CN107120067B - A kind of diamond geological core bit using heat pipe heat radiation - Google Patents
A kind of diamond geological core bit using heat pipe heat radiation Download PDFInfo
- Publication number
- CN107120067B CN107120067B CN201710493877.2A CN201710493877A CN107120067B CN 107120067 B CN107120067 B CN 107120067B CN 201710493877 A CN201710493877 A CN 201710493877A CN 107120067 B CN107120067 B CN 107120067B
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- heat pipe
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- steel body
- heat
- threaded hole
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 29
- 239000010432 diamond Substances 0.000 title claims abstract description 29
- 230000005855 radiation Effects 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000012546 transfer Methods 0.000 claims abstract description 42
- 239000011159 matrix material Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000009833 condensation Methods 0.000 claims abstract description 11
- 230000005494 condensation Effects 0.000 claims abstract description 11
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 13
- 238000005553 drilling Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 12
- 239000012530 fluid Substances 0.000 description 11
- 239000011435 rock Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000012224 working solution Substances 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
-
- 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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
-
- 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
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
-
- 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
- E21B12/00—Accessories for drilling tools
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of diamond geological core bit using heat pipe heat radiation, belong to geological drilling technology field, including bit matrix, steel body, the mouth of a river, heat pipe and heating column, the bit matrix is connect with steel body, bit matrix is made of carcass working lining and the excessive layer of carcass, and steel body threaded hole is provided in the axial direction in steel body；The mouth of a river is opened on bit matrix and bit matrix is separated into several wings, and corresponds to steel body screw thread hole site on wing and offer the carcass threaded hole axially penetrated through along wing；The heat pipe is divided into evaporator section and condensation segment two parts, and evaporator section is mounted in carcass threaded hole, and condensation segment is mounted in steel body threaded hole, and working medium is injected in heat pipe；The heating column is threadedly coupled with heat pipe constitutes heat transfer component, heating column is mounted in carcass threaded hole, and heating column height is equal with carcass work layer height, the drill bit structure design that the present invention refers to plays the effect of double-radiation function cooling, accelerates the cooling of diamond drill bit matrix bottom.
Description
Technical field
The invention belongs to geological drilling technology field, specially a kind of diamond geological column drill using heat pipe heat radiation
Head.
Background technology
In geological drilling field, the heel and toe wear rate of diamond bit is up to 30%~40%, in the heel and toe wear,
Major part belongs to thermal wear.Therefore, accelerate the heat dissipation during bit operation, strengthen drill bit heat transfer, quickly reduce bit matrix
Temperature is that people make great efforts always the problem captured.Diamond bit during creeping into rock stratum, carcass working lining constantly with rock,
Landwaste friction gathers a large amount of frictional heat in carcass working lining bottom, and drill bit grinding spot temperature is caused quickly to increase, excessively high
Temperature accelerates the abrasion of drill bit, even results in the generation of the drilling accidents such as the burning of bits.
Drill bit drill bit during creeping into rock stratum generates a large amount of frictional heat with carcass, since the thermal conductivity of rock is low, heat
Can be small to the transmission of rock depth, mud and drill bit high-temperature region contact area are small, and effective heat dissipation area very little, heat is in a short time
It is not easy to distribute.In this way, just having a large amount of heat accumulates in diamond drill bit matrix bottom, it is therefore, how fast and effectively right
Bit matrix radiates, and then strengthens heat dissipation, and the heel and toe wear for reducing drill bit is particularly significant.
Diamond matrix drill bit in drilling process its carcass temperature can exist a critical regulation, i.e., when bit pressure P and turn
When fast n reaches a certain value, high temperature that carcass temperature drastically rises to 600 DEG C~700 DEG C by 100 DEG C~200 DEG C.At this point, drill bit tire
The drilling regulation of body has been transferred to critical regulation by normal procedure, and different critical regulations is corresponding with for different rocks.Stratum
Be made of rock complicated and changeable, when drill bit is crept into the earth formation, needed for bit pressure and rotating speed be difficult control, therefore bore
The phenomenon that the first-born temperature steeply rises just happens occasionally, to accelerate the pump amount that bit matrix cooling required increases flushing liquor.By
Drill annular gap very little when diamond bit is crept into, and to increase the pump amount of flushing liquor, needs the pump pressure for increasing flushing liquor, but
Being pumped conference causes drill bit to lift off bottom hole, or even meeting erosion carcass and rock core, while the cooling effect of flushing liquor is also limited
, cannot the generation of the burning of bits be prevented by mud liquid pump amount is increased merely.Also, it can only be smaller due to increasing fluid-pump amount
Heat transfer coefficient is improved, and the effective heat dissipation area of drill bit is still drill bit bottom-working surface, does not increase effective heat dissipation area, and
Effective heat dissipation area is also smaller, thus drill bit is when bottom hole and mud carry out convection current heat transfer, and total heat dissipation capacity still improves less.
