Regulating valve testing device and method

Abstract

The invention discloses a regulating valve testing device and method, and relates to the technical field of regulating valves, and the regulating valve testing device comprises a steam generation mechanism; the air inlet end of the condensation pipe is used for being connected with an air outlet of the adjusting valve; the condensing mechanism is used for condensing steam in the condensing pipe; and the detection mechanism is used for measuring the amount of liquid water condensed in the condensation pipe. According to the technical scheme, steam is supplied into the steam transmission pipe through the steam generation mechanism, steam leaked out of the adjusting valve is condensed through the condensation mechanism, liquid water condensed out of the condensation pipe is detected through the detection mechanism, and the total leakage amount of the adjusting valve is obtained; therefore, the leakage rate of the regulating valve under the saturated steam is detected, and the problem that the leakage rate of the regulating valve when the saturated steam serves as a working medium is difficult to detect is solved on the whole.

Description

Technical Field

[0001] The present invention relates to the technical field of regulating valves, and in particular to a regulating valve testing device and method. Background Art

[0002] Leakage test is an important means to inspect the quality of control valves. GB / T 4213-2008 "Pneumatic Control Valve" proposes the test method and measurement medium for the leakage of control valves, where the measurement medium is clean gas or water at 5-40°C. In some specific working environments, such as nuclear power plants, the internal medium is often saturated steam; it is difficult to detect the leakage of the control valve when saturated steam is used as the working medium. Summary of the invention

[0003] The main purpose of the present invention is to provide a control valve test device and method, aiming to improve the problem that it is difficult to detect the leakage of the control valve when saturated steam is used as the working medium.

[0004] To achieve the above-mentioned purpose, the present invention provides a regulating valve test device, a steam generating mechanism, for supplying steam;

[0005] A steam transmission pipe, wherein the air inlet end of the steam transmission pipe is connected to the air outlet of the steam generating mechanism, and the air outlet end of the steam transmission pipe is used to connect to the air inlet of the regulating valve;

[0006] A condenser, the air inlet end of the condenser is used to connect to the air outlet of the regulating valve;

[0007] a condensing mechanism, used for condensing the steam in the condensing tube; and

[0008] The detection mechanism is used to measure the amount of liquid water condensed in the condenser.

[0009] In one embodiment, the steam generating mechanism comprises:

[0010] A heat accumulator, wherein saturated steam is stored in the heat accumulator;

[0011] A pressure regulating tank, wherein the air inlet of the pressure regulating tank is connected to the air outlet of the heat accumulator, the air outlet of the pressure regulating tank is connected to the air inlet end of the steam transmission pipe, and the steam pressure in the pressure regulating tank is lower than the steam pressure in the heat accumulator;

[0012] A pressure regulating assembly, used for regulating the pressure of the steam in the pressure regulating tank; and

[0013] The temperature regulating component is used to regulate the temperature of the steam in the pressure regulating tank.

[0014] In one embodiment, a first connecting pipe is connected between the heat accumulator and the pressure regulating tank, and the pressure regulating assembly includes a pressure regulating valve, which is disposed on the first connecting pipe.

[0015] In one embodiment, the temperature adjustment component includes:

[0016] A temperature regulating tube is arranged around the pressure regulating tank, a first heat conducting medium is arranged in the temperature regulating tube, and the temperature regulating tube abuts against the outer side of the pressure regulating tank;

[0017] A heating component, used for heating the first heat-conducting medium in the temperature-regulating tube;

[0018] The first refrigeration component is used to cool the first heat transfer medium in the temperature regulating tube.

[0019] In one embodiment, a drain pipe is provided on the condenser tube, a first valve is provided on the drain pipe, and the detection mechanism includes:

[0020] Storage tanks;

[0021] a first water pump, wherein a water inlet of the first water pump is connected to the storage tank;

[0022] a second connecting pipe, wherein the water inlet of the second connecting pipe is connected to the water outlet of the first water pump; the water outlet of the second connecting pipe is connected to the condenser pipe; and

[0023] The flow valve is arranged on the second connecting pipe.

