Galvanized steel pipe sealing performance detection device

Abstract

The utility model discloses a galvanized steel pipe sealing performance detection device, which belongs to the technical field of galvanized steel pipe detection and comprises a first movement mechanism, a second movement mechanism and a deformation mechanism connected between the first movement mechanism and the second movement mechanism. The detection mechanism is matched with the deformation mechanism; wherein the deformation mechanism abuts against the inner wall of a to-be-detected pipeline to form a closed storage space, and the storage space is used for containing detection gas; the first movement mechanism and the second movement mechanism are matched with each other to enable the deformation mechanism to deform, and the detection mechanism is arranged outside the to-be-detected pipeline and used for detecting the detection gas in the storage space to judge the sealing performance of the pipeline. According to the utility model, the technical problem that the efficiency of detecting the leakproofness by immersing the galvanized steel pipe into water to observe whether bubbles exist is low is solved, and the technical effect of rapidly detecting the leakproofness of the galvanized steel pipe is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of galvanized steel pipe detection, in particular to a galvanized steel pipe sealing detection device. Background Art

[0002] Galvanized steel pipe is a welded steel pipe with hot-dip or electroplated zinc layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and extend their service life. Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipelines in the petroleum industry, especially offshore oil fields, oil heaters, condenser coolers, coal distillation and washing oil exchangers for chemical coking equipment, and pier piles and support frames for mine tunnels.

[0003] During the production process of galvanized steel pipes, it is necessary to test the sealing performance of the galvanized steel pipes. In the prior art, the sealing performance is usually tested by combining air and water. After the two ends of the steel pipe are sealed, the air pressure inside the galvanized steel pipe is increased, and then the galvanized steel pipe is immersed in water to observe whether there are bubbles to test the sealing performance of the steel pipe. However, this method is inefficient in testing the sealing performance and cannot be adapted to large-scale production. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a galvanized steel pipe sealing detection device, comprising:

[0005] A first motion mechanism, a second motion mechanism, a deformation mechanism connected between the first motion mechanism and the second motion mechanism; and a detection mechanism adapted to the deformation mechanism;

[0006] Wherein, the deformation mechanism abuts against the inner wall of the pipeline to be tested and forms a closed storage space, and the storage space is used to contain the test gas;

[0007] The first motion mechanism cooperates with the second motion mechanism to deform the deformation mechanism. The detection mechanism is arranged outside the pipeline to be tested and is used to detect the detection gas in the storage space to determine the sealing performance of the pipeline.

[0008] In some embodiments, the first motion mechanism includes: a first power assembly, and a first Mecanum wheelset connected to the first power assembly;

[0009] The second motion mechanism includes a second power assembly and a second Mecanum wheelset connected to the second power assembly.

[0010] In some embodiments, the deformation mechanism includes: a bellows airbag, sealing joints provided at both ends of the bellows airbag, and a sealing ring provided on the sealing joint;

[0011] The bellows airbag is an elastic airbag with a corrugated outer structure, and its two ends are respectively connected to the first motion mechanism and the second motion mechanism;

[0012] The detection mechanism comprises: a carrying case, a gas sensor arranged on the carrying case, and a gas analyzer connected to the gas sensor.

[0013] In some embodiments, the accompanying sleeve is a hollow sleeve-shaped structure, and a ball is provided on the inner wall thereof. The gap between the accompanying sleeve and the pipeline to be tested is a detection space, and the gas sensor is arranged in the detection space.

[0014] In some embodiments, a connecting shaft is provided on the output end of the first power assembly, and the first Mecanum wheelset is connected to the connecting shaft.

[0015] In some embodiments, the galvanized steel pipe sealing detection device further includes a lubrication mechanism disposed at both ends of the first motion mechanism and the second motion mechanism.

[0016] The lubricating mechanism comprises a liquid storage disk and a lubricating ring arranged on the liquid storage disk.

[0017] In some embodiments, the liquid storage disk is a hollow disc-shaped structure, the hollow part of which is used to store lubricating liquid, and one side of the liquid storage disk is connected to the connecting shaft;

[0018] A plurality of liquid permeable holes are provided on the outer circumference of the liquid storage disk;

[0019] The lubrication ring is made of sponge material and is sleeved on the outer circumference of the liquid storage disk;

[0020] A liquid injection port is also provided on one side of the liquid storage tray away from the connecting shaft.

