CN114987727A - Self-powered disturbance suppression device for pump valve pipe network of ship power system - Google Patents
Self-powered disturbance suppression device for pump valve pipe network of ship power system Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 43
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- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
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- KRQUFUKTQHISJB-YYADALCUSA-N 2-[(E)-N-[2-(4-chlorophenoxy)propoxy]-C-propylcarbonimidoyl]-3-hydroxy-5-(thian-3-yl)cyclohex-2-en-1-one Chemical compound CCC\C(=N/OCC(C)OC1=CC=C(Cl)C=C1)C1=C(O)CC(CC1=O)C1CCCSC1 KRQUFUKTQHISJB-YYADALCUSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
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- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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Abstract
The invention discloses a self-powered disturbance suppression device for a pump valve pipe network of a ship power system, which comprises: centrifugal pump, bypass circuit, first passive form check valve, second passive form check valve, governing valve, first piezoelectricity vibration energy collector and first power circuit management module. The centrifugal water pump is arranged on the pipeline network. One end of the bypass discharge loop is connected with a pipe network pipeline at the water outlet of the centrifugal water pump, and the other end of the bypass discharge loop is connected with water collecting equipment. The first passive check valve is arranged on the bypass circuit and close to one end of the bypass circuit. The second passive check valve is arranged on the bypass circuit and is far away from one end of the bypass circuit. The regulating valve is arranged on the bypass circuit. Therefore, the self-powered disturbance suppression device for the pump valve pipe network of the ship power system is simple and reasonable in structure, stable pressure reduction of a bypass circuit is achieved, water hammer is prevented, and running safety and self-powered monitoring of relevant parameters are improved.
Description
Technical Field
The invention relates to the field of ship power, in particular to a pump valve pipe network self-powered disturbance suppression device of a ship power system.
Background
The power system is the heart of the ocean platforms such as ships and the like, provides power, life energy, electric power and the like for the whole ocean platform, is greatly limited in space and bearing capacity compared with the land platform, and has more outstanding requirements on low noise of equipment.
The pump valve pipe network is an important component and a typical structure of a ship power system, and in order to meet the requirements of safe and reliable operation, a water pump of an ocean platform power system is usually arranged in parallel by adopting two channels or even multiple channels. But compare in land fixed platform, the platform driving system becomes operating mode comparatively frequently, causes pump valve pipe network vibration to increase by a wide margin when the water pump deviates from the design point operation. The pump is limited by inherent characteristics of water pumps such as centrifugal pumps, when the pump runs under low working conditions, the pump outlet cannot be prevented from fluctuating due to phenomena such as flow separation, particularly during the working condition switching process, the phenomenon of flow instability is more obvious, the fluctuation of the stress of a valve in a pump valve pipe network is caused, the valve can be closed abnormally even in severe conditions, the phenomena such as water hammer and the like are caused, the pump valve pipe network is obviously vibrated, and the safety and low-noise running of a power system are seriously influenced.
How to avoid the pump valve pipe network violent disturbance from happening, monitor the pump valve pipe network state to discern the abnormal vibration foreboding of pipe network, intervene early and avoid serious consequence from happening is the key point and the difficult point of current boats and ships driving system pump valve research design.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a self-energy-supply disturbance suppression device for a pump valve pipe network of a ship power system, which is simple and reasonable in structure, realizes stable pressure reduction of a bypass circuit, prevents water hammer, and improves the operation safety and self-energy-supply monitoring of related parameters.
In order to achieve the above object, the present invention provides a self-powered disturbance suppression device for a pump valve pipe network of a ship power system, comprising: centrifugal pump, bypass circuit, first passive form check valve, second passive form check valve, governing valve, first piezoelectricity vibration energy collector and first power circuit management module. The centrifugal water pump is arranged on the pipeline network. One end of the bypass circuit is connected with a pipe network pipeline at the water outlet of the centrifugal water pump, and the other end of the bypass circuit is connected with the water collecting equipment. The first passive one-way valve is arranged on the bypass circuit and close to one end of the bypass circuit. The second passive one-way valve is arranged on the bypass circuit and is far away from one end of the bypass circuit. The regulating valve is arranged on the bypass circuit and is positioned between the first passive one-way valve and the second passive one-way valve. The first piezoelectric vibration energy collector is arranged in the first passive one-way valve, and the first piezoelectric vibration energy collector can collect energy generated when pressure and flow fluctuate in the pipe and can provide electric energy. The first power circuit management module is arranged outside the first passive one-way valve and electrically connected with the first piezoelectric vibration energy collector.
In an embodiment of the invention, the self-powered disturbance suppression device for the pump valve pipe network of the ship power system further includes a second piezoelectric vibration energy collector and a second power circuit management module. The second piezoelectric vibration energy collector is arranged in the second passive one-way valve, and the second piezoelectric vibration energy collector can collect energy generated when pressure and flow fluctuate in the pipe and can provide electric energy. And the second power circuit management module is arranged outside the second passive one-way valve and is electrically connected with the second piezoelectric vibration energy collector.
