Test device for simulating valve working state in underwater environment

Abstract

The present invention is a test device for simulating the working state of a valve in an underwater environment, comprising a test chamber with an accommodating chamber formed therein, the accommodating chamber is filled with water, one end of a first pressure pipeline and a second pressure pipeline are both connected to the accommodating chamber, one end of a third pressure pipeline and a fourth pressure pipeline are respectively connected to the inlet and outlet of the underwater valve, the other ends of the first pressure pipeline, the second pressure pipeline and the third pressure pipeline are all extended to the outside of the accommodating chamber, and the first pressure pipeline is connected to a first pressure supply device, and the third pressure pipeline is connected to a second pressure supply device. The present invention solves the technical problem of lack of underwater test equipment for testing the performance of underwater valves.

Description

Technical Field

[0001] The invention relates to the field of deepwater oil and gas drilling equipment, and in particular to a test device for simulating the working state of a valve in an underwater environment. Background Art

[0002] With the development of offshore oil and gas development technology, offshore drilling and oil production equipment will gradually be localized. Offshore oil production is an industry with extremely high safety risks. The safety and reliability of marine underwater products are important assessment indicators for marine equipment, and are also necessary conditions for building user confidence and forming product development. As an important component of the underwater wellhead, the performance of the underwater valve will directly affect the performance of the underwater wellhead.

[0003] At present, my country's testing supporting conditions are seriously insufficient, which makes it impossible to effectively verify product performance, so that many research results can only remain in words or on paper. Even if a product is made, it cannot be verified by underwater testing. There is no simulation test method as a test, which brings huge obstacles to the development and trial of underwater valves.

[0004] With regard to the problem of lack of underwater test equipment for testing the performance of underwater valves in related technologies, no effective solution has been given so far.

[0005] Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a test device for simulating the working state of a valve in an underwater environment to overcome the defects of the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide a test device for simulating the working state of a valve in an underwater environment, which can perform a high-pressure test on the underwater environment in which the underwater valve works. The device has a simple structure, is easy to operate, and has high safety. The device can also ensure that the test meets the standards of the underwater valve working environment, and provide effective data support and reference for the development and trial use of underwater valves, which is conducive to promoting the research and development of underwater valves.

[0007] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0008] The present invention provides a test device for simulating the working state of a valve in an underwater environment, the test device for simulating the working state of a valve in an underwater environment comprises a test chamber, a containing chamber simulating an underwater environment is formed inside the test chamber, the containing chamber is filled with water, a first pressure pipeline and a second pressure pipeline for cooperating to adjust the test pressure in the containing chamber are arranged on the test chamber, one end of the first pressure pipeline and one end of the second pressure pipeline are both connected to the inside of the containing chamber, the other end of the first pressure pipeline and the other end of the second pressure pipeline are both extended to the outside of the containing chamber, and the first pressure pipeline is connected to a first pressure supply device;

[0009] The underwater valve to be tested is placed in the accommodating chamber, and a driving device for controlling the switching action of the underwater valve is also provided in the accommodating chamber. The inlet and outlet ends of the underwater valve are respectively connected to one end of a third pressure pipeline and one end of a fourth pressure pipeline. The other end of the third pressure pipeline extends to the outside of the accommodating chamber, and the third pressure pipeline is connected to a second pressure supply device.

[0010] In a preferred embodiment of the present invention, the test device for simulating the working state of the valve in the underwater environment also includes a data acquisition device for collecting the working state data of the underwater valve, and the data acquisition device is arranged outside the accommodating chamber, and the data receiving end of the data acquisition device is connected to the data output end of the driving device, the data output end of the first pressure supply device and the data output end of the second pressure supply device.

[0011] In a preferred embodiment of the present invention, the test cabin includes a cabin body and a hatch cover, the cabin body is a cylindrical structure with an opening at the top and a sealed bottom, the hatch cover is arranged at the top opening of the cabin body to enclose the accommodating cavity between the bottom of the hatch cover and the inner wall of the cabin body, and a plurality of first bolts are connected between the hatch cover and the cabin body.

[0012] In a preferred embodiment of the present invention, a first sealing gasket is sandwiched between the cabin body and the cabin cover.

[0013] In a preferred embodiment of the present invention, a first through hole and a second through hole are provided on the side wall of the cabin body, and a first sealing flange and a second sealing flange are provided at the first through hole and the second through hole respectively, the first pressure line and the third pressure line both pass through the first sealing flange and extend into the accommodating cavity through the first through hole, and the second pressure line and the fourth pressure line both pass through the second sealing flange and extend into the accommodating cavity through the second through hole.

