CN113108137A

CN113108137A - Tubing with ultrahigh molecular polyethylene fiber lining pipe and production method thereof

Info

Publication number: CN113108137A
Application number: CN202110397717.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Qianxilong Special Fiber Co ltd
Current assignee: Zhejiang Qianxilong Special Fiber Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-07-13

Abstract

The invention relates to an ultrahigh molecular polyethylene lining pipe oil pipe, which comprises an oil pipe and is characterized in that: the inner pipe is fixedly arranged in the oil pipe, and two end faces of the inner pipe extend outwards and wrap the end face of the oil pipe; the inner pipe is made of an ultrahigh molecular polyethylene composite material or a thermoplastic high-density polyethylene composite material, and the thickness of the inner pipe is 4-6 mm; and the mounting seat for the overhead oil pipe is detachably mounted outside the oil pipe. The invention has strong practicability and is easy to popularize.

Description

Tubing with ultrahigh molecular polyethylene fiber lining pipe and production method thereof

Technical Field

The invention relates to the technical field of oilfield exploitation equipment, in particular to an ultrahigh molecular polyethylene fiber inner lining pipe oil pipe and a production method thereof.

Background

At present, oil pipes used in oil fields are all made of steel materials, have high strength and hardness, and play a great role in the production process of the oil fields. With the diversification of oil field displacement modes and the increase of the number of directional inclined wells, the problems of eccentric wear, scaling and corrosion of rods and pipes are more prominent. According to statistics, the number of pump wells for detecting eccentric wear, scaling and corrosion of the rod and the pipe accounts for about (3) 0% of the total number of oil well operations of the oil field. With the continuous expansion of the scale of tertiary oil recovery, the following problems are brought to mechanical oil recovery: the concentration of produced liquid is gradually increased, the water drive is totally increased, the descending resistance of the sucker rod string is large, the eccentric wear proportion of the rod pipe is high, the pump detection rate is increased, the pump detection period is shortened, and the production and maintenance cost is high; the shaft is waxed, so that the load of the rod column is increased, the operation life of the production string is influenced, and meanwhile, the energy consumption is increased; the ternary composite displacement machine has the disadvantages of serious well scaling blockage, relatively short pump detection period, high scale prevention cost depending on chemical cleaning and immature physical scale prevention technology.

In order to solve the problem, a mode of additionally arranging a lining pipe on an oil pipe is generally adopted; currently, glass-lined tubes are commonly used on the market; after the glass lining pipe is used, the mode of adopting the glass lining pipe on the market at the present stage has the problems of fragility, and the lining pipe has the problems of fragility and low structural strength in the using process, so the technology needs to be modified.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an oil pipe with an ultrahigh molecular polyethylene fiber lining pipe and a production method thereof, which are used for solving the problems in the background art.

The technical scheme of the invention is realized as follows: the utility model provides a lining pipe oil pipe of ultra high molecular polyethylene fiber preparation, includes oil pipe, its characterized in that: the inner pipe is fixedly arranged in the oil pipe, and two end faces of the inner pipe extend outwards and wrap the end face of the oil pipe; the inner pipe is made of an ultrahigh molecular polyethylene composite material or a thermoplastic high-density polyethylene composite material, and the thickness of the inner pipe is 4-6 mm; and the mounting seat for the overhead pipeline is detachably mounted outside the oil pipe.

Preferably: the mounting seat comprises a lantern ring, an arc plate, at least four springs, a base, a flange and a rotating frame; the spring is arranged along the circumferential direction of the sleeve ring, one end of the spring is fixedly arranged on the sleeve ring, the rotating frame is arranged on the base, the sleeve ring is rotatably connected with the rotating frame through the flange, the arc plate is arranged on the base and surrounds the sleeve ring, the other end of the spring is fixedly connected with the inner arc surface of the arc plate, and when the oil pipe is used, the sleeve ring is sleeved on the oil pipe; traditional oil pipeline support adopts and fixedly buries the base in earth, exposes and places the pipe chase on subaerial support, and oil pipeline is placed to the pipe chase. The arrangement is capable of achieving supporting of the oil pipeline, so that the oil pipeline can cross special terrains such as rivers, rugged mountain roads and the like; however, in some strong wind areas, the strong wind causes external stress to the bracket, so that the stress inside the bracket changes, the bracket generates inclined internal stress, and a fixed structure is arranged between the pipeline and the mounting seat, so that the inclination trend can cause the pipeline to generate shear stress around an inclined point, the pipeline can be broken after being accumulated for a long time, and the mounting seat is improved to generate the following effects:

