Electrostatic precipitator

Abstract

To provide a static elimination and dust removal system with superior stability as a device. [Solution] The system comprises a communication chamber 400 that communicates with a supply passage 201 connected to an air supply port 200 and an injection passage 300 connected to an air injection port, a rotor blade 51 rotatably mounted on a rotating shaft located within the communication chamber 400, a resistance unit 6 positioned axially forward of the rotating shaft 700 relative to the rotor blade 51, rotating together with the rotor blade 51 and receiving air flowing from the rotor blade 51 side to obtain resistance to rotation, a power generation unit 7 that generates electricity using the rotational force of the rotor blade 51, and an ion generation unit that generates ions using the power from the power generation unit 7. The rotor blade 51 has a plurality of rotor blades 51 that extend radially outward from the rotating shaft 700, the blade surfaces of the plurality of rotor blades 51 face toward the resistance unit 6, an inlet 401 communicating with the supply passage 201 is formed in the communication chamber 400, and the plurality of rotor blades 51 are arranged laterally radially with respect to the inlet 401.

Description

Technical Field

[0001] The present invention relates to an electrostatic dust removal device that performs electrostatic discharge and dust removal by injecting ionized air.

Background Art

[0002] As the above-described electrostatic dust removal device, for example, as disclosed in Patent Document 1, there is an air connection joint to which a hose extending from a gas supply device for supplying high-pressure gas is connected, an air input port for taking in high-pressure air from the air connection joint, an air output port for discharging high-pressure air, a drive chamber having these, a discharge port connected to the air output port via a pipe and discharging high-pressure air, a power generation unit that generates power using high-pressure air introduced through the air connection joint in the drive chamber, a high-voltage generator that generates a high voltage using the electricity generated by the power generation unit, and an ion generator that generates ions by the high voltage generated by the high-voltage generator and supplies them to the space in front of the discharge port.

[0003] The electrostatic dust removal device is configured such that ions supplied to the space in front of the discharge port by the ion generator can be blown by high-pressure air discharged from the discharge port and blown onto the charged location.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, the power generation unit of the above-described conventional electrostatic dust removal device is configured by a fan body that is housed in the drive chamber so as to be rotatable about a rotation axis and is configured to be rotatable about the rotation axis.

[0006] Furthermore, in static elimination devices, if the fan rotates excessively beyond the rotational speed necessary for the device to function, it can overload the generator in the power generation unit, leading to overheating or failure due to broken coils, or it can cause overcurrent to flow through the electrical system due to more power generation than necessary, resulting in failure. Therefore, there was room for improvement in terms of the stability of the device.

[0007] Therefore, in view of these circumstances, the present invention aims to provide an anti-static and dust removal device that is highly stable as a device. [Means for solving the problem]

[0008] The static elimination and dust removal device of the present invention is A supply path that connects to an air supply port that supplies air from the outside, The injection passage connected to the nozzle that injects air, A communication chamber that communicates with the supply passage and the injection passage, A rotating blade is rotatably mounted on a rotating shaft located within the aforementioned communication chamber and rotates by air supplied from the outside, A resistance unit is positioned in front of the rotor blade in the airflow direction of the air that touches and is ejected from the rotor blade, and rotates integrally with the rotor blade about the axis of rotation, and is configured to generate resistance to rotation by receiving the air ejected by the rotor blade. A power generation unit that generates electricity by receiving the rotational force of the rotor blade, The system includes an ion generating unit that generates ions by receiving power from the aforementioned power generation unit, The communication chamber is formed with an inlet that communicates with the supply passage and an outlet that communicates with the injection passage. The rotor blade has a plurality of rotor blades extending outward in the radial direction of the rotation axis, The plurality of rotor blades have a blade surface that is an inclined surface facing the resistance side, and has a blade surface that receives air for the rotation of the rotor blade. The plurality of rotor blades are positioned to be aligned laterally in the radial direction with respect to the inlet.

[0009] In the static elimination and dust removal device with the above configuration, the air supplied to the supply path flows into the communication chamber from the inlet and strikes the blade surface of the rotor blade. The rotor blade then rotates due to the force of the air acting on the blade surface.

[0010] Furthermore, since the blade surface of the rotor blade is inclined toward the resistance side, the air received by the blade surface is pushed toward the resistance side. When the resistance side receives the air pushed by the rotor blade, resistance (braking force) is generated against the rotation of the rotor blade, which prevents the rotational speed of the rotor blade from increasing excessively beyond the rotational speed required for ion generation.

[0011] In the static elimination and dust removal device of the present invention, The rotor blades and the resistance section may be arranged in multiple layers in the axial direction of the rotation shaft and be integrated into one unit.

