Method and device for improving ion balance stability of a power eliminator

Abstract

The application discloses a method and device for improving ion balance stability of an electrostatic eliminator, belonging to the field of electrostatic elimination. A set of electric reactance elements are connected in series between a low-voltage electrode and a grounding end of the electrostatic eliminator. By setting the electric reactance value of the electric reactance elements, the creeping distance or / and the electric gap between each high-voltage discharge electrode or between each high-voltage discharge electrode and the low-voltage electrode between the high-voltage discharge electrodes is adjusted, and the high-voltage amplitude is automatically adjusted, so that the potential difference between the high-voltage discharge electrode and the low-voltage electrode connected to the ground is a variable value. By forming a dynamic potential difference between the high-voltage electrode and the low-voltage electrode, which is associated with the ionization / discharge state, self-adjustment of the discharge intensity and dynamic balance of the positive and negative ion generation amount of the electrostatic eliminator are realized, and the unbalanced fluctuation between the positive and negative ions is suppressed. The operation of manually adjusting the ion balance on site can be omitted, and the use cost is saved. The application can be widely used in the fields of design and manufacture of various active electrostatic elimination devices.

Description

Technical Field

[0001] This invention belongs to the field of active electrostatic elimination, and particularly relates to a method and apparatus for improving the ion balance stability of electrostatic eliminators. Background Technology

[0002] During prolonged use, static eliminators experience a gradual loss of electrical balance in their positive and negative ion output due to dust accumulation on the electrode needles and electrode wear caused by high-voltage erosion. This means the ratio of positive to negative ions produced during ionization gradually increases (either >1:1 or <1:1), deteriorating the ionization balance. Consequently, the surface of the eliminated product accumulates more unipolar static charge (positive or negative), increasing the static voltage and increasing the risk of electrostatic discharge, posing a significant safety hazard. Therefore, this practical problem urgently needs to be addressed.

[0003] The existing static eliminator (referred to as an eliminator) has a discharge structure where the discharge needle (also called the discharge electrode or high-voltage discharge electrode; for DC eliminators, it is the positive and negative high-voltage discharge electrode) is connected to the high-voltage circuit for a high-voltage setting, while the matching low-voltage electrode (for rod-type eliminators, it can be called the side electrode; for fan-type eliminators, it can be called the metal mesh electrode) is directly electrically connected to the ground (referred to as grounding). Figure 1 , 2 As shown, the side electrode 3 of the rod-shaped extinguishing device is directly connected to the ground wire (also known as direct grounding).

[0004] Figure 1 In the case of a rod-type AC extinguishing device, the positive and negative ions ionized by the high-voltage AC discharge electrode (AC discharge electrode 2) located in the rod body 1 will move along the electric field lines (electric field lines) 4 between the high-voltage discharge electrode and the grounded side electrode 3. Some of the positive and negative ions will move to the grounded side electrode and then be introduced into the ground. The potential on the grounded side electrode is always zero, so the potential difference between the high-voltage discharge electrode and the grounded side electrode is always a fixed value.

[0005] Figure 2The positive high-voltage discharge electrode 5 and negative high-voltage discharge electrode 6 of the medium rod type DC extinguishing device ionize positive and negative ions respectively. The positive and negative ions will move along the electric field lines 4 between the positive and negative high-voltage discharge electrodes and the electric field lines between each other and their corresponding grounding side electrodes. Some of the positive and negative ions will move to their respective grounding side electrodes and then be conducted into the ground. The potential on the grounding side electrode 3 is always zero, so the potential difference between the positive and negative high-voltage discharge electrodes and their respective grounding side electrodes is always a fixed value.

[0006] like Figure 3 , 4 As shown ( Figure 3 It is a fan-type AC extinguishing device. Figure 4 (This is a fan-type DC extinguishing device). The metal mesh electrode 10 of the fan-type extinguishing device is directly connected to the ground wire. The high-voltage discharge electrode 9 generates corona discharge on the grounded metal mesh electrode, forming a spatial electric field. Positive and negative ions move towards the mesh electrode along the electric field lines and are carried to distant areas by the fan air 11. During this process, some positive and negative ions will move to the grounded metal mesh electrode and then be conducted into the ground. The potential on the grounded metal mesh electrode is always zero, so the potential difference between the high-voltage discharge electrode and the grounded metal mesh electrode is always a fixed value.

[0007] The existing technical solutions have the following technical defects:

[0008] 1) Because the aforementioned low-voltage electrode adopts a direct grounding mode, its potential is always zero, and the potential difference between the high-voltage discharge electrode and the low-voltage electrode is always fixed and does not change with time.

[0009] 2) Positive and negative ions ionized from the high-voltage discharge electrode will have a space charge field near the low-voltage electrode, and some of the positive and negative ions will move to the low-voltage electrode. Since the low-voltage electrode is directly grounded, a dynamic potential cannot be formed on the low-voltage electrode, and consequently, a dynamic potential difference cannot be formed between the high-voltage discharge electrode and the low-voltage electrode. The dynamic potential difference between the high-voltage discharge electrode and the low-voltage electrode is beneficial for smoothing out the fluctuations caused by the imbalance of positive and negative ions. Therefore, the existing method of directly grounding the low-voltage electrode is not conducive to the electrical balance of positive and negative ions. Summary of the Invention

[0010] The technical problem to be solved by this invention is to provide a method and apparatus for improving the ion balance stability of a power stunner. It involves connecting a set of resistive-capacitive or reactive elements (or components) in series between the side electrode (also known as the low-voltage electrode) of the power stunner and ground. By setting the reactance value of the resistive-capacitive or reactive elements (or components), the creepage distance and / or electrical clearance between each high-voltage discharge electrode, or between each high-voltage discharge electrode and the low-voltage electrode located between the high-voltage discharge electrodes, are adjusted in a coordinated manner. The high-voltage amplitude is automatically adjusted so that the potential difference between the high-voltage discharge electrode and the grounded low-voltage electrode is an adjustable value. This achieves self-regulation of the discharge strength of the power stunner and dynamic electrical balance of the positive and negative ion generation, eliminating the need for manual adjustment of the ion balance on-site and saving on operating costs.

[0011] The technical solution of this invention is: to provide a method for improving the ion balance stability of a scavenger, comprising setting at least one set of high-voltage discharge electrodes and a low-voltage electrode used in conjunction with them on the scavenger; characterized in that:

[0012] 1) Install a set of reactor components;

[0013] 2) Connect one end of the reactor assembly to the low-voltage electrode and ground the other end of the reactor assembly;

[0014] 3) Apply a voltage to the high-voltage discharge electrode to induce corona discharge and produce an ionization effect;

[0015] 4) Adjust the voltage amplitude applied to the high voltage electrode and set / modulate the reactance value of the reactance component so that the potential difference between the high voltage electrode and the low voltage electrode is greater than the corona initiation voltage;

[0016] 5) Adjust the high voltage amplitude applied to the high voltage electrode and set / modulate the reactance value of the reactance component so that the amount of ions generated by the ionizer meets the industry standard requirements for the ionization performance of the ionizer;

[0017] 6) At the same time, adjust the creepage distance and / or electrical clearance between the high-voltage electrode and the low-voltage electrode, adjust the high voltage amplitude of the high-voltage electrode, and set / modulate the reactance value of the reactance component so that the amount of ions generated by the ionizer meets the industry standard requirements for the ionization performance of the ionizer.

[0018] 7) A dynamic potential difference associated with the ionization / discharge state is formed between the high-voltage electrode and the low-voltage electrode;

[0019] 8) The extinguishing device is in an ionization / discharge operation mode based on dynamic potential difference;

[0020] 9) By suppressing the imbalance fluctuations between positive and negative ions generated by the scavenger, the scavenger's discharge strength can be automatically adjusted and the dynamic electrical balance of the positive and negative ion generation can be achieved.

[0021] Specifically, the reactance component is a resistor-capacitor component used to generate a reactance value between the low-voltage electrode and the ground terminal.

[0022] Furthermore, the reactance value of the aforementioned resistor-capacitor component is adjustable.

[0023] For AC ionizers, the method for improving the ion balance stability of ionizers described in this invention achieves the ionization / discharge operation mode based on dynamic potential difference in the following manner:

[0024] 1) Set up a set of resistor-capacitor components;

[0025] 2) Connect one end of the resistor-capacitor assembly to the low-voltage electrode and ground the other end of the assembly;

[0026] 3) Apply an AC voltage to the high-voltage discharge electrode to induce corona discharge and produce an ionization effect;

[0027] 4) Adjust the AC high voltage amplitude and set / modulate the reactance value of the resistor-capacitor component so that the potential difference between the high voltage electrode and the low voltage electrode is greater than the corona initiation voltage.

[0028] 5) Adjust the AC high voltage amplitude and set / modulate the reactance value of the resistor-capacitor components so that the amount of ions generated by ionization meets the industry standard requirements for the static elimination performance of the static eliminator;

[0029] 6) At the same time, adjust the creepage distance and / or electrical clearance between the high-voltage electrode and the low-voltage electrode, adjust the AC high-voltage amplitude, and set / modulate the reactance value of the component so that the amount of ions generated by ionization meets the industry standard requirements for the static elimination performance of the static eliminator.

[0030] 7) A dynamic potential difference associated with the ionization / discharge state is formed between the high-voltage electrode and the low-voltage electrode;

[0031] 8) The extinguishing device is in an ionization / discharge operation mode based on dynamic potential difference;

[0032] 9) The ion generator dynamically and in real time suppresses the imbalance fluctuations between positive and negative ions generated by the ion generator.

[0033] Furthermore, steps 5) and 6) are performed in a coordinated manner.

[0034] For DC extinguishing devices, the method for improving the ion balance stability of extinguishing devices described in this invention achieves the ionization / discharge operation mode based on dynamic potential difference in the following manner:

[0035] 1) Install a set of positive high-voltage discharge electrodes and a set of positive low-voltage electrodes on the DC extinguishing device; install a set of negative high-voltage discharge electrodes and a set of negative low-voltage electrodes.

[0036] 2) Set up at least two sets of resistor-capacitor components;

[0037] 3) Connect one end of the first resistor-capacitor assembly to the positive low-voltage electrode and ground the other end of the first resistor-capacitor assembly; connect one end of the second resistor-capacitor assembly to the negative low-voltage electrode and ground the other end of the second resistor-capacitor assembly.

