Deepwater bottom-supported storage facility
By using a two-door opening and closing structure and hydraulic system control of the bottom-mounted storage facility, the problem of material entry and exit in deep water and high-pressure environments has been solved, realizing efficient and safe material entry and exit of underwater facilities, and ensuring sealing and pressure balance.
Patent Information
- Application Number
- CN202511512004.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2025-11-21
AI Technical Summary
In deep-water, high-pressure environments, it is difficult for underwater facilities to move supplies in and out. Existing technologies are insufficient to achieve efficient and safe transport of supplies in such environments, especially since the sealing and reliability of hatches have not been effectively addressed.
The facility adopts a bottom-mounted storage structure with two opening and closing doors. The main opening and closing door is in contact with the external water body and has slow opening and slow closing functions. The secondary opening and closing door is located between the transition tank and the main tank. The interlocking state of the two doors is controlled by a hydraulic system. Combined with an electric pressure balancing valve and an electric high-pressure drain valve, pressure balance and the establishment of a dry environment are ensured.
It enables efficient and safe transport of materials in a high-pressure underwater environment, ensures the airtightness of the main hull, prevents water ingress, and improves engineering efficiency and safety.
Smart Images
Figure CN120986857A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of material access of a storage facility in a deepwater high-pressure environment, and in particular to a bottom-sitting storage facility. BACKGROUND
[0002] With the accelerated development of global marine resources and the construction of underwater infrastructure, "underwater facilities" have become a core component of the modern engineering field, and their application scenarios cover key fields such as deep-sea oil and gas exploitation, cross-sea transportation tunnels, underwater data centers, and underwater storage. However, as the operating water depth increases from shallow to deep, the problem of efficient and safe access of materials to underwater facilities in a high-pressure underwater environment has become increasingly prominent, becoming a core bottleneck restricting engineering efficiency and safety.
[0003] Underwater facilities are long-term in the underwater environment, mainly facing the problem of high water pressure. The opening and closing hatch through which the materials pass is the core component of material access. On the one hand, the seal of the dry cabin needs to be ensured during the diving process, and on the other hand, the self-opening and closing need to be completed in the underwater environment. If a failure such as seal failure or inability to open occurs, it will cause the disability of the underwater facility. Therefore, it is extremely important to design a storage facility and structure that can ensure efficient and safe access of materials in a high-pressure underwater environment. SUMMARY
[0004] The purpose of the present application is to provide a bottom-sitting storage facility that can ensure the seal of the dry cabin during the diving process, complete self-opening and closing in the underwater environment, effectively ensure the efficient and smooth access of materials to the storage facility, and meet the needs of underwater material access in a high-pressure environment.
[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: The application discloses a bottom-sitting storage facility, which comprises a main cabin body and a transition cabin; the main cabin body is a dry cabin used for storing materials; the transition cabin is used for adjusting pressure, maintaining pressure balance inside and outside the opening and closing door, ensuring smooth opening of the main opening and closing door and the secondary opening and closing door, and avoiding a large amount of water from entering the main cabin body; the transition cabin comprises a main opening and closing door, a pressure-resistant cylindrical barrel, an electric pressure balance valve and an electric high-pressure drain valve; the main opening and closing door is installed on the pressure-resistant cylindrical barrel; the electric pressure balance valve is used for adjusting the pressure of the transition cabin and maintaining water pressure balance with the external environment, so that the hatch cover can be smoothly opened; the electric high-pressure drain valve is used for draining seawater in the pressure-resistant cylindrical barrel of the transition cabin, so that a dry environment is established in the transition cabin in the subsequent process, the pressure balance between the transition cabin and the main cabin body is maintained, the secondary opening and closing door is opened, and the materials are moved into the main cabin body.
[0006] Further, the main opening and closing door and the secondary opening and closing door adopt the same structure, which comprises a conical cover plate, a sealing ring, an opening and closing mechanism, a locking mechanism and a mounting base; the opening and closing mechanism comprises a rotating shaft, a crank, an opening and closing oil cylinder, an opening proximity switch and a closing proximity switch; the locking mechanism comprises a locking tongue, a sliding sleeve, a connecting rod, a rotating disc, a locking oil cylinder, a locking proximity switch and an unlocking proximity switch; the opening and closing mechanism is located outside the cabin reserved hatch cover; a 0-90° conical contact surface is formed on the conical cover plate; the small end of the bottom of the conical contact surface is prone to stress concentration, and the large end edge of the top of the conical contact surface is prone to separation; the rigidity of the top of the conical cover plate is higher than that of the bottom; in order to avoid increasing the stress concentration degree and increase the effective contact surface, the sealing ring groove is arranged at the top 1 / 3 of the conical surface.
