CN211180673U - Deep water compression molding simulation test device - Google Patents
Deep water compression molding simulation test device Download PDFInfo
- Publication number
- CN211180673U CN211180673U CN202020131036.4U CN202020131036U CN211180673U CN 211180673 U CN211180673 U CN 211180673U CN 202020131036 U CN202020131036 U CN 202020131036U CN 211180673 U CN211180673 U CN 211180673U
- Authority
- CN
- China
- Prior art keywords
- pressure
- air bag
- water
- air
- water pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a deepwater compression molding simulation test device, which realizes the control of the water pressure in a water pressure cabin by controlling the air pressure in an air bag and can be applied to deepwater compression molding simulation test for the functional examination of underwater actions of underwater equipment; when the volume of the test piece in the hydraulic pressure cabin rapidly expands or reduces in a short time, the hydraulic pressure in the hydraulic pressure cabin can be kept basically stable, and the problem that the pressure is greatly increased or reduced due to the fact that water cannot be discharged or injected in time is solved; the test piece in the water pressure cabin can meet the action checking process of water drainage or water absorption under different pressure conditions, and the pressure in the water pressure cabin is ensured to change according to the set value.
Description
Technical Field
The utility model belongs to the technical field of deep water moulding-die simulation test based on gasbag control, concretely relates to deep water moulding-die simulation test device.
Background
The deep water pressure simulation test is to simulate the pressure of the test piece at different depths submerged in a natural water area by applying different pressures to the test piece in a water pressure cabin, and the current water pressure test device is mainly used for structural assessment tests of strength, tightness and the like of underwater equipment. With increasing importance to the safety defense work of the forepoling and the research activities of the marine science at home and abroad, the functional examination of the underwater actions of underwater weaponry such as underwater gliders, torpedoes, submergence vehicles and the like is an important link for realizing the productization of the underwater weaponry, for example, under the working conditions that the volume of a floating bag is rapidly expanded by being inflated in a few seconds and the like, because the volume and the pressure relief rate of the existing various laboratory hydraulic pressure test systems are limited, and the compressibility of water is very small, the working conditions can cause the pressure in a hydraulic pressure cabin of a laboratory to rapidly rise, the requirements of constant water pressure or pressure change according to the regulation in the action process of a test piece can not be met, and even the hydraulic pressure test system can be caused with danger. Therefore, it is important to establish a deepwater pressure simulation test device capable of carrying out functional assessment on underwater actions of underwater equipment.
In order to solve the problems, a deepwater compression simulation test device is developed by the inventor.
Disclosure of Invention
The present invention is directed to solve the above problems and to provide a deep water pressure simulation test apparatus.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a deep water pressure simulation test device comprises:
ballasting with water; water is injected into the hydraulic pressure cabin; the test piece is arranged in the water pressure cabin;
an air bag; the air bag is arranged inside the water ballast;
the air pressure adjusting device is used for adjusting the air pressure in the air bag; the air pressure adjusting device is communicated with the air bag.
The beneficial effects of the utility model reside in that:
the control of the water pressure in the water pressure cabin is realized by controlling the air pressure in the air bag, and the method can be applied to a deepwater compression simulation test for functionally examining underwater actions of underwater equipment; when the volume of the test piece in the hydraulic pressure cabin rapidly expands or reduces in a short time, the water pressure in the hydraulic pressure cabin can be kept basically stable, and the problem that the pressure is greatly increased or reduced due to the fact that water cannot be discharged or injected in time is solved; the test piece in the water pressure cabin can meet the action checking process of water drainage or water absorption under different pressure conditions, and the pressure in the water pressure cabin is ensured to change according to the set value.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic diagram illustrating the control of the water pressure in the water pressure chamber according to the present invention;
in the figure: 1. ballasting with water; 2. an air bag container; 3. an air bag; 4. a first gas pipe joint; 5. a first air pipe; 6. a first wall-penetrating plug; 7. a pressure transmitter; 8. a second through-wall plug; 9. a proportional valve; 10. a gas source; 11. a second air pipe; 12. a test piece; 13. and a second air pipe joint.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, a deep water pressure simulation test apparatus includes:
a water ballast 1; water is injected into the water ballast 1; the test piece 12 is placed in the water ballast 1;
an air bag 3; the air bag 3 is arranged inside the water ballast 1;
the air pressure adjusting device is used for adjusting the air pressure in the air bag 3; the air pressure adjusting device is communicated with the air bag 3.