In an embodiment of the present invention, the first passive check valve and the second passive check valve are arranged in opposite directions, and the first passive check valve and the second passive check valve are tesla valves or vortex diodes.
In one embodiment of the present invention, the first passive check valve is disposed along the water flowing direction for preventing backflow and water hammer, the second passive check valve is disposed along the reverse direction of the reverse water flow for smooth throttling, and the forward/reverse resistance ratio of the first passive check valve and the second passive check valve is not less than 7.
In an embodiment of the present invention, the self-powered disturbance suppression device for a pump valve pipe network of a ship power system further includes: the device comprises a first data transceiving chip, a first sensor mechanism and a first warning mechanism. The first data transceiver chip is arranged outside the first passive one-way valve and electrically connected with the first power circuit management module. The first sensor mechanism is arranged on the first passive one-way valve and is electrically connected with the first data receiving and transmitting chip and the first power circuit management module respectively. And the first warning mechanism is arranged outside the first passive one-way valve and is electrically connected with the first data receiving and transmitting chip.
In an embodiment of the present invention, the self-powered disturbance suppression device for a pump valve pipe network of a marine power system further includes: the second data transceiver chip, the second sensor mechanism and the second warning mechanism. The second data transceiver chip is arranged outside the second passive one-way valve and electrically connected with the second power circuit management module. The second sensor mechanism is arranged on the second passive one-way valve and is electrically connected with the second data transceiver chip and the second power circuit management module respectively. And the second warning mechanism is arranged outside the second passive one-way valve and is electrically connected with the second data receiving and transmitting chip.
In an embodiment of the present invention, the first sensor mechanism and the second sensor mechanism are any one or more of an acceleration sensor, a temperature sensor, a pressure sensor, and a humidity sensor.
In one embodiment of the invention, the first piezoelectric vibration energy harvester is composed of a first piezoelectric sheet and a first circuit, and the first piezoelectric sheet is in a cantilever beam structure. The first piezoelectric piece is a single-layer piezoelectric wafer. Wherein, the first piezoelectric patch is made of flexible piezoelectric material near the water flow, and the back is a metal layer. The first piezoelectric patch is obliquely arranged on the inner wall surface of the first passive one-way valve along the water flowing direction, and when the flow or pressure in the pipe fluctuates, the first piezoelectric patch swings back and forth and continuously transmits electric energy to the first power circuit management module through the first circuit.
In one embodiment of the invention, the second piezoelectric vibration energy harvester is composed of a second piezoelectric sheet and a second circuit, and the second piezoelectric sheet is in a cantilever beam structure. Wherein, the second piezoelectric piece adopts a single-layer piezoelectric piece. Wherein, the second piezoelectric patch is made of flexible piezoelectric material at the side close to the water flow, and the back surface of the second piezoelectric patch is a metal layer. The second piezoelectric sheet is obliquely arranged on the inner wall surface of the second passive one-way valve along the water flowing direction, and swings back and forth when the flow or pressure in the pipe fluctuates, and continuously transmits electric energy to the second power circuit management module through the second circuit.
In an embodiment of the present invention, the first power circuit management module and the second power circuit management module are both energy harvesting circuits, and both include a capacitor and a rectifier bridge. When the energy generated by the first piezoelectric vibration energy collector exceeds an energy threshold value or the signal of the acceleration sensor exceeds a speed threshold value, the first data transceiver chip sends an early warning signal to the first warning mechanism. When the energy generated by the second piezoelectric vibration energy collector exceeds an energy threshold value or the signal of the acceleration sensor exceeds a speed threshold value, the second data transceiver chip sends an early warning signal to the second warning mechanism.
Compared with the prior art, according to the self-powered disturbance suppression device for the pump valve pipe network of the ship power system, two passive one-way valves are oppositely arranged on the bypass circuit, and a regulating valve is combined, so that stable pressure reduction of the bypass circuit is realized, and water hammer is prevented; the piezoelectric vibration energy collector is used for collecting flow fluctuation energy in the pump valve pipe network, so that on one hand, the flow fluctuation in the pump valve pipe network is inhibited, on the other hand, the collected energy is used for supplying energy to the sensor and the data transceiver chip, the self-supply of energy is realized, and the system arrangement is simplified; when the sensor signal and the output power of the energy collector exceed a certain threshold value, an alarm signal is sent, and self-power supply sending of the abnormal vibration foreboding signal of the pump valve pipe network is achieved, so that the operation safety of the pump valve pipe network of the ship power system and self-power supply monitoring of related parameters are improved.
