JP4711031B2 - Waste water treatment equipment for dental chair unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wastewater treatment apparatus for a dental chair unit, and in particular, the wastewater from the terminal discharge port of a water pipe is sterilized using acid water, and then neutralized with alkaline water to provide external treated water as neutral treatment water. The invention relates to a device that discharges to
[0002]
[Prior art]
Conventionally, for the drainage treatment of a dental chair unit, means for introducing sterilized water into the water circuit before or after the start of dental treatment and cleaning the drainage pipe of the whole water circuit has been proposed. On the other hand, the use of sterilized water is regulated, and there is a possibility that harmful pathogens of the patient are mixed in the drainage water that is circulated as needed. In addition, when acidic sterilizing water is used, acidity may remain even after being discharged to the outside.
There has also been proposed a method for discharging wastewater to an external sewage treatment plant, treating it there, and then releasing it.
[0003]
[Problems to be solved by the invention]
As described above, in the dental treatment, harmful pathogens contained in contamination sources such as saliva, blood, pus, sputum and plaque in the oral cavity of the patient may be mixed in various wastewaters. It cannot be removed with a simple filter. Moreover, in order to discharge the wastewater after guiding it to an external sewage treatment plant, the facility is required. However, in general, a dental clinic or the like is small and difficult to implement.
Further, when acidic sterilizing water is used, the acidity may remain even after being discharged to the outside, and rust may be generated in a metal drain pipe made of, for example, iron.
Therefore, after sterilizing at the discharge outlet of the drainage of each dental chair unit, neutralizing acidity and then releasing it to the outside is desired in view of environmental pollution.
The present invention provides a wastewater treatment apparatus that solves the above problems.
[0004]
[Means for Solving the Problems]
In view of the above, the present inventors have solved these problems by the following means as a result of intensive experimental research.
[1] A drainage treatment apparatus provided at a terminal end portion of a water distribution pipe of a dental chair unit, (1) a first water inlet connected to an outlet of the drainage pipe via an open / close solenoid valve; During neutralization of the acidic water and alkaline water of the second stage connected to the discharge port of acidic water and acidic water of the alkaline aquatic device via the open / close solenoid valve, and the next stage acidic water and alkaline water via the open / close solenoid valve A sterilization tank with a discharge port connected to the first water inlet of the sum tank, (2) a water inlet connected to a water pipe via an open / close solenoid valve, and a sterilization via an open / close solenoid valve An acid water / alkaline water generator by electrolysis comprising a first discharge port for injecting acidic water into the tank for use and a second discharge port for injecting alkaline water to the neutralization tank through an on-off solenoid valve; (3) A first water guide connected to the discharge port of the sterilization tank via an open / close solenoid valve And a second water inlet connected to the alkaline water discharge port of the acidic water / alkaline water generator via the open / close solenoid valve, and a discharge port connected to the external drain pipe via the open / close solenoid valve A neutralization tank; and (4) each of the open / close solenoid valves according to a water level signal from a water level sensor included in the sterilization tank, the acidic water / alkaline water generator and the neutralization tank, or in the sterilization tank. A tooth comprising: a solenoid valve opening / closing controller that controls opening / closing according to a measured value of the pH value; and (5) a power supply for the acidic water / alkaline water generator and the solenoid valve opening / closing controller. Waste water treatment equipment for dental chair unit.
[0005]
[2] A temporary drainage storage tank is provided at the end of the drain pipe of the dental chair unit, and the first water inlet of the sterilization tank is connected to the discharge outlet of the temporary drainage tank via an open / close solenoid valve. The waste water treatment apparatus for a dental chair unit according to item [1].
[3] A waste water treatment apparatus provided at a terminal end portion of a drain pipe of a dental chair unit, which is (1) acidic through a first water inlet connected to a discharge outlet of the drain pipe and an open / close solenoid valve A sterilization tank having a second water inlet connected to the discharge port of the acidic water of the water and alkaline water generator, and an overflow port for sending the overflowed treated water to the neutralization tank of the next stage; (2) A first water inlet for receiving the overflowed treated water, a second water inlet connected to the discharge port of the acidic water and the alkaline water of the alkaline water generator via the open / close solenoid valve, and the overflow treated water to the outside a neutralization tank having a discharge port for releasing the drainage tube, (3), a second water guide openings of the water guide port connected to the water pipe via an on-off solenoid valve, before Kimetsu fungus tank and the discharge port which is connected to No. 1 of water guide openings neutralization tank Electrolytic acid water / alkaline water generator provided, and (4), each open / close solenoid valve by spitting and vacuum drainage signal, by acid water / alkali water generator water level signal, or pH of sterilization tank A dental valve chair comprising: a solenoid valve opening / closing controller that controls opening / closing according to the measured value; and (5) a power source for the acidic water / alkaline water generator and the solenoid valve opening / closing controller. Unit wastewater treatment equipment.