[0007] Further, the underwater structure opening and closing door adopts a double-door double-isolation cabin mode; one opening and closing door is in contact with the external water body and is the main opening and closing door, has a slow opening and closing function, and the other opening and closing door is located between the main opening and closing door and the material placing cabin and is the secondary opening and closing door; the space between the two opening and closing doors is the transition cabin; the material placing cabin is the main cabin body; the two doors are alternately opened and closed underwater or simultaneously closed, and are not allowed to be simultaneously opened; in control, the main opening and closing door and the secondary opening and closing door are set in interlocking state; when one of the doors is opened, the other door is in the closed state and cannot be opened.
[0008] Further, the working process of the automatic opening of the main opening and closing door and the secondary opening and closing door underwater is as follows: 1、Locking cylinder retraction, drive rotary disc counterclockwise rotation, rotary disc driven link rotation to retract the lock tongue, the rotary disc set block touch to unlock proximity switch, thus completing the hatch cover unlocking; 2、Opening and closing cylinder retraction, drive hatch cover along the rotary shaft rotation 120°, until the crank contact to open proximity switch, thus completing the hatch cover opening; hatch cover automatic closing process and opening process is contrary.
[0009] Further, the power source of the main opening and closing door and the secondary opening and closing door is provided by the hydraulic system, the hydraulic station is located in the main cabin, and the pipe is connected with the opening and closing cylinder and the locking cylinder through the connection of the hydraulic station and the partition wall joint, so that the extension and retraction of the cylinder are controlled; the hydraulic valve table is used for completing the action control of the opening and closing and locking of the hatch cover, and the hydraulic valve table comprises a hydraulic valve, a valve block, a box body and a cover plate; the pressure oil supplied by the hydraulic station controls the extension and retraction of the opening and closing cylinder through the electromagnetic reversing valve; the bidirectional hydraulic lock and the speed regulating valve are connected in series in the circuit, so as to realize the stop of the cylinder in the movement process and ensure the smooth operation of the cylinder; the two-position electromagnetic reversing valve and the throttle valve can change the slow opening of the opening and closing door into fast opening; the pressure oil supplied by the hydraulic station controls the extension and retraction of the hatch cover locking cylinder through the three-position four-way electromagnetic reversing valve.
[0010] Further, the one-way throttle valve is connected in series in the oil circuit, so as to realize the smooth extension and retraction of the cylinder in the movement process; the accumulator can keep the pressure of the locking cylinder, so as to prevent the locking cylinder from losing pressure; the pressure sensor is used for measuring the pressure values of the two cavities of the hatch cover opening and closing cylinder when the hatch cover is opened, so as to obtain the required pulling force value when the hatch cover is opened.
[0011] Further, the hydraulic system is provided with a manual mechanism, the manual mechanism adopts a manual pump and a manual reversing valve, and once the materials or personnel are stranded in the main cabin due to power failure, the manual pump can be used to supply oil to the hydraulic system, and the manual reversing valve can be used to control the locking cylinder and the opening and closing cylinder, so as to ensure that the materials or personnel are rescued.