In the embodiment, the air pressure in the air bag 3 can be adjusted through the air pressure adjusting device, and the air pressure adjusting device of any type falls into the protection range of the application;
as shown in fig. 1, the air pressure regulating device comprises a proportional valve 9 and an air source 10, wherein the air source 10 is communicated with the air bag 3 through a second air pipe 11; a proportional valve 9 is provided on the second air tube 11 and is used to control the inflation and deflation of the air bag 3 by the air source 10.
As shown in fig. 1, the deepwater pressure simulation test device also comprises an air bag container 2 for fixing an air bag 3; the air bag container 2 is arranged inside the water ballast 1; the air bag 3 is arranged inside the air bag container 2; the test piece 12 is placed on the airbag case 2; the inside of the water ballast 1 is communicated with the inside of the air bag container 2, and both are filled with water.
As shown in fig. 1, the deepwater pressure simulation test device further comprises a pressure transmitter 7; the pressure transmitter 7 is communicated with the air bag 3 through the first air pipe 5. The pressure transmitter 7 is used to detect the pressure inside the airbag 3.
As shown in fig. 1, the pressure transmitter 7, the gas source 10 and the proportional valve 9 are all placed outside the water ballast 1.
As shown in fig. 1, a first end of a first air tube 5 passes through the air bag container 2 and then is communicated with the air bag 3 through a first air tube connector 4; the second end of the first air pipe 5 passes through the water ballast 1 through a first wall-through plug 6 and then is communicated with a pressure transmitter 7; the first end of the second air pipe 11 passes through the air bag container 2 and then is communicated with the air bag 3 through a second air pipe joint 13; the second end of the second air pipe 11 is communicated with the proportional valve 9 after passing through the water ballast 1 through the second through-wall plug 8.
As shown in FIG. 1, an air bag container 2 is installed at the bottom of the water ballast 1 and serves to restrain an air bag 3 at the bottom of the water ballast 1. This arrangement avoids interference with the test caused by the air bag 3 floating up.
In this embodiment, the volume of the air bag 3 is determined according to the volume of the water ballast 1 and the inflated volume of the test piece 12.
Preferably, the pressure transmitter 7, the gas source 10 and the proportional valve 9 are all placed outside the water ballast 1.
A deep water pressure simulation test method comprises the following steps:
s1, putting the test piece and the air bag into a water ballast;
s2, filling the water ballast with water;
and S3, inflating and deflating the air bag through the air pressure adjusting device, wherein the air pressure is used for controlling the air pressure in the air bag, and further the water pressure in the water pressure cabin.
S3 specifically includes:
the pressure transmitter feeds back the measured pressure in the air bag to the controller, and the deviation between the given pressure and the measured pressure is used as the input of the controller;
and outputting the control quantity obtained by calculation of the controller to the proportional valve to control the inflation and deflation of the proportional valve and the opening degree of the proportional valve, and further enabling the actual pressure in the air bag to follow the change of the given pressure.
As shown in fig. 2, the composition of the control system is shown:
the control principle is that the pressure transmitter feeds back the measured pressure in the air bag to the A/D module of the controller (such as P L C), the deviation of the given pressure and the measured pressure is used as the input of the controller, and the control quantity obtained by calculation of the controller is output to the proportional valve through the D/A module so as to control the inflation, deflation and opening degree of the proportional valve, so that the pressure in the air bag is adjusted, and the actual pressure in the air bag is ensured to follow the change of the given pressure.
This application can carry out a hydrostatic test's pressure loading method, at first with the pressure cabin fill up water, be full of gas in the gasbag 3 simultaneously, according to the feedback pressure value of the pressure transmitter 7 of being connected with gasbag 3, through the control to atmospheric pressure proportional valve 9, realize the control to gasbag 3 internal gas pressure, in sealed water pressure cabin 1, according to the pressure transmission principle, atmospheric pressure in the gasbag 3 is unanimous basically with the outer water pressure of gasbag 3, can realize the control to the lift of pressure cabin internal water pressure through the control to gasbag 3 internal gas pressure.
In addition, in the test process, under certain water pressure, the volume of the test piece 12 is rapidly expanded to indirectly compress the volume of the air bag 3, and the air bag 3 plays a role in buffering, so that the water pressure in the water pressure chamber 1 cannot be immediately and greatly increased;
meanwhile, a pressure transmitter 7 connected with the air bag 3 detects the rise of the air pressure, and the air pressure proportional valve 9 is adjusted by a control system to deflate, so that the water pressure in the water ballast 1 is kept basically stable.
