A physical model for radar detection of concealed pipelines in buildings

Abstract

This invention discloses a physical model for radar detection of concealed indoor pipelines, comprising a first physical model, a second physical model, and a third physical model. Each of the three models includes a base layer, an intermediate layer, and a surface layer. Multiple experimental pipe groups, with variations in material, burial depth, pipe diameter, environmental interference, and complex scenarios, are pre-embedded in the first, second, and third physical models for comparison of experimental data. This invention features a compact structure, reasonable pipeline arrangement, and small footprint, meeting various experimental requirements for radar detection of concealed indoor pipelines, verifying radar detection accuracy and applicability, and improving detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of radar detection experiments, and in particular to a physical model for radar detection of concealed indoor pipelines. Background Technology

[0002] Interior pipework in buildings is typically embedded in structural components such as concrete floor slabs and walls, or in the building surface. For the renovation of concealed pipework in old residential areas, it is necessary to quickly detect and locate the specific laying location, pipe diameter, pipe material, and pipe type of the old pipework.

[0003] The objectives of the radar detection experiment for concealed indoor pipelines are: 1. To verify the detection accuracy and applicability through experimental data; 2. To analyze the impact of factors such as pipeline material (metal / non-metal), burial depth, pipe diameter, and environmental interference on radar detection results; 3. To explore optimization schemes for radar parameters (antenna frequency, scanning speed) to improve detection efficiency. The experiment consists of five parts, respectively addressing the effects of material, burial depth, pipe diameter, environmental interference, and complex scenarios, generating comparative data. The experimental process employs a single-variable control method.

[0004] In view of this, this utility model proposes a physical model for radar detection of concealed indoor pipelines to meet experimental requirements. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a physical model for radar detection of concealed indoor pipelines, so that it meets the experimental requirements, can obtain effective comparison data, verify the detection accuracy and applicability of radar equipment for concealed indoor pipelines, improve detection efficiency, and thus overcome the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a physical model for radar detection of concealed indoor pipelines, including a first physical model, a second physical model and a third physical model;

[0007] The first entity model, the second entity model, and the third entity model all include a base layer, an intermediate layer, and a surface layer;

[0008] A first experimental pipe group is pre-embedded in the middle layer of the first physical model, and a second experimental pipe group is pre-embedded in the base layer. The first experimental pipe group consists of several round pipes of the same diameter but different materials arranged at intervals, and the second experimental pipe group consists of several round pipes of different diameters and different materials arranged at intervals.

[0009] The first experimental pipe group is pre-embedded in the middle layer of the second physical model, and the third, fourth and fifth experimental pipe groups are pre-embedded in the base layer. The third experimental pipe group consists of round pipes of the same diameter but different materials arranged side by side, the fourth experimental pipe group consists of round pipes of different diameters but the same material arranged side by side, and the fifth experimental pipe group consists of round pipes of different materials and different diameters arranged side by side.

[0010] A grid-like embedding groove is carved out on the base surface of the third physical model. The first experimental tube group is pre-embedded in the horizontal groove, and the sixth experimental tube group is pre-embedded in the vertical groove. The sixth experimental tube group consists of round tubes of different diameters and materials.

[0011] As an improvement of this utility model, the base of the first physical model is a 130mm thick concrete, and the second experimental pipe group is pre-embedded in the base with a steel mesh, with the lowest end of the pipe wall 20mm away from the bottom of the base.

[0012] The middle layer consists of a 20mm thick foamed plastic insulation layer, an 80mm thick cement mortar filling layer, a 20mm thick mortar leveling layer, and a 5mm thick bonding layer from bottom to top. The steel mesh of the first experimental pipe group is embedded in the cement mortar filling layer, and the uppermost part of the pipe wall is 30mm away from the top of the cement mortar filling layer.

[0013] The surface layer is a 12mm thick floor.

[0014] Furthermore, the base layer of the second physical model is 130mm concrete, and the reinforcing steel mesh of the third, fourth, and fifth experimental pipe groups is pre-embedded in the base layer.

[0015] The intermediate layer consists of a 30mm thick crushed stone concrete layer, a 20mm thick cement mortar layer, a 20mm thick cement mortar leveling layer, a 20mm protective layer, and a 25mm bonding layer from bottom to top. The steel mesh for the first experimental pipe group is embedded in the crushed stone concrete layer.

