High-temperature and high-pressure valve test system

Abstract

A high-temperature and high-pressure valve test system belongs to the technical field of valve detection. The utility model relates to a steam water pressure stabilizing system, which comprises a steam water pressure stabilizing system, a balancing system, a cooling system, a heating system, a test loop system, a circulating system and a water adjusting system, and a water adjusting port of the steam water pressure stabilizing system is connected with a first water inlet and a first water outlet of the water adjusting system through a pipeline. An external supply port of the steam water pressure stabilizing system, a balance inlet of the balance system, a cooling inlet of the cooling system, a heating inlet of the heating system, a test inlet of the test loop system and a circulation outlet of the circulation system are communicated with one another through pipelines, and a balance port of the steam water pressure stabilizing system is connected with a balance outlet of the balance system through a pipeline. A cooling outlet of the cooling system, a heating outlet of the heating system, a test outlet of the test loop system and a circulation inlet of the circulation system are simultaneously communicated with a second water inlet and outlet of the water adjusting system through pipelines. The device can support large-scale complex working condition simulation tests.

Description

Technical Field

[0001] This utility model belongs to the field of valve testing technology, and specifically relates to a high-temperature and high-pressure valve testing system. Background Technology

[0002] Conventional valve testing equipment mostly performs tests under varying pressure conditions at room temperature. It lacks a systematic capability to simulate operating conditions for valves operating at high temperatures and pressures, particularly in achieving complete online switching of vapor-liquid media, pressure, and flow direction. To improve the reliability of complex operating condition simulation tests and strengthen experimental verification support for the research and development of high-temperature and high-pressure valves, there is a current need to design a testing system with operating condition simulation capabilities for high-temperature and high-pressure valves. Utility Model Content

[0003] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a high-temperature and high-pressure valve testing system. This invention can support large-scale and complex working condition simulation tests and can be extended to simultaneous testing of multiple valves in parallel, meeting the testing requirements of different valve diameters and different task profiles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] This utility model provides a high-temperature and high-pressure valve testing system, including a steam-water stabilization system, a balancing system, a cooling system, a heating system, a test loop system, a circulation system, and a water regulating system. The system is characterized in that the water regulating port of the steam-water stabilization system is connected to the first inlet and outlet of the water regulating system via pipelines; the external supply port of the steam-water stabilization system, the balancing inlet of the balancing system, the cooling inlet of the cooling system, the heating inlet of the heating system, the test inlet of the test loop system, and the circulation outlet of the circulation system are interconnected via pipelines; the balancing port of the steam-water stabilization system is connected to the balancing outlet of the balancing system via pipelines; the cooling outlet of the cooling system, the heating outlet of the heating system, the test outlet of the test loop system, and the circulation inlet of the circulation system are simultaneously interconnected with the second inlet and outlet of the water regulating system via pipelines; a circulation regulating outlet valve is installed on the pipeline leading out of the circulation outlet of the circulation system; a circulation regulating inlet valve and a circulation regulating flow meter are installed on the pipeline leading out of the circulation inlet of the circulation system; and the high-pressure differential outlet of the test loop system is connected to a high-pressure differential test pipeline equipped with a high-pressure differential valve assembly.

[0006] Furthermore, the steam-water pressure stabilization system includes a pressure regulator, a balance vessel, a volume pressure transmitter, a volume temperature transmitter, a heater group, a first branch valve, a main control valve, and a second branch valve. The balance vessel, the volume pressure transmitter, and the volume temperature transmitter are arranged on the side of the pressure regulator. The heater group is horizontally installed on the side wall of the pressure regulator, and the heating part of the heater group extends into the interior of the pressure regulator. The lower end of the pressure regulator is connected to the side via a pipeline, and the main control valve, the second branch valve, and the first branch valve are arranged sequentially thereon. The main control valve and the second branch valve are also connected to the water regulating port via a pipeline. The second branch valve and the first branch valve are also connected to the external supply port via a pipeline. The top of the pressure regulator is connected to the balance port via a pipeline. The top of the pressure regulator is also connected to a nitrogen source pipeline, an exhaust pipeline, and a tail gas venting pipeline. The bottom of the pressure regulator is also connected to a test drain pipeline with a manual drain valve group.

