Pulse test device and method for nuclear power metal hose

Abstract

The application belongs to the technical field of nuclear power station safety component detection, and particularly relates to a pulse test device and method for a nuclear power metal hose, which comprises a base, a fixed track, a second track, a support frame and a clamp. The fixed track is symmetrically installed on both sides of the base, the second track is symmetrically installed on the fixed track and can move along the fixed track, the support frame is installed on the second track and can move along the second track, the top of the support frame is provided with the clamp, and the clamp is connected with the nuclear power metal hose to be detected. The device is designed with a quick adjusting mechanism, so that different specifications of the hose can be quickly clamped and positioned, the hose is installed on an adjustable dynamic support frame, the support frame can freely move along multiple axes, the minimum dynamic bending radius mm of the hose can be ensured during the test, the requirement of the minimum static bending radius mm can be met, and the device is flexible to use.

Description

Technical Field

[0001] This invention belongs to the field of nuclear power plant safety component testing technology, specifically relating to a pulse testing device and method for nuclear power plant metal hoses. Background Technology

[0002] Metal hoses in nuclear power plants serve as critical fluid transport media, and must withstand extreme pressure fluctuations, temperature changes, and mechanical vibrations during long-term operation. Therefore, rigorous pulse durability testing of metal hoses is particularly important.

[0003] However, traditional testing devices are ineffective at dynamically supporting and fixing metal hoses. Therefore, there is an urgent need to develop a pulse testing device and method for nuclear power plant metal hoses to solve the aforementioned technical problems of traditional testing devices. Summary of the Invention

[0004] The purpose of this invention is to provide a pulse testing device and method for nuclear power plant metal hoses. This device is used to test the ability of metal hoses to withstand hydraulic pulses and vibrations caused by pulse changes.

[0005] Technical solution to achieve the purpose of this invention:

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

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

[0008] A first driver is fixedly connected to the base, and the output end of the first driver is connected to the second track.

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

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

[0011] The detachable connector is used to connect to the nuclear power metal hose to be tested. The detachable connector is available in various specifications, each corresponding to a different specification of nuclear power metal hose.

[0012] A pulse testing method for nuclear power plant metal hoses, the method comprising:

[0013] Step S1: Select a detachable connector according to the nuclear power metal hose to be tested, install the detachable connector inside the fixing ring, and abut the positioning block at the bottom of the detachable connector into the first positioning hole; after connecting the nuclear power metal hose to be tested to the detachable connector, thread the limiting bolt into the threaded hole, and abut the bottom of the limiting bolt into the second positioning hole to fix the detachable connector, thereby achieving the fixation of the nuclear power metal hose to be tested;

[0014] Step S2: Adjust the position of the second track on the fixed track, and adjust the position of the support frame on the second track so that the nuclear power metal hose under test can maintain the bending radius requirement during the test.

[0015] Step S3: Perform a pulse durability test on the nuclear power plant metal hose to be tested.

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

[0017] Step S3 includes:

[0018] Step S301: Set the test parameters on the pulse testing machine; the test parameters include pulse frequency, number of tests, pressure, and temperature;

[0019] Step S302: Start the test and conduct periodic tests under different temperature and pressure conditions. During the test, collect and record the performance parameters of the nuclear power metal hose, 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 plant metal hose.

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

[0022] The beneficial technical effects of this invention are as follows:

[0023] The fixing device of the present invention is designed with a quick adjustment mechanism, which facilitates the quick clamping and positioning of hoses of different specifications. The hose is installed on an adjustable dynamic support frame, which 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, making it flexible to use. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a pulse testing device for a nuclear power plant metal hose provided by the present invention;

[0025] Figure 2 A schematic diagram of the fixture in a pulse testing device for a nuclear power plant metal hose provided by the present invention;

[0026] Figure 3 This is a cross-sectional view of the clamp in a pulse testing device for a nuclear power plant metal hose provided by the present invention.

[0027] In the diagram: 1. Base; 2. Fixed track; 3. Second track; 4. Support frame; 5. Clamp; 6. First driver; 7. Second driver; 501. Fixing ring; 502. Limiting bolt; 503. Detachable connector; 504. Threaded hole; 505. First positioning hole; 506. Second positioning hole; 507. Positioning block. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

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

[0030] The base 1 has fixed rails 2 symmetrically installed on both sides. The fixed rails 2 have second rails 3 symmetrically installed on the fixed rails 2, which can move along the fixed rails 2. The second rails 3 have support frames 4 that can move along the second rails 3. The top of the support frame 4 is equipped with a clamp 5, which is connected to the nuclear power metal hose to be tested.

[0031] The clamp 5 includes a retaining ring 501, a limiting bolt 502, and a detachable connector 503. The retaining ring 501 is fixedly connected to the top of the support frame 4. The retaining ring 501 has a threaded hole 504 and a first positioning hole 506 inside. The limiting bolt 502 is threadedly connected to the inside of the threaded hole 504. The top of the detachable connector 503 has a second positioning hole 505. The bottom of the detachable connector 503 is fixedly connected to a positioning block 507, which is adapted to the first positioning hole 506. 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 the output end of the first driver 6 is connected to the second rail 3; a second driver 7 is also fixedly connected to the second rail 3, and the 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 connector 503 is used to connect to the nuclear power metal hose under test. The detachable connector 503 comes in various sizes to correspond to different sizes of nuclear power metal hoses, facilitating quick clamping and positioning of hoses of different sizes. The hose is mounted on the adjustable dynamic support frame 4, which can move freely along multiple axes to ensure that the hose maintains a minimum dynamic bending radius of 215mm during testing, while also meeting the requirement of a minimum static bending radius of 95mm, providing flexibility in use.

