CN206769853U - Pit shaft returning fluid filter and catch bits assembly - Google Patents
Pit shaft returning fluid filter and catch bits assembly Download PDFInfo
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- CN206769853U CN206769853U CN201720634907.2U CN201720634907U CN206769853U CN 206769853 U CN206769853 U CN 206769853U CN 201720634907 U CN201720634907 U CN 201720634907U CN 206769853 U CN206769853 U CN 206769853U
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Abstract
It the utility model is related to pit shaft returning fluid filter technical field, it is a kind of pit shaft returning fluid filter and catches bits assembly, it includes filter cylinder, end box cupling, outer barrel assembly, the first union conversion head, the second union conversion head and support frame, filter cylinder outer sheath is equipped with outer barrel assembly, first union conversion head left end is fixedly mounted on outer barrel assembly right-hand member, and taper mounting hole is provided with the outer barrel assembly on the left of cylindricality mounting hole；End box cupling right part is clamped in taper mounting hole, and being fixed with the ring cavity between guide shoe and outer barrel assembly can be fixedly mounted on the inside of outer barrel assembly left end to the support frame of the two formation support, the second union conversion head right-hand member outside.The utility model reasonable and compact in structure, dismounting and convenient later maintenance, the advantages of filter efficiency is high, and its disposal ability is big, suitable for the bridging plug chip filtration operation of pit shaft returning fluid, it is easy to filter liquor further processing or the externally discharge being processed, there is the characteristics of safe, laborsaving, easy, efficient.
Description
Technical field
Pit shaft returning fluid filter technical field is the utility model is related to, is a kind of pit shaft returning fluid filter and catches
Consider assembly to be worth doing.
Background technology
In continuous tubing drill bridging plug operation process is carried out, a large amount of bridging plug chips are contained in pit shaft returning fluid, but be a lack of
The special device filtered to pit shaft returning fluid, it is follow-up to its if the bridging plug chip in pit shaft returning fluid not disposed
Using and discharge adversely affect.
The content of the invention
The utility model provides a kind of pit shaft returning fluid filter and catches bits assembly, overcome above-mentioned prior art it
Deficiency, its can effectively solve it is existing brill bridging plug operation existing for waste time and energy, efficiency of construction is relatively low, asking for potential safety hazard be present
Topic.
One of the technical solution of the utility model is realized by following measures：A kind of pit shaft returning fluid filter
And bits assembly is caught, including filter cylinder, end box cupling, outer barrel assembly, the first union conversion head, the second union conversion head and support frame,
Filter cylinder left end is fixed with the guide shoe that can be blocked to filter cylinder left end, pacifies on the outside of filter cylinder right-hand member with fixed on the inside of the box cupling left end of end
It is fitted together；Filter cylinder outer sheath is equipped with outer barrel assembly, and cylindricality mounting hole, the first union conversion head are provided with the inside of outer barrel assembly right-hand member
Left end is fixedly mounted in cylindricality mounting hole, and the cone in left narrow right wide frustum is provided with the outer barrel assembly on the left of cylindricality mounting hole
Shape mounting hole, the diameter of cylindricality mounting hole are more than the maximum gauge of taper mounting hole；It is in incline to right-hand member outside on the outside of the box cupling of end
Ramp-like, end box cupling right part is clamped in taper mounting hole, and the right side of end box cupling is pushed against on the first union conversion head,
The support frame that can be supported to the two formation, and the ring at left and right sides of support frame are fixed with ring cavity between guide shoe and outer barrel assembly
Chamber turns on, and is fixedly mounted on the outside of the second union conversion head right-hand member on the inside of outer barrel assembly left end.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
Above-mentioned outer barrel assembly may include cylinder, the 3rd union conversion head and the 4th union conversion head, and cylinder right-hand member inner side is admittedly
Determine the first mounting ring groove, the 3rd union conversion head left end is sleeved in the first mounting ring groove, is installed with the outside of cylinder right-hand member
First pressure cap, the first pressure cap right-hand member inner side are fixed with the limited ring dais on the outside of the first union conversion head first, limited in first
The first outer limited ring dais being fixed with the outside of the 3rd union conversion head between position land and cylinder on the inside of the first pressure cap, the
Cylindricality mounting hole and taper mounting hole are sequentially provided with from right to left on the inside of three union conversion head right-hand members；The is provided with the outside of cylinder left end
Two installation annular grooves, the 4th union conversion head right-hand member is sleeved on the outside of the second mounting ring groove, solid on the outside of the 4th union conversion head right-hand member
Dingan County is equipped with the second pressure cap, and limited ring dais in second on the outside of cylinder are fixed with the inside of the second pressure cap right-hand member, are limited in second
The second outer limited ring dais being fixed with the outside of cylinder between position land and the 4th union conversion head on the inside of the second pressure cap, the
The 4th installation annular groove is provided with the inside of four union conversion head left ends, the second union conversion head right-hand member is fixedly mounted on the 4th installation annular groove
It is interior.
