Fuel gas PE (Poly Ethylene) pipeline with embedded passive RFID (Radio Frequency Identification Device)

Abstract

The invention relates to the technical field of gas pipelines, in particular to a gas PE (polyethylene) pipeline with an embedded passive RFID (radio frequency identification device), which comprises a PE pipeline, at least one open bump for embedding and mounting the passive RFID, and a packaging cover plate detachably mounted at the opening of the open bump; the protection part comprises two ceramic protection covers which are detachably installed on the PE pipeline and located outside the open protruding block, and at least two drying units are arranged in the two ceramic protection covers; positioning and information management of the gas pipeline can be facilitated through the arranged embedded RFID, metal ions in soil can be prevented from permeating inwards through the arranged protection part, then the long-acting reliability of the internal passive RFID 7 can be guaranteed, and the external protection performance can be improved; in addition, the arranged drying units can sequentially absorb humid air in the ceramic protective cover at intervals, erosion of the humid soil atmosphere to the RFID is reduced, the overall moisture absorption period can be prolonged, the stable moisture absorption efficiency can be kept, and the device is suitable for long-term moisture prevention.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas pipelines, in particular to a gas PE pipeline embedded with passive RFID. BACKGROUND

[0002] With the large-scale construction of urban gas transmission pipeline network, polyethylene (PE) pipelines have been widely used in gas transmission field due to their advantages of light weight, corrosion resistance, and convenient construction; however, as non-metallic materials, PE pipelines have no obvious electrical difference with soil in terms of physical properties, which leads to the complete failure of traditional pipeline detection methods based on electromagnetic induction principle, bringing great challenges to the later maintenance, repair and fault location of the pipeline.

[0003] Therefore, the industry considers installing wireless radio frequency devices (RFID) on PE gas pipelines to realize the positioning and information management of PE gas pipelines, but there are still problems: the RFID lacks effective protection, the pipeline laying environment of deep burial construction is mostly humid soil, the humid soil is easy to erode and damage the RFID, and the humid atmosphere will promote the penetration of metal ions in the soil, causing the RFID to short circuit and damage prematurely, and the unprotected parts are easy to be damaged by construction machinery during subsequent operations.

[0004] Therefore, it is necessary to improve the external protection performance of the embedded RFID and reduce the erosion of the humid atmosphere of the soil on the RFID to meet the reliable application of the RFID in the whole life cycle management of the gas pipeline; in view of this, we propose a gas PE pipeline embedded with passive RFID. SUMMARY

[0005] The purpose of the present application is to solve the problems mentioned in the background art, and to provide a gas PE pipeline embedded with passive RFID.

[0006] In order to solve the above technical problems, the present application adopts the following technical solutions: A gas PE pipeline embedded with passive RFID, comprising: A PE pipeline, at least one open protrusion for embedding and installing passive RFID is provided, and a sealing cover plate is detachably installed at the open part of the open protrusion; A protection part, comprising two ceramic protection covers which are detachably installed on the PE pipeline and located outside the open protrusion, at least two drying units are arranged in the two ceramic protection covers, and the drying units are used for sequentially and intervally absorbing humid gas in the ceramic protection covers.

[0007] Preferably, the embedded position of the passive RFID is arranged in parallel with the axis of the PE pipeline.

[0008] Preferably, the passive RFID is arranged at intervals along the PE pipeline, and the interval between adjacent passive RFIDs is not greater than 5m.

[0009] Preferably, ring grooves for rotatably mounting the gear ring are arranged on the PE pipeline and located on both sides of the open protrusion.

[0010] Preferably, positioning blocks for clamping on the open protrusion are arranged at the inner wall of at least one side of the ceramic protective cover, and two supporting blocks are further arranged at the inner wall of the ceramic protective cover. The supporting blocks are provided with horizontal grooves corresponding to the position of the gear ring.

[0011] Preferably, gear plates are slidably mounted in the horizontal grooves, and the gear plates are engaged with the gear ring.

[0012] Preferably, water-absorbing and swelling rubber blocks are mounted in the horizontal grooves and located on either side of the gear plate, and the water-absorbing and swelling rubber blocks are used to press the gear plate to move along the horizontal grooves after water absorption and swelling.

