Seawater purification system and purification method for pressure conversion pipeline of seabed load chamber

Abstract

A sea water purification system and purification method for a pressure conversion pipeline of a seabed load cabin, comprising a purification cabin, one end of the purification cabin being communicated with a control valve through a pipeline structure, symmetrical stirrers being arranged at two end positions of the upper part of the purification cabin, a water injection system and an opening being further arranged on the top surface of the purification cabin, the water injection system injecting water into the interior of the purification cabin, the opening being provided with a balance piston through a sealing ring, and a purification system being further arranged in the interior of the purification cabin; a group of rotary doors being symmetrically arranged at the bottom of the purification cabin, a motor being fixed on the outer wall of the purification cabin, an output shaft of the motor being connected with the rotary door, the motor controlling the rotary door to rotate by 90 degrees, and the rotary door being of an L-shaped cross section structure. The system can purify the sea water entering the pressure conversion pipeline, thereby eliminating the risk of the control valve being blocked by sea water impurities and improving the working reliability of the load cabin. Meanwhile, the system and the purification method are simple to use and high in reliability, and have a strong engineering application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of seawater pipeline purification equipment, in particular to a seawater purification system and a purification method for a pressure conversion pipeline of a submarine load compartment. Background Art

[0002] Currently, marine science and technology are experiencing an unprecedented surge in development. Cutting-edge marine technologies, particularly those focused on the development and utilization of deep-sea biological resources, are increasingly demonstrating their enormous economic and scientific value. Deep-sea organisms inhabit depths of thousands or even tens of thousands of meters, exposed to low-light, high-pressure seawater environments for extended periods. Their unique habitat makes it difficult for them to survive long after being recovered from the water. This presents significant challenges for deep-sea biological research. To support deep-sea biological research, the deep-sea engineering equipment sector has developed a subsea payload chamber system for in-situ, real-time biorecovery and transfer. This system rapidly transfers deep-sea organisms from the high-pressure deep sea environment to the atmospheric pressure of manned submersibles, enabling scientists to rapidly and effectively observe live deep-sea organisms in real time within manned submersibles, significantly improving research efficiency.

[0003] The pressure conversion of deep-sea organisms from high-pressure seawater environment to normal-pressure air environment requires pressure conversion through the pressure conversion pipeline on the payload cabin. The basic principle is as follows: Figure 1 As shown, the payload compartment 102 includes a payload compartment door 103 at its bottom. One end of the payload compartment 102 is connected to a manned diving device 104 via the manned compartment door 103. The other end of the payload compartment 102 is equipped with a control valve 101. The interior of the payload compartment 102 is a normal pressure seawater environment. When deep-sea organisms need to enter the payload compartment 102 through the payload compartment door 105, the door cannot be opened due to the pressure difference between the seawater outside the compartment and the seawater inside the payload compartment 102. In this case, the control valve 101 is opened to connect the seawater outside the compartment with the seawater inside the payload compartment 102, achieving pressure equalization, and the payload compartment door 105 can then be opened.

[0004] However, the above-mentioned organism acquisition and transfer system presents certain practical engineering challenges that need to be addressed during use. Furthermore, because one end of the control valve 101 is directly connected to the seawater, the manned submersible 104 can easily disturb the seabed sediment while navigating the seabed or capturing marine organisms, resulting in a large amount of suspended impurities in the seawater. Since the control valve 101 requires precise pressure control and has a very low flow rate, it can easily become clogged by the impurity-laden seawater, causing the entire system to fail. Summary of the Invention

[0005] To address the shortcomings of the aforementioned existing production technologies, the applicant has provided a seawater purification system and method for the pressure conversion pipeline of a submarine payload tank. This system purifies the external seawater entering the pressure conversion pipeline, thereby eliminating the risk of control valves being clogged by seawater impurities and improving the operational reliability of the payload tank. Furthermore, this system and purification method are simple to use and highly reliable, offering promising engineering applications.

