Pressurizing device of deep sea simulation test chamber

Abstract

The utility model discloses a pressurizing device of a deep sea simulation test cabin, which comprises a pressurizing tank, a hydraulic station, a control valve group and a simulation test tank, the pressurizing tank comprises a lower tank body and an upper tank body, and the side wall of the lower tank body is connected with a water inlet valve and a drain valve; an oil inlet pipe and an oil return pipe are arranged on the upper tank body; an elastic diaphragm is arranged between the lower edge of the upper tank body and the upper edge of the lower tank body; a pressurization cabin is formed between the interior of the upper tank body and the elastic diaphragm, and a water injection cabin is formed between the interior of the lower tank body and the elastic diaphragm; the control valve group is connected with the hydraulic station through an oil pipe; an oil inlet pipe and an oil return pipe arranged on the upper tank body are connected with the control valve group through oil pipes; the device has the advantages of being high in deep sea simulation pressure precision, good in deep sea simulation pressure stability, convenient to pressurize and adjust, low in noise, free of pollution and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of simulated deep sea pressure, in particular to a pressurizing device for a deep sea simulation test chamber. Background Art

[0002] Equipment and instruments used for deep diving, resource exploration, and underwater operations in marine engineering often work in an environment hundreds or even thousands of meters below the sea. As the depth of the ocean increases, the seawater back pressure that such equipment and instruments need to withstand is also getting higher and higher. Once a failure occurs, it will bring high construction and maintenance costs. In order to verify whether such equipment and instruments can work normally and reliably in the high-pressure environment of the deep sea, a large number of pressure bearing, sealing reliability and other tests must be carried out in a simulated seawater depth environment before being put into use; the existing deep-sea simulation test pressurization generally uses gas pressurization, but due to the compressible nature of air, there are problems such as low accuracy of deep-sea simulation pressure, poor stability of deep-sea simulation pressure, inconvenient pressurization adjustment, and high noise. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a pressurizing device for a deep-sea simulation test chamber. The deep-sea simulation pressure has high accuracy, good stability, convenient pressurization adjustment, low noise, and no pollution, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressurizing device for a deep-sea simulation test chamber, comprising a pressurizing tank, a hydraulic station and a control valve group, the pressurizing tank comprising a lower tank body and an upper tank body, the side wall of the lower tank body being connected with a water inlet valve and a water outlet valve; the upper tank body being provided with an oil inlet pipe and an oil return pipe; an elastic diaphragm being provided between the lower edge of the upper tank body and the upper edge of the lower tank body, and the lower edge of the upper tank body and the upper edge of the lower tank body being fixedly connected and pressing the elastic diaphragm; a pressurizing chamber being formed between the interior of the upper tank body and the elastic diaphragm, and a water injection chamber being formed between the interior of the lower tank body and the elastic diaphragm; the control valve group being connected to the hydraulic station via an oil pipe, and the oil inlet pipe and the oil return pipe provided on the upper tank body being connected to the control valve group via an oil pipe.

[0005] Furthermore, the lower edge of the upper tank body and the upper edge of the lower tank body are detachably fixedly connected by bolts.

[0006] Furthermore, the top end of the side wall of the lower tank body is connected with an exhaust valve.

[0007] Furthermore, a drain valve is connected to the bottom end of the lower tank body.

[0008] Furthermore, the oil return pipe and the oil inlet pipe are respectively located at the top end and the side end of the upper tank body.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the pressurizing device of the deep-sea simulation test chamber fills hydraulic oil into the pressurized chamber in the pressurized tank through the hydraulic station, the control valve group and the oil inlet pipe, and the elastic diaphragm is deformed and concave by the oil pressure of the pressurized chamber to pressurize the interconnected water injection chamber and the simulation test tank; the gas in the water injection chamber is easily discharged through the exhaust valve, the simulation pressure accuracy is improved, the simulation pressure stability is good, the pressurization adjustment is convenient, the noise is small, and there is no pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the pressurizing device of the utility model when in use.

[0012] In the figure: 1. Lower tank body; 2. Water inlet valve; 3. Upper tank body; 4. Oil inlet pipe; 5. Oil return pipe; 6. Elastic diaphragm; 7. Hydraulic station; 8. Control valve group; 9. Drain valve; 10. Exhaust valve; 11. Drain valve; 12. Pressurized tank; 13. Water filling tank; 14. Simulated test tank. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0014] See also Figure 1-2 The utility model provides a technical solution: a pressurizing device for a deep-sea simulation test chamber, comprising a pressurizing tank, a hydraulic station 7 and a control valve group 8, wherein the pressurizing tank comprises a lower tank body 1 and an upper tank body 3, wherein a water inlet valve 2 and a drain valve 9 are connected to the side wall of the lower tank body 1, and an exhaust valve 10 is connected to the top of the side wall of the lower tank body 1; an oil inlet pipe 4 and an oil return pipe 5 are arranged on the upper tank body 3; an elastic diaphragm 6 is arranged between the lower edge of the upper tank body 3 and the upper edge of the lower tank body 1, and the lower edge of the upper tank body 3 and the upper edge of the lower tank body 1 are detachably fixedly connected and the elastic diaphragm 6 is pressed by bolts; a pressurizing chamber 12 is formed between the interior of the upper tank body 3 and the elastic diaphragm 6, and a water injection chamber 13 is formed between the interior of the lower tank body 1 and the elastic diaphragm 6; the control valve group 8 is connected to the hydraulic station 7 through an oil pipe, and the oil inlet pipe 4 and the oil return pipe 5 arranged on the upper tank body 3 are both connected to the control valve group 8 through an oil pipe;

[0015] The bottom end of the lower tank body 1 is connected with a drain valve 11, through which the seawater inside the lower tank body 1 can be discharged.

