CN104190548A - High-voltage pulse power supply system for electrostatic dust collector - Google Patents
High-voltage pulse power supply system for electrostatic dust collector Download PDFInfo
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- CN104190548A CN104190548A CN201410512554.XA CN201410512554A CN104190548A CN 104190548 A CN104190548 A CN 104190548A CN 201410512554 A CN201410512554 A CN 201410512554A CN 104190548 A CN104190548 A CN 104190548A
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Abstract
The invention discloses a high-voltage pulse power supply system for an electrostatic dust collector. The system comprises a basic power circuit, and at least two groups of identical pulse generating circuits connected in series mutually, wherein the power supply end of each of the pulse generating circuits is connected with the output end of the basic power circuit; the output end of the basic power circuit is connected with a load; when no pulse voltage is output by the power supply ends of the pulse generating circuits, the basic power circuit outputs basic voltage to the load; when the power supply ends of the pulse generating circuits output the pulse voltage, the pulse voltage and the basic voltage are superimposed and then output to the load. Compared with the prior art, through the high-voltage pulse power supply system provided by the invention, accumulated voltage of a dust layer is reduced, the system is prevented from being stricken through, the back corona is prevented from generating, the dust collecting efficiency is improved, and the energy consumption is lowered.
Description
Technical field
The present invention relates to power supply technique field, more specifically, relate to a kind of electrostatic precipitator high-voltage pulse electric power system.
Background technology
Along with industrial development, as the device that effectively removes solid particle in industrial waste gas, electrostatic precipitator is widely used in each industrial department.The dust-cleaning principle of electrostatic precipitator is, the high voltage electric field that utilizes anodal dust collecting electrode and negative pole corona discharge electrode to produce makes the dust charge negative electricity in flue gas stream, the dust of bear electricity to dust collecting electrode motion, deposits to collecting polar plate place under electric field force effect, thereby realizes separated with flue gas stream.Conventionally, the relation between efficiency of dust collection and voltage meets formula: efficiency of dust collection=f (crest voltage * average voltage * dust size), that is to say, and dust size is less, lower than resistance, and charged needed voltage is larger.
And existing electrostatic precipitator is passed through DC power supply, rising gradually along with voltage, be deposited on dust relatively higher than resistance on collecting polar plate and be difficult to discharge electric charge, Charged is below repelled, make to form between dust layer larger electric potential gradient.And along with the accumulation of dust, the voltage of dust collecting electrode dust layer increases gradually, when the voltage of dust layer reaches certain value, dust granules will puncture dust layer, produces and the opposite polarity anti-corona of corona discharge electrode, not only cause dust granules to depart from dust collecting electrode, efficiency of dust collection is reduced, and with the dust granules of cation in corona discharge electrode motion process, in and the anion that produces of corona discharge electrode, thereby reduced the voltage of electric field of electrostatic precipitator, caused energy consumption higher.
Summary of the invention
In view of this, the electrostatic precipitator high-voltage pulse electric power system that the embodiment of the present invention provides, not only can avoid puncturing, and prevents the generation of back corona phenomenon, improves efficiency of dust collection, and can reduce energy consumption.
The electrostatic precipitator high-voltage pulse electric power system that the embodiment of the present invention provides, comprising: fundamental power supply circuit, the pulse generating circuit of and mutual series connection identical with at least two groups; The feeder ear of described pulse generating circuit connects the output of described fundamental power supply circuit, and the output of described fundamental power supply circuit connects load; When the feeder ear of described pulse generating circuit is not during voltage pulse output, described fundamental power supply circuit is to described load output basic voltage, when the feeder ear of described pulse generating circuit is exported described pulse voltage, the backward described load output of described pulse voltage and the stack of described basic voltage.
Preferably, described pulse generating circuit comprises: low-voltage dc power supply, switching tube, energy-storage travelling wave tube and pulse transformer; Wherein, one end of described switching tube is connected with described low-voltage dc power supply, and the other end is connected with the earth terminal of described low-voltage dc power supply; Described energy-storage travelling wave tube one end connects described switching tube, and the other end connects the one end on the former limit of described pulse transformer, the other end ground connection on the former limit of described pulse transformer; Described pulse transformer secondary is connected with the voltage input end of described fundamental power supply circuit.