[0024] In one embodiment, the condenser is connected to a water level detection tube, and a second valve is provided on the water level detection tube; and / or,

[0025] The condenser is provided with a first pressure gauge.

[0026] In one embodiment, the regulating valve testing device further includes an airflow drying component, and an air outlet of the airflow drying component is connected to the condenser.

[0027] The present invention further proposes a regulating valve testing method. Based on the regulating valve testing device, the regulating valve testing method comprises:

[0028] Selecting a regulating valve, and connecting the regulating valve to the steam transmission pipe and the condenser pipe;

[0029] adjusting the opening of the regulating valve;

[0030] Selecting the pressure of the steam, and causing the steam generating mechanism to supply steam of the corresponding pressure to the steam transmission pipe;

[0031] Condensing the steam leaking from the regulating valve into liquid water through a condensing mechanism;

[0032] Detecting the amount of the liquid water in the condenser tube by a detection mechanism;

[0033] The amount of steam leakage of the regulating valve per unit time is obtained according to the amount of the liquid water in the condenser and the detection time of the regulating valve.

[0034] In one embodiment, a drain pipe is provided on the condenser tube, a first valve is provided on the drain pipe, and the detection mechanism includes:

[0035] Storage tanks;

[0036] a first water pump, wherein a water inlet of the first water pump is connected to the storage tank;

[0037] a second connecting pipe, wherein the water inlet of the second connecting pipe is connected to the water outlet of the first water pump; the water outlet of the second connecting pipe is connected to the condenser pipe; and

[0038] A flow valve, arranged on the second connecting pipe;

[0039] The detecting mechanism detects the amount of the liquid water in the condenser tube, including:

[0040] Starting the first water pump to fill the condenser tube with water in the water storage tank;

[0041] Measuring the volume of water injected into the condenser tube through a flow valve;

[0042] According to the volume of the condenser and the volume of water injected into the condenser, the volume of liquid water condensed in the condenser is obtained;

[0043] Open the first valve to drain the water in the condenser.

[0044] In one embodiment, the regulating valve test device further comprises an airflow drying component, and an air outlet of the airflow drying component is connected to the condenser pipe;

[0045] The step of opening the first valve to discharge the water in the condenser tube further comprises:

[0046] After the water in the condenser tube is discharged from the drain pipe, the airflow drying component is started to blow airflow into the condenser tube to dry the residual water in the condenser tube.

[0047] The technical solution of the present invention provides steam to the steam transmission pipe through the steam generating mechanism. When the regulating valve is installed on the steam transmission pipe, the working medium of the regulating valve is steam. The water vapor leaked from the regulating valve is condensed by the condensing mechanism so that liquid water adheres to the condensation pipe. Then, the liquid water condensed in the condensation pipe is detected by the detection mechanism to obtain the total leakage of the regulating valve. According to the working time of the regulating valve, the water vapor leakage of the regulating valve per unit time can be obtained, thereby detecting the leakage of the regulating valve under saturated steam. Overall, the problem of difficulty in detecting the leakage of the regulating valve when saturated steam is used as the working medium is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0049] Figure 1 A schematic structural diagram of an embodiment of a regulating valve testing device provided by the present invention.

[0050] Description of Figure Numbers:

