JPH06100190B2 - Solid-liquid discharge device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a solid-liquid discharge device capable of discharging both solid contents such as sludge and suspended matter in water and liquids such as water and waste oil.

[Conventional technology]

Conventionally, when discharging solids such as suspended solids in the water or sludge on the bottom of the water or liquids with a high specific gravity such as waste oil sinking on the bottom of the water, a combination of a vacuum pump and a chamber for collecting solids is used. Submersible pumps were used when draining pools and pools.

The conventional vacuum pump is not suitable for mass transportation even if it can discharge the solid mixture. When a solid content or waste oil in water is discharged using a vacuum pump, it is necessary to combine the chambers as described above and to vacuum up and collect the solid content and waste oil inside the chamber. However, even if the chambers are combined, the efficiency of the drainage is low due to the function of the vacuum pump. On the other hand, conventional submersible pumps are suitable for draining water, but when solids such as sludge and suspended solids in the water or liquid that sinks to the bottom of the water are taken in, the pumping performance deteriorates, so it is not suitable for collecting solids such as the above sludge. Is.

Under such circumstances, conventionally, the submersible pump and the vacuum pump are separately used according to the object to be discharged and the place as described above.

[Problems to be solved by the invention]

However, if the vacuum pump and the submersible pump are separately used as in the conventional case, it is necessary to prepare them separately, which not only leads to high cost, but also maintenance of them must be performed separately, so that maintenance cost is increased. There is a problem that it is expensive. Further, when draining water and discharging solids at the same time, separate power supplies for driving the vacuum pump and the submersible pump are required, which causes a problem of high running cost.

The present invention solves the above-mentioned problems, and a part having a vacuum pump function and a part having a submersible pump function are each configured as a unit, and these units can be attached to and detached from a drive unit common to them. In this way, not only the equipment cost but also the running cost of the maintenance cost can be reduced, and at the same time, the drainage and the solid content can be efficiently discharged without lowering the drainage performance and the solid content discharge performance. It is an object to provide a liquid discharge device.

[Means for solving problems]

In order to achieve the above object, the solid-liquid discharge device of the present invention,
At one end of the outer casing of the drive mechanism having the rotation output shaft, a bearing stand for supporting the tip of the rotation output shaft to which the impeller is attached in a protruding state is provided, and inside the pump casing that surrounds the outer casing. The formed fluid passage communicates with a fluid inlet opened at the outer peripheral end of the bearing stand, and a drive unit having a fluid outlet provided in the fluid passage; Between the submersible pump unit including a casing that forms a pump chamber communicating with the fluid inlet in the mounted state between the bearing unit and the drive unit, and in the mounted state between the bearing unit and the bearing unit. A casing forming a pump chamber is provided, and an air inlet and an air outlet communicating with the pump chamber and the air outlet communicating with the fluid inlet are provided in the casing. With a fluid passage is provided for, this to the inlet of the fluid passageway, the chamber having a filter to separate the solids from the fluid is composed of the vacuum pump unit thus provided.

[Action]

When the submersible pump unit of the drive unit is mounted in the solid-liquid discharge device having the above-described configuration, both units form one submersible pump. In the submersible pump thus configured, the impeller is rotated by the rotation of the rotary output shaft of the drive mechanism, and accordingly, the pump-up function, which is a function of a general submersible pump, is exhibited.

When the vacuum pump unit is attached to the drive unit from which the submersible pump unit has been removed, both the drive unit and the vacuum pump unit form one vacuum pump. In the vacuum pump configured as described above, the impeller is rotated by the rotation of the rotary output shaft of the drive mechanism, and accordingly, the vacuum-up function, which is a function of a general vacuum pump, is exhibited. And, in the state of use as such a vacuum pump, the chamber serves to collect the solid content separated by the filter, and the filter separates the solid content and discharges only the fluid (for example, water or waste oil). Useful for that.

〔Example〕

FIG. 1 is an overall vertical sectional view showing a state in which a submersible pump unit 2 is mounted on a drive unit 1, and FIG. 2 is a drive unit 1
It is a principal part longitudinal cross-sectional view which shows the state which attached the vacuum pump unit 3 to.

