Automatic continuous detection device and method for bridge-type concentric water distributor

Abstract

The invention discloses an automatic continuous detection device for a bridge-type concentric water distributor, which belongs to the technical field of oilfield water injection development. The invention provides an automatic continuous detection device for a bridge-type concentric water distributor, which comprises: a numerically controlled torque meter, a fixed sealing head, a pressure test working cylinder, a movable sealing head, a clamp, a hydraulic cylinder, a feeding device for a test piece, an external pressure joint, an internal pressure joint and the measuring and adjusting driving rod. A fixed sealing head is fixed at one end of the pressure test working cylinder, and one end of the measuring and adjusting driving rod is located outside the pressure test working cylinder, so that online continuous detection of the bridge-type concentric water distributor is realized. The test operation is convenient and reliable. The whole process adopts hydraulic control, which eliminates manual operation, and the data is objective and reliable. The human factor is small, the operation is simple and convenient, and the test process is stable and scientific.

Description

Technical Field

[0001] The invention belongs to the technical field of oilfield water injection development, and in particular relates to an automatic continuous detection device and method for a bridge-type concentric water distributor. Background Art

[0002] Since 2012, Changqing Oilfield has independently developed the bridge-type concentric stratified water injection technology and the bridge-type concentric water distributor. In 2015, Changqing Oilfield promoted and applied it comprehensively and it was defined by CNPC as the third-generation stratified water injection technology. It was promoted and applied within CNPC. So far, more than 6,000 wells have been applied with the bridge-type concentric water injection. Taking Changqing Oilfield as an example, about 400 new wells are added annually, and about 2,000 wells are inspected for water injection, totaling 2,400 wells. On average, about 2.3 water distributors are required for each well, and about 5,500 bridge-type concentric water distributors are required each year. At present, the detection of bridge-type concentric water distributors mainly relies on the ground normal pressure torque test and ground pressure sealing test of single-point water distributors. The test process is relatively simple, and there is no standard detection device. The whole process requires manual operation, which is complicated and risky, and the quality of well entry tools cannot be effectively guaranteed. Summary of the invention

[0003] The present invention provides an automatic continuous detection device and method for a bridge-type concentric water distributor, aiming to solve the problem in the prior art that the detection of the bridge-type concentric water distributor currently mainly relies on the ground normal pressure torque test and the ground pressure sealing test of the single-pipe water distributor, the testing process is relatively simple, and there is no standard detection device. The whole process needs to be manually operated, the operation is complicated, the risk is high, and the quality of the well tools cannot be effectively guaranteed.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] The automatic continuous detection device of the bridge type concentric water distributor comprises: a numerically controlled torque meter, a fixed sealing head, a pressure test working cylinder, a movable sealing head, a hydraulic cylinder, a feeding device for the test piece, an external pressure joint, an internal pressure joint and the measuring and adjusting driving rod. The fixed sealing head is fixed at one end of the pressure test working cylinder, one end of the measuring and adjusting driving rod is located outside the pressure test working cylinder, and the other end passes through the fixed sealing head and is located inside the pressure test working cylinder. A numerically controlled torque meter is arranged outside the pressure test working cylinder, and a water nozzle opening adjustment device is arranged inside the pressure test working cylinder. The numerically controlled torque meter is connected to the pressure test working cylinder. The test and adjustment driving rod is connected in transmission with the faucet opening adjustment device; the other end of the pressure test working cylinder is provided with a movable sealing head and the hydraulic cylinder, the movable sealing head and the transmission end of the hydraulic cylinder are fixedly connected, the central axis of the movable sealing head is coaxial with the central axis of the pressure test working cylinder, the transmission direction of the hydraulic cylinder is parallel to the central axis of the pressure test working cylinder, a liftable feeding device for the test piece is arranged between the pressure test working cylinder and the movable sealing head, an internal pressure joint is arranged on the fixed sealing head, and an external pressure joint is arranged on the pressure test working cylinder.

