CN204633618U - A kind of electric cleaner three-phase high-voltage DC power supply - Google Patents
A kind of electric cleaner three-phase high-voltage DC power supply Download PDFInfo
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- CN204633618U CN204633618U CN201520373676.5U CN201520373676U CN204633618U CN 204633618 U CN204633618 U CN 204633618U CN 201520373676 U CN201520373676 U CN 201520373676U CN 204633618 U CN204633618 U CN 204633618U
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Abstract
The utility model proposes a kind of electric cleaner three-phase high-voltage DC power supply, comprising: voltage regulator control circuit, comprise input switching circuit and controllable silicon phase-shift circuit; Three-phase voltage increasing silicon rectifying transformer, is connected with voltage regulator control circuit, comprises high impedance step-up transformer, three-phase commutation bridge, secondary voltage sample circuit and secondary current sample circuit; Damping resistance, is connected with three-phase voltage increasing silicon rectifying transformer; Primary current sample circuit, is arranged between controllable silicon phase-shift circuit and three-phase voltage increasing silicon rectifying transformer; Input/output interface circuit, be connected with voltage regulator control circuit, three-phase voltage increasing silicon rectifying transformer and primary current sample circuit, comprise three-phase synchronous circuit, current/voltage sampling treatmenting circuit, output driving circuit, thyristor gating circuit and Phototube Coupling amplifying circuit; Control circuit, is connected with input/output interface circuit.The utility model beneficial effect: output dc voltage is steady, reduce fluctuation, improve power quality, reliability is high, and the life-span is long.
Description
Technical field
The utility model relates to three-phase high-voltage DC power supply field, refers to a kind of electric cleaner three-phase high-voltage DC power supply especially.
Background technology
In a lot of environment, especially in waste gas pollution control and treatment, electric cleaner is fit closely dust-collector, and electric cleaner is the equipment utilizing electric power to be separated from air-flow by dust.The purification process of dust-contained airflow in electric cleaner can in three stages: l, gas ionization and dust are charged: between corona discharge electrode and dust collector pole, apply DC high voltage, make the gas ionization near corona discharge electrode, produce a large amount of negative ions.In corona zone, cation is drawn through by corona discharge electrode immediately, and anion is then because moving to dust collector pole by ordering about of electric field force.2, dust deposit: after Charged arrives dust collector pole, releases negative electrical charge and deposits.3, deashing: dust collection is entered ash bucket.
Power supply is one of parts of electric cleaner key.Current electric precipitation power supply is single-phase phase shift power supply, high frequency electric source mainly, although these power supplys are widely used, but there are some shortcomings: the pulsation of single-phase phase shift electric power output voltage is large, the power factor (PF) of power supply is low, be difficult to during actual use ensure three-phase balanced power supply, the mean direct voltage that can provide to electric cleaner is not high, and it is large that high frequency electric source also exists return loss, and the problem that useful life is shorter.
Utility model content
The utility model proposes a kind of electric cleaner three-phase high-voltage DC power supply, the pulsation solving single-phase phase shift electric power output voltage in prior art is large, the power factor (PF) of power supply is low, and be difficult to during actual use ensure three-phase balanced power supply, the mean direct voltage that can provide to electric cleaner is not high; High frequency electric source also exists the large problem of return loss.
The technical solution of the utility model is achieved in that
A kind of electric cleaner three-phase high-voltage DC power supply, comprising:
Voltage regulator control circuit, the controllable silicon phase-shift circuit comprising input switching circuit and be connected with described input switching circuit;
Three-phase voltage increasing silicon rectifying transformer, be connected with described voltage regulator control circuit, the secondary current sample circuit comprising the high impedance step-up transformer be connected with described controllable silicon phase-shift circuit, the three-phase commutation bridge be connected with described high impedance step-up transformer, the secondary voltage sample circuit be connected with described three-phase commutation bridge and be connected with described three-phase commutation bridge;
Damping resistance, is connected with described three-phase voltage increasing silicon rectifying transformer;
Primary current sample circuit, is arranged between described controllable silicon phase-shift circuit and described three-phase voltage increasing silicon rectifying transformer;
Input/output interface circuit, be connected with described voltage regulator control circuit, described three-phase voltage increasing silicon rectifying transformer and described primary current sample circuit, comprise three-phase synchronous circuit, current/voltage sampling treatmenting circuit, output driving circuit, thyristor gating circuit and Phototube Coupling amplifying circuit;
Control circuit, is connected with described input/output interface circuit.
