CN201510308611 A CN 201510308611A CN 104847289 B CN104847289 B CN 104847289B
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- Prior art keywords
- steel pipe
- steel tube
- salvaging
- fisher
- drilling rod
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 180
- 239000010959 steel Substances 0.000 title claims abstract description 180
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 238000005553 drilling Methods 0.000 claims abstract description 54
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000012634 fragment Substances 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 210000002445 nipple Anatomy 0.000 description 5
- 235000020681 well water Nutrition 0.000 description 4
- 239000002349 well water Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses water conveyance steel tube fishing devices in a kind of water supply well, including revolution pressurization lifting system and fisher, the top of the fisher is connected with revolution compression system promotion, the fisher, including a salvaging steel pipe, cutting edge is installed in the bottom of the salvaging steel pipe, it is equipped with acclivitous top flat in the inner wall of the salvaging steel pipe, revolution pressurization lifting system, including boom hoisting, drilling rod, rock-core borer, hydraulic jack, the boom hoisting is connected with the top of drilling rod, the bottom of drilling rod is connected with fisher, the drilling rod drives its rotation by rock-core borer, the hydraulic jack provides for drilling rod to upward pressure.The clip object between water conveyance steel tube in well and the water supply well borehole wall is disposed by fishing device, releases the crowded grip force of water conveyance steel tube and wall casing or the borehole wall, and accident water conveyance steel tube is salvaged by turning round lifting device.
Description
Technical field
The present invention relates to water conveyance steel tube fishing devices in a kind of water supply well, belong to industry and supply equipment in civilian water supply well
Facility repairs field.
Background technology
Industry or domestic water supply water supply well usually use steel pipe as water-supply-pipe in well, using flanged joint between steel pipe.
In the long-term use, water-supply-pipe or connecting flange are rusted in well.Sometimes on repairing well or when underground equipment pipeline, because
Misoperation often falls into pipe wrench, hardware tool or screw etc. in well accidentally, these objects are outstanding be stuck in water conveyance steel tube flange and
It between water supply well wall casing, or is stuck between immersible pump and water source well tubular wall, water delivery pipe clamp water squeezing source well tubular wall in water supply well
Or in the borehole wall, propose that well brings extreme difficulties to water-supply-pipe；In the past fishing tap was conventionally often used to be beaten
Fishing, i.e., bore die nipple in water-supply-pipe in eye, but because the frictional force between die nipple and pipe intraocular wall is limited, often results in public affairs
Cone slips；Sometimes once having a blocked portion object in pipe intraocular, die nipple is difficult to bore into causing not salvaging.When water conveyance steel tube in well can not be by
Scrapping for water supply well is often resulted in when salvaging, not only causes certain economic loss, it is also possible to it is just common to influence industry and resident
Water.
Invention content
The purpose of the present invention is exactly to carry out safe salvaging to accident water conveyance steel tube in water supply well, is disclosed in a kind of water supply well
Water conveyance steel tube fishing device disposes the clip object between water conveyance steel tube in well and the water supply well borehole wall by fishing device, solution
Accident water conveyance steel tube is salvaged except the crowded grip force of water conveyance steel tube and wall casing or the borehole wall, and by turning round lifting device.
To achieve the above object, the present invention adopts the following technical scheme that：
Water conveyance steel tube fishing device in a kind of water supply well, including revolution pressurization lifting system and fisher, the salvaging
Device is connected with revolution compression system promotion, including revolution pressurization lifting system and fisher, the top of the fisher with time
Turn compression system and promote connected, described fisher, including a salvaging steel pipe, is equipped in the bottom of the salvaging steel pipe
When fisher declines, the cutting edge that object is cut is squeezed to card；It is equipped on fisher in the inner wall of the salvaging steel pipe
When rising, the top flat for withstanding water conveyance steel tube ring flange, the top flat tilts upwards.
