CN115875469A - PV valve pressure relief load sensitive compensation regulation and control system for ballast - Google Patents
PV valve pressure relief load sensitive compensation regulation and control system for ballast Download PDFInfo
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- 230000035945 sensitivity Effects 0.000 abstract description 3
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Abstract
The invention discloses a PV valve pressure relief load sensitivity compensation regulation and control system for ballast, which relates to the technical field of PV valve compensation regulation and control. According to the invention, the impact plate is arranged, when liquid enters the interior of the PV valve, the liquid can pass through the position of the impact plate, when the valve core is suddenly closed and stops conveying, a part of impact force can be borne by the side surface of the impact plate, meanwhile, the impact force of the liquid can be dispersed through the matching of the broken cone and the component force groove, meanwhile, the force unloading plate can block and reduce the impact force when the liquid is dispersed to two sides, in the process, the elastic assembly can greatly weaken the impact force in the water hammer effect by using the elastic potential energy of the elastic assembly, further, the generation of the water hammer effect is reduced when the valve core is suddenly closed, and the protection effect on the valve core is improved.
Description
Technical Field
The invention relates to the technical field of PV valve compensation regulation, in particular to a PV valve pressure relief load sensitivity compensation regulation system for ballast.
Background
The remote control hydraulic system of the marine valve is one of the key subsystems of modern ships and is used for controlling pipelines and valves to realize the refund of ship ballast water, fuel oil and the like. The intelligent ship control system integrates the technologies of machinery, electricity, liquid, control and the like, and realizes automation and intellectualization of ship operation. Compared with the traditional control system, the ship valve remote control hydraulic system has the characteristics of simplicity in operation, strong timeliness, high reliability and the like; meanwhile, the centralized control operation can be realized, and the number of required operators and the labor intensity are greatly reduced. As a system with high control precision requirement, a valve remote control system develops towards intellectualization and rapid response.
In the prior art, as Chinese patent numbers are: CN112539288A, "a PV valve for ballast tank", discloses a PV valve for ballast tank, which comprises a vacuum pressure release rod, the outside of the vacuum pressure release rod is provided with an eyebolt, the lower end of the eyebolt is provided with a shell, the inside of the shell is provided with a float, the lower end of the float is provided with a pressure valve disc guide seat, a pressure spring is arranged between the pressure valve disc guide seat and the float, and the lower end of the pressure valve disc guide seat is provided with a pressure valve disc body. This PV valve for ballast tank possesses can accomplish the pressure release comparatively conveniently when the too high outside pressure release of needs of atmospheric pressure in the ballast tank, can cross the pressurization that needs the inside pressure boost comparatively conveniently to accomplish the ballast tank when the atmospheric pressure is low in the ballast tank simultaneously, and can prevent that water from getting into the ballast tank when ballast tank water pressure is too big, solved the inconvenient problem of discharging when the vacuum pressure in the ballast tank needs to discharge, can bring better use prospect.
In the prior art, if the existing PV valve is suddenly closed in the liquid flowing process, the liquid can be cut off, and then impact can be caused to a valve core component, namely, the water hammer effect is achieved.
Disclosure of Invention
The invention aims to provide a pressure relief load sensitive compensation regulation and control system of a PV valve for ballast, which aims to solve the problems that when the PV valve in the prior art is operated in the background art, if the PV valve is suddenly closed in the liquid flowing process, liquid can be cut off, and then impact can be generated on a valve core part, namely, a water hammer effect, and when the valve core frequently meets the situation, the valve core is loosened due to impact, so that the sealing performance of a valve body is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a pressure release load sensitive compensation regulation and control system of a PV valve for ballast comprises the PV valve, wherein a regulator is arranged at the top of the PV valve, an impact plate is arranged at the inner side of the PV valve, a cage net is arranged at the inner side of the PV valve, two blocking blocks are symmetrically arranged in the middle of the inner wall of the PV valve, the impact plate is movably arranged at one side of the two blocking blocks, a plurality of breaking cones are uniformly distributed at one side of the impact plate, a plurality of mounting strips are arranged at the side surface of the impact plate, a force unloading plate is arranged at the side surface of the mounting strips, a plurality of elastic assemblies are uniformly distributed at the other side of the impact plate, and one end of each elastic assembly is connected to one side of the blocking block;
the top of the cage net is movably connected with a valve sleeve, the bottom of the cage net is provided with a valve seat, and a sealing surface is arranged at the joint of the top of the valve seat and the bottom of the cage net.
