CN201360223Y - Intermediate frequency power source of ozone generator - Google Patents
Intermediate frequency power source of ozone generator Download PDFInfo
- Publication number
- CN201360223Y CN201360223Y CNU2009200173984U CN200920017398U CN201360223Y CN 201360223 Y CN201360223 Y CN 201360223Y CN U2009200173984 U CNU2009200173984 U CN U2009200173984U CN 200920017398 U CN200920017398 U CN 200920017398U CN 201360223 Y CN201360223 Y CN 201360223Y
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- Prior art keywords
- circuit
- intermediate frequency
- power supply
- frequency power
- ozone generator
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000009499 grossing Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Landscapes
- Inverter Devices (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The utility model discloses an intermediate frequency power source of ozone generator, which comprises a rectification circuit, an inverter circuit and a high voltage transformer, wherein an inverter output end of the inverter circuit is connected with a first capacitor in parallel on one hand and is connected with a primary coil of the high voltage transformer through a second capacitor which is connected in series on the other hand. The intermediate frequency power source has the characteristic of matching with condensive load, is not affected by load differences, and has high power supply efficiency and reliable operation.
Description
Technical field
The utility model relates to a kind of power supply, specifically, relates to a kind of intermediate frequency power supply for the ozone generator power supply.
Background technology
Ozone has been widely used in drinking the disinfection of removal, medical apparatus and the Shui nationality water body etc. of noxious substance in water purification sterilization and trade effluent processing, air cleaning and the flue gas, the bleaching and the aspects such as decolouring, food fresh keeping of fabric as a kind of strong oxidizer.For a long time, people are devoted to study the cost that how to improve the synthetic efficient of ozone, reduces the ozone generator operation always, and guarantee that ozone generating-device can move safely and reliably.The method of synthetic ozone has multiple, and as ultraviolet radiation method, electrolysis, creeping discharge method or the like, and industrial most widely used ozone synthetic method is the silent discharge method, is also referred to as the dielectric barrier discharge method.Corresponding ozone generator mainly is made up of several parts such as air supply system, power-supply system and ozone arc chambers, and wherein, power-supply system plays a decisive role at the aspects such as efficient, operating cost and reliability of operation of ozone generator.
Present most ozone generator is with the power frequency operation of 50/60Hz, and part has with intermediate frequency (100-1000Hz) or high frequency (greater than 1000Hz) operation.With S.Masuda is the Japanese electrostatic sector of representative, has done the steepness that a large amount of research improves high-voltage pulse, and the efficient that makes industrial silent discharge ozone generator is than the improve 15% of using common power.But greater than for 1Kg/ hour the large-scale ozone generator,, can't realize very high high voltage source climbing, so this method can not be applied on the large-scale ozone generator because the capacitive of its load is bigger for ozone output.
The power-supply system of common ozone generator adopts high-voltage inverted power supply as shown in Figure 1, comprise three phase rectifier part, switching inverter circuit and H.V. step up transformer etc. that diode is formed, provide High Level AC Voltage for the ozone arc chamber after the alternating current that H.V. step up transformer is exported inverter circuit boosts.Wherein, the switch element of inverter circuit is selected high-power IGBT pipe VT1-VT4 for use.Because the load that the air gap of ozone generator and dielectric material are formed shows as capacitance characteristic, and the capacitance that is accompanied by corona discharge systems constantly changing, and therefore whole ozone generator circuit can the capacitive load of equivalence for changing.Experiment shows, the operating frequency of high-voltage inverted power supply is subjected to the restriction of load, the frequency of the big more work of load just requires low more, in actual application, concerning large-scale ozone generator, do not need too high frequency like this, in fact all large-scale ozone generators all are operated in the intermediate frequency state, and the superiority of IGBT is the switching speed of its high frequency even hyperfrequency exactly; On the other hand, IGBT itself is anti-cross properties of flow a little less than, be easy to damage because of overcurrent, often need in circuit, dispose a large amount of auxiliary protection circuits, cause the increase of device fabrication and maintenance cost like this; In addition, this high-voltage inverted power-supply system can not be adjusted circuit structure at the variation of capacitive load, causes power supply to be subjected to the influence of arc chamber load easily, and power source performance is relatively poor.
Summary of the invention
The utility model provides a kind of intermediate frequency power supply of ozone generator at the above-mentioned shortcoming and defect that the medium-and-large-sized ozonizer power supply of prior art system exists, and described power supply has the characteristic of coupling capacitive load, is not subjected to the influence of load difference, and performance is higher.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of intermediate frequency power supply of ozone generator, comprise rectification circuit, inverter circuit and high-tension transformer, it is characterized in that the inverting output terminal of described inverter circuit is parallel with first electric capacity on the one hand, second electric capacity by series connection connects described transformer primary winding on the other hand.
According to the utility model, described inverter circuit is the single-phase full bridge inverter circuit that 4 high speed thyristors are formed.
According to the utility model, the rectification output end of described rectification circuit connects the inverter input of described inverter circuit by the smoothing reactor of series connection.
According to the utility model, the output of described rectification circuit is parallel with the direct voltage protective circuit.
Preferably, described direct voltage protective circuit is a thyristor.
According to the utility model, described rectification circuit is the three phase controlled rectifier circuit that 6 thyristors are formed, and the input of described rectification circuit connects three-phase alternating current, output DC after described three phase controlled rectifier circuit rectification.
Compared with prior art, advantage of the present utility model and good effect are:
1, the circuit by adopting shunt capacitance and series capacitance to combine at the inverter circuit output, equivalent capacity in the ozone arc chamber constitutes the resonant capacitance in the ozone generator system, the leakage inductance of described resonant capacitance and high-tension transformer constitutes resonant circuit, make whole ozone generator be operated in the quasi-resonance state, thereby improve the efficient of intermediate frequency power supply to greatest extent, reduce the operating cost of ozone generator, also improved the adaptability and the stability of power supply simultaneously.
2, adopt high speed thyristor to constitute the inverter circuit of power supply, can satisfy the frequency requirement and the reliability requirement of large-scale ozone generator, simplified circuit construction of electric power, reduced the power supply manufacturing cost, improved power supply useful life.
Description of drawings
Fig. 1 is the high-voltage inverted power circuit diagram in the prior art ozone generator;
Fig. 2 is the circuit diagram of an embodiment of intermediate frequency power supply of the utility model ozone generator.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
See also the circuit diagram of an embodiment of ozone generator intermediate frequency power supply shown in Figure 2.Among the figure, described power supply comprises rectification circuit 1, medium frequency inverter circuit 3, is connected on the dc flat-wave reactor 2 between described rectification circuit 1 output and inverter circuit 3 inputs, inverting output terminal at described inverter circuit 3 is parallel with first electric capacity 41 on the one hand, the primary coil that connects a high-tension transformer 5 on the other hand by second electric capacity 42 of series connection, the secondary coil output High Level AC Voltage of described high-tension transformer 5 gives the ozone arc chamber 6 power supplies.In addition, the output at described rectification circuit 1 also is parallel with the direct voltage protective circuit 7 that thyristor 71 constitutes.
Wherein, the three phase controlled rectifier circuit that rectification circuit 1 is made up of 6 high-power triode thyristors is used for changing the three-phase alternating current of input into DC power supply output.Described rectification circuit cost is lower, reliability is higher, and the direct current commutating voltage is adjustable continuously, the adjustable range broad.
Dc flat-wave reactor 2 is connected on the rectification output end of described rectification circuit 1, forms current source with dc output power and inputs in the described inverter circuit 3.The inductance value of described smoothing reactor 2 is determined according to the actual parameter of ozone arc chamber load, can obtain level and smooth direct voltage, guarantees the bringing onto load stable operation of power supply institute.
Described medium frequency inverter circuit 3 is the single-phase full bridge inverter circuits that are made of 4 high speed thyristors 31.Because large-scale ozone generator load capacitive is bigger, limited IF-FRE can not too high (generally at 800Hz) about, adopt high speed thyristor also to be easy to satisfy the switch requirement, the IGBT that has speed-sensitive switch speed so just be not must selection.Owing to having, thyristor well bears the overcurrent characteristic simultaneously, the IGBT that compares, and it does not need too much configuration protection circuit, can reach higher reliability equally.
Figure mesohigh transformer 5 possesses bigger leakage inductance parameter, and one side can be because of the saturated device systems fault that causes of transformer in the load variations process; The leakage inductance of described on the other hand high-tension transformer 5 and the electric capacity in the Circuits System constitute resonant circuit, make equipment work at the quasi-resonance state, thereby improve the efficient of intermediate frequency power supply to greatest extent, reduce operating cost.
The inverting output terminal of described inverter circuit 3 adopts the series-parallel circuit structure of series capacitance 42 and shunt capacitance 41, the resonant capacitance of described series capacitance 42 and the described shunt capacitance 41 equivalent capacity 61 built-up circuit systems in ozone arc chamber 6, and then constitute resonant circuit with the leakage inductance of described high-tension transformer 5.In actual the use, can adjust capacitance parameter, reach the coupling with the power circuit parameter, improve the adaptability and the stability of power supply according to the actual loading characteristic.In addition, at power circuit system from start to the process of operating at full capacity, because the capacitance parameter 61 of arc chamber 6 equivalences is in continuous variation, cause the resonance frequency of system also can correspondingly change within the specific limits, system's corresponding adjustment medium frequency inverter frequency guarantees that power circuit is operated in the quasi-resonance state.