[0013] Preferably, the drying unit comprises a hollow rod detachably mounted in the ceramic protective cover, and the hollow rod is provided with moisture-absorbing holes. A sealing cover is rotatably mounted outside the hollow rod, and the sealing cover is provided with a moisture-absorbing opening. When the sealing cover rotates on the hollow rod, the opening and closing degree of the moisture-absorbing opening and the moisture-absorbing holes changes. Transmission gears are fixedly connected to both ends of the sealing cover, and the transmission gears are engaged with the gear ring.

[0014] Preferably, the hollow rod is filled with moisture-absorbing resin filler.

[0015] Preferably, the opening and closing degree of the moisture-absorbing holes of each drying unit is positively correlated with the swelling distance of the water-absorbing and swelling rubber blocks. When the water-absorbing and swelling rubber blocks swell after absorbing moisture, a plurality of drying units are sequentially opened and closed to 100% for absorbing moisture.

[0016] Compared with the prior art, the beneficial effects of the present application are: The embedded passive RFID gas PE pipeline can facilitate the positioning and information management of the gas pipeline through the embedded RFID, and the protective part can isolate the inward penetration of metal ions in the soil, thereby facilitating the long-term reliability of the internal passive RFID 7 and improving the external protection performance. In addition, the drying unit can sequentially and intermittently absorb the moisture in the ceramic protective cover, reducing the erosion of the soil moisture on the RFID, which is beneficial to prolong the overall moisture absorption period and maintain stable moisture absorption efficiency, and is suitable for long-term moisture protection. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings used in the description of the application form a part of this specification. In addition to describing application embodiments in the detailed description which follows, embodiments of the application are illustrated in the accompanying drawings by various figures. It is to be understood that the drawings are not to scale in all instances. In the drawings: Figure 1 It is an overall structural schematic diagram of the present application; Figure 2 It is one of the exploded views of the overall structure of the present application; Figure 3 It is the second exploded view of the overall structure of the present application; Figure 4 It is a cross-sectional view of the overall structure of the present application; Figure 5 It is a schematic diagram of the PE pipe and passive RFID installation of the present application; Figure 6 It is a schematic diagram of the PE pipe of the present application; Figure 7 It is a schematic diagram of the drying unit of the present application; Figure 8 It is an exploded view of the drying unit of the present application.

[0018] The meanings of various reference numerals in the drawings are as follows: 1, PE pipe; 101, ring groove; 11, open protrusion; 2, ceramic protective cover; 21, supporting block; 211, horizontal groove; 22, positioning clamping block; 3, drying unit; 31, hollow rod; 311, moisture absorption hole; 32, sealing cover; 321, moisture absorption opening; 33, transmission gear; 4, gear ring; 5, gear plate; 6, water absorption and expansion rubber block; 7, passive RFID; 8, packaging cover plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] Please refer to Figures 1-8 The above technical solutions are described in detail by the following embodiments: The gas PE pipe with embedded passive RFID in the present embodiment comprises: The PE pipe 1, such as Figures 1-3As shown in the structure, in order to realize the positioning and information management of the gas pipeline, a set of open protrusions 11 are arranged symmetrically above and below along the wall of the PE pipeline 1 and in parallel with the axis, a passive RFID 7 is installed in the open protrusion 11 at the upper end, and a sealing cover plate 8 is detachably installed at the opening of the open protrusion 11 as a seal, the wireless radio frequency device is arranged at a distance of not more than 5m along the PE pipeline 1, which can form a continuous pipeline positioning and information diagram.

[0021] The passive RFID 7 tag in the embodiment stores an encoding associated with the attribute information of the gas PE pipeline, and the attribute information at least includes the production date, the pipe diameter, the pressure grade, the GPS coordinate, and the working frequency of the passive RFID 7 tag in the embodiment is 83.0kHz, which is adapted to the radio frequency signal of the detector, so that the detector can activate the passive RFID 7 when emitting an 83.0kHz radio frequency signal, receive the signal carrying the encoding reflected by the passive RFID 7, and complete information collection, which belongs to the prior art application of the passive RFID 7, so it is not explained and described too much.

