CN211624447U - Multifunctional double-wall glass fiber reinforced plastic pipeline - Google Patents
Multifunctional double-wall glass fiber reinforced plastic pipeline Download PDFInfo
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- CN211624447U CN211624447U CN201921638255.5U CN201921638255U CN211624447U CN 211624447 U CN211624447 U CN 211624447U CN 201921638255 U CN201921638255 U CN 201921638255U CN 211624447 U CN211624447 U CN 211624447U
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Abstract
The utility model discloses a multi-functional double-walled FRP pipe way, the outer tube of outside of tubes including inner tube, cover is equipped with the heat preservation between inner tube and the outer tube to double-walled pipe, be equipped with along inner tube length direction's seepage passageway between heat preservation and the inner tube, the outer wall intercommunication of seepage passageway and inner tube. The utility model has the advantages of simple structure, easy manufacture and low cost; the multifunctional water tank integrates the functions of double-wall structure, heat preservation, detection alarm, liquid leakage collection, positioning and the like.
Description
Technical Field
The utility model relates to a pipeline especially relates to a multi-functional double-walled FRP pipe way that waste liquid that produces was used when handling nuclear waste material.
Background
In the treatment of nuclear waste, large volumes of highly radioactive waste liquid are produced which need to be transported over long distances to specialized sewage treatment plants for special treatment. At present, the conveying pipeline is sometimes required to be laid on the ground and work in the environment below zero degree, and the traditional conveying pipeline is a single-wall pipe, so once leakage occurs, serious pollution is caused to the environment.
Therefore, there is a need for a safe and reliable nuclear waste disposal waste transport pipe that can be used in low temperature environments, and when a pipe leaks, can quickly detect and drain the leaking waste into a collection device.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a multifunctional double-wall fiber reinforced plastic pipeline which has the heat preservation function and can be used in a low-temperature environment; has double-wall structure, safe and reliable use and simple and efficient preparation method.
The technical scheme is as follows: the utility model discloses a multi-functional double-walled FRP pipe way, the outer tube of outside of tubes including inner tube, cover is equipped with the heat preservation between inner tube and the outer tube, be equipped with the seepage passageway along inner tube length direction between heat preservation and the inner tube, the outer wall intercommunication of seepage passageway and inner tube. The inner pipe and the outer pipe are made of glass fiber reinforced plastic materials, and the heat-insulating layer enables the pipeline to have heat-insulating performance and can be safely used in cold regions; the double-walled structure has improved the security performance, and the setting of passageway makes when the inner tube takes place the seepage, can make the seepage medium through the passageway drainage to collect the liquid device in. The direct discharge when the single-tube structure leaks is avoided, and the pollution to soil and environment is avoided; the leakage channel is communicated with the outer wall of the inner pipe, so that leaked media can enter the leakage channel.
Further, the double-walled glass fiber reinforced plastic pipeline also comprises a liquid outlet, and the liquid outlet penetrates through the outer pipe wall and the heat insulation layer and is communicated with the leakage channel. The outer pipe wall is provided with a liquid outlet communicated with the leakage channel, and leakage media in the channel can be led out through the liquid outlet and collected into a special collecting device.
In order to facilitate the discharge of leakage liquid in the leakage channel, the liquid discharge port is positioned at the lower part of the leakage channel, and the direction of the liquid discharge port is vertical to the leakage channel.
Preferably, the heat preservation layer is made of polyurethane foam material, and the leakage channel is located below the outer wall of the inner pipe. The heat-insulating layer is made of foaming materials, has a porous structure, has heat-insulating property and can also be permeated with water; the interface between the polyurethane foam heat-insulating layer and the outer surface of the inner pipe of the double-wall pipe can also be permeable; the channels are thus arranged below the outer wall of the inner tube, into which channels the medium leaking out laterally or upwards can also flow.
Preferably, the leak channel is in close proximity to the outer wall of the inner tube.
Preferably, a probe for detecting liquid is arranged at the liquid discharge port, so that leakage can be quickly found and an alarm can be given; the leakage fluid dram and the sealed connection of collection liquid device, the medium of pipe intracavity seepage passes through the leakage fluid dram and gets into collection liquid device, has avoided the single tube structure direct emission when taking place the seepage, causes the pollution to soil and environment.
When the conveying medium in the inner tube leaks, the conveying medium flows to the liquid discharge port through the channel, the probe sends an alarm signal after detecting, the leakage can be found in the first time, and the leakage interval can be positioned, so that the rapid response is facilitated. When the alarm signal is received, the conveying can be stopped in time, and a large amount of leakage is avoided. The detection probe can adopt light alarm, sound alarm or acousto-optic combined alarm, and can also be connected with a control system, and the pumping of the medium is stopped by adopting a local power-off mode. The alarm signal can be transmitted to a control system of a central control room in a wired or wireless mode, so that the leakage can be found remotely and at the first time.
Preferably, fixed plugging plates are arranged at two ends of the heat-insulating layer. The plugging plate can firmly fix the inner pipe and the outer pipe and prevent the inner pipe and the outer pipe from moving or twisting. And the overflow of the heat-insulating material can be avoided when the heat-insulating layer is filled.