[0006] The test piece loading device comprises a flap mechanism, a tool table and a hydraulic lifter, the upper surface of the tool table has a slope, the tool table is located at the lower end of the pressure test working cylinder and the movable sealing head, and the slope direction of the tool table is perpendicular to the central axis of the pressure test working cylinder;

[0007] The hydraulic lifter is located at the bottom of the tool bench. The hydraulic lifter is located directly below the central axis of the pressure test working cylinder. The transmission direction of the hydraulic lifter is perpendicular to the central axis of the pressure test working cylinder. There is a through hole between the upper surface and the lower surface of the tool bench. The transmission shaft of the hydraulic lifter passes through the through hole and extends to the upper surface of the tool bench and is hinged to the flap mechanism. A servo motor is provided between the transmission shaft of the flap mechanism and the hydraulic lifter. The servo motor is fixed on the hydraulic lifter. The transmission shaft of the servo motor is rotatably connected to the flap mechanism. The transmission shaft of the servo motor is coaxial with the transmission shaft of the hydraulic lifter and the hinge shaft at the hinge of the flap mechanism.

[0008] The bottom of the flap mechanism is located on the upper surface of the tool bench and has a groove for the flap mechanism to be retracted into the tool bench, and the bottom of the groove is parallel to the upper surface of the tool bench.

[0009] The bottom of the tool bench is provided with a support frame, and the tool bench, the pressure testing working cylinder, the hydraulic lifter, and the fixed sealing head are respectively fixed on the support frame.

[0010] The surface of the flap mechanism is provided with a semi-cylindrical groove, and the flap mechanism is provided with electromagnets evenly distributed on the surface of the flap mechanism;

[0011] A clamp is provided between the movable sealing head and the hydraulic cylinder, one end of the clamp is detachably connected to the movable sealing head, and the other end of the clamp is fixedly connected to the driving end of the hydraulic cylinder.

[0012] A speed controller is provided between the digitally controlled torque meter and the measuring and adjusting driving rod, and the digitally controlled torque meter is transmission-connected to the measuring and adjusting driving rod via the speed controller.

[0013] A start limiter for monitoring the top position of the test piece is arranged at the top of the test piece feeding device, and a stop limiter for monitoring the end position of the movable sealing head is arranged on the side of the movable sealing head. The start limiter and the stop limiter are fixed relative to the pressure test working cylinder.

[0014] It also includes a control module, a hydraulic lifter control module, a hydraulic cylinder control module and a servo motor control module. The start limiter, the stop limiter, the CNC torque meter, the hydraulic lifter control module, the hydraulic cylinder control module and the servo motor control module are electrically connected to the control module respectively. The hydraulic cylinder is electrically connected to the control module through the hydraulic cylinder control module, the servo motor is electrically connected to the control module through the servo motor control module, and the hydraulic lifter is electrically connected to the control module through the hydraulic lifter control module.

[0015] A sealing step for docking with the test piece is arranged inside the fixed sealing head, and a sealing rubber ring is arranged on the sealing step.

[0016] A method for automatic continuous detection of a bridge-type concentric water distributor, the method comprising:

[0017] Step 1: Place the test piece on the tool table and check whether it is complete;

[0018] Step 2: The test piece loading device receives the test piece and lifts the test piece to the test height;

[0019] Step 3: The hydraulic cylinder pushes the clamp to dock with the movable sealing head, and pushes the test piece into the pressure test working cylinder, completing the docking and sealing of the fixed sealing head, the movable sealing head and the pressure test working cylinder;

[0020] Step 4: Connect the internal pressure joint to high-pressure water to complete the internal pressure sealing test of the test piece;

[0021] Step 5: The internal pressure joint is connected to high-pressure water, stops, and releases pressure, and the external pressure joint is connected to high-pressure water to complete the external pressure sealing test;

[0022] Step 6: The high-pressure water is connected to the external pressure joint, and the pressure is released. The CNC torque meter is started, and the water nozzle opening adjustment device is driven to change the water nozzle opening of the test piece to test the normal pressure torque;

[0023] Step 7: The internal pressure joint is connected to high-pressure water to establish a pressurized environment for the test piece. The CNC torque meter is started to drive the water nozzle opening adjustment device to change the water nozzle opening of the test piece to test the pressurized torque;

[0024] Step 8: After the test is completed, the internal pressure joint is disconnected from the high-pressure water, the CNC torque meter stops, and the pressure relief is completed;

[0025] Step 9: The hydraulic cylinder retracts the clamp to remove the test piece from the pressure test cylinder to complete the test;

[0026] Step 10: After the test piece loading device lowers and removes the test piece, it lifts up the next test piece.