[0021] In some embodiments, the galvanized steel pipe sealing detection device further includes: a debugging tube, the first motion mechanism, the second motion mechanism, and the deformation mechanism are located in the debugging tube, and the detection mechanism is located outside the debugging tube;

[0022] The debugging tube is provided with a gas source interface which runs through the debugging tube and is used for injecting detection gas into the storage space formed by the deformation mechanism and the debugging tube.

[0023] By adopting the above technical solution, the utility model mainly has the following technical effects:

[0024] The first motion mechanism and the second motion mechanism cooperate with each other to deform the deformation mechanism. The detection mechanism is arranged outside the pipeline to be tested to detect the detection gas in the storage space to determine the sealing of the pipeline. The technical problem of low efficiency of detecting the sealing by immersing the galvanized steel pipe in water to observe whether there are bubbles is solved, and the technical effect of quickly detecting the sealing of the galvanized steel pipe is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a galvanized steel pipe sealing detection device of the utility model;

[0026] Figure 2 This is a schematic structural diagram of a galvanized steel pipe sealing detection device (from another perspective) according to the utility model;

[0027] Figure 3 This is a cross-sectional view of a galvanized steel pipe sealing detection device of the utility model;

[0028] Figure 4 This is a schematic diagram of the explosion structure of a galvanized steel pipe sealing detection device of the utility model;

[0029] Figure 5 This is a structural schematic diagram of a galvanized steel pipe sealing detection device (hidden debugging tube) of the utility model;

[0030] Figure 6 The utility model is a schematic diagram of the overall structure of a galvanized steel pipe sealing detection device.

[0031] The meanings of the reference numerals are as follows:

[0032] 1. first motion mechanism; 11. first power assembly; 111. connecting shaft; 12. first Mecanum wheel set;

[0033] 2. a second motion mechanism; 21. a second power assembly; 22. a second Mecanum wheel set;

[0034] 3. Deformation mechanism; 31. Bellows airbag; 32. Sealing joint; 33. Sealing ring; 331. Extension section;

[0035] 4. Detection mechanism; 41. Travelling sleeve; 411. Ball bearing; 412. Detection space; 42. Gas sensor; 43. Gas analyzer;

[0036] 5. Storage space;

[0037] 6. Lubricating mechanism; 61. Liquid storage disk; 611. Liquid permeable hole; 62. Lubricating ring; 63. Liquid injection port;

[0038] 7. Debugging tube; 71. Air source interface. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the specification of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] See also Figure 1-Figure 6 The utility model provides a galvanized steel pipe sealing detection device for detecting the sealing of the galvanized steel pipe, which comprises: a first motion mechanism 1, a second motion mechanism 2, a deformation mechanism 3 connected between the first motion mechanism 1 and the second motion mechanism 2; and a detection mechanism 4 adapted to the deformation mechanism 3; wherein the deformation mechanism 3 abuts against the inner wall of the pipeline to be tested and forms a closed storage space 5, and the storage space 5 is used to accommodate the detection gas; the first motion mechanism 1 and the second motion mechanism 2 cooperate with each other to deform the deformation mechanism 3, and the detection mechanism 4 is arranged outside the pipeline to be tested, and is used to detect the detection gas in the storage space 5 to judge the sealing of the pipeline.

[0042] In some embodiments, the first motion mechanism 1 includes: a first power assembly 11, and a first Mecanum wheel set 12 connected to the first power assembly 11. In some embodiments, the first power assembly 11 can be a motor, and a connecting shaft 111 is provided on the output end thereof. The first Mecanum wheel set 12 is connected to the connecting shaft 111. Under the output action of the first power assembly 11, the first Mecanum wheel set 12 will rotate around the connecting shaft 111 as an axis, thereby driving the first motion mechanism 1 to move in the pipeline to be tested along the pipeline setting direction.

[0043] In some embodiments, the first motion mechanism 1 and the second motion mechanism 2 have the same structure, and the second motion mechanism 2 includes a second power assembly 21 and a second Mecanum wheelset 22 connected to the second power assembly 21. Under the output of the first power assembly 11 and the second power assembly 21, the first motion mechanism 1 and the second motion mechanism 2 can both move in the pipeline to be tested.

