Sea depth pressure self-adaptive anti-pollution flow control valve
The design of the sea depth pressure adaptive anti-pollution flow control valve solves the problem of unstable flow of deep-sea valves under variable sea depth conditions, achieves stable flow control and anti-pollution capabilities, and is suitable for the buoyancy adjustment system of deep-sea submersibles.
Patent Information
- Application Number
- CN202511131759.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-13
- Publication Date
- 2025-10-17
AI Technical Summary
Existing deep-sea valves are difficult to achieve precise regulation and stable control of flow under variable sea depth conditions, resulting in serious energy consumption and are susceptible to contaminant jamming and wear in harsh and highly polluted environments.
A deep sea pressure adaptive anti-pollution flow control valve was designed. It adopts a flat valve core and ceramic materials. Through adaptive adjustment of the flat valve port and spring adjustment, it uses the marine environmental pressure for gravity injection. Combined with the sealing ring isolation structure, it achieves stable flow control and anti-pollution capability.
It maintains stable flow in deep-sea environments, reduces energy consumption, improves the anti-pollution ability and service life of the valve port, has a simple structure and is easy to maintain, and is suitable for the buoyancy adjustment system of deep-sea submersibles.
Smart Images
Figure CN120799159A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of flow control valves, and more particularly relates to a sea-depth pressure self-adaptive anti-pollution flow control valve. BACKGROUND
[0002] More than 70% of the earth's surface is covered by oceans, and international open seas account for about 49% of the total area of the earth. Human survival and development increasingly rely on the development of vast oceans, and thus various marine countries compete to explore and develop the oceans. Since the deep sea is rich in mineral resources, the development of the oceans has begun to move from shallow to deep sea, and large-depth manned or unmanned submersibles are important carriers for the development of the oceans to move to the deep sea.
[0003] The buoyancy adjustment system is an important part of the submersible and can adjust the buoyancy of the submersible within a certain range, and has a good compensation effect on the overall deformation of the submersible structure, the floating of seawater density, and the change of weight. At present, the buoyancy adjustment system of large-depth submersibles in the world widely uses seawater driving technology, that is, high-pressure seawater pumps are used to discharge water in the pressure-resistant water tank of the submersible to the sea, or seawater pumps are used to inject seawater into the ballast water tank. However, the medium pressure in the ballast water tank is much lower than the environmental pressure of the sea, and thus a serious consumption of energy will be caused during the discharge process.
[0004] If seawater is directly injected into the ballast water tank using the environmental pressure during the water injection process, the limited energy on the submersible will be saved to some extent, thereby increasing the operation time of the submersible underwater. Since the environmental pressure is proportional to the depth of the sea, the flow of seawater through the fixed valve port also increases with the increase of the depth of the sea, and the flow at shallow depth and large depth differs by thousands of times, making it difficult to accurately adjust the buoyancy of the submersible under variable sea depth conditions. SUMMARY
[0005] In view of the above defects or improvement needs of the prior art, the present application provides a sea-depth pressure self-adaptive anti-pollution flow control valve, which aims to solve the problem that the existing deep sea valve is difficult to maintain stable flow.
[0006] To achieve the above object, according to one aspect of the present application, a sea depth pressure self-adaptive anti-pollution flow control valve is provided, which comprises an upper valve body, a lower valve body, a flat valve core and a flat valve seat, the lower valve body is provided with an outlet and a first stepped groove communicated with each other at two opposite ends thereof, the flat valve seat is arranged in the first stepped groove and is provided with a first recess communicated with the outlet at one end thereof, one end of the upper valve body extends into the first stepped groove and is provided with a second recess opposite to the first recess, the upper valve body is further provided with an inlet communicated with the second recess, the flat valve core comprises an inner ring and an outer ring connected with each other, a flow channel is arranged in a region between the inner ring and the outer ring, the flow channel is communicated with the second recess and the outlet, a flat valve port is formed between the inner ring and the bottom surface of the first recess, and the outer ring is clamped between the flat valve seat and the upper valve body.
[0007] When the flat valve core is subjected to the action of sea water pressure, the flat valve core changes the opening degree of the flat valve port by elastic deformation.
[0008] Further, the bottom surface of the second recess is provided with a third recess, the control valve comprises a spring seat and a spring, the spring seat is arranged in the third recess, and the spring is connected with the flat valve core and the spring seat at two opposite ends thereof.
[0009] Further, the upper valve body is provided with a threaded hole at one end thereof away from the lower valve body, the control valve comprises an adjusting screw, the adjusting screw is connected with the upper valve body through the threaded hole, and one end of the adjusting screw in the upper valve body is connected with the spring seat.
[0010] Further, the spring is a compression spring or a tensile spring.
[0011] Further, the control valve changes the compression amount of the spring by adjusting the adjusting screw.
[0012] Further, sealing rings are arranged between the lower valve body and the flat valve seat, between the lower valve body and the upper valve body, and between the upper valve body and the spring seat.
[0013] Further, the flat valve seat and the flat valve core are both sprayed with ceramic.
[0014] Further, the upper valve body and the lower valve body are threadedly connected.
[0015] Further, the bottom surface of the first recess is provided with a through hole communicated with the outlet, and the center axis of the through hole, the center axis of the outlet and the center axis of the inner ring are coincident.
[0016] The application also provides a buoyancy adjusting system of a full-ocean-depth submersible, which comprises a sea-depth pressure self-adaptive anti-pollution flow control valve and a ballast water tank, and the control valve is connected to the ballast water tank and is used for self-flow filling of the ballast water tank by using the sea environment pressure.
[0017] Overall, compared with the prior art, the sea-depth pressure self-adaptive anti-pollution flow control valve provided by the application has the following beneficial effects:
[0018] 1. The flat valve core has a certain rigidity, and when external high-pressure seawater enters the inlet of the flow control valve, throttling effect is generated at the position of the flat valve port. The flat valve core is elastically deformed under the action of hydraulic pressure, and the opening degree of the flat valve port changes: when the sea depth increases, the pressure difference of the valve port rises, so that the hydraulic pressure acting on the flat valve core and the deformation amount generated by the flat valve core both increase, and the opening degree of the flat valve port decreases, so that the flow through the flat valve port is maintained in a dynamic stable state.
[0019] 2. In the application, the rigidity and the size of the opening degree of the flat valve core can be changed by replacing the flat valve core with different sizes and materials, so that the deformation state of the flat valve core under the action of the environment high pressure changes, and the flow through the flat valve port is adjusted. In addition, the rigidity of the spring is much smaller than the rigidity of the flat valve core, so that the flow through the flat valve port can be slightly adjusted by replacing the spring.
[0020] 3. Traditionally, the flow control valve adopts an arc-shaped throttling port as a valve port structure, and under the action of a high pressure difference, the opening degree of the valve port is extremely small, and there is a state of “non-opening or non-closing”, which may cause vibration of the valve core and is not conducive to stable work of the flow valve. The flow control valve in the application adopts a flat throttling mode, for the same throttling intensity, the opening degree of the valve port can be increased by increasing the flat throttling width, which effectively prevents the jamming of pollutants such as large-particle-size suspended sand on the valve port, and thus has good adaptability to the deep-sea harsh and highly-polluted environment.
[0021] 4. The flat valve seat and the flat valve core in the application adopt a ceramic-ceramic matching form, so that the anti-seawater erosion ability and the anti-pollution wear ability of the valve port are enhanced, the wear and erosion of the valve port can be effectively reduced, and the service life of the flow control valve is improved. In addition, for the sea area with large-particle-size suspended sand or serious pollution, the opening degree of the valve port can be increased by increasing the throttling length of the flat valve, so as to facilitate the flow of seawater medium, thereby preventing the jamming or wear of large-particle-size pollutants on the valve port.
[0022] 5. The sea depth pressure self-adaptive anti-pollution flow control valve can be used in a buoyancy adjusting system of a deep submersible vehicle, directly uses the sea environment pressure to self-flow water filling for a ballast water tank, thereby saving limited energy, and can ensure that the buoyancy adjusting system is stable and controllable in water filling flow when self-flow water filling.
[0023] 6. The flow control valve has the advantages of simple structure, good interchangeability, strong anti-pollution ability and easy maintenance and replacement.
[0024] 7. The lower valve body and the flat valve seat are provided with a sealing ring to isolate the inlet and the outlet of the flow control valve, the lower valve body and the upper valve body are provided with a sealing ring to isolate the inlet and the outside environment of the flow control valve, and the upper valve body and the spring seat are provided with a sealing ring to isolate the inlet and the outside environment of the flow control valve. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 is a sectional view of the sea depth pressure self-adaptive anti-pollution flow control valve provided by the application;
[0026] Figure 2 is Figure 1 a schematic view of the flat valve core of the sea depth pressure self-adaptive anti-pollution flow control valve in
[0027] Figure 3 is Figure 1 a local enlarged view of the flat valve port of the sea depth pressure self-adaptive anti-pollution flow control valve in
[0028] In all the drawings, the same reference signs are used to represent the same elements or structures, in which: 1 is a lower valve body, 2 is a flat valve seat, 3 is a flat valve core, 4 is an upper valve body, 5 is a spring, 6 is a spring seat, and 7 is an adjusting screw. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application. In addition, the technical features involved in each embodiment of the application described below can be combined with each other as long as there is no conflict.
