Full-automatic double-station hydraulic test system for flange short pipe

Abstract

The utility model relates to the technical field of flange short pipe detection equipment, and provides a full-automatic double-station flange short pipe hydraulic test system, which comprises a hydraulic test machine, a pipe hanging device and a walking beam, the hydrostatic testing machine and the pipe hanging device are respectively positioned above the walking beam; the hydrostatic testing machine and the pipe hanging device are perpendicular to the walking beam; the hydrostatic testing machine comprises a first fixed box body, a second fixed box body and two groups of hydrostatic test working mechanisms which are arranged in parallel, each group of hydraulic pressure test working mechanism comprises a pull rod, a suspended beam, a fixed joint, a water injection plug, a water drainage plug and a plug oil cylinder; a fixed knot is arranged on the first fixed box body; the fixed joint is connected with the water injection plug; a plug oil cylinder is arranged on the second fixed box body; a drainage plug is arranged at the end of a telescopic rod of the plug oil cylinder. The flange short pipe hydraulic pressure test device can automatically carry out flange short pipe hydraulic pressure tests, reduces operation difficulty, improves production efficiency, and can adapt to flange short pipe hydraulic pressure tests with different pipe lengths.

Description

Technical Field

[0001] This utility model relates to the technical field of flange short pipe testing equipment, and in particular to a fully automatic dual-station flange short pipe hydrostatic testing system. Background Technology

[0002] Flange short pipes are formed by cutting ductile iron pipes to a certain length and welding flanges to both ends of the ductile iron pipes according to requirements.

[0003] Currently, the diameter of flanged short pipes is generally between DN200 and DN600, with most using standard 6-meter ductile iron pipes. Due to technical constraints such as large variations in pipe length and diameter, and complex production line structures, each flanged short pipe is manually hoisted onto the hydrostatic testing machine for pressure testing during the hydrostatic test. This method is inefficient and difficult to operate. There is no fully automated hydrostatic testing equipment for flanged short pipes.

[0004] Furthermore, current hydraulic pressure testing machines are designed for standard 6-meter flanged short pipes and cannot adapt to hydraulic pressure testing of flanged short pipes of different lengths and diameters. Utility Model Content

[0005] This invention addresses the technical problems of existing technologies where each flange short pipe is manually hoisted onto the hydraulic testing machine for pressure testing, resulting in low testing efficiency and high operational difficulty. It proposes a fully automatic dual-station flange short pipe hydraulic testing system that can automatically perform hydraulic testing on flange short pipes, reducing operational difficulty, improving production efficiency, and adapting to hydraulic testing of flange short pipes of different lengths.

[0006] This utility model provides a fully automatic dual-station flange short pipe hydrostatic testing system, including: a hydrostatic testing machine, a pipe hanging device, and a stepping beam;

[0007] The hydraulic pressure testing machine and the pipe hanging device are located above the walking beam; and the hydraulic pressure testing machine and the pipe hanging device are arranged perpendicular to the walking beam.

[0008] The hydrostatic testing machine includes: a first fixed chamber, a second fixed chamber, and two sets of parallel hydrostatic testing working mechanisms;

[0009] Each set of hydraulic test working mechanisms includes: tie rod, hanging beam, fixed section, water injection plug, drainage plug and plug cylinder;

[0010] A pull rod is connected between the tops of the first fixed housing and the second fixed housing; a fixing section is provided on the first fixed housing; the fixing section is connected to the water injection plug;

[0011] A plug cylinder is installed on the second fixed box; a drain plug is installed at the end of the telescopic rod of the plug cylinder; the drain plug is oriented toward the water injection plug, and the axes of the drain plug and the water injection plug are on the same straight line;

[0012] The pipe hanging device includes: a pipe hanging bracket and two sets of pipe hanging trolleys symmetrically arranged on the pipe hanging bracket;

[0013] Each set of pipe-hanging trolleys includes: a traveling frame, a lifting motor, a lifting beam, a lifting rod, a pipe-hanging cylinder, and a pin shaft;

[0014] The lifting motor is mounted on the traveling frame, and the lifting motor is connected to the lifting rod via a transmission.

