Underwater container pressure environment control system and equipment

Abstract

The invention discloses a pressure environment control system for an underwater container, which belongs to the technical field of diving equipment and comprises the underwater container, a control module, a monitoring module, an air inlet module and an air exhaust module are arranged in the underwater container, and the control module is connected with the monitoring module through a wire. The air inlet module and the exhaust module are connected with the monitoring module through wires. According to the underwater container pressure environment control system, the environment control system can control the internal and external pressure difference value of the container to be kept relatively constant along with the change of the water depth, and under the condition that the internal and external pressure difference value is constant, namely the difference value is usually small, the container can be designed to be small in wall thickness, so that the weight of the container is greatly reduced, the use of buoyancy materials is reduced, and the volume of the container is reduced; and the energy consumption of the hoisting and propelling device is reduced, and the engineering applicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of diving equipment, and in particular to a pressure environment control system and equipment for underwater containers. Background Art

[0002] In underwater rescue, exploration, and construction projects, engineering equipment containers are often required to enter the water for related operations. Underwater, as the water depth increases, the water pressure on the container is also increasing. In order to ensure that the container can withstand the increasing external or internal pressure and ensure the smooth implementation of the project, the container is designed at the beginning according to the maximum external or internal pressure that may be received during the engineering practice. In this case, the wall thickness of the designed container is usually quite large, resulting in a large weight and volume of the container. The hoisting device and underwater propulsion device supporting the container will also increase the energy consumption demand accordingly, resulting in serious functional waste, and there are many defects in the practical engineering application process. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an underwater container pressure environment control system, which can control the pressure difference between the inside and outside of the container to remain relatively constant as the water depth changes.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pressure environment control system for an underwater container, including an underwater container, in which a control module, a monitoring module, an air intake module and an exhaust module are arranged, the control module is connected to the monitoring module through a wire, and the air intake module and the exhaust module are respectively connected to the monitoring module through a wire.

[0005] Preferably, the control module is controlled by a PLC logic circuit.

[0006] Preferably, the air intake module is connected to the air intake pipe of the air inlet of the underwater container, and the air intake module adopts a high-precision proportional control valve to open to a predetermined opening by receiving a signal from the control module to control the air intake flow.

[0007] Preferably, the exhaust module is connected to the exhaust pipe of the exhaust port of the underwater container, and the exhaust module adopts a high-precision proportional control valve to open to a predetermined opening by receiving a signal from the control module to control the exhaust flow.

[0008] Preferably, the monitoring module includes a plurality of pressure transmitters, which are arranged inside and outside the underwater container and are used to monitor pressure changes inside and outside the underwater container.

[0009] A control method for an underwater container pressure environment control system comprises the following steps: (1) When the container dives, the water depth and pressure continue to increase. The system monitors the water depth and internal pressure of the container in real time through the pressure transmitter of the monitoring module, and feeds back to the control module. The control module compares the pressure difference between the inside and outside of the container and sends a command to the air intake module to open the valve of the air intake module to a pre-set opening, supplying air to the inside of the container and pressurizing it, so that the internal and external pressures of the underwater container increase simultaneously during the diving process, achieving pressure balance inside and outside the container; (2) When the underwater container finishes its work and floats up, the water depth becomes shallower and the pressure begins to drop. The system continuously monitors the water depth and the pressure inside the cabin through the pressure transmitter of the monitoring module. The control module sends a command to the exhaust module after comparing the pressure difference between the inside and outside of the container. The pneumatic diaphragm valve of the exhaust module is opened to a pre-set opening to exhaust air outwards, reducing the internal pressure of the container. The internal and external pressures of the underwater container are reduced simultaneously during the floating process, thus achieving a pressure balance inside and outside the container.

[0010] By adopting the technical solution of the present invention, the following beneficial effects can be obtained: The underwater container pressure environment control system of the present invention can control the pressure difference between the inside and outside of the container to remain relatively constant as the water depth changes. When the pressure difference between the inside and outside is constant (the difference is usually small), the container can be designed with a smaller wall thickness, which greatly reduces the weight of the container, reduces the use of buoyancy materials, reduces the volume of the container, and reduces the energy consumption of the hoisting and propulsion devices, thus having strong engineering applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following is a brief description of the contents and symbols in the drawings of this specification: Figure 1 This is the operation logic block diagram of the pressure control system equipment; Figure 2 This is the control logic block diagram of this pressure control system; The markings in the above figures are: 1. underwater container; 2. control module; 3. monitoring module; 4. air intake module; 5. exhaust module. DETAILED DESCRIPTION

[0012] The following is a detailed description of the embodiments of the present invention, such as the shapes and structures of the components involved, the relative positions and connection relationships between the components, the functions and working principles of the components, etc., with reference to the accompanying drawings.

