CN113237630B - Test environment simulation device and test environment simulation method - Google Patents
Test environment simulation device and test environment simulation method Download PDFInfo
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- CN113237630B CN113237630B CN202110484656.5A CN202110484656A CN113237630B CN 113237630 B CN113237630 B CN 113237630B CN 202110484656 A CN202110484656 A CN 202110484656A CN 113237630 B CN113237630 B CN 113237630B
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- 238000012360 testing method Methods 0.000 title claims abstract description 200
- 238000004088 simulation Methods 0.000 title claims abstract description 92
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The application discloses a test environment simulation device and a test environment simulation method. Wherein the device includes: a sealed container and a simulation assembly; the sealed container is a cavity with an interlayer arranged on the cavity wall; the inner cavity of the sealed container is filled with first liquid, and the first liquid is used for simulating the test environment; the inner cavity of the sealed container is communicated with a pressure pump, and the pressure pump acts on the regulation and control of the pressure of the first liquid; the sealed container is provided with a controller, and the controller is used for regulating and controlling attribute parameters of the first liquid filled in the sealed container, wherein the attribute parameters comprise pressure parameters of the first liquid; the simulation assembly is immersed in the first liquid in the sealed container to complete the simulation test in the first liquid. The application solves the technical problem that the simulation test result and the actual application have large difference caused by the failure of the simulation test environment.
Description
Technical Field
The application relates to the field of simulation tests, in particular to a test environment simulation device and a test environment simulation method.
Background
In the case of underwater exploration, environmental detection or underwater investigation, for example in the case of marine exploration, drilling and monitoring, it is generally necessary to use underwater robots or underwater towing systems. When the underwater robot and the underwater towing system operate underwater, the deep-sea photoelectric composite cable is generally required to be used as a connecting medium between the underwater robot and the underwater towing system and the mother ship so as to realize connection, communication and control between the underwater robot and the underwater towing system and the mother ship.
Taking an optical-electrical composite cable for an ROV as an example, because of the use environment and the special use requirements, after the optical-electrical composite cable armor layer is mechanically fixed with a bearing head, an electric unit and a control unit in a cable core are separated, and the separated electric unit is connected with electric equipment such as a propeller, a manipulator, a sensor, a camera and the like of the ROV in a terminal box filled with hydraulic oil or transformer oil, and the terminal box and the hydraulic oil or transformer oil in the terminal box play a role in keeping internal and external pressure balance. Thus, there is a need for an optical-electrical composite cable core that has the ability to prevent excessive penetration of hydraulic or transformer oil into the cable core at ROV operating depths. Along with the increase of ROV working water depth, sea water pressure can also be continuously increased, for example, when working under 6000 m water depth environment, the photoelectric composite cable needs to bear water pressure of about 60MPa, if the photoelectric composite cable can not bear water pressure and is damaged at any point on the service length, sea water can enter the cable core and electric equipment along the damaged point instantly, so that the photoelectric components in the cable core are invalid and the electric equipment is short-circuited, and serious influence and consequences are caused.
In the related art, no simulation device and no simulation scheme aiming at an underwater working environment are adopted, a longitudinal watertight test is generally utilized to carry out sealing or hydrostatic pressure resistant independent test detection on a deep sea photoelectric composite cable, the hydraulic pressure in the watertight test can not reach the pressure of the deep sea environment far, the situation that the end part of the composite cable slides out of a test device to cause test failure easily occurs in the sealing test, and meanwhile, the watertight test can not simulate the situation that the whole working system carries out pressure compensation in the deep sea environment. Under the condition that the watertight test cannot actually simulate the real underwater environment, the pressure test of the composite cable cannot meet the requirements, and then the composite cable and the working system are put into actual work with great risks.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the application provides a test environment simulation device and a test environment simulation method, which are used for at least solving the technical problem that the simulation test result and the actual application are large in difference caused by the fact that the test environment cannot be simulated.
According to an aspect of the embodiment of the present application, there is also provided an experimental environment simulation apparatus, including: comprising a sealed container and a simulation assembly; the sealed container is a cavity with an interlayer arranged on the cavity wall; the inner cavity of the sealed container is filled with a first liquid, and the first liquid is used for simulating a test environment; the inner cavity of the sealed container is communicated with a pressure pump, and the pressure pump acts on the regulation and control of the pressure of the first liquid; a temperature control tube is arranged in the interlayer of the sealed container, and the temperature control tube is used for regulating and controlling the temperature of the first liquid; the sealed container is provided with a controller, and the controller is used for regulating and controlling the attribute parameters of the first liquid filled in the sealed container, wherein the attribute parameters comprise the pressure parameter of the first liquid and the temperature parameter of the first liquid; the simulation module is immersed in the first liquid in the sealed container to perform a simulation test in the first liquid.
According to another aspect of the embodiment of the present application, there is provided a test environment simulation method, including: and adjusting the attribute parameters of the first liquid in the sealed container to be in a range matched with a target test environment, wherein the target test environment is a simulation environment consistent with the real environment where the target task to be executed is located in terms of environmental parameters.
In the embodiment of the application, the first liquid is filled in the sealed container, the attribute parameters of the first liquid are regulated, and the simulation module is completely immersed in the first liquid to perform the simulation test by using the mode of simulating the test environment by the first liquid, so that the aim of performing the simulation test to obtain a simulation test result under the condition that the whole simulation module is in the simulation environment is fulfilled, the technical effects of high matching degree of the simulation test environment and the real environment and accurate simulation test result are realized, and the technical problem that the simulation test result and the actual application are greatly different due to the fact that the simulation test environment cannot be simulated is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of an alternative experimental environment simulation apparatus according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an alternative analog assembly according to an embodiment of the present application;
FIG. 3 is a schematic illustration of an alternative seal configuration in accordance with an embodiment of the present application;
FIG. 4 is a flow chart of an alternative test environment simulation method according to an embodiment of the present application;
FIG. 5 is a flow chart of an alternative test environment simulation method according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an aspect of an embodiment of the present application, there is provided a test environment simulation apparatus, alternatively, the above test environment simulation apparatus may be applied, but not limited to, as shown in fig. 1. The test environment simulation device includes a sealed vessel 110 and a simulation assembly 120. The sealed container 110 is a hollow sealed cavity structure. The hollow interior of the sealed container 110 is filled with a first liquid, which is a liquid used to simulate the test environment. The type and composition of the first liquid is not limited herein and may be a liquid determined according to the test environment to be simulated. In the case of a simulated deep sea environment, the first liquid may be seawater and may be compositionally adjusted so that the composition is more closely related to the seawater of the deep sea environment.
The simulation module 120 is completely immersed in the first liquid in the sealed vessel 110 to achieve that the simulation module 120 is entirely placed in the test environment of the first liquid configuration to complete the simulation test. Thereby, the test environment of the simulation test and the real test environment achieve the fitting with the same or higher similarity, so as to improve the accuracy of the simulation test result of the simulation assembly 120.
The sealed container 110 is provided with a controller 112, and the controller 112 is used for regulating and controlling the attribute parameters of the first liquid filled in the sealed container 110. The attribute parameters of the first liquid may include, but are not limited to, a pressure parameter of the first liquid, a temperature parameter of the first liquid, a flow rate parameter of the first liquid, and a fill amount of the first liquid. The property parameter of the first liquid may be a parameter of the first liquid itself, or may be represented by a property parameter of the inner cavity environment of the sealed container 110. To ensure that the analog component 120 is completely immersed in the first liquid, the interior cavity of the sealed container 110 is typically filled with the first liquid.
