JP2005030064A - Drain classifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drain classifier, by which whether or not a drain can be reused is discriminated in response to the turbidity of the drain and only the drain decided as a reusable state can be reused. <P>SOLUTION: The drain classifier has a turbidity sensor 3 detecting the turbidity of the drain in a drain pipe 1, a pump 4 sucking the drain in the drain pipe and supplying a supply destination with the drain, a cutoff valve 5 opening and closing the drain outlet 1a of the drain pipe 1 and a control section 9 controlling the operation of the turbidity sensor 3, the pump 4 and the cutoff valve 5. When the turbidity of the drain at a specified value or less is detected by the sensor 3, the control section 9 operates the pump 4 while operating the valve 5 and the drain outlet 1a is closed. When an excess over the specified value of the turbidity of the drain is detected by the sensor 3, the control section 9 stops the pump 4 while operating the valve 5 and the drain outlet 1a is opened. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, when wastewater discharged from a bath, kitchen, washstand, etc. in a household is reused as washing water for washing toilets, washing water or other water, it is determined whether the wastewater can be reused and sorted. The present invention relates to a wastewater separation device.
[0002]
[Prior art]
Reuse of waste water discharged from homes and the like has been studied while effective use of water resources is required. Patent Document 1 discloses that water remaining in a bath is reused as washing water and washing water for flush toilets. An apparatus for disclosing is disclosed.
[0003]
In addition, in the Japanese Patent Application No. 2003-78315, the applicant of the present application has proposed a wastewater recycling apparatus that automatically switches to tap water when there is no remaining water (drainage).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-204942
[Problems to be solved by the invention]
However, the above-mentioned conventional technology reuses all wastewater regardless of the nature of the wastewater, and even if the wastewater is highly contaminated and highly turbid, the wastewater is reused. , There was an adverse effect on the equipment of the supplier. Thus, when recycling wastewater, it is necessary to determine the turbidity of the wastewater and reuse only wastewater that is less than or equal to the allowable turbidity.
[0006]
Therefore, the problem to be solved by the present invention is to determine whether or not the waste water can be reused according to the turbidity of the waste water, and to separate only the waste water that is judged to be reusable. Is to provide.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, a wastewater separation apparatus according to the present invention includes a turbidity sensor that detects the turbidity of wastewater in a drainage pipe, a pump that sucks the wastewater in the drainage pipe and supplies it to a supply destination, and drainage of the drainage pipe. A water stop valve that opens and closes the outlet, and a control unit that controls the operation of the turbidity sensor, the pump, and the water stop valve, and when the turbidity sensor detects that the turbidity of the wastewater is equal to or less than a predetermined value. The control unit operates the pump and operates the water stop valve to close the drain outlet, and when the turbidity sensor detects that the turbidity of drainage exceeds a predetermined value, the control The unit stops the pump and operates the water stop valve to open the drain outlet.
[0008]
Thereby, the wastewater whose turbidity exceeds a predetermined value is discharged from the drainage outlet without being reused, and only the wastewater whose turbidity is not more than the predetermined value can be supplied to the supply destination by the pump.
[0009]
Moreover, the waste water separation apparatus of the present invention includes a first water level sensor that detects the water level of the waste water in the drain pipe, and a washing machine that cleans the inner surface of the drain pipe near the turbidity sensor or the position where the turbidity sensor is disposed. And the controller stops the pump and the turbidity sensor and activates the washing machine when it is detected by the first water level sensor that the amount of waste water in the drain pipe is below a predetermined amount. You can make it. That is, when the turbidity sensor is disposed in the drain pipe, the washing machine directly cleans the turbidity sensor, and when the turbidity sensor is disposed outside the drain pipe, the drain pipe near the position where the turbidity sensor is disposed. Clean the inside. By providing this washing machine, the turbidity sensor or the turbidity sensor can wash the inner surface of the drain pipe in the vicinity of the arrangement position, so that it is possible to prevent the sensitivity of the turbidity sensor from being lowered due to dirt. In addition, the washing machine operates when it is detected by the first water level sensor that the amount of waste water in the drain pipe has become a predetermined amount or less. At this time, the pump and the turbidity sensor are stopped, which adversely affects the operation of the apparatus. Will not affect.
[0010]
Furthermore, the waste water separation apparatus of the present invention further includes a second water level sensor for detecting the water level of the waste water near the pump, and the second water level sensor detects that the waste water in the drain pipe has become a predetermined amount or less. Then, the control unit can stop the pump. Thereby, the idling | running operation of a pump can be prevented.
