CN105921282A

CN105921282A - High-efficiency-energy high-voltage pulse power supply

Info

Publication number: CN105921282A
Application number: CN201610449399.0A
Authority: CN
Inventors: 陈文臣; 李呈森
Original assignee: ZHEJIANG LIANCHENG ENVIRONMENT SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG LIANCHENG ENVIRONMENT SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2016-06-21
Filing date: 2016-06-21
Publication date: 2016-09-07

Abstract

The invention discloses a high-efficiency-energy high-voltage pulse power supply. The high-efficiency-energy high-voltage pulse power supply comprises a rectifier, an inverter and a transformer; the inverter includes two input electric brushes, two output electric brushes and two ejector rods of a motor; a rotating shaft of the motor is provided with a commutator and two output electrodes; the commutator is a lantern fixed on the rotating shaft and rotating with the rotating shaft; the commutator is provided with a pair of electric conducting blocks forming an angle of 180 degrees; the two input electric brushes are contacted with the commutator, and are oppositely arranged; the two electric conducting blocks are respectively conducted with the two output electrodes; the two output electric brushes are respectively conducted with the two output electrodes; the polarities of the two input electric brushes are consistent in use; but, the commutator continuously rotates along with the motor, so that the electric conducting blocks are continuously contacted with different input electrodes to cause continuous polarity change of the output voltage on the output electrodes, and the conversion from alternating current to direct current is finished; and the inverter with the mode dose not completely use electronic devices.

Description

Dynamical high-voltage pulse power source

Technical field

The present invention relates to technical field of electrostatic dust collection, especially relate to a kind of power supply for electrostatic precipitation.

Background technology

The operation principle of electrostatic precipitator is to utilize HVDC non-uniform electric field to make the gas molecule in flue gas ionize, produce a large amount of electronics and ion, move to the two poles of the earth under the effect of electric field force, encountering the dust granules in air-flow in moving process makes it charged, Charged separates with air-flow under electric field force effect and moves to opposite polarity pole plate or polar curve, Charged arrives pole plate or is adsorbed on pole plate or polar curve by electrostatic force during polar curve, makes dust fall into ash bucket by rapping apparatus so that gas cleaning.

General electrostatic precipitator is equipped with a dynamical high-voltage pulse power source, this power supply all includes the most several part, alternating current is become galvanic reorganizer by one, the inverter of one frequency alternating current that the unidirectional current that reorganizer exports becomes job demand, also has the transformator for the alternating current liter that inverter exports presses to job demand voltage.

Conventional inverter is all to utilize the electronic devices and components such as metal-oxide-semiconductor field effect transistor or IGBT igbt to realize the commutation of electric current, in the case of power is relatively big, this inverting can cause bigger energy loss, and components and parts heat can be caused too high, so that the heat dissipation equipment of a lot of auxiliary.It is therefore desirable to improved.

Summary of the invention

The present invention is directed to deficiency of the prior art, it is provided that dynamical high-voltage pulse power source, greatly reduce energy consumption, it is to avoid the heat of components and parts is too high.

nullIn order to solve above-mentioned technical problem，The present invention is addressed by following technical proposals: dynamical high-voltage pulse power source，Including commutator、Inverter and transformator，Described inverter includes that two, motor inputs brush、Two output brushes and two push rods，A diverter and two output electrodes it are provided with in the rotating shaft of described motor，Described diverter is one and is fixed in described rotating shaft the collar rotated together with described rotating shaft，Described diverter is provided with the conducting block being mutually 180 degree a pair，Two described input brushes contact with described diverter，And two described input brushes are oppositely arranged，Two described conducting blocks turn on two described output electrodes respectively，Two described output brushes are conducted with two described output electrodes respectively，During use，Polarity on each input brush is consistent，But diverter is constantly rotating along with motor，So conducting block ceaselessly contacts with different input electrodes，The polarity of output voltage in output electrode is caused ceaselessly to change，This completes and alternating current is become unidirectional current，Adopt inverter in this way，Entirely without using electronic device，Whole losses is exactly only the loss of line loss and motor，So substantially increasing Energy Efficiency Ratio.Additionally, when moving to conducting block marginal position in order to avoid input brush, contact area between conducting block and input brush is gradually reduced, the resistance causing circuit can be gradually increased, it is provided with groove on described diverter, described conducting block is slidably connected in described groove, it is provided with spring bottom described conducting block, it is positioned at the position below described input brush on described conducting block and is provided with the projection that insulant is made, when described diverter turns to certain angle, described push rod props up described projection, under the effect of counteracting force, described conducting block moves towards described inside grooves.At this time, the Contact between conducting block and input brush disconnects.

In technique scheme, it is preferred that described projection is positioned at the centre position of described conducting block circumference, when described push rod and described projection contacts, described input electrode is positioned at the marginal position of described conducting block.This setup, it is ensured that when push rod and projection contacts, the counteracting force that projection is subject to is unidirectional with groove, it is ensured that conducting block toward inside grooves move time smooth and easy.

In technique scheme, concrete, described commutator includes diode and relay, the live wire of described extraneous power supply coiler part with described diode and described relay successively is connected on zero line after connecting, described relay has a normal open switch and a normally closed switch, the two ends that described normal open switch intersects with described normally closed switch are connected, the live wire of described extraneous power supply switchs one end with described relay normally open and is connected, the described relay normally open switch other end is connected with described inverter, and the described extraneous zero line of power supply is connected with the zero line of inverter.During use, when extraneous power supply can pass through diode, the electric current forward normal open switch by relay, when extraneous power supply can not pass through diode, electric current is back through the normally closed switch of relay, and this just by the alternating current of both direction, becomes the unidirectional current in a direction.Using the commutator of this structure, in addition to controlling a diode of side, do not use other electronic original part, and the diode of this control side is not over bigger electric current, even if therefore in the case of high power, loss is not the biggest.

