Ground throttling test device and method

Abstract

The present application provides a ground throttling test device and method, wherein the ground throttling test device includes: an air supply component, a monitoring component, and a throttling component connected to the air supply component; the air supply component outputs test gas to test the throttling component, and the throttling component throttles and reduces the pressure of the test gas flowing through the throttling component; the monitoring component monitors the operating parameters of the throttling component under the test state. The present application uses high-pressure nitrogen as the factory test gas source for the ground throttling component to test the ground throttling component, which not only solves the problem of difficulty in selecting the test medium for the throttling component, but also avoids the danger in the test process, reduces the probability of accidents when the factory tests the ground throttling component, and ensures the personal safety of the testers.

Description

Technical Field

[0001] The present application relates to the technical field of natural gas throttling and gathering, and in particular to a ground throttling test device and method. Background Art

[0002] During gas field production, based on the characteristics of the ground development model, a pressure reduction production method is often adopted. The natural gas flowing through the ground throttling device is throttled and pressure-reduced by the ground throttling device, and the temperature of the natural gas is always ensured to be above the critical temperature of natural gas hydrates. This achieves the purpose of throttling the high-pressure natural gas at the natural gas wellhead after passing through the ground throttling device. At the same time, it ensures that the temperature of the natural gas is not lower than the natural gas hydrate formation temperature and reaches the low-pressure external transmission pipeline without producing natural gas hydrates, thereby simplifying the natural gas well site gathering and transportation process.

[0003] The ground throttling device of a natural gas well is used for the natural gas medium at the well site. After the ground throttling device is manufactured, it needs to be tested for safety by the factory. However, due to the flammable and explosive medium characteristics of natural gas, the test is very dangerous and may cause immeasurable property losses to the factory while also seriously threatening the personal safety of the testers. Summary of the Invention

[0004] In view of this, an embodiment of the present application provides a ground throttling test device and method to solve the technical defects existing in the prior art.

[0005] According to a first aspect of an embodiment of the present application, a ground throttling test device is provided, comprising:

[0006] An air supply component, a monitoring component, and a throttling component connected to the air supply component;

[0007] The gas supply component outputs the test gas to test the throttling component, and the throttling component throttles and reduces the pressure of the test gas flowing through the throttling component;

[0008] The monitoring component monitors the operating parameters of the throttling component in the test state.

[0009] Optionally, the gas supply component further includes: a gas supply bottle group, a pressure regulating valve, a gas buffer tank, and an emergency shut-off valve, wherein:

[0010] The input end of the pressure regulating valve is connected to the output end of the gas supply cylinder group to obtain the test gas output by the gas supply cylinder group, and the output end of the pressure regulating valve is connected to the input end of the gas buffer tank to input the pressure-regulated test gas into the gas buffer tank;

[0011] The output end of the gas buffer tank is connected to the input end of the emergency shut-off valve, and the output end of the emergency shut-off valve is connected to the input end of the throttling component.

[0012] Optionally, the monitoring component further includes: a first pressure gauge, a first thermometer, a second pressure gauge, a second thermometer, and a flow meter, wherein:

[0013] The input end of the first pressure gauge is connected to the output end of the emergency shut-off valve, the output end of the first pressure gauge is connected to the input end of the first thermometer, and the output end of the first thermometer is connected to the input end of the throttling component;

[0014] The input end of the second pressure gauge is connected to the output end of the throttling component, the output end of the second pressure gauge is connected to the input end of the second thermometer, the output end of the second thermometer is connected to the input end of the flow meter, and the output end of the flow meter is connected to the vent line to output the depressurized test gas.

[0015] Optionally, the throttling component further comprises: a ball valve, a throttling component body, wherein,

[0016] The input end of the ball valve is connected to the input end of the first thermometer, and the output end of the ball valve is connected to the input end of the throttling component body;

[0017] The throttling component body includes a plurality of throttling modules, and the plurality of throttling modules are arranged at intervals of a predetermined distance; each of the throttling modules is provided with a throttling hole.

[0018] Optionally, the monitoring component further includes: a pre-throttling pressure gauge, a pre-throttling thermometer, a post-throttling pressure gauge, and a post-throttling thermometer, wherein:

[0019] The input end of the pre-throttle pressure gauge is connected to the output end of the ball valve, the output end of the pre-throttle pressure gauge is connected to the input end of the pre-throttle thermometer, and the output end of the pre-throttle thermometer is connected to the input end of the throttling component body;

[0020] The input end of the post-throttling pressure gauge is connected to the output end of the throttling component body, the output end of the post-throttling pressure gauge is connected to the input end of the post-throttling thermometer, and the output end of the post-throttling thermometer is connected to the input end of the second pressure gauge.

[0021] Optionally, the monitoring component further includes: a plurality of throttling pressure gauges and a plurality of throttling thermometers, wherein:

[0022] The plurality of throttling pressure gauges and the plurality of throttling thermometers are arranged between the plurality of throttling modules that are spaced apart by a predetermined distance.

[0023] Optionally, the monitoring component further includes:

[0024] A gas supply pressure gauge is connected to the gas buffer tank.