Preferably, the top of the regulator is provided with a motor, the bottom of the motor is provided with a rotating shaft, and the outer wall of the rotating shaft is sleeved with a transmission belt.
Preferably, the one end of drive belt is connected with the transmission shaft, the threaded rod is installed to the bottom of transmission shaft, the outer wall of threaded rod is provided with the rotating sleeve.
Preferably, the outer wall threaded connection of threaded rod has lock nut, lock nut sets up in the inboard below of rotating the cover, the transmission supporting seat is installed at the top of modulator, the outer wall activity of transmission shaft runs through in the inboard of transmission supporting seat, be connected between the bottom of threaded rod and the top of valve barrel.
Preferably, the outer wall of the breaking cone is provided with a plurality of force-dividing grooves, the side surface of the force-unloading plate is provided with a mounting bar, and the side surface of the mounting bar is mounted on one side of the impact plate.
Preferably, a rotating assembly is installed at one end of the impact plate, and both ends of the rotating assembly are installed at one side of the blocking block.
Preferably, the side of the cage net is uniformly penetrated and provided with a plurality of through grooves, the two ends of the cage net are uniformly penetrated and provided with a plurality of through holes, and the outer sides of the through grooves and the through holes are sleeved with the inner wall of the valve sleeve.
Preferably, the bottom of the motor is fixedly provided with a connecting block, the bottom of the connecting block is fixedly connected to the top of the regulator, and two ends of the regulator are provided with sealing covers.
Preferably, the two ends of the PV valve are fixedly provided with flange plates, the inner sides of the flange plates are provided with sealing rings, the inner sides of the blocking blocks are provided with plugging grooves, and the outer walls of the valve seats are connected to the outer walls of the plugging grooves.
Preferably, the motor is rigidly connected with a variable pump through a coupler, the variable pump is connected with a one-way valve, the variable pump is provided with a filter on a pipeline connecting an oil inlet of the variable pump and an oil outlet of an oil tank, the one-way valve is connected with a pressure compensation valve, the oil outlet of the variable pump is connected with a variable cylinder, the pressure compensation valve is connected with an electromagnetic directional valve, the variable cylinder is connected with a filter amplifier, the filter amplifier is connected with a D/a conversion module, the D/a conversion module is connected with a computer module, the computer module is connected with an a/D conversion module, the one-way valve is connected with a pressure sensor through the electromagnetic directional valve, the pressure sensor is connected with the a/D conversion module, the electromagnetic directional valve is connected with a valve position indicator, and the electromagnetic directional valve is connected with a two-way hydraulic cylinder actuator.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the impact plate is arranged on one side of the water inlet inside the PV valve, the impact plate is symmetrically distributed, the plurality of breaking cones are uniformly distributed on one side of the impact plate, the component force groove is formed in the outer side of each breaking cone, the mounting strip is further arranged on the side surface of the impact plate and connected with the force unloading plate, the plurality of elastic assemblies are uniformly distributed on the other side of the impact plate, one end of the impact plate is rotatably connected to one side of the PV valve through the rotating assembly, so that when the liquid enters the PV valve in the using process, the liquid passes through the position of the impact plate, when the valve core is suddenly closed and stops conveying, a part of impact force can be borne by the side surface of the impact plate, meanwhile, the impact force of the liquid can be dispersed through the matching of the breaking cones and the component force grooves, meanwhile, the force unloading plate can block and reduce the impact force when the liquid is dispersed to two sides, the elastic potential energy of the elastic assembly can be utilized in the process, the impact force in the water hammer effect can be greatly weakened by the elastic potential energy of the elastic assembly, the impact force can be further favorably reduced when the valve core is suddenly closed, the water hammer effect is reduced, the protection effect is improved, and the service life of the valve core is prolonged.
2. According to the invention, the cage net is arranged on the inner side of the PV valve, the plurality of through grooves and the plurality of through holes are uniformly formed in the side surface of the cage net, the valve sleeve is movably sleeved on the outer side of the cage net, the valve seat is fixedly connected to the bottom of the cage net, and the sealing surface is arranged between the cage net and the valve seat, so that the valve is convenient to use through a cylindrical design, liquid flow force is favorably distributed to two sides when the valve core is closed and blocked, the impact force of the front contact of the valve core is reduced, a certain filtering effect can be provided through the through grooves and the through holes, the conveying of sundries is reduced, the impurities at the rear section are reduced, and the stable using effect of the whole pipeline and the rear section equipment is improved.