[0051] 1. Steam generating mechanism; 11. Heat accumulator; 111. First connecting pipe; 112. Connecting valve; 12. Pressure regulating tank; 121. Second pressure gauge; 122. Second thermometer; 123. Safety valve; 13. Pressure regulating assembly; 14. Temperature regulating assembly; 141. Temperature regulating pipe; 1411. Temperature regulating water valve; 142. Heating component; 1421. Heating box; 1422. Heating element; 1423. Sixth connecting pipe; 1424. Sixth valve; 143. First refrigeration component; 1431. First refrigeration box; 1432. First refrigeration element; 1433. Seventh connecting pipe; 1434. Seventh valve; 15. Steam furnace body; 151. Third connecting pipe; 152. Third valve; 2. Steam transmission pipe; 21. Eighth valve; 22. Third pressure gauge ; 23. The third thermometer; 24. The drain pipe; 3. The condenser; 31. The first pressure gauge; 32. The first thermometer; 33. The drain pipe; 34. The first valve; 35. The water level detection tube; 351. The second valve; 4. The condensing mechanism; 41. The second refrigeration box; 42. The second refrigeration component; 43. The third water pump; 44. The cooling pipe; 45. The water supply pipe; 5. The detection mechanism; 51. The storage tank; 52. The first water pump; 53. The second connecting pipe; 54. The flow valve; 6. The regulating valve; 61. The first air compressor; 62. The control device; 7. The water tank; 71. The fourth connecting pipe; 711. The fourth valve; 72. The fifth connecting pipe; 721. The fifth valve; 73. The second water pump; 8. The airflow drying component; 81. The air supply pipe; 82. The second air compressor.

[0052] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0055] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0056] Leakage test is an important means to inspect the quality of control valves. GB / T 4213-2008 "Pneumatic Control Valve" proposes the test method and measurement medium for the leakage of control valves, where the measurement medium is clean gas or water at 5-40°C. In some specific working environments, such as nuclear power plants, the steam pipes in the pipelines where the control valves work often use saturated steam as the internal medium. Saturated steam is different from water and clean gas. The leakage of the control valve to water and clean gas cannot be directly obtained, and it is difficult to detect the leakage of the control valve when saturated steam is used as the working medium.

[0057] The invention provides a regulating valve testing device.

[0058] See also Figure 1 In one embodiment of the present invention, the regulating valve 6 test device comprises:

[0059] A steam generating mechanism 1, for supplying steam;

[0060] A steam transmission pipe 2, the air inlet end of the steam transmission pipe 2 is connected to the air outlet of the steam generating mechanism 1, and the air outlet end of the steam transmission pipe 2 is used to connect to the air inlet of the regulating valve 6;

[0061] A condenser 3, wherein the air inlet end of the condenser 3 is used to connect to the air outlet of the regulating valve 6;

[0062] A condensing mechanism 4, used for condensing the steam in the condensing tube 3; and

[0063] The detection mechanism 5 is used to measure the amount of liquid water condensed in the condenser tube 3 .

[0064] The technical solution of the present invention provides steam to the steam transmission pipe 2 through the steam generating mechanism 1. When the regulating valve 6 is installed on the steam transmission pipe 2, the working medium of the regulating valve 6 is steam. The water vapor leaked from the regulating valve 6 is condensed by the condensing mechanism 4 so that liquid water adheres to the condensing tube 3. Then, the liquid water condensed in the condensing tube 3 is detected by the detecting mechanism 5 to obtain the total leakage of the regulating valve 6. According to the working time of the regulating valve 6, the water vapor leakage of the regulating valve 6 per unit time can be obtained, thereby detecting the leakage of the regulating valve 6 under saturated steam, which improves the problem of difficulty in detecting the leakage of the regulating valve 6 when saturated steam is used as the working medium.

[0065] See also Figure 1 , the steam generating mechanism 1 comprises:

[0066] A heat accumulator 11, wherein saturated steam is stored in the heat accumulator 11;

[0067] A pressure regulating tank 12, wherein the air inlet of the pressure regulating tank 12 is connected to the air outlet of the heat accumulator 11, and the air outlet of the pressure regulating tank 12 is connected to the air inlet end of the steam transmission pipe 2, and the steam pressure in the pressure regulating tank 12 is lower than the steam pressure in the heat accumulator 11;

[0068] A pressure regulating assembly 13, used for regulating the pressure of the steam in the pressure regulating tank 12; and

[0069] The temperature regulating component 14 is used to regulate the temperature of the steam in the pressure regulating tank 12 .

