Galvanized steel pipe sealing performance detection equipment and gas extrusion device thereof

Abstract

The utility model discloses galvanized steel pipe sealing performance detection equipment and a gas extrusion device thereof, and belongs to the technical field of galvanized steel pipe detection, the galvanized steel pipe sealing performance detection equipment comprises a first movement mechanism, a second movement mechanism, and a deformation mechanism connected between the first movement mechanism and the second movement 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 and a gas squeezing device thereof. 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 gas extrusion device in the first aspect, comprising:

[0005] A first motion mechanism, a second motion mechanism, and a deformation mechanism connected between the first motion mechanism and the second motion 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 accommodate the detection gas; the first motion mechanism and the second motion mechanism cooperate with each other to cause the deformation mechanism to deform so as to squeeze the detection gas in the storage space.

[0006] Preferably, the first motion mechanism comprises: a first power assembly, and a first Mecanum wheelset connected to the first power assembly; the second motion mechanism comprises a second power assembly, and a second Mecanum wheelset connected to the second power assembly.

[0007] Preferably, 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 external structure, and its two ends are respectively connected to the first motion mechanism and the second motion mechanism.

[0008] Preferably, 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.

[0009] Preferably, the gas extrusion device further comprises a lubrication mechanism disposed at both ends of the first motion mechanism and the second motion mechanism, and the lubrication mechanism comprises a liquid storage disk and a lubrication ring disposed on the liquid storage disk.

[0010] Preferably, the liquid storage disk is a hollow disc-shaped structure, the hollow part of which is used to store lubricating liquid, one side of the liquid storage disk is connected to the connecting shaft, and a plurality of liquid permeable holes are opened on the outer circumference of the liquid storage disk.

[0011] Preferably, 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 the side of the liquid storage disk away from the connecting shaft.

[0012] The second aspect of the utility model provides a galvanized steel pipe sealing detection device, comprising the gas squeezing device described in any one of the above schemes, and also comprising: a gas detection device.

[0013] By adopting the above technical solution, the utility model mainly has the following technical effects:

[0014] The first motion mechanism and the second motion mechanism cooperate with each other to deform the deformation mechanism to squeeze the detection gas in the storage space, so that the detection gas escapes through the leakage of the pipeline to be tested, thereby solving the technical problem of low efficiency of sealing detection by immersing the galvanized steel pipe in water to observe whether there are bubbles, and achieving the technical effect of quickly detecting the sealing of the galvanized steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a gas extrusion device of the utility model;

[0016] Figure 2 It is a cross-sectional view of a gas extrusion device of the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the explosion structure of a gas extrusion device.

[0018] The meanings of the reference numerals are as follows:

[0019] 1. first motion mechanism; 11. first power assembly; 111. connecting shaft; 12. first Mecanum wheel set;

[0020] 2. a second motion mechanism; 21. a second power assembly; 22. a second Mecanum wheel set;

[0021] 3. Deformation mechanism; 31. Bellows airbag; 32. Sealing joint; 33. Sealing ring; 331. Extension section;

[0022] 4. Storage space;

[0023] 5. Lubrication mechanism; 51. Liquid storage disk; 511. Liquid permeable hole; 52. Lubrication ring; 53. Liquid filling port. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] Example 1: Please refer to Figure 1-Figure 3 The utility model provides a gas squeezing device, which cooperates with a gas detection device on the outside of a galvanized steel pipe and is used to detect the sealing of the galvanized steel pipe. The utility model comprises: a first motion mechanism 1, a second motion mechanism 2, and a deformation mechanism 3 connected between the first motion mechanism 1 and the second motion mechanism 2; wherein the deformation mechanism 3 abuts against the inner wall of the pipe to be tested and forms a closed storage space 4, and the storage space 4 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 to squeeze the detection gas in the storage space 4.

[0027] 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.

[0028] 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.

[0029] 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 4, 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.

[0030] 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 4 formed by the deformation mechanism 3 and the pipeline to be tested.

[0031] 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.

[0032] 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 4. 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.

[0033] Furthermore, the galvanized steel pipe sealing detection device also includes a lubrication mechanism 5 arranged at both ends of the first motion mechanism 1 and the second motion mechanism 2. In some embodiments, the lubrication mechanism 5 includes a liquid storage disk 51 and a lubrication ring 52 arranged on the liquid storage disk 51; in some embodiments, the liquid storage disk 51 is a hollow disc-shaped structure, and its hollow part is used to store lubricating fluid. One side of the liquid storage disk 51 is connected to the connecting shaft 111. Under the transmission action of the connecting shaft 111, the liquid storage disk 51 will rotate around the connecting shaft 111 as the axis.

[0034] Furthermore, a plurality of through holes are provided on the outer circumference of the liquid storage disk 51, and the through holes are liquid permeable holes 511. In some embodiments, the lubricating ring 52 is made of sponge material and is sleeved on the outer circumference of the liquid storage disk 51. When the liquid storage disk 51 rotates, under the action of centrifugal force, the lubricating liquid in the liquid storage disk 51 will enter the lubricating ring 52 through the liquid permeable holes 511, so that when the first motion mechanism 1 and the second motion mechanism 2 are in motion, the lubricating mechanism 5 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.

[0035] In some embodiments, a liquid injection port 53 is further provided on a side of the liquid reservoir 51 away from the connecting shaft 111 to facilitate timely replenishment of lubricating liquid into the liquid reservoir 51 .

[0036] Embodiment 2: The utility model provides a galvanized steel pipe sealing detection device, including the gas squeezing device described in Embodiment 1, and also including: a gas detection device, wherein the gas detection device is used to detect the detection gas escaping from the leakage point of the pipeline to be tested, thereby realizing the air tightness detection process of the galvanized steel pipe.

[0037] 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 gas extrusion 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; 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 accommodate the detection gas; the first motion mechanism and the second motion mechanism cooperate with each other to cause the deformation mechanism to deform so as to squeeze the detection gas in the storage space.

2. A gas extrusion 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 wheel set connected to the second power assembly.

3. A gas extrusion 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 external structure, and its two ends are respectively connected to the first motion mechanism and the second motion mechanism.

4. A gas extrusion 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.

5. A gas extrusion device according to claim 4, characterized in that: It also includes lubrication mechanisms arranged at both ends of the first motion mechanism and the second motion mechanism. The lubrication mechanism includes a liquid storage disk and a lubrication ring arranged on the liquid storage disk.

6. A gas extrusion device according to claim 5, 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, and a plurality of liquid permeable holes are opened on the outer circumference of the liquid storage disk.

7. A gas extrusion device according to claim 6, characterized in that: The lubricating ring is made of sponge material and is sleeved on the outer circumference of the liquid storage disc; a liquid injection port is also provided on the side of the liquid storage disc away from the connecting shaft.

8. A galvanized steel pipe sealing detection device, characterized in that: The gas squeezing device comprises the gas squeezing device as described in any one of claims 1 to 7, and further comprises: a gas detection device.

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