[0025] Optionally, a bypass component is further included, wherein the bypass component includes a first bypass gate valve, a second bypass gate valve, and a third bypass gate valve;

[0026] The first bypass gate valve is arranged between the first thermometer and the throttling component, the input end of the first bypass gate valve is connected to the output end of the first thermometer, and the output end of the first bypass gate valve is connected to the input end of the throttling component;

[0027] The second bypass gate valve is arranged between the throttling component and the second pressure gauge, the input end of the second bypass gate valve is connected to the output end of the throttling component, and the output end of the second bypass gate valve is connected to the input end of the second pressure gauge;

[0028] The input end of the third bypass gate valve is connected to the output end of the first thermometer, and the output end of the third bypass gate valve is connected to the input end of the second pressure gauge.

[0029] According to a second aspect of an embodiment of this specification, a ground throttling test method is provided, which is applied to the ground throttling test device, comprising:

[0030] Inputting test gas into the throttling component through the gas supply component;

[0031] Acquiring, by means of a monitoring component, a property information value of the test gas output by the throttling component;

[0032] Determine whether the attribute information value meets the preset test information value, and determine whether the test is successful based on the determination result.

[0033] Optionally, the step of inputting the test gas to the throttling component through the gas supply component includes:

[0034] The property information value of the test gas output by the gas supply cylinder group is adjusted through the pressure regulating valve and stored in the gas buffer tank;

[0035] The test gas is input into the throttling component through the gas buffer tank.

[0036] Optionally, before obtaining the attribute information value of the test gas output by the throttling component through the monitoring component, the method includes:

[0037] obtaining, by a monitoring component, a property information value of the test gas before it is input into the throttling component;

[0038] The property information value of the test gas is obtained by the monitoring component during the process of the test gas passing through the throttling component.

[0039] Optionally, after obtaining the attribute information value of the test gas output by the throttling component, the method further includes:

[0040] The flow information of the test gas output by the throttling component is obtained through a monitoring component.

[0041] Optionally, the attribute information value includes a pressure value and / or a temperature value.

[0042] The ground throttling test device provided by the present application includes: an air supply component, a monitoring component, and a throttling component connected to the air supply component; the air supply component outputs test gas to test the throttling component, and the throttling component throttles and reduces the pressure of the test gas flowing through the throttling component; the monitoring component monitors the operating parameters of the throttling component under the test state. In order to smoothly carry out factory testing and reduce the risk of testing, the present application adopts high-pressure nitrogen as the factory test gas source for the ground throttling component to test the ground throttling component, which not only solves the problem of difficulty in selecting the test medium for the throttling component, but also avoids the danger in the testing process, reduces the probability of accidents during the factory testing of the ground throttling component, and ensures the personal safety of the testers. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a structural diagram of a ground throttling test device provided in one embodiment of the present application;

[0044] Figure 2 This is a structural diagram of another ground throttling test device provided in one embodiment of the present application;

[0045] Figure 3 This is a flowchart of another ground throttling test method provided in one embodiment of the present application.

[0046] Reference numerals

[0047] 10-gas supply component, 20-monitoring component, 30-throttling component, 40-bypass component, 11-gas supply bottle group, 12-pressure regulating valve, 13-gas buffer tank, 14-emergency shut-off valve, 15-first bypass gate valve, 16-second bypass gate valve, 17-third bypass gate valve, 201-gas supply pressure gauge, 202-first pressure gauge, 203-first thermometer, 204-pressure gauge before throttling, 205-thermometer before throttling, 206-pressure gauge after throttling, 207-throttling thermometer, 208-pressure gauge after throttling, 209-thermometer after throttling, 210-second pressure gauge, 211-second thermometer, 212-flow meter, 31-throttling component body, 32-ball valve, 33-throttling module. DETAILED DESCRIPTION

[0048] The specific implementation of this application is described below with reference to the accompanying drawings.

[0049] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0050] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the prerequisite for each other's existence.

[0051] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0052] Unless otherwise stated, the numerical ranges herein include not only the entire range between its two endpoints but also the several sub-ranges contained therein.

[0053] In this application, a ground throttling test device is provided, as shown in the attached Figure 1 To the attached Figure 2 As shown, it includes an air supply component 10, a monitoring component 20, and a throttling component 30 connected to the air supply component 10. The throttling component 30 is tested by the air supply component 10 and the monitoring component 20 to determine whether the throttling component 30 can throttle and reduce the pressure of the test gas according to a preset method, thereby ensuring the safety and reliability of the throttling component 30.

[0054] The gas supply component 10 inputs test gas into the throttling component 30 for testing the throttling component 30; the throttling component 30 will perform layer-by-layer throttling and pressure reduction processing on the test gas flowing through the inside of the throttling component 30, thereby achieving the purpose of simulating the throttling and pressure reduction processing of natural gas by throttling and pressure reduction of the test gas, so as to judge the safety and stability of the throttling component 30.

[0055] During the process of throttling and reducing the pressure of the test gas by the throttling component 30, the monitoring component 20 monitors the pressure and temperature of the test gas. The monitoring component 20 may be a plurality of pressure gauges and thermometers. The monitoring component 20 is connected to the throttling component 30 and the gas supply component 10 and is used to monitor changes in the pressure and temperature of the test gas during the process of the gas supply component 10 testing the flow of gas into and out of the throttling component 30. By monitoring the changes in the pressure and temperature of the test gas, it is possible to intuitively determine whether the test of the throttling component 30 by the test gas is successful.

[0056] In order to smoothly carry out factory testing, this application uses the test gas as the factory test gas source for the ground throttling components to simulate natural gas to test the ground throttling components, thereby avoiding the danger during the testing process, reducing the probability of accidents during the factory testing of the ground throttling components, and ensuring the personal safety of the testers.