[4] The wastewater treatment apparatus for a dental chair unit according to any one of [1] to [3], wherein the acidic water and alkaline water generator is generated by electrolyzing water.
[5] The sterilization tank mixes waste water from the dental chair unit with acidic water and acidic water discharged from an alkaline water generator to sterilize pathogenic bacteria in the waste water [1] ] The waste water treatment equipment for the dental chair unit according to any one of items [4] to [4].
[6] Neutralization tank neutralizes acidity by mixing acid water and alkaline water discharged from an alkaline water generator with mixed water of waste water from sterilization tank and acidic water to neutralize acidity The waste water treatment apparatus for a dental chair unit according to any one of items [1] to [5], wherein
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the invention will be described with reference to the drawings.
FIG. 1 is a plan view of a dental chair unit having a waste water treatment device,
FIG. 2 is a front view of a dental chair unit having a waste water treatment apparatus.
In the figure, 1 is a dental chair unit, 2 is a chair, 3 is a foot switch, 4 is an auxiliary table, 5 is a spitton, 6 is a light arm, 7 is a water circuit storage unit, 8 is a supply / drain pipe installation unit, 9 Indicates a wastewater treatment device storage.
The waste water treatment device is disposed in the rear waste water treatment device storage portion 9 in contact with the water supply / drainage installation portion 8 disposed in the lower space of the water circuit storage portion 7.
The waste water treatment device may be disposed in the vicinity of the dental chair unit 1.
[0007]
FIG. 3 is a block diagram showing the configuration of the waste water treatment apparatus.
In the figure, 10 is a suction direction, 11 is a suction tube, 12 is a vacuum filter, 13 is a suction direction of a vacuum tank, 14 is a suction tube, 15 is an air inlet, 16 is a joint drain, 17 is a vacuum tank, and 18 is a vacuum tank. , 19 and 20 are drain pipes, 21 is spitston drainage, 22 is a drain trap, 23 is a drain pipe, 23a is a water inlet, 24 is a temporary drainage storage tank, 25 is a stored drainage, 26 is a discharge port, and 27 is Water inlet, 28 is a sterilization tank, 28a is a water inlet, 29 is a mixed solution of drainage / acidic water, 29a is a discharge port, 30 is a power source, 30a is a lead for electrodes, 31 is tap water, 31a is a water conduit, 32 is a water inlet, 32 a and 32 b are outlets, 33 is an acidic water / alkaline water generator, 34 is an electrode, 35 is acidic water, 36 is an acidic water conduit, 37 is a treatment drain, 38 is an external drain 40a, 40b, 40c, 40d, 40e, 40f are open / close solenoid valves, 41 is a pH sensor, 41a is a pH signal line, 42 is a pH meter, 43a, 43b, 43c, 43d, 43e, 43f, 43g, and 43h are water level sensors. , 44 is a pH value adjustment instruction unit, 45 is a solenoid valve opening / closing control unit, 46 is a diaphragm, 47 is alkaline water, 48 is a neutralization tank, 48a and 48b are water inlets, 51 is a water level signal line, and 52 is power control. A signal line, 53 is an alkaline water conduit, and 65 is neutralized treated water.
[0008]
The example is a wastewater treatment device that uses a head.
As shown in the drawing, the drainage from the drain pipe 23 through which the joint drainage 16 flows is stored in the drainage temporary storage tank 24 through the water inlet 23a.
The first water inlet 27 is connected to the discharge port 26 of the temporary storage tank 24 through the open / close electromagnetic valve 40a, and the second water inlet 28a is generated through the open / close electromagnetic valve 40c to generate acidic water / alkaline water. Both are mixed by the sterilization tank 28 that mixes the drainage 25 connected to the acidic water 35 of the vessel 33 and the acidic water 35, and the fungi contained in the drainage 25 are sterilized by the acidic water 35.
