CN217786776U

CN217786776U - Hydrostatic pressure test equipment for monitoring welding quality of weldment

Info

Publication number: CN217786776U
Application number: CN202221884069.1U
Authority: CN
Inventors: 贾文君; 贾建兵
Original assignee: Hubei Star Steel Pipe Industry Co ltd
Current assignee: Hubei Star Steel Pipe Industry Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-11
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a hydrostatic pressure test equipment for weldment welding quality monitoring, including test frame and the brace table of fixed mounting at the test frame inner wall, the activity of the inner wall top of test frame is provided with the elevating platform, and is provided with elevating system on the elevating platform, the intermediate position of brace table and the intermediate position of elevating platform have all seted up circular groove, and the inner wall of circular groove is fixed mounting respectively has lower pressure disk and upper pressure disk, the top intermediate position of lower pressure disk and the bottom intermediate position of upper pressure disk have all seted up the mounting groove, and the circumference inner wall of mounting groove has all laminated the supporting disk, and the opposite face of two supporting disks has all bonded the sealed cushion; the utility model discloses make the tip of pipe weldment closely laminate with sealed cushion to make gasbag circle inflation and cladding on the outer wall of pipe weldment, fully keep the end sealing performance of weldment in the whole hydrostatic pressure test equipment, avoid the water pressure increase to cause the weldment end problem of leaking to appear.

Description

Hydrostatic pressure test equipment for monitoring welding quality of weldment

Technical Field

The utility model relates to a weldment test technical field specifically is a hydrostatic pressure test equipment for weldment welding quality monitoring.

Background

The hydrostatic test is widely applied to hydrostatic inspection, small valves, pressure vessels and pressure resistance and explosion tests of various metal and nonmetal pipes in daily life; testing the hydraulic strength and the sealing performance of various petroleum tools; pressure detection and correction of a pressure instrument; pressure resistance and explosion tests of fire-fighting equipment such as fire hoses, fire extinguishers and the like. After the welding of some metal weldments is completed, in order to maintain the quality and the tightness, a hydrostatic pressure tester needs to be used for testing the metal weldments, mainly for measuring the waterproof or seepage-proofing performance of the weldments, and particularly for testing the metal weldments.

At present, when the hydrostatic pressure test is being carried out to current pipe weldment, how to seal the both ends of pipe weldment, the problem that has become people's main consideration, but current test equipment is when sealed because the increase of water pressure causes the problem that the end leaks easily, consequently, need to design a hydrostatic pressure test equipment for weldment welding quality monitoring and solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydrostatic pressure test equipment for weldment welding quality monitoring to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a hydrostatic pressure test device for monitoring welding quality of a weldment comprises a test rack and a supporting table fixedly mounted on the inner wall of the test rack, wherein a lifting table is movably arranged at the top of the inner wall of the test rack, a lifting mechanism is arranged on the lifting table, circular grooves are formed in the middle position of the supporting table and the middle position of the lifting table, a lower pressure plate and an upper pressure plate are fixedly mounted on the inner wall of each circular groove respectively, mounting grooves are formed in the middle position of the top of the lower pressure plate and the middle position of the bottom of the upper pressure plate respectively, supporting plates are attached to the inner circumferential wall of each mounting groove, sealing rubber pads are bonded to the opposite surfaces of the two supporting plates respectively, the opposite surfaces of the two sealing rubber pads are of a spherical structure, a buffer assembly is arranged between the two supporting plates and the lower pressure plate and the upper pressure plate, annular grooves are formed in the inner circumferential wall of the mounting grooves respectively, air bag rings are fixed to the inner walls of the annular grooves respectively, and air nozzles are fixed to one sides of the air bag rings respectively;

the bottom of one side of the test rack is fixedly provided with a water storage tank, and a hydrostatic pressure test assembly is arranged at the middle position of the water storage tank and the lower pressure plate.

Preferably, hydrostatic pressure test component includes the water pump of fixed mounting in water storage box one side bottom, and the one end fixed mounting of water pump has the drain pipe, and one side fixed mounting of drain pipe has the water pressure instrument, is located down the pressure disk sealed cushion with the mounting hole has all been opened to the supporting disk intermediate position, and the bottom intermediate position of pressure disk has seted up the perforation down, and the inner wall of mounting hole is fixed with and passes fenestrate water injection pipe, has the hose through flange joint between the bottom of water injection pipe and the one end of drain pipe.

Preferably, the buffering subassembly is including seting up the guide way at installation tank bottom both ends, and the bottom of supporting disk is fixed with the multilateral post that passes the guide way, and the tip of multilateral post all is fixed with spacing dish, all is fixed with the spring between spacing dish and lower pressure disk and the last pressure disk.

Preferably, the bottom of supporting disk all is fixed with the retainer plate, and the retainer plate laminating is on the circumference inner wall of mounting groove and gasbag circle.

Preferably, a protection ring is fixed at the middle position of the top of the support table and the middle position of the bottom of the lifting table, a return pipe inserted in the water storage tank is fixed at the bottom of one side of the protection ring at the bottom, and an electromagnetic valve is fixedly installed at the bottom of the return pipe.

Preferably, elevating system includes the threaded rod of connecting at a supporting bench top both ends through the bearing, and the screw hole with threaded rod looks adaptation is all seted up at the both ends of elevating platform, the top of threaded rod all is fixed with the connecting axle that runs through the test rack, and the outer wall of connecting axle all is fixed with the drive wheel, and the outer wall transmission of drive wheel is connected with the drive belt, the top one end fixed mounting of test rack has the positive reverse motor that is used for driving the connecting axle.

Preferably, guide grooves are formed in the two ends of the test rack, guide blocks inserted into the guide grooves are fixed at the two ends of the lifting platform, and universal wheels are fixedly mounted at the four corners of the bottoms of the test rack and the water storage tank.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, when carrying out hydrostatic test to the weldment, place it between lower pressure disk and upper pressure disk, utilize elevating system to drive elevating platform and upper pressure disk and move down, shorten the distance between lower pressure disk and the upper pressure disk, make the pipe weldment fix on whole equipment, water in the water storage box is continuously injected into the pipe weldment along the water injection pipe through the water pump in the hydrostatic test subassembly again, defeated pressure to whole pipe weldment, and control pressure value and boost speed through water pressure instrument and controlgear, realize that water pressure presses into the pipe weldment that is surveyed, thereby determine its waterproof performance, be convenient for carry out quality monitoring processing to the weldment welding department;

in the utility model, the extrusion sealing rubber mat and the supporting disk are moved into the mounting groove by the reverse acting force generated when the pipe welding piece is fixed, and the pipe welding piece gradually enters the mounting groove, at the moment, the end part of the pipe welding piece is tightly attached to the sealing rubber mat, and the inside of the air bag ring is inflated under the action of the air nozzle and the inflating equipment, so that the air bag ring is expanded and coated on the outer wall of the pipe welding piece, the end sealing performance of the welding piece in the whole hydrostatic pressure testing equipment is fully maintained, and the problem of leakage of the end of the welding piece caused by the increase of water pressure is avoided;

the utility model discloses in, after the test is accomplished, can pass through water injection pipe and water pump and back flow with the water that utilizes when hydrostatic pressure tests and flow back to the water storage box in, form cyclic utilization's effect.

Drawings

Fig. 1 is a schematic overall structure diagram of a hydrostatic pressure testing device for monitoring the welding quality of weldments.

FIG. 2 is a schematic structural diagram of a lifting platform and an upper pressure plate of the hydrostatic testing equipment for monitoring the welding quality of weldments.

Fig. 3 is a schematic diagram of a water pump and a hose structure of a hydrostatic testing device for monitoring the welding quality of a weldment.

Fig. 4 is a schematic structural diagram of a sealing rubber gasket of hydrostatic testing equipment for monitoring the welding quality of a weldment.

FIG. 5 is a cross-sectional view of a lower platen of a hydrostatic testing apparatus for weldment weld quality monitoring.

FIG. 6 is a schematic view of a mounting groove and an annular groove of a hydrostatic testing device for weldment weld quality monitoring.

