CN111963789A - Flexible non-metal pipeline - Google Patents
Flexible non-metal pipeline Download PDFInfo
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- CN111963789A CN111963789A CN202010768529.3A CN202010768529A CN111963789A CN 111963789 A CN111963789 A CN 111963789A CN 202010768529 A CN202010768529 A CN 202010768529A CN 111963789 A CN111963789 A CN 111963789A
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- air guide
- layer
- gas
- wall
- flexible non
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/14—Flanged joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a flexible non-metal pipeline which comprises an inner lining layer and an air guide layer, wherein a conveying channel is formed on the inner wall of the inner lining layer, the air guide layer is attached to the outer wall of the inner lining layer, and a plurality of air guide grooves are formed in one side of the air guide layer, which is in contact with the outer wall of the inner lining layer. The invention can seal the gas in the pipe wall to prevent the gas from leaking out through permeation, and has the function of safely discharging the gas sealed in the pipe body.
Description
Technical Field
The invention belongs to the technical field of pipelines, and particularly relates to a flexible non-metal pipeline.
Background
The flexible non-metal pipe has the advantages of corrosion resistance and high pressure bearing capacity, and is widely applied to ground oil-water medium conveying pipelines by oil-gas fields. At present, a three-layer structure is generally adopted for a flexible non-metal pipe, wherein an inner liner layer and an outer protective layer are generally made of polyethylene materials with poor gas barrier property, so that gas components in pipe holes can penetrate through the inner liner layer through the permeation action and then gather in an enhancement layer to generate higher pressure, and further a pipe body is damaged (such as collapse of the inner liner layer and damage of the outer protective layer); and the oil field produced fluid contains H2S, if the gas in the enhancement layer continues to permeate through the outer protective layer, the leaked H2S gas can harm the health of people and pollute the environment. Therefore, the current flexible non-metal composite pipe cannot be used for conveying high-pressure gas media.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a flexible non-metal pipeline which can seal gas in a pipe wall to prevent the gas from leaking out through permeation and has the function of safely discharging the gas sealed in the pipe body.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides a flexible non-metallic pipeline, includes inner liner and air guide layer, the inner wall of inner liner forms transfer passage, the laminating is provided with on the outer wall of inner liner the air guide layer, the air guide layer contact a plurality of air guide grooves have been seted up to one side of inner liner outer wall.
Furthermore, the air guide layer comprises a plurality of air guide belts, each air guide belt is provided with the air guide grooves, each air guide belt is spirally wound on the outer wall of the inner liner, and the adjacent two air guide belts are tightly attached.
Further, the air guide layer comprises a sealing layer which is attached to the air guide layer.
Further, still include the laminating and set up the enhancement layer on the sealing layer.
Further, the protective layer comprises an outer protective layer which is arranged on the reinforced layer in a fitting mode.
The connecting device comprises an outer clamping sleeve, an inner clamping sleeve, a flange plate, an exhaust block and an air duct, wherein the outer clamping sleeve is fixedly sleeved on the outer wall of the outer protective layer; a conveying channel is formed on the inner wall of the inner clamping sleeve, one end of the inner clamping sleeve is fixedly connected with the end face of the flange plate, the other end of the inner clamping sleeve extends into the conveying channel of the inner lining layer, and the outer wall of the inner clamping sleeve is fixed on the inner wall of the inner lining layer; the exhaust block is sleeved on the inner clamping sleeve, a gas collecting groove is formed in the exhaust block, an exhaust passage communicated with the gas collecting groove is further formed in the exhaust block, one end of the gas guide pipe is communicated with the gas collecting groove, and the other end of the gas guide pipe is communicated with the gas guide groove.
Furthermore, the length of the air duct extending into the air duct groove should exceed the end parts of the outer cutting sleeve and the inner cutting sleeve.
Furthermore, mounting holes which are the same as the gas guide grooves in number and communicated with the gas collecting groove are formed in one end, far away from the flange, of the exhaust block, a gas guide pipe joint is connected in each mounting hole in a threaded mode, and one end of the gas guide pipe penetrates through the gas guide pipe joint and then extends into the gas collecting groove.