Drawings
FIG. 1 is a perspective view of a PV valve pressure relief load sensitive compensation regulation system for ballast in accordance with the present invention;
FIG. 2 is a schematic view of another embodiment of the PV valve pressure relief load-responsive compensation regulation system for ballast according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a valve body of the pressure-relief load-sensitive compensation regulation and control system of a ballast PV valve according to the present invention;
FIG. 4 is a schematic structural view of another angle inside a valve body of the PV valve pressure relief load sensitive compensation regulation and control system for ballast according to the present invention;
FIG. 5 is a schematic diagram of a valve core portion of a PV valve pressure relief load sensitive compensation regulation and control system for ballasting according to the present invention;
FIG. 6 is a schematic structural diagram of an impact plate of a PV valve pressure relief load sensitive compensation regulation and control system for ballasting according to the present invention;
FIG. 7 is an enlarged schematic structural view of a ballast PV valve decompression load-sensitive compensation regulation and control system A according to the present invention;
FIG. 8 is an enlarged schematic structural view of a pressure-relief load-sensitive compensation regulation and control system B of a ballast PV valve according to the present invention;
fig. 9 is a schematic structural diagram of a pressure-relief load-sensitive compensation regulation and control system of a ballast PV valve according to the present invention.
In the figure:
1. a PV valve; 2. a regulator; 3. an impact plate; 4. a cage net; 11. a flange plate; 12. a seal ring; 13. a blocking block; 14. plugging the groove; 21. an electric motor; 22. a rotating shaft; 23. a transmission belt; 24. a drive shaft; 25. a threaded rod; 26. rotating the sleeve; 27. locking the nut; 28. a transmission supporting seat; 31. breaking a punch cone; 32. a component force groove; 33. mounting a bar; 34. a stress relief plate; 35. a resilient member; 36. a rotating assembly; 41. a valve housing; 42. a valve seat; 43. a through groove; 44. a through hole; 45. a sealing surface; 51. a motor; 52. a variable displacement pump; 53. a one-way valve; 54. a filter; 55. a pressure compensating valve; 56. a variable cylinder; 57. an electromagnetic directional valve; 58. a filter amplifier; 59. a D/A conversion module; 510. a computer module; 511. an A/D conversion module; 512. a pressure sensor; 513. a valve position indicator; 514. and a bidirectional hydraulic cylinder actuator.
Description of the preferred embodiment
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8: a PV valve pressure relief load sensitivity compensation regulation and control system for ballast comprises a PV valve 1, a regulator 2 is arranged at the top of the PV valve 1, an impact plate 3 is arranged at the inner side of the PV valve 1, a cage 4 is arranged at the inner side of the PV valve 1, two blocking blocks 13 are symmetrically arranged in the middle of the inner wall of the PV valve 1, the impact plate 3 is movably arranged at one side of the two blocking blocks 13, a plurality of breaking cones 31 are uniformly distributed at one side of the impact plate 3, a plurality of mounting bars 33 are arranged at the side of the impact plate 3, a force unloading plate 34 is arranged at the side of the mounting bars 33, a plurality of elastic assemblies 35 are uniformly distributed at the other side of the impact plate 3, one ends of the elastic assemblies 35 are connected at one side of the blocking blocks 13, the impact plate 3 is arranged at one side of a water inlet at the inner side of the PV valve 1, the impact plate 3 is symmetrically distributed, a plurality of breaking cones 31 are uniformly distributed at one side of the impact plate 3, a component force groove 32 is formed at the outer side of the breaking cones 31, the side of the impact plate 3 is also provided with a mounting bar 33 and is connected with a force unloading plate 34, a plurality of elastic assemblies 35 are uniformly distributed on the other side of the impact plate 3, one end of the impact plate 3 is rotatably connected with one side of the PV valve 1 through a rotating assembly 36, so that when liquid enters the interior of the PV valve 1 in the using process, the liquid can pass through the position of the impact plate 3, when the valve core is suddenly closed and stops conveying, a part of impact force can be borne by the side of the impact plate 3, meanwhile, the liquid can be dispersed through the matching of the impact cone 31 and the component force groove 32, the impact force of the force unloading plate 34 can block and reduce the impact force when the liquid is dispersed to two sides, in the process, the elastic assemblies 35 can greatly weaken the impact force in the water hammer effect by using the elastic potential energy of the elastic components, and further, when the valve core is suddenly closed, the water hammer effect is reduced, the protection effect on the valve core is improved, and the service life of the valve core is prolonged;
As shown in fig. 1-5, a motor 21 is installed on the top of the controller 2, a rotating shaft 22 is installed on the bottom of the motor 21, a transmission belt 23 is sleeved on the outer wall of the rotating shaft 22, a rotating force can be provided by the motor 21, an effective rotating shaft transmission effect can be provided by the rotating shaft 22 and the transmission belt 23, and then the rear section component can be driven to rotate.
As shown in fig. 1 and fig. 3 to 5, one end of the transmission belt 23 is connected with a transmission shaft 24, a threaded rod 25 is installed at the bottom of the transmission shaft 24, a rotating sleeve 26 is arranged on the outer wall of the threaded rod 25, transmission is realized through connection of the transmission shaft 24 and the transmission belt 23, and the threaded rod 25 is driven to rotate, so that the threaded rod 25 can rotate and lift at the inner side of the rotating sleeve 26.
As shown in fig. 1-5, the outer wall of the threaded rod 25 is connected with a lock nut 27 through threads, the lock nut 27 is disposed under the inner side of the rotating sleeve 26, a transmission support seat 28 is mounted at the top of the regulator 2, the outer wall of the transmission shaft 24 movably penetrates through the inner side of the transmission support seat 28, the bottom of the threaded rod 25 is connected with the top of the valve housing 41, the inner side of the lock nut 27 is connected with the threaded rod 25 through threads, so that the lifting adjustment effect of the lock nut can be realized, and the transmission support seat 28 can provide a stable supporting effect for the threaded rod 25 at the top in the lifting adjustment process.
As shown in fig. 4, 6 and 8, the outer wall of the piercing cone 31 is provided with a plurality of force component grooves 32, the side surface of the force unloading plate 34 is provided with a mounting bar 33, the side surface of the mounting bar 33 is mounted on one side of the impact plate 3, and the force component grooves 32 can be matched with the tip part of the piercing cone 31 to realize the effect of impact dispersion on liquid, which is beneficial to reducing the effect of impact force.
As shown in fig. 2, 4 and 6, the rotating assembly 36 is installed at one end of the impact plate 3, both ends of the rotating assembly 36 are installed at one side of the blocking block 13, the impact plate 3 can be rotated and installed through the rotating assembly 36, and the impact plate 3 is facilitated to realize rotational displacement when elastic potential energy buffering is realized through the elastic assembly 35, so that an effective buffering function is guaranteed to be provided.
As shown in fig. 3-5, a plurality of through grooves 43 have been evenly run through to the side of cage 4, a plurality of through-holes 44 have been evenly run through to the both ends of cage 4, the outside of leading to groove 43 and through-hole 44 is located to the inner wall cover of valve barrel 41, through leading to the usable its notch design of groove 43 and having made things convenient for liquid to flow through, here simultaneously with through-hole 44 cooperation guaranteed that liquid is stable through having realized certain filter effect simultaneously, and the later stage can be scraped the clearance by filterable material at the in-process that valve barrel 41 goes up and down.
As shown in fig. 1-5, the bottom fixed mounting of motor 21 has the connecting block, and the bottom fixed connection of connecting block is at the top of regulator 2, and the both ends of regulator 2 are provided with sealed lid, can realize fixed mounting's effect to motor 21 through the connecting block, and then has promoted the stability when motor 21 uses, then can realize sealed installation's effect to the both ends of regulator 2 through sealed lid.
As shown in fig. 1-5, flanges 11 are fixedly mounted at two ends of a PV valve 1, a sealing ring 12 is mounted on the inner side of the flange 11, a blocking groove 14 is formed in the inner side of a blocking block 13, the outer wall of a valve seat 42 is connected to the outer wall of the blocking groove 14, the PV valve 1 and a pipeline can be conveniently connected and fixed through the flange 11, the sealing ring 12 can provide a sealing effect after connection, the blocking block 13 facilitates the falling and blocking of a valve sleeve 41, the liquid blocking effect is integrally realized, and the blocking groove 14 can provide movement for the valve sleeve 41 and space for installing, sealing and connecting the valve seat 42.
As shown in fig. 9, a variable pump 52 is rigidly connected to a motor 51 through a coupling, the variable pump 52 is connected to a one-way valve 53, the variable pump 52 is provided with a filter 54 on a pipeline connecting an oil inlet of the variable pump 52 and an oil outlet of an oil tank, the one-way valve 53 is connected to a pressure compensation valve 55, the oil outlet of the variable pump 52 is connected to a variable cylinder 56, the pressure compensation valve 55 is connected to an electromagnetic directional valve 57, the variable cylinder 56 is connected to a filter amplifier 58, the filter amplifier 58 is connected to a D/a conversion module 59, the D/a conversion module 59 is connected to a computer module 510, the computer module 510 is connected to an a/D conversion module 511, the one-way valve 53 is connected to a pressure sensor 512 through the electromagnetic directional valve 57, the pressure sensor 512 is connected to the a/D conversion module 511, the electromagnetic directional valve 57 is connected to a valve position indicator, the electromagnetic directional valve 57 is connected to a two-way hydraulic cylinder actuator 514, the motor 51 is electrically started, the variable pump 52 is driven to rotate through the coupling, the variable pump 52 sucks hydraulic oil from the oil tank through an oil inlet, the pressure oil outlet enters an oil inlet of the variable cylinder 56, and the oil inlet passes through a high-pressure oil pipe 53 and enters an overflow valve 53. In the process of rotating the motor, oil ports of the shuttle valve are respectively connected with oil ports of an oil path of the hydraulic motor, a high-pressure value of a hydraulic motor loop is output to an output interface of the shuttle valve and is connected to a control oil port of the pressure compensation valve 55, an interface on a pipeline connecting an oil outlet of the pressure compensation valve 55 and an oil inlet of the three-position four-way reversing valve is connected with a control valve port of the pressure compensation valve 55, and therefore under the action of the pressure compensation valve 55, the pressure difference between the oil outlet of the pressure compensation valve 55 and the oil port of the first oil path of the two-way hydraulic motor is kept at a constant value. When the motor rotates to a preset angle, namely the controlled valve rotates to a preset opening, the electromagnetic control port of the three-position four-way electromagnetic reversing valve is de-energized, the reversing valve is in a middle position, the hydraulic pump is unloaded, and the valve is locked at a preset position. When the two-way hydraulic motor rotates anticlockwise, an oil port of an oil path of the motor is a high-pressure oil port, an oil port of the oil path is a low-pressure oil port, an electromagnet of the three-position four-way reversing valve is electrified, the system controls hydraulic oil to enter the three-position four-way reversing valve from the pressure compensation valve 55 through an oil inlet of the reversing valve, the hydraulic oil enters the oil port of the oil path of the motor from an oil outlet of the three-position four-way reversing valve to drive the two-way hydraulic motor to rotate anticlockwise, the hydraulic oil flows out from the oil port of the oil path of the two-way hydraulic motor, enters the three-position four-way reversing valve through an oil outlet of the three-position four-way reversing valve, flows out from an oil return port of the three-position four-way reversing valve to enter a low-pressure pipeline, and returns to an oil tank through an oil return pipe. When the piston rod of the bidirectional hydraulic cylinder actuator 514 moves to the right, the oil inlet of the bidirectional hydraulic cylinder actuator 514 is a high-pressure oil port, the left oil cylinder is a high-pressure oil cavity, the oil return port is a low-pressure oil port, and the right oil cylinder is a low-pressure oil cavity; then the oil liquid flows out from the oil outlet of the hydraulic lock and enters the high-pressure cavity through the oil inlet of the hydraulic cylinder, and the hydraulic oil in the low-pressure cavity of the oil cylinder flows out through the oil return port of the hydraulic cylinder, enters the oil outlet of the hydraulic lock and flows out from the oil inlet; the oil liquid flows into the three-position four-way reversing valve through an oil outlet of the three-position four-way reversing valve, flows back to the low-pressure pipeline through an oil return port, and finally flows back to the oil tank through an oil return pipe. In the moving process of the hydraulic cylinder, the bidirectional hydraulic cylinder actuator outputs the high pressure value of the bidirectional hydraulic cylinder actuator loop to the output interface and is connected to the control valve port of the pressure compensation valve 55; the interface on the pipeline connecting the oil outlet of the pressure compensation valve 55 and the oil inlet of the three-position four-way