阅读说明：本技术 内置液体泄漏薄膜传感器的智能复合管道及其制造工艺 (Intelligent composite pipeline with built-in liquid leakage film sensor and manufacturing process thereof ) 是由 毛晔 周健 于 2020-05-18 设计创作，主要内容包括：本发明公开了一种内置液体泄漏薄膜传感器的智能复合管道及其制造工艺,包括玻璃钢内衬塑料管道,玻璃钢内衬塑料管道包括玻璃钢结构层和内衬塑料防腐层,玻璃钢内衬塑料管道通过焊接方式连接,其表面有若干条焊缝。本发明内置薄膜状漏液传感器,在不影响管道本身各项性能的基础上,可实现智能管道的硬件布设和开发,并实时监测管道工况下的漏液状态,在出现漏液时报警提示,同时自动关闭管道阀门,对于连续管部分和管道焊缝位置,采取不同的漏液监测传感器和监测机制,在节省经济成本前提下,使监测更具针对性,根据管道中的介质,通过制造不同材质的漏液感应带,可以监测水、酸碱腐蚀溶液,油等多种液体。(The invention discloses an intelligent composite pipeline with a built-in liquid leakage film sensor and a manufacturing process thereof. The invention is provided with a built-in film-shaped leakage sensor, on the basis of not influencing various performances of the pipeline, the hardware layout and development of an intelligent pipeline can be realized, the leakage state of the pipeline under the working condition can be monitored in real time, the alarm prompt is given when leakage occurs, the pipeline valve is automatically closed, different leakage monitoring sensors and monitoring mechanisms are adopted for the continuous pipe part and the pipeline welding seam position, the monitoring is more targeted on the premise of saving the economic cost, and various liquids such as water, acid-base corrosion solution, oil and the like can be monitored by manufacturing leakage induction belts made of different materials according to media in the pipeline.)

1. The utility model provides a built-in liquid leaks compound pipeline of intelligence of film sensor, includes glass steel inside lining plastic conduit (1), its characterized in that: the glass fiber reinforced plastic lining plastic pipeline (1) comprises a glass fiber reinforced plastic structure layer (2) and a lining plastic anticorrosive layer (3), wherein the glass fiber reinforced plastic lining plastic pipeline (1) is connected in a welding mode, and a plurality of welding lines (4) are arranged on the surface of the glass fiber reinforced plastic lining plastic pipeline.

2. The intelligent composite pipe with a built-in liquid leakage film sensor according to claim 1, wherein: pipeline control valve (5) are installed at the top of glass steel structural layer (2), the one end fixed mounting of glass steel inside lining plastic conduit (1) has miniature terminal connector of locate mode (6), the one end electric connection of the miniature terminal connector of locate mode (6) has locate mode weeping film induction zone (7), the other end of locate mode weeping film induction zone (7) has miniature originated connector of locate mode (8) through communication line electric connection, the miniature originated one end that connector of locate mode (8) is close to glass steel structural layer (2), welding seam (4) department winding has non-locate mode weeping film induction zone (9), the one end of non-locate mode weeping film induction zone (9) has miniature originated connector of non-locate mode (10) through communication line electric connection, the both ends of pipeline control valve (5) have locate mode weeping monitor controller (11) and multichannel non-locate mode weeping monitor controller (11) through communication line electric connection respectively And the positioning type leakage monitoring controller (11) and the multi-channel non-positioning type leakage monitoring controller (12) are electrically connected with a data analysis and display terminal (13) through communication lines.

3. The intelligent composite pipe with a built-in liquid leakage film sensor according to claim 2, wherein: the positioning type leakage film induction belt (7) is of a four-wire structure and comprises two induction circuits and two conduction circuits, and the non-positioning type leakage film induction belt (9) is of a two-wire structure and comprises two induction circuits.

4. The intelligent composite pipe with a built-in liquid leakage film sensor according to claim 2, wherein: the positioning type micro terminal connector (6) is in a film shape and is arranged between the double-layer pipelines.

5. The intelligent composite pipe with a built-in liquid leakage film sensor according to claim 2, wherein: the positioning type leakage film induction belt (7) is spirally wound on the surface of the glass fiber reinforced plastic lining plastic pipeline (1).

