Pressure testing device for mine filling slurry conveying pipeline

Abstract

The utility model discloses a pressure testing device for a mine filling slurry conveying pipeline, which is characterized by comprising a pipe body, a mounting component is arranged on the pipe body, and an ultrasonic detector is arranged on the mounting component; the installation assembly is composed of two hoops arranged on the outer side of the pipe body in a surrounding and sleeving mode, and the two hoops are arranged left and right. The hoop is divided into an upper part and a lower part, a rotating shaft is arranged on the rear side of the hoop, and a fastening device is arranged on the front side of the hoop and used for opening or closing the hoop; the mounting assembly further comprises a mounting block located at the tops of the hoops, the left end and the right end of the mounting block are connected with the two hoops in a clamped mode respectively, and the ultrasonic detector is fixed to the upper side of the mounting block; and a display is arranged on the ultrasonic detector. Through the device, pressure monitoring can be carried out on any part of the pipeline, the flexibility is high, operation such as disassembly, movement, replacement and maintenance is convenient, the working efficiency is improved, the service life of the pipeline is prolonged, the cost is saved, and the occurrence rate of mine accidents is reduced.

Description

Technical Field

[0001] The utility model relates to a mine filling auxiliary device, in particular to a pressure testing device for a mine filling slurry conveying pipeline. Background Art

[0002] In the process of mining ore, the stress distribution of the underground mine will change. In order to restore and maintain the stress state of the strata and prevent mining accidents caused by excessive ground pressure, filling slurry is often added to the goaf of the mine. Filling slurry is a paste-like substance with a certain viscosity. In the process of transporting the filling slurry to the goaf through the pipeline, the filling slurry may adhere to the inner wall of the pipeline, resulting in excessive pressure after the pipeline is blocked, or it may rub against the inner wall of the pipeline to cause wear. The above two situations, if developed seriously, will cause pipeline damage and filling slurry leakage.

[0003] Therefore, in order to monitor the delivery status of the filling slurry in the pipeline at any time and avoid safety accidents, the pressure tester is currently fixed by bolts in the gap of the pipeline to detect the pressure value in the pipeline in real time. However, this method can only install the pressure tester at the joint of two sections of the pipeline, and cannot detect the pressure conditions at other positions of the pipeline, which is not convenient for promotion and use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a pressure testing device for a mine filling slurry conveying pipeline, through which pressure monitoring can be carried out on any part of the pipeline, with high flexibility and convenient operations such as disassembly, movement, replacement and maintenance, thus improving working efficiency, extending the service life of the pipeline, saving costs and reducing the incidence of mine accidents.

[0005] In order to solve this technical problem, the utility model adopts the following technical solutions:

[0006] A pressure testing device for a mine filling slurry conveying pipeline comprises a pipe body, a mounting assembly is arranged on the pipe body, and an ultrasonic detector for detecting the pressure inside the pipe body is arranged on the mounting assembly;

[0007] The mounting assembly is composed of two clamps arranged around the sleeve on the outside of the tube body, and the two clamps are arranged left and right; the clamp is divided into two parts, an upper part and an lower part, a rotating shaft is arranged at the rear side of the clamp, and a fastening device is arranged at the front side of the clamp for opening or closing the clamp;

[0008] The mounting assembly further comprises a mounting block located at the top of the clamp, the left and right ends of the mounting block are respectively clamped with the two clamps, and the ultrasonic detector is fixed on the upper side of the mounting block;

[0009] The ultrasonic detector is provided with a display capable of displaying pressure values.

[0010] Preferably, a limit rod is provided between the two clamps, the left and right sides of the limit rod respectively penetrate the two clamps, the two ends of the limit rod are respectively fixed with limit blocks, the part of the limit rod extending out of the clamp is provided with a connecting spring, and the connecting spring is located between the limit block and the clamp.

[0011] Preferably, the clamp is also provided with a fixing component for limiting the positional relationship between the tube body and the clamp.

[0012] Further preferably, the fixing assembly includes a fixing bolt which passes through the bottom of the clamp from bottom to top, and a rubber pad is provided on the top of the fixing bolt. The top of the rubber pad is arc-shaped, and the curvature of the top of the rubber pad is consistent with the curvature of the bottom of the tube body; a connecting plate is provided at the bottom of the rubber pad, and sliding rods are respectively provided on the front and rear sides of the connecting plate, and the bottom ends of the two sliding rods are fixed to the bottom of the inner side of the clamp and are respectively located on the front and rear sides of the fixing bolt.