reversing valve is connected with the control valve port of the pressure compensation valve 55, so that the pressure difference between the oil outlet of the pressure compensation valve 55 and the oil inlet of the bidirectional hydraulic cylinder actuator 514 is kept at a constant value under the action of the pressure compensation valve. When the piston rod of the hydraulic cylinder moves to a preset position, even if the controlled valve moves to a preset opening, the electromagnetic control port of the three-position four-way electromagnetic directional valve is de-energized, the directional valve is in a middle position, the hydraulic pump is unloaded, and the valve is locked at the preset position. The computer module 510 transmits the control signal to the filter amplifier 58 through the D/a conversion module 59, and finally transmits the amplified control signal to the electromagnetic control port of the proportional directional valve through the filter amplifier 58. When the signal input to the electromagnetic control port is larger, the pressure of the output port is larger, that is, the pressure of the rodless cavity of the variable cylinder 56 is larger, the piston moves leftwards, so that the output pressure of the variable pump 52 is increased; conversely, when the signal input to the solenoid control port is smaller, the pressure of the output port is smaller, that is, the rodless chamber pressure of the variable cylinder 56 is smaller, and the piston moves rightward, so that the output pressure of the variable pump 52 is reduced. When the bi-directional hydraulic cylinder actuator 514 is actuated: if the actual pressure difference is larger than the preset pressure difference due to the reduction of the load pressure of the actuator circuit, the computer control signal is reduced, the output displacement of the variable displacement pump is reduced, and the output pressure of the system is further reduced. On the contrary, if the actual pressure difference is smaller than the preset pressure difference due to the increase of the load pressure of the actuator circuit, the computer control signal is increased, the output displacement of the variable displacement pump is increased, and the output pressure of the system is further increased. So that the pressure difference between the two is kept within a set range.
In the invention, when the PV valve pressure relief load sensitive compensation regulation and control system for ballast is used, firstly, the PV valve 1 and a pipeline can be conveniently connected and fixed through the flange plate 11, the sealing ring 12 can provide a sealing effect after connection, the blocking block 13 facilitates the whole liquid blocking effect after the valve sleeve 41 is dropped and blocked, the blocking groove 14 can provide movement for the valve sleeve 41 and space effect for installing and sealing connection for the valve seat 42, the motor 21 can provide rotating force, the rotating shaft 22 and the transmission belt 23 can provide effective rotating shaft transmission effect, then the rear section part can be driven to rotate, the transmission is realized through the connection of the transmission shaft 24 and the transmission belt 23 to drive the threaded rod 25 to rotate, and the threaded rod 25 can be enabled to rotate and lift at the inner side of the rotating sleeve 26, the threaded connection between the inner side of the locking nut 27 and the threaded rod 25 can realize the lifting adjustment effect, the transmission support seat 28 can provide a stable supporting effect for the threaded rod 25 in the lifting adjustment process at the top, when liquid enters the interior of the PV valve 1 and passes through the position of the impact plate 3, when the valve core is suddenly closed and stops conveying, the side surface of the impact plate 3 can bear a part of impact force, meanwhile, the impact force of the liquid can be dispersed through the matching of the impact cone 31 and the component force groove 32, meanwhile, the force unloading plate 34 can block and reduce the impact force when the liquid is dispersed to two sides, in the process, the elastic component 35 can greatly weaken the impact force in the water hammer effect by using the elastic potential energy of the elastic component, further, the generation of the water hammer effect is reduced when the valve core is suddenly closed, the lifting protection effect is realized for the valve core, and the cage net 4 is designed in a cylindrical shape, the valve core is favorable for distributing liquid flow force to two sides when the valve core is closed and blocked, the impact force of front contact of the valve core is reduced, a certain filtering effect can be provided through the through groove 43 and the through hole 44, conveying of sundries is reduced, impurities at the rear section are reduced, the stable using effect of an integral pipeline and rear section equipment is improved, the motor 51 is started when being electrified, the variable pump 52 is driven to rotate through the