6. The intelligent composite pipe with a built-in liquid leakage film sensor according to claim 2, wherein: the positioning type leakage monitoring controller (11) and the multichannel non-positioning type leakage monitoring controller (12) are connected with a data analysis and display terminal (13) through RS485 interfaces, and the positioning type leakage monitoring controller (11) and the multichannel non-positioning type leakage monitoring controller (12) are connected with the pipeline control valve (5) through relay interfaces.

7. The manufacturing process of the intelligent composite pipeline with the built-in liquid leakage film sensor as claimed in claim 1, is characterized by comprising the following steps:

s1: firstly, fixing a positioning type micro terminal connector (6) at one end of a glass fiber reinforced plastic lining plastic pipeline (1), then connecting the positioning type micro terminal connector with one end of a positioning type leakage thin film induction belt (7), starting an automatic winding machine to enable the positioning type leakage thin film induction belt (7) to be spirally wound on the surface of the glass fiber reinforced plastic lining plastic pipeline (1), connecting the other end close to the pipeline with a positioning type micro initial connector (8), reserving a communication line, and correspondingly calibrating the length position of the positioning type leakage thin film induction belt (7) and the length position of the glass fiber reinforced plastic lining plastic pipeline (1) once in the winding process;

s2: then uniformly winding a layer of glass fiber on the glass fiber reinforced plastic lining plastic pipeline (1), covering the thin film induction belt, and fixing;

s3: adding a curing agent and cobalt salt into resin according to a certain proportion, and curing the glass fiber and the proportioned resin into a glass fiber reinforced plastic structure layer (2) with a certain thickness on an automatic winding machine according to requirements;

s4: connecting several sections of the manufactured glass fiber reinforced plastic lining pipes with lining plastic pipes in a welding mode;

s5: a circle of non-positioning type liquid leakage film induction belt (9) is wound at the welding seam (4) and is connected with a non-positioning type micro initial connector (10), and a communication line is reserved;

s6: on the surface of the non-positioning type weeping film induction belt (9), a layer of glass fiber is covered firstly, and then the glass fiber reinforced plastic structure layer (2) is formed by manually solidifying resin and glass fiber;

s7: the device is respectively connected with a positioning type leakage monitoring controller (11) and a multi-channel non-positioning type leakage monitoring controller (12) through communication lines;

s8: is connected with a data analysis and display terminal (13) through an RS485 interface on the controller and is connected with a pipeline control valve (5) through a relay interface on the controller.

Technical Field

The invention relates to the technical field of glass fiber reinforced plastic composite pipelines, in particular to an intelligent composite pipeline with a built-in liquid leakage film sensor and a manufacturing process thereof.

Background

A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations. The composite pipeline is a pipeline with a multilayer structure formed by compounding two layers (including two layers) or more of pipes through some processing technologies, wherein the glass fiber reinforced plastic composite pipeline is a common composite pipeline.

When the glass fiber reinforced plastic composite pipeline is used, a liquid leakage phenomenon easily occurs, the existing glass fiber reinforced plastic composite pipeline cannot monitor the liquid leakage state under the pipeline working condition in real time, the alarm cannot be given in time when the liquid leakage condition occurs, a pipeline valve is automatically closed, and the liquid leakage position cannot be accurately found, so that the intelligent composite pipeline with the built-in liquid leakage film sensor is urgently needed to be designed.

Disclosure of Invention

The invention provides an intelligent composite pipeline with a built-in liquid leakage film sensor and a manufacturing process thereof, aiming at overcoming the defects that the glass fiber reinforced plastic composite pipeline in the prior art cannot monitor the liquid leakage state under the pipeline working condition in real time, cannot give an alarm in time when the liquid leakage condition occurs, and cannot accurately find the liquid leakage position. The intelligent composite pipeline with the built-in liquid leakage film sensor and the manufacturing process thereof have the characteristics of reasonable process flow design, timely monitoring, pertinence, capability of timely alarming for liquid leakage conditions and accurately finding the position of the liquid leakage and the like.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a built-in liquid leaks film sensor's intelligent composite pipe, includes glass steel inside lining plastic conduit, glass steel inside lining plastic conduit includes glass steel structural layer and inside lining plastics anticorrosive coating, glass steel inside lining plastic conduit passes through the welding mode and connects, and its surface has a plurality of welding seams.