[0014] In a preferred embodiment of the present invention, a second sealing gasket is sandwiched between the cabin body and the first sealing flange and between the cabin body and the second sealing flange.

[0015] In a preferred embodiment of the present invention, a plurality of second bolts are respectively connected between the first sealing flange and the cabin body, and between the second sealing flange and the cabin body.

[0016] In a preferred embodiment of the present invention, the test cabin is provided with an exhaust pipe for exhausting the air in the accommodating chamber, the exhaust pipe is located at the top of the test cabin, one end of the exhaust pipe is connected to the top of the accommodating chamber, the other end of the exhaust pipe passes through the top wall of the test cabin and extends to the top of the test cabin, and an exhaust valve is provided on the exhaust pipe.

[0017] In a preferred embodiment of the present invention, the driving device is a driving cylinder, the interior of the driving cylinder is divided into a rod chamber and a rodless chamber by a piston, a piston rod is provided in the rod chamber, one end of the piston rod is connected to the piston, and the other end of the piston rod extends to the outside of the driving cylinder and is connected to the internal valve body of the underwater valve.

[0018] In a preferred embodiment of the present invention, the driving cylinder is a hydraulic cylinder, and a first hydraulic pipeline and a second hydraulic pipeline are arranged on the hydraulic cylinder, one end of the first hydraulic pipeline is connected to the rodless chamber, the other end of the first hydraulic pipeline extends to the outside of the accommodating chamber and is connected to the hydraulic adjustment device, one end of the second hydraulic pipeline is connected to the rod chamber, and the other end of the second hydraulic pipeline extends to the outside of the accommodating chamber.

[0019] In a preferred embodiment of the present invention, a support frame is provided inside the accommodating cavity, and the underwater valve is placed on the top of the support frame.

[0020] In a preferred embodiment of the present invention, the support frame is a plate-like structure arranged in a horizontal direction, the edge of the support frame is connected to the inner wall of the accommodating cavity, and a plurality of reinforcing ribs are arranged below the support frame, and each of the reinforcing ribs is respectively connected to the bottom of the support frame and the inner wall of the accommodating cavity.

[0021] In a preferred embodiment of the present invention, the test device for simulating the working state of the valve in the underwater environment also includes a drain pipeline, which is located at the bottom of the test chamber, one end of the drain pipeline is connected to the bottom of the accommodating chamber, and the other end of the drain pipeline passes through the bottom wall of the test chamber and extends to the bottom of the test chamber, and a drain valve is provided on the drain pipeline.

[0022] In a preferred embodiment of the present invention, the test device for simulating the working state of the valve in the underwater environment also includes a pressure regulating pipeline, which is arranged on the side wall of the test chamber, one end of the pressure regulating pipeline is connected to the accommodating chamber, and the other end of the pressure regulating pipeline passes through the side wall of the test chamber and extends to the outside of the test chamber, and a safety valve is arranged on the pressure regulating pipeline.

[0023] In a preferred embodiment of the present invention, the first pressure supply device and the second pressure supply device are both arranged outside the accommodating chamber.

[0024] As described above, the characteristics and advantages of the test device for simulating the working state of a valve in an underwater environment of the present invention are: a accommodating chamber filled with water is formed inside the test chamber, and the underwater valve to be tested is placed in the water environment in the accommodating chamber; a first pressure pipeline and a second pressure pipeline connected to the accommodating chamber are arranged on the test chamber; the accommodating chamber can be pressurized and depressurized by the first pressure pipeline and the second pressure pipeline according to the needs of the test pressure, thereby controlling the pressure of the water environment in the accommodating chamber, meeting different test requirements, and increasing the scope of application of the present invention. In addition, the inlet and outlet ends of the underwater valve to be tested are respectively connected to the third pressure pipeline and the fourth pressure pipeline, so that the internal part of the underwater valve can be pressurized and relieved, thereby controlling the working pressure of the underwater valve. By collecting the underwater environmental pressure, the working pressure of the underwater valve and the number of times the underwater valve is opened and closed by the driving equipment per unit time, the working state and performance of the underwater valve in underwater environments with different pressures can be understood. The present application has a simple structure, easy operation and high safety. The data obtained is highly accurate and can provide effective data support and reference for the development and trial of underwater valves, which will help promote the research and development of underwater valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0026] in:

[0027] Figure 1 : It is a structural schematic diagram of a test device for simulating the working state of a valve in an underwater environment according to the present invention.

