JP2599983Y2 - Water purifier with sand separator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification apparatus for sewage containing sand, dust and the like, and more particularly to a water purification apparatus with a sand separator and a filtration device integrally provided.

[0002]

2. Description of the Related Art Various types of apparatuses for purifying sewage containing sand, dust and the like have been conventionally used.
The sand separator is configured to separate sand from the introduced sewage and send the separated water to the next process side. The separated earth and sand is stored in a sand separator and discharged as appropriate through a cock opening. On the other hand, as a filtration device, filthy water is introduced into a filter and filtered, or sewage is brought into contact with a filter medium (male stone, silica stone, π water material, etc.) to purify the water.
Some perform water reforming.

[0003]

As described above, each of the conventionally used sand separators, filtration devices and the like is formed as a single type. In addition, there is a device which is configured as a water purification system by connecting them in series. The sand separator removes earth and sand, but does not remove dust in the sewage, and of course does not perform water purification or reforming. On the other hand, when sewage is directly introduced into the filtration device, sand is clogged in the fine mesh of the filter, which causes a problem of reducing the filter function. On the other hand, in the case of a water purification system in which a sand separator and a filtration device are connected in series, the system structure becomes large-scale, the device cost becomes high, and a large floor area is required, which is contrary to space saving. Furthermore, maintenance is also difficult.

The present invention solves the above-mentioned problems, and is a sand separator capable of removing sand and dust, reducing the cost of the apparatus in a compact manner, and purifying and reforming water. It is intended to provide an attached water purification device.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cylindrical sand separator provided with a conduit for sewage containing sand and dust, and a filter medium. In a water purification device with a sand separator having a cylindrical filtration device provided above the sand separator and provided with a treated discharge pipe at the top, an opening communicating between the sand separator and the filtration device is provided. An intermediate chamber having an intermediate passage and an intermediate passage are formed, the intermediate chamber comprises a cylindrical body forming a space therein and connected to the sand separator and the filtration device, and the intermediate passage is connected below a center of the intermediate chamber. And a pipe-shaped cylindrical body protruding toward the sand separator side, wherein the introduction pipe is disposed in the sand separator along a tangential direction, and the filtration member It constitutes a water purification device with a sand separator comprising a filter medium disposed in and filling around the plurality of filters. Further, a water purification device for purifying and reforming water is attached to the downstream side of the filtration device, and the water supply pipe and the drainage pipe are connected via a switching valve to supply water source, used water side, drainage side, backwash. It is characterized by being connected to the water supply side and the water purification device side.

[0006]

The sewage is introduced from the tangential direction into the sand separator by the introduction pipe and is swirled inside. Therefore, the sediment contained in the sewage is separated and stored below the sand separator. The water from which the sediment has been separated passes through the intermediate passage, is filtered by the filtering member of the filtering device, and is discharged from the drain pipe. The filtered water is further purified by a water purifier,
Be reformed. On the other hand, by operating the switching valve, water for backwashing enters through the drain pipe, performs backwashing of the filtering member, and is discharged from the side separator side. As described above, sand removal, filtration, and water purification of wastewater are performed by the compact apparatus.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is an axial cross-sectional view showing the entire structure of the present embodiment, FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is an enlarged cross-sectional view taken along line BB of FIG. FIG. 4 is an enlarged sectional view showing a detailed structure around a filtration member of the filtration device.

As shown in FIG. 1, a water purification device 1 with a sand separator includes a sand separator 2 disposed on the lower side.
And a filtering device 3 mounted thereon and detachably connected thereto
And an intermediate passage 4 provided at a substantially central portion in the sand separator 2. A water pipe 7 is connected to the sand separator 2, and a drain pipe 8 is connected to the filtration device 3. The water pipe 7 and the drain pipe 8 are connected to the five-way switching valve 5. The five-way switching valve 5 is connected to the sewage side 1 via a water supply pump 9.
0 and backwash water supply source 11 and
2. Connected to the water purification device 6 and the like.

The sand separator 2 is formed of a hollow cylinder,
The lower side is formed in a tapered shape in order to smoothly discharge the accumulated soil and the like. A discharge valve 13 is provided at the lower end of the tapered diameter. In addition, the sand separator 2 is placed on the ground surface 15 by the columns 14. As shown in FIG. 2, the introduction pipe 7 is connected to the outer wall 16 of the hollow cylindrical body of the sand separator 2 along the tangential direction.

The intermediate passage 4 is formed by a hollow cylindrical body 17 forming an upper opening 19 and a lower opening 20, and a flange plate 18 connected to an upper side thereof. The flange plate 18 is flange-connected to the outer wall 16 of the sand separator 2, and the hollow cylindrical body 17 is disposed substantially at the center of the sand separator 2.

