CN201283350Y - Ultrasonic descaling device - Google Patents
Ultrasonic descaling device Download PDFInfo
- Publication number
- CN201283350Y CN201283350Y CNU200820128804XU CN200820128804U CN201283350Y CN 201283350 Y CN201283350 Y CN 201283350Y CN U200820128804X U CNU200820128804X U CN U200820128804XU CN 200820128804 U CN200820128804 U CN 200820128804U CN 201283350 Y CN201283350 Y CN 201283350Y
- Authority
- CN
- China
- Prior art keywords
- signal input
- control circuit
- logic control
- circuit
- controllable silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 89
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 82
- 239000010703 silicon Substances 0.000 claims abstract description 82
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Images
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
An ultrasonic scale removal device relates to an ultrasonic scale removal technology. It has solved the poor problem of current ultrasonic wave descaling device job stabilization nature difference and descaling effect not good. The rectifying circuit in each unit of the magnetic resonance energy converter adopts a half-wave rectifying circuit, the positive pole of a fourth silicon controlled rectifier is connected with a power supply, the two ends of a control coil of the tenth magnetic hysteresis telescopic energy converter are respectively connected with the negative pole of the fourth silicon controlled rectifier and the positive pole of a fifth silicon controlled rectifier, and an eighth capacitor is connected between a middle tap of the control coil of the tenth magnetic hysteresis telescopic energy converter and a power ground in parallel; the control electrode of the fourth controllable silicon and the negative electrode of the fourth controllable silicon are respectively a fourth signal control input end and a fifth control signal input end, and the control electrode of the fifth controllable silicon and the negative electrode of the fifth controllable silicon are respectively a twelfth signal control input end and a thirteenth control signal input end; the four control signal input ends are respectively connected with the four signal output ends of the control signal generating circuit. It is suitable for removing scale on the surface of heat conversion equipment and pipeline.
Description
Technical field
The utility model relates to a kind of technology of ultrasonic wave scale removal.
Background technology
Ultrasonic technology is used widely in existing scale removal technical field, and the device major part of existing ultrasonic wave scale removal all adopts controllable silicon to control the flexible transducer of magnetic hysteresis and realizes,
In order to guarantee the unfailing performance of ultrasonic wave scale removal device, in the prior art, in a ultrasonic wave scale removal device, adopt the flexible transducer of two groups of magnetic hysteresis, play when the flexible transducer of one group of magnetic hysteresis breaks down, another group can work on, and then improved the reliability of ultrasonic wave scale removal device, but in the existing this ultrasonic wave scale removal device, all be to adopt a half-wave rectifying circuit to provide power supply for the control circuit of flexible transducer of two groups of magnetic hysteresis and the flexible transducer of described magnetic hysteresis simultaneously, the shortcoming that this structure exists has: the inefficiency of half-wave rectifying circuit can make full use of the energy portion of power supply; Two groups of flexible transducers of magnetic hysteresis adopt a power supply, when power supply breaks down, can cause whole plant failure; The flexible transducer of control circuit and magnetic hysteresis adopts a power supply, because the flexible transducer of magnetic hysteresis can produce pulsating current in the course of the work, influence the stability of its power supply, thereby influence and the job stability of power supply to the control circuit that is connected, and then influence the job stability of the flexible transducer of magnetic hysteresis, the job stability and the reliability of whole ultrasonic ripple scale removal device are affected, make that the effect of scale removal is bad.
The utility model content
Bad in order to solve the job stability that has ultrasonic wave scale removal device now, the problem that the scale removal effect is bad, the utility model provides ultrasonic wave scale removal device.