The 3rd pressure cap can be installed with the outside of above-mentioned 3rd union conversion head right-hand member, is fixed with the inside of the 3rd pressure cap right-hand member
On the outside of the first union conversion head the 3rd in limited ring dais, in the 3rd between limited ring dais and the first union conversion head
The 3rd outer limited ring dais being fixed with the outside of one union conversion head on the inside of the 3rd pressure cap；On the outside of 4th union conversion head left end
The 4th pressure cap being installed with, the 4th pressure cap left end inner side are fixed with spacing in the 4th on the outside of the second union conversion head
Land, it is fixed with positioned at the 4th pressure cap on the outside of the second union conversion head in the 4th between limited ring dais and the 4th union conversion head
4th outer limited ring dais of inner side.
Above-mentioned support frame may include the collar, upper supporting part and lower supporting part, and guide shoe outside is in left narrow right loose taper, the collar
Middle part is provided with being engaged on the outside of guide shoe in left narrow right loose bellmouth, and guide shoe middle part is clamped in bellmouth, solid at the top of the collar
Surely there is upper supporting part, the upper end of upper supporting part and the outer barrel assembly of correspondence position are fixed together；Collar lower outside is circumferentially
It is in the lower supporting part being spaced apart to be fixed with least two, and each outer barrel assembly of the bottom of lower supporting part with correspondence position is consolidated
It is scheduled on together.
O shapes can be provided between on the outside of above-mentioned first union conversion head left end and on the inside of the 3rd union conversion head right-hand member to seal
Circle, on the outside of the second union conversion head left end and on the inside of the 4th union conversion head right-hand member between be provided with O-ring seals, in cylinder right-hand member
O-ring seals, cylinder left end outside and the 4th union conversion head right-hand member are provided between on the outside of side and the 3rd union conversion head left end
O-ring seals are provided between inner side.
The 3rd installation annular groove can be provided with the inside of above-mentioned 3rd union conversion head right-hand member, is installed in the bottom land of the 3rd installation annular groove
There is the first sealing ring pad, the 5th installation annular groove is provided with the inside of the 4th nonyl conversion head left end, is installed in the bottom land of the 5th installation annular groove
There is the second sealing ring pad.
Four limit card slots can be circumferentially evenly distributed with the left of above-mentioned 3rd outer limited ring dais, the 4th outer limited ring dais are right
Side is circumferentially evenly distributed with four limit card slots.
The two of the technical solution of the utility model are realized by following measures：One kind, which catches bits assembly, includes a mistake
Chimney filter line, the middle part of filtering pipeline are provided with above-mentioned pit shaft returning fluid filter, and the first union conversion head right-hand member is connected with and its phase
The first logical liquid-in pipe, relief valve, movable elbow and cock are sequentially installed with along the opposite direction of liquid flowing on the first liquid-in pipe
Valve；Second union conversion head left end is connected with the first drain pipe communicated therewith, on the first drain pipe along the direction of liquid flowing according to
It is secondary that relief valve, movable elbow and plug valve are installed.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
The movable elbow that can be provided with above-mentioned first liquid-in pipe between relief valve and plug valve；Set on first drain pipe
There is the movable elbow between relief valve and plug valve.
Above-mentioned bits assembly of catching can also include a straight-through pipeline, and straight-through pipeline includes stereoplasm tube, stereoplasm tube right-hand member be connected with and
Its second liquid-in pipe communicated, the second liquid-in pipe are provided with the right-hand member of plug valve, the right-hand member of the second liquid-in pipe and the first liquid-in pipe
Linked together by entering liquid threeway, and enter and main liquid-in pipe is also connected with liquid threeway, main liquid-in pipe is provided with plug valve；Stereoplasm tube
Left end, which is connected with the second drain pipe communicated therewith, the second drain pipe left end and the first drain pipe left end and fixed by goes out liquid threeway, pacifies
It is fitted together, main drain pipe is also connected with goes out liquid threeway.
Above-mentioned bits assembly of catching can also include a straight-through pipeline, and the quantity of filtering pipeline is two, and straight-through pipeline includes
Stereoplasm tube, stereoplasm tube right-hand member are connected with the second liquid-in pipe communicated therewith, and stereoplasm tube left end is connected with the second drain pipe communicated therewith；
The right-hand member of second liquid-in pipe right-hand member and two the first liquid-in pipes is linked together by entering liquid four-way, and is entered and also connected on liquid four-way
There is main liquid-in pipe, main liquid-in pipe is provided with plug valve；The left end of second drain pipe left end and two the first drain pipes is by going out
Liquid four-way links together, and goes out and main drain pipe is also connected with liquid four-way.