The revolution pressurization lifting system, including boom hoisting, drilling rod, rock-core borer and hydraulic jack, it is described
Boom hoisting is connected with the top of drilling rod, and the bottom of drilling rod is connected with fisher, and the drilling rod drives it by rock-core borer
Rotation, the hydraulic jack provides for drilling rod to upward pressure；When fisher is close on salvaged water conveyance steel tube flange
When place of portion about 1m or so, rock-core borer is started, rock-core borer clamps drilling rod and slowly drives drilling rod revolution, while utilizing lifting
Drilling rod and fisher decentralization are squeezed object with card and contacted by device.The cutting edge of fisher bottom can be by cutting or shock effect, slowly
Slowly card is squeezed object to dispose, and water conveyance steel tube flange and water conveyance steel tube is encased in fisher.
When the top flat of fisher decrease beyond water conveyance steel tube flange, it is slowly lifted up fisher.Determine fisher
When top flat 13 firmly withstands water conveyance steel tube flange, operation clamps the hydraulic jack of drilling rod, passes through drilling rod handle and oil jack
The upward top power that top generates is transmitted on the water conveyance steel tube flange contacted with top flat, in water supply well water conveyance steel tube and water delivery
It lives on steel pipe flange top.Use hydraulic jack strong pressurizing, it is ensured that pressure slowly rises, when discovery drilling rod scope of activities increases
When, illustrate that water conveyance steel tube is lived by top in well；Continue to operate hydraulic jack to drilling rod one jack oil cylinder pressure stroke of rising；So
The clamping slips for unclamping hydraulic jack afterwards carries out hoisting test using boom hoisting；
When lifting force and the revolution pressurization lifting system of boom hoisting, fisher, the water conveyance steel tube being salvaged in well and its
When the total weight of flange is equal, illustrate that water conveyance steel tube and water conveyance steel tube flange etc. have been not present by the crowded phenomenon of card, Ke Yiquan in well
Portion is suggested outside well.
The internal diameter for salvaging steel pipe is more than the diameter of water conveyance steel tube and water conveyance steel tube flange.
The top flat is structure as a whole with steel pipe is salvaged, and top flat is directly processed using steel pipe is salvaged, and this structure can be with
Bigger power is born, prevents that water conveyance steel tube is caused to salvage failure due to falling off for top flat during salvaging.
The outer diameter of the salvaging steel pipe is less than the internal diameter of water supply well wall casing.
Circular steel plate is welded at the salvaging steel pipe top end, and circular steel plate diameter is identical as diameter of steel tube is salvaged, round
Steel plate center processes through-hole, and processing and drilling rod screw thread in mating connection on through-hole.
The salvaging steel pipe bottom is welded with cutting edge with hard alloy fragment, the cutting edge be divided into bottom go out sword,
Inside go out sword and outgoing sword, the bottom goes out sword and is arranged in the bottom end for salvaging steel pipe, it is described in go out sword setting and salvaging steel pipe bottom
On the inner wall in portion, the outgoing sword is arranged on the outer wall for salvaging steel pipe bottom.
It is bigger 40mm than flange disk diameter to go out ring-type internal diameter at sword in described.
The top flat every big 0.5m of water conveyance steel tube length of ratio at a distance from salvaging steel duct top；The top flat
Width is more than 50mm.
The top flat totally 3 and uniformly distributed in 120 ° on salvaging steel pipe same cross section, top flat is tilted to pipe, tilts
Three top flat inner edges are in the same cross-sectional circumferential vertical with steel pipe is salvaged afterwards, and circle diameter is than water conveyance steel tube flange diameter
Big 5mm, and during salvaging steel pipe is walked downwards, by slowly turning round salvaging steel pipe, make 3 top flat outer inclined-planes slowly method
Blue disk receives in the steel pipe at top flat and gradually makes salvaging steel pipe and ring flange concentric, then make top flat under outer power drive to
Under when walking, ring flange can be passed through；During being salvaged upwards to accident water conveyance steel tube, make salvaging steel pipe and ring flange as possible
Bias utilizes the bias for salvaging steel pipe and ring flange so that at least one in 3 top flats withstands ring flange, then by accident
Water conveyance steel tube salvages.