[0030] Please refer to Figure 1 , Figure 2 and Figure 3The application provides a deep-sea pressure self-adaptive anti-pollution flow control valve, which can keep the flow through the valve port stable by self-adaptive adjustment of the valve port opening degree, can adapt to deep-sea harsh working conditions, and has the characteristics of high stability, long service life, easy maintenance and replacement, etc.
[0031] The control valve comprises an upper valve body 4, a lower valve body 1, a flat plate valve seat 2, a flat plate valve core 3, a spring 5, a spring seat 6 and an adjusting screw 7, one end of the upper valve body 4 is connected to one end of the lower valve body 1. The flat plate valve seat 2 is arranged in the lower valve body 1, and the flat plate valve core 3 is arranged in the lower valve body 1 and located between the upper valve body 4 and the flat plate valve seat 2. The spring seat 6 is arranged in the upper valve body 4, one end of the adjusting screw 7 extends into the upper valve body 4 and is connected to the spring seat 6, and the adjusting screw 7 and the upper valve body 4 are in threaded connection. The opposite ends of the spring 5 are connected to the spring seat 6 and the flat plate valve core 3, respectively.
[0032] One end of the lower valve body 1 is provided with an outlet, and the other end is provided with a first stepped groove, and the outlet is in communication with the first stepped groove. The flat plate valve seat 2 is arranged on the bottom surface of the first stepped groove, one end of the flat plate valve seat 2 is provided with a first recess, and the other end is provided with a through hole, and the through hole is in communication with the first recess and the outlet.
[0033] The flat plate valve seat 2 and the flat plate valve core 3 are accommodated in the lower valve body 1, and the flat plate valve seat 2 and the flat plate valve core 3 are axially positioned by the upper valve body 4, and the flat plate valve core 3 is clamped between the flat plate valve seat 2 and the upper valve body 4.
[0034] The flat plate valve core 3 is circular and comprises an inner ring and an outer ring connected to each other, the inner ring is located in the outer ring, a plurality of liquid flow channels are formed between the inner ring and the outer ring, and the liquid flow channels are in communication with the first recess. The liquid flow channels are used for the working medium to pass through the liquid flow channels and then enter the outlet to leave. The inner ring and the bottom surface of the first recess form a flat plate valve port.
[0035] The flat plate valve core 3 has a certain rigidity, and is elastically deformed under the action of the pressure of seawater or the force of the spring 5, so that the inner ring is displaced and the opening degree of the flat plate valve port is changed.
[0036] The lower valve body 1 is threadedly connected with the upper valve body 4, the upper valve body 4 is stepped, one end of which is provided with a threaded hole, and the other end is provided with a second groove, the bottom surface of the second groove is provided with a third groove, and the threaded hole penetrates the third groove. The second groove is in communication with the liquid flow channel. The upper valve body 4 is provided with an inlet on one side, which is in communication with the third groove. The adjusting screw 7 is threadedly connected with the upper valve body 4 through the threaded hole.
[0037] In the embodiment, the center axis of the threaded hole, the center axis of the second groove and the center axis of the third groove coincide; the center axis of the through hole coincides with the center axis of the first groove; the spring 5 is a compression spring 5 or a tension spring 5; the flat plate valve seat 2 and the flat plate valve core 3 are sprayed with ceramic.
[0038] The control valve can change the compression amount of the spring 5 by adjusting the adjusting screw 7. The lower valve body 1 and the flat plate valve seat 2 are provided with a sealing ring to isolate the inlet and outlet of the flow control valve, the lower valve body 1 and the upper valve body 4 are provided with a sealing ring to isolate the inlet and the external environment of the flow control valve, and the upper valve body 4 and the spring seat 6 are provided with a sealing ring to isolate the inlet and the external environment of the flow control valve.
