JPWO2020100891A1 - Drainage system - Google Patents

Abstract

The drainage system is a siphon drainage system that includes a horizontal pulling pipe that extends laterally and allows drainage from water supply equipment to flow, and a vertical pipe that is connected to the downstream side of the horizontal pulling pipe and extends vertically. It has a pipe, a dirt detection device that detects the internal state of the siphon drain pipe and outputs the state detection data, and a notification device that notifies the internal state of the siphon drain pipe based on the state detection data.

Description

The present disclosure relates to a drainage system with a siphon drainage pipe.

Conventionally, in drainage facilities such as condominiums, dirt generated when living in the drainage pipe is accumulated, and if left unattended, the pipe is clogged and drainage cannot be performed.
Therefore, it is necessary to remove the dirt before the clogging occurs. Therefore, high-pressure cleaning is carried out regularly (1-2 times / year).
In conventional drainage facilities, drainage is performed by grading a large-diameter drainage pipe, so that the inside of the pipe does not fill up and local dirt is inevitably accumulated.
Regular inspections and cleaning are essential as the drains need to be cleaned before they become clogged. For example, when inspecting and cleaning an apartment, it is necessary to adjust the schedule of the residents. In addition, since the cleaning worker performs cleaning indoors, the resident needs to wait at home, which imposes a mental burden on the resident.

In recent years, a siphon drainage system has been used in which drainage is performed with a small-diameter drainage pipe using siphon force.
In the siphon drainage system, the drainage discharged from the water supply equipment flows into the siphon drainage pipe and fills the horizontal pulling pipe forming the horizontal portion of the siphon drainage pipe and the vertical pipe forming the hanging part of the siphon drainage pipe. Then, when the vertical pipe of the siphon drainage pipe is filled with drainage, the drainage in the vertical pipe falls due to gravity, and a suction force corresponding to the water head difference in the vertical pipe, that is, a siphon force is generated inside the horizontal pulling pipe. The drainage in the horizontal pulling pipe is sucked toward the vertical pipe by the siphon force, becomes a so-called full flow in which the inside of the siphon drainage pipe is filled with the drainage, and flows down in the siphon drainage pipe.

Originally, the siphon drainage system has a faster drainage flow rate than the normal drainage system, and since it flows through the pipe with full water, it is difficult for dirt to adhere to the inside of the pipe, and local dirt like the conventional drainage pipe does not occur, so cleaning is done. It has the characteristic that it does not have to be done (in other words, "cleaning-less"). However, just in case, in such a siphon drainage system, a method of providing an opening accessible to the inside of the pipe from the outside and cleaning the inside of the pipe is disclosed (for example, Japanese Patent Application Laid-Open No. 2018-025078). See Gazette). In the siphon drainage system, it is possible to clean the inside of the pipe using such a mechanism.

However, depending on the use of the siphon drainage system, it is assumed that dirt inside the pipe may adhere over time. A characteristic of dirt on the siphon drainage pipe is that thin film-like dirt accumulates uniformly throughout the drainage pipe.
However, it is necessary for the cleaning worker to visually check the inside of the pipe regularly to determine when to clean the pipe, and the frequency of the checking work is less than that of the conventional drainage system, but it takes time and effort.

Further, in the siphon drainage system, when air flows into the drainage, the flow velocity in the siphon drainage pipe decreases due to factors such as the drainage not becoming full. When the flow velocity of drainage decreases in the siphon drainage pipe, dirt easily adheres to the inside of the pipe. Whether or not air is flowing into the drainage must be checked, for example, by removing the pipe and visually checking the drainage discharged from the siphon drainage pipe, which takes time and effort.

As described above, in the conventional siphon drainage system, it takes time and effort to check the state inside the pipe, and there is room for improvement.

In consideration of the above facts, the present disclosure aims to provide a drainage system capable of easily knowing the internal state of the siphon drainage pipe.

The drainage system according to the first aspect includes a horizontal pulling pipe extending in the lateral direction and flowing drainage from a water supply device, and a vertical pipe connected to the downstream side of the horizontal pulling pipe and extending in the vertical direction. A siphon drainage pipe including the siphon drainage pipe, an in-pipe state detection device that detects the internal state of the siphon drainage pipe and outputs state detection data, and an internal state of the siphon drainage pipe based on the state detection data. It has a notification device for notifying.

In the drainage system according to the first aspect, the in-pipe state detection device detects the internal state of the siphon drainage pipe and outputs the state detection data corresponding to the state in the pipe.
The notification device notifies the internal state of the siphon drainage pipe based on the state detection data.
This makes it possible to know the internal state of the siphon drainage pipe without removing the pipe.

The drainage system according to the second aspect is the drainage system according to the first aspect, in which the in-pipe state detection device measures the flow velocity of the fluid flowing inside the siphon drainage pipe.

In the drainage system according to the second aspect, the in-pipe state detection device can measure the flow velocity of the fluid flowing inside the siphon drainage pipe. For example, if the flow velocity is measured regularly and the flow velocity is higher or lower than when it is new (for example, during construction), dirt is accumulated in the pipe, and air flows into the drainage flowing in the pipe. It is possible to know the state inside the pipe, such as when it is being used.

The drainage system according to the third aspect is the drainage system according to the first aspect, in which the in-pipe state detecting device detects dirt on the inner wall surface of the siphon drainage pipe.