Furthermore, a sealing plug is arranged between each air guide pipe joint and the corresponding air guide groove.
Furthermore, a sealing ring is arranged at one end, far away from the exhaust block, of the flange plate.
Compared with the prior art, the invention has at least the following beneficial effects: the invention provides a flexible non-metal pipeline, wherein an air guide layer is attached to the outer wall of an inner lining layer, a plurality of air guide grooves are formed in one side, contacting with the outer wall of the inner lining layer, of the air guide layer, when gas in a conveying channel of the inner lining layer permeates the inner lining layer, the permeated gas enters the air guide grooves and is discharged through the air guide grooves, when the flexible non-metal pipeline is used, for example, the air guide grooves are connected with air guide pipes, and the permeated gas is guided into an external collecting device through the air guide pipes. It can be seen that the flexible non-metallic conduit of the present invention does not cause damage to the conduit due to the accumulation of permeated gases, as compared to conventional flexible non-metallic conduits.
Further, the air guide layer includes a plurality of air guide belts, has seted up the air guide groove on every air guide belt, and every air guide belt spiral winding is on the outer wall of inner liner, and two adjacent air guide belts closely laminate, and the benefit of design like this is that, when adopting spiral winding's mode can prevent to lead to the inner liner to take place deformation because of pressure, the air guide belt still can be fine laminate on the inner liner, and then ensures that the air guide groove can better gathering infiltration gas.
Further, a sealing layer is arranged on the gas guide layer, and the sealing layer can effectively seal the permeating gas at the inner side of the gas guide layer, namely effectively prevent the harmful gas from leaking.
Furthermore, a reinforcing layer is arranged on the sealing layer and used for bearing various loads, such as internal pressure, external crushing, axial stretching and the like.
Further, still be provided with the outer protective layer on the enhancement layer, the protective layer can protect its inside body structure, prevents external force damage.
Furthermore, the outer clamping sleeve is sleeved on the outer wall of the outer protection layer, so that the fixation between the inner clamping sleeve and the inner protection layer can be conveniently and quickly realized, and the inner clamping sleeve extends into the conveying channel of the inner lining layer, so that the fixation between the inner clamping sleeve and the inner lining layer can be conveniently and quickly realized; sleeving an exhaust block on the inner clamping sleeve, wherein a gas collecting groove is formed in the exhaust block, an exhaust passage communicated with the gas collecting groove is further formed in the exhaust block, one end of a gas guide pipe is communicated with the gas collecting groove, the other end of the gas guide pipe is communicated with the gas guide groove, namely, the permeating gas in the gas guide groove is guided into the gas collecting groove through the gas guide pipe, and the gas is collected by the gas collecting groove, discharged through the exhaust passage and collected by an external collecting device; the flange plate is used for rapidly realizing butt joint and fixation between two pipelines. Therefore, by utilizing the connecting device, the butt joint between the two pipelines can be rapidly realized, and the permeation gas in each pipeline can be led out and collected.
Furthermore, the length of the air duct extending into the air guide groove is beyond the end parts of the outer clamping sleeve and the inner clamping sleeve, so that the air path is guaranteed to be smooth after the clamping sleeve is pressed to cause the local deformation of the air guide groove.
Furthermore, the mounting holes which are the same as the air guide grooves in quantity and communicated with the air collecting grooves are formed in the end, far away from the flange plate, of the exhaust block, an air guide pipe joint is connected in each mounting hole in a threaded mode, one end of each air guide pipe penetrates through the air guide pipe joint and then extends into the air collecting grooves, namely, each air guide groove corresponds to one mounting hole, and each air guide pipe is fixedly connected with the mounting holes through the air guide pipe joints, so that the installation is convenient.
Furthermore, a sealing plug is arranged between each air guide pipe joint and the corresponding air guide groove, and the sealing plug can prevent permeation gas in the air guide groove from leaking outwards.