[0006] The technical solutions adopted in the present invention are as follows:

[0007] A seawater purification system for a pressure conversion pipeline in a submarine load tank comprises a purification tank, one end of which is connected to a control valve via a pipeline structure, a stirrer No. 1 and a stirrer No. 2 being symmetrically arranged at both ends of the upper portion of the purification tank, the driving parts of the stirrers No. 1 and No. 2 being fixed to the outside of the purification tank, a water injection system and an opening being further provided on the top surface of the purification tank, the water injection system injecting water into the purification tank, a balancing piston being installed at the opening via a sealing ring, and a purification system being further provided inside the purification tank; a set of revolving doors being symmetrically installed at the bottom of the purification tank, a motor being fixed to the outer wall of the purification tank, the output shaft of the motor being connected to the revolving door, the motor controlling the revolving door to rotate 90°, and the revolving door having an L-shaped cross-section structure.

[0008] As a further improvement of the above technical solution:

[0009] A set of symmetrical revolving doors seals the bottom of the purification chamber.

[0010] One of the right-angled sides of the revolving door is in contact with the inner wall of the purification cabin.

[0011] The purification cabin is an integrated structure.

[0012] The purification cabin adopts a horizontal structure.

[0013] A method for purifying a seawater purification system of a pressure conversion pipeline comprises the following steps:

[0014] Step 1: Preparation;

[0015] Install the internal and external systems of the cleanroom cabin and check that they are correct; then connect the load cabin or other equipment through the control valve;

[0016] Step 2: water injection;

[0017] Open the water injection system to keep the purification chamber filled with seawater, while keeping the equalizing piston at the upper limit position, and keep a certain positive pressure in the purification chamber relative to the external seawater;

[0018] Step 3: Purification work;

[0019] After the water injection is completed, the water injection system is closed, the purification system is opened, and the chemical purifier is injected. At the same time, the agitator is turned on to allow the chemical purifier to fully contact with the seawater to purify the seawater in the purification cabin;

[0020] Step 4: sewage discharge;

[0021] After the seawater purification is completed, the motor is turned on to quickly discard the impurities that have settled to the bottom of the purification chamber into the external seawater. At this time, due to the L-shaped structure of the bottom revolving door and the positive pressure in the purification chamber, the impurities fall quickly and ensure that the seawater in the purification chamber is not contaminated again. At this time, the equalizing piston descends to keep the pressure in the purification chamber consistent with that of the external seawater.

[0022] Step 5: Pressure balancing work;

[0023] Open the control valve to equalize the pressure. At this time, the seawater in the purification cabin flows into the payload cabin. At the same time, the equalizing piston continues to descend to ensure that the pressure of the outside, purification cabin and payload cabin seawater remains consistent. The equalization operation is completed.

[0024] Step 6: Work in a loop;

[0025] Before starting the second balancing operation, first turn on the motor to reset the revolving door and the system will return to its initial state.

[0026] The beneficial effects of the present invention are as follows:

[0027] The present invention boasts a compact, rational structure and easy operation. Through the unique design of the purification chamber and in accordance with the operating method, it purifies external seawater at the front end of the payload chamber control valve, ensuring that the control valve is unaffected by seawater impurities. It also achieves efficient, reliable, and precise pressure equalization in the payload chamber. Furthermore, the system and its implementation are simple and easy to operate, mature and reliable, and can significantly improve the reliability and service life of submarine payload chambers at a relatively low cost, enhancing the efficiency of submarine biological research, thus possessing broad development prospects.

[0028] The invention is mainly used for pressure equalization of a seabed load compartment and a seawater purification device with an equalizing pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the installation of a payload cabin in the prior art.

[0030] Figure 2 It is a schematic diagram of the structure of the present invention (connected with the payload cabin).

[0031] Figure 3 It is a schematic diagram of the structure of the present invention (not connected to the payload cabin).

[0032] Figure 4 Schematic diagram of the installation of the revolving door of the present invention (state 1).

[0033] Figure 5 Schematic diagram of the installation of the revolving door of the present invention (state 2).

