JPH09203399A - Sanitary tank pump device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure given wastewater transfer quantity without affected by the water level of a treatment tank, improve the operating reliability of a sanitary tank pump device. SOLUTION: This sanitary tank pump device is arranged so as to connect pump vessels 8, to be arranged below the liquid level of a treatment tank provided on a sanitary tank, to a blower 12 via air supply pipes 11; and also connect inflow pipes 9 and discharge pipes 10 to the pump vessels 8; and in the inflow pipes, so as to arrange one and the other ends in the lower parts of the pump vessels and in the vicinity of the upper surfaces of the pump vessel insides respectively; while in the discharge pipes, so as to arrange one and the other ends in the vicinity of the lower surface of the pump vessel insides and facing the other treatment tank respectively. One blower, equipped with plural air chambers, is individually connected to plural pump vessels, via discharge ports provided on the respective air chambers, to independently supply air directly to the pump vessel.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a septic tank pump device. More specifically, the present invention relates to a septic tank pump device which is capable of ensuring a predetermined amount of sewage transfer without being affected by the water level of a treatment tank and which has excellent operational reliability.

[0002]

2. Description of the Related Art A septic tank for purifying sewage has been known for a long time. With the growing tendency to protect the global environment, a septic tank has been installed in each household, and not only human waste but also daily cooking, washing, bathing, etc. There is a movement to purify the domestic wastewater generated by the wastewater.

The septic tank can be shown, for example, in FIG. 3, and the septic tank shown in FIG. 3 is a combined treatment septic tank which can be installed in a household unit and can purify not only human waste but also domestic wastewater. This is an example. The combined treatment septic tank includes an anaerobic tank (2) provided with a filter material (1), a contact aeration tank (4) provided with a contact material (3), a precipitation tank (5) and a disinfection tank (6). Equipped with each of these tanks,
The sewage is sequentially arranged from the inflow side to the outflow side.

The septic tank is also provided with a transfer device (7) for transferring the wastewater treated in each tank to another tank. By this transfer device (7), the sewage treated in the anaerobic tank (2) is transferred to the next contact aeration tank (4) to enable aeration treatment, and also in the contact aeration tank (4). By returning the treated wastewater to the anaerobic tank (2) again and repeating the purification treatment, it is possible to further reduce the amount of pollutants contained in the wastewater.

Various types of transfer devices (7) have been provided so far, and a pump device utilizing air pressure is known. For example, as shown in FIG. 4, the pump device includes a pump container (8) arranged below the water surface of each tank provided in the septic tank. Connected to the pump container (8) are an inflow pipe (9) serving as a flow path for taking the waste water into the container and a discharge pipe (10) serving as a flow path for transferring the taken waste water to another treatment tank. Has been done.

The inflow pipe (9) has one end located below the pump container (8) and the other end located near the upper surface inside the pump container (8). Meanwhile, the discharge pipe (10)
Has one end arranged near the lower surface inside the pump container (8) and the other end penetrating the upper surface of the pump container (8) to face another processing tank. A blower (12) is connected to the pump container (8) via an air supply pipe (11). The air sent from the blower (12) becomes the driving force of the pump device.

That is, when air is sent into the pump container (8) through the air supply pipe (11) by the operation of the blower (12) in a state where the pump container (8) is filled with dirty water in the treatment tank. The air pressure causes the waste water in the pump container (8) to flow out through the discharge pipe (10).
When the air supply from the blower (12) is stopped, the wastewater in the treatment tank flows into the pump container (8) from the inflow pipe (9) due to the head pressure. By repeating this operation as one stroke, transfer of a predetermined amount of dirty water is realized.

If a plurality of transfer devices (7) composed of such pump devices can be driven by one blower (12), that is, a plurality of pump containers (8) will be one blower (12). If it can be connected, the structure of the pump device can be simplified and space can be saved.
It is expected that the cost of the pump device and eventually the septic tank will be reduced.

[0009]

However, as shown in FIG. 4, it is not easy to connect a plurality of pump vessels (8) to one blower (10) and drive them. there were. This is because when the waste water is introduced into the pump container (8) through the inflow pipe (9), as shown in FIG.
This is because when the water level of the sewage differs depending on the treatment tank in which the pump container (8) is arranged, the timing of introducing the sewage is deviated, as shown in FIG.