[0057] In one embodiment of the present application, as shown in the attached Figure 1 To the attached Figure 2 As shown, the gas supply component 10 also includes: a gas supply bottle group 11, a pressure regulating valve 12, a gas buffer tank 13, and an emergency shut-off valve 14, wherein the input end of the pressure regulating valve 12 is connected to the output end of the gas supply bottle group 11 to obtain the test gas output by the gas supply bottle group 11, and the output end of the pressure regulating valve 12 is connected to the input end of the gas buffer tank 13 to input the pressure-regulated test gas into the gas buffer tank 13; the output end of the gas buffer tank 13 is connected to the input end of the emergency shut-off valve 14, and the output end of the emergency shut-off valve 14 is connected to the input end of the throttling component 30.

[0058] In actual application, the gas supply cylinder group 11 is used to store the test gas. The gas supply cylinder group 11 is connected to the pressure regulating valve. When the gas supply cylinder group 11 transports the test gas to the pressure regulating valve 12, the pressure regulating valve 12 will adjust the pressure value of the test gas to a pressure value that meets the test standard.

[0059] The pressure regulating valve 12 is connected to the gas buffer tank 13. The pressure regulating valve 12 will transport the adjusted test gas that meets the test standard pressure value to the gas buffer tank. The gas buffer tank 13 will store the test gas that meets the test standard pressure value and is used to stably provide the throttling component 30 with test gas that meets the test standard pressure value.

[0060] The gas buffer tank 13 is connected to the emergency shut-off valve 14, and the test gas in the gas buffer tank is input into the throttling component 30 through the emergency shut-off valve 14; if it is monitored that the pressure value of the test gas stored in the gas buffer tank 13 is abnormal, the connection between the gas buffer tank 13 and the throttling component 30 is cut off through the emergency shut-off valve 14, so that the test gas is blocked in the gas buffer tank 13 and is no longer transported to the throttling component 30, thereby ensuring the safety of the test and preventing the throttling component 30 from being damaged.

[0061] If it is monitored that the pressure value of the test gas stored in the gas buffer tank 13 is in a normal state, the emergency shut-off valve 14 will be opened, and the test gas in the gas buffer tank 13 will be transported to the throttling component 30 through the emergency shut-off valve 14 for testing the throttling component 30.

[0062] In one embodiment of the present application, as shown in the attached Figure 1 To the attached Figure 2 As shown, the monitoring component 20 also includes: a first pressure gauge 202, a first thermometer 203, a second pressure gauge 210, a second thermometer 211, and a flow meter 212, wherein the input end of the first pressure gauge 202 is connected to the output end of the emergency shut-off valve 14, the output end of the first pressure gauge 202 is connected to the input end of the first thermometer 203, and the output end of the first thermometer 203 is connected to the input end of the throttling component 30; the input end of the second pressure gauge 210 is connected to the output end of the throttling component 30, the output end of the second pressure gauge 210 is connected to the input end of the second thermometer 211, the output end of the second thermometer 211 is connected to the input end of the flow meter 212, and the output end of the flow meter 212 is connected to the vent pipeline to output the depressurized test gas.

[0063] In actual application, the first pressure gauge 202 is arranged between the emergency shut-off valve 14 and the throttling component 30. The first pressure gauge 202 is used to monitor and record the initial pressure value of the test gas before being transported to the throttling component 30 for throttling and pressure reduction test. The initial pressure value monitored by the first pressure gauge 202 can be used to determine the pressure state of the test gas before the test.

[0064] The first thermometer 203 is arranged between the emergency shut-off valve 14 and the throttling component 30. The first thermometer 203 is used to monitor and record the initial temperature value of the test gas before being transported to the throttling component 30 for throttling and pressure reduction test. The initial temperature value monitored by the first thermometer 203 can be used to judge the temperature state of the test gas before the test.

[0065] The second pressure gauge 210 is arranged at the output end of the throttling component 30, and the second pressure gauge 210 is used to monitor and record the pressure value of the test gas after being throttled and reduced in pressure by the throttling component 30; the pressure value of the test gas monitored by the second pressure gauge 210 can be used to determine the pressure state of the test gas after being throttled and reduced in pressure.

[0066] The second thermometer 211 is arranged at the output end of the throttling component 30, and the second thermometer 211 is used to monitor and record the temperature value of the test gas after the throttling and pressure reduction test is performed by the throttling component 30; the temperature value of the test gas monitored by the second thermometer 211 can be used to determine the temperature state of the test gas after the throttling and pressure reduction treatment.

[0067] The flow meter 212 is disposed at the output end of the throttling component 30 , and the flow meter 212 is used to monitor and record the gas volume of the test gas output by the throttling component 30 .

[0068] Furthermore, the test gas outputted by the throttling component 30 is outputted through a venting pipeline connected to the output end of the flow meter 212, thereby achieving venting of the test gas.

[0069] Furthermore, whether the test of the throttling component 30 by the test gas is successful is determined based on the pressure value of the test gas after the throttling and pressure reduction process by the throttling component 30 monitored by the second pressure gauge 210 and the temperature value of the test gas after the throttling and pressure reduction process by the second thermometer 211;

[0070] The pressure value monitored by the second pressure gauge 210 and the temperature value monitored by the second thermometer 211 are compared with the pre-set expected design values. If the pressure value monitored by the second pressure gauge 210 and the temperature value monitored by the second thermometer 211 meet the pre-set design values, the test is determined to be successful; otherwise, it is determined that the test of the throttling component 30 by the test gas has failed.

