Fluid pressure resistance testing device for seamless steel pipe processing

Abstract

The invention discloses a fluid pressure resistance testing device for seamless steel pipe machining, and relates to the technical field of steel pipe pressure resistance testing. Comprising a test pressurization piece, two pipe end positioning pieces are installed on the test pressurization piece, and clamping driving pieces are installed on the two pipe end positioning pieces respectively; the two pipe end positioning pieces are respectively used for switching the clamping positions of the end parts of the seamless steel pipe; the four clamping driving pieces are each provided with a magnetic safety piece. The four magnetic safety pieces are used for being connected with the two pipe end positioning pieces in an inserted mode respectively. Movable pressure measuring pieces are mounted on the two pipe end positioning pieces; the structure can be used for quickly clamping the end of the steel pipe for positioning, stability during pressure test can be ensured, the structure is stable in positioning, and comprehensiveness of pressure resistance test of the end of the steel pipe is improved; the fluid pressure resistance testing device aims to solve the problems that an existing fluid pressure resistance testing device for seamless steel pipe machining is usually provided with a quick-release connector, the connector can surround and extrude the end of a pipe fitting, and it is inconvenient for an anti-explosion pipe to switch the clamping position of the steel pipe.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe pressure resistance testing, in particular to a fluid pressure resistance testing device for seamless steel pipe processing. Background Art

[0002] Water pressure test is a common method for pressure test of seamless steel pipe. When conducting water pressure test, firstly, both ends of steel pipe need to be closed and water is injected into the inside through booster pump. During the test, the water pressure 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 whether there is leakage, deformation or rupture. This method is widely used in various stages such as steel pipe production, installation and use. It is an important means to ensure the quality and safety of steel pipe. At present, the fluid pressure test device for seamless steel pipe processing is usually equipped with quick-release joints. During the actual pressure test, the joint will surround and squeeze the end of the pipe fitting, which is not convenient for the explosion-proof pipe to switch the steel pipe clamping position. The end of the steel pipe is the main position of the steel pipe connection. If the pressure test data of the end of the steel pipe is not accurate enough, it is easy to cause omissions in the test. At the same time, it is not convenient for the staff to test the deformation degree and pressure resistance effect of different positions of the steel pipe. At the same time, bubbles are easy to exist in the steel pipe, which affects the accuracy of the water pressure test and is not convenient for detection and defoaming.

[0003] To this end, we propose a fluid pressure test device for seamless steel pipe processing. Summary of the invention

[0004] The purpose of the present invention is to provide a fluid pressure test device for seamless steel pipe processing, so as to solve the problem raised in the above background technology that the current fluid pressure test device for seamless steel pipe processing is usually provided with a quick-release joint, which will surround and squeeze the end of the pipe, making it inconvenient for the explosion-proof pipe to switch the steel pipe clamping position.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fluid pressure test device for seamless steel pipe processing, comprising a test booster, on which two pipe end positioning members are installed, and the two pipe end positioning members are respectively installed with clamping driving members; the two pipe end positioning members are respectively used to switch the clamping position of the end of the seamless steel pipe; the four clamping driving members are respectively installed with magnetic safety members; the four magnetic safety members are respectively used to plug in the two pipe end positioning members; the magnetic safety members are used for explosion-proof pipes; movable pressure measuring members are installed on the two pipe end positioning members; the movable pressure measuring member is used to test the local pressure resistance performance of the seamless steel pipe; a bubble interference exclusion member is installed on the left pipe end positioning member; the bubble interference exclusion member is used to exclude bubbles; the test booster comprises: a test connecting plate and a water inlet pipe, on which the water inlet pipe is fixedly installed; a pressure gauge is provided on the water inlet pipe.

[0006] Preferably, the movable pressure measuring part also includes: a pressure measuring rubber ball and an end bolt, the pressure measuring rubber ball is fixedly installed on the end of the pressure measuring steel wire; the end bolt is threadedly connected to the butt pipe close to one side of the drain pipe; the end bolt is used to limit the pressure measuring rubber ball.

[0007] Preferably, the bubble interference removal component also includes: a magnet ring and a rotating magnet ring, the magnet ring is rotatably sleeved on the exhaust pipe; two magnets are provided on the inner side of the magnet ring; the rotating magnet ring is rotatably sleeved inside the exhaust pipe; two magnets are provided on the outer side of the rotating magnet ring; the two magnets on the inner side of the magnet ring magnetically attract the two magnets on the outer side of the rotating magnet ring.

