JP2016209791A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner where air in a wide space is effectively cleaned and maintainability is excellent.SOLUTION: An air cleaner 1 comprises: a plurality of electrostatic precipitators 30R, 30L being disposed within the middle of an air conditioning chamber 10 exhausting air sucked from a suction port 11 from an exhaust port 12 and detachably having a plurality of electric dust collection units 70; and a frame 60 supporting the plurality of electrostatic precipitators 30R, 30L adjacently forming a row. The electric dust collection unit 70 has a discharge portion 71 charging floating fine particles p in the air by generating corona discharge and a collection portion 72 electrically sticking the charged floating fine particles p by the discharge portion 71. The frame 60 supports the plurality of electrostatic precipitators 30R, 30L to be respectively movable in a flow channel direction. The electrostatic precipitator 30R has an opening and closing lid 39 opening at the attaching and detaching of the electric dust collection unit 70 to the other adjacent electric precipitator 30L side.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an air cleaner that cleans air, and more particularly, to an electric dust collection type air cleaner.

  2. Description of the Related Art Conventionally, an electric dust collection type air purifier is known as an air purifier for purifying air, and is used for purifying air in various spaces such as houses, offices and restaurants.

  The electric dust collection type air purifier collects and removes fine particles floating in the air by the force of static electricity. For example, as disclosed in Patent Document 1, an electrostatic precipitator type air cleaner is an electrostatic precipitator having an electrode for charging fine particles floating in the air and an electrode for electrically attaching the charged fine particles. The unit collects fine particles floating in the air.

JP 2000-334330 A

  Here, such an electric dust collection type air cleaner needs to periodically remove particulates collected by the electric dust collection unit from the electric dust collection unit as one of the maintenance. Specifically, the collected dust particles are removed by removing the electrostatic dust collection unit from the air cleaner and washing the electrostatic dust collection unit with a cleaning liquid. Such maintenance is performed, for example, every one to four weeks, and the electric dust collection unit is attached and detached each time.

  There is also a desire to clean the air in large spaces such as amusement facilities, factories, hotels, etc. with an electric dust collection type air cleaner. When the air in such a large space is cleaned by an electric dust collection type air cleaner, a plurality of electric dust collection units are required depending on the size of the space. Therefore, from the viewpoint of maintainability, it is important that the electric dust collection unit is easily attached and detached, and the running cost can be reduced by facilitating the maintenance work.

  Moreover, the air cleaning efficiency of the electrostatic precipitator type air cleaner is affected by the ratio of the area occupied by the electrostatic precipitator unit in the cross section of the flow path through which the air to be cleaned passes. The greater the proportion of the area occupied by the electrostatic dust collection unit in the flow path cross section, the more efficient the air can be cleaned. Therefore, from the viewpoint of cleaning efficiency, the arrangement of the electric dust collection unit in the air flow path is important.

  Accordingly, an object of the present invention is to provide an air cleaner that effectively cleans air in a wide space and has good maintainability.

In order to solve the above problems, the air cleaner of the present invention is:
A plurality of electrostatic precipitators disposed in the middle of the flow path for exhausting air sucked from the suction port from the exhaust port, and having a plurality of electrostatic dust collection units detachably;
A pedestal that supports the plurality of electrostatic precipitators arranged in a row adjacent to the direction orthogonal to the direction of the flow path;
The electrostatic dust collection unit has a discharge unit that generates corona discharge to charge the suspended fine particles in the air, and a collection unit that electrically attaches the suspended fine particles charged by the discharge unit,
The gantry supports a plurality of the electrostatic precipitators movably in the direction of the flow path,
The electrostatic precipitator includes an open / close lid that is opened when the electric precipitator is attached to or detached from another adjacent electrostatic precipitator.

  Furthermore, the plurality of electrostatic dust collection units are arranged so as to be adjacent to each other in a direction orthogonal to the direction of the flow path.

  Further, the plurality of electric dust collection units are arranged in a plurality of rows.

  Furthermore, the electric dust collector is suspended and supported by the gantry.

  Furthermore, the electric dust collector includes a filter on the downstream side of the electric dust collection unit.

  Furthermore, a heat exchanger is provided at a predetermined interval on the downstream side of the electric dust collector.

  Furthermore, it is provided with the voltage detection apparatus which each detects the voltage applied to each of the said several electric dust collection unit, It is characterized by the above-mentioned.

Furthermore, a plurality of first warning lights respectively corresponding to the plurality of electric dust collection units,
A second warning light corresponding to all of the plurality of electrostatic dust collection units,
The first warning light and the second warning light are actuated according to a detection value of the voltage detection device.

Further, the discharge section includes a plurality of needle electrodes arranged in a matrix in a plane perpendicular to the direction of the flow path in a discharge space opened at both upstream and downstream ends of the flow path. ,
Each of the needle electrodes is composed of a counter electrode that forms the discharge space.
The collecting section includes a plurality of collecting electrode plates that divide a space continuous with the discharge space and divide the flow path into a plurality of parts,
A plurality of deflecting electrode plates that correspond to each of the collecting electrode plates and apply a deflecting force toward the collecting electrode plate to the suspended fine particles are characterized in that they are configured.

  According to the air cleaner of the present invention, a plurality of electrostatic precipitators disposed in the middle of the flow path for exhausting air sucked from the suction port from the exhaust port, and having a plurality of electrostatic dust collection units detachably, A plurality of supports for supporting the plurality of electrostatic precipitators arranged in a row in a direction perpendicular to the direction of the flow path, and the electrostatic precipitator unit generates corona discharge to float in the air. A discharge unit for charging fine particles; and a collection unit for electrically attaching the floating fine particles charged by the discharge unit, wherein the gantry has a plurality of the electric dust collectors in the direction of the flow path. The electrostatic precipitator is movably supported, and the electrostatic precipitator has an open / close lid that opens when the electric precipitator is attached to the side of another adjacent electrostatic precipitator. Clean and maintain Sex can provide good air purifier.

  Furthermore, according to the configuration in which the plurality of electrostatic dust collection units are arranged so as to be adjacent to each other in a direction orthogonal to the direction of the flow path, the air in a wide space is more effectively cleaned. In addition, an air cleaner with good maintainability can be provided.

  Furthermore, according to the configuration in which the plurality of electric dust collection units are arranged in a plurality of rows, an air cleaner that cleans the air in a wide space more effectively and has good maintainability. Can be provided.

  Furthermore, according to the configuration in which the electrostatic dust collector is suspended and supported by the gantry, the load per unit area applied to the surface on which the electrostatic dust collector is installed can be reduced. The degree of freedom of installation location is increased, and for example, space saving is possible.

  Furthermore, according to the configuration in which the electrostatic precipitator includes a filter on the downstream side of the electrostatic precipitator unit, it is possible to remove ozone in the air, deodorize, and the like.

  Furthermore, according to the structure provided with the heat exchanger at a predetermined interval on the downstream side of the electrostatic precipitator, the air can be effectively cleaned and the temperature of the air can be adjusted, which is convenient.

  Furthermore, according to the structure provided with the voltage detection apparatus which each detects the voltage applied to each of the said several electrostatic dust collection unit, abnormality of an electrical dust collection unit can be detected and it is convenient.

  And a plurality of first warning lights respectively corresponding to the plurality of electric dust collection units, and a second warning light corresponding to all of the plurality of electric dust collection units. According to the configuration in which the second warning light is operated according to the detection value of the voltage detection device, the abnormality of the electrostatic dust collection unit can be visually confirmed, and among the plurality of electrostatic dust collection units, An abnormal electric dust collection unit can be identified immediately, and it is easy to use.

  Further, the discharge section includes a plurality of needle electrodes arranged in a matrix in a plane perpendicular to the direction of the flow path in a discharge space opened at both upstream and downstream ends of the flow path. Each of the needle electrodes is formed with a counter electrode that forms the discharge space, and the collection unit divides a space continuous with the discharge space and divides the flow path into a plurality of collections. According to the configuration comprising an electrode plate and a plurality of deflection electrode plates corresponding to each of the collection electrode plates and applying a deflection force toward the collection electrode plate to the suspended fine particles, Fine particles can be effectively removed to clean the air.

It is the schematic side view by which an example of the air cleaner which concerns on this embodiment was shown. It is the side view by which schematic structure of the air cleaner of FIG. 1 was typically shown. It is the side view by which the principal part of the air cleaner of FIG. 2 was typically shown. It is the top view in which the principal part of the air cleaner of FIG. 2 was typically shown. It is the schematic perspective view by which an example of the state with which the electrostatic precipitator was supported by the mount frame was shown. It is the schematic perspective view by which the mount frame was shown. It is the schematic perspective view by which the electric dust collector located on the right side was shown. It is a schematic rear view of the electric dust collector of FIG. It is a schematic side view of the electric dust collector of FIG. It is the schematic side view by which the electrostatic precipitator of the state from which the opening / closing lid was removed was shown. It is the elements on larger scale of FIG. It is the schematic perspective view by which an example of the electric dust collection unit was shown. It is the schematic back view by which the connection mechanism of the electric dust collector was shown. It is the schematic sectional drawing by which the XIV-XIV line cross section in FIG. 13 was shown. It is a schematic plan view for demonstrating the movement of an electric dust collector. It is a schematic rear view of the electric dust collector located on the left side. FIG. 13 is a schematic horizontal sectional view showing the configuration of the electric dust collection unit of FIG. 12. It is the schematic front view by which the electric dust collection unit of FIG. 12 was shown. It is the schematic perspective view by which the internal structure of the collection part of the electric dust collection unit of FIG. 12 was shown. It is a schematic horizontal sectional view for demonstrating the collection function of the electric dust collection unit of FIG. It is the schematic plan view by which an example of the state of the air cleaner at the time of removing an electric dust collection unit from the electric dust collector located in the right side was shown. FIG. 22 is a schematic side view of FIG. 21. It is the schematic plan view by which an example of the state of the air cleaner at the time of removing an electric dust collection unit from the electric dust collector located in the left side was shown. It is the schematic by which the display panel was shown. It is a general | schematic horizontal sectional view by which an example of the structure of another electric dust collection unit was shown. FIG. 26 is a schematic vertical sectional view for explaining a collecting function of the electric dust collection unit of FIG. 25.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the structure of the air cleaner which concerns on this embodiment is demonstrated. FIG. 1 is a schematic side view illustrating an example of an air cleaner 1 according to the present embodiment, and FIG. 2 is a side view schematically illustrating a schematic configuration of the air cleaner 1 of FIG. 1. 3 is a side view schematically showing the main part of the air cleaner 1 of FIG. 2, and FIG. 4 is a plan view schematically showing the main part of the air cleaner 1 of FIG. It is. In the following, for convenience of explanation, the suction port 11 side described later in FIG. 2 is the front, the exhaust port 12 side is the rear, the floor F side where the air purifier 1 is installed is the bottom, and the opposite of the floor F The upper side is the upper side, the near side with respect to the paper surface is the left side, and the far side is the right side. Moreover, the arrow in FIG. 2 shows the flow direction of air.