[0039] After the working medium enters the inlet, it can enter the flat plate valve port through the liquid flow channel and finally exit from the outlet of the flow control valve. When the ocean depth increases, the valve port pressure difference rises, so that the hydraulic pressure acting on the flat plate valve core 3 and the deformation amount generated both increase, the opening degree of the flat plate valve port decreases, thereby maintaining the flow through the flat plate valve port in a stable state. By replacing the flat plate valve core 3 with different sizes and materials, the rigidity and the opening degree of the valve port can be changed, so that the deformation state of the flat plate valve core 3 under the action of high pressure environment changes, and the flow through the flat plate valve port is adjusted; in addition, the rigidity of the spring 5 is much smaller than that of the flat plate valve core 3, so that the spring 5 can be replaced to realize the micro-adjustment of the flow through the flat plate valve port.
[0040] The flow control valve of the application adopts flat plate throttling mode, for the same throttling intensity, the valve opening can be increased by increasing the flat plate throttling width, effectively preventing the jamming of pollutants such as large particle size suspended sand to the valve port. In addition, the flat plate valve seat 2 and the flat plate valve core 3 adopt the cooperation form of ceramic and ceramic, so that the anti-seawater erosion ability and anti-pollution wear ability of the valve port are enhanced, thus the flow control valve has good adaptability to deep sea harsh high pollution environment, can effectively reduce wear and valve port erosion, and improve the service life of the flow control valve.
[0041] The control valve provided by the application can be used in a deep-sea submersible buoyancy adjustment system, directly utilizes the ocean environment pressure to self-flow water injection to a ballast water tank, thereby saving limited energy, and can ensure that the buoyancy adjustment system is stable and controllable when self-flow water injection is performed.
[0042] The application further provides a full-ocean-depth submersible buoyancy adjustment system, which comprises a full-ocean-depth pressure self-adaptive anti-pollution flow control valve and a ballast water tank, and the control valve is connected to the ballast water tank and is used for self-flow water injection to the ballast water tank by utilizing the ocean environment pressure.
[0043] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.
Claims
1. A deep sea pressure adaptive anti-pollution flow control valve, characterized by: The control valve includes an upper valve body, a lower valve body, a flat valve core and a flat valve seat, and the two opposite ends of the lower valve body are respectively provided with a connected outlet and a first stepped groove; the flat valve seat is arranged in the first stepped groove, and one end of the flat valve seat is provided with a first groove connected to the outlet; one end of the upper valve body extends into the first stepped groove and is provided with a second groove opposite to the first groove, and the upper valve body is also provided with an inlet connected to the second groove; the flat valve core includes an inner ring and an outer ring connected, and a liquid flow channel is provided in the area between the inner ring and the outer ring; the liquid flow channel is connected to the second groove and the outlet; a flat valve port is formed between the inner ring and the bottom surface of the first groove; the outer ring is clamped between the flat valve seat and the upper valve body; When the flat valve core is subjected to the pressure of seawater, it changes the opening of the flat valve port by undergoing elastic deformation.
2. The deep sea pressure adaptive anti-pollution flow control valve according to claim 1, characterized in that: A third groove is formed on the bottom surface of the second groove; the control valve includes a spring seat and a spring, the spring seat is arranged in the third groove, and the opposite ends of the spring are respectively connected to the flat valve core and the spring seat.
3. The sea depth pressure adaptive anti-pollution flow control valve according to claim 2, characterized in that: A threaded hole is formed at one end of the upper valve body away from the lower valve body; the control valve includes an adjusting screw, which is connected to the upper valve body through the threaded hole, and one end of the adjusting screw located in the upper valve body is connected to the spring seat.
4. The sea depth pressure adaptive anti-pollution flow control valve according to claim 2, characterized in that: The spring is a compression spring or a tension spring.
5. The sea depth pressure adaptive anti-pollution flow control valve according to claim 2, characterized in that: The control valve changes the compression amount of the spring by adjusting the adjusting screw.
6. The sea depth pressure adaptive anti-pollution flow control valve according to claim 2, characterized in that: A sealing ring is provided between the lower valve body and the flat valve seat; a sealing ring is provided between the lower valve body and the upper valve body; and a sealing ring is provided between the upper valve body and the spring seat.
7. The sea depth pressure adaptive anti-pollution flow control valve according to any one of claims 1 to 6, characterized in that: The flat valve seat and the flat valve core are both sprayed with ceramics.
8. The sea depth pressure adaptive anti-pollution flow control valve according to any one of claims 1 to 6, characterized in that: A threaded connection is formed between the upper valve body and the lower valve body.
9. The sea depth pressure adaptive anti-pollution flow control valve according to any one of claims 1 to 6, characterized in that: A through hole is formed on the bottom surface of the first groove, and the through hole is connected to the outlet; the central axis of the through hole, the central axis of the outlet and the central axis of the inner ring coincide with each other.