[0027] The beneficial effects of the present invention are that it realizes online continuous detection of the bridge-type concentric water distributor, the test operation is convenient and reliable, the whole process is hydraulically controlled, manual operation is unnecessary, the data is objective and reliable, the human factor is small, the operation is simple and convenient, and at the same time the test process is guaranteed to be smooth and scientific. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall structural diagram of an embodiment of the automatic continuous detection device of the bridge type concentric water distributor of the present invention.

[0029] Figure 2 for Figure 1 Left view structure diagram.

[0030] Figure 3 It is a schematic diagram of the structure of the test piece tested by the automatic continuous detection device for the bridge type concentric water distributor of the present invention.

[0031] The reference numerals in the figure are: 1. CNC torque meter; 2. Speed ​​controller; 3. Fixed sealing head; 4. Pressure test working cylinder; 5. Start limiter; 6. Movable sealing head; 7. Stop limiter; 8. Clamp; 9. Reverse push hydraulic joint; 10. Forward push hydraulic joint; 11. Support frame; 12. Tool table; 13. Flap mechanism; 14. Hydraulic lifter; 15. Water nozzle opening adjustment device; 16. External pressure joint; 17. Internal pressure joint; 18. Measurement and adjustment drive rod; 19. Water nozzle of the test piece. DETAILED DESCRIPTION

[0032] First of all, it should be noted that in various embodiments of the present invention, the terms involved are:

[0033] The digital torque meter 1 is a device for measuring torque and is a mature device in the prior art.

[0034] The clamp 8 is used for detachably clamping movable sealing heads 6 of different types.

[0035] The water nozzle opening adjustment device 15 is a prior art, which applies the patented technology of the concentric electric downhole measuring and adjusting instrument of patent CN201210417857.4.

[0036] The flap mechanism 13, such as Figure 2 As shown, the flap mechanism 13 is block-shaped or plate-shaped, and is rotatably connected to the transmission end of the hydraulic lifter 14. Its main function is to rotate along the transmission end of the hydraulic lifter 14 under the drive of the servo motor.

[0037] The hydraulic lifter 14 is a prior art device for vertically lifting the flap mechanism 13 .

[0038] The following will introduce in detail the automatic continuous detection scheme of the bridge type concentric water distributor provided by the embodiment of the present invention through several specific embodiments.

[0039] Example 1

[0040] Please refer to Figure 1 and Figure 3 , which shows the overall structural diagram of an embodiment of an automatic continuous detection device for a bridge-type concentric water distributor provided by an embodiment of the present invention, the automatic continuous detection device for a bridge-type concentric water distributor comprises: a numerically controlled torque meter 1, a fixed sealing head 3, a pressure test working cylinder 4, a movable sealing head 6, a hydraulic cylinder, a feeding device for a piece to be tested, an external pressure joint 16, an internal pressure joint 17 and the measuring and adjusting driving rod 18, one end of the pressure test working cylinder 4 is fixed with a fixed sealing head 3, one end of the measuring and adjusting driving rod 18 is located outside the pressure test working cylinder 4, and the other end passes through the fixed sealing head 3 and is located inside the pressure test working cylinder 4, the pressure test working cylinder 4 is provided with a numerically controlled torque meter 1, the pressure test working cylinder 4 is provided with a fixed sealing head 3, and the pressure test working cylinder 4 is provided with a movable sealing head 6, a hydraulic cylinder, a feeding device for a piece to be tested, an external pressure joint 16, an internal pressure joint 17 and the measuring and adjusting driving rod 18. A water nozzle opening adjustment device 15 is provided in the working cylinder 4, and the CNC torque meter 1 is connected to the water nozzle opening adjustment device 15 through a measuring and adjusting driving rod 18; the other end of the pressure test working cylinder 4 is provided with a movable sealing head 6 and the hydraulic cylinder, the movable sealing head 6 and the driving end of the hydraulic cylinder are fixedly connected, the central axis of the movable sealing head 6 is coaxial with the central axis of the pressure test working cylinder 4, the driving direction of the hydraulic cylinder is parallel to the central axis of the pressure test working cylinder 4, and a liftable feeding device for the test piece is provided between the pressure test working cylinder 4 and the movable sealing head 6, an internal pressure joint 17 is provided on the fixed sealing head 3, and an external pressure joint 16 is provided on the pressure test working cylinder 4.