In the figure: 1. a test rack; 2. a lower platen; 3. a support table; 4. a threaded rod; 5. a lifting platform; 6. a forward and reverse rotation motor; 7. a transmission belt; 8. an upper platen; 9. a guide groove; 10. a guard ring; 11. a water storage tank; 12. a water pressure meter; 13. a polygonal column; 14. a spring; 15. an air tap; 16. a water pump; 17. a drain pipe; 18. a hose; 19. sealing the rubber gasket; 20. a water injection pipe; 21. a support disc; 22. a stationary ring; 23. an air bag ring; 24. mounting grooves; 25. an annular groove; 26. a guide opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in the embodiment of the present invention, a hydrostatic pressure testing apparatus for monitoring welding quality of a weldment includes a testing frame 1 and a supporting table 3 fixedly mounted on an inner wall of the testing frame 1, a lifting table 5 is movably disposed on a top portion of the inner wall of the testing frame 1, a lifting mechanism is disposed on the lifting table 5, circular grooves are disposed at intermediate positions of the supporting table 3 and the lifting table 5, inner walls of the circular grooves are respectively and fixedly mounted with a lower platen 2 and an upper platen 8, mounting grooves 24 are disposed at intermediate positions of a top portion of the lower platen 2 and an intermediate position of a bottom portion of the upper platen 8, supporting discs 21 are respectively attached to circumferential inner walls of the mounting grooves 24, sealing rubber pads 19 are respectively bonded to opposite surfaces of the two supporting discs 21, opposite surfaces of the two sealing rubber pads 19 are respectively disposed in a spherical structure, a buffer component is arranged between the two supporting disks 21 and the lower pressure disk 2 and the upper pressure disk 8, annular grooves 25 are formed in the circumferential inner walls of the mounting grooves 24, air bag rings 23 are fixed to the inner walls of the annular grooves 25, air nozzles 15 are fixed to one sides of the air bag rings 23, the air nozzles 15 are in butt joint with the same inflation equipment, a reverse acting force generated when the welded parts are fixed enables the extrusion sealing rubber cushion 19 and the supporting disks 21 to move into the mounting grooves 24, the welded parts gradually enter the mounting grooves 24, the end portions of the welded parts are tightly attached to the sealing rubber cushion 19 at the moment, air blowing is performed on the inner portions of the air bag rings 23 under the action of the air nozzles 15 and the inflation equipment, the air bag rings 23 are expanded and coated on the outer walls of the welded parts, the end sealing performance of the welded parts in the whole hydrostatic pressure testing equipment is fully maintained, and the problem that the end of the welded parts are leaked due to the increase of water pressure is avoided;

the bottom of one side of the test rack 1 is fixedly provided with a water storage tank 11, and a hydrostatic pressure test component is arranged at the middle position of the water storage tank 11 and the lower pressure plate 2.

Further, the hydrostatic pressure test assembly comprises a water pump 16 fixedly installed at the bottom of one side of the water storage tank 11, a drain pipe 17 is fixedly installed at one end of the water pump 16, a hydraulic pressure meter 12 is fixedly installed at one side of the drain pipe 17, mounting holes are formed in the middle positions of a sealing rubber gasket 19 and a supporting plate 21 in the lower pressure plate 2, a through hole is formed in the middle position of the bottom of the lower pressure plate 2, a water injection pipe 20 penetrating through the through hole is fixed to the inner wall of the mounting hole, a hose 18 is connected between the bottom of the water injection pipe 20 and one end of the drain pipe 17 through a flange, the hydraulic pressure meter 12 and the water pump 16 are connected with control equipment, water in the water storage tank 11 is continuously injected into a pipe welding piece along the water injection pipe 20 through the water pump 16 in the hydrostatic pressure test assembly, the whole pipe welding piece is subjected to pressure transmission, the pressure value and the boosting rate are controlled through the hydraulic pressure meter 12 and the control equipment, the hydraulic pressure is realized to enter the pipe welding piece to be tested, the waterproof performance of the pipe welding piece is tested, and the quality monitoring treatment of the welding piece is facilitated.