Furthermore, a sealing ring is arranged at one end, far away from the exhaust block, of the flange plate, and the sealing ring can prevent the phenomenon of gas leakage between the two butted flange plates.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a flexible non-metallic conduit according to the present invention;
FIG. 2 is a schematic view of the connection between the inner liner layer and the air guide band of the flexible non-metallic conduit of the present invention;
FIG. 3 is a schematic structural view of an air conduction band of the flexible non-metallic conduit of the present invention;
FIG. 4 is a schematic structural view of the connection device for flexible non-metallic pipes according to the present invention in cooperation with a flexible non-metallic pipe.
1-an inner liner layer; 2-a gas-conducting layer; 2-1-a gas-conducting belt; 2-2-air guide groove; 3-sealing layer; 4-an enhancement layer; 5-an outer protective layer; 6-outer cutting sleeve; 7-inner cutting sleeve; 8-a flange plate; 9-an exhaust block; 9-1-first chunk; 9-2-second chunk; 10-gas-guide tube; 11-a gas collecting tank; 12-an exhaust passage; 13-gas duct joint; 14-a sealing plug; 15-sealing ring.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. 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.
As a specific embodiment of the present invention, as shown in fig. 1, a flexible non-metallic pipeline includes, from inside to outside, an inner liner 1, an air guide layer 2, a sealing layer 3, a reinforcing layer 4, and an outer protection layer 5, which are sequentially attached to each other, that is, the air guide layer 2 is attached to an outer wall of the inner liner 1, the sealing layer 3 is attached to an outer wall of the air guide layer 2, the reinforcing layer 4 is attached to an outer wall of the sealing layer 3, the outer protection layer 5 is attached to an outer wall of the reinforcing layer 4, and the space between each layer and the inside of each layer may be independent from each other, or may be bonded.
The inner liner layer 1 is made of thermoplastic plastics through an extrusion molding process, a closed conveying channel is formed in the inner wall of the inner liner layer 1, and the inner liner layer 1 can be made of materials such as PE (polyethylene), PA (polyamide) and the like and is specifically selected according to media and temperature.
One side of the gas guide layer 2, which is contacted with the outer wall of the lining layer 1, is provided with a plurality of gas guide grooves 2-2 for gathering the permeating gas. Preferably, as shown in fig. 2 and 3, the air guide layer 2 includes a plurality of air guide belts 2-1, each air guide belt 2-1 is provided with an air guide groove 2-2, each air guide belt 2-1 is spirally wound on the outer wall of the inner liner layer 1, and two adjacent air guide belts 2-1 are tightly attached. That is, the air guide layer 2 consists of a plurality of air guide belts 2-1 spirally wound on the outer wall of the lining layer 1; the air-guide belt 2-1 is made of thermoplastic plastics, such as PE (polyethylene), PA (polyamide) and the like. The gas guide belt 2-1 is spirally wound to prevent the gas guide belt 2-1 from being well attached to the lining layer 1 when the lining layer 1 is deformed due to pressure, so that the gas guide groove 2-2 can better collect the permeating gas.
The sealing layer 3 is made of thermoplastic plastics with high gas barrier property through an extrusion molding process, and can effectively seal permeating gas at the inner side of the sealing layer; the sealing layer 3 may be made of PVDF (polyvinylidene fluoride), EVOH (ethylene vinyl alcohol copolymer), or the like.
The reinforcing layer 4 can be formed by winding reinforcing fibers and is used for bearing various loads, such as internal pressure, external crushing, axial stretching and the like; the reinforcing fiber comprises organic fiber and inorganic fiber, such as polyester fiber, glass fiber and the like, and can also be embedded in a certain base material to form a reinforcement body, such as a glass fiber reinforced polyethylene belt and the like.
The outer protective layer 5 is made of thermoplastic plastics through an extrusion molding process and is used for protecting the pipe body structure in the outer protective layer; the outer protective layer 5 may be made of PE (polyethylene) or the like.