For example, FIG. 4 shows two pump vessels (8).
Is connected to one blower (12), but when the water level in one treatment tank is lower than the other, the inflow of sewage into the pump container (8) on the low water level side (left side in FIG. 4) is shown. The time will increase. Therefore, the high water level side (right side of Fig. 4) is 1
Even though the stroke operation has been completed, it goes into a standby state. Alternatively, when the high water level side finishes the operation of one stroke, the low water level side shifts to the next inflow mode in the state where one stroke is not finished. In the pump device, the transfer amount of dirty water per unit time according to the installed water level is set as a required performance, so the standby state like the former is nothing but dead time, and if there is such dead time, A certain amount of wastewater transfer will not be achieved.
Further, in the latter case, the transfer capacity of the pump device is reduced because the low water level side cannot transfer a predetermined amount of dirty water.

Therefore, the deviation of the timing of inflow of sewage is
This causes a decrease in the sewage transfer performance of the pump device. For example, when one pump container (8) is installed in a water level fluctuation tank in which the water level fluctuates, and the other is installed in a water level invariant tank in which the water level does not fluctuate, the water level difference becomes large, and the above-mentioned problems become apparent. . Further, such a problem is similarly recognized when, for example, a U-shaped pipe is provided in one pump container (8) and the U-shaped pipe is connected to the upper part of the inflow pipe (9) with a pressure adjusting mechanism. To be

The present invention has been made in view of the above circumstances, solves the drawbacks of the conventional septic tank pump device, and secures a predetermined amount of sewage transfer without being affected by the water level in the treatment tank. It is an object of the present invention to provide a septic tank pump device that is capable of performing and has excellent operational reliability.

[0013]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a pump container, which is disposed below the liquid surface of a treatment tank provided in a septic tank, connected to a blower via an air supply pipe. In addition, an inflow pipe and a discharge pipe are connected to this pump container, one end of the inflow pipe is arranged below the pump container, and the other end is arranged near the upper surface inside the pump container. In the septic tank pump device, one end of which is arranged near the lower surface inside the pump container and the other end of which is arranged so as to face another processing tank, one blower equipped with a plurality of air chambers is provided for each air chamber. (EN) A septic tank pump device characterized in that it is individually connected to a plurality of pump containers via a discharge port provided in (3), and that direct air supply to the pump containers can be performed independently.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the septic tank pump device of the present invention will be described in more detail with reference to the accompanying drawings.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing an example of a preferred embodiment of the septic tank pump device of the present invention. The pump device is provided with a pump container (8) arranged below the water surface of each tank provided in the septic tank, and has an inflow pipe (9) serving as a flow path for taking in the waste water into the container, and the taken waste water. Is connected to a discharge pipe (10) that serves as a flow path when transferring the gas to another processing tank.

The inflow pipe (9) has one end located below the pump container (8) and the other end located near the upper surface inside the pump container (8). Meanwhile, the discharge pipe (10)
Has one end disposed near the lower surface inside the pump container, extends through the upper surface of the pump container (8), and has the other end facing another processing tank. In addition, a blower (1
There is only one 2), and this one blower (1
2) Each pump container (8) has an air supply pipe (1)
1) is connected. The air supply pipe (11) is
Unlike the conventional example shown in FIG. 4, it is not branched from the middle but is individually connected to each air chamber provided in the blower (12).

FIG. 2 is a cross-sectional view of essential parts showing an example of the septic tank pump device blower of the present invention. The blower (12) shown in FIG. 2 is an electromagnetic piston type positive displacement blower. This electromagnetic piston type positive displacement fan (1
In 2), a pair of left and right electromagnet blocks (13) are provided, and a movable magnet (14) made of a permanent magnet capable of reciprocating in the horizontal direction with respect to the electromagnet blocks (13) includes an electromagnet block (13). ) Is provided on the axis. The movable magnet (14) has a diaphragm (15).
Is connected to both ends of the diaphragm (15)
Each face a separate air chamber (16). The air chamber (16) is provided with a suction port (19) equipped with a suction valve (17) and a discharge valve (18) and a discharge port (20). The air supply pipe (11) connected to the pump container (8) shown in FIG. 1 is connected to the discharge port (20) side of the air chamber (16) and communicates with the air chamber (16). There is.