The above-mentioned quantity for catching filtering pipeline in bits assembly can be two, and the right-hand member of two the first liquid-in pipes is by entering liquid threeway
Link together, and enter and main liquid-in pipe is also connected with liquid threeway, main liquid-in pipe is provided with plug valve；A left side for two the first drain pipes
End is linked together by goes out liquid threeway, and main drain pipe is also connected with goes out liquid threeway.The utility model reasonable and compact in structure,
Dismounting and convenient later maintenance, the advantages of filter efficiency is high, and its disposal ability is big, it is broken suitable for the bridging plug of pit shaft returning fluid
Consider filtration operation to be worth doing, be easy to filter liquor further processing or the externally discharge being processed, have safe, laborsaving, easy, efficient
Feature.
Brief description of the drawings
Accompanying drawing 1 is the main view cross section structure diagram of the utility model embodiment 1.
Accompanying drawing 2 for accompanying drawing 1 A-A to section view mplifying structure schematic diagram.
Accompanying drawing 3 is the left view structural representation of the first union conversion head in accompanying drawing 1.
Accompanying drawing 4 is the structural representation of the utility model embodiment 3.
Accompanying drawing 5 is the structural representation of the utility model embodiment 4.
Accompanying drawing 6 is the structural representation of the utility model embodiment 5.
Coding in accompanying drawing is respectively：1 is filter cylinder, and 2 be end box cupling, and 3 be the first union conversion head, and 4 be the second union
Conversion head, 5 be guide shoe, and 6 be cylinder, and 7 be the 3rd union conversion head, and 8 be the 4th union conversion head, and 9 be the first pressure cap, and 10 be
Limited ring dais in one, 11 be the first outer limited ring dais, and 12 be the second pressure cap, and 13 be limited ring dais in second, and 14 be to be limited outside second
Position land, 15 be the 3rd pressure cap, and 16 be limited ring dais in the 3rd, and 17 be the 3rd outer limited ring dais, and 18 be the 4th pressure cap, and 19 be the
Limited ring dais in four, 20 be the 4th outer limited ring dais 20, and 21 be the collar, and 22 be upper supporting part, and 23 be lower supporting part, and 24 be O shapes
Sealing ring, 25 be the first sealing ring pad, and 26 be the second sealing ring pad, and 27 be filtering pipeline, and 28 be the first liquid-in pipe, and 29 be pressure release
Valve, 30 be movable elbow, and 31 be plug valve, and 32 be the first drain pipe, and 33 be pressure gauge, and 34 be straight-through pipeline, and 35 be stereoplasm tube,
36 be the second liquid-in pipe, and 37 be into liquid threeway, and 38 be main liquid-in pipe, and 39 be the second drain pipe, and 40 be goes out liquid threeway, is gone out based on 41
Liquid pipe, 42 be into liquid four-way, and 43 be liquid four-way, and 44 be limit card slot.
Embodiment
The utility model is not limited by following embodiments, can according to the technical solution of the utility model and actual conditions come
Determine specific embodiment.
In the utility model, for the ease of description, the description of the relative position relation of each part is according to specification
The Butut mode of accompanying drawing 1 is described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is according to Figure of description 1
Butut direction determine.
