JPH01234738A - Method for ventilating toilet - Google Patents

Abstract

PURPOSE:To enable an expansion of odor to be controlled by a method wherein a value of negative pressure within a toilet space is made different in dependence of a location in reference to a layout of an odor generating source, thereby an air stream is provided with a directional characteristic. CONSTITUTION:A setting of rank of bad odor of basins Bw, Bw', a urinal bowl Bs, a stool bowl Bd and a cleaning basin Sk shows an order of Sk>Bd> Bs>Bw>Bw'. Branch passages 2 to 7 are outputted to a ventilation port V below the bad odor generating sources Bw, Bs, Bd and Sk corresponding to each of piping units 10 to 15. Each of the branch pipings is combined with a negative pressure source 8, thereby suction pressures p2 to p7 may have a relation of p7>p6=p5=p4>p3>p2. With this arrangement, as schematically shown by a broken arrow, air streams f3-f5, f11-f13, f17-f19 and f23 directed toward each of the ventilation ports V are generated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ventilation method that takes into account toilet odors.

(Prior Art) When ventilating a toilet, it is necessary to take measures to prevent internal odors from escaping to the outside, and this is usually done by installing a plumbing unit installed in a given toilet space or a ventilation hole in the ceiling. By using this as a forced intake ventilation opening, the interior of the room is made to have a negative pressure with respect to the outside, thereby preventing the airflow generated during ventilation from going outside.

In adopting such a ventilation method, the interior of the toilet space has traditionally been regarded as a connected space,
The whole area was ventilated at approximately the same pressure.

(Problem to be solved by the invention) For this reason, the direction of airflow within the toilet space is fluid and undefined, except in the vicinity of each ventilation opening, and the type and layout of sanitary equipment can be a source of bad or strange odors. In addition, the normal distribution of odors, which actually differ greatly due to the presence of aroma sources, may be inadvertently disturbed during ventilation, and for example, the acrid odor from the cleaning sink will be forced toward the flush toilet or hand-washing area. It was undesirable because it was induced to diffuse, etc.
Also, when I tried to guide the fragrant scent from the washroom toward the toilet, I couldn't do it as expected.

The present invention was made to effectively solve the problems in the conventional toilet ventilation method, and its purpose is to stably control the distribution of odors in the toilet space during ventilation. To provide a way to ventilate the toilet.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides directionality to the airflow by varying the magnitude of negative pressure in the toilet space depending on the layout of the odor source. The spread of odors was controlled by

(Function) According to the above means, a pressure field that rises and falls depending on the layout of the odor generation source is generated in the toilet space, and the air moves along the gradient, so the airflow has directionality. It is possible to control the spread of odor associated with this. In this respect, the layout of the odor source is unlikely to undergo any essential changes even when the toilet is ventilated, and therefore it is possible to control the odor distribution stably.

(Embodiments) Hereinafter, some preferred embodiments of the present invention will be described based on the accompanying drawings.

First, the overall configuration of a toilet to which the ventilation method according to the first embodiment is applied will be described with reference to FIGS. 1 and 2.

FIG. 1 is a state view of the toilet, and FIG. 2 is a sectional view taken along line 2-2 in FIG.

In the figure, T represents the entire toilet, and the toilet T is constructed by further constructing wall panels in a given indoor space sb to form a peripheral wall Ws, providing a floor Ft with a waterproof structure, and installing a system (not shown). It is a so-called prefabricated type in which the required toilet space St is defined by suspending the ceiling, and due to the flat partition wall Np in the center of Fig. 1 and the box-shaped partition unit with passage Cp (Up), the space St is connected to the toilet space on the left. The space S1 is divided into a flush toilet S2 and a cleaning sink S3 on the right, and the flush toilet S2 is separated from the urinal S2a by booth panels B1 to B7.
In Figure 0, which is divided into three-speed toilets S2b, S2c, and S2d, Dr... is the door, EP is the entrance/exit passage for the toilet T, and Wp' is the partition between the passage EP and the washroom S1. It is a partition wall.

