Air blowing system

Abstract

To provide a technique for efficiently sucking odors on a floor surface while restraining increase in exhaust volume in a toilet room.SOLUTION: A lining suction port 150 is arranged in a front side surface 110 of a lining 100 installed along a wall surface 22 of a toilet room 10, and on which a toilet bowl 200 is installed on the front side. An exhaust port direct duct 300 extends to a ceiling surface 24 from the lining 100, and transfers air in the toilet room 10 sucked to the inside of the lining 100 from the lining suction port 150, toward the upper side. An air blower 400 comprises an air blower discharge port 404 arranged on the upper side of the lining suction port 150, and discharges air toward the upper side from the air blower discharge port 404.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a ventilation system.

Background Art

[0002] In order to efficiently ventilate a toilet room, a suction port is provided in the lower part of the toilet room, and the suction port is connected to a forced exhaust path through an exhaust space. With such a configuration, the air in the toilet room is sucked from the suction port into the exhaust space, and the sucked air is exhausted through the forced exhaust path (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By providing a suction port in the lower part of the toilet room and sucking the air in the toilet room, the odor on the floor surface is also sucked in a short path. However, since the air in the entire toilet room is sucked from the suction port, it is necessary to increase the exhaust volume.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to provide a technique for efficiently sucking the odor on the floor surface while suppressing an increase in the exhaust volume of the toilet room.

Means for Solving the Problems

[0006] To solve the above problems, a ventilation system according to an aspect of the present disclosure includes a lining installed along the wall surface of a toilet compartment, and a lining suction port disposed on the front surface of the lining where a toilet bowl is installed on the front side, an exhaust port direct duct extending from the lining to the ceiling surface of the toilet compartment and transporting the air in the toilet compartment sucked into the lining from the lining suction port upward, and a blower having a blower outlet disposed above the lining suction port and blowing air upward from the blower outlet.

[0007] In addition, any combination of the above components, and those obtained by converting the expressions of the present disclosure among methods, apparatuses, systems, recording media, computer programs, etc. are also effective as aspects of the present disclosure.

Advantages of the Invention

[0008] According to the present disclosure, it is possible to efficiently suck the odor on the floor surface while suppressing an increase in the exhaust volume of the toilet compartment.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

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Figure 8

Embodiments for Carrying Out the Invention

[0010] The embodiments described below all show a preferred specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of the components shown in the following embodiments, as well as the steps (processes) and the order of the steps, etc. are only examples and are not intended to limit the present disclosure. Therefore, among the components in the following embodiments, the components not described in the independent claims showing the most basic concept of the present disclosure are described as arbitrary components. Also, in each figure, substantially the same configurations are denoted by the same reference numerals, and duplicate descriptions are omitted or simplified.

[0011] Figs. 1(a)-(c) show the configuration of the air supply system 1000. Fig. 1(a) is an upper perspective view of the toilet room 10, and Figs. 1(b)-(c) are enlarged views of a part of the toilet room 10. A floor surface 20 is arranged below the toilet room 10, a wall surface 22 is arranged on one side surface of the toilet room 10, and a ceiling surface 24 is arranged above the toilet room 10. Thus, the toilet room 10 is a space surrounded by the floor surface 20, the wall surface 22, and the ceiling surface 24. Also, a first side wall 12 and a second side wall 14 are arranged to face each other on both sides of the wall surface 22 of the toilet room 10.

[0012] A lining 100 is installed along the wall surface 22 of the toilet room 10. The lining 100 includes a front side surface 110 provided in parallel to the wall surface 22 on the front side of the wall surface 22, and an upper side surface 120 provided in parallel to the floor surface 20 above the floor surface 20. The front side surface 110 and the upper side surface 120 are connected to each other at a right angle at the front upper corner of the lining 100. Thereby, the lining 100 has a hollow space 102 surrounded by the floor surface 20, the wall surface 22, the front side surface 110, and the upper side surface 120. The hollow space 102 corresponds to the inside of the lining 100.

[0013] On the front side 110 of the lining 100, a plurality of toilets 200 are installed. The toilet 200 may be, for example, a urinal or a toilet bowl. Therefore, the lining 100 is provided with a support mechanism for supporting the plurality of toilets 200. Also, inside the lining 100, a water supply pipe and a drain pipe connected to each toilet 200 are stored.