Drawings
Fig. 1 is a schematic layout diagram of a self-powered disturbance suppression device for a pump valve pipe network of a marine power system according to an embodiment of the invention;
fig. 2 is a schematic connection structure diagram of a first passive check valve of a self-powered disturbance suppression device for a pump valve pipe network of a marine power system according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a first piezoelectric vibration energy collector of a self-powered disturbance suppression device for a pump-valve pipe network of a marine power system according to an embodiment of the invention.
Description of the main reference numerals:
the method comprises the following steps of 1-a centrifugal water pump, 2-a bypass circuit, 3-a first passive one-way valve, 4-a second passive one-way valve, 5-a regulating valve, 6-a first power circuit management module, 7-a first data receiving and transmitting chip, 8-a first sensor mechanism, 9-a first warning mechanism, 10-a first piezoelectric plate, 11-a flexible piezoelectric material layer, 12-a piezoelectric plate metal layer and 13-the inner wall surface.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a schematic layout of a self-powered disturbance suppression device for a pump valve pipe network of a marine power system according to an embodiment of the invention. Fig. 2 is a schematic connection structure diagram of a first passive check valve 3 of a self-powered disturbance suppression device for a pump valve pipe network of a marine power system according to an embodiment of the invention. Fig. 3 is a schematic structural diagram of a first piezoelectric vibration energy collector of a self-powered disturbance suppression device for a pump-valve network of a marine power system according to an embodiment of the invention.
As shown in fig. 1 to 3, a self-powered disturbance suppression device for a marine power system pump valve pipe network according to a preferred embodiment of the present invention includes: the device comprises a centrifugal water pump 1, a bypass circuit 2, a first passive one-way valve 3, a second passive one-way valve 4, a regulating valve 5, a first piezoelectric vibration energy collector and a first power circuit management module 6. The centrifugal water pump 1 is installed on a pipeline network. One end of the bypass circuit 2 is connected with a pipe network pipeline at the water outlet of the centrifugal water pump 1, and the other end of the bypass circuit 2 is connected with a water collecting device. The first passive check valve 3 is disposed on the bypass circuit 2 and near one end of the bypass circuit 2. The second passive check valve 4 is disposed on the bypass circuit 2 and away from one end of the bypass circuit 2. The regulating valve 5 is arranged on the bypass circuit 2 and is positioned between the first passive check valve 3 and the second passive check valve 4. The first piezoelectric vibration energy collector is arranged in the first passive one-way valve 3, and the first piezoelectric vibration energy collector can collect energy of pressure and flow fluctuation in a pipe and can provide electric energy. And the first power circuit management module 6 is arranged outside the first passive one-way valve 3, and the first power circuit management module 6 is electrically connected with the first piezoelectric vibration energy collector.
In an embodiment of the invention, the self-powered disturbance suppression device for the pump valve pipe network of the ship power system further includes a second piezoelectric vibration energy collector and a second power circuit management module. The second piezoelectric vibration energy harvester is arranged in the second passive one-way valve 4, and the second piezoelectric vibration energy harvester can collect energy of pressure and flow fluctuation in the pipe and can provide electric energy. And the second power circuit management module is arranged outside the second passive one-way valve 4 and is electrically connected with the second piezoelectric vibration energy collector.
In an embodiment of the present invention, the first passive check valve 3 and the second passive check valve 4 are arranged in opposite directions, and the first passive check valve 3 and the second passive check valve 4 are tesla valves or vortex diodes, but the present invention is not limited thereto. The first passive check valve 3 and the second passive check valve 4 may be the same type of valve combination or different types of valve combinations.
In one embodiment of the present invention, the first passive check valve 3 is disposed along the water flowing direction for preventing backflow and water hammer, the second passive check valve 4 is disposed along the reverse direction of the reverse water flow for smooth throttling, and the ratio of the forward resistance to the reverse resistance of the first passive check valve 3 to the reverse resistance of the second passive check valve 4 is not less than 7.
In an embodiment of the present invention, the self-powered disturbance suppression device for a pump valve pipe network of a marine power system further includes: a first data transceiver chip 7, a first sensor mechanism 8 and a first warning mechanism 9. The first data transceiver chip 7 is disposed outside the first passive check valve 3, and the first data transceiver chip 7 is electrically connected to the first power circuit management module 6. The first sensor mechanism 8 is disposed on the first passive check valve 3, and the first sensor mechanism 8 is electrically connected to the first data transceiver chip 7 and the first power circuit management module 6, respectively. And the first warning mechanism 9 is arranged outside the first passive one-way valve 3, and the first warning mechanism 9 is electrically connected with the first data receiving and transmitting chip 7.
In an embodiment of the present invention, the self-powered disturbance suppression device for a pump valve pipe network of a marine power system further includes: the second data transceiver chip, the second sensor mechanism and the second warning mechanism. The second data transceiver chip is disposed outside the second passive check valve 4, and the second data transceiver chip is electrically connected to the second power circuit management module. The second sensor mechanism is arranged on the second passive one-way valve 4, and the second sensor mechanism is electrically connected with the second power circuit management module through the second data transceiver chip respectively. And the second warning mechanism is arranged outside the second passive one-way valve 4 and is electrically connected with the second data receiving and transmitting chip.