[0038] 4) Apply a positive DC voltage to the positive high-voltage discharge electrode to induce positive corona discharge and produce an ionization effect; apply a negative DC voltage to the negative high-voltage discharge electrode to induce negative corona discharge and produce an ionization effect.

[0039] 5) Adjust the amplitude of the positive DC high voltage and set / modulate the reactance value of the first RC component so that the potential difference between the positive high voltage electrode and the positive low voltage electrode is greater than the positive DC corona initiation voltage; adjust the amplitude of the negative DC high voltage and set / modulate the reactance value of the second RC component so that the potential difference between the negative high voltage electrode and the negative low voltage electrode is greater than the negative DC corona initiation voltage.

[0040] 6) Adjust the amplitude of the positive and negative DC high voltage, and set / modulate the reactance values ​​of the first and second resistor-capacitor components so that the amount of positive and negative ions generated by ionization meets the industry standard requirements for the static elimination performance of the static eliminator;

[0041] 7) Adjust the creepage distance and / or electrical clearance between the positive DC high voltage electrode and the positive low voltage electrode, and adjust the positive DC high voltage amplitude in coordination, and set / modulate the reactance value of the first RC component so that the amount of positive ions generated by ionization meets the industry standard requirements for the static elimination performance of the static eliminator;

[0042] 8) Adjust the creepage distance and / or electrical clearance between the negative DC high voltage electrode and the negative low voltage electrode, and adjust the amplitude of the negative DC high voltage in coordination, and set / modulate the reactance value of the second RC component so that the amount of negative ions generated by ionization meets the industry standard requirements for the static elimination performance of the static eliminator;

[0043] 9) Adjust the creepage distance and / or electrical clearance between the positive DC high voltage electrode and the negative DC high voltage electrode, as well as the creepage distance and / or electrical clearance between the positive and negative DC high voltage electrodes and the low voltage electrode located between the positive and negative high voltage electrodes, and coordinately adjust the amplitude of the positive and negative DC high voltage, set / modulate the reactance value of the first and second RC components, so that the amount of positive and negative ions generated by ionization meets the industry standard requirements for the static electricity elimination performance of the static electricity elimination device;

[0044] 10) A dynamic potential difference between the high-voltage and low-voltage electrodes, which is associated with the ionization / discharge state, is formed between the positive and negative DC high-voltage electrodes and the corresponding positive and negative low-voltage electrodes.

[0045] 11) Form an ionization / discharge working mode based on dynamic potential difference.

[0046] Furthermore, steps 6), 7), 8), and 9) are performed in a coordinated manner.

[0047] The technical solution of the present invention also provides an AC discharge device employing the above-mentioned method for improving the ion balance stability of the discharge device, comprising an AC discharge electrode disposed in an insulating rod and a side electrode disposed on the insulating rod, characterized in that:

[0048] A resistor-capacitor assembly is connected in series between the side electrode and the ground terminal. The resistor-capacitor assembly can be composed of a single resistor element, a single capacitor element, or a group of resistors and capacitors connected in parallel or in a mixed configuration.

[0049] The technical solution of the present invention also provides a DC power elimination device employing the above-mentioned method for improving the ion balance stability of the power elimination device, comprising a positive high-voltage discharge electrode and a negative high-voltage discharge electrode disposed in an insulating rod, and a positive low-voltage electrode and a negative low-voltage electrode correspondingly disposed on the insulating rod; characterized in that:

[0050] A resistor-capacitor assembly is connected in series between the positive low-voltage electrode and / or the negative low-voltage electrode and the ground terminal. The resistor-capacitor assembly can be composed of a single resistor element, a single capacitor element, or a group of resistors and capacitors connected in parallel or in a mixed configuration.

[0051] Furthermore, an intermediate electrode is provided on the rod between the positive high-voltage discharge electrode and the negative high-voltage discharge electrode. An intermediate resistor-capacitor assembly is connected in series between the intermediate electrode and the grounding terminal. The intermediate resistor-capacitor assembly can be composed of a single resistor element, a single capacitor element, or a group of resistors and capacitors connected in parallel or in a mixed configuration.

[0052] The technical solution of the present invention also provides a fan-type AC extinguisher or a fan-type DC extinguisher that employs the above-mentioned method for improving the ion balance stability of the extinguisher, comprising a metal mesh electrode, characterized in that:

[0053] A resistor-capacitor assembly is connected in series between the metal mesh electrode and the grounding terminal. The resistor-capacitor assembly can be composed of a single resistor element, a single capacitor element, or a group of resistors and capacitors connected in parallel or in a mixed configuration.

[0054] Compared with the prior art, the advantages of the present invention are:

[0055] 1. By electrically connecting a reactive element between the low-voltage electrode and "ground", and then connecting it to the ground wire, the self-adjustment of the discharge strength of the extinguishing device and the dynamic electrical balance of the positive and negative ion generation of the extinguishing device are realized.