Beneficial effects of the present invention are as follows：
The present invention by the bottom of fisher go out sword, it is interior go out sword and outgoing sword between water conveyance steel tube in well and the water supply well borehole wall
Clip object carry out machining, release the crowded grip force of water conveyance steel tube and wall casing or the borehole wall, then pass through and turn round lifting device
Accident water conveyance steel tube is salvaged with fisher, the apparatus structure is simple, easy to use.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is that the structure principle chart that card squeezes object is abolished in fisher of the present invention revolution；
Fig. 2 is the structure principle chart that the present invention salvages water conveyance steel tube；
Fig. 3, Fig. 4 and Fig. 5 are respectively fisher composite structural diagram and partial duty principle enlarged drawing.
Wherein：1 boom hoisting, 2 drilling rods, 3 rock-core borers, 4 hydraulic jacks, 5 fishers, 6 water supply well wall casings, 7 cards
Object is squeezed, 8 water conveyance steel tube flanges, 9 water conveyance steel tubes, 10 circular steel plates, 11 salvage steel pipe, 12 cutting edges, 13 top flats, 14 top flats and method
Blue contact point.
Specific implementation mode
The present invention is further described with case study on implementation below in conjunction with the accompanying drawings.
Fig. 1 to Fig. 5 is connection structure diagram and fisher 5 revolution of present invention revolution pressurization lifting system and fisher 5
It abolishes card and squeezes object 7, and promote the operating principle figure for salvaging water conveyance steel tube flange 8.
Water conveyance steel tube fishing device in a kind of water supply well, including revolution pressurization lifting system and fisher, the salvaging
Device is connected with revolution compression system promotion, fisher 5, including a salvaging steel pipe 11, in the bottom of the salvaging steel pipe 11
Cutting edge 12 is installed, acclivitous top flat 13 is equipped in the inner wall of the salvaging steel pipe.When fisher 5 works, to match
It closes connection and uses revolution pressurization lifting system.
Further, revolution pressurization lifting system, including drilling rod 2, hydraulic jack 4, rock-core borer 3, lifting
Device 1, boom hoisting 1 are connected with the top of drilling rod 2, and the bottom of drilling rod 2 is connected with fisher 5, and drilling rod is driven by rock-core borer
Its rotation is moved, the hydraulic jack provides for drilling rod to upward pressure.
The internal diameter for salvaging steel pipe 11 is more than the diameter of water conveyance steel tube 9 and water conveyance steel tube flange 8.
Further, the top flat 13 is structure as a whole with steel pipe 11 is salvaged, and is cut on the tube wall for salvaging steel pipe 11
Three and 13 equal-sized tube wall block of top flat, and only three sides (top, the left side, the right) and bottom edge of cutting tube wall block are not cut
It cuts, then to the interior lateral bend tube wall block for salvaging steel pipe 11, ultimately forms top flat 13, this top flat and the one of salvaging steel pipe 11
Body, therefore, bigger power can be born, prevent from causing water conveyance steel tube to be salvaged due to falling off for top flat during salvaging
Failure.
Further, the top flat 13 can not also be structure as a whole with steel pipe 11 is salvaged, and be welded on salvaging steel pipe
11, this connection type is only suitable for the light or smaller water conveyance steel tube of comparison and salvages.
Further, the outer diameter of the salvaging steel pipe 11 is less than the internal diameter of water supply well wall casing 6.
Further, circular steel plate 10,10 diameter of circular steel plate and salvaging steel pipe are welded in the salvaging steel pipe top end
11 diameters are identical, and 10 center of circular steel plate processes through-hole, and processing and the screw thread in mating connection of drilling rod 2 on through-hole.
