KR100826971B1 - Natural water clean apparatus - Google Patents

Abstract

A raw water purification apparatus is provided to purify the raw water by carrying out flocculation, settling and filtration of raw water through one apparatus, purify the raw water in succession even without a cleaning operation of a filter layer, and remove suspended solids suspended in an upper part of a settling tank without using a separate removal unit. A raw water purification apparatus comprises: a water tank(1) sequentially including, from a lower part, a catchment chamber(12), a filtration chamber(13) with a bottom filtration part(131), a purified water chamber(14) with a bottom drainpipe(142), and a settling chamber(15) with a bottom drainpipe(155); a mixing chamber(2) which is formed in the center of the catchment chamber and the filtration chamber, into which raw water mixed with a flocculant flows through a raw water inflow pipe(21), and which supplies raw water containing flocculated alien substances into the settling chamber through a first ascension pipe(24); a flotation system(3) which is formed in the center of the settling chamber such that supernatant of the settling chamber is collected in a supernatant collecting unit(151) and supplied to the lower part through a first inflow pipe(4), and which has circumferential space parts(153,32) formed between an inner side pipe(22) and an inner upper circumference thereof to collect supernatant; a plurality of second inflow pipes(5) formed between the circumferential space parts and the filtration chamber; a recovery pipe(6) formed between an upper part of the inner side pipe and the raw water inflow pipe to recover water containing suspended solids to the raw water inflow pipe; a second ascension pipe(121) for ascending water collected in the catchment chamber to the purified water chamber; and a purified water discharge pipe(141) for discharging supernatant of water filled in the purified water chamber. Further, the first inflow pipe additionally contains an air supplying pipe for flowing air having a regular pressure.

Description

Raw water clean apparatus

The present invention relates to a raw water purifying apparatus, and more particularly, to a raw water purifying apparatus that allows the raw water to be purified by agglomeration, sedimentation, and filtering through one apparatus.

In general, when purifying natural water such as river water or reservoirs (hereinafter referred to as "raw water") to obtain purified water, a flocculant is added to the raw water to agglomerate foreign matter contained in the raw water, and then a precipitate is settled to cause injury. After filtering, the purified water is filtered to obtain an integer.

In other words, when the raw water is purified, a mixing tank which receives raw water and injects a flocculant to agglomerate foreign matters contained in the raw water, precipitates foreign matters having a greater specific gravity than water by injecting raw water from the mixing tank, and floats floating materials. It is to purify the raw water through a sedimentation tank for removing water with a separate float removal device, and the filter tank for final purification of the raw water through filtering by receiving the supernatant of the sedimentation tank.

However, when the raw water is purified through the above process, the mixing tank, the settling tank and the filter tank are necessary, and thus, a large space is required during construction and a lot of facility investment costs are required.

In addition, the mixing tank, the sedimentation tank and the filter tank must be driven separately, and the water must be moved to each tank, so that there is a problem in that a lot of driving power is lost during the purification of raw water.

In addition, the filter of the filter tank has to be replaced from time to time to filter.

In addition, there is a problem that the cost of the floating material is consumed by physically removing the floating matter floating on the upper part of the settling tank through the operation of a separate floating material removing device.

Accordingly, the present invention has been invented to solve the above problems, it is an object of the present invention to provide a raw water purification device that can purify the raw water through coagulation, sedimentation, filtering with one device.

There is also another purpose to continuously purify the raw water without cleaning the filter layer.

In addition, there is another object to be able to treat the floating floating on the top of the sedimentation tank without using a separate treatment means.