  As shown in FIGS. 1 to 4, the air purifier 1 according to the present embodiment includes an air conditioning chamber 10 having an intake port 11 through which air is sucked and an exhaust port 12 through which the sucked air is exhausted, The rectifying plate 13, the pre-filter 14, the two electric dust collectors 30R and 30L, the gantry 60 that supports the two electric dust collectors 30R and 30L, the sterilization lamp 15, and the heat exchanger 16 that are disposed in the air conditioning chamber 10 are provided. And a suction fan device 17 and the like.

  The air conditioning room 10 is provided on the floor F, and is composed of left and right side walls, a front wall provided with an inlet port 11, a rear wall provided with an exhaust port 12, a roof, and the like. The appearance shape of the air conditioning chamber 10 is a rectangular parallelepiped shape extending in the front-rear direction. In the air-conditioning chamber 10, the rectifying plate 13, the pre-filter 14, the two electrostatic precipitators 30 </ b> R and 30 </ b> L, the sterilization lamp 15, and the heat exchange are arranged in order of the air to be cleaned from the suction port 11 to the exhaust port 12. A suction device 16 and a suction fan device 17 are arranged. The air to be cleaned is sucked into the air conditioning chamber 10 from the suction port 11 communicating with the duct 18 by the suction fan device 17. On the other hand, the air sucked into the air conditioning room 10 is discharged to the exhaust port 12 communicating with the duct 19. The duct 18 and the duct 19 are each communicated with an external space (not shown) that cleans the air inside. That is, the inside of the air conditioning chamber 10 is a flow path through which air to be cleaned passes, the suction port 11 side being the upstream side, and the exhaust port 12 side being the downstream side. The cross-sectional shape of this flow path is rectangular.

  The rectifying plate 13 is configured by arranging a plurality of plate-like members extending in the front-rear direction in the vertical direction. Each plate-like member is formed so as to be rotatable in the vertical direction with the horizontal direction as an axis. And the baffle plate 13 is comprised so that the flow direction of air can be adjusted by changing the direction of each plate-shaped member. The rectifying plate 13 can make the flow rate of the air sucked from the suction port 11 substantially uniform in the cross section of the flow path. In addition, the structure of the baffle plate 13 is not specifically limited, What is necessary is just the structure which can make the flow volume of the air inhaled from the suction inlet 11 substantially uniform in a flow-path cross section.

  The pre-filter 14 is a filter for collecting relatively large dust and dirt floating in the air, for example, dust of 10 μm or more, and reduces the load on the dust collection of the electric dust collectors 30R and 30L described later. It is comprised so that it can be made to. The prefilter 14 is, for example, a filter formed by combining metal wires, or a filter formed from a nonwoven fabric composed of various fibers such as thermoplastic resin fibers and glass fibers.

  The prefilter 14 is supported by a partition plate 20 that partitions the flow path in the air conditioning chamber 10 into an upstream side and a downstream side. The partition plate 20 is formed with a through hole penetrating from the upstream side toward the downstream side. The positions of the through holes correspond to the electrostatic precipitators 30R and 30L. A recess that is recessed from the upstream side toward the downstream side is formed at the periphery of the through hole. The prefilter 14 is fitted and attached to the recess so as to close the through hole of the partition plate 20.

  Note that the configuration of the prefilter 14 is not particularly limited, and may be any configuration that can collect relatively large dust or dust floating in the air. Moreover, the arrangement | positioning of the pre filter 14 is not specifically limited, What is necessary is just to be arrange | positioned in the upstream of the electrostatic dust collectors 30R and 30L. The air cleaner 1 may be configured not to include the prefilter 14.

  The two electric dust collectors 30 </ b> R and 30 </ b> L are disposed adjacent to the rear, which is the downstream side of the partition plate 20. The two electric dust collectors 30R and 30L are arranged adjacent to each other in the left-right direction so as to close the flow path. The electrostatic precipitator 30R is located on the right side, and the electrostatic precipitator 30L is located on the left side. That is, the two electrostatic precipitators 30R and 30L are adjacent to each other in the left-right direction, which is a direction orthogonal to the front-rear direction, which is the air flow direction, and are arranged in rows in the left-right direction. . Here, the two electrostatic precipitators 30R and 30L are disposed adjacent to the rear of the partition plate 20, and the through holes of the partition plate 20 correspond to the two electrostatic precipitators 30R and 30L. Yes. And the two electric dust collectors 30R and 30L are arrange | positioned in the air-conditioning room 10 so that the air which passed the pre filter 14 passes either the electric dust collector 30R or the electric dust collector 30L. Although the detailed configuration will be described later, the electrostatic precipitators 30R and 30L can collect fine particles floating in the air, such as tobacco smoke, pollen, sand dust, dust, welding fume, and various oil mists. .

  The electric dust collectors 30 </ b> R and 30 </ b> L are supported by being suspended from the gantry 60. Although details will be described later, the gantry 60 supports the electrostatic precipitators 30R and 30L so as to be movable in the front-rear direction. 1 to 4, the electrostatic precipitators 30 </ b> R and 30 </ b> L are moved forward (upstream) with respect to the gantry 60 and are adjacent to the partition plate 20. And air cleaner 1 is operated in the state where electric dust collectors 30R and 30L were located in this state.

  The germicidal lamp 15 is located behind the electrostatic precipitators 30R and 30L. The germicidal lamp 15 is provided on the side wall of the air conditioning chamber 10 and protrudes inward. The germicidal lamp 15 is for killing bacteria and viruses floating in the air, such as staphylococci, and is an ultraviolet ray containing light having a wavelength range of 250 to 260 nm having a bactericidal power. It is an ultraviolet irradiation lamp that irradiates. In addition, the structure and arrangement | positioning of the germicidal lamp 15 are not specifically limited, What is necessary is just a structure and arrangement | positioning which can irradiate the ultraviolet-ray and can kill the bacteria and the virus which float in the air. Further, the air cleaner 1 may be configured not to include the germicidal lamp 15.

  The heat exchanger 16 is arranged at a predetermined interval on the downstream side of the electrostatic precipitators 30 </ b> R and 30 </ b> L, and is arranged adjacent to the rear of the gantry 60. The heat exchanger 16 is one of the components of a temperature control device for cooling or heating the air passing through the air conditioning room 10. The temperature control device includes this heat exchanger 16, another heat exchanger (not shown) arranged outside the air conditioning room 10, a pipe (not shown) connecting the heat exchanger 16 and another heat exchanger, A heat medium for flowing heat between the heat exchanger 16 and another heat exchanger and circulating the heat medium between the heat exchanger 16 and another heat exchanger (not shown) It consists of devices. The temperature control device can bring the air to a desired temperature, for example in the range of 18 ° C to 30 ° C. In addition, the structure of a temperature control apparatus is not specifically limited, What is necessary is just a structure which can cool or heat the air which passes the inside of the air-conditioning room 10. FIG. The air cleaner 1 may have a configuration that does not include the temperature control device, that is, the heat exchanger 16.

  The suction fan device 17 includes a centrifugal fan (not shown) having blades that convey air by rotating, a motor 21 that rotates the centrifugal fan, and the like. The suction fan device 17 sucks air to be cleaned into the air conditioning chamber 10 from the suction port 11 communicating with the duct 18, and exhausts the air purified by the prefilter 14 and the electrostatic dust collectors 30 </ b> R and 30 </ b> L to communicate with the duct 19. It is configured so that it can be discharged to the mouth 12. The configuration of the suction fan device 17 is not particularly limited as long as it can suck air from the suction port 11 into the air conditioning chamber 10 and discharge it to the exhaust port 12.

  The air conditioning room 10 includes a door 22 on one side wall for an operator to enter and exit the inside. The door 22 is provided between the electrostatic precipitators 30 </ b> R and 30 </ b> L and the heat exchanger 16 in the front-rear direction, which is the air flow direction, and at a position corresponding to the rear portion of the gantry 60. The door 22 is configured so that an operator can enter and leave the area of the rear portion of the gantry 60, which is a space between the electrostatic precipitators 30R and 30L and the heat exchanger 16.

  The air conditioning room 10 includes an operation unit 23. The operation unit 23 is provided on the outer side of the side wall. The operation unit 23 is provided in the vicinity of the door 22 and at a position corresponding to the electrostatic precipitators 30R and 30L. The operation unit 23 is for operating various devices of the air purifier 1. The operator can operate the electric dust collectors 30R and 30L, the germicidal lamp 15, the temperature control device including the heat exchanger 16, the suction fan device 17 and the like from the outside of the air conditioning chamber 10 by the operation unit 23. .

  The air conditioning room 10 includes a control unit 24. The control part 24 is arrange | positioned in the air-conditioning room 10, and is provided in the inner side of the side wall. The control unit 24 is provided in the vicinity of the door 22 and at a position corresponding to the operation unit 23. Operations of various devices included in the air cleaner 1, the electric dust collectors 30 </ b> R and 30 </ b> L, the germicidal lamp 15, the heat exchanger 16, and the suction fan device 17 are controlled by the control unit 24. The controller 24 controls the operation of the air purifier 1 by reading various input values, input signals from the operation unit 23, input signals such as detection values by various sensors, and outputting control signals. Yes, it includes a processing device that performs arithmetic processing and control processing, a main storage device that stores information, and the like. The control unit 24 is, for example, a microcomputer including a CPU (Central Processing Unit) as a processing device, a ROM (Read Only Memory) as a main storage device, a RAM (Random Access Memory), and the like. The main storage device stores a control program for executing operations according to the present embodiment, various types of information, and the like. These various programs and information may be stored in a storage device provided separately from the control unit 24 and read by the control unit 24.

  Next, the electric dust collectors 30R and 30L and the gantry 60 that supports the electric dust collectors 30R and 30L, which are the main parts of the air cleaner 1 of the present embodiment, will be described in detail. FIG. 5 is a schematic perspective view showing an example of a state in which the electric dust collectors 30R and 30L are supported by the gantry 60, and FIG. 6 is a schematic perspective view showing the gantry 60. As shown in FIG. Here, FIGS. 5 and 6 are schematic perspective views as seen from the rear side, which is the upper side and the downstream side of the gantry 60.

  First, the gantry 60 that supports the two electrostatic precipitators 30R and 30L that are adjacent to each other in the left-right direction will be described. As shown in FIG. 6, the gantry 60 is a frame structure composed of a plurality of steel materials, and is formed by joining the steel materials with bolts (not shown). The steel material is a square cylindrical pipe or a plate-like plate that extends linearly. In addition, each steel material may be couple | bonded by welding.