The thyristor 71 at rectification circuit 1 two ends is as the part of power circuit protective circuit, can not damage during protecting power circuit power when abnormal conditions.Because the current source circuit that this circuit adopts rectification circuit 1 and smoothing reactor 2 to form; when the ozone generator operate as normal, can lay in big energy in the smoothing reactor 2; in case because fault or other reasons are must emergency shutdown the time; the energy that is stored in the smoothing reactor 2 must discharge immediately; otherwise; energy in the smoothing reactor 2 can superpose on power circuit; voltage value when generation is several times as much as operate as normal; it is withstand voltage that this voltage is higher than bearing of thyristor 31 in the inverter circuit 3 far away, causes the damage of inverter circuit 3 power devices.This circuit is formed energy release circuit by smoothing reactor 2, inverter circuit 3 and protection thyristor 71; in case abnormal shutdown occurs; energy in the smoothing reactor 2 can be got back to smoothing reactor 2 formed loops and release along former limit, the protection thyristor 71 of smoothing reactor 2, inverter thyristor 3, high-tension transformer 5, thereby the power device of protection inverter main circuit can be owing to overvoltage damages.
Certainly; the above only is a kind of preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1, a kind of intermediate frequency power supply of ozone generator, comprise rectification circuit, inverter circuit and high-tension transformer, it is characterized in that the inverting output terminal of described inverter circuit is parallel with first electric capacity on the one hand, second electric capacity by series connection connects described transformer primary winding on the other hand.
2, intermediate frequency power supply according to claim 1 is characterized in that, described inverter circuit is the single-phase full bridge inverter circuit that 4 high speed thyristors are formed.
3, intermediate frequency power supply according to claim 2 is characterized in that, the rectification output end of described rectification circuit connects the inverter input of described inverter by the smoothing reactor of series connection.
4, according to each described intermediate frequency power supply in the claim 1 to 3, it is characterized in that the output of described rectification circuit is parallel with the direct voltage protective circuit.
5, intermediate frequency power supply according to claim 4 is characterized in that, described direct voltage protective circuit is a thyristor.
6, intermediate frequency power supply according to claim 4 is characterized in that, described rectification circuit is the three phase controlled rectifier circuit that 6 thyristors are formed, the input of described rectification circuit connects three-phase alternating current, output DC after described three phase controlled rectifier circuit rectification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200173984U CN201360223Y (en) | 2009-01-04 | 2009-01-04 | Intermediate frequency power source of ozone generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200173984U CN201360223Y (en) | 2009-01-04 | 2009-01-04 | Intermediate frequency power source of ozone generator |
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| Publication Number | Publication Date |
|---|---|
| CN201360223Y true CN201360223Y (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200173984U Expired - Fee Related CN201360223Y (en) | 2009-01-04 | 2009-01-04 | Intermediate frequency power source of ozone generator |
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| CN (1) | CN201360223Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664538A (en) * | 2012-05-15 | 2012-09-12 | 南昌工程学院 | High-power-factor dielectric barrier discharge power supply circuit |
| CN104601005A (en) * | 2015-01-30 | 2015-05-06 | 惟能科技（上海）有限公司 | Resonance offset frequency ozone generator power supply |
| CN104767388A (en) * | 2015-04-23 | 2015-07-08 | 大连理工大学 | Ozonator power supply |
| CN106059331A (en) * | 2016-07-22 | 2016-10-26 | 桂林电子科技大学 | Ozonator high frequency inversion power supply |
-
2009
- 2009-01-04 CN CNU2009200173984U patent/CN201360223Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664538A (en) * | 2012-05-15 | 2012-09-12 | 南昌工程学院 | High-power-factor dielectric barrier discharge power supply circuit |
| CN104601005A (en) * | 2015-01-30 | 2015-05-06 | 惟能科技（上海）有限公司 | Resonance offset frequency ozone generator power supply |
| CN104767388A (en) * | 2015-04-23 | 2015-07-08 | 大连理工大学 | Ozonator power supply |
| CN106059331A (en) * | 2016-07-22 | 2016-10-26 | 桂林电子科技大学 | Ozonator high frequency inversion power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QINGDAO GUOLIN INDUSTRIES CO., LTD. Free format text: FORMER OWNER: DING XIANGPENG Effective date: 20100412 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100412 Address after: 266031, No. 31 Clear Lake Road, Sifang District, Shandong, Qingdao Patentee after: Qingdao Guolin Industry Co., Ltd. Address before: 266031, No. 31 Clear Lake Road, Sifang District, Shandong, Qingdao Patentee before: Ding Xiangpeng |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 266031 No. 168, Ruichang Road, Sifang District, Shandong, Qingdao Patentee after: Qingdao Guolin Industry Co., Ltd. Address before: 266031, No. 31 Clear Lake Road, Sifang District, Shandong, Qingdao Patentee before: Qingdao Guolin Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20160104 |