[0070] The pressure and temperature of the steam in the pressure regulating tank 12 can be adjusted through the pressure regulating component 13 and the temperature regulating component 14, so that the steam of the specified temperature and pressure is output from the pressure regulating tank 12, which is convenient for adjusting the pressure of the steam in the steam transmission pipe 2 according to the different working environments required by the regulating valve 6.

[0071] The steam generating mechanism 1 also includes a steam furnace body 15, a third connecting pipe 151 is connected between the steam furnace body 15 and the heat accumulator 11, and a third valve 152 is connected to the third connecting pipe 151. When the boiler is started and the third valve 152 is opened, the steam furnace body 15 can supply saturated steam to the heat accumulator 11, so that the saturated steam is stored in the heat accumulator 11. When the saturated steam in the heat accumulator 11 reaches a target value, the steam furnace body 15 and the third valve 152 are closed, and the heat accumulator 11 can store saturated steam.

[0072] A first connecting pipe 111 is connected between the heat accumulator 11 and the pressure regulating tank 12 . The pressure regulating assembly 13 includes a pressure regulating valve, which is disposed on the first connecting pipe 111 .

[0073] By controlling the opening of the pressure regulating valve, the pressure of the saturated steam outputted from the heat accumulator 11 to the pressure regulating tank 12 can be adjusted, thereby outputting saturated steam of a specific pressure into the pressure regulating tank 12. When the pressure regulating tank 12 is filled with the saturated steam, the pressure of the saturated steam in the pressure regulating tank 12 is equal to the pressure of the saturated steam outputted by the regulating valve 6.

[0074] See also Figure 1 A connecting valve 112 is also provided on the first connecting pipe 111 , and the connecting valve 112 can be controlled to control the opening and closing of the first connecting pipe 111 .

[0075] The temperature adjustment component 14 includes:

[0076] A temperature regulating tube 141 is disposed around the pressure regulating tank 12, a first heat conducting medium is disposed in the temperature regulating tube 141, and the temperature regulating tube 141 abuts against the outer side of the pressure regulating tank 12;

[0077] A heating component 142 is used to heat the first heat-conducting medium in the temperature-adjusting tube 141; and

[0078] The first cooling component 143 is used to cool the first heat transfer medium in the temperature regulating tube 141 .

[0079] When the temperature of the saturated steam in the pressure regulating tank 12 is higher than the target temperature, the first refrigeration component 143 cooperates with the temperature regulating tube 141 to cool the pressure regulating tank 12 so that the temperature of the saturated steam in the pressure regulating tank 12 drops to the target temperature; when the temperature of the saturated steam in the pressure regulating tank 12 is lower than the target temperature, the heating component 142 cooperates with the temperature regulating tube 141 to heat the pressure regulating tank 12 so that the temperature of the saturated steam in the pressure regulating tank 12 rises to the target temperature; thus, the temperature of the steam in the pressure regulating tank 12 is regulated as a whole.

[0080] The first heat transfer medium is preferably water, and both ends of the temperature regulating tube 141 are provided with temperature regulating water valves 1411, through which the circulation and interruption of the water in the temperature regulating tube 141 can be controlled, one end of the temperature regulating tube 141 is connected to the water tank 7, and the other end is connected to the fourth connecting tube 71 and the fifth connecting tube 72, the fourth connecting tube 71 is provided with a fourth valve 711, and the fifth connecting tube 72 is provided with a fifth valve 721. The water tank 7 is connected to a second water pump 73.

[0081] Specifically, the heating component 142 includes a heating box 1421, a heating element 1422, a sixth connecting pipe 1423 and a sixth valve 1424. The heating element 1422 is located in the heating box 1421, and the heating element 1422 can be an electric heating wire or any other heating structure, and the heating element 1422 can heat the water in the heating box 1421. The water inlet of the fourth connecting pipe 71 is connected to the water outlet of the heating box 1421. The water inlet of the heating box 1421 is connected to the sixth connecting pipe 1423, the sixth valve 1424 is arranged on the sixth connecting pipe 1423, the water inlet of the second water pump 73 is connected to the water tank 7, and the water outlet of the second water pump 73 is connected to the sixth connecting pipe 1423.