[0056] 2. By adopting this technical solution, a dynamic potential difference can be formed between the high-voltage discharge electrode and the low-voltage electrode, which can suppress the imbalance fluctuations between positive and negative ions;

[0057] 3. By adjusting the product performance at the factory, the need for on-site manual adjustment of ion balance can be eliminated, thus saving on usage costs. Attached Figure Description

[0058] Figure 1 Schematic diagram of electrode setup for a rod-type AC extinguisher;

[0059] Figure 2 Schematic diagram of electrode setup for a rod-type DC extinguishing device;

[0060] Figure 3 Schematic diagram of electrode setup for a fan-type AC extinguishing device;

[0061] Figure 4 Schematic diagram of electrode setup for a fan-type DC power extinguisher;

[0062] Figure 5 This is a schematic diagram of the method for improving the ion balance stability of an electrostatic precipitator according to the present invention;

[0063] Figure 6 This is a schematic diagram of another method for improving the ion balance stability of the electrostatic precipitator according to the present invention;

[0064] Figure 7 This is a schematic diagram of the electrode arrangement of the rod-shaped AC extinguishing device of the present invention;

[0065] Figure 8 This is a schematic diagram of another rod-shaped AC extinguishing device electrode configuration according to the present invention;

[0066] Figure 9 This is a schematic diagram of the electrode arrangement of another rod-shaped AC extinguishing device according to the present invention;

[0067] Figure 10 This is another method flowchart of the present invention;

[0068] Figure 11 This is a schematic diagram of the electrode arrangement of the rod-shaped DC extinguishing device of the present invention;

[0069] Figure 12 This is a schematic diagram of another rod-shaped DC extinguishing electrode configuration according to the present invention;

[0070] Figure 13 This is a schematic diagram of the electrode arrangement of another rod-shaped DC extinguishing device according to the present invention;

[0071] Figure 14 This is a schematic diagram of the electrode arrangement of the fan-type AC extinguishing device of the present invention;

[0072] Figure 15 This is a schematic diagram of the electrode arrangement of the fan-type DC power extinguisher of the present invention;

[0073] Figure 16-1This is a schematic diagram showing the amplitude variation of the potential difference during the positive half-cycle.

[0074] Figure 16-2 This is a schematic diagram showing the amplitude change of the potential difference during the negative half-cycle.

[0075] In the figure, 1 is the insulating rod, 2 is the AC discharge electrode, 3 is the side electrode, 3a is the positive low voltage electrode, 3b is the negative low voltage electrode, 4 is the space electric field line, 5 is the positive high voltage discharge electrode, 6 is the negative high voltage discharge electrode, 7 is the fan casing, 8 is the fan, 9 is the metal discharge electrode, 10 is the metal mesh electrode, 11 is the airflow direction, and 12 is the middle electrode.

[0076] ~HV represents AC high voltage, +HV represents DC positive high voltage, and -HV represents DC negative high voltage. Detailed Implementation

[0077] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0078] See Figure 5 As shown, the technical solution of the present invention is to set a set of high-voltage discharge electrodes and a set of low-voltage electrodes on the extinguishing device, connect one end of a reactor element (or component) to the low-voltage electrode, and ground the other end of the reactor element (or component). In fact, a set of reactor elements (or components) are connected in series between the low-voltage electrode and "ground".

[0079] Then a voltage is applied to the high-voltage discharge electrode to cause corona discharge and produce an ionization effect.

[0080] Then adjust the high voltage amplitude of the high voltage discharge electrode and set / modulate the reactance value of the reactance element (or component) so that the potential difference between the high voltage discharge electrode and the low voltage electrode is greater than the corona initiation voltage.

[0081] By adjusting the high voltage amplitude applied to the high-voltage discharge electrode and setting / modulating the reactance value of the reactive element (or assembly), and simultaneously adjusting the creepage distance and / or clearance between the high-voltage discharge electrode and the low-voltage electrode, a dynamic potential difference is created between the high-voltage discharge electrode and the low-voltage electrode. This smooths out the imbalance fluctuations between positive and negative ions, ensuring that the amount of ions generated by ionization meets the industry standard requirements for the discharge performance of the ionizer. In this way, a dynamic potential difference is formed between the high-voltage discharge electrode and the low-voltage electrode, which is associated with the ionization (discharge) state; and ionization (discharge) based on this dynamic potential difference is also formed.

[0082] In this technical solution, the reactive element (or assembly) is a group of resistive and capacitive elements. Specifically, it can be composed of a single resistive element, a single capacitive element, or a group of resistors and capacitors connected in parallel or in a mixed configuration. Since the composition and specific connection method of the resistive and capacitive elements are existing technologies, they will not be described in detail here.

[0083] The specific working principle of the technical solution of this invention is as follows:

[0084] First, connect the low-voltage electrode, which is matched with the high-voltage discharge electrode, to one (or a group) of reactive components (or groups), and then connect it to the ground wire. In this way, the low-voltage electrode will have a dynamic voltage U. 低 This voltage consists of two parts:

[0085] First, the low-voltage electrode is in the electric field of the high-voltage discharge electrode, and the induced voltage U it receives is... 感 ;

[0086] Secondly, the high-voltage discharge electrode ionizes positive and negative ions. The space charge field generated by these ions acts on the low-voltage electrode, and some of these ions move to the low-voltage electrode. Ultimately, an ion voltage U is formed on the low-voltage electrode. ion .

[0087] That is: U 低 =U 感 +U ion .

[0088] Thus, the potential difference between the high-voltage discharge electrode and the low-voltage electrode is: U 电势差 =U 高 -U 低 =U 高 -U 感 -U ion This potential difference determines the strength of the corona discharge and the amount of ions produced.