The present invention for achieving the above object, the collection tank from the bottom, the filtration chamber having a lower filtration unit, the water purification chamber with a lower drain pipe, the sedimentation chamber provided with a lower drain pipe; A mixing chamber provided at the center of the collection chamber and the filtration chamber to supply the raw water in which the coagulant is mixed through the raw water inlet pipe, and supply the raw water in which the foreign matter is agglomerated through the first rising pipe; A floatation tank provided in the center of the precipitation chamber, the supernatant of the precipitation chamber being collected by the supernatant collecting means and supplied to the lower portion through the first inflow pipe, and having a circumferential space for collecting the supernatant in the inner tube and the inner upper circumference; A plurality of second inflow pipes provided between the peripheral space and the filtration chamber; A recovery tube provided between the upper portion of the inner tube and the raw water inlet tube to recover water containing the suspended matter to the raw water inlet tube; A second rising pipe for raising water collected in the water collecting chamber to the water purification chamber; It includes a purified water discharge pipe for discharging the supernatant of the water filled in the purified water chamber.

In addition, the first inlet pipe, characterized in that the air supply pipe for introducing the air having a constant pressure is further provided.

In addition, the lower filtration unit is characterized by consisting of a filter layer consisting of a water permeable plate provided at the bottom and one of sand, activated carbon, filter body provided on the upper portion of the water permeable plate.

In addition, the inlet side of the raw water inlet pipe is provided with an orifice for vortexing the raw water, the discharge side of the orifice is provided with a chemical supply pipe for injecting flocculant is connected to the chemical container; The portion of the raw water inlet pipe is connected to the recovery pipe is characterized in that the venturi portion is further provided to increase the flow rate of the raw water to improve the cohesive effect of the drug and the recovered raw water.

In addition, the supernatant collecting means is formed around the outer upper periphery of the floating tank to collect the supernatant water to form a central circumferential space for moving the supernatant water to the first inlet pipe, and the upper supernatant is formed around the inner upper periphery of the settling chamber Characterized in that it consists of a peripheral space for introducing the supernatant water into the central peripheral space through a plurality of communication passages.

In addition, the lower portion of the water purification chamber and the lower portion of the settling chamber is characterized by consisting of a conical plate with a high center and low circumference.

In addition, the mixing chamber is provided with a raw water inlet pipe connected to the lower side and the inner circumference formed in the plurality of discharge holes on the upper periphery, and a lower passage between the outer side and the peripheral side wall of the inner tube, The interstitial space is characterized by consisting of the intermediate pipe is connected to the first riser.

In addition, the upper part of the filtration chamber, when the filtration unit is blocked and the water is filled in the upper portion of the filtration chamber to discharge the foreign substances and water remaining in the lower filtration unit to the outside, and normal filtration is performed when the water passes again from the lower filtration unit Characterized in that the filter unit washing means is further provided.

In addition, the filtration unit washing means is provided in the upper part of the filtration chamber, a siphon tube composed of an upward inclined tube drawn out to the outside of the water tank and a lower vertical tube closed, and a plurality of drainage formed around the lower portion of the downward vertical tube. A floating cylindrical ring provided around the hole and the periphery of the drainage hole to be elevated; A discharge tank having a lower drain pipe provided under the downward vertical pipe; When the water pressure of the water drawn out from the upper portion of the bent portion of the upward inclined tube and the downward vertical tube and passed through the cyphon tube increases, the water is supplied to the tank to raise the floating cylindrical ring, thereby through the cyphon tube. Characterized in that consisting of a discharge pipe for discharging the water containing the foreign matter.

The present invention as described above, by allowing one device to purify the raw water through coagulation, sedimentation, filtering, there is an effect of providing a raw water purification device that can be installed at a minimum cost.

In addition, by allowing the raw water to be purified continuously without cleaning the filter layer, there is an effect that can reduce the maintenance cost caused by the cleaning and replacement of the filter layer.

In addition, by allowing the float floating on the top of the settling tank to be treated without a separate treatment means, there is also an effect that can minimize the driving cost of the device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the water purifying apparatus of the present invention, Figure 2 is a cross-sectional view taken along the line A-A of Figure 1, Figure 3 is an enlarged cross-sectional view of the raw water inlet pipe according to the present invention.

