CN102233301A - High-frequency pulse power supply for electrostatic dust collector - Google Patents
High-frequency pulse power supply for electrostatic dust collector Download PDFInfo
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- CN102233301A CN102233301A CN2010101502191A CN201010150219A CN102233301A CN 102233301 A CN102233301 A CN 102233301A CN 2010101502191 A CN2010101502191 A CN 2010101502191A CN 201010150219 A CN201010150219 A CN 201010150219A CN 102233301 A CN102233301 A CN 102233301A
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Abstract
The invention relates to a high-frequency pulse power supply for an electrostatic dust collector. The high-frequency pulse power supply for the electrostatic dust collector comprises an electric control unit, a rectifier, a high-voltage inversion and resonance unit, a high-frequency boosting and rectifying unit and a heat dissipating unit, wherein the side face of the electric control unit is connected with a three-phase contactor and the rectifier sequentially; the rectifier is connected to the high-voltage inversion and resonance unit; and the high-frequency boosting and rectifying unit is arranged on the lower part of an equipment shell. The high-frequency pulse power supply for the electrostatic dust collector has the advantages that: an advanced control mode of independent operation and concentrated management is adopted; the phenomenon can be effectively inhibited and the corona power can be increased, so that the charging capacity of dust in an electric field is improved and the dust-collecting efficiency is improved; the operating cost of users can be saved; the high-frequency pulse power supply has the characteristics of small volume, light weight, high cost performance and the like in the aspect of appearance and has the advantages of simple installation, convenience in maintenance, reduction of capital expenditure, friendly human-computer interface, reduction of staff allocation and the like in the aspect of usage; the high-frequency pulse power supply can be applied to newly constructing projects and updating the traditional semiconductor control rectifier (SCR) power supply; dust collector body equipment is not required to be changed; and the application range is wide.
Description
Technical field
The present invention relates to a kind of high-frequency and high-voltage switching power unit, relate in particular to a kind of electrostatic precipitator high frequency pulse power supply.
Background technology
High frequency switch power is also referred to as switching mode rectifier SMR, as upgrading such as conventional rectifier such as silicon rectifier or silicon controlled rectifier (SCR) substitute products, high frequency switch power is advantage such as to use conveniently, volume is little, efficient is high, working stability, coating are careful and dominate the market rapidly and can be widely used in surface treatment industries such as plating, electrolysis, oxidation.In the electric dust-removing power supply industry, the principle of gathering dust of electrostatic precipitator is generally: behind the input high-tension electricity, set up a high-voltage electrostatic field heterogeneous between positive plate in the electric field and the cathode line, ash-laden gas passes through between the positive plate of electric field inner cathode line and ground connection, by highfield ionization is cation and negatron, be subjected to the effect of electric field force, negatron runs into dust granules in the process that positive pole moves, and makes dust granules electronegative and be adsorbed on the anode plate; During work, the general two-phase power frequency supply that adopts is also through after the controllable silicon phase shifting control amplitude, send the rectifier transformer rectification of boosting, the pulsating current that forms 50Hz send deduster, in the course of work because power frequency supply easily at the peak dot flashover, causes the effective DC voltage and the corona current that provide less, under big concentration or the fine dust operating mode situation, the power supply of conventional scr power supply is easy to generate corona blocking, causes efficiency of dust collection lower.In addition, the power frequency thyristor supply is a single phase power supply, and input power factor causes great interference and three imbalances less than 0.7 to electrical network, and the charged ability of dust is relatively poor in the electric field, and migration velocity and voltage pulsation are all not ideal enough.
Summary of the invention
At above defective, the invention provides and a kind ofly can effectively improve efficiency of dust collection, energy-saving and cost-reducing, control model is excellent, easy to operate, volume is less, the scope of application is wider electrostatic precipitator high frequency pulse power supply, thereby solve many deficiencies of prior art.
For achieving the above object, the present invention is by the following technical solutions:
A kind of electrostatic precipitator high frequency pulse power supply, comprise that ECU, rectifier, high-voltage inverted and resonant element, high frequency boost and rectification unit, heat-sink unit, described ECU side connects three-phase contactor and rectifier successively, described rectifier inserts high-voltage inverted and resonant element, and apparatus casing bottom installation high frequency boosts and rectification unit; Described heat-sink unit comprises the oily circulating condensing of a cooling fan and system.