Ultrasonic wave scale removal device is made up of two unit, and the structure of described two unit is identical; Each unit is by rectification circuit, controllable silicon drive circuit and control signal generation circuit, wherein rectification circuit is a half-wave rectifying circuit, the output of described rectification circuit is the power supply input of controllable silicon drive circuit, controllable silicon drive circuit comprises the 4th controllable silicon, the 5th controllable silicon, the 8th electric capacity and the tenth magnetic hysteresis transducer that stretches, the 4th silicon controlled is anodal to be connected with the power supply input of controllable silicon drive circuit, described the 4th silicon controlled negative pole is connected with an end of the control coil of the flexible transducer of the tenth magnetic hysteresis, the other end of the control coil of the flexible transducer of described the tenth magnetic hysteresis is connected with the 5th silicon controlled is anodal, and described the 5th silicon controlled negative pole is connected with power supply ground; The 8th electric capacity is connected in parallel between the centre tap and power supply ground of control coil of the flexible transducer of the tenth magnetic hysteresis; The 4th silicon controlled control utmost point and the 4th silicon controlled negative pole are respectively the 4th control signal input and the 5th control signal input, and the 5th silicon controlled control utmost point and the 5th silicon controlled negative pole are respectively the 12 control signal input and the 13 control signal input; Have active frequency signal generating circuit in the control signal generation circuit, the ultrasonic wave control signal output of described control signal generation circuit connects the 4th control signal input of controllable silicon drive circuit, the 5th control signal input, the 12 control signal input and the 13 control signal input respectively.
Control coil centre tap that is connected in parallel on the flexible transducer of magnetic hysteresis in the controllable silicon drive circuit described in the utility model and the electric capacity between the power supply ground, in the process of two controllable silicon alternate conduction, alternately form charging and discharging circuit, utilize the energy of power supply fully, play energy-conservation, as to improve output power of circuit purpose.
Ultrasonic wave scale removal device of the present utility model can be applied to remove the about incrustation scale in hot conversion equipment surface, and removes steam power plant's shipyard and the ducted incrustation scale of other industry.
Description of drawings
Fig. 1 is the circuit structure diagram of the specific embodiment one a described unit.Fig. 2 is a circuit structure block diagram of the present utility model.
The specific embodiment
The specific embodiment one: the described ultrasonic wave scale removal of present embodiment device is made up of two unit, and the structure of described two unit is identical; Each unit is by rectification circuit 100, controllable silicon drive circuit 200 and control signal generation circuit 300, wherein rectification circuit 100 is half-wave rectifying circuits, the output of described rectification circuit 100 is the power supply input of controllable silicon drive circuit 200, controllable silicon drive circuit 200 comprises the 4th controllable silicon D4, the 5th controllable silicon D5, the 8th capacitor C 8 and the tenth magnetic hysteresis transducer L10 that stretches, the positive pole of the 4th controllable silicon D4 is connected with the power supply input of controllable silicon drive circuit 200, the negative pole of described the 4th controllable silicon D4 is connected with an end of the control coil of the flexible transducer L10 of the tenth magnetic hysteresis, the other end of the control coil of the flexible transducer L10 of described the tenth magnetic hysteresis is connected with the positive pole of the 5th controllable silicon D5, and the negative pole of described the 5th controllable silicon D5 is connected with power supply ground; The 8th capacitor C 8 is connected in parallel between the centre tap and power supply ground of control coil of the flexible transducer L10 of the tenth magnetic hysteresis; The control utmost point of the 4th controllable silicon D4 and the negative pole of the 4th controllable silicon D4 are respectively the 4th control signal input K4 and the 5th control signal input K5, and the control utmost point of the 5th controllable silicon D5 and the negative pole of the 5th controllable silicon D5 are respectively the 12 control signal input K12 and the 13 control signal input K13; Have active frequency signal generating circuit in the control signal generation circuit 300, the ultrasonic wave control signal output of described control signal generation circuit 300 connects the 4th control signal input K4, the 5th control signal input K5, the 12 control signal input K12 and the 13 control signal input K13 of controllable silicon drive circuit 200 respectively.
Circuit in the present embodiment is made up of two identical, separate unit of structure, and when a unit broke down, another unit can also operate as normal, has improved the reliability of work.
Control coil centre tap that is connected in parallel on the flexible transducer of magnetic hysteresis in the controllable silicon drive circuit 200 described in the present embodiment and the electric capacity between the power supply ground, in the process of two controllable silicon alternate conduction, when the 4th controllable silicon D4 conducting, when the 5th controllable silicon D5 ends, current loop is the first half and the 8th capacitor C 8 of the control coil of power supply, the 4th controllable silicon D4, the flexible transducer L10 of magnetic hysteresis, and promptly the 8th capacitor C 8 is in charged state; When the 4th controllable silicon D4 ends, in the time of the 5th controllable silicon D5 conducting, the loop of electric current is: the front and rear part and the 5th controllable silicon D5 of the control coil of the 8th capacitor C 8, the flexible transducer L10 of magnetic hysteresis, the 8th capacitor C 8 discharges this moment, promptly in the process of two controllable silicon alternate conduction, 8 alternations of the 8th capacitor C are in filling, knocking off journey, in the discharge process of the 8th capacitor C 8, produce powerful momentary pulse electric current, make the flexible device L10 that changes into of magnetic hysteresis produce vibration, reach the effect of removing incrustation scale.In the present embodiment, make full use of the energy that is used for utilizing power supply of capacitor, played energy-conservation, as to improve output power of circuit purpose.