Accordingly, the water purification device of the present invention includes a water collecting chamber 12, a filtration chamber 13 provided with a lower filtration unit 131, a water purification chamber 14 provided with a lower drain pipe 142, and a lower drain pipe 155 from the bottom. ) Is provided with a sedimentation chamber 15 is provided with a water tank (1) sequentially.

In addition, the water purification device of the present invention is provided in the center of the collecting chamber 12 and the filtration chamber 13, the raw water mixed with the coagulant is introduced through the raw water inlet pipe 21 and the foreign matter through the first riser 24 The mixing chamber 2 for supplying the aggregated raw water to the settling chamber 15 and the center of the settling chamber 15 are provided, and the supernatant of the settling chamber 15 is collected by the supernatant collecting means 151 and is formed. 1 Floating tank (3) which is supplied to the lower through the inlet pipe (4) and has a circumferential space (153) for collecting the supernatant water in the inner tube 22 and the upper inner circumference, and the circumferential space (153) A plurality of second inflow pipes 5 provided between the fruit 13 and water provided between the upper portion of the inner pipe 22 and the raw water inflow pipe 21 to contain the floating water is the raw water inflow pipe The collection pipe 6 to collect | recover to (21), the 2nd raising pipe 121 which raises the water collected by the said collection chamber 12 to the said water purification chamber 14, and the said water purification chamber 14 Jin intended to include the constant discharge pipe 141 for discharging the supernatant water.

The first inlet pipe 4 is further provided with an air supply pipe 41 having a constant pressure. That is, the air supply pipe 41 is connected to a separate compressor (not shown) to supply high-pressure air through the air supply pipe 41 to the inside of the flotation tank, thereby increasing the saturated oxygen of raw water.

On the other hand, the upper portion of the filtration chamber 13, when the lower filtration unit 131 is blocked due to the remaining of foreign matters and the water is filled in the upper portion of the filtration chamber 13, foreign matter and water remaining in the lower filtration unit 131 It is further provided with a filter unit washing means (7) to discharge the outside and the normal filtration when water is passed again in the lower filtration unit (13).

In addition, the filtration unit washing means (7) is provided on the upper portion of the filtration chamber 13, the inclined tube 711 which is drawn out of the water tank and the lower vertical pipe 712 is blocked down the bottom pipe. (71). That is, the bent portion is provided in the middle of the cyphon tube 71.

In addition, the filtering means (7), a plurality of drain holes 713 formed around the lower portion of the downright vertical pipe 712, and floating cylindrical ring 72 is provided to be able to move around the periphery of the drain hole (713) ), A discharge tank 73 having a lower drain pipe 731 provided below the downward vertical pipe 712, and an upper portion of the bent portion between the upward inclined pipe 711 and the downward vertical pipe 712. When the water pressure of the water drawn out to the discharge water tank 73 and passed through the cyphon pipe 71 is increased, the water is supplied to the discharge water tank 73 to raise the floating cylindrical ring 72, thereby increasing the cyphon pipe 711. It is composed of a discharge pipe (74) for discharging water containing foreign matter through).

Hereinafter, the present invention configured as described above will be described in more detail.

The lower filtration unit 131 provided at the lower portion of the filtration chamber 13 may include a water permeation plate 132 provided at a lower portion and sand, activated carbon, and a filter body provided at an upper portion of the water permeation plate 132. It is composed of a filter layer 133 composed of one.

And the inlet side of the raw water inlet pipe 21 is provided with an orifice 211 for vortexing the raw water, and the discharge side of the orifice 211 is provided with a chemical supply pipe 213 is connected to the medicine barrel 212 to inject a flocculant The venturi part 214 is further provided at a portion to which the recovery pipe 6 of the raw water inflow pipe 21 is connected to increase the flow rate of the raw water to improve the coagulation effect between the flocculant and the recovered raw water.