The discharge port 29a of the sterilization tank 28 is connected to the first introduction port 48a of the neutralization tank 48 that mixes and neutralizes the acidic water and alkaline water of the next stage via the open / close solenoid valve 40e. The second introduction port 48b of the neutralization tank 48 is connected to the alkaline water 47 of the acidic water / alkaline water generator 33 described below via an open / close electromagnetic valve 40d.
In this neutralization tank 48, the sterilized water 29 in which waste water and acidic water are mixed and the alkaline water 47 of the acidic water / alkaline water generator 33 are mixed and neutralized to produce neutral treated water 65, which is an open / close electromagnetic wave. The water is discharged from the treatment drain pipe 37 to the external drain pipe 38 through the valve 40f.
[0009]
Then, the water introduction port 32 for injecting the acidic water 35 into the sterilization tank 28 through the open / close electromagnetic valve 40c and injecting the alkaline water 47 into the neutralization tank 48 through the open / close electromagnetic valve 40d. An electrolyzed acidic water / alkaline water generator 33 connected to the tap water 31 through an open / close solenoid valve 40b is disposed.
In this generator 33, a diaphragm 46 is provided in the middle of the electrode 34, and acidic water 35 is generated on the cathode side and alkaline water 47 is generated on the anode side.
For example, the suitability value of acidic water requires a pH value of 5.0 to 7.0 and an effective chlorine concentration of 30 to 50 ppm, and the value of alkaline water generates pH 7.0 or more.
In addition, the daily drainage (8 hours) of the dental chair unit is about 10 liters. Furthermore, although wastewater is generated intermittently, the amount of generated water at one time is not large, so the amount of acid water and alkaline water generated may be 2 liters / minute or less.
In the case of the electrolytic type, it is desirable to supply power by switching the cathode and the anode in a timely manner in order to reduce deposits on the cathode.
However, since the tank is reversed in this case, the open / close solenoid valves 40c and 40d are reversed (not shown).
[0010]
Next, the order until the combined waste water 16 is sterilized and discharged will be described.
The open / close solenoid valves 40a, 40b, 40c, 40d, 40f, and 40d are respectively provided with water level sensors 43a, 43b, 43c, 43d, and 43e included in the sterilization tank 28, the acidic water / alkaline water generator 33, and the neutralization tank 48. , 43f, 43g, 43h, a pH adjustment system for adjusting the energization amount of the power supply unit 30 via the pH adjustment instructing unit 44 and the electromagnetic valve opening / closing control unit 45 by the water level signal from the sterilization tank 28, or Each tank is opened and closed by an electromagnetic valve opening / closing control unit 45 that controls the opening and closing of the electromagnetic valve by signals from both.
Moreover, it has the power supply part 30 for the said acidic water / alkaline water generator 33 and the solenoid valve opening / closing control part 45, and supplies required power to each.
[0011]
Before the start of work, the solenoid valves 40a to 40f are closed, and the acidic water / alkali generator 33 and the tanks are empty.
(1) First, the open / close solenoid valve 40b is opened, and the tap water 31 is poured from the water inlet 32 through the water conduit 31a into the acidic water / alkali generator 33 to the position of the water level sensor 43a and closed.
{Circle around (2)} The power supply unit 30 is turned on and the electrode 34 is energized for a required time to generate acidic water 35 and alkaline water 47.
(3) Open / close solenoid valve 40c is opened and injected and stored in the sterilization tank 28 via the acidic water conduit 36 from the water inlet 28a to the position of the water level sensor 43d.
Further, the open / close electromagnetic valve 40d is opened and injected and stored in the neutralization tank 48 via the alkaline water conduit 53 from the water inlet 48b to the position of the water level sensor 43g.
(4) When the acidic water / alkaline water generator 33 becomes empty, the open / close solenoid valves 40c and 40d are closed, and the acidic water 35 and the alkaline water 47 are generated as described in the above items (1) to (2). Keep it.
The above is the preparation state before the start of work.
