A fluid pressure resistance testing device for seamless steel pipe processing

Abstract

The present invention discloses a fluid pressure resistance testing device for seamless steel pipe processing, which relates to the technical field of steel pipe pressure resistance testing; it includes a test booster, two pipe end positioning parts are installed on the test booster, and clamping driving parts are respectively installed on the two pipe end positioning parts; the two pipe end positioning parts are respectively used to switch the clamping positions of the ends of the seamless steel pipe; magnetic force insurance parts are respectively installed on the four clamping driving parts; the four magnetic force insurance parts are respectively used to plug into the two pipe end positioning parts; a movable pressure measuring part is installed on the two pipe end positioning parts; it can be used to quickly clamp the end of the steel pipe for positioning, and can ensure the stability during the pressure application test. This structure has stable positioning and improves the comprehensiveness of the pressure resistance test at the end of the steel pipe; to solve the problem that the current fluid pressure resistance testing device for seamless steel pipe processing usually has quick-release joints, and the joints will surround and squeeze the end of the pipe fitting, which is not convenient for explosion-proof pipe to switch the clamping position of the steel pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe pressure resistance testing, and specifically to a fluid pressure resistance testing device for seamless steel pipe processing. Background Technique

[0002] Hydrostatic testing is a common method for the pressure resistance testing of seamless steel pipes. When conducting hydrostatic testing, first, both ends of the steel pipe need to be sealed, and water is injected inside through a booster pump. During the testing process, the pressure of the water will gradually increase until the specified test pressure is reached. The test usually lasts for a certain period of time to observe the performance of the pipeline under high pressure and check for leakage, deformation, or rupture. This method is widely used in various stages such as steel pipe production, installation, and use, and is an important means to ensure the quality and safety of steel pipes. Currently, the fluid pressure resistance testing device for seamless steel pipe processing usually has quick-release joints. During actual pressure resistance testing, the joints will surround and squeeze the ends of the pipe fittings, making it inconvenient to replace the steel pipe clamping position for explosion-proof pipes. The end of the steel pipe is the main position for steel pipe connection. If the pressure resistance test data at the end of the steel pipe is not accurate enough, it is easy to cause test omissions. At the same time, it is not convenient for staff to test the deformation degree and pressure resistance effect of different positions of the steel pipe. At the same time, air bubbles are likely to exist inside the steel pipe, affecting the accuracy of hydrostatic testing and making it inconvenient to detect and eliminate bubbles.

[0003] Therefore, we propose a fluid pressure resistance testing device for seamless steel pipe processing. Summary of the Invention

[0004] The purpose of the present invention is to provide a fluid pressure resistance testing device for seamless steel pipe processing to solve the problem in the above background technique that the currently used fluid pressure resistance testing device for seamless steel pipe processing usually has quick-release joints, and the joints will surround and squeeze the ends of the pipe fittings, making it inconvenient to replace the steel pipe clamping position for explosion-proof pipes.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A fluid pressure resistance testing device for seamless steel pipe processing, including a test booster component. Two pipe end positioning components are installed on the test booster component, and clamping driving components are respectively installed on the two pipe end positioning components; the two pipe end positioning components are respectively used to switch the clamping positions of the ends of the seamless steel pipe; magnetic force insurance components are respectively installed on the four clamping driving components; the four magnetic force insurance components are respectively used to insert the two pipe end positioning components; the magnetic force insurance components are used for explosion-proof pipes; a movable pressure measuring component is installed on the two pipe end positioning components; the movable pressure measuring component is used to test the local pressure resistance performance of the seamless steel pipe; a bubble interference elimination component is installed on the left pipe end positioning component; the bubble interference elimination component is used to eliminate bubbles; the test booster component includes: a test connection plate and a water inlet pipe. The water inlet pipe is fixedly installed on the test connection plate; a pressure gauge is provided on the water inlet pipe.

[0006] Preferably, the movable pressure measuring member further includes a pressure measuring rubber ball and an end bolt. The pressure measuring rubber ball is fixedly installed at the end of the pressure measuring steel wire. The end bolt is threadedly connected to the docking pipe on the side close to the drain pipe. The end bolt is used to limit the pressure measuring rubber ball.

[0007] Preferably, the bubble interference eliminating member further includes a magnet ring and a rotary magnet ring. The magnet ring is rotatably sleeved on the exhaust pipe. Two magnets are provided inside the magnet ring. The rotary magnet ring is rotatably sleeved inside the exhaust pipe. Two magnets are provided on the outer side of the rotary magnet ring. The two magnets inside the magnet ring magnetically attract the two magnets on the outer side of the rotary magnet ring.