[0008] Preferably, the test booster also includes: a pressure pump and a drain pipe. The test connecting plate is fixedly mounted with a pressure pump, and the pressure pump pipe is connected to the water inlet pipe; the test connecting plate is fixedly mounted with a drain pipe; a valve is provided on the drain pipe; and hoses are provided at the ends of the water inlet pipe and the drain pipe, respectively.

[0009] Preferably, the bubble interference elimination component includes: an exhaust pipe, a conductive sheet and an indicator light, the exhaust pipe is fixedly mounted on the left docking pipe; two conductive sheets are fixedly mounted inside the exhaust pipe, and a space is provided between the two conductive sheets; a valve is provided on the exhaust pipe; an indicator light is fixedly mounted on the exhaust pipe; and a power supply is connected in series to the two conductive sheets and the indicator light.

[0010] Preferably, the clamping drive component includes: a clamping thread ring, a pressure switch, an extrusion shaft and a tension spring, two clamping thread rings are threadedly connected to the mounting tube, and the inner sides of the two clamping thread rings are inclined structures; the two clamping thread rings are respectively used to extrude and fit two circles of extrusion inclined surface blocks; the two clamping thread rings are respectively fixedly installed with a pressure switch, and the two clamping thread rings are respectively slidably inserted with an extrusion shaft, and the extrusion shaft is located on the front side of the pressure switch; 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 two ends of the extrusion shafts are respectively attached to two retaining rings.

[0011] Preferably, the pipe end positioning member comprises: a butt tube, a mounting tube, a pipe end butt ring, an extrusion bevel block and a retaining ring, wherein two butt tubes are provided, and the two butt tubes are respectively fixedly installed on the hoses at the ends of the water inlet pipe and the drain pipe; the two ends of the butt tubes are respectively fixedly installed with mounting tubes; the outer sides of the two mounting tubes are respectively provided with threads; the inner sides of the two mounting tubes are respectively fixedly installed with pipe end butt rings, and the inner sides of the two pipe end butt rings are respectively used to fit the seamless steel pipe to be tested; two circles of extrusion bevel blocks are rotatably installed on the inner sides of the two mounting tubes, and the two circles of extrusion bevel blocks are used to extrude and clamp the seamless steel pipe; two retaining rings are respectively fixedly sleeved on the two mounting tubes, and the two retaining rings are respectively provided with a circle of slots.

[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 This is a schematic diagram of the overall structure of a fluid pressure test device for seamless steel pipe processing according to the present invention;

[0020] Figure 2 This is a schematic diagram of the bottom structure of a fluid pressure test device for seamless steel pipe processing according to the present invention;

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

[0022] Figure 4 This is a schematic diagram of the structure of the pipe end positioning member of the present invention;

[0023] Figure 5 For the present invention Figure 3 A magnified view of the structure of the middle C region;

[0024] Figure 6 This is a schematic diagram of the installation position of the extrusion ramp block of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the movable pressure measuring member of the present invention;

[0026] Figure 8 For the present invention Figure 6 A magnified view of the structure of the middle E region;

[0027] Fig. 9 For the present invention Figure 6 A magnified view of the structure of the middle F region;

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

[0029] In the figure: 1. Test booster; 101. Test connecting plate; 102. Water inlet pipe; 103. Pressure pump; 104. Drain pipe; 2. Pipe end positioning piece; 201. Butt pipe; 2011. Mounting tube; 202. Pipe end butt ring; 203. Extrusion ramp block; 204. Retaining ring; 3. Clamping drive; 301. Clamping thread ring; 302. Pressure switch; 303. Extrusion shaft; 304. Tension spring; 4. Magnetic safety piece; 401. Safety plug shaft; 402. Safety electromagnet; 403. Safety spring; 5. Movable pressure measuring piece; 501. Pressure measuring wire; 502. Socket bolt; 503. Pressure measuring rubber ball; 504. End bolt; 6. Bubble interference elimination piece; 601. Exhaust pipe; 602. Conductive sheet; 603. Indicator light; 604. Magnet ring; 605. Rotating magnet ring; 606. Cleaning sponge. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1 to 10 As shown:

