High temperature pile oversphere equipment running-in test system and method

Abstract

The application discloses a high-temperature stack ball passing equipment running-in test system and method, and relates to the field of ball passing equipment running-in test systems.The high-temperature stack ball passing equipment running-in test system comprises a ball passing device, a pressure regulating device, a vacuum device and a gas storage device, the low-pressure end of the ball passing device is connected with the input end of the pressure regulating device, the output end of the pressure regulating device is connected with the high-pressure end of the ball passing device, the vacuum device and the gas storage device are both connected with the pipeline between the ball passing device and the pressure regulating device, the vacuum device is used for vacuumizing the test loop, and the gas storage device is used for filling the test gas into the test loop.The pressure difference range between the high-pressure end and the low-pressure end of the ball passing device is stably controlled through the pressure regulating device, so as to verify the performances of the test equipment in the no-load mode.Before the test, the test loop is vacuumized through the vacuum device, and then the test gas is filled into the test loop through the gas storage device, so as to ensure the reliability of the test.Further, the test gas can be quickly supplemented through the gas storage device, and the test efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of nuclear power engineering technology, and in particular to a high-temperature reactor ball-passing equipment break-in test system and method. Background Technology

[0002] The pebble bed high-temperature gas-cooled reactor (PBT) is an advanced nuclear reactor with inherent safety, suitable for efficient power generation and high-temperature heating, and is one of the preferred reactor types in the international fourth-generation nuclear energy system. Utilizing the advantageous geometry of spherical fuel elements, the PBT can achieve refueling without reactor shutdown. According to Section 2.3.7.2 of HAD102 / 15-2021, "When an unproven design or facility is introduced, or when there is a deviation from existing engineering practice, its safety performance must be demonstrated through appropriate supporting studies, performance tests based on specific acceptance criteria, or verification through operational experience gained in other relevant applications. New designs, facilities, or practices must be fully tested before being put into service and monitored during operation to verify that the expected results have been achieved." Therefore, for newly developed non-standard equipment in the refueling system, appropriate testing equipment and methods are needed to fully verify the equipment's performance. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention propose a high-temperature ball-forming equipment break-in test system, which features reliable test results and high test efficiency.

[0005] The embodiments of the present invention also propose a method for running-in testing of high-temperature spherical reactors using the above-mentioned high-temperature spherical reactor running-in test system.

[0006] The high-temperature reactor ball-passing equipment break-in test system of this invention includes: a ball-passing device, a pressure regulating device, a vacuum device, and a gas storage device. The ball-passing device has a high-pressure end and a low-pressure end. The low-pressure end of the ball-passing device is connected to the input end of the pressure regulating device via a pipeline. The output end of the pressure regulating device is connected to the high-pressure end of the ball-passing device via a pipeline. The pressure regulating device is used to adjust the pressure difference between the high-pressure end and the output end of the ball-passing device. The ball-passing device, the pressure regulating device, and the pipeline between the ball-passing device and the pressure regulating device together form a test circuit. The vacuum device is connected to the pipeline between the ball-passing device and the pressure regulating device and is used to evacuate the test circuit. The gas storage device is connected to the pipeline between the ball-passing device and the pressure regulating device and is used to fill the test circuit with test gas.

[0007] The high-temperature reactor ball-passing device break-in test system of this invention uses a pressure regulating device to stably control the pressure difference range between the high-pressure and low-pressure ends of the ball-passing device, thereby verifying the performance of the test equipment (ball-passing device) in no-load mode and ensuring it meets the requirements of relevant regulations and guidelines. Furthermore, before the test, the test circuit is evacuated using a vacuum device, and then test gas is introduced into the test circuit through a gas storage device to ensure the reliability of the test. Moreover, according to the pressure changes in the test circuit, the test gas is quickly replenished through the gas storage device to improve test efficiency.

[0008] In some embodiments, the pressure regulating device includes a compressor and a buffer tank. The input end of the compressor is connected to the input end of the buffer tank via a pipeline. The output end of the buffer tank is connected to the high-pressure end of the ball-passing device via a pipeline. The low-pressure end of the ball-passing device is connected to the input end of the compressor via a pipeline.

