CN108974294B - Buoyancy adjusting system based on two-way sea water pump - Google Patents
Buoyancy adjusting system based on two-way sea water pump Download PDFInfo
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- CN108974294B CN108974294B CN201810849541.XA CN201810849541A CN108974294B CN 108974294 B CN108974294 B CN 108974294B CN 201810849541 A CN201810849541 A CN 201810849541A CN 108974294 B CN108974294 B CN 108974294B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
- B63G8/22—Adjustment of buoyancy by water ballasting; Emptying equipment for ballast tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
- B63G8/26—Trimming equipment
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Abstract
The invention belongs to the technical field related to a submersible, and discloses a buoyancy regulating system based on a bidirectional seawater pump, which comprises an adjustable ballast water tank, two valve groups and the bidirectional seawater pump, wherein the two valve groups are a first valve group and a second valve group respectively, the bidirectional seawater pump is provided with an I port and an II port, the first valve group is connected with the adjustable ballast water tank and the I port, and the second valve group is connected with the II port and communicated with seawater; the buoyancy regulating system self-adaptively regulates the volume of seawater in the adjustable ballast water tank through the forward and backward rotation of the bidirectional seawater pump, thereby realizing buoyancy regulation; the valve group comprises a check valve and a balance valve which are connected in parallel, or is a check balance valve, the check balance valve comprises a valve body, a check valve component and a balance valve component, the check valve component and the balance valve component are respectively embedded at two opposite ends of the valve body, and the check valve component and the balance valve component are mutually valve seats. The invention simplifies the structure, reduces the volume, and further reduces the complexity and the cost of the buoyancy regulating system of the submersible.
Description
Technical Field
The invention belongs to the technical field of diving equipment, and particularly relates to a buoyancy adjusting system based on a bidirectional sea water pump.
Background
The submersible is a submersible device with underwater observation and underwater operation, is mainly used for performing underwater investigation, submarine exploration, submarine development, salvage, life-saving and other tasks, and can be used as an underwater operation base for the activities of divers.
The submersible needs to adjust its buoyancy in a certain depth range in the ocean to hover at different depths to complete the ocean exploration tasks. In addition to actively controlling the buoyancy, the weight of the submersible is reduced after sampling in the ocean due to the change of the weight of the submersible or the release of other equipment, the buoyancy is changed due to the change of the density of the seawater caused by the change of the physicochemical property of the seawater, and the elastic deformation of the pressure-resistant structure of the submersible also causes the buoyancy to change along with the change of the deep submergence depth of the submersible, so that the submergence depth of the submersible needs to be adjusted by a buoyancy adjusting system.
The existing buoyancy regulating system regulates the injection and discharge of seawater by using the stop valve group, and external control water or an electromagnet is needed to control the switch of the valve group, so that the volume, the cost and the weight of the buoyancy regulating system are increased. Accordingly, there is a need in the art to develop a buoyancy adjustment system that is relatively small in size.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a buoyancy regulating system based on a bidirectional seawater pump, which is based on the characteristics of the conventional submersible buoyancy regulating system, and researches and designs the buoyancy regulating system based on the bidirectional seawater pump with smaller volume. The buoyancy regulating system self-adaptively regulates the volume of seawater in the adjustable ballast water tank through the forward and backward rotation of the bidirectional seawater pump, thereby realizing buoyancy regulation. In addition, the valve group of the buoyancy regulating system comprises a one-way balance valve, the one-way balance valve is used for carrying out integrated design on the balance valve and the one-way valve, a valve core of the one-way valve and a valve core of the balance valve are respectively embedded in the valve body, and the valve core of the one-way valve and the valve core of the balance valve are mutually valve seats, so that the volume is reduced, the structure is simplified, and the complexity and the cost of the buoyancy regulating system of the submersible are further reduced.