[0013] Further preferably, a connecting ring is provided at the bottom of the connecting plate to limit the top of the fixing bolt.

[0014] Preferably, a protrusion is provided on the left and right sides of the top of the mounting block, and an opening corresponding to the protrusion is provided on the top of the clamp, for fixing the mounting block and the two clamps.

[0015] Preferably, the fastening device comprises bosses extending toward the front at the openings of the upper and lower parts of each clamp, respectively, the two bosses are aligned up and down and a bolt is provided through the middle.

[0016] Preferably, a control box for transmitting data is provided on the rear side of the ultrasonic detector.

[0017] Further preferably, a protective shell for isolating from air is provided on the outer side of the control box.

[0018] Further preferably, a gasket is provided between the control box and the protective shell.

[0019] The positive effects of the utility model are:

[0020] First, the utility model realizes pressure monitoring at any position in the pipeline by providing an installation component that can be installed at any part of the pipe body, and the installation component is highly flexible, and operations such as disassembly, movement, replacement, and maintenance are highly convenient, which greatly improves the efficiency of pressure monitoring, thereby extending the service life of the pipeline, saving costs, and reducing the incidence of mine accidents.

[0021] Second, the utility model can prevent the deviation between the pipe body and the installation component by setting a fixing component, thereby avoiding the deviation of the pressure value monitored in the pipe body by the ultrasonic detector; and by adjusting the height of the fixing bolt screwed into the inner side of the clamp, the installation component can be adapted to pipes of different sizes.

[0022] Third, the utility model can maintain relative stability between the two clamps of the installation assembly by setting a limit rod, thereby ensuring the accuracy of the monitoring data of the ultrasonic detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the installation assembly structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the control box structure of the utility model. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1 and Figure 2 As shown, the utility model comprises a pipe body 2, on which a mounting assembly is arranged, on which an ultrasonic detector 1 for detecting the pressure inside the pipe body 2 is arranged, and on which a display capable of displaying pressure values ​​is arranged.

[0028] The mounting assembly is composed of two clamps 4 that are arranged around the outside of the tube body 2, and the two clamps 4 are arranged left and right. A rotating shaft 14 is provided in the middle of the rear side of the clamp 4, so that the clamp 4 is divided into two hinged upper and lower parts. A fastening device is provided on the front side of the clamp 4, and the fastening device includes bosses extending toward the front side at the openings of the upper and lower parts of each clamp 4, and the two bosses are aligned up and down and a bolt 5 is provided in the middle to enable the clamp 4 to be opened or closed.

[0029] Two limiting rods 6 are arranged between the two clamps 4. Both limiting rods 6 are located at the upper part of the clamps 4, and the left and right sides of the limiting rods 6 penetrate the two clamps 4 respectively. The limiting rod 6 is composed of a thick rod and two thin rods. The two thin rods are fixed at both ends of the thick rod (a thick rod and two thin rods are arranged in a straight line). The thick rod is located between the two clamps 4. Each thin rod penetrates the clamp 4 outward. The diameter of the thick rod is larger than the perforation where the thin rod and the clamp 4 penetrate, so that the clamp 4 can only slide on the thin rod, which plays a limiting role on the clamp 4. The outer end of the thin rod is threadedly connected to the limiting block 9, and the part of each thin rod extending out of the clamp 4 is sleeved with a connecting spring 3, which is located between the limiting block 9 and the clamp 4. By setting the limiting rod 6, the two clamps 4 of the installation assembly can be kept relatively stable, ensuring the accuracy of the monitoring data of the ultrasonic detector 1.

[0030] The mounting assembly further includes a mounting block 11 located at the top of the clamp 4, and the left and right ends of the mounting block 11 are respectively plugged with the two clamps 4. The left and right sides of the top of the mounting block 11 are respectively provided with protrusions 10, and the top of the clamp 4 is respectively provided with an opening corresponding to the protrusion 10, which is used to plug and fix the mounting block 11 with the two clamps 4. The ultrasonic detector 1 is fixed on the upper side of the mounting block 11.