[0089] And the ion voltage U ion It also includes the positive ion voltage U +ion and negative ion voltage U -ion , that is: U ion =U +ion +U -ion .

[0090] When the number of positive and negative ions changes, the ion voltage U ion This will change accordingly, thus affecting the potential difference U between the high-voltage discharge electrode and the low-voltage electrode. 电势差 Changes will occur, thereby allowing the intensity of corona discharge and the amount of positive and negative ions generated to be adjusted automatically, achieving self-regulation of the number of positive and negative ions and electrical balance.

[0091] For different types of fire extinguishers, the technical solution of the present invention adopts the following specific implementation methods:

[0092] 1. For AC power extinguishers:

[0093] like Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a set of high-voltage discharge electrodes 2 and low-voltage side electrodes are set on the AC extinguishing device. The side electrodes 3 of the rod-type AC extinguishing device are connected in series with resistors R or capacitors C or electrically connected with resistors and capacitors in parallel, and then grounded.

[0094] Resistors and capacitors can be adjustable to allow for initial performance testing of the power extinguisher.

[0095] An alternating voltage is applied to the high-voltage discharge electrode to induce corona discharge and produce an ionization effect.

[0096] Adjust the AC high voltage amplitude and set / modulate the reactance of the resistor and / or capacitive reactance element (or assembly) so that the potential difference between the high voltage discharge electrode and the low voltage electrode is greater than the corona initiation voltage. Adjust the AC high voltage amplitude and set / modulate the reactance of the resistor and / or capacitive reactance element (or assembly) so that the amount of ions generated by ionization meets the industry standard requirements for the static eliminator's performance. At the same time, adjust the creepage distance and / or clearance between the high voltage discharge electrode and the low voltage electrode, and adjust the AC high voltage amplitude and set / modulate the reactance of the resistor and / or capacitive reactance element (or assembly) so that the amount of ions generated by ionization meets the industry standard requirements for the static eliminator's performance.

[0097] After this operation, a U will be generated on the side electrode. 低 When the number of positive ions increases, U 低 The positive half-cycle amplitude is too large, U 电势差 The amplitude difference during the positive half-cycle will gradually decrease (see...). Figure 16-1 As shown in the diagram, when the positive discharge weakens, the amount of positive ions produced decreases, thus forming a positive ion regulation circuit; similarly, the reverse is also true.

[0098] When the number of negative ions increases, U 低 The amplitude of the negative half-cycle is relatively large, U 电势差 The amplitude difference during the negative half-cycle will gradually decrease (see...). Figure 16-2 As shown in the diagram, the negative discharge weakens, and the amount of negative ions generated decreases, thus forming a negative ion regulation circuit; similarly, the reverse is also true.

[0099] In this way, a dynamic potential difference is formed between the high-voltage discharge electrode and the low-voltage electrode, which is associated with the ionization (discharge) state; at the same time, ionization (discharge) based on the dynamic potential difference is also formed.

[0100] 2. For DC power extinguishers:

[0101] like Figure 10 , Figure 11 , Figure 12 , Figure 13As shown, a set of positive high-voltage discharge electrodes 5 and a matching positive low-voltage electrode 3a are provided on the DC extinguishing device, and a set of negative high-voltage discharge electrodes 6 and a matching negative low-voltage electrode 3b are also provided; a capacitive and / or impedance element (or assembly) R is... 正 Or C 正 One end of the reactance element (or component) (referred to as the first resistor-capacitor assembly in this technical solution) is electrically connected to the positive low-voltage electrode, and the reactance element (or assembly) R... 正 Or C 正 The other end is grounded, while another capacitive or / and impedance element (or component) R is connected. 负 Or C 负 One end of the reactance element (or component) (referred to as the second resistor-capacitor assembly in this technical solution) is electrically connected to the negative low-voltage electrode, and the reactance element (or assembly) R... 负 Or C 负 The other end is grounded.

[0102] An intermediate electrode 12 is disposed on the rod 1 between the positive high-voltage discharge electrode 5 and the negative high-voltage discharge electrode 6. The intermediate electrode is connected to an intermediate resistor-capacitor element R. 中 Or C 中 Grounding.

[0103] A positive DC voltage is applied to the positive high-voltage discharge electrode to induce positive corona discharge and produce an ionization effect. At the same time, a negative DC voltage is applied to the negative high-voltage discharge electrode to induce negative corona discharge and produce an ionization effect.

[0104] Adjust the amplitude of the positive DC high voltage and set / modulate the capacitance and / or impedance element (or component) R. 正 Or C 正 The reactance value is adjusted so that the potential difference between the positive high-voltage discharge electrode and the positive low-voltage electrode is greater than the positive DC corona initiation voltage. Simultaneously, the amplitude of the negative DC high voltage is adjusted, and the capacitance and / or impedance elements (or components) R are set / modulated. 负 Or C 负 The reactance value makes the potential difference between the negative high-voltage discharge electrode and the negative low-voltage electrode greater than the negative DC corona initiation voltage.