Preferably, described pulse generating circuit also comprises: the reverse absorbing circuit in parallel with described energy-storage travelling wave tube, and described reverse absorbing circuit is by absorbing circuit parallel with one another and two-way admittance the electric circuit constitute; Described absorbing circuit is comprised of resistance, electric capacity and one-way conduction element, after described resistance and described Capacitance parallel connection, connects with described one-way conduction element, and the conducting direction when conducting direction of described one-way conduction element is closed with described switching tube is consistent; Described turning circuit is comprised of the bi-directional voltage stabilizing pipe of mutually connecting.
Preferably, described pulse generating circuit also comprises: be connected in parallel on the Saturationproof circuit at two ends, the former limit of described pulse transformer, described Saturationproof circuit comprises inductance and the power supply of mutual series connection.
Preferably, described pulse generating circuit also comprises: be connected in parallel on the filter element between described low-voltage dc power supply and described switching tube.
Preferably, described pulse generating circuit also comprises: be connected on the anti-back flow circuit between described low-voltage dc power supply input and described energy-storage travelling wave tube, for electric current one-way conduction when described energy-storage travelling wave tube discharges.
Preferably, described pulse generating circuit is 10 groups
Preferably, also comprise the overvoltage crowbar in parallel with described load.
From above technical scheme, the electrostatic precipitator high-voltage pulse electric power system that the embodiment of the present invention provides, comprises fundamental power supply circuit, the pulse generating circuit of and mutual series connection identical with at least two groups; The feeder ear of pulse generating circuit connects the output of fundamental power supply circuit, and the output of fundamental power supply circuit connects load.When pulse generating circuit is not under power supply state, fundamental power supply circuit provides basic voltage for load, and when pulse generating circuit is powered, the voltage that power-supply system provides for load is pulse voltage and the basic voltage stack voltage sum afterwards of pulse generating circuit output.Compared with prior art, crest voltage is pulse voltage, when dust deposit is after dust collecting electrode, the voltage of electrostatic precipitator reduces, the environment not only providing for dust electric discharge, also be provided enough discharge times simultaneously, thereby can reduce the accumulation voltage of dust layer, not only can avoid puncturing, prevent the generation of back corona phenomenon, improve efficiency of dust collection, and can reduce energy consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.Shown in accompanying drawing, above-mentioned and other object of the present invention, Characteristics and advantages will be more clear.In whole accompanying drawings, identical Reference numeral is indicated identical part.Deliberately by actual size equal proportion convergent-divergent, do not draw accompanying drawing, focus on illustrating purport of the present invention.
The circuit block diagram of the electrostatic precipitator high-voltage pulse electric power system that Fig. 1 provides for the embodiment of the present invention;
The voltage oscillogram that Fig. 2 exports for the electrostatic precipitator high-voltage pulse electric power system that the embodiment of the present invention provides;
The circuit block diagram of the pulse generating circuit that Fig. 3 provides for the embodiment of the present invention;
The equivalent circuit diagram of the pulse generating circuit that Fig. 4 provides for the embodiment of the present invention;
Electric current, voltage oscillogram that Fig. 5 exports for the pulse generating circuit that the embodiment of the present invention provides;
The second embodiment circuit block diagram of the pulse generating circuit that Fig. 6 provides for the embodiment of the present invention;
The circuit connection diagram of the pulse generating circuit that Fig. 7 provides for the embodiment of the present invention;
The circuit diagram of the electrostatic precipitator high-voltage pulse electric power system that Fig. 8 provides for the embodiment of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Conventionally, when back corona phenomenon produces, the cation that electrostatic precipitator dust collecting electrode ionizes out makes that electronegative dust institute is electronegative to be neutralized or to become positively charged, cause dust to depart from dust collecting electrode, or change direction, to discharge electrode motion, thereby need to carry out final dusting, reduce efficiency of dust collection.
In order to address the above problem, avoid the generation of back corona phenomenon, please refer to Fig. 1, Fig. 1 shows the circuit block diagram of the electrostatic precipitator high-voltage pulse electric power system that the embodiment of the present invention provides.Owing to needing in dust removal process that the environment of electrostatic precipitator is maintained near discharge inception voltage, this electric power system comprises a fundamental power supply circuit 1, and what fundamental power supply circuit 1 provided is that galvanic current is pressed.While being also included in dedusting, for dust provides the pulse generating circuit 2 of crest voltage.In the present embodiment, be provided with the pulse generating circuit 2 that at least two groups are identical, the feeder ear of every group pulse circuit for generating 2 all with being connected of fundamental power supply circuit 1, the output of fundamental power supply circuit 1 connects load 3.It may be noted that, the equivalence of load 3 for carrying out according to the operation principle of electrostatic precipitator, for convenience of description, the load described in the embodiment of the present invention is all equivalences of electrostatic precipitator, the present invention repeats no more this.