In an embodiment of the present invention, the first sensor mechanism 8 and the second sensor mechanism each include an acceleration sensor and a temperature sensor, but the present invention is not limited thereto, and the first sensor mechanism 8 and the second sensor mechanism may include only an acceleration sensor or a temperature sensor, or a humidity sensor and a pressure sensor, and may also include a plurality of sensors at the same time.
In one embodiment of the present invention, the first piezoelectric vibration energy harvester is composed of a first piezoelectric sheet 10 and a first circuit, and the first piezoelectric sheet 10 is in a cantilever beam structure. The first piezoelectric sheet 10 is a single-layer piezoelectric wafer. The first piezoelectric patch 10 is made of a flexible piezoelectric material on the side close to the incoming water flow, and has a metal layer on the back. Wherein, the first piezoelectric patch 10 is obliquely arranged on the inner wall surface 13 of the first passive check valve 3 along the water flowing direction, when the flow rate or pressure in the pipe fluctuates, the first piezoelectric patch 10 swings back and forth, and continuously transmits electric energy to the first power circuit management module 6 through the first circuit.
In one embodiment of the invention, the second piezoelectric vibration energy harvester is composed of a second piezoelectric sheet and a second circuit, and the second piezoelectric sheet is in a cantilever beam structure. Wherein, the second piezoelectric piece adopts a single-layer piezoelectric piece. Wherein, the second piezoelectric patch is made of flexible piezoelectric material at the side close to the water flow, and the back surface of the second piezoelectric patch is a metal layer. The second piezoelectric sheet is obliquely arranged on the inner wall surface 13 of the second passive check valve 4 along the water flowing direction, and swings back and forth when the flow or pressure in the pipe fluctuates, and continuously transmits electric energy to the second power circuit management module through the second circuit.
In an embodiment of the present invention, the first power circuit management module 6 and the second power circuit management module are both energy harvesting circuits, and both include a capacitor and a rectifier bridge. When the energy generated by the first piezoelectric vibration energy collector exceeds an energy threshold value or the signal of the acceleration sensor exceeds a speed threshold value, the first data transceiver chip 7 sends an early warning signal to the first warning mechanism 9. When the energy generated by the second piezoelectric vibration energy collector exceeds an energy threshold value or the signal of the acceleration sensor exceeds a speed threshold value, the second data transceiver chip sends an early warning signal to the second warning mechanism.
In practical application, the invention provides a scheme of utilizing a passive one-way valve in combination with a piezoelectric vibration energy collection module to prevent water hammer and other phenomena from occurring, and simultaneously adopts the piezoelectric vibration energy collection module to realize self-energy supply monitoring of flow disturbance and self-energy supply of signal transmission in a pump valve pipe network, realize multifunctional integration of disturbance inhibition and monitoring, and simplify arrangement aiming at the problems that when a pump valve pipe network of a ship power system is operated under a low working condition, the pump deviates from a design point, flow separation occurs to cause flow pressure pulsation at an outlet of the pump, so that the pump valve pipe network vibrates abnormally, and even water hammer is induced seriously, so that the safe and reliable operation of the power system is influenced.
In detail, the self-powered disturbance suppression device for the pump valve pipe network of the ship power system comprises a centrifugal water pump 1, a bypass circuit 2, a first passive one-way valve 3, a second passive one-way valve 4, a regulating valve 5, a first piezoelectric vibration energy collector, a first power circuit management module 6, a second piezoelectric vibration energy collector, a second power circuit management module, a first data transceiver chip 7, a first sensor mechanism 8, a first warning mechanism 9, a second data transceiver chip, a second sensor mechanism and a second warning mechanism. As shown in fig. 1, the above-mentioned components are two, that is, the components are divided into two paths, but the invention is not limited thereto, and any number and matching manner may be adopted. The pump valve pipe network is the important component of boats and ships driving system, and in order to adapt to boats and ships driving system variable operating condition operation demand, the water pump often operates at the low flow operating mode of skew design operating mode, and the outlet will appear pressure and flow etc. fluctuation because of flow separation etc. this moment water pump especially the operating mode switching process causes opening and close of valve easily, and then induces the water hammer, threatens driving system safe and reliable operation.
The invention collects the vibration energy in the pump valve pipe network of the ship power system, and arranges the piezoelectric patches reasonably, thereby inhibiting the pressure and flow fluctuation in the pump valve pipe network on one hand, and converting the energy disturbance generated by the pressure and flow fluctuation in the pump valve pipe network into electric energy to supply energy to the vibration sensor and the like on the other hand, and meanwhile, the invention can give an early warning to the large-amplitude disturbance and the water hammer aura, thereby improving the safety and reliability of the system.