[0105] Adjust the amplitude of the positive DC high voltage and set / modulate the capacitance and / or impedance element (or component) R. 正 Or C 正 The reactance value is adjusted to ensure that the amount of positive ions generated by ionization meets the industry standard requirements for the discharge performance of the ionizer. The creepage distance and / or clearance between the positive DC high-voltage discharge electrode and the positive low-voltage electrode are adjusted in a coordinated manner, and the amplitude of the positive DC high voltage is adjusted. Capacitive and / or impedance elements (or components) R are set / modulated. 正 Or C 正 The reactance value ensures that the amount of positive ions generated by ionization meets the industry standard requirements for the static scavenging performance of the device; adjust the amplitude of the negative DC high voltage, and set / modulate the capacitance and / or impedance elements (or components) R.负 Or C 负 The reactance value is adjusted to ensure that the amount of negative ions generated by ionization meets the industry standard requirements for the static electricity elimination performance of the device. The creepage distance and / or clearance between the negative DC high-voltage discharge electrode and the negative low-voltage electrode are adjusted in a coordinated manner, and the amplitude of the negative DC high voltage is adjusted. Capacitive and / or impedance elements (or components) R are set / modulated. 负 Or C 负 The reactance value is adjusted to ensure that the amount of negative ions generated by ionization meets the industry standard requirements for the static electricity elimination performance of the device; the creepage distance and / or clearance between the positive and negative DC high-voltage discharge electrodes are adjusted in a coordinated manner, as well as the creepage distance and / or clearance between the positive and negative DC high-voltage discharge electrodes and the low-voltage electrodes located between the positive and negative high-voltage discharge electrodes, and the amplitude of the positive and negative DC high voltages is adjusted, and the capacitance and / or impedance elements (or components) R are set / modulated. 正 Or C 正 With R 负 Or C 负 The reactance value ensures that the amount of positive and negative ions generated by ionization meets the industry standard requirements for the electrostatic discharge performance of the electrostatic discharger.

[0106] The low-voltage electrode (also known as the intermediate electrode 12) located between the positive and negative high-voltage discharge electrodes is designed to better balance the positive and negative high-voltage electric fields and suppress fluctuations in the electrical balance between positive and negative ions. Its physical regulation mechanism during the discharge process is the same as described above and will not be repeated here.

[0107] Similarly, the resistance value of the resistor or the capacitance value mentioned above can be adjustable to allow for initial performance testing of the extinguishing device.

[0108] After the above coordinated operation, U will be generated on the positive low-voltage electrode. 正低 When the number of positive ions increases, |U 正低 |Grow bigger,|U 正电势差 |=|U +高 -U 正低 The positive discharge will gradually decrease, the positive discharge will weaken, and the amount of positive ions produced will decrease, thus forming a positive ion regulation circuit; similarly, the reverse is also true.

[0109] U is generated on the negative low-voltage electrode. 正低 When the number of negative ions increases, |U 负低 |Grow bigger,|U 负电势差 |=|U -高 -U 负低 The negative discharge will gradually decrease, the amount of negative ions produced will decrease, thus forming a negative ion regulation circuit; similarly, the reverse is also true.

[0110] The low-voltage electrode, located between the positive and negative high-voltage discharge electrodes, has a voltage U. 中低It is the voltage generated by the combined action of positive and negative high-voltage electric fields, positive and negative ion charge fields, and the movement of positive and negative ions to the middle electrode.

[0111] When the number of positive ions increases, U 中低 If it increases (in a positive direction), then the positive piezoelectric potential difference |U 正压电势差 |=|U +高 -U 中低 As the size of the positive discharge decreases, the amount of positive ions produced decreases, thus forming a positive ion regulation circuit; similarly, the opposite is also true.

[0112] When the number of negative ions increases, U 中低 If it increases (in a negative direction), then the negative voltage difference |U 负压电势差 |=|U -高 -U 中低 As the size of the negative ion decreases, the negative discharge weakens, and the amount of negative ion generated decreases, thus forming a negative ion regulation circuit; similarly, the opposite is also true.

[0113] In this way, a dynamic potential difference is formed between the high-voltage discharge electrode and the low-voltage electrode, which is associated with the ionization (discharge) state; at the same time, ionization (discharge) based on the dynamic potential difference is also formed.

[0114] 3. For rod-type extinguishing devices:

[0115] Figure 7 , 8 9 and Figure 11 , 12 The low-voltage electrode 3, positive high-voltage discharge electrode 5, or negative high-voltage discharge electrode 6 of the rod-shaped extinguishing device in section 13 do not necessarily need to be exposed to the external environment. That is, they can be sealed in an insulating shell. In this way, some of the ions ionized by the high-voltage discharge electrode will not be able to move to the low-voltage electrode, and this part of the effect on the low-voltage electrode will be lost. However, the positive and negative ions ionized by the high-voltage discharge electrode will still have an effect on the low-voltage electrode due to their own space charge field. For example, when the number of positive ions increases, the space positive charge field generated by the positive ions themselves will become stronger, and therefore the effect on the low-voltage electrode will also increase.

[0116] 4. For fan-type fire extinguishers:

[0117] like Figure 14 , Figure 15 As shown, after the metal mesh electrode 10 of the fan-type extinguishing device is electrically connected to the parallel resistor and capacitor, grounding is then set.

[0118] Since the metal mesh electrode in the fan-type extinguishing device acts as a low-voltage electrode, the aforementioned treatment mode for the low-voltage electrode can be adopted. A resistor-capacitor element or a group of resistor-capacitor elements connected in parallel or in a mixed manner can be connected in series between the metal mesh electrode and the grounding terminal to form the same dynamic potential difference between the high-voltage discharge electrode and the low-voltage electrode, which is associated with the ionization (discharge) state. At the same time, ionization (discharge) based on the dynamic potential difference is also formed.