[0008] Preferably, the test boosting member further includes a pressure pump and a drain pipe. The pressure pump is fixedly installed on the test connecting plate, and the pressure pump is pipe-connected to the water inlet pipe. The drain pipe is fixedly installed on the test connecting plate. A valve is provided on the drain pipe. Hoses are respectively provided at the ends of the water inlet pipe and the drain pipe.

[0009] Preferably, the bubble interference eliminating member includes an exhaust pipe, a conductive sheet and an indicator light. The exhaust pipe is fixedly installed on the left docking pipe. Two conductive sheets are fixedly installed inside the exhaust pipe, and there is a gap between the two conductive sheets. A valve is provided on the exhaust pipe. The indicator light is fixedly installed on the exhaust pipe. The two conductive sheets and the indicator light are connected in series to a power supply.

[0010] Preferably, the clamping driving member includes a clamping thread ring, a pressure switch, an extrusion shaft and a tension spring. Two clamping thread rings are threadedly connected to the installation cylinder, and the inner sides of the two clamping thread rings are of inclined surface structures. The two clamping thread rings are respectively used for squeezing and fitting two rings of extrusion inclined surface blocks. Pressure switches are respectively fixedly installed on the two clamping thread rings, and extrusion shafts are respectively slidably inserted on the two clamping thread rings. The extrusion shafts are located in front of the pressure switches. A tension spring is sleeved on the extrusion shaft, and the tension spring is connected between the clamping thread ring and the extrusion shaft. The ends of the two extrusion shafts are respectively attached to the two retaining rings.

[0011] Preferably, the pipe end positioning member includes a docking pipe, an installation cylinder, a pipe end docking ring, an extrusion inclined surface block and a retaining ring. There are two docking pipes, and the two docking pipes are respectively fixedly installed on the hoses at the ends of the water inlet pipe and the drain pipe. Installation cylinders are respectively fixedly installed at the ends of the two docking pipes. Threads are respectively provided on the outer sides of the two installation cylinders. Pipe end docking rings are respectively fixedly installed inside the two installation cylinders, and the inner sides of the two pipe end docking rings are respectively used for fitting the seamless steel pipe to be detected. Two rings of extrusion inclined surface blocks are rotatably installed inside the two installation cylinders, and the two rings of extrusion inclined surface blocks are used for squeezing and clamping the seamless steel pipe. Two retaining rings are respectively fixedly sleeved on the two installation cylinders, and a slot is respectively provided on each of the two retaining rings.

[0012] Preferably, the bubble interference eliminating component also includes: a cleaning sponge, the cleaning sponge is fixedly mounted on the rotating magnet ring, and the side surface of the cleaning sponge is used to fit and wipe the exhaust pipe and the conductive sheet.

[0013] Preferably, the magnetic safety component includes: a safety plug-in shaft, a safety electromagnet and a safety spring, and the two clamping thread circles are respectively slidably plugged with a safety plug-in shaft; the two clamping thread circles are respectively fixedly mounted with a safety electromagnet, and the safety plug-in shaft passes through the safety electromagnet; the two safety plug-in shafts are respectively used to be plugged into the slots on the two retaining rings; the safety electromagnet is used to magnetically attract the safety plug-in shaft; a safety spring is sleeved on the safety plug-in shaft, and the safety spring is located between the safety plug-in shaft and the safety electromagnet; the front pressure switch is electrically connected to the rear safety electromagnet, and the rear pressure switch is electrically connected to the front safety electromagnet.

[0014] Preferably, the movable pressure measuring part includes: a pressure measuring wire and a sleeve bolt, the pressure measuring wire passes through two mounting tubes; the sleeve bolt is threadedly connected to the butt joint pipe close to the side of the water inlet pipe; a through hole is provided in the middle of the sleeve bolt, and a rubber ring is provided in the through hole on the sleeve bolt; the pressure measuring wire is slidably sleeved in the rubber ring on the sleeve bolt.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention adopts a pipe end positioning member in combination with a clamping driving member, which can be used to quickly clamp the end of the steel pipe for positioning, thereby ensuring stability during pressure testing and stable positioning. At the same time, two circles of extrusion bevel blocks can be used to clamp the end of the steel pipe, which is convenient for rotating the clamping position. By changing the clamping position, the comprehensiveness of the pressure resistance test of the steel pipe end is improved. A magnetic safety member is used in combination with a pressure switch to provide safety protection for explosion-proof pipes, thereby avoiding improper operation by staff. By means of automatic electromagnetic control limiting, it is ensured that at least one of the two circles of extrusion bevel blocks can clamp the steel pipe, otherwise the rotation work cannot be performed.