[0013] like Figure 1As shown, the present invention is used for an underwater container pressure environment control system, including an underwater container, wherein a control module 2, a monitoring module 3, an air intake module 4 and an exhaust module 5 are arranged in the underwater container 1, the control module 2 is connected to the monitoring module 3 through a wire, the air intake module 4 and the exhaust module 5 are respectively connected to the monitoring module 3 through a wire, and the control module 2 is controlled by a PLC logic circuit.

[0014] like Figure 1 As shown, the air intake module 4 is connected to the air intake pipe of the air inlet of the underwater container 1. The air intake module 4 adopts a high-precision proportional regulating valve to open to a predetermined opening by receiving a signal from the control module 2 to control the air intake flow. The exhaust module 5 is connected to the exhaust pipe of the exhaust port of the underwater container 1. The exhaust module 5 adopts a high-precision proportional regulating valve to open to a predetermined opening by receiving a signal from the control module 2 to control the exhaust flow. The monitoring module 3 includes a plurality of pressure transmitters, which are arranged inside and outside the underwater container 1 to monitor the pressure changes inside and outside the underwater container 1.

[0015] like Figure 2 As shown, the control method for the underwater container pressure environment control system comprises the following steps: (1) When the container dives, the water depth and pressure increase continuously. The system monitors the water depth and internal pressure of the container in real time through the pressure transmitter of the monitoring module 3, and feeds back to the control module 2. The control module 2 compares the pressure difference between the inside and outside of the container and sends a command to the air intake module 4 to open the valve of the air intake module 4 to a pre-set opening, supplying air to the inside of the container and pressurizing it, so that the internal and external pressures of the underwater container 1 increase simultaneously during the diving process, achieving pressure balance inside and outside the container; (2) When the underwater container 1 finishes its work and floats up, the water depth becomes shallower and the pressure begins to drop. The system continuously monitors the water depth and the pressure inside the cabin through the pressure transmitter of the monitoring module 3. The control module 2 compares the pressure difference between the inside and outside of the container and sends a command to the exhaust module 5 to open the pneumatic diaphragm valve of the exhaust module 5 to a pre-set opening, exhaust the air outward, reduce the internal pressure of the container, and reduce the internal and external pressures of the underwater container during the floating process, thereby achieving a pressure balance inside and outside the container.

[0016] The underwater container pressure environment control system can control the pressure difference between the inside and outside of the container to remain relatively constant as the water depth changes. When the pressure difference between the inside and outside is constant (the difference is usually small), the container can be designed with a smaller wall thickness, which greatly reduces the weight of the container, reduces the use of buoyancy materials, reduces the volume of the container, and reduces the energy consumption of the hoisting and propulsion devices, and has strong engineering applicability.

[0017] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A pressure environment control system for an underwater container, comprising an underwater container, characterized in that: A control module, a monitoring module, an air intake module and an exhaust module are arranged in the underwater container. The control module is connected to the monitoring module through a wire, and the air intake module and the exhaust module are respectively connected to the monitoring module through a wire.

2. The pressure environment control system for underwater containers according to claim 1, characterized in that: The control module is controlled by a PLC logic circuit.

3. The pressure environment control system for underwater containers according to claim 1, characterized in that: The air intake module is connected to the air intake pipeline of the air inlet of the underwater container. The air intake module adopts a high-precision proportional regulating valve to open to a predetermined opening by receiving a signal from a control module to control the air intake flow.

4. The pressure environment control system for an underwater container according to claim 1, characterized in that: The exhaust module is connected to the exhaust pipe of the underwater container exhaust port. The exhaust module adopts a high-precision proportional regulating valve to open to a predetermined opening by receiving a signal from the control module to control the exhaust flow.

5. The pressure environment control system for an underwater container according to claim 1, characterized in that: The monitoring module includes a plurality of pressure transmitters, which are arranged inside and outside the underwater container and are used to monitor the pressure changes inside and outside the underwater container.

6. A control method for an underwater container pressure environment control system, characterized in that: The steps include: (1) When the container dives, the water depth and pressure continue to increase. The system monitors the water depth and internal pressure of the container in real time through the pressure transmitter of the monitoring module, and feeds back to the control module. The control module compares the pressure difference between the inside and outside of the container and sends a command to the air intake module to open the valve of the air intake module to a pre-set opening, supplying air to the inside of the container and pressurizing it, so that the internal and external pressures of the underwater container increase simultaneously during the diving process, achieving pressure balance inside and outside the container; (2) When the underwater container finishes its work and floats up, the water depth becomes shallower and the pressure begins to drop. The system continuously monitors the water depth and the pressure inside the cabin through the pressure transmitter of the monitoring module. The control module sends a command to the exhaust module after comparing the pressure difference between the inside and outside of the container. The pneumatic diaphragm valve of the exhaust module is opened to a pre-set opening to exhaust air outwards, reducing the internal pressure of the container. The internal and external pressures of the underwater container are reduced simultaneously during the floating process, thus achieving a pressure balance inside and outside the container.

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