Compared with prior art, the beneficial effect of electrostatic precipitator high frequency pulse power supply of the present invention is:
(1) integrates technology such as modern power electronic, computer control, network control, and adopt the advanced control model of independent operating, centralized management;
(2) adaptability of this power supply operating mode is better than traditional SCR power supply greatly, and its output voltage is more suitable in the not ESP of resistance operating mode application on year-on-year basis efficiency of dust collection being improved greatly; The power supply of conventional scr power supply is easy to generate corona blocking, and adopts this power supply can effectively suppress this phenomenon, increases corona discharge power, thereby has increased the charged ability of dust in the electric field, increases migration velocity, improves dust-collecting efficiency;
(3) because of the power factor height, little to the humorous wave interference of electrical network, can save user's operating cost;
(4) have characteristics such as volume is little, in light weight, cost performance height in shape, have advantages such as simple, easy to maintenance, saving capital cost, man-machine interface close friend, minimizing personnel configuration are installed in use;
(5) can be applicable to the update of grassroot project and traditional SCR power supply, need not to change deduster body equipment, by changing the power supply of ESP, the ESP dust collection performance is improved, thereby provide a new way the technological transformation of the not good ESP equipment of present performance;
(6) can be used for equipment such as dedusting, demist, dehydration, air cleaning, impurity separation and plurality of raw materials recovery, and can be widely used in industries such as electric power, metallurgy, oil, chemical industry, cement, light industry, electronics, help control atmosphere pollution and protection environment.
Description of drawings
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the operation principle schematic diagram of the described electrostatic precipitator high frequency pulse power supply of the embodiment of the invention;
Fig. 2 is the main circuit principle schematic of the described electrostatic precipitator high frequency pulse power supply of the embodiment of the invention.
The specific embodiment
As shown in Figure 1, the described electrostatic precipitator high frequency pulse power supply of the embodiment of the invention, comprise that ECU, rectifier, high-voltage inverted and resonant element, high frequency boost and rectification unit, heat-sink unit, the high frequency pulse power supply housing adopts high and low pressure and control loop integral structure, the following product of 600mA specification adopts the cold radiator structure of full blast, the above specification product of 800mA or 1000mA adopts air-cooled oiling circulation to mix cooling structure, because of adopting high-low pressure integratedization design, but so the equipment integral installation convenient; Described ECU comprises main circuit AC portion, operation control circuit, DSP core master control borad etc. and is installed on the device front, described ECU side connects three-phase contactor and rectifier successively, this rectifier is filtered into the DC voltage about 510V with three-phase AC380V rectification; Described rectifier inserts high-voltage inverted and resonant element, DC voltage is exported to the elementary of step-up transformer through IGBT high-frequency inversion, resonance circuit, apparatus casing bottom installation high frequency boosts and rectification unit, comprise mainly in this unit that high frequency boosts and high-frequency rectification two parts, and can respectively high frequency voltage is made into high direct voltage and export ESP to through the high-frequency rectification bridge again after high-frequency step-up transformer boosts and boosts; Described heat-sink unit comprises the oily circulating condensing of the cooling fan of a 1.1kW and system, and cooling fan is to the IGBT heat radiation, and oily circulating condensing system dispels the heat to transformer.
Show as Fig. 2, the described electrostatic precipitator high frequency pulse power supply of the embodiment of the invention, its main circuit principle comprises that three-phase 380V exchanges through rectifier bridge to DC voltage, again through charging inductance L, filter capacitor C, DC voltage (about 510V) that output is straight; The high-frequency resonant formula inverter circuit that DC voltage is formed via IGBT inverter bridge, resonant capacitance Cs, resonant inductance Ls and high frequency transformer is reverse into high-frequency ac voltage; The inversion waveform boosts through high frequency transformer, again through the rectification of high-frequency rectification bridge, thereby obtains the desired DC voltage of ESP.Its main feature is: main circuit adopts high-frequency inversion, high-voltage rectifying, produces the ESP required voltage, adopts DSPs as kernel control chip, and IGBT is as switch module; By host computer (PC) centralized management, the operation of each power supply is independent by the CAN net for all power supplys.
The described electrostatic precipitator high frequency pulse power supply of the above embodiment of the invention, mainly be presented as aspect the raising efficiency of dust collection: high frequency electric source reaches as high as 40kHz after exporting big corona current high-frequency and high-voltage Switching Power Supply rectification, waveform is minimum through its output ripple of stack back, the 72kV power supply just can provide the average voltage near 72kV, high frequency electric source average voltage and crest voltage and flashover voltage are almost equal, can export higher average voltage and bigger corona current; Behind electric cleaner generation flashover, high frequency electric source can capture spark and it is extinguished fast the enough extremely short time, start fast, according to field working conditions, power supply can be judged the height of different period flashover point voltages automatically, secondary voltage output is remained at below the flashover point also try one's best near the work of flashover point, whole like this electric field is flashover seldom, makes body be in dedusting state efficiently all the time.In sum, under equal operating mode, efficiency of dust collection has improved 35～40%.Aspect energy-conservation, therefore the input power factor of high frequency switch power can improve conversion efficiency more than 20% near 0.95, significantly reduces the empty loss rate of load of mains supply; The voltage pulsation of power supply output is less than 5%, and its direct current average voltage is good near crest voltage, output C-V characteristic; The pulse width of high frequency electric source is minimum, it is the one thousandth of power frequency supply, thereby quickened the gas separation, improved the carrying capacity of flue dust, improved efficiency of dust collection, have under the prerequisite of enough electric charges at flue dust simultaneously, reduce invalid electric field ionization, thereby reduced electric cleaner electric field power supply energy loss; The concentration of emission value that is detected by real-time reception transmissometer, and adjust the high frequency electric source operational factor automatically, make the deduster soot emissions when reaching setting value, avoid the how unnecessary electric energy of electric cleaner system consumption.