[0119] in Figure 14 An embodiment of an AC fan-type fire extinguisher is given. Figure 15 An example of a DC fan-type power extinguisher is given.

[0120] In these two embodiments, the metal mesh electrode receives the positive and negative high-voltage electric fields of the high-voltage discharge electrode, the positive and negative ion charge fields, and the combined effect of the positive and negative ions moving to the metal mesh electrode, forming a composite voltage U. 中低 The physical regulation mechanism of its discharge process is the same as that described above, and will not be repeated here.

[0121] Since rod-type extinguishing devices, AC extinguishing devices, DC extinguishing devices, and fan-type extinguishing devices are all existing technologies, and the applicant has also applied for relevant patents for the above-mentioned types of extinguishing devices, the specific structure and working principle of rod-type extinguishing devices, AC extinguishing devices, DC extinguishing devices, and fan-type extinguishing devices will not be described in detail here.

[0122] Due to the technical solution of this invention, a set of resistor-capacitor components are connected in series between the low-voltage electrode and "ground" of various extinguishing devices. By setting the reactance value of the resistor-capacitor components, the creepage distance and / or electrical clearance between each high-voltage discharge electrode or between each high-voltage discharge electrode and the low-voltage electrode located between the high-voltage discharge electrodes are adjusted in a coordinated manner, and the high voltage amplitude is automatically adjusted. This achieves self-adjustment of the discharge intensity and dynamic electrical balance of the positive and negative ion generation of the extinguishing device, which can eliminate the need for on-site manual adjustment of ion balance and save on usage costs.

[0123] This invention can be widely used in the design and manufacturing of various active static eliminators.

Claims

1. A method for improving the ion balance stability of an ionizer, comprising providing at least one set of high-voltage discharge electrodes and a low-voltage electrode used in conjunction therewith on the ionizer; characterized in that: (1) a set of reactance components is provided; (2) one end of the reactance components is electrically connected to the low-voltage electrode, and the other end of the reactance components is grounded; (3) an electric voltage is applied to the high-voltage discharge electrodes to cause corona discharge and produce ionization effects; (4) the amplitude of the voltage applied to the high-voltage discharge electrodes is adjusted, and the reactance value of the reactance components is set or modulated, so that the potential difference between the high-voltage discharge electrodes and the low-voltage electrode is greater than the corona inception voltage; (5) the amplitude of the voltage applied to the high-voltage discharge electrodes is adjusted, and the reactance value of the reactance components is set or modulated, so that the amount of ions produced by ionization of the ionizer meets the industry standard requirements for the ionization performance of the ionizer; (6) the creepage distance or / and the electrical clearance between the high-voltage discharge electrodes and the low-voltage electrode is adjusted, the amplitude of the voltage applied to the high-voltage discharge electrodes is adjusted, and the reactance value of the reactance components is set or modulated, so that the amount of ions produced by ionization of the ionizer meets the industry standard requirements for the ionization performance of the ionizer; (7) a dynamic potential difference associated with the ionization or discharge state is formed between the high-voltage discharge electrodes and the low-voltage electrode; (8) the ionizer is in an ionization or discharge operating mode based on the dynamic potential difference; (9) by suppressing the unbalanced fluctuations between positive and negative ions produced by the ionizer, the ionizer realizes self-regulation of discharge strength and dynamic balance of the amount of positive and negative ions produced by the ionizer. The reactance components are resistance-capacitance components, which are used to generate an reactance value between the low-voltage electrode and the ground. An alternating current ionizer, the method for improving the ion balance stability of the ionizer realizes the ionization or discharge operating mode based on the dynamic potential difference in the following manner: (1) a set of resistance-capacitance components is provided; (2) one end of the resistance-capacitance components is electrically connected to the low-voltage electrode, and the other end of the resistance-capacitance components is grounded; (3) an alternating current voltage is applied to the high-voltage discharge electrodes to cause corona discharge and produce ionization effects; (4) the amplitude of the alternating current voltage is adjusted, and the reactance value of the resistance-capacitance components is set or modulated, so that the potential difference between the high-voltage discharge electrodes and the low-voltage electrode is greater than the corona inception voltage; (5) the amplitude of the alternating current voltage is adjusted, and the reactance value of the resistance-capacitance components is set or modulated, so that the amount of ions produced by ionization meets the industry standard requirements for the ionization performance of the ionizer; (6) the creepage distance or / and the electrical clearance between the high-voltage discharge electrodes and the low-voltage electrode is adjusted, the amplitude of the alternating current voltage is adjusted, and the reactance value of the resistance-capacitance components is set or modulated, so that the amount of ions produced by ionization meets the industry standard requirements for the ionization performance of the ionizer; (7) a dynamic potential difference associated with the ionization or discharge state is formed between the high-voltage discharge electrodes and the low-voltage electrode; 2. The method of improving the ion balance stability of a charge eliminator according to claim 1, characterized in that (8) the ionizer is in an ionization or discharge operating mode based on the dynamic potential difference; 3. A method for improving the ion balance stability of a neutralizer, characterized by applying (9) the ionizer dynamically and in real time suppresses the unbalanced fluctuations between positive and negative ions produced by the ionizer. A direct current ionizer, the method for improving the ion balance stability of the ionizer realizes the ionization or discharge operating mode based on the dynamic potential difference in the following manner: ​ ​ ​ ​ ​ ​ ​ ​ 4. A method for improving the ion balance stability of a power conditioner, characterized by ​ (1) Set a group of positive high-voltage discharge electrodes and a group of positive low-voltage electrodes matched therewith on the direct-current electric eliminator; set a group of negative high-voltage discharge electrodes and a group of negative low-voltage electrodes matched therewith; (2) Set at least two groups of resistance-capacitance components; (3) Electrically connect one end of the first resistance-capacitance component to the positive low-voltage electrode and ground the other end of the first resistance-capacitance component; electrically connect one end of the second resistance-capacitance component to the negative low-voltage electrode and ground the other end of the second resistance-capacitance component; (4) Apply a positive direct-current voltage to the positive high-voltage discharge electrode to cause positive corona discharge and produce ionization effect; apply a negative direct-current voltage to the negative high-voltage discharge electrode to cause negative corona discharge and produce ionization effect; (5) Adjust the amplitude of the positive direct-current voltage and set or modulate the reactance value of the first resistance-capacitance component so that the potential difference between the positive high-voltage discharge electrode and the positive low-voltage electrode is greater than the positive direct-current corona voltage; adjust the amplitude of the negative direct-current voltage and set the reactance value of the second resistance-capacitance component so that the potential difference between the negative high-voltage discharge electrode and the negative low-voltage electrode is greater than the negative direct-current corona voltage; (6) Adjust the amplitudes of the positive and negative direct-current voltages and set the reactance values of the first and second resistance-capacitance components so that the amount of positive and negative ions produced by ionization meets the requirements of the industry standard for the electric elimination performance of the electric eliminator; (7) Adjust the creepage distance or / and the electrical clearance between the positive high-voltage discharge electrode and the positive low-voltage electrode and, in coordination, adjust the amplitude of the positive direct-current voltage and set or modulate the reactance value of the first resistance-capacitance component so that the amount of positive ions produced by ionization meets the requirements of the industry standard for the electric elimination performance of the electric eliminator; (8) Adjust the creepage distance or / and the electrical clearance between the negative high-voltage discharge electrode and the negative low-voltage electrode and, in coordination, adjust the amplitude of the negative direct-current voltage and set or modulate the reactance value of the second resistance-capacitance component so that the amount of negative ions produced by ionization meets the requirements of the industry standard for the electric elimination performance of the electric eliminator; (9) Adjust the creepage distance or / and the electrical clearance between the positive high-voltage discharge electrode and the negative high-voltage discharge electrode and the creepage distance or / and the electrical clearance between the positive and negative high-voltage discharge electrodes and the positive and negative low-voltage electrodes located between the positive and negative high-voltage discharge electrodes, respectively, and, in coordination, adjust the amplitudes of the positive and negative direct-current voltages and set or modulate the reactance values of the first and second resistance-capacitance components so that the amounts of positive and negative ions produced by ionization meet the requirements of the industry standard for the electric elimination performance of the electric eliminator; (10) Form a dynamic potential difference between the high-voltage discharge electrode and the low-voltage electrode associated with the ionization or discharge state between the positive and negative high-voltage discharge electrodes and the corresponding positive and negative low-voltage electrodes; (11) Form an ionization or discharge working mode based on the dynamic potential difference.

5. An alternating-current electric eliminator adopting the method for improving the ion balance stability of the electric eliminator according to claim 2, comprising alternating-current discharge electrodes arranged in an insulating rod body and side electrodes arranged on the insulating rod body, characterized in that: a resistance-capacitance component is connected in series between the side electrodes and the ground end; the resistance-capacitance component is composed of a group of resistors and capacitors connected in parallel or mixedly. ​ 6. A direct current electric field eliminator using the method of claim 2 to improve the ion balance stability of the electric field eliminator, comprising a positive high voltage discharge electrode and a negative high voltage discharge electrode arranged in an insulating rod, and a positive low voltage electrode and a negative low voltage electrode arranged on the insulating rod; characterized in that: a resistance-capacitance assembly is connected in series between the positive low voltage electrode and / or the negative low voltage electrode and a ground terminal; the resistance-capacitance assembly is composed of a set of parallel or mixed resistance and capacitance. An intermediate electrode is arranged on the insulating rod between the positive high voltage discharge electrode and the negative high voltage discharge electrode. An intermediate resistance-capacitance assembly is connected in series between the intermediate electrode and the ground terminal.

7. The DC power eliminating device according to claim 6, characterized in that The intermediate resistance-capacitance assembly is composed of a set of parallel or mixed resistance and capacitance.

8. A fan type alternating current electric field eliminator or a fan type direct current electric field eliminator using the method of claim 1 to improve the ion balance stability of the electric field eliminator, comprising a metal mesh cover electrode, characterized in that: a resistance-capacitance assembly is connected in series between the metal mesh cover electrode and a ground terminal. The resistance-capacitance assembly is composed of a set of parallel or mixed resistance and capacitance. ​ ​ 9. The fan-type AC power eliminator or fan-type DC power eliminator according to claim 8, characterized in that ​

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