When pulse generating circuit 2 is not during output voltage, the voltage being carried in load 3 is the basic voltage of fundamental power supply circuit 1, and the size of this basic voltage is about the discharge inception voltage of electrostatic precipitator, so that provide an electrostatic field for dust.When pulse generating circuit 2 voltage pulse output, after pulse voltage and basic voltage stack, export load 3 to, for dedusting provides high voltage.
No matter which kind of form is the electric power system of electrostatic precipitator be, the charged needed energy of dust in electrostatic precipitator is definite value, use DC power-supply system, lasting time of crest voltage is longer, crest voltage is relatively little, and while using pulse power supply system, because the pulsewidth of crest voltage is relatively little, therefore, during pulse power supply system power supply, relatively large when crest voltage is powered with respect to DC power-supply system, therefore, can make the dust that particle diameter is less charged, and can accelerate the speed that dust moves to dust collecting electrode, improve efficiency of dust collection.
In addition, theoretical according to gas breakdown, gas needed the regular hour to carry out the accumulation of energy before puncturing, when energy accumulation to puncture critical value time, gas breakdown.Same, dust layer puncture the time that also needs energy accumulation, if use DC power-supply system, with electric lotus dust deposit after dust collecting electrode, the voltage being loaded in load due to DC power-supply system exists always, causes dust cannot discharge electric charge, and the voltage of dust layer is more and more higher, finally breakdown, form anti-corona.Referring to Fig. 2, the voltage oscillogram that Fig. 2 exports for the electrostatic precipitator high-voltage pulse electric power system that the embodiment of the present invention provides, wherein, U1 is the basic voltage that fundamental power supply circuit produces, U2 is the voltage after basic voltage superimposed pulse voltage.Can find out, in the embodiment of the present invention, the time that the time of crest voltage effect is pulsewidth, charged under crest voltage effect when dust, and deposit to after dust collecting electrode, the voltage being loaded in load becomes U1, the discharging condition that meets dust, dust can discharge self electric charge.When the pulsewidth of crest voltage enough little, the cycle long enough of pulse voltage, dust can discharge self electric charge before next crest voltage loads, the voltage that guarantees dust collecting electrode dust layer can not reach the critical value of breakdown voltage, crest voltage dust as much as possible not only can be made full use of charged, and the generation that punctures can be avoided.
Because the needed crest voltage of load is that 60kV is to 80kV, if use traditional pulse generating circuit, need to power by a HVDC accessory power supply, and by transformer, the pulse voltage of generation is coupled on basic voltage, the pulse voltage width that not only produced is larger, and one-level circuit only, wherein any unit failure, will cause electrostatic precipitator normally to move.In order to address the above problem, the embodiment of the present invention provides high-voltage pulse power source by the mode of multistage identical pulse circuit for generating series connection to load.
In the embodiment of the present invention, it is identical that the circuit of pulse generating circuits at different levels connects, and the pulse generating circuit of only take in the embodiment of the present invention is described as example.Please refer to Fig. 3, the circuit block diagram of the pulse generating circuit that Fig. 3 provides for the embodiment of the present invention.Because the mode of connecting by multistage pulses circuit for generating provides high-voltage pulse, therefore, every grade of pulse generating circuit is powered by low-voltage dc power supply 21, low-voltage dc power supply 21 paralleling switch pipes 22,, one end of switching tube 22 connects low-voltage dc power supply 21, and the other end connects the earth terminal of low-voltage dc power supply 21; Switching tube 22 also connects one end of energy-storage travelling wave tube 23, and the other end of energy-storage travelling wave tube 23 connects the one end on the former limit 241 of pulse transformer 24, the other end ground connection on the former limit 241 of pulse transformer, and the secondary 242 of pulse transformer 24 is connected with fundamental power supply circuit 1.Adopt the mode of multistage pulses circuit for generating series connection that high-voltage pulse is provided, compare with conventional high-tension pulse generating circuit, the voltage pulsewidth producing is narrower, and when a certain pulse generating circuit fault wherein, do not affect the work of other pulse generating circuits, and then do not affect the normal work of electrostatic precipitator.