[0016] The surface layer is 10mm thick floor tiles.

[0017] Furthermore, the base layer of the third physical model is a brick wall, the middle layer consists of a 9mm thick base coat, a 5mm thick mortar smoothing layer, and a 2mm thick putty smoothing layer from the inside out, and the surface layer is wallpaper or fabric.

[0018] Furthermore, the diameter of the first experimental pipe group is DN25, and from left to right, they are PE pipe, PVC pipe, steel pipe, copper pipe and aluminum-plastic composite pipe;

[0019] The second experimental tube group consists of a DN15 PVC pipe, a DN25 PVC pipe, a DN25 steel pipe, and a DN50 copper pipe, from left to right.

[0020] The pipes in the third experimental pipe group all have a diameter of DN25, and from left to right they are PVC pipe, PE pipe, steel pipe and copper pipe;

[0021] The fourth experimental tube group is made of PVC, and the tube diameters from left to right are DN25, DN35 and DN50 respectively.

[0022] The fifth experimental tube group consists of a DN25 steel pipe, a DN50 steel pipe, and a DN50 copper pipe, from left to right.

[0023] The sixth experimental pipe group consists of, from left to right, a DN30 aluminum-plastic composite pipe, a DN50 steel pipe, a DN25 steel pipe, a DN35 PE pipe, and a DN25 PE pipe.

[0024] Furthermore, the surface layers of the first, second, and third solid models are all divided into 2cm × 2cm grid lines.

[0025] With this design, the present invention has at least the following advantages.

[0026] 1. The first, second, and third physical models in this invention simulate at least five experimental conditions to meet experimental requirements, verify the accuracy and applicability of radar equipment for detecting concealed pipelines indoors, and improve detection efficiency.

[0027] 2. The structure is compact and reasonable, which facilitates experiments and occupies little space. Attached Figure Description

[0028] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 This is a cross-sectional structural diagram of the first physical model in this utility model.

[0030] Figure 2 This is a cross-sectional structural diagram of the second physical model in this utility model.

[0031] Figure 3 This is a front view of the third physical model in this utility model.

[0032] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of section AA.

[0033] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure of section BB.

[0034] Explanation of reference numerals in the attached drawings: 1. Base layer; 2. Intermediate layer; 3. Surface layer; 4. First experimental pipe group; 5. Second experimental pipe group; 6. Third experimental pipe group; 7. Fourth experimental pipe group; 8. Fifth experimental pipe group; 9. Sixth experimental pipe group; 10. Reinforcing mesh. Detailed Implementation

[0035] Please see Figures 1 to 5This utility model provides a physical model for radar detection of concealed indoor pipelines, including a first physical model, a second physical model and a third physical model.

[0036] The first entity model, the second entity model, and the third entity model all include a base layer 1, an intermediate layer 2, and a surface layer 3.

[0037] Please see Figure 1 The base layer 1 of the first physical model is 130mm thick concrete. The middle layer, from bottom to top, consists of a 20mm thick foamed plastic insulation layer, an 80mm thick cement mortar filling layer, a 20mm thick mortar leveling layer, and a 5mm thick adhesive layer. The surface layer is 10mm thick floor tiles.

[0038] The first experimental pipe group 4 is pre-embedded in the middle layer 2 of the first solid model, and the second experimental pipe group 5 is pre-embedded in the base layer 1. The first experimental pipe group 4 consists of several round pipes of the same diameter but different materials arranged at intervals, and the second experimental pipe group 5 consists of several round pipes of different diameters and different materials arranged at intervals.

[0039] In this embodiment, the first experimental tube group 4 has five tubes, all with a diameter of DN25, which are PE tube, PVC tube, steel tube, copper tube and aluminum-plastic composite tube from left to right.

[0040] The first experimental tube group 4 is pre-embedded in the cement mortar filling layer, with the uppermost end of the tube wall 30mm away from the top of the cement mortar filling layer.

[0041] The second experimental tube group 5 has four tubes, from left to right: a DN15 PVC pipe, a DN25 PVC pipe, a DN25 steel pipe, and a DN50 copper pipe.

[0042] The second experimental tube group 5 is tied to the steel mesh 10 and embedded in the base layer 1, with the lowest end of the tube wall 20mm away from the bottom of the base layer.