[0028] Figure 2 : It is a structural schematic diagram of an implementation method of a test device for simulating the working state of a valve in an underwater environment of the present invention.

[0029] Figure 3 : It is a structural schematic diagram of a test chamber in a test device for simulating the working state of a valve in an underwater environment of the present invention.

[0030] Figure 4 : It is a structural schematic diagram of an underwater valve in the prior art.

[0031] Figure 5 : This is the electrical structure block diagram of the test device for simulating the working state of the valve in the underwater environment of the present invention.

[0032] The accompanying drawings in the present invention are:

[0033] 1. Test chamber; 101. Chamber;

[0034] 102. hatch cover; 103. accommodating cavity;

[0035] 104, a first through hole; 105, a second through hole;

[0036] 106. a first sealing flange; 107. a second sealing flange;

[0037] 108. a first bolt; 109. a second bolt;

[0038] 2. Support frame; 201. Reinforcement ribs;

[0039] 3. The first pressure pipeline; 4. The third pressure pipeline;

[0040] 5. Fourth pressure pipeline; 6. Second pressure pipeline;

[0041] 7. Data acquisition equipment; 8. First hydraulic pipeline;

[0042] 9. Second hydraulic pipeline; 10. Hydraulic adjustment equipment;

[0043] 11. Safety valve; 12. Pressure regulating pipeline;

[0044] 13. Exhaust pipeline; 14. Exhaust valve;

[0045] 15. Drainage pipeline; 16. Drainage valve;

[0046] 17. Underwater valve; 1701. Inlet port;

[0047] 1702, outlet port; 18, driving device;

[0048] 1801, piston rod; 19, second pressure supply device;

[0049] 20. The first pressure supply device. DETAILED DESCRIPTION

[0050] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0051] like Figures 1 to 5As shown, the present invention provides a test device for simulating the working state of a valve in an underwater environment, the test device for simulating the working state of a valve in an underwater environment comprises a test cabin 1, a containing chamber 103 is formed inside the test cabin 1, the containing chamber 103 is filled with water, so as to simulate the underwater environment in the containing chamber 103, a first pressure pipeline 3 and a second pressure pipeline 6 are arranged on the test cabin 1, one end of the first pressure pipeline 3 and one end of the second pressure pipeline 6 are both connected to the inside of the containing chamber 103, the other end of the first pressure pipeline 3 and the other end of the second pressure pipeline 6 are both extended to the outside of the containing chamber 103, and the first pressure pipeline 3 is connected to the first pressure supply device 20, the containing chamber 103 can be pressurized through the first pressure pipeline 3, the containing chamber 103 is depressurized through the second pressure pipeline 6, and then the first pressure pipeline 3 and the second pressure pipeline 6 cooperate to achieve the purpose of pressure relief. The purpose of adjusting the test pressure in the accommodating chamber 103 is to simulate the underwater pressure environment caused by the deep sea water depth that the underwater valve is subjected to; the underwater valve 17 to be tested is placed in the accommodating chamber 103, and a driving device 18 for controlling the switching action of the underwater valve 17 is also arranged in the accommodating chamber 103, the inlet end 1701 of the underwater valve 17 is connected to one end of the third pressure pipeline 4, and the outlet end 1702 of the underwater valve 17 is connected to one end of the fourth pressure pipeline 5, and the other end of the third pressure pipeline 4 extends to the outside of the accommodating chamber 103, and the third pressure pipeline 4 can be used to pressurize the underwater valve 17, and the fourth pressure pipeline 5 can be used to relieve the pressure of the underwater valve 17, and then the third pressure pipeline 4 and the fourth pressure pipeline 5 can be used to cooperate to achieve the purpose of adjusting the working pressure in the underwater valve 17, thereby simulating the working state of the underwater valve 17. Among them, the other end of the fourth pressure pipeline 5 can extend to the outside of the accommodating chamber 103, and can also be located inside the accommodating chamber 103. When the other end of the fourth pressure pipeline 5 can extend to the outside of the accommodating chamber 103, the internal pressure of the underwater valve 17 is directly released to the outside; when the other end of the fourth pressure pipeline 5 is located inside the accommodating chamber 103, the pressure relief of the underwater valve 17 can be used to pressurize the interior of the accommodating chamber 103, and then be used to increase the pressure of the underwater environment.

