Rapid permeability detection device for low-oil-permeability polyurethane oil delivery pipe
By introducing a sealing cover and adjustment ring structure driven by electric push rod into the penetration test red ink test machine, the problem of inconvenience in the prior art is solved, and efficient permeability detection is achieved.
Patent Information
- Application Number
- CN202422421569.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-30
AI Technical Summary
When the existing penetration test red ink tester detects the permeability of polyurethane oil pipes, it is not convenient to pick up and place multiple oil pipe samples at the same time, resulting in low detection efficiency.
A fast permeability detection device for low-oil permeability polyurethane oil pipes is designed, and a sealing cover and adjustment ring structure driven by electric push rod can be used to place multiple oil pipe samples at the same time and fixed by stretching rods and blocking strips, simplifying the sample pick-up and placement process.
It realizes conveniently picking and placing multiple polyurethane oil tube samples at the same time, improving the detection efficiency and meeting the needs of multiple sample testing.
Smart Images
Figure CN223217331U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of polyurethane oil pipeline detection devices, and in particular relates to a rapid permeability detection device for a low-oil-permeability polyurethane oil pipeline. Background Art
[0002] Polyurethane oil pipelines excel in oil permeability. Due to the material's inherent closed-cell structure, low water permeability, and corrosion resistance, polyurethane oil pipelines are widely used in oil transportation. Oil permeability refers to the rate or degree to which a material allows oil to pass through its internal structure under specific conditions. Low oil permeability is a key performance indicator for polyurethane oil pipelines. Regular maintenance and inspection are required to promptly identify and repair potential leaks or damage, thereby reducing oil permeability and ensuring safe transportation.
[0003] The principle of detecting the oil permeability of polyurethane oil pipes is mainly based on the penetration effect of liquid. The detection process is to place the polyurethane oil pipe sample inside a sealed can containing a penetrant containing fluorescent dye or coloring dye. Under static conditions of vacuum, the penetrant containing fluorescent dye or coloring dye will penetrate into the surface of the oil pipe. Through the penetration and diffusion process of the penetrant containing fluorescent dye or coloring dye on the surface of the polyurethane oil pipe sample, it is possible to quickly detect whether the polyurethane oil pipe sample has gaps or cracks, and determine whether its oil permeability is within the standard range.
[0004] The working principle of the red ink penetrant test machine is based on the permeability and diffusion of liquids. It is suitable for rapid testing of the permeability performance of polyurethane oil pipes. The main structure of the red ink penetrant test machine includes a test machine main unit and a test sealed vacuum tank. It is used together with the supporting vacuum pumping equipment. The specific testing process is to install the polyurethane oil pipe sample in the test sealed vacuum tank, operate the test machine main unit, and observe the penetration and diffusion of the red ink penetrant on the outer surface of the polyurethane oil pipe. In the above operation, a single polyurethane oil pipe sample is generally clamped by a clamp, and the polyurethane oil pipe sample and the top cover of the sealed vacuum tank are combined into an integral structure. When taking and placing the polyurethane oil pipe sample, the top cover needs to be opened and closed continuously, and it is inconvenient to test multiple polyurethane oil pipe samples at the same time, which is relatively inconvenient.
[0005] When the existing red ink penetration tester is used to detect the permeability of polyurethane oil pipelines, there is a problem that there is no design that is convenient for taking and placing multiple polyurethane oil pipeline samples. Therefore, this application proposes a rapid permeability detection device for low oil permeability polyurethane oil pipelines. Utility Model Content
[0006] The purpose of the utility model is to provide a low oil permeability polyurethane oil pipeline permeability rapid detection device to solve the problem that the sealing tank of the permeability test red ink test machine proposed in the above background technology does not have a design that is convenient for taking and placing multiple polyurethane oil pipeline samples.
