System and method for testing high temperature resistance and high pressure resistance of hose

Abstract

The invention provides a test system and a test method for high temperature resistance and high pressure resistance of a hose. The test system comprises a test pump, a pipe valve assembly, a heating furnace and a plugging assembly, the pipe valve assembly is connected with an outlet of the testing pump and one end of a hose to be tested, and the pipe valve assembly is used for inputting liquid into the hose and monitoring the pressure and temperature in the hose; the heating furnace is used for accommodating the hose; the plugging assembly is connected with the other end of the hose so as to plug the hose. The testing steps can be simplified, meanwhile, testing of hoses with different high-temperature requirements is met, and the testing range is expanded.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline testing, and in particular relates to a high temperature resistance and high pressure resistance testing system and a testing method for a hose. Background Art

[0002] In production and life, we often see high temperature and high pressure resistant hoses used in some equipment. In order to ensure that the hose can adapt to high temperature and high pressure environments, the high temperature and high pressure resistance of the hose must be verified under the condition of ensuring safety before installation.

[0003] In the related art, the high temperature and high pressure resistance performance of the hose is verified through a test system. The test system includes an insulated water tank, a test pump, and a connecting pipe. The insulated water tank can adjust the water temperature in the insulated water tank in real time. When the test system tests the hose, the hose is completely immersed in the hot water in the insulated water tank. The hot water temperature generally does not exceed 90°C, and there will be a lot of evaporation if it exceeds 90°. After the hose is soaked for a specified time, the water tank is cooled down, and then the test pump is connected to the hose through a connecting pipe to pressurize the hose for a pump pressure test.

[0004] However, when testing the hose, the above test system first soaks the hose in hot water and then performs a pump pressure test, which makes the test process cumbersome. Moreover, due to the limited temperature of hot water, the hose can only be in a high temperature environment not higher than 100°, making it difficult to conduct a high temperature resistance test of the hose higher than 100°, which limits the scope of application. Summary of the invention

[0005] The disclosed embodiment provides a test system and method for high temperature and high pressure resistance of a hose, which can simplify the test steps, meet the test of hoses with different high temperature requirements, and expand the test range. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a high-temperature and high-pressure resistant testing system for a hose, the testing system comprising a test pump, a pipe-valve assembly, a heating furnace and a sealing assembly; the pipe-valve assembly is respectively connected to the outlet of the test pump and one end of the hose to be tested, the pipe-valve assembly is used to input liquid into the hose and monitor the pressure and temperature inside the hose; the heating furnace is used to accommodate the hose; the sealing assembly is connected to the other end of the hose to seal the hose.

[0007] In another embodiment of the present disclosure, the pipe-valve assembly includes a first connecting pipe body, a reversing valve and a second connecting pipe body, the first connecting pipe body and the reversing valve are both located outside the heating furnace, and the second connecting pipe body is located inside the heating furnace; one end of the pipe body is connected to the outlet of the test pump, the other end of the pipe body is connected to the liquid inlet of the reversing valve, the liquid outlet of the reversing valve is connected to one end of the second connecting pipe body, and the other end of the second connecting pipe body is connected to one end of the hose.

[0008] In yet another implementation of the present disclosure, the second connecting pipe body is a metal pipe.

[0009] In yet another implementation of the present disclosure, the pipe valve assembly further includes a pressure sensor and a temperature sensor, and the pressure sensor and the temperature sensor are connected in the second connecting pipe body at intervals.

[0010] In another implementation of the present disclosure, the pipe valve assembly also includes a relief valve, which is located between the test pump and the first connecting pipe body, and the liquid inlet of the relief valve is respectively connected to the outlet of the test pump and one end of the first connecting pipe body, the liquid outlet of the relief valve is connected to the first connecting pipe body, and the control port of the relief valve is connected to its own liquid outlet.

[0011] In yet another implementation of the present disclosure, the blocking component is a switch valve, and the liquid inlet of the switch valve is connected to the hose.

[0012] In yet another implementation of the present disclosure, the test system further includes a heat conducting member, the heat conducting member has a sealed cavity inside, and the sealed cavity is connected to the outlet of the switch valve.

[0013] In yet another implementation of the present disclosure, the heat conducting member is a metal pipe.

[0014] In another implementation of the present disclosure, the test system also includes a control unit, which is electrically connected to the reversing valve, the temperature sensor, the pressure sensor and the heating furnace, respectively, and the control unit can adjust the heating temperature of the heating furnace, the opening size of the reversing valve and the output pressure of the test pump according to the detection values ​​of the temperature sensor and the pressure sensor.

