Deepwater explosion damage effect test device suitable for flat plate structure

Abstract

The invention belongs to the technical field of underwater environment explosion simulation tests, and discloses a flat plate structure deepwater explosion damage effect test device which comprises an upper tank, the bottom of the upper tank is connected with a tool plate through a flange plate bolt, and the bottom end of the tool plate is connected with the top of a lower tank through a flange plate bolt. The upper tank supporting foot is connected with the top of the support through an outer hexagon bolt, and the bottom of the support is connected to the square steel plate through electric welding. The air inlet hole is connected with an external air supply system and is used for inputting high-pressure air into the container; the water inlet hole is connected with an external water supply system and is used for injecting water into the container; the sensing port is used for installing a sensor, and the wire outlet hole is mainly used for installing a test explosive; and glass is mounted in the sight glass hole and is used for observing the test process in the container.

Description

Technical Field

[0001] The invention belongs to the technical field of explosion tests in simulated deep water environments, and in particular relates to a deep water simulated damage effect test device suitable for a flat plate structure. Background Art

[0002] The deep sea has rich resources and vast space; all maritime powers are stepping up research on deep-sea technology and deepening its application in the military field, whether it is weapons and equipment used for deep-sea operations or infrastructure adapted to the deep-sea environment, with the intention of occupying the commanding heights and initiative in this new space; the demand for the destructive capability of deep-sea weapons and the anti-explosion protection technology of equipment and facilities is also growing, which also poses new challenges to deep-water explosion test technology.

[0003] High hydrostatic pressure is a prominent feature of the deep-sea environment; the premise and basis for conducting deep-water explosion simulation tests is the ability to accurately simulate the high hydrostatic pressure environment; currently, deep-water explosion pressure tanks are widely used at home and abroad to simulate deep-water explosion test environments.

[0004] The flat plate structure is a typical engineering component. Research on its response and damage under deep-water explosion is of great significance to the design of engineering protection. The existing deep-water explosion test equipment mainly provides a universal explosion container environment that can apply hydrostatic pressure. However, during the specific implementation, it is necessary to design and install tooling fixtures according to different test purposes, and sometimes the container needs to be modified, which limits the relevant tests to a certain extent. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a deep water explosion damage effect test device suitable for a flat plate structure.

[0006] The present invention adopts the following technical solutions to achieve the above-mentioned purpose: A deep-water simulated damage effect test device suitable for a flat-plate structure, characterized in that: the test device has an upper tank and a lower tank; the upper tank is a structure with an opening at the lower end; the lower tank is a structure with an opening at the upper end; a tooling plate is provided between the upper tank and the lower tank to divide the space between the upper tank and the lower tank; the tooling plate is fixed between the upper and lower tanks, and a test sample is installed on the tooling plate; the tooling plate has a plurality of through holes evenly distributed along the circumference for connecting the upper tank and the lower tank, and each of the through holes is installed with a bolt to make the space between the upper tank and the lower tank airtight to each other; an air inlet and a water inlet are provided on the upper tank; the air inlet is connected to an external air supply system for inputting high-pressure air into the container, and the water inlet is connected to an external water supply system for injecting water into the container The upper tank is provided with a wire outlet hole for installing the test explosive on the top; the lower tank is filled with air or water medium; the upper tank and the lower tank are provided with sight glass holes for observing the test process in the container; the sight glass holes are installed with explosion-proof glass; the upper tank is injected with water through the water inlet hole, and the lower tank is water or air medium, so that the test component can contact different media; water is firstly injected into the upper tank, and then high-pressure nitrogen is injected through the air inlet, the pressure is 0-2Mpa, simulating the test component in the deep water environment of 0-200m, when the upper tank and the lower tank are sealed with each other, the upper tank is pressurized water medium, and the lower tank is air, simulating the test environment of the back-air board; the bolts on the tooling plate are opened to make the upper tank and the lower tank connected to each other, and the upper and lower tanks are both pressurized water medium, simulating the test environment of the back-water board.

[0007] The upper tank and the lower tank are both provided with sensing ports for installing sensors.

[0008] The upper tank is connected to the top of the tooling plate through flange bolts; the legs of the upper tank are connected to the top of the support through external hexagonal bolts, and the bottom of the support is connected to the square steel plate through electric welding.

[0009] The present invention proposes a flat plate structure deep water explosion damage effect test system, which adopts the above technical solution and has the following beneficial effects: The device is a closed high-pressure container composed of an upper tank and a lower tank connected by a flange. The test piece is set inside the container through a tooling plate. The test piece and the tooling plate completely isolate the upper and lower tanks from water. Compared with the general explosion container environment, this device can fill a certain depth of water in the container through the water injection hole of the upper tank, and inject high-pressure air through the air inlet hole to simulate pressurization and realize hydrostatic pressure loading. At the same time, it can also simulate the deep-water environment of back-water and back-air structures by controlling the number of installed component bolts, thereby realizing the study of deep-water environment damage effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0011] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0012] Figure 3 It is a schematic diagram of the connection between the test component and the tooling plate of the present invention.

[0013] In the figure: 1. upper tank; 2. lower tank; 3. tooling plate; 4. support; 5. air inlet; 6. water inlet; 7. sensor port; 8. sight glass hole; 9. wire outlet; 10. high-strength bolt; 11. test sample; 12. hexagonal bolt. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1 The present invention provides the following technical solutions: a flat plate structure deep water explosion damage effect test device, comprising an upper tank 1, the bottom of the upper tank 1 is connected to the top of the tooling plate 3 through a flange bolt, the bottom of the tooling plate 3 is connected to the top of the lower tank 2 through a flange bolt, the legs of the upper tank 1 are connected to the top of the support 4 through an external hexagonal bolt 12, and the bottom of the support 4 is connected to the square steel plate through electric welding. The air inlet 5 is connected to the external air supply system to input high-pressure air into the container; the water inlet 6 is connected to the external water supply system to inject water into the container; the sensor port 7 is used to install the sensor, and the outlet hole 9 is mainly used to install the test explosive; the sight glass hole 8 is installed with glass to observe the test process in the container.

