CN109915038A - Drill rod with heat preservation function and spraying device and spraying method thereof - Google Patents
Drill rod with heat preservation function and spraying device and spraying method thereof Download PDFInfo
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- CN109915038A CN109915038A CN201910257687.XA CN201910257687A CN109915038A CN 109915038 A CN109915038 A CN 109915038A CN 201910257687 A CN201910257687 A CN 201910257687A CN 109915038 A CN109915038 A CN 109915038A
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- drilling rod
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- transmission line
- heat insulation
- rotating mechanism
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- 238000005507 spraying Methods 0.000 title claims abstract description 56
- 238000004321 preservation Methods 0.000 title abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 90
- 239000010410 layer Substances 0.000 claims abstract description 45
- 239000011241 protective layer Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 44
- 230000005540 biological transmission Effects 0.000 claims description 40
- 239000007921 spray Substances 0.000 claims description 30
- 230000037452 priming Effects 0.000 claims description 26
- 239000003973 paint Substances 0.000 claims description 13
- 239000012774 insulation material Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000000020 Nitrocellulose Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 235000010985 glycerol esters of wood rosin Nutrition 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000011325 microbead Substances 0.000 claims description 3
- 229920001220 nitrocellulos Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 244000273618 Sphenoclea zeylanica Species 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 claims 1
- -1 phenol Aldehyde Chemical class 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 25
- 239000012530 fluid Substances 0.000 abstract description 7
- 239000000654 additive Substances 0.000 abstract description 5
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
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- 229920000180 alkyd Polymers 0.000 description 1
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- 238000005452 bending Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a drill rod with a heat preservation function, a spraying device and a spraying method thereof, wherein the drill rod comprises a hollow rod body, a bottom coating, a heat preservation layer and a protective layer; the bottom coating is uniformly coated on the inner wall of the hollow rod body; the heat-insulating layer is uniformly coated on the bottom coating and consists of resin, heat-insulating materials and additives; the inoxidizing coating is located at the border at heat preservation both ends, and the inoxidizing coating is connected heat preservation and cavity body of rod inner wall, and the thickness of inoxidizing coating reduces from heat preservation to cavity body of rod inner wall gradually. By coating the heat-insulating coating in the drilling rod, the heat-insulating effect on the drilling fluid is improved, and meanwhile, the spraying device and the spraying method for the heat-insulating coating on the inner wall of the drilling rod are high in efficiency and good in processing quality.
Description
Technical field
The present invention relates to drilling technology field, more particularly to a kind of drilling rod and its spraying with heat insulation function
Device and spraying method.
Background technique
Drilling rod is a kind of screwed steel pipe in tail portion, is set for connecting drilling machine landscape apparatus and boring mill positioned at drilling well bottom end
Standby or bottom outlet device.The purposes of drilling rod is drilling mud to be transported to drill bit, and bottom outlet is improved, reduced or rotated together with drill bit
Device.Drilling rod allows for bearing huge interior external pressure, distortion, bending and vibration.In the exploitation and extractive process of oil gas, bore
Bar can be used for multiple times.Drilling rod is one of necessary component of drilling well, and the demand of drilling rod increases with the increase of drilling depth.It bores
The basic role of bar includes: to remove drill bit, apply bit pressure, transmitting power, conveying drilling fluid and carry out special operation: water squeezing
Mud, processing down-hole accident etc..General run of steel is 9 meters or so, and material is steel, hollow cylindrical, wall thickness 9-11mm, outside
There are many diameters, and there are commonly 88.9,114.3,127mm specifications.
But the surface of existing drilling rod is only spray painting processing, be for antirust, however can not be for the brill inside drilling rod
Well liquid plays heat insulation effect, since the temperature of drilling fluid is affected by the external world, is also just difficult to ensure the stability of drilling well work.
Therefore, how a kind of drilling rod with heat insulation function and its spray equipment and spraying method are provided, is this field skill
The problem of art personnel's urgent need to resolve.
Summary of the invention
In view of this, leading to the present invention provides a kind of drilling rod with heat insulation function and its spray equipment and spraying method
It crosses and coats thermal insulation coatings in drilling well drilling bar, improve the heat insulation effect to drilling fluid, meanwhile, it provides with high-efficient, processing
The spray equipment and spraying method of high-quality drilling rod inner wall thermal insulation coatings.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of drilling rod with heat insulation function, including hollow lever, priming coat, insulating layer and protective layer；
The priming coat is coated uniformly on the drilling rod inner wall；
The insulating layer is coated uniformly on the priming coat, and the insulating layer is by resin, thermal insulation material and additive group
At；
The protective layer is coated in the position at the insulating layer both ends, and protective layer coating connect the insulating layer and
The thickness of the hollow lever inner wall, the protective layer is gradually reduced from the insulating layer to the hollow lever inner wall.
Through the above technical solutions, the present invention coats thermal insulation coatings in drilling well drilling bar, heat preservation is improved by priming coat and is applied
The adhesive force of material carries out crack resistence protection by edge placement of the protective layer to thermal insulation coatings, had both played excellent drilling fluid and protected
Temp effect, while ensure that the structural stability after thermal insulation coatings spraying, long service life, using effect are good.
Preferably, in a kind of above-mentioned drilling rod with heat insulation function, the priming coat be phenolic primer, ester gum priming paint,
Nitrocellulose primer or alcohol acid primer.The strong adhesive force to metal material can be played, and improves the adhesion effect with insulating layer.
Preferably, in a kind of above-mentioned drilling rod with heat insulation function, the resin is organic siliconresin or epoxy resin.
It is mixed with thermal insulation material, not only plays heat insulation effect, but also play the protection effect to paint layer.
Preferably, in a kind of above-mentioned drilling rod with heat insulation function, the thermal insulation material is hollow ceramic microballon, hollow
One of glass microballoon, flake asbestos, mica powder and fumed silica or a variety of combinations.Above-mentioned material is to have heat preservation
The added material of effect after mixing with resin, can greatly improve the heat insulation effect of insulating layer, and thermal coefficient is lower than 0.1W/
(m·K)。
Preferably, in a kind of above-mentioned drilling rod with heat insulation function, the protective layer is organosilicon heat-resistant lacquer.It can
Good crack resistence effect is enough played, while being capable of protective paint layer, high temperature resistant.Meanwhile each coating of the invention is resistant to
300 DEG C of high temperature, uses for a long time, will not blister, aliquation, fall off.
Preferably, in a kind of above-mentioned drilling rod with heat insulation function, one end circumferential direction of the drilling-rod external wall is welded
There is wear ring.Avoid the abrasion in rotation process to screw thread.
The present invention also provides it is a kind of for process with heat insulation function drilling rod spray equipment, including transmission line body,
Skid, oven and sprayer；
The transmission line body is the two-row structure being set side by side, and is linearly run；
The skid includes fixing seat, connecting rod and rotating mechanism；The fixing seat is two, and is separately fixed at two rows
On the transmission line body；Multiple connecting rod both ends are separately connected two fixing seats；The rotating mechanism is connected to
The top of the fixing seat, the both ends of the hollow lever are placed on the rotating mechanism, and the rotating mechanism is for driving
The hollow lever rotation；
The oven is wrapped in the outside in the transmission line body center, and offered on the oven for the skid into
Opening out；
The sprayer, which is located at the transmission line body side, and it sprays end can protrude into hollow lever internal spray bottom
Coating and insulating layer.
Through the above technical solutions, spray equipment provided by the invention, carries out priming coat to pipeline inside using sprayer
Its levelling during rotation is made by the driving of rotating mechanism with the spraying of insulating layer, and is entered during rotation roasting
Case baking, levelling and good drying effect, improve the structural stability of paint layer, and transmission line body can move back and forth, each
After secondary lower part can piece uploading, of simple structure and strong practicability.