[0015] In another implementation of the present disclosure, a method for testing the high temperature and high pressure resistance of a hose is provided, the testing method comprising: connecting the hose to be tested to a testing system, the testing system being the testing system described above; starting the heating furnace in the testing system so that the hose is in a preset high temperature environment; starting the test pump in the testing system and controlling the pipe and valve assembly to input liquid into the hose until the pressure in the hose reaches a preset pressure value; and controlling the pipe and valve assembly to maintain the pressure of the hose.

[0016] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

[0017] In the disclosed embodiment, the hose to be tested is connected to the test pump through the pipe valve assembly so that liquid is introduced into the hose through the test pump. At the same time, since the test system also includes a plugging assembly, and the plugging assembly is connected to the hose, the hose can be plugged by the plugging assembly, so that the hose can maintain pressure during the test, thereby completing the pressure test.

[0018] Since the test system also includes a heating furnace, and the hose to be tested is located in the heating furnace, the heating furnace can provide a high-temperature environment for the hose, so that the hose can be in a high-temperature environment for a long time. Moreover, since the heating furnace can be heated according to the set temperature, the heating furnace can put the hose in a high-temperature environment higher than 100°, and then high-temperature testing can be performed on hoses with different high-temperature performances, greatly expanding the scope of application of the test system.

[0019] Furthermore, since the pipe valve assembly can monitor the pressure and temperature in the hose in real time, the output pressure of the test pump and the heating temperature of the heating furnace can be guided in turn according to the monitored pressure and temperature in the hose, so that the liquid pressure and temperature in the hose are consistent with the actual values, thereby improving the detection accuracy.

[0020] It can be seen that the above test system can not only simplify the test process, but also truly simulate the use environment of the hose and improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a high temperature resistance and high pressure resistance testing system for a hose provided in an embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1 Control schematic diagram of the mid-pipe valve assembly;

[0024] Figure 3 It is a flow chart of a method for testing the high temperature resistance and high pressure resistance of a hose provided in an embodiment of the present disclosure.

[0025] The symbols in the figure mean the following:

[0026] 1. Test the pump;

[0027] 2. Pipe valve assembly; 20. Transition pipe body; 21. First connecting pipe body; 22. Reversing valve; 23. Second connecting pipe body; 24. Pressure sensor; 25. Temperature sensor; 26. Overflow valve;

[0028] 3. Heating furnace;

[0029] 4. Plugging assembly; 41. Switch valve;

[0030] 5. Heat conducting member; 50. Sealed cavity;

[0031] 6. Control unit;

[0032] 100. Hose. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0034] The present disclosure provides a high temperature and high pressure resistance test system for a hose. Figure 1 As shown, the test system includes a test pump 1 , a pipe valve assembly 2 , a heating furnace 3 and a plugging assembly 4 .

[0035] The pipe-valve assembly 2 is respectively connected to the outlet of the test pump 1 and one end of the hose to be tested. The pipe-valve assembly 2 is used to input pressure liquid into the hose 100 and monitor the pressure and temperature in the hose 100 .

[0036] The heating furnace 3 is used to accommodate the hose 100. The plugging assembly 4 is connected to the other end of the hose 100 to plug the hose 100.

[0037] When the high temperature and high pressure resistance test system of the hose provided by the embodiment of the present disclosure is used to test the high temperature and high pressure resistance of the hose to be tested, since the test system includes a test pump 1 and a pipe valve assembly 2, the hose to be tested can be connected to the test pump 1 through the pipe valve assembly 2, so that liquid can be passed into the hose 100 through the test pump 1 to perform relevant pressure tests. At the same time, since the test system also includes a plugging assembly 4, and the plugging assembly 4 is connected to the hose 100, the hose 100 can be plugged by the plugging assembly 4, so that the hose 100 can maintain pressure when being tested, thereby completing the pressure test.

[0038] Since the test system further includes a heating furnace 3, and the hose 100 to be tested is located in the heating furnace 3, the heating furnace 3 can provide a high-temperature environment for the hose 100, so that the hose 100 can be in a high-temperature environment for a long time. Moreover, since the heating furnace 3 can heat according to a set temperature, the heating furnace 3 can make the hose 100 be in a high-temperature environment higher than 100°, and then high-temperature testing can be performed on hoses with different high-temperature resistance performance, greatly expanding the scope of application of the test system.