when the mounting seat is used specifically, the base is mounted at the bottom of the ground, the arc plate is fixedly mounted on the base at the moment, the lantern ring is sleeved on an oil pipe, the lantern ring is connected with the arc plate on the fixed mounting base through four springs, the springs are symmetrically arranged along the vertical line of the lantern ring, the bottom of the sleeve is connected with a rotating frame on the base through a flange, at the moment, when external strong wind blows the pipeline, adaptive inclination is generated along with external wind blowing of the lantern ring, the springs and the pipe are dragged, and after the strong wind passes, the pipeline is restored by the elastic force trend of the springs so as to return to the initial vertical position, and the shearing stress generated under the action of the strong wind due to the fact that a fixed structure is arranged between the pipeline and the mounting seat is eliminated, so that the phenomenon that the pipeline is broken due to the shearing stress is;

secondly, this mount pad also has the effect: in the installation, because reasons such as relief but when keeping complete parallelism, the pipeline can be extruded at the degree spring, has realized reaching the position of adaptability, and this mode can be used for installing the pipeline for a short time, and simple structure is convenient.

Preferably: an enough heat insulation structure is arranged between the oil pipe and the inner pipe; the heat-insulating structural steel sheet is prepared into a steel pipe with a closed inner cavity; and a heat insulation layer structure is arranged in the closed inner cavity of the steel pipe.

Preferably: the steel pipe comprises an inner steel ring, an outer steel ring and two steel rings, wherein the inner steel ring, the outer steel ring and the two steel rings are coaxially arranged, step surfaces are arranged at two ends of the inner steel ring and two ends of the outer steel ring, and the two steel rings are locked with the inner steel ring and the outer steel ring through screws and are spliced into the steel pipe.

Preferably: the heat insulation structure comprises a gas storage sleeve and at least one heat exchange hose, the gas storage sleeve partitions the sealed inner cavity along the middle part, the inner wall of the gas storage sleeve is bonded to the inner steel ring through an inner bonding piece, and the outer wall of the gas storage sleeve is bonded to the outer steel ring through an outer bonding piece; the two ends of the gas storage sleeve are movable ends and are in extrusion contact with the steel ring; the heat exchange hose surrounds at least one circle along the inner wall of the closed inner cavity, and the water inlet end and the water outlet end of the heat exchange hose both penetrate through the outer steel ring and extend outwards until penetrating out of the outer wall of the oil pipe; the heat exchange hose is fixedly bonded with the inner steel ring, the outer steel ring and the two steel rings through glue; and two ends of the heat exchange hose are fixedly connected through a circulating pump.

Preferably: the heat-insulating layer structure also comprises a quick-charging device for quickly charging air into the air storage sleeve; the inflation expansion output part and the compression air supply part are arranged on the outer wall of the oil pipe; the inflation expansion output part comprises an air inlet pipe and an air outlet pipe which are connected in sequence, the air inlet pipe and the air outlet pipe are connected into an air inlet channel, and the air inlet end of the air inlet pipe penetrates through the oil pipe and is communicated with the outside air; the output end of the exhaust pipe is communicated to the gas storage sleeve; an air inlet gap is formed in the connecting end face of the air inlet pipe and the exhaust pipe, and the input end of the air inlet gap receives the output airflow of the compressed air supply part; the other end is an air outlet communicated with the air inlet channel; and the exhaust pipe is provided with a one-way valve for one-way air inlet.

Preferably: the output direction of the air outlet is consistent with the airflow direction of the air inlet channel, the output port of the air inlet gap is of a bent arc structure, the bending direction is arranged towards the airflow direction, and the included angle between the tangent line of the bending direction and the airflow is an obtuse angle.

Preferably: the outer wall of the oil pipe is also provided with a pressure-resistant structure; withstand voltage structure includes the shell body, establishes inside the shell body and the shell body between have accommodation space's interior casing and compression resistance ring subassembly, compression resistance ring subassembly cover is located on interior casing and is located inside the accommodation space.

Preferably: the compression-resistant ring assembly comprises a plurality of compression-resistant rings which are arranged on the inner shell in an equidistant clearance mode, a gas storage cavity is arranged in each compression-resistant ring, and high-pressure gas is filled into the inner portion of each gas storage cavity and used for resisting the pressure conducted by the outer shell.

Preferably: one of the two opposite sides of the compression resistant ring is uniformly provided with a plurality of convex columns along the circumferential direction, and the other side of the compression resistant ring is provided with matching holes which are respectively matched with the convex columns; the convex columns are provided with vent holes communicated with the gas storage cavities, the convex columns of the compression resistant rings are correspondingly inserted in the corresponding matching holes respectively, and the gas storage cavities between the adjacent compression resistant rings are communicated.

Compared with the prior art, the invention has the following beneficial effects:

(1) the inner pipe made of the ultra-high molecular polyethylene composite material or the thermoplastic high-density polyethylene composite material is arranged in the oil pipe, so that the wear resistance, corrosion resistance, wax prevention and scale prevention performance of the pipeline are improved.