Above hand washing area SL, urinal S2a, toilet S2b~S2d
In the cleaning sink S3, a piping unit with a counter-type washbasin Bw is installed along the wall surface of the peripheral wall Ws that defines this.10. Piping unit 11 with urinal Bs, piping unit 12, 13 with toilet Bd, piping unit with urinal Bd and washbasin Bw') 14, piping unit 15 with cleaning sink Sk are installed, and piping unit 12 with toilet Bd is installed, and piping unit 15 with cleaning sink Sk is installed. In Figure 0, 19 is a fragrance pipe, which is connected to appropriate piping units (16, 17, and 18) through which regular piping systems (not shown), such as water pipes, gray water pipes, ventilation pipes, and waste water pipes, etc. are passed. It is a vase in which a flower is hidden, that is, a source of fragrance.

In addition, the wash basins Bw, Bw', urinals Bs, and toilet bowls Bd
And the cleaning sink Sk is ranked as a source of bad odor (or strange odor) in a linear order: S k > B d > B 5 > BW , Bw', corresponding spaces S l , S2 ( S2a.

If S2b, S2c, 52d), and S3 are arranged in order of the strength of the bad odor that normally lingers in the air, the result is as follows: S 3 >
32 (S2d≧52cm52b)S2a)>S
1 or more, in this example, each piping unit"/t1
Through 0-18, along the toy 1 Ws, unit) 1
Extend the exhaust path l from 0 to 15, unit) to-15
In each -, the corresponding malodor source Bw..., BS.
..., Bd..., #I below Sk! Branches 2..., 3..., 4, 5, 6.7 are brought out to the air opening V..., and
In combination with the negative pressure source 8 (suction pressure pi) of the outdoor sb in the unit 15, a forced ventilation system 1 to 8 is configured to ventilate the interior St of the toilet T by bringing it into a state of more negative pressure than the exterior sb, and further , each piping unit) 1 among the piping 1a-1i of the exhaust path 1 passing through 10 to 18, the connecting piping unit) 1
The flow path resistances of 1g to 11 among 6 to 18 are set relatively thick, and the suction pressures p2 to p7 (-
The following relationship holds between p7>p6=p5=p4>p3>p2 −”−−p?(冨−pi)(−pe−−p5 snow−p4(
-p3 (-p2 means these suction pressures p2~p
Toilet space St due to 7 and outdoor pressure (atmospheric pressure pO)
Each location E p , S 1 , S2 (S2a-
32d).

The average pressures Pe, PL, P2 (P
a ~ Pd), let P3 approximately satisfy the law relationship = (po
p) Pearl > P 2 (Pa) Pb=Pc-Pd) > P 3
That is, each location Ep with respect to the outdoor pressure pO.

S 1 , S2 (S2a, S2b, S2c,
52d), Negative pressure of S3 Te -Ne=Pe-pO.

-N1=Pl-po.

-N2=P2-p.

(-Na-Pa-po, -NbmPb-po, -Nc-
Pc-pO).

-N3=P3-pO in the following relationship: Ne<N1<N2 (Na<Nb-Nc
= Nd) < N 3 As a result, as shown schematically by the broken line arrows in FIG. 1, airflows f3 to f5 . fil ~f13. f17-f19
．． f23, and at other locations, the airflow fON flows steadily from no odor to one that gradually becomes stronger.
f2. f6~flo, f14~f16° f20~f22
I'm trying to get it.

According to this embodiment, the bad odor is not carried along from the stronger odor to the weaker odor.

Moreover, the fragrance from the vase 19 can be effectively introduced and diffused in the direction of the stronger odor.

In the above embodiment, a pressure field having a desired negative pressure gradient is obtained by adjusting the suction pressure of the ventilation port V, but the pressure field may be formed in another way, and the specifics thereof are as follows. An example will be explained below based on FIGS. 3 and 4.

FIGS. 3 and 4 are similar views to FIG. 1 relating to different embodiments, and the same parts as in the previous embodiment are designated by the same reference numerals.

The toilet T in Figure 3 is a hand washing area 31. Exhaust passages 20, 21, 22, and 23 are provided in the urinal S2a, the toilet S2b-S2d, and the cleaning sink S3, respectively, to form branch passages 2..., 3.
..., combined with 4 to 6.7, and a separate fan 2
Emissions per unit floor area vl, va, v for each location where 4, 25, 26.27 is installed and covered by it.
Adjust so that b and v3 satisfy the following relationship: vl<va<vb<v3 As a result, the pressure fields Pe, P1, P2 (Pa-Pd),
P3 and negative pressure relationship Ne < N 1 < N 2 (Na < Nbl * Nc-
Nd) <N 3.