[0012] Thus, if the rotor blade and the resistance unit are formed as a single unit, assembly is easier, and the resistance generated in the resistance unit is more easily transmitted to the rotor blade, making it easier to control the rotation speed of the rotor blade.

[0013] In the static elimination and dust removal device of the present invention, The rotor blade and the resistance section may each be formed in separate layers.

[0014] This approach allows for controlling the rotational speed of the rotor blades with a simple structure.

[0015] The static elimination and dust removal device of the present invention is The plurality of rotor blades are arranged with spacing between them in the circumferential direction about the rotation axis of the rotor blade, The resistive portion has a plurality of resistive plates extending outward in the radial direction, The position of each of the plurality of resistance plates may be set to a position that is offset in the circumferential direction from the position of each of the plurality of rotor blades.

[0016] By doing so, the resistance plate can easily receive the air flowing from the rotary blade side toward the resistance part side, and it becomes easier to suppress the rotational speed of the rotary blade.

[0017] In the static eliminator and dust collector of the present invention, The arrangement position of each of the plurality of resistance plates in the circumferential direction is It may be set in accordance with the intermediate position between the adjacent rotary blade plates in the circumferential direction.

[0018] By doing so, it becomes easy to secure a wide area of the resistance plate that receives the air flowing from the rotary blade side toward the resistance part side, and thereby, it becomes easier to suppress the rotational speed of the rotary blade.

[0019] The plurality of rotary blade plates and the plurality of resistance plates are inclined with respect to the axial direction of the rotary shaft, The inclination direction of the plurality of rotary blade plates and the inclination direction of the plurality of resistance plates are the same or substantially the same, The inclination angle of the plurality of rotary blade plates and the inclination angle of the plurality of resistance plates may be the same or substantially the same.

[0020] By doing so, the flow of air in the communication chamber becomes easy to be regulated, and also, resistance can be effectively generated by the resistance plate.

[0021] In the static eliminator and dust collector of the present invention, The outlet is formed in front of the resistance part in the axial direction of the rotary shaft, It may be like this.

[0022] According to the static eliminator and dust collector having the above configuration, since the air supplied into the communication chamber is discharged to the outside of the communication chamber from the outlet, the air in the communication chamber easily touches the resistance part, and thereby, it becomes easy to obtain the effect of braking the rotary blade. Therefore, the static eliminator and dust collector can easily suppress the rotational speed of the rotary blade plate by the resistance part.

Effect of the Invention

[0023] As described above, the static elimination and dust removal device of the present invention can achieve the excellent effect of being highly stable as a device. [Brief explanation of the drawing]

[0024] [Figure 1] Figure 1 is an external view of an electrostatic dust removal device according to one embodiment of the present invention. [Figure 2] Figure 2 is a longitudinal cross-sectional view of the static elimination and dust removal device according to the same embodiment. [Figure 3] Figure 3 is a view of the inside of the communication chamber of the static elimination and dust removal device according to the same embodiment, seen from the outlet side. [Figure 4] Figure 4 is an external view of the impeller (rotating blades and resistance section) of the static elimination and dust removal device according to the same embodiment. [Figure 5] Figure 5 is an explanatory diagram of the airflow in the communication chamber of the static elimination and dust removal device according to the same embodiment, and is an explanatory diagram of the airflow from the inlet toward the rotor blade and the resistance section. [Figure 6] Figure 6 is an explanatory diagram of the airflow in the communication chamber of the static elimination and dust removal device according to the same embodiment, illustrating the state in which air supplied into the communication chamber from the inlet is sent out to the resistance section by the rotating blades. [Figure 7] Figure 7 is an explanatory diagram of the airflow in the communication chamber of the static elimination and dust removal device according to the same embodiment, illustrating the state in which the air sent out by the flow-rotating blade strikes the resistance plate. [Figure 8] Figure 8 is a graph showing the relationship between the air pressure and power generation (voltage) of the static elimination and dust removal device according to the same embodiment. [Figure 9] Figure 9 is a graph showing the relationship between air pressure and power generation (voltage) of a static elimination and dust removal device according to another embodiment of the present invention. [Figure 10] Figure 10 is a graph showing the relationship between air pressure and power generation (voltage) of a static elimination and dust removal device according to yet another embodiment of the present invention. [Figure 11] Figure 11 is a graph showing the relationship between air pressure and power generation (voltage) of a static elimination and dust removal device according to yet another embodiment of the present invention. [Figure 12]Figure 12 is an explanatory diagram of the communication section of a static elimination and dust removal device according to yet another embodiment of the present invention. [Figure 13] Figure 13 is an explanatory diagram of the communication section of a static elimination and dust removal device according to yet another embodiment of the present invention. [Figure 14] Figure 14 is an explanatory diagram of the communication section of a static elimination and dust removal device according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0025] Hereinafter, an electrostatic dust removal device according to one embodiment of the present invention will be described with reference to the attached drawings.

