JPH07854A - Ionizing wire take-in apparatus of electrostatic precipitator - Google Patents

Abstract

PURPOSE:To give strong back tension to an ionizing wire between a coiled body and a take-up body by allowing a coiled body to rotate at the time of take-up of an ionizing wire by a driving means of the take-up body and a rotation controlling means to regulate the rotation of the coiled body just before the end of the take-up by the driving means. CONSTITUTION:A control unit M45 is composed of a microcomputer and other electric parts and drives and rotates a gear mode motor M3 at prescribed timing. Corresponding to the operation, a solenoid M44 is excited. A rotation controlling means M4 is composed of a flange part M12, a latchet blade M41, a latch lever M42, the solenoid M44, and a controlling unit M45 and rotation of a coiled body M1 is allowed by driving means M3 at the time of take-up of an ionizing wire L. Before the end of the take-up operation by the driving means M3, the rotation of the coiled body M 1 is regulated, Consequently, strong back tension is applied to the drawn out ionizing wire L between the coiled body M1 and the take-up body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ionization wire winding device for an electrostatic precipitator.

[0002]

2. Description of the Related Art Generally, an electrostatic precipitator of this type is provided with an ionization section arranged in a path of air to be cleaned and a dust collection section arranged downstream of the ionization section. The ionization unit charges the dust contained in the air to be cleaned to one polarity (for example, positive polarity) in advance and collects the dust charged by the dust collecting unit on the downstream side. .

As the ionization part, a large number of opposing electrode plates are formed in a conductive casing of an electrostatic precipitator, and an ionizing wire to which a high voltage is applied is stretched between the opposing electrode plates. (See, for example, Japanese Patent Laid-Open No. 3-181345). The ionization wire has a relatively short service life,
Needs to be replaced frequently. Therefore, conventionally, an ionization device including a wound body around which an unused ionization wire is wound, a winding body around which a used ionization wire is wound up, and a drive means for rotating the winding body at a predetermined timing. A wire winding device is used.

Then, by rotating the winding member by the driving means, the used portion is wound while the tension is applied to the ionizing wire, and the unused portion is pulled out to the air path. Was doing.

[0005]

Since the ionizing wire is made of a material having a considerably high rigidity, slack will occur unless a large tension is applied between the winding body and the winding body. There was a problem that it ended up. In particular, there is a problem that the back tension does not sufficiently act on the ionization line after the winding operation is completed, and the ionization line is likely to loosen.

Further, a guide pulley for guiding the ionization line is provided in the extraction path of the ionization line, the guide pulley is configured to be displaceable, and an elastic body is urged in a direction to apply tension to the ionization line. It is also known. However, if the guide pulley is displaceable, the structure becomes complicated, which is not preferable. Further, due to the expansion and contraction of the elastic body, the tension acting on the ionization line changes, resulting in a problem that the winding operation cannot be performed smoothly.

The present invention has been made in view of the problems, and an object of the present invention is to provide an ionization wire winding device for an electrostatic precipitator which can reliably apply back tension to the ionization wire.

[0008]

In order to solve the above problems, in the ionization wire winding device for an electrostatic precipitator according to claim 1 of the present invention, an ionization wire is provided in a path of air to be cleaned. In an ionization wire winding device of an electrostatic precipitator that charges dust by using a wound body that is wound with an unused ionization wire and is rotatable in a direction to draw out the ionization wire, and use that is drawn from the winding body. A winding body for winding the already-ionized wire, a drive means for rotationally driving the winding body in the winding direction of the ionization wire, and a rotation and driving of the winding body when the ionization wire is wound by the driving means. Rotation control means for restricting the rotation of the winding body prior to the completion of the winding drive of the means is provided.

Further, in the ionization wire winding device for an electrostatic precipitator according to a second aspect of the present invention, in addition to the above structure, the rotation control means is detachable from the ratchet wheel provided on the winding body side and the ratchet wheel. While engaging with,
It has a latch lever that restricts rotation of the winding body in the drawing direction of the ionization wire with the ratchet wheel, and an engagement / disengagement drive unit that engages / disengages the latch lever with respect to the ratchet wheel. .