In the drainage system according to the third aspect, the pipe internal state detection device detects dirt on the inner wall surface of the siphon drainage pipe. Therefore, it is possible to know the state of dirt on the siphon drainage pipe.

The drainage system according to the fourth aspect is the drainage system according to the second or third aspect, and the in-pipe state detection device is provided in the horizontal pulling pipe.

In the drainage system according to the fourth aspect, since the in-pipe state detecting device detects the internal state of the horizontal pulling pipe, the internal state of the horizontal pulling pipe can be known.

The drainage system according to the fifth aspect is the drainage system according to any one of the second to fourth aspects, wherein the horizontal pulling pipe has a main body portion having a pipeline through which drainage flows. A cleaning port formed in the main body and a cleaning section provided with a closing member for closing the cleaning port are provided, and the in-pipe state detection device is provided in the cleaning section.

In the drainage system according to the fifth aspect, the state inside the pipe can be known by the pipe state detection device provided in the cleaning portion of the horizontal pulling pipe. In addition, the closing member can be removed, and dirt inside the pipe can be visually observed from the cleaning port.

The drainage system according to the sixth aspect is the drainage system according to the third aspect or the fourth aspect. It is configured to include a light source that irradiates light from the outside of the tube to the inside of the tube through a sex window, and a light receiving element that detects the light reflected on the inner wall surface of the tube.

In the drainage system according to the sixth aspect, the light source can irradiate light from the outside of the pipe to the inside of the pipe through the light transmitting window.
The light transmitted through the light transmitting window is reflected by the inner wall surface of the pipe, and the amount of light reflected by the inner wall surface of the pipe (in other words, the reflected light) can be detected by the light receiving element.
For example, since the light reflectance differs between the clean inner wall surface of the pipe and the dirty inner wall surface of the pipe, the presence or absence of dirt on the inner wall surface of the horizontal pipe and the amount of dirt are known from the amount of light detected by the light receiving element. be able to.

The drainage system according to the seventh aspect is the drainage system according to the third aspect or the fourth aspect. It is configured to include a light transmitting window, a light source that irradiates light so as to pass through the pair of light transmitting windows, and a light receiving element that detects the light transmitted through the pair of light transmitting windows. There is.

In the drainage system according to the seventh aspect, the light source can irradiate light so as to pass through the pair of light transmitting windows.
The light receiving element can detect the amount of light transmitted through the pair of light transmitting windows (in other words, transmitted light).
For example, since the light transmittance differs between a clean light transmitting window and a dirty light transmitting window, the inner wall surface of the horizontal pulling tube provided with the light transmitting window depends on the amount of light detected by the light receiving element. It is possible to know the presence or absence of dirt and the amount of dirt.

In the drainage system according to the eighth aspect, in the drainage system according to the sixth or seventh aspect, the inner wall surface of the light transmitting window is set to have the same surface roughness as the inner wall surface of the horizontal pulling pipe. ing.

In the drainage system according to the eighth aspect, since the inner wall surface of the light transmissive window is set to have the same surface roughness as the inner wall surface of the horizontal pulling pipe, the condition for adhering dirt to the light transmissive window (as an example). The ease with which dirt adheres) can be set in the same manner as for the horizontal pulling pipe.
As a result, the amount of dirt adhering to the light-transmitting window can be made equal to the amount of dirt adhering to the inner wall surface of the horizontal pulling tube, and the amount of dirt adhering to the light-transmitting window can be determined from the amount of dirt adhering to the light-transmitting tube. It is possible to accurately know the amount of dirt adhering to the inner wall surface of the pipe.

The drainage system according to the ninth aspect is the drainage system according to the fifth aspect. It is configured to include a light source that irradiates light toward the inside of the tube and a light receiving element that detects the light reflected on the inner wall surface of the tube.

In the drainage system according to the ninth aspect, the light source can irradiate light from the outside of the pipe to the inside of the pipe through the light transmitting window provided in the cleaning portion.
The light transmitted through the light transmitting window is reflected by the inner wall surface of the pipe, and the amount of light reflected by the inner wall surface of the pipe (in other words, the reflected light) can be detected by the light receiving element.
For example, since the light reflectance differs between the clean inner wall surface of the pipe and the dirty inner wall surface of the pipe, the presence or absence of dirt on the inner wall surface of the pipe and the amount of dirt can be known from the amount of light detected by the light receiving element.

The drainage system according to the tenth aspect is the drainage system according to the fifth aspect, wherein the internal state detection device includes a pair of light transmitting windows provided at positions facing each other provided in the cleaning unit. It is configured to include a light source that irradiates light so as to pass through the pair of light transmitting windows, and a light receiving element that detects the light that has passed through the pair of light transmitting windows.

In the drainage system according to the tenth aspect, the light source can irradiate light so as to pass through a pair of light transmitting windows provided in the cleaning unit.
The light receiving element can detect the amount of light transmitted through the pair of light transmitting windows (in other words, transmitted light).
For example, since the light transmittance differs between a clean light-transmitting window and a dirty light-transmitting window, the presence or absence of dirt on the inner wall surface of the pipe of the cleaning part and the dirtiness are determined by the amount of light detected by the light receiving element. You can know the amount.

The drainage system according to the eleventh aspect includes a server connected to the pipe state detection device and processing the state detection data in the drainage system according to any one of the first to tenth aspects. ing.

In the drainage system according to the eleventh aspect, the server can be made to perform various processes by using the state detection data.