Preferably, in above-mentioned a kind of for processing in the spray equipment of the drilling rod with heat insulation function, the rotating mechanism
Including rubber roller, motor and transmission belt；The rubber roller be it is multiple, multiple rubber rollers are rotatably connected on the top of the fixing seat,
And circular arc to bottom notch is formed, the circular arc is identical as the radian of the hollow lever outer wall；The motor is fixed on institute
State the bottom of fixing seat；Multiple transmission belts are respectively sleeved at the rotation axis of the corresponding rubber roller and the output shaft of the motor
On.Drilling rod can be driven to rotate by the frictional force of rubber roller and drilling rod, structure is simple, and using effect is good.
The present invention also provides a kind of spraying methods of spray equipment, specifically includes the following steps:
S1, transmission line body stop, and hollow lever both ends are placed on rotating mechanism, and the spraying end of sprayer enters hollow
Body of rod inner-wall spraying prime coat, after the completion of prime coat spraying, rotating mechanism drives drilling rod to rotate, and levelling 8-15 minutes；
After the completion of S2, levelling, rotating mechanism stops, and the spraying end of sprayer is again introduced into drilling rod inner-wall spraying insulating layer；
After the completion of S3, insulating layer spraying, protective layer is sprayed at hollow lever both ends using spray gun, protective layer spraying is completed
Afterwards, rotating mechanism drives hollow lever rotation, while transmission line body is run, and skid is driven to enter oven cooking cycle, into after oven,
Transmission line body stops；
After the completion of S4, baking, transmission line body is continued to run, and skid is transported oven, and unload drilling rod.
Through the above technical solutions, the present invention carries out the spraying of priming coat and insulating layer using pipe inner-wall spraying device, and
Levelling is rotated after each spraying, levelling effect is good, stable structure；During the drying process, drilling rod rotation, drying effect are still maintained
Fruit is good, anti-fluid stopping paint or empty spray, leads to that spraying effect is bad and structural stability is poor, and artificial hand sprays protective layer, operation letter
It is single, raw material are saved, overall step smoothness is stablized, and can reach excellent heat insulation effect, and structural stability is strong.
Preferably, in a kind of above-mentioned spraying method of the drilling rod with heat insulation function, in S3, the baking temperature of oven
It is 75-95 DEG C；Drilling rod baking time is 30-50min.Under the above parameters, it can guarantee that the hardness of paint layer is up to standard, stable structure
Property is stronger.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides one kind to have heat preservation function
The drilling rod and its spray equipment and spraying method of energy, have the advantages that
1, the drilling rod provided by the invention with heat insulation function, thermal insulation coatings are coated in drilling rod, are improved by priming coat
The adhesive force of thermal insulation coatings carries out crack resistence protection by edge placement of the protective layer to thermal insulation coatings, had both played excellent brill
Well liquid heat insulation effect, while ensure that the structural stability after thermal insulation coatings spraying, long service life, using effect are good.
2, drilling-rod external wall welds wear ring, avoids the abrasion in rotation process to screw thread.
3, there is the spray equipment of the drilling rod of heat insulation function provided by the present invention for processing, using sprayer in pipeline
The spraying that portion carries out priming coat and insulating layer makes its levelling during rotation, and rotating by the driving of rotating mechanism
Enter oven cooking cycle, levelling and good drying effect in the process, improves the structural stability of paint layer, and transmission line body can be past
Multiple movement, each time after lower part can piece uploading, of simple structure and strong practicability.
4, the spraying method of the drilling rod provided by the invention with heat insulation function carries out primary coat using pipe inner-wall spraying device
The spraying of layer and insulating layer, and levelling is rotated after each spraying, levelling effect is good, stable structure；During the drying process, still
Drilling rod rotation, good drying effect, anti-fluid stopping paint or empty spray are kept, leads to that spraying effect is bad and structural stability is poor, manually
Hand sprays protective layer, easy to operate, saves raw material, and overall step smoothness is stablized, and can reach excellent heat insulation effect, and structure
Stability is strong.
