Sealing sleeve sealing test system and test method for integrated heat supply reactor

Abstract

The invention provides a sealing sleeve sealing test system and test method for an integrated heat supply reactor, the test system comprises a containment simulation piece and a pressure vessel simulation piece, and a sealing sleeve test piece is respectively connected with the containment simulation piece and the pressure vessel simulation piece; the top of the sealing sleeve test piece and the containment simulation piece are sealed through at least one O-shaped ring, and the bottom of the sealing sleeve test piece and the pressure vessel simulation piece are sealed through at least one inflatable sealing ring; wherein the top of the containment simulation piece is provided with a pressure control system, and the refueling water pressure of the containment is simulated through a pressure adjusting assembly; and a compressed air system is also arranged on one side of the pressure vessel simulation piece, is connected with the inflatable sealing ring and provides sealing pressure for the inflatable sealing ring. The sealing sleeve sealing test system for the integrated heat supply reactor can meet the test of different sealing forms, and is high in cost-effectiveness ratio and high in operation flexibility.

Description

Technical Field

[0001] The invention relates to the technical field of sealing sleeve sealing test, and in particular to a sealing sleeve sealing test system and a test method for an integrated heating pile. Background Art

[0002] The new refueling scheme for small pressurized water reactors is full core refueling, which uses a refueling sealing sleeve as a shielding device for the refueling water.

[0003] When the reactor is shut down for refueling, the inflatable sealing assembly at the bottom of the refueling sealing sleeve and the O-ring at the connecting flange can prevent the refueling water from leaking into the space between the containment and the reactor pressure vessel (hereinafter referred to as the pressure vessel), prevent the refueling water from soaking and damaging the containment penetration parts, and also prevent the refueling water from contaminating the outer wall of the pressure vessel cylinder, avoiding corrosion of the pressure vessel.

[0004] The traditional method for testing the sealing properties of O-rings and inflatable sealing components is rather complicated. Most of them have different testing mechanisms for separate testing. The testing process is complicated and the test results are very different from the actual operating scenarios of the O-rings and inflatable sealing components and have poor accuracy.

[0005] Based on this, the inventor of the present application proposes a sealing sleeve sealing test system and a testing method for an integrated heating pile, in order to solve the above technical problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art that the sealing performance detection of O-rings and inflatable sealing components is troublesome and has poor precision, and to provide a sealing sleeve sealing test system and test method for an integrated heating pile.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] The present invention provides a sealing sleeve sealing test system for an integrated heating reactor, which is characterized in that it includes:

[0009] A containment shell simulation part and a pressure vessel simulation part, and a sealing sleeve test part are connected to the containment shell simulation part and the pressure vessel simulation part respectively;

[0010] The top of the sealing sleeve test piece is sealed with the containment simulation piece by at least one O-ring, and the bottom of the sealing sleeve test piece is sealed with the pressure vessel simulation piece by at least one inflatable sealing ring; wherein,

[0011] A pressure control system is provided on the top of the containment simulation component, which simulates the water pressure of the containment refueling through a pressure regulating component; a compressed air system is also provided on one side of the pressure vessel simulation component, and the compressed air system is connected to the inflatable sealing ring to provide sealing pressure for the inflatable sealing ring.

[0012] According to one embodiment of the present invention, the pressurization control system includes an air intake path, on which a first regulating valve, a first control valve and a first pressure relief valve are provided. One end of the air intake path extends to the inner side of the top of the containment simulation component to adjust the internal pressure value of the containment simulation component.

[0013] According to one embodiment of the present invention, the number of the O-rings is two;

[0014] The pressure control system further comprises a leakage detection flow path, one end of which extends between the two O-rings, and a first leakage detection valve is disposed on the leakage detection flow path.

[0015] According to one embodiment of the present invention, the space between the containment simulation piece and the sealing sleeve is also filled with test water, and the top height of the test water is at least higher than the O-ring sealing position between the top of the sealing sleeve test piece and the containment simulation piece.