The described ultrasonic wave scale removal of present embodiment device is not limited to use two unit, can also use a plurality of unit to realize.
The specific embodiment two: the difference of present embodiment and the specific embodiment one described ultrasonic wave scale removal device is, described controllable silicon drive circuit 200 has increased by two electric capacity and two flexible transducers of magnetic hysteresis, the control coil of the flexible transducer of two magnetic hysteresis that increase is connected in parallel with the control coil of the flexible transducer (L10) of the tenth magnetic hysteresis, the magnetic hysteresis of each increase electric capacity of connecting between centre tap and the power supply ground of control coil of transducer that stretches.
Present embodiment has increased the number of the flexible transducer of magnetic hysteresis, and three flexible transducers of magnetic hysteresis adopt a SCR control, the better effects if of scale removal.
The specific embodiment three: the difference of the present embodiment and the specific embodiment one or two described ultrasonic wave scale removal devices is, described control signal generation circuit 300 comprises ultrasonic signal generation circuit 22, trigger 23, the 16 pulse signal generator 16, the 4th twelve-pulse signal generator 42, the 49 logic control circuit 49, the 38 logic control circuit 38, the 39 logic control circuit 39, the 28 power intensifier 28, the 29 power intensifier 29, the 24 transformer T24, the 25 transformer T25, the signal output part of ultrasonic signal generation circuit 22 connects the signal input part of trigger 23 respectively, second signal input part of the 38 logic control circuit 38 and the 3rd control signal input of the 39 logic control circuit 39, the forward signal output of described trigger 23 connects the 4th signal input part of the 38 logic control circuit 38, the repercussion signal output part of described trigger 23 connects first signal input part of the 39 logic control circuit 39, the 3rd signal input part of the 38 logic control circuit 38 and second signal input part of the 39 logic control circuit 39 are connected high level, the signal output part of the 16 pulse signal generator 16, the signal output part of the 4th twelve-pulse signal generator 42 connects two signal input parts of the 49 logic control circuit 49 respectively, the signal output part of described the 49 logic control circuit 49 connects first signal input part of the 38 logic control circuit 38 and the 4th signal input part of the 39 logic control circuit 39 respectively, the signal output part of described the 38 logic control circuit 38 connects the signal input part of the 28 power intensifier 28, two signal output parts of described the 28 power intensifier 28 connect the two ends of the primary coil of the 24 transformer T24 respectively, the two ends of the secondary coil of described the 24 transformer T24 connect the 12 control signal input K12 and the 13 control signal input K13 of controllable silicon drive circuit respectively, the signal input part that the signal output part of the 39 logic control circuit 39 connects the 29 power intensifier 29 connects, two signal output parts of described the 29 power intensifier 29 connect the two ends of the primary coil of the 25 transformer T25 respectively, the two ends of the secondary coil of described the 25 transformer T25 connect the 4th control signal input K4 and the 5th control signal input K5 of controllable silicon drive circuit 200 respectively, the 38 logic control circuit 38 and the 39 logic control circuit 39 are four input AND circuits, and the 49 logic control circuit 49 is two input AND circuits.
The forward output of the trigger 23 in the present embodiment is connected control the 4th controllable silicon D4, the 38 logic control circuit 38 of the 5th controllable silicon D5 conducting, a signal output part of the 39 logic control circuit 39 respectively with the negative sense output, and then guarantee that the 4th controllable silicon D4, the 5th controllable silicon D5 can alternate conduction, guarantee that circuit works reliably.
