CN211825472U - Pipeline inside lining repair material pressure resistance test device - Google Patents
Pipeline inside lining repair material pressure resistance test device Download PDFInfo
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- CN211825472U CN211825472U CN202020381102.3U CN202020381102U CN211825472U CN 211825472 U CN211825472 U CN 211825472U CN 202020381102 U CN202020381102 U CN 202020381102U CN 211825472 U CN211825472 U CN 211825472U
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Abstract
The utility model provides a pipeline inside lining repair material withstand voltage test device, place, one end is sealed and the other end is equipped with the open-ended test tube including the level, this test tube can dismantle sealed end cover at its opening part, and the test tube is provided with the intake pipe that is used for external air supply and is used for detecting the manometer of the inside gas pressure of test tube, several test punch combination has been seted up on the test tube pipe wall. A pipeline inside lining repair material withstand voltage test device in, seted up the test punch combination of several on the test pipe wall, be convenient for collect the withstand voltage data value of repair material in different apertures to obtain the withstand voltage value data of protection film of the different areas different thickness of this repair material, repair for the spraying of the not equidimension area of corrosion of pipeline inside lining and provide the data selection support.
Description
Technical Field
The utility model belongs to the pipeline construction field especially relates to a pipeline inside lining repair material withstand voltage test device.
Background
After the pipeline is used for a long time, the pipeline lining can be damaged locally due to corrosion of conveyed substances, and then the conveying function and the conveying quality of the pipeline are influenced. The mode is repaired to common old pipeline inside lining does, is less than the HDPE pipe of pipeline internal diameter with the external diameter, uses the tractor to penetrate old pipeline with the HDPE pipe, then rises the HDPE pipe and pastes on the inside lining of old pipeline, with the inseparable cooperation of old pipeline, forms "pipe in pipe" composite construction, consequently this pipe in pipe old pipeline repair technique causes the very big rising of cost.
Along with the intensive research of technical staff, also can adopt pipeline repair material such as polyurethane material to repair alone pipeline corrosion department now, promptly with repair material emulsion spraying in pipeline inside lining damaged department to guarantee certain spraying thickness, repair material fast curing forms the protection film of certain thickness in pipeline damaged department, and then realizes the repair to pipeline inside lining damaged department, this repair material brings the reduction of cost to pipeline inside lining repair mode. Because this protection film needs certain withstand voltage nature, simultaneously because the withstand voltage degree of the protection film that the same area of thickness is different, how to obtain the protection film withstand voltage value data of a plurality of different areas different thickness, for the operating personnel chooses for use corresponding protection film spraying thickness according to pipeline corrosion area size to become research and development subject of present research and development personnel.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a pipeline inside lining patching material withstand voltage test device to inspect pipeline patching material's resistance to pressure.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a pipeline inside lining repair material withstand voltage test device, places including the level, one end seals and the other end is equipped with open-ended test tube, and this test tube can dismantle sealed there is the end cover at its opening part, and the test tube is provided with the intake pipe that is used for external air supply and is used for detecting the manometer of the inside gas pressure of test tube, the test tube wall is last to have seted up the experimental punch combination of several.
Furthermore, each test hole group comprises a plurality of test holes with different apertures, the number of the test holes in each test hole group is equal to that of the test holes in other test hole groups, the test holes are in one-to-one correspondence, and the apertures of every two corresponding test holes are equal.
Furthermore, the test hole groups are arranged at the middle lower part of the pipe wall of the test pipe, and the test holes of each test hole group are arranged on the pipe wall of the test pipe from top to bottom in the descending order.
Further, the number of the test hole groups is five, three of the test hole groups are arranged on the front side pipe wall of the test pipe, and the other two test hole groups are arranged on the rear side pipe wall of the test pipe.
Further, the air inlet pipe is provided with a flow meter.
Furthermore, a fixed seat is arranged at the bottom end of the pipe wall of the test pipe, a lifting lug is arranged at the top end of the pipe wall of the test pipe, and a lifting hole is formed in the lifting lug.