[0052] The present invention forms a accommodating chamber 103 filled with water inside the test chamber 1, and places the underwater valve 17 to be tested in the water environment in the accommodating chamber 103. The test chamber 1 is provided with a first pressure pipeline 3 and a second pressure pipeline 6 connected with the accommodating chamber 103. The first pressure pipeline 3 and the second pressure pipeline 6 can be used to adjust the pressure of the accommodating chamber 103 according to the needs of the test pressure, thereby controlling the pressure of the water environment in the accommodating chamber 103, meeting different test requirements, and increasing the scope of application of the present invention. In addition, the inlet end 1701 and the outlet end 1702 of the underwater valve 17 to be tested are respectively connected to the third pressure pipeline 4 and the fourth pressure pipeline 5, so that the internal part of the underwater valve 17 can be pressurized and depressurized, thereby controlling the working pressure of the underwater valve 17. By collecting the underwater environmental pressure, the working pressure of the underwater valve 17 and the number of times the driving device 18 controls the underwater valve 17 to open and close per unit time, the working state and performance of the underwater valve 17 in underwater environments with different pressures can be understood. The present application has a simple structure, easy operation, high safety, and high accuracy of the data obtained, which can provide effective data support and reference for the development and trial use of underwater valves.

[0053] In an optional embodiment of the present invention, Figure 1 , Figure 5 As shown, the test device for simulating the working state of the valve in the underwater environment also includes a data acquisition device 7, which is used to collect the working state data of the underwater valve 17. The data acquisition device 7 is arranged outside the accommodating chamber 103, and the data receiving end of the data acquisition device 7 is connected to the data output end of the driving device 18, the data output end of the first pressure supply device 20, and the data output end of the second pressure supply device 19. The data acquisition device 7 can receive and store data such as the pressure value of the underwater environment, the working pressure value of the underwater valve 17, and the number of times the driving device 18 controls the underwater valve 17 to open and close within a unit time, so that the data can be presented to the outside more intuitively, which is convenient for the staff to record and analyze the data, and the degree of automation is greatly improved.

[0054] Furthermore, the data acquisition device 7 is a controller, and a timer and a counter are provided in the controller. The timer can time the time required for the underwater valve 17 to change from the open state to the closed state or from the closed state to the open state, and the counter can count the number of times the underwater valve 17 changes from the open state to the closed state or from the closed state to the open state in a unit time, thereby realizing the automatic opening and closing, automatic timing and counting functions of the underwater valve 17 during the test. The data acquisition device 7 can convert the environmental pressure and working pressure to which the underwater valve 17 is subjected to into a real-time curve of pressure change for display and recording, so that the time required for the underwater valve 17 to change from the open state to the closed state or from the closed state to the open state in the underwater environment of the pressure and the working pressure state can be adjusted according to the acquired data, so as to ensure that the underwater valve 17 can work stably in the pressure environment.

[0055] Furthermore, the first pressure supply device 20 and the second pressure supply device 19 are both arranged outside the accommodating cavity, and the first pressure supply device 20 and the second pressure supply device 19 can be but are not limited to liquid pumps or air pumps.

[0056] Furthermore, a first pressure sensor may be arranged inside the accommodating chamber 103, and a second pressure sensor may be arranged inside the underwater valve 17. The data output end of the first pressure sensor and the data output end of the second pressure sensor are respectively connected to the data receiving end of the data acquisition device 7. The environmental pressure data inside the accommodating chamber 103 (i.e., the underwater environment) is collected in real time through the first pressure sensor, and the working pressure data inside the underwater valve 17 is collected in real time through the second pressure sensor, and transmitted to the data acquisition device 7 for storage and recording.

[0057] In an optional embodiment of the present invention, Figures 1 to 3 As shown, the test cabin 1 includes a cabin body 101 and a hatch cover 102. The cabin body 101 is a cylindrical structure with an opening at the top and a sealing bottom. The hatch cover 102 is provided with a sealing cover at the top opening of the cabin body 101 to enclose a receiving cavity 103 between the bottom of the hatch cover 102 and the inner wall of the cabin body 101. A plurality of first bolts 108 are connected between the hatch cover 102 and the cabin body 101.

[0058] Furthermore, a first sealing gasket is provided at the connection position between the cabin body 101 and the cabin cover 102 , and good sealing is maintained between the cabin body 101 and the cabin cover 102 through the first sealing gasket.

