JPS605117Y2 - Septic tank maintenance vehicle - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a septic tank maintenance and management vehicle that can perform maintenance, inspection, cleaning, etc. so that the purification function of human waste septic tanks, combined septic tanks, etc. can be maintained at all times.

Currently, the method used is to remove all of the sludge-mixed water from the septic tank using a vacuum car and fill it with fresh purified water, but there are four problems as listed below.

1. The extracted sludge-mixed water is transported to a treatment plant and treated, but there is a loss in the round trip time to the treatment plant and the treatment plant's receiving capacity is almost overflowing.

2. If a large amount of water mixed with thin sludge from a septic tank is poured into a treatment plant built for green beds, the purification capacity will decrease.

3 If the entire amount is drained and purified water is added, normal purification processing capacity will be lost for several weeks until activated sludge is formed.

4 Three vehicles are required: a vacuum car, a car carrying maintenance equipment, and a water tank car.

Here, this idea divides the interior of the link mounted on the car body into two chambers, the first tank and the second tank, and connects the conduits led out from the manholes of these two tanks to the two ports of the first three-way tank. , the third port of this first three-way cock is connected to the first port of the four-way cock, and the suction side and discharge side of the vacuum pump are respectively connected to the other two ports of this four-way cock, and the four-way cock The fourth port of the second tank is connected to the exhaust pipe, one of the other two ports of the second three-way tank to which the conduit led out from the top of the first tank is connected is connected to the conduit leading to the hose reel, and the other is connected to the conduit leading to the hose reel. It is connected to a conduit that opens at the bottom of the second tank via a third three-way socket, and the third port of the third three-way socket is communicated with the inside of the first tank via the conduit, and from the bottom of the first tank. The conduit to be led out is opened at the top of the second tank through a second cock, and the other conduit led out from the bottom of the first tank is opened at the bottom of the second tank through a second two-way cock. The sludge and purified water are separated by appropriate operation of various cocks, vacuum pumps, hoses, etc. installed in these piping configurations, and the purified water is used as fill water to create a thin sludge mixed water. It is possible to maintain and manage the pure purification function of each septic tank without discharging the entire amount to a treatment plant, and furthermore,
With this idea, by installing a box that can store maintenance equipment, it is possible to perform maintenance, inspection, and cleaning with one unit.

Next, this invention will be explained with reference to the illustrated embodiment.

FIGS. 1 to 4 show an example of a vehicle dedicated to septic tank maintenance and management of this invention, in which the inside of a tank 4 mounted on a chassis 3 of a vehicle body 2 equipped with a driver's cab 1 is separated by a partition plate 5. A conduit 10 is divided into two chambers, a first tank 6 and a second tank 7, and is led out from the manhole portions 8 and 9 of these various types 6 and 7.
10' to the first three-way socket 11's two ports 12.13
and the third port 14 of this first three-way connector 11
via a conduit 16 with an air cleaner 15 in the middle,
Connected to the first port 18 of the four-way cock 17, conduits 22.23 are led out from the other two ports 19.20 of the four-way cock 17, respectively connected to the suction side and the discharge side of the vacuum pump 21. .

Note that an oil separator 24 (FIG. 4) is appropriately provided within the conduit 23.

Note that the fourth port 25 of the four-way cock 17 is a conduit 26.
The exhaust pipe 27 is equipped with a deodorizing device.

Hereinafter, with particular reference to FIG. 4, one of the other two ports 31 and 32 of the second three-way tank 30 having a port 29 to which the conduit 28 led out from the upper part of the first tank 6 is connected, the port 31 is The port 32 is connected to a hose reel 34 via a conduit 33, and the port 32 is communicated via a conduit 35 to a port 37 of a third three-way pot 36.
Of the other two ports 6 , port 38 is connected to a conduit 39 that opens to the bottom of the second tank 7 , and port 40 is connected to a conduit 41 that opens to the bottom of the first tank 6 .

A conduit 42 led out from the lower part of the first tank 6 is opened to the upper part of the second tank 7 through a cock 43, and another conduit 44 led out from the lower part of the first tank 6 is connected to the second tank 7. It is opened at the bottom of the second tank 7 via the two-way socket 45.

Note that 49 is a shutoff valve for discharging the drain from the second tank 7.

Returning again to FIGS. 1 to 3, a septic tank maintenance and management equipment storage box 47 is attached to the outer surface of the tank 4.
The hose 48 wound around the hose reel 34 is a small diameter suction hose in order to facilitate suction control.

Transparent windows 49 and 50 are provided on the outer surface of the tank 4 for each type 6 and 7 to confirm the capacity and sludge separation status.

Note that instead of the shutoff valve 46 for drain discharge of the second tank 7, a sludge discharge/cleaning port 51 (FIG. 3) which is always closed may be used.

The manner of use of the septic tank maintenance and management vehicle of this invention having the above configuration will be described below with reference to the explanatory diagrams shown in FIGS. 4 to 15.

In each of these figures, VAC indicates a vacuum state, ATM indicates an atmospheric pressure state, and PRES indicates a pressurized state.

First, Fig. 4 shows the state in which water is drawn into the second tank 7.
By activating the vacuum pump 21 to create a vacuum inside the second tank 7, the filled water Q is sucked into the second tank 7 from the hose 48 through the conduit 35.