[0009] In some embodiments, a first check valve is provided on the pipeline between the ball-passing device and the compressor to allow the fluid medium to flow through the first check valve to the compressor, and a second check valve is provided on the pipeline between the compressor and the buffer tank to allow the fluid medium to flow through the second check valve to the buffer tank; a first isolation valve is provided on the pipeline between the ball-passing device and the first check valve, a second isolation valve is provided on the pipeline between the second check valve and the buffer tank, and a third isolation valve is provided on the pipeline between the buffer tank and the ball-passing device.

[0010] In some embodiments, a differential pressure gauge and a pressure gauge are also included. The differential pressure gauge is connected to the pipeline at the high-pressure end of the ball-passing device and the pipeline at the low-pressure end of the ball-passing device, and the pressure gauge is connected to the buffer tank.

[0011] In some embodiments, the vacuum device includes a vacuum pump and a suction pipe, the vacuum pump being connected to the pipeline between the ball-passing device and the compressor via the suction pipe, and the suction pipe being provided with a vacuum pump isolation valve.

[0012] In some embodiments, the gas storage device includes a gas storage tank, a main pipe, a first sub-pipe, and a second sub-pipe. The main pipe is connected to the pipeline between the ball-passing device and the compressor. One end of the first sub-pipe is connected to the main pipe, and the other end of the first sub-pipe is connected to the gas storage tank. The first sub-pipe is equipped with a gas storage tank isolation valve. One end of the second sub-pipe is connected to the main pipe, and the other end of the second sub-pipe is connected to the outside. The second sub-pipe is equipped with a pressure relief valve.

[0013] In some embodiments, a dust dispenser is also included, which is connected to the low-pressure end of the ball-passing device via a pipeline, and a dispenser isolation valve is provided on the pipeline between the dust dispenser and the ball-passing device.

[0014] In some embodiments, the device further includes a dust filter and a purge pipe. The ball-passing device also has a dust discharge end. The dust filter is connected to the dust discharge end of the ball-passing device via a pipeline. A filter isolation valve is provided on the pipeline between the dust filter and the ball-passing device. One end of the purge pipe is connected to the pipeline between the ball-passing device and the first isolation valve. The other end of the purge pipe is connected to the pipeline between the buffer tank and the third isolation valve. A dust removal isolation valve is provided on the purge pipe.

[0015] In some embodiments, the housing of the ball-passing device is provided with a heating belt.

[0016] The present invention discloses a high-temperature reactor briquetting device break-in test method, which is used in the high-temperature reactor briquetting device break-in test system described in any of the above embodiments. The method includes: the vacuum device evacuating the test circuit; the gas storage device filling the test circuit with test gas until the preset test pressure is reached; the pressure regulating device adjusting the pressure difference between the high-pressure end and the low-pressure end of the briquetting device to stabilize it within 30-100 kPa; and the briquetting device undergoing an no-load operation test. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the high-temperature ball-passing equipment break-in test system according to an embodiment of the present invention.

[0018] Figure label:

[0019] 11. Ball-passing device; 12. Compressor; 13. Buffer tank; 14. Vacuum pump; 15. Air storage tank; 16. Dust additive; 17. Dust filter.

[0020] First check valve 101, second check valve 102, first isolation valve 103, second isolation valve 104, third isolation valve 105, vacuum pump isolation valve 106, gas tank isolation valve 107, pressure relief valve 108, dust collection isolation valve 109, additive isolation valve 110, filter isolation valve 111, dust removal isolation valve 112.

[0021] Differential pressure gauge 201, pressure gauge 202, heating belt 203. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] The high-temperature ball-passing equipment break-in test system of the present invention is described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the high-temperature spherical refueling equipment break-in test system of this invention includes: a spherical refueling device 11, a pressure regulating device, a vacuum device, and a gas storage device.

[0025] The ball-passing device 11 has a high-pressure end and a low-pressure end. The low-pressure end of the ball-passing device 11 is connected to the input end of the pressure regulating device via a pipeline, and the output end of the pressure regulating device is connected to the high-pressure end of the ball-passing device 11 via a pipeline. The pressure regulating device is used to adjust the pressure difference between the high-pressure end and the output end of the ball-passing device 11. The ball-passing device 11, the pressure regulating device, and the pipeline between the ball-passing device 11 and the pressure regulating device together form the test circuit. The vacuum device is connected to the pipeline between the ball-passing device 11 and the pressure regulating device, and is used to evacuate the test circuit. The gas storage device is connected to the pipeline between the ball-passing device 11 and the pressure regulating device, and is used to fill the test circuit with test gas.