In the drainage system according to the twelfth aspect and the drainage system according to one of the first to tenth aspects, the in-pipe state detection device is an external server installed outside the system for processing the state detection data. Is equipped with a transmission device for transmitting the state detection data.

In the drainage system according to the twelfth aspect, the state detection data can be transmitted to the outside installed outside the system by the transmission device.

As described above, the drainage system of the present disclosure has an excellent effect that the internal state of the siphon drainage pipe can be easily known.

It is a side view which shows the whole structure of the siphon drainage system which concerns on 1st Embodiment. It is a perspective view which made a part which shows the joint with a cleaning port in the cross section. It is an exploded perspective view which made a part which shows the joint with a cleaning port in the cross section. It is an enlarged cross-sectional view which shows the periphery of the dirt detection device of a core. It is sectional drawing which shows the horizontal pulling pipe member to which an electrode is attached. It is sectional drawing which shows the horizontal pulling pipe member which attached the liquid level level sensor. FIG. 5 is a perspective view showing a part of a joint with a cleaning port used in the siphon drainage system according to the second embodiment as a cross section. It is sectional drawing which shows the horizontal pulling pipe member which attached the dirt detection apparatus which concerns on 3rd Embodiment. It is sectional drawing which shows the horizontal pulling pipe member which attached the dirt detection apparatus which concerns on 4th Embodiment. It is sectional drawing which shows the horizontal pulling pipe member which attached the dirt detection apparatus which concerns on 5th Embodiment. It is sectional drawing which shows the horizontal pulling pipe member which attached the ultrasonic flow meter used for the siphon drainage system which concerns on 6th Embodiment.

(First Embodiment)
The siphon drainage system 10 will be described in the first embodiment of the present invention according to FIGS. 1 to 6. FIG. 1 is a schematic view showing the overall configuration of the siphon drainage system 10. The siphon drainage system 10 according to the present embodiment is a drainage system that efficiently discharges drainage from a water supply device by utilizing siphon force.

(Outline of siphon drainage system)
The siphon drainage system 10 of the present embodiment is used in an apartment house composed of a plurality of floors, and includes a drainage stand 12 for draining drainage downward as shown in FIG. The drainage pipe 12 extends in the vertical direction (in other words, in the vertical direction) of the apartment house and penetrates the floor slab 14 on each floor of the apartment house. The drainage pipe 12 is arranged outside the outer wall 16 that partitions the inside and outside of the dwelling unit, for example, inside the meter box 18. The siphon drainage system of the present embodiment is preferably used for an apartment house, but can also be used for a detached house, a factory, or the like other than the apartment house.

A water supply device 20 is provided in each house on each floor of the apartment house. The water supply device 20 is, for example, a kitchen sink, and a disposer 22 and a drain trap 24 are connected to the downstream side in the drain direction. A first L-shaped piping member 26 bent in an L shape is arranged on the downstream side of the drain trap 24 in the drainage direction. The first L-shaped piping member 26 includes a vertical portion 26A connected to the drain trap 24 and extending in the vertical direction, a horizontal portion 26B arranged horizontally on the floor slab 14 and extending in the horizontal direction, and a vertical portion 26A and a horizontal portion. It is configured to include a curved portion 26C connecting the 26B.

On the downstream side of the first L-shaped piping member 26 in the drainage direction, a horizontal pulling pipe member 28 arranged on the floor slab 14 and extending in the horizontal direction, in other words, in a direction perpendicular to the vertical direction is arranged. The first L-shaped piping member 26 and the horizontal pulling pipe member 28 are connected via a joint 30.

A first connecting portion 60 of a cleaning portion 50, which will be described later, is connected to the downstream side of the horizontal pulling pipe member 28 in the drainage direction via a joint 32. A second L-shaped piping member 34 bent in an L shape is arranged on the downstream side of the cleaning unit 50.

The second L-shaped piping member 34 includes a horizontal portion 34A arranged on the floor slab 14 and extending in the horizontal direction, a vertical portion 34B extending in the vertical direction, and a curved portion 34C connecting the horizontal portion 34A and the vertical portion 34B. It is configured. In the second L-shaped piping member 34, the horizontal portion 34A is connected to the second connecting portion 62 of the cleaning portion 50.

A vertical pipe member 36 extending in the vertical direction is arranged on the downstream side of the second L-shaped pipe member 34 in the drainage direction. The end of the vertical pipe member 36 on the downstream side in the drainage direction is connected to the vertical portion 34B of the second L-shaped pipe member 34 via a joint 38. The end portion of the vertical pipe member 36 on the downstream side in the drainage direction is connected to the merging joint 40 attached to the intermediate portion of the drainage stand pipe 12 via the joint 42.

In the present embodiment, the piping portion horizontally arranged on the floor slab 14, specifically, the horizontal portion 26B of the first L-shaped piping member 26, the horizontal pulling pipe member 28, the cleaning portion 50, and the second L-shaped piping member. The horizontal portion 34A of the 34 is the horizontal pulling pipe 46 of the siphon drainage pipe 44, and the vertical portion 34B of the second L-shaped piping member 34 and the vertical pipe member 36 are the vertical pipe 48 of the siphon drainage pipe 44.
That is, the cleaning unit 50 constitutes a part of the horizontal pulling pipe 46.

(Coupling configuration)
As shown in FIGS. 2 and 3, the cleaning portion 50 includes a main body portion 52, a core 54 as a closing member, and a lid 56. The main body 52, the core 54, and the lid 56 of this embodiment are made of synthetic resin.