[0016] Working principle:

[0017] Before pressurization: the lower tank body 1 is connected to the simulation test tank 14 through the drain valve 9 and the connecting pipe, the sewage valve 11 is closed, the water inlet valve 2, the drain valve 9 and the exhaust valve 10 are opened, and the external water supply equipment injects water into the water filling tank 13 in the pressurized tank through the water inlet valve 2. Since the water filling tank 13 is connected to the simulation test tank 14 through the drain valve 9 and the connecting pipe, the water level in the water filling tank 13 will flow into the simulation test tank 14 after it is higher than the drain valve 9. As the water level in the water filling tank 13 increases, the internal gas is squeezed out by seawater. When the water filling tank 13 is filled with seawater, the exhaust valve 10 is closed; since the water filling tank 13 is connected to the simulation test tank 14 through the drain valve 9 and the connecting pipe, the hydraulic pressure in the lower tank body 1 is the same as the hydraulic pressure in the simulation test tank 14.

[0018] Pressurization: The control valve group 8 opens the oil port connected to the oil inlet pipe 4 and the oil return pipe 5, and turns on the hydraulic station 7. The hydraulic station 7 fills hydraulic oil into the pressurization tank 12 in the pressurization tank through the control valve group 8 and the oil inlet pipe 4, so that the air in the pressurization tank 12 is discharged to the hydraulic station 7 through the oil return pipe 5. When the pressurization tank 12 is filled with oil, the oil port connected to the control valve group 8 and the oil return pipe 5 is closed, and hydraulic oil is continued to be added to the pressurization tank 12 through the hydraulic station 7. The pressure in the pressurization tank 12 continues to increase. When the hydraulic pressure in the pressurization tank 12 is greater than the hydraulic pressure in the water injection tank 13, the elastic diaphragm 6 is deformed and concave by the oil pressure, so that the hydraulic pressure in the pressurization tank 12 pressurizes the seawater in the water injection tank 13 through the elastic diaphragm 6. Since the water injection tank 13 is connected to the simulation test tank 14, the hydraulic pressure in the water injection tank 13 is the same as the pressure in the simulation test tank 14. Hydraulic oil is continued to be added to the pressurization tank 12 through the hydraulic station 7 until the internal pressure of the simulation test tank 14 meets the deep sea test pressure.

[0019] The pressurizing device of the deep-sea simulation test chamber disclosed in the present embodiment fills hydraulic oil into the pressurizing chamber 12 in the pressurizing tank through the hydraulic station 7, the control valve group 8 and the oil inlet pipe 4, and the elastic diaphragm 6 is deformed and concave by the oil pressure of the pressurizing chamber 12 to pressurize the interconnected water injection chamber 13 and the simulation test tank 14; the gas in the water injection chamber 13 is conveniently discharged through the exhaust valve 10, so as to improve the simulation pressure accuracy, improve the simulation pressure stability, facilitate the pressurization adjustment, reduce noise and cause no pollution.

[0020] Furthermore, the oil return pipe 5 and the oil inlet pipe 4 are respectively located at the top end and the side end of the upper tank body 3 .

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressurizing device for a deep-sea simulation test chamber, comprising a pressurizing tank, a hydraulic station and a control valve group, characterized in that: The pressurized tank comprises a lower tank body and an upper tank body, and a water inlet valve and a drain valve are connected to the side wall of the lower tank body; an oil inlet pipe and an oil return pipe are provided on the upper tank body; an elastic diaphragm is provided between the lower edge of the upper tank body and the upper edge of the lower tank body, and the lower edge of the upper tank body and the upper edge of the lower tank body are fixedly connected and press the elastic diaphragm; a pressurized chamber is formed between the interior of the upper tank body and the elastic diaphragm, and a water injection chamber is formed between the interior of the lower tank body and the elastic diaphragm; the control valve group is connected to the hydraulic station through an oil pipe, and the oil inlet pipe and the oil return pipe provided on the upper tank body are both connected to the control valve group through the oil pipe.

2. A pressurizing device for a deep sea simulation test chamber according to claim 1, characterized in that: The lower edge of the upper tank body and the upper edge of the lower tank body are detachably fixedly connected by bolts.

3. A pressurizing device for a deep sea simulation test chamber according to claim 1, characterized in that: The top end of the side wall of the lower tank body is connected with an exhaust valve.

4. The pressurizing device for a deep sea simulation test chamber according to claim 1, characterized in that: The bottom end of the lower tank is connected with a drain valve.

5. The pressurizing device for a deep sea simulation test chamber according to claim 1, characterized in that: The oil return pipe and the oil inlet pipe are respectively located at the top end and the side end of the upper tank body.

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