[0032] The present invention provides a technical solution: a fluid pressure test device for seamless steel pipe processing, comprising a test booster 1, on which two pipe end positioning members 2 are installed, 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 position of the end 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 plug the two pipe end positioning members 2; the magnetic safety member 4 is used for explosion-proof pipes; movable pressure measuring members 5 are 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 exclusion member 6 is installed on the left pipe end positioning member 2; the bubble interference exclusion member 6 is used to exclude bubbles; the test booster 1 comprises: a test connecting plate 101 and a water inlet pipe 102, and 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 also 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 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; the ends of the water inlet pipe 102 and the drain pipe 104 are respectively provided with hoses; the pipe end positioning member 2 includes: a butt pipe 201, a mounting cylinder 2011, a pipe end butt ring 202, an extrusion bevel block 203 and a retaining ring 204, two butt pipes 201 are provided, and the two butt pipes 201 are respectively fixedly installed on the hoses at the ends of the water inlet pipe 102 and the drain pipe 104; the ends of the two butt pipes 201 are respectively fixedly installed with mounting cylinders 2011; the outer sides of the two mounting cylinders 2011 are respectively provided with threads; the inner sides of the two mounting cylinders 2011 are respectively fixedly installed with pipe end butt rings 202, and the inner sides of the two pipe end butt rings 202 are respectively used to fit the seamless steel pipe to be tested; the two mounting cylinders 2011 are respectively fixedly installed with pipe end butt rings 202, and the inner sides of the two pipe end butt rings 202 are respectively used to fit the seamless steel pipe to be tested; the two mounting cylinders 2011 are respectively fixedly installed with pipe end butt rings 202. Two circles of extrusion bevel blocks 203 are rotatably installed inside the mounting cylinder 2011, and the two circles of extrusion bevel blocks 203 are used to extrude and clamp the seamless steel pipe; two retaining rings 204 are fixedly sleeved on the two mounting cylinders 2011, and the two retaining rings 204 are respectively provided with a circle of slots; the clamping drive member 3 includes: a clamping thread ring 301, a pressure switch 302, an extrusion shaft 303 and a tension spring 304, and the mounting cylinder 2011 is threadedly connected with two clamping thread rings 301, and the two clamping The inner side of the holding thread ring 301 is a slope structure; the two clamping thread rings 301 are respectively used to squeeze and fit two circles of extrusion slope blocks 203; the two clamping thread rings 301 are respectively fixedly installed with pressure switches 302, and the two clamping thread rings 301 are respectively slidably plugged with extrusion shafts 303, and the extrusion shafts 303 are located in front of the pressure switches 302; the extrusion shafts 303 are sleeved with tension springs 304, and the tension springs 304 are connected between the clamping thread rings 301 and the extrusion shafts 303;The ends of the two extrusion shafts 303 are respectively attached to the two retaining rings 204. The pipe end positioning member 2 is used in conjunction with the clamping drive member 3 to quickly clamp the steel pipe end for positioning, which can ensure stability during pressure testing. The present structure has stable positioning, and at the same time, two circles of extrusion ramp blocks 203 can be used to clamp the steel pipe end, 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, and the problem that the pressure resistance performance of the steel pipe end is naturally enhanced after the traditional joint clamps the steel pipe end, resulting in the inability to test the pressure resistance strength of the steel pipe end is avoided. In particular, for the steel pipe end, subsequent connection work is required, and the pressure resistance performance of the steel pipe end is extremely important. The present structure uses the clamping drive member 3 to perform connection work at two places on the steel pipe end. The clamping position can be quickly rotated to ensure comprehensive inspection. Deformation and cracks at the end of the steel pipe after being compressed can be timely known. The structure is more reasonable. Tightening the four clamping thread rings 301 can move the extrusion bevel block 203 set for extrusion, and shrink it inward to clamp the steel pipe. The steel pipe can be clamped and fixed. When the pipe end needs to be subjected to pressure test later, one of the two clamping thread rings 301 on the same side can be rotated to release the extrusion of the corresponding extrusion bevel block 203. The two circles of extrusion bevel blocks 203 on each installation cylinder 2011 can be rotated to release the extrusion positioning, which can ensure the stable clamping of the steel pipe end, and the steel pipe can stably fit the pipe end docking ring 202, without affecting the pressure test of the steel pipe end, which is more reasonable. ;