[0026] Among them, the ball-passing device 11 is a newly developed dedicated ball-passing device in the ball-bed high-temperature reactor loading and unloading system. In the ball-bed high-temperature reactor loading and unloading system, it is used to perform functions such as single-mode delivery of spherical fuel elements and helium flow obstruction. The ball-passing device 11 is the test object in the high-temperature reactor ball-passing device break-in test system of this embodiment of the invention. Its stability under a certain pressure difference is fully verified to meet the requirements of relevant regulatory guidelines.

[0027] Those skilled in the art will understand that the ball-passing device 11 has a high-pressure end and a low-pressure end, and there is a certain pressure difference between the high-pressure end and the low-pressure end of the ball-passing device 11. The high-temperature reactor ball-passing equipment break-in test system of this embodiment of the invention is used to test the ball-passing equipment. The test conditions are based on the pressure difference of the ball-passing device 11 being in the range of 30-100 kPa, and the ball-passing device 11 is run under no-load to verify the various performance characteristics of the ball-passing device 11.

[0028] Optionally, the pressure regulating device is connected to the high-pressure end and the low-pressure end of the ball-passing device 11, and the pressure regulating device is used to adjust the pressure difference between the high-pressure end and the low-pressure end of the ball-passing device 11. Furthermore, the ball-passing device 11, the pipeline between the high-pressure end of the ball-passing device 11 and the pressure regulating device, the pressure regulating device, and the pipeline between the low-pressure end of the ball-passing device 11 and the pressure regulating device together form a test circuit, in which the test fluid medium flows.

[0029] Furthermore, both the vacuum device and the gas storage device are connected to the test circuit. Understandably, before the test begins, the entire test circuit is first evacuated using the vacuum device. After evacuation, the test gas (helium) is then introduced into the test circuit through the gas storage device to serve as the fluid medium. Once the introduced gas reaches the preset pressure, the pressure regulating device is activated to stabilize the pressure difference between the high-pressure and low-pressure ends of the ball-passing device 11 within 30-100 kPa. Finally, the drive mechanism of the ball-passing device 11 is activated, and the device operates under no-load, thus initiating the test.

[0030] Therefore, the high-temperature spherical reactor running-in test system of this invention uses a pressure regulating device to stably control the pressure difference range between the high-pressure end and the low-pressure end of the spherical reactor 11, thereby verifying the performance of the test equipment (spherical reactor 11) in no-load mode and ensuring it meets the requirements of relevant regulations and guidelines. Furthermore, before the test, the test circuit is evacuated using a vacuum device, and then test gas is introduced into the test circuit through a gas storage device to ensure the reliability of the test. Moreover, according to the pressure changes in the test circuit, the test gas is quickly replenished through the gas storage device to improve test efficiency.

[0031] In some embodiments, such as Figure 1 As shown, the pressure regulating device includes a compressor 12 and a buffer tank 13. The input end of the compressor 12 is connected to the input end of the buffer tank 13 via a pipeline, the output end of the buffer tank 13 is connected to the high-pressure end of the ball-passing device 11 via a pipeline, and the low-pressure end of the ball-passing device 11 is connected to the input end of the compressor 12 via a pipeline.

[0032] Understandably, the buffer tank 13 is used to temporarily store the gas supplied by the compressor 12, thus stabilizing the test circuit. When the test gas supplied to the test circuit by the gas storage device reaches the preset pressure, the compressor 12 is started, and the frequency of the compressor 12 is adjusted to keep the ball-passing device 11 within a stable pressure difference range.

[0033] Optionally, such as Figure 1 As shown, the pipeline between the ball-passing device 11 and the compressor 12 is the first vent pipe, the pipeline between the compressor 12 and the buffer tank 13 is the second vent pipe, and the pipeline between the buffer tank 13 and the ball-passing device 11 is the third vent pipe.

[0034] The compressor 12 draws gas from the low-pressure end of the ball-passing device 11 through the first vent pipe, compresses it, and then sends it to the buffer tank 13 through the second vent pipe for buffering and pressure stabilization. Then, it is transported to the high-pressure end of the ball-passing device 11 through the third vent pipe, so that there is a pressure difference between the high-pressure end and the low-pressure end of the ball-passing device 11, thereby conducting a test of the ball-passing device 11 running under no-load under a certain pressure difference.

[0035] In some embodiments, such as Figure 1 As shown, a first check valve 101 is provided on the pipeline between the ball-passing device 11 and the compressor 12, so that the fluid medium flows to the compressor 12 through the first check valve 101. A second check valve 102 is provided on the pipeline between the compressor 12 and the buffer tank 13, so that the fluid medium flows to the buffer tank 13 through the second check valve 102.

[0036] Optionally, such as Figure 1 As shown, a first one-way valve 101 is provided on the first vent pipe, and a second one-way valve 102 is provided on the second vent pipe. It can be understood that the first one-way valve 101 is used to control the gas in the first vent pipe to flow unidirectionally into the compressor 12, and the second one-way valve 102 is used to control the gas in the second vent pipe to flow unidirectionally into the buffer tank 13, thereby avoiding the phenomenon of gas backflow in the test circuit.

[0037] In some embodiments, such as Figure 1 As shown, a first isolation valve 103 is provided on the pipeline between the ball-passing device 11 and the first one-way valve 101, a second isolation valve 104 is provided on the pipeline between the second one-way valve 102 and the buffer tank 13, and a third isolation valve 105 is provided on the pipeline between the buffer tank 13 and the ball-passing device 11.

[0038] Optionally, such as Figure 1 As shown, the first vent pipe is also equipped with a first isolation valve 103, which is located between the ball-passing device 11 and the first one-way valve 101. The second vent pipe is also equipped with a second isolation valve 104, which is located between the buffer tank 13 and the second one-way valve 102. The third vent pipe is equipped with a third isolation valve 105. It can be understood that the first isolation valve 103 is used to control the opening and closing of the first vent pipe, the second isolation valve 104 is used to control the opening and closing of the second vent pipe, and the third isolation valve 105 is used to control the opening and closing of the third vent pipe.

[0039] In some embodiments, such as Figure 1 As shown, it also includes a differential pressure gauge 201 and a pressure gauge 202. The differential pressure gauge 201 is connected to the pipeline at the high-pressure end of the ball-passing device 11 and the pipeline at the low-pressure end of the ball-passing device 11. The pressure gauge 202 is connected to the buffer tank 13.

[0040] Optionally, such as Figure 1 As shown, differential pressure gauge 201 is connected to the first vent pipe and the third vent pipe via pipelines. Differential pressure gauge 201 is used to monitor the pressure difference between the high-pressure end and the low-pressure end of the ball-passing device 11. Pressure gauge 202 is connected to buffer tank 13 via pipelines. Pressure gauge 202 is used to monitor the pressure of buffer tank 13.

[0041] In some embodiments, such as Figure 1As shown, the vacuum device includes a vacuum pump 14 and a suction pipe. The vacuum pump 14 is connected to the pipeline between the ball-passing device 11 and the compressor 12 via the suction pipe. A vacuum pump isolation valve 106 is provided on the suction pipe.

[0042] Optionally, such as Figure 1 As shown, one end of the suction pipe is connected to the first vent pipe, and the connection between the suction pipe and the first vent pipe is located between the first isolation valve 103 and the first one-way valve 101. The other end of the suction pipe is connected to the suction end of the vacuum pump 14, and the exhaust end of the vacuum pump 14 is connected to the outside, so that the vacuum pump 14 evacuates the test circuit before the test begins.

[0043] Furthermore, a vacuum pump isolation valve 106 is installed on the evacuation pipe, which is used to control the opening and closing of the evacuation pipe. Thus, before the test begins, the vacuum pump isolation valve 106 is opened, and the vacuum pump 14 is started to evacuate the test circuit. After the evacuation is completed, the vacuum pump isolation valve 106 and the vacuum pump 14 are closed.

[0044] In some embodiments, such as Figure 1 As shown, the gas storage device includes a gas storage tank 15, a main pipe, a first sub-pipe, and a second sub-pipe. The main pipe is connected to the pipeline between the ball-passing device 11 and the compressor 12. One end of the first sub-pipe is connected to the main pipe, and the other end of the first sub-pipe is connected to the gas storage tank 15. The first sub-pipe is equipped with a gas storage tank isolation valve 107. One end of the second sub-pipe is connected to the main pipe, and the other end of the second sub-pipe is connected to the outside. The second sub-pipe is equipped with a pressure relief valve 108.