[0071] The expected design value includes an expected pressure value and / or an expected temperature value. The expected pressure value refers to the pre-designed pressure value of the test gas that the pressure gauge will monitor during the test. The expected temperature value refers to the pre-designed temperature value of the test gas that the thermometer will monitor during the test. In this embodiment, the expected pressure value can be 0.7 MPa; the expected temperature value can be -5.45°C; or the expected pressure value can be 1 MPa, and the expected temperature value can be -1.24°C.

[0072] In actual applications, since different application scenarios require setting different expected design values, when setting the specific numerical value of the expected design value, it can be set according to the specific application scenario, and this embodiment does not make specific limitations here.

[0073] The pressure value monitored by the second pressure gauge 210 and the temperature value monitored by the second thermometer 211 satisfying the pre-designed values may be:

[0074] The pressure value monitored by the second pressure gauge 210 and the temperature value monitored by the second thermometer 211 are compared with the pressure value and temperature value in the pre-designed value; if the pressure value monitored by the second pressure gauge 210 is consistent with the pressure value in the pre-designed value and the temperature value monitored by the second thermometer 211 is higher than the expected temperature value in the pre-designed value, it is determined that the pressure value monitored by the second pressure gauge 210 and the temperature value monitored by the second thermometer 211 meet the pre-designed value.

[0075] In one embodiment of the present application, as shown in the attached Figure 1 To the attached Figure 2 As shown, the throttling component 30 also includes: a ball valve 32, a throttling component body 31, wherein the input end of the ball valve 32 is connected to the input end of the first thermometer 203, and the output end of the ball valve 32 is connected to the input end of the throttling component body 31; the throttling component body 31 includes a plurality of throttling modules 33, and the plurality of throttling modules 33 are arranged at predetermined intervals; each of the throttling modules 33 is provided with a throttling hole.

[0076] In actual application, the ball valve 32 is provided at the input end of the throttle component 30, and is used to receive or block the test gas inputted into the throttle component 30 by the gas supply component 10. If the ball valve 32 is in an open state, the test gas inputted by the gas supply component 10 can be inputted into the throttle component body 31 to test the throttle component body 31. If the ball valve 32 is in a closed state, the test gas inputted by the gas supply component 10 will be blocked outside the throttle component 30 and cannot be delivered to the throttle component body 31.

[0077] A plurality of throttling modules 33 are arranged at predetermined intervals inside the throttling component body 31, and a throttling hole is provided on the throttling module 33. The aperture of the throttling hole gradually decreases along the throttling direction of the throttling component body 31, that is, each throttling orifice plate in the throttling component body 31 can have a different aperture size, and the aperture size is obtained by calculation based on the pressure difference between the two ends of the throttling component body 31.

[0078] The test gas passes through the throttle holes on the multiple throttle modules 33 provided in the throttle component body 31 , thereby achieving throttling and pressure reduction processing of the test gas.

[0079] Furthermore, a heat-insulating layer is provided inside the throttling component 30 , and the heat-insulating layer is made of heat-insulating rock wool to ensure that no temperature loss occurs during the throttling and pressure reduction process of the test gas and is not affected by the external environment.

[0080] In one embodiment of the present application, as shown in the attached Figure 1 To the attached Figure 2 As shown, the monitoring component 20 also includes: a pre-throttling pressure gauge 204, a pre-throttling thermometer 205, a post-throttling pressure gauge 208, and a post-throttling thermometer 209, wherein the input end of the pre-throttling pressure gauge 204 is connected to the output end of the ball valve 32, the output end of the pre-throttling pressure gauge 204 is connected to the input end of the pre-throttling thermometer 205, and the output end of the pre-throttling thermometer 205 is connected to the input end of the throttling component body 31; the input end of the post-throttling pressure gauge 208 is connected to the output end of the throttling component body 31, the output end of the post-throttling pressure gauge 208 is connected to the input end of the post-throttling thermometer 209, and the output end of the post-throttling thermometer 209 is connected to the input end of the second pressure gauge 210.

[0081] In actual application, the pre-throttling pressure gauge 204 is arranged between the ball valve 32 and the throttling component body 31. The pre-throttling pressure gauge 204 is used to monitor and record the pressure value of the test gas before entering the throttling component body 31. The pressure value monitored by the pre-throttling pressure gauge 204 can be used to judge the pressure state of the test gas before entering the throttling component body 31.

[0082] The pre-throttling thermometer 205 is arranged between the ball valve 32 and the throttling component body 31. The pre-throttling thermometer 205 is used to monitor and record the temperature value of the test gas before entering the throttling component body 31. The temperature value monitored by the pre-throttling thermometer 205 can be used to judge the temperature state of the test gas before entering the throttling component body 31.

[0083] The post-throttling pressure gauge 208 is arranged between the throttling component body 31 and the second pressure gauge 210. The post-throttling pressure gauge 208 is used to monitor and record the pressure value of the test gas output by the throttling component body 31. The pressure value monitored by the post-throttling pressure gauge 208 can be used to determine the pressure state of the test gas after throttling and pressure reduction treatment by the throttling component body 31.

[0084] The post-throttling thermometer 209 is arranged between the throttling component body and the second pressure gauge 210. The post-throttling thermometer is used to monitor and record the temperature value of the test gas output by the throttling component body. The pressure value monitored by the post-throttling thermometer can be used to judge the temperature state of the test gas after throttling and pressure reduction treatment by the throttling component body 31.