In order to achieve the above purpose, the invention provides a buoyancy regulating system based on a bidirectional seawater pump, the buoyancy regulating system comprises an adjustable ballast water tank, two valve groups and a bidirectional seawater pump, wherein the two valve groups are a first valve group and a second valve group respectively, the bidirectional seawater pump is provided with an I port and a II port, the first valve group is connected with the adjustable ballast water tank and the I port, and the second valve group is connected with the II port and is communicated with seawater; the buoyancy regulating system is used for adaptively regulating the volume of seawater in the adjustable ballast water tank through the forward and backward rotation of the bidirectional seawater pump, so that buoyancy regulation is realized;
the first valve group comprises a first one-way valve and a first balance valve, the first one-way valve is connected with the first balance valve in parallel, the second valve group comprises a second one-way valve and a second balance valve, and the second one-way valve is connected with the second balance valve in parallel; or, the first valve group and the second valve group are all one-way balance valves, the one-way balance valves comprise valve bodies, one-way valve assemblies and balance valve assemblies, the one-way valve assemblies and the balance valve assemblies are respectively embedded at two opposite ends of the valve bodies, the balance valve assemblies comprise balance valve spools, the one-way valve assemblies comprise one-way valve spools, the one-way valve spools are detachably connected with the balance valve spools, and the one-way valve spools or the balance valve spools are enabled to be separated from or propped against the balance valve spools through movement along the length direction of the valve bodies, so that the one-way balance valves are opened or closed.
Further, the I port is connected with the inlet end of the first balance valve and the outlet end of the first one-way valve, and the outlet end of the first balance valve and the inlet end of the first one-way valve are connected with the adjustable ballast water tank; the II port is connected to the outlet end of the second one-way valve and the inlet end of the second balance valve, and the outlet end of the second balance valve and the inlet end of the second one-way valve are communicated with sea water through a filter.
Further, the buoyancy regulating system further comprises a first safety valve and a second safety valve, one end of the first safety valve is connected to a pipeline between the second valve group and the bidirectional seawater pump, and the other end of the first safety valve is connected to a pipeline between the second valve group and the filter; one end of the second safety valve is connected to a pipeline between the second valve group and the filter, and the other end of the second safety valve is connected to a pipeline between the first valve group and the bidirectional seawater pump.
Further, the valve body is provided with a valve body through-flow port and a valve body cavity communicated with the valve body through-flow port, and the valve body through-flow port penetrates through one side of the valve body; the balance valve assembly comprises a balance valve plug, a balance valve spring and a balance valve core, wherein the balance valve spring and the balance valve core are accommodated in the valve body, a balance valve balance cavity is formed among the balance valve plug, the balance valve core and the valve body, one end of the balance valve core is accommodated in the balance valve balance cavity, and the other end of the balance valve core extends into the valve body cavity; the balance valve plug is connected to one end of the valve body; one end of the balance valve spring is connected with the balance valve core, and the other end of the balance valve spring is connected with the balance valve plug; the balancing valve spring is located within the balancing valve balancing chamber, having a pre-compression amount.
Further, the check valve group comprises a check valve plug, a check valve core and a check valve spring which are accommodated in the valve body, and a check valve cavity is formed among the check valve plug, the check valve core and the valve body; the one-way valve plug is connected to the other end of the valve body and is provided with a one-way valve through-flow port which is communicated with the one-way valve chamber; two ends of the one-way valve spring are respectively connected with the one-way valve plug and the one-way valve core; the check valve spring has a pre-compressed amount; the one-way valve core or the balance valve core is moved to enable the valve body through-flow port to be communicated with or isolated from the one-way valve through-flow port, and then the one-way balance valve is opened or closed.
Further, the valve body is used for bearing the one-way valve assembly and the balance valve assembly, one end of the valve body is provided with a stepped groove, and the other end of the valve body is provided with a groove; the bottom surface of the step groove is provided with a through hole, and the through hole and the step groove are commonly used for accommodating the balance valve assembly.
Further, an accommodating groove is formed in the bottom of the groove, and the accommodating groove and the groove are used for accommodating the check valve core and part of the check valve plug together; the accommodating groove is communicated with the valve body cavity, the valve body cavity is communicated with the through hole, and one end of the balance valve core penetrates through the through hole and then stretches into the valve body cavity.