Referring to Fig. 4, the equivalent circuit diagram of the pulse generating circuit that Fig. 4 provides for the embodiment of the present invention.Because the particular circuit configurations of pulse generating circuit 2 is more complicated, the embodiment of the present invention is simplified pulse generating circuit for the ease of it will be appreciated by those skilled in the art that, and the equivalent road after simplifying is described.Referring to Fig. 4, the equivalent circuit diagram of the pulse generating circuit that Fig. 4 provides for the embodiment of the present invention, this circuit is by switching device K, the capacitor C of mutually connecting
dC, inductance L, resistance R and capacitor C form.Wherein, switching device K is the equivalence element of switching tube 22 in former pulse generating circuit; Capacitor C
dCequivalence element for energy-storage travelling wave tube 23 in former pulse generating circuit; Inductance L, resistance R and capacitor C are the equivalence element on limit, former pulse generating circuit Central Plains 241 jointly.
When switching device K is not during conducting, the voltage in capacitor C is basic voltage; When switching device K conducting, capacitor C
dCby K, discharge, moment produces a pulse, is loaded in capacitor C, and is added on basic voltage by inductance L, resistance R and capacitor C coupling to inductance L and resistance R release, is then applied in load 3.Above-mentioned is capacitor C
dCwhole energy are discharged into the process of capacitor C, work as capacitor C
dCin energy discharge completely, the energy in capacitor C flows to capacitor C again by the diode in switching device K
dC, this process, pulse voltage reduces, until next capacitor C
dCwhile releasing energy, complete a pulse period.
Referring to Fig. 5, electric current, the voltage oscillogram of the pulse generating circuit output that Fig. 5 provides for the embodiment of the present invention, wherein, 0 to t1 constantly, in said process during K conducting, capacitor C
dCthe process of electric discharge, if by the mobile forward flow that is considered as of electric current now, t1 is capacitor C constantly
dCenergy storage discharge the complete moment, during t1, be carved into t2 and constantly for energy, from capacitor C L, flow back to capacitor C
dCprocess, this process reverse direction current flow.As can be seen here, in capacitor C L charging process, pulse voltage increases gradually, when capacitor C L is to capacitor C
dCduring back discharge, pulse voltage reduces gradually, until capacitor C L discharge off.
It may be noted that, because the element in circuit can consume portion of energy, therefore, be back to capacitor C
dCenergy while discharging for it energy 90%, but traditional DC power-supply system is in power supply process, noenergy refluxes, the energy that is equivalent to consume is 100%, therefore, compared with prior art, the power consumption during pulse power supply system power supply of the embodiment of the present invention reduces greatly, can save 70% to 80% energy.
Conventionally, the moment of capacitor discharge in pulse generating circuit, can produce the spike energy of certain frequency, this spike energy paired pulses circuit for generating 2 can produce very large infringement, to such an extent as to service life that can chopped pulse circuit 2.Therefore, also please refer to Fig. 6, Fig. 6 shows the second embodiment circuit block diagram of the pulse generating circuit that the embodiment of the present invention provides, for paired pulses circuit for generating 2 is protected, in the pulse generating circuit 2 providing in the embodiment of the present invention, also be provided with reverse absorbing circuit 28, oppositely absorbing circuit 28 is by absorbing circuit parallel with one another and two-way admittance the electric circuit constitute, absorbing circuit is by resistance, electric capacity and one-way conduction element form, after resistance and Capacitance parallel connection, connect with one-way conduction element, the conducting direction when conducting direction of one-way conduction element is closed with switching tube is consistent, turning circuit is comprised of the bi-directional voltage stabilizing pipe of mutually connecting.
In addition, need to illustrate, the size of the pulse voltage that pulse generating circuit 2 produces is conventionally subject to the impact of magnetic core of transformer, after magnetic core is saturated, electric current mainly flows through magnetic core with the form of leakage current, the equivalent inductance of transformer is similar to short circuit, cannot produce higher voltage, but also can cause oscillation circuit.And the voltage that embodiment of the present invention requirement is added in load 3 is high voltage, therefore, in order to increase the dynamic range of magnetic core of transformer, increase the crest voltage of pulse generating circuit 2, former limit at pulse generating circuit 2 transformers is parallel with Saturationproof circuit 25, and Saturationproof circuit 25 comprises inductance and the power supply of mutual series connection.Certainly, in order to make the more perfect function of pulse generating circuit 2, between low-voltage dc power supply 21 and switching tube 22, be parallel with filter element 26; Impact on low-voltage dc power supply 21 and filter element 26 while discharging in order to reduce energy-storage travelling wave tube 23 is in series with anti-back flow circuit 27 between low-voltage dc power supply 21 inputs and energy-storage travelling wave tube 23.