[0034] The method for conducting pulse tests on nuclear power plant metal hoses using the pulse testing device provided by this invention specifically includes the following steps:

[0035] Step S1: Fix the nuclear power plant metal hose to be tested onto the clamp 5.

[0036] Select a detachable connector 503 based on the nuclear power metal hose to be tested, install the detachable connector 503 inside the fixing ring 501, and abut the positioning block 507 at the bottom of the detachable connector 503 into the first positioning hole 506; after connecting the nuclear power metal hose to be tested to the detachable connector 503, thread the limiting bolt 502 into the threaded hole 504, and abut the bottom of the limiting bolt 502 into the second positioning hole 505 to fix the detachable connector 503, thereby achieving 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 plant metal hose under test can maintain the bending radius requirement during the test.

[0038] Depending on the condition of the nuclear power metal hose, adjust the position of the second track 3 on the fixed track 2, and adjust the position of the support frame 4 on the second track 3 so that the nuclear power metal hose under test can maintain the bending radius requirement during the test.

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

[0040] Step S3: Perform a pulse durability test on the nuclear power plant metal hose to be tested.

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

[0042] Step S301: Set the test parameters on the pulse testing machine; the test parameters include pulse frequency, number of tests, pressure, and temperature;

[0043] Step S302: Start the test and conduct periodic tests under different temperature and pressure conditions. During the test, collect and record the performance parameters of the nuclear power metal hose, 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 plant metal hose.

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

[0046] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. All contents not described in detail in the present invention can be derived from existing technologies.

Claims

1. A pulse testing device for a nuclear power plant metal hose, characterized in that, The device includes: a base (1), a fixed rail (2), a second rail (3), a support frame (4), and a clamp (5); the base (1) is symmetrically equipped with fixed rails (2) on both sides, and a second rail (3) that can move along the fixed rail (2) is symmetrically installed on the fixed rail (2), and a support frame (4) that can move along the second rail (3) is installed on the second rail (3), and a clamp (5) is provided on the top of the support frame (4), and the clamp (5) is connected to the nuclear power metal hose to be tested; the clamp (5) includes a fixing ring (501), a limiting bolt (502), and a detachable connector. The head (503) and the fixing ring (501) are fixedly connected to the top of the support frame (4). The fixing ring (501) has a threaded hole (504) and a first positioning hole (506) inside. The limiting bolt (502) is threadedly connected to the inside of the threaded hole (504). The top of the detachable connector (503) has a second positioning hole (505). The bottom of the detachable connector (503) is fixedly connected to a positioning block (507). The positioning block (507) is adapted to the first positioning hole (506). The bottom of the limiting bolt (502) abuts against the second positioning hole (505).

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

3. The pulse testing device for a nuclear power plant metal hose according to claim 2, characterized in that, The first actuator (6) is a hydraulic cylinder or an electric telescopic rod.

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

5. The pulse testing device for a nuclear power plant metal hose according to claim 4, characterized in that, The second actuator (7) is a hydraulic cylinder or an electric telescopic rod.

6. The pulse testing device for a nuclear power plant metal hose according to claim 1, characterized in that, The detachable connector (503) is used to connect to the nuclear power metal hose to be tested. The detachable connector (503) has various specifications, each corresponding to a different specification of nuclear power metal hose.

7. A pulse testing method for nuclear power plant metal hoses, employing the pulse testing device for nuclear power plant metal hoses according to claim 1, characterized in that, The method includes: Step S1: Select a detachable connector (503) according to the nuclear power metal hose to be tested, install the detachable connector (503) in the fixing ring (501), and abut the positioning block (507) at the bottom of the detachable connector (503) in the first positioning hole (506); after connecting the nuclear power metal hose to be tested to the detachable connector (503), thread the limiting bolt (502) into the threaded hole (504), and abut the bottom of the limiting bolt (502) in the second positioning hole (505) to fix the detachable connector (503), thereby realizing the fixation of the nuclear power metal hose to be tested; Step S2: Adjust the position of the second track (3) on the fixed track (2), and adjust 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: Perform a pulse durability test on the nuclear power plant metal hose to be tested.

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

9. The pulse testing method for a nuclear power plant metal hose according to claim 7, characterized in that, Step S3 includes: Step S301: Set the test parameters on the pulse testing machine; the test parameters include pulse frequency, number of tests, pressure, and temperature; Step S302: Start the test and conduct periodic tests under different temperature and pressure conditions. During the test, collect and record the performance parameters of the nuclear power metal hose, 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 plant metal hose.

10. The pulse testing method for a nuclear power plant 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 curves, and deformation of the nuclear power plant metal hose.

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