Further, the valve body is further provided with a balance port and a damping hole, and the damping hole is respectively communicated with the stepped groove and the balance port.
Further, the one-way valve assembly further comprises an inner nest accommodated in the accommodating groove, a stepped hole is formed in the inner nest, the stepped hole is communicated with the valve body cavity, and the one-way valve core is accommodated in the stepped hole; a preset gap is arranged between the step surface of the step hole and the surface of the one-way valve core, which is far away from the one-way valve plug.
Further, a predetermined gap is provided between one end of the balance valve spool accommodated in the stepped groove and the bottom surface of the stepped groove.
In general, compared with the prior art, the buoyancy regulating system based on the bidirectional seawater pump mainly has the following beneficial effects:
1. the buoyancy regulating system self-adaptively regulates the volume of seawater in the adjustable ballast water tank through the forward and reverse rotation of the bidirectional seawater pump, so that the weight of the carrying platform is regulated, the buoyancy of the carrying platform is regulated, the external control is eliminated, the defects of complex structure, large size and high leakage probability of the valve group of the traditional buoyancy regulating system are effectively overcome, and meanwhile, the seawater is injected into or discharged out of the adjustable ballast water tank through the forward and reverse rotation of the bidirectional seawater pump, so that the structure and the system composition are greatly simplified, the size is reduced, and the efficiency is improved.
2. The one-way valve core is detachably connected with the balance valve core, the one-way valve core or the balance valve core is separated from or propped against the balance valve core through movement along the length direction of the valve body, so that the valve body through-flow port is communicated with or isolated from the one-way valve through-flow port, then the one-way balance valve is opened or closed, the one-way valve core and the balance valve core are mutually valve seats, the structure is greatly simplified, the integration level is improved, and the volume is reduced.
3. The one-way balance valve comprises a valve body, a one-way valve assembly and a balance valve assembly, wherein the one-way valve assembly and the balance valve assembly are respectively embedded at two opposite ends of the valve body, so that the one-way valve and the balance valve are integrated together, the structure is simple, the flowing channel of seawater in the valve is short, the interface is reduced, and the seawater leakage probability is reduced.
4. The seawater directly pushes the valve core of the one-way valve to enter the suction inlet of the seawater pump through the through hole of the valve body, so that the flow area is large, and the pressure loss of the seawater pump is reduced.
5. A predetermined gap is arranged between the stepped surface of the stepped hole and the surface of the one-way valve core, which is far away from the one-way valve plug, and a predetermined gap is arranged between one end of the balance valve core, which is contained in the stepped groove, and the bottom surface of the stepped groove, so that reliable sealing between the balance valve core and the one-way valve core is ensured.
6. The valve body is further provided with a balance port and a damping hole, the damping hole is respectively communicated with the stepped groove and the balance port, and therefore the balance cavity of the balance valve is communicated with the balance port through the damping hole and then is communicated with the outside sea water, so that the balance cavity of the balance valve is stable in water inflow and water drainage, the one-way balance valve is stable in opening and closing, and vibration of the one-way balance valve is reduced.
Drawings
Fig. 1 is a schematic diagram of a buoyancy adjusting system based on a bi-directional sea water pump according to a first embodiment of the present invention.
Fig. 2 is a cross-sectional view of a one-way balancing valve of a buoyancy adjusting system based on a bi-directional sea water pump according to a second embodiment of the present invention.