The portion shown in FIG. 2 can be arranged, for example, in the noise reduction tank, and the air supply pipe (11) can be drawn out through the noise reduction tank. In such a blower (12), when a current flows through the electromagnet block (13), a driving force is generated between the movable magnet (14) and the movable magnet (14) reciprocates. This reciprocating motion is transmitted to the diaphragm (15) to alternately open and close the intake valve (17) and the discharge valve (18) of the air chamber (16). Then, after being sucked into the air chamber (16) and compressed, the air is discharged toward the air supply pipe (11) and directly supplied to each pump container (8) shown in FIG.

When air is sent into the pump container (8) through the air supply pipe (11) by the operation of the blower (12) while the pump container (8) is filled with the dirty water in the treatment tank, The pneumatic pressure causes waste water in the pump container (8) to flow out through the discharge pipe (10). Blower (1
When the air supply from 2) is stopped, the sewage in the treatment tank flows into the pump container (8) from the inflow pipe (9) due to the head pressure. If this operation is repeated as one stroke, dirty water is transferred.

In this blower (12), air is sent to each pump container (8) by an air chamber (1
Since it is performed independently from 6), the operation in the pump container (8) is independent for each pump container (8). Therefore, even if there is a water level difference in the treatment tank in which the pump container (8) is arranged, the influence as described above is not affected at all, and the wastewater transfer that is not affected by the water level in the treatment tank is realized. Can be a predetermined amount. The amount of sewage transferred is stably secured, and the operational reliability of the pump device as the transfer device is improved. Further, since only one blower (12) is required, the cost of the transfer device can be reduced and the installation space can be saved.

The above-described operation of the pump device is exactly the same when the pump container (8) is provided with a U-shaped tube with a pressure adjusting function. 1 and 2 illustrate the case where two pump containers (8) are connected to one blower (12), the present invention is not limited to the example of FIG. 1 in particular. Alternatively, the number of pump vessels (8) to be connected may be plural, and three or more pump vessels (8) can be connected.

Further, the blower (12) may have various configurations. The blower (12) includes a plurality of air chambers (16), and if it can be connected to one pump container (8) through the air supply pipe (11), other configurations are not particularly limited. Absent.

[0023]

As described above in detail, according to the present invention, a predetermined amount of sewage can be transferred, and the sewage can be transferred in a predetermined amount without being affected by the water level of the treatment tank in which the pump container is arranged. . The operational reliability of the pump device is improved. Further, the cost of the pump device as the septic tank transfer device can be reduced, which is also effective in saving the installation space.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an example of a preferred embodiment of a septic tank pump device of the present invention.

FIG. 2 is a main-portion cross-sectional view showing an example of a blower.

FIG. 3 is a configuration diagram showing a combined treatment septic tank which is an example of the septic tank.

FIG. 4 is a configuration diagram showing a conventional septic tank pump device.

[Explanation of symbols]

 1 Filter medium 2 Anaerobic tank 3 Contact material 4 Contact aeration tank 5 Precipitation tank 6 Disinfection tank 7 Transfer device 8 Pump container 9 Inflow pipe 10 Discharge pipe 11 Air supply pipe 12 Blower 13 Electromagnet block 14 Movable magnet 15 Diaphragm 16 Air chamber 17 Inhalation Valve 18 Discharge valve 19 Suction port 20 Discharge port

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takayoshi Nakaoka 1048 Odakadoma, Kadoma City, Osaka Matsushita Electric Works, Ltd.

Claims (2)

[Claims] 1. A pump container disposed below the liquid surface of a treatment tank provided in a septic tank is connected to a blower via an air supply pipe, and an inflow pipe and a discharge pipe are connected to this pump container, The inflow pipe has one end arranged below the pump container and the other end arranged near the upper surface inside the pump container.
On the other hand, one end of the discharge pipe is disposed in the vicinity of the lower surface inside the pump container, and the other end is disposed so as to face another processing tank.
A septic tank characterized in that a blower unit is individually connected to a plurality of pump containers via a discharge port provided in each air chamber to enable direct air supply to the pump containers independently. Pump device. 2. The blower is an electromagnetic piston type positive displacement blower, which is provided with an electromagnet, is provided with a magnet movable with respect to the electromagnet, and a diaphragm is connected to the movable magnet, and the electromagnet has a current A driving force is generated between the movable magnet and the movable magnet when the air flows, and the driving force is transmitted to the diaphragm to suck air into a plurality of air chambers and compress the air to discharge it from the discharge port. Item 1
The septic tank pump device described.