Wherein, every partial circuit all can have multiple connected mode, can realize according to user's real needs, and the present invention does not limit this.For the ease of those skilled in the art, technical solution of the present invention is had to more concrete, detailed understanding, below by a preferred embodiment of the present invention, set forth.
Refer to Fig. 7, the circuit connection diagram of the pulse generating circuit that Fig. 7 provides for the embodiment of the present invention, wherein, 500V dc source is the low-voltage dc power supply of pulse generating circuit, capacitor C 2 is filter capacitor, inductance L 2 is choke induction, and jointly form anti-back flow circuit with diode VD3, V1 is IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) switching tube, capacitor C 3 is storage capacitor, circuit 71 is reverse absorbing circuit, circuit 72 is Saturationproof circuit, the secondary that T2 is pulse transformer.
IGBT switching tube is subject to transient switching after the driving signal of 500V dc source, and the energy moment in storage capacitor C3 discharges to the former limit of pulse transformer by IGBT switching tube, forms pulse voltage signal, and pulse voltage signal is by offered load after transformation.After storage capacitor C3 has discharged, the energy being added in load flows back to storage capacitor C3 by the diode reverse in IGBT switching tube, completes a harmonic period.
When the moment of IGBT switching tube conducting, can produce a spike energy, circuit is had to certain infringement.In the present embodiment; the capacitor C 4 that the HFS of this energy can be reversed in absorbing circuit 71 consumes; the remaining part with certain width and energy can all be consumed by resistance R 3, thereby spike is all absorbed, and paired pulses circuit for generating is protected.
When storage capacitor C3 discharges, current direction and 500V dc source opposite direction, and the conducting direction of VD3 is identical with 500V dc source direction, while making storage capacitor C3 electric discharge, electric current can not flow into forward, thereby avoids the impact on front stage circuits.
Certainly, above are only a preferred exemplary of the present invention, the functional circuit in foregoing circuit and element be not limited to foregoing description, can be also other applicable circuit connecting mode and function element, the present invention does not limit this.
Refer to again Fig. 8, the circuit diagram of the electrostatic precipitator high-voltage pulse electric power system that Fig. 8 provides for the embodiment of the present invention, wherein, 81 is the fundamental power supply circuit of this electric power system, for providing galvanic current, load presses, 82 is the pulse generating circuit of above-mentioned connected mode, in the present embodiment, be in series with 10 group pulse circuit for generatings with fundamental power supply circuit, electrostatic precipitator is equivalent to CL parallel with one another in this circuit and RL, in parallel with load have an overvoltage crowbar, comprise: the capacitor C 5 that is connected in parallel on fundamental power supply circuit 81 outputs and last group pulse circuit for generating feeder ear, and one end connects the RL circuit that capacitor C 5 other ends connect load.
Compared with prior art, this electric power system adopts a plurality of pulse generation unit combination to form, each unit drives a pulse transformer with IGBT as switching device, utilize capacitor and inductor resonance to discharge and recharge, secondary output voltage is the stack of all unit secondary voltage, the IGBT of each unit drives and can altogether, the stack of multiply small-pulse effect voltage finally be formed to high-voltage pulse.
