JPS6322859B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electrostatic precipitator, and more particularly to an electrostatic precipitator that uses a turbo fan rotated by a drive motor to take outside air through a filter and discharge it through a suction and discharge chamber. This relates to a dust collector.

[Conventional technology]

In the conventional electrostatic precipitator, as shown in FIGS.
4, 15 from the bottom: dust collection chamber 16, fan chamber 17,
The discharge chamber 18 is divided in this order, the dust collection chamber 16 is provided with the suction port 5, the discharge chamber 18 is provided with the discharge port 6, the dust collection chamber 16 is provided with the filter 10, and the fan chamber 17 is provided with the suction port 5 from the bottom surface to the side surface. It is known that a turbo fan 8 is disposed to discharge more water, and a drive motor 7 is disposed above the turbo fan 8. In addition, a fan chamber 1 is provided in one corner of the upper partition plate 15.
A communication path 15a is formed between the communication path 15a and the discharge chamber 18, a discharge port 6 is provided at a diagonal corner of the communication path 15a, and a portion from the communication path 15a to the discharge port 6 is configured as a muffling path. ing.

[Problem that the invention seeks to solve]

Such a conventional electrostatic precipitator has the problem that a sufficient noise reduction effect cannot be obtained because the noise reduction passage from the communicating path 15a to the discharge port 6 is short and there is only one passage enlargement in this noise reduction passage. had.

[Means for solving problems]

The present invention has been made based on this point, and the interior of the case 36 having a rectangular cross section is divided into partition plates 37,
38 is divided into a dust collection chamber 39, a fan chamber 40, and a discharge chamber 41 from the bottom in this order, and the dust collection chamber 39 is divided into a suction port 2.
5 is provided, a discharge port 26 is provided in the discharge chamber 41,
A filter 30 is disposed in the dust collection chamber 39, and a turbo fan 28 is disposed in the fan chamber 40, which takes suction from the bottom surface and discharges from the side surface.
In an electrostatic precipitator in which the drive motor 27 is disposed above, a communication passage 38a between the fan chamber 40 and the discharge chamber 41 is formed at one corner of the upper partition plate 38, and this communication passage A partition plate 33 extends halfway in the longitudinal direction of the case 36 from a short side surface of the case 36 where the discharge chamber 38 is located, and forms a partition plate 33 that partitions the discharge chamber 41. The discharge port 2 is located on the communication path side.
6, the drive motor 27 is disposed on the tip side of the partition plate 33, and a substantially semicircular guide plate 35 is provided surrounding the drive motor 27 and facing the front, side and back surfaces of the case 36. This is an electrostatic precipitator characterized by the following:

[Effect]

According to this electrostatic precipitator, the inside of the discharge chamber 41 formed at the top of the case 36 having a rectangular cross section is substantially divided into two in the longitudinal direction by the partition plate 33, the drive motor 27, and the guide plate 35. , fan room 4
The communication path 38a from 0, the discharge chamber 41, and the discharge port 26
and are located on both sides of the partition plate 33 and close to one side of the case 36, so that the communication passage 38a to the discharge port 26 forms a long substantially U-shaped silencing passage, thereby silencing the discharge chamber 41. The effect can be improved. In addition, case 3 in which the guide plate 35 has a rectangular cross section
Since it is approximately semicircular so as to face the front, side, and back surfaces of 6, it is expanded and compressed twice when flowing between these areas, and this also improves the silencing effect. Can be done. Furthermore, since the drive motor 27 is disposed at the leading end of the partition plate 33, and the guide plate 35 is provided so as to surround the drive motor 27, the outside air flowing before and after the partition plate 33 can be smoothly turned back and forth. The silencing effect can also be improved from this point of view.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 5 to 7. The case 36 consists of an upper case 21 and a lower case 22, and has a rectangular cross section. Inside the case 36, two partition plates 37, 37 divide the dust collection chamber 39, fan chamber 40, and discharge chamber 4 from the bottom.
It is divided in the order of 1. A suction port 25 is formed in a lower part of the case 36 in a portion forming a dust collection chamber 39 . A filter 30 is arranged in the dust collection chamber 39. A collision plate 32 is provided between the suction port 25 and the filter 30 to prevent dust taken in from the suction port 25 from colliding with the filter 30 at high speed. A dust box 24 is arranged directly below the filter 30, and is configured to drop and store dust adhering to the filter 30.
An opening 36a is formed in the lower back surface of the case 36,
A back panel 23 is provided to correct this. A turbo fan 28 is disposed in the fan chamber 40, which takes in air from the bottom surface and discharges air from the side surface. A communication path 37a is formed in the partition plate 37 facing the suction port of the turbo fan 28. A casing 29 is provided to cover the turbo fan 28.
A communication passage 38a that communicates the fan chamber 40 and the discharge chamber 41 is formed in one corner of the upper partition plate 38. Air discharged from the discharge port 29a of the casing 29 reaches the discharge chamber 41 through the communication path 38a. The drive motor 27 is located above this turbo fan 28.
The drive motor 27 is of a completely closed type, and extends through the discharge chamber 41 and protrudes from the upper surface of the case 36. A partition plate 33 is formed that extends halfway in the longitudinal direction of the case 36 from a short side surface of the case 36 where the communication passage 38 is located, and partitions the discharge port 41 . The tip of the partition plate 33 is connected to the drive motor 2
It is connected to the side of 7. This drive motor 27
A substantially semicircular guide plate 35 is provided to surround the case 36 and to face the front, side, and back surfaces of the case 36. The discharge port 26 of the discharge chamber 41 is provided close to the communication passage 38a and on the opposite side of the communication passage of the partition plate 33.

When the drive motor 27 is energized and the turbo fan 28 is rotated, outside air is sucked into the dust collection chamber 39 from the suction port 25, passes through the filter 30, is deposited on the dust filter 30, and then is transferred to the turbo fan 28.
Then, it is further discharged into the casing 29 from the discharge port 29a, passes through the communication passage 38a, and reaches the discharge chamber 41. Outside air is passed through the partition plate 33 and the case 3 in the discharge chamber 41.
6 in the longitudinal direction of the case 36,
It reaches the guide plate 35 and the drive motor 27,
Most of the water flows between the guide plate 35 and the front, side and back surfaces of the case 36, and a portion flows through the guide plate 35.
5 and the drive motor 27, and then between the partition plate 33 and the back of the case 36.
6 and is discharged from the discharge port 26.

According to this electrostatic precipitator, the inside of the discharge chamber 41 formed at the top of the case 36 having a rectangular cross section is substantially divided into two in the longitudinal direction by the partition plate 33, the drive motor 27, and the guide plate 35. , fan room 4
0 to the communication path 38a and the discharge port 26 of the discharge chamber 41
are located on both sides of the partition plate 33 and in close proximity to one side of the case 36, so that the communication path 38a to the discharge port 26 forms a long substantially U-shaped silencing passage, thereby silencing the discharge chamber 41. The effect can be improved. In addition, case 3 in which the guide plate 35 has a rectangular cross section
Since it is approximately semicircular so as to face the front, side, and back surfaces of 6, it is expanded and compressed twice when flowing between these areas, and this also improves the sound deadening effect. Can be done. Further, since the drive motor 27 is disposed at the leading end of the partition plate 33 and the guide plate 35 is provided so as to surround the drive motor 27, the outside air flowing before and after the partition plate 33 can be smoothly turned around. The silencing effect can also be improved from this point of view.

〔Effect of the invention〕

According to the present invention, it is possible to provide an electrostatic precipitator that can significantly improve the noise reduction effect with a simple configuration.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional electrostatic precipitator, Fig. 2 is a vertical cross-sectional front view of the same electrostatic precipitator, Fig. 3 is a vertical cross-sectional side view of the same electrostatic precipitator, and Fig. 4 is a longitudinal cross-sectional side view of the same electrostatic precipitator. FIG. 5 is a vertical cross-sectional front view of the electrostatic precipitator of the present invention, FIG. 6 is a vertical cross-sectional side view of the electrostatic precipitator, and FIG. 7 is a cross-sectional view of the electrostatic precipitator. It is a front view. 26...Discharge port, 27...Drive motor, 28...Turbo fan, 30...Filter, 33...Partition plate, 35
...Guidance board, 36...Case, 37, 38...Dividing board,
38a...Communication path, 39...Dust collection chamber, 40...Fan chamber, 41...Discharge chamber.

Claims (1)

[Claims] 1 The inside of the case 36 with a rectangular cross section is divided by a partition plate 37,
38 is divided into a dust collection chamber 39, a fan chamber 40, and a discharge chamber 41 from the bottom in this order, and a suction port 2 is provided in the dust collection chamber 39.
5 is provided, a discharge port 26 is provided in the discharge chamber 41,
A filter 30 is disposed in the dust collection chamber 39, a turbo fan 28 is disposed in the fan chamber 40 that sucks in from the bottom surface and discharges from the side surface, and the drive motor 27 is disposed above the turbo fan 28. In the device, a communication path 38a between the fan chamber 40 and the discharge chamber 41 is formed in one corner of the upper partition plate 38, and the case 36 is connected from the short side of the case 36 where the communication path 38a is located. A partition plate 33 is formed that extends halfway in the longitudinal direction and partitions the discharge chamber 41, and the discharge port 2 is located close to the communication passage 38a and on the side opposite to the communication passage of the partition plate 33.
6, the drive motor 27 is disposed on the tip side of the partition plate 33, and a substantially semicircular guide plate 35 is provided surrounding the drive motor 27 and facing the front, side and back surfaces of the case 36. An electrostatic precipitator characterized by the following: