Pulse test device and method for nuclear power metal hose

Abstract

The invention belongs to the technical field of nuclear power station safety assembly detection, and particularly relates to a pulse test device and method for a nuclear power metal hose, and the device comprises a pedestal, a fixed track, a second track, a support frame, and a clamp. Fixed rails are symmetrically mounted on the two sides of the base, second rails capable of moving along the fixed rails are symmetrically mounted on the fixed rails, supporting frames capable of moving along the second rails are mounted on the second rails, clamps are arranged at the tops of the supporting frames, and the clamps are connected with a nuclear power metal hose to be tested. According to the device, the rapid adjusting mechanism is designed, rapid clamping and positioning of hoses of different specifications are facilitated, the hoses are installed on the adjustable dynamic supporting frame, the supporting frame can freely move in multiple axial directions, it is ensured that the minimum dynamic bending radius mm of the hoses is kept in the testing process, meanwhile, the requirement for the minimum static bending radius mm is met, and use is flexible.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear power plant safety component detection, and in particular relates to a pulse test device and method for a nuclear power metal hose. Background Art

[0002] As a key fluid transmission medium in nuclear power plants, metal hoses must withstand extreme pressure fluctuations, temperature changes and mechanical vibrations during long-term operation. Therefore, it is particularly important to conduct strict pulse durability tests on metal hoses.

[0003] However, the conventional testing device has poor fixing effect when dynamically supporting and fixing the metal hose. Therefore, it is urgent to propose a pulse test device and method for nuclear power metal hose to solve the above technical problems existing in the conventional testing device. Summary of the invention

[0004] The object of the present invention is to provide a pulse test device and method for a nuclear power metal hose, which is used to test the ability of the metal hose to withstand hydraulic pulses and withstand vibrations caused by pulse changes.

[0005] The technical solution to achieve the purpose of the present invention is:

[0006] A pulse test device for a nuclear power metal hose, the device comprising: a base, a fixed rail, a second rail, a support frame, and a clamp; the fixed rails are symmetrically installed on both sides of the base, the second rails that can move along the fixed rails are symmetrically installed on the fixed rails, the support frame that can move along the second rails is installed on the second rail, and the clamp is arranged on the top of the support frame, and the clamp is connected to the nuclear power metal hose to be tested.

[0007] The clamp includes a fixing ring, a limiting bolt, and a detachable joint. The fixing ring is fixedly connected to the top of the support frame. A threaded hole and a first positioning hole are provided inside the fixing ring. The limiting bolt is threadedly connected inside the threaded hole. A second positioning hole is provided on the top of the detachable joint. A positioning block is fixedly connected to the bottom of the detachable joint. The positioning block is adapted to the first positioning hole, and the bottom of the limiting bolt abuts against the second positioning hole.

[0008] The base is fixedly connected with a first driver, and an output end of the first driver is connected to the second track.

[0009] The second track is also fixedly connected with a second driver, and an output end of the second driver is connected to the support frame.

[0010] The first driver and the second driver are hydraulic cylinders or electric telescopic rods.

[0011] The detachable joint is used to be connected to the nuclear power metal hose to be tested. The detachable joint has multiple specifications, corresponding to nuclear power metal hoses of different specifications.

[0012] A pulse test method for a nuclear power metal hose, the method comprising:

[0013] Step S1, select a detachable joint according to the nuclear power metal hose to be tested, install the detachable joint in the fixing ring, and abut the positioning block at the bottom of the detachable joint in the first positioning hole; after connecting the nuclear power metal hose to be tested with the detachable joint, thread the limit bolt in the threaded hole, and abut the bottom of the limit bolt in the second positioning hole, fix the detachable joint, and thus realize the fixation of the nuclear power metal hose to be tested;

[0014] Step S2, adjusting the position of the second track on the fixed track, and adjusting the position of the support frame on the second track, so that the nuclear power metal hose to be tested can maintain the bending radius requirement during the test;

[0015] Step S3, performing a pulse durability test on the nuclear power metal hose to be tested.

[0016] The bending radius of the nuclear power metal hose to be tested in step S2 during the test is: the minimum dynamic bending radius is 215 mm, and the minimum static bending radius is 95 mm.

[0017] The step S3 comprises:

[0018] Step S301, setting test parameters on the pulse tester; the test parameters include pulse frequency, test times, pressure and temperature;

[0019] Step S302, start the test, perform periodic tests under different temperature and pressure conditions, and collect and record data on the performance parameters of the nuclear power metal hose during the test, including the number of tests, the number of pulses, pressure changes, and temperature changes;

[0020] Step S303: Analyze and process the recorded data to evaluate the durability, reliability and safety of the nuclear power metal hose.