[0012]
Dental practice started,
(1) The solenoid valve 40a is opened, and the joint drain 16 flows into the drain pipe 23 every time the operator uses the water circuit. The drainage water passing through the bottom of the temporary drainage storage tank 24 is discharged from the discharge port 26 and guided. The sterilization tank 28 is injected from the water port 27.
(2) Then, it is gradually mixed with the stored acidic water 35 and sterilized.
(3) Further, the pH value at the time of mixing may be indicated by the detection pH meter 42 with the pH sensor 41, the required value may be monitored, and the power supply value of the acidic water / alkaline water generator 33 may be controlled. .
(4) When the mixed solution 29 of the drainage / acidic water gradually increases and reaches the position of the water level sensor 43c, the mixed solution sterilized by opening and closing the electromagnetic valve 40e is used for neutralization of the next stage from the discharge port 29a. It is discharged into the tank 48.
{Circle around (5)} Further, during the discharge, the open / close electromagnetic valve 40a is closed, and the joint drainage 16 is stored in the temporary storage tank 24 during that time.
Since the discharge time is short, the stored wastewater does not overflow.
{Circle around (6)} The discharged wastewater / acidic water 29 (sterilized water) increases in the neutralizing tank 48 and is mixed and neutralized with the stored alkaline water 47 to become neutral treated water.
(7) When the water level sensor 43f is reached, the open / close electromagnetic valve 40f is opened and discharged from the drain pipe 37 to the external drain pipe 38.
With the above steps, the first cycle of treatment water discharge is completed.
[0013]
In the next cycle, the following steps are performed.
(1) After the treatment water is discharged, the sterilization tank 28 and the neutralization tank 48 are emptied (water level sensors 43e and 43h are detected), so that the open / close solenoid valve 40a is closed and the open / close solenoid valve 40c is opened as before. Then, the acidic water 35 is injected and stored in the sterilization tank 28 via the acidic water conduit 36 from the water inlet 28a to the position of the water level sensor 43d.
Further, the open / close electromagnetic valve 40d is opened and injected and stored in the neutralization tank 48 via the alkaline water conduit 53 from the water inlet 48b to the position of the water level sensor 43g.
{Circle around (2)} The open / close electromagnetic valve 40a is opened, and the stored waste water 25 of the temporary storage tank 24 is injected into the sterilization tank 28 via the water inlet 27, and gradually mixed with the stored acidic water 35 for sterilization.
(3) When the mixed solution 29 of the waste water / acidic water gradually increases and reaches the position of the water level sensor 43c, the open / close solenoid valve 40e is opened and the sterilized mixed solution is used for neutralization of the next stage from the discharge port 29a. It is discharged into the tank 48.
{Circle around (5)} Further, during the discharge, the open / close electromagnetic valve 40a is closed, and the joint drainage 16 is stored in the temporary storage tank 24 during that time.
Since the discharge time is short, the stored wastewater does not overflow.
(6) The discharged wastewater / acidic water mixture 29 (sterilized water) is increased in the neutralization tank 48, mixed and neutralized with the stored alkaline water 47, and treated with neutral treated water. Become.
(7) When the water level sensor 43f is reached, the open / close electromagnetic valve 40f is opened and discharged from the drain pipe 37 to the external drain pipe 38.
This cycle is repeated several times a day.
[0014]
At the end of work, all the open / close solenoid valves 40a to 40f are opened to release the stored drainage 25, the mixed solution 29 of drainage / acidic water, the acidic water 35 and the alkaline water 47, and then open / close solenoid valves 40a to 40f again. Close and prepare for the next start-up.
This completes the entire process of wastewater treatment from the start to the end.
[0015]
FIG. 4 is a block diagram of a waste water treatment apparatus directly introduced from the drain pipe.
FIG. 4 is the same as FIG. 3 except that the temporary waste water storage tank 25 is deleted from FIG. 3 and the end of the drain pipe is directly introduced into the sterilization tank 28.
However, since the waste water temporary storage tank is eliminated, when the open / close solenoid valve 40a at the drain pipe end is closed when the treated water is discharged from the discharge port 29a of the sterilization tank 28, the accidentally generated waste water does not flow back through the drain pipe. Thus, measures such as keeping the drain pipe long are required.
The operation and work process are the same as in the case of FIG.
[0016]
FIG. 5 is a block diagram of a wastewater overflow type wastewater treatment apparatus.