The utility model is further described with reference to embodiment and accompanying drawing：
Embodiment 1：As shown in accompanying drawing 1,2,3, the pit shaft returning fluid filter includes filter cylinder 1, end box cupling 2, outer barrel
Assembly, the first union conversion head 3, the second union conversion head 4 and support frame, the left end of filter cylinder 1, which is fixed with, to be carried out to the left end of filter cylinder 1
The guide shoe 5 of closure, the right-hand member of filter cylinder 1 outside and the left end of end box cupling 2 inner side are fixedly installed togather；The outer sheath of filter cylinder 1 is equipped with outer
Cylinder assembly, outer barrel assembly right-hand member inner side are provided with cylindricality mounting hole, and the left end of the first union conversion head 3 is fixedly mounted on cylindricality mounting hole
It is interior, be provided with the taper mounting hole in left narrow right wide frustum in outer barrel assembly on the left of cylindricality mounting hole, cylindricality mounting hole it is straight
Footpath is more than the maximum gauge of taper mounting hole；The outside of end box cupling 2 is in skewed, the right part clamping of end box cupling 2 on the outside of right-hand member
In taper mounting hole, and the right side of end box cupling 2 is pushed against on the first union conversion head 3, between guide shoe 5 and outer barrel assembly
Ring cavity in be fixed with can to the two formation support support frame, and at left and right sides of support frame ring cavity conducting, the second union turn
Change on the outside of first 4 right-hand member and be fixedly mounted on the inside of outer barrel assembly left end.In use, right-hand member and pit shaft by the first union conversion head 3
The intake line of returning fluid is linked together, and the left end of the second union conversion head 4 is connected with the output pipe of pit shaft returning fluid
Together, pit shaft returning fluid is flowed into filter cylinder 1 through the first union conversion head 3 and end box cupling 2, and filter is distributed with the side wall of filter cylinder 1
Hole, pit shaft returning fluid draw filter liquor after filter opening filters, and bridging plug chip is isolated in filter cylinder 1, has reached filtration, filter
Go out liquid stream through support frame and the second union conversion head 4, discharged by output pipe, when the bridging plug chip in filter cylinder 1 is more, pulled down
First union conversion head 3, after end box cupling 2 and filter cylinder 1 are taken out together, bridging plug chip is poured out from right side.This practicality
It is new that there is the advantages of simple in construction, dismounting and convenient later maintenance, filter efficiency is high, and its disposal ability is big, is applied to
Further processing or externally discharge are easy in the bridging plug chip filtration operation of pit shaft returning fluid, the pit shaft returning fluid being processed.
Above-mentioned pit shaft returning fluid filter can be made further optimization and/or improvements according to being actually needed：
As shown in accompanying drawing 1,2,3, outer barrel assembly includes cylinder 6, the 3rd union conversion head 7 and the 4th union conversion head 8, cylinder
Fixed the first mounting ring groove, the left end of the 3rd union conversion head 7 are sleeved in the first mounting ring groove on the inside of the right-hand member of body 6, the right-hand member of cylinder 6
Outside is installed with the first pressure cap 9, is fixed with the inside of the right-hand member of the first pressure cap 9 in the outside of the first union conversion head 3 first
Limited ring dais 10, the outside of the 3rd union conversion head 7 in first between limited ring dais 10 and cylinder 6 are fixed with positioned at the first pressure cap
First outer limited ring dais 11 of 9 inner sides, the right-hand member of the 3rd union conversion head 7 inner side are sequentially provided with cylindricality mounting hole and cone from right to left
Shape mounting hole；The second mounting ring groove is provided with the outside of the left end of cylinder 6, the right-hand member of the 4th union conversion head 8 is sleeved on the second mounting ring groove
Outside, the right-hand member of the 4th union conversion head 8 outside are installed with the second pressure cap 12, are fixed with and are located on the inside of the right-hand member of the second pressure cap 12
Limited ring dais 13 in the second of the outside of cylinder 6, the outside of cylinder 6 in second between the union conversion head 8 of limited ring dais 13 and the 4th
The second outer limited ring dais 14 positioned at the inner side of the second pressure cap 12 are fixed with, the 4th peace is provided with the inside of the left end of the 4th union conversion head 8
Annular groove is filled, the right-hand member of the second union conversion head 4 is fixedly mounted in the 4th installation annular groove.By outer barrel split settings be include cylinder 6,
3rd union conversion head 7 and the three parts of the 4th union conversion head 8, its adjacent part pass through the first pressure cap 9 and the second pressure cap 12
Installation is fixed, is easy to the overall installation and removal of the utility model, also allows for overhauling filter cartridge inside 1, the first pressure
Cap 9 and cylinder 6, which can be connected through a screw thread, to be fixedly installed togather, and the union conversion head 8 of the second pressure cap 12 the 4th can pass through spiral shell
Line, which is connected, to be installed together, and the utility model is had the characteristics of convenient disassembly, stable and good seal.
As shown in accompanying drawing 1,2,3, the 3rd pressure cap 15, the 3rd pressure cap are installed with the outside of the right-hand member of the 3rd union conversion head 7
It is fixed with the limited ring dais 16 in the 3rd of the outside of the first union conversion head 3 on the inside of 15 right-hand members, the He of limited ring dais 16 in the 3rd
The outside of the first union conversion head 3 between first union conversion head 3 is fixed with spacing outside the 3rd of the inner side of the 3rd pressure cap 15
Land 17；The 4th pressure cap 18 being installed with the outside of the left end of 4th union conversion head 8, the left end of the 4th pressure cap 18 inner side are fixed with
The limited ring dais 19 in the 4th of the outside of the second union conversion head 4, in the 4th the union conversion head 8 of limited ring dais 19 and the 4th it
Between the outside of the second union conversion head 4 be fixed with the 4th outer limited ring dais 20 positioned at the inner side of the 4th pressure cap 18.3rd pressure cap 15
And the 3rd can be connected through a screw thread between union conversion head 7 and be fixedly installed togather, the 4th pressure cap 18 and the 4th union conversion head 8
Between can be connected through a screw thread and be fixedly installed togather, make the utility model that further there is stable connection, convenient disassembly and close
Seal the characteristics of good.