The inner cavity of the sealed container 110 is communicated with the pressure pipe 101, the other end of the pressure pipe 101 is connected with the pressure pump 102, and the pressure pump 102 is used for regulating and controlling the pressure of the first liquid. The pressure tube 101 is a fixed volume tube which is also filled with a first liquid. The filling volume of the first liquid in the pressure tube 101 is not limited. The pressure pump 102 is provided with a control valve (not shown) for controlling the pressure increase or the pressure decrease in the sealed container 110. Alternatively, a pressure gauge for monitoring the pressure in the tube may be provided on the pressure tube 101, and the pressure parameter of the first liquid may be represented by display data of the pressure gauge. Specifically, the total internal volume of the sealed vessel 110 and the pressure tube 101 is fixed, and the total amount of the first liquid contained is fixed. The pressure pump 102 compresses the gas into the pressure pipe 101 by adjusting the control valve, thereby compressing the occupied volume of the first liquid with the gas to increase the pressure of the first liquid, and controls the degree of pressurization of the first liquid by controlling the volume of the compressed gas. Similarly, the gas in the pressure pipe 101 is discharged by adjusting the control valve, so that the occupied volume of the first liquid is increased to reduce the pressure of the first liquid, and the degree of pressure reduction of the first liquid is controlled by controlling the volume of the discharged gas. The gas pressurized by the pressure pump 102 is a gas that does not chemically react with the first liquid.
The sealed container 110 is provided with an interlayer 111 in the cavity wall. A temperature control tube (not shown) is disposed in the interlayer 111, and is used for controlling the temperature of the first liquid. Optionally, the temperature control tube includes a temperature raising tube and a temperature lowering tube, wherein the temperature raising tube is used for raising the temperature of the inner cavity of the sealed container to raise the temperature of the first liquid, and the temperature lowering tube is used for lowering the temperature of the inner cavity of the sealed container to lower the temperature of the first liquid. The heating pipe can be, but not limited to, an electric heating pipe and a water heating pipe, and the cooling pipe can be, but not limited to, a nitrogen pipe and a liquid cooling pipe. Optionally, a temperature sensor is provided in the sealed container 110 to monitor the liquid temperature of the first liquid.
The stirring member 103 is provided in the inner cavity of the sealed container 110, and the stirring member 103 acts to regulate the flow rate of the first liquid. Alternatively, the stirring member 103 may be a pressure pump, and the flow of the first liquid is formed by providing a plurality of pressure pumps at different heights, thereby controlling the flow rate of the first liquid by controlling the operation of the pressure pumps. The stirring part 103 can also select a stirring fan blade structure, and the stirring fan blade is driven to rotate by the motor, so that the flow rate of the first liquid is controlled, and a plurality of stirring parts 103 can be arranged at different positions of the inner cavity, so that the control accuracy of the flow rate of the first liquid is ensured, and the flow rate of the first liquid in the inner cavity is ensured to be consistent.
The above-described analog components may be applied, but are not limited to, as shown in fig. 2. The analog assembly includes a pressure compensation assembly and a test cable 12. One end of the test cable 12 is connected to a pressure compensating assembly and the other end is sealed with an end seal by a second vulcanized joint 14. The pressure compensating assembly serves to isolate the first fluid from the ends of the test cable 12 while maintaining the ends of the test cable 12 in a dynamic equilibrium state of pressure.
The test cable 12 is a cable to be tested, and may be a cable that is required to operate in a real environment corresponding to the simulated test environment, for example, when the simulated test environment is a deep sea environment, the test cable may be a photoelectric composite cable that operates in a deep sea environment.
The pressure compensation assembly comprises a pressure compensator 8, a terminal box 11 and a flow conduit 10 communicating the pressure compensator 8 and the terminal box 11. The end of the test cable 12 connected to the pressure compensation assembly is sealed and fixed in the terminal box 11. The flow guide tube 10 and the terminal box 11 are filled with a second liquid, and the end of the test cable 12 fixed in the terminal box 11 is immersed in the second liquid. The second liquid is a liquid that can maintain the performance of the test cable 12, and has no influence on the performance of the test cable 12 itself, and the composition of the second liquid is not limited otherwise.
