JPH0337685Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is a fiber-reinforced resin (hereinafter referred to as FRP).
The present invention relates to an upward filtration device that can be manufactured in a factory.

[Conventional technology]

Domestic water filtration equipment, which is often used in remote areas without water supply facilities, has conventionally been made of reinforced concrete, and is a large type with a preliminary filtration chamber, a main filtration chamber, and a flow rate adjustment chamber arranged side by side. Since it is a unique product, it is manufactured and constructed each time at the installation site.

[Problem that the invention attempts to solve]

As a result, the construction period is long (approximately three months), and the cost of transporting materials and manufacturing costs increase significantly.

[Means for solving problems]

This invention has a main filtration chamber in the center of a filter tank made of glass fiber reinforced resin, a preliminary filtration chamber and a flow rate adjustment chamber on the upper side of the main filtration chamber, and a sedimentation chamber below the main filtration chamber via a perforated plate. An intermediate sludge draining pipe having an inflow hole on the upper surface is provided on the upper surface of the main filter material in the main filtration chamber, and a washing pipe with a large number of water fountain holes perforated on the upper surface is provided on the upper surface of the perforated plate. The preliminary filtration chamber and the sedimentation chamber are connected through a communication pipe, and the water collection device installed on the inside upper part of the main filtration chamber is connected to the flow rate adjustment chamber through a water conduit, and the raw water introduced into the preliminary filtration chamber is ,
After preliminary filtration with a preliminary filtration material, the main filtration material of the main filtration chamber is passed through a communication pipe from below to be purified, and then discharged from the water collection device through a flow rate adjustment chamber. By making it possible to supply raw water to the cleaning pipe, the above-mentioned problems are solved.

[Effect]

In the filtration device of the present invention, since the filtration tank is made of FRP, it can be manufactured in a factory in a short period of time (7 to 10 days) and is lightweight.

In addition, since the preliminary filtration chamber and the flow rate adjustment chamber are arranged at the upper side of the main filtration chamber, the filtration tank is small and can be easily transported to remote areas.

The sludge is always automatically drained and the main filter medium is very easily cleaned.

〔Example〕

The drawing shows one embodiment of the present invention.
A preliminary filtration chamber 2 and a flow rate adjustment chamber 3 are formed in the left and right upper portions of the cylindrical filtration tank 1, which is closed at both ends. A perforated plate 5 is placed on a horizontal support stand 4 provided slightly above the bottom plate 1a of the filtration tank 1, and above the perforated plate 5 are a main filtration chamber 6,
Similarly, the lower part is a precipitation chamber 7.

2a and 3a are inspection ports for the preliminary filtration chamber 2 and flow rate adjustment chamber 3, respectively; 2b and 3b are lid plates for the respective chambers 2 and 3; 8 is an inspection port for the main filtration chamber 6;
Reference numeral 9 indicates the cover plate thereof, and 10 indicates an exhaust pipe extending through the cover plate 9.

The preliminary filtration chamber 2 is provided with a raw water pipe 11 that penetrates its side wall from the outside and then bends upward, and an aeration device 12 is provided at the upper end of the raw water pipe 11. 13 is a raw water valve installed in the raw water pipe 11, 14
is an overflow pipe in the preliminary filtration chamber 2.

A horizontal perforated plate 15 is provided slightly above the bottom wall 2c of the preliminary filtration chamber 2, and on the perforated plate 15 is deposited a preliminary filter material 16 that becomes finer as it goes upward. The bottom wall 2c of the preliminary filtration chamber 2 and the inside of the precipitation chamber 7 are communicated with each other through a communication pipe 17.

18 is a sludge drainage pipe installed at the bottom of the settling chamber 7;
9 is a mud drain valve.

A cleaning pipe 20 is mounted on the perforated plate 5 of the main filtration chamber 6 and is bent so that its planar shape is a rectangular frame shape.
The cleaning pipe 20 is connected to the raw water pipe 11 through a connecting pipe 21 . On the top surface of the cleaning tube 20,
A large number of fountain holes 22 are bored. 23 is a cleaning valve.

A main filter material 24 is deposited on the upper surface of the perforated plate 5 and the cleaning tube 20, and the particles become finer toward the top.

A horizontal intermediate sludge draining pipe 25 having an inflow hole (not shown) on the top surface is provided at the center of the upper surface of the main filter medium 24, and one end of the intermediate sludge draining pipe 25 penetrates the side wall of the filter tank 1 and extends outward. and this protrusion has a
A mud drain valve 26 is provided.