[0014] A plurality of lining suction ports 150 penetrating between the toilet room 10 and the hollow space 102 are arranged below the front side 110. An exhaust port direct duct 300 extending from the lining 100 to the ceiling surface 24 of the toilet room 10 is provided at the end of the second side wall 14 of the lining 100. The exhaust port direct duct 300 is connected to the exhaust port 310 on the ceiling surface 24, and a ventilation device (not shown) is provided at the exhaust port 310. Since both the ventilation device and the exhaust port direct duct 300 have a hollow structure, the ventilation device is connected to the toilet room 10 through the exhaust port direct duct 300, the hollow space 102, and the lining suction port 150.

[0015] Figures 2(a)-(b) show the operation of the air supply system 1000. Figure 2(a) shows the path of the exhaust flow 510 in the toilet room 10. When the ventilation device operates, the air in the toilet room 10 is sucked into the inside of the lining 100 from the lining suction port 150 as the exhaust flow 510. The exhaust flow 510 sucked into the inside of the lining from the lining suction port 150 is conveyed upward through the exhaust port direct duct 300. The ventilation device discharges the exhaust flow 510 conveyed by the exhaust port direct duct 300 to the outside. Figure 2(b) will be described later and returns to Figures 1(a)-(c).

[0016] A blower 400 is installed on the upper side 120 of the lining 100. For example, the blower 400 and the toilet 200 are installed in a one-to-one correspondence. Therefore, when three toilets 200 are installed as shown in Figure 1(a), three blowers 400 are installed. The blower 400 has a box shape, has a blower suction port 402 on the front surface, and has a blower outlet 404 on the upper surface. In this way, the blower suction port 402 and the blower outlet 404 are arranged above the lining suction port 150, particularly above the upper end of the toilet 200.

[0017] In order to hide the blower 400 installed on the upper surface 120 of the lining 100, a blower cover 410 is installed above the upper surface 120 of the lining 100. The blower cover 410 has a first surface 414 arranged side by side with the upper surface 120 above the upper surface 120, and a second surface 416 flush with the front surface 110. Since the front edge of the first surface 414 and the upper edge of the second surface 416 are connected, the blower cover 410 has an L-shaped cross section. An opening is provided in the first surface 414 to expose the upper surface (the blower outlet 404) of the blower 400. Also, there is a gap between the lower edge of the second surface 416 and the upper edge of the front surface 110, and the gap is the blower cover opening 412.

[0018] FIG. 2(b) shows the path of the circulating flow in the toilet compartment 10. When the blower 400 operates, the air in the toilet compartment 10 is sucked into the blower 400 from the blower suction port 402 through the blower cover opening 412 as the circulating suction flow 500. Also, the blower 400 blows out the circulating suction flow 500 sucked from the blower suction port 402 as the circulating blowing flow 502 upward from the blower outlet 404. The circulating blowing flow 502 blown out from the blower outlet 404 rises along the wall surface 22. The circulating suction flow 500 and the circulating blowing flow 502 are collectively referred to as the circulating flow.

[0019] FIGS. 3(a)-(f) show the air flow by the ventilation system 1000. FIG. 3(a) is a perspective view of the toilet compartment 10 when the blower 400 is not provided, and FIG. 3(b) is a side view of the toilet compartment 10 when the blower 400 is not provided. Therefore, FIGS. 3(a)-(b) can be said to be the comparison targets of this embodiment. The air in the entire toilet compartment 10 is sucked into the lining 100 from the lining suction port 150. The sucked air is sucked into the ventilation device through the lining 100 and the exhaust port direct duct 300, and the ventilation device discharges the sucked air to the outside. When the air in the entire toilet compartment 10 is to be exhausted, the exhaust volume of the ventilation device is increased.

[0020] FIG. 3(c) is a perspective view showing the circulation flow by the blower 400, and FIG. 3(d) is a side view showing the circulation flow by the blower 400. FIGS. 3(c)-(d) show the circulation flow by the blower 400 when the ventilation device and the blower 400 are operating. The air above the upper end of the toilet 200 is sucked into the blower 400 as the circulation suction flow 500. Further, the blower 400 blows out the sucked circulation suction flow 500 upward along the wall surface 22 as the circulation blowout flow 502. The circulation blowout flow 502 rises along the wall surface 22 and flows in a direction away from the wall surface 22 by the ceiling surface 24. The air in the portion sandwiched between the circulation suction flow 500 and the circulation blowout flow 502 is attracted and flows by the circulation suction flow 500 and the circulation blowout flow 502. Such air is shown as the induced flow 504.