Wherein the water pump network deployment is arranged, sets up side discharge circuit 2 at centrifugal water pump 1 export, has arranged one governing valve 5 and two passive check valves (first passive check valve 3 and second passive check valve 4) on side discharge circuit 2, like Tesla valve or vortex diode, governing valve 5 is located between two passive check valves. Two passive one-way valves on the bypass circuit 2 are arranged in opposite directions, a first passive one-way valve 3 close to one end of the water pump is arranged in the flow direction to prevent backflow and water hammer, a second passive one-way valve 4 far away from one end of the water pump is arranged in a reverse direction to play a role in stable throttling, and the forward-reverse resistance ratio of each passive one-way valve is not less than 7.
A first piezoelectric vibration energy collector is arranged on the first passive one-way valve 3 close to the centrifugal water pump 1, the first piezoelectric piece 10 is obliquely arranged on the inner wall surface 13 of the first passive one-way valve 3 along the flow direction and is the same as the flow direction of the first passive one-way valve 3, and the piezoelectric piece swings back and forth when the flow or pressure in the pipe fluctuates to continuously transmit electric energy to the first power circuit management module 6.
And a second piezoelectric vibration energy collector is arranged on the second passive one-way valve 4 far away from the centrifugal water pump 1, the second piezoelectric sheet is obliquely arranged on the inner wall surface 13 of the second passive one-way valve 4 along the flow direction, the flow direction of the second piezoelectric sheet is opposite to that of the second passive one-way valve 4, and the piezoelectric sheet swings back and forth when the flow or pressure in the pipe fluctuates and continuously transmits electric energy to the power circuit management module.
The piezoelectric vibration energy collector is composed of a piezoelectric sheet and a corresponding circuit, the piezoelectric sheet is in a cantilever beam structure, the piezoelectric material is a flexible piezoelectric material, such as polyvinylidene fluoride (PVDF), a single-layer piezoelectric wafer is adopted, the flexible piezoelectric material is arranged on the side close to the incoming current, and the metal layer is arranged on the back side. That is to say, a plurality of piezoelectric patches are respectively obliquely arranged on the inner wall surface 13 of the passive one-way valve, and the plurality of piezoelectric patches transmit electric energy to the power circuit management module through the circuit.
The power circuit management module is mainly an energy collecting circuit and comprises a capacitor, a rectifier bridge and the like, and after receiving the energy of the piezoelectric vibration energy collector, part of the energy is supplied to a sensor, such as an acceleration sensor and the like. The power circuit management module supplies energy and provides signals to the data transceiver chip, and the data transceiver chip receives signals of the sensor at the same time. When the flow disturbance in the pipeline is large, the energy generated by the piezoelectric vibration energy collector is large, the signal indicating value of the acceleration sensor is high, and when one of the piezoelectric vibration energy collector and the acceleration sensor breaks through a threshold value, a signal is sent to a control system or a warning device.
The invention adopts the piezoelectric vibration energy collector to collect the energy when the pressure and the flow fluctuate in the pipe, has the inhibiting effect on disturbance and provides energy for sensors of acceleration, speed and the like, adopts the relative arrangement form of the front one-way valve and the rear one-way valve to inhibit the water hammer and the like, and when the pressure and the flow deviate from the design working condition to be far, the disturbance is violent, the piezoelectric vibration energy collector provides larger electric energy, the acceleration is increased, the data receiving and sending chip is triggered to send signals to a control system or a warning device.
As shown in fig. 1, for the minimum flow protection of the centrifugal water pump 1, a bypass circuit 2 is provided, a first passive check valve 3, a regulating valve 5 and a second passive check valve 4 are sequentially arranged on the bypass circuit 2, wherein the flow direction of the first passive check valve 3 is the same as the normal flow direction of the bypass circuit 2, the functions of preventing water hammer and the like are mainly achieved, the flow direction of the second passive check valve 4 is opposite to the normal flow direction of the bypass circuit 2, and the main function is stable throttling.
As shown in fig. 2, a tesla valve is taken as an example of a passive one-way valve, a piezoelectric vibration energy collector is arranged in a pipeline along a flow direction, a piezoelectric sheet is obliquely arranged along the flow direction, so that the piezoelectric sheet has small influence on the flow during normal flow, the disturbance is weak, the piezoelectric sheet has small swing amplitude and low frequency, the output current is weak, and related alarm and detection are not needed during normal working conditions. When disturbance is severe, the swinging amplitude of the piezoelectric piece is increased, the disturbance inhibition effect is simultaneously realized on flow, particularly, the backflow phenomenon is inhibited, the output current is strong, power is supplied to the power circuit management module, the power circuit management module carries current meeting requirements to sensors such as acceleration and temperature after rectification and storage, the energy is supplied to the sensors, the data transceiver chip receives signals of the sensors, the data transceiver chip receives the signals of the sensors, when the related signals exceed the set allowable threshold value, the data transceiver chip sends a signal value control system and an early warning system, a vibration abnormal foreboding early warning signal is sent out, and meanwhile, abnormal vibration of a pipeline is avoided through the control system.