Further, 11 bottom of salvaging steel pipe is welded with cutting edge 12 with hard alloy fragment,
The cutting edge 12 divide for bottom go out sword, it is interior go out sword and outgoing sword, the bottom, which goes out sword and is arranged, is salvaging steel pipe
Bottom end, it is described in go out sword and be arranged on the inner wall for salvaging steel pipe bottom, the outgoing sword, which is arranged, is salvaging steel pipe bottom
On outer wall.And it is interior go out sword cyclic annular internal diameter it is bigger 40mm than flange disk diameter.
Further, the top flat 13 every water conveyance steel tube length of ratio at a distance from salvaging steel duct top is big
0.5m；The top panel width is not less than 50mm.
Further, the top flat 13 totally 3 and uniformly distributed in 120 ° on salvaging steel pipe same cross section, top flat is to pipe
Tilted, three top flat inner edges are in the same cross-sectional circumferential vertical with steel pipe is salvaged after inclination, and circle diameter compares water delivery
The big 5mm of steel pipe flange diameter can pass through ring flange so that when top flat is walked downwards under outer power drive.
The safety operation technique of water conveyance steel tube fishing device, step are in a kind of water supply well：
Step 1：Salvage 11 selection of steel pipe.It is determined and is salvaged according to the diameter of the water conveyance steel tube flange 8 of water conveyance steel tube in well 9
The internal diameter of steel pipe 11, the general internal diameter 50mm bigger than water conveyance steel tube flange diameter or so for salvaging steel pipe 11.According to water conveyance steel tube 9
The sum of thickness of length and water conveyance steel tube flange 8 chooses the length for salvaging steel pipe, and general length is bigger 0.5m than rear sum of the two.
It salvages steel pipe and selects seamless steel pipe, forbid selecting spiral steel pipe.
Step 2：The making of fisher 5.It salvages 11 upper end of steel pipe and welds circular steel plate 10, circular steel plate diameter and salvaging
11 diameter of steel pipe is identical, and the thickness of circular steel plate 10 is not less than 20mm；Circular steel plate center processes through-hole, and on through-hole
Processing and the screw thread in mating connection of drilling rod 2.It salvages 11 bottom of steel pipe and welds cutting edge 12, cutting edge point with hard alloy fragment
Bottom go out sword, it is interior go out sword and outgoing sword, it is inside and outside go out sword selected according to the difference for salvaging 11 internal diameter of steel pipe and 8 outer diameter of water conveyance steel tube flange
Processing, it is final in go out ring-type internal diameter at sword bigger 40mm than flange disk diameter.It is no less than every that 11 inner tip of steel pipe is salvaged in distance
At the position of root water conveyance steel tube length 0.5m, top flat 13 is processed, 13 width of top flat is not less than 50mm.Top flat 13 3 and is being beaten totally
It drags for uniformly distributed in 120 ° on 11 same cross section of steel pipe.Top flat 13 is bent into pipe, after bending 13 inner edge of top flat with salvage steel pipe
In 11 vertical same cross-sectional circumferentials.Circle diameter is bigger 5mm than 8 diameter of water conveyance steel tube flange.
Step 3：The connection of revolution pressurization lifting system and fisher.The order of connection is from bottom to top：Fisher 5, drilling rod
2, hydraulic jack 4, rock-core borer 3, boom hoisting 1 etc..
Step 4：Safety operation technique.The drilling rod 2 turned round in pressurization lifting system and fisher connected and salvage
Device 5 is transferred in water supply well, when fisher 5 is close to salvaged 8 top about 1m of water conveyance steel tube flange or so place, starts rock
Heart drilling machine 3, rock-core borer 3 clamps drilling rod 2 and slowly drilling rod 2 is driven to turn round, while drilling rod 2 and being beaten using boom hoisting 1
The decentralization of fishing device 5 is squeezed object 7 with card and is contacted.Card slowly can be squeezed object 7 by the cutting edge 12 of fisher bottom by cutting or shock effect
It disposes, and water conveyance steel tube flange 8 and water conveyance steel tube 9 is encased in fisher 5.It is required that 2 rotational speed of drilling rod is not higher than
35r/min is pressurizeed using the dead weight of drilling rod 2 and fisher 5 to cutting edge 12.