[0021] In step S3, during the test, a fixed number of pauses are set to observe and record the pressure, vibration curve, deformation, etc. of the nuclear power metal hose.

[0022] The beneficial technical effects of the present invention are:

[0023] The fixing device of the present invention is designed with a quick adjustment mechanism, which is convenient for quick clamping and positioning of hoses of different specifications. The hose is installed on an adjustable dynamic support frame, and the support frame can move freely along multiple axes to ensure that the hose maintains a minimum dynamic bending radius of 215mm during the test, while meeting the requirement of a minimum static bending radius of 95mm, and is flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a pulse test device for a nuclear power metal hose provided by the present invention;

[0025] Figure 2 This is a schematic structural diagram of a clamp in a pulse test device for a nuclear power metal hose provided by the present invention;

[0026] Figure 3 The present invention provides a schematic cross-sectional structural diagram of a clamp in a pulse test device for a nuclear power metal hose.

[0027] In the figure: 1, base; 2, fixed track; 3, second track; 4, support frame; 5, clamp; 6, first driver; 7, second driver; 501, fixing ring; 502, limit bolt; 503, detachable joint; 504, threaded hole; 505, first positioning hole; 506, second positioning hole; 507, positioning block. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figure 1-3 As shown, the present invention provides a pulse test device for a nuclear power metal hose, comprising: a base 1, a fixed track 2, a second track 3, a support frame 4, and a clamp 5.

[0030] Fixed rails 2 are symmetrically installed on both sides of the base 1, and second rails 3 that can move along the fixed rails 2 are symmetrically installed on the fixed rails 2. A support frame 4 that can move along the second rails 3 is installed on the second rails 3. A clamp 5 is arranged on the top of the support frame 4, and the clamp 5 is connected to the nuclear power metal hose to be tested.

[0031] The clamp 5 includes a fixing ring 501, a limiting bolt 502, and a detachable joint 503. The fixing ring 501 is fixedly connected to the top of the support frame 4. A threaded hole 504 and a first positioning hole 506 are provided inside the fixing ring 501. The limiting bolt 502 is threadedly connected inside the threaded hole 504. A second positioning hole 505 is provided on the top of the detachable joint 503. A positioning block 507 is fixedly connected to the bottom of the detachable joint 503. The positioning block 507 is adapted to the first positioning hole 506, and the bottom of the limiting bolt 502 abuts against the second positioning hole 505.

[0032] like Figure 1 As shown, a first driver 6 is fixedly connected to the base 1, and an output end of the first driver 6 is connected to the second track 3; a second driver 7 is also fixedly connected to the second track 3, and an output end of the second driver 7 is connected to the support frame 4. The first driver 6 and the second driver 7 are hydraulic cylinders or electric telescopic rods.

[0033] like Figure 2-3 As shown, the detachable joint 503 is used to connect with the nuclear power metal hose to be tested. The detachable joint 503 has multiple specifications, corresponding to nuclear power metal hoses of different specifications, which is convenient for the rapid clamping and positioning of hoses of different specifications. The hose is installed on the adjustable dynamic support frame 4, and the support frame 4 can move freely along multiple axes to ensure that the hose maintains a minimum dynamic bending radius of 215mm during the test, while meeting the minimum static bending radius requirement of 95mm, and is flexible to use.

[0034] A method for performing an impulse test of a nuclear power metal hose using an impulse test device for a nuclear power metal hose provided by the present invention specifically comprises the following steps:

[0035] Step S1: Fix the nuclear power metal hose to be tested on the fixture 5

[0036] Select a detachable joint 503 according to the nuclear power metal hose to be tested, install the detachable joint 503 in the fixing ring 501, and abut the positioning block 507 at the bottom of the detachable joint 503 in the first positioning hole 506; after connecting the nuclear power metal hose to be tested with the detachable joint 503, thread the limiting bolt 502 in the threaded hole 504, and abut the bottom of the limiting bolt 502 in the second positioning hole 505, fix the detachable joint 503, and then realize the fixation of the nuclear power metal hose to be tested;

[0037] Step S2: Adjust the position of the support frame 4 so that the nuclear power metal hose to be tested can maintain the bending radius requirement during the test.

[0038] According to the situation of the nuclear power metal hose, the position of the second track 3 on the fixed track 2 is adjusted, and the position of the support frame 4 on the second track 3 is adjusted, so that the nuclear power metal hose to be tested can maintain the bending radius requirements during the test;

[0039] In this embodiment, the bending radius of the nuclear power metal hose to be tested during the test is: the minimum dynamic bending radius is 215 mm, and the minimum static bending radius is 95 mm.

[0040] Step S3, performing a pulse durability test on the nuclear power metal hose to be tested.