Due to its efficient phase-change heat transfer characteristic, the superpower capacity of heat transmission is widely used in aerospace, military project, dissipates hot pipe technique
The industries such as hot device manufacture.Heat pipe one end is close to heat source, and the other end is close to temperature lower region, by the vapour of working fluid, liquid phase
Change carries out heat transmission under smaller temperature gradient, and thermal resistance very little has high heat transfer efficiency.Manufacturing process letter simultaneously
It is list, low production cost, environmentally friendly, safe and reliable.Heat pipe axial thermal conductivity is extremely strong, applies it to diamond geological
It can improve on core bit and obtain the single radiating mode of more preferable heat dissipation effect by big pump amount flushing liquor merely, utilize heat
Manifold technology can obtain satisfied effect with smaller mud liquid pump amount.While reaching bit matrix cooling effect, reduce
The use cost and mud fluid of mud fluid discharge pollution on the environment.But current heat pipe is in geological drilling field
Application report it is less, it is a kind of disclosed in rarely seen Chinese patent ZL201510292176.3 in terms of drill bit to have diamond compound
The drill bit of piece reinforces the heat dissipation to diamond compact bit in the patent using there is core heat pipe, which still has following lack
It falls into：It is primarily due to the decision of diamond compact bit self structure, the diamond compact cutting tooth on supporter cuts bottom
The heat of generation can not be transmitted to the evaporator section of heat pipe in time, when drill bit is in limiting condition, cause heat pipe timely
Play cooling effect；The heat pipe in the patent is arranged so that heat is concentrated the screw thread end for being transmitted to matrix, drill bit by heat pipe simultaneously
It is susceptible to dropout phenomenon at work；Secondly, the gap that diamond compact bit is cut between wing is larger, and flushing liquor reaches
Flow on to cutting tooth is big, can meet the heat dissipation of itself substantially under the ringing of flushing liquor；Furthermore it is selected in patent
Have a core heat pipe, the resistance that condensate liquid is subject in reflux by wick liquid is big, and axial heat flow also can be by smaller capillary pole
The limitation of limit.
Invention content
It is an object of the invention to be directed to diamond bit in the prior art, during creeping into rock stratum, carcass working lining is not
It is disconnected to cause drill bit grinding spot temperature to increase in a large amount of frictional heat of carcass working lining bottom accumulation with rock, landwaste friction,
Excessively high temperature accelerates the abrasion of drill bit, even results in the technical problems such as the generation of the drilling accidents such as the burning of bits, provides a kind of profit
With the diamond geological core bit of heat pipe heat radiation.
A kind of diamond geological core bit using heat pipe heat radiation, it is characterized in that：Including bit matrix, steel body, the mouth of a river,
Heat pipe and heating column, the bit matrix are connect with steel body, and wherein bit matrix is made of carcass working lining and the excessive layer of carcass,
Steel body threaded hole is provided in the axial direction in the steel body；The mouth of a river is opened on bit matrix and is separated into bit matrix
Several wings, and correspond to steel body screw thread hole site on wing and offer the carcass threaded hole axially penetrated through along wing；The heat
Pipe is divided into evaporator section and condensation segment two parts, and evaporator section is mounted in carcass threaded hole, and condensation segment is mounted on steel body threaded hole
It is interior, working medium is injected in heat pipe；The heating column is threadedly coupled with heat pipe constitutes heat transfer component, and heating column is mounted on carcass spiral shell
In pit, and heating column height is equal with carcass work layer height.
Each wing is circumferentially uniformly distributed that there are three heat transfer components, and the equal length of three heat transfer components, every group symmetrical
Three heat transfer component length on wing are consistent, wherein three on adjacent blades heat transfer component Length discrepancy；
The heat transfer component is through to the inside of steel body at the top of wing.
The heat pipe is that enclosed screw thread reinforces gravity assisted heat pipe, and shape is cylinder, and material is using copper.
The heating column is graphite column, copper post or copper alloy column.
The heat transfer component of three equal lengths on same wing, the heat pipe being distributed in the heat transfer component of both sides are high warm
Pipe, it is moderate temperature heat pipe to be located at the heat pipe in intermediate heat transfer component.