The main body 52 includes a tubular main body 58 formed with a constant diameter in the axial direction. In the main body tube portion 58, a first connecting portion 60 is integrally formed on one end side in the axial direction, and a second connecting portion 62 is integrally formed on the other end side in the axial direction.

The first connecting portion 60 is formed to have a diameter larger than the diameter of the main body pipe portion 58, and a joint 32 (see FIG. 1) can be inserted. The second connecting portion 62 is formed to have a diameter larger than the diameter of the main body pipe portion 58, and the horizontal portion 34A (see FIG. 1) of the second L-shaped piping member 34 can be inserted. In the cleaning unit 50 of the present embodiment, the first connection portion 60 and the second connection portion 62 have the same shape, and the inner diameter of the first connection portion 60 and the inner diameter of the second connection portion 62 have the same inner diameter.

A side pipe portion 64 extending in a direction orthogonal to the axial direction of the main body pipe portion 58 is integrally provided at the central portion in the axial direction of the main body pipe portion 58. In the siphon drainage system 10 of the present embodiment, the side pipe portion 64 is located above the main body pipe portion 58, and the axial direction of the side pipe portion 64 is the vertical direction. The diameter of the side pipe portion 64 is formed to be larger than the diameter of the main body pipe portion 58.

A partition wall 66 is provided between the side pipe portion 64 and the main body pipe portion 58. The partition wall 66 is opened with a cleaning port 68 that communicates the inside of the side pipe portion 64 and the inside of the main body pipe portion 58.

The cleaning port 68 is formed elongated along the axial direction of the main body pipe portion 58, and is formed upward from the central axis of the main body pipe portion 58.

As shown in FIG. 3, in the inner peripheral portion of the side pipe portion 64, an annular step portion 70 protruding toward the inner peripheral side is formed on the partition wall 66 side. On the other hand, on the outer peripheral portion of the side pipe portion 64, a male screw 72 is formed on the end side of the side pipe portion 64, and an annular groove 74 is formed on the main body pipe portion 58 side of the male screw 72. .. An O-ring 76 is mounted on the annular groove 74.

As shown in FIG. 2, a core 54 is inserted inside the side tube portion 64. The core 54 includes a cylindrical portion 78 to be inserted inside the side pipe portion 64, and a cleaning port closing portion 80 fitted to the cleaning port 68 is integrally formed with the cylindrical portion 78 at one end in the axial direction of the cylindrical portion 78. It is formed.

As shown in FIG. 3, the cylindrical portion 78 is formed with an annular groove 82 on the outer peripheral portion on the cleaning port closing portion 80 side, and the O-ring 84 is mounted on the annular groove 82. As shown in FIG. 2, when the core 54 is inserted inside the side tube portion 64, the O-ring 84 comes into contact with the inner peripheral portion of the side tube portion 64, and the core 54 and the side tube portion 64 come into contact with each other. Seal the gap between them.

The cleaning port closing portion 80 is formed with a curved surface 86 continuous with the inner peripheral surface 58A of the main body pipe portion 58. The radius of curvature d of the curved surface 86 is the same as the radius 1 / 2D of the inner peripheral surface 58A of the main body pipe portion 58.

A female screw 88 screwed into the male screw 72 of the side tube portion 64 and a contact portion 90 in contact with the O-ring 76 of the side tube portion 64 are formed on the inner peripheral portion of the lid 56. When the lid 56 is attached to the side tube portion 64, the O-ring 76 of the side tube portion 64 contacts the contact portion 90 of the lid 56 and seals the gap between the side tube portion 64 and the lid 56.

As shown in FIG. 2, when the core 54 is inserted into the side pipe portion 64 so that the cleaning port closing portion 80 fits into the cleaning port 68 and the lid 56 is attached to the side pipe portion 64, the core 54 is partitioned. It is sandwiched between the wall 66 and the lid 56, and the inner peripheral surface 58A of the main body pipe portion 58 and the curved surface 86 of the core 54 are connected without a step.

(Dirt detection device)
As shown in FIGS. 2 and 3, the cleaning unit 50 of the present embodiment is provided with a dirt detecting device 100 as an example of the in-pipe state detecting device in the core 54. A through hole 102 that communicates the curved surface 86 and the outer surface on the opposite side of the curved surface 86 is formed in the cleaning port closing portion 80 of the core 54, and the through hole 102 is a window glass made of a transparent material. 104 is attached. In the cleaning portion 50 of the present embodiment, a portion other than the window glass 104 is formed of an opaque synthetic resin (hard vinyl chloride or the like).
The inner surface of the window glass 104 and the curved surface (in other words, the inner wall surface of the pipeline) 86 are connected without a step so that foreign matter in the drainage does not get caught in the through hole 102 or the edge of the window glass 104. There is.

On the outer surface of the window glass 104, a reflection type optical sensor 106 including a light source and a light receiving element (not shown) is provided.
As shown in FIG. 4, the reflection type optical sensor 106 irradiates light from the light source toward the window glass 104, and the dirt 108 adhering to the inner surface of the window glass 104 (in other words, the inner peripheral surface of the conduit). The reflected light, that is, the reflected light is received by the light receiving element. The light receiving element transmits the light amount data of the incident light to the notification device 110. The light intensity data can be transmitted to the notification device 110 by wire or wirelessly, for example.

As shown in FIG. 1, the reflection type optical sensor 106 is connected to a notification device 110 provided in the house.
The notification device 110 has a built-in computer 111 that processes light amount data and the like, and is provided with a warning lamp 112 that notifies the dirt.

As shown in FIG. 5, a pair of electrodes 114 are attached to the lower side of the horizontal pulling pipe member 28 with a gap. The pair of electrodes 114 are connected to the notification device 110, and a predetermined voltage set in advance can be applied to the pair of electrodes 114.

When a voltage is applied to the pair of electrodes 114 and a current flows between the electrodes, the notification device 110 determines that drainage is accumulated inside the horizontal pulling pipe member 28, and the current flows between the electrodes. If not, it can be determined that the drainage does not stay inside the horizontal pulling pipe member 28.

(Action, effect)
Next, the operation and effect of the siphon drainage system 10 of the present embodiment will be described.
(1) Does the notification device 110 apply a voltage to the pair of electrodes 114 at a predetermined time zone set in advance, for example, once a day, and whether the drainage w stays inside the horizontal pulling pipe member 28? Judge whether or not.

(2) When it is determined that the drainage w is retained in the horizontal pulling pipe member 28, the application of the voltage is stopped and the voltage is applied again after the elapse of a predetermined time set in advance, or the voltage is continuously applied. Is applied, and light is not emitted from the light source until it is determined that no current flows between the pair of electrodes 114, that is, it is determined that the drainage w does not stay inside the horizontal pulling pipe member 28.

(3) When it is determined that no current flows between the pair of electrodes 114, the notification device 110 irradiates light from the light source of the reflection type optical sensor 106. Then, the light receiving element of the reflection type optical sensor 106 outputs the light amount data of the incident reflected light to the notification device 110.

(4) Here, when the dirt 108 is not attached to the window glass 104 or the dirt 108 is attached little, the amount of reflected light is small and the amount of the dirt 108 attached to the window glass 104 is large. Increases the amount of reflected light.
Therefore, the notification device 110 inputs the light amount data of the reflected light from the light receiving element, and when the light amount of the reflected light exceeds a preset threshold value, determines that some dirt is attached, and the warning lamp 112. Turns on or blinks. As a result, the user can easily know whether or not the inner wall surface of the siphon drainage pipe 44 is dirty by looking at the warning lamp 112 in the house without visually observing the inner wall surface of the pipe.

If the amount of light is measured while the drainage is flowing, the amount of light may not be stable due to the influence of foreign matter moving in the drainage. Therefore, in order to prevent the influence of foreign matter moving in the drainage, it is preferable to measure the amount of light when the drainage is not flowing, and the amount of light is not in contact with the window glass 104. It is preferable to measure.

(Cleaning of siphon drain pipe)
In the siphon drainage system 10 of the present embodiment, the siphon drainage pipe 44 can be cleaned as follows.
When cleaning the inside of the siphon drain pipe 44, the drainage from the water supply device 20 is stopped, the lid 56 is removed from the cleaning unit 50 as shown in FIG. 3, and the core 54 is taken out from the inside for cleaning. Exposing the mouth 68. By exposing the cleaning port 68, dirt 108 in the pipe can be visually observed from the cleaning port 68.

Then, the cleaning nozzle (not shown) of the cleaning machine is inserted into the siphon drain pipe 44 from the cleaning port 68, and the inside of the siphon drain pipe 44 is moved while water is ejected from the cleaning nozzle. As a result, the inside of the siphon drain pipe 44 is cleaned, and dirt 108 can be removed.

In the present embodiment, the presence or absence of drainage inside the horizontal pulling pipe member 28 is detected depending on whether or not a current flows between the electrodes 114, but as shown in FIG. 6, the upper part of the horizontal pulling pipe member 28 It is also possible to provide an ultrasonic level sensor 116 and transmit ultrasonic waves directly underneath to detect the presence or absence of drainage w.

In the present embodiment, it is possible to know whether or not the inner wall surface of the siphon drain pipe 44 is dirty by looking at the warning lamp 112, but when the inner wall surface of the pipe is dirty, the inner wall surface of the pipe is displayed on the liquid crystal display plate or the like. A message indicating that it is dirty may be displayed, or a buzzer or the like may be sounded.

Further, in the present embodiment, the notification device 110 has a built-in server (for example, a computer) 111 that processes light amount data, but outside the house, for example, a condominium management room, a house or condominium management company, and house maintenance. The light amount data may be transmitted to an external server 113 (see FIG. 1) provided in a maintenance company, a drainage facility cleaning company, or the like, and the light amount data may be processed by the external server 113. In this case, the notification device 110 in the house is provided with a transmitter 115 and a receiver 116 for transmitting and receiving data.

By transmitting the light intensity data or the like to the external server 113 and processing the external server 113 in this way, the cyber 111 is not required for the notification device 110 in the house, and the notification device 110 can be simplified. In addition, since the amount of light data transmitted from a house is very light, for example, LPWA (Low Power Wide Area: power consumption) can be used without using a high-speed communication line such as a LET line as a communication device for remote monitoring. Other communication methods such as (communication method that realizes long-distance communication by suppressing) can be utilized.
When dirt is detected on the external server 113 side, a signal may be transmitted from the external server 113 side to the notification device 110 in the house to turn on the warning lamp 112. Further, the notification device 110 does not have to be provided in the house, and for example, an external server 113 may be connected to a terminal provided outside the house to display a message that the inner wall surface is dirty on the screen of the terminal.