In addition, the supernatant collecting means 151 is formed around the outer upper periphery of the floating tank 3, the central peripheral space 152 for collecting the supernatant and moving the supernatant to the first inlet pipe 4, and the It is formed around the inner upper periphery of the settling chamber 15 is composed of a peripheral space 153 for collecting the supernatant to introduce the supernatant into the central peripheral space 152 through a plurality of communication passages (154).

In addition, the lower part of the water purification chamber 14 and the lower part of the settling chamber 15 are composed of a conical plate 16 having a high center and a low circumference, thereby depositing a precipitate that is settled in the lower part of the water purification chamber 14 and the settling chamber 15. It has an advantage that can be easily discharged.

In addition, the mixing chamber 2 has an inner tube 22 having a raw water inlet tube 21 connected to the lower portion and having a plurality of discharge holes 221 formed at an upper circumference, and an outer side of the inner tube 22. The lower passage 231 is provided between the circumferential side walls and the space between the outer side and the circumferential side walls is composed of an intermediate tube 23 to which the first riser 24 is connected.

Hereinafter, the operational relationship of the present invention configured as described above are as follows.

Figure 4 is a cross-sectional view showing the operating relationship of the present invention, the raw water pulled up from the river or reservoir into the raw water inlet pipe 21, the drug supply pipe 213 in the medicine container 212 connected to the raw water inlet pipe 21 Inject coagulant into the raw water flowing through.

Then, the raw water flowing into the raw water inlet pipe 21 may generate vortex while passing through the orifice 211 and increase the speed in the venturi tube 214 to improve the mixing efficiency of the flocculant and the raw water.

Then, the raw water flowing into the raw water inlet pipe 21 as described above is introduced into the mixing chamber 2 provided to be partitioned in the center of the collecting chamber 12 and the filtration chamber 13 and circulated up and down to the raw water. As the contained foreign matter aggregates, the floc of foreign matter grows, and the raw water having sufficiently agglomerated is raised through the first riser 24 to flow into the settling chamber 15, whereby the aggregated sediment sinks to the bottom and the float floats on the water surface. Injured up.

Next, the supernatant of the raw water of the settling chamber 15 flows into the center circumferential space 152 and the circumferential space 153 provided at the upper center and the circumference of the settling chamber 15, and then the center circumferential space 152. ) Is collected.

The supernatant collected by the central circumferential space 152 is supplied to the lower portion of the flotation tank 3 together with the air having pressure through the first inflow pipe 4, and then ascends and then descends to the circumferential side. In the space between 22) and the side wall.

In addition, the supernatant water raised in the space between the inner tube 22 and the side wall as described above is collected into the circumferential space portion 32 formed around the floating tank 3, and then opened through the second inflow pipe 5. It flows into the fruit 13.

Next, the raw water introduced into the filtration chamber 13 is filtered while passing through the lower filtration unit 131 constituting the filtration chamber 13, and then collected into the collection chamber 12 under the water tank 1.

Finally, the purified water filtered through the water collecting chamber 12 is introduced into the water purification chamber 14 through a plurality of second rising pipes 121 passing through the filtering chamber 13, and the purified water chamber 14 The supernatant of the purified water introduced into the) is discharged through the purified water discharge pipe 141, thereby purifying the raw water.

Therefore, by purifying raw water by coagulation, sedimentation, and filtering through a single water purification device through the above process, it is possible to provide a water purification device having excellent water purification function while reducing the construction cost of the water purification facility to the maximum. It is.

In particular, in the process of purifying the raw water as described above, by periodically opening the lower drain pipe (155, 142) provided in the lower portion of the sedimentation chamber 15 and the water purification chamber 14 to remove the sediment, to improve the treatment effect of the raw water. It can be.

In addition, as shown in Figure 4, by re-injecting the suspended matter suspended in the upper portion of the inner pipe (31) constituting the floating tank (3) with the raw water into the raw water inlet pipe 21, the raw water containing the suspended matter Reprocessing also has the advantage of not having to treat the float separately.