The volume of the test piece 12 is rapidly reduced, and the air bag 3 is automatically expanded, so that the water pressure in the water ballast 1 is not immediately and greatly reduced; meanwhile, a pressure transmitter 7 connected with the air bag 3 detects the air pressure reduction, and the air pressure proportional valve 9 is adjusted by a control system to inflate, so that the water pressure in the water ballast 1 is kept basically stable. By the method, the problems caused by high volume elastic modulus and almost no compressibility of water are solved, and the water pressure control is converted into air pressure control, so that the pressure stability is realized.
In addition, in the test process, when the test piece 12 needs to be drained or absorbed in the water pressure chamber 1 in the pressure loading process, the air pressure in the air bag 3 is changed by controlling the air pressure proportional valve 9 of the air bag 3 to be deflated or aerated, so that the water pressure in the water ballast 1 is changed along with the set value of the required pressure of the test piece 12.
The shape, size and volume of the leather bag can be designed according to the volume of the water ballast 1, the expansion volume of the test piece 12 and the test index requirements, and the flexibility is good. For example, if the pressure fluctuation of the water during the rapid expansion of the volume of the test piece 12 is required to be not more than 10% during the test, the volume of the bladder 3 may be designed to be more than 10 times the expansion volume of the test piece 12, and the pressure fluctuation of the pressure inside the ballast tank 1 during the rapid expansion of the volume of the test piece 12 can satisfy the specification requirement of not more than 10% due to the cushioning effect of the bladder 3 even without considering the active control of the deflation.
Utilize this application to carry out pressure loading control: after the test piece 12 is placed in the water pressure cabin 1, the water pressure cabin 1 is filled with water; the air source 10 is opened, the air bag 3 is inflated and deflated by adjusting the proportional valve 9, and the pressure transmitter 7 feeds back the pressure value in the air bag 3 to the control system to control the pressure in the air bag 3; according to the pressure transmission principle, the air pressure in the air bag 3 is basically consistent with the water pressure outside the air bag 3, and the control of the rising and falling of the water pressure in the water ballast 1 can be completed.
Utilize this application to carry out the test piece 12 volume constant voltage control that changes rapidly: after the test piece 12 is submerged to a certain depth of water, a constant pressure environment simulation is performed during the process of rapid and large-scale expansion (or contraction) of the volume of the test piece 12. Firstly, loading the pressure in the water ballast 1 to a given value through an air source 10 and a proportional valve 9, and controlling the air bag 3 to maintain the pressure; if the volume of the designed air bag 3 is much larger than the volume change of the test piece 12, the pressure rise (or fall) in the water pressure chamber 1 caused by the volume expansion (or contraction) of the test piece 12 is completely absorbed (or supplemented) by the air bag 3, and the pressure in the water pressure chamber 1 is ensured to be basically constant. If the air bag 3 is not large enough to fully absorb (or supplement) the rising (or falling) pressure due to space limitation, the pressure transmitter 7 detects the rising (or falling) of the pressure in the ballast 1 and rapidly deflates (or inflates) the proportional valve 9 to ensure that the pressure in the ballast 1 is constant.
Utilize this application to carry out the simulation of gliding process pressure under water: the underwater glider absorbs water in the submerging process, but the pressure borne by the underwater glider is increased in the submerging process, and the pressure in the water pressure cabin 1 is gradually increased by increasing the air pressure in the air bag 3 through adjusting the proportional valve 9, so that the pressure simulation in the submerging process is realized; the underwater glider drains water in the floating process, the pressure borne by the underwater glider is reduced in the process, the water pressure in the water pressure cabin 1 is gradually reduced by reducing the air pressure in the air bag 3 through adjusting the proportional valve 9, and therefore the pressure simulation in the floating process is achieved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A deep water pressure simulation test device is characterized by comprising:
ballasting with water; water is injected into the hydraulic pressure cabin; the test piece is arranged in the water pressure cabin;
an air bag; the air bag is arranged inside the water ballast;
the air pressure adjusting device is used for adjusting the air pressure in the air bag; the air pressure adjusting device is communicated with the air bag.
2. The deep water pressure simulation test device as claimed in claim 1, wherein the air pressure adjusting device comprises a proportional valve and an air source, and the air source is communicated with the air bag through a second air pipe; the proportional valve is arranged on the second air pipe and is used for controlling the air source to inflate and deflate the air bag.
3. The deep water pressure simulation test device as claimed in claim 1, wherein the deep water pressure simulation test device further comprises a balloon container for balloon fixation; the air bag container is arranged inside the water ballast; the air bag is arranged in the air bag container; the test piece is arranged on the air bag container; the interior of the water pressure cabin is communicated with the interior of the air bag container, and water is uniformly injected.
4. A deep water pressure simulation test apparatus according to any one of claims 1 to 3, wherein the deep water pressure simulation test apparatus further comprises a pressure transmitter; the pressure transmitter is communicated with the air bag through a first air pipe.