The pressure compensator 8 may be a hollow cavity structure comprising a liquid outlet 7 communicating with a flow conduit 10, a liquid inlet 1 for the first liquid to enter, and a piston 5 separating the inner cavity of the pressure compensator 8. The piston 5 divides the inner chamber of the pressure compensator 8 into a first liquid chamber 2 and a second liquid chamber 6. The first liquid filled in the inner cavity of the sealed container can enter the first liquid cavity 2 through the liquid inlet 1, and the second liquid in the guide pipe 11 can enter the second liquid cavity 6 through the liquid outlet 7. One side of the piston 5 is fixedly connected with a piston shaft 4, the piston shaft 4 is slidably arranged on the pressure compensator 8, the piston 5 is linked with the piston shaft 4, and the piston shaft slides in the inner cavity of the pressure compensator 8 according to the pressure difference between the first liquid and the second liquid. The pressure compensator 8 keeps the pressure between the first liquid and the second liquid in dynamic balance through the sliding piston 5, so that the end part of the test cable 12 in the terminal box 11 and the rest part of the test cable 12 in the first liquid are kept consistent in pressure, deformation caused by unbalanced pressure of the test cable 12 is avoided, the uniqueness of the deformation factors of the test cable in the simulation test is controlled, and the accuracy of the simulation test is ensured.
The piston shaft 4 is sleeved with a spring 3, and two sides of the spring 3 are fixedly connected with the inner wall of the pressure compensator 8 and the piston 5 respectively. The spring 3 is always in a compressed state. The piston 5 at pressure equalization can be expressed as:
P second liquid ·A＝P First liquid ·A+F k (1)
Wherein A is the surface area of the piston 5, F k Is the force of the spring 3.
As can be seen from the above formula (1), at the time of pressure balance, the pressure difference Δp between the first liquid and the second liquid can be expressed as:
ΔP＝P second liquid -P First liquid ＝F k (2)
According to the formula (2), under the condition that the piston 5 keeps pressure balance, the pressure of the second liquid is slightly larger than that of the first liquid due to the acting force of the spring 3, so that the sealing performance of the liquid environment where the second liquid is located is better, the end part of the piston 5, where the first liquid and the test cable 12 are located in the terminal box 11, is ensured, and the first liquid is prevented from entering the test cable 12 from the end part of the test cable 12, and the performance of the test cable 12 is influenced. It should be noted that the outer surface of the test cable itself is provided with structures or materials for maintaining the performance stability of the test cable, however, the end surfaces may be exposed to the internal structure, and thus it is necessary to avoid the influence of the first liquid on the test cable during the simulation test by immersing in the protective liquid.
The test cable 12 is sealed and fixed in the terminal box 11 at the end of the test cable 12 by a sealing structure 13. The sealing structure 13 may be, but is not limited to, as shown in fig. 3. The sealing structure 13 comprises a workpiece 15 for fixing the test cable 12 and a first vulcanized joint 17, wherein the workpiece 15 and the test cable 12 are fixedly connected in the first vulcanized joint 17, and are fixed on the terminal box 11 through the first vulcanized joint 17, so that the terminal box 11 and the test cable 12 are fixed, the tightness of the terminal box 11 is ensured, and the first liquid is prevented from entering the terminal box 11. The workpiece 15 may be formed of two parts, a head and a body. The head and the body can be connected through threads, and epoxy glue 16 is coated on the contact part of the head and the body with the test cable 12 so as to ensure the fixation firmness and the tightness of the workpiece 15 and the test cable 12. The first vulcanized joint 17 is triangular, and the tip is positioned in the terminal box 11, so that the tightness of the terminal box 11 is further ensured.
As shown in fig. 2, the casing 9 of the pressure compensator 8 is made of transparent material, the casing 9 is provided with a scale 18 capable of displaying the liquid level, the initial liquid level value of the second liquid in the pressure compensator 8 can be read through the scale 18 on the casing 9 at the beginning of the test process, the final liquid level value of the second liquid in the pressure compensator 8 can be read through the scale 18 on the casing 9 at the end of the test process, and the change value of the liquid level of the second liquid can be calculated based on the initial liquid level value and the final liquid level value.