[0007] Furthermore, the balancing system includes a shut-off valve and a quick-opening valve. One end of the shut-off valve is connected to one end of the quick-opening valve via a pipeline, the other end of the shut-off valve is connected to the balancing outlet via a pipeline, and the other end of the quick-opening valve is connected to the balancing inlet via a pipeline.

[0008] Furthermore, the cooling system includes a cooler, a cooling inlet valve, and a cooling outlet valve. The cooler is connected to one end of the cooling inlet valve and one end of the cooling outlet valve via pipelines. The other end of the cooling inlet valve is connected to the cooling inlet via a pipeline, and the other end of the cooling outlet valve is connected to the cooling outlet via a pipeline. A flow meter, a thermometer, and a pressure gauge are connected to the pipeline between the cooler and the cooling inlet valve, and a thermometer is connected to the pipeline between the cooler and the cooling outlet valve.

[0009] Furthermore, the heating system includes a heater, a heating inlet valve, and a heating outlet valve. The heater is connected to one end of the heating inlet valve and one end of the heating outlet valve via pipelines. The other end of the heating inlet valve is connected to the heating inlet via a pipeline, and the other end of the heating outlet valve is connected to the heating outlet via a pipeline. A flow meter, a thermometer, and a pressure gauge are connected to the pipeline between the heater and the heating inlet valve, and a thermometer is connected to the pipeline between the heater and the heating outlet valve.

[0010] Furthermore, the test circuit system includes a pre-valve valve, an auxiliary heater, a test valve, and a post-valve valve. One end of the pre-valve valve is connected to the test inlet via a pipeline, and one end of the post-valve valve is connected to the test outlet via a pipeline. The other end of the pre-valve valve is connected to one end of the auxiliary heater via a pipeline, and the other end of the auxiliary heater is connected to one end of the test valve via a pipeline. The other end of the test valve is connected to the other end of the post-valve valve via a pipeline. A reverse outlet pipeline with a reverse outlet valve branches off from the pipeline between the pre-valve valve and the auxiliary heater. The reverse outlet pipeline is connected to the pipeline between the post-valve valve and the test outlet. A reverse inlet pipeline with a reverse inlet valve branches off from the pipeline between the pre-valve valve and the test inlet. The reverse inlet pipeline is connected to the pipeline between the test valve and the post-valve valve. A pipeline connecting the post-valve valve and the test outlet also branches off from the pipeline and connects to the high pressure differential outlet.

[0011] Furthermore, drainage and venting branches are provided on the pipeline between the upstream valve and the auxiliary heater, and on the pipeline between the valve under test and the downstream valve. A thermometer is provided on the auxiliary heater. A pressure gauge and a thermometer are provided on the pipeline between the auxiliary heater and the valve under test, and a pressure gauge and a thermometer are also provided on the pipeline between the valve under test and the downstream valve. A differential pressure gauge is connected between the two pipelines.

[0012] Furthermore, the circulation system includes a circulation pump and a circulation regulating valve. The circulation pump and the circulation regulating valve are connected in parallel to form a loop. One end of the parallel pipeline is connected to the circulation inlet, and the other end is connected to the circulation outlet. Pressure gauges and temperature gauges are installed on the pipelines at both ends of the circulation pump.

[0013] Furthermore, the water regulation system includes a first branch valve, a second branch valve, and a discharge valve assembly. One end of the first branch valve is connected to one end of the second branch valve via a pipeline, and the other end of the first branch valve is connected to the first inlet / outlet via a pipeline. The other end of the second branch valve is connected to the second inlet / outlet via a pipeline. The pipeline between the first branch valve and the second branch valve is also connected to a deionized water pipeline. The discharge valve assembly is located on the regulating pipeline connected to the deionized water pipeline.

[0014] The beneficial effects of this utility model.