[0041] In the above embodiment, the test part specifically tests the torque related to the water nozzle opening of the test piece by the numerically controlled torque meter 1. In the entire bridge-type concentric water distributor automatic continuous test device, the test piece is installed in a test cylinder composed of a fixed sealing head 3, a pressure test working cylinder 4 and a movable sealing head 6. The water nozzle opening adjustment device 15 in the test cylinder cooperates with the water nozzle 19 of the test piece. The water nozzle opening adjustment device 15 is powered by the numerically controlled torque meter 1, and the power is transmitted to the water nozzle opening adjustment device 15 through the measuring and adjusting driving rod 18 to control the water nozzle opening size of the water nozzle opening adjustment device 15.

[0042] An internal pressure joint 17 is provided on the fixed sealing head 3 of the test cylinder, and an external pressure joint 16 is provided on the pressure test working cylinder 4. During the test, external high-pressure water can be input to the test piece from the internal pressure joint 17 or the external pressure joint 16 to provide a test environment for the test piece. The water supply pressure can be manually controlled or supplied by a water supply device.

[0043] In order to make the entire test more convenient, a liftable test piece loading device is used to transport the test piece to the loading position of the test cylinder. When the test piece is at the loading position, the hydraulic cylinder drives the movable sealing head 6 to push the test piece into the test cylinder, and the movable sealing head 6 installs the test piece into the working cylinder.

[0044] Example 2

[0045] For further information, please refer to Figure 2 The test piece loading device includes a flap mechanism 13, a tool table 12 and a hydraulic lifter 14. The upper surface of the tool table 12 has a slope. The tool table 12 is located at the lower end of the pressure test working cylinder 4 and the movable sealing head 6. The slope direction of the tool table 12 is perpendicular to the central axis of the pressure test working cylinder 4.

[0046] The hydraulic lifter 14 is located at the bottom of the tool bench 12. The hydraulic lifter 14 is located directly below the central axis of the pressure test cylinder 4. The transmission direction of the hydraulic lifter 14 is perpendicular to the central axis of the pressure test cylinder 4. There is a through hole between the upper surface and the lower surface of the tool bench 12. The transmission shaft of the hydraulic lifter 14 extends through the through hole to the upper surface of the tool bench 12 and is hinged to the flap mechanism 13. A servo motor is provided between the transmission shafts of the flap mechanism 13 and the hydraulic lifter 14. The servo motor is fixed on the hydraulic lifter 14. The transmission shaft of the servo motor is rotatably connected to the flap mechanism 13. The transmission shaft of the servo motor is coaxial with the transmission shaft of the hydraulic lifter 14 and the hinge shaft at the hinge of the flap mechanism 13.

[0047] In the above embodiment, the test piece loading device simultaneously carries and measures multiple test pieces through the flip mechanism 13, the tool table 12 and the hydraulic lifter 14, wherein the top of the tool table 12 with a slope is used to place multiple test pieces, and the middle of the tool table 12 is provided with a hydraulic lifter 14 and a flip mechanism 13. The flip mechanism 13 has a flipping function. When testing another test piece, the flip mechanism 13 first tilts toward the lower end of the tool table 12, and rolls the test piece it carries to the lower side of the tool table 12, and then the flip mechanism 13 flips relative to the upper end of the tool table 12, carries the test piece located at the upper end of the tool table 12 thereon, and then lifts the test piece to complete the transportation of the test piece.