coupler, the variable pump 52 sucks hydraulic oil from the oil tank through the oil suction port, pressure oil output by the oil outlet enters the oil inlet of the variable cylinder 56, and the oil enters the high-pressure oil pipe through the overflow valve oil inlet and the one-way valve 53. In the rotation process of the motor, the oil ports of the shuttle valve are respectively connected with the oil ports of the oil path of the hydraulic motor, the high-pressure value of the hydraulic motor loop is output to the output interface of the shuttle valve and is connected to the control oil port of the pressure compensation valve 55, the interface on the pipeline connecting the oil outlet of the pressure compensation valve 55 and the oil inlet of the three-position four-way reversing valve is connected with the control valve port of the pressure compensation valve 55, and therefore under the action of the pressure compensation valve 55, the pressure difference between the oil outlet of the pressure compensation valve 55 and the oil port of the first oil path of the two-way hydraulic motor is kept at a constant value. When the motor rotates to a preset angle, namely the controlled valve rotates to a preset opening, the electromagnetic control port of the three-position four-way electromagnetic reversing valve is de-energized, the reversing valve is positioned at the middle position, the hydraulic pump is unloaded, and the valve is locked at a preset position. When the two-way hydraulic motor rotates anticlockwise, an oil port of an oil path of the motor is a high-pressure oil port, an oil port of the oil path is a low-pressure oil port, an electromagnet of the three-position four-way reversing valve is electrified, the system controls hydraulic oil to enter the three-position four-way reversing valve from the pressure compensation valve 55 through an oil inlet of the reversing valve, the hydraulic oil enters the oil port of the oil path of the motor from an oil outlet of the three-position four-way reversing valve to drive the two-way hydraulic motor to rotate anticlockwise, the hydraulic oil flows out from the oil port of the oil path of the two-way hydraulic motor, enters the three-position four-way reversing valve through an oil outlet of the three-position four-way reversing valve, flows out from an oil return port of the three-position four-way reversing valve to enter a low-pressure pipeline, and returns to an oil tank through an oil return pipe. When the piston rod of the bidirectional hydraulic cylinder actuator 514 moves to the right, the oil inlet of the bidirectional hydraulic cylinder actuator 514 is a high-pressure oil port, the left oil cylinder is a high-pressure oil cavity, the oil return port is a low-pressure oil port, and the right oil cylinder is a low-pressure oil cavity; then the oil liquid flows out from the oil outlet of the hydraulic lock and enters the high-pressure cavity through the oil inlet of the hydraulic cylinder, and the hydraulic oil in the low-pressure cavity of the oil cylinder flows out through the oil return port of the hydraulic cylinder, enters the oil outlet of the hydraulic lock and flows out from the oil inlet; the oil liquid flows into the three-position four-way reversing valve through an oil outlet of the three-position four-way reversing valve, flows back to the low-pressure pipeline through an oil return port, and finally flows back to the oil tank through an oil return pipe.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.
Claims (10)
1. A PV valve pressure release load-sensitive compensation regulation and control system for ballast comprises a PV valve (1), and is characterized in that: the PV valve is characterized in that a regulator (2) is arranged at the top of the PV valve (1), an impact plate (3) is arranged on the inner side of the PV valve (1), a cage net (4) is arranged on the inner side of the PV valve (1), two blocking blocks (13) are symmetrically arranged in the middle of the inner wall of the PV valve (1), the impact plate (3) is movably arranged on one side of the two blocking blocks (13), a plurality of breaking cones (31) are uniformly distributed on one side of the impact plate (3), a plurality of mounting bars (33) are arranged on the side of the impact plate (3), a force unloading plate (34) is arranged on the side of each mounting bar (33), a plurality of elastic assemblies (35) are uniformly distributed on the other side of the impact plate (3), and one ends of the elastic assemblies (35) are connected to one side of each blocking block (13);
the top swing joint of cage net (4) has valve barrel (41), valve seat (42) are installed to the bottom of cage net (4), the top of valve seat (42) is provided with sealed face (45) with the bottom junction of cage net (4).
2. The PV valve pressure relief load sensitive compensation regulation system for ballast of claim 1, wherein: motor (21) is installed at the top of regulator (2), pivot (22) are installed to the bottom of motor (21), the outer wall cover of pivot (22) is equipped with drive belt (23).