  The gantry 60 includes nine column frames 61 extending in the vertical direction, three rail frames 62 extending in the front-rear direction, a plurality of connecting frames 63, a plurality of reinforcing frames 64, a plurality of trays 65, a plurality of adjuster bolts 66, and the like. Prepare. The appearance shape of the gantry 60 is a rectangular parallelepiped extending in the left-right direction in plan view.

  The nine support frames 61 are arranged on a 3 × 3 rectangular matrix composed of three columns in the left-right direction and three rows in the front-rear direction in plan view. The upper ends of the support frames 61a, 61b, 61c located in the right row are connected by a rail frame 62a extending in the front-rear direction. The upper ends of the column frames 61d, 61e, 61f located in the center row are connected by a rail frame 62b extending in the front-rear direction. The upper ends of the support frames 61g, 61h, 61i located in the left row are connected by a rail frame 62c extending in the front-rear direction.

  The rail frame 62a has a plate-like rail 67a extending in the front-rear direction in parallel with the rail frame 62a on the left side which is the inward side. The rail frame 62b has a plate-like rail 67b extending in the front-rear direction parallel to the rail frame 62b on the right side, and a plate-like rail 67c extending in the front-rear direction parallel to the rail frame 62b on the left side. The rail frame 62c has a plate-like rail 67d extending in the front-rear direction in parallel with the rail frame 62c on the right side which is the inward side. Plate-shaped stop plates 68a, 68b, 68c, and 68d are vertically suspended from the rear portions of the rails 67a, 67b, 67c, and 67d, respectively, with a width in the vertical direction. In addition, the connection mechanism 32 with which each of the electric dust collectors 30R and 30L described later is provided is attached to the rail 67.

  The three column frames 61a, 61d, 61g located in the front row are connected at the upper ends by the connecting frames 63a, 63b, and are connected at the lower ends by the connecting frames 63c, 63d. The three column frames 61c, 61f, 61i located in the rear row are connected at the upper ends by the connecting frames 63e, 63f, and the lower ends are connected by the connecting frames 63g, 63h. Further, the support frame 61b and the support frame 61c located in the right row are connected at the lower ends by a connection frame 63i.

  Three reinforcing frames 64 are provided between the support frame 61a and the support frame 61b, between the support frame 61d and the support frame 61e, and between the support frame 61g and the support frame 61h, respectively. A plate-like reinforcing plate (not shown) is provided between the members at the connecting portion of each member (the support frame 61, the rail frame 62, and the connection frame 63). The strength of the connecting portion of each member is improved by this reinforcing plate.

  Further, a tray 65a extending linearly from the connection frame 63a to the connection frame 63e is provided between the rail frame 62a and the rail frame 62b. Between the rail frame 62b and the rail frame 62c, a tray 65b extending linearly from the connection frame 63b to the connection frame 63f is provided. Further, a tray 65c extending in the left-right direction along the connecting frame 63e and the connecting frame 63f and connected to the rear portion of the tray 65a and the rear portion of the tray 65b is provided. These trays 65a, 65b, 65c have a plurality of through holes penetrating in the vertical direction for weight reduction. Note that wirings connected to the electrostatic precipitators 30R, 30L are placed on these trays 65a, 65b, 65c. That is, the wiring connected to the electrostatic precipitators 30 </ b> R and 30 </ b> L is routed above the gantry 60.

  Each column frame 61 has an adjuster bolt 66 attached to the lower end thereof. An adjuster bolt 66 provided at the lower end of each column frame 61 is grounded to the floor F of the air conditioning chamber 10. Further, the gantry 60 further includes a plurality of adjuster bolts 66 (not shown) that protrude upward, rearward, and rightward. The adjuster bolt 66 protruding upward is for making contact with the roof of the air conditioning chamber 10 (see FIG. 3). The adjuster bolt 66 protruding rearward is for contacting the heat exchanger 16 (see FIG. 4). The adjuster bolt 66 that protrudes to the right is for contacting the right side wall of the air conditioning chamber 10 (see FIG. 4). Therefore, the gantry 60 can be adjusted in the vertical direction by the adjuster bolt 66 provided at the lower end of each column frame 61. In addition, the gantry 60 can be stably placed in the air conditioning chamber 10 by the plurality of adjuster bolts 66 projecting upward, rearward, and rightward.

  The support frame 61b located in the center row has a locking hook 69a on the rear side substantially at the center in the vertical direction. The column frame 61e located in the center row has two locking hooks 69b and 69c on the rear side substantially at the center in the vertical direction. The column frame 61h located in the center row has a hook 69d on the rear side, which is substantially the center in the vertical direction. The locking hook 69 locks the lock arm 35 provided in the electric dust collectors 30R and 30L described later.

  Here, the gantry 60 is divided into two regions, a right gantry region 60R and a left gantry region 60L, with three column frames 61d, 61e, 61f positioned in the center row as boundaries. The right frame region 60R is a region surrounded by the column frames 61a, 61b, 61c located in the right row and the column frames 61d, 61e, 61f located in the inner row, that is, in the center row. On the other hand, the left gantry region 60L is a region surrounded by the support frames 61d, 61e, 61f located in the center row and the support frames 61g, 61h, 61i located in the left row.

  Further, the right gantry region 60R and the left gantry region 60L are further divided before and after the front regions 60RF and 60LF and the rear regions 60RR and 60LR, respectively, by 61b, 61e, and 61h located in the center row. That is, the front region 60RF of the right gantry region 60R is a region surrounded by the support frames 61a, 61b, 61d, 61e. The rear region 60RR of the right gantry region 60R is a region surrounded by the support frames 61b, 61c, 61e, 61f. The front area 60LF of the left gantry area 60L is an area surrounded by the support frames 61d, 61e, 61g, 61h. The rear region 60LR of the left gantry region 60L is a region surrounded by the support frames 61e, 61f, 61h, 61i.

  The right gantry region 60R corresponds to the electrostatic precipitator 30R located on the right side of the two electrostatic precipitators 30R and 30L, and the left gantry region 60L corresponds to the electrostatic precipitator 30L located on the left side. It corresponds. The width in the left-right direction of the right gantry region 60R is substantially the same as the width in the left-right direction of the electrostatic precipitator 30R. The width in the front-rear direction of the front region 60RF of the right gantry region 60R is substantially the same as the width in the front-rear direction of the electrostatic precipitator 30R. The width in the front-rear direction of the rear region 60RR of the right gantry region 60R is larger than the width in the front-rear direction of the electrostatic precipitator 30R. The electrostatic precipitator 30R is disposed in the front region 60RF of the right gantry region 60R.

  On the other hand, the left-right width of the left gantry region 60L is substantially the same as the left-right width of the electrostatic precipitator 30L. The front-rear direction width of the front region 60LF of the left gantry region 60L is substantially the same as the front-rear direction width of the electrostatic precipitator 30L. The width in the front-rear direction of the rear region 60LR of the left gantry region 60L is larger than the width in the front-rear direction of the electrostatic precipitator 30L. The electrostatic precipitator 30L is disposed in the front region 60LF of the left gantry region 60L.

  Next, two electrostatic precipitators 30R and 30L that form a row adjacent to each other in the left-right direction will be described. Since the left and right electrostatic precipitators 30R and 30L have the same configuration, the following description will be made by taking up the electrostatic precipitator 30R that is located on the right side and is disposed in the right gantry region 60R of the gantry 60. With respect to the electrostatic precipitator 30L located on the left side and disposed in the left gantry region 60L of the gantry 60, description of the detailed configuration is omitted, and a configuration different from the right electrostatic precipitator 30R is described. . Further, as described above, as necessary, the electrostatic precipitator 30 located on the right side is appropriately denoted by the symbol R, and the electrostatic precipitator 30 located on the left side is appropriately denoted by the symbol L. 7 is a schematic perspective view showing the electric dust collector 30R located on the right side, FIG. 8 is a schematic rear view of the electric dust collector 30R of FIG. 7, and FIG. 9 is an electric diagram of FIG. 10 is a schematic side view of the dust collector 30R, FIG. 10 is a schematic side view showing the electric dust collector 30R with the opening / closing lid 39 removed, and FIG. 11 is a partially enlarged view of FIG. is there. Here, FIG. 7 is a schematic perspective view as seen from above and behind the electrostatic precipitator 30R located on the right side, and FIG. 9 is a schematic view seen from the left side where the electrostatic precipitator 30L is located adjacently. FIG. 11 is an enlarged view showing the upper storage portion 41 and the second wiring portion 44 in an enlarged manner.

  As shown in FIGS. 7 to 11, the electrostatic precipitator 30 includes a main body case 31, a pair of left and right coupling mechanisms 32 and 32 provided on the upper portion of the main body case 31, and four transport rollers provided on the lower portion of the main body case 31. 34, 34, 34, 34, a pair of left and right lock arms 35, 35 provided at the rear part of the main body case 31, ten electric dust collecting units 70,... Are composed of two deodorizing filters 36 and 36, two ozone filters 37 and 37 accommodated in the body case 31, and the like.

  The external shape of the main body case 31 is a rectangular parallelepiped extending in the vertical direction. The main body case 31 has a box structure having an opening on the left side, and is formed of a steel plate or the like. The main body case 31 is detachably provided with an open / close lid 39 that closes the opening. The open / close lid 39 is attached to the main body case 31 with a plurality of bolts. The opening / closing lid 39 may be configured to be able to close and open the opening, and may be configured to be attached to the main body case 31 via a hinge structure, for example.

  Here, the width in the left-right direction of the main body case 31 is substantially the same as the width in the left-right direction of the right gantry region 60R described above. The width in the front-rear direction of the main body case 31 is substantially the same as the width in the front-rear direction of the front region 60RF of the right gantry region 60R.

  The main body case 31 includes transport rollers 34, 34, 34, and 34 on the front, rear, left, and right, respectively. The conveyance roller 34 is for conveying the electrostatic precipitator 30, and the configuration thereof is not particularly limited. The electric dust collector 30 may be configured not to include the transport roller 34.

  In the main body case 31, there are four partition plates 40, 40, 40, 40 extending in the horizontal direction, and an upper storage part 41, a lower storage part 42, a first wiring part 43 positioned above the upper storage part 41, and It is divided into four regions of the second wiring portion 44 located between the upper storage portion 41 and the lower storage portion 42.

  The upper storage part 41 has openings at the front part and the rear part. The front and rear openings are covered with air-permeable protective members 45, 45. Inside the upper storage portion 41 is a flow path through which air passes, the front side being the upstream side and the rear side being the downstream side. Here, the protective member 45 is for allowing air to pass through the upper storage portion 41 and preventing the upper storage portion 41 from being exposed. The protection member 45 is, for example, a punching metal that is a metal mesh or a perforated plate. The configuration of the protection member 45 is not particularly limited, and air can flow in the upper storage part 41 from the front part toward the rear part, and the inside of the upper storage part 41 is exposed. Any configuration that can be prevented is acceptable. For example, the main body case 31 and the protection member 45 may be formed integrally. That is, a structure in which a large number of air holes are formed in the front part and the rear part corresponding to the upper storage part 41 of the main body case 31 may be used.