[0015] A lifting beam is fixedly installed at the bottom of the lifting rod; a pipe-hanging cylinder is installed on the bottom surface of the lifting beam, and the end of the telescopic rod of the pipe-hanging cylinder is connected to a pin.

[0016] The pins of the two sets of pipe-hanging trolleys are horizontal and facing each other.

[0017] Preferably, the fixed section is connected to the water injection plug via a first intermediate section and a second intermediate section;

[0018] Alternatively, the fixed section can be connected to the water injection plug via the first intermediate section;

[0019] Alternatively, the fixing section can be directly connected to the water injection plug.

[0020] Preferably, the length of the first intermediate section is 1400 mm, and the length of the second intermediate section is 650 mm;

[0021] The stroke of the plug cylinder is 1700mm.

[0022] Preferably, the walking frame is driven to move by a walking motor, a walking sprocket, and a chain.

[0023] Preferably, four guide wheels are mounted on the bottom surface of the lifting beam via a guide wheel frame;

[0024] The pin is positioned between the guide wheels.

[0025] Preferably, it also includes: a centering deflector;

[0026] The centering deflector is located at the front end of the walking beam;

[0027] The centering deflector includes a deflector mechanism and a pushing mechanism.

[0028] Preferably, the deflector mechanism includes: a deflector cylinder, a deflector plate, and two deflector supports;

[0029] The two ends of the baffle plate are respectively hinged to the baffle support;

[0030] The bottom of the deflector plate is connected to the end of the telescopic rod of the deflector cylinder.

[0031] Preferably, the pushing mechanism is disposed on one side of the deflecting mechanism;

[0032] The jacking mechanism includes: a jacking frame, an upper frame plate, a jacking cylinder, and a jacking rod;

[0033] The jacking cylinder is mounted on the jacking frame;

[0034] The end of the telescopic rod of the push cylinder is connected to the push rod;

[0035] An upper frame plate is provided above the pusher frame;

[0036] The push rod is positioned between the push frame and the upper frame plate.

[0037] Preferably, the stepping beam includes: a stepping beam base, a first stepping beam support, a second stepping beam support, a lifting cylinder, a first hinge plate, a second hinge plate, and a stepping beam trolley;

[0038] The stepping beam base is arranged on the track; the rear end of the stepping beam base is provided with a first stepping beam support;

[0039] The second step beam support is disposed above the step beam base, and the second step beam support and the step beam base are respectively hinged with a first hinge plate and a second hinge plate.

[0040] The lifting cylinder is hinged to the stepping beam base, and the end of the telescopic rod of the lifting cylinder is hinged to the second hinge plate.

[0041] The second step beam support can be movably mounted on the step beam trolley.

[0042] Preferably, the stepping beam trolley includes: a stepping beam trolley bracket, an extension plate, two sets of fixed roller mechanisms, and two sets of adjustable roller mechanisms;

[0043] The stepping beam trolley bracket is slidably mounted on the second stepping beam bracket; a longitudinal extension plate is fixedly mounted below the stepping beam trolley bracket; and a centering rear track is mounted at the front end of the stepping beam trolley bracket.

[0044] A translation cylinder is hinged to the base of the stepping beam, and the end of the telescopic rod of the translation cylinder is hinged to the bottom end of the extension plate.

[0045] The stepping beam trolley support is equipped with two sets of fixed roller mechanisms and two sets of adjustable roller mechanisms.

[0046] Each set of adjustable idler roller mechanisms includes a fixed-position idler roller and a position-adjustable idler roller; the position-adjustable idler roller is connected to the end of the telescopic rod of the spacing adjustment hydraulic cylinder;

[0047] The spacing adjustment hydraulic cylinder is mounted on the walking beam trolley support.