[0045] Optionally, such as Figure 1 As shown, one end of the main pipe is connected to the first vent pipe, and the connection between the main pipe and the first vent pipe is located between the first isolation valve 103 and the first one-way valve 101. One end of the first sub-pipe and one end of the first sub-pipe are both connected to the other end of the main pipe. The other end of the first sub-pipe is connected to the gas storage tank 15, and the other end of the second sub-pipe is connected to the outside.

[0046] The gas storage tank 15 is used to store helium gas. The gas storage tank 15 is used to fill the test circuit with test gas through the first daughter pipe and the mother pipe. After the test, the test circuit is depressurized through the mother pipe and the second daughter pipe.

[0047] Furthermore, such as Figure 1 As shown, the first sub-pipe is equipped with a gas storage tank isolation valve 107, which is used to control the opening and closing of the first sub-pipe. The second sub-pipe is equipped with a pressure relief valve 108, which is used to control the opening and closing of the second sub-pipe.

[0048] Therefore, after the test circuit is evacuated, the gas storage tank isolation valve 107 is opened, and the test gas is introduced into the test circuit through the gas storage tank 15. Alternatively, during the test, when the test circuit needs to be replenished with test gas, the gas storage tank isolation valve 107 is opened. After the test is completed, the pressure relief valve 108 is opened to release the pressure in the test circuit.

[0049] In some embodiments, such as Figure 1 As shown, it also includes a dust adder 16, which is connected to the low-pressure end of the ball passing device 11 via a pipeline. An adder isolation valve 110 is provided on the pipeline between the dust adder 16 and the ball passing device 11.

[0050] Optionally, such as Figure 1 As shown, the dust additive 16 has a dust inlet and a dust outlet. The dust inlet of the dust additive 16 is connected to a first dust pipe, and a dust filling isolation valve 109 is provided on the first dust pipe to control the opening and closing of the first dust pipe. The dust outlet of the dust additive 16 is connected to the low-pressure end of the ball-passing device 11 via a pipeline. The dust additive 16 is equipped with multiple sets of dust storage tubes, which store graphite dust. Graphite dust can be added to the ball-passing device 11 periodically and quantitatively according to experimental requirements to simulate the actual operating conditions of the ball-passing device 11.

[0051] Furthermore, such as Figure 1 As shown, the pipeline between the dust adder 16 and the ball-passing device 11 is a second dust pipe, which is equipped with an adder isolation valve 110 to control the opening and closing of the second dust pipe. Understandably, before the test, the dust addition isolation valve 109 is opened, and a certain amount of graphite dust is added to the dust adder 16 through the first dust pipe, after which the dust addition isolation valve is closed. After the test begins, the adder isolation valve 110 is opened, and graphite dust is periodically and quantitatively added to the ball-passing device 11. Thus, by setting up the dust adder 16, various harsh dust operating environments in the field are simulated, and the impact of graphite dust on the operation of the ball-passing device 11 is explored.

[0052] In some embodiments, such as Figure 1 As shown, it also includes a dust filter 17 and a purge pipe. The ball-passing device 11 also has a dust discharge end, and the dust filter 17 is connected to the dust discharge end of the ball-passing device 11 via a pipeline. A filter isolation valve 111 is provided on the pipeline between the dust filter 17 and the ball-passing device 11. One end of the purge pipe is connected to the pipeline between the ball-passing device 11 and the first isolation valve 103, and the other end of the purge pipe is connected to the pipeline between the buffer tank 13 and the third isolation valve 105. A dust removal isolation valve 112 is provided on the purge pipe.

[0053] Optionally, such as Figure 1As shown, the input end of the dust filter 17 is connected to the dust discharge end of the ball-passing device 11 via a pipeline, and the output end of the dust filter 17 is connected to the outside. One end of the purge pipe is connected to the first vent pipe, and the connection between the purge pipe and the first vent pipe is located between the ball-passing device 11 and the first isolation valve 103. The other end of the purge pipe is connected to the third vent pipe, and the connection between the purge pipe and the third vent pipe is located between the buffer tank 13 and the third isolation valve 105.