[0034] Among them, the magnetic safety part 4 includes: a safety plug shaft 401, a safety electromagnet 402 and a safety spring 403. The two clamping threaded rings 301 are respectively slidably plugged with the safety plug shaft 401; the two clamping threaded rings 301 are respectively fixedly installed with the safety electromagnet 402, and the safety plug shaft 401 passes through the safety electromagnet 402; the two safety plug shafts 401 are respectively used to be plugged into the slots on the two retaining rings 204; the safety electromagnet 402 is used to magnetically attract the safety plug shaft 401; the safety plug shaft 401 is sleeved with a safety spring 403, and the safety spring 403 is located The front side pressure switch 302 is electrically connected to the rear side insurance electromagnet 402, and the rear side pressure switch 302 is electrically connected to the front side insurance electromagnet 402. The magnetic insurance piece 4 is used in conjunction with the pressure switch 302 to provide safety protection for the explosion-proof pipe, which can prevent the staff from operating improperly and contacting the two circles of extrusion ramp blocks 203 on the two butt-joint pipes 201 at the same time during the steel pipe pressure test, causing the steel pipe to release pressure directly and detach, resulting in the hidden danger of pipe explosion. The structure is simple to control and avoids the hidden danger of forgetfulness during manual operation. The two clamping thread rings 301 on the same side are caused to rotate and contact the extrusion inclined plane block 203 set for extrusion. The structure can limit the clamping thread ring 301 by using the magnetic safety element 4 at the same time, ensuring the anti-slip effect of the clamping thread ring 301 after tightening. The structure is more reasonable. The front side pressure switch 302 is electrically connected to the rear side safety electromagnet 402, and the rear side pressure switch 302 is electrically connected to the front side safety electromagnet 402. If the clamping thread ring 301 on the front side needs to be rotated to release the extrusion inclined plane block 203 set for extrusion, it is necessary to ensure that the clamping thread ring 301 on the rear side is rotated. Tightly clamp the extrusion bevel block 203 to ensure that the safety electromagnet 402 on the front side can be in a power-off state. Once the clamping thread ring 301 on the rear side is not tightened to the extrusion bevel block 203, the retaining ring 204 on the rear side cannot squeeze the set extrusion shaft 303. The pressure switch 302 can control the safety electromagnet 402 on the front side to magnetically attract the safety plug-in shaft 401, ensuring that the safety plug-in shaft 401 can be in a position that fits the slot on the retaining ring 204 to prevent loosening and limit it. In this way, it is ensured that at least one of the two circles of extrusion bevel blocks 203 can clamp the steel pipe.

[0035] Among them, the movable pressure measuring member 5 includes: a pressure measuring wire 501 and a sleeve bolt 502, the pressure measuring wire 501 passes through two installation tubes 2011; the sleeve bolt 502 is threadedly connected to the butt joint pipe 201 near the side of the water inlet pipe 102; a through hole is provided in the middle of the sleeve bolt 502, and a rubber ring is provided in the through hole on the sleeve bolt 502; the pressure measuring wire 501 is slidably sleeved in the rubber ring on the sleeve bolt 502; the movable pressure measuring member 5 also 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 wire 501; the end bolt 504 is threadedly connected to the butt joint pipe 201 near the side of the drain pipe 104; the end bolt 504 is used to limit the pressure measuring rubber ball 5 03. The use of a movable pressure measuring piece 5 can facilitate the staff to test the expansion deformation of different positions of the steel pipe, and can be detected more intuitively by means of water leakage, which can improve the comprehensiveness of deformation detection at different positions of the steel pipe. The movable pressure measuring piece 5 can be pulled out to adjust the position, and the control is simple and convenient. It can also facilitate the scraping of moisture on the inner surface of the steel pipe to avoid residual moisture from accelerating oxidation and rusting. The pressure measuring steel wire 501 is gradually pulled. At this time, as the pressure measuring rubber ball 503 moves, the pressure measuring rubber ball 503 can slide on the inside of the steel pipe to scrape off moisture. At the same time, if the expansion deformation of the steel pipe is too large, the pressure measuring rubber ball 503 cannot seal the steel pipe, and the steel pipe will leak, which is easy for the staff to find.