[0021] FIG. 3(e) is a perspective view showing the exhaust flow by the ventilation device, and FIG. 3(f) is a side view showing the exhaust flow by the ventilation device. FIGS. 3(e)-(f) show the exhaust flow by the ventilation device when the ventilation device and the blower 400 are operating. As described above, since the air above the upper end of the toilet 200 is sucked into the blower 400, the air below the upper end of the toilet 200 is sucked into the lining 100 from the lining suction port 150 as the exhaust flow 510. The exhaust flow 510 is sucked into the ventilation device through the lining 100 and the exhaust port direct duct 300, and the ventilation device discharges the exhaust flow 510 to the outside. Since the air below the upper end of the toilet 200 in the toilet room 10 is the exhaust target, increasing the exhaust volume of the ventilation device is suppressed.

[0022] Figures 4(a)-(c) show the wind speed distribution by the ventilation system 1000. Figure 4(a) is a top view of the toilet room 10 when the blower 400 is not provided, and Figure 4(b) is a top view of the toilet room 10 when the blower 400 is provided. These are the simulation calculation results showing the wind speed distribution [m / s] in the direction component of the lining suction port 150 at 30 cm above the floor surface 20 with the exhaust volume of the ventilation device set to a constant value. As shown in Figure 4(c), the magnitude of the wind speed distribution is indicated by the darkness of the color, and the darker the color, the larger the wind speed distribution. As described above, by operating the blower 400, the amount of air sucked into the lining suction port 150 decreases. Therefore, in Figure 4(b), the wind speed distribution becomes larger compared to Figure 4(a).

[0023] (Modification Example 1) Next, Modification Example 1 will be described. In the previous embodiments, the blower 400 sucks the air in the toilet room 10 as the circulation suction flow 500. On the other hand, in Modification Example 1, the blower 400 sucks the air outside the toilet room 10 as the circulation suction flow 500. Here, the description will focus on the differences from the previous ones.

[0024] Figures 5(a)-(c) show the configuration of the ventilation system 1000. Figure 5(a) is an upper perspective view of the toilet room 10, Figure 5(b) is a side view of the first side wall 12, and Figure 5(c) is an enlarged view of a part of the toilet room 10. In particular, Figure 5(c) shows the configuration with the blower cover 410 removed. In Modification Example 1, the lower edge of the second surface 416 of the blower cover 410 is connected to the upper edge of the front side surface 110. Therefore, different from the embodiment, the blower cover opening 412 is not formed between the lower edge of the second surface 416 and the upper edge of the front side surface 110. As a result, the air in the toilet room 10 is not sucked into the blower 400 from the blower suction port 402.

[0025] A wall opening 16 is provided in the first side wall 12. The wall opening 16 communicates with the inner space of the blower cover 410. Therefore, the blower suction port 402 communicates with the outside of the toilet compartment 10. When the blower 400 operates, the air outside the toilet compartment 10 is sucked from the wall opening 16 into the inner space of the blower cover 410. The blower 400 blows out the air outside the toilet compartment 10 sucked from the blower suction port 402 upward from the blower outlet 404 as a circulating blown-out flow 502. The circulating blown-out flow 502 flows in the same manner as shown in FIGS. 3(c)-(d). Further, by being attracted by this circulating blown-out flow 502, an induced flow 504 is generated in the toilet compartment 10. As a result, the exhaust flow 510 in the toilet compartment 10 is shown in the same manner as FIGS. 3(c)-(d).

[0026] (Modification 2) Next, Modification 2 will be described. In the previous embodiments, a plurality of blowers 400 are installed, so that the circulating blown-out flow 502 rises along the entire surface of the wall surface 22. On the other hand, in Modification 2, for example, one blower 400 is installed. Therefore, the circulating blown-out flow 502 rises along a part of the wall surface 22. When such a circulating blown-out flow 502 collides with the ceiling surface 24, it diffuses when flowing along the ceiling surface 24. Due to such diffusion, the speed of the circulating blown-out flow 502 decreases, so that the air volume of the induced flow 504 decreases. As a result, the amount of air sucked into the lining suction port 150 increases, and the wind speed distribution becomes smaller. In Modification 2, the purpose is to suppress the decrease in the wind speed distribution even when one blower 400 is installed. Here, the description will focus on the differences from the previous cases.