[0048] Example 3

[0049] Furthermore, the bottom of the flap mechanism 13 is located on the upper surface of the tool bench 12 and has a groove for retracting the flap mechanism into the tool bench, and the bottom of the groove is parallel to the upper surface of the tool bench 12 .

[0050] In the above embodiment, in order to enable the test piece to roll onto the flip mechanism 13 when the flip mechanism 13 is flipped, a groove is provided at the bottom of the flip mechanism 13 on the tool table 12, and the side of the flip mechanism 13 located at the test piece can be retracted into the tool table 12, so that the test piece can roll onto the flip mechanism 13. The bottom of the groove is parallel to the upper surface of the tool table 12, so that the flip mechanism 13 can still rotate in the groove when entering the groove.

[0051] Example 4

[0052] For further information, please refer to Figure 1 and Figure 2 The tool bench 12 has a support frame 11 at the bottom, and the tool bench 12, the pressure test working cylinder 4, the hydraulic lifter 14, and the fixed sealing head 3 are respectively fixed on the support frame 11.

[0053] In the above embodiment, the tool bench 12, the pressure test working cylinder 4, the hydraulic lifter 14 and the fixed sealing head 3 are supported by the support frame, so that the whole device can be three-dimensional and convenient to use.

[0054] Example 5

[0055] Furthermore, a semi-cylindrical groove is provided on the surface of the flap mechanism 13 .

[0056] In the above embodiment, since the test pieces are mostly circular pieces, the groove of the flap mechanism 13 is used to stably grasp the test piece, and when the hydraulic cylinder pushes the test piece, a stable forward guide rail is provided for the test piece to facilitate the test piece to enter the bridge-type concentric water distributor automatic continuous detection device.

[0057] Example 6

[0058] For further information, please refer to Figure 1 A clamp 8 is provided between the movable sealing head 6 and the hydraulic cylinder, one end of the clamp 8 is detachably connected to the movable sealing head 6, and the other end of the clamp 8 is fixedly connected to the driving end of the hydraulic cylinder.

[0059] In the above embodiment, the holder 8 is detachably connected to the movable sealing head 6, and the holder 8 can hold movable sealing heads 6 of different types so that continuous testing can be performed when testing pieces to be tested with different pipe diameters.

[0060] Example 7

[0061] For further information, please refer to Figure 2 The flap mechanism 13 is provided with electromagnets evenly distributed on the surface of the flap mechanism 13 .

[0062] In the above embodiment, by arranging an electromagnet on the surface of the flip mechanism 13, a stable gripping force can be provided when the flip mechanism 13 loads and unloads the test piece, thereby providing external force for replacing and unloading the test piece.

[0063] Example 8

[0064] Further, such as Figure 1 As shown, a speed controller 2 is provided between the digitally controlled torque meter 1 and the measuring and adjusting driving rod 18 , and the digitally controlled torque meter 1 is transmission-connected to the measuring and adjusting driving rod 18 via the speed controller 2 .

[0065] In the above embodiment, a speed controller 2 is arranged between the CNC torque meter 1 and the measuring and adjusting driving rod 18. On the one hand, the driving force of the CNC torque meter 1 can be increased when the water nozzle requires a particularly large driving force. On the other hand, the driving force can be converted to a larger force when the driving force of the water nozzle is particularly small, thereby improving the measurement accuracy.

[0066] Example 9

[0067] For further information, please refer to Figure 1 A start limiter 5 for monitoring the top position of the test piece is arranged at the top of the test piece feeding device, and a stop limiter 7 for monitoring the end position of the movable sealing head is arranged on the side of the movable sealing head 6. The start limiter 5 and the stop limiter 7 are fixed relative to the pressure test working cylinder 4.

[0068] In the above embodiment, when monitoring the installation of the test piece on the tooling of the automatic continuous detection device of the bridge type concentric water distributor and when the tooling of the test piece is released, it is necessary to use a position detection device to monitor its position to ensure that the test piece rises to an accurate height when installed and the movable sealing head 6 will not be carried out of the automatic continuous detection device of the bridge type concentric water distributor by the hydraulic cylinder and fall when the test piece is removed.