The one kind of the working medium injected inside the high-temperature heat pipe in liquid metal sodium or liquid metal potassium.
The working medium injected inside the moderate temperature heat pipe is water.
Compared with prior art, the advantageous effect that the present invention is brought is：
1, the diamond geological core bit of heat pipe heat radiation proposed by the present invention, the carcass working lining bottom tool of bit matrix
There is dual cooling function, first, cooling down using the mouth of a river, mud fluid reaches bit bottom lip surface by the mouth of a river and directly cool down
Cooling, second is that being cooled down using the heat transfer component formed by heat pipe and heating column, the localized hyperthermia of bit bottom lip surface passes through biography
Thermal part is transmitted to steel body, and the mud fluid that the heat in steel body is recycled again is taken away, the big temperature drop of heat dissipation area of steel body
Low fast, heat transfer component recycles between bit matrix and steel body repeatedly carries out hot transmission, to accelerate bit matrix bottom
Cooling, to sum up heat pipe phase-change heat transfer technology there is good heat transfer efficiency, being used in combination with mud fluid can play pair
The effect of weight radiating and cooling, accelerates the cooling of diamond drill bit matrix bottom, prevents the generation of the drilling accidents such as the burning of bits.
2, the price of heat pipe is cheap with respect to mud fluid, and the use of heat pipe reduces the dosage of mud fluid, to
Reduce the manufacturing cost of enterprise product, while heat pipe is more more environmentally friendly than mud fluid.
Description of the drawings
Below with reference to drawings and examples, technical scheme of the present invention is described in further detail.
Fig. 1 is a kind of diamond geological core bit dimensional structure diagram using heat pipe heat radiation of the invention.
Fig. 2 is heat pipe overall distribution figure in the present invention.
Fig. 3 is sectional view of the heat pipe on different wings in the present invention.
Fig. 4 is sectional view of the heat pipe on same wing in the present invention.
Fig. 5 is the principle of the present invention structural schematic diagram.
In figure：1- bit matrixes, 11- carcasses working lining, the excessive layer of 12- carcasses, 2- steel bodies, the mouths of a river 3-, 4- heat pipes, 41-
Evaporator section, 42- condensation segments, 5- heating columns.
Specific implementation mode
In order to avoid obscuring the essence of the present invention, well known method, process and flow are not described in detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the present invention proposes a kind of to be taken using the diamond geological of heat pipe heat radiation
Heart drill bit, including bit matrix 1, steel body 2, the mouth of a river 3, heat pipe 4 and heating column 5, the bit matrix 1 pass through agglomeration and steel
Body 2 connects, and wherein bit matrix 1 is made of carcass working lining 11 and the excessive layer of carcass 12, is opened up in an axial direction in the steel body 2
There is steel body threaded hole；The mouth of a river 3 is opened on bit matrix 1 and bit matrix 1 is separated into several wings, and on wing
Corresponding steel body screw thread hole site offers the carcass threaded hole axially penetrated through along wing；The heat pipe 4 divides for evaporator section 41 and cold
42 two parts of solidifying section, and evaporator section 41 is mounted in carcass threaded hole, condensation segment 42 is mounted in steel body threaded hole, in heat pipe 4
Inside it is injected with working medium；The heating column 5 is threadedly coupled with heat pipe 4 constitutes heat transfer component, and heating column 5 is mounted on carcass threaded hole
It is interior, and 5 height of heating column is identical as 11 height of carcass working lining.
Further, there is dual drop using its 11 bottom of carcass working lining of the diamond geological core bit of heat pipe heat radiation
Temperature function, first, being cooled down using the mouth of a river 3, mud fluid reaches bit bottom lip surface by the mouth of a river 3 and is directly cooled, and two
It is to be cooled down using the heat transfer component formed by heat pipe 4 and heating column 5, the localized hyperthermia of bit bottom lip surface passes through heat transfer component
It is transmitted to steel body 2, the mud fluid that the heat in steel body 2 is recycled again is taken away, and the big temperature of heat dissipation area of steel body 2 reduces
Soon, heat transfer component recycles between bit matrix 1 and steel body 2 repeatedly carries out hot transmission, to accelerate 1 bottom of bit matrix
Cooling.Specific heat transfer theory is that the evaporation ends of heat pipe 4 and 5 end thereof contacts of heating column, the condensation end of heat pipe 4 are contacted with steel body 2,
The heat generated on bit bottom lip surface accelerates the evaporation ends for being transmitted to heat pipe 4, the working solution of evaporation ends under the action of heating column 5
Body is taken away heat by thermal evaporation, and steam flows to the condensation end of heat pipe 4 from central passage, condenses into liquid, while being discharged latent
Heat, liquid flow back into evaporation ends under the effect of gravity, recycle repeatedly in this way, the heat that bit bottom lip surface and rock frictional test are generated
Amount, is transmitted in steel body 2 through heat pipe 4, thus greatly reduces 11 temperature Centralized of carcass working lining of diamond bit.