[0017] The use of movable pressure measuring parts can make it easier for workers to test the expansion deformation of steel pipes at different positions. It can be more intuitive to detect through water leakage, which can improve the comprehensiveness of deformation detection at different positions of steel pipes. The movable pressure measuring parts can be pulled out to adjust the position, and the control is simple and convenient. At the same time, it can also facilitate the scraping of moisture on the inner surface of the steel pipe to prevent residual moisture from accelerating oxidation and rust.

[0018] The use of bubble interference exclusion parts can facilitate staff to detect bubbles in time during the water pressure test of steel pipes, and can avoid air bubbles affecting the detection accuracy. When bubbles appear, they can be detected and exhausted in time to avoid affecting the deformation pressure detection accuracy of steel pipes due to the difference between air density and water density. At the same time, it is also convenient for timely prompts when the pressure in this structure drops and air enters. Brief Description of the Drawings

[0019] Figure 1 Fig. is a schematic view of the overall structure of a fluid pressure resistance testing device for seamless steel pipe processing according to the present invention;

[0020] Figure 2 Fig. is a schematic view of the bottom structure of a fluid pressure resistance testing device for seamless steel pipe processing according to the present invention;

[0021] Figure 3 Fig. is a cross-sectional view of the internal structure of a fluid pressure resistance testing device for seamless steel pipe processing according to the present invention;

[0022] Figure 4 Fig. is a schematic view of the pipe end positioning member structure according to the present invention;

[0023] Figure 5 According to the present invention Figure 3 Enlarged view of the structure of area C;

[0024] Figure 6 Fig. is a schematic view of the installation position of the extrusion inclined block according to the present invention;

[0025] Figure 7 Fig. is a schematic view of the structure of the movable pressure measuring member according to the present invention;

[0026] Figure 8 According to the present invention Figure 6 Enlarged view of the structure of area E;

[0027] Figure 9 According to the present invention Figure 6 Enlarged view of the structure of area F;

[0028] Figure 10 Fig. is a cross-sectional view of the magnet ring structure according to the present invention.

[0029] In the figures: 1. Test boosting member; 101. Test connection plate; 102. Water inlet pipe; 103. Pressure pump; 104. Drain pipe; 2. Pipe end positioning member; 201. Docking pipe; 2011. Installation cylinder; 202. Pipe end docking ring; 203. Extrusion inclined block; 204. Retaining ring; 3. Clamping driving member; 301. Clamping thread ring; 302. Pressure switch; 303. Extrusion shaft; 304. Tension spring; 4. Magnetic force insurance member; 401. Insurance insertion shaft; 402. Insurance electromagnet; 403. Insurance spring; 5. Movable pressure measuring member; 501. Pressure measuring wire; 502. Socketing bolt; 503. Pressure measuring rubber ball; 504. End bolt; 6. Air bubble interference elimination member; 601. Exhaust cylinder; 602. Conductive sheet; 603. Indicator light; 604. Magnet ring; 605. Rotary magnet ring; 606. Cleaning sponge. Detailed Description of the Invention

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0031] Embodiment 1: Please refer to Figures 1 to 10 as shown in

[0032] The present invention provides a technical solution: A fluid pressure resistance testing device for seamless steel pipe processing, including a test booster 1, two pipe end positioning members 2 are installed on the test booster 1, and clamping driving members 3 are respectively installed on the two pipe end positioning members 2; the two pipe end positioning members 2 are respectively used to switch the clamping positions of the ends of the seamless steel pipe; magnetic safety members 4 are respectively installed on the four clamping driving members 3; the four magnetic safety members 4 are respectively used to insert the two pipe end positioning members 2; the magnetic safety members 4 are used for explosion-proof pipes; a movable pressure measuring member 5 is installed on the two pipe end positioning members 2; the movable pressure measuring member 5 is used to test the local pressure resistance performance of the seamless steel pipe; a bubble interference elimination member 6 is installed on the left pipe end positioning member 2; the bubble interference elimination member 6 is used to eliminate bubbles; the test booster 1 includes: a test connecting plate 101 and a water inlet pipe 102, the water inlet pipe 102 is fixedly installed on the test connecting plate 101; a pressure gauge is provided on the water inlet pipe 102.