[0012] A bottom-supported storage facility, the process of entering and leaving water is as follows: The process of materials entering the underwater facility is as follows: S1, the transition cabin pressure balance valve is opened, and the pressure inside and outside the main opening and closing door is balanced; S2, the main opening and closing door is automatically or manually unlocked; S3, the main opening and closing door is slowly opened, and the rear main opening and closing door is quickly opened; S4, the materials and personnel enter the transition cabin; S5, the main opening and closing door is closed; S6, the main opening and closing door is locked; S7, the electric high-pressure drainage pump is started, the water level of the transition cabin is lowered to a safe level, and the pressure inside and outside the secondary opening and closing door is balanced; S8, automatically or manually release the secondary opening and closing door lock; S9, the secondary opening and closing door is slowly opened, and the secondary opening and closing door is quickly opened; S10, the materials and personnel enter the main cabin body; The process of leaving the underwater structure is as follows: R1, the materials and personnel leave the main cabin and reach the transition cabin; R2, automatically or manually close the secondary opening and closing door, and the secondary closing door is automatically locked; R3, the transition cabin pressure balance valve is opened, water enters the transition cabin, and the pressure balance inside and outside the main opening and closing door is realized; R4, automatically or manually release the main opening and closing door lock; R5, the main opening and closing door is slowly opened, and the main opening and closing door is quickly opened; R6, the personnel and materials leave the cabin body; R7, automatically or manually close the main opening and closing door, and the main opening and closing door is locked; R8, the electric high-pressure drainage pump is started, and the water level in the transition cabin is lowered to a safe liquid level.
[0013] The beneficial effects of the present application are that the bottom-supported storage facility can ensure the sealing of the main cabin body during the diving process, and can independently open and close in the underwater environment, effectively ensuring that the materials are efficiently and smoothly imported and exported from the storage facility, and meeting the needs of material import and export in the underwater high-pressure environment; Specifically, the underwater structure opening and closing door of the present application adopts a double-door double-isolation chamber mode, one opening and closing door is in contact with the external water body, which is the main opening and closing door, and has a slow opening and closing function, and the other opening and closing door is located between the main cabin body and the transition cabin body, which is the secondary opening and closing door, and the space between the two opening and closing doors is the transition cabin, the material storage cabin is the main cabin, and the two doors are alternately opened or closed under water, or simultaneously closed; in control, the main opening and closing door and the secondary opening and closing door are set to be interlocked, when one of the doors is opened, the other door is closed and cannot be opened, and the electric high-pressure drainage valve is used to drain the seawater in the transition cabin pressure-resistant cylindrical barrel, so as to establish a dry environment in the transition cabin in the subsequent process, maintain the pressure balance with the main cabin, complete the opening of the secondary opening and closing door, and move the materials into the main cabin. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a whole sectional view schematic diagram of the bottom-supported storage facility of the present application; Figure 2 is a whole side view of the bottom-supported storage facility of the present application; Figure 3 is an inside view schematic diagram of the main opening and closing door and the secondary opening and closing door in the present application; Figure 4 is an outside view schematic diagram of the main opening and closing door and the secondary opening and closing door in the present application; Figure 5is the main opening and closing door and the secondary opening and closing door opening and closing door hydraulic system principle diagram in the application; The figure mark is: 01-transition cabin, 02-main cabin body, 011-main opening and closing door, 012-pressure-resistant cylindrical barrel, 013-electric pressure balance valve, 014-electric high-pressure drain valve, 021-main cabin, 022-secondary opening and closing door, 023-secondary closing door mounting seat; 111-mounting base, 112-conical cover plate, 113-locking mechanism, 114-locking oil cylinder, 115-sealing ring, 116-opening proximity switch, 117-closing proximity switch, 118-opening and closing oil cylinder, 119-rotary shaft; 1-ball valve, 2-liquid level meter, 3-liquid level relay, 4-air filter, 5-motor, 6-hydraulic pump, 7-proportional valve, 8-pressure gauge, 9-check valve, 10-oil return filter, 11-electromagnetic reversing valve, 12-hydraulic control check valve, 13-speed regulating valve, 14-electromagnetic reversing valve, 15-throttle valve, 16-accumulator, 17-pressure gauge, 18-pressure sensor, 19-hand-operated reversing valve, 20-hand-operated pump. DETAILED DESCRIPTION
[0015] DETAILED DESCRIPTION DETAILED DESCRIPTION
[0016] DETAILED DESCRIPTION Figure 1 DETAILED DESCRIPTION Figure 2The bottom-sitting storage facility provided by the embodiment mainly comprises a transition cabin 01 and a main cabin body 02; the main cabin body 02 is a dry cabin for storing materials; the transition cabin is used for adjusting pressure, maintaining pressure balance inside and outside the opening and closing door, ensuring the smooth opening of the main opening and closing door 011 and the secondary opening and closing door 022, and avoiding a large amount of water from entering the main cabin body 02; the transition cabin comprises the main opening and closing door 011, a pressure-resistant cylindrical barrel 012, an electric pressure balance valve 013 and an electric high-pressure drain valve 014; the main opening and closing door 011 is installed on the pressure-resistant cylindrical barrel 012; the electric pressure balance valve 013 is used for balancing the water pressure of the storage facility in water and the external environment, so as to complete the pressure balance inside and outside the main opening and closing door 011, thereby ensuring that the hatch cover can be smoothly opened; the electric high-pressure drain valve 014 is used for draining seawater in the pressure-resistant cylindrical barrel 012, so as to facilitate the establishment of a dry environment in the transition cabin, thereby opening the secondary opening and closing door 022 in the dry environment and moving the materials into the main cabin body 02; the main cabin body 02 comprises a main warehouse 021 and a secondary opening and closing door 022; a secondary closing door mounting seat 023 is arranged between the transition cabin 01 and the main cabin body 02; the secondary opening and closing door 022 is installed on the secondary closing door mounting seat 023 and is used for spacing the transition cabin 01 and the main warehouse 021; a hydraulic system and a gas pressure balance assembly are arranged in the main warehouse 021; the hydraulic system mainly comprises a hydraulic station, a hydraulic valve table, pipelines and joints.