(2) The heat insulation structure is arranged between the oil pipe and the inner pipe, so that the heat insulation and heat insulation effects can be achieved, when the weather is hot in summer, a worker can open a circulating pump of the heat insulation structure, the circulation of water bodies of the oil pipe close to the inner side and the outer side is realized, the temperature value of one side close to the outer side of the oil pipe is close to that of one side close to the inner side of the water pipe, and the phenomena that the pipeline deforms and breaks due to the fact that the temperature difference of the inner wall and the outer wall of the oil pipe;

it should be noted that after the water bodies close to the inner side and the outer side of the oil pipe perform circulating heat exchange, the water temperatures can rise collectively, and the temperatures can continuously supply heat at night, so that the influence of the temperature difference between day and night on the pipeline is coped with, and the service life of the pipeline is prolonged;

further, it should be noted that: the specific heat capacity of water is large, the temperature rising and falling speed is low, the pipeline is guaranteed to be kept at a constant temperature, the heat preservation effect is further improved, and the service life of the pipeline is prolonged.

In addition, because insulation construction directly contacts with the inner tube, consequently the water that is close to the oil pipe inboard is along with rising temperature, and at hydrologic cycle's in-process, the partial heat that the aquatic was given can transmit for the inner tube, consequently the temperature of the crude oil of inside transportation of interior effectual improvement, improves the flow state among the crude oil pipeline, and the inside problem of partial mill because of the unstable inside that causes of flow state is solved indirectly, further improves the life of pipeline.

(3) The invention can separate the inner temperature and the outer temperature through the water flow at the inner side and the outer side of the end of the gas storage sleeve, the inner temperature and the outer temperature of the pipeline can not be alternated, the heat preservation effect is realized, and the temperature rising water body of the water body remained at the inner side of the heat exchange hose can be preserved, so that the heat preservation of the inner pipeline is realized, and the phenomenon of eccentric wear of the pipeline caused by large temperature reduction at night is avoided.

(4) The rapid inflation device is arranged, so that the problem that the traditional inflation part is slow in inflation due to large volume of a conveying pipeline is solved, the inflation quantity is increased, the inflation speed is increased, the purpose of rapidly exchanging the circulating water body is achieved, and the effect of preserving heat of the internal water body is achieved; and as a result is simple and easy to manufacture.

(5) The invention can improve the pressure resistance through the oil pipe pressure-resistant ring assembly, and specifically comprises the following steps: the anti-compression ring assembly comprises an inner shell and an outer shell, wherein a plurality of anti-compression rings which are mutually attached are arranged between the inner shell and the outer shell, the anti-compression rings are improved to play a role of flatly supporting the outer shell, and meanwhile, high-pressure gas is filled into the anti-compression rings after the oil pipe is installed, so that the anti-compression rings have high anti-compression capacity, and the outermost layer of the oil pipe has good pressure resistance, so that the oil pipe can be used as a long-term use product, the service life of the oil pipe can be prolonged, the problem of oil leakage caused by collision damage of the outer wall is avoided, and the adaptability of;

in addition, the anti-compression ring assembly is simple in structure, low in manufacturing cost and easy to popularize.

The invention also discloses a production method of the tubing with the ultrahigh molecular polyethylene fiber lining, which is characterized by comprising the following steps: the method comprises the following steps:

s1 preparing an oil pipe, an ultra-high molecular polyethylene inner lining pipe, an inner steel ring, an outer steel ring, two steel rings, an air storage sleeve, a circulating hose, an anti-compression ring and a quick charging device in advance; a notch for the heat exchange hose to penetrate out and an air hole for the quick charging device to penetrate through are formed in the oil pipe through hole rotating equipment;

preparing an S2 heat preservation structure: turning steps at two ends of the inner steel ring and the outer steel ring through a lathe, forming a notch for a heat exchange hose to penetrate out and an air hole for a quick charging device to penetrate through the outer steel ring through a hole turning device, then installing the inner bonding piece and the outer bonding piece on two sides of the air storage sleeve, sending the air storage sleeve into the closed inner cavity, fixedly connecting the inner bonding piece and the outer bonding piece in the inner steel ring and the outer steel ring respectively, encircling at least one circle of the circulating hose on the inner wall of the closed inner cavity and cementing and fixing the circulating hose, and enabling two ends to penetrate out along the notches on the outer steel ring and the oil pipe;

controlling the inner steel ring and the outer steel ring to be concentric and arranged in a gap manner; installing the two steel rings on the inner steel ring and the outer steel ring through screws, and splicing the inner steel ring, the outer steel ring and the two steel rings into a steel ring with a closed inner cavity;