[0069] Example 10

[0070] Furthermore, it also includes a control module, a hydraulic lifter control module, a hydraulic cylinder control module and a servo motor control module. The start limiter 5, the stop limiter 7, the CNC torque meter 1, the hydraulic lifter control module, the hydraulic cylinder control module and the servo motor control module are electrically connected to the control module respectively, the hydraulic cylinder is electrically connected to the control module through the hydraulic cylinder control module, the servo motor is electrically connected to the control module through the servo motor control module, and the hydraulic lifter 14 is electrically connected to the control module through the hydraulic lifter control module.

[0071] In the above embodiment, the control module mainly controls the start and stop of the hydraulic lifter 14, the hydraulic cylinder and the servo motor. The hydraulic lifter 14, the hydraulic cylinder and the servo motor can be started by the user. When stopping, the control module can control the hydraulic lifter 14 to stop lifting when the test piece is detected to be lifted to a predetermined position according to the start limiter 5;

[0072] When the movable sealing head 6 is retracted by the hydraulic cylinder to the monitoring position according to the stop limiter 7, the control module controls the hydraulic cylinder to stop retracting. When the hydraulic cylinder stops retracting, the control module controls the servo motor to rotate, flips the test piece over and freely rolls to the bottom of the tool table 12, and then controls the servo motor to rotate back to the original position.

[0073] The hydraulic lifter control module is an existing technology. For example, a hydraulic lifter with a brand of Shengjie and a model of DC / 12V / 24V / 48V / 72V has a hydraulic lifter control module.

[0074] The control module is an existing common technology and a well-known technology, and will not be described in detail here.

[0075] Embodiment 11

[0076] Furthermore, a sealing step for docking with the test piece is provided inside the fixed sealing head 3, and a sealing rubber ring is provided on the sealing step.

[0077] In the above embodiment, the fixed sealing head 3 and the test piece are in contact sealing. Therefore, the sealing position needs to be designed as a sealing step according to actual needs, and a sealing rubber ring is provided at the sealing platform to strengthen the sealing between the test piece and the fixed sealing head 3.

[0078] Example 12

[0079] Furthermore, the hydraulic cylinder is provided with a reverse push hydraulic joint 9 and a forward push hydraulic joint 10, and the reverse push hydraulic joint 9 and the forward push hydraulic joint 10 are oil inlets for the hydraulic oil.

[0080] In the above embodiment, the back and forth movement of the hydraulic cylinder is controlled by the reverse pushing hydraulic joint 9 and the forward pushing hydraulic joint 10, thereby controlling the hydraulic cylinder.

[0081] Example 13

[0082] An embodiment of the present invention provides an automatic continuous detection method for a bridge-type concentric water distributor, and the automatic continuous detection method for a bridge-type concentric water distributor includes:

[0083] Step 1: Place the test piece on the tool table and check whether it is complete;

[0084] Step 2: The test piece loading device receives the test piece and lifts the test piece to the test height;

[0085] Step 3: The hydraulic cylinder pushes the clamp to dock with the movable sealing head, and pushes the test piece into the pressure test working cylinder, completing the docking and sealing of the fixed sealing head, the movable sealing head and the pressure test working cylinder;

[0086] Step 4: Connect the internal pressure joint to high-pressure water to complete the internal pressure sealing test of the test piece;

[0087] Step 5: The internal pressure joint is connected to high-pressure water, stops, and releases pressure, and the external pressure joint is connected to high-pressure water to complete the external pressure sealing test;

[0088] Step 6: The high-pressure water is connected to the external pressure joint, and the pressure is released. The CNC torque meter is started, and the water nozzle opening adjustment device is driven to change the water nozzle opening of the test piece to test the normal pressure torque;

[0089] Step 7: The internal pressure joint is connected to high-pressure water to establish a pressurized environment for the test piece. The CNC torque meter is started to drive the water nozzle opening adjustment device to change the water nozzle opening of the test piece to test the pressurized torque;

[0090] Step 8: After the test is completed, the internal pressure joint is disconnected from the high-pressure water, the CNC torque meter stops, and the pressure relief is completed;

[0091] Step 9: The hydraulic cylinder retracts the clamp to remove the test piece from the pressure test cylinder to complete the test;

[0092] Step 10: After the test piece loading device lowers and removes the test piece, it lifts up the next test piece.