[0017] As described in the specification of the present application Figure 3 As described in the specification of the present application Figure 4As shown, the main opening and closing door 011 and the secondary opening and closing door 022 adopt the same structure, including a conical cover plate 112 (hatch cover), a sealing ring 115, an opening and closing mechanism, a locking mechanism 113, and a mounting base 111. The opening and closing mechanism includes a rotating shaft 119, a crank, an opening and closing oil cylinder 118, an opening proximity switch 116, and a closing proximity switch 117. The locking mechanism 113 includes a locking tongue, a sliding sleeve, a connecting rod, a rotating disc, a locking oil cylinder 114, a locking proximity switch, and an unlocking proximity switch. The opening and closing mechanism is located outside the hatch cover, and a 0°-90° conical contact surface is formed on the conical cover plate 112. The small end of the bottom of the conical contact surface is prone to stress concentration, and the large end edge of the top of the conical contact surface is prone to separation. The rigidity of the top of the conical cover plate 112 is higher than that of the bottom. In order to avoid increasing the concentration degree of the contact stress and increase the effective contact surface, the groove of the sealing ring 115 is arranged at the top 1 / 3 of the conical surface. The working process of the opening and closing door automatically opening under water is as follows: 1) the locking oil cylinder 114 is retracted, the rotating disc is driven to rotate counterclockwise, the connecting rod is driven to rotate, the locking tongue is retracted, the blocking block arranged on the rotating disc touches the unlocking proximity switch, and the hatch cover is unlocked; 2) the opening and closing oil cylinder 118 is retracted, the hatch cover is rotated along the rotating shaft 119 by 120°, and the crank contacts the opening proximity switch 116, so that the hatch cover is opened. The working process of the hatch cover automatically closing is opposite to the opening process. The working principle of the opening and closing door (the main opening and closing door 011 and the secondary opening and closing door 022) is mainly based on the principles of mechanical transmission, electrical control, or hydraulic transmission. In the mechanical transmission system, the door is pushed to slide on the track by a manual or automatic driving device, so as to realize the opening and closing operation. The electrical control system realizes accurate control through conventional driving elements such as electromagnets or motors. The hydraulic transmission system drives the opening and closing door to open and close by using the pressure and flow of hydraulic oil, and has the advantages of smoothness, high efficiency, long service life, etc.
[0018] Further, the opening and closing door of the underwater structure adopts a double-door and double-isolation cabin mode. One opening and closing door is in contact with the external water body, which is the main opening and closing door 011 and has a slow opening and closing function. The other opening and closing door is located between the main transition cabin 01 and the main cabin body 02, which is the secondary opening and closing door 022. The space between the two opening and closing doors is a transition cabin, the material storage cabin body is a main cabin body 02, and the two doors are alternately opened or simultaneously closed under water. The two doors are not allowed to be opened at the same time. In the control, the main opening and closing door 011 and the secondary opening and closing door 022 are set to be interlocked. When one of the doors is opened, the other door is closed and cannot be opened.