On the other hand, Figure 5 is a cross-sectional view illustrating a process of cleaning the filtering of the lower filter through the water purifying apparatus of the present invention, when the filter layer 133 is blocked by foreign matter in the process of purifying the raw water as described above, the filter chamber ( Raw water is filled to the top of 13).

The raw water filled in the upper portion of the filtration chamber 13 is filled in the cyphon tube 71 drawn out in the upper portion of the filtration chamber 13 due to the moving pressure of the raw water.

In addition, when the pressure of the raw water contained in the foreign matter filled in the cyphon tube 71 is increased, the raw water passes through the discharge pipe 74 provided in the upper portion of the bent portion of the cyphon tube 71 to be filled in the discharge water tank (73). do.

In addition, a portion of the water filled in the discharge tank 73 flows into the drain pipe 731, the water is filled in the discharge tank 73 to raise the floating cylindrical ring 72, the lower circumference of the cyphon pipe 71 The drainage hole 713 formed in the opening is opened.

Then, the raw water containing the foreign matter filled in the cyphon tube 71 is discharged through a plurality of drainage holes 713 formed around the lower portion of the downward vertical tube 712 of the cyphon tube 71. The raw water is discharged through the pipe tube 71 is continuously performed in a state in which the water in the filtration chamber 13 remains.

Then, when the cleaning of the filter layer 133 is completed through the discharge of raw water mixed with foreign substances remaining in the filter layer 133 as described above, the raw water flowing into the filtration chamber 13 passes through the filter layer 133 and is collected. As it is discharged into the chamber, the water level of the raw water is lowered in the upper portion of the filtration chamber 13 and the inflow of water into the cyphon tube 71 is blocked.

Therefore, when the cleaning of the filter layer 133 is completed, the normal water purification operation is performed, and thus, the filter layer 133 may be cleaned in the process of purifying the raw water without the process of cleaning the filter layer 133 separately.

1 is a perspective view showing a water purifying apparatus of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is an enlarged cross-sectional view of the raw water inlet pipe according to the present invention.

4 is a cross-sectional view showing the operating relationship of the present invention.

Figure 5 is a cross-sectional view illustrating a process of cleaning the filtering of the lower filter through the water purifying apparatus of the present invention.

<Description of the symbols for the main parts of the drawings>

1: tank

    12: water collection room

         121: second ascension tube

    13: filtration chamber

         131: lower filter part, 132: water permeable plate, 133: filter layer

    14: water purification room

         141: water purification pipe, 142: lower drain pipe

    15: settling chamber

         151: means for collecting the supernatant, 152: space around the center,

         153: circumferential space portion, 154: communication passage, 155: lower drain pipe

    16: conical plate

2: mixing chamber

    21: raw water inlet pipe

         211: orifice, 212: medicine container, 213: medicine supply pipe,

         214: Venturi Hall

    22: inner tube

    23: intermediate tube

         231: lower passage

    24: first riser

3: flotation

    31: inner tube, 32: peripheral space

4: the first inlet pipe

    41: air supply pipe

5: second inlet pipe

6: recovery tube

7: filtration unit washing means

    71: cyphon tube

         711: upward inclined pipe, 712: downward vertical pipe, 713: drainage hole

    72: floating cylindrical ring

    73: discharge tank

         731: drain pipe

    74: discharge pipe

Claims (9)