The same reference numbers are used throughout the drawings to reference like elements or structures, wherein: 1-balance valve plug, 2-balance valve spring, 3-balance valve spool, 4-balance valve spool O-shaped ring, 5-valve body through-flow port, 6-inner nest, 7-one-way valve spool, 8-one-way valve spring, 9-one-way valve plug, 10-one-way valve through-flow port, 11-balance valve balance cavity, 12-balance valve plug O-shaped ring, 13-valve body, 14-balance port, 15-damping hole, 16-valve body cavity, 17-one-way valve spool O-shaped ring, 18-one-way valve cavity, 19-inner nest O-shaped ring, 20-one-way valve plug O-shaped ring, 21-first balance valve, 22-first one-way valve, 23-two-way sea water pump, 24-motor, 25-second balance valve, 26-second one-way valve, 27-filter, 28-first safety valve, 29-second safety valve, 30-adjustable ballast water tank.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1, the buoyancy adjusting system based on a bi-directional seawater pump provided by the invention comprises an adjustable ballast water tank 30, two valve blocks, a bi-directional seawater pump 23, a motor 24, a filter 27, a first safety valve 28 and a second safety valve 29, wherein the motor 24 is connected with the bi-directional seawater pump 23, the two valve blocks are respectively called a first valve block and a second valve block, the first valve block is connected with the adjustable ballast water tank 30 and the bi-directional seawater pump 23, the second valve block is connected with the bi-directional seawater pump 23 and the filter 27, and the filter 27 is used for being communicated with seawater. One end of the first safety valve 28 is connected to a pipeline between the second valve group and the bi-directional sea water pump 23, and the other end is connected to a pipeline between the second valve group and the filter 27. One end of the second safety valve 29 is connected to a pipeline between the second valve block and the filter 27, and the other end is connected to a pipeline between the first valve block and the bi-directional sea water pump 23.
The first valve group comprises a first balance valve 21 and a first one-way valve 22, and the first balance valve 21 is connected with the first one-way valve 22 in parallel. The second valve group comprises a second balance valve 25 and a second one-way valve 26, and the second balance valve 25 is connected with the second one-way valve 26 in parallel.
Seawater is injected into or discharged from the adjustable ballast tank 30 by the forward and reverse rotation of the bi-directional seawater pump 23 to change the weight of the carrying platform, thereby changing the buoyancy of the carrying platform. The bi-directional sea water pump 23 is formed with an I port and an II port, the I port is connected to the inlet end of the first balance valve 21 and the outlet end of the first check valve 22, and the outlet end of the first balance valve 21 and the inlet end of the first check valve 22 are connected to the adjustable ballast water tank 30. The port II is connected to the outlet end of the second check valve 26 and the inlet end of the second balance valve 25, and the outlet end of the second balance valve 25 and the inlet end of the second check valve 26 are connected to the filter 27.
The motor 24 is used for driving the bi-directional sea water pump 23 to fill or drain the adjustable ballast water tank 30, when the adjustable ballast water tank 30 needs to be filled with sea water, the bi-directional sea water pump 23 is operated in a forward direction, the sea water pushes the second one-way valve 26 through the filter 27 and opens the first balance valve 21 under the action of the bi-directional sea water pump 23, and finally the adjustable ballast water tank 30 is filled, and at this time, the second safety valve 29 ensures the normal operation of the bi-directional sea water pump 23. When the seawater is required to be discharged to the adjustable ballast water tank 30, the bi-directional seawater pump 23 is operated reversely, the seawater in the adjustable ballast water tank 30 pushes the first check valve 22 open, the seawater opens the second balance valve 25 under the action of the bi-directional seawater pump 23, and finally enters the ocean environment through the filter 27, and the first safety valve 28 ensures the normal operation of the bi-directional seawater pump 23.
In other embodiments, in order to simplify the buoyancy adjustment system, when the aqueous medium is cleaner and cleaner, the balance valve performance is better, and the first safety valve 28 and the second safety valve 29 for protecting the motor can be removed on the premise that the motor 24 is not easy to have a harmful effect such as locked rotation, so as to obtain a simplified buoyancy adjustment system.
Referring to fig. 2, a buoyancy adjusting system based on a bi-directional seawater pump according to a second embodiment of the present invention is substantially the same as the buoyancy adjusting system based on a bi-directional seawater pump according to the first embodiment of the present invention, except that: the first valve group and the second valve group have the same structure, and are both one-way balance valves. The one-way balance valve comprises a valve body 13, a balance valve assembly and a one-way valve assembly, wherein the balance valve assembly and the one-way valve assembly are respectively embedded at two opposite ends of the valve body 13, and the balance valve assembly is detachably connected with the one-way valve assembly.