[0022] Considering that the sealing of the open protrusion 11 only adds the sealing cover plate 8 is limited, and because the material of the PE pipeline 1 cannot isolate the problem of metal ion penetration in the soil, the embodiment is provided with a protection part, including Figures 1-4 As shown, the two ceramic protective covers 2 are detachably installed on the PE pipeline 1 and located outside the open protrusion 11, and the ceramic protective cover 2 can isolate the penetration of metal ions in the soil and protect the long-term effectiveness of the internal passive RFID 7.

[0023] However, considering that there is a splicing joint between the detachably installed ceramic protective covers 2, and the splicing joint is prone to leakage, which causes the phenomenon of moisture gas erosion and damage to the inside, therefore, the embodiment is provided with Figure 3 、 Figure 4 As shown in the structure, two drying units 3 are arranged in the two ceramic protective covers 2, and the two drying units 3 are sequentially and intermittently opened, and the two drying units 3 are sequentially and intermittently opened, respectively.

[0024] It needs to be explained that enabling the two drying units 3 to absorb moisture independently and sequentially is necessary and is an important feature for ensuring a dry atmosphere for long-term underground installation. The advantage of using the drying units 3 in batches is that it can extend the overall moisture absorption cycle and maintain stable moisture absorption efficiency, which is especially suitable for sealed spaces such as outdoor sleeves that require long-term moisture protection. Compared to when both drying units 3 are used simultaneously, all drying units 3 absorb moisture at the same time and reach moisture saturation at the same time, thus losing their moisture protection ability, using them in batches is equivalent to extending the single moisture protection time several times through a "relay" method, which can resist long-term outdoor moisture penetration for a longer period of time. In addition, the batch moisture absorption setting can maintain stable moisture absorption efficiency, extend the replacement cycle, and avoid the situation where all units need to be replaced at once once they are saturated.

[0025] To achieve the function of activating drying unit 3 in batches, such as Figures 3-6 The structure shown has a gear ring 4 rotatably installed on the PE pipe 1 in the annular groove 101 located on both sides of the open protrusion 11. The positioning block 22 at the inner wall of the ceramic protective cover 2 at the bottom is engaged with the open protrusion 11 to complete the positioning. At the same time, two support blocks 21 are also provided at the inner wall of the ceramic protective cover 2. The support blocks 21 have horizontal grooves 211 corresponding to the position of the gear ring 4. Meanwhile, a drying unit 3 is installed at the inner wall of the ceramic protective cover 2 at the splice joint to receive the infiltrated moisture at the splice joint.

[0026] Specifically, a gear plate 5 is slidably installed in the horizontal groove 211. The gear plate 5 meshes with the gear ring 4. In order to achieve horizontal movement, a water-absorbing and expanding rubber block 6 is installed in the horizontal groove 211 and located on one side of the gear plate 5. The water-absorbing and expanding rubber block 6 can squeeze the gear plate 5 to move along the horizontal groove 211 after absorbing water and expanding, thereby driving the gear ring 4 to rotate. The rotation of the gear ring 4 drives the drying unit 3 to open and release the drying channel in sequence to absorb moisture.

[0027] like Figure 7 , Figure 8 As shown in the structure, in this embodiment, the drying unit 3 includes a hollow rod 31 that is bonded and fixedly installed inside the ceramic protective cover 2. The hollow rod 31 is provided with a moisture absorption hole 311, and the hollow rod 31 is filled with a moisture-absorbing resin filler for moisture absorption. A sealing cover 32 is rotatably installed outside the hollow rod 31. In order to close or open the moisture absorption hole 311, the sealing cover 32 is provided with a moisture absorption opening 321.