Preferably, the pipeline control valve is installed at the top of glass steel structural layer, the miniature terminal connector of locate mode is installed to the one end fixed mounting of glass steel inside lining plastic conduit, the miniature terminal connector of locate mode's one end electric connection has locate mode weeping film induction zone, the other end in locate mode weeping film induction zone has the miniature originated connector of locate mode through communication line electric connection, the miniature originated connector of locate mode is close to the one end of glass steel structural layer, welding seam department winding has non-locate mode weeping film induction zone, the one end in non-locate mode weeping film induction zone has the miniature originated connector of non-locate mode through communication line electric connection, the both ends of pipeline control valve have locate mode weeping monitoring control ware and multichannel non-locate mode weeping monitoring control ware through communication line electric connection respectively, locate mode weeping monitoring control ware and multichannel non-locate mode weeping monitoring control ware all through communication line electric connection And the data analysis and display terminal is provided.

Preferably, the positioning type weeping film induction belt is of a four-wire structure and comprises two induction circuits and two conduction circuits, and the non-positioning type weeping film induction belt is of a two-wire structure and comprises two induction circuits.

Preferably, the positioning type micro terminal connector is in a film shape and is arranged between the double-layer pipes.

Preferably, the positioning type leakage thin film induction belt is spirally wound on the surface of the glass fiber reinforced plastic lining plastic pipeline.

Preferably, the positioning type leakage monitoring controller and the multi-channel non-positioning type leakage monitoring controller are connected with the data analysis and display terminal through RS485 interfaces, and the positioning type leakage monitoring controller and the multi-channel non-positioning type leakage monitoring controller are connected with the pipeline control valve through relay interfaces.

Preferably, the manufacturing process of the intelligent composite pipe with the built-in liquid leakage film sensor comprises the following steps:

s1: firstly, fixing a positioning type micro terminal connector at one end of a glass fiber reinforced plastic lining plastic pipeline, then connecting the positioning type micro terminal connector with one end of a positioning type leakage thin film induction belt, starting an automatic winding machine to enable the positioning type leakage thin film induction belt to be spirally wound on the surface of the glass fiber reinforced plastic lining plastic pipeline, connecting the other end close to the pipeline with a positioning type micro starting connector, reserving a communication line, and correspondingly calibrating the length position of the positioning type leakage thin film induction belt and the length position of the glass fiber reinforced plastic lining plastic pipeline at one time in the winding process;

s2: then winding a layer of glass fiber on the glass fiber reinforced plastic lining plastic pipeline uniformly, covering the thin film induction belt and fixing;

s3: adding a curing agent and cobalt salt into resin according to a certain proportion, and curing the glass fiber and the proportioned resin into a glass fiber reinforced plastic structure layer with a certain thickness on an automatic winding machine according to requirements;

s4: connecting several sections of the manufactured glass fiber reinforced plastic lining pipes with lining plastic pipes in a welding mode;

s5: winding a circle of non-positioning type liquid leakage film induction belt at the welding seam, connecting the non-positioning type liquid leakage film induction belt with the non-positioning type micro initial connector, and reserving a communication line;

s6: on the surface of the non-positioning type leakage film induction belt, a layer of glass fiber is covered firstly, and then a glass fiber reinforced plastic structure layer is formed by manually solidifying resin and the glass fiber;

s7: the device is connected with a positioning type leakage monitoring controller and a multi-channel non-positioning type leakage monitoring controller through communication wires respectively;

s8: the controller is connected with the data analysis and display terminal through an RS485 interface on the controller and is connected with the pipeline control valve through a relay interface on the controller.