3. The PV valve pressure relief load sensitive compensation regulation system for ballast of claim 2, wherein: one end of the transmission belt (23) is connected with a transmission shaft (24), a threaded rod (25) is installed at the bottom of the transmission shaft (24), and a rotating sleeve (26) is arranged on the outer wall of the threaded rod (25).
4. The PV valve pressure relief load sensitive compensation regulation system for ballast according to claim 3, wherein: the outer wall threaded connection of threaded rod (25) has lock nut (27), lock nut (27) set up the inboard below of rotating cover (26), transmission supporting seat (28) are installed at the top of modulator (2), the outer wall activity of transmission shaft (24) runs through the inboard in transmission supporting seat (28), be connected between the bottom of threaded rod (25) and the top of valve barrel (41).
5. The PV valve pressure relief load sensitive compensation regulation system for ballast of claim 3, wherein: the outer wall of the breaking cone (31) is provided with a plurality of component force grooves (32), the side surface of the stress relief plate (34) is provided with a mounting strip (33), and the side surface of the mounting strip (33) is mounted on one side of the impact plate (3).
6. The PV valve pressure relief load sensitive compensation regulation system for ballast according to claim 3, wherein: and a rotating assembly (36) is installed at one end of the impact plate (3), and two ends of the rotating assembly (36) are installed on one side of the blocking block (13).
7. The PV valve pressure relief load sensitive compensation regulation system for ballast of claim 6, wherein: the side of cage net (4) evenly runs through and has seted up a plurality of logical groove (43), evenly run through at the both ends of cage net (4) and have seted up a plurality of through-holes (44), the outside of leading to groove (43) and through-hole (44) is located to the inner wall cover of valve barrel (41).
8. The PV valve pressure relief load sensitive compensation regulation system for ballast of claim 2, wherein: the bottom of motor (21) is fixed with the connecting block, the bottom fixed connection of connecting block is at the top of regulator (2), the both ends of regulator (2) are provided with sealed lid.
9. The PV valve pressure relief load sensitive compensation regulation system for ballast of claim 3, wherein: the utility model discloses a PV valve, including PV valve (1), seal ring (12) are installed to the both ends fixed mounting of PV valve (1) ring flange (11), sealing washer (12) are installed to the inboard of ring flange (11), the inboard of blockking piece (13) is provided with shutoff groove (14), the outer wall in shutoff groove (14) is connected to the outer wall of disk seat (42).
10. The utility model provides a PV valve pressure release load sensitive compensation regulation and control system for ballast, still includes motor (51), its characterized in that: the variable pump hydraulic control system is characterized in that the motor (51) is rigidly connected with a variable pump (52) through a coupler, the variable pump (52) is connected with a one-way valve (53), the variable pump (52) is provided with a filter (54) on a pipeline connecting an oil inlet of the variable pump (52) and an oil outlet of an oil tank, the one-way valve (53) is connected with a pressure compensation valve (55), the oil outlet of the variable pump (52) is connected with a variable cylinder (56), the pressure compensation valve (55) is connected with an electromagnetic directional valve (57), the variable cylinder (56) is connected with a filter amplifier (58), the filter amplifier (58) is connected with a D/A conversion module (59), the D/A conversion module (59) is connected with a computer module (510), the computer module (510) is connected with an A/D conversion module (511), the one-way valve (53) is connected with a pressure sensor (512) through the electromagnetic directional valve (57), the pressure sensor (512) is connected with the A/D conversion module (511), the electromagnetic directional valve (57) is connected with a valve position indicator (513), and the electromagnetic directional valve (57) is connected with a two-way hydraulic cylinder actuator (514).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310221082.1A CN115875469A (en) | 2023-03-09 | 2023-03-09 | PV valve pressure relief load sensitive compensation regulation and control system for ballast |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310221082.1A CN115875469A (en) | 2023-03-09 | 2023-03-09 | PV valve pressure relief load sensitive compensation regulation and control system for ballast |
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| CN115875469A true CN115875469A (en) | 2023-03-31 |
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| CN202310221082.1A Pending CN115875469A (en) | 2023-03-09 | 2023-03-09 | PV valve pressure relief load sensitive compensation regulation and control system for ballast |
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| CN (1) | CN115875469A (en) |
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| CN117469406A (en) * | 2023-12-28 | 2024-01-30 | 泰州市君仪电气有限公司 | Marine valve assembly capable of being controlled remotely |
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