[0033] Among them, the test booster 1 further includes: a pressure pump 103 and a drain pipe 104. The pressure pump 103 is fixedly installed on the test connection plate 101, and the pressure pump 103 is pipe-connected to the water inlet pipe 102; the drain pipe 104 is fixedly installed on the test connection plate 101; a valve is provided on the drain pipe 104; hoses are respectively provided at the end parts of the water inlet pipe 102 and the drain pipe 104; the pipe end positioning member 2 includes: a butt joint pipe 201, an installation cylinder 2011, a pipe end butt joint ring 202, an extrusion inclined block 203 and a retaining ring 204. There are two butt joint pipes 201, and the two butt joint pipes 201 are respectively fixedly installed on the hoses at the end parts of the water inlet pipe 102 and the drain pipe 104; installation cylinders 2011 are respectively fixedly installed at the end parts of the two butt joint pipes 201; threads are respectively provided on the outer sides of the two installation cylinders 2011; pipe end butt joint rings 202 are respectively fixedly installed on the inner sides of the two installation cylinders 2011, and the inner sides of the two pipe end butt joint rings 202 are respectively used for fitting the seamless steel pipe to be detected; two circles of extrusion inclined blocks 203 are rotatably installed on the inner sides of the two installation cylinders 2011, and the two circles of extrusion inclined blocks 203 are used for extruding and clamping the seamless steel pipe; two retaining rings 204 are respectively fixedly sleeved on the two installation cylinders 2011, and a circle of slots is respectively provided on the two retaining rings 204; the clamping driving member 3 includes: a clamping thread ring 301, a pressure switch 302, an extrusion shaft 303 and a tension spring 304. Two clamping thread rings 301 are threadedly connected to the installation cylinder 2011, and the inner sides of the two clamping thread rings 301 are of an inclined surface structure; the two clamping thread rings 301 are respectively used for extruding and fitting the two circles of extrusion inclined blocks 203; pressure switches 302 are respectively fixedly installed on the two clamping thread rings 301, and extrusion shafts 303 are respectively slidably inserted on the two clamping thread rings 301, and the extrusion shafts 303 are located on the front sides of the pressure switches 302; tension springs 304 are sleeved on the extrusion shafts 303, and the tension springs 304 are connected between the clamping thread rings 301 and the extrusion shafts 303;The end parts of the two extrusion shafts 303 are respectively attached to the two retaining rings 204. By using the pipe end positioning member 2 to cooperate with the clamping driving member 3, it can be used to quickly clamp the end of the steel pipe for positioning, ensuring stability during the pressure test. This structure has stable positioning. At the same time, the two rings of extrusion inclined blocks 203 can be used to clamp the end of the steel pipe, facilitating the rotation of the clamping position. By changing the clamping position, the comprehensiveness of the pressure test on the end of the steel pipe can be improved, avoiding the problem that the pressure resistance performance of the end of the steel pipe naturally increases after the traditional joint clamps the end of the steel pipe, resulting in the inability to test the pressure resistance strength of the end of the steel pipe. Especially for the end of the steel pipe, subsequent connection work is required, and the pressure resistance performance of the end of the steel pipe is crucial. This structure uses the clamping driving member 3 to clamp at two places at the end of the steel pipe, enabling quick rotation of the clamping position to ensure comprehensive detection. When the end of the steel pipe is deformed or cracked after being pressurized, it can be known in a timely manner, and the structure is more reasonable. Tighten the four clamping thread rings 301, and the extrusion inclined block 203 arranged by moving extrusion can be contracted inward to clamp the steel pipe. Once the steel pipe is clamped and fixed, when the pressure test on the pipe end is required subsequently, rotating one of the two clamping thread rings 301 on the same side can release the extrusion of the corresponding extrusion inclined block 203. The two rings of extrusion inclined blocks 203 on each mounting cylinder 2011 can be rotated to release the extrusion positioning, which can not only ensure stable clamping of the end of the steel pipe and the steel pipe can stably fit the pipe end docking ring 202, but also does not affect the progress of the pressure test on the end of the steel pipe, which is more reasonable.;

[0034] Among them, the magnetic force safety component 4 includes: a safety plug shaft 401, a safety electromagnet 402, and a safety spring 403. The safety plug shafts 401 are slidably inserted into the two clamping threaded rings 301 respectively; the safety electromagnets 402 are fixedly installed on the two clamping threaded rings 301 respectively, and the safety plug shaft 401 passes through the safety electromagnet 402; the two safety plug shafts 401 are respectively used for being inserted into the slots on the two retaining rings 204; the safety electromagnet 402 is used for magnetically attracting the safety plug shaft 401; the safety spring 403 is sleeved on the safety plug shaft 401, and the safety spring 403 is located between the safety plug shaft 401 and the safety electromagnet 402; the front pressure switch 302 is electrically connected to the rear safety electromagnet 402, and the rear pressure switch 302 is electrically connected to the front safety electromagnet 402. By using the magnetic force safety component 4 in cooperation with the pressure switch 302, explosion-proof pipe safety protection can be carried out, which can prevent operators from improper operation and touching the two sets of extrusion inclined plane blocks 203 on the two butt pipes 201 simultaneously during the steel pipe pressure resistance test, resulting in the direct pressure release and detachment of the steel pipe and the hidden danger of pipe explosion. The structure of this is simple to control, avoiding the situation that both clamping threaded rings 301 on the same side are rotated and contacted with the extrusion inclined plane blocks 203 set by extrusion due to factors such as forgetting during manual operation. This structure can use the magnetic force safety component 4 to limit the clamping threaded ring 301 at the same time, ensuring the anti-loosening effect of the clamping threaded ring 301 after being tightened, and the structure is more reasonable. By electrically connecting the front pressure switch 302 to the rear safety electromagnet 402 and the rear pressure switch 302 to the front safety electromagnet 402, if the front clamping threaded ring 301 needs to be rotated to release the extrusion inclined plane block 203 set by extrusion, it is necessary to ensure that the rear clamping threaded ring 301 is tightened to clamp the extrusion inclined plane block 203, ensuring that the front safety electromagnet 402 can be in a power-off state. Once the rear clamping threaded ring 301 is not tightened to the extrusion inclined plane block 203, at this time, the rear retaining ring 204 cannot press the extrusion shaft 303 set, and the pressure switch 302 can control the front safety electromagnet 402 to magnetically attract the safety plug shaft 401, ensuring that the safety plug shaft 401 can be in a position that fits the slot on the retaining ring 204 for anti-loosening limit. In this way, it is ensured that at least one set of extrusion inclined plane blocks 203 among the two sets of extrusion inclined plane blocks 203 can clamp the steel pipe.

[0035] Among them, the movable pressure measuring member 5 includes: a pressure measuring steel wire 501 and a socket bolt 502. The pressure measuring steel wire 501 passes through two mounting cylinders 2011; the socket bolt 502 is threadedly connected to the docking pipe 201 on the side close to the water inlet pipe 102; a through hole is provided in the middle of the socket bolt 502, and a rubber ring is provided in the through hole of the socket bolt 502; the pressure measuring steel wire 501 is slidably sleeved in the rubber ring on the socket bolt 502; the movable pressure measuring member 5 further includes: a pressure measuring rubber ball 503 and an end bolt 504. The end of the pressure measuring steel wire 501 is fixedly installed with the pressure measuring rubber ball 503; the end bolt 504 is threadedly connected to the docking pipe 201 on the side close to the drain pipe 104; the end bolt 504 is used to limit the pressure measuring rubber ball 503. The use of the movable pressure measuring member 5 can facilitate the staff to test the expansion deformation conditions of different positions of the steel pipe, and can detect more intuitively through the way of water leakage, which can improve the comprehensiveness of the deformation detection of different positions of the steel pipe. This structure can realize the pulling and adjusting of the position through the movable pressure measuring member 5, and the control is simple and convenient. At the same time, it can also facilitate the scraping of the moisture on the inner surface of the steel pipe to avoid the residual moisture accelerating oxidation and rusting. Gradually pull the pressure measuring steel wire 501. At this time, as the pressure measuring rubber ball 503 moves, the pressure measuring rubber ball 503 can slide inside the steel pipe, playing a role in scraping the moisture. At the same time, if the expansion deformation degree of the steel pipe is too large, at this time the pressure measuring rubber ball 503 cannot seal the steel pipe, and the steel pipe will leak water, which is convenient for the staff to discover.