  In the upper storage part 41, five electric dust collection units 70,..., 70, one deodorizing filter 36, and one ozone filter 37 are accommodated so as to cross the air flow path. The five electric dust collection units 70,..., 70 are arranged adjacent to each other in the left-right direction. The deodorizing filter 36 is disposed to extend in the left-right direction behind the five electric dust collection units 70,..., 70 arranged in a row. The ozone filter 37 is arranged extending in the left-right direction behind the deodorizing filter 36 on the downstream side. And the air which passes through the inside of the upper storage part 41 passes through one of the electric dust collection units 70, the deodorizing filter 36, and the ozone filter 37 sequentially from the front part toward the rear part.

  The electric dust collection unit 70 is a device that collects fine particles floating in the air by the force of static electricity. Although the detailed configuration will be described later, the external shape of the electric dust collection unit 70 is a rectangular parallelepiped extending in the vertical direction as shown in FIG. Here, FIG. 12 is a schematic perspective view showing an example of the electric dust collection unit 70, and is a schematic perspective view seen from below and behind the electric dust collection unit 70. Moreover, the arrow in FIG. 12 shows the flow direction of air.

  The electric dust collection unit 70 includes a discharge unit 71 (not shown) located at the front part on the upstream side, a collection part 72 located at the rear side on the downstream side, and the discharge part 71 and the collection part 72 inside. It is comprised from the frame 73 etc. to accommodate. The discharge unit 71 has a function of generating corona discharge and charging suspended particles in the air. The collection unit 72 is disposed behind the discharge unit 71 on the downstream side, and has a function of electrically collecting floating particulates charged by the discharge unit 71. The frame 73 has a rectangular tube shape with a cylinder axis extending in the front-rear direction, and the discharge unit 71 and the collection unit 72 are accommodated therein. Flange portions 74, 74, 74, 74 extending in the vertical direction along the front end and the rear end are formed on the left and right sides of the frame 73. The frame 73 is provided with elastic band-shaped grips 75 and 75 on both left and right sides. In addition, the frame body 73 includes a pair of power supply electrodes 76 and 76 that are electrically connected to the discharge unit 71 and the collection unit 72 at the lower part. Electric power is supplied from the pair of power supply electrodes 76, 76 to the electric dust collection unit 70.

  The five electric dust collection units 70,..., 70 having such a configuration include power supply electrodes 76, 76 located below, and two flange portions 74 on the side of the adjacent electric dust collection unit 70. With the 74 in contact with each other, they are housed in the upper housing part 41 in rows in the left-right direction. Five electric dust collection units 70,..., 70 arranged in a row are detachably supported by a pair of upper and lower unit support portions 46, 46 provided facing the upper and lower portions of the upper storage portion 41. Has been. The unit support portion 46 is formed by bending both short ends of an elongated flat plate parallel to the longitudinal direction (see FIG. 11). The vertical cross-sectional shape of the unit support portion 46 is substantially U-shaped. The unit support portion 46 extends from the right end portion of the upper storage portion 41 to the left end portion. The pair of upper and lower unit support portions 46, 46 are opposed to each other with their both rising ends facing inward of the upper storage portion 41. The electric dust collection unit 70 is housed in the upper housing part 41 so that the upper part and the lower part are sandwiched between the rising ends of the pair of upper and lower unit support parts 46 and 46, respectively.

  The five electric dust collection units 70,..., 70 are directed toward the opening along the pair of upper and lower unit support portions 46, 46 in a state where the opening / closing lid 39 is removed and the opening is opened. By sequentially pulling out, the electrostatic precipitator 30 can be removed. At this time, the operator can pull out the electric dust collection unit 70 by holding the belt-like grip 75 provided on the side of the electric dust collection unit 70, and can easily remove the electric dust collection unit 70. . On the other hand, the five electrostatic dust collecting units 70,..., 70 are attached to the electrostatic dust collecting device 30 by sequentially pushing in from the opening side to the right side along the pair of upper and lower unit support portions 46, 46. Can do. Therefore, the five electric dust collection units 70,..., 70 can be easily attached. Further, the five electric dust collection units 70,..., 70 can be attached and detached from one opening, which is convenient.

  The deodorizing filter 36 is detachably supported by a pair of upper and lower first filter support portions 47, 47 provided facing the upper and lower portions of the upper storage portion 41. The first filter support portion 47 has the same form as the unit support portion 46, and is formed by bending both short ends of an elongated flat plate in parallel to the longitudinal direction. The vertical cross-sectional shape of the first filter support portion 47 is substantially U-shaped. The first filter support portion 47 extends from the right end portion of the upper storage portion 41 to the left end portion. The pair of upper and lower first filter support portions 47, 47 are opposed to each other with both rising end portions facing inward of the upper storage portion 41. And the deodorizing filter 36 is accommodated in the upper accommodating part 41 so that the upper part and the lower part may be clamped by the upright both ends of a pair of upper and lower first filter support parts 47, 47, respectively.

  The deodorizing filter 36 is electrically drawn by being pulled out toward the opening side along the pair of upper and lower first filter support portions 47, 47 in a state where the opening / closing lid 39 is removed and the opening is opened. It can be removed from the dust collector 30. On the other hand, the deodorizing filter 36 can be attached to the electric dust collector 30 by being pushed in from the opening side toward the right side along the pair of upper and lower first filter support portions 47, 47. Therefore, the deodorizing filter 36 can be easily attached and detached, and is easy to use.

  The deodorization filter 36 is a filter for adsorbing or decomposing and removing odor component substances floating in the air. The deodorizing filter 36 is, for example, a filter that adsorbs an odor component substance using a porous material such as activated carbon or zeolite, or a filter that decomposes the odor component substance using a photocatalyst such as titanium oxide. In addition, the structure of the deodorizing filter 36 is not specifically limited, What is necessary is just a structure which can remove an odorous substance in the air.

  The ozone filter 37 is detachably supported by a pair of upper and lower second filter support portions 48, 48 provided facing the upper and lower portions of the upper storage portion 41. The second filter support portion 48 has the same form as the unit support portion 46 and the first filter support portion 47, and is formed by bending both short ends of an elongated flat plate parallel to the longitudinal direction. The vertical cross-sectional shape of the second filter support portion 48 is substantially U-shaped. The second filter support portion 48 extends from the right end portion of the upper storage portion 41 to the left end portion. The pair of upper and lower second filter support portions 48, 48 are opposed to each other with both rising end portions facing inward of the upper storage portion 41. The ozone filter 37 is accommodated in the upper accommodating portion 41 so that the upper portion and the lower portion are sandwiched between the rising end portions of the pair of upper and lower second filter support portions 48 and 48, respectively.

  The ozone filter 37 is electrically drawn by being pulled out toward the opening along the pair of upper and lower second filter support portions 48 and 48 in a state where the opening / closing lid 39 is removed and the opening is opened. It can be removed from the dust collector 30. On the other hand, the ozone filter 37 can be attached to the electric dust collector 30 by being pushed in from the opening side toward the right side along the pair of upper and lower second filter support portions 48, 48. Therefore, the ozone filter 37 is easy to attach and detach, and is easy to use.

  The ozone filter 37 is a filter for removing ozone floating in the air. As will be described in detail later, the electrostatic dust collection unit 70 located on the upstream side of the ozone filter 37 generates corona discharge to charge floating particles. Therefore, ozone accompanying this discharge is generated from the electric dust collection unit 70. The ozone filter 37 removes ozone generated from the electric dust collection unit 70. The ozone filter 37 is a filter that decomposes and removes ozone using an ozone decomposition catalyst such as manganese oxide. In addition, the structure of the ozone filter 37 is not specifically limited, What is necessary is just a structure which can remove ozone.

  The lower storage part 42 has the same configuration as that of the upper storage part 41 described above, and has openings at the front part and the rear part. The front and rear openings are covered with air-permeable protective members 45 (see FIG. 9 and the like). Inside the lower storage portion 42 is a flow path through which air passes, the front side being the upstream side, and the rear side being the downstream side.

  In the lower storage portion 42, similarly to the upper storage portion 41, five electric dust collection units 70,..., 70, one deodorization filter 36, and one ozone filter 37 are arranged so as to cross the air flow path. Is accommodated (see FIGS. 8 to 10). Then, the air passing through the lower storage portion 42 sequentially passes through one of the electric dust collection units 70, the deodorizing filter 36, and the ozone filter 37 from the front portion toward the rear portion.

  The five electric dust collection units 70,..., 70 accommodated in the lower storage portion 42 are a pair of upper and lower unit support portions provided opposite to the upper and lower portions of the lower storage portion 42, similar to the upper storage portion 41. 46 and 46 are detachably supported. The five electric dust collection units 70,..., 70 housed in the lower housing portion 42 are housed in an upside down state, that is, in a state in which the respective power feeding electrodes 76, 76 are located above.

  The deodorizing filter 36 housed in the lower housing part 42 is detachable by a pair of upper and lower first filter support parts 47, 47 provided facing the upper and lower parts of the lower housing part 41 in the same manner as the upper housing part 41. It is supported by.

  The ozone filter 37 housed in the lower housing part 42 is detachable by a pair of upper and lower second filter support parts 48, 48 provided facing the upper and lower parts of the lower housing part 42, similar to the upper housing part 41. It is supported by.

  In the first wiring part 43 and the second wiring part 44, wirings connected to the electric dust collection units 70 are stored. In the second wiring portion 44, five electric dust collection units 70,..., 70 accommodated in the upper storage portion 41 and five electric dust collection units 70 accommodated in the lower storage portion 42,. A plurality of connection terminals 49 respectively corresponding to 70 are provided (see FIGS. 10 and 11). One end of the connection terminal 49 protrudes from the surface of the central portion of the unit support portion 46 through a through hole (not shown) that penetrates the partition plate 40 and the central portion of the unit support portion 46. The other end of the connection terminal 49 is connected to a wiring (not shown) connected to a power supply (not shown). Each connection terminal 49 is configured to be connected to each power supply electrode 76 of the corresponding electric dust collection unit 70 when the electric dust collection units 70 are accommodated in a row. The configuration of the connection terminal 49 is not particularly limited. For example, a configuration in which a thin plate spring made of metal is in contact with the power supply electrode 76 may be used.

  Further, in the second wiring portion 44, a voltage detection device 50 that detects a voltage applied to each electric dust collection unit 70 is provided. The voltage detection device 50 is electrically connected to the control unit 24 through a wiring (not shown). In addition, the structure of the voltage detection apparatus 50 is not specifically limited, Various voltmeters can be used.