Step 4：When the top flat 13 of fisher 5 decrease beyond water conveyance steel tube flange 8, it is slowly lifted up fisher 5.
When determining that the top flat 13 of fisher 5 firmly withstands water conveyance steel tube flange 8 (ensuring that top flat must not be detached from flange), given in Fig. 5
Top flat and flange contact stress point 14, operation clamp the hydraulic jack 4 of drilling rod 2, pass through 2, drilling rod and hydraulic jack 4
The upward top power generated is beaten to be transmitted on the water conveyance steel tube flange 8 contacted with top flat 13, in water supply well water conveyance steel tube 9 and
It lives on the top of water conveyance steel tube flange 8.
Step 5：When being pressurizeed using hydraulic jack semi-finals power, it is ensured that pressure slowly rises, and the oil pressure gauge reaction used is wanted
It is sensitive, the activity condition of drilling rod 2 is examined, when finding that 2 scope of activities of drilling rod increases and the aobvious number of oil pressure gauge reduces, illustrates well
Interior water conveyance steel tube is lived by top.Continue to operate hydraulic jack 4 to drilling rod one jack oil cylinder pressure stroke of rising.Then oil is unclamped
The clamping slips for pressing jack 4 carries out hoisting test using boom hoisting, when the draw-bar donamometer being connect with hoisting device shows revolution
When lifting system, fisher 5 and water conveyance steel tube 9 salvaged in well and its equal total weight of flange 8 of pressurizeing, illustrate defeated in well
Water steel pipe 9 and water conveyance steel tube flange 8 etc. have been not present squeezes phenomenon by card, can all be suggested outside well.
Step 5：Hydraulic jack 4 is laid down respectively, and rock-core borer 3 gradually promotes revolution pressurization using boom hoisting 1
System, fisher 5, water conveyance steel tube flange 8, water conveyance steel tube 9 etc. propose outside water supply well.
Step 6：It operates repeatedly.It is more than revolution pressurization lifting system when hoisting test finds the pulling force that draw-bar donamometer is shown, beats
When dragging for the total weights such as device 5, water conveyance steel tube flange 8 and water conveyance steel tube 9, illustrate that water conveyance steel tube flange 8 and water conveyance steel tube 9 also have by card
Squeeze phenomenon.
When that can be promoted with boom hoisting, drilling rod 2 is promoted using the conventional drill method that carries of probing, until water conveyance steel tube 9 and defeated
Water steel pipe flange 8 is proposed by root outside well.If can not be promoted with boom hoisting, drilling rod is promoted by root using hydraulic jack 4
2, drilling rod 2 is promoted according to the conventional drill method that carries of probing, until water conveyance steel tube 9 and water conveyance steel tube flange 8 are proposed by root outside well.
(5) safety notice of the invention：It is required that the circular steel plate 10 on 5 top of fisher and the welding for salvaging steel pipe 11
It is secured, there is not allowed that desoldering phenomenon；Drilling rod 2 and fisher 5 are using screwed connection and can bear 150 tons of pulling force and do not thread off；
Slips between hydraulic jack 4 and drilling rod 2 is there is not allowed that loosen；2 top of drilling rod securely will be connect and have anti-with boom hoisting 1
De- safety device.Hydraulic jack 4, rock-core borer 3 and boom hoisting 1 must be operated by experienced skilled person.When operation its
The separate scene of his personnel.When rock-core borer 3 drives the pressurization revolution of drilling rod 2, flushing liquor is pumped into well by drilling rod 2, to protect
Hold cooling when cutting edge 12 works.