[0093] In the above embodiment, the test piece is placed on the tool table to check whether the test piece is intact; the test piece loading device receives the test piece and lifts the test piece to the test height; the hydraulic cylinder pushes the clamp to dock with the movable sealing head, and pushes the test piece into the pressure test working cylinder to complete the docking and sealing of the fixed sealing head, the movable sealing head and the pressure test working cylinder; the internal pressure joint is connected to high-pressure water to complete the internal pressure sealing test of the test piece; the internal pressure joint is connected to the high-pressure water and stops, and the pressure is released, and the external pressure joint is connected to the high-pressure water to complete the external pressure sealing test; the external pressure joint is connected to the high-pressure water and stops , and release the pressure, the CNC torque meter starts, drives the water nozzle opening adjustment device to change the water nozzle opening of the test piece, and tests the normal pressure torque; the internal pressure joint is connected to high-pressure water to establish a test piece with pressure environment, the CNC torque meter starts, drives the water nozzle opening adjustment device to change the water nozzle opening of the test piece, and tests the pressurized torque; after the test, the internal pressure joint is connected to the high-pressure water and the CNC torque meter stops, and the pressure relief is completed; the hydraulic cylinder retracts the clamp to withdraw the test piece from the pressure test working cylinder to complete the test; the test piece feeding device lowers and removes the test piece, and then lifts the next test piece. The above method can continuously detect the test piece, which is convenient for users to operate.

[0094] Embodiment 14

[0095] Furthermore, step 1.1 is also included between step 1 and step 2:

[0096] The test piece is connected to connecting short sections at both ends respectively, and the connecting short sections are used to increase the length of the test piece.

[0097] In the above embodiment, when testing pieces of different lengths, in order to adapt to the length of the pressure test working cylinder 4 of the bridge-type concentric water distributor automatic continuous testing device, a connecting short section is added to supplement the length of the piece of test so that its length is suitable for the length of the pressure test working cylinder 4.

[0098] It should be noted that all directional indications in this embodiment (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0099] In addition, the descriptions involving "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0100] The technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. Bridge type concentric water distributor automatic continuous detection device, characterized in that: include: A numerically controlled torque meter (1), a fixed sealing head (3), a pressure test working cylinder (4), a movable sealing head (6), a hydraulic cylinder, a test piece feeding device, an external pressure joint (16), an internal pressure joint (17) and a measuring and adjusting driving rod (18); one end of the pressure test working cylinder (4) is fixed with the fixed sealing head (3); one end of the measuring and adjusting driving rod (18) is located outside the pressure test working cylinder (4), and the other end passes through the fixed sealing head (3) and is located inside the pressure test working cylinder (4); the pressure test working cylinder (4) is provided with a numerically controlled torque meter (1) outside, and the pressure test working cylinder (4) is provided with a faucet opening adjustment device (15); the numerically controlled torque meter (1) is adjusted by the measuring and adjusting driving rod (18) through the measuring and adjusting driving rod (18). The movable rod (18) is connected to the water nozzle opening adjustment device (15) by transmission; the other end of the pressure test working cylinder (4) is provided with a movable sealing head (6) and the hydraulic cylinder; the movable sealing head (6) and the transmission end of the hydraulic cylinder are fixedly connected; the central axis of the movable sealing head (6) is coaxial with the central axis of the pressure test working cylinder (4); the transmission direction of the hydraulic cylinder is parallel to the central axis of the pressure test working cylinder (4); a lifting and lowering device for feeding the test piece to be tested is provided between the pressure test working cylinder (4) and the movable sealing head (6); an internal pressure joint (17) is provided on the fixed sealing head (3); and an external pressure joint (16) is provided on the pressure test working cylinder (4); The test piece loading device comprises a flap mechanism (13), a tool table (12) and a hydraulic lifter (14); the upper surface of the tool table (12) has a slope; the tool table (12) is located at the lower end of the pressure test working cylinder (4) and the movable sealing head (6); the slope direction of the tool table (12) is perpendicular to the central axis of the pressure test working cylinder (4); the hydraulic lifter (14) is located at the bottom of the tool table (12); the hydraulic lifter (14) is located directly below the central axis of the pressure test working cylinder (4); the transmission direction of the hydraulic lifter (14) is perpendicular to the central axis of the pressure test working cylinder (4). The spindle is vertical, and a through hole is provided between the upper surface and the lower surface of the tool table (12). The transmission shaft of the hydraulic lifter (14) passes through the through hole and extends to the upper surface of the tool table (12) and is hinged to the flap mechanism (13). A servo motor is provided between the flap mechanism (13) and the transmission shaft of the hydraulic lifter (14). The servo motor is fixed on the hydraulic lifter (14). The transmission shaft of the servo motor is rotationally connected to the flap mechanism (13). The transmission shaft of the servo motor is coaxial with the transmission shaft of the hydraulic lifter (14) and the hinge shaft at the hinge of the flap mechanism (13). A speed controller (2) is provided between the digitally controlled torque meter (1) and the measuring and adjusting driving rod (18), and the digitally controlled torque meter (1) is transmission-connected to the measuring and adjusting driving rod (18) via the speed controller (2).