In the present embodiment, controllable silicon drive circuit 200, the Drive and Control Circuit that is the flexible transducer of magnetic hysteresis adopts independent power supply, make the pulse current that controllable silicon drive circuit 200 produces in the course of the work, between control signal generation circuit 300 and the controllable silicon drive circuit 200 by having the transformer (T24 of electric buffer action, T25) connect, realized the fully isolation of controllable silicon drive circuit 200 with the working power of control signal generation circuit 300, prevented to influence the stability of the working power of control signal generation circuit 300 effectively owing to the pulsating current that produces in controllable silicon drive circuit 200 courses of work, improved the reliability and the service life of control signal generation circuit 300, and then the job stability and the service life of having improved whole scale removal device.
The specific embodiment four: the difference of present embodiment and the specific embodiment three described ultrasonic wave scale removal devices is, described control signal generation circuit 300 also comprises homophase device the 32, the 34 logic control circuit the 34, the 36 logic control circuit 36 and the 50 logic control circuit 50, and the 24 transformer T24 comprises that is also detected a secondary coil, and the 25 transformer T25 comprises that is also detected a secondary coil; The signal output part of homophase device 32 connects the 3rd signal input part of the 38 logic control circuit 38 and second signal input part of the 39 logic control circuit 39 respectively, the two ends of the detection secondary coil of the 24 transformer T24 connect the end of primary coil of described the 24 transformer T24 and 34 1 signal input parts of the 34 logic control circuit respectively, another signal input part of described the 34 logic control circuit 34 connects the reverse signal output of trigger 23,34 signal output part of described the 34 logic control circuit connects a signal input part of the 50 logic control circuit 50, another signal input part of described the 50 logic control circuit 50 connects the signal output part of the 36 logic control circuit 36, the signal output part of described the 50 logic control circuit 50 connects the signal input part of homophase device 32, the two ends of the detection secondary coil of the 25 transformer T25 connect the end of primary coil of described the 25 transformer T25 and a signal input part of the 36 logic control circuit 36 respectively, another signal input part of described the 36 logic control circuit 36 connects the forward signal output of trigger 23, the 34 logic control circuit 34 and the 36 logic control circuit 36 are NOR gate circuits, and the 50 logic control circuit 50 is two input AND circuits.
Increased the feedback function of output signal in the described control signal generation of the present embodiment circuit 300, whether the signal that can detect two transformer outputs in the course of the work in real time meets the requirements, promptly whether Shu Chu two SCR control signals are alternately effectively, when abnormal conditions, can in time adjust the SCR control signal, guarantee controllable silicon drive circuit 200 operate as normal.
The specific embodiment four: the difference of present embodiment and the specific embodiment two described ultrasonic wave scale removal devices is, it is that fo/k1, cycle are the pulse signal of T1 that described the 16 pulse signal generator 16 produces frequency, it is that fo/k2, cycle are the pulse signal of T2 that the 4th twelve-pulse signal generator 42 produces frequency, k1=1 wherein, k2=4,8 or 16, and 1/2fo〉T2+T3.
Claims (7)
1, ultrasonic wave scale removal device is characterized in that it comprises two unit, and the structure of described two unit is identical; Each unit is by rectification circuit (100), controllable silicon drive circuit (200) and control signal generation circuit (300) are formed, wherein rectification circuit (100) is a half-wave rectifying circuit, the output of described rectification circuit (100) is the power supply input of controllable silicon drive circuit (200), controllable silicon drive circuit (200) comprises the 4th controllable silicon (D4), the 5th controllable silicon (D5), the 8th electric capacity (C8) and the tenth magnetic hysteresis transducer (L10) that stretches, the positive pole of the 4th controllable silicon (D4) is connected with the power supply input of controllable silicon drive circuit (200), the negative pole of described the 4th controllable silicon (D4) is connected with an end of the control coil of the flexible transducer (L10) of the tenth magnetic hysteresis, the other end of the control coil of the flexible transducer (L10) of described the tenth magnetic hysteresis is connected with the positive pole of the 5th controllable silicon (D5), and the negative pole of described the 5th controllable silicon (D5) is connected with power supply ground; The 8th electric capacity (C8) is connected in parallel between the centre tap and power supply ground of control coil of the flexible transducer (L10) of the tenth magnetic hysteresis; The negative pole of the control utmost point of the 4th controllable silicon (D4) and the 4th controllable silicon (D4) is respectively the 4th control signal input (K4) and the 5th control signal input (K5), and the negative pole of the control utmost point of the 5th controllable silicon (D5) and the 5th controllable silicon (D5) is respectively the 12 control signal input (K12) and the 13 control signal input (K13); Have active frequency signal generating circuit in the control signal generation circuit (300), the ultrasonic wave control signal output of described control signal generation circuit (300) connects the 4th control signal input (K4), the 5th control signal input (K5), the 12 control signal input (K12) and the 13 control signal input (K13) of controllable silicon drive circuit (200) respectively.