Further, each wing is circumferentially uniformly distributed there are three heat transfer component, the equal length of three heat transfer components, often
Three heat transfer component length on the symmetrical wing of group are consistent, wherein three on adjacent blades heat transfer component Length discrepancy, from
And realize that heat pipe 4 is different in size in heat transfer component, make the uniform pickup heat radially of entire steel body 2.
The heat transfer component formed by heat pipe 4 and heating column 5 is through to the inside of steel body 2 at the top of wing, it is often the case that
Heat pipe 4 is different according to application, is divided into Cryo Heat Tube (- 270 DEG C~0 DEG C), room temperature heat pipe (0 DEG C~200 DEG C), moderate temperature heat pipe (200
DEG C~600 DEG C) and high-temperature heat pipe (600 DEG C or more), the liquid refrigerant of its filling of the heat pipe 4 of different temperatures is different, common at present
Working medium have water, ammonia, alcohol, acetone, nitrogen, helium, liquid metal etc..Heat pipe 4 is heated initial stage in evaporator section 41, is not in lead
Thermal phenomenon, only when the liquid refrigerant of heat pipe 4 reaches boiling point, heat pipe 4 just can be abruptly to 42 heat conduction of condensation segment, the present invention
In heat pipe 4 be that enclosed screw thread reinforces gravity assisted heat pipe, shape is cylinder, and material is three long on same wing using copper
Equal heat transfer component is spent, the heat pipe being distributed in the heat transfer component of both sides is high-temperature heat pipe, is located in intermediate heat transfer component
Heat pipe be moderate temperature heat pipe, the working medium injected inside preferred high-temperature heat pipe in the present invention is selected from liquid metal sodium or liquid metal
One kind in potassium, the working medium that the moderate temperature heat pipe inside is injected is water, and the high-temperature heat pipe is drastically increased in 1 temperature of bit matrix
Operating mode under work, moderate temperature heat pipe works in the normal drilling process of drill bit.
The heating column 5 is that graphite column, copper post or copper alloy column can be by bit bottom lip surfaces with good thermal conductivity
The heat acceleration of generation is transmitted to heat pipe 4, while heat pipe 4 being protected not to be worn in drilling process.
A kind of diamond geological core bit using heat pipe heat radiation proposed by the present invention, preparation process is simple, using normal
The mode of rule can be obtained, and two kinds of preparation methods of generally use are as follows：
First way is to prepare the diamond geological core bit of the heat pipe heat radiation, first has to carry out mold design,
Mold materials often select high purity graphite, and in the design process of mold, drill bit internal diameter, mouth of a river block, threaded post are determined with core model
Body is used for reserving the mouth of a river 3 and place the threaded hole of heat pipe 4 and heating column 5, and it is various simple that bottom spacer makes bit bottom lip surface present
Shape, core model, mouth of a river block, threaded cylindrical and bottom spacer described above are disposable expendable part, and finally charging is carried out with steel body
One sintering.Steel body 2 processes steel body threaded hole corresponding with carcass threaded hole in advance before sintering, and it is one to make the two connection
Core model, mouth of a river block, threaded cylindrical, bottom spacer destruction are taken out after moving back mould, heat pipe 4 and heating column 5 are mounted on entire screw thread by body
In hole；
The second way is to prepare the diamond geological core bit of heat pipe heat radiation sintered bit in a mold first
Carcass block, that is, wing, is cooled to room temperature after the completion of sintering in thermal insulation material, carcass threaded hole is then processed on carcass block, together
When also process steel body threaded hole in steel body, the position of steel body upper screwed hole by carcass threaded hole on carcass block location determination,
Carcass block and steel body are subjected to secondary welding-on after processing is completed, when welding-on to make carcass threaded hole on carcass block in steel body
Steel body threaded hole is corresponding, and heating column 5 and heat pipe 4 are entirely finally being installed along the threaded hole of drill bit axial direction.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, it should all belong to the scope of the claims of the present invention.