[0048] This invention provides a fully automatic dual-station flange short pipe hydrostatic testing system. It features a simple structure, reasonable process layout, modular manufacturing and assembly, and a low failure rate. Installation and maintenance requirements are relatively low, reducing operating and maintenance costs, while also facilitating inspection and replacement. The two fixed housings of this hydrostatic testing machine are connected by tie rods, and the movement of the drain plug is restricted by a hanging beam, improving the safety of the hydrostatic testing machine. By adjusting the connection between the fixed section and the water injection plug, and using flange installation for each intermediate section, this invention facilitates conversion between three pipe length ranges, adapting to hydrostatic testing of flange short pipes of different lengths. It is easy to adjust, has a wide range of applications, and further reduces operating costs. This invention uses a dual-station approach for flange short pipe hydrostatic testing, with the testing process being automatic, eliminating the need for hoisting, reducing operational difficulty, and improving production efficiency.

[0049] Therefore, this fully automatic dual-station flange short pipe hydrostatic testing system possesses multiple advantages: stable operation, low maintenance and operating costs; it can perform online fully automatic pressure testing, with pipe diameters ranging from DN80 to DN600, pipe lengths from 500mm to 3700mm, and a test flange short pipe length variation exceeding 3 meters, making it widely adaptable. This structure is currently in production and can be applied to production lines in the ductile iron pipe metallurgical industry. Long-term use has yielded ideal results, and its market prospects are very broad. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of the fully automatic dual-station flange short pipe hydrostatic testing system provided by this utility model;

[0051] Figure 2 This is a top view of the fully automatic dual-station flange short pipe hydrostatic testing system provided by this utility model;

[0052] Figure 3 This is a schematic diagram of the structure of the hydrostatic testing machine provided by this utility model. Figure 1 (Pipe length 500-1700mm);

[0053] Figure 4 This is a schematic diagram of the structure of the hydrostatic testing machine provided by this utility model. Figure 2 (Pipe length 1700-2400mm);

[0054] Figure 5 This is a schematic diagram of the structure of the hydrostatic testing machine provided by this utility model. Figure 3(Pipe length 2400-3700mm);

[0055] Figure 6 This is a schematic diagram of the pipe hanging device provided by this utility model;

[0056] Figure 7 This is a top view of the pipe hanging device provided by this utility model;

[0057] Figure 8 This is a side view of the pipe hanging device provided by this utility model;

[0058] Figure 9 This is a schematic diagram of the centering deflector device provided by this utility model;

[0059] Figure 10 This is a schematic diagram of the structure of the stepping beam provided by this utility model;

[0060] Figure 11 This is a top view of the walking beam provided by this utility model;

[0061] Figure 12 This is a side view of the walking beam provided by this utility model.

[0062] Figure reference numerals: 1. Hydraulic pressure testing machine; 2. Pipe hanging device; 3. Stepping beam; 4. Centering stop device; 5. Flange short pipe; 101. First fixed box; 102. Fixed section; 103. Tie rod; 104. First intermediate section; 105. Second intermediate section; 106. Water injection plug; 107. Hanging beam; 108. Drainage plug; 109. Plug cylinder; 110. Second fixed box; 201. Pipe hanging bracket; 202. Travel motor; 203. Travel sprocket; 204. Lifting motor; 205. Lifting beam; 206. Lifting rod; 207. Pipe hanging cylinder; 208. Pin shaft; 209. Guide wheel; 210. Traveling frame; 301 302. Stepping beam base; 303. Translation cylinder; 304. Stepping beam trolley bracket; 305. First hinge plate; 306. Position-fixing roller; 307. Spacing adjustment hydraulic cylinder; 308. Centering rear track; 309. First stepping beam bracket; 310. Lifting cylinder; 311. Second hinge plate; 312. Position-adjustable roller; 313. Extension plate; 314. Fixed roller mechanism; 315. Second stepping beam bracket; 316. Axial cylinder; 407. Deflector support column; 408. Deflector plate; 409. Deflector cylinder; 4000. Deflector block; 401. Pushing frame; 402. Pushing cylinder; 403. Pushing rod; 404. Upper frame plate. Detailed Implementation

[0063] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0064] like Figure 1-2 As shown in the figure, the fully automatic dual-station flange short pipe hydrostatic testing system provided in this utility model embodiment includes: a hydrostatic testing machine 1, a pipe hanging device 2, a stepping beam 3, and a centering and deflecting device 4.