Since the siphon drainage pipe 44 is less likely to get dirty than the conventional inclined drainage pipe, it is not necessary to check the light intensity data at all times. For example, the siphon drainage pipe 44 is checked once a day to a week. You may. Then, by confirming the change over time of the dirt, it becomes possible to calculate the accumulation of the dirt. This makes it possible to grasp in advance, for example, the day when the amount of dirt reaches the threshold value (for example, the day when cleaning is performed) before the amount of dirt exceeds the threshold value.

Therefore, if the light intensity data is transmitted to an external server, even if the resident does not notice the dirt notification, the contractor, for example, the condominium management room, the house or condominium management company, and the house maintenance can be performed. A maintenance company, a drainage cleaning company, etc. can grasp the state of dirt. Therefore, the resident does not miss the cleaning time.

Further, in the siphon drainage system 10 of the present embodiment, since cleaning may be performed after being notified, it is not necessary to perform a visual inspection on a regular basis, and the burden on the resident and the contractor can be significantly reduced. ..

(Second Embodiment)
Next, the siphon drainage system 10 will be described in the second embodiment of the present invention according to FIG. 7. The same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 7, in the present embodiment, the dirt detection device 100 is provided not at the core 54 but at the upper part of the first connection portion 60 of the cleaning portion 50.
In the siphon drainage system 10 of the present embodiment as well, as in the first embodiment, it is possible to easily know whether or not the inner wall surface of the siphon drainage pipe 44 is dirty in the house.
In the present embodiment, the dirt detection device 100 is provided above the first connection portion 60, but the dirt detection device 100 is provided at a place other than the upper portion such as a side portion or a lower portion of the first connection portion 60. You may.

(Third Embodiment)
Next, the siphon drainage system 10 will be described in the third embodiment of the present invention according to FIG. The same components as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 8, in the siphon drainage system 10 of the present embodiment, the dirt detection device 120 provided with the transmissive optical sensor 118 is provided in the first connection portion 60 of the cleaning portion 50.

The dirt detection device 120 includes a pair of through holes 122 that face each other in the horizontal direction with the central axis of the first connection portion 60 interposed therebetween, and a window glass 124 made of a transparent material is attached to these through holes 122. ..
The transmissive light sensor 118 is connected to the notification device 110, the light source 118A is attached to one window glass 124, and the light receiving element 118B is attached to the other window glass 124. In the present embodiment, the light emitted from the light source 118A passes through the central axis of the first connection portion 60 and is incident on the light receiving element 118B.

Here, when the dirt 108 does not adhere to the window glass 124 or the dirt 108 adheres little, the amount of light transmitted through the pair of window glasses 124 and received by the light receiving element 118B is large, and the window glass 124 When the amount of dirt 108 adhering to the window is large, the amount of light received by the light receiving element 118B is small.

Therefore, the notification device 110 inputs light amount data from the light receiving element 108B, determines that some dirt is attached when the light amount is equal to or less than a preset threshold value, and lights or blinks the warning lamp 112. As a result, the user can easily know whether or not the inner wall surface of the siphon drainage pipe 44 is dirty by looking at the warning lamp 112 in the house.

In the present embodiment, the light source 118A and the light receiving element 118B are arranged so as to face each other in the horizontal direction with the central axis of the first connection portion 60 interposed therebetween, and the light emitted from the light source 118A is the center of the first connection portion 60. Although it was supposed to pass through the shaft, the light emitted from the light source 118A only needs to cross at least the inside of the tube, and the positions of the light source 118A, the light receiving element 118B, and the pair of windowpanes 124 are limited to the positions of this embodiment. No.

(Fourth Embodiment)
Next, the siphon drainage system 10 will be described in the fourth embodiment of the present invention according to FIG. The same components as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 9, in the siphon drainage system 10 of the present embodiment, a dirt detection device 100 provided with a reflection type optical sensor 106 is provided above the horizontal pulling pipe member 28. A through hole 126 is formed in the upper part of the horizontal pulling tube member 28 at a position facing the reflection type optical sensor 106, and a window glass 128 made of a transparent material is attached to the through hole 126. ..

In the siphon drainage system 10 of the present embodiment, when the dirt 108 is not attached to the window glass 128 or the dirt 108 is not attached, the amount of reflected light is small and the amount of the dirt 108 attached to the window glass 128 is small. In the case of a large amount of light, the amount of reflected light becomes large. Therefore, as in the first embodiment, it is possible to easily know whether or not the inner wall surface of the siphon drain pipe 44 is dirty in the house. can.

In the present embodiment, the dirt detecting device 100 is provided on the upper part of the horizontal pulling pipe member 28, but the dirt detecting device 100 may be provided on a place other than the upper part such as the side portion and the lower part of the horizontal pulling pipe member 28. good. Further, the dirt detection device 100 is not limited to the horizontal pulling pipe member 28, but may be provided in the vertical pipe 48, or may be provided in any siphon drainage pipe 44.

(Fifth Embodiment)
Next, the siphon drainage system 10 will be described in the fifth embodiment of the present invention according to FIG. The same components as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 10, in the siphon drainage system 10 of the present embodiment, the horizontal pulling pipe member 28 is provided with a dirt detection device 120 provided with a transmission type optical sensor 118.
The horizontal pulling pipe member 28 includes a pair of through holes 130 facing each other, and a window glass 132 made of a transparent material is attached to these through holes 130. A light source 118A is attached to one window glass 132, and a light receiving element 118B is attached to the other window glass 132.