As shown in fig. 3, the first piezoelectric sheet 10 of the first piezoelectric vibration energy harvester is a single-layer piezoelectric wafer suitable for collecting low-frequency energy, the piezoelectric sheets are arranged obliquely in the flow direction, the flexible piezoelectric material layer 11 is arranged on the upstream side, and the piezoelectric sheet metal layer 12 is arranged on the back side.
According to the invention, the piezoelectric vibration energy collector is used for absorbing the fluctuation energy such as flow and pressure in the pump valve pipe network, so that on one hand, the fluctuation is inhibited, on the other hand, the fluctuation energy is collected to the functions of the sensor and the data transceiver chip, and the self-energy supply monitoring and abnormal vibration forewarning of the pump valve pipe network are realized. And the bypass circuit 2 adopts two passive one-way valves which are oppositely arranged, and is combined with the regulating valve 5, so that the pressure drop of the bypass circuit 2 is stably reduced, and the occurrence of water hammer is inhibited.
In a word, the pump valve pipe network self-powered disturbance suppression device for the ship power system realizes stable pressure reduction of the bypass circuit 2 and prevents water hammer by arranging two passive one-way valves on the bypass circuit 2 in a relative manner and combining the regulating valve 5; the piezoelectric vibration energy collector is used for collecting flow fluctuation energy in the pump valve pipe network, so that on one hand, the flow fluctuation in the pump valve pipe network is inhibited, on the other hand, the collected energy is used for supplying energy to the sensor and the data transceiver chip, the self-supply of energy is realized, and the system arrangement is simplified; when the sensor signal and the output power of the energy collector exceed a certain threshold value, an alarm signal is sent, and self-power supply sending of the abnormal vibration foreboding signal of the pump valve pipe network is achieved, so that the operation safety of the pump valve pipe network of the ship power system and self-power supply monitoring of related parameters are improved.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a boats and ships driving system pump valve pipe network self-power supply disturbance suppression device which characterized in that includes:
the centrifugal water pump is arranged on the pipeline network;
one end of the bypass loop is connected with a pipe network pipeline at the water outlet of the centrifugal water pump, and the other end of the bypass loop is connected with water collecting equipment;
the first passive one-way valve is arranged on the bypass circuit and is close to one end of the bypass circuit;
the second passive one-way valve is arranged on the bypass circuit and is far away from one end of the bypass circuit;
the regulating valve is arranged on the bypass circuit and is positioned between the first passive one-way valve and the second passive one-way valve;
the first piezoelectric vibration energy collector is arranged in the first passive one-way valve, can collect energy generated when pressure and flow fluctuate in the pipe and can provide electric energy; and
and the first power supply circuit management module is arranged outside the first passive one-way valve and is electrically connected with the first piezoelectric vibration energy collector.
2. The self-powered disturbance suppression device for the pump valve pipe network of the marine power system according to claim 1, further comprising:
the second piezoelectric vibration energy collector is arranged in the second passive one-way valve, can collect energy generated by pressure and flow fluctuation in the pipe and can provide electric energy; and
and the second power supply circuit management module is arranged outside the second passive one-way valve and is electrically connected with the second piezoelectric vibration energy collector.
3. The self-powered disturbance suppression device for the pump valve and pipe network of the marine power system according to claim 1, wherein the first passive check valve and the second passive check valve are arranged in opposite directions, and the first passive check valve and the second passive check valve are Tesla valves or vortex diodes.
4. The self-powered disturbance suppression device for pump valves and pipe networks of marine power systems according to claim 1, wherein the first passive check valve is arranged along a water flow direction for preventing backflow and water hammer, the second passive check valve is arranged along a reverse direction of water flow for smooth throttling, and a forward-reverse resistance ratio of the first passive check valve to the second passive check valve is not less than 7.
5. The self-powered disturbance suppression device for the pump valve pipe network of the marine power system according to claim 2, further comprising:
the first data transceiver chip is arranged outside the first passive one-way valve and is electrically connected with the first power circuit management module;
the first sensor mechanism is arranged on the first passive one-way valve and is respectively and electrically connected with the first data transceiver chip and the first power circuit management module; and
the first warning mechanism is arranged outside the first passive one-way valve and electrically connected with the first data receiving and transmitting chip.
