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 system 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] The present invention belongs to the technical field of valve detection, and in particular relates to a high-temperature and high-pressure valve testing system. Background Art

[0002] Conventional valve testing equipment mostly tests valves at room temperature and under different pressure conditions. They lack the ability to systematically simulate the operating conditions of valves operating in high-temperature and high-pressure conditions. In particular, they are unable to achieve complete online switching of gas-liquid media, pressure, and flow direction. To improve the reliability of complex operating condition simulation tests and strengthen the test verification support for the development of high-temperature and high-pressure valves, a test system with the ability to simulate operating conditions for high-temperature and high-pressure valves is currently needed. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned problems, make up for the deficiencies of the existing technology, and provide a high-temperature and high-pressure valve testing system; the present invention can support large-scale complex working condition simulation tests, and can expand the simultaneous testing of multiple valves in parallel to meet the test requirements of different diameters and different task profiles.

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

[0005] The present invention provides a high-temperature and high-pressure valve testing system, comprising a steam water pressure stabilizing system, a balancing system, a cooling system, a heating system, a test loop system, a circulation system and a water regulating system, characterized in that the water regulating port of the steam water pressure stabilizing system is connected to the first water inlet and outlet connected to the water regulating system through a pipeline, the external supply port of the steam water pressure stabilizing 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 through a pipeline, the balancing port of the steam water pressure stabilizing system is connected to the balancing outlet of the balancing system through a pipeline, 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 water inlet and outlet of the water regulating system through a pipeline, a circulation regulating outlet valve is provided on the pipeline connected to the circulation outlet of the circulation system, a circulation regulating inlet valve and a circulation regulating flowmeter are provided on the pipeline connected to the circulation inlet of the circulation system, and the high pressure difference outlet of the test loop system is connected to a high pressure difference test pipeline having a high pressure difference valve group.

[0006] Furthermore, the steam water pressure stabilizing system includes a pressurizer, a balancing container, a body pressure transmitter, a body temperature transmitter, a heater group, a first branch valve, a main control valve and a second branch valve. The balancing container, the body pressure transmitter and the body temperature transmitter are arranged on the side of the pressurizer. The heater group is horizontally installed on the side wall of the pressurizer, and the heating part of the heater group extends into the interior of the pressurizer. The lower end of the pressurizer is connected to the side through a pipeline and the main control valve, the second branch valve and the first branch valve are arranged in sequence. The main control valve and the second branch valve are also connected to the water regulating port through a pipeline, and the second branch valve and the first branch valve are also connected to the external supply port through a pipeline. The top of the pressurizer is connected to the balancing port through a pipeline. The top of the pressurizer is also connected to a nitrogen source pipeline, an exhaust pipeline and an exhaust gas discharge pipeline. The bottom of the pressurizer is also connected to a debugging drainage pipeline with a manual valve group.

[0007] Furthermore, the balancing system includes a stop valve and a quick-opening valve, one end of the stop valve is connected to one end of the quick-opening valve through a pipeline, the other end of the stop valve is connected to the balancing outlet through a pipeline, and the other end of the quick-opening valve is connected to the balancing inlet through 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 through pipelines respectively, the other end of the cooling inlet valve is connected to the cooling inlet through a pipeline, and the other end of the cooling outlet valve is connected to the cooling outlet through 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 through pipelines respectively, the other end of the heating inlet valve is connected to the heating inlet through a pipeline, and the other end of the heating outlet valve is connected to the heating outlet through 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 loop 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 through a pipeline, one end of the post-valve valve is connected to the test outlet through a pipeline, the other end of the pre-valve valve is connected to one end of the auxiliary heater through a pipeline, the other end of the auxiliary heater is connected to one end of the test valve through a pipeline, and the other end of the test valve is connected to the other end of the post-valve valve through a pipeline, a reverse outlet pipeline with a reverse outlet valve is branched out 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 is branched out 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, and a pipeline connected to the high pressure difference outlet is also branched out from the pipeline between the post-valve valve and the test outlet.

[0011] Furthermore, drainage and exhaust branches are provided on the pipeline between the pre-valve valve and the auxiliary heater, and on the pipeline between the test valve and the post-valve valve. A temperature gauge is provided on the auxiliary heater, and a pressure gauge and a temperature gauge are provided on the pipeline between the auxiliary heater and the test valve, and on the pipeline between the test valve and the post-valve valve, and 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 provided on the pipelines at both ends of the circulation pump.