[0026] As shown in Figure 1, the static elimination and dust removal device 1 according to this embodiment is a portable device (specifically, a gun type) that can be held and used by a person.

[0027] As shown in Figure 2, the static elimination and dust removal device 1 includes a supply unit 2 configured to allow air generated by an air generator (e.g., an air compressor) to circulate inside, an injection unit 3 configured to inject the air supplied to the supply unit 2 to the outside, a communication unit 4 connected to the supply unit 2 and the injection unit 3 and configured to allow air from the supply unit 2 to the injection unit 3 to circulate inside, a rotor blade 5 fixed to a rotating shaft 700 (the rotating shaft 700 of the generator 70 described later) which is rotatably positioned inside the communication unit 4, a resistance unit 6 positioned in front of the rotor blade 5 in the axial direction of the rotating shaft 700 (the airflow direction of the air that touches the rotor blade 5 and is sent out), which rotates integrally with the rotor blade 5 around the rotating shaft 700 and is configured to receive air flowing from the rotor blade 5 side to obtain resistance to rotation, a power generation unit 7 which generates electricity by receiving the rotational force of the rotor blade 5, and an ion generation unit 8 which generates ions by receiving the power from the power generation unit 7.

[0028] The supply unit 2 includes a supply attachment / detachment unit 20 that is configured to allow the attachment / detachment of an air generator (e.g., a compressor) and to allow the air generated by the air generator to circulate inside; a supply opening / closing unit 21 that can switch between a state in which the air supplied to the supply attachment / detachment unit 20 can pass through the inside and a state in which the air supplied to the supply attachment / detachment unit 20 cannot pass through the inside; and a supply connection unit 22 that connects the supply opening / closing unit 21 to the inside of the communication unit 4 (communication chamber 400, which will be described later).

[0029] The supply attachment / detachment section 20 has a supply port 200 that is open to the outside and a supply passage 201 that communicates with the supply port 200.

[0030] The supply switching unit 21 includes an switching passage forming 210 in which a switching passage 2100 communicating with the supply passage 201 is formed, and a switching structure 211 that can switch between a closed state in which the airflow in the switching passage 2100 is restricted and an open state in which the restriction on the airflow in the switching passage 2100 is released.

[0031] The opening / closing structure 211 includes an opening / closing movable part 2110 that can reciprocate within the opening / closing passage 2100 in the same direction as the axis of the opening / closing passage 2100, an inner wall portion 2111 that is continuous around the entire inner circumference of the opening / closing passage 2100 and protrudes radially inward from the inner circumference of the opening / closing passage 2100, and an annular sealing member 2112 attached to the opening / closing movable part 2110, which, in conjunction with the reciprocating motion of the opening / closing movable part 2110, comes into contact with the inner wall portion 2111 over its entire circumference. The device includes a sealing member 2112 that switches between a state in close contact around the entire circumference and a state separated from the inner wall portion 2111, a closing biasing member 2113 that biases the opening / closing movable portion 2110 in one direction (the direction in which the sealing member 2112 is in close contact with the inner wall portion 2111) within the opening / closing passage 2100, and an opening operation portion 2114 that pushes the opening / closing movable portion 2110 from the outside in the direction in which the sealing member 2112 is separated from the inner wall portion 2111.

[0032] The supply connection section 22 has a connection passage 220 formed inside that communicates with the opening / closing passage 2100 and the communication section 4 (communication chamber 400, which will be described later).

[0033] The injection unit 3 includes an injection connection unit 30 in which an injection passage 300 is formed, through which air sent from the communication unit 4 flows, and a nozzle 31 which communicates with the injection passage 300 and has an injection port 310 formed for injecting air from the injection passage 300 to the outside.

[0034] Inside the communication section 4, there is a communication chamber 400, an inlet 401 that opens on the inner surface of the communication chamber 400 and communicates with the connecting passage 220, and an outlet 402 that opens on the inner surface of the communication chamber 400 and communicates with the injection passage 300.

[0035] The communication chamber 400 is a cylindrical space. The inlet 401 is formed on the inner circumferential surface of the inner surface of the communication chamber 400. The outlet 402 is formed on the inner upper surface of the inner surface of the communication chamber 400.

[0036] The inlet 401 is formed to allow air flowing through the connecting passage 220 to be directed toward the rotor blade 5. Furthermore, in this embodiment, the inlet 401 is formed at a position aligned radially with respect to the rotor blade 5 and the resistance section 6. Therefore, the inlet 401 is formed to allow air to be directed toward the rotor blade 5 and the resistance section 6.

[0037] Furthermore, in this embodiment, the inlet 401 is located at a position where the opening center corresponds to the boundary between the rotor blade 5 and the resistance section 6. Therefore, the proportion of the opening region adjacent to the rotor blade 5 and the opening region adjacent to the resistance section 6 are the same or approximately the same.

[0038] The outlet 402 is formed in a tapered shape that narrows towards the end. As a result, the inner diameter of the outlet 402 gradually decreases as it moves from the communication chamber 400 towards the injection section 3.

[0039] The rotor blade 5 has a rotation fixing portion 50 fixed to a rotation shaft 700 which is rotatably arranged extending from the inner lower surface of the communication chamber 400, and a plurality of rotor blades 51 extending outward in the radial direction of the rotation shaft 700 from the rotation fixing portion 50.

[0040] As shown in Figure 3, the rotor blade 5 has four rotor blades 51. The four rotor blades 51 are arranged at equal intervals in the circumferential direction centered on the axis of the rotation shaft 700. Furthermore, the four rotor blades 51 are positioned to be parallel to the inlet 401 in a direction perpendicular to the axial direction of the rotation shaft 700. Thus, the rotor blade 5 of this embodiment is configured to have only one blade layer in which multiple rotor blades 51 are arranged in the circumferential direction.

[0041] The four rotor blades 51 are inclined such that the blade surfaces that receive air flowing into the communication chamber 400 from the inlet 401 face forward (towards the resistance section 6) in the axial direction of the rotation axis 700. In this embodiment, the rotor blades 51 are inclined at 5° with respect to the axial direction of the rotation axis 700.

[0042] The resistance section 6 in this embodiment is propeller-shaped, similar to the rotor blade 5. Furthermore, the resistance section 6 and the rotor blade 5 are integrally formed, constituting a so-called impeller (see Figure 4).

[0043] The resistance section 6 comprises a resistance fixing section 60 which is integrated with the rotation fixing section 50 and arranged coaxially with the rotation shaft 700, and a plurality of resistance plates 61 which extend outward from the resistance fixing section in the radial direction of the rotation shaft 700.

[0044] The resistive section 6 has four resistive plates 61. The four resistive plates 61 are arranged at equal intervals in the circumferential direction centered on the axis of the rotating shaft 700. Furthermore, the four resistive plates 61 are positioned to be parallel to a part of the inlet 401 in a direction perpendicular to the axial direction of the rotating shaft 700. Thus, the resistive section 6 of this embodiment is configured to have only one resistive layer in which multiple resistive plates 61 are arranged in the circumferential direction.

[0045] Furthermore, the four resistance plates 61 and the four rotor blades 51 are positioned so as not to overlap when viewed from the axial direction of the rotation axis 700. That is, the position of each of the four resistance plates 61 is set to be offset in the circumferential direction from the position of each of the four rotor blades 51. In the static elimination and dust removal device 1 of this embodiment, the position (phase) of the four resistance plates 61 and the position of the four rotor blades 51 are offset by 45° in the circumferential direction of the rotation axis 700.

[0046] The four resistance plates 61 have inclined resistance surfaces that face the space between adjacent rotor blades 51 in the circumferential direction. The resistance surfaces are the surfaces that receive the air pushed out by the rotor blades 51. In this embodiment, the resistance plates 61 are inclined at 5° with respect to the axial direction of the rotation axis 700.

[0047] As shown in Figure 5, when air A1 flows into the communication chamber 400 from the inlet 401, the blade surface of the rotor blade 51 and the resistance plate 61 receive this air A1. Then, a force F1 acting in one direction circumferentially around the rotation axis 700 and a force F2 acting rearward in the axial direction of the rotation axis 700 are generated on the rotor blade 51 and the resistance plate 61, causing the resistance part 6 to rotate around the rotation axis 700 together with the rotor blade 51.

[0048] Furthermore, as shown in Figure 6, the air A1 that strikes the blade surface of the rotor blade 51 is pushed towards the resistance section 6 by the blade surface. As shown in Figure 7, when the resistance surface of the resistance plate 61 receives the air A2 pushed out by the blade surface of the rotor blade 51, a force F3 acting in one direction in the circumferential direction of the rotation axis 700 and a force F4 acting forward in the axial direction of the rotation axis 700 are generated on the resistance plate 61. In particular, the difference between force F1 and force F3 becomes a force (resistance) that hinders the rotation of the rotor blade 5 and the resistance section 6.

[0049] As shown in Figure 2, the power generation unit 7 is equipped with a generator 70, and as described above, the rotating shaft 700 of the generator 70 is inserted into the communication chamber 400 from the inner lower surface of the communication chamber 400.

[0050] The ion generating unit 8 includes a discharge needle 80 positioned within the injection passage 300 and a current-carrying unit (not shown) that is electrically connected to the discharge needle 80 and the power generation unit 7.

[0051] The discharge needle 80 is supplied with electricity generated by the power generation unit 7 through the current-carrying unit. When power is supplied, the discharge needle 80 discharges electricity within the nozzle 31, thereby ionizing the air inside the nozzle 31.

[0052] The configuration of the static elimination and dust removal device 1 according to this embodiment is as described above. Next, the operation of the static elimination and dust removal device 1 will be explained.

[0053] The air supplied from the supply passage 201 passes through the opening / closing passage 2100 and the connecting passage 220 in sequence, and flows into the communication chamber 400 from the inlet 401. The air that flows into the communication chamber 400 from the inlet 401 then strikes the rotor blades 51 and the resistance plates 61 at a lateral angle.

[0054] As described above, when air flows into the communication chamber 400 from the inlet 401, the blade surfaces of the rotor blade 51 and the resistance plate 61 receive this air. Then, a force is generated on the rotor blade 51 and the resistance plate 61 in one direction (quasi-rotational direction) in the circumferential direction of the rotation axis 700 and a force acting backward in the axial direction of the rotation axis 700 (in the direction opposite to the direction in which the rotation axis 700 extends from the inner lower surface of the communication chamber 400), causing the rotor blade 51 and the resistance plate 6 to rotate together around the rotation axis 700.

[0055] Furthermore, the air that touches the blade surface of the rotor blade 51 is pushed towards the resistance section 6 by the blade surface of the rotor blade 51. When the resistance surface of the resistance plate 61 receives the air pushed out by the blade surface of the rotor blade 51, a force is generated on the resistance plate 61 acting in the opposite direction (counter-rotation direction) in the circumferential direction of the rotation axis 700 and a forward direction in the axial direction of the rotation axis 700 (in the direction in which the rotation axis 700 extends from the inner lower surface of the communication chamber 400), which becomes a force (resistance) that suppresses the rotation of the rotor blade 51 and the resistance section 6.

[0056] In this way, the rotational speed of the rotor blade 51 is suppressed by the resistance unit 6, preventing it from increasing excessively beyond the rotational speed necessary for ion generation.

[0057] As described above, in the static elimination and dust removal device 1, when the air supplied to the supply passage 201 flows into the communication chamber 400 from the inlet 401 and hits the blade surface of the rotor blade 51, the rotor blade 5 rotates due to the force of the air acting on the blade surface of the rotor blade 51.

[0058] Furthermore, since the blade surface of the rotor blade 51 is inclined toward the resistance unit 6, the air received by the blade surface is sent toward the resistance unit 6. When the resistance unit 6 receives the air sent toward the resistance unit 6 by the rotor blade 51, resistance (braking force) to the rotation of the rotor blade 5 is generated, which suppresses the rotational speed of the rotor blade 5, thereby suppressing overheating and malfunctions caused by load on the mechanism, as well as malfunctions caused by overcurrent flowing into the electrical system due to excessive power generation.

[0059] Therefore, the static elimination and dust removal device 1 can suppress the rotational speed of the rotor blades 5 from increasing excessively beyond the rotational speed required for ion generation, thereby achieving the excellent effect of being highly stable as a device.

[0060] Furthermore, comparing the power generation L1 of a conventional static elimination and dust removal device that does not have a configuration corresponding to the resistor 6 with the power generation L2 of the static elimination and dust removal device 1 of this embodiment, it can be seen that the power generation L2 of the static elimination and dust removal device 1 of this embodiment is lower than the power generation L1 of the conventional static elimination and dust removal device (see Figure 8), indicating that the rotation speed of the rotor blade 5 is suppressed in the static elimination and dust removal device 1 of this embodiment.

[0061] Furthermore, the static elimination and dust removal device 1 is capable of generating power at or above the minimum power generation amount T1 (the minimum amount of power generation required to operate the ion generation unit 8), and even if the pressure of the supplied air increases, the amount of power generated remains below the maximum power generation amount T2 (the maximum amount of power generated within the range in which it can operate without malfunction). On the other hand, in conventional static elimination and dust removal devices, if the pressure of the supplied air increases, the amount of power generated exceeds the maximum power generation amount T2.

[0062] Furthermore, as can be seen from the comparison between θ10~θ12 and θ20~θ22 in Figure 8, the static elimination and dust removal device 1 exhibits a smaller degree of change in power generation in response to changes in the pressure of the supplied air compared to conventional static elimination and dust removal devices, making it easier to stabilize the power generation (i.e., the rotation amount of the rotor blade 5).

[0063] Furthermore, it can be seen that the static elimination and dust removal device 1 of this embodiment is more effective at suppressing the rotation speed of the rotor blade 5 compared to conventional static elimination and dust removal devices as the pressure of the supplied air increases.

[0064] Furthermore, since the static elimination and dust removal device 1 has the rotor blades 5 and the resistance section 6 arranged in multiple layers in the axial direction of the rotation shaft 700 and formed integrally, it is easy to assemble, and the resistance generated in the resistance section 6 is easily transmitted to the rotor blades 5, making it easier to suppress the rotation speed of the rotor blades 5.

[0065] Furthermore, since the rotor blade 5 has only one layer of rotor blades 51 arranged in the circumferential direction, and the resistance section 6 has only one resistance layer of resistance plates 61 arranged in the circumferential direction, the rotational speed of the rotor blade 5 can be suppressed with a simple structure.

[0066] Furthermore, since the position of each of the multiple resistance plates 61 is set to be offset in the circumferential direction from the position of each of the multiple rotor blades 51, the resistance plates 61 are more likely to receive air flowing from the rotor blade 51 side toward the resistance section 6 side, making it easier to suppress the rotation speed of the rotor blade 5.

[0067] Furthermore, in the static elimination and dust removal device 1 of this embodiment, the position of each of the multiple resistance plates 61 in the circumferential direction is set to be at an intermediate position between adjacent rotor blades 51 in the circumferential direction. This makes it easier to secure a large area for the resistance plates 61 that receive air flowing from the rotor blade 5 side to the resistance section 6 side, thereby making it easier to suppress the rotation speed of the rotor blade 5.

[0068] Furthermore, since the inclination direction of the multiple rotor blades 51 and the inclination direction of the multiple resistance plates 61 are the same or substantially the same, and the inclination angle of the multiple rotor blades 51 and the inclination angle of the multiple resistance plates 61 are the same or substantially the same, the airflow within the communication chamber 400 is more easily regulated, and resistance can be effectively generated by the resistance plates 61 of the resistance section 6.

[0069] Furthermore, the outlet 402 of the communication chamber 400 is formed in front of the resistance section 6 in the axial direction of the rotating shaft 700, and the air supplied into the communication chamber 400 is discharged outside the communication chamber 400 from the outlet 402. As a result, the air inside the communication chamber 400 is more likely to come into contact with the resistance plate 61, thereby making it easier to obtain the effect of braking the rotor blade 5. Consequently, the static elimination and dust removal device 1 makes it easier to suppress the rotation speed of the rotor blade 5 with the resistance section 6.

[0070] It should be noted that the static elimination and dust removal device according to the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0071] In the static elimination and dust removal device 1 of the above embodiment, the rotor blades 51 of the rotor blade 5 and the resistance plates 61 of the resistance unit 6 were also 4. However, for example, the rotor blades 51 of the rotor blade 5 do not have to be 4, and the resistance plates 61 of the resistance unit 6 do not have to be 4. Also, the number of rotor blades 51 of the rotor blade 5 and the number of resistance plates 61 of the resistance unit 6 do not have to be the same.

[0072] In the static elimination and dust removal device 1 of the above embodiment, the inclination of the rotor blade 51 was 5° and the inclination of the resistor plate 61 was also 5°, but the inclination of the rotor blade 51 does not have to be 5°, and the inclination of the resistor plate 61 does not have to be 5°.

[0073] For example, even when the rotor blade 51 is tilted at 10° and the resistance plate 61 is tilted at 10°, the power generation L3 is lower than the power generation L1 of a conventional static elimination and dust removal device (see Figure 9), which indicates that the rotation speed of the rotor blade 5 is being suppressed.

[0074] Even in this case, the static elimination and dust removal device 1 can generate power equal to or greater than the minimum power generation T1 (the minimum power generation required to operate the ion generation unit 8), and even when the pressure of the supplied air increases, the power generation can be kept below the maximum power generation T2 (the maximum power generation within the range in which it can operate without malfunction). Furthermore, as can be seen from the comparison between θ10~θ13 and θ30~θ33 in Figure 9, the degree of change in power generation in response to changes in the pressure of the supplied air is smaller than in conventional static elimination and dust removal devices, indicating that the stability of power generation (i.e., the rotation amount of the rotor blade 5) has been improved.

[0075] Furthermore, even when the rotor blade 51 is tilted at 15° and the resistance plate 61 is tilted at 15°, the power generation L4 is lower than the power generation L1 of a conventional static elimination and dust removal device (see Figure 10). Moreover, even when the rotor blade 51 is tilted at 30° and the resistance plate 61 is tilted at 30°, the power generation L5 is lower than the power generation L1 of a conventional static elimination and dust removal device (see Figure 11). Therefore, in all cases, it can be seen that the rotation speed of the rotor blade 5 is suppressed.

[0076] Furthermore, even when the rotor blade 51 is tilted at 15° and the resistance plate 61 is tilted at 15°, the static elimination and dust removal device 1 can generate power equal to or greater than the minimum power generation T1 (the minimum power generation required to operate the ion generator 8), and even when the pressure of the supplied air increases, the power generation can be kept below the maximum power generation T2 (the maximum power generation within the range in which it can operate without malfunction). In addition, as can be seen from the comparison between θ10~θ13 and θ40~θ43 in Figure 10, the degree of change in power generation in response to changes in the pressure of the supplied air is smaller than in conventional static elimination and dust removal devices, indicating that the stability of power generation (i.e., the amount of rotation of the rotor blade 5) has been improved.

[0077] Furthermore, even when the rotor blade 51 is tilted at 30° and the resistance plate 61 is tilted at 30°, the static elimination and dust removal device 1 can generate power equal to or greater than the minimum power generation T1 (the minimum power generation required to operate the ion generator 8), and even when the pressure of the supplied air increases, the power generation can be kept below the maximum power generation T2 (the maximum power generation within the range in which it can operate without malfunction). Also, as can be seen from the comparison between θ10~θ13 and θ50~θ53 in Figure 11, the degree of change in power generation in response to changes in the pressure of the supplied air is smaller than in conventional static elimination and dust removal devices, indicating that the stability of power generation (i.e., the amount of rotation of the rotor blade 5) has been improved.

[0078] In the above embodiment, the inclination angle of the rotor blade 51 and the inclination angle of the resistance plate 61 were set to be the same, but the inclination angle of the rotor blade 51 and the inclination angle of the resistance plate 61 may be different.

[0079] In the above embodiment, the rotor blade 5 was configured to have only one blade layer in which multiple rotor blades 51 are arranged in the circumferential direction. However, for example, it may be configured to have multiple blade layers in which multiple rotor blades 51 are arranged in the circumferential direction.

[0080] In the above embodiment, the resistive section 6 was configured to have only one resistive layer in which multiple resistive plates 61 are arranged in the circumferential direction. However, for example, it may be configured to have multiple resistive layers in which multiple resistive plates 61 are arranged in the circumferential direction.

[0081] In the static elimination and dust removal device 1 of the above embodiment, the rotor blade 5 and the resistance unit 6 are described as being integrally formed, but the rotor blade 5 and the resistance unit 6 may be separate components as long as they can rotate together as a single unit.

[0082] Although the static elimination and dust removal device of the above embodiment was handheld, it may also be configured to be attached to, for example, a robot or the like.

[0083] In the above embodiment, the inlet 401 has its opening center located at a position corresponding to the boundary between the rotor blade 5 and the resistance section 6, and the proportion of the opening region adjacent to the rotor blade 5 and the opening region adjacent to the resistance section 6 were the same or approximately the same. However, for example, the opening center may be located at a position shifted towards the rotor blade 5 side from the boundary between the rotor blade 5 and the resistance section 6, and the proportion of the opening region adjacent to the rotor blade 5 may be larger than the proportion of the opening region adjacent to the resistance section 6.

[0084] Furthermore, the inlet 401 is located such that its opening center is shifted towards the resistance section 6 side of the boundary between the rotor blade 5 and the resistance section 6, and the proportion of the opening region adjacent to the resistance section 6 is greater than the proportion of the opening region adjacent to the rotor blade 5. However, in this case, at least a portion of the inlet 401 must be adjacent to the rotor blade 5 in the radial direction.

[0085] In the static elimination and dust removal device 1 of the above embodiment, the inlet 401 was formed laterally along the radial direction perpendicular to the axial direction. However, as shown in Figure 12, for example, it may be formed along a direction inclined with respect to the radial direction, as long as it can supply air to the rotor blade 5.

[0086] In the above embodiment, the communication chamber 400 had an inlet 401 for sending air flowing through the connecting passage 220 into the communication chamber 400. However, for example, another inlet may be formed to send air into the communication chamber 400 from a location other than the connecting passage 220.

[0087] In this case, for example, as shown in Figure 13, a separate inlet 403 may be formed that penetrates the outer and inner surfaces of the communication chamber 400 along the radial direction, or as shown in Figure 14, a separate inlet 403 may be formed that penetrates the corner of the communication chamber 400 along a direction intersecting the radial direction. However, in both the static elimination and dust removal device 1 shown in Figure 13 and the static elimination and dust removal device 1 shown in Figure 14, it is necessary to connect an air supply path separate from the connecting path 220 to the separate inlet 403 from the outside.

[0088] In both the static elimination and dust removal device 1 in Figure 13 and the static elimination and dust removal device 1 in Figure 14, the number of separate inlets 403 may be one or multiple. [Explanation of Symbols]

[0089] 1…Static elimination and dust removal device, 2…Supply unit, 3…Injection unit, 4…Communication unit, 5…Rotating blade, 6…Resistance unit, 7…Power generation unit, 8…Ion generation unit, 20…Supply attachment / detachment unit, 21…Supply switching unit, 22…Supply connection unit, 30…Injection connection unit, 31…Nozzle, 50…Rotation fixing unit, 51…Rotating blade plate, 60…Resistance fixing unit, 61…Resistance plate, 70…Generator, 80…Discharge needle, 200…Supply port, 201…Supply path, 210…Switching path formation, 211…Switching structure, 220…Connection path 300...Injection path, 310...Injection port, 400...Communication chamber, 401...Inlet, 402...Outlet, 403...Another inlet, 700...Rotating shaft, 2100...Opening / closing path, 2110...Opening / closing movable part, 2111...Inner wall part, 2112...Sealing member, 2113...Closing biasing member, 2114...Opening operation part, A1...Air, A2...Air, F1...Force, F2...Force, F3...Force, F4...Force, L1...Power generation amount, L2...Power generation amount, L3...Power generation amount, L4...Power generation amount, L5...Power generation amount

Claims

1. A supply path that connects to an air supply port that supplies air from the outside, The injection passage connected to the nozzle that injects air, A communication chamber that communicates with the supply passage and the injection passage, A rotating blade is rotatably mounted on a rotating shaft located within the aforementioned communication chamber and rotates by air supplied from the outside, A resistance unit is positioned in front of the rotor blade in the airflow direction of the air that touches and is ejected from the rotor blade, and rotates integrally with the rotor blade about the axis of rotation, and is configured to generate resistance to rotation by receiving the air ejected by the rotor blade. A power generation unit that generates electricity by receiving the rotational force of the rotor blade, The system includes an ion generating unit that generates ions by receiving power from the aforementioned power generation unit, The communication chamber is formed with an inlet that communicates with the supply passage and an outlet that communicates with the injection passage. The rotor blade has a plurality of rotor blades extending outward in the radial direction of the rotation axis, The plurality of rotor blades have a blade surface that is an inclined surface facing the resistance side, and has a blade surface that receives air for the rotation of the rotor blade. The plurality of rotor blades are arranged in a position where they are aligned laterally in the radial direction with respect to the inlet. Static elimination dust removal device.

2. The rotor blade and the resistance section are arranged in multiple layers and are integrated along the axial direction of the rotation shaft. The static elimination and dust removal device according to claim 1.

3. The rotor blade and the resistance section are each formed in layers. The static elimination and dust removal device according to claim 2.

4. The plurality of rotor blades are arranged with spacing between them in the circumferential direction about the rotation axis of the rotor blade, The resistive portion has a plurality of resistive plates extending outward in the radial direction, The position of each of the plurality of resistance plates is set to be offset in the circumferential direction from the position of each of the plurality of rotor blades. The static elimination and dust removal device according to any one of claims 1 to 3.

5. The respective positions of the plurality of resistance plates in the circumferential direction are: It is set to align with the intermediate position between adjacent rotor blades in the circumferential direction. The static elimination and dust removal device according to claim 4.

6. The plurality of rotor blades and the plurality of resistance plates are inclined with respect to the axial direction of the rotation axis, The inclination direction of the plurality of rotor blades and the inclination direction of the plurality of resistance plates are the same or substantially the same, The inclination angles of the plurality of rotor blades and the inclination angles of the plurality of resistance plates are the same or substantially the same. The static elimination and dust removal device according to claim 4.

7. The outlet is formed in front of the resistance portion in the axial direction of the rotation shaft. The static elimination and dust removal device according to claim 1.

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