The valve body 13 is used for bearing the one-way valve assembly and the balance valve assembly, one end of the valve body is provided with a stepped groove, and the other end of the valve body is provided with a groove. And the bottom surface of the stepped groove is provided with a through hole, and the central axis of the through hole coincides with the central axis of the groove. The bottom of the groove is provided with a containing groove, and the containing groove and the groove are used for containing part of the one-way valve assembly. The bottom of the accommodating groove is provided with a valve body cavity 16, and the valve body cavity 16 is communicated with the through hole. The stepped slot, the through bore, and the valve body chamber 16 cooperate to receive a portion of the balanced valve assembly.
In this embodiment, the valve body chamber 16 is located in the middle of the valve body 13. The valve body 13 is also provided with a valve body through-flow port 5, and the valve body through-flow port 5 is communicated with the valve body cavity 16. In this embodiment, the central axis of the valve body through-flow port 5 is perpendicular to the length direction of the valve body 13; the valve body through-flow port 5 is used for communicating with a ballast water tank or a seawater environment. The valve body 13 is also provided with a balance port 14, and the central axis of the balance port 14 is perpendicular to the length direction of the valve body 13. The valve body 13 is also provided with a damping hole 15, and the damping hole 15 is respectively communicated with the stepped groove and the balance port 14. In this embodiment, the damping hole 15 is used to provide a certain damping effect, so that the balance valve assembly can stably feed water and drain water, and the balance valve assembly can be opened and closed stably, thereby reducing vibration of the balance valve assembly,
the balance valve assembly comprises a balance valve plug 1, a balance valve spring 2, a balance valve spool 3, a balance valve spool O-shaped ring 4 and a balance valve plug O-shaped ring 12, wherein the balance valve plug 1 is basically in a ladder shape, one end of the balance valve plug 1 is accommodated in the ladder groove, and the balance valve plug 1 and the ladder groove are in threaded connection. The step of the balance valve plug 1 is abutted against one end of the valve body 13, and the balance valve plug O-shaped ring 12 is arranged between the step of the balance valve plug and the valve body 13. One end of the balance valve plug 1, which is accommodated in the stepped groove, is provided with an accommodating hole, and the accommodating hole is used for accommodating the balance valve spring 2. A balance valve balance cavity 11 is formed among the valve body 13, the balance valve plug 1 and the balance valve core 3, and the balance valve plug 1 is used for isolating seawater from the balance valve balance cavity 11; the balance valve spool O-ring 4 is used to isolate the balance valve balance chamber 11 from the valve body chamber 16. One end of the balance valve spring 2 is connected to the bottom of the accommodating hole, and the other end is connected to the balance valve core 3. The balance valve spring 2 has a pre-compression amount.
The balance valve core 3 is T-shaped, one end of the balance valve core passes through the through hole and then enters the valve body cavity 16, and the other end is accommodated in the stepped groove. A predetermined gap is provided between a surface of the balance valve spool 3, which is received in the stepped groove, with one end thereof facing the bottom surface of the stepped groove and the bottom surface of the stepped groove, so as to ensure sealing between the balance valve spool 3 and the check valve assembly. The balance valve spool O-ring 4 is partially housed within the balance valve spool 3, between the balance valve spool 3 and the wall of the through hole.
The check valve assembly comprises an inner nest 6, a check valve spool 7, a check valve spring 8, a check valve plug 9, a check valve spool O-shaped ring 17, an inner nest O-shaped ring 19 and a check valve plug O-shaped ring 20, wherein the check valve spool 7 is arranged in the inner nest 6, and the inner nest 6 is accommodated in the accommodating groove. The one-way valve plug 9 is partially accommodated in the groove and is in threaded connection with the valve body 13.