s3 preparation of pressure-resistant component: firstly, pre-preparing an anti-compression ring with a hollow structure, an inner shell and an outer shell which are made of steel, arranging matching holes on two side surfaces of the anti-compression ring through a hole rotating device, welding a convex column on one matching hole, and arranging a vent hole on the convex column;

the side walls of the inner shell and the outer shell are provided with notches through which the heat exchange hoses pass and air supply holes through which the quick charging devices pass through;

the compression-resistant rings are connected in series through the convex columns and the matching holes to form a compression-resistant ring set, high-pressure gas is filled into the compression-resistant ring set through an air charging device and is arranged in a sealing mode, the inner shell and the outer shell are concentrically arranged through a die, an accommodating space is formed between the inner shell and the outer shell, and the compression-resistant ring set longitudinally penetrates into the accommodating space and is connected with the inner shell and the outer shell through glue;

preparing an S4 mounting seat: preparing a spring and a base in advance, preparing a lantern ring with a flange and an arc plate through a die, installing a rotating frame on the base through a welding part, rotatably installing the lantern ring on the rotating frame through the flange, and uniformly welding the lantern rings at two ends of the spring on the outer arc surface of the lantern ring and the inner arc surface of the arc plate in the circumferential direction; the two ends of the arc plate are welded on the base, and the circle center of the arc plate and the circle center of the lantern ring are positioned on the same vertical line;

s5 assembling: sleeving the ultrahigh molecular polyethylene lining pipe into the inner cavity of the oil pipe through a mold, arranging an axis between the ultrahigh molecular polyethylene lining pipe and the oil pipe at the moment, forming a gap between the ultrahigh molecular polyethylene lining pipe and the oil pipe, installing the prepared heat insulation structure in the gap, and connecting by adopting glue joint; simultaneously, two ends of the hose penetrate out of the outer wall of the oil pipe along the notch; meanwhile, an air inlet pipe is arranged on the air storage sleeve and penetrates out along the air hole;

after the heat preservation mechanism is installed, the pressure-resistant assembly is sleeved outside the oil pipe along two ends of the oil pipe, two ends of the heat exchange pipeline penetrate through the outer shell along the notch, the air inlet pipe on the air storage sleeve penetrates out along the air hole in the outer shell, and then the pressure-resistant assembly is glued outside the oil pipe through glue;

after the pressure-resistant assembly is processed, the circulating pumps are arranged at two ends of the heat exchange pipeline to realize water circulation; the quick charging device is arranged on the outer wall of the outer shell of the pressure-resistant assembly, and the input ends of the quick charging device are communicated with each other through a connecting pipe;

s6 edge sealing at the end part: the lining pipe is hot-melted and pulled up outwards by a hot-melting stretching device and is pulled towards the outer wall

Extending to surround and shape the end part of the whole pipeline to obtain a finished product;

assembling an S7 mounting seat: when the pipeline needs to be installed, the installation seat can be sleeved on the pipeline at equal intervals through the lantern ring.

According to the preparation method, the heat-insulating layer is additionally arranged in front of the traditional inner steel ring and the traditional outer steel ring and is used for heat insulation in a water circulation mode, and the heat-insulating structure is directly connected with the inner pipe in an adhesive manner, so that the water body close to the inner side of the oil pipe is heated, and part of heat supplied by water is transferred to the inner pipe in the water circulation process, so that the temperature of the crude oil transported inside is effectively increased, the flow state in the crude oil pipeline is improved, the problem of internal eccentric wear caused by unstable flow state inside is indirectly solved, and the service life of the pipeline is further prolonged;

secondly, the method also discloses a preparation method of the pressure-resistant assembly, the pressure-resistant assembly adopts a plurality of interconnected compression-resistant rings with communicated inner cavities to make a main supporting part, and the same amount of steel is known, a cylinder is more pressure-resistant than a cuboid, and a hollow steel pipe with the same mass is more pressure-resistant than a solid steel pipe. Meanwhile, the larger the diameter is, the smaller the compression ratio is, and vice versa, so that the supporting part of the pressure-resistant assembly is made of a circular ring, an arch effect can be generated, the compression resistance is improved, high-pressure gas is filled into the compression-resistant ring, the external force generated when the shell is pressed and impacted can be resisted, the reaction force can be generated, and the reaction effect is uniformly dispersed, so that the compression resistance is improved;

the method is characterized in that the mounting seat is prepared, when the mounting seat is used specifically, the base is arranged at the bottom of the ground, the arc plate is fixedly arranged on the base at the moment, the lantern ring is sleeved on the oil pipe, the lantern ring is connected with the arc plate on the fixed mounting base through four springs which are symmetrically arranged along the vertical line of the lantern ring, and the bottom of the sleeve is connected with the rotating frame on the base through the flange, at the moment, when external strong wind blows through the pipeline, the pipeline can generate adaptive inclination along with the external wind blowing of the sleeve ring, meanwhile, the spring is dragged, and after strong wind passes, the pipeline can be restored by the elastic force trend of the spring so as to return to the initial vertical position, and eliminates the shear stress generated under the action of strong wind because a fixed structure is arranged between the pipeline and the mounting seat, so as to avoid the phenomenon that the pipeline is broken and damaged due to the shearing stress, thereby prolonging the service life and improving the safety of the pipeline.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of the insulation layer structure;