[0019] The bottom-supported storage facility provided in the embodiment needs to balance and control the cabin pressure during operation, which is as follows: Main shutter 011 balance: After the balance valve is opened, the control system needs to accurately monitor the pressure difference between the inside and outside (sea water) of the transition cabin; When the pressure difference ΔP ≤ set safety threshold (such as 0.1 MPa), the system allows to execute the unlock and open instruction; The pressure balance process is usually realized by high-precision pressure sensor 18 (accuracy ±0.1% FS) and proportional regulating valve to achieve dynamic closed-loop control, avoiding the impact of pressure mutation on the structure or seal; Transition cabin drainage and secondary door balance: After the high-pressure drain valve drains to the "safe liquid level", the system needs to confirm two points: 1) The residual water volume in the transition cabin is lower than the set value (to prevent water from flowing into the main cabin body 02 when the secondary door is opened); 2) The gas pressure (usually normal pressure or slightly higher than normal pressure) in the transition cabin and the internal pressure of the main cabin body 02 reach balance (ΔP ≤ set threshold). The latter is usually realized by a micro-pressure balance valve connected to the transition cabin and the main cabin body 02.
[0020] As shown in the specification of the present application Figure 5 The power source of the main shutter 011 and the secondary shutter 022 in the present application is provided by a hydraulic system. The hydraulic station is located in the main cabin 021. By connecting the pipe to the shutter oil cylinder 118 and the locking oil cylinder 114 through the hydraulic station connected to the partition joint, the extension and retraction of the oil cylinder can be controlled. The hydraulic valve platform is used to complete the action control of the opening and closing of the hatch cover and the locking. The hydraulic valve platform includes a hydraulic valve, a valve block, a box, and a cover plate. The pressure oil supplied by the hydraulic station controls the extension and retraction of the shutter oil cylinder 118 through the electromagnetic reversing valve 14. A two-way hydraulic lock and a speed regulating valve 13 are connected in series in the circuit to stop the movement of the oil cylinder and ensure smooth operation of the oil cylinder. The two-position electromagnetic reversing valve 14 and the throttle valve 15 can change the opening of the shutter from slow to fast. The pressure oil supplied by the hydraulic station controls the extension and retraction of the hatch cover locking oil cylinder 114 through the three-position four-way electromagnetic reversing valve 1411. A one-way throttle valve 15 is connected in series in the oil circuit to ensure smooth operation of the oil cylinder during movement. The accumulator 16 can maintain the pressure of the locking oil cylinder 114 to prevent the locking oil cylinder 114 from losing pressure. The pressure sensor 18 is used to measure the pressure values of the two oil chambers of the hatch cover shutter oil cylinder 118 when the hatch cover is opened, so as to obtain the required pulling force value when the hatch cover is opened. The hydraulic system is provided with a manual mechanism. The manual mechanism uses a hand pump 20 and a manual reversing valve 19. Once a person or material is trapped in the main cabin due to power failure, the hand pump 20 can be used to supply oil to the hydraulic system, and the manual reversing valve 19 can be used to control the locking oil cylinder 114 and the shutter oil cylinder 118 to ensure that the personnel or materials can escape.
[0021] A bottom-supported storage facility, the process of entering and exiting water is as follows: The process of materials entering the underwater facility is as follows: S1, the transition cabin pressure balance valve is opened, and the inside and outside of the main shutter 011 are balanced; S2, automatically or manually release the main access door 011 lock; S3, the main access door 011 slow open, and then the main access door 011 fast open; S4, the transition cabin is accessed by personnel and materials; S5, the main access door 011 is closed; S6, the main access door 011 is locked; S7, the electric high-pressure water pump is started, the water level of the transition cabin reaches the safe level, and the internal and external pressures of the secondary access door 022 are balanced; S8, automatically or manually release the secondary access door 022 lock; S9, the secondary access door 022 slow open, and then the secondary access door 022 fast open; S10, the main cabin 02 is accessed by personnel and materials; The process of leaving the underwater structure is as follows: R1, the personnel and materials leave the main cabin and reach the transition cabin; R2, the secondary access door 022 is automatically or manually closed, and the secondary access door is automatically locked; R3, the transition cabin pressure balance valve is opened, water enters the transition cabin, and the internal and external pressures of the main access door 011 are balanced; R4, automatically or manually release the main access door 011 lock; R5, the main access door 011 slow open, and then the main access door 011 fast open; R6, the personnel and materials leave the storage facility; R7, the main access door 011 is automatically or manually closed, and the main access door 011 is locked; R8, the electric high-pressure water pump is started, and the water level of the transition cabin reaches the safe level.