A horizontal water collection pipe 27 having an inflow hole (not shown) on the upper surface is provided in the upper part of the main filtration chamber 6, and the water collection pipe 27 is connected to the flow rate adjustment chamber 3 through a water guide pipe 28.

29 is a V-notch plate provided in the flow rate adjustment tank 3;
30 is a water purification pipe led out from the flow rate adjustment chamber 3 downstream of the V-notch plate 29.

In the above-mentioned filtration device of the present invention, the raw water pipe 1
The raw water that has flowed into the preliminary filtration chamber 2 from 1 is aerated by the aeration device 12, coarse filth is removed by the preliminary filtration material 16, and passed through the communication pipe 17 to the sedimentation chamber 7.
flows down to.

Next, the raw water is passed through the main filter medium 24 in the main filtration chamber 6.
The water rises from below at a slow speed, and during that time, the contained sludge is filtered and becomes purified water, which flows into the water collection pipe 27.
The water flows through the water conduit 28 into the flow rate adjustment chamber 3,
Passing through the V-notch plate 29, the water is purified by the water pipe 30.
Directed to water tank or point of use.

The sludge that settles while the prefiltered raw water moves through the settling chamber 7 at a slow speed and the sludge that settles from the main filter material 24 settles on the bottom of the settling chamber 7, so open the sludge valve 19 at any time. , is discharged from the mud removal pipe 18.

In addition, when the raw water passes through the main filter material 24, the sludge adhering to the main filter material 24 is stirred up, and a small amount of sludge mixed into the purified water gradually passes through the main filter material 24.
However, this can be discharged from the intermediate sludge drain pipe 25 by opening the sludge valve 26 at any time.

When the main filter medium 24 becomes clogged with sludge after long-term use, close the raw water valve 13 to stop the inflow of raw water, and open the sludge valve 19 to empty the filter tank 1. When the cleaning valve 23 is opened and raw water is sprayed from the fountain hole 22 of the cleaning pipe 20, the adhered sludge is washed away, flows down into the settling chamber 7, and flows out from the sludge drain pipe 18.

[Effect of idea]

Since the filter tank is made of FRP, at the factory,
It can be manufactured in a short period of time, is extremely lightweight, and since the preliminary filtration chamber and flow rate adjustment chamber are located above the main filtration chamber, the entire device is small compared to its filtration capacity. It is small and easy to transport and install in remote areas.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional plan view taken along line A--A in FIG. 1, with the filter medium removed. 1...Filter tank, 1a...Bottom plate, 2...Preliminary filtration chamber, 3...Flow rate adjustment chamber, 2a, 3a...Inspection port,
2b, 3b... Lid plate, 4... Support stand, 5... Porous plate, 6... Main filtration chamber, 7... Sedimentation chamber, 8... Inspection port, 9... Lid plate, 10... Exhaust pipe , 11... raw water pipe, 12... aeration device, 13... raw water valve, 14...
... Overflow pipe, 15 ... Perforated plate, 16 ... Preliminary filter material, 17 ... Communication pipe, 18 ... Sludge removal pipe, 19 ...
Sludge removal valve, 20...Washing pipe, 21...Connecting pipe, 22
... Fountain hole, 23 ... Washing valve, 24 ... Main filter material, 25 ... Intermediate sludge drainage pipe, 26 ... Sludge drainage valve, 27
... Water collection pipe, 28 ... Water conduction pipe, 29 ... V-notch plate, 30 ... Water purification pipe.

Claims (1)

[Scope of utility model registration request] A main filtration chamber is provided in the center of the glass fiber-reinforced resin filtration tank, a preliminary filtration chamber and a flow rate adjustment chamber are provided on the upper side of the main filtration chamber, and a sedimentation chamber is provided below the main filtration chamber via a perforated plate. On the top surface of the main filter material in the filtration chamber,
An intermediate sludge draining pipe having an inflow hole is provided on the upper surface, and a cleaning pipe having a large number of water fountain holes on the upper surface is provided on the upper surface of the perforated plate, and the preliminary filtration chamber and the settling chamber are connected through a communication pipe. Then, the water collection device installed in the upper part of the inside of the main filtration chamber is connected to the flow rate adjustment chamber with a water conduit pipe, and the raw water introduced into the prefiltration chamber is prefiltered with a prefiltration material. After that, the main filtration material of the main filtration chamber is passed through the settling chamber from below to be purified, and the water is discharged from the water collection device through the flow rate adjustment chamber, and raw water can also be supplied to the washing pipe. An upward filtration device made of glass fiber reinforced resin.