Claims (3)
1. electrostatic precipitator high frequency pulse power supply, comprise that ECU, rectifier, high-voltage inverted and resonant element, high frequency boost and rectification unit, heat-sink unit, it is characterized in that: described ECU side connects three-phase contactor and rectifier successively, described rectifier inserts high-voltage inverted and resonant element, and apparatus casing bottom installation high frequency boosts and rectification unit.
2. electrostatic precipitator high frequency pulse power supply according to claim 1 is characterized in that: described ECU comprises main circuit AC portion, operation control circuit, DSP core master control borad etc. and is installed on the device front.
3. electrostatic precipitator high frequency pulse power supply according to claim 1 is characterized in that: described heat-sink unit comprises the oily circulating condensing of a cooling fan and system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101502191A CN102233301A (en) | 2010-04-20 | 2010-04-20 | High-frequency pulse power supply for electrostatic dust collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101502191A CN102233301A (en) | 2010-04-20 | 2010-04-20 | High-frequency pulse power supply for electrostatic dust collector |
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| CN102233301A true CN102233301A (en) | 2011-11-09 |
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| CN2010101502191A Pending CN102233301A (en) | 2010-04-20 | 2010-04-20 | High-frequency pulse power supply for electrostatic dust collector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497113A (en) * | 2011-11-14 | 2012-06-13 | 江苏科技大学 | High-frequency high-voltage power supply for electrostatic precipitation, and control method of the same |
| CN107282305A (en) * | 2017-07-31 | 2017-10-24 | 苏州安岢栎热能科技有限公司 | A kind of high-efficiency and energy-saving type electrostatic precipitator |
| CN110548597A (en) * | 2019-08-23 | 2019-12-10 | 天津华派集装箱制造有限公司 | Control method of high-frequency high-voltage electrostatic dust suppression power supply |
| CN113399118A (en) * | 2021-05-13 | 2021-09-17 | 浙江天洁环境工程有限公司 | High-frequency power supply control system and electric dust removal device thereof |
| CN114918044A (en) * | 2022-06-17 | 2022-08-19 | 安徽工业大学 | System and method for removing anode powder scale of electric dust remover by using high-frequency electric pulse |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS56161848A (en) * | 1980-05-14 | 1981-12-12 | Hitachi Ltd | Charger for electric dust collector |
| GB2096845A (en) * | 1981-04-08 | 1982-10-20 | Mitsubishi Heavy Ind Ltd | Electric dust collecting apparatus |
| CN85101306A (en) * | 1985-04-01 | 1987-01-10 | 三菱重工业株式会社 | Two-stage electrostatic precipitator |
| CN2556848Y (en) * | 2002-03-01 | 2003-06-18 | 大连贵友机电有限公司 | High-frequency inverter for electric removing dust |
| CN201023067Y (en) * | 2006-12-15 | 2008-02-20 | 福建闽泰环保有限公司 | Novel disposition scheme for lens type high pressure electrostatic dust-collecting electric field |
-
2010
- 2010-04-20 CN CN2010101502191A patent/CN102233301A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161848A (en) * | 1980-05-14 | 1981-12-12 | Hitachi Ltd | Charger for electric dust collector |
| GB2096845A (en) * | 1981-04-08 | 1982-10-20 | Mitsubishi Heavy Ind Ltd | Electric dust collecting apparatus |
| CN85101306A (en) * | 1985-04-01 | 1987-01-10 | 三菱重工业株式会社 | Two-stage electrostatic precipitator |
| CN2556848Y (en) * | 2002-03-01 | 2003-06-18 | 大连贵友机电有限公司 | High-frequency inverter for electric removing dust |
| CN201023067Y (en) * | 2006-12-15 | 2008-02-20 | 福建闽泰环保有限公司 | Novel disposition scheme for lens type high pressure electrostatic dust-collecting electric field |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497113A (en) * | 2011-11-14 | 2012-06-13 | 江苏科技大学 | High-frequency high-voltage power supply for electrostatic precipitation, and control method of the same |
| CN107282305A (en) * | 2017-07-31 | 2017-10-24 | 苏州安岢栎热能科技有限公司 | A kind of high-efficiency and energy-saving type electrostatic precipitator |
| CN110548597A (en) * | 2019-08-23 | 2019-12-10 | 天津华派集装箱制造有限公司 | Control method of high-frequency high-voltage electrostatic dust suppression power supply |
| CN113399118A (en) * | 2021-05-13 | 2021-09-17 | 浙江天洁环境工程有限公司 | High-frequency power supply control system and electric dust removal device thereof |
| CN114918044A (en) * | 2022-06-17 | 2022-08-19 | 安徽工业大学 | System and method for removing anode powder scale of electric dust remover by using high-frequency electric pulse |
| CN114918044B (en) * | 2022-06-17 | 2023-08-29 | 安徽工业大学 | System and method for removing anode powder dirt of electric dust remover by utilizing high-frequency electric pulse |
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Application publication date: 20111109 |