Further, the buffering subassembly is including offering the guide opening 26 at mounting groove 24 bottom both ends, and the bottom of supporting disk 21 is fixed with the multilateral post 13 that passes guide opening 26, and the tip of multilateral post 13 all is fixed with spacing dish, all is fixed with spring 14 between spacing dish and lower pressure disk 2 and the last pressure disk 8, and the tensioning performance through spring 14 in the buffering subassembly makes sealed cushion 19 can closely laminate the end at the weldment, and sealed cushion 19 also can reset after recovering initial stage.

Furthermore, the bottom of the supporting disc 21 is fixed with a fixing ring 22, the fixing ring 22 is attached to the circumferential inner walls of the mounting groove 24 and the airbag ring 23, and the fixing ring 22 is used for shaping the uninflated airbag ring 23 on one hand, so that the supporting disc 21 is prevented from moving downwards after entering the mounting groove 24, and the stability of the supporting disc 21 during moving downwards can be maintained on the other hand.

Furthermore, a protection ring 10 is fixed at the top middle position of the support table 3 and the bottom middle position of the lifting table 5, a return pipe inserted in the water storage tank 11 is fixed at the bottom of one side of the protection ring 10 at the bottom, an electromagnetic valve is fixedly installed at the bottom of the return pipe, and after the test is finished, water utilized in the test can flow back into the water storage tank 11 through the return pipe to be recycled.

Further, elevating system includes threaded rod 4 of connecting at 3 top both ends of brace table through the bearing, and the both ends of elevating platform 5 all offer the screw hole with 4 looks adaptations of threaded rod, the top of threaded rod 4 all is fixed with the connecting axle that runs through test rack 1, and the outer wall of connecting axle all is fixed with the drive wheel, the outer wall transmission of drive wheel is connected with drive belt 7, the top one end fixed mounting of test rack 1 has positive and negative rotation motor 6 who is used for driving the connecting axle, it rotates to utilize positive and negative rotation motor 6 in the elevating system to drive wheel and drive belt 7, it is rotatory to drive two threaded rods 4, thereby it moves down to drive elevating platform 5 and last pressure disk 8, shorten the distance between pressure disk 2 and the last pressure disk 8 down, make the pipe weldment fix on whole equipment.

Further, guide way 9 has all been seted up at the both ends of test rack 1, and the both ends of elevating platform 5 all are fixed with the guide block of pegging graft in guide way 9, and the lift in-process guide block of elevating platform 5 will slide in guide way 9 all the time, keeps elevating platform 5's stability, and test rack 1 and the bottom four corners fixed mounting of water storage box 11 have the universal wheel for whole equipment is convenient for remove.

The utility model discloses a theory of operation is: when carrying out hydrostatic pressure test to the pipe weldment, place it between lower pressure disk 2 and last pressure disk 8, utilize elevating system to drive elevating platform 5 and last pressure disk 8 and move down, shorten the distance between lower pressure disk 2 and the last pressure disk 8, make the pipe weldment fix on whole equipment, water in the water storage box 11 is continuously poured into along water injection pipe 20 to water pump 16 in the hydrostatic pressure test subassembly in, carry out defeated pressure to whole pipe weldment, and control pressure value and the rate of stepping up through water pressure instrument 12 and controlgear, realize in the measured pipe weldment that the hydrostatic pressure advances, thereby survey its waterproof performance, be convenient for carry out quality monitoring to the pipe weldment welding department and handle, the produced reverse effort will extrude water pressure sealing cushion 19 and supporting disk 21 immigration mounting groove to 24 when fixing the pipe weldment, and make the pipe weldment also get into in mounting groove 24 gradually, the tip of pipe weldment will closely laminate with sealing cushion 19 this moment, and carry out the inflation gas pocket 23 inside under the effect of air cock 15 and inflation equipment and carry out the inflation gas pocket 23 and make the water pump 23 the outer wall of the test, the water pump can utilize the water pump 16 to form the circulation end and increase in the test the hydrostatic pressure circulation end that the test piece, the hydrostatic pressure is increased after the effect appears, the hydrostatic pressure test, the water injection pipe weldment.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Claims