Compared with the prior art, a pipeline inside lining patching material withstand voltage test device have following advantage:
a pipeline inside lining repair material withstand voltage test device in, test tube opening part demountable installation has the end cover, the experimenter of being convenient for gets into will repair the material spraying on the test tube inner wall, has seted up the test punch combination of several on the test tube pipe wall, is convenient for collect the withstand voltage data value of the repair material in different apertures to obtain the withstand voltage value data of the protection film of the different thickness of this repair material different areas, repair for the not equidimension area of corrosion of pipeline inside lining's spraying and provide the data selection support.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural diagram of a pressure resistance testing apparatus for pipeline lining repair material according to the present embodiment;
FIG. 2 is a schematic diagram of the experimental state of the present embodiment.
Description of reference numerals:
1-test tube; 11-test wells; 12-a fixed seat; 13-lifting lugs; 2-a pressure gauge; 3, an air inlet pipe; 4-a flow meter; 5-end cover; 6-earth well; 7-a base; 8-cover plate.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in figure 1, a pipeline inside lining patching material pressure resistance test device, including the test pipe 1 that the level was placed, test pipe 1 one end integrated into one piece is equipped with the spherical head of evagination, and the other end leaves the opening, and this opening part is equipped with flange, and this flange has end cover 5 through bolted connection, is equipped with sealed the pad between end cover 5 and the flange, guarantees test pipe 1 leakproofness. Install intake pipe 3 and manometer 2 at test tube 1 lateral wall top side by side, intake pipe 3 is used for communicating test tube 1 and external high pressurized air source, and intake pipe 3 matches has the flowmeter 4 that detects gas flow, and manometer 2 is used for in good time detecting test tube 1 inside gas pressure value. The pipe wall of the test pipe 1 is provided with a plurality of test hole groups, each test hole group comprises a plurality of test holes 11 with different apertures, the number of the test holes 11 in each test hole group is equal to that of the test holes 11 in other test hole groups, the test holes 11 in each test hole group correspond to the test holes 11 in other test hole groups one by one, and the apertures of every two corresponding test holes 11 are equal.
Since this test is a high risk test, this test is performed in an unmanned environment, and in this embodiment, this pressure resistance test is performed in the earth well 6 that has been excavated in advance. As shown in fig. 2, test tube 1 is preferably DN1000 tube, 5 test well groups are provided, and test wells 11 of each test well group include six wells in total of R5, R10, R15, R20, R25 and R40. In order to improve the safety, the 5 test hole groups are all arranged at the middle lower part of the pipe wall of the test pipe 1, so that the safety of the protective film at the test holes in the earth well 6 is improved when the protective film bursts. Three test hole groups in the five test holes are arranged on the front side pipe wall of the test pipe 1, the other two test hole groups are arranged on the rear side pipe wall of the test pipe 1, the test holes 11 of each test hole group are arranged on the pipe wall of the test pipe from top to bottom in the ascending order, namely the R5 test hole is highest in position, the R40 test hole is lowest in position, and the R5 test hole is located at the position below the central line of the test pipe 1, in the embodiment, the vertical direction distance from the R5 test hole to the central line of the test pipe 1 is 50 mm.
In this embodiment, in order to stably place the test tube 1, the bottom end of the tube wall of the test tube 1 is provided with a fixing seat 12, the top end of the tube wall is provided with a lifting lug 13, and the lifting lug 13 is provided with a lifting hole.
During a specific test, an operator enters the test tube 1 through the test tube opening, and numbers the 6 test holes 11 in each group from small to large in sequence, for example, the 6 test holes 11 in the first group are numbered as a group 1# and 2# from small to large in sequence. . . 6#, the second set of 6 test holes 11 are numbered as two sets 1# and 2#, respectively. . . 6#, and so on, each test well 11 is numbered. And spraying pipeline repairing materials with the same thickness at 30 test holes 11 in the 5 test hole groups, and quickly curing the repairing materials to form a layer of protective film at the opening of each test hole 11. Then seal end cover 5, hoist this test tube to soil pit 6 in, use apron 8 to seal the well head of soil pit 6 well, in this embodiment, apron 8 adopts the components of a whole that can function independently structure to avoid manometer and intake pipe 3. Then connect intake pipe and external high-pressure air source, steadily suppress to test tube 1 in gradually, for example suppress according to 0.5MPa pressure increment mode, survey the manometer change in real time. In order to observe whether the protective film at each test hole is damaged or not, in this embodiment, a pressure sensor is disposed at an outer end of each test hole 11, the pressure sensor is electrically connected to the controller, the controller is electrically connected to the display, once the protective film at the test hole 11 bursts, the pressure sensor corresponding to the test hole 11 transmits a pressure change signal of the burst test hole to the controller, and a serial number and a burst pressure value of the burst test hole 11 are recorded, which is a pressure-resistant value of the protective film with the area. Then, the test hole is plugged manually, and the test tube 1 is continuously pressurized stably. According to the characteristic that the larger the area of the protective film with the same thickness is, the more easily the protective film bursts under the same air pressure, the protective film corresponding to the 6# test hole 11 bursts first, and after the 5 protective film pressure resistance values corresponding to the 6# test holes 11 are collected, the average value is the protective film pressure resistance value of the area (i.e. the area corresponding to the 6# test hole in this embodiment). And (4) continuously and steadily increasing the pressure in the test tube, and by analogy, obtaining the respective pressure resistance values of the protective films with the thicknesses of the areas of the test holes 1#, 2#, 3#, 4# and 5#, recording, and finally obtaining the pressure resistance values corresponding to the six areas of the protective films of the thickness repairing material. The spraying thickness of the repairing material is changed to obtain the pressure resistance values of the protective films with different thicknesses and areas, and data selection support is provided for repairing the corrosion areas of the pipeline lining with different sizes.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a pipeline inside lining patching material withstand voltage test device which characterized in that: place, one end is sealed and the other end is equipped with open-ended test tube (1) including the level, this test tube (1) can be dismantled at its opening part and sealed there is end cover (5), test tube (1) is provided with intake pipe (3) that are used for external air supply and is used for detecting manometer (2) of test tube (1) inside gas pressure, several test hole group has been seted up on test tube (1) pipe wall.
2. The pipe lining repair material pressure resistance test device according to claim 1, characterized in that: each test hole group comprises a plurality of test holes (11) with different apertures, the number of the test holes (11) in each test hole group is equal to that of the test holes (11) in other test hole groups, the test holes correspond to one another one by one, and the apertures of every two corresponding test holes (11) are equal.
3. The pipe lining repair material pressure resistance test device according to claim 2, characterized in that: the test hole groups are arranged at the middle lower part of the pipe wall of the test pipe (1), and the test holes of each test hole group are arranged on the pipe wall of the test pipe from top to bottom in the descending order.
4. The pipe lining patching material pressure resistance test device of claim 2 or 3, wherein: the number of the test hole groups is five, three of the test hole groups are arranged on the front side pipe wall of the test pipe (1), and the other two test hole groups are arranged on the rear side pipe wall of the test pipe (1).
5. The pipe lining repair material pressure resistance test device according to claim 1, characterized in that: the air inlet pipe (3) is provided with a flowmeter (4).
6. The pipe lining repair material pressure resistance test device according to claim 1, characterized in that: the bottom end of the pipe wall of the test pipe (1) is provided with a fixed seat (12), the top end of the pipe wall of the test pipe is provided with a lifting lug (13), and the lifting lug (13) is provided with a lifting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020381102.3U CN211825472U (en) | 2020-03-24 | 2020-03-24 | Pipeline inside lining repair material pressure resistance test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020381102.3U CN211825472U (en) | 2020-03-24 | 2020-03-24 | Pipeline inside lining repair material pressure resistance test device |
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| CN211825472U true CN211825472U (en) | 2020-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640133A (en) * | 2021-08-11 | 2021-11-12 | 中国工程物理研究院激光聚变研究中心 | Sealing film mechanical property testing device based on expansion method |
-
2020
- 2020-03-24 CN CN202020381102.3U patent/CN211825472U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640133A (en) * | 2021-08-11 | 2021-11-12 | 中国工程物理研究院激光聚变研究中心 | Sealing film mechanical property testing device based on expansion method |
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