In a preferred embodiment of the present invention, the flexible non-metallic pipe comprises a connecting device for connecting the flexible non-metallic pipe, that is, the connecting device is used for butt-jointing and fixing two flexible non-metallic pipes. Specifically, as shown in fig. 4, the connecting device includes an outer sleeve 6, an inner sleeve 7, a flange 8, an exhaust block 9 and an air duct 10, the outer sleeve 6, the inner sleeve 7, the flange 8 and the exhaust block 9 are made of metal materials, have necessary mechanical strength and take necessary anti-corrosion measures, and the outer sleeve 6 and the inner sleeve 7 are fastened in a buckling and pressing manner.
The outer cutting ferrule 6 is sleeved on the outer wall of the outer protection layer 5 of the pipe body, the outer cutting ferrule 6 tightly clamps and fixes the outer protection layer 5, and meanwhile, the outer cutting ferrule has a fixing effect on the exhaust block 9.
The inner wall of the inner clamping sleeve 7 forms a conveying channel, one end of the inner clamping sleeve 7 is fixedly connected with the end face of the flange 8, and in the embodiment, the inner clamping sleeve 7 and the flange 8 are integrally manufactured. The other end of the inner cutting sleeve 7 extends into a conveying channel formed by the inner wall of the inner lining layer 1, and the outer wall of the inner cutting sleeve 7 is fixed on the inner wall of the inner lining layer 1; that is, the inner clamping sleeve 7 is located in the inner liner 1 of the pipe body and extends to the end of the pipe body to clamp the inner wall of the pipe body and fix the exhaust block 9.
As shown in fig. 4, the exhaust block 9 is sleeved on the inner sleeve 7, and the exhaust block 9 is provided with a gas collecting channel 11 therein, the gas collecting channel 11 is an annular gas collecting channel provided along the circumferential direction of the exhaust block 9, the exhaust block 9 is further provided with an exhaust channel 12 communicated with the gas collecting channel 11, one end of the exhaust block 9 far away from the flange plate 8 is provided with mounting holes in the same number as the gas guide channels 2-2 and communicated with the gas collecting channel 11, each mounting hole is internally threaded with a gas guide pipe joint 13, one end of the gas guide pipe 10 passes through the gas guide pipe joint 13 and then extends into the gas collecting channel 11, the other end of the gas guide pipe 10 is communicated with the corresponding gas guide channel 2-2, that is, the other end of the gas guide pipe 10 is inserted into. A sealing plug 14 is arranged between each air duct joint 13 and the corresponding air guide groove 2-2, and the sealing plug 14 can realize air sealing on the air guide groove 2-2. Preferably, the vent 12 is threaded for connection to an external venting or purging device for controlled venting of gases or for purging the interior of the tube wall with an inert gas. That is, the gas guide tube 10 is used to guide the permeated gas in the gas guide channel 2-2 into the gas collecting channel 11, and the gas collecting channel 11 is used to collect the gas, and is discharged through the gas discharge channel 12 and collected by an external collecting device. The gas-guide tube 10 is made of stainless steel tube.
Preferably, as shown in fig. 4, in order to facilitate processing of the gas collecting channel 11 and the exhaust channel 12 on the exhaust block 9, the exhaust block 9 includes a first block 9-1 and a second block 9-2, the first block 9-1 is in threaded connection with the second block 9-2, the first block 9-1 is provided with an annular gas collecting channel 11 inside, one end of the first block 9-1, which is far away from the flange 8, is provided with mounting holes, the number of which is the same as that of the gas guiding channels 2-2 and is communicated with the gas collecting channel 11, each mounting hole is internally threaded with a gas guiding pipe joint 13, one end of the gas guiding pipe 10 penetrates through the gas guiding pipe joint 13 and then extends into the gas collecting channel 11, and the other end of the gas guiding pipe 10 is communicated with the corresponding gas guiding channel 2. The second block 9-2 is provided with an exhaust passage 12 communicated with the gas collecting groove 11 of the first block 9-1.
