JP4835430B2 - Ventilation dust collection system - Google Patents

Description

  The present invention relates to a residential ventilation dust collection system.

  In recent years, the importance of planned ventilation (mechanical ventilation) has increased with the high airtightness and high thermal insulation of houses. In planned ventilation, it is important to clarify the flow of air in the entire house and to properly take in clean outside air while efficiently exhausting air in easily contaminated spaces.

  As a configuration of a ventilation system adopted for this type of planned ventilation, for example, as disclosed in Patent Documents 1 and 2, etc., a ventilation unit that forcibly forms an air flow is installed on the ceiling portion of each floor The fresh air outside is taken into the ventilation unit through the outside air intake pipe arranged on the back of the ceiling, and fresh air is supplied from the ventilation unit to each room, while the dirty air in each room is collected and collected. Typically, heat exchange is performed between air and air taken from outside, and then the collected air is discharged outside.

  In such a ventilation system, fine floating matters such as dust, yellow sand, pollen, and insects in the outside air are taken into the ventilation unit through the outside air intake pipe. For this reason, these floating substances are usually removed by a filter attached to the ventilation unit. However, the filter installed in the air passage causes pressure loss and reduces ventilation efficiency. In addition, since it is inevitable that the filter is clogged in a short period of time due to suspended matters, if maintenance such as cleaning or replacement of the filter is neglected, ventilation efficiency will be further deteriorated.

Therefore, as disclosed in, for example, Patent Documents 3 and 4, etc., so-called cyclone type dust collection that removes suspended matter using the centrifugal force of the swirling flow on the upstream side (outside air suction side) of the ventilation system. It is conceivable to reduce the burden required for filter maintenance by providing a device.
Japanese Patent Laid-Open No. 10-160226 JP 2002-98381 A JP 58-92739 A JP 2000-146251 A

The residential ventilation system as disclosed in the above-mentioned Patent Documents 1 and 2 uses a duct having a diameter of about 10 cm for a supply and exhaust pipe line, and continuously with an air volume of about 40 to 100 m ³ per hour. It is normal to drive. Under such conditions, the wind speed in the pipeline is about several meters per second, but this wind speed is much smaller than the wind speed of a kitchen ventilation fan, a cyclone vacuum cleaner, or the like.

  In principle, the cyclone type dust collector has a higher dust collection (separation) performance as the diameter of the cyclone drum is smaller and the speed of the swirl flow is higher. However, in order to connect a small and high-speed cyclone type dust collector to the low wind speed type ventilation system as described above, it is necessary to partially reduce the diameter of the duct to increase the wind speed. Then, resistance increases and ventilation efficiency is impaired, which is not preferable in practical use.

  Therefore, the present inventors can connect a duct having a diameter of about 10 cm while suppressing resistance to the ventilation system, and set the diameter of a practical cyclone drum capable of realizing about 80% as the dust collection efficiency to 20%. Set to ~ 30 cm. However, the installation of such a large-sized cyclone drum in a general house is very limited in terms of space. In addition, a normal cyclone type dust collector allows air to flow in along the circumferential direction of the cyclone drum, and causes the air after dust removal to flow upward in the axial direction of the cyclone drum. It is also not easy to secure it in a general residential space.

  The present invention has been made in view of the circumstances as described above, and is excellent in space-saving properties, in which a cyclone dust collector with practical performance can be rationally installed in a limited space in a house. A ventilation system is proposed.

  Furthermore, when the cyclone type dust collector is installed in a house, it is necessary to periodically discard the collected dust. Therefore, this invention also makes it a solution subject to make daily maintenance easy in this ventilation system.

In order to achieve the above-described object, the ventilation dust collection system of the present invention is installed in a ceiling part connected to the cyclone dust collector installed in communication with the outside air inlet, and the cyclone dust collector, A ventilation dust collection system comprising: a ventilation unit that supplies the outdoor air cleaned by the cyclonic dust collector to each indoor room, and collects the air in each room and discharges it to the outdoors. The dust device is composed of a cyclone drum whose lower half is reduced in diameter downward, an outside air intake pipe that communicates with the outside air inlet and is connected to the upper part of the cyclone drum in the circumferential direction, and an upper part of the cyclone drum. a cleaning duct connected, and a collecting container detachably attached to the lower portion of the cyclone drum, the cyclone drum, to project the top above the ceiling, the Parts together are placed is exposed below the ceiling, the outside air intake duct is connected to the straight cyclone drum along the ceiling, the ceiling the cleaning duct is bent sideways just above the cyclone drum Along with it is connected to the ventilation unit.

  That is, according to the present invention, a cyclone dust collector is installed close to the ceiling, and a clean air duct connecting the cyclone dust collector and the ventilation unit is disposed in the space behind the ceiling. The cyclone type dust collector is installed in a state where the cyclone drum is suspended from the ceiling. By adopting such a configuration, it is possible to install a cyclone drum having a size capable of exhibiting practically sufficient performance by effectively using the space in the house.

  In the above invention, when the cyclone type dust collecting device and the outside air intake port are separated from each other, an outside air suction pipe connecting the outside air intake port and the cyclone type dust collecting device can also be disposed on the back of the ceiling.

In addition, the cyclone drum is installed near the outer wall and below the ceiling, and an external air intake is provided in the adjacent outer wall, and the external air intake conduit is directly connected to the external air intake substantially horizontally. The above-mentioned clean trachea can be extended to the back of the ceiling, bent sideways, and connected to the ventilation unit along the ceiling.

  In the above invention, the height from the floor surface to the collection container of the cyclone type dust collector is set to 2 m or less, so that the collected dust can be easily discarded by removing only the collection container. And daily maintenance becomes easy.

  In the above invention, the cyclone type dust collector is installed in a close-in or other storage space or pipe space, and an inspection port is provided at a position facing the collection container in the partition wall that divides the space. This makes it easy to check the collection of collected substances and keeps the aesthetics of the room well.

  In the ventilation dust collection system of the present invention configured as described above, a cyclone dust collector is installed close to the ceiling, and a clean air duct connecting the cyclone dust collector and the ventilation unit is arranged behind the ceiling. Therefore, the cyclone dust collector can be installed without hindering the comfortability by effectively using the space in the house. Thereby, the size of the cyclone drum can also be set to a practical size with low resistance to the ventilation system.

  Furthermore, by installing the cyclone drum of the cyclone type dust collector in a form that suspends it from the ceiling, the collection container attached to the lower part of the cyclone drum is held at a height that can be reached from the floor surface. Maintenance becomes easy.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic configuration of a cyclone dust collector according to an embodiment of the present invention. The cyclone type dust collecting apparatus 1 includes a cyclone drum 11 having a cylindrical shape in which an upper half portion is cylindrical and a lower half portion is reduced in diameter downward, and an outside air intake pipe 12 and a clean trachea provided on the upper portion. A path 13 and a collection container 14 detachably attached to the lower part of the cyclone drum 11 are provided.

  The cyclone drum 11 has a double structure in which the outside of a drum main body 110 made of a synthetic resin molded body is covered with a heat insulating material 15 made of a foamable resin or the like. The outside air intake conduit 12 communicates with the outside air inlet 20 (see FIG. 2), and sends outside air taken in from the outside air inlet 20 along the circumferential direction of the cyclone drum 11. The outside air sucked into the cyclone drum 11 generates a swirling flow in the cyclone drum 11, and thereby suspended matters such as dust, yellow sand, pollen and insects in the outside air are centrifuged. The separated suspended matter falls into the collection container 14 from the lower end opening of the cyclone drum 11. The collection container 14 is formed of a transparent synthetic resin or the like so that the state in which the suspended matter is accumulated can be visually recognized. The clean tracheal passage 13 is open and protrudes inward of the upper part of the cyclone drum 11, and discharges air from which suspended substances are removed upward from the central portion of the swirling flow. The clean tracheal passage 13 is bent sideways immediately above the cyclone drum 11, and its extension is connected to the ventilation unit 5 (see FIG. 2).

As a practical size of such a cyclone type dust collector 1 for a general house, the diameter of the cyclone drum 11 is 20 to 30 cm, the height of the cyclone drum 11 is 70 to 100 cm, the outside air intake pipe 12 and the cleanliness. The inner diameter of the tracheal passage 13 is 9 to 12 cm, and the diameter of the collection container 14 is about 10 to 15 cm.

FIG. 2 shows the overall configuration of a ventilation dust collection system in a house including the cyclone dust collector 1. The illustrated house is a two-story house with high airtightness and high heat insulation, and the ventilation dust collection system according to the present invention is provided on the first floor and the second floor, and is configured to ventilate each floor. .

  First, on the first floor, an outside air inlet 20 is provided in the outer wall 2 on the right side of the figure, and an outside air intake pipe 12 is connected to the outside air inlet 20. The outside air intake pipe 12 is disposed in a horizontal direction straight from the outside air inlet 20 along the ceiling 3 on the first floor (the space between the ceiling on the first floor and the floor on the second floor).

  The cyclonic dust collector 1 is installed in a pipe space 42 adjacent to a hall 41 on the first floor. The installation form of the cyclonic dust collector 1 in this pipe space 42 is shown in FIG. The cyclone type dust collecting apparatus 1 is attached in a state where the upper part 1/3 of the cyclone drum 11 protrudes from the ceiling 3 and the lower part 2/3 of the cyclone drum 11 is exposed below the ceiling 30. By projecting the upper part of the cyclone drum 11 to the ceiling back 3, the outside air intake pipe 12 is connected to the cyclone drum 11 almost straight along the ceiling 30. Further, the clean tracheal passage 13 bent just above the cyclone drum 11 can be extended in the horizontal direction along the ceiling 30 as it is.

  If such an installation form is adopted, when the outside air intake pipe 12 and the clean air pipe 13 have a diameter of about 10 cm, for example, the height of the piping space including both pipes can be kept to about a few tens of centimeters. Since it can do, arrangement | positioning to a general ceiling space becomes easy. In the illustrated embodiment, the clean tracheal passage 13 is passed through a web of a second-floor floor beam 31 made of H-shaped steel via a piping sleeve 32.

  And by installing the cyclone type dust collector 1 in such a position, the collection container 14 is several tens of centimeters below the ceiling 30, that is, from the floor of the first floor in a general house. It is held at a position where the height is approximately 2 m or less. The cyclone drum 11 is held by, for example, bracket-like metal fittings 34 attached to the partition wall 33, suspension metal fittings 36 suspended from the floor material 35 on the second floor, and the like. An openable inspection port 38 is provided at a position of the partition wall 37 that partitions the pipe space 42 so as to face the collection container 14.

  On the first floor, the ventilation unit 5 is installed on the ceiling of the hall 41. The ventilation unit 5 incorporates an intake fan and an exhaust fan that forcibly generate a flow of air supply and exhaust in the house, and the swirling flow of the outside air in the cyclone type dust collector 1 is caused by the suction action of the intake fan. Arise. Further, an indoor air supply conduit 51 is connected to the ventilation unit 5. The indoor air supply conduit 51 is appropriately distributed to each room on the first floor via the ceiling back 3 and supplies clean air to each room through the air outlet 52 provided on the ceiling of each room.

  Dirty air including moisture and odor generated in each room is guided to the hole 41 through a vent undercut provided at the entrance and exit of each room, and a recovery port provided on the lower surface of the ventilation unit 5 53 to the ventilation unit 5. Or it collect | recovers by the ventilation unit 5 through the indoor collection pipe line (not shown) etc. which were connected to each ventilation port from the ventilation port provided in the ceiling of the specific space, such as a washroom and a bathroom. The collected air is heat-exchanged with clean air via the cyclone type dust collector 1 through a heat exchange device built in the ventilation unit 5, and an external exhaust pipe (not shown). It is discharged to the outside through. The external exhaust pipe is disposed on the ceiling back 3 in the same manner as the outside air intake pipe 12.

  Also on the second floor, outside air is taken into the cyclone type dust collector 1 to remove suspended matters and the like, and then supplied to each room through the ventilation unit 5. Further, dirty air in each room is collected in the ventilation unit 5. The air flow to discharge outside is basically the same as the first floor. However, in the exemplary embodiment, the position of the cyclonic dust collector 1 attached to the second floor is close to the outer wall 2. The installation form is shown in FIG.

  The cyclone type dust collector 1 is mounted in a pipe space 43 provided facing the outer wall 2 with the upper part of the cyclone drum 11 being positioned several cm to 20 cm below the ceiling 30. The outside air intake pipe 12 directly connects the outside air inlet 20 provided in the outside wall 2 and the upper part of the cyclone drum 11 substantially horizontally at the shortest distance. The clean air duct 13 extends from the upper part of the cyclone drum 11 to the ceiling back (the back of the hut) 3 and bends, and the tip of the clean air duct 13 extends sideways along the ceiling 30 like the first floor. An inspection port 38 is provided in the partition wall 39 that divides the pipe space 43 in accordance with the height of the collection container 14.

  Even when such an installation form is adopted, the cyclone dust collector 1 and the clean tracheal passage 13 can be easily arranged using a general ceiling space. Moreover, the height of the collection container 14 can be made several tens of centimeters below the ceiling 30 to facilitate daily maintenance.

  Thus, since the ventilation dust collection system of this invention installs the cyclone type dust collector 1 close to the ceiling 30, and uses the ceiling back 3 as a duct space, the structure of a house and each room The pipe line can be arranged flexibly in accordance with the floor plan. This makes it easy to ensure the effective diameter of the pipe line, and therefore it is possible to realize ventilation with low noise and high efficiency even at low speeds.

According to the verification by the present inventors, the ventilation dust collection system according to the above embodiment is applied to a general scale house, and the fan of the ventilation unit is continuously operated for 24 hours. It was confirmed that dust, pollen, insects, etc. could be collected at a practically sufficient level when low-speed ventilation of about 60 m ³ , which is the lower limit of air volume, was performed.

  The present invention is not limited to the above-described embodiment, and can be implemented with appropriate modifications without departing from the spirit of the present invention. For example, in the present invention, the detailed performance and specifications of the ventilation unit 5 are not particularly limited, and various known conventional devices can be used for the ventilation unit 5. Further, the position of the fan for forcibly generating the entire flow of air supply / exhaust in the house is not limited to the form built in the ventilation unit 5, but is provided only on the side for sucking outside air or sucking outside air. It can also be provided on both the side and the side from which room air is discharged.

It is a partial cross section and a side view showing a schematic structure of a cyclone type dust collector which constitutes the present invention. 1 is an overall configuration diagram of a ventilation dust collection system according to the present invention. It is a figure which shows the installation form of the cyclone type dust collector of the 1st floor in the ventilation dust collection system shown in FIG. It is a figure which shows the installation form of the cyclone type dust collector of the 2nd floor in the ventilation dust collection system shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cyclone type dust collector 11 Cyclone drum 12 Outside air intake line 13 Clean air line 14 Collection container 20 Outside air intake 3 Ceiling back 30 Ceiling 42 Pipe space 43 Pipe space 5 Ventilation unit 37 Partition wall 38 Inspection port 39 Partition wall

Claims (4)

A cyclone dust collector installed in communication with the outside air inlet, and the outdoor air purified by the cyclone dust collector connected to the cyclone dust collector and installed on the ceiling. A ventilation dust collection system comprising: a ventilation unit that supplies and collects air in each room and discharges the air outside the room ;
The cyclone type dust collector includes a cyclone drum having a substantially lower half-diameter downward, an outside air intake pipe that communicates with an outside air inlet and is connected to the upper part of the cyclone drum in a circumferential direction, and a cyclone drum. A clean tracheal passage that is connected upward to the upper part, and a collection container that is detachably attached to the lower part of the cyclone drum,
The cyclone drum is installed with the upper part protruding from the ceiling and the lower part exposed below the ceiling , and the outside air intake pipe is connected straight to the cyclone drum along the ceiling, A ventilation dust collection system, characterized in that the clean trachea is bent sideways directly above the cyclone drum and connected to the ventilation unit along the ceiling . A cyclone dust collector installed in communication with the outside air inlet, and the outdoor air purified by the cyclone dust collector connected to the cyclone dust collector and installed on the ceiling. A ventilation dust collection system comprising: a ventilation unit that supplies and collects air in each room and discharges the air outside the room;
The cyclone type dust collector includes a cyclone drum having a substantially lower half-diameter downward, an outside air intake pipe that communicates with an outside air inlet and is connected to the upper part of the cyclone drum in a circumferential direction, and a cyclone drum. A clean tracheal passage that is connected upward to the upper part, and a collection container that is detachably attached to the lower part of the cyclone drum,
The cyclone drum is installed near the outer wall and below the ceiling, and an external air intake is provided in the adjacent outer wall, and the external air intake pipe is directly connected to the external air intake substantially horizontally, A ventilation dust collection system, characterized in that the clean trachea is extended to the back of the ceiling, bent sideways and connected to the ventilation unit along the ceiling . The ventilation dust collection system according to claim 1 or 2,
The cyclone type dust collector is a ventilation dust collection system, which is installed at a position where the height from the floor of the installation floor to the collection container is within 2 m . In the ventilation dust collection system according to claim 1, 2, or 3,
The cyclone type dust collector is installed in a closet or other storage space or pipe space on its installation floor, and an inspection port is provided at a position facing the collection container on the partition wall that divides the space. Features a ventilation dust collection system.

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