[0016] In a specific embodiment of the present invention, the upper tank 1, the lower tank 2, the tooling plate 3, and the support 4 are connected together, the air inlet 5 and the water inlet 6 are connected to the auxiliary equipment, the sensor port 7 is connected to the sensor, and the outlet hole 9 is connected to the explosive, so that the explosion damage effect test of the flat plate in different deep water environments can be carried out.

[0017] Specifically, the test sample 11 is connected to the tooling plate 3 , and a water inlet hole 6 is opened on the wall of the upper tank 1 .

[0018] In this embodiment: by fully installing the bolts of the components and the tooling plate, an independent space is formed between the upper and lower tanks, which is completely isolated and waterproof; the water inlet hole is connected to the external water supply system, and water is injected through the water inlet hole, and the two sides of the tooling plate are in contact with different media; when the bolts of the tooling plate are not fully installed, water can be injected into the lower tank, and the two sides of the tooling plate are in contact with the same medium.

[0019] Specifically, a water inlet hole 6 , an air inlet hole 5 , and a sensor port 7 are opened on the wall of the upper tank 1 .

[0020] In this embodiment: the water inlet is connected to the external water supply system, and the air inlet is connected to the external gas supply system. Water is injected through the water injection hole and different volumes of gas are added through the air inlet, so as to simulate a 0-2Mpa (0-200m) deep water environment.

[0021] Specifically, the upper tank 1 is connected to the support 4 via an external hexagonal bolt 12 , and the upper tank 1 is connected to the lower tank 2 via a high-strength bolt 10 .

[0022] In this embodiment, the high-strength bolts 10 are loosened, and the lower tank 2 is disassembled to replace the test piece, which is convenient for installation.

[0023] The working principle and use process of the flat plate structure deep water structure explosion test system provided by the present invention are as follows: 1. Install the test piece. Disassemble the lower tank, install the structural test piece on the tooling board, and reassemble the lower tank onto the bracket; 2. Arrange the sensor. Arrange the sensor probe in the reserved hole of the container; 3. Lift the explosives. Lift the explosives through the reserved hole on the top of the upper tank and determine the position through the sight glass hole; 4. Fill the water tank with water. Set the amount of water to be injected through the quantitative water supply system and observe the water level through the sight glass hole; 5. Gas supply to the water tank. Nitrogen is input into the high-pressure container through the gas supply system, and the gas supply is stopped when the set pressure value is reached; 6. Detonate the explosives. Detonate the explosives in the high-pressure container through the detonator and observe the explosion effect through the sight glass hole; 7. Data acquisition: Use a computer to record the relevant test data of the specimen in real time.

[0024] 8. Container pressure relief. Control the gas supply system to open the high-pressure shut-off valve to exhaust the high-pressure nitrogen in the high-pressure container; 9. Replace the test piece. Remove the tank, drain the water, replace the test piece, and repeat the above steps to conduct the test.

[0025] Finally, it should be noted that the above embodiment is only one implementation of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. Its specific structure and size can be adjusted accordingly according to actual needs. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A deep-water explosion damage effect test device suitable for flat-plate structures, characterized in that: The test device comprises an upper tank and a lower tank; the upper tank is a structure with an opening at the lower end; the lower tank is a structure with an opening at the upper end; a tooling plate is provided between the upper tank and the lower tank to divide the space between the upper tank and the lower tank; the tooling plate is fixed between the upper and lower tanks, and the test sample is installed on the tooling plate; the tooling plate has a plurality of through holes evenly distributed along the circumference for connecting the upper tank and the lower tank, and each of the through holes is installed with a bolt to seal the space between the upper tank and the lower tank to each other; an air inlet and a water inlet are provided on the upper tank; the air inlet is connected to an external air supply system for inputting high-pressure air into the container, and the water inlet is connected to an external water supply system for injecting water into the container; a water inlet is provided on the top of the upper tank Install the outlet hole of the test explosive; the lower tank is filled with air or water medium; the upper tank and the lower tank are both provided with sight glass holes for observing the test process in the container; the sight glass holes are installed with explosion-proof glass; the upper tank is injected with water through the water inlet hole, and the lower tank is water or air medium, so that the test component can be exposed to different media; water is first injected into the upper tank, and then high-pressure nitrogen is injected through the air inlet, the pressure is 0-2Mpa, simulating the test component in the deep water environment of 0-200m, when the upper tank and the lower tank are sealed with each other, the upper tank is pressurized water medium, and the lower tank is air, simulating the test environment of the back-air plate; open the bolts on the tooling plate, so that the upper tank and the lower tank are connected to each other, and the upper and lower tanks are both pressurized water medium, simulating the test environment of the back-water plate.

2. A deep water explosion damage effect test device suitable for a flat plate structure as claimed in claim 1, characterized in that: The upper tank and the lower tank are both provided with sensing ports for installing sensors.

3. A deep water explosion damage effect test device suitable for a flat plate structure as claimed in claim 1, characterized in that: The upper tank is connected to the top of the tooling plate through flange bolts; the legs of the upper tank are connected to the top of the support through hexagonal bolts, and the bottom of the support is connected to the square steel plate through electric welding.

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