[0039] Furthermore, since the pipe valve assembly 2 can monitor the pressure and temperature in the hose 100 in real time, the output pressure of the test pump 1 and the heating temperature of the heating furnace 3 can be guided in turn according to the monitored pressure and temperature in the hose 100, so that the liquid pressure and temperature in the hose 100 are consistent with the actual values, thereby improving the detection accuracy.

[0040] It can be seen that the above test system can not only simplify the test process, but also truly simulate the use environment of the hose and improve the detection accuracy.

[0041] In the disclosed embodiment, the hose 100 is a rubber hose and is used in a high temperature environment of about 120° for a long time.

[0042] The test pump 1 is a water pump and is used to input pressurized water into the hose 100 so as to build up pressure in the hose 100 .

[0043] The heating furnace 3 is an electric heating furnace. The heating temperature of the heating furnace 3 can be adjusted by controlling the input parameters of the heating furnace 3.

[0044] Optionally, the pipe-valve assembly 2 includes a first connecting pipe body 21 , a reversing valve 22 and a second connecting pipe body 23 . The first connecting pipe body 21 and the reversing valve 22 are both located outside the heating furnace 3 , and the second connecting pipe body 23 is located inside the heating furnace 3 .

[0045] One end of the first connecting tube body 21 is connected to the outlet of the test pump 1, the other end of the first connecting tube body 21 is connected to the liquid inlet of the reversing valve 22, the liquid outlet of the reversing valve 22 is connected to one end of the second connecting tube body 23, and the other end of the second connecting tube body 23 is connected to one end of the hose 100.

[0046] In the above implementation, the pipe valve assembly 2 is configured as a first connecting pipe body 21, a reversing valve 22 and a second connecting pipe body 23, so that the reversing valve 22 and the test pump 1 can be connected together through the first connecting pipe body 21, so that the pressurized water output by the test pump 1 can enter the reversing valve 22.

[0047] The reversing valve 22 is used to control the connection between the test pump 1 and the hose 100. The reversing valve 22 can control the flow rate and pressure of the pressurized water output by the test pump 1 entering the hose 100 by adjusting the size of its opening.

[0048] In the embodiment of the present disclosure, the first connecting tube body 21 is a flexible hose, for example, a rubber hose or the like.

[0049] The two ends of the first connecting pipe body 21 are respectively connected to the reversing valve 22 and the test pump 1 through joints. The joints are threadedly connected to the first connecting pipe body 21, the reversing valve 22 and the test pump 1. This facilitates disassembly.

[0050] Exemplarily, the reversing valve 22 is a two-position four-way electromagnetic reversing valve.

[0051] Optionally, the second connecting pipe body 23 is a metal pipe.

[0052] In the above implementation, since the second connecting pipe body 23 is used to connect with the hose 100, and the hose 100 is located in the heating furnace 3, the second connecting pipe body 23 is set as a metal pipe, so that the first connecting pipe body 21 and the hose 100 can be placed in the heating furnace 3 for heat preservation, which not only facilitates the arrangement of the hose 100 in the heating furnace 3, but also facilitates the heat preservation effect of the hose 100.

[0053] Furthermore, by configuring the second connecting pipe body 23 as a metal pipe, the high thermal conductivity of the metal pipe can be utilized to quickly conduct heat to the water in the second connecting pipe body 23 through the second connecting pipe body 23, so that the liquid inside the pipeline is quickly heated and the detection efficiency is improved.

[0054] Exemplarily, the second connecting pipe body 23 may be a structural member such as a copper pipe.

[0055] In this embodiment, in order to facilitate the second connecting pipe body 23 to be placed in the heating furnace 3, a transition pipe body 20 is also connected in series between the reversing valve 22 and the second connecting pipe body 23. The transition pipe body 20 is inserted into the side wall of the heating furnace 3 and connected to the heating furnace 3.

[0056] In order to avoid the influence of temperature on the transition pipe body 20, the transition pipe body 20 can be a steel pipe, etc. The two ends of the transition pipe body are also provided with joints. The two ends of the transition pipe body 20 are respectively connected to the reversing valve 22 and the second connecting pipe body 23 through the joints.

[0057] Similarly, the connector is connected to the transition pipe body 20, the reversing valve 22 and the second connecting pipe body 23 respectively through threads, so as to facilitate assembly and disassembly.