[0015] This invention has main functions such as high temperature and high pressure water medium test, low temperature and high pressure water medium, steam medium, forward and reverse flow test, and significantly improved comprehensive testing capabilities. It can support large-scale complex working condition simulation test, and can be expanded to multi-valve parallel simultaneous test to meet the test requirements of different pipe diameters and different task profiles. Attached Figure Description

[0016] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the steam-water pressure stabilizing system of this utility model.

[0019] Figure 3 This is a schematic diagram of the balancing system of this utility model.

[0020] Figure 4 This is a schematic diagram of the cooling system of this utility model.

[0021] Figure 5 This is a schematic diagram of the heating system of this utility model.

[0022] Figure 6 This is a schematic diagram of the test circuit system of this utility model.

[0023] Figure 7 This is a schematic diagram of the circulation system of this utility model.

[0024] Figure 8 This is a schematic diagram of the water regulation system of this utility model.

[0025] The diagram shows the following markings: 1 for steam-water pressure stabilization system, 2 for balancing system, 3 for cooling system, 4 for heating system, 5 for test loop system, 6 for circulation system, 7 for water regulation system, 8 for water regulation port, 9 for first inlet / outlet, 10 for external supply port, 11 for balancing inlet, 12 for cooling inlet, 13 for heating inlet, 14 for test inlet, 15 for circulation outlet, 16 for balancing port, 17 for balancing outlet, 18 for cooling outlet, 19 for heating outlet, 20 for test outlet, 21 for circulation inlet, 22 for second inlet / outlet, 23 for circulation regulation outlet valve, 24 for circulation regulation inlet valve, 25 for circulation regulation flow meter, 26 for high pressure differential valve group, 27 for high pressure differential test pipeline, 28 for pressure stabilizer, 29 for balancing vessel, 30 for body pressure transmitter, and 31 for body temperature. 32 is the temperature transmitter, 33 is the heater group, 34 is the first branch valve, 35 is the main control valve, 36 is the second branch valve, 37 is the nitrogen source pipeline, 38 is the exhaust pipeline, 39 is the tail gas venting pipeline, 40 is the manual valve group, 41 is the test drainage pipeline, 42 is the shut-off valve, 43 is the quick-opening valve, 44 is the cooler, 45 is the cooling inlet valve, 46 is the heater, 47 is the heating inlet valve, 48 is the heating outlet valve, 49 is the valve before the valve, 50 is the auxiliary heater, 51 is the valve under test, 52 is the valve after the valve, 53 is the reverse outlet valve, 54 is the reverse inlet valve, 55 is the circulating pump, 56 is the circulating regulating valve, 57 is the first branch valve, 58 is the second branch valve, 59 is the discharge valve group, 60 is the deionized water pipeline, and 61 is the high pressure differential outlet. Detailed Implementation

[0026] Combined with appendix Figure 1 As shown, this embodiment provides a high-temperature and high-pressure valve testing system, including a steam-water pressure stabilization system 1, a balancing system 2, a cooling system 3, a heating system 4, a test circuit system 5, a circulation system 6, and a water conditioning system 7.

[0027] The water regulating port 8 of the steam-water stabilizing system 1 is connected to the first inlet / outlet 9 of the water regulating system 7 via pipelines. The external supply port 10 of the steam-water stabilizing system 1, the balance inlet 11 of the balance system 2, the cooling inlet 12 of the cooling system 3, the heating inlet 13 of the heating system 4, the test inlet 14 of the test circuit system 5, and the circulation outlet 15 of the circulation system 6 are interconnected via pipelines. The balance port 16 of the steam-water stabilizing system 1 is connected to the balance outlet 17 of the balance system 2 via pipelines. The cooling outlet 18 of the cooling system 3, the heating outlet 19 of the heating system 4, the test outlet 20 of the test circuit system 5, and the circulation inlet 21 of the circulation system 6 are simultaneously interconnected with the second inlet / outlet 22 of the water regulating system 7 via pipelines. A circulation regulating outlet valve 23 is installed on the pipeline connected to the circulation outlet 15 of the circulation system 6, and a circulation regulating inlet valve 24 and a circulation regulating flow meter 25 are installed on the pipeline connected to the circulation inlet 21 of the circulation system 6, thus constituting a complete valve test system.