Detailed description of the invention
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 technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram outside drilling rod provided by the invention；
Fig. 2 is the cross-sectional view of paint layer inside drilling rod provided by the invention；
Fig. 3 is the structural schematic diagram of the wear ring of drilling rod junctions provided by the invention；
Fig. 4 is the structural schematic diagram of spray equipment provided by the invention；
Fig. 5 is the structural schematic diagram that pipe inner-wall spraying device provided by the invention enters drilling rod；
Fig. 6 is the structural schematic diagram of rotating mechanism provided by the invention.
Wherein:
1- drilling rod；
2- priming coat；
3- insulating layer；
4- protective layer；
5- wear ring；
6- transmission line body；
7- skid；
71- fixing seat；
72- connecting rod；
73- rotating mechanism；
731- rubber roller；
732- motor；
733- transmission belt；
8- oven；
81- opening；
9- inner wall of the pipe disk sprayer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
Referring to attached drawing 1 to attached drawing 3, present embodiment discloses a kind of drilling rod with heat insulation function, including hollow lever 1,
Priming coat 2, insulating layer 3 and protective layer 4；
Priming coat 2 is coated uniformly on 1 inner wall of drilling rod；
Insulating layer 3 is coated uniformly on priming coat 2, and insulating layer 3 is made of resin, thermal insulation material and additive；
Protective layer 4 is coated in the position at 3 both ends of insulating layer, and in the coating of protective layer 4 connection insulating layer 3 and hollow lever 1
The thickness of wall, protective layer 4 is gradually reduced from insulating layer 3 to 1 inner wall of hollow lever.
It should be noted that the percentage of resin, thermal insulation material and additive are as follows: 60%:15%:25%, wherein adding
Agent includes curing agent and diluent, and curing agent accounts for the 5% of additive toatl proportion.
The spraying film thickness of priming coat is at 8-15 μm, and the spraying film thickness of insulating layer is differed at 10-50 μm, and film thickness is thicker, heat preservation
Effect is better.
In order to further optimize the above technical scheme, priming coat 2 is phenolic primer, ester gum priming paint, nitrocellulose primer or alkyd
Priming paint.
In order to further optimize the above technical scheme, resin is organic siliconresin or epoxy resin.
In order to further optimize the above technical scheme, thermal insulation material is hollow ceramic microballon, hollow glass microbead, asbestos
One of powder, mica powder and fumed silica or a variety of combinations.
In order to further optimize the above technical scheme, protective layer 4 is organosilicon heat-resistant lacquer.
In order to further optimize the above technical scheme, one end circumferential direction of 1 outer wall of drilling rod is welded with wear ring 5.
Embodiment 2:
Referring to attached drawing 1 to attached drawing 6, a kind of spraying dress for processing the drilling rod with heat insulation function is present embodiments provided
It sets, including transmission line body 6, skid 7, oven 8 and sprayer 9；
Transmission line body 6 is the two-row structure being set side by side, and is linearly run；
Skid 7 includes fixing seat 71, connecting rod 72 and rotating mechanism 73；Fixing seat 71 is two, and is separately fixed at two
It arranges on transmission line body 6；Multiple 72 both ends of connecting rod are separately connected two fixing seats 71；Rotating mechanism 73 is connected to fixing seat 71
Top, the both ends of hollow lever 1 are placed on rotating mechanism 73, and rotating mechanism 73 is for driving hollow lever 1 to rotate；
Oven 8 is wrapped in the outside in 6 center of transmission line body, and the opening passed in and out for skid 7 is offered on oven 8；
Sprayer 9 be located at 6 side of transmission line body and its spray end can protrude into the 1 internal spray priming coat of hollow lever and
Insulating layer.
In order to further optimize the above technical scheme, rotating mechanism 73 includes rubber roller 731, motor 732 and transmission belt 733；
Rubber roller 731 be it is multiple, multiple rubber rollers 731 are rotatably connected on the top of fixing seat 71, and form the circular arc to bottom notch, circular arc
It is identical as the radian of 1 outer wall of hollow lever；Motor 732 is fixed on the bottom of fixing seat 71；Multiple transmission belts 733 are respectively sleeved at
On the output shaft of the corresponding rotation axis of rubber roller 731 and motor 732.