In the siphon drainage system 10 of the present embodiment, by measuring the amount of light transmitted through one of the windowpanes 132, it is possible to easily know in the house whether or not the inner wall surface of the siphon drainage pipe 44 is dirty. ..
The dirt detection device 120 of the present embodiment is not limited to the horizontal pulling pipe member 28, and may be provided anywhere as long as it is a siphon drainage pipe 44.

(Sixth Embodiment)
Next, the siphon drainage system 10 will be described in the sixth embodiment of the present invention according to FIG. The same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 11, in the siphon drainage system 10 of the present embodiment, a state detection device 136 provided with an ultrasonic flow meter 134 is provided on the horizontal pull pipe member 28.

The ultrasonic flow meter 134 includes a first detector 134A and a second detector 134B. The first detector 134A is attached to the upstream side of the outer peripheral surface of the horizontal pulling pipe member 28 in the drainage direction, and the pipe central axis is sandwiched between the first detector 134A and the first detector 134A on the downstream side in the drainage direction. A second detector 134B is attached to the opposite side.

The ultrasonic flow meter 134 transmits ultrasonic waves from the first detector 134A on the upstream side in the drainage direction along the measurement line L in the pipe until it is received by the second detector 134B on the downstream side in the drainage direction. Obtain the flow velocity V in the pipe from the propagation time td and the time difference Δt of the propagation time tu transmitted from the second detector 134B on the downstream side in the drainage direction and received by the first detector 134A on the upstream side in the drainage direction. A known material that can be used can be used.

For example, when dirt adheres to the inner wall surface of the horizontal pulling pipe member 28, the inner diameter becomes substantially smaller, so that the flow velocity of drainage becomes faster. Therefore, the flow velocity at the time of new product (for example, at the time of construction) is compared with the flow velocity after use, and if the flow velocity is increased, it is determined that dirt is attached to the inner wall surface of the horizontal pulling pipe member 28. can.

If air flows into the siphon drainage pipe 44 during drainage, the flow velocity of the drainage decreases. Therefore, by detecting the decrease in the flow velocity of the drainage, it is possible to know that the air has flowed into the siphon drainage pipe 44. For example, when the drain trap of the water supply device on the upstream side breaks and sucks in air, air may flow into the drain of the siphon drain pipe 44.

Further, the state detection device 136 of the present embodiment is not limited to the horizontal pull pipe member 28, and may be provided anywhere as long as it is a siphon drain pipe 44.

In the present embodiment, the ultrasonic flow meter 134 is used as the state detection device 136, but a flow meter other than the ultrasonic flow meter 134 such as an electromagnetic flow meter may be used.

(7th Embodiment)
Next, the siphon drainage system 10 will be described in the seventh embodiment of the present invention.
In the present embodiment, a device for measuring the time until the siphon is generated is used as the in-pipe state detection device. When dirt adheres to the inside of the pipe and the inner diameter becomes substantially smaller, the time from when the drainage starts to flow into the siphon drainage system until the siphon force is activated becomes shorter. By measuring the time from the start of this drainage to the activation of the siphon force, it is possible to determine whether or not dirt is attached to the inside of the pipe. As a method of measurement, for example, it can be obtained by grasping the flow velocity after the drainage starts to flow using the above-mentioned current meter and calculating the time required for the flow velocity to reach its peak.

[Other Embodiments]
Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and it goes without saying that the present invention can be variously modified and implemented within a range not deviating from the gist thereof. Is.

In the above embodiment, the window glass is irradiated with light, and dirt 108 is detected based on the amount of reflected light or transmitted light, but the present invention is not limited to this, and for example, a window with a camera (CCD or the like) is used. It is also possible to photograph the glass and photograph the dirt 108 adhering to the window glass with a camera to detect the dirt 108.

The siphon drain pipe 44 or the cleaning portion 50 may be formed of a transparent resin, and in this case, the window glass as a separate member becomes unnecessary.

The light emitted from the light source in the optical sensor is not limited to visible light, and may be light rays other than visible light such as infrared rays. When the light emitted from the light source is infrared rays, the window glass does not have to be transparent in appearance as long as the infrared rays can easily pass through. That is, when the siphon drain pipe 44 or the cleaning portion 50 is made of a resin material or the like that easily transmits infrared rays, it is not necessary to use a transparent window glass. Further, the portion that transmits infrared rays may be formed thin so that infrared rays can be easily transmitted.

The dirt detection device 100, the dirt detection device 120, and the state detection device 136 may be provided at at least one place in the siphon drain pipe 44, but may be provided at a plurality of places.
When the dirt detection device 100, the dirt detection device 120, or the state detection device 136 is provided at a plurality of locations of the siphon drain pipe 44, an average value may be obtained from the plurality of detection data and notification may be performed based on the average value. Notification may be performed based on any detection data such as the maximum value.

By the way, in the siphon drainage pipe 44, since the horizontal pulling pipe 46 is arranged in the horizontal direction (horizontal), when the drainage stays inside the horizontal pulling pipe 46 after the drainage from the water supply device 20 is completed. There is. On the other hand, since the vertical pipe 48 of the siphon drainage pipe 44 is arranged in the vertical direction, the drainage falls and the drainage does not stagnate inside.