[0058] Optionally, the pipe valve assembly 2 further includes a pressure sensor 24 and a temperature sensor 25 , and the pressure sensor 24 and the temperature sensor 25 are connected in the second connecting pipe body 23 at intervals.

[0059] In the above implementation, the pressure sensor 24 is used to monitor the pressure in the hose 100 in real time and provide feedback. The temperature sensor 25 is used to monitor the temperature of the fluid in the hose 100 in real time and provide feedback.

[0060] In addition, it should be noted that since the pressure sensor 24 and the temperature sensor 25 are both placed in the heating furnace 3, the pressure sensor 24 and the temperature sensor 25 in the embodiment of the present disclosure are both high temperature resistant sensors.

[0061] The pressure sensor 24 and the temperature sensor 25 can be used normally in a high temperature environment, and the detection results will not be affected by the temperature.

[0062] In the embodiment of the present disclosure, a first connector and a second connector are provided in the side wall of the second connecting tube body 23 at intervals along the axial direction of the second connecting tube body 23 .

[0063] The first connector and the second connector are located on the same side of the second connecting tube body 23. The interior of the first connector and the interior of the second connector are both connected to the interior of the second connecting tube body 23.

[0064] The first connector is located between the second connector and the reversing valve 22. The pressure sensor 24 is plugged into the first connector. The temperature sensor 25 is plugged into the second connector.

[0065] In other examples, the pressure sensor 24 and the temperature sensor 25 may also be other detection instruments, such as a pressure gauge and a thermometer, etc. However, compared with sensors, pressure gauges and thermometers can only detect but cannot provide feedback to other components.

[0066] Figure 2yes Figure 1 For the control schematic diagram of the center pipe valve assembly, see Figure 2 Optionally, the pipe valve assembly 2 also includes a relief valve 26, which is located between the test pump 1 and the first connecting pipe body 21, and the liquid inlet of the relief valve 26 is respectively connected to the outlet of the test pump 1 and one end of the first connecting pipe body 21, and the liquid outlet of the relief valve 26 is connected to the liquid recovery tank.

[0067] In the above implementation, the overflow valve 26 is connected to the outlet of the test pump 1 to limit the maximum pressure output by the test pump 1 to prevent the hose 100 from being damaged and failing due to excessive pressure output by the test pump 1.

[0068] Since the liquid inlet of the overflow valve 26 is connected to the outlet of the test pump 1, and the liquid outlet of the overflow valve 26 is connected to the liquid recovery tank, when the liquid pressure output by the test pump 1 is too large (exceeding the set working pressure of the overflow valve 26, that is, exceeding the elastic force of the spring of the overflow valve 26), the internal valve core of the overflow valve 26 moves, so that the liquid outlet of the overflow valve 26 is connected to the liquid inlet, the overflow valve 26 opens, and the liquid pumped out by the test pump 1 is depressurized through the overflow valve 26 and flows back to the liquid recovery tank, thereby limiting the maximum output pressure of the test pump 1.

[0069] On the contrary, when the pressure of the liquid output by the test pump 1 is small (not greater than the set working pressure of the relief valve 26, that is, not greater than the elastic force of the spring of the relief valve 26), the valve core inside the relief valve 26 is reset under the action of the spring, so that the liquid outlet of the relief valve 26 is disconnected from the liquid inlet, and the relief valve 26 is closed. The relief valve 26 will not release the pressure of the liquid pumped by the test pump 1.

[0070] In other examples, the overflow valve 26 may also be replaced by other valves, such as a safety valve, a pressure reducing valve, etc. As long as the output pressure of the test pump 1 can be kept within the set range by the corresponding valves, the system can be protected and the system can be prevented from being overloaded, the present disclosure does not impose any restrictions on this structure.

[0071] In the disclosed embodiment, in order to facilitate adjustment of the elastic force of the spring of the relief valve 26 , the relief valve 26 may be a pilot-operated relief valve.

[0072] Continue to see Figure 1 Optionally, the blocking component 4 is a switch valve 41, and the liquid inlet of the switch valve 41 is connected to the hose.

[0073] In the above implementation, the switch valve 41 can not only block the hose 100, but also quickly discharge the liquid in the hose 100 by opening the switch valve 41 after the test is finished, thereby improving the test efficiency.

[0074] In the disclosed embodiment, the switch valve 41 may be a two-position two-way reversing valve, a regulating valve, a stop valve or other valve components that can control switching.

[0075] Optionally, the test system further includes a heat conducting member 5, which is located in the heating furnace 3. The heat conducting member 5 is connected to the switch valve 41, and the heat conducting member 5 has a sealed cavity 50 for accommodating liquid inside, and the sealed cavity 50 is connected to the hose 100 through the switch valve 41.

[0076] In the above implementation, since the heat conducting member 5 is located in the heating furnace 3, the heat conducting member 5 can be quickly heated up in the heating furnace 3. After the heat conducting member 5 is set in the test system, since the sealed cavity 50 in the heat conducting member 5 is connected with the inside of the hose 100, the heat conducting member 5 that heats up quickly can conduct heat to the fluid inside, so that the temperature of the liquid in the hose 100 quickly reaches the test temperature, thereby improving the detection efficiency.

[0077] Optionally, the heat conducting member 5 is a metal pipe with one end closed.

[0078] In the above implementation, the heat conductor 5 is set as a metal pipe, and the good thermal conductivity of the metal can be used to enable the heat conductor 5 to quickly conduct heat, so as to conduct heat to the heat conductor 5 and the fluid inside the hose 100, so that the liquid temperature in the hose 100 quickly reaches the test temperature, thereby improving the detection efficiency.

[0079] Exemplarily, the heat conducting member 5 is a copper tube, wherein one end of the copper tube is connected to the outlet of the switch valve 41 , and the other end of the copper tube is closed by a plug.

[0080] In this way, the heat conducting member 5 can have good heat conducting performance, and at the same time, a closed cavity 50 can be formed inside the heat conducting member 5 .

[0081] In other examples, the heat conducting member 5 may also be other structures, such as a heat conducting sheet or a heat conducting block having a cavity inside.

[0082] The heat conducting member 5 may also be made of other materials, such as aluminum alloy or other structural members.

[0083] Optionally, the test system further includes a control unit 6, which is electrically connected to the reversing valve 22, the temperature sensor 25, the pressure sensor 24, the test pump 1 and the heating furnace 3. The control unit 6 can adjust the heating temperature of the heating furnace 3, the opening size of the reversing valve 22 and the output pressure of the test pump 1 according to the detection values ​​of the temperature sensor 25 and the pressure sensor 24, until the liquid pressure and temperature in the hose 100 meet the test requirements.

[0084] In the above implementation, a control unit 6 is provided in the test system, and the test pump 1, the heating furnace 3 and the reversing valve 22 can be automatically controlled by the control unit 6, thereby avoiding manual operation and improving the safety of the test.

[0085] Exemplarily, the control unit 6 may be any device provided with a programmable logic controller, such as an industrial computer, a single-chip microcomputer, and the like.

[0086] When in use, a program is pre-set inside the control unit 6, and the control unit 6 automatically controls the test pump 1, the heating furnace 3, the reversing valve 22, etc. according to the set program, which greatly improves the automation level of the test system, while avoiding manual control and improving the safety of the entire test system during the test process.

[0087] On the other hand, the present disclosure also provides a method for testing the high temperature and high pressure resistance of a hose. Figure 3 As shown, the test methods include:

[0088] S301: Connect the hose to be tested to the test system.

[0089] The test system mentioned above is the test system described above. The specific structure of the test system can be referred to the above description, which will not be repeated here.

[0090] S302: Start the heating furnace in the test system to place the hose in a preset high temperature environment.

[0091] The heating furnace can heat the environment in which the hose is located, so that the hose is in a high temperature environment of 80-200°, and the heating time is 3-12h, so as to carry out high temperature resistance test.

[0092] S303: Start the test pump in the test system and control the pipe valve assembly to input liquid into the hose until the pressure in the hose reaches a preset pressure value.

[0093] The test pump can input liquid into the hose so that the pressure inside the hose is 1-10Mpa, thereby testing the high pressure resistance of the hose.

[0094] S304: Control the pipe valve assembly to maintain the pressure of the hose.

[0095] By maintaining the pressure of the hose, the hose can be maintained in a high temperature and high pressure environment for 5-24 hours, thereby verifying the high temperature and high pressure resistance of the hose.

[0096] If the hose 100 has good sealing performance and is not damaged after a certain time interval, it means that the hose 100 has good high temperature and high pressure resistance performance.