  Wiring (not shown) connected to each connection terminal 49 and the voltage detection device 50 is a cable provided from the second wiring portion 44 to the upper portion of the main body case 31 via the upper storage portion 41 and the first wiring portion 44. It is wired so as to extend to a cable bear (registered trademark) CB as a protection guide device. Further, the electric wires are routed so as to pass through the cable bear CB and to be connected to a power source (not shown), the control unit 24, and the like via a tray 65 provided at the upper portion of the gantry 60. Here, the partition plate 40 between the second wiring portion 44 and the upper storage portion 41, the partition plate 40 between the upper storage portion 41 and the first wiring portion 43, and the upper portion of the main body case 31 are wired. A through hole (not shown) through which is inserted is provided. The wiring is routed along the right side of the main body case 31 in the upper storage portion 41. In addition, the structure of the arrangement | positioning of the various wiring extended to the electrostatic precipitator 30 is not specifically limited.

  Next, the pair of left and right coupling mechanisms 32, 32 provided on the upper part of the main body case 31 will be described. Since the left and right coupling mechanisms 32 and 32 have a symmetrical shape, the left coupling mechanism 32 will be described below. Description of the configuration of the right coupling mechanism 32 is omitted.

  The coupling mechanism 32 includes a carrier 51 having a side portion 54 and a bottom portion 55, four rollers 52, 52, 52, 52 attached to the side portion 54 of the carrier 51, and a carrier protruding from the upper portion of the main body case 31. It consists of a stay 53 and the like. The carrier 51 is formed such that a flat plate extending in the front-rear direction is bent to have a substantially L-shaped cross section. The carrier 51 has a side portion 54 rising in the vertical direction and a bottom portion 55 extending in the horizontal direction. Four rollers 52,..., 52 are attached to the side portion 54 of the carrier 51 so as to be rotatable about the horizontal direction. The four rollers 52,..., 52 are arranged above and below the front end portion of the side portion 54 and above and below the rear end portion. Grooves that are recessed in the radial direction are formed on the outer periphery of each of the rollers 52.

  The carrier 51 has a wide front end portion of the bottom portion 55. The wide front end portion of the bottom portion 55 is fixed to the upper portion of the carrier stay 53 protruding from the upper portion of the main body case 31. Further, the carrier 51 has three reinforcing plates 56, 56, 56 that extend in the vertical direction and are connected to the side portion 54 and the bottom portion 55 in a brace shape, and the strength thereof is improved. Note that a first stopper 57 that protrudes forward is provided on the reinforcing plate 56 that is positioned forward. A second stopper 58 protruding rearward is attached to the reinforcing plate 56 located rearward. The first stopper 57 and the second stopper 58 are made of, for example, rubber and have elasticity. Here, the front end portion of the carrier 51 is located behind the front portion of the main body case 31, and the rear end portion of the carrier 51 is located behind the rear portion of the main body case 31.

  As shown in FIGS. 13 and 14, the electrostatic precipitator 30 </ b> R is attached to the gantry 60 via a pair of left and right coupling mechanisms 32 and 32. Here, FIG. 13 is a schematic rear view showing the coupling mechanism 32 of the electrostatic precipitator 30R, and FIG. 14 is a schematic cross-sectional view showing a cross section taken along line XIV-XIV in FIG. In FIG. 13 and FIG. 14, the description of a part of the configuration is omitted.

  The right coupling mechanism 32 is attached to the rail 67 a of the gantry 60, and the left coupling mechanism 32 is attached to the rail 67 b of the gantry 60. The coupling mechanism 32 is attached so as to sandwich the rail 67a from above and below by two rollers 52, 52 positioned above and two rollers 52, 52 positioned below. The upper end and the lower end of the rail 67a are fitted in grooves formed on the outer circumferences of the rollers 52,.

  The electrostatic precipitator 30 </ b> R is suspended and supported by the gantry 60 via a pair of left and right coupling mechanisms 32 and 32. Furthermore, the electrostatic precipitator 30 </ b> R is movable in the front-rear direction along the rail 67 with respect to the gantry 60. Note that the range of movement of the electrostatic precipitator 30R in the front-rear direction is regulated within a predetermined range.

  The state where the electrostatic precipitator 30 </ b> R is located in the front region 60 </ b> RF of the right gantry region 60 </ b> R of the gantry 60 is a state where the electrostatic precipitator 30 </ b> R has moved to the front most with respect to the gantry 60. In this state, the front part of the electrostatic precipitator 30 </ b> R is located at the front end of the gantry 60. The first stopper 57 included in the electrostatic precipitator 30 </ b> R is in contact with the connection frame 63 a of the gantry 60. That is, the first stopper 57 restricts the forward movement range of the electrostatic precipitator 30R with respect to the gantry 60.

  Here, in the state where the electrostatic precipitator 30R has moved most forward, the gantry 60 is positioned so that the rear portion of the electrostatic precipitator 30R is located between the column frames 61b and 61e located in the central row of the gantry 60. It is configured. The electrostatic precipitator 30R can be held in a state of being positioned in the front region 60RF of the right gantry region 60R by the pair of left and right lock arms 35, 35 provided at the rear portion of the main body case 31. Here, the lock arms 35, 35 are provided at the left and right end portions of the rear portion of the main body case 31 and at positions corresponding to the second wiring portion 44 (see FIGS. 8 and 10). The lock arm 35 is a substantially L-shaped flat plate member, and is attached to the main body case 31 so as to be rotatable in the vertical direction about the bent portion. The lock arm 35 is configured such that one side is a locking part and the other is a gripping part with a bent part as a boundary. By locking the locking portions of the pair of left and right lock arms 35 and 35 configured in this way to locking hooks 69a and 69b provided on the support frame 61b and 61e of the gantry 60, respectively, an electric dust collector The rearward movement of 30R is restricted. Then, the electrostatic precipitator 30R can be held in a state of being located in the front region 60RF of the right frame region 60R.

  On the other hand, as shown in FIG. 15, the electrostatic precipitator 30 </ b> R can be moved backward to a predetermined position in the rear region 60 </ b> RR of the right frame region 60 </ b> R of the frame 60. Here, FIG. 15 is a schematic plan view for explaining the movement of the electrostatic precipitator 30R. When the electrostatic precipitator 30 </ b> R moves to the rearmost position with respect to the gantry 60, the front part of the electrostatic precipitator 30 </ b> R is located behind the column frames 61 b and 61 e located in the central row of the gantry 60. The rear part of the electrostatic precipitator 30 </ b> R is located a predetermined distance away from the rear end of the gantry 60. In this state, the second stoppers 58 and 58 provided in the electric dust collector 30R are in contact with stop plates 68a and 68b provided on the rails 67a and 67b. That is, the second stopper 58 restricts the backward movement range of the electrostatic precipitator 30R with respect to the gantry 60.

  Next, the electrostatic precipitator 30L that is located on the left side of the two electrostatic precipitators 30R and 30L that are adjacent to each other in the left-right direction and that is disposed in the left gantry region 60L of the gantry 60 will be described. FIG. 16 is a schematic rear view of the electrostatic precipitator 30L located on the left side. As shown in FIG. 16, the electrostatic precipitator 30L located on the left side has a configuration other than the width in the left and right direction, the number of electrostatic precipitator units 70 provided, and the position of the open / close lid 39. The configuration is the same as that of the dust collector 30R. The description of the same configuration of the electric dust collector 30L as that of the electric dust collector 30R is omitted.

  Unlike the electrostatic precipitator 30R, the electrostatic precipitator 30L includes four electrostatic precipitating units 70 arranged in rows adjacent to the upper storage portion 41 and the lower storage portion 42 (not shown), respectively. , 70. And in the electrostatic precipitator 30L, the width of the main body case 31 in the left-right direction is smaller than the width of the main body case 31 of the electrostatic precipitator 30R according to the four electrostatic precipitator units 70,. The main body case 31 of the electrostatic precipitator 30L includes an open / close lid 39 that is detachable on the right side. That is, the main body case 31 of the electrostatic precipitator 30 </ b> L has an opening on the right side, and this opening is closed by the opening / closing lid 39. When the electric dust collection unit 70, the deodorizing filter 36, and the ozone filter 37 stored in the upper storage portion 41 and the lower storage portion 42 are attached / detached, the opening / closing lid 39 is removed and the right side of the main body case 31 is removed. Remove from.

  Like the electrostatic dust collector 30R, such an electrostatic dust collector 30L is suspended and supported by the gantry 60 via a pair of left and right coupling mechanisms 32 and 32, and is movable in the front-rear direction along the rails 67c and 67d. It is. The electrostatic precipitator 30L is disposed in the left gantry region 60L of the gantry 60. The electric dust collector 30L is located adjacent to the left side of the electric dust collector 30R. Therefore, the electrostatic precipitator 30R includes the open / close lid 39 on the left side which is the side of the adjacent electrostatic precipitator 30L, and the electrostatic precipitator 30L is on the right side which is the side of the adjacent electrostatic precipitator 30R. The configuration includes an open / close lid 39.

  Next, the configuration of the electrostatic dust collection unit 70 provided in the electrostatic dust collector 30 shown in FIG. 12 will be described. 17 is a schematic horizontal sectional view showing the configuration of the electric dust collection unit 70 of FIG. 12, FIG. 18 is a schematic front view showing the electric dust collection unit 70 of FIG. 12, and FIG. 12 is a schematic perspective view showing the internal structure of the collection part 72 of the electric dust collection unit 70 of FIG. 12, and FIG. 20 is a schematic horizontal view for explaining the collection function of the electric dust collection unit 70 of FIG. It is sectional drawing. Here, FIG. 19 is a schematic side view of the collecting portion 72 as viewed from below and from the rear side, and the arrows in FIGS. 17 and 20 indicate the direction of air flow.

  As described above, the electrostatic dust collection unit 70 is configured by the discharge unit 71, the collection unit 72, the frame body 73, and the like, and is a device that collects fine particles floating in the air with the force of static electricity. The electrostatic dust collection unit 70 generates corona discharge by the discharge unit 71 to charge the airborne fine particles in the air, and is charged by the collection unit 72 disposed downstream of the discharge unit 71. Electrically collect airborne particles.

  Then, as shown in FIGS. 17 and 18, the discharge unit 71 has a matrix composed of a plurality of columns extending in the vertical direction and a plurality of rows extending in the left-right direction with the tip of the needle directed rearward on the downstream side. , 77, a plurality of needle electrodes 77,... 77, a grid-like support electrode 78 that supports and fixes the needle electrodes 77, and each needle electrode 77 on the downstream side of the support electrode 78. It is arranged in the form of a one-to-one counter electrode and is composed of a plurality of rectangular cylindrical counter electrodes 79,..., 79, etc. that extend in the front-rear direction with both ends open to form an air passage. .

  Each needle electrode 77 is made of stainless steel whose surface is nickel-plated as an anti-oxidation treatment, and has a pointed needle tip portion 80, a cylindrical body portion 81 that supports the needle tip portion 80, and is thinner than the body portion 81. It consists of a columnar root portion 82. The support electrode 78 is a flat grid-like metal member, and an attachment hole drilled on each grid point is formed. The needle electrode 77 is supported and fixed to the support electrode 78 using a caulking technique after the root portion 82 is inserted into the mounting hole of the support electrode 78. Connecting metal rods 83, 83, 83 extending in the left-right direction are respectively attached between the upper and lower ends of the support electrode 78 and both sides at the center in the vertical direction. Connected electrically and electrically. A voltage is applied to the needle electrodes 77,..., 77 via these connecting metal bars 83, 83, 83 and the support electrode 78. That is, the needle electrodes 77,..., 77 are maintained at a predetermined positive potential via the connecting metal rods 83, 83, 83. On the other hand, the counter electrodes 79,..., 79 are maintained at a predetermined negative potential or ground potential in the same manner as the collecting electrode plate 85 described later. A potential difference that causes corona discharge is formed between the needle electrode 77 and the counter electrode 79 forming a one-to-one counter electrode.

  Fixing members 84 such as nuts with insulating coatings are attached to both ends of the connecting metal rods 83, 83, 83, respectively. The connecting metal rod 83 is fixed to the left and right side portions of the frame 73 by the fixture 84. The counter electrode 79 is formed as a square cylindrical cell extending in the front-rear direction in which a large number of electrode flat plates having a width of approximately 10 to 20 mm are assembled vertically and horizontally to form square openings at both ends. The depth of the rectangular cylindrical cell, that is, the length in the front-rear direction is the width of the electrode flat plate forming the counter electrode 79, and is approximately 10 to 20 mm. Each counter electrode 79 is arranged in a form of one-to-one counter electrode with each needle electrode 77, and forms a discharge space for each needle electrode 77. In the counter electrode 79, the needle tip portion 80 of the needle electrode 77 forming a counter electrode is housed. The shape of the counter electrode 79 as a whole is a lattice shape. The length of one side of the square opening of the counter electrode 79 is preferably 10 to 30 mm, more preferably 15 to 25 mm, from the viewpoint of dust collection efficiency.

  As shown in FIGS. 17 and 19, the collecting portion 72 includes a plurality of collecting electrode plates 85,..., 85 made of a metal flat plate, and a plurality of deflection electrode plates 86,. Composed. The plurality of collecting electrode plates 85,..., 85 are divided into a plurality of partitions that divide a space continuous with the discharge space formed for each needle electrode 77, that is, a space on the downstream side of the discharge portion 71. The collection electrode plate 85 and the deflection electrode plate 86 are alternately arranged in a parallel state facing each other and attached to the frame 73. The interval between the collection electrode plate 85 and the deflection electrode plate 86 is narrower than the interval between adjacent needle electrodes 77.

  The plurality of collecting electrode plates 85,..., 85 are parallel to each other at a predetermined interval by the plurality of collecting electrode connecting plates 87, 87, 88 in a posture orthogonal to the collecting electrode plate 85, and are electrically To be connected to More specifically, a plurality of slit-shaped notches 87a formed at predetermined intervals in the collecting electrode connecting plates 87, 87, 88 are formed in the slit-shaped notches 85a formed in each collecting electrode plate 85. By fitting 87a, 88a, the plurality of collecting electrode plates 85,... 85 are made parallel to each other and electrically connected.

  Similar to the collecting electrode plate 85, the plurality of deflection electrode plates 86,..., 86 are parallel to each other at a predetermined interval by a plurality of deflection electrode connection plates 89, 89, 90 in a posture orthogonal to the deflection electrode plate 86. And coupled so as to be electrically connected. A plurality of slit-shaped notches 89a, 89a, 90a formed at predetermined intervals on the deflection electrode connecting plates 89, 89, 90 are fitted into the slit-shaped notches 86a formed on each deflection electrode plate 86. As a result, the plurality of deflection electrode plates 86,... 86 are made parallel to each other and electrically connected.

  The collecting electrode plates 85,..., 85 are kept at a predetermined negative potential or ground potential via the collecting electrode connecting plates 87, 87, 88, and are floated by the needle electrodes 77,. It has the function of attracting and collecting fine particles by electrostatic force. The collecting electrode plates 85,..., 85 are kept at the ground potential by being electrically connected via a collecting electrode connecting portion (not shown) attached to the frame 73. On the other hand, the deflection electrode plates 86,..., 86 are maintained at a predetermined positive potential via the deflection electrode connecting plates 89, 89, 90, and the deflection force directed toward the collection electrode plate 85 by the charged floating fine particles passing therethrough. It has the function to give. Application of a voltage to the deflection electrode plates 86,... 86 is performed via a deflection electrode connection unit (not shown).

  When the electrostatic dust collection unit 70 configured as described above is in operation, the discharge unit 71 has a positive potential between the needle electrode 77 and the counter electrode 79 that form a one-to-one counter electrode, A DC voltage of about 5 kV, for example, is applied from a power source (not shown) in a connection configuration in which the counter electrode 79 side is a negative potential or a ground potential. The application of voltage to the needle electrodes 77,... 77 is performed via the support electrode 78. On the other hand, in the collection part 72, the side of each collection electrode plate 85 becomes a negative potential or a ground potential between each collection electrode plate 85 and each deflection electrode plate 86, and the side of each deflection electrode plate 86 becomes a positive potential. For example, a DC voltage of about 5 kV is applied from the power supply.

  In such a state, in the discharge portion 71, as shown in FIG. 20, a uniform corona discharge is continuously and stably generated around the needle tip portion 80 of each needle electrode 77 to form an ionization space region 91. Is done. When air containing fine particles passes through the ionization space region 91 formed by the corona discharge portion 71, oxygen having low ionization energy is ionized to become positive ions, and adheres to the floating fine particles p in the air, and becomes suspended fine particles p. Is given a positive ion charge. The suspended fine particles p to which electric charge is applied floats in the vicinity of the collecting electrode plate 85 when passing between the collecting electrode plate 85 and the deflection electrode plate 86 in the collecting unit 72 disposed on the downstream side. The fine particles p are adsorbed to the collecting electrode plate 85 having a negative potential or a ground potential. On the other hand, the suspended fine particles p that are separated from the collecting electrode plate 85 receive the Coulomb force as a repulsive force by the positive potential of the deflecting electrode plate 86 and are pushed toward the collecting electrode plate 85, thereby collecting the collecting electrode plate 85. To be adsorbed. In this way, airborne particulates p are collected by the electric dust collection unit 70 and the air is cleaned.

  The above-described air purifier 1 can suck air to be cleaned from the suction port 11 communicating with the duct 18 into the air conditioning chamber 10 and discharge the cleaned air from the exhaust port 12 communicated with the duct 19. (See FIG. 2). More specifically, the air sucked from the suction port 11 is adjusted by the rectifying plate 13 so that the flow rate thereof is substantially uniform in the cross section of the flow path. The air whose flow rate is made uniform in the cross section of the flow path passes through the prefilter 14. At this time, relatively large dust or dirt floating in the air is collected by the pre-filter 14. The air that has passed through the prefilter 14 passes through one of the electrostatic precipitators 30R and 30L. At this time, fine particles floating in the air are collected by the electrostatic precipitators 30R and 30L. The air that has passed through the electrostatic precipitators 30 </ b> R and 30 </ b> L is brought to a desired temperature by a temperature control device including the heat exchanger 16. The air that has been cleaned and brought to a desired temperature is discharged from the exhaust port 12 to the duct 19.

  Here, the air cleaner 1 is configured to include a germicidal lamp 15 and a heat exchanger 16 in addition to the pre-filter 14 and the electric dust collectors 30R and 30L that remove particulates floating in the air. That is, the air purifier 1 can kill bacteria floating in the air by the germicidal lamp 15 along with the removal of airborne particulates in the air. Furthermore, the air cleaner 1 can also adjust the temperature of air by the heat exchanger 16, and is easy to use.

  Further, the two electrostatic precipitators 30R and 30L are arranged adjacent to each other in the left-right direction, which is a direction orthogonal to the direction of the flow path, so as to close the flow path. The electrostatic dust collection units 70 included in the electrostatic dust collectors 30R and 30L are adjacent to each other in the left-right direction, which is a direction orthogonal to the direction of the flow path, and are arranged in two upper and lower rows. In other words, the electrostatic dust collection unit 70 that removes the suspended fine particles is disposed so as not to form a gap in the left-right direction in the cross section of the flow path. Therefore, the air purifier 1 includes a large number of electric dust collection units 70, and the ratio of the area occupied by the electric dust collection unit 70 to the flow path cross-sectional area is high, and effectively cleans the air in a wide space. be able to. Moreover, since the air in a wide space can be effectively cleaned without increasing the size of the electric dust collection unit 70, the electric dust collection unit 70 can be easily attached and detached from the electric dust collectors 30R and 30L. The maintainability of the air cleaner 1 is good.

  In order to effectively clean the air in a wide space, a large number of electrostatic dust collecting units 70 are required, and the electrostatic dust collecting devices 30R and 30L are increased in size and weight. Here, the electric dust collectors 30 </ b> R and 30 </ b> L are suspended and supported by the gantry 60. That is, the weight of the electrostatic precipitators 30 </ b> R and 30 </ b> L acts on the floor F that is the installation surface via the nine support frames 61 of the gantry 60. Therefore, the load per unit area applied to the floor F on which the electrostatic precipitators 30R and 30L are installed can be reduced. And the freedom degree of the installation place of the electric dust collectors 30R and 30L of the air cleaner 1 increases, for example, space saving becomes possible.

  Next, a method for attaching and detaching the electric dust collection unit 70 in the electric dust collectors 30R and 30L suspended and supported by the gantry 60 will be described. FIG. 21 is a schematic plan view showing an example of the state of the air cleaner 1 when the electric dust collection unit 70 is removed from the electric dust collector 30R located on the right side, and FIG. 22 is a schematic side view of FIG. FIG. 23 is a schematic plan view showing an example of the state of the air cleaner 1 when the electric dust collection unit 70 is removed from the electric dust collector 30L located on the left side.

  The air cleaner 1 needs to periodically clean the electric dust collection unit 70 as one of the maintenance. As described above, the air cleaner 1 collects the suspended fine particles in the air by the multiple electric dust collecting units 70 provided in the electrostatic precipitators 30R and 30L, and thus the collected fine particles are collected in the electric dust collecting unit 70. Cleaning to remove from is necessary. The electric dust collection unit 70 is cleaned in a state where it is detached from the electric dust collectors 30R and 30L.

  When the operator removes the electrostatic dust collecting unit 70 from the electrostatic dust collector 30R located on the right side, the operator moves the electrostatic dust collector 30R rearward with respect to the gantry 60 as shown in FIGS. In the state. An operator enters the air-conditioning chamber 10 through the door 22, passes through the rear region 60LR of the left gantry region 60L, and is positioned in the rear region 60RR of the right gantry region 60R that is behind the electric dust collector 30R. The operator disengages the locking hooks 69a and 69b of the gantry 60 from the lock arms 35 and 35 of the electrostatic precipitator 30R, and moves the electrostatic precipitator 30R to the rearmost position with respect to the gantry 60. At this time, the second stoppers 58 and 58 and the stop plates 68a and 68b of the rails 67a and 67b are in contact with each other, and the electrostatic precipitator 30R is located in the rear region 60RR of the right frame region 60R. Then, the opening / closing lid 39 provided on the left side of the electrostatic precipitator 30R is exposed to the rear region 60LR side of the left gantry region 60L (see FIG. 22). In this state, the operator is located in the rear region 60LR of the left gantry region 60L, removes the opening / closing lid 39 as described above, and sequentially pulls out the plurality of electrostatic dust collection units 70,. The electric dust collection units 70,..., 70 are removed from the electric dust collection device 30R. In addition, in order to attach the electrostatic dust collecting units 70,..., 70 to the electrostatic dust collecting device 30R, a procedure reverse to the above is performed.

  On the other hand, when removing the electrostatic precipitator unit 70 from the electrostatic precipitator 30L located on the left side, the operator moved the electrostatic precipitator 30L rearward with respect to the gantry 60 as shown in FIG. Do in state. An operator enters the air conditioning chamber 10 through the door 22 and is located in the rear region 60LR of the left gantry region 60L, which is behind the electrostatic precipitator 30L. The operator disengages the locking hooks 69c and 69d of the gantry 60 from the lock arms 35 and 35 of the electrostatic precipitator 30L, and moves the electrostatic precipitator 30L to the rearmost position with respect to the gantry 60. At this time, the second stoppers 58, 58 and the stop plates 68c, 68d of the rails 67c, 67d are in contact with each other, and the electrostatic precipitator 30L is located in the rear region 60LR of the left gantry region 60L. The open / close lid 39 provided on the right side of the electrostatic precipitator 30L is exposed to the rear region 60RR side of the right frame region 60R. In this state, the operator is located in the rear region 60RR of the right gantry region 60R, removes the opening / closing lid 39 as described above, and sequentially pulls out the plurality of electrostatic dust collection units 70,. The electric dust collection units 70,..., 70 are removed from the electric dust collection device 30L. The electric dust collecting units 70,..., 70 are attached to the electric dust collecting device 30L by a procedure reverse to the above.

  Here, as described above, when the electrostatic precipitators 30 </ b> R and 30 </ b> L move most rearward with respect to the gantry 60, the rear portion thereof is positioned forward from the rear end of the gantry 60 by a predetermined distance. It is configured. When the electrostatic precipitator 30R moves most backward with respect to the gantry 60, the gantry 60 and the electrostatic precipitator 30R come into contact with the germicidal lamp 15 on which the electrostatic precipitator 30R is disposed rearward. It is configured so that there is no. Therefore, the operator can move without being aware of the rear side of the electrostatic precipitator 30R, and the maintainability is good. Further, when the electrostatic precipitator 30L moves most rearward with respect to the gantry 60, the gantry 60 and the electrostatic precipitator 30L allow the operator to travel between the rear region 60RR of the right gantry region 60R and the door 22. Is formed in the rear region 60LR of the left gantry region 60L. Therefore, the operator can attach and detach the electric dust collection units 70,..., 70 while going back and forth between the rear region 60RR and the door 22, so that the maintainability is good.

  The electrostatic precipitators 30R and 30L are configured to attach and detach the electrostatic precipitator units 70,... Therefore, the electrostatic precipitators 30R and 30L can attach and detach the electrostatic precipitating units 70,..., 70 without removing other members such as the deodorizing filter 36 and the ozone filter 37, so that the maintainability is good. . Moreover, there is no need to provide a work space in the air conditioning chamber 10 that increases the cross-sectional area of the flow path, and the efficiency of the air cleaner 1 does not decrease.

  Here, the air cleaner 1 has 18 first dust collection units 70 corresponding to the number of the electric dust collection units 70 included in the air cleaner 1, that is, the number of the electric dust collection units 70 included in the electric dust collection devices 30R and 30L. Warning lights 26,... The air cleaner 1 further includes one second warning light (not shown). The operation of the first warning lamps 26,..., 26 and the second warning lamp is controlled by the control unit 24.

  The first warning lamps 26,..., 26 are provided in a display panel 25 provided in the vicinity of the control unit 24 in the air conditioning chamber 10 in the flow path. The first warning lamps 26,..., 26 have a one-to-one correspondence with the 18 electrostatic dust collecting units 70 provided in the electric dust collectors 30R, 30L provided in the air cleaner 1. 24, the first warning lamps 26,..., 26 are arranged on the display panel 25 so as to be in the same positions as the corresponding electric dust collection units 70. Here, FIG. 24 is a schematic view showing the display panel 25.

  The ten first warning lights 26,..., 26 arranged in two rows on the right side of the display panel 25 are the ten electric current collectors provided in the electric dust collector 30R located on the right side. This corresponds to the dust units 70,. The five first warning lamps 26,..., 26 forming the upper row are five electric dust collection units 70,... Housed in a row in the upper storage portion 41 of the electric dust collector 30R. , 70 respectively correspond in order from the right side. In addition, the five first warning lights 26,..., 26 forming the lower row include five electric dust collection units 70 accommodated in a row in the lower storage portion 42 of the electric dust collector 30R, .., 70 in order from the right side.

  On the other hand, the eight first warning lamps 26,..., 26 that are arranged on the left side of the display panel 25 and form two rows on the upper and lower sides are the eight electric devices included in the electric dust collector 30L located on the left side. This corresponds to the dust collecting units 70,. The four first warning lights 26,..., 26 forming the upper row are arranged as four electric dust collection units 70,... Accommodated in a row in the upper storage portion 41 of the electric dust collector 30L. , 70 respectively correspond in order from the right side. In addition, the four first warning lights 26,..., 26 forming the lower row include four electric dust collection units 70 accommodated in a row in the lower storage portion 42 of the electric dust collector 30L, .., 70 in order from the right side.

  Each of the first warning lights 26,..., 26 is detected by the voltage detection device 50, and the voltage value applied to the corresponding electric dust collection unit 70,..., 70 is equal to or less than a predetermined value. In each case, it is configured to operate by turning on, changing the lighting color, or blinking. That is, the first warning lamp 26 is configured to operate when a predetermined voltage is not applied to the corresponding electrostatic dust collection unit 70.

  One second warning lamp (not shown) is provided outside the air conditioning chamber 10 outside the flow path and is provided in the operation unit 23. The second warning lamp corresponds to all of the electrostatic dust collection units 70 included in the air cleaner 1, that is, 18 electrical dust collection units 70 included in the electrostatic dust collectors 30R and 30L. The second warning light is lit when any of the voltage values applied to the electrostatic dust collection units 70,..., 70 detected by the voltage detection device 50 is equal to or less than a predetermined value, It is configured to operate by changing the lighting color or flashing. In other words, the second warning lamp is configured to operate when a predetermined voltage is not applied to any one of the electrostatic dust collection units 70.

  Here, since the electrostatic dust collection unit 70 collects the fine particles floating in the air by the force of static electricity, the electrostatic dust collection unit 70 is in an operating state, that is, in a normal operating state or normal. It is difficult to visually identify whether or not the device is not in operation. However, since the air cleaner 1 includes the first warning lights 26,..., 26 and the second warning lights, the operator can operate the first warning lights 26,. The operation state of the electric dust collection units 70,..., 70 can be visually identified, and is easy to use.

  The first warning lights 26,..., 26 correspond to the electric dust collection units 70,..., 70 on a one-to-one basis, and the arrangement on the display panel 25 also corresponds to the electric dust collection units 70,. ing. Therefore, by operating the first warning lamps 26,..., 26, the operation state of each electric dust collection unit 70,. It is possible to immediately identify whether or not an abnormality has occurred, and it is easy to use.

  In addition, since the second warning light is provided outside the air conditioning chamber 10 outside the flow path, the operation state of the electric dust collection unit 70 can be visually checked without stopping the operation of the air cleaner 1. Can be identified by Further, there is only one second warning lamp, and it is difficult to confuse with other display lamps provided in the operation unit 23 and the like, and is easy to use.

  Here, the pair of power supply electrodes 76 and 76 included in the electric dust collection unit 70 are provided only at the bottom, and are disposed at asymmetrical positions when viewed from the bottom. That is, when the power supply electrodes 76 and 76 are attached to the electrostatic precipitator 30 in a state where the front and rear are reversed to the electrostatic precipitator 30 and a state where the top and bottom are reversed, the voltage is applied to the electrostatic precipitator 70. It is comprised so that it may not be applied. Therefore, even if the electric dust collecting unit 70 is attached to the electric dust collecting device 30 in the normal direction by the operation of the first warning light 26,... Can be used and is easy to use.

  Note that the configurations of the first warning lamp 26 and the second warning lamp are not limited to the above-described configurations. For example, the air cleaner 1 may further include a buzzer so that the buzzer sounds together with the operation of the first warning light 26 and the second warning light. With such a configuration, the operator can identify the operation state of the electric dust collection unit 70 by sound, for example, a reduction in the operating efficiency of the air cleaner 1 due to an abnormality in the electric dust collection unit 70, for example. Can be prevented.

  In addition, the air cleaner 1 is not limited to the above-mentioned structure. The air cleaner 1 includes a plurality of electrostatic precipitators 30 having a plurality of electrostatic precipitators 70 that are detachable, and a plurality of electrostatic precipitators that are adjacent to each other in a direction orthogonal to the direction of the flow path. The electrostatic precipitator unit 70 includes a discharge part 71 that generates corona discharge and charges the suspended fine particles p in the air, and electrically discharges the suspended fine particles p charged by the discharge part 71. The gantry 60 supports a plurality of electrostatic precipitators 30 so as to be movable in the direction of the flow path, and the electrostatic precipitators 30 are adjacent to another electrostatic precipitator. What is necessary is just the structure provided with the opening-and-closing lid | cover 39 opened at the time of the attachment / detachment of the electric dust collection unit 70 in the apparatus 30 side.