[0044] It can be understood that by respectively adjusting the output direction and power of the first power component 11 and the second power component 21, the first motion mechanism 1 and the second motion mechanism 2 have a certain speed difference when moving in the pipeline to be tested, and by adjusting the speed difference, the deformation mechanism 3 arranged between the first motion mechanism 1 and the second motion mechanism 2 is deformed; specifically, the speed difference between the first motion mechanism 1 and the second motion mechanism 2 is used to stretch or compress the deformation mechanism 3, thereby compressing the detection gas in the storage space 5 so that it escapes through the leakage of the pipeline to be tested, so as to achieve the purpose of detecting the air tightness of the galvanized steel pipe, or to form a negative pressure in the storage space 5, so as to fill the storage space 5 with the detection gas.

[0045] In some embodiments, the deformation mechanism 3 includes: a bellows airbag 31, sealing joints 32 provided at both ends of the bellows airbag 31, and a sealing ring 33 provided on the sealing joint 32; in some embodiments, the bellows airbag 31 can be an elastic airbag with a corrugated external structure, and its two ends are respectively connected to the first motion mechanism 1 and the second motion mechanism 2. Under the traction of the first motion mechanism 1 and the second motion mechanism 2, the bellows airbag 31 can be compressed or stretched, thereby compressing or stretching the storage space 5 formed by the deformation mechanism 3 and the pipeline to be tested.

[0046] In some embodiments, the sealing joint 32 is a cylindrical hollow structure, and the first power assembly 11 can be arranged in the hollow structure of the sealing joint 32, which can not only reasonably utilize the space, but also fix the first power assembly 11. In some embodiments, a battery pack can be used to power the first power assembly 11 to drive the first motion mechanism 1 and the second motion mechanism 2 to move.

[0047] Furthermore, the sealing ring 33 is an annular structure sleeved on the outer periphery of the sealing joint 32. In some embodiments, the sealing ring 33 can be made of elastic materials such as rubber, and abuts against the inner wall of the pipeline to be tested through the sealing joint 32, so that the bellows airbag 31 and the sealing rings 33 at both ends of the bellows airbag 31 are adapted to the inner wall of the pipeline to be tested to form a closed storage space 5. In some more preferred embodiments, a horizontal extension section 331 is further provided on the side of the sealing ring 33 abutting against the pipeline to be tested, so as to increase the contact area between the sealing ring 33 and the inner wall of the pipeline to be tested and enhance the sealing effect.

[0048] In some embodiments, the detection mechanism 4 includes: a traveling sleeve 41, a gas sensor 42 provided on the traveling sleeve 41, and a gas analyzer 43 connected to the gas sensor 42; further, the traveling sleeve 41 is a hollow sleeve structure, and a ball 411 is provided on its inner wall. Under the transmission action of external force, the traveling sleeve 41 will move synchronously with the deformation mechanism 3.

[0049] Furthermore, under the support of the ball 411, there is a gap between the accompanying sleeve 41 and the pipeline to be tested, and the gap is the detection space 412. The gas sensor 42 is arranged in the detection space 412, and is used to detect the gas escaping from the leakage of the pipeline to be tested, thereby realizing the air tightness detection process of the pipeline to be tested. In some embodiments, the gas sensor 42 is a device that can convert information such as the composition and concentration of the gas into information that can be used by personnel, instruments, computers, etc. The gas analyzer 43 is connected to the gas sensor 42, and is used to obtain the detection value of the gas sensor 42. The detection value of the gas sensor 42 can be used to determine whether there is a detection gas entering the detection space 412, so as to determine the sealing of the pipeline to be tested.

[0050] Furthermore, the galvanized steel pipe sealing detection device also includes a lubrication mechanism 6 arranged at both ends of the first motion mechanism 1 and the second motion mechanism 2. In some embodiments, the lubrication mechanism 6 includes a liquid storage disk 61 and a lubrication ring 62 arranged on the liquid storage disk 61; in some embodiments, the liquid storage disk 61 is a hollow disc-shaped structure, and its hollow part is used to store lubricating fluid. One side of the liquid storage disk 61 is connected to the connecting shaft 111. Under the transmission action of the connecting shaft 111, the liquid storage disk 61 will rotate around the connecting shaft 111 as the axis.

[0051] Furthermore, a plurality of through holes are provided on the outer circumference of the liquid storage disk 61, and the through holes are liquid permeable holes 611. In some embodiments, the lubricating ring 62 is made of sponge material and is sleeved on the outer circumference of the liquid storage disk 61. When the liquid storage disk 61 rotates, under the action of centrifugal force, the lubricating liquid in the liquid storage disk 61 will enter the lubricating ring 62 through the liquid permeable holes 611, so that when the first motion mechanism 1 and the second motion mechanism 2 are in motion, the lubricating mechanism 6 can play a certain lubricating role after contacting the inner wall of the pipeline to be tested. On the other hand, it can also have a certain neutralization and adsorption effect on the detection gas, thereby reducing the impact of the detection gas on the environment.