[0013] Furthermore, the water regulating system includes a first branch valve, a second branch valve and a discharge valve group, one end of the first branch valve is connected to one end of the second branch valve through a pipeline, the other end of the first branch valve is connected to the first water inlet and outlet through a pipeline, the other end of the second branch valve is connected to the second water inlet and outlet through a pipeline, the pipeline between the first branch valve and the second branch valve is also connected to the deionized water pipeline, and the discharge valve group is arranged on the regulating pipeline connected to the deionized water pipeline.

[0014] Beneficial effects of the present invention.

[0015] The present invention has the main functions of high-temperature and high-pressure water medium testing, low-temperature and high-pressure water medium testing, steam medium testing, forward and reverse flow testing, etc. The comprehensive testing capability is significantly improved, and it can support large-scale and complex working condition simulation tests, and can expand the simultaneous testing of multiple valves in parallel to meet the test requirements of different diameters and different task profiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is 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 only used to explain the present invention and are not intended to limit the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the steam water pressure stabilizing system of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the balancing system of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the cooling system of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the heating system of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the test loop system of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the circulation system of the present invention.

[0024] Figure 8 It is a structural schematic diagram of the water regulation system of the present invention.

[0025] Markings in the figure: 1 is the steam water pressure stabilizing system, 2 is the balancing system, 3 is the cooling system, 4 is the heating system, 5 is the test loop system, 6 is the circulation system, 7 is the water regulating system, 8 is the water regulating port, 9 is the first water inlet and outlet, 10 is the external supply port, 11 is the balancing inlet, 12 is the cooling inlet, 13 is the heating inlet, 14 is the test inlet, 15 is the circulation outlet, 16 is the balancing port, 17 is the balancing outlet, 18 is the cooling outlet, 19 is the heating outlet, 20 is the test outlet, 21 is the circulation inlet, 22 is the second water inlet and outlet, 23 is the circulation regulating outlet valve, 24 is the circulation regulating inlet valve, 25 is the circulation regulating flowmeter, 26 is the high pressure difference valve group, 27 is the high pressure difference test pipeline, 28 is the pressure regulator, 29 is the balancing container, 30 is the body pressure transmitter, 31 is the body temperature Temperature transmitter, 32 is the heater group, 33 is the first branch valve, 34 is the main control valve, 35 is the second branch valve, 36 is the nitrogen source pipeline, 37 is the exhaust pipeline, 38 is the exhaust gas discharge pipeline, 39 is the manual valve group, 40 is the debugging drainage pipeline, 41 is the stop valve, 42 is the quick opening valve, 43 is the cooler, 44 is the cooling inlet valve, 45 is the cooling outlet 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 test valve, 52 is the valve after the valve, 53 is the reverse outlet valve, 54 is the reverse inlet valve, 55 is the circulation pump, 56 is the circulation 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 difference outlet. DETAILED DESCRIPTION

[0026] Combined with attachment 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 loop system 5, a circulation system 6 and a water regulation system 7.

[0027] The water regulating port 8 of the steam water pressure stabilizing system 1 is connected to the first water inlet and outlet 9 connected to the water regulating system 7 through a pipeline, the external supply port 10 of the steam water pressure stabilizing system 1, the balancing inlet 11 of the balancing 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 through pipelines, the balancing port 16 of the steam water pressure stabilizing system 1 is connected to the balancing outlet 17 of the balancing system 2 through a pipeline, 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 loop system 5, and the circulation inlet 21 of the circulation system 6 are simultaneously interconnected with the second water inlet and outlet 22 of the water regulating 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, and a circulation regulating inlet valve 24 and a circulation regulating flowmeter 25 are provided on the pipeline connected to the circulation inlet 21 of the circulation system 6, forming a complete valve test system.

[0028] The high pressure source formed by the steam water pressure stabilizing system 1 and the circulating low pressure difference formed by the circulation system 6 jointly provide energy support for the operation of the system, and a 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 performing high pressure difference tests.

[0029] Combined with attachment Figure 2 As shown, the steam water pressure stabilizing system includes a pressure stabilizer 28, a balancing container 29, a body pressure transmitter 30, a body 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 balancing vessel 29, a pressure transmitter 30, and a temperature transmitter 31 are installed on the side of the pressurizer 28. A heater group 32 is mounted horizontally on the side wall of the pressurizer 28, with the heating portion of the heater group 32 extending into the interior of the pressurizer 28. The lower end of the pressurizer 28 is connected to the side via piping and houses a main control valve 34, a second branch valve 35, and a first branch valve 33. A pipeline connects the main control valve 34 and the second branch valve 35 to the water regulating port 8, and a pipeline connects the second branch valve 35 and the first branch valve 33 to the external supply port 10. The top of the pressurizer 28 is connected to the balancing port 16 via piping. A nitrogen source pipeline 36, an exhaust pipeline 37, and an exhaust gas discharge pipeline 38 are also connected to the top of the pressurizer 28. A commissioning drain pipeline 40 with a manual valve group 39 is also connected to the bottom of the pressurizer 28.