[0054] Understandably, the dust filter 17 is used to periodically collect and clean excess graphite dust in the high-temperature ball-bearing equipment break-in test system of this embodiment of the invention. For example, by closing the first isolation valve 103 and the third isolation valve 105, and opening the dust removal isolation valve 112 and the filter isolation valve 111, the pressure in the test circuit is higher than the external pressure, allowing the pipeline to be purged using the pressure in the test circuit, so that the dust in the pipeline enters the dust filter 17 for filtration and collection. Furthermore, the compressor 12 can also be used to purge the pipeline.

[0055] In some embodiments, such as Figure 1 As shown, a heating band 203 is provided on the outer shell of the ball-passing device 11. It can be understood that the heating band 203 covers the outer shell of the ball-passing device 11 and is used to heat the ball-passing device 11 to simulate the ambient temperature of actual working conditions.

[0056] The following describes the high-temperature ball-forming equipment break-in test method according to an embodiment of the present invention.

[0057] The high-temperature reactor briquetting equipment break-in test method of this invention is used in the high-temperature reactor briquetting equipment break-in test system in the above embodiments, and the method includes:

[0058] The vacuum device evacuates the test circuit.

[0059] The gas storage device fills the test circuit with test gas until the preset test pressure is reached.

[0060] The pressure regulating device adjusts the pressure difference between the high-pressure end and the low-pressure end of the ball-passing device 11 to stabilize it within 30-100 kPa.

[0061] The ball-passing device 11 was tested under no-load conditions.

[0062] Specifically, before the test, ensure that all isolation valves in the entire high-temperature spherical refueling equipment break-in test system are in the closed state.

[0063] Experimental preparation:

[0064] S1: Open the dust isolation valve 109, add a certain amount of graphite dust into the dust adder 16, and then close the dust isolation valve 109.

[0065] S2: After opening the first one-way valve 101, the second one-way valve 102, the first isolation valve 103, the second isolation valve 104, and the third isolation valve 105, open the vacuum pump isolation valve 106 and start the vacuum pump 14 to evacuate the test circuit. After evacuation is complete, close the vacuum pump isolation valve 106.

[0066] Experiment Implementation:

[0067] S1: Open the gas storage tank isolation valve 107, and charge the test gas into the test circuit through the gas storage tank 15 until the preset test pressure is reached, and then close the gas storage tank isolation valve 107.

[0068] S2: Activate the heating belt 203 to heat the test object (ball-passing device 11) to the preset temperature (temperature range of 80-150℃).

[0069] S3: Start compressor 12, adjust the frequency of compressor 12, and observe the differential pressure gauge 201 to ensure it is stable within the differential pressure range of 30-100 kPa.

[0070] S4: Start the drive mechanism of the ball-passing device 11.

[0071] S5: Open the adder isolation valve 110 to add the preset amount of graphite dust to the ball-passing device 11, and close the adder isolation valve 110 after the graphite dust addition is completed.

[0072] S6: Set the no-load operating frequency of the ball-passing device 11. The ball-passing device 11 stops operating after completing 300,000 revolutions.

[0073] S7: Close the first isolation valve 103 and the second isolation valve 104, open the dust removal isolation valve 112 and the filter isolation valve 111, blow away the dust in the test circuit, and use the dust filter 17 to clean and collect the graphite powder.

[0074] S8: Repeat steps S1-S7 to fully verify the performance of the ball-passing device 11 under various operating conditions.

[0075] After the experiment:

[0076] Shut down the drive mechanisms of compressor 12 and ball-passing device 11, open pressure relief valve 108 to depressurize the test circuit. Then, disassemble the connection between ball-passing device 11 and the system, and check the structural integrity of the equipment.

[0077] Therefore, the high-temperature sphere forming device break-in test method of this embodiment establishes a test loop with a stable pressure difference, which can fully verify the various performance characteristics of the sphere forming device 11 in no-load mode. Furthermore, by configuring the gas storage tank 15, the test gas can be quickly replenished, improving test efficiency. Additionally, by configuring the dust additive 16, various harsh dust operating environments in the field can be simulated, exploring the impact of graphite dust on the operation of the sphere forming device 11.