As shown in accompanying drawing 1,2,3, support frame includes the collar 21, upper supporting part 22 and lower supporting part 23, and the outside of guide shoe 5 is in a left side
Narrow right wide taper, the middle part of the collar 21 is provided with to be engaged in left narrow right loose bellmouth, the middle part clamping of guide shoe 5 with the outside of guide shoe 5
In bellmouth, the top of the collar 21 is fixed with supporting part 22, and the upper end of upper supporting part 22 and the outer barrel assembly of correspondence position are consolidated
It is scheduled on together；The lower outside of the collar 21 is circumferentially fixed with least two in the lower supporting part 23 being spaced apart, each lower support
The bottom in portion 23 is fixed together with the outer barrel assembly of correspondence position.Above-mentioned upper supporting part 22 and lower supporting part 23 can lead to respectively
Known welding technique is crossed to be fixed with outer barrel assembly；The top of the collar 21, on formed between supporting part 22 and outer barrel assembly
Two fan-shaped cavities, at least one space in lattice-shaped distribution is formed between lower supporting part 23, the collar 21 and outer barrel, to filter
It while cylinder 1 and outer barrel assembly form effective support, ensure that filter out liquid energy smoothly flows to the second conversion head via support frame, protect
The unimpeded of filter liquor circulation passage has been demonstrate,proved, and under the cooperation of support frame and guide shoe 5, filter cylinder 1 effectively can have been fixed into peace
Inside outer barrel assembly, the overall stability of the utility model ensure that.
As shown in accompanying drawing 1,2,3, on the outside of the left end of the first union conversion head 3 between the right-hand member of the 3rd union conversion head 7 inner side
It is close provided with O shapes between the right-hand member of the 4th union conversion head 8 inner side on the outside of the left end of the second union conversion head 4 provided with O-ring seals 24
Seal 24, on the inside of the right-hand member of cylinder 6 and on the outside of the left end of the 3rd union conversion head 7 between be provided with O-ring seals 24, outside the left end of cylinder 6
O-ring seals 24 are provided between on the inside of side and the right-hand member of the 4th union conversion head 8.After in above-mentioned position, O-ring seals 24 are set, enter
One step strengthens the overall sealing of the utility model, prevents pit shaft returning fluid or filter liquor from leaking outside.
The 3rd installation annular groove, the 3rd installation annular groove are provided with as shown in accompanying drawing 1,2,3, on the inside of the right-hand member of the 3rd union conversion head 7
Bottom land in the first sealing ring pad 25 is installed, the 5th installation annular groove, the 5th mounting ring are provided with the inside of the 4th nonyl conversion head left end
Second sealing ring pad 26 is installed in the bottom land of groove.The setting of first sealing ring pad 25 and the second sealing ring pad 26, is easy to this reality
It is connected and sealed with new intake line and output pipe respectively with pit shaft returning fluid.
As shown in accompanying drawing 1,2,3, the 3rd outer left side of limited ring dais 17 is circumferentially evenly distributed with four limit card slots 44, the
The four outer right sides of limited ring dais 20 are circumferentially evenly distributed with four limit card slots 44.The setting of limit card slot 44, is easy to this practicality
The new and cooperation of clamping tool.
Embodiment 2：As accompanying drawing 4,5,6, it is shown, this, which catches bits assembly, includes a filtering pipeline 27, in filtering pipeline 27
Portion is provided with above-mentioned pit shaft returning fluid filter, and the right-hand member of the first union conversion head 3 is connected with the first liquid-in pipe 28 communicated therewith, the
Relief valve 29 and plug valve 31 are sequentially installed with from left to right on one liquid-in pipe 28；The left end of second union conversion head 4 is connected with and it
The first drain pipe 32 communicated, relief valve 29 and plug valve 31 are sequentially installed with from right to left on the first drain pipe 32.Can be upper
Setting pressure gauge 33 on relief valve 29 is stated, is easy to be monitored the pressure of whole filtering pipeline 27, so as to of the present utility model
Operation and maintenance；The keying to whole filtering pipeline 27 can be realized by folding plug valve 31.