[0028] The high pressure source formed by the steam-water pressure stabilization system 1 and the circulating low pressure difference formed by the circulation system 6 together provide energy support for the operation of the system. The high pressure difference test pipeline 27 with a high pressure difference valve group 26 is connected to the high pressure difference outlet 61 of the test loop system 5 for conducting high pressure difference tests.

[0029] Combined with appendix Figure 2 As shown, the steam-water pressure stabilization system includes a pressure regulator 28, a balance vessel 29, a volume pressure transmitter 30, a volume temperature transmitter 31, a heater group 32, a first branch valve 33, a main control valve 34, and a second branch valve 35.

[0030] A balance container 29, a volume pressure transmitter 30, and a volume temperature transmitter 31 are installed on the side of the pressure stabilizer 28. A heater assembly 32 is horizontally installed on the side wall of the pressure stabilizer 28, with the heating part of the heater assembly 32 extending into the interior of the pressure stabilizer 28. The lower end of the pressure stabilizer 28 is connected to the side via a pipeline and is sequentially equipped with a main control valve 34, a second branch valve 35, and a first branch valve 33. The main control valve 34 and the second branch valve 35 are also connected to a water regulating port 8 via a pipeline, and the second branch valve 35 and the first branch valve 33 are also connected to an external supply port 10 via a pipeline. The top of the pressure stabilizer 28 is connected to a balance port 16 via a pipeline. The top of the pressure stabilizer 28 is also connected to a nitrogen source pipeline 36, an exhaust pipeline 37, and a tail gas venting pipeline 38. The bottom of the pressure stabilizer 28 is also connected to a test drain pipeline 40 with a manual drain valve assembly 39.

[0031] The main function of the steam-water pressure stabilization system 1 is to prepare and provide a large-capacity, stable water medium at a set temperature and pressure, or a saturated steam medium at a set temperature and pressure, or for pressure stabilization of the test loop system 5, after the pressure stabilizer 28 is filled with water, using the heater group 32. The water medium is supplied to the test loop system 5 from the external supply port 10 through the control of the second branch valve 35, and the steam medium is supplied to the test loop system 5 from the external supply port 10 through the control of the first branch valve 33. The balance vessel 29, the volume pressure transmitter 30, and the volume temperature transmitter 31 form a liquid level measuring device, and the liquid level is interlocked with the heater group 32 to prevent dry burning. The pressure stabilizer 28 is equipped with a safety valve, an air supply port, an exhaust port, and pipe root valves. The main control valve 34, in conjunction with the pipe root valves, isolates the pressure stabilizer 28. The manual drain valve group 39 and the test drain pipe 40 are used for system test drainage.

[0032] Combined with appendix Figure 3 As shown, the balancing system 2 includes a shut-off valve 41 and a quick-opening valve 42. One end of the shut-off valve 41 is connected to one end of the quick-opening valve 42 through a pipeline, and the other end of the shut-off valve 41 is connected to the balancing outlet 17 through a pipeline. The other end of the quick-opening valve 42 is connected to the balancing inlet 11 through a pipeline.

[0033] The balancing system 2 regulates the balance of the entire test system and reduces unexpected vibrations. When it is necessary to adjust the overall balance of the test system, the quick-opening valve 42 opens, and the shut-off valve 41 closes the auxiliary valve.

[0034] Combined with appendix Figure 4 As shown, the cooling system 3 includes a cooler 43, a cooling inlet valve 44, and a cooling outlet valve 45. The cooler 43 is connected to one end of the cooling inlet valve 44 and one end of the cooling outlet valve 45 through pipelines. The other end of the cooling inlet valve 44 is connected to the cooling inlet 12 through a pipeline, and the other end of the cooling outlet valve 45 is connected to the cooling outlet 18 through a pipeline. A flow meter, a thermometer, and a pressure gauge are connected to the pipeline between the cooler 43 and the cooling inlet valve 44, and a thermometer is connected to the pipeline between the cooler 43 and the cooling outlet valve 45.

[0035] The main function of cooling system 3 is to cool and reduce temperature. When cooling is required, cooling inlet valve 44 is opened according to flow rate and temperature regulation. When the system is running, cooling outlet valve 45 remains open to reduce unnecessary pressure difference in the system.

[0036] Combined with appendix Figure 5As shown, the heating system 4 includes a heater 46, a heating inlet valve 47, and a heating outlet valve 48. The heater 46 is connected to one end of the heating inlet valve 47 and one end of the heating outlet valve 48 through pipelines. The other end of the heating inlet valve 47 is connected to the heating inlet 13 through a pipeline, and the other end of the heating outlet valve 48 is connected to the heating outlet 19 through a pipeline. A flow meter, a thermometer, and a pressure gauge are connected to the pipeline between the heater 46 and the heating inlet valve 47, and a thermometer is connected to the pipeline between the heater 46 and the heating outlet valve 48.

[0037] The main function of heating system 4 is to heat the system pipeline when steam-water pressure stabilization system 1 is used for simple pressure stabilization. When heating is required, heating inlet valve 47 is opened according to flow rate and temperature regulation. During system operation, heating outlet valve 48 remains open to reduce unnecessary pressure difference in the system.

[0038] Combined with appendix Figure 6 As shown, the test circuit system 5 includes a pre-valve 49, an auxiliary heater 50, a test valve 51, and a post-valve 52. One end of the pre-valve 49 is connected to the test inlet 14 via a pipeline, and one end of the post-valve 52 is connected to the test outlet 20 via a pipeline. The other end of the pre-valve 49 is connected to one end of the auxiliary heater 50 via a pipeline, and the other end of the auxiliary heater 50 is connected to one end of the test valve 51 via a pipeline. The other end of the test valve 51 is connected to the other end of the post-valve 52 via a pipeline.

[0039] A reverse outlet pipeline with a reverse outlet valve 53 branches off from the pipeline between the upstream valve 49 and the auxiliary heater 50. The reverse outlet pipeline is connected to the pipeline between the downstream valve 52 and the test outlet 20. A reverse inlet pipeline with a reverse inlet valve 54 branches off from the pipeline between the upstream valve 49 and the test inlet 14. The reverse inlet pipeline is connected to the pipeline between the test valve 51 and the downstream valve 52. A pipeline connecting the downstream valve 52 and the test outlet 20 also branches off to the high pressure differential outlet 61.

[0040] Drainage and venting branches are provided on the pipeline between the upstream valve 49 and the auxiliary heater 50, and on the pipeline between the test valve 51 and the downstream valve 52. A thermometer is installed on the auxiliary heater 50. A pressure gauge and a thermometer are installed on the pipeline between the auxiliary heater 50 and the test valve 51. A pressure gauge and a thermometer are also installed on the pipeline between the test valve 51 and the downstream valve 52. A differential pressure gauge is connected between the two pipelines.

[0041] Combined with appendix Figure 7As shown, the circulation system 6 includes a circulation pump 55 and a circulation regulating valve 56. The circulation pump 55 and the circulation regulating valve 56 are connected in parallel to form a loop. One end of the parallel pipeline is connected to the circulation inlet 21, and the other end is connected to the circulation outlet 15. Pressure gauges and temperature gauges are installed on the pipelines at both ends of the circulation pump 55.

[0042] The main function of the circulation system 6 is to circulate the water medium in the system. When the circulation system 6 is started, the circulation pump 55 runs continuously. The output flow of the circulation system 6 is adjusted by adjusting the opening of the circulation regulating valve 56.

[0043] Combined with appendix Figure 8 As shown, the water regulating system 7 includes a first branch valve 57, a second branch valve 58, and a discharge valve group 59. One end of the first branch valve 57 is connected to one end of the second branch valve 58 through a pipeline, and the other end of the first branch valve 57 is connected to the first inlet / outlet 9 through a pipeline. The other end of the second branch valve 58 is connected to the second inlet / outlet 22 through a pipeline. The pipeline between the first branch valve 57 and the second branch valve 58 is also connected to the deionized water pipeline 60. The discharge valve group 59 is installed on the regulating pipeline connected to the deionized water pipeline.