6. The self-powered disturbance suppression device for the pump valve pipe network of the marine power system according to claim 5, further comprising:
the second data transceiver chip is arranged outside the second passive one-way valve and is electrically connected with the second power circuit management module;
the second sensor mechanism is arranged on the second passive one-way valve and is respectively and electrically connected with the second data transceiver chip and the second power circuit management module; and
and the second warning mechanism is arranged outside the second passive one-way valve and electrically connected with the second data receiving and transmitting chip.
7. The self-powered disturbance suppression device for the pump valve network of the marine power system as claimed in claim 6, wherein the first sensor mechanism and the second sensor mechanism are any one or more of an acceleration sensor, a temperature sensor, a pressure sensor and a humidity sensor. .
8. The self-powered disturbance suppression device for the pump-valve pipe network of the marine power system according to claim 1, wherein the first piezoelectric vibration energy collector is composed of a first piezoelectric sheet and a first circuit, and the first piezoelectric sheet is in a cantilever beam structure;
the first piezoelectric sheet adopts a single-layer piezoelectric wafer;
one side of the first piezoelectric patch, which is close to the incoming water flow, is a flexible piezoelectric material layer, and the back surface of the first piezoelectric patch is a piezoelectric patch metal layer;
the first piezoelectric piece is obliquely arranged on the inner wall surface of the first passive one-way valve along the water flowing direction, and swings back and forth when the flow or pressure in the pipe fluctuates, and the electric energy is continuously transmitted to the first power circuit management module through the first circuit.
9. The self-powered disturbance suppression device for the pump valve networks and the valve networks of the ship power system according to claim 2, wherein the second piezoelectric vibration energy collector is composed of a second piezoelectric patch and a second circuit, and the second piezoelectric patch is in a cantilever beam structure;
the second piezoelectric sheet adopts a single-layer piezoelectric wafer;
one side of the second piezoelectric sheet close to the water flow is provided with a flexible piezoelectric material layer, and the back surface of the second piezoelectric sheet is provided with a piezoelectric sheet metal layer;
the second piezoelectric sheet is obliquely arranged on the inner wall surface of the second passive one-way valve along the water flowing direction, and swings back and forth when the flow or pressure in the pipe fluctuates, and the electric energy is continuously transmitted to the second power circuit management module through the second circuit.
10. The self-powered disturbance suppression device for the pump valve pipe network of the marine power system according to claim 7, wherein the first power circuit management module and the second power circuit management module are both energy collection circuits and both comprise a capacitor and a rectifier bridge;
when the energy generated by the first piezoelectric vibration energy collector exceeds an energy threshold value or the signal of the acceleration sensor exceeds a speed threshold value, the first data transceiver chip sends an early warning signal to the first warning mechanism;
when the energy generated by the second piezoelectric vibration energy collector exceeds an energy threshold value or the signal of the acceleration sensor exceeds a speed threshold value, the second data transceiver chip sends an early warning signal to the second warning mechanism.
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1204482A1 (en) * | 1983-04-15 | 1986-01-15 | Dvoryanidov Aleksandr G | Ship wave propulsion device |
| JP2007218194A (en) * | 2006-02-17 | 2007-08-30 | Nidec Sankyo Corp | Pump and pump system |
| US20080170936A1 (en) * | 2005-02-21 | 2008-07-17 | Koninklijke Philips Electronics, N.V. | Micro-Fluidic Systems Based On Actuator Elements |
| CN201149003Y (en) * | 2008-01-19 | 2008-11-12 | 彭炜 | Axial flow fan surging protector |
| KR20110074092A (en) * | 2009-12-24 | 2011-06-30 | (주)인타운 | Monitoring system of ship engine and method the same |
| CN202001840U (en) * | 2011-03-23 | 2011-10-05 | 苏州工业园区泉能机电有限公司 | High-efficiency fluid conveying system |
| CN202732432U (en) * | 2012-09-10 | 2013-02-13 | 中国能源建设集团广东省电力设计研究院 | Bypass air flue control loop used for preventing vibration of low load of thermal power plant axial flow fan |
| CN105715578A (en) * | 2016-04-07 | 2016-06-29 | 核工业理化工程研究院 | Water pump overhauling and verifying device |
| CN106597914A (en) * | 2016-06-01 | 2017-04-26 | 成都为远信安电子科技有限公司 | Automotive tire pressure monitoring sensor control chip with energy collection function |
| CN206959350U (en) * | 2017-05-13 | 2018-02-02 | 广东万家乐燃气具有限公司 | A kind of check valve with spontaneous electrical function |
| CN207377821U (en) * | 2017-11-06 | 2018-05-18 | 合肥通鸿节能科技有限公司 | A kind of intelligent small water pump controller |
| CN210197011U (en) * | 2019-03-27 | 2020-03-27 | 无锡迈泰科技有限公司 | Fluid pipeline bypass structure |
| CN111412176A (en) * | 2020-04-09 | 2020-07-14 | 湖北三宁化工股份有限公司 | Turning system device of centrifugal pump and using method |
| CN112555689A (en) * | 2020-11-22 | 2021-03-26 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Multi-sensing pipeline state intelligent monitoring device |
| CN112843381A (en) * | 2021-02-28 | 2021-05-28 | 吉林大学 | Wheel type piezoelectric precision infusion pump with alarm function |
| CN213478781U (en) * | 2020-08-31 | 2021-06-18 | 大连派思燃气设备有限公司 | Automatic return-flow system with water pump |
| CN113864647A (en) * | 2021-09-27 | 2021-12-31 | 广州文冲船厂有限责任公司 | Gas backflow partition device of marine gas supply system |
| CN113958877A (en) * | 2021-11-05 | 2022-01-21 | 骏马精密工业(惠州)有限公司 | Flow monitoring waterway system |
| CN114248900A (en) * | 2021-12-09 | 2022-03-29 | 中国船舶重工集团公司第七一九研究所 | Vibration control method for diversion port structure of ship gravity flow cooling system |
| DE102021204000A1 (en) * | 2021-04-21 | 2022-03-31 | Zf Friedrichshafen Ag | Monitoring system of a ship's propulsion engine |
-
2022
- 2022-06-16 CN CN202210678392.1A patent/CN114987727B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1204482A1 (en) * | 1983-04-15 | 1986-01-15 | Dvoryanidov Aleksandr G | Ship wave propulsion device |
| US20080170936A1 (en) * | 2005-02-21 | 2008-07-17 | Koninklijke Philips Electronics, N.V. | Micro-Fluidic Systems Based On Actuator Elements |
| JP2007218194A (en) * | 2006-02-17 | 2007-08-30 | Nidec Sankyo Corp | Pump and pump system |
| CN201149003Y (en) * | 2008-01-19 | 2008-11-12 | 彭炜 | Axial flow fan surging protector |
| KR20110074092A (en) * | 2009-12-24 | 2011-06-30 | (주)인타운 | Monitoring system of ship engine and method the same |
| CN202001840U (en) * | 2011-03-23 | 2011-10-05 | 苏州工业园区泉能机电有限公司 | High-efficiency fluid conveying system |
| CN202732432U (en) * | 2012-09-10 | 2013-02-13 | 中国能源建设集团广东省电力设计研究院 | Bypass air flue control loop used for preventing vibration of low load of thermal power plant axial flow fan |
| CN105715578A (en) * | 2016-04-07 | 2016-06-29 | 核工业理化工程研究院 | Water pump overhauling and verifying device |
| CN106597914A (en) * | 2016-06-01 | 2017-04-26 | 成都为远信安电子科技有限公司 | Automotive tire pressure monitoring sensor control chip with energy collection function |
| CN206959350U (en) * | 2017-05-13 | 2018-02-02 | 广东万家乐燃气具有限公司 | A kind of check valve with spontaneous electrical function |
| CN207377821U (en) * | 2017-11-06 | 2018-05-18 | 合肥通鸿节能科技有限公司 | A kind of intelligent small water pump controller |
| CN210197011U (en) * | 2019-03-27 | 2020-03-27 | 无锡迈泰科技有限公司 | Fluid pipeline bypass structure |
| CN111412176A (en) * | 2020-04-09 | 2020-07-14 | 湖北三宁化工股份有限公司 | Turning system device of centrifugal pump and using method |
| CN213478781U (en) * | 2020-08-31 | 2021-06-18 | 大连派思燃气设备有限公司 | Automatic return-flow system with water pump |
| CN112555689A (en) * | 2020-11-22 | 2021-03-26 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Multi-sensing pipeline state intelligent monitoring device |
| CN112843381A (en) * | 2021-02-28 | 2021-05-28 | 吉林大学 | Wheel type piezoelectric precision infusion pump with alarm function |
| DE102021204000A1 (en) * | 2021-04-21 | 2022-03-31 | Zf Friedrichshafen Ag | Monitoring system of a ship's propulsion engine |
| CN113864647A (en) * | 2021-09-27 | 2021-12-31 | 广州文冲船厂有限责任公司 | Gas backflow partition device of marine gas supply system |
| CN113958877A (en) * | 2021-11-05 | 2022-01-21 | 骏马精密工业(惠州)有限公司 | Flow monitoring waterway system |
| CN114248900A (en) * | 2021-12-09 | 2022-03-29 | 中国船舶重工集团公司第七一九研究所 | Vibration control method for diversion port structure of ship gravity flow cooling system |
Non-Patent Citations (2)
| Title |
|---|
| 孟思佳;李严严;: "止回阀模拟试验台的设计", 煤炭与化工, no. 06, 26 June 2020 (2020-06-26) * |
| 韩宗真;彭贝;李罡;潘永军;陈跃生;: "泵阀调水系统管路冲击特性试验研究", 舰船科学技术, no. 13, 8 July 2020 (2020-07-08) * |
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