The electrostatic precipitator high-voltage pulse electric power system comprehensively above-mentioned, the embodiment of the present invention provides, comprises fundamental power supply circuit, the pulse generating circuit of and mutual series connection identical with at least two groups; The feeder ear of pulse generating circuit connects the output of fundamental power supply circuit, and the output of fundamental power supply circuit connects load.When pulse generating circuit is not under power supply state, fundamental power supply circuit provides basic voltage for load, and when pulse generating circuit is powered, the voltage that power-supply system provides for load is pulse voltage and the basic voltage stack voltage sum afterwards of pulse generating circuit output.Compared with prior art, crest voltage is pulse voltage, when dust deposit is after dust collecting electrode, the voltage of electrostatic precipitator reduces, the environment not only providing for dust electric discharge, also be provided enough discharge times simultaneously, thereby can reduce the accumulation voltage of dust layer, not only can avoid puncturing, prevent the generation of back corona phenomenon, improve efficiency of dust collection, and can reduce energy consumption.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above is only the specific embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. electrostatic precipitator high-voltage pulse electric power system, is characterized in that, comprising: fundamental power supply circuit, the pulse generating circuit of and mutual series connection identical with at least two groups; The feeder ear of described pulse generating circuit connects the output of described fundamental power supply circuit, and the output of described fundamental power supply circuit connects load;
When the feeder ear of described pulse generating circuit is not during voltage pulse output, described fundamental power supply circuit is to described load output basic voltage, when the feeder ear of described pulse generating circuit is exported described pulse voltage, the backward described load output of described pulse voltage and the stack of described basic voltage.
2. electrostatic precipitator high-voltage pulse electric power system as claimed in claim 1, is characterized in that, described pulse generating circuit comprises: low-voltage dc power supply, switching tube, energy-storage travelling wave tube and pulse transformer;
Wherein, one end of described switching tube is connected with described low-voltage dc power supply, and the other end is connected with the earth terminal of described low-voltage dc power supply; Described energy-storage travelling wave tube one end connects described switching tube, and the other end connects the one end on the former limit of described pulse transformer, the other end ground connection on the former limit of described pulse transformer; Described pulse transformer secondary is connected with the voltage input end of described fundamental power supply circuit.
3. electrostatic precipitator high-voltage pulse electric power system as claimed in claim 2, it is characterized in that, described pulse generating circuit also comprises: the reverse absorbing circuit in parallel with described energy-storage travelling wave tube, and described reverse absorbing circuit is by absorbing circuit parallel with one another and two-way admittance the electric circuit constitute;
Described absorbing circuit is comprised of resistance, electric capacity and one-way conduction element, after described resistance and described Capacitance parallel connection, connects with described one-way conduction element, and the conducting direction when conducting direction of described one-way conduction element is closed with described switching tube is consistent;
Described turning circuit is comprised of the bi-directional voltage stabilizing pipe of mutually connecting.
4. electrostatic precipitator high-voltage pulse electric power system as claimed in claim 2, it is characterized in that, described pulse generating circuit also comprises: be connected in parallel on the Saturationproof circuit at two ends, the former limit of described pulse transformer, described Saturationproof circuit comprises inductance and the power supply of mutual series connection.
5. electrostatic precipitator high-voltage pulse electric power system as claimed in claim 2, is characterized in that, described pulse generating circuit also comprises: be connected in parallel on the filter element between described low-voltage dc power supply and described switching tube.
6. electrostatic precipitator high-voltage pulse electric power system as claimed in claim 2, it is characterized in that, described pulse generating circuit also comprises: be connected on the anti-back flow circuit between described low-voltage dc power supply input and described energy-storage travelling wave tube, for electric current one-way conduction when described energy-storage travelling wave tube discharges.
7. electrostatic precipitator high-voltage pulse electric power system as claimed in claim 1, is characterized in that, described pulse generating circuit is 10 groups.
8. electrostatic precipitator high-voltage pulse electric power system as claimed in claim 1, is characterized in that, also comprises the overvoltage crowbar in parallel with described load.
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| CN107321504A (en) * | 2017-06-08 | 2017-11-07 | 西安理工大学 | A kind of electric dust collector powered for high-voltage pulse and its design method |
| CN108421642A (en) * | 2018-04-27 | 2018-08-21 | 浙江大维高新技术股份有限公司 | A kind of electric precipitation high-voltage pulse power source |
| CN112844846A (en) * | 2021-02-23 | 2021-05-28 | 上海丸西空环保科技有限公司 | Multi-frequency pulse discharge high-temperature flue gas dust collection device and dust collection method |
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| CN107321504B (en) * | 2017-06-08 | 2019-05-28 | 西安理工大学 | A kind of electrical dust collector device and its design method with high-voltage pulse power supply |
| CN108421642A (en) * | 2018-04-27 | 2018-08-21 | 浙江大维高新技术股份有限公司 | A kind of electric precipitation high-voltage pulse power source |
| CN112844846A (en) * | 2021-02-23 | 2021-05-28 | 上海丸西空环保科技有限公司 | Multi-frequency pulse discharge high-temperature flue gas dust collection device and dust collection method |
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