[0085] In one embodiment of the present application, as shown in the attached Figure 1 To the attached Figure 2 As shown, the monitoring component 20 further includes: a plurality of throttling pressure gauges 206 and a plurality of throttling thermometers 207 , wherein the plurality of throttling pressure gauges 206 and the plurality of throttling thermometers 207 are arranged between the plurality of throttling modules 33 arranged at predetermined intervals.

[0086] In actual application, the throttling pressure gauge 206 is used to monitor the pressure value of the test gas between the throttling modules 33. The pressure value monitored by the throttling pressure gauge 206 can be used to determine the change in the pressure value of the test gas during the throttling and pressure reduction process of the test gas by the throttling component body 31. In the event of test failure, the cause of the failure can be clearly observed through the change in the pressure value, which facilitates the tester to adjust the throttling component.

[0087] The throttling thermometer 207 is used to monitor the temperature value of the test gas between the throttling modules 33. The temperature value monitored by the throttling thermometer can be used to determine the change in the temperature value of the test gas during the throttling and pressure reduction process of the test gas by the throttling component body 31. In the event of test failure, the cause of the failure can be clearly observed through the change in the temperature value, which facilitates the tester to adjust the throttling component.

[0088] In one embodiment of the present application, as shown in the attached Figure 1 To the attached Figure 2 As shown, the monitoring component 20 further includes a gas supply pressure gauge 201 , and the gas supply pressure gauge 201 is connected to the gas buffer tank 13 .

[0089] In actual application, the gas supply pressure gauge 201 is used to monitor the pressure value of the test gas in the gas buffer tank 13. If the pressure value of the test gas in the gas buffer tank 13 is abnormal, the emergency shut-off valve 14 is closed to cut off the connection between the gas buffer tank 13 and the throttling module 33.

[0090] In one embodiment of the present application, as shown in the attached Figure 1 To the attached Figure 2As shown, it also includes a bypass component 40, wherein the bypass component 40 includes a first bypass gate valve 15, a second bypass gate valve 16, and a third bypass gate valve 17; the first bypass gate valve 15 is arranged between the first thermometer 203 and the throttling component 30, the input end of the first bypass gate valve 15 is connected to the output end of the first thermometer 203, and the output end of the first bypass gate valve 15 is connected to the input end of the throttling component 30; the second bypass gate valve 16 is arranged between the throttling component 30 and the second pressure gauge 210, the input end of the second bypass gate valve 16 is connected to the output end of the throttling component 30, and the output end of the second bypass gate valve 16 is connected to the input end of the second pressure gauge 210; the input end of the third bypass gate valve 17 is connected to the output end of the first thermometer 203, and the output end of the third bypass gate valve 17 is connected to the input end of the second pressure gauge 210.

[0091] In actual application, the bypass component 40 is used to cut off the connection between the test gas and the throttling component 30 when installing and disassembling the throttling component 30, so that the test gas is transported from the bypass component 40 to the vent line to vent the test gas.

[0092] When the first bypass gate valve 15 and the second bypass gate valve 16 are in the closed state and the third bypass gate valve 17 is in the open state, the connection between the test gas and the throttling component 30 will be cut off, which facilitates the installation and disassembly of the throttling component 30. The test gas is input into the vent line through the bypass branch for venting.

[0093] When the first bypass gate valve 15 and the second bypass gate valve 16 are in the open state and the third bypass gate valve 17 is in the closed state, the test gas can be input into the throttling component 30 to test it.

[0094] In order to smoothly carry out factory testing and reduce the risk of testing, this application uses test gas as the factory test gas source for ground throttling components to simulate natural gas for testing ground throttling components. This not only solves the problem of difficulty in selecting the test medium for throttling components, but also avoids the danger in the testing process, reduces the probability of accidents when the factory tests the ground throttling components, and ensures the personal safety of the testers.

[0095] In this application, a ground throttling test method is provided, as shown in the attached Figure 3 As shown, the specific steps include the following steps.

[0096] Step 302: Input the test gas into the throttling component through the gas supply component.

[0097] Specifically, the test gas is a gas used to simulate natural gas to test the throttling component. In the embodiment of the present application, the test gas may be high-pressure nitrogen. The throttling component is a device that throttles and reduces the pressure of the natural gas flowing through the throttling component.

[0098] In practical applications, the gas supply component inputs stable test gas that meets the test standards into the throttling component to test the throttling component.

[0099] For example, during the process of testing the throttling component by simulating natural gas with nitrogen, the gas supply component is connected to the throttling component, and the gas supply component inputs the internally stored test nitrogen into the throttling component, and the safety and stability of the throttling component are tested by using nitrogen to simulate natural gas.

[0100] In one embodiment provided in the present application, the inputting of test gas to the throttling component through the gas supply component includes: adjusting the attribute information value of the test gas output by the gas supply bottle group through a pressure regulating valve, and storing it in a gas buffer tank; and inputting the test gas to the throttling component through the gas buffer tank.

[0101] Specifically, the gas supply cylinder group refers to a cylinder group used to store test gas; the pressure regulating valve refers to a valve that regulates the pressure of the test gas output by the gas supply cylinder group, and the pressure regulating valve adjusts the pressure of the test gas to the test standard pressure and stores it in the gas buffer tank; the gas buffer tank refers to a storage tank that stores the test gas output by the pressure regulating valve.