[0065] The hydraulic pressure testing machine 1 and the pipe hanging device 2 are respectively located above the stepping beam 3; and the hydraulic pressure testing machine 1 and the pipe hanging device 2 are arranged perpendicular to the stepping beam 3; the centering and deflecting device 4 is arranged at the front end of the stepping beam 3.

[0066] The hydraulic pressure testing machine 1 includes: a first fixed housing 101, a second fixed housing 110, and two sets of parallel hydraulic pressure testing working mechanisms. This invention features two sets of hydraulic pressure testing working mechanisms to achieve dual-station hydraulic pressure testing, thereby improving the efficiency of hydraulic pressure testing.

[0067] like Figure 3-5 As shown, each set of water pressure test working mechanisms includes: tie rod 103, hanging beam 107, fixed section 102, water injection plug 106, drainage plug 108 and plug cylinder 109.

[0068] A pull rod 103 connects the tops of the first fixed housing 101 and the second fixed housing 110; a hanging beam 107 is slidably mounted on the pull rod 103. A fixing section 102 is provided on the first fixed housing 101; the fixing section 102 is connected to the water inlet plug 106. Specifically, the fixing section 102 is connected to the water inlet plug 106 through a first intermediate section 104 and a second intermediate section 105 (e.g., ...). Figure 3 This allows for water pressure testing of flanged short pipes with lengths of 500-1700mm; alternatively, the fixed section 102 is connected to the water injection plug 106 via the first intermediate section 104 (e.g., Figure 4 This allows for hydrostatic testing of flanged short pipes with lengths of 1700-2400mm; alternatively, the fixed section 102 can be directly connected to the water injection plug 106 (e.g., Figure 5This invention enables hydrostatic testing of flanged short pipes with lengths ranging from 2400 to 3700 mm. The first intermediate section 104 has a length of 1400 mm, and the second intermediate section 105 has a length of 650 mm; the stroke of the plug cylinder 109 is 1700 mm. By adjusting the connection between the fixed section 102 and the water-filling plug 106, this invention can adapt to hydrostatic testing of flanged short pipes of different lengths, offering convenient adjustment and a wide range of applications. The flange installation of each intermediate section facilitates conversion between three pipe length ranges, further reducing operating costs.

[0069] A plug cylinder 109 is provided on the second fixed box 110; a drain plug 108 is provided at the end of the telescopic rod of the plug cylinder 109; the drain plug 108 is positioned toward the water injection plug 106, and the axes of the drain plug 108 and the water injection plug 106 are on the same straight line.

[0070] The extension rod of the plug cylinder 109 of this invention can drive the drain plug 108 to clamp the flange short pipe. The drain plug 108 is connected to the hanging beam 107, and the movement of the drain plug 108 is restricted by the hanging beam 107, improving the safety of the hydrostatic testing machine 1. The water injection plug 106 is connected to the low-pressure pump and the booster cylinder. The low-pressure water injection of the hydrostatic testing machine 1 of this invention uses the low-pressure pump, and the high-pressure water injection uses the booster cylinder, ensuring water injection efficiency. The water injection plug 106 injects water only through the water injection hose, and the drain outlet drains water only through the drain plug 108, without other auxiliary connecting mechanisms, ensuring the sealing of the hydrostatic test.