[0031] By providing an installation component that can be installed at any position of the pipe body 2, pressure monitoring at any position in the pipeline is achieved, and the installation component has high flexibility, and operations such as disassembly, movement, replacement, and maintenance are convenient, which greatly improves the efficiency of pressure monitoring, thereby extending the service life of the pipeline, saving costs, and reducing the incidence of mine accidents.

[0032] The clamp 4 is also provided with a fixing assembly for limiting the positional relationship between the tube body 2 and the clamp 4. The fixing assembly includes a fixing bolt 8 that penetrates the bottom of the clamp 4 from bottom to top, and a rubber pad 15 for supporting the tube body 2 is provided on the top of the fixing bolt 8. The top of the rubber pad 15 is arc-shaped, and the curvature of the top of the rubber pad 15 is consistent with the curvature of the bottom of the tube body 2. A connecting plate 16 is provided at the bottom of the rubber pad 15, and sliding rods 7 are respectively provided on the front and rear sides of the connecting plate 16. The bottom ends of the two sliding rods 7 are fixed to the bottom of the inner side of the clamp 4 and are respectively located on the front and rear sides of the fixing bolt 8. By providing the sliding rod 7, the rubber pad 15 can be prevented from rotating and misaligning. A connecting ring 17 is also provided at the bottom of the connecting plate 16 to limit the top of the fixing bolt 8.

[0033] By setting up a fixing component, deviation between the pipe body 2 and the installation component can be prevented, thereby avoiding deviation of the pressure value monitored in the pipe body 2 by the ultrasonic detector 1; and by adjusting the height of the fixing bolt 8 screwed into the inner side of the clamp 4, the installation component can be adapted to pipes of different sizes.

[0034] like Figure 3 As shown, a control box 13 for transmitting data is provided on the rear side of the ultrasonic detector 1, which can transmit the pressure value detected by the ultrasonic detector 1 to the well surface, so that the staff can monitor the pressure values ​​at various locations in the pipeline in real time without going down the well. A data transmission line connection port is provided on the right side of the control box 13, and a protective shell 12 with a gasket 18 is provided on the outside of the connection port to isolate the control box 13 from humid air and keep the inside of the control box 13 dry.

[0035] The utility model discloses a pressure testing device for a mine filling slurry conveying pipeline, and its use method is as follows:

[0036] On the pipeline for conveying filling slurry, the number of devices of this invention is set as required. At each installation point, first insert the mounting block 11 fixed with the ultrasonic detector 1 from bottom to top on the two clamps 4 of the mounting assembly, open the front opening of the clamp 4 to the maximum, allow the pipe body 2 to enter the clamp 4 from the front, close the clamp 4, tighten the bolt 5 on the front side of the clamp 4, and close and tighten the clamp 4. At this time, the pipe body 2 is placed on the upper side of the rubber pad 15, and the height of the fixing bolt 8 is adjusted upward. When the top of the pipe body 2 is in close contact with the bottom of the mounting block 11, stop rotating the fixing bolt 8. Start the ultrasonic detector 1, and the data of the ultrasonic detector 1 is displayed on the display for reference. The data can also be transmitted to the well through the control box 13, so that the staff can monitor the pressure inside the pipe body 2 in real time without going down the well.

[0037] In order to increase the stability of the installation assembly, a limit rod 6 is added between the two clamps 4. First, the distance between the clamps 4 is adjusted and expanded so that the thin rods at both ends of the limit rod 6 can pass through the corresponding holes on the clamps 4 in sequence, and then the distance between the clamps 4 is restored (after fixing the mounting blocks 11 on the tops of the two clamps 4, the two clamps 4 are parallel to each other). The connecting spring 3 is sleeved on the thin rods at both ends of the limit rod 6, and then the limit blocks 9 are screwed into the ends of the limit rod 6 respectively. The connecting spring 3 is in a compressed state between the clamp 4 and the limit block 9, pressing the clamp 4 against the two ends of the thick rod of the limit rod 6 to ensure the parallelism and stability of the two clamps 4.