[0016] According to one embodiment of the present invention, the number of the inflation sealing rings is at least two, and at least two of the inflation sealing rings are spaced apart along the axial direction of the pressure vessel simulation component.

[0017] According to one embodiment of the present invention, the compressed air system comprises a main flow path and at least two branch flows connected to the main flow path;

[0018] Each of the branches corresponds to one of the inflatable sealing rings.

[0019] According to one embodiment of the present invention, a second regulating valve and a second pressure relief valve are provided on the main flow path;

[0020] A second control valve and a second leakage detection valve are provided on each of the branches.

[0021] According to one embodiment of the present invention, each branch line is also provided with a pressure gauge.

[0022] According to one embodiment of the present invention, the containment simulation component, the pressure vessel simulation component and the sealing sleeve test component are coaxially arranged.

[0023] According to an embodiment of the present invention, the pressure control system is independently supplied with air; or, the pressure control system is connected to the compressed air system, and the compressed air system supplies air to the pressure control system.

[0024] The present invention also provides a sealing sleeve sealing test method for an integrated heating reactor, using the sealing sleeve sealing test system for an integrated heating reactor as described above, the test method comprises:

[0025] The pressure control system is used to pressurize the space between the containment simulation part and the pressure vessel simulation part to simulate the water pressure of the containment refueling;

[0026] Check the leakage of the O-ring and the inflatable sealing ring, and gradually reduce the inflation pressure of the pressure control system according to the process design pressure until the inflatable sealing ring leaks, so as to obtain the minimum sealing pressure of the inflatable sealing ring;

[0027] The pressure of the pressure control system and the tightening torque of the connecting bolts are adjusted according to the process design pressure to obtain the minimum tightening torque of the connecting bolts required to ensure the sealing of the O-ring under different test pressures.

[0028] The positive and progressive effects of the present invention are:

[0029] The present invention is used for a sealing sleeve sealing test system of an integrated heating reactor. A containment simulation part and a pressure vessel simulation part are designed so that the sealing detection of the sealing sleeve test part is in a relatively real environment. At the same time, the pressurization control system can simulate the water pressure of the containment refueling state, and the compressed air system can adjust the inflation pressure of the inflatable sealing ring. The cooperation of the two can obtain the minimum pressure required at the inflatable sealing ring and the minimum tightening torque required for the O-ring seal. The same test system can meet the tests of different sealing forms, with high cost-effectiveness and strong operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0031] Figure 1 It is a principle diagram of the sealing sleeve sealing test system for the integrated heating reactor of the present invention;

[0032] Figure 2 It is an enlarged schematic diagram of the cooperation between the inflatable sealing ring and the compressed air system;

[0033] Figure 3 It is an enlarged schematic diagram of the O-ring arrangement;

[0034] Figure 4 The present invention is a flow chart of the sealing sleeve sealing test method for an integrated heating pile.

[0035] 1. Containment simulation parts; 11. Matching flange;

[0036] 2. Pressure vessel simulation parts;

[0037] 3. Sealing sleeve test piece; 31. Mounting flange;

[0038] 4. O-ring;

[0039] 5. Inflatable sealing ring;

[0040] 6. Pressure control system; 61. Intake air flow path; 62. First regulating valve; 63. First control valve; 64. First pressure relief valve; 65. Leakage detection flow path; 66. First leakage detection valve;

[0041] 7. Compressed air system; 71. Main flow path; 711. Second regulating valve; 712. Second pressure relief valve; 72. Branch path; 721. Second control valve; 722. Second leakage detection valve; 723. Pressure gauge;

[0042] 8. Connecting bolts. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description herein. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0045] Please refer to Figures 1 to 3 The present invention proposes a sealing sleeve sealing test system for an integrated heating reactor, comprising: a containment simulation part 1 and a pressure vessel simulation part 2, and a sealing sleeve test part 3 is connected to the containment simulation part 1 and the pressure vessel simulation part 2 respectively.

[0046] Most of the traditional sealing sleeve tests are relatively simple, such as testing the local sealing performance of the sealing sleeve provided with the O-ring 4 and the inflatable sealing ring 5, and the testing accuracy is not high. Compared with the traditional testing method, the sealing sleeve test piece 3 of the present invention is equipped with the O-ring 4 and the inflatable sealing ring 5, and the sealing test environment in which it is located is closer to the real environment, which is conducive to improving the sealing test accuracy of the sealing sleeve test piece 3.

[0047] Specifically, the top of the sealing sleeve test piece 3 and the containment simulation piece 1 are sealed by at least one O-ring 4, and the sealing of the O-ring 4 is achieved by tightening the connecting bolts 8. The connecting bolts 8 are used to connect the mounting flange 31 at the top of the sealing sleeve test piece 3 and the matching flange 11 of the containment simulation piece 1.

[0048] The bottom of the sealing sleeve test piece 3 and the pressure vessel simulation piece 2 are sealed by at least one inflatable sealing ring 5; wherein, a pressurization control system 6 is provided on the top of the containment simulation piece 1, and the water pressure of the containment refueling is simulated by a pressure regulating component; a compressed air system 7 is also provided on one side of the pressure vessel simulation piece 2, and the compressed air system 7 is connected to the inflatable sealing ring 5 to provide sealing pressure for the inflatable sealing ring 5 to ensure the sealing performance.

[0049] Please refer to Figure 1 and Figure 2 The pressure vessel simulation part 2 is arranged on the inner side of the containment shell simulation part 1, and the bottom of the sealing sleeve test part 3 is sleeved on the outer side of the pressure vessel simulation part 2 and is sealed by an inflatable sealing ring 5; the mounting flange 31 at the top of the sealing sleeve test part 3 is sealed with the matching flange 11 of the containment shell simulation part 1 through an O-ring 4.

[0050] Specifically, a matching flange 11 is provided on the top of the containment simulation part 1, a mounting flange 31 which is sealed and matched with the matching flange 11 is provided on the top of the sealing sleeve test part 3, an O-ring 4 is provided between the matching flange 11 and the mounting flange 31, and the sealing of the O-ring 4 is achieved by tightening the connecting bolts 8 between the matching flange 11 and the mounting flange 31. The provision of the O-ring 4 and the inflatable sealing ring 5 can achieve the sealed installation of the sealing sleeve test part 3 with the containment simulation part 1 and the pressure vessel simulation part 2.

[0051] Specifically, a pressure control system 6 is provided on the top of the containment simulation member 1 for pressurizing the space above the liquid when water is filled between the sealing sleeve and the containment simulation member 1 to simulate the water pressure in the containment refueling state.

[0052] As for the compressed air system 7 , the compressed air system 7 can adjust the inflation pressure of the inflatable sealing ring 5 , so as to obtain the minimum pressure required by the inflatable sealing ring 5 , and provide data reference for the design of the inflatable sealing ring 5 .

[0053] It can be seen that the pressure control system 6 is independently supplied with air, or the pressure control system 6 is connected to the compressed air system 7, and the compressed air system 7 supplies air to the pressure control system 6. Both methods are possible and are not limited here.

[0054] Please refer to Figure 1 and Figure 3The pressurization control system 6 includes an inlet air path 61, on which a first regulating valve 62, a first control valve 63 and a first pressure relief valve 64 are provided. One end of the inlet air path 61 extends to the inner side of the top of the containment simulation component 1 to adjust the internal pressure value of the containment simulation component 1.

[0055] It can be seen that before the test, the sealing sleeve test piece 3 needs to be matched and installed with the containment simulation piece 1 and the pressure vessel simulation piece 2, and the initial set pressure is applied to the O-ring 4 and the inflatable sealing ring 5. After the installation is completed, the sealing sleeve test piece 3 is filled with water, and the air intake pressure is used to inflate and pressurize the space above the liquid to simulate the water pressure of the containment refueling.

[0056] Please refer to Figure 1 and Figure 2 , the number of O-rings 4 is two; the pressure control system 6 also includes a leakage detection flow path 65, one end of the leakage detection flow path 65 extends between the two O-rings 4, and a first leakage detection valve 66 is provided on the leakage detection flow path 65.

[0057] It can be seen that when the O-ring 4 is tested for sealing, the first control valve 63 and the first leakage detection valve 66 can be closed first, the inflation pressure can be adjusted through the first regulating valve 62, and the pressure value of the space above the water can be detected using a pressure gauge until the test pressure requirement is met.

[0058] Open the first leakage detection valve 66, detect the leakage of the O-ring 4, gradually increase the inflation pressure according to the process design pressure, maintain the pressure for the time required by the process design, and detect the leakage of the O-ring 4 at any time. At the same time, adjust the tightening torque of the connecting bolt 8 to obtain and verify the minimum tightening torque required for the sealing of the O-ring 4.

[0059] It can be seen that during the test, the space between the containment simulation component 1 and the sealing sleeve is still filled with test water, and the top of the test water is at least higher than the sealing position of the O-ring 4.

[0060] In one embodiment, desalted water is selected as the test water. In some other embodiments, it can be replaced by other media, which is not limited here.

[0061] In one embodiment, the number of the inflation sealing rings 5 ​​is at least two, and the at least two inflation sealing rings 5 ​​are arranged at intervals along the axial direction of the pressure vessel simulation part 2 .

[0062] The number of the inflatable sealing rings 5 ​​can be adjusted according to the test requirements. The present invention is described by taking three inflatable sealing rings 5 ​​as an example, but the specific number is not limited.

[0063] Specifically, the compressed air system 7 includes a main flow path 71 and at least two branch flows 72 connected to the main flow path 71 ; each branch flow 72 corresponds to an inflatable sealing ring 5 .

[0064] Furthermore, a second regulating valve 711 and a second pressure relief valve 712 are provided on the main flow path 71 ; and a second control valve 721 and a second leakage detection valve 722 are provided on each branch flow path 72 .

[0065] Moreover, each branch 72 is provided with a pressure gauge 723 .

[0066] The second regulating valve 711 on the main flow path 71 is used to adjust the input gas flow, and the second pressure relief valve 712 is used for rapid pressure relief. The second control valve 721 provided on each branch path 72 is used to adjust the inflation flow of the corresponding inflatable sealing ring 5, and the second leakage detection valve 722 is used for leakage detection to determine the leakage of the inflatable sealing ring 5, and the pressure gauge 723 is used to detect the pressure value at the inflatable sealing ring 5.

[0067] The sealing detection process of the inflatable sealing ring 5 is as follows: first close the second leakage detection valve 722, and inflate the inflatable sealing ring 5, the inflation pressure is determined according to the process design, then fill water into the sealing sleeve test piece 3, and use the pressure control system 6 to pressurize the top of the liquid to simulate the water pressure of the containment refueling, and then check the leakage of the O-ring 4 and the inflatable sealing ring 5, and gradually reduce the inflation pressure values ​​of the main path 71 and the branch path 72 according to the process design pressure, maintain the pressure according to the process requirement time, and detect the leakage of the inflatable sealing ring 5 until the inflatable sealing ring 5 leaks, and determine its minimum sealing pressure.

[0068] It can be seen that after the test of the inflatable sealing ring 5 is completed, the internal water and pressure of the containment simulation component 1 are released, and the alignment deviation between the sealing sleeve test component 3 and the containment simulation component 1 is adjusted. The alignment deviation can be adjusted according to actual conditions, and the above test steps are repeated to determine the sealing performance and minimum sealing pressure of the inflatable sealing ring 5 under different alignment conditions.

[0069] The pressure control system 6 and the compressed air system 7 can make the environment of the O-ring 4 and the inflatable sealing ring 5 of the sealing sleeve test piece 3 close to the real environment, so that the test results are more accurate. In addition, a set of test systems can meet the sealing performance of the sealing structure under different alignment conditions, and the flexibility of use is higher.

[0070] In summary, the containment simulation part 1 and the pressure vessel simulation part 2 are designed so that the testing of the sealing sleeve test part 3, the O-ring 4 and the inflatable sealing ring 5 are in a relatively real environment. At the same time, the pressurization control system 6 can simulate the water pressure in the containment refueling state, and the compressed air system 7 can adjust the inflation pressure of the inflatable sealing ring 5. The two can cooperate to obtain the minimum pressure required at the inflatable sealing ring 5. The same test system can meet the tests of different sealing forms, with high cost-effectiveness and strong operational flexibility.

[0071] Please refer to Figure 4 The present invention also proposes a sealing sleeve sealing test method for an integrated heating reactor, using the sealing sleeve sealing test system for an integrated heating reactor as described above, the test method comprises:

[0072] The pressure control system is used to pressurize the space between the containment simulation part and the pressure vessel simulation part to simulate the water pressure of the containment refueling;

[0073] Check the leakage of O-ring and inflatable seal ring, and gradually reduce the inflation pressure of the pressure control system according to the process design pressure until the inflatable seal ring leaks, so as to obtain the minimum sealing pressure of the inflatable seal ring;

[0074] The pressure of the pressure control system and the tightening torque of the connecting bolts are adjusted according to the process design pressure to obtain the minimum tightening torque of the connecting bolts required to ensure the sealing of the O-ring under different test pressures.

[0075] The following describes the test steps for O-rings and inflatable seals:

[0076] Step 1: Preparation;

[0077] First, install the sealing sleeve test piece on the containment simulation piece and the pressure vessel simulation piece, arrange the O-ring and the inflatable sealing ring according to the actual requirements, and tighten the connecting bolts of the mounting flange with the O-ring according to the set torque to achieve O-ring sealing.

[0078] At the same time, a pressurization control system and a compressed air system are arranged, and the containment simulation parts, O-rings and inflatable sealing rings are connected.

[0079] Step 2: Inflatable sealing ring test;

[0080] Close all the leakage detection valves in the system and open the remaining valves according to the design requirements;

[0081] The main flow of the compressed air system is used to inflate the inflatable sealing ring, and the inflation pressure is in accordance with the designed sealing pressure;

[0082] Fill the sealing sleeve with water, and the water level should be set according to the process requirements;

[0083] Use the air inlet path of the pressure control system to pressurize above the water level to simulate the water pressure of the containment refueling;

[0084] Open the first leakage detection valve and the second leakage detection valve to check the leakage of the O-ring and the inflatable sealing ring.

[0085] Gradually reduce the inflation pressure of the main flow path according to the process set pressure, and maintain the pressure for the time required by the process design, detect the leakage of the inflation sealing ring, until the inflation sealing ring leaks, and determine the minimum sealing pressure of the inflation sealing ring.

[0086] Open the second pressure relief valve to relieve the pressure on the inflatable sealing ring and exhaust the internal test medium.

[0087] Adjust the centering deviation between the sealing sleeve test piece and the containment simulation piece. The centering deviation range can be adjusted according to actual conditions. Repeat the above test steps to determine the sealing performance and minimum sealing pressure of the inflatable sealing ring under different alignment conditions.

[0088] Step 3: O-ring test;

[0089] Close all leak detection valves in the system and open the remaining valves according to design requirements.

[0090] Inflate the inflatable sealing ring, and the inflation pressure is determined according to the process design requirements;

[0091] Fill the sealing sleeve with water, and the water level should be set according to the process requirements;

[0092] Use the air inlet path to pressurize the water to simulate the water pressure in the containment refueling state;

[0093] Open the first leakage detection valve and the second leakage detection valve to check the leakage of the O-ring and the inflatable sealing ring;

[0094] According to the process design pressure, gradually increase the pressure of the pressure control system to the maximum pressure required by the system, and maintain the pressure for the time required by the process design, detect the leakage of the O-ring, and at the same time adjust the tightening torque of the connecting bolt 8 to obtain and verify the minimum tightening torque required for the sealing of the O-ring 4;

[0095] Open the first pressure relief valve and drain the internal test medium.

[0096] It can be seen that the sealing performance tests of the O-ring and the inflatable sealing ring are not performed in any particular order. The minimum tightening torque and inflation pressure required for the O-ring and the inflatable sealing ring are determined through the pressure control system and the compressed air system respectively, providing data reference for the design of the sealing structure.

[0097] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "install", "connect", "connect", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0098] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0099] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A sealing sleeve sealing test system for an integrated heating reactor, characterized in that: include: A containment shell simulation part and a pressure vessel simulation part, and a sealing sleeve test part are connected to the containment shell simulation part and the pressure vessel simulation part respectively; The top of the sealing sleeve test piece is sealed with the containment simulation piece by at least one O-ring, and the bottom of the sealing sleeve test piece is sealed with the pressure vessel simulation piece by at least one inflatable sealing ring; wherein, A pressure control system is provided on the top of the containment simulation component, which simulates the water pressure of the containment refueling through a pressure regulating component; a compressed air system is also provided on one side of the pressure vessel simulation component, and the compressed air system is connected to the inflatable sealing ring to provide sealing pressure for the inflatable sealing ring.

2. The sealing sleeve sealing test system for an integrated heating reactor according to claim 1, characterized in that: The pressurization control system includes an air intake path, on which a first regulating valve, a first control valve and a first pressure relief valve are provided. One end of the air intake path extends to the inner side of the top of the containment simulation component to adjust the internal pressure value of the containment simulation component.

3. The sealing sleeve sealing test system for the integrated heating reactor according to claim 2, characterized in that: The number of the O-rings is two; The pressure control system further comprises a leakage detection flow path, one end of which extends between the two O-rings, and a first leakage detection valve is disposed on the leakage detection flow path.

4. The sealing sleeve sealing test system for an integrated heating reactor according to claim 2, characterized in that: The space between the containment simulation piece and the sealing sleeve is also filled with test water, and the top height of the test water is at least higher than the O-ring sealing position between the top of the sealing sleeve test piece and the containment simulation piece.

5. The sealing sleeve sealing test system for an integrated heating reactor according to claim 1, characterized in that: The number of the inflation sealing rings is at least two, and at least two of the inflation sealing rings are spaced apart along the axial direction of the pressure vessel simulation component.

6. The sealing sleeve sealing test system for the integrated heating reactor according to claim 5, characterized in that: The compressed air system comprises a main flow path and at least two branch flows connected to the main flow path; Each of the branches corresponds to one of the inflatable sealing rings.

7. The sealing sleeve sealing test system for the integrated heating reactor according to claim 6, characterized in that: The main flow path is provided with a second regulating valve and a second pressure relief valve; A second control valve and a second leakage detection valve are provided on each of the branches.

8. The sealing sleeve sealing test system for an integrated heating reactor according to claim 6, characterized in that: Each branch line is also provided with a pressure gauge.

9. The sealing sleeve sealing test system for an integrated heating reactor according to claim 1, characterized in that: The containment simulation part, the pressure vessel simulation part and the sealing sleeve test part are coaxially arranged.

10. The sealing sleeve sealing test system for an integrated heating reactor according to claim 1, characterized in that: The pressure control system is independently supplied with air; or, the pressure control system is connected to the compressed air system, and the compressed air system supplies air to the pressure control system.

11. A sealing sleeve sealing test method for an integrated heating reactor, characterized in that: Using the sealing sleeve sealing test system for an integrated heating reactor as described in any one of claims 1 to 10, the test method comprises: The pressure control system is used to pressurize the space between the containment simulation part and the pressure vessel simulation part to simulate the water pressure of the containment refueling; Check the leakage of the O-ring and the inflatable sealing ring, and gradually reduce the inflation pressure of the pressure control system according to the process design pressure until the inflatable sealing ring leaks, so as to obtain the minimum sealing pressure of the inflatable sealing ring; The pressure of the pressure control system and the tightening torque of the connecting bolts are adjusted according to the process design pressure to obtain the minimum tightening torque of the connecting bolts required to ensure the sealing of the O-ring under different test pressures.

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