[0071] like Figure 6-8 As shown, the pipe-hanging device 2 includes: a pipe-hanging bracket 201 and two sets of pipe-hanging trolleys symmetrically arranged on the pipe-hanging bracket 201. Each set of pipe-hanging trolleys includes: a traveling frame 210, a lifting motor 204, a lifting beam 205, a lifting rod 206, a pipe-hanging cylinder 207, and a pin 208.

[0072] The traveling frame 210 is driven to move by a traveling motor 202, a traveling sprocket 203, and a chain. The traveling motor 202 and the traveling sprocket 203 are mounted on the pipe hanging bracket 201. The traveling motor 202 drives the traveling sprocket 203 and the chain, causing the traveling frame 210 to move on the pipe hanging bracket 201.

[0073] The lifting motor 204 is mounted on the traveling frame 210 and is connected to the lifting rod 206 via a transmission connection. A lifting beam 205 is fixedly installed at the bottom of the lifting rod 206. A pipe-hanging cylinder 207 is installed on the bottom surface of the lifting beam 205, and the end of the telescopic rod of the pipe-hanging cylinder 207 is connected to a pin 208. The pins 208 of the two sets of pipe-hanging trolleys are horizontally aligned and facing each other. Four upper and lower guide wheels 209 are mounted on the bottom surface of the lifting beam 205 via a guide wheel frame. The pins 208 are positioned between the upper and lower guide wheels 209, which provide guidance.

[0074] The lifting motor 204 of this utility model drives the lifting rod 206 to rise and fall, thereby raising and lowering the lifting beam 205 and its components, which can accommodate flange short pipes of different diameters. The hanging cylinders 207 of the two sets of hanging trolleys extend towards each other and can be inserted into the flange short pipe through the pin 208 to hang the flange short pipe.

[0075] like Figure 9 As shown, the centering deflector 4 includes a deflector mechanism and a pushing mechanism.

[0076] The deflecting mechanism includes: a deflecting cylinder 403, a deflecting plate 402, and two deflecting supports 401; both ends of the deflecting plate 402 are hinged to the deflecting supports 401; the bottom of the deflecting plate 402 is connected to the end of the telescopic rod of the deflecting cylinder 403. Specifically, the deflecting plate 402 is an obtuse-angled plate; multiple deflecting blocks 404 are provided on the deflecting plate 402. The incoming pipe will be placed within the corresponding deflecting block 404 interval according to the length of the flange short pipe. The deflecting blocks 404 are used to position the flange end face of the flange short pipe against the stop block during alignment. The deflecting plate 402 can block the flange short pipe; after alignment, the extension rod of the deflecting cylinder 403 extends to allow the deflecting plate 402 to flip and deflect the flange short pipe.

[0077] The jacking mechanism is located on one side of the deflecting mechanism. The jacking mechanism includes: a jacking frame 405, an upper frame plate 408, a jacking cylinder 406, and a jacking rod 407. The jacking cylinder 406 is mounted on the jacking frame 405. The telescopic rod end of the jacking cylinder 406 is connected to the jacking rod 407. The upper frame plate 408 is positioned above the jacking frame 405. The jacking rod 407 is located between the jacking frame 405 and the upper frame plate 408. Multiple pressure rollers are provided on the top of the jacking frame 405 and the upper frame plate 408, guiding the jacking rod 407. The extension of the telescopic rod of the jacking cylinder 406 drives the jacking rod 407 to push the flange short pipe for centering.

[0078] like Figure 10-12As shown, the stepping beam 3 includes: a stepping beam base 301, a first stepping beam support 308, a second stepping beam support 314, a lifting cylinder 309, a first hinge plate 304, a second hinge plate 310, and a stepping beam trolley.

[0079] The stepping beam base 301 is arranged on the track, enabling the stepping beam 3 to move on the track; a first stepping beam support 308 is provided at the rear end of the stepping beam base 301. The axial movement of the stepping beam 3 is driven by an axial hydraulic cylinder 315.