[0059] Furthermore, nuts are tightened on the first bolts 108, and the first bolts 108 are evenly arranged along the circumference of the hatch cover 102 near the edge of the hatch cover 102, so as to ensure a stable connection between the hatch cover 102 and the cabin body 101. The first bolts 108 can be tightened by a bolt hydraulic tensioning tool, which is easy to operate.

[0060] Specifically, Figures 1 to 3 As shown, a first through hole 104 and a second through hole 105 are provided on the upper side wall of the cabin 101, and the first through hole 104 and the second through hole 105 are respectively located on two opposite side walls of the cabin 101, a first sealing flange 106 is provided at the first through hole 104, and a plurality of second bolts 109 are connected between the first sealing flange 106 and the cabin 101, and the first pressure pipeline 3 and the third pressure pipeline 4 both pass through the first sealing flange 106 and extend into the accommodating chamber 103 through the first through hole 104; a second sealing flange 107 is provided at the second through hole 105, and a plurality of second bolts 109 are connected between the second sealing flange 107 and the cabin 101, and the second pressure pipeline 6 and the fourth pressure pipeline 5 both pass through the second sealing flange 107 and extend into the accommodating chamber 103 through the second through hole 105. Each second bolt 109 can be tightened by a bolt hydraulic tensioning tool, and the operation is simple.

[0061] Furthermore, second sealing gaskets are respectively provided at the connection positions between the cabin body 101 and the first sealing flange 106 and between the cabin body 101 and the second sealing flange 107, so that good sealing is maintained between the first sealing flange 106 and the second sealing flange 107 and the cabin body 101 respectively.

[0062] In an optional embodiment of the present invention, Figure 1 , Figure 2 As shown, the test chamber 1 is provided with an exhaust pipe 13, which is located at the top of the test chamber 1, one end of the exhaust pipe 13 is connected with the top of the accommodating chamber 103, and the other end of the exhaust pipe 13 extends through the top wall of the test chamber 1 to the top of the test chamber 1, and an exhaust valve 14 is provided on the exhaust pipe 13. Before the test, the accommodating chamber 103 is pressurized through the first pressure pipe 3 until water is discharged from the exhaust pipe 13, at which time the exhaust pipe 13 will exhaust all the air in the accommodating chamber 103, and the authenticity of the simulated underwater environment is ensured by the setting of the exhaust pipe 13, thereby improving the accuracy of the acquired test data.

[0063] In an optional embodiment of the present invention, Figure 1 , Figure 2 , Figure 4 As shown, the driving device 18 is a driving cylinder, the interior of which is divided into a rod chamber and a rodless chamber by a piston, a piston rod is arranged in the rod chamber, one end of the piston rod is connected to the piston, and the other end of the piston rod extends to the outside of the driving cylinder and is connected to the internal valve body of the underwater valve 17. The movement of the piston rod on the driving cylinder drives the movement of the valve body, thereby controlling the opening and closing of the underwater valve 17.

[0064] Further, such as Figure 1As shown, the driving cylinder may be but is not limited to a hydraulic cylinder, on which a first hydraulic pipeline 8 and a second hydraulic pipeline 9 are provided, one end of the first hydraulic pipeline 8 is connected to the rodless cavity, the other end of the first hydraulic pipeline 8 extends to the outside of the accommodating cavity 103 and is connected to the hydraulic adjustment device 10, one end of the second hydraulic pipeline 9 is connected to the rod cavity, the other end of the second hydraulic pipeline 9 extends to the outside of the accommodating cavity 103. Oil can be pumped into or out of the rodless chamber through the hydraulic adjustment device 10 and the first hydraulic pipeline 8. When oil is pumped into the rodless chamber, the piston and the piston rod move downward, and the gas in the rod chamber is discharged to the outside through the second hydraulic pipeline 9. The volume of the rodless chamber increases and the volume of the rod chamber decreases. The piston rod pushes the valve body downward to close until the underwater valve 17 is in a fully closed state; when the oil in the rodless chamber is extracted, the piston and the piston rod move upward, and external gas enters the rod chamber through the second hydraulic pipeline 9. The volume of the rodless chamber decreases and the volume of the rod chamber increases. The piston rod pulls the valve body upward to open until the underwater valve 17 is in a fully open state, thereby controlling the underwater valve 17 to complete a switching operation.

[0065] Furthermore, the hydraulic adjustment device 10 may be, but is not limited to, a bidirectional pump.

[0066] In an optional embodiment of the present invention, Figures 1 to 3 As shown, a support frame 2 is disposed inside the accommodating chamber 103 , and the underwater valve 17 is placed on the top of the support frame 2 to ensure that the underwater valve 17 is stably disposed in the accommodating chamber 103 .

[0067] Further, such as Figures 1 to 3 As shown, the support frame 2 is a plate-like structure arranged in the horizontal direction, the edge of the support frame 2 is connected to the inner wall of the accommodating cavity 103, and a plurality of reinforcing ribs 201 are arranged below the support frame 2. Each reinforcing rib 201 is a sheet-like structure arranged in the vertical direction, and two adjacent edges of each reinforcing rib 201 are respectively connected to the bottom of the support frame 2 and the inner wall of the accommodating cavity 103. The arrangement of each reinforcing rib 201 improves the stability of the connection between the support frame 2 and the cabin 101.

[0068] In an optional embodiment of the present invention, Figure 1 , Figure 2 As shown, the test device for simulating the working state of the valve in the underwater environment also includes a drain pipe 15, which is located at the bottom of the test chamber 1, one end of the drain pipe 15 is connected to the bottom of the accommodating chamber 103, and the other end of the drain pipe 15 passes through the bottom wall of the test chamber 1 and extends to the bottom of the test chamber 1, and a drain valve 16 is provided on the drain pipe 15. After the test is completed, the water in the accommodating chamber 103 can be discharged to the outside through the drain pipe 15, so as to facilitate the maintenance of various equipment in the accommodating chamber 103 and the replacement of different underwater valves 17.

[0069] In an optional embodiment of the present invention, Figure 1 , Figure 2 As shown, the test device for simulating the working state of the valve in the underwater environment also includes a pressure regulating pipeline 12, which is arranged on the side wall of the test cabin 1, one end of the pressure regulating pipeline 12 is connected with the accommodating chamber 103, and the other end of the pressure regulating pipeline 12 passes through the side wall of the test cabin 1 and extends to the outside of the test cabin 1, and a safety valve 11 is arranged on the pressure regulating pipeline 12. By adjusting the pressure in the accommodating chamber 103 through the pressure regulating pipeline 12 and the safety valve 11, it can be ensured that the pressure in the accommodating chamber 103 does not exceed the maximum value of the working pressure that the test cabin 1 can withstand, and it can also ensure that the pressure in the accommodating chamber 103 is within the water depth pressure range that the underwater valve 17 under test can withstand, thereby preventing the underwater valve 17 from being damaged.

[0070] Furthermore, in the present invention, the first pressure pipeline 3, the second pressure pipeline 6, the third pressure pipeline 4, the fourth pressure pipeline 5, the first hydraulic pipeline 8, the second hydraulic pipeline 9, the pressure regulating pipeline 12, the exhaust pipeline 13 and the drain pipeline 15 can all be made of but not limited to stainless steel seamless steel pipes to ensure that each pipeline has good pressure-bearing capacity and can withstand the pressure in the accommodating chamber 103.

[0071] The implementation process of the test device for simulating the working state of a valve in an underwater environment of the present invention comprises the following steps:

[0072] Step S1: Open the hatch 102, install the underwater valve 17 to be tested into the accommodating cavity 103 from the top opening of the cabin 101, and fix it on the top of the support frame 2;

[0073] Step S2: connecting the first pressure pipeline 3, the second pressure pipeline 6, the third pressure pipeline 4, the fourth pressure pipeline 5, the first hydraulic pipeline 8, the second hydraulic pipeline 9, the pressure regulating pipeline 12, the exhaust pipeline 13 and the drain pipeline 15, and installing the first sealing flange 106 and the second sealing flange 107;

[0074] Step S3: Fill the containing cavity 103 with test water from the top opening of the cabin 101, and seal the hatch cover 102 on the top of the cabin 101;

[0075] Step S4: starting the pressure supply device to pressurize the accommodating chamber 103 through the first pressure pipeline 3 until clean water is discharged from the exhaust pipeline 13 (i.e., the air in the accommodating chamber 103 has been completely exhausted);

[0076] Step S5: close the exhaust valve 14 and continue to pressurize the accommodating chamber 103 to a preset test pressure;

[0077] Step S6: presetting test parameters (including: the time required for the piston rod to extend out of the rod chamber, the time required for the piston rod to retract into the rod chamber, the time for the piston rod to stop moving, and the number of reciprocating movements of the piston rod, etc.), so as to control the opening and closing actions of the underwater valve 17 according to the experimental requirements through the hydraulic adjustment device 10 and the first hydraulic pipeline 8;

[0078] Step S7: The test starts, and the data acquisition device 7 is started. The data acquisition device 7 collects the working pressure data of the underwater valve 17, the pressure data of the underwater environment, the time required for the underwater valve 17 to change from an open state to a closed state or from a closed state to an open state, and the number of times the underwater valve 17 changes from an open state to a closed state or from a closed state to an open state per unit time. In this way, it can be known whether the underwater valve 17 can operate as required in the pressure environment, and the test is completed.

[0079] In addition, the pressure in the accommodating chamber 103 can be adjusted so that the underwater valve 17 is in different pressure environments, and the action data of the underwater valve 17 and the curve of pressure change can be recorded respectively.

[0080] The characteristics and advantages of the test device for simulating the working state of a valve in an underwater environment of the present invention are:

[0081] 1. The test device for simulating the working state of the valve in the underwater environment has a simple structure, is easy to operate, and has high safety. The first pressure pipeline 3 and the second pressure pipeline 6 can be used to adjust the pressure increase and pressure relief of the accommodating chamber 103 according to the needs of the test pressure, thereby being able to control the simulation of water environments with different pressures in the accommodating chamber 103 to meet different test requirements, effectively ensure that the test environment meets the requirements of the underwater environment, and improve the accuracy of the experiment.

[0082] 2. The test device for simulating the working state of the valve in the underwater environment can collect the pressure value of the underwater environment in which the underwater valve 17 is located and the working pressure value of the underwater valve 17 in real time, and store and record the collected pressure data, so as to obtain the pressure data of the underwater valve 17 and the number of switching times of the underwater valve 17 per unit time, so as to understand the working state and performance of the underwater valve 17 in underwater environments with different pressures. The data obtained in this application is highly accurate and can provide effective data support and reference for the development and trial use of the underwater valve 17.

[0083] 3. The test device for simulating the working state of the valve in the underwater environment simulates the underwater environment in a sealed space (i.e., the accommodating chamber 103). The cabin 101 and the hatch 102, the cabin 101 and the first sealing flange 106, and the cabin 101 and the second sealing flange 107 are all sealed connections, which greatly improves the reliability of the seal, thereby improving the authenticity of the simulated underwater environment, and improving the accuracy and efficiency of the test.

[0084] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A test device for simulating the working state of a valve in an underwater environment, characterized in that: The test device for simulating the working state of a valve in an underwater environment comprises a test chamber (1), wherein a receiving chamber (103) simulating an underwater environment is formed inside the test chamber (1), and the receiving chamber (103) is filled with water. The test chamber (1) is provided with a first pressure pipeline (3) and a second pressure pipeline (6) for cooperating to adjust the test pressure in the receiving chamber (103), one end of the first pressure pipeline (3) and one end of the second pressure pipeline (6) are both connected to the inside of the receiving chamber (103), the other end of the first pressure pipeline (3) and the other end of the second pressure pipeline (6) are both extended to the outside of the receiving chamber (103), and the first pressure pipeline (3) is connected to a first pressure supply device (20); The underwater valve (17) to be detected is placed in the accommodating chamber (103), and a driving device (18) for controlling the switching action of the underwater valve (17) is also arranged in the accommodating chamber (103). The inlet end (1701) and the outlet end (1702) of the underwater valve (17) are respectively connected to one end of the third pressure pipeline (4) and one end of the fourth pressure pipeline (5). The other end of the third pressure pipeline (4) extends to the outside of the accommodating chamber (103), and the third pressure pipeline (4) is connected to the second pressure supply device (19); The other end of the fourth pressure pipeline (5) is located inside the accommodating chamber (103), and the pressure relief of the underwater valve (17) is used to pressurize the interior of the accommodating chamber (103); The driving device (18) is a driving cylinder, the interior of the driving cylinder is divided into a rod chamber and a rodless chamber by a piston, a piston rod is arranged in the rod chamber, one end of the piston rod is connected to the piston, and the other end of the piston rod extends to the outside of the driving cylinder and is connected to the internal valve body of the underwater valve (17); The driving cylinder is a hydraulic cylinder, and a first hydraulic pipeline (8) and a second hydraulic pipeline (9) are provided on the hydraulic cylinder. One end of the first hydraulic pipeline (8) is connected to the rodless cavity, and the other end of the first hydraulic pipeline (8) extends to the outside of the accommodating cavity (103) and is connected to the hydraulic adjustment device (10). One end of the second hydraulic pipeline (9) is connected to the rod cavity, and the other end of the second hydraulic pipeline (9) extends to the outside of the accommodating cavity (103).

2. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 1, characterized in that: The test device for simulating the working state of a valve in an underwater environment further comprises a data acquisition device (7) for acquiring working state data of the underwater valve (17); the data acquisition device (7) is arranged outside the accommodating chamber (103); a data receiving end of the data acquisition device (7) is connected to a data output end of the driving device (18), a data output end of the first pressure supply device (20), and a data output end of the second pressure supply device (19).

3. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 1, characterized in that: The test cabin (1) comprises a cabin body (101) and a hatch cover (102); the cabin body (101) is a cylindrical structure with an opening at the top and a sealing at the bottom; the hatch cover (102) is arranged at the top opening of the cabin body (101) to enclose the accommodating cavity (103) between the bottom of the hatch cover (102) and the inner wall of the cabin body (101); a plurality of first bolts (108) are connected between the hatch cover (102) and the cabin body (101).

4. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 3, characterized in that: A first sealing gasket is sandwiched between the cabin body (101) and the cabin cover (102).

5. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 3, characterized in that: A first through hole (104) and a second through hole (105) are provided on the side wall of the cabin body (101); a first sealing flange (106) and a second sealing flange (107) are provided at the first through hole (104) and the second through hole (105), respectively; the first pressure pipeline (3) and the third pressure pipeline (4) both pass through the first sealing flange (106) and extend into the accommodating cavity (103) through the first through hole (104); the second pressure pipeline (6) passes through the second sealing flange (107) and extends into the accommodating cavity (103) through the second through hole (105).

6. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 5, characterized in that: A second sealing gasket is respectively sandwiched between the cabin body (101) and the first sealing flange (106) and between the cabin body (101) and the second sealing flange (107).

7. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 5, characterized in that: A plurality of second bolts (109) are respectively connected between the first sealing flange (106) and the cabin body (101), and between the second sealing flange (107) and the cabin body (101).

8. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 1, characterized in that: The test chamber (1) is provided with an exhaust pipe (13) for exhausting the air in the accommodating chamber (103); the exhaust pipe (13) is located at the top of the test chamber (1); one end of the exhaust pipe (13) is connected to the top of the accommodating chamber (103); the other end of the exhaust pipe (13) passes through the top wall of the test chamber (1) and extends to the top of the test chamber (1); and an exhaust valve (14) is provided on the exhaust pipe (13).

9. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 1, characterized in that: A support frame (2) is provided inside the accommodating chamber (103), and the underwater valve (17) is placed on the top of the support frame (2).

10. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 9, characterized in that: The support frame (2) is a plate-like structure arranged in a horizontal direction, the edge of the support frame (2) is connected to the inner wall of the accommodating cavity (103), a plurality of reinforcing ribs (201) are arranged below the support frame (2), and each of the reinforcing ribs (201) is respectively connected to the bottom of the support frame (2) and the inner wall of the accommodating cavity (103).

11. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 1, characterized in that: The test device for simulating the working state of a valve in an underwater environment further comprises a drain pipe (15), wherein the drain pipe (15) is located at the bottom of the test chamber (1), one end of the drain pipe (15) is connected to the bottom of the accommodating chamber (103), and the other end of the drain pipe (15) passes through the bottom wall of the test chamber (1) and extends to the bottom of the test chamber (1), and a drain valve (16) is provided on the drain pipe (15).

12. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 1, characterized in that: The test device for simulating the working state of a valve in an underwater environment further comprises a pressure regulating pipeline (12), wherein the pressure regulating pipeline (12) is arranged on the side wall of the test chamber (1), one end of the pressure regulating pipeline (12) is connected to the accommodating chamber (103), and the other end of the pressure regulating pipeline (12) passes through the side wall of the test chamber (1) and extends to the outside of the test chamber (1), and a safety valve (11) is arranged on the pressure regulating pipeline (12).

13. The test device for simulating the working state of a valve in an underwater environment as claimed in claim 1, characterized in that: The first pressure supply device (20) and the second pressure supply device (19) are both arranged outside the accommodating chamber (103).

Images