The sedimentation chamber equipped with the collection chamber 12 from the lower part, the filtration chamber 13 provided with the lower filtration part 131, the water purification chamber 14 provided with the lower drain pipe 142, and the lower drain pipe 155 ( 15) is provided with a water tank (1) sequentially; It is provided in the center of the collecting chamber 12 and the filtration chamber 13, the raw water in which the coagulant is mixed through the raw water inlet pipe 21 is introduced, and the raw water in which the foreign matter is agglomerated through the first rising pipe 24 is precipitated. A mixing chamber 2 for supplying the chamber 15; It is provided in the center of the settling chamber 15, the supernatant of the settling chamber 15 is collected in the supernatant collecting means 151 is supplied to the lower through the first inlet pipe 4 and the inner tube 22 and the inner upper circumference A floating tank (3) having a circumferential space (153) for collecting the supernatant therein; A plurality of second inflow pipes 5 provided between the peripheral spaces 153 and 32 and the filtration chamber 13; A recovery pipe (6) provided between the upper portion of the inner pipe (22) and the raw water inlet pipe (21) to recover water containing the suspended matter to the raw water inlet pipe (21); A second rising pipe 121 for raising water collected in the water collecting chamber 12 to the water purification chamber 14; Purification discharge pipe 141 for discharging the supernatant of the water filled in the purified water chamber (14); Raw water purifying apparatus comprising a. 2. The raw water purifier according to claim 1, wherein the first inlet pipe (4) is further provided with an air supply pipe (41) for introducing air having a constant pressure. The method of claim 1, wherein the lower filtration unit 131, And the water penetrating plate 132 provided at the bottom, Raw water purifier, characterized in that consisting of a filter layer 133 made of one of the sand, activated carbon, filter body provided on the upper portion of the water transmission plate (132). According to claim 1, wherein the inlet side of the raw water inlet pipe 21 is provided with an orifice 211 for vortexing the raw water, the discharge side of the orifice 211 is connected to the chemical container 212, the chemical supply pipe for injecting flocculant ( 213); Raw water purified water, characterized in that the portion of the raw water inlet pipe 21 is connected to the venturi portion 214 is further provided to improve the cohesive effect of the drug and the recovered raw water by increasing the flow rate of the raw water Device. The method of claim 1, wherein the superior number collecting means 151, A central circumferential space portion 152 formed around the outer upper periphery of the floating tank 3 to collect the supernatant water and to move the supernatant water to the first inflow pipe 4; It is formed around the inner upper periphery of the precipitation chamber 15 is composed of a peripheral space portion 153 for collecting the supernatant to introduce the supernatant water into the central peripheral space portion 152 through a plurality of communication passages (154) Raw water purifier. 2. The raw water purifier according to claim 1, wherein the lower part of the purified water chamber and the lower part of the settling chamber (15) are composed of conical plates (16) having a high center and low circumference. The mixing chamber (2) according to claim 1, Raw water inlet pipe 21 is connected to the lower portion and the inner tube 22 formed in the plurality of discharge holes 221 around the upper portion, It is provided with a lower passage 231 between the outer side and the circumferential side wall of the inner tube 22 and the space between the outer and the circumferential side wall is composed of an intermediate tube 23 connected to the first rising tube 24. Raw water purifier, characterized in that. The upper portion of the filtration chamber 13 according to any one of claims 1 to 7, When the filtration unit is blocked and the water is filled in the upper part of the filtration chamber 13, foreign substances and water remaining in the lower filtration unit 131 are discharged to the outside, and when the water passes again from the lower filtration unit 131, normal filtration is performed. Raw water purifier, characterized in that the filter unit washing means 7 is further provided. The filter unit washing means (7) according to claim 8, A siphon tube 71 including an upward inclined tube 711 provided at an upper portion of the filtration chamber 13 and a lower vertical tube 712 closed at a lower portion thereof, and A plurality of drainage holes 713 formed around the lower portion of the downward vertical tube 712, A floating cylindrical ring 72 surrounding the circumference of the drain hole 713 and provided to be elevated; A discharge tank (73) having a lower drain pipe (731) provided below the downward vertical pipe (712); When the water pressure of the water which is drawn out from the upper portion of the bent portion of the upward inclined tube 711 and the downward vertical tube 712 and passes through the cyphon tube 71 is increased, the water is supplied to the tank. Raw water purification device, characterized in that consisting of a discharge pipe (74) for discharging the water containing the foreign matter through the siphon pipe (71) by raising the floating cylindrical ring (72).

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