[0036] Embodiment 2, on the basis of Embodiment 1, the bubble interference eliminator 6 includes: an exhaust pipe 601, a conductive sheet 602, and an indicator light 603. The exhaust pipe 601 is fixedly installed on the left docking pipe 201; two conductive sheets 602 are fixedly installed inside the exhaust pipe 601, and there is a gap between the two conductive sheets 602; a valve is provided on the exhaust pipe 601; an indicator light 603 is fixedly installed on the exhaust pipe 601; the two conductive sheets 602 and the indicator light 603 are connected in series to a power source; the bubble interference eliminator 6 further includes: a magnet ring 604 and a rotating magnet ring 605. The magnet ring 604 is rotatably sleeved on the exhaust pipe 601; two magnets are provided inside the magnet ring 604; the rotating magnet ring 605 is rotatably sleeved inside the exhaust pipe 601; two magnets are provided on the outer side of the rotating magnet ring 605; the two magnets inside the magnet ring 604 magnetically attract the two magnets on the outer side of the rotating magnet ring 605; the bubble interference eliminator 6 further includes: a cleaning sponge 606. The cleaning sponge 606 is fixedly installed on the rotating magnet ring 605, and the side surface of the cleaning sponge 606 is used to fit and wipe the exhaust pipe 601 and the conductive sheet 602. Using the bubble interference eliminator 6 can facilitate the staff to detect the bubbles in the steel pipe water pressure test in time, can avoid the air bubbles from affecting the detection accuracy. At the same time, this structure can exhaust in time after detecting the bubbles, avoiding affecting the detection accuracy of the steel pipe deformation pressure due to the different densities of air and water. At the same time, it is also convenient to prompt in time when the air enters due to the pressure reduction in this structure. At the same time, this structure can clean the conductive sheet 602 by using the cleaning sponge 606 to avoid mis-touching. The cleaning sponge 606 used in this structure can rotate and test during the pressure test, which can ensure the sealing performance and the structure is more reasonable. When bubbles are generated inside the steel pipe, the liquid level drops. At this time, there is no moisture as a conductive medium between the two conductive sheets 602, and the indicator light 603 that is conducted by water between the two conductive sheets 602 will go out. At this time, the valve on the exhaust pipe 601 can be controlled to open for exhaust work. At the same time, the magnet ring 604 can be rotated regularly, and the rotating magnet ring 605 is driven to rotate by the magnet, so as to control the cleaning sponge 606 to wipe the exhaust pipe 601 and the conductive sheet 602, avoiding the mis-touch connection of the two conductive sheets 602 caused by impurities, moisture and other factors on the surfaces of the two conductive sheets 602, and ensuring the detection accuracy of the two conductive sheets 602.

[0037] Working principle of this embodiment: First, install the test connection plate 101 on the ground or the tabletop of the workbench through bolts. After inserting both ends of the steel pipe into the two installation cylinders 2011 respectively and fitting the pipe end docking ring 202, tighten the four clamping threaded rings 301 at this time, and then move and squeeze the set extrusion inclined plane block 203 to contract inward, so as to clamp the steel pipe. Once the steel pipe is clamped and fixed, then increase the water pressure through the pressure pump 103. After the water flow discharges from the drain pipe 104, tighten the valve on the drain pipe 104. At this time, pay attention to the pressure gauge provided on the water inlet pipe 102. When the pipe end needs to be subjected to a pressure resistance test later, rotate one of the two clamping threaded rings 301 on the same side respectively, and the extrusion of the corresponding extrusion inclined plane block 203 can be released. The two circles of extrusion inclined plane blocks 203 on each installation cylinder 2011 can rotate to release the extrusion positioning. When the extrusion inclined plane block 203 set by tightening the front clamping threaded ring 301 at this time, drive the front extrusion shaft 303 to move in a spiral displacement to squeeze the retaining ring 204 together. The tension spring 304 is stretched, and the front extrusion shaft 303 squeezes the front pressure switch 302. At this time, the front pressure switch 302 controls the rear insurance electromagnet 402 to cut off the power. At this time, under the extrusion of the insurance spring 403, the rear insurance plug shaft 401 will not be magnetically attracted by the insurance electromagnet 402 and inserted into the retaining ring 204, and the rear clamping threaded ring 301 can rotate freely. Similarly, if the front clamping threaded ring 301 needs to be rotated to release the extrusion inclined plane block 203 set by extrusion, it is necessary to ensure that the rear clamping threaded ring 301 is tightened to clamp and squeeze the extrusion inclined plane block 203 to ensure that the front insurance electromagnet 402 can be in a power-off state. Once the rear clamping threaded ring 301 does not tighten the extrusion inclined plane block 203, at this time, the rear retaining ring 204 cannot squeeze the set extrusion shaft 303, and the pressure switch 302 can control the front insurance electromagnet 402 to magnetically attract the insurance plug shaft 401 to ensure that the insurance plug shaft 401 can be in a position fitting the slot on the retaining ring 204 for anti-loosening limit. In this way, ensure that at least one circle of the two circles of extrusion inclined plane blocks 203 can clamp the steel pipe. When the staff installs the steel pipe for the first time and tightens the four clamping threaded rings 301, because the magnetic force of the insurance electromagnet 402 is limited, the insurance plug shaft 401 can be manually pulled outwards to prevent the insurance plug shaft 401 from being inserted into the retaining ring 204 and causing jamming, which affects the tightening of the clamping threaded ring 301; Before the test, the pressure measuring rubber ball 503 is first placed inside the steel pipe. During the water passing test, under the action of the water pressure, the pressure measuring rubber ball 503 is pushed to the end bolt 504 and will not cause blockage. At the same time, after the overall water pressure test is completed, disassemble the seamless steel pipe from the installation cylinder 2011 on the side close to the end bolt 504 and no longer sleeve and clamp the steel pipe. At this time, gradually pull the pressure measuring steel wire 501. As the pressure measuring rubber ball 503 moves, the pressure measuring rubber ball 503 can slide inside the steel pipe, playing a role in scraping off the water. At the same time, if the expansion and deformation degree of the steel pipe is too large, at this time, the pressure measuring rubber ball 503 cannot seal the steel pipe, and the steel pipe will leak water;When bubbles are generated inside the steel pipe, since the exhaust pipe 601 is taller, bubbles will appear at the top of the exhaust pipe 601 at this time. Because the liquid level drops, there is no moisture as a conductive medium between the two conductive sheets 602 at this time, and the indicator light 603 that is conducted by water between the two conductive sheets 602 will go out. At this time, the valve on the exhaust pipe 601 can be controlled to open for exhaust work. At the same time, the magnet ring 604 can be rotated regularly to control the cleaning sponge 606 to wipe the exhaust pipe 601 and the conductive sheet 602 to avoid impurities or moisture on the surfaces of the two conductive sheets 602.;