[0044] The main functions of the water regulation system 7 are to regulate water supply and drainage, and to regulate the water circulation of the pressure regulator 28.

[0045] The functions of this high-temperature and high-pressure valve testing system are mainly divided into two parts:

[0046] I. High-temperature and high-pressure water medium test, high-temperature and high-pressure water medium test to low-temperature and high-pressure water medium test, low-temperature and high-pressure to high-temperature and high-pressure water medium test, steam medium test.

[0047] 1. High-Temperature and High-Pressure Water Medium Test: The system is filled with water and vented. The balancing system 2, cooling system 3, heating system 4, and second branch valve 35 are shut down, forming two intersecting circulation loops driven by the circulating pump 55. Intersecting loop one: the outlet of the circulating pump 55 flows through the circulation regulating outlet valve 23, the test loop system 5, the circulation regulating inlet valve 24, and the circulation regulating flow meter 25, returning to the circulating pump 55. Intersecting loop two: the outlet of the circulating pump 55 flows through the circulation regulating outlet valve 23, the first branch valve 33, the pressure regulator 28, the main control valve 34, the water regulating system 7, and the circulation regulating flow meter 25, returning to the circulating pump 55. The circulating pump 55 starts, and the pressure regulator 28 heats up, ensuring that the medium in the test loop is consistent with the medium below the pressure regulator 28. Once the test medium meets the requirements, the high-temperature and high-pressure water medium test can be carried out.

[0048] 2. High-temperature and high-pressure water medium to low-temperature and high-pressure water medium test: Based on the high-temperature and high-pressure water medium test, close the second branch valve 58 and the first branch valve 33 to cut off the intersecting loop two, so that the medium in the pressure regulator 28 does not participate in the system circulation. Open the second branch valve 35 to connect the pressure regulator 28 with the test loop system 5, and the pressure regulator 28 maintains its pressure stabilizing function. Open the cooling inlet valve 44 and the cooler 43 to allow the cooling system 3 to participate in the circulation and cooling of the test loop system 5, reducing the temperature to the test temperature. If the test medium meets the requirements, the low-temperature and high-pressure water medium test can be carried out.

[0049] 3. Low-temperature high-pressure to high-temperature high-pressure water medium test: Based on the low-temperature high-pressure water medium test, close the cooling inlet valve 44 to isolate the cooling system 3. Turn on the power to the heating inlet valve 47 and heater 46, so that the heating system 4 participates in the test loop system 5 for circulating heating, raising the temperature to the test temperature. If the test medium meets the requirements, the low-temperature high-pressure to high-temperature high-pressure conversion is completed, and the high-temperature high-pressure water medium test can be further carried out.

[0050] 4. Steam Medium Test: The system is filled with water and vented. The balancing system 2, cooling system 3, heating system 4, first branch valve 33, and second branch valve 58 are closed, allowing the circulating pump 55 to drive only the test loop system 5. The auxiliary heater 50 is powered on to preheat the test loop system 5. The pressure regulator 28 is connected to the test loop system 5 via the second branch valve 35 to maintain consistent pressure. The heater 46 inside the pressure regulator 28 is powered on to prepare steam. When the steam parameters meet the test requirements, the circulating regulating outlet valve 23 and circulating regulating inlet valve 24 are closed to stop preheating circulation and auxiliary heating. The second branch valve 35 is closed, the first branch valve 33 is opened, the upstream valve 49 is opened, the downstream valve 52 is opened, the test valve 51 is opened, and the high-pressure differential valve group 26 is slowly opened, allowing steam to flow from the pressure regulator tank through the test valve 51 and pipeline. The preheated water is slowly discharged from the high-pressure differential valve group 26. At this point, the test loop system 5 is filled with steam and the steam test can be performed.