  The number of the electrostatic precipitator 30 and the electrostatic precipitator unit 70 can be appropriately designed according to the cross-sectional area of the flow path, the size of the space for cleaning the air, and the like. For example, the air cleaner 1 may be configured to include three electrostatic precipitators 30 arranged so as to be adjacent to each other in the left-right direction. Moreover, the electric dust collector 30 may have a configuration in which the electric dust collection units 70 are arranged in three rows in the vertical direction. Further, the vertical direction of the electric dust collection unit 70 is not particularly limited, and it may be arranged so that the discharge part 71 is located on the upstream side and the collection part 72 is located on the downstream side. For example, the electrostatic dust collection unit 70 housed in the lower housing part 42 is housed in a state in which the feeding electrodes 76, 76 are positioned below, similarly to the electrical dust collection unit 70 housed in the upper storage part 41. It may be configured. Moreover, the number and position of the deodorizing filter 36 and the ozone filter 37 in the electric dust collector 30 are not limited to the above-mentioned structure, and can be designed suitably.

  Further, the electric dust collection unit 70 is not limited to the above-described configuration. The electric dust collection unit 70 is configured to include gripping portions 75, 75 on the left and right side portions, but may be configured to be removable from the opening from which the opening / closing lid 39 is removed. The configuration can be designed as appropriate. For example, the structure provided with the holding part 75 in either one of right and left may be sufficient. In such a case, the electric dust collection unit 70 is arranged so that the electric dust collection unit 70 can be taken out from the opening. For example, when the electrostatic dust collection unit 70 is configured to include the gripping portion 75 on the left side, the power supply electrodes 76 and 76 are provided below the upper storage portion 41 and the lower storage portion 42 of the electric dust collector 30R located on the right side. The electric dust collection unit 70 is accommodated in a state of being located in the upper part of the electric dust collector 30L located on the left side, and the power supply electrodes 76, 76 are located above the lower storage part 42. The electric dust collection unit 70 is accommodated in a state. That is, the electrostatic dust collection unit 70 is arranged so that the gripping portion 75 faces the closing lid 39 side of the electrostatic dust collector 30. Further, the electrostatic dust collection unit 70 has a configuration in which the needle tip of the needle electrode 77 of the discharge unit 71 is directed toward the downstream side, but may be configured such that the needle tip of the needle electrode 77 is directed toward the upstream side. Moreover, the discharge part 71 is not limited to the structure which generate | occur | produces a corona discharge with the needle electrode 77, The structure which generates a corona discharge with a discharge wire may be sufficient. As an electrostatic dust collection unit having a configuration in which the needle tip of the needle electrode is directed toward the upstream side, for example, an electrostatic dust collection unit 170 having a configuration as shown in FIGS. 25 and 26 may be used. Here, FIG. 25 is a schematic horizontal sectional view showing an example of the configuration of another electric dust collection unit 170, and FIG. 26 is a diagram for explaining the collection function of the electric dust collection unit 170 of FIG. It is a schematic vertical sectional view. Here, the arrows in FIGS. 25 and 26 indicate the air flow direction.

  The electric dust collection unit 170 includes a plurality of needle deflection integrated electrodes 171,..., 171, a plurality of collection electrodes 172,. The frame body 173 has a rectangular tube shape with a cylinder axis extending in the front-rear direction, and accommodates a plurality of needle deflection integrated electrodes 171,..., 171 and a plurality of collection electrodes 172,.

  The needle deflection integrated electrode 171 includes a needle electrode 174 and a square columnar deflection electrode portion 175 extending in the front-rear direction. The needle electrode 174 is attached to the front end portion on the upstream side of the deflection electrode portion 175 in a state where the needle tip protrudes toward the upstream side. The plurality of needle deflection integrated electrodes 171 are arranged to form a matrix composed of a plurality of columns extending in the vertical direction and a plurality of rows extending in the left-right direction.

  The collection electrode 172 has a rectangular tube shape with a cylinder axis extending in the front-rear direction. The collecting electrode 172 forms a one-to-one counter electrode with the needle deflection integrated electrode 171 and is disposed in a form in which the needle deflection integrated electrode 171 is fitted inside. Between the collection electrode 172 and the needle deflection integrated electrode 171 fitted therein, a square annular gap having a width of about 5 mm is formed as a passage for air. Each collection electrode 172 is formed as a square cylindrical cell extending in the front-rear direction in which a large number of electrode flat plates are assembled vertically and horizontally to form square openings at both ends. A large number of electrode flat plates that form the collecting electrode 172 are formed inside a rectangular cylindrical support frame 176 having a cylindrical axis extending in the front-rear direction. The support frame 176 is fitted inside the frame 173, and the collecting electrode 172 is attached to the frame 173.

  A linking support member 177 that supports and electrically connects the plurality of needle deflection integrated electrodes 171,..., 171 is disposed at the rear end portion on the downstream side of the frame body 173. The connection support member 177 is fixed to the frame body 173 via an insulating plate 178.

  When the electric dust collection unit 170 configured as described above is in operation, the side of each needle deflection integrated electrode 171 has a positive potential between each needle deflection integrated electrode 171 and each collection electrode 172, and each collection electrode With a connection configuration in which the 172 side is a negative potential or a ground potential, a DC voltage of about 5 kV, for example, is applied from a power source (not shown). In addition, application of a voltage to each needle deflection integrated electrode 171 is performed via a connection support member 177.

  In such a state, as shown in FIG. 26, uniform corona discharge is continuously and stably generated around the needle tip of each needle electrode 174 to form an ionization space region 179. When air containing fine particles passes through the ionization space region 179, oxygen having a low ionization energy is ionized to become positive ions, adhere to the floating fine particles p in the air, and positive air charges are imparted to the fine floating particles p. The The suspended fine particles p to which electric charges are applied pass through between the deflecting electrode portion 175 and the collecting electrode 172 located behind the needle electrode 174, and the fine particles p located in the vicinity of the collecting electrode 172. Is adsorbed to the collection electrode 172 having a negative potential or a ground potential. On the other hand, the suspended fine particles p separated from the collecting electrode 172 are pushed in the direction of the collecting electrode 172 by the Coulomb force as a repulsive force by the positive potential of the deflecting electrode portion 175, and are adsorbed by the collecting electrode 172. The In this way, airborne particulates p are collected by the electric dust collection unit 170 and the air is cleaned. The electrostatic dust collection unit 170 is provided with a gripping portion (not shown) provided on both sides of the frame body 173, a power supply electrode (not shown) provided at the lower portion of the frame body 173, and the like, similar to the electrostatic dust collection unit 70. . Even with the electrostatic dust collection unit 170 having such a configuration, the same effect as that of the above-described electrical dust collection unit 70 can be obtained, and the air cleaner 1 can effectively remove suspended particulates in the air and perform maintenance. The property is good.

  Moreover, the mount frame 60 is not limited to the structure which suspends and supports the electrostatic precipitator 30 as mentioned above. Although illustration explanation is omitted, for example, the gantry 60 is configured to support the electrostatic precipitator 30 so as to be movable in the front-rear direction in a state where the electrostatic precipitator 30 is grounded to the floor F via the transport roller 34. There may be.

  The air conditioning room 10 may be configured to include a lock mechanism that is controlled by the control unit 24 and holds the door 22 in a closed state. For example, the lock mechanism is operated so as to maintain the door 22 in a closed state when the germicidal lamp 15 is activated, and to be opened when the germicidal lamp 15 is not activated. . With such a configuration, the door 22 is not inadvertently opened, and the influence of the germicidal lamp 15 on the operator is reduced. The lock mechanism is configured to maintain the door 22 in a closed state when the suction fan device 17 is operating, and to be openable when the suction fan device 17 is not operating. May be. Further, the germicidal lamp 15 and the suction fan device 17 may be configured such that the operation is stopped according to the opening of the door 22. By adopting such a configuration, the influence on the operator by the germicidal lamp 15 and the suction fan device 17 is reduced.

  The present disclosure can be applied to an air purifier that collects fine particles suspended in the air such as cigarette smoke, welding fume, and various oil mists to clean the air. However, the present disclosure is not limited to the above-described embodiment, and can take any form without departing from the gist of the invention. The air purifier of the present disclosure can be applied to an air purifier that purifies air in indoor spaces such as houses, apartment houses, offices, restaurants, amusement facilities, factories, and hotels, and in particular, air in a wide space. Useful for air purifiers

1 Air Cleaner 10 Air Conditioning Room (Flow Path)
DESCRIPTION OF SYMBOLS 11 Intake port 12 Exhaust port 16 Heat exchanger 26 1st warning light 30R, 30L Electric dust collector 36 Deodorizing filter 37 Ozone filter 39 Opening lid 50 Voltage detection device 60 Base 70 Electric dust collection unit 71 Discharge part 72 Collection part 77 Needle electrode 79 Counter electrode 85 Collection electrode plate 86 Deflection electrode plate p Floating particulate

Claims (9)

A plurality of electrostatic precipitators disposed in the middle of the flow path for exhausting air sucked from the suction port from the exhaust port, and having a plurality of electrostatic dust collection units detachably;
A pedestal that supports the plurality of electrostatic precipitators arranged in a row adjacent to the direction orthogonal to the direction of the flow path;
The electrostatic dust collection unit has a discharge unit that generates corona discharge to charge the suspended fine particles in the air, and a collection unit that electrically attaches the suspended fine particles charged by the discharge unit,
The gantry supports a plurality of the electrostatic precipitators movably in the direction of the flow path,
The electric dust collector is provided with an open / close lid that is opened when the electric dust collector unit is attached / detached on the side of another adjacent electric dust collector. The plurality of electrostatic dust collection units are arranged so as to be adjacent to each other in a direction orthogonal to the direction of the flow path,
The air cleaner according to claim 1. The plurality of electric dust collection units are arranged in a plurality of rows,
The air cleaner according to claim 2. The electrostatic precipitator is suspended and supported by the gantry,
The air cleaner according to any one of claims 1 to 3. The electrostatic precipitator comprises a filter on the downstream side of the electrostatic precipitator unit,
The air cleaner according to any one of claims 1 to 4. A heat exchanger is provided at a predetermined interval on the downstream side of the electric dust collector,
The air cleaner according to any one of claims 1 to 5. Characterized in that it comprises a voltage detection device for detecting a voltage applied to each of the plurality of electric dust collection units,
The air cleaner according to any one of claims 1 to 6. A plurality of first warning lights respectively corresponding to the plurality of electric dust collection units;
A second warning light corresponding to all of the plurality of electrostatic dust collection units,
The first warning light and the second warning light are activated according to a detection value of the voltage detection device,
The air cleaner according to claim 7. A plurality of needle electrodes arranged in a matrix in a plane perpendicular to the direction of the flow path, in the discharge space where both ends of the upstream side and the downstream side of the flow path open;
Each of the needle electrodes is composed of a counter electrode that forms the discharge space.
The collecting section includes a plurality of collecting electrode plates that divide a space continuous with the discharge space and divide the flow path into a plurality of parts,
Each of the collecting electrode plates corresponds to each of the collecting electrode plates, and is composed of a plurality of deflecting electrode plates that impart a deflecting force toward the collecting electrode plate to the suspended fine particles.
The air cleaner according to any one of claims 1 to 8.

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