[0082] The second water pump 73 can send the water in the water tank 7 into the heating box 1421 for heating, and send the water in the heating box 1421 into the fourth connecting pipe 71, and then send the water in the fourth connecting pipe 71 into the temperature regulating pipe 141, thereby heating the pressure regulating tank 12.

[0083] See also Figure 1 The first refrigeration component 143 includes a first refrigeration box 1431, a first refrigeration element 1432, a seventh connecting pipe 1433 and a seventh valve 1434. The first refrigeration element 1432 can be any heat absorbing and cooling or heat dissipating structure. The fifth connecting pipe 72 is connected to the water outlet of the first refrigeration box 1431. The water inlet of the first refrigeration box 1431 and the water outlet of the second water pump 73 are connected through the seventh connecting pipe 1433. The seventh valve 1434 is arranged on the seventh connecting pipe 1433. The second water pump 73 can send the water in the water tank 7 into the first refrigeration box 1431 for cooling, and send the cooled water into the temperature regulating pipe 141 through the fifth connecting pipe 72, thereby realizing the adjustment of the temperature of the pressure regulating tank 12.

[0084] The pressure regulating tank 12 is also provided with a second pressure gauge 121, a second thermometer 122 and a safety valve 123. The second pressure gauge 121 can detect the pressure of the steam in the pressure regulating tank 12, and the second thermometer 122 can detect the temperature of the steam in the pressure regulating tank 12. When the steam pressure in the pressure regulating tank 12 is higher than the safety value, the safety valve 123 opens to discharge the steam in the pressure regulating tank 12 to the outside of the pressure regulating tank 12, thereby ensuring the safety of the pressure regulating tank 12.

[0085] The steam transmission pipe 2 is also provided with an eighth valve 21, and the on-off of the steam transmission pipe 2 can be controlled by controlling the eighth valve 21. The steam transmission pipe 2 is also provided with a third pressure gauge 22 and a third thermometer 23, and the pressure and temperature of the steam in the steam transmission pipe 2 can be detected by the third pressure gauge 22 and the third thermometer 23.

[0086] See also Figure 1 The steam transmission pipe 2 is connected to an exhaust pipe 24, and a valve is provided on the exhaust pipe 24. The water condensed in the steam transmission pipe 2 can flow into the exhaust pipe 24, reducing the liquid water condensed in the steam transmission pipe 2 from flowing into the regulating valve 6, so as to reduce the liquid water directly leaking from the regulating valve 6. The lower end of the exhaust pipe 24 is connected to the water tank 7. After the valve on the exhaust pipe 24 is opened, the water on the exhaust pipe 24 can directly flow into the water tank 7.

[0087] The regulating valve 6 is a pneumatic regulating valve 6, and the pressure regulating valve is connected to a first air compressor 61. The first air compressor 61 can control the opening of the regulating valve 6. The first air compressor 61 is connected to a control device 62. The first air compressor 61 can be controlled by the control device 62, thereby realizing automatic control of the opening of the regulating valve 6.

[0088] The condenser 3 is provided with a first pressure gauge 31 and a first thermometer 32, through which the cooling effect of the steam in the condenser 3 can be judged. Specifically, when the value of the first pressure gauge 31 is not higher than the temperature before the regulating valve 6 passes the steam, the condensing mechanism 4 fully condenses the steam in the condenser 3. When the value of the first thermometer 32 remains stable and the value of the first thermometer 32 is lower than or equal to the working environment, the condensing mechanism 4 fully condenses the steam in the condenser 3.

[0089] See also Figure 1 The condenser tube 3 is provided with a drain pipe 33, and the drain pipe 33 is provided with a first valve 34. The detection mechanism 5 includes:

[0090] Storage tank 51;

[0091] A first water pump 52, wherein a water inlet of the first water pump 52 is connected to the storage tank 51;

[0092] a second connecting pipe 53, the water inlet of the second connecting pipe 53 is connected to the water outlet of the first water pump 52; the water outlet of the second connecting pipe 53 is connected to the condenser pipe 3; and,

[0093] The flow valve 54 is disposed on the second connecting pipe 53 .

[0094] After the steam transmission pipe 2 stops supplying water vapor, the water in the storage tank 51 can be sent to the condenser 3 through the first water pump 52, and the volume of water injected into the condenser 3 can be obtained through the flow valve 54. According to the volume of the condenser 3, the volume of water condensed in the condenser 3 can be obtained, and finally the amount of steam leaked from the regulating valve 6 can be obtained. After the measurement of the regulating valve 6 is completed, the water in the condenser 3 can be discharged by opening the first valve 34, so as to facilitate the next measurement of the regulating valve 6.

[0095] The condenser 3 is connected to a water level detection tube 35, and a second valve 351 is provided on the water level detection tube 35. When the first water pump 52 injects water into the condenser 3, the second valve 351 is opened, and the air in the condenser 3 can be discharged from the water level detection tube 35. When the water in the condenser 3 enters the water level detection tube 35, it can be judged that the water fills the condenser 3. The water level detection tube 35 has a scale, which can be conveniently read out the amount of water on the water level detection tube 35. The amount of water measured by the flow valve 54 is subtracted from the reading of the water level detection tube 35 and the volume of the condenser 3 in turn, and the amount of water condensed in the condenser 3 can be obtained.

[0096] A vibration component may also be provided on the condenser tube 3 . When water is injected into the condenser tube 3 , the bubbles attached to the inner wall of the condenser tube 3 may be reduced by turning on the vibration component.

[0097] The regulating valve 6 test device also includes an airflow drying component 8, and the air outlet of the airflow drying component 8 is connected to the condenser 3. After the water in the condenser 3 is discharged from the drain pipe 33, air is injected into the condenser 3 through the airflow drying component 8, and the air can be discharged from the water level detection tube 35 or the drain pipe 33. The air can accelerate the drying of the water in the condenser 3, improve the drying effect inside the condenser 3, reduce the water droplets attached to the condenser 3, and reduce the error in the next test.

[0098] The airflow drying assembly 8 includes an air supply pipe 81 and a second air compressor 82 . One end of the air supply pipe 81 is connected to the condenser 3 , and the other end is connected to the air outlet of the second air compressor 82 . The second air compressor 82 is connected to the control device 62 .

[0099] The condensing mechanism 4 includes a second refrigeration box 41, a second refrigeration element 42, a third water pump 43, a cooling pipe 44 and a water supply pipe 45. The water inlet of the third water pump 43 is connected to the water tank 7, the water outlet of the third water pump 43 is connected to the water inlet of the second refrigeration box 41, the water outlet of the second refrigeration box 41 is connected to the cooling pipe 44, the second refrigeration element 42 is used to cool the water in the second refrigeration box 41, and the second refrigeration element 42 is a prior art. One end of the cooling pipe 44 is connected to the water outlet of the second refrigeration box 41, and the other end is connected to the water tank 7. The third water pump 43 can send the water in the water tank 7 into the second refrigeration box 41 for cooling, and the cooled water is sent to the cooling pipe 44, and then flows from the cooling pipe 44 into the water tank 7.

[0100] Specifically, the cooling pipe 44 is arranged around the condenser pipe 3, and the cooling pipe 44 abuts against the outer side of the condenser pipe 3, thereby ensuring the cooling effect of the cooling pipe 44 on the condenser pipe 3. Valves are arranged at both ends of the cooling pipe 44, and a valve is arranged on the water supply pipe 45.