2, ultrasonic wave scale removal device according to claim 1, it is characterized in that described rectification circuit (100) is made up of commutation diode (D2) and commutation capacitor (C3), the positive pole of commutation diode (D2) is the power supply signal input, and the negative pole of described commutation diode (D2) is the power supply input of controllable silicon drive circuit (200) for the power supply signal output, and commutation capacitor (C3) is connected in parallel between the power output end and power supply ground of commutation diode (D2).
3, ultrasonic wave scale removal device according to claim 1 is characterized in that it also comprises a plurality of unit.
4, ultrasonic wave scale removal device according to claim 1, it is characterized in that, described controllable silicon drive circuit (200) has increased by two electric capacity and two flexible transducers of magnetic hysteresis, the control coil of the flexible transducer of two magnetic hysteresis that increase is connected in parallel with the control coil of the flexible transducer (L10) of the tenth magnetic hysteresis, the magnetic hysteresis of each increase electric capacity of connecting between centre tap and the power supply ground of control coil of transducer that stretches.
5, ultrasonic wave scale removal device according to claim 1, it is characterized in that, described control signal generation circuit (300) comprises ultrasonic signal generation circuit (22), trigger (23), the 16 pulse signal generator (16), the 4th twelve-pulse signal generator (42), the 49 logic control circuit (49), the 38 logic control circuit (38), the 39 logic control circuit (39), the 28 power intensifier (28), the 29 power intensifier (29), the 24 transformer (T24), the 25 transformer (T25), the signal output part of ultrasonic signal generation circuit (22) connects the signal input part of trigger (23) respectively, second signal input part of the 38 logic control circuit (38) and the 3rd control signal input of the 39 logic control circuit (39), the forward signal output of described trigger (23) connects the 4th signal input part of the 38 logic control circuit (38), the repercussion signal output part of described trigger (23) connects first signal input part of the 39 logic control circuit (39), the 3rd signal input part of the 38 logic control circuit (38) and second signal input part of the 39 logic control circuit (39) are connected high level, the signal output part of the 16 pulse signal generator (16), the signal output part of the 4th twelve-pulse signal generator (42) connects two signal input parts of the 49 logic control circuit (49) respectively, the signal output part of described the 49 logic control circuit (49) connects first signal input part of the 38 logic control circuit (38) and the 4th signal input part of the 39 logic control circuit (39) respectively, the signal output part of described the 38 logic control circuit (38) connects the signal input part of the 28 power intensifier (28), two signal output parts of described the 28 power intensifier (28) connect the two ends of the primary coil of the 24 transformer (T24) respectively, the two ends of the secondary coil of described the 24 transformer (T24) connect the 12 control signal input (K12) and the 13 control signal input (K13) of controllable silicon drive circuit respectively, the signal input part that the signal output part of the 39 logic control circuit (39) connects the 29 power intensifier (29) connects, two signal output parts of described the 29 power intensifier (29) connect the two ends of the primary coil of the 25 transformer (T25) respectively, the two ends of the secondary coil of described the 25 transformer (T25) connect the 4th control signal input (K4) and the 5th control signal input (K5) of controllable silicon drive circuit (200) respectively, the 38 logic control circuit (38) and the 39 logic control circuit (39) are four input AND circuits, and the 49 logic control circuit (49) is two input AND circuits.
6, ultrasonic wave scale removal device according to claim 1, it is characterized in that, described control signal generation circuit (300) also comprises homophase device (32), the 34 logic control circuit (34), the 36 logic control circuit (36) and the 50 logic control circuit (50), and the 24 transformer (T24) comprises that is also detected a secondary coil, and the 25 transformer (T25) comprises that is also detected a secondary coil; The signal output part of homophase device (32) connects the 3rd signal input part of the 38 logic control circuit (38) and second signal input part of the 39 logic control circuit (39) respectively, the two ends of the detection secondary coil of the 24 transformer (T24) connect the end of primary coil of described the 24 transformer (T24) and (34) signal input parts of the 34 logic control circuit respectively, another signal input part of described the 34 logic control circuit (34) connects the reverse signal output of trigger (23), the signal output part of (34) of described the 34 logic control circuit connects a signal input part of the 50 logic control circuit (50), another signal input part of described the 50 logic control circuit (50) connects the signal output part of the 36 logic control circuit (36), the signal output part of described the 50 logic control circuit (50) connects the signal input part of homophase device (32), the two ends of the detection secondary coil of the 25 transformer (T25) connect the end of primary coil of described the 25 transformer (T25) and a signal input part of the 36 logic control circuit (36) respectively, another signal input part of described the 36 logic control circuit (36) connects the forward signal output of trigger (23), the 34 logic control circuit (34) and the 36 logic control circuit (36) are NOR gate circuits, and the 50 logic control circuit (50) is two input AND circuits.
7, ultrasonic wave scale removal device according to claim 1, it is characterized in that, it is that fo/k1, cycle are the pulse signal of T1 that described the 16 pulse signal generator (16) produces frequency, it is that fo/k2, cycle are the pulse signal of T2 that the 4th twelve-pulse signal generator (42) produces frequency, k1=1 wherein, k2=4,8 or 16, and 1/2fo〉T2+T3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU200820128804XU CN201283350Y (en) | 2008-11-13 | 2008-11-13 | Ultrasonic descaling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU200820128804XU CN201283350Y (en) | 2008-11-13 | 2008-11-13 | Ultrasonic descaling device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201283350Y true CN201283350Y (en) | 2009-08-05 |
Family
ID=40948335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU200820128804XU Expired - Fee Related CN201283350Y (en) | 2008-11-13 | 2008-11-13 | Ultrasonic descaling device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201283350Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102225390A (en) * | 2011-03-29 | 2011-10-26 | 上海兴全电力技术有限公司 | Full-automatic ultrahigh-power ultrasonic anti-scaling and de-scaling device |
-
2008
- 2008-11-13 CN CNU200820128804XU patent/CN201283350Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102225390A (en) * | 2011-03-29 | 2011-10-26 | 上海兴全电力技术有限公司 | Full-automatic ultrahigh-power ultrasonic anti-scaling and de-scaling device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102804586A (en) | Converter and method for extracting maximum power from piezo vibration harvester | |
CN106140592A (en) | Digital ultrasonic generator and auto frequency locking method thereof | |
CN104601027A (en) | Tandem double flyback quasi resonant converter suitable for neutral point clamped direct current bus | |
CN103715941B (en) | A kind of many cantilever beams PZT (piezoelectric transducer) circuit | |
CN203814013U (en) | LED driving circuit adopting single-end zero crossing detection | |
CN108429472B (en) | A kind of self-starting of power generation with marine energy and self-powered energy collection circuit | |
CN103887987A (en) | Multiple voltage-multiplying high-gain high-frequency rectification isolation converter based on switched capacitor | |
CN201283350Y (en) | Ultrasonic descaling device | |
CN203883673U (en) | Improved Z-source boost DC-DC converter | |
CN102122891A (en) | Absorption feedback circuit for transformer leakage inductance energy | |
CN103490493A (en) | Passive piezoelectric type energy capture circuit | |
CN202997953U (en) | Capacitor energy-storage type silicon-controlled switch power source | |
CN102723883A (en) | Capacitor energy-storage type silicon-controlled switch power supply | |
CN205983286U (en) | Power optimizer based on SM72445 | |
CN204517693U (en) | A kind of two flyback quasi resonant convertor of series connection being applicable to neutral-point-clamped DC bus | |
CN207592350U (en) | A kind of portable supersonic cleaning device for service sink | |
CN203554334U (en) | Low-harmonic soft starter | |
CN203761252U (en) | High-power high-frequency power supply driving device | |
CN207053403U (en) | The low-power dissipation high pressure power module of Geiger Miller detector | |
CN206250999U (en) | Many level export full-bridge inverter | |
CN202110224U (en) | Joint voltage experiment tester | |
CN200979590Y (en) | A constant-current discharging circuit for a feedback battery | |
CN203747687U (en) | Power converter circuit with open-loop dynamic impedance self-matching function | |
CN205943446U (en) | Bee calling organ drive circuit and wearable equipment | |
CN106877699A (en) | A kind of Novel blood pressure-reducing formula synchronous rectifying switching power source |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20091214 |