The check valve plug 9 is in a ladder shape and is provided with a ladder-shaped check valve through hole 10. The one-way valve through port 10 is used for being connected with a two-way sea water pump. A check valve chamber 18 is formed among the valve body 13, the check valve plug 9 and the check valve core 7. The check valve plug O-shaped ring 20 is arranged between the valve body 13 and the step of the check valve plug 9 and is used for isolating the seawater from the check valve chamber 18.
The inner nest 6 is accommodated in the accommodating groove, and is provided with a stepped hole which is communicated with the valve body cavity 16. The check valve core 7 is accommodated in the stepped hole. A certain gap is arranged between the step surface of the step hole and the surface of the check valve core 7, which is far away from the check valve plug 9, so as to ensure reliable sealing between the balance valve core 3 and the check valve core 7. In the embodiment, the inner nest 6 is abutted against the bottom surface of the accommodating groove by the extrusion of the one-way valve plug 9, so that the inner nest 6 is reliably positioned; the sealing force of the close fit between the balance valve spool 3 and the check valve spool 7 is provided by either the balance valve spring 2 or the check valve spring 8 or both together.
The check valve spool O-ring 17 is disposed between the check valve spool 7 and the inner nest 6 for blocking the valve body chamber 16 and the check valve chamber 18. The inner nest O-ring 19 is disposed between the inner nest 6 and the valve body 13 for isolating the valve body chamber 16 from the check valve chamber 18. One end of the one-way valve spring 8 is connected with the one-way valve core 7, and the other end is connected with the one-way valve plug 9. In this embodiment, the check valve spring 8 has a pre-compression amount so that the check valve spool 7 is fitted with the balance valve spool 3. In this embodiment, the valve seat is formed between the valve core 7 of the one-way valve and the valve core 3 of the balance valve, so that the valve seat in the conventional sense is eliminated, the structure is greatly simplified, and the volume of the one-way balance valve is further reduced.
When the one-way balance valve suitable for the buoyancy adjustment of the submersible works, the valve body through-flow port 5 and the one-way valve through-flow port 10 are respectively connected with a ballast water tank and a two-way seawater pump of the buoyancy adjustment system of the submersible, when the seawater pump runs forward, the one-way valve through-flow port 10 is communicated with an outlet of the seawater pump, the seawater pump discharges seawater from the outlet of the seawater pump, the seawater enters the one-way valve chamber 18 through the one-way valve through-flow port 10, the one-way valve spool 7 is pressed on the inner nest 6 by the seawater and the one-way valve spring 8 at the moment, the balance valve spool 3 receives the effects of the seawater pressure in the balance valve balance chamber 11, the elasticity of the balance valve spring 2 and the seawater pressure of the one-way valve through-flow port 10 entering the one-way valve spool 7, and when the seawater pressure received by the balance valve spool 3 is larger than the sum of the elasticity of the balance valve spring 2 and the pressure in the balance valve balance chamber 11, the balance valve spool 3 is far away from the balance valve spool 7, and enters the one-way valve spool 16, and the one-way valve spool 3 is separated from the balance valve spool 5, and the one-way valve spool is opened. When the seawater pump runs reversely, the one-way valve through-flow opening 10 is connected with the seawater pump inlet, a certain vacuum degree is generated at the seawater pump inlet, seawater in the ballast water tank enters the valve body cavity 16 from the valve body through-flow opening 5 and directly pushes the one-way valve core 7 away to enter the one-way valve cavity 18, and finally the seawater is discharged from the one-way valve through-flow opening 10 to enter the seawater pump inlet.