[0027] Figs. 6(a)-(c) show the configuration of the air supply system 1000. Fig. 6(a) is an upper perspective view of the toilet room 10, Fig. 6(b) is a lower perspective view of the toilet room 10, and Fig. 6(c) is a top view of the toilet room 10. One blower 400 is installed at the central portion in the direction along the wall surface 22 of the lining 100. On the ceiling surface 24, a plurality of diffusion suppression plates 600 protruding downward from the ceiling surface 24 are installed. Each diffusion suppression plate 600 has a plate shape and extends in a direction away from the wall surface 22 from the wall surface 22 side. Also, the plurality of diffusion suppression plates 600 are arranged along the wall surface 22. Further, the interval between two adjacent diffusion suppression plates 600 among the plurality of diffusion suppression plates 600 is made shorter than the length in the direction along the wall surface 22 of the lining 100. In particular, the interval is made shorter than the length in the direction along the wall surface 22 of the blower outlet 404.

[0028] Figs. 7(a)-(b) show the air flow by the air supply system 1000. Fig. 7(a) is a perspective view of the toilet room 10 when the diffusion suppression plates 600 are not provided. Therefore, Fig. 7(a) can be said to be a comparison target of this embodiment. The circulating blown-out flow 502 blown out from the blower outlet 404 rises along the wall surface 22 and then collides with the ceiling surface 24 and flows along the ceiling surface 24. When flowing along the ceiling surface 24, the circulating blown-out flow 502 diffuses.

[0029] Fig. 7(b) is a perspective view of the toilet room 10 when the diffusion suppression plates 600 are provided. The circulating blown-out flow 502 blown out from the blower outlet 404 rises along the wall surface 22 and then collides with the ceiling surface 24 and flows along the ceiling surface 24. When flowing along the ceiling surface 24, the circulating blown-out flow 502 passes between two adjacent circulating blown-out flows 502. Therefore, the diffusion of the circulating blown-out flow 502 is suppressed. When the diffusion is suppressed, the decrease in the speed of the circulating blown-out flow 502 is also suppressed, and the decrease in the air volume of the induced flow 504 is also suppressed. Thereby, the increase in the amount of air sucked into the lining suction port 150 is also suppressed, and the decrease in the wind speed distribution is suppressed.

[0030] Figs. 8(a)-(c) show the wind speed distribution by the air supply system 1000. Fig. 8(a) is a top view of the toilet compartment 10 when the diffusion suppression plate 600 is not provided, and Fig. 8(b) is a top view of the toilet compartment 10 when the diffusion suppression plate 600 is provided. These are the simulation calculation results showing the wind speed distribution [m / s] in the direction component of the lining suction port 150 at 30 cm above the floor surface 20 with the exhaust volume of the ventilation device set to a constant value. As shown in Fig. 8(c), the magnitude of the wind speed distribution is indicated by the shade of color, and the darker the color, the larger the wind speed distribution. As described above, by installing the diffusion suppression plate 600, the amount of air sucked into the lining suction port 150 decreases. Therefore, in Fig. 8(b), the wind speed distribution becomes larger compared to Fig. 8(a).

[0031] According to the present embodiment, in the configuration of conveying the air in the toilet compartment 10 sucked from the lining suction port 150 by the exhaust port direct duct 300, a blower 400 that blows air upward from the blower outlet 404 disposed above the lining suction port 150 is added, so that only the air below the toilet compartment 10 can be sucked into the lining suction port 150. Also, since only the air below is sucked into the lining suction port 150, an increase in the amount of air sucked into the lining suction port 150 can be suppressed. Further, since an increase in the amount of air sucked into the lining suction port 150 is suppressed, an increase in the exhaust volume of the toilet compartment 10 can be suppressed. Also, since an increase in the amount of air sucked into the lining suction port 150 is suppressed, a decrease in the speed of the air sucked into the lining suction port 150 can be suppressed. Further, since a decrease in the speed of the air sucked into the lining suction port 150 is suppressed, the odor on the floor surface 20 can be efficiently sucked.

[0032] In addition, since the blower 400 has a blower suction port 402 disposed above the lining suction port 150, the air above the toilet compartment 10 can be sucked into the blower 400. Also, since the blower 400 has a blower suction port 402 communicating with the outside of the toilet compartment 10, the air outside the toilet compartment 10 can be sucked into the blower 400. Further, since it is provided with a plurality of diffusion suppression plates 600 protruding downward from the ceiling surface 24, the diffusion of the circulating blown-out air flow 502 that has collided with the ceiling surface 24 can be suppressed. Also, since the diffusion of the circulating blown-out air flow 502 is suppressed, a decrease in the speed of the circulating blown-out air flow 502 can be suppressed. Also, since a decrease in the speed of the circulating blown-out air flow 502 is suppressed, a decrease in the air volume of the induced air flow 504 can be suppressed. Also, since a decrease in the air volume of the induced air flow 504 is suppressed, an increase in the amount of air sucked into the lining suction port 150 can be suppressed.

[0033] The outline of one aspect of the present disclosure is as follows. (Item 1) A lining (100) installed along the wall surface (22) of the toilet compartment (10), and a lining suction port (150) disposed on the front surface (110) of the lining (100) where the toilet is installed on the front side, An exhaust port direct duct (300) extending from the lining (100) to the ceiling surface (24) of the toilet compartment (10) and transporting the air of the toilet compartment (10) sucked into the lining (100) from the lining suction port (150) upward, A blower (400) having a blower outlet (404) disposed above the lining suction port (150) and blowing air upward from the blower outlet (404), A blower system (1000) comprising.

[0034] (Item 2) The blower system (1000) according to Item 1, wherein the blower (400) has a blower suction port (402) disposed above the lining suction port (150), and blows the air of the toilet compartment (10) sucked from the blower suction port (402) upward from the blower outlet (404).

[0035] (Item 3) The blower (400) has a blower suction port (402) communicating with the outside of the toilet room (10), and blows the air outside the toilet room (10) sucked from the blower suction port (402) upward from the blower outlet (404). The air supply system (1000) according to Item 1.

[0036] (Item 4) It further includes a plurality of diffusion suppression plates (600) protruding downward from the ceiling surface (24). Each of the plurality of diffusion suppression plates (600) extends in a direction away from the wall surface (22) from the wall surface (22) side. The plurality of diffusion suppression plates (600) are arranged along the wall surface (22). The distance between two adjacent diffusion suppression plates (600) among the plurality of diffusion suppression plates (600) is shorter than the length in the direction along the wall surface (22) of the lining (100). The air supply system (1000) according to any one of Items 1 to 3.

[0037] As described above, the present disclosure has been described based on the embodiments. These embodiments are illustrative, and it is understood by those skilled in the art that various modifications are possible for each component or combination of each processing process, and such modifications are also within the scope of the present disclosure.

Explanation of Reference Numerals

[0038] 10 Toilet room, 12 First side wall, 14 Second side wall, 16 Wall opening, 20 Floor surface, 22 Wall surface, 24 Ceiling surface, 100 Lining, 102 Hollow space, 110 Front surface, 120 Upper surface, 150 Lining suction port, 200 Toilet, 300 Exhaust port direct duct, 310 Exhaust port, 400 Blower, 402 Blower suction port, 404 Blower outlet, 410 Blower cover, 412 Blower cover opening, 414 First surface, 416 Second surface, 500 Circulation suction flow, 502 Circulation blowout flow, 504 Induced flow, 510 Exhaust flow, 600 Diffusion suppression plate, 1000 Air supply system.

Claims

1. A lining installed along the wall surface of a toilet room, and a lining suction port disposed on the front surface of the lining where a toilet bowl is installed on the front side, An exhaust port direct duct extending from the lining to the ceiling surface of the toilet room and transporting the air in the toilet room sucked into the lining from the lining suction port upward, A blower having a blower outlet disposed above the lining suction port and blowing air upward from the blower outlet, A ventilation system comprising the above.

2. The blower has a blower suction port disposed above the lining suction port, and the ventilation system according to claim 1, wherein the air in the toilet room sucked from the blower suction port is blown upward from the blower outlet.

3. The blower has a blower suction port communicating with the outside of the toilet room, and the ventilation system according to claim 1, wherein the air outside the toilet room sucked from the blower suction port is blown upward from the blower outlet.

4. The ventilation system further comprises a plurality of diffusion suppression plates protruding downward from the ceiling surface, Each of the plurality of diffusion suppression plates extends in a direction away from the wall surface from the wall surface side, The plurality of diffusion suppression plates are arranged along the wall surface, The ventilation system according to any one of claims 1 to 3, wherein the interval between two adjacent diffusion suppression plates among the plurality of diffusion suppression plates is shorter than the length in the direction along the wall surface of the lining.

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