[0078] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0081] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0082] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0083] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A high-temperature briquetting equipment break-in test system, characterized in that, include: A ball-passing device, wherein the ball-passing device has a high-pressure end and a low-pressure end; A pressure regulating device is provided, wherein the low-pressure end of the ball-passing device is connected to the input end of the pressure regulating device via a pipeline, and the output end of the pressure regulating device is connected to the high-pressure end of the ball-passing device via a pipeline. The pressure regulating device is used to adjust the pressure difference between the high-pressure end and the output end of the ball-passing device and stabilize it within the range of 30-100 kPa for conducting no-load running-in tests of the ball-passing device. The ball-passing device, the pressure regulating device, and the pipeline between the ball-passing device and the pressure regulating device together form a test circuit. A vacuum device is connected to the pipeline between the ball-passing device and the pressure regulating device, and the vacuum device is used to evacuate the test circuit. A gas storage device is provided, which is connected to the pipeline between the ball-passing device and the pressure regulating device. The gas storage device is used to fill the test circuit with test gas.

2. The high-temperature briquetting equipment break-in test system according to claim 1, characterized in that, The pressure regulating device includes a compressor and a buffer tank. The input end of the compressor is connected to the input end of the buffer tank via a pipeline. The output end of the buffer tank is connected to the high-pressure end of the ball-passing device via a pipeline. The low-pressure end of the ball-passing device is connected to the input end of the compressor via a pipeline.

3. The high-temperature briquetting equipment break-in test system according to claim 2, characterized in that, A first check valve is provided on the pipeline between the ball-passing device and the compressor to allow the fluid medium to flow to the compressor through the first check valve. A second check valve is provided on the pipeline between the compressor and the buffer tank to allow the fluid medium to flow to the buffer tank through the second check valve. A first isolation valve is provided on the pipeline between the ball-passing device and the first one-way valve, a second isolation valve is provided on the pipeline between the second one-way valve and the buffer tank, and a third isolation valve is provided on the pipeline between the buffer tank and the ball-passing device.

4. The high-temperature briquetting equipment break-in test system according to claim 2, characterized in that, It also includes a differential pressure gauge and a pressure gauge, wherein the differential pressure gauge is connected to the pipeline at the high-pressure end of the ball-passing device and the pipeline at the low-pressure end of the ball-passing device, and the pressure gauge is connected to the buffer tank.

5. The high-temperature briquetting equipment break-in test system according to claim 2, characterized in that, The vacuum device includes a vacuum pump and a suction pipe. The vacuum pump is connected to the pipeline between the ball-passing device and the compressor via the suction pipe. The suction pipe is equipped with a vacuum pump isolation valve.

6. The high-temperature ball-forming equipment break-in test system according to claim 2, characterized in that, The gas storage device includes a gas storage tank, a main pipe, a first sub-pipe, and a second sub-pipe. The main pipe is connected to the pipeline between the ball-passing device and the compressor. One end of the first sub-pipe is connected to the main pipe, and the other end of the first sub-pipe is connected to the gas storage tank. The first sub-pipe is equipped with a gas storage tank isolation valve. One end of the second sub-pipe is connected to the main pipe, and the other end of the second sub-pipe is connected to the outside. The second sub-pipe is equipped with a pressure relief valve.

7. The high-temperature briquetting equipment break-in test system according to claim 3, characterized in that, It also includes a dust additive, which is connected to the low-pressure end of the ball-passing device via a pipeline, and an additive isolation valve is provided on the pipeline between the dust additive and the ball-passing device.

8. The high-temperature briquetting equipment break-in test system according to claim 7, characterized in that, Also includes: The dust filter, wherein the ball-passing device also has a dust discharge end, the dust filter is connected to the dust discharge end of the ball-passing device via a pipeline, and a filter isolation valve is provided on the pipeline between the dust filter and the ball-passing device; A purge pipe, one end of which is connected to the pipeline between the ball-passing device and the first isolation valve, and the other end of which is connected to the pipeline between the buffer tank and the third isolation valve, and the purge pipe is equipped with a dust removal isolation valve.

9. The high-temperature briquetting equipment break-in test system according to claim 8, characterized in that, The outer casing of the ball-passing device is equipped with a heating belt.

10. A break-in test method for a high-temperature briquetting equipment, characterized in that, The method is used in the high-temperature ball-passing equipment break-in test system as described in any one of claims 1-9, the method comprising: The vacuum device evacuates the test circuit; The gas storage device fills the test circuit with test gas until the preset test pressure is reached; The pressure regulating device adjusts the pressure difference between the high-pressure end and the low-pressure end of the ball-passing device to stabilize it within 30-100 kPa. The ball-passing device underwent an unloaded operation test.

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