[0007] To achieve the above purpose, the utility model provides the following technical solutions: a low oil permeability polyurethane oil pipeline permeability rapid detection device, comprising
[0008] A permeability testing device for testing the permeability of a polyurethane oil pipeline B comprises a permeability testing host, a permeability vacuum tank placed on the surface of the permeability testing host, and a sealing cover sealed to the permeability vacuum tank;
[0009] The lifting assembly includes an electric push rod with its bottom end mounted on the permeability detection host, a fixed cross arm connected to the top of the electric push rod, and a connecting rod passing through the fixed cross arm and the sealing cover, wherein the outer side of the connecting rod is rotatably connected to an adjusting ring;
[0010] The stretching assembly passing through the adjusting ring comprises a limiting ring installed on the adjusting ring, a stretching rod passing through the limiting ring, a connecting ball connected to the bottom end of the stretching rod, and blocking strips evenly distributed outside the connecting ball.
[0011] Preferably, the connecting rod includes a vertical rod passing through the fixed horizontal arm and the center of the sealing cover, a first circular plate installed at the top end of the vertical rod, and a second circular plate installed at the bottom end of the vertical rod.
[0012] Preferably, the adjustment ring is flush with the surface on the same side of the second circular plate, and the adjustment ring and the second circular plate have the same thickness.
[0013] Preferably, the adjustment ring is provided with a limiting convex ring embedded in the inner part of the outer surface of the second circular plate.
[0014] Preferably, the limiting ring is a circular tube structure with one end open, and a threaded ring is provided on the open end of the limiting ring to be screwed together with the adjusting ring thread.
[0015] Preferably, a pull ring is provided at the top of the stretching rod passing through the center of the limiting ring, a fixing ring is welded on the outside of the stretching rod, and a contraction spring is sleeved on the outside of the stretching rod near the top, and the two ends of the contraction spring are respectively connected to the limiting ring and the fixing ring.
[0016] Preferably, the blocking bar is in an inclined state, and the end of the blocking bar away from the connecting ball is in a bent state.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] In the utility model, the sealing tank of the red ink testing machine is designed to facilitate the taking and placing of multiple polyurethane oil tube samples. Four stretching rods can be evenly arranged on the adjustment ring, and four polyurethane oil tubes B can be placed at the same time. Different numbers of stretching rods and polyurethane oil tubes B can be set according to actual needs. The sealing cover is in a suspended state under the drive of the electric push rod, so that both hands can be freed for easy taking and placing of the polyurethane oil tubes B. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural diagram of the utility model;
[0020] Figure 2 This is a schematic diagram of the top view of the adjustment ring of the utility model;
[0021] Figure 3 For the utility model Figure 1 A is an enlarged cross-sectional structural diagram of the cloth;
[0022] Figure 4 This is a schematic diagram of the main structure of the stretching rod of the present utility model;
[0023] In the figure: 11, permeability detection host; 12, permeability vacuum tank; 13, sealing cover; 21, electric push rod; 22, fixed cross arm; 23, connecting rod; 31, limiting ring; 32, stretching rod; 33, connecting ball; 34, blocking bar; 35, contraction spring; 231, adjusting ring; 321, fixing ring; 2311, limiting convex ring. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] Example
[0026] See also Figures 1 to 4, the utility model provides a technical solution: a rapid permeability detection device for a low-oil permeability polyurethane oil pipeline, including a permeability detection device for detecting the permeability of a polyurethane oil pipeline B, including a permeability detection host 11, a permeability vacuum tank 12 placed on the surface of the permeability detection host 11, and a sealing cover 13 sealed with the permeability vacuum tank 12. The permeability detection host 11 and the permeability vacuum tank 12 are used in combination with a matching vacuum pump, such as a vacuum pump. The principle and method of rapidly detecting the permeability of the polyurethane oil pipeline B by utilizing the permeability and diffusion properties of the liquid are conventional technical means, which will not be described in detail in this application; a lifting component, including an electric push rod 21 with a bottom end mounted on the permeability detection host 11, a fixed cross arm 22 connected to the top of the electric