[0101] The present invention also proposes a regulating valve 6 testing method, which is based on a regulating valve 6 testing device. The specific structure of the regulating valve 6 testing device refers to the above-mentioned embodiment. Since the regulating valve 6 testing method adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0102] The test device for regulating valve 6 includes:

[0103] A steam generating mechanism 1, for supplying steam;

[0104] A steam transmission pipe 2, the air inlet end of the steam transmission pipe 2 is connected to the air outlet of the steam generating mechanism 1, and the air outlet end of the steam transmission pipe 2 is used to connect to the air inlet of the regulating valve 6;

[0105] A condenser 3, wherein the air inlet end of the condenser 3 is used to connect to the air outlet of the regulating valve 6;

[0106] A condensing mechanism 4, used for condensing the steam in the condensing tube 3; and

[0107] The detection mechanism 5 is used to measure the amount of liquid water condensed in the condenser tube 3 .

[0108] The test methods for regulating valve 6 include:

[0109] Selecting a regulating valve 6, and connecting the regulating valve 6 to the steam transmission pipe 2 and the condenser pipe 3;

[0110] Adjusting the opening of the regulating valve 6;

[0111] Selecting the steam pressure, and making the steam generating mechanism 1 supply steam of corresponding pressure to the steam transmission pipe 2;

[0112] The steam leaking from the regulating valve 6 is condensed into liquid water by the condensing mechanism 4;

[0113] The amount of the liquid water in the condenser tube 3 is detected by the detection mechanism 5;

[0114] According to the amount of the liquid water in the condenser 3 and the detection time of the regulating valve 6 , the leakage amount of the steam of the regulating valve 6 per unit time is obtained.

[0115] Specifically, by adjusting the opening of the regulating valve 6 and the pressure and temperature of the steam in the pressure regulating tank 12 , the steam leakage of the regulating valve 6 under corresponding conditions can be measured.

[0116] The detecting mechanism 5 detects the amount of the liquid water in the condenser tube 3, including:

[0117] Start the first water pump 52 to fill the condenser pipe 3 with water in the water storage tank;

[0118] The volume of water injected into the condenser tube 3 is measured by the flow valve 54;

[0119] According to the volume of the condenser tube 3 and the volume of water injected into the condenser tube 3, the volume of liquid water condensed in the condenser tube 3 is obtained;

[0120] The first valve 34 is opened to discharge the water in the condenser tube 3 .

[0121] After completing a measurement of the steam leakage of the regulating valve 6, the water in the condenser 3 is discharged through the first valve 34, and the leakage of the regulating valve 6 is detected again, thereby improving the accuracy of the steam condensed in the condenser 3.

[0122] After the water in the condenser tube 3 is drained from the drain pipe 33 , the airflow drying component 8 is started to blow airflow into the condenser tube 3 to dry the residual water in the condenser tube 3 .

[0123] Specifically, the second air compressor 82 is started, and the second air compressor 82 can deliver air into the condenser tube 3, and the air can be discharged from the water level detection tube 35 and the drain pipe 33, thereby further drying the condenser tube 3 and reducing the residual water in the condenser tube 3. Furthermore, when delivering air into the condenser tube 3, a heating component 142 can be provided to heat the condenser tube 3 to accelerate the evaporation of the residual water droplets on the inner wall of the condenser tube 3.

[0124] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A regulating valve test device, characterized in that: include: A steam generating mechanism for supplying steam; A steam transmission pipe, wherein the air inlet end of the steam transmission pipe is connected to the air outlet of the steam generating mechanism, and the air outlet end of the steam transmission pipe is used to connect to the air inlet of the regulating valve; A condenser, the air inlet end of the condenser is used to connect to the air outlet of the regulating valve; a condensing mechanism, used for condensing the steam in the condensing tube; and The detection mechanism is used to measure the amount of liquid water condensed in the condenser.