Therefore, when the drainage is not flowing due to the siphon force, foreign matter (cause of dirt) in the drainage staying in the horizontal pulling pipe 46 touches the inner wall surface of the horizontal pulling pipe 46, which is compared with the vertical pipe 48. Therefore, the horizontal pulling pipe 46 tends to be easily contaminated.
Therefore, it is preferable that the optical stain detection device 100 and the stain detection device 120 are provided on the horizontal pulling pipe 46.

In the above embodiment, when the amount of reflected light or transmitted light corresponding to the amount of dirt exceeds a preset threshold value (or becomes equal to or less than a preset threshold value), notification is performed. , The light amount may be measured at predetermined time intervals, and notification may be given when the change in the light amount suddenly changes regardless of the threshold value.
In addition, in determining whether or not the change in the amount of light has changed abruptly, it is possible to install a large number of this system, send it to the server obtained from each system, and make a judgment using the result of analyzing the data. ..

When a photoelectric sensor is used to detect stains, the threshold value for detecting stains and the color change vary depending on the color of the member of the cleaning unit 50 and the color of the light source used.
As an example, as shown in FIG. 2, in a siphon drainage system 10 using a reflective optical sensor 106 provided with a light source (not shown) and a light receiving element (not shown), the drainage remaining in the pipe is dried. In particular, dirt may accumulate toward the bottom of the main body tube portion 58. In such a case, the color of the member of the cleaning unit 50 and the light source is appropriately selected, and when dirt is accumulated, the light receiving element detects that the amount of light (the dirt is reflected) is large.
On the other hand, when dirt starts to adhere to the window glass 104, which is relatively hard to get dirty, it becomes difficult for the light receiving element to receive the light from the light source, so that the light receiving element detects that the amount of light is low. In this way, it is possible to determine whether or not to clean the inside of the pipe by capturing the change in the amount of light received by the light receiving element. For example, in this example, cleaning is not performed when the amount of received light is large, but cleaning can be started when the amount of received light begins to decrease.
Further, when the amount of light received by the light receiving element increases and then begins to decrease, or when the amount of light suddenly begins to decrease, it is conceivable that a shield covers the detection portion of the optical sensor 106 or an abnormality of the light source occurs.
Further, as a combination in which the amount of light received increases when dirt adheres, for example, when a light source that emits infrared rays is used and the color of the main body tube 58 is changed to gray, ocher dirt adheres to the main body tube 58. The amount of light received increases, and dirt can be detected.

The disclosure of Japanese Patent Application No. 2018-21202, filed November 12, 2018, is incorporated herein by reference in its entirety.
All documents, patent applications, and technical standards described herein are to the same extent as if the individual documents, patent applications, and technical standards were specifically and individually stated to be incorporated by reference. Incorporated herein by reference.

Claims (12)

A siphon drainage pipe that extends laterally and flows drainage from water supply equipment, and a siphon drainage pipe that is connected to the downstream side of the horizontal pulling pipe and includes a vertical pipe extending in the vertical direction.
An in-pipe state detection device that detects the internal state of the siphon drainage pipe and outputs state detection data,
A notification device that notifies the internal state of the siphon drainage pipe based on the state detection data, and
Drainage system with. The drainage system according to claim 1, wherein the in-pipe state detection device measures the flow velocity of a fluid flowing inside the siphon drainage pipe. The drainage system according to claim 1, wherein the in-pipe state detecting device detects dirt on the inner wall surface of the siphon drainage pipe. The drainage system according to claim 2 or 3, wherein the in-pipe state detection device is provided in the horizontal pulling pipe. The horizontal pulling pipe is provided with a main body portion having a pipeline through which drainage flows, a cleaning port formed in the main body portion, and a cleaning section provided with a closing member for closing the cleaning port.
The drainage system according to any one of claims 2 to 4, wherein the pipe state detection device is provided in the cleaning unit. The in-tube state detecting device includes a light transmitting window provided in the horizontal pulling tube, a light source that irradiates light from the outside of the tube toward the inside of the tube through the light transmitting window, and the above-mentioned reflected by the inner wall surface of the tube. The drainage system according to claim 3 or 4, further comprising a light receiving element that detects light. The in-tube state detection device includes a pair of light transmitting windows provided in the horizontal pulling tube at positions facing each other, a light source that irradiates light so as to pass through the pair of light transmitting windows, and a light source. The drainage system according to claim 3 or 4, further comprising a light receiving element that detects the light transmitted through the pair of light transmitting windows. The inner wall surface of the light transmissive window is set to have the same surface roughness as the inner wall surface of the horizontal pulling pipe.
The drainage system according to claim 6 or 7. The in-tube state detection device includes a light transmitting window provided in the cleaning unit, a light source that irradiates light from the outside of the tube toward the inside of the tube through the light transmitting window, and the light reflected by the inner wall surface of the tube. The drainage system according to claim 5, further comprising a light receiving element for detecting a light source. The in-pipe state detection device includes a pair of light transmitting windows provided in the cleaning unit at positions facing each other, a light source that irradiates light so as to pass through the pair of light transmitting windows, and the above. The drainage system according to claim 5, further comprising a light receiving element that detects the light that has passed through a pair of light transmitting windows. The drainage system according to any one of claims 1 to 10, further comprising a server connected to the in-pipe state detection device and processing the state detection data. The state according to any one of claims 1 to 10, wherein the in-pipe state detection device includes a transmission device that transmits the state detection data to an external server installed outside the system that processes the state detection data. The drainage system described.

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