The working principle of the present embodiment are as follows:
1 both ends of drilling rod are placed on rubber roller 731, sprayer 9 enters 1 inner-wall spraying priming coat 2 of drilling rod and insulating layer 3.
When the drilling rod 1 sprayed is in 8 outside levelling of oven, and toasts inside oven 8, it is required to allow 1 turn of drilling rod
It is dynamic, at this point, motor 732 starts, drive multiple rubber rollers 731 to rotate together by transmission belt 733, rubber roller 731 passes through frictional force band
Dynamic drilling rod 1 rotates.
Drilling rod is unloaded after completing spraying and baking when a drilling rod 1 is run from one end of transmission line body 6 to the other end
1, meanwhile, then a drilling rod 1 is put, reverse direction operation can re-start spraying and baking.
It should be noted that transmission line body 6 provided by the invention is conventional chain conveying line body, it certainly also include driving
The structures such as motor are not emphasis of the invention, and details are not described herein.
Sprayer 9 provided by the invention is also conventional sprayer, also switched certainly including coating pressurization host, coating,
Gas source and pipeline are not emphasis of the invention, and details are not described herein.
Embodiment 3:
The spraying method for present embodiments providing a kind of drilling rod with heat insulation function based on embodiment 2, specifically includes
Following steps:
S1, transmission line body 6 stop, and 1 both ends of hollow lever are placed on rotating mechanism 73, pipe inner-wall spraying device 9
Spraying end enters 1 inner-wall spraying prime coat 2 of hollow lever, and after the completion of prime coat 2 sprays, rotating mechanism 73 drives drilling rod 1 to rotate,
Levelling 8-15 minutes；
After the completion of S2, levelling, rotating mechanism 73 stops, and the spraying end of sprayer 9 is again introduced into 1 inner-wall spraying of drilling rod guarantor
Warm layer 3；
After the completion of S3, insulating layer 3 spray, protective layer 4 is sprayed at 1 both ends of hollow lever using spray gun, protective layer 4 has sprayed
Cheng Hou, rotating mechanism 73 drive hollow lever 1 to rotate, while transmission line body 6 is run, and drive skid 7 to enter oven 8 and toast, into
After entering oven 8, transmission line body 6 stops；
After the completion of S4, baking, transmission line body 6 is continued to run, and skid 7 is transported oven 8, and unload drilling rod 1.
In order to advanced optimize above-mentioned technical characteristic, in S3, the baking temperature of oven 8 is 75-95 DEG C；Drilling rod 1 toasts
Time is 30-50min.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of drilling rod with heat insulation function, which is characterized in that including hollow lever (1), priming coat (2), insulating layer (3) and
Protective layer (4)；
The priming coat (2) is coated uniformly on the drilling rod (1) inner wall；
The insulating layer (3) is coated uniformly on the priming coat (2), and the insulating layer (3) is by resin, thermal insulation material and addition
Agent composition；
The protective layer (4) is coated in the position at the insulating layer (3) both ends, and the protective layer (4) coating connects the guarantor
Warm layer (3) and the hollow lever (1) inner wall, the thickness of the protective layer (4) is from the insulating layer (3) to the hollow lever
(1) inner wall is gradually reduced.
2. a kind of drilling rod with heat insulation function according to claim 1, which is characterized in that the priming coat (2) is phenol
Aldehyde priming paint, ester gum priming paint, nitrocellulose primer or alcohol acid primer.
3. a kind of drilling rod with heat insulation function according to claim 1, which is characterized in that the resin is organosilicon tree
Rouge or epoxy resin.
4. a kind of drilling rod with heat insulation function according to claim 1, which is characterized in that the thermal insulation material is hollow
One of ceramic microbead, hollow glass microbead, flake asbestos, mica powder and fumed silica or a variety of combinations.