Due to the symmetry of the buoyancy regulating system, the one-way balance valve is also arranged between the two-way seawater pump and the ocean environment, and the one-way valve through port 10 and the valve body through port 5 are respectively communicated with the seawater pump and the seawater. When the seawater pump is operated in the forward direction, the one-way valve through-flow port 10 is communicated with the suction port of the seawater pump, the valve body through-flow port 5 is communicated with seawater, and the suction port of the seawater pump generates a certain vacuum degree, so that the seawater enters the valve body cavity 16 from the valve body through-flow port 5 and directly pushes the one-way valve core 7 open, then enters the one-way valve cavity 18, and finally is discharged from the one-way valve through-flow port 10 to enter the suction port of the seawater pump. When the seawater pump runs reversely, the one-way valve through-hole 10 is connected with the outlet of the seawater pump, after the seawater pump discharges the seawater from the outlet of the seawater pump, the seawater enters the one-way valve chamber 18 through the one-way valve through-hole 10, the one-way valve core 7 is pressed on the inner nest 6 under the combined action of the seawater and the one-way valve spring 8, the balance valve core 3 is subjected to the seawater pressure in the balance valve balance cavity 11, the spring force of the balance valve spring 2 and the seawater pressure entering from the one-way valve through-hole 10, and when the seawater pressure is larger than the sum of the spring force and the seawater pressure in the balance cavity 11, the balance valve core 3 is pushed open, so that the balance valve port is opened, and after the seawater enters the valve body chamber 16, the seawater enters the marine environment through the valve through-hole 5.
According to the buoyancy regulating system based on the bidirectional seawater pump, the volume of seawater in the adjustable ballast water tank is adaptively regulated by the buoyancy regulating system through the forward and reverse rotation of the bidirectional seawater pump, so that the weight of the carrying platform is regulated, and the buoyancy of the carrying platform is regulated. In addition, the one-way balance valve integrates the one-way valve and the balance valve, has a simple structure, ensures that the flow passage of seawater in the valve is shorter, reduces interfaces, reduces the probability of seawater leakage, improves the integration level and reduces the volume
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. Buoyancy adjusting system based on two-way sea water pump, its characterized in that:
the buoyancy regulating system comprises an adjustable ballast water tank, two valve banks and a two-way seawater pump, wherein the two valve banks are a first valve bank and a second valve bank respectively, the two-way seawater pump is provided with an I port and an II port, the first valve bank is connected with the adjustable ballast water tank and the I port, and the second valve bank is connected with the II port and is communicated with seawater; the buoyancy regulating system is used for adaptively regulating the volume of seawater in the adjustable ballast water tank through the forward and backward rotation of the bidirectional seawater pump, so that buoyancy regulation is realized;
the first valve group comprises a first one-way valve and a first balance valve, the first one-way valve is connected with the first balance valve in parallel, the second valve group comprises a second one-way valve and a second balance valve, and the second one-way valve is connected with the second balance valve in parallel; or, the first valve group and the second valve group are both one-way balance valves, the one-way balance valves comprise valve bodies, one-way valve assemblies and balance valve assemblies, the one-way valve assemblies and the balance valve assemblies are respectively embedded at two opposite ends of the valve bodies, the balance valve assemblies comprise balance valve spools, the one-way valve assemblies comprise one-way valve spools, the one-way valve spools are detachably connected with the balance valve spools, and the one-way valve spools or the balance valve spools are separated from or abutted against the balance valve spools through movement along the length direction of the valve bodies, so that the one-way balance valves are opened or closed;
the valve body is provided with a valve body through-flow port and a valve body cavity communicated with the valve body through-flow port, and the valve body through-flow port penetrates through one side of the valve body; the balance valve assembly comprises a balance valve plug, a balance valve spring and a balance valve core, wherein the balance valve spring and the balance valve core are accommodated in the valve body, a balance valve balance cavity is formed among the balance valve plug, the balance valve core and the valve body, one end of the balance valve core is accommodated in the balance valve balance cavity, and the other end of the balance valve core extends into the valve body cavity; the balance valve plug is connected to one end of the valve body; one end of the balance valve spring is connected with the balance valve core, and the other end of the balance valve spring is connected with the balance valve plug; the balancing valve spring is located within the balancing valve balancing chamber, having a pre-compression amount.
2. The bi-directional seawater pump based buoyancy adjustment system of claim 1, wherein: the I port is connected with the inlet end of the first balance valve and the outlet end of the first one-way valve, and the outlet end of the first balance valve and the inlet end of the first one-way valve are connected with the adjustable ballast water tank; the II port is connected to the outlet end of the second one-way valve and the inlet end of the second balance valve, and the outlet end of the second balance valve and the inlet end of the second one-way valve are communicated with sea water through a filter.