In the figure, 50 is a signal line, 55 is a drainage signal generator for a vacuum tank, 56 is a drainage signal generator for Spitton, 57 and 59 are drainage signal lines, 49 and 60 are overflow outlets, 61 is gargle water, and 62 is Pot washing, 63 is a stirring blade, 64 is a rotating machine, 65 is neutral treated water, 67 is a main switch, 68 is a suction command, and 69 is a drain pipe.
As shown in the figure, in the sterilization tank 28, one water inlet 27 is connected to the outlet 27 of the drain pipe 23, and the other water inlet 28a is connected to the tap water 31 via the open / close solenoid valve 40b. Is connected to the acidic water 35 of the acid water / alkaline water generator 33 by electrolysis connected to the sterilization tank 28 via the open / close solenoid valve 40c, and the discharge port for the overflowed treated water 49 is connected to the water inlet 48 a of the neutralization tank 48 of the next stage via the drain pipe 69.
[0017]
The neutralization tank 48 has a first water inlet 48a connected to the sterilization tank 28, and a second water inlet 48b connected to the alkaline water 47 of the acidic water / alkaline water generator 33. The neutral treated water 65 that has been connected and neutralized is allowed to overflow from the discharge port 60, and the treated water 65 passes through the drain pipes 69 and 37 from the external drain pipe 38. Released.
The open / close solenoid valve 40c for opening and closing the discharge port 32a of the acidic water 35 of the acidic water / alkaline water generator 33 and the open / close solenoid valve 40d for opening and closing the discharge port 32b of the alkaline water 47 are drained by the spitton drainage signal device 56. The signal is opened and closed in synchronization with a drainage signal opening / closing command from the drainage signal device 56 of the vacuum tank 17.
[0018]
Next, the order until the combined waste water 16 is sterilized and neutralized and discharged by this waste water overflow method will be described.
Each of the open / close solenoid valves 40b to 40d is provided with a water level signal from the water level sensors 43a and 43b of the acidic water / alkaline water generator 33, or within the sterilization tank 28 or neutralization tank 48 in addition to the drainage signal. The pH adjustment system 44 that adjusts the energization amount of the power supply unit 30 via the pH adjustment instruction unit 44 and the electromagnetic valve opening / closing control unit 45 by the pH value of the electromagnetic valve, or the signal from the electromagnetic valve pH adjustment system by the signal from both The electromagnetic valve is opened and closed by an electromagnetic valve opening / closing controller 45 that controls the opening and closing of the electromagnetic valve.
Moreover, it has the power supply part 30 for the said acidic water / alkaline water generator 33 and the solenoid valve opening / closing control part 45, and supplies required power to each.
[0019]
Before the start of work, the solenoid valves 40b to 40e are closed, and the acidic water / alkaline water generator 33, the sterilization tank 28, and the neutralization tank 48 are empty.
First, the open / close solenoid valve 40b is opened, tap water 31 is poured from the water inlet 32 through the water conduit 31a to the acidic water generator 33 to the position of the water level sensor 43a and closed, and then the electrode 34 is energized to turn the acidic water 35 And the alkaline water 47 is produced | generated.
[0020]
Dental practice started,
(1) The practitioner uses a water circuit. For example, an instrument such as a handpiece is opened by a suction command 68, and a small amount is continuously drained through a vacuum tank 17 which is a gas-liquid separator. Alternatively, a predetermined amount of waste water is stored in the vacuum tank 17 by a cleaning open / close signal for injecting waste water from the spitton drain trap 22 to wash the vacuum tank 17, and then the vacuum tank suction 13 is closed to evacuate the upper vacuum of the tank. To release the stored wastewater,
The drainage opening / closing signal is detected by the drainage signal device 55, and the opening / closing solenoid valve 40c is opened / closed by the opening / closing solenoid valve controller 45 via the drainage signal lines 57, 59.
{Circle around (2)} As described above, when the drain signal is opened, drainage via the drain pipes 19 and 23 is injected into the sterilization tank 28 from the discharge port 27.
On the other hand, the acidic water 35 is injected from the open / close electromagnetic valve 40c, and both liquids are mixed to sterilize the bacteria in the waste water.