Because the first liquid and the second liquid are isolated by the piston, the liquid level change value of the first liquid is consistent with the liquid level change value of the second liquid and the piston height change value. The value of the change in the liquid level is smaller than the preset threshold value for a period of time, and the pressure of the first liquid and the second liquid in the pressure compensator 8 is determined to reach an equilibrium state, so that the test cable 12 is determined to be in a pressure equilibrium state.
With the test cable 12 in a pressure equilibrium state, the test cable 12 is kept immersed in the sealed container 110 for simulation test. During the test, the second liquid enters the test cable 12 through the end of the test cable 12 at the end of the terminal box 11, and the dosage of the second liquid entering the test cable 12 can be obtained by calculating the liquid level height change value of the second liquid in the pressure compensator 8, or by dissecting the test cable 12 after the test is finished. To protect the test cable 12 and to facilitate comparison with the real environment conditions, a level change value of the second liquid is generally used as a simulation result. Since the level change value of the second liquid in the pressure compensator 8 is consistent with the level change value of the first liquid, the level change value of the first liquid may be used as a simulation test result, but in actual sea test, the level change value of the second liquid is usually observed as a judgment standard, and in order to further ensure the accuracy of the test result, the level change of the second liquid is used as a simulation test result.
The reference value of the simulation test result obtained by using the simulation test environment simulation device for simulation test is illustrated by comparing the following specific test data with the data result in the real environment:
1) In the simulation test, the liquid pressure of the first liquid is 5.5MPa, and the liquid level height change value of the second liquid in the pressure compensator is 6.5mm; the sea water depth 502m in the real sea test is converted into the water pressure of 5MPa, and the change value of the liquid level height of the sea water in the pressure compensator is 7.3mm. In the case of 10% error in the fluid pressure, the error between the test result and the actual sea test result is 11.0%.
2) In the simulation test, the liquid pressure of the first liquid is 21.5MPa, and the liquid level height variation value of the second liquid in the pressure compensator is 23.8mm; the sea water depth 2006m in the real sea test is converted into water pressure of 20MPa, and the change value of the liquid level height of the sea water in the pressure compensator is 26.8mm. In the case of a 7.5% error in the fluid pressure, the error between the test result and the actual sea test result is 11.2%.
3) The liquid pressure of the first liquid in the simulation test is 32.5MPa, and the liquid level height change value of the second liquid in the pressure compensator is 34.7mm; the sea water depth 3211m in the real sea test is converted into 32MPa of water pressure, and the change value of the liquid level height of the sea water in the pressure compensator is 39.5mm. In the case of a 1.6% error in the fluid pressure, the error between the test result and the actual sea test result is 12.2%.
4) In the simulation test, the liquid pressure of the first liquid is 45.5MPa, and the liquid level height change value of the second liquid in the pressure compensator is 41.6mm; the sea water depth in the real sea test is 4500m, the converted water pressure is 45MPa, and the liquid level height change value of the sea water in the pressure compensator is 48.5mm. In the case of a 1.1% error in the fluid pressure, the error between the test result and the actual sea test result is 14.2%.
The results of comparing the four groups of test data with the real sea test data can be obtained, the error between the test results and the real sea test data is smaller, and the test results obtained by the test environment simulation device have reference values.
In the embodiment of the application, the first liquid is filled in the sealed container, and the attribute parameters of the first liquid are regulated so that the first liquid reaches a state consistent with the real environment, the first liquid is used for constructing a simulation test environment of the real environment, and the simulation assembly is completely immersed in the first liquid, so that the whole simulation test of the simulation assembly is realized. The simulation device comprises a pressure compensation component, and the end part of the test cable is isolated from the first liquid which possibly causes unstable attribute of the test cable by utilizing the second liquid in the pressure compensator, so that the influence of the first liquid on the test result is avoided, the dynamic balance of the whole bearing pressure of the test cable is ensured, deformation factors caused by unbalanced pressure of the test cable are avoided, the accuracy of the test result is further improved, and the consistency of the simulation test result and the real work is improved.