Further, electric cleaner three-phase high-voltage DC power supply described in the utility model, also comprises:
Input unit, is connected with described control circuit.
Further, electric cleaner three-phase high-voltage DC power supply described in the utility model, also comprises:
Display unit, is connected with described control circuit.
Preferably, described input switching circuit comprises three-phase power input end, circuit breaker, contactor and input switch control circuit.
Preferably, described controllable silicon phase-shift circuit comprises three groups of silicon controlled modules, the thyristor diode that described silicon controlled module comprises by both direction is contrary is formed in parallel, described silicon controlled module input is connected with described input switching circuit, and described silicon controlled module output is connected with three-phase voltage increasing silicon rectifying transformer.
Preferably, described control circuit comprises On-off signal output circuit, analog signal isolating treatment circuit, input unit treatment circuit, display apparatus processes circuit and protective circuit.
Further, electric cleaner three-phase high-voltage DC power supply described in the utility model, also comprises:
Electric source filter circuit, described electric source filter circuit input is connected with described voltage regulator control circuit output, and described electric source filter circuit output is connected with described three-phase voltage increasing silicon rectifying transformer input.
The beneficial effects of the utility model are:
Electric cleaner three-phase high-voltage DC power supply described in the utility model, the direct voltage exported is high and steady, reduce alive fluctuation on electric cleaner, be conducive to the efficiency improving the mean direct voltage, electric current and the electric cleaner that export, there is higher power factor (PF), return loss is little, be conducive to energy savings, three phase supply is balanced, is conducive to improving power quality, reliability is high, long service life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of a kind of electric cleaner three-phase high-voltage of the utility model DC power supply embodiment 1;
Fig. 2 is the structured flowchart of a kind of electric cleaner three-phase high-voltage of the utility model DC power supply embodiment 2;
Fig. 3 is the structured flowchart of a kind of electric cleaner three-phase high-voltage of the utility model DC power supply embodiment 3;
Fig. 4 is the structured flowchart of a kind of electric cleaner three-phase high-voltage of the utility model DC power supply embodiment 4;
Fig. 5 is the structured flowchart of a kind of electric cleaner three-phase high-voltage of the utility model DC power supply embodiment 5;
Fig. 6 is the circuit diagram of a kind of electric cleaner three-phase high-voltage of the utility model DC power supply embodiment 6.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in figures 1 to 6, a kind of electric cleaner three-phase high-voltage DC power supply described in the utility model, comprising:
Voltage regulator control circuit, the controllable silicon phase-shift circuit comprising input switching circuit and be connected with input switching circuit;
Three-phase voltage increasing silicon rectifying transformer, be connected with voltage regulator control circuit, comprise the high impedance step-up transformer be connected with controllable silicon phase-shift circuit, the three-phase commutation bridge be connected with high impedance step-up transformer, the secondary voltage sample circuit be connected with three-phase commutation bridge and the secondary current sample circuit be connected with three-phase commutation bridge;
Damping resistance, is connected with three-phase voltage increasing silicon rectifying transformer;
Primary current sample circuit, is arranged between controllable silicon phase-shift circuit and three-phase voltage increasing silicon rectifying transformer;
Input/output interface circuit, be connected with voltage regulator control circuit, three-phase voltage increasing silicon rectifying transformer and primary current sample circuit, comprise three-phase synchronous circuit, current/voltage sampling treatmenting circuit, output driving circuit, thyristor gating circuit and Phototube Coupling amplifying circuit;
Control circuit, is connected with input/output interface circuit.
Wherein, input switching circuit input is connected with three phase mains, to major loop power transmission; Controllable silicon phase-shift circuit is controlled by thyristor gating circuit; Primary current sample circuit at least comprises a current transformer, and the primary current signal of taking-up is delivered to current/voltage sampling treatmenting circuit by it; The secondary current signal of taking-up is delivered to current/voltage sampling treatmenting circuit by the secondary voltage signal of taking-up and secondary current sample circuit by secondary voltage sample circuit; Damping resistance one end is connected with three-phase voltage increasing silicon rectifying transformer, and the other end is connected with electric cleaner, and be used for buffering when electric cleaner discharges, electric cleaner can adopt dry electric precipitation device, also can adopt wet electrical dust precipitator; Input/output interface circuit delivers to control circuit process by after the primary current signal of input, secondary voltage signal and the process of secondary current sample circuit, the triggering signal that control circuit inputs is controlled controllable silicon phase-shift circuit after Phototube Coupling amplifying circuit amplifies simultaneously.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, can also comprise:
Input unit, is connected with control circuit.Wherein, input unit is specifically as follows keyboard, touch-screen etc.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, can also comprise:
Display unit, is connected with control circuit.Wherein, display unit is specifically as follows display, touch-screen etc.
