JPH0634718U - Water purifier with sand separator - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a compact water purification device with an integrated structure capable of removing sand from sewage, filtering, purifying, and reforming. This will reduce equipment costs and save space. [Structure] A filter device 3 for accommodating a filter 22, a filter medium 23 and the like is detachably mounted on a sand separator 2. By forming the intermediate passage 4 between the two, sand-removed water is sent to the filtering device 3 side through the intermediate passage 4. Since the water conduit 7 is tangentially connected to the sand separator 2, a vortex flow is generated in the sand separator 2 to effectively separate the earth and sand. The water from which sand has been removed and filtered flows from the drain pipe 8 to the five-way switching valve 5
It is sent to the water purification device 6 via the above, and further purified and reformed and sent to the use side. In addition, backwashing is performed by switching the five-way switching valve 5 and the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water purification device for wastewater containing sand, dust and the like, and more particularly to a water purification device with a sand separator integrally provided with a sand separator and a filtration device.

[0002]

[Prior art]

 Conventionally, various types of waste water purification devices containing sand and dust have been adopted. The sand separator is configured to separate sand from the introduced wastewater and send the separated water to the next process side. The separated earth and sand are stored in the sand separator and appropriately discharged through the cock opening. On the other hand, there are filters that introduce sewage into the filter to filter it, and filters that bring sewage into contact with a filter material (barite stone, silica stone, π water material, etc.) for water purification and water reforming.

[0003]

[Problems to be solved by the device]

 As described above, the conventionally used sand separators, filtration devices, etc. are each formed as a single type. There is also a device that connects them in series to form a water purification system. Although sand and sand are removed by the sand separator, dust in wastewater is not removed, and of course, water purification and reforming are not performed. On the other hand, if filthy water is directly introduced into the filter, sand will be trapped 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 cost of the device becomes expensive, and a large floor area is required, which is contrary to space saving. . Furthermore, maintenance is difficult.

The present invention solves the above problems, and can remove sand and dust, and can be compacted to reduce the cost of the device, and can also purify and reform water. The purpose is to provide an attached water purification device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a cylindrical sand separator equipped with an inlet pipe for waste water containing sand and dust, and a drain pipe for treated water containing a filter member inside. A cylindrical filtration device integrally connected to the sand separator; and an intermediate passage that connects the filtration device and the sand separator, wherein the introduction pipe is tangentially connected to the sand separator, The intermediate passage is characterized by a water purifier with a sand separator, which is a cylindrical body having an appropriate axial length and opened at the upper and lower ends and is disposed along the axial direction at a substantially central portion of the sand separator. Note that specifically, a filter material, a filter, or the like is adopted as the filtering member, and a water purifying device for purifying and modifying water is attached downstream of the filtering device. It is also characterized by the provision of a switching valve to selectively perform purified water treatment and backwashing.

[0006]

[Action]

 The sewage is introduced into the sand separator from the tangential direction by the introduction pipe and becomes a vortex inside. Therefore, the sediments contained in the wastewater are separated and stored below the sand separator. The water from which the sediments have 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 and reformed by a water purifier. On the other hand, by operating the switching valve, the water for backwash enters through the drain pipe, backwashes the filtering member, and is discharged from the side separator side. As described above, sand removal, filtration, and water purification of sewage are performed by this compact device.

[0007]

【Example】

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

As shown in FIG. 1, a water purification device 1 with a sand separator includes a sand separator 2 arranged on a lower side, a filtration device 3 mounted thereon and detachably connected, and a sand separator 2 It is composed of an intermediate passage 4 and the like provided in a substantially central portion of the inside. A water conduit 7 is connected to the sand separator 2, and a drain pipe 8 is connected to the filtering device 3. Further, 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 10 and the backwash water supply source 11 via the water supply pump 9, and is further connected to the drainage side 12, the water purification device 6, and the like.

The sand separator 2 is composed of a hollow cylindrical body, and the lower side thereof is formed in a tapered shape so as to smoothly discharge the accumulated sand and the like. A discharge valve 13 is provided on the tapered lower end side. The sand separator 2 is placed on the ground surface 15 by the pillars 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 thereof.

The intermediate passage 4 is formed of a hollow cylindrical body 17 forming an upper opening 19 and a lower opening 20, and a flange plate 18 connected to the 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 arranged 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 hollow cylindrical body 21 is composed of the filter medium 23 and the like filled in the gap between the hollow cylindrical body 21 and the inner wall thereof, and the drain pipe 8 is connected to the hollow cylindrical body 21 as described above. The hollow cylindrical body 21 is flange-connected to the upper end of the sand separator 2, and an intermediate chamber 25 is formed between the flange plate 24 and the flange plate 18 of the intermediate passage 4. 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. An air discharge pipe 29 is connected to the cap 28. Further, a large number of air escape holes 38 formed in the flange plate 26 communicate with the air chamber 27.

FIG. 4 shows a mounting structure of the filter 22 and a state in which the filter medium 23 is filled and stored. A screw ring 31 forming a through hole 30 is screwed into 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 onto the screw ring 31. The screw bush 32 is fitted on the lower end side of the filter 22. The filter 22 is composed of a filter cylindrical body 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. The flange plate 26 is sealed by the packings 33 and 39. A support rod 35 is screwed onto the flange surface 34 of the screw bush 32. The support rod 35 is arranged in the filter 22 and its upper end penetrates the flange plate 26. The support rod 35 is fixed to the flange plate 26 by a nut 36. As shown in FIG. 4, a gap having an appropriate volume is formed between the adjacent filters 22 and 22 and the filter medium 23 is filled therein.