3. The bi-directional seawater pump based buoyancy adjustment system of claim 2, wherein: the buoyancy regulating system further comprises a first safety valve and a second safety valve, one end of the first safety valve is connected to a pipeline between the second valve group and the bidirectional seawater pump, and the other end of the first safety valve is connected to a pipeline between the second valve group and the filter; one end of the second safety valve is connected to a pipeline between the second valve group and the filter, and the other end of the second safety valve is connected to a pipeline between the first valve group and the bidirectional seawater pump.
4. The bi-directional seawater pump based buoyancy adjustment system of claim 1, wherein: the check valve group comprises a check valve plug, a check valve core and a check valve spring which are accommodated in the valve body, and a check valve cavity is formed among the check valve plug, the check valve core and the valve body; the one-way valve plug is connected to the other end of the valve body and is provided with a one-way valve through-flow port which is communicated with the one-way valve chamber; two ends of the one-way valve spring are respectively connected with the one-way valve plug and the one-way valve core; the check valve spring has a pre-compressed amount; the one-way valve core or the balance valve core is moved to enable the valve body through-flow port to be communicated with or isolated from the one-way valve through-flow port, and then the one-way balance valve is opened or closed.
5. The bi-directional seawater pump based buoyancy adjustment system of claim 4, wherein: the valve body is used for bearing the one-way valve assembly and the balance valve assembly, one end of the valve body is provided with a stepped groove, and the other end of the valve body is provided with a groove; the bottom surface of the step groove is provided with a through hole, and the through hole and the step groove are commonly used for accommodating the balance valve assembly.
6. The bi-directional seawater pump based buoyancy adjustment system of claim 5, wherein: the bottom of the groove is provided with a containing groove, and the containing groove and the groove are used for containing the check valve core and part of the check valve plug together; the accommodating groove is communicated with the valve body cavity, the valve body cavity is communicated with the through hole, and one end of the balance valve core penetrates through the through hole and then stretches into the valve body cavity.
7. The bi-directional seawater pump based buoyancy adjustment system of claim 5, wherein: the valve body is also provided with a balance port and a damping hole, and the damping hole is respectively communicated with the stepped groove and the balance port.
8. The bi-directional seawater pump based buoyancy adjustment system of claim 6, wherein: the check valve assembly further comprises an inner nest accommodated in the accommodating groove, a stepped hole is formed in the inner nest, the stepped hole is communicated with the valve body cavity, and the check valve core is accommodated in the stepped hole; a preset gap is arranged between the step surface of the step hole and the surface of the one-way valve core, which is far away from the one-way valve plug.
9. The bi-directional seawater pump based buoyancy adjustment system of claim 5, wherein: and a preset gap is reserved between one end of the balance valve core accommodated in the stepped groove and the bottom surface of the stepped groove.
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| CN110778554B (en) * | 2019-09-16 | 2021-04-06 | 武汉华喜特种液压设备有限公司 | Balance safety valve group for buoyancy adjusting system |
| CN110901866B (en) * | 2019-11-28 | 2021-09-28 | 天津大学 | Rapid buoyancy adjusting system for small and medium-sized underwater unmanned aircraft |
| CN110979608B (en) * | 2019-12-11 | 2021-07-30 | 武汉华喜特种液压设备有限公司 | Buoyancy adjusting system based on double pumps |
| CN110985454B (en) * | 2019-12-30 | 2021-12-03 | 中船重工重庆液压机电有限公司 | Hydraulic system of underwater multifunctional solid ballast load rejection device |
| CN112793748B (en) * | 2020-12-31 | 2022-03-18 | 华中科技大学 | Full-sea-depth energy-saving seawater hydraulic buoyancy self-adaptive system and submersible |
| CN112849376A (en) * | 2021-03-30 | 2021-05-28 | 北京机电工程研究所 | Buoyancy adjusting device and diving equipment with same |
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