JP2522119B2 - Ceiling hanging air purifier - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-suspended air purifier, and more particularly, to a ceiling-suspended air purifier capable of collecting oil droplets from an electrostatic precipitating element.

[0002]

2. Description of the Related Art Generally, as a ceiling hanging type air cleaner, a structure shown in FIG. 11 is widely known (for example, Japanese Patent Laid-Open No. 62-286564). In that structure, the casing 1 suspended from the ceiling 100
The casing 101 is provided in the casing 101 by the suction force of a fan 102 disposed therein.
3 is provided with a suction grill 104 for sucking the air and a blow grill 105 for returning the sucked air to the room 103. On the upstream side of the fan 102, an electric dust collecting element 106 for removing dust in the air sucked from the suction grill 104 is arranged. Is attached to and detached from the inside of the casing 101 through an element entrance 107 formed in the casing 101. The element entrance and exit 107 is configured to be opened and closed by an electrode receiving panel 108 that covers the entire lower surface of the casing 101. One end of the electrode panel 108 in the longitudinal direction is pivotally supported on the lower surface of the casing 101, and the electrode panel 108 is opened and closed by rotating while the electric dust collecting element 106 is seated on the upper surface on the other end side. The dust collection element 106 is configured to be detachable from the casing 101.

The above-mentioned structure is used, for example, in a yakiniku restaurant, an eel restaurant,
When installed in a restaurant such as a Chinese restaurant or a place where a large amount of oil mist is generated, such as a factory, the oil collected in the dust collecting portion 106a of the electric dust collecting element 106 is collected during long-term use. There is a problem that it falls and leaks to the outside. Therefore, as shown in FIG. 12, an oil pan 110 is arranged immediately below the electrostatic precipitator element 106,
With this oil pan 110, the electrostatic precipitator element 1
A structure in which the oil dripping from the dust collecting unit 106a of 06 is collected is conceivable.

However, if the oil pan 110 is arranged just below the electrostatic precipitating element 106, the oil pan 110 and the dust collecting portion 106a must be individually maintained, which results in a high frequency of maintenance work. There is. Further, there is a possibility that the oil pan may be forgotten to be attached when the maintenance work of the dust collecting portion 106a is completed.

The present invention has been made in view of the above problems, and enables the oil dripping from the dust collecting portion of the electrostatic precipitator element to be collected, and the oil collecting work and other maintenance work can be performed. It is an object of the present invention to provide a ceiling-hung air purifier that can be easily performed.

[0006]

In order to solve the above-mentioned problems, the ceiling-hung air purifier according to claim 1 of the present invention comprises an electric dust collecting element having a dust collecting portion for removing dust in the air. An oil pan for collecting oil droplets of the electrostatic precipitating element, a casing accommodating the oil pan and the electrostatic precipitating element, and an element inlet / outlet formed on the lower surface of the casing are provided below the electrostatic precipitating element. ,
An oil pan holding member that detachably holds the oil pan is integrally provided.

Further, in the ceiling-hung air purifier according to the second aspect of the present invention, the oil pan is set to a volume capable of accommodating the oil accumulated within the regular maintenance intervals of the dust collecting portion. Further, in the ceiling-hung air purifier according to claim 3, the lower surface of the casing is provided with an element support mechanism that supports a lower portion of the electrostatic precipitator element, and a lid body that opens and closes below the element support mechanism. The oil pan holding member receives the electrostatic precipitator element via the oil pan.

Further, in the ceiling-hung air purifier according to the present invention, the electric dust collecting element is provided with a cover detachably covering the upstream side of the dust collecting portion, and the ionizing electrode wire is provided on the cover. The counter electrode plate is integrally provided.

[0009]

According to the structure of the first aspect, the oil pan and the electrostatic precipitator element can be arranged integrally with each other in the casing. As a result, even when the oily air is cleaned,
Oil drops on the electrostatic precipitator will not leak outside the casing. Further, according to the configuration of the second aspect, since the oil accumulated in the oil pan can be discarded at the same time as the maintenance work of the dust collecting portion, it is not necessary to perform the maintenance work individually.

Further, according to the third aspect of the present invention, if the electrostatic precipitating element is to be housed in the casing with the oil pan left unattached, the electrostatic precipitating element is lowered by the height of the oil pan. As it goes down, the lid does not close. Further, according to the configuration of claim 4,
In addition to the oil pan being removable, by removing the cover, the dust collecting part, the ionizing electrode part, and the counter electrode plate can be easily separated.

[0011]

Embodiments will be described in detail below with reference to the accompanying drawings showing embodiments. As shown in FIG.
A casing 12 suspended from the casing 12 is fixed, and an element entrance 13 is opened on a lower surface of the casing 12. A lid 15 is rotatably supported by a lower edge of the casing 12 via a hinge 14, and the element inlet / outlet 13 is opened and closed by the lid 15. And the above element doorway 1
3, the electric dust collecting element 16 is
It is configured to be attached and detached inside.

Referring to FIG. 2, in the electrostatic precipitator element 16 of this embodiment, a plurality of ground side electrode plates 18a and high voltage side electrode plates 18b are alternately arranged in a rectangular frame 17. The dust collecting unit 18 configured as described above is provided. The upstream side of the dust collecting portion 18 is covered by a cover 17a of the frame 17, and the cover 17a has a horizontally extending ionization electrode wire 19 facing the dust collecting portion 18 including a coil spring (not shown). It is fixed via a tension member. Further, on the cover 17a, a counter electrode plate 20 and an air inlet 21 formed simultaneously by, for example, a punching process are formed to be long horizontally, and the counter electrode plate 20 and the air inlet 2 are formed.
1 faces the ionization electrode wire 19. And like the well-known electric precipitating element, this air inlet 2
1, a dust-containing gas mixed with dust and tobacco smoke is introduced into the inside, and the dust particles contained in the dust-containing gas are charged by the ionization electrode wire 19 and the counter electrode plate 20, and then the ground-side electrode plate 18 a The dust-containing gas is cleaned by collecting the dust.

In this embodiment, since the fitting type cover 17a which is detachably fitted to the frame body 17 is adopted, only by removing the cover 17a from the frame body 17, the ionization electrode wire 19 and the counter electrode are formed. The plate 20 can be attached and detached at once. Therefore, since the electric dust collecting element 16 can be easily divided into the dust collecting part 18 and the counter electrode part, maintenance work becomes easy.

When the counter electrode plate 20 is used as the front surface, the rear side is inclined downward on both side surfaces 22 of the frame body 1.
A pair of handles 23 (only one is shown) are welded. Further, a pair of angle-shaped element holding members 24 are welded to a lower portion of the both side surfaces 22, and the lower portion of the oil pan 25 is held by the element holding members 24. Here, the capacity V of the oil pan 25 in this embodiment is η for the oil mist removal efficiency of the dust collecting portion 18, Q for the treated air volume (m ³ / min), T for the operating time of one day, and the electrostatic precipitator element 16 Let D be the regular maintenance interval days and α be the safety factor,

[0015]

[Equation 1] It is represented by.

As described above, in this embodiment, since the element holding member 24 is adopted, the oil pan 25 can be arranged in the casing 12 integrally with the electrostatic precipitator element 16, and as a result, the electrostatic precipitator is obtained. The oil droplets of the element 16 can be effectively collected.

Moreover, in this embodiment, the oil pan 2
Since the capacity V of 5 is set as described above, the dust collecting unit 18
Since the oil accumulated in the oil pan 25 can be discarded at the same time as the maintenance work, the two types of maintenance work can be performed at one time. Engaging members 26 and 27 formed of C-shaped channels, which extend in the front-rear direction of the electrostatic precipitator element 16 and open downward, are welded to the upper portions of both side surfaces 22 of the electrostatic precipitator element 16.

Referring to FIG. 3, the engaging members 26 and 27 are provided.
Are horizontal extensions 26a and 27a and horizontal extensions 26a and 27a, respectively, which are horizontally away from the electrostatic precipitating element 16.
A vertical extension 26 that extends vertically downward from the tip of the
b and 27b are integrally provided. In the present embodiment, the width of the electrostatic precipitating element 16 in the left-right direction is different from each other. In the structure of FIG. 3, the width L1 of the right engaging member 26 is larger than the width L2 of the left engaging member 27. Widely set.

On the other hand, rails 28 and 29 as temporary receiving portions facing the respective engaging members 26 and 27 in the vertical direction are provided in the portion of the casing 12 near the element inlet / outlet 13. Each rail 28, 29 has a horizontal extension 28 extending horizontally toward the electrostatic precipitating element 16.
a, 29a, and from the tip of the horizontal extension 28a, 29a,
Vertical extending portions 28b, 29b extending vertically toward the central portion of the lower surface of the corresponding engaging member horizontal extending portions 26a, 27a.
And are integrated. The height h1 of the vertical extension portions 28b, 29b is set higher than the height h2 of each engagement member vertical extension portion 26b, 27b.
Each engaging member is set so as to be able to receive the horizontally extending portion 26a, 27a. Also, each engaging member vertical extension 26
The heights h2 of b and 27b are tilted by a small angle of, for example, about 10 degrees at the time of engaging and disengaging work of the electrostatic precipitator element 16 which will be described later, so that the engaging member vertical extensions 26b and
7b are set to dimensions that allow them to be disengaged from the corresponding vertically extending portions 28b, 29b of the rails 28, 29, respectively.
In this embodiment, the vertical extending portions 28b, 29b of the rails 28, 29 are respectively connected to the corresponding engaging members 26, 2
By opposing the intermediate portion 7, the electrostatic precipitating element 16 can be moved by a predetermined stroke in the direction in which the engaging members 26 and 27 protrude (the left-right direction in FIG. 3). A portion of the side wall of the casing 12 near the upper side of the rail 29 has a shape in which a lower side is away from the electric dust collecting element 16.
The engaging member 26 forms a space S for engaging and disengaging from the rail 28. The rails 28 and 29 are connected to the frame 4 that defines the element entrance 13 of the casing 12.
0, the frame 4
0, a pair of element support mechanisms A that support the lower portion of the electrostatic precipitator element 16 via the oil pan 25 are provided.

4 to 6, each element support mechanism A extends in the front-rear direction of the electrostatic precipitator element 16 and abuts against the lower surface of the oil pan 25, so that the electrostatic precipitator element 16 is contacted. And a U-shaped support wire 41 for holding the support wire 41, which is arranged in a posture facing the electrostatic precipitating element 16 in the front-rear direction, is fixed to the lower surface of the frame 40 by a screw 42, and holds the support wire 41. It is embodied by first and second stops 43, 44.

The support wire 41 is formed by bending a steel bar having high rigidity, for example, and hook portions 41a are formed at both ends thereof. In this embodiment,
Although a structure in which one oil pan 25 is held by a pair of support wires 41 is adopted, one or three support wires 41 may be used depending on the type of the air cleaner.
The first stopper 43 includes a hook portion 43a that opens upward, and the hook portion 43a pivotally supports the intermediate curved portion of the support wire 41. The second stopper 44 has a pair of L-shaped hooks 44a opposed to each other in the left-right direction of the electrostatic precipitating element 16, and the L-shaped hooks 44a allow both ends of the support wire 41 to be opposed. The part is supported.

In this embodiment, the supporting wire 41 is arranged in a posture extending in the front-rear direction of the electrostatic precipitator element 16, and the electrostatic precipitator unit 16 is supported through the oil pan 25, so that FIG. As shown on the right side of FIG. 3, when the electrostatic precipitating unit 16 is housed in a state where the oil pan 25 is not attached, the element holding member 24 is exposed downward and the lid 15 cannot be closed. For this reason, oil pan 2
It is possible to reliably prevent the electric dust collection unit 16 from being mounted on the casing 12 when the user forgets to mount the electric dust collection unit 5.

Next, the operation will be described. In order to remove the electrostatic precipitating element 16 from the storage state shown in FIG. 3, first, the lid 15 is rotated to open the element entrance 13 (see FIG. 1). Next, while supporting the lower surface of the oil pan 25 with one hand, by hooking the hook portion 41a of the support wire 41 shown in FIGS. Both ends of the supporting wire 41 are separated from the second stopper 44, and the hook portion 43a of the first stopper 43 is released.
The oil pan 25 is released by pivoting downward about the intermediate curved portion supported by the shaft. Then, by lowering the hand supporting the lower surface of the oil pan 25 from this state, the engaging members 26 and 27 of the electrostatic precipitating element 16 are brought into contact with the corresponding rails 29 and 3 as shown in FIG.
She sits at 0 and is temporarily accepted. Next, from the state of FIG.
By holding the engaging member 3 with both hands and tilting the engaging member 7 side of the electrostatic precipitating element 16 upward, the engaging member 26 is still engaged with the rail 28 as shown in FIG. 7 is removed from rail 29. Next, by sliding the electrostatic precipitator element 16 toward the rail 28 from the state shown in FIG. 8, the engaging member 26 is made to face above the element inlet / outlet port 13 as shown in FIG. 9. Further, by tilting the engaging member 26 side of the electric dust collecting element 16 downward from the state of FIG. 9, the electric dust collecting element 16 is taken out of the casing 12 from the engaging member 7 side as shown in FIG. It is. Finally, the electrostatic precipitating element 16 can be removed from the casing 12 by swinging the engaging member 7 toward the space S from the state shown in FIG.

In addition, the electrostatic precipitating element 16 is tilted up and down in the reverse order of the above-mentioned operation, and the engaging members 26 and 27 are temporarily placed on the rails 28 and 29, and then the oil pan 25 is held with one hand. By lifting the lower surface upward and operating the element support mechanism A with the other hand, the electrostatic precipitator element 16 removed from the casing 12 can be mounted.