In technique scheme, it is preferred that be provided with the electric capacity for filtering between the other end and the described zero line of described relay switch.

Compared with prior art, the invention has the beneficial effects as follows: what commutator input came is unidirectional current, that is the polarity that input brush powers on is all fixing, but conducting block is ceaselessly along electric machine rotation, so conducting block can contact from different input brushes, cause can deriving on output brush alternating current.Adopting inverter in this way, entirely without using electronic device, whole losses is exactly only the loss of line loss and motor, so substantially increasing Energy Efficiency Ratio.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the present invention.

Fig. 2 is the schematic diagram of commutator.

Fig. 3 is the schematic diagram of inverter.

Fig. 4 be one state of brush and diverter coordinate schematic diagram.

Fig. 5 be brush with another state of diverter coordinate schematic diagram.

Detailed description of the invention

Below in conjunction with detailed description of the invention and accompanying drawing, the present invention is described in further detail.

Seeing Fig. 1, dynamical high-voltage pulse power source, including commutator 1, inverter 2 and transformator 3.

Seeing Fig. 2, commutator 1 includes diode D, relay K T and electric capacity C, is controlling side, and the live wire of extraneous power supply coil with diode D and relay K T successively connects with zero line after being connected again.Described relay K T has an a normal open switch KT1 and normally closed switch KT2, described normal open switch KT1 and is connected with described normally closed switch KT2 two ends intersection.In working side, the live wire of described extraneous power supply is connected with described relay K T normal open switch KT1 one end, and the described relay K T normal open switch KT1 other end is connected with described inverter 2, and the described extraneous zero line of power supply is connected with the zero line of inverter 2.

See Fig. 3, inverter 2 includes that 21 two, motor inputs brush 2a, 2b, two output brushes 23, 24 and two push rods 41, 42, a diverter 22 and two output electrodes 2c it are provided with in the rotating shaft of motor 21, 2d, diverter 22 is one and is fixed on the collar rotated together with rotating shaft in rotating shaft, diverter 22 is provided with the conducting block 221 being mutually 180 degree a pair, 222, two input brush 2a, 2b contacts with diverter 22, and two input brush 2a, 2b is oppositely arranged, two conducting blocks 221, 222 respectively with two output electrodes 2c, 2d turns on, two output electrodes 2c, 2d respectively with two output brushes 23, 24 are conducted.Adopting in this way, inverter does not use any electronic devices and components, and therefore maximum possible avoids energy loss.

See Fig. 4 and Fig. 5, groove 22a it is provided with on diverter 22, conducting block 221,222 is slidably connected in groove 22a, it is provided with spring 22b bottom conducting block 221,222, it is positioned at the position below input brush 2a, 2b on conducting block 221,222 and is provided with the protruding 22c that insulant is made, projection is positioned at the centre position of conducting block circumference, when diverter 22 turns to certain angle, push rod 41,42 props up protruding 22c, at this moment input electrode is positioned at the marginal position of conducting block, under the effect of counteracting force, conducting block 221,222 is internal mobile towards groove 22a.Connection moment between input brush and conducting block disconnects.

During use, when extraneous power supply can pass through diode, the electric current forward normal open switch by relay, when extraneous power supply can not pass through diode, electric current is back through the normally closed switch of relay, and this just by the alternating current of both direction, becomes the unidirectional current in a direction.Again after the filtering of electric capacity C, output is to two input brushes of inverter, input brush by with the contacting of conducting block, electric energy is delivered to output brush, owing to electrode is constantly rotating, conducting block ceaselessly contacts from different input brushes, hence in so that the electric current on output brush constantly changes, this just will complete and unidirectional current is become alternating current.The frequency of alternating current is limited by the rotating speed of motor.

Claims

nullThe most dynamical high-voltage pulse power source，Including commutator、Inverter and transformator，It is characterized in that: described inverter includes that two, motor inputs brush、Two output brushes and two push rods，A diverter and two output electrodes it are provided with in the rotating shaft of described motor，Described diverter is one and is fixed in described rotating shaft the collar rotated together with described rotating shaft，Described diverter is provided with the conducting block being mutually 180 degree a pair，Two described input brushes contact with described diverter，And two described input brushes are oppositely arranged，Two described conducting blocks turn on two described output electrodes respectively，Two described output brushes are conducted with two described output electrodes respectively，It is provided with groove on described diverter，Described conducting block is slidably connected in described groove，It is provided with spring bottom described conducting block，It is positioned at the position below described input brush on described conducting block and is provided with the projection that insulant is made，When described diverter turns to certain angle，Described push rod props up described projection，Under the effect of counteracting force，Described conducting block moves towards described inside grooves.
Dynamical high-voltage pulse power source the most according to claim 1, it is characterised in that: described projection is positioned at the centre position of described conducting block circumference, and when described push rod and described projection contacts, described input electrode is positioned at the marginal position of described conducting block.
Dynamical high-voltage pulse power source the most according to claim 1, it is characterized in that: described commutator includes diode and relay, the live wire of described extraneous power supply coiler part with described diode and described relay successively is connected on zero line after connecting, described relay has a normal open switch and a normally closed switch, the two ends that described normal open switch intersects with described normally closed switch are connected, the live wire of described extraneous power supply switchs one end with described relay normally open and is connected, the described relay normally open switch other end is connected with described inverter, the described extraneous zero line of power supply is connected with the zero line of inverter.
Dynamical high-voltage pulse power source the most according to claim 3, it is characterised in that: it is provided with the electric capacity for filtering between the other end and the described zero line of described relay switch.