[0031] The steam-water pressure stabilization system 1 primarily functions to heat and provide a large volume of stable water medium at a set temperature and pressure, or saturated steam medium at a set temperature and pressure, after the pressurizer 28 is filled with water. The heater assembly 32 is used to heat and provide a stable, large volume of water medium at a set temperature and pressure, or saturated steam medium at a set temperature and pressure, or to stabilize the test loop system 5. Water medium is supplied to the test loop system 5 from the external supply port 10 via the control of the second branch valve 35, while steam medium is supplied to the test loop system 5 from the external supply port 10 via the control of the first branch valve 33. A balancing vessel 29, a pressure transmitter 30, and a temperature transmitter 31 form a liquid level measurement device, and the liquid level is interlocked with the heater assembly 32 to prevent dry heating. The upper side of the pressurizer 28 is equipped with a safety valve, air supply and exhaust ports, and a pipeline root valve. A master control valve 34, in conjunction with the pipeline root valves, isolates the pressurizer 28. A manual valve assembly 39 and a commissioning drain line 40 are used for system commissioning and drainage.

[0032] Combined with attachment Figure 3 As shown, the balancing system 2 includes a stop valve 41 and a quick-opening valve 42. One end of the stop valve 41 is connected to one end of the quick-opening valve 42 through a pipeline, the other end of the stop valve 41 is connected to the balancing outlet 17 through a pipeline, and 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 the overall balance of the test system needs to be adjusted, the quick-opening valve 42 is opened and the stop valve 41 is closed as an auxiliary valve.

[0034] Combined with attachment 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, respectively. 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 the cooling system 3 is cooling. When cooling is required, the cooling inlet valve 44 is opened according to the flow rate and temperature regulation. When the system is running, the cooling outlet valve 45 remains open to reduce unnecessary pressure difference in the system.

[0036] Combined with attachment 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 respectively. 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 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 primary function of heating system 4 is to heat the system piping when steam-water pressure stabilization system 1 is simply operating as a pressure regulator. When heating is required, heating inlet valve 47 opens according to flow rate and temperature. While the system is operating, heating outlet valve 48 remains open, reducing unnecessary pressure differentials within the system.

[0038] Combined with attachment Figure 6 As shown, the test loop 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 through a pipeline, one end of the post-valve valve 52 is connected to the test outlet 20 through a pipeline, the other end of the pre-valve valve 49 is connected to one end of the auxiliary heater 50 through a pipeline, the other end of the auxiliary heater 50 is connected to one end of the test valve 51 through a pipeline, and the other end of the test valve 51 is connected to the other end of the post-valve valve 52 through a pipeline.

[0039] A reverse outlet pipeline with a reverse outlet valve 53 branches out from the pipeline between the front valve 49 and the auxiliary heater 50, and the reverse outlet pipeline is connected to the pipeline between the rear valve 52 and the test outlet 20. A reverse inlet pipeline with a reverse inlet valve 54 branches out from the pipeline between the front valve 49 and the test inlet 14, and the reverse inlet pipeline is connected to the pipeline between the test valve 51 and the rear valve 52. A pipeline connected to the high pressure difference outlet 61 is also branched out from the pipeline between the rear valve 52 and the test outlet 20.

[0040] Drainage and exhaust branches are provided on the pipeline between the front valve 49 and the auxiliary heater 50, and on the pipeline between the test valve 51 and the rear valve 52. A temperature gauge is provided on the auxiliary heater 50. Pressure gauges and temperature gauges are provided on the pipeline between the auxiliary heater 50 and the test valve 51, and on the pipeline between the test valve 51 and the rear valve 52, and a differential pressure gauge is connected between the two pipelines.

[0041] Combined with attachment Figure 7 As 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 provided 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 of the system. When the circulation system 6 is started, the circulation pump 55 runs continuously. By adjusting the opening of the circulation regulating valve 56, the external output flow of the circulation system 6 is adjusted.

[0043] Combined with attachment 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, the other end of the first branch valve 57 is connected to the first water inlet and outlet 9 through a pipeline, and the other end of the second branch valve 58 is connected to the second water inlet and 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, and the discharge valve group 59 is arranged on the regulating pipeline connected to the deionized water line.

[0044] The main functions of the water regulating system 7 are to regulate the replenishment and drainage and the water circulation of the pressure stabilizer 28.