As described above, in this embodiment, by engaging the engaging members 26 and 27 with the rails 28 and 29, the electrostatic precipitating element 16 having the oil pan 25 can be temporarily suspended. , By tilting the electrostatic precipitator element 16 up and down, the rails 28, 2
Since the electric dust collecting element 16 can be detached from the casing 12 by disengaging the electric dust collecting element 16 from the casing 12, the electric dust collecting element 16 integrally provided with the oil pan 25 can be easily inserted and removed. Moreover, the electric dust collecting element 1
6 is tilted up and down so that the engagement members 26 and 27 are
Since the structure for engaging with 9 is adopted, it is possible to insert and remove the electrostatic precipitating element 16 in a small space.

Further, in this embodiment, since the handle 23 is fixed in a posture inclining rearward, the electrostatic precipitating element 16 is held when holding the electrostatic precipitating element 16 above the head of the person who carries out the removing work. It becomes easier to grab. In addition, when the handle 23 is mounted so that the mounting position is opposed to the center of gravity of the electrostatic precipitating element 16, the handle 23 is more easily held.

Needless to say, the grip 23 may be omitted when embodying the present invention, and various modifications may be made within the scope of the claims of the present invention.

[0028]

As described above, according to the present invention,
Since the element holding member is employed, the oil pan can be arranged integrally with the electrostatic precipitator element in the casing, and as a result, the oil droplets of the electrostatic precipitator element can be effectively collected. Further, according to the second aspect of the present invention, since the oil accumulated in the oil pan can be discarded at the same time as the maintenance work of the dust collecting portion, two types of maintenance work can be performed at one time, and the efficiency of the maintenance work can be improved. Can be realized.

Further, according to the invention described in claim 3,
When the electrostatic precipitator unit is housed without the oil pan attached, the element holding member is exposed downward and the lid cannot be closed. Therefore, it is possible to reliably prevent the electrostatic precipitating unit from being attached to the casing without forgetting to attach the oil pan. Further, according to the invention described in claim 4, the ionization electrode wire and the counter electrode plate can be attached and detached at once by simply removing the cover.
Therefore, the electric dust collecting element can be easily divided into the dust collecting portion and the counter electrode portion, which facilitates the maintenance work.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of the present invention.

FIG. 2 is a partially cutaway perspective view of the electric dust collecting element of the present invention.

FIG. 3 is a cross-sectional view showing a state where the electric dust collecting element of the present invention is housed inside a casing.

FIG. 4 is a side view of the element holding mechanism of the present invention.

FIG. 5 is a front view of the element holding mechanism of the present invention.

FIG. 6 is a perspective view showing a use state of the element holding mechanism of the present invention.

FIG. 7 is a sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 8 is a sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 9 is a cross-sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 10 is a sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 11 is a schematic cross-sectional view showing a conventional example.

FIG. 12 is a schematic sectional view showing a basic structure in the development process of the present invention.

[Explanation of symbols]

 12 Casing 13 Element Inlet / Outlet 16 Electrostatic Dust Collection Element 18 Dust Collection Section 24 Oil Pan Holding Member 25 Oil Pan

Claims (4)

(57) [Claims] 1. An electric dust collecting element (16) having a dust collecting portion (18) for removing dust in the air, and an electric dust collecting element (16).
Oil pan (25) for collecting the oil droplets, and a casing (1) housing the oil pan (25) and the electrostatic precipitator element (16).
2) and an element inlet / outlet port (13) formed on the lower surface of the casing (12), and an oil pan holding for detachably holding the oil pan (25) under the electrostatic precipitator element (16). A ceiling-hung air purifier characterized in that a member (24) is integrally provided. 2. The ceiling-hung air purifier according to claim 1, wherein the oil pan (25) is set to have a volume capable of accommodating oil accumulated within the regular maintenance intervals of the dust collecting section (18). . 3. An element support mechanism (A) for supporting the lower portion of the electrostatic precipitator element (16) on the lower surface of the casing (12), and a lid body (15) that opens and closes below the element support mechanism (A). ) And the oil pan holding member (24), the oil dust collecting element (16) via the oil pan (25).
The ceiling-hung air purifier according to claim 1, which receives the above. 4. The electrostatic precipitator element (16) includes a cover (17a) detachably covering the upstream side of the dust collector (18),
The ceiling-hung air purifier according to claim 1, wherein the cover (17a) is integrally provided with an ionization electrode wire (19) and a counter electrode plate (20).