[0028] The transmission gear 33 is fixedly connected to both ends of the sealing cover 32 and is engaged with the gear ring 4; by rotating the sealing cover 32 on the hollow rod 31, the opening and closing degree of the moisture absorption opening 321 and the moisture absorption hole 311 is changed, and the two drying units 3 are opened in sequence by the change of the opening and closing degree; the opening and closing degree of the moisture absorption hole 311 of the two drying units 3 in the embodiment is positively correlated with the expansion distance of the water absorption and expansion rubber block 6, that is, when the water absorption and expansion rubber block 6 is expanded by 30% due to moisture absorption, one drying unit 3 is opened and closed to 100% for absorbing moisture, and the other drying unit 3 is still closed to continuously absorb moisture; when the water absorption and expansion rubber block 6 continues to expand by 80% due to moisture absorption after the humidity of the internal environment rises, the second drying unit 3 is opened and closed to 100% to continue to absorb moisture, the moisture absorption operation is repeated, and thus long-term drying effect can be achieved.

[0029] It should be noted that if the embodiment of the present application involves directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0030] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A gas PE pipe with embedded passive RFID, characterized in that: The utility model relates to a kind of passive RFID embedding installation in PE pipeline, including: PE pipeline (1) is provided with at least one open protrusion (11) for embedding installation passive RFID (7), and the open protrusion (11) is detachably installed with encapsulation cover plate (8) at open place; Protection part includes two ceramic protective cover (2) that can be detachably installed on the PE pipeline (1) and located outside the open protrusion (11), and at least two drying units (3) are arranged in the two ceramic protective cover (2), and the drying unit (3) is used to sequentially interval absorption humid gas in the ceramic protective cover (2).

2. The gas PE pipe with embedded passive RFID according to claim 1, characterized in that: The embedding position of the passive RFID (7) is arranged in parallel with the axis of the PE pipeline (1).

3. The gas PE pipe with embedded passive RFID according to claim 2, characterized in that: The passive RFID (7) is arranged along the PE pipeline (1) with interval, and the interval between adjacent passive RFID (7) is not more than 5m.

4. The gas PE pipe in-line passive RFID tagged as claimed in claim 1, wherein: The ring groove (101) for rotatingly installing gear ring (4) is arranged on the PE pipeline (1) and located at both sides of the open protrusion (11).

5. The gas PE pipe with embedded passive RFID according to claim 4, characterized in that: The positioning clamping block (22) for clamping on the open protrusion (11) is arranged on the inner wall of at least one side of the ceramic protective cover (2), and two supporting blocks (21) are further arranged on the inner wall of the ceramic protective cover (2). The horizontal groove (211) corresponding to the position of the gear ring (4) is arranged on the supporting block (21).

6. The gas PE pipe with embedded passive RFID according to claim 5, characterized in that: The gear plate (5) is slidingly installed in the horizontal groove (211), and the gear plate (5) is engaged with the gear ring (4).

7. The gas PE pipe with embedded passive RFID according to claim 6, characterized in that: The water-absorbing and swelling rubber block (6) is installed in the horizontal groove (211) and located at either side of the gear plate (5), and the water-absorbing and swelling rubber block (6) is used to extrude the gear plate (5) along the horizontal groove (211) after water absorption and swelling.

8. The gas PE pipe with embedded passive RFID according to claim 7, characterized in that: The hollow rod (31) detachably installed in the ceramic protective cover (2) is included in the drying unit (3), and the moisture-absorbing hole (311) is arranged on the hollow rod (31). The sealing cover (32) is rotatably installed outside the hollow rod (31), and the moisture-absorbing opening (321) is arranged on the sealing cover (32). When the sealing cover (32) rotates on the hollow rod (31), the opening and closing degree of the moisture-absorbing opening (321) and the moisture-absorbing hole (311) changes. The transmission gear (33) is fixedly connected to both ends of the sealing cover (32), and the transmission gear (33) is engaged with the gear ring (4).

9. The gas PE pipe with embedded passive RFID according to claim 8, characterized in that: The moisture-absorbing resin filler is filled in the hollow rod (31).

10. The gas PE pipe with embedded passive RFID according to claim 9, characterized in that: The opening and closing degree of the moisture-absorbing hole (311) of each drying unit (3) is positively correlated with the swelling distance of the water-absorbing and swelling rubber block (6). When the water-absorbing and swelling rubber block (6) absorbs moisture and swells, a plurality of drying units (3) are sequentially opened and closed to 100% for absorbing humid gas.

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