2. The automatic continuous detection device for a bridge-type concentric water distributor as claimed in claim 1, characterized in that: The bottom of the flap mechanism (13) is located on the upper surface of the tool bench (12) and has a groove for retracting the flap mechanism into the tool bench, and the bottom of the groove is parallel to the upper surface of the tool bench (12).

3. The automatic continuous detection device for a bridge-type concentric water distributor as claimed in claim 1, characterized in that: The bottom of the tool bench (12) is provided with a support frame (11), and the tool bench (12), the pressure testing working cylinder (4), the hydraulic lifter (14), and the fixed sealing head (3) are respectively fixed on the support frame (11).

4. The automatic continuous detection device for a bridge-type concentric water distributor as claimed in claim 1, characterized in that: The surface of the flap mechanism (13) is provided with a semi-cylindrical groove, and the flap mechanism (13) is provided with electromagnets evenly distributed on the surface of the flap mechanism (13); A clamp (8) is provided between the movable sealing head (6) and the hydraulic cylinder. One end of the clamp (8) is detachably connected to the movable sealing head (6), and the other end of the clamp (8) is fixedly connected to the transmission end of the hydraulic cylinder.

5. The automatic continuous detection device for a bridge-type concentric water distributor as claimed in claim 1, characterized in that: A start limiter (5) for monitoring the top position of the test piece is arranged at the top of the test piece feeding device, and a stop limiter (7) for monitoring the end position of the movable sealing head is arranged on the side of the movable sealing head (6). The start limiter (5) and the stop limiter (7) are fixed relative to the pressure test working cylinder (4).

6. The automatic continuous detection device for a bridge-type concentric water distributor as claimed in claim 1, characterized in that: It also includes a control module, a hydraulic lifter control module, a hydraulic cylinder control module and a servo motor control module. The start limiter (5), the stop limiter (7), the CNC torque meter (1), the hydraulic lifter control module, the hydraulic cylinder control module and the servo motor control module are electrically connected to the control module respectively. The hydraulic cylinder is electrically connected to the control module through the hydraulic cylinder control module, the servo motor is electrically connected to the control module through the servo motor control module, and the hydraulic lifter (14) is electrically connected to the control module through the hydraulic lifter control module.

7. The automatic continuous detection device for a bridge-type concentric water distributor as claimed in claim 1, characterized in that: The fixed sealing head (3) is provided with a sealing step inside for docking with the test piece, and a sealing rubber ring is provided on the sealing step.

Images