push rod 21, and a connecting rod 23 passing through the fixed cross arm 22 and the sealing cover 13. The electric push rod 21 is screwed together with the permeability detection host 11 and the fixed cross arm 22 by screws, and the connecting rod 23 is screwed together with the fixed cross arm 22 and the sealing cover 13 by screws. Conventional sealing treatment, the outer side of the connecting rod 23 is rotatably connected with an adjusting ring 231, the adjusting ring 231 is limited by the connecting rod 23, and the adjusting ring 231 can be rotated to facilitate changing the position of the stretching assembly on the adjusting ring 231 and the polyurethane oil delivery pipe B, so as to facilitate taking and placing the polyurethane oil delivery pipe B; the stretching assembly passing through the adjusting ring 231 includes a limiting ring 31 installed on the adjusting ring 231, a stretching rod 32 passing through the limiting ring 31, a connecting ball 33 connected to the bottom end of the stretching rod 32, and evenly distributed on the outside of the connecting ball 33. The blocking bar 34, the limiting ring 31 and the adjusting ring 231 are screwed together to firmly hold the limiting ring 31. When installing the polyurethane oil pipe B, pinch the blocking bar 34 made of elastic metal material, pass the polyurethane oil pipe B through the blocking bar 34 and then put it on the outside of the stretching rod 32. The blocking bar 34 blocks the bottom end of the polyurethane oil pipe B to prevent it from falling. When removing the polyurethane oil pipe B, pull up the stretching rod 32 and pull down the polyurethane oil pipe B at the same time. The blocking bar 34 is bent and deformed by the pressure of the polyurethane oil pipe B.
[0027] In this embodiment, the connecting rod 23 includes a vertical rod passing through the fixed horizontal arm 22 and the center of the sealing cover 13, a first circular plate installed at the top of the vertical rod, and a second circular plate installed at the bottom of the vertical rod. The adjustment ring 231 is flush with the surface on the same side of the second circular plate, and the adjustment ring 231 and the second circular plate have the same thickness. The adjustment ring 231 is provided with a limiting convex ring 2311 embedded in the inner part of the outer surface of the second circular plate. The limiting convex ring 2311 is rotatably connected to the connecting rod 23, which is conducive to changing the angle of the adjustment ring 231.
[0028] In this embodiment, the limiting ring 31 is a circular tube structure with one end open, and a threaded ring is provided on the open end of the limiting ring 31 to be threadedly connected to the adjustment ring 231. The connection method between the limiting ring 31 and the adjustment ring 231 is simple, and the limiting ring 31 is easy to disassemble and assemble.
[0029] In this embodiment, a pull ring is provided at the top of the stretching rod 32 that passes through the center of the limiting ring 31. The pull ring is screwed to the stretching rod 32 by a thread, which is convenient for disassembly and assembly of the pull ring. A fixing ring 321 is welded to the outside of the stretching rod 32. A contraction spring 35 is provided on the outside of the stretching rod 32 near the top. The two ends of the contraction spring 35 are respectively connected to the limiting ring 31 and the fixing ring 321. When the stretching rod 32 is pulled up, the contraction spring 35 is in a contracted state. Under the action of the elastic force of the contraction spring 35, the stretching rod 32 is in a stable state in the vertical direction.
[0030] In this embodiment, the blocking bar 34 is in an inclined state, and the end of the blocking bar 34 away from the connecting ball 33 is in a bent state. The blocking bar 34 blocks the bottom end of the polyurethane oil delivery pipe B to prevent it from falling.
[0031] The working principle and use process of this utility model:
[0032] When detecting whether the permeability of the polyurethane oil delivery pipe B is within the standard range, the electric push rod 21 operates to move the fixed cross arm 22 and the connecting rod 23 upward, and the adjustment ring 231 moves upward;
[0033] When installing the polyurethane oil pipe B, pinch the barrier strip 34 made of elastic metal material with one hand;
[0034] With one hand, the top of the polyurethane oil delivery pipe B is passed through the blocking bar 34 and then sleeved onto the outside of the stretching rod 32. The bottom of the polyurethane oil delivery pipe B passes through the blocking bar 34. The blocking bar 34, which has been deformed and reset, blocks the bottom of the polyurethane oil delivery pipe B to prevent it from falling. The polyurethane oil delivery pipe B is restrained by the stretching rod 32, keeping the polyurethane oil delivery pipe B in a stable state and preventing it from undergoing significant deformation during the inspection process.