5. a kind of drilling rod with heat insulation function according to claim 1, which is characterized in that the protective layer (4) is to have
Machine silicon heat resistance paint.
6. a kind of drilling rod with heat insulation function according to claim 1, which is characterized in that drilling rod (1) outer wall
One end circumferential direction is welded with wear ring (5).
7. a kind of for processing the spray equipment of the drilling rod as claimed in any one of claims 1 to 6 with heat insulation function, feature
It is, including transmission line body (6), skid (7), oven (8) and sprayer (9)；
The transmission line body (6) is the two-row structure being set side by side, and is linearly run；
The skid (7) includes fixing seat (71), connecting rod (72) and rotating mechanism (73)；The fixing seat (71) is two,
And it is separately fixed on two rows of transmission line bodies (6)；The connecting rod (72) is multiple, multiple connecting rod (72) both ends
It is separately connected two fixing seats (71)；The rotating mechanism (73) is connected to the top of the fixing seat (71), described
The both ends of hollow lever (1) are placed on the rotating mechanism (73), and the rotating mechanism (73) is for driving the hollow stem
Body (1) rotation；
The oven (8) is wrapped in the outside in the transmission line body (6) center, and is offered on the oven (8) for described
The opening of skid (7) disengaging；
The sprayer (9), which is located at the transmission line body (6) side, and it sprays end can protrude into spray inside the hollow lever (1)
Base coat and insulating layer.
8. according to claim 7 a kind of for processing the spray equipment of the drilling rod with heat insulation function, which is characterized in that
The rotating mechanism (73) includes rubber roller (731), motor (732) and transmission belt (733)；The rubber roller (731) be it is multiple, it is multiple
The rubber roller (731) is rotatably connected on the top of the fixing seat (71), and forms the circular arc to bottom notch, the circular arc with
The radian of hollow lever (1) outer wall is identical；The motor (732) is fixed on the bottom of the fixing seat (71)；The biography
Dynamic band (733) be it is multiple, multiple transmission belts (733) are respectively sleeved at the rotation axis of the corresponding rubber roller (731) and described
On the output shaft of motor (732).
9. a kind of spraying method according to the spray equipment of claim 7 or 8, which is characterized in that specifically includes the following steps:
S1, transmission line body (6) stop, and hollow lever (1) both ends are placed on rotating mechanism (73), the spraying of sprayer (9)
End enters hollow lever (1) inner-wall spraying prime coat (2), and after the completion of prime coat (2) spraying, rotating mechanism (73) drives drilling rod
(1) it rotates, levelling 8-15 minutes；
After the completion of S2, levelling, rotating mechanism (73) stops, and the spraying end of sprayer (9) is again introduced into drilling rod (1) inner-wall spraying guarantor
Warm layer (3)；
After the completion of S3, insulating layer (3) spraying, protective layer (4) are sprayed at hollow lever (1) both ends using spray gun, protective layer (4) spray
After the completion of painting, rotating mechanism (73) drives hollow lever (1) rotation, while transmission line body (6) is run, and skid (7) is driven to enter
Oven (8) baking, into after oven (8), transmission line body (6) stops；
After the completion of S4, baking, transmission line body (6) is continued to run, and skid (7) is transported oven (8), and unload drilling rod (1).
10. a kind of spraying method of drilling rod with heat insulation function according to claim 9, which is characterized in that in S3,
The baking temperature of oven (8) is 75-95 DEG C；Drilling rod (1) baking time is 30-50min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257687.XA CN109915038A (en) | 2019-04-01 | 2019-04-01 | Drill rod with heat preservation function and spraying device and spraying method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257687.XA CN109915038A (en) | 2019-04-01 | 2019-04-01 | Drill rod with heat preservation function and spraying device and spraying method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915038A true CN109915038A (en) | 2019-06-21 |
Family
ID=66968046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910257687.XA Pending CN109915038A (en) | 2019-04-01 | 2019-04-01 | Drill rod with heat preservation function and spraying device and spraying method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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