2. The regulating valve testing device according to claim 1, characterized in that: The steam generating mechanism comprises: A heat accumulator, wherein saturated steam is stored in the heat accumulator; A pressure regulating tank, wherein the air inlet of the pressure regulating tank is connected to the air outlet of the heat accumulator, the air outlet of the pressure regulating tank is connected to the air inlet end of the steam transmission pipe, and the steam pressure in the pressure regulating tank is lower than the steam pressure in the heat accumulator; A pressure regulating assembly, used for regulating the pressure of the steam in the pressure regulating tank; and The temperature regulating component is used to regulate the temperature of the steam in the pressure regulating tank.

3. The regulating valve testing device according to claim 2, characterized in that: A first connecting pipe is connected between the heat accumulator and the pressure regulating tank, and the pressure regulating assembly includes a pressure regulating valve, which is arranged on the first connecting pipe.

4. The regulating valve testing device according to claim 2, characterized in that: The temperature adjustment component comprises: A temperature regulating tube is arranged around the pressure regulating tank, a first heat conducting medium is arranged in the temperature regulating tube, and the temperature regulating tube abuts against the outer side of the pressure regulating tank; a heating component, used for heating the first heat-conducting medium in the temperature-adjusting tube; and The first refrigeration component is used to cool the first heat transfer medium in the temperature regulating tube.

5. The regulating valve testing device according to claim 1, characterized in that: The condenser is provided with a drain pipe, the drain pipe is provided with a first valve, and the detection mechanism includes: Storage tanks; a first water pump, wherein a water inlet of the first water pump is connected to the storage tank; a second connecting pipe, wherein the water inlet of the second connecting pipe is connected to the water outlet of the first water pump; the water outlet of the second connecting pipe is connected to the condenser pipe; and The flow valve is arranged on the second connecting pipe.

6. The regulating valve testing device according to claim 5, characterized in that: The condenser is connected to a water level detection tube, and the water level detection tube is provided with a second valve; and / or, The condenser is provided with a first pressure gauge.

7. The regulating valve testing device according to claim 5, characterized in that: The regulating valve testing device further comprises an airflow drying component, and an air outlet of the airflow drying component is connected to the condenser.

8. A control valve test method, based on the control valve test device according to any one of claims 1 to 7, characterized in that: include: Selecting a regulating valve, and connecting the regulating valve to the steam transmission pipe and the condenser pipe; adjusting the opening of the regulating valve; Selecting the pressure of the steam, and causing the steam generating mechanism to supply steam of the corresponding pressure to the steam transmission pipe; Condensing the steam leaking from the regulating valve into liquid water through a condensing mechanism; Detecting the amount of the liquid water in the condenser tube by a detection mechanism; The amount of steam leakage of the regulating valve per unit time is obtained according to the amount of the liquid water in the condenser and the detection time of the regulating valve.

9. The regulating valve testing method according to claim 8, characterized in that: The condenser is provided with a drain pipe, the drain pipe is provided with a first valve, and the detection mechanism includes: Storage tanks; a first water pump, wherein a water inlet of the first water pump is connected to the storage tank; a second connecting pipe, wherein the water inlet of the second connecting pipe is connected to the water outlet of the first water pump; the water outlet of the second connecting pipe is connected to the condenser pipe; and A flow valve, arranged on the second connecting pipe; The detecting mechanism detects the amount of the liquid water in the condenser tube, including: Starting the first water pump to fill the condenser tube with water in the water storage tank; Measuring the volume of water injected into the condenser tube through a flow valve; According to the volume of the condenser and the volume of water injected into the condenser, the volume of liquid water condensed in the condenser is obtained; Open the first valve to drain the water in the condenser.

10. The regulating valve testing method according to claim 9, characterized in that: The regulating valve test device further comprises an airflow drying component, and an air outlet of the airflow drying component is connected to the condenser pipe; The step of opening the first valve to discharge the water in the condenser tube further comprises: After the water in the condenser tube is discharged from the drain pipe, the airflow drying component is started to blow airflow into the condenser tube to dry the residual water in the condenser tube.

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