[0102] In actual applications, a large amount of test gas is stored in the gas supply cylinder group as a test gas source. The pressure regulating valve adjusts the pressure of the test gas output by the gas supply cylinder group to reach a pressure that meets the test standard, and stores the test gas in the gas buffer tank. The gas buffer tank stably delivers the test gas to the throttling component.

[0103] For example, during the process of testing the throttle component using nitrogen to simulate natural gas, the gas supply cylinder assembly stores a large amount of high-pressure nitrogen as the gas source for testing the throttle component. The gas supply cylinder assembly outputs the high-pressure nitrogen to the pressure regulating valve, which then reduces the pressure of the high-pressure nitrogen to a test nitrogen pressure that meets the test standards. The test nitrogen is then stored in a gas buffer tank connected to the throttle component, which steadily supplies the test nitrogen to the throttle component.

[0104] In one embodiment provided by the present application, before obtaining the attribute information value of the test gas output by the throttling component through the monitoring component, it includes: obtaining the attribute information value of the test gas before it is input into the throttling component through the monitoring component, and obtaining the attribute information value of the test gas during the process of the test gas passing through the throttling component through the monitoring component.

[0105] Specifically, the monitoring component refers to a component that monitors the attribute information value of the test gas during the test of the throttling component. In the embodiment of the present application, the monitoring component may include multiple pressure gauges and / or multiple thermometers and / or flow meters, etc. The attribute information value refers to the attribute information of the test gas monitored by the monitoring component. In the embodiment of the present application, the attribute information value may include a pressure value and / or a temperature value and / or the amount of gas output by the throttling component, etc.

[0106] In actual application, during the test of the throttling component, the monitoring component obtains the attribute information value of the test gas before it is input into the throttling component. Through the attribute information value, the pressure value and / or temperature value of the test gas entering the throttling component can be obtained, that is, the attribute information value of the test gas before it is input into the throttling component is obtained.

[0107] During the process of testing the throttling component, the monitoring component can also obtain the attribute information value of the test gas inside the throttling component. Through the attribute information value, the changes in the pressure value and temperature value of the test gas in the process of throttling and reducing the pressure of the test gas by the throttling component can be obtained, that is, the attribute information value of the test gas in the process of the test gas passing through the throttling component can be obtained.

[0108] For example, during the process of testing the throttling component by simulating natural gas with nitrogen, the monitoring component can monitor the pressure value and temperature value of the test nitrogen before entering the throttling component through the pressure gauge and thermometer provided at the input end of the throttling component, so that the tester can obtain the initial pressure value and initial temperature value of the test nitrogen.

[0109] The monitoring component can monitor the pressure value and temperature value of the test nitrogen inside the throttling component through the pressure value and thermometer provided inside the throttling component, so that the tester can obtain the changes in the pressure value and temperature value of the test nitrogen during the process of throttling and reducing the pressure of the test nitrogen by the throttling component. In the event of test failure, the cause of the failure can be clearly observed through the changes in the pressure value and the temperature value, which facilitates the tester to adjust the throttling component.

[0110] Step 304: Obtain the attribute information value of the test gas output by the throttling component through the monitoring component.

[0111] In actual application, the throttling component throttles and reduces the pressure of the test gas flowing through the throttling component, and the monitoring component obtains the property information value of the test gas output by the throttling component through a pressure gauge and a thermometer provided at the output end of the throttling component.

[0112] In one embodiment provided in the present application, after obtaining the attribute information value of the test gas output by the throttling component through the monitoring component, the method further includes: obtaining flow information of the test gas output by the throttling component through the monitoring component.

[0113] Specifically, the flow information refers to the gas volume of the test gas output by the throttling component.

[0114] In practical applications, the monitoring component obtains the gas volume of the test gas output by the throttling component through a flow meter provided at the output end of the throttling component.

[0115] Step 306: Determine whether the attribute information value satisfies a preset test information value, and determine whether the test is successful based on the determination result.

[0116] Specifically, the test information value refers to a pre-set value used to determine whether the test of the throttling component using the test gas is successful. In one embodiment of the present application, the test information value may include a test pressure value and / or a test temperature value. The test pressure value may be 0.7 MPa, and the test temperature value may be -5.45°C.

[0117] Based on this, the attribute information value of the test gas output by the throttling component obtained by the monitoring component is compared with the test information value. If the attribute information value meets the test information value, it is determined that the test of the throttling component through the test gas is successful; otherwise, it is a failure.

[0118] In actual applications, since different application scenarios require setting different expected design values, when setting the specific numerical value of the expected design value, it can be set according to the specific application scenario, and this embodiment does not make specific limitations here.

[0119] For example, during the process of testing the throttling component using nitrogen to simulate natural gas, the monitoring component can monitor the post-test pressure value and post-test temperature value of the test nitrogen gas after throttling and reducing the pressure through the throttling component through a pressure gauge and a thermometer provided at the output end of the throttling component; and compare the post-test pressure value and the post-test temperature value with pre-set test information values, which may include pressure and temperature values. The pressure value may be 0.7 MPa, and the temperature value may be -5.45°C. If the post-test pressure value of the test nitrogen gas is 0.7 MPa and the post-test temperature value of the test nitrogen gas is higher than -5.45°C, then the test of the throttling component using nitrogen to simulate natural gas is determined to be successful; otherwise, the test of the throttling component using nitrogen to simulate natural gas is determined to be a failure.