Preferably, the liquid collecting device is further included and is in sealed connection with the liquid outlet. The setting of collection liquid device makes the medium that flows to the leakage fluid dram can directly be collected, conveniently retrieves, avoids the pollution to environment such as soil, atmosphere.
Preferably, the inner wall and the outer wall of the inner pipe and the inner wall of the outer pipe are provided with anticorrosive coatings. The setting of anticorrosive coating can effectively improve the life of double-walled pipe.
The utility model discloses a preparation method of multi-functional double-walled FRP pipe way, including the following step:
(1) manufacturing an inner pipe and an outer pipe, sleeving the outer pipe outside the inner pipe, and arranging a mold of a leakage channel between the inner pipe and the outer pipe so that the mold is in contact with the outer wall of the inner pipe;
(2) fixing plugging plates are arranged at two ends of the tube cavity between the inner tube and the outer tube, and filling holes and exhaust holes are respectively arranged on the plugging plates;
(3) injecting the foaming material from the injection hole, and drawing out the channel mould after foaming. After the foaming raw material is injected, the foaming raw material is foamed, the foaming material can fill the exhaust hole and the injection hole and overflow, and the overflow part is trimmed after foaming is finished.
Furthermore, the preparation method also comprises the step of forming a liquid outlet on the wall of the outer pipe, so that the liquid outlet is communicated with the leakage channel.
The utility model discloses the principle: the multifunctional double-wall glass steel pipeline of the utility model has the advantages that the inner pipe is used for conveying media, and the heat preservation layer is arranged to ensure that the multifunctional double-wall glass steel pipeline can be safely used at low temperature; the channel is communicated with the outer wall of the inner pipe, so that the leakage medium can flow into the channel; the setting of flowing back mouth is used for collecting the medium of seepage to and the measuring probe of flowing back mouth department can in time report to the police and fix a position.
When the multifunctional double-wall glass fiber reinforced plastic pipe is used, a plurality of multifunctional double-wall glass fiber reinforced plastic pipes are connected, the inner pipes of the double-wall pipes are connected in a socket joint glue joint mode, and the outer pipes are connected in a flat-end hand-pasted butt joint mode; the assembly is convenient, safe and reliable when in use;
the leakage channels in the adjacent pipelines are communicated with each other; the liquid outlet can be arranged on the outer pipe at a certain distance, or on each section of pipeline; the two ends of the pipeline which is connected are connected with the equipment by flanges, and the two ends of the leakage channel are plugged at the moment.
Has the advantages that: compared with the prior art:
(1) the utility model has a double-wall structure, when the inner pipe leaks, the leaked liquid can flow into the collecting device through the leakage channel and the liquid outlet, and the environment is not affected;
(2) the heat-insulating layer is filled between the double-wall pipes, so that the double-wall pipes have a heat-insulating function and can normally run outdoors in cold regions; the thickness of the heat-insulating layer can be determined according to the heat-insulating requirement;
(3) the double-wall pipe bonds the inner pipe and the outer pipe into a whole through polyurethane, so that the internal pressure resistance and external pressure resistance of the double-wall pipe can be effectively improved;
(4) a detection alarm probe is arranged at the liquid discharge port, so that leakage can be found at the first time, and a leakage interval is positioned;
(5) the utility model has the advantages of simple structure, easy manufacture and low cost; the multifunctional water tank integrates the functions of double-wall structure, heat preservation, detection alarm, liquid leakage collection, positioning and the like.
Drawings
Fig. 1 is a schematic structural view of the multifunctional double-wall glass fiber reinforced plastic pipeline of the present invention.
Detailed Description
Fig. 1 shows a schematic structural diagram of a multifunctional double-walled glass fiber reinforced plastic pipeline of the present invention, which includes an inner tube 1 and an outer tube 2 sleeved outside the inner tube 1, wherein the inner tube 1 and the outer tube 2 are made of glass fiber reinforced plastic, the inner wall and the outer wall of the inner tube 1 and the inner wall of the outer tube 2 are provided with anti-corrosion layers, a heat preservation layer 3 is arranged between the inner tube 1 and the outer tube 2, the heat preservation layer 3 is made of polyurethane foam, and both ends of the heat preservation layer 3 are provided with fixed plugging plates 7; a leakage channel 4 is arranged between the heat-insulating layer 3 and the inner pipe 1 along the length direction of the inner pipe 1, the leakage channel 4 is positioned at the lower part of the inner pipe 1, and the leakage channel 4 is tightly attached to and communicated with the outer wall of the inner pipe 1; a liquid outlet 5 communicated with the leakage channel 4 is arranged on the wall of the outer pipe 2, the liquid outlet 5 penetrates through the wall of the outer pipe 2 and the heat preservation layer 3 and is positioned at the lower part of the leakage channel 4, and the direction of the liquid outlet 5 is vertical to the leakage channel 4; the liquid outlet 5 is provided with a detection probe 6, the liquid outlet 5 is hermetically connected with a liquid collecting device 9, and the detection probe 6 is connected with a controller 8.