[0051] II. Tests of Forward and Reverse Flow of the Test Medium in the Test Valve: During the forward flow test of the test valve 51, the reverse outlet valve 53 and the reverse inlet valve 54 are closed. During the reverse flow test, the reverse outlet valve 53 and the reverse inlet valve 54 are open, and the upstream valve 49 and the downstream valve 52 are closed, allowing the test medium to enter from the test inlet 14, flow through the reverse inlet valve 54, flow in the reverse direction through the test valve 51, flow through the reverse outlet valve 53, and flow through the test outlet 20, thus achieving an online reverse flow test.

[0052] The high-temperature and high-pressure valve testing system also has other derivative testing functions such as nitrogen pressure stabilization test, flow test, mixed gas test, and steam-water mixture test.

[0053] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. A high-temperature and high-pressure valve testing system, comprising a steam-water pressure stabilization system (1), a balancing system (2), a cooling system (3), a heating system (4), a test loop system (5), a circulation system (6), and a water conditioning system (7), characterized in that, The water regulating port (8) of the steam-water stabilizing system (1) is connected to the first inlet / outlet (9) of the water regulating system (7) via a pipeline. The external supply port (10) of the steam-water stabilizing system (1), the balance inlet (11) of the balance system (2), the cooling inlet (12) of the cooling system (3), the heating inlet (13) of the heating system (4), the test inlet (14) of the test loop system (5), and the circulation outlet (15) of the circulation system (6) are interconnected via pipelines. The balance port (16) of the steam-water stabilizing system (1) is connected to the balance outlet (17) of the balance system (2) via a pipeline. The cooling outlet of the cooling system (3) is connected to the balance outlet of the balance system (2). (18) The heating outlet (19) of the heating system (4), the test outlet (20) of the test loop system (5), and the circulation inlet (21) of the circulation system (6) are connected to the second inlet and outlet (22) of the water regulation system (7) through pipelines. A circulation regulating outlet valve (23) is provided on the pipeline connected to the circulation outlet (15) of the circulation system (6). A circulation regulating inlet valve (24) and a circulation regulating flow meter (25) are provided on the pipeline connected to the circulation inlet (21) of the circulation system (6). The high pressure differential outlet (61) of the test loop system (5) is connected to the high pressure differential test pipeline (27) with a high pressure differential valve group (26).

2. The high temperature and high pressure valve testing system of claim 1, wherein, The steam-water pressure stabilization system (1) includes a pressure regulator (28), a balance vessel (29), a volume pressure transmitter (30), a volume temperature transmitter (31), a heater group (32), a first branch valve (33), a main control valve (34), and a second branch valve (35). The balance vessel (29), the volume pressure transmitter (30), and the volume temperature transmitter (31) are arranged on the side of the pressure regulator (28). The heater group (32) is horizontally installed on the side wall of the pressure regulator (28). The heating part of the heater group (32) extends into the interior of the pressure regulator (28). The lower end of the pressure regulator (28) is connected to the side via a pipeline, and the main control valve is arranged sequentially thereon. (34), the second branch valve (35) and the first branch valve (33), the main control valve (34) and the second branch valve (35) are also connected to the water regulating port (8) through a pipeline, the second branch valve (35) and the first branch valve (33) are also connected to the external supply port (10) through a pipeline, the top of the pressure stabilizer (28) is connected to the balance port (16) through a pipeline, the top of the pressure stabilizer (28) is also connected to the nitrogen source pipeline (36), the exhaust pipeline (37) and the tail gas venting pipeline (38), and the bottom of the pressure stabilizer (28) is also connected to the debugging drainage pipeline (40) with a manual drain valve group (39).

3. The high temperature high pressure valve testing system of claim 1, wherein, The balancing system (2) includes a shut-off valve (41) and a quick-opening valve (42). One end of the shut-off valve (41) is connected to one end of the quick-opening valve (42) through a pipeline. The other end of the shut-off valve (41) is connected to the balancing outlet (17) through a pipeline. The other end of the quick-opening valve (42) is connected to the balancing inlet (11) through a pipeline.