[0038] When the ultrasonic detector 1 needs to be disassembled, moved, replaced, and maintained, there is no need to disassemble the clamp 4. The staff only needs to rotate the fixing bolt 8 to move it downward. The rubber pad 15 on the top of the fixing bolt 8 moves downward to drive the tube body 2 to move downward, and the plug-in relationship between the protrusion 10 and the clamp 4 is released until there is enough space between the top of the tube body 2 and the top of the clamp 4 to move the mounting block 11 out of the clamp 4. Then stop rotating the fixing bolt 8. After that, use the two limit blocks 9 as fulcrums and squeeze the clamp 4 to both sides to further compress the connecting spring 3. The distance between the two clamps 4 is increased, which makes it easier to move the mounting block 11 outward, thus realizing the disassembly, movement, and maintenance of the ultrasonic detector 1. If the ultrasonic detector 1 needs to be further replaced, the above steps can be performed in reverse order, and a new mounting block 11 can be installed in the clamp 4.

Claims

1. A pressure testing device for a mine filling slurry conveying pipeline, characterized in that: It comprises a pipe body (2), a mounting assembly being arranged on the pipe body (2), and an ultrasonic detector (1) for detecting the pressure inside the pipe body (2) being arranged on the mounting assembly; The mounting assembly is composed of two clamps (4) arranged around the sleeve on the outside of the tube body (2), and the two clamps (4) are arranged left and right; the clamp (4) is divided into two parts, an upper part and an lower part, a rotating shaft (14) is provided on the rear side of the clamp (4), and a fastening device is provided on the front side of the clamp (4) for opening or closing the clamp (4); The mounting assembly further comprises a mounting block (11) located on top of the clamp (4), the left and right ends of the mounting block (11) being respectively clamped with the two clamps (4), and the ultrasonic detector (1) being fixed on the upper side of the mounting block (11); The ultrasonic detector (1) is provided with a display capable of displaying pressure values.

2. The pressure testing device for a mine filling slurry conveying pipeline according to claim 1 is characterized in that: A limiting rod (6) is provided between the two clamps (4), the left and right sides of the limiting rod (6) respectively penetrate the two clamps (4), the two ends of the limiting rod (6) are respectively fixed with limiting blocks (9), the portion of the limiting rod (6) extending out of the clamp (4) is sleeved with a connecting spring (3), and the connecting spring (3) is located between the limiting block (9) and the clamp (4).

3. The pressure testing device for a mine filling slurry conveying pipeline according to claim 1 or 2, characterized in that: The clamp (4) is also provided with a fixing component for defining the positional relationship between the pipe body (2) and the clamp (4).

4. The pressure testing device for a mine filling slurry conveying pipeline according to claim 3 is characterized in that: The fixing assembly comprises a fixing bolt (8) which passes through the bottom of the clamp (4) from bottom to top, a rubber pad (15) is provided on the top of the fixing bolt (8), the top of the rubber pad (15) is arc-shaped, and the curvature of the top of the rubber pad (15) is consistent with the curvature of the bottom of the tube body (2); a connecting plate (16) is provided on the bottom of the rubber pad (15), and sliding rods (7) are respectively provided on the front and rear sides of the connecting plate (16), and the bottom ends of the two sliding rods (7) are fixed to the bottom of the inner side of the clamp (4) and are respectively located on the front and rear sides of the fixing bolt (8).

5. The pressure testing device for a mine filling slurry conveying pipeline according to claim 4 is characterized in that: A connecting ring (17) is provided at the bottom of the connecting plate (16) for limiting the top of the fixing bolt (8).

6. The pressure testing device for a mine filling slurry conveying pipeline according to claim 1, characterized in that: The left and right sides of the top of the mounting block (11) are respectively provided with protrusions (10), and the top of the clamp (4) is respectively provided with an opening corresponding to the protrusion (10) for fixing the mounting block (11) and the two clamps (4).

7. The pressure testing device for a mine filling slurry conveying pipeline according to claim 1, characterized in that: The fastening device comprises bosses extending toward the front at the openings of the upper and lower parts of each clamp (4), the two bosses being aligned up and down and having a bolt (5) passing through the middle.

8. The pressure testing device for a mine filling slurry conveying pipeline according to claim 1 or 2, characterized in that: A control box (13) for transmitting data is provided on the rear side of the ultrasonic detector (1).

9. The pressure testing device for a mine filling slurry conveying pipeline according to claim 8, characterized in that: The control box (13) is provided with a protective shell (12) on the outside thereof for isolating from air.

10. The pressure testing device for a mine filling slurry conveying pipeline according to claim 9, characterized in that: A gasket (18) is also provided between the control box (13) and the protective shell (12).

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