(3) In addition, when a spitton water circuit such as gargle water 61 and pot wash 62 is used, the signal from the drainage signal generator 56 for instructing water injection and drainage of the spittoon 5 is sent to the drainage signal line 59. The opening / closing solenoid valve controller 45 is operated via the opening / closing solenoid valve 40c in synchronization with the water injection and drainage commands.
As described above, the waste water that has passed through the drain pipes 20 and 23 is injected into the sterilization tank 28.
On the other hand, the acidic water 35 is injected from the open / close electromagnetic valve 40c, the two solutions are mixed, and the bacteria in the waste water are sterilized.
[0021]
(4) As described above, drainage is injected into the sterilization tank 28 every time the vacuum tank 17 is drained, and every time the spit 5 gargle water 61 and the pot wash 62 are drained. Acidic water 35 is injected from 33 and mixed.
When the amount of the sterilized water 29 gradually increases and reaches the overflow overflow port 49, it is discharged from the drain pipe to the neutralization tank 48 in the next stage.
Therefore, in the sterilization tank 28, the mixed solution 29 (sterilized water) of the drainage / acidic water is always stopped and is in a trap state.
(5) Further, for example, a stirring blade 63 may be provided in the sterilization tank 28, and stirring may be promoted. Further, the external rotating machine 64 for the stirring blade 63 may be turned ON / OFF corresponding to the main switch 67.
Further, in order to clean the sterilization tank 28, a drain pipe is provided at the bottom, and discharge from the bottom is performed via the open / close electromagnetic valve 40e. Cleaning may be performed in synchronization with the main switch 67, for example.
(6) Then, the neutralization tank 48 in the next stage is gradually increased by the overflowed sterilizing water, but the flow is detected by the flow sensor 70, and the open / close solenoid valve via the drain signal line 71. The controller 45 is actuated to open the open / close electromagnetic valve 40d, and the neutral water tank 48 is injected with alkaline water 47 via the drain pipe 72, whereby both solutions are mixed and neutralized.
When the neutral treated water 65 reaches the overflow overflow port 60, the neutral treated water 65 is discharged to the external drain pipe 38 via the drain pipes 69 and 37.
(7) Further, for example, a stirring blade 63 may be provided in the neutralizing tank 48 and stirring may be performed to promote mixing. Further, the external rotating machine 64 for the stirring blade 63 may be turned ON / OFF corresponding to the main switch 67.
Further, in order to clean the neutralization tank 28, a drain pipe is provided at the bottom, and discharge from the bottom is performed via the open / close solenoid valve 40f. Cleaning may be performed in synchronization with the main switch 67, for example.
[0022]
(8) During the above operation, when the acidic water 35 and alkaline water 47 are discharged from the acidic water / alkaline water generator 33 and become empty, the water level sensor 43b detects and closes the open / close solenoid valves 40c and 40d. The electromagnetic valve 40b is opened and water is poured to the position of the water level sensor 43a, and the electrode 34 is energized from the power supply unit 30 to repeatedly generate acidic water 35 and alkaline water 47.
At the end of work, the opening / closing solenoid valve 40b is closed, the opening / closing solenoid valves 40c, 40d are opened, and the acidic water 35 and alkaline water 47 inside are discharged.
The above is the cycle of the day.
According to this method, since the treated water overflowed from the sterilization tank 28 and the neutralization tank 48 is discharged to the outside, the drainage channel opening / closing mechanism is simple.
[0023]
【The invention's effect】
According to the present invention, the following excellent effects can be exhibited.
1. According to the invention of claim 1 of the present invention,
Neutralize the temporary drainage storage tank provided at the end of the drainage pipe of the dental chair unit, the acid water / alkaline water generator by electrolysis, the sterilization tank for mixing the waste water and acid water, and the acid water and alkaline water. The neutralization tanks are connected to each other through an open / close solenoid valve, and the open / close control is performed by a signal from a water level sensor included in each tank and the acid water / alkaline water generator or a pH value in the sterilization tank. Because it is equipped with a valve opening / closing control unit and a power supply unit, it is possible to sterilize various types of drainage contaminated with pathogens contained in the patient's mouth during dental treatment at the drainage outlet of each dental chair unit. Further, since neutral acid sterilized water is neutralized and discharged as neutral, rust prevention of an external drain pipe made of, for example, iron can be performed.
Therefore, the desired environmental pollution problem can be solved by an easy means.