With two flexible non-metallic pipe butt joints fixed, specifically do: the flange plates 8 on each non-metal pipeline are butted and connected through flanges, in order to prevent air leakage between the two butted flange plates 8, a sealing ring 15 is arranged at one end, far away from the exhaust block 9, of each flange plate 8, and the butted surfaces of the two flange plates 8 are sealed through the sealing ring 15.
Examples
1) The inner liner layer 1 is formed by extrusion molding of PE100 grade polyethylene.
2) The air guide belt 2-1 is formed by PE 100-grade polyethylene through extrusion molding, 4 air guide belts 2-1 are selected, and the width of each bottom edge corresponds to 1/4 of the circumference of the outer wall of the inner liner layer 1.
3) The sealing layer 3 is formed by extrusion molding of copolymerization type PVDF (polyvinylidene fluoride).
4) The reinforcing layer 4 is formed by winding polyester fibers, the number of winding layers is even, and the thicknesses of two adjacent layers are consistent but the winding angles are opposite.
5) The outer protective layer 5 is formed by extrusion molding of PE100 grade polyethylene.
6) The outer clamping sleeve 6, the inner clamping sleeve 7 and the exhaust block 9 of the connecting device of the flexible non-metal pipeline are made of titanium alloy; the pipe body is jointed by adopting a buckling and pressing mode of 'inner expanding and outer buckling', namely, mechanical force is simultaneously applied to the outer side of the outer clamping sleeve 6 and the inner side of the inner clamping sleeve 7, so that the outer clamping sleeve and the inner clamping sleeve are plastically deformed to buckle the pipe body.
7) The sealing ring 15 and the sealing plug 14 are made of perfluororubber.
8) The exhaust passage 12 is connected with a one-way exhaust valve, the opening pressure of the one-way exhaust valve is set to be the highest pressure acceptable in the pipe wall when the pipeline normally operates, and a metal high-pressure pipe is used for communicating the exhaust valve to the gas recovery device.
The invention also has the following advantages:
1) the invention solves the problem that the conventional flexible non-metallic pipe cannot be used for high-pressure gas transmission;
2) the material and the device adopted by the invention are easy to obtain, and the flexible structure of the pipe body is still maintained;
3) the invention realizes the air sealing of the pipe body, and can carry out controlled discharge or replacement on the gas permeating through the lining layer.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a flexible non-metallic pipeline, its characterized in that, includes inner liner (1) and air guide layer (2), the inner wall of inner liner (1) forms transfer passage, the laminating is provided with on the outer wall of inner liner (1) air guide layer (2), air guide layer (2) contact a plurality of air guide grooves (2-2) have been seted up to one side of inner liner (1) outer wall.
2. The flexible nonmetal pipeline according to claim 1, wherein the air guide layer (2) comprises a plurality of air guide belts (2-1), each air guide belt (2-1) is provided with the air guide groove (2-2), each air guide belt (2-1) is spirally wound on the outer wall of the lining layer (1), and two adjacent air guide belts (2-1) are tightly attached.
3. A flexible non-metallic conduit according to claim 1, further comprising a sealing layer (3) arranged in abutment with the gas-conducting layer (2).
4. A flexible non-metallic conduit according to claim 3, further comprising a reinforcement layer (4) arranged snugly on the sealing layer (3).
5. A flexible non-metallic conduit according to claim 4, further comprising an outer protective layer (5) arranged in close proximity to the reinforcement layer (4).
6. The flexible non-metallic pipeline according to claim 5, further comprising a connecting device for connecting the flexible non-metallic pipeline, wherein the connecting device comprises an outer sleeve (6), an inner sleeve (7), a flange (8), an exhaust block (9) and an air duct (10), and the outer sleeve (6) is fixedly sleeved on the outer wall of the outer protective layer (5); a conveying channel is formed in the inner wall of the inner clamping sleeve (7), one end of the inner clamping sleeve (7) is fixedly connected with the end face of the flange plate (8), the other end of the inner clamping sleeve (7) extends into the conveying channel of the inner lining layer (1), and the outer wall of the inner clamping sleeve (7) is fixed on the inner wall of the inner lining layer (1); the exhaust block (9) is sleeved on the inner clamping sleeve (7), a gas collecting groove (11) is formed in the exhaust block (9), an exhaust passage (12) communicated with the gas collecting groove (11) is further formed in the exhaust block (9), one end of the air duct (10) is communicated with the gas collecting groove (11), and the other end of the air duct is communicated with the air guide groove (2-2).