[0034] Among them: 101, control valve; 102, payload compartment; 103, manned cabin door; 104, manned diving equipment; 105, payload cabin door;

[0035] 1. Agitator No. 1; 2. Purification chamber; 3. Motor; 4. Purification system; 5. Water injection system; 6. Opening; 7. Balancing piston; 8. Agitator No. 2; 9. Revolving door. DETAILED DESCRIPTION

[0036] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0037] like Figure 1-Figure 5 As shown, the seawater purification system of the pressure conversion pipeline of the submarine load tank of this embodiment includes a purification tank 2, one end of the purification tank 2 is connected to the control valve 101 through a pipeline structure, and agitator No. 1 and agitator No. 2 are symmetrically arranged at both ends of the upper part of the purification tank 2. The driving parts of agitator No. 1 and agitator No. 2 are fixed to the outside of the purification tank 2. The top surface of the purification tank 2 is also provided with a water injection system 5 and an opening 6. The water injection system 5 injects water into the interior of the purification tank 2. A balancing piston 7 is installed at the opening 6 through a sealing ring. A purification system 4 is also provided inside the purification tank 2; a group of revolving doors 9 are symmetrically installed at the bottom of the purification tank 2, and a motor 3 is fixed on the outer wall of the purification tank 2. The output shaft of the motor 3 is connected to the revolving door 9, and the motor 3 controls the revolving door 9 to rotate 90°. The revolving door 9 has an L-shaped cross-section structure.

[0038] A set of symmetrical revolving doors 9 seals the bottom of the purification cabin 2 .

[0039] One of the right-angled sides of the revolving door 9 is in contact with the inner wall of the purification cabin 2 .

[0040] The purification cabin 2 is an integrated structure.

[0041] The purification cabin 2 adopts a horizontal structure.

[0042] The specific structure and functions of the seawater purification system of the pressure conversion pipeline of the submarine load compartment of the present invention are as follows:

[0043] It mainly includes a purification cabin 2, a purification system 4, a water injection system 5, a balancing piston 7, an agitator, a revolving door 9, a motor 3 and corresponding accessories.

[0044] Among them, the purification cabin 2 is the installation carrier for all subsystems.

[0045] Among them, the purification system 4, the water injection system 5, the two sets of agitators, and the motor 3 are connected to the bulkhead of the purification cabin 2 through bolts.

[0046] The equalizing piston 7 contacts the wall of the purification cabin 2 through a sealing ring.

[0047] The revolving door 9 is connected to each other through a motor shaft and a bearing embedded in the wall of the purification cabin 2 .

[0048] The revolving door 9 is an L-shaped cross-section structure, and is driven by the motor 3 to rotate back and forth 90 degrees.

[0049] In actual work process:

[0050] like Figure 2 As shown, the seawater purification system of the pressure conversion pipeline of the submarine payload cabin is installed at the water inlet position of the control valve 101 of the payload cabin 102.

[0051] When deep-sea biological conversion is required, the water injection system 5 is first turned on to keep the purification chamber 2 filled with seawater. At the same time, the balancing piston 7 is kept in the upper limit position, and a certain positive pressure is maintained in the purification chamber 2 relative to the external seawater.

[0052] After the water injection is completed, the water injection system 5 is closed, and the purification system 4 is opened to inject the chemical purifier. At the same time, the agitator is turned on to fully contact the chemical purifier with the seawater to purify the seawater in the purification cabin 2.

[0053] After the seawater is purified, motor 3 is turned on to quickly eject the purified impurities that have settled to the bottom into the external seawater. The L-shaped structure of revolving door 9 at the bottom and the positive pressure within purification chamber 2 allow the impurities to fall quickly, ensuring that the seawater in purification chamber 2 is not recontaminated. At this time, equalizing piston 7 descends, maintaining the pressure inside purification chamber 2 at the same level as the external seawater. Due to the design of revolving door 9, its rotation only pushes impurities outward, preventing seawater from entering purification chamber 2, thus ensuring that impurities do not enter the chamber.