[0036] Embodiment 2, on the basis of embodiment 1, the bubble interference eliminating member 6 comprises: an exhaust pipe 601, a conductive sheet 602 and an indicator light 603, the exhaust pipe 601 is fixedly mounted on the left butt joint pipe 201; two conductive sheets 602 are fixedly mounted inside the exhaust pipe 601, and a gap is provided between the two conductive sheets 602; a valve is provided on the exhaust pipe 601; an indicator light 603 is fixedly mounted on the exhaust pipe 601; the two conductive sheets 602 and the indicator light 603 are connected in series with a power supply; the bubble interference eliminating member 6 also comprises: a magnet ring 604 and a rotating magnet ring 605, the magnet ring 604 rotates The movable sleeve is connected to the exhaust pipe 601; two magnets are arranged on the inner side of the magnet ring 604; the rotating magnet ring 605 is rotatably sleeved inside the exhaust pipe 601; two magnets are arranged on the outer side of the rotating magnet ring 605; the two magnets on the inner side of the magnet ring 604 magnetically attract the two magnets on the outer side of the rotating magnet ring 605; the bubble interference exclusion member 6 also includes: a cleaning sponge 606, a cleaning sponge 606 is fixedly mounted on the rotating magnet ring 605, and the side of the cleaning sponge 606 is used to fit and wipe the exhaust pipe 601 and the conductive sheet 602. The use of the bubble interference exclusion member 6 can facilitate the staff to detect in time The bubbles during the water pressure test of the steel pipe can be avoided, and the air bubbles can be prevented from affecting the detection accuracy. At the same time, the structure can detect and exhaust in time when bubbles appear, so as to avoid affecting the deformation pressure detection accuracy of the steel pipe due to the difference between air density and water density. At the same time, it is also convenient to prompt in time when the pressure decreases in the structure and air enters. At the same time, the structure can use the cleaning sponge 606 to clean the conductive sheet 602 to avoid accidental touch. The cleaning sponge 606 used in the structure can be rotated during the pressure test to ensure the sealing performance. The structure is more reasonable. When bubbles are generated inside the steel pipe , the liquid level drops. At this time, there is no water as a conductive medium between the two conductive sheets 602. The indicator light 603 between the two conductive sheets 602 will go out because of the water conduction. 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 magnet can be used to drive the rotating magnet ring 605 to rotate, thereby controlling the cleaning sponge 606 to wipe the exhaust pipe 601 and the conductive sheet 602, so as to avoid the two conductive sheets 602 from accidentally touching and connecting due to impurities and moisture on the surface of the two conductive sheets 602, thereby ensuring the detection accuracy of the two conductive sheets 602.

[0037] The working principle of this embodiment is as follows: first, install the test connecting plate 101 on the ground or workbench desktop by bolts, insert the two ends of the steel pipe into the two mounting cylinders 2011 respectively, fit the pipe end docking ring 202, and tighten the four clamping thread rings 301 at this time, so that the extrusion inclined surface block 203 set for extrusion can be moved and contracted inward to clamp the steel pipe. The steel pipe is clamped and fixed, and then the water is pressurized by the pressure pump 103. After the water is discharged from the drain pipe 104, tighten the valve on the drain pipe 104. At this time, you can pay attention to the pressure gauge on the water inlet pipe 102. When the pipe end needs to be subjected to a pressure test later, rotate one of the two clamping thread rings 301 on the same side to release the extrusion of the corresponding extrusion inclined surface block 203. Each mounting cylinder 2 The two circles of extrusion bevel blocks 203 on 011 can be rotated to release the extrusion positioning. When the front side clamping thread ring 301 tightens the extrusion bevel block 203 set for extrusion, the front side extrusion shaft 303 is driven to spirally displace and extrude the retaining ring 204. The tension spring 304 is stretched, and the front side extrusion shaft 303 squeezes the front side pressure switch 302. At this time, the front side pressure switch 302 controls the safety electromagnet 402 on the rear side to cut off the power. At this time, under the extrusion of the safety spring 403, the rear side safety plug-in shaft 401 will not be magnetically attracted by the safety electromagnet 402 to insert into the retaining ring 204, and the rear side clamping thread ring 301 can rotate freely. Similarly, if the front side clamping thread ring 301 needs to rotate to release the extrusion bevel block 203 set for extrusion, it is necessary to ensure the clamping of the rear side. The threaded ring 301 is tightened to clamp the extrusion bevel block 203 to ensure that the safety electromagnet 402 on the front side can be in a power-off state. Once the clamping threaded ring 301 on the rear side is not tightened to squeeze the extrusion bevel block 203, the retaining ring 204 on the rear side cannot squeeze the set extrusion shaft 303. The pressure switch 302 can control the safety electromagnet 402 on the front side to magnetically attract the safety plug-in shaft 401 to ensure that the safety plug-in shaft 401 can be in a position that fits the slot on the retaining ring 204 to prevent loosening. In this way, it is ensured that at least one of the two circles of extrusion bevel blocks 203 can clamp the steel pipe. When the staff first installs the steel pipe, when tightening the four clamping threaded rings 301, because the magnetic force of the safety electromagnet 402 is limited, the safety electromagnet 402 can be manually pulled outward. The safety plug shaft 401 is prevented from being inserted into the retaining ring 204 and causing jamming, which affects the tightening and clamping of the threaded ring 301; before the test, the pressure measuring rubber ball 503 is first placed inside the steel pipe. During the water flow test, under the action of water pressure, the pressure measuring rubber ball 503 is pushed to the end bolt 504 without causing blockage. At the same time, after the overall water pressure test is completed, the seamless steel pipe is disassembled from the mounting tube 2011 on the side close to the end bolt 504, and the steel pipe is no longer sleeved and clamped. At this time, the pressure measuring steel wire 501 is gradually pulled. As the pressure measuring rubber ball 503 moves, the pressure measuring rubber ball 503 can slide on the inside of the steel pipe to scrape off moisture. At the same time, if the steel pipe expands and deforms too much, the pressure measuring rubber ball 503 cannot seal the steel pipe, and the steel pipe will leak.When bubbles are generated inside the steel pipe, because the exhaust pipe 601 is at a higher height, bubbles will appear on the top of the exhaust pipe 601. Because the liquid level drops, there is no water between the two conductive sheets 602 as a conductive medium. The indicator light 603 between the two conductive sheets 602 will go out because of water conduction. 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 surface of the two conductive sheets 602. ;

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

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluid pressure test device for seamless steel pipe processing, comprising a test pressure booster (1), on which two pipe end positioning members (2) are installed, characterized in that: A clamping driving member (3) is respectively installed on the two pipe end positioning members (2); the two pipe end positioning members (2) are respectively used to switch the clamping position of the end of the seamless steel pipe; The four clamping drive members (3) are respectively provided with magnetic safety members (4); the four magnetic safety members (4) are respectively used for plugging two pipe end positioning members (2); the magnetic safety members (4) are used for explosion-proof pipes; A movable pressure measuring piece (5) is installed on the two pipe end positioning pieces (2); the movable pressure measuring piece (5) is used to test the local pressure resistance performance of the seamless steel pipe; A bubble interference removal member (6) is installed on the left side of the tube end positioning member (2); the bubble interference removal member (6) is used to remove bubbles; The test pressurizing component (1) comprises: a test connecting plate (101) and a water inlet pipe (102); the water inlet pipe (102) is fixedly mounted on the test connecting plate (101); and a pressure gauge is provided on the water inlet pipe (102).

2. A fluid pressure test device for seamless steel pipe processing according to claim 1, characterized in that: The test pressurizing component (1) further comprises: a pressure pump (103) and a drainage pipe (104); the pressure pump (103) is fixedly mounted on the test connection plate (101), and the pressure pump (103) is connected to the water inlet pipe (102); the drainage pipe (104) is fixedly mounted on the test connection plate (101); a valve is provided on the drainage pipe (104); and hoses are provided at the ends of the water inlet pipe (102) and the drainage pipe (104), respectively.

3. A fluid pressure test device for seamless steel pipe processing according to claim 2, characterized in that: The pipe end positioning member (2) comprises: a butt-joint pipe (201), a mounting tube (2011), a pipe end butt-joint ring (202), an extrusion slope block (203) and a retaining ring (204); two butt-joint pipes (201) are provided, 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); the ends of the two butt-joint pipes (2011) are respectively fixedly installed with mounting tubes (2011); the outer sides of the two mounting tubes (2011) are respectively provided with threaded ; The inner sides of the two installation cylinders (2011) are respectively fixedly installed with pipe end docking rings (202), and the inner sides of the two pipe end docking rings (202) are respectively used to fit the seamless steel pipe to be tested; two circles of extrusion bevel blocks (203) are rotatably installed on the inner sides of the two installation cylinders (2011), and the two circles of extrusion bevel blocks (203) are used to extrude and clamp the seamless steel pipe; two retaining rings (204) are respectively fixedly sleeved on the two installation cylinders (2011), and the two retaining rings (204) are respectively provided with a circle of slots.