7. A flexible non-metallic conduit according to claim 6, characterised in that the length of the gas duct (10) extending into the gas duct (2-2) should exceed the ends of the outer and inner ferrules (6, 7).
8. The flexible nonmetal pipeline according to claim 6, wherein mounting holes which are the same as the number of the air guide grooves (2-2) and are communicated with the air collecting groove (11) are formed in one end, far away from the flange plate (8), of the exhaust block (9), an air guide pipe joint (13) is connected in each mounting hole in a threaded mode, and one end of the air guide pipe (10) penetrates through the air guide pipe joint (13) and then extends into the air collecting groove (11).
9. A flexible non-metallic conduit according to claim 8, characterized in that a sealing plug (14) is arranged between each air duct joint (13) and the corresponding air duct (2-2).
10. Flexible non-metallic pipe according to claim 6, characterised in that the flange (8) is provided with a sealing ring (15) at the end remote from the exhaust block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010768529.3A CN111963789A (en) | 2020-08-03 | 2020-08-03 | Flexible non-metal pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010768529.3A CN111963789A (en) | 2020-08-03 | 2020-08-03 | Flexible non-metal pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN111963789A true CN111963789A (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010768529.3A Pending CN111963789A (en) | 2020-08-03 | 2020-08-03 | Flexible non-metal pipeline |
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| CN (1) | CN111963789A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6039083A (en) * | 1998-10-13 | 2000-03-21 | Wellstream, Inc. | Vented, layered-wall deepwater conduit and method |
| CN102620080A (en) * | 2012-04-19 | 2012-08-01 | 杭州欧佩亚海洋工程有限公司 | Lining pipe joint of marine oil pipeline |
| CN205479874U (en) * | 2015-12-21 | 2016-08-17 | 天津安纳赛能源科技有限公司 | Flexible composite inside lining pipeline connects |
| WO2018000091A1 (en) * | 2016-06-27 | 2018-01-04 | Shawcor Ltd. | Polymeric pipe with axial venting elements |
| CN207122673U (en) * | 2017-08-09 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of sour natural gas collection is defeated to use high-barrier flexible multiple tube |
| CN109416138A (en) * | 2016-06-29 | 2019-03-01 | 通用电气石油和天然气英国有限公司 | Gas discharge |
| CN208750202U (en) * | 2018-09-18 | 2019-04-16 | 浙江二橡橡塑有限公司 | A kind of wire spirally-wound hose of anti-dilatancy |
-
2020
- 2020-08-03 CN CN202010768529.3A patent/CN111963789A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6039083A (en) * | 1998-10-13 | 2000-03-21 | Wellstream, Inc. | Vented, layered-wall deepwater conduit and method |
| CN102620080A (en) * | 2012-04-19 | 2012-08-01 | 杭州欧佩亚海洋工程有限公司 | Lining pipe joint of marine oil pipeline |
| CN205479874U (en) * | 2015-12-21 | 2016-08-17 | 天津安纳赛能源科技有限公司 | Flexible composite inside lining pipeline connects |
| WO2018000091A1 (en) * | 2016-06-27 | 2018-01-04 | Shawcor Ltd. | Polymeric pipe with axial venting elements |
| CN109416138A (en) * | 2016-06-29 | 2019-03-01 | 通用电气石油和天然气英国有限公司 | Gas discharge |
| CN207122673U (en) * | 2017-08-09 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of sour natural gas collection is defeated to use high-barrier flexible multiple tube |
| CN208750202U (en) * | 2018-09-18 | 2019-04-16 | 浙江二橡橡塑有限公司 | A kind of wire spirally-wound hose of anti-dilatancy |
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Application publication date: 20201120 |
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