According to an aspect of the embodiment of the present application, there is provided a test environment simulation method implemented using a test environment simulation apparatus, as an alternative implementation, as shown in fig. 4, the test environment simulation method including:
s402, adjusting attribute parameters of the first liquid in the sealed container to be in a range matched with a target test environment, wherein the target test environment is a simulation environment consistent with the real environment where a target task to be executed is located in environmental parameters;
s404, performing performance test on the test cable under the condition that the test cable is immersed in the first liquid and the time length of the test cable in a pressure balance state reaches a target time length;
s406, acquiring a liquid level height change value of the first liquid in the pressure compensator.
Alternatively, the target task may be a task that the test cable can perform in a normal state, not limited to a transmission task. The transmission task is not limited to: liquid transmission, signal transmission, power transmission, etc. The test environment simulation is used to determine whether the test cable is operating properly in the target test environment.
Optionally, the target test environment is a simulated environment which is consistent in attribute with the real environment by adjusting attribute parameters of the first liquid, and the simulated environment is located in the sealed container and is an environment of the first liquid construction.
Alternatively, the test condition of the test cable may be, but is not limited to being, in a pressure equilibrium state, a working environment state. The working environment state is used for indicating the test environment in which the test cable is positioned, and indicates that the test cable is positioned in an environment capable of executing tasks. For example, the end part of the test cable and the first liquid form an isolated state through the pressure compensator, the two ends of the test cable are complete, and the internal structure of the test cable is not infected by the test environment. The pressure balance state refers to the state that the test cable is in pressure balance, namely the pressure at the two ends of the test cable is balanced.
As an alternative embodiment, as shown in fig. 5, the adjusting the attribute parameter of the first liquid in the sealed container to the range matching the target test environment includes:
s502, regulating and controlling the pressure parameter of the first liquid to be in a pressure range matched with the target test environment;
s504, regulating and controlling the temperature parameter of the first liquid to be in a temperature range matched with the target test environment;
s506, regulating and controlling the flow rate parameter of the first liquid to be in a flow rate range matched with the target test environment.
Optionally, the property parameter of the first liquid includes a pressure parameter, a temperature parameter, a flow rate parameter. The pressure parameter of the first liquid may be, but is not limited to being, regulated by a controller configured to seal the container. The attribute parameters of the first liquid and the target test environment are kept consistent within the allowable range by regulating and controlling the pressure parameter, the temperature parameter and the flow rate parameter of the first liquid, so that the simulation of the first liquid to the real environment is realized.
The sealed container, the test cable, and the like are the same as those described above, and will not be described in detail here.
In the embodiment of the application, the first liquid is filled in the sealed container, and the attribute parameters of the first liquid are regulated so that the first liquid reaches a state consistent with the real environment, the first liquid is used for constructing the target test environment of the real environment, and the test cable is immersed in the first liquid, so that the whole simulation test of the test cable is realized, and compared with the single simulation test, the whole test improves the consistency of the simulation test result and the working state of the real environment, thereby improving the accuracy of the simulation test result.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In several embodiments provided by the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (8)
1. The experimental environment simulation device is characterized by comprising a sealed container and a simulation assembly;
the sealed container is a cavity with an interlayer arranged on the cavity wall;
the inner cavity of the sealed container is filled with a first liquid, and the first liquid is used for simulating a test environment;
the inner cavity of the sealed container is communicated with a pressure pump, and the pressure pump acts on regulating and controlling the pressure of the first liquid;
the sealed container is provided with a controller, and the controller is used for regulating and controlling attribute parameters of the first liquid filled in the sealed container, wherein the attribute parameters comprise pressure parameters of the first liquid;
the simulation assembly is immersed in the first liquid of the sealed container to complete a simulation test in the first liquid, wherein the simulation assembly comprises a pressure compensation assembly and a test cable; the pressure compensation component is used for isolating the first liquid from the end parts of the test cable and keeping the two ends of the test cable in a dynamic balance state of pressure; the pressure compensation component comprises a pressure compensator, a terminal box and a flow guide pipe used for communicating the pressure compensator and the terminal box; the honeycomb duct and the terminal box are filled with second liquid; one end of the test cable is fixed in the terminal box in a sealing way and is immersed in the second liquid; the pressure compensator is of a hollow cavity structure and comprises a liquid inlet, a liquid outlet, a piston shaft, a first liquid cavity and a second liquid cavity; the piston is between the first liquid chamber and the second liquid chamber; one side of the piston is fixedly connected with the piston shaft; the terminal box is communicated with the liquid outlet through the flow guide pipe, and the second liquid in the terminal box enters the second liquid cavity through the liquid outlet; the inner cavity of the sealed container is communicated with the liquid inlet, and the first liquid in the inner cavity of the sealed container enters the first liquid cavity through the liquid inlet; the piston shaft slides according to a pressure difference between the first liquid and the second liquid.