[0022] In summary, the bottom-sitting type storage facility can ensure the sealing of the main cabin during the diving process, automatically open and close under the underwater environment, effectively ensure the efficient and smooth entry and exit of materials into the storage facility, meet the use needs of the entry and exit of materials in the high water pressure environment, adopt the double isolation cabin mode, one opening and closing door is in contact with the external water body and has the functions of slow opening and slow closing, the second opening and closing door is located between the transition cabin 01 and the main cabin body 02, the space between the two opening and closing doors is the transition cavity, the material placing cabin body is the main cabin body 02, the two doors are alternately opened and closed underwater, the electric high-pressure drain valve 014 can drain the seawater in the pressure-resistant cylindrical barrel 012, so as to establish a dry environment in the transition cabin, open the secondary opening and closing door 022 in the dry environment, and move the materials into the main cabin body. The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.
Claims
1. A deep water bottom-sitting storage facility, characterized in that, The application relates to a transition cabin (01) and a main cabin body (02); the main cabin body (02) is a dry cabin and is used for storing materials; the transition cabin is used for adjusting pressure, maintaining pressure balance inside and outside a door, ensuring smooth opening of a main door (011) and a secondary door (022) and avoiding a large amount of water from entering the main cabin body (02); The transition cabin comprises the main door (011), a pressure-resistant cylindrical barrel (012), an electric pressure balance valve (013) and an electric high-pressure water drain valve (014); the main door (011) is installed on the pressure-resistant cylindrical barrel (012); the electric pressure balance valve (013) is used for adjusting pressure of the transition cabin (01), maintaining water pressure balance of a storage facility with the outside environment, thereby ensuring that a hatch cover can be smoothly opened; The main cabin body (02) comprises a main cabin (021) and the secondary door (022); a secondary door mounting base (023) is arranged between the transition cabin (01) and the main cabin body (02); the secondary door (022) is installed on the secondary door mounting base (023) and is used for separating the transition cabin (01) from the main cabin (021); a hydraulic system and an air pressure balance assembly are arranged in the main cabin (021); the hydraulic system mainly comprises a hydraulic station, a hydraulic valve table, pipelines and joints; The underwater structure opening and closing door adopts a double-door and double-isolation cabin mode; one door is in contact with the outside water body and is a main door (011) with a slow opening and closing function; the other door is located between a main transition cabin (01) and a main cabin body (02) and is a secondary door (022); the space between the two doors is a transition cabin; the material placing cabin body is the main cabin body (02); the two doors are alternately opened or simultaneously closed under water and are not allowed to be opened simultaneously; in control, the main door (011) and the secondary door (022) are set to be interlocked; when one of the doors is opened, the other door is closed and is prohibited from being opened.
2. A deepwater, bottom-supported storage installation according to claim 1, wherein, The main door (011) and the secondary door (022) adopt the same structure and comprise a conical cover plate (112), a sealing ring (115), an opening and closing mechanism, a locking mechanism (113) and a mounting base (111); the opening and closing mechanism comprises a rotating shaft (119), a crank, an opening and closing oil cylinder (118), an opening proximity switch (116) and a closing proximity switch (117); the locking mechanism (113) comprises a locking tongue, a sliding sleeve, a connecting rod, a rotating disc, a locking oil cylinder (114), a locking proximity switch and an unlocking proximity switch; the opening and closing mechanism is located outside an automatic opening and closing hatch cover; a 0-90-degree conical contact surface is formed on the conical cover plate (112); stress concentration is prone to occurring at a small end of a bottom of the conical contact surface; separation is prone to occurring at a large end edge of a top of the conical contact surface; the rigidity of the top of the conical cover plate (112) is higher than that of the bottom; in order to avoid increasing the stress concentration degree and simultaneously increasing the effective contact surface, the sealing ring (115) groove is arranged at the top 1 / 3 of the conical surface.