1. The utility model provides a hydrostatic pressure test equipment for weldment welding quality monitoring, includes test rack (1) and fixed mounting at brace table (3) of test rack (1) inner wall, the inner wall top activity of test rack (1) is provided with elevating platform (5), and is provided with elevating system on elevating platform (5), the circular recess has all been seted up to the intermediate position of brace table (3) and the intermediate position of elevating platform (5), and the inner wall of circular recess respectively fixed mounting have down pressure disk (2) and last pressure disk (8), its characterized in that: mounting grooves (24) are formed in the middle of the top of the lower pressure plate (2) and the middle of the bottom of the upper pressure plate (8), supporting plates (21) are attached to the inner walls of the circumferences of the mounting grooves (24), sealing rubber gaskets (19) are bonded to the opposite surfaces of the two supporting plates (21), the opposite surfaces of the two sealing rubber gaskets (19) are arranged to be spherical structures, a buffering assembly is arranged between the two supporting plates (21) and the lower pressure plate (2) as well as the upper pressure plate (8), annular grooves (25) are formed in the inner walls of the circumferences of the mounting grooves (24), air bag rings (23) are fixed to the inner walls of the annular grooves (25), and air nozzles (15) are fixed to one sides of the air bag rings (23);

the testing machine is characterized in that a water storage tank (11) is fixedly mounted at the bottom of one side of the testing machine frame (1), and a hydrostatic pressure testing assembly is arranged at the middle position of the water storage tank (11) and the lower pressing disc (2).

2. The hydrostatic pressure test equipment for weldment weld quality monitoring of claim 1, wherein: hydrostatic pressure test assembly includes water pump (16) of fixed mounting in water storage box (11) one side bottom, and the one end fixed mounting of water pump (16) has drain pipe (17), and one side fixed mounting of drain pipe (17) has water pressure instrument (12), is located down in pressure disk (2) sealed cushion (19) with the mounting disc (21) intermediate position has all been opened the mounting hole, and the bottom intermediate position of pressure disk (2) has seted up the perforation down, and the inner wall of mounting hole is fixed with and passes fenestrate water injection pipe (20), has hose (18) through flange joint between the bottom of water injection pipe (20) and the one end of drain pipe (17).

3. A hydrostatic pressure test apparatus for weldment weld quality monitoring according to claim 2, wherein: buffering subassembly is including offering guide opening (26) at mounting groove (24) bottom both ends, and the bottom of supporting disk (21) is fixed with multilateral post (13) that pass guide opening (26), and the tip of multilateral post (13) all is fixed with spacing dish, all is fixed with spring (14) between spacing dish and lower pressure dish (2) and last pressure disk (8).

4. The hydrostatic pressure test equipment for weldment weld quality monitoring of claim 3, wherein: the bottom of supporting disk (21) all is fixed with retainer plate (22), and retainer plate (22) laminating is on the circumference inner wall of mounting groove (24) and gasbag circle (23).

5. The hydrostatic pressure test equipment for weldment weld quality monitoring of claim 4, wherein: and a protection ring (10) is fixed at the middle position of the top of the support table (3) and the middle position of the bottom of the lifting table (5), a return pipe inserted in the water storage tank (11) is fixed at the bottom of one side of the protection ring (10) at the bottom, and an electromagnetic valve is fixedly installed at the bottom of the return pipe.

6. The hydrostatic pressure test equipment for weldment weld quality monitoring of claim 1, wherein: elevating system includes threaded rod (4) of connecting at brace table (3) top both ends through the bearing, and the both ends of elevating platform (5) all set up with threaded rod (4) looks adaptation screw hole, the top of threaded rod (4) all is fixed with the connecting axle that runs through test frame (1), and the outer wall of connecting axle all is fixed with the drive wheel, and the outer wall transmission of drive wheel is connected with drive belt (7), the top one end fixed mounting of test frame (1) has positive reverse motor (6) that are used for driving the connecting axle.

7. The hydrostatic pressure test equipment for weldment weld quality monitoring of claim 6, wherein: guide grooves (9) are formed in the two ends of the test rack (1), guide blocks inserted into the guide grooves (9) are fixed at the two ends of the lifting platform (5), and universal wheels are fixedly mounted at the four corners of the bottoms of the test rack (1) and the water storage tanks (11).