Further, the ionization wire winding device for an electrostatic precipitator according to claim 3 of the present invention is provided at a winding portion having a circular cross section around which an unused ionization wire is wound, and at both ends of the winding portion. It has a flange part integrally and is provided with a winding body that is rotatable in the direction of drawing out the ionization wire, and a winding body that winds up the used ionization wire drawn out from the winding body, and should be cleaned. In an ionization wire winding device for an electrostatic precipitator that charges an dust by extending an ionization wire in the path of air, the ionization wire is wound around the ionization wire wound around the winding section and is wound. The O-ring that regulates the loosening of the wire and forms a nip for the ionization wire to be drawn into the air path between the flange and one of the flange portions, and the ionization wire against the clamping pressure of the nip. With a drive force that can be pulled out, The wound assembly is characterized in that it comprises a driving means for rotating the ionization line winding direction.

[0011]

According to the ionization wire winding device for the electrostatic precipitator according to the first aspect, when the winding operation by the driving means is started, the rotation control means permits the rotation of the winding body in response thereto. The wound body is rotated in the direction in which the ionization wire is drawn out, and the unused ionization wire is stretched in the air path.
Since the rotation control means regulates the rotation of the winding body before the driving of the driving means is terminated, the rotation of the winding body and the winding body is regulated in the ionized wire extracted into the air path. A strong back tension is applied between them.

Further, according to the ionization wire winding device of the electrostatic precipitator of claim 2, in addition to the action of claim 1, after the winding is completed, the ionization wire is wound in a rotation direction opposite to the drawing direction of the ionization wire. By rotating the body, additional back tension can be applied to the ionizing radiation.
Further, according to the ionization wire winding device for the electrostatic precipitator according to claim 3, when the winding operation by the driving means is started, the ionization wire is provided between one of the flange portions of the winding body and the O-ring. Since it is pulled out into the air path against the nipping pressure of the formed nip, the winding operation can be completed with a strong back tension applied to the ionization line between the nip and the winding body. . In addition, the O-ring attached to the winding body restricts the ionization line wound around the ionization line from being scattered around the ionization line.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is an enlarged view of a main part of an ionization wire winding device for an electrostatic precipitator according to an embodiment of the present invention, where (A) is a bottom view and (B) is a plan view. FIG. 2 is a flowchart showing the winding operation in the above embodiment. FIG. 3 is a schematic plan view of the above embodiment.

First, referring to FIG. 3, the ionizing wire winding device in this embodiment has a casing 11 having a rectangular shape in plan view.
Is equipped with. The casing 11 is a frame-shaped member formed of a sheet metal member, and has a large number of air introduction ports 12 arranged in a path of air to be cleaned. The air introduction port 12 is formed by cutting and raising a part of the material of the casing 11, so that the width direction of the casing 11 (vertical direction in FIG. 3).
The standing piece 13 is formed in the shape of a slit that extends for a long time, and the raised piece 13 that is cut and raised constitutes the counter electrode of the ionization line L.

Further, on the one end side in the longitudinal direction of the casing 11, there is provided a housing portion 15 for housing various functional parts and electrical components. A guide pulley 14a for guiding an ionization wire L drawn from a winding body M1 described later is arranged at one end of the housing portion 15. On the other end side of the casing 11, a transition guide pulley 14b is arranged which faces the guide pulley 14a in the longitudinal direction of the casing 11. Then, between the guide pulleys 14a and 14b, the guide pulleys 14a and 14b
A large number of guide pulleys 14c are arranged side by side in the facing direction of 14b, and constitute a first pulley group 14C. Further, on the other end side in the width direction of the casing 11,
A large number of guide pulleys 14d facing the respective guide pulleys 14c of the first pulley group 14C are arranged.
It constitutes a pulley group 14D. And both pulley groups 1
The air inlet 12 is sandwiched between 4C and 14D. Therefore, as shown in FIG. 3, the ionization wire L drawn from the winding body M1 is first bridged from the guide pulley 14a to the crossover guide pulley 14b, and further, from the crossover guide pulley 14b to the guide of the second pulley group 14D. Pulley 14d
And then alternately over the guide pulley 14c of the first pulley group 14C and the guide pulley 14d of the second pulley group 14D so that the ionized wire L faces the air introduction port 12 Winding body M2 from M1
Is being handed over to.

An unused ionization wire L is wound around the accommodating portion 15, and a wound body M1 rotatable in the direction for drawing out the ionization wire L and used ionization drawn out from the wound body M1. A winding body M2 for winding the wire L and a geared motor M3 as a driving means are provided. Figure 1
As shown in (A) and (B), the wound body M1 has a wound portion M1 having a circular cross section around which an unused ionization wire L is wound.
1 and flange portions M provided at both ends of the winding portion M11
It is a resin or metal molded product integrally having 12, M13, and is rotatably mounted on the bottom plate 15a of the housing portion 15 via the support shaft 16.

As shown in FIG. 3, the winding body M2 is
It is a hobbin-shaped member made of the same material as the wound body M1, and is rotatably supported on the bottom plate 15a of the accommodating portion 15 via a support shaft 17. Further, the geared motor M3 is for rotating the winding body M2 only in the winding direction of the ionization wire L, and is attached to the lower portion of the bottom plate 15a.

Referring to FIGS. 1A and 1B, a ratchet blade M41 is integrally formed on one flange portion (a flange portion on the bottom plate 15a side in this embodiment) M12 of the wound body M1. The flange portion M12 is
It constitutes a ratchet car. Further, the bottom plate 15a
In the vicinity of the outer periphery of the flange M12, the square window 18
Through the square window 18, the latch M43 of the ratchet lever M42 meshes with the ratchet blade M41 of the flange portion M12.

As shown in FIG. 1 (A), the ratchet lever M42 is disposed on the lower surface side of the bottom plate 15a of the accommodating portion 15, and has a main body portion M421 extending in one tangential direction of the flange portion M12 and a main body portion. Provided at one end of the part M421,
A support shaft M422 that rotatably supports the main body portion M421 with respect to the bottom plate 15a is provided. The latch M43
Is fixed to a middle part of the main body M421 and protrudes above the accommodation portion 15 from the square window 18. In addition, the other end of a tension coil spring M423, whose one end is fixed to the lower surface of the bottom plate 15a, is fixed in the middle of the main body M421, and the latch M43 and the ratchet blade are biased by this tension coil spring M423. The meshed state with M41 is maintained.

At the other end of the main body M421, a solenoid M
Forty-four rods M441 are connected. Solenoid M
Reference numeral 44 constitutes a main part of an engagement / disengagement drive unit that engages / disengages the latch lever M42 with respect to the ratchet blade M41 of the flange M12, and supports the main body M421 at the support shaft during a winding operation described later. Figure 1 focusing on M422
It is for releasing the meshed state of the latch M43 and the ratchet blade M41 by rotating in the counterclockwise direction in (A).

M45 is a control unit composed of a microcomputer and other electrical components, and drives the geared motor M3 to rotate at predetermined timings (for example, every 3 to 6 months), and correspondingly to the solenoid M44. To excite. Then, the ratchet blade M41 of the flange portion M12 and the latch lever M4
2, the solenoid M44, the control unit M45, etc.
At the time of winding the ionized wire L by the driving means M3, the winding body M
The rotation control means M4 constitutes a main part of the rotation control means M4 which permits the rotation of the winding body M1 and allows the rotation of the winding body M1 before the completion of the winding drive of the driving means M3. In this example,
The control unit M45 also serves as control means for the geared motor M3.

Next, the operation of this embodiment will be described with reference to FIG. First, when the control unit M45 starts the winding operation (step S1), the solenoid M
44 is excited (step S2), the ratchet blade M41 formed on the flange portion 12 of the winding body M1 to the latch M
The meshing state of 43 and the ratchet blade M41 is released, and the wound body M1 becomes rotatable (step S3).
Further, when the control unit M45 starts the winding operation, the geared motor M3 operates (step S4), and thus the winding operation is started, and the used ionization wire L is transferred to the winding body M2. Being rolled up. At the same time, the wound body M1 is rotated in the direction in which the ionization line L is drawn out, and the unused ionization line L is guided by the guide pulley 14
It is bridged from a to the crossover guide pulley 14b.
From the transition guide pulley 14b to the guide pulley 14d of the second pulley group 14D and the guide pulley 1 of the first pulley group 14C
4c and 4c alternately, and is stretched in the air path by facing the air inlet 12 (step S
5).

The winding length of the ionizing wire L is calculated, for example, from the rotation speed of the winding body M2, and the winding length is compared with a predetermined length stored in advance (step S).
6). Then, in the present embodiment, when the calculated winding length reaches the predetermined length, first, the solenoid M44 is demagnetized (step S7). As a result, in this embodiment, the latch M43 is engaged with the ratchet blade M41 formed on the flange portion M12 of the winding body M1 by the biasing force of the tension coil spring M423, and the rotation of the winding body M1 is restricted first. (Step S7).

On the other hand, since the geared motor M3 still drives the winding body M2 to rotate, the rotation control means causes the winding body M to be driven before the driving of the geared motor M3 is completed.
Since the rotation of No. 1 is restricted, a strong back tension is applied to the ionized wire L drawn out to the air path between the winding body M1 and the winding body M2 whose rotation is restricted. Then, the geared motor M3 is delayed by, for example, 2 to 3 seconds by the solenoid M44 and stopped (step S9), whereby the winding operation is completed (step S10).

After the winding operation, if the ionization wire L is loosened, especially if it is loosened as the use is continued, the winding body M1 is pulled out. It may be rotationally driven in the opposite rotation direction. As a result, the ratchet blade M41 is latched by the latch M43.
Rotate while sliding on the top, re-engage with the latch M43 with further back tension applied to the ionization line L,
The slack of the ionization line L can be eliminated.

As described above, according to the ionization wire winding device of the present embodiment, the ionization wire L drawn into the air path (in the air introduction port 12 of the casing 11) is wound in a restricted rotation. Since a strong back tension is applied between the body M1 and the winding body M2, it is possible to reliably prevent the slack of the ionization line L due to the winding operation. In particular, according to this embodiment, further back tension can be applied to the ionization wire L after the winding is completed,
Even if you continue to use the product for a long time,
There is an advantage that the looseness can be surely eliminated by a simple maintenance work.

In addition, according to the present embodiment, since the back tension is applied by the winding body M1 and the winding body M2, the guide pulleys 14c and 14d can be displaced or via an elastic body. There is no need to apply tension to the ionization line L, and there is an advantage that it contributes to the simplification of the structure. Next, another embodiment shown in FIGS. 4 and 5 will be described.

FIG. 4 is a schematic perspective view of a wound body according to another embodiment of the present invention, and FIG. 5 is a schematic plan view of the embodiment shown in FIG. With reference to these drawings, in this embodiment, a winding portion M1 having a circular cross section around which an unused ionization wire L is wound.
1 and flange portions M provided at both ends of the winding portion M11
A wound body M1 of a resin or metal molded product integrally having 12, 12 and M13, and the ionized wire L wound around the wound portion M11 and arranged around the outer circumference of the wound ionized wire L. The flange portion M12,
An O-ring M5 that forms a nip N of the ionization line L to be drawn to the air path (the air introduction port 12 of the casing 11) with one of the M13 and the ionization line L against the clamping pressure of the nip N. The main point is to include a geared motor M3 that rotates the winding body M2 in the winding direction of the ionization wire L with a driving force capable of pulling out.

As the O-ring M5, an elastic body such as rubber having a relatively high abrasion resistance is most suitable.
By interposing 5 between both flange portions 12 and 13, a strong tightening force can be applied to the nip N. As the geared motor M3, a motor having a torque capable of pulling out the ionized wire L against the tightening force of the nip N is adopted.

According to the ionization wire winding device of the present embodiment, when the winding operation by the geared motor M3 is started, the ionization wire L becomes the flange portion M12 of the winding body M1.
Since it is pulled out into the air path against the holding pressure of the nip N formed between one of the M13 and the O-ring M5,
The winding operation can be completed with a strong back tension applied to the ionization wire L between the nip N and the winding body M2. In addition, the O-ring M5 attached to the wound body M1 restricts the ionization line L wound around the ionization line L from being scattered.

Therefore, also in the structure of this embodiment, it is possible to reliably prevent the slack of the ionization wire L due to the winding operation. In addition, the O attached to the winding body M1
The ring M5 restricts the ionization line L wound around the ionization line L from being scattered, so that the ionization line L can be replaced when the winding body M1 is newly replaced.
There is also an advantage that it can be prevented from jumping out of the winding body M1.

The above-mentioned embodiments are merely examples of preferred embodiments of the present invention, and the gist of the present invention is not limited to the above-mentioned embodiments. For example, the ratchet wheel of claim 1 is, in the embodiment of FIG. 1, a flange portion M1 having a ratchet blade M41 formed integrally with the winding body M1.
2, the bottom plate 15a of the housing portion 15 is embodied.
A well-known ratchet wheel that is rotatably supported may be provided on the ratchet wheel, and a hobbin-shaped winding body may be integrally rotatably and detachably attached to the ratchet wheel, and the gist of the present invention is not changed. It goes without saying that various design changes can be made within the range.

[0033]

As described above, according to the first aspect of the present invention.
According to the ionization wire winding device of the described electrostatic precipitator, the ionization wire drawn out to the air path is subjected to a strong back tension between the winding body and the winding body whose rotation is restricted, It is possible to reliably prevent the slack of the ionization wire due to the winding operation.

Further, according to the ionization wire winding device of the electrostatic precipitator according to claim 2 of the present invention, in addition to the above effects, further back tension can be applied to the ionization wire, so that the product can be used for a long period of time. Even when continuing, there is an advantage that slack can be surely eliminated by a simple maintenance work. On the other hand, according to the ionization wire winding device of the electrostatic precipitator according to claim 3 of the present invention, the winding operation can be completed in a state where a strong back tension is applied to the ionization wire between the nip and the winding body. Therefore, it is possible to reliably prevent the slack of the ionization wire due to the winding operation, as in the configuration according to the first aspect. In addition, the O-ring attached to the wound body restricts the ionized wire wound around the ionized wire from being scattered, so that when the new wound body is replaced, There is also an advantage that the ionized wire can be prevented from jumping out of the wound body.

As described above, according to the present invention, there is a remarkable effect that the back tension can be surely applied to the ionization line. Moreover, in any of the above configurations, since the back tension is applied by the winding body and the winding body, the guide pulley can be configured to be displaceable, or the ionization line L can be tensioned via the elastic body. There is an advantage that it contributes to the simplification of the structure.

[Brief description of drawings]

FIG. 1 is an enlarged view of a main part of an ionization wire winding device for an electrostatic precipitator according to an embodiment of the present invention, in which (A) is a bottom view,
(B) is a plan view.

FIG. 2 is a flowchart showing a winding operation in the above embodiment.

FIG. 3 is a schematic plan view of the above embodiment.

FIG. 4 is a schematic perspective view of a wound body according to another embodiment of the present invention.

5 is a schematic plan view of the embodiment of FIG.

[Explanation of symbols]

 L ionization line M1 winding body M2 winding body M3 drive means M4 rotation control means M5 O-ring

Claims (3)

[Claims] 1. An unused ionization line (L) is wound in an ionization line winding device of an electrostatic precipitator in which an ionization line (L) is stretched in a path of air to be cleaned to charge dust. And ionized radiation
A wound body (M1) that can rotate in the direction to draw (L), and a used ionization wire (L) drawn from the wound body (M1)
The winding body (M2) that winds up the winding body, the drive means (M3) that rotationally drives the winding body (M2) in the winding direction of the ionization line (L), and the ionization line (L) by the driving means (M3). Winding body when winding
(M1) is allowed, the rotation control means (M4) for restricting the rotation of the winding body (M1) prior to the end of the winding drive of the drive means (M3) is provided. Ionized wire winding device for electric dust collector. 2. The rotation control means (M4) includes a ratchet wheel (M12, M41) provided on the winding body (M1) side and a ratchet wheel (M12, M12).
41) Releasably meshing with the ratchet wheel (M12, M41) while meshing with the ratchet wheel (M12, M41) to prevent the winding body (M1) from rotating in the drawing-out direction of the ionization line (L). Install the latch lever (M42) and the latch lever (M42) in the ratchet wheel (M1
2. An ionization wire winding device for an electrostatic precipitator according to claim 1, further comprising an engagement / disengagement drive section (M44) for engagement / disengagement drive with respect to 2, M41. 3. An unionized wire (L) is wound integrally with a wound part having a circular cross section around which the unused ionized wire (L) is wound, and flange parts provided at both ends of the wound part. A wound body (M1) that can rotate in the pull-out direction and a used ionization wire (L) drawn from the wound body (M1)
In the ionization wire winding device of the electrostatic precipitator, which is equipped with a winding body (M2) that winds up and charges the dust by stretching the ionization wire (L) in the path of the air to be cleaned. It is arranged on the outer circumference of the ionization wire (L) wound around the part (M11) to prevent the wound ionization wire (L) from coming apart, and one of the flange parts (M12, M13) above. Ionization line (L) to be drawn into the air path between and
Of the O-ring (M5) that forms the nip (N) of the above, and the driving force that can draw out the ionization line (L) against the clamping pressure of the nip (N), (L)
An ionization wire winding device for an electrostatic precipitator, comprising: a drive means (M3) for rotationally driving in a winding direction.