[0054] After the above steps are completed, the control valve 101 can be opened to perform pressure equalization. At this time, the seawater in the purification cabin 2 flows into the payload cabin 102, and the equalizing piston 7 continues to descend to ensure that the seawater pressure in the outside world, the purification cabin 2 and the payload cabin 102 remains consistent, and the equalization operation is completed.

[0055] Before starting the second balancing operation, the motor 3 is first turned on to reset the revolving door 9, and the system is restored to the initial state.

[0056] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A seawater purification system for a pressure conversion pipeline of a submarine payload tank, wherein a control valve (101) is installed at one end of the payload tank (102), characterized in that: The invention comprises a purification cabin (2), one end of the purification cabin (2) is connected to a control valve (101) through a pipeline structure, a stirrer (1) and a stirrer (8) are symmetrically arranged at both ends of the upper part of the purification cabin (2), the driving parts of the stirrer (1) and the stirrer (8) are fixed on the outside of the purification cabin (2), the top surface of the purification cabin (2) is also provided with a water injection system (5) and an opening (6), the water injection system (5) injects water into the interior of the purification cabin (2), a balancing piston (7) is installed at the opening (6) through a sealing ring, and a purification system (4) is also provided inside the purification cabin (2); a group of revolving doors (9) are symmetrically installed at the bottom of the purification cabin (2), a motor (3) is fixed on the outer wall of the purification cabin (2), the output shaft of the motor (3) is connected to the revolving door (9), the motor (3) controls the revolving door (9) to rotate 90 degrees, and the revolving door (9) has an L-shaped cross-section structure.

2. The seawater purification system for the pressure conversion pipeline of the submarine load compartment according to claim 1, characterized in that: A set of symmetrical revolving doors (9) seals the bottom of the purification cabin (2).

3. The seawater purification system for the pressure conversion pipeline of the submarine payload tank according to claim 1, characterized in that: One of the right-angled sides of the revolving door (9) is in contact with the inner wall of the purification cabin (2).

4. The seawater purification system for the pressure conversion pipeline of the submarine load compartment according to claim 1, characterized in that: The purification cabin (2) is an integrated structure.

5. The seawater purification system for the pressure conversion pipeline of the submarine load compartment according to claim 1, characterized in that: The purification cabin (2) adopts a horizontal structure.

6. A method for purifying a seawater purification system for a pressure conversion pipeline of a submarine payload tank as claimed in claim 1, characterized in that: The steps are as follows: Step 1: Preparation; Complete the installation of the internal and external systems of the purification cabin (2) and check that they are correct; then connect the load cabin (102) or other equipment through the control valve (101); Step 2: water injection; The water injection system (5) is turned on to keep the purification chamber (2) filled with seawater, while the balancing piston (7) is kept at the upper limit position, and a certain positive pressure is maintained in the purification chamber (2) relative to the external seawater; Step 3: Purification work; After the water injection is completed, the water injection system (5) is closed, the purification system (4) is opened, and the chemical purifier is injected. At the same time, the agitator is turned on to allow the chemical purifier to fully contact with the seawater to purify the seawater in the purification chamber (2); Step 4: sewage discharge; After the seawater purification is completed, the motor (3) is turned on to quickly discard the impurities that have settled to the bottom after purification into the external seawater. At this time, due to the L-shaped structure of the bottom rotating door (9) and the positive pressure in the purification chamber (2), the impurities are quickly dropped and the seawater in the purification chamber (2) is ensured not to be polluted again. At this time, the equalizing piston (7) is lowered to keep the pressure in the purification chamber (2) consistent with the external seawater. Step 5: Pressure balancing work; The control valve (101) is opened to perform pressure equalization. At this time, the seawater in the purification chamber (2) flows into the load chamber (102). At the same time, the equalization piston (7) continues to descend to ensure that the pressure of the seawater outside, in the purification chamber (2) and in the load chamber (102) remains consistent. The equalization operation is completed. Step 6: Work in a loop; Before starting the second balancing operation, the motor (3) is first turned on to reset the revolving door (9), and the system is restored to its initial state.

Images