[0045] The functions of this high temperature and high pressure valve test system are mainly divided into two parts: 1. 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.

[0046] 1. High-temperature, high-pressure water medium test: Fill the system with water and exhaust the air. Close the balancing system 2, cooling system 3, heating system 4, and second branch valve 35, forming two intersecting circulation loops driven by the circulation pump 55. Intersecting loop 1 is the outlet of the circulation pump 55, flowing through the circulation regulating outlet valve 23, the test loop system 5, the circulation regulating inlet valve 24, the circulation regulating flowmeter 25, and returning to the circulation pump 55. Intersecting loop 2 is the outlet of the circulation pump 55, flowing 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, the circulation regulating flowmeter 25, and returning to the circulation pump 55. Start the circulation pump 55 and heat the pressure regulator 28 to ensure that the test loop and the medium below the pressure regulator 28 are consistent. Once the test medium meets the requirements, the high-temperature, high-pressure water medium test can be carried out.

[0047] 2. Transition from high-temperature, high-pressure water medium to low-temperature, high-pressure water medium test: Based on the high-temperature, high-pressure water medium test, close the second branch valve 58 and the first branch valve 33, disconnecting the second intersecting loop so that the medium in the pressurizer 28 does not participate in the system circulation. Open the second branch valve 35 to connect the pressurizer 28 with the test loop system 5, and the pressurizer 28 maintains its pressure stabilization function. Open the cooling inlet valve 44 and the cooler 43 to allow the cooling system 3 to participate in the test loop system 5 circulation and cool down to the test temperature. Once the test medium meets the requirements, the low-temperature, high-pressure water medium test can be carried out.

[0048] 3. Low-temperature, high-pressure to high-temperature, high-pressure water medium test: Following the low-temperature, high-pressure water medium test, close cooling inlet valve 44 to isolate cooling system 3. Open heating inlet valve 47 and heater 46, allowing heating system 4 to participate in the test circuit system 5 for cyclic heating, raising the temperature to the test temperature. If the test medium meets the requirements, the transition from low-temperature, high-pressure to high-temperature, high-pressure is complete, and further high-temperature, high-pressure water medium testing can be carried out.

[0049] 4. Steam Medium Test: Fill the system with water and exhaust. Close the balancing system 2, cooling system 3, heating system 4, first branch valve 33, and second branch valve 58, ensuring that the circulating pump 55 only drives the test circuit system 5. Turn on the auxiliary heater 50 to preheat the test circuit system 5. Connect the pressurizer 28 to the test circuit system 5 through the second branch valve 35 to maintain consistent pressure. Turn on the heater 46 within the pressurizer 28 to generate steam. When the steam parameters meet the test requirements, close the circulation control outlet valve 23 and the circulation control inlet valve 24, stopping the preheating cycle and auxiliary heating. Close the second branch valve 35, open the first branch valve 33, open the pre-valve valve 49, open the post-valve valve 52, open the test valve 51, and slowly open the high-pressure differential valve group 26, allowing steam from the pressure-regulating tank to flow through the test valve 51 and the pipeline. Slowly discharge the preheated water from the high-pressure differential valve group 26. The test circuit system 5 is now filled with steam and the steam test can proceed.

[0050] II. Forward and Reverse Flow Tests of the Test Valve Medium: During the forward flow test of the test valve 51, the reverse outlet valve 53 and reverse inlet valve 54 are closed. During the reverse flow test, the reverse outlet valve 53 and reverse inlet valve 54 are opened, and the pre-valve valve 49 and post-valve valve 52 are closed. This allows 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, completing the online reverse flow test.

[0051] The high temperature and high pressure valve test system also has other derivative test functions such as nitrogen pressure stabilization test, flow test, mixed gas test, steam-water mixture test, etc.

[0052] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the scope of protection of the present invention.

Claims

1. A high-temperature and high-pressure valve test 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 regulation system (7), characterized in that: The water regulating port (8) of the steam water pressure stabilizing system (1) is connected to the first water inlet and outlet (9) connected to the water regulating system (7) through a pipeline. The external supply port (10) of the steam water pressure stabilizing system (1), the balancing inlet (11) of the balancing 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 through pipelines. The balancing port (16) of the steam water pressure stabilizing system (1) is connected to the balancing outlet (17) of the balancing system (2) through a pipeline. The cooling outlet (15) of the cooling system (3) is connected to the balancing outlet (16) of the balancing 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 simultaneously connected to the second water inlet and outlet (22) of the water regulating 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), and a circulation regulating inlet valve (24) and a circulation regulating flowmeter (25) are provided on the pipeline connected to the circulation inlet (21) of the circulation system (6). The high pressure difference outlet (61) of the test loop system (5) is connected to the high pressure difference test pipeline (27) having a high pressure difference valve group (26).