4. The high temperature, high pressure valve testing system of claim 1, wherein, The cooling system (3) includes a cooler (43), a cooling inlet valve (44), and a cooling outlet valve (45). The cooler (43) is connected to one end of the cooling inlet valve (44) and one end of the cooling outlet valve (45) through pipelines. The other end of the cooling inlet valve (44) is connected to the cooling inlet (12) through a pipeline. The other end of the cooling outlet valve (45) is connected to the cooling outlet (18) through a pipeline. A flow meter, a thermometer, and a pressure gauge are connected on the pipeline between the cooler (43) and the cooling inlet valve (44). A thermometer is connected on the pipeline between the cooler (43) and the cooling outlet valve (45).

5. The high temperature, high pressure valve testing system of claim 1, wherein, The heating system (4) includes a heater (46), a heating inlet valve (47), and a heating outlet valve (48). The heater (46) is connected to one end of the heating inlet valve (47) and one end of the heating outlet valve (48) through pipelines. The other end of the heating inlet valve (47) is connected to the heating inlet (13) through a pipeline. The other end of the heating outlet valve (48) is connected to the heating outlet (19) through a pipeline. A flow meter, a thermometer, and a pressure gauge are connected on the pipeline between the heater (46) and the heating inlet valve (47). A thermometer is connected on the pipeline between the heater (46) and the heating outlet valve (48).

6. The high temperature, high pressure valve testing system of claim 1, wherein, The test circuit system (5) includes a pre-valve valve (49), an auxiliary heater (50), a test valve (51), and a post-valve valve (52). One end of the pre-valve valve (49) is connected to the test inlet (14) via a pipeline, and one end of the post-valve valve (52) is connected to the test outlet (20) via a pipeline. The other end of the pre-valve valve (49) is connected to one end of the auxiliary heater (50) via a pipeline, and the other end of the auxiliary heater (50) is connected to one end of the test valve (51) via a pipeline. The other end of the test valve (51) is connected to the other end of the post-valve valve (52) via a pipeline. 49) A reverse outlet pipeline with a reverse outlet valve (53) branches off from the pipeline between the auxiliary heater (50) and the test outlet (20). A reverse inlet pipeline with a reverse inlet valve (54) branches off from the pipeline between the upstream valve (49) and the test inlet (14). The reverse inlet pipeline is connected to the pipeline between the test valve (51) and the downstream valve (52). A pipeline connected to the high pressure differential outlet (61) also branches off from the pipeline between the downstream valve (52) and the test outlet (20).

7. The high temperature, high pressure valve testing system of claim 6, wherein, Drainage and exhaust branches are provided on the pipeline between the valve before valve (49) and the auxiliary heater (50), and on the pipeline between the valve under test (51) and the valve after valve (52). A thermometer is provided on the auxiliary heater (50). A pressure gauge and a thermometer are provided on the pipeline between the auxiliary heater (50) and the valve under test (51). A pressure gauge and a thermometer are also provided on the pipeline between the valve under test (51) and the valve after valve (52). A differential pressure gauge is connected between the two pipelines.

8. The high temperature, high pressure valve testing system of claim 1, wherein, The circulation system (6) includes a circulation pump (55) and a circulation regulating valve (56). The circulation pump (55) and the circulation regulating valve (56) are connected in parallel to form a loop. One end of the parallel pipeline is connected to the circulation inlet (21), and the other end is connected to the circulation outlet (15). Pressure gauges and temperature gauges are installed on the pipelines at both ends of the circulation pump (55).

9. The high temperature, high pressure valve testing system of claim 1, wherein, The water regulation system (7) includes a first branch valve (57), a second branch valve (58), and a discharge valve group (59). One end of the first branch valve (57) is connected to one end of the second branch valve (58) through a pipeline. The other end of the first branch valve (57) is connected to the first inlet / outlet (9) through a pipeline. The other end of the second branch valve (58) is connected to the second inlet / outlet (22) through a pipeline. The pipeline between the first branch valve (57) and the second branch valve (58) is also connected to the deionized water pipeline (60). The discharge valve group (59) is set on the regulating pipeline connected to the deionized water pipeline.

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