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluid pressure resistance testing device for seamless steel pipe processing, including a testing booster (1), and two pipe end positioning members (2) are installed on the testing booster (1), characterized in that: Clamping driving members (3) are respectively installed on the two pipe end positioning members (2); the two pipe end positioning members (2) are respectively used for switching the clamping positions of the ends of the seamless steel pipes; Magnetic force insurance members (4) are respectively installed on the four clamping driving members (3); the four magnetic force insurance members (4) are respectively used for inserting the two pipe end positioning members (2); the magnetic force insurance members (4) are used for explosion-proof pipes; A movable pressure measuring member (5) is installed on the two pipe end positioning members (2); the movable pressure measuring member (5) is used for testing the local pressure resistance performance of the seamless steel pipe; A bubble interference elimination member (6) is installed on the left pipe end positioning member (2); the bubble interference elimination member (6) is used for eliminating bubbles; The test pressure increasing member (1) includes: a test connection plate (101) and a water inlet pipe (102), and the water inlet pipe (102) is fixedly installed on the test connection plate (101); a pressure gauge is provided on the water inlet pipe (102); The test pressure increasing member (1) further includes: a pressure pump (103) and a drain pipe (104), the pressure pump (103) is fixedly installed on the test connection plate (101), and the pressure pump (103) is pipe-connected to the water inlet pipe (102); the drain pipe (104) is fixedly installed on the test connection plate (101); a valve is provided on the drain pipe (104); hoses are respectively provided at the ends of the water inlet pipe (102) and the drain pipe (104); The pipe end positioning member (2) includes: a butt joint pipe (201), a mounting cylinder (2011), a pipe end butt joint ring (202), a pressing inclined plane block (203) and a retaining ring (204). There are two butt joint pipes (201), and the two butt joint pipes (201) are respectively fixedly installed on the hoses at the ends of the water inlet pipe (102) and the drain pipe (104); mounting cylinders (2011) are respectively fixedly installed at the ends of the two butt joint pipes (201); threads are respectively provided on the outer sides of the two mounting cylinders (2011); pipe end butt joint rings (202) are respectively fixedly installed on the inner sides of the two mounting cylinders (2011), and the inner sides of the two pipe end butt joint rings (202) are respectively used for fitting the seamless steel pipes to be detected; two circles of pressing inclined plane blocks (203) are rotatably installed on the inner sides of the two mounting cylinders (2011), and the two circles of pressing inclined plane blocks (203) are used for pressing and clamping the seamless steel pipes; two retaining rings (204) are respectively fixedly sleeved on the two mounting cylinders (2011), and a circle of slots is respectively provided on the two retaining rings (204); The clamping driving member (3) includes: a clamping thread ring (301), a pressure switch (302), an extrusion shaft (303), and a tension spring (304). Two clamping thread rings (301) are threadedly connected to the mounting cylinder (2011), and the inner sides of the two clamping thread rings (301) are bevel structures. The two clamping thread rings (301) are respectively used to squeeze and fit the two rings of extrusion bevel blocks (203). Pressure switches (302) are respectively and fixedly installed on the two clamping thread rings (301), and extrusion shafts (303) are respectively and slidably inserted into the two clamping thread rings (301). The extrusion shafts (303) are located on the sides of the pressure switches (302). A tension spring (304) is sleeved on the extrusion shaft (303), and the tension spring (304) is connected between the clamping thread ring (301) and the extrusion shaft (303). The end parts of the two extrusion shafts (303) are respectively attached to the two retaining rings (204). The magnetic force insurance member (4) includes: an insurance insertion shaft (401), an insurance electromagnet (402), and an insurance spring (403). Insurance insertion shafts (401) are respectively and slidably inserted into the two clamping thread rings (301). Insurance electromagnets (402) are respectively and fixedly installed on the two clamping thread rings (301), and the insurance insertion shafts (401) pass through the insurance electromagnets (402). The two insurance insertion shafts (401) are respectively used to be inserted into the slots on the two retaining rings (204). The insurance electromagnet (402) is used to magnetically attract the insurance insertion shaft (401). An insurance spring (403) is sleeved on the insurance insertion shaft (401), and the insurance spring (403) is located between the insurance insertion shaft (401) and the insurance electromagnet (402). The front pressure switch (302) is electrically connected to the rear insurance electromagnet (402), and the rear pressure switch (302) is electrically connected to the front insurance electromagnet (402).