Embodiment：Village coal mine dormitory area water supply well water-supply-pipe is looked into salvage.It is to put within 1987 to make to look into village mine dormitory water supply well
With.Use diving water supplying pump.Water source well depth 352m, borehole wall bore 273mm, water-supply-pipe is Φ 89 × 4mm seamless steel pipes in well.
Prepare to propose when finding not above water in well to find that water-supply-pipe is obstructed by card when water-supply-pipe, strength finds that hydraulic pipeline exists after pulling out
It is disengaged at well depth 57m, bolt rust is disconnected at disengagement.Think that the pipeline of remaining lower part may be blocked by thing to be difficult to extract.Afterwards
Further investigation reveals that successively thering is small pipe wrench, the hardware tools such as spanner and screw etc. once to fall into well.These objects squeeze object as card
Hydraulic pipeline is stuck in well.It uses under drilling rod connecting sleeve die nipple to eye in abutted flange in well, but rises public when pulling out die nipple afterwards
Cone, which slips, salvages failure.Remaining water conveyance steel tube in well is all salvaged well by present invention success is used.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (1)
1. water conveyance steel tube fishing device in a kind of water supply well, it is characterised in that：Including revolution pressurization lifting system and fisher, institute
The top for the fisher stated is connected with revolution compression system promotion, the fisher, including a salvaging steel pipe, described
The bottom for salvaging steel pipe is equipped with when fisher declines, and the cutting edge that object is cut is squeezed to card；In the salvaging steel pipe
Inner wall be equipped with when fisher rises, the top flat for withstanding water conveyance steel tube ring flange, the top flat tilts upwards；
The revolution pressurization lifting system, including boom hoisting, drilling rod, rock-core borer and hydraulic jack, the lifting
Device is connected with the top of drilling rod, and the bottom of drilling rod is connected with fisher, and the drilling rod drives its rotation by rock-core borer,
The hydraulic jack provides for drilling rod to upward pressure；
The cutting edge be divided into bottom go out sword, it is interior go out sword and outgoing sword, the bottom go out sword be arranged salvage steel pipe bottom end, institute
Go out sword in stating to be arranged on the inner wall for salvaging steel pipe bottom, the outgoing sword is arranged on the outer wall for salvaging steel pipe bottom；
Circular steel plate is welded at the salvaging steel pipe top end, and circular steel plate diameter is identical as diameter of steel tube is salvaged, circular steel plate
Center processes through-hole, and processing and drilling rod screw thread in mating connection on through-hole；
The top flat totally 3 and uniformly distributed in 120 ° on salvaging steel pipe same cross section, top flat is tilted to pipe, three after inclination
A top flat inner edge is in the same cross-sectional circumferential vertical with steel pipe is salvaged, and circle diameter is bigger than water conveyance steel tube flange diameter
5mm；
The salvaging steel pipe bottom is welded with cutting edge with hard alloy fragment；
The cyclic annular internal diameter for going out sword in described is bigger 40mm than flange disk diameter；
The internal diameter for salvaging steel pipe is more than the diameter of water conveyance steel tube and water conveyance steel tube flange, and the outer diameter of the salvaging steel pipe is small
In the internal diameter of water supply well wall casing；
The top flat every big 0.5m of water conveyance steel tube length of ratio at a distance from salvaging steel duct top；The top panel width
More than 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510308611.7A CN104847289B (en) | 2015-06-08 | 2015-06-08 | Water conveyance steel tube fishing device in a kind of water supply well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510308611.7A CN104847289B (en) | 2015-06-08 | 2015-06-08 | Water conveyance steel tube fishing device in a kind of water supply well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847289A CN104847289A (en) | 2015-08-19 |
| CN104847289B true CN104847289B (en) | 2018-09-28 |
Family
ID=53847216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510308611.7A Expired - Fee Related CN104847289B (en) | 2015-06-08 | 2015-06-08 | Water conveyance steel tube fishing device in a kind of water supply well |
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| CN (1) | CN104847289B (en) |
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