As shown in FIGS. 1, 3, and 4, the filtering device 3 includes a hollow cylindrical body 21, a large number (12 in the figure) of filters 22 housed therein, and an outer surface of the filter 22. The filter member 23 and the like filled in the gap between the hollow cylindrical body 21 and the inner wall of the hollow cylindrical body 21 as described above.
Is connected to a drain pipe 8. The hollow cylinder 21 is flanged to the upper end of the sand separator 2, and an intermediate chamber 2 is provided between the flange plate 24 and the flange plate 18 of the intermediate passage 4.
5 are formed. A cap 28 having an air chamber 27 is connected to the flange plate 26 at the upper end of the hollow cylindrical body 21. Note that an air discharge pipe 29 is connected to the cap 28. Further, a number of air escape holes 38 formed in the flange plate 26 communicate with the air chamber 27.

FIG. 4 shows the mounting structure of the filter 22 and the filter medium 23.
Shows the filled and stored state. A screw ring 31 forming a through hole 30 is screwed to the lower flange plate 24 sealed by the packing 33, and the through hole 30 communicates with the intermediate chamber 25.
A screw bush 32 is screwed into the screw ring 31. The screw bush 32 is fitted to the lower end of the filter 22. In addition,
The filter 22 is formed of a filter cylinder having an appropriate mesh. On the other hand, the upper end surface of the filter 22 is arranged in close contact with the flange plate 26. In addition, the flange plate 26 is used for the packing 3.
Sealed by 3,39. A support rod 35 is screwed onto the flange surface 34 of the screw bush 32. The support rod 35 is disposed in the filter 22 and has an upper end on the flange plate 26.
Penetrate through. The support bar 35 is fixed to the flange plate 26 by a nut 36. A gap having an appropriate volume is formed between the adjacent filters 22, 22, as shown in FIG.
Is filled.

The five-way switching valve 5 has connection ports A, B, C, D, E
Consists of The connection port A is connected to the wastewater side 10 and the backwash water supply source 11 via the water supply pump 9 and the switching valve 37.
The connection port B is connected to the water pipe 7, and the connection port C is connected to the drain pipe 8. The connection port is connected to the water purification device 6, and the connection port E is connected to the drainage side 12.

The detailed structure of the water purifier 6 and the detailed structure of the connecting pipe and the backwashing mechanism are omitted, but the water purifier 6 is configured to fill a water purifier for activating and reforming water. The purified water is supplied to the user.

Next, the operation of this embodiment will be described. From the sewage side 10, sewage containing earth and sand and dust is sent to the connection port A of the five-way switching valve 5 by the water supply pump 9 via the switching valve 37. In this case, since the connection port A and the connection port B communicate with each other, the sewage proceeds from the connection port B to the water guide pipe 7 and is introduced into the sand separator 2. As shown in FIG. 2, the water pipe 7 is connected to the outer wall 16 in a tangential direction, so that the sewage moves in the sand separator 2 in a vortex shape as shown in the figure. In this case, since the hollow cylinder 17 of the intermediate passage 4 extends downward by an appropriate length, sewage does not directly enter the hollow cylinder 17. Therefore, soil and the like contained in the sewage are separated and stored at the bottom of the sand separator 2. The water from which the earth and the like have been separated enters through the lower opening 20 of the hollow cylindrical body of the intermediate passage 4 and proceeds into the intermediate chamber from the upper opening 19. The soil and the like accumulated in the sand separator 2 are discharged as appropriate by opening the discharge valve 13. Water containing dust and the like enters the filter 22 of the filtering device 3 through the through hole 30 of the screw ring 31 shown in FIG. 4 and removes the dust and the like. The water filtered by the filter 22 is further filtered and purified by the filter material filled in the hollow cylindrical body 21 of the filtering device 3. The filtered and purified water is discharged from the drain pipe 8 as shown in FIG. 1 and proceeds to the connection port C of the five-way switching valve 5. In this case, since the connection port C and the connection port D communicate with each other, water proceeds to the connection port D and is introduced into the water purification device 6. The water further purified and reformed by the water purification device 6 is sent to the use side or the like. On the other hand, the air generated in the hollow cylindrical body 21 of the filtering device 3 flows through the air escape hole 38 into the air chamber 27 of the cap 28.
And is discharged from the air discharge pipe 29. Therefore, the water is discharged from the drain pipe 8 smoothly. As described above, sand removal, purification, and reforming of sewage are performed by passing through the water purification device with side separators 1 that is compactly integrated into an integrated structure.

When the water purifier 6 is not provided, the sand-removed and filtered water is sent directly from the connection port D to the use side. When backwashing is required, the switching valve 37 is switched, and normal water is sent from the backwash water supply source 11 to the connection port A side via the water supply pump 9. In this case, the connection port A and the connection port C are communicated, and the communication between the connection port C and the connection port D is closed, so that the normal water is sent to the drain pipe 8 side. Normally, the water flows backward through the filter medium 23 and the filter 22 and backwashes them, enters the intermediate chamber 25 from the through hole 30 of the screw ring 31, flows backward through the intermediate passage 4, and proceeds toward the water pipe 7. In this case, since the connection port B and the connection port E are in communication, the backwashed water flows from the connection port E to the drain side 1
Sent to 2.

In this embodiment, the illustrated sand separator 2 is employed, but a general known sand separator may be applied. Further, the connection of the water guide pipe 7 may not be orthogonal to the axis of the sand separator 2 as shown in the figure. Also, the shape and dimensions of the hollow cylindrical body 17 of the intermediate passage 4 are not limited to those shown. In the present embodiment, the contents of the filter 22 and the filter medium 23 are not described in detail, but appropriate known ones are selectively used depending on the purpose of use of the present apparatus.

[0018]

According to the present invention, the following remarkable effects are obtained. (1) Since the sand separator and the filtration device are integrated into a single unit and compact, the space can be saved and the equipment cost can be reduced. (2) Since the sand-removed water is sent to the filtration device side, the degree of clogging of the filter is reduced, and the filtration efficiency and the water purification efficiency can be improved. Further, the life of the filter and the like can be improved. (3) The tangential connection of the inlet pipes and the formation of the intermediate passage ensure that the sediment in the wastewater is separated. (4) Since the sand separator and the filtration device are detachably connected, maintenance can be easily performed. Also,
Because of the integral structure, the work of removing the connecting pipe and the like during maintenance is reduced, and the time can be reduced. (5) Since the backwash is possible, the filter and the filter medium in the filtration device can be used for a long time.

[Brief description of the drawings]

FIG. 1 is an axial sectional view showing an entire structure of an embodiment of the present invention.

FIG. 2 is an enlarged transverse sectional view taken along line AA of FIG.

FIG. 3 is an enlarged cross-sectional view taken along line BB of FIG. 1;

FIG. 4 is an enlarged axial sectional view showing a detailed structure inside the filtration device of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water purifier with a sand separator 2 Sand separator 3 Filtration device 4 Intermediate passage 5 Five-way switching valve 6 Water purifier 7 Water guide pipe 8 Drain pipe 9 Water supply pump 10 Sewage side 11 Backwash water supply source 12 Drain side 13 Discharge valve 14 Post 15 Ground surface 16 Outer wall 17 Hollow cylindrical body 18 Flange plate 19 Upper opening 20 Lower opening 21 Hollow cylindrical body 22 Filter 23 Filter medium 24 Flange plate 25 Intermediate chamber 26 Flange plate 27 Air chamber 28 Cap 29 Air discharge pipe 30 Through hole 31 Screw Ring 32 Screw bush 33 Packing 34 Flange surface 35 Support rod 36 Nut 37 Switching valve 38 Air escape hole 39 Packing

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B01D 36/00 B01D 21/02 B01D 21/26 B01D 29/50 B01D 29/90

Claims (3)

(57) [Scope of request for utility model registration] 1. A cylindrical sand separator having a water pipe for sewage containing sand, dust, and the like, and a filter medium housed therein.
It is located above the sand separator and at the top
Sa having a cylindrical body shape of the filter providing the discharge pipe of treated
In a water purification device with a sand separator, the sand separator
Has an opening communicating between the filter and the filter
An intermediate chamber and an intermediate passage are formed, and the intermediate chamber is empty inside.
A gap is formed and connected to the sand separator and the filtration device
And the intermediate passage is inside the intermediate chamber.
Connected below the heart and on the sand separator side
A pipe-shaped cylindrical body that is arranged to protrude,
Tubes are placed tangentially on the sand separator.
And the filter member is filled with a plurality of filters and around them.
A water purifier with a sand separator, characterized by comprising a filter medium loaded and arranged . 2. A water purification device with a sand separator, wherein a water purification device for purifying and reforming water is provided downstream of the filtration device. 3. The water pipe and the drain pipe are connected via a switching valve,
The water purifier with a sand separator according to claim 1 or 2, which is connected to a supply water source, a used water side, a drainage side, a backwash water supply side, and a water purifier side.