[0120] In order to smoothly carry out factory testing and reduce the risk of testing, this application uses high-pressure nitrogen as the factory test gas source for ground throttling components to test the ground throttling components. This not only solves the problem of difficulty in selecting the test medium for the throttling components, but also avoids the danger in the testing process, reduces the probability of accidents when the factory tests the ground throttling components, and ensures the personal safety of the testers.

[0121] Taking the application of the ground throttling test device provided in this application in the testing scenario of the ground throttling device by simulating natural gas with nitrogen as an example, the ground throttling test device is further explained, which specifically includes the following steps.

[0122] Step 402: The gas supply component inputs test nitrogen into the ground throttling device.

[0123] The gas supply component includes a high-pressure nitrogen cylinder group, a pressure regulating valve and a nitrogen buffer tank; the high-pressure nitrogen cylinder group stores high-pressure nitrogen, which is used to provide test nitrogen for testing the ground throttling device by simulating natural gas with nitrogen.

[0124] The high-pressure nitrogen cylinder group delivers high-pressure nitrogen to the pressure regulating valve, and the pressure regulating valve reduces the pressure of the received high-pressure nitrogen, adjusts the high-pressure nitrogen to test nitrogen that meets the test standards, and stores it in the nitrogen buffer tank; the nitrogen buffer tank is connected to the ground throttling device and stably delivers the stored test nitrogen to the ground throttling device, and the ground throttling device is tested by simulating natural gas with the test nitrogen.

[0125] Step 404: The monitoring component obtains the pressure value and temperature value of the test nitrogen output by the ground throttling device.

[0126] The monitoring component includes a plurality of pressure gauges, a plurality of thermometers and a flow meter. The plurality of pressure gauges and the plurality of thermometers are arranged at the input end, the output end and the interior of the ground throttling device.

[0127] The initial pressure and initial temperature of the test nitrogen before entering the ground throttling device are monitored and recorded by means of a pressure gauge and thermometer provided at the output end of the ground throttling device; the changes in the pressure and temperature of the test nitrogen during the throttling and pressure reduction process of the test nitrogen by the ground throttling device are monitored and recorded by means of a pressure gauge and thermometer provided inside the ground throttling device; the pressure and temperature of the test nitrogen output by the ground throttling device, as well as the gas volume of the test nitrogen output by the ground throttling device, are monitored and recorded by means of a pressure gauge, thermometer and flow meter provided at the output end of the ground throttling device.

[0128] Step 406: Determine whether the test is successful based on the pressure and temperature of the test nitrogen output by the ground throttling device.

[0129] The pressure and temperature of the test nitrogen output by the ground throttling device are obtained by a pressure gauge and a thermometer provided at the output end of the ground throttling device, and compared with a preset test value; the preset test value may include a preset pressure value and a preset temperature value, the preset pressure value may be 0.7 MPa, and the preset temperature value may be -5.45°C.

[0130] If the pressure and temperature of the test nitrogen gas output by the ground throttling device meet the pre-set test values, the test of the ground throttling device using nitrogen to simulate natural gas is determined to be successful; otherwise, it is considered a failure. For example, if the pressure of the test nitrogen gas output by the ground throttling device is equal to 0.7 MPa and the temperature of the test nitrogen gas output by the ground throttling device is higher than -5.45°C, the test of the ground throttling device using nitrogen to simulate natural gas is determined to be successful; otherwise, the test of the ground throttling device using nitrogen to simulate natural gas is determined to be a failure.

[0131] In order to smoothly carry out factory testing and reduce the risk of testing, this application uses high-pressure nitrogen as the factory test gas source for ground throttling components to test the ground throttling components. This not only solves the problem of difficulty in selecting the test medium for the throttling components, but also avoids the danger in the testing process, reduces the probability of accidents when the factory tests the ground throttling components, and ensures the personal safety of the testers.

[0132] It should be noted that the high-pressure nitrogen mentioned in the embodiments of the present application is only used as an example to explain the present application in detail, and the present application does not specifically limit the type of gas used as the test gas.

[0133] The preferred specific implementation methods and embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods and embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the concept of the present application.

Claims

1. A ground throttling test device, characterized in that: include: An air supply component (10), a monitoring component (20), and a throttling component (30) connected to the air supply component (10); The gas supply component (10) outputs test gas to test the throttling component (30), and the throttling component (30) throttles and reduces the pressure of the test gas flowing through the throttling component (30); The monitoring component (20) further includes: a first pressure gauge (202), a first thermometer (203), a second pressure gauge (210), a second thermometer (211), and a flow meter (212); The first pressure gauge (202) is used to monitor and record the initial pressure value of the test gas before being delivered to the throttling component (30) for throttling and pressure reduction testing; the first thermometer (203) is used to monitor and record the initial temperature value of the test gas before being delivered to the throttling component (30) for throttling and pressure reduction testing; the second pressure gauge (210) is used to monitor and record the pressure value of the test gas after being throttled and pressure reduced by the throttling component (30); the second thermometer (211) is used to monitor and record the temperature value of the test gas after being throttled and pressure reduced by the throttling component (30); and the flow meter (212) is used to monitor and record the gas volume of the test gas output by the throttling component (30); If the pressure value monitored by the second pressure gauge (210) and the temperature value monitored by the second thermometer (211) meet the preset test information values, the test is determined to be successful; otherwise, it is determined that the test of the throttling component (30) by the test gas has failed.