The pipeline of the utility model is of a double-wall structure, the space between the inner pipe 1 and the outer pipe 2 is filled with foamed polyurethane heat-insulating material, and a leakage channel 4 is reserved on the outer wall of the double-wall pipe interlayer close to the inner pipe 1; the bottom of the double-wall pipe is provided with a liquid outlet 5, and the preparation method comprises the following steps:
(1) manufacturing an inner pipe 1 and an outer pipe 2, wherein the materials are glass fiber reinforced plastics;
(2) sleeving the manufactured outer pipe 2 on the inner pipe 1, extending a part tightly attached to the outer wall of the inner pipe 1 into a leakage channel mold, clamping plugging plates 7 at two ends of a pipe cavity between the inner pipe 1 and the outer pipe 2, bonding and fixing the plugging plates 7, and respectively arranging polyurethane foaming injection holes 10 and exhaust holes 11 on the plugging plates 7 at the two ends;
(3) injecting a double-component polyurethane foaming raw material into the double-wall pipe clamping layer, foaming the foaming raw material, and filling the vent hole and the injection hole with the foaming material and slightly overflowing; the foaming raw materials are prior art and are not described in detail herein;
(4) after the polyurethane is solidified, trimming the overflowing part, drawing out the mould, and forming a leakage channel 4 in the tube cavity;
(5) and finally, a liquid outlet 5 is arranged at the bottom of the double-wall pipe to be communicated with the leakage channel 4.
When the utility model is used, a plurality of multifunctional double-wall pipes are connected, the inner pipe adopts a socket joint connection mode, and the outer pipe adopts a connection mode of butt joint by hand paste at the flat end; the leakage passages 4 in the adjacent pipelines are communicated with each other; the liquid discharge port 5 can be arranged on the outer pipe at equal intervals or at non-equal intervals, and can also be arranged on each section of pipeline, and each liquid discharge port 5 is hermetically connected with the liquid collecting device 9. When the multifunctional double-wall glass steel pipeline works normally, the inner pipe 1 of the multifunctional double-wall glass steel pipeline conveys a medium; after the seepage took place, in the medium got into seepage passageway 4 to flow to leakage fluid dram 5, the medium can wet the test probe 6 that sets up in leakage fluid dram 5 department, and test probe 6 can send alarm signal to transmit alarm signal to controller 8 through wired or wireless mode, the very first time discovery seepage of being convenient for, when test probe 6 sent the warning, can in time stop carrying the medium, avoided a large amount of seepage. And the operator can confirm the leakage interval according to the position of the detection probe 6, so that the maintenance and the replacement are convenient.
Claims (8)
1. A multifunctional double-wall glass fiber reinforced plastic pipeline is characterized in that: including inner tube (1), cover outer tube (2) outside inner tube (1), be equipped with heat preservation (3) between inner tube (1) and outer tube (2), be equipped with between heat preservation (3) and inner tube (1) along inner tube (1) length direction's seepage passageway (4), seepage passageway (4) and the outer wall intercommunication of inner tube (1).
2. The multifunctional double-walled FRP pipe of claim 1, wherein: the leakage-proof device is characterized by further comprising a liquid outlet (5), wherein the liquid outlet (5) penetrates through the wall of the outer pipe (2) and the heat-insulating layer (3) and is communicated with the leakage channel (4).
3. The multifunctional double-walled FRP pipe of claim 1, wherein: the heat-insulating layer (3) is a polyurethane foaming heat-insulating layer, and the leakage channel (4) is positioned at the lower part of the outer wall of the inner pipe (1).
4. The multifunctional double-walled FRP pipe of claim 1, wherein: and plugging plates (7) are arranged at two ends of the heat-insulating layer (3).
5. The multifunctional double-walled FRP pipe of claim 1, wherein: the liquid collecting device (9) is further included, and the liquid collecting device (9) is connected with the liquid outlet (5) in a sealing mode.
6. The multifunctional double-walled FRP pipe of claim 1, wherein: and the inner wall and the outer wall of the inner pipe (1) and the inner wall of the outer pipe (2) are provided with anticorrosive coatings.
7. The multifunctional double-walled FRP pipe of claim 2, wherein: the liquid outlet (5) is positioned at the lower part of the leakage channel (4), and the direction of the liquid outlet (5) is vertical to the leakage channel (4).
8. The multifunctional double-walled FRP pipe of claim 2, wherein: and a detection probe (6) is arranged at the liquid outlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921638255.5U CN211624447U (en) | 2019-09-27 | 2019-09-27 | Multifunctional double-wall glass fiber reinforced plastic pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921638255.5U CN211624447U (en) | 2019-09-27 | 2019-09-27 | Multifunctional double-wall glass fiber reinforced plastic pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715119A (en) * | 2019-09-27 | 2020-01-21 | 南京新核复合材料有限公司 | Multifunctional double-wall glass fiber reinforced plastic pipeline and preparation method thereof |
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- 2019-09-27 CN CN201921638255.5U patent/CN211624447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715119A (en) * | 2019-09-27 | 2020-01-21 | 南京新核复合材料有限公司 | Multifunctional double-wall glass fiber reinforced plastic pipeline and preparation method thereof |
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