[0080] The second step beam support 314 is disposed above the step beam base 301. A first hinge plate 304 and a second hinge plate 310 are respectively hinged between the second step beam support 314 and the step beam base 301. The lifting cylinder 309 is hinged to the step beam base 301, and the end of the telescopic rod of the lifting cylinder 309 is hinged to the second hinge plate 310. The step beam trolley is movably disposed on the second step beam support 314.

[0081] The stepping beam trolley includes: a stepping beam trolley bracket 303, an extension plate 312, two sets of fixed roller mechanisms 313, and two sets of adjustable roller mechanisms. The stepping beam trolley bracket 303 is slidably mounted on the second stepping beam bracket 314; the longitudinal extension plate 312 is fixedly mounted below the stepping beam trolley bracket 303; the front end of the stepping beam trolley bracket 303 is provided with a centering rear rail 307, which is used to roll the flange short pipe after centering by the centering stop device 4 onto the stepping beam 3, and the centering rear rail 307 can be axially adjusted.

[0082] A translation cylinder 302 is hinged to the stepping beam base 301. The end of the telescopic rod of the translation cylinder 302 is hinged to the bottom end of the extension plate 312. The extension and retraction of the telescopic rod of the translation cylinder 302 can drive the stepping beam trolley bracket 303 to move along the second stepping beam bracket 314. The translation cylinder 302 can be located between the first fixed box 101 and the second fixed box 110 to make full use of the space.

[0083] The stepping beam trolley support 303 is equipped with two sets of fixed roller mechanisms 313 and two sets of adjustable roller mechanisms. Each adjustable roller mechanism includes a fixed roller 305 and an adjustable roller 311; the adjustable roller 311 is connected to the end of the telescopic rod of the spacing adjustment hydraulic cylinder 306; the spacing adjustment hydraulic cylinder 306 is mounted on the stepping beam trolley support 303. Both the fixed roller 305 and the adjustable roller 311 are V-shaped rollers. The spacing adjustment hydraulic cylinder 306 can adjust the position of the adjustable roller 311, thereby adjusting the spacing between the two rollers, which can accommodate flange short pipes of different lengths.

[0084] In this invention, the stepping beam 3 has a lifting cylinder 309 whose extension rod can lift the second stepping beam support 314 and its onboard stepping beam trolley, moving it slightly to the first stepping beam support 308. After lifting, the translation cylinder 302 extends, and the stepping beam trolley and its onboard components translate along the second stepping beam support 314, thus achieving the lifting and translation of the flange short pipe driven by the stepping beam 3. In this invention, the stepping beam 3 can lift to two heights: one height to transport the flange short pipe to the hanging device 2, and the other to the pressure testing height. The stepping beam 3 can advance in single or double positions. Two sets of fixed roller mechanisms 313 are used to output the flange short pipe after the test is completed.

[0085] The working process of the fully automatic dual-station flange short pipe hydrostatic testing system provided by this utility model is as follows:

[0086] 1. The centering stop device 4 centers the flange short pipe to be tested. After the flange short pipe is centered, the stop plate 402 of the centering stop device 4 flips, and the flange short pipe rolls onto the adjustable idler mechanism via the centering track 307 on the stepping beam 3.

[0087] 2. The stepping beam 3 is lifted and advances one position. The pipe-hanging cylinders 207 of the two sets of pipe-hanging trolleys drive the pins 208 to extend, and the pins 208 are inserted into the flange short pipe. The stepping beam 3 descends to the initial height, and the flange short pipe is hung on the pipe-hanging device 2.

[0088] 3. The walking beam 3 moves back one station and returns to its initial position. At this time, the centering stop device 4 has completed the centering of the second flange short pipe.

[0089] 4. The deflector plate 402 of the centering deflector device 4 flips over, and the second flange short pipe rolls onto the adjustable idler mechanism via the centering rear track 307 on the stepping beam 3.