5. The deep water pressure simulation test device of claim 4, wherein the pressure transmitter, the gas source and the proportional valve are all disposed outside the water pressure chamber.
6. The deep water pressure simulation test device according to claim 5, wherein the first end of the first air pipe passes through the air bag container and then is communicated with the air bag through the first air pipe joint; the second end of the first air pipe passes through the water ballast through a first wall-through plug and then is communicated with the pressure transmitter; the first end of the second air pipe penetrates through the air bag container and is communicated with the air bag through a second air pipe joint; and the second end of the second air pipe passes through the water ballast through a second wall-penetrating plug and then is communicated with the proportional valve.
7. The deep water pressure simulation test device according to claim 3, wherein the air bag container is installed at the bottom of the water pressure cabin and is used for binding the air bag at the bottom of the water pressure cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020131036.4U CN211180673U (en) | 2020-01-20 | 2020-01-20 | Deep water compression molding simulation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020131036.4U CN211180673U (en) | 2020-01-20 | 2020-01-20 | Deep water compression molding simulation test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211180673U true CN211180673U (en) | 2020-08-04 |
Family
ID=71801742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020131036.4U Active CN211180673U (en) | 2020-01-20 | 2020-01-20 | Deep water compression molding simulation test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211180673U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051155A (en) * | 2020-09-17 | 2020-12-08 | 中国地质大学（武汉） | Deepwater pressure environment test device |
| CN113812347A (en) * | 2021-09-06 | 2021-12-21 | 中国人民解放军海军特色医学中心 | Suit cabin adds decompression system |
| CN117378514A (en) * | 2023-11-29 | 2024-01-12 | 中国人民解放军海军特色医学中心 | Animal experiment system under high-pressure environment |
-
2020
- 2020-01-20 CN CN202020131036.4U patent/CN211180673U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051155A (en) * | 2020-09-17 | 2020-12-08 | 中国地质大学（武汉） | Deepwater pressure environment test device |
| CN113812347A (en) * | 2021-09-06 | 2021-12-21 | 中国人民解放军海军特色医学中心 | Suit cabin adds decompression system |
| CN117378514A (en) * | 2023-11-29 | 2024-01-12 | 中国人民解放军海军特色医学中心 | Animal experiment system under high-pressure environment |
| CN117378514B (en) * | 2023-11-29 | 2024-04-02 | 中国人民解放军海军特色医学中心 | Animal experiment system under high-pressure environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211180673U (en) | Deep water compression molding simulation test device | |
| CN111090288A (en) | Deepwater compression molding simulation test device and test method | |
| CA2533146A1 (en) | Inflatable mailer, apparatus and method for preparing the same | |
| CN201697768U (en) | Inflatable air bag type sealed container leakage detector | |
| WO1996028088A3 (en) | Venous pump efficiency test system and method | |
| US8522708B2 (en) | Inflatable boat having self-inflation system | |
| CN106644388B (en) | Test device and test method for deep water floating of folding floating bag of unmanned underwater vehicle | |
| CN104482217A (en) | Self compensating type inflatable soft sealing method with remote control function | |
| CN203544338U (en) | High strength air bag with double cavity automatic air supply function | |
| CN207225610U (en) | A kind of sea unmanned plane floating stop device air bag component | |
| CN103466056A (en) | Intelligent fender capable of pneumatically adjusting water level | |
| CN102642605A (en) | Diving device for diving facility | |
| CN115465429B (en) | Emergency drainage device and drainage method for underwater vehicle with double protection functions | |
| NZ593883A (en) | Safety anchor device comprising an inflatable container that can be filled with water where a pair of walls are internall connected by drop threads so as to limit the seperation between them on inflation | |
| CN201799018U (en) | Backpack life saving equipment | |
| CN201035419Y (en) | Inflator pressure automatic control device | |
| TW200624329A (en) | Body-worn object | |
| CN112265658B (en) | Distribution simulation test system for leakage and residual quantity of on-orbit fuel storage tank of spacecraft | |
| CN201865701U (en) | Soft passage | |
| CN205998101U (en) | Buoy with floating gasbag | |
| CN205938512U (en) | Accurate pressure relief device of threshold value adjustable | |
| CN1603204A (en) | Multifunctional normal pressure type diving suit | |
| RU2524514C1 (en) | Method of controlling buoyancy of underwater vehicle | |
| CN209799998U (en) | Passive inflatable airbag device for preventing tunnel from collapsing continuously | |
| CN220757452U (en) | Intrauterine adhesion prevention and cure device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |