CN211801653U - High-voltage power supply of oil fume purifier - Google Patents
High-voltage power supply of oil fume purifier Download PDFInfo
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- CN211801653U CN211801653U CN202020386380.8U CN202020386380U CN211801653U CN 211801653 U CN211801653 U CN 211801653U CN 202020386380 U CN202020386380 U CN 202020386380U CN 211801653 U CN211801653 U CN 211801653U
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Abstract
The utility model discloses a high-voltage power supply of an oil fume purifier, which belongs to the technical field of oil fume purification equipment power supplies, and comprises a main circuit and a control circuit, wherein the main circuit comprises a rectification filter circuit, an inverter circuit connected with the rectification filter circuit and a voltage-doubling rectifier circuit connected with the inverter circuit; the control circuit comprises a drive circuit of the high-voltage pack and a control power supply connected with the output end of the drive circuit; and the driving circuit of the high-voltage pack is supplied to the high-voltage pack through the controllable high-voltage switch. The utility model discloses energy-efficient, stability is high, but output high pressure continuous regulation realizes functions such as power output pressure regulating and excessive pressure overcurrent protection simultaneously, and possesses arcing suppression protection, punctures discharge protection, effectively improves the fault rate of the security performance core part of clarifier, and the fault rate < 0.1%/year.
Description
Technical Field
The utility model relates to an oil smoke clarification plant power technical field, concretely relates to oil smoke clarifier high voltage power supply.
Background
With the rapid development of the catering industry, a large amount of high-concentration oil smoke is generated in the food processing of restaurants and restaurants kitchens in the operation process of the working procedures of frying, stir-frying, boiling, frying and the like, and oil smoke condensate in a high-temperature state has strong carcinogenic and mutagenic effects. The oil fume is discharged to the outdoor without any treatment, which not only pollutes the living environment of surrounding residents, but also discharges a large amount of hydrocarbon contained in the oil fume to the atmosphere, and is easy to be mixed with other dust to form inhalable particles, thus damaging the atmospheric quality condition. Therefore, the oil smoke purifier is of vital importance, can effectively and fully adsorb, decompose and carbonize oil smoke, and finally discharges gas reaching the standard, and only with a good power supply, the quality of the oil smoke purifier can be guaranteed. When the existing high-voltage power supply encounters sundries, the output voltage cannot be continuously adjusted, output voltage regulation and overvoltage and overcurrent protection are lacked, the stability is poor, and the failure rate is high.
The patent with publication number CN204231198U discloses a purified high-voltage power supply, which mainly comprises a power circuit and a control circuit, wherein the power circuit comprises an input protection circuit, a 220V alternating current rectification circuit, a half-bridge inverter circuit, a transformer booster circuit and a subsequent voltage doubling rectification circuit, and the circuits are sequentially connected; the control circuit stabilizes the voltage output by the power circuit. The power supply replaces the existing power frequency high-voltage power supply, the power supply use efficiency is improved, and the product quality is more stable and reliable. But the power supply can not realize power supply output voltage regulation and overvoltage and overcurrent protection at the same time.
Disclosure of Invention
In view of this, the utility model provides a lampblack purifier high voltage power supply.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a high-voltage power supply of an oil fume purifier comprises a main circuit and a control circuit, wherein the main circuit comprises a rectifying filter circuit, an inverter circuit connected with the rectifying filter circuit and a voltage-multiplying rectifying circuit connected with the inverter circuit; the control circuit comprises a drive circuit of the high-voltage pack and a control power supply connected with the output end of the drive circuit; and the driving circuit of the high-voltage pack is supplied to the high-voltage pack through the controllable high-voltage switch.
Further, the high-voltage package is connected to the plug-in CN2, and the voltage and current samples of the high-voltage package are respectively connected to the output voltage sampling circuit and the output current sampling circuit at the port CN2.2/1 of the plug-in CN2, the output voltage sampling circuit is connected to the voltage adjusting circuit, and the output current sampling circuit is connected to the current control circuit.
Furthermore, the voltage adjusting circuit and the current control circuit are respectively connected with the output voltage setting potentiometer and the current protection potentiometer, the voltage adjusting circuit and the current control circuit compare a set value with a sampling value to generate an output adjusting instruction, and the output adjusting instruction is transmitted to the high-voltage output adjusting circuit to be executed, so that the high-voltage package is driven to work.
Further, the signal of the output voltage sampling circuit is sent to the high-voltage no-voltage protection circuit, fault analysis is carried out according to the output voltage, and the result is sent to the fault protection circuit.
Furthermore, the signal of the output current sampling circuit is sent to the current limit protection circuit, fault analysis is carried out according to the output current, and the result is sent to the fault protection circuit.
Further, the fault protection circuit controls the high-voltage switch to be closed according to the protection instruction, and meanwhile, the power-on delayer and the fault delayer control the high-voltage switch to be restarted in a delayed mode.
Further, the signal of the output voltage sampling circuit is simultaneously sent to a protection indication comparator and a working indication comparator, and the comparison results of the protection indication comparator and the working indication comparator respectively drive indicator lamps connected to ports CN1.5/6 of the plug-in CN1.
The utility model has the advantages that:
the utility model discloses a high voltage power supply cooperation high voltage electric field uses, and small particle size oil mist particle among the oil smoke clarifier gets into high voltage electric field, and high voltage electric field adopts the electrostatic working principle of the high-low pressure separation of two-stage type, and the electric field of first order ionization polar plate makes small particle size oil mist particle lotus electricity become charged particle, is adsorbed and carbomorphism immediately after these charged particle reachs the second grade adsorption polar plate. In the process, the high-voltage power supply starts fault protection, the fault protection circuit controls the high-voltage switch to be closed according to a protection instruction, the power-on delayer and the fault delayer control the high-voltage switch to be restarted in a delayed mode, after foreign matters are eliminated, the high-voltage switch is disconnected, and the circuit works normally.
The utility model discloses change Ac220V electric wire netting electric energy into the high voltage power supply of special type form, high voltage direct current power supply can divide into positive polarity and negative polarity two kinds according to the output voltage polarity. The high-voltage power supply mainly adopts a switching power supply technology, a PWM wave generating chip is made into a high-frequency high-voltage power supply by SG3525 (integrated PWM control chip), and the functions of power supply output voltage regulation, overvoltage and overcurrent protection and the like are realized.
The utility model discloses possess simultaneously:
arcing suppression protection: the discharge spark energy is very small, and the safety is higher than that of a common power supply.
Breakdown discharge protection: when high voltage breakdown occurs, the high voltage output is instantly reduced and then rapidly recovered.
Overheat protection: the power supply can be automatically shut down and send out an overheat warning when the power supply is overheated, and the normal work can be automatically recovered when the temperature is reduced.
Open circuit protection: once the output is detected to be open, the high-voltage output is quickly closed to prevent the power supply from being damaged by the overhigh voltage, and the delay time is automatically recovered for 2 s.
Short-circuit protection: the electric field has short-circuit fault, and the power supply can automatically protect and avoid damage and simultaneously send out circuit fault indication.
The utility model discloses energy-efficient, stability is high, but output high pressure continuous regulation realizes functions such as power output pressure regulating and excessive pressure overcurrent protection simultaneously, and possesses arcing suppression protection, punctures discharge protection, effectively improves the fault rate of the security performance core part of clarifier, and the fault rate < 0.1%/year.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of the high voltage power supply of the present invention.
Fig. 2 is a schematic circuit diagram of the high voltage power supply of the present invention.
Fig. 3 is an electrical diagram of the output voltage of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
Examples
As shown in fig. 1-3, the present embodiment provides a high-voltage power supply for an oil fume purifier, where the high-voltage power supply includes a main circuit and a control circuit, the main circuit includes a rectifier and filter circuit, an inverter circuit connected to the rectifier and filter circuit, and a voltage-doubler rectifier circuit connected to the inverter circuit; the control circuit comprises a drive circuit of the high-voltage pack and a control power supply connected with the output end of the drive circuit; and the driving circuit of the high-voltage pack is supplied to the high-voltage pack through the controllable high-voltage switch.
The high-voltage package is connected to the plug-in CN2, the voltage and current samples of the high-voltage package are respectively connected to the output voltage sampling circuit and the output current sampling circuit at a port CN2.2/1 of the plug-in CN2, the output voltage sampling circuit is connected with the voltage adjusting circuit, and the output current sampling circuit is connected with the current control circuit.
The voltage adjusting circuit and the current control circuit are respectively connected with the output voltage setting potentiometer and the current protection potentiometer, the voltage adjusting circuit and the current control circuit compare a set value with a sampling value to generate an output adjusting instruction, and the output adjusting instruction is transmitted to the high-voltage output adjusting circuit to be executed, so that the high-voltage package is driven to work.
And the signal of the output voltage sampling circuit is sent to the high-voltage no-voltage protection circuit, fault analysis is carried out according to the output voltage, and the result is sent to the fault protection circuit.
The signal of the output current sampling circuit is sent to the current limit protection circuit, fault analysis is carried out according to the output current, and the result is sent to the fault protection circuit.
And the fault protection circuit controls the high-voltage switch to be closed according to the protection instruction, and simultaneously starts the power-on delayer and the fault delayer to control the high-voltage switch to be restarted in a delayed mode.