To above-mentioned pit shaft returning fluid filter and bits assembly can be caught further optimize or/and change according to being actually needed
Enter：
As accompanying drawing 4,5,6, it is shown, this catch bits assembly first liquid-in pipe 28 be provided with is located at relief valve 29 and plug valve 31
Between movable elbow 30；First drain pipe 32 is provided with the movable elbow 30 between relief valve 29 and plug valve 31.It is living
The dynamic regulation of elbow 30 orientation is changeable, and above-mentioned setting can be such that the utility model is efficiently connected with other fluid delivery lines,
And with bear pressure limit big, good seal performance and it is safe and reliable the characteristics of.
Embodiment 3：As shown in Figure 4, this, which catches bits assembly, also includes a straight-through pipeline 34, and straight-through pipeline 34 includes hard
Pipe 35, the right-hand member of stereoplasm tube 35 are connected with the second liquid-in pipe 36 communicated therewith, and the second liquid-in pipe 36 is provided with plug valve 31, and second enters
The right-hand member of the right-hand member of liquid pipe 36 and the first liquid-in pipe 28 is linked together by entering liquid threeway 37, and is entered and be also connected with liquid threeway 37
Main liquid-in pipe 38, main liquid-in pipe 38 are provided with plug valve 31；The left end of stereoplasm tube 35 is connected with the second drain pipe 39 communicated therewith, the
The left end of two drain pipe 39 is fixedly installed togather with the left end of the first drain pipe 32 by goes out liquid threeway 40, is also connected in goes out liquid threeway 40
There is main drain pipe 41.After a filtering pipeline 27 parallel with one another and a straight-through pipeline 34 are set, when in pit shaft returning fluid not
During containing bridging plug chip, the plug valve 31 of the both sides of filtering pipeline 27 can be closed, pit shaft returning fluid is passed directly into straight-through pipeline
34 are conveyed, and reduce the abrasion to filtering pipeline 27, extend its service life.
Embodiment 4：As shown in Figure 5, this, which catches bits assembly, also includes a straight-through pipeline 34, and the quantity of filtering pipeline 27
For two, straight-through pipeline 34 includes stereoplasm tube 35, and the right-hand member of stereoplasm tube 35 is connected with the second liquid-in pipe 36 communicated therewith, stereoplasm tube 35
Left end is connected with the second drain pipe 39 communicated therewith；The right-hand member of the right-hand member of second liquid-in pipe 36 and two the first liquid-in pipes 28 passes through
Enter liquid four-way 42 to link together, and enter and main liquid-in pipe 38 is also connected with liquid four-way 42, main liquid-in pipe 38 is provided with plug valve 31；
The left end of second drain pipe left end and two the first drain pipes 32 is linked together by going out liquid four-way 43, and goes out liquid four-way 43
On be also connected with main drain pipe 41.After two filtering pipelines 27 parallel with one another and a straight-through pipeline 34 are set, pit shaft is being carried out
During the filtration operation of returning fluid, a filtering pipeline 27 is in opening, in addition a filtering pipeline 27 and straight-through pipeline 34
In closure state；When the pit shaft returning fluid filter in a wherein filtering pipeline 27 needs to tie up inspection, closing can be passed through
The plug valve 31 of the circuit both sides closes circuit, pit shaft returning fluid is filtered through another filtering pipeline 27, ensure that
Continuous firing of the present utility model, prevent from affecting underground work progress adversely.When not containing bridging plug chip in pit shaft returning fluid, can incite somebody to action
The plug valve 31 of two both sides of filtering pipeline 27 is turned off, and pit shaft returning fluid is passed through straight-through pipeline 34 and is conveyed, is subtracted
The small abrasion to filtering pipeline 27, extend its service life.
Embodiment 5：As shown in Figure 6, the quantity for catching filtering pipeline 27 in bits assembly is two, two the first liquid-in pipes
28 right-hand member is linked together by entering liquid threeway 37, and enters and main liquid-in pipe 38 is also connected with liquid threeway 37, on main liquid-in pipe 38
Provided with plug valve 31；The left end of two the first drain pipes 32 is linked together by goes out liquid threeway 40, and in goes out liquid threeway 40 also
It is connected with main drain pipe 41.After setting two filtering pipelines 27 parallel with one another, when the pit shaft returning fluid mistake in a wherein circuit
When filter device carries out dimension inspection, it can be turned off by closing the plug valve 31 of the circuit both sides, make pit shaft returning fluid through another
Filtering pipeline 27 is filtered, and ensure that continuous firing of the present utility model, prevents the maintenance of pit shaft returning fluid filter from making
Into affecting adversely for underground work.
Above technical characteristic constitutes embodiment of the present utility model, and it has stronger adaptability and preferably implements to imitate
Fruit, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.