4. A fluid pressure test device for seamless steel pipe processing according to claim 3, characterized in that: The clamping drive member (3) comprises: a clamping thread ring (301), a pressure switch (302), an extrusion shaft (303) and a tension spring (304); the mounting cylinder (2011) is threadedly connected with two clamping thread rings (301), and the inner sides of the two clamping thread rings (301) are inclined surface structures; the two clamping thread rings (301) are respectively used to extrude and fit two circles of extrusion inclined surface blocks (203); the two clamping thread rings (301) are A pressure switch (302) is fixedly installed respectively, and an extrusion shaft (303) is slidably inserted on the two clamping thread rings (301), and the extrusion shaft (303) is located on the side of the pressure switch (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 ends of the two extrusion shafts (303) are respectively attached to two retaining rings (204).

5. A fluid pressure test device for seamless steel pipe processing according to claim 4, characterized in that: The magnetic safety element (4) comprises: a safety plug shaft (401), a safety electromagnet (402) and a safety spring (403); the two clamping threaded rings (301) are respectively slidably plugged with the safety plug shaft (401); the two clamping threaded rings (301) are respectively fixedly mounted with the safety electromagnet (402), and the safety plug shaft (401) passes through the safety electromagnet (402); the two safety plug shafts (401) are respectively used to be plugged into the two blocking The safety electromagnet (402) is used for magnetically attracting the safety plug shaft (401); a 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).

6. The fluid pressure test device for seamless steel pipe processing according to claim 3, characterized in that: The movable pressure measuring member (5) comprises: a pressure measuring wire (501) and a sleeve bolt (502), wherein the pressure measuring wire (501) passes through two mounting tubes (2011); the sleeve bolt (502) is threadedly connected to a butt joint pipe (201) on a side close to the water inlet pipe (102); a through hole is provided in the middle of the sleeve bolt (502), and a rubber ring is provided in the through hole on the sleeve bolt (502); and the pressure measuring wire (501) is slidably sleeved in the rubber ring on the sleeve bolt (502).

7. A fluid pressure test device for seamless steel pipe processing according to claim 6, characterized in that: The movable pressure measuring member (5) further comprises: a pressure measuring rubber ball (503) and an end bolt (504); the pressure measuring rubber ball (503) is fixedly mounted on the end of the pressure measuring steel wire (501); the end bolt (504) is threadedly connected to a butt joint (201) on one side close to the drain pipe (104); the end bolt (504) is used to limit the position of the pressure measuring rubber ball (503).

8. The fluid pressure test device for seamless steel pipe processing according to claim 3, characterized in that: The bubble interference removing component (6) comprises: an exhaust pipe (601), a conductive sheet (602) and an indicator light (603); the exhaust pipe (601) is fixedly mounted on the left butt joint pipe (201); two conductive sheets (602) are fixedly mounted inside the exhaust pipe (601), and a spacer is provided between the two conductive sheets (602); a valve is provided on the exhaust pipe (601); an indicator light (603) is fixedly mounted on the exhaust pipe (601); and a power supply is connected in series to the two conductive sheets (602) and the indicator light (603).

9. A fluid pressure test device for seamless steel pipe processing according to claim 8, characterized in that: The bubble interference removal member (6) further comprises: a magnet ring (604) and a rotating magnet ring (605), wherein the magnet ring (604) is rotatably sleeved on the exhaust pipe (601); two magnets are arranged on the inner side of the magnet ring (604); the rotating magnet ring (605) is rotatably sleeved inside the exhaust pipe (601); two magnets are arranged on the outer side of the rotating magnet ring (605); the two magnets on the inner side of the magnet ring (604) magnetically attract the two magnets on the outer side of the rotating magnet ring (605).

10. A fluid pressure test device for seamless steel pipe processing according to claim 9, characterized in that: The bubble interference removing member (6) further comprises: a cleaning sponge (606), the cleaning sponge (606) being fixedly mounted on the rotating magnet ring (605), and the side surface of the cleaning sponge (606) being used for fitting and wiping the exhaust pipe (601) and the conductive sheet (602).

Images