[0043] It should be noted that the four tubes in the second experimental tube group 5 are all distributed at the intervals between adjacent tubes in the first experimental tube group 4.

[0044] Please see Figure 2 The second physical model has a base layer 1 of 130mm thick concrete, and the intermediate layers from bottom to top are a 30mm thick crushed stone concrete layer, a 20mm thick cement mortar layer, a 20mm thick cement mortar leveling layer, a 20mm thick protective layer, and a 25mm thick bonding layer. The surface layer is a 12mm thick floor.

[0045] The first experimental tube group 4 is pre-embedded in the intermediate layer 2 of the second physical model, and the third experimental tube group 6, the fourth experimental tube group 7 and the fifth experimental tube group 8 are pre-embedded in the base layer 1.

[0046] The parameters of the first experimental tube group 4 are the same as those above, and will not be repeated here.

[0047] The third experimental tube group 6 consists of round tubes of the same diameter but different materials arranged side by side; the fourth experimental tube group 7 consists of round tubes of different diameters but the same material arranged side by side; and the fifth experimental tube group 8 consists of round tubes of different materials and different diameters arranged side by side.

[0048] In this embodiment, the pipes in the third experimental pipe group 6 are all DN25 in diameter, and from left to right, they are PVC pipe, PE pipe, steel pipe, and copper pipe. The fourth experimental pipe group 7 is all made of PVC, and from left to right, the pipe diameters are DN25, DN35, and DN50. The fifth experimental pipe group 8 consists of DN25 steel pipe, DN50 steel pipe, and DN50 copper pipe from left to right. The third experimental pipe group 6, the fourth experimental pipe group 7, and the fifth experimental pipe group 8 are all tied and fixed to the reinforcing mesh 10 during pre-embedding.

[0049] It should be noted that the first experimental tube group 4 is pre-embedded in the intermediate layer 2 of both the first and second physical models, but the internal structure, thickness and pre-embedding depth of the intermediate layer 2 of the first and second physical models are different.

[0050] Please see Figures 3 to 5 The base layer 1 of the third entity model is a brick wall. The surface of the base layer is chiseled with intersecting grooves in a grid pattern. The first experimental pipe group 4 is embedded in the horizontal groove, and the sixth experimental pipe group 9 is embedded in the vertical groove. The intermediate layer 2 consists of a 9mm thick base layer, a 5mm thick mortar leveling layer, and a 2mm thick putty leveling layer from the inside to the outside. The surface layer 3 is wallpaper or cloth.

[0051] The sixth experimental pipe group 9 consists of round pipes of different diameters and materials. In this embodiment, from left to right, they are DN30 aluminum-plastic composite pipe, DN50 steel pipe, DN25 steel pipe, DN35 PE pipe and DN25 PE pipe.

[0052] The surfaces of the first, second, and third solid models are all divided into 2cm×2cm grid lines to facilitate recording the position of each pipeline during inspection.

[0053] The experiment consisted of five parts, which verified the impact of five factors on the test data: material, burial depth, pipe diameter, environmental interference, and complex scenarios.

[0054] Material verification experiment: Test the first experimental tube group 4 in the first physical model or the second physical model to obtain comparison data.

[0055] Burial depth verification experiment: The first experimental tube group 4 in the first physical model and the second physical model were tested respectively, and comparison data were obtained.

[0056] Pipe diameter verification experiment: The DN15 and DN25 PVC pipes in the second experimental pipe group 5 were tested to obtain comparative data of different diameters of non-metallic pipes; the DN25 steel pipes and DN50 copper pipes in the second experimental pipe group 5 were tested to obtain comparative data of different diameters of metallic pipes.

[0057] Environmental interference verification experiment: This experiment involves adding a steel mesh and adjacent pipelines around the pipeline to be tested as interference factors, and then comparing images or parameters. Therefore, the third experimental pipe group 6, the fourth experimental pipe group 7, and the fifth experimental pipe group 8 are all set up side by side, and the obtained test data can be compared within their own groups, or compared with the data of the second experimental pipe group 5.

[0058] Complex scenario verification experiment: This experiment is used to verify the accuracy of the detection data under the structure of pipeline intersection or multi-layer pipeline. The detection objects are the first experimental pipe group 4 and the sixth experimental pipe group 9 in the third entity model.