[0011]
The drainage separation apparatus of the present invention further includes a third water level sensor for detecting the water level of the drainage in the drainage tank of the supply destination for storing the drainage supplied by the pump, and the third water level sensor detects the water level in the drainage tank. When it is detected that the amount of drainage exceeds a predetermined amount, the control unit can stop the pump. Thereby, the overflow of the drain tank of a supply destination can be prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below based on examples shown in the drawings.
[0013]
FIG. 1 is a configuration diagram of a wastewater separation apparatus of the present invention. 2 is a schematic plan view showing the arrangement of the turbidity sensor in FIG. 1, and FIG. 3 is a schematic longitudinal sectional view showing the arrangement relationship between the turbidity sensor and the washing machine in FIG.
[0014]
In FIG. 1, drainage from a bath, kitchen, basin, etc. flows into the drainage pipe 1. In this drainage pipe 1, a filter 2, a turbidity sensor 3, A pump 4 and a water stop valve 5 are arranged. A first water level sensor 6 is provided in the main pipe of the drain pipe 1, and a second water level sensor 7 is provided in the vicinity of the suction port of the pump 4. A cleaning machine 8 is provided in the vicinity of the turbidity sensor 3. In the present embodiment, two turbidity sensors 3 are arranged and a washing machine 8 is provided in the vicinity thereof, but only one washing machine 8 is shown in FIG.
[0015]
The filter 2 is for removing dust in the drainage, and is detachably attached in the drainpipe 1 so that it can be periodically removed and washed.
[0016]
The turbidity sensor 3 detects the turbidity of the waste water in the drain pipe 1, and as shown in FIG. 2, a light emitting element 3a that is a light emitting diode (LED) that emits near infrared rays, and a light emitting element 3a. The light receiving element 3b is arranged in a direction orthogonal to the directivity direction and receives near infrared rays reflected by the pollutant in the waste water. The light emitting element 3a emits near infrared rays in a range of 90 ° from the directional direction (region A in FIG. 2), and the light receiving elements emit near infrared rays in the range of 90 ° from the directional direction (region B in FIG. 2). Is configured to receive light. Then, the turbidity of the waste water is detected based on the amount of light received by the light receiving element 3b. That is, the turbidity is high when the amount of light received by the light receiving element 3b is large, and the turbidity is low when the amount of received light is small. The light reception signal from the light receiving element 3b is input to the control unit 9 having a calculation processing function, and is converted into a turbidity value by performing a predetermined calculation. In the embodiment, since two turbidity sensors 3 are arranged, the light reception signals from the two light receiving elements 3b are averaged and used for calculating the turbidity value.
Further, in the turbidity sensor 3 of the embodiment, an optical filter 3c is attached to the light receiving element 3b, thereby eliminating light other than near-infrared light emitted from the light emitting element 3a. Further, in order to remove errors due to disturbance light, the light emitting element 3a repeats lighting and blinking, and uses the light receiving signal (V1) from the light receiving element 3b at the time of lighting and the light receiving signal (V2) from the light receiving element 3b at the time of blinking. Therefore, turbidity is detected with high accuracy.
[0017]
The turbidity sensor 3 is disposed outside the drain pipe 1 as shown in FIG. Thus, when arrange | positioning the turbidity sensor 3 outside the drainage pipe 1, the drainage pipe 1 of the part in which the turbidity sensor 3 is arrange | positioned at least is formed with transparent materials, such as transparent acrylic.
[0018]
Returning to FIG. 1, the submersible pump 4 sucks the wastewater in the drainage pipe 1 and supplies it to the drainage tank 10 of the supply destination, and is operated (actuated) or stopped by a control signal from the control unit 9. As shown in FIG. 1, a third water level sensor 11 for detecting full water is provided at the upper part of the drain tank 10 at the supply destination, and drainage is performed so as not to overflow even if the water level sensor 11 breaks down. A mouth 10a is provided. Furthermore, an air blower 12 that is operated (actuated) or stopped by a control signal from the control unit 9 is provided at the bottom of the drain tank 10. The drainage in the drainage tank 10 is reused by the pump unit 13 as toilet washing water or washing water.
[0019]
The water stop valve 5 opens and closes the drain outlet 1a of the drain pipe 1, and is a motor type valve driven by a motor 5a. The motor 5a of the water stop valve 5 is driven by a control signal from the control unit 9 to move the water stop valve body 5b up and down.
[0020]
As shown in FIG. 3, the washing machine 8 is provided with a washing nozzle 8a and a wiper 8b for washing the inner surface of the drain pipe 1. Water from the water pipe 14 is supplied with electromagnetic water 8c into the washing nozzle 8a. Supplied through. The electromagnetic valve 8c is opened and closed by a control signal from the control unit 9, and cleaning water is discharged from the cleaning nozzle 8a when the electromagnetic valve 8c is in an open state. The wiper 8b is also operated by a control signal from the control unit 9, and operates while the electromagnetic valve 8c is open. A cleaning agent supply tank 8d is connected between the electromagnetic valve 8c and the cleaning nozzle 8a so that the cleaning agent can be mixed with the clean water discharged from the cleaning nozzle 8a.