[0097] Optionally, when verifying the hose, the on-off between the hose 100 and the test pump can be controlled by controlling the reversing valve in the control pipe valve assembly. At the same time, by controlling the test pump 1, the pressure of the liquid entering the hose 100 can be controlled. At the same time, the temperature and pressure monitored in real time by the pressure sensor and the temperature sensor can be readjusted in turn to adjust the output conditions of the test pump and the on-off of the reversing valve, so that the hose 100 can be placed in an actual working environment.

[0098] Moreover, during actual testing of the hose, when the hose is in a high temperature environment, the pressure inside the hose changes, and the output conditions of the test pump 1 can be quickly adjusted so that the pressure of the hose 100 is not affected by the temperature inside the hose, thereby allowing the hose testing environment to truly simulate the actual working environment of the hose, further improving the testing effect.

[0099] In addition, in order to facilitate the automatic control of the above test method, a control unit can be connected to the test system to automatically control the input conditions of the test pump, heating furnace, and reversing valve, etc., so that the test process can be automatically operated, avoiding the need for human operation under high temperature and high pressure, and avoiding personal injury during the test.

[0100] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A high temperature and high pressure resistance test system for a hose, characterized in that: The test system comprises a test pump (1), a pipe valve assembly (2), a heating furnace (3) and a plugging assembly (4); The pipe valve assembly (2) is respectively connected to the outlet of the test pump (1) and one end of the hose (100) to be tested, and the pipe valve assembly (2) is used to input pressure liquid into the hose (100) and monitor the pressure and temperature in the hose (100); The heating furnace (3) is used to accommodate the hose (100); The blocking component (4) is connected to the other end of the hose (100) to block the hose (100).

2. The test system according to claim 1, characterized in that: The pipe-valve assembly (2) comprises a first connecting pipe body (21), a reversing valve (22) and a second connecting pipe body (23); the first connecting pipe body (21) and the reversing valve (22) are both located outside the heating furnace (3), and the second connecting pipe body (23) is located inside the heating furnace (3); One end of the first connecting pipe body (21) is connected to the outlet of the test pump (1), the other end of the first connecting pipe body (21) is connected to the liquid inlet of the reversing valve (22), the liquid outlet of the reversing valve (22) is connected to one end of the second connecting pipe body (23), and the other end of the second connecting pipe body (23) is connected to one end of the hose (100).

3. The test system according to claim 2, characterized in that: The second connecting pipe body (23) is a metal pipe.

4. The test system according to claim 2, characterized in that: The pipe valve assembly (2) further comprises a pressure sensor (24) and a temperature sensor (25), wherein the pressure sensor (24) and the temperature sensor (25) are connected in the second connecting pipe body (23) at intervals.

5. The test system according to claim 2, characterized in that: The pipe valve assembly (2) further comprises an overflow valve (26), wherein the overflow valve (26) is located between the test pump (1) and the first connecting pipe body (21), and the liquid inlet of the overflow valve (26) is respectively connected to the outlet of the test pump (1) and one end of the first connecting pipe body (21), the liquid outlet of the overflow valve (26) is connected to a liquid recovery device, and the control port of the overflow valve (26) is connected to its own liquid outlet.

6. The test system according to any one of claims 1 to 5, characterized in that: The blocking component (4) is a switch valve (41), and the liquid inlet of the switch valve (41) is connected to the hose (100).

7. The test system according to claim 6, characterized in that: The test system further comprises a heat conducting member (5), wherein the heat conducting member (5) has a sealed cavity (50) inside, and the sealed cavity (50) is connected to the outlet of the switch valve (41).

8. The test system according to claim 7, characterized in that: The heat conducting member (5) is a metal pipe.

9. The test system according to claim 4, characterized in that: The test system further comprises a control unit (6), wherein the control unit (6) is electrically connected to the reversing valve (22), the temperature sensor (25), the pressure sensor (24) and the heating furnace (3), respectively, and the control unit (6) is used to adjust the heating temperature of the heating furnace (3), the opening size of the reversing valve (22) and the output pressure of the test pump (1) according to the detection values ​​of the temperature sensor (25) and the pressure sensor (24).

10. A method for testing the high temperature and high pressure resistance of a hose, characterized in that: The test method includes: Connecting the hose to be tested to a test system, wherein the test system is the test system according to any one of claims 1 to 9; Starting the heating furnace in the test system so that the hose is in a preset high temperature environment; Starting the test pump in the test system and controlling the pipe valve assembly to input liquid into the hose until the pressure in the hose reaches a preset pressure value; The pipe valve assembly is controlled to maintain the pressure of the hose.

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