2. The test environment simulation apparatus according to claim 1, wherein the pressure pump is provided with a control valve for performing pressure increasing control or pressure decreasing control on the inside of the sealed container.
3. The test environment simulation device according to claim 1, wherein a temperature control tube is arranged in the interlayer of the sealed container, the temperature control tube is used for regulating and controlling the temperature of the first liquid, and the attribute parameter comprises a temperature parameter of the first liquid.
4. A test environment simulation device according to claim 3, wherein the temperature control tube comprises a temperature raising tube for raising the temperature of the inner cavity of the sealed container to raise the temperature of the first liquid and a temperature lowering tube for lowering the temperature of the inner cavity of the sealed container to lower the temperature of the first liquid.
5. The test environment simulation device according to claim 1, wherein a stirring member is provided in the inner cavity of the sealed container, and the stirring member acts to regulate and control the flow rate of the first liquid.
6. The test environment simulation device according to claim 1, wherein the sealing structure for sealing and fixing the one end of the test cable in the terminal box comprises: the workpiece is fixedly connected with the test cable in the first vulcanized joint, and the contact part of the workpiece and the test cable is coated with epoxy glue.
7. A test environment simulation method is characterized in that:
adjusting attribute parameters of the first liquid in the sealed container to be in a range matched with a target test environment, wherein the target test environment is a simulation environment consistent in environmental parameters with the real environment where a target task to be executed is located;
performing performance test on the test cable under the condition that the test cable is immersed in the first liquid and the time length of the test cable in the pressure balance state reaches the target time length;
acquiring a liquid level height change value of the first liquid in a pressure compensator, wherein a pressure compensation component is arranged in the sealed container, and the pressure compensation component comprises the pressure compensator, a terminal box and a flow guide pipe used for communicating the pressure compensator and the terminal box; the honeycomb duct and the terminal box are filled with second liquid; one end of the test cable is fixed in the terminal box in a sealing way and is immersed in the second liquid; the pressure compensator is of a hollow cavity structure and comprises a liquid inlet, a liquid outlet, a piston shaft, a first liquid cavity and a second liquid cavity; the piston is between the first liquid chamber and the second liquid chamber; one side of the piston is fixedly connected with the piston shaft; the terminal box is communicated with the liquid outlet through the flow guide pipe, and the second liquid in the terminal box enters the second liquid cavity through the liquid outlet; the inner cavity of the sealed container is communicated with the liquid inlet, and the first liquid in the inner cavity of the sealed container enters the first liquid cavity through the liquid inlet; the piston shaft slides according to a pressure difference between the first liquid and the second liquid.
8. The method of claim 7, wherein adjusting the property parameters of the first liquid in the sealed container to a range that matches the target test environment comprises:
regulating and controlling the pressure parameter of the first liquid to be in a pressure range matched with the target test environment;
regulating and controlling the temperature parameter of the first liquid to be in a temperature range matched with the target test environment;
and regulating and controlling the flow rate parameter of the first liquid to be in a flow rate range matched with the target test environment.
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