The drive unit 1 includes a drive mechanism 4, a bearing stand 5, and a pump casing 6. The drive mechanism 4 includes a cover 8 of a cylindrical outer casing 7, a rotation output shaft 12 supported by a lower wall 9 via ball bearings 10 and 11, and a rotor 13 fixed to the rotation output shaft 12.
And a stator 14 fixed to the outer casing 7. The bearing base 5 is attached to one end of the outer casing 7 by using a mounting bolt 15, and a fluid inlet 16 is opened at the outer peripheral end thereof. Further, the bearing base 5 supports the rotation output shaft 12 in a state where the tip portion 12a thereof projects. A mechanical seal 17 is provided between the bearing stand 5 and the outer casing 7, and a sealing material 18 for maintaining watertightness is provided between the bearing stand 5 and the rotary output shaft 12. There is. The pump casing 6 is fixed to the bearing stand 5 so as to surround the outer casing 7. The drive mechanism 4 is included in the pump casing 6 in an eccentric state. Then, the pump casing 6 and the outer casing 7
A space between the fluid passage 19 and the fluid passage 19 communicates with the fluid inlet 16, and the inner passage of the hose coupling 20 attached to the pump casing 6, that is, the fluid outlet is the fluid passage. It is connected to 19.
Reference numeral 21 is a handle provided on the drive unit 1, reference numerals 22 are cables for supplying drive power to the drive mechanism 4, and reference numeral 23 is a protection device for preventing heating.

The submersible pump unit 2 includes a casing 24 that can be attached to and detached from the drive unit 1. This casing 24 is a passage
While having an inner casing 25 and an outer casing forming 27, an opening 28 is provided in the inner casing 25, and further,
A filter 24a is provided in an opening around the casing 24. When the submersible pump unit 2 is mounted on the drive unit 1, a pump chamber 29 is formed between the inner casing 25 and the bearing stand 5, and the pump chamber 29 is formed.
Is communicated with the fluid inlet 16 of the bearing base 5. Further, in a state in which the impeller 100 is attached to the tip portion 12a of the rotary output shaft 12, the impeller 100 is arranged at an eccentric portion of the pump chamber 29, and the fluid sucked into the pump chamber 29 by the rotation of the impeller 100. For example, water or waste oil is pumped up from the fluid inlet 16 through the fluid passage 19.

The vacuum pump unit 3 also includes a casing 30 that can be attached to and detached from the drive unit 1. This casing 30 includes an inner casing 31, an outer casing 32, and both casings 31,3.
It has a partition wall 33 for partitioning the gap between the two, and air suction ports on both sides of the inner casing 31 that sandwich the partition wall 33.
34 and air outlet 35 are opened. Of the two fluid passages 36, 37 partitioned by the partition wall 33, a chamber 39 is provided at the inlet 38 of the fluid passage 36 communicating with the air suction port 34. The chamber 39 is equipped with a filter 40, and the solid content in the solid-liquid mixture flowing from the chamber inlet 41 is separated and collected by the filter 40, and only the liquid passes through the filter 40. Further, when the vacuum pump unit 3 is attached to the drive unit 1, a pump chamber is provided between the inner casing 31 and the bearing stand 15.
The outlet 42 of the fluid passage 37, which is formed with 43 and communicates with the air discharge port 35, is communicated with the fluid inlet 16 of the bearing base 5. Furthermore, in the mounted state, a negative pressure is generated inside the chamber 39 by the rotation of the impeller 200 attached to the tip portion 12a of the rotary output shaft 12, and the negative pressure sucks the solid-liquid mixture into the chamber 39. It is configured to.

The mechanism 50 for attaching / detaching the submersible pump unit 2 to / from the drive unit 1 and the mechanism 50 for attaching / detaching the vacuum pump unit 3 to / from the drive unit 1 include:
A known mechanism can be adopted. For example, even if a clamp is provided on the side of the submersible pump unit 2 and the side of the vacuum pump unit 3 and the engaging projection that is the opposite side of the clamp is provided on the drive unit 1, it is one that uses bolts and nuts. However, it is preferable to use a one-touch type that can be attached and detached because it does not take much time to attach and detach.

Next, the operation will be described.

When used as a submersible pump, the submersible pump unit 2 is mounted on the drive unit 1 as shown in FIG. When the impeller 100 is placed in water in this state and the drive power is supplied to the drive mechanism 4 via the cable 22 and the impeller 100 is rotated together with the rotation output shaft 8, the water that has passed through the filter 24a is transferred to the casing 2
At the same time as being sucked into the pump chamber 17 through the passage 27 and the opening 28 of FIG. 4, the water accumulated in the pump chamber 29 spreads to the surroundings by the centrifugal force, and passes through the fluid inlet 16 and the fluid passage 19 and the internal passage of the hose coupling 24. Pumped from.