Wherein, preferably, described input switching circuit comprises three-phase power input end, circuit breaker, contactor and input switch control circuit.
Wherein, preferably, described controllable silicon phase-shift circuit comprises three groups of silicon controlled modules, and the thyristor diode that silicon controlled module comprises by both direction is contrary is formed in parallel, silicon controlled module input is connected with input switching circuit, and silicon controlled module output is connected with three-phase voltage increasing silicon rectifying transformer.
Wherein, preferably, described control circuit comprises On-off signal output circuit, analog signal isolating treatment circuit, input unit treatment circuit, display apparatus processes circuit and protective circuit.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, can also comprise:
Electric source filter circuit, electric source filter circuit input is connected with voltage regulator control circuit output, and electric source filter circuit output is connected with three-phase voltage increasing silicon rectifying transformer input.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, the course of work is as follows:
The alternating voltage of input is transformed into one through voltage regulator control circuit and exports adjustable alternating voltage by the three-phase alternating-current supply of input under the triggering signal that input/output interface circuit is sent here controls, this alternating voltage enters three-phase voltage increasing silicon rectifying transformer and converts direct voltage to after electric source filter circuit filtering, and this direct voltage delivers to electric cleaner load through damping resistance.The secondary voltage signal that the primary current signal that primary current sample circuit takes out, secondary voltage sample circuit take out and the secondary current signal that secondary current sample circuit will take out, the three-phase synchronous signal produced by thyristor gating circuit delivers to control circuit after input/output interface circuit process, the signal of input is carried out analyzing and processing by control circuit, produce silicon controlled triggering signal, this triggering signal controls voltage regulator control circuit after input/output interface circuit isolation is amplified.Control circuit is by detecting input signal in real time, and can regulate operating state according to the change of operational factor, display unit shows various operational factor and state in real time, can set kind of a parameter, the start-stop etc. of control appliance by input unit operation.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, can also comprise:
Constant current source control circuit, constant current source control circuit input is connected with voltage regulator control circuit output, and constant current source control circuit output is connected with three-phase voltage increasing silicon rectifying transformer input.Wherein, constant current source control circuit can make high-voltage rectifying output current be steady state value, regulates constant current source control circuit can the size of regulation output electric current, and the size of output current is by the impact of load variations.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, can also comprise:
Start buffer circuit, start buffer circuit input and be connected with voltage regulator control circuit output, start buffer circuit output and be connected with three-phase voltage increasing silicon rectifying transformer input.Wherein, start buffer circuit and can realize slow opening and closing, the impact that electric cleaner three-phase high-voltage DC power supply described in the utility model is subject to drops to minimum, improves the reliability of equipment, extends useful life.
Wherein, when electric cleaner three-phase high-voltage DC power supply described in the utility model comprises electric source filter circuit, constant current source control circuit and startup buffer circuit simultaneously, voltage regulator control circuit, electric source filter circuit, constant current source control circuit, startup buffer circuit can be connected in turn with three-phase voltage increasing silicon rectifying transformer.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, can also comprise:
Isolating switch, one end and three-phase voltage increasing silicon rectifying transformer, the other end is connected with damping resistance.Wherein, isolating switch can realize opening and closing load, improves the safety and reliability of equipment.
In the circuit diagram of electric cleaner three-phase high-voltage DC power supply embodiment 6 described in the utility model, A, B, C are three phase mains, QS is circuit breaker, K is contactor, TA forms primary current sample circuit, R1 forms secondary current sample circuit, R2 and R3 forms secondary voltage sample circuit, and R4 is damping resistance.
Electric cleaner three-phase high-voltage DC power supply described in the utility model, the direct voltage exported is high and steady, reduce alive fluctuation on electric cleaner, be conducive to the efficiency improving the mean direct voltage, electric current and the electric cleaner that export, there is higher power factor (PF), return loss is little, be conducive to energy savings, three phase supply is balanced, is conducive to improving power quality, reliability is high, long service life.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. an electric cleaner three-phase high-voltage DC power supply, is characterized in that, comprising:
Voltage regulator control circuit, the controllable silicon phase-shift circuit comprising input switching circuit and be connected with described input switching circuit;
Three-phase voltage increasing silicon rectifying transformer, be connected with described voltage regulator control circuit, the secondary current sample circuit comprising the high impedance step-up transformer be connected with described controllable silicon phase-shift circuit, the three-phase commutation bridge be connected with described high impedance step-up transformer, the secondary voltage sample circuit be connected with described three-phase commutation bridge and be connected with described three-phase commutation bridge;
Damping resistance, is connected with described three-phase voltage increasing silicon rectifying transformer;
Primary current sample circuit, is arranged between described controllable silicon phase-shift circuit and described three-phase voltage increasing silicon rectifying transformer;
Input/output interface circuit, be connected with described voltage regulator control circuit, described three-phase voltage increasing silicon rectifying transformer and described primary current sample circuit, comprise three-phase synchronous circuit, current/voltage sampling treatmenting circuit, output driving circuit, thyristor gating circuit and Phototube Coupling amplifying circuit;
Control circuit, is connected with described input/output interface circuit.
2. electric cleaner three-phase high-voltage DC power supply according to claim 1, is characterized in that, also comprise:
Input unit, is connected with described control circuit.
3. electric cleaner three-phase high-voltage DC power supply according to claim 2, is characterized in that, also comprise:
Display unit, is connected with described control circuit.
4. electric cleaner three-phase high-voltage DC power supply according to claim 1, is characterized in that, described input switching circuit comprises three-phase power input end, circuit breaker, contactor and input switch control circuit.
5. electric cleaner three-phase high-voltage DC power supply according to claim 1, it is characterized in that, described controllable silicon phase-shift circuit comprises three groups of silicon controlled modules, the thyristor diode that described silicon controlled module comprises by both direction is contrary is formed in parallel, described silicon controlled module input is connected with described input switching circuit, and described silicon controlled module output is connected with three-phase voltage increasing silicon rectifying transformer.
6. electric cleaner three-phase high-voltage DC power supply according to claim 1; it is characterized in that, described control circuit comprises On-off signal output circuit, analog signal isolating treatment circuit, input unit treatment circuit, display apparatus processes circuit and protective circuit.
7. electric cleaner three-phase high-voltage DC power supply according to claim 1, is characterized in that, also comprise:
Electric source filter circuit, described electric source filter circuit input is connected with described voltage regulator control circuit output, and described electric source filter circuit output is connected with described three-phase voltage increasing silicon rectifying transformer input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373676.5U CN204633618U (en) | 2015-06-03 | 2015-06-03 | A kind of electric cleaner three-phase high-voltage DC power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520373676.5U CN204633618U (en) | 2015-06-03 | 2015-06-03 | A kind of electric cleaner three-phase high-voltage DC power supply |
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| CN204633618U true CN204633618U (en) | 2015-09-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969866A (en) * | 2020-07-29 | 2020-11-20 | 湖北襄整整流器有限公司 | Current-limiting control method for rectifier bridge |
| CN113996444A (en) * | 2021-10-29 | 2022-02-01 | 咸宁南玻玻璃有限公司 | Closed-loop control system for high-voltage electrostatic dust removal |
-
2015
- 2015-06-03 CN CN201520373676.5U patent/CN204633618U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969866A (en) * | 2020-07-29 | 2020-11-20 | 湖北襄整整流器有限公司 | Current-limiting control method for rectifier bridge |
| CN113996444A (en) * | 2021-10-29 | 2022-02-01 | 咸宁南玻玻璃有限公司 | Closed-loop control system for high-voltage electrostatic dust removal |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 321000 599 peak street, Wucheng District, Jinhua, Zhejiang, 599 Patentee after: Jinhua Zhonghe Environmental Protection Technology Co., Ltd. Address before: 321000 Jinhua, Zhejiang, 966 Jin Fan street, science and technology incubator base 1, 2 floor, 210 rooms. Patentee before: Jinhua Zhonghe Environmental Protection Technology Co., Ltd. |
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| CP02 | Change in the address of a patent holder |