In addition, according to this method, since the drainage treatment after the end of the dental chair unit is performed, it can be applied to any ready-made chair unit regardless of the drainage type in the chair unit. Can be accurately mixed with alkaline water.
[0024]
2. According to the invention of claim 2,
Since the temporary drainage storage tank is provided at the end of the drainage pipe of the dental chair unit, there is no possibility that the wastewater during processing will flow backward in the drainage pipe, and water can be poured into the sterilization tank quantitatively.
3. According to the invention of claim 3,
The first water inlet of the dental chair unit is connected to the discharge port of the drain pipe, and the second water inlet is connected to the acid water and alkaline water generator via the open / close solenoid valve by the spit drain signal and the vacuum drain signal. The sterilization tank is connected to the acidic water discharge port and sterilizes by mixing, and the discharge port sends the overflowed treated water to the neutralization tank of the next stage. The second water inlet is connected to the discharge port of the acidic water and the alkaline water of the alkaline aquatic device through the open / close solenoid valve to neutralize the mixture, and the discharge port discharges the treated water overflowed to the outside drain pipe. The tank for neutralization discharged to the water, and an acidic water / alkaline water generator by electrolysis in which the water inlet is connected to tap water via an open / close solenoid valve,
Whenever the above drainage is performed, first sterilize by injecting and mixing acidic water into the sterilization tank, and discharge the sterilized water that has always overflowed from the trap-like tank to the neutralization tank in the next stage. Then, alkaline water is injected and mixed into the acidic sterilized treated water, neutralized, and neutral treated water that has always overflowed from the trap-like tank can be discharged to an external drain pipe. The opening / closing mechanism is simple, and environmental pollution problems can be solved by easy means.
[0025]
4. According to the invention of claim 4,
Since the acidic water / alkaline water generator performs electrolysis of tap water, it can easily generate acidic water for sterilization and alkaline water.
5. According to the invention of claim 5,
Since the sterilization tank mixes the waste water from the dental chair unit and the acidic water / acid water from the alkali generator to sterilize the pathogenic bacteria in the waste water, the treatment is easy.
6. According to the invention of claim 6,
The neutralization tank mixes the mixed water of the waste water from the sterilization tank and the acidic water with the alkaline water from the acidic water / alkaline water generator to neutralize the acidity, resulting in neutral treated water. Therefore, processing is easy.
[Brief description of the drawings]
FIG. 1 is a plan view of a dental chair unit having a waste water treatment apparatus.
FIG. 2 is a front view of a dental chair unit having a wastewater treatment device.
FIG. 3 is a block diagram showing a configuration of a waste water treatment apparatus having a temporary waste water storage tank.
FIG. 4 is a block diagram of a waste water treatment apparatus that is directly introduced from a drain pipe.
FIG. 5 is a block diagram of a wastewater overflow type wastewater treatment apparatus.
[Explanation of symbols]
1: Dental chair unit 2: Chair 3: Foot switch 4: Auxiliary table 5: Spiton 6: Light arm 7: Water circuit storage unit 8: Water supply / drainage pipe installation unit 9: Wastewater treatment device storage unit 10: Suction direction 11 : Suction tube 12: Vacuum filter 13: Vacuum tank suction direction 14: Suction tube 15: Air supply port 16: Joint drainage 17: Vacuum tank 18: Vacuum tank drainage 19, 20: Drainage pipe 21: Spitton drainage 22: Drainage Trap 23: Drainage pipe 23a: Water inlet 24: Temporary drainage storage tank 25: Storage drainage 26: Discharge outlet 27: First water inlet 28: Sterilization tank 28a: Second water inlet 29: Mixing of drainage and acidic water liquid 29a: discharge port 30: power supply unit 30a: electrode lead 31: tap water 31a: water conduit 32: water guide openings 32a, 32 b: discharge port 33: acid Water alkaline water generator 34: electrode 35: acidic water 36: acidic water conduit 37: wastewater pipe 38: external drain pipe 40a, 40b, 40c, 40d, 40e, 40f: closing the electromagnetic valve 41: pH sensor 41a: pH Signal line 42: pH meter 43a, 43b, 43c, 43d, 43e, 43f, 43g, 43h: Water level sensor 44: pH value adjustment instruction unit 45: Electromagnetic valve opening / closing control unit 46: Diaphragm 47: Alkaline water 48: For neutralization Tank 48a: first water inlet 48b: second water inlet 49: overflow outlet 50: signal line 51: water level signal line 52: power control signal line 53: alkaline water conduit 55: drainage signal generator 56 for vacuum tank : Spitton drain signal generators 57, 59: Drain signal line 60: Overflow outlet 61: Gargle water 62: Bowl washing 63: Stirring blade 64: Rotating machine 65: Sex treated water 67: main switch 68: suction Directive 69: drain pipe

Claims (6)

A wastewater treatment device provided at a terminal end portion of a distribution pipe of a dental chair unit,
(1) a first water inlet connected to the discharge port of the drain pipe via an open / close solenoid valve; and a first water inlet connected to the discharge port of acidic water and acidic water of an alkaline aquatic device via the open / close solenoid valve. And a sterilization tank having a discharge port connected to the first water inlet of the neutralization tank for mixing and neutralizing the acidic water and alkaline water of the next stage through an open / close solenoid valve,
(2) For neutralization through a water inlet connected to a water pipe via an open / close solenoid valve, a first discharge port for injecting acidic water into a sterilization tank via an open / close solenoid valve, and an open / close solenoid valve An electrolyzed acidic water / alkaline water generator having a second discharge port for injecting alkaline water into the tank;
(3) The first water inlet connected to the discharge port of the sterilization tank via the open / close electromagnetic valve, and the alkaline water discharge port of the acidic water / alkaline water generator via the open / close electromagnetic valve. A neutralization tank having a second water inlet, a discharge port connected to an external drain pipe via an open / close solenoid valve,
(4) Open and close each open / close solenoid valve according to the water level signal from the water level sensor of the sterilization tank, the acid water / alkaline water generator and the neutralization tank, or by the measured value of the pH value in the sterilization tank. A solenoid valve opening / closing controller to be controlled;
(5) A drainage treatment apparatus for a dental / dental chair unit, comprising: an acidic water / alkaline water generator; and a power supply unit for a solenoid valve opening / closing control unit.  A temporary drainage storage tank is provided at the end of the drainage pipe of the dental chair unit, and the first water inlet of the sterilization tank is connected to the discharge port of the drainage temporary storage tank via an open / close solenoid valve. The wastewater treatment apparatus for a dental chair unit according to claim 1. A wastewater treatment device provided at the end of the drainage pipe of the dental chair unit,
(1) a first water inlet connected to the discharge port of the drain pipe, a second water inlet connected to the acid water and the acidic water discharge port of the alkaline water generator via the open / close solenoid valve,
A sterilizing tank equipped with overflow port for sending the treated water overflowing into the next stage of the neutralization tank,
(2) a first water inlet for receiving overflowed treated water;
A second water inlet connected to the outlet of the acidic water and the alkaline water of the alkaline water generator via an open / close solenoid valve;
A neutralization tank having a discharge port for discharging the overflowed treated water to an external drain pipe, (3) a water inlet connected to the water pipe via an open / close solenoid valve,
A second water guide openings and a first acid water or alkaline water generator to the water guide openings by electrolytic with each connected outlet of the neutralization tank before Kimetsu fungus tank,
(4) an electromagnetic valve opening / closing control unit that controls opening / closing of each open / close solenoid valve by a spit and vacuum drainage signal, by a water level signal from an acidic water / alkaline water generator, or by a pH value of a sterilization tank; ,
(5) A drainage treatment apparatus for a dental / dental chair unit, comprising the acid water / alkaline water generator and a power supply unit for a solenoid valve opening / closing control unit.  The wastewater treatment apparatus for a dental chair unit according to any one of claims 1 to 3, wherein the acidic water and the alkaline water generator are generated by electrolyzing water.  The sterilization tank mixes waste water from the dental chair unit with acidic water and acidic water discharged from an alkaline water generator to sterilize pathogenic bacteria in the waste water. A wastewater treatment apparatus for a dental chair unit according to any one of the above.  The neutralization tank neutralizes the acidity by mixing acidic water and alkaline water discharged from the alkaline water generator into the mixed water of the waste water from the sterilization tank and acidic water, and neutralized water. The wastewater treatment apparatus for a dental chair unit according to any one of claims 1 to 5, wherein

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