FIG. 3 is a schematic structural diagram of a quick charging device;

FIG. 4 is a schematic structural diagram of a voltage withstanding structure;

FIG. 5 is a schematic diagram of the anti-crush ring;

FIG. 6 is a schematic structural view of the mounting base;

fig. 7 is a schematic structural view of the mounting bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-7, an oil pipe with a lining pipe made of ultra-high molecular polyethylene fiber comprises an oil pipe 1, in the embodiment of the present invention, an inner pipe 2 is fixedly installed inside the oil pipe 1, two end faces of the inner pipe 2 extend outwards and wrap the end face of the oil pipe 1; the inner pipe 2 is made of an ultrahigh molecular polyethylene composite material or a thermoplastic high-density polyethylene composite material, the thickness of the inner pipe 2 is 4-6mm, and a mounting seat 8 for an overhead oil pipe is detachably mounted on the outer portion of the oil pipe 1.

In the embodiment of the present invention, the mounting seat 8 includes a collar 81, a circular arc plate 82, at least four springs 83, a base 84, a flange 85, and a rotating frame 86; spring 83 sets up and this spring 83 along lantern ring 81 circumference, and one end fixed mounting on the lantern ring 81, the rotating turret 86 is installed on the base 84, the lantern ring 81 passes through flange 85 rotates with the rotating turret 86 to be connected, arc plate 82 installs on the base 84 and surrounds lantern ring 81, the other end of spring 83 and the intrados fixed connection of arc plate 82, during the use, the lantern ring 81 cover is established on oil pipe 1.

Traditional oil pipeline support adopts and fixedly buries the base in earth, exposes and places the pipe chase on subaerial support, and oil pipeline is placed to the pipe chase. The arrangement is capable of achieving supporting of the oil pipeline, so that the oil pipeline can cross special terrains such as rivers, rugged mountain roads and the like; however, in some strong wind areas, the strong wind causes external stress to the bracket, so that the stress inside the bracket changes, the bracket generates inclined internal stress, and a fixed structure is arranged between the pipeline and the mounting seat, so that the inclination trend can cause the pipeline to generate shear stress around an inclined point, the pipeline can be broken after being accumulated for a long time, and the mounting seat is improved to generate the following effects:

In addition, it should be further noted that when the lantern ring 81 is located at the central position, the bases 84 on the two sides of the lantern ring 81 can be provided with the infrared sensors 87, the infrared sensors 84 are connected with the time relay, the controller, the remote gateway and the alarm, when the oil pipe inclines, the stay time of the induction area of the infrared sensors 87 exceeds the specified time, at the moment, the infrared sensors can transmit signals to the controller through the remote gateway, the controller controls the alarm to sound, the alarm reminds the staff of abnormal position of the oil pipe, and the remote monitoring effect is realized.

In the specific embodiment of the invention, a sufficient heat insulation structure is arranged between the oil pipe 1 and the inner pipe 2; the steel sheet with the heat insulation structure is prepared into a steel pipe 3 with a closed inner cavity 30; and a heat-insulating layer structure 4 is arranged in the closed inner cavity 30 of the steel pipe 3.

In the specific embodiment of the invention, the steel pipe 3 comprises an inner steel ring 31, an outer steel ring 32 and two steel rings 33 which are coaxially arranged, step surfaces are arranged at two ends of the inner steel ring 31 and the outer steel ring 32, and the two steel rings 33 are locked with the inner steel ring 31 and the outer steel ring 32 through screws and are spliced to form the steel pipe 3.

In the specific embodiment of the present invention, the insulating layer structure 4 includes a gas storage sleeve 41 and ten heat exchange hoses 42, the gas storage sleeve 41 partitions the closed inner cavity 30 along the middle part, the inner wall of the gas storage sleeve is bonded to the inner steel ring 31 through an inner bonding member, and the outer wall of the gas storage sleeve is bonded to the outer steel ring 32 through an outer bonding member; the two ends of the gas storage sleeve 41 are movable ends and are in extrusion contact with the steel ring 33; the heat exchange hose 42 surrounds at least one circle along the inner wall of the closed inner cavity 30, and the water inlet end and the water outlet end of the heat exchange hose 42 both pass through the outer steel ring 32 and extend outwards until penetrating out of the outer wall of the oil pipe 1; the heat exchange hose 42 is fixedly bonded with the inner steel ring 31, the outer steel ring 32 and the two steel rings 33 through glue; the two ends of the heat exchange hose 42 are fixedly connected through a circulation pump 43.

It should be noted that: the heat exchange hoses are uniformly arranged along the circumferential direction of the oil pipe, and the circulating pumps connected with the inner end parts of the heat exchange pipes are uniformly controlled by a controller;

when weather is hot, if a worker can pump the circulating pump of the heat-insulating structure, the impact force of water flow can push the gas storage sleeves at the upper end and the lower end open, and the water bodies close to the inner side and the outer side of the oil pipe are circulated continuously, so that the temperature of the water bodies at the inner side and the outer side is kept consistent,

at night, the circulating pump can be closed, the impact force of water flow is reduced or even disappears, the hose can be extruded by the air pressure of the air storage sleeve at the moment, the water circulation partition is realized, the water inside the water circulation partition is the water heated in the water circulation process in the daytime, the external temperature at night is reduced, and the water circulation partition water body can not circularly exchange heat to the inner pipeline, so that the heat preservation is realized.

In the embodiment of the present invention, the thermal insulation structure 4 further includes a quick inflation device 5 for quickly inflating the interior of the gas storage casing 41; the quick charging device 5 comprises an inflation expansion output part 51 and a compressed air supply part 52 arranged on the outer wall of the oil pipe 1; the inflation expansion output part 51 comprises an air inlet pipe 511 and an air outlet pipe 512 which are sequentially connected, the air inlet pipe 511 and the air outlet pipe 512 are connected into an air inlet channel 513, and the air inlet end of the air inlet pipe 511 penetrates through the oil pipe 1 and is communicated with the outside air; the output end of the exhaust pipe 512 is communicated to the gas storage sleeve 41; an air inlet gap 514 is arranged on the connecting end surface of the air inlet pipe 511 and the air outlet pipe 512, and the input end of the air inlet gap 514 receives the output airflow of the compressed air supply part 52; the other end is an air outlet communicated with the air inlet channel 513; the exhaust pipe 512 is provided with a check valve 515 for one-way air intake.

In the embodiment of the present invention, the output direction of the air outlet 516 is the same as the airflow direction of the air inlet channel 513, the output port of the air inlet gap 514 is a curved structure, the curved direction is set toward the airflow direction, and the included angle between the tangent of the curved direction and the airflow is an obtuse angle.

The air interchanger is mainly used for quick inflation, so that the air intake efficiency is improved, the cut-off efficiency is improved, and the heat preservation is better realized; secondly the pipeline is used in the open air usually, overhauls when the maintainer is outside, only relies on the inflator pump, and the efficiency of admitting air is low, and is consuming time for a long time, and it is big to consume the labour, uses this structure of filling soon, and is little to the requirement of equipment, and aerifys efficiently.

It should be noted that the specific working principle of the ventilation device is as follows:

the staff is through the valve port of aerating device facing to the check valve and aerify, can compress the portion of supplying gas simultaneously, the portion of supplying gas can be sent into the air current passageway with external gas along reserve inlet channel to the compression portion of supplying gas, form ke da yan effect, the air amplifier of ke yan da effect is known, the air increaser that the air current is drawn and drawn the effect is very good, therefore, as long as through little compression guide air current, this air current produces the wall effect at the air current passageway, must produce the negative pressure at the inlet port of intake pipe, produce the huge convulsions effect of air to the external world, the air current that gets into the gas storage sleeve inside this moment, velocity of flow and air current impact force increase by a wide margin, this huge impact force can offset the circulating pump stage in the twinkling of an eye, the water current impact force of rivers self in the pipeline.

Secondly, when the oil pipe is used outdoors in an area which is difficult to monitor, if the air pressure in the air bag is insufficient, the compressed air supply part can be manually pressed to inflate so as to keep the internal air pressure sufficient.

Example 2 differs from example 1 in that

As shown in fig. 4-5, in the embodiment of the present invention, the outer wall of the oil pipe 1 is further provided with a pressure-resistant structure 6; withstand voltage structure 6 includes shell body 61, the cover establish shell body 61 inside and with shell body 61 between have accommodation space's interior casing 62 and compression-resistant ring subassembly 63, compression-resistant ring subassembly 63 cover is located interior casing 62 on and is located accommodation space inside.