Claims (1)
1. a kind of diamond geological core bit using heat pipe heat radiation, it is characterized in that：Including bit matrix (1), steel body (2),
The mouth of a river (3), heat pipe (4) and heating column (5), the bit matrix (1) connect with steel body (2), and wherein bit matrix (1) is by carcass
Working lining (11) and the excessive layer of carcass (12) composition, steel body threaded hole is provided in the axial direction in the steel body (2)；The mouth of a river
(3) it is opened on bit matrix (1) and bit matrix (1) is separated into several wings, and correspond to steel body threaded hole on wing
Position offers the carcass threaded hole axially penetrated through along wing；The heat pipe (4) is divided into evaporator section (41) and condensation segment (42) two
Part, and evaporator section (41) is mounted in carcass threaded hole, condensation segment (42) is mounted in steel body threaded hole, in heat pipe (4)
It is injected with working medium；The heating column (5) is threadedly coupled with heat pipe (4) constitutes heat transfer component, and heating column (5) is mounted on carcass screw thread
In hole, and heating column (5) is highly equal with carcass working lining (11) height；
Each wing is circumferentially uniformly distributed that there are three heat transfer component, the equal length of three heat transfer components, every group of symmetrical wings
On three heat transfer component length be consistent, wherein three on adjacent blades heat transfer component Length discrepancy；
The heat transfer component is through to the inside of steel body (2) at the top of wing；
The heat pipe (4) is that enclosed screw thread reinforces gravity assisted heat pipe, and shape is cylinder, and material is using copper；
The heating column (5) is graphite column, copper post or copper alloy column；
The heat transfer component of three equal lengths on same wing, the heat pipe being distributed in the heat transfer component of both sides are high-temperature heat pipe,
Heat pipe in intermediate heat transfer component is moderate temperature heat pipe；
The one kind of the working medium injected inside the high-temperature heat pipe in liquid metal sodium or liquid metal potassium；
The working medium injected inside the moderate temperature heat pipe is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493877.2A CN107120067B (en) | 2017-06-26 | 2017-06-26 | A kind of diamond geological core bit using heat pipe heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493877.2A CN107120067B (en) | 2017-06-26 | 2017-06-26 | A kind of diamond geological core bit using heat pipe heat radiation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107120067A CN107120067A (en) | 2017-09-01 |
| CN107120067B true CN107120067B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493877.2A Active CN107120067B (en) | 2017-06-26 | 2017-06-26 | A kind of diamond geological core bit using heat pipe heat radiation |
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| Country | Link |
|---|---|
| CN (1) | CN107120067B (en) |
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| CN108166934B (en) * | 2017-12-06 | 2024-06-11 | 庆阳石大钻头制造有限责任公司 | Diamond drill bit convenient for heat dissipation and maintenance and heat dissipation maintenance method thereof |
| CN109623675B (en) * | 2018-12-18 | 2020-12-22 | 南京航空航天大学 | Combined axial rotation pulsating heat pipe grinding wheel and preparation method thereof |
| CN112065285A (en) * | 2020-08-13 | 2020-12-11 | 祁东县锋速钻探工具有限公司 | Anti-bending diamond compact bit with concave-convex lip surface |
| CN113585997B (en) * | 2021-07-17 | 2024-06-25 | 巩建雨 | Controllable local hot-melt drill bit for drilling core by dry and wet drilling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8024936B2 (en) * | 2004-11-16 | 2011-09-27 | Halliburton Energy Services, Inc. | Cooling apparatus, systems, and methods |
| US7806173B2 (en) * | 2007-06-21 | 2010-10-05 | Schlumberger Technology Corporation | Apparatus and methods to dissipate heat in a downhole tool |
| CN201083124Y (en) * | 2007-07-19 | 2008-07-09 | 鞍山中新盛达软件开发有限公司 | Mine roller drill high protection type alternating current digitization transmission system |
| CN102661876A (en) * | 2012-04-16 | 2012-09-12 | 中山大学 | Novel inner-cooling soft rock core drill |
| US20140208790A1 (en) * | 2013-01-29 | 2014-07-31 | Baker Hughes Incorporated | Compact dessicant and zeolite bodies for use in a downhole sorption cooling system |
| CN204646118U (en) * | 2015-05-29 | 2015-09-16 | 杭州富阳新锐生物科技有限公司 | A kind of drill bit of expiloration of coal mines |
| CN104929527B (en) * | 2015-05-29 | 2017-05-31 | 胜利油田盛辉石油技术开发有限责任公司 | A kind of drill bit with diamond compact |
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