2. The ground throttling test device according to claim 1, characterized in that: The gas supply component (10) further includes: a gas supply bottle group (11), a pressure regulating valve (12), a gas buffer tank (13), and an emergency shut-off valve (14), wherein: The input end of the pressure regulating valve (12) is connected to the output end of the gas supply bottle group (11) to obtain the test gas output by the gas supply bottle group (11), and the output end of the pressure regulating valve (12) is connected to the input end of the gas buffer tank (13) to input the pressure-regulated test gas into the gas buffer tank (13); The output end of the gas buffer tank (13) is connected to the input end of the emergency shut-off valve (14), and the output end of the emergency shut-off valve (14) is connected to the input end of the throttling component (30).

3. The ground throttling test device according to claim 2, characterized in that: The input end of the first pressure gauge (202) is connected to the output end of the emergency shut-off valve (14), the output end of the first pressure gauge (202) is connected to the input end of the first thermometer (203), and the output end of the first thermometer (203) is connected to the input end of the throttling component (30); The input end of the second pressure gauge (210) is connected to the output end of the throttling component (30), the output end of the second pressure gauge (210) is connected to the input end of the second thermometer (211), the output end of the second thermometer is connected to the input end of the flow meter (212), and the output end of the flow meter (212) is connected to the vent line to output the depressurized test gas.

4. The ground throttling test device according to claim 3, characterized in that: The throttling component (30) further includes: a ball valve (32), a throttling component body (31), wherein: The input end of the ball valve (32) is connected to the input end of the first thermometer (203), and the output end of the ball valve (32) is connected to the input end of the throttling component body (31); The throttling component body (31) comprises a plurality of throttling modules (33), wherein the plurality of throttling modules (33) are arranged at predetermined intervals; and each of the throttling modules (33) is provided with a throttling hole.

5. The ground throttling test device according to claim 4, characterized in that: The monitoring component (20) further includes: a pre-throttling pressure gauge (204), a pre-throttling thermometer (205), a post-throttling pressure gauge (208), and a post-throttling thermometer (209), wherein: The input end of the pre-throttle pressure gauge (204) is connected to the output end of the ball valve (32), the output end of the pre-throttle pressure gauge (204) is connected to the input end of the pre-throttle thermometer (205), and the output end of the pre-throttle thermometer (205) is connected to the input end of the throttling component body (31); The input end of the post-throttling pressure gauge (208) is connected to the output end of the throttling component body (31), the output end of the post-throttling pressure gauge (208) is connected to the input end of the post-throttling thermometer (209), and the output end of the post-throttling thermometer (209) is connected to the input end of the second pressure gauge (210).

6. The ground throttling test device according to claim 4, characterized in that: The monitoring component (20) further includes: a plurality of throttling pressure gauges (206) and a plurality of throttling thermometers (207), wherein: The plurality of throttling pressure gauges (206) and the plurality of throttling thermometers (207) are arranged between the plurality of throttling modules (33) arranged at predetermined intervals.

7. The ground throttling test device according to claim 2, characterized in that: The monitoring component (20) further includes: A gas supply pressure gauge (201), the gas supply pressure gauge (201) is connected to the gas buffer tank (13).

8. The ground throttling test device according to claim 2, characterized in that: It also includes a bypass component (40), wherein the bypass component (40) includes a first bypass gate valve (15), a second bypass gate valve (16), and a third bypass gate valve (17); The first bypass gate valve (15) is arranged between the first thermometer (203) and the throttling component (30), the input end of the first bypass gate valve (15) is connected to the output end of the first thermometer (203), and the output end of the first bypass gate valve (15) is connected to the input end of the throttling component (30); The second bypass gate valve (16) is arranged between the throttling component (30) and the second pressure gauge (210), the input end of the second bypass gate valve (16) is connected to the output end of the throttling component (30), and the output end of the second bypass gate valve (16) is connected to the input end of the second pressure gauge (210); The input end of the third bypass gate valve (17) is connected to the output end of the first thermometer (203), and the output end of the third bypass gate valve (17) is connected to the input end of the second pressure gauge (210).

9. A ground throttling test method, applied to the ground throttling test device according to any one of claims 1 to 8, characterized in that: include: Inputting test gas into the throttling component through the gas supply component; Acquiring attribute information values of the test gas output by the throttling component through a monitoring component, wherein the attribute information values include a pressure value and a temperature value; Determining whether the attribute information value satisfies a preset test information value, and determining whether the test is successful based on the determination result; If the attribute information value satisfies the pre-set test information value, the test is determined to be successful; Otherwise, it is determined that the test of the throttle component by the test gas has failed.

10. The ground throttling test method according to claim 9, characterized in that: The step of inputting the test gas to the throttling component through the gas supply component comprises: The property information value of the test gas output by the gas supply cylinder group is adjusted through the pressure regulating valve and stored in the gas buffer tank; The test gas is input into the throttling component through the gas buffer tank.

11. The ground throttling test method according to claim 9, characterized in that: Before obtaining the attribute information value of the test gas output by the throttling component through the monitoring component, the method includes: obtaining, by a monitoring component, a property information value of the test gas before it is input into the throttling component; The property information value of the test gas is obtained by the monitoring component during the process of the test gas passing through the throttling component.

12. The ground throttling test method according to claim 9, characterized in that: After obtaining the attribute information value of the test gas output by the throttling component through the monitoring component, the method includes: The flow information of the test gas output by the throttling component is obtained through a monitoring component.

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