The signal of the output voltage sampling circuit is simultaneously sent to a protection indication comparator and a work indication comparator, and the comparison results of the protection indication comparator and the work indication comparator respectively drive indicator lamps connected to ports CN1.5/6 of a plug-in CN1.
The 220V power input is connected to a port CN1.1/2 of the plug CN1, and a port CN1.3/4 of the plug CN1 is grounded; plug CN3 is connected to the working indication comparator through a link switch.
The working principle is as follows: the commercial power 220V/50 Hz/is converted into about 300V direct current voltage after full-bridge rectification and filtration, and the adjustable direct current voltage of 0-300V is obtained through Buck conversion of PWM. Then the direct current is inverted into high-frequency voltage through DC/AC, the voltage is changed into about 15kV through a resonance circuit and a high-frequency transformer, and the required voltage is obtained through voltage doubling rectification. The DSP system provides a given signal of voltage output amplitude for the DC/DC link, receives a feedback signal from the DC/DC link at the same time, reacts in real time and controls the magnitude of the output voltage of the DC/DC link. For the DC/DC link, the DSP system controls the on-off of 4 IGBTs in the inversion link by outputting 4 paths of PWM signals with adjustable pulse width, receives feedback action signals and controls the pulse width of 4 paths of PWM signals to achieve the purpose of controlling the output voltage of the inversion link.
The output voltage is divided into a high-voltage end and a low-voltage end, the output range of the low-voltage end is 5-9 kV, the output range of the high-voltage end is 10-18 kV, the voltage output of the low-voltage end and the voltage output of the high-voltage end are continuously adjustable, and the electrical diagram is shown in figure 3.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The high-voltage power supply of the oil fume purifier is characterized in that: the high-voltage power supply comprises a main circuit and a control circuit, wherein the main circuit comprises a rectification filter circuit, an inverter circuit connected with the rectification filter circuit and a voltage-doubling rectification circuit connected with the inverter circuit; the control circuit comprises a drive circuit of the high-voltage pack and a control power supply connected with the output end of the drive circuit; and the driving circuit of the high-voltage pack is supplied to the high-voltage pack through the controllable high-voltage switch.
2. A high-voltage power supply for a lampblack purifier as claimed in claim 1, wherein: the high-voltage package is connected to the plug-in CN2, the voltage and current samples of the high-voltage package are respectively connected to the output voltage sampling circuit and the output current sampling circuit at a port CN2.2/1 of the plug-in CN2, the output voltage sampling circuit is connected with the voltage adjusting circuit, and the output current sampling circuit is connected with the current control circuit.
3. A high-voltage power supply for a soot cleaner as defined in claim 2, wherein: the voltage adjusting circuit and the current control circuit are respectively connected with the output voltage setting potentiometer and the current protection potentiometer, the voltage adjusting circuit and the current control circuit compare a set value with a sampling value to generate an output adjusting instruction, and the output adjusting instruction is transmitted to the high-voltage output adjusting circuit to be executed, so that the high-voltage package is driven to work.
4. A high-voltage power supply for a lampblack purifier as claimed in claim 3, wherein: and the signal of the output voltage sampling circuit is sent to the high-voltage no-voltage protection circuit, fault analysis is carried out according to the output voltage, and the result is sent to the fault protection circuit.
5. A high-voltage power supply for a lampblack purifier as claimed in claim 4, wherein: the signal of the output current sampling circuit is sent to the current limit protection circuit, fault analysis is carried out according to the output current, and the result is sent to the fault protection circuit.
6. A high-voltage power supply for a lampblack purifier as claimed in claim 5, wherein: and the fault protection circuit controls the high-voltage switch to be closed according to the protection instruction, and simultaneously starts the power-on delayer and the fault delayer to control the high-voltage switch to be restarted in a delayed mode.
7. A high-voltage power supply for a lampblack purifier as claimed in claim 6, wherein: the signal of the output voltage sampling circuit is simultaneously sent to a protection indication comparator and a work indication comparator, and the comparison results of the protection indication comparator and the work indication comparator respectively drive indicator lamps connected to ports CN1.5/6 of a plug-in CN1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386380.8U CN211801653U (en) | 2020-03-24 | 2020-03-24 | High-voltage power supply of oil fume purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386380.8U CN211801653U (en) | 2020-03-24 | 2020-03-24 | High-voltage power supply of oil fume purifier |
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| Publication Number | Publication Date |
|---|---|
| CN211801653U true CN211801653U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020386380.8U Active CN211801653U (en) | 2020-03-24 | 2020-03-24 | High-voltage power supply of oil fume purifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN211801653U (en) |
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2020
- 2020-03-24 CN CN202020386380.8U patent/CN211801653U/en active Active
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