[0052] In some embodiments, a liquid injection port 63 is further provided on a side of the liquid reservoir 61 away from the connecting shaft 111 to facilitate timely replenishment of lubricating liquid into the liquid reservoir 61 .

[0053] Furthermore, the galvanized steel pipe sealing detection device further includes: a debugging tube 7, the first motion mechanism 1, the second motion mechanism 2, and the deformation mechanism 3 are located in the debugging tube 7, and the detection mechanism 4 is located outside the debugging tube 7. In some embodiments, the debugging tube 7 is provided with a gas source interface 71 that runs through the debugging tube 7, and the operator can inject the detection gas into the storage space 5 formed by the deformation mechanism 3 and the debugging tube 7 through the gas source interface 71. During the detection, one end of the debugging tube 7 is connected to the pipeline to be tested and the inside is connected, and the first motion mechanism 1 and the second motion mechanism 2 are driven to work, so that the sealing detection device can enter the pipeline to be tested to detect the air tightness.

[0054] Finally, it should be noted that the embodiments of the present invention disclose only preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A galvanized steel pipe sealing detection device, characterized in that: include: A first motion mechanism, a second motion mechanism, and a deformation mechanism connected between the first motion mechanism and the second motion mechanism; and a detection mechanism adapted to the deformation mechanism; Wherein, the deformation mechanism abuts against the inner wall of the pipeline to be tested and forms a closed storage space, and the storage space is used to contain the test gas; The first motion mechanism cooperates with the second motion mechanism to deform the deformation mechanism. The detection mechanism is arranged outside the pipeline to be tested and is used to detect the detection gas in the storage space to determine the sealing performance of the pipeline.

2. A galvanized steel pipe sealing detection device according to claim 1, characterized in that: The first motion mechanism includes: a first power assembly, and a first Mecanum wheel set connected to the first power assembly; The second motion mechanism includes a second power assembly and a second Mecanum wheelset connected to the second power assembly.

3. A galvanized steel pipe sealing detection device according to claim 2, characterized in that: The deformation mechanism includes: a bellows airbag, sealing joints arranged at both ends of the bellows airbag, and a sealing ring arranged on the sealing joint; The bellows airbag is an elastic airbag with a corrugated outer structure, and its two ends are respectively connected to the first motion mechanism and the second motion mechanism; The detection mechanism comprises: a carrying case, a gas sensor arranged on the carrying case, and a gas analyzer connected to the gas sensor.

4. A galvanized steel pipe sealing detection device according to claim 3, characterized in that: The accompanying sleeve is a hollow sleeve-shaped structure, and a ball is arranged on the inner wall thereof. The gap between the accompanying sleeve and the pipeline to be tested is a detection space, and the gas sensor is arranged in the detection space.

5. A galvanized steel pipe sealing detection device according to claim 2, characterized in that: A connecting shaft is provided on the output end of the first power assembly, and the first Mecanum wheelset is connected to the connecting shaft.

6. A galvanized steel pipe sealing detection device according to claim 5, characterized in that: The galvanized steel pipe sealing detection device further includes lubrication mechanisms disposed at both ends of the first motion mechanism and the second motion mechanism. The lubricating mechanism comprises a liquid storage disk and a lubricating ring arranged on the liquid storage disk.

7. A galvanized steel pipe sealing detection device according to claim 6, characterized in that: The liquid storage disk is a hollow disc-shaped structure, and its hollow part is used to store lubricating liquid. One side of the liquid storage disk is connected to the connecting shaft; A plurality of liquid permeable holes are provided on the outer circumference of the liquid storage disk; The lubrication ring is made of sponge material and is sleeved on the outer circumference of the liquid storage disk; A liquid injection port is also provided on one side of the liquid storage tray away from the connecting shaft.

8. A galvanized steel pipe sealing detection device according to claim 2, characterized in that: Also includes: A debugging tube, wherein the first motion mechanism, the second motion mechanism, and the deformation mechanism are located in the debugging tube, and the detection mechanism is located outside the debugging tube; The debugging tube is provided with a gas source interface which runs through the debugging tube and is used for injecting detection gas into the storage space formed by the deformation mechanism and the debugging tube.

Images