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

1. the composite pipeline is internally provided with the film-shaped leakage sensor, has unique structural advantages, and can realize hardware layout and development of the intelligent pipeline on the basis of not influencing various performances of the pipeline;

2. the leakage state of the pipeline under the working condition can be monitored in real time, an alarm is given when leakage occurs, and a pipeline valve is automatically closed in time;

3. different leakage monitoring sensors and monitoring mechanisms are adopted for the positions of the welding seams of the continuous pipe part and the pipeline, so that the monitoring is more pertinent on the premise of saving the economic cost;

4. the leakage induction belt made of different materials can monitor various liquids such as water, acid-base corrosive solution, oil and the like according to media in the pipeline.

Drawings

FIG. 1 is a structural view of a glass fiber reinforced plastic lined plastic pipe;

fig. 2 is a structure diagram of an intelligent composite pipeline with a built-in liquid leakage film sensor.

Reference numbers in the figures: 1. a glass fiber reinforced plastic lining plastic pipeline; 2. a glass fiber reinforced plastic structural layer; 3. a plastic anticorrosive layer is lined; 4. welding seams; 5. a pipeline control valve; 6. a positioning type micro terminal connector; 7. a positioning type leakage film induction belt; 8. a positioning type micro initial connector; 9. a non-positioning type leakage film induction belt; 10. a non-positioning type mini start connector; 11. a positioning type leakage monitoring controller; 12. a multi-channel non-positioning leakage monitoring controller; 13. and the data analysis and display terminal.

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.

Referring to fig. 1-2, the present invention provides a technical solution: an intelligent composite pipeline with a built-in liquid leakage film sensor comprises a glass fiber reinforced plastic lining plastic pipeline 1, wherein the glass fiber reinforced plastic lining plastic pipeline 1 comprises a glass fiber reinforced plastic structure layer 2 and a lining plastic anticorrosive layer 3, the glass fiber reinforced plastic structure layer 2 is formed by solidifying glass fibers and resin, the glass fiber reinforced plastic lining plastic pipeline 1 is connected in a welding mode, a plurality of welding seams 4 are arranged on the surface of the glass fiber reinforced plastic lining plastic pipeline 1, a pipeline control valve 5 is installed at the top of the glass fiber reinforced plastic structure layer 2, a positioning type micro terminal connector 6 is fixedly installed at one end of the glass fiber reinforced plastic lining plastic pipeline 1, a positioning type liquid leakage film induction belt 7 is electrically connected to one end of the positioning type micro terminal connector 6, the positioning type liquid leakage film induction belt 7 is of a four-line structure and comprises two induction circuits and two conduction circuits, and the positioning type liquid leakage film induction belt 7 is, the other end of the positioning type liquid leakage film induction belt 7 is electrically connected with a positioning type micro initial connector 8 through a communication line, the positioning type micro initial connector 8 is close to one end of the glass reinforced plastic structure layer 2, the positioning type micro terminal connector 6 is a film and is arranged between the double-layer pipelines, a non-positioning type liquid leakage film induction belt 9 is wound at the welding line 4, the non-positioning type liquid leakage film induction belt 9 is of a double-line structure and comprises two induction circuits, base materials of the positioning type liquid leakage film induction belt 7 and the non-positioning type liquid leakage film induction belt 9 are made of glass fiber similar to that used for glass reinforced plastic molding, one end of the non-positioning type liquid leakage film induction belt 9 is electrically connected with a non-positioning type micro initial connector 10 through the communication line, two ends of the pipeline control valve 5 are respectively electrically connected with a positioning type liquid leakage monitoring controller 11 and a multi-channel non-positioning type liquid leakage monitoring controller 12 through the communication line, the positioning type leakage monitoring controller 11 and the multichannel non-positioning type leakage monitoring controller 12 are electrically connected with a data analysis and display terminal 13 through communication wires, the positioning type leakage monitoring controller 11 and the multichannel non-positioning type leakage monitoring controller 12 are connected with the data analysis and display terminal 13 through RS485 interfaces, and the positioning type leakage monitoring controller 11 and the multichannel non-positioning type leakage monitoring controller 12 are connected with the pipeline control valve 5 through relay interfaces.

A manufacturing process of an intelligent composite pipeline with a built-in liquid leakage film sensor comprises the following steps:

s1: firstly, fixing a positioning type micro terminal connector 6 at one end of a glass fiber reinforced plastic lining plastic pipeline 1, then connecting the positioning type micro terminal connector with one end of a positioning type weeping film induction belt 7, starting an automatic winding machine to enable the positioning type weeping film induction belt 7 to be spirally wound on the surface of the glass fiber reinforced plastic lining plastic pipeline 1, connecting the positioning type micro terminal connector with the positioning type micro initial connector 8 at the other end close to the pipeline, reserving a communication line, and correspondingly calibrating the length position of the positioning type weeping film induction belt 7 and the length position of the glass fiber reinforced plastic lining plastic pipeline 1 at one time in the winding process;

s2: then a layer of glass fiber is uniformly wound on the glass fiber reinforced plastic lining plastic pipeline 1 to cover the thin film induction belt for fixing;

s3: adding a curing agent and cobalt salt into resin according to a certain proportion, and curing the glass fiber and the proportioned resin into a glass fiber reinforced plastic structure layer 2 with a certain thickness on an automatic winding machine according to requirements;

s4: connecting several sections of the manufactured glass fiber reinforced plastic lining pipes with lining plastic pipes in a welding mode;

s5: winding a circle of non-positioning type liquid leakage film induction belt 9 at the welding seam 4, connecting the non-positioning type liquid leakage film induction belt with a non-positioning type micro initial connector 10, and reserving a communication line;

s6: on the surface of the non-positioning type weeping film induction belt 9, a layer of glass fiber is covered firstly, and then the glass fiber reinforced plastic structure layer 2 is formed by manually solidifying resin and glass fiber;

s7: the device is respectively connected with a positioning type leakage monitoring controller 11 and a multi-channel non-positioning type leakage monitoring controller 12 through communication lines;

s8: is connected with the data analysis and display terminal 13 through an RS485 interface on the controller and is connected with the pipeline control valve 5 through a relay interface on the controller.

The working principle is as follows:

the non-positioning type liquid leakage film induction belt 9 and the controller can monitor the liquid leakage state of the measured part of the pipeline in real time through the induction circuit with a double-line structure, the positioning type liquid leakage film induction belt 7 and the controller can monitor the liquid leakage state and the specific liquid leakage position of the pipeline in real time through the four-line induction circuit and the conduction circuit, and the liquid leakage of the continuous pipe part can occur only under the condition that the external factors or the local aging of the pipeline are considered as the possibility that the liquid leakage exists at the position of the welding seam 4 of the glass fiber reinforced plastic lining plastic pipeline 1 under the working condition. Therefore, on the premise of considering economic cost, the product is to arrange a non-positioning type leakage thin film induction belt 9 at each welding seam 4 position and spirally wind a positioning type leakage thin film induction belt 7 in a continuous pipe part.

When liquid leakage occurs at the position of a welding seam 4, the resistance of a sensing circuit of a non-positioning type liquid leakage thin film sensing belt 9 at the position can be changed, an alarm prompt is given at a corresponding channel on a multi-channel non-positioning type liquid leakage monitoring controller 12, a curve correspondingly displayed by the channel can be different at a data analysis and display terminal 13, meanwhile, the multi-channel non-positioning type liquid leakage monitoring controller 12 sends an alarm signal to a pipeline control valve 5 at the upstream of a glass fiber reinforced plastic lining plastic pipeline 1, the glass fiber reinforced plastic lining plastic pipeline 1 is controlled to be closed, and the position of the corresponding welding seam 4 is overhauled;

when the continuous pipe part has leakage, the sensing circuit of the positioning type leakage thin film sensing belt 7 at the leakage position has resistance change, an alarm prompt is provided on the positioning type leakage monitoring controller 11, the specific leakage position of the pipeline is displayed at the data analysis and display terminal 13 according to a preset calibration coefficient (the position of the sensing belt is converted into the corresponding pipeline position), and meanwhile, the positioning type leakage monitoring controller 11 sends an alarm signal to the pipeline control valve 5 at the upstream of the glass fiber reinforced plastic lining plastic pipeline 1 to control the closing of the glass fiber reinforced plastic lining plastic pipeline 1 and overhaul the leakage position.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.