Next, the vehicle travels to the destination while keeping the vacuum pump 21 in the neutral position (FIG. 5).

At this time, the first three-way cock 11, the second three-way cock 30, the third three-way cock 36, the second two-way cock 43, the second two-way cock 45, and the four-way cock 17 are all kept closed.

When the destination is reached, the first three-way pot 11 and the second three-way pot 30 are switched to the first tank 6 side as shown in FIG. The sewage in the septic tank is sucked through 48 (the amount is Ql).
).

When the suction is completed, the vacuum pump 21 is kept neutral and the second three-way pot 30 is closed.

In this), both the first tank 6 and the second tank 7 are maintained at atmospheric pressure, and the amount of water in each is Q, , Q,.

This is the state shown in FIG.

Next, as shown in FIG.
By opening the tank 7 and connecting the vacuum pump 21 to the pressure side and the third three-way tank 36 and the second three-way tank 30 to the discharge side, a part of the water Q3 in the second tank 7 is transferred to the septic tank. Then, by maintaining the vacuum pump 21 in a neutral state and closing the second three-way tank 30 and the third three-way tank 36, the inside of the second tank 7 is brought to atmospheric pressure (the state shown in FIG. 9).

Next, the first three-way cock 11 is opened to the second tank 7 side, the vacuum pump 21 is driven to the vacuum generation side, and the third cock 43 is opened, thereby transferring the wastewater in the first tank 6 to the second tank 7. (Fig. 10), and then the vacuum pump 21.
into the neutral state, close the 1st cock 43, and turn the 11th
As shown in the figure, the inside of the second tank 7 is brought to atmospheric pressure.

Next, open the first three-way pot 11 toward the second tank 7,
By operating the vacuum pump 21 in a pressurized state, the inside of the second tank 7 is pressurized (Fig. 12), the first three-way tank 11 is closed, the vacuum pump 21 is set to neutral, and the water volume is 9°-Q3.
The inside of the second tank 7, which is at +Q1, is pressurized for a certain period of time to perform a consolidation sinking action.

This is the state shown in FIG. After the consolidation and sinking action is performed, the third three-way tank 36 is operated so that the conduits 39 and 41 communicate with each other, and the vacuum pump 21 is driven to pressurize the second tank 7. The consolidated sludge in tank 7 is transferred to the first tank 6 (Fig. 14), and once that is finished, the third three-way tank 3
6 is closed and the vacuum pump 21 is placed in a neutral state, the inside of the second tank 7 is brought to atmospheric pressure, and the first tank 6 accommodates Q4 of consolidated sludge, and the second tank 7 stores Q4 of compressed sludge.

-Q, +Q□-Q4 amounts of water have been accommodated, and the work ends.

[Brief explanation of the drawing]

Figure 1 is a side view of an embodiment of this invention, Figure 2 is its top view, Figure 3 is its rear view, and Figures 4 to 15 are illustrations of the work order by the septic tank maintenance vehicle of this invention. It is an explanatory diagram. In the diagram, 2...car body, 4...
Tank, 5... Partition plate, 6... First tank, 7... Second tank, 8.9... Manhole section, 11... ...1st Mikata Kotuku, 17...
... Four-way cock, 21 ... Vacuum pump, 27.
...Exhaust pipe, 30...Second three-way exhaust pipe,
36...Third three-way Kotuku, 43...First two-way Kotuku, 45...Second two-way Kotuku, 47
...Septic tank maintenance management equipment storage box, 48...
... (Small diameter suction) hose, 49.50 ... See-through window, 51 ... Sludge discharge and cleaning port.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. The inside of the tank mounted on the vehicle body is divided into two chambers, the first tank and the second tank, and the conduit led out from the manholes of these two tanks is connected to the two ports of the first three-way tank. and this first
Connect the third port of the three-way cock to the first port of the four-way cock, connect the suction side and discharge side of the vacuum pump to the other two ports of the four-way cock, and connect the fourth port of the four-way cock to the other two ports of the four-way cock. The port is communicated with the exhaust pipe, and one of the other two ports of the second three-way tank to which the conduit led out from the upper part of the first tank is connected is connected to the conduit leading to the hose reel, and the other is connected to the conduit leading to the hose reel. It is connected to a conduit opening at the bottom via a third three-way hook, and the third port of the third three-way hook is communicated with the inside of the first tank via the conduit.
A conduit led out from the lower part of the tank is opened to the upper part of the second tank through a second two-way cock, and another conduit led out from the lower part of the first tank is opened to the second tank through a second two-way cock. A septic tank maintenance vehicle with a piping configuration that opens at the bottom of the tank. 2. The septic tank maintenance and management vehicle according to claim 1, in which the hose wound around the hose reel is a small-diameter suction hose. Each of the first and second tanks, which are divided into 32 chambers, is equipped with a see-through window for checking the capacity and sludge separation status.
A septic tank maintenance vehicle as set forth in claim 1 of the utility model registration claim. 4. The septic tank maintenance and management vehicle as set forth in claim 1 of the utility model registration claim, which is provided with a sludge discharge and cleaning port on the side of the front chamber, that is, the second tank.