2. The fluid pressure resistance testing device for seamless steel pipe processing according to claim 1, wherein: The movable pressure measuring member (5) includes: a pressure measuring steel wire (501) and a socket bolt (502). The pressure measuring steel wire (501) passes through the two mounting cylinders (2011). The socket bolt (502) is threadedly connected to the docking pipe (201) on the side close to the water inlet pipe (102). A through hole is provided in the middle of the socket bolt (502), and a rubber ring is provided in the through hole of the socket bolt (502). The pressure measuring steel wire (501) is slidably sleeved in the rubber ring on the socket bolt (502).

3. A fluid pressure resistance testing device for seamless steel pipe processing according to claim 2, characterized in that: The movable pressure measuring member (5) further includes: a pressure measuring rubber ball (503) and an end bolt (504). The pressure measuring rubber ball (503) is fixedly installed at the end of the pressure measuring steel wire (501). The end bolt (504) is threadedly connected to the docking pipe (201) on the side close to the drain pipe (104). The end bolt (504) is used to limit the pressure measuring rubber ball (503).

4. A fluid pressure resistance testing device for seamless steel pipe processing according to claim 1, characterized in that: The bubble interference eliminator (6) includes: an exhaust pipe (601), a conductive sheet (602), and an indicator light (603). The exhaust pipe (601) is fixedly installed on the left docking pipe (201); two conductive sheets (602) are fixedly installed inside the exhaust pipe (601), and there is a gap between the two conductive sheets (602); a valve is provided on the exhaust pipe (601); an indicator light (603) is fixedly installed on the exhaust pipe (601); the two conductive sheets (602) and the indicator light (603) are connected in series to a power source.

5. A fluid pressure resistance testing device for seamless steel pipe processing according to claim 4, characterized in that: The bubble interference eliminator (6) further includes: a magnet ring (604) and a rotating magnet ring (605). The magnet ring (604) is rotatably sleeved on the exhaust pipe (601); two magnets are provided inside the magnet ring (604); the rotating magnet ring (605) is rotatably sleeved inside the exhaust pipe (601); two magnets are provided on the outer side of the rotating magnet ring (605); the two magnets inside the magnet ring (604) magnetically attract the two magnets on the outer side of the rotating magnet ring (605).

6. The fluid pressure resistance test device for seamless steel pipe processing according to claim 5, characterized in that: The bubble interference eliminator (6) further includes: a cleaning sponge (606). The cleaning sponge (606) is fixedly installed on the rotating magnet ring (605), and the side surface of the cleaning sponge (606) is used for fitting and wiping the exhaust pipe (601) and the conductive sheet (602).

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