Claims (10)
1. a kind of pit shaft returning fluid filter, it is characterised in that turn including filter cylinder, end box cupling, outer barrel assembly, the first union
Head, the second union conversion head and support frame are changed, filter cylinder left end is fixed with the guide shoe that can be blocked to filter cylinder left end, filter cylinder right-hand member
It is fixedly installed togather on the inside of outside and end box cupling left end；Filter cylinder outer sheath is equipped with outer barrel assembly, outer barrel assembly right-hand member inner side
Provided with cylindricality mounting hole, the first union conversion head left end is fixedly mounted in cylindricality mounting hole, the outer barrel on the left of cylindricality mounting hole
The taper mounting hole in left narrow right wide frustum is provided with assembly, the diameter of cylindricality mounting hole is straight more than the maximum of taper mounting hole
Footpath；It is in skewed on the outside of right-hand member on the outside of end box cupling, end box cupling right part is clamped in taper mounting hole, and end box cupling
Right side is pushed against on the first union conversion head, and being fixed with the ring cavity between guide shoe and outer barrel assembly can support to the two formation
Support frame, and the ring cavity conducting at left and right sides of support frame is fixedly mounted on outer barrel assembly on the outside of the second union conversion head right-hand member
On the inside of left end.
2. pit shaft returning fluid according to claim 1 filter, it is characterised in that outer barrel assembly include cylinder, the 3rd by
Nonyl conversion head and the 4th union conversion head, the fixed the first mounting ring groove in cylinder right-hand member inner side, the 3rd union conversion head left end suit
The first pressure cap is installed with the first mounting ring groove, on the outside of cylinder right-hand member, is fixed with the inside of the first pressure cap right-hand member positioned at the
Limited ring dais in first on the outside of one union conversion head, it is solid on the outside of the 3rd union conversion head in first between limited ring dais and cylinder
Surely there are the first outer limited ring dais on the inside of the first pressure cap, post is sequentially provided with from right to left on the inside of the 3rd union conversion head right-hand member
Shape mounting hole and taper mounting hole；It is provided with the second mounting ring groove on the outside of cylinder left end, the 4th union conversion head right-hand member is sleeved on the
On the outside of two installation annular grooves, the second pressure cap is installed with the outside of the 4th union conversion head right-hand member, is fixed on the inside of the second pressure cap right-hand member
There are a limited ring dais in second on the outside of the cylinder, it is solid on the outside of the cylinder in second between limited ring dais and the 4th union conversion head
Surely there are the second outer limited ring dais on the inside of the second pressure cap, the 4th installation annular groove be provided with the inside of the 4th union conversion head left end,
Second union conversion head right-hand member is fixedly mounted in the 4th installation annular groove.
3. pit shaft returning fluid according to claim 2 filter, it is characterised in that on the outside of the 3rd union conversion head right-hand member
The 3rd pressure cap is installed with, spacing ring in the 3rd on the outside of the first union conversion head is fixed with the inside of the 3rd pressure cap right-hand member
Platform, it is fixed with the 3rd pressure cap on the outside of the first union conversion head in the 3rd between limited ring dais and the first union conversion head
3rd outer limited ring dais of side；The 4th pressure cap being installed with the outside of 4th union conversion head left end, in the 4th pressure cap left end
Side is fixed with limited ring dais in the 4th on the outside of the second union conversion head, limited ring dais and the 4th union conversion head in the 4th
Between the second union conversion head on the outside of be fixed with the 4th outer limited ring dais on the inside of the 4th pressure cap.
4. the pit shaft returning fluid filter according to claim 1 or 2 or 3, it is characterised in that support frame include the collar, on
Supporting part and lower supporting part, guide shoe outside is in left narrow right loose taper, and collar middle part is provided with and guide shoe outside is engaged in left narrow
Right wide bellmouth, be clamped in bellmouth in the middle part of guide shoe, be fixed with supporting part at the top of the collar, the upper end of upper supporting part with it is right
The outer barrel assembly of position is answered to be fixed together；Collar lower outside is circumferentially fixed with least two in the lower support being spaced apart
Portion, each outer barrel assembly of the bottom of supporting part with correspondence position is fixed together down.