[0021]
The first water level sensor 6, the second water level sensor 7, and the third water level sensor 11 are all electrode type water level sensors, and the first water level sensor 6 determines the amount of drainage (water level) in the drain pipe 1 as the second water level. The sensor 7 detects the amount of drainage near the pump 4, and the third water level sensor 11 detects the amount of drainage in the drainage tank 10, and sends the detected water level signal to the control unit 9.
[0022]
Next, operation | movement of the waste_water | drain separation apparatus of this invention is demonstrated with reference to FIGS.
[0023]
First, in a state where the power supply of the control unit 9 of the drainage separation apparatus is turned off, the water stop valve body 5a of the water stop valve 5 is raised and the drain outlet 1a is opened, and the drainage in the drain pipe 1 is discharged. It is discharged from the drain outlet.
[0024]
Next, when the power of the control unit 9 is turned on, first, the water level sensors of the first water level sensor 6, the second water level sensor 7, and the third water level sensor 11 are operated. When it is detected that the amount of drainage in the tank exceeds a predetermined amount, the turbidity sensor 3 also operates. The turbidity sensor 3 measures the turbidity of the waste water in the drain pipe 1 as described above, and the turbidity is calculated by the control unit 9 based on the light reception signal from the light receiving element 3b. When it is detected that the turbidity is equal to or less than a predetermined value (for example, 2 degrees or less), the control unit 9 drives the motor 5a of the water stop valve 5 to lower the water stop valve body 5b. Is sent to the motor 5a. Thereby, the drain outlet 1a of the drain pipe 1 is closed by the water stop valve body 5b.
[0025]
In parallel with this, the control unit 9 confirms the water level signals from the first water level sensor 6, the second water level sensor 7, and the third water level sensor 11, and the drainage in the drain pipe 1 and in the vicinity of the pump 4 reaches a predetermined amount. When it is detected that the amount of waste water in the drain tank 10 is less than a predetermined amount, a control signal for operating the pump 4 is sent to the pump 4. As a result, the reusable wastewater detected by the turbidity sensor 3 as having a turbidity of a predetermined value or less is supplied by the pump 4 to the drainage tank 10 of the supply destination.
[0026]
During the operation of the pump 4, the turbidity sensor 3 continuously measures the turbidity of the waste water. When the turbidity sensor 3 detects that the turbidity of the waste water exceeds a predetermined value, the control unit 9 Sends a control signal for stopping the pump 4 to the pump 4, and sends a control signal for driving the motor 5a of the water stop valve 5 to raise the water stop valve body 5b to the motor 5a. Thereby, the non-reusable waste water whose turbidity exceeds a predetermined value is discharged from the waste water outlet 1a without being reused.
[0027]
On the other hand, when the pump 4 is in operation, the first water level sensor 6 detects that the drainage amount in the drain pipe 1 has become a predetermined amount or less, and the second water level sensor 7 determines the amount of drainage in the vicinity of the pump 4. When it is detected that the amount is below the fixed amount, the control unit 9 sends a control signal to stop the pump 4 to the pump 4. As a result, idling of the pump 4 is prevented. Further, also when the third water level sensor 11 detects that the amount of drainage in the drainage tank 10 has exceeded a predetermined amount, the control unit 9 sends a control signal to stop the pump 4 to the pump 4. Thereby, the overflow of the waste water from the water collection tank 10 is prevented.
[0028]
When the first water level sensor 6 detects that the amount of drainage in the drainpipe 1 has become a predetermined amount or less, the control unit 9 sends a control signal for stopping the pump 4 to the pump 4 as described above, and turbidity. A control signal for stopping the degree sensor 3 is sent to the turbidity sensor 3. At the same time, the control unit 9 sends a control signal for opening the electromagnetic valve 8c of the cleaning machine 8 to the electromagnetic valve 8c and a control signal for operating the wiper 8b of the cleaning machine 8 to the wiper 8b. Accordingly, as described above with reference to FIG. 2, clean water is discharged from the cleaning nozzle 8a to the inner surface of the drain pipe 1, and the inner surface of the drain pipe 1 is cleaned by the wiping action of the wiper 8b. The electromagnetic valve 8c and the wiper 8b operate for a predetermined time according to the setting of a timer built in the control unit 9, and then stop.