On the other hand, the toilet T" shown in FIG. The negative pressure relationship Ne'<Nl'<Na'<Nb'=Nc'=Nd'<N3 is established.

It is clear that the same effects as described above can be obtained in both of the toilets T' and T''.

In addition, in the above, the ventilation opening may be provided in the ceiling, floor, side wall, or other appropriate location.

Preferably, a fragrance source is also placed in the urinal, with a stronger scent than the fragrance source in the hand-washing area.

(Effects of the Invention) As is clear from the above explanation, according to the present invention, the magnitude of the negative pressure in the toilet space is varied depending on the location according to the layout of the odor generation source, thereby providing directionality to the airflow. Since the spread of the odor is controlled by this, the distribution state of the odor can be stably controlled when the toilet is ventilated.

[Brief explanation of the drawing]

The drawings show a toilet to which an embodiment of the present invention is applied, and FIG. 1 shows the shape of the toilet, and FIG.
The two-line sectional view, FIG. 3, and FIG. 4 are similar to FIG. 1 according to different embodiments. In addition, in the figure, 1.20 to 23 are exhaust paths, 2 to 7 are branch paths, and 8
is a negative pressure source, 24 to 27 are fans, 10 to 18 are piping units, 19 is a flower vase, fO-f23 is an air flow, Ep is an inlet passage, N1-N3. Na-Ne is negative pressure, Pi ~P3. P
a-Pe is pressure, PO is atmospheric pressure, p1 to P7 are suction pressures, St is hand washing area, S2 is flush toilet, S2a is urinal, S2b to S2d is toilet, S3 is cleaning sink, Sb
St represents the outdoor space, St represents the toilet space, T, T', and T'' represent the prefabricated toilets, and ■ represents the ventilation opening.

Claims (13)

[Claims] (1) In a toilet ventilation method that creates negative pressure inside the toilet space from the outside to prevent odors from escaping to the outside and provide ventilation, the magnitude of the negative pressure inside the toilet space is . A method for ventilating a toilet, characterized in that the spread of odor is controlled by giving directionality to airflow that varies depending on the location, depending on the layout of the source of the odor. (2) The toilet ventilation method according to claim 1, wherein the magnitude of the negative pressure is varied depending on the type of the odor source. (3) The toilet ventilation method according to claim 2, wherein the odor is a bad odor or a strange odor. (4) The toilet ventilation method according to claim 1, wherein the odor is an aromatic odor. (5) A claim characterized in that a forced ventilation port is provided in the toilet space, and the suction pressure of the ventilation port is varied according to the distribution state of the odor, thereby producing a difference in the negative pressure. The toilet ventilation method described in item 1. (6) The method for ventilating a toilet according to claim 5, wherein the difference in the suction pressure is caused by flow path resistance of an exhaust path connecting the ventilation opening. (7) The method for ventilating a toilet according to claim 6, characterized in that a piping unit is arranged in series along a wall surface defining the toilet space, and the exhaust passage is passed through the piping unit. (8) A claim characterized in that a forced ventilation port is provided in the toilet space, and the intake amount of the ventilation port is varied according to the distribution state of the odor, thereby producing a difference in the negative pressure. The toilet ventilation method described in item 1. (9) The toilet ventilation method according to claim 3, wherein the toilet space is provided with a flush toilet and a cleaning sink, and the latter is made to have a more negative pressure than the former. (10) The toilet ventilation method according to claim 9, wherein the flush toilet is composed of a toilet and a urinal, and the pressure in the former is made more negative than in the latter. (11) The toilet ventilation method according to claim 4, wherein the toilet space is provided with a hand washing area and a flush toilet, and the latter is made to have a more negative pressure than the former. (12) The toilet ventilation method according to claim 3, characterized in that a forced ventilation port is arranged in the area where the odor is strongest. (13) The toilet ventilation method according to claim 4, characterized in that a forced ventilation port is arranged in the area where the odor is the weakest.