5. pit shaft returning fluid according to claim 4 filter, it is characterised in that on the outside of the first union conversion head left end
And the 3rd on the inside of union conversion head right-hand member between be provided with O-ring seals, on the outside of the second union conversion head left end and the 4th union turn
O-ring seals are provided between changing on the inside of a right-hand member, O shapes are provided between the 3rd union conversion head left end outside on the inside of cylinder right-hand member
Sealing ring, O-ring seals are provided between cylinder left end outside and the 4th union conversion head right-hand member inner side；Or/and the 3rd union turn
Change on the inside of a right-hand member and be provided with the 3rd installation annular groove, the first sealing ring pad is installed in the bottom land of the 3rd installation annular groove, the 4th nonyl turns
Change on the inside of a left end and be provided with the 5th installation annular groove, the second sealing ring pad is installed in the bottom land of the 5th installation annular groove；Or/and the
Four limit card slots are circumferentially evenly distributed with the left of three outer limited ring dais, are circumferentially uniformly distributed on the right side of the 4th outer limited ring dais
There are four limit card slots.
6. a kind of catch bits assembly using the pit shaft returning fluid filter of claim 1 or 2 or 3 or 4 or 5, its feature exists
Above-mentioned pit shaft returning fluid filter is provided with the middle part including a filtering pipeline, filtering pipeline, the first union conversion head is right
End is connected with the first liquid-in pipe communicated therewith, and the opposite direction flowed on the first liquid-in pipe along liquid is sequentially installed with relief valve, work
Dynamic elbow and plug valve；Second union conversion head left end is connected with the first drain pipe communicated therewith, along liquid on the first drain pipe
The direction of flowing is sequentially installed with relief valve, movable elbow and plug valve.
7. according to claim 6 catch bits assembly, it is characterised in that the first liquid-in pipe, which is provided with, is located at relief valve and cock
Movable elbow between valve；First drain pipe is provided with the movable elbow between relief valve and plug valve.
8. according to claim 7 catch bits assembly, it is characterised in that also including a straight-through pipeline, leading directly to pipeline is included firmly
Matter pipe, stereoplasm tube right-hand member are connected with the second liquid-in pipe communicated therewith, and the second liquid-in pipe is provided with plug valve, the right side of the second liquid-in pipe
The right-hand member of end and the first liquid-in pipe is linked together by entering liquid threeway, and enters and main liquid-in pipe is also connected with liquid threeway, and master enters liquid
Pipe is provided with plug valve, and stereoplasm tube left end is connected with the second drain pipe communicated therewith, the second drain pipe left end and the first drain pipe
Left end is fixedly installed togather by goes out liquid threeway, and main drain pipe is also connected with goes out liquid threeway.
9. according to claim 7 catch bits assembly, it is characterised in that also including a straight-through pipeline, and the number of filtering pipeline
Measure as two, straight-through pipeline includes stereoplasm tube, and stereoplasm tube right-hand member is connected with the second liquid-in pipe communicated therewith, and stereoplasm tube left end is connected with
The second drain pipe communicated therewith；The right-hand member of second liquid-in pipe right-hand member and two the first liquid-in pipes is connected to by entering liquid four-way
Together, and enter also to be connected with main liquid-in pipe on liquid four-way, main liquid-in pipe is provided with plug valve；Second drain pipe left end and two first
The left end of drain pipe is linked together by going out liquid four-way, and goes out and main drain pipe is also connected with liquid four-way.
10. according to claim 7 catch bits assembly, it is characterised in that the wherein quantity of filtering pipeline is two, two the
The right-hand member of one liquid-in pipe is linked together by entering liquid threeway, and enters and main liquid-in pipe is also connected with liquid threeway, is set on main liquid-in pipe
There is plug valve；The left end of two the first drain pipes is linked together by goes out liquid threeway, and master is also connected with goes out liquid threeway and goes out liquid
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634907.2U CN206769853U (en) | 2017-06-02 | 2017-06-02 | Pit shaft returning fluid filter and catch bits assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634907.2U CN206769853U (en) | 2017-06-02 | 2017-06-02 | Pit shaft returning fluid filter and catch bits assembly |
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| Publication Number | Publication Date |
|---|---|
| CN206769853U true CN206769853U (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720634907.2U Active CN206769853U (en) | 2017-06-02 | 2017-06-02 | Pit shaft returning fluid filter and catch bits assembly |
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| Country | Link |
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| CN (1) | CN206769853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457618A (en) * | 2018-03-21 | 2018-08-28 | 中国石油集团渤海钻探工程有限公司 | A kind of flexibility press-fracturing bridge plug fixed frame |
-
2017
- 2017-06-02 CN CN201720634907.2U patent/CN206769853U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457618A (en) * | 2018-03-21 | 2018-08-28 | 中国石油集团渤海钻探工程有限公司 | A kind of flexibility press-fracturing bridge plug fixed frame |
| CN108457618B (en) * | 2018-03-21 | 2020-03-24 | 中国石油集团渤海钻探工程有限公司 | Fixing frame for flexible fracturing bridge plug |
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