[0035] The electric push rod 21 operates to move the fixed cross arm 22 and the connecting rod 23 downward, and the adjusting ring 231 and the polyurethane oil delivery pipe B downward. The polyurethane oil delivery pipe B enters the penetration vacuum tank 12. The polyurethane oil delivery pipe B and the penetrant liquid in the penetration vacuum tank 12 are used to quickly detect the permeability of the polyurethane oil delivery pipe B by using the permeability and diffusivity of the penetrant liquid.
[0036] To sum up: the sealing tank of the transparent test red ink test machine is designed to facilitate the removal and placement of multiple polyurethane oil tube samples. Four stretching rods 32 can be evenly arranged on the adjustment ring 231, and four polyurethane oil tubes B can be placed at the same time. Different numbers of stretching rods 32 and polyurethane oil tubes B can be set according to actual needs. The sealing cover 13 is in a suspended state driven by the electric push rod 21, so both hands can be freed for easy removal and placement of the polyurethane oil tubes B.
[0037] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rapid permeability detection device for low oil permeability polyurethane oil pipeline, characterized by: include A permeability detection device for detecting the permeability of a polyurethane oil pipeline B comprises a permeability detection host (11), a permeability vacuum tank (12) placed on the surface of the permeability detection host (11), and a sealing cover (13) hermetically connected to the permeability vacuum tank (12); A lifting assembly comprises an electric push rod (21) whose bottom end is mounted on a permeability detection host (11), a fixed cross arm (22) connected to the top of the electric push rod (21), and a connecting rod (23) passing through the fixed cross arm (22) and the sealing cover (13), wherein the outer side of the connecting rod (23) is rotatably connected to an adjusting ring (231); A stretching assembly passing through an adjusting ring (231) comprises a limiting ring (31) mounted on the adjusting ring (231), a stretching rod (32) passing through the limiting ring (31), a connecting ball (33) connected to the bottom end of the stretching rod (32), and blocking bars (34) evenly distributed on the outside of the connecting ball (33).
2. The device for rapid detection of permeability of a low oil permeability polyurethane oil pipeline according to claim 1, characterized in that: The connecting rod (23) comprises a vertical rod passing through the fixed horizontal arm (22) and the center of the sealing cover (13), a first circular plate installed at the top end of the vertical rod, and a second circular plate installed at the bottom end of the vertical rod.
3. The device for rapid detection of permeability of a low oil permeability polyurethane oil pipeline according to claim 2, characterized in that: The adjustment ring (231) is flush with the surface on the same side of the second circular plate, and the adjustment ring (231) and the second circular plate have the same thickness.
4. The device for rapid detection of permeability of a low oil permeability polyurethane oil pipeline according to claim 3, characterized in that: The adjusting ring (231) is provided with a limiting convex ring (2311) embedded in the inner portion of the outer surface of the second circular plate.
5. The device for rapid detection of permeability of a low oil permeability polyurethane oil pipeline according to claim 1, characterized in that: The limiting ring (31) is a circular tube structure with one end open, and a threaded ring is provided on the open end of the limiting ring (31) and is threadedly connected to the adjusting ring (231).
6. The device for rapid detection of permeability of a low oil permeability polyurethane oil pipeline according to claim 1, characterized in that: The stretching rod (32) is provided with a pull ring at the top end thereof passing through the center of the limiting ring (31), a fixing ring (321) is welded to the outside of the stretching rod (32), and a contraction spring (35) is sleeved on the outside of the stretching rod (32) near the top end, and the two ends of the contraction spring (35) are respectively connected to the limiting ring (31) and the fixing ring (321).
7. The device for rapid detection of permeability of a low oil permeability polyurethane oil pipeline according to claim 1, characterized in that: The blocking bar (34) is in an inclined state, and one end of the blocking bar (34) away from the connecting ball (33) is in a bent state.