Next, when it is used as a vacuum pump, the vacuum pump unit 3 is attached to the drive unit 1 as shown in FIG. In this state, it is put in water and the driving power is supplied to the driving mechanism 4 via the cable 22 to drive the rotary output shaft 8 and the impeller.
When 200 is rotated, the sealing liquid (water) enclosed in the pump chamber 43 spreads to the surroundings due to the centrifugal force, and a negative pressure is generated inside the chamber 39 due to the piston action of the water film generated at that time. A solid-liquid mixture containing a solid content such as sludge is sucked into the chamber 39 with a force corresponding to the above.
Then, the solid content in the solid-liquid mixture is separated and collected in the chamber 39 by the filter 40, and only the liquid such as water or waste oil passes through the inlet 38, the fluid passage 36, and the air suction port 34, and the pump chamber 43.
Is sucked into. Liquids such as water and waste oil sucked into the pump chamber 43 are discharged by the vacuum up action.
It is discharged from the hose coupling 20 through the 35, the fluid passage 37, the fluid inlet 16 and the fluid passage 19. The pump room 43
Even if the liquid flows in, if the vacuum pump constituted by the drive unit 1 and the vacuum pump unit 3 is a liquid ring type, no trouble will occur.

In such a solid-liquid discharging device, the impellers 100 and 200 having the same configuration may be used. In that case, it is desirable to use an impeller for a submersible pump. Also, the impeller 100,20
Different values may be used as 0. In that case, an impeller for a submersible pump may be used as the impeller 100, and an impeller for a vacuum pump may be used as the impeller 200. If different impellers are used, the threaded part should be
12b is provided, and nuts 44 and 45 are used for this screw part to impeller 10
It is advisable to attach and detach the 0,200.

Since the solid-liquid discharging device as described above can be easily carried by holding the handle 21 by hand, it can be easily used for various purposes in various places. For example, it can be used as a drainage device for civil engineering construction, a drainage device for bottom water / residual water, and a device for discharging sludge / dirt such as sludge / waste oil. Further, since the material can be aluminum alloy or plastic, weight reduction can be easily achieved by doing so.

As described above, according to the solid-liquid discharge device configured to selectively attach the submersible pump unit 2 and the vacuum pump unit 3 to the drive unit 1, all liquids and solids in water are discharged or collected very efficiently. it can.

〔The invention's effect〕

The solid-liquid discharge device of the present invention can be used also as a vacuum pump as a submersible pump by selectively attaching a submersible pump unit or a vacuum pump unit to one drive unit, and further, in the vacuum pump unit,
Since a filter and a chamber for separating and collecting solids from a solid-liquid mixture are provided, not only water and waste oil,
It is also possible to collect solids. Therefore, there is an effect that it becomes possible to discharge all liquids and solids in water. Further, since the drive unit is common to the submersible pump unit and the vacuum pump unit, there is an effect that the device cost, maintenance cost, and running cost are lower than those of the conventional one.

[Brief description of drawings]

1 and 2 show the usage state of the solid-liquid discharging device according to the embodiment of the present invention. FIG. 1 is an overall vertical sectional view when used as an underwater pump, and FIG. 2 is used as a vacuum pump. It is an important section sectional view at the time. 1 ... Drive unit 2 ... Submersible pump unit 3 ... Vacuum pump unit 4 ... Drive mechanism 5 ... Bearing stand 6 ... Pump casing 7 ... Outer casing 12 ... Rotation output shaft 12a ... Rotation output shaft tip 16 ... Fluid inlet 19 ... Fluid Passage 24 ... Casing 29 ... Pump chamber 30 ... Casing 34 ... Air inlet 35 ... Air outlet 36, 37 ... Fluid passage 38 ... Inlet 39 ... Chamber 40 ... Filter 43 ... Pump chamber 100, 200 ... Impeller

Claims (1)

[Claims] 1. A bearing stand for supporting the tip of the rotary output shaft, to which an impeller is attached, in a protruding state at one end of an outer casing of a drive mechanism having a rotary output shaft, and surrounding the outer casing. A drive unit in which a fluid passage formed inside the pump casing and a fluid inlet formed at an outer peripheral end of the bearing stand are in communication with each other, and a fluid outlet is provided in the fluid passage, and the drive unit. A submersible pump unit having a casing that forms a pump chamber communicating with the fluid inlet in the mounted state between the bearing unit and the bearing stand; and in the mounted state, the bearing. A casing that forms a pump chamber between the base and
The casing is provided with an air suction port and an air discharge port communicating with the pump chamber and a fluid passage communicating the air discharge port with the fluid inlet. And a vacuum pump unit provided with a chamber having a filter for separating the solid-liquid discharge device.