In the embodiment of the present invention, the anti-pressure ring assembly 63 includes a plurality of anti-pressure rings 64 disposed on the inner casing 62 at equal intervals, a gas storage cavity 65 is disposed in the anti-pressure ring 64, and high-pressure gas is filled in the gas storage cavity 65 to resist the pressure conducted by the outer casing 61.

In the specific embodiment of the present invention, one of two opposite sides of the anti-compression ring 64 is uniformly provided with a plurality of protruding columns 66 along the circumferential direction, and the other side is provided with matching holes 67 respectively adapted to the protruding columns 66; the convex columns 66 are provided with vent holes communicated with the air storage cavities 65, the convex columns 66 of the compression resistant rings 64 are correspondingly inserted into the corresponding matching holes 67 respectively, and the air storage cavities 65 between the adjacent compression resistant rings 64 are communicated.

When the anti-compression ring is used specifically, the connection position of the convex column of the adjacent anti-compression ring and the matching hole is sealed through the sealing ring, so that air leakage is avoided.

In addition, the same amount of steel is known, a cylinder is more pressure-resistant than a cuboid, a hollow steel pipe with the same mass is more pressure-resistant than a solid steel pipe, the thickness of the same steel pipe is known, the larger the diameter is, the smaller the pressure-resistant ratio is, and the larger the pressure-resistant ratio is, so that the pressure-resistant structure is formed by a plurality of hollow pressure-resistant rings, and the pressure-resistant strength of the pressure-resistant structure can be improved;

it is further explained that:

the air storage and admission cavities between the adjacent compression resistant rings are communicated, so that high-pressure air can be filled in an open environment during actual use, the phenomena of sinking and the like of a pipeline shell can be avoided, and when the environment at the bottom of a water surface works, fluids such as water and the like can be filled in the air storage and admission cavities, the weight of the air storage and admission cavities is improved, so that the air storage and admission cavities can better enter the bottom of a water body, and the air storage and admission cavities can drain water and introduce air when the air storage and admission cavities need to be detached for maintenance and.

(2) The temperature value of one side close to the outer side of the oil pipe is close to that of one side close to the inner side of the water pipe by arranging the heat insulation layer structure, so that the phenomena of deformation and breakage of the pipeline caused by large temperature difference of the inner wall and the outer wall of the oil pipe are avoided;

(3) The invention can separate the inside and outside temperature by the water flow inside and outside the end of the gas storage sleeve, and the inside and the outside temperature of the pipeline can be separated

And the temperature on the outer side can not be alternated, so that the heat preservation effect is realized, and the temperature rising water body remained in the water body on the inner side of the heat exchange hose can be preserved, so that the heat preservation of the inner pipeline is realized, and the eccentric wear phenomenon of the pipeline caused by the large temperature reduction at night is avoided.

Example 3

In addition, the invention also discloses a production method of the tubing with the ultrahigh molecular polyethylene fiber lining, which is characterized by comprising the following steps: the method comprises the following steps:

secondly, the method also discloses a preparation method of the pressure-resistant assembly, the pressure-resistant assembly adopts a plurality of interconnected compression-resistant rings with communicated inner cavities to make a main supporting part, and the same amount of steel is known, a cylinder is more pressure-resistant than a cuboid, and a hollow steel pipe with the same mass is more pressure-resistant than a solid steel pipe. Meanwhile, the larger the diameter is, the smaller the compression ratio is, and vice versa, so that the supporting part of the pressure-resistant assembly is made of a circular ring, an arch effect can be generated, the compression resistance is improved, high-pressure gas is filled into the compression-resistant ring, the external force generated when the shell is pressed and impacted can be resisted, the reaction force can be generated, and the reaction effect is uniformly dispersed, so that the compression resistance is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a bushing pipe oil pipe in ultrahigh molecular polyethylene, includes oil pipe (1), its characterized in that: an inner pipe (2) is fixedly arranged in the oil pipe (1), and two end faces of the inner pipe (2) extend outwards and wrap the end face of the oil pipe (1); the inner pipe (2) is made of an ultrahigh molecular polyethylene composite material or a thermoplastic high-density polyethylene composite material, and the thickness of the inner pipe (2) is 4-6 mm; the oil pipe (1) is externally and detachably provided with a mounting seat (8) for the overhead oil pipe (1).

2. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 1, wherein: the mounting seat (8) comprises a lantern ring (81), an arc plate (82), at least four springs (83), a base (84), a flange (85) and a rotating frame (86); spring (83) set up along lantern ring circumference, and one end fixed mounting on the lantern ring (81), rotating turret (86) are installed on base (84), the lantern ring (81) passes through flange (85) are rotated with rotating turret (86) and are connected, arc plate (82) are installed on base (84) and are surrounded lantern ring (81), the other end of spring (83) and the intrados fixed connection of arc plate (82), during the use, the cover is established on oil pipe (1) to lantern ring (81).

3. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 1, wherein: an enough heat insulation structure is arranged between the oil pipe (1) and the inner pipe (2); the heat insulation structure comprises a steel pipe (3) with a closed inner cavity (30) and made of steel sheets; an insulating layer structure (4) is arranged in the closed inner cavity of the steel pipe (3);

the steel pipe (3) comprises an inner steel ring (31), an outer steel ring (32) and two steel rings (33) which are coaxially arranged, step surfaces are arranged at two ends of the inner steel ring (31) and the outer steel ring (32), and the two steel rings (33) are locked with the inner steel ring (31) and the outer steel ring (32) through screws and spliced into the steel pipe (3).

4. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 3, wherein: the heat-insulating layer structure (4) comprises a gas storage sleeve (41) and at least one heat exchange hose (42), the gas storage sleeve (43) partitions the closed inner cavity (30) along the middle part, the inner wall of the gas storage sleeve is bonded on the inner steel ring (31) through an inner bonding piece, and the outer wall of the gas storage sleeve is bonded on the outer steel ring (32) through an outer bonding piece; the two ends of the gas storage sleeve (41) are movable ends and are in extrusion contact with the steel ring (33); the heat exchange hose (42) surrounds at least one circle along the inner wall of the closed inner cavity (30), and the water inlet end and the water outlet end of the heat exchange hose (42) both penetrate through the outer steel ring (32) and extend outwards until penetrating out of the outer wall of the oil pipe (1); the heat exchange hose (42) is fixedly bonded with the inner steel ring (31), the outer steel ring (32) and the two steel rings (33) through glue; and two ends of the heat exchange hose (42) are fixedly connected through a circulating pump (43).

5. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 4, wherein: the heat-insulating layer structure (4) also comprises a quick-charging device (5) for quickly charging air into the air storage sleeve (41); the quick charging device (5) comprises an inflation expansion output part (51) and a compression air supply part (52) arranged on the outer wall of the oil pipe; the inflation expansion output part (51) comprises an air inlet pipe (511) and an air outlet pipe (512) which are sequentially connected, the air inlet pipe (511) and the air outlet pipe (512) are connected to form an air inlet channel (513), and the air inlet end of the air inlet pipe (511) penetrates through the oil pipe (1) and is communicated with the outside air; the output end of the exhaust pipe (512) is communicated to the gas storage sleeve (41); an air inlet gap (514) is formed in the connecting end face of the air inlet pipe (511) and the air outlet pipe (512), and the input end of the air inlet gap (514) receives the output airflow of the compressed air supply part (52); the other end is an air outlet (516) communicated with the air inlet channel (513); and a one-way valve (515) for one-way air inlet is mounted on the exhaust pipe (512).

6. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 5, wherein: the output direction of air outlet (516) is unanimous with the air current direction of inlet channel (513), just the delivery outlet of air inlet gap (514) is the curved arc structure, and the crooked direction sets up towards the air current direction, and the contained angle between the tangent line of this crooked direction and the air current is the obtuse angle.

7. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 6, wherein: the outer wall of the oil pipe (1) is also provided with a pressure-resistant structure (6); withstand voltage structure (6) include shell body (61), establish in shell body (61) inside and with shell body (61) between have accommodation space's interior casing (62) and compression-resistant ring subassembly (63), compression-resistant ring subassembly (63) cover is located on interior casing (62) and is located inside the accommodation space.

8. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 7, wherein: compression-resistant ring subassembly (63) include that a plurality of equidistant gaps set up compression-resistant ring (64) on inner casing (62), be equipped with in compression-resistant ring (64) and store up gas chamber (65), this stores up and holds the pressure that gas chamber (65) inside fills high-pressure gas and be used for keeping out outer casing (61) conduction.

9. The ultra-high molecular weight polyethylene lined pipe oil pipe of claim 8, wherein: one side of two opposite sides of the compression resisting ring (64) is uniformly provided with a plurality of convex columns (66) along the circumferential direction, and the other side of the compression resisting ring is provided with matching holes (67) which are respectively matched with the convex columns (66); the convex columns (66) are provided with vent holes communicated with the air storage cavities (65), the convex columns (66) of the compression resistant rings (64) are correspondingly inserted into the corresponding matching holes (67), and the air storage cavities (65) between the adjacent compression resistant rings (64) are communicated.

10. A production method of an oil pipe of an ultra-high molecular polyethylene lining pipe is characterized by comprising the following steps: the method comprises the following steps:

s6 edge sealing at the end part: the lining pipe is hot-melted and pulled outwards through hot-melting stretching equipment, and extends towards the outer wall to surround and shape the end part of the whole pipeline, so that a finished product is obtained;