The five-way switching valve 5 comprises connection ports A, B, C, D and E. The connection port A is connected to the dirty water 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 conduit 7, and the connection port C is connected to the drain pipe 8. The connection port is connected to the water purifier 6, and the connection port E is connected to the drain side 12.

Although the detailed structure of the water purifier 6 and the detailed structure of the connecting pipes and the backwash mechanism are omitted, the water purifier 6 is filled with a water purifier for activating and reforming water. The purified water is supplied to the users.

Next, the operation of this embodiment will be described. Waste water containing dirt and dust from the waste water side 10 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 are in communication with each other, the sewage proceeds from the connection port B to the water conduit 7 and is introduced into the sand separator 2. As shown in FIG. 2, since the water conduit 7 is tangentially connected to the outer wall 16, the wastewater moves in the sand separator 2 in a vortex as shown in the figure. In this case, since the hollow cylindrical body 17 of the intermediate passage 4 extends downward by an appropriate length, sewage does not directly enter the hollow cylindrical body 17. Therefore, the earth and sand contained in the sewage is separated and stored on the bottom side of the sand separator 2. The water from which soil and the like has been separated enters through the lower opening 20 of the hollow cylindrical body of the intermediate passage 4 and advances into the intermediate chamber through the upper opening 19. The earth and sand accumulated in the sand separator 2 is appropriately discharged 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 the dust and the like are removed. The water filtered by the filter 22 is further filtered and purified by the filter medium filled in the hollow cylindrical body 21 of the filter device 3. The filtered and purified water is discharged from the drainage pipe 8 to the connection port C of the five-way switching valve 5 as shown in FIG. In this case, since the connection port C and the connection port D are in communication with each other, water proceeds to the connection port D and is introduced into the water purifier 6. The water further purified and reformed by the water purifier 6 is sent to the user side. On the other hand, the air generated in the hollow cylindrical body 21 of the filter device 3 enters the air chamber 27 of the cap 28 through the air escape hole 38 and is discharged from the air discharge pipe 29. Therefore, the water is smoothly discharged from the drain pipe 8. As described above, sand is removed, purified, and reformed by passing through the water purifier 1 with a side separator, which is compactly integrated into a single structure.

When the water purifier 6 is not attached, the sand removed and the filtered water is sent directly from the connection port D to the user 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, normal water is sent to the drain pipe 8 side by connecting the connection ports A and C and blocking the communication between the connection ports C and D. Usually, water flows back through the filter medium 23 and the filter 22, backwashes them, enters the intermediate chamber 25 through the through hole 30 of the screw ring 31, and flows backward through the intermediate passage 4 toward the water conduit 7. In this case, since the connection port B and the connection port E communicate with each other, the backwashed water is sent from the connection port E to the drain side 12.

In the present embodiment, the illustrated sand separator 2 is adopted, but a commonly known sand separator may of course be applied. Further, the connection of the water conduit 7 may not be orthogonal to the axis of the sand separator 2 as shown in the figure. Further, the shape and size of the hollow cylindrical body 17 of the intermediate passage 4 are not limited to those shown in the drawings. In the present embodiment, the contents of the filter 22 and the filter medium 23 have not been described in detail, but an appropriate known one can be selectively used depending on the purpose of use of the device.

[0018]

[Effect of device]

 According to the present invention, the following remarkable effects are obtained. (1) Since the sand separator and the filtration device are integrated into a compact structure, space can be saved and equipment cost can be reduced. (2) Since the water from which sand has been removed is sent to the filtering device side, the degree of clogging of the filter is reduced, and filtration efficiency and water purification efficiency can be improved. In addition, the life of filters can be improved. (3) By connecting the introduction pipes tangentially and forming an intermediate passage, the sediment in the wastewater can be reliably separated. (4) The sand separator and the filtration device are detachably connected to each other, which facilitates maintenance. Also, because of the integrated structure, the work of removing the connecting pipes during maintenance is reduced, and the time can be shortened. (5) Since it can be backwashed, the filter and filter material in the filter can be used for a long time.

[Brief description of drawings]

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

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

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

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

[Explanation of symbols]

 1 Water purifier with sand separator 2 Sand separator 3 Filtration device 4 Intermediate passage 5 Five-way switching valve 6 Water purifier 7 Water conduit 8 Drain pipe 9 Water pump 10 Waste water side 11 Backwash water supply source 12 Drain side 13 Discharge valve 14 Strut 15 surface 16 outer wall 17 hollow cylinder 18 flange plate 19 upper opening 20 lower opening 21 hollow cylinder 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

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B01D 29/50 24/40 29/90

Claims (5)

[Scope of utility model registration request] 1. A cylindrical sand separator provided with an inlet pipe for waste water containing sand and dust, and a drainage pipe for treated water having a filtering member housed therein and provided integrally with the sand separator. And a cylindrical filtration device, and an intermediate passage communicating the filtration device and the sand separator, the introduction pipe is connected to the sand separator along the tangential direction, the intermediate passage is substantially the sand separator A water purifier with a sand separator, comprising a tubular body having an appropriate axial length and opening at the upper and lower ends, which is disposed in the central portion along the axial direction. 2. The water purifier with a sand separator according to claim 1, wherein the filtering member is composed of a plurality of filters arranged in parallel in a cylinder. 3. The water purifier with a sand separator according to claim 1, wherein the filter member is composed of the filter and a filter material filled in a gap between the outer periphery of the filter and the cylindrical body. 4. A water purification device with a sand separator, which is provided with a water purification device for purifying and reforming water downstream of the filtration device. 5. The purified water with a sand separator in which the water pipe and the drain pipe are selectively connected to a supply water source, a used water side, a drain side, a backwash water supply side, and the water purifier side through a switching valve. apparatus.