[0041] In this embodiment, the specific process of performing the pulse durability test of the nuclear power metal hose to be tested in step S3 is:

[0042] Step S301, setting test parameters on the pulse tester; the test parameters include pulse frequency, test times, pressure and temperature;

[0043] Step S302, start the test, perform periodic tests under different temperature and pressure conditions, and collect and record data on the performance parameters of the nuclear power metal hose during the test, including the number of tests, the number of pulses, pressure changes, and temperature changes;

[0044] Step S303: Analyze and process the recorded data to evaluate the durability, reliability and safety of the nuclear power metal hose.

[0045] In this embodiment, during the test, a fixed number of pauses are set to observe and record the pressure, vibration curve, deformation, etc. of the nuclear power metal hose.

[0046] The present invention is described in detail above with reference to the accompanying drawings and embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. The contents not described in detail in the present invention can adopt the existing technology.

Claims

1. A pulse test device for a nuclear power metal hose, characterized in that: The device comprises: a base (1), a fixed rail (2), a second rail (3), a support frame (4), and a clamp (5); the fixed rails (2) are symmetrically mounted on both sides of the base (1); the second rails (3) movable along the fixed rails (2) are symmetrically mounted on the fixed rails (2); the support frame (4) movable along the second rail (3) is mounted on the second rail (3); the top of the support frame (4) is provided with a clamp (5); and the clamp (5) is connected to a nuclear power metal hose to be tested.

2. The impulse test device for a nuclear power metal hose according to claim 1, characterized in that: The clamp (5) comprises a fixing ring (501), a limiting bolt (502), and a detachable joint (503); the fixing ring (501) is fixedly connected to the top of the support frame (4); a threaded hole (504) and a first positioning hole (506) are provided inside the fixing ring (501); the limiting bolt (502) is threadedly connected inside the threaded hole (504); a second positioning hole (505) is provided on the top of the detachable joint (503); a positioning block (507) is fixedly connected to the bottom of the detachable joint (503); the positioning block (507) is adapted to the first positioning hole (506); and the bottom of the limiting bolt (502) abuts against the second positioning hole (505).

3. The impulse test device for a nuclear power metal hose according to claim 1, characterized in that: A first driver (6) is fixedly connected to the base (1), and an output end of the first driver (6) is connected to the second track (3).

4. The impulse test device for a nuclear power metal hose according to claim 1, characterized in that: A second driver (7) is also fixedly connected to the second track (3), and an output end of the second driver (7) is connected to the support frame (4).

5. The impulse test device for a nuclear power metal hose according to any one of claims 4 or 5, characterized in that: The first driver (6) and the second driver (7) are hydraulic cylinders or electric telescopic rods.

6. The impulse test device for a nuclear power metal hose according to claim 2, characterized in that: The detachable joint (503) is used to connect to the nuclear power metal hose to be tested. The detachable joint (503) has multiple specifications, corresponding to nuclear power metal hoses of different specifications.

7. A pulse test method for a nuclear power metal hose, using a pulse test device for a nuclear power metal hose according to claim 2, characterized in that: The method comprises: Step S1, selecting a detachable joint (503) according to the nuclear power metal hose to be tested, installing the detachable joint (503) in the fixing ring (501), and abutting the positioning block (507) at the bottom of the detachable joint (503) in the first positioning hole (506); after connecting the nuclear power metal hose to be tested with the detachable joint (503), threading the limiting bolt (502) in the threaded hole (504), and abutting the bottom of the limiting bolt (502) in the second positioning hole (505), fixing the detachable joint (503), thereby achieving the fixation of the nuclear power metal hose to be tested; Step S2, adjusting the position of the second track (3) on the fixed track (2), and adjusting the position of the support frame (4) on the second track (3), so that the nuclear power metal hose to be tested can maintain the bending radius requirement during the test; Step S3, performing a pulse durability test on the nuclear power metal hose to be tested.

8. The impulse test method for a nuclear power metal hose according to claim 7, characterized in that: The bending radius of the nuclear power metal hose to be tested in step S2 during the test is: the minimum dynamic bending radius is 215 mm, and the minimum static bending radius is 95 mm.

9. The impulse test method for a nuclear power metal hose according to claim 7, characterized in that: The step S3 comprises: Step S301, setting test parameters on the pulse tester; the test parameters include pulse frequency, test times, pressure and temperature; Step S302, start the test, perform periodic tests under different temperature and pressure conditions, and collect and record data on the performance parameters of the nuclear power metal hose during the test, including the number of tests, the number of pulses, pressure changes, and temperature changes; Step S303: Analyze and process the recorded data to evaluate the durability, reliability and safety of the nuclear power metal hose.

10. The impulse test method for a nuclear power metal hose according to claim 9, characterized in that: In step S3, during the test, a fixed number of pauses are set to observe and record the pressure, vibration curve, deformation, etc. of the nuclear power metal hose.

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