2. A high temperature and high pressure valve testing system according to claim 1, characterized in that: The steam water pressure stabilization system (1) comprises a pressure stabilizer (28), a balancing container (29), a body pressure transmitter (30), a body temperature transmitter (31), a heater group (32), a first branch valve (33), a master control valve (34) and a second branch valve (35). The balancing container (29), the body pressure transmitter (30) and the body temperature transmitter (31) are arranged on the side of the pressure stabilizer (28). The heater group (32) is horizontally installed on the side wall of the pressure stabilizer (28). The heating part of the heater group (32) extends into the interior of the pressure stabilizer (28). The lower end of the pressure stabilizer (28) is connected to the side through a pipeline and the master control valve is arranged in sequence. (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 a nitrogen source pipeline (36), an exhaust pipeline (37) and an exhaust gas discharge pipeline (38), and the bottom of the pressure stabilizer (28) is also connected to a debugging drainage pipeline (40) with a manual valve group (39).

3. The high temperature and high pressure valve testing system according to claim 1, characterized in that: The balancing system (2) includes a stop valve (41) and a quick-opening valve (42), one end of the stop valve (41) is connected to one end of the quick-opening valve (42) via a pipeline, the other end of the stop valve (41) is connected to the balancing outlet (17) via a pipeline, and the other end of the quick-opening valve (42) is connected to the balancing inlet (11) via a pipeline.

4. A high temperature and high pressure valve testing system according to claim 1, characterized in that: The cooling system (3) includes a cooler (43), a cooling inlet valve (44) and a cooling outlet valve (45), wherein 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, respectively; 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 temperature gauge and a pressure gauge are connected to the pipeline between the cooler (43) and the cooling inlet valve (44); and a temperature gauge is connected to the pipeline between the cooler (43) and the cooling outlet valve (45).

5. The high temperature and high pressure valve testing system according to claim 1, characterized in that: The heating system (4) includes a heater (46), a heating inlet valve (47) and a heating outlet valve (48), wherein 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, respectively; 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 temperature gauge and a pressure gauge are connected to the pipeline between the heater (46) and the heating inlet valve (47); and a temperature gauge is connected to the pipeline between the heater (46) and the heating outlet valve (48).

6. The high temperature and high pressure valve testing system according to claim 1, characterized in that: The test loop 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) through a pipeline, and one end of the post-valve valve (52) is connected to the test outlet (20) through a pipeline. The other end of the pre-valve valve (49) is connected to one end of the auxiliary heater (50) through a pipeline, and the other end of the auxiliary heater (50) is connected to one end of the test valve (51) through a pipeline. The other end of the test valve (51) is connected to the other end of the post-valve valve (52) through a pipeline. A reverse outlet pipeline with a reverse outlet valve (53) branches out from the pipeline between the valve (49) and the auxiliary heater (50), and the reverse outlet pipeline is connected to the pipeline between the valve post valve (52) and the test outlet (20). A reverse inlet pipeline with a reverse inlet valve (54) branches out from the pipeline between the valve pre valve (49) and the test inlet (14), and the reverse inlet pipeline is connected to the pipeline between the test valve (51) and the valve post valve (52). A pipeline connected to the high pressure difference outlet (61) is also branched out from the pipeline between the valve post valve (52) and the test outlet (20).

7. A high temperature and high pressure valve testing system according to claim 6, characterized in that: A drainage and exhaust branch is provided on the pipeline between the valve before the valve (49) and the auxiliary heater (50), and on the pipeline between the test valve (51) and the valve after the valve (52). A temperature gauge is provided on the auxiliary heater (50). A pressure gauge and a temperature gauge are provided on the pipeline between the auxiliary heater (50) and the valve after the valve (51), and on the pipeline between the valve after the valve (52). A differential pressure gauge is connected between the two pipelines.

8. The high-temperature and high-pressure valve testing system according to claim 1, characterized in that: 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 provided on the pipelines at both ends of the circulation pump (55).

9. The high-temperature and high-pressure valve testing system according to claim 1, characterized in that: The water regulating system (7) comprises 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) via a pipeline; the other end of the first branch valve (57) is connected to the first water inlet and outlet (9) via a pipeline; the other end of the second branch valve (58) is connected to the second water inlet and outlet (22) via a pipeline; the pipeline between the first branch valve (57) and the second branch valve (58) is also connected to a deionized water pipeline (60); and the discharge valve group (59) is arranged on a regulating pipeline connected to the deionized water pipeline.

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