3. A bottom-supported storage installation according to claim 2, characterized in that The working process of the main door (011) and the secondary door (022) for automatically opening under water is as follows: (1) Locking cylinder (114) retraction, drive rotary disc counterclockwise rotation, rotary disc drive link rotary so as to drive the lock bolt retraction, rotary disc set block touch to unlock proximity switch, so as to complete the hatch cover unlocking; (2) opening and closing cylinder (118) retraction, drive hatch cover along the rotary shaft (119) rotation 120°, until the crank contact to open proximity switch (116), so as to complete the hatch cover opening; the automatic closing process of hatch cover is contrary to the opening process.
4. A bottom-supported storage installation according to claim 3, characterized in that The power source of the main opening and closing door (011) and the secondary opening and closing door (022) is provided by the hydraulic system, the hydraulic station is located in the main cabin (021), and the pipe and the opening and closing cylinder (118) and the locking cylinder (114) are connected through the hydraulic station connected with the partition wall connector, so that the extension and retraction of the cylinder can be controlled; the hydraulic valve platform is used for completing the action control of the opening and closing and locking of the hatch cover, and the hydraulic valve platform comprises a hydraulic valve, a valve block, a box body and a cover plate; the pressure oil supplied by the hydraulic station controls the extension and retraction of the opening and closing cylinder (118) through the electromagnetic reversing valve (14); the bidirectional hydraulic lock and the speed regulating valve (13) are connected in series in the circuit, so as to realize the stop of the cylinder in the movement process and ensure the smooth operation of the cylinder; the two-position electromagnetic reversing valve (14) and the throttle valve (15) can change the opening of the opening and closing door from slow to fast; the pressure oil supplied by the hydraulic station controls the extension and retraction of the hatch cover locking cylinder (114) through the three-position four-way electromagnetic reversing valve (14).
5. A bottom-supported storage installation according to claim 4, characterized in that The one-way throttle valve (15) is connected in series in the oil circuit, so as to realize the smooth extension and retraction of the cylinder in the movement process; the accumulator (16) can keep the pressure of the locking cylinder (114), so as to prevent the locking cylinder (114) from losing pressure; the pressure sensor (18) is used for measuring the pressure values of the two cavities of the hatch cover opening and closing cylinder (118) when the hatch cover is opened, so as to obtain the required pulling force value when the hatch cover is opened.
6. A bottom-supported storage installation according to claim 5, characterized in that The hydraulic system is provided with a manual mechanism, the manual mechanism adopts a manual pump (20) and a manual reversing valve (19), once a person or material is trapped in the main cabin due to power failure, the manual pump (20) can be used to supply oil to the hydraulic system, and the manual reversing valve (19) can be used to control the locking cylinder (114) and the opening and closing cylinder (118), so as to ensure that the personnel or material can be rescued.
7. A bottom-supported storage installation as defined in claim 1, characterized in that The process of the storage facility entering and leaving water is as follows: The process of the material entering the underwater structure is as follows: S1, the transition cabin pressure balance valve is opened, and the inside and outside of the main opening and closing door (011) are pressure balanced; S2, the main opening and closing door (011) is automatically or manually unlocked; S3, the main opening and closing door (011) is slowly opened, and then the main opening and closing door (011) is quickly opened; S4, the material and personnel enter the transition cabin; S5, the main opening and closing door (011) is closed; S6, the main opening and closing door (011) is locked; S7, the electric high-pressure drainage pump is started, the water level of the transition cabin reaches the safe liquid level, and the inside and outside pressures of the secondary opening and closing door (022) are balanced; S8, the secondary opening and closing door (022) is automatically or manually unlocked; S9, the secondary opening and closing door (022) is slowly opened, and then the secondary opening and closing door (022) is quickly opened; S10, the material and personnel enter the main cabin body (02); The process of leaving the underwater structure is as follows: R1, the materials, personnel leave the main cabin, to the transition cabin; R2, automatic or manual closing secondary door (022), secondary door is automatically locked; R3, the transition cabin pressure balance valve is opened, water enters the transition cabin, and the inside and outside of the main door (011) is balanced; R4, automatic or manual release of the main door (011) lock; R5, the main door (011) is slowly opened, and the rear main door (011) is quickly opened; R6, personnel and materials leave the storage facility; R7, automatic or manual closing of the main door (011), the main door (011) is locked; R8, the electric high-pressure drainage pump is started, and the water level of the transition cabin reaches a safe level.