[0029]
When the first water level sensor 6 detects that the drainage amount in the drainage pipe 1 has become equal to or less than the predetermined amount, the pump 4 is stopped as described above, so that the supply of drainage to the drainage tank 10 is stopped. If this state continues for a long time, the drainage in the drainage tank 10 may be spoiled. Therefore, in this embodiment, when it is detected that the amount of drainage in the drainage pipe 1 has become a predetermined amount or less, a control signal for operating the air blower 12 is sent from the control unit 9 to the air blower 12. . Thereby, since air is supplied from the air blower 12 and the waste water in the drain tank 12 is agitated, the waste water can be prevented from decaying. The air blower 12 operates for a predetermined time according to the setting of a timer built in the control unit 9, and then stops.
[0030]
As mentioned above, although the Example of this invention was described, this invention is not limited to this Example. For example, in the embodiment, the turbidity sensor is arranged outside the drain pipe, but may be arranged inside the drain pipe. In this case, the washing machine is configured such that the washing nozzle and the wiper are arranged so as to directly wash the turbidity sensor. In the embodiment, two turbidity sensors each including a light emitting element and a light receiving element are arranged, but the number is not limited. Furthermore, although the motor type valve is employed as the water stop valve in the embodiment, it may be an electromagnetic valve type.
[0031]
【The invention's effect】
According to the present invention, since the pump and the water stop valve are controlled by the turbidity detected by the turbidity sensor, the waste water exceeding the predetermined value of turbidity is discharged from the drain outlet without being reused. Thus, only wastewater having a turbidity of a predetermined value or less can be supplied to the supply destination. In addition, since the apparatus configuration is simple and can be provided at low cost, it can also be used for general household use.
[0032]
In addition, in a device equipped with a washing machine for washing the turbidity sensor, it is possible to prevent a decrease in sensitivity of the turbidity sensor and to operate for a long period of time.
[0033]
Furthermore, the thing provided with the 2nd water level sensor which detects the water level of the waste_water | drain near a pump can prevent the idle driving | operation of a pump.
[0034]
Further, in the case of including the third water level sensor that detects the water level of the waste water in the drain tank of the supply destination, the overflow of the drain tank of the supply destination can be prevented.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a wastewater separation apparatus according to the present invention.
2 is a schematic plan view showing the arrangement of turbidity sensors in FIG. 1. FIG.
FIG. 3 is a schematic longitudinal sectional view showing the positional relationship between the turbidity sensor and the washing machine in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drain pipe 1a Drain outlet 2 Filter 3 Turbidity sensor 3a Light emitting element 3b Light receiving element 3c Optical filter 4 Pump 5 Stop valve 5a Motor 5b Stop valve main body 6 First water level sensor 7 Second water level sensor 8 Washing machine 8a Washing nozzle 8b Wiper 8c Solenoid valve 8d Cleaning agent supply tank 9 Control unit 10 Drain tank 10a Drain port 11 Third water level sensor 12 Air blower 13 Pump unit 14 Water pipe

Claims (4)

A turbidity sensor that detects the turbidity of the drainage in the drainage pipe, a pump that sucks the drainage water in the drainage pipe and supplies it to the supply destination, a stop valve that opens and closes the drainage outlet of the drainage pipe, a turbidity sensor, a pump and a stoppage A wastewater separation device comprising a control unit for controlling the operation of the water valve,
When it is detected by the turbidity sensor that the turbidity of the drainage is a predetermined value or less, the control unit operates the pump and operates the water stop valve to close the drainage outlet,
When the turbidity sensor detects that the turbidity of the wastewater exceeds a predetermined value, the control unit stops the pump and activates the water stop valve to open the drainage outlet. Waste water separation device to do. A first water level sensor for detecting the water level of the drainage in the drainage pipe, and a washing machine for cleaning the inner surface of the drainage pipe in the vicinity of the turbidity sensor or the location of the turbidity sensor,
When it is detected by the first water level sensor that the amount of drainage in the drain pipe has become a predetermined amount or less, the control unit stops the pump and the turbidity sensor and activates the washing machine. The waste water separation apparatus according to claim 1. A second water level sensor for detecting the water level of the waste water in the vicinity of the pump;
3. The waste water separation device according to claim 1, wherein when the second water level sensor detects that the amount of waste water in the vicinity of the pump is equal to or less than a predetermined amount, the control unit stops the pump. . A third water level sensor for detecting the water level of the waste water in the drain tank of the supply destination for storing the waste water supplied by the pump;
The said control part stops the said pump, if it detects that the waste_water | drain in the said waste_water | drain tank became more than predetermined amount by the said 3rd water level sensor, The said pump will be stopped in any one of Claims 1-3 characterized by the above-mentioned. Waste water separation equipment.

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