[0059] This utility model has a compact structure, reasonable pipeline layout, and small footprint. It can meet multiple experimental requirements for radar detection of concealed pipelines indoors, verify the accuracy and applicability of radar detection, and improve detection efficiency.

[0060] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. A solid model for radar detection of concealed indoor pipelines, characterized in that, Including the first entity model, the second entity model, and the third entity model; The first entity model, the second entity model, and the third entity model all include a base layer, an intermediate layer, and a surface layer; A first experimental pipe group is pre-embedded in the middle layer of the first physical model, and a second experimental pipe group is pre-embedded in the base layer. The first experimental pipe group consists of several round pipes of the same diameter but different materials arranged at intervals, and the second experimental pipe group consists of several round pipes of different diameters and different materials arranged at intervals. The first experimental pipe group is pre-embedded in the middle layer of the second physical model, and the third, fourth and fifth experimental pipe groups are pre-embedded in the base layer. The third experimental pipe group consists of round pipes of the same diameter but different materials arranged side by side, the fourth experimental pipe group consists of round pipes of different diameters but the same material arranged side by side, and the fifth experimental pipe group consists of round pipes of different materials and different diameters arranged side by side. A grid-like embedding groove is carved out on the base surface of the third physical model. The first experimental tube group is pre-embedded in the horizontal groove, and the sixth experimental tube group is pre-embedded in the vertical groove. The sixth experimental tube group consists of round tubes of different diameters and materials.

2. A physical model for radar detection of concealed pipelines in a room according to claim 1, characterized in that, The base of the first physical model is 130mm thick concrete, and the second experimental pipe group is pre-embedded with steel mesh in the base, with the lowest end of the pipe wall 20mm away from the bottom of the base. The middle layer consists of a 20mm thick foamed plastic insulation layer, an 80mm thick cement mortar filling layer, a 20mm thick mortar leveling layer, and a 5mm thick adhesive layer from bottom to top. The first experimental pipe group is pre-embedded in the cement mortar filling layer, with the uppermost part of the pipe wall 30mm away from the top of the cement mortar filling layer. The surface layer is a 12mm thick floor.

3. A physical model for radar detection of concealed pipelines in a room according to claim 1, characterized in that, The base layer of the second physical model is 130mm concrete, and the reinforcing steel mesh of the third, fourth and fifth experimental pipe groups is pre-embedded in the base layer. The intermediate layer consists of a 30mm thick crushed stone concrete layer, a 20mm thick cement mortar layer, a 20mm thick cement mortar leveling layer, a 20mm protective layer, and a 25mm bonding layer from bottom to top. The first experimental pipe group is pre-embedded in the crushed stone concrete layer. The surface layer is 10mm thick floor tiles.

4. A physical model for radar detection of concealed pipelines in a room according to claim 1, characterized in that, The third physical model has a brick wall as its base layer, and the middle layer consists of a 9mm thick base coat, a 5mm thick mortar leveling layer, and a 2mm thick putty leveling layer from the inside out. The surface layer is wallpaper or fabric.

5. A physical model for radar detection of concealed pipelines in a room according to claim 1, characterized in that, The diameter of the first experimental pipe group is DN25, and from left to right they are PE pipe, PVC pipe, steel pipe, copper pipe and aluminum-plastic composite pipe; The second experimental tube group consists of a DN15 PVC pipe, a DN25 PVC pipe, a DN25 steel pipe, and a DN50 copper pipe, from left to right. The pipes in the third experimental pipe group all have a diameter of DN25, and from left to right they are PVC pipe, PE pipe, steel pipe and copper pipe; The fourth experimental tube group is made of PVC, and the tube diameters from left to right are DN25, DN35 and DN50 respectively. The fifth experimental tube group consists of a DN25 steel pipe, a DN50 steel pipe, and a DN50 copper pipe, from left to right. The sixth experimental pipe group consists of, from left to right, a DN30 aluminum-plastic composite pipe, a DN50 steel pipe, a DN25 steel pipe, a DN35 PE pipe, and a DN25 PE pipe.

6. A physical model for radar detection of concealed pipelines in a room according to claim 1, characterized in that, The surface of the first entity model, the second entity model and the third entity model is all divided into 2cm×2cm grid lines.

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