[0090] 5. The stepping beam 3 is lifted. At the same time, the adjustable roller mechanism on the stepping beam 3 lifts the flange short pipe on the pipe hanging device 2. The pipe hanging cylinders 207 of the two sets of pipe hanging trolleys drive the pins 208 to retract, releasing the flange short pipe. At this time, there are two flange short pipes to be tested on the two sets of adjustable roller mechanisms of the stepping beam 3.

[0091] 6. The stepping beam 3 continues to lift, raising the two flange short pipes to be tested to the water pressure test height; the two sets of fixed roller mechanisms 313 of the stepping beam 3 lift the two tested flange short pipes clamped on the water pressure testing machine 1. The stepping beam 3 moves forward, transporting the two flange short pipes to be tested to the water pressure test position of the water pressure testing machine 1, and outputting the two tested flange short pipes from the water pressure testing machine 1.

[0092] 7. The plug cylinder 109 of the hydraulic pressure testing machine 1 clamps the flange short pipe to be tested and begins to fill the flange short pipe with low-pressure water. After the low-pressure water is full, high-pressure water is then filled. At this time, the stepping beam 3 always supports the flange short pipe and keeps it stationary.

[0093] 8. After the hydraulic pressure testing machine 1 has completed the pressure holding and the high-pressure water has been discharged, the plug cylinder 109 opens. Once all the water in the flange short pipe has flowed out, the plug cylinder 109 extends and clamps the flange short pipe again, waiting for the walking beam 3 to remove the pipe before outputting it. The walking beam 3 descends to its initial height and retracts two positions, returning to its initial position.

[0094] 9. All equipment repeats the above actions.

[0095] The hydraulic pressure testing machine 1, the pipe hanging device 2, the stepping beam 3, and the centering stop device 4 of this utility model are all electrically connected to the PLC controller. The linkage between each device is controlled by the PLC controller to ensure the linkage and interlocking of each action.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A full-automatic double-station flange short pipe hydrostatic test system, characterized in that, The utility model relates to a kind of water pressure testing machine, hanging pipe device and step beam, comprising: Water pressure testing machine (1), hanging pipe device (2) and step beam (3); The water pressure testing machine (1) and hanging pipe device (2) are located above the step beam (3) respectively;And the water pressure testing machine (1) and hanging pipe device (2) are vertically arranged with the step beam (3); The water pressure testing machine (1) comprises: first fixed box (101), second fixed box (110) and two groups of water pressure testing working mechanism arranged in parallel; Each group of water pressure testing working mechanism comprises: pull rod (103), hanging beam (107), fixed knot (102), water injection plug (106), drainage plug (108) and plug oil cylinder (109); The first fixed box (101) and the second fixed box (110) are connected by the pull rod (103) between the top;Fixed knot (102) is provided on the first fixed box (101);The fixed knot (102) is connected with the water injection plug (106); The second fixed box (110) is provided with plug oil cylinder (109);The telescopic rod end of the plug oil cylinder (109) is provided with drainage plug (108);The drainage plug (108) is arranged towards the water injection plug (106), and the axis of the drainage plug (108) and the water injection plug (106) is on the same straight line; The hanging pipe device (2) comprises: hanging pipe support (201) and two groups of hanging pipe trolley symmetrically arranged on the hanging pipe support (201); Each group of hanging pipe trolley comprises: walking frame (210), lifting motor (204), lifting beam (205), lifting rod (206), hanging pipe cylinder (207) and pin shaft (208); The lifting motor (204) is installed on the walking frame (210), and the lifting motor (204) is drivingly connected with the lifting rod (206); The lifting rod (206) is fixedly provided with the lifting beam (205) at the bottom;The lifting beam (205) is installed with the hanging pipe cylinder (207) on the bottom surface, and the telescopic rod end of the hanging pipe cylinder (207) is connected with the pin shaft (208); The pin shafts (208) of the two groups of hanging pipe trolleys are horizontally and oppositely arranged.

2. The full-automatic double-station flange spool hydrostatic testing system according to claim 1, characterized in that, The fixed knot (102) is connected with the water injection plug (106) through the first intermediate knot (104) and the second intermediate knot (105); Alternatively, the fixed knot (102) is connected with the water injection plug (106) through the first intermediate knot (104); Alternatively, the fixed knot (102) is directly connected with the water injection plug (106).

3. The full-automatic double-station flange spool hydrostatic testing system according to claim 2, characterized in that, The length of the first intermediate knot (104) is 1400mm, and the length of the second intermediate knot (105) is 650mm; The stroke of the plug oil cylinder (109) is 1700mm.

4. The full-automatic double-station flange spool hydrostatic testing system according to claim 1, characterized in that, The walking frame (210) is driven to walk by walking motor (202), walking sprocket (203) and chain.

5. The fully automatic double-station flange spool hydrotest system of claim 4, wherein, The bottom surface of the lifting beam (205) is installed with four guide wheels (209) up and down by guide wheel frame; The pin shaft (208) is arranged between the guide wheels (209).

6. The fully automatic double-station flange spool hydrotest system of claim 1, wherein, Further comprising: Centering blocking device (4); The centering blocking device (4) is arranged at the front end of the step beam (3). The centering and blocking device (4) comprises a blocking mechanism and a pushing mechanism.

7. The fully automatic double-station flange nipple hydrotest system of claim 6, wherein, The blocking mechanism comprises a blocking oil cylinder (403), a blocking plate (402) and two blocking struts (401). Two ends of the blocking plate (402) are respectively hinged to the blocking struts (401). The bottom of the blocking plate (402) is connected to the end of the telescopic rod of the blocking oil cylinder (403).

8. The fully automatic double-station flange spool hydrotest system of claim 7, wherein, The pushing mechanism is arranged on one side of the blocking mechanism. The pushing mechanism comprises a pushing frame (405), an upper frame plate (408), a pushing oil cylinder (406) and a pushing rod (407). The pushing oil cylinder (406) is installed on the pushing frame (405). The end of the telescopic rod of the pushing oil cylinder (406) is connected to the pushing rod (407). The upper frame plate (408) is arranged above the pushing frame (405). The pushing rod (407) is arranged between the pushing frame (405) and the upper frame plate (408).

9. The fully automatic double-station flange nipple hydrotest system, as claimed in claim 1, wherein, The step beam (3) comprises a step beam base (301), a first step beam support (308), a second step beam support (314), a lifting oil cylinder (309), a first hinged plate (304), a second hinged plate (310) and a step beam trolley. The step beam base (301) is arranged on a track. The second step beam support (314) is arranged above the step beam base (301), and the first hinged plate (304) and the second hinged plate (310) are respectively hinged between the second step beam support (314) and the step beam base (301). The lifting oil cylinder (309) is hinged to the step beam base (301), and the end of the telescopic rod of the lifting oil cylinder (309) is hinged to the second hinged plate (310). The step beam trolley is movably arranged on the second step beam support (314).

10. The fully automatic double-station flange nipple hydrotest system of claim 9, wherein, The step beam trolley comprises a step beam trolley support (303), an extension plate (312), two groups of fixed roller mechanisms (313) and two groups of adjustable roller mechanisms. The step beam trolley support (303) is slidingly arranged on the second step beam support (314), and the extension plate (312) is fixedly arranged below the step beam trolley support (303). The step beam base (301) is hinged to a translation oil cylinder (302), and the end of the telescopic rod of the translation oil cylinder (302) is hinged to the bottom end of the extension plate (312). The step beam trolley support (303) is provided with two groups of fixed roller mechanisms (313) and two groups of adjustable roller mechanisms. Each adjustable roller mechanism comprises a position-fixed roller (305) and a position-adjustable roller (311), and the position-adjustable roller (311) is connected to the end of the telescopic rod of a spacing adjustment hydraulic cylinder (306). The spacing adjustment hydraulic cylinder (306) is arranged on the step beam trolley support (303).

Images